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Home My WebLink About1998-010777 - new septic system PERMIT ' ��Y OF ORONO PERMIT TYPE: � 2750 Kelley Parkway- P.O. Box 66 =,::��:�° Y� �%��° Crystal Bay, Minnesota 55323 Permit Number: .. ;i`s_i_'s;;'; (612)473-7357 Date Issued: " - '.-,_, _,_ _. R„)�j s`'.:�%��_. , SITE ADDRESS: � ;�;{_� i�iT�1:(�E�f =ih'.��;-i1=1?�;� 4i�' � _ tJ ='�—! 1�= —.- _—tii::ti DESCRIPTION: I'°��I� '�L�`"f��i: =�t�:W:i�� _-•-:�'=?` _. !�.�:�,' .?i' i'��'?''!i�.�. s. ,-;r_• ;'•j}_+,+ -.��''__�:_ -��{�'._,�C I � , REMARKS: FEE SUMMARY: .=i�.'ii- }y'`�� .�.�. {�1:.... " --.�......._..� .... � � , CONTRACTOR: _ ��,�,� i;,;;��. _ OWNER: , =';�T%�:�;i=itv �1_�iF.f? .T C:i�1 �1I?i ;=;j,�.1 t�li�`�`}-#`- _ . .�S'=��.;��. !�'�iiji'� �ty`F :�r _;s i i if i�Tfi�=F _�t�°�.�i i��`;;� !-°!_' �.5�..?_�"��{t �� "��_��:';w; �_:�1(,��'�I � S{4`,: tyi'y�� i, .��!.�.� �:j,'_ .i+++.•��_'t I !�-:1- i;�::!7f_,�i°'=:i i��'�Et,C# �.'i%.}.�'.`._'�Y �'..:. }:�._ . _ . `�t;':_' _ �; i �,t#''w �i�t 1°::�.. ._ :�—.t-, i�;s�_��1_ �'_ . . . . _.`'ii-,:'ii�:� i q�:!u,_s�'" L�'t.�° 1-�!*�€! ��.3�:��:• . =.�f .�f_= . .._!». ':s f��>-�'��:, _S.� - , . ,�i�: 1 _ _;!'�`._�`.. ._.:. .. _ . . . . .._.f__ .. _ . . _ —s,c (L _ih_�i:li_i _i�;'�3#i;;. _:°,3�_:t-°_ ��i!'�� _. .. . . _ . . ._. ___ — . '"�'. � t—--'k�``"'-- _ __._ !�._.. , �.,. ._.. .,.# . _. . � APPLICANT PERMITEE SIGNATURE ISSUED BY:SIGNATURE � . ' CTI'Y OF ORONO SEPTICSYSTE1�iPERitiIITAPPLICATION Box 66 (2750 Kelley Parkway) Crystal Bay, N�t �5323 _ JOB SITE ADDRESS: �,o c�ro n o O T c�a r� R�. Occupanc`• Type: Residential �_ Commercial Other Permit Type: Nesv or Replacement System, �100.00 � Repair Existing System, $ 50.00 ` (Tanks or Drainfield) 0.50 State surcharae added to above fees � ,. '"See fee schedule for non-residential permit fees Otivner's Name: � jr� t� tr� � Phone�Tumber: � `� 3 -2� �G_� IVlailing Address: �o a�o a l� -.►-� City: o�-crn.o , Tp_ Contractor's I�Tame: P�rr� a� ��, Phonel\Tumber: �� 1 -�� 5�� 1ldailing Address: $'i �I D�.s4� '¢'�- S_—�- City: �<<�►-o Zip: �S37.S DO tiTOT'1tiIAII� PAYI`•IENT WITH THIS APPLICATIO�i GEYERAI� 1iYSTRUCTIONS 1. Applications for septic system pennits may be mailed or submitted in person at the Ciry Offices; however, permics will not be.mailed out. The permit must be picked up in person at the Ciry Offices and work must not begin unless the permit card is on the job site. � 2, permiu will be issued only to contractors holdin� a City of Orono Septic System Installers License. 3. All work must be done in accordance �vith the approved septic system desi�n. Design reports are not considered approved unless accompanied by the "City of Orono Septic System Approval" cover sheet si�ned by the City Inspector. 4. The followin� inspections will be reguired for all septic systems: _ _ . A. Pre-installation site inspection to include inspector, installer, and general contractor. B. Tank installation prior to coverin�. C. Drainfield trench installation prior to coverin,. For mounds, inspection is required afcer rouQh-up but prior to sand placement (sand will be jar tested for silt content), and a�ain durin� pressure distr.ibution pipin; installation in the rock bed. D. Fi.nal inspection to verify proper final cover depths and to verify that all pump station (where required) components are functional and comply with codes. 