BIL 269 Draft 03 2008-2010 - Laserfiche WebLink

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(B) Standards for a mini -leach field system: (1) Perforated sections shall be a minimum three (3) inch (80 mm) diameter and shall be constructed of perforated high- density polyethylene pipe, perforated ABS pipe, perforated PVC pipe, or other approved materials, provided that sufficient openings are available for distribution of the gray water in to the trench area. Material, construction, and perforation of the pipe shall be in compliance with the appropriate absorption fields drainage piping standards and shall be approved by the Health Officer. (2) Filter material, clean stone, gravel, slag, or similar filter material acceptable to the authority having jurisdiction, varying in size from three - quarter (3/4) inch (20 mm) to two and one -half (2 -1/2) inch (65 mm) shall be placed in the trench to the depth and grade required by this section. The perforated section shall be laid on the filter material in an approved manner. The perforated section shall then be covered with filter material to the minimum depth required by this section. The filter material shall then be covered with untreated building paper, straw, or similar porous material to prevent closure of voids with earth backfill. No earth backfill shall be placed over the filter material cover until after inspection and acceptance." (21) Deleting Chart for Section 1611.0 (C). The corresponding chart for Section 1611.0 (C) is deleted. (22) Amending Section 1612.0 (A). Section 1612.0 (A) is amended to read: "(A) Other collection and distribution systems such as laundry only gray water systems may be approved by the local Health Officer." (23) Amending Table 16 -1. Table 16 -1, Location of Gray Water Systems, is amended as follows: A) Deleted "100% expansion area" as relating to "Disposal Field." B) Changed the values for the following Irrigation/Disposal Field: - Building Structures - Water Supply Wells - Disposal Field 11