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Home My WebLink AboutENCLAVE AT REDWOOD - FDP220014 - SUBMITTAL DOCUMENTS - ROUND 8 - ECS Report EROSION AND SEDIMENT CONTROL REPORT FOR ENCLAVE AT REDWOOD FORT COLLINS, CO 80524 April 8, 2024 Owner/Developer/Contractor: Brian Bratcher 9555 S Kingston Ct, Suite 200 Englewood, CO 80112 Ph: 303-488-0061 Email: bbratcher@drhorton.com Design Engineer: Rachel Patton, P.E. 1120 Lincoln Street, Suite 1000 Denver, CO 80203 Ph: 303-623-6300, Fax: 303-623-6311 Email: rpatton@hkseng.com Harris Kocher Smith Project No.: 201013 Erosion Control Administrator: Stormwater Management Plan Enclave at Redwood Page 2 of 9 TABLE OF CONTENTS I. Location .................................................................................................................... 3 II. Nature of Construction Activity ................................................................................. 3 III. Sequence of Major Activities .................................................................................... 3 IV. Estimates of Site Area .............................................................................................. 3 V. Summary of Existing Data ........................................................................................ 3 VI. Existing Vegetation ................................................................................................... 4 VII. Potential Pollution Sources ....................................................................................... 4 VIII. Potential Non-Stormwater Discharges ...................................................................... 6 IX. Receiving Water(s) ................................................................................................... 6 X. Construction Schedule ............................................................................................. 7 XI. Stormwater Management Considerations ................................................................ 7 XII. Erosion and Sediment Control Measures (BMP’s) ................................................... 7 XIII. SWMP Administrator ................................................................................................ 9 XIV. Final Stabilization and Long-Term Stormwater Management ................................... 9 XV. Inspection and Maintenance ..................................................................................... 9 XVI. Conclusion .............................................................................................................. 10 XVII. References ............................................................................................................. 10 APPENDIX A – Vicinity Map, FIRM Map ........................................................................... 11 APPENDIX B – NRCS Soils Report .................................................................................... 12 APPENDIX C – Standard Operating Procedures ................................................................ 13 APPENDIX D – Erosion Control Plan ................................................................................ 14 Stormwater Management Plan Enclave at Redwood Page 3 of 9 I. Location The proposed Enclave at Redwood development (hereinafter referred to as “Site”) is located in the southeast ¼ of Section 1, Township 7 north, Range 69 west of the sixth Principal Meridian, City of Fort Collins, County of Larimer, State of Colorado. The Site is bounded by Redwood Street to the west and East Suniga Road to the south. A small portion of the Site exists south of East Suniga Road. Adjacent developments include the Meadows at Redwood PUD Phase 1 (Redwood Meadows) to the west, Northfield to the east and southeast, and Evergreen Park 3rd (Evergreen) to the north. Lake Canal exists as an irrigation ditch adjacent to the Site to the east and southeast, and Redwood Channel lies adjacent to the Site to the north. The Site will connect to Redwood St to the southwest, Lupine Dr in Redwood Meadows to the west, Steeley Dr in Northfield to the southeast, and Collamer Dr in Northfield to the east. The Site consists of approximately 29.66 acres of undeveloped land, more specifically, totally undeveloped grassland. The Vicinity Map is included in Appendix A for reference. II. Nature of Construction Activity The Site will be developed as multi-family residential housing, with a mix of 1-, 2- and 3-bedroom units totaling 238 units among 40-1- and 2-story buildings. The proposed development will also include a clubhouse with a pool, amenity courtyard, surface parking, public and private roads, and the associated utilities. III. Sequence of Major Activities The proposed sequence for major activities is described in detail in the Stormwater Management Considerations section below. Please note that stockpiling activities have been designed as a separate permit due to a significant amount of import that is needed for the Site. IV. Estimates of Site Area The Site is approximately 29.66 acres. Areas that will be disturbed by demolition, excavation, grading, utility installation and other construction activities include approximately 28.37 acres of on-Site work and 4.59 acres of off-Site for a total of 32.96 acres. The exact limits of disturbance are shown on the SWMP included in Appendix D. V. Summary of Existing Data Currently, the Site is comprised of undeveloped grassland covering approximately 98% of the Site based on observation. There are no visible existing structures or foundations. There is an existing City owned drainage swale along the northern portion of the Site. This ditch conveys water from the Redwood Meadows Pond that is northwest of the Site and flows from west to east to the wetlands area northeast of the Site. There is also an existing irrigation canal owned by the Lake Canal Reservoir Company adjacent to the Site to the east and southeast, which flows from southwest to northeast. The Site generally slopes from west to east at grades between roughly 0.3% and 1% towards Lake Canal. The side slopes of the canal vary from 2:1 to 4:1. The thalweg slope of the canal is very flat. During irrigation flows in the canal, the canal flows to the northeast along the east property boundary. Perimeter silt fence will contain stormwater run-off onSite. There are currently no existing stormwater or erosion control measures on-Site. Stormwater Management Plan Enclave at Redwood Page 4 of 9 The Redwood Meadows Pond has existing wetlands area which is adjacent to the northwest corner of the Site. The wetlands boundary is approximately 10’ feet away from the property line. The wetlands area is approximately 0.53 acres. There is an additional pond to the northeast. This pond is the Evergreen East Pond which has approximately 1.64 acres of wetland. The city owned ditch on the north side of the Site connects these two wetland areas. Perimeter controls will be implemented along the south edge of the city owned ditch to retain stormwater onSite. Impacts to the wetlands are not anticipated at this time and erosion measures will be put in place to contain stockpiles and protect the Redwood Meadows Pond and wetlands from any Site runoff. There are three soil types as identified by the Natural Resource Conservation Service (NRCS) Web Soil Survey. Loveland Clay Loam, Nunn Clay Loam, and Nunn Clay Loam (wet). All soil on Site is classified as hydrologic soil group C. These soils are cohesive and are moderately resistant to wind and water erosion. A copy of the soil survey is included in Appendix B. Ground water was also encountered during initial soil testing. Groundwater depths range from 8-12 feet from existing grade and will eventually be 8-17 feet under finished proposed grades. Groundwater was not sampled and tested for any existing contamination. Soil testing did not show any ground contamination. The Site is shown on the Federal Emergency Agency’s (FEMA) Flood Insurance Rate Map (FIRM) Community Panel Numbers 08069C0977G and 08069C0981G, effective June 17, 2008. Lake Canal is partially located within Zone X (0.2% annual chance flood hazard) and therefore the Site is partially within this zone. Because the development of the Site will not involve altering of Lake Canal, no floodplain modifications are necessary. Please refer to Appendix A for more details. VI. Existing Vegetation Currently, the Site consists of mostly native grasses and vegetation. Vegetation covers approximately 98% of the Site. There is very little impervious area onSite, if any, in the current condition. VII. Potential Pollution Sources The construction activities associated with this project will have some potential to pollute the storm water being discharged from the Site. If these erosion measures are not properly installed off-Site sediment may occur with large stormwater flows. This has potential to damage the surrounding wetlands. Below are the pollutants with a short description of each: Disturbed and Stored Soils Disturbed and stored soils are a potential pollution source for the Site. Implementing dust mitigation, rock socks, and silt fence will control the disturbed and stored soils. Due to the large amount of Import for this Site, a separate stockpile SWMP has been done. And all soil will be onSite before commencement of other construction activities. Because of this temporary sediment control measure such as silt fence, and rock socks will already be in place, and will remain until necessary to remove. Vehicle Tracking of Sediments Vehicle tracking of sediments is a potential pollution source for the Site and will be controlled by a vehicle tracking control pad(s) located at the construction entrance(s). Fencing will also limit vehicle access to designated entry(s). Street sweeping will also be utilized to limit the tracking of sediment off-Site. Stormwater Management Plan Enclave at Redwood Page 5 of 9 Management of Contaminated Soils The Contractor is responsible for monitoring for contaminated soils and notify the engineer and Larimer County if discovered. Stockpiling activities will only grub topsoil. Material exposure is not anticipated to be encountered at this time. On-Site soil samples did not contain any contamination. It is the contractor’s responsibility to collect and legally dispose of contaminated soils. Loading and Unloading Operations Loading and unloading operations is a potential pollution source for the Site. Loading and unloading operations shall take place within the stabilized staging area. Vehicle and Equipment Maintenance and Fueling Vehicle and equipment maintenance and fueling is a potential pollution source for the Site. Measures shall also be taken to prevent spills or leaks of fuel, oils, lubricants, antifreeze, and other contaminant fluids from construction vehicles to protect groundwater and stormwater runoff. All equipment maintenance shall be performed in a designated area, and measures such as drip pans shall be used to contain petroleum products. Spills of construction materials should be cleaned up immediately and disposed of properly. The Contractor shall routinely inspect equipment for leaks that could lead to discharge of petroleum products into surface runoff. Outdoor Storage Activities Outdoor storage activities are a potential pollution source for the Site. Materials sometimes used at a construction Site present a potential for contamination of stormwater runoff. These may include, but are not limited to building materials, fuel, oil, lubricants, paints, solvents, concrete curing compounds, pesticides, fertilizers, chemicals, herbicides, etc. The contractor shall designate an area where these products are stored in an