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. V
alues 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 dif ferent 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
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identified each as a specific map unit. Aerial photographs show trees, buildings, fields, roads, and rivers, all of which help in locating boundaries accurately.
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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. 8 621
9 Custom Soil Resource Report
Soil Map
4173300 4173400 4173500 4173600 4173700 4173800 4173900 4174000 4174100 4174200 4173300 4173400 4173500 4173600 4173700 4173800 4173900 4174000 4174100 4174200 602400 602500 602600 602700 602800 602900 603000
602400 602500 602600 602700 602800 602900 603000 603100 37° 42' 36'' N
121° 50' 21'' W
37° 42' 36'' N
121° 49' 49'' W
37° 42' 2'' N
121° 50' 21'' W
37° 42' 2'' N
121° 49' 49'' WN
Map projection: Web Mercator Corner coordinates: WGS84 Edge tics: UTM Zone 10N WGS84 0 200 400 800 1200
Feet
0 50 100 200 300
Meters
Map Scale: 1:5,010 if printed on A portrait (8.5" x 11") sheet.
Soil Map may not be valid at this scale.
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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
1:20,000.
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: Alameda Area, California
Survey Area Data: Version 13, Sep 16, 2019
Soil map units are labeled (as space allows) for map scales 1:50,000 or larger.
Date(s) aerial images were photographed: Apr 29, 2019—May 10, 2019
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.
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Map Unit Legend
Map Unit Symbol Map Unit Name Acres in AOI Percent of AOI DvC Diablo clay, very deep, 3 to 15
percent slopes
6.8 16.7%
LaC Linne clay loam, 3 to 15 percent
slopes
2.9 7.1%
LaD Linne clay loam, 15 to 30
percent slopes, MLRA 15
25.1 61.5%
RdA Rincon clay loam, 0 to 3
percent slopes
0.2 0.6%
RdB Rincon clay loam, 3 to 7
percent slopes
5.7 14.0%
Totals for Area of Interest 40.8 100.0%
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.
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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 dif
ferences 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 dif
fer in texture of the surface layer, slope, stoniness,
salinity, degree of erosion, and other characteristics that affect their use. On the basis of such dif
ferences, 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.
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Alameda Area, California
DvC—Diablo clay, very deep, 3 to 15 percent slopes
Map Unit Setting
National map unit symbol: hb3b
Elevation: 300 to 1,700 feet
Mean annual precipitation: 10 to 15 inches
Mean annual air temperature: 57 degrees F
Frost-free period: 240 to 280 days
Farmland classification: Farmland of statewide importance Map Unit Composition
Diablo and similar soils: 85 percent
Minor components: 15 percent
Estimates are based on observations, descriptions, and transects of the mapunit.
Description of Diablo
Setting
Landform: Hills
Landform position (two-dimensional): Backslope
Landform position (three-dimensional): Side slope
Down-slope shape: Convex
Across-slope shape: Convex
Parent material: Alluvium derived from shale and siltstone Typical profile
H1 - 0 to 15 inches: clay
H2 - 15 to 42 inches: silty clay
H3 - 42 to 60 inches: silty clay
Properties and qualities
Slope: 3 to 15 percent
Depth to restrictive feature: More than 80 inches
Natural drainage class: Well 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: More than 80 inches
Frequency of flooding: None
Frequency of ponding: None
Calcium carbonate, maximum in profile: 5 percent
Salinity, maximum in profile: Nonsaline to moderately saline (0.0 to 8.0 mmhos/cm)
Available water storage in profile: High (about 10.2 inches) Interpretive groups
Land capability classification (irrigated): 3e
Land capability classification (nonirrigated): 4e
Hydrologic Soil Group: C
Hydric soil rating: No
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Minor Components
Altamont
Percent of map unit: 5 percent
Hydric soil rating: No
Linne
Percent of map unit: 5 percent
Hydric soil rating: No
Clear lake
Percent of map unit: 3 percent
Landform: Basin floors
Landform position (two-dimensional): Toeslope
Landform position (three-dimensional): Talf
Down-slope shape: Linear
Across-slope shape: Linear
Hydric soil rating: Yes
Pescadero
Percent of map unit: 2 percent
Landform: Basin floors
Landform position (two-dimensional): Toeslope
Landform position (three-dimensional): Talf
Down-slope shape: Linear
Across-slope shape: Linear
Hydric soil rating: Yes
LaC—Linne clay loam, 3 to 15 percent slopes
Map Unit Setting
National map unit symbol: hb3l
Elevation: 700 to 1,700 feet
Mean annual precipitation: 10 to 15 inches
Mean annual air temperature: 57 degrees F
Frost-free period: 240 to 260 days
Farmland classification: Farmland of statewide importance Map Unit Composition
Linne and similar soils: 85 percent
Minor components: 15 percent
Estimates are based on observations, descriptions, and transects of the mapunit.
Description of Linne
Setting
Landform: Hills
Landform position (two-dimensional): Backslope
Landform position (three-dimensional): Side slope
Down-slope shape: Convex
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Across-slope shape: Convex
Parent material: Residuum weathered from sandstone and shale Typical profile
H1 - 0 to 36 inches: clay loam
H2 - 36 to 40 inches: weathered bedrock
Properties and qualities
Slope: 3 to 15 percent
Depth to restrictive feature: 20 to 40 inches to paralithic bedrock Natural drainage class: Well drained
Runoff class: Medium
Capacity of the most limiting layer to transmit water (Ksat): Very low (0.00 in/hr) Depth to water table: More than 80 inches
Frequency of flooding: None
Frequency of ponding: None
Calcium carbonate, maximum in profile: 10 percent
Salinity, maximum in profile: Nonsaline to very slightly saline (0.0 to 2.0 mmhos/cm)
Available water storage in profile: Moderate (about 6.4 inches) Interpretive groups
Land capability classification (irrigated): 3e
Land capability classification (nonirrigated): 4e
Hydrologic Soil Group: C
Hydric soil rating: No
Minor Components
Altamont
Percent of map unit: 5 percent
Hydric soil rating: No
Diablo
Percent of map unit: 5 percent
Hydric soil rating: No
Clear lake
Percent of map unit: 3 percent
Landform: Basin floors
Landform position (two-dimensional): Toeslope
Landform position (three-dimensional): Talf
Down-slope shape: Linear
Across-slope shape: Linear
Hydric soil rating: Yes
Pescadero
Percent of map unit: 2 percent
Landform: Basin floors
Landform position (two-dimensional): Toeslope
Landform position (three-dimensional): Talf
Down-slope shape: Linear
Across-slope shape: Linear
Hydric soil rating: Yes
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LaD—Linne clay loam, 15 to 30 percent slopes, MLRA 15
Map Unit Setting
National map unit symbol: 2w63l
Elevation: 110 to 1,560 feet
Mean annual precipitation: 13 to 22 inches
Mean annual air temperature: 59 to 61 degrees F
Frost-free period: 300 to 365 days
Farmland classification: Not prime farmland
Map Unit Composition
Linne and similar soils: 85 percent
Minor components: 15 percent
Estimates are based on observations, descriptions, and transects of the mapunit.
Description of Linne
Setting
Landform: Hillslopes, mountain slopes
Landform position (two-dimensional): Backslope
Landform position (three-dimensional): Mountainflank, side slope Down-slope shape: Convex
Across-slope shape: Convex
Parent material: Residuum weathered from calcareous shale Typical profile
Ap - 0 to 9 inches: clay loam
A1 - 9 to 14 inches: clay loam
A2 - 14 to 29 inches: clay loam
AC - 29 to 32 inches: sandy clay loam
Ck - 32 to 36 inches: fine sandy loam
Cr - 36 to 51 inches: bedrock
Properties and qualities
Slope: 15 to 30 percent
Depth to restrictive feature: 35 to 50 inches to paralithic bedrock Natural drainage class: Well drained
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
Available water storage in profile: Moderate (about 6.1 inches) Interpretive groups
Land capability classification (irrigated): 4e
Land capability classification (nonirrigated): 4e
Hydrologic Soil Group: D
Hydric soil rating: No
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Minor Components
Diablo
Percent of map unit: 5 percent
Landform: Mountain slopes, hillslopes
Landform position (two-dimensional): Backslope
Landform position (three-dimensional): Mountainflank, side slope Down-slope shape: Convex
Across-slope shape: Convex
Ecological site: CLAYEY (R015XD001CA)
Hydric soil rating: No
Altamont
Percent of map unit: 4 percent
Landform: Hillslopes
Landform position (two-dimensional): Backslope
Landform position (three-dimensional): Side slope
Down-slope shape: Convex
Across-slope shape: Convex
Hydric soil rating: No
Clear lake
Percent of map unit: 3 percent
Landform: Drainageways
Landform position (two-dimensional): Toeslope
Landform position (three-dimensional): Tread
Down-slope shape: Concave
Across-slope shape: Concave
Hydric soil rating: Yes
Pescadero
Percent of map unit: 2 percent
Landform: Drainageways, depressions
Landform position (two-dimensional): Toeslope
Landform position (three-dimensional): Base slope, dip
Down-slope shape: Convex, concave
Across-slope shape: Concave
Hydric soil rating: Yes
Haploxerolls, landslides
Percent of map unit: 1 percent
Landform: Slumps, landslides
Landform position (two-dimensional): Backslope
Landform position (three-dimensional): Head slope
Down-slope shape: Concave
Across-slope shape: Concave
Hydric soil rating: No
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RdA—Rincon clay loam, 0 to 3 percent slopes
Map Unit Setting
National map unit symbol: hb4j
Elevation: 10 to 600 feet
Mean annual precipitation: 12 to 16 inches
Mean annual air temperature: 57 degrees F
Frost-free period: 260 days
Farmland classification: Prime farmland if irrigated
Map Unit Composition
Rincon and similar soils: 85 percent
Minor components: 15 percent
Estimates are based on observations, descriptions, and transects of the mapunit.
Description of Rincon
Setting
Landform: Fans, valley floors
Landform position (two-dimensional): Footslope, toeslope Landform position (three-dimensional): Tread, talf
Down-slope shape: Linear
Across-slope shape: Linear
Parent material: Alluvium derived from sandstone and shale Typical profile
H1 - 0 to 16 inches: clay loam
H2 - 16 to 52 inches: sandy clay
H3 - 52 to 60 inches: stratified sandy loam to clay loam Properties and qualities
Slope: 0 to 3 percent
Depth to restrictive feature: More than 80 inches
Natural 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 in profile: 5 percent
Salinity, maximum in profile: Nonsaline to very slightly saline (0.0 to 2.0 mmhos/cm)
Available water storage in profile: High (about 9.5 inches) Interpretive groups
Land capability classification (irrigated): 2s
Land capability classification (nonirrigated): 4s
Hydrologic Soil Group: C
Hydric soil rating: No
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Minor Components
Clear lake
Percent of map unit: 5 percent
Hydric soil rating: No
San ysidro
Percent of map unit: 5 percent
Hydric soil rating: No
Pleasanton
Percent of map unit: 5 percent
Hydric soil rating: No
RdB—Rincon clay loam, 3 to 7 percent slopes
Map Unit Setting
National map unit symbol: hb4k
Elevation: 10 to 600 feet
Mean annual precipitation: 12 to 16 inches
Mean annual air temperature: 57 degrees F
Frost-free period: 260 days
Farmland classification: Prime farmland if irrigated
Map Unit Composition
Rincon and similar soils: 85 percent
Minor components: 15 percent
Estimates are based on observations, descriptions, and transects of the mapunit.
Description of Rincon
Setting
Landform: Fans, valley floors
Landform position (two-dimensional): Footslope, toeslope Landform position (three-dimensional): Tread, talf
Down-slope shape: Linear
Across-slope shape: Linear
Parent material: Alluvium derived from sandstone and shale Typical profile
H1 - 0 to 16 inches: clay loam
H2 - 16 to 52 inches: sandy clay
H3 - 52 to 60 inches: stratified sandy loam to clay loam Properties and qualities
Slope: 3 to 7 percent
Depth to restrictive feature: More than 80 inches
Natural drainage class: Well 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)
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Depth to water table: More than 80 inches
Frequency of flooding: None
Frequency of ponding: None
Calcium carbonate, maximum in profile: 5 percent
Salinity, maximum in profile: Nonsaline to very slightly saline (0.0 to 2.0 mmhos/cm)
Available water storage in profile: High (about 9.5 inches) Interpretive groups
Land capability classification (irrigated): 2e
Land capability classification (nonirrigated): 4e
Hydrologic Soil Group: C
Hydric soil rating: No
Minor Components
San ysidro
Percent of map unit: 5 percent
Hydric soil rating: No
Pleasanton
Percent of map unit: 5 percent
Hydric soil rating: No
Clear lake
Percent of map unit: 5 percent
Hydric soil rating: No
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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 21 634
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
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Glossary
Many of the terms relating to landforms, geology, and geomorphology are defined in more detail in the following National Soil Survey Handbook link: “National Soil Survey Handbook.”
ABC soil
A soil having an A, a B, and a C horizon.
Ablation till
Loose, relatively permeable earthy material deposited during the downwasting of nearly static glacial ice, either contained within or accumulated on the surface of the glacier.
AC soil
A soil having only an A and a C horizon. Commonly, such soil formed in recent alluvium or on steep, rocky slopes.
Aeration, soil
The exchange of air in soil with air from the atmosphere. The air in a well aerated soil is similar to that in the atmosphere; the air in a poorly aerated soil is considerably higher in carbon dioxide and lower in oxygen.
Aggregate, soil
Many fine particles held in a single mass or cluster
. Natural soil aggregates,
such as granules, blocks, or prisms, are called peds. Clods are aggregates produced by tillage or logging.
Alkali (sodic) soil
A soil having so high a degree of alkalinity (pH 8.5 or higher) or so high a percentage of exchangeable sodium (15 percent or more of the total exchangeable bases), or both, that plant growth is restricted.
Alluvial cone
A semiconical type of alluvial fan having very steep slopes. It is higher, narrower, and steeper than a fan and is composed of coarser and thicker layers of material deposited by a combination of alluvial episodes and (to a much lesser degree) landslides (debris flow). The coarsest materials tend to be concentrated at the apex of the cone.
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Alluvial fan
A low, outspread mass of loose materials and/or rock material, commonly with gentle slopes. It is shaped like an open fan or a segment of a cone. The material was deposited by a stream at the place where it issues from a narrow mountain valley or upland valley or where a tributary stream is near or at its junction with the main stream. The fan is steepest near its apex, which points upstream, and slopes gently and convexly outward (downstream) with a gradual decrease in gradient.
Alluvium
Unconsolidated material, such as gravel, sand, silt, clay, and various mixtures of these, deposited on land by running water.
Alpha,alpha-dipyridyl
A compound that when dissolved in ammonium acetate is used to detect the presence of reduced iron (Fe II) in the soil. A positive reaction implies reducing conditions and the likely presence of redoximorphic features.
Animal unit month (AUM)
The amount of forage required by one mature cow of approximately 1,000 pounds weight, with or without a calf, for 1 month.
Aquic conditions
Current soil wetness characterized by saturation, reduction, and redoximorphic features.
Argillic horizon
A subsoil horizon characterized by an accumulation of illuvial clay.
Arroyo
The flat-floored channel of an ephemeral stream, commonly with very steep to vertical banks cut in unconsolidated material. It is usually dry but can be transformed into a temporary watercourse or short-lived torrent after heavy rain within the watershed.
Aspect
The direction toward which a slope faces. Also called slope aspect.
Association, soil
A group of soils or miscellaneous areas geographically associated in a characteristic repeating pattern and defined and delineated as a single map unit.
Available water capacity (available moisture capacity)
The capacity of soils to hold water available for use by most plants. It is commonly defined as the dif
ference between the amount of soil water at field
moisture capacity and the amount at wilting point. It is commonly expressed as inches of water per inch of soil. The capacity, in inches, in a 60-inch profile or to a limiting layer is expressed as:
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Very low: 0 to 3
Low: 3 to 6
Moderate: 6 to 9
High:
9 to 12
Very high: More than 12
Backslope
The position that forms the steepest and generally linear, middle portion of a hillslope. In profile, backslopes are commonly bounded by a convex shoulder above and a concave footslope below.
Backswamp
A flood-plain landform. Extensive, marshy or swampy, depressed areas of flood plains between natural levees and valley sides or terraces.
Badland
A landscape that is intricately dissected and characterized by a very fine drainage network with high drainage densities and short, steep slopes and narrow interfluves. Badlands develop on surfaces that have little or no vegetative cover overlying unconsolidated or poorly cemented materials (clays, silts, or sandstones) with, in some cases, soluble minerals, such as gypsum or halite.
Bajada
A broad, gently inclined alluvial piedmont slope extending from the base of a mountain range out into a basin and formed by the lateral coalescence of a series of alluvial fans. T
ypically, it has a broadly undulating transverse profile, parallel to the mountain front, resulting from the convexities of component fans.
The term is generally restricted to constructional slopes of intermontane basins.
Basal area
The area of a cross section of a tree, generally referring to the section at breast height and measured outside the bark. It is a measure of stand density, commonly expressed in square feet.
Base saturation
The degree to which material having cation-exchange properties is saturated with exchangeable bases (sum of Ca, Mg, Na, and K), expressed as a percentage of the total cation-exchange capacity
.
Base slope (geomorphology)
A geomorphic component of hills consisting of the concave to linear (perpendicular to the contour) slope that, regardless of the lateral shape, forms an apron or wedge at the bottom of a hillside dominated by colluvium and slope-wash sediments (for example, slope alluvium).
Bedding plane
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from the preceding or following layer; a plane of deposition. It commonly marks a change in the circumstances of deposition and may show a parting, a color difference, a change in particle size, or various combinations of these. The term is commonly applied to any bedding surface, even one that is conspicuously bent or deformed by folding.
Bedding system
A drainage system made by plowing, grading, or otherwise shaping the surface of a flat field. It consists of a series of low ridges separated by shallow, parallel dead furrows.
Bedrock
The solid rock that underlies the soil and other unconsolidated material or that is exposed at the surface.
Bedrock-controlled topography
A landscape where the configuration and relief of the landforms are determined or strongly influenced by the underlying bedrock.
Bench terrace
A raised, level or nearly level strip of earth constructed on or nearly on a contour, supported by a barrier of rocks or similar material, and designed to make the soil suitable for tillage and to prevent accelerated erosion.
Bisequum
Two sequences of soil horizons, each of which consists of an illuvial horizon and the overlying eluvial horizons.
Blowout (map symbol)
A saucer-, cup-, or trough-shaped depression formed by wind erosion on a preexisting dune or other sand deposit, especially in an area of shifting sand or loose soil or where protective vegetation is disturbed or destroyed. The adjoining accumulation of sand derived from the depression, where recognizable, is commonly included. Blowouts are commonly small.
Borrow pit (map symbol)
An open excavation from which soil and underlying material have been removed, usually for construction purposes.
Bottom land
An informal term loosely applied to various portions of a flood plain.
Boulders
Rock fragments larger than 2 feet (60 centimeters) in diameter .
Breaks
A landscape or tract of steep, rough or broken land dissected by ravines and gullies and marking a sudden change in topography.
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Breast height
An average height of 4.5 feet above the ground surface; the point on a tree where diameter measurements are ordinarily taken.
Brush management
Use of mechanical, chemical, or biological methods to make conditions favorable for reseeding or to reduce or eliminate competition from woody vegetation and thus allow understory grasses and forbs to recover. Brush management increases forage production and thus reduces the hazard of erosion. It can improve the habitat for some species of wildlife.
Butte
An isolated, generally flat-topped hill or mountain with relatively steep slopes and talus or precipitous cliffs and characterized by summit width that is less than the height of bounding escarpments; commonly topped by a caprock of resistant material and representing an erosion remnant carved from flat-lying rocks.
Cable yarding
A method of moving felled trees to a nearby central area for transport to a processing facility. Most cable yarding systems involve use of a drum, a pole, and wire cables in an arrangement similar to that of a rod and reel used for fishing. To reduce friction and soil disturbance, felled trees generally are reeled in while one end is lifted or the entire log is suspended.
Calcareous soil
A soil containing enough calcium carbonate (commonly combined with magnesium carbonate) to ef
fervesce visibly when treated with cold, dilute
hydrochloric acid.
Caliche
A general term for a prominent zone of secondary carbonate accumulation in surficial materials in warm, subhumid to arid areas. Caliche is formed by both geologic and pedologic processes. Finely crystalline calcium carbonate forms a nearly continuous surface-coating and void-filling medium in geologic (parent) materials. Cementation ranges from weak in nonindurated forms to very strong in indurated forms. Other minerals (e.g., carbonates, silicate, and sulfate) may occur as accessory cements. Most petrocalcic horizons and some calcic horizons are caliche.
California bearing ratio (CBR)
The load-supporting capacity of a soil as compared to that of standard crushed limestone, expressed as a ratio. First standardized in California. A soil having a CBR of 16 supports 16 percent of the load that would be supported by standard crushed limestone, per unit area, with the same degree of distortion.
Canopy
The leafy crown of trees or shrubs. (See Crown.)
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Canyon
A long, deep, narrow valley with high, precipitous walls in an area of high local relief.
Capillary water
Water held as a film around soil particles and in tiny spaces between particles.
Surface tension is the adhesive force that holds capillary water in the soil.
Catena
A sequence, or “chain,” of soils on a landscape that formed in similar kinds of parent material and under similar climatic conditions but that have different characteristics as a result of differences in relief and drainage.
Cation
An ion carrying a positive charge of electricity
. The common soil cations are
calcium, potassium, magnesium, sodium, and hydrogen.
Cation-exchange capacity
The total amount of exchangeable cations that can be held by the soil, expressed in terms of milliequivalents per 100 grams of soil at neutrality (pH
7.0) or at some other stated pH value. The term, as applied to soils, is synonymous with base-exchange capacity but is more precise in meaning.
Catsteps
See Terracettes.
Cement rock
Shaly limestone used in the manufacture of cement.
Channery soil material
Soil material that has, by volume, 15 to 35 percent thin, flat fragments of sandstone, shale, slate, limestone, or schist as much as 6 inches (15 centimeters) along the longest axis. A single piece is called a channer.
Chemical treatment
Control of unwanted vegetation through the use of chemicals.
Chiseling
Tillage with an implement having one or more soil-penetrating points that shatter or loosen hard, compacted layers to a depth below normal plow depth.
Cirque
A steep-walled, semicircular or crescent-shaped, half-bowl-like recess or hollow
, commonly situated at the head of a glaciated mountain valley or high on the side of a mountain. It was produced by the erosive activity of a mountain glacier. It commonly contains a small round lake (tarn).
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Clay
As a soil separate, the mineral soil particles less than 0.002 millimeter in diameter. As a soil textural class, soil material that is 40 percent or more clay, less than 45 percent sand, and less than 40 percent silt.
Clay depletions
See Redoximorphic features.
Clay film
A thin coating of oriented clay on the surface of a soil aggregate or lining pores or root channels. Synonyms: clay coating, clay skin.
Clay spot (map symbol)
A spot where the surface texture is silty clay or clay in areas where the surface layer of the soils in the surrounding map unit is sandy loam, loam, silt loam, or coarser.
Claypan
A dense, compact subsoil layer that contains much more clay than the overlying materials, from which it is separated by a sharply defined boundary. The layer restricts the downward movement of water through the soil. A claypan is commonly hard when dry and plastic and sticky when wet.
Climax plant community
The stabilized plant community on a particular site. The plant cover reproduces itself and does not change so long as the environment remains the same.
Coarse textured soil
Sand or loamy sand.
Cobble (or cobblestone)
A rounded or partly rounded fragment of rock 3 to 10 inches (7.6 to 25 centimeters) in diameter.
Cobbly soil material
Material that has 15 to 35 percent, by volume, rounded or partially rounded rock fragments 3 to 10 inches (7.6 to 25 centimeters) in diameter. Very cobbly soil material has 35 to 60 percent of these rock fragments, and extremely cobbly soil material has more than 60 percent.
COLE (coefficient of linear extensibility)
See Linear extensibility
.
Colluvium
Unconsolidated, unsorted earth material being transported or deposited on side slopes and/or at the base of slopes by mass movement (e.g., direct gravitational action) and by local, unconcentrated runoff.
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Complex slope
Irregular or variable slope. Planning or establishing terraces, diversions, and other water-control structures on a complex slope is difficult.
Complex, soil
A map unit of two or more kinds of soil or miscellaneous areas in such an intricate pattern or so small in area that it is not practical to map them separately at the selected scale of mapping. The pattern and proportion of the soils or miscellaneous areas are somewhat similar in all areas.
Concretions
See Redoximorphic features.
Conglomerate
A coarse grained, clastic sedimentary rock composed of rounded or subangular rock fragments more than 2 millimeters in diameter. It commonly has a matrix of sand and finer textured material. Conglomerate is the consolidated equivalent of gravel.
Conservation cropping system
Growing crops in combination with needed cultural and management practices.
In a good conservation cropping system, the soil-improving crops and practices more than offset the effects of the soil-depleting crops and practices. Cropping systems are needed on all tilled soils. Soil-improving practices in a conservation cropping system include the use of rotations that contain grasses and legumes and the return of crop residue to the soil. Other practices include the use of green manure crops of grasses and legumes, proper tillage, adequate fertilization, and weed and pest control.
Conservation tillage
A tillage system that does not invert the soil and that leaves a protective amount of crop residue on the surface throughout the year
.
Consistence, soil
Refers to the degree of cohesion and adhesion of soil material and its resistance to deformation when ruptured. Consistence includes resistance of soil material to rupture and to penetration; plasticity, toughness, and stickiness of puddled soil material; and the manner in which the soil material behaves when subject to compression. Terms describing consistence are defined in the “Soil Survey Manual.”
Contour stripcropping
Growing crops in strips that follow the contour
. Strips of grass or close-growing
crops are alternated with strips of clean-tilled crops or summer fallow.
Control section
The part of the soil on which classification is based. The thickness varies among different kinds of soil, but for many it is that part of the soil profile between depths of 10 inches and 40 or 80 inches.
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Coprogenous earth (sedimentary peat)
A type of limnic layer composed predominantly of fecal material derived from aquatic animals.
Corrosion (geomorphology)
A process of erosion whereby rocks and soil are removed or worn away by natural chemical processes, especially by the solvent action of running water, but also by other reactions, such as hydrolysis, hydration, carbonation, and oxidation.
Corrosion (soil survey interpretations)
Soil-induced electrochemical or chemical action that dissolves or weakens concrete or uncoated steel.
Cover crop
A close-growing crop grown primarily to improve and protect the soil between periods of regular crop production, or a crop grown between trees and vines in orchards and vineyards.
Crop residue management
Returning crop residue to the soil, which helps to maintain soil structure, organic matter content, and fertility and helps to control erosion.
Cropping system
Growing crops according to a planned system of rotation and management practices.
Cross-slope farming
Deliberately conducting farming operations on sloping farmland in such a way that tillage is across the general slope.
Crown
The upper part of a tree or shrub, including the living branches and their foliage.
Cryoturbate
A mass of soil or other unconsolidated earthy material moved or disturbed by frost action. It is typically coarser than the underlying material.
Cuesta
An asymmetric ridge capped by resistant rock layers of slight or moderate dip (commonly less than 15 percent slopes); a type of homocline produced by differential erosion of interbedded resistant and weak rocks. A cuesta has a long, gentle slope on one side (dip slope) that roughly parallels the inclined beds; on the other side, it has a relatively short and steep or clifflike slope (scarp) that cuts through the tilted rocks.
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Culmination of the mean annual increment (CMAI)
The average annual increase per acre in the volume of a stand. Computed by dividing the total volume of the stand by its age. As the stand increases in age, the mean annual increment continues to increase until mortality begins to reduce the rate of increase. The point where the stand reaches its maximum annual rate of growth is called the culmination of the mean annual increment.
Cutbanks cave
The walls of excavations tend to cave in or slough.
Decreasers
The most heavily grazed climax range plants. Because they are the most palatable, they are the first to be destroyed by overgrazing.
Deferred grazing
Postponing grazing or resting grazing land for a prescribed period.
Delta
A body of alluvium having a surface that is fan shaped and nearly flat; deposited at or near the mouth of a river or stream where it enters a body of relatively quiet water, generally a sea or lake.
Dense layer
A very firm, massive layer that has a bulk density of more than 1.8 grams per cubic centimeter. Such a layer affects the ease of digging and can af fect filling
and compacting.
Depression, closed (map symbol)
A shallow, saucer-shaped area that is slightly lower on the landscape than the surrounding area and that does not have a natural outlet for surface drainage.
Depth, soil
Generally, the thickness of the soil over bedrock. Very deep soils are more than 60 inches deep over bedrock; deep soils, 40 to 60 inches; moderately deep, 20 to 40 inches; shallow, 10 to 20 inches; and very shallow, less than 10 inches.
Desert pavement
A natural, residual concentration or layer of wind-polished, closely packed gravel, boulders, and other rock fragments mantling a desert surface. It forms where wind action and sheetwash have removed all smaller particles or where rock fragments have migrated upward through sediments to the surface. It typically protects the finer grained underlying material from further erosion.
Diatomaceous earth
A geologic deposit of fine, grayish siliceous material composed chiefly or entirely of the remains of diatoms.
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Dip slope
A slope of the land surface, roughly determined by and approximately conforming to the dip of the underlying bedrock.
Diversion (or diversion terrace)
A ridge of earth, generally a terrace, built to protect downslope areas by diverting runoff from its natural course.
Divided-slope farming
A form of field stripcropping in which crops are grown in a systematic arrangement of two strips, or bands, across the slope to reduce the hazard of water erosion. One strip is in a close-growing crop that provides protection from erosion, and the other strip is in a crop that provides less protection from erosion. This practice is used where slopes are not long enough to permit a full stripcropping pattern to be used.
Drainage class (natural)
Refers to the frequency and duration of wet periods under conditions similar to those under which the soil formed. Alterations of the water regime by human activities, either through drainage or irrigation, are not a consideration unless they have significantly changed the morphology of the soil. Seven classes of natural soil drainage are recognized—excessively drained, somewhat excessively drained, well drained, moderately well drained, somewhat poorly drained, poorly drained, and very poorly drained. These classes are defined in the “Soil Survey Manual.”
Drainage, surface
Runof
f, or surface flow of water, from an area.
Drainageway
A general term for a course or channel along which water moves in draining an area. A term restricted to relatively small, linear depressions that at some time move concentrated water and either do not have a defined channel or have only a small defined channel.
Draw
A small stream valley that generally is shallower and more open than a ravine or gulch and that has a broader bottom. The present stream channel may appear inadequate to have cut the drainageway that it occupies.
Drift
A general term applied to all mineral material (clay, silt, sand, gravel, and boulders) transported by a glacier and deposited directly by or from the ice or transported by running water emanating from a glacier. Drift includes unstratified material (till) that forms moraines and stratified deposits that form outwash plains, eskers, kames, varves, and glaciofluvial sediments. The term is generally applied to Pleistocene glacial deposits in areas that no longer contain glaciers.
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Drumlin
A low, smooth, elongated oval hill, mound, or ridge of compact till that has a core of bedrock or drift. It commonly has a blunt nose facing the direction from which the ice approached and a gentler slope tapering in the other direction.
The longer axis is parallel to the general direction of glacier flow. Drumlins are products of streamline (laminar) flow of glaciers, which molded the subglacial floor through a combination of erosion and deposition.
Duff
A generally firm organic layer on the surface of mineral soils. It consists of fallen plant material that is in the process of decomposition and includes everything from the litter on the surface to underlying pure humus.
Dune
A low mound, ridge, bank, or hill of loose, windblown granular material (generally sand), either barren and capable of movement from place to place or covered and stabilized with vegetation but retaining its characteristic shape.
Earthy fill
See Mine spoil.
Ecological site
An area where climate, soil, and relief are sufficiently uniform to produce a distinct natural plant community
. An ecological site is the product of all the
environmental factors responsible for its development. It is typified by an association of species that differ from those on other ecological sites in kind and/or proportion of species or in total production.
Eluviation
The movement of material in true solution or colloidal suspension from one place to another within the soil. Soil horizons that have lost material through eluviation are eluvial; those that have received material are illuvial.
Endosaturation
A type of saturation of the soil in which all horizons between the upper boundary of saturation and a depth of 2 meters are saturated.
Eolian deposit
Sand-, silt-, or clay-sized clastic material transported and deposited primarily by wind, commonly in the form of a dune or a sheet of sand or loess.
Ephemeral stream
A stream, or reach of a stream, that flows only in direct response to precipitation. It receives no long-continued supply from melting snow or other source, and its channel is above the water table at all times.
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Episaturation
A type of saturation indicating a perched water table in a soil in which saturated layers are underlain by one or more unsaturated layers within 2 meters of the surface.
Erosion
The wearing away of the land surface by water, wind, ice, or other geologic agents and by such processes as gravitational creep.
Erosion (accelerated)
Erosion much more rapid than geologic erosion, mainly as a result of human or animal activities or of a catastrophe in nature, such as a fire, that exposes the surface.
Erosion (geologic)
Erosion caused by geologic processes acting over long geologic periods and resulting in the wearing away of mountains and the building up of such landscape features as flood plains and coastal plains. Synonym: natural erosion.
Erosion pavement
A surficial lag concentration or layer of gravel and other rock fragments that remains on the soil surface after sheet or rill erosion or wind has removed the finer soil particles and that tends to protect the underlying soil from further erosion.
