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National Drinking Water Database

Tert-Butyl Alcohol in California

tert-Butyl alcohol is used in disinfectants, solvents, paints, laboratory chemicals and in numerous industrial processes; over one billion pounds were manufactured in 2006.

The Most Polluted Communities in California

32 water utilities reported detecting Tert-Butyl Alcohol in tap water since 2004, according to EWG's analysis of water quality data supplied by state water agencies

Ranked by highest average Tert-Butyl Alcohol level

RankSystem Population Served Positive test results of total reported tests Average Level
1Santa Ynez River Water Cons. Dist. Id#1
Santa Ynez, CA
6,5001 of 125.5 ppb
(0 to 66 ppb)
2Edwards Afb - Air Force Research Lab
Edwards Air Force Base, CA
1,2151 of 14.9 ppb
(4.9 ppb)
3Cypress Canyon Water System
Lake Isabella, CA
481 of 13.6 ppb
(3.6 ppb)
4Golden State Water Co - Wrightwood
Apple Valley, CA
9,4791 of 33.33 ppb
(0 to 10 ppb)
5Yosemite Spring Park Util Co
Coarsegold, CA
3,3002 of 353.09 ppb
(0 to 88 ppb)
6Edwards Afb - Main Base
Edwards Afb, CA
14,9131 of 22.97 ppb
(0 to 5.94 ppb)
7Paramount - City, Water Dept.
Paramount, CA
55,2001 of 22.05 ppb
(0 to 4.1 ppb)
8Kern Valley Mutual Water
Lake Isabella, CA
341 of 21.7 ppb
(0 to 3.4 ppb)
9Hope Foundation/Moriah Heights
Plymouth, CA
3001 of 31.3 ppb
(0 to 3.9 ppb)
10Pillar Ridge Mhp (Former EL Granada Mhp)
Moss Beach, CA
1,0001 of 131.23 ppb
(0 to 16 ppb)

Health Based Limits for Tert-Butyl Alcohol

There are no health based standards that EWG is using for this chemical

Violation Summary for Tert-Butyl Alcohol in California

There are no violations reported for this contaminant in California