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HomeMy WebLinkAbout9-15-20 Septic DesignJoseph Olson D.B.A. Rusty Olson's--Soil and Percolation Testing Joseph J. Olson--MPCA License # 810 11481 Riverview Rd, NE, Hanover, MST 55341 (763) 498-8779 Fax (763) 498-8290 Revised January 7, 2020 September 20, 2005 Hendel Homes 3345 Fox Street 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 18-24 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 All neighboring wells are greater than 100' from proposed treatment areas. The soils at a depth of 12" have a percolation rate averaging 4 MPI. A 2250 -gallon combination septic tank or its equivalent needs to be installed. 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. _KeeA all heavy equipment off of the proposed treatment area before, during and after construction. The area around both sites trust be fenced off by the contractor before any construction begins. 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. 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. Garbage disposals are not recommended. Iron filters cannot go into the system. 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 I �� 221 — — "'ssa. _ - i ` ` -� yam_ 1 / / / j ' ' / / / ! / • L.antractor snau msran tmer prorecnon on an ex -` �sa9- _ ` .�� a/' accordance with the city standard details. Inlet — _~ 1 -sZ , ' , — -ssa � � �'' � �/,/�� , /// / � provided on all proposed storm sewer inlets imr — r cstmction of the inlet. Inlet protection must b d] neat impound water for extended periods of cents a hazard to vehicular or pedestrian tmf 9w5r' pm \ tD+i. \� �` 'xiy' ppb CXancrn Curb - 1 �� ✓�f / /Y/f�f Tap back of curb ` --A •0 ' ` / / ) J� / \i Ir 942.9-s lfi ' / 1,1,• W INSTALL ROCK L'GWS C17ON • &0.2 ¢ \ ,y d+ x+W r / 9't ��VIA , ENTRANCE NOTES Y.Wm ..wwd —RErAINING WALLS, _ ' ' �-rNSTACC 571Ti"EN '-�--J---- t' gasOtw• NN za,y •. - sn 945,5b W e � r•STEPPE raN 9sr.4rw ! l 950. t w \ K I m + c / 948.Obw \,•`G k 0�r % _ .' \� "�\ \ X2_5.0 'TtlAflNCU� + DRl SYAY' ^ PROPOSE'➢-950.Oi \ , r-^-KETLAND BUFFER gi �` DWELLING • �\ \ � \ �: ' ILIA \ ' ` 1M57A1L &L r FENCE JE WDRK) I� jj 5�4 -- 1+E �ITUMINDNr' OR] AY srALL r FtNci-� ` 4 �\ .gam IN \� \ �,\\\\ SF a•� M T 1 E •• STAG 57 r �I � \F= IN \` \ \ \\\ '` \\IN ININ N \\ \ \N' -N, \eN. \• ` \v\ ,°� `� \\ \ ��, bye I c7�.+�jt' ! "`• Jr I I +'4� +y ' ' a \\ / !vkp NNN 'N IN \ s °Jb'`g5� �'\ �. \\\ ` 8r°�'�` "9 Ue IN IN ° z Ste' s S. 9 DF ,yLY C7 Q Iry ^ c e'> CL m F Lt3 Fr 4 2011 purple code Mound Design www.5epticResourre.com (vers 15.2) Property Owner: Hendel Homes Date: 1/7/2020 revised Site Address: 1775 Fox Street PID: 0311723440007 Comments: Test holes and elevation by Gronberg & Associates instructions: = = enter data = adjust if desired = = computer calculated - DO NOT CHANGE! 1) bedroom Type �I 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 s) 1.2 GPD/ft2 mound sand loading rate contour loading rate of =req's a min 62,5 ft. long rockbed 6) 1Q.Q ft rockbed width 62.5 ft rockbed length 7) 3.0 ft lateral spacing 3.0 ft perforation spacing (maximum of 3 for both) end feed manifold connection s! laterals 60,5 feet long 21.0 perfs / lateral 63 perfs total (1/2 a perf means the first perf starts at the middle feed manifold) 7132 inch perfs at feet residual head gives 0.56 gpm flow rate per perforation for this perf size & spacing, Ft pipe size on line 12, max perfs/lateral = 30 line #8 must be less --> OK iti) 4.0 doses per day ( 4 minimum) gallons per dose (treatment volume) 2.00 5x 12) 2.00 inch diameter laterals must be used to meet 'Ax pipe volume" requirement 2.00 3x 13) 200 feet of 2.Q inch supply lime leads to 34 gallons of drainback volume (Tip: "top feed" manifold to control the drainback) ia) 222 gallons TOTAL