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Community Water System · PWS LA1097039

St. Landry Waterworks District No. 5

Krotz Springs, Louisiana 70750 - drinking water served from groundwater sources to 519 people, tracked in EPA SDWIS and UCMR5.

519
People served
31
EPA violations
0
Health-based
Untested
UCMR5 result

The verdict

EPA records 31 drinking-water violations at St. Landry Waterworks District No. 5 - below the Louisiana per-system average.

31
Total EPA violations on record
0%
Health-based (MCL / treatment failure)
519
People served by this system
N/A
PFAS compounds detected (UCMR5)

Water Quality Snapshot: St. Landry Waterworks District No. 5

St. Landry Waterworks District No. 5 is a local-owned community water system that delivers drinking water to 519 residents in Krotz Springs, Louisiana (St. Landry Parish County) through 173 service connections. Its water is drawn from groundwater sources. EPA's Safe Drinking Water Information System records 31 total violations for this system , of which 0 (0%) are health-based, meaning a contaminant exceeded an EPA Maximum Contaminant Level or a required treatment technique failed. A further 25 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 Lead and Copper Rule, recorded in 7 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. Statewide, 218 of 265 UCMR5-tested systems have reported PFAS detections (82.3%).

St. Landry Waterworks District No. 5's 31 violations sit below 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
519
Total Violations
31
Health-Based Violations
0
Water Source
Groundwater

System Details

System Type
Community
Owner Type
Local
Connections
173
County
St. Landry Parish
School/Daycare
No
MCL Violations
0
Monitoring Violations
25
Treatment Tech Violations
0

Violation History

Contaminant violations recorded by EPA.

Contaminant Category Count Latest
Lead and Copper Rule MR 7 2024
Total Haloacetic Acids (HAA5) MR 7 2013
TTHM MR 7 2013
Coliform (TCR) MR 4 2014
Consumer Confidence Rule Other 3 2021
Public Notice Other 2 2015
Revised Total Coliform Rule Other 1 2016

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 St. Landry Waterworks District No. 5.

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 LA1097039 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 Lead and Copper Rule MR 7 SDWIS / LA1097039 / 5000
2021 Consumer Confidence Rule Other 3 SDWIS / LA1097039 / 7000
2016 Revised Total Coliform Rule Other 1 SDWIS / LA1097039 / 8000
2015 Public Notice Other 2 SDWIS / LA1097039 / 7500
2014 Coliform (TCR) MR 4 SDWIS / LA1097039 / 3100
2013 Total Haloacetic Acids (HAA5) MR 7 SDWIS / LA1097039 / 2456
2013 TTHM MR 7 SDWIS / LA1097039 / 2950

How St. Landry Waterworks District No. 5 Compares

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

Metric St. Landry Waterworks District No. 5 Louisiana avg Federal benchmark
Total violations 31 93.2 SDWA compliance, any non-zero count is a recorded breach
Health-based violations 0 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 519 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 St. Landry Waterworks District No. 5 water safe to drink? ▼
St. Landry Waterworks District No. 5 (PWS ID: LA1097039) has 31 recorded violations in the EPA SDWIS database. No PFAS contamination was detected in UCMR5 testing. This system serves 519 people using Groundwater sources.
How many people does St. Landry Waterworks District No. 5 serve? ▼
St. Landry Waterworks District No. 5 serves 519 people in Krotz Springs, Louisiana. It is a Local-owned system using Groundwater water sources with 173 service connections.
What type of violations does St. Landry Waterworks District No. 5 have? ▼
St. Landry Waterworks District No. 5 has 31 total violations: 0 health-based violations (MCL exceedances or treatment failures), 25 monitoring/reporting violations, and 0 treatment technique violations. Health-based violations indicate contaminant levels exceeded EPA safe limits.
Has PFAS been detected in St. Landry Waterworks District No. 5 water? ▼
No PFAS testing data is available for St. Landry Waterworks District No. 5 under the EPA's UCMR5 monitoring program.
What water source does St. Landry Waterworks District No. 5 use? ▼
St. Landry Waterworks District No. 5 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. 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.