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HomeMy WebLinkAboutseptic designJoseph Olson D.B.A. Rusty Olson's--Soil and Percolation Testing Joseph J. Olson--MPCA License 9810 11481 Riverview Rd. NE, Hanover, MN 55341 (763) 498-8779 Fax (763) 498-8290 October 10, 2021 Morton Homes 610 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 12-20 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. The supply tine must be directional bored as a force main below frost. Drain back cannot be achieved. 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 equipment 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 and water treatment systems cannot go into the septic system. 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 2091 purple code Mound Design wvvw.SepticResource.cam (vers 21.2) Property Owner: Norton Homes Site Address: 610 Lakeview Parkway Comments: Date: 10/10/2021 PID: 0617723310010 = enter data 0 = adjust if desired 0 = computer calculated - DO NOT CHANGE? i) bedroom Type 2) 750 GPD design flow 3) Yes Garbage disposal or pumped to septic a) 2250 Gal Septic tank (code minimum) 1,2 GPD/ft2 mound sand loading rate Residential System 509 larger tank with multiple comp/tanks 2250 Gal Septic tank (design size / LUG req'd) Tank options: Multiple tanks or compartments req'd contour loading rate of =req's a min 63 ft. long rockbed 10.0 ft rockbed width 63.0 ft rockbed length 3.0 ft lateral spacing TO ft perforation spacing (maximum of 3 for both) end feed manifold connection 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) 7f 32 inch perfs atfeet residual head gives 0.56 gpm flow rate per perforation for this perf size Et spacing, & pipe size on line 12, max perfs/lateral = 30 , line #8 must be less > OK 10) 4.0 doses per day (4 minimum) 11) 788 gallons per dose (treatment volume) 12) 2.00 inch diameter laterals must be used to meet "4x pipe volume" requirement 13) 175 feet of 2.q inch supply line leads to 30 gallons of drainback volume (Tip: "top feed" manifold to control the drainback) 14) 218 gallons TOTAL pump out volume (treatment + drainback) 15) 16 feet vertical lift from pump to mound laterals, leads to a: 16) 36 GPM 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: I Optional Time dosing of: 18) 8.6 inch swing on Demand float, (this delivers Average flow, =709 of Peak design flow) 6.1 min ON 19) 12 inches from bottom of tank to "Pump OFF" float 8.5 hrs OFF ?o) 1 21 linches from bottom of tank to "Pump ON" float 12 inches to "Timer ON" float 21) 24 linches from bottom of tank to "Hi Level" float 34 inches to "Hi Level" float 22) 638 gallons reserve capacity (after High Level Alarm is activated -demand dosed) M 3) 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 2.7 percent site slope (0-20% range) 12 (% downslope site slope, if different than upslope) 16 inches, or 1.3 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: 20 inch, or 1.7 ft. Sand Lift Mound CRITICAL FOR FUTURE CERTIFICATIONS!!! 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 12 ft. upslope berm 4;1 sideslope 16 ft. sideslope berms 4:1 downslope 26 ft. downslope berm Overall Dimensions: berm L411iting Condi 10.0 ft. wide by 63.0 ft. long Rock bed 4$ 1 ft. wide by 1 95 1 ft. long Mound footprint 4" inspection pipe e-- 18" cover on top 12 1 Clean sand lift L1 33 Depth to Limiting, r� '� — ---------- _—_ AbsorQtion Width Downslove berm F261 12" cover on sides (6" loamy cap &:6" topsoil) Note: For Q to 1% slopes, Absorption WIdth is measured from the Bedequally in Fath directions. For slopes >1%, Absorption Width is measured downhill from the upslope edge of the Bed Rock Bed: 10.0 ft. by F —63—.70.