Drinking water quality · 2021
· Verified
· PWSID CA3110001
What's in North Tahoe Pud - Main — Tahoe Vista, Ca, CA tap water
Every one of the 18 core regulated contaminants reported for North Tahoe Pud - Main — Tahoe Vista, Ca, CA came in below its federal limit.
- !18 of 27 core regulated contaminants reported — 9 never appear in this report
- ✓Nothing over a federal limit
- ✓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.
- −0 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
- −1 core regulated contaminants never reported (18/27)
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 →+42 contaminants were measured and came in below the limitShow all
| Contaminant | Measured | Federal limit |
|---|---|---|
| Turbidity | 0.102–0.355 NTU | 1 NTU |
| Chlorine | 0.31–1.26 mg/L | 4 mg/L |
| Gross Alpha | 2.32 pCi/L | 15 pCi/L |
| Copper | 75 ug/L | 1300 ug/L |
| TTHM | 3.9 ug/L | 80 ug/L |
| HAA5 | 1.9 ug/L | 60 ug/L |
| Barium | 44.2 ug/L | 2000 ug/L |
| Perchlorate | Not detected ug/L | — |
| Chloride | 1.8 mg/L | — |
| Fluoride | Not detected mg/L | 4 mg/L |
| Nitrate | Not detected mg/L | 10 mg/L |
| Nitrite | Not detected mg/L | 1 mg/L |
| Sulfate | 1.7 mg/L | — |
| Aluminum | Not detected ug/L | — |
| Arsenic | Not detected ug/L | 10 ug/L |
| Beryllium | Not detected mg/L | 0.004 mg/L |
| Cadmium | Not detected mg/L | 0.005 mg/L |
| Calcium | 17.1 mg/L | — |
| Iron | 2005 ug/L | — |
| Lead | Not detected ug/L | 15 ug/L |
| Magnesium | 8.6 mg/L | — |
| Manganese | Not detected mg/L | — |
| Mercury | Not detected mg/L | 0.002 mg/L |
| Nickel | 20 ug/L | — |
| Selenium | Not detected mg/L | 0.05 mg/L |
| Sodium | 14.6 mg/L | — |
| Thallium | Not detected mg/L | 0.002 mg/L |
| Zinc | Not detected mg/L | — |
| Escherichia coli (E. coli) | 159 | — |
| Total Coliform | 159 | — |
| Chromium | Not detected ug/L | 100 ug/L |
| Alkalinity | 103 mg/L | — |
| Bicarbonate | 126 mg/L | — |
| Color | 3 | — |
| Hardness | 78 mg/L | — |
| Odor | 2014 | — |
| pH | 8.2 | — |
| Specific Conductance | 215 | — |
| Total Dissolved Solids | 112 mg/L | — |
| Combined Radium | 0 pCi/L | 5 pCi/L |
| Radon | 547 pCi/L | — |
| MTBE | Not detected mg/L | — |
What this report doesn't tell you
9 of the 27 contaminants a community water system normally reports do not appear anywhere in North Tahoe Pud - Main — Tahoe Vista, 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-based3 violations on record · most recent Jun 1993resolved
Source: EPA SDWIS / ECHO. View the full federal record on EPA ECHO ↗