HomeMy WebLinkAboutSDP201300005 Review Comments Minor Amendment 2013-05-07�pF A
vt�r�1Q
COUNTY OF ALBEMARLE
Department of Community Development
401 McIntire Road, Room 227
Charlottesville, Virginia 22902 -4596
Phone (434) 296 -5832 Fax (434) 972 -4126
Project: Hollymead Substation Expansion- Minor Amendment to SDP - 1984 -60
Plan preparer: Geosyntec Consultants [fax 804 - 767 -2182]
Owner or rep.: Virginia Electric & Power CO
Plan received date: 23 Apr 2013
Date of comments: 06 May 2013
Reviewer: Michelle Roberge
A. Site Development Plan (SDP201300005)
1. [Comment] It appears there is one critical slope located south of site that will be be slightly
disturbed during the construction of the additional gravel area. It also appears that the runoff for
the entire site will be routed into a stormsewer with the outflow concentrated near the critical slope
area. The applicant requesting the waiver shall file a written request explaining how the waiver, if
granted, would address the rapid and/or large -scale movement of soil and rock, excessive
stormwater run -off, siltation of natural and man -made bodies of water, loss of aesthetic resources,
and, in the event of septic system failure, a greater travel distance of septic effluent (collectively
referred to as the "public health, safety, and welfare factors ") that might otherwise result from the
disturbance of critical slopes. [Section 4.2.5]
[Revisionl] Comment addressed.
B. WPO Plan (E &S application has not been submitted. Engineering will review after the
application has been submitted.)
2. Please show the drainage easements within the property boundary.
[Revisionl] Comment not addressed. Per 18- 32.7.4, all proposed drainage system require a
20' wide drainage easement. Please provide for all proposed drainage structures.
3. The property drains into a lake managed by the Forest Lakes Community. Per Section 17.314 and
section 17.315, water quality and quantity will need to be addressed. A WPO application can be
filled out for the stormwater management and erosion and sediment control review. The load
reduction calculation spreadsheet can be found on our website,
www.albemarle.org/deptforms.asp ?department =cdd. The file name is Plan Review BMP Removal
Rate Computations.
[Revisionl] Comment not addressed. Albemarle County's ordinances requires a WPO plan
for E &S. Please submit application and fees.
4. Please show the the VDOT Flared End Section ES -1 for the outlet pipe.
5. The area between the proposed grate inlets will start ponding. Please revise to prevent ponding.
6. Please provide the detail of the 1' wide wall located south of site.
7. On sheets 5 and 9 for post development, please do not show the grate inlet and pipe to be
removed.
8. Please revise E2 to be a 24" RCP outlet pipe.
9. The site will eventually drain into (2) — 12" DIP before entering the pond. Please replace pipes
with a 24" RCP. This will require permission from the Forest Lakes Community Association, Inc.
Please provide.
Sincerely,
Michelle Roberge
County Engineer
File: El_ rp,esc,swm,fsp_GEB_template.doc
Engineering Review Comments
Page 2 of 2