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Home My WebLink About040-030-074 EHS24-0238 SITE PLAN PDFSSTTAANNDDAARRDD GGRRAAVVIITTYY SSYYSSTTEEMM DDEESSIIGGNN FFOORRMM Update: September 12, 2014 Staff Use Only Date Received: __________ Staff: __________________ A design will be reviewed when this form and the design drawings are submitted with an On-Site Wastewater System Construction Permit application and fees are paid. Parcel Identification APN #: ______________________________ ______________________________________ Applicant Name ______________________________________ Parcel Address ______________________________________ City State Zip ______________________________________ Subdivision Name/Division/Block/Lot TrakIt #: ______________________________ ______________________________________ Designer Name ______________________________________ Designer Mailing Address ______________________________________ City State Zip ______________________________________ Designer Telephone Number Design Parameters Dispersal Type: Drainrock Chamber Polystyrene Number of Bedrooms _____________ Daily Flow (gpd) __________gpd Septic Tank Capacity ___________gal Application Rate ________gpd/ft2 Designed Vertical Separation ________inches Ground Slope in Drainfield Area __________ % Drainfield Square Footage __________ Trench Width _____ inches Total Lineal Trench Length _________ ft Trench Depth _____ inches Depth of Fill over Drainfield (if applicable) _____ inches Curtain Drain Depth (if applicable) _________ f Certification of Design The undersigned Certified Installer or Certified Designer (circle one) has submitted this design based observed site conditions as shown on this design form and the drawings attached thereto. _________________________________________ System Designer Date The undersigned has reviewed this design on behalf of Butte County Public Health Department and determined it to be in compliance with state and local on-site regulations and ordinances. _________________________________________ Environmental Health Specialist Date Caution: This design approval is only valid when all the following conditions are met: The design is stamped “Approved” by Butte County Public Health Department The Wastewater Construction Permit has not expired; the Permit Expiration Date is 2 years from the date of issuance The system is installed by a certified installer or homeowner authorized by the Butte County Public Health Department Drainfield site conditions have not been altered to adversely affect conditions of design approvalThis section completed by Certified Installer or Designer This section completed by EH Form DG Barracks, Temporary RVs and Fire House 23 residents + 33 employees 040-030-074 255 Shoreline Drive, Suite 200 Redwood City CA 94065 Ironwood Commercial Builders, Inc.Dale Leda 650.482.6457N/A 2741 Cramer Lane Chico CA 95928 12 max5 2,897 1,500 + 5000 = 6,500 0.6 4,828 1,610 36 36 max 36 inch x N/A 8/12/2024 Update: September 12, 2014 WASTEWATER SYSTEM DESIGN CHECKLIST Owner’s name Assessor’s Parcel Number North arrow Property lines Any relevant site features such as cliffs, cut banks, irrigation canals, springs, rock outcrop, landslide areas, drainage ways, etc. within 200 ft of the primary and repair dispersal areas Any existing and/or proposed site improvements, such as buildings, pools, driveways, parking areas, easements, waterlines, etc. (please specify whether existing or proposed) Existing wastewater dispersal areas, if present Location and dimensions of designated primary and repair wastewater dispersal areas Test hole locations from Site Evaluation Existing and proposed wells within 200 ft of the primary and repair dispersal areas and neighboring wells within 100 ft of property lines Location and orientation of curtain drain Direction of slope in primary and repair dispersal areas Dispersal field orientation and layout Trench/bed dimensions and