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HomeMy WebLinkAboutNC0022187_Permit Issuance_20010730OF vvM�FR r NCDENR p `C Ms. Nicola Ellis Motiva Enterprises, LLC 2232 Ten -Ten Road Apex, NC 27502 Dear Ms. Ellis: 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 July 30, 2001 Subject: Issuance of NPDES Permit NCOO22187 Charlotte -North Terminal Mecklenburg County Division of Water Quality (Division) personnel have reviewed and approved your application for renewal of the subject permit. Accordingly, we are forwarding the attached NPDES discharge 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 May 9, 1994 (or as subsequently amended). Please note the following changes from your draft permit, some of which are the results of the Paw Creek hearing officer's recommendations and others of which are in response to the comments submitted by the facility. T • pH monitoring and limits have been removed from your permit. This was an error made in all of the w Creek draft permits. The pH requirement was eliminated in the previous permitting cycle and should not have been included in the 2001 permits. • The MTBE limit of 11.6 µg/L has been removed from the permit. As per the hearing officer's recommendations, a peer -reviewed criterion for NME does not exist and will not be included as part of the permitting strategy for the Paw Creek permits. It is anticipated that a criterion will be in place when this permit is next renewed. In addition to monthly monitoring of MTBE, please see Part A. (3) for some additional requirements related to MTBE. • The monthly monitoring requirement for naphthalene has been deleted from your permit. Semi-annual monitoring using EPA Method 625 replaces it. As per the hearing officer's report, 625 is the best method for detecting naphthalene and other middle distillate compounds and is therefore a more appropriate monitoring requirement. • The monthly monitoring for fluorene and phenantherene has been removed from your permit. EPA Method 625 will provide data for these parameters. • The permit limit for manganese has been removed from your permit. Manganese is commonly found in the natural environment. The intent of the manganese monitoring requirement is to indicate the efficacy of the treatment system and so a limit is not warranted. • The monitoring frequency for 1,2 Dichloroethane has been reduced to quarterly. This reflects a change in the general permit requirements for the discharge of remediated groundwater. Moreover, data from your facility have shown no detects for 1,2 Dichloroethane. As concerns the monitoring requirements for turbidity and total suspended solids, these are a continuation of monitoring requirements initiated through an administrative letter in 1999. The 1996 review of the oil terminal permits across the state of North Carolina revealed large variation in the requirements for monitoring of suspended solids. As a result, the requirement for all of these permits was changed to monthly total suspended solids monitoring with a TSS limit of 45 mg/L. Following the issuance of the permits in Paw Creek, the Environmental Protection Agency (EPA) expressed concern regarding anti -backsliding and the removal of the turbidity monitoring requirement. In February 1999, an administrative letter was mailed to 12 of the 14 Paw Creek facilities requiring quarterly turbidity monitoring. For the 2001 renewals, these data were used in reasonable N. C. Division of Water Quality 1 NPDES Unit Phone: (919) 733-5083 1617 Mail Service Center, Raleigh, NC 27699-1617 fax: (919) 733-0719 Internet: h2o.enr.state. nc.us DENR Customer Service Center: 1 800 623-7748 potential calculations. If a facility demonstrated reasonable potential to violate the stream standard of 50 NTU, then monthly monitoring and a limit of 50 NTU were added to the permit, as in the case of your facility. 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 receipt 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 (6714 Mail Service Center, Raleigh, North Carolina 27699- 6714). Unless such demand is made, this decision shall be final and binding. Please note that this permit is not transferable except after notice to the Division. The Division may require modification or revocation and reissuance of the permit. This permit does not affect the legal requirements to obtain other permits which may be required by the Division of Water Quality or permits required by the Division of Land Resources, the Coastal Area Management Act or any other Federal or Local governmental permit that may be required. If you have any questions concerning this permit, please contact Natalie Sierra at telephone number (919) 733- 5083, extension 551. Sincerely, 4rr cc: Mooresville Regional Office/Water Quality Section NPDES Unit Central Files Point Source Branch Compliance and Enforcement Unit Mecklenburg County Department of Environmental Protection Mr. Eric G. Hetrick Applied Earth Sciences, Inc. 814 Davidson Road Concord, North Carolina 28025 It Permit NCO022187 _ ..STATE OF. NORTH CAROLINA . . DEPARTMENT OF ENVIRONMENT AND NATURAL RESOURCES DIVISION OF WATER QUALITY PERMIT TO DISCHARGE WASTEWATER UNDER THE NATIONAL POLLUTANT DISCHARGE ELIMINATION SYSTEM (NPDES) 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, Motiva Enterprises LLC is hereby authorized to discharge wastewater from outfalls located at the Charlotte -North Terminal 410 Tom Sadler Road Paw Creek near Charlotte Mecklenburg County to receiving waters designated as an unnamed tributary to Gum Branch in the Catawba 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 September 1, 2001. This permit and authorization to discharge shall expire at midnight on ,Tune 30, 2005. Signed this day July 30, 2001. Kerr T. J" , erector // / Divisio Wa r Quality y By Authority f the Environmental Management Commission is hereby authorized to: 1. continue to operate the existing water pollution control system consisting of • an oil/water separator • a groundwater remediation system • a detention pond located at the Charlotte -North Terminal, 410 Tom Sadler Road, Paw Creek, Mecklenburg County, and 2. discharge from said treatment facility through ,Outfall 001 at a specified location (see attached map) into an unnamed tributary to Gum Branch, a waterbody classified as WS-IV waters within the Catawba River Basin. • '11A 1 VAIM • yBoom •vuu �ca � � ; • • • y=, ' /\\ , � t=a•=fi' f_ `eta' 1 f M ` err I1C ��• �•-:;. -:fit" 1 l��: • S It ✓��• .: i �� � • _ �' � � �Jl T � t4 Y f Motiva Enterprises, LLC Charlotte -North Terminal State Grid/Quad: F15SW / Mountain Island Lake, NC Latitude: 35° 16' 19" N Longitude: 800 56' 10" W Permitted Flow: not limited Receiving Stream: UT to Gum Branch Drainage Basin: Catawba River Basin Stream Class: WS-IV Sub -Basin: 03-08-34 Facility g� Location ry `tw: not to scale North NPDES Permit No. NCO022187 Mecklenburg County h :c MW-32 MW-31 - 1 ® ® MW-30, 'Creek .• ''` - ' A.eaed pc �- ,-.►°sv..�Q .5n<sw�,.` wo' �i - • ,o`{ ' •-•r¢�.•.Gv L'•�i3.,,o wace.E.*z'�+aes��ts�E -Retention Pond .! _ - - Re Shadtion MW-13 _ , 0 .%'P p6wa Q tj'#: 7 rJQ OMW-21* r r h * W-22 •e-�c -e--e- e- e w r • Storm *� R :<• tY / o\any Drain ��:�-." , Storm MW-230 _ _ IAW_16V o. .a.a��=�� L�.•�� ' SC<1�e in Feet Drain ---�n�----------- __._ -+-"'r� Noffice/ MW-16D1 MW-16 erehouee MW-11 ea= a,=o k'o :V-3 sqLW_ Pump MW oi{Oue -,kW'" 7•,+!M'�1rsMrw�•r�r: *+ 4" �11. �17. r _ Concrete MW-1Z -® RW-4® MW-1 4� �. rt Truck k� t hlp r r 4+a E,nely e, sk5 in"+, . Rock ^ ;�•� , ," �,• � � . V 11 i a � .� y ..i.fiD A., �7. ,•S»Y .rlwY:., .. 4 � ! t: t:i Fire i, Building O Air Sparge'Well Location " " ® Shallow' Monitor • Well Location ®MW-25 MW-20 t`�` t� c"0 Deep Monitor Wdl ; Location ® MW-3 MW-270 m' ' Sump . " In ; . 0MW-26 MR-r-*-�" O Recovery Well Location cUv Location.: 1?!. •Ina a Well el cation:; R'"-'►- _ _ __ __ i = s — Storm Drain ; Una ' Fence •.:• c. I c; ' Plantation Pipeline —tom Property ' Une APPLIED EARTH SCIENCES - CAROLINAS, IC. E NMOTIVA ENTERPRISE ' ' ' FIGURE Facility No. 20-506-5001 Mode •B.P. Date:2-12-Di 410 Tom Sa l,er.. SITE MAP I 069-00093-01 �'' � .,RQAId� :==�:��� •.: { Checked By:E.H. File:003-01 Charlotte, North Carolina..' Permit NCO022187 A. (1.) EFFLUENT LIMITATIONS AND MONITORING REQUIREMENTS = -= During the'period beginning on the effective date of the permit and lasting until expiration; the Permittee is authorized to discharge stormwater and treated groundwater from outfall 001. Such discharges shall be limited and monitored by the Permittee as specified below: kC]EI RAC.TERISTICS #E� i An XIT Aont ; y Average�� , ai y Maxii num�reguencY -k easurement� � amp a �,T P F ample ocation W' �. Flow Episodic Effluent Total Suspended of s 30.0 m Monthly raEffluent Oil and Grease2 Monthly raEffluent Turbidity3 Monthly Cirab Effluent Phenol Monthly ra uent Benzene 1 19 µgo, Monthly Ettluent o uene 11.0 µg/L Monthly ra uent Ethyl enzene Monthly Cirab Etfluent y ene Monthly ra went et y ert- uty ter (MTBE)4 Monthly raEffluent Lead ont y Urab Effluent 1,2 Dichloroethane uarter y Effluent EPA Method Semi-annually Effluent Iron Monthly raEffluent Manganese Monthly raEffluent Acute Toxicity —Annually ra uent Footnotes: 1. Flow — During periods of no flow, the Permittee shall submit a monthly Discharge Monitoring Report (DMR) indicating "No discharge." Flow must be monitored with each discharge and may be monitored in one of four ways: a) measure flow continuously; b) calculate flow based on total rainfall per area draining to the outfall; exclude built -upon area (best method for facilities with large runoff -collection ponds); c) estimate flow at 20-minute intervals during the entire discharge event; or d) report flow based on discharge pump logs. v/ 2. Oil and Grease — Where possible, the grab sample for oil and grease should be skimmed from the surface of a quiescent (calm water) zone. 3. Turbidity — Effluent shall not cause receiving stream turbidity to exceed 50 NTU. If receiving stream background turbidity exceeds 50 NTU, effluent shall not cause this background value to increase. 4. MTBE - Please see Part A. (3) for other requirements relating to MTBE. 5. Acute Toxicity (Fathead Minnow, 24-hour), Annual [see Special Condition A.(2.)]. There shall be no discharge of floating solids or foam visible 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 (or pipe) contents following hydrostatic testing unless benzene concentration is less than 1.19 µg/1 and toluene concentration is less than 11 µg/l. vermit NL;uuv,:zizst EFFLUENT LIMITATIONS AND MONITORING REQUIREMENTS . - SPECIAL CONDITIONS -—- A. (2.) ACUTE TOXICITY MONITORING (ANNUAL) The Permittee shall conduct annual toxicity tests using protocols defined as definitive in EPA 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, DWQ Form AT-1 (original) is to be sent to the following address: Attention: North Carolina Division of Water Quality Environmental Sciences Branch 1621 Mail Service Center Raleigh, North Carolina 27699-1621 Completed Aquatic Toxicity Test Forms shall be filed with the Environmental Sciences Branch no later than 30 days after the end of the reporting period for which the report is made. 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 Water Quality 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 and will require immediate follow-up testing to be completed no later than the last day of the month following the month of the initial monitoring. Permit NC0022187 A. (3) MTBE SPECIAL CONDITION For the protection of public health, oil terminals that discharge to waters classified as water supplies ("WS" waters) will adhere to the following action plan: 1. As stated in Part A. (1) and (2), monthly monitoring of MTBE for the duration of the permit is required. 2. After one year of monthly monitoring or once twelve data points have been collected, the Permittee shall review the MTBE data collected. If MTBE has not been detected in any samples taken during the first year, the facility may request that the monitoring frequency for MTBE be reduced. This should be done by requesting the NPDES Unit to perform a minor modification to the NPDES permit. In the case in which MTBE has been detected within the first year of effluent sampling, the subject facility must submit an MTBE reduction plan. This action plan may include site -specific BMPs or engineering solutions. A copy of this plan should be submitted to: North Carolina Division of Water Quality Water Quality Section Attn: NPDES Unit 1617 Mail Service Center Raleigh, NC 27699-1617 3. By the time of the next permit renewal, it is anticipated that surface water criterion for MTBE will be established. This criterion will be used in conjunction with the facility's effluent MTBE data to perform a reasonable potential analysis (RPA). The RPA will determine whether effluent from a facility has the potential to exceed a water quality standard or criterion, thereby requiring a water quality limit in the NPDES permit. * ,{TRiE �V I~TO BE HELM BYE (✓'- �1 I`46,cldAnbu THE NORTH CAROLINA ENVIRONMENTAL MANAGEMENT COMMISSION 1-'llt'l�l� SUBJECT: A public hearing has been scheduled concerning Me�proposed renewal and issuance of the following NPDES Permits: - Permitnumber NCO021962 to CITGO Petroleum Corporation for the Paw Creek Terminal located in Charlotte, N.C. Charlotte (Mecklenburg County) for the discharge of stormw iter into an unnamed tributary to Gum Branch. AFFI&AVITOFPUBLICA1 - Permit number NC0022187 to Motiva Enterprises for the Paw P.reek Terminal located in CharlotteNORTH CAROLINA (Mecklenburg County) for the discharge of stormwater and remedied groundwater Into an unnamed MECKLENBURG COUNTY tributary to Gum Branch. Befom0. undersigned, Notary l - Permit number NCO032891 to Philips Pipe Line Company for the Chorale Terminal located in Nodh Carolina, duly commissioner Charlotte (Mecklenburg County) for the discharge of Stormwater into an unnamed tributary to Gum law to administer oaths, personalty Branch. Shelby J. Curarn - Permit number N00074705 to William Terminals Holdings,I.P. far tie Chadotte/Southem Facilities Terminal located in Charlotte (Mecklenburg County) for the discharge of stermwater into an unnamed THE MuArknh,rg TINES, a nev tributary to Paw Creek. entitled aasecond-daaa mail in the - Permit number NC0004723 to Valero Marketing 6 Supply Commpany for the Valero Marketing 8 and Statrdrathe/she is authorizedti Supply Facility located in Charlotte (Mecklenburg County) for the discharge of stonnwater into an ataamenn; drat the notice or other It unnamed tributary to Paw Creek. NOTICE OF PUBLIC } - Permit number NC0005771 to TransMontaigne Terminating, Inc. forthe Charlotte/Paw Creek Termi- nal #1 located in Charlotte (Mecklenburg County) for the discharge of stormwater into an unnamed TO IBE HELD BY THE tributary to Paw Creek. ENVIRONMENTAL MAN/ - Permit number NCO021971 to TrarlsMontaigne Terminating, Inc $or the Charfotte/Paw Creek Tem* nal #2 located in Charlotte (Mecklenburg County) for the discharge of stornwater into an unnamed tributary to Paw Creek - - Permit number NCO031038 to Colonial Pipeline Company for the Charlotte Delivery Facility located a true ."ofwhwha attached herd in Charlotte (Mecklenburg County) for the discharge of stonnwater into an unnamed tributary to Gum lenhurg TINES ES on the following ds Branch. March 16, 2001 - Permit number NCO046213 to Marathon Ashland Petroleum, LLC for the Marathon Ashland Petro- leum facility, located in Charlotte (Mecklenburg County) for the. discharge of stornwalerinto an on - and that lfhe said newspaper in which named tributary to Long Creek. or legal advertisement was publish, - Permit number N00046531 to Crown Central Petroleum Company for the Paw Creek Terminal every suds, publication, anewspaper located in Paw Creek (Mecklenburg County) for the discharge of stoe+mvater into an unnamed tributary and quayations of Section 1-597 r to Gum Branch. Carolina acid was a qu dified.