§ 1-6. Stormwater management plan; content of plan.

A.

The Stormwater Management Plan, required in section 1-4 of this Ordinance, must apply the stormwater management technical criteria set forth in sections 1-10 through 1-19 and 1-22 through 1-27 of this Ordinance to the entire site or common plan of development or sale where applicable, consider all sources of surface runoff and all sources of surface and groundwater flows converted to surface runoff. Individual lots in new residential, commercial or industrial developments shall not be considered separate land-disturbing activities. Approved stormwater management plans for residential, commercial or industrial subdivisions govern the individual parcels within that plan throughout the development life of the lots even with subsequent owners.

The Stormwater Management Plan shall include the following information:

1.

Information on the type and location of stormwater discharges; information on the features to which stormwater is being discharged including surface waters and the predevelopment and postdevelopment drainage areas;

2.

Contact information including the name, address, and telephone number of the owner, and the applicant if not the owner, and the GPIN and parcel number of the property or properties affected;

3.

A narrative that includes a description of current site conditions 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.

The type of facilities;

ii.

Location, including geographic coordinates expressed in U.S. Survey Feet and based on the Virginia State Plane Coordinate System, South Zone, NAD 1983/1993 (High Accuracy Reference Network) (HARN) or Latitude and Longitude;

iii.

Area treated, measured in square feet and acreage; and

iv.

The surface waters 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 sections 1-10 through 1-19 or 1-22 through 1-27 of this Ordinance;

8.

A map or maps of the site that depicts the topography of the site and includes:

i.

All contributing drainage areas;

ii.

Existing streams, ponds, culverts, ditches, wetlands, other water bodies, and floodplains;

iii.

Soil types, forest cover, and other vegetative areas;

iv.

Current land use including existing structures, roads, and locations of known utilities and easements;

v.

Sufficient information on adjoining parcels upstream to the watershed limits and adjoining parcels downstream contributing to the point of adequacy, to assess the impacts of stormwater from the site on these parcels;

vi.

The limits of clearing and grading, and the proposed drainage patterns on the site;

vii.

Proposed buildings, roads, parking areas, utilities, and stormwater management facilities;

viii.

Proposed land use with tabulation of the percentage of surface area to be adapted to various uses, including but not limited to planned locations of utilities, roads, and easements;

ix.

All Chesapeake Bay Preservation Area designations of Resource Protection Areas, including variable width buffers;

x.

All Southern Rivers Watershed buffers and nontidal wetlands, pursuant to Appendix G of the Virginia Beach City Code; and

xi.

Any other information reasonably necessary for an evaluation of the development activity.

B.

If an operator intends to meet the water quality or quantity requirements set forth in sections 1-10 through 1-19 and 1-22 through 1-27 of this Ordinance through the use of off-site compliance options, where applicable, then a letter of availability from the off-site provider must be included. Approved off-site options must achieve the necessary nutrient reductions prior to the commencement of the applicant's land-disturbing activity except as otherwise allowed by § 62.1-44.15:35 of the Code of Virginia.

C.

If an operator intends to meet the water quality and quantity requirements available in an existing off-site regional or locally shared stormwater management facility, pursuant to a previously approved plan, documentation shall be required indicating that the facility meets the quality and quantity technical criteria set forth in sections 1-10 through 1-19 and 1-22 through 1-27 of this Ordinance and that a Stormwater Management Facilities Maintenance Agreement acceptable to the City has been recorded and that all necessary easements are in place to access and utilize the Stormwater Management Facility.

D.

Elements of the stormwater management plans that include activities regulated under Chapter 4 (§ 54.1-400 et seq.) of Title 54.1 of the Code of Virginia shall be appropriately sealed and signed by a professional registered in the Commonwealth of Virginia pursuant to Article 1 (§ 54.1-400 et seq.) of Chapter 4 of Title 54.1 of the Code of Virginia.

E.

A maintenance agreement and adequate easements shall be executed and recorded to ensure responsibility for the maintenance of any stormwater management facilities constructed under the requirements of this ordinance, unless exempted from this requirement under section 1-28, and to ensure appropriate access to such facilities for maintenance, inspection and corrective action.

(Ord. No. 3337, 4-22-14, eff. 7-1-14; Ord. No. 3369, 9-16-14; Ord. No. 3618, 6-16-20)

(Ord. No. 3337, 4-22-14, eff. 7-1-14; Ord. No. 3369, 9-16-14; Ord. No. 3618, 6-16-20)