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Community Water System · PWS LA1035007

East Carroll WS South

Transylvania, Louisiana 71286 - drinking water served from groundwater sources to 1,071 people, tracked in EPA SDWIS and UCMR5.

1,071
People served
123
EPA violations
36
Health-based
No PFAS
UCMR5 result

The verdict

EPA records 123 drinking-water violations at East Carroll WS South, 29% of them health-based - above the Louisiana per-system average.

123
Total EPA violations on record
29%
Health-based (MCL / treatment failure)
1,071
People served by this system
0
PFAS compounds detected (UCMR5)

Water Quality Snapshot: East Carroll WS South

East Carroll WS South is a private-owned community water system that delivers drinking water to 1,071 residents in Transylvania, Louisiana (East Carroll Parish County) through 357 service connections. Its water is drawn from groundwater sources. EPA's Safe Drinking Water Information System records 123 total violations for this system , of which 36 (29%) are health-based, meaning a contaminant exceeded an EPA Maximum Contaminant Level or a required treatment technique failed. A further 44 monitoring and reporting violations are on file. The most recent violation on record dates to 2024.

The most frequently cited contaminant at this system is Groundwater Rule, recorded in 35 violations (TT, health-based). This system was sampled under EPA's UCMR5 PFAS monitoring program and no PFAS compounds were detected above the minimum reporting level.

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. Statewide, 218 of 265 UCMR5-tested systems have reported PFAS detections (82.3%).

East Carroll WS South's 123 violations sit above the Louisiana average.

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
1,071
Total Violations
123
Health-Based Violations
36
Water Source
Groundwater

System Details

System Type
Community
Owner Type
Private
Connections
357
County
East Carroll Parish
School/Daycare
No
MCL Violations
0
Monitoring Violations
44
Treatment Tech Violations
36

Violation History

Contaminant violations recorded by EPA.

Contaminant Category Count Latest
Groundwater Rule TT 35 2024
Public Notice Other 29 2024
Coliform (TCR) MR 21 2015
Consumer Confidence Rule Other 11 2017
TTHM MR 8 2014
Total Haloacetic Acids (HAA5) MR 8 2014
Chlorine MR 5 2014
Lead and Copper Rule MR 2 2017
LEAD AND COPPER RULE REVISIONS TT 1 2024
LEAD AND COPPER RULE REVISIONS RPT 1 2024

PFAS Testing Results (UCMR5)

Results from EPA's Fifth Unregulated Contaminant Monitoring Rule. 0 of 33 samples detected PFAS.

Contaminant Date Result MRL Status
PFOS 8/30/2023 <4.00 ppt 4.00 ppt Not Detected
HFPO-DA 8/30/2023 <5.00 ppt 5.00 ppt Not Detected
ADONA 8/30/2023 <3.00 ppt 3.00 ppt Not Detected
9Cl-PF3ONS 8/30/2023 <2.00 ppt 2.00 ppt Not Detected
11Cl-PF3OUdS 8/30/2023 <5.00 ppt 5.00 ppt Not Detected
PFUnA 8/30/2023 <2.00 ppt 2.00 ppt Not Detected
PFHxA 8/30/2023 <3.00 ppt 3.00 ppt Not Detected
PFDoA 8/30/2023 <3.00 ppt 3.00 ppt Not Detected
PFBA 8/30/2023 <5.00 ppt 5.00 ppt Not Detected
PFOA 8/30/2023 <4.00 ppt 4.00 ppt Not Detected
PFHxS 8/30/2023 <3.00 ppt 3.00 ppt Not Detected
PFNA 8/30/2023 <4.00 ppt 4.00 ppt Not Detected
PFHpA 8/30/2023 <3.00 ppt 3.00 ppt Not Detected
PFDA 8/30/2023 <3.00 ppt 3.00 ppt Not Detected
NEtFOSAA 8/30/2023 <5.00 ppt 5.00 ppt Not Detected
PFBS 8/30/2023 <3.00 ppt 3.00 ppt Not Detected
6:2 FTS 8/30/2023 <5.00 ppt 5.00 ppt Not Detected
NMeFOSAA 8/30/2023 <6.00 ppt 6.00 ppt Not Detected
PFTrDA 8/30/2023 <7.00 ppt 7.00 ppt Not Detected
PFTA 8/30/2023 <8.00 ppt 8.00 ppt Not Detected
PFHpS 8/30/2023 <3.00 ppt 3.00 ppt Not Detected
NFDHA 8/30/2023 <20.00 ppt 20.00 ppt Not Detected
PFEESA 8/30/2023 <3.00 ppt 3.00 ppt Not Detected
PFMBA 8/30/2023 <3.00 ppt 3.00 ppt Not Detected
PFPeA 8/30/2023 <3.00 ppt 3.00 ppt Not Detected
PFMPA 8/30/2023 <4.00 ppt 4.00 ppt Not Detected
PFPeS 8/30/2023 <4.00 ppt 4.00 ppt Not Detected
4:2 FTS 8/30/2023 <3.00 ppt 3.00 ppt Not Detected
8:2 FTS 8/30/2023 <5.00 ppt 5.00 ppt Not Detected
NEtFOSAA 4/5/2023 <5.00 ppt 5.00 ppt Not Detected
PFTrDA 4/5/2023 <7.00 ppt 7.00 ppt Not Detected
PFTA 4/5/2023 <8.00 ppt 8.00 ppt Not Detected
NMeFOSAA 4/5/2023 <6.00 ppt 6.00 ppt Not Detected

