HomeMy WebLinkAboutSeptic design - 2013 �vNo
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SERVICES
Swedlund Septic Services, Inc.
Septic Design
Prepared For: Mark Larson
366 N Arm Ln.
Orono, MN 55323
Site Address: Same as above
State Certified
25648 200`h Street • Belle Plaine, MN 56011 • 952-873-3292
�uN�
�O
SEPTIC SYSTEM DESIGN �
N
Date: 9/11/13
SERVICES
Owner/Builder:Mark Larson
Address: 366 North Arm Lane Orono, MN
Site Address: Same
Home Phone: 612-819-0973
The following information has been compiled for a single family home:
Bedrooms 3 GPD 450 Garbage Disposal Np Lift Pump in Basement No
Septic Tank Capacity 225p Pump Tank Capacity
System Type: Mound Trench
Distribution: Gravity Pressure Land Slope
Depth to Limiting Layer Soil sizing factor Perc Rate
Trench System: Drainfield Size/Sq. Ft. 269� Lineal Ft. 92'
SB2 Number of Laterals 4 Rock(Tons)
Rock Width 3' Max Trench Depth 1' Width
Mound System: Rock Bed Sand Layer
Upslope Downslope Sideslope
Sand Depth Topsoil on Site Trucked in
Sand (Tons) Rock(Tons) Topsoil (Tons)
Pump Manufacturer: _Goulds
Requirements:
GPM Head
Force Main Length Diameter
Number of Laterals Length
25648 200th Street • Belle Plaine, MN 56011 • 952-873-3292
STATE CERTIFIED
Svstem S�ecifications
Pump Tank:
• A 2.5 inch electrical conduit is to be used for the pump cords
• The piping is to accessible from ground level for future repair
• The supply line leaving the tank is to be sleeved over any
excavated ground in 4" sch 40 PVC and sealed with a 4� Fernco
• The floats are to be installed on a float tree
• The pump must be placed on a pump block
• A minimum of a 1/4" drainback hole must be drilled in the supply
line to avoid freezing
Blow-outs are to be installed on the ends of all pressure lines
An "Effluent Filter" is to be installed in the outlet of the second tank. It
should be easily accessible from the ground surface for cleaning. The
effluent filter will be equipped with an alarm.
All run-off water is to be diverted away from the tanks and drainfield
areas
Plastic bolt down manhole covers are to be used and left at grade level
for maintenance access.
Pressure rate glue joint fittings must be used.
If the septic tanks are less than 2' deep the covers are to be insulated
with 2" high-densitv foam
It is the installer's responsibility that all sewerlines leaving the structure
have been connected to the new system
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MlnnesotaPollution OSTP Design Summary Worksheet UNIVERSITY
Ca�trol Agency
OF MINNESOTA
Property Owner/Client: Mark Larson Project ID:��05.31.13
Site Address: 366 N.Arm Lane Orono,MN Date: 9/11/13
1. DESIGN FLOW AND TANKS
A. Design Flow: 450 Gallons Per Day(GPD) Note: The estimated design flow is considered a peak flow rate
including a safety factor.For long term performance,the averaqe
B. Septic Tanks: daily flow is recommended to be<60%of this value.
Minimum Code Required Septic Tank Capacity: 2000 Gallons,in �Tanks or Compartments
Recommended Septic Tank Capacity: 2250 Gallons,in �Tanks or Compartments
Effluent Screen: Yes p�a�; Yes
C. Holding Tanks Only:
Minimum Code Required Capacity:�Gallons,in �Tanks
Designer Recommended Capacity:�Gallons,in �Tanks
Type of High Level Atarm:
D. Pump Tnnk 1 Capacity(Code Minimum): 500 Gatlons Pump Tank 2 Capacity(Code Minimum): �Gallons
Pump Tank 1 Capacity(Designer Rec): 1000 Gallons Pump Tank 2 Capacity(Designer Rec): �Gallons
Pump 1 21.0 GPM Total Head 16.8 ft Pump 2�GPM Total Head �ft
Supply Pipe Dia. 2.00 in Dose Volume: 130.0 gal Supply Pipe Dia.�in Dose Volume:�gal
2. SYSTEM TYPE
Type of Soil Treatment and Dispersal Area* r
Q T►ewi O eea O Mw,�d I O�'ob�unon p�e o�trb�a�-tsvd O�e as�utloo-u�ra�d