enclosure, container, or lined earthen dike, constructed to prevent discharge of these materials in runoff from the Site. These barriers will also function to contain spilled materials from contact with surface runoff. Standard Operating Procedures for material spill containment and clean-up are provided in Appendix C. Material other than soil is not anticipated to be stored during stock piling activities. Routine Maintenance Activities (Fertilizers, Pesticides, Detergents, Fuels, Solvents, and Oils) Routine maintenance activities are a potential pollution source for this Site. Fertilizers and pesticides will be used during this project when healthy vegetation is being established. These products are highly soluble and can combine with stormwater if applied during or just before a precipitation event. Contractor shall apply product per manufacturers recommendation and designate an area where these products will be stored in an enclosure, container, or lined earthen dike to prevent discharge of these materials to runoff from the Site. Detergents, fuels, solvents, and oils will also likely be used on this Site. These contaminants are typically noticeable when mixed with water by discoloration. Contractor shall keep an eye out for contamination and dispose of the contaminated liquid right way. These products shall be stored within an enclosure, container, trailer, or other method. Dust or Particulate Generating Processes Significant dust or particulate generating processes are a potential pollution source for the Site. Dust mitigation, surface roughening, and seeding and mulching shall be implemented to mitigate airborne dust pollutants. These activities will be need to be conducted in accordance with the City of Fort Collins Fugitive Dust Ordinances. The Dust Control Manual can be found at www.fcgov.com/dust Stormwater Management Plan Enclave at Redwood Page 6 of 9 On-Site Waste Management Practices On-Site waste management practices (waste piles, liquid wastes, dumpsters, etc.) are not a potential pollution source for the Site during stockpile activities. Saw Cutting and Grinding Saw cutting and grinding are a potential pollution source for this Site. Cutting of existing streets will be done on this Site, and the saws used can generate a significant amount of dust. Watering the cutting surface to prevent airborne particulates is required per the Fort Collins Fugitive Dust Manual. Contractor to prevent slurry from entering stormwater via vacuum or air drying and sweeping after cutting has been finished. Concrete Truck/Equipment Washing Concrete truck and equipment washing is not a potential pollution source for the Site and should only occur at the designated Concrete Washout Area shown on the SWMP. Dedicated Asphalt and Concrete Batch Plans Dedicated asphalt and concrete batch plants are not a potential pollution source for the Site. There will not be any dedicated concrete or asphalt batch plants on Site. Non-Industrial Waste Sources Non-industrial waste sources such as worker trash and portable toilets are not potential pollution source for the Site. Other Areas or Procedures Where Potential Spills Can Occur Other areas or procedures where potential spills can occur are not a potential pollution source for the Site. VIII. Potential Non-Stormwater Discharges Non-stormwater components of discharge, such as condensate from construction trailers, underground springs and landscape irrigation return flow are not anticipated to occur with this development. However, the contractor shall be responsible to monitor for such discharges and notify the engineer in such an event. If construction dewatering is necessary, the contractor shall be responsible for ensuring a construction dewatering permit is obtained prior to discharging water to surface water or storm sewer systems. IX. Receiving Water(s) During high stormwater events, the Site currently drains to the lake canal ditch, city owned ditch and some minor flow may make its way into the Redwood Meadows Pond. There are no controls on Site to direct run off in any concentrated direction. According to the EPA, there are two receiving waters for this Site; Dry Creek which is the receiving water for the North East College Corridor Outfall (NECCO) and Timnath Reservoir which receives irrigation water from Lake Canal Reservoir Company. The NECCO storm line outfalls into Dry Creek just south of E Vine Dr. The runoff then travels approximately 7,000 ft southeast, then runs approximately 2,500 ft south where it will ultimately end up in the Poudre River. Stormwater Management Plan Enclave at Redwood Page 7 of 9 X. Construction Schedule Construction activities on this Project is scheduled to commence spring of 2024 with anticipated completion will be in the fall of 2026. Construction BMPs for the entire Site shall be installed according to the SWMP in Appendix E. XI. Stormwater Management Considerations Stormwater management for the Site will be accomplished in the following Phases: Phase 1 - Prior to earth disturbances Construction Fence (CF) Vehicle tracking control (VTC) Silt Fence (SF) installation Inlet Protection (IP) at the existing inlets (Refer to Stormwater Management Plan) Stabilized Staging Area installation Phase 2 - During and immediately after earth disturbances Maintenance of the previously installed measures Roadway inspection and any necessary cleanup each day Sediment basin (SB) installation Concrete washout area (CWA) installation Surface roughening where necessary Temporary Soil Stockpile (SP) area installation Seeding and Mulching Phase 3 - After paving, foundation construction and underground utility construction Maintenance of the previously installed measures Installation of inlet protection on new storm inlets Removal of sediment basin Removal of concrete washout area Phase 4 - Final Maintenance of the previously installed measures Installation of formal landscaping Request for final inspection Upon inspection approval, removal of temporary measures XII. Erosion and Sediment Control Measures (BMP’s) The following Best Management Practices (BMPs) shall be implemented as indicated, prior to and during construction activities on the Site. The information shown below describes the BMP, when it is estimated to be installed, and the maintenance requirements of the BMP. The Plan Set in Appendix D displays the locations of the BMPs. The associated City of Fort Collins details can be seen in Appendix D for BMP installation and maintenance. Silt Fence (SF) A woven geotextile fabric attached to wooden posts and trenched into the ground. It is used to intercept sheet flow runoff from disturbed areas. The silt fence shall be installed prior to all land disturbing activities. The contractor shall inspect and maintain all silt fence throughout construction. Any section of silt fence that has a tear, hole, slumping, undercutting or has been Stormwater Management Plan Enclave at Redwood Page 8 of 9 bypassed should be replaced with a new section. Accumulated sediment should be removed before it reached a depth of 50% the height of the silt fence. Vehicle Control Tracking (VTC) A stabilized construction Site access where vehicles exit the Site onto paved public roads. It helps removed sediment from vehicles, reducing tacking onto the paved surface. The vehicle control tracking shall be installed prior to any land disturbing activities. Vehicle tracking control shall be inspected and maintained throughout construction. Replace aggregate or material used for stabilization at entrance/exit as needed. Ensure drainage ways are not blocked by vehicle tracking control. Stockpile Management (SP) Area on Site where soils and other erodible materials are stored. Includes measures to minimize erosion and sediment transport from soil stockpiles. The stockpile management area shall be installed prior to any land disturbing activities. Stockpiles shall be inspected and maintained throughout construction activities. Inlet Protection (IP) Permeable barriers installed around an inlet to filter runoff and remove sediment prior to entering a storm drain inlet. These can be constructed from rock socks, sediment control logs, silt fence, block and rock socks, or other materials approved by Commerce City. Area inlets can also be protected by over-excavating around the inlet to form a sediment trap. Inlet protection shall be installed prior to any land disturbing activities. Inlet protection shall be inspected and maintained throughout construction activities. Ensure that flows do not bypass the inlet protection when flowing to the storm drainage system. Accumulated sediment should be removed before it reaches a depth of 50% the height of the inlet protection. Rock Sock (RS) Gravel that has been wrapped by wire mesh or a geotextile to form an elongated cylindrical filter. Used either as a perimeter control or as part of inlet protection. These are intended to trap sediment from storm water runoff that flows onto roadways because of construction activities. Rock socks shall be installed prior to any land disturbing activities. Rock socks shall be inspected and maintained throughout construction activities. Accumulated sediment should be removed before it reaches a depth of 50% the height of the rock sock. Construction Fence (CF) Fence that restricts Site access to designated entrances and exits, delineates construction Site boundaries and keeps construction out of sensitive areas such as natural areas to be preserved as open space, wetlands and riparian areas. These may be chain link or plastic mesh. Construction fence shall be installed prior to any construction activities. Construction fencing shall be inspected and maintained through construction activities. Seeding and Mulching (SM) Measures that include means to return the exposed dirt to a stabilized condition, one what will not continue to result in erosion or sediment transport. A City approved seed mix will be applied to stabilize the stock pile until final grading activities have commenced. Stormwater Management Plan Enclave at Redwood Page 9 of 9 Street Sweeping (SS) Street sweeping and vacuuming is to remove sediment that has been tracked onto roadways to reduce sediment transport into storm drain systems or a surface waterway. This can be done manually or with specific vehicles designed for this purpose. Street sweeping should be performed in periodic intervals and when there is noticeable sediment accumulation. XIII. SWMP Administrator The stormwater management plan (SWMP) administrator shall be the Construction Site Superintendent.  The Site superintendent is responsible for implementing and maintaining the Stormwater Management Plan.  The SWMP administrator shall contact the engineer of record for development and revisions of the SWMP.  The SWMP administrator shall be responsible for reporting spills.  The SWMP administrator shall conduct Site inspections and shall verify that repairs to the BMPs have been completed and certify corrections.  