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Home My WebLink About2012-00731 - septic mound system � ' CITY OF ORONO * 2 0 1 2 - 0 0 7 3 1 * 2750 KELLEY PARKWAY DATE ISSUED: 08/06/2012 ORONO, MN 55356- (952) 249-4600 FAX: (952) 249-4616 ADDRESS : 3340 GRAHAM HILL RD PIN : OS-117-23-11-0012 LEGAL DESC : GRAHAM HILL PRESERVE 2 : LOT 4 BLOCK 2 PERMIT TYPE : SEPTIC PROPERTY TYPE : RES[DENTIAL CONSTRUCTION TYPE : NEW ACTIVITY : MOUND SYSTEM- SEPTIC NO"I�G: (3)PRECAST CONCRETE TANKS-SIZE OF`I'ANKS 1250, 1000, 1250 MOUND"CREATMENT SYSTEM-630 SQUARE FEET APPLICAIYT SEPTIC NEW 200.00 PATNODE& SONS STATE SURCHARGE SEPTIC 5.00 23200 109TH AVE TOTAL 205.00 ROGERS, MN 55374 (763)428-7393 PAID WITH CC# 5026 Minnesota State License#: 95 OWNER MCCARTY, LEROY& LISA 3340 GRAHAM HILL ROAD LONG LAKE, MN 55356- AGREEMENT AND SWORN STATEMENT The 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 hcrein.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 atter work has commenced. The applicant is responsible for assuring all required inspections are requested in conformance with the S is permit may be revoked at an ue cause. � / / / i Appli nt Permitee Signature Date Issued E3y Signature Date SEPARATE PERMITS REQUIRED FOR WORK OTHER THAN DESCRIBED ABOVE. � ' , ,�� City of Orono FOR CITY USE ONLY O p� P.o. BoX ss �-• , � 'i` Permit# ��C'/�' _ C�� .7� e�;t,�e 2750 Kelley Parkway Date Received: �; � , ,_ � a '�t��z � Crystal Bay, MN 55323 '� �� '� Amount: � a��o;�.$o` (952)249-4600 CITY OF ORONO — SEPTIC SYSTEM PERMIT APPLICATION (All permits must be approved by the On-Site Septic Manager and/or Building Official) Job Site/ Owner Information: �r. ,, �a�;�� Site Address: � � r� ��'I'��v1� f-'1 ��i+ � �D - �-- Owner: � lv�(✓� [.�-��I� �.ti-� - Mailing Address: �� A '�� '�`�, City: �i r��^�A/,c �' S Zip: .ss �� Home Phone: �� '�y 7 ' ��y�' Alternate Phone: Contractor/.Applicar�t:lnformation: _ .-� ✓— Contractor/App.: ��.�4� �'��" � S�"'`� Contact Person: r J �'}� Address: �� - �4 �l� /�cJ�'. State License #: �� City: ; C�'�=� Zip: ��5.�7`� Expiration Date: � ' �v � 3 Phone: (o/ :� � �l�`f '�S( G Alternate Phone: ��y��' � ��-� , , .��. � �° TYPES=°QF��'?CCUPA�ICY ° � � �� ' � ' ��, � � � �� , � � r . ,_,� �. �., ^�.�1.,, ^��s,�g � ,, ; _, �. �, � Residential ❑ Commercial ❑ Other � PERMIT TYPE AND FEES New or Replacement System $200.00 - ��%� � Repair Existing System 100.00 (Tanks or Drainfield) State Surcharge 5.00 5.00 Total � r��G� W:\(Permits)\Septic Permit Application-Updated Surcharge 07-28-11.doc 1 / 2 '✓ � ** ATTENTION APPLICANT ** � � Fill in ail ap�ropriate blanks and check all appropriate boxes. � I will be installing the following: Tanks �"Precast Concrete ❑ Fiberglass ❑ Plastic ❑ Other ' \ (list manufacturer) _� Number of Tanks: Size of Tanks: Sa G��U �� Treatment System Trenches s.f. ��. � � Mound �'�. � Gravel less s.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 instal�ation 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, true and re . -, Signature of Applicant :/' � ` �' Date: �� l=� MPCA License No.: �� Staff Review: Accept � ❑ Denied e Reviewer: % ' � Date: � � � ' �� .---� Reason for Denial: Comments (to be printed on inspection card): W:\(Permits)\Septic Permit Application-Updated Surcharge 07-28-11.doc 2 � 2 • t ' Joseph Olson D.B.A. Rusty Olson's--Soil and Percolation Testing Joseph J. Olson--MPCA License#810 11481 Riverview Rd. NE, Hanover, MN 55341 (763) 498-8779 Fax (763) 498-8290 Revised July 29,2012 ORONO COPY Stonewood LLC. 3340 Graham Hill Road Orono, Hennepin County This on-site Sewage Treatment System is designed for a Type l, Five-bedroom home in accordance with the Minnesota Pollution Control Agency Chapter 7080 and local ordinances. The periodically saturated soils were located at 18"-30"(mottled soil). Due to the periodically saturated soils,a pressurized mound system will need to be installed to treat the septic ef�luent. 