Laserfiche WebLink
NATIVE SOIL <br />FINISH 2" (MINIMUM) LAYER OF NATIVE SOIL (UNDISTURBED) <br />GRADE 3/4" MINUS BACKFILL <br />SLOPE AWAY 6" CRUSHED ROCK <br />TO DRAIN <br />►--- <br />D00 x <br />xx <br />SEE NOTE 2A <br />SEE NOTE 2C\j\\//\%\/%' <br />NOTES: (1) AREAS WHERE PIPING AND CONDUIT SPAN <br />SEE NOTE 2A <br />j /; A THE TANK EXCAVATIONSHALL BE BACKFILLED <br />WITH WATER SETTLED SAND TO PREVENT <br />SETTLING. <br />\\ <br />O 2 SEALINGAND WATER TIGHTNESS TESTING: <br />6"x6" RING s l \\ \\ NO MORE THAN ONE 'GALLON OF WATER LOSS IN 24 HOURS <br />OF BENTONITE SLOPE OR SHORE <br />SHALL BE TOLERATED. FIELD `REPAIRS MAY BE -ATTEMPTED <br />/ <br />(CENTER ON SEAM) ' / EXCAVATION IN ACCORDANCE ONCE. IF THE TANK FAILS THE WATER TIGHTNESS TEST <br />SEE NOTE 2B <br />WITH APPLICABLE SAFETY A SECOND TIME IT SHALL BE REPLACED AT NO EXPENSE - <br />' \ TO THE OWNER. <br />REQUIREMENTS <br />(A) ALL PIPE PENETRATIONS AND RISER SEAMS SHALL BE <br />VISUALLY TESTED WITH WATER. ANY 'OBVIOUS LEAKAGE <br />\, <br />SHALL .RESULT IN RE—GROUTING ALL PIPE PENETRATIONS <br />1 "x6" j' AND RISER SEAMS SHALL BE SURROUNDED WITH A - <br />WOODENMINIMUM OF SIX INCHES OF BENTONITE PRIOR TO <br />FORM \ BACKFILLING. <br />(B) TWO-PIECE (MID -SEAM) TANKS: BACKFILL TO 3 INCHES BELOW <br />THE MID—RIB SEAM BEFORE INITIATING THE WATER <br />TIGHTNESS TEST. FILL THE TANK WITH ' WATER TO 6 <br />INCHES ABOVE THE SEAM .FOR THE INITIAL TEST. IF <br />THE SEAM DOES NOT LEAK, PLACE BENTONITE, BACKFILL <br />LIFTS (COMPACTED SOIL, CRUSHED ROCK, PEA TO THE EXTERIOR TANK TOP AND FILL THE TANK WITH <br />12' GRAVEL,WATER TO 2 INCHES INTO THE RISERS (NO MORE). PRE— <br />OR WATER SETTLED SAND) SOAK FOR 24 HOURS AND REFILL, IF NECESSARY. <br />O O° o0 00 ° ooa o �o a o0 0 a o0 00 ° oo ° O° ° o a STABLE LEVEL BASE <br />Cio �o °Oo °Cio °oo °oo °oo ° o °Oo °oo °oo °oo °oo °oo °oo 00 (C) ONE-PIECE OR TOP SEAM TANKS: BACKFILL TO 6 INCHES BELOW <br />o ° o ° o °, — o ° o ° oo ° ao ° o0 0 ° ao ° oo ° 0 6 ' (MINIMUM) COMPACTED 3/4' MINUS <br />— 0 0 8 °Oo _ O° o�"S'o 0 0 0 THE EXTERIOR TANK TOP. FILL THE TANK WITH WATER TO 2 <br />o°oo°o ° °° OO° O o o°o <br />_ — NT11 <br />CRUSHED ROCK OR WATER SETTLED SANDINCHES INTO THE RISERS (NO MORE). PRE—SOAK FOR 24 <br />i-1 HOURS AND REFILL, IF NECESSARY. PLACE BENTONITE <br />— — PRIOR TO FINAL ,BACKFILL. <br />NATIVE SOIL <br />(UNDISTURBED) <br />,a <br />PSS s <br />Ce 66kd Pro15arion.1 <br />Soil SVT'BRD4Y7 R4BE <br />Lfu FlI-w.uM3D F.m. <br />REUSE OF DOCUMENTS: THIS DOCUMENT AND THE IDEAS AND DESIGN INCORPORATED HEREIN, AS AN INSTRUMENT OF PROFESSIONAL SERVICE IS THE PROPERTY OF CASCADE EARTH SCIENCES AND IS NOTTO -BE USED, WHOLE OR IN PART WITHOUT THE WRITTEN AUTHORIZATION OF CASCADE EARTH SCIENCES - <br />St. Innocent Winery <br />10052 Enchanted Way SE <br />Jefferson, OR <br />REV # _ DESCRIPTION BY DATE <br />DES. BY ,BTR <br />DRG, BY BaR <br />CHK. BY ,GSTgo <br />DATE 4/26/2018 <br />JOB No. P201824042 <br />CASCADE EARTH SCIENCES <br />0001, <br />SHEET <br />Tank Excavation and Backfill Detail <br />\ 1 <br />-Sewage Treatment System <br />