Hendricks County Water Quality: 3 Cities Ranked by the Records
Hendricks County, Indiana: 3 city reports built from EPA and utility records. A county has many suppliers; each city shows the system that serves it.
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.
LithiumDetected in 1 system of 3 tested10 µg/L EPA health reference level (screening, not a legal limit) · US EPAHighest9.9 µg/L
- BROWNSBURG WATER WORKS9.9 µg/LSample date: 2023-03-15 to 2023-12-04
- DANVILLE WATER WORKSNot detected · below 9.0 µg/L lab reporting limitSample date: 2024-04-09 to 2025-12-02
- PLAINFIELD WATER WORKSNot detected · below 9.0 µg/L lab reporting limitSample date: 2025-03-25 to 2025-09-10
Lead (90th percentile)Detected in 2 systems of 3 tested15 µg/L federal action level · US EPAHighest2.3 µg/L
- DANVILLE WATER WORKS2.3 µg/LMonitoring period: 2026–2026 (still open)
- PLAINFIELD WATER WORKS1.14 µg/LMonitoring period: 2024–2026 (still open)
- BROWNSBURG WATER WORKSNot detectedMonitoring period: 2023–2025
Perfluorobutanesulfonic acid (PFBS)Detected in 1 system of 3 tested2,000 ng/L EPA health advisory (screening, not a legal limit) · US EPAHighest3.8 ng/L
- PLAINFIELD WATER WORKS3.8 ng/LSample date: 2025-03-25 to 2025-10-15
- BROWNSBURG WATER WORKSNot detected · below 3.0 ng/L lab reporting limitSample date: 2023-03-15 to 2024-07-31
- DANVILLE WATER WORKSNot detected · below 3.0 ng/L lab reporting limitSample date: 2024-04-09 to 2025-12-02
Perfluorohexanoic acid (PFHxA)Detected in 2 systems of 3 tested400,000 ng/L Michigan EGLE state MCL (strictest US state) · Michigan EGLEHighest3.7 ng/L
- PLAINFIELD WATER WORKS3.7 ng/LSample date: 2025-03-25 to 2025-10-15
- DANVILLE WATER WORKS3 ng/LSample date: 2024-04-09 to 2025-12-02
- BROWNSBURG WATER WORKSNot detected · below 3.0 ng/L lab reporting limitSample date: 2023-03-15 to 2024-07-31
Perfluoropentanoic acid (PFPeA)Detected in 3 systemsNo federal or state limit; shown for transparencyHighest7.1 ng/L
- PLAINFIELD WATER WORKS7.1 ng/LSample date: 2025-03-25 to 2025-10-15
- DANVILLE WATER WORKS3.8 ng/LSample date: 2024-04-09 to 2025-12-02
- BROWNSBURG WATER WORKS3.5 ng/LSample date: 2023-03-15 to 2024-07-31
26 PFAS tested, none detected in any systemShow
Tested in these 3 systems: BROWNSBURG WATER WORKS, DANVILLE WATER WORKS, PLAINFIELD WATER WORKS
- 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)
- 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)
- Perfluorononanoic acid (PFNA)
- Perfluorooctanesulfonic acid (PFOS)
- Perfluorooctanoic acid (PFOA)
- Perfluoropentanesulfonic acid (PFPeS)
- Perfluorotetradecanoic acid (PFTA)
- Perfluorotridecanoic acid (PFTrDA)
- Perfluoroundecanoic acid (PFUnA)
Cities ranked by the records
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.
0of 3 cities 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 IndianaLargest water systems
- PlainfieldPLAINFIELD WATER WORKS · IN523202034,477 served
- BrownsburgBROWNSBURG WATER WORKS · IN523200231,250 served
- DanvilleDANVILLE WATER WORKS · IN523200410,500 served
Frequently asked
How does Hendricks County tap water compare across cities?
PurityMap ranks 3 cities in Hendricks 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 Brownsburg's main water system: BROWNSBURG WATER WORKS · PWSID IN5232002 · Purity Score 100 (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 Hendricks County cities had a PFAS sample above a 2024 EPA limit?
None of the 3 Hendricks County city reports had a PFAS sample above a 2024 EPA limit in EPA's UCMR 5 testing. PFAS were detected below the limit in 3.
Is there lead in Hendricks County tap water?
Utilities report lead as a 90th-percentile result from home taps. 2 of 3 Hendricks 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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