NR 667.0191(3)(a)3. 3. Soil sulfides level.

NR 667.0191(3)(a)4. 4. Soil resistivity.

NR 667.0191(3)(a)5. 5. Structure to soil potential.

NR 667.0191(3)(a)6. 6. Existence of stray electric current.

NR 667.0191(3)(a)7. 7. Existing corrosion-protection measures (for example, coating, cathodic protection).

NR 667.0191(3)(b) (b) The type and degree of external corrosion protection needed to ensure the integrity of the tank system during the use of the tank system or component, consisting of one or more of the following:

NR 667.0191(3)(b)1. 1. Corrosion-resistant materials of construction such as special alloys and fiberglass reinforced plastic.

NR 667.0191(3)(b)2. 2. Corrosion-resistant coating (such as epoxy and fiberglass) with cathodic protection (for example, impressed current or sacrificial anodes).

NR 667.0191(3)(b)3. 3. Electrical isolation devices such as insulating joints and flanges.

NR 667.0191(4) (4) Design considerations to ensure that:

NR 667.0191(4)(a) (a) Tank foundations will maintain the load of a full tank.

NR 667.0191(4)(b) (b) Tank systems will be anchored to prevent flotation or dislodgement where the tank system is placed in a saturated zone, or is located within a seismic fault zone subject to the standards of s. NR 667.0018.

NR 667.0191(4)(c) (c) Tank systems will withstand the effects of frost heave.

NR 667.0191 History History: CR 16-007: cr. Register July 2017 No. 739, eff. 8-1-17; correction in (4) (b) made under ss. 13.92 (4) (b) 7. and 35.17, Stats., Register July 2017 No. 739.

NR 667.0192 NR 667.0192 What handling and inspection procedures shall I follow during installation of new tank systems?

NR 667.0192(1) (1) Ensure that you follow proper handling procedures to prevent damage to a new tank system during installation. Before placing a new tank system or component in use, an independent, qualified installation inspector or an independent, qualified, registered professional engineer, either of whom is trained and experienced in the proper installation of tank systems or components shall inspect the system for the presence of any of the following items:

NR 667.0192(1)(a) (a) Weld breaks.

NR 667.0192(1)(b) (b) Punctures.

NR 667.0192(1)(c) (c) Scrapes of protective coatings.

NR 667.0192(1)(d) (d) Cracks.

NR 667.0192(1)(e) (e) Corrosion.

NR 667.0192(1)(f) (f) Other structural damage or inadequate construction or installation.

NR 667.0192(2) (2) Remedy all discrepancies before the tank system is placed in use.

NR 667.0192 History History: CR 16-007: cr. Register July 2017 No. 739, eff. 8-1-17.

NR 667.0193 NR 667.0193 What testing shall I do? Test all new tanks and ancillary equipment for tightness before you place them in use. If you find a tank system that is not tight, perform all repairs necessary to remedy the leak or leaks in the system before you cover, enclose or place the tank system into use.

NR 667.0193 History History: CR 16-007: cr. Register July 2017 No. 739, eff. 8-1-17.

NR 667.0194 NR 667.0194 What installation requirements shall I follow?

NR 667.0194(1) (1) Support and protect ancillary equipment against physical damage and excessive stress due to settlement, vibration, expansion or contraction.

NR 667.0194(2) (2) Provide the type and degree of corrosion protection recommended by an independent corrosion expert, based on the information provided under s. NR 667.0191 (3), to ensure the integrity of the tank system during use of the tank system. An independent corrosion expert shall supervise the installation of a corrosion protection system that is field fabricated to ensure proper installation.