WQ0040658_More Information Received_20190510

INITIAL REVIEW
Reviewer Thornburg, Nathaniel
Project Number* WQ0040658
SUBMITTAL DATED: 5/10/2019
Project Contact Information
Rease provide inforrration on the person to be contacted by MB Staff regarding electronic submittal, confirmation of receipt, and other issues.
......................................................................................................................................................................................................................................................................................................................................................................................................
Name * Eleanor Mierzejewski
Email Address*
[e-mail]
Project Information
Application Type* r
New
r
Renewal
r
Annual Report
Permit Type * r
Wastewater Irrigation
r
Other Wastewater
r
Closed -Loop Recycle
r
Single -Family Residence
Wastewater Irrigation
Is a paper copy of the application being submitted?*
r Yes r Nor N/A
Permit Number* WQ0040658
Permittee * Charlotte Water
Phone Number*
7049416056
r Modification (Major or Minor)
r Additional Information
r Other
r High -Rate Infiltration
r Reclaimed Water
r Residuals
r Other
Facility Name * Mallard Creek WRF Reuse Line Extension to UNCC
Please provide comments/notes on your current submittal below.

Dear Ms. Monday,
On behalf of our client, Charlotte Water, we are re -submitting the following documents for your review and approval:
• Executed Reclaimed Water Systems Project Information Form RWPI 06-16
• NCDOT Encroachment Agreements
• NCDEQ Erosion and Sediment Control Agreement
• Documentation of threatened or endangered species
• Signed and sealed applicable Specifications
Responses to your review comments dated April 26, 2019 are addressed below.
1. Joseph C. Wilson is authorized to sign the application.
2. The highest and discharge elevations have been provided in the RWPI 06-16 form attached.
3. Station of air release valves have been provided in the RWPI 06-16 form attached.
4. Copies of the NCDOT Encroachment and NCDEQ Erosion and Sediment Control Plans are attached. Pending
documents are:
a. Flood study
b. 401/404 permits
c. All easements
Once obtained, we will send the documentation to your office. No construction will begin until these documents are
obtained and delivered to you.
5. Documentation of the presence of threatened or endangered species are attached in a table with the
documentation used to create the table.
6. The entire length of the pipeline, including crossings, will meet the piping and integrity testing procedures of water
main standards.
7. Signed and sealed applicable specifications are attached.
Please let me know if you have any questions or comments. I can be reached by phone and 704-941-6056 or by
email at [e-mail]. We look forward to your favorable review of this project.
Sincerely,
HAZEN AND SAWYER
Ellie Mierzejewski, El
Assistant Engineer
Please attach all information required or requested for this submittal to be review here.
Application Form Engineering Rans, Specifications, Calculations, Etc.)
WQ0040658 Re -Submittal Package 5-10-19.pdf 9.59MB
Wload only 1 R7F docurrent. K/Ultiple docurrents rrust be corrbined into one R7Ffile.

For neiv and modif cation permit applications, the paper copy is required to be submitted to the
Di,,isiom Be advised, applications will not be considered complete until both the paper and electronic
applications. have been received_ The paper copy shall include the follm ping:
• Application Farm
• All relevant attachments (talcs, soils report, specs, etc_)
• 1 full-size engineering plan set
• 2 11-17" engineering plan sets
• 1 extras set of specifications (in addition to the set of specifications provided in the
attachments)
• Fee (if required)
This shall be mailed to the following address:
By US_ Postal Service-
Di,,ision of Water Resources- Non -Discharge Branch
1617 Mail Service Center Raleigh NC 27699-1617
By Courier, -Special Delivery:
Division of Water Resources- Non -Discharge Branch
Nathaniel Thornburg- 9th Floor, Office #942 M
512 N_ Salisbury St_ Raleigh, NC 27604
For questions or problems contact Tessa Monday at 919.7073660 or Tessa_X%nday(dncdem_gov or
Sonia Graves at 919.707.3657 or Sonia Graves(dpcdenr.gov.
* I40 By checking this box I am acknowledging that I have read the above statement and agree
to send these documents as required to one of the address given above.
Signature
5,,,v '��
Submission Date 5/10/2019

enHazen and Sawyer
9101 Southern Pine Blvd. Suite 250
Charlotte, NC 28273 • 704.357.3150
May 10, 2019
NC Department of Environmental Quality
Water Resources Division
Water Quality Permitting
512 N. Salisbury Street
Raleigh, NC 27604
Attn: Tessa Monday
RE: Application No. WO0040658 Resubmittal
Charlotte Water, Charlotte, NC
Mallard Creek WRF Reuse Line Extension to UNCC
Reclaimed Water System Permit Request
Dear Ms. Monday,
On behalf of our client, Charlotte Water, we are re -submitting the following documents for your review and
approval:
• Executed Reclaimed Water Systems Project Information Form RWPI 06-16
• NCDOT Encroachment Agreements
• NCDEQ Erosion and Sediment Control Agreement
• Documentation of threatened or endangered species
• Signed and sealed applicable Specifications
Responses to your review comments dated April 26, 2019 are addressed below.
1.
Joseph C. Wilson is authorized to sign the application.
2.
The highest and discharge elevations have been provided in the RWPI 06-16 form
attached.
3.
Station of air release valves have been provided in the RWPI 06-16 form attached.
4.
Copies of the NCDOT Encroachment and NCDEQ Erosion and Sediment Control
Plans are attached. Pending documents are:
a. Flood study
b. 401/404 permits
c. All easements
Once obtained, we will send the documentation to your office. No construction will
begin until these documents are obtained and delivered to you.
5.
Documentation of the presence of threatened or endangered species are attached
a
0
in a table with the documentation used to create the table.
6.
The entire length of the pipeline, including crossings, will meet the piping and
integrity testing procedures of water main standards.
7.
Signed and sealed applicable specifications are attached.
hazenandsawyer.com

Hazen
Please let me know if you have any questions or comments. I can be reached by phone and 704-941-6056
or by email at emierzeiewski(Qhazenandsaw)/er.corn. We look forward to your favorable review of this
project.
Sincerely,
HAZEN AND SAWYER
�A�
Ellie Mierzejewski, El
Assistant Engineer
cc: Bill Deal, CLTWater
Jim Struve, Hazen
Page 2 of 2
hazenandsawyer.com

State of North Carolina
nUll?
Department of Environmental Quality
Division of Water Resources
15A NCAC 02U — RECLAIMED WATER SYSTEMS — DISTRIBUTION LINES
Division of Water Resources INSTRUCTIONS FOR FORM: RWDL 06-16 & SUPPORTING DOCUMENTATION
Please use the following instructions as a checklist in order to ensure all required items are submitted. Adherence to these
instructions and checking the provided boxes will help produce a quicker review time and reduce the amount of additional
information requested. Failure to submit all of the required items will lead to additional processing and review time for the
permit application.
For more information, visit the Water Quality Permitting Section's Non -Discharge Permitting Unit website
General — This application is for projects involving the construction of reclaimed water distribution lines that will supply reclaimed
water for conjunctive use activities. Unless otherwise noted, the Applicant shall submit one original and two copies of
the application and supporting documentation.
Do not submit this application without an associated Reclaimed Water Project Information (FORM: RWPI) form.
A. Reclaimed Water Distribution Lines (FORM: RWDL 06-16) Application (All application packages):
® Submit the completed and appropriately executed Reclaimed Water Distribution Lines (FORM: RWDL 06-16) form. Please
do not make any unauthorized content changes to this form. If necessary for clarity or due to space restrictions, attachments to
the application may be made, as long as the attachments are numbered to correspond to the section and item to which they
refer.
® The system name in Item II.1. shall be consistent with the user name on the plans, specifications, agreements, etc.
® The Professional Engineer's Certification on Page 5 of this form shall be signed, sealed and dated by a North Carolina licensed
Professional Engineer.
® The Applicant's Certification on Page 5 of this form shall be signed in accordance with 15A NCAC 02T .0106(b). The
application must be signed by a principal executive officer of at least the level of vice-president or his authorized representative
for a corporation; by a general partner for a partnership or limited partnership; by the proprietor for a sole proprietorship;
and by either an executive officer, an elected official in the highest level of elected office, or other authorized employee for a
municipal, state, or other public entity. An alternate person may be designated as the signing official if a delegation letter is
provided from a person who meets the criteria in 15A NCAC 02T .0106(b).
B. Property Ownership Documentation (All Application Packages):
® Per 15A NCAC 02U .0201(e) or 15A NCAC 02U .0202(f), the Applicant shall demonstrate that they are the owner of the
property where the reclaimed water lines will be installed. Documentation shall consist of one of the following (or a
combination of):
❑ Legal documentation of ownership (i.e., GIS, deed or article of incorporation), or
® Written notarized intent to purchase agreement signed by both parties with a plat or survey map, or
❑ An easement specifically indicating the intended use of the property and meeting the requirements of 15A NCAC 02L
.0107 , (i.e. municipality right of way) or
❑ A written notarized lease agreement signed by both parties, indicating the intended use of the property, as well as a plat
or survey map.
INSTRUCTIONS FOR FORM: RWDL 06-16 & SUPPORTING DOCUMENTATION Page 1 of 2

C. Engineering Plans (All Application Packages):
® Per 15A NCAC 02U .0201(c)(1) or .0202(c), submit standard size and 11 x 17-inch plan sets that have been signed, sealed and
dated by a North Carolina licensed Professional Engineer. At a minimum, the engineering plans shall include the following
items:
® Table of contents.
® A general location map with at least two geographic references and a vicinity map.
® Plan and profile views of all pump stations and reclaimed water line extensions as well as the proximity of the reclaimed
water line extensions to other utilities and natural features.
® Depict minimum separation distances required by 15A NCAC 02U .0403(h). (i), and 15A NCAC 02T .0305).
® Minimum cover in accordance with 15A NCAC 02T .0305(g)(4).
® Location and details of all pump stations.
® All labeling and color coding requirements per 15A NCAC 02U .0403.
® Plans shall represent a completed design and not be labeled with preliminary phrases (e.g., FOR REVIEW ONLY, NOT
FOR CONSTRUCTION, etc.) that indicate they are anything other than final specifications. However, the plans may be
labeled with the phrase: FINAL DESIGN - NOT RELEASED FOR CONSTRUCTION.
D. Specifications (All Application Packages):
® Per 15A NCAC 02U .0201(c) or .0202(c), submit specifications that have been signed, sealed and dated by a North Carolina
licensed Professional Engineer. At a minimum, the specifications shall include the following items:
❑ Specifications for standard equipment may be omitted for municipalities with approved standard specifications. Use of
standard specifications must be noted on each page of the plans.
® Table of contents with each section/page numbered.
® Detailed specifications for each reclaimed water line and pump station (as applicable).
® Site Work (i.e., earthwork, clearing, grubbing, excavation, trenching, backfilling, compacting, fencing, seeding, etc.)
® Materials (i.e., concrete, masonry, steel, painting, method of construction, etc.)
® Electrical (i.e., control panels)
® All labeling and color coding requirements per 15A NCAC 02U .0403.
® Specifications shall represent a completed design and not be labeled with preliminary phrases (e.g., FOR REVIEW ONLY,
NOT FOR CONSTRUCTION, etc.) that indicate they are anything other than final specifications. However, the
specifications may be labeled with the phrase: FINAL DESIGN - NOT RELEASED FOR CONSTRUCTION.
E. Engineering Calculations (All Application Packages):
® Per 15A NCAC 02U .0201(c) or .0202(c), submit calculations that have been signed, sealed and dated by allorth Carolina
licensed Professional Engineer. At a minimum, the calculations shall include the following items:
® Provide justification for the required pipe capacity, and details for how pipe sizes were determined.
® Minimum velocities to be maintained in the reclaimed water line.
® Friction/total dynamic head calculations and system curve analysis for each pump used.
® Pump selection information including pump curves, manufacturer's information, and recommended installation guidelines.
® Detailed specifications for each reclaimed water line and pump station (as applicable).
❑ Floatation calculations for any pump stations entirely or partially below grade.
❑ For connection to a pump station, submit an evaluation of the existing pump station's ability to handle peak flows. Provide
calculations to detail how peak flows were determined.
® For connection to a force main, submit an evaluation of the existing force main based on peak flows to the proposed project
and peak flows already tributary to the existing force main.
ONE ORIGINAL AND TWO COPIES OF THE COMPLETED APPLICATION AND SUPPORTING DOCUMENTATION
SHALL BE SUBMITTED TO:
NORTH CAROLINA DEPARTMENT OF ENVIRONMENTAL QUALITY
DIVISION OF WATER RESOURCES
WATER QUALITY PERMITTING SECTION
NON -DISCHARGE PERMITTING UNIT
By U.S. Postal Service:
1617 MAIL SERVICE CENTER
RALEIGH, NORTH CAROLINA 27699-1617
TELEPHONE NUMBER: [phone]
By Courier/Special Delivery:
512 N. SALISBURY STREET
RALEIGH, NORTH CAROLINA 27604
FAX NUMBER: [phone]
INSTRUCTIONS FOR FORM: RWDL 06-16 & SUPPORTING DOCUMENTATION Page 2 of 2

State of North Carolina
DWR
Department of Environmental Quality
Division of Water Resources
Division of Water Resources 15A NCAC 02U — RECLAIMED WATER SYSTEMS — DISTRIBUTION LINES
FORM: RWDL 06-16
L CONTACT INFORMATION:
1. Applicant's name: Charlotte Water
Mailing address: 5100 Brookshire Blvd.
City: Charlotte State: NC Zip: 28216-
Telephone number: [phone] Email Address: cwilson&charlottenc.gov
2. Signature authority's name: Carl Wilson (per 15A NCAC 02T .0106) Title: Chief Engineer
3. Consulting Engineer's name: James Struve License Number: 18179 Firm: Hazen and Sawyer
Mailing address: 9101 Southern Pine Blvd. Suite 250
City: Charlotte State: NC Zip: 28273-
Telephone number: [phone] Email Address: islruve(&hazenandsawyer.com
IL DISTRIBUTION SYSTEM INFORMATION
1. Distribution system project name (name of subdivision, shopping center, etc.): Mallard Creek WRF Reuse Line Extension to
UNCC
2. Project county: Mecklenburg
3. USGS map name:
4. Owner of reclaimed water generating facility: Charlotte Water
5. Permit number of reclaimed water generating facility: W00013252
6. List the owner(s) of any intermediate reclaimed water lines if different from the applicant, or the generating facility.
7. Permit number for reclaimed waterline immediately upstream: W00013252
8. Pipe diameter for for reclaimed water line immediately upstream: 24"
9. Specify the proposed destination of the reclaimed water: UNC Charlotte Campus
10. Capacity of proposed distribution system: 1 million gallons per day
11. Explanation of how capacity was determined: Hydraulic Modeling
III. DISTRIBUTION LINE DESIGN INFORMATION
1. Complete the table below for by providing the required information on the proposed distribution lines:
Diameter (inches)
Length
(linear feet)
Pipe Material
Ilrgh Elevation
(ft)
Discharge Elevation
(ft)
16
10,225
DIP
608.5
584.4
24
200
DIP
609
608.5
2. Station location of air release valves: 4+43.00, 22+04.26, 47+60.00, 59+64.00, 92+75.71
Note: Air release valves must be provided at all high points along the line where the elevation difference exceeds 10 ft.
FORM: RWDL 06-16 Page 1 of 5

III. DISTRIBUTION LINE DESIGN INFORMATION (Continued)
3. Complete the table below by providing the location of each design criteria in the specification and/or plans in accordance with
15A NCAC 02U .0403. Items that are not applicable shall be marked N/A.
Design Criteria
Page Number in Plans
Page Number in Specifications
Labeling on reclaimed water piping, valves, storage
All
15030
facilities, and outlets
Color coding on reclaimed water piping, valves, etc.
N/A
15030
Method of securing valves and outlet for operation by
N/A
N/A
authorized personnel only
Locking mechanism for hose bibs
N/A
N/A
Cross connection control devices
N/A
N/A
IV. SETBACKS (15A NCAC 02U .0701)
1. Provide the actual minimum distance (in feet) from any reclaimed water storage units and/or pump station within the
distribution system to each item listed (distances greater than 500 feet may be marked N/A):
Setback Parameter
Pump stations within
Reclaimed Water
distribution system
Storage Units
Required
Actual
Required
Actual
Any private or public water supply source
N/A
100
N/A
Any property line
N/A:1
50
N/A
Any well with exception of monitoring wells
100
N/A
100
N/A
Surface waters (streams — intermittent and perennial,
100
N/A
50
N/A
perennial waterbodies, and wetlands) classified as SA
Surface waters (streams — intermittent and perennial,
25
N/A
50
N/A
perennial waterbodies, and wetlands) classified as SA
2. Do the pump stations and storage units comply with all setbacks found in the river basin rules (15A NCAC 2B .0200)?
El Yes or❑No
✓ If no, list non -compliant setbacks:
3. Are any setback waivers required in order to comply with 15A NCAC 02U .0701? ❑ Yes or ❑ No
✓ If yes, have these waivers been written, notarized, signed by all parties involved and recorded with the County Register of
Deeds? ❑ Yes or ❑ No
✓ If yes, have the required Non -Discharge Wastewater System Waiver (FORM: NDWSW) forms been included with this
application package? ❑ Yes or ❑ No
FORM: RWDL 06-16 Page 2 of 5

V. SEPARATION DISTANCES
1. Provide the actual minimum separation distance (in feet) from the reclaimed water distribution system to each item listed in
accordance with 15A NCAC 02U .0403(h), (i), and (j):
Separation Parameter
Horizontal
Vertical
Required
Actual
Required
Actual
Any water line (feet)
10
0' (Crossing)
1.5
4
Any well
50
N/A
N/A
Sewer lines (reclaimed over sewer)
2
0' (Crossing)
1.5
2.5
Final earth grade
N/A
3
3
2. Are the separation requirements listed above met? ❑ Yes or ® No
✓ If No, has documentation been provided to show that piping and integrity testing procedures meet water main standards in
accordance with 15A NCAC 18C? ® Yes or ❑ No
Note: In no case shall reclaimed water lines be closer than 25 feet to a private well.
VI. PUMP STATION INFORMATION
IF MORE THAN ONE PUMP STATION, PROVIDE ADDITIONAL COPIES OF THIS PAGE AS NECESSARY.
1. Are there any reclaimed water pump stations proposed as part of the distribution system? ❑ Yes or ® No
✓ If no, then skip the remaining items in Section VI.
2. Complete the table below by providing the required information regarding the reclaimed water pump station(s)
Pump Station Design
Plan Sheet
Number
Specification
Page Number
Internal dimensions (L x W x H or (p x H)
ft
ft
ft
Volume
gallons
Inlet Elevation
It
Outlet Elevation
It
Number of pumps
Pump capacity
GPM
Lead pump on elevation
It
Lag pump on elevation
It
Lead pump off elevation
ft
Lag pump off elevation
ft
High water elevation
It
Audible/Visual high water alarm
3. What is the 100-year flood elevation? (ft)
4. Precautions to be taken to protect the pump station from flooding: (ft)
FORM: RWDL 06-16 Page 3 of 5

VILSTORAGE TANK INFORMATION
IF MORE THAN ONE STORAGE TANK, PROVIDE ADDITIONAL COPIES OF THIS PAGE AS NECESSARY.
1. Are there any reclaimed water storage tanks proposed as part of the distribution system? ❑ Yes or ® No
✓ If no, then skip the remaining items in Section VII.
2. Complete the table below by providing the required information regarding the reclaimed water storage tank(s)
Storage Tank Design
Plan Sheet
Number
Specification
Page Number
Type of storage tank
Select
Internal dimensions (L x W x H or (p x H)
ft
ft
ft
Storage Volume
gallons
Inlet Elevation
ft
Outlet Elevation
ft
High water elevation
ft
Audible/Visual high water alann
3. What measures will be taken to reduce the risk of overflow?
FORM: RWDL 06-16 Page 4 of 5

Professional Engineer's Certification:
attest that this application for -ON , WRS
?APW- —,X3, oywlx- has been reviewed by me and is accurate, complete and
consistent with the information supplied in the engineering plans, calculations, and all other supporting documentation to the best of my
knowledge. I further attest that to the best of my knowledge the proposed design has been prepared in accordance with this application
package and its instructions as well as all applicable regulations and statutes. Although other professionals may have developed certain
portions of this submittal package, inclusion of these materials under my signature and seal signifies that I have reviewed this material and
have judged it to be consistent with the proposed design. Note: In accordance with NC General Statutes 143-215.6A and 143-215.613,
any person who knowingly makes any false statement, representation, or certification in any application package shall be guilty of a Class
2 misdemeanor, which may include a fine not to exceed $10,000 as well as civil penalties up to $25.000 per violation.
North Carolina Professional Engineer's seal, signature, and date:
CARD,_,
S&
18179 a 2//4) 0
Itt £aE
Applicant's Certification (signing authority must be in compliance with 15A NCAC 02T.0106):
I, Joseph C. Wilson Chief Engineer
(signing authority name — PLEASE PRINT) (title)
attest that this application for Mallard Creek WRF Reuse Line Extension to UNCC
(facility name)
has been reviewed by me and is accurate and complete to the best of my knowledge. I understand that any discharge of wastewater from
this non -discharge system to surface waters or the land will result in an immediate enforcement action that may include civil penalties,
injunctive relief, and/or criminal prosecution. I will make no claim against the Division of Water Resources should a condition of this
permit be violated. I also understand that if all required parts of this application package are not completed and that if all required
supporting information and attachments are not included, this application package will be returned to me as incomplete. I further certify
that the applicant or any affiliate has not been convicted of an environmental crime, has not abandoned a wastewater facility without proper
closure, does not have an outstanding civil penalty where all appeals have been exhausted or abandoned, are compliant with any active
compliance schedule, and do not have any overdue annual fees under Rule 15A NCAC 02U .0105. Note: In accordance with NC General
Statutes 143-215.6A and 143-215.613, any person who knowingly makes any false statement, representation, or certification in any
application package shall be guilty of a Class 2 misdemeanor, which may include a fine not to exceed $10,000 as well as civil penalties
up to $25,000 per violation,
Bov-
Signature: Date: Lo f /
U I
FORM: RWDL 06-16 Page 5 of 5

