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HomeMy WebLinkAbout06-24-22 Septic DesignJoseph Olson D.B.A. Rusty Olson's--Soil and Percolation Testing Joseph J. Olson--MPCA License # 810 11481 Riverview Rd. NE, Hanover, MN 55341 (763) 498-8779 Cell (612) 296-7715 June 13, 2022 Tim Donaldson 555 Ferndale Road N. Orono, Hennepin County This on-site Sewage Treatment System is designed for a Type 1 four-bedroom home in accordance with the Minnesota Pollution Control Agency Chapter 7080 and local ordinances. The periodically saturated soils were located at 20-24inches (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 existing septic system does not conform to the state code chapter 7080 All neighboring wells are greater than 100' from proposed treatment areas. The existing septic tanks must be abandoned and a 2250 -gallon septic tank needs to be installed or equivalent capacity. There are two existing plumbing outlets coming from the house. A plumber must reconnect the lum bing in the house into old original outlet of the house. The existing supply line from the house to first tank may be cast iron. Remove as much of the cast iron pipe as possible and replace it with plastic pipe. Use 7132 Inch perforations must be used on the laterals. All new 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.. A 1000 -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. 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 large volume whole house 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 -rSM, N9l;sAJ4PJr&kefdr4r .s A2 AT WR NG• %uU,v WHO C6PY a d , Ji J i• � ` � J ./ J�• th IjG) AI V rn m rj 7. kw k eTt IjG) AI V rn m rj 7. kw k IjG) AI m m r" Z AI 2011 purple code Mound Design www.Sep#icResource.com (vers 22.2) Property Owner: Tim Donaldson Date: 6/13/2022 Site Address: 555 Ferndale Road N. PID: 3611823140003 Comments: instructions: 0 = enter data = adjust if desired = computer calculated - DO NOT CHANGE! 1)bedroom Type Residential System 2) 600 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: Multiple tanks or compartments req'd 5) 1.2 GPD/ft2 mound sand loading rate contour loading rate of12 req's a min 50 ft. long rockbed 6) 30.0 ft rockbed width 50.0 ft rockbed length 7) 3.0 ft lateral spacing 3A ft perforation spacing (maximum of 3 for both) end feed manifold connection 8) laterals 48.0 feet long 17.0 perfs / lateral 51 perfs total (1/2 a perf means the first perf starts at the middle feed manifold) inch perfs atfeet residual head gives 0.56 gpm flow rate per perforation for this perf size li spacing, Ft pipe size on line 12, max perfs/lateral = 30 , line #8 must be less - > OK 10) 4.0 doses per day (4 minimum) 1)) 150 gallons per dose (treatment volume) i2) 2.00 inch diameter laterals must be used to meet "4x pipe volume" requirement 13) 45 feet of 2.0 inch supply line leads to gallons of drainback volume (Tip: "top feed" manifold to control the drainback) 14) 158 gallons TOTAL pump out volume (treatment + drainback) 15) 10 feet vertical lift from pump to mound laterals, leads to a: 16) 29 JGPM @ 17 feet of head, Pump requirement (note: >50gpm may require an extra 3-6' of head) 17) 500 gal Dose tank (code minimum) 1000 gal Dose tank (design size / LUG req'd) at F25.0019pi leads to a: Optional Time dosing of: 18) 6.3 inch swing on Demand float, (this delivers Average flow, =70% of Peak design flow) 5.4 min ON 19)Plinches. inches from bottom of tank to "Pump OFF" float 8.5 hrs OFF '20) inches from bottom of tank to "Pump ON" float 12 inches to "Timer ON" float 21) from bottom of tank to "Hi Level" float 31 inches to "Hi Level" float 22) 475 gallons reserve capacity (after High Level Alarm is activated -demand dosed) H 0.60 gpd/ft2 Absorption area Soil Loading Rate, which gives a mound ratio of 2 (minimum) (this must match the soil boring log) desired mound ratio 2,0 12 percent site slope (0-20% range) 12 (% downslope site slope, if different than upslope) 22 inches, or 1.8 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: 14 inch, or 1.2 ft. Sand Lift Mound CRITICAL FOR FUTURE CERTIFICATIONSIH 20.0 ft.Total ABSORPTION width (with sand beyond rockbed as follows:) -o. 0 ft. upslope and sideslope 10.0 ft. Downslope Individual slope ratios give BERM widths (topsoil beyond rockbed) of: 4:1 upslope ratio 8 ft. upslope berm 4:1 sideslope 17 ft. sideslope berms 3:1 downslope 20 ft. downslope berm Overall Dimensions: Upslope germ I 8 1.2 Limiting c=ondition 10.0 ft. wide by 50.0 ft. long Rock bed 38 ft. wide by 1 84 ft. long Mound footprint 4" inspection pipe r-- 18" cover on top Clean sand lift Depth to Limiting -'` ----------------- Absorption Width 20. 