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Home My WebLink Aboutseptic design .� , - � O� CITY OF ORONO .,� SEPTIC SYSTEM APPROVAL o ��, o �� ;� -] �F4;��- ��;;�vF �.� �ITY of O�i��'O �, � �3 � �; 4C':.;: I�f r.�.:• . Y��. � � ri.2�-'%� _, `> Municipal OfFices w� � 'ti' ��f� ti� Post Office Box 66 '� L;�;� �`�i��G c�y��aay,hiinnesota 55323-0066 �kES�I04 � - LOCATION: 1745 and 1755 Fox St. OWNER: �s Abukhadra GENERAL CONTRACTOR: SEPTIC CONTRACTOR: SITE EVALUATOR: S-P Testinq REPORT DATE: December 16, 1996 The City of Orono has Approved your on-site system design as of M�Y 16, 1997 (approved-disapproved) � (date) with the following conunents: A variance is qranted for slopes greater than 6% as no better options are available. The site has slopes up to 8%. 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 site 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, tcucks, earth moving equipment, etc.) 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 .�-� Steph n eckman, On-site Systems Manager TELEPHONE—473-7357•FAX-473-0510 J"� TESTING� ��+. Steven B. Schirmers • MPCA Cert.No. 627 951 Katydid Lane NE • St. Michaei, MN 55376 • (612) 497-3566 FAX (612)-497-5011 State License #394 December 16, 1996 Anas Nafi-Abukhadra ,�T,s --j Z Z Z 1745 & 1755 Fox Street Orono, Henn. Co., MN ��, ��f �` These sites have existing on-site sewage treatment systems which are classified as failed due to not meeting a 3' separation from the saturated soil (mottled soil) and the bottom of the system. A new system will need to be installed. This on-site sewage treatment system is designed for a Type 1, six bedroom home (main) & one bedroom (caretaker) home, in accordance with the Minnesota Pollution Control Agency Chapter 7080 and local ordinances. The soils on this site are SCS soils mapped - KkC - Kilkenny loam. The seasonally saturated soils were located at 16" to 28". Due to the seasonally saturated soils, a Pressurized Mound System will need to be installed to treat septic effluent. The bottom of the treatment area must be located at least 3' above the saturated soils. The soils at a depth of 12" have a percolation rate averaging 7.9 mpi. A pumping chamber will need to be installed to lift the effluent to the treatment area. The power supply and switches must be located outside the manhole and pumping chamber in a weather proof enclosure. A warning device must be installed with a light and sound device, this is in case of a pump failure. The manifold and supply line pipe must have back drainage to the pumping chamber. The distribution pipes shall have their ends capped. Be sure the rock and sand fill material are clean. The sod layer below the entire mounded area must be turned over, just break up the sod, be sure not to over work. 1 The existing tanks may be used upon approval from the local Inspector. The tanks must be water tight. The main house will need 1-1250 & 1-1000 gallon tank & a pumping chamber. The caretaker house will need 2-1000 gallon tanks & a pumping chamber. The caretakers house will pump the effluent to the main house pumping chamber which will pump to the mound system. Set the pump at the caretaker house at 75 gal/cycles. All neighboring wells are located greater than 75' away from the proposed treatment area. One well was found on these properties at the caretakers house. Keep all heavy equipment off of the proposed treatment area before and after construction. The treatment area shoufd be marked off before construction. This Design is not valid & the system will need to be relocated if failure to protect the areas proposed for On-Site Sewage Treatment occurs. 