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Home My WebLink About2008-00070 - new septic - CITY OF ORONO PERMIT NO.: 2oos-000�o � � 2750 KELLEY PARKWAY ORONO, MN 55356- DATE IssuEn: 08/04/2008 (952) 249-4600 FAX: (952) 249-4616 AllDRESS : 710 BIG ISLAND PIN : 22-117-23-24-0009 LEGAL DESC : RECREATION POINT LAKE MTKA : LOT 000 BLOCK 000 PERMIT TYPE : SEPTIC PROPERTY TYPE : RESIDENT[AL CONSTRUCTION TYPE : NEW NOTE: INSTALLING(2)FIBERGLASS TANKS-(1) 1500 AND(1)1000 APPLICANT SEPTIC NEW 100.00 HAGEBERG EXCAVATING STATE SURCHARGE SEPTIC 0.50 34497 NACRE STREET NW TOTAL 100.50 PRINCETON, MN (763)286-4611 Minnesota State License#: 2637 OWNER Palm Properties LLC LLC, PALM PROPERTIES 5034 BRUCE PL EDINA, MN 55424- AGREEMENT AND SWORN STATEMENT The work for which this permit is issued shall be performed according to the approved plans and specifications,applicable Ciry 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 da[e 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 rev ed at any time for due cause. � / / � � "-�-.�� L��l.�� d d App cant Perm e ignature Date Issued By Signature Date SEPARATE PERMITS REQUIRED FOR WORK OTHER THAN DESCRIBED ABOVE. � ¢0� City of Orono FOR CITY USE ONLY � Q � P.O.Box 66 r r ", ' !'}�.,> , .�cL�' ._ 7�- � �, 2750 Kelley Parkway Date Received: J f%/ C�' Permit# ' � q��;��- � Crystal Bay MN 55323 � �� f�,��w��.�o` (952)249-4600 Amount: � � �-y�� y�xo4 CITY OF ORONO – SEPTIC SYSTEM PERMIT APPLICATION (All permits must be approved by the On-Site Septic Manager and/or Building Official) ! Job Site I Owner Infiormation:;r�� .. �' � �s, -- � — SiteAddress: ��1� ��, '(,,�� , N� � Ownpr: �� '�l� Mailing Address -��a' '��.� � ) c�ty: ( �O z�p: �� c�� i°� -c�'U� - H�rfe Phone: � Alternate Phone: �� Contracto =Applicant Inf :��`""� �-, � �LL;� ��'�'�11�7�1 � Contractor/App.:_�/��,�,,1'�'� Contact Person: � - Address ��1� ��,� � State License #: � �� City: '�l Zip: ��7 Expiration Date: � �(�' Phone: l 1�� C��J" `-�� Alternate Phone: ` , , � ; ,z�,s � ,m� � �, �.x�.� ... �R;E'� O�' �C�P14NC , � "r�� `� ,. � � � , Y , � . �: ,... . ... «. �, �.� , , � ,�_.. ,�,�� . , ,� . .�, ��'��.�:,, esidential ❑ Commercial ❑ Other ry ,��;�� k,�j�� >�r��, aa��.�� :;..� ' PERMI�":TYPE AND FEES � New r Replacement System $100.00 f�:1�, � �-' Repair Existing System 50.00 �— (Tanks or Drainfield) State Surcharge .50 .50 Total � V:\(Permits)\Septic System Permit Application.doc 1 / 2 � ** ATTENTION APPLICANT ** —' i _ Fill in all a��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: �jiJ� (�(J(J Treatment System � � Trenches �- s.f. ��"� , � ��(�ti'.X�� Mound s.f. Gravel less s.f. _� Chamber s.f. Final Cover/ Top Soil � to be borrowed from site (show location on site plan) trucked in 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, true an correct. I � Signature of Applicant �l lV\�1C�— Date: � ��J l� MPCA License No.: � 3"� �, ,.,�� '!�-i��J� Staff Review: Accept ❑ Denied Reviewer: �� y� �ate: '�'�.�— 6 � Reason for Denial: Comments (to be printed on inspection card): V:\(Permits)\Septic System Permit Application.doc 2 � 2 , � � � . � � � � ��C�� - �c:��t� � Pt�orrE: 763-633-2222 F.a�: 763-633-2224 Mi11eP Env1I'Orimental IriC. 11040 183rd Circle N.W.,Suite AA •Elk River,MN 55330 i � Plans and Specifications for � ONSITE WASTEWATER SYSTEM 1 710 Big Island ' City of Orono ' PREPARED FOR: f Mike Palm 2311 Wayzata Boulevard ' Minneapolis, Minnesota 55405 ' , May 3, 2007 , � ' ��+r o�o�oNov ��` � OF�EQRI«� 1�11�N��r�� F�RbiIT xa,,.�.,,,_„_.....,. , I��iM��'r�S1Gl� ��aar�o APPROVEU W17'NC�DRRECTION'�/1t NOT6a �' s�sus�ir , ��. 111J{work shall bc donc ��1�pw��1��/UCiW�apd zoning cudc. ��1�.AlY��i.�d�ATfAcallynotcd:� i!,;, , , r , . ' � ONSITE WASTEWATER SYSTEM DESIGN , TABLE OF CONTENTS PAGE# ' A. Legal Description 1 ' B. Site Conditions 1 C. Soil Conditions 1 , D. Selection and Sizing of Treatment System 1 E. Description o Treatment Process 2 , F. Description of Treatment System 2 ' G. Maintenance and Monitoring Requirements 3 H. Disclaimer 3 � List of Figures ' 1. Vicinity Site Plan 2. OWS Location ' List of Appendices A. Design Sheets and Manufacturer Details ' B. Maintenance and Monitoring Plan C. Mitigation Plan ' D. Soil Information E. Partial Matenals List � y��n+.