3 listings in Waterboro, 2 of them farmers markets. 1 has a market day and hours from a public register or the market's own website. Market days in Waterboro: Tuesday (1), Wednesday (1), Thursday (1), Friday (1), Saturday (1).
Few Waterboro listings have a schedule or SNAP authorization we could source. Brunswick, 44 miles away, has 7 listings with more sourced detail; see also all of Maine.