20130970 Ver 1_401 Application_20130913

L'i '�;�
September 9, 2013
Karen Higgins
NC DENR -DWR — WBSCP Unit
512 N. Salisbury Street
Raleigh, NC 27604
20130970
RE: Buffer Authorization Request
Air Injection Remediation System Trench and Injection Points
4120 & 4200 Glenwood Avenue
Raleigh, Wake County, North Carolina
NCDENR Incident Numbers: 13029 & 17222
Dear Ms. Higgins:
Enclosed are three copies of Pre- Construction Notification (PCN) Form and attachments
completed in order to obtain authorization for construction within the Crabtree Creek
riparian buffer at 4120 & 4200 Glenwood Avenue, Raleigh, Wake County, North
Carolina. Activities include trenching and piping as part of remediation system
installation for treatment of NCDENR Groundwater Incidents Nos. 13029 and 17222.
The enclosed PCN package includes a PCN Form, a Riparian Buffer Credit Reservation
Letter, relevant construction plans (Sheets C -4, C -5, C -6, C -8, C -9, and C -10), and a
Delegation of Authority letter indicating approval for URS Corporation- North Carolina staff
to sign as agents for Atlantic Richfield Company (ARCO), a BP Products of North America,
Inc. affiliated company.
If you have any questions regarding this submittal, please call me at (919) 461 -1595.
Sincerely,
URS Corporatl6n — North Carolina
Caleb Wuse
Project Engineer
Enclosure(s)
cc: Greg Frisch, BP (electronic / ENFOS)
URS Project File 38436746
URS Corporation — North Carolina
1600 Perimeter Park Drive, Suite 400
Morrisville, NC 27560
Tel: [phone]
Fax: [phone]

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20130970
Office Use Only:
Corps action ID no.
DWQ project no.
Form Version 1.4 January 2009
Pre - Construction Notification (PCN) Form
A. Applicant Information
1. Processing
1 a. Type(s) of approval sought from the Corps:
❑ Section 404 Permit ❑ Section 10 Permit
1b. Specify Nationwide Permit (NWP) number: or General Permit (GP) number:
1c. Has the NWP or GP number been verified by the Corps?
❑ Yes ❑ No
1 d. Type(s) of approval sought from the DWQ (check all that apply):
❑ 401 Water Quality Certification — Regular ❑ Non -404 Jurisdictional General Permit
❑ 401 Water Quality Certification — Express ❑X Riparian Buffer Authorization
1 e. Is this notification solely for the record
because written approval is not required?
For the record only for DWQ
401 Certification:
❑ Yes ❑ No
For the record only for Corps Permit:
❑ Yes ❑ No
1f. Is payment into a mitigation bank or in -lieu fee program proposed for
mitigation of impacts? If so, attach the acceptance letter from mitigation bank
or in -lieu fee program.
Q Yes []No
1g. Is the project located in any of NC's twenty coastal counties. If yes, answer 1 h
below.
❑ Yes Q No
1 h. Is the project located within a NC DCM Area of Environmental Concern (AEC)?
❑ Yes © No
2. Project Information
2a. Name of project:
NCDENR UST Incident #13029 and #17222 (BP 825) Air Injection System Install
2b. County:
Wake
2c. Nearest municipality / town:
Raleigh
2d. Subdivision name:
2e. NCDOT only, T.I.P. or state project no:
3. Owner Information
3a. Name(s) on Recorded Deed:
Sampson Bladen Oil Company, Inc/ City of Raleigh
3b. Deed Book and Page No.
13305 -2467/ 07973 -0134
;3c. Responsible Party (for LLC if`
applicable):
SEP j Q 2nD
3d. Street address:
4120 Glenwood Avenue /4200 Glenwood Ave 0 .
3e. City, state, zip:
Raleigh, NC/ Raleigh, NC s UAIlr.
3f. Telephone no.:
919 - 789 - 7002/919 - 9964786
3g. Fax no.:
919 - 785 - 1912/919- 996 -7486
3h. Email address:
haddon.clark@ sampsonbladen. com /victor.lebsock @raleighnc.gov
Page 1 of 10
PCN Form — Version 1.4 January 2009

