N.M. Code R. § 20.9.2.14
WAIVERS FOR SMALL MUNICIPAL LANDFILLS.
A. Owners or operators of new or existing municipal landfills that dispose of less than 20 tons of solid waste daily, based on an annual average, and do not accept any special waste other than regulated asbestos, may apply in the permit application or for a specific approval for a waiver from the design requirements of 20.9.4.13 - 20.9.4.15 NMAC and ground water monitoring requirements in 20.9.9.8 - 20.9.9.11 NMAC. To obtain a waiver, the owner or operator must demonstrate that:
(1) the groundwater protection standards for constituents listed or referenced in 20.9.9.20 NMAC will not be exceeded in the uppermost aquifer, and, for an existing landfill, there is no groundwater contamination attributable to the landfill;
(2) the community has no practicable waste management alternative; and
(3) the landfill is located in an area that receives, on average, 25 inches or less annual precipitation.
[20.9.2.14 NMAC - Rp, 20 NMAC 9.1.I.110, 08/02/07]