Secondary and Cumulative Impacts Master Management Plan - 2014

Article 11 Environmental Standards 11-30 Swift Creek Water Supply Watershed

(A) The inner 50 feet (“Zone 1”) of required 100 -foot buffers along perennial streams that is not covered by a conservation easement must be labeled on the plat as a “reserved conservation parcel” and restricted from future use or conveyance as a development lot. Reserved conservation parcels must be dedicated to a property owners’ association or recognized land conservation agency. (B) Reserved conservation parcels and remnants are exempt from the lot area and width standards of the underlying zoning district and from UDO standards requiring frontage on a public or private road, provided that a pedestrian access easement is provided to the parcel, with a minimum width of 10 feet. (C) Under the reserve parcel option, development lots may not be platted within the inner 50 feet of required 100-foot buffers along perennial streams. 11-25 Density and Impervious Surface Calculations 11-25-1 The land area included within conservation easements and reserved conservation parcels will be included in calculating the allowable density for a cluster or open space subdivision. 11-25-2 The land area included within conservation easements and reserved conservation parcels will be included in calculating the allowable impervious surface coverage within a subdivision. Sections 11-26 through 11-29 are reserved for future use Part 3 Special Watershed Areas 11-30 Swift Creek Water Supply Watershed 11-30-1 Development in the Swift Creek Water Supply Watershed is subject to the requirements of the Swift Creek Land Management Plan in addition to other applicable standards of this ordinance. See also Article 9 of this ordinance. 11-30-2 All residential and commercial properties require a preliminary site plan prepared by a licensed professional land surveyor, landscape architect, architect, or engineer. 11-30-3 An as-built plan prepared by a licensed professional land surveyor is required for all lots before a Certificate of Occupancy may be issued. 11-30-4 In addition to the standards of the underlying zoning districts, the following standards apply to all land within the Swift Creek Water Supply Watershed: Standards Critical Area Non-Critical Area Rural Urban Rural Suburban – New Urban - New Existing Urban Limited Res* Limited Res* Res Nonres Res Nonres Res Nonres Res & Nonres Maximum Density (DU/acre) 0.5 2.5 1 n/a 2.5 n/a 6 east of Holly

n/a Res. Controlled by underlying zoning; Nonres. n/a

Springs Rd.; may exceed 6 west of Holly Springs Rd.

Max. Impervious Surface Ratio (%) [8] Impoundments and Maintenance [5]

6

6 [1]

12 [2] 12 [2]

12 [3]

12 [3]

12 [4]

12 [4] 12 [4]

Allowed

[9]

Required if over 12% impervious, public or private maintained

Municipal Sewer [6] Prohibited [7]

Required if over 6%

Prohibited [7]

Required if over 12% impervious

Wake County Unified Development Code 11-10