1997-10-02 - Laserfiche WebLink

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• (10) If the assembly cannot be installed in the prescribed manner for any reason, the proposed deviations shall be submitted to BWU for review and approval before installation. B. RPZA DRPZA DDCVA, DCVA Installations (1) The assembly shall not be installed below grade, unless the following criteria can be met and accepted by the Approving Authority: (a) The vault and its installation shall be approved by BWU before the start of construction. In no case shall the vault be deeper than four (4) feet. (b) The vault shall not be subject to flooding. (c) The walls of the vault shall extend above the finished grade a minimum of 3" to prevent intrusion of water or dirt. (d) The vault shall be water-tight to prevent intrusion of water or dirt. (e) The vault shall drain to daylight through an adequate and permanent gravity drain with a slope of at least 1 degree. Installation plans shall show the elevation of the vault floor and the area the water will drain to. Plans shall show drainage pipe depth and location. Drainage pipe size shall be twice the inside diameter of the supply line. Protection on the drainage outlet shall be provided to prevent undesirable creatures from entering. (f) The vault cover shall be removable to allow full access to the vault. A minimum of two lifting points shall be provided. (g) An access door shall be installed in the vault cover on the testable side of the assembly. Approved doors shall be similar or equal to Bilco or Halladay and shall be a minimum of 24" x 24". (2) Minimum installation clearance dimensions shall be 30 inches between the assembly and corresponding wall and 12 inches on the opposite side, 8 inches on each end, 6 inches above the highest point and 12 inches under the assembly. Top of assembly shall not exceed 72 inches above finished grade. Unless prior approval by control authority. 13