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FINAL MONITORING SCHEDULE ISSUED FOR UNREGULATED DRINKING WATER CONTAMINANTS
Release Date: 09/10/99
United States Communications, Education,
Environmental Protection And Media Relations
Following are some Agency developments which may interest you. If you need
more information on any of these subjects, call the appropriate contact.
FINAL MONITORING SCHEDULE ISSUED FOR
UNREGULATED DRINKING WATER CONTAMINANTS
The Safe Drinking Water Act requires EPA to determine whether a contaminant not currently regulated is showing up in drinking water supplies at a level or frequency that might warrant regulation. Monitoring for unregulated contaminants at public water systems provides an early warning of a contaminant’s presence before serious public health impacts occur. EPA has included 36 contaminants on the Unregulated Contaminant Monitoring Regulation (UCMR) List. Based on availability of analytical methods, EPA has selected for this final rule, 12 of these contaminants for monitoring by the nation’s large drinking water suppliers (those serving more than 10,000 persons) and a representative sample of small drinking water systems (serving 10,000 or fewer persons). These systems will be required to begin monitoring in 2001 to determine whether or not the contaminants are present at a level or frequency that would warrant consideration for regulation at a later date. EPA will address additional potential contaminants on the UCMR list in future rulemaking. The final "Revision to the Unregulated Contaminant Monitoring Regulation for Public Water Systems" will be published in the Federal Register on September 17. For more information, the general public can call EPA’s Safe Drinking Water Hotline at 1-800-426-4791, or access EPA’s drinking water web site at: https://www.epa.gov/safewater.