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HomeMy WebLinkAboutOWTS DesignJune 8, 2021 Specialty Restaurants Corporation via email to: BTallichet@SRCMail.com Re: Shop/Storage Building, Hayward Ranch, OWTS [Z&A: 23130.01] Mr. Tallichet: This report is regarding the proposed OWTS to be located on your property near Parachute, aka Garfield County Parcel Number 240926200165. Investigations and design were performed by personnel from Zancanella & Associates, supplemented by information from the NRCS Soil Survey for the area. Generally, the site and surrounding area consists of a very thin (one to two inches) layer of topsoil over alluvial deposits of stony to very stony loam. See the infiltrative area calculations attached to this report and included on Sheet 1 of the OWTS drawing. There are no wells within 100 feet of the proposed system. The closest distance from the absorption area to a property line is in excess of 200 feet. Other items included in Tables 7-1 and 7-2 of the County OWTS Regulations can be derived from the drawings. A drawing showing the location of the proposed OWTS on the parcel, an elevation benchmark, and other pertinent information is attached to this report. No limiting layers or features were found nor expected. However, there was a somewhat harder layer at approximately a depth of two feet. Therefore, as a precaution, we recommend that the base of the Infiltrator units be set below this layer. No groundwater was encountered and is not expected to be near the ground surface at other times of the year. The proposed site is in excess of 1000 feet southerly of the 100 year flood plain for the Colorado River, as shown on the attached exhibit. The only construction/operational issue foreseen would be if the water table was high enough at the desired time of construction to present a problem. The easiest solution would be to wait until the water table went down enough to allow construction traffic. Otherwise, it would also be possible to remove the topsoil material and replace with pit run material that would sustain construction traffic. Garco Env. Health June 8, 2021 Page 2 If you have any questions, or need additional information, please contact our office at (970) 945-5700. Zancanella & Associates Inc. Tim Beck Timothy P. Beck, P.E. https://zanda5700.sharepoint.com/Zdrive/23000/23130 Hayward Ranch/ISDS/ISDS Report letter-shop-storage bldg.doc 7S 96W26272223BUREAU OF LAND MANAGEMENTBUREAU OF LAND MANAGEMENTBUREAU OF LAND MANAGEMENTBUREAU OF LAND MANAGEMENTBUREAU OF LAND MANAGEMENTtexttexttexttexttextSTRAIT BOTTOM RANCH LLLPSTRAIT BOTTOM RANCH LLLPSTRAIT BOTTOM RANCH LLLPSTRAIT BOTTOM RANCH LLLPSTRAIT BOTTOM RANCH LLLPSTRAIT BOTTOM RANCH LLLPSTRAIT BOTTOM RANCH LLLPSTRAIT BOTTOM RANCH LLLPSTRAIT BOTTOM RANCH LLLPSTRAIT BOTTOM RANCH LLLPSTRAIT BOTTOM RANCH LLLPSTRAIT BOTTOM RANCH LLLPSTRAIT BOTTOM RANCH LLLPSTRAIT BOTTOM RANCH LLLPSTRAIT BOTTOM RANCH LLLPLANTZ, RANDALL S & PAMELA ALANTZ, RANDALL S & PAMELA ALANTZ, RANDALL S & PAMELA ALANTZ, RANDALL S & PAMELA ALANTZ, RANDALL S & PAMELA ASTRAIT BOTTOM RANCH LLLPSTRAIT BOTTOM RANCH LLLPSTRAIT BOTTOM RANCH LLLPSTRAIT BOTTOM RANCH LLLPSTRAIT BOTTOM RANCH LLLPSTRAIT BOTTOM RANCH LLLPSTRAIT BOTTOM RANCH LLLPSTRAIT BOTTOM RANCH LLLPSTRAIT BOTTOM RANCH LLLPSTRAIT BOTTOM RANCH LLLPLEDEZMA, MARIANO & SUSAN MARQUEZLEDEZMA, MARIANO & SUSAN MARQUEZLEDEZMA, MARIANO & SUSAN MARQUEZLEDEZMA, MARIANO & SUSAN MARQUEZLEDEZMA, MARIANO & SUSAN MARQUEZSTRAIT BOTTOM RANCH LLLPSTRAIT BOTTOM RANCH LLLPSTRAIT BOTTOM RANCH LLLPSTRAIT BOTTOM RANCH