Figure: 30 TAC §330.63(e)(4)(B)
TABLE OF BORINGS
|
Size of Area in Acres |
Number of Borings |
Min. No. of Borings 30 Feet below the Elev. of Deepest Excavation |
|
5 or less |
2-4 |
2 |
|
5-10 |
4-6 |
3 |
|
10-20 |
6-10 |
5 |
|
20-50 |
10-15 |
7 |
|
50-100 |
15-20 |
7-12 |
|
100-150 |
20-23 |
12-13 |
|
150-200 |
23-26 |
13-15 |
|
200-250 |
26-29 |
15-16 |
|
250-300 |
29-32 |
16-17 |
|
300-350 |
32-35 |
17-18 |
|
350-400 |
35-38 |
18-20 |
|
400-450 |
38-42 |
20-21 |
|
450-500 |
42-44 |
21-22 |
|
500-550 |
44-47 |
22-24 |
|
550-600 |
47-50 |
24-26 |
|
More than 600 |
Determined in consultation | |
* The executive director may approve different boring depths if site-specific conditions justify variances.