I will assume you were using steel shot since you appear to be shooting over water.
We were not....Had no idea what you meant so I did some googling and learned that waterfowl will eat the lead pellets as grit then get lead poisoning
I doubt very many of the pellets landed in or near the water(the widest part is in the picture) so it should be fine right??
Should you always use steel shot when shooting around any water frequented by waterfowl? Is there a general rule?
We used biodegradable clays if that means anything!