20150208 Ver 1_More Info Received_20150325

Fox, Tim
From: Clement Riddle <cement @cwenvcom>
Sent: Wednesday, March 25, 2015 10:17 AM
To: David.W.Brown @usace.army.mil; Fox, Tim
Subject: Camp Watia Site Visit Summary
Attachments: Revised Figures for Camp Watia 3- 25- 2015.pdf
Tim and David,
The following is a summary of items that were discussed regarding the Camp Watia site visit on March 16, 2015. We
believe that this covers all of the issues discussed during this meeting. However, in the event that we have left something
out or you have additional questions, please do not hesitate to contact me.
1. The Corps/DWR had requested a revised creek crossing Typical showing rip -rap placed at least 6 -8" below the original
stream bed and covered with native gravel and sand from the stream. Also should not be added above the ordinary high
water.
Attached is a revised cross - section Detail showing that rip rap will only be added below the Ordinary High Water
Mark and banks will be re- sloped, matted and planted.
2. DWR/Corps reminded applicant that all culverts should be installed to meet the conditions of the permit (imbedded in
the stream).
The culverts have been sized and designed by WGIA Engineering. Attached is anew culvert installation detail for
the culverts installation to be imbedded.
3. DWR asked for explanation about the impact for culvert 5. Can the applicant use or remove the existing culvert below
this impact?
The applicant has prepared the site plan that reduces and minimizes stream impacts by making use of 3 existing
culverts Onsite. Despite their best efforts they are not able to use the existing culvert downstream of the
proposed impact and maintain the project layout. The parking lot is designed with two entrances /exits to
improve traffic flow and safety. On the busiest days this is likely to be one way traffic. The existing culvert that is
not being used is located at such an angle that it would negatively affect the radius of curvature for traffic, which
has a negative impact on traffic flow and safety, especially for large buses. The existing culvert is also located in
close proximity to the camp Welcome Depot. The camp Welcome Depot is centrally located in the center of
camp property and is setback off the County Road in order to allow for traffic and safety as well. This project
site plan has minimal impacts to streams and wetlands and done an outstandingjob of using existing
infrastructure to support the new development. The applicant is not removing the existing culverts located on-
site as that mitigation activity is not required and beyond the scope of this project.
4. Impact # 10 is an after- the -fact culvert replacement. DWR/Corps requested that the culvert be reinstalled to meet the
aquatic life passage requirement. Culvert should be buried approximately 8 inches.
Impact 10 was part of a culvert replacement. It is now CEC's understanding that the replaced culvert will be
removed and the banks will be graded so that they match the existing upstream and downstream
shape /grade. The banks will be matted and seeded per the attached detail. The culvert crossing allowed
construction equipment access to the new grass field. Future access to the field is shown. using anew road
through upland areas as shown on the original Master plan (11x17) submitted with the application.

5. DWR and the Corps requested clarification on Impact #8.
Attached is a revised sheet detail (Sheet 6 of 7). The original detail showed 701inear feet of temporary impact
from utilities &3 locations. The revised detail shows 2 locations for temporary impact (8A and 8B). The
temporary impact for8A is proposed at 20 Imear feet) and the temporary impact for 8B which combines 2 of the
previous impacts (1 gravity line and 1 pressure line) into one trench. The proposed temporary impact for 8B is 50
linear feet, However, the applicant is going to attempt to reduce this length during installation.
6. DWR AND WRC requested that the temporary impact for proposed Impact #9 (water line crossing) be moved
upstream in order to avoid two large trees located along the stream bank.
The applicant has agreed to do this and this is shown on the revised figure, Sheet 7 of 7 (attached)
7. Corps and DWR asked about the location of the proposed waste water treatment plant.
The applicant chose this location for several reasons. It is less costly to locate the facility here because it allows
for theme off more gravity lines. This in turn will be less expensive to operate and maintain over the course of
the camp. Secondly, the location is more removed from the overall vicinity of the camp operations. Please note
that the jurisdictional stream proposed for impact is located within and probably the result of the existing old
road bed
8. DWR was concerned about the location of the proposed swim area.
The applicant located the swim area at this location for best access and due the existing gentle slope. The beach
area is restricted by larger wetland area to the west and steeper topography to the east that would prevent easy
and safe access by campers. The beach is impacting 0.02 acres of wetlands.
9. The Corps requested and updated Stream and Wetland Delineation Map (figure 6 - stream #7).
Kevin Mitchel submitted the revised dl) map to David Brown on March 13, 2015.
10. DWR asked about the parking lot areas and stormwater.
The seasonal camp has 2 gravel parking lot areas shown. Each of the parking areas is about 0.06 acres in
size. There is no curb and gutter and the sheet flow. is being directed into grass swales. It is CEC's opinion that
due to the small size of the parking area and the use of sheet flow and grass ditches that this area meets the low
density requirement and that no additional stormwater treatmentlmanagement is needed.
I hope that this addresses all of the concerns raised in the onsite meeting.
Clement
OW
224 South Grove Street, Suite F
Hentlereonville, NC 28792
office: 828 -698 -9800
Mobile: [phone]

PROPOSEDTEMPORARY
`SEWER LINE CROSSINGS 3 EA.
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WGLA Engineering, PLLC PROPOSED
CONSULTING I N61NEERS & LAND PLANNERS CAMP WATLA SITE IMPROVEMENTS
NC LIcenso No; P -1342 NANTAHALA TOWNSHIP SHEET 6 OF 7
3N N. XItK Seraas SWAIN COUNTY, fob:M 10130
HeatlerranVI , N7 28791' NORTH CAROLINA Date: 1129115
(R2! bq7 -7177
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Revised 1117115

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PROPOSER
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SITE IMPROVEMENTS
NANTAHALA TOWNSHJP
SHEET 7 OF 7'
SWAIN COUNTY,
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NORTH; CAROLINA
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CONSULTING ENGINEERS & LAND PLANNERS CAMP WATIA PIER DETAILS
NC License No; P.13A2 NANTAHALA TOWNSHIP
214 N, Funs S"ec SWAIN COUNTY',.
He6deuot NC 28792 job*. 10138
Am- (M) 687,7177 NORTH CAROLINA Date: 8118!(5
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Revised 1/17/15

PROPOSED nLL
NEW PIPE BURIED 12" BELOW STREAM BED ��1 ~-' EXISL GROUND
TYPICAL CULVERT_ SECTIONI
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CAMP WATIA:
:STREAM CULVERT
NANTAHALATOWNSHIP
DETAIL
SWAIN COUNTY
job:#t 10138:
NORTH CAROLINA.
Date: 3118115
Scale:.: N T.S.

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