The SWMP administrator shall conduct BMP training. XIV. Final Stabilization and Long-Term Stormwater Management Upon the completion of stockpiling activities, proper stabilization and vegetation will be established with a native seed mix. Disturbed open space areas and the stock pile area will be planted with Native Seed. Disturbances are to be minimized, especially on slopes greater than 4:1. Final stabilization is reached when all soil-disturbing activities at the Site have been completed, and uniform vegetative cover has been established with a density of at least seventy percent of pre-disturbance levels or equivalent permanent, physical erosion reduction methods have been employed. Soil compaction will be minimized for areas where final stabilization will be achieved through vegetative cover or an infiltration control measure. Areas where sod will be installed as designed, will require soil perpetration and amending per City of Fort Collins Municipal Code Section 12-132. Seeding needs to comply with City of Fort Collins landscape standards. See Stockpile plan notes and approved landscape plans by others to establish proper native seed application and acceptance. All seeded areas will be crimped and mulched same day or next day after seeding in accordance with the Temporary and Permanent Seeding Details associated with this project as seen in the appendix, and in accordance with the City of Fort Collins Erosion Control Criteria. Once installed there will be no temporary irrigation system so all seeding will be monitored until the Site has reached a vegetative cover (density) of 70%. It is anticipated that this Site will be seeded in the spring of 2023 and will be fully established in the fall of 2026. At the point the vegetation has reached 70% density, and confirmed by the City of Fort Collins, the warranty period for Erosion Control will begin, all stormwater infrastructure will be cleaned with any sediment deposits being removed and disposed of properly and then remaining temporary Control Measures will be removed. XV. Inspection and Maintenance At a minimum, the Permittee or contractor shall produce and retain weekly written inspection records for all BMP’s and after significant precipitation events. All necessary maintenance and repair shall be completed immediately. However, street sweeping is to be completed by the close of the business day or on an as needed basis. It is the responsibility of the contractor to have all erosion control devices in place and effective, prior to a storm event. Permittee or Contractor shall produce written inspection records every seven (7) days and after significant precipitation events. Stormwater Management Plan Enclave at Redwood Page 10 of 9 The SWMP Administrator must maintain a record of inspection results for a period of three (3) years following expiration or inactivation of permit coverage. Record Keeping and Documenting Inspections The following items, at a minimum, must be documented as a part of the Site inspections: i. The inspection date; ii. Name(s) and Title(s) of personnel making the inspection; iii. Weather conditions at the time of inspection; iv. Phase of construction at the time of inspection; v. Estimated acreage of disturbance at the time of inspection; vi. Location(s) of discharges of sediment or other pollutants from the Site; vii. Location(s) of control measures requiring routine maintenance; viii. Location(s) and identification of inadequate control measures requiring corrective actions; ix. Location(s) and identification of additional control measures need that were not in place at the time of inspection; x. Description of the minimum inspection frequency and any deviations from the minimum inspection schedule After adequate corrective action(s) has been taken, or where a report does not identify any incidents requiring corrective action or maintenance, 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. XVI. Conclusion This Stormwater Management Plan is in conformance with the State of Colorado Stormwater Management Plan Preparation Guidance. Additional grading, erosion and sediment control measures may be required of the owner or his/her agents, due to unforeseen erosion problems or if the submitted plan does not function as intended. The requirements of this plan shall be the obligation of the landowner and/or his successors or heirs; until such time as the plan is properly completed, modified, or voided. XVII. References 1. Fort Collins Amendment Manual Volume 3 Chapter 12; City Council of the City of Fort Collins. 2. Fort Collins Stormwater Criteria Manual; City Council of the City of Fort Collins; Revised December, 2018. 3. Urban Storm Drainage Criteria Manual: Volume 3; Urban Drainage and Flood Control District; Updated April 2018. APPENDIX A – Vicinity Map, FIRM Map SHEET NUMBER PROJECT #: 1120 Lincoln Street, Suite 1000 Denver, Colorado 80203 P: 303.623.6300 F: 303.623.6311 HarrisKocherSmith.com Pl o t t e d : TH U 1 0 / 1 3 / 2 2 1 : 2 1 : 3 9 P B y : Mi l e s S u s t a d F i l e p a t h : k: \ 2 0 1 0 1 3 \ e n g i n e e r i n g \ x r e f \ v i c m a p . d w g L a y o u t : la y o u t 1 201013 ENCLAVE AT REDWOOD - VICINTY MAP 1 1 OF 1 DHI COMMUNITIES NO CHANGES ARE TO BE MADE TO THIS DRAWING WITHOUT WRITTEN PERMISSION OF HARRIS KOCHER SM 0 SCALE: 1" = 800 800 1600 800' APPENDIX B – NRCS Soils Report United States Department of Agriculture A product of the National Cooperative Soil Survey, a joint effort of the United States Department of Agriculture and other Federal agencies, State agencies including the Agricultural Experiment Stations, and local participants Custom Soil Resource Report for Larimer County Area, ColoradoNatural Resources Conservation Service March 8, 2022 Preface Soil surveys contain information that affects land use planning in survey areas. They highlight soil limitations that affect various land uses and provide information about the properties of the soils in the survey areas. Soil surveys are designed for many different users, including farmers, ranchers, foresters, agronomists, urban planners, community officials, engineers, developers, builders, and home buyers. Also, conservationists, teachers, students, and specialists in recreation, waste disposal, and pollution control can use the surveys to help them understand, protect, or enhance the environment. Various land use regulations of Federal, State, and local governments may impose special restrictions on land use or land treatment. Soil surveys identify soil properties that are used in making various land use or land treatment decisions. The information is intended to help the land users identify and reduce the effects of soil limitations on various land uses. The landowner or user is responsible for identifying and complying with existing laws and regulations. Although soil survey information can be used for general farm, local, and wider area planning, onsite investigation is needed to supplement this information in some cases. Examples include soil quality assessments (http://www.nrcs.usda.gov/wps/ portal/nrcs/main/soils/health/) and certain conservation and engineering applications. For more detailed information, contact your local USDA Service Center (https://offices.sc.egov.usda.gov/locator/app?agency=nrcs) or your NRCS State Soil Scientist (http://www.nrcs.usda.gov/wps/portal/nrcs/detail/soils/contactus/? cid=nrcs142p2_053951). Great differences in soil properties can occur within short distances. Some soils are seasonally wet or subject to flooding. Some are too unstable to be used as a foundation for buildings or roads. Clayey or wet soils are poorly suited to use as septic tank absorption fields. A high water table makes a soil poorly suited to basements or underground installations. The National Cooperative Soil Survey is a joint effort of the United States Department of Agriculture and other Federal agencies, State agencies including the Agricultural Experiment Stations, and local agencies. The Natural Resources Conservation Service (NRCS) has leadership for the Federal part of the National Cooperative Soil Survey. Information about soils is updated periodically. Updated information is available through the NRCS Web Soil Survey, the site for official soil survey information. The U.S. Department of Agriculture (USDA) prohibits discrimination in all its programs and activities on the basis of race, color, national origin, age, disability, and where applicable, sex, marital status, familial status, parental status, religion, sexual orientation, genetic information, political beliefs, reprisal, or because all or a part of an individual's income is derived from any public assistance program. (Not all prohibited bases apply to all programs.) Persons with disabilities who require 2 alternative means for communication of program information (Braille, large print, audiotape, etc.) should contact USDA's TARGET Center at (202) 720-2600 (voice and TDD). To file a complaint of discrimination, write to USDA, Director, Office of Civil Rights, 1400 Independence Avenue, S.W., Washington, D.C. 20250-9410 or call (800) 795-3272 (voice) or (202) 720-6382 (TDD). USDA is an equal opportunity provider and employer. 3 Contents Preface....................................................................................................................2 How Soil Surveys Are Made..................................................................................5 Soil Map..................................................................................................................8 Soil Map................................................................................................................9 Legend................................................................................................................10 Map Unit Legend................................................................................................11 Map Unit Descriptions.........................................................................................11 Larimer County Area, Colorado......................................................................13 22—Caruso clay loam, 0 to 1 percent slope...............................................13 64—Loveland clay loam, 0 to 1 percent slopes...........................................14 73—Nunn clay loam, 0 to 1 percent slopes.................................................15 76—Nunn clay loam, wet, 1 to 3 percent slopes.........................................16 References............................................................................................................19 4 How Soil Surveys Are Made Soil surveys are made to provide information about the soils and miscellaneous areas in a specific area. They include a description of the soils and miscellaneous areas and their location on the landscape and tables that show soil properties and limitations affecting various uses. Soil scientists observed the steepness, length, and shape of the slopes; the general pattern of drainage; the kinds of crops and native plants; and the kinds of bedrock. They observed and described many soil profiles. A soil profile is the sequence of natural layers, or horizons, in a soil. The profile extends from the surface down into the unconsolidated material in which the soil formed or from the surface down to bedrock. The unconsolidated material is devoid of roots and other living organisms and has not been changed by other biological activity. Currently, soils are mapped according to the boundaries of major land resource areas (MLRAs). MLRAs are geographically associated land resource units that share common characteristics related to physiography, geology, climate, water resources, soils, biological resources, and land uses (USDA, 2006). Soil survey areas typically consist of parts of one or more MLRA. The soils and miscellaneous areas in a survey area occur in an orderly pattern that is related to the geology, landforms, relief, climate, and natural vegetation of the area. Each kind of soil and miscellaneous area is associated with a particular kind of landform or with a segment of the landform. By observing the soils and miscellaneous areas in the survey area and relating their position to specific segments of the landform, a soil scientist develops a concept, or model, of how they were formed. Thus, during mapping, this model enables the soil scientist