Section Env-Wt 519.05 - Design Requirements for Ponds In addition to meeting applicable design requirements established in Env-Wt 300, the following design requirements shall apply to a pond construction project:
(a) Wildlife ponds shall be designed to support wildlife and meet the criteria in Env-Wt 519.06;(b) Fire ponds shall be designed to provide fire protection and include the following: (1) A letter from the municipal fire chief stating the justification for the fire pond;(2) The location of the dry hydrant;(3) Access for dry hydrant connection intake use and maintenance;(4) The location and access point for pond maintenance; and(5) How the design will meet the fire protection goals;(c) Agriculture ponds shall be designed to provide water for livestock, irrigate crops, or raise fish for commercial sale and include the following:(1) How the design meets the criteria for minimum impact agriculture projects in Env-Wt 522.06(a); and(2) Whether the pond is located within a wet meadow wetland;(d) Fish ponds shall be designed to: (1) Support native fish populations;(2) Contain deep areas with a minimum of 8 to 10 feet in at least 25% to 50% of the pond area;(3) For ponds supporting cold water species such as trout, maintain cool water temperatures year round and may require more than 10 feet of water depth; and(4) Comply with NHF&G stocking rules;(e) Residential, commercial, and industrial ponds shall be designed based on proposed purpose and be reviewed holistically with the criteria in Env-Wt 524;(f) Pond inlets and outlets shall be sited and stabilized to prevent adverse impacts to adjacent wetlands and surface waters;(g) Impoundments shall be designed to avoid impacts to surface elevation; and(h) All ponds shall be designed to protect water quality in accordance with Env-Wt 307.N.H. Code Admin. R. Env-Wt 519.05
Derived from Volume XXXIX Number 28, Filed July 11, 2019, Proposed by #12805, Effective 12/15/2019, Expires 12/15/2029.Amended by Volume XL Number 46, Filed November 12, 2020, Proposed by #13124, Effective 10/23/2020, Expires 10/23/2030.