Well Information
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Identification
Type of Report: Water Well
Type of Work: NEW
Well Report: UMAT 59063 View Log Groundwater Site
Well Label: 136256
Start Card: 1060089
Original Report:
Owner Well Nbr: WELL 11B
Company Job Nbr:
Primary Use: COMMUNITY
Complete Date: 04/18/2023
Land Owner
Name:
Company: CITY OF PENDLETON
Address: 500 SW DORION AVE

PENDLETON, OR 97801
Location
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Latitude/Longitude
Latitude: 45.66849600
Longitude: -118.83490600
Horiz. Error: 99.00 ft.
Location
County: UMAT
TRSQQ: WM2.00N32.00E8SWNE
Tax Map:
Tax Lot: 700
Lot:
Block:
Subdivision:
Street of Well: 4300 SW HOUTAMA RD PENDLETON, OR 97801
WM District: 5
Surface Elev: 1006.81 FT
Well Report Mapping Tool
Tax Lots

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Well Construction
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Construction
Start Date: 02/16/2023
Completed Date: 04/18/2023
Drill Method: Rotary Air
Depth of Completed Well: 400.00
Est. Depth Drilled: 400.00
Special Standards:
Seal Placed Method: B
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)
124.000.0011.00
223.0011.00257.00
319.00257.00400.00
Seal
RowMaterialFrom (ft)To (ft)AmountAmount Calc.
1Cement0.00257.00276.00168.00
Abandonment Log
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Casing/Liner
Temporary Casing
Perforations
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Screens
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Well Test
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Well Test
Temperature: 55 F
Lab Analysis:
Lab Analysis Done By:
Total Dissolved Solids: 181.00 ppm
Water Quality Concerns:
Well Test
Analysis
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Static Water Level
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Static Water Level
Depth First Water: 7.50
Pre-Static Water Level:
Pre-Static Water Level Date:
Post-Static Water Level: 209.40
Post-Static Water Level Date: 04/18/2023
Static Water Level
RowDateFrom(ft)To(ft)SWLEst. Flow RatePSI
12/20/20237.508.50 2.0 
23/22/2023259.00265.00212.0050.0 
33/23/2023280.00316.00209.64100.0 
43/24/2023341.00356.00209.40250.0 
Lithology
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Material
RowFromToMaterialStatic Water Level
10.005.00TOP SOIL WITH MIXED GRAVELS 
25.008.50LARGE GRAVELS 
38.509.60BASALT 
49.6022.00BLACK BASALT HARD 
522.0064.00MEDIUM HARD BASALT 
664.0076.00HARD BASALT 
776.0095.00MED/SOFT BASALT MIX WITH RED ROCK FRACTURED UP 
895.00105.00HARD BASALT 
9105.00119.00HARD BASALT 
10119.00120.00MEDIUM/HARD BASALT 
11120.00122.00HARD BASALT 
12122.00130.00MEDIUM/HARD BASALT 
13130.00140.00BROKEN UP/MEDIUM BASALT 
14140.00163.00MEDIUM/HARD BASALT 
15163.00178.00BROKEN UP/MEDIUM BASALT, RED LAVA ROCK MIX, SOME WATER 
16178.00189.00HARD BASALT RED LAVA ROCK MIX 
17189.00209.00BROKEN UP BROWN LAVA ROCK, BLACK BASALT MIX 
18209.00230.00HARD BASALT 
19230.00231.00BROKEN UP HARD BLACK BASALT 
20231.00240.00HARD BLACK BASALT 
21240.00242.00BROKEN UP BLACK BASALT 
22242.00259.00HARD BLACK BASALT 
23259.00261.00BROKEN UP MEDIUM BLACK BASALT MINOR WATER ZONE 
24261.00265.00BROKEN UP MIX OF BLACK AND BROWN BASALT 
25265.00280.00MEDIUM HARD BROWN AND BLACK BASALT 
26280.00316.00BROKEN UP BLACK BASALT (WATER ZONE) 
27316.00341.00HARD BLACK BASALT 
28341.00356.00MEDIUM/SOFT BLACK BASALT, BROKEN UP. INCREASE IN WATER 
29356.00373.00HARD BASALT 
30373.00383.00BROKEN UP BLACK BASALT 
31383.00400.00MEDIUM BLACK BASALT 
Well Constructor
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Bonded Driller Name: ROBERT STADELI
Bonded Driller Company: HOLT SERVICES INC
Bonded Driller Number: 1523
Bonded Date Signed: 05/04/2023
Unbonded Name: MCDONALD,DUKE
Unbonded Company: HOLT SERVICES INC
Unbonded Number: 2086
Unbonded Date Signed: 05/04/2023
Other Name:
Other Affiliation:
Other License Nbr:
Geologist Engineer:
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Documents
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TitleDocument TypeSourceDownload Image
UMAT 59063EXEMPT USE MAPDRILLERImage
UMAT 59063WELL REPORTDRILLERImage