AECM-88-0090, 1987 Annual Environ Operating Rept
| ML20151X902 | |
| Person / Time | |
|---|---|
| Site: | Grand Gulf  |
| Issue date: | 12/31/1987 |
| From: | Kingsley O SYSTEM ENERGY RESOURCES, INC. |
| To: | NRC OFFICE OF ADMINISTRATION & RESOURCES MANAGEMENT (ARM) |
| References | |
| AECM-88-0090, AECM-88-90, NUDOCS 8805040284 | |
| Download: ML20151X902 (151) | |
Text
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- 4 SYSTEM ENERGY l RESOURCES, INC.
1 i GRAND GULF NUCLEAR STATION !
1987 ANNUAL ENVIRONMFNTAL OPERATING REPORT ;
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., PREFACE The Annual Environmental Operating Report (AEOR) presents the information and data obtained from the implementation of Grand Gulf Nuclear Station's (GGNS) Environmental Protection Plan (EPP), Appendix B to the GGNS Operating License (NPF-29),
for the period January 1-through December 91, 1987. Historical information has also been included, where applicable, .for comparison purposes.
The GGNS EPP requires monitoring for potential erosion along transmission line corridors and impact of coolina tower drift on vegetation. These are the only terrestrial issues required to be addressed by the GGNS EPP.
No aquatic issues were identified in the GGNS Final Environmental Statement. Consequently, none are addressed by the OGNS EPP. Effluent limitations and monitoring requirements for aquatic matters are contained in the GGNS National Pallutant Discharge Elimination System Permit issued by the Mississippi Department of Natural Resources (MDNR) . The MDNR regulates matters involving water quality and aquatic biota.
In addition to the required terrestrial issues, the AEOR also addresses environmental issues which are not within the scope of the EPP. This is done to provide a more comprehensive report for the Environmental Surveillance Program and to keep the Nuclear Regulatory Commission informed of envi Onmental activities at GGNS.
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TABLE OF CONTENTS
, PAGE PREFACE.................................................... ii LIST OF FIGURES............................................ iv LIST OF TABLES............................................. v LIST OF APPENDICES......................................... vi
.SECTION TOPIC 1.0 YNTRODUCTION..................................... 1-1 1.1 Impact Assessment and Summary..............., 1-1 1.2 GGNS Site Characteristics................... 1-2 2.0 . ENVIRONMENTAL SURVEILLANCE ACTIVITIES............ 2-1 2.1 Smoke Control.............................. 2-1 2.2 Erosion Control............................ 2-1 2.3 Transmission Line Surveys................... 2-2 2.4- Chemical and Solid Waste Management......... 2-3 2.5 Land Management and Wildlife................ 2-4 2.6 Groundwater Monitoring. .................... 2-5 2.7 NPDES Permit................................ 2-6 2.8 Thermal Monitoring Program................. 2-7 2.9 Cooling Tower Drift Program................. 2-8 2.10 Meteorological System....................... 2-11 2.11 Environmental Evaluations................... 2-12 3.0 OBSERVATIONS AND DISCUSSIONS..................... 3-1 3.1 Smoke Control.............................. 3-1 3.2 Erosion Control............................ 3-1 3.3 Transmission Line Surveys (1987)............ 3-2 3.4 Chemical and So. lid Waste Management......... 3-3 3.5 Land Management and Wildlife................ 3-5 3.6 Groundwater................................ 3-5 3.7 IIPDES....................................... 3-6 3.8 Thermal Monitoring......................... 3-7 3.9 Cooling Tower Drift......................... 3-7 3.10 Meteorological Data........................ 3-8 3.11 Environmental Evaluations.................. 3-8 4.0 ADMINISTRATIVE REQUIREMENTS..................... 4-1 4.1 EPP Changes................................ 4-1 4.2 EPP Non-Compliances......................... 4-1 4.3 Non-Routine Reports........................ 4-1 4.4 Potentially Significant Unreviewed Environmental Issues............ ...... ... 4-2 J20RPT870224 - iii
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LIST OF FIGURES FIGURE NUMBFR PAGE 1-1 General Area Map........................... 1-5 1-2 Property Boundary.......................... 1-6 2-1 Local Drainage Basins...................... 2-18 '
2-2 Transmission Line Routes................... 2-19 2-3 Regional Groundwater Well Locations........ 2-20 2-4 Location of Construction Dewatering and' Observation Wells (Perched)................. 2-21 2-5 Salt Deposition' Station Locations.......... .
2-22 2-6 Salt Deposition Control Locations.......... 2-23 i
t 2-7 Meteorological System Location..............'2-24 l 3-1 Burn Pit Opacity ( 1987).................... 3-26 ,
3-27 i 3-2 Regional Well Hydrographs..................
3-3 Perched Well Hydrographs................... 3-30 W
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i LIST OF TABLES
' TABLE NUMBER PAGE ,
2-1 Regional Groundwater Well Locations In-Figure 2-3.............................. 2-15 ,
2-2 Perched Groundwater Well Locations In Figure 2-4.............................. 2-16 2-3 Salt Deposition Station Locations I n Fi gu re s 2 - 5 and 2 - si . . . . . . . . . . . . . . . . . . . . . 2 - 17 3-1 Burn Pit Opacity........................... 3-10 3-2 1987 TSS Analysis Results, '
Sedimentation Basins A & B................. 3-11 3-3 1987 Regional Groundwater Monitoring.
Data....................................... 3-12 3-4 1987 Regional Groundwater Monitoring Summary.................................... 3-13 3-5 1987 Perched Groundwater Monitoring Data....................................... 3-14 3-6 1987 Precipitation Measurement, Grand Gulf Nuclear Station................. 3-15 <
3-7 Salt Deposition ( 1987)..................... 3-16 3-8 1987' Salt Deposition Rainfall Data......... 3-21 3-9 1987 Joint Frequency Distribution, 50 Meter Level ............................ 3-22 0-10 1987 Joint Frequency Distribution, 10 Meter Level ............................ 3~23 3-11 1987 Percent Bad Data Report .............. 3-24 3-12 1987 Environmental Evaluation Summary...... 3-2S f
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L LIST OF APPENDICES i APPENDIX' NUMBER PAGE I Semiannual Transmission Line !
Surveys.................................
I-i II Thermal Monitoring Summary.............. II-i i
III. Salt Deposition Statistical. Analysis.... III-i -
- IV Environmental Evaluations............... 'IV-i' ;
r V Non-Routine Report...................... V-i t
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SECTION
1.0 INTRODUCTION
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INTRODUCTION r Grand Gulf Nuclear Station (CGNS) is a nuclear power station operated by System Energy Resources, Inc. (SERI),
formerly Middle South Energy, Inc., and owned by SERI and Southwest Mississippi Electric Power Association (SMEPA). The station consists of one operating boiling water reactor rated at 1250 MWe and a similar unit on which construction has been suspended, 1.1 IMPACT ASSESSMENT AND
SUMMARY
l The environmental impact of GGNS operational activities between January 1 and December 31, 1987 was monitored by the Environmental Surveillance Program (ESP).
The monitoring results of the ESP contained in the following sections indicate the environment was not adversely impacted in 1987 by the operation of GGNS. No harmful effects or evidence of trends toward irreversible damage to the surrounding environment have been observed at GGNS.
The only significant environmental event occurring in 1987 was a fish kill in onsite Sediment Basin B during November. The fish kill was caused by biocide-treated Plant Service Water which was routed to the basin during outage activities. Acute effects were confined to the general area of the basin and no chronic effecta have been observed.
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Overall, surveillance results for 1987 were comparable to those of previous years. Results remained within anticipated ranges and no adverse environmental impact was observed by ESP personnel.
1.2 GGNS SITE CHARACTERISTICS Grand Gulf Nuclear Station is located in Claiborne County, Mississippi, on the east bank of the Mississippi River, approximately 25 miles south of Vicksburg and 37 miles north-northeast of Natchez. Grand Gulf Military Park berders a portion of the north side of the property, and the small community of Grand Gulf is approxirantely one and one-half miles to the north. The town of Port Gibson is about six miles southeast of the site. Two lakes, Gin Lake and Hamilton Lake, are located in the western portion of the site. These lakes were once the channel of the Mississippi River and average about five to seven feet in depth. An area map showing the geographical location of GGNS is provided in Figure 1-1.
Site and Its Environs The site and its environs consist primarily of woodlands divided between two physiographic regions. The western half of the site is in the alluvial plain of the Miscissippi River; the eastern half is in the Loess or Bluff Hills. 7he elevation of the site varies between 60 and 80 feet above Mean Sea Level (MSL) in the alluvial plain region, while the Loess Hills portion varies from 80 to more than 200 feet above MSL.
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The property lir.e shown in Figure 1-2 encompasses the 2300 acres originally purchased. However, due to erosion activity of the Mississippi River along the western boundary of the site, this acreage figure' continually decreased until the river bank from the barge slip to the north boundary of the site was stabilized through the U. S.
Army Corps of Engineers shoreline modification program.
Based on the GGNS Updated Final Safety Analysis Report, the current acreage figure for the site is approximately l-
_2100 acres.
The site boundary is the same as the property line except in the southwest and west-southwest sectors as shown in Figure 1-2. A 2-acre residential property within the southwest sector as privately owned. ,
There are no industrial, commercial, institutional or residential structures within thu site boundary. No railroads or navigable waterways traverse the site. Bald Hill Road, which was formerly Waterloo Road, runs through the GGNS site property. Bald Hill Road cuts through the south-southeast, south, south-southwest, and southwest sectors of the site. Hamilton Lake Road, which was formerly a county road, was closed to public traffic in ,
1986. Hamilton Lake Road traverses the site property in the north, north-northwest, northwest, west-northwest, and
( west sectors.
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<1 Access-The site,a.nea is accessible by two major highways:
U. S. Highway 61 and State Highway 18, which connect Port Gibson- (6 miles southeast 'of the site) with Natchez, Jackson;and Vicksbura.
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PIGURE l-1 GENERAL AREA MAP 1-5
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SECTION 2.0 ENVIRONMENTAL SURVEILLANCE ACTIVITIES l
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i 2.1 ~ SMOKE CONTROL !
Burning at GGNS has been confined to the burn pit ;
l located near the main (northeast) spoils disposal area.
l Burnable-materials such as scrap lumber and paper were :
transported to the burn pit which is approximately 40 feet ;
long, 10 feet wide and 12 feet deep. The pit has vertical ;
- walls of reinforced concrete, with a refractory lining and t
an air curtain destructor apparatus along the top of the
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south wall. Through the use of the air curtain device, combustion of burnable trash was more efficient and smoke levels were routinely kept within the limits set by the Mississippi Air and Water Pollution Control Commission.
Daily (Monday through Friday, except holidays) inspections of the burn pit were made by ESP personnel to ensure compliance with Mississippi air quality regulations. l i
Uncontrolled burning and unauthorized fires were expressly !
prohibited.
, 2.2 EROSION CONTROL i;
Erosion control at GGNS is a priority because of [
s the proximity of GGNS to the Mississippi River, the hilly [
t I terrain, the average annual rainfall of approximately 50 i inches and the loess soils which are extremely susceptible j to erosion. The methods which have been successfully f
utilized to control erosion are:
o Revegetation of disturbed areas ;
2 o Utilization of concrete chutes and flumes which channel runoff into two sediment basins, A and B (Figure 2-1), l l
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- Sedimentation occurs in the basins, which helps to minimize
'the ecological effect on Hamilton Lake and-the Mississippi River.
As a result of Amendment 7 to GGNS Construction Permit ,
Numbers CPPR-118 and 119, dated December 23, 1981, monitoring and capacity requirements for the sedimentation basins were transferred to the GGNS NPDES Permit. ;
Environmental Surveillance Program personnel elected to continue runoff sample collection on a voluntary basis for an additional period of time to gather supplemental data on basin sediment removal. Runoff sampla collection, which was required prior to amending the Construction Permits, was discontinued on January 31, 1985. Monitoring of '
sedimentation basins since January 31, 1985 has been ;
conducted according to the parameters established by the GGNS NPDES Permit.
2.3 TRANSMISSION LINE SURVEYS The four transmission lines associated with GGNS (Figure 2-2) are: -
o Port Gibson Substation Line o Baxter Wilson Steam Electric Station Line o Franklin EHV Substation Line :
o Ray Braswell EHV Substation Line. f i
The 115 kV transmission line from-Port Gibson, Mississippi, ;
supplies construction power and emergency power to GGNS. ;
The 500 kV Baxter Wilson and Franklin transmission lines terminate in Warren and Franklin counties, respectively.
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The Ray Braswell line, a planned 500 kV transmission line, will connect GGNS to an existing 500 kV transmission line in Warren County.
Semiannual aerial surveys of these lines were conducted to observe vegetation growth and monitor erosion.
If problem areas were identified, ground patrols made a closer observation. Recommendations were then made to the Mississippi Power & Light Company (MP&L) Engineering Department for corrective action. Problem areas were monitored during follow-up aerial surveys to determine the effectiveness of the corrective actions.
Techniques designed to minimize erosion have been successfully used to reelear and control vegetation on transmission lines. Highway, surface water and railroad crossings were hand cut, usually leaving buffer strips adjacent to the crossing. The use of heavy equipment in l clearing right-of-ways was limited to piling brush and pushing brush piles. Potential erosion areas were seeded and mulched. Synthetic erosion prevention esterial was utilized when necesaary. The long growing season in the l
area provides er.cellent early root formation which also l
helps prevent damaging erocion.
2.4 CHEMICAL AND SOLID WASTE MANAGEMENT Liquid wastes, such as chemicals, fuels, lubricants, bitumens and flushing solutions, were deposited or dis,harged into tanks and/or containers for salvage or subsequent removal to appropriate offsite locations.
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Adequate care was taken to avoid the handling or storing of liquids in close proximity of major drainage areas to avoid potentially damaging spills to site streams.
Construction scrap and Jebris were collected in designated onsite areas for salvage, incineration or burial. Unusable combustible materials were burned on site in the burn pit. Noncombustible solid wastes were buried in designated landfill areas.
2.5 LAND MANAGEMENT AND WILDLIFE Approximately 2100 acres make up the GGNS site; 94 acres are fenced in the immediate plant area, with an additional 37 acres set aside for pennanent structures.
The remaining acreage provides cxcellent habitat for Mississippi wildlife.
Fringe areas and open fields were normally mowed two 1 times during each growing season to keep open areas from being overtaken by scrub vegetation. After the growing season, a series of small food plots were planted in these open fields to help sustain wildlife populations through the winter and early spring. A small fruit orchard and two gardens were also maintained on site by ESP personnel, i
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Two lakes located on the site, Gin and Hamilton, were used for sport and commercial fishing by area residents.
Utilization of the lakes and surrounding local lands by water dependent species (waterfowl) was seasonal, with most activity occurring during full and winter migrations.
Hunting on site was limited to bow hunting for in-season animals, pursuant to the requirements of Mississippi hunting laws. Other hunting activities were prohibited on the GGNS site.
2.6 GROUNDWATER MONITORING The groundwater monitoring program was continued during 1987 at GGNS to:
o Provide data on the seasonal fluctuation of the ,
regional groundwater table 7 o Monitor the level of the perched groundwater table in the Units 1 and 2 Power Block areas. i Location of Monitoring Wells l
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Twenty-seven wells were used to monitor the regional and perched groundwater underlying GGNS:
o Twelve wells for regional groundwater levels in the site area ,
o Fifteen wells for perched groundwater levels in the Power Block areas.
Locations of monitoring wells are shown in Figures 2-3 and 2-4 and listed in Tables 2-1 and 2-2.
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Regional Groundwater Wells used to monitor the regional groundwater levels (Figure 2-3 and Table 2-1) were normally measured at least twice a month.
Perched Groundwater GGNS Units 1 and 2 have a monitoring and dewatering system (Figure 2-4 and Table 2-2) located around the Power Block and the Standby Service Water Basins to monitor and dewater the underlying perched aquifer. Seven monitoring wells (MW-1 through MW-7) were used to monitor the water levels in the perched aquifer. Eight dewatering wells (DW-1 through DW-8) were in place to dawater the aquifer if water levels approached or exceeded the GGNS design basis elevation of 109 feet mean sea level (MSL). Water levels in perched aquifer wells were observed and recorded once a month.
2.7 NATIONAL POLLUTANT DISCHARGE ELIMINATION SYSTEM (NPDES)
PERMIT National Pollutant Discharge Elimination System (NPDES) Pormit No. MS0029521 was amended and reissued to GGNS on June 1, 1982. The permit was issued in accordance with the provisions of the Mississippi Air and Water Pollution Control Law (Section 49-17-1, Mississippi Code of 1972) and the regulations and standards adopted and J20RPT870224 6
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promulgated thereunder, and authority granted to the Mississippi Pollution Control Permit Board pursuant to ,
Section 402(b) of the Federal Water Pollution Control Act.
The permit as issued in June 1982 consisted of 15 outfalls, but it was revised in May 1984 to add Outfall 016 and combine Outfalls 008 and 009 into Outfall 007.
The permit allows GGHS to discharge wastewater, in accordance with NPDES regulations, into Hamilton Lake and the Mississippi River. NPDES reporting requirements are established by the State of Mississippi. Monthly Discharge Monitoring Reports (DMRs) for each outfall were prepared and sent to the Mississippi Department of Natural Resources and the U. S. Nuclear Regulatory Commission via NPDES Monthly Reports.
2.8 THERMAL MONITORING PROGPAM Grand O'.lf Nuclear Station's NPDES Permit requires that GGNS effluents and the Mississippi River mixing area be monitored to determine what effects, if any, will result .
from GGNS' heated discharge into the river. The NPDES P
Permit states:
The receiving water shall not exceed a maximum t water temperature change of 2.8'c (5.0*F) :
relative to the upriver temperature, outside a !
mixing zone not exceeding a maximum width of 60 feet from the river edge and a maximum length of 6000 feet downstream from the point of discharge, as measured at a depth of 5 feet. The maximum water temperature shall not exceed 32.2*C (90*F) ,
outaide the same mixing zone, except when ambient t temperatures approach or exceed this value.
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f Monitoring was conducted semiannually, once in winter
.(February) and once in summer (July), when Unit 1 was operating at a minimum of 25% power.
To initiate the thermal monitoring program and obtain baseline data, the river bank was surveyed to establish and permanently mark 72 reference points 100 feet apart.
Sixty-six of the reference points are located downstream of GGNS' discharge into the river,'and the remaining six are located upstream of the discharge.
1 Calibrated digital thermometers were used to obtain i
temperatures at a depth of five feet and at the surface.
At each reference point, measurements were taken 100 feet ,
from the river bank, then at 10 feet intervals until reaching the. bank. This provided 20 temperature data points for each reference point.
2.9 COOLING TOWER DRIFT PROGRAM The Environmental Protection Plan requires a study to determine the environmental effects of salt deposition from cooling tower drift. After reviewing suitable study ,
methods, GGNS personnel elected to conduct a quantitative ,
and qualitative cooling tower drift study which would identify the salts deposited on vegetation in the surrounding environment and determine the quantity of each salt. ;
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Salt Deposition Station Locations Eight sampling sites were utilized to measure cooling tower drift deposition. Six of the eight sampling sites were located in areas where maximum salt deposition is predicted. These areas were extrapolated from the Bechtel Salt Deposition Model developed for the GGNS Final Environmental Report. The remaining two sampling sites are control sites. The first is located south of Raymond, Mississippi. An additional control site was added at Port Gibson, Mississippi, in 1985.
Four of these sampling sites were equipped with replicate sampling devices, and two of the replicate sampling sites had triplicate sampling devices. The Heavy Haul Road and Glodjo locations had duplicate sampling devices which were not installed until 1985. The 1985 duplicates were established to strengthen the program's statistical trend analysis and improve the saupling and analysis quality assurance. The location of salt deposition sites are identified in Figures 2-5 and 2-6 and listed in Table 2-3.
Fallout salaples were collected on a quarterly basis using buckets containing a known volume of deionized water.
The buckets are located four to six feet above the ground, fitted with bird rings and covered with fine mesh screens to exclude leaves and insects.
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Sample Analysis and Collection Samples were collected quarterly and analyzed for ten constituents:
o Calcium o Magnesium o Sodium o Iron o Phosphate o Nitrate o Chloride o Fluoride o Sulfate o Total dissolved solids.
These parameters were selected because past analyses have shown them to be prevalent in the Plant Service Water System. Salt constituents were also determined for the demineralized water used in the initial setup of the collection buckets. Rainfall data was recorded for each sampling site.
Screens were washed with deionized water, and the wash water volume measured and deposited in the collector, on a quarterly basis. The volume of water in the collector was then measured, and a composite sample of the collector's contents was placed in a clean cubitainer, sealed and labeled. The date of removal, total volume in the collector, total rainfall and location of the site were recorded on the appropriate data sheets.
Salt Deposition Rate Calculation Salt deposition rates (SDR) were calculated on a constituent-by-constituent basin from:
o The total volume of water contained in the sampling bucket o The concentration of a constituent in this water
- o The volume of demineralized water placed in the sampler initially J20RPT870224 10
b o The concentration of the constituent in the i demineralized water o The sampling area of the bucket.
