Comp Plan 1974-1977 FILE #1 - Laserfiche WebLink

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"LAWH AREA" The area bounded by the dimensions required for the proper location of the soil treatment area. "MOTTLING" ~ zone of chemical oxidation and reduction activity, appearing as ~ patches of red, brown, orange and gray. "MOUND SYSTEM" A system where the soil treatment area is built above the Qround i[6 overcome Timits imposed by proximity to water table or bedrock, or by r~pidly or slowly permeable soils. "PERCOLATION RATE" The time rate of drop of a water surface in a test hole as specified in SecTion 4 of this Ordinance. I'PLASTIC LIMITI' A soil moisture content below which the soil may be manipulated for purposes of installing a soil treatment system, and above which manipulation will cause compaction and puddling. If a fragment of soil can easily be rolled into a wire 1/8 inch in diameter, the moisture content is above the plastic limit. If the soil is dry enough to be friable and falls apart when rolling it into a wire, the moisture content is below the limit, and the soil may be manipulated. The standard method of determining the plastic limit is specified in American Association of State Highway Officials (AASHO) Designation: #T 90-61. "SAND" A soil texture composed by weight of at least 25 percent of very coarse, coarse, and medium sand varying in size from two to 0.25 mm, less than 50 percent of fine or very fine sand ranging in size between 0.25 and 0.05 mm, and no more than ten percent of particles smaller than 0.05 mm. "SEEPAGE PIT" (or leaching pit or dry well) An underground pit into which a sewage ~ank dis~ges sewage or other liquid waste and from which the liquid seeps into the surrounding soil through the bottom and openings in the side of the pit. "SETBACK" A separation distance measured horizontally. "SEWAGE" Any water carried domestic, commercial or agricultural waste, exclusive o--f-footing and roof drainage or any residence, or any industry, agricultural, er commercial establishment or other structure, whether treated or untreated, and includes but is not limited to liquid waste produced by bathing, laundry, culinary operations and liquid wastes from toilets and floor drains. "SEWAGE TANK" A watertight tank used in the treatment of sewage. Includes, but is not l'imited'to septic tanks and aerobic tanks. "SEWAGE TANK EFFLUENT" That liquid which flows from a septic or aerobic tank under normal operation. "SEPTIC TANK" Any watertight, covered receptacle designed and constructed to receive the discharge of sewage from a building sewer, separate solids from liquid, digest organic matter, and store solids through a period of detention, and allow the clarified liquids to discharge to a soil treatment system.