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. All 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. ORONO COPY Use 7/32 inch perforations on the laterals. The absorption area of the future site does not encroach into the primary site. A 1250 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.The manifold and supply line must have back drainage to the pumping chamber. Keea all heavv equipment off of the proposed treatment areas before,durin�and after construction. The area around both sites must be fenced off bv the contractor before anv construction be�ins. 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.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, . ........__.,.... . ... ORONO COPY �Ty OF ORONO ,� Joseph J.Olson sFrrcc �uvur IE 1NSPECTOR D T � ERMIT NQ APPROV�D AS 6t18MIT'fED �] APPROVED WITH CORRECiTIfNS 11s NOTiW �� Q NOT APPROHBRCORRECT t RE9UBMt7 � These commertcs aee for yo�r iafcrautiva Ai!wak abs1141a� _.,._BEDROOMS, ��Hq��w� iu fnll compliance Mi►h ati applicable ceptic�ad soaia�{cude. p�� „�+�DL� Itequirements includi�itear�aot rpeciticYlly tated fa iMi�to�MR. ��+�W�YAUQATES THIS D�� 10EEP THiS PLAN SBT ON StTB AT ALL TIM6i i � E _ � ^ � ��r � �� ' � � � _� �� - � � � . � � ,�� O � � �- ` z �i ``� � �.��j f +T � � ep � 4 S � r�•^D� "� �� ,_1 � � . � � � �.�� / �� , � � � � � ;��-�1' � � -� � � —� a .ao�'£� ;,� , � �� , � � �f �9-��`_�� .? ��` it ^ � � Es ��`� � aa� :� � : �._ �a- �� , ,� � / �� `�= � �= � �� } � � �xs� _'' �' i��`� 4� �� '� � -� � � � ,�� s �' �: J�� yii �� G� � �� r�, �. �, �-'�� r� .. � a �e . 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SEPTIC TANK LIQUID VOLUMES Septic tank capacity 3000 gallons(see figure G9) Number of tanks/compartments 0 Effiuent Filter (yes/no) no C-1 Septic Tank Capacity in Gallons Number of Minimum Capacity with Capacity with Bedrooms Capacity Garb.Disp. Disp.and Lift 2 or less 750 1125 1500 3 or 4 1000 1500 2000 5 or 6 1500 2250 3000 7,8 or 9 2000 3000 4000 �. SOILS(Site evaluation dafa) 1. Depth to restricting layer- 1.5 feet 2. Depth of percolation tests= 12 inches 3. Texture loam 4. Soil loading rate(see Figure D-33J 0.60 gPd/ft2 Percolation rate � � MPI 5. %L.2nd Slope 12.0 % D. ROCK LAYER DIMENSIONS 1. Multiply average design flow(A)by 0.83 to obtain required area of roc;k layer:Item A x 0.83= 750 gpd x 0.83 ft/gpd= 630 ft 2. Determine rock layer width =0.83 ft`lgpd x Linear Loading Rate(LLRj(see LLR chart) 0.83 ft�/gpd x 12.(?0 = 10.0 ft LLR Chart Perk Rate LLR <120 MPI <=12 >=120 MPI <=6 3. Length of rock layer=area divided by width= 630.0 ft/ 10.0 feet= 40.0 ft E. ROCK VOLUME 1. Multiply rock area by rock depth to get cubic feet of rock 630.0 X 1.0 ft= 630.0 ft3 2. Divide ft3 by 27 ft3/yd'to get cubic yards 630.0 ft3 / 27 = 23.3 yd3 3. Multiply cubic yards by 1.4 to get weight of rocic in tons; 23.3 yd3 X 1.4 ton/yd3 = 32.7 tons Page 1 of 5 . F. ' ABSORPTION WIDTH Absorption ratio: 2 1. Absorp6on width equals absorption ratio times rock layer width Rockbed#1 2.00 x 10A ft = 20.0 ft J�;�= �.� G. MOUND SLOPE WIDTH 8 LENGTH(Greater than 19'0) 1. Drnmslope absorption width=absorption width minus rock layer width 20.0 feet - 10.0 feet= 10.0 ft 2. Calculate mound size UPSLOPE a.Depth of clean sand at upslope edge of rodc layer=3 feet minus distance to restricting layer(C1) 3.0 ft - 1.5 ft= 1.5 ft b.Mound height at the upslope edge of rock layer=depth of clean sand for separation(G2a) at upslope edge plus depth of rodc layer(1 foot)to depth of cover(1 foot) 1.5 ft+1ft+1 ft= 3.5 ft c.Upslope berm multipiier based on land slope(see figure D-34) Selected bem�multiplier. 2.70 d.Upslope width=berm multiplier(G2c)6mes upslope mound height(G2b): 2.70 x 3.5 ft = 9.5 ft DOWNSLOPE e.Drop in elevation=rock layer width(D2)times percent landslope(C5)/100 10.0 ft x 12.0 °k /100= 1.2 ft f.Downslope mound height=depth of dean sand for slope difference(G2e) at downslope rodc edge plus the mound height at the upslope edge of rodc layer(2b) 1.2 ft + 3.5 ft= 4.7 ft g.Downslope berm multiplier based on percent land slope(see Figure D-34 Selected berm multiplier: 5.56 h.Downslope width=downslope multiplier(G2g)times downslope mound height(G2� 5.56 x 4.7 = 18.0 ft i.Select greater of G1 and G2h as the downslope width 18.0 fi j.Total mound width is the sum of upslope{G2d)width plus rodc layer width(D2)plus downsiope width(G2i) 9.5 ft+ 10.0 ft+ 18.0 ft= 37.5 ft k.Total mound length is the sum of upslope width(G2d)plus rodc layer length(D3)plus upslope