Loading...
HomeMy WebLinkAboutNC0086665_Issuance of Permit_20010105 • State of North Carolina Department of Environment • and Natural Resources Division of Water Quality James B. Hunt, Jr., Governor I1CDE '1R Bill Holman, Secretary NORTH CAROLINA DEPARTMENT OF Kerr T. Stevens, Director ENVIRONMENT AND NATURAL RESOURCES January 5,2001 Ms.Starla Lacy,Environmental Specialist Rockingham Power LLC 1000 Louisiana,Suite 5800 Houston,Texas 77002-5050 Subject: NPDES Permit Issuance Permit Number NC0086665 Combustion Turbine Facility Rockingham County Dear Ms.Lacy The Division issued NPDES permit NC0086665 to Dynegy,Incorporated on November 19,1999. The Division has reviewed your request for permit modification at the subject facility. Specifically,you requested a modification to the chronic toxicity testing requirement. In accordance with your permit modification request,the Division is forwarding herewith a modification to the subject permit. The chronic toxicity requirement has been replaced with an acute toxicity requirement. Please review the conditions of the modification carefully. Enclosed please find the modified effluent limitation pages. These pages should be inserted into your permit and the old ones discarded. This permit modification is issued pursuant to the requirements of North Carolina General Statute 143-215.1 and the Memorandum of Agreement between North Carolina and the U.S. Environmental Protection Agency dated December 6,1983. Please take notice that this permit is not transferable. Part II,E.4. addresses the requirements to be followed in case of change in ownership or control of this discharge. This permit does not affect the legal requirement to obtain other permits which may be required by the Division of Water Quality or permits required by the Division of Land Resources,Coastal Area Management Act or any other Federal or Local government permit that may be required. If any parts,measurement frequencies or sampling requirements contained in this permit modification are unacceptable to you,you have the right to an adjudicatory hearing upon written request within thirty(30) days following receipt of this letter. This request must be a written petition conforming to chapter 15013 of the North Carolina General Statutes,filed with the Office of Administrative Hearings,Post Office Drawer 27447, Raleigh,North Carolina 27611-7447. Unless such demand is made,this decision shall be final and binding. If you have any questions concerning this permit,please contact Mr.Michael Myers at telephone number (919)733-5083,extension 508. S' cerely err T. Stevens cc: NPDES Permit File Fayetteville Regional Office Aquatic Toxicology Unit 1617 Mail Service Center,Raleigh,North Carolina 27699-1617 Telephone(919)733-5083 FAX(919)733-0719 An Equal Opportunity Affirmative Action Employer VISIT US ON THE INTERNET @ httpJ/h2o.enr.state.nc.us/NPDES A (1). EFFLUENT LIMITATIONS AND MONITORING REQUIREMENTS - FINAL Permit No. NC0086665 During the period beginning on the effective date of the permit and lasting until expiration, the Permittee is authorized to discharge from outfall(s) serial number 001 - Evaporative Cooling Water and Contact Stormwater. Such discharges shall be limited and monitored by the Permittee as specified below: EFFLUENT CHARACTERISTICS DISCHARGE LIMITATIONS MONITORING REQUIREMENTS Monthly Effluent Measurement Sample Sample Average Weekl Avera•e Dail Maximum Frequency Type Location' Flow(MGD) Monthly See Note 1 Effluent Total.Suspended Solids 45.0 mg/L Monthly Grab Effluent Total Residual Chlorine 17µg/L Monthly Grab Effluent Turbidity Monthly Grab Effluent Temperature' Monthly Grab Effluent Oil and Grease3 Monthly Grab Effluent EPA Methods 624/625' Semi-Annually Grab Effluent Acute Toxicity' Variable6 Grab Effluent pH' Monthly Grab Effluent THERE SHALL BE NO DISCHARGE OF FLOATING SOLIDS OR VISIBLE FOAM IN OTHER THAN TRACE AMOUNTS. NOTES: 1 Sample Locations: Effluent shall be defined as a point after combination of the evaporative cooling water and the contact stormwater prior to discharge to the unnamed tributary to Jacob's Creek. Where no measurable discharge occurs,"no discharge"should be clearly noted on the submitted monthly discharge monitoring report. Flow may be monitored in one of the four following ways: a) Measure flow continuously; b) Calculate flow based on the area draining to the outfall,the built upon area,and the total rainfall; c) Estimate by flow measurement at 20 minute intervals during the entire discharge event;or d) Base flow on pump logs. 2 The temperature of the effluent shall not cause the temperature of the receiving stream to increase by more than 2.8 degrees C above natural water temperature, and in no case cause the temperature of the receiving stream to exceed 32 degrees C. 3 Where possible,the grab sample for oil and grease shall be skimmed from the surface of a quiescent zone. 4 After a compliance history associated with 8 to 12 sampling events has been established,the permittee may request relaxation or deletion of this monitoring requirement. 5 Acute Toxicity(Fathead Minnow,24-hour)Monitoring,Episodic;see Condition A(2)of this permit. 