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HomeMy WebLinkAbout03-04-2020 Septic DesignJoseph Olson D.B.A. Rusty Olsonas--Soil and Percolation Testing Joseph J. Olson--MPCA License #810 11481 Riverview Rd. NE, Hanover, MN 55341 (763) 498-8779 Fax (763) 498-8290 Revised November 18, 2019 Norton Homes 775 Lakeview Parkway Orono, Hennepin County 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 periodically saturated soils were located at 18-20 inches (mottled soil). Due to the periodically saturated soils, a pressurized mound system with 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 system is designed with 6 inches of rock. A 2250 -gallon combination septic tank or its equivalent is designed for this site. All tanks need to be insulated if there is less than two feet of cover over the top of the tanks. Clean outs must be installed on the end of the laterals for maintenance. Use 7132 -inch perforations on the laterals A 1250 -gallon 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 weatherproof enclosure. A warning device must be installed with light 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, running time clocks or electronically controlled dosing. Keep all heavy a ui ment off of the proposed treatment areas before during and after construction. The area around both sites must be fenced off by the contractor before any construction begins. 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 water and toilet tissue should be disposed of into the septic tanks. Iron filters cannot go into the septic sstem. Garbage disposals are not recommended. Additives must not be used they may cause harmful damage to your septic system. It is recommended that you pump the septic tanks every two years. Sincerely, Joseph J. Olson MOUND SYSTEM DESIGN TYPe _L• � Bedroom Average percolation rate ►j),J( 2 "Otem 3z> 130 91� 5 4iws �q 7-0 gaVdaY _�3D sci.ft. OfUeeatrnerrt area 6a�L VIO ft_ Width = eft, length of heel area Side slope rUO2_ if to 1 x ?. L height = 11 €t. x i3 ft. Lawn area. ,,_ TS --6r_", a W 0WW Lf -1 Z N % SLOT SOIL 008MG EL"AW08 513�76� ?f,G 0 MMOAM THJ3 EL 7 Stan W Tam 9L -ILI .`lam waftS$ -i71.s' JR_"4MWd0& 192WEROWN 49MIR Clean rock needed plus 1 co.yds. Coarse washer) sa3S cu. Yds. Average sand depth X15' EO! fta�l waft Sandy 1oa a cu.yds. , Topsoi I V 8'S- r -u -Yds. plus 5 a6 cu. Yds. Number of tanks, l�tanlc lEu eals., 20d tank _____ gaK, Pmp chamber capacity patiJ gaft- i� Oak. j100 lineal feet of DL ` dia. Suppky pipe, fines! feet needed � it _ D utron Plpe ! "dra_ IL lineaMet, 7'^ � db_ PerForatjnns '2� "apart Flog' set at L11— 1 9 _ ga€s., � times per day Pump curve ruin_ �- i feet head pressure. E�iT11�67�: NvRTa,.i >�,r�c D9ft."jjjY_(_1, Ph. 763-498.8779 Ruf .�"l�'!d Pgl�'aao��l'1Y8� 2011 purple code ,Mound Design www.5epiicResource.corrt !vers 352) Property Owner: Norton Homes Site Address: 775 Lakeview Pkwy Comments: Date: 11/18/2019 PID: 0611723430013 instructions: = = enter data = adjust if desired = = computer calculated - DO NOT CHANGE! 1)bedroom Type Residential System 2) 750 GPD design flow 3) Yes Garbage disposal or pumped to septic 50% larger tank with multiple comp/tanks 4) 2250 Gal Septic tank (code minimum) 2250 Gal Septic tank (design size / LUG req'd) Tank options: none 5) 1.2 GPD/ft2 mound sand loading rate contour loading rate of12 req's a min b2.5 ft. long rockbed 6) 10.0 ft rockbed width 63.D ft rockbed length 7) 3.0 ft lateral spacing 3.0 ft perforation spacing (maximum of 3 for both) end feed manifold connection 8) i ' ! laterals 61.0 feet long 21.0 perfs / lateral 63 perfs total (1 /2 a perf means the first perf starts at the middle feed manifold) 9) 7132 inch perfs at feet residual head gives 0.56 gpm flow rate per perforation for this perf size 8t spacing, Et pipe size on line 12, max perfs/lateral = F-3071, line #8 must be less ? OK 10) 4.0 doses per day (4 minimum) l 17 188 gallons per dose (treatment volume) 2.00 5x 12) 2.00 inch diameter laterals must be used