HomeMy WebLinkAboutWPO201800084 Review Comments Appeal to BOS 2019-02-06COUNTY OF ALBEMARLE
Department of Community Development
401 McIntire Road, Room 227
Charlottesville, Virginia 22902-4596
Phone (434) 296-5832 Fax (434) 972-4126
Project title:
Project file number:
Plan preparer:
Owner or rep.:
Plan received date:
Plan received date:
Date of comments:
Date of comments:
Reviewer:
VSMP Permit Plan Review
Royal Fern Phase 2
WP0201800084
Shimp Engineering, Justin Shimp, P.E.
justin@shimp-engineering.com
Land Striker, LLC
15 November 2018
22 January 2019 (Rev. 1)
29 November 2018
06 February 2019 (Rev. 1)
WW Associates, Inc.
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 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. The SWPPP was not found with this submittal. Please provide SWPPP.
Rev. 1 Comments
1. SWPP Section 2 — Please provide a copy of the DEQ coverage letter when obtained.
2. SWPP Section 8 — Please provide name of qualified person and other requested
information.
3. SWPP Section 10 — Per 9VAC25-880-70 Part K, please provide the person with the
authority to sign inspection reports or to modify the stormwater pollution
prevention plan.
B. Pollution Prevention Plan (PPP)
The PPP content requirements can be found in County Code section 17-404.
1. The PPP exhibit will need to be included in the SWPPP.
Rev. 1: Comment addressed.
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. The 3.18 lbs/yr of nutrient credits will need to be purchased prior to plan approval. Please contact
Engineering Review Comments
Page 2 of 4
Ana Kilmer before purchasing the credits.
Rev. 1: Comment will need to be addressed prior to plan approval.
2. Please provide a signed and dated engineers seal on the calculations package.
Rev. 1: Comment not addressed. No calculations package provided with resubmittal.
3. Show existing storm sewer pipe below the point of analysis at Wahoo Way.
Rev. 1: Comment addressed.
4. Provide calculations to demonstrate adequacy of existing storm sewer pipe below the point of
analysis at Wahoo Way.
Rev. 1: Comment not addressed. No calculations package provided with resubmittal.
5. Please add the Albemarle County General Construction Notes for Stormwater Management Plans.
Rev. 1: Comment addressed.
6. Please show time of concentration flow paths on all drainage area maps.
Rev. 1: Comment not addressed. No calculations package provided with resubmittal.
7. Provide time of concentration calculations as part of the calculations package.
Rev. 1: Comment not addressed. No calculations package provided with resubmittal.
8. Provide pretreatment at the outfalls of all pipes prior to discharging to biofilters.
Rev. 1: Comment addressed.
9. Provide underdrains in all the proposed biofilters.
Rev. 1: Comment addressed.
10. Biofilter underdrains shall have a minimum diameter of 6" in accordance with DEQ stormwater
design specification No. 9.
Rev. 1: Comment addressed.
11. Please show the biofilter underdrains in the plan view to ensure that they do not conflict with the
proposed landscaping.
Rev. 1: Comment addressed.
12. Please label the proposed biofilter landscaping in the plan views.
Rev. 1: Comment addressed.
13. Please label the stormwater maintenance easements on the proposed biofilters and underground
detention.
Rev. 1: Comment not addressed. Labels have been provided for the proposed utilities.
Please label the stormwater maintenance easements on the proposed biofilters and
underground detention.
14. A Stormwater Maintenance Facility Agreement must be recorded for the proposed biofilters prior
to plan approval.
Rev. 1: Comment will need to be addressed prior to plan approval.
15. The calculations for Ditch 9 indicate an allowable velocity of 4.00 ft/sec for the specified lining
but show a calculated velocity of 4.15 ft/sec. Please update the calculations.
Rev. 1: Comment not addressed. No calculations package provided with resubmittal.
16. Please provide calculations showing adequacy of downstream pond on Cavalier Crossing
property (TMP 76-54A1).
17. Please note that additional comments may be generated based on the response to the
comments provided.
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 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 WPO201800084 to the cover sheet of the plans, calculations, and SWPPP.
Rev. 1: Comment partially addressed. No calculations package provided with resubmittal.
2. Please provide a signed and dated engineers seal on the calculations package.
Engineering Review Comments
Page 3 of 4
Rev. 1: Comment not addressed. No calculations package provided with resubmittal.
3. A VDOT Land Use Permit will be required prior to construction for the work shown within the
VDOT right-of-way along State Route 780 (Old Lynchburg Road) and State Route 631 (5tn
Street).
Rev. 1: Comment noted by applicant.
4. A temporary construction easement will be required prior to plan approval for the work shown on
the adjacent property along Wahoo Way.
Rev. 1: Comment addressed.
5. Provide culvert inlet protection on the existing 36" storm at the intersection of Wahoo Way and
5t' Street during "Perimeter Controls" phase to protect downstream storm sewer system prior to
construction of new storm sewer.
Rev. 1: Comment addressed.
6. Provide outlet protection for the sediment basin outfall pipe.
Rev. 1: Comment addressed.
7. Please add a soil stockpile location to the plans.
Rev. 1: Comment addressed.
8. Please provide Contractor's staging and parking areas.
Rev. 1: Comment addressed.
9. Provide a drainage area map for the proposed sediment trap and basin.
Rev. 1: Comment addressed.
10. Please show time of concentration flow paths on all drainage area maps.
Rev. 1: Comment not addressed. No calculations package provided with resubmittal.
11. Provide time of concentration calculations as part of the calculations package.
Rev. 1: Comment not addressed. Provide time of concentration calculations for the
sediment basin as part of the calculations package provided with resubmittal.
12. Identify the party responsible for land disturbance on the plans.
Rev. 1: Comment addressed.
13. Provide calculations to verify that the 2:1 length:width flow path ratio requirement is met for the
proposed sediment trap.
Rev. 1: Comment addressed.
14. Please note that additional comments may be generated based on the response to the
comments provided.
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.
Please coordinate nutrient credit purchase with the County's Management Analysis prior to purchase.
Evidence of a purchase of necessary nutrient credit is required prior to applicant receiving a grading
Engineering Review Comments
Page 4 of 4
permit.
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
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;
htti)://www.albemarle.ora/dei)tforms.asi)?del)artment=cden2woo
File: WPO201800084 Royal Fern Phase 2 11-27-18.docx