pump out volume (treatment +drainback) 1s) 15 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 18) 8.7 inch swing on Demand float, or timed dosing of6.min ON (confirm pump rate with drawdown F9�1 (this delivers Average flow, =70% of Peak design flow)hrs OFF test and adjust as necessary) )9) 12 inches from bottom of tank to "Pump OFF" float 20) 21 inches from bottom of tank to "Pump ON" float, orP34 inches to "Timer ON" float if time dosed 21) 24 inches from bottom of tank to "Hi Level" float, or inches to "Hi Level" float if time dosed 22) 638 gallons reserve capacity (after High Level Alarm is activated) H 35) 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 percent site slope (0-20% range) (% downslope site slope, if different than upslope) 18 inches, or 1.5 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 CERTIFICATIONSI! l 27.0 ft.Total ABSORPTION width (with sand beyond rockbed as follows:) 0.0 ft. upslope and sideslope 17.Q ft. Downslope Individual slope ratios give BERM widths (topsoil beyond rockbed) of: 4:1 upslope ratio 10 ft. upslope berm 3:1 sideslope 13 ft. sideslope berms 4;1 downslope 28 ft. downslope berm Overall Dimensions: 10.0 ft. wide by 62.5 ft. long Rock bed 48 ft. wide by 189 ft. long Mound footprint S— 4" inspection pipe - 18" cover- on top berm 1 10 1.5 Clean sand lift berm 1 28 12" cover on sides (6" loamy cap & 6" topsoil) _ _ _ _ _ 1.5 Depth to Limiting Limrtirt Condition - _---- - -- -__ _ I�_ Absorption Width -27.0 ` - -j-__-__s--_ Note: For 0 to 1% slopes, Absorption (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 62.5 ft. by ®inches under pipe, plus 20% gives 21 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) 27.4 up + 107.7 downslope + 12.8 ends + 45.1 under rock = E23Dydj or *1.4= 324 ton plus 20% Loamy Cap: ®ft. by 85 ft. 6" deep, plus 20% gives 36) Topsoil: =yd" or *1.4= 116 ton 48 ft. by 1 89 ft. 6" deep, plus 20% gives 95 yd' or *1.4= 133 ton I hereby certify that I have completed this work in accordance with all applicable ordinances, rules and laws. Rusty Olson"s Soil li Perc 810 1/7/2020 revise esigner Signature Company License# hate Installer Summary 2250 gallon Septic tank (minimum) Tank options: none :Mb lafger LanK w1Ln mUtUple COMPILanKs 1250 gallon Dose tank (minimum) at 25.49 gpi 36 GPM @ 29 ft. of head, Pump required 8.7 inch swing on Demand float which translates to roughly 5.4 inches of float tether length if time dosing is required -->6.2 minutes ON time €t hours OFF time 21 inches from bottom of tank to "pump ON" float, or 12 inches to "timer ON" float 24 inches from bottom of tank to "Hi Level Alarm" or 1 34 1 inches to "Hi level alarm" if time dosed 200 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 62.5 ft. long Rock bed 3 laterals 2.00 inch diameter 60.5 ft. long3.0 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.p ft. Downslope (sand beyond rockbed, minimum) Specific slope ratios give BERM widths (topsoil beyond rockbed) of: 4:1 upslope ratio 10 ft. upslope berm 3:1 sideslope 13 ft. sideslope berms 4:1 downslope 1 28 ft. downslope berm 4" inspection pipe 18" cover on top U slope berm =__,,j tr DovvnsloQe berm 28 12" cover on sides (6" loamy cap &. 6" topsoil) 1.5 11 Clean sand lift Depth to Limiting limiting Condition _---_ -- _ _ Absorption Width Note: For 0 to 1% slopes, .absorption Width is measured from the Bedegually in both directions. For slopes >T%, Absorptio" Width is measured downhill from the upslope edge of the Bed. Rock Bed: 21.0 yd or *1.4= 29 ton Mound Sand: 232 yd or*1.4= 324 ton Loamy Cap: 83 yd or *1.4= 116 ton Topsoil: 95 yd or *1.4= 133 ton INSPECTOR CHECKLIST 6 inches under pipe calculation based on 3:1/4:1 slope from top of rockbe 6" deep 6" deep - mound 1 /,+5 rox Street 