2003-P06371 - new septic - Laserfiche WebLink

Home Browse Search

• Secondary T'reatment — Effluent from the clear zone of the septic tank flows into a lift tank. Inside of the lift tank will be installed an Orenco Systems, Inc. BiotubeTM pump vault and modified w�ell pump. Suspended paRicles larger than 1/8" are filter out by the BiotuberM pump '��t. _ . ��._ _-....,�� Treatment— Filtered effluent is discharged out of the lift tank through the BiotubeTM pump v,�u1� �o an above grade drain field. The effluent is applied over the drain field rock bed via a lateral distribution network. As the-effluent trickles down through the rock bed into the sand and soil, biochemical processes remove harmful viruses and bacteria. � � Q. ,:. ,. .. � . 6. Description of Treatment System - � , • Septic Tank —Two 1,250 gallon precast concrete septic tanks. Inlet and outlet of the ta.nks must have cast in place rubber fittings to create watertight seals. Install a 24" diameter heavy corrugated pvc pipe riser over maintenance openings. A watertight seal must be created between top of tank and the riser. Install a 24" diameter fiberglass riser cover with gasket, Orenco Systems, Inc. model # FL24G(or equivalent). Do not bury riser cover. • Lift Tank — 1,000 gallon precast concrete tank. Inlet of the tank must have cast in place rubber fittings to create watertight seals. Seal the outlet end of the tank. Install a 24" diameter heavy corrugated pvc pipe riser over maintenance opening above pump vault. A watertight seal must be created between top of tank and the riser. Install a 24" diameter fiberglass riser cover with gasket, Orenco Systems, Inc. model # FL24G(or equivalent). Do not bury riser cov,er. ; • Screened Pump Vault — Install an Qrenco Systems, Inc. model #PVtJ57-1819 pump vault in the lift tank through the maintenance hole. Install an Orenco Systems, Inc. modified well pump model � P50051 l, 115V, '/z hp, (or equivalent) in the flow inducer of the pump vault. Connect a schedule 40 pvc discharge pipe to pump and extend discharge pipe through riser wall. Install a camlock on the discharge pipe between pump and the riser for easy disconnect. Drill a 3/16" weep hole at the invert of the 90 degree bend in the discharge pipe to allow drain back. Install all high-pressure fittings. • Mound Drain Field— Cut any vegetation to a height of 2-3". Remove any trees or brush that are within the proposed drain field area. Rough up the area within the absorption area of the mound. Install clean washed sand meeting the requirements of State Code Chapter 7080.0170, subpart Sb, item 3, in the staked area of 38' x 83'. Create a level 63'L x ]0' W x 0.9' D, rock bed by installing clean sewer rock, meeting the requirement of State Code Chapter 7080.0170 over the washed sand as sho�vn in drawing detail. The elevation of the rock bed,��:::;hed sand interface shall be 111.1. Install the lateral net�vork above rock bed, (see follo�ving description). The 2