width(G2d) 9.5 ft + 40.0 ft+ 9.5 ft= 59.0 ft Final Dimensions (slope>1°�) 37.5 ft x 59.0 ft I hereby cet�ify that all work has been oompleted in accordance with all applicable ordinances,rules&laws. ,,,�',�`'�--"'�� (signature) 810 picense#) 9114l2007 (date) �" . Page 2 of 5 � H. SAND VOLUME 1. Upslope Vo�ume+ Volume under rodcbed+Downslope Volume ocR kbed#1 S�'I L�J a.Upslope Volume:(depth of clean sand+1)x(upslope berm) x(mound length)/2=ft3 2.5 ft x 9.5 ft x 59.0 ft /2 = 700.6 ft3 b.Volume under rodcbed: (average depth of sand under rodc)x(rockbed width)x(mound length)=ft3 2.1 ft x 10.0 ft x 59.0 ft = 1239.0 ft3 c.Downslope Volume: (depth of dean sand+1)x(downslope berm)x(mound length)12=ft3 3.7 ft x 18.0 ft x 59.0 ft / 2 = 1964.7 ft3 Total cubic feet: = 3904.3 ft3 2. Divide ft3 by 27 ft31yd3 to get cubic yards 3904.3 /27 = 144.6 yds3 3. Multiply cubic yards by 1.4 to get weight of sand in tons 144.6 yds3 x 1.4 202.4 tons 4 Add 10%for Construdability 202.4 tons x 1.1= 222.7 tons A-1 Estimated Sewage Flows in GPD No.of Bdrms Class I Class II Class III Class IV 2 300 225 180 60%of 3 450 300 218 the 4 600 375 256 values 5 750 450 294 in the 6 900 525 332 Ciass I, 7 1050 600 370 II or II 8 1200 675 408 columns D-33 Absor tion Width Sizin Table Perc Rate Soil Texture Loading Rate Absorption mpi gpd/sq ft Ratio Coarse sand <5 Loamy sand 1.20 1.00 Med.,Fine sand 6-15 Sand loam 0.79 1.50 16-30 Loam 0.60 2.00 31-45 Silt Loam,Silt 0.50 2.40 46-60 Clay loam,Silty 0.45 2.67 or Sand Cla Loam 61-120 Silty or Sandy Clay or Clay 0.24 5 >120' *Must be other or performance. Page 3 of 5 • � 4"inspection pipe Rockbed#1 .S�"�. �) � � � 12"topsoil 1.5 riginal grade Restrictive layer 1.5 9.5 10.0 18.0 28.0 . — -. absorption width Mound Detail: Land slope> 1% 9.5 Upslope berm: :................._..................................................--•............................................................................................................._..,. Rockbed 9.5 Width: 10.0 9•5 Total Length: 40.0 Width: 37.5 Downslope berm: Downsiope absorption width: 18.0 10.0 Totat tength: 59.0 - - Notes: DiveR surface water away from mound. Page 5 of 5 OiNS�TE rockbed#2 Job# L4 62 SCWA6C �`;��, TREATMENT �'=�---�.=�-_�-- �'��` PROGRRM '.��_` ' � University of Minnesota Mound Design Worksheet Greater than 1%Slopes a F�ow Estimated 75Q gpd(see figure A-i) a�� x 1.5(safety factor)= 0 gpd B. SEPTIC TANK LIQUID VOLUMES Septic tank capaaty 3000 gallons(see figure G1) Number of tanks/compartments � Effluent Filter (yes/no) no C-1 Septic Tank Capacity in Gallons Number of Minimum Capacity with Capacity with Bedrooms Capacity Garb.Disp. Disp.and Lift 2 orless 750 1125 1500 3 or 4 1000 1500 2000 5 or 6 1500 2250 3000 7,8 or 9 2000 3000 4000 C. SOILS(Site evaluation data) 1. Depth to restricting layer- 2.0 feet 2. Depth of percolation tests= 12 inches 3. Texture loam 4. Soil loading rate(see Figure D-33) 0.60 9Pd�ft2 Percolation rate 8 MPI 5. %Land Slope 6.0 % D. ROCK LAYER DIMENSIONS 1. Mul�ply average design flow(A)by 0.83 to obtain required area of rock layer.Item A x 0.83= 750 gpd x 0.83 ft2/gpd= 23 ftZ 2. Determine rock layer width =0.83 ft`/gpd x Linear Loading Rate(LLR)(see LLR chart 0.83 ft/gpd x 12.00_� = 10.0 ft LLR ChaR Perk Rate L-�R <120 MPI <=12 >=12Q MPI <=6 3. Length of rock layer=area divided by width= 23,0 {� / 10.0 feet= 23.0 ft E. ROCK VOLUME 1. Multiply rock area by rock depth to get cubic feet of rock 23.0 X 1.0 ft= 23.0 ft3 2. Divide ft3 by 27 ft3/yd3 to get cubic yards 23.0 ft3 / 27 = 9.0 yd3 3. Multiply cubic yards by 1.4 to get weight of roc:k in tons; g.p yd3 X 1.4 tontyd3 = 12.6 tons Page 1 of 5 ' F. ABSORPTION WIDTH Absorption ratio: � 2 -� 1. Absorption width equals absorption ratio times rock layer width Rockbed#2 2,00 x 10.0 ft = 20.0 ft 5��= �J G. MOUND SLOPE WIDTH 8 LENGTH(�reater than 1�0) 1. Downslope absaption width=absorp6on width minus rock layer width 20.0 feet - 10.0 feet= 10.0 ft 2. Calculate mound size UPSLOPE a.Depth of clean sand at upslope edge of rock layer=3 feet minus distance to restricting�ayer(C1) 3.0 ft - 2.0 ft= 1.0 ft b.Mound height at the upslope edge of rodc layer=depth of dean sand for separation(G2a) at upslope