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 waste & toilet tissue should be disposed of into the septic tanks. Garbage disposals are not recommended, due to adding more solids & fine solids passing through to the system. Excessive amounts of soaps, cleaning agents & chlorine agents may kill the bacteria needed to treat septic effluent. Additives are not recommended. Recommend to pump & clean your tanks through the manhole by a certified pumper every 2 years. Check with your pumper to set up a schedule. �� • �� Steven B. Schirmers 2 _ __ — �� — l / � � f ` % J `, " � / 'KtJ�'F'L% R4�tL 1S Y�UR��..Abt'� 'N '11#� ✓ ` w'S'SLtil;-��. �� sc.�-C�.�- W) N,v-r-r�.�o so,�. 1 g"-rt�a4�� Zi�iow-n-)� �sea��o 5�'�sA� Wu,�w w„� ��' [c'�'��•�¢� f1^ Mo�x� S�tYT4�m �s��t-� S�ts-r�.-1 TuY o�N�..�,� � , '._"_� � \� ��S. � Q� n `" ��`,d � � � � W w, .- F- g �e 40'S !� 0 m N �. �►ct'SSt N V_ - �}'`�-� / �j Z `� � .x ��? � _� TR?1Y— _ '�_ (n W �j ^ � �� o4os� � <t � 3 eg� � �/�CKYUWS "��` C,{j � a rw c � � � \ � ► 7zJ �r . �� . �p C 1 \ � , � " i �� \ � � , � ..� . � - - - - - -. - - i - � R�4o�s�o �� it ¢ .. � � � � ��a m�� J A ' s )s.� .;; �o� � �Qos�o�-C�-�r1� o� I P�1d \ / Faso � mS,.r(.c3�� n So� � i r;;; ;.. ��- Rr A��C�� o*xs'��C1Ot-1. �� I i "' ! m} ' \ \ —' v:J �_ :�: ,�o � � �- . �i1 .'_' ^-;- . � �� :� ' 4 •�. Z T L �153�?��a } � � I �� ?,1� 1 VI � > i!) ►�4�u' \ Novs-�, � \ o•� �Dq XsB � � ' � f,�" �_�u =� '� M,� S n,ost��, �� " � � � ��,a� :a ��Yl'� % '(0'P O'F L0�-1 L4-'GS H� � `'� C,� C� a � � �; SLA'iS �4'T S��J�t.� -voo-�. '�B7M �r ��,- � C� , R � (� �i '� '�: � V � Rc.: � 'T � +� � ,& � 'L=� - /Ob .AO J��Q� .��V� � �,� � .: ..�-s�� / � ��4- p 1 S'f'�YYSS�S'Q31-� q�q ZStY� ,/1c - �� \\ \ � 3i1 � r�9�.,, S ' ��' �Perco►o!�on Tests Scale=- 1 = (o� � � _ \ _ �Soil Borirgs � ��± (� „ , 5�y ,Y.z �Berx1: MO({C 1 i U 9�.9+ /� � \ � � \ I _� .:, < �i ., _ ,s.`� - Note= Th�s sysfem is to be constructed to meet _ _ — �'�„. � �� O '��q�''" " the Atir�nesota Pottu!ion Con!rd A;,enc�r _"`� y a *�aS��-c�- ��3� �+ `�'� f � Chapter 7080 & Local Ordinanc . S��.c �,r�� -� � :,�.► M'1.7\h`s a�, / � _vg,.�� 5�.5 � ��.� `c-...�_\ /y q��/� • "-'-- � � ��;,, �3 +9�,s Check all underground �itilities I `y ��.��'�i � �.� . �' ,\�`. i t -T ` �o4o�c-a .p _ �� "(��4-S , h `2'� q�,y a�o`� a �75.J i � `�`""�""� �`�.¢.��"`""-s `q'"'�'��'� �-�es� l._o� PRCPERIY OF= U A�� -�.��G-��— t 95.L -�(�'a 4am4�N ` 'Pgo4os�rn �i�g- 175� '�OrY.. S't��. \ �� ,a-�a-�.�.-�� -��r,�,��-r �n�o r� � 1-��+� ac� u��a��e -y' No�s� ' ' 9�.� �,.o � \ �� S-P TEST/NG/N . ��s-n�+� . s sKs��. / / � � - �c�yc�Nv �`� y �� C)es+gned By=7�u7 . 7��i�---- w�`"�' xs� s-s , \ Co'e=J..�/1.1/9b, PN.6�2 -497-3566 I - mo��3 b� ,X+,rC L J l. i - --------- — � _ � , � - . , I ►� ��.isS � � iu�,� u� �o�� II�o I `�� - - `- - � - - - � ��' ��7� -- '�� Qti �oP oF sR..to �':� j '1�� , �,� F��_��.� 3•^ ss I /,� 5 t1�-�.0. �-9 7.� � iP�p�J v��I ----� -�—- ------ i SET- BACKS � /o'__� �o � � � ' HOUSE Syslem must be� �'��a -----� �-- _ L�9 . �� Tonk �� from property lines X - S F�-��c,�-.-1 �,�� S f�� w�o-��_ .� from wel!s �2, from b'dgs. ��y�. � "'�--��`'''��s - ,,,, ireotmen! oreo ;,�� froc;� lakes , � s#�a�s � Treotment area =-�� from property lines NOTE= Power supply and swiiches must be locoted in a � MA�N►foc.ES m�n t�" �S 'from we'.!s weather proof encbwre oulside the pumping chamber and manhole � C�RLC Fit� � � ' c; �� ' i�om t�r�ees� y� SOIL BORIhG ELEVATIONS ; � i � '�� c If�� ; -�o min. I TH r� ��•'� I � , a „dia.su 1 _ o TH. 2 EL.-gc_.5S � _ a y p' C�fLG�e �' �p � Oro to Tonk Tank i T o n k ( "� P(��SSURE DISTRIBUTION MOUND SYSTEM ✓ �O T H. 3 E�.-3 1 9 p � � � �, TH,� �L.- � TN`5 EL- N,in. I��io 8 pump;n9 Mox.l��to4� � ��P �'�U�S Sl��A��oc�J Chomber E��VATIOV al PROPOSED PL'MPING 4�10 6��dia.pipe C:-{AN:9tn- ��.v ��,��Q �-�.c� la�oua�.