Data and Tools

Clean Water State Revolving Fund (CWSRF) Allotments of Federal Funds to States

Each year Congress appropriates federal funds for the CWSRF program. The tables show the amount of federal funds received by, or allotted to, each state.

Brownfields in EPA Region 6

EPA Region 6 (South Central) Brownfields

Supplemental Data for Six-Year Review 3

These following supplemental data sources were referred to in the technical support documents for the Six-Year Review 3.

Six-Year Review 2 Contaminant Occurrence Data (1998-2005)

In March 2010, EPA announced the review results for the Agency’s second Six-Year Review. EPA analyzed occurrence data for the Six-Year Review 2 for 69 regulated contaminants, using data provided by 47 states or primacy agencies.

Integrated Water Analysis Tools

Integrated water analysis tools offer a wide spectrum of valuable information into a single interface. A few of these tools are applications that are geared for the public.

Water Utility Response On The Go Plus

A mobile-friendly tool designed for water utilities responding to emergency incidents.

Strategy Examples of Elevated Temperature Landfills

Elevated temperature landfills (ETLFs) are MSW landfills that exhibit temperatures above regulatory thresholds due to abnormal chemical reactions within the waste mass. This page contains a list of examples of ETLFs and the strategies to address them.

Enhancing Nutrient Reduction Efforts with the National Nutrient Inventory Training Webinar Archive

This EPA Tools & Resources Training webinar showcased EPA’s National Nutrient Inventory Research Portfolio.

Detection and Forecasting of Harmful Algal Blooms Webinar Archive

This EPA Tools & Resources webinar, recorded on April 16, 2025, presented two EPA research efforts related to detecting and forecasting cyanobacterial harmful algal blooms (cyanoHABs).

GeoPlatform Stormwater BMP Performance Database

This database shows information on how well certain Best Management Practices (BMPs) and Low Impact Development (LID) approaches control stormwater runoff in different parts of the U.S.

Laboratory Services and Applied Science Division Operating Procedure for Internal Audits

Field Branches Quality System and Technical Procedures

MARPLOT Software

Part of the CAMEO suite, MARPLOT® is a mapping application that people can use to quickly create, view, and modify maps. Users can create their own objects in MARPLOT (e.g., facilities, schools, response assets) and display them on top of a basemap.

CAMEO Chemicals Software

CAMEO Chemicals is an extensive chemical database, available for download, with critical response information for thousands of chemicals, and a tool that tells you what reactions might occur if chemicals were mixed together.

Lead Renovation/Abatement Firm Certification Application or Update

Page for firms to identify the what they will be doing in the CDX application

San Francisco Bay Area - Map Tool to Identify Interim Pesticide Use Limitations

This will display the San Francisco Bay Area - Interim Pesticide Use Limitations interactive mapper.

Office of Acquisition Solutions (OAS) Online FOIA Survey

grid test of form

Laws and Regulations

Laws and Statues page

Timeline of Nitrogen Dioxide (NO2) National Ambient Air Quality Standards (NAAQS)

See the history of limits to the level of nitrogen dioxide (NO2) in ambient air, set through the NAAQS review and rulemaking process under the Clean Air Act. This includes both primary and secondary standards.