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2 ) Family of 6 doing laundry at home, no water conserving <br />practices or devices. Estimated daily usage: 75 gpd per <br />person. <br />/5 gpd/person x 6 persons x 365 days/yr = 2,000 <br />gallons/pumpout = 82 pumpouts/yr (or every 4 days). <br />82 x $90 = $7,380/yr. <br />with a range of $540 to $7,380 year estimated ,eaintenpnce <br />cost, holding tanks are clearly not an economical method of <br />permanent sewage management for year-round residences. In <br />addition, problems encountered with this type of system can <br />include failure to pumpout when needed, leading to a surface <br />discharge or backup in the house; illegal pumping methods (siphon <br />hose to a nearby wetland, creek, or other surface discharge); and <br />inconvenience (needing a pumpout on a holiday, for instance). <br />Also, unless properly protected with secure covers, holding tanks <br />with a manhole access at the ground surface for ease of pumpout <br />are a potential hazard for inquisitive children who might fall <br />in. <br />For tr economic and technical reasons stated above, holding <br />tanks are not recommended as a permanent sewage treatment <br />solution for the Stubbs Bay Area. <br />OPTION 6. Selective condemnation and demolition of <br />properties which cannot or will not comply with sewage disposal <br />regulations. <br />Of the 82 developed properties 'listed in the "system <br />replacement capability survey", 23 were found to be located on <br />sites so limited that should the systems fail, they could not be <br />replaced in any way meeting the minimum code requirements. These <br />23 have a total taxable market value (from the Hennepin County <br />tax records) of $1,001,000 for the structures only. <br />It is unlikely that a total condemnation of these 23 <br />properties would be considered. Under selective condemnation, we <br />would strive to remove houses of low value which would: A) <br />eliminate an existing failing system that couldn't be repaired <br />according to code; and B) allow the combination of the remaining <br />land with adjacent properties to increase their replacement <br />capability. <br />23 <br />