5, Individual holdin�NiPCA Installer Cercificate shall be present durin� inspections: A 24' hour notice is required for all inspections. �` � NOT'E: Applicant rriust initial all spaces. Fill in all appropriate blanks, check all appropriate boxes. - 1. I have received a copy of the system desi�n includin� the City of Orono Septic System Approval Cover Shee[. � � .2. I �vill be installin� the followin;: . A. Tanks: f precast Concrete � Other ManufacturerP''«s�+SYs�`t�. Tank Capacities: 1) /�o gal. 2) gal. 3) oal,. B. Pump Station (if required) Pump make & model �,m��.o4's (attach pump curve & literature); system desi�n requires � gpm at �� _ feet of head. Hi�h water alarm make & model �1�G�r. Outside • ' electrical work to be completed by_� installer _� electrician other . Inside electrical work must be completed by electrician. C. Treatment System: . Trenches: s.f. _� Mound Depth of rock below pipe " Rock bed dimensions �O 'x3� ' Drop Boxes Sand bed dimensions y�'x 4 2 ' Distribution Box Pressure Dist. Pipe Diam. _�" Maniford Pipe Diam. � " D. Final Cover/Topsoil to be: borro�ved from site (show location on site plan) � trucked in The undersi�ned hereby applies to the City of Orono for issuance of a septic system installation permit, a�rees to do all work in strict accordance with the ordinances of the City and the regulations of the State of Minnesota, and certifies that all statements made on this application aze complete,.true and correct: SignatureofApplicant: -w-- Date: � r�3 —�� , MPCA Certification No.:_ J 1 � ,3 - Staff Review: Appr al e •� . � � Reviewer: � � � Date: Reason for Denial• � � o � ' � ,� , z�, CITY OF ORONO �d��► � SEPTIC SYST�EM APPROVAL � ,�\ 0 ��. �� C ITY of ORO�TO '��ti°? �''x�.� � ��. � F�j 'jir.'�c*��„ �Y c,Z'/_-';' �, MuniCipalOfFices � `�� '',� � � ��:�,��Y Gti Post Off'ke Box 66 �� .��r� Crystal Bay,Minncsota 5532.3-0066 kESH�� LOCATION: 30 Orono Orchard Rd. N. OWNER: .7im Murphy GENERAL CONTRACTOR: SEPTIC CONTRACTOR: SITE EVALUATOR: Dx Excavating REPORT DATE: Received 9/21/98 The City of Orono has Approved your on-site system design as of September 22, 1998 (approved-disapproved) (date) with the following conunents: The site is approved, but a staff variance has been granted to be located on 10 to 12 percent slopes as no better site is available on the property. THIS IS NOT A PERMIT. This is a design approval form which must accompany the site plan. A permit must be issued to a licensed septic contractor prior to installation. A list of currently licensed septic contractors is enclosed. NOTICE TO INSTALLERS: Any changes to the approved plans and specs must have prior approval of the Inspector (473-7357). Call for inspections 24 hours in advance. ALL DRAINFIELD AREAS MUST BE FENCED OFF prior to building site excavation and fencing must remain in place until final si[e grading. Approval to pour footings will not be granted until tlie Inspections Department has verified that primary and alternate sites are adequately protected. NO VEHICULAR TRAFFIC OF ANY KIND (cars, trucks, earth moving equipment, eic.) is allowed within 20' of tested drainfield sites either before or after system construction. Compaction of these areas could render them unusable prohibiting the timely completion and or limiting the long term use of the property. A site copy will be available at the City Offices for the septic contractor. CITY OF O By �� (' , Stephen W c an, On-site Systems Manager TELEPI IONE-473-7357�FAX-473-0510 JHh!-�=�4-1'��=��=i `.-�,:,.` F,,�_�1 . .� ' , fia� ��' W�_ �� . �QU,; . ,_ t�, : �VI LTND SEPTiC SYS7'EM�ESIGN �«}� , � And STTE EVA�,.UATiQN � ' ; �'UR � 1im Mwphy 30 Orotto Orcha�'d I�oad Orono,MN 473-2645 J� ' S�TE �0 Orono Orchard Road Qrono,MN Henne�in County BY: � DH Ercavating MPCA LiCens�#644 P. O. Bo� 81 NYA, MN, 55397 467•3098 1YQ'$'E: the. site mnst reqaain protected befor'e the construction of the moand in ord�r to protect it f'�om �ail com�actian caused by vehi�les driving over t�e sites. Ai! �property lines mivat be located before canstruction beg►ns. Al� !