CC PACKET 07281987 - Laserfiche WebLink

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1 -10- • 2 pond,- known as Mirror. Lake h-ad-.overflowed by, at: .least- six. inches in an. 3 hour ':s time and the inability. of the storm sewers to handle the .downpour, 4 had caused infiltration .of storm'- water into the sanitary sewers. 5 The Public Works' Director suggested it might be ' necessary to contact the 6 City of Minneapolis to see if they could handle- a larger line coming off 7 Wilson Street,' but cautioned that option might be- 'very costly for St. 8 Anthony. 9 Councilmember Enrooth commented that within the -last-ten or fifteen 10 years St. Anthony had experienced two "rainfalls of the century" as 11 well as- the one the previous Thursday night which had been termed ..as one 12 which "would occur only once every five or ten .thousand years. " He 13 indicated he didn' t perceive the City could have done anything. at. all 14 about the amount of rain which fell that night because, even tripling 15 the size of the system; would probably have not been enough'. 16 Check Backflow and Gate Valves Discussed 17 Hamer: -explained that such valves can be installed at the point 18 where the house pipes enter the main sanitary system and 19 prevent sewage from entering the structure during overflow 20 conditions; 21 -cautioned that the gate valves which prevent flow either 22 way can cause more problems for the homeowner if toilets , 23 showers, or faucets are used while the valve is' closed; 24 -also said the system would not work where drain tile are 25 connected to the sanitary sewer system. 26 Sundland: -recalled the Council at one point years ago was seriously 27 considering imposing penalties on homeowners who had non- 28 conforming connections but "people . went wild. when -they heard 29 about that. " 30 Jack Farenholz , 2836 Silver Lake Road,. indicated he had water in his 31 basement -during the last storm and had concluded, from- watching the water 32 flow out of the storm sewer- in the intersection of 29th and Silver Lake 33 Road that it was not the drain tiles connected- to peoples ' sewers which 34 had caused the most problems but rather the storm sewer system itself 35 which could not handle the excess rainfall. He said the water in his 36 own basement had started to go down the minute the intersection had 37 started to drain. 38 In =reference to the check valves, Mr. Farenholz ,pointed out they could 39 only provide "temporary, rather .than a permanent" solution to the 40 problem because sewage which is prevented from entering one home would 4-1 then enter the. next: house on the line which did not. have. a preventive 42 system. It was his contention.- that the City had to get some control 43 over the storm water before future problems could -be avoided.