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INSTALLATION ONL~, <br />~~ ~ <br /> <br /> I SMITS & ASSOCIATES, INC. <br />~ John L. Sm~, <br />/ eox 6 <br />~ Clac~mea, OR 97015~116 <br /> (503) 659~623 <br /> SPECIFICATIONS <br /> 03/23/98 <br /> <br />Property owner: <br /> <br />Physical address: <br />Legal description: <br />County: <br />Site approval date: <br />Projected Installer: <br /> <br />Pater Kasachev <br />Plan for Four (4) bedroom system; 3 bedroom planned <br />[Conventional Sand Filter/Center Pump Basin] <br />14644 Kasel Court, Aurora, OR <br />T. 4S., R. IW., Sec. 12__, Tax lot 2600 <br />Marion County <br />??; [Robert Fcetar, R.S.] <br />TrkCounty Construction (Leo Watkins) <br /> <br />DEQ License No.: 36681 <br /> <br />SAND FILTER CONTAINER: <br /> <br />Partial burial of a conventional sand filter using a plywood and 2 x 4 "box" design, discharging <br />from center pump basin to distribution box and 108 ft., equal distribution trenches. Filter dimensions: <br />10 ff. X 36 fi, (360 sq. ff.). Burial in general to be not deeper than 6" above existing grade at the highest <br />point of the four (4) points of the sand filter to promnte mn-off around the filter area. <br /> <br />SAND FI T PI I : <br /> 1 1/4" or evl~ l"~amater Class 200 PVC, 1120 ASTM D-2241. Total flow = 26 gpm/4 <br /> laterals = 6.~ateral. W'rth a segment length of not more than 34 ft. 5', I 1/4" Class 200 <br /> pipe has only a 0.63% head loss differential between the near and far o~fices while the <br /> permitted loss is 10%. 1" Class 200 has only a 1.95% head loss differential between the near <br /> and far orifices, l" Sch 40 PVC a 3,6% difference and 3/4" PVC Sch 40 about 5.5%. The smaller <br /> the pipe, the greater the scouring velocity to keep the lateral clean. <br /> <br />Laterals as 4 - 34' 5" lengths with end manifold as indicated on plan. Each lateral perforated <br />wffh 15 - 1/8" dia. holes at 12:00 o'clock orientation, 29" apart on centers, maintain not less <br />than 13" from end of fitting to 1'st odfice. Total of 60 orifices. Orifice shields and lateral end <br />turn-ups to finish grade are required. <br /> <br />SAND: <br /> <br />Medium sand meeting OAR 340-71-295-(3)(e) Sieve analysis of the medium sand to be loaded <br />into the filter may be required to be mede by a qualified party and a report provided to Madon Oounty <br />Building Inspection section prior to sand placement. Analysis to comply with ASTM C136, Standard <br />Methods for Sieve Analysis of Fine and Coarse Aggregate and in conjunction and accordance with <br />ASTM C-117, Standard Test Method for Materials Finer than No. 200 Sieve in Mineral Aggregates by <br /> <br />Washing. <br /> <br />Sieve# % Passin,q <br />3/8 100% <br />~.4 95-100% <br />#8 80-100% <br />~16 45.85% <br />#30 15-60% <br />· 50 3-15% <br />#100 4% or less <br /> <br /> <br />