# Evergreen Mutual Water Company — Lancaster, Ca, CA — Drinking Water Quality (2021)

> Contaminant levels for the Evergreen Mutual Water Company — Lancaster, Ca, CA public water system from its 2021 Consumer Confidence Report, compared to federal limits.

- Page: https://www.thewatermap.com/water/ca/evergreen-mutual-water-company-lancaster-ca/2021
- JSON API: https://www.thewatermap.com/api/water/ca/evergreen-mutual-water-company-lancaster-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: 12
- Contaminants with a federal limit: 6
- Contaminants at or above the federal limit: 0
- Part of The Water Map — https://www.thewatermap.com

## Contaminants measured

| Contaminant | Category | Measured level | Sampling context | Federal limit | Status |
|---|---|---|---|---|---|
| Chloride | Inorganic chemicals | 25 mg/L (Reported level) | System-wide | No federal limit | Detected — no federal limit |
| Nitrate | Inorganic chemicals | 6.4 mg/L (Reported level) | System-wide | 10 mg/L (MCL) | Within the limit |
| Sulfate | Inorganic chemicals | 53 mg/L (Reported level) | System-wide | No federal limit | Detected — no federal limit |
| Chromium, Total | Metals | 0.01 ug/L (Reported level) | System-wide | No federal limit | Within the limit |
| Copper | Metals | 0.03 mg/L (90th percentile) | At the tap | 1.3 mg/L (Action level) | Within the limit |
| Lead | Metals | 0 ug/L (90th percentile) | At the tap | No federal limit | Within the limit |
| Escherichia coli (E. coli) | Microbial | 0 (Highest single sample) | No. of Detections | 0 (MCLG) | None detected |
| Specific Conductance | Physical & aggregate | 361 (Reported level) | System-wide | No federal limit | Detected — no federal limit |
| Total Dissolved Solids | Physical & aggregate | 250 mg/L (Reported level) | System-wide | No federal limit | Detected — no federal limit |
| Combined Radium | Radionuclides | 0.5 pCi/L (Reported level) | System-wide | 5 pCi/L (MCL) | Within the limit |
| Gross Alpha | Radionuclides | 4.1 pCi/L (Reported level) | System-wide | 15 pCi/L (MCL) | Within the limit |
| Uranium | Radionuclides | 3.7 pCi/L (Reported level) | System-wide | 20 pCi/L (MCL) | Detected — no federal limit |

## What these contaminants are

- **Chloride** — A naturally occurring salt compound. Regulated only as a secondary (cosmetic) standard; high levels cause a salty taste and can corrode pipes.
- **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.
- **Sulfate** — A naturally occurring mineral from rock and soil. No health-based federal limit; high levels can have a laxative effect and a bitter taste.
- **Chromium, Total** — Total chromium — the sum of all chromium forms, from natural deposits and industrial discharge. Long-term exposure above the federal limit can cause allergic dermatitis; includes hexavalent chromium.
- **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.
- **Escherichia coli (E. coli)** — Escherichia coli — bacteria found in the gut of humans and animals. Its presence in drinking water indicates fecal contamination and a real risk of waterborne illness.
- **Specific Conductance** — A measure of how well water conducts electricity, which tracks dissolved mineral content. Not federally regulated for health; used as a proxy for total dissolved solids.
- **Total Dissolved Solids** — Total dissolved solids — the combined content of all dissolved minerals and salts. Regulated only as a secondary (cosmetic) standard; high levels affect taste and hardness.
- **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._