Official websites use .gov
A .gov website belongs to an official government organization in the United States.

Secure .gov websites use HTTPS
A lock () or https:// means you’ve safely connected to the .gov website. Share sensitive information only on official, secure websites.

JavaScript appears to be disabled on this computer. Please click here to see any active alerts.

Innovative TMDLs using Impervious Cover

Three states in EPA Region 1 have developed TMDLs using impervious cover and flow as surrogates for stormwater-source pollutants in streams listed for biological impairment.

Barberry Creek, Maine, Total Maximum Daily Load (pdf)
A Total Maximum Daily Load Analysis for Eagleville Brook, Mansfield, Connecticut (pdf)