HomeMy WebLinkAboutWPO201600073 Review Comments WPO VSMP 2017-10-23COUNTY 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: LIDL — 1248 Richmond Rd
Project file number: WP0201600073
Plan preparer: Timmons Group [craig.kotarski@timmons.com]
Owner or rep.: LIDL US, LLC [Andrew.gartrell@lidl.us]
Plan received date: 21 Nov 2016
Rev. 1 received date: 05 Jul 2017
Rev. 2 received date:
21 Sept 2017
Date of comments:
20 Dec 2016
Rev. 1 comments:
03 Aug 2017
Rev. 2 comments:
23 Oct 2017
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. Per County Code Section 17-405 A. 1, please provide a signed copy of the registration statement.
Rev. 1: Comment not addressed. Rev. 2: Comment not addressed.
2. Be sure to update the E&S and SWM sheets if any changes are made. Rev. 1: Comment still valid.
Rev. 2: Comment still valid.
3. Sections 8 & 10 did not have any contact information. Please provide the information or make a
note that it will be provided by the contractor at a later date. Rev. 1: Comment not addressed. Rev.
2: Comment not addressed.
4. Please ensure that Section 9, Signed Certification, is actually signed. Rev. 1: Comment not
addressed. Rev. 2: Comment not addressed.
B. Pollution Prevention Plan (PPP)
The PPP content requirements can be found in County Code section 17-404.
Provide a copy of a plan showing the PP elements. Ensure that all PP elements are shown on this
plan (staging/stockpile areas, washout areas, sanitary facilities, etc). Rev. 1: Comment addressed.
Please be sure to submit a copy of the PPP for the SWPPP. Rev. 2: Comment not addressed.
C. Stormwater Management Plan (SWMP)
Engineering Review Comments
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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. The County recommends you wait to resubmit this plan until you receive Initial Site Plan approval.
Rev. 1: Comment addressed.
2. Please change the title of the plan from Initial Site Plan to VSMP Plan. Rev. 1: Comment
addressed.
3. Please add a note or explain in the narrative why the existing conditions on Sheet C2.0 do not
match predevelopment conditions on Sheet C6.1. Rev. 1: Comment addressed.
4. The Energy Balance requirement cannot be waived for the north outfall. The County suggests you
look at B.1. and B.4. of 9VAC25-870-66 for channel protection. Rev. 1: Comment addressed.
5. County GIS shows steep slope overlays and 100 yr. floodplain on this site. Please show them on
the plan. Rev. 1: Comment addressed, however, there is an open channel proposed in the
preserved slopes. This is not permitted. You can pipe it through the preserved slopes as a
distribution facility (per County Code 30.7.4), but you cannot grade and create the open channel.
Rev. 2: Per a site visit/inspection with the county engineer, the proposed outfall location is
not an adequate channel. Please extend the proposed storm pipe to where the 1%
requirement is met. Provide a drainage area map showing the 1% is met. Also, storm
easement must be provided for pipe of the right-of-way.
6. Please review pipe nos. 203 and 241. The design computations differ from the profiles. Rev. 1:
Comment addressed.
7. Double check inlet nos. 212 and 240. The lengths in the computations differ from the profiles.
Rev. 1: Comment addressed.
8. Please add a note to ensure that there will be inlet shaping on any structure with a 4' or greater
drop and safety slabs in any structure taller than 12'. Rev. 1: Comment addressed.
9. Please provide maintenance notes for SWM pond. Example: Section 9.2 of BMP Design Spec
No. 15. Rev. 1: Comment addressed.
10. Rev. 1: Provide storm sewer and inlet calculations for entire storm system, not only those in the
right-of-way. Also, provide drainage divides to each structure. Rev. 2: Drainage divides not
provided.
11. Rev. 1: Provide entire water quality VRRM re -development summary worksheets. Ensure they are
legible. Identify the total amount of nutrient credits that must be purchased. Rev. 2: Spreadsheet
now legible and credits shown. However, the numbers in the VRRM spreadsheet do not
match the drainage divides shown on sheet C5.3. Please explain.
12. Rev. 1: The velocities and slopes from structure IF to the north outfall are very high and steep.
Per the VDOT drainage manual, section 9.4.8.7, velocities in excess of 10ft/s should be avoided.
Please revise and reduce velocities as much as possible. Rev. 2: Per discussions and meeting,
comment addressed. Velocities will be kept below 20 ft/s.
13. Rev. 1: In the pipe results table, element ID 2AB shows a peak flow higher than the design
capacity. Please explain. Rev. 2: Comment addressed.
14. Rev. 1: Show that the pipes from Ex. 3C to the north outfall have the capacity for the proposed
stormwater. Total drainage should include area from structures, 3E, 3D and the existing upstream
pipes and structures. Rev. 2: Comment addressed.
15. Rev. 1: Will a transformer pad be necessary on site? If so, please show the proposed location. Rev
2: Comment addressed.
D. 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 approved, and the reasons are provided in the comments below. The erosion control
Engineering Review Comments
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plan content requirements can be found in County Code section 17-402.
1. Per Section 3 of the County Design Standards Manual, a paved wash rack is required. Please note
it on the plans and provide a detail. A detail is provided in the manual. Rev. 1: Comment
addressed.
2. The silt fence on the NW side of the site is inappropriate. It crosses contours and is in the middle
of the disturbed area for Phase II. The County suggests the use of a diversion dike and right-of-
way diversion to a sediment trap in the western corner of the site. The silt fence at that western
corner of the site appears inadequate (1/4 AC drainage area per 100 ft of silt fence). Rev. 1:
Comment addressed.
3. There should be some perimeter controls on the northern end of the site (downstream from the
basin) for both Phase I & Il. Rev. 1: Comment addressed.
4. Provide E&S sediment trap/basin design calculations and details. Rev. 1: Comment addressed.
5. In Phase lI, provide silt fence at the entrance along Rt. 250 to contain any sediment and prevent
vehicular access from the new entrance since it is not a construction entrance. Rev. 1: Comment
addressed.
6. Provide outlet protection for STR 100. Rev. 1: Comment addressed.
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.
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 along with court recording fees.
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
Engineering Review Comments
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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;
htip://www.albemarle.org/deptfomis.asp?department=cdeng)Uo
File: WP0201600073 LIDL-1248 Richmond Rd