4. Applicant Information (if different from owner),
4a. Applicant is:
Q Agent Q Other, specify: Owner of installed piping and wells
4b. Name:
c/o Greg Frisch
4c. Business name,
(if applicable):
Atlantic Richfield Company (ARCO) a BP Products of NA Inc affiliated company
4d. Street address:
4850 East 49th Street, MBC -3 Room 103B
4e. City, state, zip:
Cuyahoga Heights, OH 44125
4f. Telephone no.:
216 -416 -1232
4g. Fax no.:
216 -416 -1220
4h. Email address:
greg.frisch @bp.com
5. Agent/Consultant Information (if applicable)
5a. Name:
Caleb Krouse (see attached Delegation of Authority letter)
5b. Business name
(if applicable):
URS Corporation - North Carolina
5c. Street address:
1600 Perimeter Park Drive
5d. City, state, zip:
Morrisville, NC 27560
5e. Telephone no.:
919 -461 -1595
5f. Fax no.:
919 -461 -1415
5g. Email address:
caleb.krouse @urs.com
Page 2 of 10

B. Project Information and Prior Project History
(11 (Property Identificatfon
1a_Property identification no. (tax PIN or parcel ID):
0796700071/0796608089
1 b. e coordinates to decimal d rees
(_ - -Sit ( e9 )
�atitude 35.8379 Longitude: - 78.6726
(1 c. Property sizJ
1.2 acres
(2. 'Surface Waters'
(2a. Name of nearest body of water to proposed project:
Crabtree Creek
2b. Water Quality Classification of nearest receiving water:
Class C
2c. River basin:
Nuese
3. Project Description
(3a. Describe the existing conditions on the site and the general land use in the vicinity of the project at the time of this
application:
The site is currently used as an operating gas station and convenience store (1 acre). The adjacent property is used as a recreational Greenway and
is owned by the City of Raleigh (0.2 acres). The gas station property is primarily covered in asphalt and concrete with vegetation on the stream bank.
3b. List the total estimated acreage of all existing wetlands on the property:
3c. List the total estimated linear feet of all existing streams (intermittent and perennial) on the property: 200
3d. Explain the purpose of the proposed project:
The project is intended to install remediation piping for a system designed to clean up gasoline impacts in groundwater
(NCDENR UST Incident #13029 and #17222)
3e. Describe the overall project in detail, including the type of equipment to be used:
Air injection points (referred to as wells) will be installed using a drill rig where feasible and a hand auger or other soft dig method otherwise. An
excavator will be used to dig trenches for piping where accessible Sensitive areas are not accessible with an excavator and will be trenched by hand
shovel. Trenches will be backfilled with pea gravel and the surface will be restored to match existing conditions including native soil and grass seed.
4. Jurisdictional Determinations
4a. Have jurisdictional wetland or stream determinations by the
Corps or State been requested or obtained for this property /
project (including all prior phases) in the past?
❑ Yes ©'No ❑ Unknown
,Comments:,
4b. If the Corps made the jurisdictional determination, what type
of determination was made?
❑ preliminary ❑ Final
4c. If yes, who delineated the jurisdictional areas?
Name (if known):
Agency /Consultant Company:
Other:
4d. If yes, list the dates of the Corps jurisdictional determinations or State determinations and attach documentation.
5. Project History
5a. Have permits or certifications been requested or obtained for
this project (including all prior phases) in the past?
Yes, Q No El Unknown
`5b. if yes, explain in detail according to "help file" instructions.
S. Future Project Plans
6a. Is this a phased project ?j
❑ Yes X❑ No
6b. ,If yes, explain.,
Pa e 3 of 10
PCN Form — Version 1.4 January 2009

C. Proposed Impacts Inventory
1. Impacts Summary
1 a. Which sections were completed below for your project (check all that apply):
❑ Wetlands ❑ Streams — tributaries Q Buffers, ❑ Open Waters ❑ Pond Construction
2. Wetland Impacts
If there are wetland impacts proposed on the site, then complete this question for each wetland area impacted.
2a.
Wetland impact
number
Permanent (P) or
Tem ora
2b.
Type of impact
2c.
Type of wetland
2d.
Forested
2e.
Type of jurisdiction
Corps (404,10) or
DWQ (401, other)
2f.
Area of
impact
(acres)
W1 -
Choose one
Choose one
Yes/No
-
W2 -
Choose one
Choose one
Yes/No
W3 -
Choose one
Choose one
Yes/No
W4 -
Choose one
Choose one
Yes/No
W5 -
Choose one
Choose one
Yes/No
W6 -
Choose one
Choose one
Yes/No
2g. Total Wetland Impacts:
2h. Comments:
3. Stream Impacts
If there are perennial or intermittent stream impacts (including temporary impacts) proposed on the site, then complete this
question for all stream sites impacted.
3a.
Stream impact
number
Permanent (P) or
Temporary (T)
3b.
Type of impact
3c.
Stream name
3d.
Perennial (PER) or
intermittent (INT)?
3e.
Type of
jurisdiction
3f.
Average
stream
width
(feet)
3g.
Impact
length
(linear
feet)
S1 -
Choose one
S2 -
Choose one
S3 -
Choose one
S4 -
Choose one
S5 -
Choose one
S6 -
Choose one
3h. Total stream and tributary impacts
3i. Comments:
Page 4 of 10
PCN Form — Version 1.4 January 2009

