Updated 2026-10-15
County water report

Bartholomew County Water Quality

Bartholomew 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)COLUMBUS MUNICIPAL UTILITY15 µg/L federal action level · US EPA2.74 µg/L
Perfluorobutanesulfonic acid (PFBS)COLUMBUS MUNICIPAL UTILITY2,000 ng/L EPA health advisory (screening, not a legal limit) · US EPA9.6 ng/L
Perfluorohexanoic acid (PFHxA)COLUMBUS MUNICIPAL UTILITY400,000 ng/L Michigan EGLE state MCL (strictest US state) · Michigan EGLE8.3 ng/L
Perfluorobutanoic acid (PFBA)COLUMBUS MUNICIPAL UTILITYNo federal or state limit; shown for transparency9.2 ng/L
Perfluoropentanoic acid (PFPeA)COLUMBUS MUNICIPAL UTILITYNo federal or state limit; shown for transparency16.3 ng/L
26 substances tested, none detected in this systemShow

Tested in this system: COLUMBUS MUNICIPAL UTILITY

  • 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)
  • Perfluorodecanoic acid (PFDA)
  • Perfluorododecanoic acid (PFDoA)
  • Perfluoroheptanesulfonic acid (PFHpS)
  • Perfluoroheptanoic acid (PFHpA)
  • Perfluorohexanesulfonic acid (PFHxS)
  • 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
    ColumbusCOLUMBUS MUNICIPAL UTILITY
    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 Bartholomew CountyPFAS detected in 1 of 1 city; none had a sample above a 2024 EPA 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. ColumbusCOLUMBUS MUNICIPAL UTILITY · IN5203002
    51,122 served
Questions

Frequently asked

How does Bartholomew County tap water compare across cities?

PurityMap ranks 1 city in Bartholomew 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 Columbus's main water system: COLUMBUS MUNICIPAL UTILITY · PWSID IN5203002 · Purity Score 97 (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 Bartholomew County cities had a PFAS sample above a 2024 EPA limit?

None of the 1 Bartholomew County city report had a PFAS sample above a 2024 EPA limit in EPA's UCMR 5 testing. PFAS were detected below the limit in 1.

Is there lead in Bartholomew County tap water?

Utilities report lead as a 90th-percentile result from home taps. 1 of 1 Bartholomew 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.

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