20 12" cover on sides (6" loamy cap &6" topsoil) Note: For O to 1% slopes, Ahsorption Width is measured from the Bedequally in both directions. For slopes >1%, Absorption Width is measured downhill from the upslope edge of the Bed. Rock Bed: 10.0 ft. by 50.0 ft. by ®inches under pipe, plus 20% gives =yd-' or *1.4= 24 ton Mound Sand: (note: volume is based on 3:1/4:1 scope from top of rockbed, Exchange sand for loamy cap if desired) 17.8 up * F -7-6—T downslope + 16.8 ends + 32.7 under rock =173 yd' or *1.4= 242 ton PLUS 20% Loamy Cap: 34 ft. by $0 ft. 6" deep, plus 20% gives 36) Topsoil: 61 yd' or *1.4= 85 ton 38 ft. by 84 ft. 6" deep, plus 20% gives 71 yd' or "1.4= g9 ton I hereby certify that I have completed this work in accordance with all applicable ordinances, rules and laws. Rusty Olson's Soil Et Perc 810 6/13/2022 "Designer Signature Company License# Date Installer Summary 2250 gallon Septic tank (minimum) Tank options: Multiple tanks or compartments req'd au2h aarger tanK wiui mutupre corner LanKs 1000 gallon Dose tank (minimum) at 25.00 gpi 29 GPM @ 17 ft. of head, Pump required 6.3 inch swing on Demand float which translates to roughly 4.2 inches of float tether length 18 inches from bottom of tank to "pump ON" float, orM hours OFF 21 inches from bottom of tank to "Hi Level Alarm" or inches to "timer ON" float inches to "Hi level" float 45 ft. of 2.0 inch supply line with end feed manifold connection (Tip: "top feed" manifold to control drainback) 14 inch, or 1.2 ft. Sand Lift Mound 10.0 ft, wide by 50.0 ft. long Rock bed 3 laterals 2.00 inch diameter 48.0 ft. long 3.0 ft. lateral spacing 7/32 inch perfs 3.0 ft. perforation spacing No Effluent filter Et alarm 3 clean out Et valve box assemblies 20.0 ft.Total sand ABSORPTION width (minimum) O,D ft. upslope and sideslope (sand beyond rockbed, minimum) 10.0 ft. Downslope (sand beyond rockbed, minimum) Specific slope ratios give BERM widths (topsoil beyond rockbed) of: 4:1 upslope ratio 8 ft. upslope berm 4:1 sideslope 17 ft. sideslope berms 3:1 downslope 20 ft. downslope berm 4" inspection pipe 18" cover on top L,Upslope berm 0 til b DownslODe berm 20 12" cover on sides (6" loamy cap & 6" topsoil) 1.2 11 Clean sand lift 1 1.8 Depth to Limiting Limikin$ Condition _ _ ` -- _ — Absorption Width Note. For 0 to 1% slopes, Absorption Width is measured from the Bedequally in both directions. For slopes 51 %, A,hsorption Width is measured downhill from the upslope edge of the Bed. Rock Bed: 17.0 yd or *1.4= 24 ton 6 inches under pipe Mound Sand: 173 yd or *1.4= 242 ton calculation based on 3:1/4:1 slope from top of rockbe Loamy Cap: 61 yd or *1.4= 85 ton 6" deep Topsoil: 71 yd or *1.4= 99 ton 6" deep INSPECTOR CHECKLIST - mound 555 rerndale Koaa N. 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 Ft bounds: out of road easement, or outer ditch. LAKE 1 BLUFF setback: 20' for bluff. Lakes: GD _, RD `, NE Protected wetland _. Building setbacks: 10' for everything, 20' for dispersal area. WATER LINE under pressure 10' to bed,tank Ft sewer line. (else sewer line > 12" below) Sewer line Ft tank connection (no hard 90's, long sweep 90 or 2.45'x, slope minimum 1" in 8'= 1%) (no depth req's, 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 €t alarm Dose tank, risers and piping (water tight risers, insulated, proper depth, drainback) Mfg 1000 gallons Optional Time dosing of: dose pump 29 gpm 17 head VERIFY PUMP CURVE 5.4 min ON 8.5 hr OFF verify that installed "vertical lift from pump to laterals" is no more than design value of 10 feet float setting drop 6.3 inches at 25.0 gpi "DESIGNED" 4.2 inches approx float tether length 158.0 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 118"+, supported by 4" sch40 sleeve or compacted, and buried 6"+. splice box / control panel / electrical connections / Hi Level Alarm flow measurement: CT, ETM, time dosed, home water meter mound absorption area rough up mound rock dimensions 10.0 X 50.0 Sand lift depth 14 inches. (Jar test : 2" sand leaves < 1l8" silt after 30 min) Absorption Sand beyond rock 0.0 upslope 10.0 downslope Bermed topsoil beyond rockbed 8 upslope 17 sideslope 20 downslope cover depth of 12-18"+ VERIFY 3 laterals (1-2' from edge of rock) 2.00 inch pipe size (Sch40 pipe Ft fittings) 3.0 ft lateral spacing B 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 r o koi V--� � / � � 2 s 2 E w E |CL � � 2 � 2 E CL k . � � | | 7 � 2 % m b � 2 §�AA CCU k � { � ¥ \ $ 4-J e © k a ZA koi V--� � / � � 2 s 2 E w E |CL � 2 E CL k _ � | | 7 � 2 � ■ ¥ � � § 2 | | | � § Property Owner / project: Property Address / PID: Soil Observation Log www.SepticResource.com vers 12.4 