Ray County Pwsd 3
EPA ID: MO1024512 · 1,970 people served · 9 ZIP codes
EPA data: Ray County Pwsd 3 — zero violations, five years, 1,970 served.
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 1 (2021) to 7 (2025). The pattern suggests growing compliance challenges.
Service Area Map
Coverage area for Ray County Pwsd 3 Source: EPA SDWIS service area boundaries.
Service area boundary — Grade B
Service Area Demographics
The Ray County Pwsd 3 serves a community with a median household income of $65,525 and an estimated 37,166 residents across its service area. Approximately 65% of housing stock was built before 1986, which increases the likelihood of lead service lines and older plumbing.
Environmental Justice Note: 37% 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?
Ray County Pwsd 3'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 Ray County, Missouri 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. 2 detections recorded.
Comparable Water Systems
Similar-sized systems in Missouri
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
Ray County Pwsd 3 (EPA ID: MO1024512) is a community water system in Missouri that serves approximately 1,970 people from groundwater sources.
This system provides water to 9 ZIP codes across 9 communities.
Average Home Safety Score: B (83/100)
Based on water quality violations, lead levels, and radon risk across all ZIP codes served by this system.
Violation History
Lead & Copper
EPA Lead and Copper Rule sampling data for ZIP codes served by this system:
| ZIP Code | Lead Level | Exceeds Limit | Sample Date |
|---|---|---|---|
| 64671 | 0.00197 mg/L | No | N/A |
Radon Risk in Service Area
Dominant radon zone for ZIP codes served by this system: Zone 2 (Moderate Risk)
The EPA recommends testing homes in Zone 1 and Zone 2 areas for radon.
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 MO or modeled from parcel and building-footprint data.
- 64035 — Hardin
- 64062 — Lawson
- 64084 — Rayville
- 64085 — Richmond
- 64429 — Cameron
- 64465 — Lathrop
- 64624 — Braymer
- 64650 — Kingston
- 64671 — Polo
Data Sources
This report uses public data from the EPA Safe Drinking Water Information System (SDWIS). View the full compliance record for Ray County Pwsd 3 (MO1024512) on EPA.gov.
Frequently Asked Questions
Is Ray County Pwsd 3 water safe to drink?
Based on EPA records, Ray County Pwsd 3 has no recorded violations in the past 5 years — a positive indicator of water quality management.
How many people does Ray County Pwsd 3 serve?
Ray County Pwsd 3 serves approximately 1,970 people across 9 ZIP codes in Missouri.
Where does Ray County Pwsd 3 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.