The Power of Information

National Drinking Water Database


Alpha particle activity (excl radon and uranium) in Missouri


Alpha particles are a form of radiation associated with radioactive mining waste pollutants and natural sources. [read more]

The Most Polluted Communities in Missouri

59 water utilities reported detecting Alpha particle activity (excl radon and uranium) in tap water since 2004, according to EWG's analysis of water quality data supplied by state water agencies

Ranked by highest average Alpha particle activity (excl radon and uranium) level

RankSystem Population Served Positive test results of total reported tests Average Level
(Range)
1Autumn Hills Mhp
St Peters, MO
5003 of 336.47 pCi/L
(29.6 to 41.1 pCi/L)
2Pineville
Pineville, MO
8001 of 126.7 pCi/L
(26.7 pCi/L)
3MC Donald Co Pwsd #3
Noel, MO
5606 of 624.87 pCi/L
(20 to 31.5 pCi/L)
4Tara Valley Water Assn
Troy, MO
604 of 424.43 pCi/L
(17.6 to 31.3 pCi/L)
5Walnut Grove Mhp
Farmington, MO
1354 of 424.35 pCi/L
(19.3 to 30 pCi/L)
6Wycliff Meadows Subd
Pilot Knob, MO
1001 of 122.3 pCi/L
(22.3 pCi/L)
7Farmington
Farmington, MO
11,2245 of 522.27 pCi/L
(17.94 to 29.6 pCi/L)
8Potosi
Potosi, MO
2,6834 of 421.43 pCi/L
(5 to 40.55 pCi/L)
9Southview Mhp & RV Camp
MO
1001 of 120.4 pCi/L
(20.4 pCi/L)
10Bronaugh
Bronaugh, MO
2116 of 619.95 pCi/L
(8.3 to 31.9 pCi/L)

Health Based Limits for Alpha particle activity (excl radon and uranium)

StandardDescriptionLevel
Maximum Contaminant Limit Goal (MCLG)A non-enforceable health goal that is set at a level at which no known or anticipated adverse effect on the health of persons occurs and which allows an adequate margin of safety. Source: U.S. Environmental Protection Agency.0 pCi/L
One in one million (10-6) Cancer RiskThe concentration of a chemical in drinking water corresponding to an excess estimated lifetime cancer risk of 1 in 1,000,000. Source: U.S. Environmental Protection Agency.0.15 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
One in ten thousand (10-4) Cancer RiskThe concentration of a chemical in drinking water corresponding to an excess estimated lifetime cancer risk of 1 in 10,000. Source: U.S. Environmental Protection Agency.15 pCi/L

Violation Summary for Alpha particle activity (excl radon and uranium) in Missouri

Data from the U.S. Environmental Protection Agency includes the following violations of federal standards in Missouri since 2004

Violation TypeNumber of Violations
Over maximum contaminant level, Average254
Failure to monitor regularly93