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HomeMy WebLinkAbout013 Appendix L - Wastewater Design ReportSOUTH RANGE CROSSING SUBDIVISION WASTEWATER SYSTEM IMPROVEMENTS DESIGN REPORT May 2023 PREPARED BY: MMI #: 5659.011 5/23/2023 N:\5659\011 -YTI Development\04 Design\Reports\Wastewater\WastewaterReport\5659.011_WastewaterDesignReport.docx Table of Contents 1 PROBLEM DEFINED (DEQ 11.11)......................................................................................................1 2 DESIGN CONDITIONS (DEQ 11.12) ...................................................................................................2 3 IMPACT ON EXISTING WASTEWATER FACILITIES (11.13)............................................................3 4 PROJECT DESCRIPTION (11.14).......................................................................................................3 5 DRAWINGS (11.15) .............................................................................................................................3 6 DESIGN CRITERIA (11.16)..................................................................................................................3 7 SITE INFORMATION (11.17)...............................................................................................................3 8 ALTERNATIVE SELECTION/ANALYSIS (11.18) ...............................................................................4 9 ENVIRONMENTAL IMPACTS (11.19).................................................................................................4 APPENDICES Appendix A Vicinity Map Appendix B Distribution System Map (City of Bozeman GIS Infrastructure Viewer) Appendix C NRCS Soils Report Appendix D Water and Sewer Layout Appendix E Groundwater Monitoring Data Written By: RSN Checked By: MEE, LRH Approved By: JRN Project No.: 5659.011 1 South Range Crossing Subdivision Wastewater System Design Report EXECUTIVE SUMMARY The proposed South Range Crossing Subdivision (SRX) encompasses a total of 38.41 acres and is generally located at the southeast corner of Graf Street and South 19th Avenue. The property is within the boundaries of the City of Bozeman, Montana and was annexed in August of 2006. The property is zoned REMU (Residential Emphasis Mixed Use). See the vicinity map (Appendix A) for additional location details. The following is the legal description for the property: Lot 1, Block 2 of Minor Subdivision 494. Located in the NW1/4 and SW1/4 of Section 24, Township 2 South, Range 5 East, P.M.M., City of Bozeman, Gallatin County, Montana The property has historically been utilized for agricultural purposes but has been inactive recently. Some remnant crops persist, but most vegetation is absent other than miscellaneous native weeds. Existing groundwater in the area is relatively shallow, and the results of ground water monitoring completed in 2022 are included in Appendix E. This design report provides a basis of design for the sewer collection system for SRX. The sewer collection system will be designed and installed in accordance with the Montana Department of Environmental Quality (MDEQ) Circular No. 2; Montana Public Works Standard Specifications (MPWSS); The City of Bozeman Modifications to MPWSS; City of Bozeman Design Standards and Specifications Policy March of 2004, and all Addenda; and the City of Bozeman Wastewater Facility Plan. The following design report follows the section numbering of the Circular DEQ-2 Standards for Public Sewage Systems, 2018. 