5a. Update on-site septic regulations

7 State Board of Registration for Professional Soil Classifiers, as per ND Century Code, Chapter 43-36-01, 2. “Sand” – is a soil texture composed by weight of at least twenty-five percent (25%) of very coarse, coarse, and medium sand varying in size from two (2) to 0.25 mm, less than fifty percent (50%) of fine or very fine sand, ranging in size between 0.25 and 0.05 mm and no more than 10 percent (10%) of particles smaller than 0.05 mm. “Septic Tank” – is a water-tight, covered receptacle, designed and constructed to receive the discharge from 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. “Setback” – is a separation distance measured horizontally. “Sewage” – is any water-carried domestic, commercial or agricultural waste, exclusive of footing and roof drainage or any residence or industry, agricultural or 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. “Septic Tank Effluent” – is that liquid which flows from a septic or aerobic tank under normal operation. “Site” – is the proposed on-site sewage treatment system area. “Slope” – is the ratio of vertical rise or fall to horizontal distance. “Soil Boring” – is any type of excavating capable of revealing in detail characteristics of soils penetrated. “Soil Characteristics, Limiting” – are those soil characteristics which preclude the installation of a standard system, including, but not limited to, evidence of seasonal high ground water table or bedrock closer than three (3) feet to the ground surface and percolation rates faster than one-half (1/2) minutes per inch or slower than sixty (60) minutes per inch. “Soil Texture Classification” – is where soil particle sizes or textures are specified in these regulations, they refer to the Guide for USDA Textural Classification.