View source for NL-13-1528, Response to Request for Information on the Plant Hatch License Amendment Request to Revise the Minimum Water Level in the Plant Service Water Pump Well

{{Adams
| number = ML13204A044
| issue date = 07/22/2013
| title = Response to Request for Information on the Plant Hatch License Amendment Request to Revise the Minimum Water Level in the Plant Service Water Pump Well
| author name = Pierce C
| author affiliation = Southern Co, Southern Nuclear Operating Co, Inc
| addressee name = 
| addressee affiliation = NRC/NRR, NRC/Document Control Desk
| docket = 05000321, 05000366
| license number = 
| contact person = 
| case reference number = NL-13-1528
| document type = Letter type:NL, Technical Specification, Amendment
| page count = 151
| project = 
| stage = Response to RAI
}}

=Text=
{{#Wiki_filter:Charles R. Pierce             Southern Nuclear Regulatory Affairs Director   Operating Company, Inc.
40 Inverness Center Parkway Post Office Box 1295 Bi rm ingham , Alabama 35201 Tel 205.992.7872 Fax 205.992.7601 July 22, 2013 SOUTHERN ' \ '
COMPANY Docket 1\1 os. : 50-321                                                  NL-13-1528 50-366 U. S. Nuclear Regulatory Commission ATTN: Document Control Desk Washington, D. C. 20555-0001 Edwin I. Hatch Nuclear Plant Response to Request for Information on the Plant Hatch License Amendment Request to Revise the Minimum Water Level in the Plant Service Water Pump Well

==References:==
: 1. Southern Nuclear Operating Company Letter, NL-12-1 078, dated July 5,2012, "License Amendment Request to Revise the Minimum Water Level in the Plant Service Water Pump Well".
: 2. NRC Letter dated September 11, 2012, "Request for Additional Information (TAG NOS. ME9004, ME9005)".
: 3. Southern Nuclear Operating Company Letter, NL-12-1916, dated October 10, 2012, "Request to Revise the Plant Service Water Well Minimum Water Level Response to Request for Additional Information Regarding the Environmental Evaluation".
Ladies and Gentlemen:
By Reference 1, Southern Nuclear Operating Company (SNC) requested amendments to the Edwin I. Hatch Nuclear Plant Units 1 and 2 Technical Specifications (TS). The proposed amendments would revise the minimum water level referenced in the Units 1 and 2 TS Surveillance Requirement associated with the Limiting Condition for Operation (LCO) for the plant service water system (PSW) system and ultimate heat sink (LCO 3.7.2).
By Reference 2, NRC requested additional information regarding the referenced submittal and, by Reference 3, SNC provided the response.

u.s. Nuclear Regulatory Commission NL-13-1528 Page 2 On April 17, 2013, SNC and NRC personnel held a phone call to clarify environmental issues associated with the impact of the proposed change on the Spiney Mussel, a type of Mussel found in the Altamaha River. During the phone call, SNC personnel discussed publically available information on dredging permits issued to SNC during the last several years, as well as recent communications with U.S. Fish and Wildlife Service personnel. At the conclusion of the call, SNC agreed to provide copies of communications with the Fish and Wildlife Service regarding endangered species, recent dredging information and the last dredging permit application. That information was provided to NRC informally.
Recently, NRC requested further information, specifically a correspondence between SNC and the U.S. Fish and Wildlife Service from l\Iovember of 2006.
That correspondence is included in the Enclosure to this letter.
This letter contains no NRC commitments.
If you have any questions, please contact Ken McElroy at (205) 992-7369.
Mr. C. R. Pierce states he is Regulatory Affairs Director of Southern Nuclear Operating Company, is authorized to execute this oath on behalf of Southern Nuclear Operating Company and, to the best of his knowledge and belief, the facts set forth in this letter are true.
Respectfully submitted, Mr. C. R. Pierce Regulatory Affairs Director CRP/OCV/
                                            ~ day of_CL..;:;p...d....L"-=-~___, 2013.
                      /)
Sworn to and subscribed before me this r            if
~81AA ;f! G~4 Notary Public My commission expires:        11-11 2 - 13

U.S. Nuclear Regulatory Commission NL-13-1528 Page 3

==Enclosure:==
SNC Letter from J.M. Godfrey, Environmental Affairs Manager, SNC, to Jimmy Rickard, U.S. Fish and Wildlife Biologist, November 10, 2006, and attachments.
cc:   Southern Nuclear Operating Company Mr. S. E. Kuczynski, Chairman, President & CEO Mr. D. G. Bost, Executive Vice President & Chief Nuclear Officer Mr. D. R. Madison, Vice President - Hatch Mr. B. L. Ivey, Vice President - Regulatory Affairs Mr. B. J. Adams, Vice President - Fleet Operations RTYPE: CHA02.004 U. S. Nuclear Regulatory Commission Mr. V. M. McCree, Regional Administrator Mr. R. E. Martin, NRR Senior Project Manager - Hatch IVIr. E. D. Morris, Senior Resident Inspector - Hatch State of Georgia Mr. J.H. Turner, Environmental Director Protection Division U.S. Fish and Wildlife Service Mr. Jimmy Rickard, Biologist

Edwin I. Hatch Nuclear Plant Response to Request for Information on the Plant Hatch License Amendment Request to Revise the Minimum Water Level in the Plant Service Water Pump Well Enclosure Correspondence from SNC to U.S. Fish and Wildlife Service, Dated November 10, 2006

Enclosure to NL-13-1528 SNC Letter to U. S. Fish and Wildlife Service, Dated November 10, 2006 Southern Nuclear Operating Company. Inc.
42 Inverness Center Parkway Birmingham. Alabama 35242 SOUTHERN;"
* COMPANY Energy to Serve Your World"'
File: E.02.16 Log: EV-06-2576 November 10, 2006 Mr. Jimmy Rickard Fish and Wildlife Biologist U.S. Fish and Wildlife Service 105 Westpark Drive, Suite D Athens, Georgia 30606

==Dear Mr. Rickard:==

Southern Nuclear (SNC) and Georgia Power (GPC) have re-evaluated studies and reports addressing incorrect statements in the Species Assessment and Listing Priority Assignment (SALPA) (June 10,2004) relative to the operation of Plant Hatch and the potential for that operation to impact the environment. As stated in our previous letter dated October 27,2005, Plant Hatch uses closed cycle cooling towers. Cooling towers, are considered Best Available Technology (BAT) by the Environmental Protection Agency and are designed specifically to minimize impingement and entrainment as well as thermal discharge concerns mentioned in the SALPA. These
         . cooling towers dissipate most of the excess heat generated from equipment cooling associated with electricity production through evaporation, reducing both the volume of water withdrawn (thereby reducing impingement and entrainment by a significant percentage) and temperature of the thermal discharge. Additionally, information and data is provided to correct statements regarding dredging and flows contained in the SALPA. The following paragraphs summarize the information discussed above.
Entrainment. The percent of eggs, and larvae entrained (assuming a uniform
* distribution within the river) is usually at or below 1% during spring and early summer, the time of year mature glochidia are present (Wiltz, 1981; see Table 5). Expected survival estimates of entrained fishes to actual glochidia hosts (juveniles and adults are not entrained due to 3/8-inch mesh screens) would further reduce these estimates.
Addftiona"y~entrarne(feggs a.nd larvae are directly co rrelated tospedes abunda.nce in the area, so commonly entrained fishes are also species common to the area.
Although not addressed as a concern in the SALPA, the low impingement rate (1.2 fish/day) from the 1980 study reinforces the minimal environmental effect of the intake structure.

Enclosure to NL-13-1528 SNC Letter to U. S. Fish and Wildlife Service. Dated November 10. 2006 Page 2 EV-06-2576 Thermal discharge. Predictive models and field verification (Guill. 1980) confirmthe Nuclear Regulatory Commission's conclusion 1 of the small size of the thermal plume even under conservative assumptions, and the lack of the possibility of thermal blockage in the Altamaha River from the plant discharge. During the 1980 drought, thermal plumes either did not exist, did not extend far enough downstream for .
detection at a transect 200 feet from the discharge,or, under the mostextreme conditions (817/1980, period of lowest river flow and greatest discharge temperature),
resulted in a river temperature rise of O.05&deg;F. Therefore, conditions do not exist due to Plant Hatch that could promote "heat stress, algal blooms, and oxygen depletion;'. To the contrary, temperature monitoring during a drought year show that changes in temperature due to Plant Hatch rarely exceed 0.05 OF, and no algal blooms nor oxygen depletion have been recorded or reported.
Dredging. As addressed in our October 2ih letter Plant Hatch has not expanded operations as stated in the SALPA. A pennit renewal and modification was obtained on September 7, 2005, increasing the allowable dredged volume from 35,000 to 44.424 cubic yardS. This increase is expected to reduce the frequency of dredging and make the area more amenable to natural flushing during high flow events (Law, 1998).
The dredging footprint and adjacent areas are poor habitat for mussels with relatively steep banks, shifting sand bars, and higher currents . . Additionally, the dredging permit contains specific requirements, including those inserted by the US Fish & Wildlife Service during the permitting process and repeated in the SALPA, to ensure protection of aquatic species.
Flows. The SALPA (see page 11) refers to changes in flows from dam operations at
       . Lakes Jackson and Sinclair. These statements are incorrect. The dams occur 250 and 143 miles, respectively, upstream of the Ocmulgee-Oconee confluence, which is approximately 14 miles upstream of Plant Hatch. Due to current liceriseconditionsand flow agreements there are no "drastic flow reductions or alterations" due to dam operations in known habitats of the Altamaha spinymussel in the Altamaha basin. To the contrary, flows from these dams are controlled to ensure downstream biological water demands especially during drought periods.
lNUREG-0147, Final Environmental Statement for Edwin 1. Hatch Nuclear Plant Unit 2; Georgia Power Company; Docket Nos. 50-366, Atomic Energy Commission, March 1978.

Enclosure to N L-13-1       SNC Letter to U. S.         and Wildlife Service, Dated November 10, 2006 Although the decline in the Altamaha spinymussel is likely the result of cumulative effects, stqtements in the SALPA that Plant Hatch has a direct or indirect role in its decline are not             by scientific information or data. Please ensure that the inaccurate statements contained in the SALPA are corrected. If you have questions or comments regarding Plant Hatch please contact Jessica Joyner at (205) 992-7693.
      ~ J. M. Godfrey Environmental Affairs Mana JMG:ahf Enclosures cc:      Ms. Sandra Tucker, FWS - Athens             (w/o Attachments)
Mr.       Hamilton, FWS Region Four Director (w/o Attachments)
               . Mr. Brett Albanese, Georgia DNR Natural Heritage Program

Enclosure to NL-13-1528 SNC Letter to U. Fish and Wildlife Dated November 10, 2006 Page 4 EV-06-2576 bee:
R. D.Just T. D. Blalock B.C. Terry L. M. Stinson T. Moorer G.B. Weyman W. E. Duvall W. J. Candler D. H. Warren M. A. Abney B. K. Feimster C. P. Hardin

Enclosure to NL-13-1528 SNC Letter to U. S. Fish and Wildlife Service, Dated November 10,2006 PLANT EDWIN I. HATCH 316(b) DEMONSTRATION ON THE ALTAMAHA RIVER IN APPLING COUNTY, GEORGIA GEORGIA POWER COMPANY ENVIRONMENTAL AFFAIRS CENTER JOHN W. WILTZ, PRINCIPAL INVESTIGATOR March, 1981

to NL-13-1528 SNC   to U. S.        and Wildlife Service, Dated November 10, 2006 ACKNOWLEDGMENTS I wish to acknowledge the                   Power COlnpQlny Nichols for assistance in                  and fish                      James A.
Gardner for           Part                 in the                         and Randy Ott for                                     A. Breece, Ben L. Maulsby.
and Mike C.                   manUI3Cl~i~,t. I        wish to acknowledge the biologists and                       in procuring and             of. samples.
i

Enclosure to NL-13-1528 SNC       to U. Fish and Wildlife     November 10, 2006 TABLE OF CONTENTS vi
  'Introduction                                              1 Part I Entrainment Materials and Methods                               2 Results Part 1                                              3 Part 2                                              3 Part 3                                              4 5
summary                                             6 Part I I Impingement Materials and Methods                               7 Results Part 1                                               8 Part 2                                               8 Discussion                                           9 summary                                              9 References                                                10 ii

Enclosure to NL-13-1           SNC Letter to U.          Fish and Wildlife Service, Dated November 10, 2006 UST OF TABLES
: 1. Scientific And Common Names               OfFish Collected             Entrainment                                           II
: 2.            Number of Individuals Collected For Each And Night, Totals For The Month, For Day And Percent Concentration Of Each Taxa Family.                                                           12
: 3. Mean And           OfThe Total         For Each For       Month Samples.                                            14
: 4. Average Monthly Densities For Each Family, The Estimated Number Found In The River In The Of The Plant, The Percentage Entrained, And the Estimated Number Entrained.                                                 .17
: 5. Altamaha River Average Monthly               Plant Hatch River Pumping Data, And The            River Entrained For Each Month For 1975,1976, and 1980.-                          19
: 6. Percent Composition Of Abundant Fish Taxa For 1974 1975,1976, 1979,And 1980.                                                   20
: 7. Comparison of Monthly Entrainment Data For Each Taxa For 1915,1916, and 1980 For Plant Hatch.                                21
: 8.           And Numbers OfFish Collected In Monthly Surveys At Plant Edwin I. Hatch For 1980.                                                                        22
: 9. Species And Numbers OfFish Collected In Impingement Surveys At Plant Edwin I. Halch For 1975,1976,1977, 1979, and 1980.                                                              23 iii

Enclosure to NL-13-1528 SNC Letter to U.                   and Wildlife Service, Dated November 10, 2006 LIST OF FIGURBS
: 1. Plant Edwin I. Hatch Site.                                                  24 lAo Plant Edwin I. Hatch Layout.                                                25
    .2. Plant \..v'v ...... "'~ Water And, Plant Service Wa.ter System For Unit 2.                                                                 26 2A. Plant Edwin I. Hatch Intake'Structure.                                      27
: 3. Location Of The Entrainment Sampling Stations On The Altamaha River At Plant Edwin I. Hatch.                                     28
    '4. Air Temperatures' For The Day And Night Entrainment
        !'In'r\1'.,\J''' On The Al t.a.maha River At Plant Edwin 1. HatCh 1980     September, ~980.                          .29
: 5.                                For The                Entra,inment Altamaha River             Edwin 1. Hatch 1980 - September, 1980,                             30
: 6.                            Concentrations For The Day And Night On The Altamaha River At Plant Edwin 1. Hatch From February, 1980 - September, 1980.                        31
: 7. pH Values For The Day And Night Entrainment Surveys On The Altamaha River At Plant Edwin I. Hatch From February, 1980 - September, 1 9 8 0 . '                                     32
: 8. Specific Conductance For The Day And Surveys On The Altamaha River At Plant From February, 1980 - September, 1980.                                      33
: 9. Altamaha River Cross Section And Velocity Profile For River Elevation 19.7 m.                                                     34
: 10. Altamaha River Cross Section And Velocity Profile For River Elevation 21.5 m.                                                     35
: 11. Impingement Basket At Plant Edwin I. Hatch.                                 36
: 12. Water Temperatures For The Altamaha River At The Of Each Impingement Survey At Plant Edwin I.
From January. 1980 - December, 1980.                           37
: 13. water Temperatures For The Altamaha River At The End Of Each Impingement                    At plant Edwin I. Hatch From January, 1980 -                      1980.                             38 iv

Enclosure to NL-13-1528 SNC Letter to U. S. Fish and Wildlife Service, Dated November 10, 2006 LIST OF F1GURBS (Con't)
: 14. River Elevation For The Altamaha River At The Beginning Of Each Impingement Survey At Plant Edwin I. Hatch From January. 1980 - December. 1980.                    39
: 15. River Elevation For The Altamaha River At The End Of Each Impingement Survey At Plant *Edwin I. Hatch From January. 1980 - December, 1980.                              40 v

Enclosure to NL-13-1528 SNC Letter to U. S. Fish and Wildlife Service, Dated November 10, 2006 Conclusions
: 1. Fish egg and fish densities generally fluctuated directly with spawning intensity and inversely with river flow.
: 2. Relative abundance of fish families varied during the five years of study. but the Catostomidae and Cyprinidae were the most abundant taxa each year.
: 3. The density of most fish groups was greater in night samples than in similar day samples.
: 4. Estimated entrainment of fish and fish eggs into the cooling water has remained less than one percent of the total population during five successive spawning periods with the exception of the months of July. August. and September. 1980. The increase in estimated percent entrained during these months was due to extremely low river elevations resulting from the lack of raihfall.
: 5. The percent of river discharge entrained is dependent on the nulilber of intake pumps operating and river discharge. An increase in river discharge decreases the percent entrained.
: 6. An increase in entrained fish eggs *and larvae is not apparent for 1980 compared to 1975 and 1976. The differences in numbers of fish eggs and larvae are due to differences in species abundance from year to year, spawning activity upstream from the plant. river discharge. and time of year.
: 7. Based on the five years of stud y. estimated entrainment at Plant Edwin I. Hatch does not constitute a significant reduction in the fish population.
: 8. The hogchoker, Trinectes maculatus ,. was the most abundant and the only species collected consistently each year in the impingement sample.
: 9. Because of the very
* low mililber of fish impinged for the five years of study. an accurate correlation between river elevation and tbe number of fish impinged cannot be made.             .
: 10. The increased velocity at the bottom of the intake structure (caused by the intake pumps) may. to some degree. explain why the majority of the fish impinged were Trinectes maculatus. a bottom dweller.
: 11. Low intake velocities and site location are probably the primary factors resulting in low numbers of impinged fish.
: 12. The impingement data for the five years indicates that impingement losses at Plant Edwin T. Hatch are extremely low and that the plant does not create a significant environmental effect . .
: 13. The results of this investigation ful*fill the requirements set forth in NPDES Permit No. GA-0004120, Part 1-B-3.
vi

to NL-1     528 SNC         to U.          and Wildlife Service, Dated November 10, 2006 by the National Pollution Discharge Elimination System (tlPDES).
No. Ga .. 0004120, for Plant Hatch, a 316(b) demonstration was completed by Georgia Power               The 316 (b) demonstration                Was submitted to the G e o r s i a P r o t e c t i o n Division in June,               , and approved in August, '],977.
Plant Hatch, owned                                      corporation (30.0\), Municipal Electric                                                Dalton (2.2%), and "~DT*a'R Power Co'mp,any                                           17.7 kilometers (11 north                                                              The site is on the south bank of                                                      1. The site, Figures 1 and lA, consists of                                                acres). The area is characterized by The plant consists of two nuclear units. Unit 1 has a np,n~.~~
810                while Unit .2 has a generating capacity                               1 and        2 went into commercial operation on December 31.                and September 5, 1979, respectively.
A cool              flow diagram for plant Hatch Unit 2 is                  in Figure (Note:                 water          for Unit 1 is               to Unit 2).
intake                        water for the plant system       furnished by the Altamaha           . A single intake structure two service water pumps per unit are                  withdrawing approx.irolste    1.5 m3/sec (22,550 gpm) of water             normal              The also houses four residual heat removal                water pumps.
The pumps have a combined                 of 1.0 m3/sec (16.000 gpm) and operate when the reactor is shut down.                  two        are used when the system is operating withd~awing .52                                 the river.
The intake structure is                      45.7 meters (m) (ISO feet)          , 18.3 m (60 feet) wide, and                           feet) above normal river            The water             entrance is              m (27 feet) wide and extends 4.9 m feet)              10.1 m (33 feet) above normial water level. Large debris removed        trash racks, while small debris is removed by vertical traveling a 9.Smm (3/S-inch mesh). Water                through the intake screens is 57.9 em/sec (1.9 fpal at normal river                      and decreases at higher river flows.
1

Enclosure to NL-1      528 SNC Letter to U.         and Wildlife Service, Dated November 10, 2006 PART I ENTRAINMENT stations (11 and 12) were used to collect the diel entrainment stations were located in front of the intake structure (Il) across the river (12) as presented in Figure 3.
in February. 1980, and ended in September, 1980, with samples were collected using a Wildco No. 25 twin 0.5 m diameter plankton net a mesh size of .760 V.            duration was determined                  the .
river velocity with a                       Digital Flowmeter,          2030       , and with a calibrated curve, a time factor was obtained allowing for the filtering of                   500 cubic meters of water through the net. The volume of the net was determined with the use of a
* Model 2030 R2 flowmeter in the net.              were preserved in a 10% formalin solution and taken to the Environmental Affairs Center in Decatur,              for identification. Physicochemical data were ta~en at the beginning        the              and at the end of the night sample.
Dissolved oxygen concentration              and water temperature were measured with a Yellow Springs Instrument                      meter, Model 57.
conductance was measured with a                      Instrument Company           meter, Model 33, and pH was measured with                Research Ionalyzer, Model 399A.
Densities for each fish taxa collected were calculated as follows. The total number of individuals in each taxa was divided by the volume of river water filtered during day and           sampling to obtain the densities for each The estimated              for each month were obtained by averaging the for all           taken during the month. Estimates of total numbers and          the vicinity of the plant were obtained by densities by total monthly river discharge using near Baxley. The            of river discharge was              using total monthly               and the total volume of each month. The estimated number of           taxa entrained was multiplying densities by the number of individuals .in the plant by the percent of river discharge entrained.
The                 effects of the Hatch river intake structure upon the Altamaha River were               at river elevations 19.7 m (64.6 ft.) and estimated fo~
21.5 m (70.6 ft.).                        (at river elevation 19.7 m) were measured in seven 26 m sections of         river at 0.2, 0.6, and 0.8 of the depth in each section.
2

