20110661 Ver 1_Staff Comments_20120516

Strickland, Bev
From: Chapman, Amy
Sent: Wednesday, May 16, 2012 9:45 AM
To: Strickland, Bev
Subject: FW: 11-0661 Chastain II
ditto
Amy Chapman
Wetlands, Buffers, Stormwater, Compliance and Permitting Unit (WeBSCaPe)
NCDENR/Division of Water Quality - Wetlands and 5tormwater Branch
1650 Mail Service Center
Raleigh, NC 27699-1650
Office: [phone]
Fax: [phone]
Website: http://porta1.ncdenr.org/web/wg/swp/ws/401/riparianbuffers
E-mail: amy.chapman@ncdenr. ov
E -mai( correspondence to and from this address may be subject to the North Corolino Public Records Law and may be
disclosed to third parties.
From: Lucas, Annette
Sent: Wednesday, May 16, 2012 8:07 AM
To: Peter Cnossen
Cc: Chapman, Amy
Subject: RE: 11-0661 Chastain II
Peter,
I have reviewed the information and have some concerns:
1. The maximum allowed side slope for the bypass channel is 3:1, which has been exceeded in the diagram. In
your resubmittal, please provide one -foot proposed contour lines for the bypass channel. It appears that the
whole system requires more space to accomodate the bypass channel and also for the grading between the scour
hole and the bypass channel. If this is the case, please provide an updated PCN form to reflect the additional
impacts in the buffer.
2. Please provide all relevant elevations and dimensions on the splitter box detail. The DWQ would prefer a
professionally drawn detail of the splitter box.
3. Please sign and seal all plan sheets.
These items will be conveyed in a request for more information letter.
Thanks,
Annette
From: Peter Cnossen [e-mail]]
Sent: Tuesday, May 15, 2012 3:55 PM
To: Lucas, Annette

Cc: Chapman, Amy
Subject: RE: 11-0661 Chastain II
Annette,
I have attached a detail for the splitter flow device and a grading plan for the high-flow by-pass channel for your review.
Thanks for allowing this process to continue in this manner. I've heard from the HOA and they're anxious to get started
on the repair work.......... which is good to hear. Thanks for all your help!
Peter
Peter Cnossen, P.E.
Jones & Cnossen Engineering, PLLC
221 N. Salem Street, Suite 001
Apex, North Carolina 27502
[phone]
From: Lucas, Annette[mailto:annette.lucasCa)ncdenr.gov]
Sent: Thursday, May 10, 2012 2:43 PM
To: Peter Cnossen
Cc: Chapman, Amy
Subject: 11-0661 Chastain II
Peter,
I have been reviewing your most recent submittal on this project. I am glad to see that you decided to incorporate a
flow splitting device and bypass channel. I think that will greatly enhance the performance of the device.
I was wondering if you could please provide a detail of the flow splitting device for my review. Also, could you please
provide a plan sheet that includes the proposed topographic contour lines for the bypass channel? If you can provide
these by close of business on May 17 and they are acceptable, then Amy and I could approve the project without
another request for more information letter.
Thanks,
Annette
Annette M. Lucas, PE
Environmental Engineer
NCDENR I DWQ I Wetlands and Stormwater Branch
1650 Mail Service Center, Raleigh, NC 27699-1650 (Mail.)
512 N. Salisbury St, Raleigh, NC 27604 1 Stn Floor (Location 8k; P a.a cels)
Phone: [phone] Fax: [phone] Email: lratta=laa artaala.cav
Website: http://portal.ncdenr.org/web/wq/swp/ws/401
Before pririWi; this email, please consider your budget and the enviromiient.
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.