6 During the first calendar year of the permit, the testing will be performed upon the first discharge from the facility during each two month period, the periods defined as the months of January-February,March-April,May-June,July-August,September-October,and November-December. 7 The pH shall not be less than 6.0 standard units or greater than 9.0 standard units. ACUTE TOXICITY MONITORING(EPISODIC) The permittee shall conduct acute toxicity tests using protocols defined as definitive in E.P.A. Document EPA/600/4-90/027 entitled"Methods for Measuring the Acute Toxicity of Effluents to Freshwater and Marine Organisms."The monitoring shall be performed as a Fathead Minnow (Pimephales promelas)24 hour static test.Effluent samples for self-monitoring purposes must be obtained below all waste treatment. During the first calendar year of the permit,the testing will be performed upon the first discharge from the facility during each two month period,the periods defined as the months of January-February,March-April,May-June,July-August, September- October,and November-December. After the first calendar year, the permittee will conduct one test annually, with the annual period beginning in January of the next calendar year.The annual test requirement must be performed and reported by June 30. If no discharge occurs by June 30, notification will be made to the Division by this date.Toxicity testing will be performed on the next discharge event for the annual test requirement. The parameter code for this test is TAE6C.All toxicity testing results required as part of this permit condition will be entered on the Effluent Discharge Form(MR-i)for the month in which it was performed,using the appropriate parameter code.Additionally,DWQ Form AT-1 (original)is to be sent to the following address: Attention: North Carolina Division of Water Quality Environmental Sciences Branch 1621 Mail Service Center Raleigh,North Carolina 27699-1621 Completed Aquatic Toxicity Test Forms shall be filed with the Environmental Sciences Branch no later than 30 days after the end of the reporting period for which the report is made. Test data shall be complete and accurate and include all supporting chemical/physical measurements performed in association with the toxicity tests, as well as all dose/response data.Total residual chlorine of the effluent toxicity sample must be measured and reported if chlorine is employed for disinfection of the waste stream. Should there be no discharge of flow from the facility during a period in which toxicity monitoring is required, the permittee will complete the information located at the top of the aquatic toxicity(AT) test form indicating the facility name,permit number,pipe number,county,and the month/year of the report with the notation of"No Flow"in the comment area of the form. The report shall be submitted to the Environmental Sciences Branch at the address cited above. Should any test data from either these monitoring requirements or tests performed by the North Carolina Division of Water Quality indicate potential impacts to the receiving stream, this permit may be re-opened and modified to include alternate monitoring requirements or limits. NOTE: Failure to achieve test conditions as specified in the cited document,such as minimum control organism survival and appropriate environmental controls, shall constitute an invalid test and will require immediate follow-up testing to be completed no later than the last day of the month following the month of the initial monitoring. EAM Fathead 24 Version 9/96 Rockingham Power 86665 /q(4---4- 95 Subject: Rockingham Power 86665 Date:Tue, 15 Aug 2000 09:14:48-0400 From: Kristie Robeson<kristen.robeson@ncmail.net> To:Charles Weaver<Charles.Weaver@ncmail.net>,David.Russell@ncmail.net CC:Matt Matthews <Matt.Matthews@ncmail.net> The facility sent a letter to Tommy dated 8/4 requesting a permit modification changing their tox test type. However, they attached the incorrect tox template to their letter. To avoid further confusion on this one, Charles, I wanted to let you know to still use the tox template that I sent you on August 4th. I have attached here a copy of that language. I hope this permit will soon go away. Thanks for your patience and help. Name:Rockingham PowerLLC.doc Rockingham PowerLLC.doc Type:WINWORD File(application/msword) Encoding:base64 Download Status:Not downloaded with message ivtoJ To-le £ 1 1 of 1 8/15/2000 3:38 PM DIVISION OF WATER QUALITY August 4, 2000 MEMORANDUM TO: Dave Goodrich 111/4 THROUGH: Matt Matthews D (7 b \J [ 1 FROM: Kristie Robeson ri Lu AUG 1 0 2000 �i SUBJECT: Permit Modification Rockingham Power, L.L.C. 1 " _ !Y NPDES Permit No. NC0086665 Pu!N( Rockingham County In a memo dated August 3, 2000, our office requested that this facility's permit be modified to include an acute toxicity test as opposed a chronic toxicity test. Attached to that memo was toxicity test condition language which required the facility to conduct five acute toxicity tests and then one annually thereafter. During further discussions with the facility, ATU and the facility agreed that for the first calendar year the facility