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Home My WebLink About05-02-2019 Septic DesignJoseph Olson D.B.A. Rusty O1son's--Soil and Percolation Testing Joseph J. Olson--MPCA License # 810 11481 Riverview R€1. NE, Hanover, MN 55341 (763) 498-8779 Fax (763) 498-8290 Revised May 2, 2019 November 12, 2018 Mark Beltrand 1860 West Farm Road Orono, Hennepin County This on-site Sewage Treatment System is designed to change a Type 1, three-bedroom house system into a Type 1, four-bedroom house system in accordance with the Minnesota Pollution Control Agency Chapter 7080 and local ordinances. The periodically saturated soils were located at 12-16 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. Th is system is designed with 6 inches of rock All neighboring wells are greater than 50' from proposed treatment areas. The soils at a depth of 12" have a percolation rate averaging 14 MPI. The existing tanks may be moved and used upon approval of the local inspector. 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. Use '/4 -inch perforations on the laterals. A I000 -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 system. 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. Sincerely, Joseph J. Olson S 87°47' 57" E 260.12l \ p'\ \♦ \ \t \\ t \ \ \ \ \ \\\\\� Z` ��\' y ib \ sl \\y `\ \ LUT" 18 Li iq i \\� \\' '`•� \\\A��\\\\� ��` \\\ \\\ \\ `\\ `1 t\I \ jCa N I r1 \ \ 3 \°\ \\ \\\ r ` T*1 CN z \ \ \\ \\ \ }\\ DRIVEWAY (H) }0 I EXISTING BARN,. + f rl ! 1 f-- J k It F f CiFAVEL ` f - DRIVEWAY IH) `/ --vim '•--- cw.q y� % _tas� — —fez---_ __ � ��.\,� •\ 1 I �� _ .... j.srf' 1 (PROPOSED 4 *-ham—1 ��! f� /� �.�i ��/—�. —_�� /��\•l\f`'1 F'-�,* i WAY � t f'-- rD P. EMSI 'EXISTwGy paw \4 \ I r SFE) r ! \ g t®a 1 ! F 1 Spy—� I �� car, \/a��• `. / � \ `moi ,..' -,.,..L_ }1 � � `~�� \� \ \\ •\\ \ \\ \e nwr \ ta) r/ /�/ 4/9 r 2011 purple code Mound Design www.SepticResource.com (vers 15.2) Property Owner: Mark Beltrand Date: 11/12/2018 Site Address: 1860 West Farm Road PID: 2711823430018 Comments: Add 1 bedroom to a 3 bedroom mound instructions: E71 = enter data = adjust if desired = computer calculated - DO NOT CHANGE! 1)bedroom Type �I Residential System 2) 340 GPD design flow 3) Yes Garbage disposal or pumped to septic 50% larger tank with multiple comp/tanks 4) 1500 Gal Septic tank (code minimum) 1500 Gal Septic tank (design size / LUG req'd) Tank options: none s) 1.2 GPD/ft2 mound sand loading rate contour loading rate of F 12 req's a min 38 ft. long rockbed C) 10.0 Ift rockbed width 12.0 ft rockbed length 7) 3.0 ft lateral spacing 3.4 ft perforation spacing (maximum of 3 for both) Lend feed manifold connection 8) laterals 10.0 feet long 4.0 perfs / lateral 12 perfs total (1 /2 a perf means the first perf starts at the middle feed manifold) 9) 1 /4" inch perfs at feet residual head gives 0.74 gpm flow rate per perforation for this perf size Et spacing, Et pipe size on line 12, max perfs/lateral = 25 , line #8 must be less — OK 101 4.0 doses per day (4 minimum) 11) 75 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) 200 feet of 2.0 inch supply line leads to34 gallons of drainback volume (Tip: "top feed" manifold to control the drainback) 14) 184 gallons TOTAL pump out volume (treatment + drainback) 15) 18 feet vertical lift from pump to mound laterals, leads to a: 16) 38 GPM @ 33 feet of head, Pump requirement (note: >50gpm may require an extra 3-6' of head) 17) 500 gal Dose tank (code minimum) 1000 gal Dose tank (design size / LUG req'd) at 25.00 gpi leads to a 18) 7.4 inch swing on Demand float, or timed dosing of4.8 min ON (confirm pump rate with drawdown (this delivers Average flow, =70% of Peak design flow)Mhrs OFF test and adjust as necessary) 19) 12 inches from bottom of tank to "Pump OFF" float 20) 19 inches from bottom of tank to "Pump ON" float, or 12 inches to "Timer ON" float if time dosed 21) 22 inches from bottom of tank to "Hi Level" float, or 32 