HomeMy WebLinkAboutWPO201300064 Review Comments Stormwater Management Plan 2013-10-24�RGICn4'
COUNTY OF ALBEMARLE
Department of Community Development
401 McIntire Road
Charlottesville, Virginia 22902
WPO Plan Review
Project: Three Notch'd Center Auto Laundry
Number: WP0201300064
Date Received: 10 Oct 2013
Date of Review: 24 Oct 2013
Reviewer: Michelle Roberge
This is an abbreviated review comment notice. County engineering staff is available every Thursday
afternoon to discuss details of review. To schedule, please call your reviewer for an appointment.
Erosion & Sediment Control:
(Code Chapter 17, Article II)
Y
N
Adequate
g Not Adequate
X State standards followed, and Design Standards Manual notes and details
X Adequate limits and perimeter measures out of work areas
X All stages protected adequately
Adequate channels
- Relocate construction entrance.
-Show TS symbol and stockpile area with silt fence.
-Show E &S measure along southern boundary for final phase.
- Diversion dikes need positive grade to outlet. Address sharp bend for
DD. Show positive grade or provide SCC.
Stormwater Management:
(Code Chapter 17, Article III)
Y N
Adequate
X Not Adequate
Enough capture and treatment for on -site areas
Enough detention storage for on -site areas
Sealed hydrologic and hydraulic computations provided
-All 1.71 acres of impervious area does not appear to be treated by
filterra. Please clarify.
-The method for modeling basin and outlet is not the 24 hour storm. It
appears a larger volume of detention is needed. I recommend raising
the spillway and top of embankment.
- Include stormsewer calcs, profiles, stormsewer DA's with this plan.
- Invert in and out are flipped for both structures 2A1 and 2131 (sheet
10 of site plan submittal)
- Update storm calcs.
Mitigation:
(Code Chapter 17, Article III)
n/a Adequate
Not Adequate
Y N
n/a Buffers and disturbed areas adequately shown
n/a Adequate plantings at 2:1, or other mitigation provided
This review attempts to encompass the larger compliance questions. County staff does not assume
responsibility for any calculation or plan details, and cannot cover the intricacies of every plan submitted.
Each plan and calculation must have a professional seal and signature to assume these responsibilities.
This plan
Approved (please see attached Approval Fact Sheet)
X Not Approved
is