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Water Resource Protection
Project: Water Resource Protection
Clients: Cities of Lacey, Auburn, Olympia, Tumwater,
Grand Mound, and Fife
Locations: King, Pierce, and Thurston Counties,
Washington
Jim Mathieu was instrumental in developing wellhead protection
plans for many Washington municipal water purveyors. These plans
involved identifying areas in the water-supply aquifer that are
most susceptible to contamination from surface sources. Possible
contaminant sources included leaking underground storage tanks,
industrial solvents and heavy metals, nitrates from septic drain
fields and agricultural practices, and other chemicals. Work for
these municipalities entailed:
 Analyzing hydrogeologic
characterization data
Assessing flow
patterns and seasonal trends
Inventorying
potential contaminant sources
Reviewing well
construction data
Characterizing
water quality in the supply aquifer
Delineating
wellhead protection areas
Preparing a
report summarizing the study results
Designing long-term
monitoring programs
Jim’s work enabled these municipalities to estimate the threat
to groundwater quality at each wellhead; it also helps provide an
early warning of any contaminant movement toward supply wells.
© 2007 |