STATE OF NORTH CAROLINA
DEPARTMENT OF TRANSPORTATION
Roy COOPER
GOVERNOR
December 27, 2018
DIVISION 10
Eleanor Mierzejewski, EIT
Hazen and Sawyer
9101 Southern Pine Blvd.
Charlotte, NC 28273
JAmES H. TRomom III
SECRETARY
SUBJECT: Utility Encroachment Contract — AT&T — Approval to bore approximately
165' of 24" water line under N. Tryon St. (US 29) and approximately 100' of 16"
water line under Mallard Creek Ch. Rd. (SR 5394). Respectively located 1,500'
east of the intersection of I-485 and US 29, and 800' south of the intersection of
US 29 and Mallard Creek Ch. Rd., in Mecklenburg County.
ENCROACHMENT NUMBER: E102-060-18-00846
Job Number: 32270-016
Dear Ms. Mierzejewski:
Enclosed is an executed copy of the subject encroachment. This encroachment is approved, and
subject to the attached special provisions. Note; work shall be performed at night (8:00pm —
6:00am) or on the weekend (Friday 8:00pm — Monday 6:00am).
Cordially,
DocuSigned by:
4F6F339AF0394E8...
J. Scott Cole, P.E.
Division Engineer
JSC/jct
Enclosure
Cc: Mr. Robert Memory, State Utility Right of way Agent (e-file)
Mrs. Wendy Taylor, P.E., District Engineer
Mr. Jon C. Hinson, E.I., County Maintenance Engineer
File
Mailing Address: Telephone: [phone] Location:
NC DEPARTMENT OF TRANSPORTATION Fax: [phone] DISTRICT DRIVE
DIVISION OF HIGHWAYS Customer Service: 1-877-368-4968 CHARLOTTE, NC 28213
7605 DISTRICT DRIVE
CHARLOTTE, NC 28213
Website: www.ncdot.gov

Mallard Creek WRF STATE OF NORTH CAROLINA
ROUTE US-29, SR 5394 PROJECT Reuse Line Extension COUNTY OF Mecklenburg
DEPARTMENT OF TRANSPORTATION RIGHT OF WAY ENCROACHMENT AGREEMENT
-AND- PRIMARY AND SECONDARY HIGHWAYS
Charlotte Water
Charlotte, NC
THIS AGREEMENT, made and entered into this the 27th day of December 20 18 by and between the Department
of Transportation, party of the first part; and
Charlotte Water
5100 Brookshire Blvd, Charlotte, NC party of the second part,
WITNESSETH
THAT WHEREAS, the party of the second part desires to encroach on the right of way of the public road designated as
Route(s) US-29, SR 5394 , located In Charlotte, NC, this project crosses US-29
Approximately 1,500 LF east of the intersection of I-485 and US-29. After crossing US-29 the line generally follows Mallard
Creek, and crosses SR 5394 (Mallard Creek Church Road), approximately 800 LF south of the intersection of US-29 and SR
5394 in an existina 60" DIP casina. The line then terminates .
with the construction and/or erection of: Approximately 10,500 LF of new 24" and 16" reclaimed water line, new air release
valves, one bore / tunnel under US-29 and an installation of new 16" reclaimed water line in an existing casing pipe under SR
5394.
WHEREAS, it is to the material advantage of the party of the second part to effect this encroachment, and the party of
the first part in the exercise of authority conferred upon it by statute, is willing to permit the encroachment within the limits of the
right of way as indicated, subject to the conditions of this agreement;
NOW, THEREFORE, IT IS AGREED that the party of the first part hereby grants to the party of the second part the right
and privilege to make this encroachment as shown on attached plan sheet(s), specifications and special provisions which are
made a part hereof upon the following conditions, to wit:
That the installation, operation, and maintenance of the above described facility will be accomplished in accordance with the party of
the first part's latest POLICIES AND PROCEDURES FOR ACCOMMODATING UTILITIES ON HIGHWAY RIGHTS -OF -WAY, and such
revisions and amendments thereto as may be in effect at the date of this agreement. Information as to these policies and procedures
may be obtained from the Division Engineer or State Utility Agent of the party of the first part.
That the said party of the second part binds and obligates himself to install and maintain the encroaching facility in such safe and
proper condition that it will not interfere with or endanger travel upon said highway, nor obstruct nor interfere with the proper maintenance
thereof, to reimburse the party of the first part for the cost incurred for any repairs or maintenance to its roadways and structures
necessary due to the installation and existence of the facilities of the party of the second part, and if at any time the party of the first part
shall require the removal of or changes in the location of the said facilities, that the said party of the second part binds himself, his
successors and assigns, to promptly remove or alter the said facilities, in order to conform to the said requirement, without any cost to the
party of the first part.
That the party of the second part agrees to provide during construction and any subsequent maintenance proper signs, signal lights,
flagmen and other warning devices for the protection of traffic in conformance with the latest Manual on Uniform Traffic Control Devices
for Streets and Highways and Amendments or Supplements thereto. Information as to the above rules and regulations may be obtained
from the Division Engineer of the party of the first part.
That the party of the second part hereby agrees to indemnify and save harmless the party of the first part from all damages and
claims for damage that may arise by reason of the installation and maintenance of this encroachment.
That the party of the second part agrees to restore all areas disturbed during installation and maintenance to the satisfaction of the
Division Engineer of the party of the first part. The party of the second part agrees to exercise every reasonable precaution during
construction and maintenance to prevent eroding of soil, silting or pollution of rivers, streams, lakes, reservoirs, other water
impoundments, ground surfaces or other property, or pollution of the air. There shall be compliance with applicable rules and regulations
of the North Carolina Division of Environmental Management, North Carolina Sedimentation Control Commission, and with ordinances
and regulations of various counties, municipalities and other official agencies relating to pollution prevention and control. When any
installation or maintenance operation disturbs the ground surface and existing ground cover, the party of the second part agrees to
remove and replace the sod or otherwise reestablish the grass cover to meet the satisfaction of the Division Engineer of the party of the
first part.
That the party of the second part agrees to assume the actual cost of any inspection of the work considered to be necessary by the
Division Engineer of the party of the first part.
That the party of the second part agrees to have available at the construction site, at all times during construction, a copy of this
agreement showing evidence of approval by the party of the first part. The party of the first part reserves the right to stop all work unless
evidence of approval can be shown.
Provided the work contained in this agreement is being performed on a completed highway open to traffic, the party of the second part
agrees to give written notice to the Division Engineer of the party of the first part when all work contained herein has been completed.
Unless specifically requested by the party of the first part, written notice of completion of work on highway projects under construction will
not be required.
That in the case of noncompliance with the terms of this agreement by the party of the second part, the party of the first part reserves
the right to stop all work until the facility has been brought into compliance or removed from the right of way at no cost to the party of the
first part.
That it is agreed by both parties that this agreement shall become void if actual construction of the work contemplated herein is not
begun within one (1) year from the date of authorization by the party of the first part unless written waiver is secured by the party of the
second part from the party of the first part.
During the performance of this contract, the second party, for itself, its assignees and successors in interest (hereinafter referred to as
the "contractor"), agrees as follows:
a. Compliance with Regulations: The contractor shall comply with the Regulations relative to nondiscrimination in Federally -
assisted programs of the U. S. Department of Transportation, Title 49, Code of Federal Regulations, Part 21, as they may be
amended from time to time, (hereinafter referred to as the Regulations), which are herein incorporated by reference and
FORM R/W 16.1 (Rev. July 1, 1977)

made a part of this contract.
b. Nondiscrimination: The contractor, with regard to the work performed by it during the contract, shall not discriminate on the
grounds of race, color, or national origin in the selection and retention of subcontractors, including procurements of materials
and leases of equipment. The contractor shall not participate either directly or indirectly in the discrimination prohibited by
Section 21.5 of the Regulations, including employment practices when the contract covers a program set forth in Appendix 8
of the Regulations.
c. Solicitations for Subcontracts including Procurements of Materials and Equipment: In all solicitations either by competitive
bidding or negotiation made by the contractor for work to be performed under a subcontract, including procurements of
materials or leases of equipment, each potential subcontractor or supplier shall be notified by the contractor of the
contractor's obligations under this contract and the Regulations relative to nondiscrimination on the grounds of race, color,
or national origin.
d. Information and Reports: The contractor shall provide all information and reports required by the Regulations, or directives
issued pursuant thereto, and shall permit access to its books, records, accounts, other sources of information, and its
facilities as may be determined by the Department of Transportation or the Federal Highway Administration to be pertinent to
ascertain compliance with such Regulations or directives_ Where any information required of a contractor is in the exclusive
possession of another who fails or refuses to furnish this information, the contractor shall so certify to the Department of
Transportation, or the Federal Highway Administration as appropriate, and shall set forth what efforts it has made to obtain
the information.
e. Sanctions for Noncompliance: In the event of the contractor's noncompliance with the nondiscrimination provisions of this
contract, the Department of Transportation shall impose such contract sanctions as it or the Federal Highway Administration
may determine to be appropriate, including, but not limited to,
(1) withholding of payments to the contractor under the contract until the contractor complies, and/or
(2) cancellation, termination or suspension of the contract, in whole or in part,
f_ Incomorafion of Provisions: The contractor shall include the provisions of paragraphs "a" through "f' in every subcontract,
including procurements of materials and leases of equipment, unless exempt by the Regulations, or directives issued
pursuant thereto. The contractor shall take such action with respect to any subcontract or procurement as the Department
of Transportation or the Federal Highway Administration may direct as a means of enforcing such provisions including
sanctions for noncompliance: Provided, however, that, in the event a contractor becomes involved in, or is threatened with,
litigation with a subcontractor or supplier as a result of such direction, the contractor may request the Department of
Transportation to enter into such litigation to protect the interests of the State, and, in addition, the contractor may request
the United States to enter into such litigation to protect the interests of the United States.
RAN (161) : Party of the Second Part certifies that this agreement is true and accurate copy of the form
R/W (161) incorporating all revisions to date.
IN WITNESS WHEREOF, each of the parties to this agreement has caused the same to be executed the day and
year first above written.
ATTX4T OR ITN S:
INSTRUCTIONS
DEPART�M�N 1, 9f, TRANSPORTATION
BY: I J• SCO{f (yh: ,
Second Party
When the applicant is a corporation or a municipality, this agreement must have the corporate seal and be attested by the corporation
secretary or by the empowered city official, unless a waiver of corporate seal and attestation by the secretary or by the empowered City
official is on file in the Raleigh office of the Manager of Right of Way. In the space provided in this agreement for execution, the name of
the corporation or municipality shall be typed above the name, and title of all persons signing the agreement should be typed directly
below their signature.
When the applicant is not a corporation, then his signature must be witnessed by one person. The address should be included in this
agreement and the names of all persons signing the agreement should be typed directly below their signature.
This agreement must be accompanied, in the form of an attachment, by plans or drawings showing the following applicable information:
1. All roadways and ramps.
2. Right of way lines and where applicable, the control of access lines.
3. Location of the existing and/or proposed encroachment.
4. Length, size and type of encroachment.
5. Method of installation.
6. Dimensions showing the distance from the encroachment to edge of pavement, shoulders, etc.
7. Location by highway survey station number_ If station number cannot be obtained, location should be shown by
distance from some identifiable point, such as a bridge, road, intersection, etc. (To assist in preparation ofthe
encroachment plan, the Department's roadway plans may be seen at the various Highway Division Offices, or at the
Raleigh office.)
8. Drainage structures or bridges if affected by encroachment (show vertical and horizontal dimensions from
encroachment to nearest part of structure).
9. Method of attachment to drainage structures or bridges.
10. Manhole design_
11. On underground utilities, the depth of bury under all traveled lanes, shoulders, ditches, sidewalks, etc.
12. Length, size and type of encasement where required.
13. On underground crossings, notation as to method of crossing - boring and lacking, open cut, etc.
14. Location of vents.
GENERAL REQUIREMENTS
Any attachment to a bridge or other drainage structure must be approved by the Head of Structure Design in Raleigh
prior to submission of encroachment agreement to the Division Engineer.
All crossings should be as near as possible normal to the centerline of the highway.
Minimum vertical clearances of overhead wires and cables above all roadways must conform to clearances set out in
the National Electric Safety Code.
Encasements shall extend from ditch line to ditch line in cut sections and 5' beyond toe of slopes in fill sections.
All vents should be extended to the right of way line or as otherwise required by the Department.
All pipe encasements as to material and strength shall meet the standards and specifications of the Department.

Any special provisions or specifications as to the performance of the work or the method of construction that maybe
required by the Department must be shown on a separate sheet attached to encroachment agreement provided that
such information cannot be shown on plans or drawings.
The Department's Division Engineer should be given notice by the applicant prior to actual starting of installation
included in this agreement.

STATE OF NORTH CAROLINA
DEPARTMENT OF TRANSPORTATION
Roy COOPER
GOVERNOR
April 10, 2019
COUNTY: Mecklenburg
SUBJECT: Encroachment Contract E102-060-18-00847 — Charlotte Water
Mr. Charles Bliss
Engineering Division Manager
Charlotte Water
5100 Brookshire Blvd.
Charlotte, NC 28216
Dear Mr. Bliss:
JAmES H. TROGDON, III
SECRETARY
Attached for your files is a copy of the above -referenced Right of Way Encroachment Contract,
properly executed. This contract covers the following:
Installation of 820' of 16" PC 350 restrained joint ductile iron pipe for reclaimed water by open
cut method under the I-485 bridges located southeast of the I-485/US 29 intersection in
Charlotte.
APPROVED SUBJECT TO: Attached Special Provisions
Carl Barclay, MPA, PE
State Utilities Manager
DocuSigned by:
C1AAA5BAED54467...
Larry D. Sanders, PE
State Encroachments Engineer
LDS/jds
Attachment
Mailing Address: Telephone: [phone]
NC DEPARTMENT OF TRANSPORTATION Fax: [phone]
1555 MAIL SERVICE CENTER Customer Service: 1-877-368-4968
RALEIGH, NC 27699-1555
Website: www.ncdot.gov
Location:
1020 BIRCH RIDGE DRIVE
RALEIGH, NC 27610

ROUTE 1-485
STATE PROJECT Mallard Creek WRF STATE OF NORTH CAROLINA
FEDERAL PROJECT Reuse Line Extension COUNTY Mecklenburg
DEPARTMENT OF TRANSPORTATION RIGHT OF WAY
-AND- ENCROACHMENT AGREEMENT
Charlotte Water INTERSTATE AND OTHER CONTROLLED
Charlotte, NO ACCESS HIGHWAYS
4/10/2019
THIS AGREEMENT, made and entered into this the day of , 20 by and between the Department
of Transportation, party of the first part; and Charlotte Water
5100 Brookshire Blvd, Charlotte, NO 28216
WITNESSETH
party of the second part,
THAT WHEREAS, the party of the second part desires to encroach on the right of way of the public road designated as
Route(s)
1-485
, located in Charlotte, NC, beginning at approximately
1,000 LF south-east of the 1-485 and US-29 intersection, crossing under the 1-485 bridges as shown on the contract drawings
with the construction and/or erection of: Approximately 820 LF within the NCDOT R1W of new 16" diameter PC350 restrained
joint ductile iron pipe for reclaimed water installed via open -cut method under the 1-485 bridges as shown on the contract
WHEREAS, it is to the material advantage of the party of the second part to effect this encroachment, and the party of
the first part in the exercise of authority conferred upon it by statute, is willing to permit the encroachment within the limits of the
right of way as indicated, subject to the conditions of this agreement;
NOW, THEREFORE, IT IS AGREED that the party of the first part hereby grants to the party of the second part the right
and privilege to make this encroachment as shown on attached plan sheet(s), specifications and special provisions which are
made a part hereof upon the following conditions, to wit:
That the installation, operation, and maintenance of the above described facility will be accomplished in accordance with
the party of the first part's latest POLICIES AND PROCEDURES FOR ACCOMMODATING UTILITIES ON HIGHWAY
RIGHTS -OF -WAY, and such revisions and amendments thereto as may be in effect at the date of this agreement. Information
as to these policies and procedures may be obtained from the Division Engineer or State Utility Agent of the party of the first
part.
That the said party of the second part hereby agrees that access for servicing its facilities will be limited to access via (a)
frontage roads where provided, (b) nearby or adjacent public roads and street, or (c) trails along or near the highway right of
way lines, connecting only to an intersecting road; from any one or all of which entry may be made to the outer portion of the
highway right of way. The party of the second part's rights of access to the through -traffic roadways and ramps shall be subject
to the same rules and regulations as apply to the general public, except if an emergency situation occurs, and the usual means
of access for service operation as herein provided will not permit the immediate action required by the party of the second part
in making emergency repairs as required for the safety and welfare of the public, the party of the second part shall have a
temporary right of access to and from the through -traffic roadways and ramps as necessary to accomplish the required
emergency repairs, provided that the party of the second part complies with the regulations established by the party of the first
part for policing and control to protect the highway users.
That the said party of the second part binds and obligates himself to install and maintain the encroaching facility in such
safe and proper condition that it will not interfere with or endanger travel upon said highway, nor obstfuct nor interfere with the
proper maintenance thereof, to reimburse the party of the first part for the cost incurred for any repairs or maintenance to its
roadways and structures necessary due to the installation and existence of the facilities of the party of the second part, and if at
any time the party of the first part shall require the removal of or changes in the location of the said facilities, that the said party
of the second part binds himself, his successors and assigns, to promptly remove or alter the said facilities, in order to conform
to the said requirement, without any cost to the party of the first part.
That the party of the second part agrees to provide during construction and any subsequent maintenance proper signs,
signal lights, flagmen and other warning devices for the protection of traffic in conformance with the latest Manual on Uniform
Traffic Control Devices for Streets and Highways and Amendments or Supplements thereto. Information as to the above rules
and regulations may be obtained from the Division Engineer of the party of the first part.
That the party of the second part hereby agrees to indemnify and save harmless the party of the first part from all
damages and claims for damage that may arise by reason of the installation and maintenance of this encroachment.
That the party of the second part agrees to restore all areas disturbed during installation and maintenance to the
satisfaction of the Division Engineer of the party of the first part. The party of the second part agrees to exercise every
reasonable precaution during construction and maintenance to prevent eroding of soil; silting or pollution of rivers, streams,
lakes, reservoirs, other water impoundments, ground surfaces or other property; or pollution of the air. There shall be
compliance with applicable rules and regulations of the North Carolina Division of Environmental Management, North Carolina
Sedimentation Control Commission, and with ordinances and regulations of various counties, municipalities and other official
agencies relating to pollution prevention and control. When any installation or maintenance operation disturbs the ground
surface and existing ground cover, the party of the second part agrees to remove and replace the sod or otherwise reestablish
the grass cover to meet the satisfaction of the Division Engineer of the party of the first part.
That the party of the second part agrees to assume the actual cost of any inspection of the work considered to be
necessary by the Division Engineer of the party of the first part.
That the party of the second part agrees to have available at the construction site, at at] times during construction, a copy
of this agreement showing evidence of approval by the party of the first part. The party of the first part reserves the right to stop
all work unless evidence of approval can be shown.
FORM RAW 16.2
Rev. July 1, 1977 Page 1 of 3

Provided the work contained in this agreement is being performed on a completed highway open to traffic; the party of
the second part agrees to give written notice to the Division Engineer of the party of the first part when all work contained herein
has been completed. Unless specifically requested by the party of the first part, written notice of completion of work on highway
projects under construction will not be required.
That in the case of noncompliance with the terms of this agreement by the party of the second part, the party of the first
part reserves the right to stop all work until the facility has been brought into compliance or removed from the right of way at no
cost to the party of the first part.
That it is agreed by both parties that this agreement shall become void if actual construction of the work contemplated
herein is not begun within one (1) year from the date of authorization by the party of the first part unless written waiver is
secured by the party of the second part from the party of the first part.
During the performance of this contract, the second party, for itself, its assignees and successors in interest (hereinafter
referred to as the "contractor"), agrees as follows:
a. Compliance with Regulations: The contractor shall comply with the Regulations relative to nondiscrimination in
Federally -assisted programs of the U. S. Department of Transportation, Title 49, Code of Federal Regulations,
Part 21, as they may be amended from time to time, (hereinafter referred to as the Regulations), which are
herein incorporated by reference and made a part of this contract.
b. Nondiscrimination: The contractor, with regard to the work performed by it during the contract, shall not
discriminate on the grounds of race, color, or national origin in the selection and retention of subcontractors,
including procurements of materials and leases of equipment. The contractor shall not participate either directly
or indirectly in the discrimination prohibited by Section 21,5 of the Regulations, including employment practices
when the contract covers a program set forth in Appendix B of the Regulations.
c. Solicitations for Subcontracts, including Procurements of Materials and Equipment: In all solicitations either by
competitive bidding or negotiation made by the contractor for work to be performed under a subcontract,
including procurements of materials or leases of equipment, each potential subcontractor or supplier shall be
notified by the contractor of the contractor's obligations under this contract and the Regulations relative to
nondiscrimination on the grounds of race, color, or national origin.
d. Information and Reports: The contractor shall provide all information and reports required by the Regulations, or
directives issued pursuant thereto, and shall permit access to its books, records, accounts, other sources of
information, and its facilities as may be determined by the Department of Transportation or the Federal Highway
Administration to be pertinent to ascertain compliance with such Regulations or directives. Where any
information required of a contractor is in the exclusive possession of another who fails or refuses to furnish this
information, the contractor shall so certify to the Department of Transportation, or the Federal Highway
Administration as appropriate, and shall set forth what efforts it has made to obtain the information.
e. Sanctions for Noncompliance: In the event of the contractor's noncompliance with the nondiscrimination
provisions of this contract, the Department of Transportation shall impose such contract sanctions as it or the
Federal Highway Administration may determine to be appropriate, including, but not limited to,
(1) withholding of payments to the contractor under the contract until the contractor
complies, andlor
(2) cancellation, termination or suspension of the contract, in whole or in part.
f. Incorporation of Provisions: The contractor shall include the provisions of paragraphs "a" through 'T' in every
subcontract, including procurements of materials and leases of equipment, unless exempt by the Regulations, of
directives issued pursuant thereto. The contractor shall take such action with respect to any subcontract or
procurement as the Department of Transportation or the Federal Highway Administration may direct as a means
of enforcing such provisions including sanctions for noncompliance: Provided, however, that, in the event a
contractor becomes involved in, or is threatened with, litigation with a subcontractor or supplier as a result of
such direction, the contractor may request the Department of Transportation to enter into such litigation to
protect the interests of the State, and, in addition, the contractor may request the United States to enter into
such litigation to protect the interests of the United States.
RAN (162) : Party of the Second Part certifies that this agreement is true and accurate copy of the form
R!W (162) incorporating all revisions to date.
IN WITNESS WHEREOF, each of the parties to this agreement has caused the same to he executed the day and year first
above written.
ATTEST OR WITNESS:
al-11-�
dimt f A--, Al. DDf-A-�-
DocuSigned by: �DEPARTMENT OF TRANSPORTATION
state Encroachments Engineer
C1AAA5BAED54467...
L
Page 2 of 3