O�P O Holding Tank O��� •Selection Required Benchmark Elevation: 100.0 ft
Benchmark Location: Original Tank
System Type Type of Distribution Media:
�Type 1 ❑Type II ❑Type I II �Type IV ❑Type V ❑�infleld Rock ❑Registered Trea6nem Media:
Rock
3. SffE EVALUATION:
A. Depth to Limiting Layer: 48 in 4.0 ft B. Measured Land Slope%: 2.0 %
C. Elevation of Limiting Layer: 89.0 D. Soil Texture: Loam
E. La.of Restricive Elevation: Center of Rockbed F. Soil Hyd.Loading Rate: 1.67 GPD/ft�
G. Minimum Required Separation: 36 in 3.0 ft H. Perc Rate: 30.0 MPI
I. Code Maximum Depth of System: 12 in Comments:
4. DESIGN SUMMARY
Trench Design Summary
Dispersal Area 269 ftz Sidewall Depth 12 in Trench Width�in
Total Lineal Feet 92 ft Number of Trenches� Code Maximum Trench Depih 12.0 in
Contour Loading Rate�ft Designers Max Trench Depth�in
Bed Design Summary
Absorption Area�ft� Media Below Pipe�in Code Maximum Bed Depth�in
Bed Width�ft Bed Length�ft Designers Max Bed Depth�in
��
MlnnesotaPollution OSTP Design Summary Worksheet UNIVERSITY
����y OF MINNESOTA
Mound Design Summary
Absorption Area�ftz Bed Length�ft Bed Width�ft
Absorption Width�ft Clean Sand Lift�ft Berm Width (0-1%)�ft
Upslope Bertn Width�ft Downslope Berm Width �ft Endslope Berm Width�ft
Total System Length�ft Total System Width�ft Contour Loading Rate�gal/ft
At-Grade Design Summary
Absorption Bed Width�ft Absorption Bed Length�ft System Height�ft
Contour Loading Rate�gal/ft Upslope Berm Width�ft Downslope Berm Width�ft
Endslope Berm Width�ft System Length�ft System Width�ft
Level&Equal Pressure Distribution Summary
No.of Perforated Laterals� Perforation Spacing�ft Perforation Diameter�in
Lateral Diameter�in Min.Delivered Volume�Sal Maximum Delivered Volume�gal
Non-Level and Unequal Pressure Distribution Summary
Elevation Pipe Volume Pipe Length Perforation Size
(ft) Pipe Size(in) (gal/ft) (ft) (in) Spacing(ft) Spacing(in)
Lateral 1 Minimum Delivered Volume
Lateral 2 ��al
Lateral 3
Lateral 4 Maximum Delivered Volume
Lateral 5 ��al
Lateral 6
5, Additional Info for Type IV/Pretreatment Design
q, Cnlculate the organic loading using option 1 or 2
1. Orgonic Loading =Pounds of BOD X Units
lbs/day X � _ �lbs BOD/day
2. Orqanic Looding to Pretreatment Unit =Design F(ow X Estimated BOD in mg/L in the effluent X 8.35:1,000,000
gpd X �mg/L X 8.35�1,000,000= �Ibs BOD/day
B.Type of Pretreatment Unit Being Installed:
C. Calculate Soil Treotment System Organic Loading: Ibs.BOD/day:Bottom Areo =lbs/day/ftZ
lbs/day� �ftZ= �lbs/day/ftZ
Comments/Special Design Considerations:
i hereby certify that I have completed this work in accordance with all applicable ordinances,rules and laws.
Swedlund Septic 2502 9/11/13
(Designer) (Signature) (License#) (Date)
UNIVERSITY OSTP Soil Observation Log
OF MINNESOTA Project ID: v 05.31.13 Z,�- -
Client/ Address: 366 North Arm Ln. Orono MN Legal Description/ GPS:
Soil parent material(s): (Check all that apply) ❑ Outwash❑ Lacustrine � Loess ❑� Till ❑ Alluvium ❑ Bedrock ❑ Organic Matter
Landscape Position: (check one) ❑ summit ❑ snoulder❑ sack/side slope ❑ Foot slope ❑ Toe Slope Slope shape LL
Vegetation Gras Soil survey map units 41C2 Slope% 9.0 Elevation: 93
Weather Conditions/Time of Day: Cloudy Afternoon Date
Observation #/Location: B1 Observation Type: Auger
Rock I-------- Structure-----------I
Depth (in) Texture Frag. % Matrix Color(s) Mottle Color(s) Redox Kind(s) Indicator(s) Shape Grade Consistence
0-24 Loam <35% 10YR 2/2 Blocky Moderate
-__- ---- __ - - __�_
i I ' II
i
24-50 Loam � <35% 10YR 4/3 10YR 6/2 Depletions S1 Blocky Moderate � Firm
I '
�
+ _ _- --— -- --
�
I �
Comments Redox found at 50"
I hereby certify that I have completed this work in accordance wit all applicable ordinances, rules and laws.
