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NC0085286_Regional Office Historical File Pre 2018 (2)
MichaeP F. Easley, Governor William G. Ross Jr., Secretary Department of Environment and Natural Resources Alan W. Klimek, RE., Director Division of Water Quality June 12, 2003 Mr. Gregory McKeeman URS Corporation 1600 Perimeter Park Drive, Suite 100 Morrisville, NC 27560 Subject: Rescission of NPDES Permit ovu Permit Number NC0085286 Former Amoco Service Station .# 57 Mecklenburg County Dear Mr. McKeem NC LiED . ' AND fo# CCDDWD:4" DORESV JUN 1 6 2003 Reference is made to your request for rescission of the subject NPDES permit, submitted by you on behalf of BP Products North America, Inc. Staff of the Mooresville Regional Office have confirmed that this permit is no longer required. Therefore, in accordance with your request, NPDES permit NC0085286 is rescinded, effective immediately. It would be greatly appreciated if you would share this information with your client upon your receipt of this letter. If in the future you wish to discharge wastewater to the State's surface waters, you must first apply for and receive a new NPDES permit. Operating a facility without a valid NPDES permit will subject the responsible party to a civil penalty of up to $25,000 per day. If you have questions about this matter, please contact Bob Sledge at (919) 733-5083, extension 547 or the Water Quality staff in our Mooresville Regional Office at (704) 663-1699. Sincerely, W. Klimek, P.E. cc: Mooresville Regional Office w/attachmen NPDES Unit Point Source Compliance — Bob Sledge - w/attachments Central Files - w/attachments Fran McPherson, DWQ Budget Office Customer Service Division of Water Quality 1617 Mail Service Center Raleigh, NC 27699-1617 1 800 623-7748 (919) 733-7015 Fax (919) 733-9612 Me o To Prepared y Subject DIVISION F WATER QUALIT5 ay , 2003 Bob Sledge Rex Gleason ar Bou-Ghazale Rescission of Permit # NC0085286 Emmet oco Service Station No. 57 4475 Randolph Road Charlotte, North Carolina Please find enclosed ape it rescission request for the subject facility. The perm it was issued on Fehr . 19, 1996 with an eff ti5ve date of April 1, 1996, mid an expiration date of August 31, 2000. The Corrective Action I P never approved and implemented. According to Alen Schiff, the UST Section considers this site to be a love priority site and, therefore, has no objections to rescission of the pennit Please remove the permit from your tracking system If you have any quesums regarding this matter, please advise. SBG t request Received Corns Bence Group 0 Region I Of ice d Unit equest Reciev din the Fa= o Signed Ann, Fee Inv©ice Getter 0 Other... ck ADpr©Driatel :. 1e'isi Performed :.n sed ur�d�ater C©rtCerrcS �'�.�TdeSSed .. Sh4uld beaaar�� nle k, nitQnng 25 not requ�.rec cfe:Oe ere ceeWer.... Denied ed I. rnediatel y ( =� • . to ��e �.►. ever Constructed ©Abandoned 0 Connected to City Sewer ken a Return Co teted Fonn to the I PRFcum( t5/20P2:003 "09:05 919733961.2 PAGE 02102 May 7, 2003 Fran McPherson NCDENR Division of Water Quality 1617 Mail Service Center Raleigh, North Carolina 27699-1617 RE: Re nest for Voidance of NPDES permit No. NCO485286 Former Amoco Service Station No. 5i7 4475 Randolph Road Charlotte, North Carolina Dear Ms. Fr 1 McPherson: On behalf of BP Products North America Inc., (BP), URS Corporation - North Carolina (URS) is requesting a voidance of the above referenced permit. A remediatian treatment system at this site was constructed and ready for use in May 1995, however the Corrective Action Plan (CAP) was never implemented. Therefore, we formally request that the permit be cancelled. URS will continue free product gauging and passive recovery at the site. Semi - product recovery reports are submitted to the NCDENR - MRO. Thank you for your consideration,. If you have any questionsor require additional inforrnation, please don't hesitate to contact me at 919-46 Sincerely, 71/, ./g/ Gregory lcKeeman URS Corporation - North Carolina cc: Ms. Rebecca Kulas, BP (electronic) Cindy Split, Williams & Ross (electronic) ENFOS (electronic) URS file (hard copy) UPS Corp©ret+cn 1600 Perimelef Perk ©rrve, 5ulte 100 Morrisville, NC 27590 Tel. 919.461 11©© Fax, 919.461 1415 25. May 7, 2003 Fran McPherson NCDENR - Division of Water Quality 1617 Mail Service Center Raleigh, North Carolina 27699-1617 RE: Request for Voidance of NPDES permit No. NC0085286 Former Amoco Service Station No. 57 4475 Randolph Road Charlotte, North Carolina Dear Ms. Fran McPherson: On behalf of BP Products North America Inc., (BP), URS Corporation - North Carolina (URS) is requesting a voidance of the above referenced permit. A remediation treatment system at this site was constructed and ready for use in May 1995, however the Corrective Action Plan (CAP) was never implemented. Therefore, we formally request that the permit be cancelled. URS will continue free product gauging and passive recovery at the site. Semi-annual free product recovery reports are submitted to the NCDENR - MRO. Thank you for your consideration. If you have any questions or require additional information, please don't hesitate to contact me at 919-461-1325. Sincerely, /e2 Gregory McKeeman URS Corporation - North Carolina cc: Ms, Rebecca Kulas, BP (electronic) Cindy Split, Williams & Ross (electronic) ENFOS (electronic) URS file (hard copy) URS Corporation 1600 Perimeter Park Drive, Suite 100 Morrisville, NC 27560 Tel: 919.461.1100 Fax: 919.461.1415 NORTH CAROLINA DEPARTMENT OF ENVIRONMENT AND NATURAL RESOURCES INVOICE Annual Permit Fee RECEIVED MAR 31 2m3 This annual fee is required by the North Carolina Administrative Code. It covers the administrative costs associated with your permit. It is required of any person holding a permit for any time during the annual fee period, regardless of the facility's operating status. Failure to pay the fee by the due date will subject the permit to revocation. Operating without a valid permit is a violation and is subject to a $10,000 per day fine. If the permit is revoked and you later decide a permit is needed, you must reapply, with the understanding the permit request may be denied due to changes in environmental, regulatory, or modeling conditions. Perrnit Numberz. _NC0085286 Amoco Oil CoI#57 JIM SCHAEFFER AMOCO OIL CO 2475 N WIND PARKWAY STE SUITE 400 ALPHARETTA GA 30004 Annual Fee Period: Invoice Date: Due Date: Annual Fee: 2/1/2003 to 1/31/2004 March 24, 2003 April 23, 2003 $715.00 Notes: 1. A $25.00 processing fee will be charged for returned checks in accordance with the North Carolina General Statute 25-3-512. 2. Non -Payment of this fee by the payment due date will initiate the permit revocation process. 3. Remit payment to: NCDENR -Division of Water Quality 1617 Mail Service Center Raleigh, North Carolina 27699-1617 4. Should you have any questions regarding this invoice, please contact the Annual Administering and Compliance Fee Coordinator at 919-733-5083 extension 210. $1.11.40441$11111'111$1.1,$$$.11$$11,1,1101$.$$$$$$$$.$1$1411$4$;;;111,0i$$$$$$$$$$$111$$$$$$$$Fitta$$$$$$$ ANNUAL PERMIT INVOICE (Retum This Portion With Check) Permit Number: NC0085286 Amoco Oil Co/#57 JIM SCHAEFFER AMOCO OIL CO 2475 N WIND PARKWAY STE SUITE 400 ALPHARETTA GA 30004 Annual Fee Period: 2/1/2003 to 1/31/2004 Invoice Date: March 24, 2003 Due Date: April 23, 2003 Annual Fee: $715.00 Check Number: 1 11SION OF W TER , LIT` Me r TBobSledge From: Prep ay°d. Subject: Rex Gleason S Brae -lea 1 eseissi n of Permit NC0085286 Former Amoco Sery ee Station No, 5 4475 Randolph Road Charlotte. North Carolina Please Fred enclosed a permit rescission request for the subject facility. The pernut as is tied on February. 19, 1996 with an effective date of April 1, 1996, and an expiration date of August 31 2000, The Corrective Action P1 was nearer approved and implemented, e rdin to Allen Schiff„ the UST I' Section considers this site to be a low priority site and, therefore, has no objections to rescission of the p it Please remove the pe lit from your tracking system, If you have any questions egarding this matter pie e advise. Sa e,y ed iri the `or.led essec � pp ro d Denied ; rna dtheQTv n i �11 c±nded e e Con= r`.r ed Boned Con e =ted to City Sewer emit Type eater 0 Other. 'vfora-ori 9197339612 PAGE 0"2,�fl2 May 7, 2003 Fran McPherson NCDENR - Division of Water Quality 1617 Mail Service Center Raleigh, North Carolina 27699-1617 RED Request for Voidance of NPDES permit No. NC008528+6 Former Amoco Service Station No. 57 4475 Randolph Road Charlotte, Nortb Carolina Dear Ms, Fran McPherson: On behalf of BP Products North Arne Inc., (BP), URS Corporation - North Carolina (URS) is requesting a voidance of the above referenced penrlit. A remediation treatment system at this site was constructed and ready for use in May 1995, however the Corrective Action Plan (CAP) was never implemented. Therefore, we formally request that the permit be cancelled. URS will continue free product gauging and passive recovery at the site. Semi-a:rrnual free product recovery reports are submitted to the NCDENR - MR©. Thank you for your consideration. If you have any questions or require additional information, please don't hesitate to contact me at 919-461-1325. Sincerely, 6#7 Gregory McKeeman URS Corporation - North Carolina cc: Ms Rebecca Kula, BP (electronic) Cindy Split, Williams /Q. Ross (electronic) ENFOS (electronic) URS file (hard copy) URS C7rPoretoe�r 16D0 Perrrmetitr' MPrrisviiie, NC 2756C Tel 919-461 1100 Fix; 919.461 1415 State of North Carolina Department of Environment, Health and Natural Resources Division of Environmental Management James B. Hunt, Jr., Governor Jonathan B. Howes, Secretary A. Preston Howard, Jr., P.E., Director February 19, 1996 Ms. Heidi Passales Amoco Corporation 375 Northridge Drive, 600 Atlanta, North Carolina 30350 Subject: NPDES Permit Issuance Permit No. NC0085286 Amoco Service Station #57 Mecklenburg County Dear Ms. Passales: In accordance with the application for a discharge permit received on September 5, 1995, the Division is forwarding herewith the subject NPDES permit. This permit is issued pursuant to the requirements of North Carolina General Statute 143-215.1 and the Memorandum of Agreement between North Carolina and the U.S. Environmental Protection Agency dated December 6, 1983. If any pans, 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, Post Office Drawer 27447, Raleigh, North Carolina 27611-7447. Unless such demand is made, this decision shall be final and binding. Please take note 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 requirements to obtain other permits which may be required by the Division of Environmental Management or permits required by the Division of Land Resources, Coastal Area Management Act or any other Federal or Local governmental permit that may be required. If you have any questions concerning this permit, please contact Jeanette Powell at telephone number (919)733-5083, extension 537. Sincerely, David .k A. Preston Howard, cc: Central Files Mooresville Regional Office, Water Quality Section Mr. Roosevelt Childress, EPA Permits and Engineering Unit Facility Assessment Unit Mecklenburg County Health Department P.E. P.O. Box 29535, Raleigh, North Carolina 27626-0535 Telephone 919-733-5083 FAX 919-733-0719 An Equal Opportunity Affirmative Action Employer 50% recycled/ 10% post -consumer paper Permit No. NC0085286 STATE OF NORTH CAROLINA DEPARTMENT OF ENVIRONMENT, HEALTH, AND NATURAL RESOURCES DIVISION OF ENVIRONMENTAL MANAGEMENT PERMIT TO DISCHARGE WASTEWATER UNDER THE NATIONAL POLLUTANT. DISCHARGE ELIMINATION SYSTEM In compliance with the provision of North Carolina General Statute 143-215.1, other lawful standards and regulations promulgated and adopted by the North Carolina Environmental Management Commission, and the Federal Water Pollution Control Act, as amended, is hereby authorized to discharge wast Amoco Corporation ater from a facility located at Amoco Service Station #57 4475 Randolph Road Charlotte Mecklenburg County to receiving waters designated as an unnamed tribut. oC u n Creek in the Catawba River Basin in accordance with effluent limitations, monitoring requirements, and other conditions set forth in Parts I, II, and III hereof. The per cit shall became effective April 1, 1996. This permit and the authorization to discharge shall expire at midnight on August 31, 2000. Signed this day February 19, 1996. A. Preston Howard, Jr., F.E., Director Division of Environmental Management By Authority of the Environmental Management Commission is hereby authorized to EN TTO PERMIT COVER SHEET Amoco Corporation Permit o. N After receiving an Authorization to Construct. from the Division of n irony ental Management ement, . nstruct treatment facilities located at Amoco Service Station #57 at 4475 Randolph Road, Charlotte, in Mecklenburg County as necessary to meet the limits of this permit for discharge of treated wastewater at outfall 001 (see Part f of this permit), and: 2. Discharge wastewater from said treatment works at the location specified on the attached' map into an unnamed tributary to McMullen Creek which is classified Class C waters in the Catawba River Basin. .(1. IIiII ClENTLIMITATIONS AND MONITORIN REQUIREMENTS NAL Duringt1 ' serial numb Pe it N. NC beginning on the effective date of the permit. and lasting until expiration, the Perm' i utho ed tra discharge from routta.11 Such discharges shall be limited and monitored by the pemittee as specified below: fluent Chare tertstics Oil and Greasc I3cnrcn Toluene Naphthalene MTBE aI na Sample location. E - cnt Dts harge L lily. Avg. )1 4 MGD ns Montt° Maas Continuous y Monthly ly Monthly 25) tign nq Requirements Sample Semple Recorder r Grab Grab Grab E Grab E Grab E IIEI E SIIALL I3E NO I IS IIARGE OF FLOATING SOLIDS OR FOAMIN OTTIER TI-IAN BRACE A OUNTS. FART Section B. Schedule of Corny] nc 1. The pennittee shall comply with Final :Effluent Limitations specified for schar es accordance with the following schedule: Permittee shall comply with Final Effluent Lifflnations bythe effective date of the perm' unless specified below, 2.. Permittee shall at all titres p side the - a on and existing facilities at oparttum efficiency. 3 .o later th 14 c lender >°s following a date identified in the above schedule of compliance, the pe atte shall submit either a report of`pr,rss or, in the case of specific actions being required by identified dates, a ssmitten notice of compliance or noncompliance. In the fatter case, the notice shall include the cause of noncompliance; any remedial actions taken, and the probability of meeting the next schedule requirements. Part II Page 1 of 14 PART II STANDARD C©NDMONS FOR NPDES PERMITS SECTION A. D FTNIn O S 1. Permit js,sui,ng Authority The Director of the Division of En .rottrnenta114'Ianagement 2. DAM or Pivi5ign Means the Division of Environmental Management, Department of Environment, Health and Natural Resources. 3. Used herein means the North Carolina. Environmental Management Commission. 4. ,,Net or e Act", The Federal Water Pollution Control Act, also known as the Clean Water Act, as amended, 33 USC 1251, et. seq. 5. Mass/Day Measurements a. The °'monthly average discharge" is defined as the total mass of all daily discharges sampled and/or measured during a calendar month on which daily discharges are sampled and measured, divided by the number of daily discharges sampled and/or measured during such month. It is therefore, an arithmetic mean found by adding the weights of the pollutant found each day of the month and then dividing this sum by the number of days the tests were reported. The limitation is identified as "'Monthly Average" in Part I of the permit b. The "weekly average discharge" is defined as the total mass of all daily discharges sampled and/or measured during the calendar week (Sunday - Saturday) on which daily discharges are sampled and measured, divided by the number of daily discharges sampled and/or measured during such week. It is, therefore, an arithmetic mean found by adding the weights of pollutants found each day of the week and then dividing this sum by the number of days the tests were reported. This limitation is identified as "Weekly Average" in Part I of the permit. c. The "maximum daily discharge" is the total mass (weight) of a pollutant discharged during a calendar day. If only one sample is taken during any calendar day the weight of pollutant calculated from it is the "maximum daily discharge." This limitation is identified as "Daily Maximum," in Part I of the permit. d. The "average annual discharge is defined as the total mass of all daily discharges sampled and/or measured during the calendar year on which daily discharges are sampled and measured. divided by the number of daily discharges sampled and/or measured during such year, It is, therefore, an arithmetic mean found by adding the 'weights of pollutants found each day of the year and then dividing this sum by the number of days the tests were reported. This limitat cn is defined as "Annual Average" in Pan I of the permit. Part II Page 2 of 14 6, Concentration Measurement a. The "average monthly concentration," other than for fecal coliform bacteria, is the sum of the concentrations of all daily discharges sampled and/or measured during a calendar month on which daily discharges are sampled and measured, divided by the numbcr of daily discharges sampled and/or measured during such month (arithmetic mean of the daily concentration values). The daily concentration value is equal to the concentration of a composite sample or in the case of grab samples is the arithmetic mean (weighted by flow value) of all the samples collected during that calendar day. The average monthly count for fecal coliforrn bacteria is the geometric mean of the counts for samples collected during a calendar month. This limitation is identified as "Monthly Average" under "Other Limits" in Part I of the permit. b. The "average weekly concentration," other than for fecal coliform bacteria, is the sum of the concentrations of all daily discharges sampled and/or measured during a calendar week (Sunday/Saturday) on which daily discharges are sampled and measured divided by the number of daily discharges sampled and/or measured during such week (arithmetic mean of the daily concentration values), The daily concentration value is equal to the concentration of a composite sample or in the case of grab samples is the arithmetic mean (weighted by flow value) of all the samples collected during that calendar day. The average weekly count for fecal coliforrn bacteria is the geometric mean of the counts for samples collected during a calendar week, This limitation is identified as "Weekly Average" under "Other Limits" in Part I of the permit. c. The ""maximum daily concentration" is the concentration of a pollutant discharge during a calendar day. If only one sample is taken during any calendar day the concentration of pollutant calculated from it is the "Ivlaximum Daily Concentration", It is identified as "Daily Maximum" under "Other Limits" in Part I of the permit. d. The "average annual concentration," other than for fecal coliform bacteria, is the sum of the concentrations of all daily discharges sampled and/or measured during a calendar year on which daily discharges are sampled and measured divided by the number of daily discharges sampled and/or measured during such year (arithmetic mean of the daily concentration values). The daily concentration value is equal to the concentration of a composite sample or in the case of grab sarnples is the arithmetic mean (weighted by flow value) of all the sarnples collected during that calendar day . The average yearly count for fecal coliforrn bacteria is the geometric mean of the counts for samples collected during a calendar year. This limitation is identified as "Annual Average" under "Other Limits" in Part I of the permit, The "daily average concentration" (for dissolved oxygen) is the minimum allowable amount of dissolved oxygen required to be available in the effluent prior to discharge averaged over a calendar day, If only one dissolved oxygen sample is taken over a calendar day,the sample is considered to be the "daily average concentration" for the discharge. It is identified as "daily average" in the text of Part. I. The "quarterly average concentration" is the average of all samples taken over a calendar quarter. It is identified as "Quarterly Average Limitation" in the text of Part I of the permit. A calendar quarter is defined as one of the following distinct periods: January through March, April through June, July through September, and October through December. Part II Page 3 of 14 Other Measurements a. Flow, (MGD): The flow limit expressed in this permit is the 24 hours average flow, averaged monthly. It is determined as the arithmetic mean of the total daily flows recorded during the calendar month. b. An "instantaneous flow measurement" is a measure of flow taken at the time of sampling, when both the sample and flow will be representative of the total discharge. c. A "continuous flow measurement" is a measure of discharge flow from the facility which occurs continually without interruption throughout the operating hours of the facility. Flow shall be monitored continually except for the infrequent times when there may be no flow or for infrequent maintenance activities on the flow device. . Types of,Samples a. Composite Sample: A composite sample shall consist of: (1) a series of grab samples collected at equal time intervals over a 24 hour period of discharge and combined proportional to the rate of flow measured at the time of individual sample collection, or (2) a series of grab samples of equal volume collected over a 24 hour period with the time intervals between sarnples determined by a preset number of gallons passing the sarnpling point. Flow measurement between sample intervals shall be determined by use of a flow recorder and totalizer, and the present gallon interval between sample collection fixed at no greater than 1/24 of the expected total daily flow at the treatment system, or (3) a single, continuous sample collected over a 24 hour period proportional to the rate of flow. In accordance with (1) above, the time interval between influent grab samples shall be no greater than once per hour, and the time interval between effluent grab samples shall be no greater than once per hour except at wastewater treatment systems having a detention tirne of greater than 24 hours. In such cases, effluent grab samples may be collected at time intervals evenly spaced over the 24 hour period which are equal in number of hours to the detention time of the system in number of days. However, in no case may the time interval between effluent grab samples be greater than six (6) hours nor the number of samples less than four (4) during a 24 hour sampling period. b. Grab Sample: Grab samples are individual samples collected over a period of time not exceeding 15 minutes; the grab sample can be taken manually. Grab samples must be representative of the discharge or the receiving waters. 9. Calculation of Means a Arithmetic Mean: The arithmetic mean of any set of values is the summation of the individual values divided by the number of individual values, b. Geometric Mean: The geometric mean of any set of values is the Nth root of the product of the individual values where N is equal to the number of individual values. The geometric mean is equivalent to the antilog of the arithmetic mean of the logarithms of the individual values. For purposes of calculating the geometric mean, values of zero (0) shall be considered to be one (1). Part LI Page 4 of 14 c. Weighted by Flow Value: Weighted by flow value means the summation of each concentration times its respective flow divided by the summation of the respective flows. 10. Calendar Day A calendar day is defined as the period from midnight of one day until midnight of the next day. However, for purposes of this permit, any consecutive 24-hour period that reasonably represents the calendar day may be used for sampling. j(&&zrdous_Sybstance A hazardous substance means any substance designated under 40 CFR Part 1.16 pursuant to Section 311 of the Clean Water Act. 12. Toxic Pollutant A toxic pollutant is any pollutant listed as toxic under Section 307(a)(1) of the Clean Water Act. CTION B. GENERAL. CCINC1TJQNS 1. Pity to Comply The permittee must comply with all conditions of this permit. Any permit noncompliance constitutes a violation of the Clean Water Act and is grounds for enforcement action; for permit termination, revocation and reissuance, or modification; or denial of a permit renewal application. a. The permittee shall comply with effluent standards or prohibitions established under section 307(a) of the Clean Water Act for toxic pollutants and with standards for sewage sludge use or disposal established under section 405(d) of the Clean Water Act within the time provided in the regulations that establish these standards or prohibitions or standards for sewage sludge use or disposal, even if the permit has not yet been modified to incorporate the requirement. b. The Clean Water Act provides that any person who violates a permit condition is subject to a civil penalty not to exceed $25,000 per day for each violation. Any person who negligently violates any permit condition is subject to criminal penalties of $2,500 to $25,000 per day of violation, or imprisonment for not more than 1 year, or both. Any person who knowingly violates permit conditions is subject to criminal penalties of $5,000 to $50,000 per day of violation, or imprisonment for not more than 3 years, or both. Also, any person who violates a permit condition may be assessed an administrative penalty not to exceed $10,000 per violation with the maximum amount not to exceed $125,€ 00. [Ref: Section 309 of the Federal Act 33 U.S.C. 1319 and 40 CFR 122.41 (a)] c. Under state Iaw, a civil penalty of not more than ten thousand dollars ($10,000) per violation may be assessed against any person who violates or fails to act in accordance with the terms, conditions, or requirements of a permit. [Ref: North Carolina General Statutes § 143-215.6A] d. Any person may be assessed an administrative penalty by the Administrator for violating section 301, 302, 306, 307, 308, 318, or 405 of the Act, or any permit condition or limitation implementing any of such sections in a permit issued under section 402 of the Act. Administrative penalties for Class I violations are not to exceed $10,000 per violation, with the maximum amount of any Class I penalty assessed not to exceed $25,000. Part II Page 5 of 14 Penalties for Class II violations are not to exceed $10,000 per day for each day during which the violation continues, with the maximum amount of any Class II penalty not to exceed $125,000. 2, pllG'' to Mitigate The permittee shall take all reasonable steps to minimize or prevent any discharge or sludge use or disposal in violation of this permit which has a reasonable likelihood of adversely affecting human health or the environment. 3, Civil jndcriminal Liability Except as provided in permit conditions on "Bypassing" (Part II, C-4) and "Power Failures" (Pan II, C-7), nothing in this permit shall be construed to relieve the permittee from any responsibilities, liabilities, or penalties for noncompliance pursuant to NCGS 143-215.3, 143- 215.6 or Section 309 of the Federal Act, 33 USC 1319. Furthermore, the permittee is responsible for consequential damages, such as fish kills, even though the responsibility for effective compliance may be temporarily suspended. 4, Oil and J-iazardous Substance Liability Nothing in this permit shall be construed to preclude the institution of any legal action or relieve the permittee from any responsibilities, liabilities, or penalties to which the permittee is or may be subject to under NCGS 143-215.75 et seq. or Section 311 of the Federal Act, 33 USG 1321. Furthermore, the permittee is responsible for consequential darnages, such as fish kills, even though the responsibility for effective compliance may be temporarily suspended. 5. ` perry Rights The issuance of this permit does not convey any property rights in either real or personal property, or any exclusive privileges, nor does it authorize any injury to private property or any invasion of personal rights, nor any i fringement of Federal, State or local laws or regulations. 6. 9nshore or Offshore Construction This permit does not authorize or approve the construction of any onshore or offshore physical structures or facilities or the undertaking of any work in any navigable waters. 7. a,verabiliry The provisions of this permit are severable, and if any provision of this permit, or the application of any provision of this permit to any circumstances, is held invalid, the application of such provision to other circumstances, and the remainder of this permit, shall not be affected thereby. 8. .per tpFrQvide Inforn do The permittee shall furnish to the Permit Issuing Authority, within a reasonable time, any information which the Pr: -it Iss_ing Authority rnay request to determine whether cause exists for modifying, revoking a::.1 reissaing, or terminating this permit or to determine compliance with this permit_ The ,"ennittec shall also furnish to the Permit Issuing Authority upon request, copies of records requireu to be kept by this permit. Part II Page 6 of I4 9. Dtit' to Reapply If the permittee wishes to continue an activity regulated by this permit after the expiration date of this permit, the permittee must apply for and obtain a new pernnit. 10. Expiralion of Permit The permittee is not authorized to discharge after the expiration date. In order to receive automatic authorization to discharge beyond the expiration date, the permittee shall submit such information, forms, and fees as are required by the agency authorized to issue permits no later than 180 days prior to the expiration date. Any permittee that has not requested renewal at least 180 days prior to expiration, or any permittee that does not have a permit after the expiration and has not requested renewal at least 180 days prior to expiration, will subject the permittee to enforcement procedures as provided in NCGS 143-215.6 and 33 USC 1251 et. seq. 11. Signatory Requirements All applications, reports, or information submitted to the Permit Issuing Authority shall be signed and certified. a. All permit applications shall be signed as follows: (1) For a corporation: by a responsible corporate officer. For the purpose of this Section, a responsible corporate officer means: (a) a president, secretary, treasurer or vice president of the corporation in charge of a principal business function, or any other person who performs similar policy or decision making functions for the corporation, or (b) the manager of one or more manufacturing production or operating facilities employing more than 250 persons or having gross annual sales or expenditures exceeding 25 million (in second quarter 1980 dollars), if authority to sign documents has been assigned or delegated to the manager in accordance with corporate procedures. (2) For a partnership or sole proprietorship: by a general partner or the proprietor, respectively; or (3) For a municipality, State, Federal, or other public agency: by either a principal executive officer or ranking elected official, b. All reports required by the permit and other information requested by the Permit Issuing Authority shall be signed by a person described above or by a duly authorized representative of that person. A person is a duly authorized representative only if: (1) The authorization is made in writing by a person described above; (2) The authorization specified either an individual or a position having responsibility for the overall operation of the regulated facility or activity, such as the position of plant manager, operator of a well or well field, superintendent, a position of equivalent responsibility, or an individual or position having overall responsibility for environmental matters for the company, (A duly authorized representative may thus be either a named individual or any individual occupying a named position.); and (3) The written authorization is submitted to the Permit Issuing Authority. Part II Page 7 of 14 Certifications Any person signing a document under paragraphs a. or b. of this section shall make the following certification: "I certify, under penalty of law, that this document and all attachments were prepared under my direction or supervision in accordance with a system designed to assure that qualified personnel properly gather and evaluate the information submitted. Based on my inquiry of the person or persons who manage the system, or those persons directly responsible for gathering the information, the information submitted is, to the best of my knowledge and belief, true, accurate, and complete. I am aware that there are significant penalties for submitting false information, including the possibility of fines and imprisonment for knowing violations." 