Minnesota Administrative Rules

4715.0610 SPECIAL WASTES.

For special wastes, the following materials may be used:

A.

The following corrosion resistant materials are acceptable for chemical waste and vent systems: stainless steel 2C(b), chemically resistant glass pipe 5H, high silicon content cast iron 1G, and chemically resistant plastic pipe 6S, 6T, 6U, or 6V. The installation shall be in accordance with manufacturer's installation instructions. If 6S, 6T, 6U, or 6V is used, horizontal piping may not exceed 35 feet in total length; and stacks may not exceed 35 feet in total height unless an approved expansion and contraction joint is installed at intervals not to exceed 35 feet. Underground installation of chemically resistant plastic pipe shall comply with ASTM D2321.

B.

Pressure wastes or nonpressure wastes which are completely exposed or accessible, and which discharge indirectly to the drainage system may be of any materials in part 4715.0420, subpart 3, with due regard to the type of liquid being wasted.

Statutory Authority:

MS s 16B.59 to 16B.75; 326.37 to 326.45; 326B.101 to 326B.194; 326B.43 to 326B.49

History:

9 SR 1557; 23 SR 686; 28 SR 146; L 2007 c 140 art 4 s 61; art 6 s 15; art 13 s 4; L 2008 c 337 s 64; 33 SR 2042

Published Electronically:

May 14, 2012