Swedlund Septic 2502 9/11/13
(Designer/Inspector) (Si nature) (License#) (Date)
Additional Soil Observation Logs `�ONSITIC^^`„,*^ _ . ;� -
SFwn�E
TFtFATMFN i'
PI�O�eC� ID. PROGRAM A \��
L'L
Client/ Address: 366 North Arm Ln. Orono MN Legal Description/ GPS:
Soil parent material(s): (Check all that apply) ❑ Outwash � Lacustrine ❑ Loess ❑✓ Till ❑ Alluvium ❑ Bedrock � Organic Matter
Landscape Position: (check one) ❑ summit� snoulder ❑ Back/Side Slope ❑ Foot slope ❑ Toe slope Slope shape
Vegetation Grass Soil survey map units LA Slope% 0.0 Elevation: 93
Weather Conditions/Time of Day: Date 07/25/13
Observation #/Location: B2 Observation Type: Auger
Depth (in) Texture Rock Matrix Color(s) Mottle Color(s) Redox Kind(s) Indicator(s) I--------Structure-----------I
Frag. % Shape Grade Consistence
0-14 Loam <35% 10YR 2/2
14-30 Silt Loam <35% 10YR 4/4 10YR 5/1 I
30-48 Sandy Loam <35% 10YR 5/6 10YR 6/2 Depletions S1
Comments Redox Found at 48" I
Observation#/Location: B3 Observation Type: Auger
Depth (in) Texture Rock Matrix Color(s) Mottle Color(s) Redox Kind(s) Indicator(s) I-------- Structure-----------I
Frag. % Shape Grade Consistence
0-9 Loam <35% 10YR 2/2
9-18 Loam <35% 10YR 4/4
18-38 Loam <35% 10YR 4/6
38-48 Silt Loam <35% 10YR 6/2 10YR 6/2 Depletions S1
�
Comments Redox found at 48"
Textures: Subsoil Indicator(s)of Saturation: Consistence:
c-clay S1. Distinct gray or red redox features Loose- Intact specimen not available
sic-silty clay 52. Depleted matrix (value >/=4 and chroma </=2) Friable- Slight force between fingers
sc-sandy day S3. 5Y chroma </= 3 Firm- Moderate force between fingers
S4. 7.5 YR or redder faint redox concentrations or redox depleti Extremelv Moderate force between hands or slight
d-clay loam firm- foot pressure
sicl-silty clay loam If yes to one of the above indicators then: RiQid- Foot pressure
sd-sandy day loam Topsoil Indicator(s)of Saturation: Slope Shape:
si-silt T1. Wetland Vegetation Slope shape is described in two directions: up and down slope
sil-silt loam "Sand Modifiers T2. Depressional Landscape (perpendicular to the contour), and across slope (along the
l-loam co-coarse T3. Organic texture or organic modifiers horizontal contour); e.g. Linear, Convex or LV'.
sl-sandy loam* m-medium T4. N 2.5/ 0 color � _ _ -
_ �
ls-loamy sand* f-fine T5. Redox features in topsoil ' ' •
s-sand` vf-very fine T6. Hydraulic indicators � '_'� � � • �,�''��-�
Soil Structure � "� • -� i
Grade: ;�
y-,
Massive- No observable aggregates, or no orderly arrangement of natural lines of weakness . - -"�� r"'=-�', . `
Weak- Poorly formed, indistinct peds, barely observable in place , i �'ti � �.'� `Y •
Moderate- Well formed, distinct peds, moderately durable and evident, but not distinct in "�.,-'"� '� � "
StronQ- Durable peds that are quite evident in un-displaced soil, adhere weakly to one another, ;—,-,,_� '.-_ - • v� `
withstand displacement, and become separated when soil is disturbed ; '� � ' , ,� � �
Landsca e Positlon: • • -y ��. .. � � � 1 .
Loose- No peds, sandy soil � , -- ., � -�Z,r"
Sttaunaa[
Shnttldrr
rr�� ♦
Soil Structure s,�k s.ae � � _���- •� � �
... .,,•. .
Foot si�u� _ . .,.. � - ,
Shape: -__ r��s�o,��
Granular- The peds are approximately spherical or polyhedral and are commonly found in topsoil. These are the small, rounded peds that hang onto roots
Platy_ The peds are flat and plate like. They are oriented horizontally and are usually overlapping. Platy structure is commonly found in forested
Block - The peds are block-like or polyhedral, and are bounded by flat or slightly rounded surface that are casting of the faces of surrounding peds.
