ML20091R017
| ML20091R017 | |
| Person / Time | |
|---|---|
| Site: | Comanche Peak  |
| Issue date: | 08/30/1995 |
| From: | Terry C, Woodlan D TEXAS UTILITIES ELECTRIC CO. (TU ELECTRIC) |
| To: | NRC OFFICE OF INFORMATION RESOURCES MANAGEMENT (IRM) |
| References | |
| TXX-95236, NUDOCS 9509060183 | |
| Download: ML20091R017 (74) | |
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Log # TXX-95236 l---
===l File # 223 10010
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TUELECTRIC August 30, 1995 C. Lance Terry Grmp Ykr PresMent.Narlent U. S. Nuclear Regulatory Commission Document Control Desk Washington, DC 20555
SUBJECT:
COMANCHE PEAK STEAM ELECTRIC STATION (CPSES)
DOCKET NOS. 50 445 AND 50-446 TRANSMITTAL OF COPIES OF THE RENEWED EPA NATIONAL POLLUTANT DISCHARGE ELIMINATION SYSTEM (NPDES) AND TNRCC WASTERWATER DISCHARGE PERMITS
Dear Sirs:
Pursuant to Section 3.2 of the Environmental Protection Plan (Nonradiological), Appendix B of CPSES Facility Operating License Nos.
NPF 87 and NPF 89. a copy of the renewed EPA NPDES Permit No. TX0065854 and TNRCC Wastewater Discharge Permit No. 01854 have been enclosed for your records.
Sincerely, C. L. Terry By:
D. R. Woodlan Docket Licensing Manager RSB/
Enclosure i
cc:
Mr. L. J. Callan, Region IV Mr. D. F. Kirsch, Region IV Mr. T. J. Polich, NRR Resident Inspectors i
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9509060183 950830
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PDR ADDCK 05000445
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Energy Plan 1601 Bryan Street Dallu. Texas 75201-3411
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UNITED STATES ENVIRONMENTAL PROTECTION AGENCY J Ok REC 10N 6 g
1445 ROSS AVEATE DALLAS. TEXAS 75202 2733 8'"#/
September 30, 1994 CERTIFIED MAIL:
RETURN RECEIPT REQUESTED (P 239 546 240)
REPLY TO:
6W-PS Mr. William J.
Cahill, Jr.
Group Vice President, Nuclear Texas Utilities Electric Company 400 N.
Olive Street, LB 81 RECEIVED Dallas, TX 75201 OCT 0 31994 Re:
NPDES Permit No. TX0065854 Public Notice of Final Permit Decision
Dear Mr. Cahill:
Enclosed is the public notice of the Agency's final permit decision, a copy of our response to comments, and the final permit.
For administrative purposes, the permit is to become effective on November 1, 1994, following regulations at 40 CFR Part 124.15 (b) (1).
This public notice describes any substantial changes from the draft permit.
Should you have any questions regarding the final permit, please feel free to contact Fred Humke of the Permits Branch at (214) 655-7503, FAX (214) 655-6490.
Should you have any i
questions regarding compliance with the conditions of this permit, please contact the Enforcement Branch at (214) 655-6450.
Sincerely yours, i
9 Myron O.
Knuds
.E.
Director Water Manageme t ivision (6W)
Enclosures cc (w/ enclosures):
Texas Natural Resource Conservation Commission
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U.S. Environmental Protection Agency - Region 6 Public Notice of Final Permit Decision 1
SEPTEMBER 30, 1994 4
{
This is to give notice that the U.S.
Environmental Protection Agency, Region 6, has made a final permit decision and will issue 1
the following Proposed Permit (s) under the National Pollutant Discharge Elimination System.
The permit (s) will become effective 30 days from the date of this Public Notice.
Any substantial changes from the Draft Permit are cited.
i This issuance is based on a
final staff review of the j
administrative record and comments received.
A Response to Comments is available by writing to:
1 j
Ms. Ellen Caldwell j
Permits Branch (6W-PS) i U.S.
Environmental Protection Agency, Region 6 1
1445 Ross Avenue i
Dallas, Texas 75202-2733 j
(214) 655-7513 Any person may request an Evidentiary Hearing on this final permit decision.
However, the request must be submitted within 30 days from the date of this Notice.
The request should be in accordance with the requirements of 40 CFR 124.74 (Federal Register Vol. 45, No. 98, Monday, May 19, 1980).
The original public notice contains the stay provisions of a granted evidentiary hearing request.
1 Within 30 days after service of an initial decision, or a denial in whole or in part of a request for an evidentiary hearing, any person may file an appeal in accordance with the requirements of 40 l
CFR 124.91.
Submissions may be mailed to:
U.S.
Environmental Protection Agency, Environmental Appeals Board (MC-1103B), 401 M 1
Street, SW, Washington, D.C. 20460. Hand-delivered submissions may be made at:
U.S.
Environmental Protection Agency, Environmental Appeals Board, Westory Building, 607 14th Street, NW, Suite 500, l
Washington, D.C.
20005.
l Further information including the administrative record may be viewed at the above address between 8 a.m. and 4:30 p.m.,
Monday through Friday, i
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AUTHORIZATION TO DISCHARGE TO WATERS OF THE UNITED STATES, NPDES PERMIT No. TX0065854 1
i The applicant's mailing address is:
Texas Utilities Electric Company 400 N.
Olive Street, L.B.
81 Dallas, Texas 75201 1
The discharge f rom this existing source is made into Squaw Creek Reservoir, thence to Squaw Creek, thence to the Paluxy River in Segment No. 1229 of the Brazos River Basin, a water of the United States classified for contact recreation, high quality aquatic habitat, and public water supply.
The discharger is located on Squaw Creek Reservoir along Hwy 56 approximately four and one half miles (4.5) northwest of the City of Glen Rose, Somerville County, Texas.
Under the Standard Industrial Classification (SIC) Code (s) j 4911, the applicant currently operates a steam electric generating facility constsetng of two (2) nuclear-fueled steam electric generating units.
There are substantial changes from the draft reissued permit publicly noticed j
en July 16, 1994.
i 1.
Section II.J.3.d. is changed to specify a mintmum of three (3) flow weighted composite samples be collected as opposed to two (2) in the draft permit.
2.
Paragraph II.J.3.d.i. is changed to specify that a 24-hour composite sample consist of a minimum of 12 effluent portions, not four (4) which appears in the draft permit.
a 3.
Outfall 003 sample types are corrected for Flow to Estimate and for BOD as Record.
j 4.
Outfall 104 description is changed to metal cleaning waste / low volume wastewater.
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RESPONSE TO COMMENTS FINAL PERMIT DECISION This is our response to comments received on the subject draft permit in accordance with regulations promulgated at 40 CFR Part 124.17.
Permit No.
TX0065854 Applicants Texas Utilities Electric company 400 N. Olive Street, L.B.
81 Dallas, Texas 75201 Issuing Offices U.S. Environmental Protection Agency Region 6 1445 Ross Avenue 4
Dallas, Texas 75202-2733 Prepared By:
Fred Humke Industrial Permits Section (6W-PI)
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Permits Branch Water Management Division (214) 655-7180 l
Permit Action:
Final permit decision and response to comments received on the draft reissued permit publicly noticed
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on July 16, 1994.
l Date Prepared:
August 23, 1994.
Unless otherwise stated, citations to 40 CFR refer to promulgated regulations listed at Title 40, code of Federal Regulations, revised as of 7/1/94.
STATE CERTIFICATION Texas Natural Resource Conservation Commission, dated August 17, 1994.
The following effluent lLaitations and/or conditions are included in the final permit in conformance with regulations listed at 40 CrR Part 122.44(d)(3):
1.
Item 3.d.,
Samnles and Composites. Page 7 of Part II, changed to specify a minimum of three (3) flow-weighted 24-hour composite samples be collected as opposed to two (2) as specified in the draft permit. Two flow-weighted samples would cause the permittee to exceed the 72 hour8.333333e-4 days <br />0.02 hours <br />1.190476e-4 weeks <br />2.7396e-5 months <br /> holding time limit for samples.
2.
Recommendation included that Item 3.d.i., Page 7 of Part II, be i
modified to specify that a 24-hour composite sample consist of a minimum of 12 1.
effluent portions, not four (4) which appears in the draft permit, to correspond with the requirements of the TNRCC permit.
COMMENTS RECEIVED ON DRAFT PERMIT Trom Texas Utilities Electric Company, dated August 15, 1994.
RESPONSE TO COMMENTS ISSUE NUMBER 1 Cover Pace The discharge route mentions only one of the facility's two possible options. While discharge will normally go to squaw Creek, the option exists to discharge to Lake Granbury in Segment No. 1205 of the Brazos River Basin.
In order tn more accurately describe the facility *e discharge route the Agency may wish to include segment 1205.
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f PERMIT No. TX0065854 PESPONSE TO COMMENTS PnGE 2 OF 2 I
i PESPONSE 4
1
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This matter was discussed with the TNRCC.
The alternate discharge location can not be allowed for this permit as applied for and drafted under the application dated 9/27/93.
The water quality calculations are based on Squaw Creek Reservoir and Waterbody Segment Code No. 1229 of a
the Brazos River.
Therefore, TNRCC could not certify this change
]
without a revised WQ analysis, i
ISSUE NUMBER 2 i
For Outfall 001, once-through and auxiliary cooling, just below the i
effluent characterization table a reference is made to Part II, Paragraph O.
Since there is no Paragraph 0 in Part II, the Agency may j
wish to either delete this line or reference an existing paragraph.
1 PESPONSE 4
The draft permit being issued shows Footnote al as Part II, Paragraph D.,
which is FLOW-WEIGHTED AVERAGE TEMPERATURE.
This is the correct reference for temperature.
Therefore, no change is needed.
q ISSUE NO. 3 i
outfall 003, sanitary sewaae effluents The Permit lists the sample type for both Flow and BOD as Record.
The Company believes these sample types were inadvertently changed from Estimate and Grab, respectively, 4
as listed in the current Permit. Consequently, the company requests l
that the Agency change the Sample Type for Flow to Estimate and the Sample Type for BOD to Grab.
i i
RESPONSE
i These changes have been made.
ISSUE NO. 4 i
Outfall 104, metal cleanina wastes The Agency dropped the term " low-volume wastewater" from the outfall's description.
On rare occasion, j
the facility may wish to discharge some low-volume wastewater from this i
outfall; therefore, the company requests that this outfall retain its j
-current description of metal cleaning waste / low volume wastewater 1 t
BESONSE 4
This change has been made.
1 1
ISSUE NO. 5 i
1 The company requests additions to Part II.J. Whole Effluent Toxicity Testing (7-Day Chronic NOEC Freshwater) and Part II.K. Whole Effluent Toxicity Testing (TX 24 Hour Acute LC50 Freshwater) relative to test initiation and dates. -
RESPONSE
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These are standard paragraphs which are not revised on a permit-by-j permit basis.
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PERMIT NO. TX0065954 COVER PAGE AUTHORIZATION TO DISCHARGE UNDER THE NATIONAL POLLUTANT DISCHARGE ELIMINATION SYSTEM In ecmpliance with the provisions of the clean Water Act, as amended, (33 U.S.C.
1251 et. seg; the "Act"),
Texas Utilities Electric Company 400 N. Olive Street L.B.
81 Dallas, Texas 75201 is authorized to discharge from a facility located on Squaw Creek Reservoir along Hwy 56 approximately four and one half miles (4.5) northwest of the City of Glen Rose, Somervell County, Texas to receiving waters named Squaw Creek Reservoir, thence to Squaw Creek, Thence to Paluxy River, Waterbody Segment Code No. 1229 of the Brazos River, from 0
0 Final Outfall 001: Latitude - 32 17'46"N; Longitude - s'7 46 ' 56W" 0
0 Final Outfall 002: Latitude - 32 17'29"N; Longitude - 97 47'10W" 0
0 Final Outfall 003: Latitude - 32 17'46"N; Longitude - 97 46*;5W" 0
0 Final outfall 004: Latitude - 32 17'54"N; Longitude - 97 47*06W" 0
0 Latitude - 32 18'08"N; Longitude - 97 47'21W" 0
0 Internal Outfall 104: Latitude - 32 18'05"N; Longitude - 97 47'23W" in accordance with effluent limitations, monitoring requirements and other conditions set forth in Parts I (6 pages), II (17 pages), and III (7 pages]
hereof.
This permit supersedes and replaces NPDES Permit No. TX0065854 issued March 31, 1989.
This permit shall become effective on November 1, 1994.
This permit and the authorization to discharge shall expire at midnight, October 30, 1999.
Signed and issued on September 30, 1994 4
Iy Myron O.
- Knudson, P.
Director Water Management Di is n (6W) i i
PERMIT NO. TX0065854 PAGE 1 OF PART I PART I REQUIREMENTS FOR NPDES PERMITS A.
EFFLUENT LIMITATIONS AND MONITORING PEOUIREMENTS OUTFALL 001 (FINAL)
(Previousiv Outfall 201)
During the period beginning the effective date of the permit and lasting through the expiration date of the permit, i
the permittee is authorized to discharge from Final outf all 001: the continuous discharge of once-through and auxiliary cooling water and previously monitored effluents (*5) to Squaw Creek Reservoir.
Such discharges shall be limited and monitored by the permittee as specified below:
EFFLUENT CHARACTERISTIC DISCHARGE LIMITATIONS MASS OTHER UNITS (LBS/ DAY UNLESS STATED)
(mg/L UNLESS STATED)
DAILY AVG DAILY MAX DAILY AVG DAILY MAX Flow (MGD)
N/A N/A
( Report )
( Re port )
Temperature,
- F (al)
N/A N/A ll3*F ll6*F Free Available Chlorine 440 1101 0.2 0.5 Total Residual Chlorine Report 880 Report 0.2 EFFLUENT CHARACTERISTIC MONITORING REOUIREMENTS MEASUREMENT SAMPLE FREOUENCY TYPE Flow (MCD)
Continuous (*2)
Record Temperature,
- F (*l)
Continuous Record Free Available Chlorine (*3) 1/ week (*4)
Grab Total Residual Chlorine (*3) 1/ week (*4)
Grab See Part II, Paragraph O.
The pH shall not be less than N/A standard units nor greater than N/A standard units.
There shall be no discharge of floating solids or visible foam in other than trace amounts.
Samples taken in compliance with the monitoring requirements specified above shall be taken at the following location (s): At Outfall 001, where condenser cooling water and previously monitored effluents (*5) are discharged from the discharge canal to Squaw Creek Reservoir.
E00THDTES
- 1 See Part II, Paragraph D.
- 2 Flow rates shall be obtained from pump curve data.
3
- 3 See Part II, Paragraph E.
- 4 Samples shall be representative of periods of chlorination.
- 5 Effluent previously monitored at Outfall 004 may be discharged through Outfall 001.
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PERMIT NO. TXOO65854 PAGE 2 OF PART I PART I REQUIREMENTS FOR NPDES PERMITS A.
EFFLUENT LIMITATIONS AND MONITORING PEOUIREMENTS OUTFALL 002 IFINAL)
IPrevicusiv Outfall 501)
During the period beginning the effective date of the permit and lasting through the expiration date of the permit, the permittee is authorized to discharge from Final outf all 002: the intermittent discharge of Safe Shutdown Impoundment (SSI) containing cooling water, low-volume wastes (*4) (service water) and stormwater runoff to Squaw Creek Reservoir.
Such discharges shall be limited and monitored by the permittee as specified I
below:
EFFLUENT CHARACTERISTIC DISCHARGE LIMITATIONS MASS OTHER UNITS (LBS/ DAY UNLESS STATED)
(mg/L UNLESS STATED)
DAILY AVG DAILY MAX DAILY AVG DAILY MAX Flow (MGD)
N/A N/A Report Report Total Suspended Solids N/A N/A 30 100 Oil and Grease N/A N/A 15 20 pH Minimum / Maximum Values (Min)
(Max)
(standard Units) 6.0 (*2) 9.0 (*2)
EFFLUENT CHARACTERISTIC MONITORING REQUIREMENTS l
MEASUREMENT SAMPLE FREQUENCY TYPE Flow (MGD) 1/ day (*1)
Estimate (*3)
Total Suspended Solids 1/ week (al)
Grab Oil and Grease 1/ week (*1)
Grab pH Minimum / Maximum Values (standard Units) 1/ week (*1)
Grab j
There shall be no discharge of floating solids or visible foam in other than trace amounts.
Samples taken in compliance with the monitoring requirements specified above shall be taken at the following location (s): At Outfall 002, where (SSI) effluents are discharged to Squaw Creek Reservoir.
i FOOTNOTES
- 1 When discharge occurs.
- 2 The pH shall not be less than 6.0 standard units nor greater than 9.0 standard units. The permittee shall report on the Discharge Monitoring Reports both the minimum and maximum instantaneous (rather than the daily average and daily maximum) pH values measured during the sampling month.
- 3 See Part II, Paragraph G.
- 4 See Part II, Paragraph C.
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PERMIT NO. TX0065854 PAGE 3 OF PART I PART I REQUIREMENTS FOR NPDES PERMITS A.
EFFLUENT LIMITATIONS AND MONITORING REQUIREMENTS OUTFALL 003 (FINAL)
(Previously Outfall 301)
During the period beginning the effective date of the permit and lasting through the expiration date of the permit, the permittee is authorized to discharge from Final Outfall 003: the continuous discharge of sanitary sewage effluents to Squaw Creek Reservoir.
Such discharges shall be limited and monitored by the permittee as specified below:
J EFFLUENT CHARACTERISTIC DISCHARGE LIMITATIONS 3
MASS OTHER UNITS (LBS/ DAY UNLESS STATED)
(mg/L UNLESS STATED)
DAILY AVG DAILY HAX DAILY AVG DAILY MAX Flow (MGD)
N/A N/A (Report)
(Report)
Biochemical Oxygen Demand (5-day)
N/A N/A 20 45 Total Suspended Solids N/A N/A 20 45 l
pH Minimum / Maximum Values (Min)
(Max)
(standard Units) 6.0 (*l) 9.0 (*1)
EFFLUENT CHARACTERISTIC MONITORING REQUIREMENTS 4
MEASUREMENT SAMPLE FREOUENCY TYPE Flow (MGD) 1/ day Estimate Biochemical Oxygen Demand (5-day) 2/ month Grab Total Suspended Solids 2/ month Grab pH Minimum / Maximum values (standard Units) 2/ month Grab d
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There shall be no discharge of floating solids or visible foam in other than 5
trace amounts.
The effluent shall contain chlorine residual of at least 1.0 mg/l and a maximum chlorine residual of 4.0 mg/l after a detention time of at least 20 minutes (based on peak flow), and shall be monitored five times per week, by grab sample.
Samples taken in compliance with the monitoring requirements specified above shall be taken at the following location (s): At Outfall 003, where sanitary sewage effluents are discharged from the sewage treatment plant prior to discharge to Squaw Creek Reservoir.
FOOTNOTES
- 1 The pH shall not be less than 6.0 standard units nor greater than 9.0 standard units.
The permittee shall report on the Discharge Monitoring Reports both the minimum and maximum instantaneous (rather than the daily average and daily maximum) pH values measured during t.".e sampling month.
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PERMIT NO. TX0065854 PAGE 4 OF PART I PART I REQUIREMENTS FOR NPDES PERMITS A.
[IILUENT LIMITATIONS AND MONITORING REOUIREMENTS OUTFALL 004 (FINAL) fPreviousiv Outfall 101) i f
During the period beginning the effective date of the permit and lasting through the expiration date of the permit, the permittee is authorized to discharge from Final Outf all 004: the a
intermittent discharge of low-volume wastewater (*1) and previously monitored effluents to the condenser cooling water and/or Squaw Creek Reservoir.
Such discharges shall be limited and monitored by the permittee as specified below:
EFFLUENT CHARACTERISTIC DISCHARGE LIMITATIONS MASS OTHER UNITS (LBS/ DAY UNLESS STATED)
(mg/L UNLESS STATED)
DAILY AVC DAILY MAX DAILY AVG DAILY MAX Flow (MGD)
N/A N/A Report Report Total Suspended Solids N/A N/A 30 100 Oil and Grease N/A N/A 15 20 i
pH Minimum / Maximum Values (Min)
(Max) 3 (standard Units) 6.0 (*3) 9.0 (*3)
EFFLUENT CMARACTERISTIC MONITORING REOUIREMENTS MEASUREMENT SAMPLE
]
FREOUENCY TYPE Flow (MGD) 1/ day (*2)
Estimate (*4) l Total Suspended Solids 1/ week (*2)
Grab (*S) i Oil and Grease 1/ week (*2)
Grab (*S) pH Minimum / Maximum Values l
(standard Units) 1/ week (*2)
Grab (*S)
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There shall be no discharge of floating solids or visible foam in other than i
trace amounts.
)
Samples taken in compliance with the monitoring requirements specified above i
shall be taken at the following location (s): At Outfall 004, where low-volume wastewater and previously monitored effluents are discharged prior to mixing with the condenser cooling water and/or Squaw Creek Reservoir.
i FOOTNOTES i
al See Part II, Paragraph C.
- 2 When discharge occurs.
- 3 The pH shall not be less than 6.0 standard units nor greater than 9.0 standard units.
The permittee shall report on the Discharge i
Monitoring Reports both the minimum and maximum instantaneous (rather j
than the daily average and daily maximum) pH values measured during the sampling month.
- 4 See Part II, Paragraph G.
- 5 Since more than one source may be asscciated with this particular waste category, grab samples from each source mcy be either physically combined into a single flow weighted sample for analysis and reporting or individually analyzed and the results mathematically combined into a single flow weighted result for reporting.
PERMIT NO. TX0065854 PAGE 5 OF PART I PART I REQUIREMENTS FOR NPDES PERMITS A.
EFFLUENT LIMITATIONS AND MONITORING REOUIREHENTS C'7TFALL 104 (INTERNAL) fPreviousiv Outfall 601)
During the period beginning the effective date of the permit and lasting i
through the expiration date of the permit, i
the permittee is authorized to discharge from Internal Outfall 104: the intermittent discharge of metal cleaning (*l) wastes / low volume wastewater to Outfall 004.