Enclosure to NL-13-1528 SNC Letter to U. S. Fish and Wildlife Service, Dated November 10, 2006 Results '
Part 1 Biological A total of 25 fish eggs and 442 fish (includes ' larval juveniles and adults) were collected in the eight month study. Specimens were not collected in the February samples. Most specimens. 24 eggs and 380 fish. were collected at night.                  '                      ,
The scientific and common names of the species collected are presented in Table 1. The family Cyprinidae (includes the cyprinids. Hybognathus nuchalis, Notropis chalybaeus. and NotI22j.-L petersoni were the most abundant with 128 fish comprising 29% of the total number of fish collected (Table 2). The next most abundant families were the Catostomidae with 101 fish (22.9\) and the Centrarchidae with 78 fish (17.6\). The least abundant family was the Soleidae with one fish (.2'). The family Clupeidae was represented by 48 fish (10.9%)
of which ,Alosa sapidissima comprised 10.4' (46 fish) . Eleven Alosa sapidissima eggs were collected (44' of the total number of eggs collected).
The mean and range (in parenthesis) o'f total lengths for the species and the month in which they were collected are .presented in Table 3.
Monthly densities for each family for the month they were collected, the estimated number of fish eggs and fish entrained by ,the plant, the estimated number found in the river in the vicinity of the plant. and the estimated percent entrained are given for 1980 in Table 4. The highest estimated number of fish entrained was for the family Centrarchidae at 4920.9 individuals in June. This estimate assumes a homogenous dispersal of fish in the-water (so the actual number entrained will vary). The lowest estimates were for the family Esocidae 'at 61.1 individuals in April. The month of September had the highest percent entrainment of 3.52\ with the months of March and April the lowest at .21\.     '                                   ,
Part 2 Physicochemical Air temperatures recorded during the study are presented in Figure 4. The highest temperature was for the day sample in August at 32.4 C, and the lowest was the night sample in February at 12.0 C. Water temperatures are presented in Figure 5. A high of 31.0 C was recorded for the night sample in August, and a low of 7.5 C for the night sample in February. Dissolved oxygen concentration was lowest for the night sample in February and the day sample in September with a measurement of 5.2 mg/l (Figure 6). The highest recorded was 9.1 mg/l for the day sample in February. Because of meter malfunction, air and water temperature and dissolved oxygen concentration were not taken in July. pH values are given in Figure 7. Values for pH were below 6 . 0 for the day and night samples in February and March and the night sample in April. The highest pH recorded was 6.7 for the June. July. and August sample~. pH values are not presented for September because of meter malfunction . Specific conductance is presented in Figure 8. The 3

Enclosure to NL-1     528 SNC Letter to U. S. and Wildlife Service, Dated November 10,2006 highest recorded was 138 microhms/cm for the             sample in September, and the lowest was 35 microhms/cm for the night              in March.
Part 3 Hatch river pumping data for January, 1980,            October, 1980, and river entrained for each month are nr*~~~nl~~,a in        5. In*
Table 5 presents the           monthly                     Altamaba Ri ver .. Percent river entrained                was                    for the months of June through October             . , 3.2, 3.5. and 2.9% *.
The lowest percent entrained was           occurring in March and measured in seven 26 m sections of the river and are and.10. At elevations 19.7 III and 21.S m,           depths were 0.5 III and 1.4 m,               It should be noted         the is on the north bank.             of the upper and lower layers section of the river nearest the Hatch intake indicated that 57' of the intake flow would be drawn from the upper layer, and 43% would be drawn from the lower layer. With one a maximum of 0.54          will be withdrawn from the             River.
represents 0.6% of the              at river elevation of 19.7 m. With two pumps operating per unit, a maximum of 4.8% of the flow would be diverted.
4

Enclosure to NL-13-1     SN C Letter to U. Fish and Wildlife Service, Dated November 10,2006 The State of Georgia                   criteria for water quality control                          oxygen concentration, water temperature, and pH (Georgia                   Protection Division, 1974).
Dissolved oxygen concentration for warm waters is a daily                    of S.O and no less than 4.0           Concen~rations were lowest, 5.2           , for the survey in February             day survey in September.
Water temperatures             state are not to exceed 32.2 C (90.0 Fl.
Temperatures                      did not            this limit with the highest, 31.0 C, recorded for                       survey.
range for the State of             ia 6.0 to 8.5. Values were below 6.0 for survey in February and           and the          survey for February, March,
              . The lowest recorded was 5.6 for the              survey in February and survey in March. S:tnce the samples were                              from our Bcharae and no industry is located upstream in                       of the plant, indicate a normal occurrence.
The range for             conductance for a diverse fish fauna in freshwater is between 150           microhms/cm. (Ellia et al. 1946). The highest recorded was 138                   the September night survey while the lowest was 35 .
microhms/cm           March night survey.
Plant Hatch river              data, the plant for        ,      , and data for         and 1976 assumes a constant The 1980 pumping data is actual records. The data in Table 5 shows that the of river discharge              is dependent on the number of intake and river discharge. An                in river discharge decreases
                           . This is best                  for the months of June through 1980. a drought year for the state of Georgia.
for the years 1974, collected weekly from 1974 through 6            the percent composition of differences in total number the          in were in abundant for the the years 1975, 5

Enclosure to NL-13-1      SNC       to U. S. Fish and Wildlife Service, Dated November 10, 2006 note in Table 6 is though the data are not
                  , it does indicate a fluctuation in                  composition for each family from one            to another. For some families, th1s is more pronounced, as in                    Catostomidae; while in the family Esocidae, the percent                     was          very low.                .
Monthly entrainment data for each taxa for 1975, 1976, and 1980 are in Table 7. The 1975 and 1976 data represents entrainment estimates for Unit 1. The 1980 data represents entrainment for Unit 1 and Unit 2. With the addition of the Unit 2 intake an increase in fish            and larvae entrainment is not be the case as            by the data. An increase in entrained eggs and larvae is not apparent for 1980 compared to 19.75 arid 1976.
The differences in numbers of fish eggs and larvae are due to differences in              abundance from year to year,                  activity upstream from               , river              , and time Summary It was noted in the Edwin I. Hatch Nuclear Plant Annual Environmental Surveillance Report No.3, January 1.          December 31. 1976, Power company, 1977) that densities of fish and fish eggs seasons in 1974, 1975. and 1976 generally fluctuated spawning intensity and                with river flow. The same conditions occurred in the 1979 and 19BO                  . Relative abundance of fish families varied             the five years of study, but the Catostomidae and                       the most               taxa each the total
                                                         . The samples than in Estimated                 of fish and fish eggs into Plant Edwin I. Hatch has remained .less than one percent of the total during five successive               periods with the exception the months of July,          , and              , 1980. The increase in estimated percent               was due to                 low river elevations resulting from the lack of rainfall. Based on               five years of estimated entrainment at the             does not constitute a
  . reduction in the fish yu~u.~aL 6

Enclosure to NL-13-1528 SNC Letter to U.      Fish and Wildlife .... en"',..'" Dated November 10, 2006 PART II IMPINGEMENT one sampling station located in the intake structure was used to collect the impingement samples              2A).
The study began in January, 1980, and ended in December, 1980, with samples taken monthly.
Samples were collected                   a wire basket with a 3/8 inch mesh size into the screen                                  11). Each sample lasted
          "-'~-"Ji '24 hours 'with the           of the           and July surveys. which 48 hours.                           in a lot formalin solution and taken             Environmental          Center in Decatur, Georgia, to be identified,                  weighted, and measured.
7

Enclosure to NL-13-1   SNC Letter to U. S. Fish and Wildlife Service,       1\1"""",.,."1-\",,,. 10, 2006 Part  ~
representing six identified to
                          ~~~~~~~;r~~8with                                         the
               ~~~~~;i.,
Part 2 taken at the beginning and erid of each                     are 12 and 13. The highest temperature                        was 15 and 17, 1980; while the lowest was 8.9          I) C on 16, 1980.
River elevations are                in Figures 14 and 15. The                  , 81.9 feet, was recorded on March 19, 1980; while the lowest, 63.7 feet, was recorded               16 and 17, 1980. Data                      14-15 are from computation of gage                                  for the 1980 at station 02225000                            U.S.
Data for November and December were not available of this report.
B

Enclosure to NL-13-1      SNC Letter to U.       Fish and Wildlife Service, Dated November 10, 2006 Five years, 1975, 1976, 1977, 1979, and 1980, of                        samples were collected at Plant Edwin I. Hatch. A total of 1~5                (Table 9) 22 species were collected. The highest number impinged, 61 fish, was while the lowest, 14 fish, was in 1980. The data indicates low                nnernen estimates per        and     year. The 1975                  are 1.2 fish per 438      year;                   are .4 fish per day and 146 per ear; are 1.1                and 401.5           year; 1979 estimates are 1.3 fish per day and 474.5                    1980                are 1.2 fish per day and 438 per year.
The hogchoker,                                   the most abundant and the only collected                                      species were collected only once the five years.
factors affecting impingement are: the and seasonal movements to deeper water, with breeding behavior. Other factors losses are: river elevation, intake velocities, and site location.
river levels resulted in a reduction in. intake velocities. In addition, the of water in the intake structure increases from the surface to the bottom       to the.intake           An accurate correlation between river elevation and the                            fish for the five years cannot be made because of the                                 impinged. The increase in velocity at the bottom of the                                to some                   why the of the fish                                                       dweller. The is                                               would not harbor game species. Low intake velocities and site factors resulting in low numbers of impinged fish.
SUTnmaX:X The               data for the                                                losses at Plant         I. Hatch are ex!trE~me,ly                                   impingement does not create a significant 9

Enclosure to NL-13-1528 SNC Letter to U. S. Fish and Wildlife Service, Dated November 10,2006 Ellis, M. M., B. A. Westfall, and M. D. Ellis. 1946. Determination of water quality. U.S. Department of Interior, Fish and Wildlife Service                        9. 122 pp.
Georgia Environmental Protection Division. 1974. Pages 701-731 in Rules and regulations for water quality control, chapter 291-3-6, revised June, 1974. Georgia 'Department ofNatuml Resources, Atlanta, Georgia.
   "_~_iB           Power Company. 1974. Edwin I. Hatch Nuclear Plant - Unit No.1, semiannual environmental surVCl1l811ce report No. ], period                   December 31, 1974. Georgia Power Company, Atlanta, Georgia
    "._~_~'h        Power Company. 1975. Edwin 1. Hatch Nuclear Plant -                    1, annual environmental y<;;. . . " ' "...... report No.2, January 1 - December 31, 1975. Georgia Power ComPany, Atlanta, Georgia.
Georgia Power Company. 1976. Edwin I. Hatch Nuclear Plant, annual environnlental surveillance report No.3, January I - December 31,1976.                         Power Company, Atlanta, Georgia.
Georgia Power Company. 1977. Edwin I. Hatch Nuclear Plant, annual environmental surveillance for calendar year 1977.                     Power Company, Atlanta, '-'''''J'l!IJ''''
Georgia Power Company. 1979.                        I. Hatch Nuclear Plant, annual envlronmental surveillance report-for calendar year 1979. Georgia Power Company, Atlanta, Georgia.
10

Enclosure to NL-1              SNC           to U.      Fish and Wildlife Service, Dated November 10,2006 Table 1'.          Scientific and common names of species of fish collected during the entrainment study.
scientific Name                                   Common Name Alo.... aeetivalia                           Blueback herring Aloes, sepidlssima                           American shad Dorosoma spp.                                Shad Clupeldae                                    Rerring and shad Esoll: spp.                                  Pickerel
            ..mericllnuB                          Redfin pickerel nuchaliB                                minnow' shiner coastal shiner Minnow Highfin ~.'rn,."'*k **r Spotted Silver redhorse Snail bU.Ulleli(l Brown .DUJ.J..,eal('
Channel Broole:, R" v....,n,,,.
Atlantic needletieh sunfillh Redbreaet Bunfish Largemouth hallll Crappie ,
Perea flav,es.:e"s                          Yellow Perch Percidae                                    Darter Trineetas msculatuB                         Rogchoker Unknown egg Unknown larvae 11

Enclosure to NL-13-1528                                   to U. S. Fish and Wildlife                  "'.:>nll"':>     Dated November 10, 2006 Tallie 2. s"",*. _offndMduall ~Iiltnelt mIlfllll.d!lV1Il'Idniglll._1ilt
        !he monlh. far ""y ""d ~ 0l\Il p."cent ~ of """" Ia"" 0l\Il """" flImlly.
Fob.           .M...""             ~.               May                Jun.              July              /lug.                1l0lll*
T_              ""of       %01    %01 Spedes                           Day       Nlghl Il..,.      Night   Day    NIgIII    Day     Nigh!      Dey      NIgIt    Dey      NIgh!    Oay       NIgh!    Oil)'         Nigh!   Day     NIgIt     Fiah       Egg    Family C!opeidee                                                                                                                                                                                                                      10.9 Aloe   ".!Mitis                                                                                                                                                                0         2       0.23
                     -Hl!IJ;tiIll!lml Egg                                                                     6 FI$h                                                   "
I      2                         28          2                                                                          II 10 34       IIMI 44 Dot!:!I!!mI "'"                                                                                                                                                                1         0       0.23
                    ~                                                                                                                                                                                         0       0.23
        &odd...                                                                                                                                                                                                                         U EmuI.iIz.                                      2       3                                                                                                                        2         3       1,13 Esox_                                                                                                                                                                           0                 0.23 Cjiprinlda.                                                                                                                                                                                                                       29
_1I'IulI~                                                                               30                                                                                      !       30        7.01
                    ~bIr.1II!-                                                                                                                                                                      0                 0.23 10
                    ~-
8                                                                  0                 2.26 5       &       80      llMS CyprinIdae                                                             26                II                 22 c.toslo<l1dd""                                                                                                                                                                                                                   29 1I                                   12                 M                            11        65      17.19
                    ~mIIf<<
Miadlmlml~                                                    "
8        14 12
                                                                                                                                         "                                                         8        15 I
5.2 0.45
                    ~~
12

to                3-1              to U. Fish and                  Dated November 1D, 1-             IcI;!lIM I!tlI!!tt<u tytaIuJyp nfl:ubtlJ.f IcI;I/IIM !!!I!!CIIII!f 12 5     1 2
f) 2 0
12 12 2
271 3.17 US M
               ~!Mbl!II                                                                                     0         0.23 ApIltodoc!OIId**                                                                                                                5.119 AplndpdsM' gy.vJUI                           22                                                  24    US
 ...herlnld**                                                                                                                     O.M I.IbI!1!!sIIw ~                                                    3                        0      3  O.M lIololllda.                                                                                                                      0.l1li StR1ot;}'nbrJlGtttw                                                                                    0.68 CMlrBrt:hIol**                                                                                                                   17.6 511        2   I!!I 15.:18 0     I   0.23
              ~SI!Irl!oI!ta                                                                                0     1   11.23
             ~                               5   3                                                        lIi    3   1.111 2.11 P<<qi      tlsy!s:!M                       2        .4                                                   2.49
             ~                                                                                            0          0.45
&hid..                                                                                                                           0.23 T_05"""""""'"                                                                               '1     0    0.23 Un_Egg                                           e                   6                                         12           56
~Flah                                                                                                           6    1.36          1.4 Totals                                  0   12  Z1    22   ao  14  100    II    64   4 30    0 9S   II 9 65   403    100   100 100.2&
13

.8

Enclosure to NL-13-1528                      to U. Fish and                           Dated November 10, Table J. Mean and      oflb.e Total    (mm) for Each           for*
Each Month Sampled Were             Were Species                         Feb,    March            April                         June        July      Aug.
Sept.
Alosa aestivalis                                             4.9 Alosa sapidissima                           6.6          . 10.2              11.9      20.2 (1.1-25.0)
Dorosoma spp.                                                3.5 4.6 Esox spp.                                  11.2 (11.2-21.0)
Esox americanus                                            45.0 nuchalis                                                      19.5 (is.0-2!
Notropis chalybaeus                                        37.0 petersoni                                                                     10.5         15.5 (IS.O-Cyprinidae                                                   8.6             19.3       5.1         4.8       5.0    6.6 (3.9-15.0)      . (7.1-24.0)              (3.9-5.3) (4.9-5.2) velifer                                          1.5              6.4        6.6         5.9       6.4    7.3 (6.1-8.0) 11.2              IU (8.1-15.0) 15

Enclosure to NL-13-1528 SNC Letter to U. S. Fish and Wildlife Service, Dated November 10,2006 Tabid. (Con\)
Species                   Feb.      March         April            May            Iune         Iuly      Aug.      Sept.
Moxostoma anisurum                                                  23.5 (21.0-26.0)
Ictalurus brunneus                                                   19.5 (17.0-21.0)
Ictalums nebulosus                                                                  19.6        16.1 (17.0-25:0) (15;0-17.0)
Ictalurus punctatus                                                                            24.0 (18.0-30.0)
Noturus gyrinus                                                                     13.0 Aphredoderus sayanus                          S.1             33.0 (3.5-27.0),
Labidesthes sicculus                                                                 4.7 (4.2-4.9)
Strongylura marina                                                       17.0        15.5 (13.0-IS.0)
Lepomis spp.                                            5.3               7.3         9.6        -13.0     6.9       15.0 (5.2-13.4)             (4.2-8'.3)
Lepomis auritus                                       27.0 Micropterus salmoides                                                                 6.3 Pomoxis spp.                       4.2 (3.8-5-3) 16

to NL-1    528      Letter to                                      November 10, 2006 Table 3. (Con't)
Species              Feb.      Ma.rch       April         May           June       July Aug.
sept.
Perea flavescens                 7.1         6.1          '1.4                               5.9 (6.9-7-3)   (5.6-7.0)    (6.7-8.8)
Percidae                                     6.2 Trinectes maculatus                                                     76.0 Unknown Fish         Not measured because all these Rne~1men   were o.amageo.
17

Enclosure to NL-13-1     SNC Letter to U. Fish and                           n".:>rnh.:>r 10, Table 4.                           MontnlY Densities for Each                   Estimated Number Found in the River in the Vicinity of the       the Percent of River Discharge                  and the Estimated Number Entrained for 1980.
Estimated Number                              Estimated Number Monthly Densities    of Eggs " Fish            Percent of          of Eggs   &
Fish Per 1000 m3       in the Vicinity           RiVer Discharge     Entrained by the Month            Family              of Water        of the Plant              Entrained           PlantEach Month February         NOSP"                    NOSP                    NOSP                  0.5 March                                                                                                        NOSP Clupe:\.dae               0.9                  84,609                  0.2                   177 1.0                  94,010                                        197 0.7                  65,807                                        138 3.3                313,053                                         657 4.1                381,680                                         801 Percidae                  0.6                 53,116                                         112 Unknown egg              1.5                      075                                        294 TOTAL                    12.1             1,     ,350                                     2,376 April            Clupeidae                1.8                 173,628                   0.2                   365 2.0                 192,910                                         405 0.3                  28,938                                          61 7.9                 762,034                                      1,600 1.8                 752,388                                      1,590 6.6               . 636,636                                      1,337 Centrarchidae             0.6                  57,876                                         122 percidae                  1 .. 8              173,628                                         365 Unknown egg               0.6                  57,876                                        122 TOTAL                    29.4              2,835,914                                       5,955 May             Clupeidae                10.5                 286,330                   0.8                2,293 13.0                 354.516                                      2,836 2.6                  70,903                                        567 Ictaluridae               3.5                  95,447                                        764 0.3                   8.i81                                          65 0.3                   8,181                                          65 Centrarchidae             0.3                   8.191                                          65 18

