HomeMy WebLinkAboutSE23-000004 New Home SepticJoseph Olson
Rusty Olson's--Soil and Percolation Testing
Joseph J. Olson--MPCA License #810
11481 Riverview Rd. NE, Hanover, MN 55341
763) 4988779 Cell (612296-771.5
Revised February 20, 2023
Norton Homes
800 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 16-24 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.
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 beeins.
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 water treatments stems 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
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MINNESOTA NORTON HOMES
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2011 purple code Mound Design
www.SepticResource.com {vers 22.21
Property Owner: Norton Homes Date: 2/20/2023
Site Address: 800 Lakeview Parkway PID: 0611723430020
Comments:
instructions: 0 = enter data 0 = adjust if desired = computer calculated - DO NOT CHANGE!
1) bedroom Type L. Residential System
2) 750 GPD design flow
3) Yes Garbage disposal or pumped to septic 50% larger tank with multiple comp/tanks
4) 2250 Gat Septic tank (code minimum) 2250 Gat Septic tank (design size / LUG req'd)
Tank options: Multiple tanks or compartments req'd
s) 1.2 GPD/ft2 mound sand loading rate contour loading rate of 12 req's a min 62.5 ft. long rockbed
6) 10.4 ft rockbed width b3.0 ft rockbed length
7) 3.0 ft lateral spacing 3.0 ft perforation spacing (maximum of 3 for both)
end feed manifold connection
8) laterals 61.0 feet long 21.0 perfs / lateral 63 perfs total
1/2 a perf means the first perf starts at the middle feed manifold)
9) 7132 inch perfs at 0feet residual head gives 0.56 gpm flow rate per perforation
771forthisperfsizeEtspacing, ft pipe size on line 12, max perfs/latera[ = 30 ,line #8 must be less > OK
io) F7 4.0 doses per day ( 4 minimum)
11) 188 gallons per dose (treatment volume)
12) 2.00 inch diameter Laterals must be used to meet 'Ax pipe volume" requirement
13) 50 feet of 2.0 inch supply line leads to =gallons of drainback volume
Tip: "top feed" manifold to control the drainback)
14) 197 gallons TOTAL pump out volume (treatment + drainback)
1s) 15 feet vertical lift from pump to mound Laterals, leads to a:
16) 36 GPM @ 23 feet of head, Pump requirement (note: >50gpm may require an extra 3-6' of head)
17) 750 gal Dose tank (code minimum) 1250 gat Dose tank (design size / LUG req'd) at 25.49 gpi
leads to a: IOptional Time dosing of:
18) 7.7 inch swing on Demand float, (this delivers Average flow, =70% of Peak design flow)
5.5 min ON
19) 72 inches from bottom of tank to "Pump OFF" float 8.5 hrs OFF
20) 20 inches from bottom of tank to "Pump ON" float 12 inches to "Timer ON" float
21) 23 inches from bottom of tank to "Hi Level" float 33 inches to "Hi Level" float
22) 664 gallons reserve capacity (after High Level Alarm is activated -demand dosed)
31)
O.bO gpd/ftz Absorption area Soil Loading Rate, which gives a mound ratio of (minimum)
this must match the soil boring log) desired mound ratio 2.0
11 percent site slope (0-20% range) 11 (% downslope site slope, if different than upslope)
14 inches, or 1.2 ft. to Redox or other limiting condition (need at least 12" to be a Type 1)
Treatment zone contains =0 inches of 0% soil credit, and =inches of 50% soil credit. Giving a:
22 inch, or 1.8 ft. Sand Lift Mound CRITICAL FOR FUTURE CERTIFICATIONSII I
20.0 ft.Total ABSORPTION width (with sand beyond rockbed as follows:)
0.0 Ift. upslope and sideslope
10.0 Ift. Downslope
Individual slope ratios give BERM widths (topsoil beyond rockbed) of:
4:1 upslope ratio 10 ft. upslope berm
3:1 sideslope 14 ft. sideslope berms
3:1 downslope 21 ft. downslope berm
Overall Dimensions: 10.0 ft. wide by 53.0 ft. long Rock bed
41 ft. wide by 1 91 ft. long Mound footprint
4" inspection pipe
r— 18" cover on top
Ui)slooe berm 10
1.8
Lirniting Condition
berm 1 21
12" cover on sides
6" loamy cap &.6" topsoil)
Clean sand Lift
Depth to Limiting
Absorotion Width F70.0 "- T — _ .I_.._ _ _. _ a _ _ —
Note:
For 0 to 1% slopes, Absorption Width is measured from the Bedequally in both directions.
For slopes ?1%, Absorptioa Width is measured downhill from the upslope edge of the & -d.
