Rathbun Regional Water Assn (rathbun)
EPA ID: IA0400900 · 33,000 people served · 53 ZIP codes
Current EPA status: Rathbun Regional Water Assn (rathbun), 2 open violations, 33,000 people served.
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 1 (2023). Violation counts have remained relatively steady.
Service Area Map
Coverage area for Rathbun Regional Water Assn (rathbun) Source: EPA SDWIS service area boundaries.
Service area boundary — Grade C
Service Area Demographics
The Rathbun Regional Water Assn (rathbun) serves a community with a median household income of $63,046 and an estimated 119,061 residents across its service area. Approximately 73% of housing stock was built before 1986, which increases the likelihood of lead service lines and older plumbing.
Environmental Justice Note: 46% 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?
Rathbun Regional Water Assn (rathbun)'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 Wayne County, Iowa rely on private wells rather than public water systems. Private well owners are responsible for their own water testing and treatment.
Infrastructure Risk
Detected Contaminants
How Rathbun Regional Water Assn (rathbun) compares to EPA limits
What This Means For You
Total Trihalomethanes (TTHM) at 2 mg/L exceeds the EPA maximum of 0.08 mg/L. Bladder & rectal cancer risk; reproductive concerns. Consider granular activated carbon (GAC) filtration.
Haloacetic Acids (HAA5) at 1 mg/L exceeds the EPA maximum of 0.06 mg/L. Cancer risk; reproductive & developmental effects. Consider granular activated carbon (GAC) filtration.
Consumer Confidence Report Rule at 2 mg/L exceeds the EPA maximum of mg/L.
Stage 1 DBP Rule at 1 mg/L exceeds the EPA maximum of mg/L.
Lead and Copper Rule at 1 mg/L exceeds the EPA maximum of mg/L.
PFAS Detected in Service Area
PFAS ("forever chemicals") have been detected in water serving this system's area. 25 detections recorded.
Total Trihalomethanes (TTHM) was detected in this water system. granular activated carbon (GAC) filtration can reduce exposure.
Find a certified water filter →Comparable Water Systems
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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
Rathbun Regional Water Assn (rathbun) (EPA ID: IA0400900) is a community water system in Iowa that serves approximately 33,000 people from surface water sources.
This system provides water to 53 ZIP codes across 53 communities.
Average Home Safety Score: C (56/100)
Based on water quality violations, lead levels, and radon risk across all ZIP codes served by this system.
Violation History
Recent Violations
| Date | Contaminant | Type | Status |
|---|---|---|---|
| August 1, 2025 | Haloacetic Acids (HAA5) | Monitoring | Unresolved |
| August 1, 2025 | Consumer Confidence Report Rule | Monitoring | Resolved |
| July 1, 2025 | Total Trihalomethanes (TTHM) | Monitoring | Unresolved |
| January 24, 2025 | Stage 1 DBP Rule | Monitoring | Unresolved |
| November 1, 2024 | Consumer Confidence Report Rule | Monitoring | Resolved |
| October 1, 2024 | Copper | Monitoring | Unresolved |
| September 25, 2024 | Lead and Copper Rule | Monitoring | Unresolved |
| August 1, 2024 | Unknown | Monitoring | Unresolved |
| July 1, 2024 | Consumer Confidence Report Rule | Monitoring | Resolved |
| July 1, 2023 | Total Trihalomethanes (TTHM) | Monitoring | Resolved |
| June 1, 2023 | Consumer Confidence Report Rule | Monitoring | Resolved |
| April 1, 2023 | Haloacetic Acids (HAA5) | Monitoring | Resolved |
| February 1, 2023 | Consumer Confidence Report Rule | Monitoring | Resolved |
| January 1, 2023 | Consumer Confidence Report Rule | Monitoring | Resolved |
Contaminants Detected
The following contaminants have been flagged in EPA records for this water system:
| Contaminant | Category | Violations | Health-Based |
|---|---|---|---|
| Total Trihalomethanes (TTHM) | Disinfection Byproducts | 2 | No |
| Consumer Confidence Report Rule | Reporting Failure | 2 | No |
| Copper | Inorganic | 1 | No |
| Haloacetic Acids (HAA5) | Disinfection Byproducts | 1 | No |
| Stage 1 DBP Rule | Treatment Failure | 1 | No |
| Lead and Copper Rule | Treatment Failure | 1 | No |
Lead & Copper
EPA Lead and Copper Rule sampling data for ZIP codes served by this system:
| ZIP Code | Lead Level | Exceeds Limit | Sample Date |
|---|---|---|---|
| 50238 | 0.0045 mg/L | No | N/A |
| 52590 | 0.0034 mg/L | No | N/A |
| 52563 | 0.003 mg/L | No | N/A |
| 52536 | 0.0026 mg/L | No | N/A |
| 50150 | 0.0022 mg/L | No | N/A |
| 50139 | 0.002 mg/L | No | N/A |
| 52585 | 0.002 mg/L | No | N/A |
| 50008 | 0.0019 mg/L | No | N/A |
| 50060 | 0.0018 mg/L | No | N/A |
| 52537 | 0.0018 mg/L | No | N/A |
| 52630 | 0.0015 mg/L | No | N/A |
| 50044 | 0.0014 mg/L | No | N/A |
| 50062 | 0.0014 mg/L | No | N/A |
| 52567 | 0.0014 mg/L | No | N/A |
| 50123 | 0.0012 mg/L | No | N/A |
| 52544 | 0.001 mg/L | No | N/A |
| 52620 | 0.001 mg/L | No | N/A |
| 52651 | 0.001 mg/L | No | N/A |
| 52571 | 0.0009 mg/L | No | N/A |
| 52542 | 0.0008 mg/L | No | N/A |
Radon Risk in Service Area
Dominant radon zone for ZIP codes served by this system: Zone 1 (High 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 IA or modeled from parcel and building-footprint data.
