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Counties → Louisiana

Calcasieu Parish County, Louisiana

Water Systems
80
Population Served
216,042
Total Violations
3,535
898 health-based
PFAS Detected
12
of 13 tested

Violation Analysis

90.0%
Systems with Violations
44.2
Avg Violations per System
25.4%
Health-Based Violations

Water Source Types

GW
50 systems (63%)

PFAS Contamination

13
Systems Tested
12
PFAS Detected
92.3%
Detection Rate

PFAS (per- and polyfluoroalkyl substances) are persistent chemicals found in drinking water. The EPA has set enforceable limits for several PFAS compounds under UCMR5 monitoring.

Compliance Snapshot

Calcasieu Parish Louisiana water systems by violation status, EPA SDWIS records.

No violations on record (2) One or more violations (48)

Violation history is cumulative, many flagged systems have already returned to compliance. Detail pages show per-system context.

Water Systems

System Name Population Violations PFAS
City of Lake Charles Water System 79,500 15 Clean
Sulphur City of Water System 24,489 71 Clean
Calcasieu Parish Ww District No 1 20,837 30 Clean
Calcasieu Parish Ww Dist 9 Carlyss 14,502 56 Clean
Houston River Waterworks District 11 6,915 33 Clean
Calcasieu Parish Ww District 8 6,834 19 Clean
Calcasieu Parish Ww District No 5 5,388 37 Clean
Dequincy Water System (Lawco) 5,370 1 Clean
Calcasieu Parish Ww District No 4 5,340 28 Clean
Westlake City of Water System 4,858 57 Clean
Calcasieu Parish Ww District 7 4,791 15 Clean
Town of Vinton Water System 4,101 16 Clean
Town of Iowa Water System 3,636 39 Clean
Calcasieu Ww #14 Ward 5 3,150 47 -
Delta Downs Inc Water System 2,481 39 -
Gulf Stream Manor Water System 2,130 210 -
Calcasieu Parish Ww 12 Ward 3 2,130 4 -
Westlake US 2 LLC S Complex Water System 1,700 33 -
Citgo Petroleum Refinery Water System 1,263 65 -
Quail Ridge Estates Water System 1,119 25 -
Toomey Rest Area Water System 1,001 1 -
Waterworks Dist. No. 10 of Ward 7 942 9 -
Country Pines North Subdivision WS 936 100 -
Phillips 66 Lake Charles Refinery 770 53 -
Fairview Mobile Estates North WS 669 20 -
Mossville Ww District No 2 660 47 -
Magnolia-Lake Street 651 61 -
Maplewood Place Park Water System 597 1 -
Country Pines South Subdivision WS 570 0 -
The Charleston Mhc Water System 567 40 -
Border Town Travel Plaza 500 1 -
Garden Heights Water System 465 13 -
Smith Mobile Home Village Water System 444 97 -
The Sallier Mhc Water System 400 44 -
Fairview Mobile Estates South WS 378 26 -
Prairie Plaza Water System 350 45 -
Oak Meadows Subdivision Water System 318 35 -
Magnolia-Utility Service of Lake Charles 306 106 -
The Longhorn Truck Stop and Restaurant 300 4 -
Cash Magic-Vinton Water System 300 8 -
Lake Charles Harbor Terminal District WS 300 0 -
Magnolia-Brigas Estates 294 128 -
Sugarcane Townes Water System 288 6 -
Osprey Lakes RV Park Water System 279 12 -
Oak Pine Mobile Home Park Water System 240 66 -
Pharos Mobile Home Community South 222 132 -
River Church Water System 220 15 -
Texas Pelican Complex 200 28 -
Pharos Mobile Home Community North 162 143 -
The Reserve Mhc Water System 159 30 -

Other Counties in Louisiana

East Baton Rouge Parish County
19 systems · 650,087 served · 566 violations
Jefferson Parish County
4 systems · 440,987 served · 247 violations
Orleans Parish County
10 systems · 389,093 served · 157 violations
Lafayette Parish County
62 systems · 303,179 served · 2,569 violations
St. Tammany Parish County
213 systems · 266,825 served · 7,149 violations
Caddo Parish County
48 systems · 249,641 served · 5,038 violations

Drinking Water Guides

Frequently Asked Questions

How many water violations are in Calcasieu Parish County? ▼
Calcasieu Parish County has 3,535 total drinking water violations across 80 water systems, of which 898 are health-based violations. 90.0% of systems have at least one violation.
How many people get water from Calcasieu Parish County systems? ▼
Water systems in Calcasieu Parish County serve approximately 216,042 people through 80 public water systems.
Has PFAS been detected in Calcasieu Parish County water? ▼
Of 13 water systems tested for PFAS in Calcasieu Parish County, 12 had PFAS detected (92.3% detection rate).
What types of water sources supply Calcasieu Parish County? ▼
Water systems in Calcasieu Parish County use GW (50 systems) as their primary water sources.
Are health-based violations serious? ▼
Health-based violations indicate that drinking water exceeded Maximum Contaminant Levels (MCLs) set by the EPA or failed treatment technique requirements. 25.4% of Calcasieu Parish County's violations are health-based. Not all violations indicate immediate health risk, but they require corrective action.
Data Sources & Methodology

Drinking water violation data from the EPA Safe Drinking Water Information System (SDWIS). PFAS testing data from the UCMR5 monitoring program. SDWIS tracks all public water systems regulated under the Safe Drinking Water Act.

Violations are categorized as health-based (Maximum Contaminant Level exceedances, treatment technique failures) or monitoring/reporting violations. Not all violations indicate an immediate health risk.

Read our methodology - how this data is sourced, computed, and verified.

Data sourced from EPA SDWIS and UCMR5 PFAS monitoring data. See our methodology for details. Retrieved and formatted by PlainWater Editorial

Every figure on PlainWater is rendered directly from EPA SDWIS drinking-water data, no number is typed in by an editor. This page draws directly on EPA SDWIS data, no figure is typed in by an editor. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error.