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Tap water quality report

Terrace Heights

EPA monitoring tested this supplier for 14 contaminants and detected 12. A detection doesn't automatically mean the water is unsafe — the level and EPA source for each is below.

14
contaminants tested
12
detected
548
people served
0
health-based violations
Colorado rankingsLead in ColoradoPFAS in Colorado
Water source
GWP
Ownership
Private
Counties served
Dubuque

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.

0
health-based violations
26
violations on file
0
still open
ViolationTypeStatusPeriod
MR Monitoring Archived 2025-08-01 → 2025-08-31
MR Monitoring Archived 2025-08-01 → 2025-08-31
MR Monitoring Archived 2025-08-01 → 2025-08-31
MR Monitoring Archived 2025-08-01 → 2025-08-31
MR Monitoring Resolved 2023-08-01 → 2023-08-31
MR Monitoring Resolved 2023-08-01 → 2023-08-31
MR Monitoring Resolved 2023-08-01 → 2023-08-31
MR Monitoring Resolved 2023-08-01 → 2023-08-31
MR Monitoring Resolved 2023-08-01 → 2023-08-31
MR Monitoring Resolved 2023-08-01 → 2023-08-31

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 single worst sample on record — over 100% is worth reading, but is not by itself a violation. Formal violations are listed separately.
ContaminantLevel vs EPA limitDetection rateSourcePeriod
Copper
7400 µg/L 569%
of the EPA limit, in the worst sample — 1300 µg/L
 17/40 SYR4 2012–2018
Bromodichloromethane
9.2 µg/L
No EPA limit set
 10/11 SYR4 2012–2019
Chloroform
29 µg/L
No EPA limit set
 10/11 SYR4 2012–2019
Dibromochloromethane
4.8 µg/L
No EPA limit set
 10/11 SYR4 2012–2019
Dichloroacetic Acid
7 µg/L
No EPA limit set
 10/11 SYR4 2012–2019
TTHM
40 µg/L 50%
of the EPA limit 80 µg/L
 10/11 SYR4 2012–2019
Dibromoacetic Acid
1 µg/L
No EPA limit set
 7/11 SYR4 2012–2019
Bromoform
0.9000 µg/L
No EPA limit set
 6/11 SYR4 2012–2019
Lead
0.0 mg/L 0%
of the EPA limit 0.0150 mg/L
 6/6 LCR 2024
Total Haloacetic Acids (HAA5)
9 µg/L 15%
of the EPA limit 60 µg/L
 5/11 SYR4 2012–2019
Trichloroacetic Acid
2 µg/L
No EPA limit set
 5/11 SYR4 2012–2019
Lead
1 µg/L 6.7%
of the EPA limit 15 µg/L
 2/40 SYR4 2012–2018
2 contaminants tested, none detected
Monobromoacetic AcidMonochloroacetic Acid

Utility contact

Contact
YES COMPANIES EXP FRED, LLC
Phone
303-483-7300
Email
khamilton@yescommunities.com

Frequently asked questions about Terrace Heights

Is Terrace Heights tap water safe to drink?

EPA monitoring detected 12 contaminants in Terrace Heights'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 Terrace Heights's water?

EPA monitoring detected Copper, Bromodichloromethane, Chloroform, Dibromochloromethane, Dichloroacetic Acid, and others. The full list with the level and data source for each is above.

How many people does Terrace Heights serve?

Terrace Heights reports serving 548 people in Colorado, per its EPA record.

Has Terrace Heights had any water quality violations?

The EPA has 26 violations on file for Terrace Heights, of which 0 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.