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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 level at the main supplier 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 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
Fluoride
935 µg/L 23%
of the EPA limit 4000 µg/L
Main supplier: BROOMFIELD CITY AND COUNTY OF · 106,153 people · 2019
1/2 SYR4
Nitrate
68 µg/L 0.7%
of the EPA limit 10000 µg/L
Main supplier: BROOMFIELD CITY AND COUNTY OF · 106,153 people · 2019
1/2 SYR4
Nitrate-Nitrite
67.1 µg/L 0.7%
of the EPA limit 10000 µg/L
Main supplier: BROOMFIELD CITY AND COUNTY OF · 106,153 people · 2018
1/2 SYR4
TTHM
31.83 µg/L 40%
of the EPA limit 80 µg/L
Main supplier: BROOMFIELD CITY AND COUNTY OF · 106,153 people · 2019
1/2 SYR4
Total Haloacetic Acids (HAA5)
25.925 µg/L 43%
of the EPA limit 60 µg/L
Main supplier: BROOMFIELD CITY AND COUNTY OF · 106,153 people · 2019
1/2 SYR4
Chloroform
20.86 µg/L
No EPA limit set
Main supplier: BROOMFIELD CITY AND COUNTY OF · 106,153 people · 2019
1/2 SYR4
Barium
20.3 µg/L 1%
of the EPA limit 2000 µg/L
Main supplier: BROOMFIELD CITY AND COUNTY OF · 106,153 people · 2019
1/2 SYR4
Dichloroacetic Acid
12.9875 µg/L
No EPA limit set
Main supplier: BROOMFIELD CITY AND COUNTY OF · 106,153 people · 2019
1/2 SYR4
Trichloroacetic Acid
7.8675 µg/L
No EPA limit set
Main supplier: BROOMFIELD CITY AND COUNTY OF · 106,153 people · 2019
1/2 SYR4
Bromodichloromethane
5.92 µg/L
No EPA limit set
Main supplier: BROOMFIELD CITY AND COUNTY OF · 106,153 people · 2019
1/2 SYR4
Dibromochloromethane
1.895 µg/L
No EPA limit set
Main supplier: BROOMFIELD CITY AND COUNTY OF · 106,153 people · 2019
1/2 SYR4
Monochloroacetic Acid
1.241 µg/L
No EPA limit set
Main supplier: BROOMFIELD CITY AND COUNTY OF · 106,153 people · 2019
1/2 SYR4
Selenium
0.2500 µg/L 0.5%
of the EPA limit 50 µg/L
Main supplier: BROOMFIELD CITY AND COUNTY OF · 106,153 people · 2019
1/2 SYR4
Lead
0.0025 mg/L 17%
of the EPA limit 0.0150 mg/L
Main supplier: BROOMFIELD CITY AND COUNTY OF · 106,153 people · 2024
Highest in the city: 0.0040 mg/L — FRONT RANGE · 1,620 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 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 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.