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Plans - Stormwater Management Plan - 03/12/2025
ENGINEERING - V ss+' - 1 S'tormwater Management Plan for Bloom Filing Three Fort Collins, Colorado Prepared By ASPEN ENGINEERING March 12, 2025 TABLE OF CONTENTS DESCRIPTION PAGE L GENERAL LOCATION AND SITE DESCRIPTION A. Location 3 B. Description of Property 3 C. Description of Construction Activity 3 D. Activity Sequence and Unloading and Loading of Materials 4 E. Areas 4 F. Hydrologic Criteria 5 G. Existing Ground Cover& Soil Amendments 5 H. Potential Pollution Sources 6 I. Non-Stormwater Discharge 8 J. Receiving Water 9 II. SITE MAP 9 III. STORMWATER MANAGEMENT CONTROLS 10 A. Erosion and Sediment Controls 10 B. Installation and Removal Sequence of Control Measures 12 C. SWMP Administrator 13 D. Material Handling and Spill Prevention 14 IV. OTHER CONTROLS 16 V. FINAL STABILIZATION AND LONGTERM STORMWATER MANAGEMENT 16 VI. INSPECTION AND MAINTENANCE 17 VII. REFERENCES 19 APPENDIX A 17 DAILY STORMWATER MANAGEMENT PLAN LOG VICINITY MAP EROSION CONTROL ESCROW CALCULATION (Excerpt from Drainage Report) SWMP Plan Exhibits (EC-01 through EC-03) Erosion Control Notes &Details Sheets (EC-04 & EC-05) PAGE 2 OF 26 STORMWATER MANAGEMENT PLAN FOR BLOOM FILING THREE FORT COLLINS, COLORADO I. GENERAL LOCATION AND SITE DESCRIPTION A. Location The Bloom Filing Three project is located within the Bloom Masterplan Development (Bloom Filing 1) and is bounded by International Boulevard to the north, Aria Way to the east, Donella Drive to the south, and Delozier Road to the west. The project site can also be described as situated in the southwest quarter of Section 9, Township 7 North, Range 68 West of the 6th P.M., City of Fort Collins, County of Larimer, State of Colorado. The site (property boundary) comprises approximately 16.36 acres (see vicinity map Appendix A). B. Description of Property The project site is currently an existing 16.36-acre agricultural field. With the Bloom Masterplan Development (Bloom Filing 1), the Bloom Filing Three site was overlot graded, along with adjacent roadway and utility infrastructure also constructed. The existing site has topography which generally slopes from the northwest to the south- southeast at approximately 0.8%, with varying slopes from 0.4%to 2.1%. The proposed development consists of 360 apartment units housed in 15 buildings, a Community Building with pool, and associated street, water, sanitary sewer, storm sewer, and private infrastructure improvements, as well as intermittent green spaces and outdoor spaces. C. Description of Construction Activity The proposed development is to transform a vacant field comprised of primarily dirt with native weeds and grasses. All site infrastructure and 10 buildings are anticipated to be constructed in a single phase, with construction of the remaining 5 buildings anticipated to be completed in a second phase, as shown in the phasing plan of the Civil Utility plans. The initial construction activities will include demolition of existing infrastructure, topsoil removal and stockpiling, overlot grading of the site, and excavation for the LID basin and utility construction. PAGE 3 OF 26 Construction of public infrastructure improvements will include construction of underground utilities, drainage structures, new roads and building pad sites. Construction work includes trenching and installation of pipelines for water, sanitary sewer, and storm sewer; subgrade preparation; construction of new curbs and sidewalks; paving for new streets; signage and pavement striping; revegetation of disturbed areas; and excavation for building pads. Erosion control measures will be implemented and revegetation of disturbed areas provided to minimize erosion and the transport of sediment and pollutants from the project site. D. Activity Sequence and Unloading & Loading of Materials The major activity sequence for the project will be as follows: 1) Installation of the required erosion and sediment control measures; 2) Topsoil excavation and stockpiling on-site. 3) Demolition of curb and gutter, asphalt, clear and grubbing. 4) Overlot grading, including roadways, access drives, drive aisles, and parking lot areas. 5) Excavation and grading of the swale areas and LID Basin. 6) The required erosion control measures will be installed for the stormwater system, swales, and existing inlets. 7) Utility construction: trenching and installation of pipelines for water, sanitary sewer, and storm sewer. 8) Roadway, Access Drives, Drive Aisles, sidewalks, and Parking Lot construction: Street subgrades will be excavated and prepared. Paving of roadways, drive aisles, parking lots, curb and gutter, and sidewalks to be constructed based on weather and timing of building construction. 9) Lighting, and signage and striping will be installed. 10) The required erosion control measures will be installed or updated, as may be applicable. 11) Excavation for foundation(s). 12) Stabilization, permanent seeding, mulching, sod, and other landscaping will be installed. 13) Perform routine maintenance and inspections of BMP's after storm events. 14) Removal of control measures. Unloading and loading of construction materials shall be completed in a manner to mitigate disturbance to existing soils and prepared soils to the extent possible and as allowed within the normal means of construction. The contractor is encouraged to provide specific loading and unloading areas so as to minimize heavy truck traffic disturbing prepared and existing soils, which could cause additional erosion control measures being required for the site/project. E. Areas The project site is an open field vegetated with grass and weeds, that was partially overlot graded with the Bloom Filing One project. The existing site has topography which PAGE 4 OF 26 generally slopes from the northwest to the south-southeast at approximately 0.8%, with varying slopes from 0.4%to 2.1%. The entire 16.36 acres will undergo topsoil removal, stockpiling and overlot and final grading. Areas expected to be exposed for more than 30 days shall be temporarily revegetated to minimize erosion potential. F. Hydrologic Criteria The Final Drainage and Erosion Control Report for Bloom Filing Three, dated March 12, 2025, which is currently under review by the City of Fort Collins, will be followed and implemented. The existing site, comprised of an open field with grass and weeds, has a composite runoff coefficient of approximately 0.25. After construction, the proposed site will consist of 15 apartment buildings, a Clubhouse with pool, and associated street, water, sanitary sewer, storm sewer, and private infrastructure improvements, as well as intermittent green spaces and outdoor spaces. Associated internal private streets, access drives, water, sanitary sewer, storm sewer, and private infrastructure improvements will also be constructed. The developed site will have a composite runoff coefficient of approximately 0.69. A subsurface soil investigation was performed by Terracon, Inc., a qualified geotechnical consultant, to determine the existing soil characteristics. Please refer to the "Preliminary Geotechnical Engineering Report, Pedcor Mulberry Apartments, Fort Collins, Colorado, Terracon Project No 20205121", dated September 14, 2021, by Terracon, Inc. for specific details. G. Existing Ground Cover & Soil Amendments The existing site is a vegetated field comprised of native grasses and weeds, which had partial overlot grading completed during Bloom Filing One construction. The existing site is 100% fallow, with vegetation being established through the Bloom Filing One erosion control plans. According to the USDA Natural Resources Conservation Service mapping, the site soils are comprised of 33.2% Ascalon sandy loam, 0 to 3 percent slopes; 59.1% Garrett loam with 0 to 1 percent slopes; with offsite areas to the west and northwest being 0.4% Gravel Pits; and 7.3% Nunn Clay loam, 0 to 1 percent slopes. Ascalon sandy loam and Garrett loam, are Hydrologic Soil Group B. Soil Amendments: Soil Amendments for the property are anticipated for the landscaping and planting along and throughout green spaces/ open areas, lawns, parkways, and other landscaped areas. Such soil amendment areas shall adhere to the approved landscape plans and sections 12-130 through 12-132 of the City Code for such soil amendments. PAGE 5 OF 26 Sec. 12-132. Regulations (for Soil Amendments). (a) Except as otherwise provided below, the holder of any building permit shall, as a condition of the issuance of a certificate of occupancy,prepare any area in which any plant materials, including but not limited to grass, seed, flowers, shrubs or trees, are expected or intended to be installed, prior to installation of any plant materials in that area, as follows: (1) The soil in such areas shall be thoroughly loosened to a depth of not less than eight(8) inches; and (2) Soil amendments shall be thoroughly incorporated into the soil of such areas to a depth of at least six (6) inches by tilling, discing or other suitable method, at a rate of at least three (3) cubic yards of soil amendment per one thousand(1,000) square feet of area to be planted, unless at least four(4) inches of loose top soil has been placed on the area after completion of construction activity on top of not less than four(4) inches of loosened subgrade soils. H. Potential Pollution Sources The following potential pollution sources are identified below and measures are suggested to protect storm-water quality and prevent contaminates from migrating off-site. Refer to the SWMP exhibits for the location of BMP's, stockpiled topsoil areas, staging areas, waste storage, portable toilets, and site trailer. These locations are provided for guidance and may be repositioned based on site conditions or Contractor preferences. 1. Disturbed and Stockpiled Topsoil Approximately 16.36 acres of land will undergo clearing, grubbing and topsoil removal. Excavation will also be required for underground utility construction, roadways, parking lots and building foundations. Excavated topsoil will be placed in stockpiles not to exceed 10' in height. Stockpiles must be a minimum of 50 feet from storm sewer inlets and LID basin. Provide temporary seeding and ample irrigation to establish vegetation on topsoil stockpiles and on disturbed soil areas. Disturbed soil shall be maintained in a roughened surface condition and graded with gentle slopes to enhance infiltration and prevent concentrated runoff from occurring. Stockpiled soil shall be temporarily seeded if stored more than 30 days. Installation of perimeter silt fence around stockpiles, property boundaries and phase limits as necessary to prevent migration of soil. Other BMP's will include wattle check dams and wattle inlet filters in swales and at storm inlets. 2. Vehicle Tracking of Sediments Vehicle tracking pads constructed at the project entrances off of Aria Way, Donella Drive, and Delozier Road are intended to reduce the tracking of soil onto PAGE 6 OF 26 public streets during construction. Soil tracked off-site onto paved roads shall be scrapped, collected and disposed of properly. If tracking of soils offsite persists, additional gravel paving of parking areas delivery areas and/or access routes may be necessary to reduce tracking. 3. Management of Contaminated Soils No contaminated soils have been identified on the parcel. If contaminated soils are identified during grading, the areas should be marked and the Owner contacted so a remediation plan can be implemented. 4. Loading and Unloading Operations Delivery of site materials has potential for impacting runoff quality. Designated areas for deliveries shall be established to safely load and unload materials. Hazardous material delivered to site shall be covered and in sealed containers. Contractor staging areas may be established to drive in and deliver materials on gravel surfaces to minimize tracking soils offsite. 5. Outdoor Storage Activities Hazardous materials such as fuel, solvent or fertilizer used on site shall be in a secure covered area. Ample sorbent material and containment shall be available to contain a spill. 6. Vehicle and Equipment Maintenance and Fueling Heavy machinery will be operated on the project site requiring the use of fuel trucks. Re-fueling operations and equipment maintenance shall be done in dry weather conditions and on level ground to prevent and manage soil contamination. Ample sorbent material and containment shall be available to contain a spill. Day to day cleaning and maintenance of equipment has the potential to impact stormwater quality. A designated area should be established for refueling and maintenance with adequate separation from drainage paths and ponds. Potential flow paths for spills shall be assessed prior to any fuel or hazardous substance transfer. Secondary containment shall be implemented for storage and transfer areas. Any storm drain conveyance within a containment area shall be protected with berms or plugs. Washing of vehicles or equipment into the storm drainage system is prohibited. 7. Significant Dust or Particulate Generating Processes Provide regular watering operations to moisten soils and reduce fugitive dust during dry conditions. 8. Routine Maintenance Activities Stored fuel, solvent and fertilizer used on the site shall be in a secure covered area. Fertilizers will be used to establish temporary and permanent vegetation during and after construction. MSD sheets should be maintained on site and posted. Storage bins, containers should be inspected regularly for evidence of leakage or damage and measures take to fix or repair damage. Materials should PAGE 7 OF 26 be securely transported when in use and applied or used as recommended by the manufacturer. 9. On Site Waste Management Practices Contractor staging areas, dumpsters, and waste receptacles shall be located at least 50 feet from water courses and inlets, and on a level gravel surface to reduce generating dust and erosion in these high traffic areas. Perform routine maintenance and dispose of waste promptly and properly off-site. 10. Concrete Truck/Equipment washing A concrete washout basin or potable washout unit shall be provided at least 50 feet from a water course or inlet, with such basin being determined by the Contractor. The Contractor shall notify the Engineer and the City of Fort Collins Erosion Control Inspector as to the location, size, and type of concrete washout that will be utilized for the project. Wash fluids are to be contained with waste product and disposed of properly off-site. 11. Dedicated Asphalt and Concrete Batch Plants Concrete and asphalt batch plants will not be used on the project site. Premixed paving materials will be delivered to the site and placed. 12. Non-Industrial Waste Sources Portable toilets shall be located at least 50 feet from water courses and inlets, and on a level gravel surface to reduce generating dust and erosion in these high traffic areas. Perform routine maintenance and dispose of waste promptly and properly off-site. Locations for trash and portable toilets are identified on the SWMP exhibit. 