4. Open Water Impacts
If there are proposed impacts to lakes, ponds, estuaries, tributaries, sounds, the Atlantic Ocean, or any other open water of
the U.S. then indiv* ually list all open water impacts below.
4a.
Open water
impact number
Permanent (P) or
Temporary
4b.
Name of waterbody
(if applicable)
4c.
Type of impact
4d.
Waterbody
type
4e.
Area of impact (acres)
01 -
Choose one
Choose
02 -
Choose one
Choose
03 -
Choose one
Choose
04 -
Choose one
Choose
4f. Total open water Impacts
4g. Comments:
S. Pond or Lake Construction
If pond or lake construction proposed, the complete the chart below.
5a.
Pond ID number
5b.
Proposed use or
purpose of pond
5c.
Wetland Impacts (acres)
5d.
Stream Impacts (feet)
5e.
Upland
(acres)
Flooded
Filled
Excavated
Flooded
Filled
Excavated
P1
Choose one
P2
Choose one
5f. Total:
5g. Comments:
5h. Is a dam high hazard permit required?
❑ Yes ❑ No If yes, permit ID no:
5i. Expected pond surface area (acres):
5j. Size of pond watershed (acres):
5k. Method of construction:
6. Buffer Impacts (for DWQ)
If project will impact a protected riparian buffer, then complete the chart below. If yes, then individually list all buffer impacts
below. If any impacts require mitigation, then you MUST fill out Section D of this form.
6a. Project is in which protected basin ?,
Q Neuse ❑ Tar - Pamlico ❑ Catawba ❑ Randleman ❑ Other:
6b.
Buffer Impact
number—
Permanent (P) or,
Temporary
6c.
Reason for impact
6d.
Stream name
6e.
Buffer
mitigation
required ?,
6f.
'Zone 1
impact
'(square
' feet )
6g.
Zone 2
impact
(square
feet
B1 T
Piping Trenches
Crabtree Creek
Yes
275
491
B2 P
Well pads
Crabtree Creek
Yes
36
40
B3 P
Pipe Penetration Cover
Crabtree Creek
Yes
30
0
B4 -
Yes/No
B5 -
Yes/No
B6 -
Yes/No
6h. Total Buffer Impacts:
341
531
6i. Comments: Mitigation required only for Zone 1 impacts (parallel non electrical utility lines)
Page 5 of 10

D. Impact Justification and Mitigation
1. Avoidance and Minimization
1 a. Specifically describe measures taken to avoid or minimize the proposed impacts in designing project.
The project was designed to minimize areas necessary to be covered with concrete or asphalt as well as redesigning the current conditions to have
less area covered by asphalt after the project is finished
1 b. Specifically describe measures taken to avoid or minimize the proposed impacts through construction techniques.
Heavy equipment will only be used in areas of stable ground that are already compacted and will not experience significant upset. Installations in more
sensitive areas of the property will be done using less invasive techniques that do not disturb surrounding areas as heavy machinery would.
2. Compensatory Mitigation for Impacts to Waters of the U.S. or Waters of the State
2a. Does the project require Compensatory Mitigation for
impacts to Waters of the U.S. or Waters of the State?
❑ Yes ❑ No
2b. If yes, mitigation is required by (check all that apply):
❑ DWQ ❑ Corps
2c. If yes, which mitigation option will be used for this
project?
❑ Mitigation bank
❑ ro Payment to in -lieu fee ram
y program
❑ Permittee Responsible Mitigation
3. Complete if Using a Mitigation Bank
3a. Name of Mitigation Bank:
3b. Credits Purchased (attach receipt and letter)
Type: Choose one
Type: Choose one
Type: Choose one
Quantity:
Quantity:
Quantity:
3c. Comments:
4. Complete If Making a Payment to In -lieu Fee Pro ram
4a. Approval letter from in -lieu fee program is attached.
❑ Yes
4b. Stream mitigation requested:
linear feet
4c. If using stream mitigation, stream temperature:
Choose one
4d. Buffer mitigation requested (DWQ only):
square feet
4e. Riparian wetland mitigation requested:
acres
4f. Non - riparian wetland mitigation requested: I
acres
4g. Coastal (tidal) wetland mitigation requested:
acres
4h. Comments:
S. Complete If Using a Permittee Responsible Mitigation Plan
5a. If using a permittee responsible mitigation plan, provide a description of the proposed mitigation plan.
Page 6 of 10
PCN Form — Version 1.4 January 2009

