F0/100

STILLWATER WATER DISTRICT 1 — Water Quality Report 2026

Serving 1,200 people · New Jersey

Water Source

Groundwater

County

—

System ID

NJ1920001

Violations

392

Contaminant Test Results

EPA Violation History

Violations (last 5yr)

Unresolved

Health-Related

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: 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

Monitoring / Reporting Violation

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

When: December 30, 2024Rule: 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: October 1, 2024 – December 31, 2024Enforcement: 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: October 1, 2024 – December 31, 2024Enforcement: 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: October 1, 2024 – December 31, 2024Enforcement: 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: October 1, 2024 – December 31, 2024Enforcement: 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: October 1, 2024 – December 31, 2024Enforcement: 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: October 1, 2024 – December 31, 2024Enforcement: 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: October 1, 2024 – December 31, 2024Enforcement: 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: October 1, 2024 – December 31, 2024Enforcement: 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: October 1, 2024 – December 31, 2024Enforcement: 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: October 1, 2024 – December 31, 2024Enforcement: 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: October 1, 2024 – December 31, 2024Enforcement: 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: October 1, 2024 – December 31, 2024Enforcement: 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: October 1, 2024 – December 31, 2024Enforcement: 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: October 1, 2024 – December 31, 2024Enforcement: 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: October 1, 2024 – December 31, 2024Enforcement: Informal — resolved cooperativelyVerify on EPA.gov

TIER 3Resolved

Surface water treatment technique failure

When: July 1, 2024 – July 26, 2024Enforcement: Resolving — corrective action underway

TIER 3Resolved

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, 2024 – September 30, 2024Enforcement: Resolving — corrective action underway

TIER 3Resolved

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, 2024 – September 30, 2024Enforcement: Resolving — corrective action underway

TIER 3Resolved

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, 2024 – September 30, 2024Enforcement: Resolving — corrective action underway

TIER 3Resolved

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, 2024 – September 30, 2024Enforcement: Resolving — corrective action underway

TIER 3Resolved

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, 2024 – September 30, 2024Enforcement: Resolving — corrective action underway

TIER 3Resolved

Violation related to Consumer Confidence Report

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

When: May 1, 2024 – May 31, 2024Rule: Consumer Confidence RuleEnforcement: Resolving — corrective action underway

TIER 3Resolved

Violation related to Consumer Confidence Report

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

When: November 1, 2023 – November 30, 2023Rule: Consumer Confidence RuleEnforcement: Resolving — corrective action underway

TIER 3Resolved

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, 2023 – September 30, 2023Enforcement: Resolving — corrective action underway

TIER 3Resolved

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, 2023 – September 30, 2023Enforcement: Resolving — corrective action underway

TIER 3Resolved

Violation related to Consumer Confidence Report

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

When: December 1, 2022 – December 31, 2022Rule: Consumer Confidence RuleEnforcement: Resolving — corrective action underway

TIER 3Resolved

Violation related to Consumer Confidence Report

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

When: October 1, 2022 – October 31, 2022Rule: Consumer Confidence RuleEnforcement: Resolving — corrective action underway

TIER 3Resolved

Violation related to Consumer Confidence Report

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

When: February 1, 2022 – February 28, 2022Rule: Consumer Confidence RuleEnforcement: Resolving — corrective action underway

TIER 3Resolved

Exceeded the MCL for disinfection byproducts

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

When: January 1, 2022 – December 31, 2022Enforcement: Resolving — corrective action underway

TIER 3Resolved

Exceeded the MCL for disinfection byproducts

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

When: January 1, 2022 – December 31, 2022Enforcement: Resolving — corrective action underway

TIER 2Resolved

Maximum contaminant level violation

When: December 13, 2021 – March 16, 2022Rule: 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: November 2, 2021 – November 1, 2023Rule: Consumer Confidence RuleEnforcement: Resolving — corrective action underway

TIER 3Resolved

Surface water treatment technique failure

When: October 1, 2021 – November 22, 2021Enforcement: Resolving — corrective action underway

TIER 3Resolved

Surface water treatment technique failure

When: July 1, 2021 – November 22, 2021Enforcement: Resolving — corrective action underway

TIER 3Resolved

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, 2021 – September 30, 2021Enforcement: Resolving — corrective action underway

TIER 3Resolved

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, 2021 – September 30, 2021Enforcement: Resolving — corrective action underway

TIER 3Resolved

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, 2021 – September 30, 2021Enforcement: Resolving — corrective action underway

TIER 3Resolved

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, 2021 – September 30, 2021Enforcement: Resolving — corrective action underway

TIER 3Resolved

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, 2021 – September 30, 2021Enforcement: Resolving — corrective action underway

TIER 3Resolved

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, 2021 – September 30, 2021Enforcement: Resolving — corrective action underway

TIER 3Resolved

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, 2021 – September 30, 2021Enforcement: Resolving — corrective action underway

TIER 3Resolved

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, 2021 – September 30, 2021Enforcement: Resolving — corrective action underway

TIER 3Resolved

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, 2021 – September 30, 2021Enforcement: Resolving — corrective action underway

TIER 3Resolved

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, 2021 – September 30, 2021Enforcement: 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 STILLWATER WATER DISTRICT 1

Is STILLWATER WATER DISTRICT 1 water safe to drink?

STILLWATER WATER DISTRICT 1 water receives a grade of F (0/100), which is considered failing. 0 contaminant(s) exceed EPA legal limits and 392 violation(s) are on record. Customers may want to consider using a water filter.

What contaminants has STILLWATER WATER DISTRICT 1 detected?

1 contaminants were tested in STILLWATER WATER DISTRICT 1's water. No contaminants exceed EPA legal limits or health goals, indicating good water quality management.

Does STILLWATER WATER DISTRICT 1 have any EPA violations?

Yes, STILLWATER WATER DISTRICT 1 has 392 EPA violation(s) on record, with the most recent in 2025. Violation types include MR, Other, TT. 13 are health-based violations.

How many people does STILLWATER WATER DISTRICT 1 serve?

STILLWATER WATER DISTRICT 1 serves approximately 1,200 people, New Jersey. The system provides water to 1 community: Stillwater Twp.-1920.

What type of water does STILLWATER WATER DISTRICT 1 provide?

STILLWATER WATER DISTRICT 1 sources its water from groundwater. Groundwater is pumped from underground aquifers, which often provides natural filtration. The utility's system ID is NJ1920001.

How does STILLWATER WATER DISTRICT 1 compare to other utilities in New Jersey?

STILLWATER WATER DISTRICT 1 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

Stillwater Twp.-1920