HomeMy WebLinkAboutWPO201800091 Review Comments WPO VSMP 2019-07-17 (2)COUNTY OF ALBEMARLE
Department of Community Development
401 McIntire Road, Room 227
Charlottesville, Virginia 22902-4596
Phone (434) 296-5832 Fax (434) 972-4126
Project:
Plan preparer:
Owner or rep.:
Plan received date:
(Rev. 1)
(Rev. 2)
(Rev. 3)
Date of comments:
(Rev. 1)
(Rev. 2)
(Rev. 3)
Reviewer:
WP0201800091
NVESCP Permit Plan review
Lewis and Clark Drive Sewer Ext. — VSMP
Jonathan Showalter, Timmons Group f onathan.showalter(a)timmons.com]
608 Preston Ave., Suite 200 / Charlottesville, VA 22903
University of Virginia Foundation / P.O. Box 400218
Charlottesville, VA 22904 [tmarshall@uvafoundation.com]
5 Dec 2018 (digital)
25 Feb 2019 (digital)
27 Mar 2019 (digital)
5 Jul 2019 (digital)
27 Dec 2018
12 Mar 2019
14 Apr 2019
17 Jul 2019
John Anderson
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 for relatively few reasons,
below. The application may be resubmitted for approval if all comment items are satisfactorily addressed.
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. Link to County template:
http://www.albemarle.or¢/upload/images/fonns_center/departments/Community_ Development/forms/Engineeringand
_WPO_Forms/Stormwater_Pollution _ Prevention_Plan _SWPPP template.pd
a. List WP0201800091 on cover of SWPPP. (Rev. 1) Addressed.
b. Sign/date Sec. 1, VPDES permit registration. (Rev. 1) Not addressed. (Rev. 2) Not addressed.
(Rev. 3) Not addressed. Applicant response (7/3/19): `VPDES permit will be signed by
contractor once selected.' Engineering cannot approve VSMP plan without a complete SWPPP,
which requires Sec. 1 signature.
c. Sec. 44: Include revised ESC plans, once comments addressed. (Rev. 1) Addressed.
d. Sec. 6 /Exhibit:
i. Recommend ensure temporary sanitary facilities (porta John) are accessible to service
vendor from existing paved surface. (Rev. 1) Addressed.
ii. Provide /show a trapping measure for treatment of vehicle wash waters. (Rev. 1) Not
addressed. (Rev. 2) Partially addressed. As follow-up: If circle symbol with diagonal
hatching indicates trapping measure, provide legend, or note, to clarify. If it does not
indicate trapping measure, provide clear and understandable trapping measure. (Rev. 3)
Not addressed. Applicant response: `Circle is shown on ESC plan and inlet protection.
Inlet protection has been called out on PPP.' Please clarify if inlet protection (IP) is
Engineering Review Comments
Page 2 of 5
proposed trapping measure for vehicle wash waters. Note: sediment -laden construction -
related runoff may not discharge to storm drain conveyance. An inlet is not a trapping
measure for treatment or containment of vehicle wash waters. Please call to discuss.
iii. Provide /show lined concrete washout adjacent to PCE. (Rev. 1) Addressed.
e. Sec. 9: Sign /date Certification for SWPPP Approval. (Rev. 1) Not addressed. (Rev. 2) Not
addressed. (Rev. 3) Not addressed. Applicant response: `SWPPP approval will be signed by
contractor once selected.' Engineering cannot approve VSMP plan without a complete SWPPP.
Also, please see item A.b., above.
f. Sec. 11: Insert 21-p. CGP2014.PDF (Attached). (Rev. 1) Partially addressed. Note: 21-p.
CGP2014 appears to be inserted twice; remove first instance of permit, near beginning of SWPPP.
(Rev. 2) Partially addressed. At Sec. 2 of SWPPP, do not include pg.-1 of 21-pg. VAR10. This
section is reserved for a copy of a typical 1-2 pg. DEQ permit coverage letter, specific to a project.
This linear project will not receive a VAR10 permit. Please include statement to this effect, at
Sec. 2. (`Linear project: will not receive notice of general permit coverage,' for example.) (Rev. 3)
Addressed.
g. Sec. 12: Provide inspection logs similar to those included with Timmons Lewis & Clark Road Ext.
VSMP SWPPP /WP0201800073. (Rev. 1) Addressed.
B. Pollution Prevention Plan (PPP)
The PPP content requirements can be found in County Code section 17-404.
