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Minnesota Rules, Chapter :7080.1100,. Subd. 84 shall have a three-foot: vertical separation <br />between the bottom soil inflItrative surface and the periodically saturated soil and/or bedrock. <br />Existing systems that have. no more than a fifteen (15) percent reduction in this separation <br />distance (a separation distanceno Ws than 30.6 inches) to account for settling of sand or soil, <br />normal variation of separation distance measurements and interpretation of limiting Iayer <br />characteristics may be considered compliant under this Ordinance. The vertical. separation <br />measurement shall be made outside.:the. area of system influence but in an..area.of similar soil. <br />Minnesota Rules, Chapter 70S..0.1500,.5ubd.:4. <br />(c). Holding Tanks <br />Sewage holding tanks may be.considered for installation on..pmviously developed sites,. <br />as a temporary method for periods of up to one. (1) year; during which time measures are being <br />ta.ken . to% provide municipal sewer service.or the instaIlation.of.an approved system as proyided in <br />this Ordinance; Holding tanks may be considered on a permanent basis for nonresidential, low - <br />water use establishments generating. less than one. hundred.fMy (150) gallons per day of waste, <br />subjcet to approval. by the department and the. issuance of a certiftcatc :of compliance; H..oldin. g. <br />tanks may .also be considered. for floor drains for vehicle parking areas and existing facilities <br />potentially generating.hazardous. waste. <br />(d) Setbacks <br />The following setback requirements arein addition to the setbacks required in Table VI <br />in Minnesota Rules Chapter 7080M 50.F: <br />e VII; Minimum setback <br />tank, holding f Absorption <br />I <br />ad: PonL (D[faun) Times New Rnman, 12 pt: <br />