edge plus depth of rock layer(1 foot)to depth of cover(1 foot) 1 ft+1ft+1 ft= 3.0 ft c.Upslope berm multiplier based on land slope(see figure D-34) Selected bemi multiplier: 2•54 d.Upstope width=berm muttiplier(G2c)times upslope mound height(G2b): 2.54 x 3.0 ft = 10.0 ft DOWNSLOPE e.Drop in elevation=rock layer width(D2)times percent landslope(C5)/100 10.0 ft x 6.0 °k I 100= 0.6 ft f.Downslope mound height=depth of dean sand for slope difference(G2e) at downslope rodc edge plus the maind height at the upslope edge of ra�c layer(2b) 0.6 ft + 3.0 ft= 3.6 ft g.Downsfope berm multiplier based on percent land slope(see Figure D-34 _ Selected berm multiplier: 5.26 h.Downslope width=doHmslope multiplier{G2g)times da�rnslope rr�und height(G2� 5.26 x 3.6 = 19.0 ft i.Select greater of G1 and G2h as the downslope width 19.0 ft j.Total mound width is the sum of upslope(G2d)width plus rock layer width(D2)plus downslope width(G2i) 10.0 ft+ 10.0 ft+ 19.0 ft= 39.0 ft k.Total mound length is the sum af upslope width(G2d)plus rodc layer length(D3)plus upslope width(G2d) 10.0 ft + 23.0 ft+ 10.0 ft= 43.0 ft Final Dimensions (slope>1%) 39.0 ft x 43.0 ft I hereby ce�fy that all work has been completed in accordance with all applicable orclinances,rules&laws. ,, __. (signature) 810(license#) 9/14I2007 (date) i �'_ Page 2 of 5 H. SAND VOLUME 1. Upslope Volume+ Volume under rockbed+Downslope Volume Rockbed#2 =��i E D a.Upslope Volume:(depth of clean sand+1)x(upslope berm) x(mound length)/2=ft3 2.0 ft x 10.0 ft x 43.0 ft 12 = 430.0 ft3 b.Volume under rocicbed: (average depth of sand under rock)x(rockbed width)x(mound length)=ft3 1.3 ft x 10.0 ft x 43.0 ft = 559.0 ft3 c.Downslope Volume: (depth of clean sand+1)x(downslope berm)x(mound length)/2=ft3 2.6 ft x 19.0 ft x 43.0 ft / 2 = 1062.1 ft3 Total cubic feet: = 2051.1 ft' 2. Divide ft3 by 27 ft3/yd3 to get cubic yards 2051.1 !27 = 76.0 yds3 3. Multiply cubic yards by 1.4 to get weight of sand in tons 76.0 yds3 X 1.4 106.4 tons 4 Add 10�o for ConsVuctability 106.4 tons x 1.1 = 117.0 tons A-1 Estimated Sewage Flows in GPD No.of BdRns Class I Class II Class III Class IV 2 30p 225 180 60%of 3 450 300 218 the 4 600 375 256 values 5 750 450 294 in the 6 900 525 332 Class I, 7 105Q 600 370 il or II g 1200 675 408 columns D-33 Absorption Width Sizin Tabie Perc Rate So�Texture Loading Rate Absorption mpi gpd/sq ft Ratio Coarse sand <5 Loamy sand 1.20 1.00 Med.,Fine sand 6-15 Sand loam 0.79 1.50 16-30 Loam 0.60 2.00 31-45 Silt Loam,Silt 0.50 2.40 46-60 Clay loam,Silry 0.45 2.67 or Sand Cla Loam 61-120 Silty or Sandy Clay or Clay 0.24 5 >120' "Must be other or rformance. Page 3 of 5 • ' 4"inspection pipe Rockbed#2 S'�jL !J 0 0 0 12"topsoil 1.0 riginal grade Restrictive layer 2.0 10.0 10.0 19.0 29.0 absorption width Mound Detail: Land slope> 1% 10.0 Upslope benn: :.................................................._................... ............................................................................................................_.... Rockbed 10.0 Width: 10.0 10.0 Total Length: 23.0 Width: 39.0 Downsiope berm: Downslope absorption width: 19.0 10.0 Total length:43.0 Notes: Divert surface water away from mound. Page 5 of 5 OSTP Design Summary Worksheet "�' Minnesota Pollution UNIVERSITY ControlAgency OF MINNESOTA , .�,�� Property Owner/Client: Stonewood LLC. site address: 3340 Graham Hill Road (Site E) 1. AVERAGE DESIGN FLOW: A. Design Flow: 750 Gallons Per Ddy(GPD) Note: The estimoted design Jlow is considered a peak jfow rate including o w�ety factor.For long term performance,the average daily flow is recommended to be< B. Septic Tank capacity: 2250 Gallons bo%oj this value. �, Number of Septic Tanks or Compartments: � Eff(uent Screen&Alarm? YeS Type of Soil Treatment and Dispersal Area Type of Distribution Q Trcrxha �Bed Q Mound �Gravity Distribut'an QQ Pressure Distribution-Level � Pressure DistribuYamUnlevel Q At-Grade Q Drip Distribution System Type �Type I ❑Type II ❑Type III []Type IV ❑Type V 2. $ITE EVALUATION: A. Depth to Limiting Layer: 20 inches 1.7 ft B. Measured Percent Land 5lope: 14.0 % 0.0 C. Soil Texture: � LOdm Percolation Rate: �Minutes per Inch D. Soil Hydraulic Loading Rate: 0.60 GPD/ftZ E.Contour