� a-s �'�" -�AI-��F- - '�3•� SYSTEM DESIGN -MOUND �� d� " " - �a.c. TYPE-I, Z. BEOROOM , Averoge percolotion rate�_min./inch (design.83sq.ft treotmenf orea pergal. of daify sewage flow) 1os� gol./day x.83sq.ft/gol.K�z sq.ft.of ireotment orea +10% _ — sq.f1. (.= IOfi.width=�2_ft.lenqth of bed area+side slope run�.to I x3_"�heighf= �2_ft.x1�ft.la�n�area needed) qean rock needed- ��sq.ft.treatment area x �•os� depihoF rock=9J I� cu.ft=27=�_cu.yds,(3/4�to 21/��dia. ,incJudes 2��of rnck above pipe) -�a�� Cleansand fiil below rock needed�.�cu.yds. opprox. , sandy{oam back fill�_a.yds.approx., topsoil 6��a.yd. Av�• S��o oEPTu 1.'� (�Ec.o_��1i�._.-Co Aoo �.0'70 -to Toeso��.�oF ��RE:�LA¢Ss.o�� [��cn) �ra».� �.�o�sr� Numberof ianks required �_ Isitonk �15� go1. , 2ndlonk��J gal.minmuns Ft.us P�-1mP�Nu �1��-lmp�R- =a��k-cg '� � , .� ,, . •� ' /�o c� /oe J Pumping chamber copocity- 25% of doily sewage fbw of LO��gal.=�b�gol.+reserve s'orage of 15 0��1/B1� � D gol.+pipe bock drnvioge— PROPERTY C�� - J of J�gol./IOOlin.ft.of.3�dio. �pply pipe, lin.ft.needed��, .�_goli manifo!d 1�gol./IOOIiRftof a"dio.pipe, In.ft.needed2 , Z- gol. 1 '� o total copocity needed_I��gol.(Plus area for pump) usE rn�,n. 1 So C� ga 1,ca P. (c�.tya,�� -l000�gl �,p-: J y5�w.F-c a`b�a s�� o . C . � Distribution pipe ��3_d�o. ,aS.S lin.ft., ��i��dio. perforotans ��aport C�5g�+1-* '-��+t.�a,�.ar�� o��,�) L�(�t.E-].I�NEHD� yS��JM,,, r.,ax.� i��u�, Pump s¢e �•�t hp. (pumpohie copacily��Sgal. 4cycles/day) �s�� S1 � H�Ao PR��s �_D_�_5��-1AQ-U� '-1S a� rn� n.___ � S—P TEST/NG //�!C. Na1e � When cortstruciing bed - � tnis oreo shoub be shaped Note� D�stonce from trEotment oreo �o ne�ghbo��nq w�lls— � r,es�qned 9y= -�� 10 divert run-o`f from eniering ireotment oreo. `'��- ��5 �� / � V PH. 612-�+97-3566 ; Doie 'L�11�� , . MOUND DESIGN WORKSHEET � (For Flows up to 1200 gpd) A. �,ONJ Ettimuod Sew�ase Flow in Galloc�s pa Day(gpQ) . .� Estimated /o Sc� gpd N�anber or measureci - x 1.5 = - gpd. s��t„s �`' �'P`u �ry�►t� �ry�rv 2 300 27S 180 6oa� 3 450 300 218 °� B. SF1''ITC TANK LIQLTID VOLUMES � 4 �0 3�s u� ,� 5 750 450 294 � - On0 g�0I1S 1 - 1�SO Qj I-1bc�c7 6 900 525 332 � Hv+-�5�. 7 1Q50 600 370 �� LtFR�- �c�'_ �^'�4\�-\ 8 1200 675 408 C. SOIIS (refer to site evaluation) � � ,r „ �� N�bc y�T� �.,�a 1. Depth to restricting layer = ��,�o � a� inches B� �,, �,, 2. Depth of percolation tests = �a inches `'""'' `"""' 3. Permlation rate �•q mpi 2;a`� ,'� ;�,� 4. Land slope 370� ��o % 7 a a � ��0000 wc 9 See fi;.C-6 (a 1S) D. ROCK LAYER DIIv�IVSIONS 1. Multiply flow rate by 0.83 to obtain required area of rock layer: A x 0.83 = �d.So . gpd x 0.83 sq. ft./gpd = ��_ sq. ft. 2. Select width of rock layer (10 feet or less) _ /o ft. 3. Length of rock layer = azea y width = R�g� ��sq. ft. y �o ft. _�Z ft. ,.�.,.�.,.,.�.�.�.,.,.,.,.^*-�.;� r•r•r•r•�•r.�.f•f �•t•l•1•f•t•1• ti.�•�•ti•�•ti•�•ti•ti•ti•ti•ti•ti•ti•�.�•ti ��tif�ftiftifti��.r{rti�tifti�ti tiftir�f�fti �dth 510 ft. .f.f.f.f.f.f.f.f.r.f.f.�.,..f.f.f. �•�.�•ti•�.ti.�•ti•vti.��ti.ti•�•�•�•ti .f.f.r.t.f.f.f.f.�.r.r.�.f.f.r.f. E. ROCK VOLUME �- �'g�` � 1. Multiply rock area by rock depth to get cubic feet of rock; � �,sq.ft. x i•�ft. _�cu. ft. 2. Divide cu. ft.by 27 cu. ft./cu. yd. to get cubic yards; ,y�cu. ft. -c-27=��cu. yd. 3. Multiply cubic yards by 1.4 to get weight of rock in tons; �_cu. yd. x 1.4 ton/cu. yd. _ �� tons. F. ADSORPZZON WIDTH �-`'A`� �°�"`1'� �«,w�a�,s�, Lble 1. Percolation rate in top 12 inches of soil is ��q mpi ��o,,h�,R„� ��. A.�d l,.ti„t,u,pR;�, Soil Textune �� "d,'ed (mpil �.. .s.