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Home My WebLink Aboutseptic design-general approval V��I G�t 1 � a��roUa / Qe•z / ✓t ��C� �'r'na� p�eS' t� 7 s a f- 1D�v' ��f��s' /z�i �l�C G r��u.� � �,�m�.e n �� .�°� ��.� �� Joseph Olson D.B.A. Rusty Olson's--Soil and Percolation Testing .Iosep6 J. Olson--MPCA License#810 11481 River-ti�ieH� Rd. NE, Hanover, MN 553�1 (763) 498-8779 Fax (7b3) 498-8290 December I�1, 2016 Gonvea Homes 780 Lakeview� Park�s�ay Orono. Hennepin Count�- This on-site Sewa�e Treannent System is designed for a Type l,five bedroom home in accordance with the Minnesota Pollution Control Agenc��Chapter 7080 and local ordinances. The periodically saturated soils were located at 22-26 inches(mottled soil). Due ta the periodically saturated soils, a pressurized mound s��stem �+•ith 6 inches of rock will need to be installed to treat the septic effluent. The bottom of the treatment area must be located at least 3' above the saturated soils. This s�•stem is designed with b inches of rock. � The soils at a depth of 1?" have a percolation rate averagina 9.9 MPI. A 22�0 gallon septic tanks needs to be installed. All tanks need to be insulated if there is less than two feet of cover o��er the top of the tanks. Clean outs must be installed on the end of the laterals for maintenance. Use 7;32 inch perforations on the laterals. A 1300 aallon pumping chamber will need to be installed to lift the effluent to the treatment area. The power suppl� and s��itches must be located outside the manhole and pumping chamber in a weatherproof enclosure. A ��arning device must be installed with lijht and sound devices; this is in case of a pump failure. A flow measurement device must be installed. Including but not limited to a water meter,event counter, runninQ time clocks or electronically controlled dosing. Kee�all heavv equi�ment off of the oroposed treatment areas before durin�and after construction The area araund both sites must be fenced off bv the contractor before anv constructian be�ins With proper installation and maintenance,this s��stem should have no problem in treating septic effluent effectively. Nothine other than era� �+�ater.(laundry, showers,etc.) Human Nater and toilet tissue should be disposed of into the septic tanks. Garbage disposals are not recommended. Additives must not be used they may cause harmful damage to your septic system, ft is recommended that you pump the septic tanks every two vears. Sinc . Joseph J. Olson � � 6) f �Ilti JpbW ' ' t '� - -- — __f'�'44S"_�.��_�1 G � �t-��-�� i c1 -" �7—� (S[6 t � 1 . - ��Lat.slo_•..,� 035�c.ca �vr ��IZ l,�n��ebg � /� !"aE :1 � _ �. 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S_8�drQom./lverage percolalion rate_T_� 7'N�,�Z E�._S�9,� Y�._ -- - � � �t�{Ey,,;9� 9 73a gal/daY .�_sq_(t.oftreatmeni area ^ ��;, T��.,•�„79,(� - �i.�U�Q it- Widt�=�.3+Ft, lez�rn o�b�area � �e14,(l,Z�;.��p�Aoe�r�#n�s �F�....q?9.� Side stope run�9 io l.x 3��-�teight= LIv ft.x 89 ft. tawre area. �».�� . ,�$�..u 974.9 _ �� ' Cteaa rack needed p!w 209b a�i c�_yds.Coarse wached san 3a ��•�.-��••� �cu.Yds. Ave��tge sand�fepth� '�'��i�� 5and�r ioam I g cu_yds.,ro�,sc»I 6"_�G_.r�.inls•1�S� `�9 cu_Yds_ ��s�W� �� Nu►nbc�r of tamks I �,lYtank��ats..2id tank___._.�a�.,Pump�d�a�r+�er ca ac" � +�Y l.3_�ts- P�C1p�FtTlf A�: wYt�h ..L�.�a1s-�1��neai feet of�1'dea-Su�pfY�n�e>li�ea!€eef�eded $S' L�': °; � )$'� Lt K�Vi�w PA(�tc w�t�r ' --� - - -N C'a��.�t`f Disiritwtion�ipe T�"d�a �� lineai fe+et.