Laws & Regulations

Minor New Source Review Air Permit for Neucor Inc. on the Yakama Reservation

Final NSR air permit for Neucor Inc. on the Yakama Reservation in White Swan, Washington.

Letters initiating Clean Water Act 404(c) review of mining at Pebble deposit

Correspondence between EPA and the Pebble Limited Partnership and the State of Alaska initiating review under section 404(c) of the Clean Water Act of potential adverse environmental effects associated with mining the Pebble deposit in southwest Alaska.

NPDES Permit for Leavenworth National Fish Hatchery in Washington

NPDES permit and associated documents for Leavenworth National Fish Hatchery in Leavenworth, Washington.

NPDES Permit for City of Nezperce Wastewater Treatment Plant in Idaho

EPA's NPDES permit for City of Nezperce wastewater treatment plant in Idaho.

Summary of Grants Pass PM-10 Maintenance Plan

Summary of Grants Pass PM-10 Maintenance Plan under the Oregon air quality State Implementation Plan (SIP).

Vancouver 2nd 10-Year Carbon Monoxide Maintenance Plan Summary

Summary of the Vancouver 2nd 10-year carbon monoxide maintenance plan under the Washington air quality SIP.

Summary of Oakridge PM-10 Attainment Plan

Summary of Oakridge Particulate Matter (PM-10) Attainment Plan under the Oregon air quality State Implementation Plan (SIP).

Non-Title V Air Permits for Knife River Inc. Portable Hot Mix Asphalt Plants

Knife River (Astec, CMI & Gencor) Non-Title V Permits and Technical Support Documents

Lee Ranch Coal Mine - NPDES Permit No. NM0029581

Final Issuance of EPA UIC Class V Injection Well Permits and Aquifer Exemption Expansion – Montalban Oil and Gas Operations, Jody Field 34-1 & 34-2, Pondera County, Montana

Two Underground Injection Control (UIC) Class V Final Permits

Report: Inconsistencies With EPA Policy Identified in Region 10's Biweekly Pay Cap Waiver Process

Report #18-P-0068, January 12, 2018. We identified issues with documentation and review of biweekly pay cap waivers at Region 10, resulting from a lack of an internal policy or process. Region 10 recently issued a new procedure that addresses our concerns.

Report: EPA Has Not Reported to Congress on BEACH Act Progress as Statutorily Required or Fully Documented Budget Decisions

Report #18-P-0071, January 18, 2018. Failure to submit required reports and keep required records limits congressional, public and EPA knowledge about the impact of the agency's BEACH Act program and decisions regarding the use of taxpayer dollars.

Report: Follow-Up Review - EPA Completed OIG Recommendations for Superfund Site in Libby, Montana

Report #18-P-0074, January 24, 2018. The EPA took corrective actions that enabled the Libby toxicity assessment to be completed with transparency and that provided stakeholders with important human exposure information.

Report: EPA Can Better Manage State Pesticide Cooperative Agreements to More Effectively Use Funds and Reduce Risk of Pesticide Misuse

Report #18-P-0079, February 13, 2018. Improvements in developing and monitoring FIFRA compliance inspection work plans support effective and efficient use of enforcement funding and risk management.

Report: EPA Needs to Evaluate the Impact of the Revised Agricultural Worker Protection Standard on Pesticide Exposure Incidents

Report #18-P-0080, February 15, 2018. Revisions to the standard are intended to reduce exposure to pesticides and provide enhanced protection to agricultural workers, pesticide handlers and their families.

Report: EPA Can Achieve Better Value by Complying With Performance-Based Contract Requirements

Report #18-P-0089, February 20, 2018. Over $290 million awarded in performance-based contracts could have been put to better use if the EPA had not granted award terms for less-than-superior service.

Report: Differences in Processing Practices Could Decrease the Reliability of Ozone Data Used for Assessing Air Quality to Protect Public Health

Report #18-P-0105, February 28, 2018. There is a risk that the state, local and tribal agencies that monitor ambient air quality are not always implementing the EPA’s recommended QA practices for validating ozone data.

Report: EPA Did Not Use Allegedly Flawed Studies to Estimate Methane Emissions or Set New Source Performance Standards for Oil and Natural Gas Production

Report #18-P-0129, March 16, 2018. Methane is a potent greenhouse gas emitted from natural and industrial sources, including oil and natural gas production facilities.

Report: EPA's Safe and Sustainable Water Resources Research Program Is Delivering Timely and Relevant Data to the Office of Water

Report #18-P-0151, April 9, 2018. The ORD's SSWR research program delivers timely and relevant research to the OW that is used to protect America’s waters.

Report: EPA Complied With Improper Payments Elimination and Recovery Act Requirements

Report #18-P-0153, April 16, 2018. Through compliance with IPERA, the EPA provides better assurance that efforts are being made to reduce improper payments.