INSTRUCTIONS
When the applicant is a corporation or a municipality, this agreement must have the corporate seal and be attested
by the corporation secretary or by the empowered city official, unless a waiver of corporate seal and attestation by
the secretary or by the empowered City official Is on file in the Raleigh office of the Manager of Right of Way. In the
space provided in this agreement for execution, the name of the corporation or municipality shall be typed above the
name, and title of all persons signing the agreement should be typed directly below their signature.
When the applicant is not a corporation, then his signature must be witnessed by one person. The address should
be included in this agreement and the names of all persons signing the agreement should be typed directly below
their signature.
GENERAL REQUIREMENTS
1. Wherever possible, freeway crossing should be parallel to and within the prevailing right of way of intersecting
roads.
2. Crossings should be as near as possible normal to the center line of the freeway.
3. Parallel encroachments will not be permitted except outside of control of access lines.
4. The Department's Division Engineer should be given notice by the applicant prior to actual starting of
installations included in this agreement.
For Overhead Wire Lines
Minimum vertical clearances of overhead wires above all roadways must conform to clearances set out in the
National Electric Safety Code.
Supporting poles or structures must be clear of control of access lines, and be at least 30 feet clear of the
edge of shoulders of through lanes and 20 feet clear of the shoulders of interchange ramps.
For Underground Utilities
1. Open -cut installation for crossings will be permitted only when a highway project is in rough grading stage prior
to paving. Generally, on rough grading projects, open -cut will not be permitted in fills of over 10 feet in depth
and back filled material must be compacted to maximum density meeting Department requirements.
2. Encasements under an existing freeway must be installed by means of tunneling, jacking, or boring and any
voids outside the encasement must be filled with lean concrete grout and the ends of encasements be
satisfactorily closed.
3. In cut section, encasement must extend continuously from ditch line to ditch tine and in fill section,
encasement must extend continuously five feet beyond toe to slopes.
4. Vents for encasement should be extended to the right of way line or as otherwise required by the Department.
5. All pipe encasements as to material and strength shall meet the standards and specifications of the
Department.
6. When trenching is carried down cut slopes, excavation must be backfilled to maximum density and the
disturbed portion of the slope be stabilized and sodded to the satisfaction of the Department's Engineer.
Plans
This Encroachment agreement must be accompanied, in the form of an attachment, by a plan showing the
following:
1. All roadways and ramps
2. Right of way and control of access lines
3. Drainage structures or bridges if affected by encroachment
4. Location of the proposed encroachment
5. Length, size and type of encroachment
G. Dimensions, showing the distance from the encroachment to roadways, shoulders, structures, etc.
7. Location by highway survey station number. If station number cannot be obtained, location should be shown
by distance from some identifiable point, such as a bridge, road intersection, etc. (To assist in preparation of
the encroachment plan, Department roadway plans may be seen at the various Highway Division Offices or at
the Raleigh Office.)
All encroachment agreements involving the crossing of the right of way, roadways and/or ramps of a freeway, must be
accompanied, in the form of an attachment, by a profile showing the following information:
The profile should extend from right of way line to right of way line and show all slopes (cut or fill), ditches,
shoulders, pavements, medians, etc.
A vertical dimension from bottom of road ditches and from surface of pavement to encroaching structures.
Length, size, and type of encasement where required.
Notation of portion to be installed by open -cut.
For underground encroachments involving encasements that must be vented, the location of vents must be
shown.
Method of installation must be shown in detail on either the plan or profile.
Any attachment to a bridge or other drainage structure must be approved by the Department's Bridge Design
Unit.
Where profile is required, it should be on same sheet with the plan.
SPECIAL PROVISIONS OR SPECIFICATIONS
Any special provisions or specifications as to the performance of the work or the method of construction that may be
required by the Department must be shown on a separate sheet attached to encroachment, provided that such
information cannot be shown on the plan and profile sheet.
Page 3 of 3

ROY COOPER
s:
y.a Governor
MICHAEL S. REGAN
Secretary
Energy, Mineral
and Land Resources S. DANIEL SMITH
ENVIRONMENTAL QUALITY
Interim Director
March 14, 2019
LETTER OF APPROVAL
Charlotte Water
Attention: Carl Wilson
5100 Brookshire Boulevard
Charlotte, NC 28216
RE: Project Name: Mallard Creek WRF Reuse Line Extension to UNCC
Acres Approved: 9.2
Project ID: MECKL-2019-053
County: Mecklenburg, City: Charlotte
Address: Tryon Street
River Basin: Yadkin
Stream Classification: Other
Submitted By: Charlotte Water
Date Received by LQS: February 20, 2019
Plan Type: New
Dear Mr. Wilson:
This office has reviewed the subject erosion and sedimentation control plan. We find the plan to
be acceptable and hereby issue this Letter of Approval. The enclosed Certificate of Approval
must be posted at the job site. This plan approval shall expire three (3) years following the date
of approval, if no land -disturbing activity has been undertaken, as is required by Title 15A
NCAC 4B .0129.
Please be aware that your project will be covered by the enclosed NPDES Construction
Stonnwater General Permit NCG010000. Please become familiar with all the requirements and
conditions of this permit in order to achieve compliance.
Title 15A NCAC 4B .0118(a) requires that a copy of the approved erosion control plan be onfile
at the job site. Also, this letter gives the notice required by G.S. 113A-61.1(a) of our right of
periodic inspection to insure compliance with the approved plan.
State of North Carolina I Environmental Quality I Energy, Mineral and Land Resources
Mooresville Regional Office 1 610 Fast Center Ave Ste 301 I Mooresville, NC 29115
704 663 1699 T

Letter of Approval
Charlotte Water
March 14, 2019
Page 2 of 2
North Carolina's Sedimentation Pollution Control Act is performance -oriented, requiring
protection of existing natural resources and adjoining properties. If, following the
commencement of this project, the erosion and sedimentation control plan is inadequate to meet
the requirements of the Sedimentation Pollution Control Act of 1973 (North Carolina General
Statute 113A-51 through 66), this office may require revisions to the plan and implementation of
the revisions to insure compliance with the Act.
Acceptance and approval of this plan is conditioned upon your compliance with Federal and
State water quality laws, regulations, and rules. In addition, local city or county ordinances or
rules may also apply to this land -disturbing activity. This approval does not supersede any other
permit or approval.
Please note that this approval is based in part on the accuracy of the information provided in the
Financial Responsibility Form, which you provided. You are requested to file an amended form
if there is any change in the information included on the form. In addition, it would be helpful if
you notify this office of the proposed starting date for this project. Please notify us if you plan to
have a preconstruction conference.
Your cooperation is appreciated.
Sincerely,
James Moore
Assistant Regional Engineer
Land Quality Section
Enclosures: Certificate of Approval
NPDES Permit
em: [e-mail]
cc: Inspection Department

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Scientific Name
Common Name
Federal Status
Habitat Present or
Likely to Occur
Onsite?
Myotis septentrionalis
Northern long-eared bat
Threatened
Yes
Lasmigona decorata
Carolina heelsplitter
Endangered
No
Rhus michauxii
Michaux's sumac
Endangered
No
Helianthusschweinitzii
Schweinitz'ssunflower
Endangered
No
Echinacea laevigata
Smooth coneflower
Endangered
No

IPaC: Explore Location Page 1 of 11
IPaC Information for Planning and Consultation U.S. Fish& Wildlife Service
IPaC resource list
This report is an automatically generated list of species and other resources such as critical habitat
(collectively referred to as trustresources) under the U.S. Fish and Wildlife Service's (USFWS)
jurisdiction that are known or expected to be on or near the project area referenced below. The list
may also include trust resources that occur outside of the project area, but that could potentially be
directly or indirectly affected by activities in the project area. However, determining the likelihood and
extent of effects a project may have on trust resources typically requires gathering additional site -
specific (e.g., vegetation/species surveys) and project -specific (e.g., magnitude and timing of proposed
activities) information.
Below is a summary of the project information you provided and contact information for the USFWS
office(s) with jurisdiction in the defined project area. Please read the introduction to each section that
follows (Endangered Species, Migratory Birds, USFWS Facilities, and NWI Wetlands) for additional
information applicable to the trust resources addressed in that section.
Location
Mecklenburg County, North Carolina
Local office
Asheville Ecological Services Field Office
[phone]
JJ3 [phone]
160 ZiIIicoa Street
Asheville, NC 28801-1082
http://www.fws.gov/nc-es/es/countyfr.html
https:Hecos.fws.gov/ipac/location/VD2C33KLZRENBPNAV7GSY2NG24/resources 5/9/2019

lPaC: Explore Location Page 2 of 11
Endangered species
This resource list is for informational purposes only and does not constitute an analysis of project
level impacts.
The primary information used to generate this list is the known or expected range of each species.
Additional areas of influence (AOI) for species are also considered. An AOI includes areas outside of the
species range if the species could be indirectly affected by activities in that area (e.g., placing a dam
upstream of a fish population, even if that fish does not occur at the dam site, may indirectly impact
the species by reducing or eliminating water flow downstream). Because species can move, and site
conditions can change, the species on this list are not guaranteed to be found on or near the project
area. To fully determine any potential effects to species, additional site -specific and project -specific
information is often required.
Section 7 of the Endangered Species Act requires Federal agencies to "request of the Secretary
information whether any species which is listed or proposed to be listed may be present in the area of
such proposed action" for any project that is conducted, permitted, funded, or licensed by any Federal
agency. A letter from the local office and a species list which fulfills this requirement can only be
obtained by requesting an official species list from either the Regulatory Review section in IPaC (see
directions below) or from the local field office directly.
For project evaluations that require USFWS concurrence/review, please return to the IPaC website and
request an official species list by doing the following: NW1. Draw the project location and click CONTINUE
2. Click DEFINE PROJECT. VNW
3. Log in (if directed to do so).
4. Provide a name and description for your project.
5. Click REQUEST SPECIES LIST.
Listed species
and their critical habitats are managed by the Ecological Services Program of the U.S. Fish and Wildlife
Service (USFWS) and the fisheries division of the National Oceanic and Atmospheric Administration
(NOAA Fisheries?).
Species and critical habitats under the sole responsibility of NOAA Fisheries are not shown on this list.
Please contact NOAA Fisheries for species under their jurisdiction.
1. Species listed under the Endangered Species Act are threatened or endangered; IPaC also shows
species that are candidates, or proposed, for listing. See the listing status page for more
information.
2. NOAA Fisheries, also known as the National Marine Fisheries Service (NMFS), is an office of the
National Oceanic and Atmospheric Administration within the Department of Commerce.
The following species are potentially affected by activities in this location:
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Mammals
NAME
Northern Long-eared Bat Myotis septentrionalis
No critical habitat has been designated for this species.
https://ecos.fws.gov/ecp/species/9045
Clams
NAME
Carolina Heelsplitter Lasmigona decorata
There is final critical habitat for this species. Your location is outside the
critical habitat.
https://ecos.fws.gov/ecp/species/3534
Flowering Plants
NAME
Michaux's Sumac Rhus michauxii
No critical habitat has been designated for this species.
https://ecos.fws.gov/ecp/species/5217 10��
Schweinitz's Sunflower Helianthus schweinitzii
No critical habitat has been designated for this species.
https://ecos.fws.gov/ecp/species/3849
Smooth Coneflower Echinacea laevigata
No critical habitat has been designated for this species.
https://ecos.fws.gov/ecp/species/3473
*t n
Critical habitats
STATUS
Threatened
STATUS
Endangered
STATUSt
Endangered
Endangered
Endangered
Potential effects to critical habitat(s) in this location must be analyzed along with the endangered
species themselves.
THERE ARE NO CRITICAL HABITATS AT TH IS LOCATION.
Migratory birds
Certain birds are protected under the Migratory Bird Treaty Act
1. and the Bald and Golden Eagle Protection Act?.
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Any person or organization who plans or conducts activities that may result in impacts to migratory
birds, eagles, and their habitats should follow appropriate regulations and consider implementing
appropriate conservation measures, as described below.
1. The Migratory Birds Treaty Act of 1918.
2. The Bald and Golden Eagle Protection Act of 1940.
Additional information can be found using the following links:
• Birds of Conservation Concern http://www.fws.gov/birds/management/managed-species/
birds-of-conservation-concern.php
• Measures for avoiding and minimizing impacts to birds
http://www.fws.gov/birds/management/project-assessment-tools-and-guidance/
conservation-measures.php
• Nationwide conservation measures for birds
X
J
The birds listed below are birds of particular concern either because they occur on the USFWS Birds of
Conservation Concern (BCC) list or warrant special attention in your project location. To learn more
about the levels of concern for birds on your list and how this list is generated, see the FAQ below. This
is not a list of every bird you may find in this location, nor a guarantee that every bird on this list will be
found in your project area. To see exact locations of where birders and the general public have sighted
birds in and around your project area, visit the E-bird data mapping tool (Tip: enter your location,
desired date range and a species on your list). For projects that occur off the Atlantic Coast, additional
maps and models detailing the relative occurrence and abundance of bird species on your list are
available. Links to additional information about Atlantic Coast birds, and other important information
about your migratory bird list, including how to properly interpret and use your migratory bird report,
can be found below. oor-"%, N '%W
For guidance on when to schedule activities or implement avoidance and minimization measures to
reduce impacts to migratory birds on your list, click on the PROBABILITY OF PRESENCE SUMMARY at
the top of your list to see when these birds are most likely to be present and breeding in your project
area.
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NAME
Bald Eagle Haliaeetus leucocephalus
This is not a Bird of Conservation Concern (BCC) in this area, but
warrants attention because of the Eagle Act or for potential
susceptibilities in offshore areas from certain types of development or
activities.
https://ecos.fws.gov/ecp/species/1626
Blue -winged Warbler Vermivora pinus %
This is a Bird of Conservation Concern (BCC) only in particular Bird
Conservation Re ions (BCRs) in the continental USA
BREEDING SEASON (IFA BREEDING
...............................................................................................
SEASON IS INDICATED FORA BIRD
.............................................................................................
ON YOUR LIST, THE BIRD MAY
.................................................................................
BREED IN YOUR PROJECT AREA
SOMETIME WITHIN THE
TIMEFRAME SPECIFIED, WHICH IS A
...............................................................................................
VERY LIBERAL ESTIMATE OF THE
DATES INSIDE WHICH THE BIRD
.....................................................................................
BREEDS ACROSS ITS ENTIRE
RANGE. "BREEDS ELSEWHERE"
...................................................................................
INDICATES THATTHE BIRD DOES
NOT LIKELY BREED IN YOUR
PROJECTAREA.)
..........................................
Breeds Sep 1 to Jul 31
xlull�\
K�k
Breeds May 1 to Jun 30
g
L4
Cerulean Warbler Dendroica cerulea r _U
Breeds Apr 28 to Jul 20
This is a Bird of Conservation Concern (BCC) throughout its range in the
continental USA and Alaska.
https://ecos.fws.gov/ecp/species/2974
Kentucky Warbler Oporornis formosus
Breeds Apr 20 to Aug 20
This is a Bird of Conservation Concern (BCC) throughout its range in the
continental USA and Alaska.
Prairie Warbler Dendroica discolor
Breeds May 1 to Jul 31
This is a Bird of Conservation Concern (BCC) throughout its range in the
continental USA and Alaska.
Prothonotary Warbler Protonotaria citrea Breeds Apr 1 to Jul 31
This is a Bird of Conservation Concern (BCC) throughout its range in the
continental USA and Alaska.
Red-headed Woodpecker Melanerpes erythrocephalus Breeds May 10 to Sep 10
This is a Bird of Conservation Concern (BCC) throughout its range in the
continental USA and Alaska.
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Rusty Blackbird Euphagus carolinus
This is a Bird of Conservation Concern (BCC) throughout its range in the
continental USA and Alaska.
Wood Thrush Hylocichla mustelina
This is a Bird of Conservation Concern (BCC) throughout its range in the
continental USA and Alaska.
Probability of Presence Summary
Breeds elsewhere
Breeds May 10 to Aug 31
The graphs below provide our best understanding of when birds of concern are most likely to be
present in your project area. This information can be used to tailor and schedule your project activities
to avoid or minimize impacts to birds. Please make sure you read and understand the FAQ "Proper
Interpretation and Use of Your Migratory Bird Report" before using or attempting to interpret this
report.
Probability of Presencevh�, � \
()
Each green bar represents the bird's relative probability of presence in the 10km grid cell(s) your
project overlaps during a particular week of the year. (A year is represented as 12 4-week months.) A
taller bar indicates a higher probability of species presence. The survey effort (see below) can be used
to establish a level of confidence in the presence score. One can have higher confidence in the
presence score if the corresponding survey effort is also high.
How is the probability of presence score calculated? The calculation is done in three steps:
1. The probability of presence for each week is calculated as the number of survey events in the week
where the species was detected divided by the total number of survey events for that week. For
example, if in week 12 there were 20 survey events and the Spotted Towhee was found in 5 of
them, the probability of presence of the Spotted Towhee in week 12 is 0.25.
2. To properly present the pattern of presence across the year, the relative probability of presence is
calculated. This is the probability of presence divided by the maximum probability of presence
across all weeks. For example, imagine the probability of presence in week 20 for the Spotted
Towhee is 0.05, and that the probability of presence at week 12 (0.25) is the maximum of any week
of the year. The relative probability of presence on week 12 is 0.25/0.25 = 1; at week 20 it is
0.05/0.25 = 0.2.
3. The relative probability of presence calculated in the previous step undergoes a statistical
conversion so that all possible values fall between 0 and 10, inclusive. This is the probability of
presence score.
To see a bar's probability of presence score, simply hover your mouse cursor over the bar.
Breeding Season( )
Yellow bars denote a very liberal estimate of the time -frame inside which the bird breeds across its
entire range. If there are no yellow bars shown for a bird, it does not breed in your project area.
Survey Effort ( )
Vertical black lines superimposed on probability of presence bars indicate the number of surveys
performed for that species in the 10km grid cell(s) your project area overlaps. The number of surveys is
expressed as a range, for example, 33 to 64 surveys.
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To see a bar's survey effort range, simply hover your mouse cursor over the bar.
No Data( )
A week is marked as having no data if there were no survey events for that week.
Survey Timeframe
Surveys from only the last 10 years are used in order to ensure delivery of currently relevant
information. The exception to this is areas off the Atlantic coast, where bird returns are based on all
years of available data, since data in these areas is currently much more sparse.
probability of presence breeding season survey effort — no data
SPECIES JAN FEB MAR APR MAY JUN JUL AUG SEP OCT NOV DEC
Bald Eagle
Non -BCC Vulnerable
.........................................
(This is not a Bird of
.........................................
Conservation Concern
..............................................
(BCC) in this area, but
............................................
warrants attention
because of the Eagle
Act or for potential
susceptibilities in
...................................
offshore areas from
.........................................
certain types of
development or
activities.).
Blue -winged
Warbler
BCC - BCR (This is a
.......................................
Bird of Conservation
.........................................
Concern (BCC) only in
............................................
particular Bird
Conservation Regions
.............................................
(BCRs) in the
..........................
continental USA)
..................................
Cerulean Warbler
BCC Ranewide (CON)
(This is a Bird of
................................
Conservation Concern
.............................................
(BCC) throughout its
..........................................
range in the
.........................
continental USA and
..........................................
Alaska.)
................
Kentucky Warbler
BCC Rangewide (CON)
(This is a Bird of
Conservation Concern
..............................................
(BCC) throughout its
..........................................
range in the
.........................
continental USA and
......................................
Alaskaa .)
................
IIII IIII- +0++ ++++ ++++ ++++ ++++ ++++ ++++ ++++ +++0 $III
--- ---� .... .... ME .. .... V.I. ■■■ ■■V- ---- ■■r ----
++++ ++++ ++++ ++�1 ++++ + N ++++ +1e+ ++++
IIII ��II-+ + ++*� ++++ ++-- ---+ ++++ ++++ ++++ ++—+ +++—
++++ ++++ ++++ +d 01 1111 1111 Iff ++++ ++++ ++++ ++—+ +++—
Prairie Warbler BCC Rangewide (CON) ++++ ++++ ++++ ++1+ W1 pill IIIT ++++ ++++ ++++ ++++ ++++
(This is a Bird of
Conservation Concern
..............................................
(BCC) throughout its
..........................................
range in the
.........................
continental .USA and
.........................................
Alaska.)
................
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Prothonotary
Warbler
BCC Rangewide (CON)
..............................................
is is a Bird of
Conservation Concern
..............................................
(BCC) throughout its
..........................................
range in the
.........................
continental USA and
..........................................
Alaska.)
................
Red-headed
Woodpecker
BCC Rangewide (CON)
..............................................
(This is a Bird of
Conservation Concern
-
------------------------------------
(BCC)throughoutits
..........................................
range in the
.........................
continental USA and
..........................................
Alaska.)
................
++++ ++++ ++++ +++0 +++1 ++++ ++11 ++++ ++++ ++++ ++++ ++++
C Id I I I I I I I I I I All 1+11 HIM 1III moll 1+++ UP INA
Rusty Blackbird +00+ 0+++
BCC Rangewide (CON)
..............................................
(This is a Bird of
Conservation Concern
(BCC) throughout its
.................... ...........
range in the
.......
continental USA and
..........................................
Alaska.) 410(
............
Wood Thrush ++++ ++++ ++++ Ak AA +++1
BCC Rangewide (CON)
(This is a Bird of
Conservation Concern
.(BCC) throughout lts
e in th
........rang..........e.......
continental USA and
Alaska.)r IF
. -0
Tell me more about conservation measures I can implement to avoid or minimize impacts to migratory birds.
Nationwide Conservation Measures describes measures that can help avoid and minimize impacts to all birds at any
location year round. Implementation of these measures is particularly important when birds are most likely to occur in
the project area. When birds may be breeding in the area, identifying the locations of any active nests and avoiding
their destruction is a very helpful impact minimization measure. To see when birds are most likely to occur and be
breeding in your project area, view the Probability of Presence Summary. Additional measures and/or permits may be
advisable depending on the type of activity you are conducting and the type of infrastructure or bird species present
on your project site.
What does IPaC use to generate the migratory birds potentially occurring in my specified location?
The Migratory Bird Resource List is comprised of USFWS Birds of Conservation Concern (BCC) and other species that
may warrant special attention in your project location.
The migratory bird list generated for your project is derived from data provided by the Avian Knowledge Network
(AKN). The AKIN data is based on a growing collection of survey, banding, and citizen science datasets and is queried
and filtered to return a list of those birds reported as occurring in the 10km grid cell(s) which your project intersects,
and that have been identified as warranting special attention because they are a BCC species in that area, an eagle
(Eagle Act requirements may apply), or a species that has a particular vulnerability to offshore activities or
development.
Again, the Migratory Bird Resource list includes only a subset of birds that may occur in your project area. It is not
representative of all birds that may occur in your project area. To get a list of all birds potentially present in your
project area, please visit the AKIN Phenology Tool.
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What does IPaC use to generate the probability of presence graphs for the migratory birds potentially occurring in
my specified location?
The probability of presence graphs associated with your migratory bird list are based on data provided by the Avian
Knowledge Network (AKN). This data is derived from a growing collection of survey, banding, and citizen science
datasets .
Probability of presence data is continuously being updated as new and better information becomes available. To learn
more about how the probability of presence graphs are produced and how to interpret them, go the Probability of
Presence Summary and then click on the "Tell me about these graphs" link.
How do I know if a bird is breeding, wintering, migrating or present year-round in my project area?
To see what part of a particular bird's range your project area falls within (i.e. breeding, wintering, migrating or year-
round), you may refer to the following resources: The Cornell Lab of Ornithology All About Birds Bird Guide, or (if you
are unsuccessful in locating the bird of interest there), the Cornell Lab of Ornithology Neotropical Birds guide. If a bird
on your migratory bird species list has a breeding season associated with it, if that bird does occur in your project area,
there may be nests present at some point within the timeframe specified. If "Breeds elsewhere" is indicated, then the
bird likely does not breed in your project area.
What are the levels of concern for migratory birds?
Migratory birds delivered through IPaC fall into the following distinct categories of concern:
1. "BCC Rangewide" birds are Birds of Conservation Concern (BCC) that are of concern throughout their range
anywhere within the USA (including Hawaii, the Pacific Islands, Puerto Rico, and the Virgin Islands);
2. "BCC - BCR" birds are BCCs that are of concern only in particular Bird Conservation Regions (BCRs) in the
continental USA; and
3. "Non -BCC - Vulnerable" birds are not BCC species in your project area, but appear on your list either because of
the Eagle Act requirements (for eagles) or (for non -eagles) potential susceptibilities in offshore areas from certain
types of development or activities (e.g. offshore energy development or longline fishing).
Although it is important to try to avoid and minimize impacts to all birds, efforts should be made, in particular, to avoid
and minimize impacts to the birds on this list, especially eagles and BCC species of rangewide concern. For more
information on conservation measures you can implement to help avoid and minimize migratory bird impacts and
requirements for eagles, please see the FAQs for these topics.
Details about birds that are potentially affected by offshore projects
For additional details about the relative occurrence and abundance of both individual bird species and groups of bird
species within your project area off the Atlantic Coast, please visit the Northeast Ocean Data Portal. The Portal also
offers data and information about other taxa besides birds that may be helpful to you in your project review.
Alternately, you may download the bird model results files underlying the portal maps through the NOAA NCCOS
Integrative Statistical Modeling and Predictive Mapping of Marine Bird Distributions and Abundance on the Atlantic
Outer Continental Shelf project webpage.
Bird tracking data can also provide additional details about occurrence and habitat use throughout the year, including
migration. Models relying on survey data may not include this information. For additional information on marine bird
tracking data, see the Diving Bird Study and the nanotag studies or contact Caleb Spiegel or Pam Loring.
What if I have eagles on my list?
If your project has the potential to disturb or kill eagles, you may need to obtain a permit to avoid violating the Eagle
Act should such impacts occur.
Proper Interpretation and Use of Your Migratory Bird Report
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The migratory bird list generated is not a list of all birds in your project area, only a subset of birds of priority concern.
To learn more about how your list is generated, and see options for identifying what other birds may be in your project
area, please see the FAQ "What does IPaC use to generate the migratory birds potentially occurring in my specified
location". Please be aware this report provides the "probability of presence" of birds within the 10 km grid cell(s) that
overlap your project; not your exact project footprint. On the graphs provided, please also look carefully at the survey
effort (indicated by the black vertical bar) and for the existence of the "no data" indicator (a red horizontal bar). A high
survey effort is the key component. If the survey effort is high, then the probability of presence score can be viewed as
more dependable. In contrast, a low survey effort bar or no data bar means a lack of data and, therefore, a lack of
certainty about presence of the species. This list is not perfect; it is simply a starting point for identifying what birds of
concern have the potential to be in your project area, when they might be there, and if they might be breeding (which
means nests might be present). The list helps you know what to look for to confirm presence, and helps guide you in
knowing when to implement conservation measures to avoid or minimize potential impacts from your project
activities, should presence be confirmed. To learn more about conservation measures, visit the FAQ "Tell me about
conservation measures I can implement to avoid or minimize impacts to migratory birds" at the bottom of your
migratory bird trust resources page.
Facilities
04
National Wildlife Refuge lands Aoo
Any activity proposed on lands managed by the National Wildlife Refuge system must undergo a
'Compatibility Determination' conducted by the Refuge. Please contact the individual Refuges to
discuss any questions or concerns.
THERE ARE NO REFUGE LANDS AT THIS LOCATION.
.0-e ON -%-
Fish hatcheries
THERE ARE NO FISH HATCHERIES AT THIS LOCATION.
Wetlands in the National Wetlands Inventory
Impacts to NWI wetlands and other aquatic habitats may be subject to regulation under Section 404 of
the Clean Water Act, or other State/Federal statutes.
For more information please contact the Regulatory Program of the local U.S. Army Corps of Engineers
District.
Please note that the NWI data being shown may be out of date. We are currently working to update our
NWI data set. We recommend you verify these results with a site visit to determine the actual extent of
wetlands on site.
This location overlaps the following wetlands:
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FRESHWATER FORESTED/SHRUB WETLAND
PF01A
PSS1 C
PF01C
RIVERIN E
R2UBHx
R2UBH
R4SBC
A full description for each wetland code can be found at the National Wetlands Inventory website
Data limitations
The Service's objective of mapping wetlands and deepwater habitats is to produce reconnaissance level information
on the location, type and size of these resources. The maps are prepared from the analysis of high altitude imagery.
Wetlands are identified based on vegetation, visible hydrology and geography. A margin of error is inherent in the use
of imagery; thus, detailed on -the -ground inspection of any particular site may result in revision of the wetland
boundaries or classification established through image analysis.
The accuracy of image interpretation depends on the quality of the imagery, the experience of the image analysts, the
amount and quality of the collateral data and the amount of ground truth verification work conducted. Metadata
should be consulted to determine the date of the source imagery used and any mapping problems.
Wetlands or other mapped features may have changed since the date of the imagery or field work. There may be
occasional differences in polygon boundaries or classifications between the information depicted on the map and the
actual conditions on site.
Data exclusions 40', G
Certain wetland habitats are excluded from the National mapping program because of the limitations of aerial imagery
as the primary data source used to detect wetlands. These habitats include seagrasses or submerged aquatic
vegetation that are found in the intertidal and subtidal zones of estuaries and nearshore coastal waters. Some
deepwater reef communities (coral or tuberficid worm reefs) have also been excluded from the inventory. These
habitats, because of their depth, go undetected by aerial imagery.
Data precautions
Federal, state, and local regulatory agencies with jurisdiction over wetlands may define and describe wetlands in a
different manner than that used in this inventory. There is no attempt, in either the design or products of this
inventory, to define the limits of proprietary jurisdiction of any Federal, state, or local government or to establish the
geographical scope of the regulatory programs of government agencies. Persons intending to engage in activities
involving modifications within or adjacent to wetland areas should seek the advice of appropriate federal, state, or
local agencies concerning specified agency regulatory programs and proprietary jurisdictions that may affect such
activities.
https:Hecos.fws.gov/ipac/location/VD2C33KLZRENBPNAV7GSY2NG24/resources 5/9/2019

