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HomeMy WebLinkAboutNCS000386_COMPLIANCE_20140815STORMWATER DIVISION CODING SHEET PERMIT NO. pw DOC TYPE ❑FINAL PERMIT ❑ MONITORING INFO ❑ APPLICATION f� COMPLIANCE ❑ OTHER DOC DATE p6 l �J YYYYMMDD DiVISfOfd q,= oaf, r;R 0UAL ITY AUG 19 2014 PWOO ZESVILE F-G;Ur4AL OFFICE Mr. Michael Parker NC DWQ Mooresville Regional Office Suite 301 610 East Center Avenue Mooresville, NC 28115 -00 • August 15, 2014 Re: Rohm and Chemicals, L.L.C., A Wholly Owned Subsidiary of the Dow Chemical Company, Charlotte Site, NCDENR Permit NCS000386 Dear Mr. Parker: Results of analytical sampling of our storm water outfall designated SDO-001 have exceeded the benchmark value for Zinc as outlined in our permit on more than four occasions during the course of the permit. This letter is to inform you of this issue. We continue to investigate the possible sources of Zinc into SDO-001 per the Tiered response requirements in the permit. If you need any further information, please feel free to call me or Jamie Watts at 704-596-3021, Ext. 3050. incere ly,, Matthew Church Site Leader cc: Stormwater Pollution Prevention Plan 6101 Orr Road ♦ Charlotte, North Carolina 28213 ♦ 704-596-3021 ♦ Fax 704-598-0909 14 l ~I', AUG9 20 14C UeN { ow _ A.ictfer �>soir�c:►���i D oW August 15, 2014 Mr. Andrew Pitner NC DWQ Mooresville Regional Office Suite 301 610 East Center Avenue Mooresville, NC 28115 Re: Rohm and Chemicals, L.L.C., A Wholly Owned Subsidiary of the Dow Chemical Company, Charlotte Site, NCDENR Permit NCS000386 Dear Mr. Pitner: Results of analytical sampling of our storm water outfall designated SDO-001 have exceeded the benchmark value for Zinc as outlined in our permit on more than four occasions during the course of the permit. This letter is to inform you of this issue. We continue to investigate the possible sources of Zinc into SDO-001 per the Tiered response requirements in the permit. If you need any further information, please feel free to call me or Jamie Watts at 704-596-3021, Ext. 3050. .ncerely, Matthew Church Site Leader cc: Stormwater Pollution Prevention Plan 6101 Orr Road ♦ Charlotte, North Carolina 28213 ♦ 704-596-3021 4 Fax 704-598-0909 RECEIVED DIVISION OF WATER QUALITY DEC ' 7 2011 SWP SECTION MOORESVILLE REGIONAL OFFICE Mr. Rob Krebs NC DWQ Mooresville Regional Office Suite 301 610 East Center Avenue Mooresville, NC 28115 December 2, 2011 Re: Rohm and Chemicals, L.L.C., A Wholly Owned Subsidiary of the Dow Chemical Company, Charlotte Site, NCDENR Permit NCS000386 Dear Mr. Krebs: Results of analytical sampling of our storm water outfall designated SDO002 have exceeded the benchmark value for Zinc as outlined in our permit on more than four occasions. This letter is to inform you of this issue as required in the permit. We are continuing to investigate the possible sources of Zinc into SDO002. Actions to date include completion of a site sampling plan to eliminate potential sources, comparison of results to production records to look for correlation and modification of maintenance activities such that the activities do not cause Zinc to be present in the storm water at unacceptable levels. Following these activities, two consecutive sample results of SDO002 indicated results below the benchmark values for Zinc, leading us to believe we had resolved the issue. However, subsequent results from SDO002 have exceeded the benchmark value. Additional investigative inspections have been performed, and more corrective actions are planned to eliminate potential causes. We will continue to sample our storm water outfalls monthly as required by the Tier Two program in the permit until three consecutive sample results are below benchmark values. If you need any further information, please feel free to call me or Jamie Watts at 704-596-3021. Sincerely, Nick D. Gipson Site Leader cc: Stormwater Pollution Prevention Plan DOW CONFIDENTIAL - Do not share without permission 6101 Orr Road ♦ Charlotte, North Carolina 28213 ♦ 704-596-3021 ♦ Fax 704-598-0909 NC®ENR North Carolina Department of Environment and Natural Resources Division of Water Quality Beverly Eaves Perdue Coleen H. Sullins Dee Freeman Governor Director Secretary July 9, 2010 Alanna Smith, EH&S Delivery Technician 6101 Orr Road Charlotte, NC 28213 Subject: Compliance Evaluation Inspection Rohm and Haas Chemical 6101 Orr Road NPDES Individual Stormwater Permit NCS000386 Mecklenburg County Dear Ms. Smith: On April 19, 2010, Jeff Mitchell from Charlotte -Mecklenburg Stormwater Services (CMSWS), conducted a site inspection of the Rohm and Haas Chemical facility located at 6101 Orr Road in Charlotte, Mecklenburg County, North Carolina. The site drains to Briar Creek, Class C waters located in the Catawba River Basin, The site visit and file review revealed that the subject facility is covered by NPDES Individual Stormwater permit NCS000386. This inspection was conducted as part of a cooperative working agreement between Mecklenburg County and the Division of Water Quality. In addition, the inspection was conducted on behalf of the City of Charlotte in compliance with the City's NPDES Permit, NCS000240, Part II Section H. The following observations were noted during the Charlotte -Mecklenburg Stormwater Services inspection (please see the attached addendum for information about your permit): 1) Stormwater Pollution Prevention Plan (SPPP) A Stormwater Pollution Prevention Plan (SPPP) has been developed, recorded, and properly implemented. Yes ® No ❑ 2) Qualitative „Monitoring Qualitative monitoring has been conducted and recorded in accordance with permit requirements. Yes ® No ❑ 3) Analytical Monitoring Analytical monitoring has been conducted and recorded in accordance with permit requirements. Yes ® No ❑ NA ❑ 4) Permit and Outfalls A copy of the individual permit was included in the SPPP and documented outfalls were observed during the inspection. 5) City of Charlotte Stormwater Ordinance Review: During the inspection it was noted that the permittee captures part of the facilities stormwater in a retention pond. The pH of the retention pond is checked and documented prior to determining whether the water is to be released to the facilities stormwater system or pumped to the pretreatment system. During the review of Mooresville Regional Office Location: 610 East Center Ave., Suite 301 Mooresville, NC 28115 One Phone: (704) 663-1699 4 Fax: (704) 663-60401 Customer service: 1-877-623.6748 NorthCarolina Internet: http://portal.ncdonr.org/webtwq Natura ffi/ Ms. Smith, Rohm and Haas Chemical Company Compliance Evaluation Inspection, Page 2 July 9, 2010 the SPPP and lab documents, it was noted that the pH range was listed at 5.5 to 9.0 in the SPPP and lab documentation. The permittee should update the pH to 6.0 to 9.0 to be consistent with the monitoring requirements for pH listed in the individual permit. Thank you for the assistance and cooperation during the inspection. Overall, the facility's Stormwater program was well developed and implemented and this Office commends the permittee's efforts to ensure compliance with your NPDES permit. If you have any questions, comments, or need assistance understanding any aspect of your permit, please do not hesitate to contact Jeff Mitchell with CMSWS or Ms. Marcia Allocco of the Division of Water Quality at (704) 235-2204. Sincerely, for Robert B. Krebs Regional Supervisor Surface Water Protection Section Mooresville Regional Office cc: Rusty Rozzelle, MCWQP Craig Miller, City of Charlotte Water Quality Central Files Mooresville Regional Office Location: 610 East Center Ave., Suite 301 Mooresville, NC 28115 Phone: (704) 663-16991 Fax: (704) 11 Customer Service: 1-877-623.6748 Internet: httpJ/portal,ncdenr.orglweb/wq One NorthCarolina Naturally An Equal Opportunity 1 Affirmative Aclion Employer — 30% Recycledll O% Post Consumer paper i Ms. Smith, Rohm and Haas Chemical Company Compliance Evaluation Inspection, Page 3 July 9, 2010 ADDENDUM The National Pollutant Discharge Elimination System (NPDES) program was established under the federal Clean Water Act and then delegated to the Division of Water Quality for implementation in North Carolina. The NPDES permitting program for stormwater discharges was established i.n 1990. Phase I focuses on site and operations planning to reduce pollutant sources. Through the NPDES permitting program industrial facilities that fall into one of the subject ten categories are required to obtain permit coverage under a general permit or an individual permit, depending upon the facilities SIC code and the industrial activity occurring at the facility. There are currently 19 active general stormwater permits in North Carolina. One condition that is applicable to both the general permits and individual stormwater permits is the requirement to develop and implement site -specific comprehensive Stormwater Pollution Prevention plans (SPPP). These plans are required to include a comprehensive evaluation of the site and operations to reduce pollutant sources and prevent pollutant discharge. Copies of the general permits and accompanying documents can be accessed from the following webpage: httpa/portal.ncdenr,org/web/wqlwslsu/npdessw#General_Permits _NPDES, Permit text; technical bulletins, discharge monitoring forms, and a Notice of Intent (which is the application for coverage under a NPDES General Stormwater Permit] can be found on this website. The following items are a subset of permit requirements and are listed to assist you and help bring your attention to certain permitting issues, process and condition requirements of your permit. Please see the above mentioned website to obtain a copy of the permit so you may fully comply with all the conditions therein. Failure to properly comply with conditions of the permit, like those bulleted below, is a violation(s) of the permit and subject to civil penalty assessment(s) of up to $25,000.00 per day. • Industrial facilities that fall into one of the subject ten categories are required to obtain permit coverage under a general NPDES stormwater permit or an individual NPDES stormwater permit • All persons desiring to have facilities covered by a General Permit must register with the Division of Water Quality (DWQ) by filing of a Notice of Intent (NOI) and Applicable Fees. • This Notice of Intent (NO]) must be submitted and a Certificate of Coverage issued prior to any discharge of stormwater associated with the industrial -activity, process wastewater, and/or mine dewatering. • Once the Notice of Intent is received, DWQ will review and determine whether a Certificate of Coverage (COC) may be issued. If this Certificate of Coverage is issued the facility is covered by the General Permit. That is, the permittee is authorized to discharge stormwater, process wastewater, and/or mine dewatering pursuant to the type of General Permit until the permit expires or is modified or revoked. • Any other point -source discharge to surface waters of the state is prohibited unless it is an allowable non-stormwater discharge or is covered by another permit, authorization, or approval. • There are currently 19 active general permits. Permit conditions vary accordingly; however, most of the permits have the following condition requirements (you must read your entire permit to ensure full compliance): a Development and compliance with the Stormwater Pollution Prevention Plan o Collection, reporting, and recording of Analytical Monitoring c Collection, reporting, and recording of Qualitative Monitoring Mooresville Regional Office Location: 610 East Center Ave., Suite 301 Mooresville, NC 28115 011C Phone: (704) 663.16991 Fax (704) 663-60401 Customer Service: 1.877-623-6748 NorthCarolina Internet: httpalportaLncdenr.orglweblwG L�+ `% An Equal opportunity t Affirmative Action Employer— 30°� Recycledil O% Post Consumer paper ��" ` L#`lh �` �" Ms. Smith, Rohm and Haas Chemical Company Compliance Evaluation Inspection, Page 4 July 9, 2010 o Collection, reporting, and recording of Vehicle Maintenance