20201685 Ver 1_Final INFO_20210609

Strickland, Bev
From: Tinklenberg, Chris <[e-mail]>
Sent: Wednesday, June 9, 2021 11:04 AM
To: Johnson, Alan
Cc: Day, Blake
Subject: FW: [External] RE: Savona DWR # 20-1685, SAW 2020-02248
Attachments: EX3 - Savona - Portman Development Exhibit with Topo_2020-0622.pdf; Savona Mill -
Earthwork Exhibit_2021-0420.pdf
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Good morning Alan — per our conversation yesterday, please see responses to your comments below in red. Please
review at your convenience and let me know if you need anything else.
Thanks,
Chris
Chris Tinklenberg, PWS
Kimley-Horn 1200 South Tryon Street, Suite 200, Charlotte, NC 28202
Direct: 704 409 1802 I Mobile: [phone]
From: Day, Blake <[e-mail]>
Sent: Tuesday, May 11, 2021 7:37 PM
To: Tinklenberg, Chris <[e-mail]>
Subject: RE: [External] RE: Savona DWR # 20-1685, SAW 2020-02248
1) The stream is there, so that should go into the process of deliberating whether a project
is viable or not with the area of concern. I find it hard to believe that one building
affects the entire project. Profit depends on one building.
a. They are apartments vs units for sell. To achieve the minimum return we need
to be as close to 650 units as possible. Right now we are at 608-634.
b. As part of the multi -family rezoning petition, we have proposed a reduction in
the required 1:1 parking (spaces per unit) to 0.6:1 which intends to further
minimize grading and disturbance within the floodplain and buffer of Stewart
Creek.
2) It is approximately a 1.5 acre area, mostly covered in parking and also reduced by
setbacks. The total site is approx. 28 acres. Hard to see how avoidance and
minimization is being met or being considered.
a. When you subtract the 100-ft buffer along Stewart Creek and the existing mill
footprint, the developable area is only 16-acres. Flood plain and required
roadway network improvements further reduces the developable area.
1

Significant grading improvements required for floodplain development to
increase the developable area to 15.5 acres. The attached exhibit shows the
developable areas in the sites existing condition. The 2.35 acres that are
hatched is an approximate area we are able to unlock with the floodplain and
stewart creek improvements.
3) The stream still handles runoff and discharge and rather than runoff be collected in a
"sterile" pipe and move downstream, some remediation is possible
a. Rerouting the stream is likely the best scenario from a stormwater quality
perspective. We will be reducing the impervious mixing with this stream water
in actuality.
4) The site is already level, I am not sure how this area is needed other than a place for fill
dirt.
a. Attached red are cut areas blue are fill areas. The building footprints are a little
different as the architect has helped truth them up.
5) Low quality stream is better than no stream. Like low quality housing is better than no
housing. Being a bit snarky, but the point is, it is still a natural feature and continuing to
fill, and the reason is low quality/function is not a strong reason. Piping a stream still has
an impact on the stream.
a. The stream is currently piped under the existing paving field. There is a large
sink hole in the center of the site that has exposed stormwater pipes and
sanitary sewer pipes. (Per our discussion earlier, please find the attached
photos of the "pit").
b. Re-routing the stream around the site in my opinion is better from a water
quality standpoint and will help prevent accidental mixes of the brown stuff
with the water.
6) Maybe the city will give a variance on building height? To allow more floors for retail
and housing?
a. We cannot go higher with any structures that would affect the visual integrity of
the National Register -listed Mill, per NCSHPO.
b. Any additional height also changes the construction type which dramatically
increases costs associated with construction.
7) Are they collecting upgrading runoff (that the channel handles) and treating it?
a. The plan is to permanently bypass the stormwater and treat impervious areas
onsite for the additional stormwater flows.
R. Blake Day, P.E. (NC, SC, TX)
Kimley-Horn 1 200 South Tryon Street, Suite 200, Charlotte, NC 28202
Direct: [phone] 'Mobile: [phone] Main: [phone]
Celebrating 13 years as one of FORTUNE's 100 Best Companies to Work For
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2

