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HRA Regular Session Meeting Date: 04/10/2012 By: Mark Riverblood, Engineering /Public Works Title: Approve Grading for the Creation of 5 Lots - Test Plot Development at North Commons 5. 1. Background: As the Housing and Redevelopment Authority members will recall, the proposal to move forward with the development of North Commons included the creation of 5 lots to the west side of the park along Zeolite Street. These lot locations are also the site of the test plots to ascertain the value and direction of the City's topsoil specification - which remains a question that emerged through the 2011 -12 development cost study process. On February 28th, 2012, the HRA directed staff to proceed with the various elements of the park, the topsoil 'experiment' and grading for the lot creation. Staff subsequently issued a Request for Quotation for hauling, earthwork and the placement of topsoil (sans the topsoil for the 4 test plots, which will be done as part of the irrigation RFP). The RFQ was divided up into differing line item quotes to identify what amount of the work to be performed was attributable to the lot creation, and what costs should be assigned to the park. Four (4) quotes were received on April 4th, 2012 for all of the earthwork and low sum total quote was for $28,000 for the cost associated with the lots and $4,000 for the balance of the park work. (The highest quote was $149,690.) The Topsoil importation and spreading for the lots and park was $14,400 (not including the 'specialty' topsoil associated with the test plots, which will be determined as part of the irrigation RFP). Based upon the area, approximately 10% or $1,400 of topsoil hauling and would be an associated lot creation expense, and the rest of the $14,400 ($13,000) is attributable to the park's construction. Additionally, there are two other services that need to be ordered before or concurrent with this grading and hauling activity, and that is wetland delineation at $350, and soil boring and testing for the fill and compaction of the 5 lots at a range estimated to be between $800 and $1,200 dollars. The wetland delineation may be considered 50% associated with the lots, the other half the park. Similarly, the silt fence and MPCA permit of $2,470 may be considered a shared expense between the two land development endeavors. The boring and testing is solely a pad -ready lot expense. Notification: Observations: The purpose of this case is to primarily to address the earthwork for the creation of the five lots to be sold for single family homes, and provide the grading and application of topsoil for the larger park space. Staff is in the process of determining the costs for the various other aspects of the test plots and North Commons' development as eluded to above, and these elements will go before City Council later this spring. The investments this case discusses are summarized below: Development of the 5 lots $28,000 hauling, grading $1,400 topsoil $1,200 soil boring and testing