critical distances within layout D-Box/“T”/“L” locations Septic tank/pump chamber location Observation port location Scale of drawing shown on scale bar Cross Section Drawings: Dispersal trench Observation port Capping fill, if applicable Curtain drain, if applicable Note: Designer may use form attached for design drawing or may attached drawing on separate page, provided the elements identified in this checklist are included. This section completed by Certified Installer or DesignerSee C100, C300, and C500 N/A C500 C500 & C601 C500 N/A C500 C500 C500 & C600 C500 & C600 C500 C600 C600 N/A N/A C100 Update: November 8, 2010 Capping fill, if applicable Curtain drain, if applicable Site is at the corner of Potter Road and Skyway just outside of Chico, California. USDA Forest Service Justine Zeni 530-283-7872 2741 Cramer Ln, Chico CA 95928 0 0 0 0 034 47 N/A SEE FOLLOWING PAGES FOR SHEETS RELATED TO ONSITE SEPTIC DESIGN 24"X36" 1" = 30'scale 30 0 30 feet 60 EXISTING CONDITIONS LEGEND EXISTING CONDITIONS NOTES ” ” DRAWN DESIGNER STAMPS, LOGOS, AND SEALS PROJECT NAME DRAWING TITLE CHECKED ARCHIVE NO.DATE PROJECT NO. DRAWING SHEET NO. DATENO.REVISION / ISSUE OFSHEET United States Department of Agriculture Forest Service PACIFIC SOUTHWEST REGION CHICO SEED ORCHARD WORK CENTER PLUMAS REGION 5 PSW NATIONAL FOREST REGION 5 07/18/2024 NB BW SR 12970223R0008 7901 Stoneridge Drive, SUITE 360 PLEASANTON, CA 94588 (925) 396-7700 www.bkf.com EXISTING CONDITIONS C100 1 EH SEPTIC SUBMITTAL 8/12/2024 1" = 30'scale 30 0 30 feet 60 SITE UTILITY NOTES DB SITE UTILITY LEGEND SITE UTILITY KEYNOTES FDC DB DB DRAWN DESIGNER STAMPS, LOGOS, AND SEALS PROJECT NAME DRAWING TITLE CHECKED ARCHIVE NO.DATE PROJECT NO. DRAWING SHEET NO. DATENO.REVISION / ISSUE OFSHEET United States Department of Agriculture Forest Service PACIFIC SOUTHWEST REGION CHICO SEED ORCHARD WORK CENTER PLUMAS REGION 5 PSW NATIONAL FOREST REGION 5 07/18/2024 NB BW SR 12970223R0008 7901 Stoneridge Drive, SUITE 360 PLEASANTON, CA 94588 (925) 396-7700 www.bkf.com SITE UTILITY PLAN C300 1 EH SEPTIC SUBMITTAL 8/12/2024 DB DB DRAWN DESIGNER STAMPS, LOGOS, AND SEALS PROJECT NAME DRAWING TITLE CHECKED ARCHIVE NO.DATE PROJECT NO. DRAWING SHEET NO. DATENO.REVISION / ISSUE OFSHEET United States Department of Agriculture Forest Service PACIFIC SOUTHWEST REGION CHICO SEED ORCHARD WORK CENTER PLUMAS REGION 5 PSW NATIONAL FOREST REGION 5 07/18/2024 NB BW SR 12970223R0008 7901 Stoneridge Drive, SUITE 360 PLEASANTON, CA 94588 (925) 396-7700 www.bkf.com 1" = 30'scale 30 0 30 feet 60 SITE SEPTIC PLAN C500 1 EH SEPTIC SUBMITTAL 8/12/2024 DRAWN DESIGNER STAMPS, LOGOS, AND SEALS PROJECT NAME DRAWING TITLE CHECKED ARCHIVE NO.DATE PROJECT NO. DRAWING SHEET NO. DATENO.REVISION / ISSUE OFSHEET United States Department of Agriculture Forest Service PACIFIC SOUTHWEST REGION CHICO SEED ORCHARD WORK CENTER PLUMAS REGION 5 PSW NATIONAL FOREST REGION 5 07/18/2024 NB BW SR 12970223R0008 7901 Stoneridge Drive, SUITE 360 PLEASANTON, CA 94588 (925) 396-7700 www.bkf.com ’ ’ SITE SEPTIC DETAILS C600 1 EH SEPTIC SUBMITTAL 8/12/2024 DRAWN DESIGNER STAMPS, LOGOS, AND SEALS PROJECT NAME DRAWING TITLE CHECKED ARCHIVE NO.DATE PROJECT NO. DRAWING SHEET NO. DATENO.REVISION / ISSUE OFSHEET United States Department of Agriculture Forest Service PACIFIC SOUTHWEST REGION CHICO SEED ORCHARD WORK CENTER PLUMAS REGION 5 PSW NATIONAL FOREST REGION 5 07/18/2024 NB BW SR 12970223R0008 7901 Stoneridge Drive, SUITE 360 PLEASANTON, CA 94588 (925) 396-7700 www.bkf.com SITE SEPTIC DETAILS C601 1 8/12/2024EH SEPTIC SUBMITTAL ONSITE SEPTIC SYSTEM CALCULATIONS Chico Seed Orchard Work Center Plumas National Forest Chico, CA BKF Job No: 20231823-10 August 2024 Project Address:Potter Rd and Skyway, Chico CA BKF Job No:20231823-10 Date:8/9/2024 Calcs By:DJP Soil Investigation Observation: Soil Group C Number of Users: (1) Fire House= Peak Flow: Building Facility Unit Quantity Peak Flow (gal/unit/day) Total