HomeMy WebLinkAbout9-11-19 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 Fax (763) 498-8290
Revised September 11, 2019
Gonyea Homes
545 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 I2-16 inches (mottled soil). Due to the periodically
saturated soils, a pressurized mound system with 6 inches of rock will need to be installed to treat the septic
effluent. The bottom of the treatment area must be located at least 3' above the saturated soils. This system
is designed with 6 inches of rock.
The soils at a depth of 12" have a percolation rate averaging 10.1 MPI,
A 2250 -gallon septic tank 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.
The supply line under the driveway must be insulated and sleeved.
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.
Kee all heavy a ui ment off of the proposed treatment areas before during and after construction.
The area around both sites must be fenced off by the contractor before any construction begins.
With proper installation and maintenance, this system should have no problem in treating septic effluent
effectively. Nothing other than gray water, (laundry, showers, etc.) Human water and toilet tissue should be
disposed of into the septic tanks. Garbage disposals are not recommended. Iron filters cannot go into this
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.
Si y,
Joseph J. Olson
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2011 purple code Mound Design
www.5epticResource.com (vers 15.2)
Property Owner: Gonya Homes Date: 9/11/2019
Site Address: 545 Lakeview Parkway PID: 0611723320012
Comments:
instructions: F—� = enter data F-7 = 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
a) 2250 Gal Septic tank (code minimum) 2250 Gat Septic tank (design size / LUG req'd)
Tank options: none
5) 1.2 GPD/ft2 mound sand loading rate contour loading rate of12 req's a min 62.5 ft. long rockbed
6) 10.0 ft rockbed width 63.0 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 pert starts at the middle feed manifold)
ry 7/32 inch perfs at feet residual head gives 0.56 gpm flow rate per perforation
for this perf size & spacing, & pipe size on line 12, max perfs/lateral = 30 , line #8 must be less > OK.
10) 4.0 closes per day (4 minimum)
1 1) 188 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) 90 feet of 2.0 inch supply line leads to 15 gallons of drainback volume
(Tip: "top feed" manifold to control the drainback)
14) 203 gallons TOTAL pump out volume (treatment + drainback)
15) 14 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 gal Dose tank (design size / LUG req'd) at 25.49 gpi
leads to a
18) 8.0 inch swing on Demand float, or timed dosing of5.6 min ON (confirm pump rate with drawdown
(this delivers Average flow, =70% of Peak design flow) 9 hrs OFF test and adjust as necessary)
19)12 inches from bottom of tank to "Pump OFF" float
20) 20 inches from bottom of tank to "Pump ON" float, or12 inches to "Timer ON" float if time dosed
21) 23 inches from bottom of tank to "Hi Level" float, or F33 inches to "Hi Level" float if time dosed
22) 664 gallons reserve capacity (after High Level Alarm is activated)
0
31)
13'-)
0.45 gpd/ft2 Absorption area Soil Loading Rate, which gives a mound ratio of 2.7 (minimum)
(this must match the soil boring log) desired mound ratio 2.7
percent site slope (0-20% range) �(% downslope site slope, if different than upslope)
12 inches, or 1.0 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 Finches of 50% soil credit. Giving a:
24 inch, or 2.0 ft. Sand Lift Mound CRITICAL FOR FUTURE CERTIFICATIONS!!!
27.0 ft.Total ABSORPTION width (with sand beyond rockbed as follows:)
0.0 ft. upslope and sideslope
17.0 ft. Downslope
Individual slope ratios give BERM widths (topsoil beyond rockbed) of:
4:1 upslope ratio 14 ft. upslope berm
3:1 sideslope 13 ft. sideslope berms
4:1 downslope 21 ft. downslope berm
Overall Dimensions:
UDsloae berm
Limiting Condi
10.0 ft. wide by 63.0 ft. long Rock bed
45 ft. wide by 1 89 ft. long Moundfootprint
4" inspection pipe
r-- 18" cover on top
14
0 Clean sand lift
1.0 Depth to Limiting
_______._—$ __._z_
y Absorption Width
berm 21
12" cover on sides
(6" loamy cap & 6" topsoil)
27.0 1' — _ + - - — -
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 63.0 ft. by inches under pipe, plus 20% gives 21 yd' or *1.4= 29 ton
y Mound Sand: (note: volume is based on 3:1 /4:1 slope from top of rockbed, Exchange sand for loamy cap if desired)
48.2 up + 74.2 downslope + 12.1 ends + 50.2 under rock =222 ydj or *1.4= 310 ton
plus 20%
Loamy Cap:
41 ft. by 85 ft. 6" deep, plus 20% gives
Topsoi L•
[7T57 ft. by 89 ft. 6" deep, plus 20% gives
I hereby certify that I have completed this work in accordance
er Signature
Rusty Olson"s Soil Ix Perc
Company
78 yd' or *1.4=109 ton
89 yd' or *1.4= 125 ton
all applicable ordinances, rules and laws.