Prismatic- Flat or slightly rounded vertical faces bound the individual peds. Peds are distinctly longer vertically, and faces are typically cast or molds of
SinQle Grain•The structure found in a sandy soil. The individual particles are not held together.
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
arganisms 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 Mafk Lal"SOCI
Property Address 366 North Arm Ln Orono, MN Property ID
System Designer Swedlund Septic Phone 952-873-3292
System Installer Phone
Service Provider/Maintainer Swedlund Septic Phone g52-873-3292
Permitting Authority Phone
Permit# Date Inspected
Keep this Management Plan with your Septic System Owner's Guide. The Septic System Owner's Guide
includes a folder designed to hold maintenance recards including pumping, inspection and evaluation
reports. Ask your septic professional to also:
• Attach permit information, designer drawings and as-builts 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,call 1-800-876-8636 or go to http://shop.extension.umn.edu/
http://septic.umn.edu
Version ll/03/2010
- 1 -
Septic System Management Plan `
UNIVERSITY �
for Above Grade Systems
OF MINNESOTA
Your Septic System �
❑ ❑ -----���
Manhole
. InSpec�ior���p��
�"'�.�:. ,,?�?r
_ � -__
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��ump i,n6.-- __- �� _;.- _- . . �� �.�_,.'�`
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tateral des�out.--'�' � ��.
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Septic System Specifics
� System is subject to operating permit*
System Type:Q. I�II �III�IV*Q V* � System uses UV disinfection unit*
(Based on MN Rules Chapter 7080.2200—2400) Type of advanced treatment unit
*Additional Management Plan required
Dwelling Type Well Construction
Number of bedrooms: 3 Well depth(ft): '100'
System capacity/design flow(gpd): 450 � Cased well Casing depth: N/A
Anticipated average daily flow(gpd): 450 � Other(specify):
Comments Distance from septic (ft):
Business? What type? Is the well on the design drawing?QY Q N
Septic Tank
One tank Tank volume: gallons Pump Tank gallons
Does tank have two compartments?OY QN ❑ Effluent Pump make/model:
� Two tanks Tank volume: 1000 gallons Pump capacity GPM
❑ Tank is constructed of TDH Feet of head
Effluent Screen rype: ❑ Alarm location
Soil Treatment Area (STA)
Mound/At-Grade area(width x length): _ft x _ft � Cleanouts or inspection ports
Rock bed size(width x length): 12 ft x �ft � Surface water diversions
Location of additional STA: Additional STA not available
- 2 -
Septic System Management Plan �
UNIVER�ITY forAbove Grade Systems '
OF MINNESOTA �
��.,�
Homeowner Management Tasks
These operation and maintenance activities are your responsibility. Use the chart on page 6 to track
your activities.
Identify the service intervals recommended by your system designer and your local government.
The tank assessment for your system will be the shortest interval of these three intervals. Your
pumper/maintainer will determine if your tank needs to be pumped.
System Designer: check every 36 months
My tank needs to be checked
Local Government: check every 36 months
every 36 months
State Requirement: check every 36 months
Seasonally or several times per year
• Leaks. Check(listen, look)far leaks in toilets and dripping faucets. Repair leaks promptly.
• Surfacing sewage. 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, call
your service professionaL Untreated sewage may make humans and animals sick.
• Alarms. Alarms signal when there is a problem; contact your maintainer any time the alarm
signals.
• Lint filter. If you have a lint filter, check for lint buildup and clean when necessary. Consider
adding one after washing machine.
. Effluent screen. If you do not have one, consider having one added the next time the tank is
cleaned.
Annually
• Water usage rate. A water meter can be used to monitor your average daily water use. Compare
your water usage rate to the design flow of your system (]isted 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.
. Review your water usage rate. Review the Water Use Appliance chart on Page 5. Discuss any
major changes with your pumper/maintainer.
During each visit by a pumper/maintainer
. Ask if your pumper/maintainer is licensed in Minnesota.
. Make sure that your pumper/m;�intainer services the tank through the manhole. (NOT though a 4"
or 6"diameter inspection port.)
. Ask your pumper/maintainer to accomplish the tasks listed on the Professional Tasks on Page 4.
- 3 -
UNIVERSITY Septic System Management Plan
�.
for Above Grade Systems
OF MINNESOTA �
�
Professional Management Tasks
These are the operation and maintenance activities that a pumper/maintainer performs to help ensure
long-term performance of your system. Professionals should refer to the O/M Manual for detailed
checklists for tanks,pumps, alarms and other components. Call 800-322-8642 for more details.
