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Tap water quality report

Keystone Ranch

EPA monitoring tested this supplier for 75 contaminants and detected 13. A detection doesn't automatically mean the water is unsafe — the level and EPA source for each is below.

75
contaminants tested
13
detected
670
people served
4
health-based violations
Colorado rankingsLead in ColoradoPFAS in Colorado
Water source
Ground water
Ownership
Private
Counties served
Summit

Compliance record

Formal violations the EPA has on file for this supplier. A health-based violation means a contaminant limit or a required treatment was breached; the rest are monitoring or reporting failures — still violations, but not a measured health risk.

4
health-based violations
10
violations on file
0
still open
ViolationTypeStatusPeriod
TT Health-based Resolved 2024-12-01
TT Health-based Resolved 2024-12-01
TT Health-based Resolved 2024-12-01
TT Health-based Resolved 2024-12-01
MR Monitoring Resolved 2002-07-01 → 2002-07-31
MR Monitoring Resolved 2002-07-01 → 2002-07-31
MR Monitoring Resolved 2002-07-01 → 2002-07-31
MR Monitoring Resolved 1993-01-01 → 1993-12-31
MR Monitoring Resolved 1993-01-01 → 1993-12-31
MR Monitoring Resolved 1993-01-01 → 1993-12-31

Other contaminants detected

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 this system's samples — over 100% is worth reading, but is not by itself a violation. Where a single sample came in higher than that percentile, it is noted under the bar. Formal violations are listed separately.
ContaminantLevel vs EPA limitDetection rateSourcePeriod
Lead
0.0320 mg/L 213%
above the EPA limit of 0.0150 mg/L
 16/16 LCR 2025
Nitrate
1700 µg/L 17%
of the EPA limit 10000 µg/L
 14/16 SYR4 2012–2019
Barium
150 µg/L 7.5%
of the EPA limit 2000 µg/L
 3/3 SYR4 2012–2018
Fluoride
387 µg/L 9.7%
of the EPA limit 4000 µg/L
worst single sample: 390 µg/L
3/3 SYR4 2012–2018
TTHM
8.13 µg/L 10%
of the EPA limit 80 µg/L
worst single sample: 8.5 µg/L
3/4 SYR4 2012–2018
Bromodichloromethane
2.905 µg/L
No EPA limit set
worst single sample: 3 µg/L
2/4 SYR4 2012–2018
Chloroform
2.5155 µg/L
No EPA limit set
worst single sample: 2.6 µg/L
2/4 SYR4 2012–2018
Dibromochloromethane
2.43 µg/L
No EPA limit set
worst single sample: 2.5 µg/L
2/4 SYR4 2012–2018
Total Haloacetic Acids (HAA5)
1.285 µg/L 2.1%
of the EPA limit 60 µg/L
worst single sample: 1.3 µg/L
2/3 SYR4 2012–2018
Bromoform
0.6000 µg/L
No EPA limit set
 1/4 SYR4 2012–2018
Combined Radium (-226 And -228)
0.2000 pCi/L 4%
of the EPA limit 5 pCi/L
 1/1 SYR4 2012
Dichloroacetic Acid
1 µg/L
No EPA limit set
 1/2 SYR4 2015–2018
Gross Alpha, Excl. Radon And U
0.5000 pCi/L 3.3%
of the EPA limit 15 pCi/L
 1/1 SYR4 2012
62 contaminants tested, none detected
1,1,1-Trichloroethane1,1,2-Trichloroethane1,1-Dichloroethylene1,2,4-Trichlorobenzene1,2-DIBROMO-3-CHLOROPROPANE1,2-Dichloroethane1,2-Dichloropropane2,4,5-TP2,4-DAntimony, TotalArsenicAtrazineBhc-GammaBenzeneBenzo(A)PyreneBeryllium, TotalChlorobenzeneCadmiumCarbofuranCarbon TetrachlorideChlordaneChromiumCombined UraniumDichloromethaneDalaponDi(2-ethylhexyl) AdipateDi(2-ethylhexyl) PhthalateDibromoacetic AcidDinosebDiquatEthylene DibromideEndothallEndrinEthylbenzeneHexachlorobenzeneHeptachlorHeptachlor EpoxideHexachlorocyclopentadieneLassoMercuryMethoxychlorMonobromoacetic AcidMonochloroacetic AcidOxamylPentachlorophenolPicloramSeleniumSimazineStyreneTetrachloroethyleneThallium, TotalTolueneTotal Polychlorinated Biphenyls (PCB)ToxapheneTrichloroacetic AcidTrichloroethyleneVinyl ChlorideXylenes, Totalcis-1,2-DichloroethyleneO-DichlorobenzeneP-Dichlorobenzenetrans-1,2-Dichloroethylene

Utility contact

Contact
LAWES, MEAGHAN
Phone
303-404-8000
Email
[email protected]

Frequently asked questions about Keystone Ranch

Is Keystone Ranch tap water safe to drink?

EPA monitoring detected 13 contaminants in Keystone Ranch's water. A detection isn't the same as a violation — most levels are within federal limits. See each level and source above, and the utility's annual Consumer Confidence Report for its official compliance status.

What contaminants were detected in Keystone Ranch's water?

EPA monitoring detected Lead, Nitrate, Barium, Fluoride, TTHM, and others. The full list with the level and data source for each is above.

How many people does Keystone Ranch serve?

Keystone Ranch reports serving 670 people in Colorado, per its EPA record.

Has Keystone Ranch had any water quality violations?

The EPA has 10 violations on file for Keystone Ranch, of which 4 are health-based (a contaminant limit or required treatment was breached) and 0 remain open. The rest are monitoring or reporting failures.

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.