HomeMy WebLinkAboutWPO202100046 Review Comments WPO VSMP 2023-10-04�.i OF AL8
County of Albemarle
m COMMUNITY DEVELOPMENT DEPARTMENT
VSMP Permit Plan Review
Project title:
Barnes Lumber
Project file number:
WPO202100046
Plan preparer:
Clint Shifflett [clint.shifflett@timmons.com]
Owner or rep.:
Frank Stoner [fstoner@milestonepartners.co]
Plan received date:
Aug. 12, 2021
Aug. 19, 2022
Date of comments:
Sept. 13, 2021
Oct. 4, 2022 (Rev. 1)
Reviewer:
David James [djames2@albemarle.org]
401 McIntire Road, North Wing
Charlottesville, VA 22902-4579
Telephone: 434- 2 9 6 - 58 32
WWW.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/approved.
The rationale is given in the comments below. 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. Please complete the Registration Statement. (Rev.1) Not addressed. Acknowledged,
please complete prior to approval.
2. ter when obtained, (Rev.1) Acknowledged, please
complete prior to pre -con request.
3. erway and list TM (Rev.1) Addressed.
4. Section 9 - Sign &date Signed Certification. (Rev.1) Not addressed. Acknowledged,
please complete prior to approval.
5. delegating authors (Rev.1) Acknowledged, please complete
prior to pre -con request.
B. Pollution Prevention Plan (PPP)
The PPP content requirements can be found in County Code section 17-404.
1. Update with revision changes. (Rev.1) Acknowledged.
C. Stormwater Management Plan (SWMP)
VSMP Regulation 9VAC25-870-108 requires the VSMP authority to approve or disapprove a
SWMP. This plan is denied, 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. Provide pre -/post- land cover map showing percentage of each land cover. (Rev.1)
Addressed.
Engineering Review Comments
Page 2 of 5
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2. Address potential drainage issue: V/ 1O FOR Tr
(Rev.1) Addressed.
3. There are a few long ditches created please identity & provide ditch design (table).
a. Show drainage area, slope/profile, cross-section showing geometry, 2410-yr
levels, liner type needed/provided.
(Rev.1) Addressed.
4. Sheet 7(1) - Longer flow paths that should be considered that begin at the upper
elevation of drainage area.
a. The drainage areas, CN values, etc. need to match those shown in the calcs, vice -
versa.
--------------------------
- r
r
r
------
(Rev.1) Addressed.
5. Sheet 7(3) -
a. Provide slope, length & type information of barrel.
b. Provide trash rack and detail over bottom orifice.
(Rev.1) Addressed.
6. Design Calculations -
a. Verify NOAA 24-hr precipitation values are correct.
b. Provide post -development map of these areas. Do these areas match up with
Engineering Review Comments
Page 3 of 5
what's shown on Sheet 7(2)?
(Rev.1) Addressed.
7. Provide inlet shaping (IS-1) in any drainage inlet structure with 4' or greater drop.
(Rev.1) Addressed.
8. Provide safety slab (SL-1) in any drainage structure taller than 12'.
(Rev.1) Addressed.
9. Sheet 8(1) - Provide end wall (EW-1) for 48" dia. pipe.
(Rev.1) Addressed.
10. Show the HGL in the storm profiles.
(Rev.1) Addressed. See comment #15.
11. Retaining wall must be located outside of SWM facility easement.
(Rev.1) Acknowledged; N/A.
12. Provide forebays/gabion weir for detention pond.
(Rev.1) Acknowledged; N/A.
13. There appears to be disturbance in the 100' stream buffer that will need to be mitigated.
(Rev.1) Acknowledged.
14. Please provide approval/acceptance by VDOT if this pond is to be maintained by VDOT
and not with the County.
(Rev.1) Acknowledged; N/A.
15. (Rev.1) Sheet 8(1) -
a. Add a note or callout(s) to provide water -tight fittings at pipe joint connections
where the HGL is above the pipes (i.e. under pressure).
b. Add note or callout(s) to provide water -tight fittings where pipes of dissimilar
materials connect.
D. Mitigation Plan (MP)
The mitigation plan requirements can be found in County Code Chapter 17-406.
1. Submit plan for review. (Rev.1) Addressed.
2. (Rev.1) The mitigation area is 100' from the edge of stream (50' shown), see County GIS.
E. Erosion and Sediment Control Plan (ESCP)
Virginia Code §62.1-44.15:55 requires the VESCP authority to approve or disapprove an ESCP.
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. Please add the WPO# to title sheet. (Rev.1) Addressed.
2. Sheets 2 through can be removed. Keep the notes. (Rev.1) Acknowledged.
3. Existing Conditions Sheets -Show the 100' stream buffer accurately. (Rev.1) Not
addressed. It's 100' from stream edge. Refer to County GIS.
4. E&SC Sheets -
a. Please include all demo activities in your limits of disturbance. (Rev.1)
Acknowledged.
b. Provide CRS (VADEQ E&SC Spec. No. 3.03) or DC (VADEQ E&SC Spec. No. 3.39)
for the roads. (Rev.1) Acknowledged.
c. Show OP symbol at barrel end outfall. (Rev.1) Acknowledged.
d. Provide CIP & OP here:
SCALE 1*-W
(Rev.1) Acknowledged.
e. Add TP or adjust LOD line:
i. Identify area (landscaping?)
Engineering Review Comments
Page 4 of 5
(Rev.1) Acknowledged.
f. Add a baffle for phase II Sediment Basin to prevent short-circuiting. (Rev.1)
Acknowledged.
5. Determine if anti -vortex is needed for SB and if so provide detail. (Rev.1)
Acknowledged.
6. Please correct the amount disturbed in your LOD. 18.10 ac & 18.64 ac are shown on the
plans. (Rev.1) Acknowledged.
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 Review Comments
Page 5 of 5
Engineering plan review staff are available from 2-4 PM on Thursdays, should you require a
meeting to discuss this review.
Process:
After approval, erosion and sediment control and stormwater management improvements must
be bonded. The bonding process begins when the plan is approved, and the applicant submits a
bond estimate request form and fee to the Department of Community Development. A plan
reviewer will prepare estimates and check parcel and easement information based on the
approved plans. The County's Management Analyst will prepare bond agreement forms, which
will need to be completed by the owner and submitted along with cash, certificates or sureties
for the amounts specified. The agreements will need to be approved and signed by the County
Attorney and County Engineer. This may take 2-4 weeks to obtain all the correct signatures and
forms.
Stormwater Management Facilities Maintenance agreements will also need to be completed and
recorded. The County's Management Analyst or other staff will prepare the forms and check for
ownership and signature information. The completed forms will need to be submitted to the
County, who will record the agreement.
After bonding and agreements are complete, county staff enters project information in a DEQ
database for state application processing, if a DEQ permit is required. DEQ reviews 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, which must be posted at the construction site.
After DEQ coverage is issued, via the coverage letter, the County can hold a pre -construction
conference. Applicants must 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;
https://www.albemarle.org/government/commun ity-development/apply-for/engineeri ng-applications