Shawnee Company Rwd 4c
EPA ID: KS2017718 · 12,000 people served · 32 ZIP codes
Federal monitoring records confirm Shawnee Company Rwd 4c has operated without any EPA violations for the full five-year window — covering every contaminant category and reporting cycle across a service area of approximately 12,000 residents, with no gaps in the compliance record.
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 233 (2024) to 97 (2025). The pattern suggests growing compliance challenges.
Service Area Map
Coverage area for Shawnee Company Rwd 4c Source: EPA SDWIS service area boundaries.
Service area boundary
Service Area Demographics
The Shawnee Company Rwd 4c serves a community with a median household income of $59,690 and an estimated 167,113 residents across its service area. Approximately 71% of housing stock was built before 1986, which increases the likelihood of lead service lines and older plumbing.
Environmental Justice Note: 36% 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?
Shawnee Company Rwd 4c's water is drawn from rivers, lakes, or reservoirs. Surface water sources are more exposed to agricultural runoff, stormwater, and upstream discharges, but they typically receive more intensive treatment before reaching your tap.
About 0% of homes in Jefferson County, Kansas 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. 21 detections recorded.
Comparable Water Systems
Similar-sized systems in Kansas
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
Shawnee Company Rwd 4c (EPA ID: KS2017718) is a community water system in Kansas that serves approximately 12,000 people from surface water sources.
This system provides water to 32 ZIP codes across 2 communities.
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: 4 ZIP codes confirmed via EPA Community Water System Service Area Boundaries v3 plus 28 additional ZIPs inferred from SDWIS registry data. The EPA-confirmed set is the most reliable; SDWIS-inferred entries may be narrower than the real deployment area.
This system serves 32 ZIP codes:
66512 · 66601 · 66603 · 66604 · 66605 66606 · 66607 · 66608 · 66609 · 66610 66611 · 66612 · 66614 · 66615 · 66616 66617 · 66618 · 66619 · 66620 · 66621 66622 · 66624 · 66625 · 66626 · 66628 66629 · 66636 · 66647 · 66667 · 66675 66683 · 66699
Data Sources
This report uses public data from the EPA Safe Drinking Water Information System (SDWIS). View the full compliance record for Shawnee Company Rwd 4c (KS2017718) on EPA.gov.
Frequently Asked Questions
Is Shawnee Company Rwd 4c water safe to drink?
Based on EPA records, Shawnee Company Rwd 4c has no recorded violations in the past 5 years — a positive indicator of water quality management.
How many people does Shawnee Company Rwd 4c serve?
Shawnee Company Rwd 4c serves approximately 12,000 people across 32 ZIP codes in Kansas.
Where does Shawnee Company Rwd 4c get its water?
The primary water source is surface water.
Federal UCMR5 PFAS Monitoring: Detected
This water system was tested under the federal EPA Unregulated Contaminant Monitoring Rule (UCMR5). PFAS compounds were detected below the current state-enforceable MCL.
Current MCL reflects the lowest state-enforceable limit (NYS 10 ppt for PFOA/PFOS, effective August 2020). The federal final MCL of 4 ppt for PFOA/PFOS (EPA April 2024 rule) is not enforceable until April 2029. Detections above 4 ppt but below 10 ppt are below current MCL but above the future federal limit.
Source: U.S. EPA UCMR5 (Unregulated Contaminant Monitoring Rule, 5th cycle) — per-system federal sampling, 2023–2025. EPA UCMR5 monitoring program →
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.