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Community Water System · PWS KS2013919

Public Wholesale WSD 12

Melvern, Kansas 66510-0022 - drinking water served from surface water sources to 1 people, tracked in EPA SDWIS and UCMR5.

1
People served
168
EPA violations
159
Health-based
Untested
UCMR5 result

The verdict

EPA records 168 drinking-water violations at Public Wholesale WSD 12, 95% of them health-based - above the Kansas per-system average.

168
Total EPA violations on record
95%
Health-based (MCL / treatment failure)
1
People served by this system
N/A
PFAS compounds detected (UCMR5)

Water Quality Snapshot: Public Wholesale WSD 12

Public Wholesale WSD 12 is a local-owned community water system that delivers drinking water to 1 residents in Melvern, Kansas (Osage County) through 10 service connections. Its water is drawn from surface water sources. EPA's Safe Drinking Water Information System records 168 total violations for this system , of which 159 (95%) are health-based, meaning a contaminant exceeded an EPA Maximum Contaminant Level or a required treatment technique failed. A further 7 monitoring and reporting violations are on file. The most recent violation on record dates to 2022.

The most frequently cited contaminant at this system is CARBON, TOTAL, recorded in 139 violations (TT, 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 Kansas, EPA tracks 957 public water systems serving 2,894,673 people, with 84,344 cumulative violations and 33,424 health-based violations on record. About 99% of systems in the state carry at least one violation, and state-wide the average per system is 88.1 violations. Statewide, 89 of 103 UCMR5-tested systems have reported PFAS detections (86.4%).

Public Wholesale WSD 12's 168 violations sit above the Kansas 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
Total Violations
168
Health-Based Violations
159
Water Source
Surface Water

System Details

System Type
Community
Owner Type
Local
Connections
10
County
Osage
School/Daycare
No
MCL Violations
20
Monitoring Violations
7
Treatment Tech Violations
139

Violation History

Contaminant violations recorded by EPA.

Contaminant Category Count Latest
CARBON, TOTAL TT 139 2016
Total Haloacetic Acids (HAA5) MCL 20 2010
Interim Enhanced Surface Water Treatment Rule MR 4 2022
Surface Water Treatment Rule MR 3 1997
Public Notice Other 1 2015
Consumer Confidence Rule Other 1 2005

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 Public Wholesale WSD 12.

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 KS2013919 on SDWIS

Source: EPA SDWIS Federal Reports Search

State Regulator

Kansas Drinking Water Authority

Kansas'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 KS 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
2022 Interim Enhanced Surface Water Treatment Rule MR 4 SDWIS / KS2013919 / 0300
2016 CARBON, TOTAL TT 139 SDWIS / KS2013919 / 2920
2015 Public Notice Other 1 SDWIS / KS2013919 / 7500
2010 Total Haloacetic Acids (HAA5) MCL 20 SDWIS / KS2013919 / 2456
2005 Consumer Confidence Rule Other 1 SDWIS / KS2013919 / 7000
1997 Surface Water Treatment Rule MR 3 SDWIS / KS2013919 / 0200

How Public Wholesale WSD 12 Compares

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

Metric Public Wholesale WSD 12 Kansas avg Federal benchmark
Total violations 168 88.1 SDWA compliance, any non-zero count is a recorded breach
Health-based violations 159 34.9 Indicates a contaminant exceeded a federal MCL
PFAS detection None 86.4% EPA final rule (2024): PFOA/PFOS MCL = 4.0 ppt
Population served 1 3,025 Sizing context for compliance burden

Sources: EPA SDWIS and EPA National Primary Drinking Water Regulations (40 CFR Part 141). State averages computed across 957 regulated public water systems in Kansas.

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 Public Wholesale WSD 12 water safe to drink? ▼
Public Wholesale WSD 12 (PWS ID: KS2013919) has 168 recorded violations in the EPA SDWIS database. No PFAS contamination was detected in UCMR5 testing. This system serves 1 people using Surface Water sources.
How many people does Public Wholesale WSD 12 serve? ▼
Public Wholesale WSD 12 serves 1 people in Melvern, Kansas. It is a Local-owned system using Surface Water water sources with 10 service connections.
What type of violations does Public Wholesale WSD 12 have? ▼
Public Wholesale WSD 12 has 168 total violations: 159 health-based violations (MCL exceedances or treatment failures), 7 monitoring/reporting violations, and 139 treatment technique violations. Health-based violations indicate contaminant levels exceeded EPA safe limits.
Has PFAS been detected in Public Wholesale WSD 12 water? ▼
No PFAS testing data is available for Public Wholesale WSD 12 under the EPA's UCMR5 monitoring program.
What water source does Public Wholesale WSD 12 use? ▼
Public Wholesale WSD 12 uses Surface Water 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.