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2021.0053 21-120 soils rpt 2021-09-23 • BECAUSE RESULTS MATTER • PO Box 4420, Tumwater, WA, 98501 • (360) 250-3973 • email: erik@thelanddeveloper.com DEVELOPER’S THE LAND THE LAND DEVELOPER, Inc. ENGINEERED SOLUTION a division of September 23, 2021 Amber Hodges Project Manager Blackrock Industries 1106 39th Ave SE Puyallup, WA 98374 Re: Farrelli’s Soils Report for Design Infiltration Rates Site Address: 813 W Yelm Avenue, Yelm, Washington 98597 Parcel Number: 21724130700 Dear Ms. Hodges: At your request, I have prepared this soils report. A site visit was performed on 8/9/21 to assess site conditions. The subject site consists of a previously developed lot with an existing restaurant and small parking lot on the east half of the parcel. The surrounding area consists of commercial properties. The lot is located on the west side of Yelm Highway. The site topography is generally sloping from the east to west. The approximately 1.61 acre (Per Thurston County Assessor data) property is vegetated with grass. The United States Natural Resource Conservation Service maps the soils in the area as Spanaway gravelly sandy loam. These soils are listed as Type A soils. No groundwater or mottling was observed in any of the test pits. The project is not located in an aquifer recharge area or a wellhead protection area as defined by the Grays Harbor County Health Department, the EPA or by the county. There are no known ravines, or wetlands located on the site. There are no known basin plans for the area. Refer to the attachments for applicable Soils Maps. The Washington Geologic Information Portal lists the onsite soils as the following: GEOLOGIC_UNIT_LABEL:Qgd GEOLOGIC_UNIT_DESC:Pleistocene till and outwash clay, silt, sand, gravel, cobbles, and boulders deposited by or originating from continental glaciers; locally includes peat, nonglacial sediments, modified land, and artificial fill. GEOLOGIC_UNIT_POLY_500K_ID:14608 GEOLOGIC_AGE:Quaternary (Pleistocene) Re: Farrelli’s Soils Report for Design Infiltration Rates Site Address: 813 W Yelm Avenue, Yelm, Washington 98597 Parcel Number: 21724130700 September 23, 2021 Page 2 PO Box 4420, Tumwater, WA, 98501 • (360) 250-3973 • email: erik@thelanddeveloper.com Each of the test pits were observed to determine soil infiltration feasibility. It appeared to have soils consistent with USDA soils maps. There did not appear to be groundwater or mottling for the depth of the test pit. Based upon the attached sieve tests the soils worst case soils that were encountered was consistent with a gravel with sand soil type. Based upon Method 2 Soil Property Relationships Method an infiltration rate of 20 inches per hour and a design infiltration rate of 10 inches per hour should be used for an infiltration design for project. Once again, thank you for the opportunity to work with you on this project. Please feel free to give me a call if you have any questions. Sincerely, The Land Developer, Inc. Erik B. Ainsworth, PE President Attachments: SCS Soils Map Site plan with soil logs Sieve Reports 20 . 0 2 ' S 3 6 ° 2 2 ' 3 5 " W 3 0 2 . 0 2 ' S 3 6 ° 2 6 ' 5 1 " W 2 7 9 . 