WaterVerge

Is Hamilton Twp-0112, NJ Tap Water Safe to Drink?

Graded C — but Copper and PFOA were detected above EPA limits. Here's what's in the water and how to remove it. What to do next ↓

23K residents served 3 water systems PWSID: NJ0112001
Overall Score
63.3 / 100
Violations
12 active
Last Updated
May 2026
Source
Groundwater
#317 of 435 in New Jersey Top 75% nationally
Local Government
High data confidence
Reviewed by WaterVerge Editorial Team · Last updated May 2026
CGRADE
Water Quality Grade
63.3/100
waterverge.com
C 63.3/100

Hamilton Twp-0112, NJ — Water Quality Report

Hamilton Twp-0112's drinking water received a grade of C (63.3 out of 100), indicating fair water quality. The city's 3 water systems serve approximately 23,190 residents using groundwater.

Lead levels were measured at 0.0 ppb (90th percentile), well within EPA limits. UCMR 5 testing detected 1 PFAS compound, with levels exceeding EPA maximum contaminant levels in the water supply.

The system has 160 violations on record, including 4 health-based violations. 12 remain unresolved.

Data last updated: May 2026 · Source: EPA SDWIS, UCMR 5
Analysis

What to know about Hamilton Twp-0112's water

Hamilton Twp-0112 ranks #317 out of 435 cities in New Jersey for water quality, placing it below average in the state.

Hamilton Twp-0112 relies on groundwater, which is generally less vulnerable to surface contamination but can be affected by naturally occurring minerals like arsenic and nitrate, as well as agricultural and industrial runoff.

Of particular concern: PFAS "forever chemical" levels exceed the 2024 EPA maximum contaminant levels. These synthetic compounds don't break down naturally and require specialized filtration such as reverse osmosis or granular activated carbon.

Hexavalent chromium (chromium-6) was detected at 0.11 µg/L in UCMR 3 testing. While below California's 10 µg/L limit and with no federal MCL set, residents sensitive to this contaminant may consider reverse osmosis filtration.

The system has seen 8 violations in the past five years, suggesting a pattern of compliance challenges that residents should monitor closely.

Quality Breakdown

Water quality score

See methodology →
63.3 out of 100 Grade C
A: 90-100
B: 74-89
C: 60-73
F: <50
How is this calculated?
Violations
22/45
D
Historical violation record including health-based and monitoring violations.
Lead & Copper
16/20
B
Lead at 0.0 ppb (90th percentile).
Contaminants
12.3/20
C
1 PFAS compound detected.
Compliance
8/10
B
Monitoring and reporting compliance with EPA regulations.
Source Risk
5/5
A
Water source: Groundwater.
Water Safety

Is Hamilton Twp-0112, NJ water safe to drink?

Concerns Identified

Hamilton Twp-0112's drinking water has significant quality concerns based on EPA testing data. With a grade of C (63.3/100), the system has issues across multiple categories. A water filter is recommended for all residents. The city's 3 water systems serve approximately 23,190 residents using groundwater (wells).

12
Active Violations
0.0 ppb
Lead (90th %ile)
1 compound
PFAS Detected
10 events
Disaster History

Recent water quality updates for Hamilton Twp-0112

A timeline of significant water quality events, violations, and data updates.

PFAS
1 PFAS "forever chemical" compound detected

PFAS levels exceed EPA maximum contaminant levels. Reverse osmosis or activated carbon filtration recommended.

Update
Water quality data updated

Latest EPA compliance and testing data incorporated into Hamilton Twp-0112's water quality assessment. Grade: C (63.3/100).

Violation
1 drinking water violation recorded

Contaminants: Lead and Copper Rule.

Violation
1 drinking water violation recorded

Contaminants: Lead and Copper Rule.

Violation
1 drinking water violation recorded

1 health-based. Contaminants: Lead and Copper Rule.

Disaster
REMNANTS OF HURRICANE IDA

Federal disaster declaration (FEMA DR-4614). Hurricane event — may have impacted local water infrastructure.

