EPA v. Chaparral Energy LLC

Case summary

On June 19, 2015, EPA Region 6 finalized it February 5, 2015, Amended Administrative Order under its authority pursuant to Section 1423 of the Safe Drinking Water Act to Chaparral Energy, LLC located in Oklahoma City, Oklahoma. The Amended PAO requires Respondent shall monitor Well Nos. 23-08, 24-05, 23-23 and WM-12 in accordance with Part I.G.1 of the permit b) If indication of contaminates are present at any time during operation due to injection operations Respondent is required to notify EPA on the next business day. c) Respondent shall conduct monthly groundwater monitoring and sampling until such time the EPA determines injection operations are no longer a threat to USDWs. This Final Amended Order supersedes the Original Order.

Defendants (1)

• Chaparral Energy Resources, LLCNamed in complaintNamed in settlement

Facilities (7)

• OS6273005 - WELL NO. 23-W41 (A)

  NW/4, SEC. 14, T27N, R 5E, SHIDLER, OK, 74652

  Registry ID: 110062627117

• OS6273019 - WELL NO. 31-W42 (A)

  SW/4, SEC. 14, T27N, R 5E, SHIDLER, OK, 74652

  Registry ID: 110062627144

• OS6273004 - WELL NO. 23-W28 (A)

  NW/4, SEC. 14, T27N, R 5E, SHIDLER, OK, 74652

  Registry ID: 110062627073

• OS6273039 - WELL NO. 32-W25 (A)

  NW/4, SEC. 14, T27N, R 5E, SHIDLER, OK, 74652

  Registry ID: 110062627153

• OS6273002 - WELL NO. 23-W23 (A)

  NW/4, SEC. 14, T27N, R 5E, SHIDLER, OK, 74652

  Registry ID: 110062627135

• OS6273006 - WELL NO. 24-W21 (A)

  NE/4, SEC. 14, T27N, R 5E, SHIDLER, OK, 74652

  Registry ID: 110055483846

• OS6273009 - WELL NO. 24-W41 (A)

  NW/4, SEC. 14, T27N, R 5E, SHIDLER, OK, 74652

  Registry ID: 110062627126

Statutes cited

• SDWA 1422/1423 — UIC Regulations Classes I - V
• SDWA 1423C — UIC - Violation of 1423(c) AO
• SDWA 1421 — UIC Regulations

Enforcement conclusions (1)

• Chaparral Energy LLCentered 2015-06-19

  Primary law: SDWA

Timeline (6 milestones)

• 2014-12-05Complaint Filed/Proposed Order
• 2015-02-15Amended Administrative Order
• 2015-06-19Enforcement Action Data Entered
• 2015-06-19Final Order Issued
• 2016-01-15Compliance Achieved
• 2016-01-29Enforcement Action Closed