Laserfiche WebLink
SCHULTZ ENG. PROJECT NO.: 25005 <br />DRAWN BY: NES <br />REVIEWED BY: BJS <br />© SCHULTZ ENGINEERING & SITE <br />DESIGN, PLLC 2025 <br />I HEREBY CERTIFY THAT THIS PLAN, <br />SPECIFICATION OR REPORT WAS <br />PREPARED BY ME OR UNDER MY DIRECT <br />SUPERVISION AND THAT I AM A DULY <br />LICENSED ENGINEER UNDER THE LAWS <br />OF THE STATE OF MINNESOTA <br />18 SOUTH RIVERSIDE AVENUE, SUITE 230 <br />SARTELL, MINNESOTA 56377 <br />PH: (320) 339-0669 <br />FX: (866) 633-1830 <br />schultzeng@live.com <br />www.schultzengdesign.com <br />FOSS ROAD <br />ST. ANTHONY VILLAGE, MN <br />C5 <br />SWPPP - STANDARD <br />NOTES <br />ABLE VIEW <br />ASSISTED LIVING <br />DATENO. <br />1 <br />2 <br />ISSUE DATE: 03/31/2025 <br />xx/xx/2025 <br />xx/xx/2025 <br />REVISIONS <br />SCHULTZ ENGINEERING& SITE DESIGN <br />DESCRIPTION <br />3 xx/xx/2025 <br />4 xx/xx/2025 <br />CIVIL SHEET INDEX <br />C1 - STANDARD NOTES & SPECIFICATIONS <br />C2 - STANDARD DETAILS <br />C3 - DEMOLITION & REMOVALS PLAN <br />C4 - GRADING PLAN <br />C5 - SWPPP - STANDARD NOTES <br />C6 - SWPPP - PLAN VIEW <br />C7 - UTILITY & PAVING PLAN <br />Design Engineer <br />Training Course <br />Training Entity <br />Norman E. Statz, PE <br />Design of Construction SWPPP <br />University of Minnesota <br />Instructor John Chapman <br />Dates of Training Course Fall 2024 (Online Course) <br />Total Training Hours 12.0 <br />* "Design of Construction SWPPP" is a certification <br />course offered by the University of Minnesota. The <br />Engineer's certification for "Design of SWPPP" is current, <br />and will expire December 3, 2027. Certification <br />documentation is on file at the Engineer's office and a <br />copy can be provided upon request. <br />FILTRATION BASIN CALCULATIONS <br />Total proposed impervious surfacing = 19,870 sf <br />Base water quality volume: <br />19,870 sf x 1.1-in = 1,825 cf <br />Adjusted water quality volume: <br />(for filtration basins) <br />1,825 sf ÷ 0.50 = 3,650 cf <br />Filtration Basin <br />Provided filtration volume: <br />0.088 acre-ft = 3,830 cf (See HydroCad model) <br />Draw Down Time <br />Assumed underlying soils: Sandy lean clays (CL) <br />(based on soil borings) <br />Assumed groundwater elevation: below 925 <br />(based on soil borings) <br />Assumed infiltration rate: 0.80 in/hr <br />(based on MN storm water manual) <br />Maximum time of infiltration = 48 hrs, 0 min <br />Design time of infiltration = 36 in (3.0-ft) / 0.80 in/hr = 45 hrs, 0 min <br />(assuming full system to basin outlet) <br />Permanent Site Drainage <br />Site drainage will be routed to a filtration basin via storm sewer and surface drainage. The filtration basin has been designed <br />to treat drainage from 1.1" of runoff off new impervious surfaces as per MPCA NPDES permit, City MS4 and Rice Creek <br />Watershed District requirements. For larger events, the basin and associated outlet have been designed to limit discharges <br />such that overall post developed site runoff rates do not exceed overall predeveloped site runoff rates from 2, 10, and <br />100-year, 24-hour storm events. Pre-treatment has been provided for the proposed filtration basin via catch basin sumps. <br />AMENDING THE SWPPP <br />During the construction of this project it may become necessary to amend this SWPPP. Should the responsibility of installing, <br />inspecting and maintaining the erosion and sediment control devices and techniques described in this SWPPP be transferred <br />from the current Contractor to another Contractor, or from the current Contractor to the Owner, this SWPPP shall be updated <br />accordingly. The Owner will also be required to complete an "Permit Modification Form". <br />Should it be determined, during construction, by the SWPPP Coordinator, Engineer, or Regulatory Officials that deficiencies in this <br />SWPPP exist, or if significant changes are made to the design/scope of this project that impact erosion prevention and sediment <br />control, the Engineer shall be notified immediately. The Engineer will then review potential deficiencies and/or significant <br />changes to project design/scope, and make necessary changes to the SWPPP. <br />After changes are made to the SWPPP, the Engineer will issue the necessary documentation, reflecting the changes, to the <br />owner and to the SWPPP Coordinator. The SWPPP Coordinator shall be responsible to make sure that this documentation is <br />added to the on-site SWPPP copy and that the changes described in the documentation is implemented on-site. <br />Existing Impervious Area <br />Proposed Impervious Area <br />Net Impervious Area Increase <br />0.02 acres <br />0.46 acres <br />0.44 acres <br />Receiving Surface Waters <br />The following surface waters could