National Drinking Water Database
Cooper Sub Mobile Home Park Utilities - Ralston, WY
Serves 100 people
Gross beta particle activity (dissolved)Beta particles are a form of radiation frequently associated with nuclear testing and radioactive mineral deposits.
Testing History-Tested      -Detected      -Over Health Guidelines      -Over Legal Limit*
|Gross beta particle activity (dissolved)Beta particles are a form of radiation frequently associated with nuclear testing and radioactive mineral deposits.||4.6 pCi/L|
|NOTE: Each dot in the above graph represents one month.|
* Water utilities are noted as exceeding the legal limit if any test is above the maximum contaminant level (MCL). Most MCLs are based on annual averages so exceeding the MCL for one test does not necessarily indicate that the system is out of compliance.
Health Based and Legal Limits for Gross beta particle activity (dissolved)
Health Based Limits for Gross beta particle activity (dissolved)
|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|
|Samples taken that day||Number of Non-Detects||Range of Results|
|2007-11-27||2.8 pCi/L||6||0||2.8 pCi/L|
|2007-02-07||6.4 pCi/L||6||0||6.4 pCi/L|