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MOUNT OLIVE TWP W D MAIN — Water Quality Report 2026

Serving 7,887 people · New Jersey

Water Source

Groundwater

County

—

System ID

NJ1427005

Violations

233

Contaminant Test Results

3 contaminants above EPA health goals

Contaminant	Detected	Limit (MCL)	Goal (MCLG)	Status
Copper (90th percentile)	3.71 mg/L	1.30 mg/L	1.30 mg/L	Over Limit
PFOA	0.006 µg/L	0.004 µg/L	0 µg/L	Over Limit
PFOS	0.005 µg/L	0.004 µg/L	0 µg/L	Over Limit

EPA Violation History

Violations (last 5yr)

Unresolved

Health-Related

TIER 3Resolved

Surface water treatment technique failure

When: July 1, 2025 – July 22, 2025Enforcement: Resolving — corrective action underway

TIER 3Unresolved

Failed to issue ongoing public notification

This is a paperwork/process violation — it does not mean a contaminant was detected at unsafe levels.

When: July 1, 2025Rule: Ground Water RuleEnforcement: Informal — resolved cooperativelyVerify on EPA.gov

TIER 3Unresolved

Exceeded the MCL for disinfection byproducts

This is a paperwork/process violation — it does not mean a contaminant was detected at unsafe levels.

When: July 1, 2025 – September 30, 2025Verify on EPA.gov

TIER 3Unresolved

Exceeded the MCL for disinfection byproducts

This is a paperwork/process violation — it does not mean a contaminant was detected at unsafe levels.

When: July 1, 2025 – September 30, 2025Verify on EPA.gov

TIER 3Unresolved

Exceeded the MCL for disinfection byproducts

This is a paperwork/process violation — it does not mean a contaminant was detected at unsafe levels.

When: July 1, 2025 – September 30, 2025Verify on EPA.gov

TIER 3Unresolved

Exceeded the MCL for disinfection byproducts

This is a paperwork/process violation — it does not mean a contaminant was detected at unsafe levels.

When: July 1, 2025 – September 30, 2025Verify on EPA.gov

TIER 3Unresolved

Exceeded the MCL for disinfection byproducts

This is a paperwork/process violation — it does not mean a contaminant was detected at unsafe levels.

When: July 1, 2025 – September 30, 2025Verify on EPA.gov

TIER 3Unresolved

Exceeded the MCL for disinfection byproducts

This is a paperwork/process violation — it does not mean a contaminant was detected at unsafe levels.

When: July 1, 2025 – September 30, 2025Verify on EPA.gov

TIER 3Unresolved

Exceeded the MCL for disinfection byproducts

This is a paperwork/process violation — it does not mean a contaminant was detected at unsafe levels.

When: April 1, 2025 – June 30, 2025Enforcement: Informal — resolved cooperativelyVerify on EPA.gov

TIER 3Unresolved

Exceeded the MCL for disinfection byproducts

This is a paperwork/process violation — it does not mean a contaminant was detected at unsafe levels.

When: April 1, 2025 – June 30, 2025Enforcement: Informal — resolved cooperativelyVerify on EPA.gov

TIER 3Unresolved

Exceeded the MCL for disinfection byproducts

This is a paperwork/process violation — it does not mean a contaminant was detected at unsafe levels.

When: April 1, 2025 – June 30, 2025Enforcement: Informal — resolved cooperativelyVerify on EPA.gov

TIER 3Unresolved

Exceeded the MCL for disinfection byproducts

This is a paperwork/process violation — it does not mean a contaminant was detected at unsafe levels.

When: April 1, 2025 – June 30, 2025Enforcement: Informal — resolved cooperativelyVerify on EPA.gov

TIER 3Unresolved

Exceeded the MCL for disinfection byproducts

This is a paperwork/process violation — it does not mean a contaminant was detected at unsafe levels.

When: April 1, 2025 – June 30, 2025Enforcement: Informal — resolved cooperativelyVerify on EPA.gov

TIER 3Unresolved

Exceeded the MCL for disinfection byproducts

This is a paperwork/process violation — it does not mean a contaminant was detected at unsafe levels.

When: April 1, 2025 – June 30, 2025Enforcement: Informal — resolved cooperativelyVerify on EPA.gov

TIER 3Resolved

Missed required monitoring deadline

This is a paperwork/process violation — it does not mean a contaminant was detected at unsafe levels.

When: October 2, 2024 – November 21, 2024Rule: Total Coliform RuleEnforcement: Resolving — corrective action underway

TIER 3Unresolved

Failed to issue ongoing public notification

This is a paperwork/process violation — it does not mean a contaminant was detected at unsafe levels.

When: October 1, 2024Rule: Ground Water RuleEnforcement: Informal — resolved cooperativelyVerify on EPA.gov

TIER 3Unresolved

Failed to conduct Level 1 Assessment

This is a paperwork/process violation — it does not mean a contaminant was detected at unsafe levels.

