2001- Septic system info - Laserfiche WebLink

Home Browse Search

333 East Main Street P.O. Box 388 �``F Elk River, MN 55330 4Ija (612)441-7509 (800)554-7509 ECO SYSTEMS ENGINEERING,INC. Fax: (612)441-9176 Date: 9/29/00 Guillaume& Lillian Bastiaens 625 North Ferndale Rd. Wayzata, MN 55391 Re: Proposal for an new onsite sewage treatment system.. Current Conditions-The current configuration for the home septic system consists of three separate sewer systems as there are three separate sewer mains exiting the house at different locations. The three septic systems are comprised of four cesspools with small drainfields. Cesspools do not comply with State and Local codes. The system that exists on the West side of the property emits sewage at the surface, causing a health threat. City ordinance requires systems to be upgraded within ninety days if a health threat exits. Special Considerations-The sewer main that currently exits the home on the West side must be rerouted and connected to the basement floor drain that exists within an enclosed area where the well pressure tank and water softener are located. The basement floor drain exits the house at the Northeast side where new 4"schedule 40 pvc piping will be connected and routed to the new septic tanks. The sewer main that exits the South side of the home must also have new 4"schedule 40 pvc pipe connected and routed to the new septic tanks. Description of Onsite Wastewater System- System Sizing-The sewage treatment system is designed for a five bedroom home. Primary Treatment-One 1,250 gallon septic, one 1000 gallon septic tank. Secondary Treatment-Orenco Biotube effluent filter with level alarm installed at the outlet of the 2nd septic tank. Final Treatment- 1,250 gallon lift tank with pump discharging to 1,252 square feet of drainfield. Drainfield- 5 ea. 84' long x 3' wide level pressure dosed trenches with 2" laterals. Orifice shields placed below each orifice. Ball valves and valve boxes installed at the end of each lateral. Dosing Method- Drainfield will be pressure dosed with timed cycles with a control panel. Soil Conditions- The property is located within an area that is mapped as Hayden Loam according to the Hennepin County Soil Survey. Soil borings performed on the property revealed the depth from the surface to the seasonal high water table to be greater than 60"(see enclosed boring logs). Soil texture is fine sandy loam over a clay loam, soil sizing factor is 1.67 sq. ft./gpd, slope is 0%. Limitations-Our investigation, layout, design, and recommendations are based on data submitted. If conditions considerably different from those described in this report are encountered, we must be notified. If proposed construction is changed, we must be notified to evaluate the effect of the changes on the wastewater system. Any changes to the design must be approved by the designer and will be assessed additional design costs. If changes are made to the design without the knowledge and approval of the designer the design shall be void.