receive storm water runoff from this project, and are within 1 mile of the project site: <br />Surface Water Impaired <br />Water? <br />Special <br />Water? <br />Type of <br />Surface Water <br />USEPA Approved TMDL <br />for Impaired Water? <br />Comments <br />SWPPP Coordinator and Qualifications <br />The Contractor shall provide an individual who shall serve as the SWPPP Coordinator for this project. The SWPPP coordinator <br />shall oversee the implementation of this SWPPP, as well as the necessary inspections (described below) of erosion prevention <br />and sediment control BMPs. The SWPPP Coordinator shall also oversee the installation, maintenance, and repair of the BMP's <br />to be completed in accordance with this SWPPP. The SWPPP Coordinator shall be responsible for the items listed above <br />during the period from the start of the project to the establishment of final stabilization. During this period, the SWPPP <br />Coordinator, or their assigned, qualified (see below) representative shall be available for an on-site inspection within 72 hours <br />upon request by the MPCA. <br />It shall be the Contractor's responsibility to complete the table below, which will identify the SWPPP Coordinator and that <br />person's qualifications. This person shall acknowledge that he/she has been assigned to serve as SWPPP Coordinator and will <br />be overseeing the items listed in this section, by providing their signature in the space below. Please note that this SWPPP will <br />not be considered complete if the table below is not filled in. <br />* Typically, the identity of the SWPPP Coordinator is unknown until the project is awarded. The SWPPP Coordinator may be <br />identified at the project's Preconstruction Conference. <br />The SWPPP Coordinator may assign other personnel to supervise or perform the duties listed above. However, in completing <br />the duties listed above, at least one person shall be trained in erosion prevention and sediment control as related to that <br />particular part of the SWPPP. <br />If the SWPPP Coordinator chooses to delegate some of the duties and responsibilities listed above to other personnel, a list of <br />the personnel, as well as their qualifications, shall be kept with and shall become part of this SWPPP. The qualifications shall <br />be documented in a manner similar to the table shown above. A copy of this list shall be provided to the Engineer. <br />Once the project has been completed and accepted by the Owner, and Final Stabilization has been established and <br />"Notice of Termination" submittedto the MPCA, the Owner assumes responsibility for the long term maintenance of the storm <br />water management system. <br />The SWPPP Coordinator shall be responsible for ensuring that the Contractor properly disposes of the temporary erosion and <br />sediments control measures within 30 days after site stabilization is achieved or after the temporary measures are no longer <br />needed. <br />This SWPPP must be kept physically on-site, or electronically available on-site, during normal working hours with personnel <br />who have operational control over the applicable portion of the site, including all changes to the SWPPP, inspections, and <br />maintenance records. <br />SWPPP Coordinator <br />Training Course <br />Training Entity <br />Instructor <br />Dates of Training Course <br />Total Training Hours <br />Company Name <br />Office Phone # <br />Cell Phone # <br />I, __________________________, hereby <br /> (Printed Name) <br />acknowledge that I will be serving as SWPPP <br />Coordinator for this project and will be <br />responsible for overseeing the items <br />identified in this section. <br /> _________________________________ <br /> (Signature) <br /> _______________ <br /> (Date) <br />BMP INSPECTIONS <br />Inspection Frequency <br />The SWPPP Coordinator shall inspect, or designate someone else who is qualified to inspect (see above), the construction site <br />erosion prevention and sediment control BMPs per the following time frames: <br />1. Once every 7 days. <br />2. Within 24 hours of a rain event (1/2" or greater over 24 hours). <br />Inspections shall be conducted per the time frames listed above with the following exceptions: <br />1. Where parts of the construction site have permanent cover, but work remains on other parts of the site, inspections of areas <br />with permanent cover may be reduced to once per month. <br />2. Where construction sites have permanent cover on all exposed soil areas and no construction activity is occurring anywhere <br />on the site, the site must be inspected for a period of 12 months (inspections may be suspended during frozen ground <br />conditions). Following the 12th month of permanent cover with