Project #Date 6/8/2021
Project Name
Project Address
Test No:IT-4 Total Depth (in.)96 Test Size (in)8
Depth To Water >50'Soil Classification SM Est Invert Depth (in)84 Screen Top (in)60
Reading Elasped
Time(min.)
Incremental Time
(min.)
Initial Depth To
Water(in.)
Final Depth To
Water(in.)
Incremental Fall of
Water(in.)
Unfactored
Incremental
Percolation Rate
(in/hr)
Start 0 0.00 60.00 ----
1 20.00 20.00 60.00 75.00 15.00 45.00
2 40.00 20.00 60.00 77.00 17.00 51.00
3 60.00 20.00 60.00 75.00 15.00 45.00
4 80.00 20.00 60.00 74.00 14.00 42.00
5 100.00 20.00 60.00 77.00 17.00 51.00
6 120.00 20.00 60.00 76.50 16.50 49.50
7 130.00 10.00 60.00 68.50 8.50 51.00
8 140.00 10.00 60.00 69.00 9.00 54.00
9 150.00 10.00 60.00 68.00 8.00 48.00
10 160.00 10.00 60.00 68.00 8.00 48.00
11 170.00 10.00 60.00 69.00 9.00 54.00
12 180.00 10.00 60.00 68.50 8.50 51.00
13 190.00 10.00 60.00 68.75 8.75 52.50
14 200.00 10.00 60.00 68.00 8.00 48.00
51.00 12.0
4.25 Avg. Unfactored Infiltration Rate (in/hr)
Recommended Reduction Factor (RFt*RFv*RFs)
Factored Infiltration Rate in Inches per Hour (in/hr)
RESULTS OF INFILTRATION TESTS - BORING PERCOLATION TEST 11221022
Proposed Retail
17617 Bellflower Boulevard, Bellflower, CA
0.0 20.0
40.0 60.0
80.0 0 30 60 90 120 150 180 210
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Time (minutes)
IT-4