EWG INVESTIGATION

Findings

About The Data

News Release

EWG Statement, 03/10/2008

Related News Clips

WHAT'S IN YOUR WATER?

Find Your Water Company

NATIONAL SUMMARY

Quality Varies Across the U.S.

CONTAMINANTS DATABASE

Find a Contaminant

Credits

Sign up to receive email updates from EWG

Status: Regulated - EPA has established a maximum legal limit in tapwater for this contaminant.

Alpha particle activity (suspended) is a from mining waste polluants and natural sources. No information on potential health impacts for Alpha particle activity (suspended) was identified in standard government and academic sources. [read more]

Sources of Alpha particle activity (suspended):

	Industry
	Naturally Occurring (naturally present but increased for lands denuded by sprawl, agriculture, or industrial development)

An Environmental Working Group analysis of Alpha particle activity (suspended) tests reported by 1 public water suppliers in 1 states shows that between 2001 and 2001, 375 people in 1 communities drank water contaminated with Alpha particle activity (suspended).

Exposure Summary

375 People drinking water contaminated with Alpha particle activity (suspended) 1 Community served water contaminated with Alpha particle activity (suspended)

Table. Alpha particle activity (suspended) Exposure by State

375 Americans in 1 states were served tap water contaminated with Alpha particle activity (suspended) between 2001 and 2001.

State	Water suppliers with Alpha particle activity (suspended) contamination
	Systems	Population
Ohio	1	375
Total	1	375

Table. The most polluted communities

375 Americans in 1 communities were served tap water contaminated with Alpha particle activity (suspended) between 2001 and 2001

Ranked by highest average Alpha particle activity (suspended) level

Rank	System	Population Served	Positive test results of total reported tests	Average Level (Range)
1	Village of Mount Eaton Water Mt Eaton, OH	375	1 of 1	4.2 pCi/L (4.2 to 4.2 pCi/L)

Health based limits for Alpha particle activity (suspended)

Health Limit	Limit Value	Limit Description
Maximum Contaminant Limit (MCL)	15 pCi/L	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.

Testing Summary for Alpha particle activity (suspended)

Water suppliers report an average of 1.0 Alpha particle activity (suspended) tests per year. 39,750 water suppliers failed to report any Alpha particle activity (suspended) tests at all.

Are tests routinely required for Alpha particle activity (suspended) by federal law? Yes Water suppliers reporting tests for Alpha particle activity (suspended) (2001-2001): 1 of 39,751 Average testing rate for water supplier reporting tests (2001-2001): 1.0 per year

Alpha particle activity (suspended) Violations

Table. < 0.1 percent of all water suppliers violated safe drinking water standards for Alpha particle activity (suspended) between 1998 and 2003

Violation Type	Violations	Systems