�tbacks must l�e ma�lntained. All i�ts�all�tion must meet Lo�al L1nit of Governmen;t e�des or MN Sta,t�ete 70$0; whic�ve�is�reater in its restri�tions. Thio site fs t�e bCst oQtipn for this lo� The are� in the turn araun[L fs fi11 soi1, �nd,'the other optio�s a�'� Qn slaFes of g�'e�tefr than 12 �rcent. Tb�s site is not ideal but,wiil rerform ��equ�ti�Y �n treating the waste w�ter generate� by the k�om�, Se�ause of the 1im;�i�ed �iptio�►s the dawsslope was caiculated at 1�percerit eve�n thd`u�h t6e slope�s��Y iQ �ereen� This will add five feet af lr�tment area. , Desi r uirements 4SQ �allons per day X .83 loadirig rate =380 square feet of z'ock bed 3$Q r'�1��(width of xock bed;)= 381ineal feet of r�ck bed Materi�i r uirements 2-]000 �allon tamks(us� existing tanks if seaied and�.pProved by th�City insPectar) � 1-1000 gal��n lift station with azl audiblefvisual alarm xn the home 20 tonS of wast��d binder rock 246 tons of wash�d concrete sand l29 totas o�black loam� (28 of whieh �teeds to be sandy loam far the cap) y � 1 ---� � � 1C; } � , ,� i`� �� •� o � � � • !` � ��i � h" � � q1 U U � \� � ��_ -�� .. � ~ �' � '�' r ` `� Qw � � �� o� -� s � �i ,.� _ Ir Z y L3 r" `� ��., - 0Q � a �d ~5�4 �--� 07 � � ��V� L � � Q � � � r � � � �� O � �, � � � < o � L� v �,� . �� k-- �C�, � � ' �o d � � 2 `� r a � ` ��o - � � �% � ` � o �, t �� '�- �, �3 z '�- `�� ;'� w g��N _-- _ � � � wd �_ ��- Q � �••.fi � �-- — � G �.y . o..Q .�-�- w � � �.;�a � l '= �" -'� - ' pG= � �`` ,�� y > n. � ��cn:� � '-;- �}�— � o� t O O Q ro�S � �s.a ti ` �., }�, �e � p,, J _ _ — "' ' Q � �� t' � 4 Q�2 c�i �W � �+-��'�,3 ,� � �oo ��•�� Q c� ` �1,'i /�� L] �5 OC �� h� 1'L -a a tJ� � It�� i f� 3 -- � � � � } �' �� 5 �•j A � � 4 3:f � 1 v � f �r � `�� ' ' fi '� �� J�� ` � � r -rt. � `t _ ,�C• � ' s �� I a { �FdY' �. ��• � -- ' � � �,. � ; f d - . !� ��, �� l� _. �-- � - � ��.i��ct' + �_.�. '� �i '-1Y t� +f: .�.. 5 ��.� �. '�.` �� _�C� 7 �'\� � �'' _- �� 1 . ''y r �. .� _ . 'i . . . . .. . . . . . .. . . . . _ . . . . . .. _ . . . .. . - � ..''�� .. �, C i � S � ry� % y 5 �.ti_ _ �� ' ,_ _ f_ Y � . _. 05`� , - j�ft�. _ `�.1 _ _ _ �, � � _ , L ;5�'If �j 1r r+j+ . ��g r 'r r ;�� 1 � / � � A � 1 r�� , . ,.�-+ b r •�� + �r?f 1 r ,: 'ti r;� r, _ �} �r'i �� +r+r�+�I�'I,+r�';'',��, . _ r;� 'v� � � - + ; �rj ; 1 r ; � 'r � + c-�. `� �` • v i .��'� � ' ( , +� � 'I -�C • � ;' �-, �`., , N;��p f, r(+'�r,+''+'�r'�''r,+ �';'+� ' . C 1 � . �`�.1 1 ,:�il+�7 i 1� r � � +' r �.` S L., r � i�i r � 1 � � , �t`+ r�+ , f l�� + '+��! - �� i7� ', . I ` _ _ �a f"l i// r r f f „r'f' ` �. �, , Q t - �'rr! �r' �j I�',i�,'ir�r� , � -r c�— �� ' '��f; ++r ;'+; �;r ,;r+', h �� 1 � � i � `� _� � ,o � r `�� ++ 1 � � � , ��n, ;�� p, �� ' I' � � i' `�il 11/y f c3 'r`�''� �� Ca .�'� - � �� 'nrl� _ � �+';r�, ' r . �� ;� y ' �, ' ,:� 1 , ` '- * � ••.�, � f � i f f o ! , ��;' b^,�i ' ° � �Ijr'r �;' � ' r � y � r; i I n7 C � � �. � � I� � i r f _ i.1 ��-�, 4 1 ' r. > >i .� I� � 1 ;J .n� � � JHFI—�=�4-1��=tGi �� __ F'.�=t= Mound Desi n Worksheet _.. �., _ .._..,.._. .� � A. �Iow : F,�tim�ted at 454 g�l�ons per day (gpd} for a three be room dweliia� _ I � B. S�eptic Tank Liquid Volumes #;ofs�ptic tanks�;2 �:capacity = each, 1U00 alians us� e '� � fi if e ed L'ii� station capa��tiy �' 000 allons if they are not,pu_m�and backfill� C. Soils (ref�r ta sail's io�and percolation data she�ts that follow) 1'; Depth to r�s�ctin� layer= ?6" ?; Depth af per�blati�n tests= 12" 3!. T�xt�re of soils are C12�y �oain with a gercalaiion rate u�43 rnittut�s�er inch. 4. Land slope = I 0 ta �2% max. �_„___ ._ --- _ � ._�.. — D. Ii,ock Layer Dimensions t.. Muttiply flaw�rate�by ,83 tc� abtain required area of roek layer, A :� 0.33 = 450 x .0_83 �= 380 sauare feet , ?. RQck bed wiclth vvjlt b� 10 feet �. Len�th of rock lay,er is the square f�et area/�vidtk� = � 384�38 �nesl feet E. I�ock Volume � �. Ivlultiply the rock area by the roc� depth to deterrnine the cubic teet of rock: 380 x 1 =i38U�ubic #'eet �. Divide the cubic f�eet by 27 eu. Fc�t to det�rmint the cubic yaxc�s: 38d/2?'= 14.p7 cubic yards 3_ Mul�iply the Cubia yards by 1,4 to determin� the weight of rock in tons: 14,07 x l.,4 =�U toas of ciean washed a re�ate rock. .._,_ �____.._ -- rrrw r � n Q' i�.... �eC SUtl � R.►7r�ot F. �ibsorption Width �..� ,�� Nw�*►+ � � ,-��a�� , , � >:41 Smd 1,7A l.Ua 1. Percolat�an rate iri the to l2" of sdil is 48 m i. °•'m ''m '°° �--- � P o.�m s s�a oeo z.00 Texture is clay 1o$rn- 661� '-°� o� xn� �'. 