to meet "4x pipe volume" requirement 2.00 3x 13) 63 feet of 2.0 inch supply line leads to =gallons of drainback volume (Tip: "top feed" manifold to control the drainback) 14) 199 gallons TOTAL pump out volume (treatment + drainback) ,$) P3q6GPM feet vertical lift from pump to mound laterals, leads to a: 16) @ 29 feet of head, Pump requirement (note: >50gpm may require an extra 3-6' of head) 17) 750 gal Dose tank (code minimum) 1250 gal Dose tank (design size / LUG req'd) at 25.49 gpi leads to a is) 7.8 inch swing on Demand float, or timed dosing of5.5 min ON (confirm pump rate with drawdown (this delivers Average flow, =70% of Peak design flow)hrs OFF test and adjust as necessary) l4)Tinches inches from bottom of tank to "Pump OFF" float 2a) inches from bottom of tank to "Pump ON" float, orP33 inches to "Timer ON" float if time dosed 2l) from bottom of tank to "Hi Level" float, or inches to "Hi Level" float if time dosed 22) 664 gallons reserve capacity (after High Level Alarm is activated) 0.45 gpd/ft2 Absorption area Soil Loading Rate, which gives a mound ratio of 2.7 (minimum) (this must match the soil boring log) desired mound ratio 1 2.7 15 percent site slope (0-20% range) 15 (% downslope site slope, if different than upslope) 18 inches, or t.5 ft. to Redox or other limiting condition (need at least 12" to be a Type 1) Treatment zone contains=inches of 0% soil credit, and =inches of 50% soil credit. Giving a: 18 inch, or 1.5 ft. Sand Lift Mound CRITICAL FOR FUTURE CERTIFICATIONSH! 27.0 ft.Total ABSORPTION width (with sand beyond rockbed as follows:) 0.0 ft. upslope and sideslope 17.0 ft. Downslope Individual slope ratios give BERM widths (topsoil beyond rockbed) of: 4;1 upslope ratio 9 ft. upslope berm 3:1 sideslope 15 ft. sideslope berms 3;1 downslope 30 ft. downslope berm Overall Dimensions: iEl ft. wide by 63.0 ft. long Rock bed ft. wide by 1 93 ft. long Mound footprint 4" inspection pipe ��� 18" corer on top berm I I .I � 6 Downslope berm 30 ``-� 12" cover on sides (6" loamy cap &6" topsoil) 1.5 Clean sand lift 1.5 Depth to Limiting Limiting Condition ---_—__ Absorlotion Width 127.0 1'—" _—__ --_— Note: _ For 0 to 1 slopes, .4bsorptlon Width is measured from the f3edequalty in both directions. For slopes >1%, Absarptron Width is measured downhill from the upslope edge of the Bed. Rock Bed: 10.0 ft. by 63.0 ft. by inches under pipe, plus 20% gives =yd-' or *1.4= 29 ton Mound Sand: (note: volume is based on 3:1/4:1 slope from top of rockbed, Exchange sand for loamy cap if desired) 24.4 up + 143.1 downslope + 17.8 ends + 52.5 under rock =285 yd3 or *1.4m 399 ton plus 20% Loamy Cap: 45 ft. by 89 ft. 6" deep, plus 20% gives Topsoil: 49 ft. by 93 ft. 6" deep, plus 20% gives I hereby certify that I have completed this work in accordance erSignature 89 yd'or*1.4= 125 ton 102 yd'or*1.4= 143 ton all applicable ordinances, rules and taws. Rusty Olson"s Soit lx Perc 810 Company 11/18/2019 cicenseff uate Installer Summary 2250 gallon Septic tank (minimum) Tank options: none :)Wb Larger Lanrc witn rnuLuIpre comp/ Lancs 3250 gallon Dose tank (minimum) at 25.49 gpi 36 1 GPM @ 29 ft. of head, Pump required 7.8 inch swing on Demand float which translates to roughly 4.9 inches of float tether length if time dosing is required -->5.5 minutes ON time lx =hours OFF time "23inches inches from bottom of tank to "pump ON" float, or 12 inches to "timer ON" float from bottom of tank to "Hi Level Alarm" or F33inches to "Hi level alarm" if time dosed 63 ft. of 2.0 inch supply line with end feed manifold connection (Tip: "top feed" manifold to control drainback) 18 inch, or 1.5 ft. Sand Lift Mound 10.0 ft. wide by 63.0 ft. long Rock bed 3 laterals 2.00 inch diameter 61.0 ft. long 3.0 ft. lateral spacing 7/32 inch perfs 3.0 ft, perforation spacing No Effluent filter Et alarm 3 clean out Et valve box assemblies 27.0 ft.Total 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 (topsoil beyond rockbed) of: 4:1 upslope ratio 9 ft. upslope berm 3;1 