Sparta Twp Water Utility - Lake Mohawk
EPA ID: NJ1918004 · 17,625 people served · 2 ZIP codes
ZipCheckup's reading of EPA SDWIS for Sparta Twp Water Utility - Lake Mohawk (NJ1918004): 1 unresolved EPA violation on record. The EPA enforcement database lists 1 active violation for Sparta Twp Water Utility - Lake Mohawk - a provider that delivers drinking water to approximately 17,625 people and has not yet formally resolved those findings.
Data: EPA SDWIS
Service Area Map
Coverage area for Sparta Twp Water Utility - Lake Mohawk Source: EPA SDWIS service area boundaries.
Service area boundary
Service Area Demographics
The Sparta Twp Water Utility - Lake Mohawk serves a community with a median household income of $156,272 and an estimated 30,203 residents across its service area. Approximately 72% of housing stock was built before 1986, which increases the likelihood of lead service lines and older plumbing.
💧 Where Does Your Water Come From?
Sparta Twp Water Utility - Lake Mohawk'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 Sparta Twp Water Utility - Lake Mohawk compares to EPA limits
What This Means For You
Stage 1 DBP Rule at 5 mg/L exceeds the EPA maximum of mg/L.
Surface Water Treatment Rule at 4 mg/L exceeds the EPA maximum of mg/L.
Consumer Confidence Report Rule at 2 mg/L exceeds the EPA maximum of mg/L.
Total Coliform at 1 presence exceeds the EPA maximum of presence.
PFAS Detected in Service Area
PFAS ("forever chemicals") have been detected in water serving this system's area. 7 detections recorded. 2 exceed federal EPA limits (4 ppt for PFOA/PFOS).
Comparable Water Systems
Similar-sized systems in New Jersey
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
Sparta Twp Water Utility - Lake Mohawk (EPA ID: NJ1918004) is a community water system in New Jersey that serves approximately 17,625 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: 10 resolved, 1 archived, 0 addressed, and 1 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 |
|---|---|---|---|
| July 1, 2025 | Stage 1 DBP Rule | Non-health-based | Archived |
| October 11, 2023 | Consumer Confidence Report Rule | Non-health-based | Resolved |
| October 1, 2023 | Surface Water Treatment Rule | Non-health-based | Resolved |
| September 1, 2023 | Consumer Confidence Report Rule | Non-health-based | Resolved |
| July 14, 2023 | Stage 1 DBP Rule | Health-based | Unaddressed (current) |
| July 1, 2023 | Surface Water Treatment Rule | Non-health-based | Resolved |
| October 1, 2022 | Surface Water Treatment Rule | Non-health-based | Resolved |
| September 29, 2022 | Stage 1 DBP Rule | Non-health-based | Resolved |
| July 1, 2022 | Surface Water Treatment Rule | Non-health-based | Resolved |
| May 13, 2021 | Total Coliform | Non-health-based | Resolved |
| January 1, 2021 | Stage 1 DBP Rule | Health-based | Resolved |
| January 1, 2021 | Stage 1 DBP Rule | Health-based | Resolved |
Contaminants Detected
The following contaminants have been flagged in EPA records for this water system:
| Contaminant | Category | Violations | Health-Based |
|---|---|---|---|
| Stage 1 DBP Rule | Treatment Failure | 5 | Yes |
| Surface Water Treatment Rule | Treatment Failure | 4 | No |
| Consumer Confidence Report Rule | Reporting Failure | 2 | No |
| Total Coliform | Microbiological | 1 | No |
Lead & Copper
EPA Lead and Copper Rule evidence attributed directly to this water system:
| Lead Level | Exceeds Action Level | Sample Date |
|---|---|---|
| 0.00104 mg/L | No | N/A |
The accepted LCR snapshot contains 1 reported copper action-level exceedance record for this PWSID. The source does not provide a verified copper level for publication.
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 Sparta Twp Water Utility - Lake Mohawk (NJ1918004) on EPA.gov.
Frequently Asked Questions
Is Sparta Twp Water Utility - Lake Mohawk water safe to drink?
The accepted 2026Q2 ECHO snapshot shows 1 current health-based noncompliance record for Sparta Twp Water Utility - Lake Mohawk. Review the utility's current notices and EPA record. This system-level compliance history cannot determine conditions at a specific tap.
How many people does Sparta Twp Water Utility - Lake Mohawk serve?
Sparta Twp Water Utility - Lake Mohawk serves approximately 17,625 people across 2 ZIP codes in New Jersey.
Where does Sparta Twp Water Utility - Lake Mohawk get its water?
The primary water source is groundwater.
Federal UCMR5 PFAS Monitoring: Detected
This water system was tested under the federal EPA Unregulated Contaminant Monitoring Rule (UCMR5). PFAS compounds were detected below the current state-enforceable MCL.
Current MCL reflects the lowest state-enforceable limit (NYS 10 ppt for PFOA/PFOS, effective August 2020). The federal final MCL of 4 ppt for PFOA/PFOS (EPA April 2024 rule) is not enforceable until April 2029. Detections above 4 ppt but below 10 ppt are below current MCL but above the future federal limit.
Source: U.S. EPA UCMR5 (Unregulated Contaminant Monitoring Rule, 5th cycle) — per-system federal sampling, 2023–2025. EPA UCMR5 monitoring program →
How Water Systems Appear in Rankings
Water systems are evaluated by violation history, contaminant detections, and service population. Larger systems with more service connections appear in more rankings.
Frequently Asked Questions
How to cite this page
ZipCheckup. (n.d.). Sparta Twp Water Utility - Lake Mohawk: 3 Health Violations. https://zipcheckup.com/water-system/nj1918004/
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title = {{Sparta Twp Water Utility - Lake Mohawk: 3 Health Violations}},
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url = {https://zipcheckup.com/water-system/nj1918004/}
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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
Sparta Twp Water Utility - Lake Mohawk (EPA ID: NJ1918004) - request the latest Consumer Confidence Report or ask about specific contaminants.