Chapman, Amy
From Peter Cnossen Ucengineenng2@gmad com]
Sent Wednesday May 16 2012 2 33 PM
To Lucas Annette
Cc Chapman Amy Divida
Subject RE 11 0661 Chastain II
Annette
I m more than a little frustrated with getting this repair approved This whole matter started with trying to do the right
thing and its been nothing but a nightmare I man engineer and not an environmental consultant so maybe that s the
problem But from an engineering perspective this repair is afield issue and its needs to be dealt with as such The
conditions at this site are difficult and some flexibility in the repair will be needed If the DWQ has issues with providing
flexibility in the repair then honestly I m not sure that a repair can be done I ve tried to be reasonable in the submittals
but reviewing them to the nth degree is ridiculous 111 provide a scaled drawing of the by pass channel if that s what you
need And 111 even update the PCN form accordingly The existing yard inlet will be used as the splitter box If you need
a detail of a yard inlet 111 forward one to you But asking for a professionally drawn splitter box why when all
we re doing is modifying the existing yard inlet as depicted on the sketch sent in my previous email Isn t this sufficient?
I may be venting a bit but I never would have imagined this process taking this long I m asking for your help and
approval to fix a problem Thanks
Peter
Peter Cnossen P E
Jones & Cnossen Engineering PLLC
221 N Salem Street Suite 001
Apex North Carolina 27502
[phone]
From Lucas Annette [mailto annette Iucas(ftcdenr gov]
Sent Wednesday May 16, 2012 8 07 AM
To Peter Cnossen
Cc Chapman Amy
Subject RE 110661 Chastain II
Peter
I have reviewed the information and have some concerns
1 The maximum allowed side slope for the bypass channel is 3 1, which has been exceeded in the diagram In
your resubmittal, please provide one foot proposed contour lines for the bypass channel It appears that the
whole system requires more space to accomodate the bypass channel and also for the grading between the scour
hole and the bypass channel If this is the case, please provide an updated PCN form to reflect the additional
impacts in the buffer
2 Please provide all relevant elevations and dimensions on the splitter box detail The DWQ would prefer a
professionally drawn detail of the splitter box
3 Please sign and seal all plan sheets

These items will be conveyed in a request for more information letter
Thanks
Annette
From Peter Cnossen Dcengineering2@gmad com]
Sent Tuesday, May 15, 2012 3 55 PM
To Lucas, Annette
Cc Chapman, Amy
Subject RE 110661 Chastain II
Annette
I have attached a detail for the splitter flow device and a grading plan for the high flow by pass channel for your review
Thanks for allowing this process to continue in this manner I ve heard from the HOA and they're anxious to get started
on the repair work which is good to hear Thanks for all your help
Peter
Peter Cnossen P E
Jones & Cnossen Engineering PLLC
221 N Salem Street Suite 001
Apex North Carolina 27502
[phone]
From Lucas, Annette [mailto annette IucasOncdenr gov]
Sent Thursday, May 10, 2012 2 43 PM
To Peter Cnossen
Cc Chapman Amy
Subject 110661 Chastain II
Peter
I have been reviewing your most recent submittal on this project I am glad to see that you decided to incorporate a
flow splitting device and bypass channel I think that will greatly enhance the performance of the device
I was wondering if you could please provide a detail of the flow splitting device for my review Also could you please
provide a plan sheet that includes the proposed topographic contour lines for the bypass channel? If you can provide
these by close of business on May 17 and they are acceptable then Amy and I could approve the project without
another request for more information letter
Thanks
Annette
Annette M Lucas PE
Environmental Engineer
NCDENR I DWQ I Wetlands and Stormwater Branch
1650 Mail Service Center Raleigh NC 27699 1650 (Mail)
512 N Salisbury St Raleigh NC 27604 1 9th Floor (Location & Parcels)

Chapman, Amy
From Lucas Annette
Sent Wednesday May 16 2012 8 07 AM
To Peter Cnossen
Cc Chapman Amy
Subject RE 11 0661 Chastain II
Peter
I have reviewed the information and have some concerns
1 The maximum allowed side slope for the bypass channel is 3 1, which has been exceeded in the diagram In
your resubmittal, please provide one foot proposed contour lines for the bypass channel It appears that the
whole system requires more space to accomodate the bypass channel and also for the grading between the scour
hole and the bypass channel If this is the case, please provide an updated PCN form to reflect the additional
impacts in the buffer
2 Please provide all relevant elevations and dimensions on the splitter box detail The DWQ would prefer a
professionally drawn detail of the splitter box
3 Please sign and seal all plan sheets
These items will be conveyed in a request for more information letter
Thanks,
Annette
From Peter Cnossen Dcengmeenng2@gmad com]
Sent Tuesday, May 15, 2012 3 55 PM
To Lucas, Annette
Cc Chapman, Amy
Subject RE 11 0661 Chastain II
Annette
I have attached a detail for the splitter flow device and a grading plan for the high flow by pass channel for your review
Thanks for allowing this process to continue in this manner I ve heard from the HOA and they re anxious to get started
on the repair work which is good to hear Thanks for all your help'
Peter
Peter Cnossen P E
Jones & Cnossen Engineering PLLC
221 N Salem Street Suite 001
Apex North Carolina 27502
[phone]