� f+�� ' , k � a. :(��. ' ��t�,i -�`I �¢, :w: . ,� �.r,��eeR��e 5�;+,� �Ar ..._=h.,�.�, . ��,,,�Ti:1i�t;#�.r„�.,.w...,..w+�" x �(,g 'A p3TTNi.Ir��a�#1��5#�6�fA „ ��a a•.Y•: ' p;j�t�1 it/►It'I�Kei�7�NAt)')/lSt�l+�i�i'ii�'•+"'!,A �;.,�.,•1 ;R��9t��Y'.�t1N1'?•GailFlaf�*l��A �„�� ,�e . ,:� AiN�11� ��_y^.� "^,^'S�y�r�SS'.q::.�ll�`?�_`ilr,a .. . . . - .�,��dN��"►�'7��lA��i.{�9��.4�� ' l , ' ' ' � PxorrE: 763-633-2222 Fnx: 763-633-2224 Miller Environmental Inc. 11040 183rd Circle N.W.,Suite AA• Elk River,MN 55330 ' ' May 3, 2007 Mike Palm � 2311 Wayzata Boulevard Minneapolis, Minnesota 55405 ' Subject: Onsite Wastewater System (OWS) Design A. Legal Description ' 710 Big Island; Lake Minnetonka; City of Orono; Hennepin County ' B. Site Conditions The property is located on an island of Lake Minnetonka. From the lake the property slopes up a � 10%— 12% incline with mature maple and oak trees. C. Soil Conditions , The Hennepin County soil survey mapped the area as the Lester Series. The Lester Series is the Minnesota state soil and is very common in Des Moines Lobe glacial till deposits of central � Minnesota, specifically Wright and Hennepin Counties. A copy of the description for the Lester Series is included in Appendix D. The soil survey indicates � the soils in the Lester Series are very deep, well drained loamy soils formed in glacial till. Eight soil borings were completed in the general area of the proposed and alternate drain field areas, see Fig. 1. � The results of the soil borings indicate that the potential for seasonal saturation exists at 24" - 32" below the surface in the area investigated. This is evidenced by the presence of distinct � redoximorphic features. Redoximorphic features in a higher landscape position such as this are likely the result of a stalled wetting front within the fine texture soils and will likely only occur sporadically; however the srte cannot support a standard subsurface drain field without achieving ' additional vertical separation distance reductions prior to dispersal. Percolation tests previously completed indicates the underlying soil has an average percolation rate of 28.2 minutes per inch. ' D. Selection and Sizing of Treatment System The proposed residence is a three bedroom, Type II single family dwelling with an estimated daily , flow from the residence of 300 gallons per day. A mound system design had previously been completed near the proposed drain field. New soil borings completed indicates that the location of r1 � ' , the proposed primary and alternate drain fields have a greater depth to redoximorphic features, � allowing for a shallow subsurface drain field. To allow for the shallow subsurface drain field with a vertical separation distance of 1 foot from the , bottom of the drain field trenches to redoximorphic features, peat filters with a 2 foot depth will need to be installed to pre-treat the effluent prior to drain field dispersal. This type of system is ' commonly referred to as a "2 + 1" and is allowed in Minnesota Rules Chapter 7080 as an Other System. E. Descriution of Treatment Process ! • Primary Treatment - Sewage is gravity discharged from the house to a septic tank. Natural � biological activities taking place inside of the septic tank will separate solids and suspended particles. Solids are reduced to some extent through this process. • Secondary Treatment— Effluent from the septic tank gravity flows into the pumping chamber. A ' Biotube� Pump Package pumps filtered effluent to a distribution manifold in the Puraflo Peat Biofilter on a timed basis. Effluent percolates down through the peat media and drains out the ' bottom of the filter pod. The treated effluent flows out of the filter pod to the drain field. Anticipated treatment levels are expected to exceed a 90% reduction of BOD, TSS, total coliforms, and pathogens. � • Final Treatment — Effluent is directed to a new 486 square foot drain field. As the effluent trickles down into the soil biochemical processes remove the