PlainWater
States → Michigan

Community Water System · PWS MI0003520

Kalamazoo

Operator location Kalamazoo, Michigan - 57% of 28 violations are health-based (upper-third health share (> 23%)); groundwater source; 192,992 served per SDWIS.

192,992
People served (this PWS)
28
EPA violations (this PWS)
16
Health-based (this PWS)
5 PFAS
UCMR5 (this PWS)
Follow published updates (RSS)

Kalamazoo standing, mid SDWIS violation third

57% of 28 recorded violations are health-based - upper-third health share (> 23%). Corpus terciles use 29,740 systems serving 500+ (the sitemap cohort). Health-based share 57% is upper-third health share (> 23%). UCMR5: upper-third PFAS panel (> 4 compounds). Population rank #222 of 29,740 among systems serving 500+.

The verdict

Kalamazoo lands in the middle third by violation volume (28), large enough for peer comparisons without matching the fleet's heaviest ledgers. Population served is large (192,992; larger served population (> 3,309)), so household exposure scale sits behind the violation mix. Health-based share is 57% - most of this ledger is MCL or treatment-technique exceedance. UCMR5 detected 5 PFAS compounds (upper-third PFAS panel (> 4 compounds)).

#222 of 29,740
Population · /systems
#4 of 1,375
Population · MI
28
Total EPA violations on record
57%
Health-based (MCL / treatment failure)

Population ordinals match the sitemap cohort (systems serving 500+, population_served DESC). See methodology · corpus placement.

PFAS Detected

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

System Details

System Type
Community
Owner Type
Local
Connections
41,411
County
Kalamazoo
School/Daycare
No
MCL Violations
0
Monitoring Violations
6
Treatment Tech Violations
16

Violation History

Contaminant violations recorded by EPA.

Contaminant Category Count Latest
Lead and Copper Rule TT 16 2019
Gross Alpha, Excl. Radon and U MR 4 2015
Nitrate-Nitrite MR 2 1994

Violation Count vs. the National Corpus

Kalamazoo has 28 recorded EPA violations, 40% of the 29,740 public water systems serving 500+ people nationwide carry fewer, and 59% carry more. 57% of this system's own violations are health-based (16 of 28), and it ranks #222 of 29,740 by population served among that same cohort.

EPA violations vs. the national water-system corpus

Public water systems serving 500+ people (EPA SDWIS)

28 Lower than most fewer violations than 59% of 29,740 water systems

the national water-system corpus, bucketed by value

Each bar is a band; taller bars hold more water systems. The dashed line + filled bar mark this entry. Hover or tap any bar for its full count and share, and where it sits relative to this entry.

Source EPA SDWIS · 2026-05-15

PFAS Testing Results (UCMR5)

Results from EPA's Fifth Unregulated Contaminant Monitoring Rule. 18 of 754 samples detected PFAS.