—p , - Permit nughber NCO046892 to Motiva Enterprises, LLC for the Charlotte Terminal located in Paw tion 1-597 ofthe General Statutes o Creek (Mecklenburg County) for the discharge of stonnwater and remediated groundwater to an This 16th day of M. unnamed tributary to Long Creek. ii - Permit number NC0004839 to Exxonl Refining 8 SupplyCompany for the Charlotte Terminal located in Chanotte (Mecklenburg County) for the discharge of stonnwater and remediated groundwa- G/ ter to an unnamed tributary to Long Creek. Sworn to and subscribed b ro i., -Permit number N00005185 to Williams Terminals Holdings, LP. for the Paw Creek Terminal located in Paw Creek (Mecklenburg County) for the discharge of stormwatee to an unnamed tributary to Long 16th. dayuf March 20l Creek. PURPOSE: Each of these facilities has applied for renewal of their NPDES permit for the discharge of treated stonnwater and/or remediated groundwater into waters cf the Catawba River basin. On the Notary Pabtii basis of preliminary staff review and application of ArSde 21 of Ghaptler 143, General Statutes of North Carolina, and other lawful standards and regulations, the North Cahrofina Environment Management *01My Coeriaeion Expires: % I7 Commission proposes to issue a NPDES Permit for each facility subject to specific pollutant limitations and special conditions. The Director of the Division of Water Quality pursuant to NCGS 143-215.1(cx3) and Regulations 15 NCAC 2H, Section .0100 has determined that tt is in the public interest that a meeting be held to receive all pertinent public comment on whether to Issue, arrodify, or deny the permit. PROCEDURE: The hearing will be conducted in the following marsrer: 1. The Division of Waiter Quality will present an explanation of the North Carolina Environment Management Commission's Permitting procedure. 2. The applicant may make an explanation of the action for which each permit is required. 3. Public Comment - Comments, statements, data and other infontaabon may be submitted in writing prior to or during the meeting or may be presented orally at the meeting. Persons desiring to speak will indicate this intent at the time of registration at the meeting. So that all persons desiring to speak may do so, lengthy statements rfiay be limited at the discretion of the meeting officer. Oral presentatoms that exceed three minutes should be acxompamed by three written copies, which will be filed with Division staff at the fine of registration. - - — - 4. Cross examination of perspns presenting testimony will not be allowed; however, the hearing officer may ask questions for clarification. 5. The healing record may be closed at the conclusion of the meeting. WHEN: April 19- at 7:00 p.m. WHERE: Ctartotte-Mecklenburg Govemment Center 600 East Fourth Street, CH-14 Chadctte, North Carolina INFORMATION: A copy of the drat NPDES pernri (s) anda map shoieing the location d the dlscharge(s) are available by -writing ar calling, Ms. Christie Jackson NO Division of Water Quality/NPDES Unit 1617 Mail Service Center Raleigh, North Carolina 27699-1617 Telephone number: (919) 733-5083, extension 538 The applica5ons and other information are on file at the Division of 4Yater Quality, 512 North Salisbury Street, Room 925 of the Archdale Building in Raleigh, North Carolina and at the Division's Mooresville Regional Office (919 North Main Street in Mooresville, NC). They may be inspected during normal office .hours. Copies of the information on file are available upon request and payment of the costs of reproduction. All such comments and requests regarding this matter should make reference to the permit number(s) listed above. 95084 Mar 16 DIVISION OF WATER QUALITY _ Apri15, 2001 MEMORANDUM TO: $KL:�,,Dave Goodrich; FROM: D. Rex Gleason PREPARED BY: Richard BridgemanWL SUBJECT: Draft Permits for Paw Creek Facilities Following is a discussion of the draft permits: r_ U O N O m 0 �a rL" r- o Qr fN e=1D 0- Q W o a n. - It is recommended that the effluent sample location be specified in all the permits. Circumstances at one facility (at least) can be cited as justification for the recommendation. The permit description of the water pollution control system (WPCS)' for Colonial Pipeline Co. (NC0031038) includes a retention pond. This pond is also mentioned in the Fact Sheet. Regardless of the 7Q10, 30Q2, and average flow data, this pond is actually an impoundment fed by three UT's to Gum Branch. According to the terminal manager; there is flow in these UT's to Gum Branch 12 months per year. The effluent from the CITGO (NC0021962) facility is discharged to one of the UT's. Stormwater runoff from at least one other terminal site may also enter the impoundment. Effluent samples are collected at the outfall for the impoundment. As discussed above, in addition to the sample collection location, the Colonial Pipeline Co. (NC0031038) permit needs to be reviewed to determine if it is appropriate to include the impoundment of a UT to Gum Branch as a treatment unit (retention pond). - Consistency is needed in specifying source of wastewater to WPCS. There are four different methods used in the draft permits, as follows: Source not specified anywhere. Source indicated in the paragraph on the Supplement to Permit Cover Sheet, _ which describes the WPCS and/or specifies outfall. Source indicated in the paragraph on the Supplement to Permit Cover Sheet that.--------.-. specifies receiving water. Source indicated in Part I, Section A(1) of permit (Effluent Limitations and Monitoring Requirements Sheet). The writer's preference, in part because several of the facilities have multiple outfalls, is to indicate sources on both the Supplement to Permit Cover Sheet (in paragraph which describes the WPCS and/or outfall) and in Part I, Section A(1). An example of the writer's preference is in the permit for Motiva Enterprises, LLC (NC0046892). Dave Goodrich Page Two April 5, 2001 Flow measurement/reporting frequency is recommended to be episodic (as in permit Motiva Enterprises, LLC (NC0022187). For several design reasons, discharge events basically occur on an as -needed basis; a decision is usually made when there will be a discharge through an outfall. The only exception may be Outfall 002 included in the permit for ExxonMobil Refining and Supply (NC0004839), which is for a groundwater remediation system without any flow retention capability, and, therefore, subject to daily discharges. Since discharge events are mostly manually precipitated and occur randomly or as -needed, the range of the flow data at a facility may vary considerably. Flow data seems to have played a large role in the development of effluent limits (as in reasonable potential analysis for phenols), and yet historically flow measurement methods and data have been two of the evaluations of a compliance inspection subject to much scrutiny and criticism. Given the flow measurement options specified in the permits, the small number of discharge events probable each month, the importance of flow data, and the possibility of a wide range in the flow data, it is not unreasonable to expect flow to be measured and reported for each flow event. The Turbidity monitoring requirement does not seem to be complete. The permits, with two exceptions (discussed under the next item), include either a quarterly monitoring -only requirement or a monthly monitoring requirement with an effluent limit. It is not understood how the effluent turbidity monitoring requirement correlates with the relevant footnote in Part I, Section A(1). Should there not also be an upstream and downstream monitoring requirement. In fact, those facilities with a monitoring -only requirement need only conduct stream monitoring to determine if effluent turbidity levels result in stream standard violations. One of the exceptions mentioned above under the item for Turbidity Monitoring is Marathon Ashland Petroleum, LLC (NC0046213). Although the permit cover letter indicates that the permit includes a monthly monitoring requirement and an effluent limit, Part I, Section A(1) of the permit and the Fact Sheet indicate a monthly monitoring -only requirement. The permit and Fact Sheet appear to be correct; monthly monitoring is being required because of the near potential for a stream standard violation. The other exception is Motiva Enterprises, LLC (NC0022187); monthly monitoring is being required because none of the previously required monitoring has been conducted. Philips Pipe Line Company (NC0032891) — Phenol limit in the other permits is expressed in mg/L. In the Philips permit, it is expressed in ug/L. ExxonMobil Refining and Supply (NC0004839) — Benzene limit is indicated to be 1.2 ug/L; should it not be 1.19 ug/L? Dave Goodrich Page Three April 5, 2001 Phenol limit development. The cover letters for four of the six permits with a Phenol limit discuss development of the limit. In the cover letter, the water quality standard for phenol is indicated to be 1 mg/L; it is actually 1 ug/L for WS waters. The writer is not familiar with the 2001 SOP used to develop limits for phenol, but considering the fact that five of the six facilities discharge to streams having a 7Q 10, 30Q2, and average stream flow of zero, and the sixth facility discharges to a stream having a 7Q10 and 30Q2 flow of zero and an average flow of <1, it is hard to understand the assigned limits. The 3 mg/L Phenol limit for Outfall 002 in the ExxonMobil (NC0004839) permit is almost unimaginable. Motiva Enterprises, LLC (NC0022187) — The Fact Sheet indicates that there is a reasonable potential for the stream standard for Lead to be violated, but indicates that no limit will be assigned because lead is an action level pollutant. A change? If not, should there be a Lead limit in permit? TransMontaigne Terminaling, Inc. (NC0021971) — Permit Cover Sheet indicates that discharge is to Paw Creek. As indicated elsewhere in permit, discharge is to a UT to Paw Creek. Williams Terminals Holdings, L.P. (NC0074705) — The permit description includes an oil/water separator, a carbon filter, and a holding tank. The Fact Sheet indicates that wastewater and stormwater are routed to a retention pond and released as needed. No staff report or compliance inspection report mentions this retention pond. MCDEP staff has confirmed that there is no retention pond at the site. Valero Marketing & Supply Co. (NC0004723) — Please review discussion in Fact Sheet concerning the assignment of a Turbidity limit. If the average turbidity value in the past 1.5 years is 7.2 NTU and the maximum 28 NTU, why is there a prediction of a maximum of 110.3 NTU? Williams Energy Ventures (NC0005185) — Permit Cover Sheet indicates that discharge is to a UT to Gum Branch; as correctly identified on the Supplement Sheet, it is a UT to Long Creek. Motiva Enterprises, LLC (NC0046892) — Fact Sheet indicates that the Flow requirement for Outfall 002 in the previous permit will remain unchanged. There was a Flow limit in the old permit, but not in the draft permit. The writer does not recommend a limit. Please advise if you have questions or comments. :_U MECKLENBURG COUNTY Department of Environmental Protection April 17, 2001 Mr. Dave Goodrich NCDENR - DWQ - NPDES Unit 1621 Mail Service Center Raleigh, NC 27699-1617 Subject: Paw Creek Petroleum Terminal NPDES Permit Renewals Dear Mr. Goodrich: . RECEIVED WATM ry rar nv Sir,.noN. APR � u 221 Nmr)iwharge PeffnI ng The Mecklenburg County Department of Environmental Protection (MCDEP) has reviewed the subject draft permits. As you know. MCDEP has a Memorandum *of Agreement with the Division of Water Quality to conduct inspections of the Paw Creek terminals in order to determine compliance with the applicable NPDES permits. We offer the following comments regarding the permits: General • Flow Measurement The flow measurement method by which facilities are allowed to calculate flow based on the area draining to the outfall, the built -upon area, and total rainfall using the rational equation is inaccurate in most cases. Most facilities inspected by MCDEP collect stormwater in earthen secondary containment basins surrounding the above ground storage tanks (not ponds). The facilities generally hold the stornwater for as long as possible (several weeks if weather permits) to allow any suspended solids to settle out and to avoid discharge if possible so that monthly sampling and laboratory analysis does not have to be performed. Calculating discharge flow by this method is inaccurate because it does not account for evaporation and ground infiltration during the holding period. • Quarterly Turbidity Monitoring The permits state that "Effluent turbidity shall not cause the receiving stream turbidity to exceed 50 NTU. If receiving stream background turbidity exceeds 50 NTU, effluent shall not cause this background value to increase." PEOPLE • PRIDE • PROGRESS 700 N. Tryon Street • Suite 205 • Charlotte, NC 28202-2236 • (704) 336-5500 0 Fax (704) 336-4391 - - = Mr: Dave Goodrich- --,.., . Paw Creek Petroleum Terminal NPDES Permit Renewals April 17, 2001 Page 2 The permits require quarterly turbidity monitoring at the effluent. The permits do not require upstream or downstream monitoring for turbidity. Without instream monitoring requirements, compliance cannot be determined. Individual Facility Comments - - - • Williams Terminals Holdings, L.P. - Permit # NC0074705 An error was noted on the fact sheet for this facility. The background section refers to a detention pond which is used to hold wastewater prior to discharge. MCDEP has determined that the treatment works for this facility do not include a detent' n pond. • Exxon Mobil Refining and Supply Company - Permit # NC0004839 Outfall 001- The daily maximum permit limit for benzene is listed as 1.2µg/l. The North Carolina water quality standard for WS-IV waters is 1.19µg/l. • Marathon Ashland Petroleum, LLC _ Permit # NC0046213 The last footnote on the Effluent Limitations and Monitoring Requirements page of the permit states, "There shall be no direct discharge of tank (or pipe) contents following hydrostatic testing unless benzene concentration is less than 71.4,ug/1 and toluene concentration is less than 1 l,ug/l." Since the receiving stream is a class WS-IV water, the benzene limit should be 1.19�zg/l. • Colonial Pipeline Company - Permit # NC0031038 Y . MCDEPs past inspections of this facility indicate that the retention pond located on -site receive§ flow from theee intermitient streams. While the streams are classified as ; intermittent by USES, terminal personnel have indicated that the streams have perennial flow. In addition, stormwater discharges from the Citgo facility (NC0021962) and Crown Central Petroleum Corporation (NC0046531) flow to Colonials' retention pond before entering the receiving stream. Since these conditions exists prior to the outfall location (sampling point), MCDEP has concerns that these influences may constitute dilution of the waste stream and effluent analysis may not be totally representative of the facility's wastewater characteristics. In addition, Colonial could potentially be liable for impacts from off -site sources. 