7 Del. Admin. Code § 7102-63.0

Current through Register Vol. 28, No. 4, October 1, 2024

Section 7102-63.0 - Plugging and abandoning Class I and Major Class V wells

63.1 Requirements for Class I and Major Class V wells.

63.1.1 Prior to abandoning Class I and Major Class V wells, the well shall be plugged with Portland cement in a manner which will not allow the movement of fluids either into or between underground sources of drinking water.

63.1.2 Placement of Portland cement shall conform to the State of Delaware Regulations Governing the Construction and Use of Wells, or an alternative method approved by the Department, which will reliably provide a comparable level of protection to underground sources of drinking water.

63.1.3 All wells shall be filled with the appropriate sealing or fill materials starting from the bottom of the well upward to the ground surface, except as noted in State of Delaware Regulations Governing the Construction and Use of Wells, or unless otherwise approved by the Department.

63.1.4 The Department may prescribe aquifer cleanup and monitoring where the Department deems it necessary and feasible to insure adequate protection of USDWs.

63.2 Requirements for Major Class V wells.

63.2.1 Prior to abandoning a Major Class V well, the owner or operator shall close the well in a manner that prevents the movement of fluid containing any contaminant into an underground source of drinking water, if the presence of that contaminant may cause a violation of any primary drinking water regulation under Delaware regulations or may otherwise adversely affect the health of any person or persons. Closure requirements for motor vehicle waste disposal wells and large-capacity cesspools are stated in Section 53.0 and Section 54.0.

63.2.2 The owner or operator shall dispose of or otherwise manage any soil, gravel, sludge, liquids, or other materials removed from or adjacent to the well in accordance with all applicable Federal, State, and local regulations and requirements.

63.2.3 All wells are to be properly abandoned in accordance with the State of Delaware Regulations Governing the Design, Installation and Operation of On-Site Wastewater Treatment and Disposal Systems and the Regulations Governing the Construction and Use of Wells, where applicable.

7 Del. Admin. Code § 7102-63.0

21 DE Reg. 978 (6/1/2018) (Final)