13. Dewatering Activities A Colorado groundwater discharge permit will be required if dewatering becomes necessary during construction. Contractor shall comply with State and Federal regulations for discharging stormwater and groundwater. Refer to Section III.C. Material Handling and Spill Prevention, for additional details on controlling the potential pollution sources. I. Non-Stormwater Discharge Firefighting activities on the site will be managed with Poudre Fire Authority. As these conditions are not under direct control of the SWMP Administrator they should be exempt from this plan. However, erosion control measures shall be in place and maintained as practical during and after a fire fighting event. All underground water utilities, sewer and storm must be constructed, tested and approved prior to initiating construction of any structures. By that time the street curb, gutter and pavement is expected to be constructed also. Fire trucks will need to have a paved or all-weather surface to support the fire fighting vehicles. All surface erosion control measures must PAGE 8 OF 26 be installed and maintained during construction. Inlet protection will be installed after the inlets are constructed to protect them from sediment transport during firefighting activities or storm events. Flow would be conveyed in swales, curb and gutter and the storm sewer system directed to the constructed LID Basin and offsite, regional detention pond areas, as applicable. Erosion control measures such as inlet protection and straw wattles shall be maintained until the site is stabilized and vegetation established. Prior to installation and approval of underground water utilities, the site will be bare earth. Fire hazards would include construction vehicles, refueling areas and storage materials. Runoff from storm events or firefighting will be routed across the surface to constructed swales and detention ponds with erosion control measures in place. Drilling exploration for the project site was conducted to a maximum depth of 20.5 feet below existing grade. Groundwater was encountered in the majority of borings at varying depths from 6.5' to 13' below existing site grades, at the time of drilling. These observations represent groundwater conditions at the time of the field exploration, and may not be indicative of other times or at other locations from where test borings were taken. Therefore, groundwater may or may not be encountered during construction. The contractor shall secure an NPDES permit, in the event groundwater is encountered during construction. J. Receiving Water Runoff from the site will be conveyed to the onsite LID basin/rain garden and existing offsite regional detention ponds. Flows that enter the onsite LID basin will be spread laterally. The rain garden will provide approximately one (1) foot of ponding depth with the base composed of bioretention sand media and gravel over a 6" perforated underdrain system installed at the bottom of the rain garden. One foot of depth will be provided in the rain garden to meet the LID criteria. Runoff captured in the rain garden will be filtered through the media and gravel, routed in the underdrain system to the outlet structure, which will discharge runoff into the existing storm system in Donell Drive that carries runoff to the offsite, existing detention Pond G 1. A small portion of runoff from green spaces that front the surrounding public streets will enter the public street systems and be captured and conveyed by the existing inlet and storm sewer piping to existing offsite regional Ponds E and G1. II. Site Map Site maps and notes and details for this SWMP are represented on the SWMP Plan Exhibits and the Erosion Control Notes and Details sheets, found in Appendix A of this report. PAGE 9 OF 26 III. Stormwater Management Controls A. Erosion and Sediment Controls This project will implement various Best Management Practices (BMP's) for the treatment of storm water runoff as outlined below. The location of BMPs are represented on the Site Map exhibits, with the following being implemented for the project: Structural Practices • Silt fence • Straw wattle or gravel filter check dams • Diversion ditches and drainage swales • Gravel inlet filters, rock socks and wattles • Erosion control fabric • Vehicle tracking pads • Riprap Non-Structural Practices • Roughened overlot grading with gentle slopes • Preservation of existing vegetation • Temporary and permanent seeding, sod, and crimped straw mulch • Pre-Sedimentation Basins • Water application to suppress dust control The potential exists for erosion problems during construction, but should be minimal after completion of Bloom Filing Three development. Silt fence will be installed along the north, south, east, and west sides of the site to prevent sediment from leaving the site. After curb and gutter is constructed, silt fence will be installed around each block of buildings to minimize sediment entering streets. Tracking pads will also be placed at entrances to the site. Straw wattle or gravel inlet filters will be placed at the LID basin outlet structure and around area inlets in green spaces. Wattle or gravel inlet filters will be placed at the opening of the proposed Type R inlets, Combination inlets, and area inlets located in the roadways,parking lot areas, or green spaces. During the construction of Bloom Filing Three, disturbed areas will be permanently landscaped or temporarily seeded and mulched within 30 days of initial disturbance. Prior to grading operations and construction, the structural erosion controls must be installed. The vehicle tracking pads shall be constructed at the project entrances as shown. Silt fences shall be installed around the perimeter of the property boundary, as shown in the erosion control plans. These measures will reduce tracking of soil onto public roads during construction and help prevent sediment from leaving the site. Immediately after storm sewer improvements are constructed, erosion control measures shall be installed and maintained. Drainage swales constructed on the project site will be protected with installation of wattle or gravel filter check dams and runoff will be conveyed to the proposed drainage structures and onsite LID basin. Site runoff will PAGE 10 OF 26 ultimately discharge from the LID basin and other portions of the site areas to the existing storm system in the surrounding public streets, which route the combined flow to the existing offsite regional ponds E and G1. Erosion control fabric shall be installed in drainage areas and the slopes identified on the Erosion Control Plan. Fabric shall be installed in accordance with manufacturer's guidelines and recommendations. Structural practices such as temporary wattle and gravel inlet filters will be provided at proposed inlets. Wattle filters will also be installed at the curb cut locations. Temporary wattle inlet filters will also be installed at existing inlet locations. The LID basin, along with any other disturbed land should be revegetated with seed or sod or crimp mulched as soon after grading as weather permits. Established vegetation will provide the opportunity for pollutants to settle out of the storm water runoff. The surface of overlot graded terrain should be kept in a roughened condition until final preparation for foundations or landscaping. Existing vegetation should be preserved as much as possible. Soil stockpiles shall not exceed 10 feet in height and shall receive temporary grass seeding to establish vegetated cover. Temporary and permanent grass seeding must be initiated in construction lasting 30 days or more to vegetate disturbed areas, as called for in the approved drainage and erosion control report and erosion sheets, as well as the approved landscape plans for the project. Sediment and debris deposition on the upstream side of silt fence must be removed following significant storm events and as needed to allow the erosion control structures to function effectively. Damaged fence must be replaced or repaired as evident during regular inspections. Erosion and sediment controls must be maintained until the site has uniform cover equivalent to 70% of the original site condition. Cover may include vegetation in the interim condition. Disturbed areas not in a roadway or greenbelt area shall have temporary vegetation seed applied within 30 days of initial disturbance. After seeding, a hay or straw mulch shall be applied over the seed at a rate of 1.5-tons/acre minimum, and the mulch shall be adequately anchored, tacked, or crimped into the soil. Those roads that are to be paved as part of the Bloom Filing Three development must have a 1-inch layer of gravel mulch applied at a rate of at least 135 tons/acre immediately after overlot grading is completed. The pavement structure shall be applied within 30 days after the utilities have been installed. The LID basin/rain garden is to be phased with construction as to protect it from being fouled by sedimentation. This process calls for the portion of the underdrain pipe that is not perforated, to be constructed and capped during overlot grading and utility installation. The rain garden's bioretention sand media, gravel layers, and perforated underdrain are not to be constructed until pavement surfaces have been constructed and building pads have perimeter erosion control measures installed. If the disturbed areas will not be constructed upon within one growing season, a permanent seed shall be applied. After seeding, a hay or straw mulch shall be applied PAGE 1 1 OF 26 over the seed at a minimum rate of 1.5 tons/acre, and the mulch shall be adequately anchored, tacked or crimped into the soil. In the event a portion of the roadway pavement surface and utilities will not be constructed for an extended period of time after overlot grading, a temporary vegetation seed and mulch shall also be applied to the roadway areas as previously discussed. Please refer to the approved landscape plans for the seed, plant, shrub, and mulch types, as well as irrigation needs for the project. B. Installation and Removal Sequence of Control Measures In the initial phase of construction, prior to grading operations and construction, the structural erosion controls must be installed and vehicle tracking pads constructed at the project entrance. Tracking pads will be constructed at the entrances/exits to the existing, adjacent public streets as shown. Silt fence will be installed along the perimeter of the north, east, south, and west boundary of the site improvements to prevent sediment from leaving the site. Where silt fence is shown to cross hard surface areas, rock socks shall be utilized for these areas, as may be applicable during construction. Curb inlet gravel filters and gravel curb check bags shall be installed in the curb and gutter of parking lot drives draining outside the limits of disturbance as shown on the Initial Erosion Control Plan(EC-01). In the interim phase of construction, immediately after storm sewer improvements are constructed, erosion control measures shall be installed and maintained. Drainage swales constructed on the project site will be protected with installation of wattle check dams or gravel filters and runoff will be conveyed to the LID basin or existing offsite detention ponds E and G1. Gravel inlet filters will be placed at proposed curb cuts, proposed storm inlets, and proposed sidewalk chases to mitigate the build-up of sediment and transport of debris into existing streets and downstream drainage systems. Geotextile fabric shall be installed at concentration points (curb cuts) and in swales, as shown. Fabric shall be installed in accordance with manufacturer's guidelines and recommendations. The interim BMP measures are shown in the Interim Erosion Control Plan (EC-02), to minimize erosion and increase soil stabilization during the construction of improvements. During the construction of Bloom Filing Three project, the surface of overlot graded terrain should be kept in a roughened condition until final preparation for paving or landscaping. Existing vegetation should be preserved as much as possible. Soil stockpiles shall not exceed 10 feet in height and shall receive temporary grass seeding to establish vegetated cover. Temporary and permanent grass seeding must be initiated in construction lasting 30 days or more to vegetate disturbed areas, as called for in the approved drainage and erosion control report and erosion sheets, as well as the approved landscape plans for the project. Disturbed areas will be permanently landscaped or temporarily seeded and mulched within 30 days of initial disturbance. Disturbed land should be revegetated with seed or sod or crimp mulched as soon after grading as weather permits. This will provide the opportunity for pollutants to settle out of the storm water runoff. PAGE 12 OF 26 In the final phase of construction, the erosion and sediment controls must be maintained until the site has uniform cover equivalent to 70% of the site. Cover may include vegetation in the interim condition. Disturbed areas not in a roadway or greenbelt area shall have temporary vegetation seed applied within 30 days of initial disturbance. After seeding, a hay or straw mulch shall be applied over the seed at a rate of 1.5-tons/acre minimum, and the mulch shall be adequately anchored, tacked, or crimped into the soil. Those drives that are to be paved as part of the Bloom Filing Three project must have a 1-inch layer of gravel mulch applied at a rate of at least 135 tons/acre immediately after overlot grading is completed. The pavement structure shall be applied within 30 days after the utilities have been installed. If the disturbed areas will not be constructed upon within one growing season, a permanent seed shall be applied. After seeding, a hay or straw mulch shall be applied over the seed at a minimum rate of 1.5 tons/acre, and the mulch shall be adequately anchored, tacked or crimped into the soil. In the event a portion of the drives or parking lot pavement surface and utilities will not be constructed for an extended period of time after overlot grading, a temporary vegetation seed and mulch shall also be applied to the roadway areas as previously discussed. Please refer to the approved landscape plans for the seed,plant, shrub, and mulch types, as well as irrigation needs for the project. C. SWMP Administrator The Storm Water Management Plan (SWMP) shall be developed, implemented, maintained, and revised under the direction of a single individual identified as the SWMP Administrator for the project site. This contact will be available throughout the project as the authority for management of the site stormwater quality. SWMP Administrator: Colin Patterson-Vice President Civil Engineering Pedcor Investments, LLC One Pedcor Square 770 3rd Avenue SW Carmel, IN 46032 (317) 989-6564 Cell (317) 795-3009 Office This SWMP may require modification to accurately reflect the actual field conditions. Recommendations for changes shall be documented in the SWMP inspection reports. SWMP revisions shall be made immediately after field changes. Revisions shall be made as soon as possible, but within 72 hours after installation of new BMP's, materials or methods of installation are made. PAGE 13 of 26 D. Material Handling and Spill Prevention Upon confirmation from the Contractor of the desired locations for fuel, equipment, and materials storage, the SWMP Administrator shall record the location of potential pollutants on the site map. Descriptions of the potential pollutants shall be added to the SWMP log book. The Contractor shall provide a Spill Prevention, Control, and Countermeasure Plan (SPCC) for any petroleum product, chemicals, solvents, or other hazardous materials in use, or in storage, at the work site. Work shall not be started until the plan has been submitted to and approved by the Local Entity Engineer, Fire Department, State Jurisdictional Entities, and the EPA, as applicable. Spill Prevention, Control and Countermeasure Plan shall be developed and implemented to establish operating procedures and the necessary employee training to minimize the accidental releases of pollutants that can contaminate stormwater runoff. The Spill Prevention, Control, and Countermeasure Plan shall contain the following information: 1. Identification and contact information of the ECS and the Contractor and 2. CDOT spill cleanup coordinators. 3. Locations of areas on project site where equipment fueling and servicing operations are permitted. 4. Location of cleanup kits. 5. Quantities of chemicals and locations stored on site. 6. Label system for chemicals and Materials Safety Data Sheets (MSDS) for products. 7. Clean up procedures to be implemented in the event of a spill that does not enter state waters or ground water. 