12. Permit, Actions This permit may be modified, revoked and reissued, or terminated for cause. The filing of a request by the permittee for a permit modification, revocation and reissuance, or termination, or a notification of planned changes or anticipated noncompliance does not stay any permit condition. 13. Permit 1MQdification. Revocation And ReissuanQQ. or Terminatio The issuance of this permit does not prohibit the pernkit issuing authority from reopening and modifying the permit, revoking and reissuing the permit, or terminating the permit as allowed by the laws, rules, and regulations contained in Title 40, Code of Federal. Regulations, Parts 122 and 123; Title 15A of the North Carolina Administrative Code, Subchapter 2H .0100; and North Carolina General Statute 143-215.1 et. aL 14. Previous Per-rpjts All previous National Pollutant Discharge Elimination System Permits issued to this facility,. whether for operation or discharge, are hereby revoked by issuance of this permit. [The exclusive authority to operate this facility arises under this permit. The authority to operate the facility under previously issued permits bearing this number is no longer effective. I The conditions, requirements, terms, and provisions of this permit authorizing discharge under the National Pollutant Discharge Elimination System govern discharges from this facility. i$LOTION C, OPERATION ANC,\JAJNT NANC,'E OF POLLUTION CONTROLS 1. Certified Operator Pursuant to Chapter 90A-44 of North Carolina General Statutes, and upon classification of the facility by the Certification Commission, the permittee shall employ a certified wastewater treatment plant operator in cesponsible charge (ORC) of the wastewater treatment facilities, Such operator must hold a certification of the grade equivalent to or greater than the classification assigned to the wastewater treatment facilities by the Certification Commission. The permittee must also employ a certified back-up operator of the appropriate type and any grade to comply with the conWtinns of Title 15A, Chapter 8A .0202. The ORC of the facility must visit each Class Ifacility at leastweekly and each Class II, III, and IV facility at least daily, excluding weekends and holidays, and must properly manage and document daily operation and maintenance of the facility and must comply with all other conditions of Title 15A, Chapter 8A .0202. Once he facility is classified, the permitiee shall submit a letter to the Certification Commission which designates the operator in responsible charge within thirty days after the wastewater treatment facilities are 50% complete. 2. pro. ion artd Maintenance Part II Page 8 of 14 The permittee shall at all times properly operate and maintain all facilities and systems of treatment and control (and related appurtenances) which are installed or used by the permittee to achieve compliance with the conditions of this permit. Proper operation and maintenance also includes adequate laboratory controls and appropriate quality assurance procedures. This provision requires the operation of back-up or auxiliary facilities or similar systems which are installed by a permittee only when the operation is necessary to achieve compliance with the conditions of the permit. 3. Need to Halt or Reduce not a Defense It shall not be a defense for a permittee in an enforcement action that it would have been necessary to halt or reduce the permitted activity in order to maintain compliance with the condition of this permit. 4. Bypassing of Treatment Fjcil ties a. Definitions (l) "Bypass" means the known diversion of waste streams from any portion of a treatment facility including the collection system, which is not a designed or established or operating mode for the facility. (2) "Severe property damage" means substantial physical damage to property, damage to the treatment facilities which causes them to become inoperable, or substantial and permanent loss of natural resources which can reasonably be expected to occur in the absence of a bypass. Severe property damage does not mean economic loss caused by delays in production. b. Bypass not exceeding limitations. The permittee may allow any bypass to occur which does not cause effluent limitations to be exceeded, bur only if it also is for essential maintenance to assure efficient operation. These bypasses are not subject to the provisions of Paragraphs c. and d. of this section. c. Notice (1) Anticipated bypass. If the permittee knows in advance of the need for a bypass, it shall submit prior notice, if possible at least ten days before the date of the bypass; including an evaluation of the anticipated quality and affect of the bypass. (2) Gnanucipated bypass. The permittee shall submit notice of an unanticipated bypass as required in Part II, E. 6. of this permit. (24 hour notice). d. Prohibition of Bypass (1) Bypass is prohibited and the Permit Issuing Authority may take enforcement action against a permittee for bypass, unless: (A) Bypass was unavoidable to prevent loss of life, personal injury or severe property damage; There were no feasible alternatives to the bypass, such as the use of auxiliary treatment facilities, retention of untreated wastes or maintenance during normal Part II Page 9 of 14 periods of equipment downtime. This condition is not satisfied if adequate backup equipment should have been installed in the exercise of reasonable engineering judgment to prevent a bypass which occurred during normal periods of equipment downtime or preventive maintenance; and (C) The permittee submitted notices as required under Paragraph c. of this section. (2) The Permit Issuing Authority may approve an anticipated bypass, after considering its adverse affects, if the Permit Issuing Authority determines that it will meet the three conditions listed above in Paragraph d. (I) of this section. 5. Upsets a. Definition. "Upset " means an exceptional incident in which there is unintentional and temporary noncompliance with technology based permit effluent limitations because of factors beyond the reasonable control of the permittee. An upset does not include noncompliance to the extent caused by operational error, improperly designed treatment facilities, inadequate treatment facilities, lack of preventive maintenance, or careless or improper operation. b. Effect of an upset. An upset constitutes an affirmative defense to an action brought for noncompliance with such technology based permit effluent limitations if the requirements of paragraph c. of this condition are met, No determination made during administrative review of claims that noncompliance was caused by upset, and before an action for noncompliance, is final administrative action subject to judicial review. c. Conditions necessary for a demonstration of upset. A permittee who wishes to establish the affirmative defense of upset shall demonstrate, through properly signed, contemporaneous operating logs, or other relevant evidence that: (1) An upset occurred and that the permittee can identify the cause(s) of the upset; (2) The permittee facility was at the time being properly operated; and (3) The permittee submitted notice of the upset as required in Part II, E. 6. (b) (B) of this permit. (4) The permittee complied with any remedial measures required under Part II, B. 2. of this permit. d. Burden of proof. Li any enforcement proceeding the permittee seeking to establish the occurrence of an upset has the burden of proof. 6, RemQvcd Si4bstancea Solids, sludges, filter backwash, or other pollutants removed in the course of treatment or control of wastewaters shall be utilized/disposed of in accordance with NCGS 143-215.1 and in a manner such as to prevent any pollutant from such materials from entering waters of the State or navigable waters of the United States. The permittee shall comply with all existing federal Part II Page 10 of 14 regulations governing the disposal of sewage sludge. Upon promulgation of 40 CFR Part 503, any permit issued by the Permit Issuing Authority for the utilization/disposal of sludge may be reopened and, modified, or revoked and reissued, to incorporate applicable requirements at 40 CFR Part 503. The permittee shall comply with applicable 40 CFR Part 503 Standards for the Use and Disposal of Sewage Sludge (when promulgated) within the time provided in the regulation, even if the permit is not modified to incorporate the requirement. The permitter shall notify the Permit Issuing Authority of any significant change in its sludge use or disposal practices, 7. Power Failures The permittee is responsible for maintaining adequate safeguards as required by DEM Regulation, Title 15A, North Carolina Administrative Code, Subchapter 2H, .0124 Reliability, to prevent the discharge of untreated or inadequately treated wastes during electrical power failures either by means of alternate power sources, standby generators or retention of inadequately treated effluent. SECTION D..MQNITCRJNG AND RECORDS 1. Representative Sampling Samples collected and measurements taken, as required herein, shall be characteristic of the volume and nature of the permitted discharge. Samples collected at a frequency less than daily shall be taken on a day and time that is characteristic of the discharge over the entire period which the sample represents. All samples shall be taken at the monitoring points specified in. this permit and, unless otherwise specified, before the effluent joins or is diluted by any other wastestream, body of water, or substance. Monitoring points shall not be changed without notification to and the approval of the Permit Issuing Authority. Reporting Monitoring results obtained during the previous months) shall be summarized for each month and reported on a monthly Discharge Monitoring Report (DMR) Form (DEM No, MR 1,1.1, 2, 3) or alternative forms approved by the Director, DEM, postmarked no later than the 30th day following the completed reporting period. The first DMR is due on the last day of the month following the issuance of the permit or in the case of a new facility, on the last day of the month following the commencement of discharge. Duplicate signed copies of these, and all other reports required herein, shall be submitted to the following address: Division of Environmental Management Water Quality Section ATTENTIQN: antral Files Post Office Box 29535 Raleigh, North Carolina 27626-0535 Flow Measnts Appropriate flow measurement devices and methods consistent with accepted scientific practices shall be selected and used to ensure the accuracy and reliability of measurements of the volume of monitored discharges, The devices shall be installed, calibrated and maintained to ensure that the accuracy of the measurements are consistent with the accepted capability of that type of device. Devices selected shall be capable of measuring flows with a maximum deviation of less than + 10% from the true discharge rates throughout the range of expected Part II Page 11 of 14 discharge volumes. Once -through condenser cooling water flow which is monitored by pump logs, or pump hour meters as specified in Part I of this permit and based on the manufacturer's pump curves shall not be subject to this requirement. 4. Test Procedures Test procedures for the analysis of pollutants shall conform to the EMC regulations published pursuant to NCGS 143-215.63 et. seq, the Water and Air Quality Reporting Acts, and to regulations published pursuant to Section 304(g), 33 USC 1314, of the Federal Water Pollution Control Act, as Amended, and Regulation 40 CFR 136; or in the case of sludge use or disposal, approved under 40 CFR 136, unless otherwise specified in 40 CFR 503, unless other test procedures have been specified in this permit. To meet the intent of the monitoring required by this permit, all test procedures must produce minimum detection and reporting levels that are below the permit discharge requirements and. all data generated must be reported down to the minimum detection or lower reporting level of the procedure. If no approved methods are determined capable of achieving minimum. detection and reporting levels below permit discharge requirements, then the most sensitive (method with the lowest possible detection and reporting level) approved method must be used. The Clean Water Act provides that any person who falsifies, tampers with, or knowingly renders inaccurate, any monitoring device or method required to be maintained under this permit shall, upon conviction, be punished by a fine of not more than $10,000 per violation, or by imprisonment for not more than two years per violation, or by both. If a conviction of a person is for a violation committed after a first conviction of such person under this paragraph, punishment is a fine of not more than $20,000 per day of violation, or by imprisonment of not more than 4 years, or both. 6. Records Retention Except for records of monitoring information required by this permit related to the perrnittee's sewage sludge use and disposal activities, which shall be retained for a period of at least five years (or longer as required by 40 CFR 503), the permittee shall retain records of all monitoring information, including all calibration and maintenance records and all original strip chart recordings for continuous monitoring instntmentation, copies of all reports required by this permit, for a period of at least 3 years from the date of the sample, measurement, report or application. This period may be extended by request of the Director at any time. 7. Recording,Result� For each measurement or sample taken pursuant to the requirements of this permit, the permittee shall record the following information: a. The date, exact place, and time of sampling or measurements; b. The individual(s) who performed the sampling or measurements; c. The date(s) analyses were performed; d The individual(s) who performed the analyses; e. The analytical techniques or methods used; and f. The results of such analyses. Pan II Page 12 of 14 8. Inspection and Emu The perrnirtee shall allow the Director, or an authorized representative (including an authorized contractor acting as a representative of the Director), upon the presentation of credentials and other documents as may be required by law, to; a. Enter upon the permittee's premises where a regulated facility or activity is located or conducted, or where records must be kept under the conditions of this permit. b. Have access to and copy, at reasonable times, any records that must be kept under the conditions of this permit; c. Inspect at reasonable times any facilities, equipment (including monitoring and control equipmen(), practices, or operations regulated or required under this permit; and d. Sample or monitor at reasonable times, for the purposes of assuring, permit compliance or as otherwise authorized by the Clean Water Act, any substances or parameters at any location. SECTION E. REPORTING REQUIREMENTS I. Change in Discharge All discharges authorized herein shall be consistent with the terms and conditions of this permit. The discharge of any pollutant identified in this permit more frequently than or at a level in excess of that authorized shall constitute a violation of the permit. 2. Planned Ch4tIgs The perrnitte,e shall give notice to the Director as soon as possible of any planned physical alterations or additions to the permitted facility. Notice is required only when: a. The alteration or addition to a permitted facility may meet one of the criteria for determining whether a facility is a new source in 40 CFR Part 122.29 (b); or b. The alteration or addition could significantly change the nature or increase the quantity of pollutants discharged. This notification applies to pollutants which are subject neither to effluent limitations in the permit, nor to notification requirements under 40 CFR Part 122.42 (a) (1). c. The alteration or addition results in a significant change in the permittee's sludge use or disposal practices, and such alternation, addition or change may justify the application of permit conditions that are different from or absent in the existing permit, including notification of additional use or disposal sites not reported during the permit application process or not reported pursuant to an approved land application plan. ,AmicipaLecl Noncompliance The permittee shall give advance notice to the Director of any planned changes in the facility or activity which may result in noncompliance with permit requirements. Part II Page 13 of 14 4. Transfers This permit is not transferable to any person except after notice to the Director. The Director may require modification or revocation and reissuance of the permittee and incorporate such other requirements as may be necessary under the Clean Water Act. Monitoring Reports Monitoring results shall be reported at the intervals specked elsewhere in this permit. a. Monitoring results must be reported on a Discharge Monitoring Report (DMR) (See Part II. D. 2 of this permit) or forms provided by the Director for reporting results of monitoring of sludge use or disposal practices. b. If the permittee monitors any pollutant more frequently than required by the permit, using test procedures specified in Part II, D. 4. of this permit or in the case of sludge use or disposal, approved under 40 CFR 503, or as specified in this permit, the results of this monitoring shall be included in the calculation and reporting of the data submitted in the DMR. c. Calculations for all limitations which require averaging of measurements shall utilize an. arithmetic mean unless otherwise specified by the Director in the permit. 6. Twenty-four Hour Reporting a. The permittee shall report to the central office or the appropriate regional office any noncompliance which may endanger health or the environment. Any information shall be provided orally within 24 hours from the time the permittee became aware of the circumstances. A written submission shall also be provided within 5 days of the time the permittee becomes aware of the circumstances. The written submission shall contain a description of the noncompliance, and its cause; the period of noncompliance, including exact dates and times, and if the noncompliance has not been corrected, the anticipated time it is expected to continue; and steps taken or planned to reduce, eliminate, and prevent reoccurrence of the noncompliance. b. The following shall be included as information which must be reported within 24 hours under this paragraph: (l) Any unanticipated bypass which exceeds any effluent limitation in the permit. 2) Any upset which exceeds any effluent limitation in the permit. (3) Violation of a maximum daily discharge limitation for any of the pollutants listed by the Director in the permit to be reported within 24 hours. c. The Director may waive the written report on a case -by -case basis for reports under paragraph h, above of this condition if the oral report has been received within 24 hours. 7. Other Noncompliance The permittee shall report l i .xrances of noncompliance not reported under Part II. F. 5 and 6, of this permit at the time TMnnoni.oring reports are submitted, Thw reports shall contain the information listed in Part E. 6. of this permit. Part II Page 14 of 14 8. Other Information Where the permittee becomes aware that it failed to submit any relevant facts in a permit application, or submitted incorrect information in a permit application or in any report to the Director, it shall promptly submit such facts or information. 9. Noncompliance Nisincatioa The permittee shall report by telephone to either the central office or the appropriate regional office of the Division as soon as possible, but in no case more than 24 hours or on the next working day following the occurrence or first knowledge of the occurrence of any of the following: a. Any occurrence at the water pollution control facility which results in the discharge of significant amounts of wastes which are abnormal in quantity or characteristic, such as the dumping of the contents of a sludge digester; the known passage of a slug of hazardous substance through the facility; or any other unusual circumstances. b. Any process unit failure, due to known or unknown reasons, that render the facility incapable of adequate wastewater treatment such as mechanical or electrical failures of pumps, aerators, compressors, etc. c. Any failure of a pumping station, sewer line, or treatment facility resulting in a by-pass directly to receiving waters without treatment of all or any portion of the influent to such station or facility. Persons reporting such occurrences by telephone shall also file a written report in letter form within 5 days following first knowledge of the occurrence. 10. Availability of Reponai Except for data determined to be confidential under NCGS 143-215.3(a)(2) or Section 308 of the Federal Act, 33 USC 1318, all reports prepared in accordance with the terms shall be available for public inspection at the offices of the Division of Environmental Management. As required by the Act, effluent data shall not be considered confidential. Knowingly making any false statement on any such report may result in the imposition of criminal penalties as provided for in NCGS I43-215.1(b)(2) or in Section 309 of the Federal Act, 11. Penalties for Falsification of Repos The Clean Water Act provides that any person who knowingly makes any false statement, representation, or certification in any record or other document submitted or required to be maintained under this permit, including monitoring reports or reports of compliance or noncompliance shall, upon conviction, be punished by a fine of not more than $10,000 per violation, or by imprisonment for not more than two years per violation, or by both. PART III OTHER REQUIREMENTS A. Construction No construction of wastewater treatment facilities or additions to add to the plant's treatment capacity or to change the type of process utilized at the treatment plant shall be begun until Final Plans and Specifications have been submitted to the Division of Environmental Management and written approval and Authorization to Construct has been issued. B. Groundwater Monitoring The permittee shall, upon written notice from the Director of the Division of Environmental Management, conduct groundwater monitoring as may be required to determine the compliance of this NPDES permitted facility with the current groundwater standards. C. Changes in Discharges of Toxic Substances The permitter shall notify the Permit Issuing Authority as soon as it mows or has reason to believe: a.That any activity has occurred or will occur which would result in the discharge, on a routine or frequent basis, of any toxic pollutant which is not limited in the permit, if that discharge will exceed the highest of the following "notification levels"; (1) One hundred micrograms per liter (100 ug/1); (2)Two hundred micrograms per liter (200 ug/1) for acrolein and acrylonitrile; five hundred micrograms per liter (500 ug/1) for 2.4-dinitrophenol and for 2-methyl-4.6- dinitrophenol; and one milligram per liter (1 mg/1) for antimony; (3) Five (5) times the maximum concentration value reported for that pollutant in the permit application. b. That any activity has occurred or will occur which would result in any discharge, on a non -routine or infrequent basis, of a toxic pollutant which is not limited in the permit, if that discharge will exceed the highest of the following "notification levels"; (I) Five hundred micrograms per liter (500 ug/1); (2) One milligram per liter (1 mg/1) for antimony; (3) Ten (10) times the maximum concentration value reported far that pollutant in the permit application, D. & uirement IQS:oppaualsy Ev li�ajejt]rP • ari _ ctr ey Diseharg°.i The permittee shall continually evaluate alI wastewater disposal alternatives and pursue the most environmentally sound alternative of the reasonably cost effective alternatives. If the facility is in substantial non-compliance with the terms and conditions of the NPDES permit or governing rules, regulations or laws, the permittee shall submit a report in such form and detail as required by the Divis,=):a evaluating these alternatives and a plan of action within sixty (60:1 days of notification hs t .: Division. PART RE« 0 AN CON AN R 'G ,. The must pay the annual administering and comp ce n nits ring 0 s after being billed by the Division. Failure to pay the fee ely er a may cause this Division to ° at actin to revoke die permi 300 Copies of t i public docunent were pr ntedt a st of 33 or $.28 each. 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 HEIDI PASSALES Amoco Corporation 375 NORTHRIDGE RD, #600 ATLANTA, GA 30350 Dear Permittee: January 7, 2000 ATA, NCDENR NORTH CAROLINA DEPARTMENT OF ENVIRONMENT AND NATURAL RESOURc ES ViRC)-IN HT. JAN 1 9 2000 Subject: Renewal of 286 Amoco Station #57 MECKLENBURG County The subject permit expires on. August 31, 2000. North Carolina Administrative Code (I5A NCAC 2H.0105(e)) requires that an application for pei mit renewal be filed at least 180 days prior to expiration of the current permit. To satisfy this requirement, your renewal package must be sent to the Division postmarked no later than March 4, 2000. Failure to request renewal of the pe:miit by this date will result in a civil assessment of at least $250.00. Larger penalties may be assessed depending upon the delinquency of the request. If any wastewater discharge will occur after August 31, 2000 (or if continuation of the permit is desired). the current permit must be renewed. Operation of wastewater treatment works or continuation of discharge after August 31, 2000 would violate North Carolina General Statute :143-215.1 and could result in assessment of civil penalties of up to 825,000 per day. If all wastewater discharge has ceased at your facility and you wish to rescind this pemiit. contact Robert Fain er of the Division's Compliance Enforcement Unit at (919) 733-5..083, extension 531. You May also contact the Mooresville Regional Office at (704) 663-1..699 to begin the rescission process. Use the enclosed checklist to complete your renewal package. The checklist identifies the items you must submit with the permit renewal application. If you have any questions, please contact me. My telephone number, fax number and email address are listed at the bottom of this page. cc: Central Files Mooresville Reti NPDES File t3r tion C Sincerely, Charles H. Weaver, Jr. NPDES Unit 1617 Mail Service Center, Raleigh, North, Carol ea 27699-1617 919 733-5083, extension 511 (lax) 919 733-0719 VISIT US ON THE INTERNET @ http://h2o_enr_slatemc,usiNPDES Charies.Weaver@ncrnatnel NPDES Permit NCO085286 Amoco Corporation MECKLINBURG County The following items are REQUIRED for all renewal packages: A cover letter requesting renewal of the permit and documenting any changes at the facility since issuance of the last permit. Submit one signed original and two copies. J The. completed application form (copy attached), signed by the perrnittee or an Authorized. Representative. Submit one signed original and two copies. If an Authorized Representative (see Part ILK 1 Lb of the existing NPDES permit) prepares the renewal package, written documentation must he provided showing the authority delegated to the .Authorized Representative. A narrative description of the sludge management plan for the facility. Describe how sludge (or other solids) generated during wastewater treatment are handled and disposed. If your facility has no such plan (or the permitted facility does not, generate any solids), explain this in writing. Submit one signed original and two copies.. J The following, items must be submitted ONLY by Industrial facilities discharging process wastewater: Industrial facilities classified as Primary Industries (see Appendix A to Title 40 of the Code of Federal Regulations, Part 1.22) rnu,st submit. a Priority Pollutant Analysis (PPA) in accordance with 40 CFR Part 122.21. If the PPA is not completed within one week of March 4, 2000, submit the application package without the PPA. Submit the PPA as soon as possible after March 4, 2000. The above requirement does NOT apply to municipal or non -industrial facilities. PLEASE NOTE: Due to a change in fees effective January 1, 1999, there is no renewal fee required with your application package. Send the completed renewal package to: Mr. Charles H. Weaver, Jr. NC DENR / Water Quality / NPDES Unit 1617 Mail Service Center Raleigh, NC 27699-1617 State of North Carolina Department of Environment, Health and Natural Resources Division of Environmental Management James B. Hunt, Jr., Governor Jonathan B. Howes, Secretary A. Preston Howard, Jr., P.E., Director February 19, 1996 Ms. Heidi Passales Amoco Corporation 375 Northridge Drive, #600 Atlanta, Georgia 30350 Subject: Permit No. NC0085286 Authorization to Construct Amoco Service Station #57 Mecklenburg County Dear Ms. Passales: A letter of request for an Authorization to Construct was received on September 5, 1995 by the Division and final plans and specifications for the subject project have been reviewed and found to be satisfactory. Authorization is hereby granted for the construction of a groundwater remediation facility with final discharge of treated wastewater into an unnamed tributary to McMullen Creek. The approved system consists of the following components: • 8 gpm oil/water separator • Six tray air stripper - CarbonAir Model STAT 30 or equivalent • HCA 15 GACA granular activated carbon canister with 400 pounds of carbon • Associated pumps, piping, and other appurtenances This Authorization to Construct is issued in accordance with Part III, Paragraph A of NPDES Permit No. NC0085286 issued February 19, 1996 and shall be subject to revocation unless the wastewater treatment facilities are constructed in accordance with the conditions and limitations specified in Permit No. NC0085286, The sludge generated from these treatment facilities must be disposed of in accordance with G.S. 143-215.1 and in a manner approved by the North Carolina Division of Environmental Management. In the event that the facilities fail to perform satisfactorily, including the creation of nuisance conditions, the Permittee shall take immediate corrective action, including those as may be required by this Division, such as the construction of additional or replacement wastewater treatment or disposal facilities. The Mooresville Regional Office, telephone number (704) 663-1699 shall be notified at least forty-eight (48) hours in advance of operation of the installed facilities so that an in -place inspection can be made. Such notification to the regional supervisor shall be made during the normal office hours from 8:00 a.m. until 5:00 p.m, on Monday through Friday, excluding State Holidays. PSD. Box 29535, Raleigh, North Carolina 27626-0535 Telephone 919-733-5083 FAX 919-733-0719 An Equal Opportunity. Affirmative Action Employer 50% recycled/ 10% post -consumer paper Permit No. NC0085286 STATE OF NORTH CAROLINA DEPARTMENT OF ENVIRONMENT, HEALTH, AND NATURAL RESOURCES DIVISION OF ENVIRONMENTAL MANAGEMENT PERMIT TO DISCHARGE WASTEWATER UNDER THE NATIONAL POLLUTANT DISCHARGE ELIMINATION SYSTE 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, Amoco Corporation is hereby authorized to discharge wastewater from a facility located at Amoco Service Station #57 4475 Randolph Road Charlotte Mecklenburg County to receiving waters designated as an unnamed tributary to McMullen Creek in the Catawba River Basin in accordance Nvith effluent limitations, monitoring requirements, and other conditions set forth in Parts 1, 11, and III hereof. The permit shall become effective This permit and the authorization to discharge shall expire at midnight on August 31, 2000. Signed this day VtANY A A. Preston Howard, Jr., P,E., Director Division of Environmental Managenient By /kuthority of the Environmental Mitnagernent Commission is he by aath . rir S PI IE LNI TO P R IT COVER SHEET Arnow Corporatio Permit NC0085286 After receiving an Authorization to Construct from the Division of Environmental Management, construct. treatment facilities located at Amoco Service Station #57 at 4475 Randolph Road, Charlotte, in Mecklenburg County as necessary to meet the limits of this permit for discharge of treated wastewater at outfa l 001; (see Pact III of this permit), and Discharg stewater from said treatment c)rks at the location specified on the attached map into an t nnamcd tribute Catawba Rigor Ilasi 4lttlltt `rock which is classified Class C waters in the, e'4o7G'v A. f IENtl" ItIMITATIONS AND MONEFORING REQIJIREMENTs FINAL Permit No NC(X)8526 During dic period beginning on the elMetive date of the permit and lasting until expiration, the Pemtinee is authorized to discharge from outiall serial number 001. Such discharges shall he linlited and monitored by the pertnitiee as specified below: Effluent Characteristics Discharge Limitations Monitoring_ Requirements Measurement Sample Sample MitatrithlY2 Avg. Polly Max* Enroluminyern Type LUSA* i o ri, I now 0i0144 MC„ID Continuous Recorder E Oil anti Grease Monthly Grab E Benzene Monthly Grab Toluene Monthly Grab E Naphthalene Monthly Grab E M'rBi-i] Monthly Grab E I fetid 25,0 tnilatil Monthly Grab E Foot notits: 1 Sample location: F Effluent 11 t1 SI fAltle BE NO DISCIIARGE OF FLOATING SOLOS OR FOAM IN OTHER THAN TRACE AMOUNTS., SOC PRIORITY PROJECT: Yes No X To: Permits and Engineering Unit Water Quality Section Attention: Jeanette Powell Date: November 9, 1995 NPDES STAFF REPORT AND RECOMMENDATION County: Mecklenburg MRO No.: 95-138 Permit No. NC0085286 PART I - GENERAL INFORMATION Facility and Address: Amoco Service Station #57 4475 Randolph Road Charlotte, N.C. 2. Date of Investigation: 11-1-95 3. Report Prepared By: Samar Bou-Ghazale, Env. Engineer I 4. Persons Contacted and Telephone Number: Mr. William Ferguson, Hydrogeologist with Handex of the Carolinas, Inc.; Tel# 704- 598-7900 5. Directions to Site: From the intersection of Hwy 16 and Sharon Amity Road in southern Mecklenburg County, travel North on Sharon Amity Road approximately 0.6 mile to the intersection with Randolph road. The site is located in the east quadrant of the intersection. 