ATCP 93.585(3)(3) Fire hazard response. The owner or operator shall identify, mitigate and monitor fire and explosion hazards, such as the presence of free product or vapors in structures.

ATCP 93.585(4)(4) Prevention of further release. The owner or operator shall take action to prevent further release of the regulated substance to the environment, including all of the following:

ATCP 93.585(4)(a)(a) Removing and safely storing as much of the regulated substance from the tank system as necessary to prevent further release to the environment.

ATCP 93.585(4)(b)(b) Taking steps to prevent migration of the substance, including managing any contaminated soils or water in accordance with ch. 292, Stats.

ATCP 93.585(5)(a)(a) No later than 21 business days after reporting a release under this section, the owner or operator shall submit documentation to the department of natural resources demonstrating compliance with subs. (1) (b) and (4), and demonstrating that the corrective and mitigation actions which were taken have accomplished or will accomplish all of the following:

ATCP 93.585(5)(a)2.2. Minimization of the harmful effects from the release to the air, lands or waters of Wisconsin.

ATCP 93.585(5)(b)(b) Any repairs or changes to a tank system that are made because of a release reported under this section shall be reported to the department within 21 business days of completing the repair or change.

ATCP 93.600ATCP 93.600 Applicability. This subchapter applies to all new and existing motor fuel dispensing facilities, except where specified otherwise.

ATCP 93.605(1)(a)(a) General. Periodic and annual inspections and maintenance shall be conducted in accordance with PEI RP500 and RP900, except that PEI RP 900, Section 6, Daily UST Inspection Checklist items may be performed at least monthly rather than daily.

ATCP 93.605 NoteNote: In addition to the PEI RP500 and RP900 maintenance requirements, further criteria on maintaining USTs is available in standard STI R-111, Storage Tank Maintenance, from the Steel Tank Institute, at www.steeltank.com. This standard is applied to USTs under ss. ATCP 93.230 (14) and (15) and addresses topics such as how to keep the fuel clean, the effects of water and contaminants on fuel, how to monitor various types of tanks and fuels, how to clean tanks, and criteria to follow when switching fuels.

ATCP 93.605(1)(b)(b) Electrical continuity. Dispensers for motor fuel that is a Class I or Class II liquid shall be tested for electrical continuity in accordance with PEI RP400 when installing or replacing any hanging hardware assembly or component or when the hose breakaway becomes disconnected.

ATCP 93.605(1)(c)(c) Records. Records shall be maintained for underground tanks in accordance with s. ATCP 93.500 (9), and for aboveground tanks in accordance with s. ATCP 93.400 (11).

ATCP 93.605(1)(d)1.1. Nozzles used for dispensing motor fuel shall be listed and shall be automatic closing.

ATCP 93.605 NoteNote: Latch-open nozzles may be prohibited in some of the circumstances addressed by this chapter.

ATCP 93.605(1)(d)2.a.a. Nozzle spouts used for spark-ignition fuels shall have an outside diameter of 0.807 to 0.840 inches.

ATCP 93.605(1)(d)2.b.b. Nozzle spouts used for compression-ignition fuels for passenger cars and light-duty trucks shall have an outside diameter of 0.929 to 0.9375 inches.

ATCP 93.605(1)(d)2.c.c. Nozzle spouts used for compression-ignition fuels for heavy-duty trucks and off-road heavy equipment shall have an outside diameter of either 1.122 to 1.250 inches or 0.929 to 0.9375 inches.

ATCP 93.605(1)(d)3.3. Changing from one to another of the fuel types in subd. 2. shall include changing the nozzle spout to the size specified in subd. 2. for the new fuel.