Enclosure to      3-1       Letter to U. S. Fish                       November 10, Table 4. (Con't)
Estimated  lJumh",.,..                 Estimated Number                                                                                           of Eggs & Fish Monthly Densities                                         of Eggs " Fish          Percent of Per 1000 m3    in the Vicinity           River Discharge Entrained by the Month                  Family           of Water       of the Plant              Entrained       Plant Each Month May (Con't)  Percidae                    1.0            21,210                    0.8             218 Unknown egg                 1.1            46,356                                    311 Unknown                     1.1            29,998                                    240 TOTAL                      34.3           935,662                                  1,485 June         Clupeidae                   1.8            45,086                    1.0             437 12.3           308,088                                  2,988 S.O           125,239                                  1,215 lctaluridae                 1.8            45,086                                    437 0.4            10,019                                     91 1.3            32,562                                    316 Belonidae                   0.9            22,543                                    219 centrarchidae               3.8            95,182                                    923 Adult            0.5            12,524                                    121 27.8           696,328                                  6,754 2.1            31,060                    1.5             478 July 3.6            53.246                                    820 2.1            31.060                                    478 Ictaluridae                                                                           91 Centrarchidae               0.4              5,916 0.4              5,916                                    91 Unknown                                                                            1,959 TOTAL                       8.6           127,198 85,847                    3.2            2121 August                                  11.5 155,271                                  4,922 20.S                                                       74 Unknown                     0.3             *2, 243,                                     7,718 TOTAL                      32.6 17,493                    3.5             616 September                                2.9 3,619                                   127 0.6 3,619                                   127 centrarchidae               0.6                                                      127 percidae                    0.6              3,619 28,350                                    99B TOTAL                       4.7
        .Indicates No       Found 19

Enclosure to            528           to         Fish and             sClr",...'c Dated                  10, Table 5. A1tamah River Monthl    e, Plant Hatch River PUmping Data, and the percent river flow entrained for each month for 1975. 1916, and 1980.
Year                                                          1916 lOuml'linn          ni.""h~",,,
Entrained IAltamaha River ni.'.. l. 1~....,,. Inllmninn Percent of River Discharge Entrained 9,433                            0.4%
10,461                            0.3%
13,558                            0.3%
8.450                            0.4%
10,810                            0.3%
9.375                            0.4%
5.450                           0.7%
20

Enclosure to NL-13-1528 SNC             to U. Fish and Wildlife Service, November 10, 2006 Table 6 Percent                   of Fish Taxa for 1974, 1975, 1976, 1979, and 1980 Fish Percent Composition Family                            lJilli               1979      1980 Aphredodelidae     2.1     2.98       1.11               5.89 Atherinldae* .                                        0.7 Belonidae                                           0.7 Catostomidae     61.75  12.38      56.18     17.8      22.9 Centrarchidae    5.27   21.85      14.46     23.2       17.6 Clupeidae     5.23   2.39       2.54      1.3       10.9 Cyprinidae   13.66  37.21      18.65     48.4        29 Esocidae     1.33   0.53       0.11      0.7        1.4 Ictaluridae   0.16  11.57    . 0.29       2.7        6.6 Percldae    B.38   4.21       4.44       6         2.9 Soleldae                                           0.2 Other Taxa     0.12   1.05       0.36 Unidentified                     .1.&sect;fi Total Fish Collected       2.562  1.712      2.793 . 151       442 Eggs 51.16  52.71      86.16                  44 Other Taxa                                                         56 Total      Collected        258    258      1,033                  25 21

Enclosure to NL-13-1528 SNC                  to U.            and Wildlife                     November 10, 2006 Table 7.                      of Monthly Entrainment 'Data for each Taxa for 1975, 1976, and 1980 for Plant Hatch Larvae Clupeldae                        Catostomidae                     Centrarchidae
                                                                                        .!ill        1976    1980 February             0              7        0           0              0       0        11           0        0 March                0            88       176      1978              580       0     216          562      405 April                 1          492       374      2860            6987    1582         82         362     123 May                31             47    2277       1342            1443     559     1426           346       65 June             202               0      426        140             109   1205     4153           219     932 July                               0        O*                       589     823-                  667       80 September'"
                           ....                 0" O*
    "Sampling was discontinued after the June survey in 1975
    "'Sampling was discontinued after the July survey In 1976
                                                              -                     0" 122 ..
                                                                                               -             ,4911 122 Cyprinidae                               Other                     Total Larvae 1975           1976     1980        1975            1976   1980      1975         1976    1980 Month February          433              0         0         60               0       0      504            7        0 March           5420            128       664       1422             228     259     9036         1585    1504 Apnl            1289           2445     1600        2775             810    1753     7022        11095    5432 May              455           346     2837        1019              248   1366     4273         2429    7104 June              258           749     2978        1206               52   1122     5959         1129    6663 July 185      479 ..
2714 ..
609*
                                                               ..          18    159 ..
78
* 122*
1958     1541 7703' 975 Egg                                            Total Clupeidae                              other Month'          1975          1976      1980       1975            1976    1980      1975         1976    1980 February          34            271         0         49              13       0        83         284         0 March              93         1258        199        137             228     297      230         1486      496 April             ,38         1518        408        201             358     122      239         1876      530 May              351          1018          0        438              66     370      789         1083      390 June               11              0        0           0               0       0     , 11            0        0 July August September"
                .           -           0        O*
O*
     "Sampling was discontinued after the June survey in 1975 12       0 0
12         0 0
     ""Sampling was discontinued after the July survey In 1976 22

Enclosure to NL-13-1      SNC Letter to U.             Fish and Wildlife Service, Dated November 10, 2006 and Numbers of Fish Collected in Monthly Surveys at Plant Edwin I. Hatch for 1.980.
Date               ",,,,**a':JLt",.. Collected*                  Length     (mm) weight. (grams) 1.-1.5-80 2-15-80              NOSP 3-18-80             Trinectes maculatus             (6)                  61            5.0 63            5.7 65            6.0 54            3.3 61            4.9 61            5.0 (1)              43              .8 4-15-80                                               (1)               816           11.3 5:'10-80                                                                115           17.0 107           15.5 1.07          14.0 6-17-80                                                               NOSP 7-15-80             Ictalurus                 (1) "'p'OlCJ,me'D Damaged Lepomis                    (ll                        55           2.7 8-19-80              Ictalurus punctatus (1)                            203           84.3 9-16-80                                                               NOSP 10-14-80                                                               NOSP 11-12-80                                                               NOSP 12-17-80                                                               NOSP
   *Number Collected in Parenthesis
   **Indicates No Species Collected 23

to      3-1              to u.        and Wildlife                       10, Table 9.                           and Numbers of Fish Collected in                  at I. Hatch for 1975, 1976, 1977, 1979, and 1980.
Common Name           1975   1976     1977     1979 1980    Totals Amia calva                 Bowfin                                   3             3       6 Alosa                                                               1                     1
:2                                    :2 3                             3 1                                     1 nuchalia               minnow         1               1                     2 callisema.                 shiner        1                                     1 hudsonius                   shiner                        1                     1 Notronis spp.                                        1                                     1 brunneus       Snail bullhead                           1                     1 ictalurus nebulosus               bullhead          1                                     1 Ictalurus                        bullhead.                          1                     1 Ictalurua punctatus        Channel catfish          1      1        1            1        4 Ictalurus spp              Catfish                                                        1 sayanus     Pirate                  2                             1        3 Acantharchus                Mud                             :2       1                     3 Centrarchus macropterus     Flier                   3                1       1             5 Lepomis auritus             Redbreast sunfish       1       1        2            1        5 Warmouth                                15       1            16 4                        1            5 punct:at:                  sunfish                        2                     2 1                     1 Pomoxis n1gromacuiacus                                     1        1                     2 Percina                                                             1        1    2 Trinectes maculatus Totals 25

Enclosure to NL-13-1528 SNC Letter to U. S. Fish and Wildlife Service, Dated November 10, 2006
                             "'l     .*..
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lAo Plant Edwin I Hatch Plant Layout 00 N
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27

Enclosure to   528 to U. Fish and 10, I
     "-l co
             <l' COOLDIG .flATtK AND PLANT SERVICE SYS!!'H FOil UNIT 2 FIGIllUi: 2

SOUTH llANK                                   NORTH lIANlI:
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GIORGIA. POW '1l COMPANY LOCATION OF STAl'lONS ON co N
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Enclosure to NL-13-1528 SNC Letter to U. S. Fish and Wildlife Service, Dated November 10, 2006 DAY NIGHT -
34 32 S
30 28 26 24
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* METER MALFUNCTION 10 8
6 13  18      16        20  17    14     11           17 F   Ii     A          M  J     J        A          .5 GEORGIA               POWER COMPANY AUt TEMPERATURES FOR THE DAY AND NICBT ENTRAINMENT SURVEYS <:IN THE ALTAMAHA RIVER AT PLANT EWIN I. HATCH n.OM PEllRUARY. 1980 SEPTEMBER. 1980 FIGURE 4 29 30

Enclosure     NL-13-1    SNC      to U.       Fish and Wildlife Service, Dated November 10, 2006 DAY NIGHT --
32 30 28
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                 'F   M   A  M      J      J      A       S MONTH GEORGIA POWER COMPANY RATER n::HPElIATlJ!!.ES Rill. TIlE DAY JiXl) tUGBT ENTRAIl'IMENT SURVEYS ON TIm Al.:rAMAHA Rl:VE:R AT PLANT EDWIN I. BATCH FROM FE1IJttlAllY. 1980 SEPTEMBER, 1980                              ' .
301L-______________________
I                                        l'I GU1U!: 5  ~
31

to NL-13-1528 SNC             to               and Wildlife Service,                 November 10, 2006 DAY .
lUGBT __ _
10
* Ml!:TER MALFUNCTION 9
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I        I 13   18  16      20       17     lit    II     17 F   M   A        :If      J      .J     A      s MONTH GEORGIA POWE R COMPANY DISSOLVED OXYGEN CONCENTRATIONS FOR TBE DAY AND NIGHT ENTRAINMEl'lT SURVEYS ON 'l.1!E ALTAlWIA RIVER AT PLANT ED1J1N 1. RATcH FROM FEBRUARY. 1980 - SEP'l'EHBn, -1980 llGll'RE 6 31 32

Enclosure NL-1  528 SNC Letter to U.      and Wildlife Service,             November 10, 2006 DAY NIGHT --
13  18   16  20     17  14  11    17 F  M    A   M       J   J< A      S COMPANY FlGtlJl.E 7 32 33

Enclosure to NL-13-1528 SNC Letter to U. Fish and Wildlife Service, Dated November 10, 2006 13   18  16   20     17    14     11     17 F   If   A    H      J     J      A      S GEORGIA            POWER COMPANX SPECIFIC CONDUCTANCE FOR Tl;IE DAY AND NIGlIT ENTIlAINKENT SURVEYS OR nm Al:rAHABA nVEa AT PLANT I!.llWIN I. BATca noM FlmRtJAllY. 1980 -
5EPTEMlIEll. 1980                        .
FIGURE 8 13 34

to NL-13-1528 to U. S. Fish and              Dated            10, South                           IIorth hnk                             Bank Illtake
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to NL-13-1   to U.               and               Dated            10, 2006 South                               Horth Bank                                Bank r - 26111 Int.1ce
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22 21 S       20
     ~M      19
      ~
18 17
      ~      16
      ~. 15 14 13 12 11 10
               !I 8
7 6
J F M A M J    J A SON D
* MONTH GEORGIA POWER COMPANY loIATER TEMPERATURES FOR l'RE Al.TAMAJIA R1.VER AT THE lIEGINNING OF EACH lHP1NGl!XENT S\JR'\i'EY AT PLAN'l' ED'II'IN 1. BATCH noM JAmJAllY. 1980 -
DECE:I'lBER. 1980 37 38

Enclosure to NL-1    528 SNC Letter to U. Fish and Wildlife Service, Dated November 10, 2006 30 29 28 27 26 2S 24.
23 22 0:.,:)
21 20
   !a      19 18 17
     !:i   16
     ~     15 9
8 7
Ii J F M A M J J A S    I)  N D GEORGIA POWER COMPANY WATERTl** ~OO*I~'ruR1;S FeR THE ALTAHABA Rl.VER AT THE END OF           lHPllIliEMENT SURVEY AT.
PLANT :Et1InN I. BATca: FROM JA'NUBY. 1980 -
DECEXllER*. 1980                        .
                                        ~L-_________________________________~
FIGURE 13 39

Enclosure to NL-13-1   SNC Letter to U. Fish and Wildlife Service,               November 10, 2006 82 In 80 79 78 71
   ,.... 76
    ~     75
    ""    74 IZ:
0
    .... 73
    ~     72 i:1
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                                         ~EORGIA           POWER COMPANJ RIVER ELEVATION :FOR TIlE ALTAMABA RIVEI AT TIlE BEGINNING OJ' EACiI llIPINGDIEN'r SURV1!Y AT PLANT EDWIN   t. BATCH FROM JANilARY. 1980 -
DECEMBElI.. 1980
                                                                         'PlCURE 14 39 40*

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                                          ~     !.ND OF l:ACB lHPINGEMENTStrRVEY AT PLiI.NT EIJI'vIIN I. 'IIA'l'CB FROM JANtlARY. 1980 -
DECEMlln. 1980 40

Enclosure to NL-13-1528 SNC Letter to U. S. Fish and Wildlife Service, Dated November 10,2006 PLANT EDWIN l. HATCH UNITS 1 AND 2 THERMAL PLUME MODEL VERIFICATION GEORGIA POWER COMPANY ENVIRONMENTAL AFFAIRS CENTER M. C. NICHOLS AND S. D. HOLDBR MARCH, 1981

Enclosure to NL-1     528 SNC to U. S. and Wildlife Service,       November 10, 2006 TABLE OF CONTENTS Page conclusions                                                 iv Introduction                                                 1 Materials and Methods Results                                                      3
                                                               .4 4
References                                                   6 OCR RelJl:odu(:t                                              n/.22/99 i

Enclosure to NL-1   528 SNC Letter to U.        and Wildlife Service, Dated November 10,2006 LIST OF TABLES L.             Batch Nuclear Plant NPDES Temperature Monitoring During 1980.                                        7
: 2. Edwin 1. Hatch Nuclear Plant           Plume Surveys.           9
: 3. .             of Observed Plume          and Surface Areas with Tbose Predicted          Carter Three Dimensional Buoyant Plume                                       10 OCR Reproduction                                                      ll/22/99

Enclosure to NL-13-1528 SNC        to U. Fish and Wildlife Service,        November 10, 2006 LIST OF FIGURES
: 1. Plant           Water and Plant Service Water                     11
: 2. River Discharge Structure and Mixing Box.                         12
: 3. Altamaha River Thermal Plum6 Transects.                           13
: 4. Altamaha River Thermal Plume Survey for June 19,1980 (9:25) .                                                            14 S. Altamaha River Thermal Plume Survey for August 7, 1980 (9:30).                                                         15
: 6. Altamaha River Thermal Plume Survey for August 7, 1980 (17:30).                                                       16
: 7. Altamaha River Thermal Plume Survey for August 11, 1980 (16: 10)
* 17
: 8. Altamaha River Thermal Plume Survey for August 12, 1980 (12: 02).                                                      18 OCR Reproduction                                                      11/22/99 iii

Enclosure to NL-13-1     SNC Letter to U. Fish    Wildlife        Dated November 10, 2006
: 1. During 1980, water temperatures in the mixing zone were within the limits the NPDES         (90 OF maximum or 5 DF rise above ambient river of observed plumes with predictions of the Carter three buoyant plume model demonstrates that this model is a reasonable approximation of the Edwin I. Batch Nuclear Plant' thermal plume.
: 3. The results of this investigation fulfill the requirements set forth in NPDES Permit No. GA-0004120, Part I, 8-4.
OCR Reproduction                                                   Uj22/99 iv

Enclosure to NL-13-1528 SNC Letter to U. S. Fish and Wildlife Service, Dated November 10, 2006 Introduction Water temperatures were measured at Plant Hatch on a weekly basis as required by the National pollution Discharge Elimination System (NPDES) Permit No. GA-0004120. In addition, a study to verify the thennal plwne predictive model for two-unit operation was completed.                          .
Plant Hatch, owned jointly by Oglethorpe Power Corporation (30.0%), Municipal Electric Authority of Georgia (17.7%), City of Dalton (2.2%), and Georgia Power Company (50.1 %) is located approximately 11 miles north of Baxley in Appling County, Georgia. The site is 'on the south bank of the Altamaba River, east of U.S. Highway 1. The plant consists of two nuclear units. Unit 1 has a generating capacity*
of 810 megawatts, while Unit 2 has a generating capacity of 820 megawatts. Unit 1 and 2 went into commercial operation on December 3], ]975, and September 5,1979, respectively..
A cooling water flow diagriun for Plant Hatch, Unit 2 is presented in Figure 1. The cooling water syStem for Unit 1 is identical to the system for Unit 2. The mixing box for the rivet discharge structure (Figure 2) receives cooling tower blowdown, demineralizer waste, cooling tower overflow, and excess service water from both Unit 1 and Unit 2. From the mixing box, two 42-inch lines ron down to the river and extend approximately 120 feet out from shore. The point discharge is approximately 1,260 feet down river from the intake structure and approximately 4 feet below the surface when the river is at its lowest level.
OCR reproduction                                                                          11/22/99 1

Enclosure to NL-13-1528 SNC Letter to U. S. Fish and Wildlife Service, Dated November 10, 2006 In accordance with the NPDES permit,                    were measured on a weekly basis at the            structure or at a             point upstream of the intake, at the mixing chamber, and at the downstream edge of the mixing zone (approximately 500 feet downstream of the discharge point). A                 listing of the temperatures is given in Table 1. The maximum observed between intake and mixing zone temperatures was 3.2 of, which occurred during one sampling              All temperatures measured are within the limite required by the NPDES             (90 of maximum or 5 of rise above ambient).
The NPDES permit also requires ape to field              and/or fine tune the thermal plume model beginning not          than six months after commercial                of Unit 2. Twelve thermal plume monitoring surveys were conducted            ].980.         each of the
* temperature measurements were taken at              of 1 ft., 3 5 f t . All measurements were made from a           moving along preselected            in the river (Figure 3) using a                  probe and continuous recorder. Monitoring equipment was calibrated in                     before each         and rechecked in the field before and after .each survey.           data             in addition to the                measurements, are listed in Table 2. No data were collected during              weather.
OCR relprexluct:i                                                     n/22/99 2

to NL-13-1     SNC Letter to U. S. and Wildlife _CnillI'C        November 10, The temperature data collected for five of the twelve surveys are shoWn on' 4           8. These figures show the thermal           exi         on each of survey           and the corresponding computer                               largest rise above ambient river temperatures was 1 . 5                   1-foot transects taken on 6-19-80. This plume did not extend                   250 feet downstream of the discharge. The maximum rise above ambient             temperature on the 1-foot transects for the remaining surveys was 0.5 OF. The                              in water temperature for the 3-feet and 5-feet transects were 0.5 OF or les9 for all surveys.
In addition to the five surveys shown in inconclusive data COin~'u<;~'=Y with only one cooling tower and 10-31-80). No thermal plumes were              in .the river on three (6-18-80, 8-6-80, and 8-13-80). Model predictions suggest plumes which would not extend downstream.             to be transects. The data from the                                 , 16:15 EnST) shows the effects of solar .                                            the barge During this survey. the ambient                      was 97 of. Because     of water elevation, 64.7 feet, the           areas near the sandbar were extreme solar radiation. Solar heating resulted in a secondary which was entrained into the downstream               of the discharge secondary plume was evident as a                           in water temperature to 90.0 OF, approximately 800 feet below the discharge. The ambient water temperature and discharge                     were 88.S OF and 89.1 OF,
                 . This secondary plume biased      data collected, and no model predictions could be made. The preceding seven surveys are not presented in figures.
OCR                                                                       11/22/99 3

Enclosure to NL-13-1         SNC Letterto U.      Fish and Wildlife Service, Dated November 10, 2006 The results shown in the 1976 annual                   demonstrate that a suitable thermal plume model, the Carter                            thermal plume model, ,has been field tested and verified for one-unit operation (Carter et al .* 1973.
Edinger et al .* 1974, and Georgia Power Company, 1977). As required by the NPDES
* this model must also be verified for two-unit of observed and               surface plumes for each of the 1980 in            through 8. A dimensionless constant has the model      order to obtain the best fit between observed dimensions. The constant used for the 1980 thermal plume 4 to 40 with an average value of 18-9. This constant where dilution of excess heat             and is affected by the volume. The largest value             constant (C -40) lowest AT and the                        volume (0.9 OF and 98.0
                          . Lower discharge                        AT values required for the ,constant (ranging from 12 to 20). The lowest value of the constant (C = 4) occurred with a low discharge volume and an elevated AT (34.5 cfs and 4.5 0p,                        If the survey with the lowest AT and the highest discharge volume is                    the constants for the surveys range from 4 to 20.
The overall dimensions of the observed and                     plumes are summarized for each survey in Table 3. The observed and                    lengths are tabulated to the nearest 50 feet, which is the accuracy to which the plumes could be' from the data. Table 3 shows a' reasonable comparison between the and predicted lengths, considering that excess temperature isotherms no greater than 1.5 OF could be identified from the field data. Similar results are shown for the              surface areas. The higher surface areas of the observed plumes are                   to increased surface spreading caused by the sandbar. These results are within the                   to be expected from a simple model for low excess temperature The plume model verification was conducted under conditions compiar'ab    to average summer conditions. The estimated fully mixed excess temperature for average summer conditions (average river flow of 3000 cfs and AT .. 4.7 OF) is 0.09 OF (Georgia Power                    1975) .
During the 19BO thermal plume               , the period of lowest           flow and                       tower heat      ection occurred during the survey on 8                          (Table 2). The river discharge on 8-7-80 was 0 3220                    mixed excess temperature        17;30 EDST was 0.05 F with                     discharge of 34 cfs and        of 4.5 of. This demonstrates that                 towers are operating as predicted.
calibration of the Carter model to the 1980 field data for di.sc:halrqre from two units             constants ranging from 4 to 20 with an average OCR                                                                        11/22/99 4