6. Discharge Point(s). List for all discharge points: Latitude: 35° 10' 34" Longitude: 80° 47' 54" Attach a U.S.G.S. map extract and indicate treatment facility site and discharge point on map. USGS Quad No.: G 15 NE USGS Quad Name: Charlotte East 7. Site size and expansion are consistent with application? Yes X No If No, explain: Topography (relationship to flood plain included): Sloping at the rate of 1 to 2%. The site is not located in a flood plain. 9. Location of nearest dwelling: Several houses and businesses are located within 200 feet of the site. 10. Receiving stream or affected surface waters: Unnamed' Tributary to McMullen Creek. a. Classification: C b. River Basin and Subbasin No.: Catawba River Basin c. Describe receiving stream features and pertinent downstream uses: Discharge will be into the city storm sewer. The storm outlet is located approximately 500 feet from the site and discharges into a dry ditch approximately 2000 feet prior to entering an unnamed tributary to McMullen Creek. The storm sewer system passes through a residential area prior to discharging into the unnamed tributary. Pertinent downstream uses are those typical for Class C Water (secondary recreation, agriculture, etc.) PART II - DESCRIPTION OF DISCHARGE AND TREATMENT WORKS 1. a. Volume of wastewater to be permitted: 0.0144 MGD (Ultimate Design Capacity) 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: N/A. f. Please provide a description of proposed wastewater treatment facilities: The proposed groundwater treatment system will consist of monitoring wells, recovery wells, an oil water separator, an air stripper, and carbon adsorption system. Possible toxic impacts to surface waters: Discharges of this nature have been shown to be toxic. g. h. Pretreatment Program (POTWs only): N/A. 2. Residuals handling and utilization/disposal scheme: Generation of residuals is not expected. NPDES Permit Staff Report Version 10/92 Page 2 been evaluated and found not to be viable alternatives due to limited space. However no written documentation has been .provided. above is recommended that the NPDES Permit be issued once the nentio ed concerns regarding toxicity have been addresseda er uality R-'.,onal Super' SPDES Permit Staff Report Version 0/92 77IH 1N1W1 State of North Carolina Department of Environment, Health and Natural Resources Division of Environmental Management James B. Hunt, Jr., Governor Jonathan B. Howes, Secretary A. Preston Howard, Jr., P.E., Director October 24, 1995 Ms, Heidi Passales Amoco Corporation 375 Northridge Drivel Atlanta,, Georgia '30350 Subject:: NPDES Permit Application NPDES Permit NC0085286 Amoco Service Station#57 Mecklenburg County Dear Ms. Passales; It has come to the attention of the Division that the groundwater contamination at the subject site contains diesel fuel constituents. Based upon these findings, the Division cannot issue a general permit for this facility. The submitted general permit application (previously application number NCG510289) has been changed to an individual permit application (application number NC0085286). The change in permit number does not affect the status of this application, or the ongoing staff review. Please note, however, that an individual permit may take up to 180 days from date of application receipt to issue. You will be advised of any comments,. recommendations, questions, or other information necessary for completion of the application review. If you have any questions regarding this application, please contact Jeanette Powell at (919) 733-5083, extension 537. Please reference the subject NPDES permit number in any correspondence with this office. id A. Goodrich, Supervisor PDES Permits Group cc. Mooresville Regional Office Permit File Handex of the Carolinas, Inc. P,©. Box 29535, Raleigh, North Carolina 27626-ty535 Telephone 919-733-7015 FAX 919-733-9919 An Equal Opportunity Affirmative Action Employer 50% recycled/ 10% post, -consumer paper ir estate of North Carolina Department of Environment, Health and Natural Resources Division of Environmental Management James B. Hunt, Jr., Governor Jonathan B. Howes, Secretary A. Preston Howard, Jr., P.E., Director September 22, 1995 Ms, Heidi Passales Amoco Corporation. 375 Northridge Drive, #600 Atlanta, Georgia 30350 Subject: NPDES Permit Application NPDES Permit NCG510289 Amoco Service Station #57 Mecklenburg County Dear Ms. Passales: This is to acknowledge receipt of the following documents on September 5, 1995: • NPDES Perrnit Application Form • Request for Permit and. Authorization to Construct • Corrective Action Plan • Application Fee of $400.00 • Authorization to Construct Fee of $150.00 A preliminary review of the submitted package has been performed. The following items} are needed before final review and permit issuance can be completed: Monitoring data for naphthalene and phenol are required under item 4.D. of the NCG510004 Notice of Intent form that was submitted. This data is necessary to determine the presence of diesel fuel constituents in groundwater remediation discharges, which are not currently eligible for coverage under a general permit, Final plans for the groundwater remediatian system must be submitted with a Professional Engineers signature and official seal affixed. The requested additional information must be received within 30 days of this notification. If this information is not received prior to this date, the application will be returned to you and may be resubmitted when complete. I am, by copy of this letter, requesting that our Regional Office Supervisor prepare a staff report and. recommendations regarding this discharge. You will be advised of any comments, recommendations, questions, or other information necessary for the application review. If you have any questions regarding this application, please contact Jeanette Powell at (919) 733-5083, extension 537. cc: Mooresville Regional Office Permit File Handex of the Carolinas, Inc. Sincerely, David A. Goodrich, Supervisor NPDES Permits Group P.o, Box 29535, Raleigh, North Carolina 27626-0535 Telephone 919-733-7015 FAX 919-733-9919 An Equal Opportunity Affirmative Action Employer 50% recycled/ 10©r'o post consumer paper D. !/2895 1(':13 ' j'7O4 598 2248 HANDEX/CAROLINAS AUG State of North Carolina. Department of Environment, Health and. Natural Resources Division of Environmental Management 512 North Salisbury Street • Raleigh, North Carolina 27611 Junes G. Martin. Governor William W. Cobey, Jr.. Sectary NOTICE_ ()FINITE NationaJ pllutant Discharge Elimination System Application for Coverage under General Permit NCG510000 Ground designed tea treat petroleum contaminated groundwater. 1. Narne, Address , location. and telephone number of facility reyuesti A. Official Name: B. Mailing Address: (1)Street Address; (2)City; (3)State; (4)Zip; (5)County; tion. (Attach map (1)Street Address; (2)City; (3)State; (4)County; Telephone Nunilaea Facility Contact A. Name; B. Title; C. Company Name; D. Phone Number, r4M0QI RPQR4 TI©N ATT : ,C I PASSALES 375 NORTHRIDGE FOALS, #604 A TL.ANTA Z,'E6HG/A 30350 ©i12 10:14AM A. Prey Howes Jr., P.E. Acting Director GWINNETT delineating general5 ANDOLPHIROAD Application type (check appro; A. New or Proposed; B. Existing; C. Modification; Describe the nature of the mod* tHARLQTTE NORTWROMI - MECKL F.NBURG HEIDI PASSALES REMEDIATION COORDINATOR AMOCO CORPORATION (404) 512 ., 6851 selection): 1f previously and issue date on 4. Description of discharge A. Please state the number of separate discharge points. 1,7;Z.II;3T1i4,Il;..._..l1. Page 1 /95 10:14 e704 598 2248 IIANDEVCAII CNAS �043 AUG 28 '9 10 15AM B. Please `be the amount of wastewater being discharged per each separate discharge point: MAX tat,, s'%allons per day (god) NIA (god) 3. N 4 (gpd) 4 . (gpd) C. Check the duration and frequency of the discharge, per each separate discharge point 1. ConsinuauS 2. intermittent (please desea N/A 3. Seasonal (check monthfs May Mgt t; July1; A 4. How many days per wee Monday Id, TuesdayXL Wednesday �, "I"hursday 5. How much of the volume discharged is treated? (st D. Describe the type of wastewater being discharged per separate discharge point. Specify what is being removed and products recovered. This includes a listing of any cheerio found in detectable amounts with the maximum observed concentration reported. The summary of analytical results containing this rnaucimum value should also be submitted (i.e. the listing, not the graphical scan). The most recent sample must be no older than one year previous to the date of this application. The following volatile organic compounds should be included along with any suspected fuel additive; 1. Benzene'*, 2. Toluene; 3. Ethylbenzene'; 4. Xylene*; 5. Lead; 6. Methyl tertbutylether 7. Dibromoethane (EDB); 8. 1,2-dichloroethane; 9. Isopropyl ether, 10. Naphthalene; 11. Phenol; An EPA approved method capable of detectlart levels to 1 ppb should be used to detect these compounds). s). E. Please check the appropriate type of treatment 1. OiUWater Separator.2 7. Air Stripper,, Diffused Aeration; Activated Carlson Absorption; X (specify);,.._ fr. a lately, please in dpa type of tree nt that was checked in 1 through . Include, s information on each type of treatment. Also pie the detected for the project, if known. Give dcs materials used in air stripper, etc.). Existing tree i newt f*dillies described in detail and design criteria or operational data should be provided( calculations) to ensure that the facility can comply with requirements of the General Permit. Please include model and calculations used in determining the design requirements ter the air stripper. 7. What are the well sizes and how many exist. 8. Please state the pump sizes and their location In relation to the treatment used in part " 9. Please explain what fail-safe measures, such as audible and visual alarms or automatic shutoff systems, are provided to ensure no system failures. 10. Is there an access to the effluent for sampling?( either an open pipe or a valve to obtain a sample) Page 2 /28/95 10:15 ' 704 598 2248 //lir and sped with sets /CM 0LINAS 9r14 AUG 2e '95 10: NOTE: Construction of any wastewater treatment fa tties require submission of th ree (3) of plans fications along with their application. Design of treatment facilities must comply requirement 15A NCAC 2H .0138. If construction applies to the discharge, include the of plans and specifications with the application. 5. What is the nature of the business applying for this permit, RETAIL GASOLINE STATION 6. Name of receiving water or waters; MCMULLEN CREEK C lastifiration: (Attach a USGS topographical map with all discharge poindsl clearly marked) 7. Is the discharge directly to the receiving ►water?(Y, ) NO If no, state specifically the discharge point. Mark clearly the pathway to the potential receiving waters on the site map. (This includes tracing the pathway of the storm sewer to its discharge point. if a storm sewer is the only viable means of discharge.) & Please address possible non -discharge alternatives for the following options: A. Connection to a Regional Sewer Collection System; CHA'RL©TTE-MEGKLENBURG COLLECTION SYST IS NOT ACCEPTING NEW i)ISCHARGES. B. Subsurface Disposal; NOT PRACTICAL DUE TO LOW PERMEAB/L/TY OF SUBSURFACE MATERIAL. C. Spray Irrigation; NOT FEASIBLE IN URBAN LOCATION. 9. I certify that I am familiar with the info rmoation contain ued ini the application and that to the best of my knowledge and belief such itdcr PrintedNamecrfIloziAtSign r NORTH CAROLINAGENERAL STA` Any person who knowingly maany application, record. report, plan or other document des or 21 or regulations of the Envirorntnental Management. Commission impletar nbng that Arrticle, or who tampers with or knowingly renders inaccurate any recording or monitoring d or method required to be operated or maintained under Article 21 or regulations of tl En ironm►ental Management Coon implementing that Article, shrill be guilty of a misdemeanor punishable by a fine not to exceed $10,tlCO3 or by imprisonment not to exceed six months, or by both. (18 U.S.0 Section 1001 provides a punislunent by a fine of not more than $10,000 or imprisonment not more than 5 years, or both, for a similar offense.) Notice of Intent must be accompanied by a check or money order for �t0 rn Carolina Department of Environment, Health, and Natural Resources. Mail package to: Division of Environmental Management NPDES Permits Group Post Office Box 29535 Raleigh, North Carolina 27626-0535 e Pi Page 3 andc!x October 13, 1995 Samar Bou-ghazale North Carolina Department of Environment, Health & Natural Resources 919 North Main Street Mooresville, NC 28115 RE: General NPDES Permit Application AMOCO Service Station # 57 4475 Randolph Road Charlotte, North Carolina Dear Mr. Bou-ghazale: uNviR07,4-0F,NT IT., Lin OCT 1 7 1995 gp°° qq amp g� Handex of the Carolinas, Inc. (Handex), on behalf of Amoco Corporation (Amoco), is pursuing an application for a General NPDES Permit for the above referenced site. A copy of the Corrective Action Plan (CAP) prepared for this site by Handex is enclosed for your review. If you should have any questions or comments regarding this matter, please contact our office at (704) 598-7900. Sincerely, Handex of The arolinas, Inc. William L. Ferguson Hydrogeologist 11 c. Heidi Passales - AMOCO 3600-G Woodpark Boulevard, Charlotte, North Carolina 28206 • (704) 598-7900 FAX (704) 598-2248 CORRECTIVE ACTION PLAN AMOCO SERVICE STATION #57 4475 RANDOLPH ROAD CHARLO 1 i E, NORTH CAROLINA INCIDENT #7208 Report Prepared For: AMOCO OIL COMPANY 375 NORTHRIDGE ROAD, #600 ATLANTA, GA 30350 Report Prepared By: HANDEX OF THE CAROLINAS, INC. 36009E WOODPARK BLVD. CHARLOTTE, NC 28206 (704) 598-7900 September 25, 1995 I. L. Fergu R, ,GIT Hydrogeolog`s John anion, P.G. Projec Manager :i' ATUR L )°"L OCT I 7 4 DIVISION OF ENVIRONMENTAL MANAGEMENT Certificatiof"for the 'Submittal of a Corrective Action Plan Under 15A NCAC 2L .0106(c) esponsible Party Address: City: Site Name: Address City: AM©CO: CORPORATION ATLANTA A1MOCO SERVICE STATION 57 4475 RANDOLPH ROAD cA Zip Code: 3e35° A R r.OT Unty: NC: de: Groundwater Section Incident Number: 72e8 1, JOHN F. SCANLON , P . G. , a Professional Engineer/Licensed Geologist (circle one) for HANDX OP 1'B ' CIA ROL INAS (firm or company of employment), do hereby certify that the information indicated below is enclosed as part of the required Corrective Action Plan (CAP) and that to the best of my knowledge the data, site assessments. engineering plans and other associated materials are correct and accurate. (Each item must be Initialed by hand by the certifying licensed professlonat). A listing of the names and addresses of those individuals required to be notified to meet the notification requirements of 15A NCAC 2L .0114(a) Is enclosed. Copies of letters and certified mail receipts are also enclosed. rofessional Engineer or Licensed Geologist has prepared, reviewed, and certified all applicable parts of the CAP in accordance with 15A NCAC 2L.0103(e). A site assessment is attached ter on file at the appropriate Regional Office which provides the information required by 15A NCAC 2L .0106(g)_ A description of the proposed corrective action and supporting justification is used, fic plans and engineering details are enclosed and propose the use of the best available technology for the restoration of groundwater quality to the levels of the groundwater standards prescribed in 15A NCAC 2L .0202. A schedule for the implementation and operation of the CAP is enclosed. (OVER) �71ev, 7/95 T Any ad enitrig pt is er cJe+�d the : • to a to t ve of the 3ty. a meu pi tr e, and ee%aute e 3 .Q11Q. suited in r i15A NCAC'0 n g nature) your submittal. TABLE OF CONTENTS ITEM PAGE 1.0 INTRODUCTION 1.1 BACKGROUND INFORMATION 1.2 SUMMARY OF PREVIOUS ASSESSMENT ACTIVITIES 1.3 SOIL QUALITY SUMMARY ..... . .. . ..... . ... . 1.4 SUMMARY OF SITE HYDROGEOLOGY ......... 1.5 GROUNDWATER ANALYTICAL DATA .......... . 1.6 SUMMARY OF ABATEMENT/REMEDIAL ACTIONS 2.0 OBJECTIVES OF THE CORRECTIVE ACTION PLAN 3.0 EXPOSURE ASSESSMENT .. 3.1 HISTORICAL ANALYTICAL DATA 3.2 PHYSICAL PROPERTIES .... . 3.3 CHEMICAL PROPERTIES .... . 3.4 TRANSPORT AND FATE 3.5 POTENTIAL RECEPTORS .3 .4 .4 .5 .6 .8 .8 8 11 11 13 4.0 REMEDIAL ACTION ALTERNATIVES EVALUATION 14 4.1 SOIL REMEDIAL ALTERNATIVES .. „ ....... , . • . • . • . • • • • • • • • . - • • • 15 4.1.1 Soil Excavation and Treatment 15 4.1.2 Soil Vapor Extraction 16 4.2 GROUNDWATER REMEDIAL ALTERNATIVES • . • ... - - 17 4.2.1 Natural Biodegradation/Attenuation ......................... 18 4.2.2 Air Sparging ..................................,...... 19 4.2.3 Pump -and -Treat ...... . ...... . ... . .............. . . . .... 20 4.3 REMEDIAL ENDPOINTS ......... - • . .............. . ..... • .... , 23 4.4 RECOMMENDED REMEDIAL ACTION ..... - .. • • ....... • .... • • . 24 4.5 TARGET START-UP AND COMPLETION DATES FOR CORRECTIVE ACTION 24 5.0 FIELD INVESTIGATIONS ....... • , 5.1 SOIL VAPOR EXTRACTION TEST ....... 5.2 VACUUM -ENHANCED AQUIFER TEST ...... 5.2.1 Aquifer Test Well Installation . , ....... . 5.2.2 Aquifer Test Procedure. ....... • . 5.2.3 Aquifer Test Results. 5.2.4 Vacuum -Enhanced Aquifer Test Procedure 5.2.5 Vacuum -Enhanced Aquifer Test Results . . 25 25 . 28 .28 .29 .29 . 30 . 31 ands) ITEM TABLE OF CONTENTS (continued) PAGE 6.0 REMEDIAL SYSTEMS DESIGN ..... . .... . . . 6.1 GROUNDWATER MODELING AND CAPTURE ZONE ANALYSIS 6.2 REQUIRED PERMITS.,........•.,.•.•....-•..--... 32 . 33 34 7.0 SOIL REMEDIATION SYSTEM ..............•.•.•.••...••...36 7.1 VAPOR WELL DESIGN ....................................... 36 7.2 VAPOR EXTRACTION PIPING DESIGN ....... . ....... • • . , ..... 36 7.3 SOIL VAPOR EXTRACTION BLOWER SELECTION............. , ... 37 8.0 GROUNDWATER RECOVERY SYSTEM 8.1 RECOVERY WELL DESIGN ,........ . 8.2 PIPING DESIGN 8.3 GROUNDWATER PUMP SELECTION 9.0 GROUNDWATER TREATMENT SYSTEM DESIGN ......... 9.1 OIL/WATER SEPARATOR 9.2 AIR STRIPPER .................................... 9.3 GRANULAR ACTIVATED CARBON ADSORPTION (GALA) 9.4 PRE-TREATMENT FOR IRON & BIOFOULING ............ • . 9.5 SYSTEM ENCLOSURE, CONTROLS & SAFETY MECHANISMS . 9.6 EFFLUENT DISPOSAL SYSTEM . s ..................... . 9.7 DISPOSAL OF RECOVERED LPH ......... . ...... . .... • . 10,0 OPERATION AND MAINTENANCE 10.1 RECOVERY SYSTEMS MONITORING 10.2 TREATMENT EQUIPMENT MONITORING 11.0 REMEDIATION PROGRESS MONITORING AND REPORTING 11.1 GAUGING OF MONITORING WELLS. ........ • .. . 11.2 WATER QUALITY SAMPLING OF MONITORING WELLS ..... 11.3 QUARTERLY REPORTING ..... , .. , x ....... • . • . 11.4 ANNUAL REPORT OF REMEDIATION PROGRESS 11.5 REMEDIAL ACTION COMPLETION ....... . ..... . 38 38 . 39 40 . 41 . 41 . 42 . 43 . 45 45 . 46 . 47 47 47 . 48 49 . 50 50 . 50 . 50 51 REFERENCES ..,........H...n............ 52 andm FIGURE 1 : FIGURE 2: FIGURE 3: FIGURE 4: FIGURE 5: FIGURE 6 : FIGURE 7: FIGURE 8: FIGURE 9 : FIGURE 10 : FIGURE 11 : FIGURE 12 : FIGURE 13 : FIGURES Site Location Map Site Vicinity Map Site Plan Geologic Cross Section A -A' Geologic Cross Section B-B' Water Table Contour Map Groundwater Benzene Concentration Map Groundwater Total BTEX Concentration Map Groundwater MTBE Concentration Map Proposed Treatment System Layout Recovery System Capture Zone Analysis Proposed Soil Vapor Extraction Influence Map Recovery System Schematic TABLES TABLE 1 : TABLE 2: APPENDIX A: APPENDIX B: APPENDIX C: APPENDIX D: APPENDIX E: APPENDIX F: APPENDIX G: APPENDIX H: APPENDIX I: APPENDIX J: APPENDIX K: APPENDIX L: Historical Analytical Data Physical Properties of Selected Fluids APPENDICES Gauging Data and Hydraulic Gradient Calculations Groundwater Laboratory Data (May 2, August 7, August 14, 1995) Soil Disposal Certificate SVE Test: Field Data, Calculations, and Air Sample Data Aquifer Test Data Groundwater Modeling Parameters Soil Vapor Extraction Blower Specifications Groundwater Pump and Air Compressor Specifications Oil/Water Separator Specifications Worst Case Influent Concentration and Air Stripper Specifications GACA Unit Particulate Filter Specifications and 1.0 INTRODUCTION In accordance with the authorization of Amoco Corporation (Amoco), Handex of the Carolinas, Inc. (Handex) has prepared this Corrective Action Plan (CAP) for Amoco Service Station # 57 (Site), located at 4475 Randolph Road, in Charlotte, Mecklenburg County, North Carolina. The CAP was prepared in general accordance with Title 15A, Subchapter 2L, of the North Carolina Administrative Code (15A NCAC 2L). 1.1 BACKGROUND INFORMATION The site is located at the northeast intersection of Randolph Road and Sharon Amity Road in Charlotte, North Carolina. A topographic map of the site area, reproduced from the United States Geological Survey (USGS) 7.5 minute series Charlotte East, North Carolina quadrangle, is presented as Figure 1. Land use surrounding the site is primarily commercial with office buildings, other retail gas stations, fast food restaurants, and a strip mall. All four corners at the intersection of Randolph Road and Sharon Amity Road are presently or were previously occupied by operating gasoline service stations, and a former service station bordered the site to the north. Figure 2 is a map of the surrounding area, and Figure 3 is a site plan. Amoco's records show that he site was purchased by Amoco in June of 1960. On February 4, 1992, a Notice of Violation (NOV) was issued by the North Carolina ndc: Department of Environment, Health, and Natural Resources (NCDEHNR), Division of Environmental Management (DEM) for Amoco Service Station # 57. The NOV was issued due to the reported presence of liquid phase petroleum hydrocarbons (LPH) in two of the three on -site tank field observation wells (MW-1 and MW-3). Amoco retained Law Environmental to complete an Initial Site Characterization (ISC) Report and initiate a LPH removal program as required by the NOV. Inventory control records indicated a loss of gasoline from the regular unleaded gasoline underground storage tank (UST). On March 5, 1992, a tank tightness test was performed on the regular unleaded UST. The result of this test determined the UST system to be "tight". Therefore, the quantity and source of the LPH release remains unknown (Law Environmental, March 27, 1992). The underground storage tanks have since been removed and replaced. The ISC Report was submitted on March 27, 1992, and the LPH removal program was discontinued on March 11, 1992 after gauging of the tank field observation wells showed no detection of LPH. As of March 11, 1992, 0.5 gallons of LPH had been recovered. During a gauging event in May 1994, LPH was detected in MW-1, MW-3, and MW-9. LPH recovery by hand -bailing was initiated. Approximately 37 ounces of LPH have been recovered by hand -bailing since May 1994. 2 anda 1.2 SUMMARY OF PREVIOUS ASSESSMENT ACTIVITIES On February 4, 1992, a Notice of Regulatory Requirement (NORR) was issued by the NCDEHNR-DEM. The NORR required a complete assessment of the horizontal and vertical extent of hydrocarbons in soil and groundwater at the site. Law Environmental completed an ISC Report in March 1992. Handex completed a Preliminary Site Assessment (PSA) that was submitted to the DEM on June 10, 1992, and a Comprehensive Site Assessment (CSA) report that was submitted to the DEM on June 22, 1994. During the assessment activities performed at the site by Handex and others, six Type II monitoring wells (MWs 4, 5, 6, 7, 9 and 10) and two Type III monitoring wells (MW-8D and MW-11 D) were installed during the period from March 1992 to August 1993. MW-1 through MW-3 were already existing at the site prior to beginning assessment activities. Petroleum hydrocarbons have been detected in groundwater samples from each of the wells, with the highest levels of dissolved hydrocarbons in the area surrounding the UST field. Levels of petroleum hydrocarbons exceeding NCAC 2L Standards were detected in MW- SD at a depth of 45 feet below land surface (BLS). Petroleum hydrocarbons were also detected in MW-11 D at a depth of 60 feet BLS. However, only benzene was detected in this monitoring well at a level above the NCAC 2L Standards of 1 microgram per liter (jag/1).. C1ndc 1.3 SOIL QUALITY SUMMARY The soil quality at the site was assessed in the PSA and CSA. The soil analytical data and the depth of sample collection are summarized on the geologic cross sections (Figures 4 and 5). Additionally, soil samples were collected during the excavation and removal of the USTs during May 1995. This data was submitted with the UST Closure Report, dated July 5, 1995, and prepared by CBM Environmental. During the removal of the USTs in May 1995, approximately 925 cubic yards of petroleum impacted soils were removed from the site by CBM Environmental. The soils were transported to the Cherokee Environmental Brick facility in Norwood, North Carolina, for disposal. Soil samples collected from beneath the USTs by CBM Environmental contained levels of total petroleum hydrocarbons (TPH) ranging from 180 mg/kg (milligrams per kilogram) to 45,000 mg/kg. During the UST removal, visual and olfactory evidence of petroleum impacted soils were observed below the building and one of the pump islands. However, concern of structural damage to the building and other property prevented further soil excavation. 1.4 SUMMARY OF SITE HYDROGEOLOGY The depth to water was gauged in the eleven monitoring wells on May 2, 1995. The monitoring well gauging data was used to estimate water table elevations, which were then used to prepare the relative water table contour map presented as Figure 6. This contour map shows the direction of groundwater flow across the site is generally toward 4 ande the west-southwest. Based on the May 2, 1995, measurements, the depth to groundwater across the site ranges from approximately 11.23 to 14.90 feet BLS. Referring to Figure 6, the hydraulic gradient was estimated to be 0.016 feet/feet across the site. The well gauge report and the hydraulic gradient calculations are presented as Appendix A. 1.5 RECENT GROUNDWATER ANALYTICAL DATA Groundwater samples were collected from the site monitoring wells on May 2, 1995. The groundwater samples were analyzed for BTEX (benzene, ethylbenzene, toluene, and xylenes) and MTBE (methyl -tertiary -butyl ether) sing the United States Environmental Protection Agency (EPA) Test Method 602. The analytical results for the most recent sampling events are presented in Table 1. Three previous sampling events occurring in 1992, 1993, and 1994 are also included in Table 1. Additional groundwater samples were collected on August 7, 1995, and August 14, 1995, for analysis of polynuclear aromatic hydrocarbons (PAHs) and lead, respectively. According to laboratory data from the sampling event performed on May 2, 1995, levels of benzene ranged from 9.9 micrograms per liter (pg/1) in monitoring well MW-2 to 14,900 pg/I in monitoring well MW-9. Total BTEX (benzene, toluene, ethylbenzene, and xylenes) anda concentrations ranged from 15.9 pg/I in monitoring well MW-2 to 50,200 pg/I in monitoring well MW-9. Concentrations of methyl -tertiary -butyl ether (MTBE) ranged from 214 pg/I in MW-11D to 31,800 pg/I in MW-9. A groundwater benzene concentration map, groundwater total BTEX concentration map, and a groundwater MTBE concentration map, utilizing the May 2, 1995, data, have been included as Figures 7, 8, and 9, respectively. The laboratory analytical reports for the most recent sampling events (May and August 1995) are included as Appendix B. 1.6 SUMMARY OF ABATEMENT/REMEDIAL ACTIONS According to the ISC report prepared by Law, LPH was detected in tank field observation wells MW-1 and MW-3 in December 1991. A LPH bailing program was initiated by Law Engineering at this site to recover the LPH and was discontinued in March 1992 after LPH was no longer observed in the monitoring wells. In May 1994, LPH was detected in MW-1 and MW-3 and for the first time in MW-9. Handex has performed hand bailing of LPH in monitoring wells MW-1, MW-3, and MW-9 an an as needed basis since May 1994. In November 1994, an absorbent wick was :laced in MW-9 to remove LPH from the groundwater. In February 1995, Amoco contracted ECOVA to perform Enhanced Fluid Recovery (EFR) on MW-1, MW-3, and MW- 9 to remove LPH from the subsurface. No LPH has been detected in subsequent 6 anda: monthly gauging events. It should be noted that monitoring wells MW-1 through MW-3 were destroyed during the UST removal in May 1995. In May 1995, Amoco removed and replaced the three existing gasoline and one diesel USTs. A new UST system was installed in the same location of the former USTs. During the removal, approximately 925 cubic yards of petroleum -impacted soils were removed from the UST tank field area. The excavated soils were transported to the Cherokee Environmental Norwood, North Carolina Brick Facility for disposal. A Certificate of Disposal is included as Appendix C. 2.0 OBJECTIVES OF THE CORRECTIVE ACTION PLAN The primary objective of the CAP is to detail a plan to reduce levels of hydrocarbons in soils and groundwater at the Amoco site, in accordance with Title 15A, Subchapter 21_, of the North Carolina Administrative Code (15A NCAC 2L). Final clean-up levels for petroleum -impacted groundwater at this site could include application to the NCDEHNR for alternate groundwater clean-up levels as allowed by Rule 0.0106( ) of the Amended 2L Groundwater Regulations, or a variance from existing 2L Groundwater Standards as allowed by Rule 0.0106(m) 7 The remedial system proposed in this report is designed to address hydrocarbon- impacted soil and groundwater associated with activities at the Amoco site and does not propose to remediate petroleum -impacted soil and groundwater resulting from discharges from any neighboring sites, if any. 3.0 EXPOSURE ASSESS I Ef IT 3.1 HISTORICAL ANALYTICAL DATA The results of the most recent (May 1995) groundwater chemical analyses are summarized in Table 1. Historical groundwater chemical analytical data, reproduced from the Handex PSA and GSA reports are also included in i aole 1. 