# Hesperia Wd, CA — Drinking Water Quality (2023)

> Contaminant levels for the Hesperia Wd, CA public water system from its 2023 Consumer Confidence Report, compared to federal limits.

- Page: https://www.thewatermap.com/water/ca/hesperia-wd/2023
- JSON API: https://www.thewatermap.com/api/water/ca/hesperia-wd/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: 47
- Contaminants with a federal limit: 32
- 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 |
|---|---|---|---|---|---|
| Bromodichloromethane | Disinfection byproducts | Not detected UG/L (Highest single sample) | Source water | No federal limit | None detected |
| Bromoform | Disinfection byproducts | 0.8 UG/L (Average) | Distribution | No federal limit | Detected — no federal limit |
| Chloroform | Disinfection byproducts | Not detected UG/L (Highest single sample) | Source water | No federal limit | None detected |
| Dibromochloromethane | Disinfection byproducts | Not detected UG/L (Highest single sample) | Source water | No federal limit | None detected |
| HAA5 | Disinfection byproducts | Not detected UG/L (Highest single sample) | Distribution | 60 UG/L (MCL) | None detected |
| TTHM | Disinfection byproducts | Not detected UG/L (Highest single sample) | Distribution | 80 UG/L (MCL) | None detected |
| Fluoride | Inorganic chemicals | 0.31 MG/L (Average) | Source water | 2 MG/L (MCL) | Within the limit |
| Nitrate | Inorganic chemicals | 1.0446666666666666 MG/L (Average) | Source water | 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 |
| Calcium | Metals | Not detected MG/L (Highest single sample) | Source water | No federal limit | None detected |
| Carbon Tetrachloride | Other | Not detected UG/L (Highest single sample) | Source water | 0.5 UG/L (MCL) | None detected |
| Chlorobenzene | Other | Not detected UG/L (Highest single sample) | Source water | 70 UG/L (MCL) | None detected |
| Cis Dichloroethylene 12 | Other | Not detected UG/L (Highest single sample) | Source water | 6 UG/L (MCL) | None detected |
| Dbaa | Other | Not detected UG/L (Highest single sample) | Distribution | No federal limit | None detected |
| Dcaa | Other | Not detected UG/L (Highest single sample) | Distribution | No federal limit | None detected |
| Dichloroethane 12 | Other | Not detected UG/L (Highest single sample) | Source water | 0.5 UG/L (MCL) | None detected |
| Dichloroethylene 11 | Other | Not detected UG/L (Highest single sample) | Source water | 6 UG/L (MCL) | None detected |
| Dichloropropane 12 | Other | Not detected UG/L (Highest single sample) | Source water | 5 UG/L (MCL) | None detected |
| Edb | Other | Not detected UG/L (Highest single sample) | Source water | 0.05 UG/L (MCL) | None detected |
| Mbaa | Other | Not detected UG/L (Highest single sample) | Distribution | No federal limit | None detected |
| Mcaa | Other | Not detected UG/L (Highest single sample) | Distribution | No federal limit | None detected |
| O Dichlorobenzene | Other | Not detected UG/L (Highest single sample) | Source water | 600 UG/L (MCL) | None detected |
| P Dichlorobenzene | Other | Not detected UG/L (Highest single sample) | Source water | 5 UG/L (MCL) | None detected |
| Pce | Other | Not detected UG/L (Highest single sample) | Source water | 5 UG/L (MCL) | None detected |
| Styrene | Other | Not detected UG/L (Highest single sample) | Source water | 100 UG/L (MCL) | None detected |
| Tcaa | Other | Not detected UG/L (Highest single sample) | Distribution | No federal limit | None detected |
| Tce | Other | Not detected UG/L (Highest single sample) | Source water | 5 UG/L (MCL) | None detected |
| Trans Dichloroethylene 12 | Other | Not detected UG/L (Highest single sample) | Source water | 10 UG/L (MCL) | None detected |
| Trichlorobenzene 124 | Other | Not detected UG/L (Highest single sample) | Source water | 5 UG/L (MCL) | None detected |
| Trichloroethane 111 | Other | Not detected UG/L (Highest single sample) | Source water | 200 UG/L (MCL) | None detected |
| Trichloroethane 112 | Other | Not detected UG/L (Highest single sample) | Source water | 5 UG/L (MCL) | None detected |
| Vinyl Chloride | Other | Not detected UG/L (Highest single sample) | Source water | 0.5 UG/L (MCL) | None detected |
| 6:2 Fluorotelomer sulfonic acid (6:2 FTS) | PFAS ("forever chemicals") | 0.0503 µg/L (Highest single sample) | Entry point | No federal limit | Detected — no federal limit |
| Perfluoroheptanoic acid | PFAS ("forever chemicals") | 3.1 ng/L (Highest single sample) | Entry point | No federal limit | Detected — no federal limit |
| Perfluorohexanesulfonic acid | PFAS ("forever chemicals") | 10.5 ng/L (Highest single sample) | Entry point | 10 ng/L (MCL) | At or above the limit |
| Perfluorohexanoic acid | PFAS ("forever chemicals") | 5.4 ng/L (Highest single sample) | Entry point | No federal limit | Detected — no federal limit |
| Perfluoropentanoic acid | PFAS ("forever chemicals") | 4.2 ng/L (Highest single sample) | Entry point | No federal limit | Detected — no federal limit |
| PFOA | PFAS ("forever chemicals") | 10.200000000000001 ng/L (Highest single sample) | Entry point | 4 ng/L (MCL) | At or above the limit |
| PFOS | PFAS ("forever chemicals") | 11.1 ng/L (Highest single sample) | Entry point | 4 ng/L (MCL) | At or above the limit |
| Alkalinity | Physical & aggregate | 51 MG/L (Average) | Source water | No federal limit | Detected — no federal limit |
| Gross Alpha | Radionuclides | Not detected PCI/L (Highest single sample) | Source water | 15 PCI/L (MCL) | None detected |
| 1,2,3-TCP | VOCs & pesticides | Not detected UG/L (Highest single sample) | Source water | 0.005 UG/L (MCL) | None detected |
| Benzene | VOCs & pesticides | Not detected UG/L (Highest single sample) | Source water | 1 UG/L (MCL) | None detected |
| Dichloromethane | VOCs & pesticides | Not detected UG/L (Highest single sample) | Source water | 5 UG/L (MCL) | None detected |
| Ethylbenzene | VOCs & pesticides | Not detected UG/L (Highest single sample) | Source water | 300 UG/L (MCL) | None detected |
| Toluene | VOCs & pesticides | Not detected UG/L (Highest single sample) | Source water | 150 UG/L (MCL) | None detected |
| Xylenes | VOCs & pesticides | Not detected UG/L (Highest single sample) | Source water | 1750 UG/L (MCL) | None detected |