Monitoring (if applicable) o Records —Visual monitoring shall be documented and records maintained at the facility along with the Stormwater Pollution Prevention Plan. Copies of the analytical monitoring results shall also be maintained on site. The Permittee shall retain records of all monitoring information, including all calibration and maintenance records and all original strip -chart recordings for continuous monitoring instrumentation, and copies of all reports required by this general permit for a period of at least 5 years from the date of the sample measurement, report, or application. o Expiration — The permittee is not authorized to discharge after the expiration date of the general permit. In order to receive automatic authorization to discharge beyond the expiration date, the permittee shall submit forms and fees as are required by the agency authorized to issue permits no later than -180-days prior to the expiration date. Any Permittee that has not requested renewal at least 180 days prior to expiration, or any permittee that does not have a permit after the expiration and has not requested renewal at least 180 days prior to expiration, will be subject to enforcement. Failure to renew your permit is a violation. o Transfer — The Certificate of Coverage (COC) issued pursuant to this general permit is not transferable to any person expect after notice to and approval by the Director. The Director may require modification or revocation and reissuance of the Certificate of Coverage to change the name and incorporate such other requirements as may be necessary under the Clean Water Act. The Permit is NOT transferable. o Name Change, Closure, or Facility Ownership change — Permittee is required to notify the Division in writing in the event the permitted facility is sold or closed. The Division of Water Quality views changes of name or ownership as a modification that requires the Director's approval and reissuance of the permit. Name and ownership changes require you to complete a NamelOwnership Change Form from the Division and mail it back to the Division of Water Quality along with all appropriate information. o Proper Operation and Maintenance is a requirement of the permit. Mooresville Regional office Location: 610 East Center Ave., Suite 301 Mooresville, NC. 28115 Phone: (704) 663-16991 Fax: (704) 663-60401 Customer Service: 1-877.623-6748 Internet: http:llporlal.ncdenr.org/web/wq NorthCarolina An Equal Opportunity % Affirmative Action Employer— 3C% Recycled110% Post Consumer paper r �1 Permit: NCS000386 SOC: County: Mecklenburg Region: Mooresville Compliance Inspection Report Effective: 05/01/09 Expiration: 04/30/14 Owner: Rohm And Haas Chemicals LLC Effective: Expiration: Facility: Rohm And Haas Chemicals LLC 6101 Orr Rd Contact Person: Timothy Ryan Directions to Facility: System Classifications: Primary ORC: Secondary ORC(s): On -Site Representative(s): Related Permits: Charlotte NC 28213 Title: Phone- 704-000-0000 Certification: Phone: Inspection Date: 04/19/2010 Entry Time: 09:00 AM Exit Time: 04:00 PM Primary Inspector: Water Quality Program Meckenburg County Phone: 704-336-5449 Secondary Inspector(s): Reason for Inspection: Routine Permit Inspection Type: Stormwater Discharge, individual Facility Status: ■ Compliant rl Not Compliant Question Areas: ® Storm Water (See attachment summary) Inspection Type: Compliance Evaluation Page: 1 Permit: NGS000386 Owner . Facility: Rohm And Haas Chemicals LLC Inspection pate: 04/19/2010 Inspection Type: Compliance Evaluation Reason for Visit: Routine Inspection Summary: Facility Description. - Rohm and Haas Chemical is a wholly -owned subsidiary of The Dow Chemical Company and operates a ten -acre polymer manufacturing plant at the Orr Road facility. The site is bounded by the Norfolk and Southern Railroad to the north, Orr Road to the south and west, and a warehouse and storage yard to the east. The Charlotte Plant is a manufacturing and distribution center for polymers [Standard Industrial Classification