Water Quality: Calhan, CO
4 water systems • 1,317 people served
Some ConcernsWater Quality Summary
Calhan is served by 4 public water systems with a combined service population of 1,317 people, and has 125 EPA Safe Drinking Water Act violations on record. Critically, 3 of those are health-based violations, meaning one or more contaminants were detected above EPA-established safe levels — a serious public health concern. Calhan's violation count is 8% below the national average for Colorado. Contaminants associated with violations include Chlorine, Selenium.
Contaminants Found
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)
Hair loss, nail brittleness, and nervous system damage at elevated concentrations.
Common source: Natural geological deposits, mining discharges, oil refinery waste
EPA limit: 0.05 mg/L (50 ppb)
Water Systems Serving Calhan
| System Name | PWSID | Source | Population | Violations |
|---|---|---|---|---|
| CALHAN TOWN OF | CO0121075 | Groundwater | 780 | 20 |
| GRAND VIEW MHP | CO0121345 | Groundwater | 250 | 5 |
| PRAIRIE ESTATES | CO0121650 | Groundwater | 220 | 30 |
| PEAKS SHADOW LLC | CO0121220 | Groundwater | 67 | 70 |
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.