sideslope 15 ft. sideslope berms 3;1 downslope 30 ft. downslope berm berm _ � 1.5 —d�imIling Canditfon — - 4" inspection pipe r— 18" cover on top 12" cover on sides (6" loamy cap &6" topsail) Clean sand lift Depth to Limiting ` —Absorption Width z7.0 9--- -�--- _`�_w Note: For 4 to 1 slopes, Absorption Width is measured from the Bedequally in both directions. For slopes 31%, Absorption width is measured downhill from the upslope edge of the Bed. Rock Bed: 21.0 yd or*1.4= 29 ton Mound Sand: 285 yd or *1.4= 399 ton Loamy Cap: 89 yd3 or *1.4= 125 ton Topsoil: 102 yd or *1.4= 143 ton inches under pipe calculation based on 3:1/4:1 slope from top of rockbe, 6" deep 6" deep INSPECTOR CHECKLIST - mound //5 Lakeview Pkwy WELL setbacks: 20' to pressure tested sewer line (5 psi for 15 min) 50' to everything 100' to dispersal area with shallow well PROPERTY LINES setback: 10' to everything Road setback: platted: 10' prop line. Metes Et bounds: out of road easement, or outer ditch. LAKE / BLUFF setback: 20' for bluff. Lakes: GD _, RD —, NE . Protected wetland _ Building setbacks: 10' for everything, 20' for dispersal area. WATERLINE under pressure sc 10' to bed,tank Et sewer line. (else sewer line > 12" below) Sewer line Et baffle connection (no 90's, 3' between 45's, slope min 1" in 8', max 2" in 8) (no depth rep's, clean out every 100', Sch 40 pipe) 0 Septic tank and risers (water tight, insulated, proper depth, existing verified by pumping) Mfg2250 gallons 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_ 1250 gallons ❑ dose pump 36 gpm 29 head VERIFY PUMP CURVE 5.5 min ON 9 hr OFF ❑ float setting drop 7.8 inches at 25.5 gpi "DESIGNED" 4.9 inches approx float tether length 199.0 gal dose divided by gpi "INSTALLED" = inches float drop (field corrected LABEL pump requirements and drawdown on riser or panel Cam lack reachable from grade - 30" max. J -hook weep hole. Supply line access (no hard 90's) 2.0 inch supply pipe: Sch40, sloped 1/8"+, supported by 4" sch40 sleeve or compacted, and buried 6"+. splice box / control panel / electrical connections flow measurement: CT, ETM, time dosed, home water meter mound absorption area rough up mound rock dimensions 10.0 X 63.0 Sand lift depth 18 inches. (Jar test : 2" sand leaves < 1/8" silt after 30 min) 7 Absorption Sand beyond rock 0.0 upslope 17.0 downslope Bermed topsoil beyond rockbed 9 upslope 15 sideslope 30 downslope cover depth of 12-18"+ VERIFY 3 laterals (1-2' from edge of rock) 2.00 inch pipe size (Sch40 pipe €t fittings) 3.0 ft lateral spacing e 7132 inch perforations 3.0 ft perforation spacing Air inlet at end of laterals, and at top feed manifold 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 certification monitoring plan and type well abandonment form - if necessary WO)Ioq NUel jolui wolloq 4ue1 ;alul tuolloq � Uel }alul adid apeJE) apejo epee apeig jue j dwnd Paige idde �,} ue-L:)i;das i ue1:q daS asnoy guilixa ad id janna5 jpaq naoi adolsdn ;t!) 1MHS (paq 4ioi adalsdn le) ap21g 17oJ LuoUoq leialel deo Aweol iMHS - - - - (-aaau pagpsap pue umogs aq pinogs 3! paiisap sw opejS ung juaia.4 p e41 -Oul1slxa We suoiJenala apea!)) jaeuagauaq SUOIJeAa13 W@JSAS WITM (-aaau pagpsap pue umogs aq pinogs 3! paiisap sw opejS ung juaia.4 p e41 -Oul1slxa We suoiJenala apea!)) jaeuagauaq SUOIJeAa13 W@JSAS Property Owner / project: Property Address / PID: Soil Observation Log Owner Information Norton Homes 775 Lakeview Pkwy www.SeptieResource.com vers 12.4 Date 6/112014 11/07/19 Soil Survey Information ❑ refer to attached soil survey Parent matl's: [] Till ❑ Outwash ❑ Lacustrine ❑ Alluvium ❑ Organic ❑ Bedrock landscape position: ❑ summit ❑ Shoulder ❑ Side slope ❑ Toe slope soil survey map units: L41E slope 15 % direction- Linear -convex Soil Log #1 ❑ Boring ❑ Pit Elevation 977.0 Depth to SHWT 18 Inches Depth (in) Texture fragment % matrix color redox color consistence grade shape 0-6 Topsoil <35 1Oyr3/2 Friable Moderate Blocky 6-18 Loam <35 10yr4/4 Friable Strong Block, 18-24 Clay Loam <35 