"Bottom ash" means the ash residue remaining after combustion of solid waste, fossil fuel, wood, sludge or other materials in an incinerator that is discharged through and from the grates, combustor or stoker.
N.H. Admin. Code § Env-Sw 102.22
(See Revision Note at chapter heading for Env-Sw 100) #8460-B, eff 10-28-05