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) 38.2 up + 124.2 downslope + 14.9 ends + 44.7 under rock =266 yd-' or "1.4= 373 ton plus 20% Loamy Cap: 44 ft. by 91 ft. 6" deep, plus 20% gives 36) Topsoil: 89 yd' or *1.4= 125 ton 48 ft. by 95 ft. 6" deep, plus 20% gives =yd-' or *1.4= 143 ton I hereby certify that I have completed this work in accordance with all applicable ordinances, rules and laws. Rusty Olson's Soil iz Perc 810 10/10/2021 finer Signature Company License# Date Installer Summary 2250 gallon Septic tank (minimum) Tank options: Multiple tanks or compartments req'd ou7b Larger [anK wr[n muiupLe compfranres 1250 gallon Dose tank (minimum) at 25.49 gpi 36 GPM L 29 ft. of head, Pump required 8.6 inch swing on Demand float which translates to roughly =inches of float tether length 6.1 minutes ON 21 inches from bottom of tank to "pump ON" float, or 8.5 hours OFF 24 inches from bottom of tank to "Hi Level Alarm" or 12 inches to "timer ON" float 34 inches to "Hi level" float 175 ft. of 2.0 inch supply line with end f —ee—d7 manifold connection (Tip: "top feed" manifold to control drainback) 20 inch, or 1.7 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 =ft. lateral spacing 7132 inch perfs 3.0 ft. perforation spacing No Effluent filter 8: alarm 3 clean out It valve box assemblies 27,0 ft.Total sand ABSORPTION width (minimum) 0.0 ft. upslope and sideslope (sand beyond rockbed, minimum) 17.p ft. Downslope (sand beyond rockbed, minimum) Specific slope ratios give BERM widths (topsoil beyond rockbed) of: 4:1 upslope ratio 12 ft. upslope berm 4:1 sideslope 16 ft. sideslope berms 4:1 downslope 26 ft. downslope berm 4" inspection pipe 18" cover on top UDslooe berm = _ I 11 Downslope berm 26 12" cover on sides (6" loamy cap & 6" topsoil) 1.7 Clean sand lift G.3 Depth to Limiting Li Mtall _ ---T— — - — - Absorption Width --- Note: For 0 to 1%slopes, Absorption Wdth is measured from the Bedequally in both directions. For slopes X1%, A,hsorption Width is measured downhill from the upslope edge of the Bed. Rock Bed: 21.0 yd or *1.4= 29 ton Mound Sand: 266 yd3 or *1.4= 373 ton Loamy Cap: 89 yd or *1.4= 125 ton Topsoil: 102 yd or "1.4= 143 ton INSPECTOR CHECKLIST 61U Lakeview tlarKway 6 inches under pipe calculation based on 3:1 /4:1 slope from top of rockbe 6" deep 6" deep - mound F-1 WELL setbacks: 20'- 50' to sewer line req's MDH pressure test form (5 psi for 15 min) 50' to everything 100' to drainfield 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 133., RD _, NE Protected wetland _. Building setbacks: 10' for everything, 20' for dispersal area. WATER LINE under pressure 10' to bed,tank Et sewer line. (else sewer line > 12" below) Sewer line Et tank connection (no hard 90's, long sweep 90 or 2-45's, slope minimum 1" in 8' = 1%) (no depth reqs, clean out every 100', Sch 40 pipe) ❑ Septic tank and risers (water tight risers, baffles, insulated, proper depth, existing verified by pumping) mfg 2250 gallons Multiple tanks or compartments req'd Riser over outlet, riser over inlet or center, and 6"+ inspection pipe over any remaining baffles. No effluent filter Et alarm Dose tank, risers and piping (water tight risers, insulated, proper depth, drainback) Mfg 1250 gallons Optional Time dosing of: dose pump 36 gpm 29 head VERIFY PUMP CURVE 6.1 min ON 8.5 hr OFF verify that installed "vertical lift from pump to laterals" is no more than design value of 16 feet float setting drop 8.6 inches at 25.5 gpi "DESIGNED" 5.3 inches approx float tether length 218.0 gal dose divided by gpi "INSTALLED" = inches float drop (field corrected LABEL pump requirements and drawdown on riser or panel Cam lock 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 20 inches. (Jar test : 2" sand leaves < 1 /8" silt after 30 min) ❑ Absorption Sand beyond rock 0.0 upslope 17.0 downslope Bermed topsoil beyond rockbed 12 upslope 16 sideslope 26 downslope cover depth of 