Water Quality Report · Updated May 12, 2026
TRACY, CITY OF
TRACY, CITY OF delivers tap water graded D (61/100) by TapWaterSafety.org. The utility serves approximately 96,609 residents in TRACY, California using surface water. The most significant water quality concerns are: PFAS contamination; Perfluorohexane sulfonate (PFHXS) significantly above health guideline; Haloacetic acids (HAA9) significantly above health guideline; Haloacetic acids (HAA5) significantly above health guideline; Arsenic detected. For questions, the utility can be reached at 209-831-6302.
Is TRACY tap water safe to drink?
TRACY, CITY OF delivers tap water that earns a grade of D (61/100) from TapWaterSafety.org — a below-average rating, with multiple concerns including pfas contamination.
The utility serves 96,609 residents in TRACY, drawing from surface water.
Public testing data identifies 16 contaminants in this water above EWG's health-based guidelines, including: Perfluorohexane sulfonate (PFHXS), Haloacetic acids (HAA9), Haloacetic acids (HAA5), Total trihalomethanes (TTHMs), Trichloroacetic acid, Chromium (hexavalent), Bromodichloromethane, Chloroform, Dichloroacetic acid, Arsenic, Dibromochloromethane, Dibromoacetic acid, Perfluorooctanoic acid (PFOA), Nitrate, Nitrate and nitrite, Bromoform. For most residents, a properly certified home filter at the kitchen tap is the most cost-effective way to reduce exposure to whatever's in your water. See our filter recommendations below, matched specifically to this utility's contaminant profile.
Quick actions for TRACY residents
Top concerns in this water
Based on the most recent EPA and EWG data, these are the most significant water quality issues for TRACY, CITY OF.
PFAS contamination
Severe concernPerfluorooctanoic acid (PFOA) detected. PFAS are persistent chemicals linked to cancer and immune effects with no known safe exposure threshold.
Perfluorohexane sulfonate (PFHXS) significantly above health guideline
Moderate concernPerfluorohexane sulfonate (PFHXS) detected at 1.33 ppt, 1333x above the EWG health guideline of 0.001 ppt.
Haloacetic acids (HAA9) significantly above health guideline
Moderate concernHaloacetic acids (HAA9) detected at 30.8 ppb, 513x above the EWG health guideline of 0.06 ppb.
Haloacetic acids (HAA5) significantly above health guideline
Moderate concernHaloacetic acids (HAA5) detected at 36.2 ppb, 362x above the EWG health guideline of 0.1 ppb.
Arsenic detected
Moderate concernArsenic detected at 0.2 ppb.
Contact TRACY, CITY OF
Reach the utility directly for service issues, water quality concerns, or to request your Consumer Confidence Report.
General Contact
Treatment Plant
Recommended water filters for TRACY
Filters matched to the specific contaminants in this water supply.
Reverse Osmosis or NSF P473 certified carbon
$80-$750Activated carbon and RO are the only technologies proven to remove PFAS at certified levels.
Carbon block (NSF/ANSI 42 + 53)
$40-$750Activated carbon is highly effective for disinfection byproducts like TTHM and HAA5.
Reverse Osmosis
$249-$750Arsenic is most effectively removed by reverse osmosis. Some specialized adsorptive filters also work.
Disclosure: TapWaterSafety earns a commission from purchases made through these links. This does not influence our scoring methodology or filter selection.
