Water Quality and Conservation Practices

Iowa's Section 303(d) Impaired Waters Listings

Under Section 303(d) of the Clean Water Act, states are required from "time to time" to submit a list of waters for which effluent limits will not be sufficient to meet all state water quality standards. EPA has defined "time to time" to mean April 1 of even numbered years. The failure to meet water quality standards might be due to an individual pollutant, multiple pollutants, "pollution," or an unknown cause of impairment. The 303(d) listing process includes waters impaired by point sources and non-point sources of pollutants.

Landowner's Toolbox - Drake Law Center

The Video Library covers topics including land tenure and stewardship policy in Iowa, leasing to new farmers, conservation easements, woodlot management, and more. The video above provides an introduction to the tools available on this website. The Landowner's Guide to Sustainable Farm Leasing - This guide is meant to introduce landowners to the principle issues regarding the use of a lease agreement to promote a sustainable farm operation.

Iowa Source Water Protection Program

Source Water is a lake, stream, river or aquifer where drinking water is obtained. Source Water Protection (SWP) is the act of preventing contaminants from entering public drinking water sources. SWP includes both ground water (wellhead) protection and surface water protection. The IDNR SWP Program is a voluntary program and is divided into Targeted and Non-Targeted programs in order to provide better customer service to our Iowa Community Water Supplies (CWS).

Private Well Testing FAQ

State Hygienic Lab - The University of Iowa Private wells are not subject to federal regulations that apply to public drinking water systems. Therefore, it is up to well owners to regularly monitor the safety of their drinking water to ensure it is safe for human consumption. Public drinking water systems are required by federal regulations to be tested for various contaminants at specific intervals.

Iowa Daily Erosion Project (Version 1)

This project is a collaboration of scientists at Iowa State University, National Soil Erosion Research Lab, National Laboratory for Agriculture and the Environment, and The University of Iowa. The aim is to produce daily estimates of rainfall, runoff, and soil erosion for the state of Iowa. Our work is sponsored by Department of Agronomy's Path to the Future endowment.

Iowa Water Center

Established in 1964, the Iowa Center (IWC) is a federally funded program. Its purposes are to identify research needs and fund selected projects about Iowa’s water quality, water quantity, and the human dimensions of water-resources management, provide outreach and education opportunities to familiarize water-resource professionals, teachers, and students with current research about Iowa’s water resources, disseminate information about Iowa’s water resources to water-resource specialists, teachers, students, policymakers, and the general public.

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