no construction activity, inspections may be terminated until <br />construction activity is once again initiated or sooner if notified in writing by the MPCA. <br />3. Where work has been suspended due to frozen ground conditions, the required inspections and maintenance schedule <br />must begin within 24 hours after runoff occurs at the site or prior to resuming construction, whichever occurs first. <br />Record Retention <br />The SWPPP and associated records shall be stored and maintained by an employee or representative of the Owner for 3 <br />years after the submission of the Notice of Termination (NOT) Responsibility for overseeing the records will be transferred to <br />another employee or representative should the current personnel become uninvolved with the project or Owner. These <br />records shall include the following: <br />1. The final SWPPP. <br />2. Any other stormwater related permits required for the project. <br />3. Records of all inspection and maintenance conducted during construction <br />4. All permanent operation and maintenance agreements that have been implemented, including all right-of-way, <br />contracts, covenants and other binding requirements regarding perpetual maintenance. <br />5. All required calculations for design of the temporary and permanent Stormwater Management Systems. <br />EROSION PREVENTION AND SEDIMENT CONTROL BMPS <br />Standards and References <br />Materials and construction methods of all BMPs included in this SWPPP shall be as per the Minnesota Department of <br />Transportation (MNDOT) Standard Specifications for Construction, latest edition. The Contractor and SWPPP Coordinator shall <br />obtain a current copy of MNDOT's Standard Specifications for Construction and familiarize themselves with the specification <br />sections applicable to this SWPPP, as there are several BMPs that specifically reference these sections. <br />The Contractor and SWPPP Coordinator shall be expected to be familiar with the applicable MNDOT specification sections <br />during construction. No additional compensation will be paid to the Contractor for additional work due to unfamiliarity with <br />these specification sections. <br />Temporary and Permanent Stabilization <br />All exposed soil areas (including stockpiles) shall be provided with temporary or permanent cover within 7 days of construction <br />activity temporarily or permanently ceasing in that portion of the site. Temporary or permanent drainage ditches or swales, <br />which drain off-site or to a surface water, and are within 200 lineal feet of the property line or surface water shall be provided <br />with temporary or permanent cover within 24 hours of construction. Placement of temporary or permanent cover shall be <br />initiated immediately upon suspension or completion of excavation operations. <br />Temporary Cover: <br />If the Contractor chooses to halt grading operations in a portion of the site (or the whole site) for a period exceeding 7 days, <br />and grading operations (rough or finish grading) in the affected areas has not yet been completed, temporary cover shall be <br />placed. Affected areas consisting of drainage ditches or swales connected to, and within, 200 lineal feet of a property line or <br />surface water shall be provided with temporary cover within 24 hours of connection. Depending on the Contractor's schedule, <br />the temporary cover shall consist of one of the following BMPs: <br />1. Discanchored Mulch <br />a) Discanchored mulch may be used in an area of the site (or the whole site) if the Contractor is halting grading operations <br />for a period that is relatively short, but exceeds 7 days. <br />b) The mulch shall be Type 3 per MNDOT Spec. 3882. <br />c) An adequate quantity of mulch shall be evenly distributed to achieve 90% coverage of the exposed soils. <br />d) Mulch shall be placed as per MNDOT 2575.3C. <br />e) All mulch shall be disc anchored as per MNDOT 2575.3D. Prior to the placement and discanchoring of the mulch, the soils <br />shall be loosened and the area smooth-rough graded per MNDOT 2574. <br />f) Any areas that are exposed as a result of wind action after the initial mulch placement shall be covered with additional <br />mulch to maintain 90% coverage. <br />2. Temporary Seeding with Mulch <br />a. Temporary seeding with mulch may be used in areas of the site (or the whole site) if the Contractor is halting grading <br />operations for a period that is relatively long. Although mulch still needs to be applied as described above, once the <br />temporary seeding/turf is established, the mulch will no longer need to be maintained. The temporary seeding/turf will <br />require very little maintenance. <br />b. Prior to the sowing of temporary seed, the soils