6. Buffer Mitigation (State Regulated Riparian Buffer Rules)-- required by DWQ,
6a. Will the project result in an impact within a protected riparian buffer that requires
Yes ❑ No
buffer mitigation?
6b. If yes, then identify the square feet of impact to each zone of the riparian buffer that requires mitigation. Calculate the
amount of mitigation required.,
6c.
6d.
6_e.
Zone
Reason for impact
Total impact
_
Multiplier
- 'Required mitigation
`(square feet)
(square feet)
Zone 1
Well pads and Pipe Penetration
Cover (P)
66
3 (2 for Catawba)
198
Zone 2
1.5
6f. Total buffer mitigation required:
198
6g. If buffer mitigation is required, discuss what type of mitigation is proposed (e.g., payment to private mitigation bank,,
permittee responsible riparian buffer restoration, payment into an approved in -lieu fee fund).
Temporary impacts will mitigated by returning the area to original conditions. Permanent impacts will be mitigated by paying into a mitigation bank or
EEP.
Only calculations for permanent impacts requiring mitigation are listed above
6h. Comments:,
Page 7 of 10

E. Stormwater Management and Diffuse Flow Plan (required by DWQ)
1. Diffuse Flow Plan
la. Does the project include or is it adjacent to protected riparian buffers identified
❑X ❑ No
within one of the NC Riparian Buffer Protection Rules?
,Yes
1b. If yes, then is a diffuse flow plan included? If no, explain why.
The surface of trenches will be restored to existing conditions and will not change flow into the creek. As
the the injection
❑ Yes ❑X No
shown on attached maps, additional point vault pads (3'x3') and pipe penetration cover
(approximately 3' x 10' facade on retention wall) are discontinuous. The addition of these features will not
change flow patterns into the creek.
2. Stormwater Management Plan
2a. What is the overall percent imperviousness of this project?
2b. Does this project require a Stormwater Management Plan?
❑ Yes ❑ No
2c. If this project DOES NOT require a Stormwater Management Plan, explain why:
2d. If this project DOES require a Stormwater Management Plan, then provide a brief, narrative description of the plan:
2e. Who will be responsible for the review of the Stormwater Management Plan?
3. Certified Local Government Stormwater Review
3a. In which local government's jurisdiction is this project?
❑ Phase II
3b. Which of the following locally - implemented stormwater management programs
❑ NSW
❑ USMP
apply (check all that apply):
❑ Water Supply Watershed
❑ Other:
3c. Has the approved Stormwater Management Plan with proof of approval been
❑Yes ❑ No
attached?
4. DWQ Stormwater Program Review
[]Coastal counties
❑HQW
4a. Which of the following state - implemented stormwater management programs apply
ORW
(check all that apply):
HSession Law 2006 -246
❑Other:
4b. Has the approved Stormwater Management Plan with proof of approval been
❑ Yes ❑ No
attached?
5. DWQ 401 Unit Stormwater Review
5a. Does the Stormwater Management Plan meet the appropriate requirements?
❑ Yes ❑ No
5b. Have all of the 401 Unit submittal requirements been met?
❑ Yes ❑ No
Page 8 of 10
PCN Form — Version 1.4 January 2009

F. Supplementary Information
1. Environmental Documentation (DWQ Requirement)
1 a. Does the project involve an expenditure of public (federal /state/local) funds or the
❑ Yes
❑ No
use of public (federal /state) land?
1 b. If you answered "yes" to the above, does the project require preparation of an
environmental document pursuant to the requirements of the National or State
❑ Yes
❑ No
(North Carolina) Environmental Policy Act (NEPA/SEPA)?
1 c. If you answered "yes" to the above, has the document review been finalized by the
State Clearing House? (If so, attach a copy of the NEPA or SEPA final approval
letter.)
❑ Yes
❑ No
Comments:
2. Violations (DWQ Requirement)
2a. Is the site in violation of DWQ Wetland Rules (15A NCAC 2H .0500), Isolated
Wetland Rules (15A NCAC 2H .1300), DWQ Surface Water or Wetland Standards,'
❑Yes
Q No
or Riparian Buffer Rules (15A NCAC 2B .0200)? - J
2b. Is this an after - the -fact permit application?
El Yes
❑X !No
2c. If you answered "yes" to one or both of the above questions, provide an explanation of the violation(s):
3. Cumulative Impacts (DWQ Requirement)
3a. Will this project (based on past and reasonably anticipated future impacts) result in
El Yes
Q No
additional development, which could impact nearby downstream water quality?
3b. If you answered "yes" to the above, submit a qualitative or quantitative cumulative impact analysis in accordance with the
most recent DWQ_policy. If you answered "no," provide a short narrative-description.
4. Sewage Disposal (DWQ Requirement)
4a. Clearly detail the ultimate treatment methods and disposition (non- discharge or discharge) of wastewater generated from
the proposed project, or available capacity of the subject facility.
Page 9 of 10
PCN Form — Version 1.4 January 2009

