"Non-metallic mineral processing plant" means any combination of equipment used to grind or crush any non-metallic mineral, such as stone, sand, gravel, clay, rock salt, or vermiculite. The term includes all equipment used in conjunction with the grinding or crushing equipment to dry, mix, convey, size, or blend the processed material.
N.H. Admin. Code § Env-A 2802.04
#9793, eff 10-1-10 (formerly Env-A 101.166)