HomeMy WebLinkAboutWPO201700070 Review Comments WPO VSMP 2019-03-05COUNTY OF ALBEMARLE
Department of Community Development
401 McIntire Road, Room 227
Charlottesville, Virginia 22902-4596
Phone (434) 296-5832 Fax (434) 972-4126
VSMP Permit plan review
Project title: Albemarle County Route 250 Business (Ivy Road) Sidewalk
Project file number: WP0201700070
Plan preparer: Brian McPeters [brian.mcpeters@kimley-horn.com]
Owner or rep.: Jack Kelsey Ukelsey@albemarle.org]
Plan received date: September 25, 2017
(Rev. 1) 28 Jan 2019
Date of comments: October 27, 2017
(Rev. 1) 5 Mar 2019
Reviewer: David James /Initial review [dames2galbemarle.org]; J. Anderson /Rev. 1
County Code section 17-410 and Virginia Code §62.1-44.15:34 requires the VSMP authority to act on
any VSMP permit by issuing a project approval or denial. This project is denied. The rationale is
given in the comments below. The application may be resubmitted for approval if all of the items
below are satisfactorily addressed. The VSMP application content requirements can be found in
County Code section 17-401.
A. Stormwater Pollution Prevention Plan (SWPPP)
The SWPPP content requirements can be found in County Code section 17-405. A SWPPP must
contain (1) a PPP, (2) an ESCP, (3) a SWMP, and (4) any TMDL measures necessary.
1. Provide a SWPPP including registration statement. (Rev. 1) Not addressed. Please provide
SWPPP at earliest convenience. Use county template; link:
htW://www.albemarle.orgLunload/images/forms center/departments/Community Development/forms/Engi
neerina and _WPO_Forms/Stormwater _Pollution _Prevention _Plan _SWPPP _template.pdf
B. Pollution Prevention Plan (PPP)
The PPP content requirements can be found in County Code section 17-404.
1. Provide a PPP. (Rev. 1) Not addressed. Please include PPP Exhibit with SWPPP.
C. Stormwater Management Plan (SWMP)
VSMP Regulation 9VAC25-870-108 requires the VSMP authority to approve or disapprove a SWMP.
This plan is disapproved for reasons listed in comments, below. The stormwater management plan
content requirements can be found in County Code section 17-403.
1. Cover Sheet — Change application number to WP0201700070; Update box with nutrient credit
purchase information when acquired; Include source & date of topographic information, and last date
of field verification of existing site conditions; missing survey date on sidebar. (Rev. 1) Partially
addressed. As follow-up, please revise ref. to `purchasing 0.78 lbs. phosphorus from xxx Nutrient
Bank on xx/xx/xxxx' to read from `Gold Hill Nutrient Credit Offset Bank on 02/05/2019.' (Ref.
image, sheet 1, below.)
Engineering Review Comments
Page 2 of 3
FOR INDEX OF SHEETS SEE SHEET 1A
THIS PROJECT WAS DEVELOPED UTILIZING THE VDOT'S ENGINEERING
DESIGN PACKAGE (GEOPAK).
GEOPAK Computer Identification No. 105806 ALBEMARLE 001
CxESA-EME BAr PRESERVATOV MOPUMCE
1111F'1XM! X ll M1rPoPUICENr &YY1f M' xx/x!/PYXPLAN
ALBEMARLE COUNTY VSMP APPLICATION - WP0201700070
2. Who will be responsible for the maintenance of underground detention SWM facilities? (Rev. 1)
Comment withdrawn. SWM facility eliminated per review meeting, 2/14/19 (Jack Kelsey, Frank
Pohl, J. Anderson). UG detention is not required (sheets 3, 3D, 6(4), etc.) if runoff conveyed via man-
made channel to 1% point of analysis. Engineering to confirm design meets 9VAC25-870-66.B.1./4.
3. Show that the channel (ditch) at Outfall A will be non -erosive when meeting 2-yr design, velocity is
15.36 (fps) and considered excessive (>: s). (Rev. 1) Not addressed; Also, item 2, above. At 2/14
meeting, Engineering and PMD discussed ditch maintenance, soil stabilization blankets /matting
(VESCH 3.36), etc. Engineering to confirm revised design (final submittal) meets 9VAC25-870-
663.1./4., that final design 2-3r, 24-hour event velocities are non -erosive.
