Recommended number of soil boring, pits, and permeameter tests for bioretention design
Recommended number of soil borings, pits and permeameter tests for bioretention design.
Link to this table
| Surface area of stormwater control measure (BMP)(ft2) | Borings | Pits | Permeameter tests |
|---|---|---|---|
| < 1000 | 1 | 1 | 5 |
| 1000 to 5000 | 2 | 2 | 10 |
| 5000 to 10000 | 3 | 3 | 15 |
| >10000 | 41 | 41 | 202 |
1an additional soil boring or pit should be completed for each additional 2,500 ft2 above 12,500 ft2
2an additional five permeameter tests should be completed for each additional 5,000 ft2 above 15,000 ft2