The URL can be used to link to this page

Home My WebLink About1997-07-06 Septic System Design Report,S-P TESTING, INC. 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 July 6, 1997 Lauer Homes Nelson Residence Ferndale Road Orono, Henn. Cc., MN This On -Site Sewage Treatment System is Designed for a Type 1, five bedroom home, in accordance with the Minnesota Pollution Control Agency Chapter 7080 and local ordinances. The soils on this site are SCS soils mapped -HID -Hayden loam. "i r; seasonally saturated soils were located at 54" & 60" (mottled soil). The bottom of the treatment area must be located at least 3' above the seasonally saturated soils. A Standard Trench System may be installed. The soils at a depth of 24" have a percolation rate averaging 11.9 mpi. All neighboring wells are located greater than 100' away from the proposed treatment area. Keep all heavy equipment off of the proposed treatment area before and after constriction. The treatment area should 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.) 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 E INDIVIDUAL SEWAGE TREATMENT SYSTEM WORKSHEET ' FLOW A. Estimated D gpd measured _x 1S= gpd Ju:Mf' TANK VOLUME B. 1-IJ So I - 1000 gallons SOILS (Site evaluation data) C. Depth to restricting layer - S- 0" -M > �' feet D. Maximum depth of system C - 3 ft = a feet E. Percolation rate 11.01 MPI F. SSF Ljaa sq ft/gpd TRENCH BOTTOM AREA H. For trenches with 6 inches of rock below the pipe: A x F = x = _ sq ft of bottom area 1. For trenches with 12 inches of rock below the pipe: AxFx0.8n_x_x0.8=_sgftofbottom area J. For trenches with 18 inches of rock below the pipe: o A x F x 0.66 ='1S0 x J. v7 x 0.66 - J_jk sq ft of bottom area K. For trenches with 24 inches of rock below the pipe: AxFx0.6=__x_x0.6=_sgftofbottom area BED BOTTOM AREA L. For seepage beds with 6 or 12 inches of rock below the pipe; 1.5xAxF=1.5x_x^=_sgftofbottom area ROCK VOLUME IN CU FT M. Rock depth below distribution pipe plus OS foot times bottom area: M =Rock depth + 6 inches x Area (H,I,J,L,K) (_L..< +0.5ft) x2L�L=L4�,acuft ROCK VOLUME IN CU YDS N. Volume in cu ft divided by 27 M+27=cuyds1jaS+27=1&2—cuyds ROCK WEIGHT O. Cubic yards times 1.4 - tons Nx1.4=tons 0 x1.4=tons DISTRIBUTION (Check one based on slope) _ Bed (less than 6% slope) Trenches V Drop boxes (any slope) _ Distribution box (level to slightly sloping) TRENCH LENGTH P. Select trench width = ft Q. Divide bottom area by trench width: (H, I, J, or K) + P = lineal feet ILL + jLg = ;:LSQ lineal feet LAWN AREA R. Select trench spacing, center to center - <Z feet S. Multiply trench spacing by lineal feet R x Q = sq ft of lawn area 19L xi? =a4a•isgft LAYOUT (Use other side) 1. Select an appropriate scale; one square = feet. 2. Show pertinent property boundaries, right-of-way, easements. 3. Show location of house, garage, driveway, and all other improvements, existing or proposed 4. Show location and layout of sewage treatment system. 