HomeMy WebLinkAboutWPO201900003 Review Comments WPO VSMP 2019-05-24COUNTY 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: Pleasant Green Phase 1
Project file number: WP0201900003
Plan preparer: Collins Engineering [scott@collins-engineering.com]
Owner or rep.: SM Charlottesville LLC
Plan received date: 17 Jane 2019
Rev. 1 received date: 04 March 2019
Rev. 2 received date: 11 April 2019 (Emailed plans and calcualtions)
Rev. 3:
22 May 2019 (emailed plans and calculations)
Date of comments:
11 Feb 2019
Rev. 1 comments:
04 April 2019
Rev. 2 comments:
03 May 2019
Rev. 3 comments:
24 May 2019
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.
**Note that applicant paid $200 with 2nd WPO submission. This was a mistake. This can be
credited towards the bond or pre -con fees.**
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 signed certification (Section 9). Rev. 1: Comment addressed.
2. Provide Operator contact name and email address on registration statement. Rev. 1: Information
not provided. Please list a phone # and email address for the operator. Rev. 2: Comment
not addressed. Rev. 3: Comment still valid.
3. Rev 2: Suggest proving both the old and new DEQ registration statement. The old permits
will expire July 1 and you will need the new form. Let us know if you have questions. Rev.
3: comment still valid. Provide 2014 and 2019 registration statement.
B. Pollution Prevention Plan (PPP)
The PPP content requirements can be found in County Code section 17-404.
1. Ensure entire plan is shown on the PPP, including the outfall. Rev. 1: The PPP exhibit in the
SWPPP does not show the outfall. Rev. 2: Comment not addressed. Rev. 3: Ensure PPP is
inlucded in the SWPPP and includes the outfall.
Engineering Review Comments
Page 2 of 4
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. Where does the concentrated water in the north eastern corner of the site drain to? (subarea B on
sheet 7). Rev. 1: Comment addressed.
2. There is grading outside of subarea A. The change in land cover with this condition must be
addressed for water quality purposes. Rev. 1: These calculations were not provided. An
updated stormwater management calculations packet is necessary. Rev. 2: Comment
addressed as the full 12.37 ac is now included. However, this submission did not include a
drainage area map, so this must be confirmed when final plans are submitted showing the
DA. Rev. 3: Comment addressed.
3. Provide a map showing the areas used for the runoff reduction spreadsheet (5.69 AC turf and 4.04
AC impervious). Total disturbed area is 12.11 AC. Please explain the difference. Rev. 1: Updated
calculations not provided, however, is the VRRM areas match the 12.27 acres, this comment
is addressed. Rev. 2: Comment addressed.
4. The provided one percent exhibit should be inserted as a sheet in the plans. Rev. 1: Comment
addressed.
5. Provide the following on the plans:
hLtp://www.albemarle.ora/upload/images/fortns center/departments/Community_ Development/for
ms/applications/WPO_VSMP _Construction _Record _ Drawings_ Policy_23May2014.pdf Rev. 1:
Comment addressed.
6. SWM facility shall not have 2:1 slopes. Slopes should be designed as outlined in section 6.6:
http s://www. swbmp. vwrrc.vt. edu/wp-content/uploads/2017/ 11 BMP-Spec-No-15_EXT-
DETENTION-POND_v1-9_03012011.pdfRev. 1: Comment addressed.
7. Ensure calculations packet uses the 48" pipe for the outlet protection and rip -rap calculations, not
the 8". Rev. 1: These calculations were not provided. Rev. 2: Comment addressed.
8. Rev. 1: Bioretention ponding depth should be a maximum of 6", not 12". Unless planting
plan is specifically for plants that can withstand being in that much water. Rev. 2: Comment
addressed.
9. Rev. 1: Chinese juniper is not on the recommended list of plants for bioretention. Rev. 2:
Comment addressed.
10. Rev. 2: Do not purchase nutrient credits before contacting Ana Kilmer (434-296-5832 or
akilmer(&albemarle.ort! . Credits must be purchased before plan can be approved. Rev. 3:
Comment still valid.
11. Rev. 3: Need a SWM maintenance agreement. Contact Ana Kilmer, information above.
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. Provide a copy of permit for work in Powell's Creek. Contact Vincent Pero for information. [434-
973-0568 or Vincent.D.Pero(kusace.army.mil] Rev. 1: Comment still valid. Rev. 2: Comment
still valid. Rev. 3: Comment addressed per email dated May 14, 2019.
2. Provide a copy of the flood plain development permit for disturbance and work in the floodplain.
Engineering Review Comments
Page 3 of 4
Rev. 1: Comment still valid. Rev. 2: Comment still valid. Rev. 3: Comment still valid.
3. There is no erosion control shown for the sanitary sewer crossing at the creek. Please clarify if this
is under a different permit. Rev. 1: Comment addressed.
4. Provide deed book and page for all existing easements. There is an "existing buffer easement"
shown on sheet 2. Rev. 1: Comment addressed.
5. Provide a north arrow on the cover sheet. Rev. 1: Comment addressed.
6. Show the limits of clearing and grading on Sheet 2. Rev. 1: Comment addressed.
7. Provide a legend for all linetypes. This includes clearing and grading, drainage divide, property
line, etc. Rev. 1: Comment addressed.
8. [Sheet 4] Why is there a crossing in the middle of the site? Can the existing road be used? It is not
labeled to be removed on Sheet 2. Rev. 1: Comment addressed.
9. [Sheet 4] The diversion dike to St #1 takes a hard turn. Can this be straightened out? Rev. 1:
Comment addressed.
10. [Sheet 5] Provide outlet protection on the water coming into SB #1. Rev. 1: Comment addressed.
11. [Sheet 5] There appears to be a low point in the road inbetween two inlets. Please ensure water
will not pool between the inlets. Show grading spots to ensure drainage. Rev. 1: Comment
addressed.
12. [Sheet 5] Water appears to drain directly towards houses on the eastern side of the site. Please
ensure there is adequate grading to direct water away from the houses. Are there drains in the rear
of the lots? If so, they need inlet protection. Also, if they are supposed to be collecting roof drains
and treating impervious area from the houses, please provide a note on the plans to guarantee the
contractor knows about the roof drains. Rev. 1: Comment addressed.
13. [Sheet 5] There appears to be a proposed channel on the northern end of the site. Please provide a
detail and calculations. Also, show where this oufalls as it is concentrated outfall. Rev. 1:
Comment addressed.
14. [Sheet 6] St #1 does not appear to meet the 2:1 length to width flow path requirement. Rev. 1:
Comment addressed.
15. Provide detail for the anti -vortex device and anti -seep collar. Rev. 1: Comment addressed.
16. [Sheet 7] The quality summary referenced additional areas. Please show on a map. Also, clarify
"Alley A". 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.
Engineering Review Comments
Page 4 of 4
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;
hLtp://www.albemarle.org/deptfonns.asp?department--cdengWpo