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Home My WebLink AboutNC0005177_Permit (Modification)_19970617 NPDE S DOCUWENT SCANNING COVER SHEET NPDES Permit: NC0005177 FM C Lithium Document Type: Permit Issuance Wasteload Allocation Authorization to Construct (AtC) Iermit Modification Speculative Limits Staff Report Instream Assessment (67B) Environmental Assessment (EA) Permit History Document Date: June 17, 1997 Tlzira docume-XKt ins pr1rit4--d on X4D'MWe pa04er—i@Pzore array coat bT%t 403M the resr4BrBe aide r � ` = State of North Carolina Department of Environment, Health and Natural Resources • Division of Water QualityA&40 .,V James B. Hunt, Jr., Governor Jonathan B. Howes, Secretary F= N:� A. Preston Howard, Jr., P.E., Director June 17, 1997 Ms. Barbara E. Ritchie, Environmental Manager r 11t`tco FMC Corporation, Lithium Division P.O. Box 795 Bessemer City, North Carolina 28016 Subject: NPDES Permit Modification NPDES No. NCO005177 FMC Corp., Lithium Division Gaston County Dear Ms. Ritchie: FMC Lithium contacted the Division on April 24, 1997, and informed us that errors were made on the recently issued subject NPDES permit. Enclosed please find the modified effluent limitations/monitoring.requirements pages for outfall 001. These pages should be inserted into your permit, replacing the old effluent pages, which should be 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, The following items are in response to FMC's April 24, 1997 letter. Please refer to the appropriately numbered item in your comment letter. 1) The NC0005177 permit now covers discharges from outfall 004. Therefore, the stormwater permit NCS000002 which previously covered stormwater discharges has been rescinded. By copy of this letter I am notifying other units of this action. 2) FMC confirms the Division's understanding that flow from the R & D pond will only be directed to outfall 004 when necessary to avert overflowing the pond. 3) The Aquatic Survey and Toxicology Unit confirms that for consistency with other permits throughout the state, all WET tests shall be conducted at the dilution factor which corresponds to the greatest possible flow from the facility. Due to the uniqueness of FMC's permit, the Division inadvertently allowed dilution factors that varied with flow into the permit. The Division intends to correct this problem with the next renewal of this permit. 4) As stated in the Division's issuance letter of March 31, 1997, the monitoring frequencies for copper and zinc should have been reduced to quarterly and for chromium should have been reduced to annually. This has been reflected in the new effluent sheets for outfall 001. 5) Effluent monitoring for chlorides was added to the permit to determine the level of chlorides P.O. Box 29535, Raleigh, North Carolina 27626-0535 Telephone 919-733-5083 FAX 919-733-0719 An Equal Opportunity Affirmative Action Employer 50% recycled/ 10%post-consumer paper 4 being discharged from outfall 001 where these constituents are of primary concern. Based on the results of monitoring for this parameter it can be determined whether a reasonable potential to impact water exists. Since there are no additional flows after outfall 001 and prior to the downstream sampling point, sampling for chlorides at the downstream point can be eliminated. This has been reflected in the new effluent sheets for outfall 001. 6) The Division notes that a Biocide Worksheet for Biosperse 250 will be completed and submitted. If you have any questions or need additional information, please contact Steven Pellei, telephone number 919/733-5083, extension 516. Sincerely, ' t r "V 7� (Cf-Z4- �' A. Preston Howard, Jr., P.E. Enclosures cc: Central Files Mooresville Regional Office,Water Quality Budget - Ms. Fran McPherson Compliance - Mr. Robert Farmer Stormwater Unit - Bradley Bennett Permits and Engineering Unit Mr. Roosevelt Childress, EPA 1 A. EFFLUENT LIMITATIONS AND MONITORING REQUIREMENTS FINAL Permit No. NC0005177 � During the period beginning on the effective date of the permit and when flow occurs that is less than or equal to 0.615 MGD and lasting until expiration, the Permittee is authorized to discharge from outfall(s) serial number 001. Such discharges shall be limited and monitored by the Permittee as specified below: EFFLUENT CHARACIENIST.iCS D15.CHARGE LIMITATIONS:: MONITORING REpUIREMENTS Monthly Weekly Daily measurement" Sample Sample ;.AVera' a Mai mum. Fie.. uenC .. T :e Location' Flow 0.615 MGD Continuous Recording I or E BOD, 5 day, 200C 30.0 mg/1 45.0 m /I Monthly Grab E Total Suspended Residue 333.9 lbs/day 1001.7 lbs/da 2 / Month Grab E, D Dissolved Oxygen2 Weekly Grab E H3 Weekly Grab E NH3-N Monthly Grab E Chlorides Monthly Grab E Chromium Annually Grab E Copper Quarterly Grab E Zinc Quarterly Grab E Total Nitrogen Quarterly Grab E Total Phosphorus Quarterly Grab E Chronic Toxicit ° Quarterly Grab E Conductivity Weekly Grab E, D Notes: Sample locations: E - Effluent, I - Influent, D - Immediately downstream of the confluence of outfalls 001 and 004. 