shall be loosened and the area smooth-rough graded per MNDOT 2574. <br />c. Contractor shall utilize Seed Mixes 21-111, 21-112, or 21-113 per MNDOT Spec. 3876 for temporary seeding. <br />d. Temporary seeding shall be sown per MNDOT Spec. 2575.3B. <br />e. Once temporary seeding has been sown, mulch shall be placed over the area as described above. <br />Permanent Cover: <br />Upon completion of finish grading and/or placement of topsoil, initiation of the placement of permanent cover shall begin <br />immediately over all exposed areas. This includes areas designated for impervious surfacing (ie: buildings, pavements/gravel <br />bases, sidewalks, etc.). Where the construction schedule will not allow for the placement of the permanent impervious <br />surfacing within 7 days of the completion of finish grading, temporary cover shall be provided in these areas, as described <br />above, until the permanent impervious surfacing can be constructed. Affected areas consisting of drainage ditches or <br />swales connected to, and within, 200 lineal feet of a property line or surface water, shall be provided with permanent cover <br />within 24 hours of connection. <br />Undisturbed Areas <br />If shown on the plan, the Contractor shall delineate areas that are not to be disturbed on the site. This may be done with flags, <br />stakes, signs, silt fence, etc., and shall be completed prior to the start of any grading operations. Regardless of the delineation <br />method the Contractor chooses to use, the Contractor must communicate to his/her personnel and subcontractors that these <br />areas are not to be disturbed and construction equipment (including trucks and personal vehicles) shall not be allowed in <br />these areas. <br />The Contractor shall minimize compaction and preserve topsoil as much as possible at the site. In pervious ("green") areas that <br />are not essential to the construction of the project, the Contractor shall avoid construction traffic and maintain the existing <br />condition of these areas. <br />2. Erosion Control Blanket <br />a. Erosion control blanket shall be placed in areas as shown on the plan included in this SWPPP. These areas shall still be <br />provided with permanent seeding, as described above, beneath the erosion control blanket. <br />b. Erosion control blanket shall meet the requirements indicated in MNDOT Spec. 3885. See plan for category(s) of erosion <br />control blanket. <br />c. Erosion control blanket shall be installed as per MNDOT Spec. 2575.3G2. <br />d. Erosion control blanket specified in drainage ditches and swales connected to, and within 200 lineal feet, of a property <br />line or surface water shall be installed within 24 hours of the completion of finish grading (including permanent seeding). <br />3. Riprap <br />a. Riprap shall be placed in areas as shown on the plan included in this SWPPP. <br />b. All riprap shall be underlain with Type 4 geotextile fabric. The fabric shall meet the requirements of MNDOT Spec. 3733 <br />and shall be installed as per MNDOT Spec. 2511.3B2. <br />c. Riprap materials shall meet the requirements of MNDOT Spec. 3601, and shall be Class 3, unless noted otherwise on the <br />plans. <br />d. Riprap shall be considered "Random Riprap" and shall be placed as per MNDOT Spec. 2511. <br />e. Although it is permitted for the riprap to be placed with machinery, it will be necessary for the Contractor to hand place <br />some of the riprap in order to provide a dense, well-keyed layer of stones with the least practical quantity of void space. <br />f. The minimum thickness of the riprap shall be 18 inches, unless otherwise noted on the plans. <br />g. Riprap designated at the end of pipe outlets shall be placed within 24 hours of installation of the pipe outlet end section. <br />h. Riprap specified in drainage ditches and swales connected to, and within 200 lineal feet, of a property line or surface <br />water shall be installed within 24 hours of the completion of finish grading. <br />Sediment Control <br />The following sediment control BMPs shall be implemented as part of this project: <br />1. Silt Fence <br />a. Silt fence shall be installed at the locations shown on the plan included in this SWPPP. <br />b. Silt fence shall be machine sliced and materials shall meet the requirements of MNDOT Spec. 3886. <br />c. Silt fence shall be installed as per MNDOT Spec. 2573.3B2. <br />d. Silt fence shall be installed prior to any upgradient grading operations, and shall remain in place and maintained <br />adequately until up-gradient areas achieve Final Stabilization (see below). <br />e. Silt fence shall be repaired or replaced if damaged during, or after, rain events, or if accumulated sediment on the <br />upstream side of the fence