5 0 'N 53°33'9"W 172.36'N 53°30'7"W 195.55'35034935134834734634634634534534434334234133933834034534 5 34 434 334 234 1 34 0 10SCALE:1" = 40'4080THE LAND DEVELOPER'S ENGINEERED SOLUTION 5737 LINDERSON WAY SW, TUMWATER, WA. 98501 PO BOX 4420, TUMWATER, WA. 98501 (360) 890-4806 E-MAIL: erik@thelanddeveloper.com THE LAND DEVELOPER, INCa division of ERI K B AINSWORTHPROFESSIONAL ENGI N EER STA T E OF WASHINGTONREGISTERED09/23/21FARRELLIS BLACKROCK 813 W YELM AVE YELM, WA 98597 BLACKROCK INDUSTRIESSHEET OFPROJECT: CLIENT: DATE:PROJECT NUMBER:109/23/21 20-139 FARRELLIS BLACKROCK1107 VINE AVE SW. OLYMPIA, WA 98502TP #2TP #3TP #1 Soil Map—Thurston County Area, Washington Natural Resources Conservation Service Web Soil Survey National Cooperative Soil Survey 9/23/2021 Page 1 of 351993005199330519936051993905199420519945051994805199300519933051993605199390519942051994505199480528990529020529050529080529110529140529170529200529230529260 528990 529020 529050 529080 529110 529140 529170 529200 529230 529260 46° 56' 53'' N 122° 37' 9'' W46° 56' 53'' N122° 36' 55'' W46° 56' 47'' N 122° 37' 9'' W46° 56' 47'' N 122° 36' 55'' WN Map projection: Web Mercator Corner coordinates: WGS84 Edge tics: UTM Zone 10N WGS84 0 50 100 200 300 Feet 0 20 40 80 120 Meters Map Scale: 1:1,380 if printed on A landscape (11" x 8.5") sheet. Soil Map may not be valid at this scale. MAP LEGEND MAP INFORMATION Area of Interest (AOI) Area of Interest (AOI) Soils Soil Map Unit Polygons Soil Map Unit Lines Soil Map Unit Points Special Point Features Blowout Borrow Pit Clay Spot Closed Depression Gravel Pit Gravelly Spot Landfill Lava Flow Marsh or swamp Mine or Quarry Miscellaneous Water Perennial Water Rock Outcrop Saline Spot Sandy Spot Severely Eroded Spot Sinkhole Slide or Slip Sodic Spot Spoil Area Stony Spot Very Stony Spot Wet Spot Other Special Line Features Water Features Streams and Canals Transportation Rails Interstate Highways US Routes Major Roads Local Roads Background Aerial Photography The soil surveys that comprise your AOI were mapped at 1:24,000. Warning: Soil Map may not be valid at this scale. Enlargement of maps beyond the scale of mapping can cause misunderstanding of the detail of mapping and accuracy of soil line placement. The maps do not show the small areas of contrasting soils that could have been shown at a more detailed scale. Please rely on the bar scale on each map sheet for map measurements. Source of Map: Natural Resources Conservation Service Web Soil Survey URL: Coordinate System: Web Mercator (EPSG:3857) Maps from the Web Soil Survey are based on the Web Mercator projection, which preserves direction and shape but distorts distance and area. A projection that preserves area, such as the Albers equal-area conic projection, should be used if more accurate calculations of distance or area are required. This product is generated from the USDA-NRCS certified data as of the version date(s) listed below. Soil Survey Area: Thurston County Area, Washington Survey Area Data: Version 14, Jun 4, 2020 Soil map units are labeled (as space allows) for map scales 1:50,000 or larger. Date(s) aerial images were photographed: Jul 18, 2020—Jul 20, 2020 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. Soil Map—Thurston County Area, Washington Natural Resources Conservation Service Web Soil Survey National Cooperative Soil Survey 9/23/2021 Page 2 of 3 Map Unit Legend Map Unit Symbol Map Unit