�l�dia_i�erForatowts 3 G "a rt --- , �� €�loat seC at To'�.o 7� gah., �a times l�e�r ot�1►P�+nA curve 6 • ata �_J min.��_fieet head �ressure. ��xhse�p �:,�„�l,�� 'h_ ?b3-49&8T74 .� .. . .,..._ R .., _� . � . __ . _ .�._:.�s<.,W,.. � 2011 purple code Mou nd Desi�n www.SepticResource.00m (vers 15.2) P�operty Owner. Gonyea Homes Oate: 12/14l2016 Site Address: 780 lakeview Parkway PID: 0611723430021 Comments: instnxtions: � =enter data � =adjust if desired Q = computer calculated- DO NOT CHANGE! i> �bedroom Type � ResidenCiat System z) 750 GPD design ftow s> Yes Garbage disposal or pumped ta septic 50%larger tank with multiple comp/tanks � 2250 Gat Septic tank (code minimum) ?350 Gal Septic tank (design size / LUG req'd) Tank options: none s� 1.2 GPDJftZ mound sand loading rate contour toading rate of 12 req's a min 62.5 ft. long rakbed 6� 10.0 ft rockbed width 63.0 ft �ockbed le�gth » 3.0 ft lateral spacing 3.0 ' ft pe�foration spacing (maximum of 3 for both) end fee�d manifold connection g) �3 laterals 61.0 feet long 21.0 perfs / lateral 63 perfs totat (1/2 a perf means the first pe�f starts at the middte feed manifold) 9� 7/32 inch perfs at �feet residuat head gives 0.56 gpm flow rate per perfo�ati�on for this perf size ft spacing, �t pipe size on line 12, mau perfs/lateral= 30 , line#8 must be less --> 4K �o> 4.0 doses per day (4 minimum) �i� 188 gallons per dose (treatment volume) 2.00 Sx �i> 2.00 inch diameter laterals must be used to meet"4x pipe votume"requirement 2.00 3x isy 85 feet of 2.0 inch suppty tine teads to 14 galtons of drainback volume (Tip: 'top feed"manifold to tont�ot the drainback) ia� 202 gallons TOTAL pump out volume (treatment+drainback) is� 10 feet vertita!tift from pump to mound laterals, leads to a: �6� 36 GPM @ 19 feet of head, Pump requirement (note: >SOgpm may require an extra 3-6'of head) ») 750 gal Dose tank (code minimum) 1300 gat Dos�tank (design size / LUG req'd) at 25.49 gpi leads to a is> 7.9 inch swing on Demand itoat, or timed�sing of 5.6 min ON (confirm pump rate with draw�wn (this detivers Average flow, a70%of Peak design flow) 9 h�s OFF test and adjust as netessary) �9� 12 inches from bottom of tank to"Pump OFF"'ftoat ?o� 20 inches from bottom of tank to"Pump ON"ftoat,or 12 inches to"Timer ON"float if time dosed Zi> 23 inches from bottom of tank to"Hi i.evel"float, or 33 inches to"Hi Level"ftoat if tirne dosed u} 714 gallons reserve capacity (after High Level Alarm is activated) . z3> 0.45 gpd/ft2 Absorption area Soil Loading Rate, which gives a mound ratio of 2.7 (minimum) (this must match the soit boring log) desired mound ratio 2.7 �a� 10 percent site stope (0-20% range) �0 (%downslope site slope, if different than upslope) s> �inches, or 1.8 ft. to Redoac or other limiting condition (need at least 12"to be a Type I) Treatment zone contains�inches of 0%soil c�edit,and �0 inches of 50%soil credit. Giving a: 2e> 14 inch, or 1.2 ft. Sand Lift Mound CRtTiCAL FOR FUTURE CERTIFICATIONSt!! �� 27.0 ft.Total ABSORPTION width (with sand beyond rockbed as follows:) �8► 0.0 ft. upslope and sidestope 17.0 ft. Downslope Individuat slope ratios give BERM widths (topsoit beyond rockbed)of: a9� 4;1 upslope ratio 9 ft. upstope berm 30� 3:1 sideslope 13 ft. sideslope berms 3 i� 3:1 downslope 21 ft. downslope berm 3�� Overalt Dimensions: 10.0 ft. wide by b3.0 ft. long Rock bed 40 ft. wide by 89 ft. long Mound footprint 4" inspection pipe 18" cover on top U berm � �� , 2 t 12" cover on sides t6•�y�&6•to��q 