20100190 Ver 1_More Info Received_20100624

FW: Rogers Bay SAV/Shellfish Survey DWQ # 2010 0190 Page 1 of 1
FW: Rogers Bay S"/Shellfish Survey DWQ # 2010 0190
Steenhuis, Joanne
Sent: Thursday, June 24, 2010 2:53 PM
To: Strickland, Bev
Attachments: RogersBay-SampleLocation0001.pdf (4 MB) ; Rogers_Bay-SAV-report[ 1].doc (56 KB) ; SAV_Survey_guidance
[1].doc (30 KB)
-----Original Message-----
From: [e-mail] [mailto:[e-mail]]
Sent: Thursday, June 10, 2010 7:43 PM
To: David.L.Timpy: usace.army.mil; Huggett, Doug; Steenhuis, Joanne; ron.sechler:
noaa.gov; Everhart, Steve
Cc: Govoni, Daniel; Snider, Holley; ONeal, Jessi E; Ellwood, Molly M.; safetycomp:
msn.com; tmherndonjr: yahoo.com
Subject: Rogers Bay SAV/Shellfish Survey
All,
Attached is the results from a SAV/Shellfish Survey that was performed for the
proposed Rogers Bay Project.
With these findings, I am requesting that the project no longer be placed on hold.
If anyone needs a hard copy or any additional information, please advise.
Thanks!
Chad
Darian Chad Kimes, PE
Engineering Services
910-470-4494
https://mail.nc.gov/owa/?ae=Item&t=IPM.Note&id=RgAAAAAAOgPoLNIPQZ06vHVR... 6/25/2010
Chad Kimes, PE
104 Newton Road
Hampstead, NC 28443
910-470-4494
dckimeskcharter.net
Mr. Dave Timpy, Project Manager
USACE
Wilmington Regulatory Field Office
69 Darlington Avenue
Wilmington, NC 28403
Dr. Steve Everhart
Division of Coastal Management
June 10, 2010
Ms. JoAnne Steenhuis
Division of Water Quality
127 Cardinal Drive Ext
Wilmington, NC 28405
Mr. Doug Huggett
Division of Coastal Management
127 Cardinal Drive Extension 400 Commerce Avenue
Wilmington, NC 28405 Morehead City, NC 28557
Subject: SAV and Shellfish Survey for Rogers Bay Campground Project, Onslow
County, North Topsail Beach, NC.
All,
This letter is in response to your request for a SAV survey and shellfish survey for the proposed
Rogers Bay Campground Project located in North Topsail Beach, Onslow County, North
Carolina. Darian Chad Kimes, PE, Engineering Services performed these surveys. The
following are the results:
Rogers Bay Campground SAV & Shellfish Survey
On May 22, 2010, a shellfish and SAV survey was conducted within the proposed project limits
of Rogers Bay Campground property on Topsail Island in Onslow County.
SAV surveys were conducted during low tide between 1:00 pm and 3:00 pm. Twenty six one
meter squares samples were taken approximately every 10 meters within the proposed boat ramp
and dredging area (see attached map). Water depths during sampling ranged from 1.5 to 3.5 ft.
Bottom substrate was predominately deep mud except for the canal between the bay and the
AIWW where the substrate was predominately sand. Water clarity was poor during sampling,
ranging from 1 to 1.5 ft so visual survey techniques were not sufficient. Therefore, rake samples
were taken to determine if rhizomes or buried SAV's were present. Rake samples did not
identify any rhizomes or buried SAV's. Findings and densities of vegetation are found in the
Table 1. No grasses were found in any of the samples.
Rogers Bay Survey, Page 2
Shellfish surveys were conducted during this same time period. No shellfish were visible within
or immediately adjacent to project area. Twenty six rake samples were taken in the same
proximity of the SAV survey plots. Live oysters clusters and clams were scarce in the sample
sites. Areas where oyster shells were located are also noted in the Table 1. Visual observation
of oyster clusters were also noted on the banks adjacent to sites 5, 9, 23 and 26.