1. See A /Sec. 6 comments, above.
C. Stormwater Management Plan (SWMP)
SWM Plan —Project is eligible for alternative review of SWM requirements as a linear project, per DEQ Guidance
Memo No. 15-2003, Melanie Davenport, April 23, 2015 (Attached: p. 3/4 conditions). Please incorporate 4 bullet
items at bottom of pg. 3 of DEQ Memo into the VESCP Plan. Incorporate 1st bullet, p. 4 of Memo into SWPPP,
Sec. 6. (Rev. 1) 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.
1. Revise plan title to reference WP0201800091. (Rev. 1) Addressed.
2. Revise title to include VESCP; please do not ref. VSMP. (Rev. 1) Addressed.
3. Plan is eligible for Linear Project review, which exempts project from SWM Plan requirements provided
certain specific requirements are met. As supplement to title sheet Note, to remain eligible for linear project
review and SWM Plan exemption, provide the following, verbatim, on plan sheet/s. Project is required to
accept clearing/stabilization and other requirements. (Ref. DEQ Guidance Memo No. 15-2003 /Attached)
(Rev. 1) Addressed. [image /DEQ Guidance Memo text, deleted with Rev. 1 comments.]
(Title sheet Note:
STORMWATER MANAGEMENT:
THIS PROJECT IS THE LINEAR INSTALLATION OF AN UNDERGROUND SEWER LINE WHICH
WILL NOT SIGNIFICANTLY ALTER THE PRE -DEVELOPMENT RUNOFF CHARACTERISTICS
AFTER COMPLETION AND FINAL STABILIZATION. PER DEO GUIDANCE MEMO No 15-2003
NO STORMWATER MANAGEMENT IS REQUIRED. )
4. Recommend note for San. MH Str. in fill similar to Note 3. on Lewis and Clark Road Ext. Road Plan, C8.3,
image below (SUB20800171). Engineering defers to ACSA on San. MH installation requirements.
Recommend edit: replace inlet with San. MH, VDOT with ACSA. (Rev. 1) Addressed. Note: Since
proposed and existing grades of sanitary line coincide, the requested note is in effect immaterial. Regret
review error, but note is perhaps a useful reminder. [image /text of Note, deleted with Rev. 1 comments.]
5. Show /label proposed ACSA easement. Acquire and record easements, per ACSA easement document and
plat requirements. Provide copy of recorded utility easement/s to Engineering as soon as possible, with the
6
Engineering Review Comments
Page 3 of 5
understanding that easements will be centered on the As -built location of installed utility improvements,
which is typical for ACSA sanitary transmission lines. Note: please re£ and use easement width equation
listed at ACDSM Fig., pg. 15. Easement width will exceed 25' at deeper trench locations. Ref, image,
Imo. [image, deleted with Rev. 1 comments.] (Corridor width flares at certain locations, which may coincide
with deeper trench locations.) (Rev. 1) Addressed. Applicant response: `Per coordination with Richard
Nelson of ACSA, 20' standard easements centered on the sewer pipe will be sufficient. Easement plats will
be provided once sewer line is constructed.'
County Information Services GIS/Mapping recently cautioned Engineering when reviewing design to reject
design based on DDAR data. Provide field -run survey for potions of project based upon LiDAR data.
Text of October 22, 2018 3:51 PM email: "I'd like to take a moment to remind you all that using GIS data
(contours/topo, LiDAR, etc.) for engineering purposes is not the same as having a survey done by a
licensed surveyor, and as I understand it, violates state code. Only surveys by a licensed surveyor can be
used for design / construction. The 2016 LiDAR dataset is from the USGS and the metadata from the
project does not indicate whether a surveyor who is licensed in the state of Virginia was on the project or
whether any surveyor certifies or guarantees the accuracy. It's not my place to judge the intent of state code,
but LiDAR data is not a survey, regardless of accuracy level claims. While I agree that the 2016 LiDAR
data is more accurate vertically than the topo we have now, it still can contain unknown errors and relies on
the user to know what they are doing with the data since it includes far more than just ground elevation
points, has limited horizontal control, and cannot tell you where parcel boundaries are located. This was a
big deal about a year ago (see attached documents) and came up again this month in Engineering, so please
make sure your staff is aware of this.
Note that on the elevation data on our data download page, we specifically say that our GIS data cannot be
used for design / construction / modification of real property."
