I live in Martinsville Indiana and they just last month stated this crap here. It will cost us about $100/year for our one acre lot in the industrial park for rain water. And this is for every square foot of land in the city limits, residential and commercial including your yard as well. We calculated how many millions of dollars this tax will cost people, and there is no announcement on where the money will officially go either other than "waste water treatment".
Next they’ll tax you on the number of trees you have. Or how much sunlight your property is receiving.