National Drinking Water Database
Combined Radium (-226 & -228) in Delaware
Radium is a radioactive element usually found around uranium deposits. [read more]
The Most Polluted Communities in Delaware
1 water utilities reported detecting Combined Radium (-226 & -228) in tap water since 2004, according to EWG's analysis of water quality data supplied by state water agencies
Ranked by highest average Combined Radium (-226 & -228) level
| Rank | System | Population Served | Positive test results of total reported tests | Average Level (Range) |
|---|---|---|---|---|
| 1 | New Castle Water Department New Castle, DE | 6,000 | 3 of 3 | 3.39 pCi/L (1.58 to 4.56 pCi/L) |
Health Based Limits for Combined Radium (-226 & -228)
| Standard | Description | Level |
|---|---|---|
| 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 |
| 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. | 5 pCi/L |
Violation Summary for Combined Radium (-226 & -228) in Delaware
There are no violations reported for this contaminant in Delaware