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2013 - 00685 - septic
CITY OF ORONO 111131111111111111111111101111111111111111111 * 2013 - 00685 * 2750 KELLEY PARKWAY DATE ISSUED: 07/19/2013 ORONO, MN 55356- (952) 249-4600 FAX: (952) 249-4616 ADDRESS : 2325 WILLOW HILL DR PIN : 03-117-23-23-0022 LEGAL DESC : WILLOW HILL : LOT 1 BLOCK 1 PERMIT TYPE : SEPTIC PROPERTY TYPE : RESIDENTIAL CONSTRUCTION TYPE : NEW rY. �, 0c4 4 1' IM NOTE: NEW MOUND SYSTEM (3)PRECAST TANKS-EACH 1250 GALLONS • APPLICANT SEPTIC NEW 200.00 BURNS EXCAVATING, INC. STATE SURCHARGE SEPTIC 5.00 3470 CO. RD 21 MAYER, MN 55360- MISC FEE 0.00 (612)685-4303 TOTAL 205.00 Minnesota State License#: 1888 PAID WITH CC# 6518 OWNER GUIDERA, WILLIAM&AIMEE 2325 WILLOW HILL DRIVE LONG LAKE, MN 55356- AGREEMENT AND SWORN STATEMENT Che work for which this permit is issued shall be performed according to the approved plans and specifications,applicable City approvals,and the State Building Code. This permit is for only the work described and does not grant permission for additional or related work which requires separate permits. All provisions of laws and ordinances governing this type of work shall be compied with whether or not specified herein.This permit will expire and become null and void if construction authorized is not commenced within 180 days of the date of issuance,or if construction is suspended for a period of 180 days at any time after work has commenced. The applicant is responsible for assuring all required inspections are requested in conformance with the State Building Code.This permit may be revoked t any time for due cause. _7iq/I5 n qt Applicant Permitee Signature Date ssut,j;y Signature Date SEPARATE PERMITS REQUIRED FOR WORK OTHER THAN DESCRIBED ABOVE. 07/19/2013 08:58 952-955-5071 BURNS EXCAVATING PAGE 02 Clty of Orono , 74;7 USE ONLY Po.O.Box 68 � 2750 Kelley Parkway Datef�eteivePermit#2DS, v�.7 Crystal Bay,MN 55323 (952)249-4600 Amount: $ .00 3 -U �� F , 1�krsHc)�� CITY OF ORONO—SEPTIC SYSTEM PERMIT APPLICATION (All permits must be approved by the On-Sete Septic Manager and/or Building Official) Site Address: Z 5 ZS L )J LL/,/.0 /j ZL 1\ 16 Owner: (rtJI 14 Mailing Address: mrS 1/(, V,1W &2 City: Zip: ,"55357 Home Phone: Alternate Phone: I�144.: n i n i nj 1 I r ! Mai., iy i '1� / �+14.�. .Afn �' Contractor/App.: &l, RAJ Oizei11/IT1i, Contact Person: "t/ s Address: 3,1176 ezAd l,-y ,14"J zL State License #: / 8&8 City: t4 L 1Z Zip: 5:53/J0 Expiration Date: Z/?6/4 Phone: /464 9 Alternate Phone: /'c/z) bits— 4/36,. e }II���r � ..� .' k.t�^�:�����r,�Stu'..'!�!i�I✓z f, � _� ..... (t.; r.�'dklY�11��'kJiy �S�Ny� ,�p� h;� ...yx�,l'xi�d„71a d,� ,�.,& �4 2. M,Gui(e,L?L.�..dr.\..l.G�,..:1i.�'.a...�yL• , � ,:,.a, f. S LFII Residential ❑ Commercial ❑ Other �'�+lµ:`;Ai” nr�:� i;, F,. j�tG ith� �.t; II � _;.� _ + ��,� ,fir W . �; ?a.; .w",r' ki4 '�:�r+[',., ;y4 �1:In jZI.11.,.1,d+!4�Li 17 i �A,.,1'�1+4'' ,k,ar,'1 L ,M*.0.. r s r Replacement System $200.00ZOO ' - Repair Existing System 100.00 (Tanks or Drainfield) State Surcharge 5.00 5.00 Total $ Z 6 S 41') W:1(Applications,License or Permit Applicatiens)\Permits\Septle Permr..Appllcation-Updated Surcharge 07-28-1I.doc 1 / 2 07/19/2013 08:58 952-955-5071 BURNS EXCAVATING PAGE 03 4 as.1417 �br ta- '4 V � "Y1,14.4':1".4-LA t Fa,r r i_G "Y1 rl.M1" `.t. a 1 y1c�` khw1` .f� a44 >1.^": G44rL :t4'. I �YL6.L'!7�'� :JiGla�'� '�`•+C .I,-i• •r� ;, �lA�i(M I will be installing the following; Ta ks Precast Concrete ❑ Fiberglass ❑ Plastic ❑ Other (list manufacturer) Number of Tanks: Size of Tanks: 12.Si) 1Z 5-0 -J Z Treatment System Trenches s.f. Mound : 5 X 53./s,f. Gravel less 5.f. Chamber s.f. NOTE: The contractor is required to provide an As-Built of the system before the final inspection, The undersigned hereby applies to the City of Orono for issuance of a septic system installation permit, agrees to do all the work in strict accordance with ordinances of the City and regulations of the State of Minnesota and certifies that all statements made on this application are complete, orrect. /1 4 Signature of Applic Date: 781/� MPCA License No.: 1E. Staff Review: ❑ Accept Q Denied Reviewer: ' Date: Reason for Denial: Comments (to be printed on inspection card): W1(Applicatlons,License or Permit ApplicatIons}IPermIts\Septic Permit Application-Updated Surcharge 07-28-11.doc 2 /2 1325 W 1wIli 1ITX 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 September 22,2011 Arthur J.Nelson Estate. Proposed Lot 1 Orono,Hennepin County This on-site Sewage Treatment System is partially designed for a Type 1,five-bedroom home in accordance with the Minnesota Pollution Control Agency Chapter 7080 and local ordinances. Once the house size and location are chosen this design can be completed. The periodically saturated soils were located at 20-28 inches below grade(mottled soil).Due to the periodically saturated soils,a pressurized mound system 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. The soils at a depth of 12"have a percolation rate averaging 6 MPI. The absorption areas do not overlap. Use 7/32 inch perforations must be used on the laterals. All tanks need to be insulated if there is less than two feet of cover over the top of the tanks.A filter needs to be installed on the second tank.Clean outs must be installed on the end of the laterals for maintenance. A 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 a light and sound device;this is in case of a pump failure. Keep all heavy equipment off of the proposed treatment areas before and after construction.The treatment area must be fenced off before construction begins.This Design is not valid&the System will need to be relocated if failure to protect the areas proposed for the On-Site Sewage Treatment systems occurs. Nothing other than gray water,(laundry,showers,ect.)human water&toilet tissue should be disposed of into the septic tanks.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, CITY OF ORONO SETIC PE/�L N EV� IINSPECTOROR Joseph J.Olson DATE If PERMIT NO. APPROVED AS SUBMITTED 0 APPROVED WITH CORRECTION'S AS NOTED NOT APPROVED-CORRECT&RESUBMIT These comments are for your information. All work shall be dory SIS SYSTEM IS DESIGNED FOR in full compliance with all applicable septic and zoning code. BEDROOMS. ANY INCREASE IN NUMBER DALES THIS DESIGN. Requirements including items not specifically noted in this review. BEDROOMS INYAU KELP THIS PLAN SET ON SITE AT ALL TIMES 950 / L'-') 9'° lu`, } 1.P. s Srs i ) ____7''''..... "-----..'''''''' 5'N \ '''\''' \ \ :1*\ 15 0 ''''''''''''\''''''''':\ , (:\,),\ .111.31:4 1 TL Z \ _) WC?LA Nf> 9 v �_ t ),,,, \ k IfioJs,,,_ ass ___________ �v' PROPERTY OF, nfo-I4 u R l' N ),v L:--S 77177_-:S Percolation Tests Scale t rt to*1 GSoli Borings :oPo7:-r:.n L Qi _ . — E v-1O0 v (ly ,.,},. ®Bench Mark .)I?(7NG9 N "/NL PI t,2 !in.)o r Y Notes This system is to be constructed to meet Date:� _; Ph.763•A9&8779 Chapter the pter Mnner 7080 & Local Ordinance Pollution Control Agency Rusty Ofeon's$01 end Percolation Testing . Designed by / ------ Note c Cheek all underground utilities �/ OSTP Design Summary Worksheet UNIVERSITY Minnesota Pollution OF MINNESOTA Control Agency _--- --,�N`•�- v 11.05.31 Property Owner/Client: Arthur J. Nelson Estate Site Address: Proposed lot 1, Orono, MN 55356 Site A 1. AVERAGE DESIGN FLOW: A. Design Flow: 750 Gallons Per Day(GPD) Note: The estimated design flow is considered a peak flow rate including a safety factor.For long term performance, the average daily flow is recommended to be< B. Septic Tank capacity: 2250 Gallons 60%of this value. C. Number of Septic Tanks or Compartments: 2 Effluent Screen Et Alarm? Yes Type of Soil Treatment and Dispersal Area* Type of Distribution* 0 Trenches 0 Bed Q Mound C At-Grade 0 Gravity Distribution ®Pressure Distribution-Level 0 Pressure Distribution-Unlevel 0 Dnp Distribution 0 None-Holding Tanks Only *Selection Required Benchmark Elev= 100 ft System Type Benchmark Location: Test hole# 1 Iii Type I Type II I-1,Type III I Type IV Type V Type of Distribution Media: Rock D. Pump Tank 1 Capacity: Gallons Pump Tank 2 Capacity: Gallons 2. SITE EVALUATION: A. Depth to Limiting Layer: 28 inches 2.3 ft Elevation of Limiting Layer: 97.7 ft B. Measured Percent Land Slope: 4.0 % 0.0 C. Soil Texture: Loam Percolation Rate: 6 Minutes per Inch D. Soil Hydraulic Loading Rate: 0.60 GPD/ft2 E. Contour Loading Rate 12.0 Gat/ft 3. DESIGN SUMMARY Trench Design Summary Absorption Area ft2 Sidewall Depth in Trench Width in Total Lineal Feet ft Number of Trenches Maximum Trench Depth in Designers Max Trench Depth in Bed Design Summary Absorption Area ft2 Media Below Pipe in Bed Length ft Bed Width ft Maximum Bed Depth in Designer's Max Bed Depth in Mound Design Summary Absorption Area 625 ft2 Bed Length 63 ft Bed Width 10.0 ft Absorption Width 20.0 ft Clean Sand Lift 1.0 ft Berm Width (slope 0-1%) ft Upslope Berm Width 10.4 ft Downslope Berm Width 16.2 ft Endslope Berm Width 10.2 ft Total System Length 83 ft Total System Width 37 ft At-Grade Design Summary Absorption Bed Width ft Absorption Bed Length ft System Height ft Absorption Bed Area ft2 Upslope Berm Width ft Downslope Berm Width ft f I_ .. . . .. I I. .. . ... ... I I.. OSTP Design Summary Worksheet UNIVERSITY Minnesota Pollution OF MINNESOTA Control Agency Pressure Distribution Summary No. of Perforated Laterals 3 Perforation Spacing 3 ft Perforation Diameter 7/32 in Lateral Diameter 2.00 in Supply Pipe Diameter 0 in Minimum Dose Volume 0 Flow Rate 36 GPM Total Head ft Maximum Dose Volume 187.5 Holding Tanks Only Number of Holding Tanks Total Volume of Holding Tanks gallons High Level Alarm? 