[TowerTalk] what is 'No Impact Towers'?

[FireBrick]

In looking at building/Zoning for Batavia IL., I found the term "No Impact Towers".

I'm unfamiliar with this term.

Anyone explain?

Please and thank you.


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You need a Lifestyle change if: You wonder how service stations keep their restrooms so
clean.
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Bill H. in Chicagoland