When: September 7, 2024Rule: Consumer Confidence RuleEnforcement: Informal — resolved cooperativelyVerify on EPA.gov

TIER 3Unresolved

Failed to conduct Level 1 Assessment

This is a paperwork/process violation — it does not mean a contaminant was detected at unsafe levels.

When: September 5, 2024Rule: Consumer Confidence RuleEnforcement: Informal — resolved cooperativelyVerify on EPA.gov

TIER 2Resolved

Maximum contaminant level violation

When: August 30, 2024 – November 21, 2024Rule: Total Coliform RuleEnforcement: Resolving — corrective action underway

TIER 1 — URGENTResolved

Maximum Contaminant Level Violation

When: August 1, 2024 – August 31, 2024Rule: Total Coliform RuleEnforcement: Resolving — corrective action underway

TIER 3Resolved

Failed to conduct Level 1 Assessment

This is a paperwork/process violation — it does not mean a contaminant was detected at unsafe levels.

When: July 17, 2024 – August 20, 2025Rule: Consumer Confidence RuleEnforcement: Resolving — corrective action underway

TIER 3Resolved

Surface water treatment technique failure

When: July 1, 2024 – August 2, 2024Enforcement: Resolving — corrective action underway

TIER 3Resolved

Failed to conduct Level 1 Assessment

This is a paperwork/process violation — it does not mean a contaminant was detected at unsafe levels.

When: June 12, 2024 – August 20, 2025Rule: Consumer Confidence RuleEnforcement: Resolving — corrective action underway

TIER 3Resolved

Failed Level 2 Assessment under Revised Total Coliform Rule

This is a paperwork/process violation — it does not mean a contaminant was detected at unsafe levels.

When: April 1, 2024 – June 30, 2024Rule: Stage 1 DBPREnforcement: Resolving — corrective action underway

TIER 3Resolved

Monitoring violation

This is a paperwork/process violation — it does not mean a contaminant was detected at unsafe levels.

When: February 11, 2024 – February 26, 2024Rule: Total Coliform RuleEnforcement: Resolving — corrective action underway

TIER 3Resolved

Failed Level 2 Assessment under Revised Total Coliform Rule

This is a paperwork/process violation — it does not mean a contaminant was detected at unsafe levels.

When: January 1, 2024 – February 20, 2024Rule: Stage 1 DBPREnforcement: Resolving — corrective action underway

TIER 3Resolved

Monitoring Violation

This is a paperwork/process violation — it does not mean a contaminant was detected at unsafe levels.

When: January 1, 2024 – January 31, 2024Rule: Total Coliform RuleEnforcement: Resolving — corrective action underway

Understanding violation severity

Tier 1Urgent health risk. Utility must notify all customers within 24 hours.Tier 2Important health or treatment issue. Customers notified within 30 days.Tier 3Administrative or monitoring issue. Reported in the annual water quality report.

Source: EPA Safe Drinking Water Information System (SDWIS) · Updated quarterly

Frequently Asked Questions About MOUNT OLIVE TWP W D MAIN

Is MOUNT OLIVE TWP W D MAIN water safe to drink?

MOUNT OLIVE TWP W D MAIN water receives a grade of F (0/100), which is considered failing. 3 contaminant(s) exceed EPA legal limits and 233 violation(s) are on record. Customers may want to consider using a water filter.

What contaminants has MOUNT OLIVE TWP W D MAIN detected?

39 contaminants were tested in MOUNT OLIVE TWP W D MAIN's water. Notable contaminants include Copper (90th percentile), PFOA, PFOS. 3 exceed EPA legal limits (MCLs). 3 exceed EPA health goals (MCLGs).

Does MOUNT OLIVE TWP W D MAIN have any EPA violations?

Yes, MOUNT OLIVE TWP W D MAIN has 233 EPA violation(s) on record, with the most recent in 2025. Violation types include Other, MR, RPT. 7 are health-based violations.

How many people does MOUNT OLIVE TWP W D MAIN serve?

MOUNT OLIVE TWP W D MAIN serves approximately 7,887 people, New Jersey. The system provides water to 1 community: Mount Olive Twp.-1427.

What type of water does MOUNT OLIVE TWP W D MAIN provide?

MOUNT OLIVE TWP W D MAIN sources its water from groundwater. Groundwater is pumped from underground aquifers, which often provides natural filtration. The utility's system ID is NJ1427005.

How does MOUNT OLIVE TWP W D MAIN compare to other utilities in New Jersey?

MOUNT OLIVE TWP W D MAIN scores 0/100 with a grade of F (failing). This score suggests significant water quality concerns relative to other utilities. Visit our New Jersey state page for a full comparison of water systems.

Cities Served

Mount Olive Twp.-1427