3.2 PHYSICAL PROPERTIES The physical and chemical characteristics of a petroleum product contribute to the behavior of the substance in the subsurface and may vary depending on such factors as the refining process and conditions of special use (climate, geography). Critical properties of refined petroleum fuel products are fluid density and dynamic viscosity. Fluid density and dynamic viscosity can affect the mobility of liquid phase hydrocarbons. Fluid density is the mass per unit volume. Table 2 lists the densities of selected hydrocarbon fuels. Most petroleum fuel hydrocarbons have a density less than that of water (1 gram per milliliter (g/mI)). This density contrast indicates that a bulk refined petroleum fuel product will float on the groundwater surface (NWWA, 1989). and Dynamic viscosity is a measure of resistance of fluid to flow. The dynamic viscosity of selected hydrocarbon fluids are also presented in Table 2. In general, as the density increases, the viscosity of a petroleum product increases, and the ability of the product to move through the subsurface decreases. Densities and viscosities tend to decrease in most hydrocarbons with increasing temperature. Of the other physical properties of a bulk refined petroleum fuel product, solubility and volatility are most important. The volatility of a refined petroleum fuel product is directly related to the vapor pressure (VP) of the individual components of the fuel mixture, as illustrated by the following equation: VP, =MVP;. Typical vapor pressures for various petroleum fuel products are summarized in Table 2 (NWWA, 1989). The solubility of a petroleum fuel will give some indication of the potential for that fuel to partition into the dissolved phase in groundwater. The solubility of a petroleum fuel is not equal to the sum of the solubilities of the individual components of the fuel. The solubility of a petroleum fuel is much lower than the solubility of some of its components. The most soluble compounds in petroleum fuels are the lighter aromatic hydrocarbons. The presence of hydrophilic additives such as MTBE, IPE, and ethanol can enhance the solubility of a refined fuel product. The solubilities for selected petroleum fuel products are included in Table 2. C1nda: Refined petroleum fuels can be present in the subsurface in liquid, dissolved, or vapor phases, or in combinations of these phases. The phase is determined by the degree of hydrocarbon saturation in the soil void spaces and by the wetting characteristics of the subsurface materials. Liquid phase hydrocarbons can exist in the subsurface in the following forms: a. Immobile residual liquids in the unsaturated zone and capillary fringe. b. Mobile residual liquids that migrate near the top of the capillary fringe. c. Immobile residual liquids trapped in the saturated zone. Dissolved phase hydrocarbons can exist in the following subsurface areas: a. In infiltrating water in the unsaturated zone. b. in the residual films of groundwater covering the surfaces of solid minerals in the capi'l.ary fringe and separate phase hydrocarbon zones. c. In groundwater within the saturated zone. Vapor phase hydrocarbons in the subsurface can exist in two areas: a. In void spaces in the unsaturated zone not occupied by water or separate phase hydrocarbons and is considered mobile. b. As small bubbles trapped in either the separate phase hydrocarbons or the underlying water -bearing zone. The bubbles are relatively immobile, but may dissolve in the groundwater or may be released into the soil air. 10 tindcz 3.3 CHEMICAL PROPERTIES Refined petroleum fuels are a complex mixture composed mainly of aliphatic and aromatic compounds; these two groups are often collectively referred to as hydrocarbons. Aliphatic compounds are orga c compounds in which the carbon atoms exist in as either straight or branched chains. The principal aliphatic compounds present in fuels are single -bond paraffins (alkanes); examples include pentane, hexane, and octane. Aromatic compounds contain carbon molecular ring structures and include compounds such as benzene, toluene, and ethylbenzene. These compounds are somewhat soluble, volatile, and mobile in the subsurface environment and are useful indicators of hydrocarbon migration (API Publication 1628, 1989). Gasoline contains the highest volume of aromatic compounds. Diesel fuel, kerosene, jet fuel, and No. 2 fuel oil have much lower quantities of aromatic compounds. Oxygenated compounds (oxygenates) such as alcohols (methanol) and ethers (methyl tertiary -butyl ether) are often used as octane enhancers in gasoline. These compounds are the most soluble components of a petroleum fuel, being present in some fuels in concentrations as high as 15 percent by volume. 3.4 TRANSPORT AND FATE The partitioning behavior of a bulk fluid influences the transport and fate of the substance in the subsurface. As discussed earlier, petroleum hydrocarbons typically exist in either the liquid, dissolved, or vapor phase. The extent to which the bulk fluid partitions into the 11 nde various phases is controlled by the physical and chemical properties of the substance and by environmental conditions. Partitioning between phases is influenced by soil structure, soil texture, soil organic -carbon content, soil and groundwater temperature, and the presence of co -solvents in the dissolved phase. In the unsaturated (vadose) zone, the migration of hydrocarbons in the liquid phase is controlled by the permeability of the soils, viscosity of the fluid, and soil misture content. Gravity forces the bulk fluid to migrate predominately downward. Capillary potential induces vertical and lateral components to migration. A considerable portion of the total volume of fluid may remain in the soil column, trapped by capillary forces (Tracy, 1989). The vapor phase of fuel mixture is primarily limited to the vadose zone. Migration of the vapor phase results from volatilization of the aromatic hydrocarbons from both the liquid and dissolved phases. Due to upward vapor pressure gradients and diffusion, vapor phase migration is primarily upward in a homogeneous matrix. The concentrations of dissolved hydrocarbon compounds in water and the rates of transfer from liquid phase to the groundwater system depend on several factors interacting in a complex manner. These factors include depth to the water table, hydraulic conductivity of the saturated zone, recharge rates, fluctuations in the water table, groundwater velocities, water temperature, and residual hydrocarbon concentrations. cindc Once the hydrocarbons have entered the dissolved phase, the processes of advection and hydrodynamic dispersion control their movement. Advection is the transportation of chemical constituents by groundwater movement and is therefore dependent on the hydraulic conductivity of the saturated zone. Hydrodynamic dispersion is the spread of a chemical constituent in directions other than those that would be expected from groundwater movement only, and is caused by mechanical mixing of constituents during advection and chemical diffusion. Dispersion through chemical diffusion is often minimal and occurs principally in groundwater systems with very low hydraulic conductivities and flow velocities. The effect of hydrodynamic dispersion is to dilute the chemical concentrations within the area of dissolved hydrocarbons. In addition to dispersion and diffusion, other subsurface processes can attenuate and degrade hydrocarbon compounds over time. These processes may include volatilization, absorption, adsorption, abiotic (inorganic) transformations, and biotic (organic) transformations. 3.5 POTENTIAL RECEPTORS The primary routes of exposure to petroleum hydrocarbons are ingestion, dermal contact, and inhalation. Since the hydrocarbons at this site are contained in soil and groundwater, the possibility of dermal contact is minimal. Given the depth to groundwater and the tight 13 anda: soils at the site, the chance of inhalation of vapors appears to be minimal. Ingestion of groundwater is a remote possibility as drinking water is supplied to the area by the City of Charlotte. Based on the average depth to groundwatercross the site (13.30 ft), interception of utility trenches or basements by hydrocarbon -impacted groundwater is not likely. The clayey nature of the unsaturated subsurface should or may significantly retard and attenuate (by adsorption) any vapor migration originating from dissolved phase hydrocarbons in groundwater. The area surrounding the site is largely commercial with water supplied to the area from the City of Charlotte. In a 1Fd reconnaissance, survey conducted by Law Environmental (Initial Site Characterization Report, Law Environmental, 1992), no potable wells were observed within a 1500-foct radius of the site. No surface water intakes (i.e., rivers, streams, etc.) were identified within a 1500-foot radius of the site. 4.0 REMEDIAL ACTION ALTERNATIVES EVALUATION The following criteria were considered in evaluating the remedial action alternatives for the site: • Regulatory framework and remediation goals • Risk to potential receptors • Physical site constraints • Groundwater and soil concentrations and distribution -kincie • Implementability and operation and maintenance • Reliability and feasibility of each remedial method • Initial cost and long term costs These criteria were used in evaluating several groundwater and soil treatment alternatives, including: soil excavation and thermal treatment, natural biodegradation/attenuation, air sparging, pump -and -treat systems, and soil vapor extraction. Other factors considered in the evaluation were the horizontal and vertical extent of hydrocarbons, concentrations of hydrocarbons in groundwater and soil, appropriate soil and water quality goals, physical site constraints, and the cost effectiveness of each remedial method. 4.1 SOIL REMEDIAL ALTERNATIVES In evaluating soil remedial alternatives, several remediation technologies were considered, including excavation and treatment and in -situ :achnologies such as soil vapor extraction (SVE). 4.1.1 Soil Excavation and Treatment The conceptual design for this remediation method involves the physical excavation of hydrocarbon -impacted soil. Treatment may be accomplished either by land -farming or by thermal treatment. Soil excavation has the advantage of removing hydrocarbon - impacted soils which could act as a future source of LPH, if any, and dissolved hydrocarbons as water percolates through the impacted soil column. During the removal of USTs in May 1995, approximately 925 cubic yards of petroleum - impacted soils were removed from the site by CBM Environmental. The size of the 15 excavation was approximately 30 feet wide by 60 feet long by 14 feet deep. The approximate depth to groundwater in the UST area has historically ranged from 10 to 15 feet BLS. The soils were transported to the Cherokee Environmental Facility in Norwood, North Carolina, for disposal. Visual and olfactory evidence of petroleum -impacted soils was observed below the site building and one of the pump islands. However, concern over structural damage to the building on the property prevented further soil excavation. Based on the physical constraints, further soil excavation and removal is not considered to be feasible or the most cost effective remedial option for petroleum -impacted soils at this site. Approximate Estimated Costs: Soil Removal and Treatment $50,000 + 4.1.2 Soil Vapor Extraction This technology involves removing volatile organic compounds (VOC) from the subsurface using forced or drawn air currents. The conceptual design for this system consists of inducing a forced vacuum on the soil column and removing the hydrocarbon -air mixture to the atmosphere. This is accomplished using a regenerative or rotary lobe blower which is connected to one or more vapor extraction or pumping wells. Soil vapor extraction often enhances total hydrocarbon recovery from the saturated zone by providing the additional energy required to overcome the surface tension of hydrocarbons adsorbed onto soil particles. Furthermore, by drawing or injecting oxygen (air) into the impacted soil column, natural biodegradation by aerobic bacteria can also be enhanced. anda Implementation of this type of system begins with feasibility testing to assess areal influences (soil -to -air permeability), potential off -gas treatment needs, and effects on air quality in the area. Once testing is complete, the final design is prepared. Following approval of the design, permitting and construction can begin. At this site, permitting of the hydrocarbon emissions source with the Mecklenburg County Department of Environmental Protection (MCDEP) will be required. Depending on the results of air emissions testing, air abatement for the soil vapor extraction system may be required. The site has a average water table depth of approximately 13 feet BLS, which should be sufficient for the SVE to remediate vadose zone soils. However, if SVE is used in association with groundwater pump -and -treat, SVE can be a more effective method for soil remediation. Based cn the extent of hydrocarbons identified in the vadose zone, hydrocarbon concentrations, depth to water table, low operation and maintenance costs, SVE is considered to be a feasible and cost effective option for soil remediation at this site. Approximate Average Costs: Initial Installation and Start-up $ 10,000 - $60 000 Annual Cost: $ 10,000 - $20,000 4.2 GROUNDWATER REMEDIAL ALTERNATIVES Remedial options for petroleum -impacted groundwater at the site included air sparging, groundwater withdrawal and treatment techniques, and natural bioattenuation and. biodegradation.. 17 Cindc 4.2.1 Natural Biodegradation/Attenuation Natural biodegradation and attenuation of petroleum hydrocarbons in groundwater is possibly already occurring at the site. This method of remediation relies on micro- organisms to aerobically break down petroleum hydrocarbons. The conceptual design for this type of remedial plan involves regular monitoring and sampling of the site. Monitoring would include gauging of the monitoring wells, removal of LPH by bailing or skimming (if necessary), and groundwater sampling and analysis. The information gained from this additional monitoring and sampling can be used to determine the extent of migration and natural attenuation of dissolved phase hydrocarbons in the subsurface. To evaluate vapor and residual phase hydrocarbons, soil borings may be performed at some time interval. The factors which will limit the effectiveness of natural biodegradation are the concentration and availability of oxygen in soil and dissolved in groundwater. If dissolved oxygen (DO) levels in groundwater at the site are sufficient, natural biodegradation will continue unabated until the dissolved hydrocarbons are consumed. Natural biodegradation will not be effective at quickly remediating LPH or high dissolved phase hydrocarbon concentrations_ . Additionally,natural biodegradation will not be suitable where there are continuing sources of contaminants such as LPH, petroleum 1 8 0 cinder -impacted unsaturated soils, or high dissolved phase hydrocarbon concentrations. Based on these factors and site specific conditions, natural bioattenuation/degradation may not be considered as a primary remedial option at this site. Approximate Average Costs: Initial Installation and Start-up $ 5,000 $10,000 Annual Cost: $ 5,000 - $15,000 4.2.2 Air Sparging Air sparging (AS) is a process for enhancing desorption, volatilization, and bibremediation of VOCs present in groundwater and sail, Clean air is injected under pressure into the saturated zone at a point below the vertical extent of hydrocarbons. The injected air disperses horizontally and vertically through the saturated zone and "strips" dissolved VOCs from the groundwater. The air sparging process can also enhance naturally - occurring aerobic biodegradation of VOCs by increasing oxygen distribution and dissolution into the groundwater. Soil vapor extraction is typically utilized in conjunction with air sparging to capture and remove vapor phase hydrocarbons from the subsurface. SVE captures vapors which have migrated to the vadose zone as a result of the air sparging process and volatilizes and removes residual LPH within the vadose zone, In addition, SVE can enhance the biodegradation of hydrocarbons in the unsaturated zone through the introduction of air into the subsurface. 19 ande Implementation of this type of system begins with feasibility testing to valuate system performance, potential off -gas treatment needs, and appropriate air injection and extraction rates. This information would then be utilized for the design of a spargingiventing system. Following approval of the design, construction can begin after all permits are received. The time frame for feasibility testing is approximately four to six weeks. Permit approval time frames may vary depending on he type(s) of permitting required. At present, this option was not considered to be the most effective since downgradient capture of the dissolved hydrocarbon plume is desired and —may not be achieved with air sparging. However, air sparging could be utilized in the future when dissolved hydrocarbon concentrations have decreased. Approximate Average Costs: Initial Installation and Start-up $ 20,000 - 30,000 Annual Cost: $ 20,000 - 30,000 4.2.3 Pump -and -Treat Groundwater withdrawal and treatment is an effective and widely accepted technology for remediating groundwater. The conceptual design of this type of system involves pumping groundwater from designated recovery wells to a containment and treatment plant. A purnp-and-treat system can lower the water table and provide hydraulic capture of the dissolved and liquid phase hydrocarbon plumes. This local gradient can also capture LPH and cause it to migrate into the recovery wells for removal with a skimmer pump, a total fluids pump, an absorbent wick, or by mereal bailing. 20 cindc: 0 owing pumping methods for groundwater extraction were considered: • Total Fluids Pumping - This type of pumping is designed to recover both groundwater and LPH using a single pump. Pump selection is based on the depth to fluids in the subsurface, the desired flow rate, and the desired area of influence. Electric submersible pumps are generally capable of higher flow rates than pneumatic pumps, but are not as well suited for sites with appreciable thicknesses of LPH. Pneumatic pumps are preferable to minimize emulsification of the LPH such that oil/water separation can be achieved more effioie.ntly. Dual Phase Pumping -- Dual phase pumping involves using two pumps within one recovery well, one pump to recover groundwater and a second pump to recover LPH. The lower pump of a dual pump system is used to lower the water table to recover dissolved hydrocarbons and create a cone of depression to induce LPH flow into the recovery well. The upper pump is then used only to recover the LPH that enters the well. Vacuum -Enhanced Total Fluids Extraction - Pumping of groundwater or total fluids can often be enhanced by applying a vacuum to the subsurface at the point of fluid removal. Vapor extraction and pumping augment each other in that the application of negative pressure effectively creates a stronger hydraulic gradient toward the recovery point and accelerates groundwater flow toward the extraction point. This in turn increases the recovery rate and recovery well yield. In addition, pumping groundwater or total fluids draws down the water table and exposes soils that may also be impacted. This allows for recovery of residual and vapor phase hydrocarbons from the soils via the soil vapor extraction system. Effective treatment of pumped groundwater may be accomplished by air stripping, bioreactors, or by granular activated carbon adsorption (GALA). Air stripping involves blowing air countercurrent to a stream of water in a packed tower or specially designed tray or aeration tank, effecting a hydrocarbon phase transfer from the dissolved to the vapor phase. Bioreactors use hydrocarbon -consuming bacteria to treat groundwater. 21 cindc In carbon adsorption, hydrocarbon -impacted water is passed through a vessel containing granular activated carbon, where hydrocarbons are adsorbed into the pores of the carbon. Several options for the disposal of treated groundwater are available, including discharge to a sanitary sewer system, discharge to a storm sewer system, re -infiltration using injection wells, and re -infiltration using an infiltration gallery. Injection of treated groundwater through an injection well, or series of wells, was not selected due to costs, maintenance problems, regulatory concerns, and the low hydraulic conductivity of the native soils at the site. Re -infiltration using an infiltration gallery is not feasibleat this site due to the low permeability of the surficial aquifer and the size of the gallery required. Discharge to a sanitary sewer at this site is possible, as a publicly -owned treatment works (POTW) is available at the site. To explore this option, Handex has contacted the Charlotte -Mecklenburg Utility Department System Protection Division (CMUD-SPD) regarding a permit to discharge the treated groundwater through a sanitary sewer at other sites. However, CMUD-SPD currently has a moratorium denying ail discharge permits for groundwater remediation systems. Therefore, discharge of the water through a storm sewersystem under a General National Pollutant Discharge Elimination System (NPDES) permit would be a feasible discharge alternative for this site. 22 anda: Implementation of a pump -and -treat system begins with feasibility testing to evaluate system performance, potential groundwater and off -gas treatment needs, and appropriate pumping rates. This information would then be utilized for the design of a final remediation system. Following approval of the design, construction can begin after all permits are received. Feasibility testing has already been performed and is discussed in later sections. Permit approval time frarries will vary depending on the type(s) of pertting required. Approx. Average Costs: Initial Installation & Start-up $ 75,000 - 100,000 Annual Cost: $ 35,000 - 45,000 4.3 REMEDIAL ENDPOINTS The following section summarizes the e3;ir ated length of time needed for each technology reviewed to accomplish the appropriate remediation goals for the four phases of hydrocarbons present in the subsurface at this site. These estimates are based on soil types, aquifer parameters, and concentrations of hydrocarbons in soil and groundwater, as well as experience at similar sites. Remedial Endpoints (all times approximate): Liquid Phase Hydrocarbons Soil Vapor Extraction/manual removal 1 /8 inch - 1 year Dissolved Phase Hydrocarbons - Groundwater Passive Bioremediation Pump -and -Treat Pump -and Treat w/ SVE Air Sparging w/ SVE Declining/Asympt©tic - > 25 years Declining/Asymptotic - 4 - 6 years Declining/Asymptotic - 3 - 5 years Declining/Asymptotic - 2 - 6 years Residual Phase Hydrocarbons - Soils Soil Vapor Extraction Pump -and -Treat w/ SVE Air Sparging w/ SVE Vapor Phase Hydrocarbons - Soils Soil Vapor Extraction Pump -and -Treat w/ SVE Air Sparging w/ SVE <10 ppm 3 - 5 years <10 ppm 3 - 5 years < 10 ppm 3 - 5 years <10 ppm 3 - 5 years <10 ppm 3 - 5 years <10 ppm 3 - 5 years 4.4 RECOMMENDED REMEDIAL ACTION Based on the available technologies and site specific conditions, the preferred soil and groundwater remediation method is groundwater recovery and treatment with concurrent soil vapor extraction. These technologies should be able to provide hfdraulic control of the dissolved phase hydrocarbon plume on -site and reduce levels of hydrocarbon- impacted soiI and groundwater 4.5 TARGET START-UP AND COMPLETION DATES FOR CORRECTIVE ACTION The following are target dates for document submittal, system construction, system start- up, and project completion. ACTIVITY Corrective Action Plan Final System Design TARGET CO'1PLE'ION DATE September 1, 1995 Four weeks following approval of CAP by NCDEM. System Construction Two to three months from CAP approval and receipt of necessary permits. 24 e Activation Project Completion Three to four months from CAP approval and/or receipt of necessary permits and upon final inspection approval by state/local agencies. Two to three years from system activation. Our ability to achieve the target dates •ri?I be depend t, in part, upon regulatory review, permitting and subcontractor scheduling. The project completion date is a general estimate only and wil! be dependent on site conditions and the effectiveness of the proposed remedial Final clean-up goals and project completion y be determined through negotiations with : °te NCDEHNR. 5.0 FIELD INVESTIGATIONS Field investigations to evaluate the feasibility and effectiveness of the proposed remedial technolooEes were performed on November 30, 1994, and June 8, 1995. Field investigations completed to prepare the CAP included a 2-hour soil vapor extraction test, and a 6.5-hour aquifer test, followed by a 4.5-hour vacuum -enhanced aquifer test. 5.1 SOIL VAPOR EXTRACTION TEST On November 30, 1994, a 2-hour scsI vapor extraction test was conducted utilizing monitoring well MW-9'. The SVE test was conducted to assess the effectiveness of soil vapor e:raction in the area surrounding MW-9, provide information on the potential radius 25 anda of influence and to estimate the quantity of total petroleum hydrocarbons (TPH) that may be extracted from the subsurface with 50 to 60 inches of water vacuum. Vacuum was applied to MW-9 using a regenerative blower, which was equipped with flow control valves and a sampling port. An organic vapor analyzer (OVA) was used to monitor hydrocarbon vapor concentrations extracted from the subsurface. Induced vacuum was monitored at MW-1, MW-7, and MW-10, using a monitoring well seal fitted with a vacuum gauge. Additionally, two vapor monitoring points (V1 and V2) were temporarily installed 15 and 30 feet, respectively from MW-9. Air flow generated by the blower was measured using an aft velocity meter. Air velocity, vacuum, and OVA readings taken during the test were recorded. The field instrument readings and emission rate calculations from the vapor test are summarized in Appendix D. During the SVE test, a rna Iu vacuum of 58 inches of water was achieved. Air flow from the extraction well was determined to be approximately 20 cubic feet per minute (CFM). A negative pressure was observed in each of the monitoring points during the test. Vacuum levels in V1 and V2 were observed at 1.65 and 1.5 inches of water, respectively. Vacuum levels in the selected monitoring wells ranged from 1 inch of water in MW-1 located approximately 35 feet from MW-9 to 0.55 inches of water in MW-10 located approximately 65 feet from MW-9. A vacuum influence graph was prepared to show the vacuum influence vs. distance elationships. This graph is included in Appendix D. 26 ndc Air samples collected near the end of the test were laboratory analyzed for benzene, toluene, ethylbenzene, and total xylenes (BTEX); total petroleum hydrocarbons (TPH); and methane. Data from the air samples were used to estimate hydrocarbon emissions and mass removal rates. The laboratory analytical reports are provided in Appendix D. Laboratory analysis indicated that near the end of the SVE test, TPH concentrations from the extraction well were 36,800 mg/m3. This data was used to calculate the value of TPH removal per hour from the extraction well. It is estimated that approximately 2.8 Ibs/hour of TPH were removed during the SVE test. TPH removal calculations are presented in Appendix D. Based on the results of the SVE pilot test, it appears that an effective radius of influence of up to 65 feet can be achieved using an applied vacuum of 50 to 60 inches of water at each extraction well. The anticipated volume of air from each extraction point should be approximately 20 CFM. Actual effective vacuum radius and air flow will vary for each recovery well, depending on soil conditions and the heterogenity of the subsurface of each extraction point. Based on the air flow, the radius of influence, and the TPH concentrations observed during the test, it appears that SVE would be effective in removing hydrocarbons from the subsurface within the anticipated radius of influence. 27 lc nde 5.2 VACUUM -ENHANCED AQUIFER TEST A constant -rate aquifer test was conducted to estirr ate the approximate yield that can be expected from the recovery wells and to assess the radius of influence that can be anticipated at a given flow rate. The vacuum -enhanced portion of the aquifer test was conducted to determine if the application of 50 to 60 inches of water vacuum to the recovery wells would enhance groundwater recovery. The aquifer test was conducted in three phases. The first phase was a 6.5-hour constant pumping rate aquifer test to provide drawdown information to assess the hydraulic conductivity of the site. The second phase of the test, conducted in rr ediately after Phase I, was a 4,5-hour vacuum -enhanced aquifer test (conducted with a regenerative blower) to assess the effects of induced vacuum (5u to 60 inches of water) on groundwater recovery. After completion of the vacuum -enhanced aquifer test, the third phase included collection of groundwater recovery data to help assess recovery of the aquifer after pumping conditions. 5.2.1 Aquifer TestWeft lnstaliation On May 26, 1995, an aquifer test extraction well (RW-1) was installed to a depth of approximately 50 feet BLS. This well was constructed with 40 feet of 4-inch diameter PVC well screen (0.020-inch slot size), and 10 feet of 4-inch diameter PVC casing. RW-1 was completed with an 8-inch diameter, flush -grade steel manhole set in a 2-foot square c nda concrete pad. The extraction well was installed dawngradient of the forr tank f• etd, in an area where monitoring points were convenient for testing purposes. 