Virginia Administrative Code › Title 9 - ENVIRONMENT › Agency 25 - STATE WATER CONTROL BOARD › Chapter 875 - VIRGINIA EROSION AND STORMWATER MANAGEMENT REGULATION › Part V - Criteria and Requirements for Regulated Land-Disturbing Activities › Article 1 - Administrative Criteria › Section 9VAC25-875-500 - Stormwater pollution prevention plan requirements

Current through Register Vol. 40, No. 24, July 15, 2024
A. A stormwater
					 pollution prevention plan shall include an approved erosion and sediment
					 control plan, an approved stormwater management plan, a pollution prevention
					 plan for regulated land-disturbing activities, and a description of any
					 additional control measures necessary to address a TMDL pursuant to subsection
					 E of this section.
B. An erosion
					 and sediment control plan consistent with the requirements of
					 9VAC25-875-550 must be designed and
					 implemented during construction activities. Prior to land disturbance, this
					 plan must be approved by the VESCP authority, VESMP authority, or the
					 department.
C. A stormwater
					 management plan consistent with the requirements of
					 9VAC25-875-510 must be designed and
					 implemented during construction activities. Prior to land disturbance, this
					 plan must be approved by the VESMP authority or the department.
D. A pollution prevention plan that
					 identifies potential sources of pollutants that may reasonably be expected to
					 affect the quality of stormwater discharges from the construction site and
					 describe control measures that will be used to minimize pollutants in
					 stormwater discharges from the construction site must be developed before land
					 disturbance commences.
E. In
					 addition to the requirements of subsections A through D of this section, if a
					 specific wasteload allocation for a pollutant has been established in an
					 approved TMDL and is assigned to stormwater discharges from a construction
					 activity, additional control measures must be identified and implemented by the
					 operator so that discharges are consistent with the assumptions and
					 requirements of the wasteload allocation.
F. The stormwater pollution prevention plan
					 (SWPPP) must address the following requirements as specified in
					 40 CFR
					 450.21, to the extent otherwise required by
					 state law or regulations and any applicable requirements of a permit:
1. Control stormwater volume and velocity
					 within the site to minimize soil erosion;
2. Control stormwater discharges, including
					 both peak flow rates and total stormwater volume, to minimize erosion at
					 outlets and to minimize downstream channel and stream bank erosion;
3. Minimize the amount of soil exposed during
					 construction activity;
4. Minimize
					 the disturbance of steep slopes;
5.
					 Minimize sediment discharges from the site. The design, installation, and
					 maintenance of erosion and sediment controls must address factors such as the
					 amount, frequency, intensity, and duration of precipitation, the nature of
					 resulting stormwater runoff, and soil characteristics, including the range of
					 soil particle sizes expected to be present on the site;
6. Provide and maintain natural buffers
					 around surface waters, direct stormwater to vegetated areas to increase
					 sediment removal, and maximize stormwater infiltration, unless
					 infeasible;
7. Minimize soil
					 compaction and, unless infeasible, preserve topsoil;
8. Stabilization of disturbed areas must, at
					 a minimum, be initiated immediately whenever any clearing, grading, excavating,
					 or other earth disturbing activities have permanently ceased on any portion of
					 the site, or temporarily ceased on any portion of the site and will not resume
					 for a period exceeding 14 calendar days. Stabilization must be completed within
					 a period of time determined by the VESMP authority or the department as the
					 VSMP authority. In arid, semi-arid, and drought-stricken areas where initiating
					 vegetative stabilization measures immediately is infeasible, alternative
					 stabilization measures must be employed as specified by the VESMP authority or
					 department; and
9. Utilize outlet
					 structures that withdraw water from the surface, unless infeasible, when
					 discharging from basins and impoundments.