Frequent Questions

Why did EPA revise the 1989 Total Coliform Rule?

The 1996 amendments to the Safe Drinking Water Act [Section 1412(b) (9)] require the Administrator to review and revise each national primary drinking water regulation every six years when changes are deemed appropriate. EPA published its decision to revise the TCR in July 2003 as part of its National Primary Drinking Water Regulation (NPDWR) review.

Have more questions? Submit a request