Drinking water quality · 2023
· Verified
What's in Thermalito Water & Sewer Dist — Oroville, Ca, CA tap water
24 contaminants were measured in the Thermalito Water & Sewer Dist — Oroville, Ca, CA water system's 2023 annual report. Each is shown below against its federal limit.
- Reporting year
- 2023
- Contaminants measured
- 24
- Over federal limit
- 0
- Approaching the limit
- 1
- Service area
- CA
Disinfection byproducts
| Contaminant | Measured | Federal limit | Status |
|---|---|---|---|
| HAA5Haloacetic acids — a group of five disinfection byproducts formed when disinfectants react with organic matter. | 35–52 ug/LRangeSystem-wide | None set | Approaching the limit |
| TTHMTotal trihalomethanes — a group of four chemicals (including chloroform) formed when chlorine reacts with natural organic matter. | 35–52 ug/LRangeSystem-wide | None set | Within the limit |
| PerchlorateA chemical used in rocket fuel and fireworks that can also form during disinfection. | Not detected ug/LReported levelSystem-wide | None set | None detected |
Metals
| Contaminant | Measured | Federal limit | Status |
|---|---|---|---|
| ArsenicA naturally occurring element that also enters water from industry and agriculture. | 0–4 ug/LRangeSystem-wide | None set | Within the limit |
| AluminumA common element sometimes used as a treatment coagulant. | Not detected mg/LRangeSystem-wide | None set | None detected |
| Antimony | Not detected ug/LReported levelSystem-wide | None set | None detected |
| BariumA metal from erosion of natural deposits and industrial discharge. | Not detected ug/LReported levelSystem-wide | 2000 ug/LMCL | None detected |
| Beryllium | Not detected ug/LRangeSystem-wide | None set | None detected |
| Cadmium | Not detected ug/LRangeSystem-wide | None set | None detected |
| CopperA metal that enters water from corroding household plumbing. | 0 ug/L90th percentileAt the tap | None set | None detected |
+By source (2)— Number of Schools Requesting Sampling, No. of samples collected
| |||
| LeadA toxic metal that leaches into water from old service lines, solder, and plumbing fixtures. | 0 ug/LReported levelNumber of Schools Requesting Sampling | None set | None detected |
+By source (2)— Number of Schools Requesting Sampling, No. of samples collected
| |||
| MercuryA toxic metal from erosion of natural deposits and industrial runoff. | Not detected ug/LRangeSystem-wide | None set | None detected |
| NickelA metal from natural deposits and industrial discharge. | Not detected ug/LRangeSystem-wide | None set | None detected |
| SeleniumA trace element from natural deposits and industrial discharge. | Not detected ug/LReported levelSystem-wide | None set | None detected |
| Thallium | Not detected ug/LRangeSystem-wide | None set | None detected |
| ManganeseA naturally occurring metal from soil and rock. | 0–20 ug/LRangeSystem-wide | None set | Detected — no federal limit |
| SodiumA naturally occurring salt component. | 8–29 mg/LRangeSystem-wide | None set | Detected — no federal limit |
Inorganic chemicals
| Contaminant | Measured | Federal limit | Status |
|---|---|---|---|
| NitrateA compound from fertilizer runoff, septic systems, and erosion of natural deposits. | 0–2.7 mg/LRangeSystem-wide | 10 mg/LMCL | Within the limit |
| FluorideA mineral often added to drinking water to help prevent tooth decay. | 0–0.4 mg/LRangeSystem-wide | 4 mg/LMCL | Within the limit |
| NitriteA compound from fertilizer runoff, sewage, and erosion of natural deposits. | Not detected mg/LRangeSystem-wide | 1 mg/LMCL | None detected |
Disinfectants
| Contaminant | Measured | Federal limit | Status |
|---|---|---|---|
| ChlorineA disinfectant added to drinking water to kill bacteria and viruses. | 0.72–0.87 mg/LRangeSystem-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. | 0Highest single sampleNo. of Detections | 0MCLG | None detected |
| Total ColiformA group of bacteria used as an indicator of overall water-system sanitation. | 0Highest single sampleNo. of Detections | 0MCLG | None detected |
Other
| Contaminant | Measured | Federal limit | Status |
|---|---|---|---|
| Chromium | Not detected ug/LRangeSystem-wide | None set | None detected |
People also ask about Thermalito Water & Sewer Dist — Oroville, Ca, CA's water
+Is Thermalito Water & Sewer Dist — Oroville, Ca, CA tap water safe to drink in 2023?
Every one of the 24 contaminants measured in Thermalito Water & Sewer Dist — Oroville, 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 Thermalito Water & Sewer Dist — Oroville, Ca, CA tap water?
24 contaminants were measured in Thermalito Water & Sewer Dist — Oroville, Ca, CA's 2023 Consumer Confidence Report, spanning metals, disinfection byproducts, and inorganic chemicals. 7 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 Thermalito Water & Sewer Dist — Oroville, Ca, CA tap water approaching the federal limit?
One contaminant is between 80% and 100% of the federal limit in this report: HAA5. 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 Thermalito Water & Sewer Dist — Oroville, 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 Thermalito Water & Sewer Dist — Oroville, 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.