HomeMy WebLinkAboutWPO201500021 Approval - County 2016-03-24Project:
Plan preparer:
Owner or rep.:
Plan received date:
(Rev. 1)
(Rev. 2)
(Final)
Date of comments:
(Rev. 1)
(Rev. 2)
(Final)
Reviewer:
County of Albemarle
Department of Community Development
VSMP Permit plan review —Approve
Crozet Ave North Sidewalk Project
Brian A. McPeters, P.E., Kimley-Horn / 1700 Willow Lawn Drive, Suite 200,
Richmond, VA 23230 — brian.mcpeters(a)kimley-hom.com
Frank Pohl, Office of Facilities Development, Albemarle County
401 McIntire Rd/Room 228, Charlottesville, VA 22902 — fpohlkalbemarle.org
3 Apr 2015
8 May 2015 (e-plan/link/download)
8 Jul 2015 (e-plan/link/download)
21 Mar 2016 —Final /for Approval, No revisions
5 May 2015
4 Jun 2015 (e -review: email 4:40 PM)
14 Jul 2015 (e -review: email 5:26 PM)
24 Mar 2016 improved
John Anderson
Comments are MINOR in nature —may submit .PDF/s for preview/conditional approval. Please do not revise
hard copy SWPPP (inserts/exhibit) prior to .PDF (follow-up) review of inserts/exhibit —this may save time.
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. Albemarle County must sign/date Registration Statement (ACCD/Engineering will coordinate).
(Addressed: 23 -Mar 2016)
2. Provide SWPPP Certification statement (VAR10, Part III, K.4_)(Addressed: 23 -Mar 2016)
4. Certification. Any person signing a document under Part III K t or 2 shall make the following
certification:
1 certify under penalty of law that I have read and understand this document and that this document
and all attachments were prepared in accordance with a system designed to assure that qualified
personnel properly gathered and evaluated the information submitted, Based on my inquiry of the
person or persons who manage the system, or those persons directly responsible for gathering the
information, the information submitted is, to the best of my knowledge and belief, true, accurate, and
complete. I am aware that there are significant penalties for submitting false information, including the
possibility of fine and imprisonment for knowing violations."
3. SWPPP is comprehensive. However, please update insert sheets to reflect revisions per ESC plan
comments, Sec. C. below. Note (3/24/16)—County/Engineering may possess more recent insert
sheets (SWPPP download, 7/14/15 —Also, #4, below). CD/Engineering will follow-up with FES.
4. CE -101 or CE -102 —Show initial locations of: sanitary/porta john; concrete wash-out draining to
pit/area with impermeable lining; vehicle wash draining to sediment trap/equivalent; on-site fuel
storage/re-fueling areas with containment (if proposed); non -hazardous solid waste dumpster (if
provided); covered /protected paint -solvent storage (if present). Note: these PPP facility locations
are required to be shown on SWPPP exhibit, not full-size ESC plans. These locations may change
as needed (if revise locations, show via pencil edits to on-site SWPPP exhibit). Note (3/24/16) —
Engineering Review Comments
Page 2 of 5
County/Engineering may have .PDF of SWPPP exhibit that is not be included with SWPPP. If so,
Engineering will print/forward to FES for transmittal to contractor. SWPPP exhibits are a focus of
DEQ inspections. Image below included with Kimley-Horn SWPPP (downloaded 14 -Jul 2015).
CD/Engineering will print select pp. of download; follow-up with FES.
samii
Future Reference (or additional sidewalk projects: State Farm Blvd; Barracks Rd; Hydraulic Rd), please:
u. Number pages of document for ease of reference.
b. Runoff coefficients (Rational or Modified Rational Method) are not used for compliance.
Use NRCS/TR-55/curve numbers instead. —ref 9VAC25-870-72 (24 -hr storm/NOAA
Atlas 14).
B. VSMP: SWPPP: Stormwater Management Plan (WP0201500021)
VSMP Regulation 9VAC25-870-108 requires the VSMP authority to approve or disapprove a SWMP. This
plan is approved.
Drainage and ESC Narrative for: Crozet Avenue North Sidewalk Improvements Project (REPORT),
27 -Mar -15, Water Quality Sec. explains: "The pollutant removal requirement of 0.33 lb/yr will be
purchased from a nutrient bank." Two items:
a. Ref. 9VAC25-870-69/62.1-44.15:35 —Documentation of acquisition of credits required.
