Stillwater Water District 1
EPA ID: NJ1920001 · 1,200 people served · 2 ZIP codes
ZipCheckup's reading of EPA SDWIS for Stillwater Water District 1 (NJ1920001): 2 unresolved EPA violations on record. Tallying the federal enforcement file for Stillwater Water District 1 yield 2 open violations that have not been formally closed - each finding sits in the EPA database while the utility continues to deliver water to approximately 1,200 residents and works through the required corrective action process.
Data: EPA SDWIS
Service Area Map
Coverage area for Stillwater Water District 1 Source: EPA SDWIS service area boundaries.
Service area boundary
Service Area Demographics
The Stillwater Water District 1 serves a community with a median household income of $113,734 and an estimated 35,792 residents across its service area. Approximately 71% of housing stock was built before 1986, which increases the likelihood of lead service lines and older plumbing.
💧 Where Does Your Water Come From?
Stillwater Water District 1's water is pumped from underground aquifers. Groundwater is naturally filtered through rock and soil, but it can be vulnerable to PFAS contamination, nitrates from agriculture, and industrial chemicals that seep into the water table.
Superfund Proximity Note: This service area ranks in the 70th percentile nationally for proximity to Superfund (NPL) sites. Groundwater sources near contaminated sites may face elevated risk from industrial chemicals.
Infrastructure Risk
Detected Contaminants
How Stillwater Water District 1 compares to EPA limits
What This Means For You
PFOA at 1 mg/L exceeds the EPA maximum of 0.000004 mg/L.
PFNA at 1 mg/L exceeds the EPA maximum of 0.00001 mg/L.
Mercury at 5 mg/L exceeds the EPA maximum of 0.002 mg/L. Kidney damage, neurological impairment. Consider activated carbon (GAC) filtration.
Cadmium at 5 mg/L exceeds the EPA maximum of 0.005 mg/L. Kidney damage accumulating over lifetime; probable carcinogen. Consider reverse osmosis filtration.
Chlorodibromomethane at 1 mg/L exceeds the EPA maximum of 0.002 mg/L. Liver cancer, brain cancer (known carcinogen). Consider granular activated carbon (GAC) filtration.
Mercury was detected in this water system. activated carbon (GAC) filtration can reduce exposure.
Find a certified water filter →Comparable Water Systems
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Estimated Remediation Costs
Average estimated costs across ZIP codes served by this system
Based on national averages for common remediation projects. Actual costs vary by property. Only issues flagged by EPA, FEMA, or state data for each ZIP code are included.
System Overview
Stillwater Water District 1 (EPA ID: NJ1920001) is a community water system in New Jersey that serves approximately 1,200 people from groundwater sources.
This system provides water to 2 ZIP codes across 2 communities.
Violation History
Status breakdown for accepted records with record years 2021-2026: 61 resolved, 83 archived, 0 addressed, and 2 unaddressed. Under this source contract, current noncompliance is the sum of addressed and unaddressed records. Archived and resolved records are excluded from current noncompliance.
