County · Louisiana
Calcasieu Parish, Louisiana: drinking water records
Explore EPA records for 43 community water systems across 14 ZIP codes in Calcasieu Parish, then find water-testing resources and available recent monitoring-station readings.
Data as of EPA UCMR 5 final release, August 2026 (file dated Aug 28, 2026) · EPA SDWIS 2026Q2 (file dated Jul 9, 2026). How we build these pages
Drinking-water records
EPA survey and compliance records are historical reports. UCMR 5 results are available for 13 of the 43 listed systems in this snapshot. A system with no reported PFAS detection is not a test of every tap or every contaminant.
System population figures are summed from EPA registry records and can overlap where wholesalers and retail systems serve the same people. They are not a Census county-population estimate.
Water systems in this county
All 43 active community systems in the available county records, sorted by record completeness. Scroll the table to explore more systems.
| Water system | People served | PFAS survey results | PFAS found | Health-based violations | Lead, 9 in 10 homes at or below |
|---|---|---|---|---|---|
| Sulphur City of Water System LA1019044 | 24,489 | 120 | 0 | 1 | 2 ppbbelow the action level |
| Houston River Waterworks District 11 LA1019119 | 6,915 | 60 | 0 | 1 | 2 ppbbelow the action level |
| Calcasieu Parish Ww District No 4 LA1019053 | 5,340 | 60 | 0 | 7 | 2 ppbbelow the action level |
| Westlake City of Water System LA1019054 | 4,858 | 180 | 0 | 4 | 1 ppbbelow the action level |
| City of Lake Charles Water System LA1019029 | 79,500 | 360 | 0 | 0 | 0.8 ppbbelow the action level |
| Calcasieu Parish Ww District No 1 LA1019051 | 20,837 | 120 | 0 | 0 | 2 ppbbelow the action level |
| Calcasieu Parish Ww Dist 9 Carlyss LA1019116 | 14,502 | 60 | 0 | 0 | 0 ppbbelow the action level |
| Calcasieu Parish Ww District 8 LA1019118 | 6,834 | 120 | 0 | 0 | 4 ppbbelow the action level |
| Lawco - Dequincy Water System LA1019008 | 5,370 | 120 | 0 | 0 | 0.6 ppbbelow the action level |
| Calcasieu Parish Ww District No 5 LA1019084 | 5,088 | 60 | 0 | 0 | 4 ppbbelow the action level |
| Calcasieu Parish Ww District 7 LA1019114 | 4,791 | 60 | 0 | 0 | 0 ppbbelow the action level |
| Town of Vinton Water System LA1019048 | 4,101 | 60 | 0 | 0 | 3 ppbbelow the action level |
| Town of Iowa Water System LA1019026 | 3,636 | 60 | 0 | 0 | 0 ppbbelow the action level |
| Gulf Stream Manor Water System LA1019123 | 1,368 | 0 | 0 | 15 | 0 ppbbelow the action level |
| Fairview Mobile Estates North Ws LA1019080 | 669 | 0 | 0 | 2 | 0 ppbbelow the action level |
| Smith Mobile Home Village Water System LA1019085 | 444 | 0 | 0 | 1 | 0.2 ppbbelow the action level |
| Fairview Mobile Estates South Ws LA1019096 | 378 | 0 | 0 | 1 | 1.7 ppbbelow the action level |
| Magnolia-Utility Service of Lake Charles LA1019024 | 306 | 0 | 0 | 4 | 1 ppbbelow the action level |
| Magnolia-Brigas Estates LA1019001 | 294 | 0 | 0 | 4 | 1 ppbbelow the action level |
| Sugarcane Townes Water System LA1019131 | 288 | 0 | 0 | 1 | 1.2 ppbbelow the action level |
| Pharos Mobile Home Community South LA1019115 | 222 | 0 | 0 | 4 | 0 ppbbelow the action level |
| Pharos Mobile Home Community North LA1019101 | 162 | 0 | 0 | 9 | 0 ppbbelow the action level |
| C K B Trailer Park Water System LA1019059 | 150 | 0 | 0 | 1 | 0 ppbbelow the action level |
| Clearview Mobile Home Park LA1019122 | 141 | 0 | 0 | 1 | 2 ppbbelow the action level |
| Calcasieu Ww #14 Ward 5 LA1019042 | 3,150 | 0 | 0 | 0 | 0 ppbbelow the action level |
| Calcasieu Parish Ww 12 Ward 3 LA1019126 | 2,130 | 0 | 0 | 0 | 0 ppbbelow the action level |
| Quail Ridge Estates Water System LA1019105 | 1,119 | 0 | 0 | 0 | 0 ppbbelow the action level |
| Waterworks Dist. No. 10 of Ward 7 LA1019128 | 942 | 0 | 0 | 0 | 0 ppbbelow the action level |
| Country Pines North Subdivision Ws LA1019083 | 936 | 0 | 0 | 0 | 0 ppbbelow the action level |
| Magnolia-Lake Street LA1019091 | 651 | 0 | 0 | 0 | 0 ppbbelow the action level |
| Mossville Ww District No 2 LA1019052 | 618 | 0 | 0 | 0 | 0 ppbbelow the action level |
| Country Pines South Subdivision Ws LA1019129 | 570 | 0 | 0 | 0 | 0 ppbbelow the action level |
| The Charleston MHC Water System LA1019039 | 567 | 0 | 0 | 0 | 0 ppbbelow the action level |
| Garden Heights Water System LA1019018 | 465 | 0 | 0 | 0 | 0 ppbbelow the action level |
| The Sallier MHC Water System LA1019028 | 400 | 0 | 0 | 0 | 0 ppbbelow the action level |
| Oak Meadows Subdivision Water System LA1019076 | 318 | 0 | 0 | 0 | 0 ppbbelow the action level |
| Oak Pine Mobile Home Park Water System LA1019112 | 240 | 0 | 0 | 0 | 0 ppbbelow the action level |
| The Reserve MHC Water System LA1019109 | 159 | 0 | 0 | 0 | 0.4 ppbbelow the action level |
| South Calcasieu Estates Subdivision W S LA1019098 | 144 | 0 | 0 | 0 | 0 ppbbelow the action level |
| East Park Subdivision Water System LA1019079 | 102 | 0 | 0 | 0 | 1 ppbbelow the action level |
| Corbina Trailer Park Water System LA1019124 | 69 | 0 | 0 | 0 | 1 ppbbelow the action level |
| K & P Mh & RV Park Water System LA1019127 | 66 | 0 | 0 | 0 | 0.6 ppbbelow the action level |
| Country Living Trailer Park Water System LA1019102 | 51 | 0 | 0 | 0 | 0 ppbbelow the action level |
USGS · Monitoring stations
The water, more recently.
