Drinking water quality · 2023
· Verified
What's in Compton-city, Water Dept. — Compton, Ca, CA tap water
23 contaminants were measured in the Compton-city, Water Dept. — Compton, Ca, CA water system's 2023 annual report. Each is shown below against its federal limit.
- Reporting year
- 2023
- Contaminants measured
- 23
- Over federal limit
- 0
- Approaching the limit
- 0
- Service area
- CA
state-level CCR
Disinfection byproducts
| Contaminant | Measured | Federal limit | Status |
|---|---|---|---|
| TTHMTotal trihalomethanes — a group of four chemicals (including chloroform) formed when chlorine reacts with natural organic matter. | 31.3 ug/LRunning annual avgDistribution System Highest | None set | Within the limit |
+By source (2)— Distribution System, Distribution System Highest
| |||
| HAA5Haloacetic acids — a group of five disinfection byproducts formed when disinfectants react with organic matter. | 6.6 ug/LRunning annual avgDistribution System Highest | None set | Within the limit |
+By source (2)— Distribution System, Distribution System Highest
| |||
Other
| Contaminant | Measured | Federal limit | Status |
|---|---|---|---|
| Chlorine Total | 1.12 mg/LRunning annual avgDistribution System Highest | 4 mg/LMCL | Within the limit |
+By source (2)— Distribution System, Distribution System Highest
| |||
| Cis Dichloroethylene 12 | 0.3AverageGroundwater | None set | Detected — no federal limit |
Metals
| Contaminant | Measured | Federal limit | Status |
|---|---|---|---|
| ArsenicA naturally occurring element that also enters water from industry and agriculture. | 2.5 ug/LAverageGroundwater | None set | Within the limit |
| CopperA metal that enters water from corroding household plumbing. | 0.19 mg/L90th percentileDISTRIBUTION SYSTEM 90%ile | 1.3 mg/LAction level | Within the limit |
| BariumA metal from erosion of natural deposits and industrial discharge. | 0.09 mg/LAverageGroundwater | 2 mg/LMCL | Within the limit |
| AluminumA common element sometimes used as a treatment coagulant. | Not detected mg/LRangeGroundwater | None set | None detected |
| LeadA toxic metal that leaches into water from old service lines, solder, and plumbing fixtures. | 0 ug/L90th percentileDISTRIBUTION SYSTEM 90%ile | None set | None detected |
| Chromium, HexavalentHexavalent chromium ('chromium-6') — the more toxic form of chromium. | 0.13 ug/LAverageGroundwater | None set | Detected — no federal limit |
| LithiumA naturally occurring element found in some groundwater. | 8.75AverageSystem-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. | 0.3 mg/LAverageGroundwater | 4 mg/LMCL | Within the limit |
| NitrateA compound from fertilizer runoff, septic systems, and erosion of natural deposits. | 0.3 mg/LAverageGroundwater | 10 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. | 0 %AverageDistribution System Average % Positive | None set | None detected |
+By source (2)— Distribution System Average % Positive, Distribution System Range %
| |||
| Total ColiformA group of bacteria used as an indicator of overall water-system sanitation. | 0.3 %AverageDistribution System Average % Positive | None set | Detected — no federal limit |
+By source (2)— Distribution System Range %, Distribution System Average % Positive
| |||
Radionuclides
| Contaminant | Measured | Federal limit | Status |
|---|---|---|---|
| Combined RadiumCombined radium-226 and radium-228 — naturally occurring radioactive elements. | Not detectedAverageGroundwater | 5MCL | None detected |
| Gross AlphaGross alpha particle activity — a combined measure of alpha-emitting radioactive substances. | 3.5AverageGroundwater | 15MCL | Detected — no federal limit |
| UraniumA naturally occurring radioactive metal from erosion of natural deposits. | 3.2AverageGroundwater | 20MCL | Detected — no federal limit |
PFAS ("forever chemicals")
| Contaminant | Measured | Federal limit | Status |
|---|---|---|---|
| Perfluorohexanesulfonic acidPerfluorohexanesulfonic acid, a PFAS 'forever chemical.' | 0.0004AverageSystem-wide | None set | Detected — no federal limit |
| PFOAPerfluorooctanoic acid, a PFAS 'forever chemical' once used in nonstick and stain-resistant products. | 0.00062AverageSystem-wide | None set | Detected — no federal limit |
| PFOSPerfluorooctanesulfonic acid, a PFAS 'forever chemical' once used in firefighting foam and coatings. | 0.0014AverageSystem-wide | None set | Detected — no federal limit |
VOCs & pesticides
| Contaminant | Measured | Federal limit | Status |
|---|---|---|---|
| TetrachloroethyleneAn industrial solvent (PCE) used in dry cleaning and degreasing. | 0.2AverageGroundwater | 5MCL | Detected — no federal limit |
| TrichloroethyleneAn industrial solvent (TCE) used in metal degreasing. | 0.4AverageGroundwater | 5MCL | Detected — no federal limit |
Source: Compton-city, Water Dept. — Compton, 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 Compton-city, Water Dept. — Compton, Ca, CA's water
+Is Compton-city, Water Dept. — Compton, Ca, CA tap water safe to drink in 2023?
Every one of the 23 contaminants measured in Compton-city, Water Dept. — Compton, 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 Compton-city, Water Dept. — Compton, Ca, CA tap water?
23 contaminants were measured in Compton-city, Water Dept. — Compton, Ca, CA's 2023 Consumer Confidence Report, spanning metals, pfas ("forever chemicals"), and radionuclides. 10 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 Compton-city, Water Dept. — Compton, 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 Compton-city, Water Dept. — Compton, 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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