Loading Rate 12 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 Bed Design Summary Absorption Area �ftz Media Below Pipe ��in Bed Length �ft Bed Width �ft Maximum Trench Depth �in Mound Design Summary Absorption Area 625 ftz Bed Length 63 ft Bed Width 10.0 ft Absorption Width 20,p ft Clean Sand Lift �,3 ft Upslope Berm Width $,p ft Downslope Berm Width 25,0 ft Endslope Berm Width 14.0 ft Total System Length g� ft Total System Width 43 ft At-Grade Design Summary Absorption Bed Width �ft Absorption Bed Length �ft System Height �ft Absorption Bed Area �ftZ Upslope Berm Width �ft Downsiope Berm Width �ft Endslope Berm Width �ft System Length �fl System Width �ft MinnesotaPoilution OSTP Design Summary Worksheet UNIVERSITY Control Agency OF MINNESOTA �,�, ,�,\� Pressure Distribution Summary No.of Perforated Laterals � Perforation Spacing �ft Perforation Diameter 7/32 in Flow Rate 36 GPM Supply Pipe Diameter�2 in Total Head 14.0 ft 4. ORGANIC LOADING(if pretreatment is being used) Orqanic Loadinq to Pre-Treatment Unit =Design Flow X Estimoted 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 Areo =tbs/day/ftZ �lbs/day= ��ftz= �lbs/day/ft2 Comments/Special Design Considerations: I hereby certify that i have completed this work in accordance with atl appticable ordinances, rules and laws. Joseph J Olson 810 07/29/12 (Designer) (Signature) (License#) (Date) OSTP Mound Design (JNIVERSITY -' Minnesota Pollution Worksheet OF MINNESOTA ��^� Control Agency 1• SYSTEM SIZING: A. Design F(ow(Design Summary 1A): 750 GPD T"ni�i l.10UND CONTOUR lOADiHG R.1TE5: B. Soit Loading Rate (Design Sum.2D): 0.60 GPD/ftZ . Contour r:,c_.asur?d O� Ta:.tur9•derive� Loading aarc R.atn mound ahsorption�acio C. Depth to Limiting Condition: 1.7 ft . R�tp: D. Percent Land Slope (Design Sum. 26): 14.0 ry `f'��„�� -o, �.3. z o. �..�. z<, _;z E. Design Media Loading Rate: 1.2 GPD/ftZ '��-��'mpi ��;n s.o c s z F. Mound Absorption Ratio: 2.0 _ ��u��,�;• .s.o• :e.� G. Design Contour Loading Rate: 12 GPD/ft •Systems with these values are not Type I systems. (From Design Summary 2E-same as Linear Loading Rate) Contour Loading Rate is a recommended value. 2. DISPERSAL MEDIA SIZING A. Catculate Required Dispersv(Bed Areo:Design F(ow (1.A):Design Medin Loading Rate (1.E)=ftZ if a larger dispersal media 750 GPD: 1.2 GPD/ftZ = 625.0 ftZ area is desired, enter size: 630 ftZ B. Calculate Dispersal Bed Width: Contour Loading Rate (1.G):Design Media Loading Rate (1.E)=Bed Width 12 ft = 1.2 gpd/ft2 = 10.0 C. Calculate Dispersal Bed Length: Dispersol Bed Area (2.A)=Bed Width (2.B)=Bed tength 630.0 ftZ = 10.0 tt = 63.0 ft D. Select Dispersa(Media: -� 3. ABSORPTION AREA SIZING Note:Mound setbacks a�e measured from the Absorption Area. A. Calculate Absorption Width: Bed Width (2.6)X Mound Absorption Ratio (1.F)=Absorption Width 10.0 ft X 2.00 = 20.0 ft B. For slopes from 0 to 1%, the Absorption Width is measured from the bed equally in both directions. Calculate Absorption Width Beyond the Bed:Absorption Width (3.A)-Bed Width (2.6)=2= Width beyond Bed ( N/A ft - N/A ft) = N/A = N/A ft C. For slopes>1%, the Absorption Width is measured downhill from the upslope edge of the Bed. Catculate Downs(ope Absorption Width:Absorption Width (3.A) -Bed Width (2.B)=ft 20.0 ft - 10.0 ft = 10.0 ft Comments: S(ope, CLR Choice,Materie(issues 4. MOUND SIZING A. Calculate Cleon Sand Lift: 3 feet minus Depth to Limiting Conditron (1.C)=Clean Sand Lift (1 ft minimum) 3.0 ft - 1.7 ft = 1.3 ft B. Calcutate Upslope Height: Clean Sand Lift (4.A)+media depth (1 ft.)+cover (1 ft.)=Ups(ope Herght 1.3 ft + 1.0 ft + 1.0 ft= 3.3 ft D.3a:)b;v�MuitiDlier TaWr Land$lope`.H (1 � 1 3 4 5 6 7 B 9 10 - �� 12 l3 t4 l; t0 17 i6 i4 20 21 � 22 23 2a 25 � i11pSlnP� 3tl 3.DC 2.51 2.d3 ?.75�1.i8 i.41 '[.5- :.J3 2.�i i35 2 311 Z.?F 2.�1 2.':7 2.'? 2.v9� 2_U5 2.03 2.1k' L57� 1.55 I.ii t.ii ' t89 1.8? 1.85 Beiln ridi!i� a:1 -tAQ 5.35 �.?U 3.5? 3.J5�3.33 313 3J2 ?.u3 Z.94 ?.g5 2.?fi L70 Z.62 2.55 2.4A 2.�tt L?5 2.2v 2.?3 LI? 2.13 2.Q8 2.0's 1.9e L5: , LandSlope � � t 2 i � 4 5 h 7 , A 9 t� �1 !2 13 j ta IS 16 i7 ;8 i0 14 1� 21 23 t4 15 ! �'C^.':(iilC:;;� ?:Ij?.UG ?.Oi >.14�i.iC�;.-lI i.53 i.!�5 i.6C 3.i5 J.11 -1.2)i1Aj�.l.5S14.55�5.tJ 5.55 5.83 E1�1 E.E3I7.0: ?.a? ?.'ti 8.J2 8.9s 7.