HomeMy WebLinkAboutWPO201600052 Review Comments WPO VSMP 2022-03-29� AI
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COUNTY 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: 2300 Hunters Way
Project file number: WP0201600052
Plan prepares
Shimp Engineering, P.C. [keane@shimp-engineering.com]
Owner or rep.:
Heartrock Farm, LLC [kschuyler@cstonellc.com]
Plan received date:
04 Jan 2019
Rev. 1 received:
28 Feb 2022
Date of comments:
01 Feb 2019
Rev. 1 comments:
29 Mar 2022
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. Please provide SWPPP. Template can be found here:
htto://www.albemarle.org/upload/images/forms_center/departments/Community Development/fo
nns/Engineering_and _WPO Forms/Stormwater _Pollution _ Prevention_ Plan_ SWPPP_template.p
df Rev. 1: Comment addressed.
2. Registration statement says total disturbed area is 0.51 AC, however Sheet C2 says 0.64 AC.
Please clarify. Rev. 1: Comment addressed.
3. Rev. 1: Please use the latest registration statement:
httas://www.de(i.vireinia.2ov/home/showpublisheddocument/4972/637534797394100000
4. Rev. 1: Section 9, signed certification, must be signed.
B. Pollution Prevention Plan (PPP)
The PPP content requirements can be found in County Code section 17-404.
1. PPP not provided. Please provide PPP and ensure that all items from 17-404 are included. 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.
Engineering Review Comments
Page 2 of 4
1. [Sheet C 1] Title should be WPO201600052 — Amendment 1. Rev. 1: Comment addressed.
2. Please ensure the following document is included on the plans:
httl2://www.albemarle.ore/upload/images/forms center/departments/Community Development/fo
rms/En ing eering and _WPO_Forms/WPO_VSMP_Construction _ Record_ Drawings Policy 23M
gy20l4.pdf Rev. 1: Comment addressed.
3. [Sheet C8] Provide maintenance requirements for SWM facility. Since orifice is so small (less
than 3") ensure there is an adequate frequency of inspections required to ensure the orifice is not
clogged. Rev. 1: Please change note 2 to be annually, not every 2 years.
4. SWM agreement will need to be executed before plan approval. Contact Ana Kilmer
(akilmer(c�r�,albemarle.org 434-296-5832 ext 3246) to complete this task. Rev. 1: Comment not
addressed.
5. Executed plat showing SWM facility easement along with deed will be necessary before land
disturbance permit can be issued. Rev. 1: Comment not addressed.
6. Nutrient credits must be purchased before land disturbance permit can be issued. Contact Ana
Kilmer (akilmer@albemarle.org 434-296-5832 ext 3246) before purchasing credits. Rev. 1:
Comment not addressed.
7. [Sheet C2 — SWM ] Provide short summary of how regulations are met on the plans. (allowable Q
based on energy balance, proposed Q, credits required & purchased, etc.). Back-up calculations
may be kept in the SW calculation packet. Rev. 1: Comment addressed.
8. [Sheet C3] Is there an existing SWM easement? Provide DB & PG of executed easement plat.
Rev. 1: Comment not addressed.
9. [Sheet C3] County GIS shows critical slopes on this parcel. Per County Code 18-4.2, a waiver is
required for disturbance to these slopes. Please show the slopes on all applicable sheets of the
plan and ensure the limits of clearing are outside of the critical slopes. Rev. 1: Comment
addressed.
10. Provide legend for all hatches on the plan. Rev. 1: Comment addressed.
11. Provide detail for proposed retaining wall. Note that a building permit and engineered design will
be necessary for the retaining wall. Rev. 1: Comment addressed.
12. Retaining wall should be outside of the SWM facility easement. Rev. 1: Comment addressed.
13. [Sheet C6] Suggest moving inlet 4 outside of the wheel path of cars. Rev. 1: Comment
addressed.
14. [Sheet C8] Provide 2nd manhole for access and maintenance at the outfall of the SWM facility.
Rev. 1: Comment addressed.
15. [Sheet C8] Provide larger trash rack that will extend to the top of the weir and cover the weir so
that debris and trash cannot exit the facility. Rev. 1: Comment addressed.
16. [Sheet C8] How will the steel weir plate be secured to the HDPE pipe? Is a junction box
necessary? Rev. 1: Comment addressed.
17. Rev. 1: Please clarify all drainage areas. For example: Det 1= 0.79, but the areas add up to
0.75 and Det 2 =0.15, but your areas add up to 0.20 AC.
18. Rev. 1: Please clarify why the energy balance is only shown for 0.7 acres., not the whole site.
The flow at the point of analysis must be analyzed for everything that flows to that point.
You must show how you meet channel and flood protection for that point.
19. Rev. 1: The predevelopment map only shows open space and impervious, but the legend has
impervious, turf & woods. Please clarify.
20. Rev. 1: Ensure all calculations match drainage areas. For example, the inlet calculations
haven't slightly different DA as shown on the plans.
21. Rev. 1: Please show how the bypass meets DEQ regulations. If it is sheet flow, it must meet
all conditions of 9VAC25-870-66. D.
Engineering Review Comments
Page 3 of 4
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. [Sheet C3] Title should be existing conditions and demolition plan. Rev. 1: Comment
addressed.
2. [Sheet C5] Provide dust control symbol on the plans. It is in the legend, just not in the plans. Rev.
1: Comment addressed.
3. [Sheet C5] Limits of disturbance should be OUTSIDE of silt fence. Please revise limits. Ensure
limits are outside of the critical slopes. See comment #9 above regarding critical slopes. Rev. 1:
Comment addressed.
4. [Sheet C5] Consider clean water diversion along the western property line to keep clean
water offsite. Rev. 1: Ensure CWD does not cause concentrated runoff/erosion at its outlet.
5. [Sheet C5] Extend silt fence along eastern edge of property up to the construction entrance. Rev.
1: Comment addressed.
6. [Sheet C5] Safety fence is shown going through construction entrance. Please revise. Rev. 1:
Comment addressed.
7. [Sheet C51 Provide wash rack for construction entrance and a place for the water/sediment
to settle. Rev. 1: Provide detail for silt sack noted on plan.
8. [Sheet C5] Provide perimeter controls and phasing plan for the proposed waterline
installation. Rev. 1: Will there be a right-of-way diversion or silt sock used?
9. Rev. 1: Please show the total drainage area to the silt fence and ensure it meets the design
requirement of % ac per 100 It silt fence.
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
Engineering Review Comments
Page 4 of 4
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,
b tp://www.albemarle.org/deptforms.asp?department=cdengno