Drinking water quality · 2023
· Verified
· PWSID CA2410010
What's in Winton Water & Sanitary Dist — Winton, Ca, CA tap water
6 contaminants in Winton Water & Sanitary Dist — Winton, Ca, CA's water sat at or above a federal limit, led by DBCP at 40.0x the limit.
- !6 contaminants at or above a federal limit — worst is DBCP at 40.0x
- !1 open health-based violation on the federal record
- !11 of 27 core regulated contaminants reported — 16 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.
- −60 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
- −13 core regulated contaminants never reported (11/27)
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
- DBCP40.0× the federal limit8 ug/L · limit 0.2 ug/L
A probable human carcinogen; long-term exposure above the federal limit can cause reproductive harm.
- Barium2.5× the federal limit5 mg/L · limit 2 mg/L
Long-term exposure above the federal limit can raise blood pressure.
Higher than 95% of CA systems that report it · higher than 95% of U.S. systems
- Mercury2.5× the federal limit5 ug/L · limit 2 ug/L
Long-term exposure above the federal limit can damage the kidneys.
- Thallium2.5× the federal limit5 ug/L · limit 2 ug/L
- Nitrate1.2× the federal limit12.28 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
- Turbidity1.0× the federal limit1 NTU · limit 1 NTU
High turbidity can shelter microbes from disinfection; the EPA enforces it through a treatment-technique standard.
Higher than 85% of CA systems that report it · higher than 85% of U.S. systems
+12 contaminants were measured and came in below the limitShow all
| Contaminant | Measured | Federal limit |
|---|---|---|
| Aluminum | Not detected mg/L | — |
| Antimony | Not detected mg/L | 0.006 mg/L |
| Beryllium | 5 | — |
| Boron | 0–0.11 | 1 |
| Cadmium | Not detected mg/L | 0.005 mg/L |
| Copper | Not detected mg/L | 1.3 mg/L |
| Lead | Not detected ug/L | 15 ug/L |
| Nickel | 0.2 | — |
| Vanadium | 0–21 | 50 |
| Escherichia coli (E. coli) | 0 | 0 |
| Chromium | Not detected mg/L | 0.1 mg/L |
| 1,2,3-TCP | 0.06 | 5 |
What this report doesn't tell you
16 of the 27 contaminants a community water system normally reports do not appear anywhere in Winton Water & Sanitary Dist — Winton, 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-based4 violations on record · most recent Dec 1995resolved
- Treatment technique violationHealth-based1 violation on record · most recent Oct 20241 open
- Reporting1 violation on record · most recent Oct 20241 open
Source: EPA SDWIS / ECHO. View the full federal record on EPA ECHO ↗