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

COUNTY WATER-SYSTEM LEDGER

Coos, New Hampshire

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

Systems4active CWS · pop. 2,500+
Population served17,355reported total; may overlap
Current violation flag0.0%0 systems
Serious-violator flag0.0%0 systems

01 / SYSTEMS

Water systems serving Coos

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

Water systemPopulation servedPrimary sourceCurrent export status
Berlin Water WorksNH02310109,575Surface waterNo current violation flagged
Groveton Water SysNH17810102,650Ground waterNo current violation flagged
Gorham Water And Sewer DeptNH09210102,630Surface waterNo current violation flagged
Lancaster Water DeptNH12910102,500Surface waterNo current violation flagged

02 / SOURCE MIX

Surface water3 systems · 14,705 served
Ground water1 systems · 2,650 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.