Name Acres in AOI Percent of AOI 110 Spanaway gravelly sandy loam, 0 to 3 percent slopes 3.9 54.3% 112 Spanaway stony sandy loam, 0 to 3 percent slopes 3.3 45.7% Totals for Area of Interest 7.3 100.0% Soil Map—Thurston County Area, Washington Natural Resources Conservation Service Web Soil Survey National Cooperative Soil Survey 9/23/2021 Page 3 of 3 Sources: Esri, HERE,Garmin, USGS, Intermap,INCREMENT P, NRCan,Esri Japan, METI, Esri Geology Portal N 1 0 0.09 0.180.045 Miles 500k Surface Ge ology Geologic Units 500K Qd, Holocene dune sand Qa, Quaternary alluvium Qls, Quaternary mass-wasting deposits Ql, Quaternary loess Qf, Pleistocene outburst-flood deposits Qgd, Pleistocene continental glacial drift Qad, Pleistocene alpine glacial drift QTc, Quaternary-Tertiary continental sedimentary rocks and deposits Tc, Tertiary continental sedimentary rocks MZc, Mesozoic continental sedimentary rocks Tn, Tertiary nearshore sedimentary rocks MZn, Mesozoic nearshore sedimentary rocks Tm, Tertiary marine sedimentary rocks MZm, Mesozoic marine sedimentary rocks Qv, Quaternary volcanic rocks QTv, Quaternary-Tertiary volcanic rocks Tv(cr), Tertiary volcanic rocks, Columbia River Basalt Group Tv, Tertiary volcanic rocks Tv(c), Tertiary volcanic rocks, Crescent Formation MZv, Mesozoic volcanic rocks Qvt, Quaternary fragmental volcanic rocks and deposits (includes lahars) Tvt, Tertiary fragmental volcanic rocks Qi, Quaternary intrusive rocks QTi, Quaternary-Tertiary intrusive rocks Ti, Tertiary intrusive rocks TKi, Tertiary-Cretaceous intrusive rocks Project:Project Number:Client:Test Pit No. Farrelli’s Yelm 21-120 Blackrock Industries 1 Address, City, State Excavator pit test Logged By:Started: EBA 10AM Weather:Completed: Overcast and light rain 11PM Backfilled: YES Groundwater Depth:Elevation:Total Depth of test pit: None observed 8 FT Lithology Brown topsoil with roots Brown Medium Dense Poorly graded Gravel with sand GP 1 Bulk/ Bag Sample End test pit @ 8 ft, No groundwater or mottling observed Civil Engineering Boring Log: Sheet __of ___ Standard Penetration Slit Spoon Sampler (SPT) California Sampler StabIlized Ground water Shelby Tube Groundwater At time of Drilling CPP Sampler Bulk/ Bag Sample Parcels 21724130700 Dry Density (pcf)Moisture Content (%)Additional TestSoil Group Name: modifier, color, moisture, density/consistency, grain size, other descriptors Rock Description: modifierm color, hardness/degree of concentration, bedding and joint characteristics, solutions, void conditions.DateDepth (feet)Sample TypeSample NumberBlow Counts (blows/foot)Graphic Log5 10 Project:Project Number:Client:Test Pit No. Farrelli’s Yelm 21-120 Blackrock Industries 2 Address, City, State Excavator pit test Logged By:Started: EBA 10AM Weather:Completed: Overcast and light rain 11PM Backfilled: YES Groundwater Depth:Elevation:Total Depth of test pit: None observed 8 FT Lithology Brown topsoil with roots Brown Medium Dense Poorly graded Gravel with sand GP 1 Bulk/ Bag Sample End test pit @ 8 ft, No groundwater or mottling observed Civil Engineering Boring Log: Sheet __of ___ Standard Penetration Slit Spoon Sampler (SPT) California Sampler StabIlized Ground water Shelby Tube Groundwater At time of Drilling CPP Sampler Bulk/ Bag Sample Parcels 21724130700 Dry Density (pcf)Moisture