20131070 Ver 2_More Info Received_20150713 (38)

Strickland, Bev
From: Devane, Boyd
Sent: Monday, July 13, 2015 2:58 PM
To: Strickland, Bev
Subject: Please file this in Elk Creek # 13 -1070 v2
Attachments: PageSmear.pdf
From: Devane, Boyd
Sent: Monday, July 13, 2015 1:41 PM
To: 'davidf.ramsey'
Cc: Angelo Accetturo; Fox, Tim; Davidson, Landon; Price, Zan (George)
Subject: RE: Questions about June 23rd submittal - Elk Creek #
The smudge was very strange to us. You sent three, stapled copies of the four -page letter and only the first page of
each letter was stained and they were all identical stains (see attached copy). They all appeared to be signed
electronically. Please sign all future submittals by hand. Thanks. Thanks for correcting me on the email address. I
generally return responses via the address from which the information was received. I will try to remember to always
use your Verizon address.
From: davidf.ramsey rmai Ito: davidf. ra msev(cbverizon. netl
Sent: Monday, July 13, 2015 9:19 AM
To: Devane, Boyd
Cc: Angelo Accetturo; Fox, Tim; Davidson, Landon; Price, Zan (George)
Subject: Re: Questions about June 23rd submittal - Elk Creek #
Boyd: I just received this email since I was involved in the Grandfather Mountain Highland Games all weekend. I respond later
today. Do not know why the letter was smudged but it must have happened in the US Postal System. Please change the email
address to [e-mail]. The hotmail is a backup and not looked at as often.
Hope all is well.
David F Ramsey, Professional Engineer
434 Skinner Blvd
Dunedin, F134698
or
61 The Glens Blvd
Banner Elk, NC 28604
727 4094639 cell phone
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From: Devane, Bovd
Sent: Thursday, July 9, 2015 3:56 PM
To: mailto :davidf.ramsev(a>hotmail.com
Cc: Anaelo Accetturo ; Fox, Tim ; Davidson, Landon ; Price, Zan (Georae)
Subject: Questions about June 23rd submittal - Elk Creek #
We are now reviewing your plan that we received on June 23, 2015 and have some comments and questions.
1. The front page of all three paper copies we received have identical 1.5" smudges on the lower right -hand
side. Your response to #1 has a smudge after "orifice" that makes the meaning of your statement unclear.
Please provide us with a front page that is not smudged so we can tell what your statement says. To save you
time, you can send that page electronically and I will print copies here.
2. Your response to #1 indicates that "The barrel is 4" and the orifice 1/5" ... ". We assume that is a typo on the
1/5" and can only guess that the smudged area covers a "1 ".
3. You stated in the top paragraph of the second page that "The equation in the manual for the volume of runoff to
be treated does not agree with the NCAC referenced code." Please indicate which equation in the Manual is
inconsistent with the code. The code reference you provided "Section 15ANCAC 02.41.1017(13)" is not a valid
code number and we could find nothing similar. We want to correct any inaccuracies and would appreciate you
helping us determine where it is located.
This information is being sent to you in an email and is not a formal "Request for Additional Information." The intent is
to give you an opportunity to correct your submittal and hopefully expedite the review. Please note that we have not
completed our review of the total material received on June 23, 2015 and we may find a need to provide a formal
"Request for Additional Information."

David F Ramsey, P E- P S M
R &S Engineering and Construction Corporation
434 Skinner Boulevard 61 The Glens Boulevard
Dunedin, F134698 Banner Elk, NC 28604
webpage: www.ramsevenaineerinp-.com
727 409 -4639 e-mail davidframsey(averizon.net 828 963 -5875
Professional Engineer Ohio - Florida -N Carolina -S Carolina- Georgia - Louisiana- Mississippi
Professional Surveyor Ohio - Florida -N Carolina
General Contractor Class A Florida CGC 010310 North Carolina 44555
Please reply to North Carolina Address
June 10, 2015
Ms. Karen Higgins �`OI @ f2 ►1 Mj�
401 and Buffer -Permitting Unit c�
1617 Mail Service Center
Raleigh, NC 27699 -1617 JUN Q 3 2015 j
RE: Elk Creek of Banner Elk DENR - F P407 s E—TDWR# 12 -1070 R ERMTJiN�!
Dear Ms. Higgins:
Enclosed herewith you will find the additional information as requested in an email to Angelo Accetturo dated
May 19, 2015. regarding the aforementioned project and application. Following you will find the response to
your request in the order as presented in your letter with my response in Bold.
1. The size of the wet detention pond orifice was not calculated according to our Manual as we specified
and a considerably over -sized orifice was specified. Your plan indicated that a 4" orifice would drain
the pond over a 48 hour period. That is not correct. Our quick calculation showed that a 4" orifice
would drain the pond in approximately 8 hours. Some of the reasons for the error were that the .0085
SF orifice calculated by your engineer converts to approximately 1.25" diameter orifice, not 4 inches as
was stated. Although 1.25" diameter seems to be a reasonably close to our estimated number, had we
not caught the error, the stormwater would have never been treated during the life of the project. This is
of concern. Furthermore, being one of the most critical calculations relative to the stormwater treatment
device, we would have expected it to be checked before submittal. As we said in our December 30,
2014 letter, please have your engineer refer to Section 3.5.2 "Orifice Equation" in calculating the
estimated drawdown time. In that letter, we specified that the H value should be divided by three
get an accurate assessment of the average head. His drawing needs correction to show the "drill
head" at 2' not 3' and the average head less than that. His "Calculations" on Sheet 9 of 9 show
incorrect "Orifice Equation" formula. His "Average Head" formula shows a division by 2 although
did not use an average head but rather the maximum "driving head" in his actual calculation.
e of the orifice is 1.5" as shown on the Sheet 8 and 9. The barrel is 4" and the orifice
115" d will provide the draw down over a three day period.
2. We were surprised that the specific requests in our July 31, 2014 letter, December 30, 2014 letter and
at our February 3, 2015 meeting regarding the "Water Quality Notes and Calculations" (sheet 9 of 9)
have not been addressed. Again, these are:
a. There is no "filter area" in this plan.
The reference to a filter area is no longer on the plans.