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Water Pollution
Pollution of Des Moines River by waste grows.
Mull court action against Des Moines to end river pollution.
Clean water cost in Iowa: 52 million dollars.
Pollution hazard may curb fertilizer use.
How to kill a lake.
All fish threatened in 50-mile stretch below the Des Moines sewage treatmen
A worldwide concern about water pollution is helping to develop markets for
State authorities are launching a crackdown on cattle feedlots that may con
State acts to halt pollution of stream by Spillville.
A state official lauds fight on pollution.
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