Content (%)Additional TestSoil Group Name: modifier, color, moisture, density/consistency, grain size, other descriptors Rock Description: modifierm color, hardness/degree of concentration, bedding and joint characteristics, solutions, void conditions.DateDepth (feet)Sample TypeSample NumberBlow Counts (blows/foot)Graphic Log5 10 Project:Project Number:Client:Test Pit No. Farrelli’s Yelm 21-120 Blackrock Industries 3 Address, City, State Excavator pit test Logged By:Started: EBA 10AM Weather:Completed: Overcast and light rain 11PM Backfilled: YES Groundwater Depth:Elevation:Total Depth of test pit: None observed 8 FT Lithology Brown topsoil with roots Brown Medium Dense Poorly graded Gravel with sand & silt GP-GM 1 Bulk/ Bag Sample End test pit @ 8 ft, No groundwater or mottling observed Civil Engineering Boring Log: Sheet __of ___ Standard Penetration Slit Spoon Sampler (SPT) California Sampler StabIlized Ground water Shelby Tube Groundwater At time of Drilling CPP Sampler Bulk/ Bag Sample Parcels 21724130700 Dry Density (pcf)Moisture Content (%)Additional TestSoil Group Name: modifier, color, moisture, density/consistency, grain size, other descriptors Rock Description: modifierm color, hardness/degree of concentration, bedding and joint characteristics, solutions, void conditions.DateDepth (feet)Sample TypeSample NumberBlow Counts (blows/foot)Graphic Log5 10 Project:Date Received:18-Aug-21 Project #:Sampled By:Client Client:Date Tested:20-Aug-21 Source:Tested By:K. Mendez Sample#:B21-1469 D(5) =0.094 mm % Gravel =56.3%Coeff. of Curvature, CC =0.53 Specifications D(10) =0.259 mm % Sand =39.2%Coeff. of Uniformity, CU =58.72 No Specs D(15) =0.408 mm % Silt & Clay =4.6%Fineness Modulus =5.55 Sample Meets Specs ?N/A D(30) =1.446 mm Liquid Limit =n/a Plastic Limit =n/a D(50) =8.360 mm Plasticity Index =n/a Moisture %, as sampled =4.9% D(60) =15.216 mm Sand Equivalent =n/a Req'd Sand Equivalent = D(90) =59.306 mm Fracture %, 1 Face =n/a Req'd Fracture %, 1 Face = Dust Ratio =29/99 Fracture %, 2+ Faces =n/a Req'd Fracture %, 2+ Faces = Actual Interpolated Cumulative Cumulative Sieve Size Percent Percent Specs Specs US Metric Passing Passing Max Min 12.00"300.00 100%100.0%0.0% 10.00"250.00 100%100.0%0.0% 8.00"200.00 100%100.0%0.0% 6.00"150.00 100%100.0%0.0% 4.00"100.00 100%100.0%0.0% 3.00"75.00 100%100%100.0%0.0% 2.50"63.00 92%100.0%0.0% 2.00"50.00 84%84%100.0%0.0% 1.75"45.00 82%100.0%0.0% 1.50"37.50 78%100.0%0.0% 1.25"31.50 75%100.0%0.0% 1.00"25.00 71%71%100.0%0.0% 3/4"19.00 65%65%100.0%0.0% 5/8"16.00 61%100.0%0.0% 1/2"12.50 57%57%100.0%0.0% 3/8"9.50 52%52%100.0%0.0% 1/4"6.30 46%100.0%0.0% #4 4.75 44%44%100.0%0.0% #8 2.36 39%100.0%0.0% #10 2.00 38%38%100.0%0.0% #16 1.18 26%100.0%0.0% #20 0.850 22%100.0%0.0% #30 0.600 18%100.0%0.0% #40 0.425 16%16%100.0%0.0% #50 0.300 11%100.0%0.0% #60 0.250 10%100.0%0.0% #80 0.180 7%100.0%0.0% #100 0.150 6%6%100.0%0.0% #140 0.106 5%100.0%0.0% #170 0.090 5%100.0%0.0% #200 0.075 4.6%4.6%100.0%0.0% Copyright Spears Engineering & Technical Services PS, 1996-98 Comments: Reviewed by: Meghan Blodgett-Carrillo All results apply only to actual locations and materials tested. As a mutual protection to clients, the public and ourselves, all reports are submitted as the confidential property of clients, and authorization for publication