PZ - Geotech Report Friendship
Subdivision
Soils Report
September 2021
Lot 2 of Block 1 of
Blythe Subdivision
Meridian, Idaho
i
% . 116
h' D , GP
B & A Engineers, Inc.
Consulting Engineers & Land Surveyors
5505 West Franklin Road. Boise, ID 83705
Telephone 208.343.3381 Facsimile 208.342.5792
Ilk Established in 1921
INTRODUCTION
This report provides general soil information that has been mapped by the
Natural Resources Conservation Service (NRCS).
NRCS Data
According to the NRCS Ada County soil survey, the site is comprised to two soil
groups:
Abo Silt Loam
Purdam Silt Loam
The NRCS soil map and the cut sheets for the soils are included in this report.
Highlights of the data provided by NRCS are:
Abo Silt Loam
0 to 10 inches Silt Loam
10 to 23 inches Clay Loam
23 to 58 inches Loam
58 to 65 inches Fine Gravelly Course Sandy Loam
0 to 3% Ground Slope
>80 inches Water Table
Purdam Silt Loam
0 to 4 inches Silt Loam
4 to 10 inches Silt Loam (different ienz)
10 to 13 inches Silty Clay Loam
13 to 19 inches Silt Loam
19 to 24 inches Silt Loam (different lenz)
24 to 38 inches Cemented Material -- Hardpan
38 to 60 inches Stratified Sand to Loam
0 to 2% Ground Slope
>80 inches Water Table
OTHER INFORMATION
The Settlers Canal traverses the site in a northwesterly direction from the east
boundary to near the west boundary. Development of the site will require its
relocation.
Lands to the east, south and west of the site have been developed to urban
densities. Land to the north is a developed church site with large landscaped
areas.
Page 2 of 7
Proud to be Serving
Idaho for 100 Years
r �
{
.
`
NRCS Soil Map
1 +
Soil Types on Site: 1 Abo Silt Loam
141 Purclam Silt Loam
Page
Proud • •- Serving
Idaho for 100 Years
Map Wit Desa vbon:At*silt loam.0 to 3 percent stcgm—Ma County.Idaho FmrfthV Sub&Asian
Ada County, Idaho
1—Abo silt loam,0 to 3 percent slopes
Map UnH Setting
National map unit symbol: 2g5h
Elevation: 2.500 to 4,400 feet
Mean annualprecipitatlon: 8 to 11 inches
Mean annual air temperature: 45 to 50 degrees F
Frost-free period. 110 to 160 days
Farmland classification: Prim farmland if irrigated and reclaimed of
excess salts and sodium
Map Unit Composition
Abo, warm,and similar soils. 85 percent
Minor components. 15 peroent
Estimates are based on observations, descdptions,and transects of
the mapunit.
Descrlptlon of Abo,Warn
Setting
Landk m:Stream terraoes,dralnageways
Down-slope shape:Linear
Across-slope shape_Linear
Parent material.Mixed alluvium andlor lacustrine deposits
Typical profile
Ap-0 to 10 inche& silt loam
Btk- 10 to 23 Inches: clay loam
Sk-23 to 58 inches. loam
2C-58 to 65 inches, fine gravelly coarse sandy loam
Properties and qualities
Slope:0 to 3 percent
Depth to restrictive feature:More than 80 inches
Drainage class:Somewhat poorly drained
Capacity of the most limiting layer to transmit water
(Ksat):Moderately high(0.20 to 0.60 frtlhr)
Depth to water table:About 30 to 60 Inches
Frequency of flooding. NoneRare
Frequency of ponding:None
Calcium carbonate,maximum content 25 percent
Maximum salinity.Very slightly saline to moderately saline(2.0 to
8.0 mmtwslcm)
Sodium adsorption ratio,maximum:5.0
Available water supply,0 to 60 inches: High(about 10.8 inches)
Interprethre groups
Land capability dassiRcation(irrigated). 3e
Land capability classilication(noninigated) 6c