to predict with a considerable degree of accuracy the kind of soil or miscellaneous area at a specific location on the landscape. Commonly, individual soils on the landscape merge into one another as their characteristics gradually change. To construct an accurate soil map, however, soil scientists must determine the boundaries between the soils. They can observe only a limited number of soil profiles. Nevertheless, these observations, supplemented by an understanding of the soil-vegetation-landscape relationship, are sufficient to verify predictions of the kinds of soil in an area and to determine the boundaries. Soil scientists recorded the characteristics of the soil profiles that they studied. They noted soil color, texture, size and shape of soil aggregates, kind and amount of rock fragments, distribution of plant roots, reaction, and other features that enable them to identify soils. After describing the soils in the survey area and determining their properties, the soil scientists assigned the soils to taxonomic classes (units). Taxonomic classes are concepts. Each taxonomic class has a set of soil characteristics with precisely defined limits. The classes are used as a basis for comparison to classify soils systematically. Soil taxonomy, the system of taxonomic classification used in the United States, is based mainly on the kind and character of soil properties and the arrangement of horizons within the profile. After the soil 5 scientists classified and named the soils in the survey area, they compared the individual soils with similar soils in the same taxonomic class in other areas so that they could confirm data and assemble additional data based on experience and research. The objective of soil mapping is not to delineate pure map unit components; the objective is to separate the landscape into landforms or landform segments that have similar use and management requirements. Each map unit is defined by a unique combination of soil components and/or miscellaneous areas in predictable proportions. Some components may be highly contrasting to the other components of the map unit. The presence of minor components in a map unit in no way diminishes the usefulness or accuracy of the data. The delineation of such landforms and landform segments on the map provides sufficient information for the development of resource plans. If intensive use of small areas is planned, onsite investigation is needed to define and locate the soils and miscellaneous areas. Soil scientists make many field observations in the process of producing a soil map. The frequency of observation is dependent upon several factors, including scale of mapping, intensity of mapping, design of map units, complexity of the landscape, and experience of the soil scientist. Observations are made to test and refine the soil-landscape model and predictions and to verify the classification of the soils at specific locations. Once the soil-landscape model is refined, a significantly smaller number of measurements of individual soil properties are made and recorded. These measurements may include field measurements, such as those for color, depth to bedrock, and texture, and laboratory measurements, such as those for content of sand, silt, clay, salt, and other components. Properties of each soil typically vary from one point to another across the landscape. Observations for map unit components are aggregated to develop ranges of characteristics for the components. The aggregated values are presented. Direct measurements do not exist for every property presented for every map unit component. Values for some properties are estimated from combinations of other properties. While a soil survey is in progress, samples of some of the soils in the area generally are collected for laboratory analyses and for engineering tests. Soil scientists interpret the data from these analyses and tests as well as the field-observed characteristics and the soil properties to determine the expected behavior of the soils under different uses. Interpretations for all of the soils are field tested through observation of the soils in different uses and under different levels of management. Some interpretations are modified to fit local conditions, and some new interpretations are developed to meet local needs. Data are assembled from other sources, such as research information, production records, and field experience of specialists. For example, data on crop yields under defined levels of management are assembled from farm records and from field or plot experiments on the same kinds of soil. Predictions about soil behavior are based not only on soil properties but also on such variables as climate and biological activity. Soil conditions are predictable over long periods of time, but they are not predictable from year to year. For example, soil scientists can predict with a fairly high degree of accuracy that a given soil will have a high water table within certain depths in most years, but they cannot predict that a high water table will always be at a specific level in the soil on a specific date. After soil scientists located and identified the significant natural bodies of soil in the survey area, they drew the boundaries of these bodies on aerial photographs and Custom Soil Resource Report 6 identified each as a specific map unit. Aerial photographs show trees, buildings, fields, roads, and rivers, all of which help in locating boundaries accurately. Custom Soil Resource Report 7 Soil Map The soil map section includes the soil map for the defined area of interest, a list of soil map units on the map and extent of each map unit, and cartographic symbols displayed on the map. Also presented are various metadata about data used to produce the map, and a description of each soil map unit. 8 9 Custom Soil Resource Report Soil Map 44 9 4 2 0 0 44 9 4 3 0 0 44 9 4 4 0 0 44 9 4 5 0 0 44 9 4 6 0 0 44 9 4 7 0 0 44 9 4 2 0 0 44 9 4 3 0 0 44 9 4 4 0 0 44 9 4 5 0 0 44 9 4 6 0 0 44 9 4 7 0 0 494200 494300 494400 494500 494600 494700 494800 494900 495000 494200 494300 494400 494500 494600 494700 494800 494900 495000 40° 36' 12'' N 10 5 ° 4 ' 9 ' ' W 40° 36' 12'' N 10 5 ° 3 ' 2 9 ' ' W 40° 35' 52'' N 10 5 ° 4 ' 9 ' ' W 40° 35' 52'' N 10 5 ° 3 ' 2 9 ' ' W N Map projection: Web Mercator Corner coordinates: WGS84 Edge tics: UTM Zone 13N WGS84 0 200 400 800 1200 Feet 0 50 100 200 300 Meters Map Scale: 1:4,330 if printed on A landscape (11" x 8.5") sheet. Soil Map may not be valid at this scale. MAP LEGEND MAP INFORMATION Area of Interest (AOI) Area of Interest (AOI) Soils Soil Map Unit Polygons Soil Map Unit Lines Soil Map Unit Points Special Point Features Blowout Borrow Pit Clay Spot Closed Depression Gravel Pit Gravelly Spot Landfill Lava Flow Marsh or swamp Mine or Quarry Miscellaneous Water Perennial Water Rock Outcrop Saline Spot Sandy Spot Severely Eroded Spot Sinkhole Slide or Slip Sodic Spot Spoil Area Stony Spot Very Stony Spot Wet Spot Other Special Line Features Water Features Streams and Canals Transportation Rails Interstate Highways US Routes Major Roads Local Roads Background Aerial Photography The soil surveys that comprise your AOI were mapped at 1:24,000. Warning: Soil Map may not be valid at this scale. Enlargement of maps beyond the scale of mapping can cause misunderstanding of the detail of mapping and accuracy of soil line placement. The maps do not show the small areas of contrasting soils that could have been shown at a more detailed scale. Please rely on the bar scale on each map sheet for map measurements. Source of Map: Natural Resources Conservation Service Web Soil Survey URL: Coordinate System: Web Mercator (EPSG:3857) Maps from the Web Soil Survey are based on the Web Mercator projection, which preserves direction and shape but distorts distance and area. A projection that preserves area, such as the Albers equal-area conic projection, should be used if more accurate calculations of distance or area are required. This product is generated from the USDA-NRCS certified data as of the version date(s) listed below. Soil Survey Area: Larimer County Area, Colorado Survey Area Data: Version 16, Sep 2, 2021 Soil map units are labeled (as space allows) for map scales 1:50,000 or larger. Date(s) aerial images were photographed: Aug 11, 2018—Aug 12, 2018 The orthophoto or other base map on which the soil lines were compiled and digitized probably differs from the background imagery displayed on these maps. As a result, some minor shifting of map unit boundaries may be evident. Custom Soil Resource Report 10 Map Unit Legend Map Unit Symbol Map Unit Name Acres in AOI Percent of AOI 22 Caruso clay loam, 0 to 1 percent slope 0.0 0.0% 64 Loveland clay loam, 0 to 1 percent slopes 6.7 26.3% 73 Nunn clay loam, 0 to 1 percent slopes 11.8 46.2% 76 Nunn clay loam, wet, 1 to 3 percent slopes 7.0 27.4% Totals for Area of Interest 25.6 100.0% Map Unit Descriptions The map units delineated on the detailed soil maps in a soil survey represent the soils or miscellaneous areas in the survey area. The map unit descriptions, along with the maps, can be used to determine the composition and properties of a unit. A map unit delineation on a soil map represents an area dominated by one or more major kinds of soil or miscellaneous areas. A map unit is identified and named according to the taxonomic classification of the dominant soils. Within a taxonomic class there are precisely defined limits for the properties of the soils. On the landscape, however, the soils are natural phenomena, and they have the characteristic variability of all natural phenomena. Thus, the range of some observed properties may extend beyond the limits defined for a taxonomic class. Areas of soils of a single taxonomic class rarely, if ever, can be mapped without including areas of other taxonomic classes. Consequently, every map unit is made up of the soils or miscellaneous areas for which it is named and some minor components that belong to taxonomic classes other than those of the major soils. Most minor soils have properties similar to those of the dominant soil or soils in the map unit, and thus they do not affect use and management. These are called noncontrasting, or similar, components. They may or may not be mentioned in a particular map unit description. Other minor components, however, have properties and behavioral characteristics divergent enough to affect use or to require different management. These are called contrasting, or dissimilar, components. They generally are in small areas and could not be mapped separately because of the scale used. Some small areas of strongly contrasting soils or miscellaneous areas are identified by a special symbol on the maps. If included in the database for a given area, the contrasting minor components are identified in the map unit descriptions along with some characteristics of each. A few areas of minor components may not have been observed, and consequently they are not mentioned in the descriptions, especially where the pattern was so complex that it was impractical to make enough observations to identify all the soils and miscellaneous areas on the landscape. Custom Soil Resource Report 11 The presence of minor components in a map unit in no way diminishes the usefulness or accuracy of the data. The objective of mapping is not to delineate pure taxonomic classes but rather to separate the landscape into landforms or landform segments that have similar use and management requirements. The delineation of such segments on the map provides sufficient information for the development of resource plans. If intensive use of small areas is planned, however, onsite investigation