. Written record provided to homeowner after each visit.
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 TanWPump 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 drainfield.)
• Inspection pipes. Replace damaged 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 operating properly.
. Event counter or run time. Check to see if there is an event counter or run time log for the pump.
If there is one, calculate the water usage rate and compare to the anticipated average daily flow
listed on Page 2.
Soil Treatment Area
. Inspection pipes. Check to make sure they are properly capped. Replace caps that are damaged.
• Surfacing of effluent. Check far surfaced effluent or other signs of problems.
. Lateral flushing. Check lateral distribution; if cleanouts exist, flush and clean as needed.
• Ponding. Check for ponding. Excessive ponding in at-gade and mound beds indicates
problems.
All other components—inspect as listed here:
- 4 -
UNIVEIZSITY Septic System ManagementPlan ��
for Above Grade Systems
OF MINNESOTA
Water-Use Appliances and 'L'�,,�"
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 a liquid or easily biodegradable detergents.
Washing machine Prevent solids from settling out in . Install a ling filter after the washer and an effluent
the tank.Unsettled solids can exit screen on your tank.
the tank and enter the soil treatment � Wash only full loads.
area. . Limit use of bleach-based detergents.
• Think even—spread your laundry loads
throughout the week.
• The rapid speed of water entering • Install an effluent screen in the septic tank to
2"a floor laundry the tank may reduce performance. prevent the release of excessive solids to the soil
treatment area.
• Be sure that you have adequate tank capacity.
• 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
Large bathtub overload your system. same time.For example,don't wash clothes and
(whirlpool) • Heavy use of bath oils and soaps can take a 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 into a sump pump or directly out
furnace during cold weather. of the house.Do not route furnace recharge to
your septic system.
• Salt in recharge water may affect • These sources produce water that is not sewage
Water softener system performance. and should not go into your septic system.
Iron filter . Recharge water may hydraulically . Reroute water from these sources to another
Reverse osmosis overload the system. outlet,such as a dry well,draintile or old
drainfield.
• Water from these sources will likely • When replacing consider using a demand-based
Surface drainage overload the system. recharge vs.a time-based recharge.
Footing drains . Check valves to ensure proper operation;have
unit serviced per manufacturer directions
- 5 -
Septic System Management Plan `
UN I VERS ITY for Above Grade Systems
OF MINNESOTA �
�
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
Check annually:
Water usage rate(monitor frequency�
Caps: inspect, replace if needed
Water use appliances—review use
Other:
Notes:
Mitigation/corrective action plan:
"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 Si nature: Date
Management Plan Prepared By: SWedIU11CI S@ptlC Certification# 25�2
Permitting Authority•
�2010 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 altemative formats upon request. Contact the Water Resources Center,612-624-9282. The Onsite Sewage
Treatment Program is delivered by the Universiry of Minnesota Extension Service and the University of Minnesota Water Resources Center.
- 6 -
UNIVERSITY OSTP Preliminary Evaluation Form
OF MINNESOTA
1.ConWct InformaHon v 05.31.13
Property OwneNClient: Mark Larson CUent Phone Number: �63-479•5268
AAailing Address 366 North Artn Lane,Orono.MN Project ID:
Site Address Same Legal DescripHon
ParcellD: Latltude Longitude
