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Home My WebLink AboutNC0004979_Permit Modification Correction_20010425t of W A rFR _ �Cl) � o �c ®*A NWENR- Ms. Angela M. Grooms Manager, Water Protection Duke Power 13339 Hagers Ferry Road Huntersville, North Carolina 28078.7929 Dear Ms. Grooms: Michael F. Easley Governor William G. Ross, Jr., Secretary North Carolina Department of Environment and Natural Resources Kerr T. Stevens, Director Division of Water Quality April 25, 2001 Subject: NPDES Permit Modification Correction Yard Sump Overflows AllEiiSteam Station--NC0004979- 1 Riverbend Steam Station — NC0004961 Dan River Steam Station — NC0003468 Polk County On May 15, 2000, the Division issued permit modifications to several Duke Power facilities establishing conditions under which the discharge of sump overflows is authoriz!d. Three of the modifications contained errors. The attached permit pages correct the errors identified in your correspondence. Please find enclosed the corrected permit pages. The corrected pages should be inserted into the respective permit and the old pages discarded. All other terms and conditions contained in the original permit remain unchanged and in full effect. This permit correction is issued under the requirements of North Carolina General Statutes 143215.1 and the Memorandum of Agreement between North Carolina and the U.S. Environmental Protection Agency. 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 writen request within thirty (30) days following receipt of this letter. This request must be a written petition conforming to Chapter 150B of the North Carolina General Statutes, filed with the Office of Administrative Hearings (6714 Mail Service Center, Rdeigh, North Carolina 27699-6714). Unless such demand is made, this decision shall be final and binding. If you have any questions concerning this permit modification, please contact Dave Goodrich at (919) 7335083, extension 517. Sincerely, err T. Stevens _ cc: Central Files Mooresville Regional Office, Water Quality Section '.NPDES _Unit--->> 1617 MAIL SERVICE CENTER, RALEIGH, NORTH CAROLINA 27699-1617 - TELEPHONE 919-733-5083/FAX 919-733-0719 AN EQUAL OPPORTUNITY AFFIRMATIVE ACTION EMPLOYER - 50% RECYCLED/ 10% POST -CONSUMER PAPER VISIT US ON THE INTERNET AT http://h2o.enf.state.nc.Us/NPDES A (4). EFFLUENT LIMITATIONS AND MONITORING REQUIREMENTS - DRAFT Permit No. NC0004979 . 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 002B — Power House Sump Overflows. Such discharges shall be limited and monitored by the Permittee as specified below: EFFLUENT CHARACTERISTICS DISCHARGE LIMITATIONS MONITORING REQUIREMENTS 4.=i?' 13� -' Mon t4ly Average Daily Maximum ,.a Measurement Samp le ' Frequency' ' Sample Type `Y ;Locatlonl gat Flow (BGD) Episodic Estimate ;i E pH Episodic Grab E Total Suspended Solids Episodic Grab E Iron See Footnote 2 Grab E THERE SHALL BE NO DISCHARGE OF FLOATING SOLIDS OR VISIBLE FOAM IN OTHER THAN TRACE AMOUNTS. ALL FLOWS WILL BE REPORTED ON MONTHLY MRS. SHOULD NO FLOW OCCUR DURING A GIVEN MONTH, THE WORDS "NO FLOW" SHALL BE CLEARLY WRITTEN ON THE FRONT OF THE DMR. EPISODIC SAMPLING IS REQUIRED PER OCCURRENCE WHEN SUNIP OVERFLOWS OCCUR FLOR LONGER TI4AN ONE HOUR. ALL SAMPLES SHALL BE OF A REPRESENTATIVE DISCHARGE. NOTES: 1 : Sample Locations: E — Effluent; Effluent sampling shall be conducted at a point upstream of discharge to the receiving stream.. 2 Sampling for iron is required when TSS is reported as greater than 100 mg/L. -Duke alk Power. A Duke Energy Company July 26, 2000 Mr. David A. Goodrich NCDENR/NPDES Unit Water Quality Section 1617 Mail Service Center Raleigh, NC 27699-1617 Subject: Permitting Sump Overflow Pipes Plant Allen Permit No. NC0004979 Dan River Steam Station Permit No. NC0003468 Riverbend Steam Station Permit No. NC0004961 Record #: NC -005157 Certified: 7099 3400 0003 7612 5802 Dear Mr. Goodrich: Duke Power Group Environment, Health & Safety MG03A5 13339 Hagers Ferry Road Huntersville, NC 28078-7929 JUL 3 1 2000 DENR - WATER QUALITY POINT SOURCE BRANCH NPDES permit modifications to the above listed stations were granted per your May 15, 2000, letter. After reviewing the modified permit pages a number of minor errors were noted. Duke Power requests the permit pages be updated with the changes listed below. Please see attached copies with marked corrections. Allen Steam Station Permit No. NC0004979 • The Power House Sump Overflow outfall serial number should be listed as 002B not as 002A. • On the same outfall page (#002B) Fecal Coliform monitoring is required for overflows lasting for more than one hour. Duke Power requests the Fecal Coliform monitoring be removed as no sanitary waste goes to the Power House sump. Riverbend Steam Station Permit No. NCb004961 • On yard sump overflows outfall,serial number 002A the permit number is listed incorrectly. The permit number should be No. NC0004961. Dan River Steam Station Permit No. NC0003468 • On the Supplement to Effluent Limitations and Monitoring Requirements, conditions A(20), A(21) and A(22) from the original permit page were omitted on the new permit page. Should you have questions or need additional information, please contact John Mease at (704) 875-5347. Sincerely, Agt_ AL ' Angela M. Grooms Manager, Water Protection jrm cc: Mr. Rex Gleason, NCDENR, Mooresville, N.C. Mr. Larry Coble, NCDENR, Winston-Salem, N.C. A (4). EFFLUENT LIMITATIONS AND MONITORING REQUIREMENTS - FINAL Permit No. NC0004979 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's - Power House Sump Overflows. Such discharges shall be limited and monitored by the Permittee as specified below: EFFLUENT CHARACTERISTICS DISCHARGE LIMITATIONS MONITORING REQUIREMENTS Monthly Average Daily Maximum Measurement Sample Frequency Sample Type Location I Flow (MGD) Episodic Estimate E pH Episodic Grab E Total Suspended Solids Episodic Grab E -Fet�rl-C-Qlifa�m —Y --E— Iron See Footnote 2 Grab E THERE SHALL BE NO DISCHARGE OF FLOATING SOLIDS OR VISIBLE FOAM IN OTHER THAN TRACE AMOUNTS. ALL FLOWS WILL BE REPORTED ON MONTHLY DMRS. SHOULD NO FLOW OCCUR DURING A GIVEN ,NIONTH, THE WORDS "NQ FLOW" SHOULD BE CLEARLY WRITTEN ON THE FRONT OF THE DN1R. EPISODIC SAMPLING IS REQUIRED PER OCCURRENCE WHEN SUMP OVERFLOWS OCCUR FOR LONGER THAN ONE HOUR. ALL SAMPLES SHALL BE OF A REPRESENTATIVE DISCHARGE. NOTES: I Sample Locations: E - Effluent; Effluent sampling shall be conducted at a point upstream of discharge to the receiving stream. 2 Sampling for iron is required when TSS is reported as greater than 100 mg/L. 1 S i