few remaining viruses and bacteria. ' F. Description of Treatment Svstem (See figures, design sheets, and manufacturer sheets for additional detail.) � • Septic Tank — (2) 1,000 gallon fiberglass septic tanks. Second tank is a combination 1,000 gallon septic and 500 gallon pump chamber. Install septic tank per manufacturer's � recommendations. • Pump Tank — 500 gallon second compartment of a 1,500 gallon two compartment fiberglass � septic tank. The outlet of the tank will be sealed as the effluent will leave the tank through the riser wall. Install septic tank per manufacturer's recommendations. • Se tic Tank Risers — 24" diameter heavy corrugated PVC pipe. A watertight seal must be ' P created between top of tank and the each riser. • Se tic Tank Riser Cover — 24" diameter fiber lass cover with asket. Tank riser covers should ' P g g include insulation. Do not bury riser cover. , • Pump — Orenco Systems, Inc. Biotube pump vault package with MVP control panel. Effluent pump to be selected to deliver a minimum of 20 gallons per minute with 20 feet of head. Pump ' package includes effluent filter, pump, floats external splice box, and control panel. 2 , , � � , � • Peat Filer— (2) Puraflo Peat Biofilter pods. Install according to manufacturer's detail. • Drain Field — Excavate the drain field trenches as depicted on Figure 2 when the soil is less than � the plastic limit to prevent smearing and compacting. Installer is responsible for determining if the soil is below the plastic limit prior to excavation. Depth of excavation shall be to the elevations given on Figure 2, scarified and leveled. Place Quick4 High Capacity Infiltrator� Gravelless � Chambers in the trench bottom connected by gravity drop boxes. • Grading - Back fill with native soil, seed for cover, and mulch for erosion control ASAP after , installation. Create positive drainage away from the septic tank and drain field, allow for soil settling. Do not allow channeled runoff over the drain field; create drainage swales along the outer � edges of the drain field to prevent excess runoff on the drain field. G. Maintenance and Monitoring Requirements , The owners of the system must be aware that site constraints have prompted the installation of an Other System. State and Local codes require Other Systems to have maintenance and monitoring 1 agreements and mitigation plans to be in effect for the life of the system (see Appendix B and C for the Maintenance and Monitoring Plan, and Mitigation Plan for details). The owner will need to contract with a licensed service provider to provide the maintenance and monitoring of the system � H. Limitations � Our investigation, layout, design, and recommendations are based on data submitted. If conditions considerably different from those described in this report are encountered, we must be notified. If proposed construction is changed, we must be notified to evaluate the effect of the changes on the ' wastewater system. Any changes to the design must be approved by the designer and will be assessed additional design costs. If changes are made to the design without the knowledge and approval of the designer the design shall be void. All construction is to be in accordance with the � ISTS regulations. Pipe type and size, installation requirements, septic tank construction, and other specifications not depicted in our report are to conform to ISTS regulations. The installer of the system is to be licensed by the Minnesota Pollution Control Agency. ' I certify that this plan, document or report was prepared by me or under my direct supervision and that I am a duly licensed Professional Soil Scientist and Designer 1 under the laws of the State of Minnesota. ' If you have questions, please feel free to call. ' Sincerely, n ` �. � , , Peter G. Miller, P.S.S. Designer I MPCA Certification #2262 ' , 3 ' , Drawing Courtesy of: SCALE Egan, Field, & Nowak, Inc. 1 " = 50' ' • 710 Big Island � � - - TYw locatbn of existlnp nnd proposed M�proven¢nts shown hvrcln und the �wll und/or draln fkld locntbns stakvd nt ihe slta nre rat ihv r�wlt of u property s�rvey. IrQrovenent locotlons nrQ ��%_----�-�� opproxlnnie, It Is tlx prop omer's rvsponslbiUty to defNx ��' -� property 6oundnrles nnd ensv�e nll onslte hproveixnts nre � / i \ \\� lxnted vkhh the plutted slte und out of innpproprinte easenents, /�i f� '��`�,�� All seporotlon dstunces nrc to be veriFkd prbr to excnvutbn. � Q l�ll,� `�� .