N.H. Code Admin. R. Env app D
RSA 485-A:17:
II. The department shall charge a fee for each review of plans, including project inspections, required under this section. The fee shall be based on the extent of contiguous area to be disturbed. Except for RSA 483-B:9, the fee for plans encompassing an area of at least 100,000 square feet but less than 200,000 square feet shall be $1,250. For the purposes of RSA 483-B:9, the fee for plans encompassing an area of at least 50,000 square feet but less than 200,000 square feet shall be $1,250. An additional fee of $500 shall be assessed for each additional area of up to 100,000 square feet to be disturbed. No permit shall be issued by the department until the fee required by this paragraph is paid. All fees required under this paragraph shall be paid when plans are submitted for review and shall be deposited in the terrain alteration fund established in paragraph II-a.
II-d. All permits issued, except for projects covered by paragraph II-e, pursuant to this section shall be valid for a period of 5 years. Requests for extensions of such permits may be made to the department. The department shall grant an extension of up to 5 additional years, provided the applicant demonstrates all of the following:
(a) The permit for which extension is sought has not expired prior to the date on which a written extension request from the permittee is received by the department.
(b) The permit for which extension is sought has not been revoked or suspended without reinstatement.
(c) Extension would not violate a condition of statute or rule.
(d) Surface water quality will continue to be protected as under the original permit.
(e) The project is proceeding towards completion in accordance with plans and other documentation referenced by the permit.
(f) If applicable, any inspection reports have been completed and submitted as required by the permit.
(g) The permit has not previously been extended, unless the subdivision plat or site plan associated with the permit has been deemed substantially complete by the governing municipal planning board in accordance with RSA 674:39, II, in which case subsequent extensions of the permit are allowed.
II-e. A permit issued under this section that is associated with the ongoing excavation or mining of materials from the earth shall not expire for the life of the project identified in the permit application, provided that the permit holder submits a written update of the project's status every 5 years from the date of the permit issuance using a form obtained from the department as specified in department rules.
V. Trail construction operations for the purposes of modifying existing biking and walking trails shall be exempt from the provisions of this section. Such operations shall be considered in compliance with this section and shall be issued a general permit by rule provided such operations are implemented by a non-profit organization, municipality, or government entity, are limited to a disturbed area no more than 12 feet in width, and are in accordance with procedures prescribed in the Best Management Practices for Erosion Control During Trail Maintenance and Construction, published by the department of resources and economic development, bureau of trails in 2004.
N.H. Code Admin. R. Env app D