is needed to define and locate the soils and miscellaneous areas. An identifying symbol precedes the map unit name in the map unit descriptions. Each description includes general facts about the unit and gives important soil properties and qualities. Soils that have profiles that are almost alike make up a soil series. Except for differences in texture of the surface layer, all the soils of a series have major horizons that are similar in composition, thickness, and arrangement. Soils of one series can differ in texture of the surface layer, slope, stoniness, salinity, degree of erosion, and other characteristics that affect their use. On the basis of such differences, a soil series is divided into soil phases. Most of the areas shown on the detailed soil maps are phases of soil series. The name of a soil phase commonly indicates a feature that affects use or management. For example, Alpha silt loam, 0 to 2 percent slopes, is a phase of the Alpha series. Some map units are made up of two or more major soils or miscellaneous areas. These map units are complexes, associations, or undifferentiated groups. A complex consists of two or more soils or miscellaneous areas in such an intricate pattern or in such small areas that they cannot be shown separately on the maps. The pattern and proportion of the soils or miscellaneous areas are somewhat similar in all areas. Alpha-Beta complex, 0 to 6 percent slopes, is an example. An association is made up of two or more geographically associated soils or miscellaneous areas that are shown as one unit on the maps. Because of present or anticipated uses of the map units in the survey area, it was not considered practical or necessary to map the soils or miscellaneous areas separately. The pattern and relative proportion of the soils or miscellaneous areas are somewhat similar. Alpha-Beta association, 0 to 2 percent slopes, is an example. An undifferentiated group is made up of two or more soils or miscellaneous areas that could be mapped individually but are mapped as one unit because similar interpretations can be made for use and management. The pattern and proportion of the soils or miscellaneous areas in a mapped area are not uniform. An area can be made up of only one of the major soils or miscellaneous areas, or it can be made up of all of them. Alpha and Beta soils, 0 to 2 percent slopes, is an example. Some surveys include miscellaneous areas. Such areas have little or no soil material and support little or no vegetation. Rock outcrop is an example. Custom Soil Resource Report 12 Larimer County Area, Colorado 22—Caruso clay loam, 0 to 1 percent slope Map Unit Setting National map unit symbol: jpvt Elevation: 4,800 to 5,500 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 Caruso and similar soils:85 percent Minor components:15 percent Estimates are based on observations, descriptions, and transects of the mapunit. Description of Caruso Setting Landform:Flood-plain steps, stream terraces Landform position (three-dimensional):Tread Down-slope shape:Linear Across-slope shape:Linear Parent material:Mixed alluvium Typical profile H1 - 0 to 35 inches: clay loam H2 - 35 to 44 inches: fine sandy loam H3 - 44 to 60 inches: gravelly sand Properties and qualities Slope:0 to 1 percent Depth to restrictive feature:More than 80 inches Drainage class:Somewhat poorly drained Runoff class: High Capacity of the most limiting layer to transmit water (Ksat):Moderately low to moderately high (0.06 to 0.20 in/hr) Depth to water table:About 24 to 48 inches Frequency of flooding:NoneOccasional Frequency of ponding:None Calcium carbonate, maximum content:5 percent Maximum salinity:Nonsaline to very slightly saline (0.0 to 2.0 mmhos/cm) Available water supply, 0 to 60 inches: Moderate (about 8.4 inches) Interpretive groups Land capability classification (irrigated): 3w Land capability classification (nonirrigated): 5w Hydrologic Soil Group: D Ecological site: R067BY036CO - Overflow Hydric soil rating: No Minor Components Loveland Percent of map unit:9 percent Custom Soil Resource Report 13 Landform:Terraces Ecological site:R067BY036CO - Overflow Hydric soil rating: Yes Fluvaquents Percent of map unit:6 percent Landform:Terraces Hydric soil rating: Yes 64—Loveland clay loam, 0 to 1 percent slopes Map Unit Setting National map unit symbol: jpx9 Elevation: 4,800 to 5,500 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 Loveland and similar soils:90 percent Minor components:10 percent Estimates are based on observations, descriptions, and transects of the mapunit. Description of Loveland Setting Landform:Stream terraces, flood plains Landform position (three-dimensional):Tread Down-slope shape:Linear Across-slope shape:Linear Parent material:Alluvium Typical profile H1 - 0 to 15 inches: clay loam H2 - 15 to 32 inches: loam H3 - 32 to 60 inches: very gravelly sand Properties and qualities Slope:0 to 1 percent Depth to restrictive feature:More than 80 inches Drainage class:Poorly drained Runoff class: Medium Capacity of the most limiting layer to transmit water (Ksat):Moderately high (0.20 to 0.60 in/hr) Depth to water table:About 18 to 36 inches Frequency of flooding:NoneOccasional Frequency of ponding:None Calcium carbonate, maximum content:15 percent Maximum salinity:Very slightly saline to slightly saline (2.0 to 4.0 mmhos/cm) Available water supply, 0 to 60 inches: Moderate (about 7.5 inches) Custom Soil Resource Report 14 Interpretive groups Land capability classification (irrigated): 3w Land capability classification (nonirrigated): 3w Hydrologic Soil Group: C Ecological site: R067BY036CO - Overflow Hydric soil rating: No Minor Components Aquolls Percent of map unit:5 percent Landform:Swales Hydric soil rating: Yes Poudre Percent of map unit:5 percent Ecological site:R067BY036CO - Overflow Hydric soil rating: No 73—Nunn clay loam, 0 to 1 percent slopes Map Unit Setting National map unit symbol: 2tlng Elevation: 4,100 to 5,700 feet Mean annual precipitation: 14 to 15 inches Mean annual air temperature: 48 to 52 degrees F Frost-free period: 135 to 152 days Farmland classification: Prime farmland if irrigated Map Unit Composition Nunn and similar soils:85 percent Minor components:15 percent Estimates are based on observations, descriptions, and transects of the mapunit. Description of Nunn Setting Landform:Terraces Landform position (three-dimensional):Tread Down-slope shape:Linear Across-slope shape:Linear Parent material:Pleistocene aged alluvium and/or eolian deposits Typical profile Ap - 0 to 6 inches: clay loam Bt1 - 6 to 10 inches: clay loam Bt2 - 10 to 26 inches: clay loam Btk - 26 to 31 inches: clay loam Bk1 - 31 to 47 inches: loam Bk2 - 47 to 80 inches: loam Custom Soil Resource Report 15 Properties and qualities Slope:0 to 1 percent Depth to restrictive feature:More than 80 inches Drainage class:Well drained Runoff class: Medium Capacity of the most limiting layer to transmit water (Ksat):Moderately low to moderately high (0.06 to 0.20 in/hr) Depth to water table:More than 80 inches Frequency of flooding:None Frequency of ponding:None Calcium carbonate, maximum content:7 percent Maximum salinity:Nonsaline (0.1 to 1.0 mmhos/cm) Sodium adsorption ratio, maximum:0.5 Available water supply, 0 to 60 inches: High (about 9.1 inches) Interpretive groups Land capability classification (irrigated): 3e Land capability classification (nonirrigated): 4e Hydrologic Soil Group: C Ecological site: R067BY042CO - Clayey Plains Hydric soil rating: No Minor Components Heldt Percent of map unit:10 percent Landform:Terraces Landform position (three-dimensional):Tread Down-slope shape:Linear Across-slope shape:Linear Ecological site:R067BY042CO - Clayey Plains Hydric soil rating: No Wages Percent of map unit:5 percent Landform:Terraces Landform position (three-dimensional):Tread Down-slope shape:Linear Across-slope shape:Linear Ecological site:R067BY002CO - Loamy Plains Hydric soil rating: No 76—Nunn clay loam, wet, 1 to 3 percent slopes Map Unit Setting National map unit symbol: jpxq Elevation: 4,800 to 5,600 feet Mean annual precipitation: 13 to 15 inches Mean annual air temperature: 48 to 50 degrees F Frost-free period: 135 to 150 days Custom Soil Resource Report 16 Farmland classification: Prime farmland if irrigated Map Unit Composition Nunn, wet, and similar soils:90 percent Minor components:10 percent Estimates are based on observations, descriptions, and transects of the mapunit. Description of Nunn, Wet Setting Landform:Stream terraces, alluvial fans Landform position (three-dimensional):Base slope, tread Down-slope shape:Linear Across-slope shape:Linear Parent material:Alluvium Typical profile H1 - 0 to 10 inches: clay loam H2 - 10 to 47 inches: clay H3 - 47 to 60 inches: gravelly loam Properties and qualities Slope:1 to 3 percent Depth to restrictive feature:More than 80 inches Drainage class:Somewhat poorly drained Runoff class: Medium Capacity of the most limiting layer to transmit water (Ksat):Moderately low to moderately high (0.06 to 0.60 in/hr) Depth to water table:About 24 to 36 inches Frequency of flooding:NoneRare 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: High (about 9.9 inches) Interpretive groups Land capability classification (irrigated): 2w Land capability classification (nonirrigated): 3s Hydrologic Soil Group: C Ecological site: R067BZ902CO - Loamy Plains Hydric soil rating: No Minor Components Heldt Percent of map unit:6 percent Ecological site:R067BZ902CO - Loamy Plains Hydric soil rating: No Dacono Percent of map unit:3 percent Ecological site:R067BY042CO - Clayey Plains Hydric soil rating: No Mollic halaquepts Percent of map unit:1 percent Landform:Swales Hydric soil rating: Yes Custom Soil Resource Report 17 Custom Soil Resource Report 18 References American Association of State Highway and Transportation Officials (AASHTO). 2004. Standard specifications for transportation materials and methods of sampling and testing. 24th edition. American Society for Testing and Materials (ASTM). 2005. Standard classification of soils for engineering purposes. ASTM Standard D2487-00. Cowardin, L.M., V. Carter, F.C. Golet, and E.T. LaRoe. 1979. Classification of wetlands and deep-water habitats of the United States. U.S. Fish and Wildlife Service FWS/OBS-79/31. Federal Register. July 13, 1994. Changes in hydric soils of the United States. Federal Register. September 18, 2002. Hydric soils of the United States. Hurt, G.W., and L.M. Vasilas, editors. Version 6.0, 2006. Field indicators of hydric soils in the United States. National Research Council. 1995. Wetlands: Characteristics and boundaries. Soil Survey Division Staff. 1993. Soil survey manual. Soil Conservation Service. U.S. Department of Agriculture Handbook 18. http://www.nrcs.usda.gov/wps/portal/ nrcs/detail/national/soils/?cid=nrcs142p2_054262 Soil Survey Staff. 1999. Soil taxonomy: A basic system of soil classification for making and interpreting soil surveys. 2nd edition. Natural Resources Conservation Service, U.S. Department of Agriculture Handbook 436. http:// www.nrcs.usda.gov/wps/portal/nrcs/detail/national/soils/?cid=nrcs142p2_053577 Soil Survey Staff. 2010. Keys to soil taxonomy. 11th edition. U.S. Department of Agriculture, Natural Resources Conservation Service. http:// www.nrcs.usda.gov/wps/portal/nrcs/detail/national/soils/?cid=nrcs142p2_053580 Tiner, R.W., Jr. 1985. Wetlands of Delaware. U.S. Fish and Wildlife Service and Delaware Department of Natural Resources and Environmental Control, Wetlands Section. United States Army Corps of Engineers, Environmental Laboratory. 