Protecting Public Health and the Environment.

March 31, 2016

New Revised Total Coliform Rule takes effect April 1

Implementation of the Revised Total Coliform Rule (RTCR) begins April 1, 2016, for all public water systems. All public water systems will transition to the RTCR on their existing total coliform monitoring schedule. Owners and operators need to review and update their existing total coliform sample siting plans and have them available for review during sanitary surveys.

The RTCR did make some minor changes to repeat monitoring requirements for small systems following a routine total coliform positive sample result. Most important, the RTCR emphasizes a “find and fix” approach through performing assessments in order to eliminate potential pathways for fecal contamination. Assessments are required based upon total coliform and E.coli sample results. More detailed information on the RTCR can be found on the Revised Total Coliform Rule webpage.

For questions about RTCR, contact your nearest DEQ regional office or health district that regulates your public water system.

Staff Contacts

Drinking Water Program Manager
Jerri Henry
DEQ State Office
Water Quality Division
1410 N. Hilton
Boise, ID 83706
(208) 373-0471
jerri.henry@deq.idaho.gov

Decision Support Lead
Monica Van Bussum
DEQ State Office
Water Quality Division
1410 N. Hilton
Boise, ID 83706
(208) 373-0111
monica.vanbussum@deq.idaho.gov

Related Pages

Revised Total Coliform Rule

Public Water System Switchboard