5. Show location of water supply well. 6. Dimension all set back- and separation distances. D-25 Eatioatod Sewage Flow is Gallons per Day (tpd) Numaber T'Pe I Type 11 Type III Type rV BeA0( 2 3 300 450 225 300 ISO 211 son K 4 600 375 2.56 5 750 450 294 u 6 900 525 332 U. 7 1 1050 1200 1675 600 370 406 ti Namur of ' ,._~ esky iLb Bedrooms =)! 2 or less 759 1,125 3 or 4 1.000 1,500 5 or 6 1.500 2,250 7 or 8 2.000 3.000 over 9 See rig. C-6 (x 1.5) sed or. w~ s. ^—s.I V s...... Sod T.h. hd M Faster than 0.1• Coam Sand — 0.1 toy Sand O13 120 0.1 to 5 Fine Sand 1.67 0.60 61015 Sandy Loam 1 0.79 31to45 Silt — 21M 050 46 to 6Q Osy Loam 21J O.IS Slower thr 60 — — (024) • s.a s» arm Iss r.y. a..r..r. 6 inches= 0% Reduction* 12 >tnctess:10 Reduction 18 inches= 34% Reduction 24 inches= 40% Reduction " sizing for gravelless trench T 2 inch Cover I 4 inch Pipe lC� 6-24 inch Rock Below the Pipe I Figure D-26 LL� UPS 6v � `yG4f f n i � J °eta , � fisci I o \�Pr� �F4.. a4 F 0 ® kCD a rt n c c a• N ° n c a n�� aQ� CY r rg t rr 0 ) h M1 r• fT � a m N A (p oa o (� w L ri I g o N � o � A Li v � t� 5 0 ^iE r� A �Z o• � 1 G 1- J _ 0 r Rl - �� • ' a' 4' r U1 A W N O mmImm r rrrr o � m •, !L 1�h Z O O CERTIFICATION NO.627 STATE LICENSE NO.394 PERCOLATION TEST DATA SHEET Percolation test readings made by S-P Ten in - Ine- on 6-26-97 starting at 14:45nm. Test hole location IAner Homes. Nelson Re_•idenM Ferndale Rd..Orono. Test hole number L Date test hole was prepared 6-25-97. Depth of hole bottom 24 inches. Diameter of hole li inches. DEPTH,INCHES au Topsoil dark brown loam 6" - 24" Brown loam SOIL TEXTURE Method of scratching sidewall is knife, Depth of gravel in bottom of hole is 2 inches Date and hour of initial water filling 6-25-97.4 �m 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 dphm. Maximum water depth above hole bottom during test is lk inches. Time Measurement, Time interval min inches Drop in water level, Percolation rate, inches minutes per inch i Remarks 10:35 prefill 6 10:45 1115 6 5-1/2 5.5 30 min 11:26 11:56 6 5-1/2 5.5 30 min 11:57 12:27 6 5-112 5.5 30 min Percolation rate = 5.15 minutes per inch. CERTffICATION NO.627 STATE -LICENSE NO.394 PERCOLATION TEST DATA SHEET Percolation test readings made by S-P Testiest. Inc. on 6-26-97 starting at 10e462m. Test hole location Iinner Homes. Nelson Res.,Ferndsle Rd., Orono. Test hole number I Date test hole was prepared 6-1.5-97. Depth of hole bottom 2q inches. Diameter of hole h inches. DEPTH,INCHES 0 -6" 6" - 1811 18" - 24" Topsoil dark brown loam Brown clay loam Brown loam SOIL TEXTURE Method of scratching sidewall is kn&. Depth of gravel in bottom of hole is 2 inchm Date and hour of initial water filling 6-25-214:30nm. 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 antamatk aiphnn Maximum water .;epth above hole bottom during test is h inches. Time Time interval min Measurement, inches Drop in water level, inches Peroolation rate, minutes r inch Remarks Water remaining in test hole 10:46 11:16 6 2 15 30 min 11:25 11:55 6 2 15 30 min 11:58 12:28 6 2 15 30 min I Percolation rate=15.Qtninutes per inch. CERTffICATION NO.627 STATE LICENSE NO.394 PERCOLATION TEST DATA SHEET Percolation test readings made by S-P Testing_ Inc- on ¢2¢27 starting at 10:47am. Test hole location I -suer Homes. Nelson Res., Ferndale Rd.. Orono. Test hole number 3, Date test hole was prepared 6-25-97. Depth of hole bottom V inches. Diameter of hole fi inches. DEPTH,INCHES SOIL TEXTURE 0 - 8" Topsoil dark brown loam 8" - 30" Brown loam Method of scratching sidewall is kioiitg. Depth of gravel in bottom of hole is 2� inches Date and hour of initial water filling 6-25-97. 