1. (a) To ensure that the conditions of § 20921 are met, the operator shall implement a gas monitoring and control program at the disposal site that satisfies the following requirements:

   1. (1) the gas monitoring network shall be designed by a registered civil engineer or a certified engineering geologist and shall ensure detection of the presence of landfill gas migrating beyond the disposal site permitted facility boundary and also into on-site structures; and

   2. (2) The monitoring network shall be designed to account for the following specific site characteristics and potential migration pathways or barriers, including, but not limited to:

      1. (A) local soil and rock conditions;
      2. (B) hydrogeological conditions at the disposal site;
      3. (C) the hydraulic conditions surrounding the disposal site;
      4. (D) locations of buildings and structures relative to the waste disposal area;
      5. (E) adjacent land use, and inhabitable structures within 1000 feet of the disposal site permitted facility boundary;
      6. (F) man-made pathways, such as underground construction; and
      7. (G) the nature and age of the waste and its potential to generate landfill gas.

Note: Authority cited: Sections 40502 and 45020, Public Resources Code. Reference: Sections 43201 and 43103, Public Resources Code; and Title 40, Code of Federal Regulations, Section 258.23.

History

1. New section filed 6-18-97; operative 7-18-97 (Register 97, No. 25).

2. Amendment of section heading, section and Note filed 8-21-2007; operative 9-20-2007 (Register 2007, No. 34).