Erosion surface
A land surface shaped by the action of erosion, especially by running water.
Escarpment
A relatively continuous and steep slope or cliff breaking the general continuity of more gently sloping land surfaces and resulting from erosion or faulting. Most commonly applied to cliffs produced by differential erosion. Synonym: scarp.
Escarpment, bedrock (map symbol)
A relatively continuous and steep slope or clif
f, produced by erosion or faulting,
that breaks the general continuity of more gently sloping land surfaces.
Exposed material is hard or soft bedrock.
Escarpment, nonbedrock (map symbol)
A relatively continuous and steep slope or cliff, generally produced by erosion but in some places produced by faulting, that breaks the continuity of more gently sloping land surfaces. Exposed earthy material is nonsoil or very shallow soil.
Esker
A long, narrow, sinuous, steep-sided ridge of stratified sand and gravel deposited as the bed of a stream flowing in an ice tunnel within or below the ice (subglacial) or between ice walls on top of the ice of a wasting glacier and left Custom Soil Resource Report
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behind as high ground when the ice melted. Eskers range in length from less than a kilometer to more than 160 kilometers and in height from 3 to 30 meters.
Extrusive rock
Igneous rock derived from deep-seated molten matter (magma) deposited and cooled on the earth’s surface.
Fallow
Cropland left idle in order to restore productivity through accumulation of moisture. Summer fallow is common in regions of limited rainfall where cereal grain is grown. The soil is tilled for at least one growing season for weed control and decomposition of plant residue.
Fan remnant
A general term for landforms that are the remaining parts of older fan landforms, such as alluvial fans, that have been either dissected or partially buried.
Fertility, soil
The quality that enables a soil to provide plant nutrients, in adequate amounts and in proper balance, for the growth of specified plants when light, moisture, temperature, tilth, and other growth factors are favorable.
Fibric soil material (peat)
The least decomposed of all organic soil material. Peat contains a large amount of well preserved fiber that is readily identifiable according to botanical origin.
Peat has the lowest bulk density and the highest water content at saturation of all organic soil material.
Field moisture capacity
The moisture content of a soil, expressed as a percentage of the ovendry weight, after the gravitational, or free, water has drained away; the field moisture content 2 or 3 days after a soaking rain; also called normal field capacity
, normal moisture capacity, or capillary capacity.
Fill slope
A sloping surface consisting of excavated soil material from a road cut. It commonly is on the downhill side of the road.
Fine textured soil
Sandy clay, silty clay, or clay.
Firebreak
An area cleared of flammable material to stop or help control creeping or running fires. It also serves as a line from which to work and to facilitate the movement of firefighters and equipment. Designated roads also serve as firebreaks.
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First bottom
An obsolete, informal term loosely applied to the lowest flood-plain steps that are subject to regular flooding.
Flaggy soil material
Material that has, by volume, 15 to 35 percent flagstones. Very flaggy soil material has 35 to 60 percent flagstones, and extremely flaggy soil material has more than 60 percent flagstones.
Flagstone
A thin fragment of sandstone, limestone, slate, shale, or (rarely) schist 6 to 15 inches (15 to 38 centimeters) long.
Flood plain
The nearly level plain that borders a stream and is subject to flooding unless protected artificially.
Flood-plain landforms
A variety of constructional and erosional features produced by stream channel migration and flooding. Examples include backswamps, flood-plain splays, meanders, meander belts, meander scrolls, oxbow lakes, and natural levees.
Flood-plain splay
A fan-shaped deposit or other outspread deposit formed where an overloaded stream breaks through a levee (natural or artificial) and deposits its material (commonly coarse grained) on the flood plain.
Flood-plain step
An essentially flat, terrace-like alluvial surface within a valley that is frequently covered by floodwater from the present stream; any approximately horizontal surface still actively modified by fluvial scour and/or deposition. May occur individually or as a series of steps.
Fluvial
Of or pertaining to rivers or streams; produced by stream or river action.
Foothills
A region of steeply sloping hills that fringes a mountain range or high-plateau escarpment. The hills have relief of as much as 1,000 feet (300 meters).
Footslope
The concave surface at the base of a hillslope. A footslope is a transition zone between upslope sites of erosion and transport (shoulders and backslopes) and downslope sites of deposition (toeslopes).
Forb
Any herbaceous plant not a grass or a sedge.
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Forest cover
All trees and other woody plants (underbrush) covering the ground in a forest.
Forest type
A stand of trees similar in composition and development because of given physical and biological factors by which it may be differentiated from other stands.
Fragipan
A loamy, brittle subsurface horizon low in porosity and content of organic matter and low or moderate in clay but high in silt or very fine sand. A fragipan appears cemented and restricts roots. When dry
, it is hard or very hard and has a higher
bulk density than the horizon or horizons above. When moist, it tends to rupture suddenly under pressure rather than to deform slowly.
Genesis, soil
The mode of origin of the soil. Refers especially to the processes or soil-forming factors responsible for the formation of the solum, or true soil, from the unconsolidated parent material.
Gilgai
Commonly
, a succession of microbasins and microknolls in nearly level areas or of microvalleys and microridges parallel with the slope. Typically, the microrelief of clayey soils that shrink and swell considerably with changes in moisture content.
Glaciofluvial deposits
Material moved by glaciers and subsequently sorted and deposited by streams flowing from the melting ice. The deposits are stratified and occur in the form of outwash plains, valley trains, deltas, kames, eskers, and kame terraces.
Glaciolacustrine deposits
Material ranging from fine clay to sand derived from glaciers and deposited in glacial lakes mainly by glacial meltwater
. Many deposits are bedded or
laminated.
Gleyed soil
Soil that formed under poor drainage, resulting in the reduction of iron and other elements in the profile and in gray colors.
Graded stripcropping
Growing crops in strips that grade toward a protected waterway.
Grassed waterway
A natural or constructed waterway
, typically broad and shallow, seeded to grass
as protection against erosion. Conducts surface water away from cropland.
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Gravel
Rounded or angular fragments of rock as much as 3 inches (2 millimeters to 7.6 centimeters) in diameter. An individual piece is a pebble.
Gravel pit (map symbol)
An open excavation from which soil and underlying material have been removed and used, without crushing, as a source of sand or gravel.
Gravelly soil material
Material that has 15 to 35 percent, by volume, rounded or angular rock fragments, not prominently flattened, as much as 3 inches (7.6 centimeters) in diameter.
Gravelly spot (map symbol)
A spot where the surface layer has more than 35 percent, by volume, rock fragments that are mostly less than 3 inches in diameter in an area that has less than 15 percent rock fragments.
Green manure crop (agronomy)
A soil-improving crop grown to be plowed under in an early stage of maturity or soon after maturity.
Ground water
Water filling all the unblocked pores of the material below the water table.
Gully (map symbol)
A small, steep-sided channel caused by erosion and cut in unconsolidated materials by concentrated but intermittent flow of water . The distinction between
a gully and a rill is one of depth. A gully generally is an obstacle to farm machinery and is too deep to be obliterated by ordinary tillage whereas a rill is of lesser depth and can be smoothed over by ordinary tillage.
Hard bedrock
Bedrock that cannot be excavated except by blasting or by the use of special equipment that is not commonly used in construction.
Hard to reclaim
Reclamation is difficult after the removal of soil for construction and other uses.
Revegetation and erosion control are extremely dif
ficult.
Hardpan
A hardened or cemented soil horizon, or layer. The soil material is sandy , loamy,
or clayey and is cemented by iron oxide, silica, calcium carbonate, or other substance.
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Head slope (geomorphology)
A geomorphic component of hills consisting of a laterally concave area of a hillside, especially at the head of a drainageway. The overland waterflow is converging.
Hemic soil material (mucky peat)
Organic soil material intermediate in degree of decomposition between the less decomposed fibric material and the more decomposed sapric material.
High-residue crops
Such crops as small grain and corn used for grain. If properly managed, residue from these crops can be used to control erosion until the next crop in the rotation is established. These crops return large amounts of organic matter to the soil.
Hill
A generic term for an elevated area of the land surface, rising as much as 1,000 feet above surrounding lowlands, commonly of limited summit area and having a well defined outline. Slopes are generally more than 15 percent. The distinction between a hill and a mountain is arbitrary and may depend on local usage.
Hillslope
A generic term for the steeper part of a hill between its summit and the drainage line, valley flat, or depression floor at the base of a hill.
Horizon, soil
A layer of soil, approximately parallel to the surface, having distinct characteristics produced by soil-forming processes. In the identification of soil horizons, an uppercase letter represents the major horizons. Numbers or lowercase letters that follow represent subdivisions of the major horizons. An explanation of the subdivisions is given in the “Soil Survey Manual.” The major horizons of mineral soil are as follows:
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O horizon: An organic layer of fresh and decaying plant residue.
L horizon: A layer of organic and mineral limnic materials, including coprogenous earth (sedimentary peat), diatomaceous earth, and marl.
A horizon:
The mineral horizon at or near the surface in which an accumulation of humified organic matter is mixed with the mineral material. Also, a plowed surface horizon, most of which was originally part of a B horizon.
E horizon: The mineral horizon in which the main feature is loss of silicate clay, iron, aluminum, or some combination of these.
B horizon:
The mineral horizon below an A horizon. The B horizon is in part a layer of transition from the overlying A to the underlying C horizon. The B horizon also has distinctive characteristics, such as (1) accumulation of clay, sesquioxides, humus, or a combination of these; (2) prismatic or blocky structure; (3) redder or browner colors than those in the A horizon; or (4) a combination of these.
C horizon: The mineral horizon or layer, excluding indurated bedrock, that is little affected by soil-forming processes and does not have the properties typical of the overlying soil material. The material of a C horizon may be either like or unlike that in which the solum formed. If the material is known to differ from that in the solum, an Arabic numeral, commonly a 2, precedes the letter C.
Cr horizon:
Soft, consolidated bedrock beneath the soil.
R layer: Consolidated bedrock beneath the soil. The bedrock commonly underlies a C horizon, but it can be directly below an A or a B horizon.
M layer: A root-limiting subsoil layer consisting of nearly continuous, horizontally oriented, human-manufactured materials.
W layer:
A layer of water within or beneath the soil.
Humus
The well decomposed, more or less stable part of the organic matter in mineral soils.
Hydrologic soil groups
Refers to soils grouped according to their runoff potential. The soil properties that influence this potential are those that affect the minimum rate of water infiltration on a bare soil during periods after prolonged wetting when the soil is not frozen. These properties include depth to a seasonal high water table, the infiltration rate, and depth to a layer that significantly restricts the downward movement of water. The slope and the kind of plant cover are not considered but are separate factors in predicting runof
f.
Igneous rock
Rock that was formed by cooling and solidification of magma and that has not been changed appreciably by weathering since its formation. Major varieties include plutonic and volcanic rock (e.g., andesite, basalt, and granite).
Illuviation
The movement of soil material from one horizon to another in the soil profile.
Generally, material is removed from an upper horizon and deposited in a lower horizon.
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Impervious soil
A soil through which water, air, or roots penetrate slowly or not at all. No soil is absolutely impervious to air and water all the time.
Increasers
Species in the climax vegetation that increase in amount as the more desirable plants are reduced by close grazing. Increasers commonly are the shorter plants and the less palatable to livestock.
Infiltration
The downward entry of water into the immediate surface of soil or other material, as contrasted with percolation, which is movement of water through soil layers or material.
Infiltration capacity
The maximum rate at which water can infiltrate into a soil under a given set of conditions.
Infiltration rate
The rate at which water penetrates the surface of the soil at any given instant, usually expressed in inches per hour. The rate can be limited by the infiltration capacity of the soil or the rate at which water is applied at the surface.
Intake rate
The average rate of water entering the soil under irrigation. Most soils have a fast initial rate; the rate decreases with application time. Therefore, intake rate for design purposes is not a constant but is a variable depending on the net irrigation application. The rate of water intake, in inches per hour, is expressed as follows:
Very low:
Less than 0.2
Low: 0.2 to 0.4
Moderately low: 0.4 to 0.75
Moderate: 0.75 to 1.25
Moderately high: 1.25 to 1.75
High: 1.75 to 2.5
Very high: More than 2.5
Interfluve
A landform composed of the relatively undissected upland or ridge between two adjacent valleys containing streams flowing in the same general direction. An elevated area between two drainageways that sheds water to those drainageways.
Interfluve (geomorphology)
A geomorphic component of hills consisting of the uppermost, comparatively level or gently sloping area of a hill; shoulders of backwearing hillslopes can narrow the upland or can merge, resulting in a strongly convex shape.
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Intermittent stream
A stream, or reach of a stream, that does not flow year-round but that is commonly dry for 3 or more months out of 12 and whose channel is generally below the local water table. It flows only during wet periods or when it receives ground-water discharge or long, continued contributions from melting snow or other surface and shallow subsurface sources.
Invaders
On range, plants that encroach into an area and grow after the climax vegetation has been reduced by grazing. Generally, plants invade following disturbance of the surface.
Iron depletions
See Redoximorphic features.
Irrigation
Application of water to soils to assist in production of crops. Methods of irrigation are:
Basin: Water is applied rapidly to nearly level plains surrounded by levees or dikes.
Border:
Water is applied at the upper end of a strip in which the lateral flow of water is controlled by small earth ridges called border dikes, or borders.
Controlled flooding: Water is released at intervals from closely spaced field ditches and distributed uniformly over the field.
Corrugation: Water is applied to small, closely spaced furrows or ditches in fields of close-growing crops or in orchards so that it flows in only one direction.
Drip (or trickle): Water is applied slowly and under low pressure to the surface of the soil or into the soil through such applicators as emitters, porous tubing, or perforated pipe.
Furrow: Water is applied in small ditches made by cultivation implements.
Furrows are used for tree and row crops.
Sprinkler: W
ater is sprayed over the soil surface through pipes or nozzles from a pressure system.
Subirrigation: Water is applied in open ditches or tile lines until the water table is raised enough to wet the soil.
Wild flooding: Water, released at high points, is allowed to flow onto an area without controlled distribution.
Kame
A low mound, knob, hummock, or short irregular ridge composed of stratified sand and gravel deposited by a subglacial stream as a fan or delta at the margin of a melting glacier; by a supraglacial stream in a low place or hole on the surface of the glacier; or as a ponded deposit on the surface or at the margin of stagnant ice.
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Karst (topography)
A kind of topography that formed in limestone, gypsum, or other soluble rocks by dissolution and that is characterized by closed depressions, sinkholes, caves, and underground drainage.
Knoll
A small, low, rounded hill rising above adjacent landforms.
Ksat
See Saturated hydraulic conductivity.
Lacustrine deposit
Material deposited in lake water and exposed when the water level is lowered or the elevation of the land is raised.
Lake plain
A nearly level surface marking the floor of an extinct lake filled by well sorted, generally fine textured, stratified deposits, commonly containing varves.
Lake terrace
A narrow shelf, partly cut and partly built, produced along a lakeshore in front of a scarp line of low cliffs and later exposed when the water level falls.
Landfill (map symbol)
An area of accumulated waste products of human habitation, either above or below natural ground level.
Landslide
A general, encompassing term for most types of mass movement landforms and processes involving the downslope transport and outward deposition of soil and rock materials caused by gravitational forces; the movement may or may not involve saturated materials. The speed and distance of movement, as well as the amount of soil and rock material, vary greatly.
Large stones
Rock fragments 3 inches (7.6 centimeters) or more across. Large stones adversely affect the specified use of the soil.
Lava flow (map symbol)
A solidified, commonly lobate body of rock formed through lateral, surface outpouring of molten lava from a vent or fissure.
Leaching
The removal of soluble material from soil or other material by percolating water.
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Levee (map symbol)
An embankment that confines or controls water, especially one built along the banks of a river to prevent overflow onto lowlands.
Linear extensibility
Refers to the change in length of an unconfined clod as moisture content is decreased from a moist to a dry state. Linear extensibility is used to determine the shrink-swell potential of soils. It is an expression of the volume change between the water content of the clod at 1/3- or 1/10-bar tension (33kPa or 10kPa tension) and oven dryness. Volume change is influenced by the amount and type of clay minerals in the soil. The volume change is the percent change for the whole soil. If it is expressed as a fraction, the resulting value is COLE, coefficient of linear extensibility
.
Liquid limit
The moisture content at which the soil passes from a plastic to a liquid state.
Loam
Soil material that is 7 to 27 percent clay particles, 28 to 50 percent silt particles, and less than 52 percent sand particles.
Loess
Material transported and deposited by wind and consisting dominantly of silt- sized particles.
Low strength
The soil is not strong enough to support loads.
Low-residue crops
Such crops as corn used for silage, peas, beans, and potatoes. Residue from these crops is not adequate to control erosion until the next crop in the rotation is established. These crops return little organic matter to the soil.
Marl
An earthy, unconsolidated deposit consisting chiefly of calcium carbonate mixed with clay in approximately equal proportions; formed primarily under freshwater lacustrine conditions but also formed in more saline environments.
Marsh or swamp (map symbol)
A water-saturated, very poorly drained area that is intermittently or permanently covered by water. Sedges, cattails, and rushes are the dominant vegetation in marshes, and trees or shrubs are the dominant vegetation in swamps. Not used in map units where the named soils are poorly drained or very poorly drained.
Mass movement
A generic term for the dislodgment and downslope transport of soil and rock material as a unit under direct gravitational stress.
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Masses
See Redoximorphic features.
Meander belt
The zone within which migration of a meandering channel occurs; the flood- plain area included between two imaginary lines drawn tangential to the outer bends of active channel loops.
Meander scar
A crescent-shaped, concave or linear mark on the face of a bluff or valley wall, produced by the lateral erosion of a meandering stream that impinged upon and undercut the bluff.
Meander scroll
One of a series of long, parallel, close-fitting, crescent-shaped ridges and troughs formed along the inner bank of a stream meander as the channel migrated laterally down-valley and toward the outer bank.
Mechanical treatment
Use of mechanical equipment for seeding, brush management, and other management practices.
Medium textured soil
Very fine sandy loam, loam, silt loam, or silt.
Mesa
A broad, nearly flat topped and commonly isolated landmass bounded by steep slopes or precipitous clif
fs and capped by layers of resistant, nearly horizontal rocky material. The summit width is characteristically greater than the height of the bounding escarpments.
Metamorphic rock
Rock of any origin altered in mineralogical composition, chemical composition, or structure by heat, pressure, and movement at depth in the earth’s crust.
Nearly all such rocks are crystalline.
Mine or quarry (map symbol)
An open excavation from which soil and underlying material have been removed and in which bedrock is exposed. Also denotes surface openings to underground mines.
Mine spoil
An accumulation of displaced earthy material, rock, or other waste material removed during mining or excavation. Also called earthy fill.
Mineral soil
Soil that is mainly mineral material and low in organic material. Its bulk density is more than that of organic soil.
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Minimum tillage
Only the tillage essential to crop production and prevention of soil damage.
Miscellaneous area
A kind of map unit that has little or no natural soil and supports little or no vegetation.
Miscellaneous water (map symbol)
Small, constructed bodies of water that are used for industrial, sanitary, or mining applications and that contain water most of the year.
Moderately coarse textured soil
Coarse sandy loam, sandy loam, or fine sandy loam.
Moderately fine textured soil
Clay loam, sandy clay loam, or silty clay loam.
Mollic epipedon
A thick, dark, humus-rich surface horizon (or horizons) that has high base saturation and pedogenic soil structure. It may include the upper part of the subsoil.
Moraine
In terms of glacial geology, a mound, ridge, or other topographically distinct accumulation of unsorted, unstratified drift, predominantly till, deposited primarily by the direct action of glacial ice in a variety of landforms. Also, a general term for a landform composed mainly of till (except for kame moraines, which are composed mainly of stratified outwash) that has been deposited by a glacier
. Some types of moraines are disintegration, end, ground, kame, lateral, recessional, and terminal.
Morphology, soil
The physical makeup of the soil, including the texture, structure, porosity, consistence, color
, and other physical, mineral, and biological properties of the various horizons, and the thickness and arrangement of those horizons in the soil profile.
Mottling, soil
Irregular spots of different colors that vary in number and size. Descriptive terms are as follows: abundance—few
, common, and many; size—fine,
medium, and coarse; and contrast—faint, distinct, and prominent. The size measurements are of the diameter along the greatest dimension. Fine indicates less than 5 millimeters (about 0.2 inch); medium, from 5 to 15 millimeters (about
0.2 to 0.6 inch); and coarse, more than 15 millimeters (about 0.6 inch).
Mountain
A generic term for an elevated area of the land surface, rising more than 1,000 feet (300 meters) above surrounding lowlands, commonly of restricted summit area (relative to a plateau) and generally having steep sides. A mountain can Custom Soil Resource Report
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occur as a single, isolated mass or in a group forming a chain or range.
Mountains are formed primarily by tectonic activity and/or volcanic action but can also be formed by differential erosion.
Muck
Dark, finely divided, well decomposed organic soil material. (See Sapric soil material.)
Mucky peat
See Hemic soil material.
Mudstone
A blocky or massive, fine grained sedimentary rock in which the proportions of clay and silt are approximately equal. Also, a general term for such material as clay, silt, claystone, siltstone, shale, and argillite and that should be used only when the amounts of clay and silt are not known or cannot be precisely identified.
Munsell notation
A designation of color by degrees of three simple variables—hue, value, and chroma. For example, a notation of 10YR 6/4 is a color with hue of 10YR, value of 6, and chroma of 4.
Natric horizon
A special kind of argillic horizon that contains enough exchangeable sodium to have an adverse effect on the physical condition of the subsoil.
Neutral soil
A soil having a pH value of 6.6 to 7.3. (See Reaction, soil.) Nodules
See Redoximorphic features.
Nose slope (geomorphology)
A geomorphic component of hills consisting of the projecting end (laterally convex area) of a hillside. The overland waterflow is predominantly divergent.
Nose slopes consist dominantly of colluvium and slope-wash sediments (for example, slope alluvium).
Nutrient, plant
Any element taken in by a plant essential to its growth. Plant nutrients are mainly nitrogen, phosphorus, potassium, calcium, magnesium, sulfur, iron, manganese, copper, boron, and zinc obtained from the soil and carbon, hydrogen, and oxygen obtained from the air and water
.
Organic matter
Plant and animal residue in the soil in various stages of decomposition. The content of organic matter in the surface layer is described as follows:
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Very low: Less than 0.5 percent
Low: 0.5 to 1.0 percent
Moderately low: 1.0 to 2.0 percent
Moderate: 2.0 to 4.0 percent
High:
4.0 to 8.0 percent
Very high: More than 8.0 percent
Outwash
Stratified and sorted sediments (chiefly sand and gravel) removed or “washed out” from a glacier by meltwater streams and deposited in front of or beyond the end moraine or the margin of a glacier. The coarser material is deposited nearer to the ice.
Outwash plain
An extensive lowland area of coarse textured glaciofluvial material. An outwash plain is commonly smooth; where pitted, it generally is low in relief.
Paleoterrace
An erosional remnant of a terrace that retains the surface form and alluvial deposits of its origin but was not emplaced by, and commonly does not grade to, a present-day stream or drainage network.
Pan
A compact, dense layer in a soil that impedes the movement of water and the growth of roots. For example,
hardpan, fragipan, claypan, plowpan, and traffic
pan.
Parent material
The unconsolidated organic and mineral material in which soil forms.
Peat
Unconsolidated material, largely undecomposed organic matter, that has accumulated under excess moisture. (See Fibric soil material.) Ped
An individual natural soil aggregate, such as a granule, a prism, or a block.
Pedisediment
A layer of sediment, eroded from the shoulder and backslope of an erosional slope, that lies on and is being (or was) transported across a gently sloping erosional surface at the foot of a receding hill or mountain slope.
Pedon
The smallest volume that can be called “a soil.” A pedon is three dimensional and large enough to permit study of all horizons. Its area ranges from about 10 to 100 square feet (1 square meter to 10 square meters), depending on the variability of the soil.
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Percolation
The movement of water through the soil.
Perennial water (map symbol)
Small, natural or constructed lakes, ponds, or pits that contain water most of the year.
Permafrost
Ground, soil, or rock that remains at or below 0 degrees C for at least 2 years. It is defined on the basis of temperature and is not necessarily frozen. pH value
A numerical designation of acidity and alkalinity in soil. (See Reaction, soil.) Phase, soil
A subdivision of a soil series based on features that affect its use and management, such as slope, stoniness, and flooding.
Piping
Formation of subsurface tunnels or pipelike cavities by water moving through the soil.
Pitting
Pits caused by melting around ice. They form on the soil after plant cover is removed.
Plastic limit
The moisture content at which a soil changes from semisolid to plastic.
Plasticity index
The numerical dif
ference between the liquid limit and the plastic limit; the range of moisture content within which the soil remains plastic.
Plateau (geomorphology)
A comparatively flat area of great extent and elevation; specifically, an extensive land region that is considerably elevated (more than 100 meters) above the adjacent lower lying terrain, is commonly limited on at least one side by an abrupt descent, and has a flat or nearly level surface. A comparatively large part of a plateau surface is near summit level.
Playa
The generally dry and nearly level lake plain that occupies the lowest parts of closed depressions, such as those on intermontane basin floors. Temporary flooding occurs primarily in response to precipitation and runoff. Playa deposits are fine grained and may or may not have a high water table and saline conditions.
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Plinthite
The sesquioxide-rich, humus-poor, highly weathered mixture of clay with quartz and other diluents. It commonly appears as red mottles, usually in platy, polygonal, or reticulate patterns. Plinthite changes irreversibly to an ironstone hardpan or to irregular aggregates on repeated wetting and drying, especially if it is exposed also to heat from the sun. In a moist soil, plinthite can be cut with a spade. It is a form of laterite.
Plowpan
A compacted layer formed in the soil directly below the plowed layer.
Ponding
Standing water on soils in closed depressions. Unless the soils are artificially drained, the water can be removed only by percolation or evapotranspiration.
Poorly graded
Refers to a coarse grained soil or soil material consisting mainly of particles of nearly the same size. Because there is little difference in size of the particles, density can be increased only slightly by compaction.
Pore linings
See Redoximorphic features.
Potential native plant community
See Climax plant community.
Potential rooting depth (effective rooting depth)
Depth to which roots could penetrate if the content of moisture in the soil were adequate. The soil has no properties restricting the penetration of roots to this depth.
Prescribed burning
Deliberately burning an area for specific management purposes, under the appropriate conditions of weather and soil moisture and at the proper time of day
.
Productivity, soil
The capability of a soil for producing a specified plant or sequence of plants under specific management.
Profile, soil
A vertical section of the soil extending through all its horizons and into the parent material.
Proper grazing use
Grazing at an intensity that maintains enough cover to protect the soil and maintain or improve the quantity and quality of the desirable vegetation. This practice increases the vigor and reproduction capacity of the key plants and Custom Soil Resource Report
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promotes the accumulation of litter and mulch necessary to conserve soil and water.
Rangeland
Land on which the potential natural vegetation is predominantly grasses, grasslike plants, forbs, or shrubs suitable for grazing or browsing. It includes natural grasslands, savannas, many wetlands, some deserts, tundras, and areas that support certain forb and shrub communities.
Reaction, soil
A measure of acidity or alkalinity of a soil, expressed as pH values. A soil that tests to pH 7.0 is described as precisely neutral in reaction because it is neither acid nor alkaline. The degrees of acidity or alkalinity, expressed as pH values, are:
Ultra acid: Less than 3.5
Extremely acid:
3.5 to 4.4
Very strongly acid: 4.5 to 5.0
Strongly acid: 5.1 to 5.5
Moderately acid: 5.6 to 6.0
Slightly acid: 6.1 to 6.5
Neutral: 6.6 to 7.3
Slightly alkaline: 7.4 to 7.8
Moderately alkaline: 7.9 to 8.4
Strongly alkaline: 8.5 to 9.0
Very strongly alkaline: 9.1 and higher
Red beds
Sedimentary strata that are mainly red and are made up largely of sandstone and shale.
Redoximorphic concentrations
See Redoximorphic features.
Redoximorphic depletions
See Redoximorphic features.
Redoximorphic features
Redoximorphic features are associated with wetness and result from alternating periods of reduction and oxidation of iron and manganese compounds in the soil. Reduction occurs during saturation with water, and oxidation occurs when the soil is not saturated. Characteristic color patterns are created by these processes. The reduced iron and manganese ions may be removed from a soil if vertical or lateral fluxes of water occur, in which case there is no iron or manganese precipitation in that soil. Wherever the iron and manganese are oxidized and precipitated, they form either soft masses or hard concretions or nodules. Movement of iron and manganese as a result of redoximorphic processes in a soil may result in redoximorphic features that are defined as follows:
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1. Redoximorphic concentrations.—These are zones of apparent accumulation of iron-manganese oxides, including:
A. Nodules and concretions, which are cemented bodies that can be removed from the soil intact. Concretions are distinguished from nodules on the basis of internal organization. A concretion typically has concentric layers that are visible to the naked eye. Nodules do not have visible organized internal structure; and
B. Masses, which are noncemented concentrations of substances within the soil matrix; and
C. Pore linings, i.e., zones of accumulation along pores that may be either coatings on pore surfaces or impregnations from the matrix adjacent to the pores.
2. Redoximorphic depletions.—These are zones of low chroma (chromas less than those in the matrix) where either iron-manganese oxides alone or both iron-manganese oxides and clay have been stripped out, including:
A. Iron depletions, i.e., zones that contain low amounts of iron and manganese oxides but have a clay content similar to that of the adjacent matrix; and
B. Clay depletions, i.e., zones that contain low amounts of iron, manganese, and clay (often referred to as silt coatings or skeletans).
3. Reduced matrix.—This is a soil matrix that has low chroma in situ but undergoes a change in hue or chroma within 30 minutes after the soil material has been exposed to air
.
Reduced matrix
See Redoximorphic features.
Regolith
All unconsolidated earth materials above the solid bedrock. It includes material weathered in place from all kinds of bedrock and alluvial, glacial, eolian, lacustrine, and pyroclastic deposits.
Relief
The relative difference in elevation between the upland summits and the lowlands or valleys of a given region.
Residuum (residual soil material)
Unconsolidated, weathered or partly weathered mineral material that accumulated as bedrock disintegrated in place.
Rill
A very small, steep-sided channel resulting from erosion and cut in unconsolidated materials by concentrated but intermittent flow of water. A rill generally is not an obstacle to wheeled vehicles and is shallow enough to be smoothed over by ordinary tillage.
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Riser
The vertical or steep side slope (e.g., escarpment) of terraces, flood-plain steps, or other stepped landforms; commonly a recurring part of a series of natural, steplike landforms, such as successive stream terraces.
Road cut
A sloping surface produced by mechanical means during road construction. It is commonly on the uphill side of the road.
Rock fragments
Rock or mineral fragments having a diameter of 2 millimeters or more; for example, pebbles, cobbles, stones, and boulders.
Rock outcrop (map symbol)
An exposure of bedrock at the surface of the earth. Not used where the named soils of the surrounding map unit are shallow over bedrock or where “Rock outcrop” is a named component of the map unit.
Root zone
The part of the soil that can be penetrated by plant roots.
Runoff
The precipitation discharged into stream channels from an area. The water that flows off the surface of the land without sinking into the soil is called surface runoff. W
ater that enters the soil before reaching surface streams is called ground-water runoff or seepage flow from ground water.
Saline soil
A soil containing soluble salts in an amount that impairs growth of plants. A saline soil does not contain excess exchangeable sodium.
Saline spot (map symbol)
An area where the surface layer has an electrical conductivity of 8 mmhos/cm more than the surface layer of the named soils in the surrounding map unit. The surface layer of the surrounding soils has an electrical conductivity of 2 mmhos/cm or less.
Sand
As a soil separate, individual rock or mineral fragments from 0.05 millimeter to
2.0 millimeters in diameter. Most sand grains consist of quartz. As a soil textural class, a soil that is 85 percent or more sand and not more than 10 percent clay.
Sandstone
Sedimentary rock containing dominantly sand-sized particles.
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Sandy spot (map symbol)
A spot where the surface layer is loamy fine sand or coarser in areas where the surface layer of the named soils in the surrounding map unit is very fine sandy loam or finer.
Sapric soil material (muck)
The most highly decomposed of all organic soil material. Muck has the least amount of plant fiber, the highest bulk density, and the lowest water content at saturation of all organic soil material.
Saturated hydraulic conductivity (Ksat)
The ease with which pores of a saturated soil transmit water . Formally, the
proportionality coefficient that expresses the relationship of the rate of water movement to hydraulic gradient in Darcy’s Law
, a law that describes the rate of
water movement through porous media. Commonly abbreviated as “Ksat.” Terms describing saturated hydraulic conductivity are:
Very high:
100 or more micrometers per second (14.17 or more inches per hour)
High: 10 to 100 micrometers per second (1.417 to 14.17 inches per hour) Moderately high: 1 to 10 micrometers per second (0.1417 inch to 1.417 inches per hour)
Moderately low: 0.1 to 1 micrometer per second (0.01417 to 0.1417 inch per hour)
Low:
0.01 to 0.1 micrometer per second (0.001417 to 0.01417 inch per hour) Very low: Less than 0.01 micrometer per second (less than 0.001417 inch per hour).
