Drinking water quality · 2023
· Verified
What's in Del Oro Water Co.-paradise Pines — Chico, Ca, CA tap water
14 contaminants were measured in the Del Oro Water Co.-paradise Pines — Chico, Ca, CA water system's 2023 annual report. Each is shown below against its federal limit — 1 sit at or above that limit.
- Reporting year
- 2023
- Contaminants measured
- 14
- Over federal limit
- 1
- Approaching the limit
- 0
- Worst contaminant
- Barium
- Service area
- CA
Metals
| Contaminant | Measured | Federal limit | Status |
|---|---|---|---|
| BariumA metal from erosion of natural deposits and industrial discharge. | 5.812–9.79 mg/LRangeSystem-wide | 2 mg/LMCL | At or above the limit |
| CopperA metal that enters water from corroding household plumbing. | 0.288 mg/L90th percentileAt the tap | 1.3 mg/LAction level | Within the limit |
| SeleniumA trace element from natural deposits and industrial discharge. | 0–1.08 ug/LRangeSystem-wide | None set | Within the limit |
| LeadA toxic metal that leaches into water from old service lines, solder, and plumbing fixtures. | 0.000674 ug/L90th percentileAt the tap | 15 ug/LAction level | Within the limit |
| Chromium, HexavalentHexavalent chromium ('chromium-6') — the more toxic form of chromium. | 0.56–0.97 ug/LRangeSystem-wide | None set | Detected — no federal limit |
| NickelA metal from natural deposits and industrial discharge. | 0–0.83 ug/LRangeSystem-wide | None set | Detected — no federal 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. | 0–52 ug/LRangeSystem-wide | None set | Within the limit |
Radionuclides
| Contaminant | Measured | Federal limit | Status |
|---|---|---|---|
| Combined RadiumCombined radium-226 and radium-228 — naturally occurring radioactive elements. | 0–2.61 pCi/LRangeSystem-wide | 5 pCi/LMCL | Within the limit |
| Gross AlphaGross alpha particle activity — a combined measure of alpha-emitting radioactive substances. | 0.0566–2.37 pCi/LRangeSystem-wide | 15 pCi/LMCL | Within the limit |
Disinfectants
| Contaminant | Measured | Federal limit | Status |
|---|---|---|---|
| ChlorineA disinfectant added to drinking water to kill bacteria and viruses. | 0.07–0.77 mg/LRangeSystem-wide | 4 mg/LMCL | Within the limit |
Inorganic chemicals
| Contaminant | Measured | Federal limit | Status |
|---|---|---|---|
| NitriteA compound from fertilizer runoff, sewage, and erosion of natural deposits. | 0–0.11 mg/LRangeSystem-wide | 1 mg/LMCL | Within the limit |
| NitrateA compound from fertilizer runoff, septic systems, and erosion of natural deposits. | 0–0.45 mg/LRangeSystem-wide | 10 mg/LMCL | Within the limit |
Other
| Contaminant | Measured | Federal limit | Status |
|---|---|---|---|
| Chromium | 0–1.05 ug/LRangeSystem-wide | None set | Within the limit |
Microbial
| Contaminant | Measured | Federal limit | Status |
|---|---|---|---|
| Escherichia coli (E. coli)Escherichia coli — bacteria found in the gut of humans and animals. | 0MaximumNo. of Detections | None set | None detected |
People also ask about Del Oro Water Co.-paradise Pines — Chico, Ca, CA's water
+Is Del Oro Water Co.-paradise Pines — Chico, Ca, CA tap water safe to drink in 2023?
The 2023 Consumer Confidence Report for the Del Oro Water Co.-paradise Pines — Chico, Ca, CA water utility lists 1 contaminant at or above the federal limit: Barium. Whether that means the water is "unsafe" depends on which contaminant, how long the exposure, and individual health factors. The table on this page shows the measured value, the federal threshold, and the regulated statistic used for compliance.
+What contaminants are in Del Oro Water Co.-paradise Pines — Chico, Ca, CA tap water?
14 contaminants were measured in Del Oro Water Co.-paradise Pines — Chico, Ca, CA's 2023 Consumer Confidence Report, spanning metals, inorganic chemicals, and radionuclides. 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.
+Which contaminants exceed federal limits in Del Oro Water Co.-paradise Pines — Chico, Ca, CA tap water?
One contaminant in Del Oro Water Co.-paradise Pines — Chico, Ca, CA's 2023 report sits at or above the federal limit: Barium (4.9× the limit). The EPA enforces these limits against the regulated reporting statistic — typically a running annual average or 90th percentile — not a one-off sample spike.
+What is the worst contaminant in Del Oro Water Co.-paradise Pines — Chico, Ca, CA tap water?
The contaminant with the highest measured value relative to its federal limit in the 2023 report is Barium, at 4.9× the federal threshold. It belongs to the metals family of contaminants.
+Where does the data on this page come from?
Every value is transcribed from Del Oro Water Co.-paradise Pines — Chico, 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 Del Oro Water Co.-paradise Pines — Chico, 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.