-ib 1��AZ ! Ew-ni R.a::n �:I =.th� +.'3 1:51d.54j�J6I5.C�U 5.26 5.55 i88 6.15 6.h7 7.t�t 7.69 d.2S 3.92 5.5? IO.N 10.5a 11.67 i2.-2 t3.i9 ?3.99 �.i.82 i5.67 16.5: 17.s� � Setect Ups(ope Berm Multip(ier (based on land slope): 2.41 (figure D-34) D. Calcutate Upslope Berm Width: Multiplier (4.C)X Ups(ope Mound Height (4.6)=Upslope Berm Width 2.41 ft x 3.3 ft = 8.0 ft E. Calculate Drop in Elevation Under Bed: Bed Width (2.6) X Lond 5(ope (1.D): 100=Drop (ft) 10.0 ft X 14.00 % : 100= 1.40 ft F. Calculate Downslope Mound Height: Upslope Height (4.6)+Drop in E(evation (4.E)=Downslope Height 3.3 ft + 1.40 ft = 4.7 ft Select Downsfope Berm Mu(tiplier �' (based on land slope): 5.24 (figure D-34) H. Calculate Downs(ope Berm Width:Multiplier (4.G)X Downslope Height (4.F)=Downslope Berm Width 5.24 x 4.7 tt = 25.0 ft i. Calculate Minimum Berm to Cover Absorption Area:Downslope Absorption Width (3.6 or 3.C)+4 ft. =ft 10.0 ft +�4 ft = 14.0 ft J. Desi,�n Downslope Berm =greater of 4H and 41: 25.0 ft K. Select Ends(ope Berm Multiplier: 3.00 (usually 3.0 or 4.0) L. Calculate Ends(ope Berm (4.K)X Downslope Mound Height (4.F)=Ends(ope Berm Width 3.00 ft x 4.7 ft = 14.0 ft M. Calculate Mound Width: Ups(ope 8e�m Width(4.D)+Bed Width (2.6)+poWnslope Berm Width (4.J)=ft 8.0 ft + 10.0 ft + 25.0 ft = 43.0 ft N. Calculate Mound Length: Endslope Berm �dth (4.L)+Bed tengtfl (2.C)+Ends(ope Berm�dth (4.L)=ft 14.0 ft + 63.0 ft + 14.0 ft = 91.0 ft 5. MOUND DIMENSIONS GREATER THAN 1%SLOPE 0 ----------- - —--------_ �, ,� Upstope (4.D} s.o � ', ; � � , � � � � � C�isper,al Eed: i2.E x 2.�.) ' Endslo e �4.�}, -a `Endslo e 14.L) ,- �' c � 1�4.0 � 63.0 x 10.0 "' ' ;14.0 � � � � � ; � � — v � � , � � U � � � � J � Q � ! � / � Downstope �4.J) 25.0 � � ------------------------------------ —------_ _ Total Mound Lenath (4.N) 91•� 4" inspection pipe 18" cover on top Upstope berm (4.D) Downsto e benn (4.J) 25.0 8.0 12" cover on sides �– --- 16" topsoiO � 1.3 Clean sand (ift (4.A► 1.7 { �� _, :_ . i; , ..., _ _ _ _ Absorption Width �3.A) Note: 20.0 For 0 to 1�o slopes, Absorption Width is measured from the Bedequally in both directions. For stopes >1 a, Absorption Width is measured downhill from the upslope ed�e of the Bed. I hereby certify that I have completed this work in accordance with all applicable ordinances, rules and laws. .-''`� ��_ Joseph J Olson 810 06/16/11 (Designer) (Signature) (License#) (Date) OSTP Pressure Distribution UNIVERSITY � `� Minnesota Pollution Design Worksheet OF MINNESOTA � Control Agency �-�\`" 1. Select Number of Perforated Laterals in system/zone: � Geotextile �6Cgp9p�0'q��p��6�p�0�0'qr°pOC Minimum�q�p0� 0'�(��D (2 feet is minimum and 3 feet is maximum spacing) o�'/`perforations zparnd 3`apart��q 2"of rock�� ti 0��°p��p0 2. Select Perforation Spacing: 3.0 ft o��od��n o� ��n�,o��a�o'�- poO�poCy�o aDodaJo�?�Do�p.�r 9"of rock�DoGV0o0uDo'JsJoOeDo�O�"q�0 3. Setect Perforotion Diameter Size 7/32 inch �� o"�o° o�co�.`,noo°�oo' o; L�b"�'o°��oo'�oo�o oo°'��o° �`-30" Vertorauon sizing:'h"to 41' Perioration s acin :7 to 3' 4. Length of Loterols =Media Bed Length -2 Feet. Perforation cQn not be doser then i foot from edge. 63 - 2ft = 61 ft 5• Determine the Number of Perforation Spaces. Divide the Length of Latero(s (Line 4)by the Perforation Spacing (Line 2)and round down to the nearest whole number. Number of Perforation Spoces = 61 ft .- �ft = 20 Spaces 6. Number of Perforntrons per Latero( is equat to 1.0 plus the Number of Perforation Spntes (Line 5). Perforations Per taterol = 20 Spaces + 1 = 21 Perfs. Per Lateral Check Toble 1 to verify the number of perforations per(aterol guarontees(ess ttwn a 10%dischorge variation. The va(ue is double if the a center manifold is used. 7• Total Number of Perforations equals the Number of Perjorations per Lateral (Line 6)multiplied by the Number of Perforated Laterals (Line 1). 21 Perf. Per Lateral X �Number of Perf. Laterals = 63 Total Number of Perf. 8. Calculate the Square Feet per Perforotion. Recommended va(ue is 4-10 ft Z per perforation. ' P�,,,,,n,,,axn„s�(GPM) Does not appty to At-Grades P�.ro�a�ti«�o;amer�. 'neaa lRl ,�` � ,�. _ ,/. Bed Area = Bed Width (ft)X Bed Length (ft) .