ML20138F889
| ML20138F889 | |
| Person / Time | |
|---|---|
| Site: | Comanche Peak  |
| Issue date: | 12/31/1996 |
| From: | Woodlan D TEXAS UTILITIES ELECTRIC CO. (TU ELECTRIC) |
| To: | |
| References | |
| TXX-97107, NUDOCS 9705060083 | |
| Download: ML20138F889 (16) | |
Text
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File # 225 r Z 1UELECTRIC' April 30, 1997 C. Lance Terry Gnap We Prr.stdens U. S. Nuclear Regulatory Commission i
Attn: Document Control Desk Washington, D.C. 20555
SUBJECT:
COMANCHE PEAK STEAM ELECTRIC STATION (CPSES)
DOCKET NOS. 50-445 AND 50 446 ENVIRONMENTAL PROTECTION PLAN ANNUAL ENVIRONMENTAL OPERATING REPORT FOR 1996 Gentlemen:
Pursuant to Section 5.4.1 of the Environmental Protection Plan (Appendix B to CPSES Unit 1 and Unit 2 Facility Operating License Nos. NPF 87 and NPF 89, respectively), TU Electric hereby submits the CPSES 1996 Annual Environmental Operating Report in the attachment to this letter.
If you have any questions, please contact Mr. Bruce Turner at (817) 897 8901.
Sincerely, C. L. Terry By:
D. R. Woodlan Docket Licensing Manager CLW/grp Attachment c- Mr. E. W. Merschoff, Region IV Mr. J. I. Tapia, Region IV Mr. T. J. Polich. NRR I Resident Inspectors, CPSES ~s C CfUl ! #
c3c129 9705060083 961231 PDR ADOCK 05000445 R PDR a Illl !I!IllI,II,11.1 P. O. Box 1002 Glen Rose Texas 76043
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COMANCHE PEAK STEAM EL'ECTRIC STATION.
UNITS 1 & 2 1996 ANNUAL ENVIRONMENTAL OPERATING REPORT (NONRADIOLOGICAL)
FACILITY OPERATING LICENSE NOS. NPF-87 & 89 i
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I Attach' ment to TXX-97107
! Page 2 of 15 j l. INTRODUCTION I.
This report describes implementation of the Environmental Protection Plan (EPP) for the calender year 1996 as required by Appendix B to Facility Operating License Nos. NPF-87 & 89 for Units 1 & 2.
- During 1996, the CPSES Nonradiological Environmental Monitoring
} Program was effective in implementing and monitoring all of CPSES's l environmental regulatory commitments.. Program effectiveness was j
- substantiated by environmental audits conducted in 1996 by in-house i j compliance visits by. Environmental Services (TU Services) and I
. compliance evaluations conducted by the CPSES Nuclear Overview j Department.
In addition to routine environmental monitoring to meet existing CPSES
- environmental permit requirements, some noteworthy environmental I projects were accomplished. For example
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- 1. During 1996 CPSES completed design, construction and start-up
- of a new 90,000 gal per day Domestic Waste Treatment Facility.
- The new facility utilizes the " extended aeration / activated sludge j return" process and it replaced the old system in its' entirety.
! Effluent disinfection is accomplished by ultraviolet treatment to l replace the use of sodium hypochlorite. In addition, solids l dewatering equipment has been incorporated into the facility for l on-site sludge processing. Effluent flow is measured by an i ultrasonic flow meter.
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- 2. During 1996, CPSES completed the commitment to topsoil and j revegetate areas disturbed during construction by reclaiming i approximately 25 remaining acres of the site. The commitment to j revegetate these areas was identified in the CPSES Environmental i Report - Operating License Stage (ER-OL, Amend.1, response to
- staff question 75) and Final Environmental Statement (Section
! 4.3.1). Reclamation of areas disturbed during construction began in 1994; a total of approximately 95 acres of the site have now I been reclaimod. In accordance with the above commitment an i aerial photograph was taken on July 19,1996 to document the '
j completion of reclamation activities. This photograph, along with an aerial photograph taken February 1993 are included as Figures l 1 and 2, respectively, for comparison.
