Melbourne, FL Tap Water Quality Report

Last updated November 2026. Here is what testing has found in Melbourne, Florida tap water, compared with health-based goals (not just the legal limits, which can be much higher). Your exact address may be served by a different system, so check your ZIP code free.

The contaminants furthest above health goals in Melbourne tap water are Total trihalomethanes (TTHM), Haloacetic acids (HAA5) and Haloacetic acids (HAA9).

What these contaminants are

  • Total trihalomethanes (TTHM): Disinfection byproducts that form when chlorine reacts with organic matter. Long-term exposure is linked to bladder cancer and liver and kidney effects.
  • Haloacetic acids (HAA5): Another group of chlorine disinfection byproducts. Long-term exposure above EPA limits is linked to higher cancer risk.
  • Haloacetic acids (HAA9): The full group of nine haloacetic acids, including brominated ones EPA doesn't regulate yet.

City of Melbourne

Serves about 167,753 people from surface water and groundwater. Public water system ID FL3051447.

13 contaminants detected in recent testing, 6 of them above the health-based goals we compare against.

Contaminant Average detected Health goal Times the goal Legal limit Year
Total trihalomethanes (TTHM) 27.4 ppb 1.00 ppb 27× 80.0 ppb 2019
Haloacetic acids (HAA5) 17.2 ppb 1.00 ppb 17× 60.0 ppb 2019
Haloacetic acids (HAA9) 16.9 ppb 1.00 ppb 17× none 2020
Arsenic 0.0625 ppb 0.004 ppb 16× 10.0 ppb 2019
Chromium-6 0.0729 ppb 0.02 ppb 3.6× 10.0 ppb 2014
Chlorate 481 ppb 210 ppb 2.3× none 2014
Fluoride 602 ppb 1,000 ppb below 4,000 ppb 2019
Strontium 719 ppb 1,500 ppb below none 2014
Nitrate 174 ppb 10,000 ppb below 10,000 ppb 2019
Manganese 0.681 ppb 50.0 ppb below none 2020
Selenium 0.4 ppb 30.0 ppb below 50.0 ppb 2019
Nitrite 10.4 ppb 1,000 ppb below 1,000 ppb 2019
Barium 17.9 ppb 2,000 ppb below 2,000 ppb 2019

Tested and not detected: Antimony, Atrazine, Benzene, Cadmium, Carbon tetrachloride, DBCP, 1,2-Dichloroethane, 1,4-Dioxane, Ethylene dibromide (EDB), Mercury, Tetrachloroethylene (PCE), Trichloroethylene (TCE), 1,2,3-Trichloropropane, Thallium, Vinyl chloride.

How to filter Melbourne tap water

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About this data

Results come from testing and annual water quality reports that utilities file with the EPA and the Florida Department of Environmental Protection, compiled in our free water check. Health goals are the stricter of EPA health goals or California public health goals; legal limits are EPA maximum contaminant levels or action levels. Water quality can change between the treatment plant and your home, so these figures are a guide, not a test of your own tap.

Denali Spring is a small water filter company based in Vero Beach, Florida. See all Florida city water reports.