of statements, conclusions or extracts from or regarding our reports is reserved pending our written approval. Sieve Report ASTM C136, ASTM D6913, ASTM C117 21S108 The Land Developers Q.C. - The Land Developers 2021 Unified Soil Classification System, ASTM-2487 Yelm Ferellis TP1 SL#1 @ 4 ft ASTM D2216, ASTM D2419, ASTM D4318, ASTM D5281 GP, Poorly graded Gravel with Sand brown Sample Color:8"6"4"2"3"1½"1¼"10"1"¾"5/8"½"3/8"¼"#4#8#10#16#20#30#40#50#60#80#100#140#170#2000% 10% 20% 30% 40% 50% 60% 70% 80% 90% 100% 0.0% 10.0% 20.0% 30.0% 40.0% 50.0% 60.0% 70.0% 80.0% 90.0% 100.0% 0.0010.0100.1001.00010.000100.000% Passing% PassingParticle Size (mm) Grain Size Distribution Sieve Sizes Max Specs Min Specs Sieve Results Environmental ● Geotechnical Engineering ● Special Inspection ● Non-Destructive Testing ● Materials Testing Burlington | Olympia | Bellingham | Silverdale | Tukwila 360.755.1990 www.mtc-inc.net Project:Date Received:18-Aug-21 Project #:Sampled By:Client Client:Date Tested:20-Aug-21 Source:Tested By:K. Mendez Sample#:B21-1470 D(5) =0.090 mm % Gravel =65.7%Coeff. of Curvature, CC =0.55 Specifications D(10) =0.268 mm % Sand =29.7%Coeff. of Uniformity, CU =91.84 No Specs D(15) =0.456 mm % Silt & Clay =4.6%Fineness Modulus =6.04 Sample Meets Specs ?N/A D(30) =1.908 mm Liquid Limit =n/a Plastic Limit =n/a D(50) =19.924 mm Plasticity Index =n/a Moisture %, as sampled =2.0% D(60) =24.613 mm Sand Equivalent =n/a Req'd Sand Equivalent = D(90) =53.897 mm Fracture %, 1 Face =n/a Req'd Fracture %, 1 Face = Dust Ratio =29/92 Fracture %, 2+ Faces =n/a Req'd Fracture %, 2+ Faces = Actual Interpolated Cumulative Cumulative Sieve Size Percent Percent Specs Specs US Metric Passing Passing Max Min 12.00"300.00 100%100.0%0.0% 10.00"250.00 100%100.0%0.0% 8.00"200.00 100%100.0%0.0% 6.00"150.00 100%100.0%0.0% 4.00"100.00 100%100.0%0.0% 3.00"75.00 100%100%100.0%0.0% 2.50"63.00 94%100.0%0.0% 2.00"50.00 88%88%100.0%0.0% 1.75"45.00 83%100.0%0.0% 1.50"37.50 74%100.0%0.0% 1.25"31.50 68%100.0%0.0% 1.00"25.00 61%61%100.0%0.0% 3/4"19.00 48%48%100.0%0.0% 5/8"16.00 44%100.0%0.0% 1/2"12.50 40%40%100.0%0.0% 3/8"9.50 38%38%100.0%0.0% 1/4"6.30 35%100.0%0.0% #4 4.75 34%34%100.0%0.0% #8 2.36 31%100.0%0.0% #10 2.00 31%31%100.0%0.0% #16 1.18 22%100.0%0.0% #20 0.850 19%100.0%0.0% #30 0.600 16%100.0%0.0% #40 0.425 15%15%100.0%0.0% #50 0.300 11%100.0%0.0% #60 0.250 9%100.0%0.0% #80 0.180 7%100.0%0.0% #100 0.150 6%6%100.0%0.0% #140 0.106 5%100.0%0.0% #170 0.090 5%100.0%0.0% #200 0.075 4.6%4.6%100.0%0.0% Copyright Spears Engineering & Technical Services PS, 1996-98 Comments: Reviewed by: Meghan Blodgett-Carrillo Sieve Report ASTM C136, ASTM D6913, ASTM C117 21S108 The Land Developers Q.C. - The Land Developers 2021 Unified Soil Classification System, ASTM-2487 Yelm Ferellis TP2 SL#2 @ 4 ft ASTM D2216, ASTM D2419, ASTM D4318, ASTM D5281 GP, Poorly graded Gravel with Sand brown Sample Color: All results apply only to actual locations and materials tested. As a mutual protection to clients, the public and ourselves, all reports are submitted as the confidential property of clients, and authorization for publication of statements, conclusions or extracts from or regarding our reports is reserved pending our written approval.8"6"4"2"3"1½"1¼"10"1"¾"5/8"½"3/8"¼"#4#8#10#16#20#30#40#50#60#80#100#140#170#2000% 