Evaluallon for system type ❑��^ ���f1B"t Date SeP����.2013
2. Flow Information
C ient-Pr d In orma on
Type(s)of use(all that app/y) �'Res�de"na� ❑c°"n'e"�a� �`(�ry)
No.of bedrooms'(if appUcable) 3 Unfinished space (ft�)
No.of residents in home �Adults �Children �Teenagers ❑�re
Existing flow meawrementr �'es(�f Yg,aaach reaangs) �rio
QGarbage Dkposal +❑WaOer SofOena' ❑Iron FBte•
Water-using devices(check all that ��'W��` �sump aump� Other(speci(y�
aPP�Y) �anx eaMn,b/�x�i QHlgh Effkkncy Furrete'
❑Laundry/Large Tub on 2nd Hoor �Ma T�b' •Clear water source
Water use concems(check all that �FauceQ/iolkt LeeAs ❑MuRlpk Loads of laundry/Day QLong-Term Prescrlptlon MedS ❑Use W A�-Bat[erlal Soap
npPly) ❑IrrHome Buskrss QNo LIM Streen QFrequeM Enletalning of Ou[oFTown Guesls
Any additlonal current or future uses on this parcel(speciJy)
Any non•sewage discharges W system (spedfy)
Sewage eJector or grinder pump in homeT Q''g �No
I acknowledge the above is canplete and accurote (Client(s)signature and date)
Designardetermined Flow Information
A.Erttmated Design Flow(gallons per day) 450
Antldpated waste strength vaWes: �D0R1�S°p"gn' ❑H�gh strcigth BOD: mg/L
CBOD:�mg/L (T55):�mg/L 0&G:�mg/L
3. PreUmtnary Site Informatlon
B(1).Water supply well(s)within 100 ft of abwrption area ❑Y"S '❑N°
Well(s)were located ❑�a��^'e�^ ��H�"/ell lndac Maps ❑versona�communkation AAN Unique Well Id#: �
Depth of well(s) 100'+ ft Well casing depth(s) N/A ft Source�
Impervious Layer �� ❑�'g If Yes,Define&Source: Required Setback: �ft
B(2).Ske wlthin 200 ft of noncommunity Vansient supply well �g �° Source MN Dept.Health
B(3).Site wltMn a drinMng water wpply management area ❑�P5 �'No Source MN Dept Health
B(4).Location of all euisting and propased buildings and improvements an lot(see Site Evaluation map)
B(5►.Buried water supply pipes wlthln 50 ft of proposad system ❑Yg ❑�No
C.Location of all easements on lot(see Site E�roluatlon map) Source
D.Elevation of ordinary high water level(OWHL)-MN DNR(if adjacmt to parcel)
E.Floodplain designation and flood elevallon Source �
F.Datarmtne property lines(see S�te Evaluatlon map) ❑S�^'n' ❑wa�Map �r
Site located in a shoreland disWd/area ❑No �'es,name:
G.Distance of sMbacks �ProD�Y�� ❑�� �'Nater Supply Pipes
❑otha Bulldings QEesemmis ❑WdKs)
UNIVERSITY OSTP Preliminary Evaluation Form
OF MINNESOTA
H.Sail Survey Informallon(from web soil survey� �Mav Map Units on Parcel L41C2
List landfortns Moraines Slope Range 6 to 12%
Parent materials-check all tlwt opp/y Landfortn Position(check all that opply)
Qi TIII ❑Colwium ❑lacustrine �Allwlum �CuyFifl QSummi[ ❑ShoWda QBaclabpe �Foofslope �PWIn
❑o�m.�n ❑��S ❑eea� ❑or��c ❑oe�b� ❑sa�m�reRa« pw�� prce swx
MiMmum bedrock depth:�inches Minimum bedrock depth:❑inches
Maximum bedrxk depth:�inches Maximum bedrock depth:❑inches
SepNc Tank Absorptton Field-Trench(AAN)
Map Unit Ratings Septic Tank Absorption Field-At•grade(MN)
Septic Tank Absorptlon Field-Nbund(MN)Very Limited
4. Prellminary Soil Proflle Informatian(/rom we6 soil survey-m�
Enter information here or attach map and description.
Map Unit Other
pepth Texture(s) Structure(s) Consistence Restrfctions Color
Horizon 1
Horizon 2
Horizon 3
Horizon 4
Hortzon 5
Map Unit Other
pepth Texture(s) Strudure(s) Consistence Restrictions Color
Horizon 1
Horizon 2
Horizon 3
Horizon 4
Horizon 5
Map Unit Other
Depth Texture(s) Structure(s) Consistence Restrictions Color
Horizon t
Horizon 2
Horizon 3
Horizon 4
Horizon 5
AAap Urrit Other
pepth TexWre(s) Structure(s) Consistence ResMctions Color
Horizon 1
Horizon 2
Horizon 3
Horizon 4
Horizon 5
5. Lxal Wvernment Unk Informatlan
Name of LGU LGU Contact
LGU-specific setbacks
LGU-spectfic design requirements
LGU-specific installaHon requfrements
I hereby certify that I have completed this work in accordance with all applicable ordinances,rules and laws.