>yonn Mdd� 2. Select allowable soil loading rate from table; Faster than 0.1 oarse Sand l.zo i.00 0.1 to 5 Sand 1.20 1.00 � LI f gpd/ft� 0.1 to 5 Fine Sand� 0.60 2.00 6 to 15 ndy Loam 0.79 la2 3. Calculate adso tion width ratio b dividin rock la er 16 co�o �,o�, o.bo z.00 � Y g Y s� co as s>>c t.oam oso z.ao loading rate of 1.20 gpd/ft2 by allowable soil loading rate; �to bo cta �oan, o.as 2.6� 1.20 gpd/ft2i ,�.f gpd/ft� = a• �� sioWe��Zo ciay osa �.00 "Soil Fuving 509G or more d tux or vay fux sand 4. Multiply adsorption width ratio by rock layer width to get required adsorption width; ��x�ft =� �.�ft � G. DOWNSLOPE D�WIDTH 1. If landslope is3��more, subtract rock layer width from adsorption width to obtain minimum downslope dike toe �_ft-�o ft =�Z_feet 2. Calculate Minimum mound size based on geometery: a. Detemune depth of clean sand fill at upslope edge of rock layer: Separation I, � feet b. Multiply rock layer width by landslope � �ooc co�.� to deternune drop in elevation; : r o o c R o e a Slope Difference seperet�on tut Slops Olfterence ___ ei ��^��-�.�t v ��ii-�- -- x -- %y 100 = - feet Upslope W101� c. Add de th of dean sand for se aration (2a) �� teet P P Rock Bed WIGIh at upslope edge, depth of rock layer (1 foot) to depth of �o teet DownsloDe Wtatn cover (1 foot) to find the mound height at the upslope edge �� eet of rock layer; I , � ft+ lft + 1ft= 3.'� feet d. Enter table with landslope and upslope dike ratio. Select dike multiplier of 3 .'� . 3��o e. Multiply dike multiplier by upslope mound height to find upslope dike width: 3-� x ;.� _ �_ feet �asti »' � f. Add depth of clean sand for slope difference (2b) at downslope edge, to the mound height at the upslope edge of rock layer (2c) to find the downslope height; 3.'� ft+ - ft = 5 ,'7 feet g. Enter table with landslope and downslope dike ratio. Select dike multiplier of S,� � �JD h. Multiply dike multiplier by downslope mound height to get downslope dike width: ��, x �.� _ _�o feet i. Compare the values of step G.1 and Step G.2h Select the greater of the two values as the downslope dike width; �� -�� aD feetso' �^ ,' I.,., E uosiooe viiatn j. Total mound width is the sum of ° '° f �=Z- �set ; � �� upslope dike (G.2e) width plus rock g,�K o a w�a�� layer width (D.2�PIl1S 9 uosiooe wiatn �J �� uocio e wiain downslope dike width(G.21�' G�� 3 �- �eet � (eet ' � � ,a �_ft + �ft +�_ft = �_ feet '�� ; k. Total mound length is the sum of I = °°'""�pe "'°`" ' �aa� ; ; upslope dike width (G.2e) plus rock layer � length (D.3) plus upslope dike width (G.2e); I� ft + �2ft + JZft = 1�.1 feet 2 0 �� zo �a� �a� 7otei�enptn owns ope ps ope 3:1 L1 5:1 &1 7:t J:1 a:l S:t &1 7:] 9:1 7G alope 0 3.0 t0 5.0 6.0 7.0 3.0 4.0 5.0 60 7.0 8.0 1 3.09 t17 S.�b 636 7.53 291 3.Bi 4.76 5.66 (�SI 7.l1 2 3.19 435 556 G62 8.16 2.83 L3.70� d56 5.36 G14 6.90 3 330 454 5.88 7.32 8.86 275 357 435 5.08 5.79 6A5 4 3.�1 l76 6.Z5 7.89 9.T2 268 J.4S 1.17 d.84 5.16 6.06 5 353 � G67 857 IO.T) 261 �.33 6.00 �.62 5.19 5.77 6 3b6 5 7.14 938 1207 2.54 3.Zi 3.85 l{1 �.93 5.41 7 3�0 7.69 1034 1373 268 3.12 3.70 �.73 1.70 5.13 8 3.95 S.HB B33 1154 75.91 242 3.Q3 357 1.05 4.�9 l.88 9 �.Il 6.�5 9.09 13A/ 18.92 Z36 244 3.45 3.90 630 4.65 ]0 �19 6.67 l0A 15.00 2333 23t 286 333 3.75 4.12 4.46 ll 4.48 7.14 11.11 17b5 30.�3 2.26 278 3?3 �.61 3.95 6.26 12 1.6A 7.69 12.50 21.43 43?5 221 270 3.12 3.49 3.80 d.08 ��) A�l�-�1 �1�•� F-17 .__,� p'iJMP SELF.(7ION PROCEDUR� E10 PERFOFiATION OF 4 PERfOAATED LOTERAL A.. Determine pump capacity: w-.�..., Gravity Distribution T�,,,,, ]. Minimum suggested is 600 gallons per hour(70 gpm) to stay ahead of - . ' a��w�,K��,,�,. water use rate. �`"'"S"'""' ��S"'°"'.'"°''"°''.."'° �... .�,,a,.,' � Maximum suggested for delivery to a drop box of a home system is 2,700 , ��'��^d�� ^�^�� _. .. . titi c�o ,..a, ,e, gallons per hour(45 gpm)to prevent build-up of pressure in drop box. , �,;�,w e ; -� R��,��, �,,. �. . P�AWo1Mr��Yc�IN al Pressure Distibudon ��.