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Not health advice. Contact your local water utility for concerns.
Data from EPA Water Quality Reports. For official information, contact your water utility or health department.
EPA records for INDIANA AMERICAN WATER - KOKOMO • Updated September 2026
Grade A — based on EPA compliance records, lead testing and PFAS monitoring
INDIANA AMERICAN WATER - KOKOMO has a clean recent record: no health-based violations in the last five years and no lead, PFAS or historical monitoring result that costs it more than a few points.
Yes — by EPA's records, Kokomo's tap water earns a A: no health-based violations in five years, lead at 2 ppb (90th percentile) and no PFAS detected. Lead from home plumbing is the main remaining risk.
By EPA's records, yes. INDIANA AMERICAN WATER - KOKOMO earns a A: no health-based violations in the last five years, a lead 90th-percentile result of 2 ppb, and no PFAS detected in UCMR5 sampling. Lead from your own plumbing is the main risk city data cannot see.
INDIANA AMERICAN WATER - KOKOMO's most recent Lead and Copper Rule result (2022-01-01 to 2024-12-31) was 2 ppb at the 90th percentile, below EPA's 15 ppb action level. Because lead usually comes from service lines and household plumbing, homes built before 1986 should still test at the tap.
No. None of the 174 UCMR5 PFAS results for INDIANA AMERICAN WATER - KOKOMO (2024-11-12 to 2025-08-04) were at or above the reporting limit of roughly 3–5 ppt.
No. EPA's SDWIS shows no violations of any kind for INDIANA AMERICAN WATER - KOKOMO since 2016.
INDIANA AMERICAN WATER - KOKOMO reports surface water as its primary source and serves about 59,313 people (EPA PWSID IN5234007).
Not on the strength of EPA's data for INDIANA AMERICAN WATER - KOKOMO. A filter still helps with taste and with lead from your own plumbing, which no city-level test can measure.
Want to know what's really in your Kokomo tap water?
EPA data describes water leaving the plant — a certified mail-in lab test shows what reaches your own faucet, including lead from household plumbing.
Tap Score certified lab · Amazon. We may earn a commission, at no extra cost to you.
INDIANA AMERICAN WATER - KOKOMO · SDWIS records since 2016 · 5-year window starts 2021-09-07
EPA records no health-based violations for this system in the last five years.
No violations of any kind on file since 2016.
Source: ECHO SDWA bulk download (SDWA_VIOLATIONS_ENFORCEMENT.csv, SDWIS 2026Q2, file dated 2026-07-09, fetched 2026-09-06)
EPA Lead and Copper Rule 90th-percentile results reported by INDIANA AMERICAN WATER - KOKOMO
Well below the 15 ppb action level. In the most recent monitoring period on file (2022-01-01 to 2024-12-31), 90% of the homes INDIANA AMERICAN WATER - KOKOMO sampled had lead at or below 2 ppb.
EPA's action level is 15 ppb (dropping to 10 ppb under the 2024 Lead and Copper Rule Improvements). There is no safe level of lead; the 90th-percentile figure describes the system, not your tap — homes with lead service lines or pre-1986 plumbing can be higher.
| Monitoring period | Lead 90th percentile | vs 15 ppb action level |
|---|---|---|
| 2022-01-01 → 2024-12-31 | 2 ppb | Well below the 15 ppb action level |
| 2019-01-01 → 2021-12-31 | 2 ppb | Well below the 15 ppb action level |
| 2016-01-01 → 2018-12-31 | 2 ppb | Well below the 15 ppb action level |
| 2013-01-01 → 2015-12-31 | 3 ppb | Well below the 15 ppb action level |
| 2012-01-01 → 2014-12-31 | 2 ppb | Well below the 15 ppb action level |
| 2009-01-01 → 2009-12-31 | 2 ppb | Well below the 15 ppb action level |
| 2008-01-01 → 2008-12-31 | 2 ppb | Well below the 15 ppb action level |
| 2007-01-01 → 2007-12-31 | 4 ppb | Well below the 15 ppb action level |
| 2004-01-01 → 2006-12-31 | 3 ppb | Well below the 15 ppb action level |
| 2001-01-01 → 2003-12-31 | 3 ppb | Well below the 15 ppb action level |
| 1998-01-01 → 1998-12-31 | 4 ppb | Well below the 15 ppb action level |
| 1997-01-01 → 1997-12-31 | 6.9 ppb | Below the action level, but detectable |
Source: ECHO SDWA bulk download (SDWA_LCR_SAMPLES.csv, SDWIS 2026Q2, file dated 2026-07-09, fetched 2026-09-06)
EPA UCMR5 monitoring, 2024-11-12 to 2025-08-04 · 174 PFAS results at entry points to the distribution system
No PFAS detected. None of the 174 UCMR5 PFAS results for INDIANA AMERICAN WATER - KOKOMO were at or above the method reporting limit. Reporting limits are about 3–5 ppt, so “not detected” means below that threshold — not proven zero.