4: m. 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 dphm Maximum water depth above hole bottom during test is !k inches. Time Time interval min Measurement, Drop in water level, inches inches Percolation rate, minutes per inch Remarks Water remaining in test hole 10:47 11:17 6 1-7/16 20.9 30 min 11:24 11:54 6 1-7/16 20.9 30 min 11:59 12:29 6 1-7/16 20.9 30 min I I Percolation rate = 20.9—minutes per inch. CERTIFICATION NO.627 STATE LICENSE NO.394 PERCOLATION TEST DATA SHEET Percolation test readings made by S-P Tes inkInc. on 6-26-97 starting at 10;48am. Test hole location i.tuer Homes. Nelson Res.. Fersdsle Rd.. Orono. Test hole number 4 Date test hole was prepared 6-25-97. Depth of hole bottom 24 inches. Diameter of hole h inches. DEPTH,INCHES M Topsoil dark brown loam $" - 24" Brown loam SOIL TEXTURE Method of scratching sidewall is ltn& Depth of gravel in bottom of hole is 2 inches Date and hour of initial water filling 6-25-97. 4:30nm_ 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 nutlmatic 90M Maximum water depth above hole bottom during test is ¢ inches. Time Time interval min Measurement, inches Drop in water level, inches Percolation rate, minutes per inch Remarks Water remaining_in test hole 10:48 11:18 6 2-1/8 14.1 30 min 11:23 11:53 6 2-1/8 14.1 30 min 12:00 12:30 6 2-1/8 14.1 30 min Percolation rate =14A-minutes per inch. CERTIFICATION NO.627 STATE L1PNSE NO.394 PERCOLATION TEST DATA SHEET Percolation test readings m, oy S-P Testing- Inc. on 6-26-97 starting at 10:492m. Test hole location Inner Homes, Nehan Res., Fernd,le Rd.. Orono. Test hole number 5, Date test hole was prepared 6-25-97. Depth of hole bottom 2A inches. Diameter of hole fi inches. DEPTH,INCHES 0 - 1211 Topsoil dark brown loam 12" - 24" Brown loam SOIL TEXTURE Method of scratching sidewall is jitn& Depth of gravel in bottom of hole is 2Jnehes Date and hour of initial water filling 6-25-97. 4r30nm. Depth of initial water filling is 12 l*nehea above the hole bottom. Method used to maintain at least 12 inches of water depth in hole for at least 4 hours is automatic dphm Maximum water depth above hole bottom during test is li inches. Measurement, Drop in water level, Percolation rate, Time Time interval min inches inches minutes per inch Remarks i 10:35 prefill 6 ! 10:49 11:19 6 4-9/16 6.6 30 min 11:22 11:52 6 4-7/16 6.8 30 min 12:01 12:31 _ 6 4-1/4 7.1 30 min Percolation rate = 6&minutes per inch. CERTIFICATION NO.627 STATE -LICENSE NO.394 PERCOLATION TEST DATA SHEET Percolation test readings made by 5=2 Testing. Inc. on 6-26-97 starting at 10;50am. Test hole location I aner HomeL Nelson Res._ Ferndale Rd.. Orono, Test hole number (L Date test hole was prepared 6-25-97, Depth of hole bottom 24 inches. Diameter of hole 6 inches. DEPTH,INCHES 0 - 10" Topsoil dark brown loam 10" - 24" Brown loam SOIL TEXTURE Method of scratching sidewall is lcn& Depth of gravel in')ottom of hole is 2 inches. Date and hour of initial water filling 645-97.4:30nm. 