HomeMy WebLinkAboutWPO201000046 Review Comments Stormwater Management Plan 2010-09-01OF AL
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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:
Plan preparer:
Owner /Applicant:
Plan received date:
Date of comments:
Reviewer:
Town & Country Shopping Center — WP0201000046
William Moore, PE
[wmoore @balzer.cc]
Tap Investments, LLC
26 July 2010
1 September 2010
John P. Diez — Engineering Technician
A. Stormwater Management Plan
1. Please provide a Letter of Intent from the owner of the pond allowing the use of the stormwater
management facility for water quality and quantity.
2. Please provide acreage and hydrologic coefficient for the drainage areas of the proposed site.
3. Please provide construction easements from all adjacent owners that are affected by construction
(TMP 78 -11 and TMP -9B).
A. Erosion and Sediment Control Plan
4. Please provide a Letter of Intent from the owner of the pond allowing the use of the facility as an
erosion and sediment control perimeter control facility. This can be stated in the Letter of Intent for
the SWM facility.
5. Engineering is a bit confused by the phasing of the E &S plan. On the Phase 1 line, silt fence
appears to be installed that will not have water running into it in either phase. In phase 1, all water
will be concentrated at the northern corner of the property, which will not be permitted. A
diversion should be provided from the CIP to the entrance to TMP 78 -9B. In the corner of the site
where fill is being added, please provide a fill diversion that is to direct water to the CIP. If a letter
from the pond is received to allow use as a sediment basin, engineering review will allow this
culvert to be protected by silt fence per 3.08 -1. If this agreement is not received, the CIP will need
to be designed as a trap per Plate 3.08 -2.
With regards to the phasing in the construction sequence, it appears that in order to establish the
stone base for the building in Step D, significant grading operations will be required, which is
referenced much later in Step G. Please simplify the plan by installing the CIP, diversion (fill
diversions after grading begins), ROW diversion, and pipe 2 first.
6. Construction entrances are required to drain to a sediment trap or basin per VESCH. In the current
proposed location of the construction entrance, runoff will be directed across an existing parking
lot currently in use and into storm inlets that would require inlet protection. This is not an
acceptable place for construction traffic to be releasing sediment from tires. The construction
entrance must be moved to the western corner of the site where sediment can be diverted into the
storm sewer and taken to the sediment basin more immediately.
7. Please include the proposed grading in your limits of disturbance.
Albemarle County Community Development
Engineering Review Comments
Page 2 of 2
8. Please provide a safety fence around the site (or at least in front of the property and at the top of
the retaining wall construction in the southern corner of the site)
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