reaches 1/2 the height of the fence. Repair or replacement of silt fence shall be completed <br />within 24 hours of discovery. <br />f. Portions of silt fence may be removed to accommodate short-term activities, such as vehicle passage. Short-term <br />activities shall be completed as quickly as possible, and new silt fence installed immediately after completion of the <br />short-term activity. If rainfall is imminent or forecasted in the near future, new silt fence shall be installed regardless of if <br />the short term activity has been completed or not. The Contractor is advised to schedule short term activities during dry <br />weather as much as practicable. No additional compensation will be paid due to additional silt fence associated with <br />short-term activities. <br />Temporary soil stockpiles shall be placed on the site in areas up-gradient from silt fence. Where the Contractor chooses to <br />place temporary soil stockpiles outside designated silt fenced areas, the stockpiles shall be surrounded by additional silt fence. <br />The Contractor shall locate stockpiles outside of natural buffers or surface waters, including stormwater conveyances such as <br />curb and gutter systems unless there is a bypass in place for the stormwater. Under no circumstances shall temporary soil <br />stockpiles be placed over surface waters, curb and gutter, catch basins, culvert inlets or outlets, or ditches. <br />2. Catch Basin Protection <br />a. WIMCO Road Drain protection devices, as manufactured by WIMCO, shall be used for catch basin protection on this <br />project. WIMCO can be contacted at (952)-233-3055, and their web page is www.roaddrain.com. <br />b. "Road Drain Top Slab" devices shall be installed at all catch basin locations immediately after placement of the catch <br />basin structures. "Road Drain Top Slab" devices shall remain in place and be adequately maintained until permanent <br />surfacing is constructed (ie: curb and gutter, pavements, and/or gravel surfacing). In areas designated for turf <br />establishment, "Road Drain Top Slab" devices shall remain in place until Final Stabilization of all upgradient areas is <br />established. <br />c. Upon construction of the permanent surfacing, the "Road Drain Top Slab" devices shall be replaced with the WIMCO <br />product specified on the plans. The WIMCO devices shall remain in place until Final Stabilization of all upgradient areas <br />has been established. <br />d. The Contractor shall install and maintain the catch basin protection devices as per the manufacturer's instructions and <br />specifications. <br />e. The Contractor may remove catch basin protection for a particular inlet if a specific safety concern (e. g. street <br />flooding/freezing) is identified by the Contractor or the jurisdictional authority. <br />4. Temporary Rock Construction Entrance <br />a. Temporary rock construction entrances shall be installed at the locations shown on the plan included in this <br />SWPPP. See detail for temporary rock entrance design. <br />b. If the Contractor chooses to access the site from locations other than where temporary rock entrances are <br />specified on the plans, additional temporary rock entrances shall be placed at these locations, as well. <br />c. Temporary rock entrance shall be constructed prior to the start of grading operations, and shall remain in place <br />and be adequately maintained until Final Stabilization has been established. <br />d. Temporary rock entrances shall be maintained in such a manner that the entrances prevent sediment tracking <br />onto adjacent streets. If a temporary rock entrance is found to be ineffective, it shall be replaced or improved <br />within 24 hours of discovery. <br />e. The Contractor has the option to place Type 4 geotextile fabric beneath the temporary rock entrance. The <br />fabric may extend the life of the entrance as it will reduce rock "sinking" into the underlying soils. If the Contractor <br />chooses to use fabric, it should meet the requirements of MNDOT Spec. 3733 and shall be installed as per MNDOT <br />Spec. 2511.3B2. <br />f. If sediment tracking from the site is discovered on adjacent streets, the sediment shall be removed with a street <br />sweeper or other approved method within 24 hours of discovery. This shall be done throughout construction of <br />the project. This sediment may be returned and graded over exposed areas of the site, or disposed of off site per <br />MPCA requirements. <br /> The City may order street sweeping to be performed at the Contractor's or Owner's expense if City staff find that <br /> construction activities are resulting in sediment or debris being tracked onto City streets. <br />5. Filter Logs <br />a. Filter logs shall be installed