HomeMy WebLinkAboutComplete Dredge Sampling Planw ierracon
November 20, 2022
Belhaven Marina
332 East Water Street
Belhaven, NC 27810
ATTN: Toby Tetterton
tobin(agotricounty.com
tobin(a)rsnet.org
RE: Dredge Sampling Methodology
Dear Mr. Tetterton:
The purpose of this letter is to summarize our proposed sampling methodology for the Belhaven
Marina project.
In order to obtain representative samples of the existing soils in the basin that are to be dredged,
we offer the following methodology.
Mobilize to the site with sediment samplers, laboratory prepared containers and the
appropriate PPE.
Using a boat, travel to the locations marked on the attached drawing. The location of the
sampling will be documented using a handheld GPS.
Anchor the boat at the sample location.
Obtain a sample of the upper 3 feet of sediment at each location.
Empty the sediment sample into a stainless steel bowl. Mix the sample using stainless tell
spoons and gloved hands. The mixing bowls and spoons will be cleaned before sampling
and between each sampling point.
Place the samples in laboratory prepared jars. Then into iced coolers.
Ship the samples on ice overnight to Pace Analytical Lab in Huntersville, NC.
Analyze the samples obtained for Metals using EPA Method 6010, Mercury using EPA
Method 7470A, PCBs using EPA Methos 8082 Low Level and PAHs using EPA Method
8270C.
Issue our findings in a written report.
Sincerely,
0*,-J(Z P: PC511 .
Carl F Bonner, PE
Principal / Office Manager
Terracon Consultants, Inc. 314 Beacon Drive Winterville, INC 28590
P [252] 353 1600 F [252] 353 0002 terracon.com Registered INC F-0869
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