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Community Water System · PWS LA1017016

Village of Hosston Water System

Hosston, Louisiana 71043 - drinking water served from groundwater sources to 729 people, tracked in EPA SDWIS and UCMR5.

729
People served
493
EPA violations
294
Health-based
Untested
UCMR5 result

The verdict

EPA records 493 drinking-water violations at Village of Hosston Water System, 60% of them health-based - above the Louisiana per-system average.

493
Total EPA violations on record
60%
Health-based (MCL / treatment failure)
729
People served by this system
N/A
PFAS compounds detected (UCMR5)

Water Quality Snapshot: Village of Hosston Water System

Village of Hosston Water System is a private-owned community water system that delivers drinking water to 729 residents in Hosston, Louisiana (Caddo Parish County) through 243 service connections. Its water is drawn from groundwater sources. EPA's Safe Drinking Water Information System records 493 total violations for this system , of which 294 (60%) are health-based, meaning a contaminant exceeded an EPA Maximum Contaminant Level or a required treatment technique failed. A further 165 monitoring and reporting violations are on file. The most recent violation on record dates to 2018.

The most frequently cited contaminant at this system is TTHM, recorded in 246 violations (MCL, health-based). 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%).

Village of Hosston Water System's 493 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
729
Total Violations
493
Health-Based Violations
294
Water Source
Groundwater

System Details

System Type
Community
Owner Type
Private
Connections
243
County
Caddo Parish
School/Daycare
No
MCL Violations
287
Monitoring Violations
165
Treatment Tech Violations
7

Violation History

Contaminant violations recorded by EPA.

Contaminant Category Count Latest
TTHM MCL 246 2018
TTHM MR 88 2017
Total Haloacetic Acids (HAA5) MR 67 2014
Coliform (TCR) MCL 41 2015
Public Notice Other 12 2018
Consumer Confidence Rule Other 11 2017
Groundwater Rule TT 7 2017
Coliform (TCR) MR 6 2014
Lead and Copper Rule MR 4 2013

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 Village of Hosston Water System.

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 LA1017016 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
2018 TTHM MCL 246 SDWIS / LA1017016 / 2950
2018 Public Notice Other 12 SDWIS / LA1017016 / 7500
2017 TTHM MR 88 SDWIS / LA1017016 / 2950
2017 Consumer Confidence Rule Other 11 SDWIS / LA1017016 / 7000
2017 Groundwater Rule TT 7 SDWIS / LA1017016 / 0700
2015 Coliform (TCR) MCL 41 SDWIS / LA1017016 / 3100
2014 Total Haloacetic Acids (HAA5) MR 67 SDWIS / LA1017016 / 2456
2014 Coliform (TCR) MR 6 SDWIS / LA1017016 / 3100
2013 Lead and Copper Rule MR 4 SDWIS / LA1017016 / 5000

How Village of Hosston Water System Compares

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

Metric Village of Hosston Water System Louisiana avg Federal benchmark
Total violations 493 93.2 SDWA compliance, any non-zero count is a recorded breach
Health-based violations 294 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 729 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 Village of Hosston Water System water safe to drink? ▼
Village of Hosston Water System (PWS ID: LA1017016) has 493 recorded violations in the EPA SDWIS database. No PFAS contamination was detected in UCMR5 testing. This system serves 729 people using Groundwater sources.
How many people does Village of Hosston Water System serve? ▼
Village of Hosston Water System serves 729 people in Hosston, Louisiana. It is a Private-owned system using Groundwater water sources with 243 service connections.
What type of violations does Village of Hosston Water System have? ▼
Village of Hosston Water System has 493 total violations: 294 health-based violations (MCL exceedances or treatment failures), 165 monitoring/reporting violations, and 7 treatment technique violations. Health-based violations indicate contaminant levels exceeded EPA safe limits.
Has PFAS been detected in Village of Hosston Water System water? ▼
No PFAS testing data is available for Village of Hosston Water System under the EPA's UCMR5 monitoring program.
What water source does Village of Hosston Water System use? ▼
Village of Hosston Water System 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.