810
License#
9/11 /2f)19
uaLe
Installer Summary
2250 gallon Septic tank (minimum) Tank options: none
Duo targer LanK WIUI rnurLiRre camp/Lanres
1250 gallon Dose tank (minimum) at 25.49 gpi
36 GPM @ 23 ft. of head, Pump required
8.0 inch swing on Demand float which translates to roughly 5.0 inches of float tether length
if time dosing is required -->I 5.6 Iminutes ON time EtEEI hours OFF time
20 inches from bottom of tank to "pump ON" float, or 12 inches to "timer ON" float
23 inches from bottom of tank to "Hi Level Alarm" or L_13_j inches to "Hi level alarm" if time dosed
90 ft. of z.0 inch supply line with end feed manifold connection
(Tip: "top feed" manifold to control drainback)
24 inch, or 2.0 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 3A ft, lateral spacing
7/32 inch perfs 3.0 ft. perforation spacing
No Effluent filter Et alarm
3 clean out Et valve box assemblies
27.0 ft.Total sand ABSORPTION width (minimum)
0.0 ft. upslope and sideslope (sand beyond rockbed, minimum)
17.0 ft. Downslope (sand beyond rockbed, minimum)
Specific slope ratios give BERM widths (topsoil beyond rockbed) of:
4:1 upslope ratio 14 ft. upslope berm
3:1 sideslope13 ft. sideslope berms
4:1 downslope 21 ft. downslope berm
UDsloDe berm =
� Z.a
1y0
Limiting_ Condition
4" inspection pipe
r-- 18" cover on top
DownsloDe bene 21
12" cover on sides
(6" loamy cap & 6" topsoil)
Clean sand lift
Depth to Limiting
^—'
Absorption Width z7.o ---_ — ——--
Note:
For 0 to 1% slopes, Absorption Width is measured from the Bedequally in bath directions.
For slopes }1%, Absorption Wdth is measured downhill from the upslope edge of the Bed.
Rock Bed: 21.0 'yd or *1.4= 29 ton
Mound Sand: 222 yd3 or *1.4= 310 ton
Loamy Cap: 78 yd or *1.4= 109 ton
Topsoil: 89 yd or *1.4= 125 ton
inches under pipe
calculation based on 3:1/4:1 slope from top of rockbe
6" deep
6" deep
INSPECTOR CHECKLIST - mound
545 Lakeview Parkway
WELL setbacks: 20' to pressure tested sewer line (5 psi for 15 min)
50' to everything 100' to dispersal area with shallow well
PROPERTY LINES setback: 10' to everything
Road setback: platted: 10' prop line. Metes Et bounds: out of road easement, or outer ditch.
LAKE / BLUFF setback: 20' for bluff. Lakes: GD _, RD _, NE . Protected wetland _.
Building setbacks: 10' for everything, 20' for dispersal area.
