# Camp Williams-resort Water — Manhattan Beach, Ca, CA — Drinking Water Quality (2021)

> Contaminant levels for the Camp Williams-resort Water — Manhattan Beach, Ca, CA public water system from its 2021 Consumer Confidence Report, compared to federal limits.

- Page: https://www.thewatermap.com/water/ca/camp-williams-resort-water-manhattan-beach-ca/2021
- JSON API: https://www.thewatermap.com/api/water/ca/camp-williams-resort-water-manhattan-beach-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: 20
- Contaminants with a federal limit: 5
- Contaminants at or above the federal limit: 3
- Part of The Water Map — https://www.thewatermap.com

## Contaminants measured

| Contaminant | Category | Measured level | Sampling context | Federal limit | Status |
|---|---|---|---|---|---|
| Perchlorate | Disinfection byproducts | 4 ug/L (Reported level) | System-wide | No federal limit | Detected — no federal limit |
| Asbestos | Inorganic chemicals | 0.2 MFL (Reported level) | System-wide | 7 MFL (MCL) | Within the limit |
| Cyanide | Inorganic chemicals | 150 ug/L (Reported level) | System-wide | No federal limit | Within the limit |
| Fluoride | Inorganic chemicals | 1 mg/L (Reported level) | System-wide | No federal limit | Within the limit |
| Nitrate | Inorganic chemicals | 10 mg/L (Reported level) | System-wide | No federal limit | At or above the limit |
| Aluminum | Metals | 50 mg/L (Reported level) | System-wide | No federal limit | Detected — no federal limit |
| Antimony | Metals | 6 ug/L (Reported level) | System-wide | No federal limit | At or above the limit |
| Arsenic | Metals | 2 ug/L (Reported level) | System-wide | No federal limit | Within the limit |
| Beryllium | Metals | 1 ug/L (Reported level) | System-wide | No federal limit | Within the limit |
| Cadmium | Metals | 1 ug/L (Reported level) | System-wide | No federal limit | Within the limit |
| Copper | Metals | Not detected mg/L (90th percentile) | At the tap | 1.3 mg/L (Action level) | None detected |
| Lead | Metals | 0.0039 ug/L (90th percentile) | At the tap | No federal limit | Within the limit |
| Mercury | Metals | 1.2 ug/L (Reported level) | System-wide | No federal limit | Within the limit |
| Nickel | Metals | 12 ug/L (Reported level) | System-wide | No federal limit | Detected — no federal limit |
| Selenium | Metals | 5 ug/L (Reported level) | System-wide | No federal limit | Within the limit |
| Thallium | Metals | 1 ug/L (Reported level) | System-wide | No federal limit | Within the limit |
| Escherichia coli (E. coli) | Microbial | 2021 (Highest single sample) | No. of Detections | 0 (MCLG) | Detected — no federal limit |
| Chromium | Other | 100 ug/L (Reported level) | System-wide | No federal limit | At or above the limit |
| Gross Alpha | Radionuclides | 4 pCi/L (Reported level) | System-wide | 15 pCi/L (MCL) | Within the limit |
| Uranium | Radionuclides | 1 pCi/L (Reported level) | System-wide | 20 pCi/L (MCL) | Detected — no federal limit |

## What these contaminants are

- **Perchlorate** — A chemical used in rocket fuel and fireworks that can also form during disinfection. Can interfere with thyroid hormone production; has no national enforceable limit but is regulated in some states.
- **Fluoride** — A mineral often added to drinking water to help prevent tooth decay. Beneficial at low levels, but long-term exposure above the federal limit can cause bone disease and tooth mottling.
- **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.
- **Aluminum** — A common element sometimes used as a treatment coagulant. Regulated only as a secondary (cosmetic) standard; high levels can discolor water.
- **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.
- **Mercury** — A toxic metal from erosion of natural deposits and industrial runoff. Long-term exposure above the federal limit can damage the kidneys.
- **Nickel** — A metal from natural deposits and industrial discharge. Long-term exposure can cause skin and other effects; monitored under EPA rules.
- **Selenium** — A trace element from natural deposits and industrial discharge. Essential in tiny amounts, but long-term exposure above the federal limit can cause hair and fingernail loss and circulatory problems.
- **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.
- **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._