City Council Minutes 2015 05 19 - Laserfiche WebLink

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City Council Meeting Minutes May 19, 2015 Page 29 of 34 Vote: Motion carried by unanimous roll call vote (summary: Yes = 5). Absent: Mayor Pro Tem Dalton and Council member Loo. APPROVE CONSTRUCTION SERVICES AGREEMENT WITH MWH CONSTRUCTORS, INC., FOR THE WASTEWATER TREATMENT FACILITY UPGRADES Public Works Director Kowar noted staff recommends approval of a construction contract with MWH Constructors, Inc. in the amount of $26,968,534 and authorizes a staff controlled $2,696,853 contingency for construction of a new Wastewater Treatment Plant. On October 1, 2011, Louisville's Wastewater Treatment Plant (WWTP) was issued a new discharge permit regulated by the Colorado Department of Public Health and Environment (CDPHE). This permit incorporated stricter discharge requirements for the City's wastewater effluent released to Coal Creek. A compliance schedule was provided with a deadline for the WWTP to meet new ammonia removal standards by July 31, 2017. Additionally, CDPHE is expected to implement new nutrient criteria for nitrogen and phosphorous, which the WWTP would be expected to meet in 2022. The WWTP is currently not able to reliably meet the 2017 standards and would not be able to meet the 2022 standards at all. Non - compliance with new WWTP limits could result in a violation of Federal law, which could carry fines of up to $25,000 per day. In 2012, the City hired Dewberry Engineers to evaluate the existing facility. Dewberry determined the facility does not meet current CDPHE required design standards for redundancy and would not comply with the future discharge limits. The upgrades required to correct the deficiencies could be addressed by two smaller construction projects, several years apart, designed to address a specific regulation before it became effective, or one larger project that would bring the WWTP into compliance for the foreseeable future. It was determined that due to economies of scale, low interest rates, and a reduced impact to WWTP operations through one construction project instead of two, the City should pursue one large upgrade. Once the upgrade scope was well defined, the City hired Dewberry to design the facility improvements. The WWTP design phase commenced in May of 2013 and was finalized in February of 2015 with a solicitation for construction services issued in March. Four construction companies responded to the proposal. City and Dewberry's staff reviewed qualifications of the low bidder and determined MWH Constructors, Inc. meets this project's requirements. Based on the low bid and MWH's qualifications, staff recommends the project be awarded to MWH Constructors, Inc. Although the low bid is $27,076,534, the contract documents gave Dewberry and staff flexibility to make certain equipment selections, which could reduce the bid price. Based