Revise Timmons Group Sanitary Sewer Survey Notes, C2.0. (Rev. 1) Partially addressed. Applicant
response: `Per coordination between Joe Medley, LS, of Timmons Group and John Anderson it has been
clarified that the data provided has been certified by licensed surveyors for both surveys used. Please see
sheet C2.0 for surveyor seals.' As follow-up: Please ensure final print copies of VESCP /WPO carry
signed -dated LS-seal (G. V. "Kirk" Hughes LS-seal /sheet C2.0). (Rev. 2) Addressed. See Aaron Mabee
email (4/9/2019 10:11 AM) w/ C2.0 Attachment (image, below)
HUGHES & ASSOCIATES SURVEY NOTES:
1_) HORIZONTAL DATUM: NAD-83 VIRGINIA SOUTH ZONE \� 1 ` ` I III 1111 lll� 15titp�n
2.)VERTICAL DATUM: NAVD-88 1 \? �`�. �l���''}', 5�1��1�``��}}��Oil
BENCHMARK: UNIVERSITY OF VIRGINIA BRASS DISK'NF2," SET IN CONCRETE, LOCATED 4.5'
FROM THE FACE OF CURB ON THE EAST SIDE OF LEWIS AND CLARK DRIVE APPROXIMATELY '� ± 1+1,�`�� I i `` ���``�� d, `•
370' NORTH OF THE INTERSECTION WITH DISCOVERY DRIVE. ELEVATION = 543.93'
3.) THE LOCATIONS OF EXISTING UNDERGROUND UTILITIES ARE SHOWN IN AN APPROXIMATE ti`Z\ \tip, th1i`�i 11j1�
WAY ONLY THE FOLLOWING SOURCES WERE UTILIZED DRAFTING THE LOCATIONS OF _ �l` l� t III d Ijllfiiffr
UNDERGROUND UTILITIES' FIELD SURVEYS OF MARKED LINES: TOPOGRAPHIC MAPS, AS -BUILT
PLANS, AND SITE PLANS PROVIDED BY THE UNIVERSITY OF VIRGINIA FOUNDATION; AND
UTILITY MAPS PROVIDED BY THE UNIVERSITY OF VIRGINIA FOUNDATION AND THE UTILITY
COMPANIES. NO UNDERGROUND INVESTIGATION OF UTILITIES WAS PERFORMED. THE !!!!!!
CONTRACTOR SHALL DETERMINE THE EXACT LOCATION OF ALL EXISTING UTILITIES BEFORE _
COMMENCING WORK, THE CONTRACTOR AGREES TO BE FULLY RESPONSIBLE FOR ANY AND
ALL DAMAGES WHICH MIGHT BE OCCASIONED BY HIS OR HER FAILURE TO EXACTLY LOCATE
AND PRESERVE ANY AND ALL UNDERGROUND UTILITIES.
UTILITY OPERATORS:
SANITARY SEWER - ALBEMARLE COUNTY SERVICE AUTHORITY
WATER- ALBEMARLE COUNTY SERVICE AUTHORITY
TELEPHONE -SPRINT, UVA
OF'
TELEVISION- ADELPH IA, COMCAST
P
ELECTRIC - DOMINION VIRGINIA POWER
GAS - CITY OF CHARLOTTESVILLE
-
MISS UTILITY CONTACT INFORMATION.
1-800552-7001
9
C. V.
4.) PREPARED FOR: UNIVERSITY OF VIRGINIA FOUNDATION
GfC: N4� BVG8RSS
,6 1 /7
5.) ONLY THE AREAS WITHIN THE "SURVEY LIMITS" SHOWN HEREON WERE SURVEYED BY KIRK
14 4
HUGHES AND ASSOCIATES. THE TOPOGRAPHIC AND PLANIMETRIC INFORMATION OUTSIDE OF
D SUR>(F,io
THESE LIMITS WAS SURVEYED BY OTHERS AND PROVIDED TO US BY THE UNIVERSITY OF
VIRGINIA FOUNDATION.
6.) THIS TOPOGRAPHIC SURVEY WAS COMPLETED UNDER THE DIRECT AND RESPONSIBLE
CHARGE OF KIRK HUGHES, L.S. FROM AN ACTUAL GROUND SURVEY MADE UNDER HIS
SUPERVISION; THAT THE ORIGINAL DATA WAS OBTAINED ON STARTING IN MAY THRU
OCTOBER 2017; AND THAT THIS MAP, MAP OR DIGITAL GEOSPATIAL DATA INCLUDING
METADATA MEETS MINIMUM ACCURACY STANDARDS UNLESS OTHERWISE NOTED.