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 East Carroll WS South.

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 LA1035007 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
2024 Groundwater Rule TT 35 SDWIS / LA1035007 / 0700
2024 Public Notice Other 29 SDWIS / LA1035007 / 7500
2024 LEAD AND COPPER RULE REVISIONS TT 1 SDWIS / LA1035007 / 5200
2024 LEAD AND COPPER RULE REVISIONS RPT 1 SDWIS / LA1035007 / 5200
2017 Consumer Confidence Rule Other 11 SDWIS / LA1035007 / 7000
2017 Lead and Copper Rule MR 2 SDWIS / LA1035007 / 5000
2015 Coliform (TCR) MR 21 SDWIS / LA1035007 / 3100
2014 TTHM MR 8 SDWIS / LA1035007 / 2950
2014 Total Haloacetic Acids (HAA5) MR 8 SDWIS / LA1035007 / 2456
2014 Chlorine MR 5 SDWIS / LA1035007 / 0999

How East Carroll WS South Compares

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

Metric East Carroll WS South Louisiana avg Federal benchmark
Total violations 123 93.2 SDWA compliance, any non-zero count is a recorded breach
Health-based violations 36 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 1,071 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 (EPA proposed extending to 2031, not yet final as of May 2026)
Nitrate (as N) 10 mg/L Acute health risk for infants

Frequently Asked Questions

Is East Carroll WS South water safe to drink? ▼
East Carroll WS South (PWS ID: LA1035007) has 123 recorded violations in the EPA SDWIS database. No PFAS contamination was detected in UCMR5 testing. This system serves 1,071 people using Groundwater sources.
How many people does East Carroll WS South serve? ▼
East Carroll WS South serves 1,071 people in Transylvania, Louisiana. It is a Private-owned system using Groundwater water sources with 357 service connections.
What type of violations does East Carroll WS South have? ▼
East Carroll WS South has 123 total violations: 36 health-based violations (MCL exceedances or treatment failures), 44 monitoring/reporting violations, and 36 treatment technique violations. Health-based violations indicate contaminant levels exceeded EPA safe limits.
Has PFAS been detected in East Carroll WS South water? ▼
No. East Carroll WS South was tested for PFAS under the EPA's UCMR5 monitoring program and no PFAS contamination was detected.
What water source does East Carroll WS South use? ▼
East Carroll WS South 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.
Data Sources: EPA Safe Drinking Water Information System (SDWIS), Q4 2025. PFAS data from EPA UCMR5 monitoring program (2023-2025). This data is provided for informational purposes only.

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 system's figures are rendered directly from 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.