Current through Register Vol. 41, No. 3, September 23, 2024
A. A
stormwater management plan shall be developed and submitted to the VESMP
authority or the department as the VSMP authority. The stormwater management
plan shall be implemented as approved or modified by the VESMP authority or
department and shall be developed in accordance with the following:
1. A stormwater management plan for a
land-disturbing activity shall apply the stormwater management technical
criteria set forth in this part to the entire land-disturbing activity.
Individual lots in new residential, commercial, or industrial developments,
including those developed under subsequent owners, shall not be considered
separate land-disturbing activities.
2. A stormwater management plan shall
consider all sources of surface runoff and all sources of subsurface and
groundwater flows converted to surface runoff.
B. A complete stormwater management plan
shall include the following elements:
1.
Information on the type of and location of stormwater discharges, information
on the features to which stormwater is being discharged including surface
waters or karst features if present, and predevelopment and post-development
drainage areas;
2. Contact
information including the name, address, telephone number, and email address of
the owner and the tax reference number and parcel number of the property or
properties affected;
3. A narrative
that includes a description of current site conditions and final site
conditions or if allowed by the VESMP authority or department, the information
provided and documented during the review process that addresses the current
and final site conditions;
4. A
general description of the proposed stormwater management facilities and the
mechanism through which the facilities will be operated and maintained after
construction is complete;
5.
Information on the proposed stormwater management facilities, including (i)
detailed narrative on the conversion to a long-term stormwater management
facility if the facility was used as a temporary ESC measure; (ii) the type of
facilities; (iii) location, including geographic coordinates; (iv) acres
treated; and (v) the surface waters or karst features into which the facility
will discharge;
6. Hydrologic and
hydraulic computations, including runoff characteristics;
7. Documentation and calculations verifying
compliance with the water quality and quantity requirements of this
chapter;
8. A map of the site that
depicts the topography of the site and includes:
a. All contributing drainage areas;
b. Existing streams, ponds, culverts,
ditches, wetlands, other water bodies, and floodplains;
c. Soil types, geologic formations if karst
features are present in the area, forest cover, and other vegetative
areas;
d. Current land use
including existing structures, roads, and locations of known utilities and
easements;
e. Sufficient
information on adjoining parcels to assess the impacts of stormwater from the
site on these parcels;
f. The
limits of clearing and grading, and the proposed drainage patterns on the
site;
g. Proposed buildings, roads,
parking areas, utilities, and stormwater management facilities; and
h. Proposed land use with tabulation of the
percentage of surface area to be adapted to various uses, including planned
locations of utilities, roads, and easements;
9. If an operator intends to meet the
requirements established in
9VAC25-875-580 or
9VAC25-875-600 through the use of
offsite compliance options, where applicable, then a letter of availability
from the offsite provider must be included; and
10. If payment of a fee is required with the
stormwater management plan submission to the VESMP authority or the department,
the fee in accordance with Part VIII (9VAC25-875-1290 et seq.) of this
chapter must have been submitted.
C. All final plan elements, specifications,
or calculations of the stormwater management plans whose preparation requires a
license under Chapter 4 (§
54.1-400 et seq.) or 22 (§
54.1- 2200 et seq.) of Title 54.1 of the Code of Virginia shall be
appropriately signed and sealed by a professional who is licensed to engage in
practice in the Commonwealth of Virginia. Nothing in this subsection shall
authorize any person to engage in practice outside that person's area of
professional competence.
Statutory Authority: §
62.1-44.15:28 of the Code of
Virginia; Chapters 68 and 758 of the 2016 Acts of
Assembly.
