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06.j Variance from a Wetland Setback for a Subsurface Sewage Treatment System at 14250 Scandia Trl. N. - Granberg
1 | P a g e Date of Meeting: July 21, 2026 To: Honorable Mayor and Members of the City Council From: T.J. Hofer, Consultant City Planner Greenlee Dahle, Consultant City Planner Re: Variance from a Wetland Setback for a Subsurface Sewage Treatment System at 14250 Scandia Trail North Applicant: Larry Granberg Zoning: V-N, SM-O Owner: Donna M Granberg Trs Future Land Use: Village Neighborhood Location: 14250 Scandia Trl N PID 1503220410003 Review Deadline September 5, 2026 The applicant is requesting approval for a variance to replace an existing subsurface sewage treatment system (SSTS or septic). As the existing septic encroaches into a wetland setback, a variance is required to be reviewed and acted on by the City Council. The staff report to the Planning Commission from the July 7, 2026, meeting is attached and includes the full background of the request, as well as an evaluation of the request, and an analysis based on the standards in the Unified Development Code. EVALUATION OF REQUEST Proposed Conditions The applicant proposes to replace the existing septic system which is noncompliant and required to be upgraded by Washington County. The new septic would be a Type III mound 2 | P a g e system and the applicant worked with a licensed septic designer to establish a site plan. The existing and proposed tanks are 30 ft. from the wetland boundary. The proposed soil treatment area (absorption extent) would be 45 ft. from the wetland boundary. Variance Section 153.500.060 Subd. 1 (B) establishes the standards for when the City shall approve a variance and mirrors Minn. Stat. 462.357, subd. 6(2). The variance must be consistent with the Comprehensive Plan and must be in harmony with the general purpose and intent of this Chapter. A variance may be granted when enforcement of this Chapter would result in practical difficulties. The practical difficulties test criteria as established by Minnesota Statute and codified in the UDC and are detailed in the attached Planning Commission staff report and followed by staff’s analysis. ANALYSIS Review Comments The submittal was sent to city staff and other regulatory agencies for review and comment, and comments have been incorporated into the resolution or staff has responded to comments in the attached Planning Commission report. The comments are detailed in the Planning Commission report that is attached. Planning Commission The request was heard at the July 7, 2026, meeting of the Planning Commission. A public hearing was held and no comments were received. The Planning Commission discussed the application and reviewed the conditions. The Commission discussed the location of the existing system and the constraints on the site. The Planning Commission moved to recommend approval of the request. The motion was approved with a vote of 5-0. Staff Analysis Staff find that the proposed variance is consistent with the UDC and the Comprehensive Plan. The application meets the standards for practical difficulty, and the proposed plan is the minimum action required to address it. COUNCIL ACTION The City Council can do one of the following: 1. Approve, with or without conditions, of the attached resolution. 2. Deny, with findings, of the attached resolution. 3. Table the request for further review/study. 3 | P a g e RECOMMENDATION The Planning Commission recommend approval of the proposed variance. Motion to approve 55.3-foot variance for a soil treatment and dispersal area and a 45.0- foot variance for a sewage tank from the 75-foot Manage 1 wetland setback and the 75- foot unclassified body of water setback to replace an existing septic system for the property at 14250 Scandia Trail North, with the findings and conditions described within the staff report. The findings included in the attached resolution and following conditions of approval are recommended: 1. The location and layout of the subsurface sewage treatment system on the lot shall be substantially consistent with the plans submitted to the City and reviewed with this request with the exception of where revisions are required with this approval. 2. The applicant shall secure the septic installation permit from Washington County, and obtain any other applicable permits from the watershed district, and other local, state, and federal entities. 3. The variance shall be recorded with Washington County within one year of the date when the variance is approved by the City. 4. The applicant shall pay all other fees and escrows associated with this application. Attachments A. Resolution 07-21-26-04 Approving a Variance from a Wetland Setback of a Manage 1 Wetland to Allow for the Replacement of a Subsurface Sewage Treatment System for Parcel 12.032.20.41.0003 Located at 14250 Scandia Trail North. B. Planning Commission Packet, “Variance from a Wetland Setback for a Subsurface Sewage Treatment System at 14250 Scandia Trail North”, dated July 7, 2026 CITY OF SCANDIA, MINNESOTA RESOLUTION NO. 07-21-26-04 APPROVING A VARIANCE FROM A WETLAND SETBACK OF A MANAGE 1 WETLAND TO ALLOW FOR THE REPLACEMENT OF A SUBSURFACE SEWAGE TREATMENT SYSTEM FOR PARCEL 12.032.20.41.0003 LOCATED AT 14250 SCANDIA TRAIL NORTH WHEREAS, Larry Granberg (the “applicant”), on behalf of Donna M Granberg Trust (the “owner”), has requested and made an application for a 55.3-foot variance for a soil treatment and dispersal area and a 45.0-foot variance for a sewage tank from the 75-foot Manage 1 wetland setback and a 75-foot unclassified body of water setback to replace an existing septic system for the property at 14250 Scandia Trail North and the property is legally described as; That part of the Northeast Quarter of the Southeast Quarter (NE 1/4 of SE 1/4) of Section 15, Township 32, Range 20 described as follows: Beginning at a point in the South line thereof which is tend rods West of the Southeast corner; thence North 16 rods parallel with the East line thereof;; thence West 8 rods parallel with the South line thereof; thence South 16 rods parallel with the East line thereof; thence East along the South line thereof 8 rods to the point of beginning, and containing .8 acre, and subject to existing highway easement. ; and, WHEREAS, the Washington Conservation District determined that the wetland on the property is classified as a Manage 1 wetland; and, WHEREAS, the City of Scandia has adopted Ordinance 198 Shoreland Management Regulations which requires a 75-foot minimum setback for Sewage Treatment Systems from Manage 1 wetlands; and, WHEREAS, the City of Scandia has adopted Washington County Development Code Chapter Four Subsurface Sewage Treatment System Regulations (“Washington County SSTS Regulations”) as adopted on July 27, 2018, and as may be amended from time to time is hereby adopted by reference as if herein printed in full; and, WHEREAS, the Washington County SSTS Regulations requires a 75-foot minimum setback for sewage tanks and soil treatment and dispersal areas from unclassified bodies of water, and; WHEREAS, the Planning Commission reviewed the variance request at a duly noticed Public Hearing on July 7, 2026, and recommended that the City Council approve the request with conditions. NOW, THEREFORE, BE IT RESOLVED BY THE CITY COUNCIL OF THE CITY OF SCANDIA, WASHINGTON COUNTY, MINNESOTA, that it should and hereby does approve, a 55.3-foot variance for a soil treatment and dispersal area and a 45.0-foot variance for a sewage tank from the 75-foot Manage 1 wetland setback to replace an existing septic system for the property at 14250 Scandia Trail North, based on the following findings: 1. The proposed use of a septic system is reasonable and necessary for the existing use, a single-family dwelling, to continue on the site. 2. The site has an existing septic system that must be replaced as it has been found noncompliant with the adopted standards for subsurface sewage treatment systems by Washington County. The property is an existing lot of record and is uniquely encumbered by wetland setbacks, which limit usable space on the lot. 3. The variance will replace an in ground system with a mound system, as the site cannot support an in ground system. The essential character of the locality is not impacted by this change. 4. Economic conditions are not the sole factor in the variance. 5. The variance is not related to inadequate access to direct sunlight for solar energy systems. 6. The proposed variance will not impair adequate supply of light and air to adjacent property, or substantially increase the congestion of the public streets, or increase the danger of fire, or endanger the public safety, or substantially diminish or impair property values within the neighborhood. 7. The requested variance is the minimum action required to eliminate the practical difficulty as there are no alternatives to address sewage treatment on the property. FURTHER BE IT RESOLVED that the following conditions of approval shall be met: 1. The location and layout of the subsurface sewage treatment system on the lot shall be substantially consistent with the plans submitted to the City and reviewed with this request with the exception of where revisions are required with this approval. 