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 Okanogan, Washington (Round 2)

Site Information
Location: Okanogan, WA
Population: 2,453
Address: Okanogan Public Works
P.O. Box 752
Okanogan, WA
Contact: Ray Clements, Superintendent (509) 422-0717
Demonstration Site: Well #4
Enclosed Space: None
Source Water: Ground Water
Maximum Daily Flow: 550 gpm
Existing Treatment: None
Arsenic Removal Technology: Filtronics Coagulation, Filtration
Disposal Option: None


Project Status
Cooperative Research and Development Agreement (CRADA) signed Completed
CRADA approved by legal Completed
EPA/contractor site visit Completed
Contractor/system agreement Completed
Plans submitted Completed
Plans approved Completed
Equipment installed N/A
Study began N/A
Study completed N/A
Six-month report cleared N/A
Final report cleared N/A


Source Water Quality
Analysis mg/L Analysis mg/L
Total As 0.017 pH - Units 7.6
As (III) N/A Ca N/A
As (V) N/A Mg N/A
Fe 0.07 Na 21
Mn 0.06 Chloride N/D
PO4 - P N/A Hardness as CaCO3 N/A
SiO2 N/A T. Alkalinity as CaCO3 N/A
SO4 111 TOC N/A

Note: All data provided by utility except as noted.
N/A = Not available
N/D = Non-detectable


Tom Sorg

See Also

Okanogan, WA Fact Sheet (PDF) (2 pp, 123 KB) June 2006

Federal Register Environmental Documents: Arsenic Treatment Demonstrations

How to Participate

Demo Site Information form (PDF) (2 pp, 57 KB)

Frequently Asked Questions

Publications on Arsenic

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