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 Lake Isabella, California (Round 2)

Site Information
Location: Lake Isabella, CA
Population: 600
Address: California Water Service Company
2632 West 237th St.
Torrance, CA 90505
Contact: Kate Brophy, Project Manager
Demonstration Site: Upper Bodfish Well CH-2
Lake Isabella, CA
Enclosed Space: None
Source Water: Ground Water
Maximum Daily Flow: Approximately 38 gpm
Existing Treatment: Chlorination After Blending with Well #7
Arsenic Removal Technology: VEEtech, HIX Resin
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 Completed
Study began Completed
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 0.037 pH – Units 7.0
As (III) N/A Ca 34
As (V) N/A Mg 2
Fe 0.8 Na 28
Mn 0.02 Chloride 9
PO4 – P <0.07 Hardness as CaCO3 86
SiO2 40 T. Alkalinity as CaCO3 85
SO4 38 TOC N/A
Uranium 30 pCi/L N/A N/A

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


Tom Sorg

See Also

Fact Sheet, EPA’s Water Treatment Demonstration Project to Reduce Amount of Arsenic in Lake Isabella, CA, Drinking Water (PDF) (2 pp, 124 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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