should conduct testing during each two-month period and then one time annually thereafter. These two-month periods would be defined as January-February, March-April, May- June, July-August, September-October, and November-December. Both ATU and Rockingham Power felt that toxicity testing conducted in this frequency would produce more meaningful toxicity data based on the nature of this discharge. Please find attached, a copy of the toxicity test language to be included in Rockingham Power's permit modification. Our office appreciates your assistance to undertake the necessary steps to modify the existing permit and incorporate the recommendation cited above. Should you have any questions, please feel free to contact me at 733-2136. Attachment cc: Dave Russell-WSRO Starla Lacy-Rockingham Power LLC Charles Weaver-NPDES Permit Unit ATU Facility Files Central Files 1 ACUTE TOXICITY MONITORING (EPISODIC) The permittee shall conduct acute toxicity tests using protocols defined as definitive in E.P.A. Document EPA/600/4-90/027F entitled"Methods for Measuring the Acute Toxicity of Effluents to Freshwater and Marine Organisms."The monitoring shall be performed as a Fathead Minnow (Pimephales promelas) 24 hour static test. Effluent samples for self-monitoring purposes must be obtained below all waste treatment. During the first calendar year of the permit, the testing will be performed upon the first discharge from the facility during each two-month period, the periods defined as the months of January-February, March-April, May-June,July-August, September-October, and November-December. After the first calendar year, the permittee will conduct one test annually, with the annual period beginning in January of the next calendar year. The annual test requirement must be performed and reported by June 30. If no discharge occurs by June 30,notification will be made to the Division by this date. Toxicity testing will be performed on the next discharge event for the annual test requirement. The parameter code for this test is TAE6C. All toxicity testing results required as part of this permit condition will be entered on the Effluent Discharge Form (MR-1) for the month in which it was performed, using the appropriate parameter code. Additionally, DWQ Form AT-1 (original) is to be sent to the following address: Attention: Environmental Sciences Branch North Carolina Division of Water Quality 1621 Mail Service Center Raleigh, N.C. 27699-1621 Completed Aquatic Toxicity Test Forms shall be filed with the Environmental Sciences Branch no later than 30 days after the end of the reporting period for which the report is made. Test data shall be complete and accurate and include all supporting chemical/physical measurements performed in association with the toxicity tests, as well as all dose/response data. Total residual chlorine of the effluent toxicity sample must be measured and reported if chlorine is employed for disinfection of the waste stream. Should there be no discharge of flow from the facility during a period in which toxicity monitoring is required, the permittee will complete the information located at the top of the aquatic toxicity (AT) test form indicating the facility name, permit number, pipe number,county, and the month/year of the report with the notation of"No Flow" in the comment area of the form. The report shall be submitted to the Environmental Sciences Branch at the address cited above. Should any test data from either these monitoring requirements or tests performed by the North Carolina Division of Water Quality indicate potential impacts to the receiving stream, this permit may be re-opened and modified to include alternate monitoring requirements or limits. NOTE: Failure to achieve test conditions as specified in the cited document, such as minimum control organism survival and appropriate environmental controls, shall constitute an invalid test and will require immediate follow-up testing to be completed no later than the last day of the month following the month of the initial monitoring. -1-r- CiL4,eks GJe.A,veg g_3 HR, L.L.0 RECEIVED P-<- e ) 1V.C. Dent. of 0--/NR ,�,.sJc,ll o AUG - 2 2000 ,, - A.,'S Winston-Salem Salem 1, sgo Regional Office 7A3 0=90)7 c-14-02j61, r7Re s. ,u-e} 79._ /..Oxic_i- r7c,sr- v t.,;,es,----r A A-- / 350 �D� da I!� f'-e s�:� .esources e��kt"� 4,-.•-k �-cu � �/6'11/Kla. e ix04 %N /"" "24144-‘, 1 (J RE: Request for Clarification L' AUG - 4 2000 Rockingham Power, L.L.C., Reidsville, NC NPDES Permit No. NC0086665 L______-- pr_RE't - WATER QUALITY PONT SOU2CE BRANCH Dear Mr. Russell: As discussed with you verbally, Rockingham Power (the Facility) is seeking clarification regarding the Toxicity testing requirement associated with the above referenced NPDES permit. We understand through discussion with you that the Chronic Toxicity requirement may not be appropriate for the facility, given the intermittent nature of its water discharge. You had mentioned that the Acute Toxicity test might be better suited as a requirement for a facility with an intermittent discharge. As well, we understand that the frequency associated with an Acute Toxicity