8. Procedures for spills of any size that enter surface waters or groundwater, or have the potential to do so. 9. CDOT's Erosion Control and Stormwater Quality Guide (current edition) contains Spill notification contacts and phone numbers required in the SPCC 10. A summary of the employee training provided. Information in items 1 through 8 shall be updated when it changes. Measures should be undertaken to control building materials, waste, and disposal of excess asphalt and concrete to ensure these materials do not enter waterways or the LID basin or existing offsite detention ponds. Asphalt, concrete, building materials, waste and cleanup by-products shall not be allowed to enter the on-site curb inlets and storm sewer systems nor shall they be allowed to enter the Lid basin or offsite existing detention ponds. Measures shall be undertaken to remove excess waste products from the site and dispose of these waste materials off-site in an appropriate manner. PAGE 14 of 26 The Contractor shall inspect equipment and stored materials daily for leaks or spills and take corrective action to repair such conditions. Pre-approved absorbent material and/or containers shall be provided as preventative measures to avoid contact with soils or pavement. Any periodic refueling of earthmoving equipment on site shall be carefully controlled to ensure these materials are not spilled on the site and will not enter the existing reservoir. In the event of a spill from the site into an on-site curb inlet or storm sewer system, appropriate measures shall be undertaken immediately to contain spilled pollutants and properly remove the spilled materials along with all contaminated soils and prevent future spills from occurring. In addition, measures shall be undertaken to limit off-site soil tracking of mud and debris spillage from vehicles leaving the site. Mud and debris shall not be tracked along roadways nor allowed to enter any non-protected drainage path. Disturbed soils and stockpiles shall be maintained in a roughened surface condition and graded with gentle slopes to enhance infiltration and prevent concentrated runoff from occurring. Stockpiled soil shall be temporarily seeded if stored more than 30 days. Silt fence may be used at the perimeter of the pile. The following measures are suggested to protect stormwater quality and prevent contaminates from migrating off-site. • Washing of vehicles or equipment into the storm drainage system is prohibited. • Soil tracked off-site onto paved roads shall be scraped, collected and disposed of properly. If tracking of soils offsite persists, additional gravel paving of parking areas delivery areas and/or access routes may be necessary to reduce tracking. • Re-fueling operations and equipment maintenance shall be done in dry weather conditions and on level ground to prevent and manage soil contamination. • Designated areas for deliveries shall be established to safely load and unload materials. • Potential flow paths for spills shall be assessed prior to any fuel or hazardous substance transfer. Secondary containment shall be implemented for storage and transfer areas. • Ample sorbent material and containment shall be available to contain a spill. • Any storm drain conveyance within a containment area shall be protected with berms or plugs. • Hazardous materials such as fuel, solvent or fertilizer used on site shall be in a secure covered area. • Provide regular watering operations to moisten soils and reduce fugitive dust during dry conditions. • Locate soil stockpiles a minimum of 50 feet from storm sewer inlets, the LID basin, and the existing offsite detention ponds. Provide temporary seeding and ample irrigation to establish vegetation. • Contractor staging areas, portable toilets, dumpsters, and waste receptacles shall be located at least 50 feet from water courses and inlets, and on a level gravel surface to reduce generating dust and erosion in these high traffic areas. Perform routine maintenance and dispose of waste promptly and properly off-site. PAGE 15 of 26 • A concrete washout basin or potable washout unit shall be provided at least 50 feet from a water course or inlet, with such basin being determined by the Contractor. The Contractor shall notify the Engineer and the City of Fort Collins Erosion Control Inspector as to the location, size, and type of concrete washout that will be utilized for the project. Wash fluids are to be contained with waste product and disposed of properly off-site. • Concrete and asphalt batch plants will not be used on the project site. Premixed paving materials will be delivered to the site and placed. In the event of a spill, spill prevention procedures should be implemented and posted on site. The Stormwater Management Plan Administrator is responsible for coordination efforts and to serve as contact for reporting spills. Spills shall be reported to the Stormwater Management Plan Administrator who will determine if the Colorado Department of Public Health and Environment (24-hour spill reporting 877-518-5608) or downstream water users need to be contacted. Training for cleanup procedures, location of spill kits, and use of materials shall be provided, as well as posted locations and procedures for properly washing out concrete trucks and equipment to prevent discharges from the site. IV. OTHER CONTROLS If dewatering of groundwater or stormwater in excavations is necessary, the owner/operator shall be required to obtain a separate permit from the Colorado Discharge Permit System (CDPS). V. FINAL STABILIZATION AND LONGTERM STORMWATER MANAGEMENT Following site construction, the goal is to achieve a stabilized cover condition to provide long-term stormwater protection. Stabilization is quantified by achieving uniform cover equal to 70% of the pre-disturbance condition. The post-construction condition of the site will provide for the majority of the site being surfaced with concrete walkways, concrete curb and gutter, and asphalt pavement. Stabilization shall be fulfilled, as it relates to stability of soil, because of the hard surfaces constructed and the permanent landscaping features being provided, thus virtually eliminating erosion from the site. Vehicle tracking pads are to be removed as final pavement is placed. Permanent seeding with mulching shall be installed over the remaining disturbed ground. Drainage ditches, pans, culverts, storm pipe, storm structures, and the LID basin outlet structure shall be cleaned of debris and sediment. Sediment and debris on paved surfaces shall be removed and the surfaces swept clean. Eroded slopes and drainage paths shall be repaired by backfilling and grading these areas to finished grade. All silt fence and perimeter control measures shall be removed, following establishment of permanent stable vegetation to the satisfaction of the City of Fort Collins Erosion Control inspector. PAGE 16 of 26 VI. INSPECTION AND MAINTENANCE Inspection and maintenance shall be undertaken at least every 14 days and within 24 hours of a precipitation event or snow melt, which may cause runoff to occur. Routine maintenance inspections shall be conducted to ensure proper function of BMP's and to identify areas in need of additional protection or maintenance. The inspection shall include observation of the construction site perimeter and discharge points (including into a storm sewer system), all disturbed areas, any areas used for material storage that are exposed to precipitation, any areas used for washing of machinery, the vehicle tracking pad, concrete washout, and any other erosion and sediment control measures, as well as the inspection all silt fence, wattles, gravel inlet filters, geotextile fabric, and check dams. Structures shall be reset or repaired, as needed, and any excess sediment deposits removed. Structural BMP's which are identified below, shall be maintained and repaired throughout construction and inspected after every precipitation event and at regularly scheduled inspection times. Silt fence Sediment and debris deposition higher than one-half the fence height, on the upstream side of silt fence must be removed. Inspect fencing following storm events and as needed to allow the erosion control structures to function effectively. Damaged fence must be replaced or repaired as evident during regular inspections. Damage may be recognized as a tear, hole, slumping, or under cutting of flow beneath the fence. Drainage swales Drainage swales shall be inspected for signs of rill erosion, sediment deposition and maintaining the designed alignment. Eroded areas shall be backfilled and subgrade compacted. If topsoil has been applied, new topsoil shall be added. Reseeding shall be completed if swales had been revegetated. Straw wattle check dams Ensure check dams are adequately secured to the ground and properly aligned with the direction of flow. Displaced check dams shall be reset in accordance with the standard detail for installation. Accumulated sediment on the upstream side of the dam shall be removed when the depth exceeds on-half the check dam height. Gravel inlet filters and wattles and gravel bags Inspect inlet filters, wattles and gravel bags after each storm event and during regularly scheduled inspections. Remove sediment deposits when the depth is one-half the of the inlet protection height or when the protection no longer functions, whichever comes first. Reset or reposition as necessary in compliance with the installation detail. Geotextile fabric Inspect geotextile fabric after each storm event and during regularly scheduled inspections. Look for voids under the fabric, loose or missing stakes and secure loose PAGE 17 OF 26 sections. Replace sections which are damaged by tears or holes. Replaced sections shall be installed in accordance with the manufacture's recommendations. Vehicle tracking2ads Inspect vehicle tracking pads after each storm event and during regularly scheduled inspections. Rock lined tracking pads shall be revitalized with new rock when sediment fills the voids and tracking of sediment is evident on the paved surface offsite. Streets and downstream inlet protection shall be cleaned of sediment. Hazardous materials such as fuel, solvent or fertilizer, used on site, shall be in a secure covered area. An inspection log shall be kept up to date to record inspections, repairs, maintenance and recommendations for updates to the SWMP. Additionally, any spills shall be fully documented and include: (1) what the spill material was; (2) reason for spill; (3) date, time of start and finish of spill, quantity, and location of spill, weather conditions, and who was contacted, and how the spill was cleaned; (4) impact to environment, and method of disposal of cleanup materials. All construction activities shall comply with the State of Colorado permitting process for Stormwater Discharges Associated with Construction Activity. A Colorado Department of Public Health and Environment (CDPHE) Permit will be required before any construction grading can begin. THIS SWMP MUST BE AMENDED TO REFLECT SITE CHANGES THAT IMPACT THE EFFECTIVENESS OF BMP'S OR CHANGES IN THE TYPE OF BMP'S USED. THE SWMP SITE MAP SHALL ALSO BE AMENDED AS NEEDED TO REFLECT CHANGES WHICH INCLUDE BMP'S, STOCKPILES LOCATIONS, ETC. PAGE 18 OF 26 VII. REFERENCES 1. "Preliminary Geotechnical Engineering Report, Pedcor Pedcor Mulberry Apartments, Fort Collins, Colorado, Terracon Project No 20205121", dated September 14, 2021, by Terracon, Inc. 2. "Final Drainage and Erosion Control Report for Bloom Filing Three", Fort Collins, Colorado, dated March 12, 2025, by Aspen Engineering. 3. SWMP Guidance Preparing a Stormwater Management Plan (SWMP), Stormwater Construction General Permit, Water Quality Control Division, CDPHE, revised June, 2011. 4. Standard Specifications for Road and Bridge Construction, Colorado Department of Transportation (CDOT),2011. 5. Storm Drainage Design Criteria and Construction Standards by the City of Fort Collins, Colorado, May 1984, Revised January 1997, & Associated UDFCD Updates and New City of Fort Collins Stormwater Criteria manual, adopted January, 2012. 6. Fort Collins Stormwater Criteria Manual, December 2018. PAGE 19 of 26 APPENDIX A PAGE 20 OF 26 STORM WATER MANAGEMENT PLAN FIELD INSPECTION Project: Bloom Filing Three SWMP Administrator: Inspector: Date: Time: Title: Weather: REASON FOR INSPECTION Routine Inspection (14 day minimum) Runoff Response Storm Start End Duration Snow Melt SWMP MANAGEMENT Estimated area of disturbance at time of inspection: acres or % Is SWMP notebook located on site? Are changes to the SWMP documents noted and approved? Are the inspection reports retained in the SWMP notebook: Are corrective actions from the last inspection completed? Is a list of potential pollutants retained at the site? BMP AND EROSION CONTROL INSPECTION ITEMS For each item indicate: "Y"=In Use or"N"= Not used EROSION CONTROL SEDIMENT CONTROL Straw Bale Dike Inlets Filters Pond Outlet Silt Fence Erosion Control Fabric Vehicle Tracking Pad Riprap Structures Pond Sediment Storm Pipe Outlets Perimeter Control Drainage Pans Seeding Mulching Disturbed Surface/Roughening MATERIAL HANDLING, SPILL PREVENTION, WASTE MANAGEMENT AND GENERAL POLLUTION PREVENTION Storage Areas Stockpiled Materials Concrete Washout Sanitary Facilities Street Sweeping Waste Management PAGE 21 OF 26 CONSTRUCTION SITE ASSESSMENT AND CORRECTION ACTIONS All erosion and sediment control practices identified in the SWMP shall be evaluated to ensure that they are maintained and operating correctly. Identify the condition of the BMP, using more than one letter if necessary: (I) Incorrect Installation; (M) Maintenance is needed; (F) BMP failed to operate; (A) Additional BMP is needed; (R) Remove BMP. Additional copies of this form may be used for additional items. Location BMP Condition Corrective Action and Date Preventative Measure Taken Complete & Initials CONSTRUCTION SITE ASSESSMENT Provide Yes or No response for the following questions below. Is there evidence of discharge of sediment or other pollutants from the site? Has sediment or other pollutants discharging from the site reached state waters? Describe the location of sediment/pollutants discharge GENERAL NOTES PAGE 22 OF 26 INSPECTION CERTIFICATION I certify under penalty of law that based on my inspection and observations documented above, the information submitted is to the best of my knowledge and belief, true, accurate, and complete. I am aware that there are significant penalties for submitting false information, including the possibility of fine and imprisonment for knowing violations. Inspector Signature Title Date COMPLIANCE CERTIFICATION Corrective action(s) has been taken, or where a report doesn't identify any incidents requiring corrective action, the report shall contain a signed statement indicating the site is in compliance with the permit to the best of the signer's knowledge and belief. Inspector Signature Title Date NOTE: Modifications to the SWMP must be updated immediately to reflect the field conditions. SWMP Field Inspection forms shall be completed for each inspection event. Changes noted on the Erosion Control Plan and/or Erosion Control Notes and Details sheets shall be kept with the respective inspection form. All inspection documentation and spill reports shall be filed on site and available for review at any time. PAGE 23 OF 26 MATERIALS HANDLING Item Delivered: Date: Actions Taken: SPILL REPORTING Material Spilled: Why Material was Spilled: Quantity: Location: Weather Conditions: Spill Start Time: Spill Stop Time: Cleanup Method: Disposal Method: Enter N/A if item is not applicable to the site Stormwater Management Plan PAGE 24 OF 26 CONTACT INFORMATION/RESPONSIBLE PARTIES Owner/Developer Pedcor Investments, LLC One Pedcor Square 770 3rd Avenue SW Carmel, IN 46032 Phone: (317) 795-3009 SWMP Administrator Pedcor Investments, LLC One Pedcor Square 770 3rd Avenue SW Carmel, IN 46032 Phone: (317) 795-3009 office Colin Patterson Phone: (317) 989-6564 cell email: copatterson@pedcor.net This SWMP Prepared by Aspen Engineering 19 Old Town Square Suite 238 Phone: (970) 419-4344 Fort Collins, CO 80524 email: johng@Aspen-Engineer.com Civil Engineer Aspen Engineering John Gooch 19 Old Town Square Suite 238 Phone: (970) 420-5345 Fort Collins, CO 80524 email: johng@Aspen-Engineer.com Emergency Contacts Poudre Fire Authority Emergency: 911 Administration Non-Emergency Phone: (970) 416-2892/(970)416-2600 102 Remington St. Fort Collins, CO 80524 Permitting Agency Colorado Department of Public Health and Environment(CDPHE) Water Quality Control Division WQCD-Permits P-132 Phone: (303)692-2000 4300 Cherry Creek Drive South www.cdphe.state.co.us Denver, CO 80246 24-hour spill reporting 1-877-518-5608 PAGE 25 OF 26 Site Contractor Company: Contact: Phone: Street: Fax: City, State Zip email: Site Sub-Contractor Company: Contact: Phone: Street: Fax: City, State Zip email: Site Sub-Contractor Company: Contact: Phone: Street: Fax: City, State Zip email: Site Sub-Contractor Company: Contact: Phone: Street: Fax: City, State Zip email: Site Sub-Contractor Company: Contact: Phone: Street: Fax: City, State Zip email: PAGE 26 OF 26 .. - rie;, radnech t omesi . . - -.. 