Enclosure to NL-13-1528 SNC Letter to U. S. Fish and Wildlife Service, Dated November 10, 2006 value of 13. Model predictions for a AT value less than 1&deg;F and cooling tower discharge of 98 cts required a constant of 40 and is not considered typical of normal conditions. Results reported for Unit 1 operation during 1976 ' yielded constants ranging from Sto 16 with an average value of 10 (Georgia Power Company, 1977). These comparisons demonstrate that the Carter model is a reasonable approximation for the Hatch thermal plume. Thus, a suitable thermal plume model has been verified and calibrated with field surveys as required in the NPDES permit.
OCR reproduction                                                     11/22/99 5

Enclosure to        528 SNC       to U. Fish and Wildlife Service, Dated November 10, References Carter, H. H., E. W. Schiemer, and R. Regier. 1973. -The             surface to an ambient flow of various depths. Technical            Bl.
Bay Institute, Johns Hopkins University. Baltimore,       . 64 Edinger, J. E. , D. K. Brady and J. C. Geyer~ 1974. Heat exchange and transport in the environment. Electric power Research Institute RE-49 Report No. 14. Palo Alto, Ca.
1975. Hatch Nuclear Plant Unit No.2 Environmental Stage. Volume 1,        5.1-2. Georgia Power Company, 1977. Edwin I. Hatch Nuclear Plant Annual Environmental Calendar Year 1976, Section 1.2. Georgia Power Company, Atlanta, Ga.
OCR reproduction                                                     11/22/99 6

to NL-13-1528 SNC       to U. Fish and Wildlife Service, Dated November 10, 2006 TABLE 1. EDWIN I. HATCH NUCLEAR PLANT NPDESTEMPERATURE MONITOR!NG DURING 1980 Mixing Chamber Unit I           Unit II         Mixing Intake          Discharge Discharge                Zone 01/02/80            52.0             52.0          79.0                52.0        0.0 01/10/aO            48.0             71.0          75.0                48.0        0.0 01/16/aO            51. 0            71.0          79.0                51.0        0.0 01/23/80            52.0             71.0          75.0                52.0        0.0 01/30/80            50.0             67.0          52.0                50.0        0.0 02/07/80            44 .0            63.5          64.0                44.0        0.0 02/19/80            46.5             6S.0          72.0                46.S        0.0
.02/20/80            48.0             66.0          58.0                48.0        0.0 02/28/80            51.5             74.0          76.0                51.5        0.0 03/05/S0            48.0             76.8          53.4                4S.0        0.0 03/12/80            54.0             75.0          58.0                54.0        0.0 03/19/S0            55.0             63.0          60.0                55.0        0.0 03/26/80            59.0             69.0          63.0                59.0        0.0 04/02/80            62.0             70.0        . 65.0                62.0        0.0 04/09/80            62.0             73.0          66.0                62.0        0.0 04/16/S0            64.0             67.0          64.0                64.0        0.0 04/25/80            66.0             80.0          70.0                66.0        0.0 04/30/S0            67.0             84.0          84.0'               67.0        0.0 05/07/S0            69.0             88.0          72.0                69.0        0.0 OS/14/S0            75.0             70.0          78.0                75.0        0.0 OS/22/80            77.0             9J..0         78.0                77.0        0.0 OS/28/S0                             7S.0          87.0 06/05/80            76.0             79.0          78.0                76.0        0.0 06/13/80            79.3             79.0          78.0                79.3        0.0 06/18/S0            79.2             74.0          88.0                79.2        0.0 06/25/80            81.0             90.0          90.0                81.0 07/02/80 .                                                                         0.0 79.0            80.0                               79.0        0.0 07/09/80            84.0             83.0          89.0                84.0        0.0 07/16/80            86.0             90.0          90.0                88.0        2.0 07/23/80            84.0             79.0          94.0                84.0        0.0 07/31/80            85.0             90.0                              86.0        1.0 08/06/80            86.0            86.0,          82.0                86.0        0.0 08/13/80            85.0            78.0           88.0                85.0        0.0 08/20/80           85.0             95.0           90.0                85.0        0.0 08/28/80                            90.0           86.0 09/03/80           84.2              93.2          92.3                84.2        0.0 09/10/S0           S1.0             89.0           76.0                82~0 09/17/S0                                                                           1. O.
83.0             86.0           85.0                S4.0 09/24/80                                                                           1.0 82.0             92.0           92.0                83.0 10/01/80                                                                           1.0 70.2             S2.9           79.5                73.4 10/08/80                                                                           3.2 67.8             82.6           74 B                6S.4 10/1S/S0                                                                           0.6 66.0             67.0           79.0                66.0        0.0 10/22/S0           67.8             82.6           SO.2                6S.2        0.4 OCR reproduction 11/22/99 7

Enclosure to NL-13-1528 SNC Letter to U. S. Fish and Wildlife Service, Dated November 10, 2006 TABLE 1 (Can't. )
Mixing Chamber Unit I       Unit I I          Mixing Intake            Discharge Discharge            Zone Date             Temp. (OF)        Tenw. (OF) Temp. (OF)          Temp. (OF)    b.T 10/29/80            62.8            82.6         84.4              64.9         2.1 11/05/80            62.4            73,-8        67.1              63.5         1.1 11/12/80            58.5            73.0         63.3              59.7         1.2 ll/19/80            57.0            71.1         59.5              57.0         0.0 ll/26/80            54.5            70.0         58.5              56.8         2.3 12/03/80            53.6            58.6         56.3              53.6         0.0 12/10/80            55.4            76.8         59.9              55.6         0.2 12/17/80            51.3            69.4         54.1              50.5        -0.8 12/23/80            48.4            68.0         52.0              47.1        -1.3
  ""Monitor out of service for repairs.
OCR reproduction                                                      11/22/99 8

to NL-13-1528                 to        Fish and                 Dated November 10, TABLE 2. EDWIN I. HATCH NUCLEAR PLANT THERMAL PLUME SURVEYS Megawatts           River       River       River     Discharge  Discharge  Discharge River Thermal          Elevation                Velocity   Volume               Temperature Temperature Date                              (ft)       (efs)      (ft/a)       (efs)     (ft/s)       (OF)    (OF) 06-1S-S0 1       '(0  2421          66.2       4S70         1.40       71.3        3.71      87.1       83.0 (14 :30) 06-19-S0      2010    2399          66.0       4720         1.25       75.7        3.98      88.3       91.3 (9: 251 08-06-S0'      1731    2397          65.0       3220         1.64       64.6        3.36      S6.0       89.2 (15:10) 08-07-80      2061    2389          65.0       3220         1.31       98.0        5.09      8S.0       87.1 (9:30) 08-07-80      2247    2383          65.0       3220         1.64       34.5       1.79       93.9       89._4 (17:30)                                                                                    1 08-08-80'      2348    2320         .65.0       3220         1. 64      35.6       3.71       93.9       86.9 (10: 15) 08-11-80      2403    2400         64.7        2890         1.31       33.4       1.74       88.0       86.4 (16:10) 08-12-80      2415    2419         64.7        2890         1,48       32.3       1.68       89.1       87.4 (12:02) 08-12-80'       2405   2392          64.7        2890         1.31       36.8       1..91      89.1       88.5 (16:15) 08-13-80 1       150   2409          64.7        2890         1.31       70.8       3.68       88.0       87.1 (10:45) 10-30-80 3      1951   2380          64.6        2840         0.98       40.1       2.08       81.0       65.5 (14:00) 10-31-80 3      1903   2400          64.6        2840         0.98       39.0       2.03       74.5     '63 5 (10:10)
I   No plume detected.
2   Discharge temperature lesa than.river temperature.
3   Discharge from Unit I            towers 4   Thermal plume affected by           heating.
OCR reproduction                                                      11/22/99 9

Enclosure to NL-13-1528 SNC Letter to U. S. Fish and Wildlife Service, Dated November 10, 2006 TABLE 3. COMPARISON OF OBSERVED PLUME LENGTHS AND SURFACE AREAS WITH THOSE PREDICTED BY THE CARTER TIIREE-DIMENSIONAL BOUYANT PLUME MODEL Survey                          Contour                                          Length (ft) Surface Area (ft 2
          ~                Constant          (OF)          Observed     Predicted        observed         Predicted 06-19-80                             17            1.0             400           400              6.7x 1041.0x 10' (9:25)                                                                                                             4 0.5           1000+           1250             14.8 x 1041.4 x 10 08-07-80                             40            0:5             300           300              2.4 x 104U.Sx 10' (9:30) 08-07-80                             4             0:5             250           250              0.7 x 10 40.4 x 10' (17:30) 08-11-80                             20            0.5            200            200              0.6 x 10 40.4 x 10' (16:10) 08-12-80                             Ii            0.3            250            250              1.0 x 1040.2x 10' (12:02)
OCR reproduction                                                         11/22/99 11

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to NL~13~1528 SNC Letter to U. S. Fish and Wildlife <;':onll',..'" Dated November 10,2006 LAW LAiVGIBB Group FRESHWATER MUSSEL SURVEY ALTAMAHA RIVER APPLING AND TOOMBS COUNTIES GEORGIA Prepared for:
GEORGIA POWER COMPANY Smyrna, December 2, 1998

Enclosure to NL-13-1528 SNC Letter to U. S. Fish and Wildlife Service, Dated l\Iovember 10,2006 I
I I                                FRESHWATER MUSSEL SURVEY I                                          ALTAMAHA RIVER APPLING AND TOOMBS COUNTIES, GEORGIA I
I I                                                   Prepared for:
GEORGIA POWER COMPANY I
I                                                   Prepared by:
Law Engineering and Environmental Services, Inc.
I                                           112 TownPark Drive Kennesaw, Georgia 30144 I                                                December 2,1998 I                                   LAW Project No. 12000-8-0178 I
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                                      ' _ ' '' ' _ '  . ,. - _ _  ._ 0_ ._ " _ _ _

Enclosure to NL-13-1528 SNC Letter to U. S. Fish and Wildlife Service, Dated November 10, 2006 A/lamaiuJ River Mussel Survey                                                                                                December 2. 1998 LAW Projecl 12000-8-0178 TABLE OF CONTENTS I
UST OF TABLES ................................................................................................................................. iii I        LIST OF FIGlJRES ...................... ~ ........................................................................................................... iv
: 1. 0 INTRODUCTION ................................. ~ ...................~ .................:..................................*......... 1-1 I                   

==1.1 BACKGROUND==
 ...............................................................,............................................... 1-1 1.2 PURPOSE ............................................................ ~ ............................................................. 1-1 I        2. 0 METHODS ............................................................................................................................. 2-1 3.0 RESULTS ............................................ ;.................................................................................. 3*1 I                   3.1 SPECIES COMPOSmON AND RELATIVE ABUNDANCE ..................................... 3-1 3.2 ABUNDANCE ........................................................................................................ ~ ......... 3-2
                   . 3.3 SPATIAL DISTRIBlJI10N ............................................................................................. 3-2 I.       4.0 

==SUMMARY==
 ............................................................................................................................ 4-1
: 5. 0 REFERENCES .................................................. :..................................................................... 5-1 I        APPENDICES
*1                   A B
FIELD DATA RECORDS ALTAMAHA RIVER FRESHWATER MUSSEL COLLECTIONS 1993 AND 1998 I
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 .------, -- ~~~-- --                 . - .

Enclos,ure to NL-13-1528 SNC Letter to U. S. Fish and Wildlife Service, Dated November 10, 2006 Alramaha Rivtr Mussel Survey                                                           DeCem~r  2. 1998 I       LA W Pro}tcr 12(){)()..8-()/78 I                Table usr OF TABLES Freshwater mussels potentially occurring in the Altamaha River near Plant Hatch 2            Swnmary of freshwater mussels. collected from the Altamaha River near Plant Hatch, September 25-26, 1998 I                3            Relative abundance of mussels in the Altamaha River in the vicinity Plant Hatch, 1968, 1993 and 1998 I                4            Sumri:lary of freshwater rilUssels collected from the Altamaha River near Plant Hatch, July 13~15, 1993                        .
I                5            Comparison of freshwater mussels collected from the Altamaha River upstream and downstream of U.S. Highway 1 bridge, September 25-26, 1998 I                6            Comparison of freshwater mussels collected from the Altamaha River upstream and downstream of U.S. Highway 1 bridge, July 13-15, 1993 7            Mussel sampling sites in the Altamaha River near Plant Hatch, Toombs and Appling I                             Counties, Georgia, September 25-26, 1998 I
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           -- _._--_.-_.__ .-                   . .-  - . ... --~~~.

Enclosure to NL-13-1528 SNC Letter to U. S. Fish and Wildlife Service, Dated November 10, 2006 AitlJlrUlira Riwr MlISSlli SutWy I       LAWProject 12~/78 December 2, J998 I                                                      lJSTOFF1GURES Figure I
Site Location Map.
I*                  2         Sampling Location Map 3         Comparison of the CPE for six mussel species collected in 1993 and 1998 I                   4         Spatial distribution of live mussels by river mile, September 25-26, 1998 I
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Enclos,ure to NL-13-1528 SNC Letter to U. S. Fish and Wildlife Service, Dated November 10, 2006 AltamaJra Rillrr Mussel S~                                                                   December 2. 1998 LAW Project 12000-8-0178

==1.0 INTRODUCTION==

==1.1 BACKGROUND==

Law Engineering and Environmental Services, Inc. (LA W) conducted a freshwater mussel survey for Georgia Power Company to meet license renewal requirements for Plant Hatch. Plant Hatch is .
operated by Southern Nuclear Operating Company (SNC) under a license issued by the NuClear Regulatory Commission (NRC).             The NRC, under 10 CFR 51.53(c)(3)(ii)(E), requires that applicants assess the potential impact of continued operation of nuclear power plants to threatened '
or endangered species.
Plant Hatch is 10catediUong the Altamaha River in Appling County, near Baxley, Georgia. This rep~rt summarizes findings* of a September 25-26, 1998 survey tei record the occurrence, distribution and relative abundance of freshwater mussels in a l2-mile reach of the Altamaha River.
1.2 ' PURPOSE I          The purpose of the survey was to establish the occurrence of freshwater mussels in the vicinity of I          Plant Hatch that are classified by the U.S. Fish and Wildlife Service (USFWS) and/or the Georgia' Deparnnent of Natural Resources (GDNR) as endangered or threatened.                    Review of databases I*         maintained by the GDNR (1996 version) and the USFWS (1997 version) indicated that mussel species with protected status (i.e., State or Federal endangered or threatened) are not known to occur I          in the vicinity of Plant Hatch. Six freshwater mussel species were listed in the GDNR and USFWS databases for the study area in Appling and Toombs counties (Table I). Three species, Alasimidonla I          arcula (Altamaha arc-mussel), Elliptio shepardiana (Altamaha lance), and Elliptio spinosa (Georgia spiny mussel), are listed as "Species ofConcem", a category that replaces the C2candidate category I          for species that are being evaluated by the USFWS to determine populations trends and threats.
I          The USFWS database included three additional mussel species that are endemic to the Altamaha River system, but do not have protected status.                 Those species are Elliptio dariensis (Georgia I
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------...,---~.--------. -.-.-                         . ... . ... ... - - . ~~-----

Enclosure to NL-13-1528 SNC Letter to U. S. Fish and Wildlife Service, Dated November 10,2006 AltafMlw River Mussel Survey                                                         December 2. J998 LAW Project 12000-8-0J78 elephant-ear), Elliptio hopetonensis (Altamaha slabshell) and LampsiliS dolabraejormiS (Altamaha pocketbook).
The "global" and state ranks for each ofthe six species are given in Table 1. These ranks indicate the relative rnrity of species based on occurrence records. The lower the rank, the fewer the reported Occurrences. The six mussel species listed above hay-e State and global ranks that range from critically imperiled (SIIG 1) for E. spinosa to rare or uncommon (S3/G3) for E. hopetonensis and E.
dariensis.
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       -,-- - '- ---- -- - -- -                 ------- . ~--- ----
                                                                                                 ---- --- ~ ------

Enclos,ure to NL-13-1528 SNC Letter to U. S. Fish and Wildlife Service, Dated November 10, 2006 AJlanuziIa Riwr MlISSel Sllrwy                                                              December 2. J998 I         LA WProject J2()()()..8-OJ 78 2.0 MEmODS t
I         A field survey for freshwater mussels was conducted September 25-26, 1998 over an approximate 12-mile reach of the Altamaha River from river mile (RM) 122.0 upstream of Plant Hatch downstream to RM 110.0 (Figures 2a and 2b). Plant Hatch is located at RM 116. Sampling effort .
targeted mussel habitats and areas where mussels have !:>een collected in the past. A total of 23 sites were sampled including sites sampled in 1968 by Sickel (1969) and sites sampled in July 1993 by Dr. Eugene Keferl, of Coastal Georgia Community College, Brunswick, Georgia (Appendix B). Dr. Keferl served as a consultant for the September 1998 mussel survey and I         participated in the field survey.
I         Few new sites were surveyed because moderate water levels prevented sampling some steep banks and submerged sand bars. River stage increased slightly from 5.15 to 5.23 feet during the survey I
 ,         based on provisional data from the U.S. Geological Survey (USGS) gage at Baxley (No.
02225000). Water levels during the 1998 survey were approximately 1.5 feet higher than were recorded during the July 1993 survey and were over four feet higher than water levels recorded for the August 1968 survey (Sickel, 1969).
I Mussels were located by hand picking and raking. Sampled habitats included the head and tailend I          of sand bars; backwaters at the downstream end of sand bars; shaded banks; steep banks downstream .of sloughs; mouths of sloughs and swamps; ponded areas at the tailend of sand bars; :
*I*~
along stable banks with root wads; and along sandy shorelines. Notes regarding channel/bank conditions, substrate type, water depth and relative current conditions were recorded on Field Data I         Record forms (Appendix A)..
I          Sampling effort was recorded as total search time in hours to allow reporting of relative mussel abundance as the number collected per unit of effort (CPE reported as the number of mussels I          collected per hour). Four crew members participated in the surveys conducted September 25, 1998 and three crew members participated September 26, 1998. Search time ranged from 0.75 I         hours to two hours per location and totaled approximately 29 hours for the two-day survey.
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                   ~-~-'---              ..--' - ------- ~.         .~-~--        ...- .. -- .-- . - .---.- ---~ .------