4. ORGANIC LOADING(if pretreatment is being used) Organic Loading to Pre-Treatment Unit =Design Flow X Estimated BOO in mg/L in the effluent X 8.35: 1,000,000 gpd X mg/L X 8.35=1,000,000= lbs BOD/day Calculate System Organic Loading: lbs. B00/day :Bottom Area =lbs/day/ft2 lbs/day= ft2= lbs/day/ft2 Comments/Special Design Considerations: I hereby certify that I have completed this work in accordance with all applicable ordinances, rules and laws. Joseph J Olson / 810 09/22/11 (Designer) (Signature) (License#) (Date) OSTP Mound Design Minnesota Pollution UNIVERSITY Worksheet > 1% Slope OF MINNESOTA Control Agency 1. SYSTEM SIZING: v 11.05.31 A. Design Flow(Flow ft Soil- 1.A) : 750 GPD Table I MOUND CONTOUR LOADING RATES: B. Soil Loading Rate(Flow ft Soil-3.C): 0.60 GPD/ft2 measured Texture-derived Contour Porc Rate OR mound absorption ratio Loading C. Depth to Limiting Condition: 2.3 ft Rate: D. Percent Land Slope: 4.0 % ;60mpi 1.0, 1.3.2.0.2.-1,2.6 • :12 E. Design Media Loading Rate: 1.2 GPD/ft2 61-120 mpi OR 5.0 • :12 F. Mound Absorption Ratio(Table IXa): 2.00 120 nlpi' -5.0' :6' G. Design Contour Loading Rate: 12.0 GPD/ft 'Systems with these values are not Type I systems. (From Table I -same as Linear Loading Rate) Contour Loading Rate is a recommended value. 2. DISPERSAL MEDIA SIZING A. Calculate Required Dispersal Bed Area:Design Flow (1.A):Design Media Loading Rate (1.E)=ft2 If a larger dispersal media 750 GPD-:- 1.20 GPD/ft2 = 625 ft2 area is desired,enter size: 630 ft2 B. Calculate Dispersal Bed Width: Contour Loading Rate (1.G):Design Media Loading Rate (1.E)=Bed Width 12.0 ft _ 1.2 gpd/ft2 = 10 ft C. Calculate Dispersal Bed Length: Dispersal Bed Area (2.A)+Bed Width (2.B)=Bed Length 630 ft2 : 10 ft = 63 ft D. Select Dispersal Media: El Rock ❑Other Approved Media 3. ABSORPTION AREA SIZING Note:Mound setbacks are measured from the Absorption Area. A. Calculate Absorption Width:Bed Width (2.B)X Mound Absorption Ratio (1.F)=Absorption Width 10.0 ft x 2.0 = 20.0 ft B. For slopes>1%, the Absorption Width is measured downhill from the upslope edge of the Bed. Calculate Downslope Absorption Width:Absorption Width (3.A) -Bed Width (2.B)=ft 20.0 ft - 10.0 ft = 10.0 ft Comments: Slope, CLR Choice,Material issues 4. MOUND SIZING A. Calculate Clean Sand Lift: 3 feet minus Depth to Limiting Condition (1.C) = Clean Sand Lift (1 ft minimum) 3.0 ft - 2.3 ft = 1.0 ft Design Sand Lift (optional): B. Calculate Upslope Height: Clean Sand Lift (4.A) +media depth (1 ft.) +cover (1 ft.) = Upslope Height 1.0 ft + 1.0 ft + 1.0 ft= 3.0 ft D-14:Slope Multiplier Table Land Slope% 0 ! 2 3 4 5 6 7 8 9 IO 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 IlpsIope 3:1 3.00 2.91 2.83 2.75 2.68 2.61 2.54 2.44 2.42 2.36 2.31 2.26 2.21 2.17 2.13 2.09 2.05 2.03 2.00 1.97 1.95 1.93 1.91 1.89 1.87 1.85 Beim Ratio 4:1 4.00 3.85 3.70 3,57 3.45 3.33 3.23 3.12 3.0312.94 2.86 2.78 2.70 2.62 2.55 2.4 2.41 2.35 2.29 2.23 2.18 2.13 2.08 2.03 1.98 1.93 Land Slope% 0 1 2 3 4 5 6 7 8 1 9 10 11 12 13 14 4 15 16 17 1 18 19 20 21 22 23 24 25 Downslope 3:1 3.00 3,09 3.19 3.30 3.41 3.53 3.66 3.813 3.55 4.11 4.29 4.48 4.69 4.95 5.24.5.55 5.88 6.24 1 6.63 7.04 7.47 7.93 8.42 8.93 9.46 10.02 BeimRatio �4:1 4.00 4.17 4.35 4.54 4.76 5.00 5.26 5.56 5.88 6.25 6.67 7.14 7.6918.29 8.92 9.57 10.24 10.94111.67 12.42 13.19 13.99 14.82 15.67 16.54 17.44 Select Upslope Berm Multiplier C. (based on land slope): 3.45 (figure D-34) D. Calculate Upslope Berm Width: Multiplier (4.C)X Upslope Mound Height (4.5) = Upslope Berm Width 3.45 ft x 3.0 ft = 10.4 ft E. Calculate Drop in Elevation Under Bed: Bed Width (2.B) X Land Slope (1.D) : 100=Drop (ft) 10.0 ft x 4.0 % : 100= 0.40 ft F. Calculate Downslope Mound Height: Upslope Height (4.B) +Drop in Elevation (4.E) =Downslope Height 3.0 ft + 0.40 ft = 3.4 ft G Select Downslope Berm Multiplier (based on land slope): 4.76 (figure D-34) H. Calculate Downslope Berm Width:Multiplier (4.G)X Downslope Height (4.F)=Downslope Berm Width 4.76 x 3.4 ft = 16.2 ft I. Calculate Minimum Berm to Cover Absorption Area: Downslope Absorption Width (3.B or 3.C) +4 ft. =ft 10.0 ft + 4 ft = 14.0 ft J. Design Downslope Berm =greater of 4H and 41: 16.2 ft K. Select Endslope Berm Multiplier: 3.00 (usually 3.0 or 4.0) L. Calculate Endslope Berm (4.K)X Downslope Mound Height (4.F)=Endslope Berm Width 3.00 ft x 3.4 ft = 10.2 ft M. Calculate Mound Width: Upslope Berm Width(4.D) +Bed Width (2.B) +Downslope Berm Width (4.J)=ft 10.4 ft + 10.0 ft + 16.2 ft = 36.5 ft N. Calculate Mound Length: Endslope Berm Width (4.L) +Bed Length (2.C) +Endslope Berm Width (4.L) =ft 10.2 ft + 63.0 ft + 10.2 ft = 83.4 ft 0. If using a registered product, enter the Component Length: in. : 12 ft. P. If using a registered product, enter the Component Width: in. : 12 ft. Q. Number of Components per Row =Bed Length (2.C) divided by Component Length (4.0) (Round up) 63 = R. Number of Rows =Bed Width (2.B)divided by Component Width (4.P) (Round up) Adjust Contour Loading Rate on Design Summary page until this number is a whole number S. Total Number of Components =Number of Components per Row X Number of Rows X = 5. MOUND DIMENSIONS \in (----- ,. .... \ ,., __., ------- - Upslope (4.D) 10.4 sti M ' t i ,Endstope (4.Lt� Dispersal Bed: (2.B x 2.C) -: fEndslope (4.L) 1Q.2 10 X 63 �n 10;2 : 'V u c i o '75Downslope (4.J) 16.2 \ \ Total Mound Length (4.N) 83.4 / 4" inspection pipe 18" cover on top Upstope berm (4.D) , / Downslope berm (4.J) 16.2 10.4 M 12" cover on sides _ (6" topsoil) 1.0 Clean sand lift (4.A) 2.3 Depth to Limitinp, (1.C) Lirmtilig -oncfition Absorption Width (3.A) Note: 20.0 For 0 to 1% slopes, Absorption Width is measured from the Bedequally in both directions. For slopes >1%, Absorption Width is measured downhill from the upstope edge of the Bed. OSTP Mound Materials Worksheet UNIVERSITY Minnesota Pollution OF MINNESOTA ,, ‘- --,..,,Nom; Control Agency A.Calculate Bed(rock)Volume:Bed Length (2.C)X Bed Width (2.B)X Depth =Volume (ft3) v 11.05.31 63.0 ft x 10.0 ft X 1.0 = 630.0 ft3 Divide ft3 by 27 ft3/yd3 to calculate cubic yards: 630.0 ft3 = 27 = 23.3 yd3 Add 20%for constructability: 23.3 yd3 X 1.2 = 28.0 yd3 B. Calculate Clean Sand Volume: Volume Under Rock bed:Average Sand Depth x Media Width x Media Length =cubic feet 1.2 0.0 1.2 ft X 10.0 ft X 63.0 ft = 756.0 ft3 For a Mound on a slope from 0-1% Volume from Length=((Upslope Mound Height-1)X Absorption Width Beyond Bed X Media Bed Length) ft -1) X X ft = Volume from Width=((Upslope Mound Height-1)X Absorption Width Beyond Bed X Media Bed Width) ft -1) X X ft = Total Clean Sand Volume:Volume from Length+Volume from Width+Volume Under Media ft3 + ft3 + ft3 = ft3 For a Mound on a slope greater than 1% Upslope Volume:((Upslope Mound Height -1)x 3 x Bed Length)+2=cubic feet (( 3.0 ft -1) X 3.Oft X 63.0 )+2= 189.0 ft3 Downslope Volume:((Downslope Height-1) x Downslope Absorption Width x Media Length)+2=cubic feet (( 3.4 ft-1) X 10.0 ft x 63.0 )+2= 756.0 ft3 Endslope Volume:(Downslope Mound Height- 1)x 3 x Media Width =cubic feet ( 3.4 ft-1 ) X 3.0 ft X 10.0 ft = 72.0 ft3 Total Clean Sand Volume:Upslope Volume +Downslope Volume +Endslope Volume +Volume Under Media 189.0 ft3 + 756.0 ft3 + 72.0 ft3 + 756.0 ft3= 1773.0 ft3 Divide ft3 by 27 ft3/yd3 to calculate cubic yards: 1773.0 ft3 : 27 = 65.7 yd3 Add 20%for constructability: 65.7 yd3 X 1.2 = 78.8 yd3 C. Calculate Sandy Berm Volume: 3.2 0.0 Total Berm Volume(approx):((Avg.Mound Height-.5 ft topsoil)x Mound Width x Mound Length)+2=cu.ft. ( 3.2 - 0.5 )ft x 36.5 ft X 83.4 )+2= 4113.4 ft3 Total Mound Volume-Clean Sand volume-Rock Volume=cubic feet 4113.4 ft3 - 1773.0 ft3 - 630.0 ft3 = 1710.4 ft3 Divide ft3 by 27 ft3/yd3 to calculate cubic yards: 1710.4 ft3 27 = 63.3 yd3 Add 20%for constructability: 63.3 yd3 x 1.2 = 76.0 yd3 D.Calculate Topsoil Material Volume:Total Mound Width X Total Mound Length X.5 ft 36.5 ft X 83.4 ft X 0.5 ft = 1523.5 ft3 Divide ft3 by 27 ft3/yd3 to calculate cubic yards: 1523.5 ft3 = 27 = 56.4 yd3 Add 20%for constructability: 56.4 yd3 x 1.2 = 67.7 yd3 OSTP Pressure Distribution UNIVERSITY Minnesota Pollution Design WorksheetOF MINNESOTA Control Agency 1. Select Number of Perforated Laterals in system/zone: 3 �qy �cy�cy�p��q Gyeotexti�te < ref" .b;ions Spacedt49l!.;•b`c Minimum►;. '.:''1:; c /. perforations spaced 3�apart �T,; 2'of rock--': ,'T,' (2 feet is minimum and 3 feet is maximum spacing) �.._ �... .. ti,. ,. s,. �� ; 2. Select Perforation Spacing: ', ►, , � u ► a. ,, 1., ► r 9 of rock i'.i. i l. ►. 3. Select Perforation Diameter Size7/32 inch '' - ' Perforation sizing:'!t"to 4." Perforation spacing:2'to 3' 4. Length of Laterals =Media Bed Length-2 Feet. Perforation can not be closer then 1 foot from edge. v 11.05.31 63 - 2ft = 61 ft 5. Determine the Number of Perforation Spaces. Divide the Length of Laterals (Line 4)by the Perforation Spacing (Line 2)and round down to the nearest whole number. Number of Perforation Spaces = 61 ft ÷ 3 ft = 20 Spaces 6. Number of Perforations per Lateral is equal to 1.0 plus the Number of Perforation Spaces (Line 5). Perforations Per Lateral = 20 Spaces + 1 = 21 Perfs. Per Lateral Check table below to verify the number of perforations per lateral guarantees less than a 10%discharge variation. The value is double if the a center manifold is used. Maximum Number of Perforations Per Lateral to Guarantee<10%Discharge Variation ',Inch Perforations 7/32 Inch Perforations Perforation Spacing(Feet) Pipe Diameter(Inches) Perforation Spacing Pipe Diameter(Inches) 1 114 15 2 3 (Feet) 1 114 11/2 2 3 2 10 13 18 30 60 2 11 16 21 34 68 21/2 8 12 16 28 54 214 10 14 20 32 64 3 8 12 16 25 52 3 9 14 19 30 60 3/16 Inch Perforations 1/8 Inch Perforations Perforation Spacing(Feet) I Pipe Diameter(Inches) Perforation Spacing Pipe Diameter(Inches) 1 11/4 11/2 2 3 (Feet{ 1 1% 11/2 2 3 2 12 18 26 46 87 2 21 33 44 74 149 21/2 12 17 24 40 80 21/2 20 30 41 69 135 3 12 16 22 37 75 3 20 29 38 64 128 7. Total Number of Perforations equals the Number of Perforations per Lateral (Line 6)multiplied by the Number of Perforated Laterals (Line 1). 21 Pert Per Lateral X 3 Number of Perf. Laterals = 63 Total Number of Perf. 8. Calculate the Square Feet per Perforation. Recommended value is 4-10 ft 2 per perforation. Perforation Discharge(DPW Does not apply to At-Grades Perforation Diameter Head tri) '7, '/',. 