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Home My WebLink About07-04-2019 Septic DesignJoseph Olson D.B.A. Rusty Olson's--Soil and Percolation Testing Joseph J. Olson--MPCA License # 810 11481 Riverview Rd. NE, Hanover, MN 55341 (763) 498-8779 Fax (763) 498-8290 Revised July 4, 2019 Hendel Homes 3345 Fox Street Orono, Hennepin County This on-site Sewage Treatment System is designed for a Type 1 seven -bedroom home in accordance with the Minnesota Pollution Control Agency Chapter 7080 and local ordinances. The periodically saturated soils were located at 12-28 inches (mottled soil). Due to the periodically saturated soils, a pressurized mound system with 6 inches of rock will need to be installed to treat the septic effluent. The bottom of the treatment area must be located at least 3' above the saturated soils. This system is designed with 6 inches of rock. All neighboring wells are greater than 100 feet from proposed treatment areas The soils at a depth of 12" have a percolation rate averaging 9.6 MPI. Use the existing 2250 -gallon septic tank. Turn the existing 1300 -gallon lift station into a septic tank and install a new 1500 -gallon lift station. This will give you over the 3000 -gallons septic tank capacity needed. All new tanks need to be insulated if there is less than two feet of cover over the top of the tanks. Clean outs must be installed on the end of the laterals for maintenance. A 1500 -gallon pumping chamber will need to be installed to lift the effluent to the treatment area. The power supply and switches must be located outside the manhole and pumping chamber in a weatherproof enclosure. A warning device must be installed with light and sound devices; this is in case of a pump failure. A flow measurement device must be installed. Including but not limited to a water meter, event counter, running time clocks or electronically controlled dosing. With proper installation and maintenance, this system should have no problem in treating septic effluent effectively. Nothing other than gray water, (laundry, showers, etc.) Human water and toilet tissue should be disposed of into the septic tanks, Iron filters cannot go into the septic sstem. Garbage disposals are not recommended. Additives must not be used they may cause harmful damage to your septic system. It is recommended that you pump the septic tanks every two years. Since;jely, Joseph J. Olson rA �ys w L t M Q 2011 purple code MOn d Design www.SeptiCResource.com fvarc 14;91 Property Owner: Hendel Homes Date: 6/29/2019 Site Address: 3345 Fox Street PID: 0511723440007 Comments: instructions: = = enter data = adjust if desired = computer calculated - DO NOT CHANGE! 1) I' (bedroom Type I I Residential System 2) 1050 GPD design flow 3) Yes Garbage disposal or pumped to septic 50% larger tank with multiple comp/tanks 4) 3000 Gal Septic tank (code minimum) 3000 Gal Septic tank (design size / LUG req'd) Tank options: none s) 1.2 GPD/ft2 mound sand loading rate contour loading rate of 12 req's a min 87.5 ft. long rockbed 6) 10.0 ft rockbed width 88.0 ft rockbed length 7) 3.0 ft lateral spacing 3.0 ft perforation spacing (maximum of 3 for both) end feed manifold connection 8) I ' llaterals 86.0 feet long 29.0 perfs / lateral F 87 1 perfs total (1/2 a perf means the first pert starts at the middle feed manifold) 9) 7/32 inch perfs at feet residual head gives 0.56 gpm flow rate per perforation 771 for this perf