(a) This part applies to any person who prepares biosolids that are placed on a surface disposal site, to the owner/operator of a surface disposal site, to biosolids placed on a surface disposal site, and to a surface disposal site.
(b) This part does not apply to biosolids stored on the land or to the land on which biosolids are stored. It also does not apply to biosolids that remain on the land for longer than two (2) years when the person who prepares the biosolids demonstrates that the land on which the biosolids remains is not an active biosolids unit. The demonstration shall include the following information, which shall be retained by the person who prepares the biosolids for the period that the biosolids remains on the land:
(c) This part does not apply to biosolids treated on the land or to the land on which biosolids are treated.
(d) Application of biosolids to the land for treatment and storage of biosolids are regulated under separate provisions of Chapter 11, Wyoming Water Quality Rules and Regulations.
020-15 Wyo. Code R. § 20