Drinking water quality · 2025
· Verified
What's in Covina-city, Water Dept., CA tap water
14 contaminants were measured in the Covina-city, Water Dept., CA water system's 2025 annual report. Each is shown below against its federal limit.
- Reporting year
- 2025
- Contaminants measured
- 14
- Over federal limit
- 0
- Approaching the limit
- 0
- Service area
- CA
PFAS — EPA UCMR5 (2023–2025)
1 PFAS compound detected in Covina-city, Water Dept., CA
The EPA finalized the first-ever federal drinking-water limits for six PFAS compounds in April 2024. These numbers come straight from EPA's UCMR5 lab dataset — every U.S. system serving more than 3,300 people tested every PFAS sample at an entry point to its distribution system. PFAS not listed below were either tested and not detected, or not yet sampled.
Lithium
● Detected (no federal limit)near national p90 (76.59999999999991 mg/L across detecting U.S. systems)
Where your water comes from · EPA SDWIS
Covina-city, Water Dept., CA buys its drinking water from COVINA IRRIGATING CO., THREE VALLEYS MWD.
Source
Treatment
Distribution
Also buys water from COVINA IRRIGATING CO., THREE VALLEYS MWD.
Historical readings · EPA Six-Year Review (2012–2019)
2 contaminants historically over EPA limits in Covina-city, Water Dept., CA
Every U.S. public water system reports compliance-monitoring data to EPA. The Six-Year Review releases the 2012–2019 window as a single dataset — here's what your system reported, year by year. Values shown are the highest detection per analyte per year, compared to the federal MCL.
| Contaminant | Worst detection | EPA limit | Years (2012–2019) |
|---|---|---|---|
TTHM worst: 2014 | 0.12 mg/L 1.5× | 0.08 mg/L | '12'13'14'15'16'17'18'19 |
HAA5 worst: 2014 | 0.062 mg/L 1.0× | 0.06 mg/L | '12'13'14'15'16'17'18'19 |
DBAA worst: 2012 | 0.013 mg/L | — | '12'13'14'15'16'17'18'19 |
DCAA worst: 2012 | 0.019 mg/L | — | '12'13'14'15'16'17'18'19 |
MBAA worst: 2014 | 0.0067 mg/L | — | '14 |
TCAA worst: 2012 | 0.019 mg/L | — | '12'13'14'15'16'17'18'19 |
BROMODICHLOROMETHANE worst: 2012 | 0.019 mg/L | — | '12'13'14'15'16'17'18'19 |
BROMOFORM worst: 2012 | 0.019 mg/L | — | '12'13'14'15'16'17'18'19 |
CHLOROFORM worst: 2012 | 0.048 mg/L | — | '12'13'14'15'16'17'18'19 |
DIBROMOCHLOROMETHANE worst: 2012 | 0.035 mg/L | — | '12'13'14'15'16'17'18'19 |
Metals
| Contaminant | Measured | Federal limit | Status |
|---|---|---|---|
| CopperA metal that enters water from corroding household plumbing. | 255.99999999999997 UG/L90th percentileDistribution | 1300 UG/LAl | Within the limit |
| LeadA toxic metal that leaches into water from old service lines, solder, and plumbing fixtures. | 5.65 UG/LAverageDistribution | None set | Detected — no federal limit |
Other
| Contaminant | Measured | Federal limit | Status |
|---|---|---|---|
| Mcaa | 1.2 UG/LAverageDistribution | None set | Detected — no federal limit |
People also ask about Covina-city, Water Dept., CA's water
+Is Covina-city, Water Dept., CA tap water safe to drink in 2025?
Every one of the 14 contaminants measured in Covina-city, Water Dept., CA's 2025 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 Covina-city, Water Dept., CA tap water?
14 contaminants were measured in Covina-city, Water Dept., CA's 2025 Consumer Confidence Report, spanning disinfection byproducts, other, and metals. 3 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 Covina-city, Water Dept., CA's 2025 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 Covina-city, Water Dept., 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 2025 report; a new report will replace it once the utility publishes its next annual update.