01-28-2014 - Laserfiche WebLink

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January 28, 2014 Mayor Jacobsen requested further information on what had been found in the landfill. David Smart, Belair Excavating, explained the landfill contained concrete and steel, along with asbestos tiles and demolition rubble. Councilmember Bauman asked how the landfill area would be "capped ". Mr. Smart explained the MPCA wanted to see two feet of soil brought in to cover the site. He reported roughly half of the property was considered to be a landfill site. Mayor Jacobsen asked if there were any infiltration concerns. Mr. Smart commented that the soil cap and grading would eliminate these concerns. Mr. Murlowski added that this area could have no ponding. Mayor Jacobsen thanked Belair Excavating for taking on the expense and work behind this project to improve this portion of the City. Councilmember Jacobsen thanked Belair Excavating for working with staff on this issue and for supporting the proposed moratorium. Motion by Councilmember Bauman, seconded by Councilmember Burg to adopt an Interim Ordinance, imposing a moratorium on new development on the properties listed within the Ordinance. 5 Ayes, 0 Nays - Motion Carried 2. Consideration of Bids and Award of Contract for City Project 1411, Iron/Manganese Removal System Filter Rehabilitation — WTP0 . Report No.14 -031. Acting City Manager Jacobson explained Public Works Director Wyffels would be presenting this item to the Council. Public Works Director Wyffels stated the Council budgeted for an iron/manganese removal system with the Army and this work is to be completed in 2014. Staff discussed the carbon filters and how they would function to improve the City's water supply. He reported staff received four bids for this system on January 14, 2014 with the low bid of $649,960 from Rice Lake Construction Group. This amount is higher than was estimated by Barr Engineering due to addenda that were issued for the project, resulting in several modifications and a higher bid price than expected. Ann Phares, Barr Engineering, explained she has been working with the City on water projects for the past 16 years. She discussed the iron/manganese removal system noting it was installed by the City in the mid 1990's. The project details were explained in detail with the Council. Public Works Director Wyffels stated the entire project would be funded through the Army Water Fund. Staff recommended the Council accept the bids and award a contract for City Project 1411, the Iron/Manganese Removal System Filter Rehabilitation to the lowest responsible bidder, Rice Lake Construction Group, in the amount of $649,960. Mayor Jacobsen asked how the iron and manganese levels would be reduced with the finished product. Ms. Phares reported the City had more manganese than iron in its water, and each well level varied. She then discussed the desired iron and manganese levels explaining that the new filter would remove all traces of these water components. Councilmember Jacobsen questioned the life of the ircWmanganese filter. Ms. Phares anticipated the filter would last the City approximately 20 years. Councilmember Jacobsen inquired if staff was surprised by the expense of the project. Ms. Phares stated the project was highly labor intensive and the contractors provided the City with an accurate bid for the project. Councilmember Jacobsen requested further information on how the proposed filter would purify the City's water. Ms. Phares explained how water cycled through the filter and sand to be purified. Page 5 of 7 2, Consideration ofBids and Award ofContract for City Project 14-4, Iron/Mangnese Removal System Filter Rehabilitation Report No.14-031.