0 Mr. Dave Goodrich:. Paw Creek Petroleum Terminal NPDES Permit Renewals April 17, 2001 Page 3 - If you have any questions regarding these comments, or any other matters, please feel free to give me a call at 704/336-5500. Thank you. Sincerely, .7 G Rus ozzelle Water Quality Program Manager cc: Teresa Rodriguez - DWQ Natalie Sierra - DWQ Derrick Harris - MCDEP Sent By:,.;. 919 821 0337,•- May-2-01 16:32; Page 2/3 WII13AM Il. vVCATITUT U100 i Szecuta: poses May 2, 2001 COUNCIL 1 r CIL A 04&16n of rile American Ae&acwn lnstift' surrE 285D • 150 FAYUMVILLE ST. MALL RALE10H. NC 27601 010/528-5436 6 FA f G10/821.0=7 Mr. Rick Shiver Water Quality Regional Supervisor Division of Water Quality NC DENR 127 Cardinal Drive Ext. Wilmington, NC 28405-3845 Re: NPDES Pcrrnit Renewals Paw Creek Petroleum Pipeline and Distribution Terminals Charlotte (Mecklenburg Coimty), North Carolina Dear Mr. Shiver: . Thank you for.the professional manner in which the public hearing on the petroleum terminals' NPDES permits was conducted in Charlotte on April 19, 2001. The purpose of this letter— which 1 request be included in the official hearing record — is to express my members' strong concern about the way MTBE is being addressed in the terminals' draft permits. The North Carolina Petroleum Council — a division of the American Petroleum Institute, the trade association for the nation's major fuel suppliers -- is committed to insure that the opportunity for public: hearings and comment is an integral part of govenunent decision -making - So we simultaneously praise the process that allows us to submit this statement for the record, while we point with alarm to the proposed MTBE limit of 11-6 ug/L that has been included in the draft permits without a single hearing or any official review by a ndemaking body. We asked the Department (DENR) to help us understand how this limit came about. We were told that there is no surface -water standard for MTBE. Further, we were advised that the proposed MTBE limit has not been endorsed by the Environmental Management Commission has not been debated by those publicly appointed members - has not been the subject ofpublic hearings at all. In fact, the EMC recently dealt with the matter of WBE and voted not only to reject a request for a temporary groundwater standard of 70 ppb, but also to reaffirm *the vaiuc of public hearings by calling for a permanent rulemaking process to tighten the MTBE groundwater aiyd 3 . Soo as -M Ili Wwait 13W tunas ns tha pwavasal, we are now confronted with Sent By: 919 821 0337; May-2-01 16:32; Mr. Dick Shiver May 2, 2001 Page 2 draft NPDES permits that attempt to install an MTBE limit that is at best controversial and at worst a circumvention of the EMC. It is my understanding that MTBE was not an issue for the Department in the NPDES permits issued five year ago. To be sure, in the intervening years it has been an issue of increasing attention, study, debate and speculation. Apparently some individuals have been so moved by the growing debate that hasty changes in risk calculations and other values have occurred. A few advocates within the Department who sounded the alarm so vigorously in statements to the EMC In support of an MTBE groundwater standard of 70 ppb have now changed their minds! What had been a certainty one month was abandoned the next in favor of a new calculation — and a new limit level. So, if public health considerations arc truly moving this fast, if numbers are hastily abandoned and recalculated, if the science is in such a state of flux, then our commitment to reasoned public input is all the mare appropriate and needed to ineure that the calculations of today are not abandoned tomorrow. The Council's members accept that an MTBE limit that has been peer -reviewed and duly considered via the rulemaking process may be appropriate for inclusion in the terminals' NPDES permits. Tucking that, however, the Council believes the MTBE limits contained in the draft permits should be removed. Importantly, the Council's members with facilities in Charlotte are willing to help the Department collect MTBE data by monitoring for it on a periodic basis. But the proposed monthly monitoring requirement is excessive. We are confident that semi-annual monitoring by each of the terminals will provide the needed representative data to form the basis for future decision -making. Sincerely, f William H. Weatherspoon c: Ms. Natalie Sierra SURFACE WATER QUALITY STANDARDS OR CRITERIA FOR PETROLEUM -RELATED CONTAMINANTS,": CONTAMINANT CAS # "C" & "B" WATERS (ug/l unless noted otherwise) 11WS-1" - "WS-V" WATERS WATERS (ug/i unless noted otherwise) SOURCE OF STANDARD. OR CRITERIA } BENZENE 71-43-2 71.4 1.19 71.4 15A NCAC 2B .0211-.0222 n-BUTYL BENZENE 1104-51-8 36 36 36 ECOTOX 4/98 sec -BUTYL BENZENE 1 135-98-8 41 41 41 ECOTOX 4/98 CHLOROFORM 67-66-3 470 5.7 470 EPA 4/22/99 ETHYL BENZENE 1100-41-4 383 524 130 ECOTOX 1/01 IPE i 108-20-3 19 mg/L 19 330 mg/I ECOTOX 1/01 ISOPROPYL BENZENE ! 98-82-8 316 186 4.6 mg/I ECOTOX 1/01 p-ISOPROPYL BENZENE r 99-87-6 325 325' 1.1 mg/I ECOTOX METHYLENE CHLORIDE 1 75-09-2 1600 4.7 1600 EPA4/22/99 MTBE 1634-04-4 2393 11.6 2393 NC DHHS 7/11/00 NAPHTHALENE i 91-20-3 105 43' 64 ECOTOX 1/01 n-PROPYL BENZENE i 103-65-1 77.5 77.5 190 ECOTOX 1/01 1,2,4-TRIMETHYLBENZENE 95-63-6 386 72 218 ECOTOX 1/01 1,3,5-TRIMETHYLBENZENE 108-67-8 626 100 215 ECOTOX 1/01 TOLUENE 108-88-3 11 (0.36 Tr) 11 (0.36 Tr) 185 15A NCAC 213.0211- .0222/ECOTOX 8/99(SW)* XYLENE, TOTAL 1330-20-7 88.5 88.5 1370 ECOTOX 1/01 i. Criteria which have a source of EPA ECOTOX were developed using EPA's ECOTOX database per 15A NCAC 2B .0208. Last update 2/2/01 (DMR) These concentrations are updated regularly. Questions or criteria for other parameters not found in the 15A NCAC 2B .0200s can be addressed to Dianne Reid at 919.733.5083 extension 568 (Dianne.Reid@ncmail.net) OR Jason Wynn ext. 351 (Jason.Wynn@ncmail.net) s; i; i. s Permit Requirements for Discharges from Oil & Petroleum Storage Facilities 2001 Permitting Strategy Background / Introduction In 1996, the Permits and Engineering Unit reviewed NPDES permit monitoring requirements for stormwater discharges at oil terminal facilities located in the Greensboro and Charlotte areas. This review revealed inconsistencies in monitoring requirements that were subsequently discussed with staff of the Winston-Salem and Mooresville regional offices. These discussions and a review of past information collected at these facilities formed the basis for much of the standard monitoring requirements contained in this Standard Operating Procedure (SOP) for Stormwater Discharges from Oil Terminal Facilities. In accordance with the basinwide planning schedule, the NPDES permits for the oil terminal facilities are due for renewal in 2001. The NPDES unit has reviewed the discharge monitoring reports (DMRs) for the facilities in order to assess the SOP currently in place. This led to some revisions and additions to the existing procedure; the bulk of the 1996 SOP will be carried over into the 2001 revised SOP. This document is divided into three sections that delineate the permitting requirements for oil terminal facilities. The first part describes the minimum requirements for all oil terminal facilities in the state — both monitoring requirements and permit limits. The second section describes potential additional site -specific requirements that are based upon the performance of a reasonable potential analysis for the facility. Such requirements are based upon reported data from the Discharge Monitoring Reports (DMRs) of a given facility. The third and final section delineates additional requirements for those facilities which discharge to receiving waters carrying a water supply classification. I. Minimum Requirements for ALL Oil Terminal Facilities A. Flow Episodic Monitoring (monitor with each discharge event) Measurement of flow is to be representative of a discharge event. Many oil terminal facilities have storage ponds to collect runoff and therefore, discharges may not always occur during storm events. Flow should be monitored by one of the following methods: 1. Measure flow continuously, or 2. Calculate flow based on the area draining to the outfall, the built -upon area, and the total rainfall, using the rational equation (see below), or 3. Estimate by flow measurement at 20 minute intervals during the entire discharge event, or 4. Base flow on pump logs. The rational equation: Q=KuCIA, where Q = flow (peak flow rate (cfs or m3/sec) Ku = units conversation factor = 1.008 for U.S. standard units (usually ignored because it is so close to 1), or 0.278 for SI units C = dimensionless runoff coefficient for the watershed, loosely defined as the ratio of runoff to rainfall I = intensity of rainfall taken from the intensity -duration -frequency curves for the specified design return period at the time of concentration tc, (in/h or mm/h) tc = time of concentration - time after the beginning of rainfall excess when all portions of the drainage basin are contributing simultaneously to flow at the outlet A = area of tributary watershed (acres or km2) The rational equation is used to calculate the runoff from a region, given: ➢ the runoff coefficient which accounts for infiltration and other potential losses in the region, ➢ the rainfall intensity to the region, ➢ the time it takes for runoff to travel from the region's upper reaches to its outlet, and ➢ the region's drainage area. For oil terminal facilities with large storage ponds that serve to collect runoff, item 2 listed above and the rational equation should not be used because the calculations will determine the flow to the storage pond, rather than the flow from the pond. Page 1 of 8 Version 7/30/01 Permit Requirements for Discharges from Oil & Petroleum Storage' Facilities B., Acute Toxicity: Fathead Minnow (Pimephales promelas) 24-hr, Annual _- Monitor annually (assuming first five discrete storm events have already been monitored and:::_. showed no toxic effects) L. 'Monitoring Footnote: acute toxicity monitoring should occur during collection of BTEX parameters (see item E below) Products stored at oil terminals may contain a variety of different chemicals (some of which may have harmful or toxic effects). To verify that toxic chemicals are not discharged to surface water, a periodic toxicity test will be required. An acute, rather than chronic, toxicity test is required because oil terminal facility discharges are typically. short-term, episodic events. Specifically, an acute.24-hour pass/fail at 90% waste concentration using fathead minnows is the recommended toxicity test for stormwater discharges. Facilities that meet one or more of the following criteria will not qualify for annual monitoring and will be required to monitor for acute toxicity during five storm events: 1. Facilities that have never monitored for acute toxicity during a storm event, or 2. Facilities that monitored for acute toxicity during four or fewer storm events during the last permit period, or 3. Facilities that completed five acute toxicity tests during five storm events, but did not pass all five tests. Facilities that fail an acute toxicity test conducted during one or more of the five storm events or during an annual monitoring event will be required to conduct quarterly monitoring for the forthcoming permit period, and must receive State approval for reduced monitoring. For facilities that have not yet conducted acute toxicity testing for the first five discrete storm events, a statement in the permits will allow for additional toxicant limits should the toxicity test indicate toxic effects. At the time of permit renewal, only annual monitoring for toxicity would be required if the facility has performed the five discrete sampling requirements with no acute toxicity. C. Total Suspended Solids Monitor monthly Daily maximum 45.0 mg/1 Historically, Total Suspended Solids (TSS) has not been a significant problem in stormwater discharges at oil terminal facilities. A 1996 analysis of TSS data from five stormwater discharges indicated only one event in excess of the previously permitted 30.0 mg/1 monthly average. A daily maximum limit of 45 mg/L is recommended as a general indicator of stormwater quality. A daily maximum compliance period is given to reflect the sporadic nature of these discharges. Should TSS monitoring data indicate any substantial problems, the Regional Office or county may elect to enforce the instream standard for turbidity. D. Oil and Grease