Therefore, for a particular constituent, SDR = (V CT T) ~ I'O D)
A SDR = Salt Deposition Rate (mg/m 2) where:
V T = final sample volume (1)
T = final sample constituent concentration (mg/1)
V D = seeded volume of demineralized water (1)
C D = demineralized water constituent concentration (mg/l)
A = collector area (m ).
2.10 METEOROLOGICAL SYSTEM The GGNS meteorological tower, with base elevation of
- 156 feet above MSL, is approximately 5000 feet north-northwest of the GGNS Unit 1 reactor building, which c has a finished grade 132 feet above MSL. The location of the meteorological tower is shown in Figure 2-7.
The area around the meteorola'ical tower is flat and covered by grass. The nearest bluffs are approximately 362 feet to the west of the tower, with trees 35 feet high along the bluffs. Approximately 400 feet to the east are trees greater than 50 feet high. To the south, the nearest trees greater than 50 feet high are approximately 690 feet ,
from the tower. A county road passes the meteorological i J20RPT870224 11
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tower approximately 400 feet to the north. The tallest -
structure, the GGNS Unit 1 natural draft cooling tower, is
- 522 feet high and is situated approximately 6000 feet south-southeast of the meteorological tower. ;
Due to its location in a relatively open area and its I proximity to GGNS, the tower site is expected to accurately .
1 represent the same meteorological characteristics as the .
region into which airborne material could be released from i
GGNS.
The meteorological system consists of duplicate sensors (Channels A & B). Data recorded by meteorological instruments are stored in digital and analog forms via 4
magnetic tape and strip charts. The following -
1 meteorological parameters are monitored by the system:
o Wind Direction o Change in Temperature (delta T) o Wind Speed o Dew Point i o Temperature o Surface Precipitation. -
Meteorological data was included in the Semiannual ,
! Radioactive Effluent Release Reports submitted to the
- U. S. Nuclear Regulatory Commission. .
! 2.11 ENVIRONMENTAL EVALUATIONS ,
The Environnantal Protection Plan (EPP) for GGNS '
permits changes in GGNS design or ordration and the performance of tests or experir.ents that affect the
! environment, provided they do not involve a change in the i
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1 EPP or an unreviewed environmental question. This means that changes, tests or experiments which do not affect the
, environment are not subject to the requirements of the EPP. Also, the requirements of the EPP do not relieve GGNS of the requirements in 10 CFR 50.59, "Changes, Tests !
and Experiments," which address the question of safety ;
i associated with proposed changes, tests ,and experiments.
Changes in plant design or operation and the performance of tests and experiments were reviewed by GGNS personnel for the possible effects they might have on the ;
environment. When th'a review determined the change, test or experiment could affect the environment, an environmental evaluation was prepared and recorded before additional +
construction or operational activities associated with the change, test or experiment were begun. However, the EPP excluded changes, tests or experiments from the evaluation:
o Il all measurable environmental effects were confined !
to onsite areas previously disturbed during site preparation and plant construction, or
! o If they were required to achieve compliance with other federal, state, or local requirements.
Review of changes, tests and experiments at GGNS was conducted by one of three groups:
o Nuclear Plant Engineering o Nuclear Operations 4
o Nuclear Support, i
i The originating organization performed an applicability determination on each proposed change, test or experiment l to ascertain if the activity might affect the environment. [
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only those which had the potential to affect the environment were required to receive environmental evaluations.
The originator of a proposed change,- test or experiment completed an environmental evaluation or documented that one was not required. Completed environmental evaluations were forwarded to the t
Radiological & Environmental Services (R&ES) Section in the Nuclear Support Department for an' independent review.
After providing independent review, the R&ES staff reported i i
the results of environmental' evaluations to the NRC in the ,
i GGNS Annual Environmental Operating Report.
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.1 TABLE 2-1 REGIONAL GROUNDWATER WELL LOCATIONS IN FIGURE 2-3 ,
LEGEND WELL NUMBER SECTOR LOCATION DESCRIPTION
-1 PS,-OWS B NE Laydown Area-- Unit 2 Bluff behind Unit 2 2 OW209A, P209 D(E) Cooling Tower 3 OW202 E Bluff north of Switchyard
- 4 OW10 A West end Met. Tower field Former County Road -
5 OW4, OW4A, P4 R Adjacent to Stream A West Laydown Area -
6 OW29A Q Unit 2 Field - Northside Haul 7 OW69A P Road 8 OW7 N Across the south Plant Access Road and south of Basin B l
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i TABLE 2-2 PERCHED GitOf'NDWATER WELL LOCATION.$.
IN FIGURG 2-4 WELL NO. UNIT NO. LOCATICW DESCRIPTION ,
MW1 2 North end Unit 2 Turbine Bldg.
MW2 2 Northwest corner Unit 2 Auxiliary Bldg.
MW3 1 Northeast of SSW B Basin (between fences)
MW4 1 Southwest side SSW A Basin
- MWS 2 Northeast GGNS Maintenanca Shop MW6 1 North of Condensate Storage Tank MW7 2 East of Unit 2 Turbine B3dg.
DW1 2 East of Unit 2 Turbine Bldg.
DW2 2 Corner Auxiliary Bldg. - Turbine Bldg.
Unit 2 ,
DW3 2 Northwest corner Unit 2 Auxiliary Bldg.
by electric panels DW4 2 Southwest corner of Unit 2 Auxiliary Bldg.
DWS 1 Between SSW A and SSW B Basins -
DW6 1 In front of Diesel Generator Bldg.
(unier manhole)
DW7 1 Corntr Unit I Turbine Bldg. - Auxiliary Bldg. <
DW8 1 Behind Radwaste Bldg. - Unit 1 J20RPT870224 16
- r 4
- c
^
TABLE 2-3 SALT DEPOSITION STATION LOCATIONS IN FIGURES 2-5 AND 2-6 t
P LEGEND ID NO. SECTOR DESCRIPTION .
s i
1 SDS 1, lA P Heavy Haul Road - adjacent to Basin B 2 SDS 2, 2A, 2B A Fenced storage area by Met. Tower
. 3 SDS 3 C Catwalk on truck bypass road 4 SDS 4 E Former location of Maggie Jackson i Residence - Bald Hill Read
-5 SDS 5, 5A, - SB .J Support Services Center (Old '
Training Cer.ter) - Bald Hill Road l t
t 6 SDS 6, 6A L Glodjo Residence - Bald Hill Road l t
i 7 SDS 7 D Smith Residence - Raymond, MS [
(control)-
9 SDS 9 G City Barn - Port Gibson, MS (control) E t
i Note: Identification number 8 is assigned to a !
deionized water control sample !
a i
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J20RPT870224 17 (
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FIGURE 2-4 LOCATION OF CONSTRUCTION 2-21 DEWATERING AND OBSERVATION WELLS (FBRCHED) -
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SECTION 3.0 OBSERVATIONS AND DISCUSSIONS J20RPT870224 1 l
3.1 SMOKE CONTROL During periods of operation, the GGNS burn pit was ;
periodically evaluated for visible emissions by ESP ;
personnel. The evaluations were unannounced and consisted of instantaneous opacity determinations by certified [
specialists. Monthly average opacity values and days of ;
operation are provided in Table 3-1 and represented !
graphically in Figure 3-1.
During the year, no opacity violations were noted. !
The yearly average opacity for the burn pit was 21%.
There were 211 total days of observed operation.
Burn pit opacity was similar to that of previous j years. Based on 1987 monitoring, the operation and ;
construction of GGNS have contributed no significant air i
emissions to the surrounding environment. [
t 3.2 EROSION CONTROL !
Stabilization and revegetation of the majority of disturbed areas on the GGNS site have been accomplished.
The only disturbed areas remaining which have not been completely stabilized are the laydown and Unit 2 construction areas. Major construction areas associated with Unit 1 have been properly stabiliced.
Monthly grab samples were collected as required by the GGNS NPDES Permit from the outfalls of Sediment Basins A & B for total suspended solids (T$S) analysis. Samples were collected at times considered to be representative of the entire month and average runoff conditions. Normally, J20RPT870224 1
[
i samples were not collected if prevailing meteorological l t
conditions (such as heavy rain) could skew analysis ;
results. Analytical results are presented in Table 3-2. f
] Results from 1987 samples were consistent with TSS f
I results from previous operational years. The annual ;
e average TSS value for Sediment Basin B is slightly higher but similar to Sediment Basin A. This indicates that overall the basins function at similar efficiencies and that minimal erosion is occurring on the GGNS cite, i .
5 3.3 TRANSMISSION LINE SURVEYS (1987) '
l i,
The semiannual aerial surveys of the GGNS transmission )
lines identified no major problem areas during 1987. Grand l 1 :
j Gulf Nuclear Station transmission lines have well [
established vegetation. A detailed summary of each
- semiannual survey is provided in Appendix 1. ;
l Stabilization of soil and vegetation on GCNS i j transmission line right-of-ways has progressed well, and 1
sufficient ground cover is now available to preclude future l l
serious erosion problems. Past and present semiannual !
c transmission line surveys have established the following
, l 1
o construction practices were effective in minimizing i environmental impact. i o Erosion and vehicular damage caused by hunting and j logging encroachment over the years has been minimal !
and caused no lasting problems. ;
I o Past remedial action required to control erosion has i a been effective.
i !
t i
i i l I
i !
J20RPT870224 2 i
I
3.4 CHEMICAL AND SOLID WASTE MANAGEMENT ,
i Solid Waste Solid waste generated at GGNS during 1987 did not present any unanticipated problems or adversely affect the environment. Office waste, rubble and debris were incinerated or buried on site without incident. Solid waste activities at GGNS during 1987 were in compliance with Mississippi Department of Natural Resources, Bureau of Pollution Control, "Nonhazardous Waste Management Regulations," issued September 1984.
Chemical and Liquid Waste GGNS did not incur any serious problems or incidents with chemical and liquid waste control in 1987. Chemicals of a nonhazardous nature (resins, cement slurry, Tech-Sil non-leaded sealants, charcoal and filters) were successfully disposed of on site. Chemicals which were suitable for reuse were recycled through local contractors and nonprofit organizations. Nonhazardous liquid wastes (borated water, glycol and cooling water) were disposed of in the GGNS Resin Pond or discharged through National Pollutant Discharge Elimination System outfalls.
L f
I J20RPT870224 3
a i
i i- Hazardous Waste !
The Mississippi Department of Natural Resources (MDNR) .
t l
' inspected the Hazardous Waste Storage Area and related i
activities on May 6, 1987. The purpose of the inspection ;
was to confirm regulatory compliance with the GGNS ;
t i Hazardous Waste Management Permit. ,
. One item of non-compliance was identified by this inspection. Two drums were deemed by the inspector to be j of inadequate structural integrity due to dents in the j bottom rim. The contents of these drums were promptly
.i transferred to undented drums. No other noncompliances ;
were identified. L Hazardous waste shipments for 1987 went to rue of the j j following facilities:
Chemical Waste Management - Emelle, Alabama
~
o o ENSCO - Eldorado, Arkansas o Rex Brown Steam Electric Station - Jackson, !
Mississippi (waste oil only) :
Each shipment was properly aanifested and signed copies acknowledging shipment receipt were returned by the disposal facility. j Polychlorinated Biphenyls (PCBs) i I
l t No known exposure or offsite release of PCBs occurred .
in 1987.
- i 1 !
4 r i
1 J l J t J20RPT870224 4 f l
3.5 LAND MANAGEMENT AND WILDLIFE Based on field observations by ESP personnel, the 1987 operation of GGNS had no apparent ecological effect on the GGNS wildlife population. Common wildlife, such as deer, turkey and fish continue to be abundant based on hunting and sport fishing activities. Also, no adverse impact was observed on threatened or endangered species known or suspected to inhabit the GGNS site.
Land management practices continued as in past years.
Fields near the meteorological tower were used for agricultural production and mowing machines were used to maintain other cleared areas. The majority of the site can still be classified as predominantly hardwood forest.
Thus, diverse habitats were maintained to promote the wildlife population.
3.6 GROUNDWATER Regional Groundwater Regional groundwater monitoring data is presented in Tables 3-3 and 3-4. Water levels recorded in 1987 were generally consistent with preoperational and previous operational data. This indicates the radial well pumping operation is not affecting the regional water table.
A hydrograph for each regional well is provided in Figure 3-2.
J20F;PT870224 5
f I
I Perched Aquifer Perched groundwater data is presented in Table 3-5. A hydrograph for each perched aquifer well is provided in l 1
Figure 3-3. As indicated in Table 3-5, no water level ;
exceeded 109.0 feet MSL during the 12 scheduled i surveillances.
I Rainfall data is presented in Table 3-6.
3.7 NPDES ,
The 1987 monitoring results for all permitted outfalls were reported in the National Pollutant Discharge ,
Elimination System (NPDES) reports. The upri<er l temperature data required by the permit was also included i in each report. The Mississippi Department of Natural Resources (MDNR) and the U. S. Nuclear Regulatory !
Commission received copies of these reports.
i Several items noted during 1987 and included in the l NPDES reports are summarized in the following: !
o six discharges were recorded to support activities t during Refueling Outage No. 2. The following :
describes the discharges:
Date Quantity Source 11/7 1,250 gal. Div. I Diesel Cooling -
Water Jacket :
11/8 4,700,000 gal. Unit 1 Cooling Tower Basin 12/2 7,000,000 gal. Standby Service Water Basin A l 12/12 2,000 gal. Div. I Diesel Cooling l Water Jacket ;
12/13 1,250 gal. Div. I Diesel Cooling I Water Jacket f
J20RPT870224 6 :
l
- g. s i
t
=
i Date Quantity Source 12/28 250,000 gal. Circulating Water System All discharges were within NPDES limits.
o On November 20, a fish kill occurred in Sediment Basin B due to biocide-treated Plant Service Water which was routed to the basin during outage activities.
A detailed description and corrective action was provided to the MDNR and NRC in correspondence (APO-87/1030) dated December 18, 1987.
o The analysis of a sasple collected from Outfall 015 (Unit 2 Sewage Treatment Plant) in December revealed a BOD g concentration of 62.0 mg/1. This concentration exceeded the maximum discharge limit of 45 mg/l specified in the FPDES Permit, The cause for the high BOD g concentration was increased water usage during Refueling Outage No. 2. The treatment plant system was cleaned and water usage returned to normal the following month. As a result, BOD concentrations 5
returned to within NPDES limits 3.8 THERMAL MONITORING Thermal monitoring (Section 2.8) was conducted in February and July 1987 by ESP personnel. The results were organized so that temperature changas could be noted at specific distances from the river bank. No limit imposed by the NPDES Permit was exceeded, h summary of thermal monitoring conducted through 1987 is provided as Appendi's II.
3.9 COGLING TOWER DRIFT During 1987, cumulative salt deposition samples were collected for four quarterly periods. Replicate samples were taken at four locations (Stations 1, 2, 5 and 6) as described in Section 2.9.
J20RPT870224 7
I Table 3-7 presents the calculated salt deposition rates (SDRs) for the eight monitoring sites in the GGNS Cooling Tower Drift Program. These SDRs.1'orm the bases for the statistical analysis required by Section 4.2 of the EPP. This analysis was performed by GGNS Nuclear Plant Engineering and is presented in Appendix III.
l Rainfall data collected at each sampling site is provided as Table 3-8.
3.10 METEOROLOGICAL DATA Meteorological data for the 1987 reporting period was included in the Semiannual Radioactive Effluent Release
! Reports submitted to the U. S. Nuclear Regulatory i commission. Data contained in these reports is summarized
) in the following tables:
) o Joint Frequency Distribution, 50 Meter Level (Table 3-9)
- o Joint Frequency Distribution, 10 Meter ~ Level (Table 3-10) o Percent Bad Data Report (Table 3-11).
[
- 3.11 ENVIRONMENTAL EVALUATIONS f During 1987, no unreviewed environmental questions i were found. One minor administrative EPP change, unrelated 1
to environmental evaluations, is discussed in Section 4.1.
Environmental evaluations reviewed by Radiological i
i and Environmental Services personnel were routine matters within the scope of expected activities. No environmental i
consequences have been observed as a result of conduct of l the activities evaluated.
i J20RPT870224 8 i
A completed copy of each 1987 environmental evaluation recorded by R&ES is included in Appendix IV. An analysis, ,
interpretation and evaluation of the environmental impact of each change, test or experiment is made in each environmental evaluation. Table 3-12 summarizes the evaluated items.
F L
i f
l i
1 l
t J20RPT870224 9 l
TABII 3-1 BURN PIT OPACITY (I)
Month Operating Dsys Avg. Opacity (%) Days > 40% Opacity JAN 12 25 0 FEB 12 20 0 MAR 22 20 0 APR 20 23 0 MAY 19 19 0 JUN 19 23 0 JUL 17 22 0 AUG 18 19 0 SEP 18 19 0 OCT 20 18 0 NOV 17 26 0 DEC 17 22 0 Total 211 Yearly Average 21 (1) Data taken from daily site check log J20RPT870224 10 t _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ . -
i .
i
- I I
TABLE 3-2 !
1987 TSS ANALYSIS .'.ESULTS (I)
-SEDIMENTATION BASINS A & B Sedimentation Basin A Sedimentation Basin B Collection (Outfall 013) (Outfall 014)
JAN 33.5 2.5 FEB 18.6 60.6 MAR 16.5 17.8 APR 6.2 29.4 MAY 27.4 23.3 ,.
JUN 11.8 4.2 JUL 59.7 24.2 [
AUG 48.3 34.2 SEP 49.3 47.0 OCT 83.3 34.3 .
NOV 46.5 3.0 DEC 13.1 1.9 t Yearly Average 34.5 23.5 I
(1)-Analysis results expressed as ag/1. Data obtained from NPDES data sheets. l t
J20RPT870224 11 ,
TA8LE 3-3 1987 REGIONAL GROUNDWATER MONITORING DATA REGIONAL WELL MO. - WATER LEVEL (ft)I DATE OW-4 OW-4A ' OW-29A OW-209A P-5 OW-7 P-4 OW-69A OW-202 OW-5 OW-10 P-209 1-09-87 69.5 69.5 68.8 91.1 75.3 72.0 61.8 68.2 78.0 74.8 101.5 DRY l 1-23-87 69.6 69.5 68.5 90.9 75.4 73.2 61.5 68.8 78.0 74.8 101.2 DRY 2-06-87 69.5 d9.7 68.7 91.0 75.4 73.5 61.4 68.3 78.0 75.0 100.8 DRY 2-23-87 69.4 69.6 68.8 91.7 75.5 74.3 61.3 67.5 78.2 ' 75.0 103.0 DRY 3-06-87 69.7 70.3 71.6 91.1 75.8 78.0 61.7 69
- 3 78.7 75.2 103.0 DRY 3-19-87 70.6 72.0 72.1 91.2 76.2 77.2 63.0 1s 79.8 76.0 104.8 DRY 4-03-87 71.7 72.1 70.9 91.3 76.4 77.4 62.8 71 79.3 76.2 113.3 91.0 4-17-87 71.9 72.0 71.5 91.5 76.8 76.8 62.8 71.6 79.3 76.5 108.3 91.2 5-01-87 72.2 72.4 70.8 91.6 77.0 76.7 63.2 70.8 79.4 76.5 106.0 90.6 5-15-87 72.4 71.4 70.5 91.5 76.7 76.6 62.8 70.5 79.1 76.5 105.1 91.3 5-28-87 72.0 71.1 69.9 91.6 77.0 76.3 62.1 67.7 78.7 76.3 104.3 91. 5 ~ H 6-12-87 68.6 70.4 69.7 91.6 76.7 75.5 61.8 69.0 78.2 76.0 103.0 91.4 6-25-87 71.2 70.3 69.4 91.6 77.0 75.7 61.6 67.9 78.4 76.1 103.9 91.5 7-10-87 70.9 69.7 66.5 91.5 76.7 75.8 61.0 67.4 78.1 75.8 102.9 91.5 7-27-87 70.4 69.3 69.6 91.5 76.1 74.1 60.4 67.5 77.9' 75.6 103.1 91.5 2 l 8-10-87 69.9 68.8 67.0 91.3 76.0 73.5 59.9 67.4 77.4 74.9 101.3 91.3 8-24-87 68.5 68.3 67.6 91.5 75.9 73.9 59.2 66.0 77.6 74.9 100.6 91.5 9-04-87 69.5 68.1 67.0 91.5 75.4 72.8 7.~ 9 66.0 77.3 75.0 100.2 90.6 9-18-87 66.9 69.6 67.4 91.5 75.3 72.4 'A . 1 65.7 77.5 75.1 99.5 90.5 10-02-87 68.5 67.2 64.1 92.4 75.9 71.9 57.8 64.9 76.6 74.0 98.7 91.1 10-15-87 70.9 67.0 65.9 90.7 74.8 71.5 57.2 65.1 76.2 74.0 98.5 91.1 10-30-87 67.8 66.3 63.0 91.2 74.8 71.) 56.5 63.7 75.9 73.5 98.0 90.8 11-13-87 67.6 66.2 63.3 91.9 74.4 70.8 56.1 64.1 76.1 73.6 97.7 91.0 11-25-87 67.5 66.4 63.8 91.0 74.3 71.0 56.3 63.7 76.6 73.5 137.7 2 90.9 12-11-87 67.2 66.1 61.3 91.0 74.3 71.1 56.2 62.3 76.6 73.4 124.0 2 .91.0 12-23-87 66.8 65.6 60.5 90.9 74.0 71.0 56.2 61.5 76.6 72.9 119.7 2 91.0 (1) - Water Level expressed as ft Mean Sea Level (MSL)
(2) - Heavy rainfall, water intrusion J20RPT870224 12
___ _ _ . _ _ _ _ . _ . _ _ _ _ . . - _ . _ _ _ _ _ _ _ . . . _ . ~ - _ _ _ . . _ _ . . _ _ . _ _ - . . ~ _
TABLE 3-4' i ~
-1987 REGIONAL GROUNDWA1ER MONITORING
SUMMARY
======_______=========________--= ---_=======_==-===_====----------==------------_______
l 2
Formation 1 Well No. Year Min (Month) Max (Month) Averao' g l .l OW4 1987 A l 66.8 DEC l 72.4 'MAY I 69.6 1 1 I I I i l
OW4A 1987 A I 65.6 DEC l 72.4 MAY l 69.2
- 1 I I OW29A 1987 T I 60.5 DEC 1 72.1. MAR- l 67.6 I I 1 i OW209A 1987 T I 90.7 OCT I 92.4 OCT I 91.4 i l i I l P5 1987 C 1 74.0 DEC l 77.0 MAY I 75.7 JUN
~
l 'l 1 1 1 1 l OW7 1987 T l 70.8 NOV l 78.0 MAR I 74.0 l
I l- I P4 1987 C l 56.1 NOV I 63.2 MAY l 60.1 1 I I OW69A 1987 A l 61.5 DEC l 71.1 APR l 67.1-I .I I t OW202 1987 T l 75.9 OCT I 79.8 MAR I 77.8 l l l l l OWS 1987 T I 72.9 DEC I 76.5 APR I 75.0 l l l MAY I I I I OW10 1987 C 1 97.7 NOV l 137.7 NOV i 105.4.