(h!Ms://leg 1. state.va.us/c gi-bin/legp5O4. exe?000+cod+62.1-44.15C35).
E. Documentation of the applicant's acquisition of nutrient credits shall be provided to the VSMP authority and the
Department in a certification from the credit provider documenting the number of phosphorus nutrient credits
acquired and the associated ratio of nitrogen nutrient credits at the credit -generating entity. Until the effective date
of regulations establishing application fees in accordance vnth § 62.1-44.19:20, the credit provider shall pay the
Department a water quality enhancement fee equal to sixpercent of the amount paid by the applicant for the credits.
Such fee shall be deposited into the Virginia Stormwater Management Fund established by § 62.1-44.15:29_
Follow-up: documentation of Nutrient purchase provided 1/26/2016 1:51 PM, email Attachments.
Agreement for purchase and sale of Nutrients Offset Credits by and between Le Moulin, LLC, and
Engineering Review Comments
Page 3 of 5
County of Albemarle, VA —Malvern Environmental Bank is located in HUC8 02080205 (Middle
James -Wills), immediately adjacent to HUC8 02080204 (Rivanna); location qualifies to provide
credits to Albemarle County projects. 12.01 lb. phosphorus credits available, 24 -Mar 2016; link:
hqp://www.deq.vir ig nia.gov/Portals/0/DEO/Water/PollutionDischargeElimination/NoppointCredit
RRe istry.pdf
b. Report TOC indicates Appendix D contains Water Quality Cates. Appendix D lists data.
Provide calculations (VSMH/1999 Vol. II, Appendix 5D Worksheets/situation 3). (Rev.
1) Withdrawn.
Report/MS-19 Compliance —Provide pre -/post -development Qlo values/calculations. (Rev. 1)
Addressed.
C. VSMP: SWPPP: Erosion Control Plan (WPO201500021)
Virginia Code §62.1-44.15:55 requires the VESCP authority to approve or disapprove an ESCP. This plan is approved.
ESC comments addressed with Rev. 1, with 1 exception: item #5 (item #5 may be incorrect cross-reference to comment.
Follow-up listed at item #5 was addressed with Rev. 2.)
1. Please remove the following sheets from ESCNSM Plans (site, road, traffic): CA -002A, CR -102,
CT -101, CT -102, CT -500, CT -501, CT -502, X01, X02, X03.
2. CA -004: Revise uppermost Crozet Ave detail label to read Sta. 10+00 to Sta. 15+65.28.
3. CA -004: Please clarify if symbols 7 and 8 relate to sidewalk. Also, furnish a more descriptive
Sidewalk Detail.
4. CA -004 —If Inset B is for sidewalk, symbols 10 and 11 are undefined (should these read 7 and 8?).
For clarity, please provide a more readily readable sidewalk detail; for example:
VV 5 ft desirable
7 In_ min. next to roil top curb
4 in_ min_ elsewhere
,���ti _�,. stir- Sidewalk '.I•" -
Utility Space
31t min
6 ft min w trees
Plan) line 3 ft min
I
I
I
, II the utility space Is paned, construction shall be on compacted subgrade and the thickness
shall match that of the sidewalk, however, the area will nolbe considered part of the minimum
width required for sidewalk.
II trees are planted in paved pedestrian areas, they shall be planted in Iree wells that include
a planting grate, approved by the resident engineer. However, the width of sidawaIk passing
the tree well shall be al least 3 feel in width.
FIGURE 6 —DETAIL BACK OF CURBS
Link: http://www.vir,giniadot.orwbusiness/resources/gppendb.pdf
5. CE -101 Anclude General construction notes for Erosion and Sediment Control Plans (1.-20.); link:
http://www.albemarle.orgLupload/images/forms center/departments/Community Development/for
ms/Engineering_and_WPO_Forms/En ing eering_Plan_Review General Notes_Feb20l4.pdf.
(Rev. 1) As follow-up, Legend 7 and 8 v. inset B 7 and 8 —labels / legend appear to be transposed.
(Rev. 2) Addressed.
