Wisconsin Administrative Code › Department of Natural Resources › NR 600-699 - Environmental Protection - Hazardous Waste Management › Chapter NR 664 - Hazardous Waste Treatment, Storage And Disposal Facility Standards › Subchapter J - Tank Systems › Section NR 664.0192 - Design and installation of new tank systems or components

Current through June 24, 2024
(1) Owners or
				  operators of new tank systems or components shall obtain and submit to the
				  department, at time of submittal of the feasibility and plan of operation
				  report, a written assessment, reviewed and certified by a qualified
				  professional engineer, in accordance with s.
				  NR
				  670.011(4), attesting that the tank
				  system has sufficient structural integrity and is acceptable for the storing
				  and treating of hazardous waste. The assessment shall show that the foundation,
				  structural support, seams, connections and pressure controls (if applicable)
				  are adequately designed and that the tank system has sufficient structural
				  strength, compatibility with the wastes to be stored or treated and corrosion
				  protection to ensure that it will not collapse, rupture or fail. This
				  assessment, which will be used by the department to review and approve or
				  disapprove the acceptability of the tank system design, shall include, at a
				  minimum, all of the following information:
(a) Design standards according to which the
				  tanks and ancillary equipment are constructed.
(b) Hazardous characteristics of the wastes
				  to be handled.
(c) For new tank
				  systems or components in which the external shell of a metal tank or any
				  external metal component of the tank system will be in contact with the soil or
				  with water, a determination by a corrosion expert of all of the following:
1. Factors affecting the potential for
				  corrosion, including but not limited to, all of the following:
a. Soil moisture content.
b. Soil pH.
c. Soil sulfides level.
d. Soil resistivity.
e. Structure to soil potential.
f. Influence of nearby underground metal
				  structures (e.g., piping).
g.
				  Existence of stray electric current.
h. Existing corrosion-protection measures
				  (e.g., coating, cathodic protection).
2. The type and degree of external corrosion
				  protection that are 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:
a. Corrosion-resistant materials
				  of construction such as special alloys, fiberglass reinforced plastic,
				  etc.
b. Corrosion-resistant coating
				  (such as epoxy, fiberglass, etc.) with cathodic protection (e.g., impressed
				  current or sacrificial anodes).
c.
				  Electrical isolation devices such as insulating joints, flanges, etc.
Note:
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
					 providing corrosion protection for tank systems.
(d) For underground tank system
				  components that are likely to be adversely affected by vehicular traffic, a
				  determination of design or operational measures that will protect the tank
				  system against potential damage.
(e) Design considerations to ensure all of
				  the following:
1. Tank foundations will
				  maintain the load of a full tank.
2. Tank systems will be anchored to prevent
				  flotation or dislodgment where the tank system is placed in a saturated
				  zone.
3. Tank systems will
				  withstand the effects of frost heave.