Ref. table sheet I W O:
WATER QUANTITY SUMMARY
Stormwater Outfall Table
Site Area jAcres)
1.93
Outfall A
Outfall B
Drainage Area From Site (Acres)
0.6950
1.2344
Overall Draina a Area (Acres)
69.D8
70.81
Drainage Area to Existing Detention
Systems (Acres)
9.94
3.02
Runoff Reduction (cf)
0
0
Receiving Channel Type (Natural,
Restored, or Manmade(
Manmade
Manmade
Channel Protection Compliance Method
Non -Erosive
Non -Erosive
Flood Protection Compliance Method
l0 rCLDfl 1.; <16yrQN, g
10-yrQD—bW<10-yrCtF.1.,,
2-year
10-year
2-year
10-year
VE;:dB(ft/5)
15.32
N/A
14.49
N/A
VDT 41�d(ft/s)
15.42
N/A
14,49
N/A
VAiI�.d (ft/s)
N/A
N/A
N/A
N/A
C1F,ds,br (CFS)
N/A
1 143.96
1 N/A
j 81.55
QD—kMel(CFS)
N/A
143.85
N/A
79.90
QA&.cd (CFS)
N/A
143.96
N/A
81.55
NOTE: All calculations are computed using the rational method due to the site area discharging into existing
manmade stormsewer systems. The calculations account forthe overall drainage area reachingeach outfall.
Drainage areas that are assumed to drain to existing detention systems are excluded from the water
quantity calculations.
NOTE: Proposed detention pipes are used to reduce the 10-yr Q (cfs) in the pipes downstream of the
proposed storm sewer improvements.
15.42 fps is erosive per VESCH, 31 Edit., 1992, Std. & Spec. 3.36 /P. III-357: "Treatment-1 is a
degradable soil stabilization blanket ...During the establishment of vegetation, Treatment-1 should
Engineering Review Comments
Page 3 of 3
not be subjected to shallow or deep concentrated flow moving at greater than 4 feet/second." Then:
"Since Treatment-2 is non -degradable, it can be used in permanent conveyance channels, and can
withstand higher velocities of flow than the vegetation and soil would normally allow. However, a 10
feet/second velocity of flow should be the maximum allowed in a conveyance system which utilizes
Treatment-2." (p. III-358)
4. Contact Ana Kilmer regarding nutrient credit purchase & agreement. Plan cannot be approved
without nutrient purchase agreement. (Rev. 1) Addressed. Ref, A. Kilmer email (2/27/2019 9:56
AM) "FES has paid for the credits."; and, Dahris Garcia email (February 27, 2019 9:52 AM) "This
was paid on 2/21/19 via check number 200175667."
5. New: Sheet 1H(1) Water Quality and Quantity data sheet: Provide narrative discussing man-made
conveyance capacity to convey the post -development peak flow rate from a two-year 24-hour storm
event without causing erosion of the system. Include capacity and condition of roadside ditch (Ivy
Rd.-Rt. 250) to 1% limits of analysis. Transportation Engineer may provide further coordinating
details to KHA.
6. New: Revise match -line references, sheets 3D and 3E.
D. Erosion and Sediment Control Plan (ESOP)
Virginia Code §62.1-44.15:55 requires the VESCP authority to approve or disapprove an ESOP. This
plan is approved.
1. Remove Roadway Plan including road profiles/sections from this set. (Rev. 1) Partially addressed.
As follow-up: Please remove driveway and Ivy Road (Route 250) profiles from VSMP /WPO Plan set.
2. Provide a soils map &description. Show existing conditions sheet (easements deed bk/pg, critical
slopes, etc.). (Rev. 1) Request for soils map withdrawn; unnecessary given project corridor.
Existing conditions shown in sufficient detail across multiple plan sheets.
The VSMP permit application and all plans may be resubmitted for approval when all comments have been
satisfactorily addressed. For re -submittals please provide 2 copies of the complete permit package with a
completed application form.
Engineering plan review staff are available from 2-4 PM on Thursdays, should you require a meeting to
discuss this review. Please call if any questions. J. Anderson, 434.296-5832 -0069
Process;
After agreements are complete, county staff will need to enter project information in a DEQ database for state
application processing. DEQ will review the application information based on local VSMP authority approval.
At this time, the DEQ portion of the application fees will need to be paid directly to the state. For fastest
processing, this is done electronically with the emails provided on the application. DEQ should notify
applicants with instructions on how to pay fees. When DEQ approves the application, they will issue a permit
coverage letter. This should be copied to the county.
After DEQ coverage is issued, via the coverage letter, the County can hold a pre -construction conference.
