Tap Water Quality Report
Tap water quality in PITTSBURG, California
Tap water in PITTSBURG, California receives a grade of D (62/100) from TapWaterSafety.org. It's served by CITY OF PITTSBURG. The most significant water quality concerns are: Total trihalomethanes (TTHMs) significantly above health guideline; Haloacetic acids (HAA5) significantly above health guideline; Bromodichloromethane significantly above health guideline. Data sources: EPA SDWIS, EPA ECHO, EWG Tap Water Database.
What's in PITTSBURG's tap water
Top water quality concerns identified by the EPA and Environmental Working Group across the utility serving PITTSBURG.
Total trihalomethanes (TTHMs) significantly above health guideline
Moderate concernTotal trihalomethanes (TTHMs) detected at 53.9 ppb, 360x above the EWG health guideline of 0.15 ppb.
Haloacetic acids (HAA5) significantly above health guideline
Moderate concernHaloacetic acids (HAA5) detected at 35.4 ppb, 354x above the EWG health guideline of 0.1 ppb.
Bromodichloromethane significantly above health guideline
Moderate concernBromodichloromethane detected at 13.8 ppb, 230x above the EWG health guideline of 0.06 ppb.
Recommended filters for PITTSBURG
Filters matched to the specific contaminants in PITTSBURG's water supply.
Carbon block (NSF/ANSI 42 + 53)
$40-$750Activated carbon is highly effective for disinfection byproducts like TTHM and HAA5.
Disclosure: TapWaterSafety earns a commission from purchases made through these links. This does not influence our scoring methodology or filter selection.
All contaminants detected in PITTSBURG's tap water
Every contaminant identified, compared side-by-side against US EPA legal limits, the EU Drinking Water Directive (2020/2184), WHO Guidelines, and California's Public Health Goal. Why we show multiple standards →
| Contaminant | Detected | EWG US health-based |
EPA US legal |
EU DWD Europe |
WHO global |
CA PHG strictest US |
Tested sample year |
Status |
|---|---|---|---|---|---|---|---|---|
| Total trihalomethanes (TTHMs) Disinfection byproduct |
53.9 ppb | 0.15 | 80.0 | 100 | — | — | — | 360× over |
| Haloacetic acids (HAA5) Disinfection byproduct |
35.4 ppb | 0.1 | 60.0 | 60 | — | — | — | 354× over |
| Bromodichloromethane Disinfection byproduct |
13.8 ppb | 0.06 | — | — | — | — | — | 230× over |
| Dibromochloromethane Disinfection byproduct |
20.0 ppb | 0.1 | — | — | — | — | — | 200× over |
| Haloacetic acids (HAA9) Disinfection byproduct |
11.9 ppb | 0.06 | — | — | — | — | — | 199× over |
| Dibromoacetic acid Disinfection byproduct |
2.4 ppb | 0.03 | — | — | — | — | — | 80× over |
| Bromoform Disinfection byproduct |
13.7 ppb | 0.5 | — | — | — | — | — | 27× over |
| Bromate* Disinfection byproduct |
2.31 ppb | 0.1 | 10.0 | 10 | 10 | 0.1 | — | 23× over |
| Trichloroacetic acid Disinfection byproduct |
2.02 ppb | 0.1 | — | — | — | — | — | 20× over |
| Chloroform Disinfection byproduct |
6.34 ppb | 0.4 | — | — | — | — | — | 16× over |
| Dichloroacetic acid Disinfection byproduct |
2.37 ppb | 0.2 | — | — | — | — | — | 12× over |
| Uranium Radiological |
3.74 pCi/L | 0.43 | 20.0 | 30 | 30 | 0.43 | — | 8.7× over |
| Chromium (hexavalent) Heavy metal |
0.143 ppb | 0.02 | — | — | — | — | — | 7.1× over |
| Nitrate Inorganic |
0.783 ppm | 0.14 | 10.0 | 11.3 | 11.3 | 10 | — | 5.6× over |
| Nitrate and nitrite* Inorganic |
0.272 ppm | 0.14 | 10.0 | 11.3 | 11.3 | 10 | — | 1.9× over |
| Bromochloromethane Other |
0.0917 ppb | 0.06 | — | — | — | — | — | 1.5× over |
| Manganese Heavy metal |
32.0 ppb | 100.0 | — | 50 | 80 | — | — | Below guideline |
| Vanadium Other |
3.87 ppb | 21.0 | — | — | — | — | — | Below guideline |
| Chlorate* Disinfection byproduct |
34.4 ppb | 210.0 | — | — | — | — | — | Below guideline |
| Molybdenum Other |
2.74 ppb | 40.0 | — | — | — | — | — | Below guideline |
| Aluminum Heavy metal |
15.2 ppb | 600.0 | — | 200 | — | 600 | — | Below guideline |
| Monochloroacetic acid Disinfection byproduct |
0.0773 ppb | 53.0 | — | — | — | — | — | Below guideline |
| Monobromoacetic acid Disinfection byproduct |
0.01 ppb | 25.0 | — | — | — | — | — | Below guideline |
| Strontium Radiological |
0.284 ppb | 1500.0 | — | — | — | — | — | Below guideline |
| Bromide* Other |
64.0 ppb | — | — | — | — | — | — | Below guideline |
| Fluoride Inorganic |
0.603 ppm | — | 4.0 | 1.5 | 1.5 | — | — | Below guideline |
| Lithium Other |
17.0 ppb | — | — | — | — | — | — | Below guideline |
All values in the unit of the detected level. Red cells indicate the detected level exceeds that standard. Some contaminants have limits in some jurisdictions but not others (shown as —). The "Tested" column shows the year each contaminant sample was collected.
Sources: US EPA, EU Drinking Water Directive 2020/2184, WHO Guidelines, California OEHHA PHGs, EWG Tap Water Database.
Treatment plant contact info
For service issues, water quality concerns, or to request a Consumer Confidence Report from CITY OF PITTSBURG.