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SEEPAGE PIT FILTER FABRIC OR UNTREATED BUILDING PAPER TWO–PART EPDXY, TYP. RISER–TANK JOINTS MUST BE WATER–TIGHT NATIVE GRADE FILTER FABRIC OR UNTREATED BUILDING PAPER DISTRIBUTION PIPE � I I j 5' M/N. I S - 2' PER 100 LF. MAX. ORIFICES FACE DOWNWAR 4"0 PERF. PIPE. EXTEND TO BOTTOM ON PIT SOIL DRAIN ROCK NATIVE SC 18" DEEP TO BE FILTER FABRIC OR UNTREATED BUILDING PAPER I '1 36I i /_ 4" PERFORATED DISTRIBUTION PIPE WITH 0 12" o 0 0 o 0 0 0 0, 24' • 0/5POOAL i/�ENC/ /SSC%/ONS t�---48' j NOT TO SCALE FIBERGLASS LID WITH STAINLESS STEEL BOLTS 24" DIA. RIBBED PVC RISER AND NEOPRENE GASKET, TYR.WITH NEOPRENE GROMMETS AT - �- ALL PENETRATIONS, TYP. 4" ABS INLET/ TEE TIGHT LINE FROM DWELLING PER UPC TWO–COMPARTMENT — RE/NFORCED CONCRETE SEPTIC TANK. MUST BE WATER TIGHT. NOTE: BED TANK ON SELECT BACKFILL WITH NO ROCKS LARGER THAN 1-1/2' 2 SEPT/C FA/VK ` NOT TO SCALE 4" 0 GRAVITY FEED UNE FROM SEPTIC TANK ENSURE JOINT WITH D–BOX IS WATER TIGHT CONCRETE DISTRIBUTION SET I I 5/8 ORIFICES FACING DOWNWARD. MAXIMUM PIPE GRADE = 2 INCHES PER 100 L.F 1-1/2" OR 2-112" DRAIN ROCK WASHED FREE OF FINE MATERIAL REMOVE SMEARED OR COMPACTED SURFACES FROM SIDEWALLS PRIOR TO BACKFILLING. DO NOT WALK IN TRENCHES. CONCRETE LID ` KNOCK–OUT (TYP.) r COVER D -BOX W/ 12" SOIL COVER '3 D/S F BOX -.-_....-_... NOT TO SCALE 4" TIGHTLINE TO DISPOSAL TRENCH CONCRETE OR COMPACTED EARTH BASE DESIGN DATA GENERAL DESIGN DATA Application: 5 bedroom single family dwelling Water supply: Community water supply Septic tank: 2000 gallon septic tank Percolation tests:: See original subdivision data Maximum daily design flow: 600 gpd Disposal trench length required: 4 ® 75 I.f. Seepage pits: 4 ® 48"0 x 25' deep OWNER'S RESPONSIBILITIES 1. All septic systems, regardless of type, have finite life spans and as such will not operate indefinitely. In accepting this plan, the owner understands and accepts that repair and/or replacement of all or portions of this system will likely be required at some time in the future. 2. Proper and diligent monitoring and maintenance will maximize the life of this system and is required. Monitoring & maintenance guidelines were prepared for this system and were submitted with these plans to the original owner; these guidelines must be understood and implemented for the system to function reliably. All subsequent owners must secure a copy of, understand, and implement the monitoring and maintenance guidelines or this design will be considered invalid. 3. This system is designed to accommodate a finite quantity of domestic wastewater generated by a single–family dwelling. Non–residential wastewater will not be treated properly by this system and will damage its components. Wastewater generation exceeding the daily design flow rate listed elsewhere on these plans is likely to damage the system or cause failure and is strictly prohibited. 4. Al toilets and shower heads connected to this system must meet the following specifications: toilets shall hove a maximum flush rate of 1.6 gallons per flush; shower heads shall have a maximum flow rate of 2.5 gallons per minute. 5. Garbage disposal units will increase the need for septic tank pumping, will increase the treatment load on the system, and will likely reduce the system's functional life. These units, therefore, are strongly discouraged. 6. Recreational vehicle holding tank chemicals can damage this system's microbiology and must not be discharged into the system. 7. The creation of cut banks below the disposal or replacement areas increases the possibility of interception and surfacing of migrating effluent and should always be avoided. Cut banks below the disposal or replacement areas are created solely at the risk of the owner. B. The disturbance of native soils within or below the disposal or replacement areas increases the possibility of soil structure damage and may lead to disposal field failure. Disturbance of native soils within or below the disposal or replacement areas by any means including vehicular traffic, grading, livestock, etc. is prohibited and will invalidate this design. INSTALLER'S RESPONSIBILITIES 1. Construction of this septic may be undertaken only after obtaining a Permit from the regulatory outhority(ies). Do not begin construction prior to approval of this design and issuance of a permit by the regulatory outhority(ies). The owner and/or installer of this system is/are solely responsible for identifying and obtaining any other permits which may be required for construction of this system. 