CHARLOTTE WATER
CITY OF CHARLOTTE, NORTH CAROLINA
PROJECT MANUAL
Mallard Creek WRF Reuse Line Extension to UNCC
Charlotte Water Project No: 833-15-513
May 2019
CRRp�i
"kA
18179
N.
Prepared By:
Hazen and Sawyer
9101 Southern Pine Boulevard, Suite 250
Charlotte, NC 28273

SECTION 02200
EARTHWORK
PART 1 -- GENERAL
1.01 THE REQUIREMENT
A. Furnish all labor, equipment and materials required to complete all work associated with
excavation, including off -site borrow excavation, dewatering, backfill, drainage layers
beneath and around structures, foundation and backfill stone, filter fabric,
embankments, stockpiling topsoil and any excess suitable material in designated areas,
in place compaction of embankments, backfill and subgrades beneath foundations and
roadways, excavation support, disposing from the site all unsuitable materials, providing
erosion and sedimentation control grading, site grading and preparation of pavement
and structure subgrade, and other related and incidental work as required to complete
the work shown on the Drawings and specified herein.
B. All excavations shall be in conformity with the lines, grades, and cross sections shown
on the Drawings or established by the Engineer.
C. It is the intent of this Specification that the Contractor conduct the construction activities
in such a manner that erosion of disturbed areas and off -site sedimentation be
absolutely minimized.
D. All work under this Contract shall be done in conformance with and subject to the
limitations of the latest editions of the North Carolina Department of Transportation
Standard Specifications for Roads and Structures and the North Carolina Erosion and
Sediment Control Planning and Design Manual
1.02 RELATED WORK SPECIFIED ELSEWHERE
A. Requirements of related work are included in Division 1 and Division 2 of these
Specifications.
1.03 REFERENCE SPECIFICATIONS, CODES, AND STANDARDS
A. Without limiting the generality of the other requirements of the Specifications, all work
herein shall conform to the applicable requirements of the following documents. All
referenced Specifications, codes, and standards refer to the most current issue
available at the time of Bid.
1. North Carolina Department of Transportation Standard Specifications for Roads
and Structures, latest edition.
2. American Society for Testing and Materials (ASTM):
ASTM C 127 Test for Specific Gravity and Absorption of Coarse Aggregate.
32270-016102200: 1-29-2019 02200-1 MALLARD CREEK REUSE

ASTM C 136 Test for Sieve Analysis of Fine and Coarse Aggregates.
ASTM D 422 Particle Size Analysis of Soils.
ASTM D 423 Test for Liquid Limit of Soils.
ASTM D 424 Test for Plastic Limit and Plasticity Index of Soils.
ASTM C 535 Test for Resistance to Degradation of Large Size Coarse
Aggregate by Abrasion and Impact in the Los Angeles
Machine.
ASTM D 698 Standard Method of Test for the Moisture - Density Relations
of Soils Using a 5.5 lb. (2.5 kg) Rammer and a 12-inch (305
mm) Drop.
ASTM D1556 Test for Density of Soil in Place by the Sand -Cone Method.
ASTM D1557 Test for Moisture -Density Relations of Soils and Soil
Aggregate Mixtures Using 10-lbs. (4.5 kg) Rammer and
18-inch (457 mm) Drop.
ASTM D2049 Test Method for Relative Density of Cohesionless Soils.
ASTM D2167 Test for Density of Soil in Place by the Rubber -Balloon
Method.
ASTM D2216 Test for Laboratory Determination of Water (Moisture) Content
of Soil, Rock, and Soil Aggregate Mixtures.
ASTM D2487 Test for Classification of Soils for Engineering Purposes.
ASTM D2922 Test for Density of Soil and Soil -Aggregate in Place by
Nuclear Methods (Shallow Depth).
1.04 SUBSURFACE CONDITIONS
A. Information on subsurface conditions is referenced under Division 1, General
Requirements.
B. Attention is directed to the fact that there may be water pipes, storm drains and other
utilities located in the area of proposed excavation. Perform all repairs to same in the
event that excavation activities disrupt service.
1.05 SUBMITTALS
A. In accordance with the procedures and requirements set forth in Section 01300 -
Submittals, the Contractor shall submit the following:
1. Name and location of all material suppliers.
32270-016102200: 1-29-2019 02200-2 MALLARD CREEK REUSE