6. CE -101 —Add Note: Leave a gap in CIP woven fabric for stream to pass.
7. CE -101 —Revise Legend and Erosion Details to include paved construction entrance (PCE).
8. CE -101 —Show elevation (contours) at construction entrance/CE. Extend contours beyond ESC
Engineering Review Comments
Page 4of5
measures, to aid plan review.
9. CE -101 -Contour elevation labels are unreadable. Add readable labels.
10. CE -102 -Revise per CE -101 comments, as necessary.
11. CE -501 -Revise Paved Wash Rack detail, so readable (Attached detain.
12. CE -501 -Management Strategies and Sequence of EC Measures/Note 13: Revise consistent with
Note 10, CE -102 (County ESC inspector concurrence required).
13. CE -501 -Management Strategies and Sequence of EC Measures/Note 11: Recommend revise
reference to periodic inspections to be consistent with inspection frequency in VAR10/SWPPP.
14. CG -100 -Future reference: runoff coefficients used with Rational Method are not used with TR-
55/NRCS. -Also, comment #A.4.b., above. In the future, use CN, not "c."
15. CG -201 -If 18" RCP label is unintentional, remove. Meaning is unclear. -Also, next comment.
16. CG-202/CR-101 (Sta. 19+50 - 21+00±) -Drawings present dissimilar information. Clarify (across
plan sheets) what is existing, proposed, or to be abandoned/removed. -ref images:
_-T
- EXIST. R/W 101-
�
REMOVE STUB J g i TO BE
------ Try .__.._
_ i.,.. CMP -
W....__.._ ti W - . _ _. __. - .. W _._._....___..._------
17. CR -100 -Label radius of curb, Crozet Ave. North/St. George Ave (SR 810/1202).
18. CR -101 -Add (triangle) symbol 9 to Legend.
19. CR -101 -Add Note: Exist. 4' Conc. Sidewalk to be demolished (unless existing sidewalk remains).
20. CR -101 Provide (profile view) detail showing how 101-5 (DI -4A) connects with 15" line, 18"
line, and 48" HDPE.
21. CR -101 -Revise schematic, Sta. 19+50 - Str. 101-1, consistent with CG -202. Comment #16,
above.
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22. CR -101A -Identify existing structure, Sta. 20+29.62. Label pipe type, diameter, and INV elev.
23. CR-101A/All structures -Label pipe Material/type, L, DIA, INV elev. (in/out). Reference to plan
sheet is insufficient.
24. CR- 101A-Str. 101-3A and 101-7: Provide MH rim elevations.
25. CR -10113 Insufficient data: Please provide slope, L, DIA, material, INV labels (48" HDPE).
Provide equivalent labels for existing structure beneath Crozet Ave. N.
26. CR -101B -Two proposed grade labels are confusing. If one is existing grade, please revise label.
27. CR -1011 Provide Std. VDOT EW at existing pipe outfall. There will never be a better time.
Engineering Review Comments
Page 5 of 5
28. CR -500 —Ensure all details print clearly. Ensure all table values/dimensions are readable.
29. CR -501 —Several details are unreadable. Ensure readable. Also, prior comment.
30. May have encountered reference to off-site waste area during initial review, but cannot locate
reference. If an off-site waste area proposed, ensure off-site area has an approved ESC plan.
The VSMP permit application and all plans may be resubmitted for preview (as .PDFs). When all comments have
been satisfactorily addressed, and if there are no additional comments, please provide 2 copies of the plans, 1 copy
of SWPPP. Encourage .PDF submittals that show revisions.
Engineering plan review staff is available 2-4 PM on Thursdays, should you require a meeting to discuss this review.
Plan reviewer is available at 434.296-5832-0069 should you have any questions.
Process: Description below inaccurate. Area of disturbance <1 Ac., so VPDES permit coverage letter not required.
SWPPP required as condition of Albemarle County Code. 17-405. A pre -construction meeting was held 25 -Mar.
Project has received Grading Permit, and is clear to proceed to construction.
After approval, 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 request a pre -construction conference by completing a 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/del2tforms.asp?department—cdengnMo
Contact John Anderson, Engineering Dept, if any questions. janderson2Lalbemarle.org / 434-296-5832 x3069
Thank you.
File: WP0201500021_Crozet-Ave-N_Sidewalk 032416 Approv