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

COUNTY WATER-SYSTEM LEDGER

Middlesex, New Jersey

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

Systems15active CWS · pop. 2,500+
Population served718,503reported total; may overlap
Current violation flag40.0%6 systems
Serious-violator flag20.0%3 systems

01 / SYSTEMS

Water systems serving Middlesex

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

Water systemPopulation servedPrimary sourceCurrent export status
Middlesex Water CompanyNJ1225001233,376Surface waterNo current violation flagged
Old Bridge MuaNJ120900268,000Surface water purchasedCurrent monitoring/reporting flag
New Brunswick W DeptNJ121400155,000Surface waterNo current violation flagged
Perth Amboy Water DepartmentNJ121600152,328Groundwater under influence of surface waterCurrent serious-violator flag
East Brunswick Water UtilityNJ120400149,715Surface water purchasedNo current violation flagged
South Brunswick Twp W DiNJ122100445,450Surface water purchasedNo current violation flagged
Sayreville W DeptNJ121900145,345Groundwater under influence of surface waterNo current violation flagged
North Brunswick W DeptNJ121500143,905Surface waterNo current violation flagged
Monroe Twp Utility DepartmentNJ121300236,000Ground waterNo current violation flagged
Edison Water CoNJ120500135,000Surface water purchasedCurrent serious-violator flag
South River W DeptNJ122300116,000Surface water purchasedCurrent monitoring/reporting flag
Highland Park W DeptNJ120700114,000Surface water purchasedNo current violation flagged
Matawan Borough Water DeNJ13290019,084Surface water purchasedNo current violation flagged
Spotswood W DeptNJ12240018,300Surface water purchasedCurrent monitoring/reporting flag
Milltown W DeptNJ12120017,000Surface water purchasedCurrent serious-violator flag

02 / SOURCE MIX

Surface water3 systems · 332,281 served
Surface water purchased9 systems · 252,549 served
Groundwater under influence of surface water2 systems · 97,673 served
Ground water1 systems · 36,000 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.