3!b�s t L� 030 3.� ,, A6 ro 60 O.N 1.67 � �. Select allow�le �oil loading rate from Table. � � �u s�0° Q.45 gali4ns pjer day pe�square foot of rock are� =�x� �� m 3. Calculate the�abs�rprion wicith ratio by dividing the rock lay�r[oading rate of i�2 �pd/ft2 by�l�owable soil loading tate: � 1.2!0.45�= 2:167 4. Multiply the abso ption width ratio by the rock l�yer�rridth to d�termine the required abs��m�,n width; ' 2.67 x 1�=2 f t _Tara-�_,::�-i��_u_, �� __ F�.c,a G. D��vnslope �enn uVidt� ].:�'; If the landslop�is 1"'o or more, su�t�a�Ct the rock�a yer width frorn t�e absorption wy{dth to abtain miriimu�'n downslope berm tce: 2?- 10 =�7 fe�pt minimum downslo�. 2.:� Calcu�ate the rriir�i�um mound sizc: a, Deter�n�ne t�e depth of cican till at the upslope;edge af the rock layer� (require� se�rationj 3' - l_67' - 1.33 feet b. Add flic�depith of clean sand for 2�, the depth of the rock layer, and 1' for t�e tc�psdil cover needed to determine the mound h�ight at the upslppe e�ige of tt�e rock layer; 1.33 + 1'+1 = 3.�3' c. Seiect t�'►e table multiplier for the upslope berm based on �and slope against 4:1 be� slope. 2_7 � d. Multip�Iy th�be:rm multipli�r by the upslap� mound hei�ht to determin�the upsiope width; 3.33 x,2�.7=�10 feet e. Multiply th� rock layer width by th� landslo�e to det�rmine th�elevation drop; (l0 x 1�)/ I�0 =1 fe�t f. Add tl��depRh 2e ta 2b ta cietermine the tnound hei ht�t the dowt�slope edg�of the rock layer; 1 + 3.3�= 33 �'eet g. Select the t�ble multiplier for thz downsloge berm based tm the land slope �.gainst 4�1 berm slape. . 7.69 ' h. Multiply th� t�erm multiptiet for the downslope maund height to detennine the downslo� width; � nownslmp� -WW Llp��p� 4.33 x 7.69 `= 33 feet slope a�m rn�itipliers berm multipliers i. CornpaTe th�v�lues in G.l �°�^ f�r giveri ratios for given ratios (17 feet) a.nti step G.2h(20 feetj. a:� 5;1 4:t s'.i� , Seiect the gre2i�er of the two values as the dv�nslc�pe berm width; 33 feet. � a.00 s,ao a.00 s.no j_ Total�ounid width is the sum � 4,�� 3,26 3_s5 �.75 pf G.2d, D.2 aa+d G.2i; 7 q�� 5.56 3.7U 4 S4 ]d + 1Q + 3� = 53feet_ k_ Total�noa�d length is the sum 3 �.54 5•g8 3.57 a.:�S pf G.2C�,�?.3, aild G.2d ; 4 4.76 6.25 3.45 4.17 1� + �8 � �? =b�t 5 S.QO 6.b7 3.33 4.00 6 5.26 7.14 3.?3 3.85 7 5.56 7.64 3.12 3.70 8 5.88 8.33 3.03 3.57 9 6.�5 9.09 2.94 3,45 Fin�l D�me�si�p�ts a�f the Mound 10 b.67 10.Q0 2.86 3.33 S3 feet ', � �2 f�et 11 7.14 ]1.11 2.78 3,23 TCiTHL F'.t=�4 A ♦ MOUND SEPTIC SYSTEM DESIGN And SITE EVALUATION FOR Jim Murphy 30 Orono Orchard Road Orono,MN 473-2646 SITE 30 Orono Orchard Road Orono,NiN Hennepin County BY: DH Ezcavating MPCA License#644 P. O.Box 81 NYA,MN, 55397 467-3098 NOTE: the site must remain protected before the construction of the mound in order to protect it from soil compaction c�used by vehicles driving over the sites. All property lines must be located before construction begins. All setbacks must be maintained. All installation must meet Local Unit of Government codes or MN Statute 7080; whichever is greater in its restrictions. This site is the best option for this lot. The area in the turn around is fill soil, and the other options are on slopes of greater than 12 percen� This site is not ideal but will perform adequatley in treating the waste water generated by the home. Because of the limited options the downslope was calculated at 12 percent even though the slope is actually 10 percent. This will add five feet of treatment area. Desisn requirements 450 gallons per day X.83 loading rate=380 square feet of rock bed 380/ 10 (width of rock bed)=381ineal feet of rock bed Material reauirements 2-1000 gallon tanks(use existing tanks if sealed and approved by the City inspector) 1-1000 gallon lift station with an audible/visual alarm in the home 20 tons of washed binder rock 244 tons of washed concrete sand 119 tons of black loam(28 of which needs to be sandy) . �.•• • 9N . ,•::�. . , / �'s�6 . 