9 ef.0.an' a i yin a .�ir iiev t SA 3�l ' !"tlev;s�lms\,ac•Fi trLut on LenlN, r ,r i racwr,u oicc r � o. Soil Map—Larimer County Area,Colorado 3: (Bloom Filing Three) 0 0 49M 498370 49W 498550 498640 498730 40°35'23"N - Vk 40°35'23"N .�I I J 1 �Soi'I�^':Ma,p m y not be valid at this s ale. 40°35'0"N �""' I 40°35'0"N 498280 498370 41. 491. 41.1 498730 3 3 V Map Scale:1:3,500 T printed on A portrait(8.5"x 11")sheet. - Meters N 0 50 100 200 300 Feet 0 150 300 600 900 Map projection:Web Mercator Comer coordinates:WGS84 Edge tics:11TM Zone 13N WGS84 USDA Natural Resources Web Soil Survey 7/14/2022 Conservation Service National Cooperative Soil Survey Page 1 of 3 Soil Map—Larimer County Area,Colorado (Bloom Filing Three) MAP LEGEND MAP INFORMATION Area of Interest(AOI) - Spoil Area The soil surveys that comprise your AOI were mapped at Area of Interest(AOI) 1:24,000. Q Stony Spot Soils Very Stony Spot Warning:Soil Map may not be valid at this scale. Soil Map Unit Polygons Wet Spot Enlargement of maps beyond the scale of mapping can cause Soil Map Unit Lines misunderstanding of the detail of mapping and accuracy of soil 13 Other line placement.The maps do not show the small areas of Soil Map Unit Points Special Line Features contrasting soils that could have been shown at a more detailed .� Special Point Features scale. V Blowout Water Features Streams and Canals Please rely on the bar scale on each map sheet for map Borrow Pit measurements. Transportation X Clay Spot .,. Rails Source of Map: Natural Resources Conservation Service Closed Depression Web Soil Survey URL: ..i Interstate Highways Coordinate System: Web Mercator(EPSG:3857) Gravel Pit US Routes Maps from the Web Soil Survey are based on the Web Mercator Gravelly Spot Major Roads projection,which preserves direction and shape but distorts distance and area.A projection that preserves area,such as the r Landfill Local Roads Albers equal-area conic projection,should be used if more Lava Flow Background accurate calculations of distance or area are required. Marsh or swamp ® Aerial Photography This product is generated from the USDA-NRCS certified data as of the version dates)listed below. Mine or Quarry Soil Survey Area: Larimer County Area,Colorado Miscellaneous Water Survey Area Data: Version 16,Sep 2,2021 Perennial Water Soil map units are labeled(as space allows)for map scales Rock Outcrop 1:50,000 or larger. Saline Spot Date(s)aerial images were photographed: Jun 8,2021—Jun 12, 2021 Sandy Spot The orthophoto or other base map on which the soil lines were .. Severely Eroded Spot compiled and digitized probably differs from the background Sinkhole imagery displayed on these maps.As a result,some minor shifting of map unit boundaries may be evident. Slide or Slip oa Sodic Spot USDA Natural Resources Web Soil Survey 7/14/2022 Conservation Service National Cooperative Soil Survey Page 2 of 3 Soil Map—larimer County Area,Colorado Bloom iling Three Map Unit Legend Map Unit Symbol Map Unit Name Acres in AOI Percent of AOI 7 Ascalon sandy loam,0 to 3 23.0 33.2°/ percent slopes 4 Garrett loam,0 to 1 percent 41.1 59.1°/0 slopes 42 Gravel pits 0.3 0.411/c 73 Nunn clay loam,0 to 1 percent 5.1 7.3°/ slopes Totals for Area of Interest 69.4 100.00/ i sDA Natural Resources Web Soil Survey 7/14/2022 Conservation Service National Cooperative Soil Survey Page 3 of 3 Map Unit Description:Ascalon sandy loam,0 to 3 percent slopes—Larimer County Area, Colorado Larimer County Area, Colorado 7—Ascalon sandy loam, 4 to 3 percent slopes Map Unit Setting National map unit symbol: 2sw13 Elevation: 3,870 to 5,960 feet Mean annual precipitation: 12 to 16 inches Mean annual air temperature: 46 to 57 degrees F Frost-free period: 135 to 160 days Farmland classification: Prime farmland if irrigated Map Unit Composition Ascalon and similar soils:85 percent Minor components: 15 percent Estimates are based on observations, descriptions, and transects of the mapunit. Description of Ascalon Setting Landform: I me rfl uves Landform position (two-dimensional): Summit Down-slope shape: Linear Across-slope shape: Linear Parent material:Wind-reworked alluvium and/or calcareous sandy eolian deposits Typical profile Ap-0 to 6 inches: sandy loam Bt1 -6 to 12 inches: sandy clay loam Bt2- 12 to 19 inches: sandy clay loam Bk- 19 to 35 inches: sandy clay loam C-35 to 80 inches: sandy loam Properties and qualities Slope: 0 to 3 percent Depth to restrictive feature: More than 80 inches Drainage class:Well drained Runoff class: Low Capacity of the most limiting layer to transmit water (Ksat): Moderately high to high (0.60 to 2.00 in/hr) Depth to water table: More than 80 inches Frequency of flooding: None Frequency of ponding: None Calcium carbonate, maximum content: 10 percent Maximum salinity.Nonsaline to very slightly saline(0.1 to 2.0 mmhos/cm) Sodium adsorption ratio, maximum: 1.0 Available water supply, 0 to 60 inches: Moderate (about 7.7 inches) USDA Natural Resources Web Soil Survey 7/14/2022 �� Conservation Service National Cooperative Soil Survey Page 1 of 2 Map Unit Description:Ascalon sandy loam,0 to 3 percent slopes---Larimer County Area, Colorado Interpretive groups Land capability classification (irrigated). 3e I '' ' ion (nonirrigated). 4c Hydrologic Soil Group: B Ecological site: R067BY024CO -Sandy Plains Hydric soil rating: No Minor Components Olnest Percent of map unit: 10 percent Landform: I nterfl uves Landform position (two-dimensional):Summit Landform position (three-dimensional):Tread Down-slope shape: Linear Across-slope shape: Linear Ecological site: R067BY024CO -Sandy Plains Hydric soil rating: No Ilona Percent of map unit: 5 percent Landform: Interfluves Landform position (two-dimensional): Summit Down-slope shape: Linear Across-slope shape: Linear Ecological site: R067BY024CO -Sandy Plains Hydric soil rating: No Data Source Information Soil Survey Area: Larimer County Area, Colorado Survey Area Data: Version 16, Sep 2, 2021 ;.5).,, Natural Resources Web Soil Survey 7/14/2022 == Conservation Service National Cooperative Soil Survey Page 2 of 2 Map Unit Description:Garrett loam,0 to 1 percent slopes—Larimer County Area,Colorado Larimer County Area, Colorado 40—Garrett loam, 0 to 1 percent slopes Map Unit Setting National map unit symbol: jpwg Elevation: 5,200 to 6,000 feet Mean annual precipitation: 13 to 15 inches Mean annual air temperature: 48 to 50 degrees F Frost-free period: 135 to 150 days Farmland classification: Prime farmland if irrigated Map Unit Composition Garrett and similar soils: 85 percent Minor components: 15 percent Estimates are based on observations, descriptions, and transects of the mapunit. Description of Garrett Setting Landform:Terraces,fans Landform position (three-dimensional): Base slope, tread Down-slope shape: Linear Across-slope shape: Linear Parent material:Alluvium derived from sandstone and shale Typical profile H1 -0 to 8 inches: loam H2-8 to 39 inches: sandy clay loam H3-39 to 60 inches: sandy loam Properties and qualities Slope: 0 to 1 percent Depth to restrictive feature: More than 80 inches Drainage class:Well drained Runoff class: Low Capacity of the most limiting layer to transmit water (Ksat): Moderately high to high (0.60 to 2.00 in/hr) Depth to water table: More than 80 inches Frequency of flooding: None Frequency of ponding:None Calcium carbonate, maximum content. 10 percent Maximum salinity: Nonsaline to very slightly saline (0.0 to 2.0 mmhos/cm) Available water supply, 0 to 60 inches: Moderate (about 8.3 inches) Interpretive groups Land capability classification (irrigated): 2w Land capability classification (nonirrigated): 3e Hydrologic Soil Group: B USDA Natural Resources Web Soil Survey 7/14/2022 Conservation Service National Cooperative Soil Survey age 1 of 2 Map Unit Description:Garrett loam,0 to 1 percent slopes—Larimer County Area,Colorado Ecological site: R049XY036CO-Overflow Hydric soil rating: No Minor Components Harlan Percent of map unit:6 percent Ecological site: R067BZ008CO- Loamy Slopes Hydric soil rating: No Barnum Percent of map unit:5 percent Ecological site:R067BY036CO -Overflow Hydric soil rating: No Connerton Percent of map unit:4 percent Ecological site: R067BZ008CO- Loamy Slopes Hydric soil rating: No Data Source Information Soil Survey Area: Larimer County Area, Colorado Survey Area Data: Version 16, Sep 2, 2021 USDA Natural Resources Web Soil Survey 7/14/2022 Conservation Service National Cooperative Soil Survey age 2 of 2 3� K Factor,Whole Soil—Larimer County Area,Colorado 3: (Bloom Filing Three) 0 0 49MM 498370 498460 498550 498640 498730 40'35'23"N - Vk 40o 35 23"N I 8 "Now- oil,�'Ma,p m•y not be valid at this s ale. 40'35'0"N �""' I 40o 35'0"N 498280 498370 498460 498550 498640 498730 3 3 iV Map Scale:1:3,500 T printed on A portrait(8.5"x 11")sheet. - Meters N 0 50 100 200 300 Feet 0 150 300 600 900 Map projection:Web Mercator Comer coordinates:WGS84 Edge tics:11TM Zone 13N WGS84 USDA Natural Resources Web Soil Survey 7/14/2022 Conservation Service National Cooperative Soil Survey Page 1 of 3 K Factor,Whole Soil—Larimer County Area,Colorado (Bloom Filing Three) MAP LEGEND MAP INFORMATION Area of Interest(AOI) . • .24 Streams and Canals The soil surveys that comprise your AOI were mapped at Area of Interest(AOI) 1:24,000. • 28 Transportation Soils . 32 Rails Warning:Soil Map may not be valid at this scale. Soil Rating Polygons . • 37 .v Interstate Highways Enlargement of maps beyond the scale of mapping can cause 02 US Routes misunderstanding of the detail of mapping and accuracy of soil 0 .05 • 0 .43 line placement.The maps do not show the small areas of .,.� 49 Major Roads contrasting soils that could have been shown at a more detailed 0 .10 scale. 0 .15 ti 55 Local Roads ,y 64 Background Please rely on the bar scale on each map sheet for map 0 .17 . Aerial Photography measurements. • Not rated or not available 0 .2o bl Source of Map: Natural Resources Conservation Service 0 24 Soil Rating Points Web Soil Survey URL: 02 Coordinate System: Web Mercator(EPSG:3857) 0 .28 .05 Maps from the Web Soil Survey are based on the Web Mercator 0 .32 ® projection,which preserves direction and shape but distorts E3 10 distance and area.A projection that preserves area,such as the 0 .37 ❑ 15 Albers equal-area conic projection,should be used if more 0 .43 accurate calculations of distance or area are required. 49 O .17 This product is generated from the USDA-NRCS certified data 0 ❑ .20 as of the version date(s)listed below. 0 .55 0 .24 Soil Survey Area: Larimer County Area,Colorado ® .64 0 28 Survey Area Data: Version 16,Sep 2,2021 0 Not rated or not available Soil map units are labeled(as space allows)for map scales Soil Rating Lines 0 .32 1:50,000 or larger. .02 O .37 Date(s)aerial images were photographed: Jun 8,2021—Jun ... .05 O .43 12,2021 • 10 48 The orthophoto or other base map on which the soil lines were compiled and digitized probably differs from the background • .15 ■ .55 imagery displayed on these maps.As a result,some minor 64 shifting of map unit boundaries may be evident. • 20 E3 Not rated or not available Water Features USDA Natural Resources Web Soil Survey 7/14/2022 Conservation Service National Cooperative Soil Survey Page 2 of 3 K Factor,Whole Soil—Larimer County Area,Colorado Bloom Filing Three K Factor, Whole Soil Map unit symbol Map unit name Rating Acres in AOI Percent of AOI 7 Ascalon sandy loam,0 .17 19.8 37.4% to 3 percent slopes 35 Fort Collins loam,0 to 3 .43 0.0 0.1% percent slopes 40 Garrett loam,0 to 1 .32 33.0 62.2% percent slopes 42 Gravel pits .02 0.1 0.2% Totals for Area of Interest 53.0 100.0% Description Erosion factor K indicates the susceptibility of a soil to sheet and rill erosion by water. Factor K is one of six factors used in the Universal Soil Loss Equation (USLE) and the Revised Universal Soil Loss Equation (RUSLE)to predict the average annual rate of soil loss by sheet and rill erosion in tons per acre per year. The estimates are based primarily on percentage of silt, sand, and organic matter and on soil structure and saturated hydraulic conductivity (Ksat). Values of K range from 0.02 to 0.69. Other factors being equal, the higher the value, the more susceptible the soil is to sheet and rill erosion by water. "Erosion factor Kw(whole soil)" indicates the erodibility of the whole soil. The estimates are modified by the presence of rock fragments. Factor K does not apply to organic horizons and is not reported for those layers. Rating Options Aggregation Method: Dominant Condition Component Percent Cutoff. None Specified Tie-break Rule: Higher Layer Options (Horizon Aggregation Method):Surface Layer(Not applicable) USDA Natural Resources Web Soil Survey 7/14/2022 Conservation Service National Cooperative Soil Survey Page 3 of 3 Wind Erodibility Group—Larimer County Area,Colorado a (Bloom Filing Three) 0 498250 498320 498390 498460 498530 498600 498670 40°35'21"N -1 - �-^ - g 40°35 21"N 4 p 0 0 0 Sail Map m.y not be valid at this s al 40°35 2"N 40°35'2"N 498250 498M 498390 498460 498530 498600 498670 3 3 "v Map Scale:1:2,850 if printed on A portrait(8.5"x 11")sheet. N Meters 0 40 80 160 240 Feet 0 100 200 400 600 Map projection:Web Mercator Comer coordinates:WGS84 Edge tics:UTM Zone 13N WGS84 USDA Natural Resources Web Soil Survey 7/14/2022 Conservation Service National Cooperative Soil Survey Page 1 of 3 Wind Erodibility Group—Larimer County Area,Colorado (Bloom Filing Three) MAP LEGEND MAP INFORMATION Area of Interest(AOI) 0 1 The soil surveys that comprise your AOI were mapped at Area of Interest(AOI) a 2 1:24,000. Soils 0 3 Warning:Soil Map may not be valid at this scale. Soil Rating Polygons 1 0 4 Enlargement of maps beyond the scale of mapping can cause misunderstanding of the detail of mapping and accuracy of soil 0 2 p 4L line placement.The maps do not show the small areas of 0 3 O 5 contrasting soils that could have been shown at a more detailed scale. 0 4 13 6 Please rely on the bar scale on each map sheet for map 0 4L 7 measurements. 0 5 8 Source of Map: Natural Resources Conservation Service 0 6 D Not rated or not available Web Soil Survey URL: Coordinate System: Web Mercator(EPSG:3857) 0 7 Water Features Streams and Canals Maps from the Web Soil Survey are based on the Web Mercator 0 8 projection,which preserves direction and shape but distorts Transportation distance and area.A projection that preserves area,such as the 0 Not rated or not available .r. Rails Albers equal-area conic projection,should be used if more Soil Rating Lines Interstate Highways accurate calculations of distance or area are required. i.s ti 1 This product is generated from the USDA-NRCS certified data as 2 US Routes of the version date(s)listed below. . • . 3 Major Roads Soil Survey Area: Larimer County Area,Colorado . Local Roads Survey Area Data: Version 16,Sep 2,2021 . . 4 Background Soil map units are labeled(as space allows)for map scales . . 4L Aerial Photography 1:50,000 or larger. . 