5. Endangered Species and Designated Critical Habitat (Corps Requirement)
5a. Will this project occur in or near an area with federally protected species or
Yes No
❑ ❑
habitat?
5b. Have you checked with the USFWS concerning Endangered Species Act
❑ Yes ❑ No
impacts?
5c. If yes, indicate the USFWS Field Office you have contacted.
-
5d. What data sources did you use to determine whether your site would impact Endangered Species or Designated Critical
Habitat?
6. Essential Fish Habitat (Corps Requirement)
6a. Will this project occur in or near an area designated as essential fish habitat?
❑ Yes ❑ No
6b. What data sources did you use to determine whether your site would impact Essential Fish Habitat?
7. Historic or Prehistoric Cultural Resources (Corps Requirement)
7a. Will this project occur in or near an area that the state, federal or tribal
governments have designated as having historic or cultural preservation
❑ Yes ❑ No
status (e.g., National Historic Trust designation or properties significant in
North Carolina history and archaeology)?
7b. What data sources did you use to determine whether your site would impact historic or archeological resources?
B. Flood Zone Designation (Corps Requirement)
8a. Will this project occur in a FEMA- designated 100 -year floodplain?
❑ Yes ❑ No
8b. If yes, explain how project meets FEMA requirements:
8c. What source(s) did you use to make the floodplain determination?
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ApplicanUAgent's Printed Name
Applicant/Agent's Signature
Date
(Agent's signature is valid only if an authorization
letter from the applicant is provided.)
Page 10 of 10

Aflan6c Richfield Company
G"Risch
0PW&MR*d
4850 East 49'" Street
Cuyahoga Heights, OH 44125
Mail Code MBC 3
Phone: [phone]
Fax. [phone]
E -Mail: [e-mail]
January 2, 2013
Ms. Jennifer Biland
URS Corporation
402 Tartan Way
Enterprise, AL 36330
RE: Deleeation of Authority by BP Products North America Inc.
Please be advised that the undersigned, an Operations Project Manager for Atlantic Richfield Company, a
Delaware corporation, does hereby delegate to Jennifer Biland in her capacity as Program Manager for URS
Corporation (URS) and Margaret Ness, Joseph Wilson, Paul Farris, Amanda Taylor, Jeff Hvozdik, Pat
Gallagher, Caleb Krause, and Brandt Morrow, in their capacity as Project Managers for URS, the authority to
do and perform the following tasks on behalf of the Company within the States of North Carolina, South
Carolina.
To do and perform on behalf of the Company the following tasks and activities in connection with
environmental remediation, environmental investigation and related environmental support activities to be
undertaken at any present or former Company facilities, including above or underground storage tank systems
and related equipment at such facilities, if any, for which the Company is or is alleged to be responsible as a
result of past, present or figure operations, assets or holdings of the Company, or any combination thereof,
which tasks and activities are only to be performed at such facilities and in the manner directed by the
undersigned:
i. Preparation, execution and submittal of all necessary applications to obtain environmental
permits and/or renewals of such permits, as may be required by state, federal or local
authorities;
ii. Execution of standardized and unmodified form access agreements (using forms
previously approved by Remediation Management or the Company) for the right of
entry to properties owned by third parties;
iii. Preparation and execution of any and all environmental reports and correspondence to
be submitted to any federal, state and /or local governmental agencies, as may be
required by any federal, state or local laws, regulations or ordinances;
iv. Preparation and execution of any and all approved documents required to obtain a right
of way from third parties;
V. Preparation and execution of any property transfer forms required by federal, state or
local laws, for the Company's sale of any real property interests in such facilities;
vi. Preparation and execution of any and all documents relating to well disclosures;
to
0 ASIRaffifistedowniWV

