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Tap water quality report

Somerton City of

EPA monitoring tested this supplier for 102 contaminants and detected 11. A detection doesn't automatically mean the water is unsafe — the level and EPA source for each is below.

102
contaminants tested
11
detected
14,197
people served
1
health-based violations
Arizona rankingsLead in ArizonaPFAS in Arizona
Water source
Ground 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.

1
health-based violations
175
violations on file
0
still open
ViolationTypeStatusPeriod
MCL Health-based Resolved 2010-01-01 → 2010-03-31
Other Monitoring Resolved 2025-10-02
Other Monitoring Resolved 2025-10-02
RPT Monitoring Resolved 2024-07-01
RPT Monitoring Resolved 2024-07-01
RPT Monitoring Resolved 2023-03-01
RPT Monitoring Resolved 2023-03-01
RPT Monitoring Resolved 2023-03-01
RPT Monitoring Resolved 2023-02-01
RPT Monitoring Resolved 2023-02-01

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
TTHM
77.98 µg/L 97%
of the EPA limit 80 µg/L
worst single sample: 103 µg/L
102/107 SYR4 2012–2019
Total Haloacetic Acids (HAA5)
20.875 µg/L 35%
of the EPA limit 60 µg/L
worst single sample: 34.1 µg/L
96/107 SYR4 2012–2019
Copper
519.4 µg/L 40%
of the EPA limit 1300 µg/L
worst single sample: 934 µg/L
89/90 SYR4 2013–2019
Lead
0.0010 mg/L 6.7%
of the EPA limit 0.0150 mg/L
 12/12 LCR 2025
Lead
21.18 µg/L 141%
of the EPA limit, at the 95th percentile of samples — 15 µg/L
worst single sample: 28.3 µg/L
9/90 SYR4 2013–2019
Barium
71.7 µg/L 3.6%
of the EPA limit 2000 µg/L
worst single sample: 72 µg/L
4/4 SYR4 2012–2019
Fluoride
290 µg/L 7.2%
of the EPA limit 4000 µg/L
 4/4 SYR4 2012–2019
Arsenic
1.96 µg/L 20%
of the EPA limit 10 µg/L
worst single sample: 2 µg/L
3/4 SYR4 2012–2019
Lithium
97.7 µg/L
No EPA limit set
 2/2 UCMR-5 2024
Chromium
2 µg/L 2%
of the EPA limit 100 µg/L
 1/4 SYR4 2012–2019
Gross Beta Particle Activity
5 pCi/L
No EPA limit set
 1/1 SYR4 2019
91 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 EpoxideHexachlorocyclopentadieneLassoMercuryMethoxychlorNetfosaaNfdhaNmefosaaNitrateNitrate-NitriteNitriteOxamylPfbaPFBSPfdaPfdoaPfeesaPfhpaPfhpsPfhxaPFHXSPfmbaPfmpaPFNAPFOAPFOSPfpeaPfpesPftaPftrdaPfunaPentachlorophenolPicloramSeleniumSimazineStyreneTetrachloroethyleneThallium, TotalTolueneToxapheneTrichloroethyleneVinyl ChlorideXylenes, Totalcis-1,2-DichloroethyleneO-DichlorobenzeneP-Dichlorobenzenetrans-1,2-Dichloroethylene

Utility contact

Contact
BRAN, SARA
Phone
928-722-7322
Email
[email protected]

Frequently asked questions about Somerton City of

Is Somerton City of tap water safe to drink?

EPA monitoring detected 11 contaminants in Somerton 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 Somerton City of's water?

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

How many people does Somerton City of serve?

Somerton City of reports serving 14,197 people in Arizona, per its EPA record.

Has Somerton City of had any water quality violations?

The EPA has 175 violations on file for Somerton City of, of which 1 is 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.