Enclosure to NL-13-1528 SNC Letter to U. S. Fish and Wildlife Service, Dated November 10, 2006 Altamana RiveI' Mussel Surwy                                                           December 2. J998 LA. WProject J:z()()()..8.()J 78 Mussels were collected, identified., and counted in the field and released at each colJection site.
Mussel specimens were classified       as alive or as shells (nacre with some luster and perio'stracum intact). Few subfossil (lusterless or chalky nacre and peeling periostracum) shells were observed, so dead shells were not differentiated into recently dead and subfossil categories.
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Enclosure to NL-13-1528 SNC Letter to U. S. Fish and Wildlife Service, Dated November 10,2006 Altamalla River MusselSurvey                                                        December 2. 1998 LA W Project /1000-8-0178 3.0 RESULTS 3.1 SPECIES COMPOSmON AND RELATIVE ABUNDANCE The September      25~26,   1998 survey yielded 1336.5 mussels (alive and shells) representing 12 species (Table 2). The collections included the six species listed in the GDNR and USFWS databases (Table 1) and six other species that are *known to occur in the Altamaha River system*
(Johnson, 1970).      The collections were dominated by
* E. hopelonensls (29.2 % of the total collection), E. iclerina (17.5 %), Lampsi/is splendida (16.2 %), E. darienris (14.3 %) L dolabraeformis (11.4 %), and E. shepardiana (8.5 %). Collectively, these six species accounted for 97.1 percent of the mussels collected (Table 2).
Comparison of data from the 1968, 1993, and 1998 surveys indicate clear differences in species composition and relative abundance among surveys (Table 3). The most notable shift in species composition was apparent upon comparing the 1968 relative abundance data to the 1993/1998 data. The 1968 collections contained more L. dolabraeformis (56.5 %) and E. spinosa (10.0 %),
whereas E. iClerina was absent, as were three species that were collected in 1993 and 1998 (Uniomerus carolinianur, Pyganodon gibbosa, and Vil/osa delumbis). Differences between the 1993 and 1998 collections were primarily due to relatively fewer E. hopelOnensis and relatively more E. iererina in 1998 compared toJ993 (Table 3).
I The September 1998 collections included 1,213 live mussels and 123.5 shells (Table 2). Shells of r     8 of the 12 species encountered in the survey were collected . .The six most abundant species accounted for 98.3 percent of the shells,compared to 97.1 percent of the living mussels. There I      were greater differences at the species level between the relative abundance of living mussels and shells. E//iplio hopelOnenris. E. darienris. and L. splendida accounted for 83 percent of the I      collected shells, compared to 57.2 percent of the living mussels. Relatively few E. shepardiana and E. iClerina shells were collected (3.2 %) compared to the occurrence of living specimens in I     the collection (28.3 %).
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Enclosure to NL-13-1528 SNC Letter to U. S. Fish and Wildlife Service, Dated November 10, 2006 AltamahaRi'ler Mussel Survt!}'                                                     Deceillber 2. 1998 LA W Project J2000-8-0178 3.2 ABUNDANCE The abundance of mussels in the study area was based on the number of mussels collected per
       . hour of effort (CPE). This approach allowed for comparison of the September 1998 survey results with the 1993 data collected QY Dr. Keferl (Appendix B; Table 8.2). The 1968 data were recorded
       . as the number of mussels per square meter and therefore: the 1968 abundance data are not directly comparable with the 1993/1998 survey results. The much lower water levels encountered by Sickel (1969) compared to the \993/1998 surveys was more conducive to estimating mussel densities.
The overall CPE for the September 25-26, 1998 survey was 46.0 mussels per hour, representing 41.8 living mussel~ per hour of effort compared to only 4.3 shells per hour of effort (Table 2). The September 1998 collection included several age groups of the predominant species.               Young I        mussels (less than five years old) were observed for E. hopetonensis. E. dariensis, E. shejxzrdiana, and E. icterina. Although hand picking is biased toward larger mussels, the occurrence of young I        mussels in 1998 indicates that reproduction is occurring in the Altamaha River . .
I        The 1993 survey of the Altamaha River yielded a higher CPE than did the 1998 survey with an overall CPE of 118.8 representing 102.2 living mussels and 16.6 shells per hour of effort (Table I
r.
4). The 1993 CPE for live mussels was greater than the 1998 CPE by a factor of two, whereas the 1998 CPE for shells were much lower than the 1993 CPE (4.3 vs. 16.6 shells per hour of effort, .
respectively). The differences between years was primarily due to more E. hopetonensis in the 1993 collections (Figure 3).
I Examination of the 1993 CPE for specific locations indicated that 301 of the 554 living E.
I         hopelonensis,or 54 percent of the total nwnber of living specimens collected in 1993 were from RM 122 (Location 1), compared to only 64 (or 19 % of the living specimens) at the same location I*        in 1998 (Appendix B; Tables B.I and B2).         Differences in CPE between years likely reflect collecting efficiency between years based on lower water levels in 1993 .
I 3.3 SPATIAL DISTRIBUTION I         The distribution ofmussels in the Altamaha River between RM 122 and RM 110 varies widely I         based on the results of the September 1998 survey (Appendix B; Table B.I). The number of live I                                                         3-2
                                                             - ' ~ - - .~- ~~---- ---- . -- - ----             - - _.

Enclosure to NL-13-1528 SNC Letter to U. S. Fish and Wildlife Service, Dated November 10, 2006 Altomaha River Mw.rel Survq                                                           Deumber 2.1998 LA W Project 12~'()178 mussels collected ranged from none at Location 12 (RM 115.4) to 311 at Location I (RM 122.0)..
Shells were not collected at seven of the 23 collection sites and the maximum number of shells (37) was collected at Location 12.
The general distribution of mussels in the survey reach was evaluated by comparing the average CPE for the six collection sites upstream of the U.S. I ,Highway bridge (Locations 1-6) with the average CPE for the 17 doWnstream collection sites (Figures 2a and 2b). That comparison showed that live mussels were collected at twice the rate upstream of Plant Hatch (Table 5). Overall, 28 percent of the total effort was extended upstream, which accounted for 45 percent of the total collection. Shells were collected at similar rates upstream (5.6 shells per hour of effort) and downstream (3.7) of the U.S. I Highway bridge.
Examination of the collection data at the species and location level indicate that the collections at Location I at RM 122.0 contributed to much of the observed upstream/downstream differences (Figure 4) . . The Location I collection accounted for 23.3 percent of the total collection and 58.5 percent of the E. icterina. On average, the higher upstream collection rates were due to E.
hopetonfmsis, E. shepardiana, E. icterina, and L. dolabraeformis.               Upstream/downstream I      collection rates for E. dariensis were similar, whereas collection rates for L. splendida were higher downstream (Table 5).
t Similar spatial differences were evident in the 1993 survey data collected hyDro Keferl (Table 6).
As in 1998, the overall upstream collection rates in 1993. were higher by a factor of approximately two and collection rates for the six predominant species followed the same general upstream/downstream trends noted for the 1998 survey.
In both the 1993 and 1998 surveys, Uniomerus carolinianus, Pyganodon gibbosa, and Utterbackia imbecillis were collected more frequently downstream of the U.S. 1 Highway bridge. These three mussel species are commonly associated with soft mud bottoms and slow moving water (Johnson.
1970), habitat that was sampled more downstream than upstream in both the 1993 and 1998 surveys.
I      Examination of habitats sampled at each site (Table 7) and channel features within the reach that was surveyed (Figures 2a and 2b) suggest that the observed mussel spatial distribution pattern I
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Enclosure to NL-13-1528 SNC Letter to U. S. Fish and Wildlife Service, Dated November 10, 2006 AI/amaha River MlISs,1 Sw-ny                                                          December 2. 1998 LAW Project J2{)()()..8-0178 reflects habitat and not the operation of Plant Hatch. The highest collection rates both upstream and downstream of Plant Hatch were associated with stable sand bars at the river bends near RM 122.0, RM 118, RM 114, and RM 110. The river channel downstream of the U.S. I Highway
* bridge is relatively straight between RM 117 and RM 114.5, a reach where collection rates were consistently lower in 1998 (Figure 4) . . The collection sites within this reach generally had steeper
     . banks, less stable sand bars, and higher currents than .collection sites at the river bends where collection rates were consistently higher.
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Enclosure to NL-13-1528 SNC Letter to U. S. Fish and Wildlife Service, Dated November 10, 2006 Altamaha Riv~r Muss,1 Survey                                                          December 2. 1998 LAW froj,ct J200Q-8"(}178 4.0 

==SUMMARY==

A September 25-26, 1998 survey of the freshwater mussel community in a 12-mile reach of the Altam~       River in the vicinity of Plant Hatch documented the continued existence of viable populations of 12 mussel species. Mussels with State or Federal threatened or endangered status are not known to occur in the vicinity of the facility, but .the collections were dominated by species that are endemic to the Altamaha River system andlor are considered by the USFWS as "Species of Concern" because the status of their populations is not known.
The September 25-26, 1998 col1ections included six species listed in the GDNR and USFWS databases and six other species that are known to occur in the Altamaha River system. The collections were dominated by E. hopelonensis (29.2 % of the total collection), E. iClerina (17.5
           %), Lampsi/is splendida (16.2 %), E. dariensis (14.3 %) L.            dolabraeformis (11.4 %), and E.
shepardiana (8.5 %). Collectively, these six species accounted for 97.1 percent of the mussels collected in 1998.
A comparison of the 1998 survey data with data collected in the vicinity of Plant Hatch in 1968 t          and 1993 suggest shifts in species composition and relative abundance, particularly between the 1968 and the 199311998 surveys. The most notable shift in species composition was the lower I           relative abundance of L. dolabraeformis and E. spinosa in the 1993/1998 surveys compared to the I ..
  ~.~
1968 survey and the absence of E. iClerina, a common species in the 1993/1998 collections; in the~ ......
1968 survey.
I           The shift in relative abundance suggested by comparison of the 1968 and 199311998 survey data may be related to a combination of factors including water levels during the three surveys which I           can effect mussel distribution and sampling efficiency. The shift also corresponded with the invasion of the Altamaha River system by the Asiatic clam (Corbicula manliensis), which was I           first reported in the system in 1971 and reached densities of 52,000 square meter in the vicinity of Plant Hatch by 1974 (Sickel, 1976). Qualitative changes in unionid densities between the 1968 I           collections (Sickel, 1969) and limited data collected in 1973 and 1974 led Sickel (1976) to suggest that the abundant Corbicula population may be competing with .the larval and juvenile unionid I           populations in the Altamaha River.
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Enclosure to NL-13-1528 SNC Letter to U. S. Fish and Wildlife Service, Dated November 10, 2006 Altomaha River MrasII Suney I
December 2. 1998 LAW Projlct 12()()(J...8..()178 I           The 1993 and 1998 survey data indicates that, on average, mussels within the Altamaha River study area are more abundant upstream of Plant Hatch "than downstream. Live mussels were I           collected at twice the rate upstream in 1998, and in 1993 the average collection rate was over six times higher upstream. Differences in collection rates between yearS likely reflect the direct I           effects of water levels "on mussel distribution and collection efficiency.
          " differences between years suggeSted that the      distrib~tion Consistent spatial of habitat within the river reach I           surveyed, rather than operation of Plant Hatch. accounted for the lower downstream collection rates. The highest collection rates both upstream and downstream of Plant Hatch were associated I           with stable sand bars. The river channel downstream of the U.S. 1 Highway bridge is relatively straight between RM 117 and RM 114.5, a reach where collection rates were consistently lower in I"          1993 and 1998. The collection sites within this reach generally had steeper banks, less stable sand bars, and higher currents than collections sites at the river bends where collection rates were "
consistently higher.
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Enclosure to I\lL-13-1528 SNC Letter to U. S. Fish and Wildlife Service, Dated November 10,2006 Altamaha River Mussel SIUW)I                                                         December 2. 1998 UW Project 12000-8-()J78

==5.0 REFERENCES==

Johnson, R. 1.            1970. The Systematic and Zoogeography of the Unionidae (Mollusca:Bivalvia:Unionacea) of the Southern Atlantic Slope Region. Bull. Mus. Compo Zool. 140:263-450 Sickel, J. B. 1969. A survey of the Mussel Populations (Unionidae) and Protozoa of the Altamaha
            - -      River with Reference to their use in Monitoring Environmental Change.s. Master of Science Thesis, Emory University.
Sickel, 1. B.1976. An Ecological Study of the Asiatic clam, Carbicula inanilensis (Phillipi, 1841), in the -Altamaha River, Georgia, - with Emphasis on Population' Dynamics, Productivity, and Control Methods. Ph.D. Dissertation, Emory University, Atlanta, Georgia.
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Enclosure to NL-13-1528 SNC Letter to U. S. Fish and Wildlife Service, Dated November 10,2006 Allamp/Ja River M_I Swwy                                              Decem~r2, /998 LAW Proj~cI12(J()().8..0178 I
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Enclosure to NL-13-1528 SNC Letter to U. S. Fish and Wildlife Service, Dated November 10, 2006 Allamaha River Mussel Survey                                                                                               December 1, 1998 LAW Project No. 12000-8-0178 Table 1: Freshwater Mussels Potentially Occurring In the Allamaha River near Plant Hatch.
Global      State      Last Date Scientific Name            Common Name            Rank        Rank       Reported       County         U.S.G.S. Quad A/asmidonta arcula         Altamaha arc-mussel    G1G2         S2?    1968-Summer       Appling     Baxley NE 1968-07-00        Appling      Gray's Landing Elliptio dariensis         Georgia elephant-ear    G3          S3     1968-Summer . Appling      Baxley NE Elliptio hopetonensis      Altamaha slabshell      G3          S3?    1968-Summer       Appling     Baxley. NE Elliptio shepard/ana       Altamaha lance          G2          S2?    1968-Summer       Appling      Baxley NE Elliplio spinosa           Georgia spiny mussel    G1         S1S2    1969-05-00        Appling      Baxley NE 1969-08-00        Appling      Gray's Landing Lampsilis dolabraeformis   Altamaha pockebook . G2          S2?- -
1969-{)8-{)0 Appling      Baxley NE Source: GDNR (1996) and USFWS (1997) databases.                                     Prepared by: RGK 10/17/98 Checked by: CWN 10/30/98 Page 1 of 1

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Enclosure to NL-13-1528 SNC Letter to U. S. Fish and Wildlife Service, Dated November 10, 2006
                                                            --~.
December 1,1998 Altamaha Mussel SUNey LA W Project No. 12000-8-0178 I                                         Table 2: Summary of Freshwater Mussels Collected from the Altamaha River near Plant
~                                                                           Hatch, September 25-26,1998.
Shells Overall Collection                 Live Mussels c}
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Elliptio hopetonensis              390 29.2     13.4   342           28.2    11.8     48      38.9 1.7 Elliptio darien sis          190.5 14.3            6.6  159          13.1    5.5     31 .5    25.5 1.1 Elliptio shepardiana               114      8.5    3.9  112          9.2      3.9       2      1.6    0.1 Elliptio spinosa                     1      0.1    0.0    1 .        0.1     <0.1       0     0.0     0.0 Elliptio icterina                 234 17.5         8.1 232           19.1    8.0        2      1.6 ,0.1 Uniomerus carolinianus               7      0.5    0.2    6          0.5      0.2       1      0.8    0.0 Alasmidonta arcula .                 2
* 0.1       0.1    2          0.2      0.1       0     0.0     0.0 Pyganodon gibbosa                    4      0.3    0.1    4           0.3     0.1       0     0.0     0.0 Utterbackia imbecillis              20      1.5    0.7   19           1.6     0.7     .1      0.8 . 0.0 Lampsilis dolabraeformis           153 11 .4       5.3  138          11.4    4.8       15     12.1 0.5 Lampsilissplendida        ,       216 16.2         7.4  193          15.9    6.6      23      18.6 0.8 Villosa delumbis                     5      0.4    0.2    5          0.4      0.2       0     0.0     0.0 Totals 1336.5 100.0        46.0   1213 100.0 41.8               123.5 100.0      4.3 Prepared by: RGK 10/27/98 Checked by: CWN 10/30/98 Page 1 of 1

Enclosure to NL-13-1528 SNC Letter to U. S. Fish and Wildlife Service, Dated November 10, 2006 Altamaha River Mussel Survey                                                                                         December 1, 1998
   . LA W Project No. 12000-8-0178 Table 3: Relative Abundance of Mussels in the Altamaha
..            River In the Vicinity of Plant Hatch, 1968,1993, and 1998.
Relative Abundance (%)
Species             Sep-98         Jul-93                 Aug-68 Bliptio hopetonensis             29.2             44.7                   27.1 Elliptio dariensis               14.3                8.6                  0.7 Bliptio sheparriiana               8.5               7.2                  0.9 Bliptio spinosa                    0.1               0.6                 10.0 Bliptio ietanna                  17.5                5.5                  0.0 Uniomerus earolinianus             0.5               0.9                  0.0 Alasmidonta arcula                 0.1 .              1.5                  1.5 Pyganodon gibbosa                 0.3                1.5                  1.1 UttertJaekia imbeeillis            1.5               2.3                  0.5 LampsiliS dolabraaform;s         11 .4            12.4                   56.5 Lampsilis splendJda .            16.2             14.7                    1.7 Vil/osa delumbis                   0.4               0.1                  0.0 Total   100.0            100.0                  100.0 I            Notes:
: 1. 1968 data from Sickel, 1969.
: 2. 1993 data from Dr. Eugene Keferl, Coastal Georgia Community College, Brunswick.
I                                                   Prepared by: RGK 10127/98 Checked by: CWN 10/30/98 I
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Enclosure to NL-13-1528 SNC Letter to U. S. Fish and Wildlife Service, Dated November 10, 2006 Altamaha Mussel Survey                                                                                                              December 1, 1998 LAW Project No. 12000-8-0178 I                                  Table 4: Summary of Freshwater Mussels Collected from the Altamaha Rivernear Plant
~                                                                         Hatch, July 13-15, 1993.
i                                                              Overall Collection              Live Mussels                Shells i
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El/iptio hopetonensis          629    44.7    53.1     554       45.7    46.8     75     38.1    6.3 Elliptiodariensis               121      8.6  10.2      100       8.3    8.4      21     10.7    1.8 Elliptio shepardiana            102      7.2     8.6    95        7.8    8.0         7    3.6    0.6 Elliptio spinosa                   8     0.6     0.7      4       0.3     0.3        4    2.0    0.3 Elliptio icterina                 78     5.5     6.6    75       6.2     6.3         3    1.5    0.3 Uniomerus carolinianus            12     0.9     1.0      9      0.7     0.8         3    1.5    0.3 Alasmidonta arcula                21     1.5     1.8    21        1.7     1.8        0   0.0     0.0 PYflanodon gibbosa                21     1.5     1.8     17       1.4     1.4        4    2.0    0.3 Utterbackia imbecil/is            33     2.3     2.8     14       1.2     1.2      19     9.6    1.6 Lampsi/is do/abraeformis        175   12.4     14.8     141      11 .6   11.9      34    17.3    2.9 Lampsilis splendida             207   14.7     17.5     180      14.9    15.2     27     13.7    2.3 Villosa delumbis                   1     0.1     0.1      1       0.1     0.1        0   0.0     0.0 Totals 1408 100.0 118.8           1211 100.0 102.2           197   100.0 16.6 Prepared by: RGK 10127/98 Checked by: CWIV 10/30/98 Page 1 of 1

 -Enclosure to NL-13-1528 SNC Letter to U. S. Fish and Wildlife Service, Dated November 10, 2006 Altamaha Mussel Survey December 1, 1998 LA W Project No. 1~OOO-8-0178 Table 5: Comparison of Freshwater Mussels Collected from the Altamaha River Upstream and Downstream of U.S.Hlghway 1 Bridge, September 25-26, 1998.
1                                                   -I 0
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Elliptio hopetonensis        98     17.6 12.0      244    37.1    11.7     19     41.3   2.3          29     37.4     1.4 Bliptio darien sis           85     15.3 10.4       74    11 .3   3.6       2     4.3    0.2         29.5    38.1     1.4 Elliptio shepardiana         58     10.4 7.1        54     8.2    2.6       2     4.3    0.2           0       0.0    0.0 Elliptio spinosa               0     0.0   0.0       1     0.2    <0.1      0      0.0   0.0            0      0.0    0.0 Elliptio icterina           218     39.2 26.6       14     2.1    0.7       2      4.3   0.2            0      0.0    0.0 Uniomerus caro/inianus        3      0.5   0.4       3     0.5    0.1       0      0.0   0.0            1    ' 1.3    0.0 Alasmidonta arcula            0      0.0   0.0       2     0.3    0.1       0      0.0   0.0            0      0.0    0.0 Pyganodon gibbosa             0     0.0    0.0       4     0.6    0.2       0      0.0   0.0           0       0.0    0.0 Utlerbackia imbeciJIis        B      1.4   1.0      11     1.7    0.5       1     2.2    0.1            0      0.0    0.0 Lampsilis do/abraeformis     14      2.5   1.7     124    18.9    6.0       2     4.3    0.2          13      16.8    0.6 Lampsilis splendida         69      12.4 , 8.4     124    18.9    6.0      18     39.1   2.2            5      6.5    0.2 Villosa delumbis              3     0.5    0.4       2     0.3    0.1       0      0.0   0.0           0       0.0    0.0 Totals 556    100.0 67.8      657   100.0 31 .5       46    100.0   5.6         77.5 100.0       3.7 Prepared by: RGK 10127/98 Checked by: CWN 10/30/98 Page 1 of 1