1987. Corps of Engineers wetlands delineation manual. Waterways Experiment Station Technical Report Y-87-1. United States Department of Agriculture, Natural Resources Conservation Service. National forestry manual. http://www.nrcs.usda.gov/wps/portal/nrcs/detail/soils/ home/?cid=nrcs142p2_053374 United States Department of Agriculture, Natural Resources Conservation Service. National range and pasture handbook. http://www.nrcs.usda.gov/wps/portal/nrcs/ detail/national/landuse/rangepasture/?cid=stelprdb1043084 19 United States Department of Agriculture, Natural Resources Conservation Service. National soil survey handbook, title 430-VI. http://www.nrcs.usda.gov/wps/portal/ nrcs/detail/soils/scientists/?cid=nrcs142p2_054242 United States Department of Agriculture, Natural Resources Conservation Service. 2006. Land resource regions and major land resource areas of the United States, the Caribbean, and the Pacific Basin. U.S. Department of Agriculture Handbook 296. http://www.nrcs.usda.gov/wps/portal/nrcs/detail/national/soils/? cid=nrcs142p2_053624 United States Department of Agriculture, Soil Conservation Service. 1961. Land capability classification. U.S. Department of Agriculture Handbook 210. http:// www.nrcs.usda.gov/Internet/FSE_DOCUMENTS/nrcs142p2_052290.pdf Custom Soil Resource Report 20 APPENDIX C – Standard Operating Procedures Enclave at Redwood Standard Operating Procedure (SOP) Minor Spill of Material (Paint, Stain, Solvent, Glue) (Less than Reportable Quantity) A. Purpose The purpose of this Standard Operating Procedure is to establish uniform procedures for clean up and disposal of material from a minor accidental spill of paint, stain, solvent, or glue. The procedures outlined in this SOP are applicable to all personnel working on site. Clean up and proper disposal of spilled material into the soil or onto the ground surface is required to ensure the material or contaminated soil does not enter or impact the waters of the state or the sanitary sewer system. B. Summary of the Method This procedure outlines the steps to be taken to prevent spilled material from impacting waters of the state and disposal of the resulting contaminated cleanup material. C. Definitions 1. Material Safety Data Sheet (MSDS). The standard industry list for a product detailing the chemical make-up, safety hazards, first aid, fire fighting, and spill cleanup measures, handling, storage, and disposal methods D. Health and Safety Warnings Many construction materials may be flammable, cause skin and eye irritation, and may be harmful or fatal if swallowed. Caution should be used during clean up operations. The MSDS for the spilled material should be consulted to ensure personnel safety during cleanup operations. E. Equipment and Supplies 1. Absorbent pads and booms 2. Hand equipment (shovels, brooms) 3. Waste containers (5 gallon buckets, drums) 4. Personal Protective Equipment F. Procedural Steps 1. Shut down all equipment operating in the area to prevent ignition of the spill. 2. Quickly control the spill by stopping or securing the spill source. This could be as simple as up-righting a tipped container or shutting down a piece of equipment producing the spill. 3. Contact the Responsible Person on site to enact the emergency response contact procedure. a. Responsible Person shall consult the MSDS for proper spill procedures and determination of Reportable Quantity for a spill. In the event the spilled quantity exceeds the reportable quantity the Responsible Person shall contact: 1. Call 911 for fire control if necessary. 2. Colorado Environmental Release and Incident Reporting Hotline (1-877-518-5608) 3. Fort Collins: (970) 416-2740 b. A release of any chemical, oil, petroleum product, sewage, etc., which may enter waters of the State of Colorado (which include surface water, ground water, and dry gullies or storm sewers leading to surface water) must be reported to CDPHE immediately (25-8-601 CRS). 4. Prevent migration of the spill by using an absorbent. This could include absorbent pads or booms, floor dry, cat litter, or dirt. The absorbent should be spread across the spill and along the downhill side to stop any flow. 5. If necessary to prevent the material from entering a storm inlet or manhole a dam of absorbent material should be placed in the g utter upstream from the inlet. 6. Begin cleanup of the spilled material and absorbents by placing the materials in 5 gallon, plastic buckets with lids or into a provided drum. 7. Continue cleanup until all spilled material and contaminated absorbents are removed. On a hard surface this should include sweeping of the area. Material spilled on dirt should be removed down to a level where discoloration of the soil has been removed. Water shall never be used to flush material off a surface. 8. All material shall be properly stored in a location designated by the Responsible Person on site. 9. The Responsible Person shall contact the Site Contracted Emergency Response and Disposal Co. to collect and properly dispose of the material. 10. Location of the spill will be documented on the Stormwater Maintenance Plan (SWMP) in the construction trailer. 11. Inspection of materials and equipment shall occur daily. G. Record Management All documentation from the incident, including incident report and incident disposal manifests, shall be maintained at NexMetro Communities. 5601 Old E Wadsworth Blvd, Suite 220, Arvada, CO 800002, for a period of 3 years from the date of the spill. H. After Incident Briefing All personnel involved in the incident shall attend a debriefing to determine the cause of the spill, procedures followed, and corrective actions to prevent future spills. All pertinent data shall be documented. All fin dings from the debriefing should be discussed at the next Safety Meeting. Fort Collins shall be notified. Standard Operating Procedure (SOP) Minor Fuel or Oil Spill (Less than 5 Gallons) A. Purpose The purpose of this Standard Operating Procedure is to establish a uniform procedure for clean up and disposal of material from a minor accidental spill of fuel (gasoline or diesel) or oil (hydraulic or motor). The procedures outlined in this SOP are applicable to all personnel working on site. Clean up and p roper disposal of spilled fuel or oil into the soil or onto the ground surface is required to ensure the material or contaminated soil does not enter or impact the waters of the state or the sanitary sewer system. B. Summary of the Method This procedure outlines the steps to be taken to prevent spilled fuel or oil from impacting waters of the state and disposal of the resulting contaminated cleanup material. C. Definitions 1. Material Safety Data Sheet (MSDS). The standard industry list for a product detailing the chemical make-up, safety hazards, first aid, fire fighting, and spill cleanup measures, handling, storage, and disposal methods D. Health and Safety Warnings Fuels and fuel oils may be extremely flammable, cause skin and eye irritation, and may be harmful or fatal if swallowed. Caution should be used during clean up operations. The MSDS for the spilled material should be consulted to ensure personnel safety during cleanup operations. E. Equipment and Supplies 1. Absorbent pads and booms 2. Hand equipment (shovels, brooms) 3. Waste containers (5 gallon buckets, drums) 4. Personal Protective Equipment F. Procedural Steps 1. Shut down all equipment operating in the area to prevent ignition of the spill. 2. Quickly control the spill by stopping or securing the spill source. This could be as simple as up-righting a tipped container or shutting down a piece of equipment producing the spill. 3. Contact the Responsible Person on site to enact the emergency response contact procedure. a. Responsible Person shall consult the MSDS for proper spill procedures and determination of Reportable Quantity for a spill. In the event the spilled quantity exceeds the reportable quantity the Responsible Person shall contact: 1. Call 911 for fire control if necessary. 2. Colorado Environmental Release and Incident Reporting Hotline (1-877-518-5608) 3. Fort Collins: (970) 416-2740 b. A release of any chemical, oil, petroleum product, sewage, etc., which may enter waters of the State of Colorado (which include surface water, ground water, and dry gullies or storm sewers leading to surface water) must be reported to CDPHE immediately (25-8-601 CRS). 4. Prevent migration of the spill by using an absorbent. This could include absorbent pads or booms, floor dry, cat litter, or dirt. The absorbent should be spread across the spill and along the downhill side to stop any flow. 5. If necessary to prevent the material from entering a storm inlet or manhole a dam of absorbent material should be placed in the gutter upstream from the inlet. 6. Begin cleanup of the spilled material and absorbents by placing the materials in 5 gallon, plastic buckets with lids or into a provided drum. 7. Continue cleanup until all spilled material and contaminated absorbents are removed. On a hard surface this should include sweeping of the area. Material spilled on dirt should be removed down to a level where discoloration of the soil has been removed. Water shall never be used to flush material off a surface. 8. All material shall be properly stored in a location designated by the Responsible Person on site. 9. The Responsible Person shall contact the Site Contracted Emergency Response and Disposal Co to collect and properly dispose of the material. 10. Location of the spill will be documented on the Stormwater Maintenance Plan (SWMP) in the construction trailer. 11. Inspection of materials and equipment shall occur daily. G. Record Management All documentation from the incident, including incident report and incident disposal manifests, shall be maintained at NexMetro Communities. 5601 Old E Wadsworth Blvd, Suite 220, Arvada, CO 800002, for a period of 3 years from the date of the spill. H. After Incident Briefing All personnel involved in the incident shall attend a debriefing to determine the cause of the spill, procedures followed, and corrective actions to preven t future spills. All pertinent data will be recorded. All findings from the debriefing should be discussed at the next Safety Meeting. Fort Collins shall be notified. Standard Operating Procedure (SOP) Small Fuel or Oil Spill (5 Gallons to Less than 25 Gallons) A. Purpose The purpose of this Standard Operating Procedure is to establish a uniform procedure for clean up and disposal of material from a small acc idental spill of fuel (gasoline or diesel) or oil (hydraulic, or motor). The procedures outlined in this SOP are applicable to all personnel working on Site. Clean up and proper disposal of spilled fuel or oil into the soil or onto the ground surface is required to ensure the material or contaminated soil do not enter or impact the waters of the state or the sanitary sewer system. B. Summary of the Method This procedure outlines the steps to be taken to prevent spilled fuel or oil from impacting waters of the state and disposal of the resulting contaminated cleanup material. C. Definitions 1. Material Safety Data Sheet (MSDS). The standard industry list for a product detailing the chemical make-up, safety hazards, first aid, fire fighting, and spill cleanup measures, handling, storage, and disposal methods D. Health and Safety Warnings Fuels and fuel oils may be extremely flammable, cause skin and eye irritation, and may be harmful or fatal if swallowed. Caution should be used during clean up operations. The MSDS for the spilled material should be consulted to ensure personnel safety during cleanup operations. E. Equipment and Supplies 1. Absorbent pads and booms 2. Hand equipment (shovels, brooms) 3. Waste containers (5 gallon buckets, drums) 4. Personal Protective Equipment F. Procedural Steps 1. Shut down all equipment operating in the area to prevent ignition of the spill. 