Key contaminant findings

Based on the most recent EPA sampling data for Hamilton Twp-0112's water supply.

Lead Within Limits
Detected: 0.0 ppb Limit: 15 ppb (EPA Action Level)

Well within EPA limits.

Copper Exceeds Limit
Detected: 2.20 mg/L Limit: 1.3 mg/L (EPA Action Level)

Exceeds EPA action level. Copper can leach from household plumbing — flush taps for 30 seconds before drinking.

PFAS (1 compound) Exceeds Limit
Detected: Highest: PFOA at 0.0052 µg/L Limit: 0.004 µg/L (EPA MCL)

PFAS "forever chemicals" exceed EPA maximum contaminant levels. Reverse osmosis or granular activated carbon filtration strongly recommended.

Violation history

Hamilton Twp-0112's water system has 160 total violations on record, including 4 health-based violations. 12 remain unresolved. 8 violations were issued in the last 5 years.

MRTTOtherRPTMONMCL
Most recent violations:
Dec 2024 Lead and Copper Rule Open
Apr 2023 Lead and Copper Rule Open
Jan 2023 Lead and Copper Rule Resolved
Jul 2022 Lead and Copper Rule Resolved
Jul 2022 Lead and Copper Rule Resolved

Flood & environmental risk

Atlantic County has experienced 10 federally declared disasters since 1998. Flooding and severe storms can overwhelm water treatment plants, cause sewage overflows, and introduce agricultural runoff, bacteria, and sediment into drinking water supplies. Local water sources include Great Egg Harbor River At Folsom, Tuckahoe River At Head Of River.

REMNANTS OF HURRICANE IDA
Hurricane FEMA DR-4614
REMNANTS OF HURRICANE IDA
Hurricane FEMA DR-3573
TROPICAL STORM ISAIAS
Hurricane FEMA DR-4574

Where does Hamilton Twp-0112's water come from?

Hamilton Twp-0112's drinking water comes from groundwater (wells), supplied by 3 water systems serving approximately 23,190 people. Groundwater is generally less susceptible to surface contamination but can contain naturally occurring contaminants like arsenic, radon, and nitrate. Nearby water bodies include Great Egg Harbor River At Folsom (river), Tuckahoe River At Head Of River (river).

What Hamilton Twp-0112 residents can do

Install a water filter

Recommended: Reverse osmosis system. This addresses the specific contaminants found in Hamilton Twp-0112's water.

Request your utility's CCR

Your water utility is required to publish an annual Consumer Confidence Report (CCR) with detailed testing results. Ask for the latest copy or check your utility's website.

Monitor alerts during storms

Hamilton Twp-0112's area has a history of flooding. After severe weather, watch for boil water advisories from your local utility.

Data: EPA SDWIS, UCMR 5 (PFAS), FEMA, NOAA. Last updated May 2026.

Contaminant Alerts

Top contaminants to know

View all ↓
Lead (90th percentile)
Inorganic / Heavy Metal
Safe
0.0 ppb
EPA Action Level: 15 ppb · 0% of limit
Safe Level
Copper (90th percentile)
Inorganic
Over Limit
2.20 mg/L
EPA Action Level: 1.3 mg/L · +20% over limit
Exceeds Limit
PFOA
PFAS / Forever Chemical
Over MCL
0.0052 µg/L
EPA MCL: 0.004 µg/L · +20% over limit
Exceeds MCL
HAA5 (Disinfection Byproducts)
Disinfection Byproduct
Safe
2.1 µg/L
EPA MCL: 60 µg/L · 3% of limit
Within LimitUCMR 4 DataHAA6Br: 1.1 µg/LHAA9: 2.9 µg/L
Chromium-6 (Hexavalent Chromium)
Inorganic
Detected
0.11 µg/L
CA MCL (no federal MCL): 10 µg/L · 1% of limit
DetectedUCMR 3 Data
Strontium
Inorganic
Detected
146.8 µg/L
EPA Health Ref Level: 1,500 µg/L · 10% of limit
DetectedUCMR 3 Data
Manganese
Inorganic
Detected
28.8 µg/L
EPA Secondary MCL: 50 µg/L · 58% of limit
DetectedUCMR 4 Data
Vanadium
Inorganic
Detected
0.30 µg/L
EPA Short-term HA: 21 µg/L · 1% of limit
DetectedUCMR 3 Data
Chlorate
Disinfection Byproduct
Elevated
190.0 µg/L
EPA Lifetime HA: 210 µg/L · 90% of limit
DetectedUCMR 3 Data
Cobalt
Inorganic
Detected
1.71 µg/L
No federal limit: N/A µg/L · 50% of limit
DetectedNo federal MCLUCMR 3 Data
PFAS Testing