Applicants will need to complete the request for a pre -construction conference form, and pay the remainder of
the application fee. The form identifies the contractor and responsible land disturber, and the fee remaining to
be paid. This will be checked by county staff, and upon approval, a pre -construction conference will be
scheduled with the County inspector. At the pre -construction conference, should everything proceed
satisfactorily, a joint VSMP and grading permit will be issued by the County so that work may begin.
County forms can be found on the county website forms center under engineering;
http://www.albemarle.org/deptforms.asp?department=cdengmTo
COUNTY OF ALBEMARLE
Department of Community Development
401 McIntire Road, Room 227
Charlottesville, Virginia 22902-4596
Phone (434) 296-5832 Fax (434) 972-4126
VSMP Permit plan review
Project title:
Albemarle County Route 250 Business (Ivy Road) Sidewalk
Project file number:
WP0201700070
Plan preparer:
Brian McPeters [brian.mcpeters@kimley-horn.com]
Owner or rep.:
Jack Kelsey Ukelsey@albemarle.org]
Plan received date:
September 25, 2017
Date of comments:
October 27, 2017
Reviewer:
David James [djames@albemarle.org]
County Code section 17-410 and Virginia Code §62.1-44.15:34 requires the VSMP authority to
act on any VSMP permit by issuing a project approval or denial. This project is denied. The
rationale is given in the comments below. The application may be resubmitted for approval if all
of the items below are satisfactorily addressed. The VSMP application content requirements can
be found in County Code section 17-401.
A. Stormwater Pollution Prevention Plan (SWPPP)
The SWPPP content requirements can be found in County Code section 17-405. A SWPPP must
contain (1) a PPP, (2) an ESCP, (3) a SWMP, and (4) any TMDL measures necessary.
1. Provide a SWPPP including registration statement.
B. Pollution Prevention Plan (PPP)
The PPP content requirements can be found in County Code section 17-404.
1. Provide a PPP.
C. Stormwater Management Plan (SWMP)
VSMP Regulation 9VAC25-870-108 requires the VSMP authority to approve or disapprove a
SWMP. This plan is disapproved, and the reasons are provided in the comments below. The
stormwater management plan content requirements can be found in County Code section 17-403.
1. Cover Sheet — Change application number to WP0201700070; Update box with nutrient
credit purchase information when acquired; Include source & date of topographic
information, and last date of field verification of existing site conditions; missing survey
date on sidebar.
2. Who will be responsible for the maintenance of underground detention SWM facilities?
3. Show that the channel (ditch) at Outfall A will be non -erosive when meeting 2-yr design,
velocity is 15.36 (fps) and considered excessive (>10fps).
4. Contact Ana Kilmer regarding nutrient credit purchase & agreement. Plan cannot be
approved without nutrient purchase agreement.
D. Erosion and Sediment Control Plan (ESCP)
Virginia Code §62.1-44.15:55 requires the VESCP authority to approve or disapprove an ESCP.
Engineering Review Comments
Page 2 of 2
This plan is disapproved, and the reasons are provided in the comments below. The erosion
control plan content requirements can be found in County Code section 17-402.
1. Remove Roadway Plan including road profiles/sections from this set.
2. Provide a soils map &description. Show existing conditions sheet (easements deed bk/pg,
critical slopes, etc.).
The VSMP permit application and all plans may be resubmitted for approval when all comments have
been satisfactorily addressed. For re -submittals please provide 2 copies of the complete permit package
with a completed application form.
Engineering plan review staff are available from 2-4 PM on Thursdays, should you require a meeting to
discuss this review.
Process;
After agreements are complete, county staff will need to enter project information in a DEQ database for
state application processing. DEQ will review the application information based on local VSMP
authority approval. At this time, the DEQ portion of the application fees will need to be paid directly to
the state. For fastest processing, this is done electronically with the emails provided on the application.
DEQ should notify applicants with instructions on how to pay fees. When DEQ approves the application,
they will issue a permit coverage letter. This should be copied to the county.
After DEQ coverage is issued, via the coverage letter, the County can hold a pre -construction conference.
Applicants will need to complete the request for a pre -construction conference form, and pay the
remainder of the application fee. The form identifies the contractor and responsible land disturber, and
the fee remaining to be paid. This will be checked by county staff, and upon approval, a pre -construction
conference will be scheduled with the County inspector. At the pre -construction conference, should
everything proceed satisfactorily, a joint VSMP and grading permit will be issued by the County so that
work may begin.
County forms can be found on the county website forms center under engineering;
h!Ltp://www.albemarle.oriz/deptforms.asp?department=cden�wpo
File: Albemarle County Route 250 Business (Ivy Road) Sidewalk - VSMP.docx