2. Contact the Responsible Person on site to enact the emergency response contact procedure. a. The Responsible Person begins contacting Emergency Response Agencies. 1. For gasoline or diesel spill call 911 for fire control b. Responsible Person shall consult the MSDS for proper spill procedures and determination of Reportable Quantity for a spill. In the event the spilled quantity exceeds the reportable quantity the Responsible Person shall contact: 1. Call 911 for fire control if necessary. 2. Colorado Environmental Release and Incident Reporting Hotline (1-877-518-5608) 3. Fort Collins: (970) 416-2740 c. A release of any chemical, oil, petroleum product, sewage, etc., which may enter waters of the State of Colorado (which include surface water, ground water, and dry gullies or storm sewers leading to surface water) must be reported to CDPHE immediately (25-8-601 CRS). 3. Attempt to control the spill by stopping or securing the spill source. This could be as simple as up-righting a tipped container or shutting down a piece of equipment producing the spill. 4. Prevent migration of the spill by using an absorbent. This could include absorbent pads or booms, floor dry, cat litter, or dirt. The absorbent should be spread across the spill and along the downhill side to stop any flow. 5. If necessary to prevent the material from entering a storm inlet or manhole a dam of absorbent material should be placed in the gutter upstream from the inlet. 6. Begin cleanup of the spilled material and absorbents by placing the materials in 5 gallon, plastic buckets with lids or into a provided drum. 7. Continue cleanup until all spilled material and contaminated absorbents are removed. On a hard surface, this should include sweeping of the area. Material spilled on dirt should be removed down to a level where discoloration of the soil has been removed. Water shall never be used to flush material off a surface. 8. All material shall be properly stored in a location designated by the Responsible Person on site. 9. The Responsible Person shall contact the Site Contracted Emergency Response and Disposal Co. to collect and properly dispose of the material. 10. Location of the spill will be documented on the Stormwater Maintenance Plan (SWMP) in the construction trailer. 11. Inspection of materials and equipment shall occur daily. G. Record Management All documentation from the incident, including incident report and incident disposal manifests, shall be maintained at NexMetro Communities. 5601 Old E Wadsworth Blvd, Suite 220, Arvada, CO 800002, for a period of 3 years from the date of the spill. H. After Incident Briefing All personnel involved in the incident shall attend a debriefing to determine the cause of the spill, procedures followed, and corrective actions to prevent future spills. All pertinent data will be recorded. The CDPHE shall be notified of a major spill by a written follow up within five days of the incident. All findings from the debriefing should be discussed at the next Safety Meeting. Fort Collins shall be notified. Fort Collins will require one copy of any documents that are sent to the state. Standard Operating Procedure (SOP) Significant Fuel or Oil Spill (25 Gallons or More) A. Purpose The purpose of this Standard Operating Procedure is to establish a uniform procedure for clean up and disposal of material from a significant accidental spill of fuel (gasoline or diesel) or oil (hydraulic or motor). The procedures outlined in this SOP are applicable to all personnel working on site. Clean up and proper disposal of spilled fuel or oil into the soil or onto the ground surface is required to ensure the material or contaminated soil does not enter or impact the waters of the state or the sanitary sewer system. B. Summary of the Method This procedure outlines the steps to be taken to prevent spilled fuel or oil from impacting waters of the state and disposal of the resulting contaminated cleanup material. C. Definitions 1. Material Safety Data Sheet (MSDS). The standard industry list for a product detailing the chemical make-up, safety hazards, first aid, fire fighting, and spill cleanup measures, handling, storage, and disposal methods D. Health and Safety Warnings Fuels and fuel oils may be extremely flammable, cause skin and eye irritation, and may be harmful or fatal if swallowed. Caution should be used during clean up operations. The MSDS for the spilled material should be consulted to ensure personnel safety during cleanup operations. E. Equipment and Supplies 1. Absorbent pads and booms 2. Hand equipment (shovels, brooms) 3. Waste containers (5 gallon buckets, drums) 4. Personal Protective Equipment F. Procedural Steps 1. Shut down all equipment operating in the area to prevent ignition of the spill. 2. Ensure the safety of personnel in the area. If necessary, evacuate the area and wait for Emergency Response Personnel. 3. Contact the Chain of Command on site to enact the emergency response contact procedure. a. Responsible Person begins contacting Emergency Response Agencies. 1. Call 911 for fire control 2. Colorado Environmental Release and Incident Reporting Hotline (1-877-518-5608) 3. Fort Collins: (970) 416-2740 b. Responsible Person consults the MSDS for spill procedure 4. If it can be safely accomplished, attempt to control the spill by stopping or securing the spill source. 5. If it can be safely accomplished, attempt to prevent migration of the spill by using an absorbent. This could include absorbent pads or booms, floor dry, cat litter, or dirt. The absorbent should be spread along the downhill side to stop any flow. 6. If it can be safely accomplished, attempt to prevent the material from entering a storm inlet or manhole by constructing a dam of absorbent material in the gutter upstream from the inlet. 7. Emergency Response Personnel should handle stabilization of the spill and initial cleanup. 8. Final cleanup and disposal of contaminated material should be handled by the Site Contracted Emergency Response and Disposal Co. 9. Location of the spill will be documented on the Stormwater Maintenance Plan (SWMP) in the construction trailer. 10. Inspection of materials and equipment shall occur daily. G. Record Management All documentation from the incident, including incident report and incident disposal manifests, shall be maintained at NexMetro Communities. 5601 Old E Wadsworth Blvd, Suite 220, Arvada, CO 800002, for a period of 3 years from the date of the spill. H. After Incident Briefing All personnel involved in the incident shall attend a debriefing to determine the cause of the spill, procedures followed, and corrective actions to prevent future spills. All pertinent data will be recorded. The CDPHE shall be notified of a major spill by a written follow up within five days of the incident. All findings from the debriefing should be discussed at the next Safety Meeting. Fort Collins shall be notified. Fort Collins will require one copy of any documents that are sent to the state. APPENDIX D – Erosion Control Plan Fi l e p a t h : P: \ 2 0 2 0 \ 2 0 1 0 1 3 \ E N G I N E E R I N G \ E R O S I O N \ S W M P - P 1 - C O V E R . D W G L a y o u t : LA Y O U T 1 2 X R E F s : c d - d h i c l o g o , v i c m a p Pl o t t e d : MO N 0 4 / 0 8 / 2 4 4 : 5 0 : 4 9 P B y : Ra c h e l P a t t o n NO C H A N G E S A R E T O B E M A D E T O T H I S D R A W I N G W I T H O U T W R I T T E N P E R M I S S I O N O F H A R R I S K O C H E R S M I T H . Know what's below. Call before you dig. ® 1120 Lincoln Street, Suite 1000 Denver, Colorado 80203 P: 303.623.6300 F: 303.623.6311 HarrisKocherSmith.com ISSUE DATE: DATE REVISION COMMENTS PROJECT #:20101304-08-2024 ENCLAVE AT REDWOOD SITUATED IN THE SOUTHEAST QUARTER OF SECTION 1, TOWNSHIP 7 NORTH, RANGE 69 WEST OF THE SIXTH PRINCIPAL MERIDIAN CITY OF FORT COLLINS, COUNTY OF LARIMER, STATE OF COLORADO. TEMPORARY EROSION AND SEDIMENT CONTROL PLANS SCALE: 1" = VICINITY MAP 900' 1120 Lincoln Street, Suite 1000 Denver, Colorado 80203 P: 303.623.6300 F: 303.623.6311 HarrisKocherSmith.com SEQUENCING CHART BEST MANAGEMENT PRACTRICES (BMPs)MOBILIZATION DEMOLITION GRADING IMPORT/EXPORT OF MATERIALS UTILITIES INSTALLATION FLAT WORK INSTALLATION VERTICAL INSTALLATION LANDSCAPE DEMOBILIZATION FINAL STABILIZATION STRUCTURAL "INSTALLATION" SILT FENCE X X X X X X X CONCRETE WASHOUT AREA X X X X X CONSTRUCTION FENCE X X X X X X X X X INLET PROTECTION ANY EXISTING INLETS THAT COULD USE PROTECTING X X X X ROCK SOCKS X X X X X X X X STABILIZED STAGING AREA X X X X X X STOCKPILE PROTECTION X X X X X X VEGETATIVE TEMPORARY SEEDING AND MULCHING ANY TIME THE SITE WILL SIT DORMANT LONGER THAN 30 DAYS PERMANENT SEEDING AND MULCHING X X X ABBREVIATIONS AC ACRE AVE AVENUE BLDG BUILDING BLVD BOULEVARD C&G CURB & GUTTER CO CLEANOUT DIA DIAMETER E EAST, EASTING EL ELEVATION ESMT EASEMENT EX EXISTING FF FINISHED FLOOR FG FINISHED GRADE FH FIRE HYDRANT FLOW LINE FT FEET MH MANHOLE MIN MINIMUM N NORTH, NORTHING PROPERTY LINE ROW RIGHT-OF-WAY S SOUTH SAN SANITARY SF SQUARE FOOT, SINGLE FAMILY TYP TYPICAL UG UNDERGROUND Sheet List Table Sheet Number Sheet Title 1 COVER 2 NOTES 3 TESC PLAN - PHASE 1 4 TESC PLAN - PHASE 2 5 TESC PLAN - PHASE 3 6 TESC PLAN - PHASE 4 7 DETAILS 7 DETAILS 9 DETAILS 10 DETAILS CALCULATIONS CHART TOTAL DISTURBED AREA 32.96 ACRES TOTAL "ONSITE" AREA OF DISTURBANCE 28.37 ACRES TOTAL "OFFSITE" AREA OF DISTURBANCE 4.59 ACRES TOTAL STORAGE/STAGING AREA 19.14 ACRES TOTAL HAUL ROADS AREA CONSTRUCTION VEHICLE TRAFFIC AREA EST. PERCENT OF PROJECT AREA EXPOSED N/A EST. PERCENT VEGETATIVE COVER 98%DENSITY EXISTING SOIL TYPE LOVELAND CLAY LOAM, NUNN CLAY LOAM, AND NUNN CLAY LOAM (WET) GROUNDWATER DEPTH 7-17 FEET NUMBER OF PHASES W/ PROJECT 1 TOTAL VOLUME OF IMPORTED (+) / EXPORTED (-) MATERIALS 0 CUBIC YDS. TOTAL AREA OF STOCKPILLING OR FILL OR BORROW AREAS OFF SITE 0 ACRES STEEPEST SLOPE 3:1 H:V DISTANCE FROM A RIPARIAN AREA OR SENSITIVE AREA 10 FEET P R O F ESSIONA L E N G I NEER CO L O R A D O LICEN S E D 54450 PA T T O N C. RAC H E L SHEET NUMBER ISSUE DATE: DATE REVISION COMMENTS DESIGNED BY: CHECKED BY: DRAWN BY: PROJECT #: 1120 Lincoln Street, Suite 1000 Denver, Colorado 80203 P: 303.623.6300 F: 303.623.6311 HarrisKocherSmith.com Know what's below. Call before you dig. ® FI L E P A T H : P : \ 2 0 2 0 \ 2 0 1 0 1 3 \ E N G I N E E R I N G \ E R O S I O N \ S W M P - P 1 - C O V E R . D W G L A Y O U T : L A Y O U T 2 2 X R E F s : c d - d h i c l o g o , v i c m a p PL O T T E D : M O N 0 4 / 0 8 / 2 4 4 : 5 0 : 5 1 P B Y : R A C H E L P A T T O N 201013 ENCLAVE AT REDWOOD NOTES EC2 194 OF 203 04-08-2024 CLH RCP CLH NO C H A N G E S A R E T O B E M A D E T O T H I S D R A W I N G W I T H O U T W R I T T E N P E R M I S S I O N O F H A R R I S K O C H E R S M I T H . ’ “” ’ ’ ’ “” P R O F ESSIONA L E N G I NEER CO L O R A D O LICEN S E D 54450 PA T T O N C. RAC H E L TH THTH TH TH TH ST SS ST VTC RS RS IP IP IP LOC CF SF LOC CF SF SS CWA SSA CF SF CF SF SHEET NUMBER ISSUE DATE: DATE REVISION COMMENTS DESIGNED BY: CHECKED BY: DRAWN BY: PROJECT #: 1120 Lincoln Street, Suite 1000 Denver, Colorado 80203 P: 303.623.6300 F: 303.623.6311 HarrisKocherSmith.com Know what's below. Call before you dig. ® FI L E P A T H : P : \ 2 0 2 0 \ 2 0 1 0 1 3 \ E N G I N E E R I N G \ E R O S I O N \ S W M P - S T O C K P I L E . D W G L A Y O U T : L A Y O U T 1 11 X R E F s : c d - d h i c l o g o , e - b a s e , e - l e g a l , e - o f f s i t e , e - u t i l , k e y m a p - o f f s i t e , p - b a s e [ U ] , p - l e g a l [ U ] , p - s a n i t a r y [ U ] , p - w a t e r [ U ] , s t a m p - s w m p PL O T T E D : M O N 0 4 / 0 8 / 2 4 6 : 0 1 : 4 0 P B Y : R A C H E L P A T T O N 201013 ENCLAVE AT REDWOOD TESC PLAN - PHASE 1 PRELIMINARY STOCKPILE EC3 195 OF 203 04-08-2024 CLH RCP CLH NO C H A N G E S A R E T O B E M A D E T O T H I S D R A W I N G W I T H O U T W R I T T E N P E R M I S S I O N O F H A R R I S K O C H E R S M I T H . 