at the locations shown on the plan included in this SWPPP. <br />b. Filter logs shall consist of Type Wood Fiber biorolls and meet the requirements of MNDOT Spec. 3897. <br />c. Filter logs shall be installed as per MNDOT Spec. 2573.3F. <br />d. Filter logs shall be installed immediately after placement of erosion control blanket. <br />e. Filter logs shall remain in place for the life of the project, and shall be allowed to degrade naturally. <br />Dewatering <br />If dewatering of sandy subsoils is required for this project, the pump discharge shall be treated prior to discharge off-site or <br />into a surface water. Treatment of discharge shall be achieved with the use of a "Dandy Dewatering Bag" (or approved <br />equivalent), as manufactured by Dandy Products,Inc. Dandy Products, Inc. can be contacted at (877) 307-0141, and their <br />web page is www.dandyproducts.com. The "Dandy Dewatering Bag" shall be installed, utilized, and maintained per the <br />manufacturer's instructions and specifications. <br />Once dewatering water has been treated, it may be discharged off-site or to a surface water. The discharge shall be <br />visually checked to ensure that it is relatively clean and not visibly different from any receiving waters. If discharge is <br />noticeably "dirty", the Engineer shall be contacted as additional treatment methods may be necessary. <br />Adequate erosion control shall be provided at the point of discharge if it is located in an area with exposed soils or <br />established turf. This erosion control may consist of temporarily placed rip rap, or other approved energy dissipation <br />measures. The type of erosion control measure shall be at the Contractor's discretion, depending on the location of the <br />dewatering discharge and the unique site characteristics. The erosion control measures shall be effective and shall be <br />maintained adequately such that no erosion occurs at the point of discharge. <br />POLLUTION PREVENTION MANAGEMENT <br />Solid waste accumulated during construction, including collected sediment, construction materials, floating debris, <br />construction debris, paper, plastics, and other solid wastes shall be disposed of in accordance with MPCA disposal <br />requirements: <br />1. Building products that have the potential to leach pollutants shall be maintained under cover (e.g., plastic sheeting <br />or temporary roofs) to prevent the discharge of pollutants or protected by a similarly effective means designed to <br />minimize contact with storm water. <br />2. Pesticides, herbicides, insecticides, fertilizers, treatment chemicals, and landscape materials shall be maintained <br />under cover (e.g., plastic sheeting or temporary roofs) to prevent the discharge of pollutants or protected by <br />similarly effective means designed to minimize contact with stormwater. <br />3. Hazardous materials, toxic waste, (including oil, diesel fuel, gasoline, hydraulic fluids, paint solvents, <br />petroleum-based products, wood preservatives, additives, curing compounds, and acids) shall be properly stored in <br />sealed containers to prevent spills, leaks or other discharge. Restricted access storage areas shall be provided to <br />prevent vandalism. Storage and disposal of hazardous waste or hazardous materials shall be in compliance with <br />Minn. R. ch. 7045 including secondary containment as applicable. <br />4. Solid waste shall be stored, collected and disposed of properly in compliance with Minn. R. ch. 7035. <br />5. Portable toilets shall be positioned so that they are secure and will not be tipped or knocked over. Sanitary waste <br />must be disposed of properly in accordance with Minn. R. ch. 7041. <br />6. The Contractor shall take steps to prevent the discharge of spilled or leaked chemicals, including fuel, from any <br />area where chemicals or fuel will be loaded or unloaded including the use of drip pans or absorbents unless <br />infeasible. The Contractor shall conduct fueling in a contained area unless infeasible. The Contractor shall ensure <br />adequate supplies are available at all times to clean up discharged materials and that an appropriate disposal <br />method is available for recovered spilled materials. The Contractor shall report and clean up spills immediately as <br />required by Minn. Stat. § 115.061, using dry clean up measures where possible. <br />7. If the Contractor washes the exterior of vehicles or equipment on the project site, washing shall be limited to a <br />defined area of the site. Runoff from the washing area shall be contained in a sediment basin or other similarly <br />effective controls and waste from the washing activity shall be properly disposed of. The Contractor shall properly <br />use and store