10yr5/4 I0y4/8,1-6/10y Firm Strong Blocky <35 loose loose single gain 35-50 friable weak granular blocky >50 firm moderate Prismatic platy rigid strong massive <35 loose loose ,migle grain 35-50 friable weak granular blocky >50 firm moderate Prismatic platy rigid strong massive Continents: "/"/5 Lakeview Pkwy Soil Log #2 Boring d pit Elevation 977.2 Depth to SHWT 20 Inches Depth (in) Texture fragment % matrix color redox color consistence grade shape 0-6 Topsoil <35 10yr3/2 Friable Moderate Blocky 6-20 Loam <35 10yr4/4 Friable Strong Blocky 20-26 Clay Loam <35 10yr5/4 10y4/8,1-6/I0y Firm Strong Blocky <35 loose loose single grain 35-50 friable weak granular blocky >50 firm moderate prismatic platy rigid strong massive <35 loose loose single grain 35-50 friable weak granular blocky >50 firm moderate prismatic platy rigid strong massive 775 Lakeview Pkwy Soil Log #3 0 Boring ❑ Pit Elevation 971.7 Depth to SHWT 20 inches Depth (in) Texture fragment % matrix color redox color consistence grade shape 0-8 Topsoil <35 10yr3/2 Friable Moderate Blocky 8-14. Loam <35 1dyr4/4 Friable Strong Blocky 14-20 Clay Loam <35 10yr5/4 Friable Strong Blocky 20-26 Clay Loam <35 10yr5/4 IOy4/8,1-6/10y Firm Strong Blocky <35 loose loose single grain 35--50 friable weak granular blocky >50 firm moderate prismatic platy rigid strong massive I hereby certify this work was completed in accordance with MN 7080 and any local reqs. Rusty 41son's Soil & Perc 810 esigner Signature Company License Lakeview Ykwy Soil Log #4 ❑ Boring ❑ pit Elevation 971.6 Depth to SHWT 20 Inches Depth (in) Texture fragment % matrix color redox color consistence grade shape 0-8 Topsoil <35 10yr3/2 Friable Moderate Blocky 8-14. Loam <35 10yr4/4 Friable Strong Blocky 14-20 Clay Loam 35 IOyr5/4 Friable Strong Blocky 20-26 Clay Loam <35 1 Oyr5 /4 l Oy4/8,1-6/10y Firm Strong Blocky <35 loose loose Single grain 35-50 friable weak granular blocky >50 firm moderate prismatic platy rigid I strong massive 775 Lakeview Pkwy Soil Log #5 0 Boring ❑ pit Elevation 977.0 Depth to SHWT 20 Inches Depth (in) Texture fragment % matrix color redox color consistence grade shape 0-6 Topsoil <35 10yr3/2 Friable Moderate Blocky 6-20 Loam <35 10yr4/4 Friable Strong Blocky 20-26 Clay Loam <35 10yr5/4 10y4/8,1 -6/10y Firm Strong Blocky <35 loose loose single grain 35-50 friable weak granular blocky >50 firm moderate prismatic platy rigid strong massive <35 loose loose single grain 35-50 friable weak granular blocky >50 firm moderate prismatic platy rigid I strong massive 1 hereby cern is work was completed in accordance with MN 7080 and any local reg's. Rusty Olson"s & Pere Testing 810 —JIesigner Signature Company License Property Owner/ project: Property Address / FID: Soil Observation Log Owner Information Norton Homes 775 Lakeview Pkwy www.SepticResource.com vers 12.4 Date 6/112014 11107/19 Soil Survey Information ❑ refer to attached soil survey Parent matl's: ❑ Till ❑ Outwash ❑ Lacustrine ❑ Alluvium ❑ Organic ❑ Bedrock landscape position: ❑ summit ❑ Shoulder ❑ Side slope ❑ Toe slope soil survey map units: L41 E slope 15 % direction- Linear -convex Soil Log #6 0 Boring ❑ Pit Elevation 971.5 Depth to SH'WT 20 Inches Depth (in) Texture fragment %a matrix color redox color consistence -rade shape 0-8 Topsoil <35 10yr3/2 Friable Moderate Blocky 8-14. Loam <35 10yr4/4 Friable Strong lfiockN 14-20 Clay Loam <35 10yr5/4 Friable Strong Blocky 20-26 Clay Loam <35 10yr5/4 1oy4/8,1-6/1oy Firm Strong Blocky <35 loose loose single grain 35-50 friable weak granular blocky >50 firm Moderate prismatic platy rigid strong massive Comments: 115 Lakeview Pkwy Soil Log 97 ❑ Boring ❑ Pit Elevation 971.6 Depth to SHWT 20 Inches Depth (in) Texture fragment % matrix color redox color consistence grade shape 0-8 Topsoil <35 10yr3/2 Friable Moderate Blocky 8-14. Loam <35 10yr4/4 Friable Strong Blocky 14-20 Clay Loam <35 10yr5/4 Friable Stron- Blocky 20-26 Clay Loam <35 10yr5/4 10y4/8,1 -6/10y Firm Strong Blocky <35 loose loose single