WATERLINE under pressure sc 10' to bed,tank Et sewer line. (else sewer line > 12" below)
Sewer lige Et baffle connection (no 90's, 3' between 45's, slope min 1" in 8', max 2" in 8')
(no depth req's, 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 23 head VERIFY PUMP CURVE 5.6 min ON 9 hr OFF
float setting drop 8.0 inches at 25.5 gpi "DESIGNED" 5.0 inches approx float tether length
203.0 gal dose divided by gpi "INSTALLED" = inches float drop (field corrected
LABEL pump requirements and drawdown on riser or panel
Cam lock reachable from grade - 30" max. J -hook weep hole. Supply line access (no hard 90's)
2.0 inch supply pipe: Sch40, sloped 1/8"+, supported by 4" sch40 sleeve or compacted, and buried 6"+.
splice box / control panel / electrical connections
flow measurement: CT, ETM, time dosed, home water meter
mound absorption area rough up
mound rock dimensions 10.0 X 63.0
Sand lift depth 24 inches. (Jar test : 2" sand leaves < 1/8" silt after 30 min)
Absorption Sand beyond rock 0.0 upslope
Bermed topsoil beyond rockbed 14 upslope
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
7132 inch perforations
3.0 ft perforation spacing
17.0 downslope
13 sideslope 21 downslope
Air inlet at end of laterals, and at top feed manifold if necessary.
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
VERIFY
�Re-use existing tank certification
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Soil Observation Log
www.SepticResource.com vers 12.4
Owner Information.
Property Owner / project: Gonya Homes Date 9/10/2019
Property Address / PID: 545 Lakeview Parkway 6/1/2014
Soil Survey Information ❑ refer to attached soil survey
Parent matl's: Till ❑ Outwash [] Lacustrine D Alluvium ❑ Organic ❑ Bedrock
landscape position: ❑ summit ❑ Shoulder ❑ Side slope ❑ Toe slope
soil survey map units: L40B slope 3-11 % direction- Linear
Soil Log #1
Q Boring ❑ Pit Elevation 992.1 Depth to SHWT 12 inches
Depth (in) Texture fragment % matrix color redox color consistence grade shape
0-6
Topsoil
<35
10yr4/2
Friable
Moderate
Blocky
6-12
Clay Loam
<35
10yr5/4
Friable
Strong
1310A%
1? -24
Clay Loam
<35
10yr5/4
10y4/8,1 -6/10y
Firm
Strong
BIOLky
<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:
545 Lakeview Parkway Soil Log #2
21 Boring El pit Elevation 992.1 Depth to SHWT 16 inches
Depth (in) Texture fragment % matrix color redox color consistence grade shape
0-8
Topsoil
<35
10yr3/2
Friable
Moderate
Blocky
8-16
Clay Loam
<35
10yr4/4
Friable
Strong
131ocl<�
16-24
Clay Loam
<35
10yr5/4
10y4/8,1 -6/10y
Firm
Strong
Rlock�
<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
Istrong
Imassive
545 Lakeview Parkway Soil Log 93
❑J Boring El Pit Elevation 992.1 Depth to SHWT 12 inches
Depth (in) Texture fragment % rnatrix color redox color consistence grade shape
0-6
Topsoil
<35
10yr3/1
Friable
Moderate
Blocky
6-12
Clay Loam
<35
10yr4/3
Friable
Strong
Blocky
12-24
Clay Loam
<35
10yr5/3
10y4/8,1 -6/10y
Firm
Strong
Block,
<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
X50
rigid
strong
massive
I hereby certi this work was completed in accordance with
signer Signature
MN 7080 and any local reqs.
Rusty Olson's Sots & Pere 810
Company License #
545 Lakeview Parkway Soil Log #4
❑ Boring d Pit Elevation 989.8 Depth to SHWT 12 inches
Depth (in) Texture fragment % matrix color redox color consistence grade shape
0-8 Topsoil <35 1Oyr3/1 I Friable Moderate Blocky
8-12 1 Clay Loam 1 <35 1 1Oyr4/2
Friable StrongBlocky
12-20
Clay Loam
<35
1Oyr5/3
lOy4/8,1-6/10y
Firm
Strong
Blocky
loose
single grain
<35
granular blocky
moderate
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
545 Lakeview Parkway Soil Log #5
_
❑r Boring ❑ Pit Elevation 989.8 Depth to SHWT 12 inches
Depth (in) Texture fragment % matrix color redox color consistence grade shape
0-8
Topsoil
.,5
10yr3/1
Friable
Moderate
Blocky
8-12 Clay Loam <35
12-18 Clay Loam <35
<35
35-50
>50
<35
35-50
>50
1 Oyr4/3
I Oyr5/4
IOy4/8,1-6/10y IFirm
loose
friable
firm
rigid
loose
friable
Strong
Strong Blocky
loose
single grain
weak
granular blocky
moderate
prismatic platy
strong
massive
loose
single grain
weak
granular blocky
moderate
prismatic platy
strong
massive
I hereby ce ify this work was completed in accordance with MN 7080 and any local reqs.
