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Water Supply and Distribution
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Coulee City, Washington
Comprehensive Water System Plan, Design and Upgrade of
Water Distribution System
 WQE secured grant
funding for completion of a Comprehensive Water System Plan
for Coulee City. The water distribution system is over 60
years old and has high distribution system losses that appear
to affect groundwater elevation and I&I in the sewer
collection system. Distribution system was modeled with
WaterCAD and recommendations for improvements have been
approved by the Washington State Department of Health. WQE
prepared grant and loan application for planning and
engineering and design of system improvements. Replacement of
distribution system will begin in 2005 with replace of
leakiest lines and adequate provisions for fire flow.
Project Manager: Peter S. Burgoon, PE
Project Team: Munson Engineers, Economic and Engineering
Services (EES), and Pacific Groundwater Group |
Okanogan, Washington
Arsenic Treatment for City of Okanogan, Well No. 4
 WQE prepared the
engineering report and plan sheets for installation of a
Filtronics FH-13 Electromedia arsenic treatment and filtration
system. Chlorine is used to oxidize the reduced form of arsenic
which is then flocculated and filtered in a sand media. Influent
Arsenic is 18 ug/L which is greater than the 10 ug/l drinking
water standard; after treatment arsenic is expected to be less
than 2 ug/L. WQE is working with Battelle Corporation, Triad
Mechanical, City of Okanogan and Gray & Osborne on this project.
System treatment capacity is 450 gpm.
Manager: Triad Mechanical, Inc.
Project Team: Water Quality Engineering, Triad Mechanical, Inc., Grey and Osborne, Inc. |
Okanogan County, Washington
Nitrate Removal from Source Well, Custom Orchard #1 Water System
 WQE evaluated various alternatives for reducing
nitrate concentrations due to exceedances of Washington Department
of Health (DOH) contamination levels. High nitrates are a result of
infiltration by irrigation water exposed to fertilizers infiltrating
the shallow aquifer from which the well draws water. Connection to
“city” water and installation of a new well were not practical so a
nitrate removal system with ion exchange resins was designed, built
and put into use.
Manager: Peter S. Burgoon, PE
Project Team: Water Quality Engineering, Central Washington Water |
Representative Projects
Wastewater
for Small Communities
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