I I l P209 1987 C l 90.5 SEP l 91.5 MAY I 91.1-1 I JUN I I I JUL l 1
A = Alluvium; C = Catahoula; T = Terrace Deposits 3 Water Level Elevation (Feet Above MSL)
Average Elevation for Non-Dry Readings (Feet Above MSL)
J20RPT870224 13
TABLE 3-5 1
1987 PERCHED GROUNDWATER MONITORING DATA
~
5 MONITORING WELL-WATER LEVEL (f t) DEWATERING WELL-WATER LEVEL (ft)
Month DW3 DW4 DWS DW6 DW7 DW8 Date _ MW1 MW2 MW3 MW4 MW5 MW6 MW7 DW1 DW2-I I j JAN 01/13/87 l 98.2 96.6 101.0 103.3 101.8- 104.7 87.8 l. 87.8 99.7 98.1 97.9 101.2 88.9 105.7 106.4.-
- 1 I .
FEB 02/23/87 l 98.3 96.8 101.2 105.2 101.7 105.2 88.8 l 87.7 99.9 -98.5 '98.0 101.4 89.6 106.0 107.0' I I MAR 03/13/87 l 98.4 92.2 101.4 104.6 102.3 106.2 87.9 l 87.2 99.9 93.6 96.5- 101.7 89.7 107.2 106.5 I I
[ APR 04/30/87 l 98.3 96.5 39.6 101.8 102.0 105.6 87.1 1 87.2- 99.8 98.1 97.9 86.4 89.5 95.0 107.7-I I MAY 05/27/87 l 98.1 94.4 99.5 101.9 101.7 105.4 86.4 1 88.2 99.6 96.1 97.6- 92.7 105.4 98.2 107.0
- I I JUN 06/24/87 l 98.1 96.4 99.7 102.5 1J1.7 105.1 86.7 l 87.2 99.6 98.0 98.0 100.3 '95.2 98.0 106.3 I I j JUL 07/21/87 l 98.0 96.9 100.2 102.9 101.8 104.7 87.9 1 86.3 99.6 98.1 97.9 100.7 94.9 98.3 107.7 l l I
AUG 08/28/87 l 97.9 95.4 104.7 97.8 101.8 104.2 89.2 1 89.2 99. ', 97.1 97.1 100.9-104.3 95.7 107.5 l I 5EP 09/18/87 I 98.0 96.5 100.5 102.5 101.2 104.7 89.3 l 88.I 9s.5 97.8 97.8 .100.7 104.6 105.5 107.2 I I OCT 10/30/87 l 97.6 95.1 100.3 102.0 101.3 103.7 89.1 1 89.0 99.0 96.8 95.8 100.4 103.7 104.7. 106.4 i i ~
NOV 11/24/87 l 97.6 94.9 100.4 102.8 101.0 103.4 89.2 l 88.8 99.0 '16. 6 96.1 100.5 103.5 100.5 106.5 l 1 DEC 12/14/87 I 97.2 94.8 100.3 102.2 100.4 103.0 89.2 l 88.8 98.8 95.1 95.9 100.4 103.2 '102.4 106.6 Water Level Mean Sea Level (M.S.L.)
J20RPT870224 14
( #
1 TABLE 3-6 1987 PRECIPITATION. MEASUREMENT GRAND GULF NUCLEAR STATION OBSERVED AT' SITE II)
MONTH INCHES JANUARY 3.66 FEBRUARY 8.69 f
MARCH 9.26(2)
APRIL 1.54 MAY 5.04 JUNE 3.73 JULY 4.08 AUGUST 3.37 SEPTEMBER 1.42 OCTOBER' O.97 NOVEMBER- 6.78 DECEMBER 2.13 TOTAL 50.67 (1) - Rainfall measured adjacent to the GGNS Meteorological System (2) - Some rainfall data was lost when gauge overflowed on 3/18/87.
J20RPT870224 15
e t.
t TABLE 3-7 17,LT DEPOSITION (1987)
Page 1 of'S SDCa87 CALCIUM (mg/m sq.)
PERIOD ENDING 4-7-87 6-30-87 9-30-87 1-5-88 SDS1 485.56 153.33 189.97 436.03 SDSla 385.56 122.54 182.38 368.98-SDS2 760.79 139.13 75.56 89.05 SDS2a 119.21 194.44 82.78 85.71 SDS2b 171.75 90.16 93.32 92.22 SDS3 209.84 98.73 83.17 95.'24 SDS4 183.02 80.95 69.52 87.78 SDSS 182.06 126.35 176.51 138.57 SDS5a 162.38 122.86 156.98: 149.52 SDS5b 143.89 107.94 133.57 289.37 SDS6 118.10 71.59 57.30 78.25 SDS6a 123.97 64.44 83.97 95.71 SDS7 90.32 158.73 45.48 59.68 SDS9 200.08 146.98 131.27 159.52 SDC187 CHLORIDE (mg/m sq.)
PERIOD ENDING 4-7-87 6-30-87 9-30-87 1-5-88 T
SDS1 985.71 104.76 74.44 358.73 SDSla 985.71 83.81 64.13 347.62 SDS2 1071.43 74.92 79.37 363.49 SDS2a 1119.05 81.90 81.43 396.83 SDS2b 561.11 80.63 86.98 382.54 SDS3 1190.48 62.86 92.06 298.41 SDS4. 1153.97 85.71 83.49 377.78 SDSS 1215.87 66.67 79.68 339.68 SDS5a 1117.46 81.90 73.02 1082.54 SDS5b 1209.52 80.95 52.70 341.27 SDS6 1166.67 80.48 77.94 346.03 SDS6a 1044.44 79.05 83.49 330.16 SDS7 1223.81 184.76 90.48 306.35 SDS9 1035.71 114.60 87.62 453.97 J20RPT870224 16
TABLE 3-7,(CONT'D)
SALT DEPOSITION (1987)
Page 2 of 5-SDNo287 NITRATE (mg/m sq.)
PERIOD ENDING 4-7-87 6-30-87 9-30-87 1-5-88 SDS1 424.60 287.30 1.59 419.05 SDSla 615.08 295.24 3.17 131.75 SDS2 453.17 236.51 7.14 330.16 SDS2a 427.78 152.38 7.14 130.16 SDS2b 360.32 282.54 7.94 347.62 SDS3 415.08 223.81 8.73 298 41 SDS4 757.94 84.13 7.94 377.78 SDS5 488.10 300.00 161.11 339.68 SDS5a 488.10 376.19 12.70 358.73 SDS5b 465.08 352.38 5.56 284.13 SDS6 1373.81 365.67 52.38 314.29 SDS6a 594.44 300.95 7.94 396.83 SDS7 376.98 25.: 38 0.79 120.63 SDS9 296.03 22.22 7.14 263.49 SDPo487 PHOSPHATE (mg/m sq.)
PERIOD ENDING 4-7-87 6-30-87 9-30-87 1-5-88 SDS1 90.95 19.05 3.17 53.97 SDSla 90.95 15.87 0.00 47.52 SDS2 110.00 23.81 14.29 60.32 SDS2a 103.65 22.22 14.29 60.32 SDS2b 102.06 25.40 15.87 66.67 SDS3 100.48 12.70 17.46 53.97 SDS4 97.30 19.05 15.87 57.14 SDSS 94.13 12.70 7.94 50.79 SDS5a 94.13 19.05 9.52 53.97 SDS5b 6.19 (1) (1) 2.54 SDS6 94.13 22.22 15.87 57.14 SDS6a 87.78 22.22 15.87 60.32 SDS7 90.95 50.79 1.59 34.92 SDS9 95.71 47.62 14.29 69.84 (1) Invalid result (negative figure)
J20RPT870224 17
[
TABLE 3-7 (CONT'D)
SALT DEPOSITION (1987)
Page 3 of 5 SDMg87 '
MAGNESIUM (mg/m sq.)
PERIOD ENDING 4-7-87 6-30-87 9-30-87 1-5-88 SDS1 113.81 50.48 60.16 77.78 SDSla -85.24 40.79 64.44 96.51 SDS2- 50.95 22.30 24.44 ~39.37 SDS2a 26.51 22.54 25.48 39.37 EDS2b. 35.79 22.70 29.84~ 38.25 ^
SDS3 46.67 23.49 25.63 41.59 SDS4 35.08- 25.08 21.13 34.29 SDSS 33.97 20.63 28.68 36.51 SDS5a 29.05 25.08 28.02 41.59 SDS5b 27.94 25.24 25.27 48.41
, SDS6 24.13 23.97 19.68 37.46 SDS6a 27.14 22.54 22.79 36.03 SDS7 237.62 39.68 15.40 30.32 SDS9 49.52 32.06 40.95 52.70 SDNa87 SODIUM (mg/m sq.)
PERIOD ENDING 4-7-87 6-30-87 9-30-87 1-5-88 SDS1 849.84 101.27 59.05 450.16 ,
SDSla 378.41 86.51 48~.57 385.71 SDS2 312.70 91.59 60.56 438.41 SDS2a 294.92 79.21 69.84 458.41 SDS2b 310.40 82.70 66.51 457.30 SDS3 249.37 65.40 75.95 237.30 SDS4 231.43 88.57 72.54 261.59 SDSS 223.97 57.78 52.12 346.03 SDS5a 204.29 97.46 63.65 223.97 SDS5b 310.71 96.03 59.37 267.78
- SDS6 199.37 83.49 73.65 194.92 SDS6a 199.84 99.21 82.54 201.75 SDS7 202.22 149.21 43.02 163.02 SDS9 172.70 175.56 71.90 258.41 J20RPT870224 18
-TABLE 3-7 (CONT'D)
SALT DEPOSITION (1987)
Page 4 of 5 SDSo87 SULFATE (mg/m sq.)
PERIOD ENDING 4-7-87 6-30-87 9-30-87 1-5-88 SDS1 939.05 541.27 328.57 509.52
'SDSla 939.05 473.02 319.05 455.56 SDS2 900.95 417.46 346.03 430.16 SDS2a 850.16 452.38 366.67 430.16 SDS2b 555.71 398.41 377.78 487.30 ,
SDS3 877.14 347.62 400.00 358.73
'SDS4 1002.54 426.98 395.24 441.27 SDSS 970.79 395.24 416.67 425.40 SDS5a 970.79 452.38 352.38 720.63 SDS5b 934.92 468.25 368.25 426.98 SDS6 823.17 480.95 450.79 441.27 SDS6a 907.30 452.38 461.90 430.16 SDS7 769.19 595.24 249.21 368.25 SDS9 786.67 588.89 397.62 530.16 SDTDS87 TOTAL DISSOLVED SOLIDS (mg/m sq.)
PERIOD ENDING 4-7-87 6-30-87 9-30-87 1-5-80 SDS1 59793.65 1761.90 1000.00 2952.38 SDSla 55031.75 2968.25 1095.24 2634.92
-SDS2 50269.84 2285.71 2222.22 603.17 SDS2a 54968.25 1253.97 158.73 1269.84 SDS2b 55571.43 4126.98 1126.98 1365.08 SDS3 55412.70 682.54 2095.24 1142.86 SDS4 35412.70 1253.97 1063.49 1206.35 SDS5 42142.86 2396.83 1809.52 1650.79 SDS5a 32793.65 492.06 4238.10 11396.83 SDS5b 50428.57 (1) 3412.70 11968.25 i SDS6 41158.73 (1) 2396.83 571.43 SDS6a 23698.41 (1) 4174.60 603.17 SDS7 28365.08 (1) 1380.95 349.21 SDS9 40841.27 (1) 2015.87 698.41 (1) Invalid result (negative figure)
J20RPT870224 19
TABLE 3-7'(CONT'D).
SALT DEPOSITION (1987)
Page 5 of 5 SDFe87 IRON (mg/m sq.)
PERIOD ENDING' 4-7-87 6-30-87 9-30-87 1-5-88 SDS1 119.37 60.00 45.71 5'O.79 SDSla 90.79 40.16 70.95 55.87 SDS2 87.94 23.17 51.35 29.84 SDS2a 28.57 21.90 51.35 16.51 SDS2b 42.54 '32.70 55.40 21.90 SDS3 53.65 40.95 '39.52 11.59 SDS4 26.35 38.41 37.78 34.60 SDS5 40.00 29.52 61.67 22.22 SDS5a 15.40 42.06 40.32 11.59 SDS5b 32.62 44.13 49.92 26.03 SDS6 25.24 49.05 67.78 12.38 SDS6a 18.41 51.90 63.33- 19.84 SDS7 76.51 20.48 29.21 6.83 SDS9 50.79 24.60 103.97 57.46 SDF87 FLUORIDE (mg/m sq.)
PERIOD END.'.NG 4-7-87 6-30-87 9-30-87 1-5-88 SDS1 22.86 4.76 5.08 13.49
.SDSla 22.86 3.97 2.86 11.90 SDS2 27.62 5.95 7.70 15.08 SDS2a 26.03 5.56 9.76 15.08 SDS2b 25.63 6.35 8.73 16.67 SDS3 25.24 3.17 5.56 13.49 SDS4 24.44 4.76 6.19 14.29 SDSS 23.65 6.98 4.48 12.70 SDS5a 23.65 4.76 6.35 13.49 SDS5b 22.26 5.56 8.49 13.49 SDS6 23.65 5.56 23.97 14.29 SDS6a 22.06 6.98 16.19 15.08 SDS7 22.86 12.70 2.78 8.73
- SDS9 24.05 11.90 6.67 17.46 J20RPT870224 20
TABLE 3-8 1987 SALT DEPOSITION RAINFALL DATA Station No. Date Inches SDS #1 04-07-87 22.45 SDS #2 04-07-87 25.85 SDS #3 04-07-87 22.15 SDS #4 04-07-87 23.30 SDS #5 04-07-87 20.80 SDS #6 04-07-87 18.20 SDS #7 04-07-87 23.30 SDS #9 04-07-87 23.15-SDS #1 06-30-87 14.10 SDS #2 06-30-87 11.10 SDS #3 06-30-87 8.70 SDS #4 06-30-87 10.00 SDS #5 06-30-87 9.60 SDS #6 06-30-87 10.50 SDS #7' 06-30-87 15.20 SDS #9 06-30-87 10.80 SDS #1 09-30-87 8.40 SDS #2 09-30-87 9.10 SDS #3 09-30-87 9.00 SDS #4 09-30-87 10.55 SDS #5 09-30-87 9.05 SDS #6 09-30-87 9.55 SDS #7 09-30-87 1.40 SDS #9 09-30-87 7.50 SDS #1 01-05-88 13.90 SDS #2 01-05-88 13.90 SDS #3 01-05-88 12.75*
SDS #4 01-05-88 15.20 SDS #5 01-05-88 12.45 SDS #5 01-05-88 14.95 SDS #7 01-05-88 8.60 SDS #9 01-05-88 13.30
J20RPT870224 21
TABLE 3-9 1987 JOINT FREQUENCY DISTRIBUTION TOTAL FREQUENCY DISTRIBUTION PERIOD OF RECORD: 1/ 1/87, 000 -- 1/ 1/88, 000 WIND SPEED (M/S) AT 50-M LEVEL 18 AVG 0-2 3-5 6-8 9-11 12-14 15-17 AND UP TOTAL SPEED N 3.5 3.5 0.1 .0 .0 .0 .0 7.1 0.2 NNE 3.3 2.3 .0 .0 .0 .0 .0 5.6 0.1 NE 2.9- 1.5 .0 .0 .0 .0 .0 4.5 0.1 ENE '2.5 1.8 .0 .0 .0 .0 .0 4.4 0.1 D.E 2.6 3.6 0.1 .0 .0 .0 .0 6.3 0.2 I ESE 3.5 5.9 0.6 .0 .0 .0 .0 10.1 0.4 R SE 3.4 4.0 0.5 0.1 .0 .0 .0 8.0 0.3 W E SSE 3.7 3.3 0.5 .0- .0 .0 .0 7.6 0.3 ICS 3.4 2.7 0.1 .0- .0 .0 .0 6.2 0.2 N T SSW 3.7 1.9 0.2 .0 .0 .0 .0 5.8 0.2 D I SW 3.7 2.6 0.3 0.1 .0 .0 .0 6.7 0.2 0 WSW 3.3 1.3 0.3 .0 .0 .0 .0 4.9 0.1 NW 3.0 1.6 0.1 .0 .0 .0 .0 4.8 0.1 WNW 3.1 1.2 0.2 .0 .0 .0 .0 4.4 0.1 NW 2.8 2.0 0.1 .0 .0 .0 .0 4.9 0.1 NNW 3.1 3.7 0.3 .0 .0 .0 .0 7.2 0.2 CALM 3.1 1.4 TOTAL 53.1 43.0 3.4 0.4 .0 .0 .0 100.0 0.2 16.0 HOURS OF BAD OR HISSING DATA OR 0.2 PERCENT FOR 8760 HOURS J20RPT870224 22
TABLE 3-10 1987 JOINT FREQUENCY DISTRIBUTION TOTAL FREQUENCY DISTRIBUTION PERIOD OF RECORD: 1/ 1/87, 000 -- 1/ 1/88, 000 WIND SPEED (M/S) AT 10-M LEVEL 18 AVG 0-2 3-5 6-8 9-11 12-14 15-17 AND UP TOTAL SPEED N 6.3 1.1 .0 .0' .0 .0 .0 7.4 0.1 NNE 5.0 0.3 .0 .0 .0 .0 .0 5.3 0.1 NE 5.3 0.2 .0 .0 .0 .0 .0 5.5 0.1 ENE 7.2 0.1 .0 .0 .0 .0 .0 7.3 0.1 DE 5.1 0.2 .0 .0 .0 .0 .0 5.3 0.1 I ESE 3.5 0.1 .0 .0 .0 .0 .0 3.6 .0 R SE 3.5 0.1 .0 .0 .0 .0 .0 3.6 .0 W E SSE 4.1 0.4 .0 .0 .0 .0 .0 4.6 0.1 ICS 5.1 1.1 .0 .0 .0 .0 .0 6.2 0.1 N T SSW 4.5 0.3 .0 .0 .0 .0 .0 4.9 0.1 D I SW 4.1 0.6 .0 .0 .0 .0 .0 4.3 0.1 0 WSW 3.9 0.8 0.1 .0 .0 .0 .0 4.8 0.1 NW 3.5 .0 .0 .0 .0 .0 .0 3.6 .0 WNW 3.8 0.1 .0 .0 .0 .0 .0 3.9 0.1 NW 3.5 0.3 .0 .0 .0 .0 .0 3.8 0.1 NNW 5.0 1.1 .0 .0 .0 .0 .0 6.1 0.1 CALM 5.0 19.2 TOTAL 92.9 6.9 0.2 .0 .0 .0 .0 100.0 0.1 16.0 HOURS OF BAD OR HISSING DATA OR 0.2 PERCENT FOR 8760 HOURS J20RPT870224 23
h-i TABLE 3-11 1987 PERCENT PAD DATA REPORT PERCENT. BAD DATA REPORT REPORT COVERS'8760 HOURS HOURS PERCENT 50M DIRECTION 0. .00' 50M WIND' SPEED 0. .00 10M DIRECTION 0. .00-10M WIND SPEED 0. .00 TEMPERATURE 0. .00 DEW POINT 63. 0.72 DELTA T 16. 0.18 PRECIPITATION 27. 0.31 I
J20RPT870224 24
- . _ _ _ _ _ . _ . , _ _ - _ __ . _. ._ _ . ._.._ _ , _ _..__.-,_ _ ~ _
TABLE 3-12 1987 ENVIRONMENTAL EVALUATION
SUMMARY
Identifying Number Description SE-031/87 Remove the high-high radiation trip of the Radwaste' Building exhaust fans by lifting an electrical lead.
