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
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