Such discharges shall be limited and monitored by the permittee as specified below:
EFFLUENT CHARACTERISTIC DISCRARGE LIMITATIONS MASS OTHER UNITS (LBS/ DAY UNLESS STATED)
(mg/L UNLESS STATED)
DAILY AVG DAILY MAX DAILY AVG DAILY HAX Flow (MGD)
N/A N/A (Report)
(Report)
Iron, Total N/A N/A 1.0 1.0 Copper, Total N/A N/A 0.5 1.0 EFFLUENT CHARACTERISTIC MONITORING REOUIREHENTS MEASUREMENT SAMPLE FREOUENCY TYPE Flow (MGD) 1/ day (*2)
Estimate (*3)
Iron, Total 1/ week (*2)
Grab Copper, Total 1/ week (*2)
Grab The pH shall not be less than N/A standard unite nor greater than N/A standard units.
Oil and Grease, total suspended solids and pH are monitored and reported at Outfall 004.
There shall be no discharge of floating solids or visible foam in other than trace amounts.
Samples taken in compliance with the monitoring requirements specified above shall be taken at the following location (s): At Outfall 104, where metal cleaning wastes are discharged from the retention ponds or temporary treatment facilities prior to mixing with low-volume waste stream prior to discharge through outfall 004.
FOOTNOTES al See Part II, Paragraph B.
- 2 When discharge occurs.
- 3 See Part II, Paragraph G.
PERMIT NO. TXOO65854 PAGE 6 OF PART I
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8.
SCHEDULE OF COMPLIANCE The permittee shall achieve compliance with the effluent limitations specified for discharges in accordance with the following schedule:
4 NONE Reports of compliance or noncompliance with, or any progress reports on, interim and final requirements contained in any compliance schedule of this permit shall be submitted no later than 14 days following each schedule date.
Any reports of noncompliance shall include the cause of noncompliance, any remedial actions taken, and the probability of meeting the next scheduled requirement.
C.
REPORTING OF MONI?ORING RESULTS (HAJOR DISCHARGERS)
Monitoring results shall be reported in accordance with the provisions of Part III.D.4 of the permit. Monitoring results obtained during the previous month shall be summarized and reported on a Discharge Monitoring Report form postmarked no later than the lith day of the month following the completed monthly reporting period.
December 25, 1994 The first report is due on i
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PERMIT NO. TX0065854 PAGE 1 OF PART II PART II OTHER CONDITIONS A.
TRANSFORMER FLUID DISCHARGE There shall be no discharge of transformer fluid containing polychlorinated biphenyl (PCB) compounds.
B.
METAL CLEANING WASTE The term " metal cleaning waste" means any wastewater resulting from cleaning (with or without chemical cleaning compounds) any metal process equipment including, but not limited to, boiler tube cleaning, boiler fireside cleaning, and air preheater cleaning.
C.
LOW-VOLUME WASTESOURCES The term " low-volume wastesources" means, taken collectively as if from one source, wastewater from all sources except those for which specific limitations are otherwise established.
Low volume waste sources include, but are not limited to wastewaters from wet scrubber air pollution control systems, ion exchange water treatment systems, water treatment evaporator blowdown, laboratory and sampling streams, boiler blowdown, floor drains, cooling tower basin cleaning wastes, and recirculating house service water systems. Sanitary and air conditioning wastes are not included.
D.
FLOW-WEIGHTED AVERAGE TEMPERATURE For the purposes of this permit, daily temperature discharge is defined as the flow-weighted average temperature (FWAT) and, on a daily basis, shall be monitored and recorded in accordance with Part I, of this permit.
FWAT shall be calculated at equal time intervals not greater than two hours. The method i
l of calculating FWAT is as follows:
FWAT = SUMMATION (INSTANTANEOUS FLOW X INSTANTANEOUS TEMPERATURE)
SUMMATION (INSTANTANEOUS FLOW)
" Daily average temperature" (also known as average monthly or maximum 30 day value) shall be the arithmetic average of all FWAT's calculated during the calendar month.
" Daily maximum temperature" (also known as the maximum daily value) shall be the highest FWAT calculated during the calendar month.
E.
FREE AVAILABLE CHLORINE ANALYSIS The term " free available chlorine" shall mean the value obtained using the emperometric titration method for free available chlorine described in the latest edition of " Standard Methods for the Examination of Water and Wastewater."
TOTAL RESIDUAL CHLORINE The term " total residual chlorine" (or total residual oxidants for intake water with bromides) means the value obtained using the amperometric method for total residual chlorine described in the latest edition of " Standard Methods for the Examination of Water and Wastewater."
DISCHARGE OF FREE AVAILABLE OR TOTAL RESIDUAL CHLORINE I
Neither free available chlorine nor total residual chlorine may be discharged from any unit for more than two hours in any one day and not more than one unit in any plant may discharge free available or total residual chlorine at i
any one time.
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PERMIT NO. TX0065854 PAGE 2 OF PART
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F.
STORET/CAS CROSS-REFERENCE For the proper identification of parameters being regulated in this permit, the following table lists the corresponding EPA Storet Number and the Chemical Abstract Service (CAS) Registry Number where applicable.
The EPA Storet number is used to identify parameters on the Discharge Monitoring Report described at Part III.D.4.
PARAMETERS STORET CAS CONVENTIONAL BOD 5 00310 TSS 00530 Oil & Grease (Gravimetric) 00556 pH Range (Grab - Field Test) 00400 NONCONVENTIONAL i
Flow (MGD) 50050 Chlorine (Total Residual) 50060 Free Availablg Chlorine 50064 Temperature ( F) 00011 METALS AND CYANIDE Copper (Total) 01042 7550-50-8 Iron (Total) 01045 WHOLE EFFLUENT TOXICITY (CHRONIC 7-DAY NOEC FRESHWATER)
NOEC, Pass / Tail, TLP6C Static Renewal, 7-Day Chronic, Lethality, Pimechales oromelas NOEC, Value, TOP 6C Static Renewal, 7-Day Chronic, Lethality, Pimechales oromelas NOEC, Value, TPP6C Static Renewal, 7-Day Chronic, Growth, 3
Pimechales oromelas Coe. of Variation, Value, TQP6C Static Renewal, 7-Day Chronic, Lethality, Pimenhales oromelas NOEC, Pass / Fail, TLP3B Static Renewal, 7-Day Chronic, Lethality, Ceriodachnia dubia NOEC, Value, TOP 3B Static Renewal, 7-Day Chronic, Lethality, Ceriedachnia dubia NOEC, Value, TPP3B Static Renewal, 7-Day Chronic, Reproduction, Ceriodachnia dubia Coe. of Variation, Value, TQP3B Static Renewal, 7-Day Chronic, Lethality, Ceriedachnia dubia WHOLE EFFLUENT TOXICITY (TEXAS 24-HOUR ACUTE LC50 FRESHWATER)
LC50, Pass / Fail, TIE 3D Static Nonrenewal, 24-Hour Acute, Lethality, Dachnia culex
PERMIT NO. TXOO65854 PAGE 3 OF PART II LC50, Pass / Fall, TIE 6C Static Nonrenewal, 24-Hour Acute, Lethality, Pimachales cromelas t
G.
FLOW MEASUREMENT " ESTIMATE" SAMPLE TYPE If the flow measurement sample type in Part I is specified as " estimate," flow measurements shall not be subject to the accuracy provisions established at Part III.C.6.
The daily flow value may be estimated using best engineering judgment.
H.
40 CFR PART 136 ANALYTICAL REOUIREMENTS Unless otherwise specified in this permit, monitoring shall be conducted according to analytical, apparatus and materials, sample collection, preservation, handling, etc., procedures listed at 40 CFR Part 136 in effect on the ef fective date of this permit.
Appendices A, B, and C to 40 CFR Part 136 are specifically referenced as part of this requirement.
Amendments to 40 CFR Part 136 promulgated after the effective date of this permit shall 3
supersede these requirements as applicable.
I.
MINIMUM OUANTIFICATION LEVEL (MOL)
If any individual analytical test result is less than the minimum quantifi-cation level listed below, a value of zero (0) may be used for that individual result for the Discharge Monitoring Report (DMR) calculations and reporting requirements.
i METALS AND CYANIDE i
MOL fua/Li I
Copper (Total) 10 1
The permittee may develop an effluent specific method detection limit (MDL) in accordance with Appendix 8 to 40 CFR Part 136.
For any pollutant for which the permittee determines an affluent specific MDL, the permittee shall send to EPA Region 6 a report containing QA/QC documentation, analytical results, and calculations necessary to demonstrate that the effluent specific MDL was cor-rectly calculated.
An affluent specific minimum quantification level (MQL) shall be determined in accordance with the following calculation:
MQL = 3.3 x MDL Upon written approval by EPA Region 6, the effluent specific MQL may be utilized by the permittee for all future Discharge Monitoring Report (DMR) i calculations and reporting requirements.
J.
WHOLE EFFLUENT TOXICITY TESTING (7-DAY CHRONIC NOEC FRESHWATER) f 1.
SCOPE, FREOUENCY, AND METHODOLOGY The provisions of this section are applicable to outfall(s) a.
001 for whole effluent toxicity.
4 b.
The permittee shall test the effluent for toxicity in accordance with the provisions in this section.
This testing will determine if an appropriately dilute effluent
~
sample adversely affects the survival of the test organism.
4 The permittee shall submit the results of these tests on the appropriate Discharge Monitoring Report (DMR) for the reporting period.
l i
i i
i i
PERMIT NO. TX0065854 PAGE 4 OF PART II c.
The permittee shall implement all toxicity tests utilizing the test organisms, procedures, and quality assurance l
requirements specified in this section of the permit and in accordance with the EPA manual, "Short-Term Methods for Estimating the Chronic Toxicity of Effluents and Receiving Waters to Freshwater Organisms", EPA /600/4-89/001, or the latest update thereof. The permittee shall repeat a test,
]
including the control and all effluent dilutions, if the procedures and quality assurance requirements defined in the test methods or in this permit are not satisfied. A repeat i
test shall be conducted within the required reporting period of any test determined to be invalid.
1 d.
The permittee shall utilize the Ceriodachnia dubia chronic static renewal survival and reproduction test (Method 1002.0 j
or the most recent publication). This test should be
]
terminated when 60% of the surviving females in the control j
produce three broods. The permittee shall conduct the Cariodachnia dubia toxicity test at a frequency of once per i
- year, j
e.
The permittee shall utilize the Pimechales oromelas (Fathead minnow) chronic static renewal 7-day larval survival and a
growth test (Method 1000.0 or the most recent publication).
A minimum of five (5) replicates with eight (8) organisms j
per replicate must be used in the control and in each effluent dilution of this test.
The permittee shall conduct the Fathead minnow toxicity test at a frequency of cnce per year.
l f.
The permittee shall use five affluent dilution concentra-i tions in addition to a control (On effluent) in each j
toxicity test.
These additional effluent concentrations shall be 100%, 75%, 56%, 424, and 324.
The low-flow effluent concentration (critical dilution) is defined as the i
100% affluent.
j g.
The NOEC (No Observed Effect Concentration) is defined as 1
the greatest effluent dilution which does not result in l
lethality that is statistically different from the control (On effluent) at the 95% confidence level.
1
)
h.
This permit may be reopened to require whole ef fluent toxicity limits, chemical specific effluent limits, i
additional testing, and/or other appropriate actions to j
address toxicity.
2.
PERSISTENT LETHALITY The requirements of this subsection apply only when a toxicity g
test demonstrates significant lethal effects at the 100% effluent i
concentration.
Significant lethal effects are herein defined as a statistically significant difference at the 954 confidence level between the survival of the appropriate test organism in a a
specified effluent dilution and the control (On effluent).
a.
The permittee shall conduct a total of two (2) additional tests for any species that demonstrates significant lethal effects at the 1004 effluent concentration. The two additional tests shall be conducted monthly during the next two consecutive months. The permittee shall not substitute either of the two additional tests in lieu of routine
PERMIT NO. TXOO65854 PAGE 5 OF PART II toxicity testing, unless the specified testing frequency for the species demonstrating significant lethal effects is monthly. The full report shall be prepared for each test required by this section in accordance with procedures outlined in Item 4 of this section.
b.
If one or both of the two additional tests demonstrates significant lethal effects at the 100% effluent concentration, the permittee shall initiate Toxicity Reduction Evaluation requirements as specified under Item 5 of this section.
c.
If one or both of the two additional tests demonstrates significant lethal effects at the 100% effluent concentration, the permittee shall henceforth increase the frequency of testing for this species at a frequency of once per quarter for the life of the permit.
d.
The provisions of Item 2.a are suspended upon submittal of the TRE Action Plan.
e.
If the testing frequency in Item 1 is monthly for a species, the permittee shall initiate the Toxicity Reduction Evaluation requirements as specified under Item 5 of this section when any two of three consecutive monthly toxicity tests exhibit significant lethal effects at the 100%
effluent concentration.
3.
REQUIRED T0XICITY TESTING CONDITIONS a.
TEST ACCEPTANCE The permittee shall repeat any toxicity test, including tha control and all effluent dilutions, which fails to meet any of the following criteria:
L.
The toxicity test control (Os effluent) must have survival equal to or greater than 80%.
ii.
The mean number of Ceriodachnia dubia neonates produced per surviving female in the control (0%
effluent) must be 15 or more, iii. The mean dry weight of surviving Fathead minnow larvae at the end of the 7 days in the control (On effluent) must be 0.25 mg per larva or greater, iv.
The percent coefficient of variation between replicates shall be 40% or less in the control (Os effluent) fort the young of surviving females in the Ceriodachnia dubia reproduction test; the growth and survival endpoints of the Fathead minnow test.
v.
The percent coefficient of variation between replicates shall be 40% or less in the {DLL)s effluent concentration, unless significant lethal or nonlethal effects are exhibited fort the young of surviving females in the Ceriodachnia dubia reproduction test; the growth and survival endpoints of the Fathead minnow test.
i i
1
l e
PERMIT NO. TXC065854 PAGE 6 0F PART !!
b.
STATISTICAL INTERPRETATION i.
For the Ceriodachnia dubia survival test, the statistical analyses used to determine if there is a significant difference between the control and the low flow (critical dilution) shall be Fisher's Exact Test as described in the "Short-Term Methods for Estimating the Chronic Toxicity of Effluents and Receiving Waters to Freshwater Organisms", EPA /600/4-89/001, or the most recent update thereof.
ii.
For the Ceriodachnia dubia reproduction test and the Fathead minnow larval survival and growth test, the statistical analyses used to determine if there is a significant difference between the control and the low flow effluent concentration (critical dilution) shall be in accordance with the methods for determining the No Observed Effect Concentration (NOEC) as described in the "Short-Term Methods for Estimating the Chronic Toxicity of Effluents and Receiving Waters to Freshwater Organisms", EPA /600/4-89/001, or the most recent update thereof.
c.
DILUTION WATER i.
Dilution water used in the toxicity tests will be receiving water collected as close to the point of discharge as possible but unaf fected by the discharge.
The permittee shall substitute synthetic dilution water of similar pH, hardness, and alkalinity to the closest downstream perennial water for; (A) toxicity tests conducted on effluent discharges to receiving water classified as intermittent streams; and (B) toxicity tests conducted on effluent discharges where no receiving water is available due to zero flow conditions, ii.
If the receiving water is unsatisfactory as a result of instream toxicity (fails to fulfill the test acceptance criteria of Item 3.a), the permittee may substitute synthetic dilution water for the receiving water in all subsequent tests provided the unacceptable receiving water test met the following stipulations:
(A) a synthetic dilution water control which fulfills the test acceptance requirements of Item 3.a was run concurrently with the receiving water controls (B) the test indicating receiving water toxicity has been carried out to completion (i.e.,
7 days);
(C) the permittee includes all test results indicating receiving water toxicity with the full report and information required by Item 4 below; and
PERMIT NO. TX0065854 PAGE 7 OF PART II (D) the synthetic dilution water shall have a pH, hardness, and alkalinity similar to that of the receiving water or closest downstream perennial water not adversely affected by the discharge, provided the magnitude of these parameters will not cause toxicity in the synthetic dilution water.
d.
SAMPLES AND COMPOSITES 1.
The' permittee shall collect a minbaum of three flow-weighted 24-hour composite samples from Outfall(s) 001.
A 24-hour composite sample consists 4
of a minimum of twelve (12) effluent portions collected at equal time intervals representative of a 24-hour operating day and combined proportional to flow or a sample continuously collected proportional to flow over a 24-hour operating day.
11.
The permittee shall collect a second and third 24-hour composite sample for use during the 24-hour renewal of i
each dilution concentration the for both tests.
The permittee must collect the 24-hour composite samples so that the maximum holding time for any effluent sample shall not exceed 72 hours8.333333e-4 days <br />0.02 hours <br />1.190476e-4 weeks <br />2.7396e-5 months <br />. The permittee must have initiated the toxicity test within 36 hours4.166667e-4 days <br />0.01 hours <br />5.952381e-5 weeks <br />1.3698e-5 months <br /> after the collection of the last portion of the first 24-hour composite sample.
Samples shall be chilled to 4 degrees Centigrade during collection, shipping, and/or storage.
J iii. The permittee must collect the 24-hour composite samples such that the affluent samples are representative of any periodic episode of I
chlorination, biocide usage, or other potentially l
toxic substance discharged on an intermittent basis.
1 iv.
If the flow from the outfall(s) being tested ceases i
during the collection of effluent samplos, the requirements for the minimum number of effluent samples, the minimum number of effluent portions and the sample holding time are waived during that sampling period.
However, the permittee must collect i
an affluent composite sample volume during the period 1
1 of discharge that is sufficient to complete the required toxicity tests with daily renewal of effluent.
When possible, the effluent samples used for the toxicity tests shall be collected on separate days. The effluent composite sample collection duration and the static renewal protocol associated with the abbreviated sample collection must be documented in the full report required in Item 4 of this section.
4.
REPORTING a.
The permittee shall prepare a full report of the results of all tests conducted pursuant to this Part in accordance with the Report Preparation Section of "Short-Term Methods for Estimating the chronic Toxicity of Effluents and Recetvang Waters to Freshwater Organisms", EPA /600/4-89/001, for every valid or invalid toxicity test initiated, whether carrted to completion or not.
The permittee shall retain each full report pursuant to the provisions of Part III.C.3 of this Permit. The permittee shall submit full reports only upon the specific request of the Agency.
m
i PERMIT No. TX0065854 PAGE 8 OF PART II b.
The permittee shall report the following results of each toxicity test on the subsequent monthly DMR for that reporting period in accordance with Part III.D.4 of this permit:
1.
PIMEPHALES PPOMELAS (FATHEAD MINNOW)
(A)
If the Fathead minnow No Observed Effect Concentration (NOEC) for survival is less than the 100% effluent dilution, enter one ("1");
otherwise, enter zero ("0").
Parameter No.
TLP6C.
(B)
Report the Fathead minnow NOEC value for survival, Parameter No. TOP 6C.
(C)
Report the Fathead minnow NOEC value for growth, Parameter No. TPP6C.
(D)
Report the t coef ficient of variation (larger of low flow and control dilutions), Parameter No.
TQP6C.
ii.
CERIODAPHNIA DUBIA (A)
If the Ceriodachnia dubia NOEC for survival is less than the 100% effluent dilution, enter one
("1"); otherwise, enter zero ("O").
Parameter No. TLP38.
(B)
Report the Ceriodachnia dubia NOEC value for
)
survival, Parameter No. TOP 3B.
(C)
Report the Ceriodachnia dubia NOEC value for reproduction, Parameter No. TPP38.
(D)
Report the t coefficient of variation (larger of low flow and control dilutions), Parameter No.
TQP38.
5.
TOXICITY REDUCTION EVALUATION (TRE) a.
Within ninety (90) days of confirming lethality in the ratests, the permittee shall submit a Toxicity Reduction Evaluation (TRE) Action Plan and Schedule for conducting a TRE.
The TRE Action Plan shall specify the approach and 1
methodology to be used in performing the TRE.
A Toxicity Reduction Evaluation is an investigation intended to deter-mine those actions necessary to achieve compliance with water quality-based effluent limits by reducing an efflu-
)
ent's toxicity to an acceptable level. A TRE is defined as a step-wise process which combines toxicity testing and analyses of the physical and chemical characteristics of a toxic effluent to identify the constituents causing effluent toxicity and/or treatment methods which will reduce the effluent toxicity. The TRE Action Plan shall lead to the successful elimination of effluent toxicity at the low flow dilution and include the following:
1.
SPECIFIC ACTIVITIES The plan shall detail the specific approach the permittee intends to utilize in conducting the TRE.
PERMIT NO. TX0065854 PAGE 9 OF PART II The approach may include toxicity characterizations, identifications and confirmation activities, source evaluation, treatability studies, or alternative approaches. When the permittee conducts Toxicity characterization Procedures the permittee shall perform multiple characterizations and follow the procedures specified in the documents " Methods for Aquatic Toxicity Identification Evaluations: Phase I i
Toxicity Characterization Procedures" (EPA-600/6-l 91/003), or alternate procedures. When the permittee i
conducts Toxicity Identification Evaluations and i
Confirmations, the permittee shall perform multiple identifications and follow the methods specified in the documents " Methods for Aquatic Toxicity Identification Evaluations, Phase II Toxicity Identification Procedures" (EPA /600/3-88/035) and
" Methods for Aquatic Toxicity Identification Evaluations, Phase III Toxicity Confirmation Procedures" (EPA /600/3-88/036), as appropriate.
The documents referenced above may be obtained through the National Technical Information Service (NTIS) by phone at (703) 487-4650, or by writing:
1 U.S. Department of Commerce National Technical Information Service 5285 Port Royal Road i
Springfield, VA 22161 l
11.
Samelina Plan (e.g.,
locations, methods, holding times, chain of custody, preservation, etc.);
1 The effluent sample volume collected for all tests shall be adequate to perform the toxicity test, toxicity characterization, identification and l
confirmation p rocedures, and conduct chemical specific analyses when a probable toxicant has been identified.
i Where the permittee has identified or suspects i
specific pollutant (s) and/or source (s) of effluent toxicity, the permittee shall conduct, concurrent with toxicity testing, chemical specific analyses for the identified and/or suspected pollutant (s) and/or source (s) of effluent toxicity. Where lethality was demonstrated within 24 hours2.777778e-4 days <br />0.00667 hours <br />3.968254e-5 weeks <br />9.132e-6 months <br /> of test initiation, each 24 hour2.777778e-4 days <br />0.00667 hours <br />3.968254e-5 weeks <br />9.132e-6 months <br /> composite sample shall be analyzed independently. Otherwise the permittee may substitute a composite sample, comprised of equal portions of the individual 24 hour2.777778e-4 days <br />0.00667 hours <br />3.968254e-5 weeks <br />9.132e-6 months <br /> composite samples, for the chemical specific analysis.
