Drinking water quality · 2021
· Verified
What's in Chowchilla City Water Dept, CA tap water
28 contaminants were measured in the Chowchilla City Water Dept, CA water system's 2021 annual report. Each is shown below against its federal limit.
- Reporting year
- 2021
- Contaminants measured
- 28
- Over federal limit
- 0
- Approaching the limit
- 1
- Service area
- CA
Compliance history
Federal Safe Drinking Water Act violation & enforcement records (EPA SDWIS). A violation is a regulatory determination by the state or EPA — separate from the measured levels above.
- Maximum contaminant level exceededHealth-based6 violations on record · most recent Jul 1995resolved
Source: EPA SDWIS / ECHO. View the full federal record on EPA ECHO ↗
Metals
| Contaminant | Measured | Federal limit | Status |
|---|---|---|---|
| LeadA toxic metal that leaches into water from old service lines, solder, and plumbing fixtures. | 0.014 mg/L90th percentileAt the tap | 0.015 mg/LAction level | Approaching the limit |
| BariumA metal from erosion of natural deposits and industrial discharge. | 0.18 mg/LAverageSystem-wide | 2 mg/LMCL | Within the limit |
| ArsenicA naturally occurring element that also enters water from industry and agriculture. | 0.46 ug/LAverageSystem-wide | None set | Within the limit |
| Chromium, TotalTotal chromium — the sum of all chromium forms, from natural deposits and industrial discharge. | Not detected ug/LRangeSystem-wide | None set | None detected |
| CopperA metal that enters water from corroding household plumbing. | Not detected mg/LAverageSystem-wide | None set | None detected |
| IronA naturally occurring metal common in groundwater. | Not detected ug/LRangeSystem-wide | None set | None detected |
| CalciumA naturally occurring mineral that contributes to water hardness. | 26.8 mg/LAverageSystem-wide | None set | Detected — no federal limit |
| MagnesiumA naturally occurring mineral that contributes to water hardness. | 6.9 mg/LAverageSystem-wide | None set | Detected — no federal limit |
| PotassiumA naturally occurring mineral from rock and soil. | 4.58 mg/LAverageSystem-wide | None set | Detected — no federal limit |
| SodiumA naturally occurring salt component. | 21 mg/LAverageSystem-wide | None set | Detected — no federal limit |
Radionuclides
| Contaminant | Measured | Federal limit | Status |
|---|---|---|---|
| Gross AlphaGross alpha particle activity — a combined measure of alpha-emitting radioactive substances. | 2.1 pCi/LAverageSystem-wide | 15 pCi/LMCL | Within the limit |
| UraniumA naturally occurring radioactive metal from erosion of natural deposits. | 0.52 pCi/LAverageSystem-wide | 20 pCi/LMCL | Detected — no federal limit |
Physical & aggregate
| Contaminant | Measured | Federal limit | Status |
|---|---|---|---|
| TurbidityA measure of cloudiness from suspended particles in the water. | 0.118 NTUAverageSystem-wide | 1 NTUMCL | Within the limit |
| OdorA measure of detectable smell in the water. | Not detectedRangeSystem-wide | None set | None detected |
| AlkalinityA measure of the water's capacity to neutralize acids. | 96.8 mg/LAverageSystem-wide | None set | Detected — no federal limit |
| Bicarbonate | 96.8 mg/LAverageSystem-wide | None set | Detected — no federal limit |
| HardnessA measure of dissolved calcium and magnesium minerals. | 94.8 mg/LAverageSystem-wide | None set | Detected — no federal limit |
| pHA measure of how acidic or basic the water is. | 7.8AverageSystem-wide | None set | Detected — no federal limit |
| Specific ConductanceA measure of how well water conducts electricity, which tracks dissolved mineral content. | 300 uS/cmAverageSystem-wide | None set | Detected — no federal limit |
| Total Dissolved SolidsTotal dissolved solids — the combined content of all dissolved minerals and salts. | 224 mg/LAverageSystem-wide | None set | Detected — no federal limit |
Inorganic chemicals
| Contaminant | Measured | Federal limit | Status |
|---|---|---|---|
| FluorideA mineral often added to drinking water to help prevent tooth decay. | 0.066 mg/LAverageSystem-wide | 4 mg/LMCL | Within the limit |
| NitrateA compound from fertilizer runoff, septic systems, and erosion of natural deposits. | 2.4 ug/LAverageSystem-wide | 10000 ug/LMCL | Within the limit |
| ChlorideA naturally occurring salt compound. | 26.6 mg/LAverageSystem-wide | None set | Detected — no federal limit |
| SulfateA naturally occurring mineral from rock and soil. | 4 mg/LAverageSystem-wide | None set | Detected — no federal limit |
Disinfection byproducts
| Contaminant | Measured | Federal limit | Status |
|---|---|---|---|
| BromoformA trihalomethane disinfection byproduct. | Not detected ug/LRangeSystem-wide | 0.5 ug/LPublic health goal | None detected |
Other
VOCs & pesticides
| Contaminant | Measured | Federal limit | Status |
|---|---|---|---|
| DBCP1,2-dibromo-3-chloropropane — a banned soil fumigant pesticide. | Not detected ug/LRangeSystem-wide | None set | None detected |
People also ask about Chowchilla City Water Dept, CA's water
+Is Chowchilla City Water Dept, CA tap water safe to drink in 2021?
Every one of the 28 contaminants measured in Chowchilla City Water Dept, CA's 2021 Consumer Confidence Report is below its federal limit. "Safe" under the EPA's drinking-water standards is health-based, not aesthetic — but by those standards, no measured contaminant in this report exceeds its enforceable threshold. Individual health concerns (e.g. immunocompromised, infant, pregnancy) may warrant additional filtering regardless of compliance.
+What contaminants are in Chowchilla City Water Dept, CA tap water?
28 contaminants were measured in Chowchilla City Water Dept, CA's 2021 Consumer Confidence Report, spanning metals, physical & aggregate, and inorganic chemicals. 9 have an enforceable federal limit; the rest are detected but unregulated. Every measured value, in the utility's own units, is on this page.
+Are any contaminants in Chowchilla City Water Dept, CA tap water approaching the federal limit?
One contaminant is between 80% and 100% of the federal limit in this report: Lead. Approaching means measured but not in violation — a margin that can close quickly if conditions change.
+Where does the data on this page come from?
Every value is transcribed from Chowchilla City Water Dept, CA's 2021 Consumer Confidence Report — the annual drinking-water report every U.S. public water utility is required by federal law to publish. The original source document is archived and viewable on this site. A water-quality report covers an entire service area, not a single address.
+How often is Chowchilla City Water Dept, CA's water quality data updated?
Each U.S. public water utility publishes one Consumer Confidence Report per year, covering the prior calendar year's measurements. This page reflects the 2021 report; a new report will replace it once the utility publishes its next annual update.