HomeMy WebLinkAbout03541 10/02/2001 16:50 9709842522 MELDOR PAGE 03
Norm Bacheldor
SE Job No. 21136.01
August 29, 2001
Page 2
Resign Criteria:
The single family home contains 2 bedrooms. The design flow is calculated as follows:
Single family hoaae — equivalent 2 bedroom population @ 2 person /bedroom = 4 persons.
From the Garfield County I. S. D. S. Regulation;
Max. Design flow (Qd) ' # of people x (avg. flow) x 1.5 gal/person/day.
Gallons per day per person for the subject house — 75 gal/person/day
Assume 8 people daily population
Qd = 4 =450 gal/day
The Orenco Systems Advantex AX -10 is adequate to treat wastewater from a 3 bedroom home utilizing a
1000 gallon septic tank. Attached is the manufactures technical information.
Treatment System Design:
Several treatment options have been considered however due to effluent quality, maintenance and
operation requirements, a compact recirculating trickling filter treatment system packaged in and on the
septic tank is the preferred method of treatment. The Orenco Systems Advantex -AX -10 is a ready to
install pre - manufactured package system that provides economical, quiet, odor free operation that provides
wastewater treatment which, exceeds the requirements of the EPA for secondary wastewater treatment.
Raw sewage inters a standard 2- compartment septic tank for conventional primary treatment. Clear zone
effluent is filtered and pumped to a distribution manifold in the Advantex filter pod via a pump /filter vault
assembly installed in the secondary septic tank compartment. Effluent percolates down through textile
media and is collected in the bottom of the filter pod. The vertical textile media provides approximately
40,000 SF of surface area for bio -mat attachment. The treated effluent is discharged out of the filter pod to
a recirculating splitter valve (RSV) which, splits the flow between return flow back to the septic tank and
flow to the dispersal drywell. During periods of no sewage loading all of the discharge is returned to the
tank. The return flow is discharged back to the secondary compartment. The Advantex recirculating
pump typically runs only 90 minutes per day. The Advantex AX -l0 is designed to provide treatment
resulting in effluent water quality parameter levels of 15 mg/L BOD and 15 mg/L TSS based on a design
flow of' 600 gpd.
Maintenance Protocol:
The treatment system shall be inspected on a regular basis and be properly maintained. Ownership of the
system and responsibility for construction, repair and maintenance will remain with the homeowner. The
homeowner shall retain the services of qualified personnel to inspect the JSTS's and to perform all
maintenance and repairs necessary to ensure that the system is installed properly, is in good operating
condition and is im compliance with the manufactures performance requirements.