'i" nt Bed Area = Bed Width(ft)X Bed Length(ft) ,.� D.,9 0.., 0.56 0.74 1.5 0.22 0.51 0.69 0.9 10 ft X 63 ft = 630 ft2 2.0° 0.26 0.59 0.80 1.04 2.5 0.29 0.65 0.89 1.17 3.0 0.32 0.72 0.98 1.28 Square Foot per Perforation =Bed Area divided by the Total Number of Perforations (Line 7). 4.0 0.37 0.83 1.13 1.47 5.0' 0.41 0.93 1.26 1.65 2 2 f foot Dwellings with 3116 inch to 114 inch 630ft - 63 perforations = 10.0 ft /perforations perforations Dwelling with 1/8 inch perforations 2 feet Other establishments and MSTS with 3/16 9. Select Minimum Average Head: 1.0 ft inch to 1/4 inch perforation 5 feet Other establishments and MSTS with 1/8 inch perforations 10. Select Perforation Discharge (GPM)based on Table III: 0.56 GPM per Perforation 11. Determine required Flow Rate by multiplying the Total Number of Perforations (Line 7)by the Perforation Discharge (Line 10). 63 Perforations X 0.56 GPM per Perforation = 36 GPM OSTP Pressure Distribution UNIVERSITY Minnesota Pollution Control Agency Design Worksheet OF MINNESOTA '="'-- ,,,-' 12. Select Type of Manifold Connection (End or Center): 1 End [1 Center 13. Select Lateral Diameter: 2.00 in Table II Volume of Liquid in 14. Volume of Liquid Per Foot of Distribution Piping: 0.170 Gallons/ft Pipe 15. Volume of Distribution Piping = Pipe Liquid Diameter Per Foot = [Number of Perforated Laterals (Line 1)X Length of Laterals (Line 4)X (inches) (Gallons) (Volume of Liquid Per Foot of Distribution Piping(Line 14)] 1 0.045 3 X 61 ft X 0.170 gal/ft = 31.1 Gallons 1.25 0.078 1.5 0.110 16. Minimum Dose=Volume of Distribution Piping(Line 15)X 4 2 0.170 3 0.380 31.1 gals X 4 = 124.4 Gallons 4 0.661 _- Cleanouts --" - -- __ manifold pipe` I Manifold pipes 1 �` i wir�% J pipe from pump =lean outs a `� �.� Alternate location t of pipe from pump � 0 alternate location Pipe from pump of pipe from pump Minnesota Pollution OSTP Design Summary Worksheet UNIVERSITY Control Agency OF MINNESOTA , �N,:N. v 11.05.31 Property Owner/Client: Arthur J. Nelson Estate Site Address: Proposed lot 1, Orono, MN 55356 Site B 1. AVERAGE DESIGN FLOW: A. Design Flow: 750 Gallons Per Day(GPD) Note: The estimated design flow is considered a peak flow rate including a safety factor.For long term performance,the average daily flow is recommended to be< B. Septic Tank capacity: 2250 Gallons 60%of this value. C. Number of Septic Tanks or Compartments: 2 Effluent Screen&Alarm? Yes Type of Soil Treatment and Dispersal Area* Type of Distribution* O Trenches O Bed C Mound 0 At-Grade O Gravity Distribution ®Pressure Distribution-Level 0 Pressure Distribution-Unlevel O Drip Distribution 0 None-Holding Tanks Only *Selection Required Benchmark Elev= 100 ft System Type Benchmark Location: Test hole# 1 :0'Type I ill Type II 7 Type III ri Type IV E Type V Type of Distribution Media: Rock D. Pump Tank 1 Capacity: Gallons Pump Tank 2 Capacity: Gallons 2. SITE EVALUATION: A. Depth to Limiting Layer: 22 inches 1.8 ft Elevation of Limiting Layer: 96.7 ft B. Measured Percent Land Slope: 4.0 % 0.0 C. Soil Texture: Loam Percolation Rate: 6 Minutes per Inch D. Soil Hydraulic Loading Rate: 0.60 GPD/ft2 E.Contour Loading Rate 12.0 Gat/ft 3. DESIGN SUMMARY Trench Design Summary Absorption Area ft2 Sidewall Depth in Trench Width in Total Lineal Feet ft Number of Trenches Maximum Trench Depth in Designer's Max Trench Depth in Bed Design Summary Absorption Area ft2 Media Below Pipe in Bed Length ft Bed Width ft Maximum Bed Depth in Designer's Max Bed Depth in Mound Design Summary Absorption Area 625 ft2 Bed Length 63 ft Bed Width 10.0 ft Absorption Width 20.0 ft Clean Sand Lift 1.2 ft Berm Width (slope 0-1%) ft Upslope Berm Width 10.2 ft Downslope Berm Width 17.0 ft Endslope Berm Width 10.7 ft Total System Length 84 ft Total System Width 37 ft At-Grade Design Summary Absorption Bed Width ft Absorption Bed Length ft System Height ft Absorption Bed Area ft2 Upslope Berm Width ft Downslope Berm Width ft Endslope Berm Width ft System Length ft System Width ft OSTP Design Summary Worksheet UNIVERSITY Minnesota Pollution OF MINNESOTA Control Agency �, -- Pressure Distribution Summary No.of Perforated Laterals 3 Perforation Spacing 3 ft Perforation Diameter 7/32 in Lateral Diameter 2.00 in Supply Pipe Diameter 0 in Minimum Dose Volume 0 Flow Rate 36 GPM Total Head ft Maximum Dose Volume 187.5 Holding Tanks Only Number of Holding Tanks Total Volume of Holding Tanks gallons High Level Alarm? 4. ORGANIC LOADING(if pretreatment is being used) Organic Loading to Pre-Treatment Unit =Design Flow X Estimated BOD in mg/L in the effluent X 8.35=1,000,000 gpd X mg/L X 8.35 a 1,000,000= lbs BOD/day Calculate System Organic Loading: lbs. BOD/day :Bottom Area =lbs/day/ft2 lbs/day_ ft2= lbs/day/ft2 Comments/Special Design Considerations: I hereby certify that I have completed this work in accordance with all applicable ordinances, rules and laws. Joseph J Olson 810 09/22/11 (Designer) (Signature) (License#) (Date) OSTP Mound Design UNIVERSITY Minnesota Pollution Worksheet >1 % SlopeOF MINNESOTA Control Agency 1. SYSTEM SIZING: v 11.05.31 A. Design Flow(Flow&Soil- 1.A) : 750 GPD Table I MOUND CONTOUR LOADING RATES: B. Soil Loading Rate(Flow&Soil-3.C): 0.60 GPD/ft2Contour measured Texture-derived Parc Rate OR mound absorption ratio Loading C. Depth to Limiting Condition: 1.8 ft Rate: D. Percent Land Slope: 4.0 % s 60mpi 1.0. 1.3.2.0, 2.4.2.6 • 112 E. Design Media Loading Rate: 1.2 GPD/ft2 61.120 mpi OR 5.0 • :12 F. Mound Absorption Ratio(Table IXa): 2.00 , 120 mpi• -5.0• c6 G. Design Contour Loading Rate: 12.0 GPD/ft 'Systems with these values are not Type I systems. (From Table I -same as Linear Loading Rate) Contour Loading Rate is a recommended value. 2. DISPERSAL MEDIA SIZING A. Calculate Required Dispersal Bed Area:Design Flow (1.A):Design Media Loading Rate (1.E)=ft2 If a larger dispersal media 750 GPD: 1.20 GPDIft2 = 625 ft2 area is desired,enter size: 630 ft2 B. Calculate Dispersal Bed Width: Contour Loading Rate (1.G) :Design Media Loading Rate (1.E)=Bed Width 12.0 ft 1.2 gpd/ft2 = 10 ft C. Calculate Dispersal Bed Length: Dispersal Bed Area (2.A):Bed Width (2.B)=Bed Length 630 ft2 : 10 ft = 63 ft D. Select Dispersal Media: i1 Rock ❑Other Approved Media 3. ABSORPTION AREA SIZING Note:Mound setbacks are measured from the Absorption Area. A. Calculate Absorption Width:Bed Width (2.B)X Mound Absorption Ratio (1.F)=Absorption Width 10.0 ft x 2.0 = 20.0 ft B. For slopes>1%, the Absorption Width is measured downhill from the upslope edge of the Bed. Calculate Downslope Absorption Width:Absorption Width (3.A) -Bed Width (2.B)=ft 20.0 ft - 10.0 ft = 10.0 ft Comments: Slope, CLR Choice,Material issues 4. MOUND SIZING A. Calculate Clean Sand Lift: 3 feet minus Depth to Limiting Condition (1.C) =Clean Sand Lift (1 ft minimum) 3.0 ft - 1.8 ft = 1.2 ft Design Sand Lift (optional): B. Calculate Upslope Height: Clean Sand Lift (4.A) +media depth (1 ft.) +cover (1 ft.) = Upslope Height 1.2 ft + 1.0 ft + 1.0 ft= 3.2 ft 0-34:Slope Mui'iplier Table Land Slope.b 0 I 2 3 14 5 6 7 j 8 19 10 11 12 13 14 I_ 15 16 17 18 19 20 21 22 23 24 25 UpSIOpe 3:1 3.00 2.91 2.83 2.75 2.68 2.61 2.54 2.48 2.42 7.36 2.31 2.26 2.21 2 17 2.13 2.09 2.06 2.03 2.00 1.97 1.95 1.93 1.91 1.89 1.87 1.85 Beim Ratio 4:I,4.00 3.85 3.70 3.5713.45 3.33,3.23 3.1213.03 2.94 2.86 2.78 2.70 2.62 2.55,2.48 2.41 2.35 2.29 2.23 2.18 2.13 2.08 2.03 1.98 1.93 Land Slope 0 1 2 3 4 5 6 7 I 8 9 10 11 12 13 14 115 16 17 f 18 19 20 21 22 23 24 25 Do ins ope 3:1 3.03) 3.09 3.19 3.30 3.41 3.53 3.66 3.8013.95 4.11 4.29 4.43 4.69 4.95 5.24 5.55 5.88 6.24 6.63 7,04 7.47 7.93 8.42 8.93 9.46 10.02 Bern)Ratio 4:1 4.00 4.17 4.35 4.54 4.76 5.00 5.26 5.5615.88 6.25 6.67 7.14 7.69 8.29 8.92 9.57 10.24 10.94 11.67 12.42 13,19 13.99 14.82 15.67 16.54 17.44 C Select Upslope Berm Multiplier (based on land slope): 3.23 (figure D-34) D. Calculate Upslope Berm Width: Multiplier (4.C)X Upslope Mound Height (4.6) = Upslope Berm Width 3.23 ft x 3.2 ft = 10.2 ft E. Calculate Drop in Elevation Under Bed: Bed Width (2.B) X Land Slope (1.D): 100=Drop (ft) 10.0 ft x 4.0 % : 100= 0.40 ft F. Calculate Downslope Mound Height: Upslope Height (4.B) +Drop in Elevation (4.E) =Downslope Height 3.2 ft + 0.40 ft = 3.6 ft G Select Downslope Berm Multiplier (based on land slope): 4.76 (figure D-34) H. Calculate Downslope Berm Width:Multiplier (4.G)X Downslope Height (4.F) =Downslope Berm Width 4.76 x 3.6 ft = 17.0 ft I. Calculate Minimum Berm to Cover Absorption Area: Downslope Absorption Width (3.B or 3.C) +4 ft. =ft 10.0 ft + 4 ft = 14.0 ft J. Design Downslope Berm =greater of 4H and 41: 17.0 ft K. Select Endsiope Berm Multiplier: 3.00 (usually 3.0 or 4.0) L. Calculate Endsiope Berm (4.K)X Downslope Mound Height (4.F) =Endslope Berm Width 3.00 ft x 3.6 ft = 10.7 ft M. Calculate Mound Width: Upslope Berm Width(4.D) +Bed Width (2.B) +Downslope Berm Width (4.J)=ft 10.2 ft + 10.0 ft + 17.0 ft = 37.2 ft N. Calculate Mound Length: Endslope Berm Width (4.L) +Bed Length (2.C) +Endslope Berm Width (4.L) =ft 10.7 ft + 63.0 ft + 10.7 ft = 84.4 ft 0. If using a registered product, enter the Component Length: in. : 12 ft. P. If using a registered product, enter the Component Width: in. : 12 ft. Q. Number of Components per Row =Bed Length (2.C) divided by Component Length (4.0) (Round up) 63 = R. Number of Rows =Bed Width (2.B)divided by Component Width (4.P) (Round up) Adjust Contour Loading Rate on Design Summary page until this number is a whole number S. Total Number of Components =Number of Components per Row X Number of Rows X = 5. MOUND DIMENSIONS \ \ rsi r ....