Owner Information Titre Donaldson 555 Ferndale Road N Date 6/10/2022 Soil Survey Information ❑ refer to attached soil survey Parent matl's: E Till ❑ Outwash ❑ Lacustrine ❑ Alluvium ❑ Organic ❑ Bedrock landscape position: ❑ Summit Q Shoulder P Side slope ❑ Toe slope soil survey map units: 122L2 slope %- %4 direction- Linear Soil Log #1 2 Boring ❑ pit Elevation 100.0 Depth to SHWT 22 Inches Depth (in) Texture fragment % matrix color redox color consistence grade shape 0-8 Loam <35 10yr3/1 Friable Strong Blockv 8-14 Loam <3 I Oyr4/3 Friable Strong Blocky 14-22 Clay Loam <35 10yr5/4 Friable Strong Blocky 22-28 Clay Loam <35 10yr5/4 10y4/8,1 -6/10y Friable Strong. Blocky <35 loose loose single grain 35-50 friable weak granular blocky >50 firm moderate prismatic platy rigid strong massive Comments: 555 Ferndale Road N Soil Log #2 Boring ❑ Pit Elevation 100.0 Depth to SHWT 24 Inches Depth (in) Texture fragment % matrix color redox color consistence grade shape 0-8 Loam -<35 10yr3/1 Friable Strong Blocky 8-16 Loam <35 10yr4/3 Friable Strong Blocky 16-24 Clay Loam <35 10yr5/4 Friable 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 firm moderate prismatic platy >50 rigid I strong I massive 555 Ferndale Road N Soil Log 43 ❑ Boring ❑ Pit Elevation 100.0 Depth to SHWT 24 Inches Depth (in) Texture fragment % matrix color redox color consistence grade shape 0-14 loam <35 10yr3/1 Friable Strong Blocky 14-24 loam <35 10yr4/3 Friable 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 <35 loose loose single grain 35-50 friable weak granular blocky >50 firm moderate prismatic platy rigid I strong massive I hereby certify this work was completed in accordance with MN 7080 and any local reqs. Rusty Olson's Soil & Perc. 810 esigner Signature Company License # 555 Ferndale Road N Soil Log #4 1] Boring p pit Elevation 97.3 Depth to SHWT 20 Inches Depth (in) Texture fragment % matrix color redox color consistence grade shape 0-6 Loam <35 1Oyr4/2 Friable Strong Blocky 6-14 Loam <35 1 Oyr4/3 Friable Strong Blocky 14-20 Clay Loam <35 l Oyr5/4 Friable Strong Blocky 20-26 Clay Loam <35 10yr5/4 I Oy4/8,1-6/1 Oy Firm Strong Blocky <35 loose loose single grain 35-50 friable weak granular blocky >50 firm moderate prismatic platy rigid strop massive 555 Ferndale Road N Soil Log #5 0 Boring ❑ pit Elevation Depth to S14WT 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 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 I hereby certify this work was completed in accordance with MN 7080 and any local reqs. Rusty Olson's Soil & fere. 810 Designer 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 wife and clean water! Property Owner Email Property Address 555 Ferndale Road N. PropertyID 3611823140003 System Designer Joseph J. Olson Contact Info 763-498-8779 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 800-32.2-8642. 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 Septic System Specifics System Type: (:) I ()II ()III ()IV* () V* ❑ System is subject to operating permit* (Based on A4N Rules Chapter 7080.2200 — 2400) ❑ System uses UV disinfection unit* *Additional Management Plan required Type of advanced treatment unit ❑ Second tank Tank volume: Dwelling Type Well Construction Number of bedrooms: 4 Well depth (ft): unknown System capacity/ design flow (gpd): 600 ❑ Cased well Casing depth: Anticipated average daily flow (gpd): 400 ❑ Other (specify): Comments Distance from septic (ft): 70 Is the well on the design drawing? eY a N Business? : QY e What type? Soil Treatment Area (STA) Septic Tank ❑ First tank Tank volume: gallons ❑ Pump Tank gallons Does tank have two compartments? OY ON ❑ Effluent Pump make/model: ❑ Second tank Tank volume: gallons Pump capacity GPM ❑ Tank is constructed of TDH Feet of head ❑ Effluent screen:0 Y e N Alarm OY e N ❑ Alarm location Soil Treatment Area (STA) Mound/At-Grade area (width x length): 38 ft x B4 ft El9 Inspection Cleanouts 0 �o Rock bed size (width x length): ft x ft ports Location of additional STA: NIA Surface water diversions Type of distribution media: Rock Additional STA not available ❑ -2- UNIVERSITY Septic System Management Plan A. k- AA4 for Above !!rade Systems br!!� 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 Ieaks 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 As-'� 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 Dere: UNIVERSITY OF MINNESOTA Septic System Management Plan for Above Grade Systems Water -Use Appliances and Equipment in the Home ti0 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 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 ***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.