20051117 Ver 1_Staff Report_20050922

Project Num: 20051117 Owner: Wilcox, Lang
Inspection Date: 09/22/2005 Inspection Type: Staff Report Reason for Visit: Routine
Inspection Summary:
Nature of site: Wooded, semi-rural. Surrounding area consists of low density residential with some agricultural use.
Area: 132 acres
Impacts: 1,318 linear feet of stream fill for construction of three dams and two road crossings and 6,714 linear feet of impact due to
flooding in order to create three lakes.
Avoidance and Minimization: Inadequate. There appear to be opportunities for the applicant to reduce the amount of impacts and
still meet project requirements. The stream to be impacted drains ~90 acres and is a tributary to the Yadkin River (WS-IV). Stream
quality ranges from poor to good. The NCWRC recommends that impacts to the smaller headwater tributaries be avoided. It may
be possible for the applicant to eliminate one or both of the smaller upstream impoundments and still provide adequate sediment
control through good land-use practices. The applicant's proposal to utilize one of the upstream impoundments as a stormwater
management facility is questionable. This facility would be located within a perennial reach. NCWRC also recommends a minimum
flow release with maintenance of 7Q10 flow at all times.
Mitigation: Compensatory mitigation is required for this project. Applicant is offering mitigation for fill and flooding through the NCEEP.
Applicant is also offering to preserve 22,000 linear feet of on-site stream channel through establishment of a conservation easement.
Buffer Impacts: Although the on-site stream is an unnamed tributary to the Yadkin River at a point where the Yadkin is classified
WS-IV, the stream is mapped as intermittent on the current USGS topo. No local government studies have been conducted on this
tributary with regard to the applicability of buffers. Therefore this stream is not subject to the buffer requirements of 15A NCAC 02B
.0216.
stormwater Management: Currently, the stream in question appears to transport a significant amount of sediment and has reaches
of bank erosion and instability. Given the proposal to impound a significant amount of this stream and the overall scope of proposed
development, WSRO believes that stormwater management should be required on this site.
401 Authorization: WSRO does not object to the authorization of the proposed impacts under an Individual Certififcation if the following
additional conditions are met:
1) Impacts to the headwater reaches of the stream should be reduced or avoided altogether.
2) A flow release from the lower lake which assures a 7Q10 stream-flow should be maintained at all times.
3) Littoral shelves should be provided along the shoreline of the lakes, where practicable, in order to provide stability and habitat.
Banks and shelves should be planted with native woody species.
4) Conservation and preservation areas should be established and permanently preserved as common buffer areas along streams,
wetlands, and lake shoreline. Buffers should consist of undisturbed forest areas.
5) stormwater management should be provided for the entire project. stormwater treatment devices should not be placed in
perennial stream reaches.
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Staff Report
Project Num: 20051117
Name: Lissara Development
County: Forsyth
Location: 7567 Shallowford Rd, Clemmons, N(
Latitude: +36°06'25"
SW Plan Location:
Owner: Wilcox, Lang
Contact Person: Wilcox, Lang
Inspection Date: 09/22/2005
Reason for Inspection: Routine
On-Site Representative(s):
Primary Inspector: Daryl Lamb
Secondary Inspector(s):
Question Areas:
Site Visit
Version: 1 Status: Received
Project Type: Residential Subdivision
Region: Winston-Salem
Longitude: -80°26'57"
Title:
Phone: [phone] Ext.
Entry Time: 02:00 PM Exit Time: 03:15 PM
Inspection Type: Staff Report
Phone:
Page: 1

Project Num: 20051117 Owner: Wilcox, Lang
Inspection Date: 09/22/2005 Inspection Type: Staff Report Reason for Visit: Routine
Site Visit
Do impacts described in the application differ those seen in the field? Yes
~ No NA
~ ~ NE
~
If yes, please describe differences:
Are the Intermittent/Perennial calls different in the application? ~ ~ ~ ~
If yes, please describe differences, and how mitigation ratios are affected:
Are there additional impacts not described in the application? ~ ~ ~ ~
If yes, please describe and quantify:
Were the impacts in place prior to the application for the 401 Certification? ~ ~ ~ ~
Additional conditions recommended for the Certification:
Recommended project modifications:
Is this a modification request to an existing Certification? ~ ~ ~ ~
Are there additional stromwater conditions that should be required due to the following classifications: ~ ~ ~ ~
303(d)list, Class WS, NSW, ORW, HOW
Describe:
Is this a subdivision or otherwise part of a larger project? ~ ~ ~ ~
If yes, what phase is this? Single phase subdivision
Are there prior impacts from prior phases? ~ ~ ~ ~
If yes, what are the cumulative imacts for this project?
Possible secondary impacts noted:
Comment:
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