Duncannon Muni Water
EPA ID: PA7500019 · 2,000 people served · 1 ZIP code
In the most recent EPA reporting cycle, Duncannon Muni Water carried 6 violations still marked as unresolved — each remains active in the federal enforcement ledger while the utility continues operations for its service population of approximately 2,000 people across the area it supplies.
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 3 (2021) to 4 (2022). The pattern suggests growing compliance challenges.
Service Area Map
Coverage area for Duncannon Muni Water Source: EPA SDWIS service area boundaries.
Service area boundary — Grade F
Service Area Demographics
The Duncannon Muni Water serves a community with a median household income of $75,307 and an estimated 8,625 residents across its service area. Approximately 65% of housing stock was built before 1986, which increases the likelihood of lead service lines and older plumbing.
💧 Where Does Your Water Come From?
Duncannon Muni Water'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 Perry County, Pennsylvania 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 Duncannon Muni Water compares to EPA limits
What This Means For You
Atrazine at 1 mg/L exceeds the EPA maximum of 0.003 mg/L. Endocrine disruption, cardiovascular & reproductive effects. Consider granular activated carbon (GAC) filtration.
Haloacetic Acids (HAA5) at 2 mg/L exceeds the EPA maximum of 0.06 mg/L. Cancer risk; reproductive & developmental effects. Consider granular activated carbon (GAC) filtration.
Contaminant 0700 at 6 mg/L exceeds the EPA maximum of mg/L.
Lead and Copper Rule at 4 mg/L exceeds the EPA maximum of mg/L.
Contaminant 2959 at 2 mg/L exceeds the EPA maximum of mg/L.
Atrazine was detected in this water system. granular 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
Duncannon Muni Water (EPA ID: PA7500019) is a community water system in Pennsylvania that serves approximately 2,000 people from groundwater sources.
This system serves ZIP code 17020 in Duncannon.
Average Home Safety Score: F (26/100)
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 |
|---|---|---|---|
| August 1, 2025 | Consumer Confidence Report Rule | Monitoring | Unresolved |
| May 1, 2025 | Contaminant 0700 | Monitoring | Resolved |
| March 1, 2025 | Contaminant 0700 | Monitoring | Unresolved |
| July 1, 2024 | Haloacetic Acids (HAA5) | Monitoring | Unresolved |
| January 1, 2024 | Contaminant 2959 | Monitoring | Resolved |
| February 1, 2023 | Contaminant 0700 | Monitoring | Resolved |
| January 1, 2023 | Contaminant 2959 | Monitoring | Resolved |
Contaminants Detected
The following contaminants have been flagged in EPA records for this water system:
| Contaminant | Category | Violations | Health-Based |
|---|---|---|---|
| Contaminant 0700 | Other Violation | 6 | Yes |
| Lead and Copper Rule | Treatment Failure | 4 | No |
| Barium | Inorganic | 3 | Yes |
| Haloacetic Acids (HAA5) | Disinfection Byproducts | 2 | No |
| Contaminant 2959 | Other Violation | 2 | No |
| Copper | Inorganic | 1 | No |
| Atrazine | Organic | 1 | No |
| Combined Radium | Radionuclides | 1 | No |
| Consumer Confidence Report Rule | Reporting 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 |
|---|---|---|---|
| 17020 | 0.301 mg/L | Yes | N/A |
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 PA or modeled from parcel and building-footprint data.
- 17020 — Duncannon
Data Sources
This report uses public data from the EPA Safe Drinking Water Information System (SDWIS). View the full compliance record for Duncannon Muni Water (PA7500019) on EPA.gov.
Frequently Asked Questions
Is Duncannon Muni Water water safe to drink?
Duncannon Muni Water has recorded 4 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 Duncannon Muni Water serve?
Duncannon Muni Water serves approximately 2,000 people across 1 ZIP code in Pennsylvania.
Where does Duncannon Muni Water get its water?
The primary water source is groundwater.
PFAS Substances Detected in This System
This water system's Consumer Confidence Report disclosed the following PFAS compounds. Levels are from the utility's most recent reporting cycle.
In April 2024, EPA finalized the first National Primary Drinking Water Regulation for six PFAS. Public water systems have until 2029 to comply. EPA — PFAS regulation overview →
Source: Consumer Confidence Report disclosed by Duncannon Muni Water.
ZipCheckup is not affiliated with this water utility. PFAS detection data is sourced from public Consumer Confidence Reports filed by the utility itself.
Lead Service Line Inventory
Service line breakdown reported under the federal Lead and Copper Rule Improvements (LCRI) inventory requirement:
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
Duncannon Muni Water (EPA ID: PA7500019) — request the latest Consumer Confidence Report or ask about specific contaminants.