Allen Steam Facility - Duke Energy (11)

Georgoulias, Bethany
From Parker, Michael
Sent- Friday, July 22, 2011 9 44 AM
To Georgoulias, Bethany
Subject RE SR for Plant Allen Steam Station - NCS000546, SW011 and SWO12
Bethany,
Sorry I couldn't get back to you before you had to send the draft out I was in the field all day
I think the verbiage you included in the draft will be fine Since the areas draining both outfalls SWO11 and SWO12 are
similar in nature, and both drain a significant part of the site where industrial activities occur, I felt that it was necessary
that we at least get some background data from both outfalls at the beginning of the permit term and then we could
evaluate the -data and determine if more frequent testing is necessary The folks with Duke are agreeable to conducting
additional testing at some of the outfalls where asignificant portion of their industria[activities takes place, they would
prefer, however, to limit or reduce any testing should the results be consistent with adjacent outfalls deemed as
representative
Feel free,to call and discuss if need be I'll be here all day
k"WrZ
From: Georgoulias, Bethany
Sent: Wednesday,, July 20, 2011 9.39 AM s
To: Parker, Michael
Subject: RE SR for Plant Allen Steam Station - NCS000546, SWO11 and SWO12
Hi there — we had to go aheadi and post Plant Allen -s draft permit for the notice announcement today, so I modified the
draft slightly as a fix until we can,get this question on SWO11 and'SW012 sorted, out We can talk,more when you get a
chance The new footnote 4 to the monitoring table (Table 1) says this
Stoi rnwater Discharge Outtalls SWO11 and SWO12 (%Nhich also serve as outfalls 004 and 003 under NPDES wastewatei permit
NC0004979) should each be sampled foi these pai ameteis at least once,dui ing a representative stoi m event during Yeaii 1 —
Period land inustbe reported in accordance Wath Pact lll; Section C 4 (Reporting Re�luirements -- Non-Storniwatei Dischaiges)
13encliuiaik erceed5nces,at`tliese ouffalls mayitrigger„a Tier 1 response 'De�endmg ont'sampl r�g�iesults�and_ changes tp=activities in
the &amage,area"s,,the Div"i'sion Wray requne"contiriued stotmiN-ater saml Iiiigwat one of both otAbese outfalls
Thanks' Bg
Bethany Geofgouhas
Environmental Engineer
NCDENR I DWQ I Stormwater Permitting Unit
1617 Mail Service Center, Raleigh, NC 27699-1617
512 N Salisbury St, Raleigh, NC 27604
Phone [phone]
Fax [phone]
NEW Website http Hportal ncdenr org/web/wq/ws/su
E-mail correspondence to and from this address may be subject to the North Carolina Public
Records Law and may be disclosed to third parties
From: Georgoulias, Bethany
Sent: Tuesday, July 19, 20119-08 AM

To: ,Parker, Michael
Subject: RE- SR for Plant Allen Steam Station - NCS000546, SWO11 and SWO12
Hi Mike,
I have a question on this one about the stormwater outfalls SWO11 and SWO12 Your report agreed with their request
for SWO11 to be representative of SWO12 (but with sampling at both outfalls in the first period)
When I went through the wastewater permit files, I found these outfalls were also under the NPDES wastewater permit
as outfalls 004 and'003 which I thought were discharging non-contact,cooling,water Is that,discharge not more or less
continuous? Maybe not or maybe they are not,exactly the same outfalls?
Here's what I'd written
1 Because wastewater permit NC0004979 does not include metals monitoring for the discharges through outfalls
003 and 004, the draft permit clarifies that corresponding SWO12 and SVV011 stormwater,outfalls should be
sampled for all parameters in this permit once during the first sampling:period
Given that stormwater contributes a small percentage of flow compared to the much larger, continuous non -
contact cooling water and other wastewater flows (4 5 MGD and 6 5 MGD from 003 and 004, respectively), the
potential for,contaminants to reach concentrations of'concern is probably not very high An estimate of
stormwater runoff during a large storm (6" in 24 hours) with drainage,area and percent imperviousness
showed a stormwater contribution of only ^-15% of the total discharge flow from SWO12-003 and ^-2% of flow
fromSWO11-004 [The plant does testa 24-hour composite sample from 003 for a large suite of chemicals for
NPDES wastewater permit renewal, however, that sample is usually not taken during a rain event]
The one-time sample is intended to screen for possible stormwater problems at these outfalls and confirm
negligible contribution Any benchmark exceedances would only trigger a Tier 1 response
I have no problem with the site sampling SWO11 as a regular stormwater outfall (and as a representative one after they
sample SWO12 at least once), but I want to make sure I have my facts straight In the draft permit, I required SWO11 and
SWO12 to be sampled'just one time during a rain event to demonstrate negligible contribution because I thought they'd
be sampling wastewater from these same-outfall's under the other permit Maybe that footnote isn't necessary
If you could help clarify that for me so I can make sure the draft is accurate, I'd appreciate it Thanks)
IS
Bethany Georgoulias
Environmental Engineer
NCDENR I DWQ I Stormwater Permitting Unit
1617 Mail Service Center, Raleigh, NC 27699-1617
512 N Salisbury St, Raleigh, NC 27604
Phone"[phone]
Fax [phone]
NEW Website http_//,portal ncdenr org/web/wq/ws/su
E-mail correspondence to and from this address may be subject to the North Carolina Public
Records Law and may be disclosed to third parties
From:, Parker, Michael
Sent: `Wednesday, July 13, 2011 1 46 PM

