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 Sells, Arizona (Round 2)

Site Information
Location: Sells, AZ
Population: 300
Address: P.O. Box 816
Sells, AZ  85634
Contact: Tim Walls, Superintendent
Demonstration Site: Sikul Himatk Village
Cover Wells Regional Water System
Gu Achi District
Tohono O'odham Nation
Enclosed Space: N/A
Source Water: Ground Water
Maximum Daily Flow: 63 gpm
Existing Treatment: None
Arsenic Removal Technology: AdEdge Iron Media AD33 with pH Adjusted
Disposal Option: Backwash to be recharged


Project Status
Cooperative Research and Development Agreement (CRADA) signed N/A
CRADA approved by legal N/A
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 0.026, 0.034* pH – Units 7.7
As (III) N/A Ca 11, 10*
As (V) N/A Mg 2*
Fe 0.228*, 0.029* Na 76, 72*
Mn 0.004* Chloride 17, 21*
PO4 – P <0.065* Hardness as CaCO3 27
SiO2 24* T. Alkalinity as CaCO3 150, 140*
SO4 23, 23* TOC N/A

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


Tom Sorg

See Also

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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