Page 137 - _ 180314 Special Yucaipa GSA Packet
P. 137
Notes
Incremental
Infiltration
Vertical
Rate
Water
Ponded
Level
Flowmeter
Hydrant
Incremental
cubic feet feet/day feet vertical feet Just started, dry basin ~28' x 30' (~5' deep) 0.0 Wetted base = ~2/3 7.86 1.0 8.7 7,791 Wetted base = ~3/4 8.22 1.7 9.0 8,076 Wetted base = ~3/4 8.15 1.6 11.2 10,046 7.91 1.8 4.8 4,347 7.95 2.3 10.0 8,993 8.23 2.5 9.3 8,366 Wheel‐measured wetted area: 29' x 31' 8.33 2.6 8.3 7,426 8.60 2.4 7.7 6,886
Hydrant Flowmeter Total vertical feet 8.7 17.6 28.8 33.6 43.6 52.9 61.2 68.8 76.8 86.4 94.6 103.1 112.8 Investigation Site A 8 7 Time since test started (days)
cubic feet 7,791 15,867 25,913 30,260 39,253 47,619 55,045 61,931 69,122 77,774 85,163 92,816 101,512 6 5
Appendix C. Example Infiltration Test Field Data Sheet
4
619.31
550.45
302.60
392.53
476.19
928.16
1015.12
851.63
691.22
777.74
77.91
0.00
259.13
158.67
Hydrant Flowmeter Reading 100x cubic feet 3 2 1
Time Incremental days 0.97 1.01 1.38 0.59 1.19 1.10 0.98 0.91 0.96 1.11 0.95 0.99 1.12 10.0 9.0 8.0 7.0 6.0 5.0 4.0 3.0 2.0 1.0 0.0 0
Test Basin Dimensions
ft ft ft 2 ft Infiltration Rate (feet/day)
30.0 30.0 900 5 0.97 1.98 3.36 3.95 5.14 6.25 7.23 8.14 9.10 10.21 11.16 12.15 13.27
Time Elapsed days
Length: Width: Area: Depth:
Date and Time 6/6/2016 11:08 6/7/2016 10:30 6/8/2016 10:40 6/9/2016 19:50 6/10/2016 9:53 6/11/2016 14:33 6/12/2016 17:04 6/13/2016 16:33 6/14/2016 14:27 6/15/2016 13:28 6/16/2016 16:11 6/17/2016 14:58 6/18/2016 14:37 6/19/2016 17:34