I -    ---
Enclosure to NL-13-1528 SNC Letter to U. S. Fish and Wildlife Service , Dated November 10, 2006
                ~        ~
AI/amaha Mussel Survey LA W Project No. 12000-8-0178
                                     ~       -..--,  .,....,..                  --.
December 1, 1998 I                        Table 6: Comparison of Freshwater Mussels Collected from the Altamaha River Upstream and Downstream of
~I                                                                      U.S.Hlghway 1 Bridge, July 13-151993.
live Mussels                                       Shells i                                                               Upstream                   Downstream           Upstream                 Downstream I                                                                                    -i '              >>                                             ~
                                                           -i 0
                                                                              ~
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Elliptio hopetonensis           397       52.2     80.7     157      ~4 . 9  22.7    7    31.8   1.4         68      38.9   9.8 Elliptio darien sis              41        5.4      8.3      59      13.1     8.5    0     0.0   0.0         21      12.0   3.0 Elliptio shepardiana             81       10.6     16.5      14       3.1     2.0    0     0.0   0.0          7       4.0   1.0 Elliptio spinosa                    0      0.0      0.0       4       0.9     0.6    0     0.0   0.0          4       2.3   0.6 Elliptio icterina                73        9.6     14.8       2       0.4     0.3    2     9.1   0.4          1       0.6   0.1 Uniomerus carolinianus              2      0.3      0.4       7       1.6     1.0    0     0.0   0.0          3     ' 1.7   0.4 Alasmidonta arcula                17       2.2      3.5        4       0.9     0.6    0     0.0   0.0          0       0.0   0.0 Pyganodon gibbosa                   0      0.0      0.0       17       3.8     2.5   0     0.0    0.0         4        2.3   0.6 Utterbackia imbecillis             0      0.0      0.0       14       3.1     2.0   4     18.2   0.8         15       8.6   2.2 Lampsilis do/abraeformis          73       9.6      14;8      68      15.1     9.8    2     9.1   0.4         32      18.3   4.6 Lampsilis splendida               77       10.1     15.7     103      22.9    14.9   7     31.8   1.4         20      11.4   2.9 Vi/losa delumbis                   0      0.0      0.0        1. 0.2      0.1   0     0.0    0.0         0        0.0   0.0 Totals     761      100.0 154.7        450      0.0     64.9  22    100.0   4.5        175    100.0 25.3 Note: Data provided by Dr. Eugene Keferl, Coastal Georgia Community College.              Prepared by: RGK 10/27/98 Checked by: . CVWJ 10/30/98 Page 1 of 1

Enclosure to NL-13-1528 SNC Letter to U. S. Fish and Wildlife Service, Dated November 10, 2006 Altamaha River Mussel Survey LAW Project No. 12000-8-0178
                                             -                  ~
December 1, 1998 Table 7: Mussel Sampling Sites In the Altamaha River near Plant Hatch, Toombs and Appling Counties, Georgia, September 25-26, 1998.
Sampling                                                                Live Mussels Site   River Mile                       Habitat Type                    (no.lhr.)
1      122.0    Head of sand bar                                       155.5 2      121.9    Backwater at end of sand bar                            53.8 3      118.1    Shaded bank                                             30.8 4      117.8    Tailend of sand bar                      ,               1.0 5      117.6    Steep bank downstream of small slough                   73.8 6      117.3    Tailend of sand bar                                     28.5 U.S. 1 Highway Bridge 7      116.9    Steep bank                                              26.7 Plant Hatch 8      116.5    Steep bank                                              40.0 9      116.4    Steep bank                                              21.0 10      116.4    Bank side of sand bar                                   10.0 11      116.4    On sand bar                                              0.0 12      115.4    Sand bar                                                26.0 13      115.4    Tailend of sand bar                                     21.0 14      115.4    Head of sand bar                                        79.5 15      115.1    Sand bar                                                 2.0 16       114.7    Mouth of cypress swamp                                   B.O 17       114.5    Backwater slough                                        10.7 18       113.8    Ponded area at tailend of sand bar; mouth of oxbow      50.4 19       113.7    Side of sand bar                                         ~.3 20       110.5    Steep bank                                              73.3 21       110.5    Slough at tailend of sand bar                           20.0 22       109.9    Backwater at tailend of sand bar                        24.0 23       109.9    Tailend of sand bar            -
74.5 Page 1 of 1

Enclosure to NL-13-1528 SNC Letter to U. S. Fish and Wildlife Service, Dated November 10, 2006 AltDmtlila RM,. MlISs.1 Swwy                                          DeCC!",bn 2. 1998 LA W p,.oj.ct 12000-8-0178 I
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Enclosure to NL-13-1528 SNC Letter to U. S. Fish and Wildlife Service, Dated November 10, 2006 rN I                                                                                                        I I
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I FRESHWATER MUSSEL SURVEY AL TAMAHA RIVER LAW                                        SITE LOCATION MAP I  APPLING COUNTY. GEORGIA           LAWGIBB Group Member ~
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Enclosure to NL-13-1528 SNC Letter to U. S. Fish and Wldlife Service, Dated November 10,2006
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* Bas e Map Source; USGS 7.5 min. Topographic Quadra ngles; Grays Landing                                         l oor:J ;:': $ one Altamaha R Ver
                                                                                                                                                .~pp ljng   CO;'Jr:!les, -Gecrg ia LAW--**                                                                                  Sampling Lo:;a1ion M ap P"'Ject No 12000*8-0178 (pil ote.inspec ted 1985) ano Baxley NE (photo-revisod 1988;
                                                                                                                                                                                                            .. iLAwgl&sect;.&sect; Group                      M~J:Il.~~rA                                                                        Figure 2b O ~r" :')rQ:1  f,:{ ... ~ IIIh."tH"e       ('"'hQl"'~.:I~ R v* ~...i:::.. t41'eJ~i'

Enclosure to NL-13-1528 SNC Letter to U. S. Fish and Wildlife Service, Dated November 10, 2006 I
I                     ---- -- -- - _._------      - - - - - - - - - -- -- _. __ __            ......    .__.
50*
I      i 45 .
I      I I
I I            40 I      1 35                                     01 993 I
I 01998
                .;
:. 30 ..
4; a.
I       ,
i 1:>
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                ~
                -0 25 u
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2:
UJ  20 0..
u I                    15 .
I                     -                                            -                                I II 10 -         *.. ,
         .I,
(
I                                                r- l ~.,~                            c:;
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                                                                                             .....             I, I            l I                                        Species I
I                                                                                    POORQUAUTY ORtGlNAL I
I  Freshwater Mussel Survey Altamaha Rver
:ilAW . '
                                         !                                 j Comparison of the CPE for Six Mussel Species Collected in 1993 and 1998 I Toombs and Appl'ing Counties Georgia
:LAWGIBB Group Me.! !,ber.
PrOje-ct No. 12000-8-0178 Figu re 3 I                                                  Prepared By : RGK 10/30/98        Checked By : CIlvW 10/30/98

Enclosure to NL-13-1528 SNC Letter to U. S. Fish and Wildlife Service, Dated November 10,2006 160.00 140.00 O OIM r Species
             '120 .00 I10 Ol.amps/lis splen<ilda Lampsilis dolablaefolmis iI EI E/liptio icterina
_ El/iptio shepardiallf1 1::
      ,g     100.00                                                                   , Ii1 ElHptio dariensis UJ I O EUliptio    Ilopelonensis I
        ~
       'a."
      '0       1>0.00
      .l!!
       <.'l 2!
o
()
      "        6000 z
40 00 20.00 0.00 m          co   to   ..,                                                 ~       ro      Ie               Ol 0
                                     ..;   ,..: ,..: ,..:
(J)
                                                          <D U)
                                                              <ri
                                                                     '&#xa5;
                                                                     <ri     '"  ui "c                   ,0;     ,,.,     'a"    0;
                                                                             ..j            ~            ~
C;;                                                                                                      o N                           ~
                                                              ;:                                                                          ~
River Mile
                                                     ~~~!.:~::b~:~j Fresrlwater Mussel Survey                                                                            Spatial Distribution of Live Mussels Altamaha River                                                                            by River Mile, September 25-26, 1998 Toombs and Appling Counties                                                                                Project No. '12000-8-0178 Georgia                                                                                                              Figure 4 Prepare{j By : RGK 10/30198                   Checi<.ed By : CVVVV 10/30!98 POORQUAUTY ORIGINAL

Enclosure to NL-13-1528 SNC Letter to U. S. Fish and Wildlife Service, Dated November 10, 2006 I      Altomana River Mussel Survey LAW Project 12000-8-0178 December 2. 1998 I
I I
I I
I I
I I                                   APPENDICES I
I I
I I
I I
I I

Enclosure to NL-13-1528 SNC Letter to U. S. Fish and Wildlife Service, Dated November 10, 2006 Altamaha River MlUSel Survey                                          December 2. 1998 LA W Project 120()()..8.0178 I
I I
I I
APPENDIX A I                                   Field Data Records I
I I*
I I
I I
I I

Enclosure to I\JL-13-1S28 SNC Letter to U. S. Fish and Wildlife Service, Dated November 10,2006 FIELD DATA RECORD I
                        .;1.   ,-,,/l4k-r I,..cJv r              1.3 c.olle&.-frr.. Ju,v"..
I                      1-0,-l-Area Ollf!
('~-8)
Loc.r
                                                            ..l Areas Sa. led Area Two
(
IS"/t).        Are! Three Area Four o *                     .:>...0/ktUKi .
I Bank V89eUltton Shading I  Banlc Slope
                                  /(J      I Banlc Height Water Substrate Organic Material Fallen Trees I       StUIllP S Lags I       Leaves Detritus I  Aquatic Vegetation I  Water Temperature Depth Sampled         C -3' I
Current
  . Genero!
oeseri pt; on of *.aten         til (,~ s +- AL./ ~:l t' i I                        i ,,,   111..   *dd,,*
                           +Yc'o) l, r to, I                    ib \g iV111\
I I
I

Enclosure to NL-13-1528 SNC Letter to U. S. Fish and Wildlife Service, Dated November 10,2006 kG                      s-A Species Obs.netI                    Alive  Sh.lls       Aliv. SMlls        Alive  Shells       Allv. Shells I
iJJlptl0 hopstonegsts Elliptio    d.~l~sls Eiliptio sh'Rlrdl'nA 1Z 3 .1
                                             -R
                                                'l=.
I 0
0 E\llptlD spinosa I   ElIlptia Icterlna                  137 --_         .  ~            :z..-.
    ~5pect **                        ....&      0
    &#xa3; 111 pt10 product.
Unla..rus species                                     -L AI.s.tdonta .reul.
Anadont.     ~
g-Anodant. l.b.cillls J
t         las all .2!!!.!!!l
                                     ~)lL
  . TOllO Lampstlls      dol.brlefo~ls I   La.ps HI s sv lendt d.              ,g..                i  lzCJ~Li .
Vt Ilost d.lullbls
                                              ---              I~
I   Vi I las, vi be:s I
7 ~e.s:                 7   ~f..u;{4 I
3B                    to I         TOTAL (I~{3)                                 (j:,-It J 51J                                       SA-I                             /57      ~!(,~ !4. 'l re;             s-3.c:. l,m/c4          l"t itt E I                            J..lf.~  i'm/el1  '''' I 'f~J           3 J,*ct   ~/c-C~         ," 1~'i3 h ~Q < SUJ-lc~      ~ClV               ~,;       c.f- s u.J bc<    f' I
I 18    t2-D.st.s. Rec I
I I

Enclosure to NL-13-1528 SNC Letter to U. S. Fish and Wildlife Service, Dated November 10, 2006 FIELD DATA RECORD AltailN Rher 5yst_
I                  91i &#xa3;199-                                _...JiFfJ~I(:!-...:.!..~/...l.J~!i~B:....:..:..:..I.!_ _ _ _ _ _ _ __
t Date:
TIM:
COllecto.. (s): ,
fEr,      .~ II  IS' .
Field Nwller:
Caput.r F1Ie Naber:
K-e kvl t 1<, '(\,/ . Mauney ba ~
                                                                             - - - -'--.----:-:-,-r----:--.,..--------
IlL), c.:hcd,G Lat.                               Long.                                  Chan _ _ _ _ _ _ _ _ _ _ _ _ _ _ __
I  Locality:        A/&     111 t h  A. 0'<<, vee'             M Mite. I M           (:..11 (Hi!  Reeks                 I I
I                           t..-~9f'I~
Area One Anas Sa.let!
Area Four
:l. 0   fll In I  TllH1 Bank Vegetation Shading I  Bank Slope Bank Height I  WaUr Substrate Organic Mate ..l.1 I        Fallen Trees Stll1llPS Logs                  7 I        Leaves Detritus .
I   AQua~l   c, Vegetation I, Water     Te~perature Depth Sampled            '1' I   Current Gcnera I Description I
of :.Idtel"S I
I I
I

Enclosure to NL-13-1528 SNC Letter to U. S. Fish and Wildlife Service, Dated November 10,2006 Species Observed            Alive             Shells Elltptto hopetonenst,     ~
Ellfptl0 dartensls           ;
I Ellfptl0 shepardiane      -/JL Elltptl0 spinosa I   Elltptio tetarina         --B Elli pto specles Elliptl0 producta Uni o-erus species Alas.idonta freal.
Anodonta gibbosa Anodonta i.beet!lis Toxolss.. pullus Lampst 115 dolabraeforais .---tS ---L La.psills splendtd!         .5:                   I
    ~        delullbts
                               ~
    ~!.i.W I
I 40 I       TOTAL I                                                                                      .'"
I I
I 18   12-Data. Rec I
I I
~---------~~--.-.--                .. -.- ...* -- ... ..---" .. _-.- . --- ~"- . - _.-     -_ .. __ .. --_._--- --- ---.-.~~--~----~

Enclosure to NL-13-1528 SNC Letter to U. S. Fish and Wildlife Service, Dated November 10, 2006 FIELD DATA RECORD I
I I
I                                      Are. One                   Are. Two    Are. Three    Are. Four n.e                               f s:n,,'1 I    Bank VegeUtlon Shading I   Bank Slope Bank Height I   Water Substrata Organic Material Fa lIen Trees I        Stumps Logs I        Leaves
 ,.       Detritus Aquatic Vegetatlon I
Cur~nt I   Genera I Descr i pt i on of ~aters I*
I I
I I
                      .-- - . .. -~-.--- .. ---- - - - - - -" - .

Enclosure to NL-13-1528 SNC Letter to U. S. Fish and Wildlife Service, Dated November 10, 2006 Species Observed                 Alive   SIIells AIt... SIleUs       Ali"e Shells Alive Shells
    . i Ili pti 0 hopetonells is -.-L i Elliptio derieftsis EiliDtl0 sheptrdl!nt Elliptio spinosa E! Ilptio ieten;'a        --_. ---
ill!P12 species            ---
E,liptio product!
Unio_Pl! SpeCies Alas.,dont& arcul.
Anodonta 9ibbosa An~ant. imbeeiliis t      Toxalas.. P!!l!!
LamPs1lis dalabraetarsis I.. 14!psilfs splendida VillaS! de hmbb I      Villosa vibex I                                                               ----          --
I                                                                             ---
                                 *I - _0                                      ---
I            TOTAL I                                    I 11'>'1/ c.. ~.         1'1. I f( ~ 8 I                                 ....,
:A. Lt j~/c4            I  V?   194   3 I
I
        ,a '2-!)ata. Rec I
I I

Enclosure to NL-13-1528 SNC Letter to U. S. Fish and Wildlife Service, Dated November 10, 2006 L.. Q CoA."""'n '0.,:) 5 FIELD DATA RECORD I
I y    ,(  d-.v mIn      /.3    u-1I(c/-",. Jwl.l'-r A!3U ~Ied AM!. One                A.... Two                        ATN Three          ~.... Four Tille                         ~O a!1. 1:1, Bank Vegetation              WcmJ...~
Shadin.,                      S~
I   Sank Slope Bank Hetght I   Water Substrata Organic Material Fllllen TM!es I         StuJII)S Logs I         Leaves
.,.       Detritus AQuat:ic Veget:lltlon Water TeJll)er.ture I'  Depth S4.pled Current I    Gener51 Descri;ltion of '';oters I
I I
I 7
I
                                                                        -. ~ --- ..- -- _.

Enclosure to NL-13-1528 SNC Letter to U. S. Fish and Wildlife Service, Dated November 10, 2006 Species Obser.ed              AIt.,. Shells Altve    Shells      Alhe   Shells     "lhe   Shells Ellipti0 hopetonSftJis      ~ -1L Eillptio dllMensis          ~ ~
Eiliptio shepardisn.           -5"'  11 Ellipti0 spinosa E111pti 0 t c:terln! .
                              --.3i    ---d..
  !!.Ul!!2 sPecies Ellipti0 product.
Unio-srus species            2.- ---.0.
Al.s.fdont.     !!S!l!
Anadont. glbbos.
  "nadont. imbecilils Toxolas.. pullus lamps!l!s dolabrlleforftfi Lall!!s11 Is splendid.     ~ 3
   ~          delu_1s             r,~  ~
   ~          vibex TOTAL 1'1.
I I   IS   12-0ata _ ~ec

Enclosure to NL-13-1528 SNC Letter to U. S. Fish and Wildlife Service, Dated November 10, 2006 G. Pc..             C-aVf/~                      MrulU t.. oc.p.;:rl cn.J ~
FIELD DATA REcmm Alt...ha River              ~yst ..
                                                                                                                                   'C' .$" rn e..... Ct. .s Date:           '9/0lezY:                              Field NlAlber:   _---!::;...J.L..l...~..!,.-L..u....;..~..:...1_~_"::":"~~"':::":"....L...oo:.-1 TiM:       9: it7 /~ 10.r 0 ~                          Cwrputer,.F1l3 Nlrllber: ---"'!"'                         .-:--'--~--;-:-----------r-'
r* <0"'"''''''                (k,'9 ~yltPl.-'i (1.1"'&#xa3; Mck;l~ Ra., ~&#xa3;Y'".Jt{jljJ Lat. _ _ _ _ _ _ _-;-_ Long. _ _ _ _ _ _ _ _                                             Ch&rt I  Locall ty:    _~,4w/..Lf.rt~!M!:!U1b-sr.'----6.((-L.h~/c...ccc...,1'_-4A-~R.LM~'
                                                                                      ........!..../..!../7..L!.::.3~~
J I
L/ ' /'.v   )...0 wr I '1       ::::...  /. 3*hr .
I                                    Area One                              Area Twa                                         Area Three               Are!! Four Tillie                           :to m tb**
I  Ba.nk VegeUtion           !(\/qr:ri.J Shading                     Po.cl-u ( .
I  Bank Slope
(     ,
Blink Height              ')-fa +
I  Water Substrate         5<utd - 6,1-1:;
Organic Ha.terial Fa lien Trees                  V I         Stumps Logs Oetritu5 Aquatic ,
Vegetation I   Water Temperature Depth S.IIIJIled I
Current General Oescri pt ion of ,,4ters I
I I
I                                                                                                                                                -----
I
                                                                                , -,- -_. --    --" ~"---- "             ' -- - --- -- --- - -- -----

Enclosure to NL-13-1528 SNC Letter to U. S. Fish and Wildlife Service, Dated November 10,2006 speciel OIII...,M Eiliptio hopetOfteftSis
                                     ,1 Al tv. Shells
                                            --...a.
AIf".      Shells      Attn   Sh.lls  AU". Shells EllIptio dariensts
                                        -.fl...
EII I pt 10 shep"rdfl!! .      Cf     -L Ellhtlo spinosa Eiliptto letarin.
      ~          Ipec:1es Eiliptio product.
Unto_tVa spec:ia Alu.idont.      !IS!!!!               ---
Anodonta .9lbbosa AnodonU 1!!bss1l1 Is Toxol.s. .* pullus Laws 1 I is do labraefon.1s I     La.psi l ls splendid.
                                   --i:I- a
       ~d.lwabis
       ~:d!!!!.
*1 I                                                                                             ---
                                   .3   -=L=-   .- . - - .-- - --      ._
r -        TOTAL
 ,                                      1"1 I
I I
I                                                         Jf)
I

Enclosure to NL-13-1528 SNC Letter to U. S. Fish and Wildlife Service, Dated November 10, 2006 FIELD DATA RECORD AltauliA RiVer 5yst_
Dde:               91u 19.L.                                            Field ".tier:                                tfJ(.' '9f(f).' I 7 TI_:          2:26_1L                                4 -r-              Coapllter File Hllllller:             ----~-----::o~-----------
Collector(s):                       -:z it '{; {                                  t(rn Jc,         I Mama" .
                                                                                                                               ~ kg-eo 14 7 I                  f.-
Lat. _ _ _ _ _ _- - - ; - Long * ."......_ _ _ _ _.....-_ Chart _ _ _""'!"'"_ _ _                                                                 . _ _ _ _ _ _ _ _ _ _ __
Loc:a II ty:   ~fJ=I:l/..I:jbz!Z.::4r.:s4<'''-Oll.Jh~Q~..L:R~(u.IIL.!e.,.~:.,:=::....-r-I-JM:...o....M~";.".,.,.,,I,I....!../..IIIt!.1
* J                                               * ....L.q_ _ _ __ _ _ : _ - - -
Areas Sag led ArelTwo                                        Area Three           Arel Four Tille Sanlc vegetation Shading Sanlc Slope .
  . Banlc Hel ght Water Slibstrate Organic: Material Fallen Trees StUIllP S Logs I          Leaves Detritus I    Aquatic Vegetation Water Teaperature I
Current I    Gener"l Oescri pt Ion '
of Waters                     -----_._-
I I
I I
I

Enclosure to NL-13-1528 SNC Letter to U. S. Fish and Wildlife Service, Dated November 10, 2006 Species Obsened            Altve  Sllells    Allve       Shells    Alive   Shells    Alive   Shells Iitfptio hOpetoMMi!          I
   &#xa3;lllptlo dariensis ElIlptio shsptrdh... *.
I.
Eillptio spinosa .
Eiliptio leterlna EIII pto species
   &#xa3;lllptl0 producta Unla.eru$      species Alas.ido"&#xa3;! areula Anodon*U gibboS!
Anodonta 1mbeelllls Toxolas.. pullus Lampsills dolabraeformis l4!psills !plendlda
    !!!.l..2!.! de I UWIb h VI! lou vIbex I
I TOTAL I
I r
I 18    12-~ata. Rec I
I                                                      12 I
                                             --- . - . - "- ~ ~-- ".----

Enclosure to NL-13-1528 SNC Letter to U. S. Fish and Wildlife Service, Dated November 10,2006 LOcATIo" &
FIELD DATA RECORD
                                                              ''It.,,M River  S~tell Date:        9)u. h & .                       Field     NnIler~  ___         -!~=-.!_{J,:..!k......:.!_If(.;.......I..,;r-:.,...
                                                                                                                               .....;..:;.,...(-=,,_~,,-_ _ __
TIM:           ~ '.6CrJ. ~ :J.[) eo.puter FII. Nllllller: ----~-. --'J"'._____________
Collector(s):             . . j{'b.wl ( lin"I I IfA q ort t TM/1a.: Z Long. _ _ _ _ _ _ _ _ _ Chart _ _ _ _ _ _ _~---_---_ __
              --~....,.----r-L&to                      J LOC4l1tY~ /f/./-ns,a h<<           R, Veer,           /
                                                           "     A-I? At       II C,.&#xa3; "reas Sa., led Al"@aTwo                                       Are. ThT"ft                           Atea Four Tie Bank Vegetation Bank Slope .
Bank Height Water Substrate Organic Material Fallen T~es StUWIIS Logs I         . Leaves Detritus I    Aquatic
     'I e<jeutlon Water     Tmperatu~
Depth Sampled        :2-r' Current             sL..7 b F I     General Description
: f ;;aten          !LIe <fit., ._ r-I                          !Wvczh'j/ "2 I
I                                                                                                                                            ,!
I
                            -- \
{3 I
--------- --_. .- .- -.            -~.- -- - . - - ... 