2. The variance shall be recorded with Washington County within one year of the date when the variance is approved by the City. 3. The applicant shall secure all applicable permits required from watershed district, as well as all other local, state, and federal entities. 4. The applicant shall pay all other fees and escrows associated with this application. Whereupon, said Resolution is hereby declared adopted on this 21st day of July 2026. Steve Kronmiller, Mayor ATTEST: Kyle Morell, City Administrator 1 | P a g e Date of Meeting: July 7, 2026 To: Chair Loeffler and Planning Commission Members From: Greenlee Dahle, Consultant City Planner TJ Hofer, Consultant City Planner Re: Variance from a Wetland Setback for a Subsurface Sewage Treatment System at 14250 Scandia Trail North Applicant: Larry Granberg Zoning: V-N, SM-O Owner: Donna M Granberg Trs Future Land Use: Village Neighborhood Location: 14250 Scandia Trl N PID 1503220410003 Review Deadline September 5, 2026 SUMMARY The Planning Commission is asked to consider an application for a variance. The Commission must hold a public hearing on the variance request. The Commission must determine if a practical difficulty exists, and if the variance being issued is the minimum action necessary to alleviate the practical difficulty. The Commission is asked to make a recommendation to the City Council. The applicant is requesting approval of a variance to replace an existing septic system. City of Scandia Ordinance No. 198 Shoreland Management Regulations, Sec. 6.4 – Manage 1 Wetland Setback Washington County Ordinance No. 206, Chapter 4 Subsurface Sewage Treatment System (SSTS) Regulations, Sec. 16.2 (6) The city has adopted the Washington County Ordinance No. 206, Chapter 4 Subsurface Sewage Treatment System (SSTS) Regulations (SSTS Regulations) by reference. Washington County 2 | P a g e reviews and permits SSTS, but the city is responsible for reviewing and acting on variance requests from the regulations. Staff recommend approval of the requested variance with conditions. BACKGROUND The applicant is requesting approval for a variance to replace an existing subsurface sewage treatment system (SSTS or septic). The applicant has stated that the existing septic system is noncompliant and must be replaced. The Unified Development Code (UDC) states in 153.400.030 Subd. 2 (B) (emphasis added): (B) Sewage Treatment. Washington County Development Code Chapter Four Subsurface Sewage Treatment System Regulations (referenced as “Washington County SSTS Regulations” throughout this UDC) as adopted on July 27, 2018, and as may be amended from time to time is hereby adopted by reference as if herein printed in full. However, Variances and modifications related to setbacks from wetlands must be heard by, and approved by, the Scandia City Council. As the existing septic drain field encroaches into a wetland setback, a variance is required to be reviewed and acted on by the City Council. Existing Conditions The existing lot is a legal nonconforming riparian lot in the Village Neighborhood (V-N) zoning district and is within the Shoreland Management Overlay District (SM-O) of an unnamed public water basin, which is classified as a Natural Environment lake. The relevant standards from the UDC and the SSTS Regulations are included in the table below. V-N SM-O Existing Conditions Proposed Conditions Minimum Lot Size (ac.) 1.5 5.0 0.8 0.8 Buildable Area (ac.) 1.0 N/A Unknown Unknown Minimum Lot Width (ft.) N/A 300 132.0 132.0 Lot Frontage (ft.) 100 N/A 132.0 132.0 Minimum Structure Setbacks (ft.) Front (street) 75 N/A 121.6 121.6 Side 20 N/A 40.4 40.4 47.2 47.2 Rear 50 N/A 115.8 115.8 Wetlands (Manage 1) 75 75 67.4 67.4 3 | P a g e Septic Setbacks (ft.) SSTS Regulations SM-O Existing Conditions Proposed Conditions Side lot line 10 N/A Tank: 82.0 Field: 13.0 Tank: 82.0 Field: 13.0 Tank: 56.0 Field: 76.0 Tank: 56.0 Field: 76.0 Rear lot line 50 N/A Tank: 70.0 Field: 50.0 Tank: 70.0 Field: 50.0 Wells 50 - Tank: 70.0 Field: 86.0 Tank: 70.0 Field: 86.0 Occupied Buildings Tank: 10 Field: 20 - Tank: 16.72 Field: 25.81 Tank: 16.72 Field: 25.81 Non-occupied Buildings/Decks Tank: 5 Field: 10 - Tank: 5.40 Field: 12.20 Tank: 5.40 Field: 12.20 Natural Environment Lake OHWL 150 150 Tank: ~880 Field: ~918 Tank: ~880 Field: ~918 Unclassified Body of Water/ Wetlands (Manage 1) 75 75 Tank: 30.0 Field: 44.7 Tank: 30.0 Field: 44.7 The wetland to the northwest was determined to be a Manage 1 classification by Washington Conservation District staff. The relevant nonconformity for the current request is the encroachment into the required 75 ft. wetland setback. The existing septic tanks are located 30 ft. from the boundary of the wetland as determined by the Washington Conservation District (WCD). Additionally, the surveyor and WCD staff met on site to confirm the location of the wetland boundary and existing conditions. The septic designer has determined that the soils on the site require a mound system, but the buildable area for the septic is limited by the 50 ft. well setback and the 75 ft. wetland setback. The proposed tanks will be installed in relatively the same location as the existing tanks. A minimum 50 ft. setback from a well is required to obtain a septic permit from Washington County. In order to install a compliant septic system, the well setback must be maintained and confirmed. EVALUATION OF REQUEST Proposed Conditions The applicant proposes to replace the existing septic system which is noncompliant and required to be upgraded by Washington County. 4 | P a g e The new septic would be a Type III mound system and the applicant worked with a licensed septic designer to establish a site plan. The mound system is proposed as a rock bed with sand below and no drain field due to the soils on site. The existing and proposed tanks are 30 ft. from the wetland boundary. The proposed soil treatment area (absorption extent) would be 45 ft. from the wetland boundary. According to the submitted narrative, the mound is designed in the only place it will fit on the lot. The proposed tank is 70 ft. from the well and the proposed soil treatment area is 86 ft. from the well. The proposed tank is located in the same area as the existing tanks which are required to be abandoned when the new system is installed. Variance Section 153.500.060 Subd. 1 (B) establishes the standards for when the City shall approve a variance and mirrors Minn. Stat. 462.357, subd. 6(2). The variance must be consistent with the Comprehensive Plan and must be in harmony with the general purpose and intent of this Chapter. A variance may be granted when enforcement of this Chapter would result in practical difficulties. The Practical Difficulties test criteria as established by Minnesota Statute and codified in the UDC and are listed below in italics followed by Staff’s analysis: a. The applicant proposes to use the property in a reasonable manner not permitted by this Chapter. The proposed use of a subsurface sewage treatment system (SSTS) is reasonable and necessary for the existing use, a single-family dwelling, to continue on the site. b. The plight of the landowner is due to circumstances unique to the property not created by the landowner. The site has an existing and noncompliant SSTS that must be replaced as it has been found noncompliant with the adopted standards for subsurface sewage treatment systems by Washington County. The property is an existing nonconforming lot of record in the Shoreland Overlay and is uniquely encumbered by wetland setbacks, which limit usable space on the lot. c. The variance, if granted, will not alter the essential character of the locality. The variance will replace an in ground system with a mound system, as the site cannot support an in ground system. The mound system is consistent with the neighborhood and will not alter the essential character of the locality. d. Economic conditions alone shall not constitute practical difficulties. 5 | P a g e Economic conditions are not the sole factor in the variance. e. May include, but is not limited to, inadequate access to direct sunlight for solar energy systems. The variance is not related to inadequate access to direct sunlight for solar energy systems. f. The proposed variance will not impair an adequate supply of light and air to adjacent property, or substantially increase the congestion of the public streets, or increase the danger of fire, or endanger the public safety, or substantially diminish or impair property values within the neighborhood. The proposed variance will not impair adequate supply of light and air to adjacent property, or substantially increase the congestion of the public streets, or increase the danger of fire, or endanger the public safety, or substantially diminish or impair property values within the neighborhood. g. The requested variance is the minimum action required to eliminate the practical difficulty. The requested variance is the minimum action required to eliminate the practical difficulty as there are no alternatives to address sewage treatment on the property. ANALYSIS Review Comments The submittal was sent to city staff and other regulatory agencies for review and comment. Comments from other entities have been incorporated into the conditions for approval. Washington County Washington County staff provided the following comment: We have not received a design or application for the proposed septic system. We would recommend that they apply for the septic installation permit as soon as possible so we can determine that the proposed septic system would be permittable, besides for the setback issue they are seeking a variance for, before getting the variance. Comfort Lake-Forest Lake Watershed District (CLFLWD) CLFLWD staff provided the following comment: The septic replacement project will require a CLFLWD sediment and erosion control project. 