San Mateo County, California Water Quality
Aggregated water quality data for 7 water systems in San Mateo County.
Water Systems
7
Water Systems
264K
People Served
Surface water, Ground water
Water Source
Detected Contaminants
| Contaminant | Detected Level | EPA Limit (MCL) | Health Guideline | % of Limit | Status |
|---|---|---|---|---|---|
| lithium | 23.6 | No federal limit | 10.0 ug/L(EPA/USGS HBSL) | 236% | Above guideline |
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