soaps, detergents, or solvents. No engine degreasing shall be allowed on site. <br />8. The Contractor shall provide effective containment for all liquid and solid wastes generated by washout operations <br />(concrete, stucco, paint, form release oils, curing compounds and other construction materials) related to the <br />construction activity. The liquid and solid washout wastes shall not contact the ground, and the containment shall <br />be designed so that it does not result in runoff from the washout operations or areas. Liquid and solid wastes shall <br />be disposed of properly and in compliance with MPCA rules. A sign must be installed adjacent to each washout <br />facility that requires site personnel to utilize the proper facilities for disposal of concrete and other washout wastes. <br />Inspection Records <br />The SWPPP Coordinator shall maintain inspection records during construction. These must be recorded in writing within 24 hours <br />of the inspection and/or maintenance activity. The inspection records shall include the following: <br />1. Date and time of inspections. <br />2. Name of person(s) conducting inspection. <br />3. Findings of inspections, including recommendations for corrective actions. <br />4. Corrective actions taken (including dates, times, and party completing maintenance activities). <br />5. Date and amount of any rainfall events greater than 1/2" in 24 hours. <br />a. The Contractor shall install and maintain a rain gauge at the construction site in order to verify rainfall amounts. <br />6. If any discharge is observed to be occurring during the inspection, a record of all points of the property from which there is <br />a discharge must be made, and the discharge shall be described (i.e., color, odor, floating, settled, or suspended solids, <br />foam, oil sheen, and other obvious indicators of pollutants) and photographed. <br />7. Documentation of any changes to the SWPPP made during construction. <br />a. If the SWPPP coordinator observes that a BMP fails on a regular basis and believes that it is ineffective, it shall be his/her <br />responsibility to notify the Engineer of such deficiencies. The Engineer may then amend the SWPPP (see "Amending the <br />SWPPP") <br />b. All photographs of dewatering activities and documentation of nuisance conditions resulting from dewatering activities. <br />Note: Copies of all inspection records shall be submitted to the Engineer. <br />Areas designated for permanent turf establishment shall be provided with one or more of the following BMPs (see plan): <br />1. Permanent Seeding with Mulch <br />a. Unless otherwise noted on the plans, all areas designated for turf establishment shall be provided with permanent <br />seeding. <br />b. In addition to the plan included as part of this SWPPP, the Contractor shall verify if a Landscaping Plan has been <br />included in the plans by the Architect. If a Landscape Architect has specified higher quality permanent cover (ie: sod, <br />hydroseeding, etc.), the Contractor shall provide this permanent cover in lieu of the permanent seeding specified in this <br />SWPPP. <br />c. Prior to the sowing of permanent seed, the soils shall be loosened and the area smooth-rough graded per MNDOT 2574. <br />d. Contractor shall utilize Seed Mix 25-131 per MNDOT Spec. 3876 for permanent seeding. <br />e. Permanent seeding shall be sown per MNDOT Spec. 2575.3B. <br />f. Once permanent seeding has been sown, mulch shall be placed over the area as described above (under Temporary <br />Cover), unless noted otherwise. <br />Unnamed Pond #1 Pond No No <br />Anticipated Disturbed Area 0.9 acres <br />3. Culvert Inlet Protection <br />a. Culvert inlet protection shall be provided at all culvert inlet locations immediately after construction of the culvert. See <br />plan included in this SWPPP for culvert inlet locations. <br />b. Culvert inlet protection shall consist of the SedJacket, as manufactured by SedCatch Environmental Products. <br />SedCatch Environmental Products can be contacted at (937)-435-5075, and their web page is <br />https://sedcatch.com/collections/sedjacket. <br />c. The culvert inlet protection shall remain in place and adequately maintained until Final Stabilization of all up-gradient <br />areas has been established. <br />d. Culvert inlet protection shall be repaired or replaced if damaged during, or after, rain events, or if accumulated <br />sediment reaches 1/2 of the height of the SedJacket device fabric. Repair or replacement of culvert inlet protection <br />shall be completed within 24 hours of discovery. <br />e. The Contractor may remove culvert inlet protection for a particular inlet if a specific safety concern (e. g. street <br />flooding/freezing) is identified by the Contractor or