To: Georgoulias, Bethany
Subject: RE SR for Plant Allen Steam Station - NCS000546
Typo I'll correct the original
From: Georgoulias, Bethany
Sent: Wednesday, July 13, 2011 1.23 PM
To: Parker, Michael
Subject: RE. SR for Plant Allen Steam Station - NCS000546
Mike,
It's probably dust a typo from where you did the other staff report, but I noticed in the second paragraph you have
'Riverbend Steam Station' in here dust wanted to make sure this is the right one' -bg
Bethany Georgoulias
Environmental Engineer
NCDENR I DWQ I Stormwater Permitting Unit
1617 Mad,Service Center, Raleigh, NC 27699-1617
512 N Salisbury St, Raleigh, NC 27604,
Phone [phone]
Fax [phone]
NEW Website http //portal ncdenr, org/web/wq/ws/su
E-mail correspondence to and from this address may be subject to the North Carolina Public
Records Law and may be disclosed to third parties
From:, Parker, Michael
Sent: Wednesday, July 13, 2011 11 26 AM
To: Georgoulias, Bethany
Subject: SR for Plant Allen Steam Station - NCS000546
Advance copy Hot off,the press Rob hasn't signed it yet (he's out thexest of today), but I expect him to sign it
tomorrow with no significant changes -
TO=
From: Georgoulias, Bethany
Sent: Thursday, June 16, 20113 01 PM
To: Parker, Michael
Subject: RE. Plant Allen Steam Station - NCS000546
Hi Mike,
I sent it 5/'12/2011 Oh no, don't tell me it got losti Attached is an electronic copy, but I don't have the,application
electronically It was big — including the site plan All of,it went to the MRO last month If the whole thing went missing,
I guess,) could send the copy of the application that's supposed,to go to Central Files,as long as you send it back �
Bethany Georgoulias
Environmental Engineer
NCDENR I DWQ I Stormwater Permitting Unit
1617 Mail Service Center„ Raleigh, NC 27699=1617
512'N Salisbury St, Raleigh, NC 27604
Phone [phone]
Fax [phone]
NEW Website http //portal ncdenr org/web/wq/ws/su
E-mail correspondence to and from this,address may be subject to the North Carolina Public

Records Law and may be disclosed to third parties
From: Parker,, Michael
Sent: Thursday, June 16, 2011 2.52 PM
To: Georgoulias, Bethany
Cc: Lowther, Brian
Subject: RE Plant Allen Steam Station - NCS000546
Bethany,
Marcia does not process NPDES staff reports, so any NPDES permit application would come to either me or Samar
Since I have been handling all of Duke's NPDES permitting for a number of years, this project -would have likely been
given tome I've asked around and to -date we have not received,the Allen SW permit application package in this office
I do have an advance copy of the, Riverbend SW permit application (sent by Robert Patterson), but nothing has come in
here yet on Plant Allen I do know the application is in-house from talking with a Duke rep last week when I did the
Marshall site visit, but we have yet to receive our copy When did you send the request down?
Mike Parker
From: Georgoulias, Bethany
Sent: Thursday, June 16, 20112:42 PM
To: Parker, Michael, Allocco, Marcia
Cc: Lowther, Brian
Subject: Plant Allen Steam,Station - NCS000546
Hi there,
Just checking if either of you have my staff report request on this site. Brian Lowther dust got his back on Marshall, and
we'd like to send both these permits to notice at the same time (early next week) I don't mind if the staff report is
lagging behind a bit, as long as I know MRO is okay with it going to notice as the draft is for now Any update on status,
or could you forward on to the person who's been working on this one,?
Thanksi
Bg
Bethany`Georgoulias
Environmental Engineer
NCDENR I DWQ I Stormwater Permitting Unit
1617 Mail Service Center, Raleigh, NC 27699-1617
512 N Salisbury St, Raleigh, NC 27604
Phone [phone]
Fax [phone]
NEW'Website http //portal ncdenr org/web/wq/ws/su
E-mail correspondence to and from this address may be subject to the North Carolina Public
Records Law and may be disclosed to third parties