5.2.2 Aquifer Test Procedure On June 8, 1995, a constant pumping rate aquifer test was conducted at the site. Groundwater was pumped from recovery well RW-1 at an average rate of 1 gpm using an electric submersible pump„ Flow was measured using a calibrated bucket and stop watch. A throttling valve was used to set and adjust the pumping rate. The water generated during the test was discharged into a tanker truck and removed from the site for proper disposal. Time and drawdown data were collected durin the test by manually gauging water levels in selected monitoring wells. The water level data relative to static levels and drawdown- aver time are provided in Appendix. E. The water level data recorded during the test was analyzed using the Graphical Well Analysis Package (GWAP Version 2.38) produced by Groundwater Graphics, Inc. 5.2.3 Aquifer Test Results The aquifer test analyses resulted in a calculated average transmissivity value of 16.90 feet squared per day (ft2/day) for the surficial aquifer. Storativity is estimated to be 0.0013. The hydraulic conductivity of the surficial aquifer is estimated to be 0.482 feet/day, and the average groundwater velocity is estimated to be 0.116 feet/day. Under C nde atmospheric pressure, the downgradient stagnation point is estimated to be 151 feet downgradient of the aquifer test well, pumping at 1.0 gpm with approximately 28 feet of drawdown measured during the aquifer test. Additionally, drawdown was observed in the surrounding wells ranging from 1.25 feet of drawdown in MW-11D (12 to 15 feet from RW- 1) to 0.58 feet of drawdown in MW-9 (32 feet away from RW-1). The equations and data used to arrive at these values are included in Appendix E. During the aquifer test, groundwater samples were collected for chemical analysis to aid in the design of the groundwater remediation system, if necessary. The groundwater samples were analyzed for the following parameters: volatile organic aromatics (VOAs) using EPA Test Method 602, total hardness (TH), manganese (Mn), calcium (Ca), arid iron (Fe). The laboratory analytical report included in Appendix E. 5.2.4 Vacuum -Enhanced Aquifer Test Procedure At 6.5 hours into the constant rate aquifer test, vacuum was applied to well RW-1 using a regenerative biower. The blower is capable of generating up to 50 inches of water vacuum. This test was conducted to assess the affects of 50 inches of water vacuum on groundwater recovery. The blower was connected to RW-1 with a 1-inch diameter short drop tube inserted in a well seal equipped with a port to allow the gauging of water levels within the pumping/extraction well. The test procedure involved applying vacuum to RW-1 in 30 ande increments of 25 inches of water and recording changes in water level and induced. vacuum at the extraction well. Air flow generated by the blower was measured using an air velocity meter. Water levels in surrounding wells were monitored during the vacuum - enhanced portion of the aquifer test. Air flow generated by the blower was measured using an air velocity meter. The water level, vacuum, and air flow data recorded during the test are presented in Appendix E. 5.2.5 Vacuum -Enhanced Aquifer Test Results Analysis of the vacuum -enhanced aquifer test shows that the air -flow capacity of the soil is low. A maximum air flow of approximately 16.5 CFM was achieved at 50 inches of water vacuum. The groundwater pumping rate was not significantly increased under vacuum -enhanced conditions. Under 50 inches of water vacuum, the sustained flow rate was 1 gpm. There was no significant increase over the non -vacuum -enhanced pumping rate. After a combined 6.5 hours of pumping and 4.5 hours of vacuum -enhanced pumping, drawdown of 0.58 feet was observed in monitoring well MW-9 approximately 32 feet from RW-1. Hydrocarbon vapor concentrations in the extracted air stream were monitored periodically throughout the test using an organic vapor analyzer (OVA). A sample was collected towards the end of the vacuum extraction test for laboratory analysis to aid in the design of the remediation system and to assess off -gas treatment needs. The vapor sample was ande analyzed for BTEX, methane, and total petroleum hydrocarbons (TPH). Using the analytical data and the calculated flow, the estimated TPH removal rate for the vacuum - enhanced aquifer test was 0.1 pounds/hour. The laboratory analytical report is included in Appendix E. The estimated air flow during the vacuum -enhanced aquifer test (16.5 CFM) is comparable to air flows observed during the SVE test (20 CFM). This suggests that SVE applied to the recovery wells should be capable of producing an equivalent radius of influence as seen during the SVE test. Based on the vapor concentrations from the vacuum -enhanced portion of the aquifer test, this technology should be effective in removing hydrocarbons in subsurface soils. 6.0 REMEDIAL SYSTEMS DESIGN. The conceptual remedial design for the site consists of soil vapor extraction combined with groundwater recovery from five recovery wells. The soil column dewatered by pumping may be remediated via soil vapor extraction. Groundwater will be recovered at a rate of approximately one gallon per minute (gpm) from each recovery well using pneumatic pumps. Recovered groundwater will be routed to a treatment compound located on the northern portion of the site and will be pumped through an oil/water separator and an air stripper, and then treated using a granular 32 Ctndc: activated carbon adsorption (GACA) unit. The treated water will be discharged to the storm sewer system in accordance with a General NPDES permit. Local, State, and Federal permits required for the construction and operation of the system will be obtained prior to start-up of the system. Figure 10 is a map of the proposed system layout. 6.1 GROUNDWATER MODELING AND CAPTURE ZONE ANALYSIS As previously discussed, Handex conducted a vacuum -enhanced aquifer test at the site to assess surficial aquifer parameters. Based on the test data, transMissivity was estimated to be 16.90 ft2/day and hydraulic conductivity was estimated to be 0.482 ft/day. Based on the soil types described on the boring logs (silts to sandy silts), these values appear reasonable. Based on estimated aquifer parameters, the calculated zones of influence of pumping wells were modeled using a particle tracking model developed and released by the EPA. The input data, calculations, and explanations of the model parameters are presented in Appendix F. A capture zone analysis was employed to simulate groundwater flow in the area of the site and determine the optimum recovery well array and flow rates. The model chosen is a modified version of the Ressqc particle tracking groundwater flow model contained in the WHPA (Version 2.01, Blandford and Huyakorn, 1991) well -head protection area computer program. This program was developed by the EPA's International Groundwater Modeling Committee, 33 ndc The flow calculations used in the model are based on several assumptions typical of most groundwater flow models, namely that the aquifer is isotropic and homogeneous. The calculations are valid for horizontal flow conditions with fully penetrating wells and equal. horizontal and vertical hydraulic conductivities. Water table geometry must be planar with a constant gradient. Site -specific characteristics input to the model include transmissivity, saturated aquifer thickness, porosity, direction of groundwater flow, and hydraulic gradient. The modeled system consists of five 4-inch diameter recovery wells. To simulate steady- state conditions, the model was run for 45 days. A map showing the estimated capture zone of the proposed recovery wells each operating at 1 gpm, mposed on the site plan i s presented as Figure 11. In this figure, t`e groundwat a particle path nes are shown, and represent the distance and path a groundwater pa icle could follow in 45 days from the start of pumping. The proposed groundwater recovery well array should provide capture of the dissolved hydrocarbon plume on the site, 6.2 REQUIRED PERMITS Local, State, and Federal permits required for the construction and operation of the system will be obtained prior to start-up of the system. A Mecklenburg County building/construction permit will be obtained prior to system construction, if ecessary. 34 -icindc The charlotte -Mecklenburg Utilities Department currently has a moratorium on discharges to the sanitary sewer system. Therefore, the most feasible discharge option is the storm sewer. To discharge treated effluent from the remediation system to the storm sewer, a General NPDES Permit will be obtained. The CAP will be used to apply for the discharge permit. The anticipated time -frame for General NPDES Permit approval is two months. System construction will not be undertaken until the General NPDES Permit is approved. The air discharge for the site will be registered with the State Air Quality section in Raleigh. Following submittal of the CAP, the permitting process will be initiated to register the vapor discharge from the proposed vapor extraction blower. The anticipated time frame to complete point source discharge registration is six weeks. An air discharge permit from the Mecklenburg County Department of Environmental Protection (MODER) will be required for the SVE systems. Once the soil and groundwater remediation is installed at the site, a pilot test will be conducted to assess the amount of hydrocarbon emissions and the type of air treatment technologies to be utilized, if any. Based on the hydrocarbon emissions data and the treatment unit selected (if any), an air discharge permit application will be submitted to the MCDEP. The anticipated time frame for an air discharge permit will be approximately three to four months. 35 nde 7.0 SOIL REIVIEDIATION SYSTEM Soil remediation will be accomplished by extracting hydrocarbon vapors from the subsurface using a regenerative vacuum blower. The well array was designed using the radius of influence inferred from vapor extraction feasibility test conducted at this site. The vapor extraction well array will be composed of wells designed for a combination of groundwater and vapor extraction, as shown on the proposed system layout presented on Figure 10. 7.1 VAPOR WELL DESIGN Soil vapor extraction will be accomplished by applying vacuum to the five proposed groundwater recovery wells. Each well constructed so that 5-10 feet of 0.020 slotted 4" diameter PVC well screen is above the static water level. The annular space will be filled with silica sand. 7.2 VAPOR EXTRACTION PIPING DESIGN The soil vapor extraction recovery wells will be connected to the regenerative blower using solvent welded 2-inch diameter PVC piping. The PVC piping will be in a subsurface trench from each well and joined to a common 4-inch. PVC header pipe leading to the treatment compound. clndc The common header will terminate into a moisture collection drum designed to prevent moisture from being drawn into the vacuum blower, From the moisture collection drum, vapors will travel through a particulate filter before finally reaching the vacuum blower. A map showing the anticipated vacuum influence from the SVE system is included as Figure 12. 7.3 SOIL VAPOR EXTRACTION BLOWER SELECTION A Gast Model R6p155-Q-50 explosion -proof blower (or equivalent) has been selected for soil vapor extraction. This blower is similar in capacity to the blower used for the SVE test. The manufacturer specifications for the blower are included in Appendix G. The SVE blower should be capable of achieving 50 inches of water vacuum at each recovery well. The flow from each recovery well should be in the range of 15 to 20 GEM. However, actual flow will vary depending on subsurface conditions. Following activation of the SVE system, the system should be operated continuously for five days to evaluate the need, if any, for off -gas emissions treatment. Air samples should be collected from the soil vapor extraction blower stack to calculate the volume and concentrations of hydrocarbon emissions. If results of the air sarnple analyses show that vapor emissions exceed 40 pounds per day (lbs/day) of total petroleum hydrocarbons (TPH) or 8.1 Ibs/year of benzene, reduced extraction rates or treatment may be considered. Based on the results of the air emissions testing, a permanent off -gas c'nda treatment unit could be designed and installed, if necessary, and the vapor stream generated by the blower would be routed through the treatment unit. Should off -gas treatment be necessary, thermal or catalytic oxidizer units and a vapor phase, granular activated carbon (GAC) would be evaluated as potential treatment methods. 8.0 GROUNDWATER RECOVERY SYSTEM Groundwater will be pumped from five recovery wells to create a cone of depression in the water table around the recovery wells. The lowering of the hydraulic head in the surficial aquifer should cause groundwater containing dissolved hydrocarbons to migrate toward the recovery wells. The groundwater recovery system recommended for the site consists of pumping groundwater from five recovery wells at the location shown on Figure 10. Soil -vapor extraction was chosen to more effectively remediate soils dewatered during pumping. The recovery system is expected to produce an average flow of approximately 1 gpm from each groundwater extraction well. 8.1 RECOVERY WELL DESIGN Four additional groundwater recovery wells (R`4''-2 through RW-5) will be installed at the approximate location shown on Figure 10. RW-1 was installed prior to completion of the 38 aquifer test. The total depth of each recovery well will range from 40 to allow for adequate drawdown to provide dissolved hydrocarbon capture. to Each recovery well will be constructed of 4-inch diameter Schedule 40 PVC with flush - threaded joints, with 0.020-inch slot well screen extending from approximately 10 feet BLS to between 40 and 50 feet BLS. The annular space of the screened interval of the recovery well will be filled with silica sand to approximately two feet above the screen. A bentonite seal approximately one to two feet thick will be placed above the filter pack. The remaining annular space will be filled with cement grout. The solid well casing above the screen will provide a good surface seal for vacuum - enhanced groundwater recovery. The recovery well will be completed in a 2-foot by 2- foot manhole set flush with the surrounding surface, 8.2 PIPING DESIGN The conceptual recovery piping layout is shown on Figure 10. The groundwater recovery piping will be constructed of PVC. The pumping equipment selected will be capable of developing sufficient head to overcome the piping system elevation head and frictional losses, and will be capable of delivering the anticipated max gpm to the treatment system. u flow rate of up to 10 C1ndc All piping will be completed approximately 18 inches below grade between the recovery wells and the treatment system compound to prevent freezing during the winter months. A flow control valve, sampling port, and totalizing flow meter will be installed on the discharge line at the treatment compound. 8.3 GROUNDWATER PUMP SELECTION Ejector Systems, Inc. Gladiator Model (or equivalent) controller -less pneumatic pumps have been selected to extract groundwater from each recovery well and pump it to the treatment system. Each pump has an operational capacity from 0 to 8 gpm. It is expected that flow will equilibrate to approximately 1 gpm from each well. Each pump will be equipped with a check -valve to prevent back -flow of water from the treatment system when the pump is shut down. Because the pumps require no controllers, they will be placed in the recovery wells without water level probes. The pumps will cycle only when they have filled with water. Performance data for the specified pump is included in Appendix H. Compressed air will be supplied to the groundwater pumps by a Ingersoll-Rand Model 2540N7.5 (or equivalent) air compressor. The compressor should be equipped with a 7.5 HP, non -explosion proof motor, an 80-gallon receiver tank, and should be capable of producing approximately 32 CFM. The manufacturer's specifications for the air compressor are included in Appendix H. 40 nde 9.0 GROUNDWATER TREATMENT Y TEM DESIGN The recommended groundwater treatment system for the site was chosen with the requirements of the General NPDES Permit for cleanup of petroleum sites in mind. The General NPDES Permit requires the treatment system to be configured wit+n a phase separation oil/water separator, an aeration unit as primary treatment, and a carbon polishing unit prior to discharge. The groundwater treatment system will be enclosed in an atl-weather building to protect it from the elements and freezing. A system schematic showing the recommended treatment equipment is presented as Figure 13. 9.1 OIL/WATER SEPARATOR The first step in the proposed treatment system is the separation of liquid and dissolved phase hydrocarbons. Although minimal LPH has been reported at this site, this step is provided as a safety measure, and to comply with the requirements of t e General NPDES Discharge Permit. The selected oil/water separator (OWS) is the Great Lakes Environmental, Inc. Model SRC-M8 (or equivalent). This separator has a working capacity of 92 gallons, slant rib coalescing packed media, and is rated at a nominal flow rate of 8 gpm. This separator should be able to accomplish phase separation even at the maximum predicted flow rate for the system. The OWS specifications are provided in Appendix I. 41 Linda: The OWS will autornatically discharge LPH (if any) to a separate 55-gallon product holding drum. The holding drum will be fitted with a high level shut-off switch to shut down the recovery system if the drum becomes full. This fail-safe will assure that no LPH discharge occurs. The drum will be managed in such a way that, in the event of LPH accumulation, the drum will be emptied of LPH before automatic system shut-off occurs. The product drum should only be added to the system if the need for bulk storage becomes apparent. Effluent groundwater from the OWS will be pumped via a transfer pump (or by gravity flow) directly to the influent part of the air stripper. 9.2 AIR STRIPPER A CarbonAir Model STAT 30 (or equivalent) low profile air stripper treatment system will provide the primary treatment for recovered groundwater using aeration. The air stripper \.vas selected based on the manufacturer's reported removal efficiency and estimated concentrations of dissolved hydrocarbons in the influent stream. For conservancy, worst case concentrations of each parameter, from the most recent sampling event (May 1995), were used for selecting the appropriate air stripper. These data are summarized in Appendix J. CarbonAir was contacted to recommend an air stripper system capable of achieving effluent Iirnits required by the General NPDES Discharge Permit based on the worst case concentrations, at a nominal flow rate of up to 8 gpm. 42 -land! The air stripper unit includes an explosion -proof blower, six aeration trays, an effluent sump, aeration tray and sump access, sample port, pressure gauge, and exhaust stack. The description, schematic, and performance warranty of the air stripper are included in Appendix. J. The specifications presented by CarbonAir show that the selected air stripper should provide removal efficiencies sufficient to produce an effluent with concentrations below the limits of the General NPDES Discharge Permit. Treated effluent will be pumped, via a transfer pump, through a particle filter to reduce sediment, if any, before fiowina to a granular activated carbon adsorption (GAGA) unit. 9.3 GRANULAR ACTIVATED CARBON ADSORPTION (GACA) The secondary treatment system at the site v.°iif consist of one Handex Model HCA 15 (or equivalent) carbon adsorbtion unit. Secondary treatment by GALA should adsorb BTEX constituents not removed by the air stripper prior to groundwater discharge to the storm sewer system. Concentrations of dissolved hydrocarbon constituents in the carbon influent stream were estimated using "worst case" monitoring well concentrations based on the laboratory analytical results of the most recent groundwater sampling event. Carbon consumption rates for several sizes of GACA units were then estimated using the worst case concentrations. GACA sizing calculations and carbon consumption specifications are included in Appendix K. ands Treated groundwater from the air stripper wi{9 be pumped to the GAGA unit using a Goulds Model NPE (or equivalent) transfer pump with a 2 HP explosion -proof motor. The manufacturer's specifications for the transfer pump are included in Appendix K. The GACA unit recommended has been sized so that there is adequate capacity in the GACA vessel to treat the full estimated BTEX influent concentration (untreated) for approximately nine days. However, the carbon bed life of this unit is expected to be significantly longer based on the anticipated air stripper removal rates. in accordance with the General NPDES Permit, the site will be visited weekly to obtain flow meter readings and to monitor system operation. The proposed GACA system will consist of one HCA 15 GALA unit. The unit contains 400 pounds of activated carbon. The rr anufacturer's specifications on the GACA units are provided in Appendix K. The carbon treatment unit will be capable of backwashing the carbon to remove particulates and extend the carbon bed life. It is proposed to monitor the hydrocarbon concentrations in the influent and effluent to the GAC vessels, and schedule carbon replacements before hydrocarbon breakthrough occurs. Spent carbon from the GALA unit will be returned to the manufacturer for regeneration or disposal. The carbon vessel will be equipped with a pressure sensor which will shut down the recovery system in the event that vessel pressure becomes too high due to fouling of the 44 cindc carbon media. Sampling ports will be provided on the discharge line from carbon vessel, and a totalizing flow meter will be installed on the final effluent discharge line. A particulate filter installed upstream of the GALA unit will remove solids, which will extend the carbon bed life and reduce carbon replacements. The GAGA unit, in this application as a polishing unit, should receive limited hydrocarbons which should be treated by the air stripper. 9.4 PRE-TREATMENT FOR IRON AND BIOFOULING To mitigate the effects of iron precipitation in the carbon beds, influent water to the GAGA system will be pre -filtered of sediment, precipitated iron, and other inorganics using a Filtration Systems Model NS 112 (or eq ivalent) particulate filter. The filter housing will be equipped with a pressure gauge to monitor particulate accumulation in the filter. Fifty micron filters are recommended at start-up, with chances made as needed in the future. Specifications from tie manufacturer are included in Appendix L. 9.5 SYSTEM ENCLOSURE, CONTROLS, AND SAFETY MECHANISMS The OWS, air stripper, transfer pump, bag filter, GAGA unit, and soil vapor extra.cti an equipment should be housed in an insulated building for security and to protect them from the elements. The air compressor is non -explosion proof and will be located outside of the shed. The system control panel, also non -explosion proof, will be located on one of the exterior walls (outside of the shed). 45 cinder The building should be of wood or steel -frame construction with a ceiling height of 7 to 8 feet, and should be equipped with an adequately sized door opening to allow easy access for system monitoring and maintenance. The outside dimensions of the building should be 10 feet by 12 feet, or of adequate size to house the rernediation equipment. For security purposes, the treatment system building should be kept locked. To regulate groundwater flow through the treatment system, a shut-off/throttling valve should be installed on each recovery well influent line at the treatment compound manifold so that the flow rate can easily be adjusted. An influent sampling port should be installed on the influent line of each recovery well and again at the confluence of the recovery wells and the manifold. An effluent sampling port should be installed on the effluent line between the air stripper and the GAGA unit and downstream of the GACA unit. A totalizing flow meter will be installed downstream of the GACA unit. The layout of the piping, valves, and equipment for the groundwater remediation system are shown on Figure 13. 9.6 EFFLUENT DISPOSAL SYSTEM Treated groundwater will be discharged to a storm sewer out -fall located in the southeastern corner of the site (along Sharon Amity Rd.) under a General NPDES Permit. The CAP will be used to apply for the Permit to discharge treated groundwater from the site. The treatment system effluent water quality objectives will be the same as the criteria ands listed in the General NPDES Perrnit. The discharge parameters will be determined by the General NPDES Permitting process, and the surface water stream classification of the receiving waters. The effluent discharge piping will run from the system compound to the storm sewer located on the southeastern corner of the site. The proposed discharge location is shown on Figure 10. 9.7 DISPOSAL OF RECOVERED LPH Recovered LPH, if any, will be disposed of in accordance with applicable local, State, and Federal laws. Recovery of substantial amounts of LPH is not anticipated at this site. 10.0 OPERATION AND MAINTENANCE The operation and maintenance of the proposed remedial system will consist of many tasks relating to the vapor recovery, pumping, treatment, and disposal systems and equipment at the site. A brief synopsis of the planned operation and maintenance schedule is Iisted in the following sections. 10.1 RECOVERY SYSTEMS MONITORING During scheduled operation and maintenance (O&M) visits, the system components should be inspected for proper operation. The total flow from the recovery system should 47 anda be recorded on a weekly basis. The recovery wells, pumps, and piping should be examined during monthly O&M site visits to determine whether adjustments are needed. Water levels within the recovery yells should be gauged periodically to confirm drawdown within the recovery wells. Flow rates and pump intake levels should be adjusted as needed to optimi7e system operation and ma ntain the proper cone of depression for groundwater capture. The soil vapor extraction system should also be checked and adjusted to produce the proper flow rate at each well. 10.2 TREATMENT EQUIPMENT MONITORING The treatment astern is designed for continual operation v,ith minimal maintenance. During scheduled O&M visits, the system should be inspected for proper operation of the treatment system components and for adjustments to the vapor extraction equipment, if needed. System controls should be adjusted as necessary. The treatment system monitoring should consist of -I) Weekly site visits, in accordance with the General NPDES Permt, to obtain effiuent flow meter readings and to observe sys: rn operation, 2) Monitoring of the hydrocarbon concentrations in the treatment system influent, air stripper effluent, and carbon treatment system effluent. Influent and effluent water samples will be collected monthly and analyzed to verify treatment efficiency and permit compliance. These analyses will be conducted weekly for the first two weeks, and monthly thereafter. Influent samples will be analyzed for BTEX. Effluent samples will be analyzed per the General NPDES Permit requirements. 3) Monitoring of soil vapor extraction rates and hydrocarbon concentrations from the soil vapor extraction system with field instruments. These readings will be conducted the first two weeks, and monthly thereafter to help assess hydrocarbon removal rates. C1nc a 4) Monitoring of the sail vapor extraction system will be determined, in part, by the Mecklenburg County Department of Environmental Protection (MCDEP) Air Permit requirements. a) Off -gas treatment equipment may be required at the site depending on the results of a full-scale test of air emissions. Hydrocarbon emissions will be managed, if necessary, according to the requirements of the MCDEP Air Permit. During the scheduled site checks, adjustment of the system will be made as necessary to maintain system efficiency and maximize operational time. 11.0 REMEDIATION PROGRESS MONITORING AND REPORTING Reports required for remediation tracking include quarterly remediation progress reports. These reports will summarize monitoring information collected for the remediation system, and describe the results of Groundwater gauging and sampling. Conclusions about the overall effectiveness of the system to achieve remediation goals will be included along with recommendations for system modification, if necessary. The monitoring frequency for groundwater sampling should be evaluated after the system has been operating for one year. At this time it could be determined if se rrai annual monitoring would be effective for tracking the system performance. 49 11.1 GAUGING OF MONITORING WELLS Groundwater levels should be measured in each monitoring well quarterly. The data will aid remediation tracking. The results of the gauging activities should be summarized in quarterly reports to be submitted to NCDEHNR. 11.2 WATER QUALITY SAMPLING OF MONITORING WELLS Groundwater samples will be collected on a quarterly basis from site monitoring and recovery wells. Each groundwater sample will be analyzed for BTEX and MTBE using EPA Test Method 602 to document remediation progress. These data will be included in quarterly groundwater monitoring reports and will be used to track progress toward remediation goals. 11.3 QUARTERLY REPORTING Quarterly reports will pro vit e a written summary of the remedial action progress for the previous 3-n onth period. These reports will contain inriuent and effluent water -quality data, flow data, and site information. This information will be used to assess remedial progress and project necessary changes to increase the effectiveness or reduce costs for the recovery, treatment, and disposal systems. 11.4 ANNUAL REPORT OF REMEDIATION PROGRESS The final quarterly report each year wiYl serve as the annual report on remediation progress. This report will provide the data for the year from the remediation system start- 50 ande up date. The annual repo will be used to summarize the analytical results for the past year and make recommendations for continued remediation efforts at the site. The annual report will also include any recommendations for changes to increase the effectiveness or reduce costs for the recovery, treatment, and disposal systems. 11.5 REMEDIAL ACTION COMPLETION Handex will periodically monitor the effectiveness of the proposed remedial plan. Remedial action completion may be determined through negotiations with the NCDEHNR and may include application for alternate groundwater clean-up concentrations as alto fMred by Rule (k) of the Amendad 2t_ Groundwater Regulations. 51 cinde REFERENCES American Petroleum Institute, 1989, A Guide to the Assessment and Remediation of Underground Petroleum Releases, API Publication 1628, Blandford, T. Neil, and Huyakorn, Peter S. (1991), WHPA - An Modular Semi -Analytical Model for the Delineation of Wellhead Protection Areas, Version 2.01. U.S. Environmental Protection Agency Office of Groundwater Protection, Washington, D.C. GROUNDWATER GRAPHICS (1986, 87, 88, 89, 90, 91). GWAP - Graphical Well Analysis Package, version 2.38„An Modular Semi -Analytical Law Environmental, Inc. ReportofInitial Site Char' ter'izatianMarch 27, 1992. NWWA, 1=89, Physical and Chemical Properties of Motor Fuels, In,; National Water Well Association, Critical Issues in Underground Storage Tank Management, Properties ca 'iotor Fuels, 1; 8 Tracy, J,V., 1989, Overviewof Factcrs Affecting Subsurface Gasoline Behavior, in: Nstional Water Well Association, Critical Issues in Underground Storage Tank M snagernent, Pro erties of Motor Fuels, 1989, 52 C1ndc: FIGURES .arfy JrH igh"St 1/6 1/4 1✓2 NATID, T TERVAL 1P FEET VERTICAL DATUM OF 1929 QUADRANGLE: LOCATION 1 MILE CHARLOTTE - EAST, N.C. 35E90-137-TE-224 1.967 PHDTDREVISED 1.959 DMA 4654 II1 NE -SERIES V942 AMOCO OII.. COMPANY Sta. No. 57 4475 Randolph Road Charlotte. N.C. GURE NO. 1 TOPOGRAPHIC LOCATION MAP GuL PETRO EXPRESS 0 10 0 APPRox SCALE rt (Former) CROWN Ot_Pcp WAY DRY CLEANERS Amoco OiL Sto #57 c==. SHARIO' ''.MITY ROAD EXXON A OCO OIL COM P Y onclax: Sia No.7 FLUE N 0 44J '13 n o T.:1, v$CiN1.1"Y If AD:I X Of r . . hartotte. C w J m GROUNDWAT z z a TABLE 2 PHYSICAL PROPERTIES OF SELECTED FLUIDS WATER. AUTOMOTIVE GAS 0.998 0.729 AAUTOMOTIVE DIESEL 0.827 KEROSENE 0.839 ET FUEL (NO. 5) 0.844 NO. 2 FUEL OIL. 1,14 0.62 2.70 2.3© NA 4.04* At 25 ° C. Sources: API Publication No. 1628 (1989). NWWA (1989). 