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ATCHISON, CITY OF

PWS ID: KS2000506 · ATCHISON, Kansas 66002

ATCHISON, CITY OF serves 10,694 people in ATCHISON, Kansas using Surface Water water sources. It has 216 recorded EPA violations, including 163 health-based violations. PFAS "forever chemicals" were detected in UCMR5 testing (1 compound found).

Water Quality Snapshot: ATCHISON, CITY OF

ATCHISON, CITY OF is a local-owned community water system that delivers drinking water to 10,694 residents in ATCHISON, Kansas (Atchison County) through 4,637 service connections. Its water is drawn from surface water sources. EPA's Safe Drinking Water Information System records 216 total violations for this system , of which 163 (75%) are health-based — meaning a contaminant exceeded an EPA Maximum Contaminant Level or a required treatment technique failed. A further 38 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 CARBON, TOTAL, recorded in 66 violations (TT, health-based). Under EPA's UCMR5 PFAS monitoring program, 1 PFAS compound was detected in samples collected from this system, with a maximum reported concentration of 60.4 ppt. PFAS are persistent synthetic chemicals linked to health effects at very low exposure levels.

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. ATCHISON, CITY OF's 216 violations sit above the Kansas average. Statewide, 89 of 103 UCMR5-tested systems have reported PFAS detections (86.4%). All figures above are sourced directly from EPA SDWIS and UCMR5 public data releases and are updated as EPA publishes new reporting cycles.

PFAS Detected

1 PFAS "forever chemicals" detected in testing under EPA's UCMR5 monitoring program.

Population Served
10,694
Total Violations
216
Health-Based Violations
163
Water Source
Surface Water

System Details

System Type
Community
Owner Type
Local
Connections
4,637
County
Atchison
School/Daycare
No
MCL Violations
46
Monitoring Violations
38
Treatment Tech Violations
117

Violation History

Contaminant violations recorded by EPA.

Contaminant Category Count Latest
CARBON, TOTAL TT 66 2015
Interim Enhanced Surface Water Treatment Rule TT 32 2019
Total Haloacetic Acids (HAA5) MCL 24 2011
Surface Water Treatment Rule TT 19 2001
TTHM MCL 18 2011
Surface Water Treatment Rule MR 14 2002
CARBON, TOTAL MR 8 2008
Public Notice Other 4 2020
Consumer Confidence Rule Other 4 2023
Atrazine MCL 4 1996
Total Haloacetic Acids (HAA5) MR 4 2018
Bromate MR 4 2019
TTHM MR 4 2018
Interim Enhanced Surface Water Treatment Rule MR 2 2002
Lead and Copper Rule MR 2 2024

PFAS Testing Results (UCMR5)

Results from EPA's Fifth Unregulated Contaminant Monitoring Rule. 4 of 120 samples detected PFAS.

Contaminant Date Result MRL Status
NMeFOSAA 7/9/2024 <0.006 µg/L 0.006 µg/L Not Detected
11Cl-PF3OUdS 7/9/2024 <0.005 µg/L 0.005 µg/L Not Detected
PFPeS 7/9/2024 <0.004 µg/L 0.004 µg/L Not Detected
NFDHA 7/9/2024 <0.02 µg/L 0.02 µg/L Not Detected
PFEESA 7/9/2024 <0.003 µg/L 0.003 µg/L Not Detected
PFMBA 7/9/2024 <0.003 µg/L 0.003 µg/L Not Detected
PFPeA 7/9/2024 <0.003 µg/L 0.003 µg/L Not Detected
PFMPA 7/9/2024 <0.004 µg/L 0.004 µg/L Not Detected
8:2 FTS 7/9/2024 <0.005 µg/L 0.005 µg/L Not Detected
4:2 FTS 7/9/2024 <0.003 µg/L 0.003 µg/L Not Detected
6:2 FTS 7/9/2024 <0.005 µg/L 0.005 µg/L Not Detected
9Cl-PF3ONS 7/9/2024 <0.002 µg/L 0.002 µg/L Not Detected
PFBA 7/9/2024 <0.005 µg/L 0.005 µg/L Not Detected
PFTA 7/9/2024 <0.008 µg/L 0.008 µg/L Not Detected
ADONA 7/9/2024 <0.003 µg/L 0.003 µg/L Not Detected
NEtFOSAA 7/9/2024 <0.005 µg/L 0.005 µg/L Not Detected
PFHxA 7/9/2024 <0.003 µg/L 0.003 µg/L Not Detected
PFDoA 7/9/2024 <0.003 µg/L 0.003 µg/L Not Detected
PFDA 7/9/2024 <0.003 µg/L 0.003 µg/L Not Detected
PFOA 7/9/2024 <0.004 µg/L 0.004 µg/L Not Detected
PFOS 7/9/2024 <0.004 µg/L 0.004 µg/L Not Detected
PFNA 7/9/2024 <0.004 µg/L 0.004 µg/L Not Detected
PFHxS 7/9/2024 <0.003 µg/L 0.003 µg/L Not Detected
PFHpA 7/9/2024 <0.003 µg/L 0.003 µg/L Not Detected
PFHpS 7/9/2024 <0.003 µg/L 0.003 µg/L Not Detected
PFBS 7/9/2024 <0.003 µg/L 0.003 µg/L Not Detected
PFTrDA 7/9/2024 <0.007 µg/L 0.007 µg/L Not Detected
HFPO-DA 7/9/2024 <0.005 µg/L 0.005 µg/L Not Detected
PFUnA 7/9/2024 <0.002 µg/L 0.002 µg/L Not Detected
lithium 7/9/2024 26.7000 µg/L 9 µg/L Detected
PFDA 4/3/2024 <0.003 µg/L 0.003 µg/L Not Detected
HFPO-DA 4/3/2024 <0.005 µg/L 0.005 µg/L Not Detected
ADONA 4/3/2024 <0.003 µg/L 0.003 µg/L Not Detected
9Cl-PF3ONS 4/3/2024 <0.002 µg/L 0.002 µg/L Not Detected
11Cl-PF3OUdS 4/3/2024 <0.005 µg/L 0.005 µg/L Not Detected
PFUnA 4/3/2024 <0.002 µg/L 0.002 µg/L Not Detected
PFMBA 4/3/2024 <0.003 µg/L 0.003 µg/L Not Detected
PFDoA 4/3/2024 <0.003 µg/L 0.003 µg/L Not Detected
6:2 FTS 4/3/2024 <0.005 µg/L 0.005 µg/L Not Detected
PFOA 4/3/2024 <0.004 µg/L 0.004 µg/L Not Detected
PFOS 4/3/2024 <0.004 µg/L 0.004 µg/L Not Detected
PFNA 4/3/2024 <0.004 µg/L 0.004 µg/L Not Detected
PFHxS 4/3/2024 <0.003 µg/L 0.003 µg/L Not Detected
PFHxA 4/3/2024 <0.003 µg/L 0.003 µg/L Not Detected
PFPeA 4/3/2024 <0.003 µg/L 0.003 µg/L Not Detected
PFTA 4/3/2024 <0.008 µg/L 0.008 µg/L Not Detected
PFTrDA 4/3/2024 <0.007 µg/L 0.007 µg/L Not Detected
NEtFOSAA 4/3/2024 <0.005 µg/L 0.005 µg/L Not Detected
NMeFOSAA 4/3/2024 <0.006 µg/L 0.006 µg/L Not Detected
PFEESA 4/3/2024 <0.003 µg/L 0.003 µg/L Not Detected

