Drinking water quality · 2025
· Verified
What's in City of Pittsburg, CA tap water
27 contaminants were measured in the City of Pittsburg, CA water system's 2025 annual report. Each is shown below against its federal limit.
- Reporting year
- 2025
- Contaminants measured
- 27
- Over federal limit
- 0
- Approaching the limit
- 0
- Service area
- CA
PFAS — EPA UCMR5 (2023–2025)
1 PFAS compound detected in City of Pittsburg, 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)below national p90 (76.59999999999991 mg/L across detecting U.S. systems)
Where your water comes from · EPA SDWIS
City of Pittsburg, CA's drinking water comes from ground water, drawn from 2 sources.
Source
- BODEGA WELL
- DOVER WELL
Treatment
- PITTSBURG WTP
Distribution
Also buys water from CONTRA COSTA WATER DISTRICT.
Historical readings · EPA Six-Year Review (2012–2019)
1 contaminant historically over EPA limits in City of Pittsburg, 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) |
|---|---|---|---|
GROSS BETA worst: 2017 | 7.63 mrem/yr 1.9× | 4 mrem/yr | '17 |
ARSENIC worst: 2014 | 0.0085 mg/L 85% near national p90 | 0.01 mg/L | '12'13'14'16'17'18'19 |
DICHLOROMETHANE worst: 2017 | 0.0034 mg/L within | 0.005 mg/L | '17 |
TTHM worst: 2019 | 0.0351 mg/L within | 0.08 mg/L | '18'19 |
CADMIUM worst: 2017 | 0.0016 mg/L within near national p90 | 0.005 mg/L | '17 |
NITRATE worst: 2014 | 2.71 mg/L within | 10 mg/L | '12'13'14'15'16'17'18'19 |
HAA5 worst: 2018 | 0.0134 mg/L within | 0.06 mg/L | '18'19 |
NITRATE NITRITE worst: 2017 | 2.1 mg/L within | 10 mg/L | '17'18 |
SELENIUM worst: 2014 | 0.0088 mg/L within | 0.05 mg/L | '14'17 |
FLUORIDE worst: 2018 | 0.62 mg/L within | 4 mg/L | '12'14'17'18'19 |
BARIUM worst: 2012 | 0.16 mg/L within near national p90 | 2 mg/L | '12'14'16'17'18'19 |
DEHP worst: 2019 | 0.00028 mg/L within | 0.006 mg/L | '19 |
CYANIDE worst: 2018 | 0.0011 mg/L within below national p90 | 0.2 mg/L | '18 |
DEHA worst: 2019 | 0.00021 mg/L within | 0.4 mg/L | '19 |
URANIUM worst: 2017 | 0.0104 ug/L within below national p90 | 30 ug/L | '12'14'17 |
MCAA worst: 2019 | 0.0035 mg/L | — | '19 |
COPPER worst: 2019 | 0.32 mg/L below national p90 | — | '19 |
LEAD worst: 2019 | 0.0028 mg/L | — | '19 |
DBAA worst: 2018 | 0.0051 mg/L | — | '18'19 |
DCAA worst: 2018 | 0.0053 mg/L | — | '18'19 |
TCAA worst: 2018 | 0.0037 mg/L | — | '18'19 |
BROMODICHLOROMETHANE worst: 2018 | 0.0111 mg/L | — | '18'19 |
BROMOFORM worst: 2018 | 0.0053 mg/L | — | '18'19 |
CHLOROFORM worst: 2018 | 0.00732 mg/L | — | '18'19 |
DIBROMOCHLOROMETHANE worst: 2018 | 0.0119 mg/L | — | '18'19 |
Physical & aggregate
| Contaminant | Measured | Federal limit | Status |
|---|---|---|---|
| Total Dissolved SolidsTotal dissolved solids — the combined content of all dissolved minerals and salts. | 360 MG/LAverageEntry point | 1000 MG/LMCL | Within the limit |
| ColorA measure of visible tint in the water. | Not detected UNITSHighest single sampleEntry point | 15 UNITSMCL | None detected |
| AlkalinityA measure of the water's capacity to neutralize acids. | 52.4 MG/LAverageSource water | None set | Detected — no federal limit |
Inorganic chemicals
| Contaminant | Measured | Federal limit | Status |
|---|---|---|---|
| SulfateA naturally occurring mineral from rock and soil. | 67.5 MG/LAverageEntry point | 500 MG/LMCL | Within the limit |
Metals
| Contaminant | Measured | Federal limit | Status |
|---|---|---|---|
| ManganeseA naturally occurring metal from soil and rock. | 3.6666666666666665 UG/LAverageEntry point | 50 UG/LMCL | Within the limit |
| AluminumA common element sometimes used as a treatment coagulant. | 35.333333333333336 UG/LAverageEntry point | 1000 UG/LMCL | Within the limit |
| CalciumA naturally occurring mineral that contributes to water hardness. | Not detected MG/LHighest single sampleSource water | None set | None detected |
| IronA naturally occurring metal common in groundwater. | Not detected UG/LHighest single sampleEntry point | 300 UG/LMCL | None detected |
Other
| Contaminant | Measured | Federal limit | Status |
|---|---|---|---|
| Chlordane | Not detected UG/LHighest single sampleSource water | 0.1 UG/LMCL | None detected |
| Endrin | Not detected UG/LHighest single sampleSource water | 2 UG/LMCL | None detected |
| Heptachlor | Not detected UG/LHighest single sampleSource water | 0.01 UG/LMCL | None detected |
| Heptachlor Epoxide | Not detected UG/LHighest single sampleSource water | 0.01 UG/LMCL | None detected |
| Methoxychlor | Not detected UG/LHighest single sampleSource water | 30 UG/LMCL | None detected |
| Pcb Total | Not detected UG/LHighest single sampleSource water | 0.5 UG/LMCL | None detected |
| Toxaphene | Not detected UG/LHighest single sampleSource water | 3 UG/LMCL | None detected |
| Mbaa | 0.7916666666666666 UG/LAverageDistribution | None set | Detected — no federal limit |
VOCs & pesticides
| Contaminant | Measured | Federal limit | Status |
|---|---|---|---|
| XylenesA group of industrial solvents found in gasoline and paint. | Not detected UG/LHighest single sampleOther | 1750 UG/LMCL | None detected |
People also ask about City of Pittsburg, CA's water
+Is City of Pittsburg, CA tap water safe to drink in 2025?
Every one of the 27 contaminants measured in City of Pittsburg, 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 City of Pittsburg, CA tap water?
27 contaminants were measured in City of Pittsburg, CA's 2025 Consumer Confidence Report, spanning other, disinfection byproducts, and metals. 16 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 City of Pittsburg, 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 City of Pittsburg, 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.