Drinking water quality · 2023
· Verified
· PWSID CA3610039
What's in San Bernardino City — San Bernardino, Ca, CA tap water
2 contaminants in San Bernardino City — San Bernardino, Ca, CA's water sat at or above a federal limit, led by Dichloromethane at 2.0x the limit.
- !2 contaminants at or above a federal limit — worst is Dichloromethane at 2.0x
- !10 of 27 core regulated contaminants reported — 17 never appear in this report
- ✓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.
- −46 contaminants at or above a federal limit
- −0 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
- −14 core regulated contaminants never reported (10/27)
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
- Dichloromethane2.0× the federal limit0.01 mg/L · limit 0.005 mg/L
Higher than 95% of CA systems that report it · higher than 95% of U.S. systems
- Nitrate1.8× the federal limit17.6 mg/L · limit 10 mg/L
Levels above the federal limit can cause 'blue baby syndrome,' a serious oxygen-transport condition in infants.
Higher than 95% of CA systems that report it · higher than 95% of U.S. systems
+14 contaminants were measured and came in below the limitShow all
| Contaminant | Measured | Federal limit |
|---|---|---|
| Copper | 0.29 mg/L | 1.3 mg/L |
| Chlorine | 0.68 mg/L | 4 mg/L |
| Fluoride | 0.42 mg/L | 4 mg/L |
| Turbidity | 0.03 NTU | 1 NTU |
| Tetrachloroethylene | 0.06 ug/L | 5 ug/L |
| HAA5 | Not detected mg/L | 0.06 mg/L |
| Perchlorate | 0.86 | — |
| Asbestos | Not detected MFL | 7 MFL |
| Nickel | Not detected | — |
| Cis Dichloroethylene 12 | Not detected mg/L | 0.07 mg/L |
| Dichloropropane 12 | Not detected mg/L | 0.005 mg/L |
| Gross Alpha | Not detected pCi/L | 15 pCi/L |
| Uranium | 3.2 pCi/L | 20 pCi/L |
| Trichloroethylene | Not detected ug/L | 5 ug/L |
What this report doesn't tell you
17 of the 27 contaminants a community water system normally reports do not appear anywhere in San Bernardino City — San Bernardino, 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.