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 ATCHISON, CITY OF.

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 KS2000506 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
2024 Lead and Copper Rule MR 2 SDWIS / KS2000506 / 5000
2023 Consumer Confidence Rule Other 4 SDWIS / KS2000506 / 7000
2020 Public Notice Other 4 SDWIS / KS2000506 / 7500
2019 Interim Enhanced Surface Water Treatment Rule TT 32 SDWIS / KS2000506 / 0300
2019 Bromate MR 4 SDWIS / KS2000506 / 1011
2018 Total Haloacetic Acids (HAA5) MR 4 SDWIS / KS2000506 / 2456
2018 TTHM MR 4 SDWIS / KS2000506 / 2950
2015 CARBON, TOTAL TT 66 SDWIS / KS2000506 / 2920
2011 Total Haloacetic Acids (HAA5) MCL 24 SDWIS / KS2000506 / 2456
2011 TTHM MCL 18 SDWIS / KS2000506 / 2950
2008 CARBON, TOTAL MR 8 SDWIS / KS2000506 / 2920
2002 Surface Water Treatment Rule MR 14 SDWIS / KS2000506 / 0200
2002 Interim Enhanced Surface Water Treatment Rule MR 2 SDWIS / KS2000506 / 0300
2001 Surface Water Treatment Rule TT 19 SDWIS / KS2000506 / 0200
1996 Atrazine MCL 4 SDWIS / KS2000506 / 2050

How ATCHISON, CITY OF Compares

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

Metric ATCHISON, CITY OF Kansas avg Federal benchmark
Total violations 216 88.1 SDWA compliance — any non-zero count is a recorded breach
Health-based violations 163 34.9 Indicates a contaminant exceeded a federal MCL
PFAS detection 1 compound 86.4% EPA final rule (2024): PFOA/PFOS MCL = 4.0 ppt
Population served 10,694 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
Nitrate (as N) 10 mg/L Acute health risk for infants

Frequently Asked Questions

Is ATCHISON, CITY OF water safe to drink? ▼
ATCHISON, CITY OF (PWS ID: KS2000506) has 216 recorded violations in the EPA SDWIS database. PFAS contamination has been detected in UCMR5 testing, with 1 PFAS compound found. This system serves 10,694 people using Surface Water sources.
How many people does ATCHISON, CITY OF serve? ▼
ATCHISON, CITY OF serves 10,694 people in ATCHISON, Kansas. It is a Local-owned system using Surface Water water sources with 4,637 service connections.
What type of violations does ATCHISON, CITY OF have? ▼
ATCHISON, CITY OF has 216 total violations: 163 health-based violations (MCL exceedances or treatment failures), 38 monitoring/reporting violations, and 117 treatment technique violations. Health-based violations indicate contaminant levels exceeded EPA safe limits.
Has PFAS been detected in ATCHISON, CITY OF water? ▼
Yes. UCMR5 testing detected 1 PFAS compound in ATCHISON, CITY OF's water supply: lithium. PFAS are persistent "forever chemicals" that do not break down in the environment.
What water source does ATCHISON, CITY OF use? ▼
ATCHISON, CITY OF 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.

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Data Sources: EPA Safe Drinking Water Information System (SDWIS), Q4 2025. PFAS data from EPA UCMR5 monitoring program (2023-2025). This data is provided for informational purposes only.

Read our methodology — how this data is sourced, computed, and verified.

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Data sourced from $official public datasets. See our methodology for details. Retrieved and formatted by Kiznis Studio Editorial