Onancock, Town of
EPA ID: VA3001620 · 1,525 people served · 2 ZIP codes
ZipCheckup's reading of EPA records for Onancock, Town of (VA3001620): 3 violations on record since 2021. Every entry among the 3 violations in EPA records for Onancock, Town of has a resolved status in the data; this utility delivers water to about 1,525 people.
Data: EPA SDWIS
Service Area Map
Coverage area for Onancock, Town of Source: EPA SDWIS service area boundaries.
Service area boundary
Demographics of ZIP Codes Served
The ZIP codes associated with Onancock, Town of have a median household income of $52,306 and about 4,102 residents live in those ZIP codes (Census; not the number of people this system supplies). Approximately 58% of housing stock was built before 1986, which increases the likelihood of lead service lines and older plumbing.
Environmental Justice Note: On average, 63% of census tracts in the counties mapped to this service area are designated disadvantaged by the federal Climate and Economic Justice Screening Tool (CEJST, 2022 version). Communities with higher disadvantaged populations often face disproportionate environmental and health burdens, including aging water infrastructure and limited resources for remediation.
💧 Where Does Your Water Come From?
Onancock, Town of's water is classified in EPA records as a groundwater source. 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.
Infrastructure Risk
Comparable Water Systems
Similar-sized systems in Virginia
System Overview
Onancock, Town of (EPA ID: VA3001620) is a community water system in Virginia that serves approximately 1,525 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: 3 resolved, 0 archived, 0 addressed, and 0 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 1, 2025 | Revised Total Coliform Rule | Non-health-based | Resolved |
| September 1, 2023 | Revised Total Coliform Rule | Non-health-based | Resolved |
| June 1, 2023 | Revised Total Coliform Rule | Non-health-based | Resolved |
Contaminants Detected
The following contaminants have been flagged in EPA records for this water system:
| Contaminant | Category | Violations | Health-Based |
|---|---|---|---|
| Revised Total Coliform Rule | Monitoring & Reporting | 3 | No |
Lead & Copper
EPA Lead and Copper Rule evidence attributed directly to this water system:
| Lead Level | Exceeds Action Level | Sample Date |
|---|---|---|
| 0.005 mg/L | No | 2023-12-31 |
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
2 of 2 ZIP records with known zones are in EPA Radon Zone 3.
The EPA recommends testing all homes regardless of radon zone. County radon zones cannot replace an in-home radon test.
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 VA 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 available EPA compliance records for Onancock, Town of (VA3001620) on EPA.gov.
Frequently Asked Questions
Is Onancock, Town of water safe to drink?
The accepted 2026Q2 ECHO snapshot shows no current noncompliance for Onancock, Town of; its 3 accepted 2021-2026 records are resolved or archived. Historical compliance status does not establish conditions at a specific tap.
How many people does Onancock, Town of serve?
Onancock, Town of serves approximately 1,525 people across 2 ZIP codes in Virginia.
Where does Onancock, Town of get its water?
The primary water source is groundwater.
Frequently Asked Questions
How to cite this page
ZipCheckup. (n.d.). Onancock, Town of (VA): 3 EPA Violations. https://zipcheckup.com/water-system/va3001620/
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author = {{ZipCheckup}},
title = {{Onancock, Town of (VA): 3 EPA Violations}},
year = {n.d.},
url = {https://zipcheckup.com/water-system/va3001620/}
}
What You Can Do
Test your water
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Check your specific ZIP code
Water quality can vary within a system. View nearest ZIP report →
Contact your utility
Onancock, Town of (EPA ID: VA3001620) - request the latest Consumer Confidence Report or ask about specific contaminants.