size Et spacing, Ft pipe size on line 12, max perfs/lateral F 30 ,line #8 must be less > OK 10) 4.0 doses per day (4 minimum) 11) 263 gallons per dose (treatment volume) 2.00 5x 12) 2,00 inch diameter laterals must be used to meet "4x pipe volume" requirement 2.00 3x 13) 305 feet of 2.0 inch supply line leads to =gallons of drainback volume (Tip: "top feed" manifold to control the drainback) 14) 315 gallons TOTAL pump out volume (treatment + drainback) 15) 14 feet vertical lift from pump to mound laterals, leads to a: 16) 49 GPM G 42 feet of head, Pump requirement (note: >50gpm may require an extra 3-6' of head) 17) 1050 gal Dose tank (code minimum) 1500 gal Dose tank (design size / LUG req'd) at 29.41 gpi leads to a 18) 10.7 inch swing on Demand float, or timed dosing of6.4 min ON (confirm pump rate with drawdown (this delivers Average flow, =70% of Peak design flow) 9 hrs OFF test and adjust as necessary) 19) 12 inches from bottom of tank to "Pump OFF" float 20) 23 inches from bottom of tank to "Pump ON" float, orF36] inches to "Timer ON" float if time dosed 21) 26 inches from bottom of tank to "Hi Level" float, or inches to "Hi Level" float if time dosed ;221) 735 gallons reserve capacity (after High Level Alarm is activated) 3) 0.45 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)percent site slope (0-20% range) 11 (% downslope site slope, if different than upslope) s) 16 inches, or 1.3 ft. to Redox or other limiting condition (need at least 12" to be a Type 1) Treatment zone contains=inches of 0% soil credit, and =inches of 50% soil credit. Giving a: 6) 20 inch, or 1.7 ft. Sand Lift Mound CRITICAL FOR FUTURE CERTIFICATIONS!!! 7) 27.0 ft.Total ABSORPTION width (with sand beyond rockbed as follows.) 8) 0.0 ft. upslope and sideslope 17.0 ft. Downslope Individual slope ratios give BERM widths (topsoil beyond rockbed) of: a) 4:1 upslope ratio 11 ft. upslope berm sideslope 13 ft. sideslope berms downslope 31 ft. downslope berm Overall Dimensions: 10.0 1 ft. wide by 88.0 ft. long Rock bed 52 ft. wide by 114 ft. long Mound footprint 4" inspection pipe 18" cover on tap Upslope berth 11 .J 6 Downslope berm 31 12" cover on sides (6" loamy cap & 6" topsail) 1.7 Clean sand lift -7C _ _ _ _ 1.3 _ Depth to Limiting Lirnitinsg Condition — _-- — -- -- -_ — Absor tion Width 27.0 Note: For 4 to 1% slopes, Absorption Width is rneasured from the Bedequally in both directions. For slopes 31 %, Absorption Width is measured downhill from the upslope edge of the Bed. 33) Rock Bed: 10.0 ft. by 88.0 ft. by inches under pipe, plus 20% gives =yd' or *1.4= 42 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) 43.6 up + 158.9 downslope + 12.6 ends + 65.7 under rock =337 yd' or *1.4= 472 ton plus 20% 35) Loamy Cap: 48 ft. by 110 ft. 6" deep, plus 20% gives 118 yd' or *1.49 165 Ton 36) Topsoil: 52 ft. by 114 ft. 6" deep, plus 20% gives =yd' or *1.4= 185 ton I hereby cert' y that I have completed this work in accordance with all applicable ordinances, rules and laws. Rusty olson's Soil & Pere 810 6/29/2019 signer Signature Company License# Date Installer Summary 3000 gallon Septic tank (minimum) Tank options: none owb Barger LanK wi[,n rnuuiple cramp/ Lan KS 1500 gallon Dose tank (minimum) at 29.41 gpi 49 GPM @ 42 ft. of head, Pump required 10.7 inch swing on Demand float which translates to roughly 6.4 inches of float tether length if time dosing is required - >6.4 minutes ON time Et =hours OFF