# Valley of Enchantment Mwc — Crestline, Ca, CA — Drinking Water Quality (2023)

> Contaminant levels for the Valley of Enchantment Mwc — Crestline, Ca, CA public water system from its 2023 Consumer Confidence Report, compared to federal limits.

- Page: https://www.thewatermap.com/water/ca/valley-of-enchantment-mwc-crestline-ca/2023
- JSON API: https://www.thewatermap.com/api/water/ca/valley-of-enchantment-mwc-crestline-ca/2023
- 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: 2023
- Contaminants measured: 10
- Contaminants with a federal limit: 7
- 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 |
|---|---|---|---|---|---|
| Chlorine | Disinfectants | 0.2–0.6 mg/L (Reported level) | VOE System Result (Range or Highest) | 4 mg/L (MCL) | Within the limit |
| Nitrate | Inorganic chemicals | 0–5.8 mg/L (Range) | VOE Groundwater Wells | 10 mg/L (MCL) | Within the limit |
| Arsenic | Metals | 0–3 ug/L (Range) | VOE Groundwater Wells | No federal limit | Within the limit |
| Copper | Metals | 0.36 mg/L (90th percentile) | At the tap | 1.3 mg/L (Action level) | Within the limit |
| Lead | Metals | 5 ug/L (90th percentile) | At the tap | No federal limit | Within the limit |
| PFOS | PFAS ("forever chemicals") | 0–7.1 (Range) | VOE Groundwater Wells | 6.5 (NL) | Detected — no federal limit |
| Turbidity | Physical & aggregate | 0.57 (Reported level) | System-wide | No federal limit | Detected — no federal limit |
| Combined Radium | Radionuclides | 0–1 pCi/L (Range) | VOE Groundwater Wells | 5 pCi/L (MCL) | Within the limit |
| Gross Alpha | Radionuclides | 0–22.5 pCi/L (Range) | VOE Groundwater Wells | 15 pCi/L (MCL) | At or above the limit |
| Uranium | Radionuclides | 0–18 pCi/L (Range) | VOE Groundwater Wells | 20 pCi/L (MCL) | Detected — no federal limit |

## What these contaminants are

- **Chlorine** — A disinfectant added to drinking water to kill bacteria and viruses. Effective and necessary, but high residual levels can cause taste and odor issues; the EPA caps the residual disinfectant level.
- **Nitrate** — A compound from fertilizer runoff, septic systems, and erosion of natural deposits. Levels above the federal limit can cause 'blue baby syndrome,' a serious oxygen-transport condition in infants.
- **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.
- **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.
- **PFOS** — Perfluorooctanesulfonic acid, a PFAS 'forever chemical' once used in firefighting foam and coatings. Linked to cancer, thyroid disease, and immune effects; the EPA set an enforceable limit of 4 parts per trillion.
- **Turbidity** — A measure of cloudiness from suspended particles in the water. High turbidity can shelter microbes from disinfection; the EPA enforces it through a treatment-technique standard.
- **Combined Radium** — Combined radium-226 and radium-228 — naturally occurring radioactive elements. Long-term exposure above the federal limit increases the risk of bone cancer.
- **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._