ML19308E063
| ML19308E063 | |
| Person / Time | |
|---|---|
| Site: | Crystal River  |
| Issue date: | 03/23/1978 |
| From: | Richard Bright FLORIDA POWER CORP. |
| To: | Nelson C NRC OFFICE OF INSPECTION & ENFORCEMENT (IE) |
| References | |
| NUDOCS 8003200795 | |
| Download: ML19308E063 (17) | |
Text
{{#Wiki_filter:f> k Of Y i a 4 REGULATORY INFORMATION DISTRIBUTION SYSTEM (RIDS) QISTRIBUTION FOR INCOMING MATERIAL 50-302 1 b REC: NELSON C ORG: BRIGHT R M DOCDATE: 03/23/78 NRC FL PWR DATE RC'JD: 04/03/78 00CTYPE: LETTER NOTARIZED: NO COPIES RECEIVED
SUBJECT:
LTR 1 ENCL 1 FORWARDING APPLICANT"S RESPONSE TO U.S. EPA 01/09/78 LTR CONCERNING DRAFT i MPDES PERMIT NO FL0000159 - REVISION TO STUDY PLAN AND COPY OF THE BENTHIC l COMMUNITY STRUCTURE AND BENTHIC METABOLISM IN DISCHARGE AREA PROGRAMS PER DR. TOM CAIN"S REQUEST...W/ ENCL PLANT NAME: CRYSTAL RIVER #3 REVIEWER INITIAL: XJM DISTRIBUTOR INITIAL:94tl
- DISTRIBUTION OF THIS MATERIAL IS AS FOLLOWS ******************
ANNUAL ENVIRONMENTAL RPTS (OL STAGE). ~ (DISTRIBUTION CODE A007) FOR ACTION: BR CHIEF oFTn**W/7 ENCL INTERNAL: 6EG FILE **W/ENr NRC POR**W/ ENCL GRIMES **W/ ENCL BALLARD**W/ ENCL J. COLLINS **W/ ENCL KREGER**W/ ENCL KASTNER**W/ ENCL EXTERNAL: LPDR'S CRYSTAL RIVER, FL**W/ ENCL TIC **W/ ENCL NSIC**W/ ENCL ACRS CAT B**W/ ENCL DISTRIBUTION: LTR 20 ENCL 20 CONTROL NBR: 6vy40vsv ~ r SIZE: 1P+2P+13P S}lID
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~.. .a March 23, 1978 T.y Ed 'N fi Mr. Chris Nelson 1 Project Manager t it.' ' ' b W, 0 Office of Nuclear Reactor Regulatikvvh60 U.S. Nuclear Regulatory Commission Washington, DC 20555
Dear Chris,
Attached is the Florida Power Corporation response to Mr. Howard Zeller's January 9 letter and a copy of the Benthic Community Structure and Benthic Metabolism in Discharge Area Programs per Dr. Tom Cain's request. In reviewing the operational programs vis-a-vis the preoperational programs, the number, frequency, and locations of sampling are similar except that no samples are being taken in the middle bay per ETS. A Technical Specifica-tion Change Request was submitted on July 21, 1977, which, in part, would have brought the zooplankton study into the middle bay but this has not yet been approved. If you have any further questions, please do not hesitate to contact me. Sincerely, FLORIDA POWER CORPORATION Ronald M. Bright Nuclear Support Specialist Attachment RMB: hic 4/4 % r4003 P General Office 3201 in.rty.tourtn street soutn. P O. Box 14o42. St Petersburg. Florida 33733 e 813-866-5151
~ a-.,..,-,- . ;, 1....,O'i Florida go _ 3 E P.o.,,w.. er February 22, 1978 E,., Z ..[w~:c; Mr. Howard D. Zeller Deputy Directcr Enforcement Division U.S. Environmental Protection Agency 345 Courtland Street Atlanta, Georgia 30308
Subject:
Crystal River Plant Draft NPDES Pennit No. FL0000159 Revision to Study Plan
Dear Mr. Zeller:
Reference is made to your January 9,1978 letter which requested additions to our present monitoring program at the subject facility. We have reviewed your request with reference to part III G and part III H of the draft pennit and the preoperational studies conducted by the University of Florida. The benthic portion of the aforementioned preoperational studies can be subdivided into three basic areas: 1. benthic faunal studies, a) inner bay only; 2. benthic macrophyte studies, a) inner, b) middle, and, c) outer