According to the manufacturer, there is no wait time for swimming after applying Cutrine Plus Granular Algaecide.
Cutrine Plus Granular Algaecide is not labeled for use inside of drinking wells. According to the manufacturer, if the product is used in a pond/lake/stream, exactly as the label states, the water out of the pond can be safely consumed. However, this product is not labeled for use inside of wells.
Yes, livestock such as cows, sheep, goats, etc can drink from water that has been treated with Cutrine Plus Granular Algaecide. Directly from the label: CUTRINE-PLUS GRANULAR ALGAECIDE may be used for swimming, fishing, drinking water treatment, livestock watering or irrigating turf, ornamental plants or crops following treatment.