Forever chemicals overview

National PFAS report →
30
Compounds tested
1
Detected
1
Exceed EPA MCL
1.30
Hazard Index
PFOA max: 0.0052 µg/L
Compliance Record

Violation summary

160
Total violations
4
Health-based
12
Active / unresolved
Dec 2024
Most recent violation
Compliance Record

Violations & advisories

160 Total
12 Active
4 Health-based
148 Resolved
Violations by category
Inorganic Chemicals
53
Radionuclides and Revised Rad Rule
42
Volatile Organic Chemicals
22
Stage 1 Disinfectants and Disinfection Byproducts Rule
11
Lead and Copper Rule
8
Dec 2024 Active
Lead and Copper Rule
Monitoring & Reporting
Monitoring & Reporting 0
Apr 2023 Active
Lead and Copper Rule
Monitoring & Reporting
Monitoring & Reporting 0
Sep 2020 Active
Lead and Copper Rule
Monitoring & Reporting
Monitoring & Reporting 0
Oct 2019 Active
Consumer Confidence Rule
Other Violation 0
Jul 2019 Active
Lead and Copper Rule
Monitoring & Reporting
Monitoring & Reporting 0
Jan 2018 Active
Revised Total Coliform Rule
Reporting
Reporting 0
Sep 2017 Active
Revised Total Coliform Rule
Reporting
Reporting 0
Jun 2012 Active
E. COLI
Monitoring & Reporting
Monitoring & Reporting 0
Jul 2011 Active
Consumer Confidence Rule
Other Violation 0
Active
Compliance Violation
Monitoring 0
Active
Compliance Violation
Monitoring 0
Active
Compliance Violation
Monitoring 0
Jan 2023 Resolved
Lead and Copper Rule
Treatment Technique
Health-Based Health Resolved Jun 2023
Jul 2022 Resolved
Lead and Copper Rule
Treatment Technique
Health-Based Health Resolved Dec 2022
Jul 2022 Resolved
Lead and Copper Rule
Monitoring & Reporting
Monitoring & Reporting Resolved Dec 2022
Jan 2022 Resolved
Chlorine
Monitoring & Reporting
Monitoring & Reporting Resolved Mar 2022
Jan 2022 Resolved
Chlorine
Monitoring & Reporting
Monitoring & Reporting Resolved Mar 2022
Jan 2022 Resolved
Chlorine
Monitoring & Reporting
Monitoring & Reporting Resolved Mar 2022
Feb 2020 Resolved
TTHM
Monitoring & Reporting
Monitoring & Reporting Resolved May 2020
Feb 2020 Resolved
Total Haloacetic Acids (HAA5)
Monitoring & Reporting
Monitoring & Reporting Resolved May 2020
Showing 20 of 160 violations
Environmental Risk

Drought conditions

D2 — severe drought

Atlantic County is currently in D2 (severe drought) per the U.S. Drought Monitor (week of May 5, 2026). Drought can elevate disinfection-byproduct (TTHM/HAA5) levels and taste/odor issues as utilities draw from lower reservoirs.