To convert inches per hour to micrometers per second, multiply inches per hour by 7.0572. To convert micrometers per second to inches per hour, multiply micrometers per second by 0.1417.
Saturation
W
etness characterized by zero or positive pressure of the soil water. Under conditions of saturation, the water will flow from the soil matrix into an unlined auger hole.
Scarification
The act of abrading, scratching, loosening, crushing, or modifying the surface to increase water absorption or to provide a more tillable soil.
Sedimentary rock
A consolidated deposit of clastic particles, chemical precipitates, or organic remains accumulated at or near the surface of the earth under normal low temperature and pressure conditions. Sedimentary rocks include consolidated equivalents of alluvium, colluvium, drift, and eolian, lacustrine, and marine deposits. Examples are sandstone, siltstone, mudstone, claystone, shale, conglomerate, limestone, dolomite, and coal.
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Sequum
A sequence consisting of an illuvial horizon and the overlying eluvial horizon. (See Eluviation.)
Series, soil
A group of soils that have profiles that are almost alike, except for differences in texture of the surface layer. All the soils of a series have horizons that are similar in composition, thickness, and arrangement.
Severely eroded spot (map symbol)
An area where, on the average, 75 percent or more of the original surface layer has been lost because of accelerated erosion. Not used in map units in which “severely eroded,” “very severely eroded,” or “gullied” is part of the map unit name.
Shale
Sedimentary rock that formed by the hardening of a deposit of clay, silty clay, or silty clay loam and that has a tendency to split into thin layers.
Sheet erosion
The removal of a fairly uniform layer of soil material from the land surface by the action of rainfall and surface runof
f.
Short, steep slope (map symbol)
A narrow area of soil having slopes that are at least two slope classes steeper than the slope class of the surrounding map unit.
Shoulder
The convex, erosional surface near the top of a hillslope. A shoulder is a transition from summit to backslope.
Shrink-swell
The shrinking of soil when dry and the swelling when wet. Shrinking and swelling can damage roads, dams, building foundations, and other structures. It can also damage plant roots.
Shrub-coppice dune
A small, streamlined dune that forms around brush and clump vegetation.
Side slope (geomorphology)
A geomorphic component of hills consisting of a laterally planar area of a hillside. The overland waterflow is predominantly parallel. Side slopes are dominantly colluvium and slope-wash sediments.
Silica
A combination of silicon and oxygen. The mineral form is called quartz.
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Silica-sesquioxide ratio
The ratio of the number of molecules of silica to the number of molecules of alumina and iron oxide. The more highly weathered soils or their clay fractions in warm-temperate, humid regions, and especially those in the tropics, generally have a low ratio.
Silt
As a soil separate, individual mineral particles that range in diameter from the upper limit of clay (0.002 millimeter) to the lower limit of very fine sand (0.05 millimeter). As a soil textural class, soil that is 80 percent or more silt and less than 12 percent clay.
Siltstone
An indurated silt having the texture and composition of shale but lacking its fine lamination or fissility; a massive mudstone in which silt predominates over clay.
Similar soils
Soils that share limits of diagnostic criteria, behave and perform in a similar manner, and have similar conservation needs or management requirements for the major land uses in the survey area.
Sinkhole (map symbol)
A closed, circular or elliptical depression, commonly funnel shaped, characterized by subsurface drainage and formed either by dissolution of the surface of underlying bedrock (e.g., limestone, gypsum, or salt) or by collapse of underlying caves within bedrock. Complexes of sinkholes in carbonate-rock terrain are the main components of karst topography.
Site index
A designation of the quality of a forest site based on the height of the dominant stand at an arbitrarily chosen age. For example, if the average height attained by dominant and codominant trees in a fully stocked stand at the age of 50 years is 75 feet, the site index is 75.
Slickensides (pedogenic)
Grooved, striated, and/or glossy (shiny) slip faces on structural peds, such as wedges; produced by shrink-swell processes, most commonly in soils that have a high content of expansive clays.
Slide or slip (map symbol)
A prominent landform scar or ridge caused by fairly recent mass movement or descent of earthy material resulting from failure of earth or rock under shear stress along one or several surfaces.
Slope
The inclination of the land surface from the horizontal. Percentage of slope is the vertical distance divided by horizontal distance, then multiplied by 100.
Thus, a slope of 20 percent is a drop of 20 feet in 100 feet of horizontal distance.
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Slope alluvium
Sediment gradually transported down the slopes of mountains or hills primarily by nonchannel alluvial processes (i.e., slope-wash processes) and characterized by particle sorting. Lateral particle sorting is evident on long slopes. In a profile sequence, sediments may be distinguished by differences in size and/or specific gravity of rock fragments and may be separated by stone lines. Burnished peds and sorting of rounded or subrounded pebbles or cobbles distinguish these materials from unsorted colluvial deposits.
Slow refill
The slow filling of ponds, resulting from restricted water transmission in the soil.
Slow water movement
Restricted downward movement of water through the soil. See Saturated hydraulic conductivity.
Sodic (alkali) soil
A soil having so high a degree of alkalinity (pH 8.5 or higher) or so high a percentage of exchangeable sodium (15 percent or more of the total exchangeable bases), or both, that plant growth is restricted.
Sodic spot (map symbol)
An area where the surface layer has a sodium adsorption ratio that is at least 10 more than that of the surface layer of the named soils in the surrounding map unit. The surface layer of the surrounding soils has a sodium adsorption ratio of 5 or less.
Sodicity
The degree to which a soil is affected by exchangeable sodium. Sodicity is expressed as a sodium adsorption ratio (SAR) of a saturation extract, or the ratio of Na+ to Ca++ + Mg++. The degrees of sodicity and their respective ratios are:
Slight: Less than 13:1
Moderate: 13-30:1
Strong:
More than 30:1
Sodium adsorption ratio (SAR)
A measure of the amount of sodium (Na) relative to calcium (Ca) and magnesium (Mg) in the water extract from saturated soil paste. It is the ratio of the Na concentration divided by the square root of one-half of the Ca + Mg concentration.
Soft bedrock
Bedrock that can be excavated with trenching machines, backhoes, small rippers, and other equipment commonly used in construction.
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Soil
A natural, three-dimensional body at the earth’s surface. It is capable of supporting plants and has properties resulting from the integrated effect of climate and living matter acting on earthy parent material, as conditioned by relief and by the passage of time.
Soil separates
Mineral particles less than 2 millimeters in equivalent diameter and ranging between specified size limits. The names and sizes, in millimeters, of separates recognized in the United States are as follows:
Very coarse sand:
2.0 to 1.0
Coarse sand: 1.0 to 0.5
Medium sand: 0.5 to 0.25
Fine sand: 0.25 to 0.10
Very fine sand: 0.10 to 0.05
Silt: 0.05 to 0.002
Clay:
Less than 0.002
Solum
The upper part of a soil profile, above the C horizon, in which the processes of soil formation are active. The solum in soil consists of the A, E, and B horizons.
Generally, the characteristics of the material in these horizons are unlike those of the material below the solum. The living roots and plant and animal activities are largely confined to the solum.
Spoil area (map symbol)
A pile of earthy materials, either smoothed or uneven, resulting from human activity.
Stone line
In a vertical cross section, a line formed by scattered fragments or a discrete layer of angular and subangular rock fragments (commonly a gravel- or cobble- sized lag concentration) that formerly was draped across a topographic surface and was later buried by additional sediments. A stone line generally caps material that was subject to weathering, soil formation, and erosion before burial. Many stone lines seem to be buried erosion pavements, originally formed by sheet and rill erosion across the land surface.
Stones
Rock fragments 10 to 24 inches (25 to 60 centimeters) in diameter if rounded or 15 to 24 inches (38 to 60 centimeters) in length if flat.
Stony
Refers to a soil containing stones in numbers that interfere with or prevent tillage.
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Stony spot (map symbol)
A spot where 0.01 to 0.1 percent of the soil surface is covered by rock fragments that are more than 10 inches in diameter in areas where the surrounding soil has no surface stones.
Strath terrace
A type of stream terrace; formed as an erosional surface cut on bedrock and thinly mantled with stream deposits (alluvium).
Stream terrace
One of a series of platforms in a stream valley, flanking and more or less parallel to the stream channel, originally formed near the level of the stream; represents the remnants of an abandoned flood plain, stream bed, or valley floor produced during a former state of fluvial erosion or deposition.
Stripcropping
Growing crops in a systematic arrangement of strips or bands that provide vegetative barriers to wind erosion and water erosion.
Structure, soil
The arrangement of primary soil particles into compound particles or aggregates. The principal forms of soil structure are:
Platy: Flat and laminated
Prismatic: V
ertically elongated and having flat tops
Columnar: Vertically elongated and having rounded tops
Angular blocky: Having faces that intersect at sharp angles (planes) Subangular blocky: Having subrounded and planar faces (no sharp angles) Granular: Small structural units with curved or very irregular faces Structureless soil horizons are defined as follows:
Single grained: Entirely noncoherent (each grain by itself), as in loose sand Massive: Occurring as a coherent mass
Stubble mulch
Stubble or other crop residue left on the soil or partly worked into the soil. It protects the soil from wind erosion and water erosion after harvest, during preparation of a seedbed for the next crop, and during the early growing period of the new crop.
Subsoil
T
echnically, the B horizon; roughly, the part of the solum below plow depth.
Subsoiling
Tilling a soil below normal plow depth, ordinarily to shatter a hardpan or claypan.
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Substratum
The part of the soil below the solum.
Subsurface layer
Any surface soil horizon (A, E, AB, or EB) below the surface layer.
Summer fallow
The tillage of uncropped land during the summer to control weeds and allow storage of moisture in the soil for the growth of a later crop. A practice common in semiarid regions, where annual precipitation is not enough to produce a crop every year. Summer fallow is frequently practiced before planting winter grain.
Summit
The topographically highest position of a hillslope. It has a nearly level (planar or only slightly convex) surface.
Surface layer
The soil ordinarily moved in tillage, or its equivalent in uncultivated soil, ranging in depth from 4 to 10 inches (10 to 25 centimeters). Frequently designated as the “plow layer,” or the “Ap horizon.”
Surface soil
The A, E, AB, and EB horizons, considered collectively. It includes all subdivisions of these horizons.
T
alus
Rock fragments of any size or shape (commonly coarse and angular) derived from and lying at the base of a cliff or very steep rock slope. The accumulated mass of such loose broken rock formed chiefly by falling, rolling, or sliding.
Taxadjuncts
Soils that cannot be classified in a series recognized in the classification system. Such soils are named for a series they strongly resemble and are designated as taxadjuncts to that series because they dif fer in ways too small to
be of consequence in interpreting their use and behavior. Soils are recognized as taxadjuncts only when one or more of their characteristics are slightly outside the range defined for the family of the series for which the soils are named.
T
erminal moraine
An end moraine that marks the farthest advance of a glacier. It typically has the form of a massive arcuate or concentric ridge, or complex of ridges, and is underlain by till and other types of drift.
Terrace (conservation)
An embankment, or ridge, constructed across sloping soils on the contour or at a slight angle to the contour. The terrace intercepts surface runoff so that water soaks into the soil or flows slowly to a prepared outlet. A terrace in a field Custom Soil Resource Report
61 674
generally is built so that the field can be farmed. A terrace intended mainly for drainage has a deep channel that is maintained in permanent sod.
Terrace (geomorphology)
A steplike surface, bordering a valley floor or shoreline, that represents the former position of a flood plain, lake, or seashore. The term is usually applied both to the relatively flat summit surface (tread) that was cut or built by stream or wave action and to the steeper descending slope (scarp or riser) that has graded to a lower base level of erosion.
Terracettes
Small, irregular steplike forms on steep hillslopes, especially in pasture, formed by creep or erosion of surficial materials that may be induced or enhanced by trampling of livestock, such as sheep or cattle.
Texture, soil
The relative proportions of sand, silt, and clay particles in a mass of soil. The basic textural classes, in order of increasing proportion of fine particles, are sand, loamy sand, sandy loam, loam, silt loam, silt, sandy clay loam, clay loam, silty clay loam, sandy clay, silty clay,
and clay. The sand, loamy sand, and
sandy loam classes may be further divided by specifying “coarse,” “fine,” or “very fine.”
Thin layer
Otherwise suitable soil material that is too thin for the specified use.
Till
Dominantly unsorted and nonstratified drift, generally unconsolidated and deposited directly by a glacier without subsequent reworking by meltwater, and consisting of a heterogeneous mixture of clay, silt, sand, gravel, stones, and boulders; rock fragments of various lithologies are embedded within a finer matrix that can range from clay to sandy loam.
T
ill plain
An extensive area of level to gently undulating soils underlain predominantly by till and bounded at the distal end by subordinate recessional or end moraines.
Tilth, soil
The physical condition of the soil as related to tillage, seedbed preparation, seedling emergence, and root penetration.
Toeslope
The gently inclined surface at the base of a hillslope. Toeslopes in profile are commonly gentle and linear and are constructional surfaces forming the lower part of a hillslope continuum that grades to valley or closed-depression floors.
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Topsoil
The upper part of the soil, which is the most favorable material for plant growth.
It is ordinarily rich in organic matter and is used to topdress roadbanks, lawns, and land affected by mining.
Trace elements
Chemical elements, for example, zinc, cobalt, manganese, copper , and iron, in
soils in extremely small amounts. They are essential to plant growth.
Tread
The flat to gently sloping, topmost, laterally extensive slope of terraces, flood- plain steps, or other stepped landforms; commonly a recurring part of a series of natural steplike landforms, such as successive stream terraces.
Tuff
A generic term for any consolidated or cemented deposit that is 50 percent or more volcanic ash.
Upland
An informal, general term for the higher ground of a region, in contrast with a low-lying adjacent area, such as a valley or plain, or for land at a higher elevation than the flood plain or low stream terrace; land above the footslope zone of the hillslope continuum.
Valley fill
The unconsolidated sediment deposited by any agent (water, wind, ice, or mass wasting) so as to fill or partly fill a valley.
Variegation
Refers to patterns of contrasting colors assumed to be inherited from the parent material rather than to be the result of poor drainage.
V
arve
A sedimentary layer or a lamina or sequence of laminae deposited in a body of still water within a year. Specifically, a thin pair of graded glaciolacustrine layers seasonally deposited, usually by meltwater streams, in a glacial lake or other body of still water in front of a glacier
.
Very stony spot (map symbol)
A spot where 0.1 to 3.0 percent of the soil surface is covered by rock fragments that are more than 10 inches in diameter in areas where the surface of the surrounding soil is covered by less than 0.01 percent stones.
Water bars
Smooth, shallow ditches or depressional areas that are excavated at an angle across a sloping road. They are used to reduce the downward velocity of water and divert it off and away from the road surface. Water bars can easily be driven over if constructed properly
.
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Weathering
All physical disintegration, chemical decomposition, and biologically induced changes in rocks or other deposits at or near the earth’s surface by atmospheric or biologic agents or by circulating surface waters but involving essentially no transport of the altered material.
Well graded
Refers to soil material consisting of coarse grained particles that are well distributed over a wide range in size or diameter
. Such soil normally can be
easily increased in density and bearing properties by compaction. Contrasts with poorly graded soil.
Wet spot (map symbol)
A somewhat poorly drained to very poorly drained area that is at least two drainage classes wetter than the named soils in the surrounding map unit.
W
ilting point (or permanent wilting point)
The moisture content of soil, on an ovendry basis, at which a plant (specifically a sunflower) wilts so much that it does not recover when placed in a humid, dark chamber.
Windthrow
The uprooting and tipping over of trees by the wind.
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Lands of Branaugh
Preliminary Delineation of Wetlands/Other Waters
C-1 H. T. Harvey & Associates
January 11, 2021
Appendix C. USACE Arid West Wetland Data Forms and
OHWM Datasheets
678
US Army Corps of Engineers Arid West – Version 2.0
WETLAND DETERMINATION DATA FORM – Arid West Region
Project Site: Branaugh Property Wetland Delineation City/County: Dublin/ Alameda Sampling Date: April 10, 2020 Applicant/Owner: Randy Branaugh State: California Sampling Point: SP1 Investigator(s): J. Pastick; B. Comito Section/Township/Range: T3S R1E Landform (hillslope, terrace, etc.): Flats Local Relief (concave, convex, none): None Slope (%): 0 Subregion (LRR): LRR-C Lat: 37.702264 Long: -121.834662 Datum: NAD 83 Soil Map Unit Name: Rincon clay loam, 3 to 7 percent slopes NWI classification NA Are climatic / hydrologic conditions on the site typical for this time of year? Yes No X (If no, explain in Remarks.) Are
Vegetation
Soil or Hydrology significantly disturbed? Are “Normal Circumstances” present? Yes X No Are
Vegetation
Soil or Hydrology naturally problematic? (If needed, explain any answers in Remarks.) SUMMARY OF FINDINGS – Attach site map showing sampling point locations, transects, important features, etc.
Hydrophytic Vegetation Present? Yes No X
Is the Sampled Area
within a Wetland?
Hydric Soil Present? Yes X No Yes No X
Wetland Hydrology Present? Yes X No
Remarks:
Point taken to investigate a very slight depression in the middle of an otherwise level corral in a largely distubed and developed portion of the study area.
The roughly 300 square foot area is at the base of a ditch used to direct landscaping and agricultural run-off excavated in the southwest corner of the study area.
VEGETATION
Tree Stratum (Plot size: ) Absolute
Cover %
Dominant
Species?
Indicator
Status
Dominance Test worksheet:
1. Number of Dominant Species
That Are OBL, FACW, or FAC: 0 (A)
2. 3.
Total Number of Dominant
Species Across All Strata: 1 (B)
4. Total Cover:
Percent of Dominant Species
That Are OBL, FACW, or FAC: 0% (A/B)
Sapling/Shrub Stratum (Plot size: )
1. Prevalence Index worksheet:
2. Total % Cover of: Multiply by:
3. OBL species x 1 =
4. FACW species x 2 =
5. FAC species x 3 =
Total Cover: FACU species x 4 =
Herb Stratum (Plot size: 5 ft x 5 ft) UPL Species x 5 =
1. Erodium cicutarium 9 X UPL Column totals (A) (B)
2. Malva parviflora 1 UPL
3. Prevalence Index = B/A =
4. Hydrophytic Vegetation Indicators:
5. Dominance Text is >50%
6. Prevalence Index is 3.01
7. Morphological Adaptations1 (Provide supporting
data in Remarks or on a separate sheet)8.
Total Cover: 10 Problematic Hydrophytic Vegetation1 (Explain) Woody Vine Stratum (Plot size: ) 1 Indicators of hydric soil and wetland hydrology must be present.1.
2. Hydrophytic
Vegetation
Present?Total Cover: Yes No X
% Bare Ground in Herb Stratum 90 % Cover of Biotic Crust 0 Remarks:
Ruderal vegetation
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US Army Corps of Engineers Arid West – Version 2.0
SOIL Sampling Point: SP1
Profile Description: (Describe to the depth needed to document the indicator or confirm the absence of indicators.) Depth Matrix Redox Features
(inches) Color (moist) % Color (moist) % Type 1 Loc2 Texture Remarks 0-20 10 YR 2/1 97 5 YR 4/6 3 C M clay loam
1Type: C=Concentration, D=Depletion, RM=Reduced Matrix, CS=Covered or Coated Sand Grains 2Location: PL=Pore Lining, RC=Root Channel, M=Matrix.
Hydric Soil Indicators: (Applicable to all LRRs, unless otherwise noted.) Indicators for Problematic Hydric Soils 3:
Histosol (A1) Sandy Redox (S5) 1 cm Muck (A9) (LRR C)
Histic Epipedon (A2) Stripped Matrix (S6) 2 cm Muck (A10) (LRR B) Black Histic (A3) Loamy Mucky Mineral (F1) Reduced Vertic (F18) Hydrogen Sulfide (A4) Loamy Gleyed Matrix (F2) Red Parent Material (TF2) Stratified Layers (A5) (LRR C) Depleted Matrix (F3) Other (Explain in Remarks) 1 cm Muck (A9) (LRR D) X Redox Dark Surface (F6)
Depleted Below Dark Surface (A11) Depleted Dark Surface (F7) Thick Dark Surface (A12) Redox Depressions (F8)
Sandy Mucky Mineral (S1) Vernal Pools (F9) 3 Indicators of hydrophytic vegetation and wetland hydrology must be present, unless disturbed or
problematic.
Sandy Gleyed Matrix (S4)
Restrictive Layer (If present):
Type: None
Depth (inches): NA Hydric Soil Present? Yes X No
Remarks:
Some hydrogen sulfide odor present. Algae on soil.
HYDROLOGY
Wetland Hydrology Indicators:
Primary Indicators (minimum of one required: check all that apply) Secondary Indicators (2 or more required) X Surface Water (A1) Salt Crust (B11) Water Marks (B1) (Riverine) High Water Table (A2) Biotic Crust (B12) Sediment Deposits (B2) (Riverine) Saturation (A3) Aquatic Invertebrates (B13) Drift Deposits (B3) (Riverine) Water Marks (B1) (Nonriverine) Hydrogen Sulfide Odor (C1) Drainage Patterns (B10) Sediment Deposits (B2) (Nonriverine) Oxidized Rhizospheres along Living Roots (C3) Dry-Season Water Table (C2) Drift Deposits (B3) (Nonriverine) Presence of Reduced Iron (C4) Crayfish Burrows (C8) Surface Soil Cracks (B6) Recent Iron Reduction in Plowed Soils (C6) Saturation Visible on Aerial Imagery (C9) Inundation Visible on Aerial Imagery (B7) X Thin Muck Surface (C7) Shallow Aquitard (D3) Water-stained Leaves (B9) Other (Explain in Remarks) FAC-Neutral Test (D5) Field Observations:
Surface Water Present? Yes X No Depth (inches): 1
Water Table Present? Yes No X Depth (inches): NA
Saturation Present? Yes X No Depth (inches): 4 Wetland Hydrology Present? Yes X No (includes capillary fringe)
Describe Recorded Data (stream gauge, monitoring well, aerial photos, previous inspections), if available:
Remarks:
Some scattered ponding observed, however, this could have been from run-off from neraby roadside ditch and recent rain. Ground appears to be compacted.
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US Army Corps of Engineers Arid West Version 2.0
WETLAND DETERMINATION DATA FORM Arid West Region
Project Site: Branaugh Property Wetland Delineation City/County: Dublin/ Alameda Sampling Date: April 10, 2020 Applicant/Owner: Randy Branaugh State: California Sampling Point: SP2 Investigator(s): J. Pastick, B. Comito Section/Township/Range: T3S R1E Landform (hillslope, terrace, etc.): Flats Local Relief (concave, convex, none): None Slope (%): 0 Subregion (LRR): LRR-C Lat: 37.702223 Long: -121.834654 Datum: NAD 83 Soil Map Unit Name: Rincon clay loam, 3 to 7 percent slopes NWI classification NA Are climatic / hydrologic conditions on the site typical for this time of year? Yes No X (If no, explain in Remarks.) Are
Vegetation
Soil or Hydrology significantly disturbed? Yes X No Are
Vegetation
Soil or Hydrology naturally problematic? (If needed, explain any answers in Remarks.) SUMMARY OF FINDINGS Attach site map showing sampling point locations, transects, important features, etc.
Hydrophytic Vegetation Present? Yes No X
Is the Sampled Area
within a Wetland?
Hydric Soil Present? Yes No X Yes No X
Wetland Hydrology Present? Yes No X
Remarks:
Point taken to examine areas in corral adjacent to SP1. Lower than average rainfall for this time of year.
VEGETATION
Tree Stratum (Plot size: ) Absolute
Cover %
Dominant
Species?
Indicator
Status
Dominance Test worksheet:
1. Number of Dominant Species
That Are OBL, FACW, or FAC:
0 (A)
2. 3.
Total Number of Dominant
Species Across All Strata:
1 (B)
4. Total Cover:
Percent of Dominant Species
That Are OBL, FACW, or FAC:
0% (A/B)
Sapling/Shrub Stratum (Plot size: )
1. Prevalence Index worksheet:
2. Total % Cover of: Multiply by:
3. OBL species x 1 =
4. FACW species x 2 =
5. FAC species x 3 =
Total Cover: FACU species x 4 =
Herb Stratum (Plot size: 5 ft x 5 ft) UPL Species x 5 =
1. Erodium cicutarium 85 X UPL Column totals (A) (B)
2. Hordeum murinum 15 UPL
3. Prevalence Index = B/A =
4. Hydrophytic Vegetation Indicators:
5. Dominance Text is >50%
6. Prevalence Index is 3.01
7. Morphological Adaptations 1 (Provide supporting data in Remarks or on a separate sheet)
8. Total Cover: 100 Problematic Hydrophytic Vegetation 1 (Explain) Woody Vine Stratum (Plot size: ) 1 Indicators of hydric soil and wetland hydrology must be present.
1. 2. Hydrophytic
Vegetation
Present?
Total Cover: Yes No X
% Bare Ground in Herb Stratum 0 % Cover of Biotic Crust 0
Remarks:
Ruderal annual-forb dominated vegetation.
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US Army Corps of Engineers Arid West Version 2.0
SOIL Sampling Point: SP2
Profile Description: (Describe to the depth needed to document the indicator or confirm the absence of indicators.) Depth Matrix Redox Features
(inches) Color (moist) % Color (moist) % Type 1 Loc 2 Texture Remarks 0-18 10 YR 3/2 100 M clay loam Many fine roots
1Type: C=Concentration, D=Depletion, RM=Reduced Matrix, CS=Covered or Coated Sand Grains 2Location: PL=Pore Lining, RC=Root Channel, M=Matrix.
Hydric Soil Indicators: (Applicable to all LRRs, unless otherwise noted.) Indicators for Problematic Hydric Soils 3:
Histosol (A1) Sandy Redox (S5) 1 cm Muck (A9) (LRR C) Histic Epipedon (A2) Stripped Matrix (S6) 2 cm Muck (A10) (LRR B) Black Histic (A3) Loamy Mucky Mineral (F1) Reduced Vertic (F18) Hydrogen Sulfide (A4) Loamy Gleyed Matrix (F2) Red Parent Material (TF2) Stratified Layers (A5) (LRR C) Depleted Matrix (F3) Other (Explain in Remarks) 1 cm Muck (A9) (LRR D) Redox Dark Surface (F6)
Depleted Below Dark Surface (A11) Depleted Dark Surface (F7) Thick Dark Surface (A12) Redox Depressions (F8)
Sandy Mucky Mineral (S1) Vernal Pools (F9) 3 Indicators of hydrophytic vegetation and wetland hydrology must be present, unless disturbed or
problematic.
Sandy Gleyed Matrix (S4)
Restrictive Layer (If present):
Type: None
Depth (inches): NA Hydric Soil Present? Yes No X Remarks:
HYDROLOGY
Wetland Hydrology Indicators:
Primary Indicators (minimum of one required: check all that apply) Secondary Indicators (2 or more required) Surface Water (A1) Salt Crust (B11) Water Marks (B1) (Riverine) High Water Table (A2) Biotic Crust (B12) Sediment Deposits (B2) (Riverine) Saturation (A3) Aquatic Invertebrates (B13) Drift Deposits (B3) (Riverine) Water Marks (B1) (Nonriverine) Hydrogen Sulfide Odor (C1) Drainage Patterns (B10) Sediment Deposits (B2) (Nonriverine) Oxidized Rhizospheres along Living Roots (C3) Dry-Season Water Table (C2) Drift Deposits (B3) (Nonriverine) Presence of Reduced Iron (C4) Crayfish Burrows (C8) Surface Soil Cracks (B6) Recent Iron Reduction in Plowed Soils (C6) Saturation Visible on Aerial Imagery (C9) Inundation Visible on Aerial Imagery (B7) Thin Muck Surface (C7) Shallow Aquitard (D3) Water-stained Leaves (B9) Other (Explain in Remarks) FAC-Neutral Test (D5) Field Observations:
Surface Water Present? Yes No X Depth (inches): NA
Water Table Present? Yes No X Depth (inches): NA
Saturation Present? Yes No X Depth (inches): NA Wetland Hydrology Present? Yes No X (includes capillary fringe)
Describe Recorded Data (stream gauge, monitoring well, aerial photos, previous inspections), if available:
Remarks:
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US Army Corps of Engineers Arid West – Version 2.0
WETLAND DETERMINATION DATA FORM – Arid West Region
Project Site: Branaugh Property Wetland Delineation City/County: Dublin/ Alameda Sampling Date: April 10, 2020 Applicant/Owner: Randy Branaugh State: California Sampling Point: SP3 Investigator(s): J.Pastick, B. Comito Section/Township/Range: T3S R1E Landform (hillslope, terrace, etc.): hillslope Local Relief (concave, convex, none): None Slope (%): 0 Subregion (LRR): LRR-C Lat: 37.703649 Long: -121.834692 Datum: NAD 83 Soil Map Unit Name: Diablo clay, very deep, 3 to 15 percent slopesto 7 percent slopes NWI classification PEM Are climatic / hydrologic conditions on the site typical for this time of year? Yes No X (If no, explain in Remarks.) Are
Vegetation
Soil or Hydrology significantly disturbed? Are “Normal Circumstances” present? Yes X No Are
Vegetation
Soil or Hydrology naturally problematic? (If needed, explain any answers in Remarks.) SUMMARY OF FINDINGS – Attach site map showing sampling point locations, transects, important features, etc.
Hydrophytic Vegetation Present? Yes X No
Is the Sampled Area
within a Wetland?
Hydric Soil Present? Yes X No Yes X No
Wetland Hydrology Present? Yes X No
Remarks:
Lower than average rainfall for this time of year. Point taken to investigate a depression south of the previously verified USACE determined seasonal wetland. Point taken in SW6.
VEGETATION
Tree Stratum (Plot size: ) Absolute
Cover %
Dominant
Species?
Indicator
Status
Dominance Test worksheet:
1. Number of Dominant Species
That Are OBL, FACW, or FAC: 1 (A)
2. 3.
Total Number of Dominant
Species Across All Strata: 2 (B)
4. Total Cover:
Percent of Dominant Species
That Are OBL, FACW, or FAC: 50% (A/B)
Sapling/Shrub Stratum (Plot size: )
1. Prevalence Index worksheet:
2. Total % Cover of: Multiply by:
3. OBL species x 1 =
4. FACW species x 2 =
5. FAC species 20 x 3 = 60
Total Cover: FACU species 7 x 4 = 28
Herb Stratum (Plot size: 5 ft x 5 ft) UPL Species 2 x 5 = 10
1. Helminthotheca echioides 20 X FAC Column totals 34 (A) 98 (B)
2. Bromus diandrus 2 UPL
3. Hordeum murinum 5 X FACU Prevalence Index = B/A = 2.88
4. Erigeron canadensis 2 FACU Hydrophytic Vegetation Indicators:
5. Dominance Text is >50%
6. X Prevalence Index is 3.01
7. Morphological Adaptations1 (Provide supporting
data in Remarks or on a separate sheet)8.
Total Cover: 26 Problematic Hydrophytic Vegetation1 (Explain) Woody Vine Stratum (Plot size: ) 1 Indicators of hydric soil and wetland hydrology must be present.1.
2. Hydrophytic
Vegetation
Present?Total Cover: Yes X No
% Bare Ground in Herb Stratum 66 % Cover of Biotic Crust 0 Remarks:
Seasonal wetland vegetation dominated by bristly ox-tongue. 683
US Army Corps of Engineers Arid West – Version 2.0
SOIL Sampling Point: SP3
Profile Description: (Describe to the depth needed to document the indicator or confirm the absence of indicators.) Depth Matrix Redox Features
(inches) Color (moist) % Color (moist) % Type 1 Loc2 Texture Remarks 0-5 10 YR 3/1 100 clay loam rocky
5-20 10 YR 3/1 93 2.5 YR 3/6 7 C M clay loam Photo @ 11:24 am 1Type: C=Concentration, D=Depletion, RM=Reduced Matrix, CS=Covered or Coated Sand Grains 2Location: PL=Pore Lining, RC=Root Channel, M=Matrix.
Hydric Soil Indicators: (Applicable to all LRRs, unless otherwise noted.) Indicators for Problematic Hydric Soils 3:
Histosol (A1) Sandy Redox (S5) 1 cm Muck (A9) (LRR C)
Histic Epipedon (A2) Stripped Matrix (S6) 2 cm Muck (A10) (LRR B) Black Histic (A3) Loamy Mucky Mineral (F1) Reduced Vertic (F18) Hydrogen Sulfide (A4) Loamy Gleyed Matrix (F2) Red Parent Material (TF2) Stratified Layers (A5) (LRR C) Depleted Matrix (F3) Other (Explain in Remarks) 1 cm Muck (A9) (LRR D) X Redox Dark Surface (F6)
Depleted Below Dark Surface (A11) Depleted Dark Surface (F7) Thick Dark Surface (A12) Redox Depressions (F8)
Sandy Mucky Mineral (S1) Vernal Pools (F9) 3 Indicators of hydrophytic vegetation and wetland hydrology must be present, unless disturbed or
problematic.
