HomeMy WebLinkAboutWPO201800080 Review Comments WPO VSMP 2018-12-07�OF Aign.
COUNTY OF ALBEMARLE
ah 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:
Brookhill Block 8B
Project file number:
WP0201800080
Plan preparer:
Collins Engineering — Scott Collins [scott@collins-engineering.com]
Owner or rep.:
Riverbend Development — Alan Taylor [alan@riverbenddev.com]
Plan received date:
29 Oct 2018
Date of comments:
30 Nov 2018
Reviewers:
Emily Cox
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. SWPPP was not provided with this submission. Provide two copies of a SWPPP. If overall
Brookhill SWPPP is to be used, provide updated registration statement and an overall sheet
showing disturbed area covered by the registration statement.
B. Pollution Prevention Plan (PPP)
The PPP content requirements can be found in County Code section 17-404.
1. PPP was not provided with this submission. Provide two copies of a PPP and ensure it contains
everything as outlined in County Code section 17-404. If E&S plan is intended to be used for PPP,
ensure it shows all requirements and provide a note.
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. Professional seal must be signed and dated.
2. Stormwater management must incorporate approved WPO Plans: WP0201700027,
WP0201700037 and WP0201800013. These plans have an approved pond, pond 10, on this site
as well as a proposed level spreader at the outfall. The grading and storm pipes from these
approved plans should be shown as existing conditions on this application. A narrative should be
provided to show how your plans revise/remove this pond and still meet requirements. The
drainage area that was sent to approved Pond 10 must be collected on this application. Pipes
shown as existing must match the approved plans.
Engineering Review Comments
Page 2 of 3
3. The Overall Brookhill Stormwater Quality Compliance Table must be updated and provided with
this application. The land in this application was part of an already approved treatment train for the
Brookhill Development. A narrative must be provided to explain how this application will comply
with the overall, approved plan.
4. Label the buffer as proposed greenway per the approved ZMA.
5. Provide approved FDP permit # and CLOMR.
6. Show easements as shown on SUB201800187. If these are recorded, show the deed book and
page #. Plat is currently under review at County Attorney's office.
7. Per page 19 of the Code of Development, the Brookhill Historic buffer shall be natural and
undisturbed. Please revise grading to be outside of the 20ft historic buffer.
8. [Sheet 2]: Sheet 2 notes that SDP201700117 is under review. It is SUB201700117 and it is
approved.
9. Please provide the following document on the plans:
htip://www.albemarle.org/upload/images/forms_center/departments/Community Development/for
ms/Engineering_ and _WPO_Forms/WPO_VSMP_Construction _ Record_ Drawings Policy 23May
2014.pdf
10. [Calculations packet] In section B.3.a, what is Q dev? Show that it is less than the calculation for
the energy balance.
11. [Calculations packet] In Section C.2.b, show the pre-dev and post-dev numbers to compare and
show compliance.
12. [Sheet 2] Please label the approved plan # and not just state "under different set of plans"
13. Graphic scale is not measuring correctly throughout the plans. Please revise. Note that grading
could not be accurately measured without a scale. It appears that certain areas are steeper than 2:1.
14. Ensure this TMP is covered by the existing SWM maintenance agreement. Otherwise, a SWM
maintenance agreement will be necessary before plan approval.
D. Erosion and Sediment Control Plan (ESOP)
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. [Sheet 3]: Ensure detail and notes for construction entrance match the design standards manual,
page 8.
http://www.albemarle.org/upload/images/forms_center/departments/community development/for
ms/design standards _manual/Albemarle _ County Design Standards_Manual _2015-04-
25_draft.pdf
2. Please clearly show limits of disturbance vs property line vs buffer lines vs drainage divide lines. It
is unclear in some locations.
3. [Sheet 4]: ACSA plans are referenced. Please provide approved plan #.
4. [Sheet 4]: Limits of disturbance at property line (disturbing the 20 ft historic buffer?)
5. [Sheet 4] ST #1 DA does not appear to include the existing pipe that is outfalls toward ST #1. It
must be sized to handle all of the flow or diverted away from the trap.
6. [Sheet 4] ST #1 appears to outfall onto the sidewalk with no perimeter controls. Please revise.
7. [Sheet 4] What is the DA to SB 1? One sheet says 8 and the other says 8.65.
8. [Sheet 4] What is the shape in the eastern end of the site wrapped in silt fence? Wetlands? Please
label.
9. [Sheet 5] One inlet on the northern end is missing protection.
10. [Sheet 7] Easement should be SWM facility easement, not SWM & access easement.
11. Provide top and bottom elevations of retaining walls. Must follow code of development maximum
Engineering Review Comments
Page 3 of 3
height of 6ft and provide details. Must also follow steep slopes overlay requirements where
applicable.
12. Tree protection fencing should be on the inside of the historic buffer, not outside of the property
line.
13. [Sheets 4 & 5] Show outlet protection sizing and dimensions, not just OP symbol.
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 approval, plans will need to be bonded. The bonding process is begun by submitting a bond estimate
request form and fee to the Department of Community Development. One of the plan reviewers 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.
After bonding and 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;
hlt2://www.albemarle.org/deptforms.asp?department--cdenano