grain 35-50 friable weak granular blocky >50 firm moderate prismatic platy rigid strong massive 775 Lakeview Pkwy Soil Log #8 0 Boring ❑ Pit Elevation 971.6 Depth to SHWT 20 Inches Depth (in) Texture fragment % matrix color redox color consistence grade shape 0-8 Topsoil <35 10yr3/2 Friable Moderate Blocky 8-14. Loam <35 10yr4/4 Friable Strong Mock, 14-20 Clay Loam -35 10yr5/4 Friable Stranv BiOAN 20-26 Clay Loam <35 10yr5/4 10y4/8,1 -6/10y Firm 5tron lflock% <35 loose loose single grain 35=-50 friable weak granular blocky >50 firm moderate prismatic platy rigid I strong I massive 1 hereby certify this work was completed in accordance with MN 7080 and any local reqs. Rusty Olson's Soil & Perc 810 resigner Signature Company License # 775 Lakeview P Soil Log 98 ❑, Boring ❑ Pit Elevation 971.6 Depth to SHWT Inches Depth (in) Texture fragment % matrix color redox color consistence grade shape 0-8 Topsoil <35 10yr3/2 Friable Moderate Block 8-14, Loam <35 10yr4/4 Friable Strong Blocky 14-20 Clay Loam <35 10yr5/4 Friable Strong Blocky 20-26 Clay Loam <35 10yr5/4 10y4/8,1 -6/10y Firm Strong Blocky <35 loose loose single grain 35-50 friable weak granular blocky >50 firm moderate prismatic platy rigid I strong massive I 775 Lakeview Pkwy Soil Log # 21 Boring ❑ Pit Elevation Depth to SHWT Inches Depth (in) Texture fragment % matrix color redox color consistence grade shape <35 loose loose single grain 35-50 friable weak granular blocky >50 firm moderate prismatic platy rigid strong massive <35 loose loose single grain 35-50 friable weak granular blocky >50 firm moderate prismatic platy rigid strong massive <35 loose loose single grain 35-50 friable weak granular blocky >50 firm moderate prismatic platy rigid strong massive <35 loose loose single grain 35-50 friable weak granular blocky ?50 firrn moderate prismatic platy rigid strong massive <35 loose loose single grain 35-50 friable weak granular blocky >50 firm moderate prismatic platy rigid Istrong massive I hereby certify this work was completed in accordance with MN 7080 and any local reqs. Rusty Olson's & Perc Testing 810 esigner Signature Company License # UNIVERSITY OF MINNESOTA Septic System Management Plan for Above Grade Systems The goal of a septic system is to protect human health and the environment by properly treating wastewater before returning it to the environment. Your septic system is designed to kill harmful organisms and remove pollutants before the water is recycled back into our lakes, streams and groundwater. This management plan will identify the operation and maintenance activities necessary to ensure long- term performance of your septic system. Some of these activities must be performed by you, the homeowner. Other tasks must be performed by a licensed septic maintainer or service provider. However, it is YOUR responsibility to make sure all tasks get accomplished in a timely manner. The University of Minnesota's Septic System Owner's Guide contains additional tips and recommendations designed to extend the effective life of your system and save you money over time. Proper septic system design, installation, operation and maintenance means safe and clears water! Property Owner Email Property Address 775 Lakeview Parkway Property ID 0611723430013 System Designer Joseph J. Olson Contact Info 763-498-8779 System Installer Contact Info Service Provider/Maintainer Contact Info Permitting Authority Contact Info Permit 4 Date Inspected Deep this Management Plan with your Septic System Owner's Guide. The Septic System Owner's Guide includes a folder to hold maintenance records including pumping, inspection and evaluation reports. Ask your septic professional to also: • Attach permit information, designer drawings and as -built of your system, if they are available. • Keep copies of all pumping records and other maintenance and repair invoices with this document. • Review this document with your maintenance professional at each visit; discuss any changes in product