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Tap water quality report

Superior, CO

EPA monitoring detected 13 contaminants across the 1 water supplier serving Superior. 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
17,900
people served
13
contaminants found
Colorado rankings Lead in Colorado PFAS in Colorado

What was found in Superior'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
785 µg/L 20%
of the EPA limit 4000 µg/L
Main supplier: SUPERIOR MD NO 1 · 17,900 people · 2019
1/1 SYR4
Chloroform
75.305 µg/L
No EPA limit set
Main supplier: SUPERIOR MD NO 1 · 17,900 people · 2019
1/1 SYR4
TTHM
74.4 µg/L 93%
of the EPA limit 80 µg/L
Main supplier: SUPERIOR MD NO 1 · 17,900 people · 2019
1/1 SYR4
Total Haloacetic Acids (HAA5)
39.315 µg/L 66%
of the EPA limit 60 µg/L
Main supplier: SUPERIOR MD NO 1 · 17,900 people · 2019
1/1 SYR4
Barium
25.3 µg/L 1.3%
of the EPA limit 2000 µg/L
Main supplier: SUPERIOR MD NO 1 · 17,900 people · 2019
1/1 SYR4
Dichloroacetic Acid
19.82 µg/L
No EPA limit set
Main supplier: SUPERIOR MD NO 1 · 17,900 people · 2019
1/1 SYR4
Trichloroacetic Acid
17.11 µg/L
No EPA limit set
Main supplier: SUPERIOR MD NO 1 · 17,900 people · 2019
1/1 SYR4
Bromodichloromethane
4.995 µg/L
No EPA limit set
Main supplier: SUPERIOR MD NO 1 · 17,900 people · 2019
1/1 SYR4
Monochloroacetic Acid
4.82 µg/L
No EPA limit set
Main supplier: SUPERIOR MD NO 1 · 17,900 people · 2019
1/1 SYR4
Monobromoacetic Acid
4.23 µg/L
No EPA limit set
Main supplier: SUPERIOR MD NO 1 · 17,900 people · 2019
1/1 SYR4
Chromium
1 µg/L 1%
of the EPA limit 100 µg/L
Main supplier: SUPERIOR MD NO 1 · 17,900 people · 2019
1/1 SYR4
Selenium
1 µg/L 2%
of the EPA limit 50 µg/L
Main supplier: SUPERIOR MD NO 1 · 17,900 people · 2019
1/1 SYR4
Lead
0.0 mg/L 0%
of the EPA limit 0.0150 mg/L
Main supplier: SUPERIOR MD NO 1 · 17,900 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 Superior

SupplierPopulation served
SUPERIOR MD NO 1 17,900

Frequently asked questions about Superior tap water

Is Superior tap water safe to drink?

EPA testing detected 13 contaminants in the water serving Superior. 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 Superior?

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

What contaminants are in Superior's water?

The contaminants EPA monitoring detected in Superior include Fluoride, Chloroform, TTHM, Total Haloacetic Acids (HAA5), Barium. 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.