Monitor monthly - No Limit Monitoring Footnote: Where possible, the grab sample for oil and grease should be skimmed from the water .surface of a quiescent (calm water) zone. - - Historically; oil and grease has not been a significant problem in stormwater discharges at oil terminal - facilities. However, like TSS, oil and grease is a good general indicator of the quality of a stormwater coming from a site. Where possible, oil and grease samples should be skimmed from the surface of a quiescent zone closest to the discharge. E. BTEX Monitor monthly — No Limit Benzene, toluene, ethylbenzene and xylene are toxicants commonly found in petroleum. The previous permitting strategy for the oil terminals required the EPA 624/625 scan, which, among other contaminants of concern (see Part II), detects BTEX compounds. A review of the discharge monitoring report data from the previous permitting cycle indicates that these four contaminants frequently appear in stormwater from terminal facilities. For the most part, the other volatiles and semi-volatiles detectable by the EPA 624/625 Page 2 of 8 Version 7/30/01 ` Permit Requirements for Discharges from, Oil & Petroleum Storage Facilities scan were never detected in the stormwater from these facilities.' By monitoring for BTEX and naphthalene (see part F, below), the facilities are collecting data on those pollutants that are mostly likely to be present, in' the water. F.; EPA Method 625 Monitor semi-annually The intent of this monitoring requirement is to monitor for naphthalene and other indicators of middle distillate compounds detectable by Method 625. These contaminants are commonly found in heavy fuels, such as diesel. During site visits of terminal facilities performed by members of the NPDES Unit, it was observed that the majority of the terminals reserve at least one storage tank for diesel fuel. Originally, facilities were to have monitored only for naphthalene, but since the most accurate method of quantifying naphthalene is through Method 625 and other middle distillate compounds can be detected through this scan, the entire results should be reported to the Division. ' If it can be demonstrated by the permittee that diesel fuel is not currently being stored on site, then the monitoring requirement on the effluent page will have the following footnote: *"Monitoring requirement applies only for facilities storing diesel or other heavy fuels on site." G. Tank Solids, Tank Bottom Water, and Rag Layer No direct discharge of tank solids, tank bottom water, or the rag layer is permitted. There are typically four discrete layers of varying thickness within a storage tank. At the very bottom of the tank is the solids layer that achieves a 1/2-1 inch thickness over a 5-6 year period. Immediately above the solids layer is 1-6 inches of tank bottom water that results from rainwater breaching the wall seal in open roof tanks. Open roof tanks are not.completely open, but have a roof floating directly on the product. There is a seal between the tank walls and floating roof designed to prevent water from entering the tank. Water breaching this seal and entering the tank is referred to as tank bottom water. The rag layer is at most 3/4 inch thick and forms the interface between the tank bottom water and the product. The product is the topmost layer and is 20-25 feet. Normally, the tank bottom water is removed from the tank when it is 3-4 inches deep. The mixture of water and product in the rag layer is often drawn off when tank water is removed because water entering tanker trucks must be minimized. As a result of potentially high levels of organic compounds in the three bottom layers of storage tanks, they are not to be discharged, but instead should be transported off -site for appropriate treatment and/or disposal or treated/recovered onsite if treatment technology capabilities occur onsite. H. Hydrostatic Testing Hydrostatic testing of oil tanks normally occurs once every five to six years. Prior to the hydrostatic testing, the tank is completely drained and tank bottom materials are handled as described in the previous section. The tanks are completely cleaned and then coated and welded (if necessary). The tank is then filled with water for the hydrostatic test. Some oil terminal facilities use stream or lake water to hydrostatic test their tanks, while others use potable city water. Because the tank is thoroughly cleaned prior to refilling with water for the hydrostatic test, water discharged from the tank following the hydrostatic test should be fairly clean. However, tank discharges following hydrostatic testing may contain contamination. Therefore, monitoring of the tank water prior to direct discharge will be required. There shall be no direct discharge from oil terminal facilities following hydrostatic testing if concentrations of benzene and/or toluene are greater than their respective water quality standards (see effluent pages at end of SOP for details). I. MTBE Monitoring Monitor monthly Within the last year, the Environmental Protection Agency has recommended banning methyl tertiary butyl ether (MTBE), an ingredient commonly used in gasoline to aid in the reduction of air pollution. MTBE was originally added to gasoline in response to a 1990 law that required higher oxygen content in gas sold in the most -polluted cities. It has since become a cause for concern since the EPA now believes that MTBE may be a carcinogen and is seeking to outlaw the compound. Since MTBE contamination of water is a public health concern, monthly MTBE monitoring will be added to all facilities. For those facilities currently monitoring for MTBE, reasonable potential analysis will be performed to assess the need for an MTBE limit. In non -water supply waters, the instream MTBE standard Page 3 of 8 Version 7/30/01 Permit Requirements for Discharges from Oil & Petroleum Storage Facilities .:: is 2393 µg/L, and is unlikely to be violated:- All facilities discharging to water supply waters will have a-- special condition added to the permit that pertains to MTBE monitoring and source reduction (see Part IL>;`Additional Site,. -Specific Requirements A. EPA Method 624 Monitor semi-annually, The entire 624/625 scan was originally included in the SOP to assess which of the petroleum -associated organic chemicals are found in stormwater. These tests scan for volatile and semi -volatile organics and cost approximately $700 to run (Ray Kelling, personal communication 2/ 14/01). Currently, the oil terminal facilities are performing the scan twice a year. Most facilities obtain results consisting entirely of non -detects, but a few have detected one or more of the compounds on the 624/625 list. Tables 1 and 2 summarize the compounds included in the scans and note those parameters detected during the last permitting cycle. _ After a review of the data and discussions with different members of the Division of Water Quality Point Source Branch, it has been decided to assign semi-annual monitoring using EPA Method 624 to any of the facilities that detected any compound listed in Table 1 that is not benzene, toluene, ethylbenzene, xylene or naphthalene (as these were found in most discharges and are covered by monitoring requirements listed above). Table 1. Compounds detectable by EPA Method 624 PARAMETER Acrolein DETECTED IN OIL TERMINAL STORMWATER? Acrylonitrile Benzene J Bromodichloromethane Bromoform Bromomethane Carbon tetrachloride Chlorobenzene Chloroethane ✓ Dibromochloromethane 1,2-Dichlorobenzene 1,3-Dichlorobenzene 1,4-Dichlorobenzene 1, 1 -Dichloroethane trans- 1, 2-Dichloroethene 1,2-Dichloro ro ane cis- 1,3-Dichloro ro ene trans-1, 3-Dichloro ro ene Ethyl benzene ✓ Methylene chloride ✓ 1,.1, 2, 2-Tetrachloroethane Tetrachloroethene -- - Toluene - - _..... 1, 1, 1 -Trichloroethene 1,1, 2-Trichloroethene Trichloroethane Trichlorofluoromethane J Vinyl chloride J - Page 4 of 8 Version 7/30/01 Permit requirements for Discharges from Oil & Petroleum Storage Facilities Table 2. Compounds detectable by EPA Method 625 PARAMETER Acena hthene DETECTED IN OIL TERMINAL .- „. Acena hth lene` Anthracene: Benzo a anthracene Benzo b fluoranthene Benzo k fluoranthene Benzo a rene Benzo(ghi)peiylene Benzyl butyl phthalate Bis 2-chloroeth 1 ether Bis 2-chloroetho methane Bis 2-eth the 1 hthalate Bis 2-chloroiso ro 1 ether 4-Bromophenyl phenyl ether - 2-Chlorona hthalele 4-Chlorophenyl phenyl ether Chrysene Dibenzo a,h anthracene Di-n-bu 1 hthalate 1,3-Dichlorobenzene 1,2-Dichlorobenzene 1,4-Dichlorobenzene 3, 3'-Dichlorobenzidine Diethyl phthalate Dimeth 1 phthalate 2,4-Dinitrotoluene 2,6-Dinitrotoluene Di-n-octylphthalate ✓ Fluoranthene Fluorene Heptachlor Hexachlorobenzene Hexachlorobutadiene Hexachloroethane Indeno 1,2,3-cd ene Iso horone Naphthalene ✓ Nitrobenzene N-Nitrosodi-n-propylamine PCBs Phenanthrene ✓ rene Toxa hene 1,2,4-Trichlorobenzene 4-Chloro-3-meth 1 henol 2-Chloro henol 2,4-Dichloro henoI 2,4-Dimeth 1 henol 2,4-Dinitro henol 2-Meth 1-4,6-dinitro henol 2-Nitrophenol 4-Nitrophenol Pentachloro henol Phenol 2,4,6-Trichloro henol Page 5 of 8 Version 7/30/01 Permit Requirements for Discharges from Oil & Petroleum Storage Facilities B: Reasonable Potential (General) The reasonable potential procedure is a method used to determine the potential of a discharge to violate a _ water quality standard for a given parameter based on existing data. If a parameter is determined to have reasonable potential to violate a water quality standard,'a limit and monthly monitoring will be required. A parameter is determined to have reasonable potential to violate a water quality standard if a calculated maximum predicted effluent concentration is greater than the allowable effluent concentration. Reasonable potential is determined by performing a statistical analysis for each parameter of concern that has either a state or federal water quality standard. For each parameter, the statistical analysis works best with a minimum of eight to twelve data points (from DMRs) although the more data points used, the more accurate the analysis. The statistical analysis allows one to calculate a maximum predicted effluent concentration based on the existing data set. A step-by-step procedure for determining whether or not a parameter should be limited based on reasonable potential determination follows: STEP 1. Determine the number of sample points (n) - 2. Determine highest value from data set. Best professional judgment should be used by the reviewer so as not to use an outlier. Since an outlier will not be determined statistically, maximum values should rarely be discarded in this analysis. 3. Determine the coefficient of variation (CV = STD DEV/MEAN) 4. Determine the appropriate multiplication factor to be used by comparing the number of samples versus the co -efficient of variation (see Table 3-1) 5. Multiply the highest value from the data set (Step 2) by the multiplication factor determined in step 4 to obtain the maximum predicted effluent concentration. 6. Compare the value from Step 5 (the maximum predicted effluent concentration) with the allowable effluent concentration, which is based on instream dilution and the corresponding water quality standard. EPA recommends that permitting authorities find reasonable potential when the maximum predicted effluent concentration is greater than the allowable effluent concentration. A spreadsheet has been developed to expedite this analysis. It is titled "Toxicant Spreadsheet" and is located on the NPDES server. The spreadsheet requires the input of the facility name and permit number, the waste flow (Qw), 7Q 10 flow, pollutant name, state or federal water quality standard, and the DMR data points with appropriate units. The spreadsheet then computes the standard deviation, mean, and coefficient of variation for the entered data points. The coefficient of variation is then used along with n (the number of data points entered in the spreadsheet) to determine the Multiplication Factor. This Multiplication Factor is entered into the Toxicant Spreadsheet to calculate the maximum predicted concentration. If the maximum predicted effluent concentration is greater than or equal to the allowable effluent concentration, (or in other words, if there is reasonable potential for a water quality standard violation), the parameter should be limited (as a daily maximum) and monitored on a monthly basis. The daily maximum limit shall be equal to the standard for that parameter multiplied by the dilution of the receiving stream under summer 7Q 10 conditions for non -carcinogens. Average flow should be used for carcinogens and 30Q2 flow should.be used for aesthetic standards. If a facility monitors semi-annually (twice/year), 10 data points would be obtained over a five-year permit - period which is slightly more than the minimum number of data points which will accurately characterize an effluent discharge (USEPA March 1991). In cases where a facility requests reconsideration of a limit requirement, monthly monitoring should be required for at least 10 months so that 10 data points can be obtained and a second reasonable potential calculation can be conducted. If there is no reasonable potential for a water quality violation, monitoring should be reduced (to semi-annually). Page 6 of 8 Version 7/30/01 Permit Requirements for Discharges from Oil & Petroleum Storage Facilities C. Turbidity Monitoring (Paw. Creek terminals) Monitor quarterly..