# Tahoe City Pud - Tahoe Swiss Village — Tahoe City, Ca, CA — Drinking Water Quality (2021)

> Contaminant levels for the Tahoe City Pud - Tahoe Swiss Village — Tahoe City, Ca, CA public water system from its 2021 Consumer Confidence Report, compared to federal limits.

- Page: https://www.thewatermap.com/water/ca/tahoe-city-pud-tahoe-swiss-village-tahoe-city-ca/2021
- JSON API: https://www.thewatermap.com/api/water/ca/tahoe-city-pud-tahoe-swiss-village-tahoe-city-ca/2021
- Source: the utility's annual Consumer Confidence Report (CCR)
- Verification: transcribed by a model, cross-checked by a second model, approved before publishing
- Reporting year: 2021
- Contaminants measured: 7
- Contaminants with a federal limit: 2
- Contaminants at or above the federal limit: 1
- Part of The Water Map — https://www.thewatermap.com

## Contaminants measured

| Contaminant | Category | Measured level | Sampling context | Federal limit | Status |
|---|---|---|---|---|---|
| Arsenic | Metals | 0.002962 mg/L (Reported level) | Grand Well/1 Groundwater | 0.01 mg/L (MCL) | Within the limit |
| Barium | Metals | 0.06 (Reported level) | St. Michael 2 Groundwater | 1 (MCL) | Detected — no federal limit |
| Copper | Metals | 1 mg/L (Reported level) | System-wide | No federal limit | Within the limit |
| Lead | Metals | 0.71 mg/L (Reported level) | Glenridge 3 Groundwater | No federal limit | At or above the limit |
| Gross Alpha | Radionuclides | 6.05 pCi/L (Reported level) | St. Michaels Groundwater | No federal limit | Within the limit |
| Uranium | Radionuclides | 5.52 pCi/L (Reported level) | St. Michaels Groundwater | No federal limit | Detected — no federal limit |
| 1,2,3-TCP | VOCs & pesticides | Not detected (Reported level) | Grand Well/1 Groundwater | No federal limit | None detected |

## What these contaminants are

- **Arsenic** — A naturally occurring element that also enters water from industry and agriculture. A known human carcinogen; long-term exposure is linked to skin, bladder, and lung cancer.
- **Barium** — A metal from erosion of natural deposits and industrial discharge. Long-term exposure above the federal limit can raise blood pressure.
- **Copper** — A metal that enters water from corroding household plumbing. Short-term exposure causes stomach distress; long-term exposure can damage the liver and kidneys.
- **Lead** — A toxic metal that leaches into water from old service lines, solder, and plumbing fixtures. There is no safe level of lead; it harms brain development in children and raises blood pressure in adults. The EPA sets an action level, not a health goal above zero.
- **Gross Alpha** — Gross alpha particle activity — a combined measure of alpha-emitting radioactive substances. Long-term exposure above the federal limit increases cancer risk.
- **Uranium** — A naturally occurring radioactive metal from erosion of natural deposits. Long-term exposure above the federal limit can damage the kidneys and increase cancer risk.

## How to read this

- A water-quality report covers an entire service area, not a single address.
- 'Federal limit' is the EPA standard (MCL, action level, treatment technique, etc.) that the measured level is compared against.
- 'At or above the federal limit' means the utility's own reported figure met or exceeded that standard.

_Figures are the utility's own published numbers. Generated 2026-06-04 from thewatermap.com._