• Page 2
January 2, 2013
vii. Preparation, execution and submittal of applications for reimbursement to state
insurance funds in accordance with any applicable laws and regulations, and handling
any and all appeals from decisions of state insurance funds and/or administrators as
authorized by law; and
viii. Preparation, execution and submittal of all applications, forms and other documents, as
required by applicable laws, to treat or dispose of contaminated soil or water at or
associated with such facilities in accordance with applicable laws and the waste
disposal policies of Remediation Management and/or the Company.
Such representation shall commence on the date of this letter and shall expire December 31, 2013,
unless otherwise earlier revoked by undersigned, the Company or Remediation Management. This
delegation supersedes and replaces any previous delegation of authority given to you by undersigned,
or the Company.
Very truly yours,
I S
Greg Frisch
Operations Project Manager
Atlantic Richfield Company
cc: Rita Lovell — RM Procurement Manager, Houston, Texas
Kenetria Bennett — RM Internal Control Analyst, Houston, Texas

September 6, 2013
BP Oil
Subject: Riparian Buffer Credit Reservation Letter
Dear Customer:
Restoration Systems has reserved —198 sgft of riparian buffer offset credits at a price of
$.99 /sqft. Making the total $196.02 from its Lane Island Bank Parcel, DWQ #08 -0510 v3 to
meet the requirements associated with permitting the project located in HUC 03020201 of the
Neuse River Basin. These credits are reserved for a period of 60 days from the date of this letter
with the option to renew the reservation upon notification of continued need. If you have any
questions concerning this transaction please contact me at 919.334.9123.
Sincerely,
f.
JP4^-IOA7�
Tiffani Bylow
Restoration Systems, LLC
1101 Haynes St, Suite 211 - Raleig, NC 2Zffi(Q # - ganscom - Ph 919.755.9490 - Fx 919.755.9492

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Han —Dee 1. TRENCH AREA DESIGN, ALONG WITH PAVEMENT REMOVAL AREA,
Hugo's #47 IS DESIGNED TO COMPLY WITH BP RM INTEGRITY MANAGEMENT
ENGINEERING MANUAL REQUIREMENTS INCLUDING:
a. PROVIDE 12 INCHES MINIMUM OF NEW PAVEMENT BETWEEN
TRENCH EDGES AND EXISTING PAVEMENT EDGE,
b. PROVIDE 36" CONCRETE PAD AROUND 12 "X12" WELL VAULTS,
`- PRESERVE CATHODIC c. PROVIDE MINIMUM 2" SPACING BETWEEN PIPES IN TRENCH, AND
jj PROTECTION WIRE d.PROVIDE MINIMUM 4" SPACING BETWEEN PIPE AND TRENCH
EDGE.
UNU 2. EXISTING UTILITY LOCATIONS SHOWN ARE APPROXIMATE.
'-- EXCAVATION WILL BE PERFORMED BY HAND OR AIR KNIFE WITHIN
° 10 FEET OF ALL UTILITIES SHOWN AND WITHIN 10 FEET OF ALL
UTILITIES SUBSEQUENTLY LOCATED DURING UTILITY LOCATION.
3. SELECT EXISTING TREES MAY BE REMOVED UNDER URS DIRECTION
TO ALLOW TRENCH AND WELL INSTALLATION.
4. GEOGRID REINFORCEMENT IS TIED TO EACH GREENWAY RETAINING
WALL. GEOGRID SHALL NOT BE CUT EXCEPT FOR APPROXIMATELY
2 4 VERTICAL PENETRATIONS (WELL INSTALLATION). GEOGRID IS
ESTIMATED TO EXIST AT A DEPTH OF 24" SOUTH OF EACH WALL.
PIPING SHALL BE INSTALLED ABOVE THE GEOGRID IN THESE
AREAS.
0 20
APPROX. SCALE, ft.
TRENCH LAYOUT PLAN
BP 825, RALEIGH, NORTH CAROLINA
bp
r m
BP REMEDIATION MANAGEMENT
DRAWN TSH DATE
CHECKED CK 1 -28 -13
CONFIDENTIAL -ALL RIGHTS RESERVED - PROPERTY OF
RDU, NORTH CAROLINA 27560
SCALE SHEET SIZE SHEET
1 " =20' B C -4