111.
Quality Assurance Pla7 (e.g., QA/QC implementation, corrective actions, etc.); and iv.
Proieet Oroanization (e.g.,
project staff, project manager, consulting services, etc.).
b.
The permittee shall initiate the TRE Action Plan within thirty (30) days of plan and schedule submittal. The permittee shall assume all riska for failure to achieve the required toxicity reduction.
i 7M v
~. _ - -.. _--.. - -
. -.. - - -. ~ -. -.. -.
D 1
j 4
PERMIT NO. TX0065854 PAGE 10 OF PART I' t
c.
The permittee shall submit a quarterly TRE Activities Report j
with the Discharge Monitoring Report in the months of
_i i
January, April, July, and October containing information on toxicity reduction evaluation activities including:
t i
1.
any data and/or substantiating documentation which I
identifies the pollutant (s) and/or source (s) of
[
j effluent toxicity;
}
i ii.
any studies / evaluations and results on the treatability of the facility's affluent toxicity; and l
I I
lii.
any data which identifies effluent toxicity control i
mechanisms that will reduce effluent toxicity to the i
level necessary to meet no lethality at the low flow i
effluent concentration (critical dilution).
L j
A opy of the TRE Activities Report shall be also be i
submitted to the Texas Natural Resource Conservation i
i Commission.
d.
The pern.ittee shall submit a Final Report on Toxicity Reduction Evaluation Activities no later than twenty-eight (28) months from confirming lethality in the retests, which l
mechanism selected that will, when implemented, result in l-provides information pertaining to the specific control reduction of effluent toxicity to no lethality at the low flow effluent concentration (critical dilution). The report will also provide a specific corrective action schedule for t
l implementing the selected control mechanism.
j A copy of the Final Report on Toxicity Reduction Evaluation Activities shall also be submitted to the Texas Natural i
Resource Conservation Commission.
I K.
WHOLE EFFLUENT TOXICITY TESTING (TX 24-HOUR ACUTE LC50 FRESHWATER) l 1.
SCQPL _ FREQUENCL_AND_MEIBODOLQGI i
a.
The provisions of this section shall apply individually and j
separately to Outfall 001.
No samples or portions of samples from one outfall may be composited with samples or portions of samples from another outfall.
The provisions of this section are in addition to other biomonitoring requirements in this permit.
j 24-HOUR ACUTE TEST SUBSTITUTIONS - If any other tests j
conducted under biomonitoring requirements elsewhere in Part i
II of this permit include the 100% effluent concentration in the dilution series, the mean survival results at 24 hours2.777778e-4 days <br />0.00667 hours <br />3.968254e-5 weeks <br />9.132e-6 months <br /> j
from those tests for each species may be submitted to fulfill the requirements of this section.
See Item 4.b of this section for acceptable test substitations. The 50%
survival in 100% effluent for a 24-hour period standard I
applies to all tests utilizing a 100% effluent dilution, i
regardless of whether the results are submitted for j
compliance with the minimum testing frequency described in Item 1.c, below.
i b.
The permittee shall test the effluent for lethality in
{
accordance with the provisions of this section. Such l
testing will determine if an effluent sample meets the Texas surface Water Quality standard listed at 30 TAC
$307.6(e)(2)(B) of greater than 50% survival of the appropriate test organisms in 100% effluent for a 24-hour period.
i
.., ~
PERMIT NO. TX0065854 PAGE 11 OF PART II c.
The permittee shall submit the results of these tests on the Discharge Monitoring Report (DMR) due in the month following 1
the test.
The toxicity tests shall be conducted two (2) times Der year at six month intervals for the life of the oermit.
l d.
The permittee shall implement all toxicity tests utilizing j
the test organisms, procedures, and quality assurance requirements specified in this section of the permit and in accordance with the EPA manual, " Methods for Measuring the 1
l Acute Toxicity of Effluents and Receiving Waters to j
Freshwater and Marine Organisms", EPA /600/4-90/027, or the latest update thereof.
The permittee shall repeat a test including the control and all effluent dilutions if the i
procedures and quality assurance requirements defined in the j
test methods or in this permit are not satisfied. A repeat test shall be conducted within the required reporting period cf any test determined to be invalid in accordance with Item l
3.b, below, of this section.
i i
e.
The permittee shall use the Danhnia gulgg acute static 24-hour definitive toxicity test.
A minimum of five (5) replicates with eight (8) organisms per replicate must be used in the control and in each effluent dilution of this test.
i f.
The permittee shall use the Pimechales cromelas (Fathead minnow) acute static 24-hour definitive toxicity test.
A minimum of five (5) replicates with eight (8) organisms per i
replicate must be used in the control and in each effluent l
dilution of this test.
g.
In addition to an appropriate control (On effluent), a 100%
i effluent concentration shall be used in the toxicity tests.
h.
This permit may be reopened to require whole effluent toxicity limits, chemical specific effluent limits, 1
additional testing, and/or other appropriate actions to address toxicity.
l 2.
PERSISTENT LETHALITY i
a.
If any toxicity test at the 100% effluent concentration demonstrates 50% or greater mortality, the permittee shall j
conduct two (2) additional tests (retests) for each species that demonstrates mortality and report these results as required in Item 4 of this section.
The two additional ratests shall be conducted monthly during the next two i
consecutive months.
Five (5) dilutions in addition to an l
appropriate control (On effluent) shall be used in the two
[
(2) retests.
These effluent concentrations shall be 100%,
50%, 25%, 131, and 64.
If one of the retests indicates 50%
or greater mortality at the 100% effluent concentration, the permittee may suspend additional ratesting for this period and shall notify the EPA in writing within five (5) days.
If none of the retests indicates 50% or greater mortality at the 100% effluent concentration, the permittee shall
)
continue testing at the original frequency (two times per year, per species, following the original schedule).
b.
Within thirty (30) days after submitting the original and i
retest results which demonstrate 50% or greater mortality at the 100% effluent concentration, the permittee shall
PERMIT NO. TX0065854 PAGE 12 OF PART II initiate a Toxicity Reduction Evaluation (TRE) in accordance with the procedures stated in Item 5 of this section. The permittee shall continue biomonitoring quarterly (as a minimum) during the TRE using the affected species unless otherwise authorized by the permitting authority.
c.
Within three (3) years from the date of completion of the test confirming 50% or greater mortality at the 100%
effluent concentration, the permittee shall demonstrate greater than 50% mean survival of the appropriate test organism in 100% effluent for a 24-hour test period for all subsequent testing.
3.
REOUIRED TOXICITY TESTING CONDITIONS a.
CONTROL / DILUTION WATER control and/or dilution water used in the test shall normally consist of a standard, synthetic, moderately hard, reconstituted water of similar pH and alkalinity to the closest downstream perennial water.
If the permittee is utilizing the results of a 48-hour acute test or 7-day chronic test to satisfy these 24-hour acute biomonitoring requirements in accordance with Item 1.a, the permittee may use receiving water as the control and dilution water if the control meets the requirements of Item 3.b.
b.
CONTROL SURVIVAL If more than 10% of the test organisms in any control die within 24 hours2.777778e-4 days <br />0.00667 hours <br />3.968254e-5 weeks <br />9.132e-6 months <br />, that test including the control and all effluent dilution (s) shall be repeated with all results from k21h tests reported as per Item 4 of this section.
c.
SAMPLES AND COMPOSITES The samples shall be collected at a point following the last treatment unit.
One flow-weighted 24-hour composite sample representative of normal operating flows will be collected from each outfall, and a discrete test will be run on each composite sample.
A 24-hour composite sample consists of a minimum of twelve (12) effluent portions collected at equal time intervals and combined proportional to flow or a sample continuously collected proportional to flow over a 24-hour operating day.
Samples shall be chilled to 4 degrees centigrade during collection, shipping, and/or storage.
The toxicity tests must be initiated within 36 hours4.166667e-4 days <br />0.01 hours <br />5.952381e-5 weeks <br />1.3698e-5 months <br /> after collection of the 24-hour composite sample.
The 24-hour composite sample must be collected such that the sample is representative of any periodic episode of chlorination, biocide usage, or other potentially toxic substance discharged on an intermittent basis.
4.
REPORTING a.
The permittee shall prepare a full report of the results of all tests conducted pursuant to this Part in accordance with the Report Preparation Section of " Methods for Measuring *.no Acute Toxicity of Effluents and Receiving Waters to Fresn-water and Marine Organisms", for every valid or invalad
PERMIT NO. TXOO65854 PAGE 13 OF PAPT !!
toxicity test initiated, whether carried to completion or not.
The permittee shall retain each full report pursuant to the provisions of Part III.C.3 of this permit.
The permittee shall submit full reports only upon the specific request of the Agency.
b.
The permittee shall report the following results of each toxicity test on the subsequent monthly DMR for that reporting period in accordance with Part III.D.4 of this j
permits i.
PIMEPHALES PROMELAS (TATHEAD MINNOW)
Enter the following codes on the DMR for Parameter No.
TIE 6C:
"0" if mean survival at 24 hours2.777778e-4 days <br />0.00667 hours <br />3.968254e-5 weeks <br />9.132e-6 months <br /> is creater than 50%
in 100% effluent; "1"
if the mean survival at 24 hours2.777778e-4 days <br />0.00667 hours <br />3.968254e-5 weeks <br />9.132e-6 months <br /> is less than or eaual to 50% in 100% effluent.
In cases of test substitution (See 24-HOUR ACUTE TEST SUBSTITUTIONS, Item 1.a, above), mean survival results in 100% effluent from the 48-hour acute or 7-day chronic Pimechales cromelas tests determined at 24 hours2.777778e-4 days <br />0.00667 hours <br />3.968254e-5 weeks <br />9.132e-6 months <br /> shall be reported on the DMR under Parameter No.
TIE 6C.
ii.
DAPHNIA PULEX Enter the following codes on the DMR for Parameter o.
TIE 3D:
"0" if mean survival at 24 hours2.777778e-4 days <br />0.00667 hours <br />3.968254e-5 weeks <br />9.132e-6 months <br /> is creater than 50%
in 100% effluent; "1"
if the mean survival at 24 hours2.777778e-4 days <br />0.00667 hours <br />3.968254e-5 weeks <br />9.132e-6 months <br /> is less than or eaual to 50% in 100% effluent.
In cases of test substitution (See 24-HOUR ACUTE TEST SUBSTITUTIONS, Item 1.a, above), mean survival results in 100% effluent from the 48-hour Dachnia oulex acute test or the 7-day chronic Coriodachnia dubia test determined at 24 hours2.777778e-4 days <br />0.00667 hours <br />3.968254e-5 weeks <br />9.132e-6 months <br /> shall be reported on the DMR under Parameter No. TIE 3D.
5.
TOXICITY REDUCTION EVALUATION (TRE) a.
Within ninety (90) days of confirming lethality in the retests, the permittee shall submit a Toxicity Reduction Evaluation (TRE) Action Plan and Schedule for conducting a J
TRE.
The TRE Action Plan shall specify the approach and methodology to be used in performing the TRE.
A Toxicity
)
Reduction Evaluation is an investigation intended to deter-mine those actions necessary to achieve compliance with water quality-based effluent limits by reducing an afflu-ent's toxicity to an acceptable level. A TRE is defined as a step-wise process which combines toxicity testing and analyses of the physical and chemical characteristics of a toxic effluent to identify the constituents causing effluent toxicity and/or treatment methods which will reduce the effluent toxicity. The TRE Action Plan shall lead to the successful elimination of ef fluent toxicity at the low flow dilution and include the following:
i j
PERMIT NO. TXOO65854 PAGE 14 OF PART II
)
1.
SPECIFIC ACTIVITIES The plan shall detail the specific approach the permittee intends to utilize in conducting the TRE.
The approach may include toxicity characterizations, identifications and confirmation activities, source evaluation, treatability studies, or alternative approaches. When the permittee conducts Toxicity Characterization Procedures the permittee shall perform multiple characterizations and follow the procedures specified in the documents " Methods for Aquatic Toxicity Identification Evaluations: Phase I Toxicity Characterization Procedures" (EPA-600/6-91/003), or alternate procedures. When the permittee conducts Toxicity Identification Evaluations and Confirmations, the permittee shall perform multiple identifications and follow the methods specified in the documents " Methods for Aquatic Toxicity Identification Evaluations, Phase II Toxicity Identification Procedures" (EPA /600/3-88/035) and
" Methods for Aquatic Toxicity Identification Evaluations, Phase III Toxicity confirmation Procedures" (EPA /600/3-88/036), as appropriate.
The documents referenced above may be obtained through che National Technical Information Service (NTIS) by phone at (703) 487-4650, or by writing:
U.S. Department of Commerce National Technical Information Service 5285 Port Royal Road Springfield, VA 22161 l
11.
Samolino Plan (e.g.,
locations, methods, holding times, chain of custody, preservation, etc.);
The effluent sample volume collected for all tests i
shall be adequate to perform the toxicity test, toxicity characterization, identification and j
confirmation procedures, and conduct chemical specific analyses when a probable toxicant has been identified.
Where the permittee has identified or suspects specific pollutant (s) and/or source (s) of effluent toxicity, the permittee shall conduct, concurrent with toxicity testing, chemical specific analyses for the identified and/or suspected pollutant (s) and/or source (s) of effluent toxicity. Where lethality was demonstrated within 24 hours2.777778e-4 days <br />0.00667 hours <br />3.968254e-5 weeks <br />9.132e-6 months <br /> of test initiation, each 24 hour2.777778e-4 days <br />0.00667 hours <br />3.968254e-5 weeks <br />9.132e-6 months <br /> composite sample shall be analyzed independently.
Otherwise the permittee may substitute a composite sample, comprised of equal portions of the individual 24 hour2.777778e-4 days <br />0.00667 hours <br />3.968254e-5 weeks <br />9.132e-6 months <br /> composite samples, for the chemical specific analysis, iii. ouality Assurance Plan (e.g., QA/QC implementation, corrective actions, etc.); and iv.
Proiect Orcanization (e.g.,
project staff, project I
manager, consulting services, etc.).
b.
The permittee shall initiate the TRE Action Plan within
+
thirty (30) days of plan and schedule submittal. The permittee shall assume all risks for failure to achieve the required toxicity reduction.
1
PERMIT NO. TX0065854 PAGE 15 OF PART II c.
The permittee shall submit a quarterly TRE Activities Reoort with the Discharge Monitoring Report in the months of January, April, July, and October containing information on toxicity reduction evaluation activities including:
1.
any data and/or substantiating documentation which identifies the pollutant (s) and/or source (s) of effluent toxicity; 11.
any studies / evaluations and results on the treatability of the facility's effluent toxicity; and 111.
any data which identifies effluent toxicity control mechanisms that will reduce effluent toxicity to the level necessary to meet no lethality at the low flow t
effluent concentration (critical dilution).
A copy of the TRE Activities Report shall be also be submitted to the Texas Natural Resource Conservation Commission.
d.
The permittee shall submit a Final Report on Toxicity Reduction Evaluation Activities no later than twenty-eight (28) months from confirming lethality in the retests, which provides information pertaining to the specific control 4
mechanism selected that will, when implemented, result in 4
reduction of effluent toxicity to no lethality at the low flow effluent concentration (critical dilution). The report will also provide a specific corrective action schedule for implementing the selected control mechanism.
A copy of the Final Report on Toxicity Reduction Evaluation i
Activities shall also be submitted to the Texas Natural Resource Conservation Commission.
i L.
MIXING ZONE DEFINITION ITEXAS)
Chronic toxic criteria apply at the edge of the mixing zone.
The mixing zone is defined as a volume within a radius of 100 feet from the point of discharge.
M.
RAW WATER INTAKE The makeup water intake, located on Lake Granbury, is approved pursuant to Section 316(b) of the Clean Water Act.
The applicant shall conduct a program to monitor the impingement and entrainment of organisms at the circulating water intake structure in Squaw Creek Reservoir.
Pfentf No. fx0065854 9EV. 12/8/93) oACE 1 CF Pani fff PART III shall also. furnish to the of rector, upon request,
$tANDARD CON 0!TIONS FOR NPDES PERNits copies of records required to be kept by this permit.
SECTION A.
CENERAL CONDITIONS 3.
Criminal ard Civil Liscility Except as previoeg in permit conditions on "sypassing" 1.
fetroduction and " Upsets", nothing in this permit shall be construed in accoraance with the provisions of 40 CFR Part 122.41, to relieve the permittee from civit or criminal et. seq., this permit incorporates by reference ALL penalties f or nonconsiliance. Any false or materially I
conditions and requirements applicacte to NPOES Permits misteading representation or concestment of inf ormation I
set forth in the Clean Water Act, as amended, (herein-required to be reported by the provisions of the af ter known as the "Act") as well as ALL applicable permit, the Act, of applicable regulations, which regulations.
avoids or ef f ectively defeats the regulatory purpose of the Permit may subject the Permittee to criminal 2.
Outy to Cenetv enforcement pursuant to 18 U.S.C. section 1001.
The permittee must comply with all conditions of this permit. Any permit noncompliance constitutes a viola-9.
Oft and Nazardous Substance liability tion of the Act and is grounds for enforcement action; Nothing in this permit shall be construed to prectude for permit termination, revocation and reissuance, or the institution of any legal action or retleve the modification; or for dental of a permit renewal appli-permittee from any responsibilities, liabilities, or cation.
penalties to which the permittee is or may be subject under section 311 of the Act.
3.
fonie pottutants 10.
state Laws a,
Notwithstanding Part !!!.A.5, if any toaic effluent Nothing in this permit shall be construed to preclude standard or prohibition (including any schetM e of the institution of any legal action or relieve the wiptience specified in such ef fluent standard or permittee from any responsibilities, liabilities, or prohibition) is promulgated under Section 307(a) of penalties established pursuant to any applicable State the Act f or a toxic pot tutant which is present in law or regulation taider authority preserved by Section the discharge and that standard or prohibition is 510 of the Act.
more stringent than any limitation on the pottutant in this permit, this permit shall be modified or 11.
Severabitity revoked and reissued to conform to the toxic The provtsions of this permit are severable, and if any effluent standard or prohibition.
provision of this permit or the application of any provision of this permit to any ciretsistance is held b.
The permittee shall cumpty with effluent standards invalid, the application of such provtston to other or prohibitions established under Section 307(a) of circumstances, and the remainder of this permit, shall the Act for toxic pollutants within the time not be affected therecy.
provided in the regulations that established those standards or prohibitions, even if the permit has SEttt0N g.
PROPER OPERATION AND MAfMTENANCE not yet been modified to incorporate the reoJirement.
1.
Need to Natt or Reduce not a Defense It shall not be a defense for a permittee in an 4 Outy to Reapoly enforcement action that it would have been necessary to Lf the peretttee wishes to continue an activity hatt or reduce the permitted activity in order to regulated by this permit after the expiration date of maintain compliance with the conditions of this permit.
this permit, the permittee must apply for and obtain a The permittee is responsible for maintaining adequate new permit. The application shall be sutunitted at least safeguards to prevent the discharge of totreated or l
180 days before the expiration date of this permit. The inadequately treated wastes during electrical power Director may grant permission to stAnnit an application f ailure either by means of alternate power sources, less than 180 days in advance but no later than the standby generators or retention of inadequately treated permit empiration date.
Continuation of expiring effluent.
permits that L be governed by ' regulations pronsJigated at 40 CFR Part 122.6 and any subsequent amenements.
2.
Duty to Mitieste i
The permittee shall take all reasonable steps to 5.
Permit stenibility minietre or prevent any discharge in viotation of this This perett may be modified, revoked and reissued, or terminated for cause in accordance with 40 CFR 122.62-permit which has a reasonable likelihood of adversely af fecting hunen health or the envirormient.
64 The filing of a roguest for a permit modification, revocation and reissuance, or termination, or a notifi-3.
Procer Ooeration and Maintenance cation of planned changes or anticipated noncompliance, does not stay any permit condition.
a.
The permittee shalt at all times property operate and maintain att facilities and systems of G.
Procerty afohj.1 treatment and control (and related appurtenances)
This perett does not convey any property rights of any which are installed or used by permittee as 1
1 sort, or any exclusive privilege, efficiently as possible and in a manner which will minimite @ sets and discharges of excessive P.
Outy to Provide IMormation pollutants and will achieve compliance with the The permittee shall furnish to the Director, within a conditions of this permit. Proper operation and reasonable time, any information which the Director may maintenanck also includes adequate Laboratory reeJest to determine whether cause esists for modifying, controls and appropriate quality assurance revoking and reissuing, or terminating this permit, or procedures. This provision requires the operation to determine compliance with this permit. The permittee of backte or auxiliary facilities or similar systems which are instat ted by a permittee only 1
e PERMff 40. fv0065854 toEv. 12/9/93) pace 2 0F pa#7 fit when the operation is necessary to achieve b.
Conditions necessary f or a demonstration of upset, constience with the conditions of this permit.
A permittee uno wishes to estactish the af firmative def ense of upset shalt demonstrate, through properly b.
The permittee shall provide an adequate operating signed, contenssoraneous operating logs, or other staff which is duty qualified to carry out relevant evidence that:
operation, maintenance and testing f metions rewired to insure compliance with the conditions of (1) An upset occurred and that the permittee can this permit.
identify the cause(s) of the upset; 4.
8voass of freatment Facilities (2) The permitted f acility was at the time t>eing property operated; a.
8voass not eseeedino limitations. The permittee may attow any cypass to occur wnich does not cause (3) The permittee sutznitted notice of the upset as effluent limitations to be exceeded, but only if it required by Part !!I.D.7; and, also is for essential maintenance to assure ef ficient operation. These bypasses are not subject (4) The permittee complied with any remedial to the provisions of Parts III.B.4.b. and 4.c.
measures required by Part lit.B.2.
b.
Notice c.
Burden of eroof. In any enforcement proceeding, the permittee seeking to establish the occurrence of an (1) Anticipated bvoass. If the permittee knows in upset has the burden of proof.
advance of the need for a bypass, it shall submit prior notice, if possible at least ten 6.
