Science & Technology

DonaldsonTechnology—Semi-Active Electric Filter for Non-Road Applications System

This retrofit technology is included on EPA's Verified Technologies List for Clean Diesel.

Johnson Matthey Technology—Continuously Regenerating Technology3 Particulate Filter

This retrofit technology is included on EPA's Verified Technologies List for Clean Diesel.

The National Aquatic Resource Surveys (NARS)

The National Aquatic Resource Surveys (NARS) are statistical surveys designed to assess the status of and changes in quality of the nation’s coastal waters, lakes and reservoirs, rivers and streams, and wetlands.

Urban Waters and the Passaic River/Newark (New Jersey)

Passaic River/Newark (New Jersey) location landing page

Urban Waters and the Los Angeles River Watershed (California)

This page provides background information on the Los Angeles River Watershed Area one of the 18 Designated Urban Waters Locations.

Local Hazard Mitigation Plans

Local Hazard Mitigation Plans (HMPs) for the cities of Phoenix and Tempe and Maricopa County, Arizona. Integrating GI/LID suitable to an arid and semi-arid climate into their 2020 HMPs and flood control documents.

HYSPLIT Trajectory Endpoint Data

Spanish Translation Guide for Pesticide Labeling

Spanish translations of health and safety information for use on pesticide product labels.

Addressing Citizen's Concerns in Oregon

Providing Evidence of Water Quality Improvements in Ohio

Aquatic Life Criteria - Cadmium

Documents pertaining to 2016 Acute and Chronic Aquatic Life Ambient Water Quality Criteria for Cadmium (Freshwater, Estuarine/marine). These documents contain the safe levels of Cadmium in water that should protect to the majority of species.

Five-Year Reviews of EPA’s Recreational Criteria

Documents pertaining to Recreational Human Health Ambient Water Quality Criteria for Microbial Organisms (Pathogens). These documents include safe levels for cyanotoxins microcystin and cylindrospermopsin, and Coliphage to protect human health.

Fact Sheet: Ocean Acidification and Marine pH Water Quality Criteria

Information related to Fact Sheet: Ocean Acidification and Marine pH Water Quality Criteria

Case Studies: Benefits of Using Bioassessment Data During Biocriteria Development

Case Studies: Benefits of using bioassessment data during biocriteria development

Multiple Benefits in a County's Stormwater Control Program

Discovering a Problem in Maine

Aquatic Life Criteria - Methyl Tertiary-Butyl Ether (MTBE)

Information pertaining to the 1999 Acute and Chronic Ambient Aquatic Life Water Quality Criteria for Methyl Tertiary-Butyl Ether (MTBE) for freshwater and salt water. Information includes the safe levels of MTBE that should protect the majority of species.