Rusty Olson's Soil & Pere 810
esigner Signature Company License #
Soil Observation Log
www.SeptieResource.com vers 12.4
Owner Information
Property Owner / project: Gonya Homes Date 9/10/2019
Property Address / PID: 545 Lakeview Parkway 6/1/2014
Soil Survey Information ❑ refer to attached soil survey
Parent matl's: El Till ❑ Outwash ❑ Lacustrine ❑ Alluvium ❑ organic ❑ Bedrock
landscape position: ❑ Summit ❑ Shoulder 0 Side slope ❑ Toe slope
soil survey map units: L40B slope 3-11 % direction- Linear
Soil Log #6
21 Boring ❑ Pit Elevation 989.8 Depth to SHWT 12. inches
Depth (in) Texture fragment % matrix color redox color consistence grade shape
0-8
Topsoil
<35
10yr3/1
Friable
Moderate
Blocky
8-12
Clay Loam
-35
10yr4/3
Friable
Strong
Block\
12-18
Clay Loam
<35
10yr5/4
IOy4/8,1-6/10y
Firm
Strong
Block%
<35
loose
loose
single grain
35-50
friable
weak
granular blocky
>50
fine
moderate
prismatic platy
rigid
strong
massive
X35
loose
loose
single grain
35-50
friable
weak
granular blocky
firm
moderate
prismatic platy
>50
rigid
strong
massive
Comments:
UNIVERSITY>.
OF MINNESOTA
Septic System Management Plan
for Above Grade Systems
The goal of a septic system is to protect human health and the environment by properly treating wastewater
before returning it to the environment. Your septic system is designed to kill harmful organisms and remove
pollutants before the water is recycled back into our lakes, streams and groundwater.
This management plan will identify the operation and maintenance activities necessary to ensure long-
term performance of your septic system. Some of these activities must be performed by you, the
homeowner. Other tasks must be performed by a licensed septic maintainer or service provider. However,
it is YOUR. responsibility to make sure all tasks get accomplished in a timely manner.
The University of Minnesota's Septic System Owner's Guide contains additional tips and recommendations
designed to extend the effective life of your system and save you money over time,
Proper septic system design, installation, operation and maintenance means safe and clean water!
Property Owner Email
Property Address 545 Lakeview Parkway Property ID 0611723320012
System Designer ,Joseph J. Olson Contact Info 763-40$-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
-I-
UNIVERSITY
OF MINNESOTA
Septic System Management Plan
for Above Grade Systems
Your Septic System
Ali
Septic System Specifics
System Type: (�) I ()II ()III OIV* O V*
System is subject to operating pennit*
(Based on Aff Rules Chapter 7080.2200 — 2400)
System uses UV disinfection unit*
*Additional Management Plan required
Type of advanced treatment unit
Does tank have two compartments?
(F)y () N
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 flaw (gpd): 450
❑ Other (specify):
Comments
Distance from septic (ft):
Is the well on the design drawing? ()Y N
Business? : (> e N What type?
Soil Treatment Area (STA)
Septic Tank
El Inspection ports L] Cleanouts
❑ First tank Tank volume: 2250
gallons
❑
Pump Tank 1250 gallons
Does tank have two compartments?
(F)y () 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 @ N Alarm ()Y (j) N
❑
Alarm location
Soil Treatment Area (STA)
Mound/At-Grade area (width x length): 45 ft x 89 ft
10
El Inspection ports L] Cleanouts
Rock bed size (width x length): ft x 63 ft
F—] Surface water diversions
Location of additional STA: See Drawing
Rock
Type of distribution media:Ei
Additional STA not available
-2-
UNIVERSITY Septic System Management Plan
OF MINNESOTAfor 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 snake 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 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
Professional Management Tasks
These are the operation and maintenance activities that apumper/maintainerperforms 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.
g p hos p
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-
N I V ERS ITY 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.