SE-033/87 Construct an 11,000 gallon berm for the temporary storage of a 7,500 gallon-tank _ trailer. When analytical results are received, the oil will be unloaded into the emergency diesel generator.
underground storage tanks.
SE-045/87 Provide instruction for chemical cleaning of Standby Service Water Loops A and C during RFO2.
J20RPT870224 25
FIGURE 3-1 BURN PIT OPACITY (1) 100 -
OPERATING DAYS 90 -
80 -
1 4
t 70 -
REGULATORY LIMIT 60 p 50 -
A0 - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - ~ ~ - - - - - - - --
30 -
,-~~.. '
20 M ' D 2 -
' ' ' D _- = e s 10
/
O' JAN FEB MAR APR MAY JUN JUL AUG SEP OCT NOV DEC MONTH NOTE : (1) DATA COMPILED FROM DAILY SITE CHECK LOGS 3-26 i
)
4
FIGURE 3-2 Page 1 of 3 REGIONAL WELL IIYDROGRAPIIS 1987 REGIONAL GROUNDWATER 1987 REGIONAL GROUNDWATER REGIONAL WELL OW-4 REGIONAL WELL OW-4A NATER LEVEL MATIA lev 0.
- - =, - - =,
105 -
105 -
NISS. RIVER LEVEL MISS. RI LEVEL 90 -
90 -
- - .=,-
~~
4 -
= E.
4 -
5:% . -
5: 1RBNRHl ^ ~M H H H H H x
!!!N!!RH!HHHHHHH KADING DATES K ADING DATES
-MATER DPEEEED AS ft IEDue note : (0-m&TER LEVEL DFIEREED AS ft IEAN nott :
sets : m-wu sorres wAoIns Is -e.s et were : as-mat sortan on:A Is isavaIumz 1987 REGIONAL GROUNDWATER 1987 REGIONAL GROUNDWATER REGIONAL ' FELL OW-29A REGIONAL WELL OW-209A MATER LEVEL MATER LEVEL
- - =, -
=s 105 105 -
MISS. RIVER LEvtl -, _
_ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ , Miss. RIVER LEVEL 90 -
- _ = ____
=____
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y ,_____
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!NBBRHHHH!HHHH !HRRRH!HHHHHHH K ADIMS DATES KADING DATES sert : -en opussED AG ft GEAM 3W "*E-"''E'""'""
FIGURE 3-2 (CONT'D)
Page 2 of 3 REGIONAL WELL IIYDROGRAPilS 1987 EGIONAL GR0tNNATER 1987 REGIONAL GROLNNATER EGIONAL WELL P-5 EGIONAL WELL OW-7 sEAmsutENT (O DEAmsElen 10 120 - 120 -
IESS. ftIv51 LDEL BEM. IID5B t WI.
M11 SOTTW MLI. 50TTUBB se - 50 - - - - - - - - - - - - - - - - - - - - - - - - . - - - - - - - - - -
^
!NDRHlHlHH!HH!lH !NBRHlHHHHHHlHf fu'.ADING DATES READDIS DATES sErm : n-nam m osungen As et um mete : -4041ER N EMEEEED at ft IEm i
1987 EGIONAL GROUT 0 WATER 1987 EGIONAL GROLM NATER EGIONAL WELL P-4 EGIONAL WELL OW-69A s2e tae
=_.
108 - 106 -
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g . 90 -
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!NHHHlHHHRHHJHf !RBHHlHHHRHHlHf sWIE : (0-en N EWEEEEED AS ft BEAfl ISTE : 15512 5.WWEEEES AS ft IEAf1 sWE : CIS-enL. 3e77We OATA IB 494WAILARE INE : M-EEL 35f1W8 fEABIIS N -17.5
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FIGURE 3-3 (CONT'D)
Page 2 of 4 PERCllED WELL IIYDROGRAPilS 1986-1987 PERCED GROUlOWATER 1986-1987 PERCED GROUlOfATER MONITORING WELL MW-5 MONITORING WELL MW-6 mATai Levn. MATER LDB.
13e - gEstas easIs 135 -
testes anets ELEVATI0ss ELEVATIed 188 ~
IELL 10 8 90
- ___________________________________m_,, ,, s. - in. .
75 -
appeauGuanTE afsmelGNATE tELL BUTTtes 80 -
IELL SOTTEBt 80 -
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1986-1987 PERCED GROUP 0 WATER MONITORING WELL MW-7 maistts u.
- sie -
DEBIGee SASIS ELEVATItpe 106 -
- '__--_= _________=.--------_ r---___-
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l SECTION 4.0 ADMINISTRATIVE REQUIREMENTS J20RPT870224 i
-- - -, - . --__ . . . _ , . __ , "" 3__
4 4.1 EPP CHANGES ;
One minor administrative change to the GGNS Environmental Protection Plan was accomplished in 1987.
The change corrected a record retention period-inconsistency identified during the biennial review of the EPP. Operating License Amendment No. 42 contained this change to the EPP..
4.2 EPP NON-COMPLIANCES There were no EPP non-compliances during 1987.
Sampling and surveillance activities were successfully conducted according to the EPP schedule. The required monitoring program was conducted without a reportable deviation.
4.3 NON-ROUTINE REPORTS One non-routine event occurred during 1987. On November 20, 1987, the GGNS Plant Service Water discharge was directed to Sediment Basin B to facilitate maintenance outage activities. This action resulted in a fish kill in i
Sediment Basin B because biocide treatment was not .
discontinued. Recurrence of this problem is not ;
anticipated due to increased administrative controls.
Assessment of this incident by ESP personnel confirmed the aquatic effects were acute and confined to Sediment Basin B. No environmental impact was observed outside of the affected area.
l.
l J20RPT870224 1 P
A summary report of this event was provided to the Mississippi Department of Natural Resources and the U. S.
Nuclear Regulatory Commission in correspondence (APO-87/1030) dated December 18, 1987. A copy of this report is provided in Appendix V. l The underground sulfuric acid spill discussed in the 1986 Annual Environmental Operating Report remained ,
stationary in the area of the water treatment building during 1987. A follow-up report of this spill event was i provided to the Mississippi Department of Natural Resources and the Nuclear Regulatory Commission in correspondence ,
(APO-87/0639) dated August 11, 1987.
4.4 POTENTIALLY SIGNIFICANT UNREVIEWED ENVIRONMENTAL ISSUES There were no potentially significant unreviewed i
environmental issues encountered in 1987. Changes in station design and operation, tests and experiments did not result in an unreviewed environmental question.
Changes, tests and experiments were made in accordance with the EPP, Paragraph 3.1, Plant Design and Operation.
I
! Paragraph 2.11 provides a discussion of how the EPP, i
- Paragraph 3.1, is implemented. Activities at GGNS during 1987 which were related to the EPP, Paragraph 3.1, are I
discussed in Section 3.11 of this report. Completed 1987 i environmental evaluations are included as Appendix IV.
l l
I
, J20RPT870224 2 l
l l
r -.
3
_v-APPENDIX I SEMIANNUAL TRANSMISSION LINE SURVEYS i
l l
l r
i J20RPT870224 - I-i i
1 MEMO TO: File FROM: Ms. R. R. Jackson SU9 JECT: Aerial Survey of Transmission Lines Associated with Grand GulfNuclearStation(GGNS)
NSIM-87/0366 DATE: June 11, 1987 On May 29, 1987 the first semiannual aerial survey of the GGNS transmission lines for 1987 was conducted by Mr. G. W. Guider, Ms. G. R. Whitney, Mr. J. T. Bankston and Mr. J. W. Newman. The results are as follows:
e 500 KV GGNS to Baxter-Wilson Steam Electric Station Theinitial1987surveyidentifiednoproblemareaswith
~this transmission corridor. Revegetation continues to be excellent with no remedial recommendations at this time.
e 500 KV GGNS to Franklin Substation The initial 1987 survey identified no problem areas with this transmission corridor. This line continues in good condition with no remedial recommendations at this time.
e 115 KV GGNS to Port Gibson Substation No problem areas from erosion were observed along this corridor. Possible "danger tree-" were observed from Bayou Pierre to the Port Gibson substation. A "danger tree" is defined as any tree that could pass within ten feet of the line if it fell. SERI personnel accompanied MP&L line patrol personnel on this survey. MP&L line patrol personnel indicated no action was planned at this time. MP&L conducts monthly aerial surveys and will cut or trim "danger trees" as necessary.
e 500 KV GGNS to Ray Braswell No problem areas were observed along this corridor.
PENV AERIAL SVRVEY - 1 ,
j l
l NSIM-87/ 0366 Page 2 i Another survey is scheduled for Fall 1987.
6/RR GWG/GEA:beb cc: Mr. T. E. Reaves, Jr. .
. Mr. C. R. Hutchinson Dr. L. R. McKay ;
3~
Mr. A. S. McCurdy Mr. M. D. Henningto'n (MP&L) ,
Mr.. J. W. Yelverton
.Ms. G. R. Whitney .
Mr.J.T.Bankston(MP&L)
File' NS) -
File R&ES)
File ENV) [2]
e i
h 4
I i
i PENV AERIAL SURVEY - 2 l
t
MEMO TO: File FROM: Ms. R. R. Jackson
SUBJECT:
Aerial Survey of Transmission Lines Associated with Grand Gulf Nuclear Station (GGNS)
DATE: February 3, 1988 NSIM-88/0018 On December 1,1987 the second semiannual aerial survey of the GGNS transmission lines for 1987 was conducted by Mr. R. L. Callahan, Jr.,
Mr. J. T. Bankston and Mr. J. W. Newman.
The following transmission lines were surveyed:
500 KV GGNS to Baxter-Wilson Steam Electric Station
- 500 KV GGNS to Franklin Substation 115 KV GGNS to Port Gibson Substation
- 500 KV GGNS to Ray Braswell No problem areas or danger trees were identified along these transmission corridors. Revegetation continues to be excellent.
The next survey is scheduled for Spring 1988.
bcb cc: Mr. M. D. Hennington (MP&L)
Mr. C. R. Hutchinson Dr. L. R. McKay Mr. T E. Reaves, Jr.
File ENV)
File NS)
File R&ES) (1)
PENV AERIAL SURVEY /871201
.r_ , -
L APPENDIX II TIIERMAL MONITORING
SUMMARY
i f
l J20RPT870224 - II-i
. . . , _ . - , , ----+-3,_,,,_-,,_.,.g,_,---.,- - . - - , _ _ _ _ - _ - - - _ - . , . - T-e - rF '
THERMAL MONITORING
SUMMARY
BACKGROUND Grand Gulf Nuclear Station's NPDES Pemit requires that GGNS effluents and the Mississippi River mixing area be monitored to detemine what effects, if any, will result from GGNS' heated discharge into the river. The NPDES Pemit states:
"The receiving water shall not exceed a maximum water temperature change of 2.8'C (5.0'F) relative to the upriver temperature, outside a mixing zone not exceeding a maximum width of 60 ft from the river edge and a maximum length of 6000 ft downstream from the point of discharge, as measured at a depth of 5 ft. The maximum water temperature shall not exceed 32'C (90'F) outside the same mixing zone, except when ambient temperatures approach or exceed this value."
Monitoring is conducted semiannually (once in winter and once in summer) when at least one unit is operating at a minimum of 25% power.
To initiate the thermal inonitoring program.and obtain baseline data, the river bank was surveyed to. establish and permanently mark 72 reference points 100 ft apart. Sixty-six of the mference points are located downstream of GGNS' discharge into the river, and the remaining six are located upstream of the discharge (Figure 1).
Calibrated digital thermometers are used to obtain temperatures at a depth of 5 ft and at the surface. At each reference point, measurements are taken 100 ft from the river bank, then at 10 ft intervals until reaching the bank. This provides 20 temperature data points for each reference point.
DATA DEVELOPMENT Graphs i through 10 and Tables 1 and 2 were prepared from the data found in the 1982 through 1987 Thermal Monitoring Reports. These graphs and tables sumarize environmental conditions and plant operational data for each themal monitoring period.
Table 3 compiles data for each sumer thermal monitoring performed from 1982 through 1987. This table depicts the average temperature (surface and 5 ft) for:
o Specific survey points - first upstream (#5) and downstream (#6) survey points o Groups of survey points - points 1-4 (upstream), 7-11, 12-29, 30-48 and49-66(downstream).
PENV TM
SUMMARY
- 1
1 i
Temperatures for each group were averaged for each ten foot interval for sixty feet extending from the eastern shoreline. 1he temperatures averaged for June and September 1986, and July 1987 monitoring differed for the following points and distances:
o June 1986
- Points 30-48 9 all distances - average based on eight points
- Points 49-66 9 all distances - average based on four points o Se stember 1986 Tfirints 30-48 9 all distances - average based on ten points
- Po'nts 49-66, No readings taken o July 1987
- Points 30-48 9 all distances - average based on four points
- Points 49-66, No readings taken Table 4 was derived by the same method as Table 3 for the winter monitoring per:ods. The temperatures averaged for the February 1983, 1986 and 1987 monitoring differed for the following points and distances:
o February 1983
- Points WG 10 ft - average based on two points
- Points 1-4 0 20 ft - average based on three points
- Points 12-29 @ 10 ft - average based on seventeen points
- Points 49-66 0 all distances - average based on six points
~
These differences were caused by missing survey pins, high river level and obstructions.
o February 1986
- Points 49-66, no readings taken February 1987
- Points 30-48 0 all distances - average based on ten points
- Points 49-66, no readings taken S
D_ISCUSSION The Grand Gulf N9 clear Station thermal monitoring program was established to compare semiannual winter and sumer preoperational baseline data to operational data. Tables 1 through 6 provide a sumary of the monitoring data collected from September 1982 through July 1987 A graphical summary of i
PENV TM
SUMMARY
- 2
selected thermal monitoring locations for each monitoring period (Graphs 1-10) is aise attached.
Summer Data The data collected over the summer periods from 1982 through 1987 exhibited minor variation. The greatest temperature differential between the first upstream point (#5 from t5e discharge point and the first downstream point (#6))was 0.6'C.
The greatest temperature difference between surface level and the five ft depth was 1.0'C.
A thermal plume was detected during the June 1985 monitoring. The p(Table 5).lume A transect was located of the barge in the barge slip was performed slip prior totoentering determine the mixing zone the extent of the plume. The plume extended 70 ft out from the mouth of the barge slip and curved upstream for 60 ft (due to eddy currents) before dissipating. However, the temperature of receiving water did not increase more than 0.3'C. .
A thermal plume similar to the one observed in June 1985 was also observed in June 1986, September 1986 and July 1987 (Figure 3). Receiving water temperature did not increase more than 0.5'C during any of the monitoring periods.
No significant thermal plumes were detected in the mixing zone downstream of the discharge point.
Winter Data Data was collected during the winter periods 1983 through 1987.
The greatest temperature differential between the first upstream point from the discharge point and the first downstream point was 0.5'C. The greatest temperature difference between the surface and the five f t depth was 1.9'C. A barge slip plume
- imilar to June 1985 was also detected during the February 1986 and 1987 monitoring.
Figure 2 shows the thermal plume area found during the 1937 winter monitoring. As in previcus findings, the plume was confined to the barge slip and the adjacent area of the Mississippi River.
PREOPERATIONAL-OPERATIONAL MONITORING A comparison of preoperational and operational therral monitoring data (Tables 5 and 6) establishes that the turbulence and volume of the Mississippi i
River mix the heated discharge and cause little temperature variation.
Average preoperational (baseline) and operational thermal monitoring data were
{
PENV TM
SUMMARY
- 3
similar. As shown in Tables 5 and 6, the only area detectably influenced by the GGNS heated discharge was the barge slip and the associated entry into the Mississippi River.
CONCLUSION Examination of the thermal monitoring data indicates the Mississippi River supplies a volume of water sufficient for dissipating the heated discharge within the requiled mixing zone. Thermal monitoring has also established that the poten11al effects of discharging heated water from GGNS have been effectively mini'aized by the utilization of a cooling tower as a primary means of heat dissipation, i
l l PENV TM SLWARY - 4 l
1
TABLE 1 THERMAL MONITORING
SUMMARY
SUMMER (GENERAL DATA)
Preoperational Operational PARAMETERS SEPT 1982 JULY 1983 JUNE 1984 JUNE 1985 JUNE 1986 SEPT 1986 JULY 1987 River Flow (f t3 /s) 468,000 485,000 800,000 577,000 637,000 275,000 450,000 River Stage (f t) 16.5 17.2 25.85 20.6 22.5 7.2 16.3 Plant Power (%) 80.9 88.0 87.0 100 Average Ambient Temp. 23.8 30.6 19.2 23.3 29.0 26.1 26.4 (C*)
Average 001 Temp. (C*) 23.5 18.9 27.1 29.9 36.7 34.4 31.1 Flow to River (gpm) UNAVAILABLE 11125 13350 4374 10500 ~ 75 6460 Average Cooling Tower UNAVAILABLE UNAVAILABLE 3820 3910 9690 5792 6460 Blowdown (gpm)
Upriver Temp. UNAVAILABLE 31.2/- 27.2/27.2 26.4/26.1 28.5/28.6 26.3/26.3 28.9/28.6 (Surface /5 ft)
! I PENV TM
SUMMARY
TBL 1 - 1
l TABLE 2 THERMAL MONITORING
SUMMARY
WINTER Preop. Operat.
