National Drinking Water Database
Mary Francis Subdivision Utilities - Houston, TX
Serves 1,506 people
Alpha, DissolvedAlpha particles are a form of radiation associated with mining waste pollutants and natural sources.
Testing History-Tested      -Detected      -Over Health Guidelines      -Over Legal Limit*
|Alpha, DissolvedAlpha particles are a form of radiation associated with mining waste pollutants and natural sources.||19.15 pCi/L|
|No||Legal at any levelThis is the Federal Limit. State Limits may be lower.|
|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 Alpha, Dissolved
Health Based Limits for Alpha, Dissolved
There are no health based standards that EWG is using for this chemical
|Samples taken that day||Number of Non-Detects||Range of Results|
|2006-10-09||20.4 pCi/L||1||0||20.4 pCi/L|
|2006-07-26||17.9 pCi/L||1||0||17.9 pCi/L|