Section Env-Wt 307.15 - Use of Heavy Equipment in Wetlands In addition to all other applicable conditions in this part or in Env-Wt 500 or Env-Wt 600, the following conditions shall apply to the use of heavy equipment in wetlands:
(a) Heavy equipment shall not be operated in any jurisdictional area unless specifically authorized in the permit for the project;(b) Mobile heavy equipment working in wetlands shall not be stored, maintained, or repaired in wetlands, except that repairing or refueling in a wetland is allowed if equipment cannot practicably be removed and secondary containment is provided;(c) Where construction requires the operation of heavy equipment in wetlands, the equipment shall: (1) Either have low ground pressure, namely less than 4 psi, or not be located directly on wetland soils and vegetation; or(2) Be placed on timber or swamp mats that are adequate to support the equipment in such a way as to minimize disturbance of wetland soil and vegetation;(d) Timber and swamp mats shall be: (1) In good condition to ensure proper installation, use, and removal; and(2) Thoroughly cleaned before re-use; and(e) Swamp mats shall: (1) Be placed in the wetland from the upland or from equipment positioned on swamp mats if working within a wetland;(2) Be installed, used, and removed so as to minimize impacts to wetland areas; and(3) Be installed with adequate erosion and sediment controls at approaches to the mats to promote a smooth transition to, and minimize sediment tracking onto, the mats.N.H. Code Admin. R. Env-Wt 307.15
Derived from Volume XXXIX Number 28, Filed July 11, 2019, Proposed by #12803, Effective 12/15/2019, Expires 12/15/2029.