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<br />Pavement <br />The area west of the Pretreatment Building needs to be paved to facilitate pickup and <br />li;op"o,,] of screenings and grit. A &ont-end loading garbage truck would require <br />adequate pavement for turning and maneuvering. Pavement would be extended iTom the <br />south edge of the driveway to the edge of the proposed building addition and roughly <br />20' -0" to the west of the Pretreatment Building. <br /> <br />Ladder Safety Cage <br />Grit pumps are located in the north half of the Pretreatment Building in the lower level. <br />Operators must climb a ladder down to the grit pump level. The 1995 facility upgrade <br />included plans to replace the ladder with stairs. The ladder can be instal1ed as part of this <br />project in a similar arrangement to those plans. <br /> <br />Exterior Ladder <br />Plant staff are required to maintain ventilation equipment housed on the roof of the <br />Pretreatment B,.ilding. It is recommended that a ladder be added to the south side of the <br />building for easier access. <br /> <br />Primary Clarifier #1 Guardrail <br />The guardrail surrounding the west circular primary clarifier is weathered and due for <br />replacement. Original installation of the guardrail occurred in 1975. It has deteriorated <br />along its entire length and is completely corroded in numerous spots. Painting provides <br />little benefit in its current condition and causes future maintenance issues. As part of this <br />project, the guardrail should be replaced for safety reasons to match the guardrail <br />surrounding the adjacent primary clarifier. <br /> <br />Electrical Panel Removal <br />The existing Sylvania motor control center (MCC-2), located on the north side of the <br />Pretreatment B'lilding, should be replaced during this proj~ for the following reasons: <br />. Sylvania no longer manufactures MCC's, making replacement parts difficult or <br />impossible to obtain. <br />. MCC-2 is full; leaving no space for the larger motor starters required for the <br />proposed headworks improvements. <br /> <br />Motor starters that are in good working condition would be salvaged iTom the existing <br />MCC and turned over to the plant staff to use for spare parts in other Sylvania MCC's at <br />the plant. The replacement MCC would be relocated to the northeast side of the grit <br />room to allow a dumpster to be set next to the overhead door. A small concrete slab is to <br />be constructed over part of the grit pump pit to support the MCC. <br /> <br />CONSTRUCTfON STAGING <br /> <br />Construction of the proposed headworks upgrades is to be phased and flow bypassed during <br />construction. Detailed analysis of construction staging will be performed during the design <br />phase, but general observ<ltions hav~ been made based on preliminary design. <br /> <br />12 <br />