__ „, __,, ------- Upslope (4.D) 10.2 M , , l \ `Ends�ope (4.L� Dispersal Bed: (2.B x 2.C) o �Endslope (4.L), 1Q.7 10 x 63 to 10 ;7 -46 c ro \ ) V Ci O O ' Downslope (4.J) 17.0 o \ \ Total Mound Length (4.N) 84.4 1 / 4” inspection pipe 18" cover on top Upslope berm (4.D) / Downslope berm (4.J) 17.0 —f 10.2 12" cover on sides =; (6" opsoil) 1.2Clean sand lift (4.A) 'Depth -- ------ 1.8 I Depth to Liinitine, (1.C) Limiting ;_Cf,litltlC)!l -- —---- ------ Absorption Width (3.A) ia Note: 20.0 For 0 to 1% slopes, Absorption Width is measured from the Bedequatly in both directions. For slopes >1%, Absorption Width is measured downhill from the upstope edge of the Bed. OSTP Mound Materials Worksheet UNIVERSITY Minnesota Pollution OF MINNESOTA �, Control Agency A.Calculate Bed (rock)Volume:Bed Length (2.C)X Bed Width (2.B)X Depth =Volume (ft3) v 11.05.31 63.0 ft X 10.0 ft X 1.0 = 630.0 ft3 Divide ft3 by 27 ft3/yd3 to calculate cubic yards: 630.0 ft3 t 27 = 23.3 yd3 Add 20%for constructability: 23.3 yd3 X 1.2 = 28.0 yd3 B. Calculate Clean Sand Volume: Volume Under Rock bed:Average Sand Depth x Media Width x Media Length =cubic feet 1.4 0.0 1.4 ft X 10.0 ft X 63.0 ft = 861.0 ft3 For a Mound on a slope from 0-1% Volume from Length=((Upslope Mound Height-1)X Absorption Width Beyond Bed X Media Bed Length) ft -1) X X ft = Volume from Width=((Upslope Mound Height-1)X Absorption Width Beyond Bed X Media Bed Width) Ift -1) X X ft = Total Clean Sand Volume:Volume from Length+Volume from Width+Volume Under Media ft3 + ft3 + ft3 = ft3 For a Mound on a slope greater than 1% Upslope Volume:((Upslope Mound Height -1)x 3 x Bed Length)+2=cubic feet (( 3.2 ft -1) X 3.Oft X 63.0 )+2= 204.8 ft3 Downslope Volume:((Downslope Height-1)x Downslope Absorption Width x Media Length)+2=cubic feet (( 3.6 ft-1) X 10.0 ft X 63.0 )4-2= 808.5 ft3 Endslope Volume:(Downslope Mound Height-1) x 3 x Media Width =cubic feet ( 3.6 ft-1 ) X 3.0 ft X 10.0 ft = 77.0 ft3 Total Clean Sand Volume:Upslope Volume +Downslope Volume+Endslope Volume +Volume Under Media 204.8 ft3 + 808.5 ft3 + 77.0 ft3 + 861.0 ft3= 1951.3 ft3 Divide ft3 by 27 ft3/yd3 to calculate cubic yards: 1951.3 ft3 a 27 = 72.3 yd3 Add 20%for constructability: 72.3 yd3 X 1.2 = 86.7 yd3 C. Calculate Sandy Berm Volume: 3.4 0.0 Total Berm Volume(approx):((Avg.Mound Height-.5 ft topsoil)x Mound Width x Mound Length)+2=cu.ft. ( 3.4 - 0.5 )ft X 37.2 ft X 84.4 )*2= 4500.9 ft3 Total Mound Volume-Clean Sand volume-Rock Volume=cubic feet 4500.9 ft3 - 1951.3 ft3 - 630.0 ft3 = 1919.6 ft3 Divide ft3 by 27 ft3/yd3 to calculate cubic yards: 1919.6 ft3 = 27 = 71.1 yd3 Add 20%for constructability: 71.1 yd3 x 1.2 = 85.3 yd3 D. Calculate Topsoil Material Volume:Total Mound Width X Total Mound Length X.5 ft 37.2 ft X 84.4 ft X 0.5 ft = 1570.1 ft3 Divide ft3 by 27 ft3/yd3 to calculate cubic yards: 1570.1 ft3 s 27 = 58.2 yd3 Add 20%for constructability: 58.2 yd3 x 1.2 = 69.8 yd3 OSTP Pressure Distribution UNIVERSITY Minnesota Pollution Design Worksheet OF MINNESOTA , t_,. Control Agency ,, I I 1. Select Number of Perforated Laterals in system/zone: 3 �q4Gveot 'k / 0M aj"•, Minimum i4.,,t g (2 feet is minimum and 3 feet is maximum spacing) (SI /t_perforations spaced 3 apart 4,2 of rock ,t::. 2. Select Perforation Spacing: 3.0 ft ',ti't•f, , , , , + .'° 12 3. Select Perforation Diameter Size 732 inch Perforation sizing:'4"to V." Perforation spacing:2'to 3' 4. Length of Laterals =Media Bed Length-2 Feet. Perforation can not be closer then 1 foot from edge. v 11.05.31 63 - 2ft = 61 ft 5. Determine the Number of Perforation Spaces. Divide the Length of Laterals (Line 4)by the Perforation Spacing (Line 2)and round down to the nearest whole number. Number of Perforation Spaces = 61 ft ÷ 3 ft = 20 Spaces 6. Number of Perforations per Lateral is equal to 1.0 plus the Number of Perforation Spaces (Line 5). Perforations Per Lateral = 20 Spaces + 1 = 21 Perfs. Per Lateral Check table below to verify the number of perforations per lateral guarantees less than a 10%discharge variation. The value is double if the a center manifold is used. Maximum Number of Perforations Per Lateral to Guarantee<10%Discharge Variation .Inch Perforations 7132 Inch Perforations IApe Diameter(Inches) Perforation Spacing Pipe Diameter(Inches) Perforation Spacing(Feet) 1 114 112 2 3 (Feet) 1 114 1st 2 3 2 10 13 18 30 60 2 18 16 21 34 68 212 8 12 16 28 54 212 10 14 20 32 64 3 8 12 16 25 52 3 9 14 19 30 60 3/16 Inch Perforations 1/8 Inch Perforations I Pipe Diameter(Inches) Perforation Spacing Pipe Diameter(Inches) Perforation Spacing(Feet) 1 114 11 2 3 (Feet) 1 1 t6 11,2 2 3 2 12 18 26 46 87 2 21 33 44 74 149 212 12 17 24 40 80 212 20 30 41 69 135 3 12 16 22 37 75 3 20 29 38 64 128 7. Total Number of Perforations equals the Number of Perforations per Lateral (Line 6)multiplied by the Number of Perforated Laterals (Line 1). 21 Perf. Per Lateral X 3 Number of Perf. Laterals = 63 Total Number of Perf. 8. Calculate the Square Feet per Perforation. Recommended value is 4-10 ft 2 per perforation. Perforation Discharge top") Does not apply to At-Grades p"`°ra"°n Diameter Head Pt) 1/r ,/i. '61 ,i • Bed Area = Bed Width(ft)X Bed Length(ft) ,,o- 0.18 0.41 0.56 0.74 1.5 0.22 0.51 0.69 0.9 10 ft x 63 ft = 630 ft2 2.0° 0.26 0.59 0.80 1.04 2.5 0.29 0.65 0.89 1.17 3.0 0.32 0.72 0.98 1.28 Square Foot per Perforation =Bed Area divided by the Total Number of Perforations (Line 7). 4.0 0.37 0.83 1.13 1.47 5.0` 0.41 0.93 1.26 1.65 Dwellings with 3/16 inch to 1/4 inch 630 ft263 perforations = 10.0 ft2/perforations '`Dot perforations Dwellings with 1/a inch perforations 2 feet Other establishments and LASTS with 3/16 9. Select Minimum Average Head: 1.0 ft inch to 1/4 inch perforations 5 feet Other establishments and MSTS with 1/8 inch perforations 10. Select Perforation Discharge (GPM)based on Table III: 0.56 GPM per Perforation 11. Determine required Flow Rate by multiplying the Total Number of Perforations (Line 7)by the Perforation Discharge (Line 10). 63 Perforations X 0.56 GPM per Perforation = 36 GPM OSTP Pressure Distribution . UNIVERSITY 4 x�e y� Minnesota Pollution Design Worksheet OF MINNESOTA Control Agency 12. Select Type of Manifold Connection (End or Center): [] End ❑ Center 13. Select Lateral Diameter: 2.00 in Table II Volume of Liquid in 14. Volume of Liquid Per Foot of Distribution Piping: 0.170 Gallons/ft Pipe Pipe Liquid 15. Volume of Distribution Piping = Diameter Per Foot =[Number of Perforated Laterals (Line 1)X Length of Laterals (Line 4)X (inches) (Gallons) (Volume of Liquid Per Foot of Distribution Piping(Line 14)] 1 0.045 3 X 61 ft X 0.170 gal/ft = 31.1 Gallons 1.25 0.078 1.5 0.110 16. Minimum Dose=Volume of Distribution Piping(Line 15)X 4 2 0.170 3 0.380 31.1 gals X 4 = 124.4 Gallons 4 0.661 _- Cleanouts --- - manifold pipe` pp1 Manifold ie i/ `� pipe from pump J Vdean outs `�. Alternate location 4 of pipe from pump 4 •• alternate location /� Pipe from pump of pipe from pump Logs of Soil Borings License#810 Location or Project: Arthur J Nelson Proposed Lot 1 Borings made by: Rusty Olson's Soil and Perc testing 9/18/2011 Classification System: AASHO ; USDS•USDS-SCS X ; Unified ; Other Auger used (check two): Hand_X_, or Power , Flight, Bucket or Probe_X_ Boring Number_1_Surface elevation 100.0 Mottled Soil at_2.3_feet 0"-6" Dark brown loam 10yr3/2 H2O present at_X_ 6"-14" Brown loam 10yr4/4 14"-28" Brown loam 10yr5/4 28"-32" Rusty brown loam 10yr5/4 Boring Number_2_Surface elevation_100.0_ Mottled Soil at_2.3_feet 0"-6" Dark brown loam 10yr3/2 H2O present at_X_ 6"-14" Brown loam 10yr4/4 14"-28" Brown loam 10yr5/4 28""-32" Rusty brown loam 10yr5/4 Boring Number_3_Surface Elevation_98.5 Mottled Soil at 1.8 feet 0"-10" Dark brown loam 10yr3/2 H2O present at_X 10"-18" Brown loam 10yr4/4 18"-22" Brown loam 10yr5/4 22""-30" Rusty brown loam 10yr5/4 Boring Number 4_ Surface elevation_98.5_ Mottled Soil at_2.1_feet 0"-10" Dark brown loam 10yr3/2 H2O present at_X_ 10"-20" Brown loam 10yr4/4 20"-26" Brown loam 10yr5/4 26"-30" Rusty brown loam 10yr5/4 Boring Number 5_Surface elevation_100.0_ Mottled Soil at_2.3_feet 0"-6" Dark brown loam 10yr3/2 H2O present at_X_ 6"-14" Brown loam 10yr4/4 14"-28" Brown loam 10yr5/4 28"-32" Rusty brown loam 10yr5/4 Boring Number 6_Surface elevation_97.3_ Mottled Soil at_1.7_feet 0"-10" Dark brown loam 10yr3/2 H2O present at_X_ 10"-16" Brown loam 10yr4/4 16"-20" Brown loam 10yr5/4 20"-30" Rusty brown loam 10yr5/4 Percolation Test Data Sheet Lic.#810 Percolating test readings made by: Rusty Olson's Perc. starting at 9:20 A.M. On 9/19/11 Location: Arthur J. Nelson Estate: Proposed lot 1 Hole number: 1 Date hole was prepared 9/18/11 Depth of hole bottom_12"_inches, Diameter of hole_6"_inches. Soil data from test hole: Depth, inches Soil texture 0-6" Dark brown loam 10yr3/2 6"-12" Brown loam 10yr4/4 Method of scratching side wall: Knife Depth of gravel in bottom of hole 2 inches: Date of initial water filling 9/19/11 depth of initial water filling 12 inches above 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 Time Time Depth Drop in H2O Perc Rate I 9:30 10:00 6" 5.5 5.4 10:07 10:37 6" 5.5 5.4 10:38 11:08 6" 5.5 5.4 I AVERAGE PERC. RATE 5.4 MPI I • Percolation Test Data Sheet Lic.#810 Percolating test readings made by: Rusty Olson's Perc. starting at 9:20 A.M. On 9/19/11 Location: Arthur J. Nelson Estate: Proposed lot 1 Hole number: 2 Date hole was prepared 9/18/11 Depth of hole bottom_12'_inches, Diameter of hole_6"_inches. Soil data from test hole: Depth, inches Soil texture 0-10" Dark brown loam 10yr3/2 10"-12" Brown loam 10yr4/4 Method of scratching side wall: Knife Depth of gravel in bottom of hole 2 inches: Date of initial water filling 9/19/11 depth of initial water filling 12 inches above 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 I Time Time Depth Drop in H2O Perc Rate 9:31 10:01 6" 4.5 6.7 10:06 10:36 6" 4.3 6.9 10:39 11:09 6" 4.2 7.1 AVERAGE PERC. RATE 6.9 MPI Percolation Test Data Sheet Lic.