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Community Water System · PWS IN5202034

Pioneer Water L.L.C.

St. Joe, Indiana 46785 - drinking water served from groundwater sources to 2,076 people, tracked in EPA SDWIS and UCMR5.

2,076
People served
132
EPA violations
0
Health-based
Untested
UCMR5 result

The verdict

EPA records 132 drinking-water violations at Pioneer Water L.L.C. - above the Indiana per-system average.

132
Total EPA violations on record
0%
Health-based (MCL / treatment failure)
2,076
People served by this system
N/A
PFAS compounds detected (UCMR5)

Water Quality Snapshot: Pioneer Water L.L.C.

Pioneer Water L.L.C. is a private-owned community water system that delivers drinking water to 2,076 residents in St. Joe, Indiana (Allen County) through 602 service connections. Its water is drawn from groundwater sources. EPA's Safe Drinking Water Information System records 132 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 108 monitoring and reporting violations are on file. The most recent violation on record dates to 2025.

The most frequently cited contaminant at this system is Consumer Confidence Rule, recorded in 17 violations (Other). This system has not yet been sampled under EPA's UCMR5 PFAS monitoring program, so no PFAS detection data is available here.

Across Indiana, EPA tracks 3,967 public water systems serving 5,774,616 people, with 352,710 cumulative violations and 35,932 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 88.9 violations. Statewide, 93 of 229 UCMR5-tested systems have reported PFAS detections (40.6%).

Pioneer Water L.L.C.'s 132 violations sit above the Indiana 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
2,076
Total Violations
132
Health-Based Violations
0
Water Source
Groundwater

System Details

System Type
Community
Owner Type
Private
Connections
602
County
Allen
School/Daycare
No
MCL Violations
0
Monitoring Violations
108
Treatment Tech Violations
0

Violation History

Contaminant violations recorded by EPA.

Contaminant Category Count Latest
Consumer Confidence Rule Other 17 2025
Nitrate MR 6 1999
Revised Total Coliform Rule RPT 6 2021
Lead and Copper Rule MR 6 2024
Revised Total Coliform Rule MON 4 2021
Total Haloacetic Acids (HAA5) MR 4 2014
TTHM MR 4 2014
Dalapon MR 3 2001
Diquat MR 3 2001
Di(2-ethylhexyl) adipate MR 3 2001
Di(2-ethylhexyl) phthalate MR 3 2001
Picloram MR 3 2001
Dinoseb MR 3 2001
Hexachlorocyclopentadiene MR 3 2001
Carbofuran MR 3 2001
2,4-D MR 3 2001
2,4,5-TP MR 3 2001
HEXACHLOROBENZENE MR 3 2001
Benzo(a)pyrene MR 3 2001
Pentachlorophenol MR 3 2001
1,2-DIBROMO-3-CHLOROPROPANE MR 3 2001
Endrin MR 3 2001
BHC-GAMMA MR 3 2001
Heptachlor epoxide MR 3 2001
Atrazine MR 3 2001
Coliform (TCR) MR 3 2004
Methoxychlor MR 3 2001
ETHYLENE DIBROMIDE MR 3 2001
Chlordane MR 3 2001
Endothall MR 3 2001

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 Pioneer Water L.L.C..

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 IN5202034 on SDWIS

Source: EPA SDWIS Federal Reports Search

State Regulator

Indiana Drinking Water Authority

Indiana Department of Environmental Management, Drinking Water Branch is the primacy agency that licenses and inspects Pioneer Water L.L.C. under EPA-delegated authority.

Open IN regulator portal

Source: Indiana Department of Environmental Management, Drinking Water Branch

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
2025 Consumer Confidence Rule Other 17 SDWIS / IN5202034 / 7000
2024 Lead and Copper Rule MR 6 SDWIS / IN5202034 / 5000
2021 Revised Total Coliform Rule RPT 6 SDWIS / IN5202034 / 8000
2021 Revised Total Coliform Rule MON 4 SDWIS / IN5202034 / 8000
2014 Total Haloacetic Acids (HAA5) MR 4 SDWIS / IN5202034 / 2456
2014 TTHM MR 4 SDWIS / IN5202034 / 2950
2004 Coliform (TCR) MR 3 SDWIS / IN5202034 / 3100
2001 Dalapon MR 3 SDWIS / IN5202034 / 2031
2001 Diquat MR 3 SDWIS / IN5202034 / 2032
2001 Di(2-ethylhexyl) adipate MR 3 SDWIS / IN5202034 / 2035
2001 Di(2-ethylhexyl) phthalate MR 3 SDWIS / IN5202034 / 2039
2001 Picloram MR 3 SDWIS / IN5202034 / 2040
2001 Dinoseb MR 3 SDWIS / IN5202034 / 2041
2001 Hexachlorocyclopentadiene MR 3 SDWIS / IN5202034 / 2042
2001 Carbofuran MR 3 SDWIS / IN5202034 / 2046

How Pioneer Water L.L.C. Compares

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

Metric Pioneer Water L.L.C. Indiana avg Federal benchmark
Total violations 132 88.9 SDWA compliance, any non-zero count is a recorded breach
Health-based violations 0 9.1 Indicates a contaminant exceeded a federal MCL
PFAS detection None 40.6% EPA final rule (2024): PFOA/PFOS MCL = 4.0 ppt
Population served 2,076 1,456 Sizing context for compliance burden

Sources: EPA SDWIS and EPA National Primary Drinking Water Regulations (40 CFR Part 141). State averages computed across 3,967 regulated public water systems in Indiana.

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 Pioneer Water L.L.C. water safe to drink? ▼
Pioneer Water L.L.C. (PWS ID: IN5202034) has 132 recorded violations in the EPA SDWIS database. No PFAS contamination was detected in UCMR5 testing. This system serves 2,076 people using Groundwater sources.
How many people does Pioneer Water L.L.C. serve? ▼
Pioneer Water L.L.C. serves 2,076 people in St. Joe, Indiana. It is a Private-owned system using Groundwater water sources with 602 service connections.
What type of violations does Pioneer Water L.L.C. have? ▼
Pioneer Water L.L.C. has 132 total violations: 0 health-based violations (MCL exceedances or treatment failures), 108 monitoring/reporting violations, and 0 treatment technique violations. Health-based violations indicate contaminant levels exceeded EPA safe limits.
Has PFAS been detected in Pioneer Water L.L.C. water? ▼
No PFAS testing data is available for Pioneer Water L.L.C. under the EPA's UCMR5 monitoring program.
What water source does Pioneer Water L.L.C. use? ▼
Pioneer Water L.L.C. 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.