Section Env-Wr 403.03 - Additional Requirements Based on Hazard Classification(a) For the construction or reconstruction of a low hazard, significant hazard, or high hazard dam: (1) All final plans and design documents shall be stamped by a professional engineer, licensed in the State of New Hampshire, with a minimum of 5 years of engineering experience related to the design and construction of similar dam projects, as determined by the department after a review of the engineer's resume;(2) The project shall be inspected in accordance with Env-Wr 405; and(3) A construction inspection plan, prepared in accordance with Env-Wr 405.04, shall accompany the application for construction or reconstruction.(b) A design for construction of a new low hazard, significant hazard, or high hazard dam, with the exception of dams impounding liquid industrial, agricultural, or commercial wastes, or municipal sewage, shall be equipped with a pond drain.(c) A design for construction of a significant hazard or high hazard dam shall also include the following: (1) The results of a stability analysis of the structure for overturning, sliding, and slope failure, as applicable, including factors of safety, using the methods outlined in "Engineering Guidelines for Evaluation of Hydropower Projects" published by FERC, Chapter 3 dated 2002 and Chapter 4 dated 1991, available as noted in Appendix B;(2) The results of a seepage analysis;(3) The results of subsurface explorations, including, but not limited to borings and test pits; and(4) A draft emergency action plan (EAP), or if an EAP has already been approved, an updated EAP, in accordance with Env-Wr 500.(d) A design for reconstruction of a significant hazard or high hazard dam shall include the items identified in (c), above, if the department determines that the items are applicable based on the type of work to be done.N.H. Code Admin. R. Env-Wr 403.03
#1716, eff 2-20-81; ss by #2207, eff 12-13-82; ss by #2900, eff 11-7-84, EXPIRED 11-7-90
New. #5080, eff 2-22-91; rpld by #6462-B, eff 2-21-97
New. #8414, eff 8-20-05; ss by #10510, eff 1-22-14