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' far bluff. Lakes: GD _, RD _, NE Protected wetland _ Building setbacks: 10' for everything, 20' for dispersal area. WATER LINE under pressure st 10' to bed,tank Et sewer line. (else sewer line > 12" below) Q Sewer line Et baffle connection (no 90's, 3' between 45's, slope min 1" in 8', max 2" in 8') (no depth reqs, clean out every 100', Sch 40 pipe) Septic tank and risers (water tight, insulated, proper depth, existing verified by pumping) mfg 2250 gallons none 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, insulated, proper depth, drainback) Mfg 1250 gallons ❑ dose pump 36 gpm 29 head VERIFY PUMP CURVE 6.2 min ON 9 hr OFF ❑ float setting drop 8.7 inches at 25.5 gpi "DESIGNED" 5.4 inches approx float tether length 222.0 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 62.5 Sand lift depth 18 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 10 upslope 13 sideslope 28 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 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 j � Y V r" / d l Q � V-- � E � � k � 0 � . _ £ 7 | 2 0 � » & 2 � � @ E cu § O | � 2 K k tA Ln 2 2 � V-- � E / 0 � k � � . 7 | 2 � 2 � � @ E | / 0 � k � � . 7 | 2 � 2 � @ | / 0 v � k m k � � | v Soil Observation Log www.SepticResource.com vers 12.4 Owner Information Property Owner / project: Hendel Hames Property Address / PID; 1775 Fox Street Date 3/8/2005 Soil Survey Information ❑ refer to attached soil survey Parent matl's: 0 Till ❑ Outwash ❑ Lacustrine ❑ Alluvium ❑ Organic ❑ Bedrock landscape position: ❑ summit ❑ Shoulder 0 Side slope ❑ Toe slope soil survey map units: L4102 slope 9 % direction- Concave -Convex Soil Log #1 2 Boring ❑ Pit Elevation 947.0 Depth to SHWT 22 Inches Depth (in) Texture fragment % matrix color redox color consistence grade shape 0-6 Topsoil <35 10yr3/2 Friable Moderate Blocky 6-22 Clay Loam <35 1Oyr4/3 Friable Strung 131oc1 22-30 Clay Loam <35 1Oyr5/4 lOy4/8,1-6/10y Firm Strong Blocky <35 loose loose single grain 35-50 friable weak granular blocky firm 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 Comments: 1.775 Fox Street Soil Log 42 El Boring ❑ Pit Elevation 947.0 Depth to SHWT 18 Inches Depth (in) Texture fragment % matrix color redox color consistence grade shape 0-6 Topsoil IOyr3/2 Friable Moderate Blocky 6-18 1 Clay Loam 1 -'3 5 1 I Oyr4/3 Friable I Strong I Blocky 18-30 Clay Loam <3 5 l Oyr5i4 1 Oy4/8,1-6/ 1 Oy Firm Strong Blocky loose single grain <35 granular blocky moderate loose loose single grain 35-50 friable weak granular blocky firm moderate prismatic platy >50 rigid strong massive <35 loose loose single grain 35-50 friable weak granular blocky firm moderate prismatic platy >50 rigid 1 strong massive I 1775 Fox Street Soil Log 93 Q Boring ❑ Pit Elevation 952.0 Depth to SHWT 22 Inches Deptli (in) Texture fragment % matrix color redox color consistence grade shape 0-6 Topsoil <35 10yr3/2 Friable I Moderate Blocky 6-22 1 Clay Loam 1 <35 22-30 1 Clay Loam <35 <35 35-50 >50 <35 35-50 >50 1 Oyr4/3 1 Oyr5/4 Friable IStrong 13lock-, 10y4/8,1 -6/10y jFirm loose friable firm rigid loose friable firm rigid Strong 113locky 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 MN 7080 and any local req's. Rusty Olson's Soil & Pero 810 igner Signature Company License # 1775 Fox Street Soil Log #4 El Boring ❑ Pit Elevation 952.0 Depth to SHWT 24 Inches Depth (in) Texture fragment % matrix color redox color consistence grade shape 0-6 Topsoil <35 10yr3/2 Friable Moderate Blocky 6-18 Loam <35 10yr4/3 Friable Strong Blocky 18-24 Clad Loam 35 10yr5/4 Friable Strong Blocky 24-30 Clan Loam -35 1OW/4 IOy4/8,1-6/l0y Firm Strong Blocky <35 loose loose single grain 35-50 friable weak granular blocky firm moderate prismatic platy >50 rigid I strong massive 1775 Fox Street Soil Log #5 FA Boring ❑ pit Elevation 947.0 Depth to SHWT 24 Inches Depth (in) Texture fragment % matrix color redox color consistence grade shape 0-6 Topsoil <35 10yr3'2 Friable Moderate Blocky 6-18 Loam <35 10yr4/3 Friable Strom Blocky 18-24 Clay Loam <35 10yr5/4 Friable 'Strong Blocky 24-30 Clay Loam <35 10yr5/4 10y418,1 -6/10y Firm Strong Blocky <35 loose loose single grain 35-50 friable weak granular blocky firm moderate prismatic platy >50 rigid strong massive 1 hereby certify this work was completed in accordance with MN 7080 and any local reqs. Rusty Olson's Soil & Perc 810 16�6gner Signature Company License # Soil Observation Log www.SepticResource.com vers 12.4 Owner Information Property Owner / project: Hendel Homes Property Address / PID: 1775 Fax Street Date 3/8/2005 Soil Survey Information ❑ refer to attached soil survey Parent matl's: 0 Till ❑ Outwash ❑ Lacustrine ❑ Alluvium ❑ Organic ❑ Bedrock landscape position: ❑ summit ❑ Shoulder 0 Side slope ❑ Toe slope soil survey map units: 1.4102 slope 9 % direction- Concave -Convex Soil Log #6 0 Boring ❑ Pit Elevation 952.0 Depth to SHWT 24 Inches Depth (in) Texture fragment % matrix color redox color consistence grade shape 0-6 Topsoil <35 1Oyr3/2 Friable Moderate Blocky 6-18 Loam <� 5 I Oyr4/3 Friable Strong Blocky 18-24 Clay Loam <35 10yr5/4 Friable Strong Blocky 24- 30 Clay Loam <35 10yr5/4 lOy4/8,1-6/10y Firm Strong Blocky 35 loose loose single grain 35-50 friable weak granular blocky firm moderate prismatic platy >50 rigid strong massive Comments: Percolation Test Data Sheet Lic.#810 Percolation test readings made by: Rusty Olson's Perc. starting at 8:23 A.M. On 08116105 Location: Proposed Lot 3, Block 1 1745 Fox Street Hole number: 1 Date hole was prepared: 08/15/05 Depth of hole bottom —12"_ inches, Diameter of hole _6"_ inches. Soil data from test hole: Depth, inches 0-6" 6"-12" Soil texture Dark brown loam 10yr313 Brown loam 10yr414 Method of scratching side wall: Knife Depth of gravel in bottom of hole 2 inches: Date and hour of initial water filling 08/15/05 At 10:30 A.M. depth of initial water filling 12 inches above hole bottom. Method used to maintain at least 12 inches of water depth in hole for at least 4 hours Automatic Siphon Maximum water depth above hole bottom during tests 6 inches 8:33 8:48 6" 3.5 4.3 9:05 9:20 6" 3.4 4.4 9:21 9:36 6" 3.3 4.5 AVERAGE FERC, RATE 4.4 MPI Percolation Test Data Sheet Lic.#810 Percolation test readings made by: Rusty Olson's Perc. starting at 8:23 A.M. On 08/16/05 Location: Proposed Lot 3, Block 1 1745 Fox Street Hole number: 2 Date hole was prepared: 08/15105 Depth of hole bottom —12 inches, Diameter of hole 6"_ inches. Soil data from test hole: Depth, inches Soil texture 0-61" Dark brown loam 10yr313 6"-12" Brown loam 10yr414 Method of scratching side wall: Knife Depth of gravel in bottom of hole 2 inches: Date and hour of initial water filling 08115!05 At 10:30 A.M depth of initial water filling 12 inches above hole bottom. Method used to maintain at least 12 inches of water depth in hole for at least 4 hours Automatic Siphon Maximum water depth above bole bottom during tests 6 inches Time Time Depth Drop in H2O Perc Rate 8:34 8:49 6" 4.0 3.7 9:04 9:19 6" 3.7 4.0 9:22 9:37 6" 3.6 4.1 AVERAGE PERC. RATE 3.9 MPI Percolation Test Data Sheet Lic.#810 Percolation test readings made by: Rusty Olson's Perc. starting at 8:23 A.M. On 08/16/05 Location: Proposed Lot 3, Block 1 1745 'Pox Street Hole number: 3 Date hole was prepared: 08/15/05 Depth of hole bottom _12"_ inches, Diameter of hole _6"_ inches. Soil data from test hole: Depth, inches 0-6" 6'I-12" Soil texture Dark brown loam 10yr313 Brown loam 10yr4/4 Method of scratching side wall: Knife Depth of gravel in bottom of hole 2 inches: Date and hour of initial water filling 08/15/05 At 10:30 A.M. depth of initial water filling 12 inches above hole bottom. Method used to maintain at least 12 inches of water depth in hole for at least 4 hours Automatic Siphon Maximum water depth above hole bottom during tests 6 inches Time Time Deoth Droo in H2O Perc Rate 9:03 9:18 6" 3.6 4.1 9:23 9:38 6" 3.5 4.2 AVERAGE PERC. RATE 4.1 MPI Percolation Test Data Sheet Lic.