2.3 62-103 <6.8 55-217 <2.0 <6.8 <2.0 <6.8 <2.0 <6.8 7.9 APPENDIX LIGING DATA AND YD .L1 •+DIENT CA CU TIONS OBSERVATIONWELL GAUGE REPORTS CLIENT: :3OCO LOCATION: LO TE SS 57 STATE: NC CLIENT CODE: DEM CODE: 105805 print date: /1/95 Page MONITORINGWELL C PRODUCT WATER PRODUCT PRODUCT D,ATE TYPE-# DEPTH DEPTH THICK. ELEV.ELEV. ELEV. (feet) (feet) (feet) (feet) (feet) (feet) ay-9. -95 2-May-95 a95 2-May-95 2-May-95 -Mai`- 95 .-95 .a95 2-May-95 a95 10 12 62 54 67 14.90 38 ,. 23 .20 5'7 8.5°7 8800 8.00 87.45 87.4 7. 3 87.13 86 18 86.18 86.26 . 26 87.16 7.16 " oamen s. p = pumping; N Nem -Primping, 8/A8/A = Before/After Adjustment] Well Inaccessible; nth Monitoring Event of Da = Dry Well; F = Film or Trace of Product) 105805 5 02 ' 5 87,5 contour CALCULATION OF HYDRAULIC GRADIENT AMOCO SERVICE STATION # 57 4475 RANDOLPH ROAD CHARLOTTE, NORTH CAROLINA 86.5 contour 80 87.50 86.50 too 0,016 The average hydraulic gradient = 0.016 HYDRAULIC GRADIENT = dh/d WHERE: dh = change in static water level di = distance between data points GROUNDWATERAPPENDIX 13 ""T. Y DATA ty , 1995, , u st 7, 1995, August 14, 1995) Received From: Handex-NC 3600-G Wood Park Blvd. Charlotte,NC 28206 / C11-1EMIC %t. LAE?C'RA` MUCUS INCORPORATED Date Reported : May 4 1995 Project Number : Amoco#57 PO Number : 105805-06 FDHRSDW Number : 83139 FHRS ENVNumber : E83018 FDER C0MQAPNum : 86-0008G A2LA Number :. 0312-01 NCDEHNR Number : 296 SCDHEC Number 96019 For: 1 Day BTEXM Discount Date Sampled:May 2 1995 Date Received:May 3 1995 Lab Numbers: 7076-7086 REPORT OF ANALYSIS 7076 7077 7078 7079 7080 Parameter Unit Method %ACC %PRC MW1 MW2 MW3 MW4 MW5 Detection Limit Dilution Factor - - 10.0 1.00 10.0 1.00 1.00 Benzene ug/L 0.500 101. 1.61 6950 9.91 1580 216. 655. Toluene ug/L 0.500 105. 3.35 28000 1.36 5910 3.28 397. Ethylbenzene ug/L 0.500 99.3 .580 2630 2.21 331. 2.61 737. Xylene ug/L 0.500 96.6 2.42 12000 2.40 9920 26.9 3200 Total_BTEX ug/L 0.500 99.2 .410 49500 15.9 17700 249. 4990 Methyl-tert-butyleth ug/L 0.500 104. 8.96 3470 524. 459. 96.3 162. PID_Spike ug/L 0.500 109. 2.60 97.8 104. 99.5 107. 98.7 Data Release Authorization Sample integrity a d reliability certified by Lab personnel prior to analysis. Methods of analys ': ac o *. e ith FCL QA and EPA approved methodology. This Report of ma cat be eproduced in part. effers• S. Flowers, Ph.d. President/Technical Director Page 1 of 3 Serving Your Analytical and Environmental Needs Since 1957 Jefferson I.-, Flower, Ph.©. Jefferson S. Flowers, Ph.D. 481 NEWBURYPORT P.O. BOX 150-597 ALTAMONTE SPRINGS FLORIDA 32715-0597 BUS : (407) 339-5984 FAX: (407) 260-6110 Received From: Handex-NC 3600-G Wood Park Blvd. CharlotterNC 28206 C.11EMICAI., LACCUAT[;)FICS INCORPORATED Date Reported : May 4 1995 Project Number : Amoco#57 PO Number : 105805-06 FDHRSDW Number : 83139 FHRS ENVNuxnber : E83018 FDER COMQAPNum : 86-0008G A2LA Number : 0312-01 NCDEHNR Number : 296 SCDHEC Number : 96019 For: 1 Day BTEXM Discount Date Sampled:May 2 1995 Date Received:May 3 1995 Lab Numbers: 7076-7086 REPORT OF ANALYSIS 7081 7082 7083 7084 7085 Parameter Unit Method %ACC %PRC MW6 MW7 MW8D MW9 MW10 Detection Limit Dilution Factor - - -. 1.00 10.0 40.0 10.0 10.0 Benzene ug/L 0.500 101. 1.61 251. 5970 12700 14900 3420 Toluene ug/L 0.500 105. 3.35 17.3 21800 22800 22400 16000 Ethylbenzene ug/L 0.500 99.3 .580 152. 1380 1240 2530 1990 Xylene ug/L 0.500 96.6 2.42 19.3 7690 7810 10300 8260 Total_BTEX ug/L 0.500 99.2 .410 440. 36800 44500 50200 29700 Methyl-tert-butyleth ug/L 0.500 104. 8.96 556. 1060 15700 31800 280. PID_Spike ug/L 0.500 109. 2.60 106. 91.0 110. 87.1 106. Data Release Authorization Sample integrity and reliability certified by Lab personnel prior to analysis. Methods of analyR"s in accordance with FCL QA and EPA approved methodology. This Report ofreproduced in part. Jeffe Flowers, Ph.d. Presid-nt/Technical Director Page 2 Serving Your Analytical and Environmental Needs Since 1957 Jefferson L. Flower, Ph.D. Jefferson S. Flowers, Ph). 481 NEWBURYPORT P.0 BOX 150-597 ALTAMONTE SPRINGS FLORIDA 32715-0597 BUS,: (407) 339-5984 FAX„ (407) 260-6110 Received From: Handex-NC 3600-G Wood Park Blvd. Charlotte,NC 28206 C11,L.M1CA1_ LACI?ATCIICS INCORPORATED Date Reported : May 4 1995 Project. Number : Amoco#57 PO Number : 105805-06 FDHRSDW Number : 83139 FHRS ENVNumber : E83018 FDER COMQAPNum : 86-0008G A2LA Number : 0312-01 NCDEHNR Number : 296 SCDHEC Number : 96019 For: 1 Day BTEXI4 Discount Date Sampled:May 2 1995 Date Received:May 3 1995 Lab Numbers: 7076-7086 REPORT OF ANALYSIS Parameter 7086 Unit Method %ACC %PRC MW11D Detection Limit Dilution_Factor - - - 1.00 Benzene ug/L 0.500 101. 1.61 31.1 Toluene ug/L 0.500 105. 3.35 2,52 Ethylbenzene ug/L 0.500 99.3 .580 <0.500 Xylene ug/L 0.500 96.6 2.42 27.6 Total_BTEX ug/L 0.500 99.2 .410 61.2 Methyl-tert-butyleth ug/L 0.500 104. 8.96 28.4 PID_Spike ug/L 0.500 109. 2.60 112. Data Release Authorization Sample integrity a reliability certified by Lab personnel prior to analysis. Methods of analysac o th FCL QA and EPA approved methodology. This Report of M ma cat be eproduced in part. Jeffers+ S. Flowers, Ph.d. esident/Technical Director Page 3 of 3 Serving Your Analytical and Environmental Needs Since 1957 Jefferson L. Flower. Ph.0, Jefferson 5, Flowers, Ph.©. 481 NEWBURYPORT P.O. BOX 150-597 ALTAMONTE SPRINGS FLORIDA 327154)597 BUS: (407) 339-5984 FAX (407) 260-6110 Received From: Handex-NC 3600-G Wood Park Blvd. Charlotte,NC 28206 For: 1 Day BTEXM Discount Date Sampled:May 2 1995 Date Parameter Unit Benzene Toluene Ethylbenzene Xylene Total_BTEX Methyl-tert-butyleth PID-,Spike Benzene Toluene Ethylbenzene Xylene Total_BTEX Methyl-tert-butyleth PID_Spike Benzene Toluene Ethylbenzene Xylene Total_BTEX Methyl-tert-butyleth PID_Spike ug/L ug/L ug/L ug/L ug/L ug/L ug/L ug/L ug/L ug/L ug/L ug/L ug/L ug/L ug/L ug/L ug/L ug/L ug/L ug/L ug/L Date Reported Project Number PO Number FDHRS Number FDER Number NCDEHNR Number SCDHEC Number [IS C1itMICAL LAUCTATCPUICS INCORPORATED : May 4 1995 Amoco#57 : 105805-06 ; 83139 E83018 : 296 : 96019 Received:May 3 1995 Lab Numbers: 7076-7086 REPORT OF INFORMATION Expected Value Range Correlation 7076 15000 15300 6950 22700 21900 28000 23700 5050 2630 35100 17100 12000 43400 62900 49500 32400 1470 3470 153. 101. 97.8 7077 15000 2120 9.91 37700 2330 1.36 23700 686. 2.21 35100 2100 2.40 44300 4710 15.9 32400 1470 524. 153. 101. 104. 7078 15000 2120 1580 37700 2330 5910 23700 2510 331. 35100 6180 9920 44300 28700 17700 32400 1470 459. 153. 101. 99.5 207 138 131 202 176 207 207 185 150 202 193 176 87 185 150 The above information is intended to highlight exceptional data as compared to the upper control limits (Limit) established for each of the parameters. Range exceedances are flagged by integer values in the Range column. The Expected values are derived from historical data. Expected is computed as either the mean or computed directly from another parameter using linear regression. All known correlation rule exceedances are listed as enumerated rule numbers in the Correlation column. Correlation pair rules, are defined on the last page. Page 1 Serving Your Analytical and Environmental Needs Since 1957 Jefferson L Flower, Ph.D. Jefferson S. Flowers, Ph.D. 481 NEWBURYPORT P,0, BOX 150-597 ALTAMONTE SPRINGS FLORIDA 32715-0597 BUS. „ (407) 339-5984 FAX; (407) 260-6110 Received From: Handex-NC 3600-G Wood Park Blvd. Charlatte,NC 28206 CtlLMiCAL LA [ QLATCL'ItS INCORPORATED Date Reported : May 4 1995 Project Number : Amoco#57 PO Number : 105805-06 FDHRS Number : 83139 FDER Number : E83018 NCDEHNR Number : 296 SCDHEC Number 96019 For: 1 Day BTEXM Discount Date Sampled:May 2 1995 Date Received:May 3 1995 Lab Numbers: 7076-7086 REPORT OF INFORMATION' Parameter Unit Expected Value Range Correlation 7079 Benzene ug/L 15000 2120 216. Toluene ug/L 37700 2330 3.28 Ethylbenzene ug/L 23700 686. 2.61 Xylene ug/L 35100 2100 26.9 Total_BTEX ug/L 44300 4710 249. Methyl-tert-butyleth ug/L 32400 1470 96.3 PID_Spike ug/L 153. 101. 107. 7080 Benzene ug/L 15000 2120 655. Toluene ug/L 37700 2330 397. Ethylbenzene ug/L 23700 686, 737. Xylene ug/L 35100 2100 3200 Total_BTEX ug/L 44300 4710 4990 Methyl-test-butyleth ug/L 32400 1470 162. PID_Spike ug/L 153. 101. 98.7 7081 Benzene ug/L 15000 2120 251. Toluene ug/L 37700 2330 17.3 Ethylbenzene ug/L 23700 686. 152. Xylene ug/L 35100 2100 19.3 Total_BTEX ug/L 44300 4710 440. Methyl-tert-butyleth ug/L 32400 1470 556. PID_Spike ug/L 153. 101. 106. The above information is intended to highlight exceptional data as compared to the upper control limits (Limit) established for each of the parameters. Range exceedances are flagged by integer values in the Range column. The Expected values are derived from historical data. Expected is computed as either the mean or computed directly from another parameter using linear regression. All known correlation rule exceedances are listed as enumerated rule numbers in the Correlation column. Correlation pair rules are defined on the last page. Page 2 Serving Your Analytical and Environmental Needs Since 1957 Jefferson 1.. Flower, Ph.D. Jefferson S. Flowers. Ph.D. 481 NEWBURYPORT P,O, BOX 150-597 ALTAMONTE SPRINGS FLORIDA 32715-0597 BUS- (407) 339-5984 FAX, (407) 280-6110 Received. From: Handex-NC 3600-G Wood Park Blvd. Charlotte,NC 28206 C11FM1CAl.. ILA l3t RATCP US INCORPORATED Date Reported : May 4 1995 Project Number : Amoco#57 PO Number : 105805-06 FDHRS Number : 83139 FDER Number : E83018 NCDEHNR Number : 296 SCDHEC Number : 96019 For: 1 Day BTEXM Discount Date Sampled:May 2 1995 Date Received:May 3 1995 Lab Numbers: 7076-7086 REPORT OF INFORMATION Parameter Unit Limit Expected Value Range Correlation 7082 Benzene ug/L 15000 11300 5970 Toluene ug/L 37700 16200 21800 138 131 Ethylbenzene ug/L 23700 3750 1380 Xylene ug/L 35100 12700 7690 202 176 Total_BTEX ug/L 44300 49100 36800 207 185 150 Methyl--tert-butyleth ug/L 32400 1470 1060 PID_Spike ug/L 153. 101. 91.0 7083 Benzene ug/L 8810 831. 12700 150 Toluene ug/L 22700 19700 22800 207 138 Ethylbenzene ug/L 23700 4540 1240 93 Xylene ug/L 35100 15300 7810 202 176 87 Total_BTEX ug/L 43400 51400 44500 207 207 185 Methyl-tert-butyleth ug/L 32400 10000 15700 43 PID_Spike ug/L 153. 101. 110. 7084 Benzene ug/L 8810 831. 14900 150 Toluene ug/L 37700 2330 22400 Ethylbenzene ug/L 23700 5120 2530 93 Xylene ug/L 35100 17300 10300 202 176 87 Total_BTEX ug/L 43400 4720 50200 207 185 Methyl-tert-butyleth ug/L 32400 11700 31800 43 PID_Spike ug/L 153. 101. 87,1 The above information is intended to highlight exceptional data as compared to the upper control limits {Limit) established for each of the parameters. Range exceedances are flagged by integer values in the Range column. The Expected values are derived from historical data. Expected is computed as either the mean or computed directly from another parameter using linear regression. All known correlation rule exceedances are listed as enumerated rule numbers in the Correlation column. Correlation pair rules are defined on the last page. Page 3 Serving Your Analytical and Environmental Needs Since 1957 Jefferson L. Flower, Ph.0. Jefferson S. Flowers, Ph.D. 481 NEWBURYPORT P.O. BOX 150-597 ALTAMONTE SPRINGS FLORIDA 32715-0597 BUS: (407) 339-5984 FAX: (407) 260-6110 Received From:. For: Date Handex-NC 3600-G Wood Park Blvd. CharlotterNC 28206 1 Day BTEXM Discount Sampled:May 2 1995 Date Received:May REPORT OF INFORMATION Date Reported Project Number PO Number FDHRS Number FDER Number NCDEHNR Number SCDHEC Number 995 Lab Numbers: C11tM1CAL l.Al3CRATCPICS INCORPORATED May 4 1995 Amoco#57 105805-06 83139 E83018 296 96019 7076-7086 Parameter Unit Benzene Toluene Ethylbenzene Xylene Total_BTEX Methyl-tert-butyleth PID_Spke Benzene Toluene Xylene Total_BTEX. Methyl-tert-butyleth PID_Spike ug/L ug/L ug/L ug/L ug/L ug/L ug/L ug/L ug/L ug/L ug/L ug/L ug/L Limit Expected Value Range Correlation 7085 15000 9070 3420 37700 13000 16000 23700 3020 1990 35100 10300 8260 44300 36500 29700 32400 1470 280. 153. 101. 106. 7086 15000 2120 31.1 37700 2330 2.52 35100 2100 27.6 44300 4710 61.2 32400 1470 28.4 153, 101. 112. 131 202 207 185 150 The above information is intended to highlight exceptional data as compared to the upper control limits (Limit) established for each of the parameters. Range exceedances are flagged by integer values in the Range column. The Expected values are derived from historical data. Expected is computed as either the mean or computed directly from another parameter using linear regression. All known correlation rule exceedances are listed as enumerated rule numbers in the Correlation column. Correlation pair rules are defined on the last page. Page 4 Serving Your Analytical and Environmental Needs Since 1957 Jefferson L. Flower, Ph.D. Jefferson S. Flowers„ Ph.D.. 431 NEWBURYPORT P,O. BOX 150-597 ALTAMONTE SPRINGS FLORIDA 32715-0597 BUS: (407) 339-5984 FAX: (4071 260.6110 Received From: Handex-NC 3600-G Wood Park Blvd. Charlotte,NC 28206 For: 1 Day BTEXM Discount Date Sampled:May 2 1995 Date Date Reported Project Number PO Number FDHRS Number FDER Number NCDEHNR Number SCDHEC Number Cult44iCI.. IBIDIPA MIMES INCORPORATED : May 4 1995 : Amoco#57 : 105805-06 : 83139 : E83018 : 296 : 96019 Received:May 3 1995 Lab Numbers: 7076-7086 REPORT OF INFORMATION Correlation 43 87 93 131 138 150 176 185 193 202 207 Pairs Referenced Benzene Benzene Benzene Benzene Ethylbenzene Benzene Toluene Ethylbenzene Ethylbenzene Total_BTEX Toluene, Methyl-tert-butyleth Xylene Ethylbenzene Toluene Toluene Total_BTEX Xylene Total_BTEX Xylene Xylene Total_BTEX The above information is intended to highlight exceptional data as compared to the upper control limits (Limit) established for each of the parameters. Range exceedances are flagged by integer values in the Range column_ The Expected values are derived from historical data. Expected is computed as either the mean or computed directly from another parameter using linear regression. All known correlation rule exceedances are listed as enumerated rule numbers in the Correlation column. Correlation pair rules are defined on the last page. Page 5 Serving Your Analytical and Envirortmental Needs Since 1957 Jefferson L. Flower, Ph.D. Jefferson S. Flowers, Ph.D. 481 NEWBURYPORT PO, BOX 150-597 ALTAMONTE SPRINGS FLORIDA 32715-0597 BUS: (407) 339-5984 FAX: (407) 260-6110 ara, Nut 1pn Factor Benzene ,,.,.. Toluene xren• Total ..,BTEX klesny1-4r1wI nor PO Sputce Project Num PO Number Date Sampled Date Analyzed Compacted Formal Unit Cost 1 Day BTEXM Dlacoun1 ber n up/1. ucy1. 1u8& 7 0 7078 10 6950 27961 11984 495 24 2.40 15.9 524 104 ©ate Received: 1 05-02-95 " 0 NormRR Exted 13000 11 " -643S0 1 000 7078 10 1578 5907 17739 459 99.5 MW-4 7079 7080, 216 3,28 397 L61 J37 26.9 3200 249 96.. 107 4988 9&,7 05-03-95 Typed: 251 _ 17.3 ,152 7 7082 10 _ 21757 1'9,3 ,7693-. 440 36796 FLOWERS I-IEMICAL LABORATORIES ANALYTIC A1 11Et'LTS FORM Ha$ Humber 83139 7083 40 MW-9 10 10 :12690 14943 3418 22799 22427 13 1'4...258 1992 7813 10251 8255 44546 4 29699 15745 p17¢3. 80 110 87,1 106 05-04-95 $ent; 05-04-95 EPA80? EPA60? EPA6O2 EPA6p2 EPA6O2 EPA6Q2 E PA6ti2 ♦ PA602 M ©t_ 0,6 .4 %PS© 1.61 3,35 2.42 2.6 101 105 9,8;3, 104 109 Analys Dale 06-03-95 03- [IA Received From: For: Date Handex-NC 3600-G Wood Park Blvd, Charlotte,NC 28206 C'11[M1CA[. LAL'C IPAIOI21LS INCORPORATE Date Reported : 995 Project Number N57 PO Number : P4a, 3` 94 FDHRSDW Number : 8313194 FHRS ENVNumber : E830r FDER COMQAPNum : 86-0008G A2LA Number : 0312-01 NCDEHNR Number : 296 SCDHEC Number : 96019 EPA625 Discount Sampled:Aug 7 1995 Date Received:Aug 9 1995 Lab Numbers: 8774-8777 REPORT OF ANALYSIS Parameter Surr_Spike(AE) 2-Nitrophenol 4--Chloro-3-methylphe 2,4,6-trichloropheno 2,4-Dichlorophenol 2,4-Dimethylphenol 2,4-Dinitrophenol 2-chlorophenol 2--methy1-4, 6-dinitop 4-Nitrophenol Pentachlorophenol Phenol 3,3'-Dichlrbenzidene Benzidene 1,2-Diphenlhydrazine Bis(2-ethylhexyl)pht Butyl benzyl phthala Di-n-butylphthalate Diethylphthalate Dimethylphthalate Dioctylphthalate. N-Nitrsdimethylamine N-Nitrsdiphenylamine N-Ntrsdi-n-prpylm.ine 2,4-dinitrotoluene 2,6-Dinitrotaluene Data Sample integrity and Methods of analysis This Report of Je Serving Unit Method %ACC %PRC Detection Limit 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 76.0 .030 1.00 64.4 .430 1.00 72.2 .350 1.00 64.0 .390 ug/L ug/L 63.1 .710 ug/L 60.7 .040 ug/L 60.1 .890 ug/L 60.3 1.64 ug/L ug/L 55.6 4.33 ug/L 60.0 .750 ug/L 70.5 2.21 ug/L ug/L 65.5 1.73 ug/L 55.4 .200 ug/L 55.8 2.84 ug/L ug/L ug/L 70.7 .760 ug/L 75.7 1.61 ug/L 75.3 .970 ug/L 72.4 .580 ug/L 65.2 .390 ug/L 73.2 2.40 ug/L ug/L ug/L ug/L ug/L Release Authorization 8774 8775 8776 8777 MW7 MWBD MW9 MW10 72.4 107. 84.4 112. <1.00 <1.00 <1.00 <1.00 <1.00 <1.00 <1.00 <1.00 <1.00 <1.00 <1.00 <1.00 <1.00 <1.00 <1.00 <1.00 <1.00 <1.00 <1.00 <1.00 <1.00 <1.00 <1.00 <1.00 <1.00 <1.00 <1.00 <1.00 <1.00 <1.00 <1.00 <1.00 <1.00 <1.00 <1.00 <1.00 <1.00 <1.00 <1.00 <1.00 <1.00 <1.00 <1.00 <1,00 <1.00 <1.00 <1.00 <1.00 <1.00 <1.00 <1.00 <1.00 <1.00 <1.00 <1.00 <1.00 <1.00 <1.00 <1.00 <1.00 <1.00 <1.00 <1.00 <1.00 <1.00 <1.00 <1.00 <1.00 <1.00 <1.00 <1.00 <1.00 <1.00 <1.00 <1.00 <1.00 <1.00 <1.00 <1.00 <1.00 <1.00 <1.00 <1.00' <1.00 <1.00 <1.00 <1.00 <1.00 <1.00 <1.00 <1.00 <1.00 <1.00 <1.00 <1.00 <1.00 <1.00 <1.00 <1.00 <1.00 reliability certified by Lab personnel prior to analysis. in accordance with FCL QA and EPA approved methodology. reproduced in part. S. Flowers, Ph.d. Cr' airnertta Deeds Since 1957 Page 1 of 3 Jefferson 1.. Flower,, Ph.£), Jefferson S. Flowers„ Ph.D. 481 NEWE3URYPORT P,0. BOX 150-597 ALTAMONTE SPRINGS FLORIDA 32715-0597 B'CUS: (407) 339-5984 FAX (407) 260-8110 Received From: Handex-NC 3600-G Wood Park Blvd. Charlotte,NC 28206 Date Reported Project Number PO Number FDHRSDW Number FHRS ENVNurnber FDER COMQAPNum. A2LA Number NCDEHNR Number SCDHEC Number C1IFMLCAI_ 1,4LLCCAT[?1?lIS INC0R1+0RATE0 Aug17 1995 AMSENC-57 PRJN#34094 83139 E83018 86-0008G 0312-01 296 96019 For: EPA625 Discount Date Sampled:Aug 7 1995 Date Received:Aug 9 1995 Lab Numbers: 8774-8777 REPORT OF ANALYSIS Parameter Isophorone Nitrobenzene Acenaphthylene Acenaphthene Anthracene Benzo(a)anthracene Benzo(a)pyrene Benzo(b)fluoranthene Benzo(g,h,i)perylene Benzo(k)fluoranthene Chrysene Dlbnz(a,h)anthracene Fluoranthene Fluorene Indn(1,2,3-cd)pyrene Naphthalene 1-methyl-Naphthalene 2-methyl-Naphthalene Phenanthrene Pyrene Intl_QA_Spike(2FBP) 4-Brmphnl_phnylether 4-Chlrphnlphnylether B(2-chlrethox)methan B(2-chlrisprop)ether b(2-chlorethyl)ether Data Sample integrity a d Methods of analys This Report of Unit Method %ACC Detection Limit 8774 8775 8776 8777 %PAC MW7 MW8D MW9 MW10 ug/L 1.00 60.2 1.69 <1.00 <1.00 <1.00 <1.00 ug/L 1.00 60.4 2.01 <1.00 <1.00 <1.00 <1.00 ug/L 1.00 54.2 .310 <1.00 <1.00 <1.00 <1.00 ug/L 1.00 61.6 1.19 <1.00 <1.00 <1.00 <1.00 ug/L 1.00 70,2 .040 <1.00 <1.00 <1.00 <1.00 ug/L 1.00 70.3 .600 <1.00 <1.00 <1.00 <1.00 ug/L 1.00 71.7 1.54 <1.00 <1.00 <1.00 <1.00 ug/L 1.00 80.9 1.78 <1.00 <1.00 <1.00 <1.00 ug/L 1.00 74.6 .030 <1.00 <1.00 <1.00 <1.00 ug/L 1.00 76.2 .290 <1.00 <1.00 <1.00 <1.00 ug/L 1.00 72.6 .110 <1.00 <1.00 <1.00 <1.00 ug/L 1.00 67.3 .880 <1.00 <1.00 <1.00 <1.00 ug/L 1.00 75.0 .830 <1.00 <1.00 <1.00 <1.00 ug/L 1.00 64.1 .440 <1.00 <1.00 <1.00 <1.00 ug/L 1.00 69.0 1.19 <1.00 <1.00 <1.00 <1.00 ug/L 1.00 58.9 2.35 111. 177. 203. 216. ug/L 1.00 62.1 1.14 8.80 7.48 36.8 42.5 ug/L 1.00 61.3 1.95 18.0 18.4 72.1 82.0 ug/L 1.00 72.3 1.06 <1.00 <1.00 <1.00 <1.00 ug/L 1.00 72.9 .930 <1.00 <1.00 <1.00 <1.00 ug/L 1.00 86.9 .090 67.3 120. 77.4 108. ug/L 1.00 65.8 2.02 <1.00 <1.00 <1.00 <1.00 ug/L 1.00 61.9 1.28 <1.00 <1.00 <1.00 <1.00 ug/L 1.00 <1.00 <1.00 <1,00 <1.00 ug/L 1.00 60.5 .980 <1.00 <1.00 <1.00 <1.00 ug/L 1.00 60.0 .280 <1.00 <1.00 <1.00 <1.00 Authorization ity certified by Lab personnel prior to analysis. e ith FCL QA and EPA approved methodology. eproduced in part. Release reliabi ac o Jelters S. Flowers, Ph.d. Serving Yibunkitiadyti 2 of 3 Needs Since 1957 Jefferson L. Flower, Ph.©. Jefferson S, Flowers, Ph.D. 481 NEWBURYP©RT P,O. BOX 150-597 ALTAMONTE SPRINGS FLORIDA 32715-0597 BUS: (407) 33!9-5984 FAX (407) 26Si3-5113 ILCWIL IRS Received From: Handex-NC 3600-G Wood Park Blvd. Charlotte,NC 28206 Date Reported Project Number PO Number FDHRSDW Number FHRS ENVNumber FDER COMQAPNum A2LA Number NCDEHNR Number SCDHEC Number C li UMICAC CAUCCACCCUA INcoPPORATED Aug17 1995 AMSENC-57 PRJN#34094 83139 E83018 86-0008G 0312-01 296 96019 For: EPA625 Discount Date Sampled:Aug 7 1995 Date Received:Aug 9 1995 Lab Numbers: 8774-8777 REPORT OF ANALYSIS Parameter 1,2,4-trichlorobenze o-dichlorobenzene m-dichlorobenzene Para-dichlorobenzene 2-Chloronapthalene Hexachlorobenzene Hexachlorobutadiene Hexachloroethane Hexachlorocyclopenta Surr_Spike(DBBP) Acid_BaseExtraction Data Sample integrity nd Methods of ana This Report of 8774 8775 8776 8777 Unit Method %ACC %PRC MW7 MWBD MW9 MW10 Detection Limit 1.00 59.7 3.17 1.00 57.7 .490 1.00 57.6 .240 1.00 58.0 .970 1.00 61.5 1.06 1.00 68.8 1.73 1.00 57.3 .980 1.00 62.2 .180 1.00 1.00 94.9 1.61 ug/L ug/L ug/L ug/L ug/L ug/L ug/L ug/L ug/L ug/L Release reliabi <1.00 <1.00 <1.00 <1.00 <1.00 <1.00 <1.00 <1.00 <1.00 <1.00 <1.00 <1.00 <1.00 <1.00 <1.00 <1.00 <1.00 <1.00 <1.00 <1.00 <1.00 <1.00 <1.00 <1.00 <1.00 <1.00 <1.00 <1.00 <1.00 <1.00 <1.00 <1.00 <1.00 <1.00 <1.00 <1.00 67.1 98.7 87.3 109. Authorization ity certified by Lab personnel prior to analysis. e with FCL QA and EPA approved methodology. reproduced in part. S. Flowers, Ph.d. President/Technical Director Page 3 of 3 Serving Your Analytical and Environmental Needs Since 1957 Jefferson L. Flower, Ph.D. Jefferson S. Flowers, Ph.D. 481 NEWBURYPORT P,0 BOX 150-597 ALTAMONTE SPRINGS FLOR(DA 32715-0597 BUS (407) 339-5984 FAX (407) 260-6110 "CT" Received From: Handex-NC 3600-G Wood Park Blvd. Charlotte,NC 28206 C r1 I; I N C ©R P O Date Reported : Aug17 1995 Project. Number : AMSENC-57 PO Number : PRJN#34094 FDHRS Number : 83139 FDER Number E83018 NCDEHNR Number : 296 SCDHEC Number : 96019 For: EPA625 Discount Date Sampled:Aug 7 1995 Date Received:Aug 9 1995 Lab Numbers: 8774-8777 REPORT OF INFORMATION Parameter Unit Limit Expected Value Range Correlation 8774 Surr_Spike(AE) ug/L - - 72.4 Naphthalene ug/L 16900 330. 111. 1-methyl-Naphthalene ug/L 28400 2000 8.80 2-methyl-Naphthalene ug/L 43100 2610 18.0 Int1_QA_Spike(2FBP) ug/L 231. 87.1 67.3 Surr_Spike(DBBP) ug/L 67.1 8775 Surr_Spike(AE) ug/L - - 107. Naphthalene ug/L 16900 330. 177. 1-methyl-Naphthalene ug/L 28400 2000 7.48 2-methyl-Naphthalene ug/L 43100 2610 18.4 Intl_QA_Spike(2FBP) ug/L 231. 87.1 120. Surr_Spike(DBBP) ug/L - - 98.7 8776 Surr_Spike(AE) ug/L - 84.4 Naphthalene ug/L 16900 330. 203. 1-methyl-Naphthalene ug/L 28400 2000 36.8 2-methyl-Naphthalene ug/L 43100 2610 72.1 Intl__QA_Spike(2FBP) ug/L 231. 87.1 77.4 Surr_Spike(DBBP) ug/L - - 87.3 The above information is intended to highlight exceptional data as compared to the upper control limits (Limit) established for each of the parameters. Range exceedances are flagged by integer values in the Range column. The Expected values are derived from historical data. Expected is computed as either the mean or computed directly from another parameter using linear regression. All known correlation rule exceedances are listed as enumerated rule numbers in the Correlation column. Correlation pair rules are defined on the last page. Page 1 Serving Your Analytical and Environmental Needs Since 1957 Jefferson L. Hower, Ph.D. Jefferson S. Flowers, Ph.©. 451 NEWBURYPORT P.O. BOX 150-597 ALTAMONTE SPRINGS FLGRiDA 32715-0597 BUS: (407) 339-59E14 FAX: (407) 260-6110 Received From: Handex-NC 3600-G Wood Park Blvd. Charlotte,NC 28206 C11!LAICAL ia[iCCAtc1;1C5 ONCCRP©RAtED Date Reported : Aug17 1995 Project Number : ANSENC-57 PO Number : PRJN#34094 FDHRS Number : 83139 FDER Number : E83018 NCDEHNR.Number : 296 SCDHEC Number : 96019 For: EPA625 Discount Date Sampled:Aug 7 1995 Date Received:Aug 9 1995 Lab Numbers: 8774-8777 REPORT OF INFORMATION Parameter Unit Limit Expected Value Range Correlation 8777 Surr_Spike(AE) ug/L - -- 112. Naphthalene ug/L 16900 330. 216. 1-methyl-Naphthalene ug/L 28400 2000 42.5 2-methyl-Naphthalene ug/L 43100 2610 82.0 Intl_QA_Spike(2FBP) ug/L 231. 87.1 108. Surr_Spike(DBBP) ug/L - - 109. The above information is intended to highlight exceptional data as compared to the upper control limits (Limit) established for each of the parameters. Range exceedancee are flagged by integer values in the Range column. The Expected values are derived from historical data. Expected is computed as either the mean or computed directly from another parameter using linear regression. All known correlation rule exceedance5 are listed as enumerated rule numbers in the Correlation column. Correlation pair rules are defined on the last page. Page 2 Serving Your Analytical and Environmental Needs Since 1957 Jefferson L. Flower, Ph.D. Jefferson S. Flowers, Ph.D. 481 NEWBLJRYPORT P.0. BOX 150.597 ALTAMONTE SPRINGS FLORIDA 32715-0597 B11S: (407) 339-5984 FAX: (407) 260-6110 FPA525 1 a IFILCIVU Received From: Handex-NC 3600-G Wood Park Blvd. Charlotte,NC 28206 Date Reported : Project Number : PO Number FDHRSDW Number : FHRS ENVNUmber : FDER COMQAPNum A2LA Number : NCDEHNR Number : SCDHEC Number : For: PB Date Sampled:Aug14 1995 Date Received:Aug15 1995 Lab Numbers: REPORT OF ANALYSIS Parameter 9480 9481 CIALAA1CALL 1_4 ICC C41 CUILS INCORPORATED Aug17 1995 PRJN 34099 105805-07 83139 E83014.74, 86-0008U 0312-01 Y" 296 96019 9480-9483 9482 9483 Unit Method %ACC %PRC MW7 MW8D MW9 MW10 Detection Limit Lead mg/L .00100 102. 3.45 0.0263 .00463 0.0139 .00442 Data Release Authorization Sample integrity and reliability certified by Lab personnel prior to analysis. Methods of analy "s in accordance with FCL QA and EPA approved methodology, This Report o A13 r4t no reproduced in part. fe S, Flowers, Ph.d. Presid nt/Technical Director Page 1 of 1 Serving Your Analytical and Environmental Needs Since 1957 Jefferson L Flower, Ph.D. Jefferson S, Rowers, Ph.D. 481 NEWBURYPORT P.O. BOX 150-597 ALTAMONTE 'SPRINGS FLORIDA 3.2715-0597 BUS: (407) 339-5984. FAX: (407) 260..6110 Received From: Handex-NC 3600-G Wood Park Blvd. Chariotte,NC 28206 C11Ep,t1t A1_ 1.A13O1 AiCS u 5 INCORPORATED Date Reported : Aug17 1995 Project Number : PRJN 34099 PO Number : 105805-07 FDHRS Number : 83139 FDER Number : E83018 NCDEHNR Number : 296 SCDHEC Number : 96019 For: PB Date Sampled:Aug14 1995 Date Received:Aug15 1995 Lab Numbers: 9480--9483 REPORT OF INFORMATION Parameter Unit. Limit Expected Value Range. Correlation 9480 Lead mg/L 10100 152. 0.0263 9481 Lead mg/L 10100 152. .00463 9482 Lead mg/L 10100 152. 0.0139 9483 Lead mg/L 10100 152.. .00442 The above information is intended to highlight exceptional data as compared to the upper control limits (Limit) established for each of the parameters. Range exceedancE— are flagged by integer values in the Range column. The Expected values are derived from historical data. Expected is computed as either the mean or computed directly from another parameter using linear regression.. All known correlation rule exceedanc€ are listed as enumerated rule numbers in the Correlation column. Correlation pair rules are defined on the last page. Page 1 Serving Your Analytical and Environmental Needs Since 1957 Jefferson L, Flower, Ph_0, Jefferson S,. Flowers, Ph.O, 481 NEWBURYPOAT P.0, BOX 150-597 ALTAMONTE SPRINGS FLORIDA 32715-0597 BUS, (407) 339-5984 FAX: (407) 263-6110 FLOWERS HEM IAL LAB ANALS 9 Rr FIRM 11111111.111111111111111.11111 tit), 08 5-95 7-95 Sent: 17-95 APPENDIX SOIL.DISPOSAL CERTlFICATE Cherokee Environmental Grou A Dimon of +Cla rake S CERTIFICATION OF REMEDIATION AND RECYCLING OF NON -HAZARDOUS HYDROCARBON CONTAMINATED MATERIAL ORIGINATING AT: 4475 RANDOLPH ROAD, CHARLOTTE, NORTH CAR©LINA FROM THE „GENERATOR": AM000 01L COMPANY Cherokee Environmental Group ('°CEG") received 1 206 .00 tons of material from the Generator on 5/ 2 4/ 9 5 thru 6/ 14 / 9 5 at its N O RW o o D facility. Receipt of this shipment of NON -HAZARDOUS hydrocarbon contaminated material is evidencedby 3 CEG's ' manifests with control numbers 22538 thru 22563,, 22810 thru 22824 23005 This NON -HAZARDOUS hydrocarbon contaminated material�accepted processes.dln thismaterial to brick will be remediated in one of CEG's fully permitted remediation/recycling acted, ink manufacturing process, the subject material is mixed with raw materials, crushed, ground, compacted, extruded into brick. The brick are preheated and then fired in tunnel kilns at temperatures exceeding 1700 degrees Fahrenheit for a period of approximately 12 hours. This process drives off and/or consumes any organic constituents contained in the material, leaving dea rshed be segregated, prou free of reany hydiroc rbon contamination. Material that is more suitable for bio-remediation beneficially re -used in CEG's permitted bio-remediation operations. CEG guarantees complete remediation: should CEG's bio-remediation processes not reduce the Total Petroleum Hydrocarbons in the subject material to state defined "clean" soil levels, CEG will thermally remediate the material in one of its sixteen (16) brick kilns. It must be stressed that these processes are permitted by the State of Maryland's Department of the Environment, the State of North Carolina's Department of Environment, Health, and Natural Resources, the State of South Carolina's Department of Health and Environmental Control, and the Commonwealth of Vir inia's Department of Environmental Quality, only for the remediation and recycling of NON- HAZARDOUS material. con rac certification does not change etty en CEG and r the Generator (or the Generator's authe terms and conditions of thorized gent)trelatting nt(s), or certification(s) to the referenced material. articular job is filed as WM# 12687 . m AtGROUP 29, 1995 CHERO ENV1R©NTA GROUP, C1 COLON ROAD, SANFO © CEG 18A - APPENDIX SVE TEST: FIELD DAT CALCULATIONS, AND MR LE DATA 1 0 Hcindcx. NANDer rzfi C iCROLINAS, 0. DIN ( IN FEE-F) FROM SVE TEST IJELL AMOCO OIL COMPANY - STA NO 57 44 RANDOLPH ROAD CIITARLOTT, NORTH CAROLINA AMOCO SO* 57 4475 RANDOLPH RD CHARLOTTE, NC MN -9 SVE 1EST NOVEMBER 17 1994 0000030 INCHES H2O k*AAL*-55 INCHES H 1 00 VACUUM NFLUENCE GRAPH (MW-9) N FS. 