Water Quality: Holly, CO
3 water systems • 1,226 people served
Multiple Health ViolationsWater Quality Summary
Holly is served by 3 public water systems with a combined service population of 1,226 people, and has 171 EPA Safe Drinking Water Act violations on record. Critically, 58 of those are health-based violations, meaning one or more contaminants were detected above EPA-established safe levels — a serious public health concern. Holly's violation count is 26% above the national average for Colorado. Contaminants associated with violations include Arsenic, Chlorine, Total Organic Carbon.
Contaminants Found
Long-term exposure increases risk of skin, bladder, and lung cancers, as well as cardiovascular and neurological effects.
Common source: Natural rock deposits, agricultural pesticides, industrial waste
EPA limit: 0.010 mg/L (10 ppb)
Eye and nose irritation at high levels; long-term exposure above the MCL may cause liver and kidney damage.
Common source: Water treatment disinfectant added to kill harmful microorganisms
EPA limit: 4.0 mg/L (MRDL — Maximum Residual Disinfectant Level)
Not a direct health risk but reacts with disinfectants to form carcinogenic byproducts such as trihalomethanes.
Common source: Decaying plant material, algae, soil organic matter in source water
EPA limit: Treatment technique (must reduce TOC based on source water level)
Water Systems Serving Holly
| System Name | PWSID | Source | Population | Violations |
|---|---|---|---|---|
| HOLLY TOWN OF | CO0150600 | Groundwater | 800 | 66 |
| KIT CARSON TOWN OF | CO0109011 | Groundwater | 326 | 28 |
| A AND B WA INC | CO0150100 | Groundwater | 100 | 77 |
Concerned About Your Water?
A home water filter can remove common contaminants. NSF-certified filters are tested against EPA standards.
Consider a reverse osmosis system for comprehensive filtration or a carbon filter for basic improvement.
Other Cities in Colorado
Data Sources
Drinking water violation data from the EPA Safe Drinking Water Information System (SDWIS). Data includes all recorded violations for active community water systems.