Enclosure to NL-13-1528 SNC Letter to U. S. Fish and Wildlife Service, Dated November 10, 2006 species Ob. ."~                 ALlY. Shells Alive    SII.lls      Alive  Site I Is  Alive  Sllells
  ' Elllptl0 hopetonensis
[lllot;o dariensls 1~
Eillptl0 shepardt.n.
                                   ~                                                    -
Eillptl0 spinos.
     ~II tptl 0 I C1ertna l.!J.!.212 spectes Ell hrti0 product.
Utllo_rus spec:i es Alasaldont**rcul.
Anodonta glbbos.
Anodonta l.becil\ls Toxolas..* Dullus La.psilis dolabraeforals     .~)=
L**pslliJ splendid.
VI \Iou delullbls
                                   +                                                    -
     !i.llill.    ~                       --
I
         .. TOTAL             . ... ~
I f
I la    *'':-04t4. R~c I
I I

Enclosure to NL-13-1528 SNC Letter to U. S. Fish and Wildlife Service, Dated November 10, 2006 CSQ;h1              (Q:;         S \c,ktl #'\
FIELD DATA RECORD                                                                                                   10"-1/
Alt...ha Rtver Syst. .
r        ~q,,"(.             C()
Oate:              9' 1*Os-119r I
Field N.o.r:    -.!E=. J-e;. :.:.~(~:(~Q...L..J9('1I......::....:.,~_l_..=.E"':""~..:....L.I{""","'~1
                                                                                                                                                       . Q!;....J9.,..::3-!..:-=-&..lf...)_
TIM:         ::l '. fd..jJ - . ~ !;-;IO          Ca..,uter File Haber:
*1  Collector(s):
Lat.
i?f..b.I; Ii", } tt1ezrn,/,/'tl~ Me Ids Long.                                       Chart _ _ _ _ _ _ _ _ _ _ _ _ _ _ __
Loclll1ty:       ,A-I tr,fMQ b, Rtf'u,'                  /fK'M ~ 11t,<< 't LO(;jIItIl'D'" ~
I                        ~;i ~~ ~e J c.cllc... Iu,h~                                                                                                           Area Foar Tille                           3"'Onnh      'l Bank Vegetation             ,/v'0'tiL Shading Bank Slope .
Bank Height Water Substrata Organic Material Fa lien ' Tr~s StUIDPS Logs Leaves Detritus Aquatic Vegetation Water Tellperature I  Depth Sampled Current I  Gen~ral Descriptio" of Waters t                                                          '-.<Ya?rtad                    IL J
                                                                                                                )" ect rc tsd
                                                                                                                                   ;
tt..,
bU>f k r ,d~                   1                   fa a r! k cif.:b"a,d;-~~~_____
I                                                           K bac.                                             ()oJ/ tL. s~ bti r-.:..._ _- - ' - _ . . . - ;
I I
I                                  I LV Q lev-     ~v.:. )
I                                                                         IS:
                                    .~~---- -- - -- - ..          -.  - ""--"- -                                  .. - .- -.-- - -- - - -

Enclosure to NL-13-1528 SNC Letter to U. S. Fish and Wildlife Service, Dated November 10, 2006
                              ~-,,..,..,...,  ... -             ,_ "" . r, ,. '
                                                                                      . .l..~.
SlIells     Alhe         Shells       Alift      Shells       Alive     Sllells Eiliptio sheptrdlana '
Eiliptio 1pinosa
:a~
I      +/-            ..L2:::
                                                                                  .~
                                                                                     .3 Ellinlo tet.nna
                                                                                    ~
I* ~SpectH
[lllptl0 producta Unio!Srv~   species I  "nodonta 9; bbosa "nodante I IIbac I 111 s I  Toxa las. . pu !Ius Lamosilts dol.braeforais -2 .
I  L**DSilts 1plendld,
   ~         deluabts I.
I I
TOTAL                                                                         '-t 2---1--1 I
                                                                                      ~:::r~~
I                                                                                   de;   WVlJ    4-T ~
FClr 1-0:1 ~                 C0'r'-h,'td I                                                                                    5cv0- 13 r:     t(
I eS   l t l( e.. { #. 1/
I~,S- t-Ich I ~Yr-I                                                                                                                7 c .:2~ /C..t7 .':..,'
    /3  #2-0a td. "ec I                                                                                                                    I ~~3 I
I
                                                     .--.. - --.-~--    - " ' - '- - ' - - 

Enclosure to NL-13-1528 SNC Letter to U. S. Fish and Wildlife Service, Dated November 10, 2006
                                                                                                                                                              ~CVwtc.. ClS ~~cKe.ll:Ll I                                                                                           FIELD DATA RECORD I
I  Lat. _ _ _ _ _ _--:;--- Long.                                                                                          Chart _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ __
I  LOCA II ty: -!J4-~l..!..ht~!:1::fL!.~~t4.I:!ito.....-~Rwl~V:....::t.---::=:.....-*Jtr-.*.Q"4u:R l .LM.:...l..-*---L...<lIt.lo.~L&.'-jLf,--_ _ _ _ _ _ _ _ _ _ __
I                                                                                                  0V'- 5~GQ.v
                                      ~~ev                                                                       Areas Sa. led I                                             Aru One                                                  Area Two
                                                                                                                                        '.,oe...\\
                                                                                                                                       "'"              Area Three         Area Four Tiate                                       3omu..                                                                                                  30    Ar1<ao I  Bank Vegetation                   ~-w,lIt1w eo r<fy I 1Mn.-d.J.
ShadIng I  BAnk Slope BAnk HeIght I  Water SubstrAte OrganIc MaterIal Fallen Trees Stumps Logs I        Leaves Detritus I   Aquatic VegetAtIon Water Temperature Depth Sallpled Current General Description of "aten
  ---------~----- --- ~                                                                 -- -              -~   ... ---.~ -~                . - _ _ --

Enclosure to NL-13-1528 SNC Letter to U. S. Fish and Wildlife Service, Dated November 10, 2006 1+ '70v'~               0..,   )~
A1:,ouf' 5a-Q g4t" I    Speci es Observed                     Alive '       Shells
                                                                          ~4/
Alive       Shells '
Sa-J- 15~~
Alive   Shells     Alive She lis I  . Eillpti0 hopetone",i!              ..k!:f                                      1S(*. -- 2 Eli fptto daMen,is                 ~ ---                                      L(!'}   . 2 I    Ellfptl0 sheperd!.n.                     <0 ---                                       4 El!iptfo sptnos.
b I    Ell iptio fete"na
     .ll!.!P!2 species I    Elltptto prodllCU Uni OlftnlS spec1 es I
Alas.fdonta Anodoftta gfbbosa
                       ~
                                                                                           +
AnOdonta f.bacillis I     Toxa !as.. pullus 161 ~ ~ 7
                                        ~~L                                                                  ---
La.osilfs dolabraefors;s I     Lampst!ls splendfda                                                             I    :le( iSdf) I      ---
Vi llosa del..... ts I    !!l!.2.!.! v'l bell I
I                                                        ---                                                  ---
I          TOTAl                         I s='t          ---                      3.+-. Lf2           '[
                            ;2.. c.c,.1(i.vhv       JhN.,.                                  . ). c;/I-LC ~ /kwr"l I
1.9. ;C;lm/cL                                                           ~(    L.-n/cL I
I                                              c. (,. j/"fb I VI ed    ('1 ! C:: C(T         5(:, 3      .t-~/L I                                             Cc~b''1eJ              ~...,  r c. ~ j        .51 3     k/d I    '8    1-2-!la ta. Rec I                                                                          ,8 I

Enclosure to NL-13-1528 SNC Letter to U. S. Fish and Wildlife Service, Dated November 10,2006 L~ON/~
I                                                                                  FIELD DATA RECORD
                                                                                                                                                 .s:~~        ct.!)  . 12-'
I  04te:              9/.u L!? L .                                  Field Hnller:                                                                   ~ I (, 1(<-1 ~ /
Ti . .:      b,% ?;I~b-O                                         c-puter File Nlmller: _ _ _ _ _,;.,.....--';--_ _ _ _ _ _ _ _ __
I  Collector(s):
LAt. _ _ _ _ _
                              ~---           Long.
Ke f.eA ( K! n.t t MarM '>/h a<'C('!.j
                                                         -=-_____.,...-_ ChArt                                     _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ __
I  Locali ty:      --I-A:+-L-'h~tfNtIr~lUh.........--=.:Ioe.....(=v:<.",,;....;:::::!o;ro......-:-~-+MM~~L--+-J 4
                                                                                            /
Lqtt..,;.!.....I....1_ _.:....-_ _ _ _ _ __
I Areas Sa!!! led I                                  Are. One 1.. 0                .
Area Th"!             Am  Four I  Sank Vegetation                   f1~
Shading                         ftluY\.R              <
I  BAnk Slope Sank Height I  Water Substrate Organic ~tertal Fa lien Trees I          StullllS Logs I          Lellves Detritus I   Aouatic                      /V~ -.
Vegetation Water Temperature I   Depth S4mpled Current I   t3enera L Description of ;;aters I*
I 1
I I

Enclosure to NL-13-1528 SNC Letter to U. S. Fish and Wildlife Service, Dated November 10, 2006 S~I es    Obsened           Alive         Altve    Shells      Alhe*   Shells    Alhe     Shells Eiliptio hopetonens1,
   .Elllptl0 darlensl,
    ~lllptlo   shepard1aQl I*  Elliptio spinosa Eiliptio lcterlna I*  ~spec1es I   EI !lotio product.
Unio!!rus species Alas.ldonta .reula I   Anodonta   91 bbosa Anodonta lwbeclilis I   Toxalasm4 pullus
     ~a.psilis dalabrae1a~ls I    La.psilis splendlda
    ~deluabls I    Vi 11014 vi belli I
I I         TOTAL I                   ~~/cL lfl.{crHy I
I I
12- 04t4. Rec I
18 I
I

Enclosure to NL-13-1528 SNC Letter to U. S. Fish and Wildlife Service, Dated November 10,2006 FIELD DATA RECORD Alt..... River 5yst..
Date:        U:;s-19 r                                          Field Nlnlber:                 _-=ER~/{......:..'..:../..:...t~~&~:B:::.. . . ._ __________
TI_:     .5 ~S 1/:.....- (, ~ I (,                              COllpuur File H.-ber:                           -----:---:----r-"77"".----------....;...----
Co llector(s): _ _    W,;....-----=J(,:..lto..e=...J!;~'-rf,-..::lot:..I.!"':u,ry,...,/--L!:It1c',.l.J.!l/.W'JLnft?7'1.</'.:l-I'~n~~,-....JM'~*.uc...LZ=~/"-I[:;""._ _ _ _ __
Lat. _ _--:-_ _ _ _         ~-              Long. _ _ _ _ _ _.;......_ _ Chart _ _ _ _ _.....,..._ _ _ _ _ _ _ _ _ _ _.......;.._
Locality:     A:lh,,.,,q4 g RlINN,                                         ARM                           ""1,7 I                                                                                      5 I"vq-m (2 I                               Area One                                                        Area Two Are.., Sa_led Area Three                Am Four Tille
                                    /0-Sank   Vegetation   w.JI{J!y' W'~
Shading              (J(U hs I I  Sank Slope Bank Height I  Water Substrate OrganiC Material I       Fa lie" Trees Stumps Logs I       Leaves Detritus I  Aquatic Vegetation I  Water Temperature Depth S4npled I  Current General Description of liaters I
I I
I 2-/
I

Enclosure to NL-13-1528 SNC Letter to U. S. Fish and Wildlife Service, Dated November 10,2006 I  Species Obsened            Alive . Shells   A11". Shells      A11". Slielis    Alive     Shells gillptl0 hopetonensts E!!lptl0 darlensts
                              ' -:2-"
I  E11 Ipt10 she"..,,1 all!
Eiliptio spinosa Eillptl0 lcterlna            L li.1.!.I!l2 spec1n Eillptl0 producta Unlo_rus species Alas.ldonta    !!52!!
Anodont. 91bbosa Anadonta l.beelllls I"  Toxol.,.. 2!1l!1 La_os 1lis dolabraefopals J..-- Cl& .
La!psl!ls splendlda         2,;.~llLt Villose delu..,ls
    ~vlbel\
I TOTAL I
I I
I 18    IZ-Oata. Kec I
I

Enclosure to NL-13-1528 SNC Letter to U. S. Fish and Wildlife Service, Dated November 10, 2006 I                                                                                        FIELD DATA RECORD Sa.,..; (. ~..J
( t:gJl( ~ I?~ ~ : 12)
I                                                                               Field   N..oer~      __           --=&#xa3;...R...!.;/(:........;.,.L*1.....:C?;".I9:....1Ei.L..:-.'.;-.1....I..'t_ _ _ _ _ _ __
I  Collector(s): _ _ _ _ _ _ _..:...lo... . .....l.o:I~_r_-.!!.....l..J::l,'h-..L.:.....!J,o;,lU:~~~~""-J,.----------~
Lat. _ _---:---..,,...-_--,-_ Lont. _ _.-;..._ _ _ __
I                                h~m~g...:..4I..:qL...* .......:.;.JoR..I,JIlI k:'<<:",r-'....."p.M:A.!.:M~....!...1,-'lfJ. .!,. . J.~-:. . . -_ _ _ _ _ _ _ _ _ __
Locality: -&.A-..I.......I...JI                                        L*
I                                                                                S' /OVytr Areas S.."led I                                            Area One                                               Area Two                                                         Area Three                          Aree Four Tflle                                       l S I  Bank Yegeut loa                        SW~/*
Shading fit::; I-frr I  Bank Slope Bank Height                         ~3-~
I  Water Substrate Organic Haterial
                                                         /
Fallen Trees                                                c.
I        StUIiPS Logs V'"
                                                    .../'
I        Leaves Detritus I  AQuati c*
Vegetation Water Teaperature I  Depth Sa.p led                         4.-S-'
Current                           ,/l/CMLo:::::=.
I   Genera I Description of Water.;
I I
I I
I
  ----.--~--- ----- -- -                                                           ,.-- ..- .... . .'_.' - - .                ---'--------~

Enclosure to NL-13-1528 SNC Letter to U. S. Fish and Wildlife Service, Dated November 10, 2006 Species Obserted             Alive  Shells  Alive   SIIells     Alhe    Shells   Alive    Shells Elliptl0 hopetonen,ts 511tptl0 dariensis Eiliptio shepardian.
Eiliptio spinosa Eillptl0    i~terlna EII I pto species
[lllptlo product.
Unio_rus .pecies            ---L Alas.idonta    ~
Anodont. glbbosa               I Anodonta imbeciliis           L Toxolas.a pullus                  --_.
Lampsl lis dolabraeformis LallJlsllts splendid<<      ~'JI) ..
   ~.        delumbls ll!..W!   ~
I I
I       TOTAL                 K -
I                           10,7  &#xa3;mIJ-t. Il~o I
16 i1-n Ie(      (4q}
I I
I   13   n-Data. Rec I                                            ;J8 I

Enclosure to NL-13-1528 SNC Letter to U. S. Fish and Wildlife Service, Dated November 10,2006
                                        - -~ ........
                                ~7 ~~~IELD I                    (;oPe.
Z!::.. ~~&i1,.J        10 DATA RECORD Alt_1Na River Systs I ~ate:                V.2..!:.i'l r-         Field Nuber:              t::P/(:tqqg: r TI":         (, ~ 4~
                    \           'Gg q .       COIIIIUter File -Huabc--r-=:::.:::=::.::====:====:===::===========
I j
Collector(s):                     M I Kt-,. Mc.hclls               OQv," Mom!             b. nOll Rem k/'=1IKeI LAt.                                 Long.                               Ch.rt _ _ _ _ _ _ _ _ _ _ _ _ _ _ __
I Locality:         Alta 14:10 h9         &#xa3;/I/&.C,*        ,4{(J\,-1          II?>. f)
Arees Sa!!! led Are, One                     Are, Two                    Are, Three      Am Foar Tlae                           2c)@"l" Banlc Ve-getttion        \At, flaw .
Shading I  Bank Slope Bank Height I  Water Substr.te Organic Material Fa lien Trees I         Stumps Logs I         Leaves Detritus
                                                                                                                 .. I I  ~Qua't;c
   'Iege'ta'tion
   ~ater     Temperature I  Depth Sampled Current I   Gent!!!r~l Oesc:-;ption of "4ters I
I I
I I

Enclosure to NL-13-1528 SNC Letter to U. S. Fish and Wildlife Service, Dated November 10, 2006 Enclosure to NL-13-1528 SNC Letter to U. S. Fish and Wildlife Service, Dated November 10, 2006 l-FIELD DATA RECORD Alta..... River S,su.
S  C( nr.At
                                                                                                                                                                        . I(. cL.}'
r #: I b      )-
                                                                                                                                                             ~~~ ~993: q)
(
Date:                                                         Field Nnbc!":                       &#xa3;11(:1 HPJ:I]                                                                              .
Tt.e:   _.t...::::::......!-.;~~_ _....}L...::2:>-.:.:_*27~te!" Fi Ie /Cullbe!": -------r---r---------'--
I Co llector(s) : _ _ _-                 ____               ~l,(::.....pfL.LI.w~.J..("TI.....!.KrI...L&#xa3;:t1:r.../Y'l'7.--...J.M:..:..t.J.;(;J~m;2ZlI:~{wh.~f{WnWii,(~---------
Lat.              '                            Long.                                                       ClIart ...._ .        _ _ _ _ _ _ _ _ _ _ _ _ _ _ __
I Local it,:    _.J:-I4~I-Lh...u/hYLt~oiJ....!....lb..::.q-..J.R~(v~w~~1t&#xa3;~~M..:....l--lw/~3u..-J7t--------
I I
I                                                                                          Area Two                                                  Area Three                    Area Four I Ban k Vegeta t i on Shading I Bank Slope Bank Height I Water Substrate Organic Haterlal Fa llen Trees
*1        Stuaps Logs I        Leaves Detritus
'1  "auatic Ye<Je tatlon .
I  Depth Sup led Current I  General Description aT "'4ter~
I I
I I
I

Enclosure to NL-13-1528 SNC Letter to U. S. Fish and Wildlife Service, Dated November 10, 2006 I                               ---
                        ---.L   ~
I TOTAL t                  L)  ~/cL            \tt/{f' I                  U i.~  /c4         l'f~'>
I I
18  'Z-Oata. Rec I
I                                                        ~'8' I
                   - -_._- ---_   ...... _ - - -- - ...-  *. ,-". - --.. - - -~--- - .-. -----

Enclosure to NL-13-1528 SNC Letter to U. S. Fish and Wildlife Service, Dated November 10, 2006 FIELD DATA RECORD Sam e. ct.5 AIta.'" R1'ter Syst_
( *1:::71(: (C(Q3    ~ II)
Date:        9' / U /Pr                   Field Hullber:       _----.,;t.;;;..;..:P.~'J(..:....'l. .Lq9. .\.A1f)oc. :. /. . :. /. ; . .'L__ _ _ _ _ __
TI . .:   LI ~/&#xa5;         1/1 ~ ~O         CoIIpuUr FIle NDIIer:r--T"T-+--7"'7'---                                                  . _ _ _ _ _ _ _ _ __
l Collectar(s):
                       .-'       Moan e.yh,1!.
T}
HJ. Kf Q; It tGltIJJ                                                        I' Lat.                 .             LOII9.                                    Chart _ _ _-=:--_ _ _ _ _ _ _~_--
l Locality:       Ad ht   (cJ1Q  ba , .t2, V=t.&#xa2;:, . kl'Zt0 )I O..C I                             Area One                          Area Two                                                                                     AI'!! Four LS41flkJ' r knk Vegetation Shading I Sank Slope Sank Height s~
* I Water Substrate Organic Materl.al Fallen Trees I        Stwps Logs I         Leaves Detritus I  Aquat.ic V~et4tlon t  Water Dept.h Te~rature Sa~led cq~;-~
Cun-ent I  Genera I Descript.lon of \oIat.en I
I I
I I
                   . --~.--- - ~--           - .--  .. . ... ..

