NR 664.0195(3)(b)(b) The construction materials and the area immediately surrounding the externally accessible portion of the tank system, including the secondary containment system (for example, dikes) to detect erosion or signs of releases of hazardous waste (for example, wet spots, dead vegetation).

NR 664.0195(4)(4) Owners or operators of tank systems that either use leak detection systems to alert facility personnel to leaks, or implement established workplace practices to ensure leaks are promptly identified, shall inspect at least weekly those areas described in sub. (3) (a) and (b). Use of the alternate inspection schedule shall be documented in the facility’s operating record. This documentation shall include a description of the established workplace practices at the facility.

NR 664.0195(5)(5) Ancillary equipment that is not provided with secondary containment, as described in s. NR 664.0193 (6) (a) to (d), shall be inspected at least once each operating day.

NR 664.0195(6)(6) The owner or operator shall inspect cathodic protection systems, if present, according to, at a minimum, all of the following requirements to ensure that they are functioning properly:

NR 664.0195(6)(a)(a) The proper operation of the cathodic protection system shall be confirmed within 6 months after initial installation and annually thereafter.

NR 664.0195(6)(b)(b) All sources of impressed current shall be inspected or tested, or both, as appropriate, at least bimonthly (that is, every other month).

NR 664.0195 NoteNote: The practices described in the National Association of Corrosion Engineers (NACE) standard, “Recommended Practice (RP-02-85)—Control of External Corrosion on Metallic Buried, Partially Buried, or Submerged Liquid Storage Systems” and the American Petroleum Institute (API) Publication 1632, “Cathodic Protection of Underground Petroleum Storage Tanks and Piping Systems,” may be used, where applicable, as guidelines in maintaining and inspecting cathodic protection systems.

NR 664.0195(7)(7) The owner or operator shall document in the operating record of the facility an inspection of those items in subs. (1) to (3).

NR 664.0195 HistoryHistory: CR 05-032: cr. Register July 2006 No. 607, eff. 8-1-06; CR 16-007: r. and recr. (2) to (4), cr. (5) to (7) Register July 2017 No. 739, eff. 8-1-17.

NR 664.0196NR 664.0196 Response to leaks or spills and disposition of leaking or unfit-for-use tank systems. A tank system or secondary containment system from which there has been a leak or spill, or which is unfit for use, shall be removed from service immediately, and the owner or operator shall satisfy the following requirements:

NR 664.0196(1)(1) Cessation of use; prevent flow or addition of wastes. The owner or operator shall immediately stop the flow of hazardous waste into the tank system or secondary containment system and inspect the system to determine the cause of the release.

NR 664.0196(2)(a)(a) If the release was from the tank system, the owner or operator shall, within 24 hours after detection of the leak or, if the owner or operator demonstrates that it is not possible, at the earliest practicable time, remove as much of the waste as is necessary to prevent further release of hazardous waste to the environment and to allow inspection and repair of the tank system to be performed.

NR 664.0196(2)(b)(b) If the material released was to a secondary containment system, all released materials shall be removed within 24 hours or in as timely a manner as is possible to prevent harm to human health and the environment.

NR 664.0196(3)(3) Containment of visible releases to the environment. The owner or operator shall immediately conduct a visual inspection of the release and, based upon that inspection, do all of the following:

NR 664.0196(3)(b)(b) Remove, and properly dispose of, any visible contamination of the soil or surface water.

NR 664.0196(4)(a)(a) Any release to the environment, except as provided in par. (b), shall be reported to the department within 24 hours of its detection. If the release has been reported pursuant to ch. NR 706, that report will satisfy this requirement.

NR 664.0196(4)(b)(b) A leak or spill of hazardous waste is exempted from the requirements of this subsection if it is all of the following:

NR 664.0196(4)(c)(c) Within 30 days of detection of a release to the environment, a report containing all of the following information shall be submitted to the department:

NR 664.0196(4)(c)2.2. Characteristics of the surrounding soil (soil composition, geology, hydrogeology, climate).

NR 664.0196(4)(c)3.3. Results of any monitoring or sampling conducted in connection with the release (if available). If sampling or monitoring data relating to the release are not available within 30 days, these data shall be submitted to the department as soon as they become available.