Section 160. Technical criteria and requirements for state projects

Part IV. Technical Criteria and State Permit Application Requirements for State Projects

A. This part specifies technical criteria and administrative procedures for all state projects.

B. Stormwater management state permit applications prepared for state projects shall comply with the technical criteria outlined in Part II (9VAC25-870-40 et seq.) of this chapter and, to the largest extent practicable, any locality's VSMP authority's technical requirements adopted pursuant to the Act. It shall be the responsibility of the state agency to demonstrate that the locality's VSMP authority's technical requirements are not practicable for the project under consideration.

C. The department may establish criteria for selecting either the site or a planning area on which to apply the water quality criteria.

D. As a minimum, a stormwater management state permit application shall contain the following:

1. The location and the design of the proposed stormwater management facilities.

2. Overall site plan with pre-developed and post-developed condition drainage area maps.

3. Comprehensive hydrologic and hydraulic computations of the pre-development and post-development runoff conditions for the required design storms, considered individually.

4. Calculations verifying compliance with the water quality requirements.

5. A description of the requirements for maintenance of the stormwater management facilities and a recommended schedule of inspection and maintenance.

6. The identification of a person or persons who will be responsible for maintenance.

7. All stormwater management and erosion and sediment control plans associated with a state permit application shall be appropriately sealed and signed by a professional in adherence to all minimum standards and requirements pertaining to the practice of that profession in accordance with Chapter 4 (§ 54.1-400 et seq.) of Title 54.1 of the Code of Virginia and attendant regulations.

Historical Notes

Former 4VAC50-60-160 derived from Volume 21, Issue 03, eff. January 29, 2005; amended, Virginia Register Volume 29, Issue 04, eff. November 21, 2012; amended and renumbered, Virginia Register Volume 30, Issue 02, eff. October 23, 2013.

Statutory Authority

§§ 62.1-44.15:25 and 62.1-44.15:28 of the Code of Virginia.