North West Pump District
EPA ID: DE00A0347 · 4,149 people served · 1 ZIP code
ZipCheckup's reading of EPA records for North West Pump District (DE00A0347): no drinking-water violations recorded since 2021. Water monitoring history at North West Pump District, as reported to the EPA, contains no recorded violations; 4,149 residents are counted in its service population.
Data: EPA SDWIS
Service Area Map
Coverage area for North West Pump District Source: EPA SDWIS service area boundaries.
Service area boundary
Demographics of ZIP Codes Served
The ZIP codes associated with North West Pump District have a median household income of $129,971 and about 50,542 residents live in those ZIP codes (Census; not the number of people this system supplies).
💧 Where Does Your Water Come From?
North West Pump District'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 90th 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 Delaware
System Overview
North West Pump District (EPA ID: DE00A0347) is a community water system in Delaware that serves approximately 4,149 people from groundwater sources.
This system serves ZIP code 19709 in Middletown.
Violation History
Lead & Copper
EPA Lead and Copper Rule evidence attributed directly to this water system:
| Lead Level | Exceeds Action Level | Sample Date |
|---|---|---|
| 0.0008 mg/L | No | 2025-12-31 |
No copper action-level exceedance record appears for this PWSID in the accepted LCR snapshot. This does not establish a clean copper measurement.
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: Ask your water utility whether running cold water for 2 minutes is enough to flush your plumbing before drinking.
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 DE or modeled from parcel and building-footprint data.
- 19709 - Middletown
Data Sources
This report uses public data from the EPA Safe Drinking Water Information System (SDWIS). View available EPA compliance records for North West Pump District (DE00A0347) on EPA.gov.
Frequently Asked Questions
Is North West Pump District water safe to drink?
The accepted 2026Q2 ECHO snapshot contains zero violation records for North West Pump District 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 North West Pump District serve?
North West Pump District serves approximately 4,149 people across 1 ZIP code in Delaware.
Where does North West Pump District get its water?
The primary water source is groundwater.
Federal UCMR5 PFAS Monitoring: No PFAS Reported Above Reporting Levels
This water system was tested under the federal EPA Unregulated Contaminant Monitoring Rule (UCMR5). No PFAS compounds were reported above UCMR5 minimum reporting levels.
EPA's April 2024 PFAS rule sets MCLs of 4 ppt for PFOA and PFOS and 10 ppt for PFHxS, PFNA and HFPO-DA (GenX); water systems must comply from 2029. Other PFAS compounds have no individual federal MCL. A state standard is shown only where this system's state has its own enforceable PFAS limit. Detection results are EPA UCMR5 samples, not a measurement at your tap.
Source: U.S. EPA UCMR5 (Unregulated Contaminant Monitoring Rule, 5th cycle) — per-system federal sampling, 2023–2025. EPA UCMR5 monitoring program →
Frequently Asked Questions
How to cite this page
ZipCheckup. (n.d.). North West Pump District Water Quality Report, DE. https://zipcheckup.com/water-system/de00a0347/
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