Rock Bed:
10.0 ft. by 53.0 ft, by inches under pipe, plus 20% gives =yd3 or *1.4= 2q ton
Mound Sand: (note: volume is based on 3:1/4:1 slope from top of rockbed, Exchange sand for loamy cap if desired)
34.3 up + 109.1 downslope + 17.2 ends + 55.6 under rock = 259 yd' or *1.4= 353 ton
plus 20%
Loamy Cap:
37 ft. by F 87 ft. 6" deep, plus 20% gives
Topsoil:
41 ft. by =ft. 6" deep, plus 20% gives
completed this work in acco
72 yd' or *1.4= 101 ton
83 yd' or *1.4= 116 ton
all applicable ordinances,
Rusty Olson's Soil it Perc 810 2/20/2023
re Company License# Date
Installer Summary
2250 gallon Septic tank (minimum) Tank options: Multiple tanks or compartments req'd
u70 Larger LanK wiLn muMpLe comp/ Lan Ks
1250 gallon Dose tank (minimum) at 25.49 gpi
36 GPM C 23 ft. of head, Pump required
7.7 inch swing on Demand float which translates to roughly T. 97 inches of float tether length
Optional Time dosing of:
24 linches from bottom of tank to "pump ON" float,
orM
hours OFF
23 inches from bottom of tank to "Hi Level Alarm" or inches to "timer ON" float
inches to "Hi level" float
50 ft. of 2.0 inch supply line with end feed manifold connection
Tip: "top feed" manifold to control drainback)
22 inch, or 1.8 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
7/32 inch perfs 3.0 ft. perforation spacing
No Effluent filter Et alarm
3 clean out li valve box assemblies
20.0 ft.Totai sand ABSORPTION width (minimum)
FT57 ft. upslope and sideslope (sand beyond rockbed, minimum)
14.0 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 14 ft. sideslope berms
3 1 downslope 21 ft. downslope berm
4" inspection pipe
1$" cover on top
Upslope berm 14 .
l b DownsloQe berm z1
12" cover on sides
6" loamy cap & 6" topsoil)
1.8 I I Clean sand lift
1 1.2 Depth to Limiting
Limiting Condition — — — — — -- — -- —
Absorption Width 20•0 —_------ --I-- - ---- _— _
Note:
For 0 to 196 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: 21.0 yd3 or *1.4= 29 ton
Mound Sand: 259 yd3 or *1.4= 363 ton
Loamy Cap: 72 yd3 or *1.4= 101 ton
Topsoil: 83 yd3 or *1.4= 116 ton
INSPECTOR CHECKLIST
8uu caKeview NarKway
6 inches under pipe
calculation based on 3:114:1 slope from top of rockbe
6" deep
6" deep
mound
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 St bounds: out of road easement, or outer ditch.
LAKE / BLUFF setback: 20' for bluff. Lakes: GD _, RD _, NE Protected wetland `.
Building setbacks: 10' for everything, 20' for dispersal area.
WATER LINE under pressure 10' to bed,tank Ft 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 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 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 23 head VERIFY PUMP CURVE 5.5 min ON 8.5 hr OFF
verify that installed "vertical lift from pump to laterals" is no more than design value of 15 feet
float setting drop 7.7 inches at 25.5 gpi "DESIGNED" 4.9 inches approx float tether length
197.0 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 / Hi Level Alarm
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 22 inches. (Jar test : 2" sand leaves < 1/8" silt after 30 min)
Absorption Sand beyond rock 0.0 upslope 10.0 downslope
F7 Bermed topsoil beyond rockbed 10 upslope 14 sideslope 21 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
F7/32 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
I
Re-use existing tank certification
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Property Owner / project:
Property Address / PID:
Soil Observation Log
www.Set)tioResourec.com vers 12.4
Owner Information
Norton Homes
800 Lakeview Parkway
Date 6/1/2014
Soil Survey Information refer to attached soil survey
Parent matl's: D Till Outwash Lacustrine Alluvium Organic Bedrock
landscape position: Summit Shoulder 0 Side slope Toe slope
soil survey map units: L41 U2 slope IU -11 % direction- Linear
Soil Log #1
121 Boring Pit Elevation 970.5 Depth to SHWT 20 inches
Depth (in) Texture fragment % matrix color redox color consistence grade shape
0-12 Loam 35 10yr3/1 Friable Strong Blocky
12-20 Loam 35 10yr4'3 Friable Strong Blocky
20-24 Clay Loam X35 10yr5/4 10y4/8,1-6/l0y Finn Strong Block
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 ptaty
rigid strong
massive
Comments:
800 Lakeview Parkway Soil Log #2
PI Boring Pit Elevation 970.6 Depth to SHWT 20 inches
Depth (in) Texture fragment % matrix color redox color consistence grade shape
0-12 Loam 35 10yr3/1 Friable Strong Stocky
12-20 Loam 35 10yr4/3 Friable Strong stocky
20-24 Clay Loam 35 10yr5/4 IOy4/8,1-6/10y Firm Strong stocky
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
800 Lakeview Parkway Soil Log #3
0 Boring Pit Elevation 974.2 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 Loam 35 14yr4/3 Friable Strong blocky
16-24 Clay Loam 35 10yr5/4 10y4/8,1 -6/10y Firm Strong Stocky
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 I
massive
1 hereby certify this work was completed in accordance with MN 7080 and any local reqs.