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i Attach' ment to TXX-97107 i Page 3 of 15 ll. SCOPE Section 5.4.1 of the EPP requires that CPSES submit to the NRC an Annual 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 environmental 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
- wastewater discharge permit.
1 Ill. RESULTS OF ACTIVITIES I
. A. As required by Subsection 4.2 of the EPP, the following are summaries and analyses of the environmental protection activities
- during 1996. Based on the results of these activities, there were j no observed adverse environmental impacts resulting from plant operation during 1996.
- 1. Groundwater Pumpage
! As indicated in Table 1, groundwater pumpage during 1996 averaged 28.8 gals./ min. (gpm) or 15,363,300 total gallons j withdrawn for the year. This withdrawal rate represents a
! 32% decrease from the 1995 average rate of 42.3 gpm.
Groundwater withdrawal was highest in September at 37.2 gpm and lowest in December with an average withdrawal rate of 17.4 gpm.
Groundwater withdrawn during 1996 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 28.8 gpm for 1996 represents 23% of the predicted operational pumpage (127 gpm) identified in Section 3.3 of the Station's Environmental
- Report - Operational Ucense Stage. This rate also represents
- approximately 18% of the actual average withdrawal rate (158 gpm) reported in the Station's Final Environmental j Statement - Operating Ucense 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 1996 was 33.9 gpm. Therefore, the average operational rates are 51 %
d less than the groundwater pumpage during the preoperational
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} period. Figure 3 illustrates the annual fluctuation of i groundwater withdrawal over the entire preoperational and
! operational period.
- 2. Groundwater Levels j As indicated in Table 2, the groundwater level in the on-site
- observation well 08-3 (intersection of Highway 56 and the j Plant Access Road) fluctuated during 1996 from a high level j in January of 535.6 ft. Mean Sea Level (MSL) to a low level j in August of 529.8 ft. MSL. Overall, the water level in 08-3 j during the reporting period (January through December) j decreased 2.4 ft. (0.7m).
l The groundwater level in observation well OB-4 (Squaw Creek Park) fluctuated during 1996 from a high level in i March of 578.2 ft. MSL to a low level in September of 575.0
- ft. MSL. Overall, the water level in 08-4 during the reporting period decreased 1.6 ft. (0.5m).
i The 1996 annual average groundwater levels in well OB-3 and OB-4 were 533.0 ft. MSL and 576.5 ft. MSL, i
respectively. These average levels demonstrated a decrease i of 3.3 ft. (1.0m) for OB-3 and 1.8 ft. (0.5m) for OB-4 from
[ the respective average 1995 levels (Figure 4). However, as
- indicated in Section Ill.A.1 ground water pumpage actually decreased from an annual average of 42.3 gpm in 1995 to 28.8 gpm in 1996 (32% decrease). Consequently, it appears i the decline in annual average water levels between the two l' (2) reporting periods was attributed to other factors. For instance, precipitationi during January through June totaled 9.1 inches in 1996 compared to a 20 year average of 18.9 inches for the same six month period.
1 3. Surface Water Treatment System Operation The station's Water Treatment System processed q 180,734,800 total gallons (343 gpm) of surface water during
' precipitation data as recorded in official records maintained for the U.S. Weather Service by a local observer located in Glen Rose, Texas (Somervell County)
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! Attach' ment to TXX-97107
! Page 6 of 15 i
l 1996 for plant process use. There were no outages during 1996 that required reporting in accordance with Section ;
! 4.2.2 of the EPP. !