- (Monthly monitoring and limit'of 50 NTU if facility demonstrates reasonable potential) Based on concerns regarding anti -backsliding, the EPA requested the Division re-examine the basis for the elimination of turbidity monitoring for 12 of the 14 Paw Creek oil terminals that were required to monitor for turbidity prior_ to the most recent permit renewal. This second examination of the data showed that there were turbidity standard violations since the last analysis at several of the oil terminals. The Division therefore acknowledges that its second evaluation resulted in a different outcome from the initial investigation and agrees that turbidity monitoring should be added to the discharge permits for the oil terminals in Paw Creek. Facilities were sent notice in February 1999 that quarterly turbidity monitoring would be required at the facility effective March 1, 1999. If sufficient data exist, then reasonable potential should be performed to assess the need for more frequent monitoring and a limit of 50 NTU. For all facilities, the following footnote will be placed on the effluent limits page: *Turbidity — Effluent shall not cause receiving stream turbidity to exceed 50 NTU. If receiving stream background turbidity exceeds 50 NTU, effluent shall not cause this background value to increase. III. Additional Monitoring Requirements for Water Supply (WS) Waters A. Phenol Monitor monthly (Limit assigned if reasonable potential is demonstrated) Phenol is a common component of petroleum compounds stored in terminals, can result in tainting of fish tissue, and can cause taste and odor (organoleptic) problems in drinking water. In addition, phenol discharged from terminals could combine with chlorine in water treatment facilities to form chlorinated phenols. Limiting the discharge of phenol into water supply classified waterbodies could reduce chlorinated phenol formation and their concentration in drinking water. As a result of the expected occurrence of phenol in oil terminal facility discharges and the possibility of chlorinated phenol formation, phenol will be monitored on a monthly basis in water supply classified waters. Based on an extensive review and analysis of data collected during the last permitting cycle, the facilities are no longer required to monitor for chlorinated phenols, since none were ever detected in oil terminal effluent. The concern over limiting phenols lies in the need to inhibit formation of chlorinated phenolic compounds at downstream water treatment plants. Joe Corporon of the NPDES Unit calculated an allowable phenolic loading for each terminal in Mecklenburg County that will prevent a downstream violation of the NC State standard for phenols of 1 µg/L. Meg Kerr wrote a similar memo for those terminals in Guilford County in 1983. Reasonable potential will be performed using these allowable phenolic loadings (see attached memo). Be-_-. Benzene Monitor monthly Daily maximum limit - 1.19 µg/1 * dilution of the receiving stream under average flow conditions Benzene is a known carcinogen and can pose a potential health risk to humans consuming water with benzene. The water quality standard for benzene in waters classified as water supplies is 1.19 µg/l. The daily maximum limit for these facilities is therefore 1.19 multiplied by the dilution of the receiving stream under average flow conditions (rounded to two significant digits). This limit may be excluded from the permit only if there are sufficient data (eight sampling events) to demonstrate "no reasonable potential." If there is no reasonable potential, there will only be a monthly monitoring requirement. Page 7 of 8 Version 7130/01 Permit Requirements for Discharges from Oil & Petroleum Storage Facilities C. MTBE Monitor monthly MTBE special condition. Given that this -compound is considered a possible carcinogen, there should be a greater effort to keep high levels of MTBE out of water supply waters. As per the Paw Creek Hearing Officer's Report, after one year of monthly MTBE samples have been recorded, the facility must review the MTBE data. If no MTBE has been detected in the effluent samples, the facility may request a minor modification to the permit reducing the frequency of MTBE monitoring. If, however, MTBE has been detected during any of the discharge events, the Permittee must develop a plan of action to reduce the levels of MTBE entering the receiving stream. It is anticipated that an MTBE criterion for surface waters will be established at the time of the next permit renewal. At that time, sufficient data will be available to assess the reasonable potential for a facility to exceed any such standard or criterion. REFERENCES Dodson, Roy D., January 1996. Computing Peak Flow: Which Method Is Most Rational?. Civil Engineering News. Kelling, Ray, (Division of Water Quality Chemistry Lab). June 1996. Conversations with P. Clark. Kelling, Ray, (Division of Water Quality Chemistry Lab). February 2001. Conversations with N. Sierra. Linville, Ron, (Winston-Salem Regional Office). March 1996. Telephone conversation with P. Clark. Reid, Dianne, (Division of Water Quality - Planning Branch). June 1996. Conversations with P. Clark. Shiver, Rick, (Wilmington Regional Office). July 2001. Findings and Recommendations for Public Hearing Held on April 19, 2001. USEPA. March 1991. Technical Support Document For Water Quality -Based Toxics Control. EPA/505/2- 90-001. Page 8 of 8 Version 7/30/01 DENR/DWQ FACT SKEET FOR NPDES PERMIT DEVELOPMENT NPDES No. NCO022187 BACKGROUND Mofiva Enterprises purchased the subject facility from Star Enterprises in September 1998. At the time, the facility was only discharging stormwater collected in the diked areas surrounding the bulk storage tanks. Water from the truck loading area drains to a holding tank and is hauled off -site. In December 1999, a permit modification was issued that combined an existing general permit (NCG510177). for groundwater remediation and. NCO022187 (for stormwater). The groundwater permit was rescinded and the discharges combined under NC0022187. The 'facility now discharges both remediated groundwater and stormwater through outfall 001. Prior to release, the two flows are combined and held in a containment basin. The water is then manually released as needed. FILE REVIEW Correspondence Correspondence files from August 1996-2000 were reviewed. During this time period, the Mecklenburc, County Department of Environmental Protection (MCDEP) performed four inspections. The facility received satisfactory ratings for all of these inspections. Grab samples taken during the MCDEP compliance inspections indicate low levels of total suspended solids (TSS) and non -detects for the volatiles and semi-volatiles detectable by the EPA 624/625 scan. This facility is one of twelve in Paw Creek that received a February 22, 1999 letter requiring effluent turbidity monitoring on a quarterly basis. DNM Review: DMRs were reviewed from August 1996 through January 2001. Discharges from 001 occur approximately once per month; the mean flow for the period reviewed was 0.061 MGD. The maximum flow (used below in the reasonable potential calculations) was 0.257 MGD. The addition of the groundwater remediation effluent has increased the average flow by about 30%. Total suspended solids during this time averaged 6.7 mg/L with a maximum of 33 mg/L. Oil and grease was not detected in the effluent (with detection levels ranging from 0.5 mQ/L to 5 mg/L). The twice -annual EPA 62A25 scan did not detect most of the semi-volatiles and volatiles tested. There was one ethyl benzene detect of 6 ug/L in April 1998. The facility passed its acute toxicity test from 1997 — 1999; the organisms from the 2000 sample had an 86.1% survival rate (which does not appear to have been counted as a "fail" by the Aquatic Toxicology Unit). Fact Sheet NPDES NCO022187 Renewal Page 1 SinceMarch 1999, the facility has been required to sample for turbidity quarterly as per, an EPA - directive. They have not sampled at all since this requirement was made. Reasonable Potential Analysis: Reasonable Potential Analysis was run for phenol, ethyl benzene, MTBE, manganese, iron, lead, and toluene. All other measured parameters were not detected during the four and half year period of data review, and therefore indicate no reasonable potential to cause a violation. Reasonable potential to violate NC standards was found for the following: • MTBE • Manganese • Iron • Lead Iron and lead are action level pollutants; since no toxicity violations have occurred, they will not be limited. PERMITTING STRATEGY The permitting strategy for this and all oil terminals in the state is based upon a 2001 NPDES document entitled, "Permit Requirements for Discharges from Oil and Petroleum Storage Facilities." This document is based upon a 1996 SOP and has been updated after a data review and internal discussions. It delineates monitoring frequencies and permitting limits for contaminants commonly found at these sites. Below, it is referred to as the "2001 SOP." Waste Load Allocation (WLA). The last waste load allocation was performed. in 1994. The facility was not only under different ownership, but only discharging stormwater. Turbidity, BTEX, MTBE, and naphthalene monitoring are recommended along with phenol, TSS, and oil and grease limits. Oil Terminal SOP: The toxicity, TSS, and oil and grease requirements specified in the previous permit and the 2001 SOP (Parts I.A. — I.D.) remain unchanged. The facility will be required to monitor monthly for the BTEX parameters as per Part I.E. of the SOP. Since the DMRs indicated only a detect of ethyl benzene (monitored through the BTEX requirement and not demonstrating reasonable potential) in the reporting of EPA Methods 624/625, this requirement will be removed as per Part II.A. of the SOP. Limits will be required for MTBE and manganese duet to demonstration of reasonable potential (as per. Part II.B). As per parts I.G. and I.H. of the 2001 SOP, there can be no direct discharge of tanks solids, tank bottom water or the rag layer, and no direct discharge of hydrostatic test water if concentrations of benzene and/or toluene exceed the water quality standard. Part H.C. lists a requirement specific to the Paw Creek terminals — quarterly turbidity monitoring as mandated by the EPA. Because this facility has not performed the turbidity monitoring as required, reasonable potential cannot be assessed and monthly monitoring shall be assigned. The requirements of the groundwater general permit (NCG5 1 0000are included in this permit as follows: • Monthly lead monitoring • Monthly 1,2 Dichloroethane monitoring • Monthly fluorene monitoring • Monthly naphthalene monitoring • Monthly phenanthrene monitoring • Monthly phenol monitoring Monthly iron monitoring • Monthly manganese monitoring A December 2000 request for a permit modification put forth the suggestion that flow be monitored as in all the permits for bulk oil storage in the state (Part I.A. of the SOP). This can be done, but the monitoring frequency will be listed as "episodic" instead of monthly since there have been occasions when the facility discharges two or more times in a given month. SUMMARY OF PROPOSED CHANGES • Addition of MTBE limit • Addition of manganese limit Fact Sheet NPDES NCO022187 Renewal Page 2 Addition of monthly turbidity monitoring Removal of EPA Methods 624/625 Change flow requirement to episodic with sample type identical to that of the other bulk storage facilities. PROPOSED SCHEDULE FOR PERMIT ISSUANCE Draft Permit to Public Notice: March 14, 2001 Permit Scheduled to Issue: April 27, 2001 NPDES DIVISION CONTACT I you have questions regarding any of the above information or on the attached permit, please contact Natalie Sierra at (919) 733-5083 ext. 551. NAME: REGIONAL OFFICE COMMENTS DATE: k(L) C 0 M M NAME: //1�EUGu i �D . _. M AY - 2 2001 DFHR - W,1TEI IALIiY P-OiMT L;jiL:7-'; H DATE: SUPERVISOR: DATE: G� Fact Sheet NPDES NCO022187 Renewal Page 3 f SOC PRIORITY PROJECT: Yes No X To: Permits and Engineering Unit Water Quality Section Attention: Valery Stephens Date: April 11, 2001G�� NPDES STAFF REPORT AND RECOMMENDATION 0 om County: Mecklenburg I o W W 00 MRO No.: 01-53 Permit No. NCO022187 !� N PART I - GENERAL INFORMATION 1. 2. 3. Facility and Address: Ie:3 ¢ Uo o� Motiva Enterprises ��-v`773-� 410 Tom Sadler Rd. Paw Creek, North Carolina 28214 Date of Investigation: 04-03-01 Report Prepared By: Samar Bou-Ghazale, Env. Engineer I 4. Persons Contacted and Telephone Number: Mr. Larry Couch, Terminal Manager; (704) 399-3301 5. Directions to Site: From the junction of Highway I-85 and Highway 27 in Charlotte, travel west on Highway 27 (Freedom Drive) approximately three (3) miles to Old Mt. Holly Road. Turn right onto Old Mt. Holly Road and travel approximately 0.2 mile to Tom Sadler Road. Turn left onto Tom Sadler Road and travel approximately 0.2 mile. Motiva Enterprises is located on the right (north) side of Tom Sadler Road. 6. Discharge Point(s). List for all discharge points: Latitude: 35' 16' 59" Longitude: 800 56' 10" Attach a U.S.G.S. map extract and indicate treatment facility site and discharge point on map. USGS Quad No.: F 15 SW USGS Quad Name: Mountain Island 7. Site size and expansion are consistent with application? Yes X No If No, explain: 8. Topography (relationship to flood plain included): Sloping north toward an intermittent stream at the rate of 2 to 60. 4 The site is not located in a flood plain. 9. Location of nearest dwelling: None within 1000 feet of the discharge point. 10. Receiving stream or affected surface waters: Unnamed tributary to Gum Branch. a. Classification: WS IV b. River Basin and Subbasin No.: Catawba River Basin; 030834 C. Describe receiving stream features and pertinent downstream uses: Discharge is into an intermittent stream on the north side of the site. This stream flows through an undeveloped area prior to merging with a tributary to Gum Branch. There are several other industrial and domestic wastewater discharges into Gum Branch. PART II - DESCRIPTION OF DISCHARGE AND TREATMENT WORKS 1. a. Volume of wastewater to be permitted: Discharge is intermittent depending on rainfall. The types of fuels stored are regular unleaded, premium unleaded and mid -grade gasoline (which is a mixture of regular unleaded and premium unleaded), high sulfur diesel, and low sulfur diesel. The permitted discharge from the Groundwater remediation system is 0.0144 MGD. b. What is the current permitted capacity of the wastewater treatment facility? N/A. C. Actual treatment capacity of the current facility (current design capacity)? N/A. d. Date(s) and construction activities allowed by previous Authorizations to Construct issued in the previous two years: N/A e. Please provide a description of existing or substantially constructed wastewater treatment facilities: The existing treatment facilities consist of an oil/water separator located below the loading/unloading area and a pond constructed at the NPDES Permit Staff Report Page 2 lower end of the facility. The existing pond receives runoff water from the entire site as well as from the oil/water separator and the ground water remediation system. f. Please provide a description of proposed wastewater treatment facilities: N/A g. Possible toxic impacts to surface waters: Due to nature of the wastewater there could be some toxicity concern. h. Pretreatment Program (POTWs only): N/A. 2. Residuals handling and utilization/disposal scheme: Tank water bottom is handled by Four Seasons Environmental, tel# 704-527-1293. Tank solids are handled by Aaron Oil Company, Tel# 334-675-4666. 