# Crestview Mutual Water Co — Camarillo, Ca, CA — Drinking Water Quality (2023)

> Contaminant levels for the Crestview Mutual Water Co — Camarillo, Ca, CA public water system from its 2023 Consumer Confidence Report, compared to federal limits.

- Page: https://www.thewatermap.com/water/ca/crestview-mutual-water-co-camarillo-ca/2023
- JSON API: https://www.thewatermap.com/api/water/ca/crestview-mutual-water-co-camarillo-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: 25
- Contaminants with a federal limit: 7
- 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 |
|---|---|---|---|---|---|
| Bromate | Disinfection byproducts | Not detected ug/L (Range) | Locally Produced Groundwater | No federal limit | None detected |
| NDMA | Disinfection byproducts | Not detected ng/L (Average) | Locally Produced Groundwater Treated by Crestview | 10 ng/L (NL) | Detected — no federal limit |
| Fluoride | Inorganic chemicals | 0.2 mg/L (Average) | Locally Produced Groundwater | 4 mg/L (MCL) | Within the limit |
| Nitrate | Inorganic chemicals | 0.6 mg/L (Average) | Imported Surface Water | 10 mg/L (MCL) | Within the limit |
| Aluminum | Metals | 89 ug/L (Average) | Imported Surface Water | No federal limit | Detected — no federal limit |
| Arsenic | Metals | 5 ug/L (Average) | Locally Produced Groundwater | No federal limit | Within the limit |
| Boron | Metals | 0.2 mg/L (Average) | Imported Surface Water delivered by Calleguas Municipal | 1 mg/L (NL) | Detected — no federal limit |
| Calcium | Metals | 96 mg/L (Average) | Locally Produced Groundwater Treated by Crestview | No federal limit | Detected — no federal limit |
| Copper | Metals | 0.1 mg/L (Average) | Locally Produced Groundwater | No federal limit | Within the limit |
| Iron | Metals | 100 ug/L (Average) | Locally Produced Groundwater Treated by Crestview | No federal limit | Detected — no federal limit |
| Lead | Metals | 10.6 ug/L (Average) | Imported Surface Water | No federal limit | Within the limit |
| Magnesium | Metals | 42 mg/L (Average) | Locally Produced Groundwater Treated by Crestview | No federal limit | Detected — no federal limit |
| Potassium | Metals | 6 mg/L (Average) | Locally Produced Groundwater Treated by Crestview | No federal limit | Detected — no federal limit |
| Selenium | Metals | 10 ug/L (Average) | Locally Produced Groundwater | No federal limit | Within the limit |
| Sodium | Metals | 110 mg/L (Average) | Locally Produced Groundwater Treated by Crestview | No federal limit | Detected — no federal limit |
| Total Coliform | Microbial | Not detected (Range) | Imported Surface Water | 0 (Public health goal) | None detected |
| Chlorine Total | Other | 0.6–2.2 mg/L (Average) | Locally Produced Groundwater | No federal limit | Within the limit |
| Alkalinity | Physical & aggregate | 230 mg/L (Average) | Locally Produced Groundwater Treated by Crestview | No federal limit | Detected — no federal limit |
| Hardness | Physical & aggregate | 392 mg/L (Average) | Locally Produced Groundwater Treated by Crestview | No federal limit | Detected — no federal limit |
| pH | Physical & aggregate | 8.3 (Average) | Imported Surface Water delivered by Calleguas Municipal | No federal limit | Detected — no federal limit |
| TOC | Physical & aggregate | Not detected mg/L (Range) | Locally Produced Groundwater | No federal limit | None detected |
| Turbidity | Physical & aggregate | Not detected NTU (Average) | Imported Surface Water | No federal limit | None detected |
| Gross Alpha | Radionuclides | 2.49 pCi/L (Average) | Locally Produced Groundwater | 15 pCi/L (MCL) | Within the limit |
| Gross Beta Particle Activity | Radionuclides | Not detected pCi/L (Average) | Locally Produced Groundwater | No federal limit | None detected |
| Uranium | Radionuclides | Not detected pCi/L (Average) | Locally Produced Groundwater | 20 pCi/L (MCL) | Detected — no federal limit |

## What these contaminants are

- **Bromate** — A disinfection byproduct formed when bromide-containing water is treated with ozone. Classified as a probable human carcinogen; the EPA sets a strict maximum contaminant level.
- **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.
- **Boron** — A naturally occurring element from rock and soil. No enforceable federal limit; the EPA has issued a health advisory level.
- **Calcium** — A naturally occurring mineral that contributes to water hardness. Not federally regulated for health; affects scaling and taste.
- **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.
- **Iron** — A naturally occurring metal common in groundwater. Regulated only as a secondary (cosmetic) standard; causes rusty color, staining, and metallic taste.
- **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.
- **Magnesium** — A naturally occurring mineral that contributes to water hardness. Not federally regulated for health; affects scaling and taste.
- **Potassium** — A naturally occurring mineral from rock and soil. Not federally regulated for health.
- **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.
- **Sodium** — A naturally occurring salt component. Not federally regulated for health; relevant for people on sodium-restricted diets.
- **Total Coliform** — A group of bacteria used as an indicator of overall water-system sanitation. Coliforms themselves are usually harmless, but their presence signals that disease-causing organisms could enter the system.
- **Alkalinity** — A measure of the water's capacity to neutralize acids. Not federally regulated for health; relevant to corrosion control and treatment.
- **Hardness** — A measure of dissolved calcium and magnesium minerals. Not federally regulated for health; affects scaling, soap use, and taste.
- **pH** — A measure of how acidic or basic the water is. Regulated only as a secondary standard; very low or high pH can corrode pipes or affect taste.
- **TOC** — Total organic carbon — a measure of organic material dissolved in the water. Not harmful itself, but it is the raw material that forms disinfection byproducts; removal is a treatment requirement.
- **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.
- **Gross Alpha** — Gross alpha particle activity — a combined measure of alpha-emitting radioactive substances. Long-term exposure above the federal limit increases cancer risk.
- **Gross Beta Particle Activity** — Gross beta particle activity — a combined measure of beta-emitting radioactive substances. Long-term exposure above the federal screening level 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._