Water Quality: Littleton, CO
19 water systems • 126,724 people served
Multiple Health ViolationsWater Quality Summary
Littleton is served by 19 public water systems with a combined service population of 126,724 people, and has 142 EPA Safe Drinking Water Act violations on record. Critically, 5 of those are health-based violations, meaning one or more contaminants were detected above EPA-established safe levels — a serious public health concern. Littleton's violation count is roughly in line with the national average for Colorado. Contaminants associated with violations include Chlorine, Fecal Coliform.
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)
Indicates direct fecal contamination; associated with diarrhea, cramps, nausea, and potential severe illness.
Common source: Human and animal fecal waste
EPA limit: Zero tolerance (any positive triggers violations)
Water Systems Serving Littleton
| System Name | PWSID | Source | Population | Violations |
|---|---|---|---|---|
| SOUTHWEST METROPOLITAN WSD | CO0103723 | Surface Water | 48,648 | 0 |
| PLATTE CANYON WSD | CO0103614 | Surface Water | 19,485 | 0 |
| ROXBOROUGH WSD | CO0118055 | Surface Water | 13,765 | 3 |
| KEN CARYL WSD | CO0103075 | Surface Water | 12,000 | 0 |
| LAKEHURST WSD | CO0130466 | Surface Water | 12,000 | 0 |
| STERLING RANCH CAB | CO0118724 | Surface Water | 11,357 | 8 |
| EAGLE RIVER VILLAGE MHP | CO0119234 | Groundwater | 1,500 | 4 |
| FOXRIDGE FARMS MHP | CO0103050 | Groundwater | 1,440 | 58 |
| NORTHBROOK VILLAS MHC | CO0143552 | Surface Water | 1,052 | 0 |
| BOW MAR WSD | CO0103153 | Surface Water | 899 | 0 |
| ROXBOROUGH NW DOUGLAS COUNTY | CO0118070 | Surface Water | 860 | 4 |
| COLUMBINE LAKES HOA | CO0103183 | Surface Water | 843 | 2 |
| RIVER VALLEY MHC | CO0162677 | Surface Water | 803 | 0 |
| FRANKLIN MOBILE HOME PARK | CO0101288 | Surface Water | 513 | 18 |
| EL MORRO MOBILE ESTATES | CO0121246 | Surface Water | 504 | 17 |
| LAKE FORK MHP | CO0133100 | Groundwater | 487 | 21 |
| REDHILL FOREST POMWACA | CO0147040 | Groundwater | 388 | 1 |
| CEDAR VILLAGE MHP | CO0103171 | Surface Water | 130 | 0 |
| VALLEY AT WINTER PARK WD | CO0125840 | Groundwater | 50 | 6 |
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.