Drinking water quality · 2023
· Verified
· PWSID CA2010005
What's in Yosemite Spring Park Util Co — Coarsegold, Ca, CA tap water
1 contaminant in Yosemite Spring Park Util Co — Coarsegold, Ca, CA's water sat at or above a federal limit, led by Gross Alpha at 1.6x the limit.
- !1 contaminant at or above a federal limit — worst is Gross Alpha at 1.6x
- !1 open health-based violation on the federal record
- !15 of 27 core regulated contaminants reported — 12 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.
- −20 contaminants at or above a federal limit
- −0 contaminants within 20% of a limit
- −15 open health-based violations
- −9 open monitoring / reporting violations
- −6 health-based violations resolved in the last 5 years
- −6 core regulated contaminants never reported (15/27)
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
- Gross Alpha1.6× the federal limit1.67–23.5 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
+41 contaminants were measured and came in below the limitShow all
| Contaminant | Measured | Federal limit |
|---|---|---|
| Arsenic | 0–7.9 ug/L | 10 ug/L |
| TTHM | 31–36 ug/L | 80 ug/L |
| Copper | 0.236 mg/L | 1.3 mg/L |
| Fluoride | 0–0.29 mg/L | 4 mg/L |
| Nitrate | 0–0.27 mg/L | 10 mg/L |
| Lead | 0.0084 ug/L | 15 ug/L |
| Perchlorate | Not detected ug/L | — |
| Asbestos | Not detected MFL | 7 MFL |
| Cyanide | Not detected ug/L | 200 ug/L |
| Nitrite | Not detected mg/L | 1 mg/L |
| Aluminum | 0–0.06 mg/L | — |
| Antimony | Not detected ug/L | 6 ug/L |
| Barium | Not detected mg/L | 2 mg/L |
| Beryllium | Not detected ug/L | 4 ug/L |
| Cadmium | Not detected ug/L | 5 ug/L |
| Mercury | Not detected ug/L | 2 ug/L |
| Nickel | Not detected ug/L | — |
| Escherichia coli (E. coli) | 0 | 0 |
| Chlordane | Not detected ug/L | 2 ug/L |
| Chromium | Not detected ug/L | 100 ug/L |
| Deha | Not detected ug/L | 400 ug/L |
| Dehp | Not detected ug/L | 6 ug/L |
| Dinoseb | Not detected ug/L | 7 ug/L |
| Diquat | Not detected ug/L | 20 ug/L |
| Edb | Not detected ug/L | 5000 ug/L |
| Endothall | Not detected ug/L | 100 ug/L |
| Endrin | Not detected ug/L | 2 ug/L |
| Heptachlor | Not detected ug/L | 0.4 ug/L |
| Heptachlor Epoxide | Not detected ug/L | 0.2 ug/L |
| Hexachlorobenzene | Not detected ug/L | 1 ug/L |
| Hexachlorocyclopentadiene | Not detected ug/L | 50 ug/L |
| Methoxychlor | Not detected ug/L | 40 ug/L |
| Oxamyl | Not detected ug/L | 200 ug/L |
| Pcb Total | Not detected ug/L | 0.5 ug/L |
| Tce | Not detected ug/L | 5 ug/L |
| Vinyl Chloride | Not detected ug/L | 2 ug/L |
| Uranium | 2.9–17 pCi/L | 20 pCi/L |
| Dalapon | Not detected ug/L | 200 ug/L |
| DBCP | Not detected ug/L | 0.2 ug/L |
| Toluene | Not detected ug/L | 1000 ug/L |
| Xylenes | Not detected ug/L | 10000 ug/L |
What this report doesn't tell you
12 of the 27 contaminants a community water system normally reports do not appear anywhere in Yosemite Spring Park Util Co — Coarsegold, 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.
- Maximum contaminant level exceededHealth-based21 violations on record · most recent Oct 2022resolved
- Treatment technique violationHealth-based1 violation on record · most recent Oct 20241 open
- Other2 violations on record · most recent Jul 20212 open
- Monitoring & reporting1 violation on record · most recent Oct 20251 open
- Reporting1 violation on record · most recent Oct 20241 open
Source: EPA SDWIS / ECHO. View the full federal record on EPA ECHO ↗