DNR Seeks Public Comment on Water Quality Standards-
Chloride, Sulfate and Total Dissolved Solids

The DNR is seeking public comments on the proposed rules to establishes 
requirements for the protection and management of Iowa's surface water 
quality.

People can comment orally or in writing on the proposed rules at seven 
public meetings:
- 11:00 a.m. on July 7 in the Orange City Public Library at 112 Albany 
Avenue SE, Orange City, IA
- 6:00 p.m. on July 7 in the Spencer Public Library at 21 E. 3rd Street, 
Spencer, IA

- 1:00 p.m. on July 9 in the fifth floor conference rooms of the Wallace 
State Office Building, 502 East Ninth Street, Des Moines, IA,

- 11:00 a.m. on July 13 in the Dubuque Public Library at 360 W. 11th Street, 
Dubuque, IA
- 6:00 p.m. on July 13 in the Iowa City Public Library at 123 S. Linn 
Street, Iowa City, IA

- 10:00 a.m. on July 15 in the Atlantic Public Library at 507 Poplar Street, 
Atlantic, IA

- 11:00 a.m. on July 16 in the Clear Lake Public Library at 200 N. 4th 
Street, Clear Lake, IA,

The changes being proposed will propose the following:
Establish numerical water quality criteria for chloride for the protection 
of aquatic life uses.
Establish numerical water quality criteria for sulfate for the protection of 
aquatic life uses.
·         Remove TDS criteria and implementation approach
·         Revises default hardness level used for hardness dependent 
chemical criteria from 100 mg/l (as CaCO3) to 200 mg/l.

People can submit written comments by sending them to Adam Schnieders at the 
Iowa DNR, 502 East 9th St., Des Moines, IA 50319, or by email to 
[log in to unmask] . The DNR will accept comments until August 14, 
2009.

For more information, view the complete rule proposal at 
http://www.iowadnr.com/water/standards/index.html or, contact Adam by email 
or at (515) 281-7409. 

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