(Designer) (SignaWre) (Licrose#) (Date)
� OSTP Trench Design
UNIVERSITY
Minnesota Pollutbn Worksheet OF MINNESOTA
Control Agency
1. SYSTEM SIZING: Project ID: v 05.31.13
A. Design Flow: 450 GPD
B. Code Maximum Depth: 12 inches Designers Maximum Depth:�inches
C. Soil Loading Rate: 1.67 GPD/ftZ Contour Loading Rate: �8a1/ft
D. Required Bottom Area: Design Flow(1.A)=Loading Rate(1.C)= Initial Required Bottom Area
450 GPD= 1.67 GPD/ftZ = 269 ftZ
E. Select Dispersal Media: ❑ROCk
(selection required) �Registered Product
F. Select Distribution Method: ❑PI'255U�@ �Gravity-Drop Box
O Gravity-Other Chamber
G. If distribution media is installed in contact with sandy or loamy sand or with a percolation rate of 0.1 to 5 mpi
indicate distribution or treatment method:
2. TRENCH CONFIGURATION: ROCK
p. Initial required Sidewall Design
trench bottom area Absorption Bottom Area Bottom Area trench 1 �` �
(ftZ): (from 1.D) (inches) Reduction Multiplier bottom area
Cover
6to11 1
Q W Distribution
12 to 17 20% 0.8 ��'����
18 to 23 34% 0.66 srdewau
24 40% 0.6
B. Select Sidewall Height: �inches = �ft wtdth
C. Design Bottom Area(2.A): �ftZ
D. Select Trench Width: �ft
E. Total Designed Trench Length: Bottom Area =Trench Width =Total Required Trench Length
�ftZ �C� ft= �ft
I. Calculate Minimum system length based on Contour Loading Rate: Design Flow =Contour Loading Rate =
���-��al/ft = �ft
F. Select No. of Trenches: �trenches
G. Select Trench Spacing: �ft (typically 5- 12 ft from center to center)
H. Calculate Lawn Area: Trench Length(2.E)X Trench Spacing(2.G)=square feet of lawn area
� ft X�ft = �ftZ lawn area
J. Select Depth Required to Cover Distribution Pipe:
�ft (0.33 ft for pressure,0.5 ft for gravity)
K. Calculate Rock Volume: (Sidewall Height(2.6)+Depth to Cover Pipe(2.J))X Bottom Area(2.C)=cubic feet
( �ft +�ft) X�ftZ =�ft3
Divide ft3 by 27 ft3/yd3 to calculate cubic yards:
�ft3 + 27 = �yd3
3. TRENCH CONFIGURATION: REGISTERED PRODUCTS-CHAMBERS AND EZFLOW
p, Initial required Sidewall gottom Area Bottom Area Design
trench bottom area Absorption trench
Z Reduction Multiplier
(ft ): (from 1.D) (inches) bottom area
6 to 11 1 269
12 to 17 20% 0.8 216
269
18 to 23 34% 0.66 178
24 40% 0.6 162
B. Registered Product:
C. Select Sidewall Height: 12 inches = 1.0 ft
D. Design Bottom Area(3.A): 269 ftZ
E. Registered Width: �ft
F. Minimum Designed Trench Length=Bottom Area (3.C)=Trench Width(3.D)
269 ft2 T 3.0 ft= 90 ft
G. Enter the Registered Product Component Length: �ft
H. Number of Components=Minimum Total Length Required divided by Component Length(Round up)
90 ft: � ft= 23 components
I. Actual Total Trench Length= Number of Components X Component Length:
23 components X 4.0 ft = 92 ft
J. Calculate Minimum length per trench based on Contour Loading Rate: Design Flow:CLR=
�gpd=�gal/ft = #VALUE! ft
K. Select No. of Trenches: �trenches
L. Length per trench=Actual Trench Length =Number of Trenches. Recommended to not exceed 3.J.
92.0 ft: �gal/ft = 23.0 ft
M. Select Trench Spacing: �ft (typically 5- 12 ft from center to center)
N. Calculate Lawn Area:Trench Length X Trench Spacing =square feet of lawn area
92 ft X�ft = 448 ft2 lawn area
Comments:
UN I VERSITY
OF MINNESOTA OSTP Field Evaluation Form
1.Contact InformaHon Project ID: v 05.31.13
Property Owner/Client Mark Larson Client Phone Number: 763-479-5268
Address 1702 Waconia Parkway South,Waconia MN 55387
Date 9/11/2013 Wea[herConditions Sunny
2. Utility and Structure Information
Utility Locations Identified ❑�������� � �°'"Y P���11°�
Property Lines ❑�^��a^d Appra�d�'aleM Client's Approval(ini[iol)
�Deteimined bu[not Apprwed
❑APPrrnama0e
❑Propeity Lines Surveyed
Locate and Verify(see Site Evaluation map)
Q+ F�dstirg Buildings ❑Improvemer� ❑EasemeMs ❑� Seffiadcs
3. Site Informallon
Percent Slope 3 Slope Direction NE
Landscape Position Slope Shape LL
Vegetation type(s) Gress
Evide�ce of cut,fill,compacted or disturbed areas �Y� �N� ❑���s�^��luation MaD
Dixuss the flooding or run-on potential of site
Identify benchmarks and elevations(Site Evalua[ion Map)
Proposed soil treatment area adequately protected �Yes ❑No
4. General So11s Informatlon
Original soils �Y� �N°
Type of observation ❑soil arobe ❑� Swl eoring ❑soii arc
Number of soil observations 3 �
Soil observations were conducted in the proposed system location 0 Yes �N°
A soil observation was made within the most limiting area of the proposed system 0 Y� ��'10
Soil boring log forms completed and attached 0 Y� ❑�'1O
Percolation tests performed,forms completed and attached �Y� ��'10
5. Phase I.Reporting InformaHon
Depth to standing water inches Anticipated construction issues
Flood elevation feet
Depth to bedrock inches
Depth to periodically saturated soil 48 inches
Maximum depth of rystem 12 inches
Elevation at system bottom 92 feet Differences between soil survey and field evaluation
Percolation rete 30 min/inch
Loading rate 1.67 gpd/ftZ
Contourloading rete 12 gpd/ft
Site evaluation iswes/comments
I hereby certify that i have completed this work in accordance with all applicable ordinances,rules and laws.