Removed substances days brfore the date of the bypass.
Solids, sewage studges, filter backwash, or other pollutants removed in the course of treatment or j
(2) Unenticioated bvoass.
The permittee shall, wastewater control shall be disposed of in a manner such within 26
- hours, submit notice of an as to prevent any pollutant f rom such materials f rom unanticipated bypass as required in Part entering navigable waters.
III.D.7.
7.
Percent Removat c.
Prohibition of bvDass For platicly owned treatment works, the 30 day average percent removal for Biochemical Oxygen Demand and Total (1) Bypass is prohibited, and the Director may take Suspended Solids shall not be less than 65 percent enforcement action against a permittee for unless otherwise authorized by the permitting authority bypass, unless in accordance with 40 CFR 133.103.
(a) Bypass was unavoidable to prevent loss of SECTION C.
MONITORlWG AND RECORDS life, personal injury, or severe property damage; 1.
Insoection and Entry the permittee shall allow the Director, or an authorized (b) There were no feasible alternatives to the representative, upon the presentation of credentials and bypass, such as the use of auxiliary other doctanents as may be required by the law to:
treatment facilities, retention of untreated wastes, or maintenance during a.
Enter upon the permittee's premises.here a normal periods of equipment downtime, regulated facility or activity is located or This condition is not satisfied if conducted, or where records must be kept under the a
adequate back-up equipment should have conditions of this permit; been installed in the exercise of reasonable engineering judipment to prevent b.
Have access to and copy, at reasonab' e times, any a bypass which occurred Wring normal records that must be kept under tne conditions of periods of equipment downtime or this permit; preventive maintenance; and, c.
Inspect at reasonable times any facilities, equip-(c) The per1Ri t t ee sutzei tted notices as ment (including monitoring and controt equi grnent ),
required by Part !!!.B.4.b.
practices or operations regulated or reoutred under this permit; and (2) The Director may allow an anticipated bypass after considering its adverse effects, if the d.
Sample or monitor at reasonante t me s. for the Director determines that it will meet the purpose of assuring permit carot s ance or as j
three conditions listed at Part !!!.B.4.c(1).
otherwise authorited by the Act, any hostanCes or parameters at any location.
5.
Uoset Conditions 2.
Representative Samoline a.
Effect of an upset.
An teset constitutes an Samples and measurements taken for e purpose of
'a af firmative defense to an action brought for noncom-monitoring shall be representative o'
- ae monitored pliance with such technology-based permit effluent activity.
Limitations if the requirements of Part III.B.5.b.
are met. No determination made Wring administra-3.
Retention of Records tive review of claims that noncompliance was caused The permittee shall retain records of asi monitoring by upset, and before an action for noncompliance, is information, including all calibration ams maintenance final administrative action subject to judicial records and all original strip chart 9(oraings f or review.
continuous monitoring ins t rtament a t i on, - e es of all reports required by this permit, and re< x n 9 at t data
-=
i i
l I
DERMif No, fr0065854 (oEV. 12/9/93)
DAGE 3 0F PApf !!!
used to complete the application for this permit, for a b.
Municioat s emits e
period of at least 3 years from the date of the sancte, Any change in tne f acility discharge (including the measurement, report, or application. This period may be introduction of any new source or significant extended by request of the Director at any time.
discharge or significant enanges in the quantity or quality of existing discharges of pollutants) must 4 Record Contents be reported to the permitting authority. In no case l
Recoros of monitoring information shall includes are any new connections, increased flows, or significant changes in inHuent quality permitted a.
The date, exact place, and time of sampling or that will cause violation of the effluent measurements; limitations specified herein.
b.
The individual (s) who performed the sanpling or measurements; 2.
AnticiDated Noncometfance 0-c.
The date(s) and time (s) analyses were performed; The permittee snaLL give advance notice to the Director d.
The individuat(s) who performed the analyses; of any planned changes in the permitted f acility or e.
The analytical techniques or methods used; and activity which may result in noncompliance with permit f.
The results of such analyses.
requirements 5.
Monitorina Procedures 3.
transfers This permit is not transferable to any person except 1
a.
Monitoring must be conducted according to test after notice to the Director. The Director may require procedures approved saider 40 CPR Part 136, unless modification or revocation and retssuance of the permit
}
other test procedures have been specified in this to change the name of the permittee and incorporate such permit or approved by the Regional A<bninistrator.
Other requirements as may be necessary under the Act.
b.
The permittee shall calibrate and perform 4.
Discharae Monitorina Renorts and Other Reports i
maintenance procedures on att monitoring and Monitoring resutts naast be reported on Discharge l
analytical instruments at intervals frequent enough Monitoring Report (DMR) Form EPA No.
3320 1 in to insure accuracy of measurements and shalt main-accordance with the " General Instructions" provided on j
tain appropriate records of such activities.
the form. The permittee shall submit the original DMR signed and certified as required by Part !!!.D.11 and j
c.
An adeguate analytical quality control program, all other reports required by Part III.D. to the EPA at i
including the analyses of sufficient standards, the address below. Duplicate copies of DMR's and all spikes, and duplicate samples to insure the accuracy other reports shall be submitted to the appropriate of all reg ired analytical results shall be State agency (les) at the following address (es):
)
maintained by the permittee or designated consnercial laboratory.
[PA,:
4 Water Management Division 6.
Flow Measurements Enforcement tranch (6W E)
Appropriate flow measurement devices and methods U.S. Environmental Protection j
consistent with accepted scientific practices shall be Agency, Region 6 selected and used to ensure the accuracy and reliability 1445 Ross Avenue of measurements of the volume of monitored discharges.
Deltas, fx 75202 2733 The devices shall be installed, calibrated, and i
meintained to insure that the accuracy of the New Mexico:
measurements is consistent with the accepted capability Program Manager i
of that type of device.
Devices selected shall be surface Water Quality Bureau capable of measuring flows with a maxinssa deviation of New Mexico Envirorinent Department d
less than 10% from true discharge rates throughout the 1190 Saint Francis Drive j
range of expected discharge voltanes.
Santa Fe, NM 87501-4182 l
SECTION D.
- EPORflNG REQUIREMENTS Oklahoma (Industrial Permits Only):
1 Director 4
1.
Ptanned Channes Oklahoma Department of Environmental Quality a.
Industrial Permits 1000 NE 10th Street The permittee shall give notice to the Director as soon Oklahoma City, OK T31171212 i
as possible of any planned physical alterations or additions to the permitted f acility. Notice is required Loulslant:
only when:
Assistant Secretary for Water j
Water Pollution Control Division 1
(1) the alteration or addition to a permitted Louisiana Department of j
facility may meet one of the criteria for Envirorsnental Quality determining whether a facility is a new source P.O. Box 82215 in 40 CFR Part 122.29(b); or, Baton Rouge, LA 70884 2215 (2) the alteration or addition could significantly 5.
Additionat Monitorina by the permittee j
change the nature or increase the quantity of If the permittee monitors any pottutant more frequently pollutants discharged.
This notification than required by this permit, using test procedures applies to pollutants which are subject neither approved m der 40 CFR Part 156 or as specified in this to ef fluent timitations in the permit, nor to permit, the results of this monitoring shall be included notification requirements listad at Part in the calculation and renorting of the data submitted
!!!.0.10.a.
in the Discharge Monitoring Report (DMR).
Such T
~
4 l
- Eawff ho, fr0065854 (GEV. 12/8/93)
DAGE 4 0F eAef fit i
increased monitoring fremency shall also be indicated (excluding Total Phenots) which is not limited in 1
on the DMR.
the permit, if that discharge will exceed the highest of the following " notification levels":
6.
Averacina of w asurements e
Calculations f or at t L set tations which require averaging (1) One hundred micrograms per titer (100 se/L);
i of measurements shall utilize an arithmette mean unless (2) Two hundred micrograms per titer (200 se/L) for otherwise specified by the Director in the permit.
acrotein end acrytonitrite; five huidred micro-grams per liter (500 se/L) for 2,4 dinitro-7 Twenty-Four hour Reportino phenol and for 2-methyl-4,6 dinitrophenot; and one milligram per titer (1 mg/L) for antimony; a.
The permittee shall report any noncogliance which (3) Five (5) times the maximun "ncentration value may encanger health or the envirorment.
Any reported for that pollutant in the permit information shall be provided orally within 24 hours2.777778e-4 days <br />0.00667 hours <br />3.968254e-5 weeks <br />9.132e-6 months <br /> apptication; or from the time the peretttee becomes aware of the (4) The levet established by the Director.
circunaterices.
A written sutnission shall be provided within 5 days of the time the permittee b.
That any activity has occurred or will occur which becomes aware of the circunstances.
The report would result in any discharge, on a non-routine or shall contain the following informations infrequent basis, of a tonic pollutant which is not limited in the permit, if that discharge will exceed (1) A description of the nonconct ience and its the highest of the following " notification levets":
cause; (1) Five hundred micrograms per liter (500 sg/L);
(2) The period of noncenpliance including exact (2) One mitiisram per liter (1 mg/L) for antimony; dates and times, and if the noncogliance has (3) Ten (10) times the maximum concentration value not been corrected, the anticipated time it is reported for that pollutant in the permit expected to continue; and, application; or (4) The levet estaclished by the Director.
(3) Steps being taken to reduce, eliminate, and prevent recurrence of the noncompt ying
- 11. Sienatory Reautrements discharge.
At t applications, reports, or information Stimitted to the Director shall be signed and certified.
b.
The following shall be included as information which must be reported within 24 hour2.777778e-4 days <br />0.00667 hours <br />3.968254e-5 weeks <br />9.132e-6 months <br />st a.
All permit applications shall be signed as follows:
(1) Any unanticipated bypass which exceeds any (1) For a corooration - by a responsible corporate effluent limitation in the permit; officer. For the purpose of this section, a responsible corporate officer means:
(2) Any upset which exceeds any of f tuent limitotion in the permit; and, (a) A president, secretary, treasurer, or vice-president of the corporation in (3) Violation of a maminua daily discharge charge of a principal business function, limitation for any of the pottutants listed by or any other person who performs similar the Director in Part 11 (industrial permits policy or decision making functions for only) of the permit to be reported within 24 the corporation; or, hours.
(b) The manager of orn or more manufacturing, The Director may waive the written report on a case-production, or operating facilities t
by-case basis if the oral report has been received employing more than 250 persons or having within 24 hours2.777778e-4 days <br />0.00667 hours <br />3.968254e-5 weeks <br />9.132e-6 months <br />.
gross annual sales or empenditures G.
Other Woncomot ience exceeding $25 mittion (in second quarter 1980 dotters), if authority to sign The peretttee shall report all instances of nonconctience not reported under Parts !!!.D.4 and D.7 docunants has been assigned or delegated to the manager in accordance with and Port I.B (for industrial permits only) at the time corporate procedures, monitoring reports are sutuni t ted, the reports shall contain the information listed at Part III.D.7.
(2) For a partnershio or sote croorietorshio - by a general partner or the proprietor, 9.
Other information respectively.
Where the per1mittee becomes aware that it f ailed to sutai t any relevant facts in a permit application, or (3) For a asanicioality. State. Federat. or other submitted incorrect information in a permit application oet te noency - by either a principal executive or in any report to the Director, it shall promptly officer or ranking elected official.
For sutait such facts or information.
purposes of this section, a principal executive
- 10. Q g es in Discharnes of fenic Substances officer of a Federal agency includes:
Att ecsting manufacturing, comum6rc t a t, mining, and (a) The chief esecutive officer of the silvacultural permittees shalt notify the Director as agency, or soon as it knows or has reason to believe:
(b) A senior esecutive of ficer having respon-a.
That any activity has occurred or will occur which -
sibility for the overett operations of a would result in the discharge, on a routine or principal geographie unit of the agency.
frequent basis, of any toxic pollutant listed at 40 CFR Part 122, Appendix D,
Tables il and III
m
.m_
i PERuff No. fr0065854 (REY. 52/8/93)
PA0E 5 0F Pitt !!!
b.
All reports required by the permit and other This information will be used by the Texas SMPO and EPA information requested by the Director shall be to consult according to the requirements of 36 CFg Part signed by a person described above or by a duty 800.4 800.6 on methods to minimite harm to historical authorized representative of that person. A person properties. The applicant will be contacted within 30 is a Aly authorized representative only if:
days acout further actions that may be needed to meet the requirements of 36 CFR Part 800.
(1) The authoritation is made in writing by a person described above; SECff0N E.
PENattIES F0s vlot Af f 0NS OF eERMf f CCN0f fl0NS (2) The authoritation specifies either an 1.
Cr W nal individual or a posttion having responsibility for the overall operation of the regulated a.
Neeticent Violations facility or activity, such as the position of The Act prosit $es that any person uno negligently plant manager, operator of a wet t or a met t violates perett conditions implementing Section 301,
- field, steer int endent,
or position of 302, 306, 307, 308, 318, or 405 of the Act is equivalent responsibility, or an Indivihet or s @ ject to a fine of not less than $2,500 nor more position having overall responsibility for than $25,000 per day of violation, or by environmental matters for the company. A duty authorized representative may thus be either a laprisortment for not more than 1 year, or both, named individual or en individual occupying a b.
Knowine violations named position; and, The Act provides that any person who knowingly violates permit conditions iglementing Sections (3) The written authoritation is sutsnitted to the 301, 302, 306, 307, 308, 318, or 405 of the Act is
- Director, seject to a fine of not less than S5,000 nor more i
than $50,000 per day of violation, or by c.
Certification. Any person signing a document under i grisonment for not more than 3 years, or both.
this sect ton snelt make the f ot towing certification:
c.
Knowina Endanserment "I certify under penalty of law that this document The Act provides that any person who knowingly j
and ati attachments were prepared mder my direction violates permit conditions taptementing Sections I
or supervision in accordance with a system designed 301, 302, 303, 306, 307, 308, 318, or 405 of the Act a
to assure that qualified personnel property gather and tao knows at that time that he is placing and evaluate the information stdsnitted. Based on my another person in launinent danger of death or inquiry of the person or persons who manage the serious bodily injury is s@ ject to a fine of not system, or those persons directly responsible for more than $250,000, or by igrisorveent for not more gathering the information, the information sutsnitted than 15 years, or both.
is, to the best of my knowledge and belief, true, accurate, and complete. I an aware that there are d.
False Statements significant penalties for semitting falso the Act provides that any person who knowingly makes information, including the possibility of fine and any false material statement, representation, or igrisorsnont for knowing violations."
certification in any application, record, report,
- 12. Availability of eenorts plan, or other document filed or required to be maintained under the Act or who knowingly f alsifies, Escept for app 6tcations, effluent data, permits, and tampers with, or renders inaccurate, any monitoring other data specifled in 40 CFR 122.7, any information device or method required to be maintained under the stessitted pursuant to this permit may be claimed as Act, shalt upon conviction, be pmished by a fine of confidenttal by the submitter. If no claim is made at not more than $10,000, or by imprisonment for not the time of sutsniss ion, information may be made available to the public without further notice.
more than 2 years, or by both. If a conviction of a person is for a violation conunttted af ter a first 3
conviction of such person mder this paragraph, l
- 13. Archeotoofcat/Mistorical Sites (tenas Permits ontv1 p eishment shall be by a fine of not more than If during the life of this permit, new construction or 1
l Land acquisition or any construction related activity
$20,000 per day of violation, or by igrisonment of not more than 4 years, or by both. (See Section ahere previously undisturbed ground is proposed for 309.c.4 of the clean Water Act) disturbance by the persmittee which is related to an activity authorized by this permit, the permittee sheL L 2.
Civil Penalties send the f ollowing itans to the Texas State Mistoric The Act provides tha' any person who violates a permit Preservation officer (SNPO): (1) a description of the condition implementing Sections 301, 302, 306, 307, 308, new construction and the potential inpact that this 318, or 405 of the Act is s@ ject to a civil penalty not activity may have teon the ground (including studge to exceed $25,000 per day for each violation, application methods, if applicable), and (2) a copy of a USGS topos Ophic map outlining the location of the 3.
Adninistrative Penalties i
project and associated sludge disposal areas or other I
The Act provides that any person who violates a permit ancillary inpact areas. The address of the Texas SHP0 condition implementing Sections 301, 302, 306, 307, 308, i'
ist 318, or 405 of the Act is s e ject to an me inistrative 2
penalty, as follows:
Texas State Historic Preservation officer Department of Antiquities Protection a.
Class I Penalty Texas Historical Consnission P.O. Box 12276 Not to exceed $10,000 per violation nor shalt the mulaus amoet exceed 125,000.
b.
Class II Penalty i
ms e
m-n
l Pfewff No. Tv0065854 (REV. 12/8/g3)
DACE 6 0F PART !!!
Not to exceed $10,000 per day f or each day during
- 10. "Enviroenentat m tection acency" means the U.S.
which the violation continues nor snat t the menisun Envirorvnental Protection Agency, amount exceed 5125,000.
- 11. " Crab sancte" means an individual sagte collected in SECTION F.
OEFINfff0NS Less tnan 15 minutes.
Att definittons contained in Section 502 of the Act shall testy to this permit and are incorporated herein by
- 12. " Industrial user" means a nondonestic discharger, as reference.
Unless otherwise specified in this permit, identitted in 60 CFR 403, introducing pollutants to a additional definitions of words or phrases used in this publicly owned treatment works.
parmit are as follows:
- 13. " National Pot tutant Discharge E t imination System" means 1
"Acj" means the Clean Water Act (33 U.S.C.
1251 et.
the national program for issuing, modifying, revoting seq.), as amended, and reissuing, terminating, nonitoring and enforetng permits, and (mosing and enforcing pretreatment 2.
" A rani ni s t r a t or" means the Acaninistrator of the U.S.
requirements, under Sections 307, 318, 402, and 405 of Envirorynental Protection Agency, the Act.
3.
"Anot icable ef fluent standards arvj t imitations" meana
- 14. " Severe procerty damase" means substantial physical all state and Federat ef fluent standards and timitations damage to property, damage to the treatment facilities to which a discharge is subject mder the Act, which causes them to become inoperable, or s @stantial including, but not L imited to, effluent limitations, and permanent loss of natural resources which can stanoards or performance, toxic effluent standards and reasonably be expected to occur in the absence of a prohibitions, and pretreatment standards.
bypass. Severe property damage does not mean economic loss caused by delays in production.
4 "Apolicable water <maatity standards" means all water quality standards to which a discharge is subject under
- 15. "sewaoe s t uice" means the solids, residues, and the Act, precipitates separated from or created in sewage by the mit processes of a p@licly owned treatment works.
5.
"eyoast" means the intentional diversion of waste Sewage as used in this definition means any wastes, streams from any portion of a treatment facility, including wastes f rom humans, housenolds, commercial establishments, industries, and storm water rmof f, that 6.
" Daily Discharae" means the discharge of a pollutant are discharged to or otherwise enter a publicly owned I
measured during a calender day or any 24 hour2.777778e-4 days <br />0.00667 hours <br />3.968254e-5 weeks <br />9.132e-6 months <br /> period treatment works.
that reasonably represents the calender day for purposes i
of sagling. For pollutants with limiestions expressed
- 16. " Treatment works" means any devices and systems used in i
in terms of mass, the " daily discharge" is calculated as the storage, treatment, recycling and reclamation of the total mass of the pollutant discharged over the municipal sewage and industrial wastes of a liquid sag ling day. For pollutants with limitations expressed nature to Iglement Section 201 of the Act, or necessary in other units of measurement, the " daily discharge" to recycle or reuse water at the most economical cost is calculated as the average measurement of the over the estimated life of the works, including pollutant intercepting sewers, sewage collection systems, ptsping, over the sagling day. " Daily discharge" determination power and other equipnant, and their agurtenances, of concentration made using a cogosite sagte shall be extension, igrovement, remodeling, additions, and i
the concentration of the cogosite sagte. When grab alterations thereof.
sagtes are used, the " daily discharge" determination of concentration shall be arithmetic average (weighted by
- 17. " ting 1" means an exceptional incident in which there is f
flow value) of all samles collected during that unintentional and t emorary nonco m tiance with sagting day, technology based permit ef fluent limitations because of f actors beyond the reasonable control of the permittee.
7.
" Daily averace" (also known as monthly average)
An upset does not include noncompliance to the extent discharge limitations means the highest allowable caused by operational error, igroper t y designed average of " daily discharge (s)" ovsr a calender month, treatment f acilities, inadegaate treatment f acilities, calculated as the sua of all " daily discharge (s)"
lack of preventive maintenance, or caretess or igroper mensred during a calender month divided by the ru.mtier operation.
of " daily discharge (s)" measured during that month.
When the permit establishes daily everage concentration
- 18. For feest coliform bacterie, a samle consists of one effluent L imitations or conditions, the daily everage effluent grab portion collected during a 24 hour2.777778e-4 days <br />0.00667 hours <br />3.968254e-5 weeks <br />9.132e-6 months <br /> period concentration means the arithmetic average (weighted by at peak loads, flow) of all " daily discharge (s)" of concentration determined wring the calendar month where C = daily
- 19. The term "ggg" shall mean million gallons per day, concentration, F = daily flow and n a nunber of daily sagtes; dalty average discharge =
- 20. The term "njg/k" shall mean milligrams per liter or parts per million (ppe).
C F. + C,F, *... + C.F.
- 21. The term "agik" shall mean micrograms per liter or parts F, + F, +... + F, per billion (ppb).
8.
"Daf ty waximun" discharge limitation means the highest
- 22. Meioat f erms:
allowoote " daily discharge" during the calendar month.
a.
"7-day everase", other than for fecal coliform l
2 9 " Director" means the U.S.
Envi rorsnental Protection bacteria, to the arithmetic mean of the daily values j
Agency aegional Administrator or en authorized for all ef fluent samles collected during a calendar j
representative, week, calculated as the sua of alt daily discharges
PE8vif WO. fw0065854 f8EV. 12/9/93)
DAGE 7 0F DAet t t t measured during a calendar week divided by the rueer of deity discharges measured during that week. The 7 day everage for fecal cotiform bacteria is the geometric mean of the values for all ef fluent samples collected W ring a calendar week.
b.
