Drinking water quality · 2021
· Verified
What's in El Segundo-city, Water Dept. — El Segundo, Ca, CA tap water
16 contaminants were measured in the El Segundo-city, Water Dept. — El Segundo, Ca, CA water system's 2021 annual report. Each is shown below against its federal limit — 1 sit at or above that limit.
- Reporting year
- 2021
- Contaminants measured
- 16
- Over federal limit
- 1
- Approaching the limit
- 0
- Worst contaminant
- Bromate
- Service area
- CA
Disinfection byproducts
| Contaminant | Measured | Federal limit | Status |
|---|---|---|---|
| BromateA disinfection byproduct formed when bromide-containing water is treated with ozone. | 0–55 ug/LReported levelSkinner Plant | None set | At or above the limit |
+By source (5)— Skinner Plant, Jensen Plant, Mills Plant +2 more
| |||
| TTHMTotal trihalomethanes — a group of four chemicals (including chloroform) formed when chlorine reacts with natural organic matter. | 25–34 ug/LReported levelDiemer Plant | None set | Within the limit |
+By source (5)— Diemer Plant, Weymouth Plant, Jensen Plant +2 more
| |||
| HAA5Haloacetic acids — a group of five disinfection byproducts formed when disinfectants react with organic matter. | 0–13 ug/LReported levelDiemer Plant | None set | Within the limit |
+By source (4)— Diemer Plant, Jensen Plant, Skinner Plant +1 more
| |||
Other
| Contaminant | Measured | Federal limit | Status |
|---|---|---|---|
| Chlorine Total | 0.4–2.5 mg/LReported levelJensen Plant | 4 mg/LMCL | Within the limit |
+By source (5)— Jensen Plant, Diemer Plant, Mills Plant +2 more
| |||
Radionuclides
| Contaminant | Measured | Federal limit | Status |
|---|---|---|---|
| Gross AlphaGross alpha particle activity — a combined measure of alpha-emitting radioactive substances. | 0–4 pCi/LReported levelMills Plant | 15 pCi/LMCL | Within the limit |
+By source (5)— Mills Plant, Skinner Plant, Diemer Plant +2 more
| |||
| Combined RadiumCombined radium-226 and radium-228 — naturally occurring radioactive elements. | 0–1 pCi/LReported levelSkinner Plant | 0.019 pCi/LPublic health goal | Within the limit |
+By source (5)— Skinner Plant, Weymouth Plant, Mills Plant +2 more
| |||
| Gross Beta Particle ActivityGross beta particle activity — a combined measure of beta-emitting radioactive substances. | 0–9 pCi/LReported levelDiemer Plant | None set | Detected — no federal limit |
+By source (5)— Diemer Plant, Skinner Plant, Mills Plant +2 more
| |||
| UraniumA naturally occurring radioactive metal from erosion of natural deposits. | 0–3 pCi/LReported levelJensen Plant | 20 pCi/LMCL | Detected — no federal limit |
+By source (5)— Jensen Plant, Skinner Plant, Weymouth Plant +2 more
| |||
Metals
| Contaminant | Measured | Federal limit | Status |
|---|---|---|---|
| ArsenicA naturally occurring element that also enters water from industry and agriculture. | 2.4 ug/LReported levelJensen Plant | None set | Within the limit |
+By source (5)— Jensen Plant, Weymouth Plant, Diemer Plant +2 more
| |||
| BariumA metal from erosion of natural deposits and industrial discharge. | 111 ug/LReported levelDiemer Plant | 2000 ug/LMCL | Within the limit |
+By source (5)— Diemer Plant, Weymouth Plant, Jensen Plant +2 more
| |||
| AluminumA common element sometimes used as a treatment coagulant. | 0–230 ug/LReported levelSkinner Plant | None set | Detected — no federal limit |
+By source (5)— Skinner Plant, Weymouth Plant, Mills Plant +2 more
| |||
Inorganic chemicals
| Contaminant | Measured | Federal limit | Status |
|---|---|---|---|
| FluorideA mineral often added to drinking water to help prevent tooth decay. | 0.6–0.8 mg/LReported levelMills Plant | 4 mg/LMCL | Within the limit |
+By source (5)— Mills Plant, Weymouth Plant, Skinner Plant +2 more
| |||
| NitrateA compound from fertilizer runoff, septic systems, and erosion of natural deposits. | 0.9 mg/LReported levelJensen Plant | 10 mg/LMCL | Within the limit |
+By source (5)— Jensen Plant, Mills Plant, Weymouth Plant +2 more
| |||
Physical & aggregate
| Contaminant | Measured | Federal limit | Status |
|---|---|---|---|
| TurbidityA measure of cloudiness from suspended particles in the water. | 0.06 NTUReported levelMills Plant | None set | Within the limit |
+By source (5)— Mills Plant, Jensen Plant, Skinner Plant +2 more
| |||
| TOCTotal organic carbon — a measure of organic material dissolved in the water. | 2.3–2.5 mg/LReported levelDiemer Plant | None set | Detected — no federal limit |
+By source (5)— Diemer Plant, Skinner Plant, Weymouth Plant +2 more
| |||
Microbial
| Contaminant | Measured | Federal limit | Status |
|---|---|---|---|
| Total ColiformA group of bacteria used as an indicator of overall water-system sanitation. | 0–0.04 %Reported levelJensen Plant | None set | Detected — no federal limit |
+By source (5)— Jensen Plant, Skinner Plant, Diemer Plant +2 more
| |||
People also ask about El Segundo-city, Water Dept. — El Segundo, Ca, CA's water
+Is El Segundo-city, Water Dept. — El Segundo, Ca, CA tap water safe to drink in 2021?
The 2021 Consumer Confidence Report for the El Segundo-city, Water Dept. — El Segundo, Ca, CA water utility lists 1 contaminant at or above the federal limit: Bromate. 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 El Segundo-city, Water Dept. — El Segundo, Ca, CA tap water?
16 contaminants were measured in El Segundo-city, Water Dept. — El Segundo, Ca, CA's 2021 Consumer Confidence Report, spanning radionuclides, disinfection byproducts, and metals. 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.
+Which contaminants exceed federal limits in El Segundo-city, Water Dept. — El Segundo, Ca, CA tap water?
One contaminant in El Segundo-city, Water Dept. — El Segundo, Ca, CA's 2021 report sits at or above the federal limit: Bromate (5.5× 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 El Segundo-city, Water Dept. — El Segundo, Ca, CA tap water?
The contaminant with the highest measured value relative to its federal limit in the 2021 report is Bromate, at 5.5× the federal threshold. It belongs to the disinfection byproducts family of contaminants.
+Where does the data on this page come from?
Every value is transcribed from El Segundo-city, Water Dept. — El Segundo, Ca, CA's 2021 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 El Segundo-city, Water Dept. — El Segundo, 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 2021 report; a new report will replace it once the utility publishes its next annual update.