�� . O �/,i .. �'�,�:_`��. l� l i f '��. _ ��'� �`�,\�� OF LAKE MINNETONKA ' ? i/;' ' 2 . �.\ SHORE ___ __——.-_____�- _-"'r�� Y //( J \ '\\�� —_=-=`—` � — — Q iii� j \-. __'_ __—- � � %/�' Q ` � � _ � ' 1 N � %/i�� o ��-,• � 929.4 CONTOUR LINE � �/�� N (ORDINARY HIGH WATER) i!- rn � �� 'i Three BedrooM i�; i�� Type II Seasonal Residence 75 FOOT BUILDING i `j SETBACK LINE ' //l, " ._ i/ � � � • �Li; _ �_ � _� �/-. �_ - __ � �/, �., ._ - ' /� 's -��`/_ 'l,•;�� _ il� , - �:� �l � � ' I', ',._. ��j f• ❑ld Elevated Water Tank � 1 .� � ; lIt %. .� I : . . -c,.,. i : � '� % Old Foundation with � ' ' i/{� ' ``� Dee Well $lope iF ; .�\ p ' 12%____3 -- �� .. ` � ,,` ,. ; 5 \ � �4 �� , C ` � ' S, 13)�, � � j �\�: r ;' ��'F ��`� \ 1 ;� � :. R . � " 1 �r ..,..� �� 1 �' 6 , , } : (NpK,�,ycNF OF ..``, � ;; 1 1 - � , q�.��o�� + ' � 8 1 j n , PriMary draln fleld area� � �,io' mr� 156 lf x 3 ft = 468 sf � I S ��'��-------� � �� 2% Slope Alternate draln fleld area� (qr RNF 136 lf x 3 ft = 408 sf �w �q oF�o ��Z• Cq�o)r y _.__ - _______ Surface Drainage Dlrection � Soil Boring , � BenchMark Top of Iron AssuMed Elevation 100,0 � Vicinity Site Plan ' Job #7011 Figure 1 ' — ------ -- ----- ------� , r � � . ' -- SCALE _ 7" = 20' � Proposed 1,000 gallon Fiberglass / Septic Tanks with PVC Risers nnd _ //fj/__ bolt down insulated llds ' Sewer Cleanout -_ invert -90,22 -- , _ - Proposed 1,500 gallon Flberglass �- g.A Septic Tank with PVC Risers and .� VC \ bolt down Insulated lids, 1,000 � 1 gallon septic and 500 gallon puMp C n " `� " �91,11) chaMber, Orenco SysteMs, Inc. � �92'22� C91,57) '� Blotube puMp vault package with with MVP control panel for tlMe dosing, , � � � � /Burled Spot Elevatlon ' ✓� Electrlc c Exisitng Grade Line (typ.) V (93.27) Trench #3� (6) Quick4 N high cap, char�bers south � � � & C9) north end BottoM elev. = 91.77 a ` � Flnlshed grade - 93.77 N (94.45) \ � Construct 2 foot High <96.49) �� ' retnining wall `� 4' PVC Underdralns � � Invert elev, 97,52 � � , drop box C96,4) C90.82) Six Inch rock pad, Invert 7' x 17' level, 96.53 Excavate to 97.02 drop box Top of rock 97.52 O Ct ) ��.. �� PP trench YP� , Invert � �. 96,36 �` saMpUng char�ber � ��` C98.02) ��. Benchroark C100,0)' ' Top of Iron <93,27) ' C99,02) (2) Puraflo Peat Biofilter Pods with C94,45) senled bottor� `�� C96.4) Top of Pod 100,02 2' suppiy�l(\s , � _.,, Trench #2� C9) Quick4 hlgh cap, Trench #L C9) Qulck4 high� ,_ chaMbers south & C6) north end cap, chaMbers BottoM elev, = 92.95 BottoM elev, = 95,4 . Finished grade = 94,95 � Finished grade = 97,4 ob # 7011 ❑WS Location Figure 2 ' — — -- -- , ' RRETR�ATMENT WORK SHEET A•1 Estimated Sewage Flows in GPD 1. FLOW Bedrooms Class I Class il Class III Class IV A. Estimated 300 gpd(see figure A-1) 2 300 225 180 60%of � measured x 1.5(safet factor= 0 gpd 3 450 300 218 the B. SEPTIC TANK CAPACITY 2,000 gallons(see figure C-1) 4 600 375 256 values a �5u 4ou �y4 in cne 1 2. SOILS(Site evaluation data) 6 900 525 332 Class I, C. Depth to restrictin la er= 24"-35" feet 7 1050 600 370 II or II D. Texture LoamlCla Loam Percolation rate 28.2 MPI 8 1200 675 408 columns E. SSF 1.67 ftZlgpd(see downsizing or<3ff figure) � F. Land Slope 10 to 12 % C-1 Se tic Tank Ca aci in Gallons Number of Minimum Capacity with Capacity with 3. Pressure Distribution Trench Bottom Area Bedrooms Ca acit Garb.Disp. Disp.and Lift H. For trenches with 6"of rock below the pipe,Area=Flow(1A)divided by SSF(2E)= 2 or less 750 1125 1500 ' 300 gpd x 1.67 ft2lgpd= 501.0 ft2 3 or 4 1000 1500 2000 I. For trenches with 12"of rock below the pipe,Area=Flow(1A)divided by SSF(2E)x 0.8 5 or 6 1500 2250 3000 300 gpd x 1.67 ftZlgpd x 0.8 = 400.8 ft2 7,8 or 9 2000 3000 4000 � 4. ORGANIC LOADING(if pretreatment is being used) J. 1. Organic loading=flow(A)x estimated BOD in mglL leaving the Downsizing Chart with 3 ft of Separation pretreatment unit x 8.35 I 1,000,000 Soil Characterisitcs,SSF 8 Or anic Loadin � 300 gpd x 10 mglL x 8.35 I 1,000,000= 0.02505 Ibs BOD Perc Rate Soil Tecture SSF Organic Ld 2. System loading=organic loadin J1 I area(H or I) mpi s ft/ d Ibslda Ift 0.02505 Ibs BOD I 401.0 ft2 = 6E-05 <0.1 Coarse sand 0.83 0.0020 , 3. Check system loading rate on chart. Should be less than value. 