COUNTY WATER-SYSTEM LEDGER
Jefferson, Colorado
EPA’s September 2026 export lists 20 active community water systems serving Jefferson, Colorado, with 1 current-violation flags and 0 serious-violator flags among the covered systems.
Source: EPA SDWIS system-search export · Active community systems serving 2,500+ people · Snapshot 13 Sep 2026
01 / SYSTEMS
Water systems serving Jefferson, Colorado
EPA associates 20 covered systems with Jefferson, Colorado; their reported population-served values total 538,693 and may overlap.
Ordered by reported population served. Open any record for separate health, monitoring, notice, other, and serious-violator flags.
| Water system | Population served | Primary source | Current export status |
|---|---|---|---|
| Arvada City OfCO0130001 | 171,610 | Surface water | No current violation flagged |
| Consolidated Mutual Maple GroveCO0130020 | 81,400 | Surface water | No current violation flagged |
| Green Mountain WsdCO0130321 | 49,400 | Surface water purchased | No current violation flagged |
| Bancroft Clover WsdCO0130133 | 44,000 | Surface water purchased | No current violation flagged |
| Golden City OfCO0130040 | 38,288 | Surface water | No current violation flagged |
| Bear Creek WsdCO0130138 | 30,000 | Surface water purchased | No current violation flagged |
| Wheat Ridge Water DistrictCO0130842 | 20,000 | Surface water purchased | No current violation flagged |
| Evergreen MdCO0130030 | 15,750 | Surface water | No current violation flagged |
| Ken Caryl WsdCO0103075 | 12,000 | Surface water purchased | No current violation flagged |
| Lakehurst WsdCO0130466 | 12,000 | Surface water purchased | No current violation flagged |
| North Table Mountain WsdCO0130105 | 10,000 | Surface water | No current violation flagged |
| Valley WdCO0130800 | 10,000 | Surface water purchased | No current violation flagged |
| Morrison Town OfCO0130085 | 9,887 | Surface water | No current violation flagged |
| Willowbrook WsdCO0130843 | 9,348 | Surface water purchased | No current violation flagged |
| Lakewood City OfCO0130467 | 6,000 | Surface water purchased | No current violation flagged |
| Edgewater City OfCO0130237 | 5,300 | Surface water purchased | Other current violation flag |
| High View WdCO0130344 | 4,000 | Surface water purchased | No current violation flagged |
| Genesee WsdCO0130035 | 3,920 | Surface water | No current violation flagged |
| Meadowbrook WdCO0130500 | 3,290 | Surface water purchased | No current violation flagged |
| South Sheridan Water And Sewer DistCO0130718 | 2,500 | Surface water purchased | No current violation flagged |
02 / SOURCE MIX
Primary water sources for Jefferson, Colorado
EPA classifies 20 systems serving Jefferson, Colorado across 2 primary-source categories; Surface water is the largest category with 7 systems.
It is the sum of each listed system's reported population served, not a census estimate. Service areas can overlap and some systems list multiple cities or counties.