1 PROBLEM DEFINED (DEQ 11.11) The purpose of this design report is to quantify the anticipated sewer flows from SRX and provide sizing for the proposed sewer infrastructure. Sewer collection for the project will consist of sewer mains located in the rights-of-way or easements and individual services provided to each property or building location (if known). Sewer mains within the project will generally flow to the north and connect to an existing 10” sewer main within Graff Street at a single location where an existing 8-inch sewer main stub exists. This 10” sewer main conveys wastewater west into an 18” main located within South 19th Avenue. 2 DESIGN CONDITIONS (DEQ 11.12) SRX consists of 38.40 acres of proposed REMU zoning. At this time, SRX is proposing to designate 3.76 of the property for commercial development. The remaining 34.64 acres is planned for build-to-rent residential property (BTR), townhomes, open space, and public park. The project flows generally north and discharges into a single existing 10-inch main within West Graf Street where it is conveyed west to the Davis/Fowler interceptor. 2 Design flowrates for this development are based on the “City of Bozeman Wastewater Collection Facilities Plan Update” prepared by Morrison-Maierle, Inc. in 2015. Based on Table 2-13 of that document, the REMU zoned parcels use a flowrate of 1,456 gal/acre/day which is developed from an estimate of 2.17 people per dwelling unit and a maximum of 10.4 units per acre. The community commercial parcels use 2,400 gal/acre/day according to Table 2-14. The population was calculated from Table 1-1 which states wastewater usage is 64.4 gpd/capita for residential, and 33.8 gpd/capita for commercial. The peak hour factor was calculated based on the City Design Standards and Specification Policy. The final addition to projected wastewater generation is infiltration/inflow (I/I) which is 150 gpd/acre per the City Design Standards and Specifications Policy (Section V.B.4 - Page 48). The anticipated sewer flows are summarized in Table 1 below: Table 1 – SRX Sewer Demands 1 July 2017 City of Bozeman Waste Facility Plan Update 3 IMPACT ON EXISTING WASTEWATER FACILITIES (11.13) The property is within the wastewater planning boundary for the City of Bozeman as described in the 2015 City of Bozeman Wastewater Collection System Facilities Plan. The existing sewer mains in the vicinity of this project (the 10” existing sewer main along Graf Street which flows into an 18” sewer main along South 19th Avenue) can handle the increase in flows based on information in the 2015 City of Bozeman Wastewater Collection Facilities Plan Update. The 2015 Wastewater Facility Plan identified a number of long-term pipe upgrades downstream of this development. All the pipes that require long term upgrades have adequate capacity for this development. The pipe section identified as the most limiting is the WWTP Interceptor which had an available capacity of 2,280 gpm based on the 2015 plan. A current distribution map is provided as Appendix B. 4 PROJECT DESCRIPTION (11.14) The purpose of this design report is to quantity the anticipated sewer flows from SRX and provide calculations supporting the sizing for the proposed wastewater infrastructure to serve the project. 3 5 DRAWINGS (11.15) Drawings identifying the site of the project, including the location and size of proposed facilities are included in this submittal (see preliminary plat for details). 