1.2 Ctean sand lift _ 1.8 a�p�h t� Lirniting l.imiting Condition —__�-�________ Absor tion W�dth n.,� ______ __� —q —__� Note• For 0 to 1%slopes, Absc�rpt/on WYr�lh is measureri from the Be�dequalt� in both directions. For slapes >1A6, A,6sorpt/on WYd'1`h is nneasured downhill froni the upstope ed�e of the Bed. s3� Rock Bed: 10�0 ft. by 63.0 ft.by �inches under pipe, plus 20%gives 21 yd'or"1.4= 2g �� 3�� Mound Sand: {note: volume is based on 3:1/4:1 slope from top of rockbed, ExtMange sand for loamy cap if desired) 20.1 up + 66.1 downslope + 11,t ends+ 38.9 under rock= 164 yd'or"1.4= 229 ton plus 20� 3s> Loamy Cap: 36 ft. by 85 ft. 6"deep, plus 20;K gives Qyd'or"1.4= 95 ton 3e> Topsoil: �ft. by 89 ft. 6"deep, ptus 20%gives 80 yd'or`1.4= 112 ton I hereby ce ify that I have completed this work irt accordance with alt applicable ordinances, rules and laws. Rusty olson's Soit& Perc 810 12/14/2016 . signer Signature Company License# Date , Instaiter Summary 2250 galton Septic tank(minimum) Tank optionsc none ��targer canK wiin mu�upie cornpi tan�u 1300 gallon Dose tank(minimum) at 25.49 gpi 36 GPM C� t9 ft. of head, Pump required 7.9 inch swing on Demand float whith translates to roughly 5.0 inches of float tether length if time dosing is required-•> 5.6 minutes ON time& �9 hours OFF time 20 inches from bottom of tank to"pump ON"float, or 12 inches to"timer ON"float 23 inches from bottom of Lank to"Hi Levet Alarm"ar 33 inches to'Hi level atarm"if time dosed 85 ft. of 2.0 inch supply line with end feed manifold connection (Tip: "top feed"manifotd to controt drainback) 14 inch, or 1.2 ft. Sand Lift Mound 10.0 ft. wide by 63.0 ft. long Rock bed 3 laterals 2.00 inch diameter 61.0 ft. tong 3.0 ft. lateral spacing 7/32 inch perfs 3.0 ft. perforation spacing No Effluent filter ft atarm 3 ctean out 8 valve box assemblies 27.0 ft.Totat sand ABSORPTION width {minimum) 0.0 ft. upslope and sideslope (sand beyond rockbed, minimum) 17.0 ft. Downslope (sand beyond rockbed, minimum) Specific slope ratios give BERM widths(topsoit beyond rockbed)of: 4:1 upslope ratio 9 ft. upslope berm 3:1 sidestope 13 ft. sideslope berms 3:1 downslope 21 ft. downslope berm 4" inspettion pipe 18" cover on top 0 U t berm Downslo berm 21 12" cove�on sides (6�]oe�tY caP 6�6"tcI�soil� 1.2 Clean sand lift _ __ 1�8 Depth to Limitin� L.im iting Conditfon " ————________4 Ab50r tiol"►Width 27.0 ______ ______ _--—- Note: For 0 to 19b slopes, Ab�ptlon W/dth is measured from the Be�dequatty in both directions. For slopes >i9�, ,4bsorptfan N9dth is measured downhill fram the upstope edge of the Bea! Rak Bed: 21.0 yd3 or`1.4= 29 ton b inches under pipe Mound Sand: 164 yd3 or•1.4= 22g ton caltulation based on 3:1/4:1 slope from top of rockbe� Loamy Cap: 68 yd;or'1.4= 95 ton 6"deep Topsoil: 80 yd3 or`1.4= 112 ton 6"deep ! INSPECTOR CHECKLIST - mound /tiU Lakev�ew Narkway � WELL setbacl:s: 20'to pressure tested sewer line (5 psi for 15 min) 50'to everything 10d'to dispe�sal area with shallow well PROPERTY LINES secback: 10'to everything Road setback: platted: 10'prop line. Metes£c bounds: out of road easement, or outer ditch. LAKE/BLIiFF se�back: 20'for btuff. Lakes: GD_, RD_, NE Protected wetland Building setbacks: 70'for everything, 20'for dispersai area. WATER LINE under pressure se 10'to bed,tank£t sewer line. (else sewer iine � 12"betow) � Sewe�line Ft baffle connection (no 90's, 3'between 45's, slope min 1"in 8', max 2"in 8') (no depth req's, clean out every 100', Sch 40 