2
Weeks at D2+ (current streak)
7.4%
Months in D2+ (last 30y)
2
Weeks at D2+ (last 5y)

Source: U.S. Drought Monitor, updated weekly by NDMC, USDA, and NOAA.

Environmental Risk

Flood & disaster history

10
Declared disasters
Sep 2021
Most recent
Hurricane
Most common type

Atlantic County has experienced 10 federally declared disasters since 1998. Flooding and severe weather can compromise water treatment infrastructure and introduce contaminants into drinking water supplies.

Sep 2021
REMNANTS OF HURRICANE IDA
Hurricane FEMA #4614
Sep 2021
REMNANTS OF HURRICANE IDA
Hurricane FEMA #3573
Dec 2020
TROPICAL STORM ISAIAS
Hurricane FEMA #4574
Oct 2012
HURRICANE SANDY
Hurricane FEMA #4086
Oct 2012
HURRICANE SANDY
Hurricane FEMA #3354
Aug 2011
HURRICANE IRENE
Hurricane FEMA #4021

Recommended water filters

Based on contaminants detected in Hamilton Twp-0112's water supply, we recommend the following filter types.

🧪
For PFAS
Reverse Osmosis or Activated Carbon Block
PFAS compounds exceed EPA maximum contaminant levels
🔧
For Copper
Reverse Osmosis or KDF Filter
Copper exceeds the EPA action level of 1.3 mg/L

Full contaminants report

Contaminant Detected Level EPA Limit Unit Category Status
Lead (90th percentile) 0.0 15 ppb Inorganic Safe
Copper (90th percentile) 2.20 1.3 mg/L Inorganic Over Limit
11Cl-PF3OUdS ND HI µg/L PFAS Not Detected
4:2 FTS ND HI µg/L PFAS Not Detected
6:2 FTS ND HI µg/L PFAS Not Detected
8:2 FTS ND HI µg/L PFAS Not Detected
9Cl-PF3ONS ND HI µg/L PFAS Not Detected
ADONA ND HI µg/L PFAS Not Detected
HFPO-DA ND 0.01 µg/L PFAS Not Detected
lithium ND HI µg/L PFAS Not Detected
NEtFOSAA ND HI µg/L PFAS Not Detected
NFDHA ND HI µg/L PFAS Not Detected
NMeFOSAA ND HI µg/L PFAS Not Detected
PFBA ND HI µg/L PFAS Not Detected
PFBS ND HI µg/L PFAS Not Detected
PFDA ND HI µg/L PFAS Not Detected
PFDoA ND HI µg/L PFAS Not Detected
PFEESA ND HI µg/L PFAS Not Detected
PFHpA ND HI µg/L PFAS Not Detected
PFHpS ND HI µg/L PFAS Not Detected
PFHxA ND HI µg/L PFAS Not Detected
PFHxS ND HI µg/L PFAS Not Detected
PFMBA ND HI µg/L PFAS Not Detected
PFMPA ND HI µg/L PFAS Not Detected
PFNA ND HI µg/L PFAS Not Detected
PFOA 0.005 0.004 µg/L PFAS Over MCL
PFOS ND 0.004 µg/L PFAS Not Detected
PFPeA ND HI µg/L PFAS Not Detected
PFPeS ND HI µg/L PFAS Not Detected
PFTA ND HI µg/L PFAS Not Detected
PFTrDA ND HI µg/L PFAS Not Detected
PFUnA ND HI µg/L PFAS Not Detected
Data source: EPA SDWIS, UCMR 5, local utility CCR.

Lead level trend (90th percentile)

EPA action level: 15 ppb
Lead has decreased by 43.0 ppb from 1992 (43.0 ppb) to 2025 (0.0 ppb).

Copper level trend (90th percentile)

EPA action level: 1.3 mg/L
Copper has decreased by 0.570 mg/L from 1994 (2.770 mg/L) to 2006 (2.200 mg/L).
Contaminant Rankings

See how Hamilton Twp-0112 compares by contaminant

Explore where Hamilton Twp-0112 ranks among all New Jersey cities for specific contaminants.

