Drinking water quality · 2023
· Verified
· PWSID CA3610703
What's in Usmc - 29 Palms — Twentynine Palms, Ca, CA tap water
Only 5 of 27 core regulated contaminants were reported for Usmc - 29 Palms — Twentynine Palms, Ca, CA. What was measured is not clean — but most of the picture is missing.
- !1 contaminant at or above a federal limit — worst is Chromium at 6.5x
- !5 of 27 core regulated contaminants reported — 22 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
- −22 core regulated contaminants never reported (5/27)
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
- Chromium6.5× the federal limit0.65 mg/L · limit 0.1 mg/L
Higher than 95% of CA systems that report it · higher than 95% of U.S. systems
+24 contaminants were measured and came in below the limitShow all
| Contaminant | Measured | Federal limit |
|---|---|---|
| Arsenic | 0.0028 mg/L | 0.01 mg/L |
| Turbidity | 0.14 NTU | 1 NTU |
| Fluoride | 0.24 mg/L | 4 mg/L |
| Boron | 159 | 1000 |
| Iron | 0.06 mg/L | — |
| Lithium | Not detected | — |
| Manganese | 0.01 mg/L | — |
| Total Coliform | Not detected | — |
| Hexafluoropropylene oxide dimer acid | 1996 | — |
| N-ethyl perfluorooctanesulfonamidoacetic acid (NEtFOSAA) | Not detected | — |
| N-methyl perfluorooctanesulfonamidoacetic acid (NMeFOSAA) | Not detected | — |
| Perfluorodecanoic acid (PFDA) | Not detected | — |
| Perfluorododecanoic acid (PFDoA) | Not detected | — |
| Perfluoroheptanesulfonic acid (PFHpS) | Not detected | — |
| Perfluoropentanesulfonic acid (PFPeS) | Not detected | — |
| Perfluorotetradecanoic acid (PFTeDA) | Not detected | — |
| Perfluorotridecanoic acid (PFTrDA) | Not detected | — |
| Perfluoroundecanoic acid (PFUnA) | Not detected | — |
| PFAS | 1996 | — |
| PFBA | 1996 | — |
| PFOA | Not detected ng/L | 4 ng/L |
| Color | 3 | — |
| Odor | 1 | — |
| Total Dissolved Solids | 138 mg/L | — |
What this report doesn't tell you
22 of the 27 contaminants a community water system normally reports do not appear anywhere in Usmc - 29 Palms — Twentynine Palms, 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-based3 violations on record · most recent Mar 2008resolved
Source: EPA SDWIS / ECHO. View the full federal record on EPA ECHO ↗