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 autommt s >*Fhon Maximum water depth above hole bottom during test is h inches. Time Time interval min Measurement, inches Drop in water level, inches Percolation rate, minutes per inch Remarks 10:35 prefill 6 _ 10:50 11:20 6 3-7/16 8.7 30 min 11:21 11:51 _ 6 3-1/4 3.2 1I 30 min 12:02 12:32 6 3 '/4 9.2 30min Percolation rate = 2.0lninutes per inch. S-P TESTING, INC. Steven B. Schirmers - MPCA Cart. No. 627 951 Katydid Lane NE - St. Michael, MN 55376 - (612) 497-3566 FAX - (612) 497-5011 State License #394 Lauer Homes Nelson Residence Femdale Road Orono, Henn. Co., MN Borings completed on 6-25-97, with a hand bucket auger. BORING NUMBER 1- Elev.1050.2 - NO MOTTLED SOIL PRESENT IN THE BORING. 0 - 6" Topsoil dark brown loam 10YR 3/2 6" - 28" Brown loam 10YR 5/4 28" - 64" Brown sandy loam 10YR 6/6 64" - 68" Brown loamy medium sand 10YR 6/6 68" - 76" Brown medium sand 10YR 6/4 BORING NUMBER 2- Elev.1045.7 - MOTTLED SOIL AT 5 - no standing water present in the boring. 0 - 6" Topsoil dark brown loam 10YR 3/2 6" - 18" Brown Gay loam 10YR 5/4 18" - 36" Brown loam 10YR 5/6 36" - 60" Brown sandy loam w/layer medium sand 10YR 6/6 60" - 84" Rusty brown sandy loam 10YR 6/3 - mottles 7/1,6/8 BORING, 'RER 3- Elev.1043.3 - NO MOTTLED SOIL PRESENT IN THE BORING. 0 - 8" -,il dark brown loam 10YR 3/2 8" - 54" Brow, '-wam 10YR 5/6 54" - 68" Brown r odium sand 10YR 6/4 68" - 84" Olive brm- loam 10YR 6/3 n ' I soil borings cont'd BORING NUMBER 4- Elev.1050.2 - MOTTLED SOIL AT 5' - no standing water present in the boring. 0 - 6" Topsoil dark brown loam 10YR 3/2 6" - 38" Brown loam 10YR 5/6 38" - 60" Brown sandy loam 10YR 6/4 80" - 84" Rusty brown loam 10YR 6/3 - mottles 7/1,6/8 BORING NUMBER 5- Elev.1048.5 - MOTTLED SOIL AT 4-1/2' - no standing water present in the boring. 0 - 12" Topsoil dark brown loam 10YR 3/2 12" - 48" Brown loam 10YR 5/6 48" - 54" Brown day loam 10YR nr6 54" - 64" Rusty brown sandy Gay loam 10YR 6/4 - mottles 6/8 64" - 68" Rusty brown sandy loam 10YR 6/4 - mottles 6/8 68" - 78" Rusty gray brown loamy medium sand 10YR 6/5 - mottles 7/1,6/8 BORING NUMBER 6- L 3v.1045.9 - NO MOTTLED SOIL PRESENT IN THE BORING. 0 - 10" Topsoil dark brown loam JYR 10" - 36" Brown yam 10YR 5/6 36" - 66" Li J h' ,wn loam 10YR 6/4 66" - 80" Light Urown sandy loam 10YR 6/4 2 �m � mn cp rn myypp ter. C<2i � _----_-L�J N I FJ - -r--'�-- g rr+lAr r g� o°� Z 0 �_< '< O 00 < X<2 xr O� m �� ZI4 ul a u re N x l N< 9 zZz M- coot CAI<fD -IOzm momr OD Na 0Zs-"-I AllTIN ogi 0 Ctmna0 „o� 2oz m Ayw AK -n y>- 1 L__1 OD aZ'z t no-4 m_g,lm 0,0 fnom Z O 1 v< an O_ x=1 m A�A0z V1 m 1 r- o c < r,- -r--r-- -�- -4c rnD0m10 IA< -V �aD m m In \ I I Z O< '"la+l S v0 O2mmr �m� CD Moo y 1 r Ill Xn y cv -'W"a D r -4 C rr> �-iX�� r mi<< N < mm 1 O �iA gym.. �Or J, �Z-I n �< mi DDmD 'lM Z0-4 Z o m o o r�N i -� om Om= EO n 7 = NO FILL 6' „': i�;' • • TO ALLOW FOR �r SETTLING ++ti. .