Sandy Gleyed Matrix (S4)
Restrictive Layer (If present):
Type: None
Depth (inches): NA Hydric Soil Present? Yes X No
Remarks:
Hydroden sulfide odor present. Soil moist, some rocks on the top layer
HYDROLOGY
Wetland Hydrology Indicators:
Primary Indicators (minimum of one required: check all that apply) Secondary Indicators (2 or more required) Surface Water (A1) Salt Crust (B11) Water Marks (B1) (Riverine) X High Water Table (A2) Biotic Crust (B12) Sediment Deposits (B2) (Riverine) Saturation (A3) Aquatic Invertebrates (B13) Drift Deposits (B3) (Riverine) Water Marks (B1) (Nonriverine) Hydrogen Sulfide Odor (C1) Drainage Patterns (B10) Sediment Deposits (B2) (Nonriverine) Oxidized Rhizospheres along Living Roots (C3) Dry-Season Water Table (C2) Drift Deposits (B3) (Nonriverine) Presence of Reduced Iron (C4) Crayfish Burrows (C8) Surface Soil Cracks (B6) Recent Iron Reduction in Plowed Soils (C6) Saturation Visible on Aerial Imagery (C9) Inundation Visible on Aerial Imagery (B7) Thin Muck Surface (C7) Shallow Aquitard (D3) X Water-stained Leaves (B9) Other (Explain in Remarks) FAC-Neutral Test (D5) Field Observations:
Surface Water Present? Yes X No Depth (inches): 1
Water Table Present? Yes X No Depth (inches): 11 in
Saturation Present? Yes X No Depth (inches): Wetland Hydrology Present? Yes X No (includes capillary fringe)
Describe Recorded Data (stream gauge, monitoring well, aerial photos, previous inspections), if available:
Remarks:
Saturated soil; water present, contiguous with verified USACE wetlands to the north; water table present at 11 in; Algal mats on soil surface. 684
US Army Corps of Engineers Arid West – Version 2.0
WETLAND DETERMINATION DATA FORM – Arid West Region
Project Site: Branaugh Property Wetland Delineation City/County: Dublin/ Alameda Sampling Date: April 10, 2020 Applicant/Owner: Randy Branaugh State: California Sampling Point: SP4 Investigator(s): J. Pastick, B. Comito Section/Township/Range: T3S R1E Landform (hillslope, terrace, etc.): hillslope Local Relief (concave, convex, none): None Slope (%): 0 Subregion (LRR): LRR-C Lat: 37.703649 Long: -121.834657 Datum: NAD 83 Soil Map Unit Name: Diablo clay, very deep, 3 to 15 percent slopesto 7 percent slopes NWI classification NA Are climatic / hydrologic conditions on the site typical for this time of year? Yes No X (If no, explain in Remarks.) Are
Vegetation
Soil or Hydrology significantly disturbed? Are “Normal Circumstances” present? Yes X No Are
Vegetation
Soil or Hydrology naturally problematic? (If needed, explain any answers in Remarks.) SUMMARY OF FINDINGS – Attach site map showing sampling point locations, transects, important features, etc.
Hydrophytic Vegetation Present? Yes No X
Is the Sampled Area
within a Wetland?
Hydric Soil Present? Yes No X Yes No X
Wetland Hydrology Present? Yes No X
Remarks:
Paired upland point to SP3. Lower than average annual precipitation for this time of year.
VEGETATION
Tree Stratum (Plot size: ) Absolute
Cover %
Dominant
Species?
Indicator
Status
Dominance Test worksheet:
1. Number of Dominant Species
That Are OBL, FACW, or FAC: 0 (A)
2. 3.
Total Number of Dominant
Species Across All Strata: 2 (B)
4. Total Cover:
Percent of Dominant Species
That Are OBL, FACW, or FAC: 0% (A/B)
Sapling/Shrub Stratum (Plot size: )
1. Prevalence Index worksheet:
2. Total % Cover of: Multiply by:
3. OBL species x 1 =
4. FACW species x 2 =
5. FAC species x 3 =
Total Cover: FACU species x 4 =
Herb Stratum (Plot size: 5 ft x 5 ft) UPL Species x 5 =
1. Helminthotheca echioides 8 FAC Column totals (A) (B)
2. Bromus diandrus 25 X UPL
3. Lactuca serriola 5 FACU Prevalence Index = B/A =
4. Erigeron canadensis 12 X FACU Hydrophytic Vegetation Indicators:
5. Dominance Text is >50%
6. Prevalence Index is 3.01
7. Morphological Adaptations1 (Provide supporting
data in Remarks or on a separate sheet)8.
Total Cover: 50 Problematic Hydrophytic Vegetation1 (Explain) Woody Vine Stratum (Plot size: ) 1 Indicators of hydric soil and wetland hydrology must be present.1.
2. Hydrophytic
Vegetation
Present?Total Cover: Yes No X
% Bare Ground in Herb Stratum 50 % Cover of Biotic Crust 0 Remarks:
Ruderal annual grassland vegetation.
685
US Army Corps of Engineers Arid West – Version 2.0
SOIL Sampling Point: SP4
Profile Description: (Describe to the depth needed to document the indicator or confirm the absence of indicators.) Depth Matrix Redox Features
(inches) Color (moist) % Color (moist) % Type 1 Loc2 Texture Remarks 0-18 10 YR 3/1 90 clay Many fine roots
10 YR 4/4 10
1Type: C=Concentration, D=Depletion, RM=Reduced Matrix, CS=Covered or Coated Sand Grains 2Location: PL=Pore Lining, RC=Root Channel, M=Matrix.
Hydric Soil Indicators: (Applicable to all LRRs, unless otherwise noted.) Indicators for Problematic Hydric Soils 3:
Histosol (A1) Sandy Redox (S5) 1 cm Muck (A9) (LRR C)
Histic Epipedon (A2) Stripped Matrix (S6) 2 cm Muck (A10) (LRR B) Black Histic (A3) Loamy Mucky Mineral (F1) Reduced Vertic (F18) Hydrogen Sulfide (A4) Loamy Gleyed Matrix (F2) Red Parent Material (TF2) Stratified Layers (A5) (LRR C) Depleted Matrix (F3) Other (Explain in Remarks) 1 cm Muck (A9) (LRR D) Redox Dark Surface (F6)
Depleted Below Dark Surface (A11) Depleted Dark Surface (F7) Thick Dark Surface (A12) Redox Depressions (F8)
Sandy Mucky Mineral (S1) Vernal Pools (F9) 3 Indicators of hydrophytic vegetation and wetland hydrology must be present, unless disturbed or
problematic.
Sandy Gleyed Matrix (S4)
Restrictive Layer (If present):
Type: None
Depth (inches): NA Hydric Soil Present? Yes No X
Remarks:
HYDROLOGY
Wetland Hydrology Indicators:
Primary Indicators (minimum of one required: check all that apply) Secondary Indicators (2 or more required) Surface Water (A1) Salt Crust (B11) Water Marks (B1) (Riverine) High Water Table (A2) Biotic Crust (B12) Sediment Deposits (B2) (Riverine) Saturation (A3) Aquatic Invertebrates (B13) Drift Deposits (B3) (Riverine) Water Marks (B1) (Nonriverine) Hydrogen Sulfide Odor (C1) Drainage Patterns (B10) Sediment Deposits (B2) (Nonriverine) Oxidized Rhizospheres along Living Roots (C3) Dry-Season Water Table (C2) Drift Deposits (B3) (Nonriverine) Presence of Reduced Iron (C4) Crayfish Burrows (C8) Surface Soil Cracks (B6) Recent Iron Reduction in Plowed Soils (C6) Saturation Visible on Aerial Imagery (C9) Inundation Visible on Aerial Imagery (B7) Thin Muck Surface (C7) Shallow Aquitard (D3) Water-stained Leaves (B9) Other (Explain in Remarks) FAC-Neutral Test (D5) Field Observations:
Surface Water Present? Yes No X Depth (inches): NA
Water Table Present? Yes No X Depth (inches): NA
Saturation Present? Yes No X Depth (inches): NA Wetland Hydrology Present? Yes No X (includes capillary fringe)
Describe Recorded Data (stream gauge, monitoring well, aerial photos, previous inspections), if available:
Remarks:
686
US Army Corps of Engineers Arid West – Version 2.0
WETLAND DETERMINATION DATA FORM – Arid West Region
Project Site: Branaugh Property Wetland Delineation City/County: Dublin/ Alameda Sampling Date: April 9, 2020 Applicant/Owner: Randy Branaugh State: California Sampling Point: SP5 Investigator(s): J. Pastick, B. Comito Section/Township/Range: T3S R1E Landform (hillslope, terrace, etc.): flats Local Relief (concave, convex, none): Concave Slope (%): 0-1 Subregion (LRR): LRR-C Lat: 37.705005 Long: -121.835008 Datum: NAD 83 Soil Map Unit Name: Linne clay loam, 15 to 30 percent slopes, MLRA 15 NWI classification NA Are climatic / hydrologic conditions on the site typical for this time of year? Yes No X (If no, explain in Remarks.) Are
Vegetation
Soil or Hydrology significantly disturbed? Are “Normal Circumstances” present? Yes X No Are
Vegetation
Soil or Hydrology naturally problematic? (If needed, explain any answers in Remarks.) SUMMARY OF FINDINGS – Attach site map showing sampling point locations, transects, important features, etc.
Hydrophytic Vegetation Present? Yes No X
Is the Sampled Area
within a Wetland?
Hydric Soil Present? Yes No X Yes No X
Wetland Hydrology Present? Yes No X
Remarks:
Point taken to investigate the area just north of the mapped culvert in the previously verified USACE map. Lower than average annual precipitation for this time of year.
VEGETATION
Tree Stratum (Plot size: ) Absolute
Cover %
Dominant
Species?
Indicator
Status
Dominance Test worksheet:
1. Number of Dominant Species
That Are OBL, FACW, or FAC: 0 (A)
2. 3.
Total Number of Dominant
Species Across All Strata: 2 (B)
4. Total Cover:
Percent of Dominant Species
That Are OBL, FACW, or FAC: 0% (A/B)
Sapling/Shrub Stratum (Plot size: )
1. Prevalence Index worksheet:
2. Total % Cover of: Multiply by:
3. OBL species x 1 =
4. FACW species x 2 =
5. FAC species x 3 =
Total Cover: FACU species x 4 =
Herb Stratum (Plot size: 5 ft x 5 ft) UPL Species x 5 =
1. Avena fatua 30 X UPL Column totals (A) (B)
2. Hordeum murinum 25 X FACU
3. Brassica nigra 10 UPL Prevalence Index = B/A =
4. Bromus diandrus 10 UPL Hydrophytic Vegetation Indicators:
5. Festuca perennis 5 FAC Dominance Text is >50%
6. Carduus pycnocephalus 3 UPL Prevalence Index is 3.01
7. Geranium molle 2 UPL Morphological Adaptations1 (Provide supporting data in Remarks or on a separate sheet)8. Lysmachia arvensis T FAC Total Cover: 85 Problematic Hydrophytic Vegetation1 (Explain) Woody Vine Stratum (Plot size: ) 1 Indicators of hydric soil and wetland hydrology must be present.1.
2. Hydrophytic
Vegetation
Present?Total Cover: Yes No X
% Bare Ground in Herb Stratum 15 % Cover of Biotic Crust 0 Remarks:
Annual grassland vegetation.
687
US Army Corps of Engineers Arid West – Version 2.0
SOIL Sampling Point: SP5
Profile Description: (Describe to the depth needed to document the indicator or confirm the absence of indicators.) Depth Matrix Redox Features
(inches) Color (moist) % Color (moist) % Type 1 Loc2 Texture Remarks 0-2 7.5 YR 4/1 100 sandy clay Rocky, many fine roots
2-8 10 YR 4/1 70 sandy clay
10YR 5/4 30 clay
8-18 10YR 4/1 95 clay
10YR 5/4 5
1Type: C=Concentration, D=Depletion, RM=Reduced Matrix, CS=Covered or Coated Sand Grains 2Location: PL=Pore Lining, RC=Root Channel, M=Matrix.
Hydric Soil Indicators: (Applicable to all LRRs, unless otherwise noted.) Indicators for Problematic Hydric Soils 3:
Histosol (A1) Sandy Redox (S5) 1 cm Muck (A9) (LRR C)
Histic Epipedon (A2) Stripped Matrix (S6) 2 cm Muck (A10) (LRR B) Black Histic (A3) Loamy Mucky Mineral (F1) Reduced Vertic (F18) Hydrogen Sulfide (A4) Loamy Gleyed Matrix (F2) Red Parent Material (TF2) Stratified Layers (A5) (LRR C) Depleted Matrix (F3) Other (Explain in Remarks) 1 cm Muck (A9) (LRR D) X Redox Dark Surface (F6)
Depleted Below Dark Surface (A11) Depleted Dark Surface (F7) Thick Dark Surface (A12) Redox Depressions (F8)
Sandy Mucky Mineral (S1) Vernal Pools (F9) 3 Indicators of hydrophytic vegetation and wetland hydrology must be present, unless disturbed or
problematic.
Sandy Gleyed Matrix (S4)
Restrictive Layer (If present):
Type: None
Depth (inches): NA Hydric Soil Present? Yes No X
Remarks:
Lighter color soils in the matrix below two inches are likely from soil mixing and did not appear to be redox features.
HYDROLOGY
Wetland Hydrology Indicators:
Primary Indicators (minimum of one required: check all that apply) Secondary Indicators (2 or more required) Surface Water (A1) Salt Crust (B11) Water Marks (B1) (Riverine) High Water Table (A2) Biotic Crust (B12) Sediment Deposits (B2) (Riverine) Saturation (A3) Aquatic Invertebrates (B13) Drift Deposits (B3) (Riverine) Water Marks (B1) (Nonriverine) Hydrogen Sulfide Odor (C1) Drainage Patterns (B10) Sediment Deposits (B2) (Nonriverine) Oxidized Rhizospheres along Living Roots (C3) Dry-Season Water Table (C2) Drift Deposits (B3) (Nonriverine) Presence of Reduced Iron (C4) Crayfish Burrows (C8) Surface Soil Cracks (B6) Recent Iron Reduction in Plowed Soils (C6) Saturation Visible on Aerial Imagery (C9) Inundation Visible on Aerial Imagery (B7) Thin Muck Surface (C7) Shallow Aquitard (D3) Water-stained Leaves (B9) Other (Explain in Remarks) FAC-Neutral Test (D5) Field Observations:
Surface Water Present? Yes No X Depth (inches): NA
Water Table Present? Yes No X Depth (inches): NA
Saturation Present? Yes No X Depth (inches): NA Wetland Hydrology Present? Yes No X (includes capillary fringe)
Describe Recorded Data (stream gauge, monitoring well, aerial photos, previous inspections), if available:
Remarks:
Insufficient indicators.
688
US Army Corps of Engineers Arid West – Version 2.0
WETLAND DETERMINATION DATA FORM – Arid West Region
Project Site: Branaugh Property Wetland Delineation City/County: Dublin/ Alameda Sampling Date: April 9, 2020 Applicant/Owner: Randy Branaugh State: California Sampling Point: SP6 Investigator(s): J. Pastick, B. Comito Section/Township/Range: T3S R1E Landform (hillslope, terrace, etc.): Flats Local Relief (concave, convex, none): None Slope (%): 0 Subregion (LRR): LRR-C Lat: 37.705914 Long: -121.835930 Datum: NAD 83 Soil Map Unit Name: Linne clay loam, 15 to 30 percent slopes, MLRA 15 NWI classification NA Are climatic / hydrologic conditions on the site typical for this time of year? Yes No X (If no, explain in Remarks.) Are
Vegetation
Soil or Hydrology significantly disturbed? Are “Normal Circumstances” present? Yes X No Are
Vegetation
Soil or Hydrology naturally problematic? (If needed, explain any answers in Remarks.) SUMMARY OF FINDINGS – Attach site map showing sampling point locations, transects, important features, etc.
Hydrophytic Vegetation Present? Yes X No
Is the Sampled Area
within a Wetland?
Hydric Soil Present? Yes No X Yes No X
Wetland Hydrology Present? Yes No X
Remarks:
Sample point take to investigate a slight depression next to the driveway. Lower than average annual precipitation for this time of year.
VEGETATION
Tree Stratum (Plot size: ) Absolute
Cover %
Dominant
Species?
Indicator
Status
Dominance Test worksheet:
1. Number of Dominant Species
That Are OBL, FACW, or FAC: 1 (A)
2. 3.
Total Number of Dominant
Species Across All Strata: 1 (B)
4. Total Cover:
Percent of Dominant Species
That Are OBL, FACW, or FAC: 100% (A/B)
Sapling/Shrub Stratum (Plot size: )
1. Prevalence Index worksheet:
2. Total % Cover of: Multiply by:
3. OBL species x 1 =
4. FACW species x 2 =
5. FAC species x 3 =
Total Cover: FACU species x 4 =
Herb Stratum (Plot size: 5 ft x 5 ft) UPL Species x 5 =
1. Festuca perennis 45 X FAC Column totals (A) (B)
2. Hordeum murinum 15 FACU
3. Bromus hordeaceaous 15 FACU Prevalence Index = B/A =
4. Avena fatua 10 UPL Hydrophytic Vegetation Indicators:
5. Bromus diandrus 5 UPL X Dominance Text is >50%
6. Brassica nigra 5 UPL Prevalence Index is 3.01
7. Erodium moschatum 3 UPL Morphological Adaptations1 (Provide supporting data in Remarks or on a separate sheet)8. Geranium molle 2 UPL Total Cover: 100 Problematic Hydrophytic Vegetation1 (Explain) Woody Vine Stratum (Plot size: ) 1 Indicators of hydric soil and wetland hydrology must be present.1.
2. Hydrophytic
Vegetation
Present?Total Cover: Yes X No
% Bare Ground in Herb Stratum 0 % Cover of Biotic Crust 0 Remarks:
The grassland vegetation in this location is dominated by Italian rye grass, which in this case is exhibiting the features of an upland grass. Other co- dominant species of grasses and forbs are upland species. 689
US Army Corps of Engineers Arid West – Version 2.0
SOIL Sampling Point: SP6
Profile Description: (Describe to the depth needed to document the indicator or confirm the absence of indicators.) Depth Matrix Redox Features
(inches) Color (moist) % Color (moist) % Type 1 Loc2 Texture Remarks 0-5 10 YR 3/1 100 clay loam Many fine roots
5-18 10 YR 2/1 100 clay loam
1Type: C=Concentration, D=Depletion, RM=Reduced Matrix, CS=Covered or Coated Sand Grains 2Location: PL=Pore Lining, RC=Root Channel, M=Matrix.
Hydric Soil Indicators: (Applicable to all LRRs, unless otherwise noted.) Indicators for Problematic Hydric Soils 3:
Histosol (A1) Sandy Redox (S5) 1 cm Muck (A9) (LRR C)
Histic Epipedon (A2) Stripped Matrix (S6) 2 cm Muck (A10) (LRR B) Black Histic (A3) Loamy Mucky Mineral (F1) Reduced Vertic (F18) Hydrogen Sulfide (A4) Loamy Gleyed Matrix (F2) Red Parent Material (TF2) Stratified Layers (A5) (LRR C) Depleted Matrix (F3) Other (Explain in Remarks) 1 cm Muck (A9) (LRR D) Redox Dark Surface (F6)
Depleted Below Dark Surface (A11) Depleted Dark Surface (F7) Thick Dark Surface (A12) Redox Depressions (F8)
Sandy Mucky Mineral (S1) Vernal Pools (F9) 3 Indicators of hydrophytic vegetation and wetland hydrology must be present, unless disturbed or
problematic.
Sandy Gleyed Matrix (S4)
Restrictive Layer (If present):
Type: None
Depth (inches): NA Hydric Soil Present? Yes No X
Remarks:
HYDROLOGY
Wetland Hydrology Indicators:
Primary Indicators (minimum of one required: check all that apply) Secondary Indicators (2 or more required) Surface Water (A1) Salt Crust (B11) Water Marks (B1) (Riverine) High Water Table (A2) Biotic Crust (B12) Sediment Deposits (B2) (Riverine) Saturation (A3) Aquatic Invertebrates (B13) Drift Deposits (B3) (Riverine) Water Marks (B1) (Nonriverine) Hydrogen Sulfide Odor (C1) Drainage Patterns (B10) Sediment Deposits (B2) (Nonriverine) Oxidized Rhizospheres along Living Roots (C3) Dry-Season Water Table (C2) Drift Deposits (B3) (Nonriverine) Presence of Reduced Iron (C4) Crayfish Burrows (C8) Surface Soil Cracks (B6) Recent Iron Reduction in Plowed Soils (C6) Saturation Visible on Aerial Imagery (C9) Inundation Visible on Aerial Imagery (B7) Thin Muck Surface (C7) Shallow Aquitard (D3) Water-stained Leaves (B9) Other (Explain in Remarks) FAC-Neutral Test (D5) Field Observations:
Surface Water Present? Yes No X Depth (inches): NA
Water Table Present? Yes No X Depth (inches): NA
Saturation Present? Yes No X Depth (inches): NA Wetland Hydrology Present? Yes No X (includes capillary fringe)
Describe Recorded Data (stream gauge, monitoring well, aerial photos, previous inspections), if available:
Remarks:
Insufficient indicators. Area receives runoff from the driveway. 690
US Army Corps of Engineers Arid West – Version 2.0
WETLAND DETERMINATION DATA FORM – Arid West Region
Project Site: Branaugh Property Wetland Delineation City/County: Dublin/ Alameda Sampling Date: April 9, 2020 Applicant/Owner: Randy Branaugh State: California Sampling Point: SP7 Investigator(s): J.Pastick, B. Comito Section/Township/Range: T3S R1E Landform (hillslope, terrace, etc.): flats Local Relief (concave, convex, none): None Slope (%): 0-1 Subregion (LRR): LRR-C Lat: 37.705990 Long: -121.835571 Datum: NAD 83 Soil Map Unit Name: Linne clay loam, 15 to 30 percent slopes, MLRA 15 NWI classification NA Are climatic / hydrologic conditions on the site typical for this time of year? Yes No X (If no, explain in Remarks.) Are
Vegetation
Soil or Hydrology significantly disturbed? Are “Normal Circumstances” present? Yes X No Are
Vegetation
Soil or Hydrology naturally problematic? (If needed, explain any answers in Remarks.) SUMMARY OF FINDINGS – Attach site map showing sampling point locations, transects, important features, etc.
Hydrophytic Vegetation Present? Yes No X
Is the Sampled Area
within a Wetland?
Hydric Soil Present? Yes No X Yes No X
Wetland Hydrology Present? Yes No X
Remarks:
Sample point taken to investige uplands in this area. Lower than average annual precipitation for this time of year.
VEGETATION
Tree Stratum (Plot size: ) Absolute
Cover %
Dominant
Species?
Indicator
Status
Dominance Test worksheet:
1. Number of Dominant Species
That Are OBL, FACW, or FAC: 0 (A)
2. 3.
Total Number of Dominant
Species Across All Strata: 1 (B)
4. Total Cover:
Percent of Dominant Species
That Are OBL, FACW, or FAC: 0% (A/B)
Sapling/Shrub Stratum (Plot size: )
1. Prevalence Index worksheet:
2. Total % Cover of: Multiply by:
3. OBL species x 1 =
4. FACW species x 2 =
5. FAC species x 3 =
Total Cover: FACU species x 4 =
Herb Stratum (Plot size: 5 ft x 5 ft) UPL Species x 5 =
1. Hordeum murinum 55 X FACU Column totals (A) (B)
2. Bromus diandrus 15 UPL
3. Avena sp. 10 UPL Prevalence Index = B/A =
4. Festuca perennis 10 FAC Hydrophytic Vegetation Indicators:
5. Erodium moschatum 7 UPL Dominance Text is >50%
6. Sisymbrium officinale 3 UPL Prevalence Index is 3.01
7. Morphological Adaptations1 (Provide supporting
data in Remarks or on a separate sheet)8.
Total Cover: 100 Problematic Hydrophytic Vegetation1 (Explain) Woody Vine Stratum (Plot size: ) 1 Indicators of hydric soil and wetland hydrology must be present.1.
2. Hydrophytic
Vegetation
Present?Total Cover: Yes No X
% Bare Ground in Herb Stratum 0 % Cover of Biotic Crust 0 Remarks:
Annual grassland vegetation.
691
US Army Corps of Engineers Arid West – Version 2.0
SOIL Sampling Point: SP7
Profile Description: (Describe to the depth needed to document the indicator or confirm the absence of indicators.) Depth Matrix Redox Features
(inches) Color (moist) % Color (moist) % Type 1 Loc2 Texture Remarks 0-2 10 YR 3/3 100 clay loam Many fine roots
2-18 10 YR 3/2 100 clay loam Rocky soils
1Type: C=Concentration, D=Depletion, RM=Reduced Matrix, CS=Covered or Coated Sand Grains 2Location: PL=Pore Lining, RC=Root Channel, M=Matrix.
Hydric Soil Indicators: (Applicable to all LRRs, unless otherwise noted.) Indicators for Problematic Hydric Soils 3:
Histosol (A1) Sandy Redox (S5) 1 cm Muck (A9) (LRR C)
Histic Epipedon (A2) Stripped Matrix (S6) 2 cm Muck (A10) (LRR B) Black Histic (A3) Loamy Mucky Mineral (F1) Reduced Vertic (F18) Hydrogen Sulfide (A4) Loamy Gleyed Matrix (F2) Red Parent Material (TF2) Stratified Layers (A5) (LRR C) Depleted Matrix (F3) Other (Explain in Remarks) 1 cm Muck (A9) (LRR D) Redox Dark Surface (F6)
Depleted Below Dark Surface (A11) Depleted Dark Surface (F7) Thick Dark Surface (A12) Redox Depressions (F8)
Sandy Mucky Mineral (S1) Vernal Pools (F9) 3 Indicators of hydrophytic vegetation and wetland hydrology must be present, unless disturbed or
problematic.
Sandy Gleyed Matrix (S4)
Restrictive Layer (If present):
Type: None
Depth (inches): NA Hydric Soil Present? Yes No X
Remarks:
HYDROLOGY
Wetland Hydrology Indicators:
Primary Indicators (minimum of one required: check all that apply) Secondary Indicators (2 or more required) Surface Water (A1) Salt Crust (B11) Water Marks (B1) (Riverine) High Water Table (A2) Biotic Crust (B12) Sediment Deposits (B2) (Riverine) Saturation (A3) Aquatic Invertebrates (B13) Drift Deposits (B3) (Riverine) Water Marks (B1) (Nonriverine) Hydrogen Sulfide Odor (C1) Drainage Patterns (B10) Sediment Deposits (B2) (Nonriverine) Oxidized Rhizospheres along Living Roots (C3) Dry-Season Water Table (C2) Drift Deposits (B3) (Nonriverine) Presence of Reduced Iron (C4) Crayfish Burrows (C8) Surface Soil Cracks (B6) Recent Iron Reduction in Plowed Soils (C6) Saturation Visible on Aerial Imagery (C9) Inundation Visible on Aerial Imagery (B7) Thin Muck Surface (C7) Shallow Aquitard (D3) Water-stained Leaves (B9) Other (Explain in Remarks) FAC-Neutral Test (D5) Field Observations:
Surface Water Present? Yes No X Depth (inches): NA
Water Table Present? Yes No X Depth (inches): NA
Saturation Present? Yes No X Depth (inches): NA Wetland Hydrology Present? Yes No X (includes capillary fringe)
Describe Recorded Data (stream gauge, monitoring well, aerial photos, previous inspections), if available:
Remarks:
Upland landscape position.
692
US Army Corps of Engineers Arid West – Version 2.0
WETLAND DETERMINATION DATA FORM – Arid West Region
Project Site: Branaugh Property Wetland Delineation City/County: Dublin/ Alameda Sampling Date: April 9, 2020 Applicant/Owner: Randy Branaugh State: California Sampling Point: SP8 Investigator(s): J. Pastick, B. Comito Section/Township/Range: T3S R1E Landform (hillslope, terrace, etc.): Flats Local Relief (concave, convex, none): Concave Slope (%): 0 Subregion (LRR): LRR-C Lat: 37.705978 Long: -121.835138 Datum: NAD 83 Soil Map Unit Name: Linne clay loam, 15 to 30 percent slopes, MLRA 15 NWI classification NA Are climatic / hydrologic conditions on the site typical for this time of year? Yes No X (If no, explain in Remarks.) Are
Vegetation
Soil or Hydrology significantly disturbed? Are “Normal Circumstances” present? Yes X No Are
Vegetation
Soil or Hydrology naturally problematic? (If needed, explain any answers in Remarks.) SUMMARY OF FINDINGS – Attach site map showing sampling point locations, transects, important features, etc.
Hydrophytic Vegetation Present? Yes No X
Is the Sampled Area
within a Wetland?
Hydric Soil Present? Yes No X Yes No X
Wetland Hydrology Present? Yes No X
Remarks:
Placed in to investigate a slight depression in an area that was historically saturated and may have been a former stock pond. Lower than average annual precipitation for this time of year.
VEGETATION
Tree Stratum (Plot size: ) Absolute
Cover %
Dominant
Species?
Indicator
Status
Dominance Test worksheet:
1. Number of Dominant Species
That Are OBL, FACW, or FAC: 1 (A)
2. 3.
Total Number of Dominant
Species Across All Strata: 2 (B)
4. Total Cover:
Percent of Dominant Species
That Are OBL, FACW, or FAC: 50% (A/B)
Sapling/Shrub Stratum (Plot size: )
1. Prevalence Index worksheet:
2. Total % Cover of: Multiply by:
3. OBL species 0 x 1 = 0
4. FACW species 0 x 2 = 0
5. FAC species 45 x 3 = 135
Total Cover: FACU species 12 x 4 = 48
Herb Stratum (Plot size: 5 ft x 5 ft) UPL Species 45 x 5 = 225
1. Festuca perennis 45 X FAC Column totals 102 (A) 408 (B)
2. Brassica nigra 30 X UPL
3. Bromus diandrus 10 UPL Prevalence Index = B/A = 4
4. Hordeum murinum 7 FACU Hydrophytic Vegetation Indicators:
5. Bromus hordeaceus 5 UPL Dominance Text is >50%
6. Carduus pycnocephalus 5 FACU Prevalence Index is 3.01
7. Cynosorus echinatus T UPL Morphological Adaptations1 (Provide supporting data in Remarks or on a separate sheet)8.
Total Cover: 100 Problematic Hydrophytic Vegetation1 (Explain) Woody Vine Stratum (Plot size: ) 1 Indicators of hydric soil and wetland hydrology must be present.1.
2. Hydrophytic
Vegetation
Present?Total Cover: Yes No X
% Bare Ground in Herb Stratum 0 % Cover of Biotic Crust Remarks:
Annual grassland vegetation dominated by italian rye grass and other annual grasses and forbs. 693
US Army Corps of Engineers Arid West – Version 2.0
SOIL Sampling Point: SP8
Profile Description: (Describe to the depth needed to document the indicator or confirm the absence of indicators.) Depth Matrix Redox Features
(inches) Color (moist) % Color (moist) % Type 1 Loc2 Texture Remarks 0-3 10 YR 3/2 100 sandy clay Many fine roots
3-18 10 YR 5/4 30 sandy clay
10YR 4/1 70 sandy clay Sand pockets
1Type: C=Concentration, D=Depletion, RM=Reduced Matrix, CS=Covered or Coated Sand Grains 2Location: PL=Pore Lining, RC=Root Channel, M=Matrix.
Hydric Soil Indicators: (Applicable to all LRRs, unless otherwise noted.) Indicators for Problematic Hydric Soils 3:
Histosol (A1) Sandy Redox (S5) 1 cm Muck (A9) (LRR C)
Histic Epipedon (A2) Stripped Matrix (S6) 2 cm Muck (A10) (LRR B) Black Histic (A3) Loamy Mucky Mineral (F1) Reduced Vertic (F18) Hydrogen Sulfide (A4) Loamy Gleyed Matrix (F2) Red Parent Material (TF2) Stratified Layers (A5) (LRR C) Depleted Matrix (F3) Other (Explain in Remarks) 1 cm Muck (A9) (LRR D) Redox Dark Surface (F6)
Depleted Below Dark Surface (A11) Depleted Dark Surface (F7) Thick Dark Surface (A12) Redox Depressions (F8)
Sandy Mucky Mineral (S1) Vernal Pools (F9) 3 Indicators of hydrophytic vegetation and wetland hydrology must be present, unless disturbed or
problematic.
Sandy Gleyed Matrix (S4)
Restrictive Layer (If present):
Type: None
Depth (inches): NA Hydric Soil Present? Yes No X
Remarks:
Lighter color soils in the matrix below three inches are likely from soil mixing and did not appear to be redox features.
HYDROLOGY
Wetland Hydrology Indicators:
Primary Indicators (minimum of one required: check all that apply) Secondary Indicators (2 or more required) Surface Water (A1) Salt Crust (B11) Water Marks (B1) (Riverine) High Water Table (A2) Biotic Crust (B12) Sediment Deposits (B2) (Riverine) Saturation (A3) Aquatic Invertebrates (B13) Drift Deposits (B3) (Riverine) Water Marks (B1) (Nonriverine) Hydrogen Sulfide Odor (C1) Drainage Patterns (B10) Sediment Deposits (B2) (Nonriverine) Oxidized Rhizospheres along Living Roots (C3) Dry-Season Water Table (C2) Drift Deposits (B3) (Nonriverine) Presence of Reduced Iron (C4) Crayfish Burrows (C8) Surface Soil Cracks (B6) Recent Iron Reduction in Plowed Soils (C6) X Saturation Visible on Aerial Imagery (C9) Inundation Visible on Aerial Imagery (B7) Thin Muck Surface (C7) Shallow Aquitard (D3) Water-stained Leaves (B9) Other (Explain in Remarks) FAC-Neutral Test (D5) Field Observations:
Surface Water Present? Yes No X Depth (inches): NA
Water Table Present? Yes No X Depth (inches): NA
Saturation Present? Yes No X Depth (inches): NA Wetland Hydrology Present? Yes No X (includes capillary fringe)
Describe Recorded Data (stream gauge, monitoring well, aerial photos, previous inspections), if available:
Remarks:
Sample point was taken in a location that appeared on historic aerials to have once been a stock pond. No current indicators of hydrology were observed.
