water pollution

Farm bureau crows about water quality progress; nutrient reduction report stats show otherwise

The Iowa Farm Bureau unleashed its public relations machine after release of the 2018-19 Nutrient Reduction Strategy (NRS) Report July 2, heralding what it called "clear and significant strides" on reducing nitrogen and phosphorus leaching from farms fields into state streams, rivers and lakes.

Problem is the farm bureau either failed to read the report statistics on nitrogen and phosphorus runoff, or simply chose to ignore the research results and spin the findings.

526,000 tons of nitrates 'exported' into Iowa rivers and streams in 2016; improved monitoring network providing better tracking of farm chemical runoff

An estimated 526,000 tons of nitrates were "exported" into Iowa rivers and streams in 2016, eventually flowing down the Mississippi River to the Gulf of Mexico and adding to the so-called "dead zone" where fish cannot survive.

According to the Annual Progress Report of the Iowa Nutrient Reduction Strategy (NRS) group released last week (12/12), more than 29 pounds of nitrogen from each of Iowa's 35.75 million acres of crop land ended up in state waterways.

Public input on Alcoa water permit change extended after some initial notices had wording mix-up

The public will now have until the end of September to comment on Alcoa's request to increase by 24 percent the amount of oil/grease, chromium, zinc, cyanide and other suspended solids it is allowed to discharge into the Mississippi River each month.

The higher volumes of chemicals contained in wastewater from the Riverdale plant are generated by the recently completed expansion of the facility to serve the automotive aluminum market.

The Iowa Department of Natural Resources (IDNR) ordered the notice be republished because of a mix-up in wording in some of the initial notices. The result was another 30-day period for the public to submit comments on the proposed change. Citizens can submit comments until Sept. 30 by email to: linda.hoehn@alcoa.com, or in writing to the company at 4879 State St., Bettendorf, IA 52722.

Alcoa seeks approval to boost discharge of pollutants into Mississippi River by 24 percent

Alcoa's Davenport Works wants to increase the amount of pollutants it can discharge into the Mississippi River by 24 percent to accommodate higher quantities of oil/grease, chromium, zinc, cyanide and other suspended solids generated by expansion of the Riverdale plant to serve the automotive aluminum market.

The company is seeking modification of its National Pollutant Discharge Elimination System (NPDES) permit issued by the Iowa Department of Natural Resources (IDNR). The permit revisions, if approved, would allow the plant to discharge a combined average of 548 pounds of pollutants each day into the river. That's an average of 106 pounds per day more than the plant's current permitted discharge.

Based on the plant's 312 production days each year, the change would permit the plant to dispose of an additional 33,000 pounds of those pollutants into the river annually.

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