Peak Flow (gal/day) Fire House Office1 Employee 33 16 528 Fire House Shower Fixtures Fire House Shower2 Fixture 4 17.2 69 Σ =597 Septic Tank: Fire House Septic Tank sized for (2) x peak daily flow or 1500 gal minimum Min Tank Volume Req (gal)=597 Selected Tank Volume (gal)=1500 Min Tank Volume Req = 1,500 gal Required Septic Percolation Application Area Sizing A = Q/R 2016 Butte County Onsite Systems Manual Q (gal/day) =597 Q= Peak Daily Flow (gal/day) R (gal/day/ft^2) =0.6 Wastewater Application Rate for Soil Group C Weak Structure A (ft^2) =995 Required Infiltrative Area Leach Line Length SizingL = A/(A L )2016 Butte County Onsite Systems Manual A (ft^2) =995 Required Infiltrative Area AL (ft^2/ft) =3 Area per linear foot of trench for 36" wide trench L (ft) =332 Total length of leach line required for primary field *Provide space for reserve system equal to 100% of the length required for the primary system Onsite Septic System CalculationsChico Seed Orchard Work Center Soil investigation performed on 04/23/2024. Observed sandy clay loam with weak structure and no restrictive layers in primary drainfield area pits P1 and P2. Observed sandy clay loam with weak structure and consolidated restricted soil layer at 36" depth in expansion drainfield area pits P3 and P4. 1Fire house daily water usage to match office usage for 25 employees. Flow data from the 2002 US EPA Onsite Wastewater Treatment Systems Manual (Table 3-4) 2Four showers are provided as part of the fire station. Assumed daily usage by 4 person fire crew. Flow data from the 2002 US EPA Onsite Wastewater Treatment Systems Manual (Table 3-3) 25 office employees not living on site, plus 8 additional seasonal employees ( not living onsite) Fire House Facilities Project Address:Potter Rd and Skyway, Chico CA BKF Job No:20231823-10 Date:8/9/2024 Calcs By:DJP Soil Investigation Observation: Soil Group C Number of Users: (3) Barracks=6 occupants each; 18 total occupants (5) Temporary RV=1 occupant per RV Peak Flow: Building Facility Unit Quantity Peak Flow (gal/unit/day) Total Peak Flow (gal/day) Barracks Boarding House1 Person 18 100 1800 Temp RV Recreational Vehicle Park2 Occupant 5 100 500 Σ =2300 Septic Tank: Barracks + RV Septic Tank sized for (2) x peak daily flow or 1500 gal minimum Min Tank Volume Req (gal)=2300 Selected Tank Volume (gal)=5000 Min Tank Volume Req = 2 * Peak Daily Flow Required Septic Percolation Application Area Sizing A = Q/R 2016 Butte County Onsite Systems Manual Q (gal/day) =2300 Q= Peak Daily Flow (gal/day) R (gal/day/ft^2) =0.6 Wastewater Application Rate for Soil Group C Weak Structure A (ft^2) =3833 Required Infiltrative Area Leach Line Length SizingL = A/(A L )2016 Butte County Onsite Systems Manual A (ft^2) =3833 Required Infiltrative Area AL (ft^2/ft) =3 Area per linear foot of trench for 36" wide trench L (ft) =1278 Total length of leach line required for primary field *Provide space for reserve system equal to 100% of the length required for the primary system 2Temporary RV Trailer daily water usage to match recreational vehical parks with individual water sewer hookups. Flow data from the 2016 Butte County Onsite Systems Manual. Onsite Septic System CalculationsChico Seed Orchard Work Center Soil investigation performed on 04/23/2024. Observed sandy clay loam with weak structure and no restrictive layers in primary drainfield area pits P1 and P2. Observed sandy clay loam with weak structure and consolidated restricted soil layer at 36" depth in expansion drainfield area pits P3 and P4. 1Barracks daily water usage to most closely match boarding house flow of 100 gpd per person. Flow data from the 2016 Butte County Onsite Systems Manual. Barracks and RV Facilities Approximate property boundary per County GIS portal. Page 1 of 2 Page 2 of 2Site locationEnter site fromexisting gate onthe easternperimeter of theproperty.Accessible fromeither direction oftraffic onSkyway.