-��,.�... �"^,« U�.^' 3. a. Select number of perforated laterals 3 b. Select perforation spadng=�_feet °""""�"' •,'^"^'�""° BNrr V4oM S�M lAK c. Subtract 2 ft from the rock layer length. `�� -2 ft._��fee� d. Detemu�e the number of spaces between perforations. Length pesf.spacing=�ft. +�_ft.= a� spaces Requimd Perfontion Disch e e. ,z�spaces+ 1 =�Perforations/lateral �,gauons per B,i„��e�gp� f. Muldply perforadons per lateral by number of laterals to ��3��e�Q D�H'�'d e , maP,, � �a� get total r►umber of perforations. ��; x �, ��_�perforations. �p�c) �'� ` g• � X��,Q,=1°L$Pm. 1.Oa 0.56 0.74 SELECTED PUMP CAPACITY��gpm 2.�b Q.$Q 1.04 B.Determine head requirements: a. Use for single family homes l. Elevation difference between pump and point of discharge. b. Use for all other applicaeons �_feet � 2. If pumping to a pressure distribution system,five feet for pressure required at manifold if gravity system,zero. �_feet 3. Friceon loss a. Enter friction loss table with gpm and pipe diameter, Pipc Lcng�h � Read friction loss in feet per l00 feet from table. � Poinc of D�scharg� F.t.. = 3•�7 ft./100 ft of pipe ioo.o b. Deterrnine total pipe length from pump to discharge Elc�a�on Diffcrenc�� point Add 25 percent to pipe length for fitting �p _ �G,c loss,or use a fitting]oss chart. Equivalent pipe ]ength-1.25 bmes pipe length= F-18b ay0 x 1.25 = 3U0 feet c. Calculate totai friction loss b multi 1 n 1.5 inch 2.0 inch 3.0 inch Y P Y� $ �m Friaim lm pc 100 ft of pipe friction loss in h/100 ft by equivalent pipe length. Total fricdon loss= x 3oa +100= feet 10 0.69 0.20 .�'�1- �--�- 12 0.96 0.28 4. Total head requireti is the sum of elevation difference, 14 1.28 0.38 special head requirements,and total fricHon loss. 16 1.63 O.a8 l8 2.03 0.60 20 2.47 0.73 0.1I "z � + S + �_ ?S 3.73 1.11 0.16 (1) f2) (3c) 30 5.23 1.55 0.23 3S 7.90 2.06 0.30 40 11.07 2.64 0.39 TOTAL NEAD �_feet 45 14.73 3.28 O.a8 50 3.99 0.58 i C. Pump selection � 5:� 0:8° ; 1. A pump must be selected to deliver at least ._:� ��gpm (Step A) with at least ,�_ feet of Eotal head (Step B). � �-��-r�� -��S� F-i� �-,, � PUMP SELF.(�ON PROCEDURE . E/0 PERFORATION OF 4 PERFOliATEp �4TEAAL A. Determine pump capacity: �-�� Gravity Distribution T.,..,, 1. Minimum suggested is 600 gallons per hour(]0 gpm) to stay ahead of - . - • � a c«.��w�,k�d��.� wacer use rate. � ,`"",5.�.",.' �"'°...�"°,. .,,°""""° r�'��.�,...,o�-� 2. Maximum suggested for delivery to a drop box of a home system is 2,700 ,. . M�=��^a�� ^��" „»� ,..a, ,>o gallons per hour 4�_m)t prevent build-up of pressure in drop box. .•�,;p,„ a , _: R«.'��° `°°' � � w.ao,w.'to�.,« ei Pressure Distibution ��•.- �""'"" `•"" 3. a. Select number of perforated laterals - on�.w s�� r..e.rry sv�iw b. Select perforabon spacing= - feet �.,,,.,,,,M 5,,,,�,,,, c. Subtract 2 ft from the rock layer length. ��- 2 ft. _ �- feet d. Deternune the number of spaces bet�veen perforations. Length perf.spacing= '_ft. + -ft.= spaces Required Pertoabon D�n e e. _spaces+ 1 = perforations/lateral u,�110�per a,;�,��e(gp� f. Muldply perforations per lateral by number of laterals to DH��e �2.d�, i Pd� get total number of perforations. ti��,� x �,,, �Q,,= perforations. �f�q g' -7�* X a�ve+--'gP m. SELECTED PUMP CAPACITY�gpm 1��JL. 1.Oa 0.56 0.74 2.Ob 0.80 1.04 B.Determine head requirements: a. Use for single family homes 1. Elevation difference between pump and point of discharge. b. Use for all other applications �_feet �� 2. If pumping to a pressure distribution system, five feet for pressure required at manifold if gravity system,zero. feet 3. Fricdon loss a. Enter friction loss table with gpm and pipe diameter. L Pipc Lrng�h Read friction loss in feet per 100 feet from table. Poi�c of D'u�harg� F.L = 3 ,a`� ft./100 ft of pipe Ys" b. Deternune total pipe length from pump to discharge Elc�ation DiFfcrencc point Add 2S percent to pipe length for fitting p�p _r)C loss,or use a fitting loss chart. Equivalent pipe ]ength - 1.?5 bmes pipe length= F-18b I�t x1.25 =��feet c. Ca]culate total fricdon loss b multi I n 1.5 inch 2.0 inch 3.0 inch Y P Y� $ gpm �,;a�,ta.