time 23 inches from bottom of tank to "pump ON" float, or 12 inches to "timer ON" float 26 inches from bottom of tank to "Hi Level Alarm" or 1 36 linches to "Hi level alarm" if time dosed 305 ft. of 2.0 inch supply line with end feed manifold connection (Tip: "top feed" manifold to control drainback) 20 inch, or 1.7 ft. Sand Lift Mound 10.0 ft. wide by 88.0 ft. long Rock bed 3 laterals 2.00 inch diameter 86.0 ft. long 3.0 ft. lateral spacing 7/32 inch perfs 3.0 ft. perforation spacing. No Effluent filter Et alarm 3 Iclean out a valve box assemblies 27,0 ft.Total sand ABSORPTION width (minimum) 0.0 ft. upslope and sideslope (sand beyond rockbed, minimum) 17.0 ft. Downslope (sand beyond rockbed, minimum) Specific slope ratios give BERM widths (topsoil beyond rockbed) of: 4:1 upslope ratio 11 ft. upslope berm 3:1 sideslope 13 ft. sideslope berms 4:1 downslope a 31 ft. downslope berm Upslope berm 11 t 1.7 1.3 Lim:ttir39 Conditic 4" inspection pipe r- 18" cover on top Clean sand lift Depth to Limiting -------------- Absorption Width 27 31 12" cover on sides (6" loamy cap & 6" topsoil) Note: For 0 to 1% slopes, Absorption Width is measured from the Bedequally in both directions. For slopes >1 %, Absorption Wdth is measured downhill from the upslope edge of the Beat Rock Bed: 30.0 yd or*1.4= 42 ton Mound Sand: 337 yd3 or *1.4= 472 ton Loamy Cap: 118 yd or *1.4= 165 ton Topsoil: 132 yd or *1.4= 185 ton inches under pipe calculation based on 3:1/4:1 slope from top of rockbe, 6" deep 6" deep 11 N INSPECTOR CHECKLIST - mound 3345 Fox Street WELL setbacks: 20' to pressure tested sewer line (5 psi for 15 min) 50' to everything 100' to dispersal area with shallow well PROPERTY LINES setback: 10' to everything Road setback: platted: 10' prop line. Metes Ft bounds: out of road easement, or outer ditch. LAKE f BLUFF setback: 20' far bluff. Lakes: GD _, RD NE Protected wetland Building setbacks: 10' for everything, 20' for dispersal area. WATERLINE under pressure se 10' to bed, tank €t sewer line. (else sewer Line > 12" below) Sewer line Et baffle connection (no 90's, 3' between 45's, slope min 1" in 8', max 2" in 8') (no depth reqs, clean out every 100', Sch 40 pipe) Septic tank and risers (water tight, insulated, proper depth, existing verified by pumping) mfg 3000 gallons none Riser over outlet, riser over inlet or center, and 6"+ inspection pipe over any remaining baffles. No effluent filter Et alarm Dose tank risers and piping (water tight, insulated, proper depth, drainback) mfg 1500 gallons dose pump 49 gpm 42 head VERIFY PUMP CURVE 6.4 rain ON 9 hr OFF F7 float setting drop 10.7 inches at 29.4 gpi "DESIGNED" 6.4 inches approx float tether length 315.0 gal dose divided by gpi "INSTALLED" = inches float drop (field corrected LABEL pump requirements and drawdown on riser or panel Cam lock reachable from grade - 30" max. J -hook weep hole. Supply line access (no hard 90"s) 2.0 inch supply pipe: Sch40, sloped 1/8"+, supported by 4" sch40 sleeve or compacted, and buried 6"+. splice box / control panel / electrical connections flow measurement: CT, ETM, time dosed, home water meter mound absorption area rough up mound rock dimensions 10.0 X 88.0 Sand Lift depth 20 inches. (Jar test : 2" sand leaves < 1l8" silt after 30 min) Absorption Sand beyond rock 0.0 upslope 17.0 downslope EBermed topsoil beyond rockbed 11 upslope 13 sideslope 31 downslope cover depth of 12-18"+ VERIFY 3 laterals (1-2' from