In Midwest, states mixed on need for new water quality standards

A push in Iowa by environmental groups to establish new state water quality standards ended in defeat this fall. In a unanimous vote, the Iowa Environmental Protection Commission rejected a proposal to create numeric standards for nitrogen and phosphorus pollution. The Sioux City Journal reports that state officials want more time to study the efficacy of current nutrient-reduction strategies before implementing any new rules.

Across the Midwest, concerns about nutrient pollution have increased due to a rise in harmful algal blooms, which can create “dead zones” in water bodies and force the closure of beaches due to health concerns. For more than a decade, the U.S. Environmental Protection Agency has encouraged states to set science-based numeric standards to control how much nitrogen and phosphorus is discharged into the nation’s water bodies.

Illinois, Nebraska, Minnesota and Wisconsin already have numeric standards in place. Wisconsin has the region’s most comprehensive standards; they apply to discharges of phosphorus into lakes, reservoirs, rivers and streams. According to the EPA, Indiana and Ohio are scheduled to have numeric standards by 2016. Ohio’s standards will be among the most comprehensive in the nation.

Stateline Midwest ~ November 20131.73 MB