6 | P a g e Department of Natural Resources (DNR) The DNR Area Hydrologist provided no comment. Engineering Department The City Engineer provided no comment. Fire Department The Fire Chief provided no comment. Public Works Department The Public Works Director provided no comment. Staff Analysis Staff find that the proposed variance is consistent with the UDC and the Comprehensive Plan. The application meets the standards for practical difficulty, and the proposed plan is the minimum action required to address it. The 50-ft. setback from the well is necessary to maintain public health and safety. According to the applicant, the proposed design will improve the environmental conditions on the property. Staff find an encroachment into a wetland setback is a more minimal action than encroachment into a well setback. Staff find the proposed variance request to be reasonable and necessary for the installation of a compliant septic system. A compliant septic system is necessary for the existing use of a single-family dwelling on the property. Staff contacted the applicant who subsequently submitted the application materials to Washington County. Approval of the septic permit from Washington County is a condition of approval but does not need to happen prior to City Council acting on the variance request. COMMISSION ACTION The Planning Commission can do one of the following: 1. Recommend approval, with or without conditions, of the attached ordinance and resolutions. 2. Recommend denial, with findings, of the attached ordinance and resolutions. 3. Table the request for further review/study. RECOMMENDATION Staff recommend that the Planning Commission open a public hearing and receive any and all comments from the public. Staff recommend that the Planning Commission recommend approval of the proposed variance. 7 | P a g e Motion to recommend the City Council approval a 45.0-foot variance from the 75-foot Manage 1 wetland setback and a 75-foot Unclassified Body of Water setback to replace an existing nonconforming septic system for the property at 14250 Scandia Trail North, with the findings and conditions described within the staff report. The above findings and following conditions of approval are recommended: 1. The location and layout of the subsurface sewage treatment system on the lot shall be substantially consistent with the plans submitted to the City and reviewed with this request with the exception of where revisions are required with this approval. 2. The applicant shall secure the septic installation permit from Washington County, obtain any other applicable permits from the watershed district, and other local, state, and federal entities. 3. The variance shall be recorded with Washington County within one year of the date when the variance is approved by the City. 4. The applicant shall pay all other fees and escrows associated with this application. Attachments 1. Draft Resolution 07-21-26-XX 2. Location and Zoning Map 3. Application 4. Survey/Site Plan 5. Septic Design Plan CITY OF SCANDIA, MINNESOTA RESOLUTION NO. 07-21-26-XX APPROVING A VARIANCE FROM A WETLAND SETBACK OF A MANAGE 1 WETLAND TO ALLOW FOR THE REPLACEMENT OF A SUBSURFACE SEWAGE TREATMENT SYSTEM FOR PARCEL 12.032.20.41.0003 LOCATED 14250 SCANDIA TRAIL NORTH WHEREAS, Larry Granberg (the “applicant”), on behalf of Donna M Granberg Trust (the “owner”), has requested and made an application for a 55.3-foot variance for a soil treatment and dispersal area and a 45.0-foot variance for a sewage tank from the 75-foot Manage 1 wetland setback to replace an existing septic system for the property at 14250 Scandia Trail North and the property is legally described as; See Attachment A; and, WHEREAS, the Washington Conservation District determined that the wetland on the property is classified as a Manage 1 wetland; and, WHEREAS, the City of Scandia has adopted Ordinance 198 Shoreland Management Regulations which requires a 75-foot minimum setback for Sewage Treatment Systems from Manage 1 wetlands; and, WHEREAS, the City of Scandia has adopted Washington County Development Code Chapter Four Subsurface Sewage Treatment System Regulations (“Washington County SSTS Regulations”) as adopted on July 27, 2018, and as may be amended from time to time is hereby adopted by reference as if herein printed in full; and, WHEREAS, the Washington County SSTS Regulations requires a 75-foot minimum setback for sewage tanks and soil treatment and dispersal areas from Manage 1 wetlands, and; WHEREAS, the Planning Commission reviewed the variance request at a duly noticed Public Hearing on July 7, 2026, and recommended that the City Council approve the request with conditions. NOW, THEREFORE, BE IT RESOLVED BY THE CITY COUNCIL OF THE CITY OF SCANDIA, WASHINGTON COUNTY, MINNESOTA, that it should and hereby does approve, a 55.3-foot variance for a soil treatment and dispersal area and a 45.0-foot variance for a sewage tank from the 75-foot Manage 1 wetland setback to replace an existing septic system for the property at 14250 Scandia Trail North, based on the following findings: 1. The proposed use of a septic system is reasonable and necessary for the existing use, a single-family dwelling, to continue on the site. 2. The site has an existing septic system that must be replaced as it has been found noncompliant with the adopted standards for subsurface sewage treatment systems by Washington County. The property is an existing lot of record and is uniquely encumbered by wetland setbacks, which limit usable space on the lot. 3. The variance will replace an in ground system with a mound system, as the site cannot support an in ground system. The essential character of the locality is not impacted by this change. 4. Economic conditions are not the sole factor in the variance. 5. The variance is not related to inadequate access to direct sunlight for solar energy systems. 6. The proposed variance will not impair adequate supply of light and air to adjacent property, or substantially increase the congestion of the public streets, or increase the danger of fire, or endanger the public safety, or substantially diminish or impair property values within the neighborhood. 7. The requested variance is the minimum action required to eliminate the practical difficulty as there are no alternatives to address sewage treatment on the property. FURTHER BE IT RESOLVED that the following conditions of approval shall be met: 1. The location and layout of the subsurface sewage treatment system on the lot shall be substantially consistent with the plans submitted to the City and reviewed with this request with the exception of where revisions are required with this approval. 2. The variance shall be recorded with Washington County within one year of the date when the variance is approved by the City. 3. The applicant shall secure all applicable permits required from watershed district, as well as all other local, state, and federal entities. 4. The applicant shall pay all other fees and escrows associated with this application. Whereupon, said Resolution is hereby declared adopted on this 21st day of July 2026. Steve Kronmiller, Mayor ATTEST: Kyle Morell, City Administrator ATTACHMENT A: PROPERTY LEGAL DESCRIPTION (Per Document No. 3845214) That part of the Northeast Quarter of the Southeast Quarter (NE 1/4 of SE 1/4) of Section 15, Township 32, Range 20 described as follows: Beginning at a point in the South line thereof which is tend rods West of the Southeast corner; thence North 16 rods parallel with the East line thereof;; thence West 8 rods parallel with the South line thereof; thence South 16 rods parallel with the East line thereof; thence East along the South line thereof 8 rods to the point of beginning, and containing .8 acre, and subject to existing highway easement. 