0.1-5 Medium sand 0.83 0.0015 Loam sand 5. ROCK VOLUME 0.1-5 Fine sand 0.83 0.0012 K. Rock depth below distribution pipe plus 0.5 foot times bottom area: 6-15 Sand loam 0.83 0.0011 � _(Rock depth+0.5 foot x Area(H,or I) - 16-30 Loam 0.83 0.0010 (�ft+0.5 ft)x � ftZ 0 ft3 31-45 Silt loam,silt 1.00 0.0007 L. Volume in cubic yards=volume in cubic feet divided by 27 46-60 Clay loam, 1.10 0.0006 K I 27=cubic yards 0 I 27= 0 yd3 sandy clay , M. Weight of rock in tons=cubic yards times 1.4 or silt cla L x 1.4=tons 0 x 1.4= 0 tons 61 -120 Clay,sandy 2.50 0.0005 . or silt cla , 6. SYSTEM LENGTH >120 Cla 3.25 0.0003 N. Select width= �3 ft 0. Divide bottom area b width: H,I)divided by N=lineal feet Sizing Chart with<3 ft of Separation 401.0 ftZ I 3 ft = 134 lineal feet Soil Characterisitcs 8 SSF ' Perc Rate Soil Tecture SSF an oam 7. SYSTEM LlR 16-30 Loam 1.67 P, Draw a line downhill though soil treatment system drawn in layout. 31-45 Silt loam,silt 2.00 � How many trenches does it cross? Add their widths together. 46-60 Clay loam, 2.20 width 1 +width 2+width 3+...... sandy clay �3 ft + �3 ft + 03 ft + ft = 9 ft or silt cla Q. Divide total trench width(P)by SSF(F)=gallons per foot 61-120 Clay,sandy 4.00 � 9 ft I 1.67 ft2lgpd = 5.4 gallft(Should be<12 gallons per loot) or silt cla >120 Cla 5 ' , ' � Page 1 of 1 ' DOSING CHAMBER SIZING with a Timer ' , 1. Determine area t Width A. Rectangle area=L x W � 0 ft x Oft = 0 ft� a � � Length B. Circle area=3.14 x radius2 3.14 x 2(t = 0.0 ft� � C. Get area from manufacturer ft Radiu 2. Calculate gallons per inch There are 7.5 gallons per cubic foot of volume,therefore multiply the area(1A,B or C) times the conversion factor and divide by 12 inches per foot to calculate gallon per inch. � Surface area x 7.5/12= f� x 7.5 I 12inlft = 8.1 gallon per inch Leg21 Tank: 500 gallons or 3. Calculate recommended capacity=average design flow(see chart A-1) x 2 100%the daily flow ' 300 gpd x 2 = 600 gal or Alternating Pumps 4. Calculate total tank volume A. Depth from bottom of inlet pipe to tank bottom = 64 in A-1 Estimated Sewage Flows in GPD � B. Total tank volume=depth from bottom of inlet pipe to tank bottom(4A)x gallin(2) Number of = 64 in x 8.1 gallin = 518.4 gallons Bedrooms Class I Class II Class III Class IV 00 5. Calculate gallons to cover pump(with 2-3 inches of water covering pump) 3 450 300 218 the � (Pump and block hei ht+2 inches)x gallon per inch(2) 4 600 375 256 values ( 16 + 2 in) x 8.1 gal/in = 145.8 gallons 5 750 450 294 in the ti yuu 5zo 3s� uass i, 6. Calculate total usable tank volume 7 1050 600 370 II or II � total tank volume in gallons(4)-gallons to cover pump(5) 8 1200 675 408 columns 518.4 gal - 145.8 gal = 372.6 gal 7. Calculate total pumpout volume � A. Select pump size for 4-5 doses per day. Gallon per dose=gpd(see Figure A-1)l doses per day= 300 gpd / 12 doseslday = 25 gallons B. Calculate drainback E•20 Volume of Li uid in Pi e 1. Determine total pipe length 120.0 ft Pipe Diameter Liquid per foot , 2. Determine liquid volume of pipe, 0.17 gal/ft(see figure E-20) inches ailons 3. Drainback quantity= 120 ft(7B1) x 0.17 gal/ft(762) 20.4 gallons 1 0.045 C. Total pump out volume=dose volume(7A)+drainback(763) 1.25 0.078 25 gallons+ 20.4 gallons= 45.4 gallons 1.5 0.11 ' 2 0.17 8. Pump Rate 2.5 0.25 From design 20 gpm 3 0.38 or calculated: 4 0.66 � chan�th(in)x gallon per inch(2)/time interval in�pm 4 in x 8.1 gallin / 60 min = 0.5 gpm � 9. Calculate the timer ON setting r�:�, `=`-R------==--� Dose gallons(7C)/gpm(8) ' ��< <[�� ,+ � � 45.4 gal ! 20.0 gpm = 2.3 minutes ON � -- _ > • i"rr,r.,,. v ma� �ur�i. 10. Calculate the timer OFF setting ,!�,rr��",�� r -.� , � minutes per day/doses per day-minutes on �<< `.is�,,�,:��'��'<<i„�,j.