From Lucas, Annette [mailto annette IucasC&ncdenr gov]
Sent Thursday May 10 2012 2 43 PM
To Peter Cnossen
Cc Chapman, Amy
Subject 110661 Chastain II
Peter
I have been reviewing your most recent submittal on this project I am glad to see that you decided to incorporate a
flow splitting device and bypass channel I think that will greatly enhance the performance of the device
I was wondering if you could please provide a detail of the flow splitting device for my review Also could you please
provide a plan sheet that includes the proposed topographic contour lines for the bypass channel? If you can provide
these by close of business on May 17 and they are acceptable then Amy and I could approve the project without
another request for more information letter
Thanks
Annette
Annette M Lucas PE
Environmental Engineer
NCDENR 4 DWQ I Wetlands and Stormwater Branch
1650 Mail Service Center Raleigh NC 27699 1650 (Mail)
512 N Salisbury St Raleigh NC 27604 1 91h Floor (Location & Parcels)
Phone [phone] Fax [phone] Email Annette Lue`ntirr nedcnr gov
Website http //portal ncdenrorg/webJwg/swp/ws/401
`A Before printing this email please consider your budget and the, envionrnent
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

Chapman, Amy
From Peter Cnossen Ucengineermg2@gmail com]
Sent Tuesday May 15 2012 3 55 PM
To Lucas Annette
Cc Chapman Amy
Subject RE 11 0661 Chastain II
Attachments 1022 R pdf
Annette
have attached a detail for the splitter flow device and a grading plan for the high flow by pass channel for your review
Thanks for allowing this process to continue in this manner I ve heard from the HOA and they re anxious to get started
on the repair work which is good to hear Thanks for all your help'
Peter
Peter Cnossen P E
Jones & Cnossen Engineering PLLC
221 N Salem Street Suite 001
Apex North Carolina 27502
[phone]
From Lucas Annette [mailto annette IucasOncdenr qov]
Sent Thursday May 10, 2012 2 43 PM
To Peter Cnossen
Cc Chapman, Amy
Subject 110661 Chastain II
Peter
I have been reviewing your most recent submittal on this project I am glad to see that you decided to incorporate a
flow splitting device and bypass channel I think that will greatly enhance the performance of the device
I was wondering if you could please provide a detail of the flow splitting device for my review Also could you please
provide a plan sheet that includes the proposed topographic contour lines for the bypass channel? If you can provide
these by close of business on May 17 and they are acceptable then Amy and I could approve the project without
another request for more information letter
Thanks
Annette
Annette M Lucas PE
Environmental Engineer
NCDENR ( DWQ I Wetlands and Stormwater Branch
1650 Mail Service Center Raleigh NC 27699 1650 (Mail)
512 N Salisbury St Raleigh NC 27604 1 911 Floor (I oc ition & Pai ce 1,,)
Phone [phone] Fax [phone] Email Annette I u< i-�(u nc d(nr � o%
Website http //portal ncdenrorg/web/wQ/swP/ws/401

`.A Betore printing this envid plerse consider your budget and the environment
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

Lucas, Annette
From
Lucas Annette
Sent
Thursday May 10 2012 2 43 PM
To
Peter Cnossen
Cc
Chapman Amy
Subject
11 0661 Chastain II
Peter
I have been reviewing your most recent submittal on this project I am glad to see that you decided to incorporate a
flow splitting device and bypass channel I think that will greatly enhance the performance of the device
I was wondering if you could please provide a detail of the flow splitting device for my review Also could you please
provide a plan sheet that includes the proposed topographic contour lines for the bypass channel? If you can provide
these by close of business on May 17 and they are acceptable then Amy and I could approve the project without
another request for more information letter
Thanks
Annette
Annette M Lucas PE
Em n onmental Engineer
NCDENR I DWQ I Wetlands and Stormx�ater Branch
1650 Mail Service Center Raleigh NC 27699 1650 (M ul)
512 N Saltsbun St Raleigh NC 27604 1 9u, Floor (I ocation & Parcels)
Phone [phone] Fax [phone] Email Ann( ttc 1 u( tslu nc cl( nr�o�
Website http //portal ncdenr org/webLwq/swp/ws/401 ���
`.A Before prmthn, this emaiI plerse comider your bud&et rnd the environment
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