37 6.2 © Bolton & Menk, Inc - Web GIS 0 Legend This drawing is neither a legally recorded map nor a survey and is not intended to be used as one. This drawing is a compilation of records, information, and data located in various city, county, and state offices, and other sources affecting the area shown, and is to be used for reference purposes only. The City of Scandia is not responsible for any inaccuracies herein contained. Disclaimer: 7/2/2026 8:17 AM 263 Feet City Limits Parcels 04/29/2026 Lot Lines Shoreland Overlay PUD Overlay Lakes Mining Overlay Saint Croix River District Zoning Agricultural Core Agricultural Preserves Rural Residential General Village Neighborhood Rural Commercial Rural Residential Neighborhood Village Historic Core Village Center Open Space - Planned Unit Development Industrial Park ADDRESS: 28587 Jeffrey Ave Chisago City, MN 55013 PHONE EMAIL 651-249-1346 benzierke@gmail.com ZIERKE SOIL TESTING Larry Granberg 14250 Scandia Trl N Scandia, MN 55073 6/3/2026 Dear Larry Granberg, At your request, I have prepared a septic design for your 3 bedroom home in Scandia, Minnesota. Proposed septic system components are as follows: • (2) New 1000 gallon septic tanks • New 1000 gallon lift tank • New 10’x45’ rock bed mound system with 36” sand lift • Event counter/flow measurement device • Effluent filter/alarm The existing system is a tank and straight pipe system that discharges into the wetland to the north of the home. The tank will be required to be abandoned at new system installation. The soils on site require a mound system, and mound options are limited by the well set back radius in the front yard and the wetland in the back yard. There is not presently room in the front yard to place a mound outside of the well set back radius. The proposed system will require a variance from the Washington County set back distance to wetlands of 75’. I have designed the mound in the only place it will fit. This site will require variance approval to reduce the setback distance to the wetland – I met Jay Riggs from Washington County on site and we determined that the tanks would be 30’ from the wetland and the proposed soil treatment area (absorption extent) would be 45’ to the wetland. Soils on site were limiting as well – I had standing water in all four boring holes. For this reason I am recommending low profile septic tanks. In addition, I would recommend re-routing any downspouts off the garage gutters that point towards the proposed septic system. ADDRESS: 28587 Jeffrey Ave Chisago City, MN 55013 PHONE EMAIL WEBSITE 651-249-1346 benzierke@gmail.com ZierkeSoilTesting.com 2 Please let me know if you have any further questions about this septic design. Sincerely, Benjamin Zierke MPCA Lic 119, Cert 9594 31'Proposed Tanks (red) 1000 gallon septic tank 1000 gallon septic tank 1000 gallon lift tank Existing tank is in proposed tank area - abandon *No drainfield straight pipe system B1 B2 B3 B4 R o c k B e d 13' 13' Relative Elevations in Decimal Feet: B1: 100.0 B2: 99.8 B3: 97.5 B4: 98.1 Sand Height/STA: 103.0 Benchmark: 103.1 (bottom of house siding rear of house) Avg Slope: 11% Grade at tanks: 94.5 Inlet at septic: 92.6 3 0 ' t o w e t l a n d 4 5 ' t o w e tl a n d 5 0 ' t o w e t l a n d Deep Well 50' setback radius Scale 50' N Preliminary Evaluation Worksheet 1. Contact Information v 04.07.2025 Property Owner/Client: Site Address: Email: Mailing Address: Legal Description: Parcel ID:SEC:TWP:RNG: A. Client-Provided Information Project Type: Project Use: Residential use:# Bedrooms: Dwelling sq.ft.:Unfinished sq.ft.: # Adults:# Children:# Teenagers: In-home business (Y/N): If yes, describe: * Clear water source - should not go into system Additional current or future uses: Anticipated non-domestic waste: The above is complete & accurate: B. Designer-determined Flow and Anticipated Waste Strength Information Attach additional information as necessary. Design Flow:GPD Anticipated Waste Type: Maximum Concentration BOD:mg/L TSS mg/L Oil & Grease mg/L 3. Preliminary Site Information A. Water Supply Wells 1 2 3 4 Client signature & date 450 2560170 Confining Layer STA Setback Clay 50' Source MDH Residential Water-using devices: (check all that apply) 168 5/7/2026 651-491-4671Phone: 2. Flow and General System Information 1503220410003 Alt Phone: 14250 Scandia Trl N Scandia, MN 55073 lsgranberg22@gmail.com Larry Granberg Date Completed: 3 Project ID: #Description Mn. ID# Well Depth (ft.) Casing Depth (ft.) Granberg 670650 228 Additional Well Information: New Construction Replacement Residential Other Establishment: Garbage Disposal/Grinder Large Bathtub >40 gallons Self-Cleaning Humidifier* Water Softener*Sump Pump* High Eff. Furnace* Hot Tub* Iron Filter* Repair Clothes Washing Machine Sewage pump in basement Other: Dishwasher Expansion Preliminary Evaluation Worksheet Site within 200' of noncommunity transient well (Y/N)Yes, source: Site within a drinking water supply management area (Y/N)Yes, source: Site in Well Head Protection inner wellhead management zone (Y/N)Yes, source: Buried water supply pipes within 50 ft of proposed system (Y/N) Water Supply Pipe Comments: B. Site located in a shoreland district/area?Yes, name: Elevation of ordinary high water level:ft Source: Classification:Tank Setback:ft. C. Site located in a floodplain?Yes, Type(s): Floodplain designation/elevation (10 Year):ft Source: Floodplain designation/elevation (100 Year):ft Source: D. Property Line Id / Source: E. ID distance of relevant setbacks on map: Map Units:Slope Range:% List landforms: Landform position(s): Parent materials: Depth to Bedrock/Restrictive Feature:in Depth to Watertable:in Septic Tank Absorption Field- At-grade: Septic Tank Absorption Field- Mound: Septic Tank Absorption Field- Trench: Name of LGU: LGU Contact: LGU-specific setbacks: LGU-specific design requirements: LGU-specific installation requirements: Notes: 6-15Santiago Silt Loam No N/A N/A N/A 4. Preliminary Soil Profile Information From Web Soil Survey (attach map & description) N/AN/A No N/A N/A N/A ft. STA Setback: N/A N/A No No No No N/A Effluent filters required 5. Local Government Unit Information 75' wetland Many 80+ Sideslope moraines Shoulder loess over till Map Unit Ratings Washington County 651-430-6655 80+ Survey Plat Map Property Lines Other:OHWL EasementsWater Well(s) Building(s) Owner County GIS Other Minnesota Unique Well Number MINNESOTA DEPARTMENT OF HEALTH WELL AND BORING REPORT Minnesota Statutes Chapter 1031670650 County Washington Entry Date 03/12/2002 Quad Scandia Update Date 08/28/2013 Quad ID 134D Received Date Well Name Township Range Dir Section Subsection Well Depth Depth Completed Date Well Completed GRANDBERG,32 20 W 15 DADDCB 228 ft.228 ft.11/07/2001 Elevation 1003 Elev. Method LiDAR 1m DEM (MNDNR)Drill Method Non-specified Rotary Drill Fluid Bentonite Address Use domestic Status Active Well Hydrofractured?XYes No From To ThreadedCasing Type Single casing No X Above/BelowYesDrive Shoe? Joint C/W 14250 SCANDIA TR N SCANDIA MN Geological Material From To (ft.)Color Hardness TOP SOIL 0 1 BLACK SAND/GRAVEL 1 70 RED/BLK CLAY 70 100 RED SAND 100 130 RED LIMEROCK BROKEN 130 165 SOFT LIMEROCK 165 180 HARD SANDROCK 180 228 HARD Stratigraphy Information Casing Diameter Weight 4 168 11in. To ft.lbs./ft. Hole Diameter 6.2 140in. To ft. 4 228in. To ft. Screen?MakeType 168Open Hole From ft.To ft.228 Static Water Level Pumping Level (below land surface) Material FromAmount To neat cement ft.6 140 ft.15 Sacks Wellhead Completion Pump Nearest Known Source of Contamination Abandoned Variance Well Contractor Minnesota Well Index Report 670650 HE-01205-15 Printed on 05/07/2026 SNAPPYPitless adapter manufacturer Model 8PL4IU At-grade (Environmental Wells and Borings ONLY) Casing Protection 12 in. above gradeX X Does property have any not in use and not sealed well(s)? Grouting Information Well Grouted?Yes No Not Specified No ft.100 Measureland surface 11/07/2001 ft.140 hrs.1 Pumping at 20 g.p.m. 55 feet North Direction Septic tank/drain field Type Well disinfected upon completion?X Yes X Not Installed Date Installed Manufacturer's name Model Number HP Volt Length of drop pipe Capacity Typftg.p. X Yes No Was a variance granted from the MDH for this well?Yes X No Licensee Business Lic. or Reg. No.Name of Driller Lauren McCullough Well 82443 GJERDE, M Remarks Prairie Du Chien Group Miscellaneous Last Strat Aquifer Depth to Bedrock Located by Locate Method First Bedrock Jordan Sandstone Washington Cty. Prairie Du Chien- 130 GPS SA Off (averaged) (15 meters) System X Y514484 5011500 ft UTM - NAD83, Zone 15, Meters Unique Number Verification Input Date 07/12/2013Tag on well Angled Drill Hole Soil Map—Washington County, Minnesota Natural Resources Conservation Service Web Soil Survey National Cooperative Soil Survey 5/7/2026 Page 1 of 3 50 1 1 4 8 0 50 1 1 4 9 0 50 1 1 5 0 0 50 1 1 5 1 0 50 1 1 5 2 0 50 1 1 5 3 0 50 1 1 5 4 0 50 1 1 5 5 0 50 1 1 4 8 0 50 1 1 4 9 0 50 1 1 5 0 0 50 1 1 5 1 0 50 1 1 5 2 0 50 1 1 5 3 0 50 1 1 5 4 0 50 1 1 5 5 0 514460 514470 514480 514490 514500 514510 514460 514470 514480 514490 514500 514510 45° 15' 26'' N 92 ° 4 8 ' 5 6 ' ' W 45° 15' 26'' N 92 ° 4 8 ' 5 4 ' ' W 45° 15' 23'' N 92 ° 4 8 ' 5 6 ' ' W 45° 15' 23'' N 92 ° 4 8 ' 5 4 ' ' W N Map projection: Web Mercator Corner coordinates: WGS84 Edge tics: UTM Zone 15N WGS84 0 15 30 60 90 Feet 0 5 10 20 30 Meters Map Scale: 1:396 if printed on A portrait (8.5" x 11") sheet. Soil Map may not be valid at this scale. MAP LEGEND MAP INFORMATION Area of Interest (AOI) Area of Interest (AOI) Soils Soil Map Unit Polygons Soil Map Unit Lines Soil Map Unit Points Special Point Features Blowout Borrow Pit Clay Spot Closed Depression Gravel Pit Gravelly Spot Landfill Lava Flow Marsh or swamp Mine or Quarry Miscellaneous Water Perennial Water Rock Outcrop Saline Spot Sandy Spot Severely Eroded Spot Sinkhole Slide or Slip Sodic Spot Spoil Area Stony Spot Very Stony Spot Wet Spot Other Special Line Features Water Features Streams and Canals Transportation Rails Interstate Highways US Routes Major Roads Local Roads Background Aerial Photography The soil surveys that comprise your AOI were mapped at 1:15,800. Warning: Soil Map may not be valid at this scale. Enlargement of maps beyond the scale of mapping can cause misunderstanding of the detail of mapping and accuracy of soil line placement. The maps do not show the small areas of contrasting soils that could have been shown at a more detailed scale. Please rely on the bar scale on each map sheet for map measurements. Source of Map: Natural Resources Conservation Service Web Soil Survey URL: Coordinate System: Web Mercator (EPSG:3857) Maps from the Web Soil Survey are based on the Web Mercator projection, which preserves direction and shape