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U.S. Geological Survey Open-File Report 03-034

Groundwater and Piezometric Levels on Weeks Creek Landslide
  UTM Lat/Long Elevation
Location: 10565379E 37°21'11"N 1040 ft
  4134084N 122°15'42"W  
Depth to groundwater level or piezometric surface
Negative sign indicates water level above ground surface
  Piezometers Piezometers Inclinometer
Date Piez 1 Piez 2 Piez 3 Piez 4 I1
(ft) (ft) (ft) (ft) (ft)
1981-1982
9/17/81 11.25 11.08 15.79 dry 28.75
10/31/81 12.79 12.67 14.00 dry 29.54
11/19/81 11.92 11.92 13.08 dry 18.33
11/30/81 5.67 5.42 12.08 dry 27.00
12/4/81 7.04 6.75 11.08 dry 29.42
12/11/81 7.46 7.17 10.58 dry 29.08
12/17/81 7.21 6.83 10.21 dry 29.29
12/21/81 1.50 1.00 10.29 2.83 25.25
12/24/81 2.00 1.50 9.75 2.46 21.89
12/30/81 0.96 0.58 8.71 0.21 11.38
1/6/82 1.13 0.58 9.04 0.13 8.83
1/8/82 1.21 0.58 9.29 0.17 9.50
1/13/82 1.17 0.67 9.04 0.42 10.42
2/3/82 1.58 1.50 9.63 n/a 10.50
2/12/82 1.08 0.67 8.00 0.67 10.38
2/17/82 1.58 0.50 8.13 -0.83 6.99
2/24/82 0.75 0.50 9.42 0.13 8.96
3/5/82 0.75 0.50 9.67 0.50 9.46
3/16/82 0.75 0.33 9.92 0.50 9.49
3/18/82 0.58 0.17 10.25 0.00 8.69
3/22/82 0.63 0.29 n/a 0.13 8.66
3/24/82 0.67 0.46 10.46 0.25 8.72
3/30/82 0.50 0.13 11.21 0.00 9.27
4/7/82 n/a 0.13 12.38 0.00 7.65
4/16/82 0.83 0.33 12.92 0.50 7.91
4/21/82 n/a n/a n/a n/a 8.70
5/3/82 n/a n/a n/a n/a 11.00
5/14/82 2.29 2.00 14.50 1.83 12.13
5/18/82 2.58 2.21 14.50 2.21 12.42
6/4/82 3.58 3.83 14.50 3.33 13.00
6/14/82 4.00 3.58 14.92 3.75 15.42
1982-1983
7/8/82 6.17 9.29 14.67 5.50 17.12
11/5/82 12.17 12.15 14.50 8.67 24.75
11/19/82 10.87 9.83 14.67 8.08 10.46
11/26/82 n/a 11.75 14.50 n/a 20.42
12/3/82 3.46 2.63 14.88 6.42 11.08
12/23/82 0.50 1.17 n/a 1.00 n/a
1/19/83 0.92 0.58 14.04 n/a 12.04
1/24/83 0.67 0.33 14.00 0.08 9.84
1/28/83 0.63 0.33 14.50 0.00 8.83
2/4/83 n/a n/a n/a n/a 8.75
2/19/83 n/a n/a n/a n/a 8.13
3/3/83 0.42 0.42 18.00 -0.08 6.27
3/14/83 0.75 0.92 dry 0.42 10.58
3/21/83 0.83 1.17 n/a 0.33 10.25
3/28/83 0.92 1.67 n/a 0.67 9.33
4/5/83 n/a n/a n/a n/a 9.08
4/7/83 2.75 2.71 n/a 0.96 9.33
4/14/83 2.08 3.25 n/a 1.25 10.25
4/19/83 2.21 3.25 n/a 1.42 10.50
4/28/83 1.00 2.58 n/a 0.17 9.67
5/13/83 1.50 3.17 n/a 0.88 9.46
5/18/83 1.83 3.42 n/a 1.17 9.88
6/2/83 3.04 4.33 n/a 2.29 11.46
1983-1984
11/15/83 12.96 13.13 n/a dry 23.33
11/18/83 12.13 12.79 n/a dry 11.79
12/1/83 6.04 8.25 n/a 4.29 12.00
12/8/83 1.42 n/a n/a 1.42 11.00
12/15/83 2.00 n/a n/a 1.29 9.17
12/29/83 1.50 n/a n/a 1.25 n/a
1/24/84 2.17 4.67 dry 1.58 10.29
2/10/84 2.54 4.96 18.04 1.75 11.38
2/26/84 2.00 4.25 17.5 1.5 10.29
4/11/84 4.38 5.29 n/a 2.92 12.25
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