#810 Percolating test readings made by: Rusty Olson's Perc. starting at 9:20 A.M. On 9/19/11 Location: Arthur J. Nelson Estate: Proposed lot 1 Hole number: 3 Date hole was prepared 9/18/11 Depth of hole bottom_12"_inches, Diameter of hole 6" inches. Soil data from test hole: Depth, inches Soil texture 0-10" Dark brown loam 10yr3/2 10"-12" Brown loam 10yr4/4 Method of scratching side wall: Knife Depth of gravel in bottom of hole 2 inches: Date of initial water filling 9/19/11 depth of initial water filling 12 inches above 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 I Time Time Depth Drop in H2O Perc Rate I 9:32 10:02 6" 5.0 6.0 10:05 10:35 6" 4.7 6.4 10:40 11:10 6" 4.6 6.5 I AVERAGE PERC. RATE 6.3 MPI I Percolation Test Data Sheet Lic.#810 Percolating test readings made by: Rusty Olson's Perc. starting at 9:20 A.M. On 9/19/11 Location: Arthur J. Nelson Estate: Proposed lot 1 Hole number: 4 Date hole was prepared 9/18/11 Depth of hole bottom 12"_inches, Diameter of hole 6" inches. Soil data from test hole: Depth, inches Soil texture 0-10" Dark brown loam 10yr3/2 10"-12" Brown loam 10yr4/4 Method of scratching side wall: Knife Depth of gravel in bottom of hole 2 inches: Date of initial water filling 9/16/11 depth of initial water filling 12 inches above 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 Time Time Depth Drop in H2O Perc Rate 9:33 10:03 6" 5.5 5.4 10:04 10:34 6" 5.5 5.4 10:41 11:11 6" 5.5 5.4 AVERAGE PERC. RATE 5.4 MPI 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 September 22,2011 Arthur J.Nelson Estate. Proposed Lott Orono,Hennepin County This on-site Sewage Treatment System is partially designed for a Type 1,five-bedroom home in accordance with the Minnesota Pollution Control Agency Chapter 7080 and local ordinances. Once the house size and location are chosen this design can be completed. The periodically saturated soils were located at 20-28 inches below grade(mottled soil).Due to the periodically saturated soils,a pressurized mound system 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. The soils at a depth of 12"have a percolation rate averaging 6 MPI. The absorption areas do not overlap. Use 7/32 inch perforations must be used on the laterals. All tanks need to be insulated if there is less than two feet of cover over the top of the tanks.A filter needs to be installed on the second tank.Clean outs must be installed on the end of the laterals for maintenance. A 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 a light and sound device;this is in case of a pump failure. Keep all heavy equipment off of the proposed treatment areas before and after construction.The treatment area must be fenced off before construction begins.This Design is not valid&the System will need to be relocated if failure to protect the areas proposed for the On-Site Sewage Treatment systems occurs. Nothing other than gray water,(laundry,showers,ect.)human water&toilet tissue should be disposed of into the septic tanks.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, CITY OF O ' O 0 SEPTIC PE' IT • /' REVI Tik INSPECTOR Joseph J.Olson DATl RMITE NO._,,_,, APPROVED--A S SUBMITTED RAPPROVED WITH CORRECTIONS AS NOTED NOT APPROVED-CORRECT&RESUBMIT laSYSTEM IS DESty, These comments are for your information. AU work shall be dons TVII in full compliance with all applicable septic and zoning code. BEDROOMS. ANY i INCREASE VI`IUMBEITI Requirements including items not specifically noted in this review. 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V .s. . = = r) . : . a* ../1 r- 1 --i -1 ,,- L.-_ Minnesota Pollution OSTP Design Summary Worksheet UNIVERSITY Control Agency OF MINNESOTA -- "— ; Property Owner/Client: Arthur J. Nelson Estate v 11.05.31 Site Address: Proposed lot 1, Orono, MN 55356 Site A 1. AVERAGE DESIGN FLOW: A. Design Flow: 750 Gallons Per Day(GPD) Note: The estimated design flow is considered a peak flow rote including a safety factor.For long term performance,the average daily flow is recommended to be< B. Septic Tank capacity: 2250 Gallons 60%of this value. C. Number of Septic Tanks or Compartments: 2 Effluent Screen&Alarm? Yes — Type of Soil Treatment and Dispersal Area* Type of Distribution* Q Trenches Q Bed ©Mound 0 At-Grade Q Gravity Distribution 0 Pressure Distribution-Level 0 Pressure Distriution-Unlevel Q Drip Distribution 0 None-Holding Tanks Only *Selection Required Benchmark Elev= 100 ft System Type Benchmark Location: Test hole# 1 C Type I ❑Type II ElType III E]Type IV D Type V Type of Distribution Media: Rock D. Pump Tank 1 Capacity: Gallons Pump Tank 2 Capacity: Gallons 2. SITE EVALUATION: A. Depth to Limiting Layer: 28 inches 2.3 ft Elevation of Limiting Layer: 97.7 ft B. Measured Percent Land Slope: 4.0 % 0.0 C. Soil Texture: Loam Percolation Rate: 6 Minutes per Inch D. Soil Hydraulic Loading Rate: 0.60 GPD/ft2 E.Contour Loading Rate 12.0 Gal/ft 3. DESIGN SUMMARY Trench Design Summary Absorption Area ft2 Sidewall Depth in Trench Width in Total Lineal Feet ft Number of Trenches Maximum Trench Depth in Designer's Max Trench Depth in Bed Design Summary Absorption Area ft2 Media Below Pipe in Bed Length ft Bed Width ft Maximum Bed Depth in Designer's Max Bed Depth in Mound Design Summary Absorption Area 625 ft2 Bed Length 63 ft Bed Width 10.0 ft Absorption Width 20.0 ft Clean Sand Lift 1.0 ft Berm Width (slope 0-1%) ft Upslope Berm Width 10.4 ft Downslope Berm Width 16.2 ft Endslope Berm Width 10.2 ft Total System Length 83 ft Total System Width 37 ft At-Grade Design Summary Absorption Bed Width ft Absorption Bed Length ft System Height ft Absorption Bed Area ft2 Upslope Berm Width ft Downslope Berm Width ft I I_ — . . .. I 1_ ,. . ... ... I I.. OSTP Design Summary Worksheet UNIVERSITY Minnesota Pollution OF MINNESOTA Control Agency Pressure Distribution Summary No. of Perforated Laterals 3 Perforation Spacing 3 ft Perforation Diameter 7/32 in Lateral Diameter 2.00 in Supply Pipe Diameter 0 in Minimum Dose Volume 0 Flow Rate 36 GPM Total Head ft Maximum Dose Volume 187.5 Holding Tanks Only Number of Holding Tanks Total Volume of Holding Tanks gallons High Level Alarm? 4. ORGANIC LOADING(if pretreatment is being used) Organic Loading to Pre-Treatment Unit =Design Flow X Estimated BOD in mg/L in the effluent X 8.35: 1,000,000 gpd X mg/L X 8.35: 1,000,000= lbs BOD/day Calculate System Organic Loading: lbs. BOD/day :Bottom Area =lbs/day/ft2 lbs/day= ft2= lbs/day/ft2 Comments/Special Design Considerations: I hereby certify that I have completed this work in accordance with all applicable ordinances, rules and laws. Joseph J Olson 810 09/22/11 (Designer) (Signature) (License#) (Date) OSTP Mound Design UNIVERSITY Minnesota Pollution Worksheet > 1% Slope OF MINNESOTA Control Agency 1. SYSTEM SIZING: v 11.05.31 A. Design Flow(Flow&Soil- 1.A) : 750 GPD Table I MOUND CONTOUR LOADING RATES: B. Soil Loading Rate(Flow&Soil-3.C): 0.60 GPD/ft2 Measured • Texture,-derived Contour C. Depth to Limiting Condition: 2.3 ft Parc Rate OR mound absorption ratio Loading D. Percent Land Slope: 4.0 % 60mpi 1.0. 1.3, 2.0. 2.4. 2.5 • _12 E. Design Media Loading Rate: 1.2 GPD/ft2 51-120 mpi OR 5.0 • _12 F. Mound Absorption Ratio(Table IXa): 2.00 _ 120 moi' P5.0' -5 G. Design Contour Loading Rate: 12.0 GPD/ft 'Systems with these values are not Type I systems. (From Table I - same as Linear Loading Rate) Contour Loading Rate is a recommended value. 2. DISPERSAL MEDIA SIZING A. Calculate Required Dispersal Bed Area:Design Flow (1.A):Design Media Loading Rate (1.E)=ft2 If a larger dispersal media 750 GPD= 1.20 GPD/ft2 = 625 ft2 area is desired,enter size: 630 ft2 B. Calculate Dispersal Bed Width: Contour Loading Rate (1.G):Design Media Loading Rate (1.E)=Bed Width 12.0 ft = 1.2 gpd/ft2 = 10 ft C. Calculate Dispersal Bed Length: Dispersal Bed Area (2.A) :Bed Width (2.B)=Bed Length 630 ft2 : 10 ft = 63 ft D. Select Dispersal Media: Cl Rock El Other Approved Media 3. ABSORPTION AREA SIZING Note:Mound setbacks are measured from the Absorption Area. A. Calculate Absorption Width:Bed Width (2.B)X Mound Absorption Ratio (1.F)=Absorption Width 10.0 ft x 2.0 = 20.0 ft B. For slopes>1%, the Absorption Width is measured downhill from the upslope edge of the Bed. Calculate Downslope Absorption Width:Absorption Width (3.A) - Bed Width (2.B)=ft 20.0 ft - 10.0 ft = 10.0 ft Comments: Slope, CLR Choice,Material issues 4. MOUND SIZING A. Calculate Clean Sand Lift: 3 feet minus Depth to Limiting Condition (1.C) = Clean Sand Lift (1 ft minimum) 3.0 ft - 2.3 ft = 1.0 ft Design Sand Lift (optional): B. Calculate Upslope Height: Clean Sand Lift (4.A) +media depth (1 ft.) +cover (1 ft.) = Upslope Height 1.0 ft + 1.0 ft + 1.0 ft= 3.0 ft D-34:Slope Mut!iplier Table Land Slope% 0 I 1 2 3 4 5 6 7 8 J 9 10 11,1 12 13 14 15 16 17 18 19 20 21 1 22 23 24 25 UpStOpe 3:1 3.00 2.91 2.83 2.75 2.68 2.61 2.54 2.48 2.42 2.36 2.31 2.26 2.21 2.17 2.13 2.09 2.06 2.03 2.00 1.97 1.95 1.95 1.91 1.89 1.87 1.85 Berm Ratio 4:1 4.00 3.85 3.70 3.57 3.45,3.33 3.23 3.12 3.03 2.94 2.86 2.78 2.70 2.62 2.55 2.48 2.41 2.35 2.29 2.23`2.18 2.13 1 2.08 2.03 1.98 1.93 Land Slope% 0 I 2 3 4 5 6 7 8 9 10 1 I 12 13 14 1 15 16 17 t8 19 I0 21 22 23 24 25 Do`anslope 3:1 3.00 3.09 3.19 3.37 3.41 3.53 3.66 3.80 3.99 4.11 4.29 4.48 4.69 4.95 5.24 5.55 5.88 6.24 6.63 7.04 7.47 7.93 8.42 8.93 9,46 10.02 Berm Ratio 4:1 4.00 4.17 4.35 4.54 4.76 5.00 5.26 5.56 5.886.25 6.67 7.14 7.69 8.25 8.92 9.57 10.24 10.94 11.67 12.42 13.19 13.90 14.82 15.67 16.54 17.44 Select Upslope Berm Multiplier (based on land slope): 3.45 (figure D-34) D. Calculate Upslope Berm Width: Multiplier (4.C)X Upslope Mound Height (4.B)= Upslope Berm Width 3.45 ft x 3.0 ft = 10.4 ft E. Calculate Drop in Elevation Under Bed: Bed Width (2.B) X Land Slope (1.D) : 100=Drop (ft) 10.0 ft x 4.0 % _ 100= 0.40 ft F. Calculate Downslope Mound Height: Upslope Height (4.B) +Drop in Elevation (4.E) =Downslope Height 3.0 ft + 0.40 ft = 3.4 ft G Select Downslope Berm Multiplier (based on land slope): 4.76 (figure D-34) H. Calculate Downslope Berm Width:Multiplier (4.G)X Downslope Height (4.F) =Downslope Berm Width 4.76 x 3.4 ft = 16.2 ft I. Calculate Minimum Berm to Cover Absorption Area:Downslope Absorption Width (3.B or 3.C) +4 ft. =ft 10.0 ft + 4 ft = 14.0 ft J. Design Downslope Berm =greater of 4H and 41: 16.2 ft K. Select Endslope Berm Multiplier: 3.00 (usually 3.0 or 4.0) L. Calculate Endslope Berm (4.K)X Downslope Mound Height (4.F)=Endslope Berm Width 3.00 ft X 3.4 ft = 10.2 ft M. Calculate Mound Width: Upslope Berm Width(4.D) + Bed Width (2.B)+Downslope Berm Width (4.J) =ft 10.4 ft + 10.0 ft + 16.2 ft = 36.5 ft N. Calculate Mound Length: Endslope Berm Width (4.L) + Bed Length (2.C) +Endslope Berm Width (4.L) =ft 10.2 ft + 63.0 ft + 10.2 ft = 83.4 ft 0. If using a registered product, enter the Component Length: in. : 12 ft. P. If using a registered product, enter the Component Width: in. : 12 ft. Q. Number of Components per Row = Bed Length (2.C) divided by Component Length (4.0) (Round up) 63 = R. Number of Rows =Bed Width (2.B)divided by Component Width (4.P) (Round up) Adjust Contour Loading Rate on Design Summary page until this number is a whole number S. Total Number of Components =Number of Components per Row X Number of Rows X = . 