Infrastructure

Water source & infrastructure

Primary Source
Groundwater
Operator
Local Government
Population Served
23,190
Water Systems
3
Source breakdown
Groundwater
2
Purchased Groundwater
1
Water Source

Where Hamilton Twp-0112's water comes from

Groundwater

Hamilton Twp-0112's drinking water is drawn from underground aquifers through wells.

Groundwater is naturally filtered through rock and soil layers, generally requiring less treatment than surface water. However, it can contain naturally occurring contaminants like arsenic, radon, and minerals.

Agricultural activity, septic systems, and industrial operations near well fields can introduce nitrates, pesticides, and volatile organic compounds.

The system is operated by local government ownership and serves approximately 23,190 people through 3 water systems.

Local Hydrology

Water bodies near Hamilton Twp-0112

Hamilton Twp-0112 is located near 2 notable water bodies. These water bodies contribute to the regional watershed and may indirectly affect groundwater quality.

Great Egg Harbor River At Folsom
river
Tuckahoe River At Head Of River
river
Infrastructure

Water systems serving Hamilton Twp-0112

System Name PWSID Population Source
HAMILTON TOWNSHIP MUA NJ0112001 21,720 GW
THE OAKS OF WEYMOUTH WATER CO. NJ0123002 750 GW
WEYMOUTH TWSP MUA NJ0123001 720 GWP
Regional Comparison

How Hamilton Twp-0112 compares

Full New Jersey rankings →

Hamilton Twp-0112's score of 63.3/100 is on par with the average of 63/100 among major New Jersey cities. It outscores 4 of 10 nearby cities. 6 of 10 nearby cities score higher.

Hamilton Twp-0112 (this city)
63.3
New Jersey avg
63
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Frequently asked questions

Is Hamilton Twp-0112, NJ tap water safe to drink?

Hamilton Twp-0112's water quality earned a grade of C (63.3/100). Some concerns have been identified. Consider a water filter for an extra layer of protection. The city ranks #317 out of 435 cities tested in New Jersey.

What contaminants are in Hamilton Twp-0112's water?

Lead was measured at 0.0 ppb (90th percentile). 1 PFAS compound was detected. 160 violations are on record.

How is Hamilton Twp-0112's water quality grade calculated?

The grade is based on four factors: violation history (40%), lead and copper levels (25%), PFAS contamination (25%), and regulatory compliance (10%). The score is also adjusted based on how complete the available data is. See our methodology page for full details.

Do I need a water filter in Hamilton Twp-0112?

PFAS compounds exceed EPA limits — a reverse osmosis or activated carbon filter is recommended.

Where does Hamilton Twp-0112's water come from?

Hamilton Twp-0112's water is sourced from Groundwater. The city has 3 water systems serving approximately 23,190 residents.

What health violations has Hamilton Twp-0112's water system had?

Hamilton Twp-0112 has 4 health-based violations on record. The most recent violation was recorded in December 2024. Health-based violations mean the water exceeded EPA maximum contaminant levels (MCLs) for a regulated substance. 12 violations remain unresolved.

Is Hamilton Twp-0112's groundwater at risk of contamination?

Hamilton Twp-0112 uses groundwater, which can be affected by naturally occurring contaminants like arsenic, radon, and nitrate, as well as agricultural runoff and industrial activity. The system has 160 violations on record that may relate to groundwater quality. Groundwater systems are generally less susceptible to surface contamination but should be monitored for emerging contaminants like PFAS.

How does Hamilton Twp-0112's water compare to other cities?

Hamilton Twp-0112 ranks #317 out of 435 cities in New Jersey (better than 27% of state cities) and #11769 out of 15744 cities nationally (25th percentile). The grade of C reflects the combined assessment of violation history, lead and copper levels, PFAS contamination, and regulatory compliance.