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States → Mississippi

Community Water System · PWS MS0750011

Yokena-Jeff Davis Water District Inc

Vicksburg, Mississippi 39180 - drinking water served from groundwater sources to 2,360 people, tracked in EPA SDWIS and UCMR5.

2,360
People served
44
EPA violations
18
Health-based
Untested
UCMR5 result

The verdict

EPA records 44 drinking-water violations at Yokena-Jeff Davis Water District Inc, 41% of them health-based - below the Mississippi per-system average.

44
Total EPA violations on record
41%
Health-based (MCL / treatment failure)
2,360
People served by this system
N/A
PFAS compounds detected (UCMR5)

Water Quality Snapshot: Yokena-Jeff Davis Water District Inc

Yokena-Jeff Davis Water District Inc is a public/private-owned community water system that delivers drinking water to 2,360 residents in Vicksburg, Mississippi (Warren County) through 887 service connections. Its water is drawn from groundwater sources. EPA's Safe Drinking Water Information System records 44 total violations for this system , of which 18 (41%) are health-based, meaning a contaminant exceeded an EPA Maximum Contaminant Level or a required treatment technique failed. A further 11 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 TTHM, recorded in 12 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 Mississippi, EPA tracks 1,185 public water systems serving 3,286,781 people, with 499,292 cumulative violations and 10,292 health-based violations on record. About 96% of systems in the state carry at least one violation, and state-wide the average per system is 421.3 violations. Statewide, 160 of 238 UCMR5-tested systems have reported PFAS detections (67.2%).

Yokena-Jeff Davis Water District Inc's 44 violations sit below the Mississippi 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
2,360
Total Violations
44
Health-Based Violations
18
Water Source
Groundwater

System Details

System Type
Community
Owner Type
Public/Private
Connections
887
County
Warren
School/Daycare
No
MCL Violations
16
Monitoring Violations
11
Treatment Tech Violations
2

Violation History

Contaminant violations recorded by EPA.

Contaminant Category Count Latest
TTHM MCL 12 2021
Public Notice Other 5 2021
Coliform (TCR) MR 4 2000
Coliform (TCR) MCL 4 1994
Revised Total Coliform Rule MON 4 2024
Chlorine MR 3 2024
LEAD AND COPPER RULE REVISIONS TT 2 2024
LEAD AND COPPER RULE REVISIONS RPT 2 2024

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 Yokena-Jeff Davis Water District Inc.

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 MS0750011 on SDWIS

Source: EPA SDWIS Federal Reports Search

State Regulator

Mississippi Drinking Water Authority

Mississippi'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 MS 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 Revised Total Coliform Rule MON 4 SDWIS / MS0750011 / 8000
2024 Chlorine MR 3 SDWIS / MS0750011 / 0999
2024 LEAD AND COPPER RULE REVISIONS TT 2 SDWIS / MS0750011 / 5200
2024 LEAD AND COPPER RULE REVISIONS RPT 2 SDWIS / MS0750011 / 5200
2021 TTHM MCL 12 SDWIS / MS0750011 / 2950
2021 Public Notice Other 5 SDWIS / MS0750011 / 7500
2000 Coliform (TCR) MR 4 SDWIS / MS0750011 / 3100
1994 Coliform (TCR) MCL 4 SDWIS / MS0750011 / 3100

How Yokena-Jeff Davis Water District Inc Compares

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

Metric Yokena-Jeff Davis Water District Inc Mississippi avg Federal benchmark
Total violations 44 421.3 SDWA compliance, any non-zero count is a recorded breach
Health-based violations 18 8.7 Indicates a contaminant exceeded a federal MCL
PFAS detection None 67.2% EPA final rule (2024): PFOA/PFOS MCL = 4.0 ppt
Population served 2,360 2,774 Sizing context for compliance burden

Sources: EPA SDWIS and EPA National Primary Drinking Water Regulations (40 CFR Part 141). State averages computed across 1,185 regulated public water systems in Mississippi.

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 Yokena-Jeff Davis Water District Inc water safe to drink? ▼
Yokena-Jeff Davis Water District Inc (PWS ID: MS0750011) has 44 recorded violations in the EPA SDWIS database. No PFAS contamination was detected in UCMR5 testing. This system serves 2,360 people using Groundwater sources.
How many people does Yokena-Jeff Davis Water District Inc serve? ▼
Yokena-Jeff Davis Water District Inc serves 2,360 people in Vicksburg, Mississippi. It is a Public/Private-owned system using Groundwater water sources with 887 service connections.
What type of violations does Yokena-Jeff Davis Water District Inc have? ▼
Yokena-Jeff Davis Water District Inc has 44 total violations: 18 health-based violations (MCL exceedances or treatment failures), 11 monitoring/reporting violations, and 2 treatment technique violations. Health-based violations indicate contaminant levels exceeded EPA safe limits.
Has PFAS been detected in Yokena-Jeff Davis Water District Inc water? ▼
No PFAS testing data is available for Yokena-Jeff Davis Water District Inc under the EPA's UCMR5 monitoring program.
What water source does Yokena-Jeff Davis Water District Inc use? ▼
Yokena-Jeff Davis Water District Inc 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.