Contaminant Date Result MRL Status
PFUnA 9/27/2023 <2.00 ppt 2.00 ppt Not Detected
11Cl-PF3OUdS 9/27/2023 <5.00 ppt 5.00 ppt Not Detected
4:2 FTS 9/27/2023 <3.00 ppt 3.00 ppt Not Detected
PFHpS 9/27/2023 <3.00 ppt 3.00 ppt Not Detected
PFPeS 9/27/2023 <4.00 ppt 4.00 ppt Not Detected
NFDHA 9/27/2023 <20.00 ppt 20.00 ppt Not Detected
PFEESA 9/27/2023 <3.00 ppt 3.00 ppt Not Detected
PFMBA 9/27/2023 <3.00 ppt 3.00 ppt Not Detected
PFPeA 9/27/2023 <3.00 ppt 3.00 ppt Not Detected
PFMPA 9/27/2023 <4.00 ppt 4.00 ppt Not Detected
8:2 FTS 9/27/2023 <5.00 ppt 5.00 ppt Not Detected
6:2 FTS 9/27/2023 <5.00 ppt 5.00 ppt Not Detected
PFBA 9/27/2023 <5.00 ppt 5.00 ppt Not Detected
HFPO-DA 9/27/2023 <5.00 ppt 5.00 ppt Not Detected
PFDoA 9/27/2023 <3.00 ppt 3.00 ppt Not Detected
9Cl-PF3ONS 9/27/2023 <2.00 ppt 2.00 ppt Not Detected
PFHxA 9/27/2023 <3.00 ppt 3.00 ppt Not Detected
PFDA 9/27/2023 <3.00 ppt 3.00 ppt Not Detected
PFOA 9/27/2023 <4.00 ppt 4.00 ppt Not Detected
PFOS 9/27/2023 <4.00 ppt 4.00 ppt Not Detected
PFNA 9/27/2023 <4.00 ppt 4.00 ppt Not Detected
PFHxS 9/27/2023 <3.00 ppt 3.00 ppt Not Detected
PFHpA 9/27/2023 <3.00 ppt 3.00 ppt Not Detected
PFBS 9/27/2023 4.60 ppt 3.00 ppt Detected
ADONA 9/27/2023 <3.00 ppt 3.00 ppt Not Detected
4:2 FTS 9/27/2023 <3.00 ppt 3.00 ppt Not Detected
ADONA 9/27/2023 <3.00 ppt 3.00 ppt Not Detected
HFPO-DA 9/27/2023 <5.00 ppt 5.00 ppt Not Detected
PFBA 9/27/2023 <5.00 ppt 5.00 ppt Not Detected
6:2 FTS 9/27/2023 <5.00 ppt 5.00 ppt Not Detected
8:2 FTS 9/27/2023 <5.00 ppt 5.00 ppt Not Detected
PFMPA 9/27/2023 <4.00 ppt 4.00 ppt Not Detected
PFPeA 9/27/2023 3.50 ppt 3.00 ppt Detected
PFMBA 9/27/2023 <3.00 ppt 3.00 ppt Not Detected
11Cl-PF3OUdS 9/27/2023 <5.00 ppt 5.00 ppt Not Detected
NFDHA 9/27/2023 <20.00 ppt 20.00 ppt Not Detected
PFHxS 9/27/2023 3.70 ppt 3.00 ppt Detected
PFPeS 9/27/2023 <4.00 ppt 4.00 ppt Not Detected
PFEESA 9/27/2023 <3.00 ppt 3.00 ppt Not Detected
PFHxA 9/27/2023 <3.00 ppt 3.00 ppt Not Detected
PFDoA 9/27/2023 <3.00 ppt 3.00 ppt Not Detected
PFDA 9/27/2023 <3.00 ppt 3.00 ppt Not Detected
PFOA 9/27/2023 <4.00 ppt 4.00 ppt Not Detected
PFNA 9/27/2023 <4.00 ppt 4.00 ppt Not Detected
PFHpA 9/27/2023 <3.00 ppt 3.00 ppt Not Detected
PFBS 9/27/2023 7.60 ppt 3.00 ppt Detected
PFHpS 9/27/2023 <3.00 ppt 3.00 ppt Not Detected
9Cl-PF3ONS 9/27/2023 <2.00 ppt 2.00 ppt Not Detected
PFOS 9/27/2023 <4.00 ppt 4.00 ppt Not Detected
PFUnA 9/27/2023 <2.00 ppt 2.00 ppt Not Detected

Health-based violations on Kalamazoo

16 health-based rows in the tables above map to MCL or treatment-technique exceedances, verify each contaminant code on the federal SDWIS report for MI0003520.

EPA SDWIS · PWS MI0003520 MI primacy agency

Sources: EPA SDWIS · Michigan EGLE, Drinking Water and Environmental Health Division

Nationwide peers

28 violations · 192,992 served: nearest cross-state SDWIS matches.

Cross-state systems near this violation count

Nearest cross-state community systems (500+ served) by total SDWIS violations on record.

4 peers

Cross-state systems with similar served population

Nearest cross-state systems by EPA SDWIS population_served (same 500+ sitemap gate).

4 peers

What to do with Kalamazoo

Use this system's EPA-reported record as a starting filter, not a final verdict.

  • See how every tracked system in Michigan compares on the same EPA violation measures. Michigan systems
  • Check whether PFAS was detected at this system under UCMR5 testing. PFAS guide
  • Find and compare another public water system by name or PWSID. Search systems

EPA SDWIS and UCMR5 figures are informational only, not a substitute for a certified lab test of your own tap water.

Data sourced from EPA SDWIS and UCMR5 PFAS monitoring data. See our methodology for details. Retrieved and formatted by PlainWater