PARAMETERS FEB 1983 FEB 1986 FEB 1987 3
River Flow (ft /s) 805,000 412,000 510,000 RiverStage(ft) 29.4 15.5 18.9 PlantPower(%) 61.0 100 Average Ambient Temp. 11.5 20.0 14.8 (C')
i Average 001 Temp.(C') 14.4 26.1 22.8 Flow to River (gpm) UNAVAILABLE 8749 7839 Average Cooling Tower UNAVA',LABLE 5550 7360 Blowdown (gpm)
Upriver Temp. I;NAVAILABLE 6.0/6.0 6.0/5.9 (Surface /5 ft) l l
PENV TM
SUMMARY
TBL 2 - 1
TABLE 3 THERMAL MONITORING StM4ARY (SUMMER)
DISTANCE FROM EASTERN 5HORELINE (FT)
DATE 10 1 20 I 30 I 40 1 50 60 l
AVERAGE TEMPERATURE 'C, SURFACE /5 FT 1-4 SEPT 1982 27.3/26.0 27.3/26.0 27.3/26.0 27.3/26.0 27.3/26.0 27.3/26.0 JULY 1983 30.8/30.8 31.0/30.7 30.9/30.6 30.8/30.6 30.8/30.6 JUNE 1984 30.8/30.6 27.1/27.0 27.1/27.0 27.1/27.0 27.1/27.0 27.1/27.0 27.1/27.0 JUNE 1985 26.5/26.2 26.5/26.2 26.5/26.2 26.5/26.2 26.6/26.2 JUNE 1986 26.6/26.2 28.7/28.6 28.7/28.6 28.7/28.6 28.7/28.5 28.7/28.5 28.7/28.5 SEPT 1986 26.3/26.3 26.3/26.3 26.2/26.3 26.2/26.2 26.1/26.1 JULY 1987 26.1/26.1 29.0/28.7 29.0/28.7 29.0/28.7 29.0/28.6 28.9/28.6 28.9/28.6 5tPT 1982 27.4/26.0 27.3/26.0 27.3/26.0 27.3/26.0 27.3/26.0 5(g) JULY 1983 27.3/26.0 31.0/30.5 31.0/30.5 31.0/30.5 31.0/30.5 31.0/30.5 31.0/30.5 JUNE 1984 27.0/26.9 27.0/26.9 26.9/26.9 26.9/26.9 27.0/26.9 26.9/26.8 JUNE 1985 26.6/26.2 26.6/26.2 26.6/26.3 26.6/26.3 26.6/26.3 26.6/26.3 JUNE 1986 28.9/28.9 28.8/28.8 28.8/28.8 28.8/28.8 28.9/28.8 28.9/28.9 SEPT 1986 26.6/26.6 26.6/26.6 26.6/26.6 26.5/26.6 26.4/26.7 26.4/26.4 JULY 1987 29.4/29.0 29.3/28.9 29.1/28.8 29.0/28.7 29.0/28.6 29.1/28.6 SEPT 1982 27.3/26.2 27.3/26.2 27.3/26.2 27.3/26.2 27.3/26.2 6(2) JULY 1983 27.2/26.3 31.1/30.7 31.0/30.6 31.1/30.6 31.1/30.6 31.0/30.6 31.0/30.6 JUNE 1984 27.1/27.0 27.1/27.0 27.1/27.0 27.1/27.0 27.0/27.0 27.0/27.0 JUNE 1986 26.3/26.2 26.3/26.2 26.3/26.2 26.3/26.2 26.3/26.2 26.3/26.2 JUNE 1986 28.6/28.5 28.6/28.5 28.6/28.5 28.6/28.5 28.6/28.5 28.6/28.5 SEPT 1986 26.1/26.1 26.1/26.1 26.1/26.1 26.1/26.1 26.1/26.1 26.2/26.1 JULY 1987 28.9/28.5 28.9/28.5 28.9/28.5 28.9/28.5 28.9/28.5 28.9/28.5 SEPT 1982 27.5/26.3 27.4/26.3 27.4/26.2 27.4/26.2 27.4/26.2 27.3/26.2 7-11 JULY 1983 31.5/30.9 31.2/30.7 31.2/30.6 31.1/30.6 31.0/30.6 31.0/30.6 JUNE 1984 27.1/27.1 27.1/27.0 27.1/27.0 27.1/27.0 27.1/27.0 27.1/27.0 JUNE 1985 26.3/26.2 26.3/26.2 26.3/26.2 26.3/26.2 26.3/26.2 26.3/26.2 JUNE 1986 28.6/28.5 28.6/28.5 28.6/28.5 28.6/28.5 28.6/28.5 28.6/28.5 SEPT 1986 26.2/26.2 26.1/26.2 26.1/26.2 26.2/26.2 26.2/26.2 26.2/26.2 JULY 1987 29.0/28.6 29.0/28.6 29.0/28.6 29.0/28.6 29.0/28.6 29.0/28.6 SEPT 1982 27.5/26.4 27.4/26.3 27.3/26.3 27.2/26.3 27.2/26.3 12-29 27.0/26.3 JULY 1983 31.9/31.5 32.0/31.0 31.8/30.8 31.7/30.6 31.7/30.6 31.5/30.6 JUNE 1984 27.4/27.3 27.4/27.3 27.4/27.3 27.2/27.3 27.2/27.2 27.2/27.2 JUNE 1985 26.3/26.2 26.3/26.2 26.3/26.2 26.3/26.2 26.3/26.2 26.3/26.2
' JUNE 1986 28.7/28.6 28.7/28.6 28.7/28.6 28.7/28.6 28.7/28.6 28.6/28.6 SEPT 1986 26.4/26.4 26.3/26.2 26.2/26.2 26.2/26.2 26.2/26.2 26.1/26.1 JULY 1987 29.1/28.7 29,1/28.7 29.1/28.6 29.1/28.6 29.1/28.6 29.1/28.6 SEPT 1982 26.9/26.1 26'.8/26.1 26.8/26.1 26.8/26.1 26.8/26.0 26.8/26.0 30-48 JULY 1983 31.1/30.8 31.1/30.8 31.1/30.6 31.1/30.6 31.1/30.6 31.2/30.6 1
JUNE 1984 27.2/27.2 27.2/27.2 27.3/27.2 27.3/27.2 27.3/27.2 27.2/27.2
' JUNE 1985 26.3/26.2 26.3/26.2 26.3/26.2 26.3/26.2 16.3/26.2 26.3/26.2 JUNE 1986 28.7/28.6 28.7/28.6 28.7/28.6 28.7/28.6 28.7/28.6 28.7/28.6 SEPT 1986 26.3/26.3 26.3/26.3 26.2/26.2 26.2/26.2 26.2/26.1 26.1/26.1 JULY 1987 29.3/28.7 29.1/28.7 29.1/28.7 29.1/2S.7 29.1/28.6 29.1/28.6 SEPT 1982 26.6/26.0 26.6/26.0 26.7/26.0 26.6/25.9 26.6/25.9 26.6/26.0 49-66 JULY 1983 30.9/30.7 30.9/30.7 30.9/30.7 30.9/30.7 30.8/30.7 30.8/30.6 JUNE 1984 27.2/27.2 27.2/27.2 27.2/27.2 27.2/27.2 27.2/27.2 27.2/27.2 JUNE 1985 26.3/26.2 26.3/26.2 26.3/26.2 26.3/26.2 26.3/26.2 26.3/26.2 (4) JUNE 1986 28.7/28.6 28.7/28.6 28.7/28.6 28.7/28.6 28.7/28.6 28.7/28.6 (8) First upstream point (4) Data based on four points
, (2) First downstream point (5) Data based on ten points (3) Data based on eilh t points ENV TN
SUMMARY
TBL 3 - 1
TABLE 4 THERMAL MONITORING SUI 9IARY (WINTER)
DISTANCE FROM EASTERN SHORELINE (FT)
DATE 10 1 20 30 1 40 50 l 60 AVERAGE Iu rtRATURE 'C., SURFACE /5 FT 1-4 FEB 1983 (3)7.5/6.3 I437 .4/6.3 7.3/6.3 7.4/6.3 7.4/6.3 7.3/6.3 FEB 1986 6.4/6.3 6.4/6.3 6.3/6.2 6.3/6.2 6.4/6.2 6.4/6.1 FEB 1987 6.2/6.1 6.2/6.1 6.2/6.2 6.2/6.1 6.2/6.1 6.2/6.2 S
III FEB 1983 7.9/6.4 7.8/6.4 7.8/6.3 7.6/6.2 7.5/6.2 7.5/6.2 FEB 1986 6.6/6.5 6.6/6.5 6.5/6.4 6.5/6.4 6.6/6.4 6.6/6.5 FEB 1987 6.9/6.8 6.9/6.8 6.9/6.9 7.0/6.9 7.2/7.0 7.4/7.1 6(2) FEB 1983 7.4/6.1 7.4/6.1 7.4/6.1 7.4/6.1 7.4/6.1 7.4/6.1 FEB 1986 6.1/6.2 6.1/6.1 6.1/6.1 6.1/6.1 6.1/6.1 6.1/6.1 FEB 1987 6.1/6.0 6.0/6.0 6.0/6.0 6.0/6.0 6.0/6.0 6.0/6.0 7-11 FEB 1983 7.6/6.2 7.6/6.2 7.5/6.2 7.5/6.2 7.5/6.1 7.5/6.1 i
FEB 1986 6.2/6.2 6.2/6.2 6.2/6.2 ' 6.1/6.2 6.1/6.2 6.1/6.1 l FEB 1987 6.0/6.0 6.0/6.0 6.0/6.0 6.0/6.0 6.0/6.0 6.0/6.0 12-29 FEB 1983 7.9/6.6 7.8/6.5 7.8/6.4 7.7/6.4 7.7/6.4 7.7/6.4 FEB 1986 6.4/6.4 6.3/6.3 6.2/6.2 6.2/6.2 6.2/6.2 6.2/6.2 l FEB 1987 6.1/6.0 6.1/6.0 6.0/G.0 6.0/6.0 6.0/6.0 6.0/6.0 30-48 FEB 1983 8.3/6.4 8.3/6.4 8.2/6.3 8.2/6.3 8.2/6.3 8.2/6.3 I
FEB 1966 6.4/6.4 6.3/6.3 6.3/6.3 6.2/6.2 6.Z/6.2 6.2/6.2 FEB 1987(5) 6.1/6.0 6.0/6.0 6.0/6.0 6.0/6.0 6.0/6.0 6.0/6.0 49-66 FEB 1983(6) 8.1/6.3 8.1/6.3 8.1/6.3 8.1/6.2 8.1/6.3 8.1/6.3 FEB 1986 NO DATA NO DATA NO DATA NO DATA NO DATA NO DATA FEB 1987 NO DATA NO DATA NO DATA NO DATA NO DATA NO DATA (1) First upstream point (3) Data based on 2 points (5) Data based on 10 points (2) First downstream point (4) Data based on 3 points (6) Data based on 6 points PENV TM SUMM/,RY TBl. 4 - 1
TABLE 5 THERMAL MONITORING St# MARY SL..R (BARGE SLIP PLUME) 2 Preoperational Operational PA ER SEPT 1982 JULY 1983 JUNE 1984 JUNE 1985 JUNE 1986 SEPT 1986 JUL f 1987 Ambient 28.3 30.6 19.2 23.3 29.0 26.1 26.4 Temperature (*C)
Outfall 001 23.5 18.9 27.1 29.9 36.7 34.4 31.1 Temperature (*C)
Discharge Outlet 24.8/25.8 23.3 N/D 31.0 35.'0/35.0 N/D 32.2/31.8 Temperature (*C)
- Barge Slip PT 1 24.8/26.2 28.2 N/D 30.0 33.4/33.6 35.0 32.2/31.8 Temperature (*C)
- Barge Slip PT 2 24.9/25.8 29.0 N/D 30.8 33.1/33.5 35.0 32.2/30.8 i
Temperature (*C)
- Barge Slip PT 3 25.1/25.8 30.0 N/D 30.r 29.9/28.5 35.0 32.0/30.4 Temperature (*C)
- Barge Slip Outlet 25.4/25.7 31.0 27.0/26.9 29.7 28.6/28.5 N/D 31.2/30.0 to the Miss. River Temperature (*C)
- Upriver N/D 31.2 27.2/27.0 26.4 28.5/28.6 26.3/26.3 28.9/28.6 Temperature (*C)
(SURFACE /5 FT.)
N/D - No Data
- These locations are not fixed reference points.
Points may vary due to river elevation or outfall flow.
PENV TM SilMMARY TBL 5 - 1
TABLE 6 THERMAL MONITORING SLM4ARY WIRILM
- p. O w at.
PARAMETER FEB 1983 FEB 1986 FEB 1987 Ambient 11.5 20.0 14.8 Temperature ('C) ,
Outfall 001 14.4 26.1 22.0 Temperature ('C)
Discharge Outlet 6.9 22.8 27.5/22.9
. Temperature ('C)
- Barge Slip PT 1 .7.0 22.0 22.3/13.3 Temperature ('C)
- Barge Slip PT 2 6.7 21.4 21.9/12.5 Temperature ('C)
- Barge Slip PT 3 6.5 16.1 21.3/13.2 Temperature ('C)
- Barge Slip Outlet 6.4 6.1 21.3/8.9 to the Miss. River Temperature ('C)
- Upriver N/D 6.0 6.0/5.9 Temperature ('C)
(SURFACE /5 FT.)
N/D - No Data
- These locations are not fixed reference points.
Points may vary due to river elevation or outfall flow.
PENV TM
SUMMARY
TBL 6 - 1
l
,, jp'hn 'vh4W4zi -
oxxxZ%%%%w-6%%%%7A46 %%-
i \
,. 6%%%%VHX%$ ;
i
,. reg 6vsxx21 ;
i
,, laws a W / 3 m %) :
l ;.,., ANWNWR,lf///)+ 1w ,..
8
_-n ,, w iR
. AYIM12 4%M i I
RPIRNW ~
! -' hhhM.M i :
, h\\hME! I i
Il _.
), 44%Wl3%Z l h N % W S.13 % %%i
- 1 ..,_ s_ } %_ ,,_ W 4_, N_, -/
L W /. 7 / 4 %- 1 :
! 'i -
\
l h y . . _ _ 7' ,
~'
i 9.., j
=
l
, . ~. .
' j
' *e <
l -
l !' j
- 4
.. - - _,,_,,- - _,,_.i -- ! I lg00000N000h 1
l l
l t
I ww = ww- m--r-- m rew,-~m w w m ,verm , -ur
- - - - - - mm
e t
s
- FIGURE 2 BARGE SLIP MONITORING FEB 87 OUTFALL A Point where offluent leaves 001 -
Dissharge steurture es) e a et free the eissheree strurte um c see et from the Dissharge structure es) !
0 me ft free the Mosherse struetre SW ;
l E M ft free the Discharge Structure $153 F 400 ft free the Diesherge structure ts) l
. ,t m e the mesherse .t a ,e = =
l M M ft into the Disonerse structure Os)
DISCHARGE STRUCTURE A wr. .a=(Ds)
B m.w .a C et.uu.
D mi.wa.m
'. BARGE SLIP i
Emi.uu.m
! F et.an.m l G ar.en.m i an' H tu.en.m . 7n..
i 9.9n.0
.8/it.0 go,ys,g 17.8n.5 gg,yg,[*M'8 l . ..n . .
. . .n . .
i s.On.0 g,gn.0 ,
e Teeperature in soy ees Calcius et surface / S ft.
l FIGURE 3 ;
BARGE SLIP MONITORING - JULY 87 A Point where effluent leaves oleenerse structure Os) OUTFALL e s0 ft free the Dieoneros eteveture Os) 001 C 100 ft free the Discharge Structure 98) 0 300 ft free the Dischaege Structure m )
E 335 ft free the Dischaege Structure WS)
F 400 ft free the Discharge Structure C8) 0 10 ft free the Rivee Outlet H River Outlet
! 30 ft into the River J 40 ft into the river K S0 ft into the river D190ERSE L 80 ft into the river STIEJCTL5E W8)
A (St.3/31. ) "
8 M.2/31.8 l
Cat.3/31.s D M.2/31.0 BARGE SLIP E n .t/31.5 i
r m.um..
6 32.2/30.4 l
H 31.E/30.0 I 30.8/39.4 J 20.4/N.0 e Toeperature in esgrees Celsius et krf ace / 5 f t. K 89.1/M.6 L M .9/M.6
GRAPH i THERMAL MONITORING - SEP 82 AVG. SURFACE TEMP. (degrees Celsius) 40 -
AMIENT UPRIVER 27.4 ,, _
27.3 ,
27.5 ,,y, 9
_g __ __
25 -
20 -
E g MGE p. M 90M g #G g#
LOCATION (10 f t. from eastern shoreline)
GRAPH 2~ ~
THERMAL MONITORING - FEB 83 AVG. SURFACE TEMP. (degrees Celsius) 40 -
l AMBIENT 35 -
UPRIVER
} 30 - ---------
I 25 -
~
! 15 -
79 7,9 8.3 l [ __ _ _.s 901 E a,g gpgg 06 ggpsE S
aM
6.4-------
19, OM 901N p g ,12 Ill g 90 8 g-4------- L LOCATION (10 f t. from eastern shoreline)
GRAPH 3 THERMAL MONITORING - JUL 83 ;
AVG. SURFACE TEMP. (degrees Celsius) 40 -
AMBIENT 35 -
I 31 31 31.i 31.i 30 - cs 25 -
23.3 15 -
10 -
5 -
i
{ 0 901 gE gg@E 19 901 g #N g#
LOCATION (10 f t. from eastern sh'oreline) '
i
- GRAPH 4 l THERMAL MONITORING - JUN 84 i
j AVG. SURFACE TEMP. (degrees Celsius) -
40 -
) AMBIENT 35 -
j . UPRIVER 27.4 28.2 l [ 27 _________________________._ 27 27.1 l:
P g gGE g!SGE 14. I p01 g IN g #W LOCATION (10 f t. from eastern shorelir.e)
i i
! GRAPH 5
- THERMAL MONITORING - JUN 85 i
! AVG. SURFACE TEMP. (degrees Celsius)
- 40 - AMBIENT UPRIVER 31 30.8 29.7 - - - - - - - -
26.6 _,. _, __ h _, 26.3 ___
26.3 26.3 g@E sk@E p. @ 901 @ g #G g #@' ;
! LOCATION (10 f t. from eastern shoreline)
GRAPH 6 THERMAL MONITORING - FEB 86 AVG. SURFACE TEMP. (degrees Celsius) 40 -
AMBIENT
[ UPRIVER g _
B ~
22.8 21.4 15 -
10 -
. 6.6 6.1 6.1 6.4 6.4 po1N gh ggp6E 19 . @ 901M g #12 g#
LOCATION (10 f t. from eastern shoreline)
GRAPH 7 THERMAL MONITORING - JUN 86 AVG. SURFACE TEMP. (degrees Celsius) 40 -
AMsIENT
~
35
- i:t:i:j 33 1 UPRIVER i 30 -
28.9 28.s 28.s 28.7 _
28.7 N pgE 996E 19 . 901Ng g DE g#
LOCATION (10 f t. from eastern shoreline)
GRAPH 8~.
THERMAL MONITORING - SEP 86 AVG. SURFACE TEMP. (degrees Celcius) 40 -
AMBIENT 35 -
- UPRIVER 30 -
. . 26.6 26.1 __
26.4 __
26.3 S #
pol gg 00 ggggE y;, 00 90131p0 N'+ N' 1
LOCATION (10 f t. from eastern shoreline)
NOTE : NO DATA REPORTED FOR OUTFALL & RIV. DUTLET
GRAPH 9 THERMA'<. MONITORING - FEB 87 A'/G. SURFACE TEMP. (degrees Celsius) 40 - AMBIENT LPRIVER 30 27.5 25 -
21.9 21.3 20 -
15 - -
10 -
6.9 6.1 6.1 6.1 S
901 g 0@ gggGE gy , O POIN p g 912 g 930 LOCATION (10 f t. from eastern stioreline)
d l
i
! GRAPH 10 j THERMAL MONITORING - JUL 87 AVG. SURFACE TEMP. (degrees Celsius) 40 -
AMBIENT
~
i
! [ 32.2 32.2 UPRIVER 31.2 3o .
29.4
_ M .. -
M - 28.9 _.
29.1 - - - - - - -
> 2s -
_ ~ . . _ . LOCATION (10 f t. from eastern shoreline) l
APPENDIX III SALT DEPOSITION STATISTICAL ANALYSIS i
J20RPT870224 - III-i
STATISTICAL ANALYSIS OF GRAND GULF DEPOSITION DATA Discussion The Grand Gulf Nuclear Station (GCNS) has an extensive network of monitoring stations used for assessing plant impacts and for gathering basic data, including meteorological. Salt deposition samplers (SDS) have been installed at seven nearby site stations and one distant control site. During 1987, cumulative samples were collected for four quarterly periods. Replicate samples were taken at two sampler locations (stations 2 and 5). For each sample, analyses have been conducted on ten salt parameters: sodium, iron, calcium, fluoride, nitrate, chloride, magnesium, sulfate, phosphates, and total dissolved solids (TDS). Table 1 gives the salt deposition rates provided by environmental, which form the bases for the statistical analyses discussed below.
Presently, the data base is not very extensive (on a year to year basis) and doubt can be cast on the validity of some of the data.
Nevertheless, quantitative estimates of the precision of the data and the relative importance of the various factors which can potentially influence seit deposition rates can be obtained. The former can be quantified by estimating confidence limits for the various data; the latter by statistically analyzing the data by Analysis of Variance (ANOVA). The present statistical analysis uses a two-factor ANOVA which involves calculating T-factors and conducting significance tests for the major potential influences (period, location and the interaction of the two).
The basic statistical model selected for the analysis is as follows:
D ijk
= M+P i
+
j ij
'k(ij) where D = basic SDR (Salt Deposition Rate) data yk M = mean SDR Pg = con,tribution due to sampling period
= contribution due to sampling location L)
= contribution due to sampling period and location PLg ) interactions err r due to sampling, analytical, etc. techniques and ek (ij) = other, unaccounted for, factors Interactions and "experimental" error can be separated in a multiple-factors experiment only if multiple observations are taken at various combinations of sampling periods and sampler locations. Determining confidence limits for the basic SDR data depends on the estimate of "er.perimertal" error for the model; this estimate, in turn, depends on the availebility of replicate samples. Since the latter were obtained only for SDS locations 2 and 5, this statistical analysis will consider only these two locations.
NCIREP STATISTICAL ANALYSIS
l g l For simplicity's sake, a complete balanced block design will be considered; that is three replicate SDRs for each combination of periods (four) and locations (two), or a total of 24 SDR data points for each constituent. The actual data block is incomplete since some SDR data are either not available or are obviously biased. Pseudodata points have been estimated based on available data for the same saepler to complete the data block by minimization of the error sum-of-squares for the model. This is generally a good approximation for a data block with only a small number of missing data points. Table 2. giving the SDR data, includes these pseudodata points.
Calculation Number CC-N1000-88010 was performed for this analysis. Basically one ,
calculates the sum-of-squares for each of the factors of interest (period, location, period-location interaction, and error). Then the F-factors for period, location and period-location interaction relative to basic error are determined as well as an estimate of the confidence limits for the average SDR for any t given period and location. For the purposes of this analysis, 95% confidence '
limits and 95% significance critical F-factors have been considered. Using standard student -t and F distribution tables, other levels of significance are readily determinable, if required. Table 3 summarizes the results of this analysis.
As noted earlier, it is necessary to use replicate SDRs to separate "experimental error" (error between the replicates) from interaction tufluences. The use of composition in ANOVA instead of salt disposition rates may aid in this process ;
as well as provide additional information regarding potential sources of the salt. Composition for an individual parameter (e.g. for sodium, of location 2 ;
period 1, and replicate 1) is determined by dividing the value of the salt deposition rate for the parameter by the sum of the corresponding values for all ,
other constituents other than TDS. A two-factor ANOVA with three replicates is !
then conducted for two locations (2 and 5) and four periods. Table 4 provides a (
suenary of the ANOVA based on composition. l Result of the ANOVA (Table 3) for sampler locations 2 and 5 (with replicate samples) show interaction of sampling period and location on some of the SDRs.
As noted earlier, multiple observations are required to separate interaction and "experimental" error. Even when multiple observations are not available ANOVA ;
analysis can still be perforrmed to evaluate the main effect of an individual l factor. Therefore, the two-factor ANOVA (without replicates) can be performed l for the other sampling
- locations (other than 2 and 5) to evaluate the effect of '
location and period. Table 5 shows salt deposition data (five locations, four periods) for the ANOVA analyses without interaction. This ANOVA calculation was also performed in calculation number CC-N1000-88010. ;
To analyze impacts of environeental factors such as rainfall, vind speed, prevailing vind direction and resultant vind direction, regression analyses may be performed as follows:
(1) Cumulative rainfall for the period versus the salt deposition rate for that period (for all salt depesition rates for sampler locations 2 and 5)
(2) Average vind speed for the period vetsus the salt deposition rate for that period (as above)
NCIREP STATISTICAL ANALYSIS
3 (3) Prevailing vind direction for the period versus salt deposition rates for r that period (as above) ;
l (4) Resultant vind direction for the period versus the salt deposition rate for that period (as above)
For each of the four sampling periods, data for rainfall and the frequency distributions for wind speed and direction have been obtained by reduction of the GCNS veather data. Table 7 summarizes these four environmental factors.
