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Tap water quality report

Gunnison City of

EPA monitoring tested this supplier for 107 contaminants and detected 24. A detection doesn't automatically mean the water is unsafe — the level and EPA source for each is below.

107
contaminants tested
24
detected
9,610
people served
2
health-based violations
Colorado rankingsLead in ColoradoPFAS in Colorado
Water source
Ground water
Ownership
Local government
Counties served
Gunnison

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.

2
health-based violations
15
violations on file
0
still open
ViolationTypeStatusPeriod
MCL Health-based Resolved 1992-06-01 → 1992-06-30
MCL Health-based Resolved 1992-06-01 → 1992-06-30
MR Monitoring Resolved 2021-01-01 → 2021-12-31
MR Monitoring Resolved 2021-01-01 → 2021-12-31
MR Monitoring Resolved 2021-01-01 → 2021-12-31
MR Monitoring Resolved 2018-01-01 → 2018-03-31
MR Monitoring Resolved 2018-01-01 → 2018-03-31
MR Monitoring Resolved 2018-01-01 → 2018-03-31
MR Monitoring Resolved 1989-01-01 → 1989-12-31
MR Monitoring Resolved 1989-01-01 → 1989-12-31

PFAS detected

PFAS are industrial “forever chemicals”. These are the EPA's latest nationwide test results (2023–2025).
ContaminantMaxDetection ratePeriod
Pfhxa 0.0072 µg/L 2/18 2024
Pfpea 0.0051 µg/L 2/18 2024
PFBS 0.0030 µg/L 1/18 2024
PFOS 0.0042 µg/L 1/18 2024

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
Nitrate
1200 µg/L 12%
of the EPA limit 10000 µg/L
worst single sample: 2000 µg/L
122/126 SYR4 2012–2018
Barium
155 µg/L 7.8%
of the EPA limit 2000 µg/L
worst single sample: 160 µg/L
31/31 SYR4 2012–2018
Combined Uranium
2.715 µg/L 9%
of the EPA limit 30 µg/L
worst single sample: 2.8 µg/L
18/18 SYR4 2013–2019
Nitrate-Nitrite
1201 µg/L 12%
of the EPA limit 10000 µg/L
worst single sample: 1320 µg/L
18/18 SYR4 2013–2019
Lead
0.0030 mg/L 20%
of the EPA limit 0.0150 mg/L
 17/17 LCR 2025
Gross Alpha, Excl. Radon And U
2.82935 pCi/L 19%
of the EPA limit 15 pCi/L
worst single sample: 2.96 pCi/L
14/18 SYR4 2013–2019
Fluoride
130 µg/L 3.3%
of the EPA limit 4000 µg/L
 11/20 SYR4 2012–2018
Antimony, Total
9.57 µg/L 160%
of the EPA limit, at the 95th percentile of samples — 6 µg/L
worst single sample: 12 µg/L
10/53 SYR4 2012–2019
TTHM
10.34 µg/L 13%
of the EPA limit 80 µg/L
worst single sample: 11.3 µg/L
9/17 SYR4 2012–2019
Bromodichloromethane
1.64 µg/L
No EPA limit set
worst single sample: 1.7 µg/L
5/23 SYR4 2012–2019
Bromoform
5.06 µg/L
No EPA limit set
worst single sample: 5.5 µg/L
5/23 SYR4 2012–2019
Chloroform
0.9720 µg/L
No EPA limit set
worst single sample: 1 µg/L
5/23 SYR4 2012–2019
Dibromochloromethane
3.72 µg/L
No EPA limit set
worst single sample: 3.9 µg/L
5/23 SYR4 2012–2019
Total Haloacetic Acids (HAA5)
4.06 µg/L 6.8%
of the EPA limit 60 µg/L
worst single sample: 4.5 µg/L
5/8 SYR4 2012–2019
Dibromoacetic Acid
2.285 µg/L
No EPA limit set
worst single sample: 2.3 µg/L
4/5 SYR4 2015–2019
Di(2-ethylhexyl) Phthalate
1.464 µg/L 24%
of the EPA limit 6 µg/L
worst single sample: 1.5 µg/L
2/57 SYR4 2012–2019
Selenium
0.9830 µg/L 2%
of the EPA limit 50 µg/L
worst single sample: 0.9900 µg/L
2/31 SYR4 2012–2018
Combined Radium (-226 And -228)
2.7 pCi/L 54%
of the EPA limit 5 pCi/L
 1/9 SYR4 2019
Monochloroacetic Acid
2.3 µg/L
No EPA limit set
 1/5 SYR4 2015–2019
Pentachlorophenol
0.0430 µg/L 4.3%
of the EPA limit 1 µg/L
 1/45 SYR4 2012–2019
83 contaminants tested, none detected
1,1,1-Trichloroethane1,1,2-Trichloroethane1,1-Dichloroethylene1,2,4-Trichlorobenzene1,2-DIBROMO-3-CHLOROPROPANE1,2-Dichloroethane1,2-Dichloropropane11Cl-PF3OUdS2,4,5-TP2,4-D4:2 Fts6:2 Fts8:2 Fts9Cl-PF3ONSAdonaArsenicAtrazineBhc-GammaBenzeneBenzo(A)PyreneBeryllium, TotalChlorobenzeneCadmiumCarbofuranCarbon TetrachlorideChlordaneChromiumDichloromethaneDalaponDi(2-ethylhexyl) AdipateDichloroacetic AcidDinosebDiquatEthylene DibromideEndothallEndrinEthylbenzeneHexachlorobenzeneHfpo-DaHeptachlorHeptachlor EpoxideHexachlorocyclopentadieneLassoMercuryMethoxychlorMonobromoacetic AcidNetfosaaNfdhaNmefosaaNitriteOxamylPfbaPfdaPfdoaPfeesaPfhpaPfhpsPFHXSPfmbaPfmpaPFNAPFOAPfpesPftaPftrdaPfunaPicloramSimazineStyreneTetrachloroethyleneThallium, TotalTolueneTotal Polychlorinated Biphenyls (PCB)ToxapheneTrichloroacetic AcidTrichloroethyleneVinyl ChlorideXylenes, Totalcis-1,2-DichloroethyleneLithiumO-DichlorobenzeneP-Dichlorobenzenetrans-1,2-Dichloroethylene

Utility contact

Contact
WOLFE, ANDY
Phone
970-641-8330
Email
[email protected]

Frequently asked questions about Gunnison City of

Is Gunnison City of tap water safe to drink?

EPA monitoring detected 24 contaminants in Gunnison 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 Gunnison City of's water?

EPA monitoring detected Nitrate, Barium, Combined Uranium, Nitrate-Nitrite, Lead, and others. The full list with the level and data source for each is above.

How many people does Gunnison City of serve?

Gunnison City of reports serving 9,610 people in Colorado, per its EPA record.

Has Gunnison City of had any water quality violations?

The EPA has 15 violations on file for Gunnison City of, of which 2 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.