Physical & aggregate · 2024
Total Dissolved Solids in California Water Service - San Mateo, CA tap water
California Water Service - San Mateo, CA's 2024 Total Dissolved Solids measurement is below the federal limit of 1000 mg/L (MCL).
The measurement
| Statistic | Value | Federal limit |
|---|---|---|
Range SFPUC Water | 24–169 mg/L | 1000 mg/L MCL |
Average SFPUC Water | 102 mg/L | 1000 mg/L MCL |
Verbatim from California Water Service - San Mateo, CA's 2024 Consumer Confidence Report — source document ↗
About Total Dissolved Solids
Total dissolved solids — the combined content of all dissolved minerals and salts.
Regulated only as a secondary (cosmetic) standard; high levels affect taste and hardness.
How California Water Service - San Mateo, CA compares
5 of the 222 systems measuring Total Dissolved Solids on The Water Map have it at or above the federal limit:
Nearby systems also reporting Total Dissolved Solids:
People also ask
+Is there Total Dissolved Solids in California Water Service - San Mateo, CA tap water?
Yes — California Water Service - San Mateo, CA's 2024 Consumer Confidence Report lists Total Dissolved Solids at 102 mg/L. California Water Service - San Mateo, CA's 2024 Total Dissolved Solids measurement is below the federal limit of 1000 mg/L (MCL).
+What's the federal limit for Total Dissolved Solids in drinking water?
The federal MCL for Total Dissolved Solids is 1000 mg/L. The EPA enforces this against the regulated reporting statistic (running annual average or 90th percentile), not a single-sample spike.
+What is Total Dissolved Solids?
Total dissolved solids — the combined content of all dissolved minerals and salts. Regulated only as a secondary (cosmetic) standard; high levels affect taste and hardness.
+Which other U.S. cities have Total Dissolved Solids over the federal limit?
5 of the 222 systems on The Water Map measuring Total Dissolved Solids report it at or above the federal limit. Examples include Inglewood, CA, Naf El Centro, CA, Covina-city, Water Dept., CA.
+Where does this Total Dissolved Solids measurement come from?
This page reproduces the Total Dissolved Solids entry from the 2024 Consumer Confidence Report published by the California Water Service - San Mateo, CA water utility — the annual drinking-water report every U.S. utility is required by federal law to publish. The original source document is archived at /water/ca/california-water-service-san-mateo/2024/source.