20091345 Ver 1_Triage Comments_20100506

Use this form instead of writing inside the folder
Triage Comment Sheet
DWQ#
Triaged By:
3 YS
w r_
Reviewer 1 WW 4
Reviewer 2
Date: y o
Date:
Reviewer 3 Date:
? Issue Project (Reviewer 1) ? Issue Project (Reviewer 2)
Issue with conditions (Reviewer 1)
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? Issue with conditions (Reviewer 2)
? More Information (Reviewer 1) ? More Information (Reviewer 2)
? Return Application (Reviewer 1) ? Return Application (Reviewer 2)
? Send to Regions (Reviewer 1)
? Send to Regions (Reviewer 2)
SATriage FormsWriage Issue Sheet.doc
PLEASE PRINT CLEARLY
09-1345 Granville Medical Center
AML Comments
May 6, 2010
RETURN.
In the Request for More Information letter that the DWQ sent to you on March 4, 2010, we requested
that you provide a completed Supplement Form for each proposed BMP. The letter stated: "Please be
sure to include the Required Items Checklist with ALL required items."
The following required items were omitted from your submittal that was received by the DWQ on April
1, 2010:
1. The depiction of the flow splitting device and the boundaries of the drainage easement on the
plans.
2. The supporting calculations.
3. The soils report does not include a boring that was taken within the proposed footprint of the
sand filter.
4. The Operation and Maintenance Agreements are not signed and notarized.
5. The storm drainage system is not depicted in a clear enough manner to verify the size of the
drainage area.
Based on the information submitted, the DWQ notes the following serious technical issues with the
stormwater management plan that is proposed:
1. A level spreader may not be installed upslope of an area with a 24% slope. A level spreader is
not needed at the outlet of the sand filter. It appears that the designer may have been using an
outdated version of the BMP Manual.
2. The area of the sand filter shown on the plans does not match the area claimed on the Sand
Filter Supplement Form. The DWQ will not approve a sand filter with such unusual geometer.
3. The sand filter must be equipped with a flow spitting device.
4. The sand filter detail that has been cut and pasted from the DWQ BMP Manual is out of date.
Also, the detail for a closed sand filter should not be included in the submittal for an open sand
filter.
5. Specifications for the sand filter media must be provided.