4 4 The following is a summary list of monthly surface water i usage:
MONTH SURFACE WATER
- PROCESSED (GALS.)
t j JANUARY 17,305,500 FEBRUARY 13,767,500 i MARCH 14,436,400 APRIL 14,894,100 MAY 15,359,700 JUNE 12,078,500 JULY 16,159,300 AUGUST 16,292,100 SEPTEMBER 15,408,000 OCTOBER 16,869,300 NOVEMBER 13,368,400 DECEMBER 14,796,000 TOTAL 180,734,800
- 8. EPP Noncompliance and Corrective Actions - Subsection 5.4.1 (1 )
There were no noncompliances with the requirements of the EPP during the reporting period.
C. Changes in Station Design or Operation, Tests, and Experiments Made in Accordance With Subsection 3.1 Which involved A Potentially Significant Unreviewed Environmental Questions
i Attach' ment to TXX-97107 !
Page 7 of 15 There were no changes in station design or operation, nor I 4
tests or experiments conducted during the reporting period I
- that are reportable under this subsection.
D. Nonroutine Reports Submitted in Accordance With Subsection 5.4.2 l There were no nonroutine reports submitted under this !
- subsection. '
E. NPDES Permit-Related Reports Relative To Matters identified In Subsections 2.1 and 5.4.1 l
- 1. Routine monthly Discharge Monitoring Reports (DMR) l for all wastewater outfalls were submitted to the EPA j and Texas Natural Resource Conservation Commission 1 (TNRCC) for each month during 1996. The following is a summary list of correspondence (DMRs and related ;
documents) submitted to the EPA. l
Attach' ment to TXX-97107 Page 8 of 15 MONTH LOG NUMBER /DATE MONITORED JANUARY TXX-96049 / 2-25-96 FEBRUARY TXX-96086 / 3-25-96 MARCH TXX-96119 / 4-25-96 APRIL TXX-96369 / 5-25-96 TXX-96105 / 4-04-96 (Amend January,1996 DMR)
TXX-96108 / 4-03-96 (Biomonitoring report re-submission) i MAY TXX-96388 / 6-25-96 j l JUNE TXX-96417 / 7-25-96 JULY TXX-96442 / 8-23-96 AUGUST TXX-96462 / 9-25-96 TXX-96429 / 8-01-96 (Sanitary sewage effluents)
SEPTEMBER TXX-96480 /10-25-96 l
3 OCTOBER TXX-96506 /11-25-96 TXX-96491/10-22-96 (Notification of reverse osmosis blocide use)
NOVEMBER TXX-96523 /12-23-96 DECEMBER TXX-97009 /1-25-97
]
- 2. There were nine (9) NPDES wastewater discharge permit noncompliances in 1996. All nine (9) noncompliances
- pertained to the old sewage treatment plant (NPDES Outfall 003). Eight (8) of these noncompliances resulted from exceeding the chlorine limits for this outfall, while one (1)
. noncompliance was the result of exceeding total suspended solids (average) limit of 20 mg/l. The chlorine limits imposed
- by the NPDES permit for this outfall is 1.0 mg/l, minimum and 4.0 mg/l, maximum and chlorine must be monitored five (5) times per week.
As described in Section 1.1., the old domestic waste treatment plant has been replaced with a new system and the new ultraviolet treatment system provides disinfection
Attach' ment to TXX-97107 Page 9 of 15
- 3. There was one (1) on-site spill during 1996 that was reported in accordance with the TNRCC's 24-hr. notification requirements. This spill occurred on November 13,1996 and
- involved the release of approximately 100 gallons of a mixture of hydroxyethylidene diphosphonic acid (HEDP),
orthophosphate and copolymer at the Service Water i Chemical Feed building. The spill resulted from a relief valve
- failure on the associated chemical feed equipment. The l contaminated soil that resulted from this spill was removed
- for disposal.
l 4. In October and November 1996, Unit 1 steam generators
! were chemically cleaned. Prior to this cleaning project,
! calculations revealed that it would be necessary to vent the j steam generators during the various cleaning steps and that l there would be a potential to exceed the established one (1) pound reportable quantity criteria for hydrazine. Based on
- discussions with both the TNRCC and the EPA, it was '
decided that CPSES would report (verbally) to the National i
- Response Center during these venting activities and report l the calculated amount of hydrazine vented. These activities
, were confirmed with the EPA in correspondence TXX-97005 dated January 7,1997. '
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Attachment to TXX-97107 Page 10 of 15 .
