Drinking water quality · 2023
· Verified
What's in Corcoran, City of, CA tap water
18 contaminants were measured in the Corcoran, City of, CA water system's 2023 annual report. Each is shown below against its federal limit.
- Reporting year
- 2023
- Contaminants measured
- 18
- Over federal limit
- 0
- Approaching the limit
- 0
- 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-based3 violations on record · most recent Jul 2010resolved
Source: EPA SDWIS / ECHO. View the full federal record on EPA ECHO ↗
Metals
| Contaminant | Measured | Federal limit | Status |
|---|---|---|---|
| ArsenicA naturally occurring element that also enters water from industry and agriculture. | 4.7 ug/LAverageSystem-wide | None set | Within the limit |
| CopperA metal that enters water from corroding household plumbing. | 0.14 mg/L90th percentileAt the tap | 1.3 mg/LAction level | Within the limit |
| Chromium, TotalTotal chromium — the sum of all chromium forms, from natural deposits and industrial discharge. | Not detected ug/LAverageSystem-wide | None set | None detected |
| LeadA toxic metal that leaches into water from old service lines, solder, and plumbing fixtures. | 0.0 mg/L90th percentileAt the tap | 0.015 mg/LAction level | None detected |
| AluminumA common element sometimes used as a treatment coagulant. | 0.25 mg/LAverageSystem-wide | None set | Detected — no federal limit |
| BoronA naturally occurring element from rock and soil. | 0–200 ug/LAverageSystem-wide | None set | Detected — no federal limit |
| Chromium, HexavalentHexavalent chromium ('chromium-6') — the more toxic form of chromium. | 0–2.7 ug/LAverageSystem-wide | None set | Detected — no federal limit |
| Vanadium | 0–34 ug/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. | 6.14 pCi/LAverageSystem-wide | 15 pCi/LMCL | Within the limit |
Disinfection byproducts
| Contaminant | Measured | Federal limit | Status |
|---|---|---|---|
| TTHMTotal trihalomethanes — a group of four chemicals (including chloroform) formed when chlorine reacts with natural organic matter. | 32 ug/LAverageSystem-wide | None set | Within the limit |
| HAA5Haloacetic acids — a group of five disinfection byproducts formed when disinfectants react with organic matter. | 6.8 ug/LAverageSystem-wide | None set | Within the limit |
Inorganic chemicals
| Contaminant | Measured | Federal limit | Status |
|---|---|---|---|
| NitrateA compound from fertilizer runoff, septic systems, and erosion of natural deposits. | 3.8 mg/LAverageSystem-wide | 10 mg/LMCL | Within the limit |
| FluorideA mineral often added to drinking water to help prevent tooth decay. | 0.5 mg/LAverageSystem-wide | 4 mg/LMCL | Within the limit |
| NitriteA compound from fertilizer runoff, sewage, and erosion of natural deposits. | Not detected mg/LAverageSystem-wide | 1 mg/LMCL | None detected |
Other
| Contaminant | Measured | Federal limit | Status |
|---|---|---|---|
| Chlorine Free | 0.69 mg/LAverageSystem-wide | 4 mg/LMCL | Within the limit |
Microbial
| Contaminant | Measured | Federal limit | Status |
|---|---|---|---|
| Escherichia coli (E. coli)Escherichia coli — bacteria found in the gut of humans and animals. | 0Reported levelNo. of detections in 2024 | 0MCLG | None detected |
| Total ColiformA group of bacteria used as an indicator of overall water-system sanitation. | 1Reported levelNo. of detections in 2024 | None set | Detected — no federal limit |
VOCs & pesticides
| Contaminant | Measured | Federal limit | Status |
|---|---|---|---|
| 1,2,3-TCP | Not detectedAverageSystem-wide | None set | None detected |
People also ask about Corcoran, City of, CA's water
+Is Corcoran, City of, CA tap water safe to drink in 2023?
Every one of the 18 contaminants measured in Corcoran, City of, CA's 2023 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 Corcoran, City of, CA tap water?
18 contaminants were measured in Corcoran, City of, CA's 2023 Consumer Confidence Report, spanning metals, inorganic chemicals, and disinfection byproducts. 8 have an enforceable federal limit; the rest are detected but unregulated. Every measured value, in the utility's own units, is on this page.
+Where does the data on this page come from?
Every value is transcribed from Corcoran, City of, CA's 2023 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 Corcoran, City of, 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 2023 report; a new report will replace it once the utility publishes its next annual update.