20171548 Ver 1_Response to Non-Compliance Notice_20191126

DIRECTION 36.06046°N ACCURACY 16 ft
244 deg(T) 079.48683°W DATUM WG584
Diamond Sack Grand Oaks 2019-10-09
Upstream... 13:56:32-04:00
DIRECTION 36.06031"N ACCURACY 16 ft
223 deg(T) 079.48714°W DATUMWGS34
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Diamond Back Grand Oaks 2019-10-09
Outlet... 14:01:12-04:00
DIRECTION
49 deg(T)
36.06678°N
079.48821°W
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ACCURACY 1.63 mi
DATUM WG584
Diamond Sack Grand Oaks 2019-10-09
internal baffle loca_. 13:59:41-04:00
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Diamond Back Grand Oaks 2019-10-09
internal baffle iota... 14:00:15-04:00
DIRECTION 36.06032°N ACCURACY 16 ft DIRECTION 36.06060°N ACCURACY 16 ft
67 deg(T) 079.48717'W DATUM WG584 219 deg(T) 079.48706'W DATUM WG584
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Diamond Back Grand Oaks 2019-10-09 Diamond Back Grand Oaks 2019-10-09
Outlet... 14:01:05-04:00 Green Ashe for sil... 14:06:38-04:00

Strickland, Bev
From: Perry Isner <[e-mail]>
Sent: Tuesday, November 26, 2019 4:01 PM
To: Homewood, Sue
Cc: [e-mail]; Nolan Franz; Chris Huysman
Subject: [External] SAW-2017-02386, Huffman Point Non-compliance
Attachments: H uffma n Pt_p hotos. pdf
Follow Up Flag: Follow up
Flag Status: Completed
External email. Do not click links or open attachments unless you verify. Send all suspicious email as an attachment to
[e-mail]
Good afternoon Sue and David. This email is in regard to the non-compliance for the project referenced
above. Please see below for a brief conceptual outline of the proposed remedy, as well as some representative
photographs. We have confirmed that this approach is satisfactory with the project engineer (cc'ed).
1. Leave upstream as it is; accumulation should occur over time as a result of activities below:
2. Install brick baffles at each drop inlet location (upstream side of each junction spanning the width of the flat
spot). From inlet, the first one should be 1-3 inches above the invert. The second one should cause 1-3 inches of
back water on the first baffle.
3. Install baffle on splash pad with an elevation sufficient to cause 1-3 inches of back water.
4. Establish a channel through the rip -rap pad with a modest slope that is field adjusted to the sill- see next item.
5. Install a notched log sill at the end of the rip -rap pad with a 3-8 inch drop which should cause 1 -3 inch
backwater at splash pad. Nearby tree has been marked for this use- photo included- (24" Green Ash).
Don't hesitate to let me know if you have any questions about the provided information.
Best regards,
Perry Isner
Wetlands & Waters, inc.
328 East Broad St. Suite D
Statesville, NC 28677
704.773.4239
1

perryisner(a)-wetlands-waters.com
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