Laws & Regulations

NPDES Permits in EPA’s Pacific Southwest (Region 9)

EPA's Pacific Southwest (Region 9) issues NPDES permits for wastewater, industrial, and stormwater discharges on Tribal lands in Arizona, California, Nevada, and Navajo Nation Lands, Guam, American Samoa, CNMI, and any discharges into federal ocean waters.

Water Quality Trading Technical Resources

A collection of resources detailing the basics and policy of water quality trading.

Under the RRP Rule, in exterior containment if a large tree or shrub is within the work area can the plastic be placed around the base and would the plant, however large, also need to be covered?

Answer: The RRP Rule does not specifically address containment of trees or shrubs, but if dust, debris, or residue remains in the tree or shrub at the conclusion of the job, the site will not pass visual inspection. The work practices for exterior projects are based on a performance standard…

Last published: March 9, 2026

Texas SIP: 30 TAC 115.160-115.169: Batch Processes; SIP effective 2008.03.28 TXd89 to 2009.09.07

UIC-09-2023-0032: Extra Space Management Inc. and Kaloko Storage (18) HI LLC, Kailua-Kona, HI; Consent Agreement and Proposed Final Order

Consent Agreement and Proposed Final Order between the EPA Region 9 and Extra Space Management, Inc. and Kaloko Storage (18) HI LLC to resolve a civil administrative proceeding under Sections 1423(c)(3)(B) of the Safe Drinking Water Act.

UIC-09-2023-0006: Consent Agreement and Proposed Final Order; SC Kona Self Storage LP, Kailua-Kona, HI

Consent Agreement and Proposed Final Order between the EPA Region 9 and SC Kona Self Storage LP to resolve civil administrative proceeding under Sections 1423(c)(3)(B) of the Safe Drinking Water Act. EPA Docket No. UIC-09-2023-0006.

UIC-09-2023-0016: Consent Agreement and Final Order; EAN Holdings LLC, Hilo, HI

Consent Agreement and (Proposed) Final Order between EPA and EAN Holdings LLC to resolve a civil administrative proceeding under Sections 1423(c)(3)(B) of the Safe Drinking Water Act (SDWA). Docket No. UIC-09-2023-0016.

Texas SIP: 30 TAC 116.160-116.163. Prevention of Significant Deterioration Review, SIP effective May 19, 2009 (TXd101)

Texas SIP: 30 TAC 116.160-116.163. Prevention of Significant Deterioration Review; SIP effective 2009-05-19

UIC-09-2023-0002: American Savings Bank (Kealakekua Branch); Consent Agreement and Final Order

Consent Agreement and Final Order ("CAFO") between the U.S. Environmental Protection Agency, Region 9 (“EPA”) and American Savings Bank (Kealakekua Branch). DOCKET NO. UIC-09-2023-0002.

UIC-09-2022-0062: State of Hawaiʻi Department of Land and Natural Resources; Consent Agreement and Final Order

Proposed CAFO between EPA Region 9 and State of Hawaiʻi, Department of Land and Natural Resources to resolve a civil administrative proceeding under Sections 1423(c)(3)(B) of the Safe Drinking Water Act.

UIC-09-2024-0041: Walter A. Taylor Associates Inc, Kula, Maui, HI; Proposed Consent Agreement

Consent Agreement and Proposed Final Order in the matter of Walter A. Taylor Associates Inc., Kula, Maui, Hawai'i. Docket No. UIC-09-2024-0041.

UIC-09-2024-0031: Elk Hills, LLC and California Resources Corporation, Tupman, CA; Consent Agreement and Proposed Final Order

Consent Agreement and Proposed Final Order in the Matter of Elk Hills, LLC and California Resources Corporation. Docket Number UIC-09-2024-0031. UIC Permit Number R9UIC-CA5-FY20.

UIC-09-2023-0029: Administrative Complaint In the Matter of Eric Hauck, Individually and as Trustee of the Acton Holding Trust

Administrative Complaint In the Matter of Eric Hauck, Individually and as Trustee of the Acton Holding Trust - Docket No. UIC-09-2023-0029.

UIC-09-2023-0020: Imperial Irrigation District; El Centro Generating Station, El Centro, CA

Proposed Settlement of Safe Drinking Water Act (SDWA) Administrative Penalty and Consent Agreement and Final Order (CAFO) in the matter of Imperial Irrigation District – El Centro Generating Station, El Centro, CA. EPA Docket No. UIC-09-2023-0020.

UIC-09-2022-0047: Bakersfield Renewable Fuels LLC, Bakersfield, CA; Consent Agreement and Final Order

Consent Agreement and Final Order In the Matter of Bakersfield Renewable Fuels, LLC, Bakersfield, California, EPA Docket Number UIC-09-2022-0047.

I am an owner/agent for an apartment community built prior to 1978. In 2004, testing of a random sample of units was completed by a certified testing firm. The results were negative for lead paint but positive for lead dust. With the positive lead dust result, are we required to comply with the RRP Rule?

No. As long as the determination that the units are free of lead-based paint was made by an inspector or risk assessor certified by EPA or by an authorized state or Tribal program, renovations in the building are not covered by the RRP Rule. Question Number: 23002-18015 Find a printable…

Last published: March 9, 2026

UIC-09-2020-0051: SMS Briners, Stockton, CA; Consent Agreement and [Proposed] Final Order

Consent Agreement and [Proposed] Final Order In the Matter of SMS Briners, Inc., Stockton, California.

UIC-09-2010-0006: Jazmin Family Trust; Consent Agreement and Final Order

Consent Agreement and Final Order ("CAFO") between the U.S. Environmental Protection Agency, Region 9 (“EPA”) and Jose P. Jazmin and Betty Jazmin, Trustees of the Jazmin Family Trust. Docket No.UIC-09-2010-0006.

UIC-AO-2005-0014: County of Hawaii Department of Environmental Management, Hilo, HI; Consent Agreement and Final Order (2006)

Consent Agreement and Final Order ("CAFO") between the U.S. Environmental Protection Agency, Region 9 (“EPA”) and County of Hawaii Department of Environmental Management, Hilo, Hawaii. Docket No. UIC-AO-2005-0014.

NEPA Comments: Delta-Mendota Canal Recirculation Project

Documents related to EPA Correspondence with State and Federal Agencies concerning the Delta-Mendota Canal and California Aqueduct Intertie.