inches to "Hi Level" float if time dosed 22) 450 gallons reserve capacity (after High Level Alarm is activated) 0.45 gpd/ftz Absorption area Soil Loading Rate, which gives a mound ratio of 2.7 1 (minimum) (this must match the soil boring log) desired mound ratio 2.7 percent site slope (0-20% range) �5 (% downslope site slope, if different than upslope) 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: 20 inch, or 1.7 ft. Sand Lift Mound CRITICAL FOR FUTURE CERTIFICATIONS! L! 27.0 ft.Total ABSORPTION width (with sand beyond rockbed as follows:) 0.0 ft. upslope and sideslope 17.0 ft. Downslope Individual slope ratios give BERM widths (topsoil beyond rockbed) of: 4:1 upslope ratio 12 ft. upslope berm 3:1 sideslope 13 ft. sideslope berms 4:1 downslope 21 ft. downslope berm Overall Dimensions: 10.0 1 ft. wide by 12.0 ft. long Rock bed 43 ft. wide by 38 ft. long Mound footprint 4" inspection pipe f-- 18" cover on top berm 12 1.7 Limftr'ng Condition Clean sand lift ----------------- Depth to Limiting AbsorDtion Width berm 1 21 12" cover on sides (6" loamy cap &6" topsoil) 27.0 ---- -- I_. .. Note: For O 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 Bed. Rock Bed: 10.0 ft. by 12.0 ft. by inches under pipe, plus 20% gives =yd' or *1.4= ®ton Mound Sand: (note: volume is based on 3:114:1 slope from top of rockbed, Exchange sand for loamy cap if desired) 13.2 up + 27.9 downslope + 11,1 ends + 8.5 under rock = 73 yd' or *1.4= 102 ton plus 20% Loamy Cap: 39 ft. by 34 ft. 6" deep, plus 20% gives Topsoil: 43 ft, by 38 ft. 6" deep, plus 20% gives I hereby certify that I have completed this work in accordance Designer Signature 30 yd' or *1.4= 42 ton 37 yd' or *1.4= 52 ton all applicable ordinances, rules and laws. Rusty olson's Soil it Perc 810 Company License# 11/12/2018 nate Installer Summary 1500 gallon Septic tank (minimum) Tank options: none oux Larger rank warn muiripie camp/ranks 1000 gallon Dose tank (minimum) at 25.00 gpi 38 GPM @ 33 ft. of head, Pump required 7.4 linch swing on Demand float which translates to roughly 4.7 inches of float tether length if time dosing is required -->F 4.8 minutes ON time Ft ®hours OFF time 19 inches from bottom of tank to "pump ON" float, or 12 inches to "timer ON" float 22 inches from bottom of tank to "Hi Level Alarm" or 32 inches to "Hi level alarm" if time dosed 200 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 12.0 ft. long Rock bed 3 laterals 2.00 inch diameter 10.0 ft. long 3.0 ft. lateral spacing 1/4" inch perfs 3.0 ft. perforation spacing No Effluent filter Ft alarm 3 clean out 8t 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 12 ft. upslope berm 3:1 sideslope 1 13 Ift. sideslope berms 4:1 downslope 1 21 ft. downslope berm 4" inspection pipe 18" cover on top UDS100e berm 12 _1 � 1 _ nnurncinnc knrm 12" cover on sides (6" loamy cap & 6" topsoil) 1.7 11 dean sand lift 1.3 Depth to Limiting i_irntting i~ondition _ "_`4—__- — -u Absorption Width 27.0 Note: For 4 to 1% slopes, Absorption Width is measured from the Bedequally in both directions. For slopes >1`Yo, Ahsorption 1Hidthis measured downhill from the upslope edge of the Bed. Rock Bed: 4.0 yd3 or *1.4= 6 ton Mound Sand: 73 yd or *1.4= 102 ton Loamy Cap: 30 yd or *1.4= 42 ton Topsoil: 37 yd or *1.4= 52 ton 6 inches under pipe calculation based on 3:1/4.-1 slope from top of rockbet 6" deep 6" deep INSPECTOR CHECKLIST - mound 1860 west Farm Koad ® 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 Et bounds: out of road easement, or outer ditch. LAKE / BLUFF setback: 20' for bluff. Lakes: GD — RD NE Protected wetland Building setbacks: 10' for everything, 20' for dispersal area. WATERLINE under pressure sc 10' to bed, tank Et sewer line. (else sewer line > 12" below) ElSewer line Et baffle connection (no 90's, T 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 1500 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 1000 gallons 17 dose pump 38 gpm 33 