08-06-2020 Septic design - new - Laserfiche WebLink

Home Browse Search

.3) D.45 gpd/ft2 Absorption area Soil Loading Rate, which gives a mound ratio of 2.7 (minimum) (this must match the soil boring log) desired mound ratio 2.7 4) 15 percent site slope (0-20% range) 15 (% downslope site slope, if different than upslope) 5) 20 inches, or 1.7 ft. to Redox or other limiting condition (need at least 12" to be a Type 1) Treatment zone containsFD inches of 0% soil credit, and ®inches of 50% soil credit. Giving a: 6) 16 inch, or 1.3 ft. Sand Lift Mound CRITICAL FOR FUTURE CERTIFICATIONS! 11 7) 26.8 ft.Total ABSORPTION width (with sand beyond rockbed as follows:) 8) 0.0 ft. upslope and sideslope 16.9 ft. Downslope Individual slope ratios give BERM widths (topsoil beyond rockbed) of: 9) 4:1 upslope ratio 9 ft. upslope berm 0) 1 3:1 Isideslope 14 ft. sideslope berms t) 1 3:1 Idownslope 3D ft. downslope berm 2) Overall Dimensions: 9.9 1 ft. wide by 63.0 ft. long Rock bed 49 ft. wide by 91 ft. long Mound footprint 4" inspection pipe 18" corner on top Upstope berm Downslope berm 30 12" cover on sides (6" loamy cap &6" topsoil) 1.3 Clean sand lift 1�.7 Qepth to Limiting Limiting, Canditicsn Absorption Width Note: For 0 to 1% slopes, Absorption Wdth is measured from the Bedequally in both directions. For slopes >1%, Absorption !-1�idth is measured downhill from the upslope edge of the Bed. 33) Rock Bed: 9,9 ft. by =ft. by inches under pipe, plus 20% gives =yd3 or *1.4= 29 ton 34) Mound Sand: (note: volume is based on 3:1/4:1 slope from top of rockbed, Exchange sand for loamy cap if desired) 20.8 up + 127.6 downslope + 16.1 ends + 48.1 under rock = 255 yd' or *1,4= 357 ton plus 20% 35) Loamy Cap: 45 ft. by $7 ft. 6" deep, plus 20% gives =yd' or *1.4= 122 ton 36) Topsoil: 49 ft, by 91 ft. 6" deep, plus 20% gives 99 yds or *1.4= 139 ton I hereby cer ' y that I have completed this work in accordance with all applicable ordinances, rules and laws. Rusty Olson's Soil i3 Perc 810 8/6/2020 signer Signature Company License# Date