694
US Army Corps of Engineers Arid West – Version 2.0
WETLAND DETERMINATION DATA FORM – Arid West Region
Project Site: Branaugh Property Wetland Delineation City/County: Dublin/ Alameda Sampling Date: April 9, 2020 Applicant/Owner: Randy Branaugh State: California Sampling Point: SP9 Investigator(s): J. Pastick, B. Comito Section/Township/Range: T3S R1E Landform (hillslope, terrace, etc.): flats Local Relief (concave, convex, none): None Slope (%): 0 Subregion (LRR): LRR-C Lat: 37.706128 Long: -121.835051 Datum: NAD 83 Soil Map Unit Name: Linne clay loam, 15 to 30 percent slopes, MLRA 15 NWI classification NA Are climatic / hydrologic conditions on the site typical for this time of year? Yes No X (If no, explain in Remarks.) Are
Vegetation
Soil or Hydrology significantly disturbed? Are “Normal Circumstances” present? Yes X No Are
Vegetation
Soil or Hydrology naturally problematic? (If needed, explain any answers in Remarks.) SUMMARY OF FINDINGS – Attach site map showing sampling point locations, transects, important features, etc.
Hydrophytic Vegetation Present? Yes No X
Is the Sampled Area
within a Wetland?
Hydric Soil Present? Yes No X Yes No X
Wetland Hydrology Present? Yes No X
Remarks:
Sample point taken to investigate uplands in the area. Lower than average annual precipitation for this time of year.
VEGETATION
Tree Stratum (Plot size: ) Absolute
Cover %
Dominant
Species?
Indicator
Status
Dominance Test worksheet:
1. Number of Dominant Species
That Are OBL, FACW, or FAC: 0 (A)
2. 3.
Total Number of Dominant
Species Across All Strata: 3 (B)
4. Total Cover:
Percent of Dominant Species
That Are OBL, FACW, or FAC: 0% (A/B)
Sapling/Shrub Stratum (Plot size: )
1. Prevalence Index worksheet:
2. Total % Cover of: Multiply by:
3. OBL species x 1 =
4. FACW species x 2 =
5. FAC species x 3 =
Total Cover: FACU species x 4 =
Herb Stratum (Plot size: 5 ft x 5 ft) UPL Species x 5 =
1. Brassica nigra 45 X UPL Column totals (A) (B)
2. Carduus pycnocephalus 20 X UPL
3. Hordeum murinum 20 X FACU Prevalence Index = B/A =
4. Bromus diandrus 10 UPL Hydrophytic Vegetation Indicators:
5. Geranium dissectm 5 UPL Dominance Text is >50%
6. Prevalence Index is 3.01
7. Morphological Adaptations1 (Provide supporting
data in Remarks or on a separate sheet)8.
Total Cover: 100 Problematic Hydrophytic Vegetation1 (Explain) Woody Vine Stratum (Plot size: ) 1 Indicators of hydric soil and wetland hydrology must be present.1.
2. Hydrophytic
Vegetation
Present?Total Cover: Yes No X
% Bare Ground in Herb Stratum 0 % Cover of Biotic Crust 0 Remarks:
Annual grassland vegetation.
695
US Army Corps of Engineers Arid West – Version 2.0
SOIL Sampling Point: SP9
Profile Description: (Describe to the depth needed to document the indicator or confirm the absence of indicators.) Depth Matrix Redox Features
(inches) Color (moist) % Color (moist) % Type 1 Loc2 Texture Remarks 0-3 10 YR 3/2 100 sandy clay Many fine roots
3-18 10 YR 5/4 30 sandy clay
10YR 4/1 70 sandy clay Pockets of sand
1Type: C=Concentration, D=Depletion, RM=Reduced Matrix, CS=Covered or Coated Sand Grains 2Location: PL=Pore Lining, RC=Root Channel, M=Matrix.
Hydric Soil Indicators: (Applicable to all LRRs, unless otherwise noted.) Indicators for Problematic Hydric Soils 3:
Histosol (A1) Sandy Redox (S5) 1 cm Muck (A9) (LRR C)
Histic Epipedon (A2) Stripped Matrix (S6) 2 cm Muck (A10) (LRR B) Black Histic (A3) Loamy Mucky Mineral (F1) Reduced Vertic (F18) Hydrogen Sulfide (A4) Loamy Gleyed Matrix (F2) Red Parent Material (TF2) Stratified Layers (A5) (LRR C) Depleted Matrix (F3) Other (Explain in Remarks) 1 cm Muck (A9) (LRR D) Redox Dark Surface (F6)
Depleted Below Dark Surface (A11) Depleted Dark Surface (F7) Thick Dark Surface (A12) Redox Depressions (F8)
Sandy Mucky Mineral (S1) Vernal Pools (F9) 3 Indicators of hydrophytic vegetation and wetland hydrology must be present, unless disturbed or
problematic.
Sandy Gleyed Matrix (S4)
Restrictive Layer (If present):
Type: None
Depth (inches): NA Hydric Soil Present? Yes No X
Remarks:
Lighter color soils in the matrix below three inches are likely from soil mixing and did not appear to be redox features.
HYDROLOGY
Wetland Hydrology Indicators:
Primary Indicators (minimum of one required: check all that apply) Secondary Indicators (2 or more required) Surface Water (A1) Salt Crust (B11) Water Marks (B1) (Riverine) High Water Table (A2) Biotic Crust (B12) Sediment Deposits (B2) (Riverine) Saturation (A3) Aquatic Invertebrates (B13) Drift Deposits (B3) (Riverine) Water Marks (B1) (Nonriverine) Hydrogen Sulfide Odor (C1) Drainage Patterns (B10) Sediment Deposits (B2) (Nonriverine) Oxidized Rhizospheres along Living Roots (C3) Dry-Season Water Table (C2) Drift Deposits (B3) (Nonriverine) Presence of Reduced Iron (C4) Crayfish Burrows (C8) Surface Soil Cracks (B6) Recent Iron Reduction in Plowed Soils (C6) Saturation Visible on Aerial Imagery (C9) Inundation Visible on Aerial Imagery (B7) Thin Muck Surface (C7) Shallow Aquitard (D3) Water-stained Leaves (B9) Other (Explain in Remarks) FAC-Neutral Test (D5) Field Observations:
Surface Water Present? Yes No X Depth (inches): NA
Water Table Present? Yes No X Depth (inches): NA
Saturation Present? Yes No X Depth (inches): NA Wetland Hydrology Present? Yes No X (includes capillary fringe)
Describe Recorded Data (stream gauge, monitoring well, aerial photos, previous inspections), if available:
Remarks:
Upland landscape position.
696
US Army Corps of Engineers Arid West – Version 2.0
WETLAND DETERMINATION DATA FORM – Arid West Region
Project Site: Branaugh Property Wetland Delineation City/County: Dublin/ Alameda Sampling Date: April 9, 2020 Applicant/Owner: Randy Branaugh State: California Sampling Point: SP10 Investigator(s): J. Pastic, B. Comito Section/Township/Range: T3S R1E Landform (hillslope, terrace, etc.): Flat Local Relief (concave, convex, none): None Slope (%): 0 Subregion (LRR): LRR-C Lat: 37.706706 Long: -121.835220 Datum: NAD 83 Soil Map Unit Name: Linne clay loam, 15 to 30 percent slopes, MLRA 15 NWI classification PEM 1A Are climatic / hydrologic conditions on the site typical for this time of year? Yes No X (If no, explain in Remarks.) Are
Vegetation
Soil or Hydrology significantly disturbed? Are “Normal Circumstances” present? Yes X No Are
Vegetation
Soil or Hydrology naturally problematic? (If needed, explain any answers in Remarks.) SUMMARY OF FINDINGS – Attach site map showing sampling point locations, transects, important features, etc.
Hydrophytic Vegetation Present? Yes X No
Is the Sampled Area
within a Wetland?
Hydric Soil Present? Yes X No Yes X No
Wetland Hydrology Present? Yes X No
Remarks:
Sample point taken to characterize seasonal wetlands along the swale - Point taken inside SW5. Lower than average annual precipitation for this time of year.
VEGETATION
Tree Stratum (Plot size: ) Absolute
Cover %
Dominant
Species?
Indicator
Status
Dominance Test worksheet:
1. Number of Dominant Species
That Are OBL, FACW, or FAC: 2 (A)
2. 3.
Total Number of Dominant
Species Across All Strata: 2 (B)
4. Total Cover:
Percent of Dominant Species
That Are OBL, FACW, or FAC: 100% (A/B)
Sapling/Shrub Stratum (Plot size: )
1. Prevalence Index worksheet:
2. Total % Cover of: Multiply by:
3. OBL species x 1 =
4. FACW species x 2 =
5. FAC species x 3 =
Total Cover: FACU species x 4 =
Herb Stratum (Plot size: 5 ft x 5 ft) UPL Species x 5 =
1. Juncus mexicanus 40 X FACW Column totals (A) (B)
2. Plantago lancelota 20 X FAC
3. Trifolium sp. 15 FACU Prevalence Index = B/A =
4. Festuca perennis 15 FAC Hydrophytic Vegetation Indicators:
5. Bromus diandrus 2 UPL X Dominance Text is >50%
6. Helminthotheca echioides 2 FAC Prevalence Index is 3.01
7. Medicago polymorpha 2 FACU Morphological Adaptations1 (Provide supporting data in Remarks or on a separate sheet)8. Hordeum murinum 2 FACU Total Cover: 100 Problematic Hydrophytic Vegetation1 (Explain) Woody Vine Stratum (Plot size: ) 1 Indicators of hydric soil and wetland hydrology must be present.1.
2. Hydrophytic
Vegetation
Present?Total Cover: Yes X No
% Bare Ground in Herb Stratum 0 % Cover of Biotic Crust 0 Remarks:
Seasonal wetland vegetation dominated by Mexican rush.
697
US Army Corps of Engineers Arid West – Version 2.0
SOIL Sampling Point: SP10
Profile Description: (Describe to the depth needed to document the indicator or confirm the absence of indicators.) Depth Matrix Redox Features
(inches) Color (moist) % Color (moist) % Type 1 Loc2 Texture Remarks 0-8 10 YR 3/2 100 clay
8-12 10 YR 5/4 97 2.5 YR 3/6 3 C M clay
12-18 10YR 4/1 90 2.5 YR 3/6 10 C M clay
1Type: C=Concentration, D=Depletion, RM=Reduced Matrix, CS=Covered or Coated Sand Grains 2Location: PL=Pore Lining, RC=Root Channel, M=Matrix.
Hydric Soil Indicators: (Applicable to all LRRs, unless otherwise noted.) Indicators for Problematic Hydric Soils 3:
Histosol (A1) Sandy Redox (S5) 1 cm Muck (A9) (LRR C)
Histic Epipedon (A2) Stripped Matrix (S6) 2 cm Muck (A10) (LRR B) Black Histic (A3) Loamy Mucky Mineral (F1) Reduced Vertic (F18) Hydrogen Sulfide (A4) Loamy Gleyed Matrix (F2) Red Parent Material (TF2) Stratified Layers (A5) (LRR C) Depleted Matrix (F3) Other (Explain in Remarks) 1 cm Muck (A9) (LRR D) X Redox Dark Surface (F6)
Depleted Below Dark Surface (A11) Depleted Dark Surface (F7) Thick Dark Surface (A12) Redox Depressions (F8)
Sandy Mucky Mineral (S1) Vernal Pools (F9) 3 Indicators of hydrophytic vegetation and wetland hydrology must be present, unless disturbed or
problematic.
Sandy Gleyed Matrix (S4)
Restrictive Layer (If present):
Type: None
Depth (inches): NA Hydric Soil Present? Yes X No
Remarks:
Soil not saturated, but moist at 12 inches.
HYDROLOGY
Wetland Hydrology Indicators:
Primary Indicators (minimum of one required: check all that apply) Secondary Indicators (2 or more required) Surface Water (A1) Salt Crust (B11) Water Marks (B1) (Riverine) High Water Table (A2) Biotic Crust (B12) Sediment Deposits (B2) (Riverine) Saturation (A3) Aquatic Invertebrates (B13) Drift Deposits (B3) (Riverine) Water Marks (B1) (Nonriverine) Hydrogen Sulfide Odor (C1) Drainage Patterns (B10) Sediment Deposits (B2) (Nonriverine) Oxidized Rhizospheres along Living Roots (C3) Dry-Season Water Table (C2) Drift Deposits (B3) (Nonriverine) Presence of Reduced Iron (C4) Crayfish Burrows (C8) X Surface Soil Cracks (B6) Recent Iron Reduction in Plowed Soils (C6) X Saturation Visible on Aerial Imagery (C9) Inundation Visible on Aerial Imagery (B7) Thin Muck Surface (C7) Shallow Aquitard (D3) Water-stained Leaves (B9) Other (Explain in Remarks) FAC-Neutral Test (D5) Field Observations:
Surface Water Present? Yes No X Depth (inches): NA
Water Table Present? Yes No X Depth (inches): NA
Saturation Present? Yes No X Depth (inches): NA Wetland Hydrology Present? Yes X No (includes capillary fringe)
Describe Recorded Data (stream gauge, monitoring well, aerial photos, previous inspections), if available:
Remarks:
Wetland vegetation occurs in a depression that is seasonally inundated. 698
US Army Corps of Engineers Arid West – Version 2.0
WETLAND DETERMINATION DATA FORM – Arid West Region
Project Site: Branaugh Property Wetland Delineation City/County: Dublin/ Alameda Sampling Date: April 10, 2020 Applicant/Owner: Randy Branaugh State: California Sampling Point: SP11 Investigator(s): J. pastick, . Comito Section/Township/Range: T3S R1E Landform (hillslope, terrace, etc.): Flat Local Relief (concave, convex, none): None Slope (%): 1-2 Subregion (LRR): LRR-C Lat: 37.706712 Long: -121.835125 Datum: NAD 83 Soil Map Unit Name: Diablo clay, very deep, 3 to 15 percent slopesto 7 percent slopes NWI classification NA Are climatic / hydrologic conditions on the site typical for this time of year? Yes No X (If no, explain in Remarks.) Are
Vegetation
Soil or Hydrology significantly disturbed? Are “Normal Circumstances” present? Yes X No Are
Vegetation
Soil or Hydrology naturally problematic? (If needed, explain any answers in Remarks.) SUMMARY OF FINDINGS – Attach site map showing sampling point locations, transects, important features, etc.
Hydrophytic Vegetation Present? Yes No X
Is the Sampled Area
within a Wetland?
Hydric Soil Present? Yes No X Yes No X
Wetland Hydrology Present? Yes No X
Remarks:
Paired upland point to SP10. Lower than average annual precipitation for this time of year.
VEGETATION
Tree Stratum (Plot size: ) Absolute
Cover %
Dominant
Species?
Indicator
Status
Dominance Test worksheet:
1. Number of Dominant Species
That Are OBL, FACW, or FAC: 1 (A)
2. 3.
Total Number of Dominant
Species Across All Strata: 2 (B)
4. Total Cover:
Percent of Dominant Species
That Are OBL, FACW, or FAC: 50% (A/B)
Sapling/Shrub Stratum (Plot size: )
1. Prevalence Index worksheet:
2. Total % Cover of: Multiply by:
3. OBL species 0 x 1 = 0
4. FACW species 0 x 2 = 0
5. FAC species 25 x 3 = 75
Total Cover: FACU species 5 x 4 = 20
Herb Stratum (Plot size: 5 ft x 5 ft) UPL Species 50 x 5 = 250
1. Bromus diandrus 35 X UPL Column totals 100 (A) 345 (B)
2. Festuca perennis 25 X FAC
3. Geranium mollis 10 UPL Prevalence Index = B/A = 3.45
4. Brassica nigra 5 UPL Hydrophytic Vegetation Indicators:
5. Hordeum murinum 5 FACU Dominance Text is >50%
6. FACU Prevalence Index is 3.01
7. Morphological Adaptations1 (Provide supporting
data in Remarks or on a separate sheet)8.
Total Cover: 80 Problematic Hydrophytic Vegetation1 (Explain) Woody Vine Stratum (Plot size: ) 1 Indicators of hydric soil and wetland hydrology must be present.1.
2. Hydrophytic
Vegetation
Present?Total Cover: Yes No X
% Bare Ground in Herb Stratum 20 % Cover of Biotic Crust 0 Remarks:
Annual grassland vegetation.
699
US Army Corps of Engineers Arid West – Version 2.0
SOIL Sampling Point: SP11
Profile Description: (Describe to the depth needed to document the indicator or confirm the absence of indicators.) Depth Matrix Redox Features
(inches) Color (moist) % Color (moist) % Type 1 Loc2 Texture Remarks 0-5 7.5 YR 3/2 100 clay many fine roots
5-18 10 YR 4/1 100
1Type: C=Concentration, D=Depletion, RM=Reduced Matrix, CS=Covered or Coated Sand Grains 2Location: PL=Pore Lining, RC=Root Channel, M=Matrix.
Hydric Soil Indicators: (Applicable to all LRRs, unless otherwise noted.) Indicators for Problematic Hydric Soils 3:
Histosol (A1) Sandy Redox (S5) 1 cm Muck (A9) (LRR C)
Histic Epipedon (A2) Stripped Matrix (S6) 2 cm Muck (A10) (LRR B) Black Histic (A3) Loamy Mucky Mineral (F1) Reduced Vertic (F18) Hydrogen Sulfide (A4) Loamy Gleyed Matrix (F2) Red Parent Material (TF2) Stratified Layers (A5) (LRR C) Depleted Matrix (F3) Other (Explain in Remarks) 1 cm Muck (A9) (LRR D) Redox Dark Surface (F6)
Depleted Below Dark Surface (A11) Depleted Dark Surface (F7) Thick Dark Surface (A12) Redox Depressions (F8)
Sandy Mucky Mineral (S1) Vernal Pools (F9) 3 Indicators of hydrophytic vegetation and wetland hydrology must be present, unless disturbed or
problematic.
Sandy Gleyed Matrix (S4)
Restrictive Layer (If present):
Type: None
Depth (inches): NA Hydric Soil Present? Yes No X
Remarks:
Soil is dry in the upper 18 inches.
HYDROLOGY
Wetland Hydrology Indicators:
Primary Indicators (minimum of one required: check all that apply) Secondary Indicators (2 or more required) Surface Water (A1) Salt Crust (B11) Water Marks (B1) (Riverine) High Water Table (A2) Biotic Crust (B12) Sediment Deposits (B2) (Riverine) Saturation (A3) Aquatic Invertebrates (B13) Drift Deposits (B3) (Riverine) Water Marks (B1) (Nonriverine) Hydrogen Sulfide Odor (C1) Drainage Patterns (B10) Sediment Deposits (B2) (Nonriverine) Oxidized Rhizospheres along Living Roots (C3) Dry-Season Water Table (C2) Drift Deposits (B3) (Nonriverine) Presence of Reduced Iron (C4) Crayfish Burrows (C8) Surface Soil Cracks (B6) Recent Iron Reduction in Plowed Soils (C6) Saturation Visible on Aerial Imagery (C9) Inundation Visible on Aerial Imagery (B7) Thin Muck Surface (C7) Shallow Aquitard (D3) Water-stained Leaves (B9) Other (Explain in Remarks) FAC-Neutral Test (D5) Field Observations:
Surface Water Present? Yes No X Depth (inches): NA
Water Table Present? Yes No X Depth (inches): NA
Saturation Present? Yes No X Depth (inches): NA Wetland Hydrology Present? Yes No X (includes capillary fringe)
Describe Recorded Data (stream gauge, monitoring well, aerial photos, previous inspections), if available:
Remarks:
Upland landscape position.
700
US Army Corps of Engineers Arid West – Version 2.0
WETLAND DETERMINATION DATA FORM – Arid West Region
Project Site: Drier conditons than normal for this time of year. (Lower than average rain fall).
City/County: Dublin/ Alameda Sampling Date: April 9, 2020 Applicant/Owner: Randy Branaugh State: California Sampling Point: SP12 Investigator(s): J. Pastick, B. Comito Section/Township/Range: T3S R1E Landform (hillslope, terrace, etc.): Flat Local Relief (concave, convex, none): Concave Slope (%): 0 Subregion (LRR): LRR-C Lat: 37.708634 Long: -121.835238 Datum: NAD 83 Soil Map Unit Name: Linne clay loam, 15 to 30 percent slopes, MLRA 15 NWI classification PEM1A Are climatic / hydrologic conditions on the site typical for this time of year? Yes No X (If no, explain in Remarks.) Are
Vegetation
Soil or Hydrology significantly disturbed? Are “Normal Circumstances” present? Yes X No Are
Vegetation
Soil or Hydrology naturally problematic? (If needed, explain any answers in Remarks.) SUMMARY OF FINDINGS – Attach site map showing sampling point locations, transects, important features, etc.
Hydrophytic Vegetation Present? Yes X No
Is the Sampled Area
within a Wetland?Hydric Soil Present? Yes X No Yes X No Wetland Hydrology Present? Yes X No
Remarks:
Sample point taken in seasonal wetland, SW1. Lower than average annual precipitation for this time of year.
VEGETATION
Tree Stratum (Plot size: ) Absolute
Cover %
Dominant
Species?
Indicator
Status
Dominance Test worksheet:
1. Number of Dominant Species
That Are OBL, FACW, or FAC: 2 (A)
2. 3.
Total Number of Dominant
Species Across All Strata: 2 (B)
4. Total Cover:
Percent of Dominant Species
That Are OBL, FACW, or FAC: 100% (A/B)
Sapling/Shrub Stratum (Plot size: )
1. Prevalence Index worksheet:
2. Total % Cover of: Multiply by:
3. OBL species x 1 =
4. FACW species x 2 =
5. FAC species x 3 =
Total Cover: FACU species x 4 =
Herb Stratum (Plot size: 5 ft x 5 ft) UPL Species x 5 =
1. Juncus mexicanus 35 X FACW Column totals (A) (B)
2. Festuca perennis 25 X FAC
3. Geranium molle 15 UPL Prevalence Index = B/A =
4. Helminthotheca echioides 10 FAC Hydrophytic Vegetation Indicators:
5. Medicago polymorpha 5 FACU X Dominance Text is >50%
6. Bromus diandrus 3 UPL Prevalence Index is 3.01
7. Hordeum murinum 3 UPL Morphological Adaptations1 (Provide supporting data in Remarks or on a separate sheet)8. Avena fatua 2 UPL Total Cover: 98 Problematic Hydrophytic Vegetation1 (Explain) Woody Vine Stratum (Plot size: ) 1 Indicators of hydric soil and wetland hydrology must be present.1.
2. Hydrophytic
Vegetation
Present?
Total Cover: Yes X No
% Bare Ground in Herb Stratum 2 % Cover of Biotic Crust 0 Remarks:
Seasonal wetland vegetation dominated by Mexican rush and Italian rye grass. 701
US Army Corps of Engineers Arid West – Version 2.0
SOIL Sampling Point: SP12
Profile Description: (Describe to the depth needed to document the indicator or confirm the absence of indicators.) Depth Matrix Redox Features
(inches) Color (moist) % Color (moist) % Type 1 Loc2 Texture Remarks 0-5 10 YR 2/1 100 clay roots to 5 in; patches of small rocks and sand
5-20 10 YR 2/1 95 2.5 YR 3/6 5 C M clay
1Type: C=Concentration, D=Depletion, RM=Reduced Matrix, CS=Covered or Coated Sand Grains 2Location: PL=Pore Lining, RC=Root Channel, M=Matrix.
Hydric Soil Indicators: (Applicable to all LRRs, unless otherwise noted.) Indicators for Problematic Hydric Soils 3:
Histosol (A1) Sandy Redox (S5) 1 cm Muck (A9) (LRR C)
Histic Epipedon (A2) Stripped Matrix (S6) 2 cm Muck (A10) (LRR B) Black Histic (A3) Loamy Mucky Mineral (F1) Reduced Vertic (F18) Hydrogen Sulfide (A4) Loamy Gleyed Matrix (F2) Red Parent Material (TF2) Stratified Layers (A5) (LRR C) Depleted Matrix (F3) Other (Explain in Remarks) 1 cm Muck (A9) (LRR D) X Redox Dark Surface (F6)
Depleted Below Dark Surface (A11) Depleted Dark Surface (F7) Thick Dark Surface (A12) Redox Depressions (F8)
Sandy Mucky Mineral (S1) Vernal Pools (F9) 3 Indicators of hydrophytic vegetation and wetland hydrology must be present, unless disturbed or
problematic.Sandy Gleyed Matrix (S4)
Restrictive Layer (If present):
Type: None
Depth (inches): NA Hydric Soil Present? Yes X No
Remarks:
Distinct redox concentrations below the top five inches.
HYDROLOGY
Wetland Hydrology Indicators:
Primary Indicators (minimum of one required: check all that apply) Secondary Indicators (2 or more required) Surface Water (A1) Salt Crust (B11) Water Marks (B1) (Riverine) High Water Table (A2) Biotic Crust (B12) Sediment Deposits (B2) (Riverine) Saturation (A3) Aquatic Invertebrates (B13) Drift Deposits (B3) (Riverine) Water Marks (B1) (Nonriverine) Hydrogen Sulfide Odor (C1) Drainage Patterns (B10) Sediment Deposits (B2) (Nonriverine) Oxidized Rhizospheres along Living Roots (C3) Dry-Season Water Table (C2) Drift Deposits (B3) (Nonriverine) Presence of Reduced Iron (C4) Crayfish Burrows (C8) Surface Soil Cracks (B6) Recent Iron Reduction in Plowed Soils (C6) Saturation Visible on Aerial Imagery (C9) X Inundation Visible on Aerial Imagery (B7) Thin Muck Surface (C7) Shallow Aquitard (D3) Water-stained Leaves (B9) Other (Explain in Remarks) FAC-Neutral Test (D5) Field Observations:
Surface Water Present? Yes No X Depth (inches): NA
Water Table Present? Yes No X Depth (inches): NA
Saturation Present? Yes No X Depth (inches): NA Wetland Hydrology Present? Yes X No (includes capillary fringe)
Describe Recorded Data (stream gauge, monitoring well, aerial photos, previous inspections), if available:
Remarks:
Inundation visible on aerial - wetland feature is situated in a depression along the ephemeral stream that is seasonally inundated. 702
US Army Corps of Engineers Arid West – Version 2.0
WETLAND DETERMINATION DATA FORM – Arid West Region
Project Site: Branaugh Property Wetland Delineation City/County: Dublin/ Alameda Sampling Date: April 10, 2020 Applicant/Owner: Randy Branaugh State: California Sampling Point: SP13 Investigator(s): Jillian Pastick Section/Township/Range: T3S R1E Landform (hillslope, terrace, etc.): Hillslope Local Relief (concave, convex, none): None Slope (%): 5 Subregion (LRR): LRR-C Lat: 37.708640 Long: -121.835297 Datum: NAD 83 Soil Map Unit Name: Diablo clay, very deep, 3 to 15 percent slopesto 7 percent slopes NWI classification NA Are climatic / hydrologic conditions on the site typical for this time of year? Yes No X (If no, explain in Remarks.) Are
Vegetation
Soil or Hydrology significantly disturbed? Are “Normal Circumstances” present? Yes No X Are
Vegetation
Soil or Hydrology naturally problematic? (If needed, explain any answers in Remarks.) SUMMARY OF FINDINGS – Attach site map showing sampling point locations, transects, important features, etc.
Hydrophytic Vegetation Present? Yes No X
Is the Sampled Area
within a Wetland?
Hydric Soil Present? Yes No X Yes No X
Wetland Hydrology Present? Yes No X
Remarks:
Upland paired point to SP12. Lower than average annual precipitation for this time of year.
VEGETATION
Tree Stratum (Plot size: ) Absolute
Cover %
Dominant
Species?
Indicator
Status
Dominance Test worksheet:
1. Number of Dominant Species
That Are OBL, FACW, or FAC: 0 (A)
2. 3.
Total Number of Dominant
Species Across All Strata: 2 (B)
4. Total Cover:
Percent of Dominant Species
That Are OBL, FACW, or FAC: 0% (A/B)
Sapling/Shrub Stratum (Plot size: )
1. Prevalence Index worksheet:
2. Total % Cover of: Multiply by:
3. OBL species x 1 =
4. FACW species x 2 =
5. FAC species x 3 =
Total Cover: FACU species x 4 =
Herb Stratum (Plot size: 5 ft x 5 ft) UPL Species x 5 =
1. Brassica nigra 35 X UPL Column totals (A) (B)
2. Bromus diandrus 25 X UPL
3. Festuca perennis 10 FAC Prevalence Index = B/A =
4. Hordeum murinum 10 FACU Hydrophytic Vegetation Indicators:
5. Geranium molle 10 UPL Dominance Text is >50%
6. Helminthotheca echioides 5 FAC Prevalence Index is 3.01
7. Avena fatua 5 UPL Morphological Adaptations1 (Provide supporting data in Remarks or on a separate sheet)8. Lactuca serriola 3 FACU Total Cover: 103 Problematic Hydrophytic Vegetation1 (Explain) Woody Vine Stratum (Plot size: ) 1 Indicators of hydric soil and wetland hydrology must be present.1.
2. Hydrophytic
Vegetation
Present?Total Cover: Yes No X
% Bare Ground in Herb Stratum 0 % Cover of Biotic Crust 0 Remarks:
Annual grassland vegetation.
703
US Army Corps of Engineers Arid West – Version 2.0
SOIL Sampling Point: SP13
Profile Description: (Describe to the depth needed to document the indicator or confirm the absence of indicators.) Depth Matrix Redox Features
(inches) Color (moist) % Color (moist) % Type 1 Loc2 Texture Remarks 0-3 10 YR 4/1 100 clay pockets of sand
3-10 10 YR 4/1 60
2.5 Y 5/4 40
10-18 10 YR 4/1 80
2.5 Y 5/4 20
1Type: C=Concentration, D=Depletion, RM=Reduced Matrix, CS=Covered or Coated Sand Grains 2Location: PL=Pore Lining, RC=Root Channel, M=Matrix.
Hydric Soil Indicators: (Applicable to all LRRs, unless otherwise noted.) Indicators for Problematic Hydric Soils 3:
Histosol (A1) Sandy Redox (S5) 1 cm Muck (A9) (LRR C)
Histic Epipedon (A2) Stripped Matrix (S6) 2 cm Muck (A10) (LRR B) Black Histic (A3) Loamy Mucky Mineral (F1) Reduced Vertic (F18) Hydrogen Sulfide (A4) Loamy Gleyed Matrix (F2) Red Parent Material (TF2) Stratified Layers (A5) (LRR C) Depleted Matrix (F3) Other (Explain in Remarks) 1 cm Muck (A9) (LRR D) Redox Dark Surface (F6)
Depleted Below Dark Surface (A11) Depleted Dark Surface (F7) Thick Dark Surface (A12) Redox Depressions (F8)
Sandy Mucky Mineral (S1) Vernal Pools (F9) 3 Indicators of hydrophytic vegetation and wetland hydrology must be present, unless disturbed or
problematic.
Sandy Gleyed Matrix (S4)
Restrictive Layer (If present):
Type: None
Depth (inches): NA Hydric Soil Present? Yes No X
Remarks:
Lighter color soils in the matrix below three inches are likely from soil mixing and did not appear to be redox features.
HYDROLOGY
Wetland Hydrology Indicators:
Primary Indicators (minimum of one required: check all that apply) Secondary Indicators (2 or more required) Surface Water (A1) Salt Crust (B11) Water Marks (B1) (Riverine) High Water Table (A2) Biotic Crust (B12) Sediment Deposits (B2) (Riverine) Saturation (A3) Aquatic Invertebrates (B13) Drift Deposits (B3) (Riverine) Water Marks (B1) (Nonriverine) Hydrogen Sulfide Odor (C1) Drainage Patterns (B10) Sediment Deposits (B2) (Nonriverine) Oxidized Rhizospheres along Living Roots (C3) Dry-Season Water Table (C2) Drift Deposits (B3) (Nonriverine) Presence of Reduced Iron (C4) Crayfish Burrows (C8) Surface Soil Cracks (B6) Recent Iron Reduction in Plowed Soils (C6) Saturation Visible on Aerial Imagery (C9) Inundation Visible on Aerial Imagery (B7) Thin Muck Surface (C7) Shallow Aquitard (D3) Water-stained Leaves (B9) Other (Explain in Remarks) FAC-Neutral Test (D5) Field Observations:
Surface Water Present? Yes No X Depth (inches): NA
Water Table Present? Yes No X Depth (inches): NA
Saturation Present? Yes No X Depth (inches): NA Wetland Hydrology Present? Yes No X (includes capillary fringe)
Describe Recorded Data (stream gauge, monitoring well, aerial photos, previous inspections), if available:
Remarks:
Upland landscape position.