Code (SIC) 28211. The plant manufactures water -based emulsions of vinyl acetate, acrylic homopolymers, copolymers, and thickeners. Wastewater is collected and discharged to the Charlctte-Mecklenburg Utilities sanitary sewer system. Compliance History: The facility was last inspected by Charlotte -Mecklenburg Stormwater Services (CMSWS) on March 26, 2007, under the authority granted by the Charlotte City Code; Chapter 18, Article III, Section 18-84. No vio#ations were noted during the inspection. Stormwater monitoring was conducted at the facility by CMSWS on April 12, 2007. Elevated concentrations of copper, zinc, and turbidity were detected. Industrial Operations/City of Charlotte Stormwater Ordinance Review: During the inspection it was noted.that the permittee captures part of the facility's stormwater in a retention pond. The pH of the retention pond is checked and documented prior to determining whether the water is to be released to the facility's stormwater system or pumped to the pretreatment system. During the review of the SPPP and lab documents, it was noted that the pH range was listed at 5.5 to 9.0 in the SPPP and lab documentation. The permittee should update the pH to 6.0 to 9.0 to be consistent with the monitoring requirements for pH listed in the individual permit. Page: 2 J Permit: NCS000386 Owner - Facility: Rohm And Haas Chemicals LLC Inspection Date: 04119/2010 Inspection Type: Compliance Evaluation Reason for Visit: Routine Stormwater Pollution Prevention Plan Yes No NA NE Does the site have a Stormwater Pollution Prevention Plan? ■ n n n # Does the Plan include a General Location (USGS) map? ■ n n n # Does the Plan include a "Narrative Description of Practices"? ■ Cl n 0 # Does the Plan include a detailed site map including outfall locations and drainage areas? ■ n n n # Does the Plan include a list of significant spills occurring during the past 3 years? ®n n n # Has the facility evaluated feasible alternatives to current practices? ■ !� n in # Does the facility provide all necessary secondary containment? ■ n n 0 # Does the Plan include a BMP summary? ■ n n n # Does the Plan include a Spill Prevention and Response Plan (SPRP)? ■ n n n # Does the Plan include a Preventative Maintenance and Good Housekeeping Plan? ■ n n n # Does the facility provide and document Employee Training? ■ n n 0 # Does the Plan include a list of Responsible Party(s)? ■ O # Is the Plan reviewed and updated annually? ■ n n 0 # Does the Plan include a Stormwater Facility Inspection Program? ■ n n Cl Has the Stormwater Pollution Prevention Plan been implemented? ■ n n n Comment: Secondary containment is achieved by having multiple trench drains throughout the facility and directly underneath the liquid storage containers. The trench drains are gravity fed to two 105,000-gallon holding tanks for the pretreatment system which has the capacity to hold the largest liquid storage container (50,000 gallon) in the facility. Qualitative Mollring Yes No NA NE Has the facility conducted }ts Qualitative Monitoring semi-annually? ■ n n n Comment: Analytical Monitoring Yes No NA NE Has the facility conducted its Analytical monitoring? ■ rl n n # Has the facility conducted its Analytical monitoring from Vehicle Maintenance areas? n n ■ ❑ Comment: The permittee exceeded the individual permit's benchmark value for zinc at SDO 001 on March 29, 2010, and exceeded the benchmark value for zinc at SDO 002 on October 5, 2009 and March 29, 2010. The permittee had documentation of the Tier One response and was preparing to start monthly monitoring in accordance with the Tier Two response required by the individual permit. Permit and Oil Yes No NA NE # Is a copy of the Permit and the Certificate of Coverage available at the site? ■ Cl n n Page- 3 Permit: NC5000386 Owner - Facility: Rohm And Haas Chemicals tLC Inspection Dato: 04/19/2010 Inspection Type: Compliance Evaluation # Were all outfalls observed during the inspection? # If the facility has representative outfall status, is it properly documented by the Division? # Has the facility evaluated ail illicit (non stcrmwater) discharges? Comment: Reason for Visit: Routine Page'. 