Rusty Olson's Soil & Perc 810
De-4gier Signature Company License #
800 Lakeview Parkway Soil Log 94
0 Boring Pit Elevation 974.1 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 Loam 35 10yr4/3 Friable Strong Blocky
16-24 Clay Loam 35 10yr5/4 lOy4/8,1-6/10y Firm Strong Blocky
35
loose loose single grain
35-50
friable weak granular blocky
50
firm moderate prismatic platy
rigid strong
massive
35
loose loose single grain
35-50
friable weak granular blocky
50
firm moderate prismatic platy
rigid strong
massive
800 Lakeview Parkway Soil Log 95
Z Boring Pit EIevation 967.9 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 IOyr4/3 Friable Strang Blocky
24-30 Clay Loam 35 1Oyr5/4 IOv4/8,1-61'10), Firm Strong Blocky
35
loose loose single grain
35-50
friable weak granular blocky
50
firm moderate prismatic platy
rigid strong
massive
35
loose loose single grain
35-50
friable weak granular blocky
50
Firm moderate prismatic platy
rigid I strong
massive
I hereby certify this work was completed in accordance with MN 7080 and any local reqs.
Rusty Olson's Soil & Perc 810
De4glCr Signature Company License #
Owner / project:
Address / PID:
Soil Observation Log
www.SeptieResource.com vers 12.4
Owner Information
Norton Homes
800 Lakeview Parkway
Date 6/1/2014
Soil Survey Information refer to attached soil survey
Parent matl's: r Till Outwash Lacustrine Alluvium Organic Bedrock
landscape position: Summit Shoulder L] Side slope Toe slope
soil survey map units: L41C 2 slope 10-11 % direction- Linear
Soil Log #6
D Boring pit Elevation 971.2 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 Loam 35 10yr413 Friable Strong Biocky,
16-24 Clay Loam 35 1Oyr5l4 IOy418,1-6110y Firm Strong Blocky
35
loose loose
single grain
35-50
friable weak granular blocky
50
firm moderate prismatic platy
rigid strong
massive
35
loose loose
single grain
35-50
friable weak granular blocky
50
fmn moderate prismatic platy
rigid strong
massive
Comments:
Percolation Test Data Sheet
Lic.#810
Percolating test readings made by: Rusty Olson's Perc. starting at 12:28 P.M. On 712114
Location: Lot 6 Blk 3
Hole number: 1
Date hole was prepared: 7/1/14
Depth of hole bottom 12", inches; Diameter of hole 6" inches.
Soil data from test hof;:
Depth, inches Soil texture
0-12" Dark Brown Loam 10yr312
Method of scratching side wall: Knife
Depth of gravel in bottom of hole 2 inches:
Date of initial water filling 711114 depth of initial water filling 12 inches above the 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
12:29 12:44 6" 1.7 8.8
12:51 1:06 6" 1.6 9.4
1:07 1:22 6" 1.6 9.4
AVERAGE PERC. RATE 9.2 MPI
Percolation Test Data Sheet
Lic.#810
Percolating test readings made by: Rusty Olson`s Perc, starting at 12:28 P.M. On 712114
Location: Lot 6 Blk 3
Hole number: 2
Date hole was prepared: 711114
Depth of hole bottom _12"_ inches, Diameter of hole 6" inches.
Soil data from test hole:
Depth, inches Soil texture
0-12" Dark Brown Loam 10yr3/2
Method of scratching side wall: Knife
Depth of gravel in bottom of hole 2 inches:
Date of initial water filling 711114 depth of initial water filling 12 inches above the 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
12:30 12:45 6" 0.7 21.4
12:50 1:05 6" 0.7 21.4
1:08 1:23 6" 0,7 21.4
AVERAGE FERC. RATE 21.4 MPI
Percolation Test Data Sheet
Uc.#810
Percolating test readings made by: Rusty Olson's Perc. starting at 12:28 P.M. On 712/14
Location: Lot 6 Blk 3
Hole Number: 3
Date hole was prepared: 711114
Depth of hole bottom — 12" inches, Diameter of hole 6" inches.