704
US Army Corps of Engineers Arid West – Version 2.0
WETLAND DETERMINATION DATA FORM – Arid West Region
Project Site: Branaugh Property Wetland Delineation City/County: Dublin/ Alameda Sampling Date: April 9, 2020 Applicant/Owner: Randy Branaugh State: California Sampling Point: SP14 Investigator(s): J. Pastick, B. Comito Section/Township/Range: T3S R1E Landform (hillslope, terrace, etc.): Hillslope Local Relief (concave, convex, none): None Slope (%): 18 Subregion (LRR): LRR-C Lat: 37.709194 Long: -121.835273 Datum: NAD 83 Soil Map Unit Name: Linne clay loam, 15 to 30 percent slopes, MLRA 15 NWI classification NA Are climatic / hydrologic conditions on the site typical for this time of year? Yes No X (If no, explain in Remarks.) Are
Vegetation
Soil or Hydrology significantly disturbed? Are “Normal Circumstances” present? Yes X No Are
Vegetation
Soil or Hydrology naturally problematic? (If needed, explain any answers in Remarks.) SUMMARY OF FINDINGS – Attach site map showing sampling point locations, transects, important features, etc.
Hydrophytic Vegetation Present? Yes No X
Is the Sampled Area
within a Wetland?
Hydric Soil Present? Yes No X Yes No X
Wetland Hydrology Present? Yes No X
Remarks:
Sample point take to investigate a slight depression at the northernmost point of ephemeral stream (ES1). Lower than average annual precipitation for this time of year..
VEGETATION
Tree Stratum (Plot size: ) Absolute
Cover %
Dominant
Species?
Indicator
Status
Dominance Test worksheet:
1. Number of Dominant Species
That Are OBL, FACW, or FAC: 0 (A)
2. 3.
Total Number of Dominant
Species Across All Strata: 1 (B)
4. Total Cover:
Percent of Dominant Species
That Are OBL, FACW, or FAC: 0% (A/B)
Sapling/Shrub Stratum (Plot size: )
1. Prevalence Index worksheet:
2. Total % Cover of: Multiply by:
3. OBL species x 1 =
4. FACW species x 2 =
5. FAC species x 3 =
Total Cover: FACU species x 4 =
Herb Stratum (Plot size: 5 ft x 5 ft) UPL Species x 5 =
1. Avena fatua 60 X UPL Column totals (A) (B)
2. Vicia sativa 18 FACU
3. Carduus pycnocephalus 8 UPL Prevalence Index = B/A =
4. Brassica nigra 5 UPL Hydrophytic Vegetation Indicators:
5. Festuca perennis 5 FAC Dominance Text is >50%
6. Trifolium sp. 2 OBL-
UPL
Prevalence Index is 3.01
7. Erodium sp. 3 UPL Morphological Adaptations1 (Provide supporting data in Remarks or on a separate sheet)8. Gilia tricolor T UPL Total Cover: 101 Problematic Hydrophytic Vegetation1 (Explain) Woody Vine Stratum (Plot size: ) 1 Indicators of hydric soil and wetland hydrology must be present.1.
2. Hydrophytic
Vegetation
Present?Total Cover: Yes No X
% Bare Ground in Herb Stratum 0 % Cover of Biotic Crust 0 Remarks:
Annual grassland vegetation.
705
US Army Corps of Engineers Arid West – Version 2.0
SOIL Sampling Point: SP14
Profile Description: (Describe to the depth needed to document the indicator or confirm the absence of indicators.) Depth Matrix Redox Features
(inches) Color (moist) % Color (moist) % Type 1 Loc2 Texture Remarks 0-2 10 YR 4/1 100 clay many fine roots
1Type: C=Concentration, D=Depletion, RM=Reduced Matrix, CS=Covered or Coated Sand Grains 2Location: PL=Pore Lining, RC=Root Channel, M=Matrix.
Hydric Soil Indicators: (Applicable to all LRRs, unless otherwise noted.) Indicators for Problematic Hydric Soils 3:
Histosol (A1) Sandy Redox (S5) 1 cm Muck (A9) (LRR C)
Histic Epipedon (A2) Stripped Matrix (S6) 2 cm Muck (A10) (LRR B) Black Histic (A3) Loamy Mucky Mineral (F1) Reduced Vertic (F18) Hydrogen Sulfide (A4) Loamy Gleyed Matrix (F2) Red Parent Material (TF2) Stratified Layers (A5) (LRR C) Depleted Matrix (F3) Other (Explain in Remarks) 1 cm Muck (A9) (LRR D) Redox Dark Surface (F6)
Depleted Below Dark Surface (A11) Depleted Dark Surface (F7) Thick Dark Surface (A12) Redox Depressions (F8)
Sandy Mucky Mineral (S1) Vernal Pools (F9) 3 Indicators of hydrophytic vegetation and wetland hydrology must be present, unless disturbed or
problematic.
Sandy Gleyed Matrix (S4)
Restrictive Layer (If present):
Type: None
Depth (inches): NA Hydric Soil Present? Yes No X
Remarks:
HYDROLOGY
Wetland Hydrology Indicators:
Primary Indicators (minimum of one required: check all that apply) Secondary Indicators (2 or more required) Surface Water (A1) Salt Crust (B11) Water Marks (B1) (Riverine) High Water Table (A2) Biotic Crust (B12) Sediment Deposits (B2) (Riverine) Saturation (A3) Aquatic Invertebrates (B13) Drift Deposits (B3) (Riverine) Water Marks (B1) (Nonriverine) Hydrogen Sulfide Odor (C1) Drainage Patterns (B10) Sediment Deposits (B2) (Nonriverine) Oxidized Rhizospheres along Living Roots (C3) Dry-Season Water Table (C2) Drift Deposits (B3) (Nonriverine) Presence of Reduced Iron (C4) Crayfish Burrows (C8) Surface Soil Cracks (B6) Recent Iron Reduction in Plowed Soils (C6) Saturation Visible on Aerial Imagery (C9) Inundation Visible on Aerial Imagery (B7) Thin Muck Surface (C7) Shallow Aquitard (D3) Water-stained Leaves (B9) Other (Explain in Remarks) FAC-Neutral Test (D5) Field Observations:
Surface Water Present? Yes No X Depth (inches): NA
Water Table Present? Yes No X Depth (inches): NA
Saturation Present? Yes No X Depth (inches): NA Wetland Hydrology Present? Yes No X (includes capillary fringe)
Describe Recorded Data (stream gauge, monitoring well, aerial photos, previous inspections), if available:
Remarks:
No indicators of hydrology observed.
706
US Army Corps of Engineers Arid West – Version 2.0
WETLAND DETERMINATION DATA FORM – Arid West Region
Project Site: Branaugh Property Wetland Delineation City/County: Dublin/ Alameda Sampling Date: April 9, 2020 Applicant/Owner: Randy Branaugh State: California Sampling Point: SP15 Investigator(s): J. pastick, B. Comito Section/Township/Range: T3S R1E Landform (hillslope, terrace, etc.): Flat Local Relief (concave, convex, none): Concave Slope (%): 0 Subregion (LRR): LRR-C Lat: 37.709145 Long: -121.834662 Datum: NAD 83 Soil Map Unit Name: Linne clay loam, 15 to 30 percent slopes, MLRA 15 NWI classification NA Are climatic / hydrologic conditions on the site typical for this time of year? Yes No X (If no, explain in Remarks.) Are
Vegetation
Soil or Hydrology significantly disturbed? Are “Normal Circumstances” present? Yes X No Are
Vegetation
Soil or Hydrology naturally problematic? (If needed, explain any answers in Remarks.) SUMMARY OF FINDINGS – Attach site map showing sampling point locations, transects, important features, etc.
Hydrophytic Vegetation Present? Yes No X
Is the Sampled Area
within a Wetland?
Hydric Soil Present? Yes No X Yes No X
Wetland Hydrology Present? Yes No X
Remarks:
Placed to investigate uplands in the northern portion of the study area. Lower than average annual precipitation for this time of year.
VEGETATION
Tree Stratum (Plot size: ) Absolute
Cover %
Dominant
Species?
Indicator
Status
Dominance Test worksheet:
1. Number of Dominant Species
That Are OBL, FACW, or FAC: 0 (A)
2. 3.
Total Number of Dominant
Species Across All Strata: 2 (B)
4. Total Cover:
Percent of Dominant Species
That Are OBL, FACW, or FAC: 0% (A/B)
Sapling/Shrub Stratum (Plot size: )
1. Prevalence Index worksheet:
2. Total % Cover of: Multiply by:
3. OBL species x 1 =
4. FACW species x 2 =
5. FAC species x 3 =
Total Cover: FACU species x 4 =
Herb Stratum (Plot size: 5 ft x 5 ft) UPL Species x 5 =
1. Bromus diandrus 25 X UPL Column totals (A) (B)
2. Hordeum murinum 20 X FACU
3. Carduus pycnocephalus 12 UPL Prevalence Index = B/A =
4. Vicia sativa 10 FACU Hydrophytic Vegetation Indicators:
5. Geranium molle 10 UPL Dominance Text is >50%
6. Helminthotheca echioides 8 FAC Prevalence Index is 3.01
7. Medicago polymorpha 8 FACU Morphological Adaptations1 (Provide supporting data in Remarks or on a separate sheet)8. Festuca perennis 8 FAC Total Cover: 98 Problematic Hydrophytic Vegetation1 (Explain) Woody Vine Stratum (Plot size: ) 1 Indicators of hydric soil and wetland hydrology must be present.1.
2. Hydrophytic
Vegetation
Present?Total Cover: Yes No X
% Bare Ground in Herb Stratum 2 % Cover of Biotic Crust 0 Remarks:
Annual grassland vegetation.
707
US Army Corps of Engineers Arid West – Version 2.0
SOIL Sampling Point: SP15
Profile Description: (Describe to the depth needed to document the indicator or confirm the absence of indicators.) Depth Matrix Redox Features
(inches) Color (moist) % Color (moist) % Type 1 Loc2 Texture Remarks 0-18 10 YR 3/1 100 clay Many fine roots in the top 5 in 1Type: C=Concentration, D=Depletion, RM=Reduced Matrix, CS=Covered or Coated Sand Grains 2Location: PL=Pore Lining, RC=Root Channel, M=Matrix.
Hydric Soil Indicators: (Applicable to all LRRs, unless otherwise noted.) Indicators for Problematic Hydric Soils 3:
Histosol (A1) Sandy Redox (S5) 1 cm Muck (A9) (LRR C)
Histic Epipedon (A2) Stripped Matrix (S6) 2 cm Muck (A10) (LRR B) Black Histic (A3) Loamy Mucky Mineral (F1) Reduced Vertic (F18) Hydrogen Sulfide (A4) Loamy Gleyed Matrix (F2) Red Parent Material (TF2) Stratified Layers (A5) (LRR C) Depleted Matrix (F3) Other (Explain in Remarks) 1 cm Muck (A9) (LRR D) Redox Dark Surface (F6)
Depleted Below Dark Surface (A11) Depleted Dark Surface (F7) Thick Dark Surface (A12) Redox Depressions (F8)
Sandy Mucky Mineral (S1) Vernal Pools (F9) 3 Indicators of hydrophytic vegetation and wetland hydrology must be present, unless disturbed or
problematic.
Sandy Gleyed Matrix (S4)
Restrictive Layer (If present):
Type: None
Depth (inches): NA Hydric Soil Present? Yes No X
Remarks:
HYDROLOGY
Wetland Hydrology Indicators:
Primary Indicators (minimum of one required: check all that apply) Secondary Indicators (2 or more required) Surface Water (A1) Salt Crust (B11) Water Marks (B1) (Riverine) High Water Table (A2) Biotic Crust (B12) Sediment Deposits (B2) (Riverine) Saturation (A3) Aquatic Invertebrates (B13) Drift Deposits (B3) (Riverine) Water Marks (B1) (Nonriverine) Hydrogen Sulfide Odor (C1) Drainage Patterns (B10) Sediment Deposits (B2) (Nonriverine) Oxidized Rhizospheres along Living Roots (C3) Dry-Season Water Table (C2) Drift Deposits (B3) (Nonriverine) Presence of Reduced Iron (C4) Crayfish Burrows (C8) Surface Soil Cracks (B6) Recent Iron Reduction in Plowed Soils (C6) Saturation Visible on Aerial Imagery (C9) Inundation Visible on Aerial Imagery (B7) Thin Muck Surface (C7) Shallow Aquitard (D3) Water-stained Leaves (B9) Other (Explain in Remarks) FAC-Neutral Test (D5) Field Observations:
Surface Water Present? Yes No X Depth (inches): NA
Water Table Present? Yes No X Depth (inches): NA
Saturation Present? Yes No X Depth (inches): NA Wetland Hydrology Present? Yes No X (includes capillary fringe)
Describe Recorded Data (stream gauge, monitoring well, aerial photos, previous inspections), if available:
Remarks:
Upland landscape position.
708
Arid West Ephemeral and Intermittent Streams OHWM Datasheet Project: Date: Time:
Project Number: Town: State:
Stream: Photo begin file#: Photo end file#:
Investigator(s):
Location Details:
Projection: Datum:
Coordinates:
Checklist of resources (if available):
Stream gage data
Gage number:
Period of record:
History of recent effective discharges
Results of flood frequency analysis
Most recent shift-adjusted rating
Gage heights for 2-, 5-, 10-, and 25-year events and the most recent event exceeding a 5-year event
Procedure for identifying and characterizing the floodplain units to assist in identifying the OHWM:
1. Walk the channel and floodplain within the study area to get an impression of the geomorphology and vegetation present at the site.
2. Select a representative cross section across the channel. Draw the cross section and label the floodplain units.
3. Determine a point on the cross section that is characteristic of one of the hydrogeomorphic floodplain units. a) Record the floodplain unit and GPS position.
b) Describe the sediment texture (using the Wentworth class size) and the vegetation characteristics of the floodplain unit.
c) Identify any indicators present at the location.
4. Repeat for other points in different hydrogeomorphic floodplain units across the cross section.
5. Identify the OHWM and record the indicators. Record the OHWM position via:
Mapping on aerial photograph GPS
Digitized on computer Other:
Y / N Do normal circumstances exist on the site?
Y / N Is the site significantly disturbed?
Potential anthropogenic influences on the channel system:
Brief site description:
Aerial photography
Dates:
Topographic maps
Geologic maps
Vegetation maps
Soils maps
Rainfall/precipitation maps
Existing delineation(s) for site
Global positioning system (GPS)
Other studies
709
Wentworth Size Classes
710
Project ID: Cross section ID: Date: Time:
Cross section drawing:
OHWM
GPS point: __
Indicators:
Change in average sediment texture
Change in vegetation species
Change in vegetation cover
Comments:
Floodplain unit: Low-Flow Channel Active Floodplain Low Terrace GPS point: ___________________________
Characteristics of the floodplain unit:
Average sediment texture: __ ________
Community successional stage:
NA Mid (herbaceous, shrubs, saplings)
Early (herbaceous & seedlings) Late (herbaceous, shrubs, mature trees) Indicators:
Mudcracks Soil development
Ripples Surface relief
Drift and/or debris
Presence of bed and bank
Benches
Other: ___________________
Other:____________________
Other: ___________________
Comments:
Break in bank slope
Other:
Other:____________________
________________________
________
Total veg cover: _____ Tree: __ _% Shrub: _____% Herb: _____% 711
Arid West Ephemeral and Intermittent Streams OHWM Datasheet Project: Date: Time:
Project Number: Town: State:
Stream: Photo begin file#: Photo end file#:
Investigator(s):
Location Details:
Projection: Datum:
Coordinates:
Checklist of resources (if available):
Stream gage data
Gage number:
Period of record:
History of recent effective discharges
Results of flood frequency analysis
Most recent shift-adjusted rating
Gage heights for 2-, 5-, 10-, and 25-year events and the most recent event exceeding a 5-year event
Procedure for identifying and characterizing the floodplain units to assist in identifying the OHWM:
1. Walk the channel and floodplain within the study area to get an impression of the geomorphology and vegetation present at the site.
2. Select a representative cross section across the channel. Draw the cross section and label the floodplain units.
3. Determine a point on the cross section that is characteristic of one of the hydrogeomorphic floodplain units. a) Record the floodplain unit and GPS position.
b) Describe the sediment texture (using the Wentworth class size) and the vegetation characteristics of the floodplain unit.
c) Identify any indicators present at the location.
4. Repeat for other points in different hydrogeomorphic floodplain units across the cross section.
5. Identify the OHWM and record the indicators. Record the OHWM position via:
Mapping on aerial photograph GPS
Digitized on computer Other:
Y / N Do normal circumstances exist on the site?
Y / N Is the site significantly disturbed?
Potential anthropogenic influences on the channel system:
Brief site description:
Aerial photography
Dates:
Topographic maps
Geologic maps
Vegetation maps
Soils maps
Rainfall/precipitation maps
Existing delineation(s) for site
Global positioning system (GPS)
Other studies
712
Wentworth Size Classes
713
Project ID: Cross section ID: Date: Time:
Cross section drawing:
OHWM
GPS point: __
Indicators:
Change in average sediment texture
Change in vegetation species
Change in vegetation cover
Comments:
Floodplain unit: Low-Flow Channel Active Floodplain Low Terrace GPS point: ___________________________
Characteristics of the floodplain unit:
Average sediment texture: __ ________
Community successional stage:
NA Mid (herbaceous, shrubs, saplings)
Early (herbaceous & seedlings) Late (herbaceous, shrubs, mature trees) Indicators:
Mudcracks Soil development
Ripples Surface relief
Drift and/or debris
Presence of bed and bank
Benches
Other: ___________________
Other:____________________
Other: ___________________
Comments:
Break in bank slope
Other:
Other:_________________
________________________
________
Total veg cover: _____ Tree: __ _% Shrub: _____% Herb: _____% 714
Lands of Branaugh
Preliminary Delineation of Wetlands/Other Waters D-1 H. T. Harvey & Associates January 11, 2021
Appendix D. Photos of the Study Area
Photo 1. Sample point SP-1. Point taken to investigate an area of recent inundation in low spot in a corral. Location was determined not to be a three parameter wetland, and was likely receiving runoff from a nearby roadside ditch. Photo direction = east.
Photo 2. Upland point (SP-2) Point taken on slight higher ground in corral adjacent to SP-1. Photo direction = east.
715
Lands of Branaugh
Preliminary Delineation of Wetlands/Other Waters D-2 H. T. Harvey & Associates January 11, 2021
Photo 3. Sample point SP-3. Location determined to be a seasonal wetland, connecting to a previously mapped seasonal wetland, SW04-2018 (USACE 2019). Photo direction = south.
Photo 4. Paired upland point (SP-4) to wetland sample point SP-3. Photo direction = southeast.
716
Lands of Branaugh
Preliminary Delineation of Wetlands/Other Waters D-3 H. T. Harvey & Associates January 11, 2021
Photo 5. Sample point SP-5, located at the north end of a previously mapped culvert. This area was determined not to be a wetland. Photo direction = southeast.
Photo 6. Wetland sample point SP-6. This location was determined to not be a three parameter wetland. Photo direction = east.
717
Lands of Branaugh
Preliminary Delineation of Wetlands/Other Waters D-4 H. T. Harvey & Associates January 11, 2021
Photo 7. Sample point SP-7, taken to investigate uplands. Photo direction = west.
Photo 8. Sample point SP-8, taken to investigate uplands. Location determined not to be a three parameter wetland. Photo direction = southwest.
718
Lands of Branaugh
Preliminary Delineation of Wetlands/Other Waters D-5 H. T. Harvey & Associates January 11, 2021
Photo 9. Sample point, SP-9, taken to investigate uplands. Photo direction = southwest.
Photo 10. Wetland sample point SP-10. Location determined to be a three parameter seasonal wetland. Photo direction = west.
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Lands of Branaugh
Preliminary Delineation of Wetlands/Other Waters D-6 H. T. Harvey & Associates January 11, 2021
Photo 11. Paired upland point (SP-11) to wetland sample point SP-10. Photo direction = southwest.
Photo 12. Wetland sample point SP-12. Location determined to be a seasonal wetland. Photo direction = south.
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Preliminary Delineation of Wetlands/Other Waters D-7 H. T. Harvey & Associates January 11, 2021
Photo 13. Paired upland point (SP-13) to SP12. Photo direction = southeast.
Photo 14. Paired upland point (SP-14) to sample point SP-15. Photo direction = west. 721
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Preliminary Delineation of Wetlands/Other Waters D-8 H. T. Harvey & Associates January 11, 2021
Photo 15. Photo of sample point location SP-15. This location was located adjacent to the ephemeral stream, and was determined not to be a wetland. Photo direction = west .
Photo 16. Location of OHWM-1, taken in the northern portion of the study area. Photo direction = north.
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Lands of Branaugh
Preliminary Delineation of Wetlands/Other Waters D-9 H. T. Harvey & Associates January 11, 2021
Photo 17. Location of OHWM-2 transect. Photo direction = south.
Photo 18. Representative photo of California annual grassland habitat found throughout the majority of the study area. Photo direction = east.
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Preliminary Delineation of Wetlands/Other Waters D-10 H. T. Harvey & Associates January 11, 2021
Photo 19. Representative photo of the developed habitat, located primarily in the southern portion of the study area. Photo direction = north.
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E-1
Appendix E. Aquatic Resources Table
Waters Name Cowardin Code HGM Code Measurement Type Amount Units Waters Type Latitude Longitude Local Waterway SW1 PEM Depress Area 0.004 ACRE NRPWW 37.708646 -121.835232 Cottonwood Creek SW2 PEM Depress Area 0.006 ACRE NRPWW 37.708315 -121.835329 Cottonwood Creek SW3 PEM Depress Area 0.050 ACRE NRPWW 37.707865 -121.835384 Cottonwood Creek SW4 PEM Depress Area 0.006 ACRE NRPWW 37.707235 -121.835377 Cottonwood Creek SW5 PEM Depress Area 0.014 ACRE NRPWW 37.706719 -121.835243 Cottonwood Creek SW6 PEM Depress Area 0.081 ACRE NRPWW 37.703756 -121.834689 Cottonwood Creek
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F-1
Appendix F. S igned statement from the property owner(s) allowing USACE personnel to enter the property
I, Randall Branaugh, will allow Corps personnel to enter my property (APN 905-1-4-4) in the City of Dublin, Alameda County, California to collect samples during normal business hours. The property is not land-locked, therefore permission from the adjacent property owner(s) in order to provide access is not necessary.
Thank you,
Randall Branaugh
Bex Development
19077 Madison Avenue
Castro Valley, CA 94546
510.881.1828
[email protected]
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City of Dublin Branaugh Property Stage 2 Planned Development Initial Study | Appendices
Appendix D
Branaugh and Righetti Property Development –
Listed Species Impacts, Mitigation, and Take Approval Summary
727
983 University Avenue, Building D Los Gatos, CA 95032 408.458.3200 www.harveyecology.com
Memorandum
December 8, 2021 Project s #2480-03 and 4423-01
To: Randy Branaugh / Milton and Matthew Righetti
From: Steve Rottenborn and Jeff Wilkinson, H. T. Harvey & Associates
Subject: Branaugh and Righetti Property Development – Listed Species Impacts, Mitigation, and Take Approval Summary
The purpose of this memo is to provide the Branaughs and Righettis (hereafter “Landowners”) with the acreages of impacts to habitat of the California red-legged frog (Rana draytonii) and California tiger salamander (Ambystoma californiense) (listed species) that will result from development of various portions of their properties by Trumark development, the Dublin Boulevard Extension (DBE) project, and their own projects; describe how mitigation will be provided for the areas being affected by each of these projects; and describe how incidental take approval from the U.S. Fish and Wildlife Service (USFWS) and California Department of Fish and Wildlife (CDFW) (collectively, the “agencies) will be obtained for the lands impacted by these various projects.
In addition to development by the Landowners , the Branaugh and Righetti properties will be impacted by two other projects. Trumark is developing land north of the Branaugh and Righetti properties and will be grading onto both properties, as indicated in Figure 1. Trumark will obtain incidental take approval from the agencies for their impacts on listed species, and will provide mitigation for their impacts on the Branaugh and Righetti properties as though their activities result in permanent impacts to listed species habitat. The City of Dublin is planning the DBE project, which will bisect both properties. The City has received a Biological Opinion (BO) from the USFWS for the DBE project (USFWS 2020) and will be obtaining an Incidental Take Permit from the CDFW for impacts to California tiger salamanders. The DBE project will result in three types of impacts on listed species:
• Direct, permanent impacts consist of the permanent conversion of the current natural habitats (e.g., grassland and wetlands) to development (e.g., road and associated shoulder s and other infrastructure , including the permanent City right-of-way).
• Direct, temporary impacts consist of construction- related impacts, such as grading a nd staging within the City’s construction right-of-way, for the DBE project that will be restored to natural habitats after completion of the project.
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2 H. T. Harvey & Associates
• Indirect, permanent impacts consist of impacts due to the isolation of natural habitats after completion of the DBE project so that listed species will not be able to freely dispe rse between these habitats and other occupied habitats in the region.
We expect mitigation from all the projects considered here (Trumark, DBE, and the individual Landowners ’ development projects) to be required in accordance with ratios established by th e East Alameda Coun ty Conservation Strategy (EACCS; ICF International 2010) and the Programmatic BO for the EACCS (USFWS 2012). Those ratios vary between the two listed species considered here; based on the location of the impact vs. mitigation areas; and based on whether impact s and/or mitigation occur s in critical habitat ( impacts on the northern portions of both the Branaugh and Righetti properties will affect C alifornia red-legged frog critical habitat). Because the location (s) of the mitigation area (s) for these various projects are not yet known with certainty, the mitigation ratios have not yet been established . However, the mitigation options that the City of Dublin is investigating for the DBE (and that are likely to be available to the Landowners) are located in areas where the average mitigation ratio will be approximately 3:1 (mitigation:impact) for permanent impacts and 1:1 for direct, temporary impacts.
In order to better describe these impacts and required mitigation, we have illustrated six zones of impacts on the properties that vary with respect to which project will impact them, whether those impacts are temporary vs. permanent, and whether impacts are direct vs. indirect (Figure 1). Ultimately, we understand that the entirety of both parcels will be permanently impacted with respect to listed species
1. We have also provided a table for each
property listing the amount (in acres) of impacts and required mitigation, and the parties deemed responsible for providing this mitigation for each zone of impact in Figure 1 (Tables 1 and 2) . These zones of impacts and required mitigation are described below.
Table 1. Branaugh Property Impacts and Mitigation
Zone
Impacts (ac)
Required Mitigation for
Permanent Impacts (ac)1
Mitigation to be Provided
by Others (ac)
Remaining or Reimbursement
Mitigation to be Provided by
Branaugh (ac)
1 1.32 3.96 3.962 0.00
2 26.48 79.44 0.00 79.44
3 1.85 5.55 1.853 3.70
4 0.44 1.32 1.324 0.00
5 0.06 0.18 0.185 0.125
6 1.22 3.66 3.666 3.666
Total 31.37 94.11 17.08 86.92
1 Assumes a mitigation ratio of 3:1, though the ultimately required ratios may vary depending on the mitigation site location 2 Mitigation provided by Trumark (3:1)
3 Partial mitigation (1:1) provided by City of Dublin for direct, temporary impacts during DBE construction 4 Mitigation provided entirely by City of Dublin for direct, permanent impacts from DBE (3:1) 5 Partial mitigation (1:1) provided by City of Dublin for direct, temporary impacts during DBE construction; additional mitigation (2:1) provided by City of Dublin for indirect, permanent impacts from DBE to be reimbursed by Branaugh 6 Mitigation provided by City of Dublin for indirect, permanent impacts from DBE (3:1) to be reimbursed by Branaugh
1 Some of the wetland areas at the southern edge of the Righetti property are unlikely to be impacted directly, but because development will separate these wetlands from source populations of listed species, the USFWS and CDFW are expected to consider these areas “lost” to listed species and therefore permanently impacted. 729
3 H. T. Harvey & Associates
Table 2. Righetti Property Impacts and Mitigation
Zone
Impacts (ac)
Required Mitigation for
Permanent Impacts (ac)1
Mitigation to be Provided
by Others (ac)
Remaining or
Reimbursement Mitigation to
be Provided by Righetti (ac)
1 1.26 3.78 3.782 0.00
2 26.38 79.14 0.00 79.14
3 2.30 6.90 2.303 4.60
4 2.04 6.12 6.124 0.00
5 1.83 5.49 5.495 3.665
6 15.56 46.68 46.686 46.686
Total 49.37 148.11 64.37 134.08
1 Assumes a mitigation ratio of 3:1, though the ultimately required ratios may vary depending on the mitigation site location 2 Mitigation provided by Trumark (3:1)
3 Partial mitigation (1:1) provided by City of Dublin for direct, temporary impacts during DBE construction 4 Mitigation provided entirely by City of Dublin for direct, permanent impacts from DBE (3:1) 5 Partial mitigation (1:1) provided by City of Dublin for direct, temporary impacts during DBE construction; additional mitigation (2:1) provided by City of Dublin for indirect, permanent impacts from DBE to be reimbursed by Righetti 6 Mitigation provided by City of Dublin for indirect, permanent impacts from DBE (3:1) to be reimbursed by Righetti
Zone 1 consists of upland habitat in the northern portions of the properties that will be graded by Trumark.
Trumark is currently obtaining take approval from the agencies for impacts on the listed species and will be providing the mitigation acreages for these impacts. We are assuming that Trumark will be required to provide mitigation for direct, permanent impacts on listed species at a ratio of 3:1 for the acreage that they will grade. If there is lag time between Trumark’s impacts and any impacts by development of the Landowners’ prope rties, habitat conditions could improve in Trumark’s impact areas (e.g., restoration of grassland and return of mammals that create burrows for frogs and salamanders), and it is possible that the Landowners will be required to obtain USFWS and CDFW take approval for their eventual impacts to these areas. However, it is our opinion that the agencies should not require additional compensatory mitigation when the Landowners impact those areas.
Zone 2 consists of upland habitat o n the properties between Zone 1 (the areas to be graded by Trumark in the north) and the areas of direct, temporary impacts from the DBE. Any impacts on listed species from proposed development in areas of Zone 2 will require the Landowners to obtain take approval from the agencies , and provide the required mitigation for these impacts (assumed to be at a ratio of approximately 3:1 for permanent impacts), per the EACCS.
Zone 3 consists of habitat north of the DBE that will undergo direct, temporary impacts from the DBE project.
Therefore, the City will provide mitigation acreage at a 1:1 ratio (assuming those impacts occur prior to impacts by the Landowners’s development activities ). When these Zone 3 lands are subsequently impacted by the Landowners’ development projects, we expect that the Landowners will need to provide additional mitigation at a ratio of approximately 2:1 (to a chieve the total 3:1 ratio required for permanent impacts). If there is lag time between DBE’s temporary impacts and subsequent development of the Landowners’ properties, the City would restore natural habitat in Zone 3, and habitat conditions could improve (e.g., restoration of grassland and return of mammals that create burrows for frogs and salamanders). In that case, it is possible that the Landowners will be required to obtain USFWS and CDFW take approval for their eventual impacts to these areas. However, it is our opinion that the agencies should not require compensatory mitigation at a total ratio (including mitigation provided by both the City and L andowners combined) of more than approximately 3:1. If the Landowners’ 730
4 H. T. Harvey & Associates
development activities disturb Z one 3 before this area is disturbed by the DBE, then the Landowners may be responsible for all mitigation (at the full 3:1 ratio).
Zone 4 consists of natural habitat (excluding developed areas, which are not listed species habitat ) o n the properties that will undergo direct, permanent impacts on the listed species from the DBE project ( i.e., will become the road, shoulders, and associated infrastructure). The City has obtained take approval of listed species from the USFWS and is in the process of obtaining take approval of listed species from the CDFW and will provide mitigation acreages for these direct, permanent impacts at a ratio of approximately 3:1 per the EACCS.
Zone 5 consists of natural habitat (excluding developed areas) on the properties south of the DBE that will undergo direct, temporary impacts from the DBE project. In addition, t he DBE will isolate these areas from breeding habitat for listed species north of the DBE , thus resulting in indirect, permanent impacts on the listed species through the effective loss of habitat. The City will provide mitigation at a ratio of approximately 3:1 , as though Zone 5 is permanently impacted by the DBE project. Of this mitigation, we expect that the City will take responsibility for mitigation at a 1:1 ratio for the DBE project’s direct, temporary impacts (assuming those impacts occur prior to impacts by the Landowners’s development activities) and will require the Landowners to reimburse the City for the additional 2:1 mitigation when they develop Zone 5 . If the Landowners’ development activities disturb Zone 5 before this area is disturbed by the DBE , then we expect the Landowners to be responsible for all mitigation (at the full 3:1 ratio).
Zone 6 consists of natural habitat (excluding developed areas) o n the properties south of the DBE project that will not undergo any direct impacts from DBE construction (i.e., will not be graded or used for staging during the DBE project, and will thus remain natural habitat). However, because the DBE will isolate these areas from breeding habitat north of the DBE, the City and agencies are considering Zone 6 to undergo indirect, permanent impacts from the DBE project. Therefore, the City will provide mitigation at a ratio of approximately 3:1 for these impacts and will require the Landowners to reimburse the City for all of that mitigation when they develop Zone 6.