pipe) � Septic tank and risers {water tight, insulated, proper depth, existing verified by pumping) mfg 2250 gatlons none Riser over outlet, riser over inlet or center, and 6"+inspection pipe over any remaining baffles. No effluent filter Ft alarm Dose tank risers and piping (water tight, insulated, proper depth, drainback) mfg 1300 �atlons � dose pump 36 gpm 19 head VERIFY PUMP CURVE 5.b min ON 9 hr OFF � float setting drop 7.9 inches at 25.5 gpi "DESIGNED" 5.0 inches approx float tether length 202.0 gat dose divided by gpi "INSTALLED"= inches float drop(field correctetl LABEL pump requirements and drawdawn on riser or panel Cam lock reachable from grade- 30" max. J-hook weep hote. Supply line access (no hard 90's) 2.0 inch supply pipe; Sch40, stoped 1/8"+, supparted by 4"sch40 sleeve or compacted, and buried 6"+. splice box/ controt pane[! electricat eonnectfons flow measurement: CT, ETM, time dosed, home water meter mound absorption area rough up mound rock dimensions 10,0 X 63.0 Sand tift depth 14 inches. (Jar test: 2"sand leaves< 1/8"silt after 30 min) � Absorption Sand beyond rock 0.0 upslope 17.0 downslope � Bermed topwil beyond rockbed 9 upslope 13 sideslope 21 downslope cover depth of 12-18"+ VERIFY 3 laterats (1-2'from edge of rock) 2.00 inch pipe size (Sch40 pipe Ft fittings) 3A ft tateral spacing 8 7/32 inch perforations 3.0 ft perfaration spating Air intet at end of laterals, and at top feed manifotd if necessary, VERIFY clean outs (no hard 90's) 4"inspection pipe to bottom of rock, anchored VERIFY Abandon existing system - if necessary �Re-use existing tank certifitation monitoring ptan and type wetl abandonment form - if necessary � 1 �� System Elevat�ons benchmark r J' _ _ _ _ � SHVVT Mou� r (Grade ele.watiorts are existing. If a ��my�p different finat grade is desired it should Iateral be shavm and described here.) bottom rak g�ade fa�uasiope�«k�ee► SNWT (at upsk►pe rak bed) ''^--�. �;� F- � 1 1 1 1 ` �� ,�, � � ) � � rl I I r � r r r r Sewer pipe exiting house Septic Tank Septic Tank (��naKaok) Pump Tank Grade Grade Grade Grade Pipe inlH iMet inlet Tank bottom Tank bottan Tank bottam � Loas af Soit Borinas license#810 Location or Project: Lot 7, blk 3 Borings made by: Rusty Olsan's Soi!and Perc testing 6H/2014 Classification Systsm: AASHO ; USDS•USDS-SCS X ; Unified ; Other Auger used (check two): Hand_X �or Pow�er , Flight, Bucket or Probe_X_ �oring Number_1_SurFace eleva#ion_,979.7 Mottled Soil at 1.8 feet p"-6" Daric brown loam 10y�'3/2 H20 present at_X_ IB"-i6" Brown loam 10yr4/4 ,h6"-22"Brown loam 10y►3/4 22"-28" Rusty brovm laam 10yr5/4 Soring Number_2_Surtace elevation_979.8 Mottled Soil at_1.8_feet IO"-6"Dark brown loam 10yr3/2 H20 present at_X_ �6"-18" Brown loam 10yr4/4 !16"-22" Brown loam 10yr5/4 �2"-28" Rusty brown loam 10yr5/4 �oring Number_3_Surface elevation_979.9 Mottled Soil at 2/I feet ID"-8"Dark brown loam 10yr3/2 H20 present at�X_ IB"-18" Brown loam 10yr4/4 h S"-26"Brown loam 10yr514 26"-30"Rusty brown loam 1 QyrS/4 Boring Number 4_Surface elevation_,979.6 Mvttled Soil at 2.1 feet 0"-8"Daric brown loam 10yr3/Z H20 preserrt at_X_ 8"-1 fi" Brown loam 10yr4/4 16"-24"Brown ioam 10yr5/4 24"-30"Rusty brown loam 10yr5/4 Boring Number 5_Surface elevation,_979.6 Mottled Soit at 1.8 feet 0"-6"Dark brown loam 10yr3/2 H20 present at_X� 6"-16" Brown loam 10yr4/4 1fi"-22"Brown loam 10yr5/4 22"-28"Rusty brown loam 10yr514 Boring Number 6_Surface elevation_979.9 Mottled Soil at 2.1 feet 0"-8"Dark brown loam 10yr3/2 H20 presem at,_X,_ 8"-18" Brown loam 10yr4/4 18"-26" Brown loam 10yr5/4 26"-30"Rus#y brown loam 10yr5/4 Pero�lation Test Data Sheet uc.