P: \BP \CADD URS \00825 \2013 Air Iniection Bid Drawings \May 2013 \Sheet C -5 dwg ftL30, 2013 - 3:51 PM
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0
a�
INSTALL CAP UNIT
ABOVE PIPE:
MATCH EXISTING CORE THROUGH
WALL
NATIVE SOIL FILTER FABRIC
BACKFILL NOTES:
PEA GRAVEL
HOPE COMPRESSED
PEA GRAVEL HOPE TO STEEL AIR PIPE
STEELNPIPE �I� I I I I 6 10"
INSTALL NEW CONCRETE
BLOCK COVER TO SURROUND
ABOVE GRADE PIPE:
MATCH EXISTING BLOCK
NEW BLOCK SHALL
NOT ENCROACH ON
CONCRETE WALKWAY
NATIVE SOIL
BACKFILL
FILTER FABR
LEVEL GRAVEL OR INSTALL
CONCRETE LEVELING PAD
AT WALL BASE
HOPE PIPE -V / PEA GRAVEL
HDPE TO STEEL
ADAPTER
SECTION A
4 6
EXISTING SOIL
OR FILL
EXISTING
SEGMENTAL BLOCK
RETAINING WALL
DEPTH OF
REINFORCEMENT
BLOCK UNKNOWN
(VIF)
EXISTING GEOGRID
REINFORCEMENT
(VIF)
1. DAMAGE TO THE EXISTING BLOCK WALL DURING PIPE INSTALLATION SHALL
BE REPAIRED BY THE CONTRACTOR, AT THE CONTRACTOR'S EXPENSE, TO
MATCH THE EXISTING CONDITION. CORING THROUGH WALL SHALL BE
IMPLEMENTED IN A MANNER TO AVOID DAMAGE TO EXISTING RETAINING WALL
AND FIBERGLASS PIN CONNECTORS. CORING METHODS AND OTHER
CONSTRUCTION METHODS SHALL NOT PUSH OR PULL RETAINING WALL
BLOCKS TOWARDS THE NORTH,
2. VIF — CONTRACTOR TO VERIFY IN THE FIELD AS NEEDED
3. THE DIMENSIONS OF THE CONCRETE BLOCK COVER FOR ABOVEGROUND PIPE
ARE NOT SPECIFIED. THE BLOCK COVER SHALL MATCH EXISTING RETAINING
WALL BLOCK COLOR AND STYLE. PRIOR TO INSTALLATION, THE BLOCK
COVER CONFIGURATION SHALL BE APPROVED BY URS. THE CONFIGURATION
SHALL BE DESIGNED IN ACCORDANCE WITH MANUFACTURER SPECIFICATIONS
FOR STRUCTURAL INTEGRITY INCLUDING THE USE OF ADHESIVE AND
FIBERGLASS PIN CONNECTORS AS NEEDED. THE CONFIGURATION SHALL BE
SUCH THAT ONLY THE TEXTURED FACES OF THE BLOCKS ARE VISIBLE.
4. DO NOT DAMAGE EXISTING GEOGRID REINFORCEMENT. GEOGRID IS ESTIMATED
TO EXIST AT A DEPTH OF 24" SOUTH OF THE RETAINING WALL. PIPING
SHALL BE INSTALLED ABOVE THE GEOGRID IN THIS AREA, AS SHOWN.
5. THE EXISTING BLOCKS ARE KEYSTONEOCOMPAC STRAIGHTFACE CONCRETE
RETAINING WALL BLOCK WITH MATCHING CAP UNITS. CONCRETE BLOCKS AND
GEOGRID ARE CONNECTED WITH FIBERGLASS PINS AND CAP UNITS ARE SET
WITH ADHESIVE. CONTRACTOR TO VERIFY EXISTING BLOCK SPECIFICATION.

D
� F
CONCRETE s s
WOOD
LANDING
SIGN
�'PRESERVE OR
REPLACE SIGN l\
d
DIRECT BURY
CONCRETE WELL HEAD
REPLACEMENT DETAIL (TYP)�
E 8 10
BOXES
REINSTALL OR REPLACE
PLASTIC WHEEL STOPS
O !r
/
/ / B ,
WELL VAULT / / /// s 9(TYP)
(TYP) A -10 CTS < o' ' 1
�'IV&
'P)
A
z
RESTORE CONCRETE
PAD TO MATCH
EXISTING
0 20
APPROX. SCALE, ft.
r.
C-
LEGEND
EXISTING CONCRETE CURB
— — — PAVEMENT RESTORATION BOUNDARY
CONCRETE CURB TO BE
REPLACED OR ADDED
_ LANDSCAPED SURFACE
- - RESTORATION BOUNDARY
Eg PROPOSED AIR INJECTION WELL
WITH VAULT
• PROPOSED DIRECT BURY AIR
INJECTION WELL
ZONE 1 RIPARIAN BUFFER
ZONE 2 RIPARIAN BUFFER
SURFACE RESTORATION PLAN
BP 825, RALEIGH, NORTH CAROLINA
bp
rmv
BP REMEDIATION MANAGEMENT
DRAWN TSH DATE
CHECKED CK 1 -28 -13
CONFIDENTIAL -ALL RIGHTS RESERVED - PROPERTY OF
EMS
RDU, NORTH CAROLINA 27560
SCALE SHEET SIZE SHEET
1 " =20' B C -8

