Drinking water quality · 2023
· Verified
What's in Chino, City of — Chino, Ca, CA tap water
25 contaminants were measured in the Chino, City of — Chino, Ca, CA water system's 2023 annual report. Each is shown below against its federal limit.
- Reporting year
- 2023
- Contaminants measured
- 25
- Over federal limit
- 0
- Approaching the limit
- 1
- Service area
- CA
state-level CCR
Approaching the limit (≥ 80%)
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.
No federal drinking-water violations on record for this system.
Inorganic chemicals
| Contaminant | Measured | Federal limit | Status |
|---|---|---|---|
| NitrateA compound from fertilizer runoff, septic systems, and erosion of natural deposits. | 1.2–8.4 mg/LRangeCity of Chino | 10 mg/LMCL | Approaching the limit |
+By source (3)— City of Chino, Chino Desalter Authority, Water Facilities Authority
| |||
| FluorideA mineral often added to drinking water to help prevent tooth decay. | 0–0.39 mg/LRangeWater Facilities Authority | 4 mg/LMCL | Within the limit |
+By source (3)— Water Facilities Authority, City of Chino, Chino Desalter Authority
| |||
Disinfection byproducts
| Contaminant | Measured | Federal limit | Status |
|---|---|---|---|
| TTHMTotal trihalomethanes — a group of four chemicals (including chloroform) formed when chlorine reacts with natural organic matter. | 14–57 ug/LRangeCity of Chino | None set | Within the limit |
| HAA5Haloacetic acids — a group of five disinfection byproducts formed when disinfectants react with organic matter. | 0–14 ug/LRangeCity of Chino | None set | Within the limit |
| PerchlorateA chemical used in rocket fuel and fireworks that can also form during disinfection. | 0–3.7 ug/LRangeCity of Chino | None set | Detected — no federal limit |
+By source (2)— City of Chino, Chino Desalter Authority
| |||
Metals
| Contaminant | Measured | Federal limit | Status |
|---|---|---|---|
| ArsenicA naturally occurring element that also enters water from industry and agriculture. | 1.2–4.1 ug/LRangeCity of Chino | None set | Within the limit |
+By source (3)— City of Chino, Chino Desalter Authority, Water Facilities Authority
| |||
| LeadA toxic metal that leaches into water from old service lines, solder, and plumbing fixtures. | 3.8 ug/L90th percentileAt the tap | None set | Within the limit |
| CopperA metal that enters water from corroding household plumbing. | 0.31 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. | 7.8–11 ug/LRangeCity of Chino | None set | Within the limit |
+By source (2)— City of Chino, Chino Desalter Authority
| |||
| AluminumA common element sometimes used as a treatment coagulant. | 0–0.093 mg/LRangeWater Facilities Authority | None set | Detected — no federal limit |
+By source (3)— Water Facilities Authority, City of Chino, Chino Desalter Authority
| |||
| BoronA naturally occurring element from rock and soil. | 0–120 ug/LRangeCity of Chino | None set | Detected — no federal limit |
+By source (2)— City of Chino, Chino Desalter Authority
| |||
| CalciumA naturally occurring mineral that contributes to water hardness. | 54–84 mg/LRangeCity of Chino | None set | Detected — no federal limit |
+By source (3)— City of Chino, Water Facilities Authority, Chino Desalter Authority
| |||
| SodiumA naturally occurring salt component. | 9.8–46 mg/LRangeWater Facilities Authority | None set | Detected — no federal limit |
+By source (3)— Water Facilities Authority, Chino Desalter Authority, City of Chino
| |||
| Vanadium | 1.9–3.9 ug/LRangeWater Facilities Authority | None set | Detected — no federal limit |
+By source (2)— Water Facilities Authority, Chino Desalter Authority
| |||
Radionuclides
| Contaminant | Measured | Federal limit | Status |
|---|---|---|---|
| Gross AlphaGross alpha particle activity — a combined measure of alpha-emitting radioactive substances. | 4.1 pCi/LReported levelCity of Chino | 15 pCi/LMCL | Within the limit |
+By source (3)— City of Chino, Water Facilities Authority, Chino Desalter Authority
| |||
| Combined RadiumCombined radium-226 and radium-228 — naturally occurring radioactive elements. | 0.75–1.1 pCi/LRangeCity of Chino | 5 pCi/LMCL | Within the limit |
| Gross Beta Particle ActivityGross beta particle activity — a combined measure of beta-emitting radioactive substances. | 4.17 pCi/LReported levelCity of Chino | None set | Detected — no federal limit |
| UraniumA naturally occurring radioactive metal from erosion of natural deposits. | 2.8 pCi/LReported levelCity of Chino | 20 pCi/LMCL | Detected — no federal limit |
VOCs & pesticides
| Contaminant | Measured | Federal limit | Status |
|---|---|---|---|
| DBCP1,2-dibromo-3-chloropropane — a banned soil fumigant pesticide. | 0–36 ng/LRangeCity of Chino | None set | Within the limit |
+By source (2)— City of Chino, Chino Desalter Authority
| |||
Disinfectants
| Contaminant | Measured | Federal limit | Status |
|---|---|---|---|
| ChlorineA disinfectant added to drinking water to kill bacteria and viruses. | 0.29–0.68 mg/LRangeCity of Chino | None set | Within the limit |
Other
| Contaminant | Measured | Federal limit | Status |
|---|---|---|---|
| Chromium | 6.7–10 ug/LRangeCity of Chino | None set | Within the limit |
+By source (2)— City of Chino, Chino Desalter Authority
| |||
Microbial
| Contaminant | Measured | Federal limit | Status |
|---|---|---|---|
| Total ColiformA group of bacteria used as an indicator of overall water-system sanitation. | 1.2Reported levelCity of Chino | None set | Detected — no federal limit |
Physical & aggregate
| Contaminant | Measured | Federal limit | Status |
|---|---|---|---|
| AlkalinityA measure of the water's capacity to neutralize acids. | 68–180 mg/LRangeWater Facilities Authority | None set | Detected — no federal limit |
+By source (3)— Water Facilities Authority, City of Chino, Chino Desalter Authority
| |||
| HardnessA measure of dissolved calcium and magnesium minerals. | 180–280 mg/LRangeCity of Chino | None set | Detected — no federal limit |
+By source (3)— City of Chino, Water Facilities Authority, Chino Desalter Authority
| |||
| TOCTotal organic carbon — a measure of organic material dissolved in the water. | 1.6–2.8 mg/LRangeWater Facilities Authority | None set | Detected — no federal limit |
+By source (2)— Water Facilities Authority, Chino Desalter Authority
| |||
Source: Chino, City of — Chino, Ca, CA's 2023 Consumer Confidence Report — the annual drinking-water report every U.S. utility is required to publish. The numbers on this page are the utility's own. A water-quality report covers an entire service area, not a single address.
People also ask about Chino, City of — Chino, Ca, CA's water
+Is Chino, City of — Chino, Ca, CA tap water safe to drink in 2023?
Every one of the 25 contaminants measured in Chino, City of — Chino, Ca, 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 Chino, City of — Chino, Ca, CA tap water?
25 contaminants were measured in Chino, City of — Chino, Ca, CA's 2023 Consumer Confidence Report, spanning metals, radionuclides, and disinfection byproducts. 6 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 Chino, City of — Chino, Ca, CA tap water approaching the federal limit?
One contaminant is between 80% and 100% of the federal limit in this report: Nitrate. 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 Chino, City of — Chino, Ca, 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 Chino, City of — Chino, Ca, 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.
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