6 DESIGN CRITERIA (11.16) Design criteria including average and peak flows were provided in previous sections. The proposed sewer mains will conform to the State’s minimum vertical and horizontal separation criteria from water mains. The proposed conventional gravity sewer collection system is to be constructed to City of Bozeman and the 6th Edition of Montana Public Works (MPW) standard specifications. The sewer mains shall be SDR 35 PVC pipe. All manholes shall be standard concrete manholes spaced no more than 400 feet apart. 8” Sewer Mains The proposed design includes 8” sewer mains within the project rights-of-way and easements. An 8” main installed at minimum slope and flowing at 75% capacity can accommodate 305 gpm. The total anticipated wastewater generated from this project is approximately 161 gpm with no additional expected wastewater generation from neighboring properties through the site; therefore, 8” mains are sufficient to serve the development. Refer to Appendix D for more information. 7 SITE INFORMATION (11.17) SRX is bounded by West Graf Street to the north, Alder Creek Subdivision Phase 4 to the east, Blackwood Groves Subdivision to the south and South 19th Avenue to the west. The proposed development is currently undeveloped agricultural land which slopes gently to the north with existing grades of less than 4% and mostly Meadowcreek loam and Blackmore silt loam deposits (USDA, Natural Resources Conservation Service, Web Soil Survey). See the soils report located in Appendix C for details. 8 ALTERNATIVE SELECTION/ANALYSIS (11.18) No proposed alternatives were considered 9 ENVIRONMENTAL IMPACTS (11.19) There are no expected environmental impacts from this sewer main extension, as the City of Bozeman Wastewater Treatment Plant has more than adequate capacity for this extension. A APPENDIX A VICINITY MAP ©COPYRIGHT MORRISON-MAIERLE, INC., SHEET NUMBER PROJECT NO.DRAWN BY: FLD WK. BY: CHK. BY: DATE: 2022 Plotted by lee hageman on Nov/14/2022N:\5659\011 -YTI Development\ACAD\Exhibits\5659.011 - SRX-Vicinity Map.dwgSOUTH RANGE CROSSING VICINITY MAP BOZEMAN MONTANA 5659.011 EX-A JCW JCW MEE 11/2022engineers surveyors planners scientists MorrisonMaierle 2880 Technology Blvd West Bozeman, MT 59718 Phone: 406.587.0721 www.m-m.net 200SOUTH 19TH AVENUESOUTHBRIDGE SUB.PHASE1LOT 1BLK 4LEGAL DESCRIPTION GRAF STREET YELL O W S T O N E T H E O L O GI C A L INSTI T U T E MI N O R S U B 4 9 4 LOT 1, B L O C K 2 - 3 8. 4 1 A C SUMMER WAY LANEBROOKDALE DR ALDER CREEK DR SOUTHBRIDGE DR LOT 1BLK 5PUBLICPARKPUBLICPARKLOT AMINORSUB 235ALOT 3MINORSUB 235ALOT 2MINORSUB 235LOT 3, BLK 1MINOR SUB 494LOT 3, BLK 1MINOR SUB 494LOT 4, B L K 1 MINOR S U B 4 9 4 ALLISON SUBANNEX, S24, T02 S,R05 E, ACRES40.217, SE4NW4ALDER CREEKSUBDIVISION PH-5ALDER CREEKSUBDIVISION PH-5ALDER CREEKSUBDIVISIONPH-5ALLISON SUB ANNEX,S24, T02 S, R05 E, TRBEING IN ALLISONANNEX NE4SW47.653AC COS 792ALDER CREEKSUBDIVISIONPH-5OPEN SPACELOT 38 BLOCK 15LOT 37 LOT 36 LOT 35 LOT 34 LOT 33 LOT 32 LOT 31 LOT 30 LOT 29 LOT 28 PARK 9 LOT 27 LOT 26 LOT 25 LOT 24 LOT 23 LOT 22 LOT 21 LOT 20 LOT 38 BLOCK 14BLOCK 20BLACKWO O D G R O V E S S U B . S24, T02 S , R 0 5 E , A C R E S 117.47, S2S W 4 L E S S R W S E C 24 & N2N 2 N W 4 S E C 2 5 BOZEMAN COMMUNI T Y P L A N FUTURE L A N D U S E : RESIDENT I A L MIXED US E BOZE M A N C O M M U N I T Y PLAN F U T U R E L A N D USE: U R B A N NEIGH B O R H O O D BOZE M A N C O M M U N I T Y PLAN F U T U R E L A N D USE: U R B A N NEIGH B O R H O O D BOZE M A N C O M M U N I T Y PLAN