Collections and Lists

Oklahoma NPDES Permits

NPDES water permits issued in Oklahoma.

Choctaw Nation of Oklahoma WWTP - NPDES Permit No. OK0046087

State Authorization Rule Checklists 125 through 134 for Hazardous Waste Rulemakings Published Between July 1993 and June 1994

Rules, checklists, summaries and Federal Register Notice links related to State Program Advisory 35 between July 1993 and June 1994.

Kickapoo Casino Harrah WWTP - NPDES Permit No. OK0044733

State Authorization Rule Checklists 135 through 144 for Hazardous Waste Rulemakings Published Between July 1994 and June 1995

Rules, checklists, summaries and Federal Register Notice links related to State Program Advisory 35 between July 1994 and June 1995.

State Authorization Rule Checklists 80 through 91 for Hazardous Waste Rulemakings Published between July 1990 and June 1991

Rules, checklists, summaries and Federal Register Notice links related to State Program Advisory 35 between July 1990 and June 1991.

Region 9 Publications and Successes

Publications & Success Stories - Region 9

Regulatory and Guidance Information by Topic: Air

Environmental Regulatory information for air topics, including indoor air, mold, radiation, acid rain, ozone, particulate matter, vehicles, engines and fuels.

Participatory Science Tribal Projects

This page will highlight tribal participatory science projects throughout the regions that EPA has been involved in. There will be links to more resources, EPA's story map, and how to get involved in more tribal citizen science projects and opportunities.

Frequently Asked Questions for Participatory Science

This is a frequently asked questions page for participatory science and includes common questions and answers with links to helpful resources.

Resources

This will serve as a landing page for the child links under Resources in the sidebar navigation menu.

Targeted Airshed Grant Recipients

Table of previous Targeted Airshed Grant recipients

Letters of Recommendations to the EPA Administrator from the NDWAC

The NDWAC makes recommendations to the EPA Administrator on a number of safe drinking water issues.

Task Force Members

This website lists all of the current Hypoxia Task Force members.

Parker Street Waste Site

EPA conducted sampling and other response actions at Parker Street Waste Site according to its authority under Secton 104 of the Comprehensive Environmental Response, Compensaton, and Liability Act (CERCLA).

San Fernando Valley Superfund Sites Story Map

EPA Region 9's StoryMap collection describes the four San Fernando Valley Superfund site histories and upcoming remedial activities.

Substitutes in chillers

Chillers typically cool water, which is then circulated to provide comfort cooling throughout a building or other location. Chillers can be classified by compressor type, including centrifugal, reciprocating, screw, and scroll.

TRI Metal Mining Information

Background information on issues relevant to the possible modification of TRI reporting requirements for metal mining facilities.

Drinking Water Models, Tools, and Methods

Comprehensive list of models, tools, and analytical methods for drinking water.

2011 Federal Electronics Challenge Award Winners, 4/1/2012

Lists the winners of the platinum, gold, silver, bronze and Champion awards.