This system serves 53 ZIP codes:
50008 · 50044 · 50049 · 50052 · 50060 50062 · 50068 · 50123 · 50138 · 50139 50144 · 50147 · 50150 · 50151 · 50238 52501 · 52531 · 52533 · 52535 · 52536 52537 · 52542 · 52544 · 52549 · 52551 52552 · 52553 · 52554 · 52555 · 52556 52560 · 52563 · 52565 · 52567 · 52569 52570 · 52571 · 52572 · 52573 · 52574 52580 · 52581 · 52583 · 52584 · 52585 52588 · 52590 · 52593 · 52594 · 52620 52626 · 52630 · 52651
Data Sources
This report uses public data from the EPA Safe Drinking Water Information System (SDWIS). View the full compliance record for Rathbun Regional Water Assn (rathbun) (IA0400900) on EPA.gov.
Frequently Asked Questions
Is Rathbun Regional Water Assn (rathbun) water safe to drink?
Rathbun Regional Water Assn (rathbun) has only monitoring/reporting violations, which are procedural in nature. The system meets federal health-based standards.
How many people does Rathbun Regional Water Assn (rathbun) serve?
Rathbun Regional Water Assn (rathbun) serves approximately 33,000 people across 53 ZIP codes in Iowa.
Where does Rathbun Regional Water Assn (rathbun) get its water?
The primary water source is surface water.
Contact Your Water Utility
Public-record contact information for the water utility serving this system. Use these channels to request water quality reports, ask about service, or report issues directly.
Contact information from RATHBUN REGIONAL WATER ASSN (RATHBUN) Consumer Confidence Report.
ZipCheckup is not affiliated with this water utility, does not act as its agent, and does not provide customer support for it. Contact details shown are public-record information from CCR filings. For service issues, contact the utility directly using the information above.
Water Source & Treatment
Where this water originates and how it's treated before reaching your tap.
Source: RATHBUN REGIONAL WATER ASSN (RATHBUN) Consumer Confidence Report.
ZipCheckup is not affiliated with this water utility. Treatment and source data are sourced from the utility's published CCR filings.
This water supply obtains water from one or more surface waters. Surface water sources are susceptible to sources of contamination within the drainage basin.
Federal UCMR5 PFAS Monitoring: Tested Clean
This water system was tested under the federal EPA Unregulated Contaminant Monitoring Rule (UCMR5). No PFAS compounds were detected.
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 →
PFAS Substances Detected in This System
This water system's Consumer Confidence Report disclosed the following PFAS compounds. Levels are from the utility's most recent reporting cycle.
In April 2024, EPA finalized the first National Primary Drinking Water Regulation for six PFAS. Public water systems have until 2029 to comply. EPA — PFAS regulation overview →
Source: Consumer Confidence Report disclosed by RATHBUN REGIONAL WATER ASSN (RATHBUN).
ZipCheckup is not affiliated with this water utility. PFAS detection data is sourced from public Consumer Confidence Reports filed by the utility itself.
Our water supply has completed a service line inventory. Please contact us for information regarding the inventory and how you can access the results.
Lead Service Line Replacement Tracker
This water utility's lead service line (LSL) replacement program is tracked from public Consumer Confidence Report filings. Email signup notifies subscribers when the utility files an updated replacement plan or progress milestone.
RATHBUN REGIONAL WATER ASSN (RATHBUN)
ZipCheckup is not affiliated with this water utility. LSL replacement-program data is sourced from public CCR filings published by the utility. Subscription notifications are based on automated parsing of subsequent CCR releases.
Learn more about Lead and Copper Rule replacement requirements →
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.
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.
Frequently Asked Questions
What You Can Do
Test your water
Home test kits can detect lead, bacteria, and other contaminants at your tap. Find the right filter →
Check your specific ZIP code
Water quality can vary within a system. View nearest ZIP report →
Contact your utility
Rathbun Regional Water Assn (rathbun) (EPA ID: IA0400900) — request the latest Consumer Confidence Report or ask about specific contaminants.