EPA EXPORT · 13 SEP 2026FEDERAL COMPLIANCE RECORDS · NOT A HOME WATER TEST
TAP WATERLEDGERPublic system compliance records

COUNTY WATER-SYSTEM LEDGER

Weld, Colorado

Compare active community water systems serving this county in EPA's public export. Systems can serve multiple places, so population totals may overlap.

Systems18active CWS · pop. 2,500+
Population served339,895reported total; may overlap
Current violation flag5.6%1 systems
Serious-violator flag0.0%0 systems

01 / SYSTEMS

Water systems serving Weld

Ordered by reported population served. Open any record for separate health, monitoring, notice, other, and serious-violator flags.

Water systemPopulation servedPrimary sourceCurrent export status
Greeley City OfCO0162321132,310Surface waterNo current violation flagged
Firestone Town OfCO016247627,798Surface water purchasedNo current violation flagged
Johnstown Town OfCO016241827,295Surface waterNo current violation flagged
Windsor Town OfCO016284323,500Surface water purchasedNo current violation flagged
Evans City OfCO016226019,369Surface water purchasedNo current violation flagged
Frederick Town OfCO016228817,173Surface water purchasedCurrent monitoring/reporting flag
North Weld County WdCO016255315,890Surface water purchasedNo current violation flagged
Ft Lupton City OfCO016229112,099Surface waterNo current violation flagged
Severance Town OfCO016270711,733Surface water purchasedNo current violation flagged
Milliken Town OfCO01625119,200Surface water purchasedNo current violation flagged
Central Weld Cnty WdCO01621227,662Surface water purchasedNo current violation flagged
Eaton Town OfCO01622337,328Surface water purchasedNo current violation flagged
Dacono City OfCO01622006,900Surface water purchasedNo current violation flagged
Lochbuie Town OfCO01624866,518Ground waterNo current violation flagged
Keenesburg Town OfCO01624384,650Ground waterNo current violation flagged
Ault Town OfCO01621254,220Surface water purchasedNo current violation flagged
Hudson Town OfCO01623593,350Surface water purchasedNo current violation flagged
Platteville Town OfCO01626152,900Surface water purchasedNo current violation flagged

02 / SOURCE MIX

Surface water3 systems · 171,704 served
Surface water purchased13 systems · 157,023 served
Ground water2 systems · 11,168 served
How to read the population total

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.