74 : 36 : 07 : 107 . Existing municipal solid waste landfill active and passive collection systems. The department must approve a collection system if it meets the following:

1. (1) An active collection system must:

   1. (a) Be designed to handle the maximum expected gas flow rate for the entire area of the landfill that warrants control over the intended use period of the gas control system equipment;
   2. (b) Collect gas from each area, cell, or group of cells in the landfill in which the initial solid waste has been placed for a period of five years or more if active or two years or more if closed or at final grade;
   3. (c) Collect gas at a sufficient extraction rate; and
   4. (d) Be designed to minimize off-site migration of subsurface gas;

2. (2) A passive collection system must:

   1. (a) Comply with the provisions specified in subsections (1)(a), (1)(b), and (1)(d) of this section; and
   2. (b) Be installed with liners on the bottom and all sides in all areas in which gas is to be collected. The liners must be installed as required under 40 C.F.R. § 258.40 (July 1, 2024).

Source: 46 SDR 64, effective November 25, 2019 ; 52 SDR 27, effective September 17, 2025 .

General Authority: SDCL 34A-1-6 , 34A-1-18 .

Law Implemented: SDCL 34A-1-18 .

Prior versions effective: 2019-11-25.