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Tap water quality report

Durango City of

EPA monitoring tested this supplier for 109 contaminants and detected 23. A detection doesn't automatically mean the water is unsafe — the level and EPA source for each is below.

109
contaminants tested
23
detected
33,787
people served
0
health-based violations
Colorado rankingsLead in ColoradoPFAS in Colorado
Water source
Surface water
Ownership
Local government
Counties served
La Plata

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.

0
health-based violations
44
violations on file
0
still open
ViolationTypeStatusPeriod
MR Monitoring Resolved 2023-05-01 → 2023-05-31
MR Monitoring Resolved 2023-05-01 → 2023-05-31
MR Monitoring Resolved 2023-05-01 → 2023-05-31
MR Monitoring Resolved 2023-05-01 → 2023-05-31
MR Monitoring Resolved 2023-05-01 → 2023-05-31
MR Monitoring Resolved 2023-05-01 → 2023-05-31
MR Monitoring Resolved 2016-11-01 → 2016-11-30
MR Monitoring Resolved 2016-11-01 → 2016-11-30
MR Monitoring Resolved 2016-11-01 → 2016-11-30
MR Monitoring Resolved 2016-11-01 → 2016-11-30

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
53.9 µg/L 67%
of the EPA limit 80 µg/L
worst single sample: 76.7 µg/L
141/141 SYR4 2012–2019
Total Haloacetic Acids (HAA5)
32.41 µg/L 54%
of the EPA limit 60 µg/L
worst single sample: 39.7 µg/L
140/140 SYR4 2012–2019
Chloroform
50.1 µg/L
No EPA limit set
worst single sample: 67.8 µg/L
71/71 SYR4 2012–2019
Bromodichloromethane
8.02 µg/L
No EPA limit set
worst single sample: 9.2 µg/L
69/71 SYR4 2012–2019
Dichloroacetic Acid
16.155 µg/L
No EPA limit set
worst single sample: 18.5 µg/L
64/64 SYR4 2015–2019
Trichloroacetic Acid
15.2 µg/L
No EPA limit set
worst single sample: 21.6 µg/L
62/64 SYR4 2015–2019
Dibromochloromethane
1.85 µg/L
No EPA limit set
worst single sample: 2.1 µg/L
31/71 SYR4 2012–2019
Monochloroacetic Acid
2.185 µg/L
No EPA limit set
worst single sample: 2.5 µg/L
24/64 SYR4 2015–2019
Barium
79.225 µg/L 4%
of the EPA limit 2000 µg/L
worst single sample: 97.5 µg/L
18/19 SYR4 2012–2019
Fluoride
953.75 µg/L 24%
of the EPA limit 4000 µg/L
worst single sample: 992 µg/L
18/18 SYR4 2012–2019
Lead
0.0031 mg/L 21%
of the EPA limit 0.0150 mg/L
 18/18 LCR 2025
Copper
66.615 µg/L 5.1%
of the EPA limit 1300 µg/L
worst single sample: 87 µg/L
10/10 SYR4 2015
Nitrate
125 µg/L 1.3%
of the EPA limit 10000 µg/L
 10/16 SYR4 2012–2019
Chromium
8.315 µg/L 8.3%
of the EPA limit 100 µg/L
worst single sample: 9.4 µg/L
8/19 SYR4 2012–2019
Nitrate-Nitrite
114 µg/L 1.1%
of the EPA limit 10000 µg/L
worst single sample: 125 µg/L
5/8 SYR4 2012–2019
Cadmium
0.3700 µg/L 7.4%
of the EPA limit 5 µg/L
worst single sample: 0.4000 µg/L
3/19 SYR4 2012–2019
Combined Radium (-226 And -228)
0.0985 pCi/L 2%
of the EPA limit 5 pCi/L
worst single sample: 0.1000 pCi/L
2/2 SYR4 2012–2016
Gross Alpha, Excl. Radon And U
0.8726 pCi/L 5.8%
of the EPA limit 15 pCi/L
worst single sample: 0.9000 pCi/L
2/2 SYR4 2012–2016
Thallium, Total
0.1000 µg/L 5%
of the EPA limit 2 µg/L
 2/19 SYR4 2012–2019
Antimony, Total
0.9000 µg/L 15%
of the EPA limit 6 µg/L
 1/19 SYR4 2012–2019
Combined Uranium
0.4600 µg/L 1.5%
of the EPA limit 30 µg/L
 1/2 SYR4 2012–2016
Lead
0.9000 µg/L 6%
of the EPA limit 15 µg/L
 1/11 SYR4 2015
Lithium
12 µg/L
No EPA limit set
 1/4 UCMR-5 2023
86 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, TotalBromoformChlorobenzeneCarbofuranCarbon TetrachlorideChlordaneDichloromethaneDalaponDi(2-ethylhexyl) AdipateDi(2-ethylhexyl) PhthalateDibromoacetic AcidDinosebDiquatEthylene DibromideEndothallEndrinEthylbenzeneHexachlorobenzeneHfpo-DaHeptachlorHeptachlor EpoxideHexachlorocyclopentadieneLassoMercuryMethoxychlorMonobromoacetic AcidNetfosaaNfdhaNmefosaaNitriteOxamylPfbaPFBSPfdaPfdoaPfeesaPfhpaPfhpsPfhxaPFHXSPfmbaPfmpaPFNAPFOAPFOSPfpeaPfpesPftaPftrdaPfunaPentachlorophenolPicloramSeleniumSimazineStyreneTetrachloroethyleneTolueneTotal Polychlorinated Biphenyls (PCB)ToxapheneTrichloroethyleneVinyl ChlorideXylenes, Totalcis-1,2-DichloroethyleneO-DichlorobenzeneP-Dichlorobenzenetrans-1,2-Dichloroethylene

Utility contact

Contact
HARRIS, JOHN
Phone
970-375-4805
Email
[email protected]

Frequently asked questions about Durango City of

Is Durango City of tap water safe to drink?

EPA monitoring detected 23 contaminants in Durango 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 Durango City of's water?

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

How many people does Durango City of serve?

Durango City of reports serving 33,787 people in Colorado, per its EPA record.

Has Durango City of had any water quality violations?

The EPA has 44 violations on file for Durango City of, of which 0 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.