Physical & aggregate · 2024
Total Dissolved Solids in Pomona, CA tap water
Pomona, CA's 2024 Consumer Confidence Report shows Total Dissolved Solids at or above the federal limit (1 mg/L MCL). Measured value is 632.0× the threshold.
The measurement
| Statistic | Value | Federal limit |
|---|---|---|
Range Miramar Effluent | 230 mg/L | 1 mg/L MCL |
Range Pomona Effluent | 160–165 mg/L | 1 mg/L MCL |
Reported level Miramar Groundwater Well #2 | 220 mg/L | 1 mg/L MCL |
Reported level Miramar Effluent | 230–250 mg/L | 1 mg/L MCL |
Reported level Miramar Groundwater Well #1 | 260 mg/L | 1 mg/L MCL |
Range Weymouth Effluent | 573–632 mg/L | 1 mg/L MCL |
Reported level Weymouth Effluent | 506–587 mg/L | 1 mg/L MCL |
Reported level Miramar Groundwater Grand Well | 280 mg/L | 1 mg/L MCL |
Reported level Miramar Groundwater Well #1 | 260 mg/L | 1 mg/L MCL |
Reported level Miramar Groundwater Well #2 | 220 mg/L | 1 mg/L MCL |
Range Pomona Groundwater | 230–375 mg/L | 1 mg/L MCL |
Reported level Miramar Groundwater Grand Well | 280 mg/L | 1 mg/L MCL |
Verbatim from Pomona, 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 Pomona, CA compares
5 of the 119 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 Pomona, CA tap water?
Yes — Pomona, CA's 2024 Consumer Confidence Report lists Total Dissolved Solids at 573–632 mg/L. Pomona, CA's 2024 Consumer Confidence Report shows Total Dissolved Solids at or above the federal limit (1 mg/L MCL). Measured value is 632.0× the threshold.
+What's the federal limit for Total Dissolved Solids in drinking water?
The federal MCL for Total Dissolved Solids is 1 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 119 systems on The Water Map measuring Total Dissolved Solids report it at or above the federal limit. Examples include Ventura, CA, Torrance, CA, St George, UT.
+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 Pomona, 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/pomona/2024/source.