West Winn Water System Inc.
EPA ID: LA1127011 · 2,064 people served · 2 ZIP codes
Even though West Winn Water System Inc. accumulated 1 violation over five years, all have been formally resolved — the provider currently meets EPA standards for 2,064 people.
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 13 (2024) to 17 (2025). The pattern suggests growing compliance challenges.
Service Area Map
Coverage area for West Winn Water System Inc. Source: EPA SDWIS service area boundaries.
Service area boundary — Grade A
Service Area Demographics
The West Winn Water System Inc. serves a community with a median household income of $48,871 and an estimated 10,096 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: 75% 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?
West Winn Water System Inc.'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 Winn Parish, Louisiana rely on private wells rather than public water systems. Private well owners are responsible for their own water testing and treatment.
Superfund Proximity Note: This service area ranks in the 80th percentile nationally for proximity to Superfund (NPL) sites. Groundwater sources near contaminated sites may face elevated risk from industrial chemicals.
Infrastructure Risk
Detected Contaminants
How West Winn Water System Inc. compares to EPA limits
What This Means For You
Contaminant 0700 at 1 mg/L exceeds the EPA maximum of mg/L.
Comparable Water Systems
Similar-sized systems in Louisiana
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
West Winn Water System Inc. (EPA ID: LA1127011) is a community water system in Louisiana that serves approximately 2,064 people from groundwater sources.
This system provides water to 2 ZIP codes across 2 communities.
Average Home Safety Score: A (89/100)
Based on water quality violations, lead levels, and radon risk across all ZIP codes served by this system.
Violation History
Contaminants Detected
The following contaminants have been flagged in EPA records for this water system:
| Contaminant | Category | Violations | Health-Based |
|---|---|---|---|
| Contaminant 0700 | Other Violation | 1 | Yes |
Lead & Copper
EPA Lead and Copper Rule sampling data for ZIP codes served by this system:
| ZIP Code | Lead Level | Exceeds Limit | Sample Date |
|---|---|---|---|
| 71031 | 0.004 mg/L | No | N/A |
Radon Risk in Service Area
Dominant radon zone for ZIP codes served by this system: Zone 3 (Low Risk)
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 LA or modeled from parcel and building-footprint data.
Data Sources
This report uses public data from the EPA Safe Drinking Water Information System (SDWIS). View the full compliance record for West Winn Water System Inc. (LA1127011) on EPA.gov.
Frequently Asked Questions
Is West Winn Water System Inc. water safe to drink?
West Winn Water System Inc. has recorded 1 health-based violation 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 West Winn Water System Inc. serve?
West Winn Water System Inc. serves approximately 2,064 people across 2 ZIP codes in Louisiana.
Where does West Winn Water System Inc. get its water?
The primary water source is groundwater.
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 West Winn Water System Inc 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: West Winn Water System Inc Consumer Confidence Report.
ZipCheckup is not affiliated with this water utility. Treatment and source data are sourced from the utility's published CCR filings.
Treatment regime
How this utility classifies its treatment process and what each reported treatment chemical does.
Treatment chemicals and what each one does
Chemical names are reported verbatim by the utility. Purpose categories are ZipCheckup annotations based on standard drinking-water treatment practice.
Watershed exposure sources reported
Land-use and natural conditions identified in the utility's source-water assessment as potential contamination sources upstream of treatment.
Treatment classification and chemical list sourced from West Winn Water System Inc Consumer Confidence Report.
Treatment intensity is a ZipCheckup-derived classification based on the chemicals and processes the utility reports. Chemicals and contamination sources are taken verbatim from the utility's CCR filing. Routine federal monitoring and contaminant testing shown elsewhere on this page determine whether the water meets safety standards, not the treatment classification.
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.
Aesthetic water quality
These measurements describe the look, taste, and feel of the water this utility delivers. They are not contaminant violations — they sit alongside federal Secondary Maximum Contaminant Levels (SMCLs) which the EPA publishes as non-enforceable guidance.
Aesthetic measurements from West Winn Water System Inc Consumer Confidence Report.
Aesthetic measurements are reported by the utility from its annual sampling. EPA Secondary MCLs are advisory thresholds — values outside them indicate aesthetic concerns such as taste or appearance, not health violations. Federal contaminant testing is shown in the sections above.
Notable events and violations
This section summarizes events the utility chose to disclose in its most recent Consumer Confidence Report, plus any federal compliance violations the utility recorded against itself. Both lists are utility-authored — ZipCheckup does not audit, judge, or reorder them.
Federal compliance violations on record
These entries are taken verbatim from the utility's CCR violations section. EPA defines four broad violation categories: Maximum Contaminant Level (MCL), Treatment Technique (TT), Monitoring & Reporting (M&R), and Public Notification (PN).
-
MCL, LRAA · TTHM12/31/2023 - 3/30/2024
Total trihalomethanes exceeded the maximum contaminant level
-
MCL, LRAA · TOTAL HALOACETIC ACIDS (HAA5)12/31/2023 - 3/30/2024
Haloacetic acids exceeded the maximum contaminant level
-
MCL, LRAA · TTHM3/31/2024 - 6/29/2024
Total trihalomethanes exceeded the maximum contaminant level
-
MCL, LRAA · TOTAL HALOACETIC ACIDS (HAA5)3/31/2024 - 6/29/2024
Haloacetic acids exceeded the maximum contaminant level
-
MCL, LRAA · TTHM6/30/2024 - 9/29/2024
Total trihalomethanes exceeded the maximum contaminant level
-
MCL, LRAA · TOTAL HALOACETIC ACIDS (HAA5)6/30/2024 - 9/29/2024
Haloacetic acids exceeded the maximum contaminant level
-
CCR REPORT · CONSUMER CONFIDENCE RULE6/30/2024 - 5/21/2024
Failure to distribute Consumer Confidence Report on time
-
MCL, LRAA · TTHM9/30/2024 - 12/30/2024
Total trihalomethanes exceeded the maximum contaminant level
-
MCL, LRAA · TOTAL HALOACETIC ACIDS (HAA5)9/30/2024 - 12/30/2024
Haloacetic acids exceeded the maximum contaminant level
Violations record from West Winn Water System Inc Consumer Confidence Report.
Notable events from the utility's CCR
These bullet entries are the utility's own narration of operational, regulatory, or infrastructure events during the reporting period.
- HAA5 LRAA 125-133 ppb — more than double the MCL of 60 ppb across all four quarters
- TTHM LRAA 117-138 ppb — far exceeding MCL of 80 ppb across all four quarters
ZipCheckup note: items above reflect what the utility published in its most recent CCR. Federal violation records are also tracked separately by the EPA Safe Drinking Water Information System (SDWIS) — the SDWIS record is the authoritative federal source for any specific regulatory action.
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
West Winn Water System Inc. (EPA ID: LA1127011) — request the latest Consumer Confidence Report or ask about specific contaminants.