5 Date(s)aerial images were photographed: Jun 8,2021—Jun 12, • • 6 2021 ..i 7 The orthophoto or other base map on which the soil lines were compiled and digitized probably differs from the background ,y 8 imagery displayed on these maps.As a result,some minor shifting of map unit boundaries may be evident. • . Not rated or not available Soil Rating Points USDA Natural Resources Web Soil Survey 7/14/2022 Conservation Service National Cooperative Soil Survey Page 2 of 3 Wind Erodibility Group—Larimer County Area,Colorado Bloom Filing Three Wind Erodibility Group Map unit symbol Map unit name Rating Acres in AOI Percent of AOI 7 Ascalon sandy loam,0 4L 18.8 44.0% to 3 percent slopes � 35 Fort Collins loam,0 to 3 5 0.1 1 0.1% percent slopes 40 Garrett loam,0 to 1 5 23.8 55.7% percent slopes 42 Gravel pits 8 0.1 0.3% Totals for Area of Interest 42.7 100.0% Description A wind erodibility group (WEG) consists of soils that have similar properties affecting their susceptibility to wind erosion in cultivated areas. The soils assigned to group 1 are the most susceptible to wind erosion, and those assigned to group 8 are the least susceptible. Rating Options Aggregation Method: Dominant Condition Component Percent Cutoff. None Specified Tie-break Rule: Lower USDA Natural Resources Web Soil Survey 7/14/2022 Conservation Service National Cooperative Soil Survey Page 3 of 3 Erosion Control Escrow Estimate 3/12/2025 Project: BLOOM FILING THREE Disturbed Acres: 16.36 BMP Amount Estimated Unit Total EROSION CONTROL BMPs Units Quantity Price Price Gravel Curb Check Bags (IP) EA 0 $300.00 $0.00 Inlet Protection (IP) EA 45 $300.00 $13,500.00 Concrete Washout (CW) EA 1 $1,100.00 $1,100.00 Vehicle Tracking Control (VTC) EA 6 $670.00 $4,020.00 Hay or Straw Dry Mulch (1-5%) AC 16.36 $500.00 $8,180.00 Perimeter Silt Fence LF 3709 $2.00 $7,418.00 Straw Wattle EA 0 $150.00 $0.00 Sub-Total: $34,218.00 1.5 x Sub-Total: $51,327.00 Amount of security. $51,327.00 Reseeding Amount Total Acres x Price/acre: $16,360.00 Unit Price of Seeding per acre: $1,000.00 Sub-Total: $16,360.00 1.5 x Sub-Total: $24,540.00 Amount to Re-seed: $24,540.00 Miniumum Escrow Amount Minimum escrow amount: $3,000.00 Final Escrow Amount Erosion Control Escrow: $51,327.00 "The amount of the security must be based on one and one-half times the estimate of the cost to install the approved measures,or one and one-half times the cost to re-vegetate the disturbed land to dry land grasses based upon unit cost determined by the City's Annual Revegetation and Stabilization Bid, whichever is greater.In no instance,will the amount of security be less than one thousand f ve hundred dollars($1,500)for residential development or three thousand dollars($3,000)for commercial development" 2/25/2025 11:34 AM A:\AspenProjects\801-004-East Mulberry Apartments\Design\Drainage\Erosion Escrow\Erosion_Escrow-Bloom Filing Three.xls 7 1 s. CALL UTILITY NOTIFICATION ZE CENTER OF COLORADO IP 1 -800-922-1987 E �, — LIMITS OF DISTURBANCE ___ _ ,lE CALL 2 BUSINESS DAYS IN ADVANCE I - INTERNATIONAL BLVD. LIMITS OF DISTURBANCE w: BEFORE YOU DIG,GRADE,OR EXCAVATE HF C EX PROPERTY JASPENI OHE— ===�OHE _0HE MEMBER UTILITIES. w i BOUND ===�OHE aE OHE IP FOR THE MARKING OF UNDERGROUND 'ARY/ROW DHE IP ui is SF S_ 4& is — — — — — — — — — — — — — — — — w uj OF EX PROP'ERTY� BOUNDARY/ROW. U- SCALE: 1 60' 45 V) EX PROPERTY BOUNDARY/ROW • ol 60' 120' SF LL LIMITS OF DISTURBANCE ✓ LIMITS OF DISTURBANCE NOTES: SF 1. PERIMETER SILT FENCE SHALL BE INSTALLED ALONG > PROPERTY BOUNDARY, AND IS SHOWN OFFSET FROM U- PROPERTY BOUNDARY ON THIS PLAN FOR CLARITY. V) PERIMETER SILT FENCE AROUND SITE = 3,709 LF . WHERE �CCESS DRIVES OCCUR AND TRACKING PADS ARE INSTALLED, 4z SILT FENCE WILL NOT OCCUR AND WILL STOP AT EDGE OF TRACKING PADS. SILT FENCE IS ALSO THE LIMITS OF L- — — — — — — — — — — LOT 4/PHASE 2 — — — — — — cA DEVELOPMENT. > LOT 3/PHASE 1 � 2. ALL DISTURBED AREAS ARE TO BE SEEDED AND MULCHED. MASTERPLAN 3. STOCK PILES SHALL NOT TO EXCEED 10' IN HEIGHT. LL_ PROP CONTOUR 4. ALL OFFSITE AREAS DISTURBED DURING CONSTRUCTION ARE U) < (TYP) TO BE RE-VEGETATED AND RETURNED TO HISTORIC I i I > CONDITION. STRAW WATTLES OR GRAVEL INLET FILTERS MAY BE INSTALLED (IF NECESSARY AND AS REQUIRED) ON EXISTING, OFFS ITE/DOWNSTREAM INLETS. > V) 5. VEHICLE TRACKING PAD(S) LOCATIONS SHALL BE DETERMINED BY THE CONTRACTOR, PRIOR TO CONSTRUCTION, AND SHALL BE INSTALLED ACCORDINGLY. 6. SEE SHEET EC-04 & EC-05 FOR EROSION CONTROL NOTES AND MASTERPLAN — — — — — — — — PROP CONTOUR I cn DETAILS. (TYP) C/) EX PROPERTY BOUNDARY/ROW > II I u_ CHECKED BY: JRG EX PROPERTY OW ER�BOUNDARY/ROW LL_ DESIGNED BY: JRG ( ) DRAWN BY: JRG LIMITS OF DISTURBANCE II I LL_ LEGEND E.H. BARKER'ET A:L V) EXISTING MAJOR CONTOUR-5 FT INTERVAL (PARCEL NO.870""'0 c :1 rr Cn EXISTING MINOR CONTOUR- 1 FT INTERVAL I EXISTING DIRECTION OF SURFACE FLOW Q cf) vTc INSTALL VEHICLE TRACKING PAD < 1 0sF csF SF — INSTALL SILT FENCE (LOD) II I - O W (n MTA��NLLPTEAWE\�NKA4§ &WAP�&MEN N z . i 0 IP C—) INSTALL CURB INLET GRAVEL FILTER w IP O INSTALL AREA INLET GRAVEL FILTER u-II I cn Ab— INSTALL GRAVEL CURB CHECK BAG II I 0 0 0 LL_ LIMITS OF DISTURBANCE Mu + HAY OR STRAW DRY MULCH (1-5%) I I /II Fr7 INSTALL CONCRETE WASHOUT 0 Z J Rs RS INSTALL ROCK SOCK FILTER z 0 0 L. U U INSTALL NORTH AMERICAN GREEN C350 (6 cn j z oz RR INSTALL RIPRAP PROTECTION (TYPE M D50=12") J LIMITS OF DISTURBANCE "mill J /L c: LL o 0 FUEL & STORAGE LOCATION Lo u Ld uj MASTERPLAN PROP CONTOUR i TRASH LOCATION Ld (TYP) SF MASTERPLAN W PROP CONTOUR 0 (TYP) PORTABLE TOILET LOCATION < LL < 0 U) 0 IO/C TRAIL] OFFICE/CONSTRUCTION TRAILER 0 < 0 U- rrs III=III=III TEMPORARY TOPSOIL STOCKPILE :i 0 > 0 _j EX PROPERTY L I j BOUNDARY/ROW ILL. u z V) o Wo LIMITS OF DISTURBANCE oo o rl 0 < ct IO/C TRAIL. PT LL_ 0 REG .21 SF V)LL_ c W EX PROPERTY LIMITS OF DISTURBANCE BOUNDARY/ROW SF Ld IP STREET CUT NOTE: o c I) LIMITS OF STREET CUT ARE APPROXIMATE. FINAL PROJECT NO: 801-004 c; _SF S o SF SF SF SF LIMITS ARE TO BE DETERMINED IN THE FIELD BY DATE: MARCH 12,2025 flo w THE CITY ENGINEERING INSPECTOR. ALL REPAIRS EX PROPERTY 0 F SF SF SF SF IP LIMITS OF y ARE TO BE IN ACCORDANCE WITH THE CITY BOUNDARY/ROW o_ SHEET NO: EC-0 I DISTURBANCE STREET REPAIR STANDARDS. i i <LIMITS OF DISTURBANCE DONELLA DRIVE 'ALI 1 OF 5 p. T I Y NOTIFICATION - - "" -CALL U IL T •.... a :. .. a .:.i'. ..♦ t.{ .: '::..:..:' ..A. S :j:. y(:' l f: 1, .Y.: CENTER OF COLORADO I � • . 1 -800-922-1987 a f LIMITS OF DISTURBANCE 46 CALL 2 BUSINESS DAYS IN ADVANCE ✓ d �` INTERNATIONAL BLVD. LIMITS OF DISTURBANCE -- BEFORE YOU DIG,GRADE,OR EXCAVATE EX PROPERTY E ASPEN �� FOR THE MARKING OF UNDERGROUND = - - OHE— _ _ OHE Qp}E HE E MEMBER UTILITIES. _ _ _ _ �\\,1' L 1A1-�{- BOUNDARY/ROW _ _ _ — — — _ _ __ — — — —E— — — - w _ _ _ — ` �� _ — iS S AS AS SF AS is �S �S - SF S vr� -- - IP��$ - - _ - - - - - - 1— 1 I EXI PIR�OPERTYI / h MULCH 46 4g 46 2I2I1 • • ' . r~� •� I BOUNDARY!ROW, I I 46 � o � -q-0� a = — EX PROPERTY SCALE: 1° 60' n I BOUNDARY/ROW • MI I I BUILDING 15 _ BUILDING 14 uj " � � I I Ir 1► 4I �' I _ - 0' 60' 120' I �rnl I I II I �5S MULCH , LL / I N LIMITS OF DISTURBANCE BUILDING 13 LIMITS OF DISTURBANCE �I r 71 45� G CWOU SF Q ��IIIIIII� Illllj MULCH ►� �' �' C 1 ►� MULCH cp l C4 1 I .� I IIII 1 l � I 4 EX TOPO c' I II I II I I I I I 45 N CONTOUR q5 (TYP) >- M I � 1 IIII I I I IIII _ _ s D� LOT 4/PHASE 2 I I I II I I I I I LOT I3/PHASE 1 IIIII I MU 94 44_ `PROP 5'TYPE 1 - N I I I I I I I I I I I to I 4,3 �-, i ►� R INLETTi / NOTES: ExTopo I I Ilj II►1 I I� / ANGELA AVENUE MULCH 4 IP IIII 4 C MASTERPLAN Q CONTOUR � 2 p,D, II I I —► IP a PROP CONTOUR LEGEND 1. PERIMETER SILT FENCE SHALL BE INSTALLED ALONG (TYP) _- � PROPERTY BOUNDARY, AND IS SHOWN OFFSET FROM °u I M BUILDING 12 IP - 44 - IP 0 Q (TYP) 35- PROPOSED MAJOR CONTOUR- 5 FT INTERVAL PROPERTY BOUNDARY ON THIS PLAN FOR CLARITY. I I PROP 10' 1 , BUILDING 10 I o PERIMETER SILT FENCE AROUND SITE = 3,709 LF . WHERE I I��I I 1 PROP 10' TYPE R INLET IP N sF _Q 36- PROPOSED MINOR CONTOUR- 1 FT INTERVAL 7) ACCESS DRIVES OCCUR AND TRACKING PADS ARE INSTALLED, I I ICI II I I TYPE R INLET w SILT FENCE WILL NOT OCCUR AND WILL STOP AT EDGE OF I 1 III III TRACKING PADS. SILT FENCE IS ALSO THE LIMITS OF 1 1 I IIII IIIII BUILDING 11 `t MULCH I �` Q EXISTING MAJOR CONTOUR - 5 FT INTERVAL o DEVELOPMENT. 1 I I I I II IF = + EXISTING MINOR CONTOUR- 1 FT INTERVAL p 2. ALL DISTURBED AREAS ARE TO BE SEEDED AND MULCHED. 1 I I I I II II IP 5 43 43 -- P DIRECTION F R 42 - - 42 I = PROPOSED DIREC 10 O SURFACE FLOW MASTERPLAN I 3. STOCK PILES SHALL NOT TO EXCEED 10' IN HEIGHT. PROP CONTOUR I III l vTc INSTALL VEHICLE TRACKING PAD w (TYP) It I O G] 4. ALL OFFSITE AREAS DISTURBED DURING CONSTRUCTION ARE III I PROP 10' ,l �� EX PROPERTY 40 TYPE R INLET + BOUNDARY/ROW SF SF INSTALL SILT FENCE TO BE RE-VEGETATED AND RETURNED TO HISTORIC I I I 42 CONDITION. STRAW WATTLES OR GRAVEL INLET FILTERS MAY 11 I I I I II I �^ M0�" 4� M w a a a a a a a BE INSTALLED (IF NECESSARY AND AS REQUIRED) ON I I III IIII II �4 ° t } O INSTALL 12" STRAW WATTLE CHECK DAM EXISTING, OFFSITE/DOWNSTREAM INLETS. 1 I I I I I II 2 39 \ IP INSTALL CURB INLET GRAVEL FILTER I I III I� MULa - O O CHECKED BY: JRG 5. VEHICLE TRACKING PAD(S) LOCATIONS SHALL BE DETERMINED I I.I BY THE CONTRACTOR, PRIOR TO CONSTRUCTION, AND SHALL EX PROPERTY IP „o r IP O INSTALL AREA INLET GRAVEL FILTER BOUNDARY/ROW i pL BE INSTALLED ACCORDINGLY. I I x 1 / IF LL_ DESIGNED BY: JRG 1 i III I� SF IP ' �► �� to GB INSTALL GRAVEL CURB CHECK BAG 6. SEE SHEET EC-04 & EC-05 FOR EROSION CONTROL NOTES AND I III IIII I � LTOT OT �ti DRAWN BY: JRG DETAILS. I I I �ti LIMITS OIIDIIiURBANCEI � �1 o IP PLAYGROUND I —♦ TYPE ROINLET MU Mu HAY OR STRAW DRY MULCH (1-5%) 7. NORTH AMERICAN GREEN C350 FABRIC WILL BE UTILIZED AT I I III �I PROP 10' 3 NN MINOR OUTFALL LOCATIONS SHOWN, WITH CONCRETE I III,.I I / TYPE RINLET- —� S D- I E.H. BARKER ET.AL. (n FOREBAYS UTILIZED WHERE LARGER STORM FLOWS WILL I I (PARCELN0,87018400002) — I • cwo n WO INSTALL CONCRETE WASHOUT DISCHARGE TO THE LARGE PROPOSED LID BASIN IN THE I I N i I I' I it 42- t BUILDING 8 41 M°�" MULCH I o SOUTHERN END OF THE SITE. I 1 IIII III o 0 f o o _36 _ _ RS RS INSTALL ROCK SOCK FILTER � ► I . O 8. IF VERTICAL CONSTRUCTION IS TO COMMENCE WITHIN 30 DAYS I I I I I IIII �' ' o� GF INSTALL NORTH AMERICAN GREEN C350 mumOF COMPLETION OF UTILITY PLAN CONSTRUCTION, i 1 l i l I I 111 I I I I N In CONTRACTOR SHALL PROVIDE STRAW WATTLES OR SILT FENCE I III I I I Q 2 POOL IP INSTALL RIPRAP PROTECTION (TYPE M Dso=12") AT THE BACK OF WALK SURROUNDING BUILDING PADS. I 1 III' 1 I O 2 IP SF CD 9. IF VERTICAL CONSTRUCTION IS TO COMMENCE MORE THAN 30 1 I 111 I � III � � MULCH I � DAYS AFTER COMPLETION OF UTILITY PLAN CONSTRUCTION, i I III III I Iy� W BUILDING 9 IP A BUILDING 7 LL Z CONTRACTOR SHALL PROVIDE SEEDING AND MULCHING ON I I I _N N 1� EXPOSED SOIL SURFACES. PRIOR TO GROUND BREAKING OF I I III III �I O I 40 �� V- COMMUNITY MULCH PROP 10' ,Q VERTICAL CONSTRUCTION COMMENCING, CONTRACTOR SHALL I I IT 111 I J 1 ( TYPE R INLET I II Lu _ BUILDING - 35— PROVIDE STRAW WATTLES OR SILT FENCE AT THE BACK OF I I 111 I 0 S I A WALK SURROUNDING BUILDING PADS. I I IIIII III I 3 IP IPC. N KEY NOTE LEGEND 0.. IP o I 41 �1. /� o � I �� � � 10. CONTRACTOR SHALL PHASE CONSTRUCTION OF RAIN GARDENS I I I;� I 1O PROPOSED 12 NYLOPLAST DRAIN BASIN O 0 PER THE FOLLOWING PROCESS: I I I II I 42_ IP — 42 — A) CONSTRUCT UNPERFORATED PORTIONS OF RAIN GARDEN I I I I I " _ O PROPOSED 18" NYLOPLAST DRAIN BASIN M I I '- ,� � 3 � 2 LIMITS OF DISTURBANCE 'Q Fi.r UNDERDRAIN OUTFALL DURING OVERLOT AND POND I I III { PROPOSED 24" NYLOPLAST DRAIN BASIN CONSTRUCTION. UNPERFORATED STUBS SHALL BE CAPPED I ! I 1 I IIII AND MARKED. CONTRACTOR SHALL NOT INSTALL THE RAIN I �J I I II I III I �^� M' " MULCH 4�\ BODE BOULEVARD M"� EXTOPO O PROPOSED 30" NYLOPLAST DRAIN BASIN O i. GARDEN BIORETENTION SAND MEDIA OR GRAVEL LAYERS AT I I I I I PROP 10' T CONTOUR 0 THIS TIME. I I I I 1 I I I III } TYPE R PROP 5'TYPE t (TYP) O5 PROPOSED NEENAH R2586-M AREA INLET W/ MH BASE B) ONCE PAVEMENT SURFACES HAVE BEEN CONSTRUCTED AND I , J I III © �� INLET Q �� RINLET ° z r 1 j 1 BUILDING PADS HAVE HAD PERIMETER EROSION CONTROL I I III w O PROPOSED NEENAH R2580-A AREA INLET W/ MH BASE �/ v MEASURES INSTALLED, CONTRACTOR SHALL INSTALL I III I - IP -34 Z Z PERFORATED PORTIONS OF RAIN GARDEN UNDERDRAIN, IP • 0 CONNECTING TO THE UNPERFORATED STUB. AT THIS TIME I I I 1 J THE CONTRACTOR SHALL INSTALL THE RAIN GARDEN LIMITS OF DISTURBANCE - L/ / J Z (n BIORETENTION SAND MEDIA AND GRAVEL LAYERS. I I IIIII t I BUILDING 5 I O z MASTERPLAN 111 + I s IP I[if 1111 C) MASTERPLAN w PROP CONTOUR YP) I I SF I BUILD I N G 6 I 4 I I BUILDING 4 PROP CONTOUR 0 z CL ((( i III 1 I 41 6 1 �� I N (TYP) ' Q + LLr U 1111 1 40 -- I�I I MULCH I I�11 f Q EX TOPO z CONTOUR \ I I 1 I I I I PR PER / \ �9 ; will (TYP) 1111 II X �� INLET -- 3g ' • ��o N IIII II MULCH O a 1 I I I N PROPOSED sAs xas M O I tl� �l I ----- N I RAIN f S I J 0 U EX PROPERTY GARDEN 8 \ w BOUNDARY/ROW BARK PARK • U Z_ g I IIII a —o Muu LIMITS OF DISTURBANCEco L o s IIIII �� �' ( . �. �s III + Mules \ a o 00 cn I � Ec BUILDING 3 } BUILDING 1` SOS r PROP 10' / =17 U; _ E III SF S TYPE R ♦ I 'COO, a I INLET 'S� �• o ` a' II I I Tj I B U I L D I N G 2 � - I �� I EX PROPERTY .• �` •:��t,� LIMITS OF DISTURBANCE I I a Q p ..•••••..•••G \\\� NsrALLourLEr 'I I BOUNDARY/ROW \ \� GRAVEL FILTER - fJ l • INSTALL OUTLET G ch I • �"� SF O `� \\ p S GRAVEL FILTER IP ^ \ NIAIL1\\\���\\\ IP o iM + � —G — - NAG C350 �� 4- °' STREET CUT NOTE: r _ �NAGC350— G NA C350 = (IO�x70.) TL 39 LIMITS OF STREET CUT ARE APPROXIMATE. FINAL PROJECT NO: $01 OO4 — — — — — i 4 - SF -SF SF SF— SF SF SF SF SF — SF - LIMITS ARE TO BE DETERMINED IN THE FIELD BY DATE: MARCH 12,2025 THE CITY ENGINEERING INSPECTOR. ALL REPAIRS IF EX PROPERTY PROP CDOT PROP CDOT BOUNDARY/ROW TYPE D INLET LIMITS OF a ARE TO BE IN ACCORDANCE WITH THE CITY SHEET No: EC-022 TYPE D INLET DISTURBANCE \ STREET REPAIR STANDARDS. a I I LIMITS OF DISTURBANCE � DON ELLA DRIVE i II I \I �\ 2 OF 5 a 7 1 7. CALL UTILITY NOTIFICATION CENTER OF COLORADO ,45 of 1 -800-922-1987 �w ✓ LIMITS OF DISTURBANCEt 46 LIMITS OF DISTURBANC'E' CALL 2 BUSINESS DAYS IN ADVANCE Ir INTERNATIONAL BLVD. ki7me—Milill'''' —1 BEFORE YOU DIG,GRADE,OR EXCAVATE EX PROPERTY -- HE OHE OHE- AS FOR THE MARKING OF UNDERGROUND W_ BOUNDARY/ROW z--QEIE MEMBER UTILITIES. w _-— - - - - - - ui ;4 - - - - - - - - - - - - - - - - - - - - aw „ _7-- - - - - - - - -- 46 EX PROPERTY y 46 46 BOUNDARY!ROW EX PROPERTY BUILDING 14 BOUNDARY/ROW BUILDING 15 —7 01 60' 120' ,III III / r? /�' LIMITS OF DISTURBANCE LIMITS OF DISTURBANCE BUILDING 13 L U11 I 45 45 > :39- C 45 45 L0 A LOT 4/PHASE 2 14 LOT 3/PHASE 1 > cy li III I 43 43 ANGELA AVENUE 42 MASTERPLAN —4o. -A' PROP CONTOUR NOTES: �I ilil IN 11 - "I (TYP) 44 < R BUILDING 12 1. ALL DISTURBED AREAS ARE TO BE SEEDED AND MULCHED. C"� ti BUILDING C) 2. ALL OFFSITE AREAS DISTURBED DURING CONSTRUCTION ARE TO BE RE-VEGETATED AND RETURNED TO HISTORIC co BUILDING ill CONDITION. STRAW WATTLES OR GRAVEL INLET FILTERS MAY III I I Ilil I BE INSTALLED (IF NECESSARY AND AS REQUIRED) ON co EXISTING, OFFSITE/DOWNSTREAM INLETS. III43 L 4342 41�1 1 3. THE RAIN GARDEN SHALL BE INSTALLED WHERE SHOWN AND Orr MASTERPLAN WILL PROMOTE INFILTRATION, AND ENHANCE WATER QUALITY, PROP CONTOUR (TYP) AS REQUIRED BY THE CITY OF FORT COLLINS. pl EX PROPERTY III I 40 P BOUNDARY/ROW 42 4. SEE SHEET EC-04 & EC-05 FOR EROSION CONTROL NOTES AND Ai Q2DETAILS. <1 <I I \ �� t + 39 CHECKED BY: JRG EX PROPERTY 0+- BOUNDARY/ W • DESIGNED BY: JRG rr TOT) DRAWN BY: JRG LOT I I A I LIMITS OF DISTURBANCE PLAYGROUND II I h. E.H. BARKER ETAL. (PARCEL NO.87084 002 CN 42- 41 BUILDING 8 t r 36- 1-1 A A c j LEGEND Ili lil I lye —35 PROPOSED MAJOR CONTOUR-5 FT INTERVAL w BUILDING 9, BUILDING 7 l i i i l i l i /I N 40 COMMUNITY —36 PROPOSED MINOR CONTOUR 1 FT INTERVAL 0 & z _j Ill =1 I 'numm tD I w 7 BUILDING 5- EXISTING MAJOR CONTOUR-5 FT INTERVAL I I Il il; III cl \A 0 41 ► 0 EXISTING MINOR CONTOUR- 1 FT INTERVAL •i I I I�`II I I 42 _ - - e: I..m 0 42 LIMITS OF DISTURBANCE ===6ia Aid- 0 LIMITS OF DISTURBANCE < pl� PROPOSED DIRECTION OF SURFACE FLOW i i ,�,i I I I IIII ^ + � � � I � O I�. "'I I I Ii I III I / Q) EX TOPO INSTALL NORTH AMERICAN GREEN C350 s BODE BOULEVARD CONTOUR E) (9 j Z INSTALL RIPRAP PROTECTION (TYPE M D5,=12") 0 0 Iro u leo k LIMITS OF DISTURBANCE I IL BUILDING 51 LL u Ld u c�j 0 az MASTERPLAN IIIII PROP CONTOUR oll u (TYP) MASTERPLAN BUILDING 61 4 BUILDING m PROP CONTOUR iii 0 v) 41 (TYP) < U LL :E 0 11111 A 0 0 i'i 1140 o I m< Z c Z 0 m \ I II i III ' � � �,� LL, 71 38 u) 04 NAG 1111 PROPOSED (6.5'x 45') RAIN0 _j GARDEN EX PROPERTY Lj BOUNDARY/ROWc� BARK PARK u z Ld LIMITS OF DISTURBANCE o o oo a- < co ct lclo co 0- 0 nmm c: c :E IIIr'. rr 0 _G .21 BUILDING 3 BUILDING 1 'Zo v1d j I III 1 llc� [MR mw zz am c 44./ zz I I I / EX PROPERTY BUILDING 2 I c� BOUNDARY/ROW oo co N 0 1 L� o 39 _r c STREET CUT NOTE: .4- -4- G NAG C35 - "'.01 NAG C350 (10.x 70') r- 1 1��39� NAG C350 LIMITS OF STREET CUT ARE APPROXIMATE. FINAL PROJECT NO: 801-004 (1 O'x 40') (4.5'x 65') PE 1��F_ 4. 