test would be five tests conducted in sequence, switching to an annual requirement, pending satisfactory results. At your direction, the Facility has not collected a discharge sample specifically intended for toxicity testing to date. Therefore, at this time we respectfully request a determination from NCDENR as to the best applicable toxicity test and associated frequency for inclusion into the Facility's NPDES permit, after which we will collect a sample for analysis. Please do not hesitate to contact me at (713) 767-8961 or Barbara Irwin at (217) 872- 2363 if you have any questions. Yours truly, Iti op it ii / .0 Starla Lacy Environmental Specialist Cc: Barbara Irwin DIVISION OF WATER QUALITY August 3, 2000 MEMORANDUM TO: Dave Goodrich THROUGH: Matt Matthews I'r I ---__--_--.-- 1 �; FROM: Kristie Robeson I(•i/ AUG - 7 2000 1__ SUBJECT: Permit Modification 1 DtNR - WAIN ;q,i.!TY Rockingham Power,L.L.C. F,U, .4T F. NPDES Permit No. NC0086665 Rockingham County By cover letter dated November 19, 1999 the subject facility was issued NPDES Permit No. NC0086665 with an effective date of January 1, 2000, and expiration date of April 30, 2002. Upon discussions with the Winston-Salem Regional Office and the facility, we were informed that the toxicity test in this permit is inappropriate for this type discharge. This facility is permitted for a chronic toxicity test at 90%. Personnel from the facility and WSRO informed our unit that this discharge is intermittent.Therefore,the chronic test which requires collection of two samples would be impossible to conduct. Based on the nature of this discharge, our office recommends that this permit be modified to include a 24 hour LC50 acute monitoring requirement. The test organism should be fathead minnow and the testing frequency should be for the facility to conduct five toxicity tests during the first five discrete discharge events and then once annually thereafter. The facility and WSRO concur with our recommendation. Please find attached a copy of the correct toxicity language to include in this permit modification. Our office appreciates your assistance to undertake the necessary steps to modify the existing permit and incorporate the recommendation cited above. Should you have any questions,please feel free to contact me at 733-2136. Attachment cc: Dave Russell-WSRO Starla Lacy-Rockingham Power LLC gibarjoiameimembiamoppefflemttr,, ATU Facility Files Central Files ACUTE TOXICITY MONITORING (EPISODIC) The permittee shall conduct FIVE acute toxicity tests using protocols defined as definitive in E.P.A. Document EPA/600/4-90/027 entitled"Methods for Measuring the Acute Toxicity of Effluents to Freshwater and Marine Organisms."The monitoring shall be performed as a Fathead Minnow (Pimephales promelas)24 hour static test. Effluent samples for self-monitoring purposes must be obtained below all waste treatment. Sampling and subsequent testing will occur during the first five discrete discharge events after the effective date of this permit. After monitoring of the first five toxicity tests, the permittee will conduct one test annually, with the annual period beginning in January of the next calendar year.The annual test requirement must be performed and reported by June 30. If no discharge occurs by June 30,notification will be made to the Division by this date.Toxicity testing will be performed on the next discharge event for the annual test requirement. The parameter code for this test is TAE6C. All toxicity testing results required as part of this permit condition will be entered on the Effluent Discharge Form (MR-1) for the month in which it was performed, using the appropriate parameter code. Additionally,DWQ Form AT-1 (original) is to be sent to the following address: Attention: Environmental Sciences Branch North Carolina Division of Water Quality • 1621 Mail Service Center Raleigh, N.C. 27699-1621 Test data shall be complete and accurate and include all supporting chemical/physical measurements performed in association with the toxicity tests, as well as all dose/response data. Total residual chlorine of the effluent toxicity sample must be measured and reported if chlorine is employed for disinfection of the waste stream. Should any test data from either these monitoring requirements or tests performed by the North Carolina Division of Water Quality indicate potential impacts to the receiving stream, this permit may be re-opened and modified to include alternate monitoring requirements or limits. NOTE: Failure to achieve test conditions as specified in the cited document, such as minimum control organism survival and appropriate environmental controls, shall constitute an invalid test and will require immediate follow-up testing to be completed no later than the last day of the month following the month of the initial monitoring. EAM Fathead 24 Version 9/96 • -AUG-•08-2000 TUE 10:55 AM FAX NO. P. 01 State of North Carolina Department of Environment and Natural Resources Alr*:101;•:VA Division of Water Quality James B. Hunt, Jr., Governor DENR p R Bill Holman, Secretary E i V Kerr T. Stevens, Director Division of Water Quality Environmental