Marana Dwid - Derringer
EPA ID: AZ0410139 · 1,950 people served · 2 ZIP codes
Zero violations in five consecutive years of EPA monitoring — Marana Dwid - Derringer has held a clean track record across every reporting cycle in that span, with no enforcement activity of any kind on file for the full service population of 1,950 residents.
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 2 (2021) to 3 (2024). The pattern suggests growing compliance challenges.
Service Area Map
Coverage area for Marana Dwid - Derringer Source: EPA SDWIS service area boundaries.
Service area boundary
Service Area Demographics
The Marana Dwid - Derringer serves a community with a median household income of $97,258 and an estimated 39,051 residents across its service area.
Environmental Justice Note: 39% of the population in this service area is classified as disadvantaged under EPA's EJScreen criteria. 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?
Marana Dwid - Derringer'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 Pima County, Arizona rely on private wells rather than public water systems. Private well owners are responsible for their own water testing and treatment.
Infrastructure Risk
PFAS Detected in Service Area
PFAS ("forever chemicals") have been detected in water serving this system's area. 13 detections recorded. 6 exceed federal EPA limits (4 ppt for PFOA/PFOS). 2 exceed state limits.
Comparable Water Systems
Similar-sized systems in Arizona
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
Marana Dwid - Derringer (EPA ID: AZ0410139) is a community water system in Arizona that serves approximately 1,950 people from groundwater sources.
This system provides water to 2 ZIP codes across 1 community.
Violation History
Lead & Copper
No Lead and Copper Rule sampling data available for this water system.
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: 1 ZIP code confirmed via EPA Community Water System Service Area Boundaries v3 plus 1 additional ZIP inferred from SDWIS registry data. The EPA-confirmed set is the most reliable; SDWIS-inferred entries may be narrower than the real deployment area.
Data Sources
This report uses public data from the EPA Safe Drinking Water Information System (SDWIS). View the full compliance record for Marana Dwid - Derringer (AZ0410139) on EPA.gov.
Frequently Asked Questions
Is Marana Dwid - Derringer water safe to drink?
Based on EPA records, Marana Dwid - Derringer has no recorded violations in the past 5 years — a positive indicator of water quality management.
How many people does Marana Dwid - Derringer serve?
Marana Dwid - Derringer serves approximately 1,950 people across 2 ZIP codes in Arizona.
Where does Marana Dwid - Derringer get its water?
The primary water source is groundwater.