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<br /> ----- <br /> / <br /> , ./ .. <br /> Lift Station Number 1 .. <br /> Location: Arden Hills Trail <br /> Type: Wet well/ Dry well . <br /> Manufacnrrer: Smith & Loveless <br /> Construction: Concrete wet well, Steel tube dry well . <br /> Design Capacity: 200 gpm at 31 feet TDH <br /> Constructed: 1959, modifications - cover was replaced and access tube extended with <br /> grading changes for parking area; 1993 New electrical service was . <br /> installed: no major pump or motor modifications, <br /> Connents: . <br /> The dry well tube and cover were modified when the adjacent town house units were <br /> constructed and the replacement cover is somewhat distorted and corroded. . <br /> In 1993 the electrical service was replaced by Aid Electric, and the overall station was <br /> checked out but there was no work done on the controls. <br /> According to operating personnel the station is relatively trouble free except for routine . <br /> maintenance. During wet weather conditions, there is an increase in the pump running times <br /> indicating some infiltration/inflow in the service area of this lift station. <br /> Preliminmy Reconnendations: . <br /> The wet well cover needs replacement or at least some repair and recoating for corrosion .. <br /> protection. The dry well tube and floor should also be inspected and possibly spot cleaned and <br /> recoated as necessary. <br /> Lift Station Number 2 . <br /> Location: Easement west of Chatham Avenue . <br /> Type: Wet well/ Dry well <br /> Manufacnrrer: Custom Built, PACO Pumps . <br /> Construction: Concrete wet well and dry well inside building <br /> Design Capacity: 900 gpm at 78 ft TDH (one pump); 1100 gpm at 89 ft TDH (two pumps) <br /> Constructed: 1977, major upgrade in 1983. . <br /> Co=ents: <br /> The 1983 upgrade work included the installation of/ong shafts on the pumps with . <br /> relocation of the drive motors to a ground level concrete slab, and construction of a small building <br /> over the wet well and dry well. and replacement of the pump controls. <br /> This station was not viewed, however according to operating personnel, the construction . <br /> is similar to the building at stations 5 and 8. In these locations, the wet well is under the building <br /> and access is provided in a separate room with a separate access door from the outside. Electrical . <br /> controls and the pump motors are located in an adjacent room with separated access to the <br /> outside. There are safety concerns on the wet well side due to the confined space classification of . <br /> this type of design. The dry well side provides good access to the pumps and motors for . <br /> . <br />