41. LIMITS ARE TO BE DETERMINED IN THE FIELD BY DATE: MARCH 12,2025 flo EX PROPERTY 0 _77 CITY o REPAIRS BOUNDARY/ROW LIMITS OF ARE TO BE IN ACCORDANCE WITH T No: EC-03 SHEET-3 DISTURBANCE STREET REPAIR STANDARDS. I <LIMITS OF DISTURBANCE DONELLA DRIVE A OF 5 STRAW General Erosion Control Requirements Waste Materials Storage and Sanitary Facilities SEEDING CHART 12"O STRAW WATTLE OR ROCK SOCK FILTERS, WATTLE/ROCK 45) Trash,debris,material salvage,and/or recycling areas shall be,where practical,at least fifty(50)feet from any permanent or interim stormwater structures SOCK CHECK These notes are a summary for the legal requirements,that are set forth in the Fort Collins Stormwater Criteria Manual(FCSCM),and that any conflict is resolved EMBEDDED AND STAKED, AS SHOWN, THIS DETAIL, TO or drainage ways and shall be monitored as part of the routine inspections.These facilities should be located out of the wind and covered as able.Where not able to DAM by the more stringent requirement controlling. Table 11.2. Recommended Species and Application Rates of Seeds ENSURE STABILIZATION OF FILTERS. SPACING SHALL BE cover,locating said areas on the side of other structures to reduce exposure to winds,and follow maximum loading guidelines as marked on the container.The s• BASED ON VERTICAL, TOE-TO-HEAD HEIGHT AT 1) The Property Owner,Owner's Representative,Developer,Design Engineer,General Contractor,Sub-contractors,or similar title for the developing entity for Temporary Vegetation and/or Cover Crops. ' ( Developer is required to practice good housekeeping to keep the construction site free of litter,construction debris,and leaking containers. P y g / P � _ INTERVALS WHERE 12" HEIGHT IS EXCEEDED BY SLOPE WOODEN (here after referred to as the Developer)has provided these Erosion Control Materials in accordance with Erosion Control Criteria set forth in the Manual as an *POINT A MUST attempt to identify erosion,sediment,and other potential pollutant sources associated with these Construction Activities and preventing those pollutants from 46) Sanitary facilities shall be prevented from tipping through the use of anchoring to the ground or lashing to a stabilized structure.These facilities shall also be _�, OF CHANNEL). J STAKE p Y P P P g P located as far as practical from an inlet,curb cut,drainage swale or other drainage conveyances to prevent material transport from leaving the local area.This Species Season 1 Drilled Pounds/Acre • STRAW BE HIGHER LL- (TYp leaving the project site as an illicit discharge.Full City requirements and are outlined and clarified in the Manual under Chapter 4:Construction Control Measures WOODEN THAN POINT B ) and should be used to identify and define what is needed on a project. consists of the facility being located,where practical,at least fifty(50)feet from any permanent or interim drainage ways. X L ` , WATTLE STAKE Annual Ryegrass COOT 20 W - 2) The Developer shall make themselves thoroughly familiar with the provisions and the content of the specifications laid out in the Manual,the DevelopmentN . . . , " (TYP) Oats COOT 70 �j . • Agreement,the Erosion Control Materials compiled for this project,and the following notes as all these materials area applicable to this project. Other Site Operations and Potential Spill Areas ■ g p p J g pP p J P P � �� _ * 3) The Developer shall implement and maintain Control Measures for all potential pollutants from the start of land disturbing activities until final stabilization 47 Spills:For those minors ills that;are less than the State's reportable quantity for Ills,stay within the permitted area,and in no way threaten an Cereal Rye COOT 4O • ` _ _ p P P p g ) p P p q Y P� Y P Y Y Wheat - Winter COOT 40 � '�,,..,_._ r• • 1 I-, I- of the construction site. stormwater conveyance,notify the FORT COLLINS STORMWATER CRITERIA MANUAL Appendix F Page 8 City of Fort Collins Utilities by email at erosion@fcgov.com1. �' • I I-1 hJ` o or phone(970)817 4770.For any significant,major,or hazardous spills,notify the City of Fort Collins Utilities by phone only after Emergency Response(911)has Wheat - Spring COOT 60 a< t • I- _I 11- 4) The City Erosion Control Inspector shall be notified at least twenty-four(24)hours prior to the desired start of any construction activities on this site to t -I I ' �'t I- been notified and is on route,County Health Department(LCDHE)has been notified through Larimer County Sheriff Dispatch(970)416-1985,and the State Spill Barley COOT 60 a V ' 11 I�: �,II 1_ allow adequate time for on-site confirmation(initial inspection which can take up to two business days after receiving the request)that the site is in fact protected y • 1, Hotline Incident Reporting have been contacted 1-877-518-5608.Written documentation shall be provided to the City within 5 days of the event.All spills shall be I =t� I from sediment and pollutants discharges off site.Please contact erosion@fcgov.com early to schedule those Initial Erosion Control Inspections well in advance so Millet Warm 30 EMBED =1-111=1 1 3 I A that demolition,clearing, cleaned up immediately. Z WATTLE/ROCK III- grubbing,tree removal,and scraping may begin without delay.Failure to receive an on site confirmation before construction activities Hybrid Sudan Warm 15 T T • SOCK FILTERS '4 commence is an automatic"Notice of Violation"and can result in further enforcement actions. 48) Selection of"plastic welded"erosion control blankets shall not be used in areas that wildlife,such as snakes,are likely to be located as these have proven to Sorghum Warm 1 O LLI 3"TO 5"INTO 5) The Developer shall proactively provide all appropriate Control Measures to prevent damage to adjacent downstream and leeward properties.This includes cause entrapment issues. SOIL SECTION A PLAN VIEW but is not limited to:trees,shrubs,lawns,walks,pavements,roadways,structures,creeks,wetlands,streams,rivers,and utilities that are not designed for removal, Final stabilization and project completion A relocation,or replacement in the course of construction. 49) Any stormwater facilities used as a temporary Control Measure will be restored and storm sewer lines will be cleaned upon completion of the project and Cool season grasses make their major growth in the spring. Warm season grasses GENERAL NOTES: make their major growth in late spring and summer. Table 11.4 identifies planting 6) At all times the Developer shall be responsible to ensure adequate Control Measures are designed,selected,installed,maintain,repaired,replaced,and before turning the maintenance over to the Owner,Homeowners Association(HOA),or other party responsible for long term maintenance of those facility. � g P 9 P g � FOOT-COMPACTED 1. INSPECT, REPAIR, AND REPLACE (IF NECESSARY) THE ultimately removed in order to prevent and control erosion suspension,sediment transportation,and pollutant discharge as a result of construction activities dates for perennial and temporary/cover crop grasses. Q FLOW FILTERS AFTER EACH STORM EVENT. 50) All final stabilization specifications shall be done in accordance with the Manual,Chapter 4:Construction Control Measures. BACKFILL associated with this project. w 51) All disturbed areas designed to be vegetated shall be amended,seeded&mulched,or landscaped as specified in the landscape plans within 14 working days > 2. ALL STRAW WATTLE FILTERS MUST BE REPLACED AFTER 7) All applicable Control Measures based upon the sequencing and/or phasing of the project shall be installed prior to those construction activities O ,I _ _ of final grading. Table 11.4. Planting Dates for Perennial and Temporary/Cover Crop Grasses. Ix 12" - - ,T I=1 I 1=1 I 1 12 MONTHS UNLESS APPROVAL IS GRANTED BY THE commencing. P. _ =1 1=I" ENGINEERING DIVISION FOR LONGER USE. 52 Soil in all vegetated(landscaped or seeded)areas,including parkways and medians shall comply with all requirements set forth in Sections 12-130 through a =I i - 8) As dynamic conditions(due to the nature,timing,sequence,and phasing of construction)in the field may warrant Control Measures in addition,or different, 12 132 of the City Municipal Code,as well as Section 3.8.21 for the City Land Use Code. -I I-III=III- to what is shown on these plans,the Developer shall at all times be responsible to implement the Control Measures that are most effective with the current state DATE PERENNIAL TEMPORARY/COVER -1II 3. PLEASE REFER TO FOLLOWING NRCS WEBSITE FOR - � ��- and progress of construction.The Developer shall implement whatever measures are determined necessary,and/or as directed by the City Erosion Control GRASSES CROP GRASSES � ADDITIONAL WATTLE INFORMATION AND INSTALLATION 53) All seeding shall refer to landscaping plans for species mixture and application rates and depths requirements. Q NOTES AND DETAILS: www.herefordnrcd.com/Straw Wattles. df Inspector.The Developer shall insure that all Erosion Control Plans(Maps)or SWMP documents are updated to reflect the current site conditions,with updates PROFILE VIEW - P being initialed and dated.These site inspections and site condition updates shall be made available upon request by the City. 54) All seed shall be drilled where practical to a depth based upon the seed type.Broadcast seeding shall be applied at double the rate as prescribed for drill Warm Cool Warm COOT w EMBED 9) All listings,provisions,materials,procedures,activities,site work and the like articulated in this or other written site-specific documents(Including but not seeding and shall be lightly hand raked after application.Hydroseeding may be substituted for drill seeding on slopes steeper than 3(H):1(V)or on other areas not 14 WATTLE/ROCK limited to the erosion control reports,development agreements,landscape,and drainage materials shall meet or exceed the most restrictive language for Cit , practical to drill seed and crimp and mulch.All hydroseeding must be conducted as two separate processes of seeding and tackification. rw » p p g p g ) Y Jan 01 - 28 Yes Yes No No x SOCK 3"TO 5" 12 DIAMETER STRAW WATTLE County,State,and Federal regulations with regards to erosion,sediment,pollutant,and other pollution source Control Measures.The Developer shall be 55) All seeded areas must be mulched within twenty-four(24)after planting.All mulch shall be mechanically crimped and or adequately applied tackifier.The use Mar 01 - Febe 15 Yes Yes NO Yes INTO SOIL responsible to comply with all of these aforementioned laws and regulations. of crimped mulch or tackifier may require multiple re-applications if not properly installed or have weathered or degraded before vegetation has been established. y W OR ROCK SOCK CHECK DAM May 16 - May 31 Yes No Yes No � 10) The Developer shall ensure that all appropriate permits(CDPS General Permit Stormwater Discharges Associated with Construction Activity,Dewatering, Areas of embankments having slopes greater than or equal to 3H:1V shall be stabilized with an erosion mat or approved equal to ensure seed will be able to germinate on the steep slopes.During a season when seeding does FORT COLLINS STORMWATER CRITERIA MANUAL Appendix F Page 9 not produce vegetative Jun 01 - Jul 31 No No Yes No Clean Water Act,Army Corps of Engineers'404 Wetlands Mitigation Permit,etc.)have been attained prior to the relevant activity has begun.These permits or I� CURB INLET copies shall be made available upon request by the City. cover,another temporary erosion control shall be implemented along with,or until,temporary seeding or permanent erosion control can be performed. Aug 01 - Aug 31 No Yes NO Yes 11) The Developer shall furnish all conveniences and assistances to aid the Erosion Control Inspectors of materials,workmanship,records,and self-inspections, 56) The Developer shall warranty and maintain all vegetative measures for two growing seasons after installation or until seventy percent(70%)vegetative cover Sep 01 - Sep 30 NO No No Yes 0 etc.of the Control Measures involved in the construction activities. has been established,whichever is longer and meets all the Criteria outlined in the Fort Collins Stormwater Criteria Manual Chapter 4:Construction Control Oct 01 - Dec 31 Yes Yes NO No Measures. Z 12 The Developer shall request clarification of all apparent site construction issues that may arise due to inconsistencies in construction Tans for the site or site P q PP v P Mulchingshall be used to assist in establishment of va etation. One or more of the o 57) The Developer shall maintain,monitor,repair,and replace any and all applicable Control Measures until final stabilization has been obtained.All Control g conditions around the selected Control Measures by contacting the Erosion Control Inspector.The Erosion Control Inspector will not be responsible for any to GRAVEL FILTER � explanations,interpretations,or supplementary data provided by others. Measures must remain until such time as all upstream contributing pollutant sources have been vegetated or removed from the site.When any Control Measure is following mulches shall be used With a perennial dryland grass seed mixture, or a �, removed,the Developer shall be responsible for the cleanup and removal of all sediment and debris from that Control Measure.At the point at which the site has temporary vegetation or cover crop. w (APPROX. 3/4 DIA.) 13) All Control Measures shall be installed in accordance with the Manual. been deemed stabilized and verified by City Erosion Control Inspector,all temporary Control Measures can then be fully removed.All measures shall be removed 41 w J I 14) The City reserves the right to require additional Control Measures as site conditions warrant,to the extent authorized by relevant legal authority. within 30 days after final stabilization is achieved. O WIRE SCREEN WNCRETE Mulch Application Rate 0 15) As with any construction standards,occasions may arise where the minimum erosion control standards are either inappropriate or cannot be justified.In 58) The responsible party shall maintain and keep current all payments or related forms of security for the Erosion Control Escrow until 1)stabilization has been Acceptable Dates Of use p A BLOCK these cases,a variance to these standards may be applied for pursuant to the terms,conditions,and procedures of the Manual. reached and 2)all Control Measures and/or BMPs have sediment materials collected and the Control Measure removed from the site.At that time the site will be P- (APPROX. 1/2 MESH) considered completed and any remaining Erosion Control Escrow shall be returned to the appropriate parties. Straw or Hay Jan 01 - Dec 31 1 1/2-2 tons/acre a, A 16) Inspection.The contractor shall inspect site pollutant sources and implement Control Measures at a minimum of once every two weeks during construction Hydraulic (wood or paper) Mar 15 - May 15 1 1/2-2 ton s/acre ;� and within 24 hours following a precipitation event.Documentation of each inspection shall be recorded and retained by the contractor. Erosion control mats Or blankets Jan 01 - Dec 31 Not applicable ICable `n 0//- 2"x4" WOOD STUD ( ) PP w OVERFLOW 17) All temporary Control Measures shall be cleaned,repaired,or reconstructed as necessary in order to assure continual performance of their intended CLASSIFICATION AND GRADATION OF ORDINARY R I P R A P FILTERED WATER function.All retained sediments,particularly those on paved roadway surfaces,shall be removed and disposed of in a manner and location so as not to cause their Hay or Straw mulch Shall be free of noxious weeds and at least 50% of the fiber Shall RUNOFF release into any drainage way. -� - - RIPRAP � OF TOTAL WEIGHT SMALLER STONE SIZE d be 10 inches or more in length. When seeding with native grasses hay from a native zlz _ _ 18) Any Control Measure may be substituted for another standard Control Measure so long as that Control Measure is equal to,or of greater protection than 50* _ _ _-� DESIGNATION THAN THE GIVEN SIZE (IN POUNDS) (INCHES) grass is a suggested mulching material, if available. W a a a a a a a - - III-III- the original Control Measure that was to be used in that location.(ex.silt fence,for wattles,or for compact berms)Wattle alone on commercial construction sites 1 -1 have shown to be an ineffective substitute for silt fence or compact berms unless it is accompanied b a construction fence to prevent vehicle traffic. CLASS 6** 70 - 100 85 � M . ''=III=11 ,,,III II III= p p Y If irrigation is used, hydraulic mulches may be applied from March 15 through Sep 30. -I 1 I _ CURB INLET 19) Any implementation or replacement of existing Control Measures for a non-standard control,or alternative Control Measure,shall require the review and 50 - 70 35 a WIRE SCREEN - I I I I'- acceptance by the City erosion control staff before the measure will be allowed to be used on this project.These Control Measures'details shall be submitted, 2� _ i O 01 6 Hay Or Straw Mulch CHECKED BY: JRG GRAVEL FILTER reviewed and accepted to be in accordance with the Erosion Control Criteria based upon the functionality and effectiveness in accordance with sound engineering 2„x4„ WOOD STUD and hydrological practices CLASS 12 70 - 100 440 WIRE SCREEN 1. Hay or straw mulch will be anchored to the soil by one of Land disturbance,Stockpiles,and Storage of Soils 50 - 70 275 DESIGNED BY: JRG 25 - 50 PLAN VIEW SECTION s5 12 the following methods:/� 20) There shall be no earth-disturbing activity outside the limits designated on the accepted plans.Off road staging areas or stockpiles must be preapproved by 3 the City.Disturbances beyond these limits will be restored to original condition.GENERAL NOTES: A CLASS 18 100 1275 (a) A crimper P which will crimp the fiber four inches or DRAWN BY: JRG 1. INSPECT AND REPAIR FILTERS AFTER EACH STORM EVENT. 