2. Inspections during construction by the designer and, in some cases, the regulatory authority, are required. The installer and/or owner are solely responsible for contacting the designer and/or regulatory authority at least 24 hours in advance of each required inspection. Every effort will be made to respond within 24 hours, however additional notice may sometimes be required. 3. The permit and an approved set of design documents must be on the job site at all times. 4. The installler and/or owner are solely responsible for ensuring that all property boundaries are accurately marked, that all appropriate setbacks are observed, and that underground and/or overhead utilities and/or utility easements are identified prior to construction. These design documents may not show all present utilities. 5. Under no circumstances shall the disposal or replacement areas, or the relative positions of the other system components, be modified without the prior consent of the designer and the regulatory outhority(ies). 6. If the soil in the disposal area can be formed into a ribbon it is too wet to excavate. Do not remove vegetation, operate equipment, or otherwise manipulate soils in the disposal area until receiving approval from the designer. 7. Disturbance of native soils in the disposal and/or replacement areas and for a distance of 50 feet below the disposal or replacement areas may damage the permeability of the soil column and cause premature system failure. Do not allow vehicular traffic, construction equipment, or livestock in the area within or below the disposal or replacement areas. 8. Do not direct concentrated surface water runoff onto adjacent properties. 9. The OSI Simplex control panel utilizes magnetic motor contactors that can cause noise and/or vibration in the dwelling if mounted on the dwelling's exterior wall. Coordinate panel location with the owner prior to mounting to avoid conflicts. 10. All disturbed areas shall be seeded at a rate of 5 lbs./1000 s.f. with blando brome, annual rye, or other approved grasses. Apply fertilizer at a rate of 250 lbs./acre and straw mulch at a rate of two tons/acre. INSPECTIONS BY THE DESIGNER Inspections by the designer are required at the following stages of construction: 1. Layout — The location and layout of the disposal trenches must be approved by the designer prior to construction. Contractor is responsible for laying out disposal trenches in advance of the inspection. 2. Open Trench — After disposal trenches have been excavated and curtain drain trench has been excavated (if required), but prior to placing drain rock, Septic tank should be on site. 3. Final — When the system is complete in accordance with the approved plans. All system components must be in place and operational. These limited inspections do not allow for detailed examination of all system components and workmanship and thereby provide only an indication of the installer's work. The installer is responsible for all workmanship and materials utilized on the project and for the means and methods of construction. Re—inspections required due to installer error will be billed to the owner as extra work. Proprietary components are manufactured by Orenco Systems, Inc. (OSI), 814 Airway Avenue, Sutherlin Oregon. OSI components are distributed by Sender's Hardware in Mountain Ranch, Colaveras County; Tel: (209) 754-1074. F� F � h N X o �t�ONQ N O LL X 0) – O "D P4 W Zoe 5-1.7 VONtM4 '., QQQO m O O a �� W O O O F� F � h N X o �t�ONQ N O LL X 0) a m G%0; "D P4 W Zoe 5-1.7 VONtM4 LL H N N u C�7 N a a �� z t y .. .I l