# Rancho Estates Mutual Water Co., CA — Drinking Water Quality (2026)

> Contaminant levels for the Rancho Estates Mutual Water Co., CA public water system from its 2026 Consumer Confidence Report, compared to federal limits.

- Page: https://www.thewatermap.com/water/ca/rancho-estates-mutual-water-co/2026
- JSON API: https://www.thewatermap.com/api/water/ca/rancho-estates-mutual-water-co/2026
- 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: 2026
- Contaminants measured: 4
- Contaminants with a federal limit: 4
- 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 |
|---|---|---|---|---|---|
| Perchlorate | Disinfection byproducts | 1.8 UG/L (Average) | Source water | 6 UG/L (MCL) | Within the limit |
| Nitrate | Inorganic chemicals | 5.733333333333333 MG/L (Average) | Entry point | 10 MG/L (MCL) | Within the limit |
| Nitrite | Inorganic chemicals | Not detected MG/L (Highest single sample) | Source water | 1 MG/L (MCL) | None detected |
| Nitrate Nitrite | Other | 4.7275 MG/L (Average) | Source water | 10 MG/L (MCL) | Within the 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.
- **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.
- **Nitrite** — A compound from fertilizer runoff, sewage, and erosion of natural deposits. Like nitrate, elevated levels can cause 'blue baby syndrome' in infants.

## 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 2026-05-26 from thewatermap.com._