�,i ao n�r P+� friction loss in h/100 h by equivalent pipe length. Total friction loss= � �l x +100= feet 10 0.69 0.20 -�-•- -1-�- -� 12 0.96 0.28 4. Total head required is the sum of elevation difference, 14 1.28 0.38 special head requirements,and total fricdon loss. 16 1.63 0.48 18 2.03 0.60 , 20 2.47 0.73 0.11 � 5 + - +�_ 25 3.73 1.11 0.16 �1� �2� (3�) 30 5.23 1.55 0.23 35 7.90 2.06 0.30 40 11.07 2,.64. 0.39 TOTAL HEAD �_feet � 45 14.73 (3.28� O.a8 30 3.99 0.58 55 4.76 0.70 C. Pump selection 60 5.bo 0.82 ; 1. A pump must be selected to deliver at least ,_:% �-i gpm (Step A) with at least �� feet of total head (Step B). wi A�-• S-P TESTINGi I�C. Steven B. Schirmers • MPCA Cert.No. 627 951 Katydid Lane NE • St. Michael, MN 55376 • (612) 497-3566 FAX • (612) 497-5011 State License #394 LOGS OF SOIL BORINGS Anas Nafi-Abukhadra 1745 & 1755 Fox Street Orono, Henn. Co., MN Borings completed on 12-2-96, with a 1-1/4" soil probe. BORING NUMBER 1- Etev.97.9 - MOTTLED SOIL AT 1'4" - No standing water present in boring. 0 - 8" Topsoil dark brown loam 10YR 3/2 8" - 16" Brown clay loam 10YR 5/6 16" - 30" Rusty gray brown clay loam 10YR 6/3 - mottles 7/2,6/6 30" - 48" Rusty gray brown loam 10YR 6/2 - mottles 7/2,6/8 BORING NUMBER 2- Elev.96.8 - MOTTLED SOIL AT 1'8" - No standing water present in boring. 0 - 12" Topsoil dark brown loam 10YR 3/2 12" - 20" Brown clay loam 10YR 5/6 20" - 28" Rusty brown clay loam 10YR 6/3 - mottles 7/2,6/8 28" - 48" Rusty brown loam 10YR 6/3 - mottles 7/2,6/8 BORING NUMBER 3- Elev.97.9 - MOTTLED SOIL AT 2'4" - No standing water present in boring. 0 - 12" Topsoil dark brown loam 10YR 3/2 12" - 28" Brown clay loam 10YR 5/6 28" - 32" Rusty brown clay loam 10YR 6/3 - mottles 7/2,6/8 32" - 48" Rusty brown loam 10YR 6/3 - mottles 7/2,6/8 CEI�TiFICA'f'ION N0.627 STATE LICENSE N0.394 PERCOLATION TEST DATA SHEET Fercolation test readings made by S-P Testing, nc. on 12-3-96 starting at 11;14am• Test hole location Abukhadra, 1745 & 1755 Fox �t , Orono Test hole number�. Date test hole was prepared 12_2_96• Depth of hole bottom.�inches. Diameter of hole¢inches. �OIL DATA FROM T .. T HO . DEPTH,INCHES SOIL TEXTURE 0 - 8" Topsoil dark brown loam 8" - 12" Brown clay loam Method of scratching sidewall is l��. Depth of gravel in bottom of hole is 2 inches. Date and hour of initial water filling 12-2-96, 12:OOpm. Depth of initial water filling is '12 �nches above the hole bottom. Method used to maintain at least 12 inches of water depth in hole for at least 4 hours is automatic siphon. Maximum water depth above hole bottom during test is�inches. Measurement, Drop in water level, Percolation rate, Time Time interval,min inches inches minutes er inch Remarks 11:00 refill 6 11:14 11:44 6 4-1/2 6.7 30 min 11:49 12:19 6 4-1/4 _ _ 7_1 _ 30 min_ � 12:20 12:50 6 4-3/16 7.2 30 min I --- -- -- ---------- ------ -- --------- ---- -------- -- ----- -I I -- � _- ----- --- J Percolation rate =�Qniinutes per inch. CERTIFICATION N0.627 STATE LICENSE N0.394 PERCOLATION TEST DATA SHEET F'ercolation test readings made by S-P Testing,Inc. on ]2-3-96 starting at�1;15am• Test hole location A,bukhadra. 