3. Treatment plant classification: Class I. 4. SIC Code (s): 5171 Primary: 53 Main Treatment Unit Code: 53000 PART III - OTHER PERTINENT INFORMATION 1. Is this facility being constructed with Construction Grant Funds or are any public monies involved (municipals only)? N/A. 2. Special monitoring or limitations (including toxicity) requests: Acute toxicity monitoring is already included in the permit. 3. Important SOC, JOC or Compliance Schedule dates: (please indicate) N/A. 4. Alternative Analysis Evaluation: Has the facility evaluated all of the non -discharge options available. Please provide regional perspective for each option evaluated. Spray irrigation: N/A Connection to regional Sewer System: N/A NPDES Permit Staff Report Page 3 5. Air Quality and/or Groundwater concerns or hazardous material utilized at this facility that may impact water quality, air quality or groundwater? Contaminated groundwater already exists at the site. Hazardous material stored at the site may be a constant threat to the groundwater. Air Quality Permits required by Mecklenburg County. PART IV - EVALUATION AND RECONblENDATIONS The wastewater from Motiva Enterprise sales terminal is treated by an oil/water separator, an oil storage tank, and a settling pond prior to discharge into an unnamed tributary to Gum Branch. From the oil storage tank the discharge travels approximately 500 feet (on the ground) around the spill containment area before entering the settling pond. The discharge from the pond is controlled by an outfall control valve, and the amount of discharge depends on rainfall. Storm water is also directed to the pond via the storm water drainage system. Also, discharge from the groundwater remediation system permit # NCG510177 is being directed to the pond. It is recommended that the NPDES permit for this facility be renewed pending review by the Groundwater section. ignature of ti. Y �— u Water Quali reparer Regional Supervisor NPDES Permit Staff Report Page 4 Date Date VIA AIRBORNE EXPRESS # 6356636053 May 23, 2001 M TIVA ENTERPRISES LLC Shell, Texaco & Saudi Aramco Working Together ,I Ms. Natalie Sierra c� North Carolina Department of Environment and Natural Resources CD = z Division of Water Quality — NPDES Unit 512 N. Salisbury St. o o w Raleigh, NC 27604 e� m o Subject: Draft NPDES Permit - NCO022187 _ W z. Motiva Enterprises LLC — Charlotte North Terminal I E-9 ` oa Charlotte, Mecklenburg County, North Carolina Dear Ms. Sierra: Per your e-mail dated April 26, 2001, Motiva Enterprises LLC (Motiva) hereby submits the following comments addressing revisions to Draft NPDES Permit NCO022187 for our Charlotte -North Terminal in Charlotte, North Carolina. As per my conversation with Ms. Valery Stephens on April 26, 2001, the comment period for Motiva was extended to May 23, 2001. Please change contact name/mailing address for the new permit to: Ms. Nicola Ellis Environmental Engineer Motiva Enterprises LLC 2232 Ten -Ten Road Apex, NC 27502 • Motiva refers to this facility as the Charlotte -North Terminal, due to the fact that Motiva operates two facilities in the Paw Creek area. Please change all references to the facility name in the permit from `Paw Creek Terminal' to `Charlotte -North Terminal'; Per your cover letter, turbidity monitoring has been added to all oil terminal facilities in the Paw Creek area. The draft permit for this facility adds a monthly requirement for testing turbidity. Motiva would like to request that the frequency of this monitoring be changed to quarterly. Motiva operates another facility, referred to as the Charlotte -South Terminal in the Paw Creek area (NPDES Permit No. NC0046892). The draft permit for the Charlotte -South facility requires quarterly turbidity monitoring; Motiva previously operated under two NPDES permits for this facility (NC0022187 & NCG510177). Since the permits were combined into one permit in January, 2000, the average MTBE effluent concentration is calculated to be 12.5 ug/L. This average value is in excess of the proposed permit limit value of 11.6 ug/L. Of the 15 discharge sampling events since the combination of the permits, seven would be in excess of the proposed limit value. Motiva requests that the limit for MTBE be raised to 25.0 ug/L to more accurately designate what the facility will be able to maintain compliance with. 2232 Ten Ten Road Apex, NC 27502 Phone: 1919) 387-5764 Fax: (919) 362-4013 w • The draft permit adds a manganese limit of 0.2 mg/L. Motiva understands that manganese occurs naturally in the environment and can be present in a suspended, particulate state, resulting in high "total" manganese results. Motiva requests that the N �' ENR uRlj at tth S amples can be filtered prior to analysis for manganese. Motiva respectfully requests that the above ist d comments be addressed prior o issuance of the final NPDES permit. If you have questions, please contact me at 919-387-5764. Sincerely, Motiva Enterprises LLC Nicola A. Ellis Environmental Engineer � �,Wtvc-s � �V� -- �O ( re Cod) � r y�u�' State of North Carolina Department of Environment and Natural Resources Division of Water Quality Michael F. Easley, Governor William G. Ross, Jr., Secretary Kerr T. Stevens, Director April 2, 2001 MEMORANDUM l,o: Britt Setzer NC DENR / DEH / Regional Engineer Mooresville Regional Office From: Natalie Sierra NPDES Unit Subject: Review of Draft NPDES Permit NCO022187 Motiva Enterprises LLC — Paw Creek Terminal Mecklenburg County NCDENR NORTH CAROLINA DEPARTMENT OF ENVIRONMENT AND NATURAL RESOURCES � 3 k•. .fir �a4� '� APR 0 4 2001 NCDE_NR Division of Environmental Health rldl,li V,Iater Supply Section P !C IL ville Regional Office Please indicate below your agency's position or viewpoint on the draft permit and return this form by May 2, 2001. If you have any questions on the draft permit, please contact me at the telephone number or e-mail address listed at the bottom of this page. RESPONSE: (Check one) Concur with the issuance of this permit provided the facility is operated and maintained properly, the stated effluent limits are met prior to discharge, and the discharge does not contravene the designated water quality standards. Concurs with issuance of the above permit, provided the following cKDENR U ll Ulu APR ❑ - WAUALITY C11 BRANCHOpposes the issuance of the above permit, based on reasons stated b Signe 1617 Mail Service Center, Raleigh, North Carolina 27699-1617 919 733-5083, extension 551 (tax) 919 733-0719 VISIT us ON THE INTERNET @ http://h2o.enr.state.nc.us/NPDES Natalie.Sierra@ ncmail.net February 27, 2001 ny Y NCDENR f�/]\\/r Division of Water Quality/NPDES Unit 1617 Mail Service Center Raleigh, North Carolina 27699-1617 RE: NPDES Permit Applications — Short Form C Renewal Applications North Carolina Motiva Enterprise Facilities A'0 To Whom It May Concern; On behalf of Equiva Services, LLC, Applied Earth Sciences, Inc (AES) has prepared the attached National Pollutant Discharge Elimination System (NPDES) renewal permits using the Short Form C templates. The renewal applications have. been prepared for the following four Motiva Enterprise facilities: 101 South Chimney -Rock Road Greensboro, NC 27409 6851 Freedom Drive Charlotte, NC 28214 2232 Ten -Ten. -Road , Apex, NC 27502-8115 410 Tom Sadler Road Charlotte, NC 28214 Should you have any questions regarding the attached permit renewal applications, please contact Ms. Anna Tillman of Equiva Services, LLC at (404) 321- 0695. Sincerely; APPLIED_F ARTH SCIENCES, INC. Eric G. Hetrick Project Geologist 814 Davidson Road e Concord, North Carolina 28025 • Tel: (704) 795-7075 • Fax: (704) 795-7076 M MW-32 W-31 MW 30 -19 MW-15 0 MW-20 MW-280 IV Retention Pond Remedii3tio-n MW-13 e 0 150 OMW-14 Shed 0 1 OMW-22 R -7 0 MW-21 St Drain Scale in Feet Storm MW-23 0 Drain :: — -16V Office/ ------- MW 1-6 DO MW-1 Mw i i (D W-5 Warehouse (8) wPump oomw i RW-2 0 Hous MW-17 O MW-240 Sum RW-3 Concrete MW-12 Premium @ (9 Unleaded 0 Unleaded RW-40 MW-189 mw-9 0 MW-11 0 MW-7 Empty (9 -9 9 Mw-6 (9 Unleaded MW-8 Plus Diesel MW-5 u Diesel r. 0 OFire LEGEND E Ra ck Tr uck 0 0 Building Containment MW-4 0 0 Air Sporge Well Location Dike 0 Shallow Monitor Well Location (0 MW-25 MW- , 20 0 Deep Monitor Well Location 0 MW-3 MW-27(9 0 sump 0 MW-26 8 Recovery Well Location K 0 Inactive Well Location S Storm Drain Line -*- -*- Fence ------------- Plantation Pipeline —it— Property Line NAME MOTIVA ENTERPRISE FIGURE E C 'APPLIED EARTH SCIENCES CAROLINAS, INC. Facility No. 20-506-5001 SITE MAP 069-00093-021 Made By: B.P. Date: 2-12-01 410 Tom Sadler Road Chocked By: E.H. File: 003-01 Charlotte, North Carolina MOTIVA ENTERPRISES LLG Stull, Texaco S. Saud Aramco Working Together CERTIFIED MAIL Z 324 454 836 RETURN RECEIPT REQUESTED September 7, 2000 Mr. David Goodrich, Supervisor NPDES Unit Division of Water Quality 1617 Mail Service Center - — ----- — Raleigh, NC 27699-1617 ii RE: NPDES Permit No. NCO022187 DEC i 9 Z�00 Request Modification of Flow Monitoring type Motiva Enterprises Charlotte North Terminal Mecklenburg County I DENR - WATER QUALITY POINT SOURCE BRANCH Dear Mr. Goodrich: This letter serves to request that the subject NPDES permit be reopened in order to modify the flow measurement requirements. The subject permit was reissued on December 23, 1999, combining the requirements of facility with that of the groundwater remediation system. Prior to the re -issuance of the permit, the facility was required to submit a total flow volume. The groundwater remediation system was required to have a flow totalizer. The major source of discharge from the facility is due to stormwater. Prior to discharge, the stormwater is collected in a surface impoundment of known volume. This provides the facility the ability to determine the true discharge volumes with a maximum deviation of less than 10 percent as required by 15 NCAC 02B .0505. The volume of wastewater generated by the groundwater remediation is insignificant compared to the volume of stormwater. The remediation system does have a flow totalizer and this was required to be reported under its own permit. When the two permits were combined, it appears that the remediation permit was used as the template and did not take into consideration the flow monitoring requirements of the facility's stormwater flow monitoring requirements. Since the facility retains the majority of the effluent in a surface impoundment of known size, the requirement of installing a flow meter to determine the volumes discharged is redundant and will not afford the environment any greater protection than is provided by the current system. 1717 — 61 11 Avenue, North Nashville, Tennessee 37209 Phone: (615) 350-7077 Fax: (615) 350-7087 Mr. Dave Goodrich September 7, 2000 Page 2 of 2 Therefore, Motiva Enterprises requests immediate relief from the flow measurement requirements pending the modification and re -issuance of the subject NPDES permit. If you have any questions, please call me at (615) 350-7077. Very truly yours, MOTIVA ENTERPRISES Jil J. Norman, Field Environmental Coordinator CC: Mr. Richard Bridgeman — NCDENR Mr. Rusty Rozzelle — MCDEP Larry Couch — Motiva Enterprises \JO J e _ CERTIFIED MAIL Z 324 454 837 RETURN RECEIPT REQUESTED September 7, 2000 Mr. Richard Bridgeman Division of Water Quality 919 North Main Street Mooresville, NC 28115 RE: Notice of Violation Motiva Enterprises LLC Charlotte North Terminal NPDES Permit No. NCO022187 Mecklenburg County Dear Mr. Bridgeman: MOTIVA ENTERPRISES LLC Shell, Texaco & Saudi Aremco Working Together 19 2000 I regret the tardiness of this letter. As I mentioned in our telephone conversation, I have been dealing with a serious illness within my family. This letter serves to address the flow measurement violation noted by Mr. John McCulloch of Mecklenburg County DEP during his June 26, 2000 inspection of the subject facility. Motiva Enterprises plans to submit a request to Mr. Dave Goodrich asking that the permit be reopened and modified to reflect the flow measurement requirements of the original facility NPDES before it was combined with the remediation system. The primary source of effluent generated at the facility is from stormwater. Prior to discharge, the stormwater is stored in a surface impoundment of a known volume. This provides the facility the ability to determine the true discharge volumes with the maximum deviation of less than 10 percent as required by 15 NCAC 02B .0505. Motiva Enterprises will request that Mr. Goodrich suspend the new flow measurement requirements and allow the facility to continue the flow measurement requirements under the old permit. If you have any questions, please call me at (615) 350-7077. Very truly yours, MOTIVA ENTERPRISES LLC Ja J �- Jil J. Norman, Field Environmental Specialist Cc: Rusty Rozzelle — MCDEP Dave Goodrich — Water Quality Division Larry Couch — Motiva Enterprises 1717 - 615f Avenue, North Nashville, Tennessee 37209 Phone: (615) 350-7077 Fax: (615) 350-7087 Whole Effluent Toxicity Testing Self -Monitoring Summary February 16, 2001 FACILITY REQUIREMENT YEAR JAN FEB MAR APR MAY JUN JUL AUG SEP OCT NOV DEC Morehead City WWTP PERM 24HR AC P/F LIM: 901%MYSJD 1997 -- Pass -- >100 Pass -- -- Pass --- --- Fall Fail NCO0266111001 Begin:5/1/1993 Frequency: Q + Feb May Aug Nov NonComp:SINGLE 1998 Fail Pass -- - Pass -- -- Fail Pass - Pass --- County: Carteret Region: WIRO Subbasim WOK03 1999 -- Pass - -- Pass -- -- Pass -- - Bt -- PF: 1.7 Special 2000 -- Pass -- - Pass -- -- Fail Pass -- Pass -- 7QIO: TIDAL IWC(%):NA Order: 2001 Morganton Perm chr lim: 9%; if pf 10.5 chr lim 121%; if pf 13 chr lim 15% 1997 Pass -- -- Fail Pass -- Pass -- -- Pass --- -- NCO026573/001 Begin:2/t/1995 Frequency: QP/F + Jan Apr Jul Oct NonComp:Single 1998 Pas. -- -- Pass -- -- Pass -- -- Fail,Pass -- -- County: Burke Region: ARO Subbasin: CTB31 1999 Pass - -- Pass -- -- Pass -- -- Pass -- -- PF: 8.0 Special 2000 Pass -- - Pass -- -- Pass -- -- Pass -- -- 7QIO: 126 IWC(%):8.96 Order: 2001 Motive Enterprises -Paw Creek Perm 24hr LC50 ac monit epis Ohd (gab) 1997 - -- - - >100 -- -- - -- - -- -- NCO022187/001 Begin:9/l/1996 Frequency: A NonComp: 1998 - -- --- --- >100 -- -- -- -- -- -- -- County: Mecklenburg Region: MRO Subbasin: CTB34 1999 - -- Pass Pass - - -- - -- --- -- -- PF: NA Special 2000 86.1 -- -- -- - -- -- -- - -- -- -- 7QI0:0.0 IWC(%):100 Order: 2001 Nit. Airy WWTP Perm chr lim: 42% V 1997 Pass - -- Fail Pass -- Pass -- -- Pass - -- NCO021121/001 Begin:2/l/2000 Frequency: Q P/F Jan Apr Jul Oct + NonComp:Single 1998 Fail Pass -- Pass -- -- Pass - -- Pass - -- County: Sorry Region: WSRO Subbmin: YAD03 1999 Pass --- -- Pass -- -- Pass -- -- Pass -- -- PF: 7.0 Special 2000 Pass -- -- Pass -- - Pass -- -- Pass --- -- 7Q10: 14.9 IWC(%):42.0 Order: 2001 Fail Mt. Gilead WWTP Perm chr lim: 3.2% 1997 - - Pass -- -- Fail Pass -- Pass -- -- Pass NCO021105/001 Begire3/1/2000 Frequency:Q Mar Jun Sep Dec + NonComp:Single 1998 - - Fail Late Fail- Late Pass -- Pass,Pass --- -- Pass County: Montgomery Region: FRO Subbasin: YAD10 1999 - -- Pass -- - - -- -- Late Pass -- Pass PF: 0.85 Special 2000 -- - Pass - -- NR Pass -- H Pass -- Passsig 7Qt0: 40 IWC(%):3.2 Order 2001 Mt. Holly W WTP Penn cl r lim: 6% 1997 - Pass -- -- Pass - -- Pass --- --- Pass --- NCO021156/001 Begin:9/I/1996 Frequency: Q P/F + Feb May Aug Nov NonComp: Single 1998 -- Pass -- -- Pass -- -- Late Pass --- Pass -- County: Gaston Region: MRO Subbasin: CTB33 1999 -- Pass -- -- Pass -- -- Pass --- -- Pass -- PF: 4.0 Special 2000 _- Pass - -- Pass - -- Pass -- -- Pass -- 7Q10:95.0 IWC(%):6.0 Order: 2001 Mt. Olive Pickle P-2 perm car monit (100, 75, 50,25, 12.5, 6.25) Y 1997 8.a4 --- -- 8.84 -- -- 8.84 -- -- 35.36 -- - NC0001074/001 Begin:2/1/1996 Frequency: Q Jan Apr Jul Oct NonComp: 1998 17,68 - -- 8.83 - - 17.67 -- -- 8,84 -- --- County: Wayne Region: WARD Subbasin: CPF21 1999 35.4 -- -- 17.68 - -- 8.84 -- -- 35.4 -- -- PF: 0.40 Special 2000 8.84 -- - 35.4 - -- NR/Late 3643 -- 35.4 - -- 7QI0:0.0 IWC(%):100 Order: 2001 Mt. Olive WWTP Perm chr lim: 90% 1997 -- -- Pa.