N.J. Admin. Code § 7:26E-4.7

Current through Register Vol. 56, No. 19, October 7, 2024

Section 7:26E-4.7 - Remedial investigation of historic fill material

(a) The person responsible for conducting the remediation shall conduct a remedial investigation of historic fill material by:

1. Determining the horizontal and vertical extent of the historic fill material to the boundary of the property being investigated; and

2. Characterizing the fill material by identifying the physical characteristics of the historic fill material.

(b) The person responsible for conducting the remediation shall establish the extent of ground water contamination from the historic fill material as follows:

1. For sites where the historic fill material extends beyond the property boundary, submit a proposed ground water classification exception area prepared pursuant to 7:26C-7.3, in the remedial investigation report prepared pursuant to 7:26E-4.9, using the footprint of the property as the boundaries of the ground water classification exception area; or

2. For sites where the extent of historic fill material is contained within the property boundaries, either:

i. Conduct a remedial investigation of the ground water pursuant to 7:26E-4.3 to identify the extent of the contaminant plume and submit a proposed ground water classification exception area prepared pursuant to 7:26C-7.3, in the remedial investigation report prepared pursuant to 7:26E-4.9, identifying the known extent of the ground water contamination associated with the historic fill; or

ii. Submit a proposed ground water classification exception area prepared pursuant to 7:26C-7.3, in the remedial investigation report prepared pursuant to 7:26E-4.9, using the footprint of the property as the boundaries of the ground water classification exception area.

(c) The person responsible for conducting the remediation shall conduct a remedial investigation of each area of concern located within or situated upon the historic fill material independently of the remedial investigation of the historic fill material itself.

(d) If at any time during the remedial investigation of historic fill material the person responsible for conducting the remediation encounters any material that does not meet the definition of historic fill material because it includes material which is substantially chromate chemical production waste or any other chemical production waste or waste from processing of metal or mineral ores, residues, slag, tailings or is otherwise not historic fill material, then the person responsible for conducting the remediation shall conduct a remedial investigation of each such area as a separate area of concern.

N.J. Admin. Code § 7:26E-4.7