0� .. � G /o�� i/ �o — � � Lti�p� � � � , �; � � ,t.�,t: // / � �OL = a ro // �— � /J ��/ � � �� ., � o �� h � � /'� V o 2��' 0.1 �O ,N �� p�9f\ J 89N ��%,,� �E�o ,p4° �� a\`a �m �� ,��o/s �� „G�•Q�2 �� v,cl�•g �,��`�' � 46 asnO�\\ � �+L ooa� S �, �� ►�y s'� 0 8 s E� �s.�z ,,� ��r��d�� = .d•t�;vi� ,��I��I o � , N„ a0 0 � ,� � ,�� o y , �� . �,�eS�raS _� �.- s1ti �, '� :.,�,� o lo,�.• S:�� / a;�o a�.y F �''�, � �� ` � 1 � �J,� \ ��2 ; � � Gl�Z � � - _ — . �+�� ' . �� I � � , , � I 1 v''1 _ � �1 i��l � � (, / �\ b�,l�� b�v � � v �� -�15� ln�(� ^� , , , , \ `, ,,�6� ` � 1 a�'� �" ' � � � � � � � ` �� i � 0� � .��: a�.a� � �,, � � 1 � � � � �� s�'�'l'�YJ a1`�'J°11 "��=;�� ' 1 \•G�o;��u,�fS►�o� �Jot,� � � � 1 \ �±} � � ` ' � �fS��,f��.,,� �C � . \ U.�O Sy�l � ` � 1 � �,�c� �/,,,,�o p �,� � � � ��;� � ` � � � ,°S � , � 1C -�� , , s�. o � '� ' �� V� \ � I , � � � � \�� 5 �� ,� �d,�'� � � � / �p�. \\\\\ ,, \ ` � / �!/�.�T//L' \ �uO I / \�� `\ �O�O �� ;s � ., a� i � �y.�,� \\�� g,s0,� `��-_ � / � f d ,p�, � •, �\ �da // O�d . '�a,sy �\ // �,� \\ / / �f � '�� /i ��i i��Q \ //� `SG.. . �- - � � . � � , y �.�n , G� �'rt� . . r � Mound Desi Worksheet A. Flow Estimated at 450 gallons per day(gpd) for a three bedroom dwelling. B. Septic Tank Liquid Volumes # of septic tanks=2 capacity=each, 1000 allons use existing tanks if sealed Lift station capacity= 1000 al� lans if they are not, pump and backfill.) C. Soils (refer to soils log and percolation data sheets that follow) 1. Depth to restricting layer=26" 2. Depth of percolation tests= 12" 3. Texture of soils are Cla� with a percolation rate of 48 minutes per inch. 4. Land slo = 10 to 12%max. D. Rock Layer Dimensions 1. Multiply flow rate by .83 to obtain required area of rock layer: A x 0.83 = 450 x .0.83 =380 square feet 2. Rock bed width will be 10 feet 3. Length of rock layer is the square feet area./width= 380/10=381ineal feet E. Rock Volume 1. Multiply the rock area by the rock depth to determine the cubic feet of rock: 380 x 1 =380 cubic feet 2. Divide the cubic feet by 2'7 cu. Feet to determine the cubic yards: 3 80/27= 14.07 cubic yards 3. Multiply the cubic yards by 1.4 to determine the weight of rock in tons: 14.07 x 1.4=20 tons of clean washed a r ate rock � �t F. Abso tion Wid�l �� II-� Grn ctn'no oF � xw'rE rEx'r�nte rEtt nasoRrrtox wIDrx IN MPI S Ff TO LAYER WIDTH >A1 Couree Saed 1.?A 1.00 1. Percolation rate in the to 12"of soil is 48 m i. o.'�3 S'� I. 1.°° P P o.��s �,�� .� z.� Texture is clay loam. 6�15 S� �, 0.�9 l.sZ 16 to 30 Loam .0.60 2.0 31 to 45 Silt Loam .0.30 2.40 46 w 60 Iusm 0.45 2.67 2. Select allowable soil loading rate from Table. �� .� a.2< S.�o 0.45 gallons per day per square foot of rock area. <Zo� �� fi� 3. Calculate the absorption width ra.tio by dividing the rock layer loading rate of 1_2 gpd/ft2 by allowable soil loading rate: 1.2/0.45 =2.67 4. Multiply the absorption width ratio by the rock layer width to determine the required absorption width; 2.67 x 10 =27 feet G. Downslope Berm Width 1. If the landslope is 1% or more, subtract the rock layer width from the absorption width to obtain minimum downslope berm toe: 27- 10= 17 feet minimum downsloue. 2. Calculate the minimum mound size: a. Determine the depth of clean fill at the upslope edge of the rock layer: (required seperation) 3' -2' = 1 feet b. Add the depth of clean sand for 2a,the depth of the rock layer, and 1' for the topsoil cover needed to determine the mound height at the upslope edge of the rock layer; 1 + 1 +1 =3' c. Select the table multiplier for the upslope berm based on land slope against 4:1 berm slope. 2.7 d. Multiply the berm multiplier by the upslope mound height to determine the upslope width; 3 x 2.�=9 feet e. Multiply the rock layer width by the landslope to determine the elevation drop; (10 x 5)/ 100=1 feet f. Add the depth 2e to 2b to determine the mound height at the downslope edge of the rock layer; 1 + 3 =4Feet . g. Select the table multiplier for the downslope berm based on the land slope against 4:1 berm slope. 