20040954 Ver 3_Triage Comments_20071220

Use this form instead of writing inside the folder
Triage Comment Sheet
DW # C~~~ D~5 v3
Q
Triaged By: .
Reviewer 1 ~~~ Date: l f 3~ ~~
Reviewer 2 Date:
Reviewer 3 Date:
Issue Project (Reviewer 1) ssue Project (Reviewer 2)
~ Issue with conditions (Reviewer 1)
j] Issue with conditions (Reviewer 2)
~ More Information (Reviewer 1)
~ Return Application (Reviewer 1}
CI Send to Regions (Reviewer I)
~ More Information (Reviewer 2)
~ Return Application (R.eviewer 2)
~ Send to Regions (Reviewer 2)
S:1Triage FormslTriagc Issue Sheet.doc
PLEASE PRINT CLEARLY

07-1948 Brightwood Trails Subdivision
AML comments
December 20, 2007
The riprap level spreaders that are proposed at the outlets of wet detention basins
3, 4, 5 and 6 do not meet the current state standards for diffuse flow. Please
redesign these level spreaders with concrete lips per Chapter 8 of the NC Division
of Water Quality Stormwater Best Management Practices Manual. In your
resubmittal, please provide one completed Level Spreader Supplement Form for
each proposed level spreader (make sure to include the Required Items Checklist
with all required items attached.) The BMP Manual and Level Spreader
Supplement Form are available at: http://h2o.enr.state.nc.us/sw`bmp forms.htm.
2. If any of the filter strips down slope of wet detention basins 3, 4, 5 or 6 are not
appropriate for level spreaders, then please provide an alternative BMP that
removes a minimum of 30 percent of total nitrogen. Please design the BMP per
the requirements of the BMP Manual and provide a BMP Supplement Form for
each proposed BMP. See the web site above for the BMP Manual and the BMP
Supplement Forms.
3. Please show contour lines down slope of the detention basin 2 scour hole so that
the DWQ can confirm that it has been correctly sited per Chapter 8 of the BMP
Manual.