but distorts distance and area. A projection that preserves area, such as the Albers equal-area conic projection, should be used if more accurate calculations of distance or area are required. This product is generated from the USDA-NRCS certified data as of the version date(s) listed below. Soil Survey Area: Washington County, Minnesota Survey Area Data: Version 21, Sep 10, 2025 Soil map units are labeled (as space allows) for map scales 1:50,000 or larger. Date(s) aerial images were photographed: Jun 29, 2023—Sep 13, 2023 The orthophoto or other base map on which the soil lines were compiled and digitized probably differs from the background imagery displayed on these maps. As a result, some minor shifting of map unit boundaries may be evident. Soil Map—Washington County, Minnesota Natural Resources Conservation Service Web Soil Survey National Cooperative Soil Survey 5/7/2026 Page 2 of 3 Map Unit Legend Map Unit Symbol Map Unit Name Acres in AOI Percent of AOI 153C Santiago silt loam, 6 to 15 percent slopes 0.7 100.0% Totals for Area of Interest 0.7 100.0% Soil Map—Washington County, Minnesota Natural Resources Conservation Service Web Soil Survey National Cooperative Soil Survey 5/7/2026 Page 3 of 3 Field Evaluation Worksheet 1. Project Information Site Address: Utility Locations Identified Locate and Verify (see Site Evaluation map ) Landscape position: Percent slope:%Slope shape:Slope direction: Describe the flooding or run-on potential of site: Describe the need for Type III or Type IV system: Note: Proposed soil treatment area protected? (Y/N):If yes, describe: If yes, describe: Soil observations were conducted in the proposed system location (Y/N): A soil observation in the most limiting area of the proposed system (Y/N): Number of soil observations:Soil observation logs attached (Y/N): Percolation tests performed & attached (Y/N): in ft *Most Restrictive Depth Identified from List Below Periodically saturated soil:in ft Soil Texture: Standing water:in ft Percolation Rate:min/inch Bedrock:in ft Soil Hyd Loading Rate:gpd/sq.ft Benchmark Elevation:ft Elevations and Benchmark on map? (Y/N): Benchmark Elevation Location: Differences between soil survey and field evaluation: Site evaluation issues / comments: Anticipated construction issues: Staked Filled, Compacted, Disturbed areas (Y/N): 4. General Soils Information Higher standing water, shallower restriction Bottom of house siding N side of house Site extremely limited - this will require variance 0.60 103.1 Yes 0 100.00 Project ID: Vegetation type(s):Lawn Back/ Side Slope Linear, Linear 2. Utility and Structure Information 3. Site Information 11.0 No type one soils available Loam 21 Yes 4 16 to 30 No Yes 98.20 5. Phase I. Reporting Information Elevation 100.00 Depth 0 Limiting Condition*: v 04.07.2025 No Yes Northwest Yes Date Completed:5/7/202614250 Scandia Trl N Scandia, MN 55073 Property Owner/Client:Larry Granberg NA Gopher State One Call #Any Private Utilities: Existing Buildings Improvements Easements Setbacks Project ID: Client: Soil parent material(s): (Check all that apply) Slope %:11.0 Slope shape:No Vegetation:100.00 99.00 98.2 Shape Grade 10YR 3/2 10YR 4/4 7.5YR 5/6 Concentrations S2 10YR 4/4 I hereby certify that I have completed this work in accordance with all applicable ordinances, rules and laws. 119 (License #) (Cert #)(LGU/Designer/Inspector)(Signature)(Date) Comments:Pit to 12". Standing water at 21" Benjamin Zierke 5/7/2026 (Designer/Inspector)(Signature)(Date) Optional Verification: I hereby certify that this soil observation was verified according to Minn. R. 7082.0500 subp. 3 A. The signature below represents an infield verification of the periodically saturated soil or bedrock at the proposed soil treatment and dispersal site. 10-12"Medium Sandy Loam <5%Blocky Weak Friable 12-33"Medium Sandy Loam <5%Blocky Weak Friable Indicator(s)I-------- Structure-----------I Consistence 0-10"Loam <5%Blocky Moderate Friable Depth (in)Texture Rock Frag. %Matrix Color(s)Mottle Color(s)Redox Kind(s) Depth to Standing Water-inches:Observation #/Type/Location: Flooding/Run-On potential: Mostly sunny Surface Elevation-Relative to benchmark:Santiago Silt Loam Linear, Linear Soil Observation Log v 04.07.2025 Larry Granberg Location / Address:14250 Scandia Trl N Scandia, MN 55073 Lawn Soil survey map units: Limiting Layer Elevation: Back/Side SlopeLandscape Position: Date/Time of Day/Weather Conditions:4/30/2026 11:30 AM B1 Auger Outwash Lacustrine Loess Till Alluvium Bedrock Organic Matter Disturbed/Fill Project ID: Client: Soil parent material(s): (Check all that apply) Slope %:11.0 Slope shape:No Vegetation:99.80 99.80 98.3 Shape Grade 10YR 3/2 10YR 4/4 7.5YR 5/6 Concentrations S2 10YR 4/4 I hereby certify that I have completed this work in accordance with all applicable ordinances, rules and laws. 119 (License #) (Cert #)(LGU/Designer/Inspector)(Signature)(Date) Optional Verification: I hereby certify that this soil observation was verified according to Minn. R. 7082.0500 subp. 3 A. The signature below represents an infield verification of the periodically saturated soil or bedrock at the proposed soil treatment and dispersal site. Benjamin Zierke 5/7/2026 (Designer/Inspector)(Signature)(Date) Comments:Redox at 10" - standing water at 18" 12-33"Coarse Sandy Loam 15%Blocky Weak Friable 10-12"Medium Sandy Loam <5%Blocky Weak Friable 0-10"Loam <5%Blocky Moderate Friable Indicator(s)I-------- Structure-----------I ConsistenceDepth (in)Texture Rock Frag. %Matrix Color(s)Mottle Color(s)Redox Kind(s) Date/Time of Day/Weather Conditions:4/30/2026 11:30 AM Landscape Position:Back/Side Slope Linear, Linear Flooding/Run-On potential: Lawn Soil survey map units:Santiago Silt Loam Surface Elevation-Relative to benchmark: Soil Observation Log v 04.07.2025 Larry Granberg Location / Address:14250 Scandia Trl N Scandia, MN 55073 Mostly sunny Limiting Layer Elevation: Observation #/Type/Location:B2 Auger Depth to Standing Water-inches: Outwash Lacustrine Loess Till Alluvium Bedrock Organic Matter Disturbed/Fill Project ID: Client: Soil parent material(s): (Check all that apply) Slope %:11.0 Slope shape:No Vegetation:97.50 97.50 96.7 Shape Grade 10YR 3/2 10YR 4/4 7.5YR 5/6 Concentrations S2 10YR 5/2 Depletions S2 I hereby certify that I have completed this work in accordance with all applicable ordinances, rules and laws. 119 (License #) (Cert #)(LGU/Designer/Inspector)(Signature)(Date) Optional Verification: I hereby certify that this soil observation was verified according to Minn. R. 7082.0500 subp. 3 A. The signature below represents an infield verification of the periodically saturated soil or bedrock at the proposed soil treatment and dispersal site. Benjamin Zierke 5/7/2026 (Designer/Inspector)(Signature)(Date) Comments:Redox at 6", standing water at 10" 6-15"Medium Sandy Loam <5%Blocky Weak Friable 0-6"Loam <5%Blocky Moderate Friable Indicator(s)I-------- Structure-----------I ConsistenceDepth (in)Texture Rock Frag. %Matrix Color(s)Mottle Color(s)Redox Kind(s) Date/Time of Day/Weather Conditions:4/30/2026 11:30 AM Landscape Position:Back/Side Slope Linear, Linear Flooding/Run-On potential: Lawn Soil survey map units:Santiago Silt Loam Surface Elevation-Relative to benchmark: Soil Observation Log v 04.07.2025 Larry Granberg Location / Address:14250 Scandia Trl N Scandia, MN 55073 Mostly sunny Limiting Layer Elevation: Observation #/Type/Location:B3 Auger Depth to Standing Water-inches: Outwash Lacustrine Loess Till Alluvium Bedrock Organic Matter Disturbed/Fill Project ID: Client: Soil parent material(s): (Check all that apply) Slope %:11.0 Slope shape:No Vegetation:98.10 98.10 97 Shape Grade 10YR 3/2 10YR 3/6 Concentrations S2 10YR 4/4 7.5YR 5/6 Concentrations S2 10YR 5/2 Depletions S2 I hereby certify that I have completed this work in accordance with all applicable ordinances, rules and laws. 119 (License #) (Cert #)(LGU/Designer/Inspector)(Signature)(Date) Optional Verification: I hereby certify that this soil observation was verified according to Minn. R. 7082.0500 subp. 3 A. The signature below represents an infield verification of the periodically saturated soil or bedrock at the proposed soil treatment and dispersal site. Benjamin Zierke 5/7/2026 (Designer/Inspector)(Signature)(Date) Comments:Redox in topsoil, standing water at 13" 10-16"Medium Sandy Loam <5%Blocky Weak Friable 0-10"Loam <5%Blocky Moderate Friable Indicator(s)I-------- Structure-----------I ConsistenceDepth (in)Texture Rock Frag. %Matrix Color(s)Mottle Color(s)Redox Kind(s) Date/Time of Day/Weather Conditions:4/30/2026 11:30 AM Landscape Position:Back/Side Slope Linear, Linear Flooding/Run-On potential: Forest Soil survey map units:Santiago Silt Loam Surface Elevation-Relative to benchmark: Soil Observation Log v 04.07.2025 Larry Granberg Location / Address:14250 Scandia Trl N Scandia, MN 55073 Mostly sunny Limiting Layer Elevation: Observation #/Type/Location:B4 Auger Depth to Standing Water-inches: Outwash Lacustrine Loess Till Alluvium Bedrock Organic Matter Disturbed/Fill Design Summary Page 1.PROJECT INFORMATION v 04.07.2025 Property Owner/Client:Project ID: Site Address:Date: Email Address:Phone: 2.DESIGN FLOW & WASTE STRENGTH Design Flow:GPD Anticipated Waste Type: BOD:mg/L TSS:mg/L Oil & Grease:mg/L Treatment Level:Select Treatment Level C for residential septic tank effluent 3.HOLDING TANK SIZING Holding Tank Sizing: see 7080.2290 Code Minimum Holding Tank Capacity:Gallons