Marquez Mobile Home Park
EPA ID: WA5341640 · 120 people served · 1 ZIP code
ZipCheckup's reading of EPA records for Marquez Mobile Home Park (WA5341640): no drinking-water violations recorded since 2021. Violation-free in EPA records - Marquez Mobile Home Park, 120 residents served.
Data: EPA SDWIS
Service Area Map
Coverage area for Marquez Mobile Home Park Source: EPA SDWIS service area boundaries.
Service area boundary
Demographics of ZIP Codes Served
The ZIP codes associated with Marquez Mobile Home Park have a median household income of $60,167 and about 24,048 residents live in those ZIP codes (Census; not the number of people this system supplies). Approximately 70% of housing stock was built before 1986, which increases the likelihood of lead service lines and older plumbing.
Environmental Justice Note: On average, 56% 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?
Marquez Mobile Home Park'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 60th 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 Washington
System Overview
Marquez Mobile Home Park (EPA ID: WA5341640) is a community water system in Washington that serves approximately 120 people from groundwater sources.
This system serves ZIP code 98944 in Sunnyside.
Violation History
Lead & Copper
Latest reported 90th-percentile lead result for this PWSID: Below the reporting limit (1998-12-31).
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 WA or modeled from parcel and building-footprint data.
- 98944 - Sunnyside
Data Sources
This report uses public data from the EPA Safe Drinking Water Information System (SDWIS). View available EPA compliance records for Marquez Mobile Home Park (WA5341640) on EPA.gov.
Frequently Asked Questions
Is Marquez Mobile Home Park water safe to drink?
The accepted 2026Q2 ECHO snapshot contains zero violation records for Marquez Mobile Home Park 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 Marquez Mobile Home Park serve?
Marquez Mobile Home Park serves approximately 120 people across 1 ZIP code in Washington.
Where does Marquez Mobile Home Park get its water?
The primary water source is groundwater.
Frequently Asked Questions
How to cite this page
ZipCheckup. (n.d.). Marquez Mobile Home Park Water Quality Report, WA. https://zipcheckup.com/water-system/wa5341640/
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title = {{Marquez Mobile Home Park Water Quality Report, WA}},
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