bays; 3. sediment studies, a) inner, b) middle and c) outer bays. The study plan Florida Power Corporation (FPC) submitted to you on December 7,1977 included sections which reproduce, as well as possible, items 1 (a), 2 a) (inner bay only) and 3 a), b) and c) above. The only portion of the benthic preoperational studies not addressed in our study plan submitted to you is item 2 b) and c) (middle and outer bays) above. FPC is therefore submitting the attached monitoring program additions in response to your January 9,1978 letter. f ( ~ General Office 320s in.riv.tourm street soum. P O Bon 14042. st Petersburg. F!orida 33733 e 813 866 5151
3 ~ ~ Page 2 February 22, 1978 Mr. Howard Zeller Our review, in addition to a discussion between Dr. David Voigts and Mr. Lee Tebo on February 16, 1978, indicate that the proposed program additions are adequate to provide EPA with a monitoring program as required by part III G of the subject permit. Please let us know if these additions are acceptable so that we can pro-ceed with plans to implement these program modifications. Sincerely, )',I, n ,.m f jt 6 t.n m u,,! .) h. M N - v-Wi111am 5. O'Brien Director WSO/bz Environmental & Licensing Affai - Attachment cc: Mr. L. Tebo, Jr., EPA Mr. William A. Thomas, FDER Mr. Voss Moore, NRC ')[ I. d 6
~ 1 ,m o ADDENDUM - BIOLOGICAL STUDIES BENTHIC COMMUNITY STRUCTURE The studies listed below will be conducted as additions to: FPC study plan, Crystal River, Biological Studies, Benthic Community Structure. A. On a quarterly basis, divers shall check the general condition and percent cover of the macrophytes (sea-grasses to species, macroalgae to phylum or genus if possible) of the middle and outer bays. These deter-2 minations shall be made, using a m quadrat (five replicates), at 0.50 km intervals along the radials indicated on figure Bl. These data, in addition'to their intrinsic value, will be used to " ground truth" the aerial photographs (see B below). B. Aerial photographs will be taken annually during the period of peak vegetational coverage. These photo-graphs will be taken at both discharge and control areas. rm-
s .o Figure B1 - Location of macrophyte transects; study as presented to EPA on December 7, 1977 ( 1 A ), and proposed additional transects (O C).
R I. BENTHIC METABOLISM IN DISCHARGE AREA A. Objective To determine the ecological condition of the benthic system in the area directly affecced by the thermal plume. ~ B. Techniques Previous studies have indicated that production in the inner, shallow bays adjacent to the Florida Power Corporation Crystal River Power Plant is dominated by the benthic community while production in the outer bays is plankton dominated. The proposed studies will suggest changes which may occur in the inner, benthic dominated communities. Two methods will be used to monitor community metabolism of the benthos in the vicinity of the Crystal River Power Plant: 1. The whole water nethod for determining total community metabolism (metabolism of both 'the water column and benthos) in the. designated areas will involve measuring the following parameters at four hour intervals. a. Dissolved Oxygen, Winkler method, b. Water depth, Light penetration, secchi disk at all stations, calibrated c. at one station by a photometer, d. Current velocity, e. Temperature, f.
- Salinity, g.
Wind speed, from FPC meteorological station.
