Drinking water quality · 2023
· Verified
· PWSID CA1910146
What's in Santa Monica-city, Water Division — Los Angeles, Ca, CA tap water
Every one of the 12 core regulated contaminants reported for Santa Monica-city, Water Division — Los Angeles, Ca, CA came in below its federal limit.
- !1 contaminant within 20% of a limit
- !12 of 27 core regulated contaminants reported — 15 never appear in this report
- ✓Nothing over a federal limit
- ✓No open federal violations
+How this score is calculated
Every system starts at 100. Points come off for measured levels, for the federal violation record, and for how much of the core regulated set the utility actually reported. All three inputs are the utility's own published numbers and EPA's own records.
- −0 contaminants at or above a federal limit
- −4 contaminants within 20% of a limit
- −0 open health-based violations
- −0 open monitoring / reporting violations
- −0 health-based violations resolved in the last 5 years
- −11 core regulated contaminants never reported (12/27)
A 90–100 · B 80–89 · C 70–79 · D 60–69 · F below 60. A system reporting under a third of the core set is capped at C however clean its numbers look — a short report is not a clean bill of health.
Full grading methodology, constant for constant →What to worry about
- Chlorine88% of the federal limit0–3.5 mg/L · limit 4 mg/L
Effective and necessary, but high residual levels can cause taste and odor issues; the EPA caps the residual disinfectant level.
Higher than 95% of CA systems that report it · higher than 95% of U.S. systems
+17 contaminants were measured and came in below the limitShow all
| Contaminant | Measured | Federal limit |
|---|---|---|
| Fluoride | 0.7–1.9 mg/L | 4 mg/L |
| Bromate | 3.1 ug/L | 10 ug/L |
| HAA5 | 0–17.5 ug/L | 60 ug/L |
| Nitrate | 2.8 mg/L | 10 mg/L |
| Tce | 0.7 ug/L | 5 ug/L |
| Copper | 90 ug/L | 1300 ug/L |
| Barium | 124 ug/L | 2000 ug/L |
| Chromium | 1.7 ug/L | 100 ug/L |
| Perchlorate | 0.7 ug/L | 1 ug/L |
| Aluminum | 93 ug/L | 600 ug/L |
| Arsenic | Not detected ug/L | 10 ug/L |
| Lead | 0 ug/L | 15 ug/L |
| Total Coliform | 0 | — |
| TOC | 2.4 mg/L | — |
| Turbidity | Not detected NTU | 1 NTU |
| Combined Radium | Not detected pCi/L | 5 pCi/L |
| Uranium | 2 pCi/L | 0.43 pCi/L |
What this report doesn't tell you
15 of the 27 contaminants a community water system normally reports do not appear anywhere in Santa Monica-city, Water Division — Los Angeles, Ca, CA's data. Absent is not the same as absent-from-the-water — it means nobody published a number.
+Full detail: PFAS testing, water source, historical monitoring, and the federal violation record
Compliance history
Federal Safe Drinking Water Act violation & enforcement records (EPA SDWIS). A violation is a regulatory determination by the state or EPA — separate from the measured levels above.