20061048 Ver 1_Staff Comments_20060523

J••••••i i `~~••~•••••`•i•••t~'
~~~ ~~~
,~~~.,
_~,,,~,~- ~ ;~.~~--z-~-~{
s/~ ~/~
// ~ , , ,
/ ~~~ ~
1, v~
''LL,
~~tt ~ /
c- ~ ~
4~~~
1
~~"~
~~
~--~~
~,~ ~
..~ ~~ ,-

Avon Mine Site
Subject: Avon Mine Site
From: John Hennessy <[e-mail]>
Date: Tue, 23 May 2006 13:32:43 -0400
To: Tom Reeder <[e-mail]>, Cyndi Karoly <[e-mail]>
I just thought of something I should have earlier. Sorry. Has anyone done an
analysis of the sand that is to be mined from the site. Is it of the proper type for
use in dune restoration and beach nourishment. If not, it may not be an appropriate
sand source for DOT to use (I told this sand issue on the coast was complex). If it
has too many fines, WRC, USFWS, DCm, etc. will have concerns (and may not authorize)
use of the sand for placement by DOT. Sands that are too fine, can inhibit
macroinvertebrate populations and turtle nesting to name a couple of issues.
Depending where they want to use the sand on NC 12, it could not be appropriate. As
an example, if it is for use in Pea Island National Wildlife Refuge, they will not
permit sands that are too fine for use in dunes or beach nourishment. In has effects
on the macro invertebrate populations that serve as the food base for the bird
populations that the refuge is supposed to support. Also, too fine a sand may cause
problems with turtle nesting. The refuge may have problems with the wrong sand in
that case too. For areas outside the refuge, the macro invertebrate issue is less of
a regulatory concern, but the turtle nesting issue may still be. Anyway, my point is
that before we recommend this to the EMC, that we make sure that the sand can be used
for its stated purpose. I hope this helps.
1 of 1 5/25/2006 10:15 AM