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 Taos, New Mexico (Round 2)

Site Information
Location: Taos, NM
Population: 5,000
Address: 400 Camino de la Placita
Taos, NM 87571
Contact: Patrick Vigil, Utility Director 
Demonstration Site: Rio Publeo Well
Enclosed Space: 525 ft2
Source Water: Ground Water
Maximum Daily Flow: 400 gpm
Existing Treatment: MIOX
Arsenic Removal Technology: Severn Trent Iron Media Sorb 33 with pH Adjusted
Disposal Option: Wastewater Treatment Plant


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 0.019 pH – Units 9.7
As (III) N/A Ca 1.4
As (V) N/A Mg 0.1
Fe <0.04 Na 61
Mn <0.01 Chloride 10
PO4 – P N/A Hardness as CaCO3 <5
SiO2 N/A T. Alkalinity as CaCO3 82
SO4 38 TOC N/A
Al 0.26 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 Taos, NM, Drinking Water (PDF) (2 pp, 156 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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