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Tap water quality report

Silt, CO

EPA monitoring detected 24 contaminants across the 5 water suppliers serving Silt. A detection doesn't automatically mean the water is unsafe — see the highest level found for each below, with its EPA source and period.

5
water suppliers
3,808
people served
24
contaminants found
Colorado rankings Lead in Colorado PFAS in Colorado

What was found in Silt'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
Nitrate
19800 µg/L 198%
of the EPA limit, in the worst sample — 10000 µg/L
 4/5 SYR4
Fluoride
870 µg/L 22%
of the EPA limit 4000 µg/L
 4/5 SYR4
Nitrate-Nitrite
710 µg/L 7.1%
of the EPA limit 10000 µg/L
 3/5 SYR4
Selenium
170 µg/L 340%
of the EPA limit, in the worst sample — 50 µg/L
 4/5 SYR4
TTHM
124 µg/L 155%
of the EPA limit, in the worst sample — 80 µg/L
 4/5 SYR4
Chloroform
56.6 µg/L
No EPA limit set
 3/5 SYR4
Barium
56 µg/L 2.8%
of the EPA limit 2000 µg/L
 4/5 SYR4
Total Haloacetic Acids (HAA5)
36.9 µg/L 62%
of the EPA limit 60 µg/L
 4/5 SYR4
Trichloroacetic Acid
28.1 µg/L
No EPA limit set
 3/5 SYR4
Combined Uranium
26 µg/L 87%
of the EPA limit 30 µg/L
 3/5 SYR4
Dibromochloromethane
25.7 µg/L
No EPA limit set
 4/5 SYR4
Bromodichloromethane
21.8 µg/L
No EPA limit set
 4/5 SYR4
Bromoform
14.7 µg/L
No EPA limit set
 4/5 SYR4
Chromium
13 µg/L 13%
of the EPA limit 100 µg/L
 2/5 SYR4
Dibromoacetic Acid
11.2 µg/L
No EPA limit set
 3/5 SYR4
Monochloroacetic Acid
10 µg/L
No EPA limit set
 3/5 SYR4
Dichloroacetic Acid
9.7 µg/L
No EPA limit set
 3/5 SYR4
Gross Alpha, Excl. Radon And U
8.27 pCi/L 55%
of the EPA limit 15 pCi/L
 3/5 SYR4
Monobromoacetic Acid
4.6 µg/L
No EPA limit set
 2/5 SYR4
Arsenic
2 µg/L 20%
of the EPA limit 10 µg/L
 2/5 SYR4
Combined Radium (-226 And -228)
1.6 pCi/L 32%
of the EPA limit 5 pCi/L
 2/5 SYR4
Di(2-ethylhexyl) Phthalate
1.5 µg/L 25%
of the EPA limit 6 µg/L
 1/5 SYR4
Hexachlorocyclopentadiene
0.0760 µg/L 0.2%
of the EPA limit 50 µg/L
 1/5 SYR4
Lead
0.0040 mg/L 27%
of the EPA limit 0.0150 mg/L
 4/5 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 Silt

SupplierPopulation served
SILT TOWN OF 3,536
MINEOTA ESTATES HOA 105
ASGARD SUBDIVISION WA 80
WILLIAMS CREEK WATER 60
PEACH VALLEY ORCHARD SUBD 27

Frequently asked questions about Silt tap water

Is Silt tap water safe to drink?

EPA testing detected 24 contaminants in the water serving Silt. 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 Silt?

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

What contaminants are in Silt's water?

The contaminants EPA monitoring detected in Silt include Nitrate, Fluoride, Nitrate-Nitrite, Selenium, TTHM. 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.