'E.T/1 0715-95 W, FERGUSON isrA's, No o,S. OS V SOIL VAPOR. EXTRACTION SYSTEM EMISSION RATE CALCULATIONS Site: Amoco SS# 57 4475 Randolph Road, Charlotte, NC The test was conducted from extraction point MW-9. A sample of the extracted vapors was collected during the test for later laboratory analysis. Data used for the following calculations was: The laboratory -determined Total Volatile Petroleum Hydrocarbon concentration was 36,800 mg/m3 after the laboratory removed any methane present. Air velocity of 1000 ft/min was measured in a 2 inch diameter pipe (actual diameter is 2.067 inches) with a Kurz Meter. CALCULATED VALUES Air flow was 20.6 scfm (at 60 degrees F). The laboratory TVPH results can be converted to expected readings on field instruments by the following formula: Where: Vc (ppm-v) = (Vc (mg/m3) / MW) x Vm % LEL = Vc (ppm-v) / 140 MW = molecular weight in g/mole (N-hexane = 86.18) Vm = Volume of 1 mole of gas in liters/mole = 23.7 liters/mole at 60 degrees F 140 = Conversion factor when 100% LEL = 14,000 ppm-v Using these equations, approximately 10,1.20 ppm-v hydrocarbons were present. This converts to: 72% LEL. HYDROCARBON EMISSION RATES The following equation was adapted from API Publication #4410 (1985): Vr (lb/hr) = (Vc (ppm-v) (1,000,000 ppm-v)) x (86.18 lb/lb-mole) x (1 lb-mole/379.5 scf at 60 degrees F) x (Q (scfm)) x (60 min/hr) Where: Vr = Vapor removal rate in lb/hr Vc = Vapor concentration in ppm-v Q = Air flow rate in standard cubic feet per minute 86.18 = molecular weight of N-hexane This simplifies to: Vr (lb/hr) = Vc (ppm-v) x Q (scfm) x (0.0000136) Note: In the API publication, conversion from lb -moles to scf was 385.36 scf/lb-mole. Since that publication was released, the conversion factor was found to be 379.5 scf/lb-mole at 60 degrees F. The above equation and subsequent simplifications use the revised number. Copyright 1993 Handex Environmental Recovery. All rights reserved. Soil Vapor Extraction Sys'temp Emission: Rate Ca Page Site: Amoco SS# 57 4475 Randolph Road, charlotte, NC The estimated hydrocarbon removal rate calculated Vr - 2 8472lb/hour total hydrocarbons. u a.on his equation. LIQUID REMOVAL RATE ESTIMATION The ol owing formula for estimatingliquid removal rates was also adapted from API publication 4410 LPr (l/h) (Vr (lb/hr)) / (d(lbsigal)) Where: LPr = Liquid recovery rate in gal/hour Vr Vapor removal rate in Ib/hour P'd - Hydrocarbon density (6.17 lbsigal for gasoline) (assumes specific gravity of gasoline to be 0.75) for this sisite the estimated liquid removal rate from these extracti points i r = 0 ,.4615 gal/hour, ax 11.075 al day. Reference: Subsurface V nting of Hydrocarbon Vapors from an Underground Aquifer, API Publication 4410, September 9 5. Copyright 1993 andex Environmentalonmen a Recovery. All nigh ery '11 '113M 1 011NOY'i ©i TI3A N0U.3V LX3 YY0113 3NYiS O NOLLO Received. From: Handex NC 3600-G Wood Park Charlotte, NC 28206 For: BTEX TRPH. Date Sampled:Nov17 1994 Parameter Tot_Pet .Hydrocarbons Date Reported Project Number : PO Number FDHRSDW Number : FHRS ENVNumber FDER COMQAPNum A2LA Number NCDEHNR Number : SCDHEC Number : Date Received:Nov18 1994 Lab Number REPORT OF ANALYSIS C 1tM#CA1_ LAUCVATCWILS INCORPORATED Nov21 1994 Amocot57 105805-04 83139 E83018 86-0008G 0312-01 296 96019 : 31053 Unit Method %ACC %PRC Detection. Limit mg/m3 1.00 Benzene mg/m3 Toluene mg/m3 Ethylbenzene Xylene Total_BTEX Methane Methyl-tert-butyleth. Carbon_Dioxide mg/m3 mg/m3 mg/m3 mg/m3 mg/m3 mg/m3 0.500 0.500 0.500 0.500 0.500 0.500 0.500 0.500 Data Release Author Sample integrity and eliability ce Methods of analysis This Report of Anal fferson President 31053 MW9 61800 471. 352. 112. 289. 1220 25000 ation ified by Lab personnel prior to analysis. FCL QA and EPA approved methodology. oduced in part. Flowers, Ph.d. echnical Director Page 1 of 1 Serving Your Analytical and Environmenta Needs Since 1957 Jefferson L. Flowers, PhD Jefferson S. Flowers, PhD 481. NEWBURYPORT Av, ALTAMONTE SPRINGS FLORIDA 32715 0597 BUS: (40T) 339 5984 FAX: (407) 260-6110 Received From: Handex NC 3600-G Wood Park Charlotte, NC 28206 For: BTEX TRPH Date Sampled:Nov17 1994 Date Date Reported Project Number Pa Number FDHRS Number FDER Number NCDEHNR Number SCDHEC Number Received:Nov18 1994 Lab Number REPORT OF INFORMATION FL4WLL'S C1ILMICAL LA I3Cl2ATCI2ILS INCORPORATED Nov21 1994 Amoco#57 105805-04 83139 E83018 296 96019 : 31053 Parameter Unit Tot_Pet_Hydrocarbons mg/m3 Benzene mg/m3 Toluene mg/m3 Ethylbenzene mg/m3 Xylene mg/m3 Total_BTEX mg/m3 56000 3970 5430 740. 1750 6380 ected Value 31053 5640 61800 249. 471. 614. 352. 74.3 112. 216. 289. 726. 1220 Range Correia 74 74 66 212 ion The above information is intended to highlight exceptional data as compared to the upper control limits (Limit) established for each of the parameters. Range exceedances are flagged by integer values in the Range column. The Expected values are derived from historical data. Expected is computed as either the mean or computed directly from another parameter using linear regression. All known correlation rule exceedances are listed as enumerated rule numbers in the Correlation column. Correlation pair rules are defined on the last page. Page 1 Serving Your Analytical and Environmental Needs Since 1957 Jefferson L. Flower, Ph.fD. Jefferson S. Flowers, Ph.D. 461 NEWEIURYPORT P,O, BOX 150-597 ALTAM©NTE SPRINGS FLORIDA 32715-0597 BUS: (407) 339-5984 FAX: (407) 260-6110 Received From: Handex NC 3600-G Wood Park Charlotte, NC 28206 L& UCIPAY 3R INCORPORATE Date Reported Nov21 1994 Project Number : Amoco#57 PO Number : 105805-04 FDHRS Number : 83139 FDER Number : E83018 NCDEHNR Number : 296 SCDHEC Number : 96019 For: BTEX TRPH Date Sampled:Nov17 1994 Date Received:Nov18 1994 Lab Number : 31053 REPORT OF INFORMATION Correlation Pairs Referenced 66 Tot_Pet_Hydrocarbons 74 Tot_Pet_Hydrocarbons 212 Toluene Xylene Toluene Total_F3TEX The above information is intended to highlight exceptional data as compared to the upper control limits (Limit) established for each of the parameters. Range exceedances are flagged by integer values in the Range column. The Expected values are derived from historical data. Expected is computed as either the mean or computed directly from another parameter using linear regression. All known correlation rule exceedances are listed as enumerated rule numbers in the Correlation column. Correlation pair rules are defined on the last page. Page 2 Serving Your Analytical and Environmental Needs Since 1957 Jefferson L, Flower, Ph.D. Jefferson Sr Mowers, Ph.D. 481 NEWEIURYPOFIT P.o. BOX 150-597 ALTAMONTE SPRINGS FLORIDA 32715-0597 BUS: (407) 339-5984 PAX; (407) 260-6110 289 1224 25000 Project Number Amoco#57 P8 Number 105805-04 mpled 1 11-17-94 ' (1e1 a r4atyzed 0 0 NormRR Exted 27500 1 -13750 1 0 NI UnIS Coal Day TED ES CHEMICAL T3CAAL iESULTS f=t 0.e �cc ba Ltd: 1 18 9 a Typed; 11-E1-4 4 APPENDIX UIFER TEST: w T, G HS, noNs Match. Point 90 -3.4 -2 43 0.00 ATCH POINT 1. 00E+U000 1.00 E U0Q . 15aE-0 0 p 1. E+C1 1? } 1.00 .Q 0 —0.43 7 1.5 Data Type Curve Uncenf. E9a #€ beta m 0.00 1 Tr (mom ipit Hydraufle Coed to WELL 'DENT IRATI h! ELATE OF AQQUiEER TEST AQUIFER THICKNESS IS I AR E T PUMPING ELL RADIUS r DISTANCE OF BSEF VAIION E1 Elm IFORMA T ION ERO PUMPIH k' 04) EM 00 0.00 0 0 SE Qt14 ttrr In 1447E- Qi r Data for Pump Test Well Narne: MW-7 Date of Test: 06/08/95 Aquifer Thickness (b): 35.000 ft Pumped Well Discharge(Q) = 1.000 gpm Radius of Pumping Well = 0.410 ft Distance of Observation Well from Pumping Well - 17.000 ft Entry No. ******** 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31. 32 33 34 35 36 37 38 39 40 41 2 Time(t) Drawd+wn(s) t / d (min) (ft) (min/sq ft) ****** ************ ************* 0.250 0.010 8.651E-0004 0.500 0.010 1.730E-0003 0.750 0.010 2.595E-0003 1.000 0.010 3.460E-0003 1.250 0.010 4.325E-0003 1.500 0.010 5.190E-0003 1.750 0.010 6.055E-0003 2.000 0.010 6.920E-0003 2.250 0.010 7.785E-0003 2.500 0.010 8.651E-0003 2.750 0.010 9.516E-0003 3.000 0.010 1.038E-0002 3.500 0.010 9..211E-0002 4.000 0.010 1.384E-0002 4.500 0.010 1.557E-0002 5.000 0.010 1.730E-0002 6.000 0.010 2.076E-0002 7.000 0.090 2.422E-0002 8.000 0.100 2.768E--0002 10.000 0.120 3.460E-0002 12.000 0.120 4.152E-0002 14.000 0.120 4.844E-0002 17.000 0.130 5.882E-0002. 20.000 0.130 6.920E-0002 25.000 0.160 8.651E-0002 30.000 0.160 1.038E-0001 35.000 0.160 1.211E-0001 40.000 0.170 1.384E-0001 45.000 0.170 1.557E-0001 50.000 0.180 1.730E-0001 55.000 0.180 1.903E-0001 60.000 0.180 2.076E-0001 65.000 0.190 2.249E-0001 70.000 0.200 2.422E-0001 75.000 0.220 2.595E-0001 80.000 0.230 2.768E-0001 85.000 0.240 2.941E-0001 90.000 0.270 3.114E-0001 95.000 0.300 3.287E-0001 100.000 0.320 3.460E-0001 110.000 0.350 3.806E-0001 000T'T OL6 `a 0000+az T tit? + 'T O . ; T 0 -°' TO00-avoc OLL T 0- *L OZ L' T Ci[- T "L L' TC t-"L TO00-atitS*9 089 't T 9-; L T. T-s` ozs `' 1tL 0 0, 000 *OE 000 gIC * t % it 'T 1 '0 T { "09T C W T' 000 . CS T 09 66 3 — Data MATCH P 6t__ 0+ E+ 0LD D 2.188E-0002 1 0 11 E+LI U LD 1 lag Tr asrrcvli Hydraulic Conducti tarativit Ua c e Y .20 DLUTN 3E-0004tt rrc a 4a 72E-0003 EL TELL IDENTIFICATION DATE OF AQUIFER TEST AQUIFER THICKNESS IE (L (`DISCHARGE RATE ( ) PUMPING ELL RADIUS (r DISTANCE OF OBSERVATION 1.00 E+0000 PUMPINGSELL (d) 00E 001 Data for Pump Test Well Name: MW-9 Date of Test: 06/08/95 Aquifer Thickness (b): 35.000 ft Pumped Well Discharge(Q) = 1.000 gpm Radius of Pumping Well 0.410 ft Distance of Observation Well from Pumping Well = 32.000 ft 2 Entry Time(t) Drawdown(s) t / d No. (min) (ft) (min/sq ft) ******** ************ ************ ************* 1 8.000 0.000 7.813E-0003 2 10.000 0.000 9.766E-0003 3 12.000 0.000 1.172E-0002 4 14.000 0.000 1.367E-0002 5 17.000 0.000 1.660E-0002 6 20.000 0.000 1.953E-0002 7 25.000 0.000 2.441E-0002 8 30.000 0.000 2.930E-0002 9 35.000 0.000 3.418E-0002 10 40.000 0.000 3.906E-0002 11 45.000 0.000 4.395E-0002 12 50.000 0.000 4.883E-0002 13 55.000 0.050 5.371E-0002 14 60.000 0.050 5.859E-0002 15 65.000 0.060 6.348E-0002 16 70.000 0.060 6.836E-0002 17 75.000 0.060 7.324E-0002 18 80.000 0.070 7.813E-0002 19 85.000 0.080 8.301E-0002 20 90.000 0.100 8.789E-0002 21 95.000 0.120 9.277E-0002 22 100.000 0.140 9.766E-0002 23 110.000 0,170 1.074E-0001 24 120.000 0.200 1.172E-0001 25 130.000 0.200 1.270E-0001 26 140.000 0.220 1.367E-0001 27 150.000 0.250 1.465E-0001 28 160.000 0.290 1.563E-0001 29 170.000 0.300 1.660E-0001 30 180.000 0.300 1.758E-0001 31 190.000 0.350 1.855E-0001 32 200.000 0.350 1.953E-0001 33 210.000 0.350 2.051E-0001 34 220.000 0.380 2.148E-0001 35 230.000 0.400 2.246E-0001 36 240.000 0.430 2.344E-0001 37 255.000 0.450 2.490E-0001 38 270.000 0.470 2.637E-0001 39 285.000 0.480 2.783E-0001 40 300.000 0.500 2.930E-0001 41 315.000 0.520 3.076E-0001 A Is t 1n .00 1, 2.00 3.00 4,00 ,1 00 Match Point b — Data Type Cury Un anf' Ela t# beta '= ,1 1.000E-t-000 ELL IDENTIFICATION GATE OF AQUIFER TEST AQUIFER THICKNESS () DISCHARGE RATE : PUMPING WELL RADIUS r DISTANCE OF OBSERVATION Tron ce 1 rlty° T Hydra lle Conductivity SE11A1"1f1. ELt t RL1 PUMPING L 00 0 0 a .064E-11 q ft1r 3.039E-00 ft r lrt 2.223E®-0 1/ Data for Pump Test Well Name: MW-11D Date of Test: 06/08/95 Aquifer Thickness (b): 35.000 ft Pumped Well Discharge(Q) = 1.000 gpm Radius of Pumping Well = 0.410 ft Distance of Observation Well from Pumping Well - 10.000 ft 2 Entry Time(t) Drawdown(s) t / d No. (min) (ft) (min/sq ft) ******** ************ ************ ************* 1 45.000 0.000 4.500E-0001 2 50.000 0.000 5.000E-0001 3 55.000 0.060 5.500E-0001 4 60.000 0.120 6.000E-0001 5 65.000 0.190 6.500E-0001 6 70.000 0.240 7,000E-0001 7 75.000 0.280 7.500E-0001 8 80.000 0.340 8.000E-0001 9 85.000 0.390 8.500E-0001 10 90.000 0.440 9.000E-0001 11 95.000 0.470 9.500E-0001 12 100.000 0.520 1.000E+0000 13 110.000 0.560 1.100E+0000 14 120.000 0.610 1.200E+0000 15 130.000 0.650 1.300E+0000 16 140.000 0.700 1.400E+0000 17 150.000 0.740 1.500E+0000 18 160.000 0.800 1.600E+0000 19 170.000 0.820 1.700E+0000 20 180.000 0.850 1.800E+0000 21 190.000 0.900 1.900E+0000 22 200.000 0.930 2.000E+0000 23 210.000 0.950 2.100E+0000 24 220.000 0.980 2.200E+0000 25 230.000 1.000 2.300E+0000 26 240.000 1.000 2.400E+0000 27 255.000 1.030 2.550E+0000 28 270.000 1.080 2.700E+0000 29 285.000 1.130 2.850E+0000 30 300.000 1.150 3.000E+0000 31 315.000 1.200 3.150E+0000 32 330.000 1.200 3.300E+0000 33 345.000 1.250 3.450E+0000 34 360.000 1.250 3.600E+0000 35 375.000 1.250 3.750E+0000 t- 7 PA NriallimMammoOr 3 Sex+.crea Dr, and= 111, Doca. Florida 32757-9784 (904) 735-1600 COMPANY: DATE STARTED: TIME STARTED: LOCATION: SERVICE STATIONIANDEDC I OCAII0N CODE WELL � , STATIC WATER LEVEL: TIME SINCE PUMPING STARTED (min.) L7nclax 2757-978-4 COMPANY: DATE STARTED: TIME STARTED: PAGE:, 4 LOCATION: SERVICE STATION # HANI EX LOCATION COOEz WELL # tki STATIC WATER LEVE TIME SINCE PUMPING DEPTH TO WATER FROM STARTED (min.) TOP OF CASING (feet) 7 STATIC WATER LEVEL: andax 79. ILL Dora. F74rfda 32757-9784 7 COMPANY: DATE STARTED: TIME STARTED: PAGE: 3 o LOCATION: . SERVICE STATION # HANDED( LOCATION CODE: WELL # TIME SINCE PUMPING STARTED (min.) COMPANY: LOCATION:, SERVICE STATION # WELL # Surrooglo Dr, DA A Ll1 ©or'o. ' F1 32757-9784 (904) 735 TII�IE STARTED: HANDEX LOCATION CODE: STATIC WATER LEVEL TIME SINCE PUMPING DEPTH TO WATER FROM STARTED (min.) TOP OF CASING (feet) PAG CHANGE IN WA 6 4 1 T: ILCHN nd HAMMY OF FLORIDA, INC, 100 Suneagf. Dr, P.O. Box 1579, Y[t 9'78.4 (904) 735--1800 COMPANY:_ DATE STARTED:. TIME STARTED: PAGE:, cif LOCATION: SERVICE STATION # HANDEX LOCATION CODE WL�L # " STATIC WATER LEVEL:. TIME SINCE PUMPING STARTED (rntn.) DEPTH TO WATER FROM CHANGE IN WATER TOP OF CASING (feet) LEVEL (feet) 7 Cq 5 RO EOLOUST: IA #: n d aroc Or., P.O.Box 1579, Wt. COMPANY: LOCATION: SERVICE STATIONr # WEU. # VA ' . ! STATIC WATER LEVEL: 764 (904) 735-1800 TIME STARTED: PA DATE ST AT1ON CODE:. 0are, FicKida 32757-9764 (904) 735-1800 COMPANY: DATE STARTED: TIME STARTED: PAGc LOCATION: SERVICE STATION s HANDEX LOCATICIwI CODE: WELL # STATIC WATER LEVEL TIME SINCE PUMPING DEPTH TO WATER FROM STARTED] (min.) TOP OF CASING (feet) CHANGE. IN WATER LEVEL (feet,) 6 7 7 HYIftOGEOLIST TECHNICIAN: andex Su eo4• Dr_ P.O. Box 1579. Mt Dom, Florida 32757-4784 (904) 735-1800 COMPANY: .. DATE STARTED: TIME STARTED: PAGE:° LOCATION:_ SERVICE STATION # TIME SINCE PUMPING STARTED (ruin.) HANDEX LOCATION CO() STATIC WATER LEVEL DEPTH TO WATER FROM TOP OF CASING (feet) A11ON CODE: STATIC 4' ATER LEVEL: DEPTH TO WATER TOP OF CASING ( LT, 05- ndax P.O. pox 1579, Wl 32757-9784 (904) 73S-1800 COMPANY:. DATE STARVED. TIME STARTED: PAGE: 3 of LOCATION: SERVICE STATION # WELL # U\ to 11ME SIN t PUMPING STARTED (min.) RO: OLO4 ST: C NI A PAGE: -.06111101"- Suf e©gte COMPANY: DATE ST LOCATION: and= 2(9O4) 735-1&O TIME STARTED: SERVICE STATION #_ HANDEX LOCATION CODE: WELL # 1 eb STATIC WATER LEVEL:. L7ncIeac 2757 77 (904) 745-1000 COMPANY:_ DATE STARTED: TIME STARTED: PAGE LOCATION: SERVICE STATION # WELL # ° 1If HAND I LOCATION CODE: STATIC WATER LEVEL: TIME SING Pt {P STARTED ('a. 0 DEPTH TO WATER FROM TOP OF CASING (feet) CHANGE IN WATER LEVEL {feet,) 0 RST TECHNICIAN: 4x-kko 32757-97194 (904) 735--1800 COMPANY: DATE STARTED: TIME STARTED: w PAGE: of LOCATION: SERVICE STATION # HANDEX LOCATION CODE: WELL # Ilk i1� ' �.. - STATIC WATER LEVEL: TIME SINCE PUMPING STARTED (min.) DEPTH TO WATER FROM TOP OF CASING (feet) A HYDRI TEC AN:. 2757 1F7 4 (9o4j 735--1800 STARTED: DEPTH TO WATER FROM TOP OF CASING (feet) andax RANDEX OF FLORF©A. INC.„ 100 Sun ogio Or,. P.©: Box 1572. I4L Bow COMPANY: DATE STARTED: LOCATION: SERVICE STATION f___. HANDEX LOCATION CO WELL # STATIC WATER LEVEL TIME SINCE PUMPING STARTED (min.) 6 HYDROGEOLOGIST: TECHNICIAN:. PA CHANGE IN WATER LEVEL (feet) STATIC WATER LEVEL: andax P.O. sox i579, COMPANY: ©ATE STARTED: TIME STARTED: LOCATION: SERVICE STATION HAND LOCATION CODE: WELL ¢ _ 6,1 TIME SINCE PUMPING STARTED (min.) HYIJROtEOLOGIST: TECHNICIAN: (904) 735—thOO PAGE: (904) 735-1COO COMPANY: DATE STARTED: TIME STARTED: PAGE:.: +f• LOCATION SERVICE STATION¢ HANDED( LOCATION CODE Wl=il ti 5 STATIC WATER LEVEL..: � / M� --� TIME SINCE PUMPING STARTED (mtn.) DEPTH TO WATER FROM TOP OF CASING (feet) IN WATER Suneogi* Dr and= 32757-0784 (5R04} 735--1808 COMPANY: DATE STARTED: TIME STARTED: PAGE LOCATION:,� Pr. SERVICE STATI HANDEX LOCATION CODE: WELL # M „STATIC WATER LEWL: TIME SINCE PUMPING DEPTH TO WATER i0 STARTED (min..) TOP OF CASING (feet HYUREC9,.,€IGIST: TECI•iNICIAN: S. nonle Dr., L-onclex Dora. flgrlda 32757-9704 (G04) 735--1800 COMPANY•. PATE STARTED: TIME STARTED: PAGE: LOCATION: SERVICE STATION HANDEX LOCATION CODE: vita # STATIC WATER LEVEL DEPTH TO WATER FROM TOP OF CASING (feet) STATIC WATER LEVEL: COMPANY DATE STAR' and.= P.O. Box 1579. NL Dom Florida 32757-9764 (904) 735-1000 TIME STARTED. PAGE:. 3 LOCATION: SERVICE STATION # HANDEX LOCATION C©I WELL # tri (.2 COMPANY: LOCATION: SERVICE STATION f WELL # andex 0784 DATE STARTEDTIME STARTED: PA TIME SINCE PUMPING STARTED (min.) HANDS LOCATION CODE:. STATIC WATER LEVEL _ DEPTH TO WATER FROM TOP OF CASING (feet) COMPANY: 2157-- 784 (90-) 735-1840 DATE STARTED: TIME STARTED: PAGE: LOCATION SERVICE STATION # DS LOCATION cope WELL WELL # (,. G'% ' STATIC WATER LEVEL_ R� 1ST: __ TECHNICIAN: HANDEX OF FLORIO&, tt C. 100 Sur+ealIs a p Box 1579. ►i 734 (904) 735-1800 COMPANY: DATE STARTED: TIME STARTED: PAI LOCATION: SERVICE STATION # HANDEX LOCATION CODE: STATIC WATER LEVEL: WELL # V t TIME SINCE PUMPING STARTED (rnin.) a DEPTH TO WATER FROM TOP OF CASING (feet) H DROC OLCGIST: TECHNICIAN: 00 • Or, P.O. Box 1572. ut. COMPANY: DA LOCATION: SERVICE STATION i VEAL # AR 2 T1 E STARTED; PAGE HANDEX LOCATION CODE: STATIC WATER LEVEL: _ IE SINCE PUMPING STARTED (min.) DEPTH TO ATER FROM N WATER. TOP OF CASING (feet) LEVEL (feet) J HYI ROGEOLOGIST; TECHNICIAN: :NVI3INH33L :1SI t0 0 (� ) 13A31 J13LVM NI 3ONVI J NtSV3 .d0 .401 1Vt 01 HId3© 13&31 ZEILYM OI1V1S :3003 NOLLV003 XJGNVH =Q3j ffIS 31111 ©p94-srL (t06) sets—Lz£ '5LSE x00 0 rzkp ED NI (''4w) g3121V1S ONId lfd 33N1S 31111. :NOILVO©1 :ANVd1103 Narmsormar r) Suneagl. Pr.. P.O. BOX 1579. I t Dora. Florida 327.r} -97 € (904) 735 I800 COMPANY: DATE LOCATION: _-- SERVICE STATION WELL, j andaoc TIME E STARTED: PAGE: HAND E LOCATION CODE: STATIC WATER LEVEL TIME SINCE PUMPING STARTED (rmIn.) s DEPTH TO WATER FROM CHANGE IN WATER TOP OF CASING (feet) LEVEL (feet flu HYDROGEOLOGIST: TECHNIC C761CIax FUMED( OF FLORIDA. INC., 100 Sunecngls Dr.. P.O. Box 1579. SAL COMPANY: LOCATION:__ SERVICE STATION # HANDEX LOCATION CODE WELL STATIC WATERLEVEL: # /r (904) 7735-1E300 DATE STARTED: TIME STARTED: PAGE: DEPTH TO WATER FROM TOP OF CASING (feet) HYDROCEOLOGIST: TECHNICIAN: andex HANDEX Or FLORIDA. INC, 100 Smoogto Dr, P.O. Box 1579. Mt. Dom Florida 32757-9784 (904) 735-1800 COMPANY: LOCATION: SERVICE STA DATE STARTED: TIME STARTED: PAGE HANDEX LOCATION CODE Wu., STATIC WATER LEVEL: of 3 TIME SINCE PUMPING STARTED (min.) 2 5 6 • -75 ci DEPTH TO WATER FROM TOP OF CASING (feet) CHANGE IN WATER LEVEL (feet) HYDROGEOLOGIST: TECHN A ;0' 12) andax WINDEX OF FL[7RfOA, INC.„ 100 Sun«of• O. P.O. Box 1579. Mt. 7 COMPANY: DATE STARTED: TIME STARTED: PAGE f j, LOCATION: SERVICE STATION O HAN©E LOCATION CODE: WELL # STATIC WATER LEVEL TIME SINCE PUMPING STARTED (min.) DEPTH TO WATER FROM CHANGE IN WATER TOP OF CASING LEVEL (feet) H' DROGEOLOGIST: TECHNICIAN: n d ktANoEX OF FU RIDA. INC.. 100 Suneogl. Dr, P.Q. Box 1579. Mt. COMPANY: LOCATION: SERVICE STATION WELL 7 7 A75 i (904) 735-1000 DATE STARTED: TIME STARTED: PAGE:3_ HANDEX LOCATION CODE: STATIC WATER LEVEL: TIME SINCE PUMPING STARTED (min.) DEPTH TO WATER FROI TOP OF CASING (feet) CHANGE. IN WATER LEVEL (feet HYDR ST: CI AN. Received From: Handex-NC 3600-G Wood Park Blvd. Chariotte,NC 28206 For: 3 Day BTEXM Discount Date Sampled:Jun 8 1995 Date Received:Jun15 1995 Lab Number : 11323 REPORT OF ANALYSIS CUFM1€A1.. CAU ATl rii INCORPORATED Date Reported : Jun16 1995 Project Number : AMSENC#57 PO Number : N/A FDHRSDW Number : 83139 FHRS ENVNurnber : E83018 r.. FDER COMQAPNum : 86-0008G A2LA Number : 0312-01 . NCDEHNR Number : 296 SCDHEC Number : 96019 Parameter 11323 Unit Method %ACC %PRC RW1 Detection Limit Dilution_Factor - - - 20.0 Benzene ug/L 0.500 95.0 1.85 10300 Toluene ug/L 0.500 95.0 1.87 23000 Ethylbenzene ug/L 0.500 92.1 2.05 1420 Xylene ug/L 0.500 94.2 2.25 7140 Total_BTEX ug/L 0.500 94.1 2.09 41900 Methyl-tert-butyleth ug/L 0.500 86.5 3.77 2720 PID_Spike ug/L 0.500 102. 1.40 111. Data Release Authorization Sample integrity and reliability certified by Lab personnel prior to analysis. Methods of analy`s in accordance with FCL QA and EPA approved methodology. This Report of A ► C reproduced in part. Jeffe 4,n S. Flowers, Ph.d. Presidnt/Technical Director Page 1 of 1 Serving Your Analytical and Environmental Needs Since 1957 Y Jefferson L. Flower, Ph,f7. Jefferson 5, Flowers, Ph.D.. 481 NEWBURYPORT P,©. BOX 150-597 ALTAMONTE SPRINGS FLORIDA 32715-0597 BUS: (407) 339.5984 FAX (407) 260-61'10 FLUWFrLS Received From: Handex-NC 3600-G Wood Park Blvd. Charlotte,NC 28206 CI1C MICAL. LAIMRATOI?ItS INCORPORATED Date Reported : Jun16 1995 Project Number : AMSENC#57 PO Number : N/A FDHRS Number : 83139 FDER Number : E83018 NCDEHNR Number : 296 SCDHEC Number : 96019 For: 3 Day BTEXM Discount Date Sampled:Jun 8 1995 Date Received:Jun15 1995 Lab Number : 11323 REPORT OF INFORMATION Par Expected Value Range Correlation 11323 Benzene ug/L 8810 831. 10300 150 Toluene ug/L 22700 18500 23000 207 138 131 Ethylbenzene ug/L 23700 4270 1420 93 Xylene ug/L 35100 14400 7140 202 176 Total_BTEX ug/L 38100 52000 41900 202 207 185 Methyl-tert-butyleth ug/L 32400 8180 2720 43 PID_Spike ug/L 153. 101. 111. eter Unit The above information is intended to highlight exceptional data as compared to the upper control limits (Limit) established for each of the parameters. Range exceedance are flagged by integer values in the Range column. The Expected values are derived. from historical data. Expected is computed as either the mean or computed directly from another parameter using linear regression. All known correlation rule exceedancel are listed as enumerated rule numbers in the Correlation column. Correlation pair rules are defined on the last page. Page 1 Serving Your Analytical and Environmental Needs Since 1957 Jefferson L. Flower, Ph.D. Jefferson S. Flowers, Ph.D. 481 NEWBURYPORT P.Q. BOX 150-597 ALTAMONTE SPRINGS FLORIDA 32715-0597 BUS: (407) 339-5984 FAX (407) 260-6110 Received From: Handex-NC 3600-G Wood. Park Blvd. Charlotte,NC 28206 Date Reported . Project Number : PO Number : FDHRS Number : FDER Number : NCDEHNR Number : SCDHEC Number : CL1CMICAL. LADUIPATCLICS INCORPORATED Jun16 1995 AMSENC#57 N/A 83139 E83018 296 96019 For: 3 Day BTEXM Discount Date Sampled:Jun 8 1995 Date Received:Jun15 1995 Lab Number : 11323 REPORT OF INFORMATION Correia 43 93 131 138 176 185 202 207 n Pairs Referenced Benzene Benzene Benzene Ethylbenzene Toluene Ethylbenzene T©tal_„BTEX Toluene Methyl-tert-butyleth Ethylbenzene Toluene Toluene Xylene To to l_BTEX Xylene Total BTEX The above information is intended to highlight exceptional data as comparedto the upper control limits (Limit) established for each of the parameters. Range exceedances are flagged by integer values in the Range column. The Expected values are derived from historical data. Expected is computed as either the mean or computed directly fromanother parameter using linear regression. All known correlation rule exceedances are listed as enumerated rule numbers in the Correlation column. Correlation pair rules are defined on the last page. Page 2 Serving Your Analytical and Environmental Needs Since 1957 Jefferson L. Flower, Ph.D. Jefferson S. Flowers, Ph.D. 481 NEWBURYPORT P.O. BOX 150-597 ALTAMONTE SPRINGS FLORMA 32715-0597 BUS: (407) 339-5904 FAX (407) 2601-6110 FLOWERS CFiEIwtCAL TIES Project Nur1 PO Number Dale Sampled Rate Analyzed Compacted Formal Unit Cost 3 Day 8TF.XM DeOtAttli AMSENC#57 NIA 1 06-08-95 ' 0 0 NorrnRR Exted 10725 4828 i Received From: Handex-NC 3600-G Wood Park Blvd. Chariotte,NC 28206 Date Reported Project Number PO Number FDHRSDW Number FHRS ENVNumber FDER COMQAPNum A2LA Number NCDEHNR Number SCDHEC Number For: TDS TH FE MN CA Date, Sampled:Jun14 1995 Date Received:Jun19 1995 Lab Number REPORT OF ANALYSIS Parameter Total._Hardness TDS Iran Manganese Calcium 11664 Unit Method %ACC %PRC PRW1 Detection Limit mg/L 0.100 96.0 1.35 26.0 mg/L mg/L mg/L mg/L 2.50 93.9 .810 .00100 96.1 1.59 .00004 91.0 1.26 .00500 101. .100 50.0 4.86 1.52 1.45 C1 RN#CAL ILLCRAWL?ICS INCORPORATED } Jun26 1995 : Amoco 11120-697 100-04 : 831i : 03: : 296 : 96019 : 11664 Data Release Authorization Sample integrity and eliability certified by Lab personnel prior to analysis. Methods of analysis or..nc th FCL QA and EPA approved methodology. This Report of Anal uced in part. efersanFlowers, Ph.d. President --clinical Director Page 1 of 1 Serving Your Analytical and Environmental Needs Since 1957 Jefferson L. Flower, Ph..©. Jefferson S. Flowers, Ph.D, 4E11 NEWBURYPOAT P.O. BOX 150-597 ALTAMONTE SPRINGS FLORIDA 32715-0597 BUS: (407) 339-5984 FAX: (407) 280.3110 F1-cWFRS Received From: Handex-NC 3600-G Wood Park Blvd. Chariotte,NC 28206 C EA13n1?ATa121CS IMCoRP©R'ATED Date Reported Jun26 1995. Project Number : Amoco##11120-697 PO Number : 105805-04 FDHRS Number : 83139 FDER Number : E83018 NCDEHNR Number : 296 SCDHEC Number : 96019 For: TDS TH FE MN CA Date Sampled:Junl4 1995 Date Received:Jun19 1995 Lab Number 11664 REPORT OF INFORMATION Parameter Unit Expected Value Range Correlation 11664 T©tal_Hardness mg/L 4030 545. 26.0 TDS mg/L 40200 2360 50.0 Iron mg/L 2140 53.7 4.86 Manganese mg/L 67.9 0.750 1.52 Calcium mg/L 19300 168. 1.45 The above information is intended to highlight exceptional data as compared to the upper control limits (Limit) established for each of the parameters. Range exceedances are flagged by integer values in the Range column. The Expected values are derived from historical data. Expected is computed as either the mean or computed directly from another parameter using linear regression. All known correlation rule exceedances are listed as enumerated rule numbers in the Correlation column. Correlation pair rules are defined on the last page. Setvine Your Ana ica Page 1 and Environmental Needs Since 1957 Jefferson L. Flower, Pfr.©, Jefferson 5, Flowers, Ph.D. 451 NEWBURYP©RT P.O. BOX 150-597 ALTAMONTE SPRINGS FLORIDA 32715-I0597 BUS: (407) 339.5984 FAX: 41771 760-6110 26,0 0 4,I R FLOW RS CHEMICAL LAB ANSDS771C:At 747SUi.TS FORM:.:.. • Bars MO 0774 0,0/01 EPA?9OOj AD LS VA UU I ENHANCED U1FER TEST ANAL CA, RESULTS SOIL VAPOR EXTRACTION SYSTEM EMISSION RATE CALCULATIONS Site: Amoco Station # 57 4475 Randolph Rd, Charlotte, NC The test was conducted from extraction point RW-1. A sample of the extracted vapors was collected during the test for later laboratory analysis. Data used for the following calculations was: The laboratory -determined Total Volatile Petroleum Hydrocarbon concentration was 1,637 mg/m3 after the laboratory removed any methane present. Air velocity of 800 ft/min was measured in a 2 inch diameter pipe (actual diameter is 2.067 inches) with a Kurz Meter. CALCULATED VALUES Air flow was 16.5 scfm (at 60 degrees F). The laboratory TVPH results can be converted to expected readings on field instruments by the following formula: Where: Vc (ppm-v) = (Vc (mg/m3) / MW) x Vm % LEL = Vc (ppm-v) / 140 MW = molecular weight in g/mole (N-hexane = 86.18) Vm = Volume of 1 mole of gas in liters/mole - 23.7 liters/mole at 60 degrees F 140 = Conversion factor when 100% LEL = 14,000 ppm-v Using these equations, approximately This converts to: 3% LEL. 450 ppm-v hydrocarbons were present. HYDROCARBON EMISSION RATES The following equation was adapted from API Publication #4410 (1985): Vr (lb/hr) = (Vc (ppm-v) / (1,000,000 ppm-v)) x (86.18 x (1 lb-mole/379.5 scf at 60 degrees F) x (Q (scfm)) x (60 min/hr) Where: Vr = Vapor removal rate in lb/hr Vc = Vapor concentration in ppm-v Q = Air flow rate in standard cubic feet per minute 86.18 = molecular weight of N-hexane This simplifies to: Vr (lb/hr) = Vc (ppm-v) x Q (scfm) x (0.0000136) Note: In the API publication, conversion from lb -moles to scf was 385.36 scf/lb-mole. Since that publication was released, the conversion factor was found to be 379.5 scf/lb-mole at 60 degrees F. The above equation and subsequent simplifications use the revised number. Copyright 1993 Handex Environmental Recovery. All rights reserved. Soil Vapor xt System Emission RateCalculatio► Page Site: Amoco Station # 57 4475 Randolph Rd, Charlotte, NC The estimated hydrocarbon removal rate calculated from this equation Vr 0.1013 lb hour total hydrocarbons. LIQUID REMOVAL RATETION The foliowing formula, for estimating liquid removal rates as also adapted from API publication 4410: L r ( al r) (V(Vr (lb/hr)) (Pd (lb/gal)) Wher EPr Liquid recovery rate in gal/hour Vr = Vapor removal rate in lb/hour Pd = Hydrocarbon density (6.17 lbeigal for gasoline) (assumes specific gravity of gasoline to be 0.75) For this site, the estimated liquid removal rate from these extraction points is: Er= 0.0164 gal/hour, or 4 gal day. Reference:: Subsurface Venting of H drooarbon vapors froze an Underground Aquifer, API Publication 4410, September 1985. Copyright 1993Handex Environmental Recovery. All right reserved. VACUUM ("h12D) A W .„ ,' DATA G' OVA (PPM) SAMPLE DATE, ; y: DISTANCE FROM EXTRA i10 Lt. TO MONITOR WELL, ft. EXTRACTION WELL: VACUU {ONITOR WELLS " H2O) PAGE Received From: Date Reported : Jun12 1995. Handex-NC Project Number : AMS� - ;7105805 3600-G Wood Park Blvd. PO Number : N/A li d Charlotte,NC 28206 FDHRSDW Number : 83139'` FHRS ENVNumber : E83018 FDER COMQAPNum : 86-0008G A2LA Number : 0312-01 NCDEHNR Number : 296 SCDHEC Number : 96019 For: BTEX TRPH Date Sampled:Jun 8 1995 Date Received:Jun 9 1995 Lab Number : 32163 REPORT OF ANALYSIS Parameter Tot_Pet_Hydrocarbons mg/m3 Benzene mg/rn3 0.500 Toluene mg/m3 0.500 Ethylbenzene mg/m3 0.500 Xylene mg/m3 0µ500 Total_BTEX mg/m3 0.500 Methane mg/m3 0,500 Methyl-tert-butyleth mg/m3 0.500 Carbon_Dioxide mg/rn3 0.500 Unit Method %ACC %PRC Detection. Limit 1.00 216 RW1 1750 27.2 48.3 2.33 6.52 84.3 113. 15.3 Data Release Authorization Sample integrity and reliability certified by Lab personnel prior to analysis. Methods of analy 's in accordance with FCL QA and EPA approved methodology. This Report of � no +�? reproduced in part. Jeffe nn S. Flowers, Ph.d. Presid nt/Technical Director Page 1 of 1 Serving Your Analytical and Environmental Needs Since 1957 Jefferson 1_. Flower, Ph.D. Jefferson S, Flowers, Ph,U, 481 NEWBURYPORT P,O. BOX 150-597 ALTAMONTE SPRINGS FLORNDA 32715,0597 BUS' (407) 339-5984 FAX (407) 260-6110 Received From: Handex-NC 3600-G Wood Park Blvd. Charlotte,NC 28206 [RS Cti[M1CAl_ 1_AINDPAICI IFS INCORPORATED Date Reported : Jun12 1995 Project Number : AMSENC-57105805 Pa Number : N/A FDHRS Number : 83139 FDER Number : E83018 NCDEHNR Number : 296 SCDHEC Number : 96019 For: BTEX TRPH Date Sampled:Jun 8 1995 Date Received:Jun 9 1995 Lab Number : 32163 REPORT OF IN'FORMATION Parameter Unit Expected Value Range Correlation 32163 Tot_Pet_Hydrocarbans mg/m3 79400 7990 1750 Benzene mg/m3 3970 249. 27.2 Toluene mg/m3 5430 361. 48.3 Ethylbenzene mg/m3 740. 74.3 2.33 Xylene mg/m3 1750 216. 6.52 Totai_BTEX mg/m3 6380 684. 84.3 Methane mg/m3 11200 1220 113. Methyl-tert-butyleth mg/m3 - - 15.3 The above information is intended to highlight exceptional data as compared to the upper control limits (Limit) established for each of the parameters. Range exceedances are flagged by integer values in the Range column. The Expected values are derived from historical data. Expected is computed as either the mean or computed directly from another parameter using linear regression. All known correlation rule exceedances are listed as enumerated rule numbers in the Correlation column. Correlation pair rules are defined on the last page, Page 1 Serving Your Anal t%cal and Environmental Needs Since 1957 Jefferson L. Flo or, Ph.D.. Jefferson 5, Flowers, 'PI„ .. 481 NEWBURYPORI P-O. BOX 150-597 ALTAMONTE SPRINGS FLORlDA 32715-0591 BUS: (407) 339 5984 FAX: (407) 2 0 5110 FLOWERS CHEMIC ANALYTICAL FtFWt,TS FARM LABORATIR#ES rAsNtlrreer$ 1qe Sectten Parameter Tt# Pet ITXM Teluen s Tvra( _13TEX methane, 1752 27,2 48.3 153 Date Re Proved Number AMSENC-57105805 PO Number NIA 7eie Sampled 1 06-08-95 • tide Analyzed 0 CorTpseted 0 Formai NormRR Unit Cos* Exted 8TWTRPH/CH4 13750 1 • pwc©unt -6187 1 . 