1745 & 1755 Fox St., Orono. Test hole number�. Date test hole was prepared 12_2_96• Depth of hole bottom�inches. Diameter of hole�inches. SOIL DATA FROM TEST HOLE DEPTH,INCHES SOIL TEXTURE 0 - 12" Topsoil dark brown loam Method of scratching sidewall is ife. Depth of gravel in bottom of hole is 2 inches. Date and hour of initial water �lling 12-2-96, 12:OOpm. Depth of initial water filling is 12 inches above the hole bottom. Method used to maintain at least 12 inches of water depth in hole for at least 4 hours is automatic si on. Maximum water depth above hole bottom during test is�inches. Measurement, Drop in water level, Percolation rate, � Time Time interval min inches inches minutes er inch Remarks � 11:00 refill 6 i --- ------ ---------------- ---------_ _�i 11:15 11:45 6 3-518 8.3 30 min I 11:48 12:18 6 3-1/2 8.6 30 min �------ — ---_ --------— ----—----- 12:21 12:516 6 3-1/2 8.6 30 min -----I -----� J Percolation rate =$ S,�Zinutes per inch. CERTIFICATION N0.627 STATE LICENSE N0.394 PERCOLATION TEST DATA SHEET Y�;rcolation test readings made by S-P Testing, Inc. on 12-3-96 starting at 11:16am• Test hole location Abukhadra. 1745 & 1755 Fox St., Orono. Test hole number�. Date test hole was prepared 12_2_96• Depth of hole bottom�inches. Diameter of hole�inches. SOIL DATA FR�M TEST HOLE DEPTH,INCHES SOIL TEXTURE 0 - 12" Topsoil dark brown loam _ Method of scratching sidewall is knife. Depth of gravel in bottom of hole is 2 inches. Date and hour of initial water �lling �2-2-9(� 12:OO�m. Depth of initial water filling is �2 inc.l�.above the hole bottom. Method used to maintain at least 12 inches of water depth in hole for at least 4 hours is automatic s�hon. Maximum water depth above hole bottom during test is�t inches. — ------- ---- Measurement, Drop in water level, Percolation rate, Time Time interval min inches inches minutes er inch Remarks � 11:00 refill 6 11:16 11:46 6 3-5/8 8.3 30 min � 11:47 12:17 6 3-5/8 8.3 30 min 12:22 12:52 6 3-5/8 __ 8.3 ___30 min___ J Percolation rate =$s�ninutes per inch. PERFORATEO �oaMr sallo CAP LAYER OF GEOTEXTIIE �,._;;.� �ATERALS FABRIC PERFORAT�D LATERA� �,,=.. --::--• .._ �.• ' --.�y'��• . • ....,_. . .. . GRASS COVER 6 INCNES SANDY �onr� soi� : ��_ �� "�'�•';:},.'-.C' • TOP501� , , �. �' • �•^ •� CLEAN SAND FII.L _,. �i �' ,��•.�• ' � ''��,�✓' MAXIMUM SLOPE-- IAYER OF GEOTEX7ILE � �F .�t�� 3 To � CLEAN ROCK a� FABRIC OR 4 INCHES OF ' ` ' � ' ;��f.�� ,�� ;. T�� P�OwEO oa 'ia To z'it INCHES s�� HAY COVEREO BY ' . i �' D�SKEO SURFACE BUILDING PAPER ?�� ' -�j��/ � X j�� ueso�� • I�/Z� OR 2` ,.;��'"" �,%�� %� CROSS SECTION A- A PIPE FROM PUMP� •�.• ' �� `� :� '� y�. '�� .`�,(,� � i v',/ �� I / � PiPE FROM : �r'� PUMPING CHAMBER 3�'_Z�� ' .,f:•��. ,�/ /.� •.,.: ) .� CL�AN F�OCK y!•� �� DIVERSION FOR • �• � ,�'� � � �► / J� SURFACE WAYER Y , ; ,� 6� TOPSOIL�, /� �;/�+ � /' � o � .,:�. � ` — _ . . � � " �' �.il >�' 1--�;- - -;-� --� ,.,�•=�::,�-- �'�` / t{ / ,� � � I t �� . �" , •',� 3 f�� — PERfOR4TE0 : ; I � , �� /�9��/ f/ (�qx• � L'ATERALS � � _, •_ _ ��:,� '\l w �. t. � �.{"' � � � . <, _.Ji�s� <<. ( .. ` �• � �� .W ,� 2�.-� , . a /.";,� — � I� •••� �• S�OPF ^;ti.�;:::�:'::�•�;lt�;; � � . Q •�..'.�'•+'M��•�. i SQN�E N . _. �.�.` 3 •�;� �:ti,.:;.:... . � ; � _ �� .�,�. ►- F�l `$ D ' t 6�� \� '�'•i;. BEO AREA� � � , � . l � 1. �'��°'�-; ; I Z . BRpkEN YFR `�F�`�-;'� . — �----�� W :- .�'.�.._ . �>>..� i I J UP � � .-.� .^��... � � � o . a ( � ' W � � m ° BAR�AFRR lqY� :��^�' - _ _ _ ; _ .- � � , Z ; Z � I o,#..o ' INCNE I � � � � � INCNE$ -- LAYOUT OF PERFORATEO PIPE LATERALS FOF2 _ � � � i I PRESSuRE OISTRIBUTION IN MOUND —• ' � ' : . �I—�—, — —� I OIKE ----^�-�� FEET�_p�KE PERfORATEO PlASTIC PIPE — MAX. /'� � _ TOTA� WIDTH �\�1 � RAf�ON SPA�lN� i . • � '� � `--PERFORATIONS SPACED 36� � END S,ZE EMAY BEP�6FO;iTION \ � PERfO p�AN VIEW viEw oR �,�- f6 _ _ - 2�MANIFO�D � EN� PERFORATION OF A PEAFORATE� LATERA� PIPE " Grost Core� PERFORATIONS ON BOTTOM OF P�ASTIC PIPE � Tsweu va., '�� .::.:, ...