7.69 h. Multiply the berm multiplier for the downslope mound height to determine the downslope width; Land Downslope Upslope 4 x 7.69=30 feet s1� berm multipliers berm multipliers i. Compare the values in G.1 �% for given ratios for given ratios (17 feet)and step G2h(20 feet). Select the geater of the two values 4:t s:1 4:t s:� as the downslope berm width; 30 feet. 0 4.0o s.00 4.0o s.00 j. Total mound width is the sum 1 4.1� s.2s 3.85 a.�6 of G.2d, D.2 and G.2i; 9 + 10+ 30=49 feet. 2 4.35 5.56 3.70 4.54 k. Total mound length is the sum 3 4.54 5.88 3.57 4.35 of G.2d, D.3, and G.2d ; 4 4.76 6.2s 3.45 4.�� 12 + 38+ 12 =62 feet 5 5.00 6.67 333 4.00 6 5.26 7.14 3.23 3.85 7 5.56 7.69 3.12 3.70 8 5.88 8.33 3.03 3.57 Final Dimensions of the Mound 9 6.25 9.09 2.94 3.45 49 feet bv 62 feet l0 6.67 io.00 a.s6 3.33 11 7.14 11.11 2.78 3.23 Pumu Selection Procedure A. Determine pump capacity: Gravity Distribution 1. Minimum use is 600 gallons per hour(10 gpm)to stay ahead of water use rate. 2. Maximum suggested for delivery to a drop box of a home system is 2,700 gallon per hour(45 gpm)to prevent build-up of pressure in the drop box. Pressure Distribution 3. a. The number of perforated laterals is 3. b. The perforation spacing will be 3 feet on center. c. Subtract 2 ft. from the rock layer length; 38-2 =36feet d. Determine the number of spaces between perforations; by dividing 3.c by 3.b; 36/3 = 12 spaces e. 12 spaces+ 1 = 13 perforations per lateral f. Multiply the 3.a and 3.e to determine the total number of perforations; 3 x 13 =39 total perforations g. Multiply 3.f and 0.74 to determine the gpm; 39 x 0.74=29 alg lons per minute SELECTED PUMP MINIlVIUM CAPACITY = 28 GPM B. Determine the head pressure requirements. 1. Elevation difference between the pump and the point of discharge is 9 feet. 2. Add 5 feet of head for pressure required at the manifold if this is a pressure distribution system. 3. Friction loss; a. Enter the friction loss multiplier from the table wit gpm&pipe diameter. 1.55 b. Determine the pipe length from the pump to the discharge point. Add 25% to the pipe length for fitting loss. 80 x 1.25 = 100 feet c. Calculate the total friction loss by multiplying B.3a by B.3b and dividing by 100 and rounding up; (1.55 x 100)/ 100 =2 feet 4. Calculate the total head required by totaling B.1, B.2, and B.3c; 9 + 5 +2= 16feetofhead TOTAL REQUIRED MINIMUM HEAD IS 16 FEET. The pump installed must be able to deliver at least 28 gallons per minute with at least 16 feet of head. Log of Soil Borings All boring measurements are in inches unless otherwise noted. The soils are located on the bottom slope of a knoll. The parent material is glacial till. The soils are typed as being Hayden Clay Loam by the USDA soils survey. There was no bedrock or water present in the borings. Boring#1 elevation of boring 95.7 mottled soils at 26" 0 - 12 10YR3/2 topsoil friable 12 - 17 10YR5/4 silt loam grey present on Ped faces (forested)friable 17 - 28 10YR5/4 clay loam reds&greys at 26" friable 28 - 60 10YR6/3 clay loam friable Boring#2 elevation of boring 95.7 mottled soils at 20" 0 - 13 10YR3/2 topsoil friable 13 - 16 10YR5/4 silt loam grey present on Ped faces (forested)friable 16 - 24 10YR5/4 clay loam reds& greys at 20" friable 24 - 60 10YR6/3 clay loam friable Boring#3 elevation of boring 95.7 mottled soils at 23" 0 - 14 10YR3/2 topsoil friable 14 - 19 10YR5/4 silt loam grey present on Ped faces (forested) friable 19 - 29 10YR5/4 clay loam reds&greys at 23" friable 29 - 60 10YR6/3 clay loam friable . �, Percolation Test Data Sheet for hole#1 Test hole location: 30 Orono Orchard Road, Orono,Mn. Date test hole was prepared August 26, 1998 Depth of hole bottom, 12 inches Diameter of hole=6 inches Soil Data from Test Hole Depth, inches Color Texture 0— 12 10YR3/2 Clay Loam Sidewalls scratched with a stick with nails. Depth of pea rock in bottom of