Data points for a regression analysis on a SDR parameter consist of data pairs as follows - an environmental factor for a period and corresponding SDR value of the parameter for the period. The SDR data from sampler locations 2 and 5 were e used for the regression analyses. Table 8 gives the correlati m coefficients i (for each SDR parameter with each environmental factor) as obtained from the regression analyses.
Conclusions (1) The results of the three-way ANOVA based on salt deposition rates indicate the following (Table 3)
Sampling period has significant influence on all SDR parameters except calcium.
- Sampling location had a significant influence on flouride, sodium, nitrate, and phosphate.
Interaction of sampling period and location had no significant influence on the SDR parameters except sodium.
(2) If sources of the deposited salt were the same and variations in SDR vere only due to sampler location, period and their mutual interaction, then the composition of SDR samples for different periods and locations would be l similar to each other and ANOVA based on composition would be expected to show no dependence on the three factors. These results correspond favorably with the results of the three-way ANOVA based on salt deposition I rates. Indicating the sampling period had a significant influence on the ;
SDR parameter. Therefore, the data indicates that seaonsal variations had a significant influence on the deposition of salts. (Table 4)
(3) Two-way ANOVA resulta (Table 6), assuming no interaction between period and i location, indicate the following:
Sampling period had an influence on 7 of the 10 SDR parameters.
- Sampling location had an influence on only one pasameter.
- The gretter number of sampling 1ccetioas used in this analyses appeare ;
to reduce the influence of sampling location and period.
1 i
NCIREP STATISTICAL ANALYSIS
4 (4) Results of linear regression analyses (Table 8) indicate the following:
Significant correlation between rainfall and 7 of the SDR parameters is indicated.
Significant correlation between average wind speed and 8 of the SDR parameters is indicated.
Prevailing wind direction showed significant correlation against 4 SDR parameters with no correlation against 2 SDR parameters.
Resulting wind direction showed significant correlation against the same 4 SDR as the prevailing wind direction and significant correlation against 2 more SDR parameters.
Recommendations
- 1. Results of 0.00 should be avoided. The result should be reported at the detection limit of the method.
- 2. A qualitative, semi-quantitative or quantitative phenomenological model describing salt deposition in a general se.nse should be developed to utilize the monitoring program's data appropriately. Which of the three models is developed should depend on ae uses of the analytical results, the precision and sensitivity required in .ssessing impacts, and the criticality relative to Grand Gulf Nuclear Statica Licensing.
- 3. To obtain better quantification of random sampling / experimental errors, replicate samples should be obtained at all locations and analyzed using exactly the same analytical methods.
- 4. Based on SDR data from the past five years, the sampling program should be re-evaluated to make the program more effective.
S. To determine the effect of the cooling tower, data on circulating water composition may be used in conjunction with the SDR and data on the cooling tower operating conditions and duration.
- 6. A generalized blotk design should be formulated for ANOVA. Along with a phenomenological model, this will provide a means by wh!.ch impacts due to plant operations can be estimated more precisely.
NCIREP STATISTICAL ANALYSIS
. . _ _ _ _ . . _ . . _ . . ~ . . _ _ _
l 1
l TABLE 2 DATA FOR 3-WAY ANOVA
'1987 SALT DEPOSITION DATA LOCATION #2 AND #5 s
CALCIUM-LOCATION PERIOD ENDING 4/7/87 6/30/87 9/30/87 1/5/88 SDS2: 760.79 139.13 75.56 89.05 SDS2a 119.21 194.44 82.78 85.71 SDS2b 171.75 90.16 93.33 92.22 r SDSS 182.06 126.35 176.51 138.57 SDS5a 162.38 122.86 156.98 149.52 SDS5b 143.89 107.94- 133.57 289.37 CHLORIDE
- LOCATION PERIOD ENDING 4/7/87 6/30/87 9/30/87 1/5/88 SDS2 1071.43 74.92 79.37 363.49 SDS2a 1119.05 81.90 81.43 396.83 SDS2b 561.11 80.63 86.98 382.54 SDSS 1215.87 66.67 79.68 339.68 l SDS5a 1117.46 81.90 73.02 1082.54 SDS5b 1209.52 80.95 52.70 341.27 IRON LOCATION PERIOD ENDING 4/7/87 6/30/87 9/30/87 1/5/88 SDS2 87.94 23.17 51.35 29.84 SDS?a 28.57 21.90 51.35 16.51 SDS2b 42.54 32.70 55.40 21.90 SDS5 40.00 29.52 61.67 22.22 >
SDS5a 15.40 42.06 40.32 11.59 SDS5b 32.62 44.13 49.92 26.03 NCITBL 1987 SALT
h;3._
I r FLOURIDE' LOCATION. ' PERIOD ENDING 4/7/87: 6/30/87 __
9/30/87 1/5/88 SDS2 127.62- 5.95 7.70 15.08 SDS2a- 23.03 5.56 :9.76 15.08 SDS2b- 25.63 6.35 8.73- 16.67-SDSS 23.65 6.98 4.48 12.70 SDS5a. 23.65 4.76' 6.35 13.49 SDS5b 22.26 5.56 8.49 13.49 3 y-MAGNESIUM LOCATION PERIOD ENDING 4/7/87 6/30/87 9/30/87 1/5'/88 SD'2 S 50.95 22.30 24.44 39.37 SDS2a 26.51. 22.54 25.48 39.37 SDS2b 35.79 22.70 29.84 38.25 SDS5 33.97 20.63 28.68 36.51 SDS5a 29.05 25.08 28.02 41.59 SDS5b 27.94 25.24 25.27 48.41 SODIUM LOCATION PERIOD ENDING 4/7/87 6/30/87 9/30/87 1/5/88 SDS2 312.70 91.59 60.56 438.41 SDS2a 294.92 79.21 69.84 458.41 SDS2b 310.40 82.70 66.51 457.30 SDSS 223.97 57.78 52.12 346.03
~SDS5a 204.29 97.46 63.65 223.97
-SDS5b 310.71 96.03 59.37 267.78 NITRATE LOCATION PERIOD ENDING 4/7/87 6/30/87 9/30/87 1/5/88 SDS2 453.17 236.51 7.14 330.16 SDS2a 427.78 152.38 7.14 130.16 SDS2b 360.32 282.54 7.94 347.62 SDSS 488.10 300.00 161.11 339.68 SDS5a 488.10 376.19 12.70 358.73 SDS5b 465.08 352.38 5.56 284.13 NCITBL 1987 SALT
l u- .,
(' *
~n- ~
PHOSPHATE LOCATION PERIOD ENDING 4/7/87 6/30/87 9/30/87 1/5/88 SDS2' 110.00 23.81 14.29 60.32 SDS2a 103.65 22.22 14.29 60.32 SDS2b- 102.06 25.40 15.87- 66.67 SDSS 94.13 12.70 7.94- 50.79 SDS5a 94.13 19.05 9 .52 53.97 SDS5b 6.19. 4.73* 4.73* 2.54
- Calculat'd SULFATE LOCATION- PERIOD ENDING 4/7/87- 6/30/87 9/30/87 1/5/88 SDS2 900.95 417.46 346.03 430.16
-SDS2a 850.16 452.38 366.67 430.16 SDS2b 555.71 398.41 377.78 487.30 i
SDS5 970.79 395.24 416.67 425.40.
SDS5a 970.79 452.38 352.38 720.63 SDS5b 934.92 468.25 368.25 426.98 TOTAL DISSOLVED SOLIDS LOCATION PERIOD ENDING 4/7/87 6/30/87 9/30/87 1/5/88 -
SDS2 50269.84 2285.71 2222.22 603.17 SDS2a 54968.25 1253.97 158.73 1269.84 SDS2b- 55571.43 4126.98 1126.98 1365.08 SDS5 42142.86 2396.83 1809.52 1650.79
- CDS5a 32793.65 492.06 4238.10 11396.83 SDS5b. 50428.57 35739.94* 3412.70 11968.25
- Calculated l
l' l
NCITBL 1987 SALT
h TAME 3 - SIMfM OF AMNA F-Factors Average 95% Caifid ece Depositim Intanal For Period For Incation For Interaction -
Parmeter Ngh%2/ Period MgM2/ Period Calc (2) Crit (3) Cale(2) Crit (3) Calc (2) Crit (3)
- 1. Calcita 161.84 1 160.58 1.42 3.24 0.03 4.49 1.49 3.24 -
- 2. Osloride 421.71 ! 230.14 35.% 3.24 2.18 4.49 .0.86 3.24-
- 3. Itun 36.61 16.43 5.55 3.24 0.53 4.49 1.86 3.24
- 4. Fluoride 13.04 2 1.59 249.06 3.24 11.20 4.49 1.00 3.24
- 5. Magnesita 31.16 6.37 13,28 3.24 0.08 4.49 1.21 3.24
- 6. Sodita I E 90 38.35 133.58 3.24 21.97 4.49 9.61 3.24
- 7. Nitrate 265.61 77.62 43.85 3.24 8.19 4.49 0.35 3.24
- 8. Ihosphate 40.80 25.60 15.67 3.24 6.36 4.49 0.78 3.24
- 9. Sulfate 538.16 113.48 34.47 3.24 3.84 4.49 1.18 3.24 10.1DS 15570.51 1 9846.61 43.00 3.24 0.35 4.49 2.22 3.24 Notes
- 1. For all saples (4 periods, 2 Incarf=, 3 replicates
- 2. Calm 1mted F-Factor (Felative to seen aquare for error)
- 3. 95% cririen1 F-hetor
TABLE 4 - SLMiARY OF ANOVA (BAED CN CIMPOSrnCFO F-FACIORS ICR PIRICO FOR IOCATICN RR INIIRACTICN PARAMEIER F1 F2 F-GIT F1 F2 F-GIT F1 F2 F-GIT
- 1. ca1 Min 1.42- 4.93 3.24 0.03 0.34 4.49 1.49 3.38 3.24
- 2. Ottoride 35.% .39.28 3.24 2.18 0.% 4.49 0.86 1.46 3.24
- 3. Irco 5.55 139.67 3.24 0.53 2.69 4.49 1.86 4.11 3.24
- 4. Fluoride 249.06 8.20 3.24 11.20 7.29 4.49 1.00 1.05 3.24
- 5. Magnesite 13.28 59.76 3.24 0.08 2.69 4.49 1.21 0.37 3.24
- 6. Sodita 133.58 27.59 3.24 21.97 13.83 4.49 9.61 3.94 3.24
- 7. Nitrate 43.85 23.39 3.24 8.19 4.53 4.49 0.35 0.81 3.24
- 8. Phosphate 15.67 3.54 3.24 6.36 14.78 4.49 0.78 . 0.18 3.24 -
- 9. Sulfate 34.47 140.34 3.24 3.84 0.36 4.49 1.18 4.07 3.24 Notes
- 1. F1 is the F-Factor for AWA based cn Salt Depsition rates.
- 2. F2 is the F-Factor for #INA bc. sed cc ccepositicn.
- 3. F3 is 95% critical factor.
NCITBL NOVA SLMi - 4
=,
f wr t w w-- 'w
E TABLE 5 DATA FOR 2-WAY ANOVA 1987 SALT DEPOSITION DATA LOCATIONS 1, 3, 4, 6, and 7 CALCIUM LOCATION PERIOD ENDING 4/7/87 6/30/87 9/30/87 1/5/88 SDS1 438.42 138.79 185.91 403.90 SDS3 209.84 98.73 83.17 95.24 SDS4 183.02 80.95 69.52 87.78 SDS6 121.07 68.11 .71.88 87.42 SDS7 90.32 158.73 45.48 59.68 CHLORIDE ~
LOCATION PE'RIOD ENDING 4/7/87- 6/30/87 9/30/87 1/5/88 SDS1 985.71 94.87 69.48 353.22 SDS3 1190.48 62.86 92.06 298.41 SDS4 1153.97 85.71 83.49 377.78 SDS6 1107.24 79.77 80.76 338.19 SDS7 1223.81 184.76 90.48 306.35 IRON LOCATION PERIOD ENDING 4/7/87 6/30/87 9/30/87 1/5/88 SDS1 106.05 51.05 59.68 53.39 SDS3 53.65 40.95 39.52 11.59 SDS4 26.35 38.41 37.78 34.60 SDS6- 22.09 50.50 65.59 16.54 SDS7 76.51 20.48 29.21 6.83 FLUORIDE LOCATION PERIOD ENDING 4/7/87 6/30/87 9/30/87 1/5/88 SDS1 22.86 4.38 4.12 12.72 SDS3. 25.24 3.17 5.56 13.49 SDS4 24.44 4.76 6.19 14.29 SDS6 22.87 6.31 20.45 14.69 SDS7 22.86 12.70 2.78 8.73 NCITBL 1987 SALT
l MAGNESIUM LOCATION PERIOD ENDING 4/7/87 6/30/87 9/30/87 1/5/88 SDS1 100.54 45.89 62.34 87.65 SDS3 46.67 23.49 25.63 41.59 SDS4 35.08 25.08 21.13 34.29 SDS6 25.68 23.27 21.29 36.75 SDS7 237.62 39.68 15.40 30.32 SODIUM LOCATION PERIOD ENDING 4/7/87 6/30/87 9/30/87 1/5/88 SDS1 657.81 94.18 54.06 419.18 SDS3 249.37 65.40 75.95 287.30 SDS4 231.43 88.57 72.54 261.59 SDS6 199.61 91.21 78.22 198.36 SDS7 202.22 149.21 43.02 163.02 NITRATE LOCATION PERIOD ENDING 4/7/87 6/30/87 9/30/87 1/5/P8 SDS1 528.49 291.30 2.51 310.61 SDS3 415.08 223.81 8.73 298.41 SDS4 757.94 84.13 7.94 377.78 SDS6 1058.47 373.88 37.94 357.95 SDS7 376.98 252.38 0.79 120.63 PHOSPHATE LOCATION PERIOD ENDING 4/7/87 6/30/87 9/30/87 1/5/88 SDS1 90.95 17.53 2.24 50.89 SDS3 100.48 12.70 17.46 53.97 SDS4 97.30 19.05 15.87 57.14 SDS6 91.01 22.22 15.87 58.75 SDS7 90.95 50.79 1.59 34.92 NcI!BL 1987 SALT
T' SULFATE
' LOCATION PERIOD ENDING 4/7/87 6/30/87 9/30/87 1/5/88 SDS1 939.05 508.29 323.84 483.29 SDS3 877.14 347.62 400.00- 358.73.
SDS4 1002.54. 426.98 395.24 441.27 SDS6 866.26 466.88 456.38 435.75 SDS7 769.19 595.24 249.21 368.25 TOTAL DISSOLVED SOLIDS
~ LOCATION PERIOD ENDING 4/7/87 6/30/87 9/30/87 1/5/88
.SDS1 57462.05 2440.78 1048.70 2798.16 SDS3 55412.70 682.54 2095.24 1142.E6 SDS4 35412.70 1253.97 1063.49 1206.35 SDS6 33583.15 23868.54* 3403.83 587.51
.SDS7 28365.08 20080.90* 1380.95 349.21 P
- Calculated r
t F
i-6 NCITBL 1987 SALT
TABLE 6 - SLM RRY OF ANOVA (NO IN11RATIW BE1WEIN PERICD AND IDCATIm)
Average 95% Ccnfidence F-Factors Deposition Rate Interval For Period For location Parmeter MgM2/ Period lghf /2 Period Calc (2) Crit (3) Cale(2) Crit (3)
- 1. Calcitan 138.90 ! 74.67 2.87 3.49 6.39 3.26
- 2. Otloride 412.97 ! 59.37 409.22 3.49 1.06 3.26
- 3. Iron 42.O'4 21.54 2.12 3.49 2.34 3.26 4 Fluoride 12.63- 4.74 16.28 3.49 0.84 3.26
- 5. Magnesitan 48.97 1 48.74 1.93 3.49 1.38 3.26
~ 6. Soditan 184.11 ! 109.44 7.23 3.49 1.92 3.26 7 Nitrate 294.29 154.73 15.97 3.49 2.06 3.26
- 8. Phosphate 45.08 12.12 54.63 3.49 0.26 3.26
- 9. Sulfate 535.56 ! 88.76 43.62 3.49 0.81 3.26
- 10. IDS 13681.94 ! 10601.02 19.67 3.49 0.28 3.26 Notes
- 1. For all sanples (5 locaticns, 4 periods)
- 2. Calculation F-Factors (relative to mean square for errrors)
- 3. 95" critical F-factors l
NCITBI. ATVA SLMi - 6
- u. .
TABLE _7_
ENVIRONMENTAL FACTORS rainfall average prevailing resultant period .in./ period _' wind speed wind dir.. wind dir.
ending -sds 2 sds.5~ m/seo degrees degrees 4/7/87 25.85 20.80 3.86 337.5 159.8 6/30/87 11.10 9.60 2.69 135.0 122.2 9/30/87 9.10 9.05 2.05 225.0 111.9 1/5/88 13.90 12.45 3.31 112.5 105.0 i
f f
4 I
2 l-
TABLE'8 -
SUMMARY
OF REGRESSION ANALYSIS CORRELATION COEFFICIENT BASED ON Average Wind Prevailing Resulting Pr:ramete r Rainfall Speed Wind Direction Wind Direction
- 1. Calcium ~0.47 0.35 0.34 0.39
- 2. Chloride 0.83 0.84 0.61 0.71
- 3. Iron 0.06 -0.30 0.43 0.19 ,
- 4. Fluoride 0.94 0.88 0.67 ,
0.73
- 5. Magnesium 0.41 0.54 -0.00 -0.02
- 6. Sodium 0.57 0.76 0.00 0.13 ,
7 .' Nitrate . 0.69 0.87 0.26 0.63
.8. Phosphate 0.84 0.78 0.48 0.60
- 9. Sulfate 0.82 0.79 0.69 0.82
- 10. TDS 0.88 0.72 0.77 0.89 e
l l
r l
NCITBL AMOVA SUMM - S i
APPENDIX IV ENVIRONMENTAL EVALUATIONS i
j J20RPT870224 - IV-1
i 1 ' GRAND CULF NUC EAR STATION ADMINISTRATIVE PROCEDURE l 01-S-06-24 -
Revision 10 [~
g l Attachment I Page 3 of 4 l G l l 6
i4 l 7. QA RECORD l l V RT -814.33 l l . WON-QA RECORD l l 1d34 IIITIALS ~l lFJ NO. OF PAGES l l 9- T- F7 DATE l
/ NTITM/ SAFETY / ENVIRONMENTAL EVALUATION FORH*
PART I /MXREF/ DOC. EVALUATED 87-00l[O /EIDOCNO/ EVALUATION NO. 631/A'7
/M/ REFERENCES l'nat o I 1402 8 /MSYSN0/ SYSTEM AFFECTED N )_
Requires a change to the FSAR / If Yes, C/R No.
fes T N
DESCRIPTION fr eatic_ M W sh Men A A d , a h,'a n h o$ M r
- . - falnus.+e B o, n d:eA' S v k u d fan.rs ' ba 1 ,'t w
- c nn o l e e te ,*e n t 1/D .
~
J '
cc h er-teleL % fola LVedan41en .# 61f./ 8 ~1 Requires an environmentil evaluation X _ If Yes, Complete CN Yes No Part III SAFETY EVALUATION N PART II YES NO IMPLEMENTATION OR PERFORMANCE OF THE ACTIVITY DESCRIBED ABOVE:
- c. . / (a) Requires a change to the GGNS Technical Specifications.
f BASIS 6e e_ neched V (b) Increases the probability of occurrence of an accident previously evaluated in the FSAR.
LI: BA3IS Sea cif-c h a c_)
D ~ ~/ (c) Increases the consequences of an accident previously evaluated in the FSAR.
BASIS 3 P_ P dO Eb ed O ! (d) Creates the possibility of an accident of a dif ferent type than any evaluated in the FSAR.
BASIS c, e e a4f n e_ h e d (e) Incret es the probability of occurrence of a malfunction of equipment important to safety previously evaluated in the FSAR.
BASIS e, e p_ a4M_ loa
/ (f) Increases the consequences of a malfunction of equipment important to safety previously evaluated in the FSAR.
BASIS feF a tt a c_ k e d
/ (g) Creates the possibtitty of a malfunction on a dif ferent type than any evaluated prqvioysly in the FSAR.
BASIS se e affeched j (h) Reduces the margin of safety as defined in the basis for any Technical Specifications.
et th / f /k-8 '
PSRC "
/
IDATE '
/MORIG/ l0 GINATOR DATE
% .ld .....u / C- s t. 8 7 J
APg0VfB/ DATE
- Additional sheets may be used and attached as necessary.
01-S 06-24 ATT I
l ATTAC1 DENT TO SATETT EVALUATION NO. O 31 / 8 7 l
Part II
.a) This lifted lead does/will not cause the rad monitor and audible alarm functions of the Radvasta Vent system to become inoperable but in the event of failure, the actions required by T.S.
