Calcasieu Parish Ww District No 4
EPA ID: LA1019053 · 5,340 people served · 4 ZIP codes
ZipCheckup's reading of EPA SDWIS for Calcasieu Parish Ww District No 4 (LA1019053): 7 unresolved EPA violations on record. 7 open EPA findings remain on record at Calcasieu Parish Ww District No 4 - the utility supplies approximately 5,340 people.
Data: EPA SDWIS
Service Area Map
Coverage area for Calcasieu Parish Ww District No 4 Source: EPA SDWIS service area boundaries.
Service area boundary
Service Area Demographics
The Calcasieu Parish Ww District No 4 serves a community with a median household income of $70,293 and an estimated 59,763 residents across its service area. Approximately 49% of housing stock was built before 1986, which increases the likelihood of lead service lines and older plumbing.
Environmental Justice Note: 45% 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?
Calcasieu Parish Ww District No 4'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.
Superfund Proximity Note: This service area ranks in the 70th 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 Calcasieu Parish Ww District No 4 compares to EPA limits
What This Means For You
Contaminant 0700 at 6 mg/L exceeds the EPA maximum of mg/L.
Stage 2 DBP Rule at 2 mg/L exceeds the EPA maximum of mg/L.
Lead and Copper Rule 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
Calcasieu Parish Ww District No 4 (EPA ID: LA1019053) is a community water system in Louisiana that serves approximately 5,340 people from groundwater sources.
This system provides water to 4 ZIP codes across 3 communities.
Violation History
Status breakdown for accepted records with record years 2021-2026: 2 resolved, 0 archived, 0 addressed, and 7 unaddressed. Under this source contract, current noncompliance is the sum of addressed and unaddressed records. Archived and resolved records are excluded from current noncompliance.
Recent Violations
| Date | Contaminant | Type | Status |
|---|---|---|---|
| October 28, 2025 | Contaminant 0700 | Health-based | Unaddressed (current) |
| October 28, 2025 | Contaminant 0700 | Health-based | Unaddressed (current) |
| October 28, 2025 | Contaminant 0700 | Health-based | Unaddressed (current) |
| October 28, 2025 | Contaminant 0700 | Health-based | Unaddressed (current) |
| October 28, 2025 | Contaminant 0700 | Health-based | Unaddressed (current) |
| October 17, 2024 | Stage 2 DBP Rule | Non-health-based | Unaddressed (current) |
| October 17, 2024 | Stage 2 DBP Rule | Health-based | Unaddressed (current) |
| August 11, 2023 | Lead and Copper Rule | Non-health-based | Resolved |
| July 3, 2023 | Contaminant 0700 | Health-based | Resolved |
Contaminants Detected
The following contaminants have been flagged in EPA records for this water system:
| Contaminant | Category | Violations | Health-Based |
|---|---|---|---|
| Contaminant 0700 | Other Violation | 6 | Yes |
| Stage 2 DBP Rule | Treatment Failure | 2 | Yes |
| Lead and Copper Rule | Treatment Failure | 1 | No |
Lead & Copper
EPA Lead and Copper Rule evidence attributed directly to this water system:
| Lead Level | Exceeds Action Level | Sample Date |
|---|---|---|
| 0.002 mg/L | No | N/A |
No copper action-level exceedance record appears for this PWSID in the accepted LCR snapshot. This does not establish a clean copper measurement.
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 Calcasieu Parish Ww District No 4 (LA1019053) on EPA.gov.
Frequently Asked Questions
Is Calcasieu Parish Ww District No 4 water safe to drink?
The accepted 2026Q2 ECHO snapshot shows 6 current health-based noncompliance records for Calcasieu Parish Ww District No 4. Review the utility's current notices and EPA record. This system-level compliance history cannot determine conditions at a specific tap.
How many people does Calcasieu Parish Ww District No 4 serve?
Calcasieu Parish Ww District No 4 serves approximately 5,340 people across 4 ZIP codes in Louisiana.
Where does Calcasieu Parish Ww District No 4 get its water?
The primary water source is groundwater.
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 →
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.
- #87 / 100 Most Unresolved Health Violations (U.S.)
- #10 / 32 Most Unresolved Health Violations (Louisiana)
- #21 / 50 Highest Exposure Burden (Louisiana)
Frequently Asked Questions
How to cite this page
ZipCheckup. (n.d.). Calcasieu Parish Ww District No 4 (LA): 7 Health Violations. https://zipcheckup.com/water-system/la1019053/
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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
Calcasieu Parish Ww District No 4 (EPA ID: LA1019053) - request the latest Consumer Confidence Report or ask about specific contaminants.