F U T U R E L A N D USE: U R B A N NEIGH B O R H O O D BOZE M A N C O M M U N I T Y PLAN F U T U R E L A N D USE: U R B A N NEIGH B O R H O O D BOZE M A N C O M M U N I T Y PLAN F U T U R E L A N D USE: U R B A N NEIG H B O R H O O D A Tract of land being the SW1/4NW1/4 and the NW1/4SW1/4 of Section 24, Excepting therefrom that portion conveyed to the State of Montana in Bargain and Sale Deed recorded June 30, 1964 in Book 146 of Deeds, Page 24, Records of Gallatin County, located in the NW1/4 and SW1/4 of Section 24, Township 2 South, Range 5 East, P.M.M., City of Bozeman, Gallatin County, Montana,being more fully described as follows: Beginning at a point on the east line of said Lot 1 and lying S89°31'54" W a distance of 30.00 feet from the Center-West 1/16th corner of section 24 and being the True Point of Beginning; thence S0°17'12" E along the east line of said Lot 1 Block 2 of Minor Subdivision No. 494, for a distance of 1329.88 feet to a point being the southeast corner of said Lot 1 and also a point on the east-west south 1/16th line of said section 24; thence S88°58'32"W along the south line of said lot 1 for a distance of 1307.81 feet to the section line common to sections 23 and 24, T.2S.,R.5E.,P.M.; thence N00°42'16" W along said section line for a distance of 1368.09 feet to the intersection of the centerline of Graf Street extended per Yellowstone Theological Institute Minor Subdivision 494; thence along the said centerline the following (3) courses: thence N89°05'08" E for a distance of 1050.01 feet; thence along a tangent curve to the left with a radius of 300.00 feet, a central angle of 26°09'42", an arc length of 136.98 feet thence; along a compound curve to the right with a radius of 300.00 feet, a central angle of 26°56'09", an arc length of 141.04 feet; thence S0°09'49"E for a distance of 97.21 feet to the True Point of Beginning. Said Lot 1 having 41.38 acres, along with and subject to any easements.SOUTH 15TH AVESOUTH RANGE CROSSING SUBDIVISION - VICINITY MAP BLOCK 2 BLOCK 2 LOT 1 LOT 2 LOT 3 LOT 4 LOT 5 LOT 6 LOT 1 LOT 2 LOT 3 LOT 4 LOT 5 LOT 6PARK 16 OS E OS F B APPENDIX B COLLECTION SYSTEM MAP (City of Bozeman GIS Infrastructure Viewer) 36,1121.1 Miles This product is for informational purposes and may not have been prepared for, or be suitable for legal, engineering, or surveying purposes. Users of this information should review or consult the primary data and information sources to ascertain the usability of the information. Miles 10 Legend 0 Location 1 11/11/2022 Created By: Created For: Date: South Range Crossing Abandoned Mains Force Mains Gravity Mains Street Names (Major) City Limits Project Location C APPENDIX C 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 Gallatin County Area, MontanaNatural Resources Conservation Service November 14, 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 Gallatin County Area, Montana.......................................................................13 350B—Blackmore silt loam, 0 to 4 percent slopes......................................13 510B—Meadowcreek loam, 0 to 4 percent slopes......................................14 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 505461050546805054750505482050548905054960505503050551005055170505461050546805054750505482050548905054960505503050551005055170495100 495170 495240 495310 495380 495450 495520 495100 495170 495240 495310 495380 495450 495520 45° 39' 1'' N 111° 3' 47'' W45° 39' 1'' N111° 3' 25'' W45° 38' 