(3.3.7.12) are still applicable and adequate. Tech Specs does not address the trip of the Radwaste ashaust fans. No change to Tech Specs is required. ,
b) SER 9.4.3 (paragraph 4) addresses the failure (loss) of the Radwaste Building Ventilation System and concludes that this
- failure vill not compromise the safety functions of essential systems or result in release of unacceptable amounts of radioactivity.
In s'ddition, all filtration and audible alarus of the system remains intact and radioactivity levels are presently acceptable.
This system is also classified as being non-safety related.
c) See (b).
d) Se e ' (b) . The system still performs its intended functidn. and no new accidents of a different type vill result because of this 1 sad being lifted, e) See (b) . Preventing the exhaust fan from not tripping vill not cause any other equipment to malfunction or fail.
f) See (b) and (e).
g) See (b) and (e). .
b) The margin of safety as defined in the basis of any Tech Specs is not changed by lifting the lead and preventing the trip of the Radwaste Exhaust fans. This trip is not addressed in Tech Specs and there is no requirement for it to be.
W
' 2.0 -p n n =_ J PTEC SAFETY EVALUATION - ATT - 1
ADMINISTRATIVE PROCEDURE GRAND GULF NUCLEAR STATION i Reviston 10 Tl' I' l 01-S-06-24 ! Page 4 of 4 l l Attachment -l g l~
y ENVIRONMENTAL EVALUATION
- xi OSl / B7-E Valud(C A NO. -
PART III YES No IMPIE.MENTATICII OR PERFORM #.WCE OT THE ACTIVITT
/ (a) Requires a caanse in the Environmental Protection Plan.
BASIS See n Rad ed Concerna a matter which may result in a significant
! (b) increase la any adverse environmental impact previously evalu.ated in the Tinal Environmental Statenest d (TES) as modified by the staff's testimony to the Atomic Safety an impact appraisal,eade dor in any decision of the ASLB. _
BASIS _ Sre d Concerns a significant chanze in effluents or power level.
W _
g (c)
BASIS _ Se e d ene MI m l w / (d) Concerns a matter not previously reviewed and evalu adverse environmental i set, /A _
cv BASIS '_6 e #_ d it a i a-31-a,_
ed a A Tn i,n&Y iNd7 !
C. euw(/L.
JMORIG/ ORIG JA OR DATE PLR'J ' / V p'"'
b DATE
- 40 kab /We87 _
APPROVED DATE to CN
- Additional sheets say be used and attached as necessary.
C 01-S-06-24 AIT I l
e _ 41
ATTACHMENT TO ENVIRONMENTAL EVALUATION NO. 031/87 PART III l
(a) The Environmental Protection Plan makes no reference to the High-High Radiation trip function of the Radweste Building l Ventilation Radiation Monitor, therefore, no change is required 1 to the Environmental Protection Plan.
(b) The removal of the High-High Radiation trip of the Radvaste Building Exhaust Fans will not result in a significant increase in any adverse environmental impact previously evaluated in the Final Environmental Statement (FES). This is because no credit for the trip of the Radweste Building Exhaust Fans to reduce radioactive releases was taken in developing the routine operation estimated site-specific radioisotope release values used in the FES evaluation. The release value estimatec were developed using the calculational model and parameters developed in NUREG-0016, BWR-Gale Code (FES 5.9.1.1.2(3)).
Also, the Radvaste Building Vent. Radiation Monitor is non-safety Telated (UTSAR 7.6.1.2) and is therefore not expected to perform any safety function during an accident, including a Hish-High Rad. Trip of the Radwaste Building Exhaust Fans (UFSAR 15.7.1.2.3 and 15.7.2.2).
(c) A significant change in affluents or power level will not occur due to the removal of the trip function because no credit is taken during routine operations or accident situations for the reduction of radioactive releases due to the trip of the Radwaste Building Exhaust Fans from a High-High Rad level trip signal
' on the Radwaste Building Vent. Rad. Monitor. Hence all routine 2nd accident releases from the Radwaste Building Exhaust at GGNS will be the same as previously evaluated in the FES, FER and UFSAR. Therefore, routine releases are expected to ressin very small and capable of staying within 10CFR Part 20, 10CFR Part 50 App. I, and 40CFR Part 190 release limits (FES 5.9(2) and 5.9.1.2, FER 5.2.4.2, and UFSAR 11.3.3.4).
It should be noted that the release limits for CGNS are not being changed. GGNS must still abide by 10CFR Part 20, 10CTR Part 50 App. I, and 40CFR Part 190 release limits.
Power level will not be effected because the Radvaste Building Vent. Rad. Monitor High-High Rad. trip signal is totally l
independent of power level control. The trip of the Radvaste Building Exhaust Fans does not isolate the Offgas System nor does it shut down the reactor.
i PHPC ATTACHMENT ENVIRO EVAL - 1
~
m ATTACHMENT TO ENVIRONMENTAL EVALUATION NO. 031/87 FART III (continued)
(d) See (b) and (c). The removal of the High-High Rad. level trip of the Radwaste Building Exhaust Fans does not concern a matter not previously reviewed and evaluated in documents specified in (b) above because no credit was ever taken for the reduction of radioactive releases due to the trip of the Radwaste Building Exhaust Fans from a High-High Rad. level signal on the Radwaste Building Vent. Rad Monitor.
.. l h ^
k[e -3 /- 9 7 l
l e
O PHPC ATTACHMENT ENVIRO EVAL - 2
.' GRAND GULF NUCI. EAR STATION ADMINISTRATIVE PROCEDURE l 01-S-06-24 Revisien 10 l'
l Attachment I Page 3 of 4 l I l.
1 l QA RECORD l )
l RT -B14.33 l l
l NON-QA RECORD l l INITIALS l l NO. OF PAGES l I mu I
/ M / SAFETY / ENVIRONMENTAL EVALUATION FORN*
PART I /M DOC. EVALUATED CWA *S(,adof/fE0 Ell 5/ EV'ALUATION No. o3f4/G/
/N/ REFERENCES 0FJMt M .n.a /iBYIll5/ SYSTEM AFFECTED A/ ors Requires a change to the FSAR If Yes, C/R No.
J DESCRIPTION 5FE 477c.ATO .2MSct// Foal Requires an environmental evaluation 1 ___ If Yes, Complete Yes No Part III SAFETY EVALUATION PART II ns No IMPLEMENTATION OR PERFORMANCE OF THE ACTIVITY DESCRIBED ABOVE:
_,,,,_ 1 (a) Requires a change to the OGNS Technical Specifications.
BASIS San Arnegan SNeM-1 (b) Increases the probability of occurrence of an accident l previously evaluated in the FSAR.
BASIS SEF AfD9CAWB waarr
,,,,_ 1 (c) Increases the consaquences of an accident previously evaluated in the FSAR.
BASIS - symr4we %may-
___ 1 (d) Creates.the possibility of an accident of a different type l than any evaluated in the FSAR.
Sn" ArirocesD swsy- }
BASIS 1 (e) Increases the probability of occurrence of a malfunction of equipment important to safety previously evaluated in the FSAR. l' BASIS M s M A t A alp A w I 1 (f) Increases the consequences of a salfunction of equtpoent important to safety previously evaluated in the FSAR.
BASIS N emstum MM i (3) Creates the possibility of a malfunction en a different type than any evaluated previously in the FSAR. '
BASIS Apr A2aeMen daar 1 (h) Reduces the margin of safety as defined in the basis for any Technical Specifications.
BASIS ddF #AR3W'D &/dFTA i 1
/ 9lIs/84 /
U.b ATE Y .
}
iI tmv ' '/' ' DATE l
APPROW.F
' DATE
- Ad onal sheets may be,used and attached necessary. -
01-S-06-24 ATT I
.a. -
l ADM8N!STRATIb
T. PROCEDURE
GRAND GULF NUCLEAR STAT 80N I
l 01-S-06-24 (Revision 10 l, l Attachment I lPage 4 of 4 I I
I ENVIRONMENTAL EVALUATIO_N PART III YES NO IMPLEMENTATION OR PERFORMANCE OF THE ACTIVITY DESCRIBED ABOVE:
~~
g (a) Requires a change in the Environmental Protection Plan.
BASIS eo areke,cp 5 s/44.t-g (b) Concerns a matter which may result in a significant
_ increase in any adverse environmental impact previously evaluated in the Final Environmental Statement (FES) as modified by the staff's testimony to the Atomic Safety and
' Licensing Board (ASLB), supplements to the FES, environmental impact appraisal, or in any decision of the ASLB. '
BASIS $12. ATracuar0 6det.f (c) Concerns a significant change in effluents or power level.
1 . BASIS sa_ aetuWim wed g (d) Concerns a matter not previously reviewed and evalu.ated in ,
l documents specified in (b) above, which may have a significant ~
adverse environmental impact. .
BASIS S'a - .fo444:n 5 W=T T.
/ 1lt0ln I Y.b DATE SRC DATE
/MORIG/ ORIGINATOR ,
/ // A /1-1-E 7 DATE EVIEWED /DATE ,
APP 50VED
- Additional sheets may be used and attached as necessary.
9 01-S-06-24 ATT I t
4
. , . . _ _ _ _ _ . _ _ _ . - . _ _ - . - ~ _ ..._.,,___,._._.__.,___...-.._m..___,..__ . _ _ _ _ , . . _ , _ _ . , , _ . _ . _ , . - . _ . . . _ . ~ - - - - .
l I
I l
Part I Safety Evaluation # 033 /87 Doc. Evaluation: CWA #560205
Reference:
UFSAR Section 2.2
Description:
This CWA constructs an underground 11,000 gallon bara for the temporary storage of a 7,500 gallon tank trailer during the time required to obtain the results of the required oil samples prior to unloading tank trailer into the emergency diesel generator underground storage tanks.
Part II Safety Evaluation (a) This installation does not require a change to the GGNS Technical Specifications because it will only be used as temporary storage outside the Unit I Protected Area while awaiting the results of the required oil samples from the Off-Site Vendor. The tank trailer will be locked with a locking device as described in 02-5-01-2 following sampling by Chemistry and will remain ' locked until the results of the oil samples are recevied and the tank trailer is ready to be unloaded into the emergency diesel underground storage tanks. 'These actions will ensure the validity of the surveillance requirements that already exist in Tech Specs.
(b) There is no increase in the probability of occurrence of an accident previously evaluation in the FSAR because the temporary storage of No. 2 fuel oil will only occur for a period of five to seven days every two to three months. Since the FSAR already evaluates contineous storage of 10,000 gallons of.No. 2 fuel oil at the fill-up area adjacer>c to the South Gate the temporary storage of 7,500 gallons does .'.ot increase the probability of an accident.
(c) There is no increase in the coneequences of an accident previously evaluated in the FSAR because the evaluation of the results of a fire in the 10,000 gallon No. 2 fuel oil tank at the fill-up area bounds the 7,500 gallon temporary storage of No. 2 fuel oil. The
( berm in which the tank trailer is parked when loaded with fuel, has a capacity of 11,000 gallons which is. sufficient to totally contain the contents of the trailer. This will restrict any postulated fire to the bara area thus preventing common mode failures with any existing fuel oil storage.
(d) The temporary storage of 7,500 gallon of No. 2 fuel oil does not create the possibility of an accident of a different type than any evaluated in the FSAR because storage tank fires are already evaluated in the FSAR.
(e) The temporary storage of 7,500 gallons of No. 2 fuel oil does not increase the probability of occurrence of a malfunction of equipment important to safety previously evaluated in the FSAR because the temporary storage is located outside the protected area and not in the proximity of any equipment important to safety.
l I
l
(f) The temporary storage of 7,500 gallons of No. 2 fuel oil does not increase the consequences of a malfunction of equipment important to safety previously evaluated in the FSAR because it is bounded by present FSAR evaluations.
(g) This installation does not create the possibility of a malfunction of a dif f erent type than any evaluated previously in the FSAR because this type of storage is evaluated in the FSAR.
(h) This installation does not reduce the margin of safety as defined in the basis for any Technical Specification because it is totally bounded by present FSAR evaluations and has no affect on any Tech.
Spec. basis.
Part III
~
Environmental Evaluation (a) Does not require a change in the Environmental Protection plan because the berm in which the tank trailer will be parked when it is loaded with fuel is capable ofstotally containing the total contents of the tank trailer.
(b) See answer to (a)
(c) See answer to (a)
(d) See answer to (a)
\
t
{
O
GRAND GULF NUCLEAR STATION ADMINISTRATIVE PROCEDURE l 01-S-06-24 IRevisien 10 l' '
l Attachment I lPage 3 of 4 l I I i t
l QA RECORD l l RT -B14.33 l j NON-QA RECORD l l INITIALS l l NO. OF PAGES l l MM l
~ /~HTITI.2/ SAFETY / ENVIRONMENTAL EVALUATION FORM
- PART I i
/M DOC. EVALUATED CV-1-41-/9/+hffE6@/ EVALUATION No. /JM 7
/N/ REFERENCES Trukres/upur _ /iiiiYEi5/ SYSTEM AFFECTED /
Requires 2 change to the FSAR V If Yes, C/R No.
M F DESCRIPTION brW /M pr>druder,J b dam red c /m e'n d ,
%dha %rv*ree IAhG Loens A a.nd L dur% RFo 1. ,
r Requires an environmental evaluation V If Yes, Complete M F., . Part III
~
SAFETY EVALUATION I PART II YES NO IMPLEMENTATION OR PERFORMANCE OF THE ACTIVITY DESCRIBED ABOVE:
~
i (a) Requires a change to the CGNS Technical Specifications.
BASIS $as of4AcAfd SAdef
$ (b) Increases the probability of occurrence of an accident previously evaluated in the FSAR.
! BASIS Tes M/Ac/4ed flids/
X (c) Increases the consequences of an accident previously evaluated in the FSAR.
BASIS Tee L//acled Shes/
/ (d) Creates the possibility of an accident of a different type
, thas any evaluated in t!}e TSAR.
l BASIS h ad/ ached S/tae4 l / (e) Increases the probability of occurrence of a malfunction of equipmentimportanttos1fetypr9viouslyevaluatedintheFSAR.
BASIS See d /at h 3Aest i
i (f) Increases the consequences of a malfunction of equipment I
important to safety previously e+ valuated in the FSAR.
l BASIS See (A.Ha.c. had .54as
/ (3) Creates the possibility of a malfunction on a different type .
than any evaluated previgusly in the FSAR.
SASIS ke tLSS6 Chad Sheth i (h) Reduces the sargin of safety as defined in the basis for any Technical Specificati ns SASIS See a.H de eh S$1tAY Ark / M/' erin h$Yf / /2A/$7 TATE i
/ q pAfGINATOR Lr -
' DA
/ als,TEIn PSKC'
/
APPRutt.f l DATE
- Additional sheets may be used and attached as necessary.
01-5-06-24 ATT I t
_ . _ _ . ~ . . . _ _ _ . _ _ _ _ . _ _ _ _ _ _ _ _ . _ _ _ _ . . _ _ _ _ , . _ - _ _ _ . - . . _ _ . _ , , . , _
GRAND GULF NUCLEAR STATION ADMINISTRATIVE PROCEDL'RE l 01-S-06-24 I Rivisisa 10 l '
l Attachment I Page 4 of 4 l l l ENVIRONMENTAL EVALUATION PART III YES N, 0, IMPLEMENTATION OR PERFORMANCF OF THE ACTIVITT DESCRIBED ABOVE:
,,X,, (a) Requires a change in the Environmental Protection Plan.
~
~
~
BASIS l'leamnq ehemical ex),ts/s niill be held on OVe in ()nN )
Cooling 1 tower OtStr1 until of Meth discharj& sta.na'a.rds
)( (b) Concerns a sitter which may result in a significant -
increase in any adverse environmental impact previously evaluated in the Final Environmental Statement (FES) as modified by the staff's testimony to the Atomic Safety and Licensing Board (ASLB), supplements to the FES, environmental impact appraisal, or in any decision of the ASLB.
BASIS No clu Mo s in Chemt e A_l UJask trilerid Is netH5a v/
See (0,ya Deve.
X (c) Concerns Se6a sig(nificant
- d. ') 16cvechange in effluents or power level.
BASIS ..
1 (d) Concerns'a matter not previously reviewed and evaluated in documents specified in (b) above, which may have a significant l adverse. environmental impact.
BASIS Se4 Nefe i be fotu t
/)' f ///2?)??-
DATE RC ' /
l/2YQ DATE'
/MORIT ORIGINATOR f I'[9 #[% 7
- gnq t h ED / DATE
'KPPROVED f #44' /DATE
- Additional sheets may be used and attached as necessary.
e Ah L Chemscal waste cbscharges a.re a.pwyed a.f}er chemuca.
+o en s u es sil ye le a.se c ri le vla-. a.re m e+. demsca.I clea.ning ,
wasle wnt not be reinses' ankl a.Il release crilerta a re meh Gee (a.) o bove.
01-S-06-24 ATT I f
- \
' ~
P4AT E OD Offec}ed SStd L c*0'.g. w ;// nel be re/ aired /n curren t a
mede*. y n.n a.Spfem performance pest c/eaniny- w.// be vertfted le ensure a ll dosGn flou> crileria a re me f.
Or') Tite palenled cleaning process u>itt remere he kling.
layer -from the Ssa.) pipe /c.ompnenf surfaces, On s:le lesAs cenRrmed % sauessful remeu.I of Me-lcui irg wiH> cut d'egrda. hen ef Me base me/al. Condu +
cf YAis prceedure. uJlll tmyrsye SyS /em. (2er (orma n e e.
(c) See.C4)
(d) Ong;le. /esis cenRrm 5 uccessfu/ cleaning can be. accomplislie/
w:H>co+ deges.da. hon of he base meh./ or compnen/s.
FSAR a.cciden+ a.na. lysis a.re /here fore. unchanged.
(e) 7Ae demical cleantng will improve. sy.sfem perform anc e.
- ) See (e)
(g) see (d) 8). See (s)
APPENDI" V NON-ROUTINE REPORT 1
J20RPT870224 - V-i i
Mnoim um,IM.
i<vAs E r%is .n
>e~;
un w November 24, 1987 Mr. Larry Hamil Mississippi Department of Natural Resources Bureau of Pollution Control Post Office Box 10385 Jackson, Mississippi 39209
SUBJECT:
Grand Gulf Nuclear Station Unit 1 Calgon H-102 Biocide in PSW' Discharge File: 0260/15330 APO-87/ 0896
Dear Mr. Hamil:
On November 20, 1987, the Grand Gulf Nuclear-Station Plant Service Water (PSW) discharge was directed to Sediment Basin 8 to facilitate maintenance outage activities. This discharge resulted in a fish kill in Sediment Basin B because biocide treatment to the incoming water had not been discontinued. The administrative procedure governing nonradiological discharges is being revised to require suspension of biocide treatments during periods where PSW flow is diverted from its normal path.
Initial assessment of this incident by Environmental Surveillance Program personnel indicated effects were acute and confined to Sediment Basin B.
This report meets the five-day noncompliance notification required by the NPDES Permit, and a more detailed report will be submitted by December 18, 1987.
If you have questions, contact Ms. R. R. Jackson, Acting Manager, Radiological & Environmental Services, at 949-9217.
Sincerely, M
JDB/RRJ:aly cc: (See next page)
- .: . , .t: : . .a 3: i e.
J20AF087112402 ' ::' e ' ::':- '
- APO-37/ 0896 Page 2 of 2
/ :
cc: Mr. G. E. Anderson Mr. W. C. Angle Mr. T. H. Cloninger Mr. M. L. Crawford ,
Mr. J. E. Cross Mr. C. R. Hutchinson 4
Mr. O. D. Kingsley ,
Dr. L. R. McKay Mr. J. V. Parrish Mr. B R. Rogers (MDNR)-
File Central) ( 2 )
File ENV) i File NS) -
File R&ES)
Dr. J. Nelson Grace Regional Administrator s U. S. Nuclear Regulatory Commission '
Region II i
101 Marietta Street, N. W., Suite 2900 Atlanta, Georgia 30323 .
e 1
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J20AP087112402
RESOUFCEE, INC.
1 Ews December 18, 1987 u .~.-
Mr. Charles Chisolm Mississippi Department of Natural Resources Bureau of Pollution Control Post Office Box 10385 Jackson, Mississippi 39209
SUBJECT:
Grand Gulf Nuclear Station Unit 1 Calgon H-102 Biocide in PSW Discharge Supplemental Report.
FILE: 0260/15330 APO-87/ 1030
Dear Mr. Chisolm:
This is the follow-up report regarding the November 1987 fish kill in Sediment Basin B. The initial report of noncompliance (APO-87/0996) was dated November 24,.1987. A summary of this incident is provided in Attachment I.
BACKGROUND On November 19, 1987, a planned electrical bus outage occurred for Maintenance personnel to perfortn plant modifications. During the outag9, the valve which supplies Plant Service Water (PSW) makeup to the Fire Water Storage Tank (FWST) apprcpriately opened. This resulted in PSW continuously flowing into the FWST, which overflowed to the storm drains leading to Sediment Basin B. Since the biocide injection system had not been secured, the overflow contained Calgon H-102 (Material Safety Data Sheet, Attachment II).
On November 20, 1987 during a routine site surveillance, Environmental Surveillance Program personnel sited stressed fish at approximately 0800.