"30 day averane", other than for fecat coliform bacteria, is the arithmetic mean of the daily values for all ef fluent samples collected during a calendar month, calculated as the sun of all daily discharges measured during a calendar month divided by the rueer of daily discharges measured during that
- month, the 30-day average for fecal cotiform bacteria is the geometric mean of the values for att effluent samples collected during a calendar month, "24 hour2.777778e-4 days <br />0.00667 hours <br />3.968254e-5 weeks <br />9.132e-6 months <br /> concosite samote" consists of a minimun of c.
12 effluent portions collected at equal time intervals over the 24 hour2.777778e-4 days <br />0.00667 hours <br />3.968254e-5 weeks <br />9.132e-6 months <br /> period and contined proportional to flow or a sanple collected at frequent intervals proportional to flow over the 24 hour2.777778e-4 days <br />0.00667 hours <br />3.968254e-5 weeks <br />9.132e-6 months <br /> period.
d.
"12 hour1.388889e-4 days <br />0.00333 hours <br />1.984127e-5 weeks <br />4.566e-6 months <br /> comosite sanele" consists of 12 ef fluent portions collected no closer together than one hour and compcsited according to flow.
The daily sanyting intervals shalt include the highest flow
- periods, e.
"6 hour6.944444e-5 days <br />0.00167 hours <br />9.920635e-6 weeks <br />2.283e-6 months <br /> concosite samote" consists of six ef fluent portions cettected no closer together than one hour (with the first portion collected no earlier than d
10:00 a.m.) and composited according to flow.
f.
"3 hour3.472222e-5 days <br />8.333333e-4 hours <br />4.960317e-6 weeks <br />1.1415e-6 months <br /> composite sancte" consist nf three ef fluent porttons collected no closer together than one hour (with the first portion collected no earlier than 10:00 a.m.) and conposited according to flow, i
1 a
e f
l i
. ~. _
John Hall. Chestmen Pam Reed. Commass***
(.
1 i
.....,s C,mam.
Dan Pearson W h TEXAS NATURAL RESOURCE CONSERVATION COMMISSION l
Jal.y 11, 1995 4
Texas Utilities Electric Company Attn: Timothy T Shea, Coordinator Er. orgy Plaza, 1601 Bryant Street Dallas, Texas 75201-3411 RE: TEXAS UTILITIES ELECTRIC COMPANY RENEWAL; Pomit 01854
n c ed is a copy of:
(
a Permit for a wastewater treatment facility issued pursuant to Chapter 26 of the Texas Water Code.
In order that you may comply with monitoring requirements for your waste discharge
- permit, self-reporting foms and instructions will be forwarded to you from the Watershed Management Division.
Please discontinue the use of any old self-reporting forms that you may have and wait to fill out forms until you receive new ones from the TNRCC which reflect your new monitoring requirements.
For further information, please contact Mary Taylor at (512) 239-4570.
When your f acility is placed in operation or goes into a new phase, please use the attached " Report of Progress of Construction of Wastewater Treatment Facilities" form.
This form will advise this agency and our region office of the completion or placement in operation of proposed facilities in accordance with the special provision incorporated into the po sit.
( ) a Permit for a hazardous or solid waste facility issued pursuant to Art. 4477-7, Texas Revised Civil Statutes. your attention is directed to Commission Rule 335.5 which may be applicable to your facility.
)
( ) a Permit for a waste disposal well or an injection well issued pursuant to Chapter j
27 of the Texas Water Code.
In accordance with the Texas Water Code, you must file a j
copy of the permit with the city and county health authorities.
( ) a Permit for a municipal solid waste facility issued pursuant to Chapter 361, Texas i
Health and Safety Code.
The Site Development Plan, the Site Operating Plan, and all other documents and plans prepared and submitted to support the permit application shall
{
be considered as a part of this permit and shall be considered as operational requirements of this permit.
I
( ) a Radioactive Material License issued pursuant to 30 Texas Administrative Code, I
Chapter 336.
Sincerely, Gloria A. Vasquez, Chie lerk GAV:de cc:
INRCC Region 4
)
P.O. Bos 13087 Austin, Temas 787113087 512/239 1000
+
,== ===== s==.se emas m
The Naturai Resource conservation Conssission Attns Enforcement Support Unit, Watershed Management REPORT OF PROGRESS OF CONSTRUCTION 0F WASTEWATER. TREATMENT FACILITIES I
Today's Date 1
j l
Wo
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Name of Permittee Permit No.
Responsible Officials l
Name i
i Title i
)
Phone Number t
Facilities are operational /are estimated to be ope
- Alonsi I
e Date (month / day / year) i The volume and phase in operation (Interim /Finai)
(million gallons per day)
I j
operator of this facility will be
[
Name 1
Class of Certificate social Security Number Employed by (if applicable (Name of Operations Company) l Signature -
i TNRCC Enforcement Support Unit / Watershed Management /F.O. Box 13047/ Austin, Texas 78711-3087/ Area code 512 239-4570 i
J i
TEXAS NATURAL RESOURCE CONARVATION C P 0. Box 13087
- Austin. Tesas 18111 3087 *.512/239 2000 M REGIONAL OFFICES 2 Lubbock 4630 50th St.. Suite 600. Lubbock. TX 79414 3600 i
8044 96 7092 FAX. 80&794 7107 bgional Manager Jim Estee 3 AMiene 200 South Dennile. Suite 2005. Abilene. M 79006 915/698 9674 FAX.: 915/892 5400 bpenal Manager. Winona Henry 4 Aril..,"ca tell C Bewte Blvd., Bu6te 313 1010 N. Dunsaantle Rd, 1
817332 5531 FAX: 817n32 0178 Fort W TK19114 Dunenaville, TX 78118 2201 byenal Manapr Melvin Lewis 817#334 481 FAI: 817#38 0178 21&3084171 FAX: 214nos.1181 j
407 M ~C E k ~Suate 5,~
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E -- - -/.t. TX 7811s 21&BSB-3700 FAX: 214nos 11st S. Tyler 1304 South Vlas Aee.
11400 Wwy. 64 East i
902546 Oe78 FAX; 90M649216 ler.TK 78701 BL 14. See 264 Tyler. TX 78707 beenal Manager.1eroy Biggers 2889 FAX: 904/5861888 S W,76 FA;X. 903/548 9jt e_
i 2918 Tempus, Tyler. TX 78701
- f "" 2 ^^ FAX:903/583 2643 S.El Pane 7500 Vlassunt Blvd., Suite 147. El Feen.1% 79025 i
915478 9634 FAX: 918578 4479 bgional Manspr Hester Vi!!a 7 Odense 2626 J B. Shep9 erd Pkwy. Blvd.,31ds. 5101. Odesse. T179701 91F3834997 FAX; 915/342-4817 Repenal Manager. Charley Sime 8-Sam ? C-!e 301 W. Beaurgard Ave. Suite 203. San Amenis. 7178008 J
91M88-8479 rAX: 918/6844431 betonal Manager John Haseenase 9 Wees 6801 Saner Ave.. Suite 2500. Waee. TX 78710 7807 i
8173510335 FAX: 817372 9241 3
baional Manser Gene Fultee 10 Beaumost 3870 Eastas Twy, Suite 110. Beau-a TX 777081830 40&'994-3838 FAX. 400/092 2119 bgional Manager. Vic Fair 11 Austia l
1700 S. Lamar Blvd., Bldg.1. No.101, Assete.71787044300 2
512/443 7803 FAX; 512/4474828 betenal Mand'ger Larry Semith
~
12 Houstos 4150 Weatheimer. Houseen. TX 77037-4417 713/625 7900 FAX; 71HIS 7987 bgional Manager Allen Forker i
13 San Aatomie 140 Heimer Rd. Suite 300, Sea Assenie. TX 70233 804f 210/490-3094 FA.t 210/548-4326 Regional Manager Richard Gama 14 Corpus Christi 5118el 8484 FA1512/8512644 1231 Agnes St., Suite 108 4410 Dillen 1.n.. Suite 47 brional Manager. Buddy Stanley Corpus Chatsel. TX 78401 Corpus Chrtata. TX 78415 5328 51 MAS 4838 FAX: 813/083 7384 812/0814444 FAX, 512 8512666 15 Harlingen Mats Sids., Beans 204 813 East Pike Blvd.
1 21 M 64 3165 fat 21H691315 513 East Jaskeen Westese, TX 78594 4935 bgional Manapr Tony France Harti TK 78680 21 H 08 3148 FAX, 210 9691315 210/4 le FAX: 210/413-8000 TNRCC Laboratory 5144 E. Sam Houston Phwy N. Housten, TX 77018 713/457 5229 FA.t 711457 9107 lah Menspr Jim Busceme GI 2 5/95
i
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TNRCC REGIONS l
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1 Amarillo 2
Lubbock jg-
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Abilene l
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5 Tyler i
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El Paso 7
' Odessa 8
San Angelo
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9 Waco i
10 Beaumont 11 Austin j
12 Houston j
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San Antonio 14 Corpus Christi
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15 Harlingen 0 *'** a re **' * *' ' m * * **
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57)
I PERMIT NO. gigig j
(corresponds to NPOES PERMIT NO. 7X0065854) 4 i
TEXAS NATURA1. RESOURCE CONSERVATION COMMISSION This permit is a renewal P. O. Box 13087 of Permit No. 01854 l
Austin, Texas 78711-3087 approved November 14, 1989 1
PERMIT TO DISPOSE OF WASTES under provisions of Chapter 26 j
of the Texas Water Code l
Texas Utilities Electric Company l
whose mailing address is Energy Plaza i
1601 Bryant Street
]
Dallas, Texas 75201-3411 1
is authorized to treat and dispose of wastes from the Comanche Peak Steam Electric
{
Station. (SIC 4911) i i
located on the west side of the Squaw Creek Reservoir along Hwy 56 approximately four j
and one half miles (4.5) northwest of the City of Glen Rose, Somervell County, Texas.
effluent is discharged from the plant into Squaw Creek Reservoir; thence to Squaw i
Creek; thence to the Paluxy River in Segment No.1229 of the Brazos River Basin; or
'to Squaw Creek Reservoir, thence to Lake Granbury in Segment No.1205 of the Brazos i
River Basin.
4 l
only in accordance with effluent limitations, monitoring requirements and other i
conditions set forth herein, as well as the rules of the Texas Natural Resource Conservation Commission (" Commission"), the laws of the State of Texas, and other orders of the Commission. The issuance of this permit does not grant to the permittee the right to use private or public property for conveyance of wastewater along the i
j herein described discharge route. This includes property belonging to but not limited to any individual, partnership, corporation or other entity. Neither does this permit i
j authorize any invasion of personal rights nor any violation of federal, state, or local laws or regulations.
It is the responsibility of the permittee to acquire property rights as may be necessary to use the herein described discharge route.
1 1
This permit and the authorization contained herein shall expire at midnight, five years a..fter the date of Commission approval.
3
]
ISSUED DATE: M 0 3 19 M AI -
ATTEST-n =
j For t 1ssio i
EFFLUENT LIMITAllGNS A M IENITORING REQUIREMENTS Outfall Mrist 001 (Previously Outfall 201)
I 1.
During the period beginning upon date of issuance and lasting through date of expiration, the permittee is authorized to discharge once-through and auxiliary coollag water and previously monitored effluents (*5) subject to the following effluent limitations:
The daily average flew of effluent shall not exceed 3168 alliton gallons per day (MGD). The total volume discharged during any 24-hour period shall not exceed 3168 alliton gallons.
Effluent Characteristk Dischwoe Limitatinas Nial-Self-Monitorine Reauira==ats i
Daily Avg Daily Max Single Grab Report Daily Avg. & Daily Max.
Ibs/ day (ag/1)
Ibs/ day (ag/1) og/I Measurement Frequency Sample Type Flow (MGD)
(Report)
(Report)
N/A Continuous (*2)
Record Temperature
- F (*l)
N/A (ll3*F)
N/A (ll6*F)
Il6*F Continuous Record Free Available j
Chlorine (*3) 440 (0.2) 1101 (0.5) 0.5 1/ week (*4)
Grab i
Total Residual l
Chlorine (*3)
(Report) 880 (0.2) 0.2 1/ week (*4)
Grab
(*l) See Other Requirements, No. 4.
(*2) Flew rates shall be obtained from pump curve. data.
(*3) See Other Requirements, No. 5.
~
(*4) Samples shall he representative of periods of chlorination.
(*5) Efnuent prevleusly monitored at Outfall 004 may be discharged through Outfall 001.
3.
.There shall be no discharge of floating solids or visible foam in other than trace amounts and no discharge of visible oil.
l 4.
Effluent monitoring samples shall be taken at the following location (s): At Outfall 001, where once-through coeling water and previously, monitored effluents (*5) are discharged from the discharge canal to Squaw Creek l
Reservoir.
f L
Dmo ? nf Parmit Nn alR54 y..,
see 616 e ioc F l oc e, 6,-
s......,
1 1
EfflufMI LIMITATIONS AIE) MINITORING REQUIREMENTS Outfall " :rts1 002 (Previously Outfall 501) 1.
During the period beginning upon date of issuance and lasting through date of expiration, the permittee is authorized to discharge Safe Shutdown impoundment (SSI) containing coollag water, low-volume wastes (*2)
(servicewater)andsteruuaterrunoffsubjecttothefollowingeffluentIlmitations:
Effi - t rh wacteristic Discharee Limitatlaat Mini-Sel f-Moni torine ".:: le---- -- t s l
Daily Avg Daily Max Single Grab Report Daily Avg. & Daily h x.
l mg/l ag/l mg/l Measurement frequency Sample Type Flow (MGD)
(Report)
(Report)
N/A I/ day (*l)
Estimate Total Suspended Solids 30 100 100 1/ week (*I)
Grab l
011 and Grease 15 20 20 1/ week (al)
Grab
(*l) h en discharge occurs.
(*2) See Other Requirements No. 3.
t 2.
The pH shall not be less than 6.0 standard units nor greater than 9.0 standard units and shall be monitored I/ week (*l) by grab sample.
3.
There shall be ne discharge of floating solids or visible foam in other than trace amounts and no discharge of visible ell.
l 4.
Efflet monitoring samples shall be taken at the following location (s):
At Outta11 002, where (SSI) effluents are discharged to Squaw Creek Reservoir.
l
l I
i f
t EFFliKMT LIMITAlinaK M NOMIIGRIIIC REGUIRDIENTS Outfall M rfs1 003 i
(Previously Outfall 301) l 1.
During the period beginning upon date of issuance and lasting through date of expiration, the permittee is authorized to discharge sanitary sewage affluents subject to the felleulag effluent Ilmitations:
i Eff1---t rk -acteristic Discharon Limitatiame i
l Mini-- Self-honitorine trir
--ts Sally Avg Daily Max Single Grab Report Daily Avg. & Daily Max.
og/l ap/1 ag/l Measurement frequency Sample Type l
l Fleu (850)
(Deport)
(Report)
N/A 1/ day Estimate i
Blechemical Oxygen l
Demand (5-day) to 45 45 2/ month Grab i
Total Suspended selles 20 45 45 2/ month Grab I
~
2.
The pH shall not be less than 6.0 standard units nor greater than 9.0 standard units and shall be monitored !
l 2/ month by grab sample.
3.
There shall be no discharge of floating solids or visible foam la ether than trace amounts and no discharge of visible ell.
1 4.
Effluent monitoring samples shall be taken at the folleulag location (s):
sewage affluents are dicchaW from the sewage treatment plant prior to Squaw Creek Reservelr.At Outfall 003 I
i i
I l
i l
i Page 2b of Permit No. 01854 T-
" ' ' ' ' ' ' ~
-- - ~ --
l EFFLUENT LIMITATIONS Als fENITORING REQUIREMENTS Outfall % rts) 004 (Previously Outfall 101) i 1.
During the period beginning upon date of issuance and lasting through date of expiration, the permittee is j
authorized to discharge law-volume wastewater (*l) and previously monitored effluents subject to the following eff1 gest llettattens:
1 i
Effluent Characteristic Dise h eae Limitatless Mlai-Sel f-Monitorina
"----1.
-ts Daily Avg Daily Max Single Grab Report Daily Avg. & Daily Max.
ap/1 ag/l ag/l Measurement Frequency Sample Type Flow (NED)
(Report)
(Report)
N/A I/ day (*2)
Estimate Total Suspended Se11ds 30 100 100 1/ week (*2)
Grab (*3) 011 and Grease 15 20 20 1/ week (*2)
Grab (*3) i
(*l) See Other Requirements. No. 3.
(*2) When discharge occurs.
(*3) Since more than one source may be associated with this particular waste category, grab samples from each source may be either physically combined into a single flew weighted sample for analysis and reporting or individually analyzed and the results mathematically cambined late a single flew weighted result for reporting.
j 2.
The pH shall not be less than 6.0 standard units nor greater than g.0 standard units and shall be monitored 1/ week (*2) by grab (*3) sample.
i 3.
There shall be no discharge of floating solids or visible foam in other than trace amounts and no discharge of visible oli.
t 4.
Effluent monitoring samples shall be taken at the following location (s): At Outfall 004, where low-volume l
wastewater and previously monitored effluents are discharged prior to mixing with the once-through cooling 1
water and/or Squaw Creek Reservoir.
(
I i
pana 7e n f parasi t Nn OIREA f.vac Istilitiac Floreric ra-nanu
L EFFLUENT LIMIIATIONS AIE) MMilIGRIME REGulREMENTS Outfall % ris) 005 (Prevleusly Outfall 001) 1.
During the period beginning upon date of issuance and lasting through date of expiration, the permittee is authorized to discharge waters contained in Squam Creek Reservetr subject to the following effluent Ilmitattens:
i i
Effluent Characteristic Disch wee Limitatlant Hjalaus Self-Monitorlag Requiremerg
~
Bally Avg Daily Max Single Grab Report Daily Avg. & Daily Man as/1 mg/l ag/l Measurement frequency Sagle Inw Flow (NED)
(Deport)
(Report)
N/A I/ day (*2)(*3)
Estimate i
Temperature "F (*I) n/A 93*F 93*F 1/ day (*3)
Grab Total Dissolved Solids (Report) 4000 4000 t/menth(*3)
Grab
(*l) See Other Requirements No. 4.
(*2) Flow rates shall be obtained from pump curve data.
(*3) lAnn Discharging.
3.
There shall be ne discharge of floating solids or visible foam in other than trace amounts and no discharge of visible etl.
4.
Effluent monitoring samples shall be taken at the following locatten(s): At Outfall 005, located at Squaw Creek Reservetr Dam, prior to discharge to Lake Granbury.
t i
l l
I i
N2np 7tf nf Permit h 01854 Tewas lit il i t ies Flert e in-f m any
)
EffLMENT LIMIIAllGN5_AE MNIIGRIE REQUIREFidS Outfall " " :r(si 104 (Previously Outfall 601) 1.
During the period beginning upon date of issuance and lasting through date of expiration, the permittee is authorized to discharge latermittent discharge of metal cleaning (*l) wastes subject to the following effluent 11altqtless:
4 f
Eff1 - t rh wacteristic Discharoe Limitations Nialmum Self-Monitorina Reauir-ts Daily Avg Bally Max Single Grab Report Daily Avg. & Daily Max.
og/l ag/l ag/l Measurement Frequency Sample Type Flow (MGD)
(Report)
(Report)
N/A 1/ day (*2)
Estimate Iron, Total 1.0 1.0 1.0 1/ meek (*2)
Grab Copper, Total 0.5 1.0 1.0 1/ meek (*2)
Grab l
(*l) See Other Requirements, No. 2.
l
(*2) Nhen discharge occurs.
l l
2.
The pH, total suspended solids, and oli and grease limits shall apply at Outfall 004 and shall be monitored j
at Outfall 004, by grab sample (*2).
There shall be no discharge of floating solids or visible foam in other than trace amounts and no discharge i
l 3.
of visible eil.
i 4.
Effluent monitoring samples shall be taken at the following location (s): At Outfall 104, where metal cleaning wastes are discharged from the retention ponds or temporary treatment facilities prior to mixing with low-volume waste stream prior to discharge through Outfall 004.
I l
Page 2e of Permit No. 01854 Texas ut ilit ies Ilert ric r.unn nv
i creiNiTIONS ANO sTANC AMO SECMIT CONDiff 0NS Ae recusred by Title 30 Teses Admmistrative Code ITACl Chaoter 305, certen regulatione espear as standed conditions in weste disenerge permite. 30 TAC ll308.121305.129. Sutchester 7,
- permit Characteristico end Conditions' as promulgated under the Teses Water Code, lit.103 and S.105, and 19341.017 and 361.024fel of the Tenee Solid Weste Dieposei Act estechen the chorectoristice and standarde for weste discharge permite, mcluding eewege eludge. The following test mcludes these i
conditione and mcorporates them mte thee permet. All defmitione contained m Section 26.001 of the Tense Wetw Cade chest emply to tnis permit and are mcorperated herein ty reference. Additional defmitions of words or phresee used m thee permit are se fouows:
- 1. Flow Measuremente Deily everage flow the enthmetic everage of oil determ.nettone of the dely discharge withm g penod of one calender e.
j month. The daily everage flow determmeteen ohell coneset of determmetione made on et leset feur seeerste deve. It metenteneous meeevremente are used te determene the dely discharge, the determmetion eheit be the enthmetic j
everage of oilinstantaneous meceutemente taken dunng that month. Daly everage flow determmetion for mtermittent discharges eheil coneset of a mmemum of three flow determmetone on days of descherge.
b.
Instantaneous flow. the measured flow dunng the menemum time required to interpret the flow measunne device.
l c.
2.hout peak (domestic westowetwr treetment plantel. the memimum flow sustaned for a two-hour penod durmg the
^
pened of dely discharge. Multele measuremente of instantaneous menemum flow withm a two-hour pened may be compared to the permetted 2-hour peak flow.
l d.
Deily memimum flow the highest total flow for any 24-hour pened in a calender nionth.
- 2. Concentration Measuremente i
s.
Deely evecoge concentrecon the enthmecc everage of eli effluent semples, compoete or greb es required by this permit withm a pened of one calender month, conostag of et least four esserete representsteve mesouremente. When four i
earnples are not evelette m a calender month, the erithmetic everage of the four moet recent measurerrients or the orithmetic everego (W*ghted by flowl of oil values taken dunne the month shall be unlized as the dely everage concentration.
i b.
