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JEFFERSON TWP W U MILTON SYS

PWS ID: NJ1414003 · LAKE HOPATCONG, New Jersey 07849

JEFFERSON TWP W U MILTON SYS serves 4,500 people in LAKE HOPATCONG, New Jersey using Groundwater water sources. It has 390 recorded EPA violations, including 14 health-based violations. PFAS "forever chemicals" were detected in UCMR5 testing (8 compounds found).

Water Quality Snapshot: JEFFERSON TWP W U MILTON SYS

JEFFERSON TWP W U MILTON SYS is a local-owned community water system that delivers drinking water to 4,500 residents in LAKE HOPATCONG, New Jersey (Morris County) through 1,568 service connections. Its water is drawn from groundwater sources. EPA's Safe Drinking Water Information System records 390 total violations for this system , of which 14 (4%) are health-based — meaning a contaminant exceeded an EPA Maximum Contaminant Level or a required treatment technique failed. A further 342 monitoring and reporting violations are on file. The most recent violation on record dates to 2025.

The most frequently cited contaminant at this system is Lead and Copper Rule, recorded in 41 violations (MR). Under EPA's UCMR5 PFAS monitoring program, 8 PFAS compounds were detected in samples collected from this system, with a maximum reported concentration of 17.1 ppt. PFAS are persistent synthetic chemicals linked to health effects at very low exposure levels.

Across New Jersey, EPA tracks 3,428 public water systems serving 9,570,926 people, with 204,988 cumulative violations and 22,229 health-based violations on record. About 95% of systems in the state carry at least one violation, and state-wide the average per system is 59.8 violations. JEFFERSON TWP W U MILTON SYS's 390 violations sit above the New Jersey average. Statewide, 208 of 264 UCMR5-tested systems have reported PFAS detections (78.8%). All figures above are sourced directly from EPA SDWIS and UCMR5 public data releases and are updated as EPA publishes new reporting cycles.

PFAS Detected

8 PFAS "forever chemicals" detected in testing under EPA's UCMR5 monitoring program.

Population Served
4,500
Total Violations
390
Health-Based Violations
14
Water Source
Groundwater

System Details

System Type
Community
Owner Type
Local
Connections
1,568
County
Morris
School/Daycare
No
MCL Violations
4
Monitoring Violations
342
Treatment Tech Violations
10

Violation History

Contaminant violations recorded by EPA.

Contaminant Category Count Latest
Lead and Copper Rule MR 41 2023
Chlorine MR 31 2023
Nitrate MR 17 2017
Consumer Confidence Rule Other 12 2024
E. COLI MR 12 2020
Lead and Copper Rule TT 10 2024
Xylenes, Total MR 9 2017
1,1-Dichloroethylene MR 9 2017
Arsenic MR 7 2002
Barium MR 7 2002
Cadmium MR 7 2002
Chromium MR 7 2002
CYANIDE MR 7 2002
Beryllium, Total MR 7 2002
Thallium, Total MR 7 2002
Fluoride MR 7 2002
Mercury MR 7 2002
Nickel MR 7 2002
1,2,4-Trichlorobenzene MR 7 2015
p-Dichlorobenzene MR 7 2015
cis-1,2-Dichloroethylene MR 7 2015
Vinyl chloride MR 7 2015
1,2-Dichloroethane MR 7 2015
1,2-Dichloropropane MR 7 2015
Trichloroethylene MR 7 2015
1,1,2-Trichloroethane MR 7 2015
Tetrachloroethylene MR 7 2015
CHLOROBENZENE MR 7 2015
Toluene MR 7 2015
Ethylbenzene MR 7 2015

PFAS Testing Results (UCMR5)

Results from EPA's Fifth Unregulated Contaminant Monitoring Rule. 25 of 180 samples detected PFAS.

