Drinking water quality · 2023
· Verified
· PWSID CA3600108
What's in Glen Helen Water System — San Bernardino, Ca, CA tap water
1 contaminant in Glen Helen Water System — San Bernardino, Ca, CA's water sat at or above a federal limit, led by HAA5 at 2.8x the limit.
- !1 contaminant at or above a federal limit — worst is HAA5 at 2.8x
- !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.
- −30 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
- HAA52.8× the federal limit0.17 mg/L · limit 0.06 mg/L
Long-term exposure above the federal limit is associated with an increased cancer risk.
Higher than 95% of CA systems that report it · higher than 95% of U.S. systems
+13 contaminants were measured and came in below the limitShow all
| Contaminant | Measured | Federal limit |
|---|---|---|
| Copper | 0.5 mg/L | 1.3 mg/L |
| Uranium | 1.7–10 ug/L | 30 ug/L |
| Nitrate | 2.6 mg/L | 10 mg/L |
| Chlorine Total | 0.92 mg/L | 4 mg/L |
| Gross Alpha | 2.9 pCi/L | 15 pCi/L |
| Fluoride | 0.37 mg/L | 4 mg/L |
| Combined Radium | 0.224 pCi/L | 5 pCi/L |
| Perfluorohexanesulfonic acid | 0.0056 ng/L | 10 ng/L |
| Boron | 0.135 mg/L | 1 mg/L |
| Lead | Not detected ug/L | 15 ug/L |
| Vanadium | 4.5 ug/L | 50 ug/L |
| Escherichia coli (E. coli) | 0 | 0 |
| Total Coliform | 0 | — |
What this report doesn't tell you
17 of the 27 contaminants a community water system normally reports do not appear anywhere in Glen Helen Water System — 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.