Enclosure to NL-13-1528 SNC Letter to U. S. Fish and Wildlife Service, Dated November 10,2006 Enclosure to NL-13-1528 SNC Letter to U. S. Fish and Wildlife Service, Dated November 10, 2006 PIELD DATA RECORD
                                                                                                         ~7Ir~~:,o )
oolte:         rjzc /90:                Field Hueber: _ _      .=El~"~K. . ;. .'.:. .(C(. .; . .:. .9!.-r. . ;. :.L.JIt~_ _~_ _ _ _ __
TI.e:     It !07~.       I ,,' 2"2.. Ca..,uter File Nuaber: _ _ _ _ _, -_ _-;--_ _ _ _ _ _ _ _ __
Collector(s):        -Z.         ICe kIll  I t(, n"{I   I
                                                                   /t(4@evA
                                                                                              /
({nal.
Lat.                             Long.                          Chut _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ __
Locality:      ftl-hunwlw R(Vey , A:a. MIlO,S
  =                                                         Areas Sa.pled
(                           Area One                    Area Two                                                Area Three        Aree Four Time I Bank    Y~.tat1on Shading I  Bank Slope Bank Height I  Wa~.r Subs~rate Organic ~terl.1 Fallen Trees I       StUIliPS Logs I        Leave'S Detritus I  Aquatic Vege~atjon Water Te8Perature I   Depth SaJDpled Current             N~'
I   Genenl
  . Description of W4.ters I
I I
I I

Enclosure to NL-13-1528 SNC Letter to U. S. Fish and Wildlife Service, Dated November 10, 2006
  #a 12-0,na. ;l.ec I
I I

Enclosure to NL-13-1528 SNC Letter to U. S. Fish and Wildlife Service, Dated November 10, 2006
                              /'\1 \.IlK- cLT ::J. ~ ~                                 C ~ _~:?--, . ./
oG ~ hv-k'V't Ga.\,(~ (dATA RECORD Sa.m-e.. t.t5 Alta.aha River              S~
(   FP ~(: (~ ~}I ~ / 0 1 g)
Date~
flu.iyE'                            Field NIlMel":  _-..,;::.-&#xa3;.:......:f/(:...:...:...'(.:~. .I;l: :. .;B.:. :. .'/:. . .6_ - - : -_ _ _ _ __
9i.f.f 'LI
                             -   9 .3   ~ a J      .
Tille:
Collector(s):       m 0 cmtr 11r
                       "';;ij -
(l ..,
I/                                                C y COIipUUl" File HUllber: _ " , . ; - . - , . . . _ - - - - - - - - - - - - -
1()                                     I r~
                                                            ~l...L.I..tt'l~JL--~,II\:l.:l...-~t:gcS:f~-L------------
Lat. _ _-T"",,--:,,_ _-r-long. _.....,...._ _ _~~_ Chart _ _ _ _ _ _ _ _ _ _ _ _ _ _ __
Localtty:      if/'
ttNlmp              I fLp    /J IV' K    __ 'YY)
                                                      " -'         ~M
                                                                   !::t:1S_                          ___ 'I_
109.
                                                                    ;Z     Cr: I/U:,tc., ~-
Are.s Sepl"
                                                                  '--~~'20' Are! One                          Area TWo                                                             Area Three                Area FOUl" TfIlMl                          L..:~ /W1ln '                  LfC) mUll Sank Ve<:jet4tlon             !!I;~
Shading                                                              A/ C>'t'\..L..
Bank Slope Sank Height I   Water Substrate Organic ~~ter1al Fallen Trees                                            "AIt;tkkp s
I         Stumps Logs I         Detritus t   Aouatic YegetAtlon Water Temperature Depth Saaapled Current l    ~~n~ra  l Oescr ; ption of Waters I
f I
I' 3)
I
                                                                                       -~~ .-.-                                     ... - -   ---    ---.- -.. --. ---~

Enclosure to NL-13-1528 SNC Letter to U. S. Fish and Wildlife Service, Dated November 10, 2006
                                           'JVI~       IoU.".....,.
84 y - ~Tlli ~
ot5~ t3a.~
Species Oba.n"                         Alive                $bells                                Altve Shells Altv. $bells Elltptio hopetonensts Wtptl0 dal"'iensh jillptl0 $hepardtana Elltptl0 spinosa Eillptfo leterlna Elltptl0 productl Un1oW.el"s species Anodonta qlbbosa          .
  . AnodonU bbec:1Ilh Toxolas.. pullus La_ps f \ is do labrlefo.,..is .                                      ?li!!J_
Laapsflfs splendida                                                    X2?__ _
Vi liaS! de l!l!!bfs 1!..!.!J!1!. yf belS TOTAL
                                        ~                                 }49 I                      ) I.( J;w,/~ .                                        l4,s-klcL.
l                                                                          ~c-o'J              It.;
I I                  bUA../,( sJ~
                                                                            &#xa3; I Cf4!.- J..."
                                                         \                    ~-' b",----..,.d t                                                          1,
                                                                                 <)~f. ~
I la     IZ-Oata. Rei:
                                                            \I
_~/c41                                                      C, oi    Ne   t-   ~c./I.Ilc~
I I
                                                              ~        1,. .e... ~          {C( &#xa3;3>
           -_~-" r,i... 't
                                                                                      .0\
                                                    ~5~
I                         !"\
v . ..,.
I?-';"
                                           "11 ....
3'+
I

Enclosure to NL-13-1528 SNC Letter to U. S. Fish and Wildlife Service, Dated November 10,2006 A/~ Rive,. MUlSel Survey                                              December 2. 1998 LAW p,.ojecl 12000-8-0178 APPENDIXB Altamaha River Freshwater Mussel Collections
\
1993 and 1998 I
f I
I I
                               , ~.,~
                                    -- - - -~ -- - -- --.-~.- ~~-    - -   - ------ - - -- - - 

Enclosure to NL-13-1528 SNC Letter to U. S. Fish and Wildlife Service, Dated November 10, 2006 AHamaha River Mussel Survey LAWProject 12000-8-0178 December 1, 1998 Table B.1: Summary of Freshwater Mussels Collected from the Altamaha River near Plant Hatch, Appling and Toombs County, Georgia, September 25-26, 1998*
                                                                          . Location/River MUe 1IRM 122   21RM 121.9  31RM118.1 4IRM 117.8 5lRM 117.6 6IRM 117.3 7IRM 116.9 S~ecies      Live Shells Live Shells live SheDs live Shells Live SheDs Live SheDs live Shells Elliptio hopetonensis     64    19     0    0      16     0       1     0       6   0     11     0     1    0 Elliptio darien sis       66     2     1    0       3     0       0     0       4    0    11     0     1    0 Elliptio shepardiana      31 . 1       1    0      10     0       0     0       5   0     11     1     5    0
              . ElJiptio spinosa           0     0     0    0      0      0       0     0       0    0     0     0     0    0 Elliptio icterina        137    0     46    2      4      0       0     0      31    0     0     0     1    0 Unlomerus carolinian us    0    0      1    0      0      0       0     0       2    0     0     0     0    0 Alasmidonla arcula         0    0      0    0      0      0       0     0       0    0     0     0     0    0 Pyganodon gibbosa          0    0      0    0      0      0       0     0       0   0      0     0     0    0 II UNerbackia Imbecillis      0    0      8    1      0      0       0     0       0    0     0     0     0    0 Lampsilis dolabraeformis  12     1     0    0      1      1       0     0       0    0     0     0     1    1 LampsUis splendida         1    0     12   14      5      1       0     0      47    3     4     0    10    0 Villosa de/umbis           0    0    .1     0      1      0       0     0       1   0      0     0     1    0 Total Number             311   23     70   17     40      2       1     0      96    3    37     1    20    1 Effort (hours)             2          1..3        1.3             1           1.3         1.3        0.75 CPE (No.per hour effort) 156 11 .5   53.8 13.1   30.8    1.5      1     0    73.8 2.3 28.5 0.8 26.7 1.3 Prepared by: RGK 10/18198 Checked by: CWW 10130/98 .
Page 1 of 3

  - Enclosure to NL-13-1528 SNC Letter to U. S. Fish and Wildlife Service, Dated November 10, 2006 Altamaha River Mussel Survey                                                                                                            December 1. 199B LAWProjecI12000-8-0178 Table B.1: Summary of Freshwater Mussels Collected from the Altamaha River near Plant Hatch, Appling and Toombs County, Georgia, September 25-26,1998.
LocalionlRiver Mile S/RM 116.5   9IRM 116.4 10IRM 116.4 11IRM 116.4 12IRM 115.4      13IRM 115.4 14IRM 115.4 15IRM 115.1 Species     Live Shells  Live Shels Uve Shefts Live Shells Live Shels        Live Shels  Live Shens Live Shells Elliptio hopelonensis    10    0    . 12    0      5      2     12     0       0    15     2     0    64    0      0    10 Elliptio dariensis        2    0      13    0      1     0.5    12     0       0    20     2     0    28    0      0     9 i
Elliptio shepardiana      5    0       3    0      0      0      0     0       b     0     4     0     8    0      0     0 j                   Elliplio spinosa          0    0       0    0      0      0      0     0       0     0     0     0     0    0      0     0 1
Elliptio ieterina         0    0       3    0      0      0      0     0       0     0     2     0     0    0      0     0 Uniomerus caro/inlanus     0    0       0    0      0      6      0     1       0     0     0     0     0    0      0     0 I                  A/asmidonta arcu/a Pyganodon gibbosa Utterbackia Imbecillis 0
0 0
0 0
0 0
0 0
0 0
0 0
0 0
0 0
0 0
0 0
0 0
0 0
0 0
0 0
0 1
0 0
0 0
0 0
0 0
0 0
0 0
0 0    0 0
0 I                  Lampsilis dolabraeformis Lampsilis splendida 9
4 0
0 10 1
0 1
2 1
                                                                             .1 0
2 0
0 0
0 0
1 1
11 20 7
1 57 2
0 0
2 0
3 0
I                   Vil/osa delumbis Total Number 0
30 0
0 0
42 0
1 1
10 0
3.5   26 0     0 1
0 0
0 37 0
42 0
8 0
159 0
0 0
2 0
22 Effort (hours)           0.75           2           1             1             2           2           2           1 CPE (No.per hour effort) 40.0 0.0     21.0 0.5    10.0    3.5 26.0 1.0         0.0   8.0  21 .0 8.0   79.5 0.0     2.0 22.0 Prepared by: RGK 10/18198 Checked by: CINW 10/30/98 Page 2 of 3

Enclosure to NL-13-1528 SNC Letter to U. S. Fish and Wildlife Service, Dated November 10, 2006 AI/amaha River Mussel Survey                                                                                                                December 1. 1998 LA W Project 12000-8-0178 Table B.1: Summary of Freshwater Mussels Collected from the Altamaha River near Plant Hatch, Appling and Toombs County, Georgia, September 25*26,1998.
Location/River Mile 16/RM 114.7 17IRM 114.5 18IRM 113.8 19IRM 113.7 20IRM 110.5       21/RM 110.5 221RM 109.9 23JRM 109 . ~
Species      Live SheDs Live Shells Uve Shells live Shells Live Shells         Uve SheDs live SheWs    Live Shells Elliptio hope/onensis      0    0      0     0     11      0      0      1      22     0     0     0     0    0     105   1 Ellipfio darien sis        0    0      0    0       4      0      0      0       2     0     0     0     0    0      9    0 Elllplio sheperdiana       2    0      0    0       5      0      0      0       15    0     0     0     0    0      7    0 Elliptio spinosa           0    0      0    0       0      0      0      0       0     0     0     0     0    0      1    0 Elliptio ic/erina          2    0      0    0       1     0       0      0       0     0     0     0     0    0      5    0 Uniomerus carolinianus    0     0      1    0       1     0       0      0       0     0     1     0     0    0      0    0 Aiasmidon/a arcula        0     0      0    0       0     0       0      0       0     0     0     0     0    0      1    0 Pyganodon gibbosa         0     0      1    0       0     0       0      0       0     0     0     0     3
* 0      0    0 Utferbackia imbeci/lis    0     0      2    0       0     0       0      0       0     0     4     0     4    0      1    0 Lampsilis dolabraeformis  2     0      0    0       0     0       1      0      11     0     0     0     0    0     17    0 Lampsilis splendida        2     1     4     ()     45     1       0      0       5     0    10     0    17    0      3    0 Villosa delumbis          0     0      0    0       0     0       0      0       0     0     0     0     0    0      0    0 Total Number               8     1     8     0      67     1       1      1      55     0    15     0    24    0    149    1 Effort (hours)             1          0.75         1.33          0.75           0.75        0.75          1           2 CPE (No.per hour effort)  8.0   1.0 10.7 0.0       50.4   ~ 1.3          1.3 73.3 0.0       20.0 0.0 24.0 0.0       74.5  0.5 Prepared by: RGK 10/18/98 Checked by: CWIN 10130198 Page 3 of3 II1II-

Enclosure to NL-13-1528 SNC Letter to U. S. Fish and Wildlife Service, Dated November 10,2006 Altamaha River Mussel Survey                                                                                                             December " 1998 LAW Project 12000-8-0178 Table B.2: Summary of Freshwater Mussels Collected from the Altamaha River near Ptant Hatch, AppIJng and Toombs County, Georgia, July,1993 LocationIRiver Mile 1IRM 122     2JRM 121.9     3/RM 118.1 o4IRM 117.8 5IRM 117.6 6IRM 117.3 7IRM 116.9 Species(1)        Live Shells   Live Shels      Live Shels Live Shells Live SheDs Live SheDs Live Shells Elliptio hopetonensis        301     0        2      3     Not              1      0  89     2      4    2    Not Elliptio darienSJs            36     0        1      0    Sampled in        0      0   2     0      2    0 Sampled in Elliptio shepardiana          31     0        0      0    1993 by Dr.       0      0   7     0      2    0 1993 by Dr.
Elliptio spinosa               0     0        0      0    Keter!            0      0   0     0      0    0 Keterl Elliptio icterina             63     0        0      2                      0      0  10     0      0    0 0      0   2     0      0    0 j                       Uniomerus carolinianus Alasmidonta arcula 0
1 0
0 0
0 2
0                      0      0  15     0      1    0 0    0 I                       Pyganodon gibbosa Utteroackia imbecillis 0
0 0
0 0
0      4 0                      0 0
0 0
0 0
0 0      0    0 j                       Lampsilis do/abraeformis Lampsilis splendida 54 .
7 0
0 11 9      2 2                      1 0
0 0
3 60 0
5 4
1 0
0 j                       Villosa delumbis Total Number 0
493 0
0 0
23 0
15 0
2 0
0 0
188 0
7 0
14 0
2 Effort (hours)                2             0.7                          0.42        0.85          0.5 CPE (No.per hour effort)    246.5 0.0     32.9 21.4           _ _ 4.8          ~O    221    8.2   28.0  4.0            I Note: (1) Species Ust excludes two unidentifed Elliptio specimens.                        Prepared by: RGK10/18/98 Checked by: CWW 10130/9a Page 1 of 3 l1li

Enclosure to NL-13-1528 SNC Letter to U. S. Fish and Wildlife Service, Dated November 10, 2006 Altamaha River Mussel Survey                                                                                                                  December 1. 1998 LAW Project '12000-8-0178 Table B.2: Summary ot Freshwater Mussels Collected trom the Altamaha River near Plant Hatch, Appling and Toombs County, Georgia, July, 1993.
LocationlRiver Mile 8IRM 116.5     9IRM 116.4 10IRM 116.4 11IRM 115.4 12JRM 115.4 13IRM 115.1        14IRM 114.7 Species(l)         Live Shells   Live Shells LIve Shells live Shells Live Shells Live Shells         Live Shells Elliptio hopetonensis         Not          Not               16    30      Not         26    11     Not         Not Elliptio dariensis           Sampled in    Sampled in       40     20 Sampled in        4     1   Sampled In   Sampled in Elliptio sheparciiane        1993 by Dr. 1993 by Dr.       1      7 1993 by Dr.      16 ' 0     1993 by Dr. 1993 by Dr.
Elliptio spinosa             Keferl        Keferl            1      1    Keferl         0     0   Keferl       Keferl Elliptio ictedne                                             0      1                   1     0 Uniomerus carolinienus                                       0      0                   l'    0 Alasmidonta arcula                                           0      0                   0     0 Pyganodon gibbosa                                            0      0                  0      0 Ulterbackia imbecillis                                       0      0                  0      0 Lempsi/is dolabraeformis                                    31      4                  17    15 Lampsilis splendida                                          2      1                  14     1 Villosa delumbis                                             0      0                   1     0 Total Number                                                91     64                 80     28 Effort (hours)                                              1.3                      1.58
                                                                                                                                                . I CPE (No.per hour effort)               -
70.0 49.2                .50.6 17.7 Note: (1) Species fist excludes two unidentifed Elliptio specimens.                        Prepared by: RGK 10118198 Checked by: CWW 10130/98 ,
Page 2 of3

Enclosure to NL-13-1528 SNC Letter to U. S. Fish and Wildlife Service , Dated November 10, 2006 Altamaha River Mussel Survey                                                                                                                 December 1,. 1998 LAW Project 12000-8-0178 Table B.2: Summary of Freshwater Mussels Collected from the A1tamaha River near Plant Hatch, Appling and Toombs County, Georgia, July, 1993.
LocationIRiver MUe 15IRM 114.5 161RM 113.8 17IRM 113.7 1B1RM 110.5 19IRM 110.5 20IRM 109.5 21IRM 109.9 Specles(1)       Live  Shens Live Shells Live         Shells Live    Shells Live Shells Live   Shells Live Shens Efliptio hopetonensis         0     0       0       0      42      27     39      0     22     0     12     0     Not Elliptio dariensis            0     0       1       0       6      0       2      0      3     0      3     0    Sampled In Elliptio shepard/ana          0     0       0       0      11      0      14      0      5     0      8     0    1993 by Dr.
Eli/plio spinosa              0     0       0       0       0      3       0      0      3     0      0     0    Kefell Elliptlo /cterina             0     0       0       0       1      0       0      0      0     0      0     0 Uniomarus carolin/enus        4     0       0    ' 0        2      1       0      0      0     0      0     0 A/asm/donta arcula            0     0       0      0        0      0       1      0      0     0      3     0 Pyganodon gibbosa             5     0       2       0       3      3       0      0      4     0      3     1 U/terbacJda imbecillis        4     0       3       0       3     15       0      0      4     0      0     0 Lampsi/is dolabraeformls      0     0       0      0        4     13       2      0      8     0     6      0 Lampsilis splendida           8     0      20      0       12     18      30      0     15     0      2     0 Villoss de/umbis              0     0       0      0        0      0       0      0      0     0     0      0 Tcital Number                21     0      26      0       84     80      88      0     64     0     37     1 Effort (hours)              0.3           1.33            0.42           0.33          1.42         0.25 CPE(No.perhoureffort)       70     0.0   22.6 0.8        200.0 190.4 266.7       0.0   45.0   0.0  148.0   5.0 Note: (1) Species fist exdudes two unidentifed Elliptio specimens.                           Prepared by: RGK 10/18198 Checked by: CWW 10/30/98 Page 3 of3 II1II.........}}