5. MOUND DIMENSIONS ` \ \ __ / '--- ~ __. , ------- m ' '' []p5[Ope (4.D) 10'4 "^ ` ' ` / `� / / / . . ' -�� ' LL Dispersal Bed: (Z'8XI'[> � (4.L) Nc i . , 19.2 no 1O;2 . 10 x 63 "' _ `` a.,~ _ S o ` . ' ` ' -~ ``.`___ ��vvO����� (4'J) i8'� ____''' o I— „......_, ,. �/ \ `~ `` ~~ 83.4 Total Mound Length /4'N\ / ~ ` ' y 4^ inspection pipe 18” cover on top Umslooe berm (4.D) Downslope berm (4.J) 16.2 10'4 1.0 Clean sand lift (4.A) l] D+pdh toUomh (|l) Linn!inc; [^i`ciitio -- - - -- - - - -- -- -___--' - --- - Width (3'�) -- ----- / Absorptionf- 20'QNote: ' For to 1% slopes, Absorption Width is measured from the Bey/equally in both directions. • OSTP Mound Materials Worksheet UNIVERSITY Minnesota Pollution OF MINNESOTA , ,r,�, Control Agency A.Calculate Bed(rock)Volume:Bed Length (2.C)X Bed Width (2.B)X Depth =Volume (ft3) v 11.05.31 63.0 ft X 10.0 ft X 1.0 = 630.0 ft3 Divide ft3 by 27 ft'/yd3 to calculate cubic yards: 630.0 ft3 : 27 = 23.3 yd3 Add 20%for constructability: 23.3 yd3 X 1.2 = 28.0yd 3 B. Calculate Clean Sand Volume: Volume Under Rock bed:Average Sand Depth x Media Width x Media Length =cubic feet 1.2 0.0 1.2 ft X 10.0 ft X 63.0 ft = 756.0 ft3 For a Mound on a slope from 0-1% Volume from Length=((Upslope Mound Height-1)X Absorption Width Beyond Bed X Media Bed Length) ft -1) X X ft = Volume from Width=((Upslope Mound Height-1)X Absorption Width Beyond Bed X Media Bed Width) Ift -1) X X ft = Total Clean Sand Volume:Volume from Length+Volume from Width+Volume Under Media ft3 + ft3 + ft3 = ft3 For a Mound on a slope greater than 1% Upslope Volume:((Upslope Mound Height - 1)x 3 x Bed Length)+2=cubic feet ((r 3.0 ft -1) X 3.0ft X 63.0 )+2= 189.0 ft3 Downslope Volume:((Downslope Height-1)x Downslope Absorption Width x Media Length)+2=cubic feet ((r 3.4 ft-1) X 10.0 ft X 63.0 )+2= 756.0 ft3 Endslope Volume:(Downslope Mound Height- 1)x 3 x Media Width =cubic feet (r 3.4 ft-1 ) X 3.0 ft X 10.0 ft = 72.0 ft3 Total Clean Sand Volume:Upslope Volume +Downslope Volume +Endslope Volume +Volume Under Media 189.0 ft3 + 756.0 ft3 + 72.0 ft' + 756.0 ft3= 1773.0 ft3 Divide ft3 by 27 ft'/yd3 to calculate cubic yards: 1773.0 ft3 + 27 = 65.7 yd3 Add 20%for constructability: 65.7 yd3 X 1.2 = 78.8 yd3 C. Calculate Sandy Berm Volume: 3.2 0.0 Total Berm Volume(approx):((Avg.Mound Height-.5 ft topsoil)x Mound Width x Mound Length)+2=cu.ft. ( 3.2 - 0.5 )ft X 36.5 ft X 83.4 )+2= 4113.4 ft3 Total Mound Volume-Clean Sand volume-Rock Volume=cubic feet 4113.4 ft3 - 1773.0 ft' - 630.0 ft3 = 1710.4 ft3 Divide ft3 by 27 ft3/yd3 to calculate cubic yards: 1710.4 ft3 : 27 = 63.3 yd3 Add 20%for constructability: 63.3 yd3 x 1.2 = 76.0 yd3 D. Calculate Topsoil Material Volume:Total Mound Width X Total Mound Length X.5 ft 36.5 ft X 83.4 ft X 0.5 ft = 1523.5 ft3 Divide ft3 by 27 ft3/yd3 to calculate cubic yards: 1523.5 ft3 : 27 = 56.4 yd3 Add 20%for constructability: 56.4 yd3 x 1.2 = 67.7 yd3 OSTP Pressure Distribution UNIVERSITY Minnesota Pollution Design Worksheet OF MINNESOTA �� Control Agency ��ti 1. Select Number of Perforated Laterals in system/zone: 3 Geotext(te �,:v V '�p�^ v' �to Ove .gip_ v ::.p IL 6ep&C Minimum l7pp ;IC?J♦-,1 (2 feet is minimum and 3 feet is maximum spacing) ='!^�r oration::��ea 3�apart r trR�2'of rock ;�'., '2. Select Perforation Spacing: 3.0 ft i, , , , ,, t2 A...!,l► ►y ► ',;! ►, 9 of rock , �, �, �, �., o -, , r� 3. Select Perforation Diameter Size 7/32 inch Perforation sizing:'/,"to yr Perforation spacing:2'to 3' 4. Length of Laterals =Media Bed Length-2 Feet. Perforation can not be closer then 1 foot from edge. v 11.05.31 63 - 2ft = 61 ft 5. Determine the Number of Perforation Spaces. Divide the Length of Laterals (Line 4)by the Perforation Spacing (Line 2)and round down to the nearest whole number. Number of Perforation Spaces = 61 ft 3 ft = 20 Spaces 6. Number of Perforations per Lateral is equal to 1.0 plus the Number of Perforation Spaces (Line 5). Perforations Per Lateral = 20 Spaces + 1 = 21 Perfs. Per Lateral Check table below to verify the number of perforations per lateral guarantees less than a 10%discharge variation. The value is double if the a center manifold is used. Maximum Number of Perforations Per Lateral to Guarantee<1096 Discharge Variation .Inch Perforations 7/32 Inch Perforations Perforation Spacing(Feet) Pipe Diameter(Inches) Perforation Spacing Pipe Diameter(inches) i 1 114 11; 2 3 (Feet) 1 11 11: 2 3 2 10 13 18 30 60 2 11 16 21 3468 i 21: 8 12 16 28 54 254 10 14 20 32 64 3 8 12 16 25 52 3 9 14 19 30 60 3'16 Inch Perforations 1/8 Inch Perforations i Perforation Spacing(Feet) I Pipe Diameter(Inches) Perforation Spacing Pipe Diameter(Inches) 1 114 11; 2 3 (Feet) 1 1Y 117 2 3 2 12 18 26 46 87 2 21 33 44 74 149 21 12 17 24 40 80 2/ 20 30 41 69 135 3 12 16 22 37 75 3 20 29 38 64 128 7. Total Number of Perforations equals the Number of Perforations per Lateral (Line 6)multiplied by the Number of Perforated Laterals (Line 1). 21 Perf. Per Lateral X 3 Number of Perf. Laterals = 63 Total Number of Perf. 8. Calculate the Square Feet per Perforation. Recommended value is 4-10 ft2 per perforation. Perforation 0ischarge(GPM) Does not apply to At-Grades Perforation Diameter Head(ft) ,!r /,• ./" '!• Bed Area = Bed Width(ft)X Bed Length(ft) I . 0.18 0.41 0.56 0.74 1.o.5 0.22 0.51 0.69 0.9 10 ft X 63 ft = 630 ft2 2.0" 0.26 0.59 0.80 1.04 2.5 0.29 0.65 0.89 1.17 3.0 0.32 0.72 0.98 1.28 Square Foot per Perforation =Bed Area divided by the Total Number of Perforations (Line 7). 4.0 0.37 0.83 1.13 1.47 5.0` 0.41 0.93 1.26 1.65 2 fop[ Dwellings with 3/16 inch to 1/4 inch 630 ft - 63 perforations = 10.0 ft2 1/perforations perforations Dwellings with 1/8 inch perforations 2 feet Other establishments and 14515 with 3/16 9. Select Minimum Average Head: 1.0 ft inch to 1/4 inch perforations 6 feet Other establishments and MSTS with 1/8 inch perforations 10. Select Perforation Discharge (GPM)based on Table III: 0.56 GPM per Perforation 11. Determine required Flow Rate by multiplying the Total Number of Perforations (Line 7)by the Perforation Discharge (Line 10). 63 Perforations X 0.56 GPM per Perforation = 36 GPM OSTP Pressure Distribution }_, ,1� UNIVERSITY Minnesota Pollution Design Worksheet OF MINNESOTA Control Agency ,-A�_; 12. Select Type of Manifold Connection (End or Center): End ❑ Center 13. Select Lateral Diameter: 2.00 in Table II Volume of Liquid in 14. Volume of Liquid Per Foot of Distribution Piping: 0.170 Gallons/ft Pipe Pipe Liquid 15. Volume of Distribution Piping = Diameter Per Foot = [Number of Perforated Laterals (Line 1)X Length of Laterals (Line 4)X (inches) (Gallons) (Volume of Liquid Per Foot of Distribution Piping (Line 14)] 1 0.045 1.25 0.078 3 x 61 ft X 0.170 gal/ft = 31.1 Gallons 1.5 0.110 16. Minimum Dose=Volume of Distribution Piping(Line 15)X 4 2 0.170 3 0.380 31.1 gals X 4 = 124.4 Gallons 4 0.661 - Cleanouts - - - -_ _ manifold pipe` J - w `I i' Manifold pipe, 1 i I I _ `� pipe from pump ' clean outs `.". ' Alternate location of pipe from pump 1- alternate location Pipe from pump V of pipe from pump • Minnesota Pollution OSTP Design Summary Worksheet UNIVERSITY �: Control Agency OF MINNESOTA _�,� Property Owner/Client: Arthur J. Nelson Estate v 11.05.31 Site Address: Proposed lot 1, Orono, MN 55356 Site B 1. AVERAGE DESIGN FLOW: A. Design Flow: 750 Gallons Per Day(GPD) Note: The estimated design flow is considered a peak flow rate including a safety factor.For long term performance, the average daily flow is recommended to be< B. Septic Tank capacity: 2250 Gallons 60%of this value. C. Number of Septic Tanks or Compartments: 2 J Effluent Screen&Alarm? Yes Type of Soil Treatment and Dispersal Area* Type of Distribution* O Trenches O Bed QQ Mound 0 At-Grade 0 Gravity Distribution Q Pressure Distribution-Level 0 Pressure Distribution-Unlevel O Drip Distribution 0 None-Holding Tanks Only 'Selection Required Benchmark Elev= 100 ft System Type Benchmark Location: Test hole# 1 ice,Type I ;'1 Type II El Type ill fl Type IV fl Type V Type of Distribution Media: Rock D. Pump Tank 1 Capacity: Gallons Pump Tank 2 Capacity: Gallons 2. SITE EVALUATION: A. Depth to Limiting Layer: 22 inches 1.8 ft Elevation of Limiting Layer: 96.7 ft B. Measured Percent Land Slope: 4.0 % 0.0 C. Soil Texture: Loam Percolation Rate: 6 Minutes per Inch D. Soil Hydraulic Loading Rate: 0.60 GPD/ftz E. Contour Loading Rate 12.0 Gal/ft 3. DESIGN SUMMARY Trench Design Summary Absorption Area ftz Sidewall Depth in Trench Width in Total Lineal Feet ft Number of Trenches Maximum Trench Depth in Designer's Max Trench Depth in Bed Design Summary Absorption Area ftz Media Below Pipe in Bed Length ft Bed Width ft Maximum Bed Depth in Designer's Max Bed Depth in Mound Design Summary Absorption Area 625 ft2 Bed Length 63 ft Bed Width 10.0 ft Absorption Width 20.0 ft Clean Sand Lift 1.2 ft Berm Width (slope 0-1%) ft Upslope Bemi Width 10.2 ft Downslope Berm Width 17.0 ft Endslope Berm Width 10.7 ft Total System Length 84 ft Total System Width 37 ft At-Grade Design Summary Absorption Bed Width ft Absorption Bed Length ft System Height ft Absorption Bed Area ftz Upslope Berm Width ft Downslope Berm Width ft Endslope Berm Width ft System Length ft System Width ft OSTP Design Summary Worksheet UNIVERSITY Minnesota Pollution t Control Agency OF MINNESOTA Pressure Distribution Summary No.of Perforated Laterals 3 Perforation Spacing 3 ft Perforation Diameter 7/32 in Lateral Diameter 2.00 in Supply Pipe Diameter 0 in Minimum Dose Volume 0 Flow Rate 36 GPM Total Head ft Maximum Dose Volume 187.5 Holding Tanks Only Number of Holding Tanks Total Volume of Holding Tanks gallons High Level Alarm? 