Available station readings in Calcasieu Parish, Louisiana. Each measurement keeps its time, unit and original source.
These readings describe water at a monitoring station. They do not test your tap, measure PFAS or lead, or determine whether water is safe to drink or swim in.
Recent observations load when this section comes into view.
How these readings update
We check for updates every 10 minutes while this section is visible and show supported observations from the last 48 hours. The time beside a reading is when USGS measured it; the checked time is when our service retrieved the response. We mark a reading more than 6 hours old as older. Provisional observations can change after USGS review. A missing reading does not mean zero or clean water.
Temperature, pH, dissolved oxygen, turbidity, conductivity, streamflow and water level are shown only where a station reports them. Different measurements have different units and sampling intervals. USGS data and documentation.
Your next step
Water testing, reports & local help.
Use these official directories to find your drinking-water agency, a certified laboratory and public water records. We have not yet added an individually reviewed local resource list for this county.
Official national directories
Water testing
Find your state’s private-well program
EPA’s state directory points well owners to local program information. Services and eligibility vary by state and county.
Water testing
Find a certified drinking-water laboratory
Use EPA’s directory to reach your state’s laboratory certification program. EPA does not provide on-request testing of residential drinking water.
Public records
Find your utility’s Consumer Confidence Report
EPA links to community water-system reports and explains how to read them. Look for your actual supplier rather than assuming every address in a county shares one system.
Public records
Explore USGS water observations
Find current and historical observations from USGS monitoring locations, including available stream, lake, and groundwater data. Measurements vary by station and do not replace a test of your household water.
A county overview cannot identify every property’s water provider. If you use a public water system, confirm its name on your bill and request its annual Consumer Confidence Report. Private wells need their own testing; public-system records do not describe a private well.
Understand water testing and laboratory reportsResource descriptions are compiled by Tap Water Lookup. Review dates describe our source check, not a new water sample. How we review sources · Suggest a correction
Explore your area
Local coverage in Calcasieu Parish
14ZIP areas in this overview
Explore the water-system records, recent station readings and testing resources on this county page. They describe the systems and stations identified in each section; they are not a separate water test for every community.
Towns and communities
- Carlyss
- DeQuincy
- Hayes
- Iowa
- Lake Charles
- Moss Bluff
- Starks
- Sulphur
- Vinton
- Westlake
View ZIP areas and understand coverage
- 70601Lake Charles
- 70605Lake Charles
- 70609Lake Charles
- 70611Moss Bluff
- 70615Lake Charles
- 70629Lake Charles
- 70633DeQuincy
- 70646Hayes
- 70647Iowa
- 70661Starks
- 70663Sulphur
- 70665Carlyss
- 70668Vinton
- 70669Westlake
These Census ZIP Code Tabulation Areas are grouped here by their largest county overlap. A ZIP area can cross county lines and contain several water suppliers or private wells. Place labels reflect Census geography, not verified postal city names or utility service boundaries.
Records for these areas are currently presented in this county overview rather than individual ZIP reports. An unpublished report does not mean there are no water records. Confirm your supplier on your water bill; if you use a private well, testing your own well is the relevant next step.
Sources and scope
EPA UCMR 5 occurrence data, samples collected 2023-01-03 – 2026-06-17, final release, August 2026 (file dated Aug 28, 2026); EPA SDWIS via ECHO, 2026Q2 extract (file dated Jul 9, 2026); EPA service-area boundaries v3.0; Census 2020 ZCTAs. Database prepared 2026-09-03.
Counts cover the systems that report this county to EPA. A water system may cross county lines. "Found" means at least one result at or above the laboratory reporting level; it is not a compliance finding.
Compiled by Tap Water Lookup from the sources identified on this page. Read the methodology and review process.
