City of Ponca
EPA ID: NE3105106 · 894 people served · 1 ZIP code
Tallying the federal enforcement file for City of Ponca yields 12 open violations that have not been formally closed — each finding sits in the EPA database while the utility continues to deliver water to approximately 894 residents and works through the required corrective action process.
Data: EPA SDWIS Last verified: 2026-04-02
Compliance Trajectory
Stable · Risk tier: High · 95% chance of violation in next 12 months
Violations went from 3 (2021) to 4 (2023). Violation counts have remained relatively steady.
Service Area Map
Coverage area for City of Ponca Source: EPA SDWIS service area boundaries.
Service area boundary — Grade D
Service Area Demographics
The City of Ponca serves a community with a median household income of $66,250 and an estimated 1,387 residents across its service area. Approximately 79% of housing stock was built before 1986, which increases the likelihood of lead service lines and older plumbing.
💧 Where Does Your Water Come From?
City of Ponca'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 Dixon County, Nebraska 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 City of Ponca compares to EPA limits
What This Means For You
Combined Radium at 12 pCi/L exceeds the EPA maximum of 5 pCi/L.
Comparable Water Systems
Similar-sized systems in Nebraska
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
City of Ponca, (EPA ID: NE3105106) is a community water system in Nebraska that serves approximately 894 people from groundwater sources.
This system serves ZIP code 68770 in Ponca.
Average Home Safety Score: D (45/100)
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 |
|---|---|---|---|
| October 1, 2023 | Combined Radium | Health-based | Unresolved |
| July 1, 2023 | Combined Radium | Health-based | Unresolved |
| April 1, 2023 | Combined Radium | Health-based | Unresolved |
| January 1, 2023 | Combined Radium | Health-based | Unresolved |
Contaminants Detected
The following contaminants have been flagged in EPA records for this water system:
| Contaminant | Category | Violations | Health-Based |
|---|---|---|---|
| Combined Radium | Radionuclides | 12 | Yes |
Lead & Copper
EPA Lead and Copper Rule sampling data for ZIP codes served by this system:
| ZIP Code | Lead Level | Exceeds Limit | Sample Date |
|---|---|---|---|
| 68770 | 0.0035 mg/L | No | 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
- 68770 — Ponca
Data Sources
This report uses public data from the EPA Safe Drinking Water Information System (SDWIS). View the full compliance record for City of Ponca (NE3105106) on EPA.gov.
Frequently Asked Questions
Is City of Ponca water safe to drink?
City of Ponca has recorded 12 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 City of Ponca serve?
City of Ponca serves approximately 894 people across 1 ZIP code in Nebraska.
Where does City of Ponca 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:
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
City of Ponca (EPA ID: NE3105106) — request the latest Consumer Confidence Report or ask about specific contaminants.