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SOUTH CALCASIEU ESTATES SUBDIVISION W S

PWS ID: LA1019098 · MANDEVILLE, Louisiana 70471

SOUTH CALCASIEU ESTATES SUBDIVISION W S serves 144 people in MANDEVILLE, Louisiana using Groundwater water sources. It has 164 recorded EPA violations, including 25 health-based violations. No PFAS contamination was detected in UCMR5 testing.

Water Quality Snapshot: SOUTH CALCASIEU ESTATES SUBDIVISION W S

SOUTH CALCASIEU ESTATES SUBDIVISION W S is a private-owned community water system that delivers drinking water to 144 residents in MANDEVILLE, Louisiana (Calcasieu Parish County) through 12 service connections. Its water is drawn from groundwater sources. EPA's Safe Drinking Water Information System records 164 total violations for this system , of which 25 (15%) are health-based — meaning a contaminant exceeded an EPA Maximum Contaminant Level or a required treatment technique failed. A further 118 monitoring and reporting violations are on file. The most recent violation on record dates to 2015.

The most frequently cited contaminant at this system is Coliform (TCR), recorded in 41 violations (MR). This system has not yet been sampled under EPA's UCMR5 PFAS monitoring program, so no PFAS detection data is available here.

Across Louisiana, EPA tracks 1,234 public water systems serving 5,316,532 people, with 115,060 cumulative violations and 62,164 health-based violations on record. About 93% of systems in the state carry at least one violation, and state-wide the average per system is 93.2 violations. SOUTH CALCASIEU ESTATES SUBDIVISION W S's 164 violations sit above the Louisiana average. Statewide, 218 of 265 UCMR5-tested systems have reported PFAS detections (82.3%). All figures above are sourced directly from EPA SDWIS and UCMR5 public data releases and are updated as EPA publishes new reporting cycles.

Population Served
144
Total Violations
164
Health-Based Violations
25
Water Source
Groundwater

System Details

System Type
Community
Owner Type
Private
Connections
12
County
Calcasieu Parish
School/Daycare
No
MCL Violations
25
Monitoring Violations
118
Treatment Tech Violations
0

Violation History

Contaminant violations recorded by EPA.

Contaminant Category Count Latest
Coliform (TCR) MR 41 2015
TTHM MR 29 2013
Total Haloacetic Acids (HAA5) MR 29 2013
Coliform (TCR) MCL 25 2014
Consumer Confidence Rule Other 15 2010
Chlorine MR 14 2014
Lead and Copper Rule MR 5 2007

Verify This Water System

The figures above are aggregated from EPA's public databases. To verify the underlying records — or to file a complaint, request a Consumer Confidence Report, or check current monitoring status — go directly to the federal and state regulators that enforce the Safe Drinking Water Act for SOUTH CALCASIEU ESTATES SUBDIVISION W S.

Federal Source of Truth

EPA SDWIS — Federal Reports

EPA's Safe Drinking Water Information System (SDWIS) holds the federal compliance record for every regulated public water system. Open the system-level report by PWS ID:

View PWS ID LA1019098 on SDWIS

Source: EPA SDWIS Federal Reports Search

State Regulator

Louisiana Drinking Water Authority

Louisiana's primacy agency administers the Safe Drinking Water Act locally. Search EPA SDWIS for the current state contact, or use the state's public health or environment department portal.

Find LA regulator via EPA SDWIS

Violation Timeline

Each row links to the EPA SDWIS public record for verification. Cross-reference the contaminant code on EPA's federal report to see violation dates, return-to-compliance status, and enforcement actions.

Year (latest) Contaminant Category Count EPA Record
2015 Coliform (TCR) MR 41 SDWIS / LA1019098 / 3100
2014 Coliform (TCR) MCL 25 SDWIS / LA1019098 / 3100
2014 Chlorine MR 14 SDWIS / LA1019098 / 0999
2013 TTHM MR 29 SDWIS / LA1019098 / 2950
2013 Total Haloacetic Acids (HAA5) MR 29 SDWIS / LA1019098 / 2456
2010 Consumer Confidence Rule Other 15 SDWIS / LA1019098 / 7000
2007 Lead and Copper Rule MR 5 SDWIS / LA1019098 / 5000

How SOUTH CALCASIEU ESTATES SUBDIVISION W S Compares

Cross-reference this system's record against state averages and the federal MCL framework for context.

Metric SOUTH CALCASIEU ESTATES SUBDIVISION W S Louisiana avg Federal benchmark
Total violations 164 93.2 SDWA compliance — any non-zero count is a recorded breach
Health-based violations 25 50.4 Indicates a contaminant exceeded a federal MCL
PFAS detection None 82.3% EPA final rule (2024): PFOA/PFOS MCL = 4.0 ppt
Population served 144 4,308 Sizing context for compliance burden

Sources: EPA SDWIS and EPA National Primary Drinking Water Regulations (40 CFR Part 141). State averages computed across 1,234 regulated public water systems in Louisiana.

Federal MCL reference — Safe Drinking Water Act thresholds
Contaminant Federal MCL / Action Level Note
Lead 0 mg/L (Action Level: 0.015 mg/L) Lead and Copper Rule treatment technique
Arsenic 0.010 mg/L (10 ppb) Health-based MCL since 2006
Total Coliform Treatment technique (RTCR) Indicator organism, monitoring trigger
PFOA / PFOS (PFAS) 4.0 ppt each (final 2024 rule) Compliance deadline 2029
Nitrate (as N) 10 mg/L Acute health risk for infants

Frequently Asked Questions

Is SOUTH CALCASIEU ESTATES SUBDIVISION W S water safe to drink?
SOUTH CALCASIEU ESTATES SUBDIVISION W S (PWS ID: LA1019098) has 164 recorded violations in the EPA SDWIS database. No PFAS contamination was detected in UCMR5 testing. This system serves 144 people using Groundwater sources.
How many people does SOUTH CALCASIEU ESTATES SUBDIVISION W S serve?
SOUTH CALCASIEU ESTATES SUBDIVISION W S serves 144 people in MANDEVILLE, Louisiana. It is a Private-owned system using Groundwater water sources with 12 service connections.
What type of violations does SOUTH CALCASIEU ESTATES SUBDIVISION W S have?
SOUTH CALCASIEU ESTATES SUBDIVISION W S has 164 total violations: 25 health-based violations (MCL exceedances or treatment failures), 118 monitoring/reporting violations, and 0 treatment technique violations. Health-based violations indicate contaminant levels exceeded EPA safe limits.
Has PFAS been detected in SOUTH CALCASIEU ESTATES SUBDIVISION W S water?
No PFAS testing data is available for SOUTH CALCASIEU ESTATES SUBDIVISION W S under the EPA's UCMR5 monitoring program.
What water source does SOUTH CALCASIEU ESTATES SUBDIVISION W S use?
SOUTH CALCASIEU ESTATES SUBDIVISION W S uses Groundwater as its primary water source. It is classified as a Community Water System (CWS), serving residential populations year-round.
Where does this data come from?
All data comes from the EPA Safe Drinking Water Information System (SDWIS) and the UCMR5 PFAS monitoring program. SDWIS tracks compliance for all public water systems regulated under the Safe Drinking Water Act.

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Data Sources: EPA Safe Drinking Water Information System (SDWIS), Q4 2025. This data is provided for informational purposes only.

Related

Data sourced from $official public datasets. See our methodology for details. Retrieved and formatted by PlainWater Editorial