06-09-95 Typed: _ O6-12-95 Sent Method EPA1B EPA le EPA.1B 1 0.6 �EPA1B EPA18 %RSD CJG CJG CJG CJG, CJG CJG APPENDIX GROUND ATER MODELING PA''ETERS TE NAME: SITE LOCATION::. CITY/STATE: DATA USED FOR CAPTURE ZONE ANALYSIS' AMOCO 57 75 RANDOLPH ROAD CI•ARLOTTE, NC AVE` SCE AQUIFER THICKNESS:, AVERAGEGRADIENT: EFFECTIVE POROSITY: RADIUS OF EACH RECOVERY WELL CASINO:. TRANSMISSIVITY: NUMBER OF RECOVERY WELLS: APPRIIMATE PUMPING RATE FOR EACH WEL COORITIANTES OF RECOVERY WELLS TIME PERIOD FOR ANALYSIS: 35 FEET .I 0.1 ASSUMED 0.166 FEET 1 S.IDAY 193 45 DAYS GPM) ALYTICAL SOFTWARE: UNITED STATES ENVIRONMENTAL PROTECTION AGENCY HPA-RESSQC MODEL APPENDIX SVE BLOWER SPECIFICATIONS PUMPS - REGENERATIVE BLO Product Specifications Model Number Phase R3105N-50 Single Hz Motor Specifications Max Vac Max Pressure Max Flow Voltages HP Full Load Amps "H20 mbar ""H2O mbar cfm rn3h 10/220-240 1.33 3-811.9-2,0 , 28 70 31 77 43 73 0 115/208-230 0.5 5.2/2.9-2.6 40 100 43 107 53 90 R4110N-50 Single R4310P-50 Three 110/220-240 ; 0.6 9.2/5.2-4.6 35 87 - 115/208-230 1.0 .4 -5.6 48 120 51 50 220/380 06 60 208-230/460 1.0 1.6 7 II .4- .65 48 120 1 5 95 1 74 127 92 95 ! 74 127'92 126 56 Net. Wt. Ibs kg 52 60 126 58 156 24 28 27 R4P115N-50 Single 60 R5125Q-50 Single 60 50 R5325R-50 Three 190-220/380-415 1,5 5.0-4.4/2.5-2 6 ! 60 208-230/460 2.0 6.0-5,6/2.8 0/220-240 1,0 2 -230 r-1.5 L 40 100 ! 45 112 112 190 .7-9.1 60 149 * 65 162 133 226 R6130Q-50 Single R6340R-50 II1li R6P155Q-50 Single R6P355R-50 Three 1 0 !2,0 25112,5 60 149 79 7 160272 7 6 47 ! 117 50 60 149 ! 65 25133 62 160 226 272- 7 50 220-240 112.5 60 i 230 13.0 0 -220/380-4 5 3.0 60 208-230/460 4.0 4 147-135 65 162 75 187 182 309 129 59 16,3 70 —174 60 149 215 365 14.4-13.417.2-6.8 65 ! 162 75 187 180 306 112 51 13-12/6 80 199 100 249 215 365 50 220-240 4,0 20,8-19.1 65, 162 80 199 235 399 60 230 5.5 29.9 85 212 95 237 280 476 243 110 50 190-220/380-415 ! 4.5 1. 14.9-1 .4 . 65 162 80 199 232 39/1 233 105 60 208-230/460 , 6.0 ! 20-18/9 85 212 100 249 280 ! 4/6 59 1 190-220/380-415 8.0120.8-16.9/10.4-9.5 72 1 179 80 199 ! 95 297 134 R7100R-50 Three 60 208-230/460 110.0L 26.5-24/12 90 224 90 224 420 714 NOTICE': Performance speCificztio.as subieck 10 change wahout notice. 75 0 50 VACUUM -250 50Hz 200 150 100 0 100 200 300 400 r."' FREE AIR FLOW (cfm) 170 PIO 510 660 PRESSURE 250 0 100 200 300 400 FREE AIR FLOW (cfm) nml 1 1 0 170 340 510 680 0 100 200 300 FREE AIR FLOW I —11 I 170 340 510 400 cfm) 680 100 200 300 400 FREE AIR FLOW (cfm) 1 1 0 170 040 510 E80 550 500 mbar 850 Free software identifies best Gast blowers for soil and groundwater remediation Now you can size and select regenerative blowers and accessories For soil and groundwater remediation systems faster, easier and more accurately than ever before. Gast remediation system engineering software does the job and it is yours for the asking. The 3)14-inch IBM-compatible disk calculates performance when the blower is operating with both a vacuum and pressure load at the same time The programs will also compensate For changes in performance from altitude and temperature, helping you identify the oplimurn Gast blowers for your application. Coll 1-800-952-4278 to receive your free remediation system engineering software 4 OIL VAPOR EXTRACTION Pt1�IPS Model R3 Models R4, R4P, R5, R6 Product Di ensions Model A R3105N-50 131 5.17 R4110N-50 157 6.18 157 6.18 R4P115N-50 i 177 6.98 R51250-50 178 7.00 R5325R-50 178 7,00 R61300-50 197 7.75 R431 OP-50 R6340R-50 i 197 7,75 R6P1550-50 248 9.77 R6P355R-50 248 80 9.77 R7100R-50 274 92 10 79 3.64 2" PtPE (2) (R5) PIPE (4) -. (R4, R4P,, R5) Metric (mr-n) 35 1,37 1. U.S. Imperial (inches) E F G 310 83 80 12.20 3.25 3,03 43 389 95 72 1,68 % 15.30 3 75 2,85 43 356 95 72 1.68 47 1.84 46 1.82 46 1.82 49 1.94 49 1.94 80 3.15 3.15 4.03 3.75. a 2.84 442 114 17.41 4,50 445 114 17.50 4,50 423 114 16.66 4,50 511 140 20.13 5.50 478 140 18.82 5.50 602 140 23.7 5..51 554 140 21,80 5.51 83 3.25 91 3,58 91 3.58 98 3.85 98 3.85 137 5.39 137 5,39 281 324 Models R6P, R7 34 NPT (R4, R6) I3 NPT (R5, R4P) 11.06 i 12.75 316 313 12.44 112.31 316 12.44 354 13.93 49 1.94 99 3.88 50 ! 101 98 3.96 313 t 50 12.31 1,98 338 361 344 14.22 p 13,56 361 344 14,22 1 13.56 404 389 15,89 15.30 404 15.89 438 17.25 7 428 16.87 438 428 17,25 116.87 545 457 577 216 1 212 22.72 8.5 8.3372 21.46 ; 18.00 Notice: Specifications subject 4o change without notice 60 2.38 60 2,38 60 2.38 101 3,96 121 4.75 205 8.06 225 8.86 225 8.86 260 10.25 121 260 4.75 110.25 121 4.75 62 125 2.46 4.92 260 10.25 289 11,38 62 125 ' 289 2.46 4.92 11.38 127 5.00 - 64 2.50 64 ( 127 2.50 5.00 100 200 j 7.88 1 _ 114,76 K 206 8.12 227 8.93 227 8.93 258 9.38 10.15 254 293 10.00 11.73 '254 293 10,00 11.73 262 298 346 10,31 11.75 1 .13.6 262 298 350 10.31 11.75 13.78 262 298 j 350 10,31 11.75 i 13.78 290 329 391 11.42 12.96 15.38 1 290 329 12.96 290 325 12.80 290 325 1.42 12.80 375 C 410 16.14 1.42 1.42 390 15.34 463 8.21 463 18.21 09 20.02 N 0 13 53 175 11 6.88 .44 175 11 6.88 .44 175 15 6.88 .60 173 15 6.81 .59 183 15 7.19 .59 217 13 8.56 .52 217 13 8.56 .52 257 13 10.12 .50 257 10.1250 257 14 0.12 .56. The moisture separator removes liquids from the gas stream in a soil vapor extraction process, to help protect both blower and vapor treatment system from corrosion and mineral deposit buildup. The moisture separator is located between the extraction wells and the blower. An in -line filter is. installed between separator and blower.. Cud eiway do show ball float. Above model shows opdional explosionprcof Hoof swidch Regen©isture Separator Specifications Practical Design Engineered to remove and contain moisture ranging from a fine mist to slugs of water from blower inlet air streams, Gast moisture separators incorporate a cyclonic action which results in a very high degree of efficiency, A floating ball valve which closes when the liquid level becomes too high prevents collected liquid from overflowing back into the air stream. When the float valve closes an integral vacuum relief valve opens, admitting air to cool the blower and prevent overheating. Rugged Construction Gast moisture separator drums are made from ribbed heavy gauge cold -rolled steel, with heavy steel inlet, drain and float switch parts welded to the drum wall. Drum interiors are epoxy coated to resist abrasion, corrosion and chemicals, while the drum exterior is coated with durable urethane. For ease of connection, the outlet port is female pipe threaded. The heavy-duty 304 stainless steel ball float resists chemicals. A pilot operated precision valve capable of functioning over a wide duty range, the vacuum relief valve is designed and built to proven reliability and durability standards. Moving parts are nickelplated for corrosion resistance and smooth operation. RESTRICTION VS. FLOW 0 100 200 300 FLOW (cfm) 0 136 272 408 544 680 RELIEF VALVE SHIPPED UNATTACHED APPROX. REF, 3/4' NPT VALVE NIPPLE & VALVE SHIPPED UNATTACHED 0 REF: 40 2 24 s 400 mbar NPT APPROX. 11 APPENDIX H GROUNDWATER It's all in the name... EJECTOR SYSTEMS introduces a new leader, an internally controlled ejector, to its arsenal of groundwater remediatian pumps. EJETm®STEMS "T e broadest line i tlt indi. vey 910 National Avenue Addison, Illinois 60101 1-800-OIL-LEAK Featuring: TOP FILL - STANDARD UNIQUE INLET CHECK VALVE INLET STRAINER - BUILT-IN EJECTOR SYSTEMS INC. GLADIATOR -OTAL FLUIDS PUMPING SYSTEM D AIR SUPPLY WATER TABLE (CONE OF DEPRESSION GROUN AIR LINE VENT UNE U P DISCHARG GLADIATOR TOTAL FLUIDS PUMP GLADBG SCHARGE CONTRO MECHANISM An internally controlled pneumatic ejector. Standard Lengths: 3 and 5 feet Diameter: 3 1/219 foi instillation in 4" diameter wells Materials of Co Options: struction: Body - 304 Stainless Steel Fittings - Bronze Check valve flapper - Viton Special lengths Air filter/regulator All stainless steel Counter Well level indicator Other Ejector Systems products: S2 Total Fluids Ejector Product Only Ejector Level Tracking Puck Pump Two -Pump Systems Multiwell Air Strippers Oil / Water Separators VES Sparge Packaged Systems lt's in the n l e...Ejecto Systems nu acturer cif the broadest line of ejectors in the Groundwater RemediatiOn Industry. EJECTOR SYSTEMS, INC. 91.0 National Avenue Addison, IL 60101 1-80'0-OIL-LEAK APPENDIX IL ATER SEPAw;SPECIFICATION PERFORMANCE The model SRC-.M Slant Rib Coalescing Oil/Water Separator will continuously remove essentially all non. -emulsified oil from waste water containing minimal solids, and produce an effluent with less than 10 mg/1 of oil droplets larger than 20 microns. After separation, the oil and water discharge through individual nozzles. OPERATION The SRC-M is manufactured as a single piece, molded polyester fiberglass unit with special baffles and weirs to direct flow, skim oil and control liquid levels in the separator, The slant rib coalescing media is oleophilic (oil attracting) and has an efficient sinusoidal flow pattern to promote impingement of the oil droplets on the media surface. The oil coalesces and rises to the surface of the separator where the oil is automatically decanted by an adjustable skimmer. Fiberglass Efficient Low Cost • Available From Stock APPLICATIONS Surface skimmings CI Ponds C7 Wash tanks • Rinse tanks Ell Sumps Ground water Q Condensa:te El Cooling water [1] Floor drains FEATURES • Six sizes: 2 to 24 GPM • Gravity flow • Leak proof • Lightweight • Lift off cover • Adjustable oil weir • Clean in place • Thmperature; range to 130 F DRAIN ADJUSTABLE KIMMER DRAIN OIL OUTLET DIMENSIONS WEIGHTS & CAPACITIES ° , :1-4( "h • „ "tr , Dimensions and capacities are for reference only and not to be used for construction. Model No, represents nominal flow rate in GPM. NOTE: OIL OUTLET Fbr continuous or intermittent flows of 15 to 4000 GPM, containing solids that settle, GLE offers the standard model SRC Slant Rib Coalescing Oil/Water Separator in either steel or fiberglass construction. The model SRC offers superior oil removal efficiency, sludge chamber and oil reservoir. Available Options Dense coalescing pack El Oil pump out Li Sludge pump out 111 Effluent pump out II Freeze protection • 15 standard sizes • Some models available from stock 463 Vista • Addison, IL 60101 • 708-543-9444 FAX 708-543-1169 CilETBae„fin STRG-M90 lui ta, a4 V V: JD Q7U6 543 1169 Lain Gov. t.Uf411 GREAT LAKES ENVIRONMENTAL,, LEC. MODEL BRC_M KOLL MED FIBERGLASS OIL/WATER SEPARATOR GREiT I KES \„ VIRONMGNFAL GREAT LAMES ENVIRONMENTAL, INC,, Model SRC-M Slant Rib Coalescing Oil/Water Separator sized and designed to remove free oil from a solids free wastewater stream and produce an effluent containing less than 10 mg/1 of oil droplets larger than 20 microns. Water: 1.0 specific gravity, solids free Oil: 0.90 specific gravity or less Temperature 130 Degrees F or less DESI 1) GENERAL The separator is molded premium grade fiberglass construction with Slant Rib ail Coalescing Media, interior baffles and removable cover. Coalesced oil will rise to the surface in the separation chamber and is automatically skirmed. Oil flows from, the separator by gravity. Clean water flows under a baffle and over a weir cascading into a clean water chamber before exiting the separator. 2) INLET CHAMBER Inlet nozzle that is non -clogging and disperses the flow evenly across the depth and width of the coalescing media. 3) SEPARATION CAAABER Slant Rib Oil coalescing media consisting of closely spaced inclined plates designed to induce impingement of oil droplets on the media surfaces. Media is cleanable with 1/ 4 "" maximum spacing. 463 Vista, Addison, IL 60101, 708/563-9444, FAX 708,1543-1169 1/93 SRC-K 1U/4J/U4 VU:J0 U 7Uti a4J 110V latUJL.L LAALS ZNy. wj UUJ/ U11 CLIENT 4 CITY, STATE Proposal. No; DATE:: GREAT KES cj V RGNMCN[AL ? 4) OIL 8KIKNER Adjustable oil skimming weir. Does not require loosening of bolts. Oil flows from the separator by gravity. 5) CLEAN WATER CHAMi' R Treated, water leaving the coalescing media passes under an oil retention baffle and then over a weir which maintains the water level. Clean water flows from the separator through a pipe outlet. 6) COVER The separator is covered with a removable, Sift off, light weight, FRP lid. Two (2) nickel plated lifting handles are included.. 7) MATERIALS Tank is constructed of 1/4" thick premium grade polyester FRP. Pipe, fittings and skimmer are Schedule 40 PVC. Coalescing media is PVC. Wetted gaskets are Buna N. 8) DIMENSIONS MODEL SRC - 2 M-4 M-6 M-16 M-24 Influent flow (GPM) 2 4 6 8 16 24 Total volume (GAL) 23 46 69 92 184 276 Coalescing area (sq ft) 136 272 408 544 1088 1632 Weight: empty (LBS) 80 120 170 140 200 260 operating (LBS) 272 504 745 907 1735 2562 15" 26" 39" 15" 26" 39" 45" 45" 45" 58" 58" 58" 22" 22" 22" 34" 34" 34" Tank size width length height Inlet (1) Outlet (1 Oil (2) Drain (2) 1/2" 1/2" 2" 3/4" 1/2" 2" 2" 3" 3" 1/2" 2" 2" 3" 3" 2" 2" 2" 3" 3" 3/4" 3/4" 3/4" 3/4" 3/4" 463 Vista, Addison, i'L 60101, 708/543-9444, fAX 708/543-1169 1/93 SRC-M itl/Zb/1/4 Old:Jo Xiruo Aluo tlIALAt LAIMJ LINV. MUVVVIVII CLIENT CITY, STATE Proposal No: DATE; OPTIONAL EG GREAT LAKES (5 V RONMeNTAL z A) ELEVATION STAND Carbon steel, angle iron stand to elevate the separator 36" above grade. Elevation is suitable for locating a 55 gallon barrel under the stand for oil collection. 13) EFFLUENT PUMP OUT Centrifugal submersible pump, 1/3 HP, is installed in the clean water chamber. Pump has integral high level -low level controls for turning the pump on and off. (11OV, 1 pH, 60 Hz). Pump is plumbed with pvc piping and effluent flow control nozzle. Pump will produce a maximum discharge pressure of 7.5 PSI at 24 GPM. C) HIGH -HIGH WATER, LEVEL SWITCH Float switch installed through the side -wall of the separator in the clean water chamber. D) HIGH vEL-Low LEVEL LOAT 'MITCH Dual float level switches installed through the side wall of the separator in the clean water chamber. E) COVER CLAMPS AND HOLDDoWN FRP lift off cover has a neoprene gasket to seal on the lip of the separation chamber. Clamps or bolts to hold the cover in place are provided. P) HOLDDOWN CABLES Four (4) stainless steel cable straps with galvanized steel turn buckles for anchoring the SRC-M separator to a foundation. (Enbedment hardware by others). G) INTEGRAL OIL RESERVOTR Integral oil storage compartment is available on four (4) models with rated flows of 2 GPM, 4 GPM, 8 GPM and 16 GPM. 463 vista, Addison. 1 t 60101, 708/543-9444, FAX: 708/543-1169 1/93 SRC-m 1V/4J/04 lla.JO wnc.nl i tt1 c tti * CLIENT CITY, STATE Proposal No: DATE: PTIO S+ UIPMEContinued GREAT SAKES 'IRONMCNCAL z H) RED d ` (PLYETRYLENE). Rotationally molded, compact, rectangular polyethylene tank with top inlet and bottom 3/4" drain (NPT) Tank will conveniently fit under the elevation stand described in (A). (Customer to verify this construction will meet local fire regulations). Available sizes: 30 GAL - 19' X 25"L X 20"H," 16# 50 GAL - 19"W X 38"L X 20"H, 22.5# 100 GAL .. 3 0 "W X 3 8 "L X 2 6"H, 41. 5# I) RECOVERED OIL TANK (DOUBLE WALD. STEEL) Carbon steel, urethane coated, type 1 double wall, I3L approved tank with base, top NPT nozzles, and interwall access nozzle. 50 GAL - 24" Diameter X 24" Long 100 GAL - 24" 'Diameter X 30" Lang 150 GAL - 30" Diameter X 52" Long J) INSTALLED BULK HEAD FITTINGS GLE will be pleased to provide and install additional PVC bulk head fittings with Buna N gaskets for your specific piping ,and/or instrument needs. ( ) 3/4" Diameter ( ) 1.5" Diameter ( ) 1" Diameter ( ) 2" Diameter X) INLETMANIFOLD DISTRIB�R Inlet manifold fabricated out of PVC pipe and fittings to accept and distribute oily ground water from multiple well discharge nozzles. Manifold will be installed on the SRC-M inlet nozzle. 1-1/2" Diameter 2 Point, 4 Point 2" Diameter 2 Point, 4 Point 3" Diameter 2 Point, 4 Point 463 Mists, Addison, IL 60101, 708/543-9444, FAX 7i3/543-1169 1/93 SRC-m APPENDIX J WORST CASE INFLUENT ..ONS AND AIR STRIPPERSPECIFICATIONS AMOCO STATION # 57 4475 RAAN OLPH ROAD CHARLOTTE, ( E, NC WORST CASE CONCENTRATIONS BLEED ON HIGHEST CONCENTRATIDN FROM ELEC C MONITORING WORT BENZENE CC)NCENTRArICN(/M) WORST TOLUENE C NCENT TICN(69/9 WORST ETHYLBENZENE C NICEN ATICN( /1) WORT XYLENE C()I\JCENTRATICN(/1) TOTAL. BTEX (WORST CASE) NCEN ATICN(ug/I WORST I ^ITEE Ct NCENTRATICN(u /1) 14900 28000 0 12000 57530 10 WORST CASE CONCENTRATIONS FRO M MAY 1 5 AIr9FLING EVENT. AUG-11-1995 i0:12 CARBONAIR SYSTEMS 6124256882 P.03/08 Carbonair Environmental Systems 8640 Monticello Lane Maple Grove, MN 55369 612-425-2992 800-526-4999 Fax: 612-425-6882 ___-__----_-STAT 30-------- ----- VERSION 2.4 WATER FLOW RATE: 8.0 gpm AIR FLOW RATE: 150.0 ctm. WATER TEMPERATURE: 60.0 F AIR -TO -WATER RATIO: 140:1 Influent Conc. for BENZENE 14900.0 ppb 08/11/95 09:11:29 NO OF REMOVAL EFF EFF CONC OFF -GAS CONC AIR EMISSION TRAY % ppb ug/1 lb/d 1 89.56103 1555.4068 95.3185 1.2816 2 98.87605 167.4678 105.2324 1.4149 3 99.87859 18.0901 106.2994 1.4293 4 99.98688 1.9548 106.4146 1.4308 5 99.99858 0.2112 106.4271 1.4310 6 99.99985 0.0228 106.4284 1.4310 Influent Conc. for TOLUENE 28000.0 ppb NO OF REMOVAL EFF EFF CONC OFF -GAS CONC AIR EMISSION TRAY % ppb ug/1 lb/d 1 86.91.967 3662.4929 173.8393 2.3374 2 98.22714 496.4021 196.4543 2.6415 3 99.75858 67.5989 199.5172 2.6827 4 99.96710 9.2114 199.9342 2.6883 5 99.99552 1.2553 199.9910 2.6891 6 99.99939 0.1711 199.9988 2.6892 Influent Conc. for ETNYLBENZENE 2630.0 ppb NO OF REMOVAL EFF EFF CONC OFF -GAS CONC AIR EMISSION TRAY % ppb ug/1 lb/d 1 88.46861 303.2755 16.6195 0.2235 2 98.63553 35.8855 18.5294 0.2491. 3 99.83806 4.2590 18.7553 0.2522 4 99.98077 0.5056 18.7821 0.2525 5 99.99772 0.0600 18.7853 0.2526 6 99.99973 0.0071 18.7857 0.2526 Influent Conc. for XYLENES (TOTAL) 12000.0 ppb NO OF REMOVAL EFF EFF CONC OFF -GAS CONC AIR EMISSION TRAY % ppb ug/1 lb/d 1 88.89184 1332.9795 76.1930 1.0245 2 98.73583 151.6998 84.6307 1.1379 3 99.85574 17.3112 85.5906 1.1508 4 99.98353 1.9761 85.7002 1.1523 5 99.99812 0.2256 85.7127 1.1525 6 99.99979 0.0258 85.7141 1.1525 -1- AUG-11-110:12 C ARaN I R SYSTEMS 6124256882 P.04/08 Carbonair Environmental Sy►tams 8640 Monticello Lane Maple Grove, MN 55369 612-425-2992 800-526-4999 Fax: 612-425-6882 Influen NO OF TRAY 1 2 3 5 6 IMP 41101. --------STAT 30-------------- VERSION 2.4 WATER FLOW RATE: 8.0 gpm AIR FLOW RATE: 150.0 cfni WATER TEMPERATURE: 60.0 F AIR -TO -WATER RATIO: 140:1 Conc. for MTBE 31800.0 ppb REMOVAL EFF 57.15624 80.00501 90.32298 95.23697 97.63650 98.82250 EFF CONC ppb 13624.3168 6358.4083 3077.2914 1514.6427 751.5925 374.4461 OFF -GAS CONC ug/1 129.8263 181.7257 205.1622 216.3240 221.7743 224.4682 Influent Conc. for TOTAL VOCs 89330.0 ppb NO OF TRAY 1 2 3 4 5 6 REMOVAL EFF 77.07548 91.92896 96.43507 98.28916 99.15667 99.58057 EFF CONC PPb 20478.4714 7209.8635 3184.5506 1528.2906 753.3447 374.6728 OFF -GAS CONC ug/1 491.7966 586.5724 615.3246 627.1551 632.6904 635.3952 08/11/95 09:11:29 AIR EMISSION 1b/d. 1.7456 2.4435 2.7586 2.9087 2.9820 3.0182 AIR EMISSION lb/d 6.6127 7.8870 8.2736 8.4327 8.5071 8.5435 = STAT Series Sieve Tray Aeration Technology Carbonair's exclusive STAT series represents the best choice for low profile air strippers with design simplicity, flexibility and high performance. In Carbonair's STAT units, the water and air are contacted in step -wise fashion on multiple trays. The water enters at the top and flows across each tray. The air passes upwards through openings in the trays, then bubbles through the water to form "a surface offoam which provides extreme turbulence and excellent volatilization. Since the water in Carbonair's STAT units flows horizontally across each tray, the traveling path length of water and the required removal efficiency can be achieved by increasing both the number and length of the trays. Therefore, the STAT units provide much lower tower height than the conventional packed towers. Another advantage of Carbonair's STAT units is that air and blower power consumption are effectively utilized since a single air stream passes through every tray before exiting the tower. As a result of minimal air flows, the organic contaminants are concentrated and effectively removed by vapor phase carbon. Low tower height yields numer- ous other advantages: rapid installation, easy winterization, inconspicuous appearance, easy shipping and easy maintenance. The STAT unit also re- duces the potential for fouling since it contains no packing media and provides an extreme turbulent condition. Carbonair's STAT units are avail- able with a number of plate configura- tions, blowers and controls, and can achieve removal efficiency up to 99.99%. OPTIONS Explosion -proof controls. Discharge pump. Well control. Off -gas carbon. Humidity control. Carbon polish. Winterized enclosure. FEATURES The low air flow and minimal tower height make the unit ideal for off -gas treatment. The compact unit can be installed in a few hours. Controls include motor starter, level switch, air pressure gauge and air pressure switch. Panel comes with blower, manual -off - automatic switch and alarm lights. Computer modeling customizes the system for optimum air flow, number and size of trays. SPECIFICATIONS Listed on other side. :CARBONAIR °Treatment CARBONAIR ENVIRONMENTAL SERVICES 8640 Monticello Lane Maple Grove, MN 55369-4547 612-425-2992 800-526-4999 Fax 612-425-6882 STAT SPECIFICATIONS STAT MODEL 15 30 80 180 *For 6-Tray unit TRAY TRAY LENGTH WIDTH (ft-) (ft.) 2 3 4 6 0.75 1 2 3 HEIGHT PER STAGE (in.) 10 10 10 10 SUMP HEIGHT 22 24 24 24 BENZENE REMOVAL EFFICIENCY AT 55 F Predicted by Computer Modeling (Graphs show removal efficiency at minimum air flow rates. At maximum air flow rates, efficiency is slightly improved.) 50 F 5 TRAYS€ 8 TRA3SF D 4 TRAYS( C 3 TRAYSimm 2 TRAYS w A ; TRAY 25 STAT VJ (60 CPO A WATER mow RATE (GPM) F G TRAYS E 5 TRAYS C 2 TRaYA 13 2 Tf4AYs A % TRAY STAT 80 (300 CFM) 'J ra WATER E1..OW RATE €(G1111 E C DEMISTER HEIGHT (in,) 9.5 10.5 11.5 12.0 205 MAXIMUM HEIGHT (In.)* 93 96 97 98 F R TRAYS E 5 TRAYS & 4 TRAYS C T TRA53 343 2 TRAYS LIQUID FLOW (gpm) 0.5-15 1-40 5-100 10-200 MINIMUM AIR FLOW (cfm) 60 100 300 650 2 20 25 WATER FS,.OW' RATE (GPM) STAT 180 (650 CFM) MAXIMUM AIR FLOW (cfm) 80 150 350 700 55 4b 'NAlE,t [LOY4 RAT. ( t{�14wo,P A PRINTED ON RECYCLED PAPER Product Date Sheet EE198A-9J 1994 by Cartbuhatr 0 6 D.. AIR OUTLFT O.D. BLOW AIR INLET EFFLUENT FLANGE_ NOTE Adiuc over fl neigh by 10 for each d rt Irafl n flange on the same sid effluent INFLUENT Fi tray added or deleted- dd number or trays. :..es Bray 567 05 . i6 -1994 STAT 30 W/ OPTIONAL KITS EXHAUST AIR AIR TEMPERATURE KIT AIR FL❑W KIT (OPTI❑NAL) U (OPTI❑NAL) BL❑WER MUFFLER (OPTI❑NAL) FL❑W METER KIT (0PTI❑NAL) ATER TEMPERATURE KIT (DPTI❑NAL) SAMPLE TAP KIT (DPTI❑NAL) SIGHT GLASS KIT PUMP D❑WN KIT (STD W/ GRAVITY DRAIN SUMP) (DPTI❑NAL) LEVEL C❑NTR❑L KIT (STD W/ PUMP DOWN SUMP) Sales Drawing # 133445 94.05.20 0 CARBQNAIR 1994 APPENDIX T PUMP AND G NULAR ACTIVATED CARBON AD ORPTIONI. SPECIFICATIONS CARBON CONSUMPTION CALCULATIONS AMOCO STATION 4479 RAND LPH ROAD C ARLO NC DESIGN i ARAMTERS Liquid Flow Ra#a () Carbon Density (L)) Idirtiadum Retardation Vessel Diarriat* (d) Vassal Cross a#i aI Arsa Carbon Volume Carbon Weight (Wt) Hydrosarbore(e) of coo ofo Organic Loading Rate influent Concenhation II= LIQUID LOADING RATE (QC) CONTACT OR RETENTION TIME (TR) P 23 Ibe/ou.it 7 minutes 24 inches 3.14 sq. ft. 14.2 400 Ibs. (V ) STE ( Q.12 lbs./lb Carbon 1 ppb TR Vol / t *7.43Sal/ a=ft TR = 1 S ntlnutes; 14" ESTIMATED CARBON CONSUMPTION RATE (Cr) Cr = Q * (Infiu ' t Cone' Cr= V. CARBON BED LIFE EXPECTENCY fed Life (days = Wt / Cr Sed Llfe (days = 4 J 1 REFERENCES lb/day ding Artietmart Petrolau Intitute (IS ). Treatment T logy for R oval: of Dleeol ad aecipine Com om Ground tva Publication #4 99 of Dissolved Gasoline CARBON CONSUMPTION I CALCULATIONS AMG G STATION 57 4475 RANDOLPH ROAD CHARLOTTE, NC DESIGN PARASITE II. LIGUI Liquid Flo Rate (0) Garb on Minimum Vessel Ulan Vessel Gro Carbon Volume (VoI Carbon Weight (Wt) Hydrocarbon( of Organic Loading Rate Influent Concentration LOADING RATE cot) Fn Pm t 7 minutes 4 Inches 4 aq. ft 14.2 cu. f. 400 lbs. (V x ST.. 0.12 I a.71h Garton 57530 deb GSA preedag ft. = 2; CONTACT OR RETENTION TIME i1 TR T Vo TR a IV. ESTIMATED CARBON CON UM TION RATE ( r) V. CARGN BEG LIFE E7tPEGTENG' REFERENCE *7. 1 lnuts nfluant Gone trstlon } (t rganic Loading Rate) (days = Wt Cr (days Ihid y n Petrol;m Institute (1 }, Treatment Technology for Removal . Publication 44369. SPECIAL PRODUCT PRESENTATION RAN J11AR ACTIVATED CARBON ADSORBER GRANULAR AC i ancla ATEB CARBON ADSORBERS In order to meet the demand for more cost effective GACA Vessels that will rernain impervious to a wider range of water chemistry, Handex is introducing a new line of GACA's. The outer shell of the vessels are an epoxy/fiberglass laminate for strength, over a vinylester liner for superior chemical resistance. Besides the aforementioned, the fiberglass vessels also offer a weight advantage as can be seen in the design specifications (below). All vessels have a design rating of 150 psig. In order to best fit the site specific application, there are four sizes available which range from 5 to 65 gpm in flow capacity. (See table below for further model description.) The vessels include the internals which consist of an inlet screen mounted in the top, as well as a hub and screened laterals allowing for bottom discharge. This system will also accommodate backwashing the vessels.. The internals are made up of polypropylene with injection molded glass filled ABS adapters. DESSGH SPEC CADS HCAS 14 HCA35 13CA6S 64.0 71.4 72.0 72,0 CAPACITY/ ra L, (WEIGHT) 44Frr124 LES 143 F /400 LBS VESSEL ONLY 160 LBS w 5 GPM 15 GPM 47A L S 3SGPM fx.3GPM LSAT PSIG 154 PSIG a Weight of carbon based as carbon denrit7 of 18'lbtre RO Supplied with the vessels are fiberglass -injection molded bases. The bases are provided with a hole to accommodate the underdrain pipe. The normal operation is a down flow process. Contaminated water enters the top of the vessel through the inlet screen and exits the bottom through screened laterals radiating off a common hub. The underdrain system is designed to maintain a flow pattern, such that channelling Ls eliminated and all carbon is used to urn effectiveness. The underdrain laterals are made of polypropylene with openings sized to retain 100% of the carbon and to maintain. proper velocities and pressure drop, based on an application rate of 5 gpm/ft2. The vessels can stand alone or in a parallel con€iguration. The face piping can be simplified using hoses and quick disconnects to allow backwash and lead vessel changeover. �r NPE Close Coupled Pump Major Components: Materials of Construction Samba Cerrada Acoplada NPE Componentes Principales: Materiales de Construccion 349 347 370 513 • 412B 408 371 Item No., Description, Materials, Parte No. Descripcian Materiales 184 108 383 123 100 Caslng, Catcasa 101 t.mpeller, Impkilsor 108 Motor adapter, Adaptader del motor AISI 304 SS, AISI 304 Acero inoxidable 108A Motor ada.pler seal vent/flesh, Sello valvulalcnorro del adaotador del motor 123 Detlector, Deflector BLINA-N 184 Seal housing, Alniamiento del sello 184 A Seal housing seal went/Push, Sello yalvulatchorro del aloiamiento del sello 347 Guidevane, Ditusor 349 0-ring, guideyane, Anillo '0', ditosor 370 Socket head screws, casing: Encajes cabezas de laminas, carcasa 371 Bolts, motor, Tornillos, motor 383 Mechanical seal, Sella mecanico 408 Drain and yent plug, casing, Enchules de drenale y valvula, carc.asa 4129 0ong drain and 'vent pluq, enchuk de Oren* y valvula 513 0-ring, c2sing; Aniflo '0', CarC3Sii. Motor NEMA standard, 503 flange, Motor NEMA estandar, b6da 503 AISI 304 SS, AISI 304 Amro inoxidable Viton AISI 430 SS, AISI 430 Acero inoxidable Plated sleet, Acero chapeado "see &all, ver labIa AISI 304 SS, AISI 304 Acero inoxidable Viton 1 4A 108A Seal Face Vent/Flush Option, OpciOn Cara del Sello V,jlvirlalChorro G Per ormance Curves — 6i© Hz, 3500 RPM de Funcionam"rente — 60 Hz, 3500RP METERS E METRES P 4 lode l r PE / 1ST Size rra� PM 35i Curve (Curva) CN Impeller Sfecfrons for OUP Motors Setecciorres del tmpulsor para Motores OOP NOTE: Not recomrnerrded tar operation beyond printed H-0 curve NOTA: No se recornienda para luncionatniento super' i r pry en Ta curva H-©. u 0 10 CAPACITY (CAPACIDAU) del NPE / 1ST Size {TamaFio)1 x 1/.O impeller Selections for T'EFC & Exp. Proof Motors RPM 3500 Curve (Curve) CNt3231R01 Sotertciones del impulsor para Motores TEFC & Exp. P E: Not recommended Ear opera! ed H-0 curve. TA No se fedornienda para fund fa Curv3 H-©, 2ri 30 4(1 54 00 70 5 rnAr 10 CAPACITY iCAPACI©AU 15 rrUtr C R Ordering Code, imp. C©digo de Pedido k1ia, E 4?/i e 4d✓4 546 534 6 A A Ordering Code, C©digo de Pedido 4t/ spec. 4'/1s 53/4 6 APPENDIX L. PARTICULATE ALT P t T1 e OUSifl4S DU TRIAL Q ALIT Division of Mechanical Mfg, Corporation MODEL NS-112 TOP VEEN TYPE 30.4 STAINLESS /4"NPT Vent Port / 1/4" NPT Upstream ----Gauge Port Handle 1.14 NPT Downstream Gauge Port 1/4NPT l,.,,':!tream 1 SiDE VIEW Gauge ,`"7 Zr' It ir-, Hand 1/4PT Vent I Port I ' I , ; - il N 1/4" NPT 1 - 1 DoNnstrearn Gauge Port Adjustabl Stand 3/4-NPT Drain Port OCTEL NS-11 2" NCYT- CONNECTION 1 5 V.11, " NPT nlet NPT Outlet Description Model NS-112 Bag Filter Housing in T-304 Stainless Steel at 150psi(250°F). Vessel uses a #1 size filter bag (rdia.x 16" long). Liquid flow is from the inside of the filter bag to the outside. The support basket and filter bag are securely locked into a recess at the top of the overflow rim, providing a 360 degree positive compression seal. Since the filter bag is locked in at the top of the vessel, all of the dirt is trapped inside the bag. The filter vessel never requires cleaning after use. Specifications Maximum Working Pressure 150psi Maximum Working Temperature 250°F Maximum Water Flow 110gpm (does not include a filter bag) Maximum Support Basket Differential Operating Pressure 75psi Hydrostatically Tested to 250psi Inlet & Outlet: 2" NPT Shipping Weight: 85 lbs. Standard Features Model NS-112, type 304 stainless steel, glass bead finish: exterior, interior and basket Model NC-112, carbon steel, one coat shop primer exterior Over -The -Top Inlet 360° Hinged Closure with Lid Handle Lid Safety Detents and Lid Stop Investment Casting (Lid & Body) Perforated T-316 S/S Support Basket with Longitudinal Taper Gauge Ports (Upstream &Downstream) 1/4" NPT Vent Port 1/4" NPT Drain Port 3/4' NPT Buna-N 0-Rings Plated Carbon Steel Hardware - Bar Knobs Adjustable Stainless Tripod Stand (NS-112 Adjustable Carbon Steel Tripod Stand (NC-112) Options Modified Connections - Flanged, Threaded or Sanitary Interior Grade Finishes (Including 3A Sanitary) Electropolish Finishes - Exterior, Interior or Both Micron -Rated Strainer Baskets Mesh & Micron Lined Baskets Assorted 0-Ring Materials Steam & Hot Oil Jackets Low -Profile Horizontal Outlets Cartridge Contaminant Chambers (holds four 10' cartridges) Drain Valves & Vent Valves Pressure Gauges Available in Carbon Steel (Model NC-112) at 150psi (250°F) 14" 20* 143' 85 INGERSOLL-RAND® AIR COMPRESSORS PERFORMANCE DATA AND DIMENSIONS DISPL RCVR RCVR MODEL BARE HP CFM SIZE CONFIG LENGTH WIDTH HEIGHT WEIGHT 234C1.5 234 1.5 6,5 60 Horizontal 51,25 22.81 40.25 337 234N1.5 1.5 6.5 80 Vertical 35,7,5 18.31 67.13 422 234C2 234 2 9.0 60 Horizontal _ 51.25 22,81 40,25 344 ... _ _ , . - 234N2 234 2 9.0 80 Vertical 35.75 18.31 67.13 429 234C3 234 3 11.4 6.0 Horizontal 234D3 234 3 11.4 80 Horizontal 234N3 234 3 11.4 0 Ventio 24205 242N5 242F6T 254005 2540D7.5 2540N7,5 2540E7.5 2540 7,5 32,8 120 2540VE7„5 2540 7.5 32,8 120 2540D10 2540 10 41. 2540N10 2540 10 41.8 242 5 19,7 19,7 80 242 5 242 GAS) 20 0 30 Horizofltal 4315 24.0 44 75 2540 5 19,9 80 Horizontal 67.3129.00 46 96 680 2540 7,5 32 8 80 Horizontal 67.31 29,00 46.96 724 Vertical 41 75 29.00 73.63 724 1.25 22.81 40 25 362 67.00 22,81 41 00 447 2540E10 2540VE10 7100010 7100E10 2540 7.5 32.8 80 35.75 18.31 67,13 447 67.00 22.81 43,38 521 6,14 21,69 69.13 521 Horizwital 71,34 29.00 51.75 2540 10 41 8 120 2540 10 413 120 7100 7100 10 44,0 120 Ver,ical 41.75 31.45 76,75 500 874 874 67.31 29.00 46.96 736 Vertical 41.75 29.00 73.63 736 Horizontal 71.34 29.00 51.75 Ventical 41,75 31,45 76,75 44.0 80 Horizontal 66,59 27.31 52.00 935 71 34 27.31 56.75 1085 Horizontal Verrical Receirer--Mounted Units 886 886 1-93 Section 3-2