ML20206E644
| ML20206E644 | |
| Person / Time | |
|---|---|
| Site: | Comanche Peak  |
| Issue date: | 12/31/1998 |
| From: | Terry C, Walker R TEXAS UTILITIES ELECTRIC CO. (TU ELECTRIC) |
| To: | NRC OFFICE OF INFORMATION RESOURCES MANAGEMENT (IRM) |
| References | |
| TXX-99100, NUDOCS 9905050190 | |
| Download: ML20206E644 (11) | |
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l P9 Log # TXX-99100
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5 File # 225 TUELECTRIC April 29,1999
- c. tmee wery Senior Mce President
& PrincipalNuclear Obicer U. S. Nuclear Regulatory Commission Attn: Document Control Desk Washington, D.C. 20555 l
SUBJECT:
COMANCHE PEAK STEAM ELECTRIC STATION (CPSES) ,
DOCKET NOS. 50-445 AND 50-446 '
ENVIRONMENTAL PROTECTION PLAN ANNUAL ENVIRONMENTAL OPERATING REPORT FOR 1998 Gentlemen:
Pursuant to Section 5.4.1 of the Environmental Protection Plan (Appendix B to CPSES i t Unit 1 and Unit 2 Facility Operating License Nos. NPF-87 and l l NPF-89, respectively), TU Electric hereby submits the CPSES 1998 Annual Environmental Operating Report in the aitachment to this letter. j If you have any questions, please contact Mr. Bruce Turner at (254) 897-8901.
Sincerely,
- 8. f.
C. L. Terry By: 8 ~
Ro'gefcD. Walker Regulatory Affairs Manager CLW/grj Attachment l c- Mr. E. W. Merschoff, Region IV Mr. J. l. Tapia, Region IV (clo) 1 Mr. D. H. Jaffe, NRR Resident inspectors, CPSES 98b31 990505019 PDR R
ADOCK05000445{i PDR L l kl COMANCHE PEAK S t LAM El.ECTRIC STATION l
. .O. Box 1002 Glen Rose. Texas 76043-1002 t:.
\
TU ELECTRIC COMANCHE PEAK STEAM ELECTRIC STATION UNITS 1 & 2 1998 ANNUAL ENVIRONMENTAL OPERATING REPORT (NONRADIOLOGICAL)
FACILITY OPERATING LICENSE NOS. NPF-87 & 89 I
l
- j Attachment to TXX-99100 Page 2 of 10
- 1. INTRODUCTION This report describes implementation of the Environmental Protection Plan (EPP) for the calender year 1998 as required by Appendix B to Facility Operating License Nos. NPF- 1 87 & 89 for Comanche Peak Steam Electric Station (CPSES) for Units 1 & 2.
During 1998, the CPSES Nonradiological Environmental Monitoring Program was effective in implementing and monitoring all of CPSES's environmental regulatory commitments. Program effectiveness was substantiated by environmental audits conducted in 1998 by in-house compliance visits by Environmental Services (TU .
Services) and compliance evaluations conducted by the CPSES Nuclear Overview l Department. Also, the Texas Natural Resource Conservation Commission (TNRCC) and the Texas Department of Health performed regulatory inspections of CPSES's programs ;
pertaining to potable water and asbestos handling, respectively. No violations or deficiencies were found during these inspections.
. II. SCOPE Section 5.4.1 of the EPP requires that CPSES submit to the NRC an Annual .i Environmental Operating report that shall address the following environmental !
protection activities:
'A. Summaries and analyses of the results of the environmental protection activities required by Section _4.2 of the EPP, including a comparison with related preoperational studies, operational controls (as appropriate), and previous nonradiological environmenta! monitoring reports, and an assessment of the observed impacts of plant operation on the environment. If harmful effects or evidence of trends toward irreversible damage to the environment are observed, a detailed analysis of the data and a proposed course of mitigating action is required. Section 4.2 of the EPP pertains to results from:
- 1. Groundwater levels and station water use monitoring. !
- 2. Water treatment facility outages impact assessment and reporting.
B. The report shall also include:
- 1. A list of EPP noncompliances and the associated corrective actions.
- 2. A list of all changes in station design and operation, tests, and experiments made in accordance with Subsection 3.1 of the EPP which involved a potentially significant unreviewed environmental question.