Sciences Branch & Wetlands/401 Unit Location: 4401 Reedy Creek Rood Raleigh, N.C. 27607 Mailing Address: 1021 Mail Service Center Raleigh, NC. 27699 FAX: (919) 733-9959 FAX TO: _ 0._ - FAX NUMBER: r-- FROM:� PHONE: NO. OF PAGES INCLUDING THIS SHEET: 3 L 40-1 ' C l pLA0-/ 'te 0.,%"_./YVIAPjjA8 If you receive this fax by mistake call: ESB (919) 733-9960 or Wetlands (919) 733-1786. • • AUG-08-2000 TUE 1.0:55 AM FAX NO P. 02 DIVISION OF WATER QUALITY August 4,2000 MEMORANQU, TO: Dave Goodrich THROUGH: Malt Matthews (1" FROM: Kristie Robeson SUBJECT: Permit Modification Rockingham Power,L.L.C. NPDES Permit No.NC0086665 Rockingham County In a memo dated August 3,2000,our office requested that this facility's permit be modified to include an acute toxicity test as opposed a chronic toxicity test. Attached to that memo was toxicity test condition language which required the facility to conduct five acute toxicity tests and then one annually thereafter. During further discussions with the facility, ATU and the facility agreed that for the first calendar year the facility should conduct testing during each two-month period and then one time annually thereafter. These two-month periods would be defined as January-February, March-April, May- June, July-August, September-October, and November-December, Both ATU and Rockingham Power felt that toxicity testing conducted In this frequency would produce more meaningful toxicity data based on the nature of this discharge. Please find attached, a copy of the toxicity test language to be included in Rockingham Power's permit modification. Our office appreciates your assistance to undertake the necessary steps to modify the existing permit and incorporate the recommendation cited above. Should you have any questions,please feel free to contact me at 733-2136. Attachment cc: Dave Russell-WSRO Starla Lacy-Rockingham Power LLC Charles Weaver-NPDES Permit Unit ATU Facility Piles CCnlral Files ' AUCr'08-2000 TUE 10:56 AM FAX NO. P. 03 ACUTE TOXICITY MONITORING (EPISODIC) The permittee shall conduct acute toxicity tests using protocols defined as definitive in E.P.A. Document RPA/600/4-90/027F entitled"Methods for Measuring the Acute Toxicity of Effluents to Freshwater and Marine Organisms."The monitoring shall be performed as a Fathead Minnow (Pimephales promelas)24 hour static test. Effluent samples for self-monitoring puiposes must be obtained below all waste treatment.During the first calendar year of the permit,the testing will he performed upon the first discharge from the facility during each two-month period,the periods defined as the months of January-February, March-April,May-June,July-August, September-October, and November-December.After the first calendar year, the permittee will conduct one test annually,with the annual period beginning in January of the next calendar year. The annual test requirement must be performed and reported by June 30.If no discharge occurs by June 30,notification will be made to the Division by this date,Toxicity testing will be performed on the next discharge event for the annual test requirement, The parameter code for this test is TAE6C.All toxicity testing results required as part of this permit condition will he entered on the Effluent Discharge Form (MR-1) for the month in which it was performed, using the appropriate parameter code. Additionally,DWQ Form AT-1 (original)is to be sent to the following address: Attention: Environmental Sciences Branch North Carolina Division of Water Quality 1621 Mail Service Center Raleigh,N.C.27699-1621 Completed Aquatic Toxicity Test Forms shall be filed with the Environmental Sciences Branch no later than 30 days after the end of the reporting period for which the report is made. Test data shall be complete and accurate and include all supporting chemical/physical measurements performed in association with the toxicity tests,us well as all dose/response data. Total residual chlorine of the effluent toxicity sample must be measured and reported if chlorine is employed for disinfection of the waste stream. Should there be no discharge of flow from the facility during a period in which toxicity monitoring is required, the permittee will complete the information located at the top of the aquatic toxicity (AT)test form indicating the facility name,permit number,pipe number,county, and the month/year of the report with the notation of"No Flow"in the comment arca of the form. The report shall be submitted to the Environmental Sciences Branch at the address cited above. Should any test data from either these monitoring requirements or tests performed by the North Carolina Division of Water Quality indicate potential impacts to the receiving stream,this permit may be re-opened and modified to include alternate monitoring requirements or limits. NOTE: Failure to achieve test conditions as specified in the cited document, such as minimum control organism survival and appropriate environmental controls,shall constitute an invalid test and will require immediate follow-up testing to be completed no later than the lust day of the month following the month of the initial monitoring.