Document 542MEEG2q6a4gJKK4QN7k4bD

Region 6 Compliance Assurance and Enforcement Division INSPECTION REPORT Inspection Date(s): Media: Regulatory Program(s) 12/06/2017 Water Brine - CWA Company Name: Facility Name: Facility Physical Location: (city, state, zip code) Mailing address: (city, state, zip code) County/Parish: Facility Contact: Warren American Oil Company, LLC Chapman Lease 36.846708 N, -96.5006 W (SE Sec. 1, T 27N, R 7E) Pawhuska, Oklahoma 74056 6585 South Yale Ave., Suite 800 Tulsa, Oklahoma 74147 Osage County John Burroughs (918) 481-7900 FRS Number: Identification/Permit Number: Media Number: NAICS: SIC: N/A OKU000862 N/A 21111 1311 Personnel participating in inspection: Kent W. Sanborn 6EN-WR Environmental Engineer (918) 557 - 1615 EPA Lead Inspector Signature/Date Supervisor Signature/Date Sanborn, Kent Digitally signed by Sanborn, Kent DN: cn=Sanborn, Kent, email=Sanborn.Kent@epa.gov Date: 2018.01.23 12:41:45 -06'00' Kent W. Sanborn Date JERRY SAUNDERS Digitally signed by JERRY SAUNDERS DN: c=US, o=U.S. Government, ou=USEPA, ou=Staff, cn=JERRY SAUNDERS, dnQualifier=0000011249 Date: 2018.01.25 12:11:25 -06'00' Jerry Saunders Date 6ENFORM-019-R7 (2/15/2017) 1 Section I - INTRODUCTION PURPOSE OF THE INSPECTION Warren American Oil Company, LLC / Chapman Lease Inspection Date: 12/06/2017 EPA Region 6 inspector K.W. Sanborn visited the Warren American Oil Company, LLC oil and gas facility located at the latitude 36.846708 N and longitude -96.5006 W near Pawhuska, Oklahoma on 12/06/2017 for an unannounced inspection. The inspection was conducted by authority of the Clean Water Act to determine compliance with the Environmental Protection Agency (EPA) regulations. FACILITY DESCRIPTION The facility was known as the Chapman tank battery and has EPA identification number: OKU000862. Section II - OBSERVATIONS I conducted a follow up inspection at a recent discharge site on a tributary of North Bird Creek. With a calibrated YSI 30 Pro Conductivity Meter I measured the Total Dissolved Solids (TDS) in the tributary. The highest TDS readings were measured near the original source of the discharge and were 9,500 mg/L in dug hole. TDS values in the tributary ranged from 900 mg/L to 1,300 mg/L. I observed that flow in the tributary had not reached the south fence. I observed ongoing remediation activities. Section III - AREAS OF CONCERN Elevated TDS levels in the tributary. Section IV - FOLLOW UP Conduct follow up inspections as needed. Section V - LIST OF APPENDICES N/A 2