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CCP 10-30-1995
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CCP 10-30-1995
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<br /> .. <br /> .' <br /> this station uas been relatively trouble free with the exception of some electrical phase monitor .- <br /> problems. The dry well appears to be i.n relatively good condition with minor spots of corrosion <br /> typical of chis type of structure. I <br /> Preliminary Recommendations: <br /> [n general tue station is in good condition and the routine maintenance program is doing a I <br /> good job of maintaining the equipment. With any steel dry wells it is important to routinely <br /> inspect the access tube and the floor for corrosion and clean and spot coat or repair as necessary. <br /> Lift St:ltion Number 8 I <br /> Location: Ingerson Drive at North Hamline Avenue I <br /> Type: Wet weill Dry well <br /> Manufacturer: Custom Built, Fairbanks Morse Pumps I <br /> Coustruction: Concrete wet well and dry well inside building <br /> Design Capacity: 1500 gpm at 67 ft TDH (one pump), 1730 gpm at 78 ft TDH (two pumps) <br /> Constructed: 1960, major upgrade in 1975, and electrical improvements 1990. I <br /> Comments: <br /> The 1975 upgrade work included the installation of new long shaft pumps with the dlive . <br /> motors installed on a concrete slab at ground level, and construction of a small building over the <br /> wet well and dry well. and replacement of the pump controls. The 1990 improvements included .. <br /> rebuilding of the pump control panel. <br /> The wet well is under the building and access is provided in a separate room with a <br /> separate access door from the outside. Electrical controls and the pump motors are located in an . <br /> adjacent room with separate access to the outside. The wet well side appears to be in relatively <br /> good condition but there are safety concerns due to the confined space classification of this type <br /> of design. The dry well side is in good condition and the pumps have been running well with I <br /> routine maintenance according to operating personnel. During wet weather conditions, this lift <br /> station e"lleriences very high flows suggesting significant infiltration/inflow in the sanitary sewer <br /> lines ",ith in the lift station service area, I <br /> This lift station structure also houses a flow meter ovmed and operated by the <br /> Metropolitan Council Environmental Services (MCES). The flow meter measures and records <br /> wastevvater flow from the southeastern portion of Arden Hills. I <br /> Preliminary Recommendations: <br /> In general the station is in good condition and the routine maintenance program is doing I <br /> as good job of maintaining the facility. One comer of the building has some bricks broken offand <br /> ~oncrete blocks exposed. TIlls are should be repaired as time allows to seal the building. The wet I <br /> welluas some safety considerations which are known by operating personnel and safety <br /> precautions are observed when working in this environment. <br /> I <br /> . I <br /> I <br />
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