�.; :� 1440 / 12 doses/day-min on(9) 117.7 minutes OFF � ' 1 � Page 1 of 1 ' � � � � � Maintenance & Monitorin Plan g � 710 Big Island, City of Orono; Hennepin County, MN Svstem Description: � System is designed for a three bedroom, Type II home or 300 gallons per day. The system will consist of 2,000 gallons septic tank capacity, a 500 gallon pumping chamber, two Puraflo Peat Biolfilter units, and a 468 square foot drain field with 39 Quick4 � Infiltrator High Capacity chambers. Operation Description: � Septic tank effluent will be discharged out of the pumping chamber through an Orenco Systems, Inc. Biotube Pump Vault with a modified well pump to the peat filters. A control panel will dose the filter on a timed basis via a lateral network, distributing the ' septic tank effluent evenly over the filter where 80-90% of necessary treatment will take place. An under drain in the peat filters will drain the filter effluent to the drain field. A gravity fed drop box system will distribute the filter effluent into shallow drain field ' trenches. Component Service Service Frequency of Monitoring ' Needed Compliance Monitoring Compliance Level Level Flow None None Quarterly <300 gallons per ' da avera e Septic Tank Pump Scum/solids Annual sludge Sludge Depth build up and scum <12" from baffle, ' measurements Scum Depth<3" from baffle Screened Pump Remove and Scum/solids Annual visual No Low Level � Vault Filter Clean Filter build up on filter inspection Alarms; visual inspection finds excessive solids build-up � Peat Filter Replace Peat Ponding of Annual No Ponding Water Above Above Laterals Laterals under ' drain not lug ed Peat Filter Replace Peat BOD&TSS Every other year BOD&TSS Treatment levels in August Treatment levels , <75% >75% Drain Field Add drain field Excessive Annual Limited Ponding trenches Ponding occurs or no Surface � in Drain Field, or Seepage Surface Seepage is occurrin ' ' 1 1 � r � � � � Miti ation Plan g � Component Possible Failure Response , Flow Too much flow Look for leaky fixtures and leaky tanks, repair ' Septic Tank Excessive solids Pump Tank buildup � Peat Filter Excessive organic Replace peat masses above filter; Lack of treatment , BioTube Pump Vault Filter clogging causing Remove filter and spray off with a low level alarm organic material returning to tank ' Pump Tank Pump failure Repair or Replace Pump Pump Tank Float switch failure Replace Float Switch , Drain Field Above grade seepage View pump run times; check flows; occurring check for UI; check quality of filtrate i.e. BOD&TSS; check for ' pipe or drop box blockage; add more drain field. Piping Frozen; broken; Locate failure point and ' plugged repair/replace. r � � � � � � � � � �— ■� f� � �—� � � � i � � � � � �� Big Island on 710 Big Island Figure 1 Lake Minnetonka County Soils/Project Location i *� . " ` •�, � '�"t�` �� `"�� a�a, � � �: �, '�" ¢.- Project Site � �� a ° ��' � � � -�k �� .�� `-~�+*"' �,� �� "�� ` � �� 's �. . �.�� : � �, � . � f �. s� . . .. a . . S � � +� � f,� . . . � . . � .. . �' .� . '�Y ..... '�� 9 � � �: _� �' � .. +�,�,=� �°-k�� ,�µ . , �� t �r. � �:. �� ' � '�� . k�,�" �, � ' "� ' ' � � � ;�� . , �� r"� � � �. �u '" � :� � � ; ��. � - • i �_: r .� � . � . : » , � � �� «� � � �.��` � ��. ��, � , � � ,�1° . .. ' � � . �� ,° � ,# �:� � �� '' � ��.. � �... m.�„�. �� . x .,. � :� �k „�'k4ro^! , ` � ' .. ,� '�p . . � �� = � �' h .. � _ �� 3 � �' ;� �r �� ° .... � �� . ¥ e � `. . � "� �..� ��y.�. � �.,;i� � �� a' � M�.� "$. , ,. s. � � ' . � `� ,.. .� . � � � � , . ,� � �: ��z� � �� , �" � ,x. . NT�?iM + �� . � tl�, w+a �` � v .�v � � � ��$�', �� _ � _- e� F �' . 1 _ h 1 . ' �;' .g.a_ �. '. ' .