Contaminant Date Result MRL Status
PFTA 5/12/2025 <0.008 µg/L 0.008 µg/L Not Detected
PFOA 5/12/2025 0.0115 µg/L 0.004 µg/L Detected
NMeFOSAA 5/12/2025 <0.006 µg/L 0.006 µg/L Not Detected
PFHpA 5/12/2025 0.0036 µg/L 0.003 µg/L Detected
PFHxS 5/12/2025 <0.003 µg/L 0.003 µg/L Not Detected
PFNA 5/12/2025 <0.004 µg/L 0.004 µg/L Not Detected
PFOS 5/12/2025 0.0068 µg/L 0.004 µg/L Detected
PFMPA 5/12/2025 <0.004 µg/L 0.004 µg/L Not Detected
NEtFOSAA 5/12/2025 <0.005 µg/L 0.005 µg/L Not Detected
PFTrDA 5/12/2025 <0.007 µg/L 0.007 µg/L Not Detected
PFBS 5/12/2025 0.0058 µg/L 0.003 µg/L Detected
PFHpS 5/12/2025 <0.003 µg/L 0.003 µg/L Not Detected
PFPeS 5/12/2025 <0.004 µg/L 0.004 µg/L Not Detected
NFDHA 5/12/2025 <0.02 µg/L 0.02 µg/L Not Detected
PFEESA 5/12/2025 <0.003 µg/L 0.003 µg/L Not Detected
lithium 5/12/2025 <9 µg/L 9 µg/L Not Detected
PFPeA 5/12/2025 0.0167 µg/L 0.003 µg/L Detected
PFDA 5/12/2025 <0.003 µg/L 0.003 µg/L Not Detected
11Cl-PF3OUdS 5/12/2025 <0.005 µg/L 0.005 µg/L Not Detected
PFDoA 5/12/2025 <0.003 µg/L 0.003 µg/L Not Detected
PFHxA 5/12/2025 0.0100 µg/L 0.003 µg/L Detected
PFMBA 5/12/2025 <0.003 µg/L 0.003 µg/L Not Detected
PFUnA 5/12/2025 <0.002 µg/L 0.002 µg/L Not Detected
8:2 FTS 5/12/2025 <0.005 µg/L 0.005 µg/L Not Detected
9Cl-PF3ONS 5/12/2025 <0.002 µg/L 0.002 µg/L Not Detected
ADONA 5/12/2025 <0.003 µg/L 0.003 µg/L Not Detected
HFPO-DA 5/12/2025 <0.005 µg/L 0.005 µg/L Not Detected
PFBA 5/12/2025 0.0066 µg/L 0.005 µg/L Detected
6:2 FTS 5/12/2025 <0.005 µg/L 0.005 µg/L Not Detected
4:2 FTS 5/12/2025 <0.003 µg/L 0.003 µg/L Not Detected
PFOS 5/12/2025 0.0053 µg/L 0.004 µg/L Detected
PFNA 5/12/2025 <0.004 µg/L 0.004 µg/L Not Detected
PFHxS 5/12/2025 <0.003 µg/L 0.003 µg/L Not Detected
PFHpA 5/12/2025 <0.003 µg/L 0.003 µg/L Not Detected
PFPeS 5/12/2025 <0.004 µg/L 0.004 µg/L Not Detected
PFDoA 5/12/2025 <0.003 µg/L 0.003 µg/L Not Detected
NFDHA 5/12/2025 <0.02 µg/L 0.02 µg/L Not Detected
PFEESA 5/12/2025 <0.003 µg/L 0.003 µg/L Not Detected
PFMBA 5/12/2025 <0.003 µg/L 0.003 µg/L Not Detected
NMeFOSAA 5/12/2025 <0.006 µg/L 0.006 µg/L Not Detected
NEtFOSAA 5/12/2025 <0.005 µg/L 0.005 µg/L Not Detected
PFBS 5/12/2025 <0.003 µg/L 0.003 µg/L Not Detected
HFPO-DA 5/12/2025 <0.005 µg/L 0.005 µg/L Not Detected
PFHpS 5/12/2025 <0.003 µg/L 0.003 µg/L Not Detected
PFPeA 5/12/2025 0.0042 µg/L 0.003 µg/L Detected
PFMPA 5/12/2025 <0.004 µg/L 0.004 µg/L Not Detected
8:2 FTS 5/12/2025 <0.005 µg/L 0.005 µg/L Not Detected
4:2 FTS 5/12/2025 <0.003 µg/L 0.003 µg/L Not Detected
PFOA 5/12/2025 0.0075 µg/L 0.004 µg/L Detected
PFBA 5/12/2025 <0.005 µg/L 0.005 µg/L Not Detected

Verify This Water System

The figures above are aggregated from EPA's public databases. To verify the underlying records — or to file a complaint, request a Consumer Confidence Report, or check current monitoring status — go directly to the federal and state regulators that enforce the Safe Drinking Water Act for JEFFERSON TWP W U MILTON SYS.

Federal Source of Truth

EPA SDWIS — Federal Reports

EPA's Safe Drinking Water Information System (SDWIS) holds the federal compliance record for every regulated public water system. Open the system-level report by PWS ID:

View PWS ID NJ1414003 on SDWIS

Source: EPA SDWIS Federal Reports Search

State Regulator

New Jersey Drinking Water Authority

NJ DEP — Bureau of Safe Drinking Water is the primacy agency that licenses and inspects JEFFERSON TWP W U MILTON SYS under EPA-delegated authority.

Open NJ regulator portal

Source: NJ DEP — Bureau of Safe Drinking Water

Violation Timeline

Each row links to the EPA SDWIS public record for verification. Cross-reference the contaminant code on EPA's federal report to see violation dates, return-to-compliance status, and enforcement actions.