Each of the Landowners will be required to obtain incidental take approval for listed species prior to development of their properties. At a minimum, the Landowners would need incidental take approval for development of Zone 2. However, the agencies may require take approval for any areas that have any habitat value (i.e., natural or restored grassland habitat, or any areas with small mammal burrows) at the time when a Landowner’s development impacts that habitat . Depending on the lag between Trumark and DBE construction and construction by the Landowners, it is possible that the Landowners may need to obtain incidental take approval for all zones except Zone 4. However, we will work with the Landowners to try to obtain USFWS and CDFW concurrence that mitigation is not needed twice for the same area, so that the total mitigation provided by all parties for any particular area does not exceed 3:1.
We recommend that the Landowners consult with the City, USFWS, and CDFW in a joint meeting to obtain concurrence regarding how the Landowners will be required to seek incidental take approval on the listed species for a project (i.e., in which zones) and what the required mitigation for the Landowners’ approval will ultimately be, with the intent of avoiding any over-mitigation (i.e., greater than a 3:1 ratio in total, in any given area. 731
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References
ICF International. 2010. EACCS East Alameda County Conservation Strategy. October 2010. [USFWS]. U.S. Fish and Wildlife Service. 2012. Programmatic Biological Opinion for U.S. Army Corps of Engineers (Corps) Permitted Projects Utilizing the East Alameda County Conservation Strategy that May Affect Federally Listed Species in East Alameda County, California . 08ESMFOO-2012-F-0092-1, May 31, 2021.
[USFWS]. U.S. Fish and Wildlife Service. 2020. Formal Consultation on Dublin Boulevard -North Canyons Parkway Extension Project in Alameda County, California. 08ESMF00-2020-F-1476, December 18, 2020.
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BranaughRighetti
Figure 1. California Red-legged Frog and California Tiger Salamander Habitat Impacts on the Branaugh and Righetti Properties December 2021
N:\Projects4400\4423-01\Reports\CRLF and CTS Impacts Branaugh and Righetti.mxd (2480-01/4423-01)
Parcels
Zone 1 - Trumark Permanent Impacts
Zone 2 - Landowner Permanent Impacts
Zone 3 - Dublin Boulevard Extension Direct, Temporary Impacts/Landowner Permanent Impacts Zone 4 - Dublin Boulevard Extension Direct, Permanent Impacts Zone 5 - Dublin Boulevard Extension Direct, Temporary and Indirect, Permanent Impacts/Landowner Permanent Impacts Zone 6 - Dublin Boulevard Extension Indirect, Permanent Impacts/Landowner Permanent Impacts 300 0 300150
Feet
I-580
Collier Canyon Road
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City of Dublin Branaugh Property Stage 2 Planned Development Initial Study | Appendices
Appendix E
Cultural Resources Study
734
CARLSBAD
CLOVIS
IRVINE
LOS ANGELES
PALM SPRINGS
POINT RICHMOND
RIVERSIDE
ROSEVILLE
SAN LUIS OBISPO
157 Park Place, Pt. Richmond, California 94801 510.236.6810 www.lsa.net
February 7, 2022
Amy Million
Principal Planner
City of Dublin
100 Civic Plaza
Dublin, CA 94568
Subject: Cultural Resource Study for the Branaugh Property Stage 2 Planned Development Project, Dublin, Alameda County, California (LSA Project No. DUB2101.02, Phase 2) Dear Ms. Million:
LSA prepared this study to meet the requirements of the California Environmental Quality Act (CEQA) and implementing regulations (California Code of Regulations, Title 14, Section 15000 et seq.). The purpose of the study was to: (1) identify cultural resources that may meet the CEQA definition of a historical resource (California Public Resources Code [PRC] §21084.1) or unique archaeological resource (PRC §21083.2), and that may be impacted by the proposed project; (2) identify human remains, including those interred outside of formal cemeteries; and (3) recommend mitigation, additional study, or consultation outreach that may be required to address potential impacts to such resources and/or remains.
LSA Archaeologist/Cultural Resources Analyst Kendra Kolar, M.A., conducted the background research and prepared this technical report. LSA Archaeologist Lennon Fanning conducted the field survey. The methods and results of these tasks are described in this report, and recommendations are provided based on the findings.
PROJECT DESCRIPTION AND LOCATION
The proposed project site is located in Section 2 of Township 3 South, Range 1 East, Mount Diablo Base Line Meridian, as depicted on the United States Geological Survey (USGS) Livermore, Calif. 7.5- minute topographic quadrangle (Attachment A: Figure 1). The project site sits east of Croak Road and north of Interstate 580 on the eastern edge of Dublin, adjacent to unincorporated Alameda County. The approximately 40.2-acre parcel (Assessor’s Parcel Number [APN] 905-01-004-04) consists primarily of undeveloped grazing ranchland and open space, but it also includes two areas of rural residential development (Attachment A: Figure 2). Existing structures include a circa 1958 barn and shed, two mid-20th century single-family homes, and several modern sheds all comprising a farm complex in the southern portion of the project site. A third house, built in the 1980s, sits in the northwest corner of the project site.
The proposed project would involve demolishing all existing structures and subdividing the project site into four parcels to accommodate new residential and industrial development. A total of 78 residential units would be constructed on 9.87 acres (with the potential to provide up to 97 units).
Approximately 527,773 square feet of industrial use is planned for the remaining 30.29 acres. The 735
2 2/7/22 (P:\DUB2101.02 Branaugh\PRODUCTS\Cultural\Archaeo report\LSA_Cultural Study_Branaugh.docx) proposed project would include three bioretention basins and storm drains throughout the project site, which would connect to a downstream hydromodification facility. Hydromodification vaults would be included on the site to provide flow duration controls for the project. Proposed maximum depths of construction-related excavation would be approximately 30 feet for building pads and approximately 15 feet for utility trenching, bioretention basins, storm drains, and hydromodification vaults.
The project site straddles a north-south oriented drainage and extends onto the valley floor south of the drainage. Elevations range from 580 feet above sea level at the highest points in the drainage, down to approximately 370 feet above sea level on the valley floor. Published geologic data identify Pliocene to early Pleistocene Livermore Gravel (Qtlg) deposits along the hillslopes flanking the drainage in the northern half of the project site, including the location of the existing ca. 1980 house (Dibblee 2006). The bottom of the drainage is mapped as Holocene alluvium (Qa), which extends onto the valley floor in the southern half of the project site, where the farm complex is located.
Soils in the drainage in the northern half of the project site are mapped as Linne clay loam, which typically consists of clay loam extending to bedrock at 36 to 40 inches below surface (NRCS 2022).
Soils on the valley floor in the southern half of the project site include Rincon clay loam, typically consisting of clay loam, sandy clay, and stratified sandy to clay loam horizons extending at least 60 inches below surface, and Diablo clay that typically features clay and silty clay extending at least 60 inches below surface.
Currently and historically, the nearest source of water is Cottonwood Creek, which flows out of Doolan Canyon to the east before feeding into Arroyo Las Positas roughly 0.2 miles southeast of the project site.
BACKGROUND RESEARCH
LSA conducted background research consisting of a records search at the Northwest Information Center (NWIC), a review of historical maps and aerial photographs, a search of the Sacred Lands File (SLF) at the Native American Heritage Commission (NAHC), and a review of published geological information to gauge buried site sensitivity. The results of these tasks are summarized below and are used to assess the potential for undiscovered archaeological deposits within the project site.
NWIC Records Search
A cultural resources records search was conducted on November 6, 2021, by staff at the NWIC of the California Historical Resources Information System to identify previous archaeological site records and cultural resource studies within the project site and vicinity. The NWIC, an affiliate of the Office of Historic Preservation (OHP), is the official State repository of cultural resources records and reports for Alameda County. The search encompassed the project site and surrounding 0.5-mile radius.
The project site contains a historic-period farm complex (the Collier Ranch) consisting of four buildings over 50 years old: a circa 1958 shed and two-story, three-bay barn, and two mid-20th century single-family homes. These buildings were evaluated for significance as a historical resource.
They were found to be not eligible, either individually or as a group, for inclusion on the California 736
3 2/7/22 (P:\DUB2101.02 Branaugh\PRODUCTS\Cultural\Archaeo report\LSA_Cultural Study_Branaugh.docx) Register of Historical Resources (CRHR) or the National Register of Historic Places (NRHP). The other structures on the project site, consisting of several modern sheds and a circa 1980 single-story single-family residence, have not yet reached sufficient age to warrant evaluation for significance.
Three previous cultural resource studies overlapped the current project site, and another seven were conducted within a half-mile radius. All of these are summarized in Table A. No archaeological resources are recorded within the project boundaries or within a half-mile of the project site.
Table A: Previous Cultural Resource Studies Within 0.5 Miles Title, Author, Year Study Type/Location Results
An Archaeological Reconnaissance of the Proposed
Pipeline Routes and Reservoir Locations, Livermore-
Amador Valley Water Management Agency, Alameda
County, California. Edward M. Love, Miley Paul
Holman, and David Chavez. 1976
(NWIC Report No. S-000898)
Archaeological field
survey (partially within
0.5 miles of project site)
P-01-000046 (CA-ALA-000026/H)
P-01-000063 (CA-ALA-000043)
P-01-000065 (CA-ALA-000045)
*all recorded more than 0.5 miles
from project site
Cultural Resource Evaluation of the Bezley Mining
Project on Croak Road and Highway 580 in the County
of Alameda. Robert Cartier. 1982
(NWIC Report No. S-004924)
Archaeological field
survey (within 0.5 miles
of project site)
None
Archaeological Reconnaissance of the SMP-18 Quarry
Area (APN 99 B-3200-4-4) Near Livermore, Alameda
County, California. Randy S. Wiberg. 1984
(NWIC Report No. S-007105)
Archaeological field
survey (overlaps project
site)
None
Archaeological Inspection of Proposed Righetti Quarry,
Alameda County, California. Miley Paul Holman. 1985
(NWIC Report No. S-007376)
Archaeological field
survey (overlaps project
site)
None
A Report of Findings for the Johnson Prezoning No. 2-
313, Annexation No. 150-84, Tentative Tract Map No.
5393, Alameda County, California. Miley Paul Holman.
1985
(NWIC Report No. S-008893)
Archaeological field
survey and excavation
(partially within 0.5 miles
of project site)
1 unrecorded buried midden site
(location not obtained)
A Cultural Resources Study for the North Livermore
Master Plan/Specific Plan, Environmental Impact
Report, Alameda County, California. Randy S. Wiberg,
Randall Dean, and Miley P. Holman. 1998
(NWIC Report No. S-020335)
Archaeological and
architectural/historical
field survey, evaluation
(partially within 0.5 miles
of project site)
P-01-000067 (CA-ALA-000047)
P-01-002197
P-01-002200
P-01-002201
P-01-002202
*all recorded more than 0.5 miles
from project site
31 unrecorded historic resources
& 1 prehistoric isolate (locations
not obtained)
1881 Collier Canyon Road, Livermore (Collier Ranch),
Eastern Dublin Properties Resource Management Plan,
Supplemental Cultural Resources Review - Built
Environment, City of Dublin, Alameda County (APN
905-0001-004-04). Colin I. Busby. 2004
(NWIC Report No. S-030611)
Architectural/historical
field survey and
evaluation (overlaps
project site)
unrecorded Collier Ranch
complex
737
4 2/7/22 (P:\DUB2101.02 Branaugh\PRODUCTS\Cultural\Archaeo report\LSA_Cultural Study_Branaugh.docx) Table A: Previous Cultural Resource Studies Within 0.5 Miles Title, Author, Year Study Type/Location Results
Historic Property Survey Report: I-580 Eastbound HOV
Lane Project: Hacienda Drive to East of Greenville
Road, 04-Ala-580 KP 12.6/30.7 (PM R7.8/19.1), EA
04258-290810, Alameda County, California. M. Kate
Lewis. 2006
(NWIC Report No. S-031701 and a−b)
Archaeological and
architectural/historical
field survey (partially
within 0.5 miles of
project site)
P-01-000262
P-01-000263
P-01-002197
P-01-002204
P-01-010779
P-01-010780
P-01-010781
*all recorded more than 0.5 miles
from project site
Possibly 1 unrecorded midden
deposit
Collocation ("CO") Submission Packet, FCC Form 621,
Driving Range, BA-02129A. Lorna Billat. 2006
(NWIC Report No. S-032276)
Archaeological and
architectural/historical
field survey (within 0.5
miles of project site)
None
Historic Property Survey Report for the I-580
Westbound High Occupancy Vehicle Lane Project,
Greenville Road to San Ramon/Foothill Roads,
Alameda County, California: 4-Ala-580, P.M.
8.29/21.43, EA 29082K. Brian F. Byrd. 2008
(NWIC Report No. S-035826)
Archaeological and
architectural/historical
field survey (within 0.5
miles of project site)
None
Source: Compiled by LSA (2022).
Historical Map and Photograph Review
In order to assess the potential for historic-period archaeological deposits, LSA reviewed historical topographic maps and aerial photographs to identify whether buildings or structures were present in the past within the project site (Table B). To summarize, the earliest structures documented within the project site were built by 1949 in the area of the extant historic-period farm complex and in the southeast corner of the project site at the intersection of Collier Canyon Road and the driveway extending along the eastern boundary of the project site. It is unclear if these early buildings in the area of the farm complex were later demolished or incorporated into the extant farm complex. The structure in the southeast corner of the project site was removed between 1966 and 1968.
Table B: Historical Map and Aerial Photograph Review
Map/Photograph Results
1906 Pleasanton USGS topographic quadrangle
(1:62,500)
Project site is undeveloped. No structures present.
Cottonwood Creek shown to the east following
approximately its current alignment. An east-west oriented road abuts the south end of the project site.
1941 Pleasanton USGS topographic quadrangle
(1:62,500)
Same as previous map with the addition of a structure west of the project site at the end of an unimproved road. The east-west road is labeled as Highway 50.
738
5 2/7/22 (P:\DUB2101.02 Branaugh\PRODUCTS\Cultural\Archaeo report\LSA_Cultural Study_Branaugh.docx) Table B: Historical Map and Aerial Photograph Review
Map/Photograph Results
1953 Livermore USGS topographic quadrangle (1:24,000) The structure and road west of the project site are no longer depicted (although they do appear in aerial photos until 1979). A structure (possibly a residence) and an outbuilding are shown within the project site at the end of an
unimproved road in the area of the extant farm complex.
Another structure is shown in the southeast corner of the project site at the intersection of what is now Collier Canyon Road and the driveway leading into the project site.
1961 Livermore USGS topographic quadrangle (1:24,000) Two possible residences are located at the end of the unimproved road; the outbuilding in that location is no longer shown. The possible residences, along with a
rectangular outbuilding in the location of the extant barn, are depicted in the area of the extant farm complex within the project site. The structure in the southeast corner of the project site is no longer shown.
1968 Livermore USGS topographic quadrangle (1:24,000) There is no change from the previous map. 1973 Livermore USGS topographic quadrangle (1:24,000) A road following the current alignment of Collier Canyon Road is depicted, replacing the previous street access to the project site.
1980 Livermore USGS topographic quadrangle (1:24,000) There is no change from the previous map. 1949 aerial photo Structures are present in the area of the extant mid-century houses, and there appears to be fenced pasture or corrals and possibly a structure in the vicinity of the extant barn location. A structure is visible in the southeast corner of the project site, at the intersection of what is now Collier Canyon Road and the driveway leading into the project site, which was noted on the 1953 USGS map.
1958 aerial photo
The extant historic-period farm complex structures appear to be present.
1960, 1966, 1968 aerial photos These photos generally show modifications to the farm complex. The structure in the southeast corner of the
project site disappears between 1966 and 1968.
1979, 1982, 1987 aerial photos These photos document modern development within the project site, including construction of the house in the far northwest corner, which appears on the 1987 photo, but not the 1982 photo.
Source: Compiled by LSA (2022).
NAHC Sacred Lands File Search
LSA submitted a request to the NAHC to search the SLF for Native American cultural resources that may be impacted by the proposed project. The NAHC maintains the SLF database and is the official State repository of Native American sacred-site location records in California.
Cody Campagne, NAHC Cultural Resources Analyst, responded to the SLF search request on February 4, 2022, stating that the results were negative and that there were no known Native American cultural resources in the project site (Appendix B). He noted, however, that “the absence of specific site information in the SLF does not indicate the absence of cultural resources in any project area.” 739
6 2/7/22 (P:\DUB2101.02 Branaugh\PRODUCTS\Cultural\Archaeo report\LSA_Cultural Study_Branaugh.docx) Mr. Campagne provided a list of Native American individuals to contact for additional information regarding the potential for cultural resources in the project site.
LSA understands that the City of Dublin is responsible for conducting Native American consultation, per Assembly Bill 52, for this project.
Geoarchaeological Review
Fundamentally, there is an inverse relationship between landform age and the potential for buried pre-contact archaeological deposits. Pleistocene-age landforms (1.8 million years to ca. 11,500 cal B.P.) predate human occupation of the region; archaeological deposits on these landforms, if present, would be located at or near the surface. In contrast, landforms that formed during the Holocene (ca. 11,500 years ago to the present) may contain buried surfaces (paleosols) that would have been available in the past for human habitation (Meyer and Rosenthal 2007).
Geoarchaeological studies in the region identify landform age, type, and position in the landscape as important criteria for assessing the potential for buried archaeological deposits. In their regional geoarchaeological study and sensitivity model, which included nine San Francisco Bay Area counties, Meyer and Rosenthal (2007) identified Holocene-age landforms as having a general potential for containing buried pre-contact archaeological deposits. They further determined that pre-contact archaeological sites tend to be situated at the base of hills near sources of water, and on stream terraces, and buried beneath a few inches to several feet of alluvial soils.
As discussed earlier in this report, Holocene-age alluvial deposits are mapped along the bottom of the drainage in the northern half of the project site, as well as on the valley floor in the southern half of the project site. Soils information indicates that the alluvium on the valley floor could reach considerable depths. Although the project site straddles the interface between the valley floor and adjacent uplands, it historically does not appear to have been in close proximity to a stream. Thus, according to Meyer and Rosenthal’s criteria, portions of the project site do have general potential for buried pre-contact archaeological deposits based on the age of the landforms present and position in the landscape. However, these areas likely have low to moderate sensitivity given the distance to the closest historically documented stream.
FIELD SURVEY
Lennon Fanning, LSA Archaeologist, conducted a pedestrian survey of the project site on December 14, 2021. Photographs from the survey are provided in Attachment C. The survey was conducted in approximately 5.5 meter-wide transects, oriented magnetic east-west, and included periodic meandering to access exposed soil and avoid cattle.
At the time of the survey, the project site consisted primarily of open field covered in low green grass. A sizably steep hill occupied the northern part of the project site, which sloped to the south toward a paved area containing an operational business, houses, and parking lot. The grass was generally dense, although thinner and sparse in a few areas. Surface visibility varied, depending on the grass cover, from 15 to 40 percent, with some opportunities to examine soil exposed in vehicle tracks, cattle tracks, and rodent burrow back dirt.
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7 2/7/22 (P:\DUB2101.02 Branaugh\PRODUCTS\Cultural\Archaeo report\LSA_Cultural Study_Branaugh.docx) The soil consisted of black silt/clay with gravel that included well-rounded pebbles and cobbles as well as broken pieces of sand- or claystone. Modern trash was scattered throughout the open field.
Bird and rodent bone were observed in a few rodent burrow back dirt piles. No archaeological deposits were noted.
SUMMARY AND RECOMMENDATIONS
No archaeological resources were identified within the project site during the course of this study.
The project site does contain a historic-period farm complex (the Collier Ranch) consisting of four buildings over 50 years old: a circa 1958 shed and two-story, three-bay barn, and two mid-20th century single-family homes. These buildings were evaluated for significance as a historical resource.
They were found to be not eligible, either individually or as a group, for inclusion on the CRHR or the NRHP. Other structures on the project site, consisting of several modern sheds and a circa 1980 single-story single-family residence, have not yet reached sufficient age to warrant evaluation for significance. These existing buildings will be demolished as part of the proposed development.
Background research indicated that buildings were present as early as 1949 in the area of the extant historic-period farm complex, and also in the southeast corner of the project site. It is unclear if the former were later demolished or incorporated into the extant farm complex. The structure in the southeast corner of the project site was removed between 1966 and 1968. There is high potential for any of these past or existing historical structures to have associated features, such as wells, refuse deposits, and structural remnants, buried within the project site.
Holocene-age alluvial deposits are mapped along the bottom of the drainage in the northern half of the project site, as well as on the valley floor in the southern half of the project site. Soils information indicates that the alluvium on the valley floor could reach considerable depths. The project site straddles the interface between the valley floor and adjacent uplands, but does not appear to have been historically in close proximity to a stream. Based on the age of the landforms present and position in the landscape, there is general potential for the portions of the project site in the bottom of drainage and on the valley floor to contain (possibly deeply) buried pre-contact archaeological deposits. However, these areas likely have relatively low sensitivity given the distance to the closest historically documented stream.
Recommendations
Due to the high potential for historic-period archaeological deposits, LSA recommends archaeological monitoring of ground-disturbing construction activities in two areas of the project site: the general vicinity of the extant historic-period farm complex and the southeast corner of the project site, as shown in Attachment A: Figure 3. Following demolition of the existing structures, a qualified archaeologist should be contracted to monitor all ground-disturbing construction activities in these two areas, including grading, utility trenching, and foundation-related excavation.
No additional investigation is recommended at this time for the remainder of the project site given the relatively low sensitivity for pre-contact archaeological deposits. Recommendations are provided below should unanticipated pre-contact or historic-period materials be encountered during construction activities.
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8 2/7/22 (P:\DUB2101.02 Branaugh\PRODUCTS\Cultural\Archaeo report\LSA_Cultural Study_Branaugh.docx) Accidental Discovery of Archaeological Deposits
The following procedures should be followed in the event that archaeological deposits are identified inadvertently during project activities, and an archaeologist is not present on the site:
If deposits of pre -contact or historical archaeological materials are encountered during project activities, all work within 25 feet of the discovery should be redirected and the qualified archaeologist should assess the situation, consult with agencies as appropriate, and make recommendations for the treatment of the discovery. Project personnel should not collect or move any archaeological materials. Archaeological materials can include flaked-stone tools (e.g., projectile points, knives, and choppers) or obsidian, chert, basalt, or quartzite toolmaking debris; bone tools; culturally darkened soil (i.e., midden soil often containing heat-affected rock, ash and charcoal, shellfish remains, bones, and other cultural materials); and stone -milling equipment (e.g., mortars, pestles, and handstones). Pre -contact archaeological sites often contain human remains. Historic-period materials can include wood, stone, concrete, or adobe footings, walls, and other structural remains; debris-filled wells or privies; and deposits of wood, glass, ceramics, metal, and other refuse.
It is recommended that impacts to archaeological cultural resources be avoided by project activities.
If such deposits cannot be avoided, the Applicant should, in consultation with the City and (if applicable) local California tribal groups, evaluate the significance of the find under CEQA. If the find is determined to qualify as a historical resource (PRC §21084.1) or unique archaeological resource (PRC §21083.2), impacts to the deposit will need to be avoided or such impacts must be treated. If treatment is required, a plan should be developed in consultation with the Applicant and City to mitigate, avoid, or minimize impacts to cultural resources. Treatments may consist of, but are not necessarily limited to, systematic recovery and analysis of archaeological deposits; recording the resource; preparation of a report of findings; accessioning recovered archaeological materials at an appropriate curation facility; and community outreach. All reports produced as part of the evaluation and treatment of cultural resources identified during the project shall be submitted to the City for review and comment. All final documents should be submitted to the NWIC.
Accidental Discovery of Human Remains
In the event that human remains are encountered at any time during project work, State Health and Safety Code Section 7050.5 states that no further disturbance shall occur until the County Coroner has made a determination of origin and disposition pursuant to PRC Section 5097.98. The County Coroner must be notified of the find immediately. If the remains are determined to be Native American, the County Coroner would notify the NAHC within 24 hours. The NAHC would determine and notify a Most Likely Descendant (MLD) per PRC 5097.98. With the permission of the landowner or his/her authorized representative, the MLD may inspect the site of the discovery. The MLD shall complete the inspection and make recommendations or preferences for treatment within 48 hours of being granted access to the site. The MLD’s recommendations may include scientific removal and nondestructive analysis of human remains and items associated with Native American burials, preservation of Native American human remains and associated items in place, relinquishment of Native American human remains and associated items to the descendants for treatment, or any other culturally appropriate treatment.
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9 2/7/22 (P:\DUB2101.02 Branaugh\PRODUCTS\Cultural\Archaeo report\LSA_Cultural Study_Branaugh.docx) Please do not hesitate to contact me if you have any questions.
Sincerely,
LSA Associates, Inc.
Kendra Kolar, M.A.
Cultural Resources Analyst
Attachment: A: Project Figures
Figure 1: Project Site Location
Figure 2: Aerial Photo of the Project Site
Figure 3: Areas of Recommended Archaeological Monitoring B: NAHC SLF Results
C: Field Survey Photos
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REFERENCES CITED
Dibblee, Jr., Thomas W.
2006 Geologic Map of the Livermore Quadrangle, Contra Costa and Alameda Counties, California. 1:24,000. Santa Barbara Museum of Natural History, Santa Barbara, California.
Electronic document, https://ngmdb.usgs.gov/mapview/?center=- 121.826,37.711&zoom=15 (accessed January 2022).
Meyer, Jack, and Jeffrey Rosenthal
2007 Geoarchaeological Overview of the Nine Bay Area Counties in Caltrans District 4. Far Western Anthropological Research Group, Inc., Davis, California.
Natural Resources Conservation Service (NRCS)
2022 Web Soil Survey. Electronic document, https://websoilsurvey.sc.egov.usda.gov/App/ WebSoilSurvey.aspx (accessed January 2022).
NETRONLINE
2022 Historic Aerials. Electronic document, https://historicaerials.com/viewer# (accessed January 2022).
U.S. Geological Survey (USGS)
1906 Pleasanton, Calif., 1:62,500 topographic quadrangle. USGS, Washington, D.C. 1941 Pleasanton, Calif., 1:62,500 topographic quadrangle. USGS, Washington, D.C. 1953 Livermore, Calif., 7.5-minute topographic quadrangle. USGS, Washington, D.C. 1961 Livermore, Calif., 7.5-minute topographic quadrangle. USGS, Washington, D.C. 1968 Livermore, Calif., 7.5-minute topographic quadrangle. USGS, Washington, D.C. 1973 Livermore, Calif., 7.5-minute topographic quadrangle. USGS, Washington, D.C. 1980 Livermore, Calif., 7.5-minute topographic quadrangle. USGS, Washington, D.C.
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D UBLIN , ALAMEDA C OUNTY , C ALIFORNIA
P:\DUB2101.02 Branaugh\PRODUCTS\Cultural\Archaeo report\LSA_Cultural Study_Branaugh.docx (02/07/22)
ATTACHMENT A
PROJECT FIGURES
Figure 1: Project Site Location
Figure 2: Aerial Photo of the Project Site
Figure 3: Areas of Recommended Archaeological Monitoring
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SOURCE: USGS 7.5-minute Topo Quads -Livermore, Calif. (1980).
I:\DUB2101.02\GIS\Maps\Branaugh Property\Cultural\Figure 1_Project Site Location.mxd (1/25/2022) FIGURE 1
Branaugh Property Stage 2 Planned Development Project
Dublin, Alameda County, California
Project Site Location
Project Site
Project Location
0 1000 2000
FEET
Regional Location
746
SOURCE: Nearmap (09/2021).
I:\DUB2101.02\GIS\Maps\Branaugh Property\Cultural\Figure 2_Aerial Photo of Project Site.mxd (2/3/2022) FIGURE 2
Branaugh Property Stage 2 Planned Development Project
Dublin, Alameda County, California
Aerial Photo of Project Site
0 200 400
FEET
LEGEND
Project Site
747
SOURCE: Nearmap (09/2021).
I:\DUB2101.02\GIS\Maps\Branaugh Property\Cultural\Figure 3_Areas of Recommended Archaeological Monitoring.mxd (2/2/2022) FIGURE 3
Branaugh Property Stage 2 Planned Development Project
Dublin, Alameda County, California
Areas of Recommended Archaeological Monitoring
0 200 400
FEET
LEGEND
Project Site
Archaeological Monitoring Areas
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ATTACHMENT B
NAHC SLF RESULTS
749
STATE OF CALIFORNIA Gavin Newsom, Governor
NATIVE AMERICAN HERITAGE COMMISSION
February 4, 2022
Kendra Kolar
LSA Associates, Inc.
Via Email to: [email protected]
Re: Branaugh Property Stage 2 Planned Development Project, Alameda County
Dear Ms. Kolar:
A record search of the Native American Heritage Commission (NAHC) Sacred Lands File (SLF) was completed for the information you have submitted for the above referenced project. The results were negative. However, the absence of specific site information in the SLF does not indicate the absence of cultural resources in any project area. Other sources of cultural resources should also be contacted for information regarding known and recorded sites.
Attached is a list of Native American tribes who may also have knowledge of cultural resources in the project area. This list should provide a starting place in locating areas of potential adverse impact within the proposed project area. I suggest you contact all of those indicated; if they cannot supply information, they might recommend others with specific knowledge. By contacting all those listed, your organization will be better able to respond to claims of failure to consult with the appropriate tribe. If a response has not been received within two weeks of notification, the Commission requests that you follow-up with a telephone call or email to ensure that the project information has been received.
If you receive notification of change of addresses and phone numbers from tribes, please notify me. With your assistance, we can assure that our lists contain current information.
If you have any questions or need additional information, please contact me at my email address: [email protected].
Sincerely,
Cody Campagne
Cultural Resources Analyst
Attachment
CHAIRPERSON
Laura Miranda
Luiseño
VICE CHAIRPERSON
Reginald Pagaling
Chumash
PARLIAMENTARIAN
Russell Attebery
Karuk
SECRETARY
Sara Dutschke
Miwok
COMMISSIONER
William Mungary
Paiute/White Mountain
Apache
COMMISSIONER
Isaac Bojorquez
Ohlone-Costanoan
COMMISSIONER
Buffy McQuillen
Yokayo Pomo, Yuki,
Nomlaki
COMMISSIONER
Wayne Nelson
Luiseño
COMMISSIONER
Stanley Rodriguez
Kumeyaay
EXECUTIVE SECRETARY
Christina Snider
Pomo
NAHC HEADQUARTERS
1550 Harbor Boulevard
Suite 100
West Sacramento,
California 95691
(916) 373-3710
[email protected]
NAHC.ca.gov
Cody Campagne
750
Amah MutsunTribal Band of
Mission San Juan Bautista
Irene Zwierlein, Chairperson
3030 Soda Bay Road
Lakeport, CA, 95453
Phone: (650) 851 - 7489
Fax: (650) 332-1526
[email protected]
Costanoan
Costanoan Rumsen Carmel
Tribe
Tony Cerda, Chairperson
244 E. 1st Street
Pomona, CA, 91766
Phone: (909) 629 - 6081
Fax: (909) 524-8041
[email protected]
Costanoan
Indian Canyon Mutsun Band of
Costanoan
Ann Marie Sayers, Chairperson
P.O. Box 28
Hollister, CA, 95024
Phone: (831) 637 - 4238
[email protected]
Costanoan
Indian Canyon Mutsun Band of
Costanoan
Kanyon Sayers-Roods, MLD
Contact
1615 Pearson Court
San Jose, CA, 95122
Phone: (408) 673 - 0626
[email protected]
Costanoan
Muwekma Ohlone Indian Tribe
of the SF Bay Area
Monica Arellano, Vice
Chairwoman
20885 Redwood Road, Suite 232
Castro Valley, CA, 94546
Phone: (408) 205 - 9714
[email protected]
Costanoan
North Valley Yokuts Tribe
Katherine Perez, Chairperson
P.O. Box 717
Linden, CA, 95236
Phone: (209) 887 - 3415
[email protected]
Costanoan
Northern Valley
Yokut
North Valley Yokuts Tribe
Timothy Perez,
P.O. Box 717
Linden, CA, 95236
Phone: (209) 662 - 2788
[email protected]
Costanoan
Northern Valley
Yokut
The Ohlone Indian Tribe
Andrew Galvan,
P.O. Box 3388
Fremont, CA, 94539
Phone: (510) 882 - 0527
Fax: (510) 687-9393
[email protected]
Bay Miwok
Ohlone
Patwin
Plains Miwok
Wilton Rancheria
Jesus Tarango, Chairperson
9728 Kent Street
Elk Grove, CA, 95624
Phone: (916) 683 - 6000
Fax: (916) 683-6015
[email protected]
Miwok
Wilton Rancheria
Dahlton Brown, Director of
Administration
9728 Kent Street
Elk Grove, CA, 95624
Phone: (916) 683 - 6000
[email protected]
Miwok
Wilton Rancheria
Steven Hutchason, THPO
9728 Kent Street
Elk Grove, CA, 95624
Phone: (916) 683 - 6000
Fax: (916) 863-6015
shutchason@wiltonrancheria-
nsn.gov
Miwok
Wuksache Indian Tribe/Eshom
Valley Band
Kenneth Woodrow, Chairperson
1179 Rock Haven Ct.
Salinas, CA, 93906
Phone: (831) 443 - 9702
[email protected]
Foothill Yokut
Mono
1 of 2
This list is current only as of the date of this document. Distribution of this list does not relieve any person of statutory responsibility as defined in Section 7050.5 of the Health and Safety Code, Section 5097.94 of the Public Resource Section 5097.98 of the Public Resources Code.