2. Certificate of compliance with the standards specified above for each source of
each material.
3. List of disposal sites for waste and unsuitable materials and all required permits
for use of those sites.
4. Plans and cross sections of open cut excavations showing side slopes and limits
of the excavation at grade.
5. Samples of synthetic filter fabric and reinforced plastic membrane with
manufacturer's certificates or catalog cuts stating the mechanical and physical
properties. Samples shall be at least one (1) foot wide and four (4) feet long
taken across the roll with the warp direction appropriately marked.
6. Construction drawings and structural calculations for any types of excavation
support required. Drawings and calculations shall be sealed by a currently
registered Professional Engineer in the State of North Carolina.
7. Monitoring plan and pre -construction condition inspection and documentation of
all adjacent structures, utilities, and roadways near proposed installation of
excavation support systems.
8. Dewatering procedures.
1.06 PRODUCT HANDLING
A. Soil and rock material shall be excavated, transported, placed, and stored in a manner
so as to prevent contamination, segregation and excessive wetting. Materials which
have become contaminated or segregated will not be permitted in the performance of
the work and shall be removed from the site.
1.07 USE OF EXPLOSIVES
A. Use of explosives is permitted except within the Norfolk -Southern Railroad ROW. Refer
to Section) 02202 (Excavation by Blasting) for details.
PART 2 -- PRODUCTS
2.01 SELECT FILL
A. Soils from the excavations meeting requirements stipulated herein with the exceptions
of topsoil and organic material may be used as select fill for backfilling, constructing
embankments, reconstructing existing embankments, and as structural subgrade
support.
B. Select fill used for embankment construction shall be a silty or clayey soil material with a
Maximum Liquid Limit (LL) of 50 and a Plasticity Index (PI) between 7 and 20.
C. Select fill used for backfilling shall either be material as described in Paragraph B above
or a granular soil material with a Maximum Plasticity Index (PI) of 6.
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D. Regardless of material used as select fill, materials shall be compacted at a moisture
content satisfactory to the Engineer, which shall be approximately that required to
produce the maximum density except that the moisture content shall not be more than
1 % below nor more than 4% above the optimum moisture content for the particular
material tested in accordance with the ASTM D698.
E. Select fill used as subgrade support shall be a coarse aggregate material meeting the
gradation requirements of #57 or #78 aggregates in accordance with ASTM C-33, or
Aggregate Base Course (ABC) as defined in Section 02207 —Aggregate Materials.
F. Where excavated material does not meet requirements for select fill, Contractor shall
furnish off -site borrow material meeting the specified requirements herein.
Determination of whether the borrow material will be paid for as an extra cost will be
made based on Article 4 of the General Conditions, as amended by the Supplementary
Conditions. When the excavated material from required excavations is suitable for use
as backfill, bedding, or embankments, but is replaced with off -site borrow material for
the Contractor's convenience, the costs associated with such work and material shall be
borne by the Contractor.
2.02 TOPSOIL
A. Topsoil shall be fertile, natural soil, free from large stones, roots, sticks and weeds with
a neutral pH. It shall contain no mixture of refuse or any material toxic to plant growth.
Topsoil from off -site sources shall also have a minimum of 80% passing No. 4 sieve, a
maximum of 80% passing a No. 200 sieve, minimum of 5% organic content and a pH
between 6 and 7.
2.03 GEOTEXTILES
A. The Contractor shall provide geotextiles as indicated on the Drawings and directed by
the ENGINEER.
PART 3 -- EXECUTION
3.01 STRIPPING OF TOPSOIL
A. In all areas to be excavated, filled, paved, or graveled the topsoil shall be stripped to its
full depth and shall be deposited in storage piles on the site, at locations designated by
the Engineer, for subsequent reuse. Topsoil shall be kept separated from other
excavated materials and shall be piled free of roots and other undesirable materials.
3.02 EXCAVATION
A. All material excavated, except for rock, shall be classified as UNCLASSIFIED
EXCAVATION. Excavation shall include the removal of all soil, conduits, pipe, and all
other obstacles encountered and shown to be removed within the limits of excavation
shown on the Drawings or specified herein. The cost of excavation shall be included in
the unit price pay item for the new 36-inch force main. Solid rock excavation shall be
paid as a unit price under its own pay item description.
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B. All suitable material removed in the excavation shall be used as far as practicable in the
formation of embankments, subgrades, and shoulders, and at such other places as may
be indicated on the Drawings or indicated by the Engineer. No excavation shall be
wasted except as may be permitted by the Engineer. Refer to the drawings for specific
location and placement of suitable excavated materials in the formation of
embankments, backfill, and structural and roadway foundations. THE ENGINEER WILL
DESIGNATE MATERIALS THAT ARE UNSUITABLE. The Contractor shall furnish off
site disposal areas for the unsuitable material. Where suitable materials containing
excessive moisture are encountered above grade in cuts, the Contractor shall construct
above grade ditch drains prior to the excavation of the cut material when in the opinion
of the Engineer such measures are necessary to provide proper construction.
C. All excavations shall be made in the dry and in such a manner and to such widths as will
give ample room for properly constructing and inspecting the structures and/or piping
they are to contain and for such excavation support, pumping and drainage as may be
required. Excavation shall be made in accordance with the grades and details shown on
the Drawings and as specified herein.
D. Excavation slopes shall be flat enough to avoid slides that will cause disturbance of the
subgrade or damage of adjacent areas. Excavation requirements and slopes shall be
as indicated in the Drawings. The Contractor shall intercept and collect surface runoff
both at the top and bottom of cut slopes. The intersection of slopes with natural ground
surfaces, including the beginning and ending of cut slopes, shall be uniformly rounded
as shown on the Drawings or as may be indicated by the Engineer. Concurrent with the
excavation of cuts the Contractor shall construct intercepting berm ditches or earth
berms along and on top of the cut slopes at locations shown on the Drawings or
designated by the Engineer. All slopes shall be finished to reasonably uniform surfaces
acceptable for seeding and mulching operations. No rock or boulders shall be left in
place which protrude more than 1 foot within the typical section cut slope lines, and all
rock cuts shall be cleaned of loose and overhanging material. All protruding roots and
other objectionable vegetation shall be removed from slopes. The Contractor shall be
required to submit plans of open -cut excavation for review by the Engineer before
approval is given to proceed.
E. It is the intent of these Specifications that all structures shall bear on an aggregate base,
crushed stone or screened gravel bedding placed to the thickness shown on the
Drawings, specified in these Specifications, or not less than 6-inches. Bedding for reuse
line piping shall be as shown on the Drawings.
F. The bottom of all excavations for structures and pipes shall be examined by the
Engineer for bearing value and the presence of unsuitable material. If, in the opinion of
the Engineer, additional excavation is required due to the low bearing value of the
subgrade material, or if the in -place soils are soft, yielding, pumping and wet, the
Contractor shall remove such material to the required width and depth and replace it
with thoroughly compacted select fill, and/or crushed stone or screened gravel as
indicated by the Engineer. Payment for such additional work ordered by the Engineer
shall be made under a separate unit price pay item. No payment will be made for
subgrade disturbance caused by inadequate dewatering or improper construction
methods.
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G. All cuts shall be brought to the grade and cross section shown on the Drawings, or
established by the Engineer, prior to final inspection and acceptance by the Engineer.
H. Slides and overbreaks which occur due to negligence, carelessness or improper
construction techniques on the part of the Contractor shall be removed and disposed of
by the Contractor as indicated by the Engineer at no additional cost to the Owner. If
grading operations are suspended for any reason whatsoever, partially completed cut
and fill slopes shall be brought to the required slope and the work of seeding and
mulching or other required erosion and sedimentation control operations shall be
performed.
Where the excavation exposes sludge, sludge contaminated soil or other odorous
materials, the Contractor shall cover such material at the end of each workday with a
minimum of 6-inches and a maximum of 24-inches of clean fill. The work shall be an
odor abatement measure and the material shall be placed to the depth deemed
satisfactory by the Engineer for this purpose.
3.03 EXCAVATION SUPPORT
A. The Contractor shall furnish, place, and maintain such excavation support which may be
required to support sides of excavation or to protect pipes and structures from possible
damage and to provide safe working conditions. If the Engineer is of the opinion that at
any point sufficient or proper supports have not been provided, he may order additional
supports put in at the expense of the Contractor. The Contractor shall be responsible
for the adequacy of all supports used and for all damage resulting from failure of
support system or from placing, maintaining and removing it.
B. Selection of and design of any proposed excavation support systems is exclusively the
responsibility of the Contractor. Contractor shall submit drawings and calculations on
proposed systems sealed by a Professional Engineer currently registered in the State of
North Carolina.
C. The Contractor shall exercise caution in the installation and removal of supports to
insure that excessive or unusual loadings are not transmitted to any new or existing
structure. The Contractor shall promptly repair at his expense any and all damage that
can be reasonably attributed to installation or removal of excavation support system.
D. Contractor shall monitor movement in the excavation support systems as well as
movement at adjacent structures, utilities and roadways near excavation supports.
Contractor shall submit a monitoring plan developed by the excavation support design
engineer. All pre -construction condition assessment and documentation of adjacent
structures on -site and off -site shall be performed by the Contractor. If any sign of
distress such as cracking or movement occurs in any adjacent structure, utility or
roadway during installation of supports, subsequent excavation, service period of
supports, subsequent backfill and construction, or removal of supports, Engineer shall
be notified immediately. Contractor shall be exclusively responsible for any damage to
any roadway, structure, utility, pipes, etc. both on -site and off -site, as a result of his
operations.
E. All excavation supports shall be removed upon completion of the work except as
indicated herein. The Engineer may permit supports to be left in place at the request
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and expense of the Contractor. The Engineer may order certain supports left
permanently in place in addition to that required by the Contract. The cost of the
materials so ordered left in place, less a reasonable amount for the eliminated expense
of the removal work omitted, will be paid as a Change Order in accordance with the
General Conditions and Division 1. Any excavation supports left in place shall be cut off
at least two (2) feet below the finished ground surface or as directed by the Engineer.
3.04 PROTECTION OF SUBGRADE
A. To minimize the disturbance of bearing materials and provide a firm foundation, the
Contractor shall comply with the following requirements:
Use of heavy rubber -tired construction equipment shall not be permitted on the
final subgrade unless it can be demonstrated that drawdown of groundwater
throughout the entire area of the structure is at least 3 feet below the bottom of
the excavation (subgrade). Even then, the use of such equipment shall be
prohibited should subgrade disturbance result from concentrated wheel loads.
2. Subgrade soils disturbed through the operations of the Contractor shall be
excavated and replaced with compacted select fill or crushed stone at the
Contractor's expense as indicated by the Engineer.
3. The Contractor shall provide positive protection against penetration of frost into
materials below the bearing level during work in winter months. This protection
can consist of a temporary blanket of straw or salt hay covered with a plastic
membrane or other acceptable means.
3.05 PROOFROLLING
A. The subgrade of all structures and all areas that will support pavements or select fill
shall be proofrolled. After stripping of topsoil, excavation to subgrade and prior to
placement of fills, the exposed subgrade shall be carefully inspected by probing and
testing as needed. Any topsoil or other organic material still in place, frozen, wet, soft, or
loose soil, and other undesirable materials shall be removed. The exposed subgrade
shall be proofrolled with a heavily loaded tandem -wheeled dump truck to check for
pockets of soft material hidden beneath a thin crust of better soil. Any unsuitable
materials thus exposed shall be removed and replaced with an approved compacted
material.
B. The Contractor shall perform all dewatering as required for the completion of the work.
Procedures for dewatering proposed by the Contractor shall be submitted to the
Engineer for review prior to any earthwork operations. All water removed by dewatering
operations shall be disposed of in accordance with the North Carolina Sedimentation
Pollution Control Act.
C. The dewatering system shall be of sufficient size and capacity as required to control
groundwater or seepage to permit proper excavation operations, embankment
construction and reconstruction, subgrade preparation, and to allow concrete and piping
to be placed in a dry condition. The system shall include a sump system or other
equipment, appurtenances and other related earthwork necessary for the required
control of water. The Contractor shall drawdown groundwater to at least 3 feet below
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the bottom of excavations (subgrade) at all times in order to maintain a dry and
undisturbed condition.
D. The Contractor shall control, by acceptable means, all water regardless of source.
Water shall be controlled and its disposal provided for at each berm, structure, etc. The
entire periphery of the excavation areas shall be ditched and diked to prevent water
from entering the excavation. The Contractor shall be fully responsible for disposal of
the water and shall provide all necessary means at no additional expense to the Owner.
The Contractor shall be solely responsible for proper design, installation, proper
operation, maintenance, and any failure of any component of the system.
E. The Contractor shall be responsible for and shall repair without cost to the Owner, any
damage to work in place and the excavation, including damage to the bottom due to
heave and including removal of material and pumping out of the excavated area. The
Contractor shall be responsible for damages to any other area or structure caused by
his failure to maintain and operate the dewatering system proposed and installed by the
Contractor.
F. The Contractor shall take all the steps that he considers necessary to familiarize himself
with the surface and subsurface site conditions, and shall obtain the data that is required
to analyze the water and soil environment at the site and to assure that the materials
used for the dewatering systems will not erode, deteriorate, or clog to the extent that the
dewatering systems will not perform properly during the period of dewatering. Copies of
logs of borings and laboratory test results are available to the Contractor. This data is
furnished for information only, and it is expressly understood that the Owner and
Engineer will not be held responsible for any interpretations or conclusions drawn
therefrom by the Contractor.
G. Prior to the execution of the work, the Contractor, Owner and Engineer shall jointly
survey the condition of adjoining structures. Photographs and records shall be made of
any prior settlement or cracking of structures, pavements, and the like, that may
become the subject of possible damage claims.
3.06 DEWATERING
A. The Contractor shall perform all dewatering as required for the completion of the work.
All water removed by dewatering operations shall be disposed of in accordance with the
North Carolina Sedimentation Pollution Control Act.
B. Provide and maintain pumps, sumps, suction and discharge lines, and other dewatering
system components necessary to convey water away from excavations.
C. Prevent surface and subsurface water from flowing into excavations and from flooding
adjacent areas.
D. Refer to Section 02140, Dewatering, for additional details and requirements.
3.07 EMBANKMENTS
A. The Contractor shall perform the construction of embankments in such a manner that
cut and fill slopes will be completed to final slopes and grade in a continuous operation.
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The operation of removing excavation material from any cut and the placement of
embankment in any fill shall be a continuous operation to completion unless otherwise
permitted by the Engineer.
B. Surfaces upon which embankments are to be constructed shall be stripped of topsoil,
organic material, rubbish and other extraneous materials. After stripping and prior to
placing embankment material, the Contractor shall compact the top 12-inches of in
place soil as specified under Paragraph 3.09, COMPACTION.
C. Any soft or unsuitable materials revealed before or during the in place compaction shall
be removed as indicated by the Engineer and replaced with select fill.
D. Ground surfaces on which embankment is to be placed, shall be scarified or stepped in
a manner which will permit bonding of the embankment with the existing surface. The
embankment soils shall be as specified under Part 2 - Products, and shall be deposited
and spread in successive, uniform, approximately horizontal layers not exceeding
8-inches in compacted depth for the full width of the cross section, and shall be kept
approximately level by the use of effective spreading equipment. Hauling shall be
distributed over the full width of the embankment, and in no case will deep ruts be
allowed to form during the construction of the embankment. The embankment shall be
properly drained at all times. Each layer of the embankment shall be thoroughly
compacted to the density specified under Paragraph 3.09, COMPACTION.
E. The embankment or fill material in the layers shall be of the proper moisture content
before rolling to obtain the prescribed compaction. Wetting or drying of the material and
manipulation when necessary to secure a uniform moisture content throughout the layer
shall be required. Should the material be too wet to permit proper compaction or rolling,
all work on all portions of the embankment thus affected shall be delayed until the
material has dried to the required moisture content. Samples of all embankment
materials for testing, both before and after placement and compaction, will be taken at
frequent intervals. From these tests, corrections, adjustments, and modifications of
methods, materials, and moisture content will be made to construct the embankment.
F. Where embankments are to be placed and compacted on hillsides, or when new
embankment is to be compacted against embankments, or when embankment is built in
part widths, the slopes that are steeper than 4:1 shall be loosened or plowed to a
minimum depth of 6 inches or, if in the opinion of the Engineer, the nature of the ground
is such that greater precautions should be taken to bind the fill to the original ground
then benches shall be cut in the existing ground as indicated by Engineer.
G. When rock and other embankment material are excavated at approximately the same
time, the rock shall be incorporated into the outer portions of the embankments and the
other material which meets the requirements for select fill shall be incorporated into the
formation of the embankments. Stones or fragmentary rock larger than 4-inches in their
greatest dimension will not be allowed within the top 6-inches of the final grade. Stones,
fragmentary rock, or boulders larger than 12-inches in their greatest dimension will not
be allowed in any portions of embankments and shall be disposed of by the Contractor
as indicated by the Engineer. When rock fragments or stone are used in embankments,
the material shall be brought up in layers as specified or directed and every effort shall
be exerted to fill the voids with finer material to form a dense, compact mass which
meets the densities specified for embankment compaction.
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3.08 BACKFILLING
A. All structures and pipes shall be backfilled with the type of materials shown on the
Drawings and specified herein. Select fill shall be deposited in successive, uniform,
approximately horizontal layers not exceeding 8-inches in compacted depth for the full
width. Stones or fragmentary rock larger than 4-inches in their greatest dimension will
not be allowed within the top 6-inches of the ground nor within 6 inches of pipes. No
stone or fragmentary rock larger than 12-inches in their greatest dimension will be
allowed for any portion of backfill. Compaction shall be in accordance with the
requirements of Paragraph 3.09, COMPACTION.
B. Where excavation support is used, the Contractor shall take all reasonable measures to
prevent loss of support beneath and adjacent to pipes and existing structures when
supports are removed. If significant volumes of soil cannot be prevented from clinging
to the extracted supports, the voids shall be continuously backfilled as rapidly as
possible. The Contractor shall thereafter limit the depth below subgrade that supports
will be installed in similar soil conditions or employ other appropriate means to prevent
loss of support.
3.09 COMPACTION
A. The Contractor shall compact embankments, backfill, crushed stone, aggregate base,
and in place subgrade in accordance with the requirements of this Section. The
densities specified herein refer to percentages of maximum density as determined by
the noted test methods. Compaction of materials on the project shall be in accordance
with the following schedule:
Density % Density % Max. Lift Thickness
Std. Proctor Mod. Proctor as Compacted
(D698) (D1557) Inches
Embankments Beneath Structures* 98 95 8
Other Embankments
95
92
8
Backfill Around Structures
95
92
8
Backfill in Pipe Trenches
95
92
8
Crushed Stone Beneath Structures
**
**
12
Select Sand
--
98
8
Aggregate Base Course (ABC)
--
98
8
Beneath Pavements and Structures
Crushed Stone Backfill
**
**
12
Crushed Stone Pipe Bedding
**
**
12
In place Subgrade Beneath Structures
98
95
Top 12-inches
* Embankments beneath structures shall be considered to include a zone 10 feet out from
the foundation of the structure extending down to the natural ground on a 450 slope.
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** The aggregate shall be compacted to a degree acceptable to the Engineer by use of a
vibratory compactor and/or crawler tractor.
B. Field density tests will be made by the Owner and Engineer to determine if the specified
densities have been achieved, and these tests shall be the basis for accepting or
rejecting the compaction. In -place density tests will be performed in accordance with
ASTM D 1556, ASTM D 2167, or ASTM D 2922. The Owner and Engineer will
exclusively determine which test method will be the most appropriate. Failure to
achieve the specified densities shall require the Contractor to re -compact the material or
remove it as required. The Contractor shall, if necessary, increase his compactive effort
by increasing the number of passes, using heavier or more suitable compaction
equipment, or by reducing the thickness of the layers. The Contractor shall adjust the
moisture contents of the soils to bring them within the optimum range by drying them or
adding water as required.
C. Testing will be performed as frequently as deemed necessary by the Engineer. As a
minimum, one in -place density test shall be performed for each 1000 cubic yards of
embankment placed and 500 cubic yards of backfill placed or one test performed each
day for either.
3.10 REMOVAL OF UNSUITABLE MATERIALS
A. The Contractor shall remove and dispose of off -site all unsuitable materials. Within
thirty (30) consecutive days after Notice to Proceed, the Contractor shall submit to the
Engineer for review all required permits and a list of disposal sites for the unsuitable
materials. If the disposal site is located on private property, the submittal shall also
include written permission from the owner of record.
B. All unsuitable materials shall be disposed of in locations and under conditions that
comply with federal, state and local laws and regulations.
C. The Contractor shall obtain an off -site disposal area prior to beginning demolition or
excavation operations.
D. All unsuitable materials shall be hauled in trucks of sufficient capacity and tight
construction to prevent spillage. Trucks shall be covered to prevent the propagation of
dust.
E. When all unsuitable material is completely disposed, the Contractor shall leave the
disposal sites in a condition acceptable to the Owner and Owner(s) of the disposal
site(s).
3.11 BORROW EXCAVATION
A. Description
The work covered by this section consists of the excavation of approved material from
borrow sources and the hauling and utilization of such material as required on the
Drawings or directed by the Engineer. It shall also include the removing, stockpiling,
and replacement of topsoil on the borrow source; the satisfactory disposition of material
from the borrow source which is not suitable for use; and the satisfactory restoration of
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the borrow source and haul roads to an acceptable condition upon completion of the
work.
Borrow excavation shall not be used before all available suitable unclassified excavation
has been used for backfill and incorporated into the embankments.
B. Coordination with Seeding Operations
The Contractor shall coordinate the work covered by this section with the construction of
embankments so that the requirements of Section 02200 are met.
C. Materials
All material shall meet the requirements of Division 2 shown below:
Borrow Material.................................Section 02200, Subsection 2.01 - Select Fill
D. Construction Methods
1. General
The surface of the borrow area shall be thoroughly cleared and grubbed and
cleaned of all unsuitable material including all organics, topsoil, etc., before
beginning the excavation. Disposal of material resulting from clearing and
grubbing shall be in accordance with Section 02100.
Each borrow operation shall not be allowed to accumulate exposed, erodible
slope area in excess of 1 acre at any one given time without the Contractor's
beginning permanent seeding and mulching of the borrow source or other
erosion control measures as may be approved by the Engineer.
The topsoil shall be removed and stockpiled at locations that will not interfere
with the borrow operations and that meet the approval of the Engineer.
Temporary erosion control measures shall be installed as may be necessary to
prevent the erosion of the stockpile material. Once all borrow has been removed
from the source or portion thereof, the stockpiled topsoil shall be spread
uniformly over the source.
Where it is necessary to haul borrow material over existing roads, the Contractor
shall use all necessary precautions to prevent damage to the existing roads.
The Contractor shall also conduct his hauling operations in such a manner as to
not interfere with the normal flow of traffic and shall keep the traffic lanes free
from spillage at all times.
2. Owner Furnished Sources
Where borrow sources are furnished by the Owner the location of such sources
will be as designated on the Drawings or as directed by the Engineer.
The Owner will furnish the necessary haul road right-of-way at locations
designated by the Engineer. All haul roads required shall be built, maintained,
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and when directed by the Engineer, obliterated, at no cost to the Owner. Where
the haul road is to be reclaimed for cultivation the Contractor shall plow or scarify
the area to a minimum depth of 8 inches.
The borrow sources shall be left in a neat and presentable condition after use.
All slopes shall be smoothed, rounded, and constructed not steeper than 3:1.
Where the source is to be reclaimed for cultivation the source shall be plowed or
scarified to a minimum depth of 8 inches, disc harrowed, and terraces
constructed. The source shall be graded to drain such that no water will collect
or stand and a functioning drainage system shall be provided.
All sources shall be seeded and mulched in accordance with Section 02910.
3. Contractor Furnished Sources
Prior to the approval of any off -site borrow source(s) developed for use on this
project, the Contractor shall obtain certification from the State Historic
Preservation Officer of the State Department of Cultural Resources certifying
that the removal of the borrow material from the borrow source(s) will have no
effect on any known district, site building, structure, or object that is included or
eligible for inclusion in the National Register of Historic Places. A copy of this
certification shall be furnished to the Engineer prior to performing any work on
the proposed borrow source.
The approval of borrow sources furnished by the Contractor shall be subject to
the following conditions:
a. The Contractor shall be responsible for acquiring the right to take the
material and any rights of access that may be necessary; for locating and
developing the source; and any clearing and grubbing and drainage
ditches necessary.
Such right shall be in writing and shall include an agreement with the
Owner that the borrow source may be dressed, shaped, seeded,
mulched, and drained as required by these Specifications after all borrow
has been removed.
b. Except where borrow is to be obtained from a commercial source, the
Contractor and the property owner shall jointly submit a borrow source
development, use, and reclamation plan to the Engineer for his approval
prior to engaging in any land disturbing activity on the proposed source
other than material sampling that may be necessary. The Contractor's
plan shall address the following:
(1) Drainage
The source shall be graded to drain such that no water will collect
or stand and a functioning drainage system shall be provided. If
drainage is not practical, and the source is to serve as a pond, the
minimum average depth below the water table shall be 4 feet or
the source graded so as to create wetlands as appropriate.
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(2) Slopes
The source shall be dressed and shaped in a continuous manner
to contours which are comparable to and blend in with the
adjacent topography, but in no case will slopes steeper than 3:1
be permitted.
(3) Erosion Control
The plan shall address the temporary and permanent measures
that the Contractor intends to employ during use of the source
and as a part of the reclamation. The Contractor's plan shall
provide for the use of staged permanent seeding and mulching on
a continual basis while the source is in use and the immediate
total reclamation of the source when no longer needed.
4. Maintenance
During construction and until final acceptance the Contractor shall use
any methods approved by the Engineer which are necessary to maintain
the work covered by this section so that the work will not contribute to
excessive soil erosion.
- END OF SECTION -
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SECTION 02276
EROSION AND SEDIMENTATION CONTROL
PART 1 -- GENERAL
1.01 THE REQUIREMENTS
A. The Contractor is responsible for implementing Best Management Practices (BMPs) to
prevent and minimize erosion and resultant sedimentation in all cleared and grubbed
areas during and after construction. This item covers the work necessary for the
installation of structures and measures for the prevention of soil erosion and control of
sedimentation. The Contractor shall furnish all material, labor and equipment necessary
for the proper installation, maintenance, inspection, monitoring, reporting, and removal
(where applicable) of erosion prevention and sediment control measures and, if
applicable, to cause compliance with all local permits and the State of North Carolina
Department of Environmental Quality Division of Water Quality General Permit — NCG
010000 to Discharge Stormwater under the National Pollution Discharge Elimination
System for Construction Activities, for any land disturbance or construction activity of
one (1) acre or more, under this Section 02276.
B. Any land disturbance as the result of modifications to a site's drainage features or
topography requires protection from erosion and sedimentation.
C. All excavations shall be in conformity with the lines, grades, and cross sections shown
on the Contract Drawings or established by the Engineer.
D. It is the intent of this Specification that the Contractor conducts the construction activities
in such a manner that erosion of disturbed areas and off site sedimentation be
absolutely minimized.
E. All work under this Contract shall be done in conformance with and subject to the
limitations of the North Carolina Rules and Regulations for Erosion and Sedimentation
Control as adopted by the North Carolina Sedimentation Control Commission (15A
NCAC, Chapter 4, latest edition).
F. The following excerpts from the regulations are particularly important:
Pursuant to North Carolina G.S. 113A-57(2), the angle of graded slopes and fills
shall be no greater than the angle that can be retained by vegetative cover or
other adequate erosion -control devices or structures.
2. As per North Carolina DWQ Construction General Permit NCG01, perimeter
dikes, swales, ditches and slopes, disturbed areas within High Quality Water
(HWQ) Zones, and slopes steeper than 3H:1V following completion of any phase
of grading, shall be planted or otherwise provided with temporary or permanent
ground cover, devices, or structures sufficient to restrain erosion within 7
calendar days.
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3. All other slopes of 3H : 1 V or flatter, except those with slopes greater than 50 feet
in length or within HWQ Zones, following completion of any phase of grading,
shall be planted or otherwise provided with temporary or permanent ground
cover, devices, or structures sufficient to restrain erosion within 14 calendar
days.
G. Due to the nature of the work required by this Contract, it is anticipated that the location
and nature of the erosion and sediment control devices will be adjusted on several
occasions to reflect the current phase of construction. The construction schedule
adopted by the Contractor will impact the placement and need for specific devices
required for the control of erosion. The Contractor shall develop and implement such
additional techniques as may be required to minimize erosion and off -site sedimentation.
The location and extent of erosion and sedimentation control devices shall be revised at
each phase of construction that results in a change in either the quantity or direction of
surface runoff from constructed areas. All deviations from the erosion and
sedimentation control provisions shown on the Contract Drawings shall have the prior
acceptance of the Engineer and shall be completed at no additional cost to the Owner.
H. Erosion and sedimentation controls applicable to this project shall be as shown on the
Contract Drawings, as specified herein, as indicated by the Engineer and as detailed in
the North Carolina Erosion and Sediment Control Planning and Design Manual.
1.02 RELATED WORK SPECIFIED ELSEWHERE
A. Section 01300 —Submittals
B. Section 02100 —Clearing, Grubbing, and Site Preparation
C. Section 02140 — Dewatering
D. Section 02200 — Trenching, Backfilling and Compacting for Utilities
E. Section 02500 — Surface Restoration
F. Section 02910 — Final Grading, Seeding and Landscaping
1.03 REFERENCE SPECIFICATIONS, CODES AND STANDARDS
A. Without limiting the generality of other requirements of these specifications, all work
hereunder shall conform to the applicable requirements of the referenced portions of the
following documents, to the extent that the requirements therein are not in conflict with
the provisions of this Section.
15A NCAC, Chapter 4
2. North Carolina Erosion and Sediment Control Planning and Design Manual,
latest edition
3. North Carolina Department of Environment and Natural Resources General
Permit NCG 010000 to Discharge Stormwater under the National Pollution
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Discharge Elimination System for Construction Activities, for any land
disturbance or construction activity of one (1) acre or more
4. North Carolina Department of Transportation Standard Specifications for Roads
and Structures, latest edition
5. North Carolina Division of Water Quality Stormwater Best Management Practices
Manual, latest edition
B. See Specification Section 01090 - Reference Standards.
1.04 REGULATORY COMPLIANCE
A. Land disturbance activities are not authorized to begin until after all required erosion and
sediment control permits are obtained from the United States, the State of North
Carolina and local authorities, as necessary. Contractor is the Co -Primary Permittee
and Operator under the provisions of the NPDES Permit. As such, the Contractor will be
required to sign certain certifications as described in the NPDES Permit. Contractor
shall comply with requirements specified in the Contract Documents, on the approved
Erosion Control Plan, and by the Engineer. Contractor shall also comply with all other
laws, rules, regulations, ordinances and requirements concerning soil erosion and
sediment control established in the United States, the State of North Carolina and local
authorities as applicable. The following documents and the documents referenced
therein define the regulatory requirements for this Section 02276.
NPDES PERMIT: The North Carolina
General Permit NCG 010000 to Disch
Pollution Discharge Elimination System
permit) governs land disturbance or con
more. On applicable sites, Contractor is
and conditions of this permit.
Department of Environmental Quality
3rge Stormwater under the National
for Construction Activities (NPDES
struction activities of one (1) acre or
responsible for complying with terms
2. Manual for Erosion and Sediment Control: Contractor shall follow Practices and
Standards of the North Carolina Erosion and Sediment Control Planning and
Design Manual (NC ESCPDM), latest edition.
B. During the period beginning on the effective date of the permit and lasting until
expiration, the Permittee is authorized to discharge stormwater associated with
construction activity including clearing, grading and excavation activities resulting in the
disturbance of land and related support activities. Such discharges shall be controlled,
limited and monitored as specified below.
The Contractor, as Co -Primary Permittee and Operator under the provisions of
the NPDES Permit, shall submit a plan for compliance with the Owner -provided
approved erosion and sedimentation control plan to the Engineer for approval.
Plans must include designation of where 7 and 14-day ground stabilization
requirements and where basins which comply with surface -withdrawal
requirements of the NPDES permit, if applicable, are located. Land disturbing
activity shall not commence until the plan is approved by the Engineer. Maintain
an up-to-date copy of the approved plan on the site.
2. Implement the approved plan. Deviation from the plan is allowed only to correct
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emergency situations of sediment discharge offsite or when minor modifications
are made to improve performance of the measures and the approval authority
has been notified. Note allowed deviations on the plan maintained on the site.
3. Manage onsite activities such that no adverse impacts to water quality occur from
site activities or allowed discharges. The following activities, and others on a
site -specific basis, require oversight throughout the construction and
development process to assure that all water quality standards are protected.
a. Equipment Operation and Maintenance: Equipment utilized during the
construction activity on a site must be operated and maintained in such a
manner as to prevent the potential or actual pollution of the surface or
ground waters of the State. Fuels, lubricants, coolants, and hydraulic
fluids, or any other petroleum products, shall not be discharged onto the
ground or into surface waters. Spent fluids shall be disposed of in a
manner so as not to enter the waters, surface or ground, of the State and
in accordance with applicable state and federal disposal regulations. Any
spilled fluids shall be cleaned up to the extent practicable and disposed of
in a manner so as not to allow their entry into the waters, surface or
ground, of the State.
b. Material Handling: Herbicide, pesticide, and fertilizer usage during the
construction activity shall be consistent with the Federal Insecticide,
Fungicide, and Rodenticide Act and shall be in accordance with label
restrictions.
C. Building Material Waste Handling: All wastes composed of building
materials shall be disposed of in accordance with North Carolina General
Statutes, Chapter 130A, Article 9 - Solid Waste Management, and rules
governing the disposal of solid waste (North Carolina Administrative Code
Section 15A NCAC 13B). In particular, the following guidelines shall be
followed:
No paint or liquid wastes in streams or storm drains.
Dedicated area for demolition, construction, and other wastes
must be located a minimum of 50' from storm drains and streams
unless no reasonable alternatives are available.
iii. Earthen -material stockpiles must be located a minimum of 50'
from storm drains and streams unless no reasonable alternatives
are available.
iv. Concrete materials onsite, including excess concrete, must be
controlled to avoid contact with surface waters, wetlands, or
buffers. (Note discharges from onsite concrete plants may require
coverage under a separate NPDES permit — NCG140000).
d. Litter and Sanitary Waste: The Permittee shall control the management
and disposal of litter and sanitary waste from the site.
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C. Violations and Fines
Contractor shall be responsible for reimbursing the Owner for any fines incurred
as a result of violations to the NC Sedimentation Pollution Control Act, the
NPDES General Permit for Stormwater Discharges on Construction Sites, and
any applicable delegated local program's sediment control regulations until
construction activities are complete and the project is accepted by the Owner.
These include fines levied by the NCDEQ Division of Land Quality, NCDEQ
Division of Water Quality and delegated local programs.
2. If violations result in the issuance of a Notice of Violation, the Contractor shall
comply with the requirements of the Notice within the specified time period for
compliance. Failure to comply could result in the assessment of a penalty for
each day of the continuing violation, beginning with the date of the violation.
3. Violations may result in civil and/or criminal penalties which include fines and
imprisonment.
1.05 SUBMITTALS
A. Prior to the start of the work, the Contractor shall prepare and submit a plan for
implementing the temporary and permanent erosion and sedimentation control
measures as shown on the Erosion and Sediment Control Plan approved by the
appropriate regulatory authority. Construction work shall not commence until the
schedule of work and the methods of operations have been reviewed and approved.
B. The Contractor shall perform inspections of erosion and sedimentation control measures
and stormwater discharge outfalls and prepare inspection reports as described in Part 3
of this Section. Copies of the inspection reports shall be submitted to the Engineer on a
monthly basis.
C. In accordance with the procedures and requirements set forth in the General Conditions
Division 1 and Section 01300 - Submittals, the Contractor shall submit the following:
1. Name and location of all material suppliers.
2. Certificate of compliance with the standards specified above for each source of
each material.
3. List of disposal sites for waste and unsuitable materials and evidence of all
required permits for use of those sites.
1.06 GUARANTEE
A. All restoration and re -vegetation work shall be subject to the one-year guarantee period
of the Contract as specified in the General Conditions.
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PART 2 -- MATERIALS
2.01 MATERIALS
A. Materials for use in erosion and sedimentation control devices shall be in accordance
with the NC ESCPDM.
B. All erosion and sediment control bid prices shall include all excavation, grading,
maintenance, legal sediment disposal, permits and all other work and appurtenances
necessary to design, install and maintain the sediment and erosion control measures as
detailed herein and in accordance with the NC ESCPDM.
2.02 SILT FENCE
A. Silt (or sediment) fence shall be constructed as shown on the Contract Drawings, at
other locations indicated by the Engineer, as specified herein, and as detailed in Section
6.62 of the NC ESCPDM. Silt fences shall be installed below small disturbed areas that
are less than '/4 acre disturbed per 100-feet of fence when slopes are less than 2%.
Contractor shall refer to Table 6.62a in the NC ESCPDM for criteria. Silt fence shall not
be installed across streams, ditches, or waterways or other areas of concentrated flows.
B. Silt fence shall be designed, installed and maintained in accordance with Part 3 of this
Section and Section 6.62 of the NC ESCPDM. Silt fence shall be a woven geotextile
filter fabric made specifically for sediment control. Filter fabric shall not rot when buried
and shall resist attack from soil chemicals, alkalines and acids in the pH range from 2 to
13, and shall resist damage due to prolonged ultraviolet exposure. Filter fabric shall be
C-50NW as manufactured by Contech Earth Stabilization Solutions, GT 142 as
manufactured by SKAPS Industries, Soiltex ST 120N as manufactured by Geo-
Synthetics, Inc., or approved equal. The cost of silt fence shall include the materials,
excavation, backfill, aggregate, etc. and all maintenance and restoration activities
required.
C. Silt fence shall be stable for the 10-year peak storm runoff. Fabric shall meet the
following specifications:
Temporary Silt Fence Material
Property Requirements
Test
Material
Units
Supported'
Silt Fence
Un-Supported'
Silt Fence
Type of
Value
Grab Strength
ASTM
D 4632
N (lbs)
Machine Direction
400
550
MARV
90
90
x-Machine Direction
400
450
MARV
90
90
Permittivityz
ASTM
D 4491
sec-1
0.05
0.05
MARV
Apparent Opening
Size
ASTM
D 4751
mm
0.60
0.60
Max.
ARV3
US Sieve #
30
30
Ultraviolet Stability
ASTM
D 4355
% Retained
Strength
70% after
500 hours
exposure
70% after 500
hours exposure
Typical
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Silt Fence support shall consist of 14 gage steel wire with a mesh spacing of 150 mm (6 inches),
or prefabricated polymer mesh of equivalent strength.
2 These default values are based on empirical evidence with a variety of sediment. For
environmentally sensitive areas, a review of previous experience and/or site or regionally
specific geotextile tests in accordance with Test Method D 5141 should be performed by the
agency to confirm suitability of these requirements.
3 As measured in accordance with Test Method D 4632.
D. The synthetic filter fabric shall consist of at least 95% by weight of polyolefins or
polyester, certified by the manufacturer, and as specified by Section 6.62 of the NC
ESCPDM.
E. The posts for silt fences shall be 1.33 lb/linear feet steel with a minimum length of 5 feet;
posts shall have projections to facilitate fastening of the fabric.
F. For reinforcement of standard strength filter fabric use wire fence with a minimum 14
gauge and a maximum mesh spacing of 6 inches.
2.03 STONE FOR EROSION CONTROL
A. The Contractor shall place stone for erosion control as shown on the Contract Drawings,
as specified herein, as specified in Section 1610 of the NCDOT Standard Specifications,
and as detailed in Section 6.15 of the NC ESCPDM. The stone for erosion control shall
consist of field stone or rough un-hewn quarry stone. The stone shall be sound, tough,
dense, and resistant to the action of air and water. The stone for erosion control shall be
Class (A) or Class (B) as specified in the NCDOT Standard Specifications, Section 1610,
unless otherwise shown on the Contract Drawings.
B. Stone for erosion control shall be designed, installed and maintained in accordance with
Part 3 of this Section, Section 1610 of the NCDOT Standard Specifications, and Section
6.15 of the NC ESCPDM. The cost for stone for erosion control shall include furnishing,
weighing, stockpiling, re -handling, placing and maintaining stone; disposal of any stone
not incorporated into the project if directed by the Engineer; and any other incidentals
necessary to complete the work.
2.04 RIP RAP
A. The Contractor shall place rip rap as shown on the Contract Drawings, as specified in
Section 1042 of the NCDOT Standard specifications for plain rip rap, and as detailed in
Section 6.15 of the NC ESCPDM. The stone for rip rap shall consist of field stone or
rough un-hewn quarry stone. The rip rap shall be sound, tough, dense, and resistant to
the action of air and water. Neither the width nor thickness of individual stones shall be
less than one third their length. The rip rap shall be Class 1 or 2 as specified in the
NCDOT Standard Specifications, Section 1042, unless otherwise shown on the Contract
Drawings.
B. Rip rap shall be designed, installed and maintained in accordance with Part 3 of this
Section, Section 1042 of the NCDOT Standard Specifications, and Section 6.15 of the
NC ESCPDM. The cost for rip rap shall include furnishing, weighing, stockpiling,
rehandling, placing and maintaining rip rap; disposal of any rip rap not incorporated into
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the project if directed by the Engineer; and any other incidentals necessary to complete
the work.
2.05 ROLLED EROSION CONTROL PRODUCTS (RECPs)
A. RECPs, including Turf Reinforcement Mat (TRM), shall be installed as shown on the
Contract Drawings, at other locations indicated by the Engineer, as specified herein, and
as detailed in Section 6.17 of the NC ESCPDM. RECPs should be utilized to aid
stabilization of slopes greater than 2:1 and with more than 10 feet of vertical relief.
RECPs should also be used when mulch cannot be adequately tacked and where
immediate ground cover is required to prevent erosion damage. Examples of RECPs
are blankets, nets and matting.
B. RECPs shall be designed, installed and maintained in accordance with Part 3 of this
Section and Section 6.17 of the NC ESCPDM. The cost for RECPs shall include all
excavation, grading, and materials, and all maintenance activities.
C. RECPs shall be used to aid in permanent stabilization of vegetated channels where
runoff velocity will exceed 2 feet/second on bare earth during the 2-year rainfall event
that produces peak runoff.
D. RECPs shall be chosen based on the Design Criteria detailed in Section 6.17 of the NC
ESCPDM. Typically, nets shall be used in conjunction with mulch; the use of mulch is
typically not required with excelsior, woven straw blankets and coir blankets.
E. The recommended anchoring devices are 12-inch minimum length wooden stakes, 11-
gauge staples that are at least 6 inches long by 1 inch wide, or rigid, biodegradable
stakes of a minimum of 6 inches in length. If Manufacturer's recommendations are more
stringent, they shall supersede.
F. The minimum bare soil shear stress values for specific RECPs are as follows:
Straw with net temporary RECP shall be North American Green S150, American
Excelsior Co. Curlex I, Contech SFB1, or equal with a minimum bare soil shear
stress value of 1.5 Ib/ft2.
2 Curled wood or coconut fiber RECP shall be American Excelsior Curlex II, North
American Green C125, Contech EFB4 or equal matting with a minimum bare soil
shear stress value of 2.0 Ib/ft2.
3. Synthetic Turf Reinforcement Mat (TRM) shall be Enkamat 7020 as
manufactured by Colbond Geosynthetics, Synthetic Industries Landlock Erosion
Mat TRM 1060, TH8 as manufactured by TC Mirafi, or equal matting with a
minimum long-term vegetated shear stress value of 5.0 Ib/ft2.
2.06 TEMPORARY AND PERMANENT DIVERSIONS
A. Temporary diversions shall be constructed as shown on the Contract Drawings, at other
locations indicated by the Engineer, as specified herein, and as detailed in Sections 6.20
and 8.05 of the NC ESCPDM. Permanent diversions shall be constructed as shown on
the Contract Drawings, at other locations indicated by the Engineer, as specified herein,
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and as detailed in Section 6.21 and 8.05 of the NC ESCPDM. Temporary diversions
shall be constructed adjacent to disturbed areas to collect surface runoff from disturbed
areas and direct the runoff to sediment basins or to divert non -sediment laden runoff
away from undisturbed areas and/or sediment basins. All temporary diversions
transporting sediment -laden runoff shall terminate in a sediment trapping device.
Permanent diversions should be planned as a part of initial site development and should
be coordinated with temporary diversions. All temporary and permanent diversions shall
be stabilized with vegetation or other means within 7 days of installation. Permanent
diversions shall be used to divert water to locations where it can be used or released
without erosion or flood damage. Dimensions shall be as shown on the Contract
Drawings.
B. Temporary diversions shall be designed, installed and maintained in accordance with
Part 3 of this Section and Sections 6.20 and 8.05 of the NC ESCPDM, to the satisfaction
of the Engineer, until the site has been stabilized. Permanent diversions shall be
designed, installed and maintained in accordance with Part 3 of this Section and
Sections 6.21 and 8.05 of the NC ESCPDM. The cost of temporary and permanent
diversions shall include the excavation, grading, materials, etc. and all maintenance and
restoration activities required.
2.07 TEMPORARY SLOPE DRAINS
A. Temporary slope drains shall be constructed as shown on the Contract Drawings, at
other locations indicated by the Engineer, as specified herein, and as detailed in Section
6.32 of the NC ESCPDM. Temporary slope drains are used to convey concentrated
runoff down the face of a slope without causing erosion and are generally used in
conjunction with temporary diversions.
B. The pipe diameter for temporary slope drains shall be selected according to Table 6.32a
of the NC ESCPDM. The pipe shall be heavy-duty flexible material such as non -
perforated, corrugated plastic pipe or specially designed flexible tubing.
C. Temporary slope drains shall be designed, installed and maintained in accordance with
Part 3 of this Section and Section 6.32 of the NC ESCPDM, to the satisfaction of the
Engineer, until the site has been stabilized. The cost of the temporary slope drains shall
include the piping, earthwork, stone for erosion control, and all maintenance activities
required.
2.08 TEMPORARY GRAVEL CONSTRUCTION ENTRANCES/EXITS
A. Temporary gravel construction entrances/exits shall be located at points where vehicles
enter and leave a construction site, at other locations indicated by the Engineer, as
specified herein, and as detailed in Section 6.06 of the NC ESCPDM.
B. Temporary gravel construction entrances/exits shall be constructed with a minimum 6
inch layer of 2 — 3 inch washed stone placed over a stable foundation and shall be a
minimum of 100 feet in length and 25 feet in width. Geotextile fabric shall be used under
stone as shown on the Contract Drawings.
C. Temporary gravel construction entrances/exits shall be designed, installed and
maintained in accordance with Part 3 of this Section and Section 6.06 of the NC
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ESCPDM, to the satisfaction of the Engineer, until the site has been stabilized. The cost
of temporary gravel construction entrances/exits shall include the materials and all
maintenance activities required, including additional tire washing as may be necessary.
2.09 TEMPORARY AND PERMANENT STABILIZATION OF DISTURBED AREAS
A. Temporary and permanent stabilization of disturbed areas will be provided at the
locations shown on the Contract Drawings, at other locations indicated by the Engineer,
as specified herein, and as detailed in Sections 6.10, 6.11, 6.12 and 6.14 of the NC
ESCPDM. The Contractor shall provide ground cover adequate to restrain erosion on
disturbed areas that will be left un-worked for periods exceeding 7 to 14 days, as noted
in Section 1.01. F. of this specification.
B. Soil amendments, including lime and fertilizer, shall be as detailed in Sections 6.10, 6.11
and 6.12 of the NC ESCPDM.
C. Seed mixtures shall be selected based on site location and seasonal recommendations
outlined in Sections 6.10 and 6.11 of the NC ESCPDM. Sod shall be selected based on
site location and intended use as outlined in Section 6.12 of the NC ESCPDM.
D. Mulch shall be as detailed in Section 6.14 of the NC ESCPDM. RECPs shall be as
detailed in 2.05 herein and in Section 6.17 of the NC ESCPDM.
E. Temporary soil stabilizer shall consist of an especially prepared highly concentrated
powder which, when mixed with water, forms a thick liquid such as "Enviroseal 2001" by
Enviroseal Corporation, "Terra Control" by Quattro Environmental, Inc., or "CHEM-
CRETE ECO-110" by International CHEM-CRETE Corporation, and having no growth or
germination inhibiting factors. The agent shall be used for hydroseeding grass seed in
combination with other approved amendments resulting in a highly viscous slurry which,
when sprayed directly on the soil, forms a gelatinous crust.
F. Temporary and permanent stabilization of disturbed areas shall be achieved in
accordance with Part 3 of this Section and Sections 6.10, 6.11, 6.12, 6.14 and 6.17 of
the NC ESCPDM. The cost of temporary and permanent stabilization of disturbed areas
shall include all grading, excavation and materials as well as all reseeding and other
maintenance activities required until stabilization is achieved.
2.10 CHECK DAMS AND CHECK DAMS WITH WEIRS
A. Check dams shall be constructed at the locations shown on the Contract Drawings, at
other locations indicated by the Engineer, as specified herein, and as detailed in Section
6.83 of the NC ESCPDM. Check dams with weirs shall be constructed at the locations
shown on the Contract Drawings, at other locations indicated by the Engineer, as
specified herein, and as detailed in Section 6.87 of the NC ESCPDM.
B. Check dams and check dams with weirs shall not be constructed in an intermittent or
perennial stream. The drainage area for any one check dam or check dam with weir
shall be limited to'/Z acre.
C. Dimensions shall be as shown on the Contract Drawings. Check dams shall be
constructed of stone or riprap with filter fabric, fiber filtration tubes, or sediment logs, as
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indicated on the Contract Drawings. Check dams with weirs shall be constructed of
stone or riprap with filter fabric. Material specifications for stone, riprap, fiber filtration
tubes, and sediment logs appear herein. If Manufacturer's recommendations are more
stringent, they shall supersede. Filter fabric shall be Type II Separator Geotextile, as
specified in Section 02274 — Geotextiles.
D. Check dams shall be designed, installed and maintained in accordance with Part 3 of
this Section and Section 6.83 of the NC ESCPDM. Check dams with weirs shall be
designed, installed and maintained in accordance with Part 3 of this Section and Section
6.87 of the NC ESCPDM. The cost of check dams and check dams with weirs shall
include all excavation, grading and materials as well as all maintenance activities
required.
2.11 INLET EROSION CONTROL MEASURES
A. Yard, Curb and other Inlet Erosion Control Measures shall be constructed at the
locations shown on the Contract Drawings, at other locations indicated by the Engineer,
as specified herein, and as detailed in Sections 6.50 through 6.55 of the NC ESCPDM.
Inlet erosion control measures shall be used to prevent or limit the introduction of
sediment to storm drain systems and allow early use of the of the storm drainage
system. Maximum drainage areas for inlet erosion control measures vary from 1 acre
for excavated drop inlet protection, hardware & cloth gravel inlet protection, and block
and gravel inlet protection to more than 5 acres for rock pipe inlet protection. In addition
to the inlet protection measures described in the NC ESCPDM, other measures may be
specified by the Engineer. For measures not detailed in the NC ESCPDM, the materials
will be as specified by the Engineer's and Manufacturer's instructions, with more
stringent specifications superseding.
B. Materials for Inlet Erosion Control Measures consist of silt fence, riprap, stone (gravel),
hardware wire, sod, concrete blocks, and sediment logs. Riprap and stone for erosion
control shall be as specified herein. Hardware wire shall be as specified in Section 6.51
of the NC ESCPDM. Sod shall conform to the specifications set forth in Section 6.12 of
the NC ESCPDM. Concrete blocks shall be as specified in Section 6.52 of the NC
ESCPDM. Material specifications for sediment logs appear within. If Manufacturer's
recommendations are more stringent, they shall supersede.
C. Inlet Erosion Control Measures shall be designed, installed and maintained in
accordance with Part 3 of this Section and Sections 6.50 through 6.55 of the NC
ESCPDM. Measures not described in the NC ESCPDM shall be designed, installed,
and maintained in accordance with the Engineer's and Manufacturer's instructions, with
more stringent instructions superseding. The cost of inlet erosion control measures shall
include all excavation, grading and materials as well as all maintenance activities
required.
2.12 FIBER FILTRATION TUBES (FFTs) AND SEDIMENT LOGS
A. FFTs and sediment logs shall be installed at the locations shown on the Contract
Drawings, at other locations indicated by the Engineer, and as specified herein.
B. FFTs shall consist of composite wood fibers and man-made fibers, with or without
performance -enhancing polymers, encased with cylindrical tubes composed of a heavy-
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duty, knitted, high density polyethylene mesh. The photodegradable mesh shall be
oriented in a diamond or hexagonal pattern and shall move freely at all knitted yarn
intersections.
C. Sediment logs shall consist of natural fibers (wood, coconut, etc.) inside heavy duty
knitted cylindrical tubing.
D. FFTs and sediment logs shall be designed, installed and maintained as specified herein.
If Manufacturer's recommendations are more stringent, they shall supersede. The cost
of FFTs shall include all excavation, grading and materials as well as all maintenance
activities required.
2.13 TEMPORARY AND PERMANENT CHANNELS
A. Temporary and permanent channels shall be installed at the locations shown on the
Contract Drawings, at other locations indicated by the Engineer, as specified herein, and
as detailed in Sections 6.30, 6.31 and 8.05 of the NC ESCPDM. Temporary and
permanent channels shall be used to convey concentrated runoff without damage from
erosion, deposition or flooding.
B. Temporary and permanent channels shall be designed, installed and maintained in
accordance with Part 3 of this Section and Sections 6.30, 6.31 and 8.05 of the NC
ESCPDM. The cost of all temporary and permanent channels shall include all
excavation, grading and materials as well as all maintenance activities required.
2.14 TEMPORARY SEDIMENT TRAPS, SEDIMENT BASINS, AND SKIMMER SEDIMENT
BASINS
A. Temporary sediment traps shall be constructed as shown on the Contract Drawings, at
the termination of all temporary diversions diverting sediment laden runoff, at other
locations indicated by the Engineer, as specified herein, and as detailed in Section 6.60
of the NC ESCPDM. These temporary measures shall not be constructed within an
intermittent or perennial stream and shall be installed prior to any land disturbance
activities within the drainage area. Temporary sediment traps shall be constructed by
excavating the appropriate size rectangular basin and constructing a rock -fill dam on the
discharge end. Where specific elevations are not indicated on the Contract Drawings,
Contractor shall maintain basins at the depths shown below working grades.
B. Sediment basins shall be installed at the locations shown on the Contract Drawings, at
other locations indicated by the Engineer, as specified herein, and as detailed in
Sections 6.61 and 8.07 of the NC ESCPDM. Skimmer sediment basins shall be installed
at the locations shown on the Contract Drawings, at other locations indicated by the
Engineer, as specified herein, and as detailed in Section 6.64 of the NC ESCPDM.
Sediment basins and skimmer sediment basins shall be used where drainage areas are
too large for temporary sediment traps. Outlet structures must withdraw from basin
surface unless drainage area is less than 1 acre. They shall retain sediment on the
site and prevent off site sediment in waterways, and they shall not be located in
intermittent or perennial streams. Sediment basins and skimmer sediment basins shall
be installed prior to any land disturbance activities within the drainage area.
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C. Porous baffles shall be installed in temporary sediment traps, sediment basins, and
skimmer sediment basins as shown on the Contract Drawings, at other locations
indicated by the Engineer, as specified herein, and as detailed in Section 6.65 of the NC
ESCPDM. Porous baffles are used to reduce the velocity and turbulence of the water
flowing through the structure and to facilitate the settling of sediment in the water before
discharge. They effectively spread the flow across the entire width of a structure.
D. Material used for porous baffles shall be as indicated on the Contract Drawings. Typical
materials include silt fence, coir erosion blanket, coir mesh, and tree protection fence.
Other materials may be used as noted on the Contract Drawings and indicated by the
Engineer.
E. The structure life for temporary sediment traps shall be limited to 2 years. Temporary
sediment traps shall be spaced to limit the maximum tributary drainage area to 5 acres.
The basin life of sediment basins and skimmer sediment basins shall be limited to 3
years unless they are designed as permanent structures. The drainage area for
sediment basins and skimmer sediment basins shall be limited to 100 acres.
F. The principal spillway for sediment basins shall consist of a riser and barrel. Ensure that
the pipe is capable of withstanding the maximum expected load without yielding,
buckling, or cracking. The basin should be provided with a skimmer or flashboard riser
to dewater the basin from the water surface. The emergency spillway shall be
constructed in undisturbed soil. The principal spillway outlet and emergency spillway
shall be stabilized as shown on the Contract Drawings. Materials shall be as noted on
the Contract Drawings.
G. The principal spillway for skimmer sediment basins shall consist of a skimmer which
dewaters the basin from the top of the water surface at a controlled rate. A dewatering
rate of 24 to 72 hours is required. The skimmer outlet pipe shall be capable of
withstanding the maximum expected load without yielding, buckling, or cracking. The
emergency spillway shall be constructed in undisturbed soil whenever possible and shall
be lined with impermeable geotextile fabric in accordance with Section 02274 —
Geotextiles. The principal spillway outlet and emergency spillway shall be stabilized as
shown on the Contract Drawings.
H. Temporary sediment traps shall be designed, constructed and maintained in accordance
with Part 3 of this Section and Section 6.60 of the NC ESCPDM, to the satisfaction of the
Engineer, until the sediment producing areas have been permanently stabilized. The
cost of the temporary sediment traps shall include the excavation, grading, fill, baffles,
stone for erosion control, washed stone, geotextile, etc. and all maintenance activities
required.
Sediment basins shall be designed, installed and maintained in accordance with Part 3
of this Section and Sections 6.61 and 8.07 of the NC ESCPDM. Skimmer sediment
basins shall be designed, installed and maintained in accordance with Part 3 of this
Section and Section 6.64 of the NC ESCPDM. The cost of sediment basins and skimmer
sediment basins shall include all excavation, grading and materials as well as all
maintenance activities required.
Porous baffles shall be designed, installed and maintained in accordance with Part 3 of
this Section and Section 6.65 of the NC ESCPDM. The cost of porous baffles shall
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include all excavation, grading and materials as well as all maintenance activities
required.
2.15 OUTLET STABILIZATION STRUCTURE
A. Outlet stabilization structures shall be constructed at the locations shown on the
Contract Drawings, at other locations indicated by the Engineer, as specified herein, and
as detailed in Sections 6.41 and 8.06 of the NC ESCPDM. These structures shall be
used where the discharge velocity of the upstream water conveyance structure exceeds
the permissible velocity of the receiving channel or disposal area.
B. Structures shall be sized for a capacity equivalent to a 10-year, peak runoff or design
discharge of the water conveyance structure, whichever is greater. Riprap materials
shall be as specified on the Contract Drawings. Filter fabric shall be Type II Separator
Geotextile, as specified in Section 02274 — Geotextiles.
C. Outlet stabilization structures shall be designed, installed and maintained in accordance
with Part 3 of this Section and Sections 6.41 and 8.06 of the NC ESCPDM. The cost of
outlet stabilization structures shall include all excavation, grading and materials as well
as all maintenance activities required.
2.16 FLEXIBLE GROWTH MEDIUM
A. Flexible growth medium shall be applied at the locations shown on the Contract
Drawings, at other locations indicated by the Engineer, and as specified herein.
B. Flexible growth medium is a spray -on flexible blanket that controls soil erosion and
accelerates seed germination for establishment of vegetation. It is made of wood fibers,
man-made fibers, and additives that are applied wet to the prepared surface. The
flexible growth medium may be mixed with seed and fertilizer prior to application. Seed
and fertilizer rates shall comply with applicable stabilization of disturbed area
requirements of this Section.
C. Flexible growth medium shall not be used in areas of concentrated flow unless installed
in conjunction with a RECM or TRM.
D. Flexible growth medium shall be installed and maintained in accordance with Part 3 of
this Section. If Manufacturer's recommendations are more stringent, they shall
supersede. The cost of flexible growth medium shall include all materials as well as all
maintenance activities required.
2.17 TREE PROTECTION FENCE
A. Tree protection fence shall be installed at the locations shown on the Contract Drawings,
at other locations indicated by the Engineer, as specified herein, and as detailed in
Section 6.05 of the NC ESCPDM.
B. Tree protection fence shall used to protect trees and their root zones during
construction. Tree protection fence shall be brightly -colored, UV -resistant poly barricade
fabric. Signs designating the area as protected shall be installed on all sides of the
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fence. Wording and spacing of the signage shall be as indicated on the Contract
Drawings.
C. Tree protection fence shall be installed and maintained in accordance with Part 3 of this
Section and Section 6.05 of the NC ESCPDM. The cost of tree protection fence shall
include all materials as well as all maintenance activities required.
PART 3 -- EXECUTION
3.01 INSTALLATION AND MAINTENANCE
A. All installation and maintenance shall be conducted in accordance with this specification
and the NC ESCPDM. In the event of a discrepancy between this specification,
Manufacturer's recommendations and the NC ESCPDM, the more stringent
requirements shall take precedence.
B. If applicable, all requirements of the NPDES Permit shall be followed. In the event of a
discrepancy between this specification and the NPDES Permit requirements, the more
stringent requirements shall take precedence.
C. If possible, erosion and sedimentation control devices shall be established prior to
clearing operations in a given area. Where such practice is not feasible, the erosion and
sedimentation control device(s) shall be established concurrent with the clearing
operations or immediately following completion of the clearing operations.
D. The Contractor shall furnish the labor, materials and equipment required for routine
maintenance of all erosion and sedimentation control devices. At a minimum,
maintenance shall be scheduled as required for a particular device to maintain the
removal efficiency and intent of the device. Note that specific maintenance intervals for
various measures and practices are specified within the NC ESCPDM. Of the
maintenance requirements specified herein and in the NC ESCPDM, the more stringent
shall take precedence for each and every sediment and erosion control measure utilized
on the site. Maintenance shall include but not be limited to 1) the removal and
satisfactory, legal disposal of accumulated sediment from traps or silt barriers and 2)
replacement of filter fabrics used for silt fences and stone impaired by sediment in stone
filters, gravel construction entrances, etc. Maintenance as noted in items 1) and 2)
above shall be performed as required, and at least once every 3 months for the duration
of construction activities. Sediment removed from erosion and sedimentation control
devices shall be disposed of in locations that will not result in off -site sedimentation as
acceptable to the Engineer, at no additional cost to the Owner. If no suitable on site
locations are available, all such sediment will be legally disposed of off site, at no
additional cost to the Owner.
3.02 SILT FENCE
A. Silt Fence shall be designed, installed and maintained in accordance with the
requirements of Section 6.62 of the NC ESCPDM. Silt fence shall be erected at the
locations shown on the Contract Drawings and at all other locations as may be directed
by the Engineer. Silt fence shall be erected and maintained to the satisfaction of the
Engineer until a vegetative ground cover has been established. Replacement of the
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filter fabric and its associated appurtenances, if required by the Engineer, will be at the
Contractor's expense.
B. Silt fence shall not be installed across streams, ditches, waterways or other areas of
concentrated flow.
C. Dig a trench approximately 8 inches deep and 4 inches wide and place the fabric in the
bottom of the excavated ditch or use the slicing method to insert the fabric into a cut
sliced in the ground with a disc. Ensure that the height of the sediment fence does not
exceed 24 inches above the ground surface.
D. Install posts 4 feet apart in critical areas and 6 feet apart on standard applications when
extra strength filter fabric is used. When wire mesh support is used, posts shall be
installed a maximum of 8 feet apart. Install posts 2 feet deep on the downstream side of
the silt fence, as close as possible to the fabric.
E. Joints should be avoided along the fencing. When joints are necessary, securely fasten
the filter cloth only at a support post with 4 feet minimum overlap to the next post.
F. Compaction is vitally important for effective results. Compact the soil immediately next
to the silt fence fabric with the front wheel of the tractor, skid steer or roller exerting at
least 60 pounds per square inch. Compact the upstream side first and then each side
twice for a total of 4 trips.
G. Stabilized outlets for silt fence shall be provided at locations shown on the Contract
Drawings. The outlet section shall have a maximum width of 4 feet. The height of silt
fence at the outlet shall be a maximum of 1 foot. A 5 foot x 5 foot (minimum) apron of
#57 washed stone shall be provided on the downstream side of the silt fence outlet.
H. Silt fence shall be erected around all catch basins which are located downstream from
any construction work unless other inlet protection is specified. Should any catch basins
be indicated to be relocated or modified, silt fence shall be utilized until work is
completed on the catch basins. Upon completion of the modification, the area shall be
rough graded, as shown on the Contract Drawings, until the end of the project, at which
time final grading shall occur.
Inspect silt fence at least once a week and after each rainfall event. Make any required
repairs immediately.
Should the fabric of any silt fence collapse, tear, decompose or become ineffective,
replace it promptly. All fabric shall be replaced after the first 3 months of construction
activity and every 3 months thereafter until construction activities are complete.
K. Remove sediment deposits as necessary to provide adequate storage volume for the
next rain and to reduce pressure on the fence. Take care to avoid undermining the
fence during cleanout.
L. Remove all fencing materials and unstable sediment deposits and bring the area to
grade and stabilize it after the contributing drainage area has been properly stabilized.
Removal of any silt fence shall be permitted only with the prior approval of the Engineer
or the local governing agency.
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3.03 STONE FOR EROSION CONTROL
A. Stone for erosion control shall be designed, installed, and maintained in accordance with
the requirements of Section 6.15 of the ESCPDM. Stone for erosion control shall be
dumped and placed in such manner that the larger rock fragments are uniformly
distributed throughout the rock mass and the smaller fragments fill the voids between the
larger fragments. Rearranging of individual stones by equipment or by hand shall only
be required to the extent necessary to secure the results specified above, to protect
structures from damage when rock material is placed against the structures, or to protect
the underlying Separator Geotextile from damage during installation.
B. Inspect at least weekly and within 24 hours after any storm event of greater than '/2 inch
of rain per 24-hour period. Remove accumulated sediment and replace stone impaired
by sediment as necessary.
3.04 RIPRAP
A. Riprap shall be designed, installed and maintained in accordance with the requirements
of Section 6.15 of the NC ESCPDM. Riprap shall be graded so that the smaller stones
are uniformly distributed through the mass. The Contractor may place the stone by
mechanical methods, augmented by hand placing where necessary or ordered by the
Engineer. The placed riprap shall form a properly graded, dense, neat layer of stone.
The placed riprap shall have a minimum depth of 24 inches unless otherwise specified
by the Engineer. Type II Separator Geotextile, as specified in Section 02274 —
Geotextiles, shall be used under all riprap unless otherwise noted.
B. Inspect periodically for scour or dislodged stones. Control of weed and brush growth
may be needed.
3.05 ROLLED EROSION CONTROL PRODUCTS
A. RECPs shall be designed, installed and maintained in accordance with the requirements
of Section 6.17 of the NC ESCPDM. The Engineer may direct the Contractor to place
RECPs in permanent channels or on slopes at other locations in addition to those shown
on the Contract Drawings. If Manufacturer's instructions are more stringent, they shall
supersede.
B. The Contractor shall place the RECPs where directed immediately after the channel or
slope has been properly graded and, if applicable, prepared, fertilized, and seeded.
C. Grade the surface of the installation area so that the ground is smooth and loose. When
seeding prior to installation, follow the steps in Section 6.10 (Temporary Seeding) and
6.11 (Permanent Seeding) of the NC ESCPDM as applicable. Remove all large rocks,
debris, etc. so as to ensure that good contact between the RECP and the ground is
maintained so that no erosion occurs beneath the RECP. Terminal anchor trenches are
required at RECP ends and intermittent trenches must be constructed across channels
at 25-foot intervals. Terminal anchor trenches should be a minimum of 12 inches in
depth and 6 inches in width, while intermittent trenches should be a minimum of 6 inches
deep and 6 inches wide. Take care to maintain direct contact between the soil and the
RECP.
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D. For slope installation, place RECP 2-3 feet over top of slope and into an approximately
12 inch deep by 6 inch wide excavated end trench. Using staples, stakes, or pins,
anchor the RECP at 1 foot intervals along the bottom of the trench, backfill, and
compact. Along the slope, pin the RECP in a 3 foot center -to -center pattern; provide a
minimum 3 inch overlap for adjacent rolls.
E. For channel installations, excavate 12 inch deep by 6 inch wide terminal trenches across
the upper and lower end of the lined channel. Anchor the RECP at a minimum of 25 foot
intervals utilizing either two rows of anchors or 6 inch by 6 inch cross trenches. Bury
outside RECP edges in longitudinal trenches 6 inches deep and wide along the channel
edges. Pin the RECP in at 1 foot intervals along the bottom of terminal trenches,
backfill, and compact. Overlap adjacent rolls a minimum of 3 inches and pin at 1 foot
intervals. Place the first RECP at the downstream end of the channel and unroll
upstream. When starting installation of a new roll, begin in a trench or shingle -lap ends
of rolls a minimum of 1 foot with upstream RECP on top to prevent uplifting.
F. Staples, stakes, and pins shall be driven so that the top is flush with the ground.
G. During the establishment period, check RECPs at least weekly and within 24 hours after
any storm event of greater than '/2 inch of rain per 24-hour period. Immediately make
repairs. Good contact with the ground must be maintained. Monitor and repair the
RECP as necessary until ground cover is established.
3.06 TEMPORARY AND PERMANENT DIVERSIONS
A. Temporary diversions shall be designed, installed and maintained in accordance with the
requirements of Sections 6.20 and 8.05 of the NC ESCPDM. Permanent diversions
shall be designed, installed, and maintained in accordance with the requirements of
Sections 6.21 and 8.05 of the NC ESCPDM. The Contractor shall provide temporary
and permanent diversions at all locations noted on the Contract Drawings and at all
other locations as may be directed by the Engineer.
B. Remove and properly dispose of all trees, debris, etc. Fill and compact all ditches,
swales, etc. that will be crossed to natural ground level or above.
C. Excavate, shape and stabilize diversions as shown on the Contract Drawings and
described herein. Unless otherwise noted, provide vegetative stabilization immediately
after installation of permanent diversions. Temporary diversions that are to serve longer
than 7 working days shall be seeded and mulched as soon as they are constructed to
preserve dike height and reduce maintenance. Seed and mulch disturbed areas
draining into the diversions within 14 calendar days of completing any phase of grading.
D. For temporary diversions, ensure that the top of the dike is not lower at any point than
the design elevation plus the specified settlement. Provide sufficient room around
temporary diversions to permit machine re -grading and cleanout. Vegetate the ridge of
temporary diversions immediately after construction unless they will remain in place less
than 7 working days.
E. Provide outlet protection adequate to accept flow from diversion plus any other
contributing runoff. Sediment -laden runoff shall be routed through a sediment -trapping
device.
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F. Inspect temporary diversions once a week and after every rainfall event. Immediately
remove sediment from the flow area and repair the diversion ridge. Carefully check
outlets and make timely repairs as needed. When the area protected is permanently
stabilized, remove the ridge and the channel to blend with the natural ground level and
appropriately stabilize it. Inspect permanent diversions weekly and after every rainfall
event during construction operations until permanent vegetation is established. After
vegetation is established, inspect after major storms. Immediately remove any debris
and make repairs as needed in a timely manner. Maintain healthy vegetation at all
times.
3.07 TEMPORARY SLOPE DRAINS
A. Temporary slope drains shall be designed, installed and maintained in accordance with
the requirements of Section 6.32 of the NC ESCPDM. The Contractor shall provide
temporary slope drains with inlet and outlet protection and associated diversion channels
at all locations noted on the Contract Drawings, and at other locations as may be
directed by the Engineer.
B. Place slope drains on undisturbed soil or well compacted fill. Slightly slope the section
of pipe under the dike toward its outlet. Hand -tamp the soil under and around the
entrance section in lifts not to exceed 6 inches.
C. Ensure that all slope drain connections are watertight. Ensure that all fill material is well -
compacted. Securely fasten the exposed section of the drain with grommets or stakes
spaced no more than 10 feet apart. Extend the drain beyond the toe of the slope and
provide outlet protection.
D. Immediately stabilize all disturbed areas following construction.
E. Inspect the temporary slope drain, inlet and outlet protection, and supporting diversions
weekly and after every rainfall event and promptly make any necessary repairs. When
the protected area has been permanently stabilized, temporary measures may be
removed, materials disposed of properly, and all disturbed areas stabilized appropriately.
3.08 TEMPORARY GRAVEL CONSTRUCTION ENTRANCES/EXITS
A. Temporary gravel construction entrances/exits shall be designed, installed and
maintained in accordance with the requirements of Section 6.06 of the NC ESCPDM.
The Contractor shall provide temporary gravel construction entrances/exits at all
locations noted on the Contract Drawings and at all other locations as may be directed
by the Engineer.
B. Maintain the gravel pad as specified in Section 6.06 of the NC ESCPDM and in a
condition to prevent mud or sediment from leaving the construction site. This may
require periodic topdressing with 2 — 3 inch stone. Inspect each construction entrance at
least weekly and after each rainfall event and replace stone impaired by sediment as
necessary. Immediately remove all objectionable materials spilled, washed, or tracked
onto public roadways.
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C. If, despite the use of a gravel construction entrance/exit, most of the mud and sediment
are not removed from vehicle tires, tire washing may be necessary as detailed in Section
6.06 of the NC ESCPDM. If necessary this shall be done at no additional cost to the
Owner.
3.09 TEMPORARY AND PERMANENT STABILIZATION OF DISTURBED AREAS
A. The Contractor shall temporarily stabilize disturbed areas that will not be brought to final
grade within 14 calendar days unless as noted in 1.01 F. of this Section. Temporary
seeding shall be applied on areas that include diversions, dams, temporary sediment
basins, temporary road banks and topsoil stockpiles. Areas to be stabilized with
permanent vegetation must be seeded or planted within 14 working days after final
grade is reached, unless temporary stabilization is applied. Temporary seeding provides
protection for no more than 1 year, after which permanent stabilization should be
initiated.
B. Complete grading before preparing seedbeds, and install all necessary erosion control
measures. Minimize steep slopes. If soils become compacted during grading, loosen to
a depth of 6-8 inches.
C. Reseed and mulch temporary seeding areas where seedling emergence is poor, or
where erosion occurs, as soon as possible. Do not mow. Protect from traffic as much
as possible.
D. Refer to Section 6.10 of the NC ESCPDM for additional information and specifications
regarding seedbed requirements, plant selection, seeding and mulching for temporary
seeding applications.
E. The operation of equipment is restricted on slopes steeper than 3:1. Provisions for
vegetation establishment can be made during final grading. Vegetation chosen for these
sites must not require mowing or other intensive maintenance. Good mulching practices
are critical for protecting against erosion on steep slopes.
F. Generally, a stand of vegetation cannot be determined to be fully established until soil
cover has been maintained for one full year from planting. Inspect seeded areas for
failure and make necessary repairs and reseedings within the same season, if possible.
G. Reseeding — If a stand has inadequate cover, re-evaluate choice of plant materials and
quantities of lime and fertilizer. Re-establish the stand after seedbed preparation or
over -seed the stand. Consider seeding temporary, annual species if the time of year is
not appropriate for permanent seeding.
H. If vegetation fails to grow, soil must be tested to determine if acidity or nutrient
imbalance is responsible.
I. Fertilization - On the typical disturbed site, full establishment usually requires re -
fertilization in the second growing season. Fine turf requires annual maintenance
fertilization. Use soil tests if possible or follow the guidelines given for the specific
seeding mixture.
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Refer to Section 6.11 of the NC ESCPDM for additional information and specifications
regarding seedbed requirements, plant selection, seeding and mulching for permanent
seeding applications.
K. Refer to Section 6.12 of the NC ESCPDM for additional information and specifications
regarding soil preparation, sod selection, installation, and maintenance for sodding.
L. Inspect all seeded areas weekly and after heavy rains until permanent cover is
established. Inspect within 6 weeks of planting to see if stands are adequate. Fertilize,
reseed and mulch damaged and sparse areas immediately.
3.10 CHECK DAMS AND CHECK DAMS WITH WEIRS
A. Check dams shall be designed, installed and maintained in accordance with the
requirements of Section 6.83 of the NC ESCPDM. Check dams with weirs shall be
designed, installed and maintained in accordance with the requirements of Section 6.87
of the NC ESCPDM. The Contractor shall provide check dams or check dams with weirs
at all locations noted on the Contract Drawings and at all other locations as may be
directed by the Engineer.
B. Stone shall be placed on a filter fabric foundation. Center stone shall be at least 9
inches below natural ground level and stone shall extend 1.5 feet beyond ditch bank.
C. For check dams with weirs, provide an apron with a length 3 times the height of the dam
and a width a minimum of 4 feet. A 12-inch layer (minimum) of sediment control stone
shall be placed on the upstream side of the dam. Excavate sediment storage area to the
dimensions shown on the Contract Drawings.
D. Fiber filtration tubes and sediment logs may be specified for use as check dams. These
measures shall be installed according to instructions included herein. If Manufacturer's
recommendations are more stringent, they shall supersede.
E. Spacing shall be such that the elevation of the top of the lower dam is the same as the
toe elevation of the upper dam.
F. Check dams and check dams with weirs shall be inspected at least weekly and within 24
hours after any storm event of greater than '/2 inch of rain per 24-hour period. Sediment,
limbs and other debris shall be cleared from the channel. Repairs shall be made
immediately.
3.11 INLET EROSION CONTROL MEASURES
A. Inlet erosion control measures shall be designed, installed and maintained in
accordance with the applicable requirements of Sections 6.50 through 6.55 of the NC
ESCPDM. If inlet erosion control measures shown on the Contract Drawings are not
included in the NC ESCPDM, Engineer's and Manufacturer's instructions for design,
installation, and maintenance shall be followed, with more stringent instructions
superseding. The Contractor shall provide inlet erosion control measures at all locations
noted on the Contract Drawings, and at all other locations as may be directed by the
Engineer.
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B. Excavated drop inlet protection shall be installed and maintained in accordance with
Section 6.50 of the NC ESCPDM. Drainage area is limited to 1 acre. The minimum
volume of excavated area around the drop inlet is 1800 ft3/acre disturbed. Minimum
depth of the excavated area shall be 1 foot and maximum depth shall be 2 feet as
measured from the crest of the inlet structure. Weep holes shall be protected by gravel.
Inspect the excavated basin at least weekly and after every storm event until the
contributing drainage area has been permanently stabilized. Remove sediment when
the storage volume has been reduced by one-half.
C. Block and gravel inlet protection shall be installed and maintained in accordance with
Section 6.52 of the NC ESCPDM. Drainage area shall be limited to 1 acre unless site
conditions allow for frequent removal of accumulated sediment. The height of the block
barrier shall be no more than 12 inches and no less than 24 inches. On the bottom row,
place some of the blocks on their side to allow for dewatering. Place wire mesh over all
block openings to hold gravel in place. Lateral support may be provided by placement of
2 x 4 wood studs through block openings. Place gravel 2 inches below the top of the
block barrier. The top elevation of the structure must be at least 6 inches below the
ground elevation downslope from the inlet to ensure that all stormwater flows over the
structure and enters the storm drain instead of bypassing the structure. Block and
gravel inlet protection shall not be used near the edge of fill material and shall not divert
water away from the storm drain. Inspect at least weekly and after every storm event
until the contributing drainage area has been permanently stabilized. Remove sediment
as necessary to provide adequate storage volume for subsequent rains. Replace stone
as needed.
D. Rock pipe inlet protection shall be installed and maintained in accordance with Section
6.55 of the NC ESCPDM. Rock pipe inlet protection may be used at pipes with a
maximum diameter of 36 inches. It shall not be installed in intermittent or perennial
streams. The minimum crest width of the riprap berm shall be 3 feet, with a minimum
bottom width of 11 feet and minimum height of 2 feet. The top of the riprap shall be 1
foot lower than the shoulder of the embankment or diversions. The outside face of the
riprap should be covered with a 12-inch thick layer of #5 or #57 washed stone. The
sediment storage area should be excavated upstream of the rock pipe inlet protection,
with a minimum depth of 18 inches below grade. The rock pipe inlet protection shall be
inspected at least weekly and after any storm event of greater than '/2 inch of rain per 24-
hour period. Repairs shall be made immediately. Remove sediment when the volume
of the sediment storage area has been decreased by one-half and replace the
contaminated part of the gravel facing.
3.12 FIBER FILTRATION TUBES (FFTs) AND SEDIMENT LOGS
A. FFTs and sediment logs shall be placed along slopes to function as slope breaks and to
minimize sediment transport and in diversions/channels to serve as check dams. The
Contractor shall provide FFTs and sediment logs at all locations noted on the Contract
Drawings, and at all other locations as may be directed by the Engineer.
B. FFTs and sediment logs shall be installed to maintain contact with the soil surface.
Install prior to seeding. May be installed before or after installation of RECPs.
C. Anchor the upstream/upslope side of the FFTs using wire staples or approved devices at
1-foot intervals. Drive wooden stakes through downstream/downslope side of the FFTs
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at 2-foot intervals. Take care not to compress the FFTs. Backfill and compact loose soil
against the upstream/upslope side. Overlap adjacent FFT ends by a minimum of 1 foot.
D. For channel installation, construct anchor trench 3 inches deep by FFT diameter and
place loose soil against upstream side of FFT. For channel gradients of 2%, install
trenches on 25-foot intervals. Decrease interval distance with steeper channel gradients
or more highly erosive soils.
E. Any sediment accumulation at the base of the FFT must be removed when it reaches
one-third of the height of the tube. FFT may need to be removed if fully loaded with
captured sediment for maximum product performance. FFTs are to be left in place or
removed from the site as directed by the Engineer.
F. Sediment logs do not require installation trenches. Wood stakes shall be placed at least
every 2 feet along the length of the sediment log. Stakes shall only penetrate the netting
around the log. They shall not be driven through the center of the log. Sediment logs
are to be left in place or removed from the site as directed by the Engineer.
G. The FFTs and sediment logs shall be shall be inspected at least weekly and within 24
hours after any storm event of greater than '/2 inch of rain per 24-hour period. Look for
signs of flow undercutting the logs. Re -anchor and replace as necessary.
3.13 TEMPORARY AND PERMANENT CHANNELS
A. Temporary and permanent channels shall be designed, installed and maintained in
accordance with the requirements of Sections 6.30, 6.31 and 8.05 of the NC ESCPDM.
The Contractor shall provide temporary and/or permanent channels at all locations noted
on the Contract Drawings, and at all other locations as may be directed by the Engineer.
B. Remove all trees, brush, stumps, etc. from the channel area and dispose of properly.
C. Excavate the channel to the dimensions shown on the plans, over -excavating to allow
for liner thickness. Remove and properly dispose of all excess soil so that surface water
may enter the channel freely.
D. Armor the channel as specified on the Contract Drawings. If the specified channel lining
requires an establishment period, protect the channel with mulch or a temporary liner
sufficient to withstand anticipated velocities during this period.
E. During the establishment period, inspect channels weekly and after every rainfall. After
lining has been fully established, inspect channels after any storm event of greater than
'/2 inch of rain per 24-hour period. Immediately make repairs.
F. Perform all channel construction to keep erosion and water pollution to a minimum.
Immediately upon completion of the channel, vegetate all disturbed areas or otherwise
protect them against soil erosion. Where channel construction will take longer than 7
days, stabilize channels by reaches.
G. Inspect the channel outlet and all road crossings for bank stability and evidence of piping
or scour holes. Give special attention to outlets and points where concentrated flow
enters the channel.
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H. Maintain all vegetation adjacent to and in the channel in a healthy, vigorous condition to
protect the area from erosion.
Remove all significant sediment accumulations to maintain the designed carrying
capacity.
3.14 TEMPORARY SEDIMENT TRAPS, SEDIMENT BASINS, AND SKIMMER SEDIMENT
BASINS
A. Temporary sediment traps shall be designed, installed and maintained in accordance
with the requirements of Section 6.60 of the NC ESCPDM. Sediment basins shall be
designed, installed and maintained in accordance with the requirements of Section 6.61
of the NC ESCPDM. Skimmer sediment basins shall be designed, installed and
maintained in accordance with the requirements of Section 6.64 of the NC ESCPDM.
The Contractor shall provide these structures at all locations shown on the Contract
Drawings and at all other locations as may be directed by the Engineer.
B. Care shall be taken to ensure that proper site preparation operations are conducted prior
to trap or basin construction. Clear, grub and strip embankment location.
C. A cut-off trench shall be excavated along the center line of the earth fill embankment for
sediment basins and skimmer sediment basins. Keep the trench dry during backfilling
and compaction operations.
D. Fill material shall be free of roots, woody vegetation, rocks, and other objectionable
materials. Fill shall be placed in 6 to 8 inch layers and compacted. Construct the
embankment to an elevation 10 percent (minimum of 6 inches) higher than the design
height to allow for settling.
E. Inlets to the sediment traps and basins shall be constructed so as to prevent erosion.
Use diversions to divert sediment -laden water to the upper end of the basin.
F. Shape the sediment trap or basin to the specified dimensions.
G. Following construction of the embankment, clear the sediment trap or basin area below
the crest elevation of the spillway to facilitate sediment cleanout. Provide access for
cleanout of accumulated sediment.
H. Spillway/outlet configuration shall be constructed as specified below.
Temporary sediment trap
1. Construct riprap outlet in embankment. Use filter fabric or a keyway cutoff trench
between the riprap and the soil to protect it from piping. The outlet weir must be
level and constructed to grade to assure design capacity. Ensure that the stone
spillway outlet extends downstream past the toe of the embankment until the
outlet velocity is acceptable for the receiving stream.
2. Provide emergency bypass in natural, stable areas, located so that flow will not
damage the embankment.
32270-016102276:7-3-2018 02276-24 MALLARD CREEK REUSE

