"Liner" means a barrier that restricts the downward or lateral flow of the overlying waste and its constituents, or leachate. Liners can be either natural, for instance clay, or man-made, for instance plastic.
N.H. Admin. Code § Env-Sw 103.39
(See Revision Note at chapter heading for Env-Sw 100) #8460-B, eff 10-28-05