$ - -- Pass --- -- Late Fail Pass Pass NCO020575/001 Begin:9/i/1996 Frequency: QP/F + Mar Jun Sep Dec NonComp: Single 1998 -- -- Pass - -- Pass --- -- Fail Fail,Fail >100 Pass County: Wayne Region: WARO Subbasin: CPF21 1999 -- - Late Pass -- Pass - - Pass -- -- Late PF: 1.0 Special 2000 pass -- Pass -- -- Pass - - Pass - - Pass 7Q10:0.0 IWC(%):100 Order: 2001 Mt. Pisgah Lodge/Recreation Area Perm chr lim: 25% 1997 - H -- - Pass(s) -- -- Fail Fail Pass(s) H --- NCO072729/001 Begin: 12/1/1996 Frequency: Q P/F + Feb May Aug Nov NonComp:Single 1998 -- H -- Pass Fail Pass(s) -- Pass(s) -- --- Pass -- County: Haywood Region: ARO Subbasin: FRB05 1999 -- NR/H H -- Late Pass -- Pass -- -- Fail -- PF: 0.032 Special 2000 H H -- Pass,>75 61.2 -- -- NR/Fail 61.2 61.2 Pass -- 7Q10:0.15 IWC(%):25 Order: 2001 Murphy W WTP Penn chr lim: 1.5% 1997 - - Pass -- -- Fail Fail Pass Pass -- -- Pass NCDO20940/001 Begin:3/l/1998 Frequency: Q P/F + Mar Jun Sep Dec + NonComp:Single 1998 - - Pass - -- Pass -- -- Pass -- -- Pass County: Cherokee Region: ARO Subbasin: HIW02 1999 -- --- Pass -- -- Pass -- -- Pass --- -- Pass PF: 0.925 SW6.1 2000 _. - Pass - -- Pass --- -- Pass -- -- Pass 7QIO: %.9 IWC(%):1.5 Order: 2001 N. Buncombe High School Penn chr lim: 90% 1997 Pass -- -- Fail NR NR Pass - - Pass -- -- NCO061182/001 Begin: l0/1/1995 Frequency: Q P/F + Jan Apr Jul Oct NonComp:Single 1998 Late Late Late Late Fail Pass Pass - - Pass - -- County: Buncombe Region: ARO Subbasin: FRBO2 1999 NR/Pass -- -- Pass -- -- Fail Late Fail Fail >100 92.5 PF: 0.025 Special 2000 Fail 92.5 >100 Pass -- --- Fall >100 >100 Pass -- -- 7Q10:0.0 IWC(%):100 Order: 2001 4 Pre 1997 Data Available LEGEND: PERM = Permit Requirement LET = Administrative Letter - Target Frequency = Monitoring frequency: Q- Quarterly; M- Monthly; BM- Bimonthly; SA- Semiannually; A- Annually; OWD- Only when discharging; D- Discontinued monitoring requirement Begin = First month required 7Q I O = Receiving stream low Bow criterion (cfs) + - quarterly monitoring increases to monthly upon failure or NR Months that testing must occur - ex. Jan, Apr, Jul, Oct NonComp = Current Compliance Requirement PF = Permitted Bow (MGD) IWC%= Instream waste concentration P/F = Pass/Fail test AC = Acute CHR = Chronic Data Notation: f - Fathead Minnow; • - Ceriodaphnia sp.; my - Mysid shrimp; ChV - Chronic value; P - Mortality of stated percentage at highest concentration; at - Performed by DWQ Aquatic Tox Unit; bt - Bad test Reporting Notation: -•- = Data not required; NR - Not reported Facility Activity Status: I - Inactive, N - Newly Issued(To construct); H - Active but not discharging; 1-More data available for month in question; • = ORC signature needed 32 REASONABLE POTENTIAL ANALYSIS Prepared by: Natalie Sierra, 3/7/01 Facility Name = NPDES # _ Qw (MGD) _ Qw (cfs) _ 7Q10s (cfs)= /WC (%) _ Parameter Phenols Max. Pred Cw Allowable Cw Ethyl benzene Max. Pred Cw Allowable Cw MTBE Max. Pred Cw Allowable Cw Manganese Max. Pred Cw (mg/L) Allowable Cw (mg/L) Iron (A.L.) Max. Pred Cw (mg/L) Allowable Cw (mg/L) Lead (A. L. ) Max. Pred Cw (mg/L) Allowable Cw (mg/L) Toluene Max. Pred Cw Allowable Cw Motiva Enterprises NC0022187 0.257 0.397630 0 100.00 FINAL RESULTS, ug/I 122.8 200.6 18.1 524.0 177.6 11.6 4.3 0.2 10.8 1.0 10.8 1.0 8.2 11.0 Frequency of Detection OSamples # Detects 5.5 19 M p7 9 53 53 1 1 0 5 0 S 1 ,arameter = Standard = Dataset= Modified Data Nondetects RESULTS 0.5 <1.0 Std Dev. 8.177 0.5 <1.0 Mean 4.613 0.5 <1.0 C.V. 1.773 0.5 <1.0 Sample# 53.000 0.5 <1.0 0.5 <1.0 Mult Factor = 3.070 5 <10.0 Max. Value 40.000 pg/I 0.5 <1.0 Max. Pred Cw 122.800 pg/I 0.5 <1.0 Allowable Cw 200.600 pg/I 0.5 <1.0 0.5 <1.0 0.5 <1.0 0.5 <1.0 0.5 <1.0 0.5 <1.0 0.5 <1.0 0.5 <1.0 0.5 <1.0 0.5 <1.0 0.5 <1.0 0.5 <1.0 0.5 <1.0 0.5 <1.0 0.5 <1.0 0.5 <1.0 0.5 <1.0 0.5 <1.0 0.5 <1.0 0.5 <1.0 0.5 <1.0 0.5 <1.0 2.5 <5.0 0.5 <1.0 25 <50 25 <50 25 <50 25 <50 5 <10 5 <10 5 <10 5 <10 5.5 <11 5 <10 5.5 <11 5 <10 40 5 <10 5 <10 5 <10 10 <20 5.5 <11 5 <10 5 <10 sample# nondetects detects 53 52 1 Parameter= jEthylbenzene Standard = I 524 pg/I Dataset= DMR99 Modified Data Nondetects RESULTS 2.5 <5 Std Dev. 1.437 2.5 <5 Mean 1.737 2.5 <5 C.V. 0.828 2.5 <5 Sample# 19.000 6 2.5 <5 Mult Factor = 3.010 2.5 <5 Max. Value 6.000 pg/I 2.5 <5 Max. Pred Cw 18.060 pg/I 2.5 <5 Allowable Cw 524.000 pg/I 2.5 <5 0.5 <1 0.5 <1 0.5 <1 0.5 <1 0.5 <1 0.5 <1 0.5 <1 0.5 <1 0.5 <1 nondetects detects 19 18 1 Parameter = MTBE Standard = 11.6 ug/L ModifiedData Nondetects RESULTS 46 Std Dev. 12.409 7.6 Mean 17.078 18 C.V. 0.727 5.5 Sample# 9.000 22 11 Mult Factor = F 3.860 21 Max. Value 46.000 pg/I 7.6 Max. Pred Cw 177.560 pg/I 15 Allowable Cw 11.600 pg/I sample# nondetects detects 9 0 9 Parameter = IManganese Standard= 1 0.' ModifiedData Nondetects 0.05 <0.10 0.05 <0.10 0.14 0.62 0.2 0.17' 0.14 0.05 <0.10 0.05 <0.10 sample# nondetects 9 4 mg/L RESULTS Std Dev. 0.181 Mean 0.1.63 C.V. 1.109 Sample# 9.000 Mult Factor = 6.980 Max. Value 0.620 mg/L Max. Pred Cw 4.328 mg/L Allowable Cw 0.200 mg/L detects 61 Parameter= Iron (A.L.) Standard = I mg/L ModifiedData Nondetects RESULTS 0.78 Std Dev. 0.766 0.51 Mean 1.128 0.68 C.V. 0.679 1.1 Sample# 9.000 3 1.2 Mult Factor 1.4 Max. Value 3.000 pg/I 0.51 Max. Pred Cw 10:800 pg/I 0.97 Allowable Cw 1.000 pg/I ,aramerer = Standard = ModifiedData Nondetects 5 <10.0 5 <10.0 25, <50.0 25 <50.0 25 <50.0 12.5 <25.0 25 <50.0 5 <10.0 0.01 <0.02 0.01 <0.02 0.01 <0.02 5 <10.0 5 <10.0 5 <10.0 5 <10.0 5 <10.0 5 <10.0 5 <10.0 5 <10.0 5 <10.0 5 <10.0 5 <10.0 5 <10.0 5 <10.0 5 <10.0 5 <10.0 5 <10.0 5 <10.0 5 <10.0 5 <10.0 5 <10.0 2.5 <5.0 0.5 <1.0 0.5 <1 0.5 <1.0 0.5 <1.0 0.5 <1.0 0.5 <1.0 0.5 <1.0 0.5 <1.0 0.5 <1.0 0.5 <1.0 0.5 <1.0 0.5 <1.0 6 25 <50 2.5 <5 2.5 <5 3 6 5 1 <2 1 <2 mg/L RESULTS Std Dev. 6.823 Mean 5.435 C.V. 1.255 Sample# 53.000 Mult Factor = 2.455 Max. Value 25.000 pg/I Max. Pred Cw 61.375 pg/I Allowable Cw 0.025 pg/I sample# nondetects detects sample# nondetects detects 9 0 9 53 49 4 Parameter = IToluene Standard = 1 11 ug/L ModifiedData Nondetects RESULTS 0.5 <1.0 Std Dev. 1.841 2.5 <5.0 Mean 3.400 5 <10.0 C.V. 0.541 5 <10.0 Sample# 53.000 5 <10.0 5 <10.0 5 <10.0 5 <10.0 5 <10.0 5 <10.0 0.5 <1.0 5 <10.0 5 <10.0 5 <10.0 5 <10.0 5 <10.0 5 <10.0 5 <10.0 5 <10.0 5 <10.0 5 <10.0 5 <10.0 5 <10.0 5 <10.0 5 <10.0 5 <10.0 5 <10.0 5 <10.0 0.5 <1.0 5 <10.0 5 <10.0 5 <10.0 2.5 <5.0 2.5 <5.0 2.5 <5.0 2.5 <5.0 2.5 <5.0 2.5 <5.0 2.5 <5.0 2.5 <5.0 2.5 <5.0 2.5 <5.0 2.5 <5.0 2.5 <5.0 2.2 0.5 <1 0.5 <1 0.5 <1 0.5 <1 0.5 <1 0.5 <1 0.5 <1 0.5 <1 Mult Factor = 1.641 Max. Value 5.000 pg/I Max. Pred Cw 8.205 pg/I Allowable Cw 11.000 pg/I sample# nondetects detects 53 52 NC�ZZ� NOT? vp, 5c N►2-G E Is Cor-j p� , v��j- �GW SyS )Is-c4" e-s `.. 5 p0, UCo od(&us/ ct v- FkZOr i -FLz - 0 q lq lC)o �S how --7kcS t-tA S ���-Ir`► -p o � � � � rl �� CLA L�4►2(�� �c�2�ty o,� --t>rscHAe-,(, j iltnN -DCT- moo}--( Vo�� 217 31oH -Pao'-' tl- b Z ai-"/" aludt S �t nM,u4Z mow_ 6 2Ll411� a�lC �x I �oYvY C H -4L 7ox! rv6. �s 6i �J 2l z2I99� Ob G2tll�a5 n�,, V�V+t-11A ow,,� -IAOAW� Vy w lggyl 31-M) Av c- *N - o, c- ccg �a2 - a�'�'i ✓ � i� IYl 1��, 2'��i 1J�'�,7� kl�v/&j -I.- Jy-&- 71i2- Sa rrw--�i d 2� 6iy C zo � tign,dtj" 57 sYF -Try, � r Z laeccs ; ohi >d� -=-,> /aa�'4' � —1�" K 8 OTTO" '�-O is WLtxv Aw$ol ` NCO o L-Z-18 _1 g12 z o�-YZS1-hg l� y�r9 C s L- 6y r�ev� ala:�- � tdiuy*�u ,?Urz/yd�-nrmiuf�zr� i. Le A7 q 3 Ib x .L x � o .zooL /L, 0UAt,�be�5; PVWk-�W PV*t)� (D 4 "e bjyvL� Star Enterprises NC0022187 Permit issued Aug-96 Date Flow TSR Oil and Grease Phenols Benzene Lead Toluene Xylene Ethylbenzene MTBE -(MGD) (mg/L) (mg/L) (ug/L) (ug/L) (ug/L) (ug/L) (ug/L) (ug/L) (ug/L) 8/1/96 0.019 8 <1.0 <1.0 <1.0 <10.0 <1.0 <1.0 8/6/96 0.046 14 <1.0 <1.0 <5.0 <10.0 <5.0 <5.0 9/4/96 0.069 5 <0.5 <1.0 <10.0 <50.0 <10.0 <10.0 10/7/96 0.035 4 <0.5 <1.0 <10.0 <50.0 <10.0 11/5/96 0.079 4 <0.50 <1.0 <10.0 <50.0 <10.0 12/5/96 0.079 3 <0.5 <1.0 <1.0 <25.0 <10.0 1/8/97 0.038 6 <0.50 <10.0 <10.0 <50.0 <10.0 2/7/97 0.044 4 <0.5 <1.0 <10.0 <10.0 <10.0 3/7/97 0.071 4 <0.5 <1.0 <1.0 <0.02 <10.0 3/18/97 0.064 3 <0.5 <1.0 <1.0 <0.02 <10.0 <10.0 4/7/97 0.068 3 <0.5 <1.0 <1.0 <0.02 <1.0 5/15/97 0.036 3 <0.5 <1.0 <1.0 <10.0 <10.0 6/23/97 0.017 3 <0.5 <1.0 <1.0 <10.0 <10.0 <10.0 7/2/97 0.044 <0.001 <0.5 <1.0 <1.0 <10.0 <10.0 <10.0 8/4/97 0.021 4 <0.5 <1.0 <1.0 <10.0 <10.0 <10.0 9/15/97 0.048 4 <0.5 <1.0 <1.0 <10.0 <10.0 <10.0 10/15/97 0.022 4 <1.0 <1.0 <1.0 <10.0 <10.0 11/5/97 0.065 3 <1.0 <1.0 <1.0 <10.0 <10.0 12/11/97 0.084 4 <1.0 <1.0 <1.0 <10.0 <10.0 <10.0 1/5/98 0.022 3 <1.0 <1.0 <1.0 <10.0 <10.0 <10.0 2/10/98 0.02 2 <1.0 <1.0 <1.0 <10.0 <10.0 3/13/98 0.036 2 <1.0 <1.0 <10.0 <10.0 <10.0 4/7/98 0.084 3 <1.0 <1.0 <1.0 <10.0 <10.0 4/15/98 0.024 1.8 <1.0 <1.0 <1.0 <10.0 <10.0 5/4/98 0.053 4 <1.0 <1.0 <1.0 <10.0 <10.0 6/8/98 0.047 2 <1.0 <1.0 <1.0 <10.0 <10.0 7/13/98 0.031 3.6 <1.0 <1.0 <1.0 <10.0 <10.0 <10.0 8/7/98 0.051 4.2 <1.0 <1.0 <1.0 <10.0 <10.0 9/4/98 0.257 4.2 <1.0 <1.0 <1.0 <10.0 <1.0 10/6/98 0.041 2 <1.0 <1.0 <1.0 <10.0 <10.0 11/10/98 0.065 2 <1.0 <1.0 <1.0 <10.0 <10.0 12/14/98 0.089 <10 <5.0 <5.0 <1.0 <5.0 <10.0 1/18/99 0.103 5 <5.0 <1.0 <1.0 <1.0 <5.0 <3 2/17/99 0.029 <10 <5.0 <50 <1.0 <1 <5.0 3/12/99 0.058 <10 <5 <50 <1.0 <1.0 <5.0 4/7/99 0.065 <10 <5 <50 <1.0 <1.0 <5.0 5/19/99 0.049 <10 <6 <50 <1.0 <1.0 <5.0 6/11/99 0.036 11 <5 <10 <1.0 <1.0 <5.0 7/13/99 0.08 5 <5 <10 <1.0 <1.0 <5.0 <3 9/14/99 0.055 4.5 <5 <10 <1.0 <1.0 <5.0 10/12/99 0.055 8 <5 <10 <1.0 <1.0 <5.0 11/23/99 0.036 <10.0 <5 <11 <1.0 <1.0 <5.0 12/22/99 0.062 6 <5 <10 <1.0 <1.0 <5.0 1/10/00 0.11 11 <5 <11 <1.0 <1.0 <5.0 <3 2/18/00 0.091 6 <6 <10 <1.0 6 2.2 <3 <1 46 3/14/00 0.058 6 <5 40 <1.0 <50 <1 <3 <1 7.6 4/11/00 0.108 8 <6 <10 <1.0 <5 <1 <3 <1 18 5/8/00 0.062 11 <5 <10 <1.0 <5 <1 <3 <1 5.5 7/11/00 0.088 22 <5 <10 <1.0 3 <1 <3 <1 22 8/1/00 0.065 33 <5 <20 <1.0 6 <1 <3 <1 11 9/19/00 0.05 28 <5 <11 <1.0 5 <1 <3 <1 21 11/20/00 0.104 15 <5 <10 <1.0 <2 <1 <3 <1 7.6 1/25/01 0.101 14 <5.0 <10 <1.0 <2 <1 <3 <1 15 average 0.061019 6.745652 max 0.257 33 1,2-DCA Fluorene Naphthalene Phenanthrene Manganese Iron Date (ug/L) (ug/L) (ug/L) (ug/L) (mg/L) (mg/L) - 8/1 /96 8/6/96 9/4/96 1017/96 1'1/5/96 12/5/96 1 /8/97 2/7/97 3/7/97 3/18/97 4/7/97 5/15/97 6/23/97 7/2/97 8/4/97 9/15/97 10/15/97 11 /5/97 12/11/97 1 /5/98 2/10/98 3/13/98 4/7/98 4/15/98 5/4/98 6/8/98 7/13/98 8/7/98 9/4/98 1016198 11/10/98 12/14/98 1 /18/99 2/17/99 3/12/99 417/99 5/19/99 6/11 /99 7/13/99 9/14/99 10/12/99 11 /23/99 12/22/99 1 /10/00 <1 <10 <10 <10 <0.10 0.78 2/18/00 <1 <10 <10 <10 <0.10 0.51 3/14/00 <1 <10 <10 <10 0.14 0.68 4/11/00 <1 <10 <10 <10 0.62 1.1 5/8/00 <1 <10 <10 <10 0.2 3 7/11/00 <1 <10 <10 <10 0.17 1.2 8/1/00 <1 <10 <10 <10 0.14 1.4 9/19/00 <1 <10 <10 <10 <0.10 0.51 11/20/00 <1 <10 <10 <10 <0.10 0.97 1/25/01 State of North Carolina Department of Environment and Natural Resources Division of Water Quality James B. Hunt, Jr., Governor Bill Holman, Secretary Kerr T. Stevens, Director Mr. Larry Couch Motiva Enterprises LLC 410 Tom Sadler Rd. Paw Creek, North Carolina 28130 Dear Mr. Couch: M?W'A IT 0 0 A&4 IV 2 1111111111L� - - NCDENR NORTH CAROLINA DEPARTMENT OF - ENVIRONMENT AND NATURAL RESOURCES December 23, 1999 Subject: NPDES Permit Modification Permit NumberNC0022187/NCG510177 Paw Creek Terminal Mecklenburg County The Division issued NPDES permit NCO022187 on August 2, 1996 and NPDES Permit NCG510177 on April 25, 1997 to the Star Enterprises (now Motiva Enterprises LLC). The Division has reviewed your request for permit modification at the subject facility. Specifically, you requested the combining of the NPDES individual permit (NC0022187) and the NPDES general permit (NCG510177), resulting in the elimination of the general permit. In accordance with your permit modification request, the Division is forwarding herewith a modification to the subject permit. In accordance with this approved permit modification to the NPDES individual permit, the NPDES general permit NCG510177 is hereby rescinded. Enclosed please find the modified effluent limitations page. This page should be inserted into your permit and the old one discarded. This permit modification is conditional upon the combining of the flow streams as indicated in .the August 24, 1999 proposal letter. 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. Please take notice that this permit is not transferable. Part II, E.4. addresses the requirements to be followed in case of change in ownership or control of this discharge. This permit does not affect the legal requirement to obtain other permits which may be required by the Division of Water Quality or permits required by the Division of Land Resources, Coastal Area Management Act or any other Federal or Local government permit that may be required. 