12-18"+ VERIFY 3 laterals (1-2' from edge of rock) 2.00 inch pipe size (Sch40 pipe Et fittings) 3.0 ft lateral spacing 8 7/32 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 monitoring plan and type well abandonment form - if necessary �Re-use existing tank certification e 0 'S! u ctr � .he ca Y c G c4 C H I— S O c V rs p E ID s] _ Q co c 0 � 'S! u ctr � Y co cd S O c V rs p N s] _ Q co c 0 � I CL I 'S! u Til ctr � Y co cd V Q Til Soil Observation Log www.SepticResource.com vers 12.4 Owner Information Property Owner / project: Norton Homes Date 611114-10108121 Property Address / PID: 610 Lakeview Parkway Soil Survey Information ❑ refer to attached soil survey Parent matl's: 2 Till ❑ Outwash ❑ i_acustrine ❑ Alluvium ❑ Organic ❑ Bedrock landscape position: ❑ Summit ❑ Shoulder ❑ Side slope Cl Toe slope soil survey snap units: L36A slope -13 % direction- Convex More like L41D2-L40B Soil Log HI R] Boring ❑ Pit Elevation 945.0 Depth to SHWT 12 inches Depth (in) Texture fragment % matrix color redox color consistence grade shape 0-4 Loam <35 10yr3/2 Friable Strong Blocky 4-12 Clay Loam <35 10yr5/4 Friable Strong Blocky 12-24 Clay Loam <35 10yr5/4 10y4/8,1 -6/10y Firm Strong Blocky <35 loose loose single grain friable weak granular blocky 35-50 firm moderate prismatic platy >50 rigid strong massive <35 loose loose single grain friable weak granular blocky 35-50 firm moderate prismatic platy X50 rigid strong massive Comments: Soild borings 1-6 were located and elevations provided by the engineer EVS. 610 Lakeview Parkway Soil Log 42 C] Boring ❑ Pit Elevation 945.2 Depth to SHWT 16 inches Depth (in) Texture fragment % matrix color redox color consistence grade shape 0-8 Loam <35 1Oyr3/1 Friable Strong Blocky 8-16 Clay Loam <35 10yr4/3 Friable Strong Blocky 16-24 Clay Loam <35 10yr5/4 10y4/8,1 -6/10y Firm Strong Blocky ^ <-5 loose loose single grain friable weak granular blocky 35 - SO firm moderate prismatic platy >50 rigid strong massive loose loose single grain <35 friable weak granular blocky 35-50 firm moderate prismatic platy >50 rigid I strong massive 610 Lakeview Parkway Soil Lag 93 C] Boring ❑ Pit Elevation 946.3 Depth to SHWT 16 inches Depth (in) Texture fragment % matrix color redox color consistence grade shape 0-8 Loam <35 10yr3/1 Friable Strong Blocky 8-16 Clay Loam <35 10yr4/3 Friable Strong Blocky 16-24 Clay Loan) <35 10yr5/4 10y4/8,1 -6/10y Firm Strong Blocky <35 loose loose single grain friable weak granular blocky 35-50 firm moderate Prismatic platy >50 rigid strong massive loose loose single grain <3.5 friable weak granular blocky 35-50 firm moderate prismatic platy >50 rigid 1 strong massive I 1 hereby cern this work was completed in accordance with AM 7080 and any local reqs. Rusty Olson's Soil & Pere 810 esigner Signature Company License # 610 Lakeview Parkway Soil Log #4 21 Boring p Pit Elevation 946.3 Depth to SHWT 18 inches Depth (in) Texture fragment % matrix color redox color consistence grade shape 0-14 Loam v; 1Oyr3/1 Friable I Strong Blocky 14-18 1 Clay Loam <35 1 10yr4/3 Friable IStrong IBlocky 18-24 Clay Loam <35 10yr5/4 10y4/8,1 -6/10y Firm Strong Blocky loose single grain < granular blocky moderate loose loose single grain 35-50 friable weak granular blocky fmn moderate prismatic platy >50 rigid strong massive <35 loose loose single grain 35-50 friable weak granular blocky firm moderate prismatic platy >50 rigid strong massive 610 Lakeview Parkway Soil Log #5 RI Boring ❑ Pit Elevation 943.0 Depth to SHWT 22 inches Depth (in) Texture fragment % matrix color redox color consistence grade shape 0-14 Loam <35 10yr3/1 I Friable Strong Blocky 14-22 1 Clay Loam 22-30 1 Clay Loam <35 <35 <35 35-50 >50 <35 35-50 >50 10yr4/3 10yr5/4 Friable I Strong (Blocky lOy4/8,1-6/10y IFirrn loose friable firm rigid loose friable