- . ��. , �or��of G�oiu�ll� fabrlc (u tw- � _ � =�'(ALTERNATE LOCATION ' � �O"'�'S°"d l�r«• ,'._Incl�wy.r,��ww co.«.e OF oIPE FROM PUMN) � Wrlw lion prillyd NorltoNally ' • •. ,�N�o C D rMor Too • �/f Plw „—Ai Uo�� 12�to EdQ• ENO CAP 9Q•. / Rp� �` a F��d Rak . � ol Rxt Lor.r LAtE \ �\ - � .,. • v«�«�u«,.�laco�.e o� / QRA1Eo 2 PIVE fROM Cban Sond lnr�r Bonorn of loi.rai /�� F �ERF GUMPING CMAMBER �� - \ .rNGfN O o�iohoi sou P.op�rly ScaI11�C . . F-8 REOWOOD, CEDq� OR WATER TIGHT 8l �OCKABLE ELECTRIC BOX—� TREATED POST (4 x 4 min) ' PLUGS OR ELECTRIC CONNECTIONS— �ALL EIECTRIC CONNECTIONS MADE 1_ INSIDE BOX 2" PVC CONDUIT SCHEDULE 80 6.SP� LOOP OF POWER CORD FOR MANHOLE COVER CHAINED 6� LOCKED SETTLEMENT SEAIED MANHOLE RINGS FINAL GRADE �` � AT LEAST 12� ' � BELOW GRADE UNI ON WIRE FROM POWER SUPPLY - ' PIPE IS LAID ON A UNIFORM SIOPE FROM • /�� , FOR PROPER NDRAINBACK IL TREATMENT 11REA SEALED 7ANK COVER �IF PIPE AT TANK MUST BE LOWER THAN UNION. TO GET ELEVATION FOR DRAINBACK, PUISTIC ROPE OR CHAIN A �/4 INCH WEEP HOLE MUST DE USED WITH ANCHOR---� — y�EEP HOLE ALARM FLOAT ON SEPARA7E ELECTRICAL CIRCUIT NOTES� E�ECTRICAL WIRE FROM POWER SUPPI.Y . S�RT I,�FV�9__ � _ MUST NOT RUN OVER ANY TANKS BUT r' ' MUST BE LAID BESIDE OTIIER TANKS 3"� J `� AND MUST BE PLACED IN CONDUIT ALONG POST _ Sh{UT=4EF�,EV��Q_ _ _ ELECTRICAL CORDS FROM PUMP AND FLOATS MUST 8E RUN THROUGH CONDUIT. WIRES CANNOT HAVE GROUND PUMP CONTROL FLOA1' CONTACT. �� : � Figure F•8 METAL � COVER ; �., _.+�, .� -!�- ��: �� '� _k '� l�� ' �`� ,. � �.v:,. � ,i�:., �; I 'Y'. � • I > x, I I I A I I i �` ,ie:�'-._+_:,.• I � I i CONCRETE ,zs�' ! MANHO�E ' ! RING METHODS OF SECURING MANHOLE COVER TO PREVENT UNAUTHORIZED ENTRY Figurc C-14 � `. VERTICAL SIDEWALL SEPTIC TANK �� FINISNED GRADE -AT LEAST 6"TO 12" SOIL AT LEAST 4" DIA. COVER 4" DIA.—� � � ' AT LEAST I" �,��y AT LEAST I" �, �.,•.�,... .. �,... � ,� —� 1 A DIMENSIONS FOR TANKS WITH VERTICAL SIDES A � t WIOTH. W 24' MINIMUM _ LENGTH, L 2 TO 3 TIMES THE _WIDTH _ B DIAMETER 60� MINIMUM _ : � � DEPTH, � 30" MINIMUM; 78' MAXIMUM C � n 0.2 D r — �AT LEAST g �� 6" MINIMUM• 0.2 D MAXIMUM _ 6" - 3�� 1—-- C � 0.4 D _. .----- ._AT LEAST 4 FEET-- -- —^ HU1E5: � i. Snt+itnriY lE6S�t L�ntT�u�CnES�N Dt��.�EtErt �. AWa K�I E WVEftS Y V�LL RF.IOCA�ED V+�l�iw��iNG�ES. 1. 1��[f1E5+wlUCp1EOR��EMH1�iOl[5.20'lFnSi I('T�IEAw+iKXE�SN/�i11NWiNC1�ESOf1�KSUfYACE I11Mf1K1UNN1UlUC�1F�W1111M16FEE(aKLiN�K 11�EOOvE11MJSIUCSECU[DIOf'(EVC1/111CCCS.4. ,,,��5 ' 6. .'�,Cf`AT1�lUP1UiSf/J�CEOLTWEENF.NUOfIt�ETf`If`f.IWU l. Mlrrst'ECIION(`u'EOFAIlEn5l�wl:li(SniMY:tEII NEMESif�Or�l(JNWlflL9WlUENO1.f541i1M1t1HC1�5 OnAww�OIES�W.LRElOCn1E00vE�D�1r1�i�EiraET Onr+ot.q�+Eilv�It2e+Ct�Es. N�OU1lLIDCVKYS.IHECF171EJ1lWCCfllf;tl4'kCit�11 6. FOI11101YZCNII/�CYItIfN1iCN.1/JIK.�,OIMCIlSKklAIS0.�50 ��rFssiv�LLOCIIiCSni.`i.51i�EUN�lf11wE�7HE AHDOu.F.NSiONC1�0.]50. ONFLfpKNWGSd�SNUIN7YICES A114ILL)4!$I�ECIiON � I'�'C MJSI RE l0C'�ItuFk IWCf.N tliF,tilEl/WI�cK�ll[i pN f�E S. --' � PENCIL � AAAF2KS .,.� 1 , ••,...'. 6 M .,.�� t�narv2r+a.E °�' ,� y �► . � . . , , INLET '" SCUM �. ; �� OUTI.ET � �I 'r=��OUTLET LEVEL ._j�� I. I ''` f` i'. _.. --•- — _ _�� '� �' . —.._ SCUM CI.EAR SPACE = Jr;, CL.EAN OUT TANK WMEN' �; — • —" — _— _.. �_—•,�. — - '� �1 IS 3' OR LESS OR _ — -- — — �} g '8'IS 12�OR �ESS � �' . `' 1 Y. :�,�:;.:.::.:: : • . . . . .. . . .. . .;: .. . i;:�:;:.;.'..��.� : ..:; BLACK COIAR � ��1'��:�:�'••�.' • SLUDGE ;� � ' DISTINGUISHES SLUDGE 's' '";.;;,. ., _ �, LAYER FROM LIOUID � �i^•;•';•�`' i� . ., i.;>` .l'r :�i�:t. .f'..� MEASURE SCUM AND SLUDGE ACCUMULATIONS I N THE SEPTIC TANK