Sediment basin
Securely attach the riser to the barrel or barrel stub to make a watertight
structural connection. Secure all barrel connections with approved watertight
assemblies. Install anti -seep collar(s) as noted on the Contract Drawings.
Ensure that the pipe stays in firm contact with its foundation when compacting fill
around the pipe. Do not use pervious material as backfill around the pipe.
Anchor the riser to prevent floatation. Install trash guard to prevent the riser and
barrel from becoming clogged.
2. Install basin dewatering mechanism as noted on the Contract Drawings.
3. Install outlet protection as specified at principal spillway outlet. Install the
emergency spillway in undisturbed soil and provide stabilization as specified.
K. Skimmer sediment basin
Excavate a shallow pit under the skimmer or provide a low support of stone or
timber under the skimmer to prevent the skimming device from settling into the
mud.
2. Place the barrel on a firm, smooth foundation of impervious soil. Do not use
pervious material to backfill around the pipe. Ensure that the barrel stays in firm
contact with its foundation when compacting fill around the pipe.
3. Assemble the skimmer following the Manufacturer's instructions, or as designed.
4. Lay the assembled skimmer on the bottom of the basin with the flexible joint at
the inlet of the barrel pipe. Attach the flexible joint to the barrel pipe and position
the skimmer over the excavated pit or support. Attach a rope to the skimmer and
anchor it to the side of the basin so that the skimmer may be pulled to the side
for maintenance.
5. Install the spillway in undisturbed soil to the greatest extent possible and line with
laminated plastic or impermeable geotextile fabric. Anchor the edges of the
fabric in a trench with staples or pins. Install outlet protection as specified at the
principal spillway outlet.
L. Install porous baffles in temporary sediment traps, sediment basins, and skimmer
sediment basins as shown on the Contract Drawings and as specified herein. Porous
baffles shall be designed, installed and maintained in accordance with the requirements
of Section 6.65 of the NC ESCPDM. The Contractor shall provide porous baffles at all
locations noted on the Contract Drawings, and at all other locations as may be directed
by the Engineer.
1. Care shall be taken when installing porous baffles so they perform as designed.
Baffle material shall be secured at the bottom and sides of sediment trap or
basin. Fabric shall not be spliced but a continuous piece shall be used across
the trap or basin.
32270-016102276:7-3-2018 02276-25 MALLARD CREEK REUSE

