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

COUNTY WATER-SYSTEM LEDGER

Merrimack, 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.

Systems9active CWS · pop. 2,500+
Population served76,815reported total; may overlap
Current violation flag0.0%0 systems
Serious-violator flag0.0%0 systems

01 / SYSTEMS

Water systems serving Merrimack

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

Water systemPopulation servedPrimary sourceCurrent export status
Concord Water DeptNH050101044,215Surface waterNo current violation flagged
Franklin Water WorksNH08510107,200Ground waterNo current violation flagged
Pembroke Water WorksNH18610105,200Ground waterNo current violation flagged
Central Hooksett Water PctNH11810104,650Surface water purchasedNo current violation flagged
Penacook Boscawen Water PctNH02510103,800Ground waterNo current violation flagged
New London Springfield WaterNH17210103,250Ground waterNo current violation flagged
Cogswell Springs Water WorksNH11210103,000Ground waterNo current violation flagged
Hooksett Village Water PctNH11810203,000Ground waterNo current violation flagged
Tilton Northfield Water DistNH23510102,500Ground waterNo current violation flagged

02 / SOURCE MIX

Surface water1 systems · 44,215 served
Ground water7 systems · 27,950 served
Surface water purchased1 systems · 4,650 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.