Tapcensus

Water quality for ZIP code 80634

ZIP 80634 covers Greeley, Evans, and Milliken in Weld County, Colorado, one of 35 ZIP codes in the county. 79 active public water systems serve the county; 39 had an EPA violation in the past three years.

Most likely your provider

Greeley City of CO0162321 · Community water system · Surface water
Serves 132,310 people Rules violated, past 3 years 2 Last sanitary survey Sep 30, 2025 Distance 1.2 mi

Your location is within the outer bounds of this system's EPA service area.

View system details EPA facility report

Other community water systems in Weld County

57 systems, nearest first
SystemServesStatusRules violated, 3 yrDistance
Cave Creek
Evans		 1,025 0 4.4 mi
Evans City of
 19,369 2 4.7 mi
LA Salle Town of
 2,010 4 6.0 mi
Milliken Town of
 9,200 2 6.3 mi
Windsor Town of
 23,500 0 8.1 mi
Gilcrest Town of
 1,150 0 8.2 mi
Severance Town of
 11,733 2 9.1 mi
Eaton Town of
 7,328 3 9.6 mi
Johnstown Town of
 27,295 1 9.7 mi
Central Weld Cnty WD
 7,662 0 9.9 mi
North Weld County WD
 15,890 0 9.9 mi
Kersey WD
 2,101 1 12.3 mi
Ault Town of
 4,220 2 12.6 mi
Platteville Town of
 2,900 0 13.0 mi
Serenity Ridge Vault Connection
Berthoud		 157 0 15.2 mi
Pierce Town of
 1,094 0 15.9 mi
Fox Hill Water Association INC
 44 0 18.2 mi
Firestone Town of
 27,798 0 19.4 mi
Eagle Crest MHP
 441 0 19.6 mi
Nunn Town of
 499 0 20.9 mi
Aristocrat Ranchette Water Project
 1,715 3 20.9 mi
FT Lupton City of
 12,099 3 22.3 mi
Frederick Town of
 17,173 2 22.3 mi
Dacono City of
 6,900 1 23.8 mi
Hudson Town of
 3,350 2 24.3 mi
All 58 community water systems in Weld County
Non-community systems in Weld County (21: schools, campgrounds, workplaces, restaurants)

These systems serve places you visit rather than homes.

SystemServesStatusRules violated, 3 yrUnresolved
Greeley RV Park South
 126 0 0
Salt & Acres
 158 3 0
Fourway Baptist Church
 45 0 0
Great Guns Sporting
 33 2 1
RM INC
 52 0 0
Ceesi
 30 1 1
Tagawa Greenhouses INC
 250 1 0
Roggen Motel
 27 0 0
Wild Animal Sanctuary the
 97 0 0
Mountain States Jatc Training Facility
 100 0 0
Opal Foods LLC Roggen Farm
 27 0 0
Briggsdale School
 194 1 0
Cardinal Community Academy
 120 0 0
Prairie Elem at New Raymer
 275 2 0
Peak Oilfield Services LLC
 150 3 1
Crow Valley Campground
 57 2 1
Stoneham Village
 51 2 0
Opal Foods LLC Hudson Farm
 49 2 2
Redtail Gas Plant
 48 0 0
Rocky Mountain Energy Center
 39 0 0
Shortgrass Steppe Campus
 30 1 0
About this data

Water systems are matched to Weld County, the county this ZIP code lies in, nearest to the ZIP code's centre first. Your exact provider depends on your address and connection; the largest community water system in a county is usually the city or town utility. Distances are measured to the centre of the service area EPA publishes for the system or, for systems without one, to the centre of the first town EPA lists the system as serving, from Census Bureau place files.

ZIP code areas and town boundaries come from the U.S. Census Bureau's 2020 ZCTA files.

Source: the U.S. EPA's Enforcement and Compliance History Online system (ECHO), which publishes the federal Safe Drinking Water Information System. EPA's terms and values are shown as published. The Colorado records are from EPA's data refresh of Oct 7, 2026; EPA refreshes this data quarterly, and states report to EPA with a lag of three to six months, so the newest violations may not appear yet. Retrieved from ECHO on Oct 11, 2026.