edge of rock) 2.00 inch pipe size (Sch40 pipe Et fittings) 3.0 ft lateral spacing e 7132 inch perforations 3.0 ft perforation spacing Air inlet at end of laterals, and at top feed manifold if necessary. VERIFY clean outs (no hard 90's) 4" inspection pipe to bottom of rock, anchored VERIFY Abandon existing system - if necessary �Re-use existing tank certification monitoring plan and type well abandonment form - if necessary z I � E 3 2 u 2 F- � 2 � 2 15 b ) � t | t CL § 06 2 E ® a , � CL § E , ƒ ' 2 � m Ln W E c @ m � o �� Co ¥ k V-1 � m m k L .r k -b." IVL-� 2 � « A I � E 3 \ � 2 - 2 � 2 15 � � t | t CL § � � � ® a � k -tu k E ' 2 � m Ln W E c @ m � o �� Co ¥ k 0 � Ln k k -b." IVL-� 2 � « A I E 3 \ co 2 - 2 15 � � t | t CL § � � � ® a � k E A � CL � k -b." IVL-� 2 � « A a M § I E 0.2 \ co 2 - 2 15 : | t CL f � � k A � � ¥ � L a M § E 0.2 \ co 2 - 2 15 � | t � � � � a M § 0.2 \ co a- - � | t � a M § Property Owner / project: Property Address / PID: Parent matl's: landscape position: soil survey map units: Soil Observation Log Owner Information Hendel Homes 3345 Fox Street www.SepticResource_com vers 12.4 Date 516/2017 Soil Survey Information ❑ refer to attached soil survey 0 Till ❑ Outwash ❑ Lacustrine ❑ Alluvium ❑ Organic ❑ Bedrock ❑ Summit ❑ Shoulder 0 Side slope ❑ Toe slope L22D2 slope 7-12 % direction -Linear Soil Log #1 E] Boring ❑ Pit Elevation 952.7 Depth to SHWT 18 Inches Depth (in) Texture fragment % matrix color redox color consistence grade shape 0-4 Topsoil <35 1Oyr3/2 Friable Moderate Blocky 4-8 Clay Loam <35 1Oyr4/3 Friable Strong Blocky 8-18 Clay Loam <35 I Oyr5/4 Friable Strong Blocky 18-30 Clay Loam <35 IOyr5/3 I Oy4/8,1-6/1 Oy Firm Strong Blocky <35 loose loose single grain 35-50 friable weak granular blocky >50 firm moderate prismatic platy rigid strong massive Comments: 3345 Fax Street Soil Log #2 El Boring ❑ Pit Elevation 952.7 Depth to SH'WT 20 Inches Depth (in) Texture fragment % matrix color redox color consistence Grade shape 0-8 Topsoil <35 1Oyr4/2 Friable Moderate Blocky 8-20 Clay Loam <35 10yr5/4 Friable Strong Blocky 20-30 Clay Loam <35 10yr5/3 10y4/8,1 -6/10y Firm Strong Rloc� 3345 Fox Street Soil Log #3 ❑ Boring ❑ Pit Elevation 952.7 Depth to SHWT 28 Depth (in) Texture fragment % matrix color redox color consistence°rade shape 0-14 Topsoil <35 10yr3/2 Friable Moderate Block% 14-20 Sandy Loam <35 10yr4/3 Friable Strong Blocky 20-28 Clay Loam <35 10yr5/4 Friable Strong Blocky 28-36 Clay Loam <35 10yr5/4 IOy4/8,1-6/10y Firm Strong Blocky <35 loose loose single grain 35-50 friable weak granular blocky >50 firm moderate prismatic platy rigid strong massive I hereby certify thi work was completed in accordance with MN 7080 and any local reqs. Rusty Olson's Soil & Perc. 810 signer Signature Company License # 3345 Fox Street Soil Log #4 Boring ❑ Pit Elevation 952.7 Depth to SHWT 1$ Depth (in) Texture fragment % matrix color redox color consistence grade shape 0-6 Topsoil <35 10yr4/2 Friable Moderate Blocky 6-18 Clay Loam <35 10yr5/4 Friable Strong Blocky 18-24 Clay Loam 35 10yr5/3 10y4/8,1 -6/10y Firm Strong Blocky <35 loose loose single grain 35 - 50 friable weak granular blocky >50 firm moderate prismatic platy rigid strong massive <35 loose loose single grain 3s -5a friable weak granular blocky >50 firm moderate prismatic platy rigid strong massive 3345 Fox Street Soil Log #5 ❑ Boring ❑ Pit Elevation 952.7 Depth to SHWT 16 Depth (in) Texture fragment % matrix color redox color consistence grade shape 0-6 Topsoil <35 10yr4/2 Friable Moderate Blocky 6-16 Clay Loam <35 10yr5/4 Friable Strong Blocky 16-24 Clay Loam <35 10yr5/3 10y4/8,1-6/l0y Firm Strong Blocky <35 loose loose single grain 35-50 friable weak granular blocky >50 firm moderate prismatic platy rigid strong massive <35 loose loose single grain 35-50 friable weak granular blocky >50 f n -n moderate Prismatic platy rigid strong massive 1 hereby certify this ork was completed in accordance with MN 7080 and any local reqs. Rusty Ulson's Soil & Perc. 810 signer Signature Company License # Property Owner / project Property Address / FID: Parent matl's: landscape position: soil survey map units Soil Observation Log Owner Information Hendel Homes 3345 Fox Street www.SepticResource.com vers 12.4 Date 5/6/2017 Soil Survey Information ❑ refer to attached soil survey Till ❑ Outwash ❑ Lacustrine ❑ Alluvium ❑ Organic ❑ Bedrock Summit ❑ Shoulder 0 Side slope ❑ Toe slope L22ll2 slope 7-12 % direction- Linear Soil Log 46 2 Boring ❑ Pit Elevation 952.7 Depth to SHWT 18 Inches Depth (in) Texture fragment % matrix color redox color consistence grade shape 0-14 Topsoil <35 10yr4/2 Friable Moderate Blocky 14-20 Sandy Loam <35 10yr5/4 Friable Strong stocky 20-30 Sandy Clay Loam <35 1Oyr5/3 Friable Strong Bloch 18-30 Clay Loam <35 10yr5/3 10y4/8,1 -6/10y Firm Strong Blocky <35 loose loose single grain 35-50 friable weak granular blocky >50 firm moderate prismatic platy rigid strong massive Comments: Property Owner / project: Property Address / PID: Soil Observation Log www.SeoticResource.com vers 12 Hendel Homes 3345 Fox Street Owner Information Date 6/29/2019 Soil Survey Information ❑ refer to attached soil survey Parent matl's: Till ❑ Qutwash ❑ Lacustrine ❑ Alluvium ❑ Organic ❑ Bedrock landscape position: ❑ Summit ❑ Shoulder 0 Side slope ❑ Toe slope soil survey map units: L22ll2 slope % direction- Linear Soil Log #7 ❑� Boring ❑ Pit Elevation 952.7 Depth to SHWT 20 Inches Depth (in) Texture fragment %fl matrix color redox color consistence grade shape 0-10 Topsoil <35 10yr3/2 Friable Moderate Blocke 10-16 Clay Loam .,3 IOyr4/3 Friable Strong Blocky 16-20 Clay Loam <35 10yr5/4 Friable Strong Blocky 20-26 Clay Loam <35 1Oyr5/4 1Oy4/8,1-6/10y Firm Strong Blocky <35 loose loose single grain 35-50 friable weak granular blocky >50 firm moderate prismatic platy rigid strong massive Comments: J 445 r'ox Street Soil Log #8 0 Boring ❑ Pit Elevation 952.7 Depth to SHWT 12 Inches Depth (in) Texture fragment % matrix color redox color consistence grade shape 0-6 Topsoil <35 10yr4/2 Friable Moderate Blocky 6-12 Clay Loam <35 10yr5/4 Friable Strong Blocky 12-20 Clay Loam <35 10yr5/3 10y4/8,1-6/10y Firm Strong Blocky 3345 Fox Street Soil Logue ❑ Boring ❑ Pit Elevation Depth to SHWT Depth (in) Texture fragment % matrix color redox color consistence grade shape X35 loose loose single grain 35-50 friable weak granular blocky >50 firm moderate prismatic platy rigid strong massive <35 loose loose single grain 3S-SO friable weak granular blocky >50 firm moderate prismatic platy rigid strong massive <35 loose loose single grain 35-50 friable weak granular blocky >50 firm moderate prismatic platy rigid strong massive <35 loose loose single grain 35-50 friable weak granular blocky X50 firm moderate prismatic platy rigid strong massive <35 loose loose single grain 35-50 friable weak granular blocky >50 firm moderate prismatic platy rigid strong I massive 1 hereby certi work was completed in accordance with MN 7080 and any local reqs. Rusty Olson's Soil & Pere. 810 Designer Signature Company License # Percolation Test Data Sheet Lic.