Marlboro, NJ 07746

2 water systems • 75,676 residents

Moderate water quality - consider filtration

C

Score: 46/100

Graded on EPA violations, contaminants, severity, compliance, and enforcement history. See methodology.

Data updated June 2026 • Sources: EPA ECHO and EPA Envirofacts

27

Contaminants Detected

140

Violations on Record

13

Health-Based Violations

0

Recent Violations

Grade Breakdown

Contaminant Count0 / 25
Violation History16 / 25
Contaminant Severity17 / 25
System Compliance0 / 15
Enforcement History0 / 10
Total Score46%

46 / 100 points

Recommended Water Filters

  • ✓Point-of-Use Carbon Filter (NSF-certified for lead)
  • ✓Reverse Osmosis or Ion Exchange Filter
  • ✓Ultraviolet (UV) Purification
  • ✓Activated Carbon Filter (disinfection byproducts)
Compare filter types in our Filter Guide →

Consult a water quality specialist for personalized recommendations.

Marlboro vs NJ & National Average

Detected Contaminants

27 contaminants detected across water systems serving this ZIP code

ContaminantCategory
NitrateAgricultural
Total Haloacetic Acids (HAA5)Disinfection Byproduct
TTHMDisinfection Byproduct
Antimony, TotalHeavy Metal
ArsenicHeavy Metal
BariumHeavy Metal
Beryllium, TotalHeavy Metal
CadmiumHeavy Metal
ChromiumHeavy Metal
Lead and Copper RuleHeavy Metal
MercuryHeavy Metal
NickelHeavy Metal
SeleniumHeavy Metal
Thallium, TotalHeavy Metal
CYANIDEInorganic
FluorideInorganic
Coliform (TCR)Microorganism
Revised Total Coliform RuleMicroorganism
ChlorineOther
Consumer Confidence RuleOther
Surface Water Treatment RuleOther
Combined Radium (-226 and -228)Radiological
Combined UraniumRadiological
Gross Alpha, Excl. Radon and URadiological
Radium-226Radiological
Radium-228Radiological
1,1-DichloroethyleneVolatile Organic

Water System Information

Systems Serving This ZIP:
MARLBORO TOWNSHIP WATER UTILITY DIVISION, GORDONS CORNER WATER CO
Population Served:
75,676
Systems With Violations:
2 of 2
Major Violations:
88
Enforcement Actions:
139

Nearby Areas

07722

Colts Neck • 3.5 mi away

C

07751

Morganville • 4.4 mi away

D

07727

Farmingdale • 4.7 mi away

B

07716

Atlantic Highlands • 5.8 mi away

D

07734

Keansburg • 6 mi away

F

07747

Matawan • 6.2 mi away

D

Frequently Asked Questions

What does the grade mean?

Our A–F grade ranks this ZIP code's water quality against every other analyzed ZIP in the country, based on EPA data. A = among the best, F = among the most troubled.

Is my tap water safe to drink?

Water systems regulated by the EPA must comply with Safe Drinking Water Act standards. However, if you're concerned about water quality, consider a water filter appropriate for your contaminants.

How often is the data updated?

We update our data quarterly with the latest EPA ECHO and Envirofacts data. Historical violations are tracked to identify patterns.

What filters do you recommend?

Filter recommendations are based on detected contaminants in your area. See our Filter Guide for detailed information about different filter types.