← Keystone, CO

Tap water quality report

ZIP 80435 — Keystone, CO

EPA monitoring across the 1 water supplier serving ZIP 80435 in Keystone, CO detected 21 contaminants. A detection doesn't automatically mean the water is unsafe — see the level at the main supplier below, with the EPA limit for each.

1
water supplier
9,900
people served
21
contaminants found

What was found in ZIP 80435

The level at this ZIP's main supplier, the highest level anywhere in it, the EPA limit for each, and where the figure comes from.

ContaminantLevel vs EPA limitSuppliersSource
Nitrate
412 µg/L 4.1%
of the EPA limit 10000 µg/L
Main supplier: SNAKE RIVER WD · 9,900 people · 2019
1/1 SYR4
Nitrate-Nitrite
388 µg/L 3.9%
of the EPA limit 10000 µg/L
Main supplier: SNAKE RIVER WD · 9,900 people · 2019
1/1 SYR4
Barium
26.85 µg/L 1.3%
of the EPA limit 2000 µg/L
Main supplier: SNAKE RIVER WD · 9,900 people · 2017
1/1 SYR4
TTHM
4.2 µg/L 5.3%
of the EPA limit 80 µg/L
Main supplier: SNAKE RIVER WD · 9,900 people · 2019
1/1 SYR4
Di(2-ethylhexyl) Phthalate
2.6 µg/L 43%
of the EPA limit 6 µg/L
Main supplier: SNAKE RIVER WD · 9,900 people · 2019
1/1 SYR4
Dibromochloromethane
1.655 µg/L
No EPA limit set
Main supplier: SNAKE RIVER WD · 9,900 people · 2019
1/1 SYR4
Bromodichloromethane
1.42 µg/L
No EPA limit set
Main supplier: SNAKE RIVER WD · 9,900 people · 2019
1/1 SYR4
Dichloroacetic Acid
1.4 µg/L
No EPA limit set
Main supplier: SNAKE RIVER WD · 9,900 people · 2019
1/1 SYR4
Total Haloacetic Acids (HAA5)
1.38 µg/L 2.3%
of the EPA limit 60 µg/L
Main supplier: SNAKE RIVER WD · 9,900 people · 2019
1/1 SYR4
Chloroform
0.9470 µg/L
No EPA limit set
Main supplier: SNAKE RIVER WD · 9,900 people · 2019
1/1 SYR4
Bromoform
0.7910 µg/L
No EPA limit set
Main supplier: SNAKE RIVER WD · 9,900 people · 2019
1/1 SYR4
Combined Radium (-226 And -228)
0.2760 pCi/L 5.5%
of the EPA limit 5 pCi/L
Main supplier: SNAKE RIVER WD · 9,900 people · 2016
1/1 SYR4
PFOS
0.0220 µg/L
No EPA limit set
Main supplier: SNAKE RIVER WD · 9,900 people · 2023
1/1 UCMR-5
PFHXS
0.0130 µg/L
No EPA limit set
Main supplier: SNAKE RIVER WD · 9,900 people · 2023
1/1 UCMR-5
Pfpea
0.0080 µg/L
No EPA limit set
Main supplier: SNAKE RIVER WD · 9,900 people · 2023
1/1 UCMR-5
PFBS
0.0066 µg/L
No EPA limit set
Main supplier: SNAKE RIVER WD · 9,900 people · 2023
1/1 UCMR-5
Pfhxa
0.0063 µg/L
No EPA limit set
Main supplier: SNAKE RIVER WD · 9,900 people · 2023
1/1 UCMR-5
PFOA
0.0058 µg/L
No EPA limit set
Main supplier: SNAKE RIVER WD · 9,900 people · 2023
1/1 UCMR-5
Pfhpa
0.0042 µg/L
No EPA limit set
Main supplier: SNAKE RIVER WD · 9,900 people · 2023
1/1 UCMR-5
Lead
0.00090 mg/L 6%
of the EPA limit 0.0150 mg/L
Main supplier: SNAKE RIVER WD · 9,900 people · 2025
1/1 LCR
Hexachlorobenzene
0.00080 µg/L 0.1%
of the EPA limit 1 µg/L
Main supplier: SNAKE RIVER WD · 9,900 people · 2018
1/1 SYR4
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.

Water suppliers serving ZIP 80435

SupplierStatePopulation served
SNAKE RIVER WD CO 9,900

Frequently asked questions about ZIP 80435 tap water

Is the tap water in ZIP 80435 safe to drink?

EPA testing detected 21 contaminants across the water suppliers serving ZIP 80435. A detection isn't the same as a violation — most levels are within federal limits. See each level and source above, and your utility's annual Consumer Confidence Report for the official status.

Which water suppliers serve ZIP 80435?

1 public water supplier report EPA drinking-water monitoring for ZIP 80435. Each is listed above with its population served.

What contaminants are in ZIP 80435's water?

EPA monitoring detected Nitrate, Nitrate-Nitrite, Barium, TTHM, Di(2-ethylhexyl) Phthalate, and others across this ZIP's suppliers. The full list with levels and sources is above.