Town of Darlington
EPA ID: MD0120009 · 250 people served · 1 ZIP code
ZipCheckup's reading of EPA records for Town of Darlington (MD0120009): no drinking-water violations recorded since 2021. Town of Darlington is listed without violations in federal records, across a service area of 250 people.
Data: EPA SDWIS
Service Area Map
Coverage area for Town of Darlington Source: EPA SDWIS service area boundaries.
Service area boundary
Demographics of ZIP Codes Served
The ZIP codes associated with Town of Darlington have a median household income of $77,063 and about 2,802 residents live in those ZIP codes (Census; not the number of people this system supplies). Approximately 67% of housing stock was built before 1986, which increases the likelihood of lead service lines and older plumbing.
💧 Where Does Your Water Come From?
Town of Darlington'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.
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
Comparable Water Systems
Similar-sized systems in Maryland
System Overview
Town of Darlington (EPA ID: MD0120009) is a community water system in Maryland that serves approximately 250 people from groundwater sources.
This system serves ZIP code 21034 in Darlington.
Violation History
Lead & Copper
EPA Lead and Copper Rule evidence attributed directly to this water system:
| Lead Level | Exceeds Action Level | Sample Date |
|---|---|---|
| 0.0014 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
1 of 1 ZIP records with known zones is in EPA Radon Zone 1.
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 MD or modeled from parcel and building-footprint data.
- 21034 - Darlington
Data Sources
This report uses public data from the EPA Safe Drinking Water Information System (SDWIS). View available EPA compliance records for Town of Darlington (MD0120009) on EPA.gov.
Frequently Asked Questions
Is Town of Darlington water safe to drink?
The accepted 2026Q2 ECHO snapshot contains zero violation records for Town of Darlington in the inclusive 2021-2026 record-year window. This is a compliance-record finding, not a guarantee about water at a specific tap.
How many people does Town of Darlington serve?
Town of Darlington serves approximately 250 people across 1 ZIP code in Maryland.
Where does Town of Darlington get its water?
The primary water source is groundwater.
Frequently Asked Questions
How to cite this page
ZipCheckup. (n.d.). Town of Darlington Water Quality Report, MD. https://zipcheckup.com/water-system/md0120009/
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title = {{Town of Darlington Water Quality Report, MD}},
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url = {https://zipcheckup.com/water-system/md0120009/}
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