with Tanks or Compartments Recommended Holding Tank Capacity:Gallons with Tanks or Compartments The holding tank(s) will be:Existing tank reuse requires a tank integrity assessment Type of High Level Alarm: (Alarm Set @ 75% tank capacity measured from inlet to bottom) Comments: 4.SEPTIC TANK SIZING Sizing: See 7080.1930 A.Residential dwellings: Number of Bedrooms (Residential): Code Minimum Septic Tank Capacity:Gallons with Tanks or Compartments Recommended Septic Tank Capacity:Gallons with Tanks or Compartments The septic tank(s) will be:Existing tank reuse requires a tank integrity assessment Comments: Effluent Screen & Alarm (Y/N):Model/Type: B.Other Establishments: Waste received by:Days Hyd. Retention Time 7080 Minimum Septic Tank Capacity:Gallons with Tanks or Compartments Designed Septic Tank Capacity:Gallons with Tanks or Compartments The septic tank(s) will be: Comments: Effluent Screen & Alarm (Y/N):Model/Type: 05/07/2614250 Scandia Trl N Scandia, MN 55073 Larry Granberg 3 2000 * Other Establishments Require Department of Labor and Industry Approval and Inspection for Building Sewer * 450 Residential 2000 2 651-491-4671lsgranberg22@gmail.com Installer preference Existing tank reuse requires a tank integrity assessment All New 60 25 C GPD x 2 Yes 170 Design Summary Page 5.PUMP TANK SIZING Sizing: see 7080.2100 Pump Tank Capacity (7080 Minimum):Gal Pump Tank Capacity (7080 Minimum):Gal Pump Tank Capacity (Designed):Gal Pump Tank Capacity (Designed):Gal Pump Req:GPM Total Head ft Pump Req:GPM Total Head ft Supply Pipe Dia.2.00 in Dose Vol:gal in Dose Vol:Gal 6.SYSTEM AND DISTRIBUTION TYPE Soil Treatment Type:Distribution Type: Elevation Benchmark: ft Benchmark Location: MPCA System Type:Distribution Media: Type III/IV/V Details: 7.SITE EVALUATION SUMMARY: Describe Limiting Condition: Layers with >35% Rock Fragments? (yes/no)No Note: Depth Elevation Limiting Condition:inches 0.00 ft ft Minimum Req'd Separation:inches 3.00 ft Mound Minimum Sand Depth:inches Designed Distribution Media Bottom Elevation*:ft Designed Separation:inches *This is the minimum elevation of the bottom of the distribution media for required separation related to the established benchmark A. Soil Texture: B. Soil Hyd. Loading Rate:GPD/ft2 C: Percolation Rate:MPI D. Contour Loading Rate:Note: E. Measured Land Slope:%Note: Comments: 8. Trench: Dispersal Area sq.ft Sidewall Depth in Trench Width ft Total Lineal Feet ft No. of Trenches in Contour Loading Rate ft Minimum Length ft in Bed: Dispersal Area sq.ft Sidewall Depth in Maximum Bed Depth in Bed Width ft Bed Length ft Designed Bed Depth in Soil Treatment Dosing Tank Other Component Dosing Tank: Type III 10.0 Project ID: Event counter required Supply Pipe Dia. 103.10 21.2 * Flow measurement device must be incorporated for any system with a pump * Rock 1000 112.0 Mound 103.00 Elevations are critical for system compliance. 36.0 36 Loam Depth 0.0 100.00 36 11.0 0.60 SOIL TREATMENT AREA DESIGN SUMMARY 16 to 30 34.0 If yes, describe below: % rock and layer thickness, amount of soil credit and any additional information for addressing the rock fragments in this design. Redoximorphic Features/Saturated Soils 1000 Pressure Distribution-Level Bottom of house siding N side of Designed Trench Depth Code Max. Trench Depth Design Summary Page Mound: Dispersal Area sq.ft Media Length ft Media Width ft Absorption Width ft Clean Sand Lift ft Berm Width (0-1%)ft Upslope Berm Width ft Downslope Berm ft Endslope Berm Width ft Total System Length ft System Width ft Contour Loading Rate gal/ft At-Grade: Dispersal Area sq.ft Bed Length ft Bed Width ft Upslope Berm ft Downslope Berm ft Finished Height ft System Length ft Endslope Berm ft System Width ft Level & Equal Pressure Distribution Soil Treatment Area in Lateral Spacing ft Perforation Spacing ft Perforation Diameter gal gal gal Non-Level and Unequal Pressure Distribution Soil Treatment Area gal gal gal 9. A.Organic Loading Based on:B. Minimum required area sq.ft A.Starting Waste Strength Pretreatment Technology: Model:Units: Disinfection Technology:*Required for Levels A & B Model:Units: 10.Comments/Special Design Considerations: *Must Meet or Exceed Target Level Technology Strength Reduction (Treatment Level or HSW) Organic Loading to Soil Treatment (Based on Waste Strength Data and Organic Loading Design) I hereby certify that I have completed this work in accordance with all applicable ordinances, rules and laws. Treatment designed to meet: 10.047.5 3.0 Organic Loading and Additional Info for HSW or Type IV/V Design - See Organic Loading tab Total Dosing Volume 450.0 45.0 10.0 80.6 Lateral 3 Lateral 4 Lateral 5 Lateral 6 Lateral 1 (Designer)(Signature) Benjamin Zierke 119 5/7/2026 (License #)(Date) Perf Size (in) Minimum Dose Volume 3.0 5.3 Spacing (ft) No. of Laterals Pipe Size (in) Pipe Volume (gal/ft) Pipe Length (ft) 3 1.50 gal Max Dose Volume 1/4 112.5 Spacing (in) Project ID: 3.0 117.3 in Drainback Volume Total Dosing Volume Maximum Dose Volume Min Dose Volume Lateral Diameter 17.8 56.8 Lateral 2 Elevation (ft) 20.0 26.610.9 1.SYSTEM SIZING:v 04.07.2025 A.Design Flow:GPD B.Soil Loading Rate:GPD/sqft C.ft D.Percent Land Slope:% E.Media (Sand) Loading Rate:GPD/sqft F.Mound Absorption Ratio: 2.DISPERSAL MEDIA SIZING A.Hydraulic Absorption Required Bottom Area: Design Flow (1A) ÷ Design Media Loading Rate(1E) GPD/sqft =sq.ft Optional Upsizing of Dispersal Media Area B.sq.ft C.sq.ft D.Enter Dispersal Bed Width: ft Can not exceed 10 feet E.Calculate Contour Loading Rate: Bed Width(2D) X Design Media Loading Rate(1E) ft X GPD/sqft =gal/ft Can not exceed Table 1 F.Calculate Minimum Dispersal Bed Length: Dispersal Bed Area(2C) ÷ Bed Width(2D) sqft ÷ ft =ft ft 3.ABSORPTION AREA SIZING A.Calculate Absorption Width: Bed Width(2D) X Mound Absorption Ratio(1F) ft X =ft B.For slopes >1%, the Absorption Width is measured downhill from the upslope edge of the Bed. Calculate Downslope Absorption Width: Absorption Width(3A) - Bed Width(2D) ft -ft =ft Designed Dispersal Media Area:450.0 Larger of 2A or 2B 10.0 Mound Design Worksheet ≥1% Slope Depth to Limiting Condition GPD ÷ Project ID: *Systems with these values are not Type I systems. Contour Loading Rate (linear loading rate) is a recommended value. 1.00 450.0 450 2.00 1.0 11.0 0.60 450 1.0 10.0 450 10.0 10.0 20.010.0 10.0 2.0 Larger Area Size or Organic Sizing of Area (see organic loading sheet - 2G) If a longer dispersal media is desired, enter Length(ft): 45.0 10.020.0 4. DISTRIBUTION MEDIA: Select Dispersal Media:Enter Either 4A or 4B A. in B.Registered Media in Specific Media Comments: 5.MOUND SIZING A.Clean Sand Lift: Required Separation - Depth to Limiting Condition = Clean Sand Lift (1 ft minimum) 3.00 ft -ft =ft Design Sand Lift (optional):ft B.Upslope Height = Clean Sand Lift(5A) + Depth of Media(4AorB) + Depth to Cover Pipe(0.33ft) + Depth of Cover (1 ft) ft +ft +ft +ft =ft C.Select Upslope Berm Multiplier (based on land slope): D.Calculate Upslope Berm Width: Multiplier (5C) X Upslope Mound Height (5B) X ft =ft E.Calculate Drop in Elevation Under Bed: Bed Width(2D) X Land Slope(1D) ÷ 100 = Drop (ft) ft X ft F.Calculate Downslope Mound Height: Upslope Height(5B) + Drop in Elevation(5E) ft +ft =ft G.Select Downslope Berm Multiplier (based on land slope): H.Calculate Downslope Berm Width: Downslope Multiplier(5G) X Downslope Height (5F) x ft =ft I.Calculate Minimum Berm to Cover Absorption Area: Downslope Absorption Width(3B) + 4 feet ft +ft =ft J.Design Downslope Berm = greater of 5H and 5I:ft K.Select Endslope Berm Multiplier:(usually 3.0 or 4.0) L.Calculate Endslope Berm Width = Endslope Berm Multiplier(5K) X Downslope Mound Height(5F) X ft =ft M.Calculate Mound Width: Upslope Berm Width(5D) + Bed Width(2D) + Downslope Berm Width(5J) ft +ft +ft =ft N.Calculate Mound Length: Endslope Berm Width (5L) + Bed Length(2F) + Endslope Berm Width(5L) ft +ft +ft =ft17.79 3.00 10.92 3.0 4.00 Registered Media Depth Project ID: % ÷ 100 = 0.33 47.4826.57 80.58 5.9 17.79 10.00 14.00 26.574.48 17.79 4.48 0.50 Rock Depth Below Distribution Pipe 6 1.10 5.93 4.83 2.26 1.00 10.00 1.104.83 5.93 3.00 10.00 11.0 2.26 4.83 10.92 26.57 3.00 45.00 Project ID: Check registered product information for specific application details and design Rock 6.MOUND DIMENSIONS (Feet) 450 Required Separation:(in)ft ft (in)ft 1.50 (in) 1/4 (in)36.0 (in) If Split and Non-Level Pressure Distribution Used: See Non-Level Pressure Distribution Form Comments: Perforation Size: Media Depth Below Pipe 100.00 103.00 103.00 Rock Elevation Distribution Media Bottom: Elevation required Separation: Elevation Limiting Layer:36.0 Project ID: Perforation Spacing: Distribution Media: Manifold Connection: 6 End Lateral Pipe Diameter: Elevation to Benchmark To t a l M o u n d W i d t h Upslope Downslope Cl e a n S a n d Clean Sand Endslope EndslopeDispersal Bed: X Total Mound Length Distribution Area 450 sq.ft v 04.07.2025 A.Rock Volume : (Rock Below Pipe + Rock to cover pipe (pipe outside dia + ~2 inch)) X Bed Length X Bed Width = Volume (in +3.5 ft X ft =cu.ft Divide cu.ft by 27 cu.ft/cu.yd to calculate cubic yards:=cu.yd Add 30% for constructability:=cu.yd B.Calculate Clean Sand Volume: Volume Under Rock bed : Average Sand Depth x Media Width x Media Length = cubic feet ft X ft X ft =cu.ft For a Mound on a slope from 0-1% Volume from Length = ((Upslope Mound Height - 1) X Absorption Width Beyond Bed X Media Bed Length) ft - 1)X X ft = Volume