# Westminster, CO — Drinking Water Quality (2024)

> Contaminant levels for the Westminster, CO public water system from its 2024 Consumer Confidence Report, compared to federal limits.

- Page: https://www.thewatermap.com/water/co/westminster/2024
- JSON API: https://www.thewatermap.com/api/water/co/westminster/2024
- 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: 2024
- Contaminants measured: 7
- Contaminants with a federal limit: 0
- 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 |
|---|---|---|---|---|---|
| Ammonia | Inorganic chemicals | 0.36–0.63 (Range) | System-wide | No federal limit | Detected — no federal limit |
| Sodium | Metals | 27–28 (Range) | System-wide | No federal limit | Detected — no federal limit |
| Alkalinity | Physical & aggregate | 50–64 (Range) | System-wide | No federal limit | Detected — no federal limit |
| Hardness | Physical & aggregate | 109–8 (Range) | System-wide | No federal limit | Detected — no federal limit |
| pH | Physical & aggregate | 8.4–8.8 (Range) | System-wide | No federal limit | Detected — no federal limit |
| Specific Conductance | Physical & aggregate | 344–451 (Range) | System-wide | No federal limit | Detected — no federal limit |
| Total Dissolved Solids | Physical & aggregate | 209–263 (Range) | System-wide | No federal limit | Detected — no federal limit |

## What these contaminants are

- **Sodium** — A naturally occurring salt component. Not federally regulated for health; relevant for people on sodium-restricted diets.
- **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.
- **pH** — A measure of how acidic or basic the water is. Regulated only as a secondary standard; very low or high pH can corrode pipes or affect taste.
- **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 2026-05-25 from thewatermap.com._