(Designer) (Signature) (License#) (Date)
Map Unit Description:Lester-Kilkenny complex,6 to 12 percent slopes,eroded---Hennepin
County,Minnesota
Hennepin County, Minnesota
L41 C2—Lester-Kilkenny complex, 6 to 12 percent slopes,
eroded
Map Unit Setting
Mean annua/precipitation: 23 to 35 inches
Mean annual airtemperature:43 to 50 degrees F
Frost-free period.� 124 to 200 days
Map Unit Composition
Lester, eroded, and similar soils:45 percent
Kilkenny, eroded, and similar soils:40 percent
Minor components: 15 percent
Description of Lester, Eroded
Setting
Landform: Hills on moraines
Landform position (two-dimensional): Backslope
Down-slope shape: Linear
Across-s/ope shape: Linear
Parent material:Till
Properties and qualities
S/ope:6 to 12 percent
Depth to restrictive feature: More than 80 inches
Drainage class:Well drained
Capacity of the most limiting layer to transmit water
(Ksat): Moderately high to high (0.60 to 2.00 in/hr)
Depth to water table: More than 80 inches
Frequency of flooding: None
Frequency of ponding: None
Calcium carbonate, maximum content: 25 percent
Gypsum, maximum content: 1 percent
Available water capacity: High (about 10.5 inches)
Interpretive groups
Farmland classification: Farmland of statewide importance
Land capability(nonirrigated): 3e
Hydrologic Soil Group: B
Typical profile
0 to 7 inches: Loam
7 to 38 inches: Clay loam
38 to 60 inches: Loam
60 to 80 inches: Loam
Description of Kilkenny, Eroded
Setting
Landform: Hills on moraines
Landform position (two-dimensional): Shoulder
USp,4 Natural Resources Web Soil Survey 9/13/2013
� Conservation Service National Cooperative Soil Survey Page 1 of 2
Map Unit Description:Lester-Kilkenny complex,6 to 12 percent slopes,eroded---Hennepin
County,Minnesota
Down-s/ope shape: Convex
Across-slope shape: Convex
Parent material: Glaciofluvial sediments and reworked till over till
Properties and qualities
Slope:6 to 12 percent
Depth to restrictive feature: More than 80 inches
Drainage c/ass: Moderately well drained
Capacity of the most limiting layer to transmit water
(Ksat): Moderately high (0.20 to 0.60 in/hr)
Depth to water table:About 30 inches
Frequency of flooding: None
Frequency of ponding.� None
Calcium carbonate, maximum content:20 percent
Gypsum, maximum content: 1 percent
Available watercapacity: High (about 10.3 inches)
Interpretive groups
Farmland classification: Farmland of statewide importance
Land capa6ility(nonirrigated): 3e
Hydrologic Soil Group: C
Typical profile
0 to 9 inches: Clay loam
9 to 53 inches: Clay loam
53 to 80 inches: Loam
Minor Components
Terril
Percent of map unit: 10 percent
Landform: Hills on moraines
Landform position (two-dimensional): Footslope
Down-slope shape: Concave
Across-slope shape: Linear
Derrynane
Percent of map unit: 5 percent
Landform: Drainageways on moraines
Down-slope shape: Concave
Across-slope shape: Linear
Data Source Information
Soil Survey Area: Hennepin County, Minnesota
Survey Area Data: Version 8, Jul 3, 2012
USpw Natural Resources Web Soil Survey 9/13/2013
� Conservation Service National Cooperative Soil Survey Page 2 of 2