Johnson Company Rwd 7
EPA ID: KS2009104 · 6,457 people served · 12 ZIP codes
EPA monitoring data for Johnson Company Rwd 7 shows an unblemished five-year compliance history — no violations of any kind have been recorded for this utility, which supplies water to approximately 6,457 people, covering every reporting cycle without a single MCL exceedance or monitoring lapse.
Data: EPA SDWIS Last verified: 2026-04-02
Compliance Trajectory
Stable · Risk tier: High · 95% chance of violation in next 12 months
Violations went from 1 (2021) to 4 (2024). Violation counts have remained relatively steady.
Service Area Map
Coverage area for Johnson Company Rwd 7 Source: EPA SDWIS service area boundaries.
Service area boundary
Service Area Demographics
The Johnson Company Rwd 7 serves a community with a median household income of $104,226 and an estimated 229,294 residents across its service area. Approximately 42% of housing stock was built before 1986, which increases the likelihood of lead service lines and older plumbing.
🌊 Where Does Your Water Come From?
Johnson Company Rwd 7'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 2% of homes in Miami 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. 18 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
Johnson Company Rwd 7 (EPA ID: KS2009104) is a community water system in Kansas that serves approximately 6,457 people from surface water sources.
This system provides water to 12 ZIP codes across 11 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: 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 KS or modeled from parcel and building-footprint data.
- 66013 — Bucyrus
- 66018 — De Soto
- 66021 — Edgerton
- 66025 — Eudora
- 66030 — Gardner
- 66031 — New Century
- 66053 — Louisburg
- 66061 — Olathe
- 66062 — Olathe
- 66071 — Paola
- 66083 — Spring Hill
- 66092 — Wellsville
Data Sources
This report uses public data from the EPA Safe Drinking Water Information System (SDWIS). View the full compliance record for Johnson Company Rwd 7 (KS2009104) on EPA.gov.
Frequently Asked Questions
Is Johnson Company Rwd 7 water safe to drink?
Based on EPA records, Johnson Company Rwd 7 has no recorded violations in the past 5 years — a positive indicator of water quality management.
How many people does Johnson Company Rwd 7 serve?
Johnson Company Rwd 7 serves approximately 6,457 people across 12 ZIP codes in Kansas.
Where does Johnson Company Rwd 7 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:
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.
How Water Systems Appear in Rankings
Water systems are evaluated by violation history, contaminant detections, and service population. Larger systems with more service connections appear in more rankings.