| http://www.w3.org/ns/prov#value | - Under Michigan???s Natural Resources Environmental Protection Act known as Public Act 504, a Soil and Sedimentation control Permit may be required for projects requiring the removal of vegetation or excavation in order to contract buildings, lay sewer, dig ponds or various other earth moving activities over an acre or within 500 feet of a water body of the state, including lakes, streams, creeks,
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