from Width = ((Upslope Mound Height - 1) X Absorption Width Beyond Bed X Media Bed Width) ft - 1)X X ft = Total Clean Sand Volume : Volume from Length + Volume from Width + Volume Under Media cu.ft +cu.ft +cu.ft =cu.ft For a Mound on a slope greater than 1% Upslope Volume : ((Upslope Mound Height - 1 ) x 3 x Bed Length ) ÷ 2 = cubic feet ((ft - 1)X ) ÷ 2 =cu.ft Downslope Volume : ((Downslope Height - 1) x Downslope Absorption Width x Media Length ) ÷ 2 = cubic feet ((ft - 1)X ft X ) ÷ 2 =cu.ft Endslope Volume : (Downslope Mound Height - 1) x 3 x Media Width = cubic feet (ft - 1 )X ft =cu.ft Total Clean Sand Volume : Upslope Volume + Downslope Volume + Endslope Volume + Volume Under Media cu.ft +cu.ft +cu.ft +cu.ft =cu.ft Divide cu.ft by 27 cu.ft/cu.yd to calculate cubic yards:=cu.yd Add 30% for constructability:=cu.yd C.Calculate Sandy Berm Volume: Total Berm Volume (approx.): ((Avg. Mound Height - 0.5 ft topsoil) x Mound Width x Mound Length) ÷ 2 (-)ft X ft X ) ÷ 2 =cu.ft Total Mound Volume - Clean Sand volume -Rock Volume = cubic feet cu.ft -cu.ft -cu.ft =cu.ft Divide cu.ft by 27 cu.ft/cu.yd to calculate cubic yards:=cu.yd Add 30% for constructability: yd3 x 1.3 =cu.yd D.Calculate Topsoil Material Volume: Total Mound Width X Total Mound Length X .5 ft ft X ft X 0.5 ft =cu.ft Divide cu.ft by 27 cu.ft/cu.yd to calculate cubic yards:=cu.yd Add 30% for constructability:=cu.yd Mound to be constructed to dimensions in design. This is an estimate of materials needed. Individual construction practices may vary quantities. 70.9 92.1 149.9 356.3 258.5 5866.3 1597.5 10.0 1913.1 70.9 9335.7 47.5 80.6 1913.1 17.2 45.0 1109.3 3113.2 3113.2 115.3 115.3 147.9 9335.7 3113.2 356.3 356.3 13.2 3.6 10.0 13.2 10.045.0 45 1598 in ) ÷ 12 X cu.ft ÷ 27 5866.3 217.3 217.3 282.5 45.0 cu.yd X 1.3 5.4 0.5 47.5 5.9 3.0 ft X 258.5 1109.3 147.9 80.6 cu.ft ÷ 27 cu.yd X 1.3 10.0 cu.ft ÷ 27 cu.yd X 1.3 cu.ft ÷ 27 Estimated Mound Materials Worksheet 5.9 6 4.8 3.0 ft X Project ID: v 04.07.2025 1.Media Bed Width:ft 2.Media Bed Length:ft 3.Minimum Number of Laterals in system/zone = Rounded up number of [(Media Bed Width(1.) - 4) ÷ 3] + 1. [(laterals 4.Designer Selected Number of Laterals :laterals Cannot be less than line 2 (Except in at-grades) 5.Lateral spacing in Bed; Must be greater than 1 foot and no more than 2 feet from Edge :ft 6.Length of Laterals = Media Bed Length(2.) - 2 Feet. -2ft =ft Perforation can not be closer then 1 foot from edge. 7.Select Perforation Spacing :ft 8. Number of Perforation Spaces = ft ÷ ft =Spaces 9. Spaces + 1 =Perfs. Per Lateral 10.Select Perforation Diameter Size:in 0.25 11.Select Lateral Diameter (See Table):in 12.Select Manifold Connection (End or Center): 143.0 End 43.0 1/4 If Center Manifold Connection the max number of perfs per lateral in the table can be doubled. Pressure Distribution Design Worksheet 10 3.00 Does not apply to at-grades 45.0 Project ID: 3 3- 4 ) ÷ 3] + 1 = 10.0 45.0 43.0 1.50 Perforations Per Lateral = 3.0 Number of Perforations per Lateral is equal to 1.0 plus the Number of Perforation Spaces(8.). Check table below to verify the number of perforations per lateral guarantees less than a 10% discharge variation. The value is double with a center manifold. Determine the Number of Perforation Spaces . Divide the Length of Laterals(6.) by the Perforation Spacing (7.) and round down to the nearest whole number. 14 15 Pressure Distribution Design Worksheet Perf Per Lateral:Perf Per Lateral Equal Split:8 |7 OPTIONAL Perf Per Lateral Non-Equal Split*:| * must not exceed maximum number perfs per lateral in table 13. Perf. Per Lat. X Number of Perf. Lat. =Total Number of Perf. 14.Calculate the Square Feet per Perforation. Recommended value is 4-11 ft2 per perforation, Does not apply to At-Grades a. Bed Area = Bed Width (ft)(1.) X Bed Length (ft)(2.) ft X ft =sq.ft b.Square Foot per Perforation = Bed Area (14a) ÷ by Total Number of Perfs (13) sqft ÷ perf =sq.ft/perf 15.Select Minimum Average Head :ft 16.Select Perforation Discharge based on Table:GPM per Perf 17. Perfs X GPM per Perforation =GPM 18.Volume of Liquid Per Foot of Distribution Piping (Table II):Gallons/ft 19.Volume of Distribution Piping = X ft X gal/ft =Gallons 20.Minimum Delivered Volume = Volume of Distribution Piping (19.) X 4 Gallons 21.Maximum Delivered Volume = Design flow x 25% Gallons 22.Minimum Delivered vs Maximum Delivered evaluation: Comments/Special Design Considerations: 10.00 45 45.00 Center Feed Lateral Min Diameter: 450 15 Total Number of Perforations equals the Number of Perforations per Lateral (9.) multiplied by the Number of Perforated Laterals.(4.) 15 End Feed Lateral Min Diameter:1.50 Volume ratio correct gal X 4 =14.2 3 56.8 43.0 0.110 14.2 450 gpd X 25% =112.5 of Laterals(6.) X Volume of Liquid Per Foot of Distribution Piping (18.) END Connection CENTER Connection 0.110 450 45 0.74 34.0 3 Flow Rate = Total Number of Perfs(13.) X Perforation Discharge(16.) 0.74 1045 1.0 Number of Perforated Laterals(4.) X Length 1. PUMP CAPACITY v 04.07.2025 A.If pumping to gravity enter the gallon per minute of the pump:GPM (10 - 45 gpm) B.GPM C.Enter pump description: A.ft B.ft C. D.in ft E. Friction Loss = F. ft X 1.25 =ft G. ft per 100ft X ft ÷ 100 =ft H. ft +ft +ft +ft = ft GPM with at least feet of total head. Basic STA Pump Selection Design Worksheet If pumping to a pressurized distribution system: 2. HEAD REQUIREMENTS Project ID: Pumping to Gravity or Pressure Distribution: 34.0 Pressure Demand Dosing Total Head requirement is the sum of the Elevation Difference(2A) + Distribution Head Loss(2B) + Additional Head Loss(2C) + Supply Friction Loss(2G) * Common additional head loss: gate valve = 1 ft each, globe valve = 1.5 ft each, splitter valve = see manufacturers details 2.0 31 between pump and point of discharge: Distribution Head Loss:5 1. Supply Pipe Diameter: 2. Supply Pipe Length: Elevation Difference 15.0 3.0 38.8 ft (due to special equipment, etc.)Additional Head Loss*: 1.2 Friction Loss in Plastic Pipe per 100ft from Table I: 3.0 ft per 100ft of pipe 31 38.8 Calculate Supply Friction Loss by multiplying Friction Loss Per 100ft(E.) by the Equivalent Pipe Length(F.) and divide by 100. Supply Friction Loss = Comments: 15 5.0 21.21.2 Determine Equivalent Pipe Length from pump discharge to soil dispersal area discharge point. Estimate by adding 25% to supply pipe length for fitting loss. Supply Pipe Length X 1.25 = Equivalent Pipe Length 3. PUMP SELECTION A pump must be selected to deliver at least 34.0 21.2 v 04.07.2025 1.A.Design Flow:GPD C. Tank Use: B.Code minimum pump tank capacity:Gal D. Designed pump tank capacity:Gal 2.A.Tank Manufacturer:B.Tank Model: C.Capacity from manufacturer:Gallons D.Liquid depth of tank from manufacturer:inches E.Gallons per inch from manufacturer:Gallons per inch 3. (Pump and block height + 2 inches) X Gallons Per Inch (2E) (in +2 inches) X Gallons Per Inch =Gallons 4. -Item 19 of the Pressure Distribution STA or Item 11 of Non-level STA Gallons (Minimum dose)inches/dose 5.Calculate Maximum Pumpout Volume (25% of Design Flow(1A)) Design Flow:GPD X 0.25 =Gallons (Maximum dose)inches/dose 6.Gallons 7.Calculate Doses Per Day = Design Flow(1A) ÷ Delivered Volume(6.) Doses* * Doses need to be equal to or greater than 4 8.Calculate Drainback: A.Diameter of Supply Pipe =inches B.Length of Supply Pipe =feet C.Volume of Liquid Per Lineal Foot of Pipe =Gallons/ft D.Drainback = Length of Supply Pipe(8B) X Volume of Liquid Per Lineal Foot of Pipe(8C) ft X gal/ft =Gallons 9.Total Dosing Volume = Delivered Volume(6.) + Drainback (8D) gal +gal = Gallons 10.Minimum Alarm Volume = Depth of alarm (2 or 3 inches) X gallons per inch of tank(2E) in X gal/in = Gallons DEMAND DOSE FLOAT SETTINGS Alarm and Pump are to be wired on separate circuits and inspected by the electrical inspector 11.Calculate Float Separation Distance using Dosing Volume . Total Dosing Volume(9.) ÷ Gallons Per Inch(2E) inches 12.Measuring from bottom of tank: A.Distance to set Pump Off Float = Pump + block height + 2 inches Inches for Dose: 4.7 in inches Alarm Depth 24.7 in 382.7 Gal B.Distance to set Pump On Float=Distance to Set Pump-Off Float(13A) + Float Separation Distance(12.) Pump On 21.7 in 75.0 Gal in +in =inches Pump Off 17.0 in 117 Gal C.Distance to set Alarm Float = Distance to set Pump-On Float(13B) + Alarm Depth (2-3 inches)(10.)425 Gal in +in =inches 13.Reserve Capacity Volume = [Tank Liquid Depth(2D) - Alarm Float Depth(12C)] x gallons per inch of tank(2E) [in -in ] X Gallons Installer preference Note: Design calculations are based on this specific tank. Substituting a different tank model will change the pump float or timer settings. Contact designer if changes are necessary. 