Carmel Water Department Water Quality (Indiana) – 2025 Report Results

We read 25 results from Carmel Water Department’s 2025 water quality report. No results over a legal limit; 7 above a health goal or guideline.

Serves about 90,434 people · Water system ID IN5229004 · Read the district’s 2025 report (opens in a new tab)

Open this district in the water lookupCompare with your own test results, see the district map and get matched filters.

Results from the 2025 report

Each number is copied from the district’s report and links to the page it’s printed on. Where the report lists several plants, wells or purchased water, the highest is shown.

Contaminant	Result	Health goal	Legal limit	What it means
Gross alpha (radioactivity)highest measured · range 0.1 to 5.1 · listed as a violation in the report · sampled 2021 · System wide · 2025 report, page 2	5.1 pCi/L	0 pCi/L	15 pCi/L	Above the health goalThe health goal is zero
Lead90th percentile of 30 homes tested, 0 over the action level · listed as a violation in the report · sampled 2023 · Customer taps · 2025 report, page 2	2.94 ppb	0.2 ppb	15 ppb (action level)	Above the health goal15x the health goal
PFOA (a PFAS)highest measured · range ND to 1.4 · sampled 2023 · UCMR5 samples · 2025 report, page 2	1.4 ppt	0.007 ppt	4 ppt from 2029	Above the health goal200x the health goal
Radium (combined 226 + 228)highest measured · range ND to 2.4 · listed as a violation in the report · sampled 2021 · System wide · 2025 report, page 2	2.4 pCi/L	0 pCi/L	5 pCi/L	Above the health goalThe health goal is zero
Radium-226highest measured · range ND to 1.6 · listed as a violation in the report · sampled 2021 · System wide · 2025 report, page 2	1.6 pCi/L	0.05 pCi/L	5 pCi/L	Above the health goal32x the health goal
Radium-228highest measured · listed as a violation in the report · sampled 2021 · System wide · 2025 report, page 2	0.8 pCi/L	0.02 pCi/L	5 pCi/L	Above the health goal42x the health goal
Total coliform bacteriahighest month · listed as a violation in the report · Distribution system · 2025 report, page 2	1.08 % positive	0 % positive	5 % positive	Above the health goalThe health goal is zero
Bariumhighest measured · range ND to 0.11 · listed as a violation in the report · System wide · 2025 report, page 2	0.11 ppm	2 ppm	2 ppm	Below the health goal
Chlorineaverage · range 0.52 to 1.46 · listed as a violation in the report · System wide · 2025 report, page 2	1.01 ppm	None set	4 ppm	Below the legal limit
Copper90th percentile of 30 homes tested, 0 over the action level · listed as a violation in the report · sampled 2023 · Customer taps · 2025 report, page 2	0.14 ppm	0.3 ppm	1.3 ppm (action level)	Below the health goal
Disinfection byproducts (HAA5)highest running annual average · range 11.9 to 20.8 · listed as a violation in the report · Sample site 13, highest of 4 sources · 2025 report, page 2	15 ppb	None set	60 ppb	Below the legal limit
Disinfection byproducts (TTHM)highest running annual average · range 25.9 to 46.9 · listed as a violation in the report · Sample site 13, highest of 4 sources · 2025 report, page 2	37 ppb	None set	80 ppb	Below the legal limit
Fluorideaverage · range 0.05 to 1.09 · listed as a violation in the report · System wide · 2025 report, page 2	0.69 ppm	1 ppm	4 ppm	Below the health goal
Ironaverage · range ND to 0.05 · listed as a violation in the report · System wide · 2025 report, page 2	0.04 ppm	—	0.3 ppm guideline	Within the guideline
PFHxS (a PFAS)highest measured · range ND to 1 · sampled 2023 · UCMR5 samples · 2025 report, page 2	1 ppt	None set	10 ppt from 2029	Below the legal limit
pHaverage · range 6.91 to 8.18 · listed as a violation in the report · System wide · 2025 report, page 2	7.67	—	—	Normal range
Turbidity (cloudiness)highest measured · listed as a violation in the report · Plant 1A, highest of 2 sources · 2025 report, page 2	0.12 NTU	None set	1 NTU	Below the legal limit
Hardnessaverage · range 4 to 37 · listed as a violation in the report · System wide · 2025 report, page 2	13.3 gpg (227 ppm)	—	—	Very hard
Lithiumhighest measured · range ND to 9.57 · sampled 2023 · UCMR5 samples · 2025 report, page 2	9.57 ppb	None set	None	No health limit
PFBA (a PFAS)highest measured · range ND to 4.1 · sampled 2023 · UCMR5 samples · 2025 report, page 2	4.1 ppt	None set	None	No health limit
PFBS (a PFAS)highest measured · range ND to 2.9 · sampled 2023 · UCMR5 samples · 2025 report, page 2	2.9 ppt	None set	None	No health limit
PFHpA (a PFAS)highest measured · range ND to 0.99 · sampled 2023 · UCMR5 samples · 2025 report, page 2	0.99 ppt	None set	None	No health limit
PFHxA (a PFAS)highest measured · range ND to 2.5 · sampled 2023 · UCMR5 samples · 2025 report, page 2	2.5 ppt	None set	None	No health limit
PFPeA (a PFAS)highest measured · range ND to 3.9 · sampled 2023 · UCMR5 samples · 2025 report, page 2	3.9 ppt	None set	None	No health limit
Sodiumaverage · range 67.8 to 196 · listed as a violation in the report · System wide · 2025 report, page 2	133 ppm	None set	None	No health limit

Utility results describe the whole system, measured where water enters the pipes, not your tap. Your home’s plumbing can add lead or copper.

EPA testing for PFAS and lithium

EPA’s own nationwide testing (UCMR 5) found these in Carmel Water Department’s water between Feb 2023 and Nov 2023. These are EPA lab results, separate from the district’s report. Anything not listed was not detected.

Lithium9.57 ppbFound in 1 of 10 samples · highest resultBelow EPA’s health reference level of 10 ppb

Source: EPA UCMR 5 occurrence data. The highest single result is shown; one high sample doesn’t mean every glass is that high.

What you can do

Nothing here is an emergency notice: if the district has a violation, it must tell customers directly. If you’d like to lower these at your tap, these are the treatments that remove them, and the catalog shows the models certified for each. Ranking is by certified removal; commissions never change the order.