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Tap water quality report

Tracy, City of

EPA monitoring tested this supplier for 109 contaminants and detected 19. A detection doesn't automatically mean the water is unsafe — the level and EPA source for each is below.

109
contaminants tested
19
detected
96,609
people served
4
health-based violations
California rankingsLead in CaliforniaPFAS in California
Water source
Surface water
Ownership
Local government
Counties served
San Joaquin

Compliance record

Formal violations the EPA has on file for this supplier. A health-based violation means a contaminant limit or a required treatment was breached; the rest are monitoring or reporting failures — still violations, but not a measured health risk.

4
health-based violations
8
violations on file
0
still open
ViolationTypeStatusPeriod
TT Health-based Resolved 1997-05-01 → 1997-05-31
TT Health-based Resolved 1997-05-01 → 1997-05-31
MCL Health-based Resolved 1992-09-01 → 1993-06-14
MCL Health-based Resolved 1992-09-01 → 1993-06-14
Other Monitoring Resolved 2001-07-01
Other Monitoring Resolved 2001-07-01
Other Monitoring Resolved 2001-07-01
MR Monitoring Resolved 1998-01-01 → 1998-01-31

Other contaminants detected

Each bar shows the measured level as a share of the EPA limit: green is well under, amber is close to it, red is over. For lead and copper the limit applies to exactly the 90th-percentile figure shown, so red there means a real exceedance. For everything else the limit applies to a running annual average while the figure is the 95th percentile of this system's samples — over 100% is worth reading, but is not by itself a violation. Where a single sample came in higher than that percentile, it is noted under the bar. Formal violations are listed separately.
ContaminantLevel vs EPA limitDetection rateSourcePeriod
Chloroform
59 µg/L
No EPA limit set
worst single sample: 96 µg/L
272/277 SYR4 2012–2019
TTHM
71 µg/L 89%
of the EPA limit 80 µg/L
worst single sample: 120 µg/L
272/275 SYR4 2012–2019
Bromodichloromethane
15 µg/L
No EPA limit set
worst single sample: 29 µg/L
262/269 SYR4 2012–2019
Total Haloacetic Acids (HAA5)
40.4 µg/L 67%
of the EPA limit 60 µg/L
worst single sample: 50 µg/L
233/236 SYR4 2012–2019
Dichloroacetic Acid
22 µg/L
No EPA limit set
worst single sample: 27 µg/L
228/236 SYR4 2012–2019
Trichloroacetic Acid
19 µg/L
No EPA limit set
worst single sample: 22 µg/L
225/236 SYR4 2012–2019
Dibromochloromethane
28 µg/L
No EPA limit set
worst single sample: 50 µg/L
139/264 SYR4 2012–2019
Bromoform
26 µg/L
No EPA limit set
worst single sample: 35 µg/L
121/263 SYR4 2012–2019
Nitrate
2835 µg/L 28%
of the EPA limit 10000 µg/L
worst single sample: 3600 µg/L
114/184 SYR4 2012–2019
Dibromoacetic Acid
11 µg/L
No EPA limit set
worst single sample: 13 µg/L
81/236 SYR4 2012–2019
Lead
0.0 mg/L 0%
of the EPA limit 0.0150 mg/L
 39/39 LCR 2024
Fluoride
200 µg/L 5%
of the EPA limit 4000 µg/L
worst single sample: 300 µg/L
35/70 SYR4 2012–2019
Nitrate-Nitrite
797000 µg/L 7970%
of the EPA limit, at the 95th percentile of samples — 10000 µg/L
worst single sample: 970000 µg/L
35/66 SYR4 2012–2019
Arsenic
3.98 µg/L 40%
of the EPA limit 10 µg/L
worst single sample: 5.6 µg/L
29/78 SYR4 2012–2019
Lithium
28.5 µg/L
No EPA limit set
 6/16 UCMR-5 2025
Dichloromethane
1.278 µg/L 26%
of the EPA limit 5 µg/L
worst single sample: 1.4 µg/L
5/117 SYR4 2012–2019
Monobromoacetic Acid
1.27 µg/L
No EPA limit set
worst single sample: 1.3 µg/L
4/236 SYR4 2012–2019
Combined Uranium
2.3542 µg/L 7.8%
of the EPA limit 30 µg/L
worst single sample: 2.384 µg/L
2/9 SYR4 2013–2017
Monochloroacetic Acid
2.1 µg/L
No EPA limit set
 1/236 SYR4 2012–2019
90 contaminants tested, none detected
1,1,1-Trichloroethane1,1,2-Trichloroethane1,1-Dichloroethylene1,2,4-Trichlorobenzene1,2-DIBROMO-3-CHLOROPROPANE1,2-Dichloroethane1,2-Dichloropropane11Cl-PF3OUdS2,3,7,8-TCDD2,4,5-TP2,4-D4:2 Fts6:2 Fts8:2 Fts9Cl-PF3ONSAdonaAntimony, TotalAsbestosAtrazineBhc-GammaBariumBenzeneBenzo(A)PyreneBeryllium, TotalChlorobenzeneCopperCadmiumCarbofuranCarbon TetrachlorideChlordaneChromiumDalaponDi(2-ethylhexyl) AdipateDi(2-ethylhexyl) PhthalateDinosebEthylene DibromideEndothallEndrinEthylbenzeneGlyphosateHexachlorobenzeneHfpo-DaHeptachlorHeptachlor EpoxideHexachlorocyclopentadieneLassoLeadMercuryMethoxychlorNetfosaaNfdhaNmefosaaNitriteOxamylPfbaPFBSPfdaPfdoaPfeesaPfhpaPfhpsPfhxaPFHXSPfmbaPfmpaPFNAPFOAPFOSPfpeaPfpesPftaPftrdaPfunaPentachlorophenolPicloramSeleniumSimazineStyreneTetrachloroethyleneThallium, TotalTolueneTotal Polychlorinated Biphenyls (PCB)ToxapheneTrichloroethyleneVinyl ChlorideXylenes, Totalcis-1,2-DichloroethyleneO-DichlorobenzeneP-Dichlorobenzenetrans-1,2-Dichloroethylene

Utility contact

Contact
EMMONS, HAROLD
Phone
209-831-6302
Email
[email protected]

Frequently asked questions about Tracy, City of

Is Tracy, City of tap water safe to drink?

EPA monitoring detected 19 contaminants in Tracy, City of's water. A detection isn't the same as a violation — most levels are within federal limits. See each level and source above, and the utility's annual Consumer Confidence Report for its official compliance status.

What contaminants were detected in Tracy, City of's water?

EPA monitoring detected Chloroform, TTHM, Bromodichloromethane, Total Haloacetic Acids (HAA5), Dichloroacetic Acid, and others. The full list with the level and data source for each is above.

How many people does Tracy, City of serve?

Tracy, City of reports serving 96,609 people in California, per its EPA record.

Has Tracy, City of had any water quality violations?

The EPA has 8 violations on file for Tracy, City of, of which 4 are health-based (a contaminant limit or required treatment was breached) and 0 remain open. The rest are monitoring or reporting failures.

Where does this data come from?

Every figure is official EPA drinking-water monitoring — the Lead & Copper Rule, the UCMR-5 nationwide testing program, and the EPA Six-Year Review — not our own testing. Each number is labelled with its source and period.