41'' N 111° 3' 47'' W45° 38' 41'' N 111° 3' 25'' WN Map projection: Web Mercator Corner coordinates: WGS84 Edge tics: UTM Zone 12N WGS84 0 100 200 400 600 Feet 0 45 90 180 270 Meters Map Scale: 1:3,040 if printed on A portrait (8.5" x 11") sheet. Soil Map may not be valid at this scale. MAP LEGEND MAP INFORMATION Area of Interest (AOI) Area of Interest (AOI) Soils Soil Map Unit Polygons Soil Map Unit Lines Soil Map Unit Points Special Point Features Blowout Borrow Pit Clay Spot Closed Depression Gravel Pit Gravelly Spot Landfill Lava Flow Marsh or swamp Mine or Quarry Miscellaneous Water Perennial Water Rock Outcrop Saline Spot Sandy Spot Severely Eroded Spot Sinkhole Slide or Slip Sodic Spot Spoil Area Stony Spot Very Stony Spot Wet Spot Other Special Line Features Water Features Streams and Canals Transportation Rails Interstate Highways US Routes Major Roads Local Roads Background Aerial Photography The soil surveys that comprise your AOI were mapped at 1:24,000. 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: Gallatin County Area, Montana Survey Area Data: Version 26, Aug 30, 2022 Soil map units are labeled (as space allows) for map scales 1:50,000 or larger. Date(s) aerial images were photographed: Aug 3, 2009—Sep 1, 2016 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 350B Blackmore silt loam, 0 to 4 percent slopes 0.2 0.5% 510B Meadowcreek loam, 0 to 4 percent slopes 39.2 99.5% Totals for Area of Interest 39.4 100.0% 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, Custom Soil Resource Report 11 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 Gallatin County Area, Montana 350B—Blackmore silt loam, 0 to 4 percent slopes Map Unit Setting National map unit symbol: 56q7 Elevation: 4,850 to 5,550 feet Mean annual precipitation: 18 to 22 inches Mean annual air temperature: 37 to 43 degrees F Frost-free period: 80 to 95 days Farmland classification: All areas are prime farmland Map Unit Composition Blackmore and similar soils:90 percent Minor components:10 percent Estimates are based on observations, descriptions, and transects of the mapunit. Description of Blackmore Setting Landform:Stream terraces Down-slope shape:Linear Across-slope shape:Linear Parent material:Calcareous loess Typical profile A - 0 to 10 inches: silt loam Bt - 10 to 27 inches: silty clay loam Bk1 - 27 to 42 inches: silt loam Bk2 - 42 to 60 inches: silt loam Properties and qualities Slope:0 to 4 percent Depth to restrictive feature:More than 80 inches Drainage class:Well drained Capacity of the most limiting layer to transmit water (Ksat):Moderately high (0.20 to 0.57 in/hr) Depth to water table:More than 80 inches Frequency of flooding:None Frequency of ponding:None Calcium carbonate, maximum content:30 percent Available water supply, 0 to 60 inches: High (about 11.4 inches) Interpretive groups Land capability classification (irrigated): 4e Land capability classification (nonirrigated): 4e Hydrologic Soil Group: C Ecological site: R043BP818MT - Upland Grassland Group Hydric soil rating: No Minor Components Bowery Percent of map unit:5 percent Landform:Stream terraces, alluvial fans Down-slope shape:Linear Custom Soil Resource Report 13 Across-slope shape:Linear Ecological site:R044BB032MT - Loamy (Lo) LRU 01 Subset B Hydric soil rating: No Blackmore Percent of map unit:3 percent Landform:Stream terraces Down-slope shape:Linear Across-slope shape:Linear Ecological site:R043BP820MT - Upland Shrubland Group Hydric soil rating: No Brodyk Percent of map