Crypto Threat May be Lower than Previously Thought

The US Environmental Protection Agency has presented preliminary data suggesting that Cryptosporidium is less prevalent in drinking water supplies than anticipated. At a stakeholder meeting Dec. 7 on the Long-Term 2 Enhanced Surface Water Treatment Rule (LT2), the US Environmental Protection Agency presented preliminary data suggesting that Cryptosporidium is less prevalent in drinking water supplies than anticipated by the current rule.

Fewer source waters than anticipated had mean concentrations greater than 0.075 oocysts/L — meaning that no additional treatment is required. EPA has not decided how it will determine whether any changes are needed in the rule. Read more at the AWWA Streamlines article.

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