05/27/2020 EB Packet - Laserfiche WebLink

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3 Stormwater Pollution Prevention Plan (SWPPP) SWPPP has been submitted and will be reviewed with final construction plans. This site will drain to impaired waters, Clearwater Creek and Peltier Lake, so stabilization of exposed soil areas must occur within 7 days after the construction activity in that area permanently ceases. Redundant perimeter controls will be required near wetlands on the site wherever a 50 foot natural buffer cannot be maintained. This is noted in the SWPPP. Flood Plain Site does not fall within the flood management zone. Wetlands Per the wetland delineation report prepared by Barr Engineering Co., three wetlands were delineated within the site totaling 7.52 acres that are protected by the Wetland Conservation Act. This prohibits draining, filling, and excavating in wetlands unless the activity is exempt or the wetland impacts are mitigated. The overall goal of the WCA is no net loss of wetlands. No impact to these 7.52 acres of wetlands is proposed. Other areas evaluated on the site include three stormwater ponds and a created ditch totaling 0.9 acres. These excavated ponds, impoundments, and drainage ditches do have wetland characteristics, but they were created for the purpose of water retention or detention and drainage. These areas were created in upland, and would not be regulated by WCA. This is going to be reviewed by Rice Creek Watershed District. The wetlands are within the Wetland Management Corridor and conservation easement and wetland buffers are required. The applicant proposes a 25 foot buffer. This will be reviewed by RCWD. As part of the 1999 building expansion project, a Declaration of Restrictions and Covenants (DORC) was recorded over the wetlands. This is being modified as part of the Rice Creek Watershed District wetland permit review. The DORC will be modified to reflect the current delineations. A separate public drainage and utility easement covering the delineated wetland, conservation easement and WMC buffer shall be drafted and recorded against the property.