1976.10.18 ORD 1976-132 - Laserfiche WebLink

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be less than twelve (12) inches below the bottom of the outlet baffle or submerged pipe, or if the bottom of the scum layer is less than three (3) inches above the bottom of the septic tank outlet baffle or submerged pipe, the owner or agent may arrange for the removal and sanitary disposal of sludge and scum from the tank; provided that such requirement for measuring shall be waived for any septic tank which is cleaned as indicated at least once each calendar year. (2) At least once each year the owner of any system equipped with a distribution box may arrange for the opening of the distribution box and the removal of any settled solids therein. Such material may be disposed of to the septic tank or by other means acceptable to the Plumbing Inspector. (3) At least once between May 1 and June 30 of each year the depth of liquid in each seepage pit may be measured. When, as a result of such measurement it is found that the liquid level in the pit is less than one foot below the inlet, a second measurement shall be made eight (8) to twelve (12) hours after the first measurement, during which time no liquid shall be discharged to the seepage pit. If, as a result of the second measurement, it is found that the liquid level in the pit has not lowered at least two (2) feet during the indicated period of time, an additional seepage pit or other acceptable soil absorption system shall be provided. (4) Servicing of septic tanks and soil absorption units shall conform to the Minnesota Department of Health and Minnesota Pollution Control Agency specifications. Disposal of sludge and scum from the system shall be: (a) Into a municipal sewer disposal system where practicable . (b) In the absence of a public sewer, at a disposal site approved by the Plumbing Inspector. (c) Sludge shall not be discharged into any lake or watercourse, nor upon land without burial. -16- IY