| Compound | Detects / samples | Max (ppt) | Reporting limit | EPA MCL |
|---|---|---|---|---|
| PFOA | 0 / 6 | < 4 | 4 ppt | 4 ppt |
| PFOS | 0 / 6 | < 4 | 4 ppt | 4 ppt |
| PFHxS | 0 / 6 | < 3 | 3 ppt | 10 ppt |
| PFNA | 0 / 6 | < 4 | 4 ppt | 10 ppt |
| HFPO-DA | 0 / 6 | < 5 | 5 ppt | 10 ppt |
| PFBS | 0 / 6 | < 3 | 3 ppt | hazard index only |
“< 4 ppt” means below the laboratory reporting limit, not zero. ppt = parts per trillion (ng/L). Results are for finished water leaving the treatment plant.
Lithium (also monitored under UCMR5, not a PFAS): detected in 5 of 6 samples, max 14.5 µg/L. There is no federal limit for lithium.
What PFAS are and how to remove them →
Source: UCMR5 occurrence data, EPA Data Summary July 2026 (UCMR5_All.txt)
EPA Six-Year Review 4 compliance samples for INDIANA AMERICAN WATER - KOKOMO · finished water only · dated data, released 2024
These are the regulated-contaminant samples INDIANA AMERICAN WATER - KOKOMO reported to its state between 2012 and 2019 — the most recent nationwide sample-level dataset EPA has published. Total trihalomethanes (TTHM), Haloacetic acids (HAA5) are flagged below; the status column explains why. Treat this as history, not today's tap water.
| Contaminant | Samples | Average | Max | EPA limit | Status |
|---|---|---|---|---|---|
| Arsenic | 111 detects | 0.273 µg/L | 3 µg/L | 10 µg/LMCL | Within MCL |
| Nitrate (as N) | 169 detects | 1.177 mg/L | 4.36 mg/L | 10 mg/LMCL | Within MCL |
| Fluoride | 11 | 0.751 mg/L | 0.99 mg/L | 4 mg/LMCL | Within MCL |
| Chromium (total) | 110 detects | 0 µg/L | ND | 100 µg/LMCL | Not detected |
| Uranium (combined) | 20 detects | 0 µg/L | ND | 30 µg/LMCL | Not detected |
| Radium-226/228 | 20 detects | 0 pCi/L | ND | 5 pCi/LMCL | Not detected |
| Gross alpha | 20 detects | 0 pCi/L | ND | 15 pCi/LMCL | Not detected |
| Total trihalomethanes (TTHM) | 252 | 51.107 µg/L | 110.2 µg/L | 80 µg/LMCL (LRAA) | 30 single samples over MCL; average within limit |
| Haloacetic acids (HAA5) | 252 | 18.948 µg/L | 66.4 µg/L | 60 µg/LMCL (LRAA) | 1 single sample over MCL; average within limit |
| Lead (tap samples) | 409 detects | 0.65 µg/L | 7 µg/L | 15 µg/Laction level (90th percentile) | Reported, not scored (compliance is on the 90th percentile) |
| Copper (tap samples) | 4039 detects | 556.4 µg/L | 2849 µg/L | 1300 µg/Laction level (90th percentile) | Reported, not scored (compliance is on the 90th percentile) |
Averages count non-detects as zero. TTHM and HAA5 limits are locational running annual averages, so a single high sample is not a violation — we grade those on the average only. Lead and copper rows are individual tap samples and are shown for context; compliance (and our score) uses the 90th-percentile result above. LRAA = locational running annual average; ND = not detected.