#s�o Pereolating test readings made by: Rusty Oison's Perc.starting at 11:20 A.M. On 7/03114 Location: Lot 7, Blk 3 Hole number: 1 Date hole was prepared 7/0?J14 Depth of hole bottom_,12"_inches, Diameter of hole 6=inches. Soil data from test hole: Depth, inches Soil texture 0-8" Dark brovm loam 10y�3/2 8"-12" Brown loam 10yr4/4 Methcui of scratching side wall: Knife Depth of gravei in bottom of hole 2 inches: Date of initial water fillir� 7/02/14 depth of initial water fillirzg 12 inches above hole bottom. Method used to maintain at least i2 inches of water depth in hole for a#least 4 hours Automatic Siphon Maximum water depth above hole bottom during tests 6 inches Time Time Depth Drop in H20 Perc Rate 11:39 11:54 6" 1.2 12.5 12:01 12:1fi 6" 1.2 12.5 12:17 12:34 6" 1.2 12.5 AVERAGE PERC. RATE 12.5 MPI Percolatian Test Data Sheet Lic.#810 Percola#ing tes#readings mads by: Rusty Olson's Perc. starting at 11:20 A.M. On 7/03l14 Location: Lot 7, Bik 3 Hole numbe�: 2 Date hale was prepared 7/02/14 Depth of hole bottom_12"_inches, Diameter of hole 6"i inches. Soil data from test hole: Depth, inches Soii texture 0-8" Dark brown loam 10yr3/2 8"-12" Brawn loam 10yr414 Method of scratching side wail: Knife Dep#h of gravel in bottom of hole 2 inches: Date of initial water filling 7/02/14 depth of initial water filiing 12 inches above hole bottom. Method used to maintain at least 1 Z inches of water depth in hole for at least 4 hour^s Automatic Siphon Maximum water depth above hole bottom during tests 6 inches 7ime Time Depth Dro in H 0 Perc Rate 11:40 11:55 6" '1.5 1 p.p 12:00 12:15 6" 1.5 10.0 42:18 12:33 6" 1.5 10.0 AVEf2AGE PERC. RATE 10.0 MPI Percolation Test Data Sheet LiG.#$10 Percolating test readings made by: Rusty�1son's Perc.starting at 11:20 A.M. On 7/03114 Location: Lot 7, Bik 3 Hole number: 3 Date hole was prepared 7/02/14 Depth of hole bottom_12=inches, Diameter of ho{e 6"_inches. Soil data from test hole: Depth, inches Soil texture 0-8" Dartc brovm loam 10yr3/2 8"-12" Brown loam 10yr4l4 Method of scratching side wall: Knife Depth af gravel in bottom of hole 2 inches: Date of initial water fiiling 7102/94 depth of initial water f�iling 12 inches above hole bottom. Method used to mai�ain at least 12 inches of water de�h in hole for at least 4 hours Automatic Siphon Ma�cimum water depth above hole bottom during tests 6 inches Time Time Depth Drop in H20 Perc Rate 11:41 11:56 8" 1.5 10.0 11:59 12:14 6" 1.5 10.0 12:19 12:34 6" 1.5 10.0 AVERAGE PERC. RATE 10.0 MPI Percolation Test Data Sheet Lic.#810 Percolating test readings made by: Rusty Olson's Perc. starting at 11:20 A.M. On 7/03/14 Location: Lot 7, Bik 3 Hole number: 4 Date hole was prepaned 7/02l14 � Depth of hole bottom_12=inches, Diameter of hole_6_inches. Soil data from test hole: Depth, inches Soil texture 0-8" Daric brown loam 10yr3/2 8"-12" Brown loam 10yr4/4 Method of scratching side wall: Knife Depth of gravel in bottom of hole 2 inches: Date of initial water filling 7/02/14 depth of initial water filling 12 inches above hole bottom. Method used to maintain at least 12 inches of water depth in hole for at least 4 hours Automatic Siphon Maximum water depfh above hole bottom during tests 6 inches Time Time Qepth Drop in H20 Perc Rate 11:42 11:57 6" 2.0 7.5 11:58 12:13 6" 2.0 7.5 12:20 12:35 6" 2.0 7.5 AVERAGE PERC. RATE 7_5 MPI