2 The daily average dissolved oxygen concentration shall not be less than 5.0 mg/l. 3 The pH shall not be less than 6.0 standard units nor greater than 9.0 standard units. 4 Chronic Toxicity (Ceriodaphnia) P/F at 78%; January, April,July, October; See Part I, Special Condition E (1)of this permit. There shall be no discharge of floating solids or visible foam in other than trace amounts. 3 I A EFFLUENT LIMITATIONS AND MONITORING REQUIREMENTS FINAL Permit No. NCO005177 During the period beginning on the effective dale of the permit and when flow occurs that is greater than 0.615 MGD and less than or equal to 0.700 MGD and lasting until expiration, the Permittee is authorized to discharge from outiall(s) serial number 001. Such discharges shall be limited and monitored by the Permillee as specified below: :EFFLUENT CHARACTERISTICS DISCHARGE LIMITATIONS' MONITORING REQUIREMENTS M6nthly Weekly Daly Measurement; Sa1np a Sample .. ... . `. .. . aium r . aAr Location' Flow 0.700 MGD Continuous Recording I or E BOD, 5 day, 20°C 26.0 mqll 39.0 m /I Monthly Grab E Total Suspended Residue 333.9 lbs/day 1001.7 Ibs/da 2 / Month Grab E, D Dissolved Oxygen2 Weekly Grab E H3 Weekly Grab E NH3-N Monthly Grab E Chlorides Monthly Grab E Chromium Annually Grab E Copper Quarterly Grab E Zinc Quarterly Grab E Total Nitrogen Quarterly Grab E Total Phosphorus Quarterly Grab E Chronic Toxicit 4 Quarterly Grab E Conductivity Weekly Grab E, D Notes: ' Sample locations: E - Effluent, I - Influent, D - Immediately downstream of the confluence of oulfalls 001 and 004. 2 The daily average dissolved oxygen concentration shall not be less than 5.0 mg/l. 3 The pH shall not be less than 6.0 standard units nor greater than 9.0 standard units. 4 Chronic Toxicity (Ceriodaphnia) P/F at 80%; January, April, July, October; See Part 1, Special Condition E (2)of this permit. There shall be no discharge of floating solids or visible foam in other than trace amounts. s ,�' I A. EFFLUENT LIMITATIONS AND MONITORING REQUIREMENTS FINAL Permit No. NCO005177 During the period beginning on the effective date of the permit and when flow occurs that is greater than 0.700 MGD and less than or equal to 0.800 MGD and lasting until expiration, the Permittee is authorized to discharge from outfall(s) serial number 001. Such discharges shall be limited and monitored by the Permittee as specified below: EFFLUENT. CHARACTERISTICS,..;,'` DISCHARGE LIMITATIONS MONITORING REQUIREMENTS Monthly Weekly Daily Measurement., Sample Sample ....:. .. ::: ...... »Av,era a .;>. ....... Vera e.... .:.;::Maximumuenc T. e:<: .....:: .. ....:�.'ocatfon� ...'.:: Flow 0.800 MGD Continuous Recording I or E BOD, 5 day, 200C 23.0 m /l 34.5 m /I Monthly Grab E Total Suspended Residue 333.9 lbs/day 1001.7 Ibs/da 2 / Month Grab E, D Dissolved Oxygen2 Weekly Grab E H3 Weekly Grab E NI-113-N Monthly Grab E Chlorides Monthly Grab E Chromium Annually Grab E Copper Quarterly Grab E Zinc Quarterly Grab E Total Nitrogen Quarterly Grab E Total Phosphorus Quarterly Grab E Chronic Toxicit 4 Quarterly Grab E Conductivity Weekly Grab E, D Notes: Sample locations: E - Effluent, 1 - Influent, D - Immediately downstream of the confluence of outfails 001 and 004. 2 The daily average dissolved oxygen concentration shall not be less than 5.0 mg/l. 3 The pH shall not be less than 6.0 standard units nor greater than 9.0 standard units. 4 Chronic Toxicity (Ceriodaphnia) P/F a1 82%; January, April, July, October; See Part !, Special Condition E (3) of this permit. There shall be no discharge of floating solids or visible foam in other than trace amounts. �5 t'- A, EFFLUENT LIMITATIONS AND MONITORING REOUIREMENTS FINAL Permit No. NCO005177 • During the period beginning on the effective date of the permit and when flow occurs that is greater than 0.800 MGD and less than or equal to 0.90i1 MGD and lasting until expiration, the Permittee is authorized to discharge from outfall(s) serial number 001. Such discharges shall be limited and .monitored by the Permittee as specified below: .... . .... . . . . . .. EFFLUENT 'CHARACTERISTICS DISCHARGE LIMITATIONS MONITORING >REGQUIREMENTS Monthly . Weekly Daily Measuremnt Sample Sarnpfe MaxiE7ium .. :. ::Fre: uenc Avera a T:. a :Locatron':: . Flow 0.900 MGD Continuous Recording I or E BOD, 5 day, 20'C 20.5 m II 30.8 m Il Monthly Grab E Total Suspended Residue 333.9 lbs/day 1001.7 lbs/da 2 / Month Grab E, D Dissolved Oxyqen2 Weekly Grab E H3 Weekly Grab E NH3-N Monthly Grab E Chlorides Monthly Grab E Chromium nnually Grab E Copper Quarterly Grab E Zinc Quarterly Grab E Total Nitrogen Quarterly Grata E Total Phosphorus Ouarterly Grab E Chronic TOxiCit " Quarterl Grab E Conductivity We Grab E, D Notes: Sample locations: E -'Effluent, I - Influent, D - Immediately downstream of the confluence of outfalls 001 and 004. 2 The daily average dissolved oxygen concentration shall not be less than 5.0 mg/I. 3 The pH shall not be less than 6.0 standard units nor greater than 9.0 standard units. 4 Chronic Toxicity (Ceriodaphnia) PIF at 84%; January, April, July, October; See Part I, Special Condition E (4) of this permit. There shall be no discharge of floatingsolids or visible foam in other than trace amounts.