TABLE 1 ,
SUMMARY
OF GROUNDWATER PUMPAGE For 1996 .
MONTH PLANT WELL 1 PLANT WELL 2 NOSF WELL 1 NOSF WELL 2 TOTALS NO. OF DAYS Total Avg. Yotd Avg. Total Avg. Total Avg. Total Avg. BETWEEN fEADMGS Gals. Gals. Gac. Gals. Gals. Gals. Gals. Gals. Gals. Gals.
Per Per Per Per Per kWn. Min. Min. Min. Min.
January 1,306,100 24.5 0 0.0 115,800 2.2 135,800 2.5 1,557,700 29.2 37 February 1,068,200 27.5 0 0.0 58,700 1.5 57,700 1.5 1,184,600 30.5 27 March 1,062,800 26.4 0 0.0 48,000 1.2 49,900 1.2 1,160,700 28.7 28 AprH ' -
20.9* -
0.28 -
1.28 - 1.3* -
23.6* -
May* 1,894,100' 20.9* 18,900" 0.28 108,300" 1.2* 115,600" 1.38 2,136,900" 23.6* 64 June 565,200 14.0 754,500 18.7 55,600 1.4 52,100 1.3 1,427,400 35.4 28 July 748,000 14.8 675,300 13.4 65,600 1.3 73,400 1.5 1,562,300 31.0 35 !
l August 877,800 21.0 489,500 11.7 47,200 1.1 47,800 1.1 1,462,300 35.0 29 September 45,600 1.2 1,309,700 33.7 45,900 1.2 44,400 1.1 1,445,600 37.2 27 October 776,300 15.4 722,200 14.3 57,000 1.1 66,700 1.3 1,622,200 32.2 35 November 76,900 1.9 798,500 19.8 42,100 1.0 34,400 0.9 951,900 23.6 28 l
December 258,600 7.3 409,400 8.4 50,900 1.0 32,800 0.7 851,700 17.4 34 TOTAL 8,779,600 16.4 5,178,000 9.8 695,100 1.3 710,600 1.3 15,363,300 28.8 371
- 1) Measurements for April were not taken (Corrective Action per ONE Form 96-747).
- 2) Values for May total gallons represent total for April and May. ,
- 3) Average values for April and May derived from the two (2) month total values.
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Attach' ment to TXX-97107 Page 11 of 15 TABLE 2 1996
SUMMARY
OF GROUNDWATER LEVELS IN OBSERVATION WELLS MONTH WELL OB-3 WELL 08-4 (G-3) (G-4)
DEPTH (1) MSL DEPTH (1) MSL (2)
(2)
January 258.2 535.6 273.0 577.8 February 258.9 534.9 272.9 577.9 March 258.3 535.5 272.6 578.2 April 258.4 535.4 273.0 577.8 May 259.8 534.0 273.6 577.2 June 262.6 531.2 274.2 576.6 July (3) 263.0 530.8 275.1 575.7 1
August (3) 264.0 529.8 275.6 575.2 i
September (3) 262.4 531.4 275.8 575.0 <
1 October (3) 262.4 531.4 275.7 575.1 '
November (3) 261.5 532.3 275.3 575.5 December ,
260.6 533.2 274.6 576.3 ANNUAL GROUNDWATER LEVEL CHANGE FOR 1996:
Well 0B-3: 258.2 ft. - 260.6 ft = (-)2.4 ft. = (-)0.7m (Decrease)
Well 08-4: 273.0 ft. - 274.6 ft = (-)1.6 ft. = (-)0.5m (Decrease)
NOIES:
(1) Depth to water table (ft.)
(2) Water table elevation (ft.) Mean Sea Level (MSL) i (3) Levels represent average levels based on weekly readings taken when previous ;
month pumpage exceeds 30 gpm.
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