On this page: Triggered Source Water Monitoring Also called
triggered source sampling, triggered source water monitoring
tests the untreated source water (from a well or spring) for
coliform bacteria when "triggered." The trigger is a positive
(present) result from a routine coliform sample in the
distribution system. Groundwater systems that disinfect are
subject to the triggered monitoring requirement under the
Groundwater Rule unless they are implementing the GWR compliance
monitoring option . The triggered samples must be incorporated
into the water system's coliform sampling plan. - Frequently
Asked Questions (FAQs) About Triggered Source Water Monitoring -
Updates to the Coliform Sampling Plan Template for Small Systems
(PDF; Summer 2009 Pipeline newsletter, page 7) - Coliform
Sampling Plan Template for Small Public Water Systems Serving Up
to 1,000 Persons: fillable MS Word -or- PDF Note: There is no
template for systems with populations over 1,000 people. For
those sized systems, add into the coliform