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Tap water quality report

Evans, CO

EPA monitoring detected 12 contaminants across the 2 water suppliers serving Evans. A detection doesn't automatically mean the water is unsafe — see the level at the main supplier for each below, with its EPA source and period.

2
water suppliers
20,394
people served
12
contaminants found
Colorado rankings Lead in Colorado PFAS in Colorado

What was found in Evans's water

The level at the city's main supplier, the highest level anywhere in the city, the EPA limit for each, and where every figure comes from.

ContaminantLevel vs EPA limitSuppliersSource
TTHM
83.52 µg/L 104%
of the EPA limit, at the 95th percentile of samples — 80 µg/L
Main supplier: EVANS CITY OF · 19,369 people · 2019
1/2 SYR4
Chloroform
61.04 µg/L
No EPA limit set
Main supplier: EVANS CITY OF · 19,369 people · 2019
1/2 SYR4
Total Haloacetic Acids (HAA5)
39.415 µg/L 66%
of the EPA limit 60 µg/L
Main supplier: EVANS CITY OF · 19,369 people · 2019
1/2 SYR4
Dichloroacetic Acid
22.5 µg/L
No EPA limit set
Main supplier: EVANS CITY OF · 19,369 people · 2019
1/2 SYR4
Bromodichloromethane
20.275 µg/L
No EPA limit set
Main supplier: EVANS CITY OF · 19,369 people · 2019
1/2 SYR4
Trichloroacetic Acid
14.65 µg/L
No EPA limit set
Main supplier: EVANS CITY OF · 19,369 people · 2019
1/2 SYR4
Dibromochloromethane
6.025 µg/L
No EPA limit set
Main supplier: EVANS CITY OF · 19,369 people · 2019
1/2 SYR4
Monochloroacetic Acid
3.725 µg/L
No EPA limit set
Main supplier: EVANS CITY OF · 19,369 people · 2019
1/2 SYR4
Dibromoacetic Acid
1.7 µg/L
No EPA limit set
Main supplier: EVANS CITY OF · 19,369 people · 2019
1/2 SYR4
Monobromoacetic Acid
1.085 µg/L
No EPA limit set
Main supplier: EVANS CITY OF · 19,369 people · 2019
1/2 SYR4
Bromoform
0.8220 µg/L
No EPA limit set
Main supplier: EVANS CITY OF · 19,369 people · 2019
1/2 SYR4
Lead
0.0020 mg/L 13%
of the EPA limit 0.0150 mg/L
Main supplier: EVANS CITY OF · 19,369 people · 2025
2/2 LCR
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 the system's samples — over 100% is worth reading, but is not by itself a violation. Formal violations are listed separately. These are the utilities' own EPA-reported results, not a city-wide average. A detection means the lab measured the substance — it isn't the same as exceeding a legal limit. Hover a source tag to see the EPA program and years behind each figure.

Water suppliers serving Evans

SupplierPopulation served
EVANS CITY OF 19,369
CAVE CREEK 1,025

Frequently asked questions about Evans tap water

Is Evans tap water safe to drink?

EPA testing detected 12 contaminants in the water serving Evans. A detection isn't the same as a violation — most detected levels are within federal limits. Check the level and source for each contaminant above, and your utility's annual Consumer Confidence Report for the official compliance status.

How many water suppliers serve Evans?

2 public water suppliers report drinking-water monitoring for Evans, Colorado to the EPA. Each is listed above with its population served.

What contaminants are in Evans's water?

The contaminants EPA monitoring detected in Evans include TTHM, Chloroform, Total Haloacetic Acids (HAA5), Dichloroacetic Acid, Bromodichloromethane. The full list, with the level at the main supplier and the data source, is in the table above.

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.