0 SCALE: 1" = 100 100 200 100' LOC CF SF VTC IP RS SP SS CWA SSA CF CF SF SF P R O F ESSIONA L E N G I NEER CO L O R A D O LICEN S E D 54450 PA T T O N C. RAC H E L TH THTH TH TH TH ST SS ST IP IP IP IP IP IP IP IP IP IP IP IP IP IP IP IP IP VTC RS RS IP IP IP LOC CF SF LOC CF SF SS CWA SSA CF SF SHEET NUMBER ISSUE DATE: DATE REVISION COMMENTS DESIGNED BY: CHECKED BY: DRAWN BY: PROJECT #: 1120 Lincoln Street, Suite 1000 Denver, Colorado 80203 P: 303.623.6300 F: 303.623.6311 HarrisKocherSmith.com Know what's below. Call before you dig. ® FI L E P A T H : P : \ 2 0 2 0 \ 2 0 1 0 1 3 \ E N G I N E E R I N G \ E R O S I O N \ S W M P - I N T E R I M . D W G L A Y O U T : L A Y O U T 1 11 X R E F s : _ l i m i t s o f g r a d i n g , c d - d h i c l o g o , c d - s t a m p _ r c p , e - b a s e , e - l e g a l , e - u t i l , k e y m a p - o f f s i t e [ U ! ] , p - b a s e , p - l e g a l , p - u t i l , s w m p - s t o c k p i l e [ ! ] PL O T T E D : M O N 0 4 / 0 8 / 2 4 6 : 2 4 : 2 0 P B Y : R A C H E L P A T T O N 201013 ENCLAVE AT REDWOOD TESC PLAN - PHASE 2 EC4 196 OF 203 04-08-2024 CLH RCP CLH NO C H A N G E S A R E T O B E M A D E T O T H I S D R A W I N G W I T H O U T W R I T T E N P E R M I S S I O N O F H A R R I S K O C H E R S M I T H . 0 SCALE: 1" = 100 100 200 100' LOC CF SF VTC IP RS SP SS P R O F ESSIONA L E N G I NEER CO L O R A D O LICEN S E D 54450 PA T T O N C. RAC H E L TH THTH TH TH TH ST SS ST DSDSDSDSDSDS DS DS DS DS DS DSDSDS DSDS DS DS DS DS DS DS DS DS DS DSDSDSDS DS DS DS DS DS DS DS DS DS DS DS DS DS DS DS DS DS DS DS DS DS DS DS DS DS DS DS DS DS DS D S DS DS DS DS DS DS DS DS DS DS DS DS DS DS DS DS DS DS DS DS DS DS DS DS DS DS DS DS DS DS DS DS DS DSDSDSDSDSDSDSDSDSDSDSDSDSDSDS DS DS DS DS DS DS DS DS DS DS DS DS DS DS DS DS DS DS DS DS DS DS DS DS DS DS DS DS DS DS DS DS DS DS DSDSDSDSDSDSDSDSDSRAMP DS DS DS DS DS DS DS EV CH A R G I N G RAMP R A M P EV CH A R G I N G O N L Y DS DS DS DS DS DS DS DS DS DS DS DS DS DS DS D S DS DS DS DS DS DS DS DSDSDS DS DS DS DS DS DS DS DS DSDSDS DS DS DS DS DS DS DS DS DS DS DS DS DS DS DS DS DS DS DS DS DS DS DS DS DS DS DS DS DS DS DS DS DS DSDSDS DS DS DS DS DSDSDS DS DS DS DS DS DS DS DS DSDSDS DS DS DS DS DS DS DS DSDSDSDS DS DS DS D S DS DS DS DS DS DS DS DS DS DS DS DS DS DS DS DS DS DS DSDSDS DS DSDSDSDSDSDSDSDSDSDSDSDSDSDSDSDS DSD S DS DS DS DS DS DS DS DS DS DS DS DS DS DS DSDSDSDSDSDSDSDSDSDSDSDSDSDSDSDS DS DS DS DS DS DS D S DS DS DS DS DS DS DS DS DS DS DSDSDSDSDS DS DS DS DS DS DS DS DSDS DS DS DS DS DS DS DSDS DS DS DS DS DS DS DS DS DS DS DS DS DS DS DS DS DS DS DS DS DS DS DS DS DS DS DS DS DS DS DS DS DS DS DS DS DS DS DS DS DSDS DS DS DS DS DS DS DS DS DS DS DS DS DS DS DS DS DS DS DS DS DS DSDS DS DS DS DS DS DS DS DS DS DS DS DS DS DS DS DS DS DS DS DS DS DS DS DS DS DS DS DS DS DS DS DS DS DS DS DS DS DS DS DS DS DS DS DS DS DS DS DS DS DS DS DS DS DS DS DS DS DS DS DS DS DS DS DS DS DS DS DS D S DS DS DS D S D S DS DS DSDSDSDSDSDSDSDSDSDSDSDSDS DS DS DS DS DS D S DS DS DS DS DS DS DS DS DS DS DS DS DS DS DSDS DSDS DS DS DS DS DS DS DS DS DS DS DS DS DS DS DS DS DS RAMP RAMP RAMP RAMP DS DS DS DS DS DS DS DSDS DS DS IP IP IP IP IP IP IP IP IP IP IP IP IP IP IP IP IP SM SM SM SM SM SM SM SM SM SM VTC RS RS IP IP IP LOC CF SF LOC CF SF SS CWA SSA CF SF 0 SCALE: 1" = 100 100 200 100' LOC SM SHEET NUMBER ISSUE DATE: DATE REVISION COMMENTS DESIGNED BY: CHECKED BY: DRAWN BY: PROJECT #: 1120 Lincoln Street, Suite 1000 Denver, Colorado 80203 P: 303.623.6300 F: 303.623.6311 HarrisKocherSmith.com Know what's below. Call before you dig. ® FI L E P A T H : P : \ 2 0 2 0 \ 2 0 1 0 1 3 \ E N G I N E E R I N G \ E R O S I O N \ S W M P - F I N A L . D W G L A Y O U T : L A Y O U T 1 12 X R E F s : _ l i m i t s o f g r a d i n g , c d - d h i c l o g o , c d - s t a m p _ r c p , e - b a s e , e - l e g a l , e - u t i l , k e y m a p - o f f s i t e [ U ! ] , p - b a s e , p - l e g a l , p - u t i l , s w m p - i n t e r i m [ ! ] , s w m p - s t o c k p i l e [ ! ] PL O T T E D : M O N 0 4 / 0 8 / 2 4 6 : 2 5 : 3 1 P B Y : R A C H E L P A T T O N 201013 ENCLAVE AT REDWOOD TESC PLAN - PHASE 3 EC5 197 OF 203 04-08-2024 MJS RCP MJS NO C H A N G E S A R E T O B E M A D E T O T H I S D R A W I N G W I T H O U T W R I T T E N P E R M I S S I O N O F H A R R I S K O C H E R S M I T H . P R O F ESSIONA L E N G I NEER CO L O R A D O LICEN S E D 54450 PA T T O N C. RAC H E L TH THTH TH TH TH ST SS ST DSDSDSDSDSDS DS DS DS DS DS DSDSDS DSDS DS DS DS DS DS DS DS DS DS DSDSDSDS DS DS DS DS DS DS DS DS DS DS DS DS DS DS DS DS DS DS DS DS DS DS DS DS DS DS DS DS DS DS D S DS DS DS DS DS DS DS DS DS DS DS DS DS DS DS DS DS DS DS DS DS DS DS DS DS DS DS DS DS DS DS DS DS DSDSDSDSDSDSDSDSDSDSDSDSDSDSDS DS DS DS DS DS DS DS DS DS DS DS DS DS DS DS DS DS DS DS DS DS DS DS DS DS DS DS DS DS DS DS DS DS DS DSDSDSDSDSDSDSDSDSRAMP DS DS DS DS DS DS DS EV CH A R G I N G RAMP R A M P EV CH A R G I N G O N L Y DS DS DS DS DS DS DS DS DS DS DS DS DS DS DS D S DS DS DS DS DS DS DS DSDSDS DS DS DS DS DS DS DS DS DSDSDS DS DS DS DS DS DS DS DS DS DS DS DS DS DS DS DS DS DS DS DS DS DS DS DS DS DS DS DS DS DS DS DS DS DSDSDS DS DS DS DS DSDSDS DS DS DS DS DS DS DS DS DSDSDS DS DS DS DS DS DS DS DSDSDSDS DS DS DS D S DS DS DS DS DS DS DS DS DS DS DS DS DS DS DS DS DS DS DSDSDS DS DSDSDSDSDSDSDSDSDSDSDSDSDSDSDSDS DSD S DS DS DS DS DS DS DS DS DS DS DS DS DS DS DSDSDSDSDSDSDSDSDSDSDSDSDSDSDSDS DS DS DS DS DS DS D S DS DS DS DS DS DS DS DS DS DS DSDSDSDSDS DS DS DS DS DS DS DS DSDS DS DS DS DS DS DS DSDS DS DS DS DS DS DS DS DS DS DS DS DS DS DS DS DS DS DS DS DS DS DS DS DS DS DS DS DS DS DS DS DS DS DS DS DS DS DS DS DS DSDS DS DS DS DS DS DS DS DS DS DS DS DS DS DS DS DS DS DS DS DS DS DSDS DS DS DS DS DS DS DS DS DS DS DS DS DS DS DS DS DS DS DS DS DS DS DS DS DS DS DS DS DS DS DS DS DS DS DS DS DS DS DS DS DS DS DS DS DS DS DS DS DS DS DS DS DS DS DS DS DS DS DS DS DS DS DS DS DS DS DS DS D S DS DS DS D S D S DS DS DSDSDSDSDSDSDSDSDSDSDSDSDS DS DS DS DS DS D S DS DS DS DS DS DS DS DS DS DS DS DS DS DS DSDS DSDS DS DS DS DS DS DS DS DS DS DS DS DS DS DS DS DS DS RAMP RAMP RAMP RAMP DS DS DS DS DS DS DS DSDS DS DS 0 SCALE: 1" = 100 100 200 100' SHEET NUMBER ISSUE DATE: DATE REVISION COMMENTS DESIGNED BY: CHECKED BY: DRAWN BY: PROJECT #: 1120 Lincoln Street, Suite 1000 Denver, Colorado 80203 P: 303.623.6300 F: 303.623.6311 HarrisKocherSmith.com Know what's below. Call before you dig. ® FI L E P A T H : P : \ 2 0 2 0 \ 2 0 1 0 1 3 \ E N G I N E E R I N G \ E R O S I O N \ S W M P - F I N A L S T A B I L I Z A T I O N . D W G L A Y O U T : L A Y O U T 1 12 X R E F s : c d - d h i c l o g o , e - b a s e , e - l e g a l , e - o f f s i t e , e - u t i l , k e y m a p - o f f s i t e , p - b a s e , p - l e g a l , p - s a n i t a r y [ U ] , p - u t i l , s t a m p - s w m p , s w m p - s t o c k p i l e PL O T T E D : M O N 0 4 / 0 8 / 2 4 6 : 0 2 : 1 6 P B Y : R A C H E L P A T T O N 201013 ENCLAVE AT REDWOOD TESC PLAN - PHASE 4 EC6 198 OF 203 04-08-2024 MJS RCP MJS NO C H A N G E S A R E T O B E M A D E T O T H I S D R A W I N G W I T H O U T W R I T T E N P E R M I S S I O N O F H A R R I S K O C H E R S M I T H . P R O F ESSIONA L E N G I NEER CO L O R A D O LICEN S E D 54450 PA T T O N C. RAC H E L SHEET NUMBER ISSUE DATE: DATE REVISION COMMENTS DESIGNED BY: CHECKED BY: DRAWN BY: PROJECT #: 1120 Lincoln Street, Suite 1000 Denver, Colorado 80203 P: 303.623.6300 F: 303.623.6311 HarrisKocherSmith.com Know what's below. Call before you dig. ® FI L E P A T H : P : \ 2 0 2 0 \ 2 0 1 0 1 3 \ E N G I N E E R I N G \ E R O S I O N \ S W M P - S T O C K P I L E - D E T A I L S . D W G L A Y O U T : L A Y O U T 1 NO X R E F s PL O T T E D : M O N 0 4 / 0 8 / 2 4 4 : 5 1 : 2 5 P B Y : R A C H E L P A T T O N 201013 ENCLAVE AT REDWOOD TESC - DETAILS EC7 199 OF 203 04-08-2024 CLH RCP CLH NO C H A N G E S A R E T O B E M A D E T O T H I S D R A W I N G W I T H O U T W R I T T E N P E R M I S S I O N O F H A R R I S K O C H E R S M I T H . P R O F ESSIONA L E N G I NEER CO L O R A D O LICEN S E D 54450 PA T T O N C. RAC H E L SHEET NUMBER ISSUE DATE: DATE REVISION COMMENTS DESIGNED BY: CHECKED BY: DRAWN BY: PROJECT #: 1120 Lincoln Street, Suite 1000 Denver, Colorado 80203 P: 303.623.6300 F: 303.623.6311 HarrisKocherSmith.com Know what's below. Call before you dig. ® FI L E P A T H : P : \ 2 0 2 0 \ 2 0 1 0 1 3 \ E N G I N E E R I N G \ E R O S I O N \ S W M P - S T O C K P I L E - D E T A I L S . D W G L A Y O U T : L A Y O U T 2 NO X R E F s PL O T T E D : M O N 0 4 / 0 8 / 2 4 4 : 5 1 : 2 6 P B Y : R A C H E L P A T T O N 201013 ENCLAVE AT REDWOOD TESC - DETAILS EC8 200 OF 203 04-08-2024 CLH RCP CLH NO C H A N G E S A R E T O B E M A D E T O T H I S D R A W I N G W I T H O U T W R I T T E N P E R M I S S I O N O F H A R R I S K O C H E R S M I T H . P R O F ESSIONA L E N G I NEER CO L O R A D O LICEN S E D 54450 PA T T O N C. RAC H E L SHEET NUMBER ISSUE DATE: DATE REVISION COMMENTS DESIGNED BY: CHECKED BY: DRAWN BY: PROJECT #: 1120 Lincoln Street, Suite 1000 Denver, Colorado 80203 P: 303.623.6300 F: 303.623.6311 HarrisKocherSmith.com Know what's below. Call before you dig. ® FI L E P A T H : P : \ 2 0 2 0 \ 2 0 1 0 1 3 \ E N G I N E E R I N G \ E R O S I O N \ S W M P - S T O C K P I L E - D E T A I L S . D W G L A Y O U T : L A Y O U T 3 NO X R E F s PL O T T E D : M O N 0 4 / 0 8 / 2 4 4 : 5 1 : 2 8 P B Y : R A C H E L P A T T O N 201013 ENCLAVE AT REDWOOD TESC - DETAILS EC9 201 OF 203 04-08-2024 CLH RCP CLH NO C H A N G E S A R E T O B E M A D E T O T H I S D R A W I N G W I T H O U T W R I T T E N P E R M I S S I O N O F H A R R I S K O C H E R S M I T H . P R O F ESSIONA L E N G I NEER CO L O R A D O LICEN S E D 54450 PA T T O N C. RAC H E L SHEET NUMBER ISSUE DATE: DATE REVISION COMMENTS DESIGNED BY: CHECKED BY: DRAWN BY: PROJECT #: 1120 Lincoln Street, Suite 1000 Denver, Colorado 80203 P: 303.623.6300 F: 303.623.6311 HarrisKocherSmith.com Know what's below. Call before you dig. ® FI L E P A T H : P : \ 2 0 2 0 \ 2 0 1 0 1 3 \ E N G I N E E R I N G \ E R O S I O N \ S W M P - S T O C K P I L E - D E T A I L S . D W G L A Y O U T : L A Y O U T 4 NO X R E F s PL O T T E D : M O N 0 4 / 0 8 / 2 4 4 : 5 1 : 3 0 P B Y : R A C H E L P A T T O N 201013 ENCLAVE AT REDWOOD TESC - DETAILS EC10 202 OF 203 04-08-2024 CLH RCP CLH NO C H A N G E S A R E T O B E M A D E T O T H I S D R A W I N G W I T H O U T W R I T T E N P E R M I S S I O N O F H A R R I S K O C H E R S M I T H . P R O F ESSIONA L E N G I NEER CO L O R A D O LICEN S E D 54450 PA T T O N C. RAC H E L SHEET NUMBER ISSUE DATE: DATE REVISION COMMENTS DESIGNED BY: CHECKED BY: DRAWN BY: PROJECT #: 1120 Lincoln Street, Suite 1000 Denver, Colorado 80203 P: 303.623.6300 F: 303.623.6311 HarrisKocherSmith.com Know what's below. Call before you dig. ® FI L E P A T H : P : \ 2 0 2 0 \ 2 0 1 0 1 3 \ E N G I N E E R I N G \ E R O S I O N \ S W M P - S T O C K P I L E - D E T A I L S . D W G L A Y O U T : L A Y O U T 5 NO X R E F s PL O T T E D : M O N 0 4 / 0 8 / 2 4 4 : 5 1 : 3 1 P B Y : R A C H E L P A T T O N 201013 ENCLAVE AT REDWOOD TESC - DETAILS EC11 203 OF 203 04-08-2024 CLH RCP CLH NO C H A N G E S A R E T O B E M A D E T O T H I S D R A W I N G W I T H O U T W R I T T E N P E R M I S S I O N O F H A R R I S K O C H E R S M I T H . P R O F ESSIONA L E N G I NEER CO L O R A D O LICEN S E D 54450 PA T T O N C. RAC H E L