. m. c. The parameters will be synthesized to'show changes in percent saturation of 02 to yield' production and respiration. The whole water metabolism method involves duplicat'e 02 concentration determinations at four hour intervals. These 02 determinations will be made at three stations within each of the four areas (Fig.1). The other parameters.(water depth, light penetration, current velocity, temperature, wind velocity, and salinity) will also be determined at concurrent four hour intervals. All 12 stations (three stations in each of the four areas) will be done twice per quarter within a one-week period, concurrently for 24 hours. An alternate method incorporating the metabolism buoy (Gunderson and Merriam 1974) may be used. Use of this method will involve only one 24 hour survey per quarter, using the Winkler method as described above. If usedi. the metabolism buoy will measure. total metabolism ' (productivity and respiration) of the benthic community as well as l the overlying water mass. The metabolism buoy will remain on station (the same four sites which were chosen for the Winkler method; Fig.1), for four day intervals of continuous monitoring. After each interval it will be moved to the next site of a consistent rotation. Therefore, one sampling period will last 20 days. 2. The light-dark bottle method shall be used to estimate productivity and respiration of the overlying water column in the same areas that the whole water metabolism method is used (Fig.1). Water column metabolism will be monitored twice quarterly at times which coincide to those used for total metabolism. C. Reporting The results of. each quarter will be delivered to Florida Power Corporation two weeks before the next quarterly sampling begins..1
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II. MARSH GRASS METABOLISM A. Objective -To determine the ecological condition of the salt marsh adjacent to the discharge area. B. Techniques 1. Productivity Estimates of productivity of the marsh grasses Spartina alternif ora and Juncus roemarianus will be obtained by harvest-ing quadrats and use of the "CO2 Sniffer" (Y ung 1974). Grasses will be harvested from a total of two (one in each grass type) permanently marked areas in the discharge marsh (Fig. 1). Using a quadrat-size of o.25 m2, it has been shown that nine replicates in Spartina and five replicates in Juncus are adequate. The follow-ing will be notad in each quadrat:
- a. Number of live stems,
- b. Number of dead stems,
- c. Number of flowering plants,
- d. Number of stems in arbitrary size classes (20 cm Spartina and 25 cm Juncus).
2. Respiration Respiration of the salt marsh will be monitored with the environmental chamber for CO2 monitoring (CO2 Sniffer) in the same areas that productivity is determined. 3. Standing Crop The standing crops of marsh grasses will be determined utiliz-ing the material harvested from the productivity quadrats. Both wet and dry'veights (dried to constant weight at 700C) will be dete rmined. r==--. u
m 4. Marsh Invertebrates Populations of the invertebrates Uca sp. and Littorina irrorata will be monitored by counting the number of snails 'per quadrat, and the number of crab holes per quadrat as the grasses are harvested. C. Reporting The results of each quarter will be due two weeks before the next quarter sampling begins. III. CANALS AND OUTER RAY METABOLISM A. Obfactive To detect changes which may occur in the canal and outer bay systems due to Crystal River #3 operation. If significant changes occur they will be used to indicate areas needing further investigation. B. Techniques 1. Canals Oxygen concentration (c'ree replicates), salinity and tempera-ture shall be determined at the point of discharge and point of intake at bi-weekly intervals. These determinations shall be made one hour after dawn and one hour before dusk. 2. Outer Bay Oxygen concentration (three repli' cates), salinity and tempera-ture shall be determined in the outer bay (Fig.1). These deter- .minations shall be made one hour after dawn and one hour befora dusk on consecutive days twice mor.thly. Oxygen measurements for the canals (III, B, 1) and outer bay shall be done concurrently. C. Reporting .Results of this survey shall be reported, as percent saturation of oxygen-at each station, to Florida Power Corporation at monthly intervals. -
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Figure 1. Location of metabolism stations in the vicinity of the Crystal River Power Plant; discharge marsh - outlined by. irregulcr triangle, total metabolism stations - ( ), outer bay oxygen station - (d). 1 i I l l-l
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m, e REFERENCES CITED Cunderson, L., and A. Merriam. 1974. Monitoring future trends and onset of additional plumes with a metabolism buoy. IN Florida Power Corporation, Crystal River Power Plant Environmental Consideration, final report to the Interagency Research Advisory Connaittee. Vol II, pp. 109-116. Young, D. L. 1974. Studies of Florida Culf Coast Salt Marshes receiving thermal discharges. H Florida Power Corporation, Crystal River Power Plant Environmental Considerations, final report to the Interagency Research Advisory Conmittee. Vol II, pp. 140-158. e o e
X ~ ADDENDUM METABOLISM STUDIES i The stations listed below will be monitored as " control" stations during l the operational studies. These stations are f.s areas which were included ~ in the pre-operational work and will therefore suggest " natural" changes which may have occurred since the pre-operational studies. c The ~ type of sample to be taken at each of the " control" stations is listed below. The number in parenthesis behind each description of sample type indi-cates the section of the scope of work where methods and replicates can be i found. MARSH GRASS METABOLISM + The productivity (II, B,1), respiration- (II, B, 2), standing crop (II, B, 3), and marsh invertebrate populations (II, B, 4) will be monitored in the " control" I marsh shown in Figure A1. I I 'l f I i k k ,--eg, .n,-, ,,c, - - -w. g,~- -a- -e 4
m, a - l 1 l 4 Figure Al - The " control" marsh is located within the irregular outline indicated by arrow. k
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