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1982-06-01 Memo, Septic System Design Review
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1982-06-01 Memo, Septic System Design Review
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8/8/2024 11:50:17 AM
Creation date
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x Address Old
House Number
185
Street Name
Brown
Street Type
Road
Street Direction
South
Address
185 Brown Road S
PIN
0311723210021
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$ <br />EXHIBIT <br />TO: <br />FROM: <br />DATE: <br />Jeanne A. Mabusth, Zoning Administrator <br />Michael P. Gaffron, Septic System Inspector <br />June 1, 1982 <br />SUBJECT; #685 Charles Krogness - Subdivision - Septic System Review <br />I have reviewed the proposed subdivision and wish to make the <br />following comments: <br />Lot 1 (new lot) - Primary and alternate sites were tested, <br />with percolation rates averaging 7.4 and 5.7 mpi respectively. <br />Water table depth ranged from 3.7 ft to 5.8 ft or deeper, <br />hence shallow trenches would be recommended, as well as runoff <br />and groundwater diversions uphill from the system, assuming <br />house location does not change. <br />Lot 2 - Existing house with existing system. Existing system <br />was inspected in 1981 and appeared to be in operable condition. <br />An alternate site has been tested and is suitable for a standard <br />drainfield. One problem does present itself, however. At <br />least one drainfield line protrudes approximately 15-20' into <br />the proposed new lot at a point where the new house would presumably <br />be located. Orono code requires a 20' setback for drainfield <br />from property lines, although only 10' is normally enforced <br />where reasonable to do so. For this subdivision, since the <br />existing drainfield would be very close to the proposed new <br />house, two options present themselves: <br />1 - Rearrange lot lines to give the 10' setback. This would <br />severely limit the area where the proposed house could <br />be located. <br />2 - Cut off the existing drainfield to a point at least 10' <br />back from the proposed lot line, then add an equivalent <br />amount of drainfield downhill on Lot 2. While it may <br />seem unreasonable to remove an existing functional <br />drainfield becuase it is over the lot line, it is equally <br />unreasonable to expect a future owner of Lot 1 to allow <br />treatment of his neighbors sewage on his lot. Futhermore, <br />the expected runoff from a house on Lot 1, as well as <br />construction fill and disturbance, might possibly disrupt <br />the proper functioning of that portion of drainfield anyway. <br />One problem that may crop up is that by cutting off the end <br />of the drainfield, the soil disturbance may create a seepage <br />point if the line fills up. <br />My recommendation is that the entire line (or lines) be abandoned <br />and the equivalent or more of new drainfield be constructed further <br />south, .where the effect of added runoff will be lessened. <br />(While allowing the lines to be merely shortened would be acceptable <br />if we knew Mr. Krogness would continue to own the existing house, <br />we should not take the chance that drainfield changes made <br />necessary by the subdivision cause a future problem for a new <br />owner of the existing house).
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