2. Install at least three rows of baffles between the inlet and outlet discharge point.
Sediment traps and basins less than 20 feet in length may use 2 baffles.
3. Posts or saw horses shall be installed across the width of the sediment trap or
basin unless an alternate baffle configuration is shown on the Contract Drawings.
Steel posts shall be driven to a depth of 24 inches, spaced a maximum of 4 feet
apart. Baffle weirs shall be installed at locations and according to details on the
Contract Drawings. Except in locations of baffle weirs, the top of the fabric shall
be 6 inches higher than the invert of the spillway and 2 inches lower than the top
of the berms.
M. Sediment traps and basins shall be constructed so that the area disturbed and resulting
erosion is minimized. The emergency spillway, embankment, and all other disturbed
areas above the crest of the principal spillway are to be stabilized immediately after
construction.
N. Sediment traps and basins may attract children and should be considered dangerous.
Steep side slopes should be avoided and fences with warning signs may be necessary if
trespassing is likely.
O. Inspect temporary sediment traps, sediment basins, and skimmer sediment basins once
a week and within 24 hours after any storm event of greater than '/2 inch of rain per 24-
hour period. Repairs shall be made immediately.
Sediment, limbs and other debris shall be cleared and the trap or basin shall be
restored to its original dimensions when it accumulates to one-half the design
depth or more frequently as directed by the Engineer. Sediment material
removed from traps and basins shall be disposed of by the Contractor in
locations that will not result in off -site sedimentation as acceptable to the
Engineer, at no additional cost to the Owner. If no suitable on site locations are
available, all such sediment will be legally disposed of off site, at no additional
cost to the Owner.
2. The embankment, spillways and outlet shall be checked for erosion damage and
the embankment shall be checked for piping and settlement. Immediately fill any
settlement of the embankment to slightly above design grade. Any riprap
displaced from the spillway must be replaced immediately. Replace
contaminated gravel facing of riprap outlets as necessary. Inspect vegetation.
Reseed and re -mulch as necessary.
3. Baffles, fabric and skimmer shall be inspected for damage. Repairs shall be
made immediately. Re -anchor baffles if water is flowing under or around them.
4. Debris shall be removed from the skimmer to prevent clogging. Special
precautions shall be taken in winter to prevent the skimmer from plugging with
ice.
3.15 OUTLET STABILIZATION STRUCTURE
A. Outlet stabilization structures shall be designed, installed and maintained in accordance
with the requirements of Sections 6.41 and 8.06 of the NC ESCPDM.
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B. The Contractor shall ensure the subgrade, riprap and gravel filter conforms to the
grading limits shown on the plans.
C. Riprap shall be installed in accordance with the specifications contained herein, with
filter fabric placed under the riprap.
D. The apron shall be constructed on zero grade with no overfill. Ensure the apron is
properly aligned with the receiving stream.
E. All disturbed areas shall be stabilized with vegetation immediately after construction.
F. Outlet stabilization structures shall be inspected at least weekly and within 24 hours after
any storm event of greater than '/2 inch of rain per 24-hour period to see if any erosion
around or below the riprap has taken place or if stones have been dislodged. Repairs
shall be made immediately.
3.16 FLEXIBLE GROWTH MEDIUM
A. Flexible growth medium shall be applied and maintained in accordance with the
requirements detailed herein. If Manufacturer's recommendations are more stringent,
they shall supersede.
B. Grade area according to the Contract Drawings and prepare seedbed in accordance
with this Section and Section 2910 — Final Grading and Landscaping.
C. Apply flexible growth medium at rate noted on the Contract Drawings. Application may
be made either in conjunction with application of seed and fertilizer or following
application of seed and fertilizer. Slope interruption devices are recommended when
slope lengths exceed 100 feet. Traffic shall be kept off treated areas.
D. Areas treated with flexible growth medium shall be inspected at least weekly and within
24 hours after any storm event of greater than '/2 inch of rain per 24-hour period until
vegetation is established. Reapply in areas where seedling emergence is poor.
3.17 TREE PROTECTION FENCE
A. Tree protection fence shall be installed and maintained in accordance with the
requirements of Section 6.05 of the NC ESCPDM. If Manufacturer's recommendations
are more stringent, they shall supersede.
B. Install tree protection fence around all designated tree protection areas prior to clearing,
deliveries, and other construction activities onsite. Post signs designating area as
protected on all sides of the fencing.
C. Inspect tree protection fence weekly. Repair and replace as needed.
3.18 ADDITIONAL REQUIREMENTS
A. All storm sewer piping shall be blocked at the end of every working day until the inlet is
constructed above grade.
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B. All streets around the construction area shall be scraped as necessary to prevent
accumulation of dirt and debris.
C. The Contractor shall provide adequate means to prevent any sediment from entering
any storm drains, curb inlets (curb inlet filter box), ditches, streams, or bodies of water
downstream of any area disturbed by construction. Excavation materials shall be placed
upstream of any trench or other excavation to prevent sedimentation of offsite areas.
Silt fence will be provided, at no additional cost to the Owner, around excavation
materials if deemed necessary by the Engineer. In areas where a natural buffer area
exists between the work area and the closest stream or water course, this area shall not
be disturbed.
D. The Engineer may direct the Contractor to place any additional sediment and erosion
control devices at other locations not shown on the Drawings.
3.19 INSPECTIONS AND MAINTENANCE
A. The Contractor shall designate an Authorized Representative to perform inspections and
maintenance as described herein. Contractor shall perform regular inspections and
maintain records as follows:
Inspections shall be performed, at a minimum, once every seven calendar days
and within 24 hours after any storm event of greater than '/2 inch of rain per 24
hour period.
2. A rain gauge shall be maintained in good working order on the site and all rainfall
amounts recorded throughout the duration of construction activities.
3. Inspection reports must be available on -site during business hours unless a site -
specific exemption is approved.
4. Inspection records must be kept for 3 years following completion of construction
and be available upon request.
5. Electronically -available records may be substituted under certain conditions as
approved by Land Quality and DWQ.
B. During inspections the following will be observed and appropriate maintenance activities
shall be performed:
1. The conformance to specifications and current condition of all erosion and
sediment control structures.
2. The effectiveness and operational success of all erosion and sediment control
measures.
3. The presence of sediments or other pollutants in storm water runoff at all runoff
discharge points.
4. The presence of sediments or other pollutants in receiving waters.
32270-016102276:7-3-2018 02276-28 MALLARD CREEK REUSE