7 day everage concentraton the entNeotic evwege of oil offluent templee, composite or greb, within a penod of one calender week, Sunday through Saturday, consistme of et least three seperate measuremente.
c.
Dealv mezamum concentremon. the monsmum concentration measured on a omgle day, by composite esmole, unlese otherwise specified elsewhere m this permat.
i i
i d.
Fecel Caliform bactone a the number of colonies per 100 millilitere effluent.
J
- 3. Sample Type e.
Composite semple a semple made up of a mmimum of three offluent pornone collected in a continuous 24-hour sened i
or dunne the pened of dedy descharge of less then 24 heure, and cembened m volumes proportional to flow collected l
no closer then two hours for demeette sewage. For induetnel westoweter a composite semple is e samo6e mece up of a mmemum of three effluent persone collected in a cononuove 24-hour pened or durmg the pened of daily discherge j
il less than 24 heure, and eembened in volurnee proporconal to flow codested no cleoet then one hour, j
b.
Greb semple en indevedual esmple cellected in less then 18 minutes.
}
4.
Treatment Focality ifesiety).westoweeer feestities used in the conveyance, storage, treatment, recycling, reclamation end/or disposal of domeone sewege, endustrial westee, eencultural westes, recreatonal westee, or other westes meludmg sluogo i
handling or deepessi Seeigdes under the junodection of the Commeseson.
l S. The twm 'sowege eludge' is defined as solid, semi solid, or liquid residue generated dunne the treetment of domestic eewege m 30 TAC Chapter 312. Thisincludes the solide separated from westoweter by unit proceeeen which have not eeen closeafied es heaerdous weste.
4 i
MONITORING AND REPORTING REQUlflEMENTS a
- 1. Self-Reportmg Monitormg reeutte shall be proveded et the interveis specified in the pomwt, Unless otherwise specified m tNs permit y
or otherwies ordered by the Commessen, the pomuttee shall conduct offluent sempions and reportmg in aceoroanc e with i
30 TAC 5 9319.4 319.12. Uniees otherwise specified, e monthly offluent report eheit be submitted eacn montn by the 20th day of the followeg month for each discharge whech is desenbed by thee permet whether or not a d senerge 3
is medd for that anonth.
Page 3 NCO 9 94 i
1 a
As geswidse by State Ltw. tne a:rmittse se subsect to administrative, cavit and enmines sinsaties, ce gooncegie, e ar negngently er keswingly vicisting tns Cisen Water Act, the Temec Wcter Code. Chesters 2g. 27, one 23. eed fease
{
Hee 4tn and Safety Code. Cnester 3gt,includmg out not limited to knowmeiy eneking any fasse staternent on any report or documeet, fe6mfyme, tempenne w'th or know* gly rendermg meccurate any monotonng device or metnoe reevered i
[
by this permit or vietetmg any other requirement eposed by state or federei regulations.
t
- 2. Test Procedures Uniees otherwise epocified in this permit, test procedures for the snelysis of pollutante shall comply with procedures i
j specified in 30 TAC 51319.11 319.12. Mesourements, teste and ceiculatione eheel be occurately accomotioned m e,e.,eeeeist,ve, nonne,.
- 3. Records of Asewits I
s.
Momtonng sempl*e and measuremente shall be taken et teos and m o menner se se to be representetsve of the monitored actevity.
b.
Except for recorde of menitonne mformation reeuered by this permit reisted to the permittee's sewage eludge use and disposal activities, which shall be retened for a pened of et least five years lot longer se roguered by A0 CFR Port 503),
monotonng and reportmg records, including etne charte and records of celebrecen and memtenance, copies of all recorde 4
i reewired by this permet. and the cornfication recuered by 40 Code of Federal Regulemene 1284.73(bHS) sh861 be retamed et the fesility este and/or eheit be readily evolebie for review by e TNRCC representeeve for a pened of three years from the date of the record or semple, measurement, report or cornficatsen. This pened may be extended et the request of the Executive Derestor.
l j
c.
Records of monitonne ectmties shallinclude the following:
i i.
date, time and place of semple or.mn; c.t:
si.
identity of indevedual wise seinested the semple er made the measurement.
- sei, date and time of enely.sse:
l iv.
identity of the meividual and laboretery who performed the enseyme, v.
the technogue er mothed of analyese: and i
vi.
the resulte of the ent'ytse or measurement and quality escurence/gueisty centrol records.
e i
The pened dunne wheeh records are required to be kept shall be autemeses#y eatended to and through the final I
dispoestion of any admmestroevo er fudessel enforcement accen that maybe enetstuted egemet the permittee.
I i
4 Additional Monitonne by Permittee
]
if the permittee monstere any peilutant et the loestioniel doessneted hereen more frecuently then reewired by tNo permit j
uomg approved anelvecal metnode se specified above, all results of such menetonne shall be included m the ceiculation j
and raporang of the values submetted on the required monthly effluent report. Increened frequency of semphng small j
be moscated on the monthly effluent report.
- 5. Calibration of instrumente i
All autorasec flow measuring endler recording devices and/or toteliamg meters required by the permit for measunng i
permit hmited flowe shall be escurately celibrated by a tresned person et plant start up and se often thereafter es j
necessary to oneure escuresy, but not less often than annually uneens authenaeJ by the Executsve Director for a longer penod. Such pereen ohell venfy in writme that the device is opereeng properh and giving escurate results. Cocios of the vsnfication shall be kept et me sient este for et least three years, i
j
- 6. Comp 4sence Schedule Asperes j
Reporte of esmodense er noneemphonee with, or any progrees reports on, intenrn and final requiremente contained m any comphanes enhedule of me permet shall be submitted no later then 14 deve followmg each schedule cate to the j
opproenese W OfAse and me Watershed Management Oiveesen enforcement staff.
4
- 7. Noncomplienee NedAreden j
e.
Un:ees specified otherwies, any noncompeeence which may endanger human health or oefety, or the environment snell i
be reported to the TNRCC Report of such mformatsen shed be provided etapy or by fecennele trenomission J Axl to the Rogsonal Office withen 24 hours2.777778e-4 days <br />0.00667 hours <br />3.968254e-5 weeks <br />9.132e-6 months <br /> of beoemme owere of the noneempioenee. A wntten submission of such j
mformation ohell else be provedad to the Regional Office and to the Enferoament Seetsen of the Watershed Menegement Daviesen within five wertung deve of -
--w swere of the noneempliense. The wntten submeseson eheit contem a a
deocneteen of the noneemphones and its cause; the setonnel danger to human heetth or eefety, or the encronment:
i the pened of noneemphanes, meludmg esect dates and twnes; if the noneemphence hee not been corrected, tre enticipated twee et is espested to sentmue; and steps taken er pienned to redues, ehmenete, and prevent recurrence j
of the noncomphence, and to meegets ste adverse effects.
t
)
j b.
Unauthcased diocharges as defined in Permet Condition 2(g) of thee pomut shed be reported under Part a e tme i
noncompliance notiheetion proviesen.
Page 4
%a:: 3 34
i 4
Nstwithetendmg any of the aosv3. cny efflu:nt vicistian wnich dzvictco from the p2rmitted affluent limitation ny more e
c.
then 40% ensal be reponed en writmg to the Regiones Office and the Enforcement Section of the Watersnee Menegem*nt O'wiesen within S woreimg days of becoming swore of the noncomphence.
d, Any noncompliance other then that specified m thee section, or any required information not submitted or e6bmitted incorrectly, shall be reported to the Enforcement Section of the Watershed Management Divie.on se oro,n,t:y se possible. Thee roguerernent me4me to report these types of noncorenhence on the monthly seif report form,
- 8. Signatories to Reporte i
i k
All reporte end other information requested by the Enocutsve Director eheit be signed by the person end m the menner required by 30 TAC 5305.128 tretetmg to Signatories to Reportel.
PfeMst QCNDificNS l
- 1. General d
(
e.
When the permittee becomes owere that it feled to submet any resevent facte en a permit sophcotion or submitted I
mcorrect mformation in en apphcotson or m any report to the Emeoutive Director, at shall prornptly submit such f acts or i
mformeton, j
b.
Th;e permit is granted on the bases of the information supphed and representatene made by the permittee durmo the epphcenon precoes, relymg upon the accuracy and completenees of that mfermeeon and those representations. After notice and opportunity for a heenne, this permit may be modsfied, suspended, or revoked, en whole or in part m accordance with 30 TAC 305.81 305.82. dunne sta term for cause including but not limitod to, the followmg:
i.
Violation of any terme or conditions of thee permit:
ii.
Obtenmg this permet by mierepresentation er falute to diestees fully eel relevant facts: or iii.
A change in any condeten that requeres either a temporary or permanent reducson or elimmecon of the authensed descharge.
I c.
The permittee shall furmeh to the Esecuteve Director, upon regaseet and wethen a ressenable time, any informetwa to j
determee whether ceues essete for amendme, reve6ung, suomending er termenceng the permet. The poemittee shall eine j
fumish to the Esecutve Detector, upon roguest, copese of records roguered by the permet.
i
{
- 2. Compliance 1
2 e.
Acceptance of the permet by the pereen to whom at is issued constitutes ooknowledgement and agreement that such
}
person will comply with all the terme and condetoone omhedoed in the pomut, and the rulee and other orders of the Commieeson.
b.
The permittee hee e duty to comply with all conditions of the permet. Failure to comely with any permit condition l
constitutes a violation of the permet and the Teses Water Code or the Teses Solid Weste Disposal Act, and is grounde l
for enforcement action, for permet amendment, revocenen er euepenoson, or for denial of a permit renewel appbcation l
or of en oppieceton for a permet for another facihty.
c.
It shell not be e defenes for a permettee in en enforcement acten that it would have been necessary to helt or reduce l
the permitted acavity a order to memtem comphence with the conditene of the permet.
l d.
The permittee shall tehe es reemenable stese to mmemsas er prevent any deoeherge or eludge use or disposal or other permit veo6eten whosh has a reasonable hkelihood of adversely affeeeng human health or the environment.
e.
Authonaselon hem Wie Commessenis required before beginning any change in the permitted facehty or activity that may result en noneempEenes with any pomut requirements.
f.
A pomwt may be amended, suspended and reescued or revoked for cause. The filing of a roguest by the permittee for j
e permet amenenent, suspenesen and reseevance, or termeneteen, or a notificamen of planned changes or enticipated noncompioenee, dose not etsy any permet condition, i
g.
There shall be no unauthonaed discharge of westoweter er any other weste. Per the purpeee of this cormet, en unauthertred discharge se sencodered to be any discharge of westoweter into or edgesent to waters in the state et any location not permetted as en outfall er otherwies defined in the Other " L. ;;te of thee pommt.
h.
A temporary diversen of westoweter ereund a unit er unite to e pomwtted outfall for the purposes of meintenance or reper is not a vesisten of thee pommt as long as the westoweter semposes with all other stenderde, terme and conditione of thee pomwt Neece shed be provided to the Regional Office et least 24 hours2.777778e-4 days <br />0.00667 hours <br />3.968254e-5 weeks <br />9.132e-6 months <br /> in advense of any temporary dwersion, where practical. Where pner notese for a temporary deverosen se not presseel, netsee shall be provided to the I
a gional e
Office se seen ao poemb6e but et least withm 24 hours2.777778e-4 days <br />0.00667 hours <br />3.968254e-5 weeks <br />9.132e-6 months <br /> after boomning the temporary dnrerosen. Not withstano'eg any j
of the above, the C- ^^ ;may roguere that en opphcotoon be submetted for formal authenaation.
I Fege $
I *. 7 3 94
- 3. Ine:ectians and Entry Inspection and entry sheH be snowed as preecribed in the Teses Water Code, Chaetore 23, 27, and 23, and T"**
e.
Heeith and Safety Code, Chapter 331 l
b.
The members of the Commission end employees and egente of the Cor.wniscion ero enntled to enter any public or onvete property at any reasonable time for the purpose of inspectsng and investsgeting con 6tsone reieting to the quehty of water in the state. Members, employooe, or egente acting under this authenty wno enter pnvete property oned I
observe the estableshenent's rules and regulatione concerning eefety, intemel secunty, and fire protection, and if the
- property hee management en reesdence, shell.setafy management of the person then in charge of his or her presence end eneel exhibit proper credentie6e. If any member, emp6 eyes, or egent se refused the nght to enter en or on puti.c or pnvete property under this authenty, the Esecutsve Director may invoke the remedies authonaed in Tesee Water Code j
Section 26.123.
t 4.
Permit AmonJmont The permettee ehen geve notice to the Emeouave Dweeter enor to physicei alterenene or ed6 cone to the permitted f acility s.
I if such a6terstone or ed6tione would toeuwe a pomut amendment er result in a violenen of permit requiremente.
i b.
Pnor to any fesility mo6fications, addeens and/or empenesene of a permetted feestity that willineroese the plant cacocity l
beyond the permetted flow, the permittee must apply for and obtern proper authenascon from the Commission before
)
commencing construccon.
The permittee must apply for en amendment or renewal at least ISO deve ener to easiration of the existing permit in c.
order to continue e permetted estvity after the emperaten este of the permet Authensation to contnue such ecovity 4
win terminate upon use effecDve densel of easd applicacon.
I d.
Pnor to accepeng westee wheeh are not desenbod in the permit applicanon or whech would result in a significant change in the cuenety or euelity of the essoting 6echarge, the sermettee must report the proposed changes to the Commese on I
The permettee must app 6y for a permet amendment reflectng any neconeery changes in permet con 6tsons, including j
offluent limatseens for pollutante not idenefied and lemsted by this permst.
J l
e.
Tenee Water Code 92g.026tbl After a public heenne, notee of which shaN be given to the permittee, the Commission mey require the permettee, from time to twne, for good cause, to eenform to new or addit #onal conditions. The Cw1 : m shall allow the permittee a reasonable ame to conform to the new or ed6 conal conditions, and on j
esplacecon of the permittee, the Commseenen may grant ad6tional twne.
- 5. Permit Trenefer 1
e.
Pnor to any trenefer of this permet, C.... -t approval must be obtained. The C i_. :_ a ehen be notified. in 1
wnting, of any change,n centrol er ownershe of facilsties authensed by this permet. Such notification should be sont to the Permet Applicecon Team in the Watershed Management Diviesen.
b.
A permit may be treneferred only according to the provisions of 30 TAC 6305.64 troletng to Trenefer of Permits) and 30 TAC 305.97 troleeng to Acton on Application for Treneferi.
- 6. Relationship to Henardous Weste Activrees This permit does not authenes any estrvety of heaerdous weste or eclid waste storage, processing or disposet which I
reoutres e permet or other authenacDon pursuant to the Tomas Health and Safety Code.
d
- 7. Relationship to Water Reghts Disposed of treated effluent by any meene other than discharge directly to the waters in the state must es scocificeily authonaed in $is pomwt and may roguere a permit pursuant to Chapter 11 of the Tenee Weter Code.
- 8. Property Righte
]
A permet dose not eenvoy any presorty nghts of any sort, or any one6uerve privilege.
I
- 9. Permit Enforceability The condetsons of thee pomwt are severable, and if any provieien of this permit, or the applicaten of any orne.on of this permet to any circumetenses, is he6d enveied, the appissenen of such provienen to other cwcumetences sea tne j
remainder of thee permet, shall not be effected thereby.
1 1
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Page 6
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CRE3 A TION A L n ECUI'l'MU i
- 1. The permittee snell et all times ensure that the f acihty and oilits systerne of collecten, treatment. and disposet are properi, operated. This meludes the regular, penodic enemmation of westewater ochde within the treatment plant ey the operator J
in order to memten en appropnete gueritity and Quakty of sohde mventory es described m the venous operator trening manuele and eccording to accepted mdustry etenderde for process control such as the Commismon's
- Recommendations for Minimum Procese Control Teste for Domeet c Westeweter Treatment Feedities." Procese control recorde ones e.
rete.ned et the facdsty site and/or shell be road.ly eveeleele for review by a TNACC represenvetsve for e poned of three years.
- 2. Upon request of the Executive Director. the permittee shall take apprennete semples and provide proper enelysse m order i
to comonstrate comphence with Commiston rules. Uniose otherweee specified m thee permet or otherwies ordered by the Commiscon. tne permittee shell comoty with oil provie one of 30 TAC 5 312.1 9 312.13 concommg eewege elvdge use end disposes and ll319.21 319.29 concernmg the discharge of certain heaerdous enete6e.
1
- 3. Comoebc weetowater treatment facdoties sheH comply with the followmg previoeone:
l The permittee eheti notify the Esecutive Director in care of the Permittmg Section, Watershed Management Division.
e.
]
m wntmg of any closure activity or feedsty expenson et least 90 doye pnor to conductmg such activity.
j b.
Closure estivities include those secociated with any pet, tank, pond, lagoon, or surface irnpoundment regulated by this permit.
)
i I
c.
As part of the notification, the permettee she64 submit to the Municipal Permite Team in Austm, e closure plan which has been developed in accordance with the ' Closure Guidance Documente* evalette through Record System Services for the Office of Weste Management & Polluton Cloenue.
4.
The permettee is responeeble for motelling enor to plant etert up, and subsequently mentening, odeevote esfoguarde to I
l prevent the discharge of untreeted or enedeguate6y treeted westes dunne eteetneel power falures by meene of attemete i
power sources, etendby generatore, and/or retencon of ittedeouete6y treeted weetoweter.
- 5. Unless otherwnee specified. the permittee shall provide e readily accessible semp6ing poet and, where soplicable, en effluent j
flow meeounng devees or other acceptable meene by which effluent flow may be determmed.
i
- 6. The owmittee shall remit en ennual weste troevnent fee to the Commission es reevered by 30 TAC 305 (Subchester Mi and i
en annual water evality eseeeement fee to the Commiseson as roguered by 30 TAC 320. Falure to pey other fee may reewit m revocanon of thee permst.
- 7. Documentecon f
For all wntten notifications to the Commismon roeuired of the permittee by this permit, the permittee shall lieep and make evoleblo e copy of each such nonficecon, upon the same beme se self monotonng date are required to be kept l
end made evaletee.
l
- 8. Facilities which generato domestic westoweter shall comply with these previesone; domestic westoweter treatment f acihties et permitted industrial estes are excluded.
l e.
Whenever flow measuremente for any domestic sewege treatment facsiity reach 75 percent of the permitted everage dedy flow for three coseecucve months. the permittee must inetnote engmeenne and financist plannmg for i
expenmon and/or upgredmg of the domeetse westoweter treatment and/or collection facdities. Whenever. the average deny flow reaches 90 percent of the permitted everage deny flow for three consecutsve months. the permittee shed obten nesseeery authenreben from the Commeesien te sammence construcDon of the necessary eddicenal trosenent and/or solleesen facdices. In the case of a demoets westoweter treatment faciisty which i
reaches 79 percent of the pomutted dely everage flow for three conessutrve months, and the planned population to be served er to guensty of weste produced is not espected to exceed the dessen lemstehone of the treatment feasisty,9te pasmettee shed submet en engmeerms report suppernne thee claim to the Executive Director of the Commission. If in the judgement of the Enocutive Director the popuioson to be served wde not cause permit 1
noneempdenes, then the recuerement of thee section may be waved. To be effacave, any waver must es m wntmeand egned by the director of the Watershed Management Onneson of the Commiseson or en authorized ogent, and such wenrer of these recueremonte wdl be reviewed upon emperecen of the emnetmo permit; however.
{
eny such werver shall not be enterpreted as condonmg or encueme any violation of any permat parameter.
b.
The piene and specificatione for domestic sewage collection and treatment wortte escociated with any domestic permit must be approved by the C -.. :: :7. and fedure to soeure approval before commencmg construction of such wortte er making a eseeherge se e violetsen of thee permet and seeh day es en additional violation until sporoval hee been coeured.
i i
l c,
Permite for domeone weetoweter treatment plante are granted subsect to the policy of the Commission to l
encourage the development of eree-wide weste collecton, trosenent and desposal eyotems. The Comm'ssion l
reserves the right to amend any demostw, westoweter permit m accordance with applicable procedural recuaemente to require the system covered by thae permet to be mtegrated into en aree-wide system, should such es cove'oced, to require the de6svery of the westes authonred to be collected on, treeted by or discharged from said system, to Page 7
%m : 3 94
~_.-
sucn erewde evetem; or to arvend thes pumit sn any otM*r particuler to sffscluste the Comm,se.gn.,,,ge,.
$wcm ementmsnte mcy be mods wn:n the changes reewired are advisaele for water quehty contros gy,ga., ng l
are feasib6e on the beene of weets treatment technology, engineering, financial, and reisted cone'deratione esistieg et the twne the changes are recuered, esclussve of the loes of anweetment xt or revenues from any then esisting or proposed weste collection, treatment or disposal system.
oo,eestic w tow.i., ir en.ni pient..hw b. op.,.t.d.nd m. int.in.d my eeweg. pi.ni op.,.io,e hoid,ng a end certificate of competency et the required level es defined en 30 TAC Chapter 328.
- 10. Facilitsee which generete endustrial ooted weete as defined in 30 Teens Administrative Code (TAC) 1338.1 shall comply with j
these prowiesono:
i Any solid weete generated by the permittee dunng the managernent and treatment of weetoweter, es defined in 30 s.
i Teses Administrative Code ITAC) 1335.1 (includenJ but. net lomited to euch westos as ger#ege, refuse, eludge from a i
weets treatment, water supply treatment 7 ent or ser pollution control facdity, discarded meteriale, discarded meteriale i
to be recycled, whether the weste se soled, leeued, or somsoolidt must be managed in accordance with oil opphceese provie one of 30 TAC Chapter 330, reietne to induetnel Soisd Weste Management.
b.
Induetnel westowever that is being collected, ucumulated, stored, or preteneed before discharge through any final discharge outf all, specified by this permet,is concedered to be induetnel solid weste untd the westoweter peeses through the actual poent source descharge and must be managed in accordance with oil appissable previesons of 30 TAC Chester 4
- 338, The permittee shall provede wntten nonficateen, pursuant to the reevernmente of 30 TAC 5338.Sigi, to the Corrective c.
Action Section of the Commesseen's Induetnei and Mesordous Weste Diviesen enferming the C... _.of any closure
]
actsvity envolving en Induetnel Seeid Weste Management Unit, et least S3 deye ener to conducene such an activity, d.