- �. 1.0' 0.18 0.41 O.S6 0.76 10 ft x 63 ft = 630 ftZ +_5 a.== o.s, 0.69 a.9 2.0° 0.26 0.59 0.80 1.04 � 2.5 0.29 0.65 0.89 1.17 Squore Foot per Perforotion =Bed Area divided by the Total Number of Perforations (Line 7). '.o °.'z °.'2 °.°e ,.2° 4.0 0.J7 0.83 1.13 1.47 � SA` O.4f 0.93 7.26 1.65 630 ftZ - 63 (��OfdtlOfl$ C �0.� ftZ/perforations ' ,f�, ��4'^�narc13ii6inchperforatianon Cwellings 9. Select Minimum Averoge Head: 1.0 ft ��8��ch petforatlons on dwAlirms and far z(pp( OtRP/P.tdbli5lfTQ�IS t/4 inch ard 3/tn inch pefwatiom on M57S ' S f�[ //8�nch perforations on MSTS ' __ _.. .._ .__ _ .. _...._. __." 10. Select Perforation Discharge (GPM)based on Table III: 0.56 GPM per Perforation 11• Determine required Flow Rate by multiplying the Tota(Number of Perforations (Line 7)by the Perforation Discharge (Line 10). 63 Perforations X 0.56 GPM per Perforation = 36 GPM 12. Select Type of Manifold Connection (End or Center): � End ❑ center OSTP Pressure Distribution - UNIVERSITY ;� � Minnesota Poilution Design Worksheet OF MINNESOTA Control Agency ��- !laxirr:um Number of Perforacio+�s Per�ateraS to Guarantee K IQ�DKCFt.If�•Jariation `_Inch Pe�torarcri; ii32 I-ith PerioraCions Ferforat>on Spacing IFe?t) Pipa C�iame;x ttnches) Pe+faration Spacing Pipe Deameier(tnches? 1 1Ya 1;: 2 3 (�eet) t 14: SY: Z 3 2 10 13 18 34 50 2 tt 16 21 34 68 Zt� 8 t2 16 28 5-1 2": 1U 14 20 32 W 3 8 12 16 25 92 3 9 14 79 30 60 3%16 inch Perrw�a;i�is 1!H Incn Perforetians Ripe Uiameter (I�cFwz1 Perforati•�n Spacing Pipe Qearruter(trtche;) Perforation Spacing(Faet) t 1 x: t ti2 2 "s (Fee21 t f V 1 i� 2 3 2 t 2 18 26 i6 87 2 21 33 -l-1 74 /i9 2t= 12 17 2-e a0 80 2:: 20 30 it 69 135 3 12 t� 22 37 75 3 20 29 38 64 128 Table 11 14. Select Latera(Diameter based on Table I: 2.00 �n Volume of Liquid in 15. Volume of Liquid Per Foot of Distri6ution Piping: 0.170 Galtons/ft �Pe Pipe Liquid 16. Vo(ume of Distribution Piping = Diameter Per Foot _[Number of Perforated Laterals (Line 1)X Length of Laternls (Line 4)X (inches) (Gallons) (Volume of Liquid Per Foot of Distribution Piping(Line 15)] 1 O_045 �3 X 61 ft X 0.170 = � 1.25 0.078 gal/ft 31.1 Gallons 1.5 0.110 17. Minimum Dose=Volume of Distribution Piping(Line 17)X 5 2 0.170 3 0.380 31.1 gals X 5 = 155.55 Galtons 4 0.661 _-Cieanouu ' - -'- mani o pipe, , ' .' � � Manifold pipe, i ' � pipe from pump , �� r lean outs � Altemate location � of pipe irom pump � �• altemate location P� e from um of i e from um I hereby certify that I have completed this work in accordance with atl applicable ordinances, rutes and laws. Joseph J Olson 810 06/16/11 (Designer) � (Signature) (License#) (Date) Loqs of Soil Borinqs License #810 Location or Project: 3340 Graham Hill Road Borings made by: Rusty Olson's Soil and Perc testing 9/10/07-6/09/11 Classification System: AASHO ; USDS•USDS-SCS X ; Unified ; Other Auger used {check two): Hand_X_, or Power , Flight, Bucket or Probe_X_ Boring Number_1A_Surface elevation_978.6_ Mottled Soil at_2.5_feet 0"-30" Dark brown loam 10yr3/2 H20 present at_X_ 30"-36" Rusty dark brown loam 2.5y4/2 36"-42" Rusty olive brown clay loam 2.5y5/4 Boring Number_ZA_Surface elevation_980.6_ Mottled Soil at_1.5_feet 0"-12" Dark brown loam 10yr3/2 H20 present at_X_ 12"-18" Brown loam 10yr4/4 18"-30" Rusty brown loam 10yr5/4 Boring Number_3A_SurFace Elevation_985.8 Mottled Soil at_1.7 feet 0"-10" Dark brown loam 10yr3/2 H20 present at_X_ 10"-20" Brown loam 10yr4/4 20"-30" Rusty brown loam 10yr5/4 Boring Number 4A_ Surface elevation_985.8_ Mottled Soil at_2.5_feet 0"-24" Dark brown loam 10yr3/2 H20 present at_X_ 24"-30" Brown loam 10yr4/4 30"-36" Rusty brown loam 10yr4/4 Boring Number 5A_Surface elevation_980.6_ Mottled Soil at_2.2_feet 0-18" Dark brown loam 10yr3/2 H20 present at_X_ 18"-24" Brown loam 10yr4/4 24"-28" Brown loam 10yr5/4 28"-36" Rusty brown foam 10yr5/4 Boring Number 6A_Surface elevation_982.8_ Mottled Soil at_2.1_feet 0-12" Dark brown loam 10yr3/2 H20 present at_X 12"-18" Brown loam 10yr4/4 18"-26" Brown loam 10yr5/4 26"-36" Rusty brown loam 10yr5/4 Percolation Test Data Sheet Lic.