21) Pre-disturbance vegetation shall be identified,protected,and retained wherever possible.Removal or disturbance of existing vegetation shall be limited to 50 - 70 655 more Into the SOII. At least 50% of the fiber the area required for immediate construction operations,and for the shortest practical period of time.This should include sequencing and phasing construction REMOVE SEDIMENT WHEN ONE HALF OF THE FILTER DEPTH activities in a way so that the soil is not exposed for long periods of time by schedule or limit grading to small areas.This should also include when practical 25 - 50 275 18 Shall be 10 inches Or more in length. HAS BEEN FILLED. REMOVED SEDIMENT SHALL BE DEPOSITED 10 advancing the schedule on stabilization activities such that landscaping takes place shortly if not immediately after grading has occurred.Vegetation efforts shall IN AN AREA TRIBUTARY TO A SEDIMENT BASIN OR OTHER start as soon as possible to return the site to a stabilized condition.Sensitive areas should avoid clearing and grading activities as much possible. CLASS 24 150 - 70 (b) Manufactured mulch netting installed over the hay 1700 FILTERING MEASURE. 22) All exposed soils or disturbed areas are considered a potential pollutant and shall have Control Measures implemented on the site to prevent materials from 25 - 50 6 0 24 or Straw according to manufacturers instructions. leaving the site. 35 2. SEDIMENT AND GRAVEL SHALL BE IMMEDIATELY REMOVED 23) All soils exposed during land disturbing activity(stripping,grading,utility installations,stockpiling,filling,etc.)shall be kept in a roughened condition at all (C) Tackifiers sprayed On the mulch to the FROM TRAVELED WAY OF ROADS. times by equipment tracking,scarifying or disking the surface on a contour with a 2 to 4 inch minimum variation in soil surface until mulch,vegetation,and/or * d5o = MEAN PARTICLE SIZE. AT LEAST 50 PERCENT OF THE MASS SHALL BE STONES EQUAL TO OR LARGER THAN manufacturer's recommendation. other permanent erosion control is installed. THIS DIMENSION. 2. All straw or hay must be free of noxious weeds. EROSION CONTROL CURB INLET GRAVEL FILTER 24) No soil stockpile shall exceed ten(10)feet in height.All soil stockpiles shall be protected from sediment transport through the use of surface roughening, ** BURY ON 4 TO 1 SIDE SLOPES OR GROUT ROCK IF SLOPES ARE STEEPER. of watering,and down gradient perimeter controls.All soil stockpiles shall be protected from sediment transport by wind in accordance with Municipal Code§12-150. N D P ES PERMIT NOTES w All stockpiles shall be flattened to meet grade or removed from site as soon as practical,and no later than the completion of construction activities or abandonment of the project.All off-site stockpile storage locations in City limits shall have a stockpile permit from the City Engineering Department prior to using 1. SITE DESCRIPTION: Vl PIPE/CULVERT PROTECTION _TOE OF FILL the area to store material.If frequent access from hardscape to the stockpile is needed a structural tracking Control Measure shall be implemented. VJ a. Onsite construction which consists of demolition, grading, utility work, parking lot, drive aisles, and i 25) All required Control Measures shall be installed prior to any land disturbing activity(stockpiling,stripping,grading,etc.).All of the required erosion Control building construction. wi ENTRENCHED Measures must be installed at the a 10'max ° ° OVERFLOW-----,,,, CSTRAW WATTLES appropriate time in the construction sequence as indicated in the approved project schedule,construction plans,and erosion \ control report. WOOD srAKrs b. The major activities are planned in the following sequence: 26) All inlets,curb-cuts,culverts,and other storm sewer infrastructure which could be potentially impacted by construction activities shall be protected with WOOD POSTS i RUNOFF 1. Clearing and grubbing necessary for perimeter controls r O� R Control Measures.Material accumulated from this Control Measure shall be promptly removed and in cases where the protection has failed,the pipes shall be SILT FENCE FABRIC ANCHORED IN 13 i4 : thoroughly cleaned out. TRENCH AND ATTACHED TO POST. 2• Installation of perimeter controls i,i 3. Demolition of existing asphalt, concrete, structures, and site items, as applicable A ° 27) All streams,stream corridors,buffers,woodlands,wetlands,or other sensitive areas shall be protected from impact by any construction activity through the 4. GradingOf site FLOW � FLOW� ULVERf use of Control Measures. / FILTER® 24"min 5. Utility construction to serve site IIIIIIIIIIIIIIIIIIIIIIIII 0WATER 28) All exposed dirt shall have perimeter control.Any perimeter controls that drain off or has the ability to be tracked onto the nearby hardscape shall have 6. Parking Lot Construction and Building Construction�.. some form of effective sediment control as the,or as part of the,perimeter control. 0 7. Stabilization, including seeding ° o r• - .„ •.,r 29) All exposed slopes should be protected.All exposed steep slopes(Steeper than 3:1 H:V)shall be protected from erosion and sediment transport through use 8. Removal Of sediment & erosion control measures Vi z.j..•.�'-•�..s •. of Control Measures. / f1/ i_i ° DROP INLET 30) No soils shall remain exposed by land disturbing activity for more than thirty(30)days after activity has ceased before required temporary seeding or C. The site contains approximately 16.36 acres. The entire site IS expected to undergo clearing Q w L permanent erosion control(e.g.seed/mulch,landscaping,etc.)is installed.This is not just limited to projects that are abandoned;this includes any project that is r END WATTLES TO BE and/or grading. 0JKEYED INTO FILL SLOPE. SECTION A-A temporarily halted and no immediate activity is to resume within the next thirty(30)days,unless otherwise approved by the City Erosion Control Inspector.During O O STRAW WATTLES OR a season when seeding does not produce vegetative cover,another temporary erosion control shall be implemented with or until temporary seeding or permanent „ „ GRAVEL FILTERS erosion control can be performed. Cl. Rational C = 0.25 before construction, Rational C = 0.69 after construction. The dominate V(1-1/2D N GRAVECHICKS soils on site have a K factor ranging from 0.17 to 0.32, and a rating of 4L and 5 in the Wind WRAPPED IN CHICKEN STRAW WATTLES ARE TO BE: (1) ENTRENCHED INTO THE SOIL, 31) All individual lots shall have effective sediment controls located on the street side and any down gradient side.Typically most lots drain to the front yet on WOOD POST WIRE) TIGHTLY ABUTTING WITH NO GAPS; (2) STAKED THROUGH THE Erodibility Index per the USDA Soil Properties. The existing site slopes approximately 0.4% to i CENTER OF THE WATTLE PER THE DETAILS SHOWN ON THIS those cases where houses are along a pond or drainage Swale have the lot drain in a different direction than the street,those individual lots will need protection on I.� SHEET; (3) BACKFILLED (FOOT-COMPACTED)AROUND THE that down gradient side to prevent sediment from leaving the lot.See the Individual Lot Details for further clarification. COMPACTED BACKFILL 2.1%. The new improvements will be subjected to both wind and rainfall erosion. Z O ENTIRE OUTSIDE PERIMETER. j Vehicle Tracking I" z / -SILT FENCE FABRIC ANCHORED IN e. The predevelopment property for the site Consists of fallow agricultural land. Please refer to theJ J W A A 32) At all points where vehicles exit or leave the exposed dirt area on to a hardscape or semi hardscape(concrete,asphalt,road base,etc.)shall have installed at jj TRENCH AND ATTACHED TO POST. 1 z least one structural tracking Control Measure to prevent vehicle tracking.All areas not protected b an adequate perimeter control shall be considered a point SWMP (under separate COVer) for details. J INLET PROTECTION g P g' P v a P P 24"min / O I..I wwhere vehicles exit the site.Access points should be limited to as few entrances as possible(All perimeter areas shall be protected from tracking activities). j w 33 In all areas that the structural tracking Control Measures fail to prevent vehicle tracking,collection and proper disposal of that material is required.All inlets �-��-RUNOFF f. Anticipated pollution SOUfC2S W111 be discussed In the SWMP, provided under separate cover and LL U g p g p p p q .2 min prior to construction. There will be no vehicle storage or cleaning on site. There will be no (n located near access points and affected by tracking activities shall be prevented from the introduction of sediment into the drainage system. �.. O QX chemical storage on site. = DROP INLET--,,- 34) City Municipal Code§20 62,among other things,prohibits the tracking,dropping,or depositing of soils or any other material onto city streets by or from any i ` o o source.City Municipal Code,§26-498,among other things,prohibits the discharge of pollutants on public or private property if there is a significant potential for 6"x6"TRENCH O V 0 migration of such pollutant.Therefore,all tracked or deposited materials(intentional or inadvertent)are not permitted to remain on the street or gutter and shall 18"min g. There may be anticipated non-stormwater components of discharge. ri,, z be removed and legally disposed of by the Developer in a timely and immediate manner.Dirt ramps installed in the curb-lines are not exempt to these sections ofX LL Z h. The downstream receivin 0 WOOD STAKES code and shall not be permitted in the street right of way(public or private). g water is the Cache La Poudre River. Storm water runoff from the PLAN VIEW d d dditi f th th Cit majority of the site will be conveyed to the on-site rain garden and the three existing offsite 0 a 35) If repeateeposit of material occurs on a site,additional structural tracking controls may be required of Developer by e y Erosion Control n MAINTENANCE NOTES: Inspector.Loading and Unloading operations water quality and detention ponds via overland sheet flow, swales/channels, curb and gutter, inlets, 0 N and storm sewerpipe. r^ 0 1. INSTALL STRAW WATTLES IN ACCORDANCE WITH NRCS GUIDELINES (www.herefordnrcd.com/straw_Wattles.pdf)AND PER DETAILS 36) The Developer shall apply Control Measure to limit traffic(site worker or public)impacts and proactively locate material delivered to the site in close INSTALLATION: Vl AND INSTALLATION INSTRUCTIONS CALLED FOR ON THIS SHEET. proximity to the work area or immediately incorporated in the construction to limit operational impacts to disturbed areas,vehicle tracking,and sediment DRIVE POSTS VERTICALLY INTO THE GROUND TO A MINIMUM DEPTH OF 18% AND O EXCAVATE A TRENCH APPROXIMATELY 6" WIDE AND 6" DEEP ALONG THE LINE 2, SITE MAP: 0 N 2.IF GRAVEL INLET FILTERS ARE USED,REFER TO"CURB INLET GRAVEL FILTER"DETAIL,THIS SHEET, deposition that could impact water quality. OF POSTS AND UPSLOPE FROM THE BARRIER. NOT LESS THAN THE BOTTOM 1' OF o THE FILTER FABRIC SHALL BE BURIED INTO THIS TRENCH. a. See Drainage & Erosion Control Plan. 3. STORM DRAIN INLET PROTECTION STRUCTURES SHALL BE INSPECTED PERIODICALLY AND AFTER EACH RAIN EVENT,AND Outdoor Storage or Construction Site Materials,Building Materials,Fertilizers,and Chemicals 11 REPAIRED WHEN NECESSARY. ACCUMULATED SEDIMENT SHALL BE REMOVED. SILT FENCE J 0� i=r 14 37) Any materials of a non-polluting nature(steel,rock,brick,lumber,etc.)shall be inspected for any residue coming off the material during routine inspection 4. STORM DRAIN INLET PROTECTION STRUCTURES SHALL BE REMOVED AFTER THEY HAVE SERVED THEIR PURPOSE. and will generally be located where practical at least fifty(50)feet from any permanent Or interim drainage ways. 3. BMP S FOR STORMWATER POLLUTION PREVENTION: w Z 38) Any high environmental impact pollutant materials that have a high likelihood to result in discharge when in contact with stormwater(lubricants,fuels, 3.1 a. Erosion and Sediment Controls: See Erosion Control Notes and Sequence Table (this sheet). O 00 LO STRAW WATTLE OR GRAVEL FILTER FOR PIPES, b. Materials Handling and Spill Prevention: Measures should be undertaken to control construction d 1 paints,solvents,detergents,fertilizers,chemical sprays,bags of cement mix,etc.)should not be kept on site where practical.When not practical,they should be NOTES: W INLETS, & STRUCTURES WITHIN SOIL AREAS stored inside(vehicle,trailer,connex,building,etc.)and out of contact with stormwater or stormwater runoff.Where not available,they shall be stored outside in materials and Waste, and disposal of excess concrete (if applicable) to ensure this and other lu I a raised(high spots or on pallets),covered(plastic or tarped),and sealed(leak proof container)in secondary containment location.The secondary containment or 1. VEHICLE TRACKING MAT SHALL BE LOCATED materials do not leave the Site and enter the on-site rain garden and existing offsite detention 0 0 other Control Measure shall be adequately sized,located,where practical,at least fifty(50)feet from any permanent or interim stormwater structures or drainage AT EVERY ENTRANCE/EXIT TO THE CONSTRUCTION SITE. ponds, Which eventually outlet to the Cache La Poudre River. Concrete, building materials, Waste, 'J \�\ SLOPE �\ ways and shall be monitored as part of the routine inspections. 2. VEHICLE TRACKING MAT SHALL BE MAINTAINED and cleanup by-products should not be discharged into the on-site storm sewer system nor �i\ �/�//,1 Vehicle and equipment maintenance and fueling AS NEEDED TO PREVENT ANY MATERIAL FROM BEING should they enter the proposed rain garden or offsite detention ponds. In the event of a spill U Z_ 0 \��% //\\� 39) Parkin refueling,and maintenance of vehicles and equipment should be limited in one area of the site to minimize possible spills and fuel storage areas. TRACKED ONTO CITY STREET. from the site into the storm sewer system Or the existing offsite detention ponds, appropriate W o g, g, P p g G \ \\ This area shall be located,where practical,at least fifty(50)feet from any permanent or interim stormwater structures or drainage ways and shall be monitored as measures should be undertaken immediately to remove the spilled materials and prevent future 0 Q i ° \ \ \• 1•5D part of the routine inspections.All areas shall keep spill kits and supplies close. P,G- Spills from occurring. ct � i 2.OD ,\ F 3. SEDIMENT AND OTHER MATERIAL SPILLED, DROPPED 0 0 �51 \��\\j \�\\�\\,�\\�\\�\\�\\��\\/�\\��` Significant Dust or Particulate generating Process Svc OR TRACKED ONTO CITY STREET SHALL BE IMMEDIATELY P�� O REMOVED. 4. FINAL STABILIZATION AND LONG-TERM STORMWATER MANAGEMENT: 0 40) The property must be actively preventing the emission of fugitive dust at all times during construction and vegetation activities.All land disturbing activities \N pP � a. See Erosion Control Notes this sheet for final stabilization measures to control pollutants in \\\IUIIIIIIm/, A o that result in fugitive dust shall be in accordance with Municipal Code§12-150 to reduce the impacts to adjacent properties and community health.All required O p Storm water discharges. o```�P�O RE(;� i practices shall be implemented and additional ones shall be followed.These practices include watering the sites and discontinuing construction activities until the Q� p g `��� .21 D = d50 = STATE CLASSIFICATION FOR NOMINAL wind subsides as determined by any City Inspectors. S�. \,,`-',.