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Tap water quality report

Broomfield, CO

EPA monitoring detected 14 contaminants across the 2 water suppliers serving Broomfield. A detection doesn't automatically mean the water is unsafe — see the highest level found for each below, with its EPA source and period.

2
water suppliers
107,773
people served
14
contaminants found
Colorado rankings Lead in Colorado PFAS in Colorado

What was found in Broomfield's water

The highest level seen across the city's suppliers, the EPA limit for each, and where the figure comes from.

ContaminantLevel vs EPA limitSuppliersSource
Fluoride
970 µg/L 24%
of the EPA limit 4000 µg/L
 1/2 SYR4
Nitrate
68 µg/L 0.7%
of the EPA limit 10000 µg/L
 1/2 SYR4
Nitrate-Nitrite
68 µg/L 0.7%
of the EPA limit 10000 µg/L
 1/2 SYR4
TTHM
43.2 µg/L 54%
of the EPA limit 80 µg/L
 1/2 SYR4
Total Haloacetic Acids (HAA5)
37.5 µg/L 63%
of the EPA limit 60 µg/L
 1/2 SYR4
Chloroform
21.2 µg/L
No EPA limit set
 1/2 SYR4
Barium
21 µg/L 1.1%
of the EPA limit 2000 µg/L
 1/2 SYR4
Dichloroacetic Acid
13.85 µg/L
No EPA limit set
 1/2 SYR4
Trichloroacetic Acid
8.04 µg/L
No EPA limit set
 1/2 SYR4
Bromodichloromethane
6.6 µg/L
No EPA limit set
 1/2 SYR4
Dibromochloromethane
2 µg/L
No EPA limit set
 1/2 SYR4
Monochloroacetic Acid
1.26 µg/L
No EPA limit set
 1/2 SYR4
Selenium
0.2500 µg/L 0.5%
of the EPA limit 50 µg/L
 1/2 SYR4
Lead
0.0040 mg/L 27%
of the EPA limit 0.0150 mg/L
 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 single worst sample on record — 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 Broomfield

SupplierPopulation served
BROOMFIELD CITY AND COUNTY OF 106,153
FRONT RANGE 1,620

Frequently asked questions about Broomfield tap water

Is Broomfield tap water safe to drink?

EPA testing detected 14 contaminants in the water serving Broomfield. 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 Broomfield?

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

What contaminants are in Broomfield's water?

The contaminants EPA monitoring detected in Broomfield include Fluoride, Nitrate, Nitrate-Nitrite, TTHM, Total Haloacetic Acids (HAA5). The full list, with the highest level found 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.