Source: SYR4 Six-Year Review compliance monitoring data 2012–2019 (released 2024-03)
INDIANA AMERICAN WATER - KOKOMO · 24,605 service lines inventoried · Q2 2026 snapshot
INDIANA AMERICAN WATER - KOKOMO reports 172 service lines that are lead or galvanized-requiring-replacement (0.7% of the lines it has inventoried), plus 12,448 lines whose material is still unknown. A lead service line is the pipe between the water main and a building, so treated water can pick up lead after it leaves the plant — which city-level testing does not capture. Under EPA's Lead and Copper Rule Improvements, utilities must replace lead lines within 10 years starting in 2027.
Source: EPA SDWIS Service Line Inventory (Q2 2026) · PWS ID IN5234007 · See all Indiana lead service lines. We may earn a commission from filters and test kits, at no extra cost to you.
Surface-water systems draw from rivers, lakes or reservoirs and must filter and disinfect, which is why disinfection byproducts (TTHM, HAA5) are the readings to watch.
How to test your tap water and the treatment options that actually fit Kokomo homes
The most reliable way to know what is actually coming out of your tap is a certified mail-in lab test. City-wide EPA data (like the report above) reflects the water leaving the treatment plant, but contaminants such as lead and copper can be picked up from your own service line and household plumbing — so the water at your Kokomo faucet can differ from the system average. A state-certified lab measures dozens of contaminants at once with results you can trust; you can also find one near you through the EPA's certified-lab list at epa.gov/dwlabcert. Hardware-store test strips are cheaper and instant, but they only screen for a few basics (chlorine, hardness, pH, and a rough lead pass/fail) and are far less accurate — treat them as a first look, not a diagnosis.
Match the treatment to what your test finds. Reverse osmosis (RO) removes the widest range of contaminants — lead, arsenic, nitrate, PFAS, and dissolved solids — which makes an under-sink reverse osmosis system the most thorough choice for Kokomo households with heavy-metal or PFAS concerns. If your main issue is taste, odor, or chlorine, an activated carbon filter (pitcher, faucet, or under-sink) is simpler and cheaper and handles chlorine and many organic compounds well, though carbon alone does not remove arsenic, nitrate, or most PFAS. NSF-certified pitchers rated for lead reduction are the easiest way to start today while you decide on a permanent setup.
We may earn a commission from testing kits and filters purchased through these links, at no extra cost to you.
Kokomo ranks #1 of 32 graded Indiana cities.
By EPA's records, yes. INDIANA AMERICAN WATER - KOKOMO earns a A: no health-based violations in the last five years, a lead 90th-percentile result of 2 ppb, and no PFAS detected in UCMR5 sampling. Lead from your own plumbing is the main risk city data cannot see.
INDIANA AMERICAN WATER - KOKOMO's most recent Lead and Copper Rule result (2022-01-01 to 2024-12-31) was 2 ppb at the 90th percentile, below EPA's 15 ppb action level. Because lead usually comes from service lines and household plumbing, homes built before 1986 should still test at the tap.
No. None of the 174 UCMR5 PFAS results for INDIANA AMERICAN WATER - KOKOMO (2024-11-12 to 2025-08-04) were at or above the reporting limit of roughly 3–5 ppt.
No. EPA's SDWIS shows no violations of any kind for INDIANA AMERICAN WATER - KOKOMO since 2016.
INDIANA AMERICAN WATER - KOKOMO reports surface water as its primary source and serves about 59,313 people (EPA PWSID IN5234007).
Not on the strength of EPA's data for INDIANA AMERICAN WATER - KOKOMO. A filter still helps with taste and with lead from your own plumbing, which no city-level test can measure.
Even with good water quality, a filter removes trace contaminants and improves taste.
For Everyday Peace of Mind
Brita Elite Pitcher
Your water already tests well — a simple carbon filter improves taste and catches trace contaminants.
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