Drinking water quality · 2023
· Verified
· PWSID CA3610051
What's in Valley of Enchantment Mwc — Crestline, Ca, CA tap water
2 contaminants in Valley of Enchantment Mwc — Crestline, Ca, CA's water sat at or above a federal limit, led by PFOS at 1.8x the limit.
- !2 contaminants at or above a federal limit — worst is PFOS at 1.8x
- !1 open health-based violation on the federal record
- !10 of 27 core regulated contaminants reported — 17 never appear in this report
+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.
- −41 contaminants at or above a federal limit
- −0 contaminants within 20% of a limit
- −15 open health-based violations
- −3 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
- PFOS1.8× the federal limit0–7.1 ng/L · limit 4 ng/L
Linked to cancer, thyroid disease, and immune effects; the EPA set an enforceable limit of 4 parts per trillion.
Higher than 70% of CA systems that report it · higher than 70% of U.S. systems
- Gross Alpha1.5× the federal limit0–22.5 pCi/L · limit 15 pCi/L
Long-term exposure above the federal limit increases cancer risk.
Higher than 95% of CA systems that report it · higher than 95% of U.S. systems
+8 contaminants were measured and came in below the limitShow all
| Contaminant | Measured | Federal limit |
|---|---|---|
| Lead | 0.0098 mg/L | 0.015 mg/L |
| Nitrate | 0–5.8 mg/L | 10 mg/L |
| Chlorine | 0.2–1.2 mg/L | 4 mg/L |
| Arsenic | 0–3 ug/L | 10 ug/L |
| Copper | 0.36 mg/L | 1.3 mg/L |
| Combined Radium | 0–1 pCi/L | 5 pCi/L |
| Turbidity | 0.57 | — |
| Uranium | 0–18 pCi/L | 20 pCi/L |
What this report doesn't tell you
17 of the 27 contaminants a community water system normally reports do not appear anywhere in Valley of Enchantment Mwc — Crestline, 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.
- Treatment technique violationHealth-based1 violation on record · most recent Oct 20241 open
- Maximum contaminant level exceededHealth-based1 violation on record · most recent May 1996resolved
- Reporting1 violation on record · most recent Oct 20241 open
Source: EPA SDWIS / ECHO. View the full federal record on EPA ECHO ↗