Drinking water quality · 2023
· Verified
· PWSID CA3910010
What's in San Joaquin County - Lincoln Village — Stockton, Ca, CA tap water
1 contaminant in San Joaquin County - Lincoln Village — Stockton, Ca, CA's water sat at or above a federal limit, led by Turbidity at 98.5x the limit.
- !1 contaminant at or above a federal limit — worst is Turbidity at 98.5x
- !16 of 27 core regulated contaminants reported — 11 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.
- −36 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
- −5 core regulated contaminants never reported (16/27)
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
- Turbidity98.5× the federal limit98.5 NTU · limit 1 NTU
High turbidity can shelter microbes from disinfection; the EPA enforces it through a treatment-technique standard.
Higher than 95% of CA systems that report it · higher than 95% of U.S. systems
+25 contaminants were measured and came in below the limitShow all
| Contaminant | Measured | Federal limit |
|---|---|---|
| HAA5 | 39.5 ug/L | 60 ug/L |
| TTHM | 40.2 ug/L | 80 ug/L |
| Arsenic | 4.28 ug/L | 10 ug/L |
| Nitrate | 3.53 mg/L | 10 mg/L |
| Chlorine | 1.16 mg/L | 4 mg/L |
| Gross Alpha | 4.17 pCi/L | 15 pCi/L |
| Chromium, Total | 10.2 ug/L | 100 ug/L |
| Combined Radium | 0.5 pCi/L | 5 pCi/L |
| Bromide | 37 ug/L | — |
| Fluoride | Not detected mg/L | 4 mg/L |
| Aluminum | Not detected mg/L | — |
| Barium | Not detected mg/L | 2 mg/L |
| Copper | 0 ug/L | 1300 ug/L |
| Lead | 0.0 mg/L | 0.015 mg/L |
| Lithium | Not detected ug/L | 10 ug/L |
| Manganese | 12 ug/L | — |
| Escherichia coli (E. coli) | 0 | 0 |
| Total Coliform | 0.1 % | — |
| Hexafluoropropylene oxide dimer acid | Not detected ng/L | 10 ng/L |
| Perfluorobutanesulfonic acid | Not detected ng/L | 2000000000000 ng/L |
| PFAS | Not detected ng/L | — |
| PFOA | Not detected ng/L | 4 ng/L |
| PFOS | Not detected ng/L | 4 ng/L |
| TOC | 2375 ug/L | — |
| Uranium | 3.93 pCi/L | 20 pCi/L |
What this report doesn't tell you
11 of the 27 contaminants a community water system normally reports do not appear anywhere in San Joaquin County - Lincoln Village — Stockton, 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-based2 violations on record · most recent Apr 1993resolved
Source: EPA SDWIS / ECHO. View the full federal record on EPA ECHO ↗