#810 Percolating test readings made by: Rusty Olson's Perc. starting at 10:15 A.M. On 5/07/17 Location: 3345 Fox Street 'Hole numner: r Date hole was prepared: 5/06/17 Deptn of hoe bottom ,121°_ incnes, Diameter of hole _6°° inches. Sci+ Cala from test hole: 3epth, inches Soil texture 0-4 Topsoil 10yr312 4-8 Loam 10yr413 8-" 2 Clay loam 10yr5/4 Method of scratching side wall: Knife Depth of gravel in bottom of hole 2 inches: Date of initial water filling 5107/17 depth of initial water filling 12 inches above the hole bottom Viemoo used to maintain at least 12 inches of water depth in hole for at least 4 hours Automatic Siphon Maximum water depth above hole bottom during tests 6 inches 10:29 10:59 61° 3.2 9.4 - - 11:06 11:36 6" 3.2 9.4 11:37 12:07 6" 3.1 9.7 AVERAGE FERC. RATE 9.5 MPI Percolation Test Data Sheet Lic.#810 Percolating test readings made by: Rusty Olson's Perc. starting at 10:15 A.M. On 5/07117 LG -Cation: 3345 Fox Street Hole number: 2 - Dare Dare role was prepared: 5106/17 .-)epi; � of hole bottom ,12"_ incnes, Diameter of hole 6" inches. Sci: data from test hole: Depth, inches Soil texture 0..8 Topsoil 10yr412 6'12 Clay loam 10yr514 Method of scratching side wail: Knife Depth of gravel in oottom of hole 2 inches: Date of initial water filling 5/07/17 depth of initial water filling 12 inches above the hole bottom Method used to maintain at least 12 inches of water depth in hole for at least 4 hours Automatic Siphon Maximum water depth above nole bottom during tests 6 inches i ime Time Depth Drop in 120 Perc Rate 10:30 11:00 6" 3.6 8.3 11:05 11:35 6" 3.4 8.8 1:38 12:08 6" 3.3 9.1 AVERAGE FERC. RATE 8.7 MPI Percolation Test Data Sheet I ic.#810 Percolating test readings made by: Rusty Olson's perc. starting at 10:15 A.M. On 5107117 vocation: 3345 l=ox Street Hoie number: 3 Date hole was prepared: 5/06117 Dep:n of hose bottorr. „12"_ inches, Diameter of hole 6" inches. Sol; data from test hole: — — Depth, inches Soil texture 3`12 Topsoil 10yr3/2 iviethod of scratching side wall: Knife Depth of gravel in nottom of hole 2 inches: Date of initial water filling 5/07/17 depth of initial water filling 12 inches above the hole bottom Method used to maintain at least 12 inches of water depth in hole for at least 4 hours Automatic Siphon Maximum water depth above nole bottom during tests 6 inches I ,me Time Depth Drop in H2O Perc 10:31 11:01 8" 2.9 10.3 11:04 11:34 6" 2.8 10.7 11:39 12:09 6" 2.7 11.1 Percolation Test Data Sheet Lic.#819 Percolating zest readings made by: Rusty Olson's Perc, starting at 10:15 A.M. On 5197/17 _ocation: 3345 Fox Street mole number: 4 Date hole was prepared: 5/96/17 Depth of hole bottom—12°'_ inches, Diameter of hole 6" inches. Soil data from test hole: Depth, inches Soil texture 0-6 Topsoil 10yr4/2 6-12 Clay loam 10yr5/4 Method of scratching side wall: Knife Depth of gravel in bottom of hole 2 inches: Date of initial water filling 5/07/17 depth of initial water filling 12 inches above the hole bottom Method used to maintain at least 12 inches of water depth in hole for at least 4 hours Automatic Siphon Maximum water depth above hole bottom during tests 6 inches 10:32 11:02 6" 3.2 9.4 11:03 11:33 6" 3.2 9.4 11:40 12:10 6" 3.1 9.7