This list is only applicable for contacting local Native Americans with regard to cultural resources assessment for the proposed Branaugh Property Stage 2 Planned Development Project, Alameda County.
PROJ-2022-
000386
02/04/2022 09:53 AM
Native American Heritage Commission
Native American Contact List
Alameda County
2/4/2022
751
The Confederated Villages of
Lisjan
Corrina Gould, Chairperson
10926 Edes Avenue
Oakland, CA, 94603
Phone: (510) 575 - 8408
[email protected]
Bay Miwok
Ohlone
Delta Yokut
2 of 2
This list is current only as of the date of this document. Distribution of this list does not relieve any person of statutory responsibility as defined in Section 7050.5 of the Health and Safety Code, Section 5097.94 of the Public Resource Section 5097.98 of the Public Resources Code.
This list is only applicable for contacting local Native Americans with regard to cultural resources assessment for the proposed Branaugh Property Stage 2 Planned Development Project, Alameda County.
PROJ-2022-
000386
02/04/2022 09:53 AM
Native American Heritage Commission
Native American Contact List
Alameda County
2/4/2022
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ATTACHMENT C
FIELD SURVEY PHOTOS
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P:\DUB2101.02 Branaugh\PRODUCTS\Cultural\Archaeo report\LSA_Cultural Study_Branaugh.docx (02/07/22) C-1
Photo C-1. Overview to south of valley floor within project site showing extant historic-period farm complex.
Photo C-2. Overview to north toward drainage in north half of project site. 754
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Photo C-3. Example of rodent bone in exposed soil.
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City of Dublin Branaugh Property Stage 2 Planned Development Initial Study | Appendices
Appendix F
Historic Resources Evaluation
756
CARLSBAD
FRESNO
IRVINE
LOS ANGELES
PALM SPRINGS
POINT RICHMOND
RIVERSIDE
ROSEVILLE
SAN LUIS OBISPO
157 Park Place, Pt. Richmond, California 94801 510.236.6810 www.lsa.net
MEMORANDUM
DATE: November 8, 2021
TO: Amy Million, Principal Planner, City of Dublin
FROM: Michael Hibma, Associate/Architectural Historian, LSA SUBJECT: Historical Resource Evaluation of the Branaugh Property at 1881 Collier Canyon Road, Dublin, Alameda County, California (LSA Project No.: DUB2101.02).
Dear Ms. Million,
LSA prepared a Historical Resource Evaluation (HRE) of a historic‐period farm complex containing four buildings over 50 years old: a circa 1958 two‐story, three‐bay barn, two mid‐20th c entury single family homes, and a detached shed on a 39.8‐acre property (APN 905‐01‐004‐04), in a semi‐rural setting just within a portion of the eastern boundary of the City of Dublin, Alameda County, California (project site) (Appendix A: Figures 1 and 2). The proposed project would de molish the existing buildings in the project site. A separate, single‐story single‐family residence constructed at the northwestern corner of the project site circa 1980 has not yet reached sufficient age to warrant evaluation for significance as a historical resource and is not addressed in this HRE.
LSA understands the proje
ct site was previously evaluated in 2004 for California Register of Historical Resources (CRHR) as part of the Eastern Dublin Properties Resource Management Plan (RMP) and again in 2019 for National Register of Historic Palaces (NRHP) eligibility as part of the Dublin Boulevard North Canyons Parkway Extension Project. The earlier study, in the form of a Supplemental Cultural Resources Review for built environment resources was prepared by cultural resources staff of San Leandro‐based Basin Research Associates, who found the project site’s built environment not eligible for individual or collective significance under any of the evaluative criteria of the CRHR. The la
ter study, in the form of an Archaeological Survey Report (ASR) was prepared by cultural resource staff of Walnut Creek‐based PaleoWest, who found the project site’s built environment was not eligible under any of the evaluative criteria of the NRHP. The ASR was Caltrans archaeologists reviewed and approved the ASR ’s findings on September 27, 2019.
Despite the 2004 Basin Research Associates study, LSA understands the project site’s status as a historical resource for the purposes of the California Environmental Quality Act (CEQA) remains unaddressed. To address this gap, this HRE included a review of the Basin Research Associates and PaleoWest studies for information
about the design, construction history, and ownership of the buildings in the project site. An LSA architectural historian also conducted a supplemental field review to document existing conditions to determine the status of the historic‐period farm complex at the southeastern corner of the project site using the evaluative criteria of the California Register of Historical Resources (C
RHR) fund at §5024.1 of the California Public Resources Code (PRC). 757
8/2/22 (P:\DUB2101.02 Branaugh\PRODUCTS\Cultural\HRE\LSA_HRE_Branaugh_Property_(11.2021).docx) 2 Based on background research and field observations, LSA concludes that the historic‐period farm complex in the project site is not eligible for inclusion in the CRHR due to a lack of historical significance. As such, the farm complex does not appear to be a historical resource for the purposes of CEQA. The methods, analysis, and conclusions of this HRE are pr esented in the sections that
follow. See Appendix B for Department of Parks and Recreation (DPR) 523 Series forms record update evaluation of the historic‐period farm complex utilizing the evaluative criteria of the CRHR.
Michael Hibma, M.A., AICP, completed the analysis. Mr. Hibma is an architectural historian at LSA’s Point Richmond office and has over 14 years of experience in cultural resources management. He holds an M.A. in History from California State University, Sacramento; meets the Secretary of the Interior’s Professional Qualifications Standards as an architectural historian and historian (Title 36 CFR Part 61); and is certified by the American Institute of Certifie d Planners (AICP #32009).
BACKGROUND RESEARCH
Records Searches
LSA reviewed the results of a record search requested by PaleoWest of the project site and a 0.25‐ mile radius on February 8, 2017 (NWIC File #16‐1157) by staff of the Northwest Information Center (NWIC) of the California Historical Resources Information System, Sonoma State University, Rohnert Park. The NWIC, an affiliate of the State of California Office of Historic Preservation, is the official State repository of cultural resource records and reports for Alameda County. An additional records search (NWIC File #17‐1264) was completed on November 3, 2018, using a wider one‐mile radius. A third records search (NWIC File #21‐0679) was completed on November 6, 2021, using a ½‐mile radius.
As part of the review of the previous NWIC records search results, LSA also reviewed the following local and State inventories for built environment cultural resources in and adjacent to the project site:
California Inventory of Historic Resources (California Department of Parks and Recreation 1976); Five Views: An Ethnic Historic Site Survey for California (California Office of Historic Preservation 1988);
California Points of Historical Interest (California Office of Historic Preservation 1992); California Historical Landmarks (California Office of Historic Preservation 1996); An Architectural Guidebook to San Francisco and the Bay Area (Cerny 2007); A Living Legacy: Historic Architecture of the East Bay (Wilson 1987); and Built Environment Resource Directory: Alameda County (California Office of Historic Preservation 2021). The directory includes the listings of the NRHP, National Historic Landmarks, CRHR, California Historical Landmarks, and California Points of Historical Interest.
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8/2/22 (P:\DUB2101.02 Branaugh\PRODUCTS\Cultural\HRE\LSA_HRE_Branaugh_Property_(11.2021).docx) 3 Results. The records searches identified one previously recorded cultural resource within the project site.
1881 Collier Canyon Road, Livermore (Collier Ranch). This resource was identified by Basin Research Associates in November 2004 as part of a supplemental cultural resources review in support of the Eastern Dublin Properties Resource Management Plan (RMP). Basin Research reviewed documentation prepared for the RMP, conducted a pedestrian field survey, and prepared a CRHR‐based evaluation of the buildings in the projec t site. The Basin Research
evaluation found that the Collier Ranch does not appear either individually or as a group to be eligible for the [CRHR] (Basin Research Associates 2004). No other resources within the project site were identified.
The records search id entified five previously identified cultural resources within one mile of the project site.
P‐01‐002114/CA‐ALA‐508/H, 4J Ranch Site;
P‐01‐000124/CA‐ALA‐000394, Pleasanton Meadows Site;
P‐1‐001776, JR‐3 (Channelized canal segment);
P‐01‐002122/CA‐ALA‐516H, GD‐6 (remains of a homestead); and P‐01‐010526, Livermore Airport Prehistoric/Historic Site.
LSA reviewed the online Built Environment Resources Directory and identified the following resources added after the PaleoWest evaluation:
PW‐127‐3; 1818 [sic] Collier Canyon Road.1 On November 7, 2019, the Office of Historic Preservation assigned California Historical Resource Status Code of 6Y to this resource indicating that this resource was “[d]etermined ineligible for NR[HP] by consensus through Section 106 process – Not evaluated for CR[HR] or local listing” (OHP 2021). PW‐127‐4; 1421 Collier Canyon Road (east of and adjacent to the project site). On November 7, 2019, the Office of Historic Preservation assigned California Historical Resource Status Code of 6Y to this resource indicating that this resource was “[d]etermined ineligible for NR[HP] by consensus through Section 106 process – Not evaluated for CR[HR] or local listing” (OHP 2021).
Map Review
LSA reviewed the following maps for historical information about the project site and its vicinity:
1 It appears this address in incorrect. 1818 Collier Canyon Road does not correspond to a current physical address. LSA believes the correct address is 1881 Collier Canyon Road, i.e., the project site. 759
8/2/22 (P:\DUB2101.02 Branaugh\PRODUCTS\Cultural\HRE\LSA_HRE_Branaugh_Property_(11.2021).docx) 4 Pleasanton, Calif., 15‐minute topographic quadrangle (U.S. Geological Survey 1906, 1941, 1953, and 1961); and
Livermore, Calif., 7.5‐minute topographic quadrangle (U.S. Geological Survey 1953, 1961, 1968, 1973, and 1980.
Results. The Pleasanton, Calif., 15‐minute quadrangles depict the project site as largely undeveloped land. An unnamed road to Livermore is depicted roughly corresponding to modern Interstate 580. In 1941, the project site shown with one black square, indicating the presence of an earlier building since demolished (barns and other substantial outbuildings are shown by the USG S by an uncolored square or rectangle). The Inman School is clearly named at the southeastern corner of intersection of then‐U.S. Highway 50 and modern Doolan Road. By 1953, no changes are shown in the project site. A new square building shape is shown east of and adjacent to the project site, this may correspo
nd to modern day 1421 Collier Canyon Road /APN 905‐001‐0102 and ;‐302 (PaleoWest Resource Number PW‐127‐4).
By 1961, one additional residential building is depicted in the project site and is accessed via an unpaved driveway and the rectangular uncolored shape is depicted where the modern barn building is. The black square shape near the road shown in 1953 is no longer depicted USGS 1906, 1941, 1953, and 1961). Subsequent maps show intensifying development south of and across four‐lane U.S. 50 and Interstate 580, examples include the Livermore Airpor t, the Las Positas Golf Course, and the Santa Route Rehabilitation Center. An increasing level of development, mostly south of the highway continues through the 1980s. A notable change is the construction of the modern Airway Boulevard and Collier Canyon Road off‐ramp structure and the modern alignment of Collier Canyon Road (USG
S 1968, 1973, and 1980).
FIELD REVIEW
LSA architectural historian Michael Hibma reviewed the exterior of the buildings in the project site at 1881 Collier Canyon Road and vicinity on October 14, 2021. The purpose of the review was to characterize their architectural style and to identify alterations.
Project Site Description
The project site contains a historic‐period farm complex north of Interstate 580 along the edge of the Diablo Range foothills that form the northern boundary of the Amador Valley. The complex contains four detached buildings: a two‐story barn, two single‐family residences, and a detached shed or workshop. A separate detached , single‐story, single‐family residence at the far northwestern corner of the property. The project site also includes an oval‐shaped parking lot south of the barn, a covered seating area, paved drives ways and lawns and landscaped areas near the detached residences. The project site also contains vehicles and equip ment storage areas.
Alterations observed generally consisted of textured, non‐original stucco cladding, signage, modern replacement fenestration, modern replacement entrances, vegetation, and security lighting. These buildings are modest examples of a general Vernacular style architecture and is similar in visual 760
8/2/22 (P:\DUB2101.02 Branaugh\PRODUCTS\Cultural\HRE\LSA_HRE_Branaugh_Property_(11.2021).docx) 5 appearance to contemporary residential and agricultural outbuildings in rural eastern Alameda County and rural areas statewide.
Property Ownership1
An evaluation of the project site prepared in November 2018 by cultural resources staff PaleoWest indicated the project site was entirely within Rancho Santa Rita, an 8800‐acre grant given to Jose Dolores Pacheco in 1839 and used for cattle grazing. In 1854 Samuel Barclay Martin bought Rancho Santa Rita. Eight years later Martin sold Owen Paul Sutton and Elias Nelson Conway 640 acres of land in Murray Township that included the project, Three years alter in 1865 Conway and Sutton sold San Lorenzo resident and merchant Augusts Melville Church land that included the project site.
He resided on his ranch by the late 1860s and 1870s. In 1872, he deed a portion of his land to the Inman School District. By 1877, Church sold and moved to Oakland.
In 1878, Owen R. Owen had purchased 320 acres north of Positas Creek from Church. There is no indication that Owen lived in what would become the prese nt project site. In 1900, the parcel belonged to R.S. Farrelly and in 1910 to H. Farrelly. In 1927, the Farrelly Ranch was sold and the property’s then‐new owner appears to have settled on the parcel, by 1939 per an aerial photograph, as one building was shown, what appears to be a small house to the east of Croak Road. In 1934, the owner, Alice M. Short, deeded a portion of the land to the State of California, likely for the construction of the highway. However, the evidence reviewed suggests that these individuals did not live at or conduct thei r work at the project site.
HISTORICAL AND ARCHITECTURAL CONTEXT
Please see Appendix B for DPR 523 Series forms. A full historical context is provided in the ASR.
ELIGIBILITY EVALUATION
Background research, including a records search, a literature review, archival research, and a field review by an architectural historian identified one potential built environment cultural resource more than 50 years old in the project site: an historic‐period farm complex at 1881 Collier Canyon Road. Please see Appendix B for DPR 523 Series forms, which cont ain a CRHR‐based eligibility evaluation of the building as a Continuation Sheet Update to the PaleoWest DPE 523 from record prepared in November 2018 by PaleoWest cultural resource staff.
CONCLUSION
PaleoWest previously evaluated the historic‐period farm complex at 1881 Collier Canyon Road in November 2018. The project site contains a two‐story, three‐bay barn, two mid‐20th century houses, and a shed. Modern modular sheds and containers less than 50 years old are also present on site and are associated with operation of current businesses. The evaluation in the PaleoW est ASR found the historic‐period farm complex was ineligible for inclusion in the NRHP due to a lack of a historical significance. Based on the results of this HRE, LSA concurs with the 2004 Basin Research
1 This section is adapted from an Archaeological Survey Report for the Dublin Boulevard‐North Canyon Parkway Extension, Alameda County, California. 2019. Pages 20‐21. PaleoWest Archaeology, Walnut Creek, California. On file at Caltrans District 4, 111 Grand Avenue, Oakland, California. See Appendix D. 761
8/2/22 (P:\DUB2101.02 Branaugh\PRODUCTS\Cultural\HRE\LSA_HRE_Branaugh_Property_(11.2021).docx) 6 Associates’ and the 2018 PaleoWest findings that the farm complex in the project site at 1881 Collier Canyon Road is not eligible for inclusion in the CRHR or NRHP under any significance criteria. For these reasons, the project site’s built environment do not appear to qualify as historical resources for the purposes of CEQA (PR C §21084.1).
Sincerely,
Michael Hibma, M.A., AICP
Associate/Architectural Historian
Attached: Appendix A Figures 1 and 2
Appendix B DPR 523 Series Forms ‐ PW‐127‐3; 1881 Collier Canyon Road 762
8/2/22 (P:\DUB2101.02 Branaugh\PRODUCTS\Cultural\HRE\LSA_HRE_Branaugh_Property_(11.2021).docx) 7 REFERENCES CONSULTED1
California Office of Historic Preservation (OHP)
1988 Five Views: An Ethnic Historic Site Survey for California. California Department of Parks and Recreation, Sacramento.
1992 California Points of Historical Interest. California Department of Parks and Recreation, Sacramento.
1996 California Historical Landmarks. California Department of Parks and Recreation, Sacramento.
2001 California Environmental Quality Act (CEQA) and Historical Re sources. California Department of Parks and Recreation, Sacramento.
2021 California Historical Landmarks: Alameda. Electronic document, http://ohp.parks.ca.gov/?page_id=21388, accessed various. 2021 Built Environment Resources Directory (BERD) – Alameda County. Electronic document, https://ohp.parks.ca.gov/?page_id=30338&fbclid=IwAR0llwakK0TWEKbwaJaRY6N64TdqxX B64bN4kJTcLB_9ONg5Md9t2f88gLs, accessed various.
Basin Research Associates
2004 1881 Collier Canyon Road, Livermore (Collier Ranch) Eastern Dubli n Properties Resource Management Plan (RMP) area Supplemental Cultural Resources Review ‐ Built Environment City of Dublin, Alameda County (APN 905‐0001‐004‐04). Basin Research Associates, San Leandro. On file at NWIC, Sonoma State University, Rohnert Park (S‐30611).
Cerny, Susan Dinkelspiel
2007 An Architectural Guidebook to San Francisco and the Bay Area. Gibbs Smith Publisher, Santa
Barbara, California.
PaleoWest
2018 Archaeological Survey Report for the Dublin Boulevard North Canyon Parkway Extension, Alameda County, California. DPR 523 from record: 1881 Collier Canyon Road/PW‐ 1274‐3. On File with Caltrans District 4, Oakland, California.
ParcelQuest
2021 Assessor’s Parcel Information. Electroni c document, http://www.parcelquest.com/, accessed various.
U.S. Geological Survey (USGS)
1906 Pleasanton, Calif., 15‐minute topographic quadrangle. USGS, Washington, D.C. 1941 Pleasanton, Calif., 15‐minute topographic quadrangle. USGS, Washington, D.C.
1 For a full set of references consulted, please see the DPR523 forms in Appendix B of this report. 763
8/2/22 (P:\DUB2101.02 Branaugh\PRODUCTS\Cultural\HRE\LSA_HRE_Branaugh_Property_(11.2021).docx) 8 1953 Pleasanton, Calif., 15‐minute topographic quadrangle. USGS, Washington, D.C. 1961 Pleasanton, Calif., 15‐minute topographic quadrangle. USGS, Washington, D.C. 1953 Livermore, Calif., 7.5‐minute topographic quadrangle. USGS, Washington, D.C. 1961 Livermore, Calif., 7.5‐minute topographic quadrangle. USGS, Washington, D.C. 1968 Livermore, Calif., 7.5‐minute topographic quadrangle. USGS, Washington, D.C. 1973 Livermore, Calif., 7.5‐minute topographic
quadrangle. USGS, Washington, D.C.
1980 Livermore, Calif., 7.5‐minute topographic quadrangle. USGS, Washington, D.C.
Wilson, Mark A.
1987 A Living Legacy: Historic Architecture of the East Bay. Lexikos Press, San Francisco, California.
Woodbridge, Sally B., John M. Woodbridge and Chuck Byrne 1992 San Francisco Architecture: The Illu strated Guide to Over 1,000 of the Best Buildings, Parks, and Public Artworks in the Bay Area. Chronicle Books, San Francisco, California. 2005 San Francisco Architecture: An Illustrated Guide to the Outstanding Buildings, Public Artworks, and Parks in the Bay Area of California. Ten Speed Press, Toronto, Canada.
764
8/2/22 (P:\DUB2101.02 Branaugh\PRODUCTS\Cultural\HRE\LSA_HRE_Branaugh_Property_(11.2021).docx) 9 APPENDIX A: MAPS
Figure 1: Regional location and Project Site
Figure 2: Project Site
765
SOURCE: ESRI World Street Map (03/20).
I:\DUB2101.02\Maps\Figure 1_Regional Location.mxd (9/8/2021) FIGURE 1
Branaugh Property Stage 2 Planned Development
Regional Location
Project Site
Project Location
0 1000 2000
FEET
766
SOURCE: USGS 7.5-minute Topo Quads -Livermore, Calif. (1980).
I:\DUB2101.02\GIS\Maps\Branaugh Property\Cultural\Records Search Map.mxd (10/4/2021) FIGURE 2
Branaugh Property Stage 2 Planned Development
Dublin, Alameda County, California
Project Site
0 1000 2000
FEET
LEGEND
Project Site
767
8/2/22 (P:\DUB2101.02 Branaugh\PRODUCTS\Cultural\HRE\LSA_HRE_Branaugh_Property_(11.2021).docx) 10 APPENDIX B: DPR SERIES 523 FORMS – PW‐127‐3; 1881 COLLIER CANYON ROAD, DUBLIN, CALIFORNIA
768
State of California – The Resources Agency Primary #
DEPARTMENT OF PARKS AND RECREATION HRI #
CONTINUATION SHEET Trinomial
Recorded by: Michael Hibma, M.A., AICP Date: 11/1/21 Continuation X Update L3. Description
This record serves as an update for a historic-period farmstead at 1881 Collier Canyon Road . This farm complex is comprised of four buildings over 50 years old: a circa 1958 two-story, three-bay barn, two mid-20th century single family homes, and a detached shed on a 39.8-acre property (APN 905-01-004-04), in a semi-rural setting just within a portion of the eastern boundary of the City of Dublin, Alameda County . Basin Research Associates previously evaluated this resource in 2004 for California Register of Historical Resources (CRHR) eligibility . In 2019, PaleoWest conducted a National Register of Historic Palaces (NRHP) eligibility as part of the Dublin Boulevard North Canyons Parkway Extension Project. PaleoWest prepared an Archaeological Survey Report that was reviewed and accepted by Caltrans in 2019. Both Basin Research Associates and PaleoWest found the farm complex not eligible under any CRHR or NRHP evaluative criteria. PaleoWest designed this resource as PW-1 27-3. On November 7, 2019, the Office of Historic Preservation assigned California Historical Resource Status Code of 6Y to this resource indicating that this resource was “[d]etermined ineligible for NR[HP] by consensus through Section 106 process – Not evaluated for CR[HR] or local listing.” The farm complex is therefore not a historical resource for the purposes of the California Environmental Quality Act (CEQA). This farm complex was identified and recorded on November 1, 2021, in support of a proposed demolition project.
L9. Remarks
This continuation sheet update was prepared by LSA Associates architectural historian Michael Hibma, M.A., AICP on November 1, 2021 . This addendum updates the DPR 523 form record prepared in November 2018 by PaleoWest in support of the Archaeological Survey Report for the Dublin Boulevard North Canyon Parkway Extension Project, prepared by Evan Tudor Elliot M.A., RPA. The evaluation in the PaleoWest ASR found the historic-period farm complex was ineligible for inclusion in th e NRHP due to a lack of a historical significance. This update addresses the farm complex’s status as a historical resource for the purposes of the California Environmental Quality Act (CEQA) via the CRHR evaluative criteria. Mr. Hibma visited the project site on October 14, 2021, to inspect the built environment, identify its notable elements, and apply the CRHR evaluative criteria to the earlier PaleoWest resource record.
Based on the results of this HRE, LSA concurs with the 2004 Basin Research Associat es’ and the 2018 PaleoWest findings that the farm complex in the project site at 1881 Collier Canyon Road is not eligible for inclusion in the CRHR or NRHP under any significance criteria due to a lack of historical significance. For these reasons, the project site’s built environment do not appear to qualify as historical resources for the purposes of CEQA (PRC §21084.1).
References
Basin Research Associates
2004 1881 Collier Canyon Road, Livermore (Collier Ranch) Eastern Dublin Properties Resource Management Plan (RMP) area Supplemental Cultural Resources Review - Built Environment City of Dublin, Alameda County (APN 905-0001-004-04). Basin Research Associates, San Leandro. On file at NWIC, Sonoma State University, Rohnert Park (S-30611).
LSA Associates
2021 Historical Resource Evaluation of the Branaugh Property at 1881 Collier Canyon Road, Dublin, Alameda County, California. LSa Associates, Point Richmond, California.
PaleoWest
2018 Archaeological Survey Report for the Dublin Boulevard North Canyon Parkway Extension, Alameda County, California. DPR 523 from record: 1881 Collier Canyon Road/PW-127-3. On File with Caltrans District 4, Oakland, California.
DPR 523L (1/95) 769
State of California – The Resources Agency Primary #
DEPARTMENT OF PARKS AND RECREATION HRI #
CONTINUATION SHEET Trinomial
Recorded by: Michael Hibma, M.A., AICP Date: 11/1/21 Continuation X Update L8a. Photographs (continued)
PW127-3. Barn building. South and east façades, view northwest. LSA photograph, 11/1/21.
PW127-3. Barn building. North façade, view south. LSA photograph, 11/1/21.
DPR 523L (1/95)
770
State of California – The Resources Agency Primary #
DEPARTMENT OF PARKS AND RECREATION HRI #
CONTINUATION SHEET Trinomial
Recorded by: Michael Hibma, M.A., AICP Date: 11/1/21 Continuation X Update L8a. Photographs (continued)
PW127-3. House 1. West and south façades, view northeast. LSA photograph, 11/1/21.
PW127-3. House 1. West and north façades, view southeast. LSA photograph, 11/1/21.
DPR 523L (1/95)
771
State of California – The Resources Agency Primary #
DEPARTMENT OF PARKS AND RECREATION HRI #
CONTINUATION SHEET Trinomial
Recorded by: Michael Hibma, M.A., AICP Date: 11/1/21 Continuation X Update L8a. Photographs (continued)
PW127-3. House 2. South and east façades, view northwest. LSA photograph, 11/1/21.
PW127-3. House 2. East and north façades, view southwest. LSA photograph, 11/1/21.
DPR 523L (1/95)
772
State of California – The Resources Agency Primary #
DEPARTMENT OF PARKS AND RECREATION HRI #
CONTINUATION SHEET Trinomial
Recorded by: Michael Hibma, M.A., AICP Date: 11/1/21 Continuation X Update L8a. Photographs (continued)
PW127-3. Shed. South and west façades, view northeast. LSA photograph, 11/1/21.
PW127-3. Shed. South and east façades, view northwest. LSA photograph, 11/1/21.
DPR 523L (1/95)
773
State of California – The Resources Agency Primary #
DEPARTMENT OF PARKS AND RECREATION HRI #
CONTINUATION SHEET Trinomial
Recorded by: Michael Hibma, M.A., AICP Date: 11/1/21 Continuation X Update L8a. Photographs (continued)
PW127-3. Chicken coop. North and west “façades”, view southeast. LSA photograph, 11/1/21.
PW127-3. View southeast towards farm complex. Interstate 580 and Livermore Valley beyond.
LSA photograph, 11/1/21.
DPR 523L (1/95)
774
DPR 523A (1/95) *Required information
State of California The Resources Agency Primary #
DEPARTMENT OF PARKS AND RECREATION HRI #
PRIMARY RECORD Trinomial
NRHP Status Code
Other Listings
Review Code Reviewer Date
P1. Other Identifier: N/A
*P2. Location: Not for Publication Unrestricted *a. County: Alameda and (P2b and P2c or P2d. Attach a Location Map as necessary.) *b. USGS 7.5' Quad: Livermore, CA Date: 1961 (1980) T; R; ¼ of ¼ of Sec ; SB B.M. c. Address: 1881 Collier Canyon Road City: Livermore Zip: 94551 d. UTM: Zone: 10; 602824 mE/ 4173568 mN
e. Other Locational Data: (e.g., parcel #, directions to resource, elevation, etc., as appropriate): The property is located north of Collier Canyon Road and north of Interstate 580 at the base of the foothills on the northern edge of Amador Valley, within AP N 905-01-004-04
*P3a. Description: (Describe resource and its major elements. Include design, materials, condition, alterations, size, setting, and boundaries) This resource is a historic-period farm complex on the northern edge of Amador Valley. It currently retains four buildings over 50 years in age: a ca. 1958 barn, two mid-20th-century single family residences, and a shed. A single-family residence constructed ca. 1980 is located on the northwest portion of the property. Modern modular sheds and containers associated with operation of the current business are also located on the property. The property also includes hardscaped such as paved areas and landscaped vegetation.
(See continuation sheet)
*P3b. Resource Attributes:
(List attributes and codes) HP33. Farm/ ranch
*P4. Resources Present: Building Structure Object Site District Element of District Other (Isolates, etc.) P5b. Description of Photo: (
View of barn, facing northwest, 11/16/18
*P6. Date Constructed/Age and Sources:
Historic
Prehistoric Both
Ca. 1958 (Barn, Shed, House 1), ca. 1965
(House 2); ca. 1980 (House 3); Aerial
photographs and maps
*P7. Owner and Address:
Branaugh Robert D TR Trust
*P8. Recorded by:
P. Zingerella
PaleoWest
1870 Olympic Boulevard
Walnut Creek, CA 94596
*P9. Date Recorded: November 2018
*P10. Survey Type: Intensive pedestrian
*P11. Report Citation:
Wildt, Jennifer, and Evan Tudor Elliott. 2018. Archaeological Survey Report for the Dublin Boulevard North Canyon Parkway Extension, Alameda County, CA. On File with Caltrans District 4
*Attachments: NONE Location Map Sketch Map Continuation Sheet Building, Structure, and Object Record Archaeological Record District Record Linear Feature Record Milling Station Record Rock Art Record Artifact Record Photograph Record Other (List):
P5a. Photo or Drawing (
775
DPR 523B (1/95) *Required information
State of California The Resources Agency Primary #
DEPARTMENT OF PARKS AND RECREATION HRI#
BUILDING, STRUCTURE, AND OBJECT RECORD
*Resource Name or # (Assigned by recorder) PW-127-3
B1. Historic Name: N/A
B2. Common Name: 1881 Collier Canyon Road
B3. Original Use: Farm/ranch B4. Present Use: Landscaping business *B5. Architectural Style: Vernacular
*B6. Construction History: (Construction date, alterations, and date of alterations) Barn: constructed ca. 1958 ( NETR Online 2018); Shed: constructed ca . 1958 ( NETR Online 2018 ); House 1: constructed ca. 1958 (NETR Online 2018); House 2: constructed ca. 1965 (NETR Online 2018); House 3: constructed ca. 1980 (NETR Online 2018).
*B7. Moved? No Yes Unknown Date: N/A Original Location: N/A *B8. Related Features: N/A
B9a. Architect: Unknown b. Builder: Unknown
*B10. Significance: Theme: Area:
Period of Significance: Property Type: Applicable Criteria:
(Discuss importance in terms of historical or architectural context as defined by theme, period, and geographic scope. Also address integrity.)
Owen R. Owen had purchased 320 acres north of Positas Creek from Church by 1878 (Thompson and West 1878 ). There are no structures or roads/trails depicted at the location of P-127-3 on the 1878 map, and no indication that Owen lived at this location on the property. Owen was a Welsh immigrant who began farming on the Doughtery Ranch near Dublin between 1863 and 1869. He married Mary E. Murphy, a native of Alvardo in Alameda County in 1878 and the pair had three sons, two of which were living i n 1883 (Woods 1883:957). According to the 1870 United States Census records for Murray Township, O.W. Owen was a 30-y ear-old, Welsh-born laborer sharing a residence with 16 other male laborers between the ages of 23 and 38, born in Mexico, Ireland, Prussia, France, Scotland, and the United States. The residences enumerated before and after Owen’s were both occupied by Chinese-born male laborers.
In 1900, the parcel belonged to R.S. Farrelly (Nusbaumer and Boardman 1900), and in 1910 to H. Farrelly (Haviland 1910). No buildings are depicted at this location on the 1906 USGS Pleasanton 15-minute topographic quadrangle. Robert S. And Henrietta Farrelly were childless, elderly Pennsylvania -born farmers and real estate investors who, in 1900, lived on San Leandro Road between San Leandro and Elmhurst. By 1910, the 72-year-old Henrietta Farrelly was widowed and living supported by her own income, some of which was drawn from renting or leasing properties like this property.
After her death in late 1927, her Murray Township property was put up for sale along with six other properties owned by Mrs.
Farrelly (Oakland Tribune 25 March 1928). The subdivided property’s new owner appears to have settled on the parcel, as at the time of 1939 and 1940 aerial photographs at least four buildings and at least two additional structures are present within what appear to be a small farm oriented toward Highway 50 to the south, with trails crossing the fields connecting to the nearby property at 1421 Collier Canyon Road to the southeast. Research has yielded no additional information regarding Owen, Murphey, the Farrellys, or any other owners or tenets on the property.
(See continuation sheet)
B11. Additional Resource Attributes: N/A
*B12. References:
Refer to Continuation Sheet
B13. Remarks:
N/A
*B14. Evaluator: J. Castells
*Date of Evaluation: November 2018
(Sketch Map with north arrow required.)
Please See Attached Sketch Map
776
State of California - The Resources Agency
DEPARTMENT OF PARKS AND RECREATION
LOCATION MAP
Primary #
HRI #
Trinomial: