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Home My WebLink AboutNC0073181_Permit Issuance_19960531State of North Carolina Department of Environment, L1WA Health and Natural Resources AT4 � Division of Environmental Management James B. Hunt, Jr., Governor Jonathan B. Howes, Secretary ED E ""F1 A. Preston Howard, Jr., P.E., Director May 31, 1996 Mr. Jim Dubose Exxon Chemical Company Paktank Corporation 2000 West Loop South, Suite 2200 Houston, Texas 77027 Subject: Permit Issuance Permit No. N0073181 South Wilmington Terminal New Hanover County Dear Mr. Dubose: In accordance with the application for discharge permit received on January 29, 1996, the Division is forwarding herewith the subject state - NPDES permit. This permit 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. If any parts, measurement frequencies or sampling requirements contained in this permit are unacceptable to you, you have the right to an adjudicatory hearing upon written request within thirty (30) days following redeipt of this letter. This request must be in the form of a written petition, conforming to Chapter 150B of the North Carolina General Statutes, and filed with the office of Administrative Hearings, Post Office Drawer 27447, Raleigh, North Carolina 27611-7447. Unless such a demand is made, this permit shall be final and binding. This permit shall be subject to revocation unless the wastewater treatment facilities are constructed in accordance with the conditions and limitations specified in Permit No. NCO073181. Please take notice that this permit is not transferable. Part II, EA. addresses the requirements to be followed in case of change in ownership or control of this discharge. This permit does not affect the legal requirements to obtain other permits which may be required by the Division of Environmental Management or permits required by the Division of Land Resources, Coastal Area Management Act, or any other Federal or Local governmental permits may be required. P.O. Box 29535, Raleigh, North Carolina 27626-0535 Telephone 919-733-5083 FAX 919-733-9919 An Equal opportunity Affirmative Action Employer 50% recycled/ 10% post-oonsumer paper If you have any questions or need additional information, please contact Mr. Mark McIntire, telephone number (919) 733-5083, extension 553. Sincerely, Original Signed By David A. Goodrich A. Preston Howard, Jr., P.E. cc: Central Files Mr. Roosevelt Childress, EPA Wilmington Regional Office, Water Quality Permits and Engineering Unit Facility Assessment Unit Permit No. NCO073181 STATE OF NORTH CAROLINA DEPARTMENT OF ENVIRONMENT, HEALTH, AND NATURAL RESOURCES DIVISION OF ENVIRONMENTAL MANAGEMENT PERMIT TO DISCHARGE WASTEWATER UNDER THE 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, Exxon Chemical Company is hereby authorized to discharge wastewater from a facility located at Exxon Chemical Company 3340 River Road Wilmington, North Carolina New Hanover County to receiving waters designated as the Cape Fear River in the Cape Fear River Basin in accordance with effluent limitations, monitoring requirements, and other conditions set forth in Parts I, II, III and IV hereof. This permit shall become effective July 1, 1996 This permit and authorization to discharge shall expire at midnight on June 30, 2001 Signed this day May 31, 1996 Original Signed By David A. Goodrich A. Preston Howard, Jr., P.E., Director Division of Environmental Management By Authority of the Environmental Management Commission Permit No. NC0073181 SUPPLEMENT TO PERMIT COVER SHEET Exxon Chemical Company is hereby authorized to: 1. Continue to operate a wastewater treatment facility consisting of separate 20,000 and 4,000 gallon oil/water separators followed by a 2.5-acre pond located at Exxon Chemical Company, 3340 River Road, Wilmington, New Hanover County (See Part III of this Permit), and 2. Discharge from said treatment works at the location specified on the attached map into Cape Fear River which is classified Class SC waters in the Cape Fear River Basin. ROAD CLASSIFICATION PRIMARY HIGHWAY LIGHT -DUTY ROAD, HARD OR HARDSURFACE IMPROVED SURFACE SECONDARY HIGHWAY HARD SURFACE =1111111110= UNIMPROVED ROAD Latitude 34010'43" Map # K27NW Longitude 78057'16" Sub -basin 03-06-17 Stream Class SC Discharae Class Stormwater Receiving Stream Cape Fear River Design 0 episodic Permit expires 6/30/01 SCALE 1:24 000 +wamemmme�arcaeeu-RRRRR-�� 1 � /11 FEET aeeane0emmem�tlJ'ewe-aexaw�smeeeem-�`�-'�� 1 eeee.eweanneee� KILOMETER CONTOUR INTERVAL 5 FEET QUAD LOCATION Exxon Chemical NCO073181 New Hanover County Terminal Tank Facility A. (). EFFLUENT LIMITATIONS AND MONITORING REQUIREMI N7 S Permit o. NCO073181 During the period beginning on the effective date of the permit is - id lasting until expiration, the Permittee is authorized to .lischarge stormwater fron: outfall(s) serial number001. Such discharges shall be united and monitored by the Permittee as specified below: Effluent Characteristics Discharge Limitations Monitoring Requirements Measurement Sample Sample Monthly Avg.Weekly v ,; Daily Max, Fre uency , Tyne Location Flows Effluent Total Suspended Solids 45.0 mg/1 Monthly Grab Effluent Oil and Grease2 45.0 mg/1 Monthly Grab Effluent EPA Methods 624/625 Semi-annually Grab Effluent Benzene 71.4 µg/1 - Monthly Grab Effluent Toluene 11.0 µg/l . Monthly Grab Effluent Acute Toxicity3 — ' ' Annually Grab Effluent Footnotes: 1 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 four ways: a) Measure flow continuously, b) Calculate flow based on the area draining to the outfall, the built upon area, and the total rainfall, (this method of flow measurement should not be used at facilities that have large ponds to collect surface water runoff), c) Estimate by flow measurement at 20 minute intervals during the entire discharge event, or d) Base flow on pump logs. 2 Where possible, the grab sample for oil and grease should be skimmed from the surface of a quiescent (calm water) zone. 3 Acute Toxicity (Fathead Minnow, 24-hour) Monitoring, Episodic, See Part III, Condition E. There shall be no discharge of floating solids or visible foam in other than trace amounts. There shall be no direct discharge of tank solids, tank bottom water, or the rag layer. There shall be no direct discharge of tank contents following hydrostatic testing unless benzene concentration is less than 71.4 ug/1 and toluene concentration is less than 11 ug/l. Part III NCO073181 E. ACUTE TOXICITY MONITORING (ANNUAL) The permittee shall conduct annual 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. The permittee will conduct one test annually, with the annual period beginning in January of the calendar year of the effective date of the permit. 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, DEM Form AT- I (original) is to be sent to the following address: Attention: Environmental Sciences Branch North Carolina Division of Environmental Management 4401 Reedy Creek Rd. Raleigh, N.C. 27607 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 Environmental Management 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. Failure to submit suitable test results will constitute noncompliance with monitoring requirements.