hole was 2". Hole initially filled on August 26, 1998 at @ 9:00 a.m. to 12"above the bottom of the hole. An automatic siphon was used to maintain at least 12"of water in the hole for 4 hours. Percolation test was conducted by DH Excavating. Percolation tests started on August 27, 1998 at 7:30 a.m. Maximum water depth above the bottom of the hole dwing the test was 12". TIlVIE INTERVAL WATER WATER DROP WATER DROP PERC RATE (MINUTES) DEPTH (fraction) (decimal) CALCULATION 7:30 Start 12 8:00 30 minutes 11 3/8 5/8 .625 30/.625 =48 mpi 8:03 Refill 12 8:33 30 minutes 11 3/8 5/8 .625 30/.625 =48 mpi 8:35 Refill 12 9:05 30 minutes 11 3/8 S/8 .625 30/.625 =48 mpi Perc rate=48 mpi Ten Percent Calculation 48 - 48 = 0 If the top number is larger than the bottom number, lazgest rate—smallest rate take another reading. If the top number is equal to, 48 x .10= 0 or smaller than the bottom number,than average of smallest rate the three readings is the perc rate. � • . , � Percolation Test Data Sheet for hole#2 Test hole location: 30 Orono Orchard Road, Orono,Mn. Date test hole was prepared Au�ust 26, 1998 Depth of hole bottom, 12 inches Diameter of hole=6 inches Soil Data from Test Hole Depth, inches Color Texture 0— 12 10YR312 Clay Loam Sidewalls scratched with a stick with nails. Depth of pea rock in bottom of hole was 2". Hole initially filled on August 26, 1998 at @ 9:00 a.m. to 12"above the bottom of the hole. An automatic siphon was used to maintain at least 12"of water in the hole for 4 hours. Percolation test was conducted by DH Excavating. Percolation tests started on August 27, 1998 at 7:50 a.m. M�imum water depth above the bottom of the hole during the test was 12". TIlviE INTERVAL WATER WATER DROP WATER DROP PERC RATE (MINUTES) DEPTH (fraction) (decimal) CALCULATION 7:50 Start 12 8:20 30 minutes 1 l 3/8 5/8 .625 30/ .625 =48 mpi 8:23 Refill 12 8:53 30 minutes 11 3/8 5/8 .625 30/ .625 =48 mpi 8:55 Refill 12 9:25 30 minutes 11 3/8 5/8 .625 30/ .625 =48 mpi Perc rate=48 mpi Ten Percent Calculation 48 - 48 = 0 If the top number is larger than the bottom number, largest rate—smallest rate take another reading. If the top number is equal to, 48 x .10= 0 or smaller than the bottom number,than average of smallest rate the three rea.dings is the perc rate.Maintenance , � • .`. Maintenance The homeowner of an individual sewage treatment system must properly have the septic tank(s)cleaned by a licensed pumper every three years, at a minimum, in order to prevent the sludge from reaching any point closer than 12"from the bottom of the outlet baffle, or the scum from reaching a point closer than three inches higher than the bottom of the outlet baffle. Ple�se note that this is required to eztend the life of vour svstem. Drainage and final landscaping All surface water must flow away from the tank and drain field area. A drainage plan should be completed to insure tha.t surface run off from the hill,buildings, and driveway drain away from the system. To help the functioning of the system, it must be sodded or seeded. This will prevent erosion, and assist in disposal of the water. Shrubbery may be planted outside of the perimeter of the drain field,but not over the drain field. A water meter may be installed to measure all water entering the system. NOTE: If a chlorinated hot tub is installed in the home the water from this is considered clean and should be discharged somewhere other than the septic system. Any other water products that generate"clean"w�ter should discharge somewhere other than the septic system. Ezamples of these include: sump pumps, pools,water softener,iron filter,self-humidifying furnace. To plumb these into the system will overload it and void any warranties. GENERAL The contents of this report are to be applied to the listed properiy only and are copy righted. Reprints are available from DH Excavating. The soil conditions have been established at the test hole locations only. There may be