# Placer Cwa - Auburn/bowman — Auburn, Ca, CA — Drinking Water Quality (2022)

> Contaminant levels for the Placer Cwa - Auburn/bowman — Auburn, Ca, CA public water system from its 2022 Consumer Confidence Report, compared to federal limits.

- Page: https://www.thewatermap.com/water/ca/placer-cwa-auburn-bowman-auburn-ca/2022
- JSON API: https://www.thewatermap.com/api/water/ca/placer-cwa-auburn-bowman-auburn-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: 16
- Contaminants with a federal limit: 5
- 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 |
|---|---|---|---|---|---|
| Chlorine | Disinfectants | 0.16–0.76 mg/L (Reported level) | System-wide | No federal limit | Within the limit |
| HAA5 | Disinfection byproducts | 6.2–35.1 ug/L (Reported level) | System-wide | No federal limit | Within the limit |
| TTHM | Disinfection byproducts | 27–60 ug/L (Reported level) | System-wide | No federal limit | Within the limit |
| Fluoride | Inorganic chemicals | 0 mg/L (Reported level) | System-wide | 4 mg/L (MCL) | None detected |
| Nitrate | Inorganic chemicals | 0 mg/L (Reported level) | System-wide | 10 mg/L (MCL) | None detected |
| Nitrite | Inorganic chemicals | 0 mg/L (Reported level) | System-wide | 1 mg/L (MCL) | None detected |
| Calcium | Metals | 2.81–3.17 mg/L (Reported level) | Pcwa | No federal limit | Detected — no federal limit |
| Copper | Metals | 0 mg/L (90th percentile) | At the tap | 1.3 mg/L (Action level) | None detected |
| Lead | Metals | 0.8 ug/L (90th percentile) | At the tap | No federal limit | Within the limit |
| Magnesium | Metals | 0.87–0.96 mg/L (Reported level) | Pcwa | No federal limit | Detected — no federal limit |
| Sodium | Metals | 6.25–6.79 mg/L (Reported level) | Pcwa | No federal limit | Detected — no federal limit |
| Alkalinity | Physical & aggregate | 17.1–17.8 mg/L (Reported level) | Pcwa | No federal limit | Detected — no federal limit |
| Bicarbonate | Physical & aggregate | 14.4–15.8 mg/L (Reported level) | Pcwa | No federal limit | Detected — no federal limit |
| Hardness | Physical & aggregate | 10.6–11.9 mg/L (Reported level) | Pcwa | No federal limit | Detected — no federal limit |
| TOC | Physical & aggregate | 0–1.5 mg/L (Reported level) | System-wide | No federal limit | Detected — no federal limit |
| Combined Radium | Radionuclides | 0–0.83 pCi/L (Reported level) | System-wide | 5 pCi/L (MCL) | Within the 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.
- **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.
- **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.
- **Magnesium** — A naturally occurring mineral that contributes to water hardness. Not federally regulated for health; affects scaling and taste.
- **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.
- **TOC** — Total organic carbon — a measure of organic material dissolved in the water. Not harmful itself, but it is the raw material that forms disinfection byproducts; removal is a treatment requirement.
- **Combined Radium** — Combined radium-226 and radium-228 — naturally occurring radioactive elements. Long-term exposure above the federal limit increases the risk of bone cancer.

## 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._