LLLPSTRAIT BOTTOM RANCH LLLPLEDEZMA, MARIANO & SUSAN MLEDEZMA, MARIANO & SUSAN MLEDEZMA, MARIANO & SUSAN MLEDEZMA, MARIANO & SUSAN MLEDEZMA, MARIANO & SUSAN M5 - MILE RANCH, LLC5 - MILE RANCH, LLC5 - MILE RANCH, LLC5 - MILE RANCH, LLC5 - MILE RANCH, LLCSTRAIT BOTTOM RANCH LLLPSTRAIT BOTTOM RANCH LLLPSTRAIT BOTTOM RANCH LLLPSTRAIT BOTTOM RANCH LLLPSTRAIT BOTTOM RANCH LLLPSMALLWOOD, JANET A, WRIGHT, JOAN E & KELLY GULCH J LLCSMALLWOOD, JANET A, WRIGHT, JOAN E & KELLY GULCH J LLCSMALLWOOD, JANET A, WRIGHT, JOAN E & KELLY GULCH J LLCSMALLWOOD, JANET A, WRIGHT, JOAN E & KELLY GULCH J LLCSMALLWOOD, JANET A, WRIGHT, JOAN E & KELLY GULCH J LLC5 - MILE RANCH, LLC5 - MILE RANCH, LLC5 - MILE RANCH, LLC5 - MILE RANCH, LLC5 - MILE RANCH, LLC5 - MILE RANCH, LLC5 - MILE RANCH, LLC5 - MILE RANCH, LLC5 - MILE RANCH, LLC5 - MILE RANCH, LLC5 - MILE RANCH, LLC5 - MILE RANCH, LLC5 - MILE RANCH, LLC5 - MILE RANCH, LLC5 - MILE RANCH, LLCSTRAIT BOTTOM RANCH LLLPSTRAIT BOTTOM RANCH LLLPSTRAIT BOTTOM RANCH LLLPSTRAIT BOTTOM RANCH LLLPSTRAIT BOTTOM RANCH LLLPFRAC TECH SERVICES LLCFRAC TECH SERVICES LLCFRAC TECH SERVICES LLCFRAC TECH SERVICES LLCFRAC TECH SERVICES LLC5 - MILE RANCH, LLC5 - MILE RANCH, LLC5 - MILE RANCH, LLC5 - MILE RANCH, LLC5 - MILE RANCH, LLCFRAC TECH SERVICES LLCFRAC TECH SERVICES LLCFRAC TECH SERVICES LLCFRAC TECH SERVICES LLCFRAC TECH SERVICES LLCFRAC TECH SERVICES LLCFRAC TECH SERVICES LLCFRAC TECH SERVICES LLCFRAC TECH SERVICES LLCFRAC TECH SERVICES LLCBOSELY SPRING CREEK RANCH LLCBOSELY SPRING CREEK RANCH LLCBOSELY SPRING CREEK RANCH LLCBOSELY SPRING CREEK RANCH LLCBOSELY SPRING CREEK RANCH LLCZIEGLER, SCOTTZIEGLER, SCOTTZIEGLER, SCOTTZIEGLER, SCOTTZIEGLER, SCOTTCAERUS PICEANCE LLCCAERUS PICEANCE LLCCAERUS PICEANCE LLCCAERUS PICEANCE LLCCAERUS PICEANCE LLCFRAC TECH SERVICES LLCFRAC TECH SERVICES LLCFRAC TECH SERVICES LLCFRAC TECH SERVICES LLCFRAC TECH SERVICES LLC5 - MILE RANCH, LLC5 - MILE RANCH, LLC5 - MILE RANCH, LLC5 - MILE RANCH, LLC5 - MILE RANCH, LLCPATTERSON, WILLIAM & POWER, RODNEY &PATTERSON, WILLIAM & POWER, RODNEY &PATTERSON, WILLIAM & POWER, RODNEY &PATTERSON, WILLIAM & POWER, RODNEY &PATTERSON, WILLIAM & POWER, RODNEY &5 - MILE RANCH, LLC5 - MILE RANCH, LLC5 - MILE RANCH, LLC5 - MILE RANCH, LLC5 - MILE RANCH, LLCTHROM, DONALD RTHROM, DONALD RTHROM, DONALD RTHROM, DONALD RTHROM, DONALD RZ:\23000\23130 Hayward Ranch\dwg\GARCO-Base-CO83-CF-tpb-v2017-properties-floodpln.dwg, 9/30/2020 3:08:44 PM No Wells within 100 feetWells arenear riverSite 1000 GAL.SEPTIC TANKDISTRIBUTION BOXFOUR ROWS OF 11 UNITS44 UNITS TOTALINSPECTION WELL (TYP.)SHOP - STORAGEBUILDING (EXISTING)SITEC:\Users\Tim.ZA-ENGINEERING\Zancanella and Associates\zanda - Zdrive\23000\23130 Hayward Ranch\ISDS\dwg\GARCO-Base-CO83-CF-with ISDS.dwg, 6/14/2021 3:30:22 PM 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 Rifle Area, Colorado, Parts of Garfield and Mesa Counties S26, T7S, 96W, 6th P.M. Natural Resources Conservation Service September 30, 2020 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 Soil Map..................................................................................................................5 Soil Map................................................................................................................6 Legend..................................................................................................................7 Map Unit Legend..................................................................................................9 Map Unit Descriptions..........................................................................................9 Rifle Area, Colorado, Parts of Garfield and Mesa Counties............................11 34—Ildefonso stony loam, 25 to 45 percent slopes.....................................11 References............................................................................................................13 4 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. 