10% 20% 30% 40% 50% 60% 70% 80% 90% 100% 0.0% 10.0% 20.0% 30.0% 40.0% 50.0% 60.0% 70.0% 80.0% 90.0% 100.0% 0.0010.0100.1001.00010.000100.000% Passing% PassingParticle Size (mm) Grain Size Distribution Sieve Sizes Max Specs Min Specs Sieve Results Environmental ● Geotechnical Engineering ● Special Inspection ● Non-Destructive Testing ● Materials Testing Burlington | Olympia | Bellingham | Silverdale | Tukwila 360.755.1990 www.mtc-inc.net Project:Date Received:18-Aug-21 Project #:Sampled By:Client Client:Date Tested:20-Aug-21 Source:Tested By:K. Mendez Sample#:B21-1471 D(5) =0.074 mm % Gravel =48.8%Coeff. of Curvature, CC =0.19 Specifications D(10) =0.196 mm % Sand =46.2%Coeff. of Uniformity, CU =81.72 No Specs D(15) =0.274 mm % Silt & Clay =5.1%Fineness Modulus =5.01 Sample Meets Specs ?N/A D(30) =0.772 mm Liquid Limit =n/a Plastic Limit =n/a D(50) =3.209 mm Plasticity Index =n/a Moisture %, as sampled =4.1% D(60) =15.989 mm Sand Equivalent =n/a Req'd Sand Equivalent = D(90) =46.157 mm Fracture %, 1 Face =n/a Req'd Fracture %, 1 Face = Dust Ratio =6/29 Fracture %, 2+ Faces =n/a Req'd Fracture %, 2+ Faces = Actual Interpolated Cumulative Cumulative Sieve Size Percent Percent Specs Specs US Metric Passing Passing Max Min 12.00"300.00 100%100.0%0.0% 10.00"250.00 100%100.0%0.0% 8.00"200.00 100%100.0%0.0% 6.00"150.00 100%100.0%0.0% 4.00"100.00 100%100.0%0.0% 3.00"75.00 100%100%100.0%0.0% 2.50"63.00 97%100.0%0.0% 2.00"50.00 94%94%100.0%0.0% 1.75"45.00 89%100.0%0.0% 1.50"37.50 82%100.0%0.0% 1.25"31.50 76%100.0%0.0% 1.00"25.00 70%70%100.0%0.0% 3/4"19.00 63%63%100.0%0.0% 5/8"16.00 60%100.0%0.0% 1/2"12.50 57%57%100.0%0.0% 3/8"9.50 54%54%100.0%0.0% 1/4"6.30 52%100.0%0.0% #4 4.75 51%51%100.0%0.0% #8 2.36 49%100.0%0.0% #10 2.00 49%49%100.0%0.0% #16 1.18 36%100.0%0.0% #20 0.850 31%100.0%0.0% #30 0.600 27%100.0%0.0% #40 0.425 25%25%100.0%0.0% #50 0.300 17%100.0%0.0% #60 0.250 13%100.0%0.0% #80 0.180 9%100.0%0.0% #100 0.150 7%7%100.0%0.0% #140 0.106 6%100.0%0.0% #170 0.090 5%100.0%0.0% #200 0.075 5.1%5.1%100.0%0.0% Copyright Spears Engineering & Technical Services PS, 1996-98 Comments: Reviewed by: Meghan Blodgett-Carrillo All results apply only to actual locations and materials tested. As a mutual protection to clients, the public and ourselves, all reports are submitted as the confidential property of clients, and authorization for publication of statements, conclusions or extracts from or regarding our reports is reserved pending our written approval. Sieve Report ASTM C136, ASTM D6913, ASTM C117 21S108 The Land Developers Q.C. - The Land Developers 2021 Unified Soil Classification System, ASTM-2487 Yelm Ferellis TP3 SL#3 @ 5 ft ASTM D2216, ASTM D2419, ASTM D4318, ASTM D5281 GP-GM, Poorly graded Gravel with Silt and Sand brown Sample Color:8"6"4"2"3"1½"1¼"10"1"¾"5/8"½"3/8"¼"#4#8#10#16#20#30#40#50#60#80#100#140#170#2000% 10% 20% 30% 40% 50% 60% 70% 80% 90% 100% 0.0% 10.0% 20.0% 30.0% 40.0% 50.0% 60.0% 70.0% 80.0% 90.0% 100.0% 0.0010.0100.1001.00010.000100.000% Passing% PassingParticle Size (mm) Grain Size Distribution Sieve Sizes Max Specs Min Specs Sieve Results Environmental ● Geotechnical Engineering ● Special Inspection ● Non-Destructive Testing ● Materials Testing Burlington | Olympia | Bellingham | Silverdale | Tukwila 360.755.1990 www.mtc-inc.net