4 6101 ❑RR ROAD, CHARLOTTE, NC 28213 USA TEL ONE (704) 596-3 1-FAX ]704] 599-0909 _ o T= ,. ARCHITECTURAL AND FUNCTIONAL COATINGS + CHARLOTTE PLANT r'' s .,,�,.�"" ROHM SEP 2 2008 August 29 2008 aHAAS Mr. Samar Bou-Ghazale [14CDEW NPII?�O Water Quality Section ; jf,�rI Protection NC-DENR 610 E. Center Ave Mooresville, NC 28115 VIA OVERNIGHT COURIER RE: Overflow of Process Wastewater Basin, Rohm and Haas Orr Road Plant NPDES (Stormwater) Permit No. NCS000386 Dear Mr. Bou-Ghazale: As we discussed in our phone conversation on Wednesday, August 27, 2007, the Rohm and Haas Plant in Charlotte, NC experienced an overflow of one of the Plant's process wastewater basins due to the heavy rain event that occurred on August 26th-27th. It is roughly estimated that about 20 gallons of the Plant's process wastewater overflowed the basin and co -mingled with normal stormwater runoff. This stormwater was initially contained on -site, but due to the extraordinary amount of rain, overflowed the detention area and had to be released. At the beginning of the day on 8/26/08, steps were taken in waste treatment to accommodate the rainwater expected throughout the day. Wastewater was transferred out of the raw waste basin that receives the majority of process rainwater, and accumulated rainwater in the stormwater detention area was tested and released. Approximately 2-4 inches of rain was expected based on weather forecasts. At approximately 11 AM, rain intensity increased and the operator took additional steps to increase the transfer of wastewater from the receiving basin. As extra pumps were being set up, an estimated 20 gallons of wastewater overflowed the basin, and contaminated the stormwater detention area. Discharge flow from the detention area was immediately stopped to prevent discharge of the contaminated stormwater, and pumps were set up to transfer the stormwater to the aeration basin for discharge to the Plant's permitted city sewer outfall. Because additional rain was expected, extra measures to prevent additional overflow were also taken, including pumping wastewater to available empty tanks and rail cars, stopping transfer operations and blocking drains to waste treatment to minimize the volume of stormwater routed to the waste basin, and running the waste treatment operation at maximum rate (24 hours/day). At approximately 3 AM on 8/27/08, the continued heavy rain began flooding buildings on site and overflowing the stormwater detention area dam. The stormwater discharge valve was opened to drain the accumulated stormwater to minimize damage to site equipment and structures. At 7 AM, the darn for the stormwater detention area was observed to have collapsed (see Figure 1). The material contained in the basin that overflowed consists of latex emulsion rinse water from the Plant production process. This material is non -hazardous, and similar to whitewater from rinsing out a latex paint brush. The cause of the overflow was the heavy volume of rain that fell that day, along with the facility's Best Management Practices design in which areas of potential stormwater contamination from tank truck and rail -car loading and unloading operations drain to the Plant's waste treatment process. While rainwater from heavy rains is normally contained in the waste treatment process, the extremely heavy volume and intensity of this rain event exceeded the holding capacity of the waste treatment process, and of the stormwater detention area. The Plant's rain gauge overflowed at 5". It is estimated that I I+ inches of rain fell at the site, based on reports from nearby rain gauges (as reported in the Charlotte Observer and weather station websites), and from estimates of rain depth in dikes at the Plant. Nearby weather station websites (www.wunderground.com) also indicate rainfall rates up to 2 inches/hour in the time period corresponding to the raw waste basin overflow. The Plant has no permit limits on stormwater effluent, thus no limit violation exists. The Plant was being operated in accordance with proper procedures, including those in the Plant's Stormwater Pollution Prevention Plan and the SPCC Plan. Please feel free to contact me at (704) 596-3021, x3061 if you have any questions or need additional information. Sincerely, Timothy J. Ryan, CIH Environmental, Health, and Safety Manager cc: J. Kolff G. Rojas 'yY1y J t 'IT - �' • .