NCS000402_29_Compass Pointe Center 1-15-14

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Williams, carmen, and kingi, ine
Engineering • Architecture • Land Surveying
Stormwater Review for Compass Pointe Center
Engineer: Aden Stoltzfus, P.E.
Reviewer: Joshua S. Johnson, P.E.
Date: January 15, 2014
Stormwater Review Notes:
1. The Submittal needs the following:
a. Stormwater Narrative.
b. City of Mebane O&M Agreement (Attached).
c. Landscape/Planting Plan (with approved plants from BMP Manual).
2. What is downstream of the proposed WQB? It is not clear if any structures are downstream or what
the existing off site drainage patterns are. This can be shown with an exhibit or with County
Topo/GIS information.
3. Use Rational Method for Peak Flows.
4. Fence type needs to meet City standards (attached).
5. Water Quality Orifice needs anti -clogging detail (downturned elbow?).
6. Is adequate access to the forebay available?
7. All future upstream development completed after the proposed improvements (that is tributary to
pond) will need onsite erosion control to prevent sedimentation of pond. Pond will need to be
completed within 6 months of CO of proposed building.
8. Show maintenance easement on WQB.
9. Provide a copy of Erosion Control approval from NC Land Quality.
10. Complete the attached Jordan -Falls Lake Nutrient Loading Calculator for the project. The Tool can
be found at http://portal.ncdenr.or_ web/jordanlake/implementation-guidance-archive. Please note
that compliance with the Tool is not required but submitting a copy of the Tool is required.
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