Fall River Wud
EPA ID: SD4602201 · 1,057 people served · 5 ZIP codes
Unlike fully compliant utilities, Fall River Wud has 4 outstanding EPA violations for approximately 1,057 residents.
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 2 (2021) to 2 (2025). Violation counts have remained relatively steady.
Service Area Map
Coverage area for Fall River Wud Source: EPA SDWIS service area boundaries.
Service area boundary — Grade B
Service Area Demographics
The Fall River Wud serves a community with a median household income of $64,023 and an estimated 8,136 residents across its service area. Approximately 70% of housing stock was built before 1986, which increases the likelihood of lead service lines and older plumbing.
Environmental Justice Note: 50% 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?
Fall River Wud'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 4% of homes in Fall River County, South Dakota 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 Fall River Wud compares to EPA limits
What This Means For You
Consumer Confidence Report Rule at 7 mg/L exceeds the EPA maximum of mg/L.
Revised Total Coliform Rule at 6 presence exceeds the EPA maximum of presence.
Lead and Copper Rule at 2 mg/L exceeds the EPA maximum of mg/L.
Gross Alpha at 1 pCi/L exceeds the EPA maximum of pCi/L. Increased cancer risk from radioactive particles. Consider reverse osmosis filtration.
Contaminant 0700 at 1 mg/L exceeds the EPA maximum of mg/L.
Gross Alpha was detected in this water system. reverse osmosis 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
Fall River Wud (EPA ID: SD4602201) is a community water system in South Dakota that serves approximately 1,057 people from groundwater sources.
This system provides water to 5 ZIP codes across 5 communities.
Average Home Safety Score: B (73/100)
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 |
|---|---|---|---|
| July 1, 2025 | Gross Alpha | Health-based | Unresolved |
| March 2, 2025 | Lead and Copper Rule | Monitoring | Unresolved |
| June 1, 2024 | Consumer Confidence Report Rule | Monitoring | Resolved |
| May 1, 2024 | Consumer Confidence Report Rule | Monitoring | Resolved |
| April 1, 2024 | Consumer Confidence Report Rule | Monitoring | Resolved |
| April 1, 2024 | Revised Total Coliform Rule | Monitoring | Resolved |
| March 1, 2024 | Consumer Confidence Report Rule | Monitoring | Resolved |
| February 1, 2024 | Consumer Confidence Report Rule | Monitoring | Resolved |
| January 1, 2024 | Revised Total Coliform Rule | Monitoring | Resolved |
| October 1, 2023 | Revised Total Coliform Rule | Monitoring | Resolved |
| July 1, 2023 | Revised Total Coliform Rule | Monitoring | Unresolved |
| February 1, 2023 | Consumer Confidence Report Rule | Monitoring | Resolved |
| January 1, 2023 | Revised Total Coliform Rule | Monitoring | Resolved |
Contaminants Detected
The following contaminants have been flagged in EPA records for this water system:
| Contaminant | Category | Violations | Health-Based |
|---|---|---|---|
| Consumer Confidence Report Rule | Reporting Failure | 7 | Yes |
| Revised Total Coliform Rule | Microbiological | 6 | No |
| Lead and Copper Rule | Treatment Failure | 2 | No |
| Gross Alpha | Radionuclides | 1 | Yes |
| Contaminant 0700 | Other Violation | 1 | Yes |
Health Risk Details
Gross Alpha Particle Activity (EPA limit: pCi/L)
Increased cancer risk from radioactive particles At-risk groups: long-term residents in areas with uranium or radium-rich geology, people on private wells in western US.
Removal methods: reverse osmosis, ion exchange (anion exchange for radium), lime softening. Find the right filter →
Lead & Copper
EPA Lead and Copper Rule sampling data for ZIP codes served by this system:
| ZIP Code | Lead Level | Exceeds Limit | Sample Date |
|---|---|---|---|
| 57735 | 0.003 mg/L | No | N/A |
| 57763 | 0.002 mg/L | No | N/A |
| 57766 | 0.002 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: 4 ZIP codes confirmed via EPA Community Water System Service Area Boundaries v3 plus 1 additional ZIP inferred from SDWIS registry data. The EPA-confirmed set is the most reliable; SDWIS-inferred entries may be narrower than the real deployment area.
Data Sources
This report uses public data from the EPA Safe Drinking Water Information System (SDWIS). View the full compliance record for Fall River Wud (SD4602201) on EPA.gov.
Frequently Asked Questions
Is Fall River Wud water safe to drink?
Fall River Wud has recorded 3 health-based violations in the past 5 years. While the system is required to treat water to meet federal standards, you may want to consider additional precautions such as a certified water filter.
How many people does Fall River Wud serve?
Fall River Wud serves approximately 1,057 people across 5 ZIP codes in South Dakota.
Where does Fall River Wud 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.
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
Fall River Wud (EPA ID: SD4602201) — request the latest Consumer Confidence Report or ask about specific contaminants.