Construction of any induetnei solid weste management unet rogueres the ener wntten notfication of the proposed ocavity to the Weste Evalueton Seccon of the Commseenen's induetnel one Heaerdous Weste Deviesen. No person shed diepose of induetnet solid weste, including eiudge er other solede from westoweter treeenent processee, ener to fulfilling the deed recordeten requirements of 30 TAC 5335.5.
l The term *induetnel solid weste management unst* means a landfill, surfees impoundment, weste-pile, industnel e.
fumace, incinerator, cement keen, insecnen well, contenner, drum, eeft dame weets senteenment covern, or any 6ther j
structure vessel, appurtenance, or other vnprovement en land used to manage induetnel solid weste.
1 f.
The permittee shall keep management recorde for eel sludge for other westel removed from any westoweter treatment process. These recorde shall fulfin oil applesable reeviremente of 30 TAC Chapter 335 and must include the foilowing, se it perteene to weetoweter treeenent and diosherge:
i' i.
Volume of weste and detetel generated from trecenent process:
ii.
Volume of weste disposed of on-sete or ehepped off.este:
sii.
Dete(s) of disposei:
ev.
Identity of hauler or transporter; v.
Lococon of disposal eats: and vi.
Method of final deepeeel.
The above recorde eheil be meentained on a monthly besie and be eveelebie et the plant este for inspection by authorized i
i representatives of the Teses Natural Resource Conservesen Commeeseen for et least five years.
- 11. For focalities to which the rogueremente of 30 Tomas Admenestroeve Code (TACI Chapter 335 de not apply, sludge and solid westee, including tank cleaneng and sentemeneted solide for despeesi, shall be desposed of in accordance with Chapter 361 l
of the Menith end Sefeey Code of Taose.
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Page S
%ACC 9 94 i
f i
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f Texas utilities Electric company Pemit No. 01854 other Reautr===nts i
i 1.
TRANSFQEERlLUID DISCHARGE
]
i There shall be no discharge of transformer fluid containing polychlorinated j
biphenyl (PCB) compounds.
2.,
METAL CLEANING WASTE 1
i The term " metal cleaning waste" means any wastewater resulting from cleaning (with or without chemical compounds) any metal process equipment including, but not limited to, boiler tube cleaning, boiler fireside cleaning, and air i
preheater cleaning.
j The tem ' chemical metal cleaning waste" means any wastewater resulting from the cleaning of any metal process. equipment with chemical compounds, including, but not limited to, boiler tube cleaning.
i 3.
LOW-VOLLGE WASTESQUEES i
I The term "lsw volume waste sources" means, wastewaters from, but not limited to: wet scrubber air pollution control systems, ion exchange water treatment 4
i system, water treatment, evaporator and boiler blowdown, laboratory and 1
sampling streams, floor drainage, cooling tower basin cleaning wastes and i
blowdown from recirculating house service water systems. Sanitary and air i
conditioning wastes are not included.
4.
FLOW-WEIGHTED AVERAGE TEMPERATURE Daily average temperature is defined as the flow weighted average temperature i
(FWAT) and shall be computed and recorded on a daily basis. FWAT shall be computed at equal time intervals not greater than two hours. The method of l
calculating FWAT is as follows:
l l
FWAT. simetATION (INSTAlf'ANE005 FLOW I INSTANTANEQUS TEW ERATURE) l SL3gth"10N (INS'IANTANE005 FLOW) i
" Daily average temperature shall be the arithmetic average of all FWAT's l
calculated during the calendar month.
I
' Daily maximus temperature" shall be the highest FWAT calculated during the t
calendar month.
5.
FREE AV N CK M IM ANALYSIS The tore" free available chlorine" shall mean the value obtained using the amperometric titration method for free available chlorine described in
" Standard Nothods for the Examination of Water and Wastewater".
Neither free available chlorine nor total residual chlorine may be discharged from any unit for more than two hours in any one day and not more than one unit j
In any plant may discharge free available or total residual chlorine at any one time unless the permittee can demonstrate to the permitting Agency that the i
units in a particular location cannot operate at or below the limitations l
specified in this po mit.
l Page 9 i
j Texas Utilities Electric Company permit No. 01854 Other Reauirements l
TOTAL RESIDUAL CHLo4INE 1
l The tem " total residual chlorine" (or total residual oxidants for intake water with bromides) means the value obtained using the amperometric method for total residual chlorine described in 40 CFR Part 136.
l Total residual chlorine may not be discharged from any single generating unit for more than two hours per day unless the discharger demonstrates to the i
pomitting authority that discharge for more than two hours is required for macroinvertebrate control.
Simultaneous multi-unit chlorination is permitted.
i 6.
MINIMat ANALYTICAL LEVEL (MAL)
)
Permit compliance / noncompliance deteminations will be based on the minimum analytical level (MAL) for toxic organic and inorganic parameters. Effluent concentrations measured as less than the MAL are deemed to be compliant with the pemit limitations. When an analysis of an effluent sample for the following parameters results in a measurement of less than the MAL, that parameter shall be reported as '< (MAL value)" and this shall be interpreted i
as a value of zero (0) for compliance purposes, a
i METALS A M CYAN N MAL (au/L)*
Copper (Tota')
10 l
7.
The pemittee shall conduct effluent sampling and reporting in accordance with i
30 TAC 319.4 - 319.12. A monthly affluent report must be submitted each month by the 25th day of the following month for each discharge which is described by
)
this pemit whether or not a discharge is made for that scath.
This provision supersedes and replaces the first paragraph of Provision 1 Self-i Reporting as defined on Page 3 of this permit.
l 8.
MIIIM IGNE DEFINITIM i
Chronic toxic criteria apply at the edge of the mixing zone. The mixing zone for Outfall 001 is defined as a volume within a radius of 100 feet from the l
point of discharge to Squaw Creek Reservoir.
Chronic temic criteria apply at the edge of the mixing zone. The mixing zone i
for outfan 005 is defined as a volume within a radius of 100 feet from the point of, discharge to Lake Granbury.
]
i
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Page 10
Te; ras Utilities Electric Company Permit No. MS5a 24-HOUR ACUTE BI0 MONITORING REOUIREMENTS:
FRESWATER
- l. Scene. Freauency and Methodoloav The provisions of this section apply individually and separately to i
a.
j Outfall 001 for whole effluent toxicity testing (biomonitoring).
No t
samples or portions of samples from one outfall may be composited with samples or portions of samples from another outfall. The provisions of this Section are in addition to other biomonitoring requirements in this
{
permit.
I b.
The permittee shall test the effluent for lethality in accordance with i
the provisions in this section. Such testing will determine if an effluent sample meets the Surface Water Quality Standard given at 30 TAC i 307.6 (e)(2)(B) of greater than 505 survival of the appropriate test organisms in 1005 effluent for a 24-hour period.
4 i
c.
The toxicity tests specified shall be conducted once per six months. The
]
pemittee shall conduct all toxicity tests utilizing the test organisms, procedures and quality assurance requirements specified in this section of the permit and in accordance with " Methods for Measuring the Acute Toxicity of Effluents and Receiving Waters to Freshwater and Marine i
Organisms" (EPA 600/4-90/027), or the most recent update thereof. The TNRCC may require the pensittee to repeat a test, including the control and all appropriate effluent dilutions, if the test acceptability criteria, procedures, and quality assurance requirements defined in'the test methods or in this permit are not satisfied. A repeat test shall be conducted within the required reporting period if any test is determined to be invalid. The following tests shall be used:
4 l
- 1) Acute 24-hour static toxicity test using Qagtinia gulag. A minimum of l
I five (5) replicates with eight (8) organisms per replicate shall be l
used for this test.
i j
- 2) Acute 24-hour static toxicity test using the fathead minnow (Pimanhales nromalas). A minimum of five (5) replicates with eight (8) organisms per repitcate shall be used for this test.
d.
In addition to an appropriate control (05 effluent), a 100% effluent concentration shall be used in the toxicity tests. Except as discussed l
in item 3.b, the control and/or dilution water shall consist of a l
standard, synthetic, moderately hard, reconstituted water.
i e.
This permit may be amended to require a whole effluent toxicity limit, i
chemical specific effluent limits, additional toxicity testing, and/or
- other appropriate actions to address toxicity. The pemittee may be required to conduct additional biomonitoring tests if biomonitoring data indicate multiple numbers of unconfirmed toxicity events.
- 2. Persistant Mortality The requirements of this section apply only when a toxicity test demonstrates a mean mortality of 50% or greater to organisms exposed to the 1005 eUluent j
concentration.
i i
4 a
l Page 11 I
4 i
t
i Texas Utilities Electric Company Permit No. 01854 I
j The perinittee shall conduct two (2) additional tests (retests) for each a.
species that demonstrates mortality of 505 or greater. The two ratests shall be conducted once per week for two (2) weeks. Five effluent i
dilution concentrations in addition to an appropriate control (05 effluent, as specified in item 1.d.), shall be used in the two (2) i retests. These additional effluent concentrations shall be 65,135,255, j
505 and 1005 effluent.
The first retest shall be conducted within 15 days of the laboratory determination of 50% or greater mortality. All test results shall be submitted to the Toxicity Evaluation Team of the Watershed Management Division within twenty (20) days of test completion of the second retest. Test completion is defined as the last day of the test.
I b.
If one or both of the two retests specified in item 2.a demonstrates 505 1
or greater mortality at the 1005 effluent concentration, the permittee shall initiate the Toxicity Reduction Evaluatics requirements as j
specified in Part 5 of this Section.
1 Within three (3) years from the date of completion of the test confirming
(
c.
j 505 or greater mortality at the 1005 effluent concentration, the pemittee shall demonstrate greater than 505 sean survival of the i
appropriate test organism in 1005 effluent for a 24-hour test period for j
all subsequent testing. This is a pemit limit.
- 3. Raauired Toxicity Testina Canditions i
a.
Test Acceptance The permittee shall repeat any toxicity test, including the control and all 1
appropriate effluent dilutions, if the toxicity test control (05 effluent)
]
does not have a mean survival equal to or greater than 905.
l b.
Dilution Water l
In accordance with item 1.d the control and/or dilution water shall normally consist of a standard, synthetic, moderately hard, reconstituted water.
If i
the permittee is utilizing the results of a 44-Hour Acute test or chronic test to satisfy the 24-Hour Acute Biomonitoring requirements in accordance i
with item 1.f. the pomittee may use the receiving water as the control and dilution water if the control meets the requirements of item 3.a.
l c.
Samples and Composites 4 The pomittee shall collect one flow-weighted 24-hour composite sample from 0utfall(s) 001. A 24-hour composite sample consists of a minimum l
of twelve (12) effluent portions collected at equal time intervals representative of a 24-hour operattmp day and combined proportional to flow, or a sample continuously col' ected proportional to flow over
]
a 24-hour operating day.
- 2) The pemittee shall collect the 24-hour composite samples such that f
the samples are representative of any periodic episode of
)
chlorination, biocide usage, or other potentially toxic substance j
discharged on an intomittent basis.
t Page 12
i
.exas utilities Electric Company Permit No. 01854 I
l
- 3) The permittee shall initiate the toxicity tests within 36 hours4.166667e-4 days <br />0.01 hours <br />5.952381e-5 weeks <br />1.3698e-5 months <br /> after collection of the last portion of the 24 haur composite sample.
Samples shall be maintained at a temperature of 4 degrees Centigrade during collection, shipping, and storage.
- 4) If flow from the outfall being tested ceases during the collection of J
the affluent composite sample, the requirements for the minimum number
{
of effluent portions and the sample holding time are waived during 4
that sampling period. However, the permittee must collect an effluent i
composite sample volume that is sufficient to complete the required i
toxicity test. The effluent composite sample collection duration and
{
methodology associated with the abbreviated sample collection must be documented in the full report required in item 4.a of this section.
i
- 4. Renortina 3
a.
The permittee shall prepare a full report of the results of all tests conducted pursuant to this persit in accordance with the Report Preparation Section of " Methods for Measuring the Acute Toxicity of i
Effluents and Receiving Waters to Freshwater and Marine Organisms" (EPA i
600/4-90/027), or the most recent update thereof, for every valid and j
invalid toxicity test initiated. All full reports shall be retained for three (3) years at the plant site and shall be available for inspection j
by TNRCC personnel.
b.
A full. report must be submitted with the first valid biomonitoring test results for each test species, but need not be submitted for subsequent testing unless specifically requested. The permittee shall routinely i
report the results of each toxicity test on the Table 2 forms provided i
with this permit.
All Table 2 reports must include the information specified in the Table 2 form attached to this permit. Table 2 reports and full reports shall be submitted to the Toxicity Evaluation Team of the Watershed Management Division.
4 i
c.
If semi-annual biomonitoring is required, the test results (Table 2 reports) are due on the sixth (6th) month and annual anniversary dates l
of permit issuance.
The results of the initial toxicity tests are due j
six (6) months from the permit issue date.
d.
If quarterly blomonitoring is required, the test results (Table 2 reports) are due on the third (3rd), sixth (6th), and ninth (9th) month l
and annual anniversary dates of permit issuance.
The results of the l
initial toxicity tests are due three (3) months from the permit issue date.
a i
j
- 5. Toxicity Raduction Evaluation iTRE) a.
Within forty-five (45) days of the last test day of the retest that i
demonstrates 505 or greater mortality at the 1005 effluent concentration, i
the permittee shall submit a general outline to the TNRCC for initiating i
a Toxicity Reduction Evaluation (TRE).
The outline shall include, but j
not be limited to, a description of project personnel, a schedule for i
Page 13
Texas utilities Electric Company Perm t No. 01854 obtaining consultants (if needed), a discussion of influent and/or effluent data available for review, a sampling and analytical schedule, and a proposed TRE initiation date.
i b.
Within ninety (90) days of the last test day of the retest that I
demonstrates 50% or greater mortality at the 1005 effluent concentration, the permittee shall submit a TRE Action Plan and Schedule for conducting j
a TRE.
The Plan and Schedule shall be submitted to the Toxicity Evaluation Team of the Watershed Management Division. The plan shall 3
specify the approach and methodology to be used in performing the TRE.
A Toxicity Reduction Evaluation is an investigation intended to determine those actions necessary to eliminate or reduce effluent toxicity to an j
acceptable level. A TRE is a step-wise process which combines toxicity j
testing with physical and chemical analysis of a toxic effluent, to identify the constituents causing effluent toxicity and/or to identify e
i treatment methods which will reduce tra effluent toxicity. The TRE Action Plan shall lead to the successful elimination of 505 or greater mortality i
at the 1005 effluent concentration for both test species defined in item j
1.c.
As a minimum, the TRE Action slan shall include the following:
c
~
- 1) Specific Activities - The TRE Action Plan shall detail the specific j
approach the permittee intends to utilize in conducting the TRE. The approach may include toxicity characterizations, toxicity identifications, toxicity confimations, source evaluation, i
treatability studies, and/or alternative approaches.
When the i
permittee conducts toxicity characterization analyses, the permittee shall perform multiple characterizations and follow the procedures
]
specified in the document entitled, " Methods for Aquatic Toxicity i
Identification Evaluations:
Phase Toxicity Characterization Procedures" (EPA-600/6-91/003), or alternate procedures. When the permittee conducts toxicity identification evaluations and j
confirmations, the pemittee shall perform multiple identifications i
and follow the methods specified in the documents entitled, " Methods for Aquatic Toxicity Identification Evaluations, Phase II Toxicity i
Identification Procedures" (EPA /600/3-88/035) and " Methods for Aquatic Toxicity Identification Evaluations, Phase III Toxicity Confirmation l
Procedures' (EPA /600/3-88/036). All characterization, identification, i
and confirmation tests shall be conducted in an orderly and logical j
progression; f
- 2) Sampling Plan - The TRE Action Plan should describe sampling locations, methods, holding times, chain of custody, and preservation t
techniques. The effluent sample volume collected for all tests shall be adequate to perform the toxicity characterization / identification /
confirmation procedures, and chemical specific analyses when the 4
j toxicity tests show nortality at the 1005 effluent concentration.
~
i Where the permittee has identified or suspects specific pollutant (s) j and/or source (s) of effluent toxicity, the permittee shall conduct, concurrent with toxicity testing, chemical specific analyses for the identified and/or suspected pollutant (s) and/or source (s) of effluent i
toxicity; 1
e l
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Page 14 5
. - - - - - - - ~
l Id ds Utilities c.s-.... wtweny Permit No. 01854 i*
- 3) Quality Assurance Plan - The TRE Action Plan should address record 2
i keeping and data evaluation, calibration and standardization, baseline j
- tests, system blanks,
- controls, duplicates,
- spikes, toxicity i
persistence in the samples, randomization, reference toxicant centrol charts, as well as mechanisms to detect artifactual toxicity; and
)
- 4) Project Organization - The TRE Action Plan should describe the project staff, project manager, consulting engineering services (where j
applicable), consulting analytical and toxicological services, etc.
j Within thirty (30) days of submittal of the TRE Action Plan and Schedule, c.
j the permittee shall implement the TRE with due diligence.
d.
The pemittee shall submit quarterly TRE Activities Reports to the Toxicity Evaluation Team of the Watershed Management Division concerning the progress of the TRE.
The quarterly TRE Activities Reports are due on or before April 20th, July 20th, October 20th, and January 20th. The report shall detail information regarding the toxicity reduction j
evaluation activities including:
i
)
- 1) results and interpretation of any chemical specific analyses for the j
identified and/or suspected pollutant (s) perforimi during the quarter;
- 2) results and interpretation of any characterization, identification, and confimation tests performed during the quarter; i
- 3) any data and/or substantiating documentation which identifies the j
pollutant (s) and/or source (s) of effluent toxicity;
- 4) results of any studies / evaluations concerning the treatability of the facility's affluent toxicity; i
- 5) any data which identifies effluent toxicity control mechanisms that I
will reduce effluent toxicity to the level necessary to achieve less than 505 mortality at the 1005 effluent concentration; and l
- 6) any changes to the initial TRE Plan and Schedule that are believed j
necessary as a result of the TRE findings.
i Copies of the TRE Activities Report shall also be submitted to the U.S.
j EPA Region 6 Pemitting Office and the TNRCC Region 4 Office.
i j
e.
The pomittee shall continue routine biomonitoring quarterly (as a minimum) during the TRE, using the most sensitive species unless, after initiating the TRE, the effluent ceases to induce 50% or greater mortality in the 1005 effluent concentration for twelve (12) consecutive weeks with at least weekly sampling and testing. Such evidence shall be submitted to the TNRCC with a statement of intent to cease the TRE. The l
permittee may discontinue the TRE requirements and continue with the testing as required by this section.
1 This provision is not applicable where less than 505 mortality at the 1005 effluent concentration is detemined for a period of twelve (12) consecutive weeks as a result of corrective actions taken. Corrective actions necessary to eliminate or reduce effluent toxicity include source Page 15 t
.u..
n.,,,...
> =.
... o....f verm t No. 01854 1
reduction or elimination, housekeeping improvements, changes in chemical usage, and modifications of wastewater or effluent treatment.
i f.
The permittee shall complete the TRE and submit a Final Report on the Toxicity Reduction Evaluation Activities no later than eighteen (18) months from the last test day of the retest that demonstrates SM or greater mortality at the los affluent concentration. The report shall j
provide information pertaining to the specific control mechanism (s) selected that will, when implemented, result in reduction of effluent toxicity as specified in item 2.c. The report will also provide a specific corrective action schedule for implementing the selected control mechanism (s).
Copies of the Final Report on the Toxicity Reduction Evaluation Activities shall also be submitted to the U.S. EPA Region 6 Permitting Office and the TNRCC Region 4 Office.
g.
Based upon the results of the TRE and proposed corrective actions, this permit may be amended to modify the biomonitoring requirements whera necessary, to require a compliance schedule for implementation c
.i corrective actions, to specify whole affluent toxicity limits in Part 4
}
of the permit, and/or to specify chemical specific effluent limits.
l l
i
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i l
i l
i 1
i l
Page 16
Texas utilities............,
Permit so, cigy 3
TABLE 2 (SHEET 1 0F 2) i DAPHNIA 21&EX SURVIVAL i.
}
GENERAL INFORMATION J
Time (as/ps)
Date s,,
j Composite Sample Collected Test Initiated j
PERCENT SURVIVAL 4
4 l
Time Rap Percent effluent (51
]
05 65 135 255 505 1005 A
24h 8
i C
O i
j E
i nEM' i
i i
1.
Enter percent effluent corresponding to the LC50 below:
i 24 hour2.777778e-4 days <br />0.00667 hours <br />3.968254e-5 weeks <br />9.132e-6 months <br /> LC50 (DashalA or cariodmahain) =
% effluent (circle appropriate genus) 955 confidence limits:
Method of LC50 calculation:
I I
'If 24-hour survivorship data from the chronic Cariodanhnia shdtja test is being used, the mean survival per dilution for all 10 replicates shall be reported on this row.
Page 17 i
j i
j Texas Utilities Electric Company Permit No, 01g54 i
4 4
TA8LE 2 (SHEET 2 0F 2) j FATHEAD MINNOW SURV! VAL (Pimenhales oronalas) l 1
GENERAL INFORMATION 1i l
Time (am/ps)
Date j
Composite Sample Collected Test Initiated i
PERCENT SURVIVAL 3
1 Time Rep Percent effluent (5)
)4 05 65 135 255 505 1005 A
2 j
24h E
C D
l E
i MEAN 1
l 4
l.
Enter percent effluent corresponding to the LC50 below:
l 24 hour2.777778e-4 days <br />0.00667 hours <br />3.968254e-5 weeks <br />9.132e-6 months <br /> LC50 (Plaanhales) =
5 effluent I
995 confidence limits:
l' Method of LC50 calculation:
i i
I i
l l
l1 Page 18 I
f.
Texas Utilities Electric Company Perm t No. 01854 i+
l CHRONIC BIOMONITORINc REQUIREMENTS: FRESHtfATEA
)
]
- 1. SCOPt. FREQUENCY. Ald) METHonntogy i
a.
The provisions of this section are applicable to Outfall(s) 001 for whole effluent toxicity.
l b.
The pemittee shall test the effluent for toxicity in accordance with the 3
i provisions in this section.
