Code of Maryland Regulations (Last Updated: April 6, 2021) |
Title 26. Department of Environment |
Part 2. |
Subtitle 10. OIL POLLUTION AND TANK MANAGEMENT |
Chapter 26.10.03. UST Systems: Design, Construction, Installation, Notification and Inspection |
Sec. 26.10.03.03. Spill and Overfill Prevention Equipment
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A. Except as provided in §B of this regulation, owners and operators shall use the following spill and overfill prevention equipment:
(1) Spill prevention equipment that shall prevent release of a regulated substance into the environment when the transfer hose is detached from the fill pipe by use of a spill catchment basin:
(a) That has a minimum capacity of 5 gallons; and
(b) Is tested in a manner approved by the Department:
(i) Within 30 days of installation;
(ii) Upon repair;
(iii) Within 180 days of January 26, 2005; and
(iv) Annually thereafter;
(2) Overfill prevention equipment that shall:
(a) Automatically shut off flow into the tank when the tank is 95 percent full,
(b) Alert the transfer operator when the tank is 90 percent full by restricting the flow into the tank or triggering a high level alarm, or
(c) Alert the operator with an alarm 1 minute before overfilling; and
(3) Containment sumps that shall:
(a) Prevent release of a regulated substance into the environment;
(b) Be used for all connections of piping from the tank to the dispenser; and
(c) Be tested by a method approved by the Department:
(i) Within 30 days of installation:
(ii) Upon repair;
(iii) Within 1 year of January 26, 2005; and
(iv) Every 5 years thereafter.
B. Owners and operators are not required to use the spill and overfill prevention equipment specified in this regulation if:
(1) Alternative equipment or method is used that is determined by the Department to be no less protective of human health and the environment; or
(2) Not more than 25 gallons of a regulated substance is transferred at one time to the UST system.
C. New, replacement, or upgraded UST systems which receive used oil shall be equipped with spill catchment basins with a minimum capacity of 5 gallons.
D. On July 1, 1998, new or complete replacement UST systems, which utilize vapor recovery, shall be equipped to prevent the release of product from the vapor recovery fitting by:
(1) Installing at the stage one fitting a spill catchment basin with a minimum capacity of 5 gallons; or
(2) Utilizing a method that the owner and operator can demonstrate to the satisfaction of the Department to be as effective as a spill catchment basin.