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

COUNTY WATER-SYSTEM LEDGER

Collin, Texas

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

Systems27active CWS · pop. 2,500+
Population served1,260,082reported total; may overlap
Current violation flag22.2%6 systems
Serious-violator flag0.0%0 systems

01 / SYSTEMS

Water systems serving Collin

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

Water systemPopulation servedPrimary sourceCurrent export status
City Of PlanoTX0430007292,059Surface water purchasedNo current violation flagged
City Of FriscoTX0430005231,910Surface water purchasedNo current violation flagged
City Of MckinneyTX0430039224,043Surface water purchasedNo current violation flagged
City Of AllenTX0430025113,746Surface water purchasedNo current violation flagged
City Of CelinaTX043000352,701Surface water purchasedNo current violation flagged
City Of WylieTX043001148,393Surface water purchasedNo current violation flagged
Town Of ProsperTX043000942,598Surface water purchasedNo current violation flagged
City Of PrincetonTX043000837,019Surface water purchasedNo current violation flagged
City Of MelissaTX043004026,234Surface water purchasedNo current violation flagged
Culleoka WscTX043003024,615Surface water purchasedNo current violation flagged
City Of AnnaTX043002723,960Surface water purchasedOther current violation flag
City Of MurphyTX043004221,082Surface water purchasedNo current violation flagged
East Fork SudTX043003317,589Surface water purchasedNo current violation flagged
Bear Creek SudTX043003715,822Surface water purchasedNo current violation flagged
Wylie Northeast SudTX043005111,430Surface water purchasedCurrent monitoring/reporting flag
Town Of FairviewTX043003411,100Surface water purchasedNo current violation flagged
North Collin SudTX043005510,716Surface water purchasedOther current violation flag
City Of JosephineTX04300369,800Surface water purchasedCurrent monitoring/reporting flag
Copeville SudTX04300298,438Surface water purchasedNo current violation flagged
City Of LucasTX04300548,378Surface water purchasedNo current violation flagged
City Of ParkerTX04300456,486Surface water purchasedNo current violation flagged
City Of FarmersvilleTX04300045,312Surface water purchasedCurrent monitoring/reporting flag
Nevada SudTX04300534,218Surface water purchasedNo current violation flagged
Verona SudTX04300483,672Ground waterCurrent monitoring/reporting flag
Milligan WscTX04300413,364Surface water purchasedNo current violation flagged
North Custer Road PlantTX04300772,754Ground waterNo current violation flagged
Frognot SudTX04300352,643Ground waterNo current violation flagged

02 / SOURCE MIX

Surface water purchased24 systems · 1,251,013 served
Ground water3 systems · 9,069 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.