Hydrlolaglc Soil Group. C
Natural Rasoiuc" VNeb Sol Stnvey
i Conservation Servke National C.coperaM Sol survey
Page 4 of 7
Proud to be Serving
Idaho for 100 Years
Map UNt Descriptroe Abo sit loam,0 to 3 percent scopes.—Ada County.Idaho Friendstip SubdKis=
Ecotogkal site_ R011XY0011D-LOAMY 8-12-Provisional
Hydrlc soft rating: No
Minor Components
Power
Percent of map unit:4 percent
Hyddc soft rating: No
Purdam
Percent of map unit:4 percent
Hyddc salt rating: No
Aerlc haplaquopts
Percent of map unit, 4 percent
Hyd4c soil rating. No
Urban land
Percent of map unit:3 percent
Hyddc soil rating: unranked
Data Source Information
Soil Survey Area: Ada County,Idaho
Survey Area Data: Version 9,Sep 9.2021
Natural Resources — Web So!Survey
Conservation Sarvke National Cooperative Sort Sumoy
Page 5 of 7
Proud to be Serving
Idaho for 100 Years
Map Und Desmptfon:Purdam Mil loam.0 to 2 percent slopes--Ada Ca xoy.Idaho Friendship Subdivision
Ada County, Idaho
141—Purdam slit loam,0 to 2 percent slopes
Map Unit Setting
National map unit symbol_ 2g70
Elevation- 2,000 to 5,000 feet
Mean annual predpitation- 8 to 12 inches
Mean annual air temperature. 45 to 52 degrees F
Frost-free period- 110 to 160 days
Farmland dassiflcaffw: Prime farmland I!irrigated
Map Unit Composttion
Purdam.plowed,and similar soils. 90 percent
Mnor components: 10 percent
Estimates are based on observations,descriptions. and transects of
the mapunit.
Description of Purdam,Plowed
Setting
Landform:Stream terraces
Doyen-slope shape:Linear
Across-slope shape:Linear
Parent material. Mixed alluvium and/or lacustrine deposits and/or
loess
Typical profile
Apt-0 to 4 inches. silt loam
Apt-4 to 10 Inches: sill loam
Bt1- 10 to 13 inches- silty day loam
812- 13 to 19 inches. slit loam
Bkq- 19 to 24 inches. silt loam
Bkqm-24 to 38 inches: cemented material
2C-38 to 60 inches: stratified sand to loam
Properties and qualitles
Slope:0 to 2 percent
Depth to restrictive feature. 20 to 40 Inches to duripan
Drainage dass Well drained
Capacity of the most limiting layer to transmit water{Ksay.Very low
to,moderately low(0.00 to 0.06 inlhr)
Depth to water table:More than 80 inches
Frequency of flooding.Norte
Frequency of pond ng.None
Calcium carbonate,maximum content:25 percent
Maximum salinity. Nonsaline to slightly saline(0.0 to 4.0
mmhos/cm)
Sodium adsorpffm ratio,maximum: 10.0
Available water supply. 0 to W inches: Low(about 4.7 inches)
Nattaal Resowua Web Soi Survey
Conservation ssrvke National CoopetaWe Soil Survey
Page 6 of 7
Proud to be Serving
Idaho for 100 Years
MaiP Unit besaiption:Pwdam sit loam,0 to 2pwum dopes.—Ada County.kWw Fnendatnp Sub*viaion
Interpretive groups
Land capability ctassftatran(!r»gated). 3s
Land capability classftelion(noninfgated). Bc
Hydrologic Soil Group. C
Ecological site. R011XY001 aD-LOAMY 8-12-Provisional
Hydric soil rating- No
Minor components
Elijah
Percent of map unit. 3 percent
Hyddc soil rating: No
Abo
Percent of map unit.3 percent
Hydrlc soil rating: No
Sebfee
Percent of wrap unit.2 percent
Hyddc soli rating: No
Pourer
Percent of map unit. 2 percent
Hydrlc soil rating: No
Data Source Information
Soil Survey Area: Ada County.Idaho
Survey Area Data: Version 9.Sep 9,2021
Natural Resources Web Sol Survey
Conservetlon Servke Nabonat Cooperative Soil Survey
Page 7 of 7
Proud to be Serving
Idaho for 100 Years