#810 Percolation test readings made by: Rusty Olson's Perc. starting at 8:23 A.M. On 08/16/05 Location: Proposed Lot 3, Block 1 1745 Fox Street Hole number: 4 Date hole was prepared: 08115105 Depth of hole bottom—12"inches, Diameter of hole _6"_ inches. Soil data from test hole: Depth, inches Soil texture 0-6" Dark brown loam 10yr3/3 6"-12" Brown loam 10yr414 Method of scratching side wall: Knife Depth of gravel in bottom of hole 2 inches: Date and hour of initial water filling 08/15/05 At 10:30 A.M. depth of initial water filling 12 inches above hole bottom. Method used to maintain at least 12 inches of water depth in hole for at least 4 hours Automatic Siphon Maximum water depth above hole bottom during tests 6 inches Time Time Depth Drop in H2O Perc Rate 8:36 8:51 6" 3.2 4.7 9:02 9:17 6" 3.1 4.8 9:24 9:39 6" 3.0 5.0 AVERAGE PERC. RATE 4.8 MPI UNIVERSITY ° OF MINNESOTA Septic System Management pian 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 clean water! Property Owner Email Property Address 1175 Fox Street Property ID 0311723440007 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 800-322-8642. For more information see http://septic.umn.edu Version. August 2015 -1- UNIVERSITY Septic System Management Plan for Above Grade Systems OF MINNESOTA Your Septic System Cleanout IL—ii _Manhde ~� Pumq_. -- ... lift" lakW deanout_ CFass-.sedion of mooed Insp.--op.-- - Topsoil ___----;- .. vegetation_ ..: Send -- •', •,• Inspersion pipe _ _ _Perlptaw ppe �s _ Pism6ution meds Y Septic System Specifics System Type: e I 011 0111 OIV* 0 V* E system is subject to operating permit* (Based on MN Rules Chapter 7080.2200 — 2400) F-1 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 `:J N Business? : ©i Y ON What type? Soil Treatment Area (STA) Septic Tank El Inspection ports E] Cleanouts ❑ First tank Tank volume: 2250 gallons ❑ Pump Tank 1250 gallons Does tank have two compartments? (F)Y Q N ❑ Effluent Pump make/model; ❑ Second tank Tank volume: gallons Pump capacity GPM ❑ Tank is constructed of Concrete TDH Feet of head ❑ Effluent screen: Y 0 N Alarm aY 0 N ❑ Alarm location Soil Treatment Area (STA) Mound/At-Grade area (width x length): 43 ft x 89 ft El Inspection ports E] Cleanouts Rock bed size (width x length): 10 $ x 63 ft � Surface water diversions Location of additional STA: See drawing Type of distribution media; Rock � Additional STA not available -2- v E R �, �, Septic System Management Plan for Above Grade Systems OF MINNESOTA Al 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. Deep 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. • Lintfilter. 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 im „w 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 S 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. Cheek 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: 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 alter 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 MINNES©TA for Above Grade Systems 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: "Rs the owner of this 5STS, I understand it is my responsibility to properly operate and maintain the sewage treatment system on this property, utilizing the Management Pian. 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 4 01255 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, �+'T