## 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.
- **TTHM** — Total trihalomethanes — a group of four chemicals (including chloroform) formed when chlorine reacts with natural organic matter. Long-term exposure above the federal limit is linked to liver, kidney, and central-nervous-system effects and 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.
- **Nitrite** — A compound from fertilizer runoff, sewage, and erosion of natural deposits. Like nitrate, elevated levels can cause 'blue baby syndrome' in infants.
- **Calcium** — A naturally occurring mineral that contributes to water hardness. Not federally regulated for health; affects scaling and taste.
- **6:2 Fluorotelomer sulfonic acid (6:2 FTS)** — 6:2 fluorotelomer sulfonic acid, a PFAS-related compound. Monitored under EPA rules as part of broad PFAS surveillance.
- **Perfluoroheptanoic acid** — Perfluoroheptanoic acid, a PFAS 'forever chemical.' Monitored under EPA rules; persistent in the environment.
- **Perfluorohexanesulfonic acid** — Perfluorohexanesulfonic acid, a PFAS 'forever chemical.' Regulated by the EPA at 10 parts per trillion and included in the PFAS Hazard Index.
- **Perfluorohexanoic acid** — Perfluorohexanoic acid, a shorter-chain PFAS 'forever chemical.' Monitored under EPA rules; persistent and widely detected.
- **Perfluoropentanoic acid** — Perfluoropentanoic acid, a shorter-chain PFAS 'forever chemical.' Monitored under EPA rules; persistent in the environment.
- **PFOA** — Perfluorooctanoic acid, a PFAS 'forever chemical' once used in nonstick and stain-resistant products. Linked to cancer, liver damage, and immune effects; the EPA set an enforceable limit of 4 parts per trillion.
- **PFOS** — Perfluorooctanesulfonic acid, a PFAS 'forever chemical' once used in firefighting foam and coatings. Linked to cancer, thyroid disease, and immune effects; the EPA set an enforceable limit of 4 parts per trillion.
- **Alkalinity** — A measure of the water's capacity to neutralize acids. Not federally regulated for health; relevant to corrosion control and treatment.
- **Gross Alpha** — Gross alpha particle activity — a combined measure of alpha-emitting radioactive substances. Long-term exposure above the federal limit increases cancer risk.
- **Xylenes** — A group of industrial solvents found in gasoline and paint. Long-term exposure above the federal limit can damage the nervous system.

## 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._