4. ORGANIC LOADING(if pretreatment is being used) Organic Loading to Pre-Treatment Unit =Design Flow X Estimated BOD in mg/L in the effluent X 8.35:1,000,000 gpd X mg/L X 8.35÷1,000,000= lbs BOD/day Calculate System Organic Loading: lbs. BOD/day :Bottom Area =lbs/day/ft2 lbs/day= ft2= lbs/day/ft2 Comments/Special Design Considerations: I hereby certify that I have completed this work in accordance with all applicable ordinances, rules and taws. Joseph J Olson 810 09/22/11 (Designer) (Signature) (License#) (Date) OSTP Mound Design UNIVERSITY Minnesota Pollution Worksheet > 1 % Slope OF MINNESOTA Control Agency 1• SYSTEM SIZING: v11.05.31 A. Design Flow(Flow&Soil- 1.A) : 750 GPD Table I MOUND CONTOUR LOADING RATES: B. Soil Loading Rate(Flow&Soil-3.C): 0.60 GPD/ft2 Mcawrod • Tcxturo-durivcd Contour g C. Depth to Limiting Condition: 1.8 ft Porc Rate OR mound absorption ratio t oRaadQ D. Percent Land Slope: 4.0 % 601-npi 1.0. 1.3. 2.0.2.-1.2.6 - :12 E. Design Media Loading Rate: 1.2 GPD/ft2 61-120 OR 5.0 :12 F. Mound Absorption Ratio(Table IXa): 2.00 _ 120 row' p5.0. • :b• G. Design Contour Loading Rate: 12.0 GPD/ft *Systems with these values are not Type I systems. (From Table I -same as Linear Loading Rate) Contour Loading Rate is a recommended value. 2. DISPERSAL MEDIA SIZING A. Calculate Required Dispersal Bed Area:Design Flow (1.A):Design Media Loading Rate (1.E)=ft2 If a larger dispersal media 750 GPD: 1.20 GPD/ft2 = 625 ft2 area is desired,enter size: 630 ft2 B. Calculate Dispersal Bed Width: Contour Loading Rate (1.G)a Design Media Loading Rate (1.E) =Bed Width 12.0 ft = 1.2 gpd/ft2 = 10 ft C. Calculate Dispersal Bed Length: Dispersal Bed Area (2.A):Bed Width (2.B)=Bed Length 630 ft2 : 10 ft = 63 ft D. Select Dispersal Media: E1 Rock ❑Other Approved Media 3. ABSORPTION AREA SIZING Note:Mound setbacks are measured from the Absorption Area. A. Calculate Absorption Width:Bed Width (2.B)X Mound Absorption Ratio (1.F)=Absorption Width 10.0 ft x 2.0 = 20.0 ft B. For slopes>1%, the Absorption Width is measured downhill from the upslope edge of the Bed. Calculate Downslope Absorption Width:Absorption Width (3.A) -Bed Width (2.B)=ft 20.0 ft - 10.0 ft = 10.0 ft Comments: Slope, CLR Choice,Material issues 4. MOUND SIZING A. Calculate Clean Sand Lift: 3 feet minus Depth to Limiting Condition (1.C) = Clean Sand Lift (1 ft minimum) 3.0 ft - 1.8 ft = 1.2 ft Design Sand Lift (optional): B. Calculate Upslope Height: Clean Sand Lift (4.A) +media depth (1 ft.) +cover (1 ft.) = Upslope Height 1.2 ft + 1.0 ft + 1.0 ft= 3.2 ft 0-34:Slope Multiplier Ta'.le Land Slope ib 0 1 2 3 I 4 5 6 I 7 8 1 9 10! 11 12 13 14 15 16 17 18 19 20 21 1 22 23 24 25 1,11)51ope 3:1 3.08 2.91 2.83 2.75 2.68 2.61 2.54 2.48 2.42 2.36 2.31 2.26 2.21 2.17 2.13 2.09 2.06 2.03 2.00 1.97 1.95 1.93 1.91 1.89 1.67 1.85 64..?1 Ratio 4:1.4.00 3.85 3.70 3.57 3.45 3.33 3.23 3.12 3.03,2.94 2.86 2.7812.70 2.62 2.55 2.48 2.41 2.35 2.29 2.23 2.18 2.13 2.08 2.03 1.98 1.93 Land Slope% 0 1 2 3 4 5 6 17 8 19 10 11 22 13 14 15 16 17 18 19 20 21 22 23 24 25 Downslope 3:1 3.0C 3.09 3.19 3.30 3.41 3.53 3.66 3.60 3.95 4.11 4.29 4.43 4.69 4.95 5.24 5.55 5.88 6.24 6.63 7.04 7.47 7.93 8.42 8.93 9.46 10.02 Berra Ratio 4:1 4.00 4.17 4.35 4.54 1.76 5.00 5.2615.56 5.8816.25 6.67 7.24 7.69 8.29 8.92 9.57 10.24 10.94 11.67 12.42 13.19 13.99 14.82 25.67 16.54 17.44 C Select Upslope Berm Multiplier (based on land slope): 3.23 (figure D-34) D. Calculate Upslope Berm Width: Multiplier (4.C)X Upslope Mound Height (4.B) = Upslope Berm Width 3.23 ft X 3.2 ft = 10.2 ft E. Calculate Drop in Elevation Under Bed: Bed Width (2.B) X Land Slope (1.D) : 100=Drop (ft) 10.0 ft X 4.0 % : 100= 0.40 ft F. Calculate Downslope Mound Height: Upslope Height (4.B) +Drop in Elevation (4.E) =Downslope Height 3.2 ft + 0.40 ft = 3.6 ft G. Select Downslope Berm Multiplier (based on land slope): 4.76 (figure D-34) H. Calculate Downslope Berm Width:Multiplier (4.G)X Downslope Height (4.F) =Downslope Berm Width 4.76 x 3.6 ft = 17.0 ft I. Calculate Minimum Berm to Cover Absorption Area:Downslope Absorption Width (3.B or 3.C) +4 ft. =ft 10.0 ft + 4 ft = 14.0 ft J. Design Downslope Berm =greater of 4H and 41: 17.0 ft K. Select Endslope Berm Multiplier: 3.00 (usually 3.0 or 4.0) L. Calculate Endslope Berm (4.K)X Downslope Mound Height (4.F)=Endslope Berm Width 3.00 ft x 3.6 ft = 10.7 ft M. Calculate Mound Width: Upslope Berm Width(4.D) +Bed Width (2.B) +Downslope Berm Width (4.J)=ft 10.2 ft + 10.0 ft + 17.0 ft = 37.2 ft N. Calculate Mound Length: Endslope Berm Width (4.L) +Bed Length (2.C) +Endslope Berm Width (4.L) =ft 10.7 ft + 63.0 ft + 10.7 ft = 84.4 ft O. If using a registered product, enter the Component Length: in. : 12 ft. P. If using a registered product, enter the Component Width: in. : 12 ft. Q. Number of Components per Row =Bed Length (2.C)divided by Component Length (4.0) (Round up) 63 R. Number of Rows =Bed Width (2.B) divided by Component Width (4.P) (Round up) Adjust Contour Loading Rate on Design Summary page until this number is a whole number S. Total Number of Components =Number of Components per Row X Number of Rows X = 5. MOUND DIMENSIONS \ \ ,. ____, ------- ,4 Upstope (4.D) 10.2 M i i � \ i I i `Endslope (4.L) Dispersal Bed: (2.B x 2.C) -o ,Endslope (4.L) 1q.7 10 x 63 �^ 107 c msL.) C i 0 ` s Downslope (4.J) 17.0 a \ \ Total Mound Length (4.N) 84.4 / f 4" inspection pipe 18" cover on top Upslope berm (4.D) / Downslope berm (4.J) 17.0 J' 10.2 12" cover on sides (6" topsoil) 1.2 Clean sand lift (4.A) 1.8 Depth to Lirnitiri , i1.C) Absorption Width (3.A) / Note: 20.0 For 0 to 1% slopes, Absorption Width is measured from the Bedequally in both directions. For slopes >1%, Absorption Width is measured downhill from the upslope edge of the Bed. OSTP Mound Materials Worksheet UNIVERSITY Minnesota Pollution OF MINNESOTA y,.‹`; Control Agency A. Calculate Bed (rock)Volume:Bed Length (2.C)X Bed Width (2.B)X Depth =Volume (ft3) v 11.05.31 63.0 ft X 10.0 ft X 1.0 = 630.0 ft3 Divide ft3 by 27 ft3/yd3 to calculate cubic yards: 630.0 ft3 + 27 = 23.3 yd3 Add 20%for constructability: 23.3 yd3 X 1.2 = 28.0 yd3 B. Calculate Clean Sand Volume: Volume Under Rock bed:Average Sand Depth x Media Width x Media Length =cubic feet 1.4 0.0 1.4 ft X 10.0 ft X 63.0 ft = 861.0 ft3 For a Mound on a slope from 0-1% Volume from Length=((Upslope Mound Height-1)X Absorption Width Beyond Bed X Media Bed Length) ft -1) X X ft Volume from Width=((Upslope Mound Height-1)X Absorption Width Beyond Bed X Media Bed Width) ! ft -1) X X ft = Total Clean Sand Volume:Volume from Length+Volume from Width+Volume Under Media ft3 + ft3 + ft3 = ft3 For a Mound on a slope greater than 1% Upslope Volume:((Upslope Mound Height -1)x 3 x Bed Length)+2=cubic feet (( 3.2 ft -1) X 3.Oft X 63.0 )+2= 204.8 ft3 Downslope Volume:((Downslope Height-1)x Downslope Absorption Width x Media Length)+2=cubic feet (( 3.6 ft-1) X 10.0 ft X 63.0 )+2= 808.5 ft3 Endslope Volume:(Downslope Mound Height-1)x 3 x Media Width =cubic feet ( 3.6 ft-1 ) X 3.0 ft X 10.0 ft = 77.0 ft3 Total Clean Sand Volume:Upslope Volume +Downslope Volume +Endslope Volume +Volume Under Media 204.8 ft3 + 808.5 ft3 + 77.0 ft3 + 861.0 ft3= 1951.3 ft3 Divide ft3 by 27 ft3/yd3 to calculate cubic yards: 1951.3 ft3 + 27 = 72.3 yd3 Add 20%for constructability: 72.3 yd3 X 1.2 = 86.7 yd3 C. Calculate Sandy Berm Volume: 3.4 0.0 Total Berm Volume(approx):((Avg.Mound Height-.5 ft topsoil)x Mound Width x Mound Length)+2=cu.ft. ( 3.4 - 0.5 )ft X 37.2 ft X 84.4 )+2= 4500.9 ft3 Total Mound Volume-Clean Sand volume-Rock Volume=cubic feet 4500.9 ft3 - 1951.3 ft3 - 630.0 ft3 = 1919.6 ft3 Divide ft3 by 27 ft3/yd3 to calculate cubic yards: 1919.6 ft3 + 27 = 71.1 yd3 Add 20%for constructability: 71.1 yd3 x 1.2 = 85.3 yd3 D.Calculate Topsoil Material Volume:Total Mound Width X Total Mound Length X.5 ft 37.2 ft X 84.4 ftX 0.5ft = 1570.1 ft3 Divide ft3 by 27 ft3/yd3 to calculate cubic yards: 1570.1 ft3 + 27 = 58.2 yd3 Add 20%for constructability: 58.2 yd3 x 1.2 = 69.8 yd3 OSTP Pressure Distribution UNIVERSITY1' Minnesota Pollution Design Worksheet OF MINNESOTA • Control Agency �.�� . 1. Select Number of Perforated Laterals in system/zone: 3w d ceoeel;� ( I a emieem ��-,t,.- Minimum�i';'►,�., -',,'-'..,'J_.''.,'. (2 feet is minimum and 3 feet is maximum spacing) '/< perforations spaced 3 apart K?';a 2 of rock-`y ' 2. Select Perforation Spacing: ; ' �{; )? f Pa g 3.0 ft a , Y, R, � , 3. Select Perforation Diameter Size 7132 inch Perforation sizing:I. to'I." Perforation spacing:2'to 3' 4. Length of Laterals =Media Bed Length-2 Feet. Perforation can not be closer then 1 foot from edge. v 11.05.31 63 - 2ft = 61 ft 5- Determine the Number of Perforation Spaces. Divide the Length of Laterals (Line 4)by the Perforation Spacing (Line 2)and round down to the nearest whole number. Number of Perforation Spaces = 61 ft - 3 ft = 20 Spaces 6. Number of Perforations per Lateral is equal to 1.0 plus the Number of Perforation Spaces (Line 5). Perforations Per Lateral = 20 Spaces + 1 = 21 Perfs.Per Lateral Check table below to verify the number of perforations per lateral guarantees less than a 10%discharge variation. The value is double if the a center manifold is used. Maximum Number of Perforations Per Lateral to Guarantee.1096 Discharge Variation V.Inch Perforations 7/32 Inch Perforations Pipe Diameter(Inches) Perforation Spacing Pipe Diameter(Inches) Perforation Spacing(Feet) I t 114 11/2 2 3 (Feet) 1 11/4 112 2 3 2 10 13 18 30 60 2 11 16 21 34 68 212 8 12 16 28 54 212 10 14 20 32 64 3 8 12 16 25 52 3 9 14 19 30 60 3/16 Inch Perforations 1/8 Inch Perforations , 1 Pipe Diameter(inches) Perforation Spacing Pipe Diameter(Inches) Perforation Spacing(Feet) 1 114 112 2 3 (Feet) 1 114 11 2 3 2 12 18 26 46 87 2 21 33 44 74 149 212 12 17 24 40 80 21 20 30 41 69 135 3 12 16 22 37 75 3 20 29 38 64 128 7- Total Number of Perforations equals the Number of Perforations per Lateral (Line 6)multiplied by the Number of Perforated Laterals (Line 1). 