Table 1
Grasses - Ruppia
maritime, Halodule
SHELLFISH
SAMPLE wri htii Other Vegetation Oyster Clusters Oyster Shells Clams
1 Absent Absent Absent Absent Absent
2 Absent Absent Absent Absent Absent
3 Absent Absent Absent Absent Absent
4 Absent Absent Absent Absent Absent
5 Absent Absent Absent Absent Absent
6 Absent Absent Absent Absent Absent
7 Absent Absent Absent Absent Absent
8 Absent Absent Absent Present Absent
9 Absent Absent Absent Absent Absent
10 Absent Absent Absent Absent Absent
11 Absent Absent Absent Present Absent
12 Absent Absent 1 Present 1
13 Absent Absent 1 Absent Absent
14 Absent Absent 1 Present Absent
15 Absent Absent 3 Present 1
16 Absent Absent Absent Present Absent
17 Absent Absent 2 Present Absent
18 Absent Sparse Absent Present Absent
19 Absent Sparse Absent Present Absent
20 Absent Absent Absent Absent Absent
21 Absent Absent Absent Absent Absent
22 Absent Sparse Absent Absent Absent
23 Absent Absent Absent Present Absent
24 Absent Sparse Absent Present Absent
25 Absent Absent Absent Absent Absent
26 Absent Absent 3 Present Absent
As requested by Dave Timpy, I have attached a copy of our SAV and Shellfish Guidelines.
If you need any additional information, please feel free to contact me.
Sincerely,
Chad Kimes, PE
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SUGGESTED PERMIT APPLICATION SAMPLING PROTOCOLS FOR SHELLFISH AND SUBMERGED AQUATIC
VEGETATION (SAV) IN COASTAL NORTH CAROLINA
Shellfish
-Sample at the rate of at least 25 one-meter square samples per acre with not less than 10 samples per
project site
-Samples should be taken on a depth-stratified basis, either randomly or along transects
-Sampling gear should be a standard clam rake or a steel tine garden rake
-Rake the entire meter square unless there are large numbers of live oysters visible at the specific
sample site, in which case count the visible oysters within the specific sample site
-Treat intertidal and subtidal areas the same within the overall sampling area
-Samples should include at least the following data:
Location for every sample on a map of the site
Date and approximate local time of sampling work
Depth (and lunar tide stage where applicable)
Bottom salinity and water temperature
For each sample:
General bottom type (estimate: mud, sandy mud, muddy sand, sand, shell, SAV, macroalgae)
Numbers of oysters and/or hard clams for each sample
Optional data:
Shell length (umbo to lip) in mm for each oyster and clam collected
Other pertinent observations (such as SAV presence)
SAV
-Conduct sampling for SAV during the approximate time periods (periods of high SAV biomass in a given
area) shown on the attached map for the desired location
-Sample on transects spaced evenly to cover the entire area to be affected by the dock/pier and
associated activities
-Visual sampling should include the area along the transect as well as on both sides of the transect such
that the entire area in which the bottom is visible is sampled.
-For areas where the bottom is not visible, transects should be evenly spaced and sampled with a rake at
evenly spaced distances along the transect sufficient to cover the entire site
-Samples should include at least the following data:
Location for every sample on a map of the site
Date and approximate local time of sampling work
Depth (and lunar tide stage where applicable)
Bottom salinity and water temperature; Secchi depth
For each sample:
General bottom type (estimate: mud, sandy mud, muddy sand, sand, shell, SAV, macroalgae)
When the bottom and/or SAV is visible without raking, estimate coverage as shown below and
in the attached figure:
Dense: >70% coverage
Moderate: >40% but less than 70% coverage
Sparse: 10 - 40% coverage
Very sparse: > 0 -10% coverage
Absent: None
When SAV is not evident at the sediment surface, rake meter square sample sites throughout the site to
search for rhizomes and other buried SAV structures
Report presence of rhizomes and other buried SAV structures found per sample
Identify any SAV, including rhizomes and other structures present, to species when feasible
Other pertinent observations (such as shellfish presence)