Hillcrest Water Users Assn
EPA ID: WA5333200 · 300 people served · 1 ZIP code
Even as other utilities in the region logged violations, Hillcrest Water Users Assn kept a clean EPA record — five years, no issues, 300 people served.
Data: EPA SDWIS Last verified: 2026-04-02
Service Area Map
Coverage area for Hillcrest Water Users Assn Source: EPA SDWIS service area boundaries.
Service area boundary
Service Area Demographics
The Hillcrest Water Users Assn serves a community with a median household income of $70,732 and an estimated 47,399 residents across its service area. Approximately 48% of housing stock was built before 1986, which increases the likelihood of lead service lines and older plumbing.
Environmental Justice Note: 63% 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?
Hillcrest Water Users Assn'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 Grant County, Washington 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. 5 detections recorded. 2 exceed federal EPA limits (4 ppt for PFOA/PFOS). 1 exceeds state limits.
Comparable Water Systems
Similar-sized systems in Washington
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
Hillcrest Water Users Assn (EPA ID: WA5333200) is a community water system in Washington that serves approximately 300 people from groundwater sources.
This system serves ZIP code 98837 in Moses Lake.
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: 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.
- 98837 — Moses Lake
Data Sources
This report uses public data from the EPA Safe Drinking Water Information System (SDWIS). View the full compliance record for Hillcrest Water Users Assn (WA5333200) on EPA.gov.
Frequently Asked Questions
Is Hillcrest Water Users Assn water safe to drink?
Based on EPA records, Hillcrest Water Users Assn has no recorded violations in the past 5 years — a positive indicator of water quality management.
How many people does Hillcrest Water Users Assn serve?
Hillcrest Water Users Assn serves approximately 300 people across 1 ZIP code in Washington.
Where does Hillcrest Water Users Assn get its water?
The primary water source is groundwater.
Lead Service Line Inventory
Service line breakdown reported under the federal Lead and Copper Rule Improvements (LCRI) inventory requirement:
This system reports zero confirmed lead service lines in its inventory. Unknown-material counts may still warrant verification.
Federal LCRI rule (effective October 2024) requires every public water system to inventory its service lines and complete lead-line replacement within 10 years.
Source: EPA SDWIS Federal Service Line Inventory (Phase 2) · Submitted 2026
ZipCheckup is not affiliated with the utility or state agency. Inventory figures render verbatim from the public LCRI submission cited above; ZipCheckup does not perform inspections or replacements.