# Us Army Fort Irwin — Fort Irwin, Ca, CA — Drinking Water Quality (2023)

> Contaminant levels for the Us Army Fort Irwin — Fort Irwin, Ca, CA public water system from its 2023 Consumer Confidence Report, compared to federal limits.

- Page: https://www.thewatermap.com/water/ca/us-army-fort-irwin-fort-irwin-ca/2023
- JSON API: https://www.thewatermap.com/api/water/ca/us-army-fort-irwin-fort-irwin-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: 24
- Contaminants with a federal limit: 3
- 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 |
|---|---|---|---|---|---|
| Bromodichloromethane | Disinfection byproducts | 2.2 ug/L (Average) | System-wide | No federal limit | Detected — no federal limit |
| Bromoform | Disinfection byproducts | 18 ug/L (Average) | System-wide | No federal limit | Detected — no federal limit |
| Chloroform | Disinfection byproducts | 0.97 ug/L (Average) | System-wide | No federal limit | Detected — no federal limit |
| Dibromochloromethane | Disinfection byproducts | 6.9 ug/L (Average) | System-wide | No federal limit | Detected — no federal limit |
| HAA5 | Disinfection byproducts | 4.9 ug/L (Average) | System-wide | No federal limit | Within the limit |
| Ammonia | Inorganic chemicals | 0.08 mg/L (Average) | System-wide | No federal limit | Detected — no federal limit |
| Fluoride | Inorganic chemicals | 1.3 mg/L (Average) | System-wide | 4 mg/L (MCL) | Within the limit |
| Nitrate | Inorganic chemicals | 3.4 mg/L (Average) | System-wide | 10 mg/L (MCL) | Within the limit |
| Arsenic | Metals | 2.9 ug/L (Average) | System-wide | No federal limit | Within the limit |
| Boron | Metals | 823.3 ug/L (Average) | System-wide | No federal limit | Detected — no federal limit |
| Calcium | Metals | 17.9 mg/L (Average) | System-wide | No federal limit | Detected — no federal limit |
| Copper | Metals | 0.015 mg/L (90th percentile) | At the tap | 1.3 mg/L (Action level) | Within the limit |
| Lead | Metals | 1 ug/L (90th percentile) | At the tap | No federal limit | Within the limit |
| Silica | Metals | 57.6 mg/L (Average) | System-wide | No federal limit | Detected — no federal limit |
| Total Coliform | Microbial | 0 (Highest single sample) | Drinking Water Highest Number of Positive Results | No federal limit | None detected |
| Chromium | Other | 3.8 ug/L (Average) | System-wide | No federal limit | Within the limit |
| Dbaa | Other | 2.3 ug/L (Average) | System-wide | No federal limit | Detected — no federal limit |
| Dcaa | Other | 1.2 ug/L (Average) | System-wide | No federal limit | Detected — no federal limit |
| Mbaa | Other | Not detected ug/L (Average) | System-wide | No federal limit | None detected |
| Mcaa | Other | Not detected ug/L (Range) | Range Detected | No federal limit | None detected |
| Tcaa | Other | Not detected ug/L (Average) | System-wide | No federal limit | None detected |
| Alkalinity | Physical & aggregate | 87.5 mg/L (Average) | System-wide | No federal limit | Detected — no federal limit |
| Bicarbonate | Physical & aggregate | 84 mg/L (Average) | System-wide | No federal limit | Detected — no federal limit |
| Hardness | Physical & aggregate | 50.2 mg/L (Average) | System-wide | No federal limit | Detected — no federal limit |

## What these contaminants are

- **Bromodichloromethane** — A trihalomethane disinfection byproduct. Counted within regulated total trihalomethanes; long-term exposure is associated with cancer and reproductive effects.
- **Bromoform** — A trihalomethane disinfection byproduct. Counted within regulated total trihalomethanes; long-term exposure is associated with liver and kidney effects.
- **Chloroform** — A trihalomethane formed when chlorine reacts with organic matter in water. A component of regulated total trihalomethanes; long-term exposure is linked to liver and kidney effects.
- **Dibromochloromethane** — A trihalomethane disinfection byproduct. Part of regulated total trihalomethanes; long-term exposure is linked to nervous-system, liver, and kidney effects.
- **HAA5** — Haloacetic acids — a group of five disinfection byproducts formed when disinfectants react with organic matter. Long-term exposure above the federal limit is associated with an increased cancer risk.
- **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.
- **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.
- **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.
- **Silica** — A naturally occurring compound from sand and rock. Not federally regulated for health; relevant mainly for industrial water use.
- **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.

## 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._