The Power of Information

National Drinking Water Database

Combined Uranium (pCi/L) in Illinois

Uranium is a radioactive element commonly found in most rocks; processed ore is used for power generation and weapons manufacture. [read more]

The Most Polluted Communities in Illinois

188 water utilities reported detecting Combined Uranium (pCi/L) in tap water since 2004, according to EWG's analysis of water quality data supplied by state water agencies

Ranked by highest average Combined Uranium (pCi/L) level

RankSystem Population Served Positive test results of total reported tests Average Level
Bellwood, IL
20,5351 of 19 pCi/L
(9 pCi/L)
2Lindentree Townhomes
Northbrook, IL
2311 of 13.5 pCi/L
(3.5 pCi/L)
3Whispering Lakes Water System, Inc.
Lake Bluff, IL
3756 of 73.23 pCi/L
(0 to 7.5 pCi/L)
4Wildwood Subdivision
Libertyville, IL
14,7091 of 12.9 pCi/L
(2.9 pCi/L)
Winslow, IL
3612 of 22.25 pCi/L
(2 to 2.5 pCi/L)
6Expressway Mhp
Quincy, IL
981 of 12.2 pCi/L
(2.2 pCi/L)
Joliet, IL
145,00034 of 342.13 pCi/L
(0.18 to 4.5 pCi/L)
Aurora, IL
171,0001 of 12 pCi/L
(2 pCi/L)
9Robinson-Palestine Water Commission
Robinson, IL
11,3891 of 12 pCi/L
(2 pCi/L)
10Aqua Illinois-Ravenna
Kankakee, IL
261 of 12 pCi/L
(2 pCi/L)

Health Based Limits for Combined Uranium (pCi/L)

Maximum Contaminant Limit (MCL)The enforceable standard which defines the highest level of a contaminant that is allowed in drinking water. MCLs are set as close to health-based limits (Maximum Contaminant Level Goals, or MCLGs) as feasible using the best available analytical and treatment technologies and taking cost into consideration. Source: U.S. Environmental Protection Agency.15 pCi/L

Violation Summary for Combined Uranium (pCi/L) in Illinois

There are no violations reported for this contaminant in Illinois