# N.J. Admin. Code § C

Current through Register Vol. 54, No. 7, April 4, 2022

UNIFORM PLACEMENT OF PERCOLATION TESTS

Uniform Placement of Percolation Tests

N.J.A.C. 7:9A-6.1(e)7 of these standards requires that percolation tests be spaced uniformly within the area of the disposal field. Acceptable patterns or arrangements for percolation test placement depend upon the size and shape of the disposal field as outlined below. Patterns other than those provided below may be approved provided that it is determined by the Administrative Authority that the test results submitted are representative of the soil conditions throughout the entire area of the disposal field.

Definitions

The following words and terms shall have the following meanings when used within Appendix B of this chapter:

"Center" means the intersection of the two disposal field diagonals.

"Diagonal" means a line connecting opposite corners of the disposal field.

"Elongated disposal field" means a disposal field with a length/width ratio of 3.0-5.0.

"End" means one of the two shorter sides in a disposal field which has a length/width ratio not equal to 1.0.

"Length" means the longest dimension of the disposal field, or the distance between the ends of the disposal field.

"Long axis" means a line connecting the midpoints of the disposal field ends.

"Rectangular disposal field" means a disposal field with a length/width ratio of 1.5-3.0.

"Side" means one of the two longer sides of a disposal field which has a length/width ratio not equal to 1.0.

"Square disposal field" means a disposal field with a length/width ratio of 1.0-1.5.

"Very elongated disposal field" means a disposal field with a length/width ratio greater than 5.0.

"Width" means the shortest dimension of the disposal field, or the distance between the sides of the disposal field.

All Disposal Field Shapes

All Disposal Field Shapes

Field Shape Rectangular to Very Elongated (L/W [GREATER THAN] 1.5)

Field Shape Square to Rectangular (L/W = 1.0 - 3.0)

All Field Shapes

Field Shape Elongated to Very Elongated (L/W [GREATER THAN] 3.0)

Square Fields

Field Shape Square to Rectangular (L/W = 1.0 - 3.0)

All Field Shapes

Field Shape Elongated to Very Elongated (L/W [GREATER THAN] 3.0)

Uniform Placement of Percolation Tests--Figures

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### Notes

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