5.3 0.170 Minimum Delivered Volume = 4 X Volume of Distribution Piping: 40.0 1000 25.0 425 gpd ÷ gal =112.0 112.5 4.0 112.0 31 40.0 STA Dosing Pump Tank Design Worksheet (Demand Dose) Project ID: DETERMINE TANK CAPACITY AND DIMENSIONS 450 Dosing 1000 0.170 DETERMINE DOSING VOLUME 450 1000 Installer preference 21.7 4.69 75.025.0 117.3 in + 2 in = 117.3 4.7 3 Select a pumpout volume that meets both Minimum and Maximum: 17.0 gal/in =gal ÷ 21.7 15.0 17.0 25.0 Calculate Volume to Cover Pump (The inlet of the pump must be at least 4-inches from the bottom of the pump tank & 2 inches of water covering the pump is recommended) 56.8 24.7 15 31 5.3 2 112.0 450 25.0 2.27 4.50 3.0 See sensor accuracy or float tether chart from manufacturer for setting equivalent 25.0 382.7gal/in = 24.7 - 1 - 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 Property ID System Designer Contact Info 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 Septic System Management Plan for Above Grade Systems - 2 - Your Septic System Septic System Specifics System Type: I II III IV* V* (Based on MN Rules Chapter 7080.2200 – 2400) *Additional Management Plan required System is subject to operating permit* System uses UV disinfection unit* Type of advanced treatment unit ______________ Dwelling Type Well Construction Number of bedrooms: ______________________ System capacity/ design flow (gpd): __________ Anticipated average daily flow (gpd): __________ Comments________________________________ Business? : Y N What type? _______________ Well depth (ft): __________________________ Cased well Casing depth: ___________ Other (specify): ___________________ Distance from septic (ft):____________________ Is the well on the design drawing? Y N Septic Tank First tank Tank volume: ________ gallons Does tank have two compartments? Y N Second tank Tank volume: ________ gallons Tank is constructed of __________________ Effluent screen: Y N Alarm Y N Pump Tank _________ gallons Effluent Pump make/model:_______________ Pump capacity ___________ GPM TDH _________ Feet of head Alarm location _________________________ Soil Treatment Area (STA) Mound/At-Grade area (width x length):____ ft x ____ ft Rock bed size (width x length): _____ ft x _____ ft Location of additional STA: _______________________ Type of distribution media: _______________________ Inspection ports Cleanouts Surface water diversions Additional STA not available Septic System Management Plan for Above Grade Systems - 3 - 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 _____ 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 filter. If you have a lint filter, check for lint buildup and clean when necessary. If you do not have one, consider adding one after washing machine. • Effluent screen. If you do not have one, consider having one installed the next time the tank is cleaned along with an alarm. Annually • Water usage rate. A water meter or another device can be used to monitor your average daily water use. Compare your water usage rate to the design flow of your system (listed on the next page). Contact your septic professional if your average daily flow over the course of a month exceeds 70% of the design flow for your system. • Caps. Make sure that all caps and lids are intact and in place. Inspect for damaged caps at least every fall. Fix or replace damaged caps before winter to help prevent freezing issues. • Water conditioning devices. See Page 5 for a list of devices. When possible, program the recharge frequency based on water demand (gallons) rather than time (days). Recharging too frequently may negatively impact your septic system. Consider updating to demand operation if your system currently uses time, • Review your water usage rate. Review the Water Use Appliance chart on Page 5. Discuss any major changes with your service provider or pumper/maintainer. During each visit by a service provider or pumper/maintainer • Make sure that your service professional services the tank through the manhole. (NOT though a 4” or 6” diameter inspection port.) • Ask how full your tank was with sludge and scum to determine if your service interval is appropriate. • Ask your pumper/maintainer to accomplish the tasks listed on the Professional Tasks on Page 4. Septic System Management Plan for Above Grade Systems - 4 - Professional Management Tasks These are the operation and maintenance activities that a pumper/maintainer performs to help ensure long- term performance of your system. At each visit a written report/record must be provided to homeowner. Plumbing/Source of Wastewater •Review the Water Use Appliance Chart on Page 5 with homeowner. Discuss any changes in water use and the impact those changes may have on the septic system. •Review water usage rates (if available) with homeowner. Septic Tank/Pump Tanks •Manhole lid. A riser is recommended if the lid is not accessible from the ground surface. Insulate the riser cover for frost protection. •Liquid level. Check to make sure the tank is not leaking. The liquid level should be level with the bottom of the outlet pipe. (If the water level is below the bottom of the outlet pipe, the tank may not be watertight. If the water level is higher than the bottom of the outlet pipe of the tank, the effluent screen may need cleaning, or there may be ponding in the soil treatment area.) •Inspection pipes. Replace damaged or missing pipes and caps. •Baffles. Check to make sure they are in place and attached, and that inlet/outlet baffles are clear of buildup or obstructions. •Effluent screen. Check to make sure it is in place; clean per manufacturer recommendation. Recommend retrofitted installation if one is not present. •Alarm. Verify that the alarm works. •Scum and sludge. Measure scum and sludge in each compartment of each septic and pump tank, pump if needed. Pump •Pump and controls. Check to make sure the pump and controls are operating correctly. •Pump vault. Check to make sure it is in place; clean per manufacturer recommendations. •Alarm. Verify that the alarm works. •Drainback. Check to make sure it is draining properly. •Event counter or elapsed time meter. Check to see if there is an event counter or elapsed time meter for the pump. If there is one or both, calculate the water usage rate and compare to the anticipated use listed on Design and Page 2. Dose Volume: __________ gallons: Pump run time: _________ Minutes Soil Treatment Area •Inspection pipes. Check to make sure they are properly capped. Replace caps and pipes that are damaged. •Surfacing of effluent. Check for surfacing effluent or other signs of problems. •Lateral flushing. Check lateral distribution; if cleanouts exist, flush and clean at recommended frequency. •Vegetation - Check to see that a good growth of vegetation is covering the system. All other components – evaluate as listed here: Septic System Management Plan for Above Grade Systems - 5 - Water-Use Appliances and Equipment in the Home Appliance Impacts on System Management Tips Garbage disposal •Uses additional water. •Adds solids to the tank. •Finely-ground solids may not settle. Unsettled solids can exit the tank and enter the soil treatment area. •Use of a garbage disposal is not recommended. •Minimize garbage disposal use. Compost instead. •To prevent solids from exiting the tank, have your tank pumped more frequently. •Add an effluent screen to your tank. Washing machine •Washing several loads on one day uses a lot of water and may overload your system. •Overloading your system may prevent solids from settling out in the tank. Unsettled solids can exit the tank and enter the soil treatment area. •Choose a front-loader or water-saving top-loader, these units use less water than older models. •Limit the addition of extra solids to your tank by using liquid or easily biodegradable detergents. Limit use of bleach-based detergents and fabric softeners. •Install a lint filter after the washer and an effluent screen to your tank •Wash only full loads and think even – spread your laundry loads throughout the week. Dishwasher •Powdered and/or high-phosphorus detergents can negatively impact the performance of your tank and soil treatment area. •New models promote “no scraping”. They have a garbage disposal inside. •Use gel detergents. Powdered detergents may add solids to the tank. •Use detergents that are low or no-phosphorus. •Wash only full loads. •Scrape your dishes anyways to keep undigested solids out of your septic system. Grinder pump (in home) •Finely-ground solids may not settle. Unsettled solids can exit the tank and enter the soil treatment area. •Expand septic tank capacity by a factor of 1.5. •Include pump monitoring in your maintenance schedule to ensure that it is working properly. •Add an effluent screen. Large bathtub (whirlpool) •Large volume of water may overload your system. •Heavy use of bath oils and soaps can impact biological activity in your tank and soil treatment area. •Avoid using other water-use appliances at the same time. For example, don’t wash clothes and take a bath at the same time. •Use oils, soaps, and cleaners in the bath or shower sparingly. Clean Water Uses Impacts on System Management Tips High-efficiency furnace •Drip may result in frozen pipes during cold weather. •Re-route water directly out of the house. Do not route furnace discharge to your septic system. Water softener Iron filter Reverse osmosis •Salt in recharge water may affect system performance. •Recharge water may hydraulically overload the system. •These sources produce water that is not sewage and should not go into your septic system. •Reroute water from these sources to another outlet, such as a dry well, draintile or old drainfield. •When replacing, consider using a demand-based recharge vs. a time-based recharge. •Check valves to ensure proper operation; have unit serviced per manufacturer directions Surface drainage Footing drains •Water from these sources will overload the system and is prohibited from entering septic system. Septic System Management Plan for Above Grade Systems - 6 - 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: Certification # Permitting Authority: ©2015 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.