�P �� "r . s . ,�. . �xxe �. . ... . . . ... .. . '..v .iTM ' ... .... . . ,�i > .un•.i Sources: MNDOT, MNDNR, Hennepin County FSA 2003 Date:4/30/07 1"= 150' Miller Environmental Inc. Mapped Hydric Soil � � � � � � � � � � � � � � ' � � � � Soil Profile Description Date Completed: 4/19/2007 Test Pit# 1 Completed By: Peter G. Miller, P.S.S. License No. 42636 Equipment: Bucket Auger Project: 710 Big Island Limiting Layer Depth: 24" Landscape Position: 2-4% Side Slope Vegetation: Wooded Mapped Soil Type: Lester Parent Material: Glacial Till HORIZON DEPTH END MATRIX STRUCTURE- REDOXIMORPHIC SOIL SIZING (INCHES) COLOR TEXTURE CONSISTENCE FEATURES OTHER FACTOR* 1.67* 9 lOYR 3/1 Loam 0.83** 1.67* 14 lOYR 4/3 Loam 0.83** 2.2* 24 lOYR 4/4 Clay Loam 1.27** 36 2.SY 5/4 Sandy Clay Many,Fine,Distinct lOYR 5/2 and NA Loam 7.SYR 5/6 "(ft2/gpd)square feet per gallon per day with residential strength septic tank effluent/"`(ft2/gpd) square feet per gallon per day with pre-treated effluent Soil Profile Description Date Completed: 4/19/2007 Test Pit# 2 Completed By: Peter G. Miller, P.S.S. License No. 42636 Equipment: Bucket Auger Project: 710 Big Island Limiting Layer Depth: 35" Landscape Position: 6-8% Side Slope Vegetation: Wooded Mapped Soil Type: Lester Parent Material: Glacial Till HORIZON DEPTH END MATRIX STRUCTURE- REDOXIMORPHIC SOIL SIZING (INCHES) COLOR TEXTURE CONSISTENCE FEATURES OTHER FACTOR* 2.2* 6 lOYR 3/2 Clay Loam 1.27** 2.2* 10 lOYR 4/3 Clay Loam 1.27** Gray sand grains on peds; 2.2* 35 2.SY 5/4 Clay Loam shale fragments;dark red ochres 1.27** 46 2.SY 5/3 Clay Loam Few, Medium, Distinct 2.SY 5/2 NA 52 2.SY 6/4 Clay Loam Many,Fine, Distinct IOYR 5/2 and NA 7.SYR 5/6 "(ft2/gpd)square feet per gallon per day with residential strength septic tank effluent/"*(ft2/gpd) square feet per gallon per day with pre-treated effluent � � � � � � � � � � � � � � � � � � � � � � � � ar r � s � � � � r� � � � �s �w Soil Profile Description Date Completed: 4/19/2007 Test Pit# 3 Completed By: Peter G. Miller, P.S.S. License No. 42636 Equipment: Bucket Auger Project: 710 Big Island Limiting Layer Depth: 32" Landscape Position: 6-8% Side Slope Vegetation: Wooded Mapped Soil Type: Lester Parent Material: Glacial Till HORIZON DEPTH END MATRIX STRUCTURE- REDOXIMORPHIC SOIL SIZING (INCHES) COLOR TEXTURE CONSISTENCE FEATURES OTHER FACTOR* 1.67* 7 lOYR 3/1 Loam 0.83** 1.67* 19 lOYR 5/2 Sandy Loam E horizon 0.83** Gray sand grains on peds; 2.2* 32 2.SY 5/4 Clay Loam shale fragments;dark red ochres 1.27** 42 2.SY 6/4 Clay Loam Many, Fine,Distinct lOYR 5/2 and NA 7.SYR 5/6 *(ft2/gpd)square feet per gallon per day with residential strength septic tank effluent/'*(ft2/gpd) square feet per gallon per day with pre-treated effluent Soil Profile Description Date Completed: 4/19/2007 Test Pit# 4 Completed By: Peter G. Miller, P.S.S. License No. 42636 Equipment: Bucket Auger Project: 710 Big Island Limiting Layer Depth: 32" Landscape Position: 6-8% Side Slope Vegetation: Wooded Mapped Soil Type: Lester Parent Material: Glacial Till HORIZON DEPTH END MATRIX STRUCTURE- REDOXIMORPHIC SOIL SIZING (INCHES) COLOR TEXTURE CONSISTENCE FEATURES OTHER FACTOR* 1.67* 14 lOYR 3/I Loam 0.83** 1.67* 26 lOYR 4/3 Sandy Loam E horizon 0.83** 2.2* 32 2.SY 5/3 Sandy Clay Loam 1.27** 36 2.SY 5/2 Sandy Loam NA 42 2.SY 6/4 Clay Loam Many, Fine,Distinct lOYR 5/2 and NA 7.SYR 5/6 '(ft2/gpd)square feet per gallon per day with residential strength septic tank effluent/'*(ft2/gpd) square feet per gallon per day with pre-treated effluent � � � � � s� � � � � � � � � �r � � a■� r � � � � i � � � � � � � � � � � � � � Soil Profile Description Date Completed: 4/19/2007 Test Pit# 5 Completed By: Peter G. Miller, P.S.S. License No. 42636 Equipment: Bucket Auger Project: 710 Big Island Limiting Layer Depth: 20" Landscape Position: 2-4% Side Slope Vegetation: Wooded Mapped Soil Type: Lester Parent Material: Glacial Till HORIZON DEPTH END MATRIX STRUCTURE- REDOXIMORPHIC SOIL SIZING (INCHES) COLOR TEXTURE CONSISTENCE FEATURES OTHER FACTOR* 1.67* 4 lOYR 3/2 Loam 0.83** 1.67* 9 lOYR 4/2 Sandy Loam E horizon 0.83** 20 2.SY 5/4 Sandy Clay 2.2* Loam 1.27** 30 2.SY 6/4 Clay Loam Many, Fine, Distinct lOYR 5/2 and NA 7.SYR 5/6 "'(ft2/gpd)square feet per gallon per day with residential strength septic tank effluent/*"(ft2/gpd) square feet per gallon per day with pre-treated effluent Soil Profile Description Date Completed: 4/19/2007 Test Pit# 6 Completed By: Peter G. Miller, P.S.S. License No. 42636 Equipment: Bucket Auger Project: 710 Big Island Limiting Layer Depth: 26" Landscape Position: 8-10% Foot