Well Information
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Identification
Type of Report: Water Well
Type of Work: NEW
Well Report: WASH 78749 View Log Groundwater Site
Well Label: 133799
Start Card: 1046421
Original Report:
Owner Well Nbr:
Company Job Nbr: ARROW 20-05
Primary Use: IRRIGATION
Complete Date: 03/18/2020
Land Owner
Name: MATTHEW ROLOFF
Company:
Address: 23985 NW GROSSEN DR

HILLSBORO, OR 97124
Location
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Latitude/Longitude
Latitude: 45.59881000
Longitude: -122.92662000
Horiz. Error: 9.00 ft.
Location
County: WASH
TRSQQ: WM1.00N2.00W3NWSW
Tax Map: 1N 2 3
Tax Lot: 3300
Lot:
Block:
Subdivision:
Street of Well: 23985 NW GROSSEN DR
WM District: 18
Surface Elev:
Well Report Mapping Tool
Tax Lots

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Well Construction
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Construction
Start Date: 02/25/2020
Completed Date: 03/18/2020
Drill Method: Rotary Air
Depth of Completed Well: 532.00
Est. Depth Drilled: 532.00
Special Standards:
Seal Placed Method:
Abandonment Start Date:
Abandonment Completed Date:
Backfill
Backfill Placement: ft to ft
Backfill Material:
Explosives Used:
Explosive Type:
Explosive Amount:
Filter Pack
Filter Pack:
Filter Pack Material:
Filter Pack Size:
Bore Hole
RowDiameter (in)From (ft)To (ft)
113.380.00122.00
212.00122.00384.00
38.00384.00532.00
Seal
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Abandonment Log
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Casing/Liner
Temporary Casing
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Perforations
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Screens
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Well Test
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Well Test
Temperature: 54 F
Lab Analysis:
Lab Analysis Done By:
Total Dissolved Solids: 98.00 ppm
Water Quality Concerns:
Well Test
Analysis
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Static Water Level
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Static Water Level
Depth First Water: 121.00
Pre-Static Water Level:
Pre-Static Water Level Date:
Post-Static Water Level: 128.50
Post-Static Water Level Date: 03/21/2020
Static Water Level
RowDateFrom(ft)To(ft)SWLEst. Flow RatePSI
12/26/2020121.00133.0033.0010.0 
23/12/2020197.00375.0085.00200.0 
33/21/2020511.00524.00128.50360.0 
Lithology
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Material
RowFromToMaterialStatic Water Level
10.002.00GRAVEL FILL 
22.0026.00CLAY BROWN SILTY OCC GRIT 
326.0057.00CLAY REDDISH BROWN SOFT TO FIRM AND STIFF 
457.0074.00CLAY GRAY STIFF 
574.00109.00CLAY RED STIFF W/SOME ROTTEN ROCK 
6109.00121.00CLAY TAN/BROWN/YELLOW W/VERY ROTTEN ROCK BROWN 
7121.00133.00BASALT GRAY/BROWN DECOMP WITH SOFT VESIC 
8133.00167.00BASALT BROWN WITH PROG FIRMER 
9167.00171.00CLAY GRAY/WHITE 
10171.00177.00BASALT GRAY MED 
11177.00197.00BASALT GRAY HRD 
12197.00201.00BASALT GRAY VESIC 
13201.00208.00BASALT GRAY SLIGHTLY VESIC 
14208.00215.00BASALT GRAY VESIC 
15215.00253.00BASALT GRAY HRD WELL FRACT 
16253.00267.00BASALT GRAY HRD WELL FRACT 
17267.00323.00BASALT GRAY HRD OCC FRACT 
18323.00328.00BASALT GRAY/BLK VESIC 
19323.00328.00BASALT GRAY/BLK VESIC 
20328.00331.00BASALT BROWN VESIC 
21331.00335.00BASALT GRAY SLIGHTLY VESIC 
22335.00357.00BASALT GRAY HRD 
23357.00361.00BASALT GRAY VESIC 
24361.00375.00BASALT GRAY SLIGHTLY VESIC OCC FRACT 
25375.00497.00BASALT GRAY HARD OCC SLIGHT FRAC 
26497.00505.00BASALT GRAY SOFTER SLIGHTLY VESIC 
27505.00511.00BASALT GRAY HRD 
28511.00515.00BASALT GRAY VESIC 
29515.00520.00BASALT GRAY HRDER 
30520.00524.00BASALT GRAY VESIC W / CLAYSTONE GREEN 
31524.00532.00BASALT GRAY HRD 
Well Constructor
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Bonded Driller Name: JOHN STADELI
Bonded Driller Company: ARROW DRILLING
Bonded Driller Number: 1483
Bonded Date Signed: 03/23/2020
Unbonded Name:
Unbonded Company:
Unbonded Number:
Unbonded Date Signed:
Other Name:
Other Affiliation:
Other License Nbr:
Geologist Engineer:
Comments
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Documents
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TitleDocument TypeSourceDownload Image
WASH 78749WELL REPORTDRILLERImage