•••'R �'. iSTONE SITE. Concrete truck/equipment washing,including the concrete truck chute and associated fixtures and equipment p o oQ �1/N 5. OTHER CONTROLS: •,••ort` •o'. o a. Measures should be undertaken to remove excess waste products from the site and dispose of _cU . c , " 41) All concrete and equipment washing shall use structural Control Measures appropriate to the volume of wash and frequency of use.These Control Measures Q o = ` S = E ALL EDGES WILL BE 'TOED INTO ABOVE DIMENSION. these waste materials off-site in an appropriate manner. In addition, measures should be _ , shall be located,where practical,at least fifty(50)feet from any permanent or interim stormwater structures or drainage ways and shall be monitored as part of � ZZ a the routine inspections.These areas shall be clearly identified and protected from any wash from leaving the Control Measure.If frequent FORT COLLINS undertaken t0 limit off-site SOII tracking of mud and debris spillage from vehicles leaving the = :V O o;ZZ anon-protectedL J <vZZ IF RIP-RAP TO BE GROUTED: STORMWATER CRITERIA MANUAL Appendix F Page 7 access from hardscape to the Control Measure is to occur,a structural tracking Control Measure shall be site. Mud and debris should not be tracked along roadways and allowed to enter �` lo GROUT SHALL BE IN ACCORDANCE TO implemented. frequently cleaned out. drainage ways which discharge eventually into the Cache La Poudre River. Q •• \ • �. P q Y p •....•..••• Cj D ASTM:C1107-LATEST REVISION. ON 42) The Developer is responsible for ensuring washing activity is taking place at the appropriate Control Measure and site workers are not washing or dumping 1 1 2" - 3" ROCK 1 2" - 3 4" O 0 GROUT SHALL BE VIBRATED IN PLACE. wash water on to the dirt or other uncontrolled locations. ��� 6. INSPECTION AND MAINTENANCE: //���0/11111111110\�\\` TOPS OF EXPOSED RIP-RAP WILL BE FILTER LAYER TO MITIGATE FABRIC �av a. Inspection and maintenance should be undertaken on a regular basis as outlined in Section 6 of Dedicated Asphalt and concrete batch plants UNDERLAYMENT TO MITIGATE ROCK S� P 9 WET BRUSHED AND CLEANED OF GROUT BEING COMPACTED INTO SUB-GRADE P the Terms and Conditions of the CDPS General Permit. TO EXPOSE RIP-RAP COLOR. 43) Dedicated asphalt and concrete batch plants are not acceptable on construction sites within the City of Fort Collins without an expressed written request 9" MIN. PROJECT NO: 801-004 0 and plan to reduce pollutants associated with that type of activity and approval by the City of Fort Collins specifically the Erosion Control Inspector.The Developer DATE: MARCH 1 2,2025 fl shall inform the erosion control inspection staff of any dedicated asphalt,or concrete batch plants that is to be used on site. o Concrete Saw Cutting Materials VEHICLE TRACKING MAT RIP RAP DRAWING 44) Saw cutting material shall be in accordance with Municipal Code§12-150 for air emissions and all water applications to the saw cutting shall prevent SHEET NO: EC"04 a material from leaving the immediate site and collected.These cutting locations,once dried,shall be swept and scraped of all material and shall have proper and i legal disposal. 4 OF 5 a 12"(30cm) CHANNEL TEMPORARY EROSION CONTROL FABRIC TO BE PLACED AT CURB CUT OUTLET 4"(10cm) INSTALLATION POINTS TO LID BASIN AND OTHER +� RIPRAP LOCATIONS (SEE EROSION { -rr r• DETAIL Vehicle Tracking Control (VTC) SM-4 CONTROL PLAN FOR RIPRAP LOCATIONS 6n --��� __ Concrete Washout Area (CWA) MM-1 AND ALSO OTHER EROSION CONTROL III-I I - I I III III 6" III------III (15cm) 4" lOcm FABRIC PLACEMENT LOCATIONS) (15cm) ( ) 1.Prepare soil before installing rolled erosion control products (RECPs), 1 6" TOPSOIL. • including any necessary application of W L L • ` lime,fertilizer,and seed. VTC n ' 2.Begin at the top of the channel by CONCRETE WASHOUTORE n _ w ,' • anchoring the RECPs in a 6"(15cm) A SIGN �"� s 6" deep X 6"(15cm) wide trench with C W /� RIPRAP VARIES „ (15em) approximately 12"(30cm) of RECPs V V/l (W FOOT (SEE UTILITY -- • 2"-5" y p ' LESS IF CONSr. PLAN SHEET) • extended beyond the up-slope portion _ ( �` '• t of the trench. Use ShoreMax mat at the WIDTH CAN BE r` � �'�''` • VEHICLES ARE a ` • ' a / (5-12.5em) channel/culvert outlet as supplemental 3:1 i 4' MIN. PHYSICALLY � � �I ■ scour protection as needed. Anchor the CONFINED ON Z • RECPs with a row of staples/stakes BOTH SIDES) T_T • „ 1�r approximately 12"(30cm) apart in the SIDEWALK OR OTHER 50 FOOT (MIN.) w 411-6 ` VEHICLE TRACKING PAVED SURFACE _ _ bottom of the trench. Backfill and (10-15em) _ _ _ compact the trench after stapling.Apply 3:1 8 X 8 MIN. 3 1 CONTROL (SEE W r 1+ � =1 I-I I III III=1 P P 9. PP Y j j r j 1��� seed to the compacted soil and fold the VTC DETAIL) OR t w{ > .'p ' 1' OF TYPE II ti -t r-Y Y -y `y a-7 v e r.7a ri'r Y:Y.;r. '.s. 's © remaining 12"(30cm) portion of RECPs OTHER STABLE , i > (COOT CLASS A) �. � y w P-q p y-w r w w w ,�,_t back over the seed and compacted soil. SURFACE _ _ t w BEDDING MATERIAL � Secure RECPs over compacted soil with a row of staples/stakes spaced ;. approximately P 3:1 � - 9" MIN. ' � . s' > _ a roximatel 12" apart across the r s W width of the RECPs. * ( ) .e 0 3.Roll center RECPs in direction of water 1 flow in bottom of channel. RECPs will I 25 MIN. I P unroll with appropriate side against the r- -1 PUBLIC UNLESS OTHERWISE SPECIFIED 1111•. r soil surface. All RECPs must be ROADWAY 1 8Y LOCAL JURISDICTION, USE securely fastened to soil surface by CONCRETE WASHOUT AREA PLAN COARSE SECT.AGGREGATE AORHT" {/3 - placing staples/stakes in appropriate 12" TYP• MINUS ROCK RIPRAP OR s" RIPRAP DETAIL Q COMPACTED BERM AROUND locations as shown in the staple pattern NTS W THE PERIMETER c� I guide. >4 NON-WOVEN GEOTExTILE FABRIC _-I I I-1 1 4.Place consecutive RECPs end-over-end 1� 2% SLOPE BETWEEN SOIL AND ROCK W 6„ I I I=1 I - 11 III I I =111=_ _-111-1 I I-111 (Shingle style)with a 4"-6"overlap. Use R; a double row of staples staggered 4" �I (15cm) r1 -_ - I-III-III-III-I I3' MIN. UNLESS OTHERWISE SPECIFIED BY LOCAL 11-11 II-III- _ _ _ _ apart and 4" on center to secure 1L -�1 SLOPE / -111-111-111-111 'J -111-111-111-111-111 RECPs. UNDISTURBED OR >3 >3 INSTALL ROCK FLUSH WITH JURISDICTION, USE COOT SECT. /J703, AASHTO OR BELOW TOP OF PAVEMENT (�3 COARSE AGGREGATE //\ �����• F' ® - - - - - - - - - - - - - - - 5.Full length edge of RECPs at top of side COMPACTED SOIL VEHICLE TRACKING 9" (MIN.) \// slopes must be anchored with a row of 8 X 8 MIN. OR 5" MINUS ROCK _ L CONTROL (SEE VTC staples/stakes approximately 12"(30cm) - ( - T 2 OD apart in a 6" 15cm deepX 6" 15cm DETAIL `�` „•ter _ i wide trench. Backfill and compactthe SECTION A ) /Sig / CRITICAL POINTS NOTES: trench after stapling. `� \ �i A.Overlaps and Seams P g NON-WOVEN GEOTEXTILE P *Horizontal staple spacing should be 6.Adjacent RECPs must be overlapped FABRIC O B. Projected Water Line altered if necessary to allow staples to approximately 2"-5" (5-12.5cm) CWA- 1 . CONCRETE WASHOUT AREA COMPACTED SUBGRADE n C. Channel Bottom/Side Slope Vertices (Depending on RECPs type) and SECTION A P secure the critical points along the channel ( P 9 YP ) w stapled. CWA INSTALLATION NOTES A A surface. 7.In high flow channel applications a D d50 STATE CLASSIFICATION FOR NOMINAL C4 B B ** staple check slot is recommended at 30 1. SEE PLAN VIEW FOR: STONE SITE. O C C In loose soil conditions, the use of staple to 40 foot (9 -12m) intervals. Use a -CWA INSTALLATION LOCATION. Z or stake lengths greater than 6"(15cm)may double row of staples staggered O be necessary to properly secure the 4"(10cm)apart and 4"(10cm)on center 2. DO NOT LOCATE AN UNLINED CWA WITHIN 400' OF ANY NATURAL DRAINAGE PATHWAY OR ALL EDGES WILL BE TOED INTO ABOVE DIMENSION. a RECPs. over entire width of the channel. WATERBODY. DO NOT LOCATE WITHIN 1,000' OF ANY WELLS OR DRINKING WATER SOURCES. IF VTC-1 . AGGREGATE VEHICLE TRACKING CONTROL Drawing Not To Scale 24 8.The terminal end of the RECPs must be SITE CONSTRAINTS MAKE THIS INFEASIBLE, OR IF HIGHLY PERMEABLE SOILS EXIST ON SITE, IF RIP-RAP TO BE GROUTED: anchored with a row of staples/stakes THE CWA MUST BE INSTALLED WITH AN IMPERMEABLE LINER (16 MIL MIN. THICKNESS) OR GROUT SHALL BE IN ACCORDANCE TO `nj NORTH Disclaimer: approximately 12" (30cm) apart in a SURFACE STORAGE ALTERNATIVES USING PREFABRICATED CONCRETE WASHOUT DEVICES OR A ASTM:C1107-LATEST REVISION. ra AMERICAN The information resented herein is general design information only. Fors specific applications, 6"(15cm)deep X 6"(15cm)wide trench. p g e y' p pp Backfill and compact the trench after LINED ABOVE GROUND STORAGE ARE SHOULD BE USED. GROUT SHALL BE VIBRATED IN PLACE. GREEN consult an independent professional for further design guidance. stapling. TOPS OF EXPOSED RIP-RAP WILL BE � 5401 St.Wendel-Cynthiana Rd. PH:500-722-2040 3. THE CWA SHALL BE INSTALLED PRIOR TO CONCRETE PLACEMENT ON SITE. a a a a a a a Poseyville,IN 47633 www.nagreen.com Drawn on:5-4-17 November 2010 Urban Drainage and Flood Control District VTC-3 WET BRUSHED AND CLEANED OF GROUT W c� m v ,�., �o (� 4. CWA SHALL INCLUDE A FLAT SUBSURFACE PIT THAT IS AT LEAST 8' BY 8' SLOPES Urban Stone Drainage Criteria Manual Volume 3 TO EXPOSE RIP-RAP COLOR. SLOPE LEADING OUT OF THE SUBSURFACE PIT SHALL BE 3:1 OR FLATTER. THE PIT SHALL BE AT INSTALLATION LEAST 3' DEEP. 12"(30cm) CHECKED BY: JRG DETAIL 5. BERM SURROUNDING SIDES AND BACK OF THE CWA SHALL HAVE MINIMUM HEIGHT OF 1'. RIP RAP DRAWING 6. VEHICLE TRACKING PAD SHALL BE SLOPED 2% TOWARDS THE CWA. DESIGNED BY: JRG -_ 1� 1. Pre are soil before installin rolled 7. SIGNS SHALL BE PLACED AT THE CONSTRUCTION ENTRANCE, AT THE CWA, AND 2"-5'1 �� 6 P g ELSEWHERE AS NECESSARY TO CLEARLY INDICATE THE LOCATION OF THE CWA TO OPERATORS :•i+ro:.;.'• ' _ _ ��� -III erosion control products (RECPs), DRAWN BY: JRG •'•�.'••:�'`�' (5-12.Scm) (l5cm) OF CONCRETE TRUCKS AND PUMP RIGS. I-�I-I 11=•.:;�,.r.•;.:;.•• including any necessary �III11 - application of lime, fertilizer, and 8. USE EXCAVATED MATERIAL FOR PERIMETER BERM CONSTRUCTION. CONCRETE FOREBAYS (FOR LID BASIN) seed. _ - 2 2.Begin at the top of the slope by NOTES: =1 I-I I III 111=1 anchoring the RECPs in a 6" 6"(15cm) deep X 6"(15cm) wide 1.CONCRETE FOREBAYS SHALL BE CONSTRUCTED WITH 6"TALL CURB HEIGHTS AND TO DIMENSIONS SHOWN IN DETAILS BELOW. SEE GRADING PLAN FOR SPOT ELEVATIONS. 4 - (1511 trench with approximately wide 2"NOTCHES SHALL BE FORMED OR CUT OUT OF THE LATERAL CURB FACES OF EACH FOREBAY,AS SHOWN. 3B (30cm)of RECPs extended beyond 2.CONCRETE FOREBAYS SHALL BE 4000 PSI CONCRETE WITH#4 REBAR @ 12"O.C,EACH WAY.#4 BAR SHALL BE BENT 90-FOR VERTICAL CURB SECTION AND TIED TO BOTTOM the up-slope portion of the trench. November 2010 Urban Drainage and Flood Control District CWA-3 SLAB BARS. Anchor the RECPs with a row of Urban Storm Drainage Criteria Manual Volume 3 staples/stakes approximately 12" 3.ALL FOREBAYS SHALL HAVE TYPE M RIPRAP INSTALLED AROUND PERIMETERS OF FOREBAYS TO DIMENSIONS SHOWN IN DETAILS BELOW.SEE RIPRAP DETAIL THIS SHEET. (30cm) apart in the bottom of the trench. Backfill and compact the trench after stapling. Apply seed to the compacted soil and fold the * r remaining 12"(30cm) portion of RECPs back over the seed and % compacted soil. Secure RECPs ` - `-�` -1 I I over compacted soil with a row MM-1 Concrete Washout Area (CWA) =1 I I-1 11=1 " of staples/stakes spaced I I . I I I I-1 I I-III approximately 12"(30cm) apart 111= I=1 I I=1 11=11 across the width of the RECPs. 2" WIDE x 6" TALL NOTCHES IN CONCRETE , CURB (1 NORTHEAST & 1 SOUTHWEST, IN 13.0 I I I=III=1 I I=1 I F9 I I 3.Roll the RECPs (A) down or (B) SIDES OF FOREBAY CURB) 2" WIDE x 6" TALL NOTCHES IN -I - horizontally across the slope. CONCRETE CURB (1 NORTHWEST & 1 "I I-III-III-III-III-I I RECPs will unroll with appropriate SOUTHEAST, IN SIDES OF FOREBAY CURB) I 1-III-III-III-III-III side against the soil surface. All O L III=III=III=III=III=11 RECPs must be securely fastened l� ^ ^ ^ ^ -I 11=111=111=111=111=1 I I to soil surface by placing CWA MAINTENANCE NOTES 3.0 O i,i 3A 11=111E111E111E111EI I I=11 locastap ionstakes in appropriate p p W _ _ _ _ _ locations as shown in the staple 1. INSPECT BMPs EACH WORKDAY, AND MAINTAIN THEM IN EFFECTIVE OPERATING CONDITION. n/ n II1-III-III-III-III=1 I I pattern guide. MAINTENANCE OF BMPs SHOULD BE PROACTIVE, NOT REACTIVE. INSPECT BMPs AS SOON AS 4.0' L1. 1..1 III=III=III=III=III= 4.The edges of parallel RECPs must POSSIBLE (AND ALWAYS WITHIN 24 HOURS) FOLLOWING A STORM THAT CAUSES SURFACE 0 6.0'� 0 i _ be stapled with approximately 2" - EROSION, AND PERFORM NECESSARY MAINTENANCE. p p p p p p J 1J 11=III-III=III=1 p pP y I 0 O 5" (5-12.5cm) overlap depending y- I=III=III- 2. FREQUENT OBSERVATIONS AND MAINTENANCE ARE NECESSARY TO MAINTAIN BMPs IN I 1 _III- on the RECPs type. EFFECTIVE OPERATING CONDITION. INSPECTIONS AND CORRECTIVE MEASURES SHOULD BE U 5.Consecutive RECPs spliced down DOCUMENTED THOROUGHLY. p p p p _ the slope must be end over end 3"(7.5cm) (Shingle style)with an approximate 3. WHERE BMPs HAVE FAILED, REPAIR OR REPLACEMENT SHOULD BE INITIATED UPON .�I 3"(7.5cm) overlap. Staple through DISCOVERY OF THE FAILURE. 10•0' i. z ^- overlapped area, approximately 1 0.' ' -- Z - 12"(30cm) apart across entire 4. THE CWA SHALL BE REPAIRED, CLEANED, OR ENLARGED AS NECESSARY TO MAINTAIN 6,0 '--1 Z -�I I=I I III III=1 RECPs width. CAPACITY FOR CONCRETE WASTE. CONCRETE MATERIALS, ACCUMULATED IN PIT, SHALL BE -.I O 0 REMOVED ONCE THE MATERIALS HAVE REACHED A DEPTH OF 2'. O � 2" WIDE x 6" TALL NOTCHES IN O U z 5 -I�1=�1=�I- p p p p p p CONCRETE CURB (1 NORTHWEST & 1 w Drawing Not To Scale - SOUTHEAST, IN SIDES OF FOREBAY LL V W 5. CONCRETE WASHOUT WATER, WASTED PIECES OF CONCRETE AND ALL OTHER DEBRIS CURB) � *NOTE: IN THE SUBSURFACE PIT SHALL BE TRANSPORTED FROM THE JOB SITE IN A WATER-TIGHT �.., NORTH Disclaimer: In loose soil conditions, the use of O O O CONTAINER AND DISPOSED OF PROPERLY. �I AMERICAN The information presented herein is general design information only. For specific applications, staple or stake lengths greater than ASPEN p ' p p II w O 0 n GREEN consult an independent professional for further design guidance. 6"(15cm) may be necessary to 6. THE CWA SHALL REMAIN IN PLACE UNTIL ALL CONCRETE FOR THE PROJECT IS PLACED. O ►~^ 5401 St.Wendel-Cynthiana Rd. PH:800-772-2040 properly secure the RECPs. I LL Vl o Poseyville,IN 47633 www.nagreen com Drawn on:5-4-17 7. WHEN THE CWA IS REMOVED, COVER THE DISTURBED AREA WITH TOP SOIL, SEED AND I Bf'1 p I O MULCH OR OTHERWISE STABILIZED IN A MANNER APPROVED BY THE LOCAL JURISDICTION. a (DETAIL ADAPTED FROM DOUGLAS COUNTY, COLORADO AND THE CITY OF PARKER, COLORADO, NOT AVAILABLE IN AUTOCAD). n 1 04 "i rfWELPC W&L IE NOTE: MANY JURISDICTIONS HAVE BMP DETAILS THAT VARY FROM UDFCD STANDARD DETAILS. W IC F11 F CE TIGHTLY HALL CONSULT WITH LOCAL JURISDICTIONS AS TO WHICH DETAIL SHOULD BE USED WHEN SCALE: 1" 10' FACE WP SHALL LO rR PLTic a'LPsrREAw DIFFERENCES ARE NOTED. N FRne Tic[ur:r nl�huh�c \ OC14 4'NIN. cum '° ��7J•' 0' 10' 20' L£71GTLT ABJITEtl 3 41' ct.14LET WITH hYl GAPS(TYR; Z -O I--4'NIN, 5'MIN, I O 0 GETTER U FWW4 _-_. _ I L'i ��6P.AYEL FIB - U PLAN VIEW o a a I J I 4 ----- U L � FLur4 w 1 T] GF GFAYFT NAG I- V B IN I� W z IT AELGW ----- O y 1 I o / uaR .0' 1.4' I o_ 0 � GktiYEL 6pG �^ o PLAN VIEW 1 L RN INLET I \\1111111111111///// ti % LENGTHSUMBEF OF �'\ rn F PLFT GIRMEL RAGS '� {L: INLET �� • LFSTREA,nF \\`Q ••• R /i 3.0' \,4``� p 0 R EG \\v��••M••p•�• // :a z r�n�+� ASPEN I \�J�o _ L>[G' s ISOMETRIC VIEW G�nEF \ \ � ✓ 1 _ • /11 a CUPE :PAVEL IIAa INLET Q 11rIE:L{,4TE GRP.V EL NAGS LF THE MN�LFTE WHIM 1 2" WIDE x 6" TALL NOTCHES IN CONCRETE �L •••:�<C/\� N 4Y FLU• 45 - i / •4•••p• \ CURB (1 NORTH & 1 SOUTH, IN SIDES OF I / YO \ \\ SECTION A-A �Q NAL FOREBAY CURB) / 0 ///l/1111I I I I111111��`` " GLmna GRAVEL BAG FILTER AT DROP INLET ELI iAAvELHr� 2C'aL� SCALE: 1" = 10' ' o PLAN VTFW FDR MULTIPLE GRAVEL BAGS 1 1 PROJECT NO: 801-004 GRAVEL BAG CURB CHECK flo GRAVEL BAG APPLICJ�TIONS 0 10 20 II DATE: MARCH 12, 2025 0 Computer File Information shut Revisiors TE�PO���� CWA-4 Urban Drainage and Flood Control District November 2010 a2 Colorado Department of Transportation g C:, ul-r Lu- 4A' Lrtials. L,C L'u_e� :lunn.�rrrs P P STAVDARDPLANNU. "°`Ea °r"°" "v°""° 1 Urban Storm Drainage Criteria Manual Volume 3 1 I SHEET No: EC-05 a L" ,A dr r 7m4r, E r LTA Ti_x n c "r"d 8C•22P n FuIIFul "I �,, lhusue •..G iars._ u,[ I:F nc (s:�.,7.a y�a� EROSION CONTROL �- 17,n F I '.a 7 ri7 r r - ee,• tlA i Fa (3G3),571EA20 j ?At ,er 4Rrvs:d r.a _Au rot..lAe .arts. Erdi* a Project Development Branch DD/LTA I---d Ny;P-1-IJeve6YPme,f FN-I., L,r, 4,rou Sbcct No. 'u of 12. 5 OF 5 a