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Virginia Administrative Code
Title 9. Environment
Agency 25. State Water Control Board
Chapter 870. Virginia Stormwater Management Program (VSMP) Regulation
6/1/2023

9VAC25-870-92. Comprehensive stormwater management plans.

A locality's VSMP authority may develop comprehensive stormwater management plans to be approved by the department that meet the water quality objectives, quantity objectives, or both of this chapter:

1. Such plans shall ensure that offsite reductions equal to or greater than those that would be required on each contributing site are achieved within the same HUC or within another locally designated watershed. Pertaining to water quantity objectives, the plan may provide for implementation of a combination of channel improvement, stormwater detention, or other measures that are satisfactory to the locality's VSMP authority to prevent downstream erosion and flooding.

2. If the land use assumptions upon which the plan was based change or if any other amendments are deemed necessary by the locality's VSMP authority, such authority shall provide plan amendments to the department for review and approval.

3. During the plan's implementation, the locality's VSMP authority shall document nutrient reductions accredited to the BMPs specified in the plan.

4. State and federal agencies may develop comprehensive stormwater management plans, and may participate in locality-developed comprehensive stormwater management plans where practicable and permitted by the locality's VSMP authority.

Statutory Authority

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

Historical Notes

Former 4VAC50-60-92 derived from Virginia Register Volume 27, Issue 26, eff. September 13, 2011; amended, Virginia Register Volume 29, Issue 4, eff. November 21, 2012; renumbered, Virginia Register Volume 30, Issue 2, eff. October 23, 2013.

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