Water system · PWSID NJ1326002
MANALAPAN TWP - KNOB HILL
PWSID
NJ1326002
State
New Jersey
City
MANALAPAN
Population served
8,700
Primary source
SWP
Score history
▼ 32 points — the score moved from 100 to 68 on Jun 18, 2026, as newly published EPA data was incorporated.
2 score updates logged since tracking began Jun 18, 2026. Each future EPA re-score adds a point.
PFAS & contaminant readings
Latest detections from EPA’s UCMR5 monitoring (through Jun 2024). Levels in parts per trillion (ppt).
PFOA
Perfluorooctanoic acid
7.8 ppt
limit 4 ppt
PFBA
7.6 ppt
limit —
PFPeA
4.8 ppt
limit —
PFHxA
4.6 ppt
limit —
Violations & enforcement
3
Violations on record
0
Unaddressed
0
Health-based
10
Enforcement actions
From EPA ECHO (SDWIS), most recent enforcement Aug 2011. Official EPA record →
Recent enforcement actions
- State action · SOX Aug 2011
- State action · SFJ Jul 2011
- State action · SFJ Jun 2006
- State action · SOX May 2006
- State action · SOX Jul 1997
- State action · SFM Mar 1997
- State action · SFL Mar 1997
- State action · SOX Mar 1997
Area water-quality monitoring
Environmental monitoring (rivers, wells, intakes) recorded in this system’s service area in the EPA/USGS Water Quality Portal since 2018 — source/ambient water, not finished tap water. Context for the watershed, not a reading from your tap.
Nitrate
1 station · latest Aug 2021
Copper
1 station · latest Aug 2021
Fluoride
1 station · latest Aug 2021
Lead
1 station · latest Aug 2021
Manganese
1 station · latest Aug 2021
Source: Water Quality Portal (EPA/USGS/state agencies). Values are as-reported and aren’t health thresholds.
This profile is built from EPA public records for system NJ1326002 — SDWIS violations and UCMR5 PFAS sampling. The score is system-level and can’t account for your home’s plumbing (older pipes can add lead at the tap). For health decisions, check your exact address, read the utility’s Consumer Confidence Report, and confirm with your provider.