21 Perf. Per Lateral X 3 Number of Perf. Laterals = 63 Total Number of Perf. 8. Calculate the Square Feet per Perforation. Recommended value is 4-10 ft 2 per perforation. Perforation Discharge(0F) Does not apply to At-Grades Perforation Diameter Mead(rt) ,/. ',,. 7,.,t '/. Bed Area = Bed Width(ft)X Bed Length(ft) ,.o• 0.18 0.41 0.56 0.74 1.5 0.22 0.51 0.69 0.9 10 ft X 63 ft = 630 ft2 zoo 0.26 0.59 0.80 1.04 2.5 0.29 0.65 0.89 1.17 3.0 0.32 0.72 0.98 1.28 Square Foot per Perforation =Bed Area divided by the Total Number of Perforations (Line 7). 4.0 0.37 0.83 1.13 1.47 5.0' 0.41 0.93 1.26 1.65 j Dwellings with 3/t6 inch to 114 inch 630 ft - 63 perforations = 10.0 ft2/perforations 'foot perforaclom Dwellings with I/8 inch perforations 2 feet Other establishments and MSTS with 1/16 9. Select Minimum Average Head: 1.0 ft inch to 1/4 inch perforations 5 feet Other establishments and MSTS with lig inch perforations 10. Select Perforation Discharge (GPM)based on Table III: 0.56 GPM per Perforation 11- Determine required Flow Rate by multiplying the Total Number of Perforations (Line 7)by the Perforation Discharge (Line 10). 63 Perforations X 0.56 GPM per Perforation = 36 GPM Minnesota Pollution OSTP Pressure Distribution Y ' UNIVERSITYF7I4. t, Design Worksheet OF MINNESOTA = `� Control Agency 12. Select Type of Manifold Connection (End or Center): 0 End L Center 13. Select Lateral Diameter: 2.00 in Table H Volume of Liquid in 14. Volume of Liquid Per Foot of Distribution Piping: 0.170 Gallons/ft Pipe Pipe Liquid 15. Volume of Distribution Piping = Diameter Per Foot =[Number of Perforated Laterals (Line 1)X Length of Laterals (Line 4)X (inches) (Gallons) (Volume of Liquid Per Foot of Distribution Piping(Line 14)] 1 0.045 3 X 61 ft X 0.170 gal/ft = 31.1 Gallons 1.25 0.078 1.5 0.110 16. Minimum Dose=Volume of Distribution Piping(Line 15)X 4 2 0.170 3 0.380 31.1 gals X 4 = 124.4 Gallons 4 0.661 - cleanouts — ---_ manifold pipe s I J Manifold pipe-, J w` _ pipe from pump e. 1100 clean outs , `,.�> Alternate location iiiii of pipe from pump • 0 is ..\..... ` alternate location Pipe from pump of pipe from pump Logs of Soil Borings License#810 Location or Project: Arthur J Nelson Proposed Lot 1 Borings made by: Rusty Olson's Soil and Perc testing 9/18/2011 Classification System: AASHO ; USDS•USDS-SCS X ; Unified ; Other Auger used (check two): Hand_X_, or Power , Flight, Bucket or Probe_X_ Boring Number_1_Surface elevation 100.0_ Mottled Soil at_2.3_feet 0"-6" Dark brown loam 10yr3/2 H2O present at_X_ 6"-14" Brown loam 10yr4/4 14"-28" Brown loam 10yr5/4 28"-32" Rusty brown loam 10yr5/4 Boring Number_2_Surface elevation_100.0_ Mottled Soil at_2.3_feet 0"-6" Dark brown loam 10yr3/2 H2O present at_X__ 6"-14" Brown loam 10yr4/4 14"-28" Brown loam 10yr5/4 28"-32" Rusty brown loam 10yr5/4 Boring Number_3_Surface Elevation_98.5 Mottled Soil at_1.8 feet 0"-10" Dark brown loam 10yr3/2 H2O present at_X_ 10"-18" Brown loam 10yr4/4 18"-22" Brown loam 10yr5/4 22"-30" Rusty brown loam 10yr5/4 Boring Number 4_ Surface elevation_98.5_ Mottled Soil at_2.1_feet 0"-10" Dark brown loam 10yr3/2 H2O present at_X 10"-20" Brown loam 10yr4/4 20"-26" Brown loam 10yr5/4 26"-30" Rusty brown loam 10yr5/4 Boring Number 5_Surface elevation_100.0_ Mottled Soil at_2.3_feet 0"-6" Dark brown loam 10yr3/2 H2O present at_X_ 6"-14" Brown loam 10yr4/4 14"-28" Brown loam 10yr5/4 28"-32" Rusty brown loam 10yr5/4 Boring Number 6_Surface elevation_97.3_ Mottled Soil at_1.7_feet 0"-10" Dark brown loam 10yr3/2 H2O present at_X_ 10"-16" Brown loam 10yr4/4 16"-20" Brown loam 10yr5/4 20"-30" Rusty brown loam 10yr5/4 Percolation Test Data Sheet Lic.#810 Percolating test readings made by: Rusty Olson's Perc. starting at 9:20 A.M. On 9/19/11 Location: Arthur J. Nelson Estate: Proposed lot 1 Hole number: 1 Date hole was prepared 9/18/11 Depth of hole bottom 12"_inches, Diameter of hole 6" inches. Soil data from test hole: Depth, inches Soil texture 0-6" Dark brown loam 10yr312 6"-12" Brown loam 10yr4/4 Method of scratching side wall: Knife Depth of gravel in bottom of hole 2 inches: Date of initial water filling 9/19/11 depth of initial water filling 12 inches above 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 I Time Time Depth Drop in H2O Perc Rate I 9:30 10:00 6" 5.5 5.4 10:07 10:37 6" 5.5 5.4 10:38 11:08 6" 5.5 5.4 I AVERAGE PERC. RATE 5.4 MPI I Percolation Test Data Sheet Lic.#810 Percolating test readings made by: Rusty Olson's Perc. starting at 9:20 A.M. On 9/19/11 Location: Arthur J. Nelson Estate: Proposed lot 1 Hole number: 2 Date hole was prepared 9/18/11 Depth of hole bottom_12"_inches, Diameter of hole 6" inches. Soil data from test hole: Depth, inches Soil texture 0-10" Dark brown loam 10yr3/2 10"-12" Brown loam 10yr4/4 Method of scratching side wall: Knife Depth of gravel in bottom of hole 2 inches: Date of initial water filling 9/19/11 depth of initial water filling 12 inches above 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 Time Time Depth Drop in H2O Perc Rate 9:31 10:01 6" 4.5 6.7 10:06 10:36 6" 4.3 6.9 10:39 11:09 6" 4.2 7.1 AVERAGE PERC. RATE 6.9 MPI Percolation Test Data Sheet Lic.#810 Percolating test readings made by: Rusty Olson's Perc. starting at 9:20 A.M. On 9/19/11 Location: Arthur J. Nelson Estate: Proposed lot 1 Hole number: 3 Date hole was prepared 9/18/11 Depth of hole bottom_12" inches, Diameter of hole_6"_inches. Soil data from test hole: Depth, inches Soil texture 0-10" Dark brown loam 10yr3/2 10"-12" Brown loam 10yr4/4 Method of scratching side wall: Knife Depth of gravel in bottom of hole 2 inches: Date of initial water filling 9/19/11 depth of initial water filling 12 inches above 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 Time Time Depth Drop in H2O Perc Rate 9:32 10:02 6" 5.0 6.0 10:05 10:35 6" 4.7 6.4 10:40 11:10 6" 4.6 6.5 AVERAGE PERC. RATE 6.3 MPI Percolation Test Data Sheet Lic.#810 Percolating test readings made by: Rusty Olson's Perc. starting at 9:20 A.M. On 9/19/11 Location: Arthur J. Nelson Estate: Proposed lot 1 Hole number: 4 Date hole was prepared 9/18/11 Depth of hole bottom 12"_inches, Diameter of hole_6" inches. Soil data from test hole: Depth, inches Soil texture 0-10" Dark brown loam 10yr3/2 10"-12" Brown loam 10yr4/4 Method of scratching side wall: Knife Depth of gravel in bottom of hole 2 inches: Date of initial water filling 9/16/11 depth of initial water filling 12 inches above 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 Time Time Depth Drop in H2O Perc Rate 9:33 10:03 6" 5.5 5.4 10:04 10:34 6" 5.5 5.4 10:41 11:11 6" 5.5 5.4 AVERAGE PERC. RATE 5.4 MPI DATE TIME CITY OF ORONO CALLED IN INSPECTION NOTICE SCHEDULED PERMIT NO.Q01 —Uv6u�(JC� 7'75-- '7 COMPLETED /`'7Q5-/ ADDRESS .33a s' ai1//eit,9' 1&-L OWNER TELEPHONE NO. 49!Z Cob S L/3D3 CONTRACTOR 614-11-71-11 DESCRIPTION ,& C -I C'd / it W ❑ FOOTING ❑ PLUMBING FINAL ❑ EXCAV/GRADING/FILLING • ❑ POURED WALL 0 MECHANICAL RI CILAKESHORE/WETLANDS h ❑ FRAMING 0 MECHANICAL FINAL El TREE REMOVAL • 0 INSULATION ❑ WOOD BURNER/FIREPLACE ❑ SITE INSPECTION Q 0 RADON SLAB ❑ WATER HOOK-UP ❑ PROGRESS 0 FINAL ❑ SEWER HOOK-UP 0 COMPLAINT v 0 DEMO-SITE ❑ SEPTIC MAINT. 0 FOLLOW-UP LLI ❑ DEMO-FINAL ❑ SEPTIC INSTALL 0 HARD COVER REMOVAL ❑ PLUMBING RI ❑ SEPTIC FINAL ❑ FOUNDATION/REMOVAL Z OWNER/CONTRACTOR TO MEET YOU:_YES_NO o COMMENTS: cc W Q. CC 0 I fit . 1�A l c,.�r�S 7-4-p. S j F' it K t O ( (c) 'o R : w z W ' LUQ ❑WORK SATISFACTORY:PROCEED ❑ PROJECT COMPLETE ❑CORRECT WORK&PROCEED C ISSUE CERTIFICATE OF OCCUPANCY ❑CORRECT WORK,CALL FOR REINSPECTION TEMPORARY BEFORE COVERING PERMANENT ❑CORRECT UNSAFE CONDITION WITHIN HOURS. ❑ PHOTO TAKEN INSPECTOR WILL RETURN ❑STOP ORDER POSTED.CALL INSPECTOR ❑ CITATION ISSUED ❑ INSPECTION REQUIRED.CALL TO ARRANGE ACCESS. Call for the next inspection 24 hours in advance. (952) 249-4600 Owner/Contractor on site: Lc) c...(1 Inspector: WhiteCopy/inspector's File Canary Copy/Site Notice DATE TIME CITY OF ORONO CALLED IN INSPECTION NOTICE SCHEDULED PERMIT NO. COMPLETED n ADDRESS ;2 3.2c L•- itoL..� Ht t ( ISc OWNER TELEPHON NO. CONTRACTOR i--1-e_A-e.'t ►' -s >: DESCRIPTION 5 S ' 1 S v eft, xr6 " ..) IQ0 FOOTING ❑ PLUMBING FINAL ❑ EXCAV/GRADING/FILLING Q 0 POURED WALL ❑ MECHANICAL RI ❑ LAKESHORE/WETLANDS y 0 FRAMING 0 MECHANICAL FINAL ❑ TREE REMOVAL Z ❑ INSULATION 0 WOOD BURNER/FIREPLACE ❑ SITE INSPECTION cr ❑ RADON SLAB 0 WATER HOOK-UP ❑ PROGRESS • ❑ FINAL ❑ SEWER HOOK-UP 0 COMPLAINT v ❑ DEMO-SITE 0 SEPTIC MAINT. ❑ FOLLOW-UP El DEMO-FINAL ❑ SEPTIC INSTALL ❑ HARD COVER REMOVAL v ❑ PLUMBING RI CISEPTIC FINAL 0 FOUNDATION/REMOVAL Z OWNER/CONTRACTOR TO MEET YOU:_YES_NO o COMMENTS: T�S �' cc W Q.. cc &D t u . Jed 41 cc t i/?A4 +1 Ai t.%,4-c j I 0,13 t- O LAQ Cr) -e,S 1 Q tcj 6-/i 8-? W �yA c fie ct,e cl Lc) /-1--k cc 271 4‘a__S (,... SA a W ❑WORK SATISFACTORY:PROCEED ❑ PROJECT COMPLETE CCW ❑CORRECT WORK&PROCEED ❑ ISSUE CERTIFICATE OF OCCUPANCY 0 ❑CORRECT WORK,CALL FOR REINSPECTION TEMPORARY ✓ BEFORE COVERING PERMANENT ❑CORRECT UNSAFE CONDITION WITHIN HOURS. ❑ PHOTO TAKEN INSPECTOR WILL RETURN ❑ CITATION ISSUED ❑STOP ORDER POSTED.CALL INSPECTOR ❑ INSPECTION REQUIRED.CALL TO ARRANGE ACCESS. Call for the next inspection 24 hours in advance. (952) 249-4600 Owner/Contractor on site: � /��r� Inspector. C --$ White Copy/Inspector's File Canary Copy/Site Notice