Question 1

Is tap water in Merrimac, WI (ZIP 53561) safe to drink?

Accepted Answer

Tap water for ZIP 53561, served by MERRIMAC WATERWORKS, has 8 contaminants detected above independent EWG health guidelines, including Lead at 75× the guideline. Meeting EPA legal limits does not necessarily mean water is safe — federal legal limits are often far higher than the latest health-based guidelines.

Question 2

What contaminants are in Merrimac, WI tap water?

Accepted Answer

EPA monitoring data for ZIP 53561 shows 10 contaminants detected, including Lead, TTHM, Bromodichloromethane, Dibromochloromethane, Dibromoacetic Acid, Nitrate. Each detected level is compared against both EPA legal limits and the stricter EWG health guidelines.

Question 3

Does Merrimac, WI tap water have PFAS ("forever chemicals")?

Accepted Answer

No PFAS were detected in the available testing (0 compounds tested) for ZIP 53561. PFAS testing coverage varies by water system, so absence in the data does not guarantee none are present.

Question 4

How can I remove these contaminants from my drinking water?

Accepted Answer

A multi-stage filtration system that combines activated carbon, reverse osmosis, and remineralization removes PFAS, heavy metals, and disinfection byproducts while restoring beneficial minerals. The Viven faucet is engineered to remove 99.9% of the contaminants found in tap water.

Question 5

Where does this Merrimac, WI water quality data come from?

Accepted Answer

This report is built from U.S. EPA data: the Unregulated Contaminant Monitoring Rule (UCMR 3/4/5), the Six-Year Review (SYR4), the Lead and Copper Rule (LCR), and SDWIS violation records. Detected levels are compared against EPA legal limits and Environmental Working Group (EWG) health guidelines. Data last updated 2026-05-01.

Merrimac, WI

Legal does not equal safe.

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Merrimac water quality questions

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