Because the fish in the basin were stressed, it seemed the impact was only minimal and the fish would recover. A survey st 0730, November 21, 1987 i
revealed the previously stressed fish were dead. The effects of the discharge were confined to Sediment Basin B, as no dead fish were found in l Stream B or Hamilton Lake. Attachment III describes the sequence of eveats prior to and after this discovery.
INCIDENT ASSESSMENT The initial assessment of the problem on November 20, 1987 was l inconclusive. Surveys of the basin continued throughout the day. Water samples were collected and analyzed for pH, dissolved oxygen (0,0.),
temperature and methylene bis (thiocyanate) MBT (the active ingredient in
! the biocide). Sample results revealed pH, 0.0., and temperature were l adequate to sustain aquatic life.
1 i
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APO-87/1030 Page 2 of 3 Methylene bis (thiocyanate) concentrations were present in samples collected after the discharge occurred; however, the concentrations were bt':t the 96-hour LC 50 for a 10% active product. After evaluating the data, the MBT lethal concentrations could not be determined because the largest concentration had discharged and biodegraded.
CONTROL AND COUNTERMEASURE _S Because the fish were obviously stressed, the following actions were taken on November 20, 1987:
- Biocide addition was secured
- Suspect discharges were discountinued
- Attempts to determine any other sources were initiated.
INCIDENT RESPONSE
~The Mississippi Department of Natural Resources and the NRC were notified.
Telephone notifications are detailed in Attachment IV.
CLEAN-UP The fish clean-up began on November 23, 1987. Representative samples were collected and categorized by species, weight, and length. Attachment V summarizes the fish collection results.
CONCLUSION The cause of the fish kill was lack of procedures controlling non-routine discharge of PSW. The administrative procedure governing nonradiological discharges is being revised to require suspension of biocide treatment during periods when PSW flow is diverted from its normal pathway.
Plans are underway to restock Sediment Basin B with Bluegill in mid January. In early spring, Largemouth Bass and Channel Catfish will be restocked.
Sincerely, ddb GRW/GEA/RRJ:beb Attachments cc: (See Next Page)
APO-87/1030 Page 3 of 3 cc: Mr. G. E. Anderson Mr. W. C. Angle Mr. T. H. Cloninger Mr. M. L. Crawford Mr. J. E. Cross Mr. Larry Hamil (MONR)
Mr. O. D. Kingsley ,
Dr. L. R. McKay Mr. J. V. Parrish Mr. B. R. Rogers (MDNR)
File (Central)
File (ENV)
File (NS)
File (R&ES) [ 15]
Dr. J. Nelson Grace Regional Administrator .
U. S. Nuclear Regulatory Commission
. Region II .
101 Marietta Street, N. W. Suite 2900 Atlanta, Georgia 30323 (All of the above w/ attachments)
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ATTACHMENT I ENVIRONMENTAL INCIDENT REPORT o Name, address and phone number of owner or operator:
- System Energy Resources, Inc.
Post Office Box 23070 Jackson, Misrissippi 39225-3070 (601) 960-9600 o Name, addre;v and phone number of facility:
- Grand Gulf Nuclear Station (GGNS)
Grand Gulf Road Port Gibson, Mississippi 39150 (601) 437-5260 o Date, time and type of incident:
- November 19, 1987 (1200 - 1800) &
November 20, 1987 (OC00 - 0600)
- Discharge of biocide-treated plant service water
'o Name and quantity of material (s) involved:
- Calgon H-102, approximately 32 gallons 101 methylene bis (thiocyanate),
10% 2-(ttiocyanomethylthio)benzothiazole o Assessment of actual or potential hazards to human health or the environment (if applicable):
- There were no actual or potential hazards to human health as a result of this incident. All actu': sad potential environmental hazards were confined to dediment Basin B.
Approximately 25,000 fish were killed in Sediment Basin B as a result of this incident. Other wildlife such as turtles, beavers, and waterfowl were apparently not affected by the incident. A complete recovery of the Sediment Basin B aquatic system is expected. ,
o Estimated quantity and diaposition of material recovered from the incident:
- None (Biocide is biodegradable product) l
ATTAC}&ENT II CALGON MATERIAL SAFETY DATA SEET l
l L
""'"' senverv 22. i.e7 MATERIAL SAFETY DATA SHEET o.1, _. .
I
, C.A. .L. .G. . .O. .N PAODUCT N AME TBT 102/H 102 Microbiocide
, , , , , ,, , , , ,, ,, , , , , c e :
MANvF ACTURER 5 N AME EVERGENCY Calgon Corpotetion
= _ . _ _ . . . _ _. - TELEPHONE No (412) 777 9000. - --
P.O. Som 1346, Pituburgh, Pennsylvania 15230 ,
CHEMICAL P AME 80RMULA ANDSYNONYMS Multicomponent Llquid , _ , _ ,
~
1 SECTION II HAZARDOUS INGREDIENTS PRiNCiP AL MAz ARoov5 coveoStNi isi s ow A L Loi,o ot av AL Log _ r_L u v %
Not i
Methylene Bis (thiocyanate) (C AS No. 6317 18 6) 10 -
Listed __ _
No1 2-(Thiocyanomethyltheo) Benrothiazole (C AS No. 21564-174) 10 - -
Listed
( .
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l - - - -
l
- s. -
l SECTION lia PHYSICAL DAT A
> 212 $PECIFIC G A AVITY (H2 0 11 1.08 solLING POINT 107)
PE ACENT VOL ATILE V APO A PR E S$UR E t--w, i Unknown By votuvE isi Unknown VAPOR DEN $ TTY ( AIRell Unknown o64100 ppm in wetst) 67
$0LUBILtTY IN w ATER Dispersible ._
APPE Am ANCE AND ODOR Deth brown liquid SECTION 4V FIRE. AND E XPLOSION HAZARD DATA L' -
F L A5m point iMe noe useal 8 L AVM AB6E LIMITS 1440F (TCC) Unknown _
i ExTINGutSMiNG MEol A Water, f og carbon dioalde, foam, dry chemical . . - - - -
SPECI AL FIRE FIGHTING PR OC E DUR E 5 Respirstory protection is recommended.
UNusv As 8 tel AND EmPLO$ ION M AZ ARD5 Do not une or store near heat or open flame.
I We th t id e
- 01 e " 0
- 1 s e t e m
- S *C f i e.* f nf f f.D' t h. .t.'.I...' *.l.' 8e-h.ree'.f.e' I'8' 4 W(I*l hi. a3 an I'M
- . . * ,>' $I O.4"b e 5 e I l 's t
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_ _ _ _ _ _ . _ _ _ _ _ _ - . __-,, -___,-,-c,
b , SECTION V HE ALTH HAZARD DATA l EsFECTS 07 OVEREXPOSURE INGESTION: Hermful or fatalif swellowed (ret oral I,0$o: 170 280 mg/kgL i
SKIN: Hermtvl et fatalif absorbed through the skin. May produos skin sensitiastion. Causes skin demoge.
EYE: Counes irrosersible eye demote.
i EMERGENCY AND PIMT AIO PROCEUUR ES
- lNG E STION
I? ewellowed, seek medicel aid or cell Poison Control Center. Drink 1 or 2 eleues of water end induce ,omiting by touching back of throat with finger. Do not induce vomiting or pire anything by mouth to en unconscious person.
SKIN: ,
la case of ooniset, weeh promptfy and thoroughly with soep and water end finally with glycerin while remoeing !
oonteminated clothing
- E YU
- la sees of contact, flush eyes immediately with copious amounts of clean, cool weter for 15 to 30 minutes. Get medical I j ettention immediately. ,
i
- G K N VI RE ACTIVITY DAT A i
' STABLE I CON O4 TIONS STABILITY Unknow , i
- UNSTABLE ] TQ AVOIO
~
INCOMP A T ABILITY i.
! (Meierials to Avoed! Unknown '
-- .~. __ _ . . . . . . . .. ,
HAZ AROOUS OECOMPOslTION PRODUCTS Unknown l HA2 AROOUS POL YM E Al2 A TION CONDITIONS TO AVOto Unknowri ;
M AY OCCUR l l No IX NECT'lON VII SPILL OR LEAK PROCEDURES r
RLPORT ABLE QUANTitlE5 tROI NQtle 4 EPA 08 PROUUCT $84 L .,5 i j IN L85 OF EP A HAZ ARDOUS N/A SUS $7ANCE51N PRODUCT EQUAL TO OR ExCE EDING 1 ,
l NLA LBS i 2 __.
3 .. -
l j
STEPS TO BE T AKEN IN C ASE MATE RI AL 15 R E L E ASE D Dike eres to contein as much spilled meterial es possible. Remote any remaining meterial by OR SPILLE O absorbing on eerm6Culite or other eWitable absortung metersel and pleCe in a e4aled metal Container for dispotel, a
WASTE Ol5POSAL METHOD l l Dispose of in a landf all in accordence with locel state and fedetal regulations. '
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i SECTION VlH SPECIAL PROTECTION INFORMATION l RESPIRATORY PROTEctlON 15pecily Typel Not required ;
I . __ -
VE NTIL ATION LOC AL E RM AU57 PECI AL Recommended
- _ _ N./A .
(G,w ei t Recommended N/A
~
1 PROTECTIVE GLOVE 5 EYE PROTECTeON j 1mpersious rubber Chem 6cel spieehtoggles or f ece chield
' '~ '~ ~ ~
i OTwE R PROTECTIVE l E OviPut N T Rubber opton l
i i SECTION IX SPECIAL PRECAUTIONS i Pfals Aw fivNL 70 et t AQ N 'N Do not get in eyes, on skin or clothlfig, t%eer chemical Splesn Dogglet of IeCd shielo. rubtper gloves and j M ANOLINC, ANO $70RINr, proiecisese.W,,meni . hen henann, wesh iho, ughit e+te, heneiing xee,conteine,cio.ee -hen nni j
l in W6e Wash clothing and clean work shoes or boots before reuse s .. . _ . . . . . . _ . .
l OTME R PREC AufiONS All protective clothing, work shoes or boots one equipment must be lef t at the work site
, et the end of the day. Eating, drinking or smoking during use of t his product es prohibited.
l - ._- .. . _ _ -.
TBT-102 (M-102) Microbiocide Active Ingredients:
flethylene bis (thiocyanate) ( CAS Mo . 6317 18-6) . . . . . . . . . . . . . . . . . . . . 10%
t-(thi ocya nome thyl th i o ) be n r o th i a r ol e (C AS No. 21564-17-0) . . . . . . . . . 10%
de6% and Safety Studlee Acute Oral Loot Aem, met: 2eo methe: Mets. ww: 110 methe.
Asuto eennel La.: Aseps: M70 metke.
Skin lev 9tesen: Me6M : Carraske.
Eyelev$deGen: Ae6Ms:Corvoehe.
Dennel Sono $ttreden: Cuhee Mrs: Stroag esanft+re'.
Active Incredient: Methylene bis (thiocyanate)
-Hash end safety studtee-The NSenhg tese . ope peretamed welk 30% te*wdeof rode METHYLENE SIStTNIOCYAN ATT).
j Anwee Omf LO : Aes at me/kg for temenes: 34 meIte for metes.
Asves Dermet Lt.: se6Ms: ommer een 2 ethe.
S hin intee W o n: M edly W W W ng. ,
l l v u , - is esee,e.,i, to . . - . .
Ah and WildlHe Studloo -
The essenme um es ,e,veemed wm e s% sewe prodwet:
SH4eur Lt.m Mek: Nw MsA: 1.4 ppm.
The tenewho tese we,e savi,mes .m Se% eewe prodvet-
-~
EMewt LC.M Meh:
Ash 6ew Deut 2 form. -
Meyer SunesA: 2.7 ppm.
WOTT: Whose the above toes were eenfeemed on e estion the eeev*e em WRuted product as recohed tpr the testing labortfory.
Page 2
_TBT-102 (M-102) Microblocide .
Active In0P*dient! 2-(thiocyanomethylthio)benrothiarole
-whim .a ....w it ..e N M teet were performed with a 90% active product:
00lNo o'el LO.? ##4, mete and female: 1.N g/kg.
Eve lwhetten: Ae66the Coereelve to unweehed eyes, irritet.as to weshed evos.
Aevte ledwietsen,1 have espece, Aars, sirfiew of 10 L/ min ureth nominet eeneentration of 0.17 mgIL eeeeeol. 0/to Wathe.
het Skin irritetlen: Me66,h: 5.0, modersto enin demoge.
Twenty one Oey Suboevte Deemel Study:
Ae66'N A 1:5 dNton eepied et 0.3 and 3 0 meIt a produced ao leeloae.
N Mn0 teste were oorformed eth the iiO%, technical preda TCMTS:
Aetne Dermal LDv Asb6/ts- Greeter then 2 g/kg.
Teestology study:
AsPr No ladiest4m et verstopeen e W et 1*wel i e 25.1,76 5. ead 125.5 mgIkg. The high does eMeeted weiget ge'n end afi newe e produced gestric e* facts.
Nineff Dev Subehrente Peeding Study:
48ts? A no otreervebie e+tect lowe# e' 333 som.
Seep 4 Dept: A no seeervelde-e* feet level of too pom.
MartD98aleMy Aseeve in Chinese Nemetoe Overy Cett Systems:
Nogetw ter both temord mutatoas sad saster ehremshd escheapes.
SM h Mlerenvelove Assey in Mice: Nogetw.
i
-Meh SM Wildlife Studies
, The tot,4, seem were performed weh e 80% em product:
E Me w L 4 le Pleh:
Asei6ew Treve; e.029 pem.
S&sp# Svate*: 0.0d7 pom.
i AelemDietHYL4: Sh Over greater then 10.000 ppm.
I The fete.% seem we,e ps.v ,med w*th the 80% techniset prede TCMTS:
Aelem Dietuv LN MeseW Obees gaaefer then 10.000 pem.
Aewte Oret log Miseed Duets: 1310 mgIte.
- SMove LC. In Irwertebretos: D 3A.4 oves 0m%.
l WOft: Where the obem teem we o pe=*ermed ea e d*vitee, the roovhs. ore W h M e'"'s WRWted product se receW try the teeting laborotory, i
6
ATTACHMENT III CHRONOLOGICAL EVENTS 11-19-87 1200 - Calgon H-102 injection into PSW began 1300 - PSW makeup to FWST began; resulting in PSW continuously overflowing to the store drains 1300 - Calgon H-102 injection into PSW secured 11-20-87 0000 - Calgon H-102 injection into PSW began-0600 - Calgon H-102 injection into PSW secured I 0800 - Environmental personnel discovered stressed fish in Sediment Basin B 0930 - Notified Acting Manager, Radiological & Environmental Services, about the stressed fish .
1015 - First dead fish were discovered ,
1030 - Water sample collections for analysis began 1100 - Confirmed tributary sources to store drain 2200 - PSW makeup to FWST secured 11-21-87 0730 - Fish kill confirmed in Sediment Basin B during survey 0800 - Notified Acting Manager, Radiological & Environmental Se rvices 0945 - Notification to Emergency Services Coordinator, Department of Wildlife 1035 - Notification to Nuclear Regulatory Commission 11-23-87 0730 - Cleanup commenced 1500 - Cleanup completed
6 ATTAC} DENT IV TE$EPHONENOTIFICATION O
4
b RECORD OT TELEPHONE NOTIFICATION Emergency Services Coordinator
- 1. Telephone report to Eas4enal-Respenne-Genwr madn by:
Name: _Glenn E. Anderson
Title:
Environmental Coordinator signature-Date:
Im[ dd s;,7 87 Facility: GGus Time: 0945 (AM)(PH)
Iccation: Pnrt Gibson. MS 2.
Name(s) and estimated amount (s) of hazardous substance (s) released or quantity of oil discharged:
Caloon H-102; iniected in 6-hour cycles for 6 hours6.944444e-5 days <br />0.00167 hours <br />9.920635e-6 weeks <br />2.283e-6 months <br />. Total volume iniected - acoroximately 32 callons 101 Methylene Bis (thiocyanate).
1 ne 7-fThincyanomethvithio) Benzothiazole
- 3. Geographical location end. If applicable, body of navigable waters involved:
Sediment Basin B (southwest of plant site)
- 4. Listing used to classify released material as hazardous:
(Refer to Reference 2.1.3.h) Used Material Safety Data Sheet
- 5. Reportable quantity (ies) for substance (s) involved:
_ N/A h
- 6. Date, time, and duration of release:
11-20-87 /0900/a pproxima tely 12 hours1.388889e-4 days <br />0.00333 hours <br />1.984127e-5 weeks <br />4.566e-6 months <br />
- 7. T.elease was to (air, water, ground):
Water
- 8. Remedial actions taken to control, and/or mitigate the effects of, the release or discharge:
H-102 fed to F5W discontirwed Emergency Services Coordinator
- 9. Person at Luvu.F,nc.syvune territr to whoe report was made:
Name: Bubba Rhyme
Title:
Diteatcher-(Deot. of Wildlife)
- 10. Manager, Radiological 8 Environmental Services notified 11-20-87/0930 for stressed fish Date/ Time: 11-21-87/0B00 for dead fish m
ENVIRONMENTAL INCIDEN7 RESPONSE REV ATTACHMENT I to Procedure No. 5.8 3 IIB I 2 5 Se M M ",47. NSAP5.8 10 PAGE 1 of 2
% 11. Other regulatory agencies notified (if any):
A. Agency: Nuclear Reaulatory Com. B. Agency: -
Name: Notified by Control Room Name:
Title:
0 11-21-87/1035
Title:
C. Agency: D. Agency,;
Name: Name:
Title:
Title:
Signature: rNes[ IM >_e upervisoi, Environmental Se'rvices, or designated Environmental Surveillance Prograr personnel
^ .
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m DATE
' ENTIRONMENTAL lhCIDEN7 ELSPONSE REV FEB 121,, I 3
ATTACHMENT 1 to Procedure No. 5.6 PAGE 2 of 2 W O N E'l NSAP5.8 - 11
ATTACHMENT V FISH KILL PA_TA Page I of.2 l Common Name l Size / l No. l l Estimated l Estimated Total l l Scientific Neue l Range l Collected l Weight l' Total No. of l Weight of Fish l
l (inches) (ge) Fish (Ibs)
RLUEGILL 0.5" to l l Leposis macrochirus l 1.5" l 481 1316.5 gmi 18,480' l 5.0 lbs. g l3.5"tol l !
l l l BLUEGILL Lepomis macrochirus l 6.0" l 68 l1457.0 l 2_,805 l 27.0 lbs. g
' BLUEGILL l6.0"tol l l l l l Leposis macrochirus l 6.5* l 3 Q10.5 l 135 l 6.4 lbs. g I
LARGEMOUTH BASS l Micropterus salmoides!
l1.5"tol l l l l 2.5" l 51 l1404.0 l 3,425 l 1.6 lbs. g
' LARGEMOUTH BASS l 9" to l l l l l l Micropterus salmoidesl 17" l 78 135454.5 l 78 l 206.8 lbs. ;
I l 9" to l l l l l l __Ictalurus CHANNELpunctatus CATFISH l 13" l '3 12045.5 l 78 l 4.5 lbs. g
ATTACHMENT V FISH KILL DATA Page 2 of 2 Most dead fish accumulated in one to two feet wide strips in four areas of Sediment Basin B (see diagram). Almost all of these fish were 0.5 to 1.5 inches in length. A few large fish were found outside the areas noted in the diagram. The large fish were collected and added to the total. Because of the difficulty in collecting the smaller fish in the turbid water, one square yard from each area was Yandomly selected as a sample site. The technique was as follows:
- 1) Determined location of dead fish
- 2) Measured the total area (yds)
- 3) Selected one square yard sample sites randomly
- 4) Identified, weighed and measured fish collected from the sample sites.
Basin B Schematic of Fish Accumulation Area and Sample Sites Sam le #3 Sa le il
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Outfall 007 Sample #4 70 yds Oman W
's
-' E yds' -
/ ~'_""{"--W yas Sample #2 /
Sar.ple Site \
LiivilundiolairidlMunnitijar sWsoul N
Fish Accumulated Area
\ nEmou wEs.mc.
Cv.to D vocm.h vcorw = < April 28, 1988 nre owma U. S. Nuclear Regulatory Conmission Washington, D. C. 20555 Attention: Document Control Desk Gentlemen:
SUBJECT:
Grand Gulf Nuclear Station Unit 1 Docket No. 50-416 License No. NPF-29 Annual Environmental Operating Report for 1987 2 AECM-88/0090 In accordance with Grand Gulf Nuclear Station Facility License NPF-29, Appendix B (Environmental Protection Plan), attached is the Annual Environmental Operating Report for the period January 1 through December 31, 1987.
If you need additional information, please contact this office.
Your uly,
/ ~
ODK:jjb .
Attachment cc: Mr. T. H. Cloninger (w/a)
Mr. R. B. McGehee (w/a)
Mr. N. S. Reynolds (w/a)
Mr.
Mr. R.H.
C.L. Thomas Butcher (w/a (w/o))
Dr. J. Nelson Grace, Regional Administrator (w/a)
U. S. Nuclear Regulatory Commission Region II 101 Marietta St., N. W., Suite 2900 Atlanta, Georgia 30323 Mr. L. L. Kintner, Project Manager (w/a)
Office of Nuclear Reactor Regulation U. S. Nuclear Regulatory Commission Mail Stop 14B20 Washington, D.C. 20555
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