- 3. A list of nonroutine reports submitted in accordance with Subsection 5.4.2 of the EPP.
- 4. A summary list of National Pollutant Discharge Elimination System (NPDES) permit related reports relative to matters identified in Subsection 2.1 of the EPP which were submitted to the EPA Region VI during the report period. Subsection 2.1 of the EPP pertains to aquatic matters that are addressed by the effluent limitations, and the monitoring
m
- Att chment to TXX-99100
111. RESULTS OF ACTIVITIES -
A. As required by Subsection 4.2 of the EPP, the following are summaries and analyses of the environmental protection activities during 1998. Based on the results of these activities, there were no observed adverse environmental impacts resulting from plant operation during 1998.
i
- 1. Groundwater Pumpage As indicated in Table 1, groundwater pumpage during 1998 averaged j 23.2 gals./ min. (gpm) or 12,236,700 total gallons withdrawn for the year. This withdrawal rate represents a 1% increase from the 1997 1 average rate of 22.9 gpm. Groundwater withdrawal was highest in '
December at 28.0 gpm and lowest in January with an average withdrawal rate of 18.8 gpm. i Groundwater withdrawn during 1998 was used primarily for potable and sanitary purposes with only a very small amount used as make-up to the plant fire protection system. No groundwater was used to supplement the station's Surface Water Treatment System.
The average annual pumpage rate of 23.2 gpm for 1998 represents 18%
of the predicted operational pumpage (127 gpm) identified in Section 3.3 of the Station's Environmental Report - Operational License Stage. This rate also represents approximately 15% of the actual average withdrawal rate (158 gpm) reported in the Station's Final Environmental Statement - Operating License Stage (Section 5.3.1.2) of the period 1975 to May 1979.
The combined annual rate for all recorded preoperational groundwater
! pumpage averaged 68.8 gpm, while the average operational pumpage for the period 1990 through 1998 was 31.5 gpm. Therefore, the average l operational rates are 54% less than the groundwater pumpage during the ,
preoperational period. Figure 1 illustrates the annual fluctuation of groundwater withdrawal over the entire preoperational and operational period.
- 2. Groundwater Levels As indicated in Table 2, the groundwater level in the on-site observation well.OB-3 (intersection of Highway 56 and the Plant Access Road) fluctuated during 1998 from a high level in April of 535.7 ft. Mean Sea Level (MSL) to a low level in October of 526.5 ft. MSL. Overall, the water level in OB-3 during the reporting period (January through December) decreased 5.0 ft. (1.5m). l The 1998 annual average groundwater levels in well OB-3 and OB-4 were 531.0 ft. MSL and 568.7 ft. MSL, respectively. These average ;
levels demonstrated a decrease of 3.8 ft. (1.2m) for 08-3 and a b
Attachment to TXX-99100 Page 4 of 10 decrease of 5.8 ft. (1.8m) for OB-4 from the respective average 1997 levels (Figure 2).
As indicated in Table 2, the most significant level of decline occurred between the months of July and October. During this period rainfall totaled 6.6 inches' while the average rainfall for this period, over a thirty-four (34) year record, totaled 11.5 inches, in addition, the annual total rainfall for 1998 was approximately 9.5 inches less than the annual rainfall for 1997.
Consequently, it appears that the decline in groundwater levels between the two reporting periods of 1997 and 1998 was primarily due to the drier conditions in 1998. This is further supported when comparing average annual groundwater withdrawal between the two reporting periods. For example, withdrawal rates only increased by 0.3 gpm. l
- 3. Surface Water Treatment System Operation The station's Water Treatment System processed 197,024,698 total I gallons (373 gpm) of surface water during 1998 for plant process use.
There were no outages during 1998 that required reporting in accordance with Section 4.2.2 of the EPP.