unit:2 percent Landform:Stream terraces Down-slope shape:Linear Across-slope shape:Linear Ecological site:R044BB030MT - Limy (Ly) LRU 01 Subset B Hydric soil rating: No 510B—Meadowcreek loam, 0 to 4 percent slopes Map Unit Setting National map unit symbol: 56vt Elevation: 4,200 to 5,950 feet Mean annual precipitation: 12 to 18 inches Mean annual air temperature: 39 to 45 degrees F Frost-free period: 90 to 110 days Farmland classification: Prime farmland if irrigated Map Unit Composition Meadowcreek and similar soils:85 percent Minor components:15 percent Estimates are based on observations, descriptions, and transects of the mapunit. Description of Meadowcreek Setting Landform:Stream terraces Down-slope shape:Linear Across-slope shape:Linear Parent material:Alluvium Typical profile A - 0 to 11 inches: loam Bg - 11 to 25 inches: silt loam 2C - 25 to 60 inches: very gravelly sand Properties and qualities Slope:0 to 4 percent Depth to restrictive feature:More than 80 inches Custom Soil Resource Report 14 Drainage class:Somewhat poorly drained Capacity of the most limiting layer to transmit water (Ksat):Moderately high to high (0.57 to 1.98 in/hr) Depth to water table:About 24 to 42 inches Frequency of flooding:None Frequency of ponding:None Maximum salinity:Nonsaline to slightly saline (0.0 to 4.0 mmhos/cm) Available water supply, 0 to 60 inches: Low (about 5.1 inches) Interpretive groups Land capability classification (irrigated): 2e Land capability classification (nonirrigated): 3e Hydrologic Soil Group: C Ecological site: R044BP815MT - Subirrigated Grassland Hydric soil rating: No Minor Components Blossberg Percent of map unit:10 percent Landform:Terraces Down-slope shape:Linear Across-slope shape:Linear Ecological site:R044BP815MT - Subirrigated Grassland Hydric soil rating: Yes Beaverton Percent of map unit:5 percent Landform:Stream terraces, alluvial fans Down-slope shape:Linear Across-slope shape:Linear Ecological site:R044BP818MT - Upland Grassland Hydric soil rating: No Custom Soil Resource Report 15 D APPENDIX D WATER AND SEWER LAYOUT PHAS E 5 PHAS E 1 PHAS E 2 PHAS E 2 PHAS E 4 PHAS E 3 PHAS E 1 PHAS E 4 8W8W 8W8W8W8W8W 8W 8W 8W 8W 8W 8W8W8W8W 8W 8W 8W 8W 8W8W8W8W8W8W8W8W 8W8W8W8W 8W 8W8W8W8W8W 8W 8W 8W8W8W8W8W12W 12W 12W 12W 12W DYH DYHDYH DYH DYHDYH DYHDYH DYH DYH DYH DYH DYH DYH8W 8W B B B B 8W8W 8W 8W 8W8WDYH DYH 8W 8W DYH W 8WB B B B B B B B B B B B B 8WB B B DYH 8S8S8S8S8S 8S 8S 8S8S8S8S8S8S8SS S S SS 8S 8S 8SSS SS S S S SS 8S8S8S8S8S 8S 8S8S8SS S S S SS S S S S S S S SS SS S 8S 8S S S S S SS S S S S S S S S S S S S 8S8S8S8SS S SSS S S8S8S8S8S 8S8SS S S S S S 8SS S8S S S S FIGURE NUMBER © PROJECT NO.DRAWN BY: DSGN. BY: APPR. BY: DATE: COPYRIGHT MORRISON-MAIERLE,2023 Plotted by lee hageman on Mar/14/2023 engineers surveyors planners scientists MorrisonMaierle 2880 Technology Blvd West Bozeman, MT 59718 406.587.0721 www.m-m.net N:\5659\011 -YTI Development\ACAD\Exhibits\Water & Sewer Layout.dwg5659.011 EX-1 RSN BOZEMAN MONTANA WATER AND SEWER SCHEMATIC LAYOUT RSN SOUTH RANGE CROSSING SUBDIVISION PRELIMINARY PLAT SUBMITTAL RSN 03/14/23 100 2000 SCALE IN FEETSOUTH 15TH AVE (60')PROVIDENCE DR (60')RICHLAND DR (60')SOUTH 19TH AVE (120')WEST GRAF ST (90') BROOKDALE DR (60') ALDER CREEK DR (60')CANTER AVE (60')SOUTHBRIDGE DR (60') E APPENDIX E GROUNDWATER MONITORING DATA BPBPBPBPBPMW MW MW MW MW MWMW ©COPYRIGHT MORRISON-MAIERLE, INC., SHEET NUMBER PROJECT NO.DRAWN BY: FLD WK. BY: CHK. BY: DATE: 2022 Plotted by matt e. ekstrom on