2" BITUMINOUS CONCRETE
WEAR COURSE ASPHALT
I
6" COMPACTED
AGGREGATE BASE COURSE
W = WIDTH OF TRENCH
SECTION A
TYPICAL 8 9
2" BITUMINOUS CONCRETE
BASE COURSE ASPHALT
SAW CUT AND BREAK
r—OUT PAVEMENT
CONTINUOUS #3 BAR 6" I #3 ® 18" O.C.
REPLACEMENT ASPHALT
r 12..
STING PAVEMENT
POURED CONCRETE
EDGE OF TRENCH 12"
SECTION &
TYPICAL $ 9
NATIVE SOIL BACKFILL
EXISTING FINISH SURFACE TO
SURFACE MATCH EXISTING
`(SEE NOTE 3)
12" MIN.
4"
METALLIC -
TAPE
f i
TAPE
FILTER FABRIC
SECTION c
TYPICAL 8 9
PROVIDE A TROWELED FINISH
PROVIDE A BROOM ALONG SIDEWALK PERIMETER
FINISH IN TRANSVERSE TO MATCH EXISTING 2" BITUMINOUS CONCRETE
DIRECTION TO TRAFFIC EXISTING BASE COURSE ASPHALT
6x6— W1.4xW1.4 WWF FOOTBRIDGE 2" BITUMINOUS CONCRETE
SLOPE TRANSITION __ WEAR COURSE ASPHALT BREAK OUT OLD TRENCH
ALIGN r:
ROUGHEN SURFACE CONCRETE TO MATCH COVER PAVEMENT
ELEVATION AT FOOTBRIDGE
AND APPLY 2..
BONDING AGENT CLEAR Y '
10' —o"± a r NEW SECTION r
VERIFY IN FIELD OF CONCRETE � I EXISTING PAVEMENT
EXISTING
`,* SIDEWALK # 6" COMPACTED
SIDEWALK ;,i ��F °
�� AGGREGATE BASE COURSE
CONCRETDE 6° MINIMUM COMPACTED -i-•. ' j
ti � ,�;;
AGGREGATE BASE COURSE u` °. W = WIDTH OF PREVIOUS
del IRRIGATION LINE PAVEMENT CUT
SECTION D EXISTING 1 o' —o" t SECTION F
8 9 CONCRETE VERIFY IN FIELD PROVIDE AND INSTALL 8 9
SIDEWALK BOND BREAKER TYPICAL
ALONG THIS EDGE
PLAN VIEW E
8 9
NOTES:
1. POURED CONCRETE SHALL MATCH EXISTING CONCRETE THICKNESS WITH A MINIMUM
THICKNESS OF 4 INCHES.
2. PIPE PLACEMENT AND TRENCH BACKFILL DETAILS ARE SHOWN ON SHEET C -5.
3. SURFACE RESTORATION FOR TRENCHES INSTALLED WITHIN THE WOODED CREEK BANK
SHALL INCLUDE APPLICATION OF GRASS SEED AND STRAW COVER.
4. ALL AGGREGATE BASE COURSE AND NATIVE SOIL BACKFILL APPLIED ON CITY OF RALEIGH
PROPERTY SHALL BE COMPACTED TO 98% MODIFIED PROCTOR DENSITY. REMAINING
AREAS SHALL BE COMPACTED TO AT LEAST 95% MODIFIED PROCTOR DENSITY.

EXISTING Si
OR ASPHI
No.5 STEEL
REINFORCING BARS
WITH 4" X 4"—W2.1/2.1
OVERLAPPING WIRE
MESH AT THE TOP AND
BOTTOM
NOTE:
STEEL WELL VAULT
(32,000 LEIS SINGLE AXLE
,. — . ., " .1
OAREA)
SECTION A
TYPICAL 8 10
AIR INJECTION WELL VAULT
CONSTRUCTION DETAIL
8" MIN
ZAVEL
1. STEEL WELL VAULT SHALL BE SET APPROXIMATELY 1 INCH ABOVE THE
EXISTING SURFACE TO PREVENT SURFACE WATER FROM ENTERING THE
VAU LT.
FINISH SURFACE TO
MATCH EXISTING
EXISTING SOIL
8 "0 FERROUS
METAL PLATE
FILTER FABRIC
(CONTINUED FROM
TRENCH)
NATIVE SOIL BACKFILL
(CONTINUED FROM TRENCH)
"j III�IIII— / illl
12" MIN
4"
4" MIN ALL SIDES
PEA GRAVEL
SECTION B
TYPICAL 8 10
DIRECT BURY INJECTION WELL
CONSTRUCTION DETAIL