Updated 2026-09-16
County water report

Kosciusko County Water Quality

Kosciusko County, Indiana: one city report built from EPA and utility records. A county has many suppliers; each city shows the system that serves it.

Across the county's systems

Highest result for each contaminant

One row per contaminant: the highest result any system in the county reported, against its limit. Open a row for the systems behind it.

Lead (90th percentile)INDIANA AMERICAN WATER - WARSAW15 µg/L federal action level · US EPA2 µg/L
Perfluorobutanesulfonic acid (PFBS)INDIANA AMERICAN WATER - WARSAW2,000 ng/L EPA health advisory (screening, not a legal limit) · US EPA5.1 ng/L
Perfluoropentanoic acid (PFPeA)INDIANA AMERICAN WATER - WARSAWNo federal or state limit; shown for transparency5.2 ng/L
28 substances tested, none detected in this systemShow

Tested in this system: INDIANA AMERICAN WATER - WARSAW

  • 11-Chloroeicosafluoro-3-oxaundecane-1-sulfonic acid (11Cl-PF3OUdS)
  • 1H, 1H, 2H, 2H-perfluorodecane sulfonic acid (8:2 FTS)
  • 1H, 1H, 2H, 2H-perfluorohexane sulfonic acid (4:2 FTS)
  • 1H, 1H, 2H, 2H-perfluorooctane sulfonic acid (6:2 FTS)
  • 4,8-Dioxa-3H-perfluorononanoic acid (ADONA)
  • 9-Chlorohexadecafluoro-3-oxanone-1-sulfonic acid (9Cl-PF3ONS)
  • Hexafluoropropylene oxide dimer acid (HFPO-DA) (GenX chemicals)
  • Lithium
  • N-ethyl perfluorooctanesulfonamidoacetic acid (NEtFOSAA)
  • N-methyl perfluorooctanesulfonamidoacetic acid (NMeFOSAA)
  • Nonafluoro-3,6-dioxaheptanoic acid (NFDHA)
  • Perfluoro (2-ethoxyethane) sulfonic acid (PFEESA)
  • Perfluoro-3-methoxypropanoic acid (PFMPA)
  • Perfluoro-4-methoxybutanoic acid (PFMBA)
  • Perfluorobutanoic acid (PFBA)
  • Perfluorodecanoic acid (PFDA)
  • Perfluorododecanoic acid (PFDoA)
  • Perfluoroheptanesulfonic acid (PFHpS)
  • Perfluoroheptanoic acid (PFHpA)
  • Perfluorohexanesulfonic acid (PFHxS)
  • Perfluorohexanoic acid (PFHxA)
  • Perfluorononanoic acid (PFNA)
  • Perfluorooctanesulfonic acid (PFOS)
  • Perfluorooctanoic acid (PFOA)
  • Perfluoropentanesulfonic acid (PFPeS)
  • Perfluorotetradecanoic acid (PFTA)
  • Perfluorotridecanoic acid (PFTrDA)
  • Perfluoroundecanoic acid (PFUnA)
1 city

Cities ranked by the records

  • 1
    WarsawINDIANA AMERICAN WATER - WARSAW
    PFAS detected, within limitLead below action level
    Open city report →
Showing 1 of 1 cities · scores are system-level, not tap tests

Ranked by the Purity Score of each city's main water system, highest first. Scores belong to water systems; there is no county score. The score is computed only from contaminants measured in the published EPA record, so this ranks the record, not which city's water is safest. How the score works.

PFAS in Kosciusko CountyPFAS detected in 1 of 1 city; none above a federal limit
4.0 ng/L federal MCL · PFOS, ng/LPFAS in Indiana
Lead

0of 1 city above the 15 µg/L action level

Based on each system's 90th-percentile result. Lead from household plumbing isn't in this record.

Lead in Indiana
Who supplies the county

Largest water systems

  1. WarsawINDIANA AMERICAN WATER - WARSAW · IN5243030
    13,835 served
Questions

Frequently asked

How does Kosciusko County tap water compare across cities?

PurityMap ranks 1 city in Kosciusko County by the Purity Score of each city's main water system, computed only from contaminants measured in the published EPA record. Scores belong to water systems, not to cities. The highest published score is Warsaw's main water system: INDIANA AMERICAN WATER - WARSAW · PWSID IN5243030 · Purity Score 98 (Excellent) · Confidence: moderate · Assessed at the water-system level. The ranking compares the records, not which city's water is safest, and your own tap can differ with household plumbing.

How many Kosciusko County cities have PFAS above the federal limit?

None of the 1 Kosciusko County cities on record had a regulated PFAS above the 2024 federal limit in EPA's UCMR 5 testing. PFAS were detected below the limit in 1.

Is there lead in Kosciusko County tap water?

Utilities report lead as a 90th-percentile result from home taps. 1 of 1 Kosciusko County cities reported a value above zero, and none was above the 15 µg/L federal action level. Lead usually comes from a building's own pipes and fixtures, so only a test at your tap tells you what you drink.