firm rigid Strong �lc�ct loose single grain weak granular blocky moderate prismatic platy strong massive loose single grain weak granular blocky moderate prismatic platy strong massive I hereby certify this work was completed in accordance with AN 7080 and any local reqs. Rusty Olson's Soil & Perc 810 esigner Signature Company License 4 Property Owner / project: Property Address 1 PID: Soil Observation Lag www.SepticResource.com vers 12.4 Owner Information Norton Homes 610 Lakeview Parkway Date 6/1/14-10/08/21 Soil Survey Information ❑ refer to attached soil survey Parent matl's: ❑ Til[ ❑ outwash ❑ Lacustrine ❑ Alluvium ❑ Organic ❑ Bedrock landscape position: ❑ Summit ❑ Shoulder ❑ Side slope ❑ Toe slope soil survey map units: L36A slope 5-13 % direction- Convex More like L41 D2-L40B Soil Log #6 ❑ Boring ❑ Pit Elevation 944.6 Depth to SHWT 20 inches Depth (in) Texture fragment % matrix color redox color consistence grade shape 0-14 Loam <35 10yr3/1 Friable Strong Blocky 14-20 Clay Loam <35 10yr4/3 Friable Strong Blocky 20-30 Clay Loam <35 10yr5/4 10y4/8,1 -6/10y Firm Strong Blocky <35 loose loose single grain friable weak granular blocky 35-50 firm moderate prismatic platy >50 rigid strong massive <35 loose loose single grain friable weak granular blocky 35-50 firm moderate prismatic platy >50 rigid strong massive Comments: 610 Lakeview Parkway Soil Log #7 p Boring ❑ Pit Elevation 951.5 Depth to SHWT 16 inches Depth (in) Texture fragment % matrix color redox color consistence grade shape 0-8 Loam <35 10yr3/1 Friable Strong Blocky 8-16 Clay Loam <35 10yr4/3 Friable Strong Blocky 16-24 Clay Loam <35 1Oyr5/4 10y4/8,1-6/IOy Firm Strong Blocky <35 loose loose single gain friable weak granular blocky 35-50 firm moderate prismatic platy >50 rigid strong massive < loose loose single grain friable weak granular blocky 35-50 firm moderate prismatic platy >50 rigid strong massive 610 Lakeview Parkway Soil Log #8 El Boring ❑ Pit Elevation 951.5 Depth to SHWT 16 inches Depth (in) Texture fragment % matrix color redox color consistence grade shape 0-8 Loam <35 10yr3/l Friable Strong Blocky 8-16 Clay Loam <35 10yr4/3 Friable Strong Blocky 16-24 Clay Loam <35 10yr5/4 10y4/8,1 -6110y Firm Strong Blocky <35 loose loose single grain friable weak granular blocky 35-50 firm moderate prismatic platy >50 rigid strong massive <35 loose loose single grain friable weak granular blocky 35-50 firm moderate prismatic platy X501 Irigid. 1 strong I massive 1 hereby certify this work was completed in accordance with MN 7080 and any local reqs. Rusty Olson's Soil & Pere 810 esigner Signature Company License # 610 Lakeview Parkway Soil Log #9 21 Boring ❑ Pit Elevation 951.5 Depth to SHWT 20 inches Depth (in) Texture fragment % matrix color redox color consistence grade shape 0-10 Loam <35 10yr3/1 I Friable Strong Blocky 1 10-20 1 Clay Loam <35 1 1Oyr4/3 Friable I Strong IB]cck\ 20-26 Clay Loam <35 10yr5/4 10y4/8,1 -6/10y Firm Strong Blocky <35 loose loose single grain friable weak granular blocky 35-50 firm moderate prismatic platy >50 rigid stroniz massive <35 loose loose single grain friable weak granular blocky 35-50 firm moderate prismatic platy >50 rigid gtron massive 610 Lakeview Parkway Soil Log #10 P Boring ❑ Pit Elevation 948.0 Depth to SHWT 12 inches Depth (in) Texture fragment % matrix color redox color consistence grade shape 0-6 Loam <35 10yr3/1 Friable Strong, Blocky 6-12 1 Clay Loam 1 <35 1 Oyr4/3 Friable I Strong 12-20 Clay Loam <35 1Oyr5/4 I Oy4/8,1-6/1 Oy Firm Strong Blocky <35 loose loose single grain friable weak granular blocky 35-50 firm moderate prismatic platy >50 rigid strong massive <35 loose loose single grain friable weak granular blocky 35-50 firm moderate prismatic platy >50 rigid strong I massive 1 hereby certify this work was