5 6 Custom Soil Resource Report Soil Map 43663104366330436635043663704366390436641043664304366450436647043663304366350436637043663904366410436643043664504366470751250 751270 751290 751310 751330 751350 751370 751390 751410 751430 751450 751470 751250 751270 751290 751310 751330 751350 751370 751390 751410 751430 751450 751470 751490 39° 24' 40'' N 108° 4' 54'' W39° 24' 40'' N108° 4' 44'' W39° 24' 35'' N 108° 4' 54'' W39° 24' 35'' N 108° 4' 44'' WN Map projection: Web Mercator Corner coordinates: WGS84 Edge tics: UTM Zone 12N WGS84 0 50 100 200 300 Feet 0 15 30 60 90 Meters Map Scale: 1:1,130 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: Rifle Area, Colorado, Parts of Garfield and Mesa Counties Survey Area Data: Version 13, Jun 5, 2020 Soil map units are labeled (as space allows) for map scales 1:50,000 or larger. Date(s) aerial images were photographed: Dec 31, 2009—Oct 12, 2017 The orthophoto or other base map on which the soil lines were compiled and digitized probably differs from the background Custom Soil Resource Report 7 MAP LEGEND MAP INFORMATION imagery displayed on these maps. As a result, some minor shifting of map unit boundaries may be evident. Custom Soil Resource Report 8 Map Unit Legend Map Unit Symbol Map Unit Name Acres in AOI Percent of AOI 34 Ildefonso stony loam, 25 to 45 percent slopes 6.3 100.0% Totals for Area of Interest 6.3 100.0% 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. 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. Custom Soil Resource Report 9 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 10 Rifle Area, Colorado, Parts of Garfield and Mesa Counties 34—Ildefonso stony loam, 25 to 45 percent slopes Map Unit Setting National map unit symbol: jny0 Elevation: 5,000 to 6,500 feet Farmland classification: Not prime farmland Map Unit Composition Ildefonso and similar soils:90 percent Minor components:10 percent Estimates are based on observations, descriptions, and transects of the mapunit. Description of Ildefonso Setting Landform:Alluvial fans, valley sides, breaks Down-slope shape:Linear, convex Across-slope shape:Linear, convex Parent material:Mixed alluvium derived from basalt Typical profile H1 - 0 to 8 inches: stony loam H2 - 8 to 60 inches: very stony loam Properties and qualities Slope:25 to 45 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 high to high (0.60 to 6.00 in/hr) Depth to water table:More than 80 inches Frequency of flooding:None Frequency of ponding:None Calcium carbonate, maximum content:35 percent Maximum salinity:Nonsaline to slightly saline (0.0 to 4.0 mmhos/cm) Available water capacity:Low (about 5.1 inches) Interpretive groups Land capability classification (irrigated): None specified Land capability classification (nonirrigated): 7e Hydrologic Soil Group: A Hydric soil rating: No Minor Components Potts Percent of map unit:5 percent Hydric soil rating: No Ascalon Percent of map unit:5 percent Hydric soil rating: No Custom Soil Resource Report 11 Custom Soil Resource Report 12 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 13 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 14