1 61 7 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 @ http://h2o.enr.state.nc.us/NPDES Mr. Larry Couch Motiva Enterprises NC0022187/NCG510177 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 written 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, Post Office Drawer 27447, Raleigh, North Carolina 27611-7447. Unless such demand is made, this decision shall be final and binding. If you have any questions concerning this permit, please contact Mr. Michael Myers at telephone number (919) 733-5083, extension 508. Sincerely rr T. Stevens cc: Central Files NPDES Permit File Stormwater/General Permits Unit Mooresville Regional Office Point Source Compliance/Enforcement Aquatic Toxicology Unit Edward Henke — Equiva Service LLC 4127 Winters Chapel Road Doraville, GA 30360 Permit Number: NCO022187 A. (1.) EFFLUENT LIMITATIONS AND MONITORING REQUIREMENTS — Final During the period beginning on the effective date of the permit and lasting until expiration, the Permittee is authorized to discharge stormwater and treated groundwater from outfall 001. Such discharges shall be limited and monitored by the Permittee as specified below: FFCUENT $" �CHAFI�GTERiI'tGS ors e LiM[TS f r j �,�$ g MQNITORINt� E0 i R'E1VlENf" IT q ' l ocatton , Flow Continuous Recorder Effluent Total Suspended Residue 30.0 m /1 Monthly Grab Effluent Oil and Grease Monthly Grab Effluent Phenol Monthly Grab Effluent Benzene 1.19 u Monthly Grab Effluent Toluene 11.0 ug/1 Monthly Grab Effluent Ethylbenzene Monthly Grab Effluent Xylene Monthly Grab Effluent Methyl Tert-Butyl Ether Monthly Grab Effluent Lead Monthly Grab Effluent 1,2 Dichloroethane Monthly Grab Effluent Fluorene Monthly Grab Effluent Naphthalene Monthly Grab Effluent Phenanthrene Monthly Grab Effluent Iron Monthly Grab Effluent Manganese Monthly Grab Effluent EPA Method 624/625 Semi-annually Grab Effluent Acute toxicity Episodic Grab Effluent Footnotes: 1. If flow is not continuous, flow may be monitored weekly in one of three ways: 1.)Continuous flow measurement, 2.) Base flow on pump logs 3.) Estimate flow measurement using a totalizing flow meter at the point of discharge, recording flow at the start of discharge, at the end of the first 20-minute interval and immediately after discharge has ceased. 2. Where possible, the grab sample for oil and grease should be skimmed from the surface of a quiescent (calm water) zone. 3. EPA Method 625 includes five (5) chlorophenols. If one or more chlorophenol(s) is detected at concentrations greater than or equal to 50 µg/l, the permittee will be required to analyze for the eight chlorophenols (listed below) in addition to EPA Method 625. This additional required monitoring will begin with the permittee's next scheduled monitoring event, occur.on a semi-annual basis, and will last for the duration of the permit. Eight chlorophenols include the following: 3-chlorophenol, 4-chlorophenol, 2,3- dichlorophenol, 2,5-dichlorophenol, 2,6-dichlorophenol, 3,4-dichlorophenol, 2,3,4,6-tetrachlorophenol, and 3-methyl-6-chlorophenol. 4. Acute Toxicity (Fathead Minnow, 24-hour) Monitoring, Annual, 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 (or pipe) contents following hydrostatic testing unless benzene concentration is less than 1.19 ug/l and toluene concentration is less than 11 ug/1. ;y. Permit NCO022187 Part III. Condition 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, DWQ Form AT-1 (original) is to be sent to the following address: Attention: North Carolina Division of Water Quality Environmental Sciences Branch 1621 Mail Service Center Raleigh, North Carolina 27699-1621 Completed Aquatic Toxicity Test Forms shall be filed with the Environmental Sciences Branch no later than 30 days after the end of the reporting period for which the report is made. 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 Water Quality 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 and will require immediate follow-up testing to be completed no later than the last day of the month following the month of the initial monitoring. AAM Fathead 24 Version 9196 Motiva Biterprises 'A Subject: Motiva Enterprises Date: Mon, 04 Oct 1999 13:25:04 -0400 From: Richard Bridgeman <Richard.Bridgeman@ncmail.net> Organization: NC DENR - Mooresville Regional Office To: Charles Weaver <Charles.Weaver@ncmail.net> Follow-up: Mike Parker/Rex Gleason have no problem with the Motiva request. Rexsays to route a/, requests/inquiries through him. Sorry. Richard Bridgeman - Richard.Bridgeman@ncmail.net Environmental Chemist II North Carolina Dept. of Environment & Natural Resources Div. of Water Quality 919 N. Main St. Mooresville, NC 28115 Ph:704/663-1699 Fax:704/663-6040 1 of 1 10/4/99 1:27 PM 1 4 State of North Carolina Department of Environment and Natural Resources Division of Water Quality James B. Hunt, Jr., Governor Wayne McDevitt, Secretary A. Preston Howard, Jr., P.E., Director September 22, 1998 Ms. Jil J. Norman Star Enterprise 1717 61st Avenue North Nashville, Tennessee 37209 Subject: NPDES Permits - Ownership Change Permit NC0022187 Charlotte Sales Terminal Mecklenburg County Dear Ms. Norman: NCDENR NORTH CAROLINA DEPARTMENT OF ENVIRONMENT AND NATURAL RESOURCES Permit NC0022217 Raleigh Sales Terminal Wake County The Division received your notification that the facilities covered by the subject permits are being transferred to a new owner. Upon completion of the ownership changes, complete and return the enclosed Permit Name / Ownership Change forms with a fee of $100.00 for each facility ($200.00 total). The Division will transfer the subject permits when the necessary fees and documentation have been received. All terms and conditions in the existing permits will remain in effect until the transfer of ownership is complete, or until other action is taken by the Division. Thanks for notifying us of this impending change in advance. If you have any additional questions during this process, please contact me at the telephone number or address listed below. Sincerely, Charles H. Weaver, Jr. NPDES Unit cc: Central Files Raleigh Regional Office, Water Quality Section Mooresville Regional Office, Water Quality Section NPDES File P.O. Box 29535, Raleigh, North Carolina 27626-0535 919 733-5083, extension 511 (fax) 919 733-0719 An Equal Opportunity Affirmative Action Employer Charles_Weaver@h2o.enr.state.nc.us CERTIFIED MAIL Z 065 292 808 RETURN RECIEPT REQUESTED August 27, 1998 1998 U of W4TR ..� . p'RIECl'ph.S prlGET y Mr. A. Preston Howard, Jr., P.E. Director North Carolina Department of Environment and Natural Resources Division of Water Quality P. O. Box 29535 Raleigh, NC 27626 RE: NPDES NCO022187 Transfer of Ownership Star Enterprise Charlotte Sales Terminal 410 Tom Sadler Rd. Paw Creek, NC 28130 Mecklenburg County Dear Mr. Howard, Jr., P.E.: 1717 — 61' Avenue, North Nashville, Tennessee 37209 (615) 350-8088 FAX (615) 350-7087 This letter is to notify you that the above referenced Star Enterprise facility is in the process of being transferred to a new owner, Motiva Enterprises LLC. This change in ownership and operational control is the result of the formation of a new joint venture between Shell Oil Company and the parents of Star Enterprise. Effective October 1, 1998, ownership and operational control of this facility and the subject permit will transfer from Star Enterprise to Motiva Enterprise LLC. Effective that date, Motiva Enterprises LLC shall assume responsibility and liability under the permit in question. The operations of the facility, the production levels, products produced, and rates of discharge will not be affected by the change in ownership. The name and address of the new owner of the facility is: Motiva Enterprises LLC 410 Tom Sadler Rd. Paw Creek, NC 28130 Mr. Larry Couch has been assigned as the terminal manager for the facility under the new ownership. If you have any further questions regarding this matter, please contact me at (615) 350-8088. Very truly yours, STAR ENTERPRISE JLP J 00'1 Jil J. Norman, Sr. Field Environmental Specialist Cc: LMC �tP _ 4 19y� UHLITY Vvr1 � ►_� SECTION .• StarEnterprise Ao%k Ut CERTIFIED MAIL Z 065 292 808 RETURN RECIEPT REQUESTED August 27, 1998 .� TZPARZ�!' s 1998 / l DIV, pF D'REC OR S OFUA /ry FACE Mr. A. Preston Howard, Jr., P.E. Director North Carolina Department of Environment and Natural Resources Division of Water Quality P. O. Box 29535 Raleigh, NC 27626 RE: NPDES NCO022187 Transfer of Ownership Star Enterprise Charlotte Sales Terminal 410 Tom Sadler Rd. Paw Creek, NC 28130 Mecklenburg County Dear Mr. Howard, Jr., P.E.: 1717 — 61" Avenue, North Nashville, Tennessee 37209 (615)350-8088 FAX (615) 350-7087 This letter is to notify you that the above referenced Star Enterprise facility is in the process of being transferred to a new owner, Motiva Enterprises LLC. This change in ownership and operational control is the result of the formation of a new joint venture between Shell Oil Company and the parents of Star Enterprise. Effective October 1, 1998, ownership and operational control of this facility and the subject permit will transfer from Star Enterprise to Motiva Enterprise LLC. Effective that date, Motiva Enterprises LLC shall assume responsibility and liability under the permit in question. The operations of the facility, the production levels, products produced, and rates of discharge will not be affected by the change in ownership. The name and address of the new owner of the facility is: Motiva Enterprises LLC 410 Tom Sadler Rd. Paw Creek, NC 28130 Mr. Larry Couch has been assigned as the terminal manager for the facility under the new ownership. If you have any further questions regarding this matter, please contact me at (615) 350-8088. Very truly yours, STAR ENTERPRISE JLP \ J Poc)v tl�� Jil J. Norman, Sr. Field Environmental Specialist Cc: LMC stP UHLITY Wvr, S CTION 1 StarE�tervrrse A190 WI# August 24, 1998 Dear Sir or Madam: 12700 Northborough Drive Houston TX 77067-2508 281 8747000 This letter serves to notify you that Star Enterprise (Star) is in process of being transferred to a new owner, Motiva Enterprises LLC. This change in ownership and operational control is the result of the formation of a new joint venture between Shell Oil Company and the parents of Star. Star Enterprise and Motiva Enterprises LLC hereby provide notice that effective October 1, 1998, ownership and operational control of the facility and the permit referenced in the attached document(s) will transfer from Star Enterprise to Motiva Enterprises LLC. Effective October 1, 1998 Motiva Enterprises LLC shall assume responsibility and liability under the referenced permit. The operations of the facility and the production levels, products produced, rates of discharge, and wastewater characteristics will not be affected by the change in ownership. Sincerely, M. L. Omer Assistant Secretary Saudi Refining, Inc. R. J. Grimmer Vice President - Commercial Marketing & Distribution Motiva Enterprises LLC J State of North Carolina Department of Environment and Natural Resources Division of Water Quality James B. Hunt, Jr., Governor Wayne McDevitt, Secretary A. Preston Howard, Jr., P.E., Director February 22, 1999 Mr. Darvin E. Mayo Star Enterprise Coordinator Environmental Marketing 333 Research Court Norcross, Georgia 30092 Dear Mr. Mayo: r NCDENR NORTH CAROLINA DEPARTMENT OF ENVIRONMENT AND NATURAL RESOURCES Subject: Letter to Require Effluent Turbidity Monitoring Permit No. -NC0022187 Star Enterprise - Paw Creek Mecklenburg County As you are aware, the turbidity monitoring. requirement was eliminated from your permit upon renewal in August 1996. Although turbidity monitoring was eliminated, total suspended solids (TSS) monitoring with a limit remains in the permit. It was the Division's contention that should monitoring data indicate TSS problems, the state has the option of enforcing the instream standard for turbidity. However, the EPA is still concerned with the removal of the turbidity monitoring requirement from several oil terminal discharge permits. The following paragraphs address that concern. During the research phase required for permit development,,it was noted that the 14 permits in the Paw Creek area had vastly different requirements for solids measurements. Permits contained any combination of total suspended solids (TSS), turbidity, and settleable solids monitoring and/or limits. In an effort to provide consistency, TSS, turbidity, and . settleable solids results from six oil terminals in the Paw Creek area were examined from July 1994 through September 1995. Results showed that TSS and turbidity exhibited similar trends. Both pollutants appeared to increase and decrease at the same time. In addition, for the period examined, there were no turbidity violations, although there were a few TSS violations. These data resulted in the Division questioning whether monitoring was necessary for both solids parameters. Was there an added benefit to requiring turbidity monitoring in addition to TSS monitoring? The Division concluded that turbidity was correlated with TSS results, and thus, only TSS monitoring with a limit was required. In --addition, North Carolina has a water quality standard for turbidity. Therefore, although turbidity monitoring is not required in the discharge permits,, the State still has the authority to enforce the instream turbidity standard. P.O. Box 29535, Raleigh, North Carolina 27626-0535 Telephone 919-733-5083 FAX 91.9-733-9919 An Equal Opportunity Affirmative Action Employer 50% recycled/ 10% post -consumer paper Mr. Mayo February 22, 1999 Page 2 Based on concerns regarding anti -backsliding, the EPA requested the Division re- examine the basis for the elimination of turbidity monitoring for 12 of the 14 Paw Creek oil terminals that were required to monitor for turbidity prior to the most recent permit renewal. This second examination of the data showed that there were turbidity standard violations since the last analysis at several of the oil terminals. The Division will investigate the causes of these violations to determine what steps may be necessary to control solids levels at these sites. Therefore, the Division acknowledges that its second evaluation resulted in a different outcome from the initial investigation and agrees that turbidity monitoring should be added to the discharge permits for several of the oil terminals. This letter serves as the official notice that quarterly turbidity monitoring will be required at the facility effective March 1, 1999. If monitoring data show a reasonable potential to violate water quality standards, then limits will be imposed upon renewal. If you have any questions concerning this change, please contact Bethany Bolt at (919) 733-5083, extension 551. Sincerely, /�rw� '4� t-11, Preston Howard, Jr., P.E. cc: Central Files Mooresville Regional Office, Water Quality Section NPDES Unit Point Source Compliance Enforcement Unit