La. Admin. Code tit. 33 § V-3323

Current through Register Vol. 50, No. 9, September 20, 2024

Section V-3323 - Monitoring Well Abandonment and Sealing of Bore Holes

An owner or operator shall provide for the sealing of any vertical migration path resulting from exploratory boring and/or monitoring programs.

A. Any boring made in evaluating a site, monitoring, or other purpose related to the hazardous waste site shall be completely filled with cement-bentonite, or other equivalent technology approved by the administrative authority. The hole shall be left open only as necessary to obtain core samples, water samples and establish the initial water level. If subsequent samples or water level readings are to be taken, the hole shall be completed as a well with suitable casing and sealing of the annulus between the hole and the casing.

B. When a monitoring well is to be abandoned, the owner or operator shall obtain approval for such abandonment. A request shall be made to the administrative authority, including the following information:

1. name and address of the facility;

2. well identification and exact location;

3. well construction data, including:

a. well depth and intermediate stratification;

b. screen length and material;

c. casing size and material;

d. sealing of the annulus; and

e. other pertinent data;

4. reason for abandonment; and

5. proposed abandonment method, including sealing method and material proposed.

C. The administrative authority may accept the proposal or require modification as necessary to protect groundwater.

D. For any monitoring well which goes through or into a recognized potable water aquifer, and any well which the administrative authority feels could directly impact such aquifer, the owner or operator shall additionally complete and submit an abandonment report as required by the Water Resources Section of the Office of Public Works in the Department of Transportation and Development, or its successor agency.

La. Admin. Code tit. 33, § V-3323

Promulgated by the Department of Environmental Quality, Office of Solid and Hazardous Waste, Hazardous Waste Division, LR 10:200 (March 1984), amended LR 18:1256 (November 1992).

AUTHORITY NOTE: Promulgated in accordance with R.S. 30:2180 et seq.