Sunset Ridge Water District
EPA ID: NY5905657 · 625 people served · 1 ZIP code
Not yet resolved: 24 EPA violations at Sunset Ridge Water District, affecting about 625 residents.
Data: EPA SDWIS Last verified: 2026-04-02
Compliance Trajectory
Worsening · Risk tier: High · 95% chance of violation in next 12 months
Violations went from 6 (2024) to 9 (2025). The pattern suggests growing compliance challenges.
Service Area Map
Coverage area for Sunset Ridge Water District Source: EPA SDWIS service area boundaries.
Service area boundary — Grade C
Service Area Demographics
The Sunset Ridge Water District serves a community with a median household income of $180,455 and an estimated 4,914 residents across its service area. Approximately 83% of housing stock was built before 1986, which increases the likelihood of lead service lines and older plumbing.
💧 Where Does Your Water Come From?
Sunset Ridge Water District'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.
About 1% of homes in Westchester County, New York rely on private wells rather than public water systems. Private well owners are responsible for their own water testing and treatment.
Infrastructure Risk
Detected Contaminants
How Sunset Ridge Water District compares to EPA limits
What This Means For You
Chloroform at 13 mg/L exceeds the EPA maximum of 0.08 mg/L.
Total Trihalomethanes (TTHM) at 3 mg/L exceeds the EPA maximum of 0.08 mg/L. Bladder & rectal cancer risk; reproductive concerns. Consider granular activated carbon (GAC) filtration.
Contaminant 1017 at 11 mg/L exceeds the EPA maximum of mg/L.
Consumer Confidence Report Rule at 2 mg/L exceeds the EPA maximum of mg/L.
Contaminant 2049 at 1 mg/L exceeds the EPA maximum of mg/L.
PFAS Detected in Service Area
PFAS ("forever chemicals") have been detected in water serving this system's area. 8 detections recorded. 3 exceed federal EPA limits (4 ppt for PFOA/PFOS). 1 exceeds state limits.
Total Trihalomethanes (TTHM) was detected in this water system. granular activated carbon (GAC) filtration can reduce exposure.
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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
Sunset Ridge Water District (EPA ID: NY5905657) is a community water system in New York that serves approximately 625 people from groundwater sources.
This system serves ZIP code 10560 in North Salem.
Average Home Safety Score: C (65/100)
Based on water quality violations, lead levels, and radon risk across all ZIP codes served by this system.
Violation History
Recent Violations
| Date | Contaminant | Type | Status |
|---|---|---|---|
| July 1, 2025 | Chloroform | Health-based | Unresolved |
| April 1, 2025 | Chloroform | Health-based | Unresolved |
| January 1, 2025 | Chloroform | Health-based | Unresolved |
| October 1, 2024 | Chloroform | Health-based | Unresolved |
| July 1, 2024 | Chloroform | Health-based | Unresolved |
| April 1, 2024 | Chloroform | Health-based | Unresolved |
| January 1, 2024 | Chloroform | Health-based | Unresolved |
| January 1, 2024 | Contaminant 1017 | Health-based | Unresolved |
| January 1, 2024 | Contaminant 2428 | Monitoring | Resolved |
| October 1, 2023 | Chloroform | Health-based | Unresolved |
| October 1, 2023 | Contaminant 1017 | Health-based | Unresolved |
| October 1, 2023 | Consumer Confidence Report Rule | Monitoring | Resolved |
| July 1, 2023 | Chloroform | Health-based | Unresolved |
| July 1, 2023 | Contaminant 1017 | Health-based | Unresolved |
| June 1, 2023 | Contaminant 1017 | Health-based | Unresolved |
| April 1, 2023 | Chloroform | Health-based | Unresolved |
| April 1, 2023 | Contaminant 1017 | Health-based | Unresolved |
| January 1, 2023 | Chloroform | Health-based | Unresolved |
| January 1, 2023 | Contaminant 1017 | Health-based | Unresolved |
| January 1, 2023 | Total Trihalomethanes (TTHM) | Monitoring | Resolved |
Contaminants Detected
The following contaminants have been flagged in EPA records for this water system:
| Contaminant | Category | Violations | Health-Based |
|---|---|---|---|
| Chloroform | Disinfection Byproducts | 13 | Yes |
| Contaminant 1017 | Other Violation | 11 | Yes |
| Total Trihalomethanes (TTHM) | Disinfection Byproducts | 3 | No |
| Consumer Confidence Report Rule | Reporting Failure | 2 | No |
| Contaminant 2049 | Other Violation | 1 | No |
| Contaminant 2428 | Other Violation | 1 | No |
| Stage 1 DBP Rule | Treatment Failure | 1 | No |
Lead & Copper
EPA Lead and Copper Rule sampling data for ZIP codes served by this system:
| ZIP Code | Lead Level | Exceeds Limit | Sample Date |
|---|---|---|---|
| 10560 | 0.00106 mg/L | No | N/A |
Radon Risk in Service Area
Dominant radon zone for ZIP codes served by this system: Zone 3 (Low Risk)
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 NY or modeled from parcel and building-footprint data.
- 10560 — North Salem
Data Sources
This report uses public data from the EPA Safe Drinking Water Information System (SDWIS). View the full compliance record for Sunset Ridge Water District (NY5905657) on EPA.gov.
Frequently Asked Questions
Is Sunset Ridge Water District water safe to drink?
Sunset Ridge Water District has recorded 20 health-based violations in the past 5 years. While the system is required to treat water to meet federal standards, you may want to consider additional precautions such as a certified water filter.
How many people does Sunset Ridge Water District serve?
Sunset Ridge Water District serves approximately 625 people across 1 ZIP code in New York.
Where does Sunset Ridge Water District get its water?
The primary water source is groundwater.
Lead Service Line Inventory
Service line breakdown reported under the federal Lead and Copper Rule Improvements (LCRI) inventory requirement:
This system reports zero confirmed lead service lines in its inventory. Unknown-material counts may still warrant verification.
Federal LCRI rule (effective October 2024) requires every public water system to inventory its service lines and complete lead-line replacement within 10 years.
Source: EPA SDWIS Federal Service Line Inventory (Phase 2) · Submitted 2026
ZipCheckup is not affiliated with the utility or state agency. Inventory figures render verbatim from the public LCRI submission cited above; ZipCheckup does not perform inspections or replacements.
Frequently Asked Questions
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
Sunset Ridge Water District (EPA ID: NY5905657) — request the latest Consumer Confidence Report or ask about specific contaminants.