HomeMy WebLinkAboutWPO201900006 Correspondence 2021-04-06 Matthew Wentland
From: Sarah Friend Gerke <sfriend@woolley-eng.com>
Sent: Tuesday, April 6, 2021 11:57 AM
To: Matthew Wentland
Cc: 'Eric Woolley'
Subject: 1850 Covenant School
Attachments: 210406_VRRM SPREADSHEET.pdf
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Hello Matt,
Please find attached to this email the revised VRRM spreadsheet for the Covenant School project. The attached
spreadsheet includes only the portion of the completed project not flowing through the biofilter.
Pre-construction conditions are as follows:
• The total drainage area totals 5,013 sf(0.12 ac)
• The total impervious surface within the drainage area totals 566 sf(0.01ac)
Post-construction conditions are as follows:
• The total drainage area totals 5,013 sf(0.12 ac)
• The total impervious surface within the drainage area totals 1,731 sf(0.04 ac)
The attached VRRM spreadsheet calculates that the project requires a TP nutrient credit purchase of 0.06 lb/yr. Please
let us know when we are authorized to proceed on the next step for purchasing nutrient credits for this project.
Thanks,
Sarah Friend Gerke, EIT I WOOLLEY ENGINEERING
210 5th St NE Charlottesville, VA 22902 I (434) 973-0045
sfriendla'�woolley-eng.com
www.woolley-eng.com
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