use, activities, or water -use appliances. For a copy of the Septic System Owner's Guide, visit www.bookstores.umn.edu and search for the word ``septic" or call 800-322-8642. For more information see http://septic.umn.edu Version: August 2015 - 1 - UNIVERSITY OF MINNESOTA Septic System Management Plan for Above Grade Systems Your Septic System 11 —� Manhole i Inspectien pipe Fnun pump rank ' --vmfaaw Pipe Crams Ktion of mound 0a1r4Mrion meda InspeaiOn pipe' ri Topsoil _ vegetadcn_ _ ' : Sand- Srp. r ol�v - - - r llBpxeEFasl7 _ eta Lgntngporidirr yr Septic System Specifies System Type:•� I ()11 ®III QIV* 0 V* F-� System is subject to operating permit* (Based on MN Rules Chapter 7080.2200 — 2400) ❑ System uses UV disinfection unit* *Additional Management Plan required Type of advanced treatment unit Dwelling Type Well Construction Number of bedrooms: 5 Well depth (ft): New construction System capacity/ design flow (gpd): 750 ❑ Cased well Casing depth: Anticipated average daily flow (gpd): 500 ❑ Other (specify): Comments Distance from septic (ft): Is the well on the design drawing? OY e N Business?: a Y e N What type? Soil Treatment Area (STA) Septic Tank ❑ First tank. Tank volume: 2250 gallons ❑ Pump Tank 1250 gallons Does tank have two compartments? (F)Y 0 N ❑ Effluent Pump make/model: ❑ Second tank Tank volume: gallons Pump capacity GPM ❑ Tank is constructed of Concrete TDH Feet of head ❑ Effluent screen:a Y e N Alarm ()Y e N ❑ Alarm location Soil Treatment Area (STA) Mound/At-Grade area (width x Iength): 49 ft x ss ft 1:1 Inspection E] Cleanouts Rock bed size (width x length): 10 ft x 63 ft ports Location of additional STA: See drawing � Surface water diversions Type of distribution media: Rock Additional STA not available ❑ -2- UNIVERSITY Septic System Management Plan OF MINNESOTA for Above Grade Systems Am� Homeowner Management Tasks These operation and maintenance activities are your responsibility. Chart on page 6 can help track your activities. Your toilet is not a garbage can. Do not flush anything besides human waste and toilet paper. No wet wipes, cigarette butts, disposal diapers, used medicine, feminine products or other trash! The system and septic tanks needs to be checked every 24 months Your service provider or pumper/maintainer should evaluate if your tank needs to be pumped more or less often, Seasonally or several times per year • Leaks. Check (listen, look) for leaks in toilets and dripping faucets. Repair leaks promptly. • Soil treatment area. Regularly check for wet or spongy soil around your soil treatment area. If surfaced sewage or strong odors are not corrected by pumping the tank or fixing broken caps and leaks, call your service professional. Untreated sewage may make humans and animals sick. Keep bikes, snowmobiles and other traffic off and control borrowing animals. • Alarms. Alarms signal when there is a problem; contact your service professional any time the alarm signals. • Lint filter. If you have a lint filter, check for lint buildup and clean when necessary. If you do not have one, consider adding one after washing machine. • Effluent screen. If you do not have one, consider having one installed the next time the tank is cleaned along with an alarm. Annually • Water usage rate. A water meter or another device can be used to monitor your average daily water use. Compare your water usage rate to the design flow of your system (listed on the next page). Contact your septic professional if your average daily flow over the course of a month exceeds 70% of the design flow for your system. • Caps. Make sure that all caps and lids are intact and in place. Inspect for damaged caps at least every fall. Fix or replace damaged caps before winter to help prevent freezing issues. • Water conditioning devices. See Page 5 for a list of devices. When possible, program the recharge frequency based on water demand (gallons) rather than time (days). Recharging too frequently may negatively impact your septic