7. Include Paved Wash Rack detail on plans; see ACDSM, pg. 8 (PCE). (Rev. 1) Addressed.
Engineering Review Comments
Page 4of5
8. Label Limits of Construction linework, sheet C3.1, or list 6.87 Ac. in ESC Legend. (Rev. 1) Addressed. As
follow-up: Please ensure rev. SWPPP Sec. 1 /Registration Statement, is consistent with sheet C3.2 Area,
LOD =_.
[county email: 3/11/2019 11:32 AM] [Timmons email 3/12/2019 11:29 AM, w/SWPPP — C3.2 and SWPPP consistent]
9. Eliminate cross -contour silt fence. Silt fence is installed parallel with contours. Staggered eyelash/scallop
silt fence is an option. (Rev. 1) Addressed.
10. Show and label steep slopes. (Rev. 1) Addressed.
11. Provide sediment trapping /conveyance measures, as appropriate; please recall SF is inappropriate for
locations with upslope length > 100'. Provide sediment traps. Provide diversions, DD / RWD, as needed.
(Rev. 1) Addressed. Applicant response: `Clean water diversions have been added to divert the offsite
water around pipe trenching and installation. Clean water diversions will outfall to stabilized silt fence
breaks at low points.'
12. Provide San. Line stationing, at 100' intervals, for bond estimate, construction, and inspection point of
reference. Show in plan view. (Rev. 1) Addressed.
13. Provide temporary vehicular stream crossing detail (SC, VESCH Std. & Spec. 3.24). Label SC wherever
sanitary line or construction activity will cross or may impact a perennial stream. (Rev. 1) Addressed.
14. Acquire USACE permit/s, as needed. Provide copy of coordination correspondence with USACE. (Rev. 1)
Addressed. Applicant acknowledges. `Permit application is in process and permit will be provided once
received.' (Rev. 2, 3) County confirmed VESCP approval requires USACE permit issuance, during tel. call
11-Apr (J. Anderson J. Showalter, Timmons Group).
15. For areas now in forest, show post -developed cleared utility RW corridor. Show as proposed new tree line
consistent with linear project environmental impact minimization imperative. (Rev. 1) Addressed.
16. Include note/s that utility RW corridor will be managed as turf, not converted to impervious stone access.
(Rev. 1) Addressed.
17. Relabel CE, sheet C3.1, as PCE. (Paved construction entrance). (Rev. 1) Addressed.
18. Provide /show PCE at north end of sewer line corridor, if CE is anticipated or may be needed at north end.
(Rev. 1) Addressed. Applicant response: `A CE is not anticipated at the north end of the site due to the
steep slopes and difficulty of access from that point.'
19. Revise Sequence of Construction, C3.0 to include placement of DD, RWD, ST, SC, etc. as needed. Also,
revise consistent with linear project requirements (i.e., daily limit on area of disturbance, etc.). (Note:
Review comments are consistent with comments on a recent RWSA water main project at Birdwood Golf
Course, especially with respect to required minimum VESCH measures and linear project requirements.)
(Rev. 1) Addressed. As follow up: Please revise C3.0 Sequence of Installation, Note 1 (county
preconstruction meeting held at COB, not on -site). (Rev. 2) Partially addressed. Asefollow-up: Please
revise Note 1 to identify coun office building as site of meeting, rather than city office building (Rev. 3)
Addressed.
The VSMP permit application and all plans may be resubmitted for approval when all comments have been
addressed. For re -submittal, please provide 2 copies of the 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, VESCP plan 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 (or ACSA contractor,
if contractor will post ESC Plan bond) 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.
Engineering Review Comments
Page 5 of 5
Link to bond estimate request form:
https://www.google.com/url?q=https://www.albemarle.org/upload/images/forms center/departments/Community Developme
nt/forms/bondsBond_Request _to Establish a Bond.pdf&sa=U&ved=OahUKEwjOsL-
ctOXdAhWmOAKHbcVBwoOFggGMAE&client=internal-uds-
cse&cx=013641561590022973988:g3cwj srdbli&usg=AOvVawl RFX8fSN 1_ObuZ8tTQgEEpK
After bonding is complete, the County can hold a pre -construction conference. Applicant will need to complete
the request for apre-construction conference form, and pay the remainder of the application fee ($0). The form
identifies the contractor and responsible land disturbed, 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 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;
hllp://www.albemarle.orp-/deptforms.asp?department--cdengmTo
Ifyou have questions /concerns, please contact me at janderson2galbemarle.org or at 434.296-5832-x3069.
Thank you
J. Anderson, Engineering Division
WP0201800091 Lewis and Clark Drive Sewer Ext VSMP 071719rev3