► r` 4-- }'--•-GRASS COVER ~'^.' ,�•:� t,! .:i. l•- ---r ---/� 0' TO 341 OF SOIL :!yL:.0 ,A ,/ COVER ABOVE ROCK .I� `' •- ---r--- R• DID. .ti � i,� •a. ( .i '' I �/' CLEAN ROCK �.:►r., , J ?`'' •� `--- -- 4'-aLAYER Of 1NC0MP TtO .Jk'� I t..: w' IIAY K 41 RAW CMIV L" �si�T / 'r� :c0 .• �' �;' RED ROSIN PAPER OR GEOTC>�ILIE FABRIC I� --TRENCII BOTTOM MUST BE LEVEL THROUGHOUT LENGT►1 •y �t .--�--•—� .._�i10�..-2' MINIMUM ROCK COVER ABOVE PIP[ •�:':•• .�^� -`--- [.ti-'--6' MINIMUM ROCK DEPTH BLOW PtP( 2•' MAXIMUM ROCK DEPTH BELOW PIPE -4' DIA. RIGID PERFORATED PLASTIC PIPE Willi ONC nOW 01' Alf % / , HOLES ALONG BOTTOM � 3 /'. \�� I ,'// -••—WATER TABLE OR IMPERVIOUS LAYER SUCH AS CLAY►AN, ROCK. ETC. TRENCH ROCK COVERED WITH PERMEABLE SYNTHETIC FABRIC OR 4' LAYER OF MARSH MAY OR ►IPE TO NEXT STRAW COVERED W TN UNTREATED BUILDING 4' DIAMETER INSPECTION ET DROP X PAPER (RED ROSIN - WELL WITH CAP EARTH BACKFILL AT LE T ph I 5' ABOVE T01 OF ROCK AT LEAST B' DEPTH OF CLEAN ROCK 3/4' TO 21/i DIA. SEE NOTE S. DROP BOX i- MAXIMUM LENGTH • 100 FEET OVERFILL NOTES: I. BOTTOM OF TRENCH MUST BE LEVEL, TOP OF TRENCH �4 TO i INCHES ROCK MUST BE LEVEL. _INSPECTION \W LL 2, SlO►E ON DISTRIBUTION PIPE IS :ETWEEN LEVEL BACKFILL 1 s•To 2• of ANO • INMES PER 100 EET MRECOMENDED SLOPE IS LEVEL. SOIL BACKFILL 3. �l DISTRIBUTION PIPE CAN BE PERFORATED PUATTIC INSTALLED WITH • • DEPTH OF ONE ROW OF HOLES ALONG THE PIPE BOTTOM. PIPE MUST HAVE A BEARING STRENGTH OF i•� . . ROCK ABOVE PIPE AT LEAST 1000 LB/FT. ROCK • AT LEAST B' OF 4. MAINTAIN NATURAL SOIL STRUCTURE IN THE 1 ROCK BELOW TRENCH SURFACES IN CONTACT WITH ROCK. -1 PIPE SEE NOTk' �. 5. WHEAt TREES ARE PRESENT OR LIKELY TO BE PRESE12 IB' TO 36' --« THE E OF ESYSTEM. OIMOCK IWCHES MUST BE BE PLACED UNDER THE DISTRIBUTION PIPE. TRENCH CONSTRUCTION DETAILS INLET 9, `VERTICAL SID4ALL SEPTIC TAK --,,-FINISHED GRADE k. AT LEAST 6" TO 12" SOIL AT _LEAST 4' DIA. -1- COVER 4 DIA.-�, AT LEAST I" AT LEAST I" U6 - AT LEAST 3" DIMENSI N WIUT-H. W FOR TANKS WITH VERTICAL SIDES 24 MINIMUM LENGTH•L 2 TO 3 TIMES THE WIDTH 60' MINIMUM _DIAMETER DEPTH 0 _ 30' MINIMUM• 79* MAXIMUM A 9 0.2 D r-- M i - 6 MINIMUMi 0.2 D MAXIMUM 0.4 0 C 6 - -� ---- --AT LEAST 4 FEET--- NolEs: I. SNuIUIYIECSAtLfAAIlwCI1ESNDOWIFIt 4. ►wale)IEOOvEn$PKI.IFLOCAIEDVAIM411W-Jlfs ; 3. IIEPE UVJL WOK On IA31 IE UNRIOLES.WVASI filElh•IA KAI a WRI IN MIT 001E0 OF TIC SUMACE fo".teJON NV LOCAI F D YA I I IN 0 FEE 1 Of ALL IN* 11 E DOW I ► A I DE KDUE 01O NEv[Fll AOCEM WALLS. 0 GCPUN•-..N U4IAW_1aj MEENEID OF NL(I PPF. AMU 3. AN FIIll-EC110NMPE OF AT LEAS 1400.Y1EINAW1E11 NEB *STPOINI ON WfLE?IALLLOFNOLESSIIIN10 NGES On AwmME III MLL IE LOCAL EOCNEnOOIN IIE IFEET on NO WILE n"III NOES, NE)OWLEI OCVKXR. LIE CEfl1EJILNE OF 11 V. FLR101011I s FOn 110102fm IK CK1dWW_4. 1 AWt 01AETIMM A 130. 1 SO Pf'EO YNLL DE I I E SAW AS I I E CC" I Cn I NE DIF INE AND WAFHSION C M 0350. ONFLE 0ISNNDS 01l 0ANIIA111 LEES AIIrp WW'ECION N'C IA/Sl ME LOCAIEU K I"CEN TIE MET NlNull EI DN ILES A OUTLET or CLEAN OUT TANK WHEN: TC IS 3' OR LESS OR 'B' IS 12" OR LESS BLACK COLOR DISTINGUISHES SLUDGE LAYIR FROM LIOUID V MEASURE SCUM AND SLUDGE ACCUMULATIONS IN THE SEPTIC TANK