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Tap water quality report

Dacono, CO

EPA monitoring detected 9 contaminants across the 1 water supplier serving Dacono. 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.

1
water supplier
6,900
people served
9
contaminants found
Colorado rankings Lead in Colorado PFAS in Colorado

What was found in Dacono'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
81.93999999999998 µg/L 102%
of the EPA limit, at the 95th percentile of samples — 80 µg/L
Main supplier: DACONO CITY OF · 6,900 people · 2019
1/1 SYR4
Total Haloacetic Acids (HAA5)
57.308 µg/L 96%
of the EPA limit 60 µg/L
Main supplier: DACONO CITY OF · 6,900 people · 2019
1/1 SYR4
Chloroform
56.594999999999985 µg/L
No EPA limit set
Main supplier: DACONO CITY OF · 6,900 people · 2019
1/1 SYR4
Trichloroacetic Acid
29.432499999999994 µg/L
No EPA limit set
Main supplier: DACONO CITY OF · 6,900 people · 2019
1/1 SYR4
Dichloroacetic Acid
24.7705 µg/L
No EPA limit set
Main supplier: DACONO CITY OF · 6,900 people · 2019
1/1 SYR4
Bromodichloromethane
5.374999999999999 µg/L
No EPA limit set
Main supplier: DACONO CITY OF · 6,900 people · 2019
1/1 SYR4
Monochloroacetic Acid
4.626999999999999 µg/L
No EPA limit set
Main supplier: DACONO CITY OF · 6,900 people · 2019
1/1 SYR4
Monobromoacetic Acid
4.6114999999999995 µg/L
No EPA limit set
Main supplier: DACONO CITY OF · 6,900 people · 2019
1/1 SYR4
Lead
0.0030 mg/L 20%
of the EPA limit 0.0150 mg/L
Main supplier: DACONO CITY OF · 6,900 people · 2025
1/1 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 Dacono

SupplierPopulation served
DACONO CITY OF 6,900

Frequently asked questions about Dacono tap water

Is Dacono tap water safe to drink?

EPA testing detected 9 contaminants in the water serving Dacono. 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 Dacono?

1 public water supplier report drinking-water monitoring for Dacono, Colorado to the EPA. Each is listed above with its population served.

What contaminants are in Dacono's water?

The contaminants EPA monitoring detected in Dacono include TTHM, Total Haloacetic Acids (HAA5), Chloroform, Trichloroacetic Acid, Dichloroacetic Acid. 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.