The following is a summary list of monthly surface water usage:
i I
MONTH- SURFACE WATER
' PROCESSED (GALS.) -
JANUARY 13,510,700 FEBRUARY 13,457,000 MARCH 14,059,999 APRIL 15,028,200 MAY 13,581,800 JUNE 42,467,100 l
JULY 14,618,700 l
AUGUST 13,948,900 SEPTEMBER 14,243,500 OCTOBER 14,288,499 NOVEMBER 13,444,600 f
DECEMBER 14,375,700 l TOTAL 197,024,698 i
' Precipitation data as recorded in official records maintained for the U.S. Weather Service by j a local observer located in Glen Rose, TX (Somervell County).
l 1
4 Attachment to TXX-99100
- Page 5 of 10 I
B. EPP Noncompliance and Corrective Actions - Subsection 5.4.1(1)
There were no noncompliances with the requirements of the EPP during the reporting period.
l
- C. Changes'in Station Design or Operation, Tests, and Experiments Made in Accordance With Subsection 3.1 Which involved A Potentially Significant Unreviewed Environmental Question.
,- There were no changes in station design, operation, tests or experiments l conducted during the reporting period that are reportable under this subsection.
l D. Nonroutine Reports Submitted in Accordance With Subsection 5.4.2-t There were no nonroutine reports submitted under this subsection. l I
( E. NPDES Permit-Related Reports Relative To Matters identified in l
Subsections 2.1 and 5.4.1 l ,
l 1. Routine monthly Discharge Monitoring Reports (DMR) for all l wastewater outfalls were submitted to the EPA and Texas Natural Resource Conservation Commission (TNRCC) for each month during 1998. The following is a summary list of ,
correspondence pertaining to DMRs and NPDES permit related l documents.
I
.MONTHJ. LOG NUMBERiOATE x ,
MONITORCD :.
JANUARYg TXX-98034 02/25/98 PEBRUARY- TXX-98072 - 03/25/98 MARCH TXX-98011 - 04/25/98 APRIL TXX-98133 - 05/25/98 ,
l TXX-98104 08-98 *8io-Monitoring Submission" l l MAYc TXX-98151 - 06/25/98 L JUNE' TXX-98175 - 07/25/98 l
TXX-98157 24-98 " Bio-Monitoring Submission" l- TXX 98165 30-98 " Bio-Monitoring Submission" JULYJ ,
O TXX 98193 - 08/25/98 AUGUST 1 TXX-98204 - 09/25/98 SEPTEMBER -t TXX-98231 - 10/25/98 OCTOGER3 1 TXX-98247 11/25/98 NOVEMBER 4 TXX-98267 - 12/23/98 -
TXX-98246 19-98 DECEMBER ' TXX-99012 01/25/99 L
Attachment to TXX-99100 Page 6 of 10
- 2. There were two (2) NPDES wastewater discharge permit noncompliances in 1998. Both noncompliances pertained to the domestic waste treatment plant (NPDES Outfall 003).
The total noncompliances in 1998 represent a decrease of five (5) noncompliances from 1997.
- 3. There were no on-site spills during 1998 that required reporting in accordance with the TNRCC~t 24-hour notification requirements, b
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g-Attachment to TXX-99100 l
. Page 8 of 10 TABLE 2
.1998
SUMMARY
OF GROUNDWATER LEVELS IN OBSERVATION WELLS
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.WELL !OB-4L
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WELL.OB-3 : ,
' MONTH: (G-3)' .
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DEPTH (1): MSL' (2)L DEPTH -(1) MSL (2)
' January; 260.5 533.3 275.6 572.3 February- 260.5 533.3 275.6 572.3 March 259.0 534.8 272.3 575.6 April: 258.2 535.7 270.6 577.3 MayJ 258.7 535.1 271.1 576.8 June' 260.6 533.2 275.1 572.8 July! 263.6 530.3 277.6 570.2 Augusti >
266.5 527.3 283.3 564.6 September : 266.4 527.4 286.5 561.4 October.1 267.4 526.5 289.1 558.8 l November-. 266.1. 527.8 288.1 559.8 Decemberi 265.5 528.3 285.1 562.8 ANNUAL GROUNDWATER LEVEL CHANGE FOR 1998:
Wall OB-3: 260.5 ft. - 265.5 ft = (-)S.O ft. = (-)1.5m (Decrease)
- Well OB-4: 275.6 ft. - 285.1 ft = (-)9.5 ft. = (-)2.9m (Decrease)
NOTES:
(1) Dep'th to water table (ft.)
(2) Water table elevation (ft.) Mean Sea Level (MSL)
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