�• I w�s _,..t_ 4jr.., J h • y � y.Yi ���� s �(6 ,Y.rw •'ly ,� � s t,-�ti.'^�ti�7 n�n�D*�*,r . �:'_y F� ,fr •C iy..'�.�r. ���rsx 1'r�s•S �yya'�'.y,}„ �,yL � �r r{���,,���1� ,�.k'�ii .j - ••� "`w� ,;c �' w< ': t � i S."Yir� �,fy,. sA � YRI•�" �fr gym: !. 7a Ty 'ki -..Y }�, • � •.Sr'ryrCJ; '�.f�'' .Cx � 1� r� !-,r'*�R� ��i ��G:ri �lh ��•a •���� �,w'.�O%j.�.:� =' ^. �;�-.4� 3�e�"Ja{ �� . '��-L '�- ,� �•'�•� � f� . ��•r�? �_ i�`54 efif; jX^r 5�.,.� rC e . �• �+4.� �tr�A4 1iti�S� iir.� .ue i �j�yF+�i+x :{k� s .'• a�yr�'�'� s 1•f a3, ••r.'1 �J'f�Gt *�~j''�y,,usn ''• � y ethyl ? Ai• .+, �� 3.�I�s � ��,�! ki S�6il�4' �-.� �! '+# n �� t:!`-e�YkS+.,M� t 'y p„�is +�Ke(y+�7, _r ��,��h��y �s� i!f t F��'� AM.4. •.r<+I 01, f"3• 4.PL �} r OF WATER > r o -c Mr. Thomas L. Archibald Rohm and Haas Chemicals, LLC 100 Independence Mall West Philadelphia, PA 19106-2399 Dear Mr. Archibald: Michael F. Easley, Governor William G. Ross Jr., Secretary North Carolina Department of Environment and Natural Resources Alan W. Klimek, P.E. Director Division of Water Quality December 2, 2005 Subject: Permit No. NCS000386 Rohm and Hass Chemicals LLC Formerly Rohm and Haas Company Mecklenburg Co. Division personnel have reviewed and approved your request to transfer coverage under the individual permit, received on November 23, 2005. Please find enclosed the revised Certificate of Coverage. The terms and conditions contained in the permit remain unchanged and in full effect. This revised Certificate of Coverage is issued under the requirements of North Carolina General Statutes 143-215.1 and the Memorandum of Agreement between North Carolina and the U.S. Environmental Protection Agency. If you have any questions, please contact the Stormwater Permitting Unit at (919) 733-5083, extension 502. - . L•t :.tiicre .e+ µto 01RIGINAL SIGNED BY i; 13RADLEY SENNETT 5 t ` Alan W. Klimek P. cc: DWQ Central Files Mooresville Regional Office, Water Quality Section Stormwater Permitting Unit Mecklenburg Co. W", CarOI- tur41! North Carolina Division of Water Quality 1617 Mail Service Center Raleigh, NC 27699-1617 Phone (919) 733-7015 Customer Service Internet: h2o.enr.state.nc.us 512 N. Salisbury St. Raleigh, NC 27604 FAX (919) 733-2496 1-877-623-6748 An Equal OpportunitylAfrmative Action Empbyer- W1. Recycled110°% Post Consumer Paper STATE OF NORTH CAROLINA DEPARTMENT OF ENVIRONMENT AND NATURAL RESOURCES DIVISION OF WATER QUALITY PERMIT NO. NCS000386 STORMWATER DISCHARGES NATIONAL POLLUTANT DISCHARGE ELIMINATION SYSTEM In compliance with the provision of North Carolina General Statute 143-215.1, other lawful standards and regulations promulgated and adopted by the North Carolina Environmental Management Commission, and the Federal Water Pollution Control Act, as amended, ROHM AND HAAS CHEMICALS LLC is hereby authorized to discharge stormwater from a facility located at ROHM AND HAAS CHEMICALS LLC 6101 ORR ROAD CHARLOTTE MECKLENBURG COUNTY to receiving waters designated as an unnamed tributary to Brier Creek, a class C stream, in the Catawba River Basin in accordance with the effluent limitations, monitoring requirements, and other conditions set forth in Parts I, II, III, IV, V, and VI hereof. This permit shall become effective December 2, 2005. This permit and the authorization to discharoshalI expire;on-August-31, 2006 Signed this day December 2, 2005. �1 ORIGINAL SIGNED BY BRADLEY BENNETf r: i Alan W. Klimek; birecior Division of Water Quality By Authority of the Environmental Management Commission