system. Consider updating to demand operation if your system currently uses time, • Review your water usage rate. Review the Water Use Appliance chart on Page 5. Discuss any major changes with your service provider or pumper/maintainer. During each visit by a service provider or pumper/maintainer • Make sure that your service professional services the tank through the manhole. (NOT though a 4" or b" diameter inspection port.) • Ask how full your tank was with sludge and scum to determine if your service interval is appropriate. • Ask your pumper/maintainer to accomplish the tasks listed on the Professional Tasks on Page 4. MIE UNIVERSITY Septic System Management Plan OF MINNESOTA for Above Grade Systems Professional Management Tasks These are the operation and maintenance activities that a pumper/maintainer performs to help ensure long- term performance of your system. At each visit a written report/record must be provided to homeowner. Plumbing/Source of Wastewater Review the Water Use Appliance Chart on Page 5 with homeowner. Discuss any changes in water use and the impact those changes may have on the septic system. Review water usage rates (if available) with homeowner. Septic Tank/Pump Tanks • Manhole lid. A riser is recommended if the ltd is not accessible from the ground surface. Insulate the riser cover for frost protection. • Liquid level. Check to make sure the tank is not leaking. The liquid level should be level with the bottom of the outlet pipe. (If the water level is below the bottom of the outlet pipe, the tank may not be watertight. If the water level is higher than the bottom of the outlet pipe of the tank, the effluent screen may need cleaning, or there may be ponding in the soil treatment area.) • Inspection pipes. Replace damaged or missing pipes and caps. • Baffles. Check to make sure they are in place and attached, and that inlet/outlet baffles are clear of buildup or obstructions. • Effluent screen. Check to make sure it is in place; clean per manufacturer recommendation. Recommend retrofitted installation if one is not present. • Alarm. Verify that the alarm works. • Scum and sludge. Measure scum and sludge in each compartment of each septic and pump tank, pump if needed. Pump • Pump and controls. Check to make sure the pump and controls are operating correctly. • Pump vault. Check to make sure it is in place; clean per manufacturer recommendations. • Alarm. Verify that the alarm works. • Drainback. Check to make sure it is draining properly. • Event counter or elapsed time meter. Check to see if there is an event counter or elapsed time meter for the pump. If there is one or both, calculate the water usage rate and compare to the anticipated use listed on Design and Page 2. Dose Volume: gallons: Pump run time: Minutes Soil Treatment Area • Inspection pipes. Check to make sure they are properly capped. Replace caps and pipes that are damaged. • Surfacing of effluent. Check for surfacing effluent or other signs of problems. • Lateral flushing. Check lateral distribution; if cleanouts exist, flush and clean at recommended frequency. • Vegetation - Check to see that a good growth of vegetation is covering the system. All other components — evaluate as listed here: -4- UNIVERSITY OF MINNESOTA. Septic System Management Plan for Above Grade Systems Water -Use Appliances and Equipment in the Home Appliance Impacts on System Management Tips • Uses additional water. • Use of a garbage disposal is not recommended. . Adds solids to the tank. • Minimize garbage disposal use. Compost instead, Garbage disposal • Finely -ground solids may not settle. • To prevent solids from exiting the tank, have your Unsettled solids can exit the tank tank pumped more frequently. and enter the soil treatment area. Add an effluent screen to your tank. • Washing several loads on one day Choose a front -loader or water -saving top -loader, uses a lot of water and may overload these units use less water than older models. your system. Limit the