EPA UCMR 5 Data · Indiana

PFAS Drinking-Water Monitoring Results in Indiana

This page summarizes EPA Fifth Unregulated Contaminant Monitoring Rule (UCMR 5, 2023–2025) drinking-water monitoring records linked to ZIP codes in Indiana, as processed for the PFAS Estimator national dataset. Data updated: July 2026.

33.1% of Indiana ZIP codes in this dataset (281 total)
had at least one regulated PFAS compound detected at or above its applicable EPA threshold (93 of 281 ZIP codes). Of those, 35 (37.6%) had more than one compound at or above threshold. This dataset includes only ZIP codes with at least one recorded PFAS detection; ZIP codes where all compounds returned non-detect are not represented.

Compounds detected in Indiana

Detection prevalence, exceedance, and concentration by compound, Indiana ZIP codes in the EPA UCMR 5 analytic dataset.
Compound Applicable threshold ZIP codes detected At/above threshold Mean detected Maximum detected
PFOA0.004 µg/L (MCL)79 (28.1% of state)79 (100.0%) — all detections at/above limit by construction0.0083 µg/L0.0145 µg/L
PFOS0.004 µg/L (MCL)33 (11.7% of state)33 (100.0%) — all detections at/above limit by construction0.0062 µg/L0.0105 µg/L
PFHxS0.01 µg/L (MCL)29 (10.3% of state)19 (65.5% of detected)0.0192 µg/L0.0256 µg/L
HFPO-DA0.01 µg/L (MCL)8 (2.8% of state)0 (0.0% of detected)0.0053 µg/L0.0053 µg/L
PFBS2.0 µg/L (HI reference)143 (50.9% of state)not calculated¹0.0051 µg/L0.0174 µg/L
Lithium7.36 µg/L (reference, not a regulatory limit)84 (29.9% of state)84 (100.0%) at/above reference35.7926 µg/L185.0 µg/L
PFPeA— (no federal limit)158 (56.2% of state)0.011 µg/L0.0397 µg/L
PFBA— (no federal limit)109 (38.8% of state)0.0098 µg/L0.0232 µg/L
PFHpA— (no federal limit)27 (9.6% of state)0.0067 µg/L0.0083 µg/L

ZIP codes in this dataset (Indiana)

281 ZIP codes with at least one recorded PFAS detection. Click a ZIP code to view its full compound-level results.

Per-ZIP-code detection summary for Indiana
ZIP code Compounds detected At/above threshold
460111Yes (1)
460131Yes (1)
460161Yes (1)
460324No
460331No
460361No
460373No
460384No
460403No
460523No
460553No
460602No
460624No
460711No
460741No
460752No
460773No
461062No
461073No
461102No
461124No
461133No
461182No
461221No
461233No
461313No
461403No
461423No
461434No
461516Yes (2)
461583No
461606Yes (2)
461633No
461646Yes (2)
461671No
461682No
461761No
461816Yes (2)
461833No
461842No
462013No
462023No
462033No
462043No
462053No
462063No
462083No
462143No
462163No
462173No
462183No
462193No
462203No
462213No
462223No
462243No
462253No
462263No
462274No
462283No
462293No
462313No
462343No
462353No
462363No
462373No
462393No
462403No
462413No
462493No
462503No
462513No
462543No
462563No
462593No
462603No
462683No
462783No
462801No
462823No
462853No
463031No
463072No
463101No
463111No
463411No
463501No
463561No
463731No
463921No
465145Yes (1)
465155Yes (1)
465165Yes (1)
465175Yes (1)
465262No
465271No
465281No
465307Yes (3)
465447Yes (3)
465455Yes (1)
465526Yes (2)
465546Yes (2)
465566Yes (2)
465615Yes (1)
465802No
465812No
465822No
465902No
466016Yes (2)
466136Yes (2)
466146Yes (2)
466156Yes (2)
466166Yes (2)
466176Yes (2)
466196Yes (2)
466246Yes (2)
466286Yes (2)
466346Yes (2)
466357Yes (3)
466376Yes (2)
466606Yes (2)
466806Yes (2)
467032No
467061No
467111No
467141No
467251No
467331No
467381No
467481No
467501No
467551No
467741No
467831No
467921No
467981No
468021No
468031No
468041No
468051No
468061No
468071No
468081No
468091No
468141No
468151No
468161No
468182No
468191No
468251No
468351No
468452No
469011No
469021No
469331No
469521No
469531No
469781No
469891No
469921No
470031No
470062No
470101No
470121No
470161No
470171No
470231No
470341No
470361No
470371No
470421No
470601No
471081No
471111Yes (1)
471121Yes (1)
471141Yes (1)
471151Yes (1)
471192Yes (1)
471202Yes (1)
471222Yes (1)
471242Yes (1)
471251No
471261Yes (1)
471301Yes (1)
471361Yes (1)
471371Yes (1)
471381Yes (1)
471401No
471411Yes (1)
471431Yes (1)
471611Yes (1)
471631Yes (1)
471641Yes (1)
471652No
471661Yes (1)
471672No
471701No
471721Yes (1)
471771Yes (1)
472017Yes (2)
472033No
472202Yes (2)
472231No
472241No
472292Yes (2)
472301No
472312Yes (1)
472356Yes (2)
472401No
472433Yes (2)
472502Yes (1)
472602Yes (2)
472631No
472642Yes (2)
472652No
472702Yes (2)
472742Yes (2)
472812Yes (2)
472821No
473021No
473031No
473041No
473051No
473061No
473481No
473711No
473831No
473901No
474487Yes (2)
474521No
474541No
474686Yes (2)
475201Yes (1)
475251Yes (1)
475451No
475461No
475511Yes (1)
475645Yes (1)
475741Yes (1)
475861Yes (1)
475901No
475911No
475985Yes (1)
476121No
476135Yes (1)
476204Yes (1)
476311No
476331No
476381No
476392Yes (1)
476405Yes (1)
476475Yes (1)
476482Yes (1)
476495Yes (1)
476605Yes (1)
476652Yes (1)
476702Yes (1)
477121No
477131No
477201No
477251No
478013Yes (1)
478023Yes (1)
478033Yes (1)
478043Yes (1)
478053Yes (1)
478074Yes (1)
478083Yes (1)
478093Yes (1)
478422No
478854Yes (1)
479011No
479021No
479031No
479041No
479051No
479065No
479074No
479091No
479332No
479781No

Methodology & limitations

Results are based on EPA UCMR 5 monitoring data (2023–2025), linked to ZIP codes via Public Water System Identifier. Non-detections are not present in this analytic dataset. For each compound and ZIP code, the highest observed concentration across the monitoring period is retained; this characterizes the upper bound of observed drinking-water concentrations, not a long-term average or an individual exposure estimate. A single water system may serve multiple ZIP codes, so the same monitoring record can appear for more than one ZIP in this table. ZIP-code assignment reflects water-system service area geography and does not establish individual household exposure. Private wells are not represented unless served by a monitored public water system. PFOA and PFOS are reported by detection prevalence because the UCMR 5 reporting limit equals their federal MCL. A full PFBS Hazard Index is not calculated because co-located, same-event multi-compound readings are not retained in this dataset. Lithium has no federal Maximum Contaminant Level; 7.36 µg/L is an evidence-based reference concentration from a prospective cohort study, not a regulatory threshold.

Related links

PFAS Estimator homepage & national ZIP lookup
Full national methodology, limitations, and dataset documentation
All states & territories index

Data from the EPA Unregulated Contaminant Monitoring Rule (UCMR 5), 2023–2025. Detection does not indicate a health risk. Not medical advice. Data updated: July 2026. · EPA Source