This testing will determine if an appropriately dilute affluent sample adversely affects the survival of f
the test organism. The permittee shall submit the results of these tests j
on the appropriate Discharge Monitoring Report (OMR) for the reporting
}
period.
j c.
The permittee shall implement all toxicity tests utilizing the test organisms, procedures, and quality assurance requirements specified in this section of the permit and in accordance with the EPA manual, "Short-Tern Methods for Estimating the Chronic Toxicity of Effluents and i
Receiving Waters to Freshwater Organisas", EPA /600/4-8g/001, or the latest update thereof. The permittee shall repeat a test, including the i
control and all effluent dilutions, if the procedures and quality I
assurance requirements defined in the test methods or in this pemit are l
not satisfied.
A repeat test shall be conducted within the required j
reporting period of any test determined to be invalid.
j d.
The permittee shall utilize the Carfodanhnia didlig chronic static ren~ewal i
survival and reproduction test (Method 1002.0 or the most recent i
publication). This test should be terminated when 605 of the surviving females in the control produce three broods. The permittee shall conduct j
the Cariedanhnia didlig toxicity test at a frequency of once per year.
e.
The permittee shall utilize the Einghalag nramnias (Fathead minnow) chronic static renewal 7-day larvla survival and growth test (Method
]
1000.0 or the most recent publication). A minimum of five (5) replicates with eight (8) organisms per replicate must be used in the control and in each effluent dilution of this test. The permittee shall conduct the Fathead sinnow toxicity test at a frequency of once per year.
i i
f.
The permittee shall use five effluent dilution concentrations in addition l
to a control (05 effluent) in each toxicity test.
These additional effluent concentrations shall be 325, 425, 545, 755, and 1005. Dilution unter used in the toxicity tests shall be the receiving water collected j
as close to the point of discharge as possible but unaffected by the diesberge.
The critical dilution is the effluent concentration representative of the proportion of effluent in the receiving water
-during critical low flow or critical mixing conditions.
The low-flow j
effluent concentration (critical dilution) is defined as the 1005 l
effluent.
i t
Page 19 l
_~
-.- --.-~
Texas utilities Electric Company Perm t No. 01854 This permit may be amended to require a whole effluent toxicity limit, 4
g.
j chemical specific effluent limits, additional toxicity testing, and/or other appropriate actions to address toxicity. The pemittee may be required to conduct additional biomonitoring tests if blomonitoring data indicate multiple numbers of unconfirmed toxicity events.
h.
This permit may be reopened to require whole affluent toxicity limits, chemical specific effluent limits, additional testing, and/or other approcriate actions to address toxicity.
a
- 2. PERSISTENT LETHALITY The requirements of this subsection apply only when a toxicity test demonstrates significant lethal effects at the 1005 effluent concentration.
Significant lethal effects are herein defined as a statistically significant 4
difference at the 955 confidence level between the survival of the i
appropriate test organism in a specified effluent dilution and the control j
(05 effluent).
The permittee shall conduct a total of two (2) additional tests for any a.
species that demoutrates significant lethal effects at the 1005 effluent i
concentration.
The two additional tests shall be conducted monthly j
during the next two consecutive months.
The permittee shall not substitute either of the two additional tests in lieu of routine toxicity testing, unless the specified testing frequency for the species demonstrating significant lethal effects is monthly.
The full re* port shall be prepared for each test required by this section in accordance j
with procedures outlined in Item 4 of this section.
i b.
If one or both of the two additional tests demonstrates significant lethal effects at the 1005 effluent concentration, the permittee shall i
initiate Toxicity Reduction Evaluation requirements as specified under Itse 5 of this section.
j c.
If one or both of the two additional tests demonstrates significant l
lethal effects at the 1005 effluent concentration, the pemittee shall henceforth increase the frequency of testing for this species at a frequency of once per quarter for the life of the permit.
d.
The provisions of Ites 2.a are suspended upon submittal of the TRE Action i
P1an.
e.
If the testim frequency in Item 1 is monthly for a species, the permittee shal' initiate the Toxicity Reduction Evaluation requirements as specified under Itse 5 of this section when any two of three consecutive monthly toxicity tests exhibit significant lethal effects at 4
the 1005 effluent concentration.
1 j
- 3. REQUIRED T0XICITY TESTING CONDITIONS l
a.
TEST ACCEPTANCE 4
The permittee shall repeat any toxicity test, including the control and all effluent dilutions, which fails to meet any of the foi ;owing criteria:
{
Page 20 1
1
Texas Ut111 ties Electric Company pernit No. 01354 i
- i. The toxicity test control (015 effluent) must have survival equal to or greater than 8 5.
11.
The mean number of Cariodanhnia dglia neonates produced per surviving female in the control (M efPluent) must be 15 or more.
I 111. The mean dry weight of surviving Fathead minnow larvae at the end i
of the 7 days in the ccCol (M effluent) must be 0.25 mg per
]
larva or greater.
tv.
The percent coefficient of variation between replicates shall be 40% or less in the control (05 effluent) for: the young of surviving females in the Cariedanhnia dukia reproduction test; the growth and survival endpoints of the Fathead minnow test.
- v. The percent coefficient of variation between rer,11 cates shall be 40%
or less in the 1005 effluent concentration, 301A11 significant lethal i
or nonlethal effects are exhibited for: the young of surviving females i
in the Cariadanhn'a dghig reproduction test; the growth and survival j
endpoints of the Pathead minnow test.
j b.
STATISTIf.g INTERPRETATION
- 1. For the Cariodanhnia dghia survival test, the statistical analyses used to determine if there is a significant difference between the 4
i control and the low flow (critical dilution) shall be Fisher's Ekact Test as described in the "Short-Tern Methods for Estimating the i
Chronic Toxicity of Effluents and Receiving Waters to Freshwater
{
Organisms", EPA /600/4-89/001, or the most recent update thereof, f
11.
For the Cariadanhnia dghig reproduction test and the Fathead minnow larval survival and growth test, the statistical analyses used to 4
detemine if there is a significant difference between the control and the low flow effluent concentration (critical dilution) shall be in accordance with the methods for detemining the No Observed l
Effect concentration (N0EC) as described in the "Short-Term Methods i
for Estimating the Chronic Toxicity of Effluents and Receiving i
Waters to Freshwater Organisms". EPA /600/4-89/001, or the most i
recent update thereof.
c.
DILiffl m WATER
- 1. Dilution water used in the toxicity tests will be receiving water collected as close to the point of discharge as possible but l
unaffected by the discharge. The pemittee shall substitute synthetic dilution water of similar pH, hardness, and alkalinity to the closest downstream perennial water for; (A) toxicity tests conducted on affluent discharges to receiving water classified as intermittent streams; and (B) toxicity tests conducted on effluent discharges emere no receiving water is available due to zero flow conditions.
Page 21
Texas U%ilities Electric Company Permit No. 01854 i
1 11.
If the receiving water is unsatisfactory as a result of instream toxicity (fails to fulfill the test acceptance criteria of Item 3.a), the permittee may substitute synthetic dilution water for the receiving water in all subsequent tests provided the unacceptable j
receiving water test met the following stipulations:
I k
(A) a synthetic dilution water control which fulfills the test i
acceptance requirements of Item 3.a was run concurrently with j
the receiving water control; 4
j (B) the test indicating receiving water toxicity has been carried j
out to completion (i.e., 7 days);
i (C) the pereittee includes all test results indicating receiving water toxicity with the full report and information required by Item 4 below; and the synthetic dilution water shall have a pH, 2
l hardness, and alkalinity similar to that of the receiving water 4
or closest downstream perennial water not adversely affected by the discharge, provided the magnitude of these parameters will not cause toxicity in the synthetic dilution water.
The permittee may substitute other appropriate dilution water with
)
chemical and physical characteristics similar to that of the receiving j
water if approved by the TNRCC.
1 j
d.
- 1. The permittee shall collect three flow-weighted 24-hour composite samples from 0utfall(s) 001. A 24-hour composite sample consists of a minimum of twelve (12) effluent portions collected at equal time i
intervals representative of a 24-hour operating day and combined l
proportional to flow or a sample continuously collected proportional l
to flow over a 24-hour operating day.
1 i
11.
The pemittee shall collect a second 24-hour composite sample for use during the 24-hour renewal of each dilution concentration the i
for both tests. The permittee must collect the 24-hour composite samples so that the maximum holding time for any affluent sample i
shall not exceW 72 hours8.333333e-4 days <br />0.02 hours <br />1.190476e-4 weeks <br />2.7396e-5 months <br />. The permittee must have initiated the i
toxicity test within 36 hours4.166667e-4 days <br />0.01 hours <br />5.952381e-5 weeks <br />1.3698e-5 months <br /> after the collection of the last portion of the first 24-hour composite sample.
Samples shall be chilled to 4 degrees Contigrada during collection, shipping, and/or j
storage.
111. The permittee must collect the 24-hour composite samples such that the effluent samples are representative of any periodic episode of j
chlorination, biocide usage, or other potentially toxic substance discharged on an intamittent basis.
i tv.
If the flow from the outfall(s) being tested ceases during the i
collection of affluent samples, the requirements for the minimum number of effluent samples, the minimum number of effluent portions and the sample holding time are waived during that sampling period.
However, the pemittee must collect an effluent composite sample volume during the period of discharge that is sufficient to l
Page 22 l
Texas-Utilities Electric Company Permit No. 01854 complete the required toxicity tests with daily renewal of effluent.
When possible, the effluent samples used for the toxicity tests shall be collected on separate days. The effluent i
composite sample collection duration and the static renewal protocol associated with the abbreviated sample collection must be documented in the full report required in Item 4 of this section.
4.
REPORTING i
The permittee shall prepare a full report of the results of all tests a.
conducted pursuant to this Part in accordance with the Report Preparation Section of "Short-Tem Methods for Estienting the Chronic Toxicity of Effluents and Receiving Waters to Freshwater Organisms". EPA /600/4-8g/001, for every valid or invalid toxicity test initiated, whether i
carried to completion or not. All full reports shall be retained for 3 i
years at the plant site and shall be available for inspection by TNRCC j
personnel.
b.
A full report must be submitted with the first valid blomonitoring test results for each test species, but need not be submitted for subsequent testing unless, specifically requested. The permittee shall routinely i
report the reshlts of each toxicity test on the Table 1 forms provided i
with this permit. All Table I reports must include the information
)
specified in the Table 1 form attached to this permit. Table 1 reports j
and full reports shall be submitted to the Toxicity Evaluation Team of l
the Watershed Management Division.
~
i c.
If monthly biomonitoring is required, the biomonitoring test results (Table 1 reports) are due on or before the 20th day of the month j
following sampling.
j d.
If quarterly biomonitoring is required, the biomonitoring test results i
(Table 1 reports) are due on or before April 20th, July 20th, October 20th, and January 20th, for biomonitoring conducted during the previous l
calendar quarter.
i I
e.
If semi-annual biomonitoring is required, test results (Table 1 reports)
{
are due on or before July 20th and January 20th for biomonitoring j
conducted during the previous 6 month period.
}
f.
If annual blemonitoring is required, test results (Table 1 reports) are l
due on or before January 20th for biomonitoring conducted during the i
previous 12 month period.
- 5. Toll, CITY REDUCTIM EVALUATION (TRE) 1 a.
Within forty-five (45) days of the last test day of the retest that j
confirms significant lethal effects at the critical dilution, the permittee shall submit a general outline to the TMRCC for initiating a ToxicityReductionEvaluation(TRE). The outline shall include, but not l
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Page 23 i
i
Texas Utilities Electric Company Permit No. 01854 be limited to a description of project personnel, a schedule for obtaining cons,ultants (if needed), a discussion of influent and/or i
effluent data available for review, a sampling and analytical schedule, and a proposed TRE initiation date.
i b.
Within ninety (90) days of the last test day of the retest that confims 2
significant lethal effects at the critical dilution, the permittee shall submit a TRE Action Plan and Schedule for conducting a TRE. The Plan and Schedule shall be submitted to the Toxicity Eva vation Team of the Watershed Management 01 vision. The plan shall specify the approach and i
methodology to be used in performing the TRE. A Toxicity Reduction l
Evaluation is an investigation intended to determine those actions necessary to eliminate or reduce effluent toxicity to an acceptable level. A TRE is a step-wise process which combines toxicity testing with physical and chemical analysis of a toxic effluent, to identify the constituents causing effluent toxicity and/or to identify treatment methods which will reduce the effluent toxicity. The TRE Action Plan shall lead to the successful elimination of significant lethal effects at the critical dilution (1005 effluent) for both test species defined in item 1.d.
As a minimum, the TRE Action Plan shall include the j
following:
i i
- 1) Specific Activities - The TRE Action Plan shall detail the specific approach the permittee intends to utilize in conducting the TRE. The approach may include toxicity characterizations, toxicity i
identifications, toxicity confirmations, source evaluation, l
~ treatability studies, and/or alternative approaches.
When the permittee conducts toxicity characterization analyses, the permittee i
shall perform multiple characterizations and follow the procedures specified in the documents entitled, " Methods for Aquatic. Toxicity Identification Evaluations:
Phase Toxicity Characterization Procedures" (EPA-600/6-91/003) and
" Toxicity Identification i
Evaluation: Characterization of Chronically Toxic Effluents, Phase !"
(EPA-600/6-91/005), or alternate procedures. When the permittee I
conducts toxicity identification evaluations and confirmations, the permittee shall perform multiple identifications and follow the i
methods specified in the documents entitled, " Methods for Aquatic Toxicity Identification Evaluations, Phase II Toxicity Identification Procedures" (EPA /600/3-88/035) and " Methods for Aquatic Toxicity l
Identification Evaluations, Phase III Toxicity Confirmation Procedures" (EPA /600/3-88/034). All characterization, identification, i
and confirmation tests shall be conducted in an orderly and logical progression;
- 2) Sampling Plan The TRE Action Plan should describe saopling locations, methods, holding times, chain of custody, and preservation 4
techniques. The effluent saeple volume collected for all tests shall be adequate to perfom the whole affluent toxicity test, the toxicity characterization /
identification /
confirmation procedures, and applicable chemical specific analyses when probable toxicant (s) have been identified.
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Page 24 i
.-_=-.--------
Texas Utiittles Electric Company Permit No. 01854 i
Where the permittee has identified or suspects specific pollutant (s) and/or source (s) of effluent toxicity, the pemittee shall conduct, concurrent with toxicity testing, chemical spectfic analyses for the identified and/or suspected pollutant (s) and/or source (s) of effluent toxicity;
- 3) Quality Assurance Plan - The TRE Action Plan should address record j
keeping and data evaluation, calibration and standardization, baseline i
- tests, system blanks,
- controls, duplicates,
- spikes, toxicity
{
j persistence in the samples, randomization, reference toxicant control
)
charts, as well as mechanisms to detect artifactual toxicity; and
- 4) Project Crganization - The TRE Action Plan should describe the project j
staff, project manager, consulting engineering services (where applicable), consulting analytical and toxicological services, etc.
c.
Within thirty (30) days of submittal of the TRE Action Plan and Schedule, j
the permittee shall implement the TRE with due diligence.
1 d.
The permittee shall submit quarterly TRE Activities Reports to the Toxicity Evaluation Team of the Watershed Management Division concerning the progress of the TRE.
The quarterly TRE Activities Reports are due 1
on or before April 20th, July 20th, October 20th, and January 20th. The report shall detail infomation regarding the toxicity reduction evaluation activities including:
i
- 1) results and interpretation of any chemical specific analyses for the j
identified and/or suspected pollutant (s) performed during the quarter; j
1
- 2) results and interpretation of any characterization, identification, j
and confirmation tests performed during the quarter;
- 3) any data and/or substantiating documentation which identifies the pollutant (s) and/or source (s) of effluent toxicity;
- 4) results of any studies / evaluations concerning the treatability of the j
facility's effluent toxicity; i
j
- 5) any data which identifies effluent toxicity control mechanisms that i
will reduce effluent toxicity to the level necessary to meet no j
significant lethality at the critical dilution; and
}
- 6) any changes to the initial TRE Plan and Schedule that are believed j
necessary as a result of the TRE findings.
Copies of the TRE Activities Report shall also be submitted to the U.S.
EPA Region 4 Permitting Office and the TNRCC Region 4 office.
e.
The permittee shall continue routine biomonitoring quarterly (as a
{
minimum) during the TRE, using the most sensitive species unless. after initiating the TRE, the effluent ceases to induce lethal responses. A cessation of lethality is defined as no significant lethality at the 4
{
critical dilution for a period of twelve (12) consecutive months with at i
least monthly sampling and testing. Such evidence shall be submitted to i
the TNRCC with a statement of intent to cease the TRE. The permittee may i
I Page 25 l
lenas utilities electric Co@any Permit No. 01854 O
discontinue the TRE requirements and continue with the routine biomonitoring testing.
This provision is not applicable where significant lethality is absent at the critical dilution for a period of twelve (12) consecutive months as a result of corrective actions taken. Corrective actions necessary to eliminate or reduce affluent toxicity include source reduction or elimination, housekeeping improvements, changes in chemical usage, and modifications of wastewater or effluent treatment.
f.
The permittee shall complete the TRE and submit a Final Report on the Toxicity Reduction Evaluation Activities no later than twenty-eight (28) months from the last test day of the retest that confirmed significant lethal effects in the critical dilution.
The report shall provide information pertaining to the specific control mechanise(s) selected that will, when implemented, result in reduction of effluent toxicity to no significant lethality at the critical dilution (1005 effluent). The report will also provide a specific corrective action schedule for implementing the selected control mechanise(s).
Copies of the Final Report on the Toxicity Reduction Evaluation Activities shall also be submitted to the U.S. EPA Region 6 Permitting Office and the TNRCC Region 4 office.
g.
Based upon the results of the TRE and proposed corrective actions, this pensit may be amended to modify the biomonitoring requiresents where necessary, to require a compliance schedule for implementation of corrective actions, to specify whole affluent toxicity limits, and/or to specify chemical specific effluent limits.
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Page 26
l 1exas Utilities glectric Company Permit No, 01354 O
TABLE 1 (SHEET 1 0F 4)
BIOMONITORING REPORTING CERI00APHNIA Q131& SURVIVAL AND REPRODUCTION Date Time Date Time Dates and Times No. 1 FROM:
T0:
Composites Collected No. 2 FROM:
TO:
No. 3 FROM:
T0:
Test initiated:
am/pm date Dilution water used:
Receiving Synthetic Dilution water water NUMBER OF YOUNG PRODUCED PER FEMALE AT END OF TEST Percent effluent (5)
REP 05 325 425 545 755 1005 A
B C
D E
F 4
G j
I i
l J
l m am.
I fand h l
3 CVE*
- coefficient of variation = standard deviation x 100/mean (calculation based 4
e on young of the surviving females)
Designate males (M), and dead females (D-x), along with number of neonates (x) released prior to death.
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Page 27
Texas Utilities O ectric Company Permit No. 01854 i
TABLE 1 (SHEET 2 0F 4) j CERI00APHNIA Quila SURVIVAL AND REPRODUCTION TEST
- 1. Dunnett's Procedure or Steel's Nany-One Rank Test or Wilcoxon Rank Sun Test (with Bonferroni adjustment) or t-test (with Bonferroni adjustment) as r
l appropriate:
l Is the mean number of young produced per female significantly less (p=0.05) than the number of young per female in the control for the % effluent j
corresponding to (significant nonlethal effects):
4 CRITICAL DILUTION (5):
YES N0 PERCENT SURVIVAL
]
Percent effluent (5)
I 1
]
Time of Reading M
325 425 58 755 1005 24h l
4m i
i End of Test 2.
Fisher's Exact Test:
i Is the mean survival at test end significantly less (p=0.05) than the control survival for the 5 effluent corresponding to (lethality):
j CRITICAL DILUTION (5):
YES NO 1
- 3. Enter percent effluent corresponding to each NDEC (no observed effect concentratten) below and circle the lowest number:
1 J
a.) NOEC survival 5 effluent
=
1
)
b.)-NDEC reproduction 5 effluent 1
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Page 28
Texas Utilities Electric Company Permit No. 01854 j
TABLE 1 (SHEET 3 0F 4) l l
810N0NITORING REPORTING FATHEAD MINNOW LARVAE GROWTH AND SURVIVAL (Pimanhales nromalas)
Date Time Date Time Dates and Times No. 1 FRON:
T0:
Composites Collected No. 2 FRON:
TO:
l No. 3 FRON:
TO:
Test initiated:
as/pm date Dilution water used:
Receiving Synthetic Dilution 4
j water water i
j FATHEAD MINNOW GROWTH DATA I
Effluent Average Dry Weight in milligrees Mean i
Concentration in replicate chambers Dry i
(5)
Weight CVE*
A B
C D
E a
l 325 j
425 545,.,.
79
-+,
100%
l
- coefficient of variation'= standard deviation x 100/mean
- 1. Dunnett's Procedure or Steel's Many-One Rank Test or Wilcoxon Rank Sun Test (with Bonferront adjustment) or t-test (with Bonferront adjustment) i as appropriate:
4 Is the mean dry weight (growth) at 7 days significantly less (p=0.05) than the control's dry weight (growth) for the 5 effluent corresponding to l
(signiffcant nonlethal effects):
CRITICAL DILUTION (5):
YES N0 4
l Page 2g
ie u s v u ii u es o e u a w...yo.,
Pe mit No. 01854 i
TA8LE I (SHEET 4 0F 4)
BIOMONITORING REPORTING 3
FATHEAD NINN0W GROWTH AND SURVIVAL TEST FATHEAD NINN0W SURVIVAL DATA i
Effluent Percent Survival in Nean percent CVE Concentration replicate chambers survival I'
A B
C D
E 24h 48h 7
day 05
~
35 425 755 1005 coefficient of variation = standard deviation x 100/mean j
- 2. Dunnett's Procedure or Steel's Many-One Rank Test or Wilcoxon Rank Sua '
t Test (with Bonferroni adjustment) or t-test (with Bonferront adjustaant) as appropriate:
4 Is the mean survival at 7 days significantly less (p=0.05) than the control survival for the 5 effluent corresponding to:
1 l
CRITICAL DILUTION (5):
YES ND
- 3. Enter percent affluent corresponding to each N0EC (no observed effect 4
i concentration) below and circle the lowest number:
I j
a.) N0EC survival 5 effluent
=
b.) NOEC growth
% effluent
=
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