Year (latest) Contaminant Category Count EPA Record
2025 Revised Total Coliform Rule MON 2 SDWIS / NJ1414003 / 8000
2025 Revised Total Coliform Rule RPT 1 SDWIS / NJ1414003 / 8000
2024 Consumer Confidence Rule Other 12 SDWIS / NJ1414003 / 7000
2024 Lead and Copper Rule TT 10 SDWIS / NJ1414003 / 5000
2023 Lead and Copper Rule MR 41 SDWIS / NJ1414003 / 5000
2023 Chlorine MR 31 SDWIS / NJ1414003 / 0999
2023 Public Notice Other 4 SDWIS / NJ1414003 / 7500
2020 E. COLI MR 12 SDWIS / NJ1414003 / 3014
2017 Nitrate MR 17 SDWIS / NJ1414003 / 1040
2017 Xylenes, Total MR 9 SDWIS / NJ1414003 / 2955
2017 1,1-Dichloroethylene MR 9 SDWIS / NJ1414003 / 2977
2015 1,2,4-Trichlorobenzene MR 7 SDWIS / NJ1414003 / 2378
2015 p-Dichlorobenzene MR 7 SDWIS / NJ1414003 / 2969
2015 cis-1,2-Dichloroethylene MR 7 SDWIS / NJ1414003 / 2380
2015 Vinyl chloride MR 7 SDWIS / NJ1414003 / 2976

How JEFFERSON TWP W U MILTON SYS Compares

Cross-reference this system's record against state averages and the federal MCL framework for context.

Metric JEFFERSON TWP W U MILTON SYS New Jersey avg Federal benchmark
Total violations 390 59.8 SDWA compliance — any non-zero count is a recorded breach
Health-based violations 14 6.5 Indicates a contaminant exceeded a federal MCL
PFAS detection 8 compounds 78.8% EPA final rule (2024): PFOA/PFOS MCL = 4.0 ppt
Population served 4,500 2,792 Sizing context for compliance burden

Sources: EPA SDWIS and EPA National Primary Drinking Water Regulations (40 CFR Part 141). State averages computed across 3,428 regulated public water systems in New Jersey.

Federal MCL reference — Safe Drinking Water Act thresholds ▼
Contaminant Federal MCL / Action Level Note
Lead 0 mg/L (Action Level: 0.015 mg/L) Lead and Copper Rule treatment technique
Arsenic 0.010 mg/L (10 ppb) Health-based MCL since 2006
Total Coliform Treatment technique (RTCR) Indicator organism, monitoring trigger
PFOA / PFOS (PFAS) 4.0 ppt each (final 2024 rule) Compliance deadline 2029
Nitrate (as N) 10 mg/L Acute health risk for infants

Frequently Asked Questions

Is JEFFERSON TWP W U MILTON SYS water safe to drink? ▼
JEFFERSON TWP W U MILTON SYS (PWS ID: NJ1414003) has 390 recorded violations in the EPA SDWIS database. PFAS contamination has been detected in UCMR5 testing, with 8 PFAS compounds found. This system serves 4,500 people using Groundwater sources.
How many people does JEFFERSON TWP W U MILTON SYS serve? ▼
JEFFERSON TWP W U MILTON SYS serves 4,500 people in LAKE HOPATCONG, New Jersey. It is a Local-owned system using Groundwater water sources with 1,568 service connections.
What type of violations does JEFFERSON TWP W U MILTON SYS have? ▼
JEFFERSON TWP W U MILTON SYS has 390 total violations: 14 health-based violations (MCL exceedances or treatment failures), 342 monitoring/reporting violations, and 10 treatment technique violations. Health-based violations indicate contaminant levels exceeded EPA safe limits.
Has PFAS been detected in JEFFERSON TWP W U MILTON SYS water? ▼
Yes. UCMR5 testing detected 8 PFAS compounds in JEFFERSON TWP W U MILTON SYS's water supply: PFOA, PFHpA, PFOS, PFBS, PFPeA, and others. PFAS are persistent "forever chemicals" that do not break down in the environment.
What water source does JEFFERSON TWP W U MILTON SYS use? ▼
JEFFERSON TWP W U MILTON SYS uses Groundwater as its primary water source. It is classified as a Community Water System (CWS), serving residential populations year-round.
Where does this data come from? ▼
All data comes from the EPA Safe Drinking Water Information System (SDWIS) and the UCMR5 PFAS monitoring program. SDWIS tracks compliance for all public water systems regulated under the Safe Drinking Water Act.

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Data Sources: EPA Safe Drinking Water Information System (SDWIS), Q4 2025. PFAS data from EPA UCMR5 monitoring program (2023-2025). This data is provided for informational purposes only.

Read our methodology — how this data is sourced, computed, and verified.

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Data sourced from $official public datasets. See our methodology for details. Retrieved and formatted by Kiznis Studio Editorial