Recent Violations
| Date | Contaminant | Type | Status |
|---|---|---|---|
| February 8, 2026 | Consumer Confidence Report Rule | Non-health-based | Unaddressed (current) |
| December 11, 2025 | Total Coliform | Non-health-based | Resolved |
| December 11, 2025 | Total Coliform | Non-health-based | Resolved |
| December 11, 2025 | Total Coliform | Non-health-based | Resolved |
| December 11, 2025 | Total Coliform | Non-health-based | Resolved |
| December 11, 2025 | Total Coliform | Non-health-based | Resolved |
| July 1, 2025 | Contaminant 2931 | Non-health-based | Resolved |
| July 1, 2025 | Contaminant 2946 | Non-health-based | Resolved |
| July 1, 2025 | Contaminant 2931 | Non-health-based | Resolved |
| July 1, 2025 | Contaminant 2946 | Non-health-based | Resolved |
| July 1, 2025 | Contaminant 2931 | Non-health-based | Resolved |
| July 1, 2025 | Contaminant 2946 | Non-health-based | Resolved |
| July 1, 2025 | Contaminant 2931 | Non-health-based | Resolved |
| July 1, 2025 | Contaminant 2946 | Non-health-based | Resolved |
| July 1, 2025 | Contaminant 2931 | Non-health-based | Resolved |
| July 1, 2025 | Contaminant 2946 | Non-health-based | Resolved |
| January 1, 2025 | Lead | Non-health-based | Archived |
| January 1, 2025 | Lead | Non-health-based | Archived |
| December 30, 2024 | Stage 1 DBP Rule | Non-health-based | Unaddressed (current) |
| October 1, 2024 | Gross Alpha | Non-health-based | Resolved |
Contaminants Detected
The following contaminants have been flagged in EPA records for this water system:
| Contaminant | Category | Violations | Health-Based |
|---|---|---|---|
| Contaminant 2931 | Other Violation | 16 | No |
| Contaminant 2946 | Other Violation | 16 | No |
| Lead | Inorganic | 6 | No |
| Total Coliform | Microbiological | 6 | No |
| Barium | Inorganic | 5 | No |
| Cadmium | Inorganic | 5 | No |
| Chromium | Inorganic | 5 | No |
| Fluoride | Inorganic | 5 | No |
| Selenium | Inorganic | 5 | No |
| Nickel | Inorganic | 5 | No |
| Nitrite | Inorganic | 5 | No |
| Contaminant 1036 | Other Violation | 5 | No |
| Contaminant 1045 | Other Violation | 5 | No |
| Mercury | Inorganic | 5 | No |
| Contaminant 1075 | Other Violation | 5 | No |
Lead & Copper
EPA Lead and Copper Rule evidence attributed directly to this water system:
| Lead Level | Exceeds Action Level | Sample Date |
|---|---|---|
| 0 mg/L | No | N/A |
No copper action-level exceedance record appears for this PWSID in the accepted LCR snapshot. This does not establish a clean copper measurement.
Radon Risk in Service Area
Dominant radon zone for ZIP codes served by this system: Zone 1 (High Risk)
The EPA recommends testing homes in Zone 1 and Zone 2 areas for radon.
Need help with your water quality?
Typical cost: Water test: typically $20–$50 (DIY kit) · Professional inspection: $150–$400
Find the Right Water FilterFree tip: Let cold water run for 2 minutes before drinking — this helps flush lead from your pipes.
ZIP Codes Served
Coverage: Service area ZIP codes sourced from EPA Community Water System Service Area Boundaries v3 (March 2026 release). These ZIPs reflect the actual deployment footprint recorded by NJ or modeled from parcel and building-footprint data.
Data Sources
This report uses public data from the EPA Safe Drinking Water Information System (SDWIS). View the full compliance record for Stillwater Water District 1 (NJ1920001) on EPA.gov.
Frequently Asked Questions
Is Stillwater Water District 1 water safe to drink?
The accepted 2026Q2 ECHO snapshot shows 2 current noncompliance records and zero current records classified as health-based. That classification is not a property-specific water test or safety guarantee.
How many people does Stillwater Water District 1 serve?
Stillwater Water District 1 serves approximately 1,200 people across 2 ZIP codes in New Jersey.
Where does Stillwater Water District 1 get its water?
The primary water source is groundwater.
Frequently Asked Questions
How to cite this page
ZipCheckup. (n.d.). Stillwater Water District 1 (NJ): 1 Health Violation. https://zipcheckup.com/water-system/nj1920001/
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author = {{ZipCheckup}},
title = {{Stillwater Water District 1 (NJ): 1 Health Violation}},
year = {n.d.},
url = {https://zipcheckup.com/water-system/nj1920001/}
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What You Can Do
Test your water
Home test kits can detect lead, bacteria, and other contaminants at your tap. Find the right filter →
Check your specific ZIP code
Water quality can vary within a system. View nearest ZIP report →
Contact your utility
Stillwater Water District 1 (EPA ID: NJ1920001) - request the latest Consumer Confidence Report or ask about specific contaminants.