variations in soil stratigraphy between and around the borings,therefore the extrapolation and interpolation of the results are not warranted. All requirements of this design must be followed in order for the system to perform up to the designed capabilities. If you should have any questions or need further information,you may contact the staff at City of Orono Planning and Zoning, or DH Excavating at your convenience. Sin re DH Ex ng a DATE TIME . CITY OF ORONO CALLED IN S'��' INSPECTION NOTICE SCHEDULED ��8 � PERMIT NO. �6 7'7'7 COMPLETED J� �� ADDRESS � �P• � OWNER CONTR. TELEPHONE NO. 9��-�`�� DESCRIPTION ,�. � 01 FOOTING 11 M ANICAL RI 18 EXCAV/GRADING/FILLING Q 02 FRAMING 13 MECHANICAL FINAL 19 LAKESHORE/WETLANDS y 03 INSULATION 24/25 WOOD BURNER/FIREPLACE 34 TREE REMOVAL Z04 WALL BD. 12 WATER HOOK-UP 17 SITE INSPECTION Q 05 FINAL 14 SEWER HOOK-UP 06 PROGRESS � 07 DEMO-SITE 27 S 21 COMPLAINT v 07 DEMO-FINAL 22 FOLLOW-UP i09 PLUMBING RI 23 SEPTIC FINAL 35 HARD COVER REMOVAL J 10 PLUMBING FINAL 36 FOUNDATION/REMOVAL � OWNERICONTRACTOR TO M YOU:_YES N � � COMMENTS: � � �u + ` .� a � � O �. � O � W � Q � 2 W � W � � � WORK SATISFACTORY:PROCEED ❑ PROJECT COMPLETE W � ❑CORRECT WORK&PROCEED O ISSUE CERTIFICATE OF OCCUPANCY W O ❑CORRECT WORK,CALL FOR REINSPECTION TEMPORARY V BEFORECOVERING PERMANENT ❑CORRECT UNSAFE CONDITION WITHIN HOURS. INSPECTOR WILL RETURN ❑ PHOTO TAKEN ❑STOP ORDER POSTED.CALL INSPECTOR ❑CITATION ISSUED ❑ INSPECTION REQUIRED.CALLTO ARRANGE ACCESS. Call for the next ins ion 24 hours in advance.473-7357 Owner/Contracto ite- Inspector. White yllnspector's File Canary CopylSite Notice ATE TIME CITY OF ORONO CALLED IN 4 INSPECTION TIC SCHEDULED ' � PERMIT NO. co PLETED ` ✓1 ADDRESS ' OWNER CONTR. TELEPHONE NO. � DESCRIPTION � 01 FOOTING 11 MECHANICAL RI 18 EXCAV/GRADING/FILLING Q 02 FRAMING 13 MECHANICAL FINAL 19 LAKESHORE/WETLANDS y 03 INSULATION 24/25 WOOD BURNER/FIREPLACE 34 TREE REMOVAL Z04 WALL BD. 12 WATER HOOK-UP 17 SITE INSPECTION Q OS FINAL 14 SEWER HOOK-UP 06 PROGRESS � 07 DEMO-SITE 27 SEPTIC MAINT. 21 COMPLAINT J 07 DEMO-FINAL 5 SEPTIC INSTALL. 22 FOLLOW-UP � 09 PLUMBING RI 35 HARD COVER REMOVAL J 10 PLUMBING FINAL 36 FOUNDATION/REMOVAL � OWNERICONTRACTORTOM �U: YES.�NO � COMMENTS: i / � a ' 1�' jy O � � � � ` Q � W � Q � Z W � W � J d WORKSATISFACTORY:PROCEED ❑ PROJECTCOMPLETE W � ❑CORRECT WORK 8 PROCEED ❑ ISSUE CERTIFICATE OF OCCUPANCY W O ❑CORRECT WORK,CALL FOR REINSPECTION TEMPORARY � BEFORECOYERING PERMANENT ❑CORRECT UNSAFE CONDITION WITHIN HOURS. �NSPECTOR WILL REfURN � PHOTO TAKEN ❑STOP ORDER POSTED.CALL INSPECTOR ❑CITATION ISSUED ❑ INSPECTION REQUIRED.CALLTO ARRANGE ACCESS. Call for the ne in ' n 24 hours in adv nce.473-7357 Owner/Contractor o s' • Inspector: White Copyllnspector's Flle Canary Copy/Site Notics � _ � I�E CITY OF ORONO CALLED IN INSPECTION NOTICE 1�1 SCHEDULED PERMIT NO. C COMPL TED ADDRESS � � OWNER CONTR. � TELEPHONE NO. � DESCRIPTION � 01 FOOTING 11 MECHANICAL RI 18 EXCAV/GRADING/FILLING Q 02 FRAMING 13 MECHANICAL FINAL 19 LAKESHORE/WETLANDS y 03 INSULATION 24/25 WOOD BURNER/FIREPLACE 34 TREE REMOVAL � 04 WALL BD. 12 WATER HOOK-UP 17 SITE�NSPECTION Z Q 05 FINAL 14 SEWER HOOK-UP 06 PROGRESS � 07 DEMO-SITE 27 SEPTIC MAINT. 21 COMPLAINT v 07 DEMO-FINAL 15 SEP TALL. 22 FOLLOW-UP ? 09 PLUMBING RI 2 EPTIC FINAL 35 HARD COVER REMOVAL � 10 PLUMBING FINAL 36 FOUNDATION/REMOVAL � OWNER/CONTRACTOR TO M YOU:_YES_ �� COMMENTS: � � W � a j � O � � O � W � Q � Z W � W � � d �WORKSATISFACTORY:PROCEED �PROJECTCOMPLETE � ❑CORRECT WORK&PROCEED �L� ISSUE CERTIFICATE OF OCCUPANCY � ❑ CORRECT WORK,CALL FOR REINSPECTION TEMPORARY � BEFORECOVERING PERMANENT ❑CORRECT UNSAFE CONDITION WITHIN HOURS. � pHOTO TAKEN INSPECTOR WILL RETURN ❑STOP ORDER POSTED.CALL INSPECTOR � CITATION ISSUED ❑ INSPECTIONREQUIRED.CALLTOARRANGEACCESS. Call for the next inspection 24 hours in advance.47�73�J7 OwnerlContractor Inspector. White Copyllnspector's File ' Canary CopylSite Notice rt .