head VERIFY PUMP CURVE 4.8 min ON 9 hr OFF El float setting drop 7.4 inches at 25,0 gpi "DESIGNED" 4.7 inches approx float tether length 184.0 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 12.0 Sand lift depth 20 inches. (Jar test : 2" sand leaves < 1/8" silt after 30 min) Absorption Sand beyond rock 0.0 upslope 17.0 downslope El Bermed topsoil beyond rockbed 12 upslope 13 sideslope 21 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 8 1/4" 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 � ]F;:z � � ƒ Q; k � f (A o � 2 . « 0 # QD � ƒ k� k � 9 k > � m % uj § O CL § �_ k a � E C % � 2 20 Ln 2 � ]F;:z � / ƒ Q; k 2 f � o m k « # _ ƒ � m % d 7 CL . E : � CL � $ � ]F;:z � � co & § 8 � / ƒ Q; k 2 f � o m k « # _ ƒ � m % d 7 % w : � � $ � � co & § 8 / ƒ Q; 2 f � o m k « : � § � $ / ƒ Q; � 2 f � m k : � § 2011 purple code Mound Design www.SeplicResaurce.cam (vers 15.2) Property Owner: Mark Beltrand Site Address: 1860 West Farm Road Date: 11/12/2018 PID: 2711823430018 Comments: �Om i' S i 2I f,-- instructions: = = enter data = adjust if desired = computer calculated - DO NOT CHANGE! 1) bedroom Type I ' I Residential System 600 GPD design flow Yes Garbage disposal or pumped to septic 2254 Gal Septic tank (code minimum) 50% larger tank with multiple comp/tanks 2250 Gal Septic tank (design size / LUG req'd) Tank options: none 1.2 GPD/ft7 mound sand loading rate contour loading rate of 12 req's a min 38 ft. long rockbed 1D.D ft rockbed width 5D.0 ft rockbed length 3.0 ft lateral spacing 3.0 ft perforation spacing (maximum of 3 for both) end feed manifold connection laterals 48,0 feet long 17.4 perfs / lateral 51 perfs total (1 /2 a pert means the first perf starts at the middle feed manifold) 1l4" inch perfs at feet residual head gives 0.74 gpm flow rate per perforation for this pert size Et spacing, Et pipe size on line 12, max perfs/lateral = 25 line #8 must be less > OK 10) 4.4 doses per day (4 minimum) 11) 150 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) 200 feet of 2.0 inch supply line leads to 34 gallons of drainback volume (Tip: "top feed" manifold to control the drainback) 14) 184 gallons TOTAL pump out volume (treatment + drainback) i5) 18 feet vertical lift from pump to mound laterals, leads to a: ]6) 3$ JGPM C 33 feet of head, Pump requirement (note: >50gpm may require an extra 3-6' of head) 17) 500 gal Dose tank (code minimum) 1000 gal Dose tank (design size / LUG req'd) at 25.00 gpi leads to a 18) 7.4 inch swing on Demand float, or timed dosing of4.8 min ON (confirm pump rate with drawdown (this delivers Average flow, =70% of Peak design flow)hrs OFF test and adjust as necessary) l9)12 inches from bottom of tank to "Pump OFF" float 20) 19 inches from bottom of tank to "Pump ON" float, or 12 inches to "'Timer ON" float if time dosed 21) 22 inches from bottom of tank to "Hi Level" float, or 32 inches to "Hi Level" float if time dosed 22) 450 gallons reserve capacity (after High Level Alarm is activated) Property Owner / project: Property Address / PID: Soil Observation Log www.SeDticResource.com vers 12. Owner Information Mark Beltrand 1860 West Farm Road Date 11/7/2018 Soil Survey Information ❑ refer to attached soil survey Parent matl's: ❑ Ti11 ❑ Outwash ❑ Lacustrine ❑ Alluvium ❑ Organic ❑ Bedrock landscape position: ❑ Summit ❑ Shoulder 0 Side slope ❑ Toe slope soil survey reap units: L22D2 slope 5 % direction- Lineal Soil Log #4 1 0 Boring ❑ Pit Elevation 1 JJV? Depth to SHWT 36 inches Depth (in) Texture fragment % matrix color redox color consistence grade shape loose loose single grain 0-20 Fill <35 friable weak granular blocky firth moderate Prismatic platy rigid strong massive 20-24 Topsoil <35 10yr3/2 Friable Moderate Blocky 24-28 Clay Loam <35 10yr4/3 Friable Strong Blocky 28-36 Clay Loam <35 10yr5/4 Friable Strong Blocky 36-46 Clay Loath <35 10yr5/4 10y4/8,1 -6/10y Firm Moderate Blocky Comments: Mottled 16 inches into the original soils