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Tap water quality report

City of Yuma

EPA monitoring tested this supplier for 104 contaminants and detected 15. A detection doesn't automatically mean the water is unsafe — the level and EPA source for each is below.

104
contaminants tested
15
detected
103,264
people served
93
health-based violations
Arizona rankingsLead in ArizonaPFAS in Arizona
Water source
Surface water
Ownership
Local government
Counties served
Yuma

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.

93
health-based violations
447
violations on file
0
still open
ViolationTypeStatusPeriod
MRDL Health-based Resolved 2022-03-01 → 2022-03-31
MRDL Health-based Resolved 2022-03-01 → 2022-03-31
MRDL Health-based Resolved 2022-03-01 → 2022-03-31
MRDL Health-based Resolved 2022-03-01 → 2022-03-31
MRDL Health-based Resolved 2022-02-01 → 2022-02-28
MRDL Health-based Resolved 2022-02-01 → 2022-02-28
MRDL Health-based Resolved 2022-02-01 → 2022-02-28
MRDL Health-based Resolved 2022-02-01 → 2022-02-28
MRDL Health-based Resolved 2022-01-01 → 2022-01-31
MRDL Health-based Resolved 2022-01-01 → 2022-01-31

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
Chlorite
416 µg/L 42%
of the EPA limit 1000 µg/L
worst single sample: 580 µg/L
369/372 SYR4 2014–2019
Copper
126 µg/L 9.7%
of the EPA limit 1300 µg/L
worst single sample: 440 µg/L
309/315 SYR4 2012–2018
Total Haloacetic Acids (HAA5)
17 µg/L 28%
of the EPA limit 60 µg/L
worst single sample: 21 µg/L
256/256 SYR4 2012–2019
TTHM
86.9 µg/L 109%
of the EPA limit, at the 95th percentile of samples — 80 µg/L
worst single sample: 110 µg/L
255/256 SYR4 2012–2019
Lead
8.59 µg/L 57%
of the EPA limit 15 µg/L
worst single sample: 11 µg/L
55/315 SYR4 2012–2018
Nitrate
320 µg/L 3.2%
of the EPA limit 10000 µg/L
worst single sample: 340 µg/L
54/66 SYR4 2012–2019
Barium
120 µg/L 6%
of the EPA limit 2000 µg/L
 17/17 SYR4 2012–2019
Fluoride
498 µg/L 12%
of the EPA limit 4000 µg/L
worst single sample: 530 µg/L
17/17 SYR4 2012–2019
Arsenic
3 µg/L 30%
of the EPA limit 10 µg/L
worst single sample: 3.9 µg/L
16/17 SYR4 2012–2019
Nitrate-Nitrite
292 µg/L 2.9%
of the EPA limit 10000 µg/L
worst single sample: 310 µg/L
13/16 SYR4 2012–2019
Lead
0.0011 mg/L 7.3%
of the EPA limit 0.0150 mg/L
 11/11 LCR 2024
Lithium
150 µg/L
No EPA limit set
 8/8 UCMR-5 2024
Combined Uranium
3.925 µg/L 13%
of the EPA limit 30 µg/L
worst single sample: 4 µg/L
2/2 SYR4 2017
Chromium
1 µg/L 1%
of the EPA limit 100 µg/L
 1/17 SYR4 2012–2019
Gross Alpha, Excl. Radon And U
0.2000 pCi/L 1.3%
of the EPA limit 15 pCi/L
 1/2 SYR4 2017
89 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-GammaBenzeneBenzo(A)PyreneBeryllium, TotalChlorobenzeneCyanideCadmiumCarbofuranCarbon TetrachlorideChlordaneCombined Radium (-226 And -228)DichloromethaneDalaponDi(2-ethylhexyl) AdipateDi(2-ethylhexyl) PhthalateDinosebDiquatEthylene DibromideEndothallEndrinEthylbenzeneGlyphosateHexachlorobenzeneHfpo-DaHeptachlorHeptachlor EpoxideHexachlorocyclopentadieneLassoMercuryMethoxychlorNetfosaaNfdhaNmefosaaNitriteOxamylPfbaPFBSPfdaPfdoaPfeesaPfhpaPfhpsPfhxaPFHXSPfmbaPfmpaPFNAPFOAPFOSPfpeaPfpesPftaPftrdaPfunaPentachlorophenolPicloramSeleniumSimazineStyreneTetrachloroethyleneThallium, TotalTolueneToxapheneTrichloroethyleneVinyl ChlorideXylenes, Totalcis-1,2-DichloroethyleneO-DichlorobenzeneP-Dichlorobenzenetrans-1,2-Dichloroethylene

Utility contact

Contact
YUMA CITY OF
Phone
928-373-4588
Email
[email protected]

Frequently asked questions about City of Yuma

Is City of Yuma tap water safe to drink?

EPA monitoring detected 15 contaminants in City of Yuma'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 City of Yuma's water?

EPA monitoring detected Chlorite, Copper, Total Haloacetic Acids (HAA5), TTHM, Lead, and others. The full list with the level and data source for each is above.

How many people does City of Yuma serve?

City of Yuma reports serving 103,264 people in Arizona, per its EPA record.

Has City of Yuma had any water quality violations?

The EPA has 447 violations on file for City of Yuma, of which 93 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.