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Tap water quality report

Holly Town of

EPA monitoring tested this supplier for 78 contaminants and detected 16. A detection doesn't automatically mean the water is unsafe — the level and EPA source for each is below.

78
contaminants tested
16
detected
800
people served
99
health-based violations
Colorado rankingsLead in ColoradoPFAS in Colorado
Water source
Ground water
Ownership
Local government
Counties served
Prowers

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.

99
health-based violations
158
violations on file
0
still open
ViolationTypeStatusPeriod
MCL Health-based Archived 2026-01-01 → 2026-03-31
MCL Health-based Archived 2026-01-01 → 2026-03-31
MCL Health-based Archived 2026-01-01 → 2026-03-31
MCL Health-based Archived 2026-01-01 → 2026-03-31
MCL Health-based Archived 2025-10-01 → 2025-12-31
MCL Health-based Archived 2025-10-01 → 2025-12-31
MCL Health-based Archived 2025-10-01 → 2025-12-31
MCL Health-based Archived 2025-10-01 → 2025-12-31
MCL Health-based Archived 2025-07-01 → 2025-09-30
MCL Health-based Archived 2025-07-01 → 2025-09-30

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
Combined Radium (-226 And -228)
13.8 pCi/L 276%
of the EPA limit, in the worst sample — 5 pCi/L
 16/16 SYR4 2013–2019
Lead
0.0 mg/L 0%
of the EPA limit 0.0150 mg/L
 16/16 LCR 2025
Gross Alpha, Excl. Radon And U
8.23 pCi/L 55%
of the EPA limit 15 pCi/L
 8/8 SYR4 2013–2019
Nitrate
110 µg/L 1.1%
of the EPA limit 10000 µg/L
 8/48 SYR4 2012–2019
Combined Uranium
1.8 µg/L 6%
of the EPA limit 30 µg/L
 7/9 SYR4 2013–2019
TTHM
4.9 µg/L 6.1%
of the EPA limit 80 µg/L
 7/16 SYR4 2012–2019
Fluoride
970 µg/L 24%
of the EPA limit 4000 µg/L
 6/6 SYR4 2016–2019
Barium
48 µg/L 2.4%
of the EPA limit 2000 µg/L
 5/5 SYR4 2016–2019
Bromoform
1.6 µg/L
No EPA limit set
 4/11 SYR4 2015–2019
Gross Beta Particle Activity
6.9 pCi/L
No EPA limit set
 4/4 SYR4 2013–2016
Arsenic
1.1 µg/L 11%
of the EPA limit 10 µg/L
 3/5 SYR4 2016–2019
Dibromochloromethane
1 µg/L
No EPA limit set
 3/11 SYR4 2015–2019
Nitrate-Nitrite
110 µg/L 1.1%
of the EPA limit 10000 µg/L
 3/5 SYR4 2012–2016
Dibromoacetic Acid
1.2 µg/L
No EPA limit set
 2/5 SYR4 2015–2019
Selenium
1.6 µg/L 3.2%
of the EPA limit 50 µg/L
 2/5 SYR4 2016–2019
Total Haloacetic Acids (HAA5)
1.2 µg/L 2%
of the EPA limit 60 µg/L
 2/10 SYR4 2012–2019
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, TotalAtrazineBhc-GammaBenzeneBenzo(A)PyreneBeryllium, TotalBromodichloromethaneChlorobenzeneCadmiumCarbofuranCarbon TetrachlorideChlordaneChloroformChromiumDichloromethaneDalaponDi(2-ethylhexyl) AdipateDi(2-ethylhexyl) PhthalateDichloroacetic AcidDinosebDiquatEthylene DibromideEndothallEndrinEthylbenzeneHexachlorobenzeneHeptachlorHeptachlor EpoxideHexachlorocyclopentadieneLassoMercuryMethoxychlorMonobromoacetic AcidMonochloroacetic AcidNitriteOxamylPentachlorophenolPicloramSimazineStyreneTetrachloroethyleneThallium, TotalTolueneTotal Polychlorinated Biphenyls (PCB)ToxapheneTrichloroacetic AcidTrichloroethyleneVinyl ChlorideXylenes, Totalcis-1,2-DichloroethyleneO-DichlorobenzeneP-Dichlorobenzenetrans-1,2-Dichloroethylene

Utility contact

Contact
YARBOROUGH, LETYSHA
Phone
719-537-6622
Email
CLERK@TOWNOFHOLLY.COM

Frequently asked questions about Holly Town of

Is Holly Town of tap water safe to drink?

EPA monitoring detected 16 contaminants in Holly Town of'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 Holly Town of's water?

EPA monitoring detected Combined Radium (-226 And -228), Lead, Gross Alpha, Excl. Radon And U, Nitrate, Combined Uranium, and others. The full list with the level and data source for each is above.

How many people does Holly Town of serve?

Holly Town of reports serving 800 people in Colorado, per its EPA record.

Has Holly Town of had any water quality violations?

The EPA has 158 violations on file for Holly Town of, of which 99 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.