20070168 Ver 1_Emails_20081015

Re: Fw: Revised Proposed Impoundments Watershed Modeling and...
Subject: Re: Fw: Revised Proposed Impoundments Watershed Modeling and Adaptive Management
Plan
From: Kathy Stecker <Kathy. Stecker@ncmail. net>
Date: Wed, 15 Oct 2008 15:49:22 -0400
To: "[e-mail]" <[e-mail]>
CC: [e-mail]
Ian,
I reviewed the proposed plan and discussed it with my staff. We believe that
monitoring two similar existing impoundments would yield more meaningful
information than a model. We do not understand why the applicant would elect to
use an uncalibrated model rather than monitoring for a demonstration, when there
are apparently numerous existing impoundments in the vicinity, including at least
one on Hoppers Creek.
It is not clear how the proposed modeling is "consistent with the currently
accepted and recommended DWQ lakes modeling procedures."
One round of sampling cannot adequately characterize "existing water quality." Some
parameters measured were not reported. Modeling results will be difficult to
interpret because calibration is not possible and very little actual data is used.
It appears that only DO and temperature will be modeled; chlorophyll a is also of
concern in the impoundments.
"Pre-development existing water quality, can be used to set baseline parameters
which the Fall Creek Land Company (FCLC) may use to set target threshold indicators
for water quality for after the lakes have been created." Does this mean that the
water quality in the lakes is expected to be similar to the streams, current
condition? There does not seem to be adequate recognition that the applicant must
demonstrate that the ponds themselves will meet water quality standards. The
proposal seems geared toward demonstrating only how BMPs will protect water quality
after development, with insufficient consideration of how the impoundments
themselves will affect water quality.
"BMPs within the impoundments" implies instream treatment. Is this allowable? The
applicant seems to anticipate that the impoundments will not meet DO standards in
the summer.
Thank you for the opportunity to review this proposal. Please let me know if you
have any questions about my comments. I realize that you asked me about the
modeling portion, but I have many years of lake monitoring experience as well, so I
looked at everything.
-Kathy
[e-mail] wrote:
Hey Kathy, would you be able to provide a very quick review and render an
informal opinion of the proposed modeling plan to demonstrate that "there will be
no violations to NC water quality standards" (words of the consultant and
modeling person). I know where you stand in regards to this type of proposal,
but really need comment on this one. Thanks. Take care, Ian
----Original Message----
From: [e-mail]
Date: Oct 3, 2008 20:12 To: <[e-mail]>
Subj: Fw: Revised Proposed Impoundments Watershed Modeling and Adaptive
Management Plan
----Original Message----
From: [e-mail]
Date: Oct 1, 2008 16:53 To: "Ian McMillan"<[e-mail]>,
1 of 2 10/15/2008 2:56 PM
Re: Fw: Revised Proposed Impoundments Watershed Modeling and...
<Cyndi.Karoly@ncmail.
net>, <kevin.barnett@ncmail.
[e-mail]>
Cc: <[e-mail]>, "Conger, Allen"<[e-mail]>, "Shortelle,
Ann"<[e-mail]>, "Jarvis, Brandon"
<[e-mail]>
Subj: Revised Proposed Impoundments Watershed Modeling and Adaptive Management
Plan
Ian,
Per our conversations from earlier today MACTEC has, on the behalf of
the Fall Creek Land Company, revised the previously submitted Proposed
Impoundments Watershed Modeling and Adaptive Management Plan.
The primary addition is highlighted in red to save time during your
review process. We appreciate your timely review.
Sincerely,
Robert Sain
Robert L. Sain, CFM
MACTEC Engineering and Consulting, Inc.
1308 Patton Avenue
Asheville, NC 28806
Office: 828-252-8130
Cell: 828-989-8899
Fax: [phone]
[e-mail] <mailto:[e-mail]>
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Kathy Stecker <Kathy.Stecker(a,ncmail.net>
Modeling and TMDL Unit
NCDWQ
net>, "Jones, Amanda D SAW"<Amanda.D.
2 of 2 10/15/2008 2:56 PM