the jurisdictional authority. <br />Distance = 0.1 miles <br />Unnamed Stream Stream No No Distance = 0.2 miles <br />Poplar Lake Lake No No Distance = 0.6 miles <br />SEE SHEET C6 FOR VICINITY MAP SHOWING PROPOSED SITE AND NEARBY SURFACE WATERS <br />PROJECT INFORMATION <br />PROJECT DESCRIPTION <br />This project will consist of the construction of a new residential building with an approximate footprint of 10,390 sf, as <br />well as parking lot and driveway areas, and sidewalk. <br />DISTURBED AREA & IMPERVIOUS SURFACE TABULATION <br />(within proposed construction area) <br />SEDIMENT AND OTHER POLLUTANTS <br />This SWPPP has been designed mainly to provide erosion and sediment control of naturally occurring soils at this site (ie: sands, <br />loams, and clays). Although this SWPPP does address pollution prevention of other man-made materials, it is assumed that <br />these materials will consist of debris from existing structures and pavements to be demolished, o debris ad chemicals (ie: fuels, <br />new paints, etc.) resulting from new construction. <br />There are no known solid wastes or hazardous materials buried below grade at this site. If such wastes or hazard materials are <br />discovered during construction, the SWPPP Coordinator (described below) will be responsible for notifying the Engineer. This <br />SWPPP will then be revised to address the presence and disposal of these additional pollutants. <br />This SWPPP is not designed for discharges of any material other than stormwater, treated in compliance with State and local <br />requirements, and discharges from dewatering or basin draining activities. Discharges not included in the design of this SWPPP <br />include, but are not limited to, wastewater from washout of concrete, stucco, paint, from release oils, curing compounds and <br />other construction materials, fuel, oils, or other pollutants used in vehicle and equipment operation and maintenance, soaps <br />or solvents used in vehicle and equipment washing and maintenance, and other hazardous substances or wastes. <br />EROSION PREVENTION AND SEDIMENT CONTROL RESPONSIBILITIES <br />SWPPP Design Engineer and Qualifications <br />Unnamed Pond #2 Pond No No Distance = 0.7 miles <br />Silver Lake Lake Yes No Distance = 0.7 miles <br />Jones Lake Lake Yes No Distance = 0.8 miles <br />Unnamed Pond #3 Pond No No Distance = 1.0 miles <br />DATE: 03/31/2025 <br />FINAL STABILIZATION <br />Final Stabilization shall be considered established once the following requirements have been achieved: <br />1. All soil disturbing activities at the site have been completed and all soils are stabilized by a uniform perennial <br />vegetative cover with a density of 70 percent of its expected final growth density over the entire pervious surface <br />area, or other equivalent means necessary to prevent soil failure under erosive conditions. <br />2. The permanent storm water management system is constructed, and is operating as designed. Temporary or <br />permanent sedimentation basins that are to be used as permanent water quality management basins have been <br />cleaned of any accumulated sediment. All sediment has been removed from conveyance systems and ditches are <br />stabilized with permanent cover. <br />3. All temporary synthetic and structural erosion prevention and sediment control BMPs have been removed from the <br />project site. BMPs designed to decompose on site may be left in place. <br />ADDITIONAL COMMENTS <br />The Contractor is solely responsible for the cleanup of any wetlands, rivers, streams, lakes, reservoirs, other waters of the <br />State (as defined by the MPCA's General Storm Water Permit), ground or roadway surfaces or other property damaged <br />by construction activity related to this project. <br />Besides the NPDES permit (MPCA General Storm Water Permit), the Contractor and/or Owner shall also be responsible to <br />obtain all other necessary local government permits related to storm water management, and erosion and sediment <br />control, if applicable (ie: Watershed District, City, MNDOT, etc.). <br />This SWPPP is intended to provide a plan for addressing the erosion prevention and storm water management issues <br />associated with this project. It is to be used in conjunction with the project plans, specifications, and the MPCA General <br />Storm Water Permit. In addition to the SWPPP, the Owner, Contractor, and SWPPP Coordinator shall familiarize <br />themselves with the actual requirements indicated in the MPCA General Storm Water Permit itself and are responsible <br />for compliance with the permit's terms, requirements, and conditions. The Engineer can provide a copy of the permit <br />upon request. <br />LICENSE NO.: 63480 <br />NORMAN E. STATZ, PE <br />51