Score breakdown
This utility's overall score of 61/100 breaks down across five weighted components. Read the full methodology →
Contaminants detected — international standards comparison
Every contaminant detected, compared side-by-side against US EPA legal limits, the EU Drinking Water Directive (2020/2184), WHO Guidelines, and California's Public Health Goal (the strictest US benchmark). 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 |
|---|---|---|---|---|---|---|---|---|
| Perfluorohexane sulfonate (PFHXS) PFAS |
1.33 ppt | 0.001 | 10.0 | — | — | — | — | 1333× over |
| Haloacetic acids (HAA9) Disinfection byproduct |
30.8 ppb | 0.06 | — | — | — | — | — | 513× over |
| Haloacetic acids (HAA5) Disinfection byproduct |
36.2 ppb | 0.1 | 60.0 | 60 | — | — | — | 362× over |
| Total trihalomethanes (TTHMs) Disinfection byproduct |
36.8 ppb | 0.15 | 80.0 | 100 | — | — | — | 245× over |
| Trichloroacetic acid Disinfection byproduct |
12.2 ppb | 0.1 | — | — | — | — | — | 122× over |
| Chromium (hexavalent) Heavy metal |
2.22 ppb | 0.02 | — | — | — | — | — | 111× over |
| Bromodichloromethane Disinfection byproduct |
4.47 ppb | 0.06 | — | — | — | — | — | 74× over |
| Chloroform Disinfection byproduct |
26.3 ppb | 0.4 | — | — | — | — | — | 66× over |
| Dichloroacetic acid Disinfection byproduct |
11.0 ppb | 0.2 | — | — | — | — | — | 55× over |
| Arsenic Heavy metal |
0.2 ppb | 0.004 | 10.0 | 10 | 10 | 0.004 | — | 50× over |
| Dibromochloromethane Disinfection byproduct |
3.51 ppb | 0.1 | — | — | — | — | — | 35× over |
| Dibromoacetic acid Disinfection byproduct |
0.915 ppb | 0.03 | — | — | — | — | — | 30× over |
| Perfluorooctanoic acid (PFOA) PFAS |
1.08 ppt | 0.09 | 4.0 | 100 | 100 | 0.007 | — | 12× over |
| Nitrate Inorganic |
1.2 ppm | 0.14 | 10.0 | 11.3 | 11.3 | 10 | — | 8.6× over |
| Nitrate and nitrite Inorganic |
1.14 ppm | 0.14 | 10.0 | 11.3 | 11.3 | 10 | — | 8.1× over |
| Bromoform Disinfection byproduct |
2.35 ppb | 0.5 | — | — | — | — | — | 4.7× over |
| Chlorate Disinfection byproduct |
156.0 ppb | 210.0 | — | — | — | — | — | Below guideline |
| Vanadium Other |
3.08 ppb | 21.0 | — | — | — | — | — | Below guideline |
| Manganese Heavy metal |
14.0 ppb | 100.0 | — | 50 | 80 | — | — | Below guideline |
| Bromochloromethane Other |
0.0063 ppb | 0.06 | — | — | — | — | — | Below guideline |
| Molybdenum Other |
1.51 ppb | 40.0 | — | — | — | — | — | Below guideline |
| 1,4-Dioxane Semi-volatile organic compound |
0.00465 ppb | 0.35 | — | — | 50 | 1 | — | Below guideline |
| Barium Heavy metal |
4.2 ppb | 700.0 | 2000.0 | — | 1300 | 2000 | — | Below guideline |
| Monochloroacetic acid Disinfection byproduct |
0.272 ppb | 53.0 | — | — | — | — | — | Below guideline |
| Strontium Radiological |
0.683 ppb | 1500.0 | — | — | — | — | — | Below guideline |
| Perfluorohexanoic Acid (PFHxA) PFAS |
0.187 ppt | 1000.0 | — | — | — | — | — | Below guideline |
| Chromium (total) Heavy metal |
0.973 ppb | — | 100.0 | — | — | — | — | Below guideline |
| Fluoride Inorganic |
0.062 ppm | — | 4.0 | 1.5 | 1.5 | — | — | Below guideline |
| Germanium Other |
0.0875 ppb | — | — | — | — | — | — | Below guideline |
| Lithium Other |
4.36 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 (4th ed.), California OEHHA PHGs, EWG Tap Water Database.
TRACY, CITY OF service area
This water system serves 1 community in San Joaquin County, California. Click any city for its dedicated tap water quality page.
Find the right filter for TRACY water
Browse filter categories by water-quality concern. Each option below is NSF-certified for the matched contaminant type.