Soil data from test hole: '
Depth, inches Soil texture
0-8" Dark Brown Loam 10yr313
8-12" Brown Loam 10yr514
Method of scratching side wall: Knife
Depth of gravel in bottom of hole 2 inches:
Date of initial water filling 711114 depth of initial water filling 12 inches above the 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
12:31 12:46 6" 1.5 10.0
12:49 1:04 6" 1.5 10.0
1:09 1:24 6" 1.5 10.0
AVERAGE PERC. RATE 10.0 MPI
Percolation Test Data Sheet
Lic.#810
Percolating test readings made by: Rusty Olson's Perc. starting at 12:28 P.M. On 712114
Location: Lot 6 Blk 3
Hole number: 4
Date hole was prepared: 711114
Depth of hole bottom _12"_ inches, Diameter of hole 6" inches,
Soil data from test hole:
Depth, inches Soil texture
0-81, Dark Brown Loam 10yr3/3
8-12" Brown Loam 1Oyr54
Method of scratching side wall: Knife
Depth of gravel in bottom of hole 2 inches:
Date of initial water filling 711{14 depth of initial water filling 12 inches above the 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
12:32 12:47 6" 2.0 7.5
12:48 1:03 6" 1.9 7.9
1:10 1:25 6" 1.9 7.9
AVERAGE PERC. RATE 7.7 MPI
UNIVERSITY
6OFMINNESOTAii s -N,
Septic System Management Plan
for Above Grade Systems
The goal of a septic system is to protect human health and the environment by properly treating wastewater
before returning it to the environment. Your septic system is designed to kill harmful organisms and remove
pollutants before the water is recycled back into our lakes, streams and groundwater.
This management plan will identify the operation and maintenance activities necessary to ensure long-
term performance of your septic system. Some of these activities must be performed by you, the
homeowner. Other tasks must be performed by a licensed septic maintainer or service provider. However,
it is YOUR responsibility to make sure all tasks get accomplished in a timely manner.
The University of Minnesota's Septic System Owner's Guide contains additional tips and recommendations
designed to extend the effective life of your system and save you money over time.
Proper septic system design, installation, operation and maintenance means safe and clean water!
Property Owner Email
Property Address 800 Lakeview Parkway Property ID 0611723430020
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
UNIVERSITY Septic System Management Plan
OF
MINNESOTAfor
Above Grade Systems
Your Septic System
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Septic System Specifics
System Type: O I()" ()III OIV* () 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? ()Y NBusiness? : ()Y Q N What type?
Septic Tank
Q First tank Tank volume: gallons Pump Tank gallons
Does tank have two compartments? ()Y N Effluent Pump make/model:
Second tank Tank volume: gallons Pump capacity GPM
Q Tank is constructed of TDH Feet of head
Effluent screen: C) Y Q N Alarm ()Y O N Alarm location
Soil Treatment Area (STA)
Mound/At-Grade area (width x length): 41 ft x 91 ft
Rock bed size (width x length): 10 ft x 63 ft
Inspection ports Cleanouts
Location of additional STA: See drawing Surface water diversions
Type of distribution media: Rock Additional STA not available
2-
UNIVERSITY Septic System Management Plan
s
OF MINNESOTA
for Above Grade Systems
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 falter. 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
OF MINNESOTA
for Above Grade Systems AProfessionalManagementTasks ILS'
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
OF MINNESOTA
Septic System Management Plan
for Above Grade Systems
Water -Use Appliances and
Equipment in the Home
Appliance Impacts on System Management Tips
Uses additional water. Use of a garbage disposal is not recommended.
Adds solids to the tank. Minimize garbage disposal use. Compost instead.
Garbage disposal
Finely -ground solids may not settle. To prevent solids from exiting the tank, have your
Unsettled solids can exit the tank tank pumped more frequently.
and enter the soil treatment area. Add an effluent screen to your tank.
Washing several loads on one day Choose a front -loader or water -saving top -loader,
uses a lot of water and may overload these units use less water than older models.
your system. Limit the addition of extra solids to your tank by
Overloading your system may using liquid or easily biodegradable detergents.
Washing machine prevent solids from settling out in Limit use of bleach -based detergents and fabric
the tank. Unsettled solids can exit softeners.
the tank and enter the soil treatment Install a lint filter after the washer and an effluent
area. screen to your tank
Wash only full loads and think even -- spread your
laundry loads throughout the week.
Powdered and/or high -phosphorus Use gel detergents. Powdered detergents may add
detergents can negatively impact the solids to the tank.
Dishwasher performance of your tank and soil Use detergents that are low or no -phosphorus.
treatment area.
Wash only full loads.
New models promote "no scraping". Scrape your dishes anyways to keep undigestedTheyhaveagarbagedisposalinside. 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 maintenancehome) 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 -basedWaterfromthesesourceswill
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 Lag Ais,
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
nnually:
Water usage rate (maximum gpd
Caps: inspect, replace if needed
Water use appliances — review use
Other:
Monthly
Quarterly 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.
6-