addition of extra solids to your tank by • Overloading your system may using liquid or easily biodegradable detergents. Washing machine prevent solids from settling out in Limit use of bleach -based detergents and fabric the tank. Unsettled solids can exit softeners. the tank and enter the soil treatment Install a lint filter after the washer and an effluent area, screen to your tank • Wash only full loads and think even — spread your laundry loads throughout the week. • Powdered and/or high -phosphorus • Use gel detergents. Powdered detergents may add detergents can negatively impact the solids to the tank. Dishwasher performance of your tank and soil • Use detergents that are low or no -phosphorus. treatment area. • Wash only full loads. • New models promote "no scraping", • Scrape your dishes anyways to keep undigested They have a garbage disposal inside. solids out of your septic system. • Finely -ground solids may not settle. . Expand septic tank capacity by a factor of 1.5. Grinder pump (in Unsettled solids can exit the tank • Include pump monitoring in your maintenance home) and enter the soil treatment area. schedule to ensure that it is working properly. • Add an effluent screen. • Large volume of water may • Avoid using other water -use appliances at the same Large bathtub overload your system. time. For example, don't wash clothes and take a (whirlpool) Heavy use of bath oils and soaps can bath at the same time. impact biological activity in your • Use oils, soaps, and cleaners in the bath or shower tank and soil treatment area. sparingly. Clean Water Uses Impacts on System Management Tips High -efficiency Drip may result in frozen pipes . Re-route water directly out of the house. Do not furnace during cold weather. route furnace discharge to your septic system. Water softener Salt in recharge water may affect • These sources produce water that is not sewage and Iron filter system performance. should not go into your septic system. Reverse osmosis Recharge water may hydraulically • Reroute water from these sources to another outlet, overload the system. such as a dry well, draintile or old drainfield. • When replacing, consider using a demand -based • Water from these sources will Surface drainage overload the system and is recharge vs. a time -based recharge. Footing drains prohibited from entering septic • Check valves to ensure proper operation; have unit system. serviced per manufacturer directions -5- UNIVERSITY Septic System Management Plan OF MINNESOTA. for Above Grade Systems Homeowner Maintenance Log Track maintenance activities here for easy reference. See list of management tasks on pages 3 and -l. Activity Date accomplished Check frequently: Leaks: check for plumbing leaks* Soil treatment area check for surfacing** Lint filter: check, clean if needed* Effluent screen (if owner -maintained)*** Alarm** Check annually: Water usage rate (maximum gpd ) Caps: inspect, replace if needed Water use appliances — review use Other: *Monthly **Quarterly ** *Bi -Annually Notes: "As the owner of this SSTS, I understand it is my responsibility to properly operate and maintain the sewage treatment system on this property, utilizing the Management Plan. If requirements in this Management Plan are not met, I will promptly notify the permitting authority and take necessary corrective actions. If I have a new system, I agree to adequately protect the reserve area for future use as a soil treatment system." Property Owner Signature: Date Management Plan Prepared By: Joseph J. Olson Certification # C1255 Permitting Authority: 02015 Regents of the University of Minnesota. All rights reserved. The University of Minnesota is an equal opportunity educator and employer. This material is available in alternative formats upon request. Contact the Water Resources Center, 612-624-9282, The Onsite Sewage Treatment Program is delivered by the University of Minnesota Extension Service and the University of Minnesota Water Resources Center.