Nov/10/2022N:\5659\011 -YTI Development\ACAD\Exhibits\5659.011 - SRX- Groundwater Well Map.dwgSOUTH RANGE CROSSING -SUBDIVISION GROUNDWATER MONITORING WELL LOCATIONS BOZEMAN MONTANA 5659.011 EX-1 JCW JCW MEE 11/2022engineers surveyors planners scientists MorrisonMaierle 2880 Technology Blvd West Bozeman, MT 59718 Phone: 406.587.0721 www.m-m.net 200SOUTH 19TH AVENUELEGAL DESCRIPTION GRAF STREET SUMMER WAY LANEBROOKDALE DR ALDER CREEK DR SOUTHBRIDGE DR A Tract of land being the SW1/4NW1/4 and the NW1/4SW1/4 of Section 24, Excepting therefrom that portion conveyed to the State of Montana in Bargain and Sale Deed recorded June 30, 1964 in Book 146 of Deeds, Page 24, Records of Gallatin County, located in the NW1/4 and SW1/4 of Section 24, Township 2 South, Range 5 East, P.M.M., City of Bozeman, Gallatin County, Montana,being more fully described as follows: Beginning at a point on the east line of said Lot 1 and lying S89°31'54" W a distance of 30.00 feet from the Center-West 1/16th corner of section 24 and being the True Point of Beginning; thence S0°17'12" E along the east line of said Lot 1 Block 2 of Minor Subdivision No. 494, for a distance of 1329.88 feet to a point being the southeast corner of said Lot 1 and also a point on the east-west south 1/16th line of said section 24; thence S88°58'32"W along the south line of said lot 1 for a distance of 1307.81 feet to the section line common to sections 23 and 24, T.2S.,R.5E.,P.M.; thence N00°42'16" W along said section line for a distance of 1368.09 feet to the intersection of the centerline of Graf Street extended per Yellowstone Theological Institute Minor Subdivision 494; thence along the said centerline the following (3) courses: thence N89°05'08" E for a distance of 1050.01 feet; thence along a tangent curve to the left with a radius of 300.00 feet, a central angle of 26°09'42", an arc length of 136.98 feet thence; along a compound curve to the right with a radius of 300.00 feet, a central angle of 26°56'09", an arc length of 141.04 feet; thence S0°09'49"E for a distance of 97.21 feet to the True Point of Beginning. Said Lot 1 having 41.38 acres, along with and subject to any easements.SOUTH 15TH AVESOUTH RANGE CROSSING SUBDIVISION GROUNDWATER MON. WELL - #7 GROUNDWATER MON. WELL - #6 GROUNDWATER MON. WELL - #5 GROUNDWATER MON. WELL - #8 C&H GROUNDWATER MON. WELL - #13 GROUND ~5001.30 HIGH GW DEPTH PER C&H = 0.72 APPROX GW ELEVATION = 5000.58 C&H GROUNDWATER MON. WELL - #13 GROUND ~5001.30 HIGH GW DEPTH PER C&H = 0.63 APPROX GW ELEVATION = 5000.67 C&H GROUNDWATER MON. WELL - #13 GROUND ~5003.30 HIGH GW DEPTH PER C&H = 1.90 APPROX GW ELEVATION = 5001.40 NOTE: THE C&H GROUNDWATER DATA SHOWN WAS TAKEN FROM THE BLACKWOOD GROVE SUBDIVISION APPLICATION MATERIALS. South Range Crossing - Measurements shown are from ground elevation to water surface elevation DATES Well 5/23/2022 6/2/2022 6/15/2022 6/25/2022 7/12/2022 7/26/2022 8/10/2022 8/31/2022 5 3.50 2.88 3.16 4.03 4.75 4.86 5.45 5.75 6 2.00 1.53 1.59 2.65 4.18 4.23 5.05 5.35 7 1.69 1.14 1.31 2.16 3.55 4.15 4.54 4.84 8 2.85 2.13 2.46 3.24 4.27 4.87 5.26 5.66 0.62 -0.28 -0.72 -0.11 -0.59 -0.30 5.75 0.47 -0.06 -1.53 -0.05 -0.82 -0.30 5.35 0.55 -0.17 -1.39 -0.60 -0.39 -0.30 4.84 0.72 -0.33 -1.03 -0.60 -0.39 -0.40 5.66 Average 0.47 -0.17 -0.93 -0.27 -0.44 -0.26 4.32 South Range Crossing - Ground Water Depth Below Surface 9/16/20228/27/20228/7/20227/18/20226/28/20226/8/20225/19/2022 0.00 1.00 2.00 3.00 4.00 5.00 6.00 7.00 WELL #5 WELL #6 WELL #7 WELL #8