Laserfiche WebLink
r Z <br />INDIVIDUAL SEWAGE TREATMENT SYSTEM WORKSHEET <br />FZnw <br />A. Esti `ed ! %tso gpd <br />(Se# ? or I-3,4,°1 <br />or measured gpd <br />,SEPTIC TA -1K VOLU.tiSE <br />H. Z- /h00 gallons <br />(See -C-3 or C-5) <br />S211A (Site evaluation data) <br />C. Depth to restricting layer • <br />feet <br />D. Maximum depth of s stem <br />C - 3 ft �� feet <br />E. Percolation rate /B MPI <br />F. Soil treatment area <br />sq ft/gpd (See D-6, a-29) <br />T -N .H BGTTr1M R A <br />H. For trenches with 6 inches of <br />rock below the distribution <br />pipe: <br />A x F x _ <br />sq ft. of bottom area <br />I. For trenches with 12 inches of <br />roc% *--.low t::e distribution <br />pipe: <br />AxFx0.8-450xI. hTx <br />0.9 - (gQZsq ft of bottom area <br />J. For trenches with 18 inches of <br />rock below the distribution <br />pipe: <br />A x F x 0.66 - x x <br />0.66 - _ sq ft of bottom area <br />K. For trenches with 24 inches of <br />rock below the distribution <br />pipe: <br />A x F x 0.6 - x x <br />0.6 - _ sq ft of bottom area <br />AaEA <br />L. For seepage beds: <br />1.5 x A x F- 1.5 x x <br />- _ sq ft of bottom area <br />ROCKyOL•C1:.'-. IN CU rT <br />M. Rock depth below distribution <br />Pipe plus 0.5 foot times <br />bottom area: <br />M - ( { + 0.5 ft) x Ez_ - <br />QQ_ticu ft <br />ROCK VOLUME IV <br />N. voluire in cu ft divided by 27 <br />H + 27 - cu yds <br />qQZ- 27 - M.Ycu yds <br />ROCK WEIGHT <br />O. Cubic yards times 1.4 - tons <br />N 1.4 - tons <br />x 1.4 - _! tons <br />DISTRIBUTION <br />(Check one based on slope) <br />Bed (less than 6% slope) <br />TrePches <br />Drop boxes (any slope) <br />Distribution box <br />(level to slightly <br />sloping) <br />TRENCH LENGTH <br />P. Select trench width - 13 ft <br />Q. Divide bottom area by trench <br />width: <br />(H, I, J, or K) + P <br />lineal Jfeet. <br />�L <br />s._ - Zolineal feet <br />LAWN <br />R. Select trench spacing, <br />center to center - Z feet <br />S. Multiply trench spacing by <br />lineal feet <br />R x Q - sq ft of lawn area <br />X zQ-j - __�& sq f t <br />T-Ayn"T (Use other side) <br />1. Select an appropriate scale; <br />one square - feet. <br />2. Show pertinent property <br />boundaries, right-of-way, <br />easements. <br />3. Show location of house, <br />garage, driveway, and all <br />other improvements, existing <br />or proposed. <br />4. Show location and layout of <br />sewage treatment system. <br />5. Show location of water supply <br />well. <br />6. Dimension all set backs and <br />separation distances. <br />D-28 <br />