Slope Vegetation: Wooded Mapped Soil Type: Lester Parent Material: Glacial Till HORIZON DEPTH END MATRIX STRUCTURE- REDOXIMORPHIC SOIL SIZING (INCHES) COLOR TEXTURE CONSISTENCE FEATURES OTHER FACTOR* 1.67* 6 lOYR 3/2 Sandy Loam 0.83** 1.67* 17 lOYR 4/2 Sandy Loam E horizon 0.83** Sandy Clay Gray sand grains on peds; 2.2* 26 2.SY 5/4 shale fragments; dark red Loam ochres 1.27** 35 2.SY 6/4 Clay Loam Many, Fine, Distinct lOYR 5/2 and NA 7.SYR 5/6 ' (ftz/gpd)square feet per gallon per day with residential strength septic tank effluent/**(ft2/gpd) square feet per gallon per day with pre-treated effluent � � � � � � a� r w� �r � �r � � � � � r � � s � � � �w � � � � � � � � � � � � � Soil Profile Description Date Completed: 4/19/2007 Test Pit# 7 Completed By: Peter G. Miller, P.S.S. License No. 42�36 Equipment: Bucket Auger Project: 710 Big Island Limiting Layer Depth: 30" Landscape Position: 6-8% Side Slope Vegetation: Wooded Mapped Soil Type: Lester Parent Material: Glacial Till HORIZON DEPTH END MATRIX STRUCTURE- REDOXIMORPHIC SOIL SIZING (INCHES) COLOR TEXTURE CONSISTENCE FEATURES OTHER FACTOR* 1.67* 6 lOYR 3/2 Loam 0.83** 1.67* 19 IOYR 4/3 Loam 0.83** Gray sand grains on peds; 2.2* 30 2.SY 5/4 Clay Loam shale fragments;dark red ochres 1.27** 37 2.SY 6/4 Clay Loam Many, Fine, Distinct lOYR 5/2 and NA 7.SYR 5/6 '(ft2/gpd)square feet per gallon per day with residential strength septic tank effluent/'`*(ft2/gpd) square feet per gallon per day with pre-treated effluent Soil Profile Description Date Completed: 4/19/2007 Test Pit # 8 Completed By: Peter G. Miller, P.S.S. License No. 42636 Equipment: Bucket Auger Project: 710 Big Island Limiting Layer Depth: 24" Landscape Position: 2-4% Side Slope Vegetation: Wooded Mapped Soil Type: Lester Parent Material: Glacial Till HORIZON DEPTH END MATRIX STRUCTURE- REDOXIMORPHIC SOIL SIZING (INCHES) COLOR TEXTURE CONSISTENCE FEATURES OTHER FACTOR* 1.67* 6 lOYR 3/2 Loam 0.83** 1.67* 10 lOYR 4/3 Loam 0.83** Gray sand grains on peds; 2.2* 24 2.SY 4/4 Clay Loam shale fragments; dark red ochres 1.27** 30 2.SY 5/4 Clay Loam Few,Medium,Distinct lOYR 5/2 NA and lOYR 5/6 "(ft2/gpd)square feet per gallon per day with residential strength septic tank effluent/"`(ft2/gpd)square feet per gallon per day with pre-treated effluent , � s � r � � � � � � a� � � � � � � � � CERTIFICA� OF INSl'ECTION ACCORDING TO MPCA 7080 ORONO BUILDING & ZONING DEPARTMENT 2750 Kelley Parkway P.O. Box 66 Crystal Bay, MN 55323 This certificate has been issued this 22 day of August 2011, to certify compliance with provisions of the Orono Municipal Code and Minnesota Rules Chapter 7080, regulating installation of individual sewage treatment systems. Owner: Site Address: 710 Big Island P.I.D.: 22-117-23-24-0009 Permit #: 2004-07269 Installer: Hagberg Excavating ,; ; Compliance Officer: _��'� data/forms/blank cert of inspection MPCA 7080 �� %� D T Q� TIME CITY OF ORONO CALLED IN D�/ INSPECTION NQ�C _ 0,70 SCHEDUIED � � PERMIT NO. �J COMPLETED ADDRESS � � OWN ER CONTR. � TELEPHONENO. 7(�3 —� ��—,}�-�o�� DESCRIPTION ��-�-� � � ❑ FOOTING ❑ MEC ANICAL RI ❑ EXCAV/GRADING/FILLING Q ❑ FRAMING ❑ MECHANICAL FINAL ❑ LAKESHORE/WETLANDS y ❑ INSULATION ❑ WOOD BURNER/FIREPLACE O ❑ TREE REMOVAL Z ❑ WA�L BD. ❑ WATER HOOK-UP ❑ SITE INSPECTION Q ❑ FINAL ❑ SEWER HOOK-UP ❑ PROGRESS � ❑ DEMO-SITE ❑ SEPTIC MAINT. ❑ COMPLAINT v ❑ DEMO-FINAL ❑ SEPTIC INSTALL. ❑ FOLLOW-UP _ ❑ PLUMBING RI ❑ SEPTIC FINAL ❑ HARD COVER REMOVAL J ❑ PLUMBING FINAL ❑ FOUNDATION/REMOVAL � OWNER/CONTRACTOR TO MEET YOU:_YES_NO � COMMENTS: � W � � � ' O � 1�'� T r%� �sl�� s �" t �'C� ,� d .� W � - Q � 2 W � W � � d � �VORK SATISFACTORY:PROCEED ❑ PROJECT COMPLETE W ❑CORRECT WORK&PROCEED '= ISSUE CERTIFICATE OF OCCUPANCY � ❑CORRECT WORK,CALL FOR REINSPECTION TEMPORARY � BEFORECOVERING PERMANENT ❑CORRECTUNSAFECONDITIONWITHIN HOURS. ❑ PHOTOTAKEN INSPECTOR WILL RETURN ❑STOP ORDER POSTED.CAIL INSPECTOR � CITATION ISSUED ❑ INSPECTION RE�UIRED.CALLTO ARRANGE ACCESS. Ca11 for the next inspection 24 hours in advance. (J52� 249-460� OwnerlContractor on site: Inspector. _,f _�— White Copyllnspector's File Canary CopylSite Notice