completed in accordance with MN 7080 and any local reqs. Rusty Olson's Soil & Pere 810 Designer Signature Company License # Property Owner 1 project: Property Address 1 PID: Soil Observation Log www.SeptieResource.com vers 12.4 Owner Information Norton Homes 610 Lakeview Parkway Date 6/1114-10/0$/21 Soil Survey Information ❑ refer to attached soil survey Parent matl"s: D Till ❑ Outwash ❑ Lacustrine ❑ Alluvium ❑ Organic ❑ Bedrock landscape position: ❑ Summit ❑ Shoulder ❑ Side slope ❑ Toe slope soil survey map units: L36A slope 5-13 % direction- Convex More like L41D2-L40S Soil Log #11 El Baring ❑ Pit Elevation 948.0 Depth to SHWT 12 inches Depth (in) Texture fragment % matrix color redox color consistence grade shape 0-6 loam <35 10yr3/1 Friable Strong Blocky 6-t2 Clay Loam <35 10yr4/3 Friable Strong Blocky 12-20 Clay Loam <35 10yr5/4 10y4/8,1 -6/10y Firm Strong Blocky loose loose single grain <35 friable weak granular blocky 35-50 firm moderate prismatic platy >50 rigid strong massive <35 loose loose single grain friable weak granular blocky 'S - 50 firm moderate prismatic platy >50 rigid strong massive Comments: UNIVERSITY OF MINNESOTA '`tip. Septic System Management Plan ENE 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 plana 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 clean water! Property Owner Email Property Address 610 Lakeview Parkway Property ll) 0611723310010 System Designer Joseph J. Olson Contact Info 763-4988779 System Installer Contact Info Service Provider/Maintainer Contact Info Permitting Authority Contact Info Permit # Date Inspected Keep 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 Septic System Management Placa for Above Grade Systems OF MINNE.-SOTA Your Septic System Septic System Specifics System Type: a I Q II ©III ()IV* () V* ❑ 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): 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 N Business? : 0 Y E) N What type? Soil Treatment Area (STA) Septic Tank El Inspection ❑ Cleanouts ❑ First tank Tank volume: gallons ❑ Pump Tank gallons Does tank have two compartments? O 0 N ❑ Effluent Pump makelmodel: ❑ Second tank Tank volume: gallons Pump capacity GPM ❑ Tank is constructed of TDH Feet of head ❑ Effluent screen: Y (F) N Alarm aY e N ❑ Alarm location Soil Treatment Area (STA) Mound/At-Grade area (width x length): 48 ft x 95 ft El Inspection ❑ Cleanouts Rock bed size (width x length): 10 ft x 63 ft ports Location of additional STA: See drawing F-] Surface water diversions Type of distribution media: Rock Additional STA not available ❑ -2- UN I V FR.i I TY Septic System Management Plan for Above Grade Systems OF MINNESOTA 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 6" 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. -3- UNIVERSITY Septic System Management Plan for Above Grade Systems OF MINNESOTA 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 lid 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 Septic System Management Plan for Above Grade Systems OF MINNESOTA 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 drain -field. • 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 for Above Grade Systems OF MINNESOTA Homeowner Maintenance Log Track maintenance activities here for easy reference. See list of management tasks on pages 3 and 4. 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 * * * B i -Annually Notes: "As the owner of this SETS, I understand it is my responsibility to properly operate and maintain the sewage treatment system on this property, utilizing the Management Flan. 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, 612-624-9292. The Onsite Sewage Treatment Program is delivered by the University of Minnesota Extension Service and the University of Minnesota Water Resources Center.