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Tap water quality report

Ignacio, CO

EPA monitoring detected 18 contaminants across the 4 water suppliers serving Ignacio. 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.

4
water suppliers
2,878
people served
18
contaminants found
Colorado rankings Lead in Colorado PFAS in Colorado

What was found in Ignacio'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
530 µg/L 13%
of the EPA limit 4000 µg/L
Main supplier: IGNACIO-SOUTHERN UTE RURAL WATER SYSTEM · 1,527 people · 2013
1/4 SYR4
Chlorite
432 µg/L 43%
of the EPA limit 1000 µg/L
Main supplier: IGNACIO-SOUTHERN UTE RURAL WATER SYSTEM · 1,527 people · 2019
1/4 SYR4
Copper
279 µg/L 21%
of the EPA limit 1300 µg/L
Main supplier: IGNACIO-SOUTHERN UTE RURAL WATER SYSTEM · 1,527 people · 2018
1/4 SYR4
Barium
273 µg/L 14%
of the EPA limit 2000 µg/L
Main supplier: IGNACIO-SOUTHERN UTE RURAL WATER SYSTEM · 1,527 people · 2013
1/4 SYR4
Nitrate
97 µg/L 1%
of the EPA limit 10000 µg/L
Main supplier: IGNACIO-SOUTHERN UTE RURAL WATER SYSTEM · 1,527 people · 2019
1/4 SYR4
Nitrate-Nitrite
95.68 µg/L 1%
of the EPA limit 10000 µg/L
Main supplier: IGNACIO-SOUTHERN UTE RURAL WATER SYSTEM · 1,527 people · 2019
1/4 SYR4
TTHM
45.485 µg/L 57%
of the EPA limit 80 µg/L
Main supplier: IGNACIO-SOUTHERN UTE RURAL WATER SYSTEM · 1,527 people · 2019
Highest in the city: 72.85 µg/L — LA PLATA ARCHULETA WATER DISTRICT · 510 people · 2019
4/4 SYR4
Total Haloacetic Acids (HAA5)
43.255 µg/L 72%
of the EPA limit 60 µg/L
Main supplier: IGNACIO-SOUTHERN UTE RURAL WATER SYSTEM · 1,527 people · 2019
Highest in the city: 48.375 µg/L — LA PLATA ARCHULETA WATER DISTRICT · 510 people · 2019
4/4 SYR4
Chloroform
43.2 µg/L
No EPA limit set
Highest in the city: IGNACIO TOWN OF · 800 people · 2018
1/4 SYR4
Dichloroacetic Acid
17 µg/L
No EPA limit set
Highest in the city: IGNACIO TOWN OF · 800 people · 2018
1/4 SYR4
Trichloroacetic Acid
14.1 µg/L
No EPA limit set
Highest in the city: IGNACIO TOWN OF · 800 people · 2018
1/4 SYR4
Bromodichloromethane
9.01 µg/L
No EPA limit set
Highest in the city: IGNACIO TOWN OF · 800 people · 2018
1/4 SYR4
Gross Alpha, Excl. Radon And U
3.5 pCi/L 23%
of the EPA limit 15 pCi/L
Main supplier: IGNACIO-SOUTHERN UTE RURAL WATER SYSTEM · 1,527 people · 2019
1/4 SYR4
Lead
2.375 µg/L 16%
of the EPA limit 15 µg/L
Main supplier: IGNACIO-SOUTHERN UTE RURAL WATER SYSTEM · 1,527 people · 2018
1/4 SYR4
Dibromochloromethane
1.31 µg/L
No EPA limit set
Highest in the city: IGNACIO TOWN OF · 800 people · 2018
1/4 SYR4
Antimony, Total
0.9000 µg/L 15%
of the EPA limit 6 µg/L
Main supplier: IGNACIO-SOUTHERN UTE RURAL WATER SYSTEM · 1,527 people · 2013
1/4 SYR4
Combined Uranium
0.2235 µg/L 0.7%
of the EPA limit 30 µg/L
Main supplier: IGNACIO-SOUTHERN UTE RURAL WATER SYSTEM · 1,527 people · 2019
1/4 SYR4
Lead
0.00070 mg/L 4.7%
of the EPA limit 0.0150 mg/L
Main supplier: IGNACIO-SOUTHERN UTE RURAL WATER SYSTEM · 1,527 people · 2024
Highest in the city: 0.0105 mg/L — LA PLATA ARCHULETA WATER DISTRICT · 510 people · 2025
4/4 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 Ignacio

SupplierPopulation served
IGNACIO-SOUTHERN UTE RURAL WATER SYSTEM 1,527
IGNACIO TOWN OF 800
LA PLATA ARCHULETA WATER DISTRICT 510
VAN DEN BERG MD 41

Frequently asked questions about Ignacio tap water

Is Ignacio tap water safe to drink?

EPA testing detected 18 contaminants in the water serving Ignacio. 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 Ignacio?

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

What contaminants are in Ignacio's water?

The contaminants EPA monitoring detected in Ignacio include Fluoride, Chlorite, Copper, Barium, Nitrate. 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.