# Westmorland, City of — Westmorland, Ca, CA — Drinking Water Quality (2022)

> Contaminant levels for the Westmorland, City of — Westmorland, Ca, CA public water system from its 2022 Consumer Confidence Report, compared to federal limits.

- Page: https://www.thewatermap.com/water/ca/westmorland-westmorland-ca/2022
- JSON API: https://www.thewatermap.com/api/water/ca/westmorland-westmorland-ca/2022
- 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: 2022
- Contaminants measured: 17
- Contaminants with a federal limit: 6
- Contaminants at or above the federal limit: 2
- Part of The Water Map — https://www.thewatermap.com

## Contaminants measured

| Contaminant | Category | Measured level | Sampling context | Federal limit | Status |
|---|---|---|---|---|---|
| Chlorine | Disinfectants | 1.3 mg/L (Running annual avg) | Highest 2023 LRAA or 4 quarter | 4 mg/L (MCL) | Within the limit |
| HAA5 | Disinfection byproducts | 20 ug/L (Running annual avg) | Highest 2023 LRAA or 4 quarter | No federal limit | Within the limit |
| TTHM | Disinfection byproducts | 82 ug/L (Running annual avg) | Highest 2023 LRAA or 4 quarter | No federal limit | At or above the limit |
| Chloride | Inorganic chemicals | 130 (Running annual avg) | Highest 2023 LRAA or 4 quarter | No federal limit | Detected — no federal limit |
| Fluoride | Inorganic chemicals | 0.42 mg/L (Running annual avg) | Highest 2023 LRAA or 4 quarter | 4 mg/L (MCL) | Within the limit |
| Sulfate | Inorganic chemicals | 290 (Running annual avg) | Highest 2023 LRAA or 4 quarter | No federal limit | Detected — no federal limit |
| Aluminum | Metals | 0.22 mg/L (Running annual avg) | Highest 2023 LRAA or 4 quarter | No federal limit | Detected — no federal limit |
| Arsenic | Metals | 3.4 ug/L (Running annual avg) | Highest 2023 LRAA or 4 quarter | 10 ug/L (MCL) | Within the limit |
| Barium | Metals | 150 mg/L (Running annual avg) | Highest 2023 LRAA or 4 quarter | 2 mg/L (MCL) | At or above the limit |
| Copper | Metals | Not detected mg/L (90th percentile) | At the tap | 1.3 mg/L (Action level) | None detected |
| Lead | Metals | Not detected ug/L (90th percentile) | At the tap | No federal limit | None detected |
| Manganese | Metals | 47 (Running annual avg) | Highest 2023 LRAA or 4 quarter | No federal limit | Detected — no federal limit |
| Zinc | Metals | 61 (Running annual avg) | Highest 2023 LRAA or 4 quarter | No federal limit | Detected — no federal limit |
| Total Coliform | Microbial | 0 (Highest single sample) | Highest # of Detections | 0 (Public health goal) | None detected |
| Chromium | Other | 140 (Running annual avg) | Highest 2023 LRAA or 4 quarter | No federal limit | Detected — no federal limit |
| Specific Conductance | Physical & aggregate | 1200 (Running annual avg) | Highest 2023 LRAA or 4 quarter | No federal limit | Detected — no federal limit |
| Total Dissolved Solids | Physical & aggregate | 760 (Running annual avg) | Highest 2023 LRAA or 4 quarter | No federal limit | Detected — no federal limit |

## What these contaminants are

- **Chlorine** — A disinfectant added to drinking water to kill bacteria and viruses. Effective and necessary, but high residual levels can cause taste and odor issues; the EPA caps the residual disinfectant level.
- **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.
- **Chloride** — A naturally occurring salt compound. Regulated only as a secondary (cosmetic) standard; high levels cause a salty taste and can corrode pipes.
- **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.
- **Sulfate** — A naturally occurring mineral from rock and soil. No health-based federal limit; high levels can have a laxative effect and a bitter taste.
- **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.
- **Barium** — A metal from erosion of natural deposits and industrial discharge. Long-term exposure above the federal limit can raise blood pressure.
- **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.
- **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.
- **Zinc** — A naturally occurring metal that can also enter water from corroding pipes. Regulated only as a secondary (cosmetic) standard; high levels cause a metallic taste.
- **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.
- **Specific Conductance** — A measure of how well water conducts electricity, which tracks dissolved mineral content. Not federally regulated for health; used as a proxy for total dissolved solids.
- **Total Dissolved Solids** — Total dissolved solids — the combined content of all dissolved minerals and salts. Regulated only as a secondary (cosmetic) standard; high levels affect taste and hardness.

## 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._