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From: Johnson, Alan <[e-mail]>
Sent: Tuesday, May 11, 2021 3:25 PM
To: Tinklenberg, Chris <[e-mail]>
Cc: Roden Reynolds, Bryan K CIV (USA) <[e-mail]>; Perez, Douglas J
<[e-mail]>
Subject: RE: [External] RE: Savona DWR # 20-1685, SAW 2020-02248
1) The stream is there, so that should go into the process of deliberating whether a project
is viable or not with the area of concern. I find it hard to believe that one building
affects the entire project. Profit depends on one building.
2) It is approximately a 1.5 acre area, mostly covered in parking and also reduced by
setbacks. The total site is approx. 28 acres. Hard to see how avoidance and
minimization is being met or being considered. The stream still handles runoff and
discharge and rather than runoff be collected in a "sterile" pipe and move downstream,
some remediation is possible
3) The site is already level, I am not sure how this area is needed other than a place for fill
dirt
4) Low quality stream is better than no stream. Like low quality housing is better than no
housing. Being a bit snarky, but the point is, it is still a natural feature and continuing to
fill, and the reason is low quality/function is not a strong reason. Piping a stream still has
an impact on the stream.
5) Maybe the city will give a variance on building height? To allow more floors for retail
and housing?
6) Are they collecting upgrading runoff (that the channel handles) and treating it?
Alan
DWR
DI -vision of Water Resources
Alan D Johnson — Senior Environmental Specialist
NC Dept. of Environment & Natural Resources (NCDENR)
Division of Water Resources - Water Quality Regional Operations
610 East Center Ave., Suite 301, Mooresville, NC 28115
Phone: [phone] Fax: [phone]
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 unless the content is exempt by statute or other regulation.
3

From: Tinklenberg, Chris [mailto:[e-mail]]
Sent: Tuesday, May 11, 2021 1:34 PM
To: Johnson, Alan <[e-mail]>
Cc: Roden Reynolds, Bryan K CIV (USA) <[e-mail]>
Subject: [External] RE: Savona DWR # 20-1685, SAW 2020-02248
CAUTION: External email. Do not click links or open attachments unless you verify. Send all suspicious email as an attachment to
Report Spam.
Hey Alan — in case you missed our correspondence with WRC, I've attached it for reference. Our response discusses
parking including our rezoning request to minimize the required parking for the residential piece from 1:1 to 0.6:1. The
thought is that parking can be shared by both the full-time residence as well as daily patrons of the Mill. This keeps us
completely out of the 100-ft buffer of Stewart Creek and provides the necessary area for the riparian buffer
enhancement and preservation. The parcel immediately to the east of your recommended building location is not part
of this development, so the building would have to be fully within the triangular area, immediately adjacent to Stewart
Creek and within the 100-ft buffer. This would also require additional buffer impacts for infrastructure, i.e. parking, on -
site roadway connections, utilities which just wouldn't work given there's only 50-ft between Stewart Creek and the
adjacent un-owned parcel (see snip below). Additionally, this is area is 5-ft below the base flood elevation.
4

Avoiding the impact by eliminating the building and associated parking would kill the site financially, both from an
engineering/earthwork balance perspective as well as the loss of units for the developer to sell. Please keep in mind,
that while the stream conveys perennial flow, most of the drainage originates from urban runoff and is discharged into
the storm sewer system where it's daylighted for a short section above Turner Avenue and in this particular area in the
northeastern corner of the site. The riparian area is almost exclusively made up of invasive species. From a
quality/functional standpoint, stream function is extremely low.
Let me know if you have any other questions or concerns.
Thanks,
Chris
Chris Tinklenberg, PWS
Kimley-Horn 1200 South Tryon Street, Suite 200, Charlotte, NC 28202
Direct: 704 409 1802 I Mobile: [phone]
From: Johnson, Alan <[e-mail]>
Sent: Tuesday, May 11, 2021 8:49 AM
To: Tinklenberg, Chris <[e-mail]>
Cc: Roden Reynolds, Bryan K CIV (USA) <[e-mail]>
Subject: Savona DWR # 20-1685, SAW 2020-02248
I am concerned that no consideration was given to avoidance and minimization. It appears
that RES 0-1A could easily be moved to the other side of the project area (and associated
parking) or omitted altogether to prevent the ongoing loss of a perennial channel. Much of
the project appears to be made up of parking. Minor reduction is building sq footage could
easily reduce the parking required in this area as well. Part of redevelopment, should include
the redevelopment of natural areas.
5

DWR
Division of Water Resources
Alan D Johnson — Senior Environmental Specialist
NC Dept. of Environment & Natural Resources (NCDENR)
Division of Water Resources - Water Quality Regional Operations
610 East Center Ave., Suite 301, Mooresville, NC 28115
Phone: [phone] Fax: [phone]
6

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 unless the content is exempt by statute or other regulation.

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EX-3
-iis document, together with the concepts and designs presented herein, as an instrument of service, is intended only for the specific purpose and client for which it was prepared. Reuse of and improper reliance on this document without written authorization and adaptation by Kimley—Horn and Associates, Inc. shall be without liability to Kimley—Horn and Associates, Inc.

Elevations Table
Number
Minimum Elevation
Maximum Elevation
Area
Color
1
—20.00
—15.00
10942.78
2
—15.00
—10.00
23015.42
3
—10.00
—5.00
102509.78
4
—5.00
—0.50
247633.41
5
—0.50
0.50
136645.10
6
0.50
5.00
333359.66
7
5.00
10.00
125111.67
8
10.00
15.00
3823.70
9
15.00
20.00
2.17