WATER SAFETY: Farm Field Runoff Blamed For DM Exceeding TTHM Standard

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Des Moines Water Works is warning customers of a high level of a potentially dangerous chemical in their drinking water.

A recent test of Des Moines water showed a high than acceptable level of Total Trihalomethanes (TTHM) present.

Des Moines’ water has 0.090 mg/L of TTHM which is 0.010 milligrams per liter above the safety standard.

Water Works says it’s due to their increased use of chlorine to treat high levels of ammonia in the Raccoon River.

“Runoff into the Des Moines and Raccoon Rivers has once again created significant water quality and water treatment concerns,” Bill Stowe, CEO and General Manager, said. “We are completely at the mercy of what is in our rivers each day.”

Water works says it would take years of exposure to TTHM at this level to cause medical problems and the water is safe to drink.



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