#810 Percolating test readings made by: Rusty Olson's Perc. starting at 10:45 A.M. On 9/11/07 Location: Lot 4 Bfock 2 Hole number: 1A Date hole was prepared: 9/10/07 Depth of hole bottom_12",inches, Diameter of hole_6"_inches. Soil data from test hole: Depth, inches Soil texture 0-12" Dark brown loam 10yr3/2 Method of scratching side wall: Knife Depth of gravel in bottom of hole 2 inches: Date and hour of initial water filling 09/10/2007 At 11:00 A.M. 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 H20 Perc Rate 10:55 11:25 6" 5.5 5.4 11:34 12:04 6" 5.5 5.4 12:05 12:35 6" 5.5 5.4 AVERAGE PERC. RATE 5.4 MPI , • `I J ��' � � i� , i�I . _- .. _-_�---__... _ IJ -_� , ._.----=--- I r� z3 ��;�.� •t �.._-,-. --�.__� � '._.'_..".�....- r.� 1:J ��. .�-• .�<� c�1 ' " J � .___ __—_�_ � . ..._._._.�-- � , ,, �i;i 7•7�: � I .1. ._...._,.�_- . ' , . . -�----_ , . ; a.` . ` 1(..1. __._____ . ::;.- ��. � .. � ____--- - ... ,` . .•;� _.._.....-- —' .��.y. _ . _�-^-�-�—"' _.r' ��G:7• 4� �\�� .:1` r `�\�\ �" !7�..:`..,,� � \ ,�gA ;% � I; ` � � s,. . ,� l� ) - �t,�•;6� c_�. � 1�;1� � i --. '.� 1� , .; - � . ,�� •.,L ._ - - _ �`' ,. - \ �-..f�,�• ._._�_._._.___ �:: .` 1 �`'._ - ��', n,,;/ � ,� .� G�� ..�� -�,� '� ,a �_ � � ;� . (� � ;. ., �: � �-� .,�� •. �•. ,\ � � . � � � .�, ' � \ �"�(, ��`��. �'��, f ,,� ,�, � ,,\ �.--'" �f � � ' �� .. , � � � � � ,11� •`� ' � �,�. �1�r�1t.i��:, , � �� -'�. �'. .� `. i � � � \ � _ �� - ...,. ^ ,_" I�' , . , �-. .�. . . .�... \ � �l � .' v-, f" `. �' l- � '�..-v' �b''� "'\ - � �� " f��'�` �� ,._..,' 7,', � _ \� `� �' � ,�, ..,` - ,.1.-_ �� _f` �I �`�` '`-v. �,� ,.. _..,�,.,�,. ..��r�.,,, �' \ ��'�`, � � -,J � '�•-„---•�. `1 _ - ��c it;c��, i � 1� `��•� i; ., � � �, ;k�Vit: ., . � �\ I �•...L;_l�.?�._);:a. I' ,�,.•..,- `..� ! ry � � , � Ll.[�VG�T.�uN` U�' 1 ; � --- x� , , TI��= i�'nlr=•, iRov�ni�.i:•, i:;'r l�Rn�v_,�t�. nvn i�ssc�r'�;,rr:.�; /��_l ( , ...�� L� + '- `�� ' ' ;, — � SCdle: _ - ,SJ -..'"�"" / f � Percolat�on Test I __ �"� � � �--- Q Soil Boring '�i,; � Bcnch Mark + Check a11 underground utilities � � �� r��;►•ty Df: SfiuNGv.�rz_>r:� 1 LG� ' r /'� ^::�-!r),��,a��in v� �l.t.h:c.?,,;� �, a�N��_��,V,tJG-.y�i.t> !�c.��,�J7'r'._._� �``''``° 17sito�1,�.2J.�1_J�'1't(7G3)��9�-8%79 �I�u,sry 01sc�i�'s sa�J a.nc1 pcCCal1tiOf1lCSllt1�; : ^ I)csi�;ncd t»;i.'�'`�'-""':'".�_.y------.. lr� Percolation Test Data Sheet Lic.#810 Percolating test readings made by: Rusty Olson's Perc. starting at 10:45 A.M. On 9/11/07 Location: Lot 4 Block 2 Hole number: 2A Date hote was prepared: 9/10/07 Depth of hole bottom_12"_inches, Diameter of hole_6"_inches. Soil data from test hole: Depth, inches Soil texture 0-12" Dark brown loam 10yr312 Method of scratching side wall: Knife Depth of gravel in bottom of hole 2 inches: Date and hour of initial water filling 09/10/2007 At 11:00 A.M. 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 H20 Perc Rate 10:56 11:26 6" 4.3 7.0 11:33 12:03 6" 42 7.1 12_06 12:36 6" 4.1 7.3 AVERAGE PERC. RATE 7.1 MPI Percolation Test Data Sheet Lic.#810 Percolating test readings made by: Rusty Olson's Perc. starting at 1Q:17 A.M. On 6/10/11 Location: 3340 Graham Hill Road Hole number: 3A Date hole was prepared: 6/09/11 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 initiai water filling 6/09/11 depth of initial water filling 12 inches above the hole bottom Method used to maintain at least 12 inches of water depth in hole for at least 4 hours Automatic Siphon Maximum water depth above hole bottom during tests 6 inches Time Time Depth Drop in H20 Perc Rate 10:27 10:57 6" 5.0 6.0 11:00 11:30 6" 4.8 6.2 11:31 12:0# 6" 4.7 6.4 AVERAGE PERC. RATE 6.2 MPI Percolation Test Data Sheet Lic.#810 Percolating test readings made by: Rusty Olson's Perc. starting at 10:17 A.M. On 6/10/11 Locatian: 3340 Graham Hill Road Hole number: 4A Date hole was prepared: 6/09/11 Depth of hole bottom_12"_inches, Diameter of hole_6"_ inches. Soil data from test hole: Depth, inches Soil te�ure 0-12" Dark brown loam 10yr3/2 Method of scratching side wall: Knife Depth of gravel in bottom of hole 2 inches: Date of initial water filling 6/09/11 depth of initial water filling 12 inches above the hofe 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 H20 Perc Rate 10:28 10:58 6" 5.5 5.4 10:59 11:29 6" 5.5 5.4 11:32 12:Q2 6" 5.5 5.4 AVERAGE PERC. RATE 5.4 MPI