https://portrasdoalimento.info/agrotoxico-na-agua/
This article is a collab between "Repórter Brasil", "Public Eye"and "Agência Pública de Jornalismo Investigativo". They used data to show us what kind of pesticides are in potable water in a lot of cities in Brazil. Datas are scraped from governament with a Information Acess Law. If you want to know what kind of water do you drink, click on the map, or write the city name. All datas are there.