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Home My WebLink AboutNC0000892_NC NOV-2024-TX-0065_20241010 Docusign Envelope ID:8C06E507-4416-4AFD-B9AA-25F719F5CB5F Mc STATE, ti n ROY COOPER } Governor u` 0 MARY PENNY KELLEY ` �� a� Secretary �p+N+^pD'* RICHARD E.ROGERS,JR. NORTH CAROLINA Director Environmental Quality October 10,2024 CERTIFIED MAIL: 70112000 0002 3103 1407 RETURN RECEIPT REQUESTED Daniel Cox Arclin USA Inc 790 Corinth Rd Moncure,NC 27559 SUBJECT: NOTICE OF VIOLATION:NC NOV-2024-TX-0065 Whole Effluent Toxicity(WET)Testing NPDES Permit No.NC0000892/001 Arclin USA,Inc Chatham County Dear Permittee: This is to inform you that a review of your chronic toxicity self-monitoring report forms for July 2024 indicates a violation of the toxicity limitation specified in your NPDES Permit. You should take whatever remedial actions are necessary to eliminate the conditions causing the effluent toxicity violation(s).Your efforts may include conducting a Toxicity Reduction Evaluation(TRE),a site-specific study designed to identify the causative agents of effluent toxicity,isolating the sources of toxicity,evaluating the effectiveness of toxicity control options,and confirming reductions in effluent toxicity.Please be aware that North Carolina General Statutes provide for assessment of civil penalties for violations of NPDES permit limitations and requirements. The reverse side of this Notice contains important information concerning your Whole Effluent Toxicity Monitoring and Reporting Requirements. We encourage you to review this information;if it would be helpful to discuss this situation or possible solutions to resolve effluent toxicity noncompliance,please contact Molly Nicholson at 919- 743-8424 or molly.nicholson@deq.nc.gov. Sincerely, DocuSigned by: c c3&kk� 2211 FE45EB27436... Chris Johnson,Environmental Program Manager Division of Water Resources,NCDEQ Attachment cc: Chris Lamm(via email:Chris.Lamm@arclin.com) NCDEQ Raleigh Regional Office ATB Enforcement File&Laserfiche DEQNorth �� Carolina Department of Environmental Quality 1 Division of Water Resources I Water Sciences Section 4401 and 4405 Reedy Creek Road 1 1621 Mail Service Center I Raleigh,North Carolina 27699-1621 NOHiH CAROIMA u+��+a�+� •o••� �� 919.743.8400 Docusign Envelope ID:8C06E507-4416-4AFD-B9AA-25F719F5CB5F WHOLE EFFLUENT TOXICITY MONITORING AND REPORTING INFORMATION The following items are provided in an effort to assist you with identifying critical and sometimes overlooked toxicity testing and reporting information. Please take time to review this information.The items below do not address or include all the toxicity testing and reporting requirements contained in your NPDES permit. If you should have any questions about your toxicity testing requirement,please contact Molly Nicholson with the Aquatic Toxicology Branch at(919)743-8424 or Cindy Moore at(919) 743-8422. ➢ DATA SUBMITTAL: The permittee is responsible for ensuring that toxicity testing is conducted according to the permit requirement and that toxicity report forms are appropriately filed. ➢ The reporting of whole effluent toxicity testing data is a dual requirement. ➢ 1)All toxicity test results must be entered(with the appropriate parameter code)on your monthly Electronic Discharge Monitoring Report(eDMR)and, ➢ 2)Your Toxicity test data("AT"form)must be submitted to the Aquatic Toxicity Branch via: Email to: ATForms.ATB@deq.nc.gov --OR-- North Carolina Division of Water Resources Water Sciences Section/Aquatic Toxicity Branch 1621 Mail Service Center Raleigh,North Carolina 27699-1621 • Toxicity test results shall be filed with the Water Sciences Section no later than 30 days after the end of the reporting ep riod(eg,January test result is due by the end of February). • To determine if your AT test forms were received on time by the Division of Water Resources,you y consider submitting ,your toxicity test results certified mail,return receipt requested to the Water Sciences Section or email to the above address, receiving e-confirmation. • The Aquatic Toxicity Test forms shall be signed by the facility's Operator in Responsible Charge(ORC)except for facilities which have not received a facility classification. In these cases,a duly authorized facility representative must sign the AT form. The AT form must also be signed by the performing lab supervisor. ➢ FAILED TESTS: • Toxicity test condition language contained in your NPDES permit may require use of multiple concentration toxicity testing upon failure of any single quarterly toxicity test. If the initial pass/fail test fails or if the chronic value is lower than the permit limit,then at least two multiple concentration toxicity tests(one per month)will be conducted over the following two months. As many analyses as can be completed will be accepted. If your NPDES permit does not require use of multiple concentration toxicity testing upon failure of any single quarterly test,you may choose to conduct either single concentration toxicity testing or multiple concentration toxicity testing per the Division's WET enforcement initiatives effective July 1,1999. Follow-up multiple concentration toxicity testing will influence the Division's enforcement response. ➢ INVALID TESTS: • If you receive notification from your contract laboratory that a test was invalidated,you should immediately notify the Water Sciences Section at(919)743-8400 and provide written documentation indicating why the test was invalidated and the date when follow-up testing will occur. ➢ TESTING MONTHS: • Toxicity testing months are specified by the NPDES Permit,except for NPDES Permits which contain episodic toxicity monitoring requirements(eg,if the testing months specified in your NPDES permit are March,June,September,and December,then toxicity testing must be conducted during these months). ➢ EPISODIC MONTIORING: • If your NPDES Permit specifies episodic monitoring and your facility does not have a discharge from January 1-June 30,then you must provide written notification to the Water Sciences Section by June 30 that a discharge did not occur during the first six months of the calendar year. ➢ NO DISCHARGE: ➢ If your facility is required to conduct toxicity testing during a month in which no discharge occurs,you should complete the information block located at the top of the AT form indicating the facility name,permit number,pipe number,county and the month/year of the subject report. You should also write"No Flow"on the AT form,sign the form and submit following normal procedures. E Q�� North Carolina Department of Environmental Quality I Division of Water Resources I Water Sciences Section _ 4401 and 4405 Reedy Creek Road 1 1621 Mail Service Center I Raleigh,North Carolina 27699-1621 NORTH CAROLINA °eo+�0�11 0_1;\ /_ 919.743.8400