# Casa Dulce Estates — Agua Dulce, Ca, CA — Drinking Water Quality (2023)

> Contaminant levels for the Casa Dulce Estates — Agua Dulce, Ca, CA public water system from its 2023 Consumer Confidence Report, compared to federal limits.

- Page: https://www.thewatermap.com/water/ca/casa-dulce-estates-agua-dulce-ca/2023
- JSON API: https://www.thewatermap.com/api/water/ca/casa-dulce-estates-agua-dulce-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: 9
- 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 |
|---|---|---|---|---|---|
| Fluoride | Inorganic chemicals | 0.2 mg/L (Average) | System-wide | 4 mg/L (MCL) | Within the limit |
| Nitrate | Inorganic chemicals | 2.8 mg/L (Average) | System-wide | 10 mg/L (MCL) | Within the limit |
| Arsenic | Metals | 7 ug/L (Average) | System-wide | No federal limit | Within the limit |
| Copper | Metals | 2 (Reported level) | FGL Code | No federal limit | Detected — no federal limit |
| Iron | Metals | 2 (Reported level) | Description | No federal limit | Detected — no federal limit |
| Manganese | Metals | 20 ug/L (Average) | System-wide | 500 ug/L (NL) | Detected — no federal limit |
| Total Coliform | Microbial | 0 (Highest single sample) | No. of Detections | 0 (MCLG) | None detected |
| Nitrate Nitrite | Other | 3 mg/L (Average) | System-wide | 10 mg/L (MCL) | Within the limit |
| Gross Alpha | Radionuclides | Not detected pCi/L (Average) | System-wide | 15 pCi/L (MCL) | Within the limit |

## What these contaminants are

- **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.
- **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.
- **Iron** — A naturally occurring metal common in groundwater. Regulated only as a secondary (cosmetic) standard; causes rusty color, staining, and metallic taste.
- **Manganese** — A naturally occurring metal from soil and rock. No enforceable federal limit; high levels stain fixtures and laundry and can affect taste, with a health advisory for infants.
- **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.
- **Gross Alpha** — Gross alpha particle activity — a combined measure of alpha-emitting radioactive substances. Long-term exposure above the federal limit increases 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._