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HomeMy WebLinkAboutNC0074241_Staff Report_19901008Te.�Lln;t.S2 S�PP62T cc: Permits and Engineering Guilford County Emergency Management 1 7IN WSRO-WQ WSRO-GW Central Files Date October B, 19 NPDES STAFF REPORT AND RECOMMENDATIONS County Guilford NPDES Permit No. NCO074241 PART I - GENERAL INFORMATION (Existing Facilities - Change) 1. Facility and Address: G.N.C. Energy Corporation 100 South Chimney Rock Road Greensboro, NC 27409 Mailing Address: Mr. Rudy Ball, President G.N.C. Energy Corporation 15700 Dixie Highway Telephone 502-937-1700 (KY) Louisville, KY 40272 (May use Chimney Rock Rd. address) 2. Date of Investigation: September 25, 1990 3. Report Prepared by: A.R. Hagstrom, Environmental Engineer, DEM, WSRO, WQ 4. Persons Contacted and Telephone Number: Mr. Johnny Burchell, Terminal Manager (919) 299-1551 Mr. John M. Stewart, Consultant, Bain and Palmer Inc. (919) 272-9713 5. Directions to Site: Go to the junction of US421 (West Market Street) and Chimney Rock Road. The facilities are to the immediate southwest of this intersection on Chimney Rock Road 6. Discharge Points - 001 (Northwest) - Delete 002 (Southwesta (Combining with 001) Latitude: 36 4' 28" Longitude: 790 55, 11" 930 Attach a USGS Map Extract and indicated treatment plant site and discharge point on map. USGS Quad No. C19SW or USGS Quad Name Guilford 7. Size (land available for expansion and upgrading): The land area is approx. 11.5 acres and is graded to suit the terminal layout. There is some land that could be used for upgraded treatment systems. Page 2 of 4 NC0074241 October $, 1990 8. Topography (relationship to flood plain included): The site is essentially graded to suit the office, tank and tanker loading, distillation unit, storage, and spill prevention systems. Over-all it slopes to the South from 1 to 5% slopes. The storage tanks are diked and much of the site is fenced. 9. Location of nearest dwelling: Nearest residence is over 1000 feet from the terminal. Numerous other businesses are near -by. 10. Receiving stream or affected surface waters: Upon discharge the water travels via open storm drainage ways and surface ditches to a U.T. to East Fork Deep River. The releases are rain dependent. a. Classification: WS-III b. River Basin and Subbasin No.: 030608 Cape Fear C. Describe receiving stream features and pertinent downstream uses: This drainage joins the discharges from several other terminals within approx. 500 feet and then additional terminals in the UT to East Fork Deep River. Just South of I-40 these discharges flow through two lakes (with separators) at Colonial Pipeline's facility. From the Colonial ponds the UT travels through urban and rural areas. PART II - DESCRIPTION OF DISCHARGE AND TREATMENT WORKS 1. Type of wastewater: 0 % Domestic 100% Industrial a. Volume of Wastewater: Unknown, small amounts of product and product residue are diluted by rain water. The volumes of water released is rainfall dependent and intermittent. b. Types and quantities of industrial wastewater: Oil, kerosene, and unleaded product contaminated water (low concentrations) from spills, large or small, that occur during terminal operations including tanker loading and unloading, water drainage from storage tanks, and from terminal distillation operations. Tank bottoms are removed under contract as hazardous wastes. Discharges pass through oil/water separators or tanks, before water is released to the diked areas. Water contacting products goes through one or more separators before discharges. Page 3 of 4 NCO074241 October 8, 1990 c. Prevalent toxic constituents in wastewater: Hydrocarbons, phenols, and additives for fuels. d. Pretreatment Program (POTWs only) N/A in development approved should be required not needed 2. Production rates (industrial discharges only) in pounds N/A a. highest month in the last 12 months b. highest year in last 5 years 3. Description of industrial process (for industries only) and applicable CFR Part and Subpart: Unloading of tankers with transmix and other mixes, oil, kerosene, and gasoline storage tank farm and dispensing of the products to tankers, and distillation operations to separate "Transmix" and other available mixed products. They convert various mixed products to usable products. 4. Type of treatment (specify whether proposed or existing): Oil/water separators from tanker loading area, and oil/water separators at tanks for water removal from process areas. Evaporation from diked holding areas. Valved releases with measured flows (estimated). 5. Sludge handling and disposal scheme: Tank bottoms are treated as hazardous wastes and are handled by contractors. 6. Treatment plant classification: 7. SIC Code(s) 5171 Wastewater Code(s) 37, 38, 39 PART III - OTHER PERTINENT INFORMATION 1. Is this facility being constructed with Construction Grants Funds (municipals only)? No 2. Special monitoring requests: Same as other terminals in the Greensboro area discharging to East Fork Deep River. 3. "Additional effluent limits requests: Page 4 of 4 NCO074241 October B, 1990 4. Other: This terminal appears to be clean and adequately operated. The wastewater discharges all go through property of other terminals and .become a part of those and other downstream terminals' discharges. At this point, this is one of eleven (11) discharges going into the East Fork Deep River through the Colonial Pipeline Company's ponds (each of which has oil/water separation). The upper Discharge 001 can be easily diverted to an adjacent diked area that discharges- to another dike system and to Discharge 002. PART IV - EVALUATION AND RECOMMENDATIONS The WSRO recommends that an NPDES be re -issued with a sincle discharge point, but only after the Groundwater Quality Section and the Division of Health Services has had an opportunity to comment on the Permit. This facility has existed and the facility has been discharging for many years. The following items should be considered: 1. All discharges and daily flows for each discharge should be reported. The discharge point should be designated as 002 for the Southwest Discharge that will now include the former Discharge 001. 2. Phenols shall be reported in concentration units and in lbs/day. Concentration analyses should not be required more than twice per month per discharge point. 3. All permits for Terminals discharging into the Colonial Pipeline Ponds should have the same limits. 4. Any toxicity sampling shall be done just prior to or during discharges. The tests should be of limited duration if toxicity problems are not present. 5. Sampling frequency should consider the rain dependence and consistent nature of the discharges. � qa Signature of rep t preparer Water Quality S4dpervisor INK Now NSBGRO. 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