5. Evidence of off -site tracking at all locations where vehicles enter or exit the site.
6. Evidence of impacts to water quality due to site activities pertaining to equipment
operation and maintenance, material handling, and material storage and
construction laydown areas exposed to precipitation.
C. Immediate action shall be taken to repair/maintain erosion and sediment control
measures that are not performing as designed. The State reserves the right to stop all
construction activities not related to these measures until such deficiencies are repaired.
D. In areas that have undergone fina
maintenance by Contractor will occur
contract or project, whichever is longer.
3.20 MONITORING AND REPORTING
I stabilization, inspections and, if necessary,
at least once per month for the duration of the
A. Monitoring: The Contractor shall be responsible for the implementation of the
Inspections and Maintenance Procedures as included in the approved erosion and
sediment control plan. The implementation must comply with guidelines as set forth in
the NPDES General Permit NCG 010000 (Part I Section B: Minimum Monitoring and
Reporting Requirements), as well as those of any local regulatory authorities. Minimum
monitoring requirements are as follows:
A rain gauge shall be maintained in good working order on the site.
2. A written record of the daily rainfall amounts shall be retained. (Note: if no
rainfall occurred the Contractor must record "zero").
3. The control measures shall be inspected to ensure that they are operating
correctly. Inspection records must be maintained for each inspection event and
for each measure. All erosion and sedimentation control measures must be
inspected by the Contractor at least once every seven calendar days and within
24 hours after any storm event of greater than '/2 inch of rain per 24 hour period
unless otherwise noted herein. Some measures require inspection following
each rainfall event.
4. Once land disturbance has begun on the site, stormwater runoff discharge
outfalls shall be inspected by observation for erosion, sedimentation and other
stormwater discharge characteristics such as clarity, floating solids, and oil
sheens. Inspections of the outfalls shall be made at least once every seven
calendar days and within 24 hours after any storm event of greater than '/2 inch of
rain per 24 hour period. Inspection records must be maintained for each
inspection event and for each discharge location.
5. If any visible sedimentation is leaving the site or entering waters of the State,
corrective action shall be taken immediately to control the discharge of
sediments. Where visible deposition of sediment has occurred in surface
waters or wetlands, the Contractor must verbally contact the Engineer and
the Division of Water Quality within 24 hours of becoming aware of the
deposition. Written notification shall be made to the Engineer and the
32270-016102276:7-3-2018 02276-29 MALLARD CREEK REUSE

Division of Water Quality within 5 days of becoming aware of the
deposition.
B. Reporting: The Contractor must keep a record of inspections onsite with a copy of the
approved erosion and sediment control plan. Inspection records shall be made available
to DWQ or its authorized agent upon request. Copies of inspection records shall be sent
to the Engineer on a monthly basis. The records must provide the details of each
inspection including observations and corrective actions taken as described below. The
required rainfall and monitoring observations shall be recorded on an "Inspection Record
for Activities Under Stormwater General Permit NCG010000" form provided by DWQ or
a similar inspection form that is inclusive of all of the elements contained in the Division's
form. A sample inspection form can be found at the end of this Section.
Control Measure Inspections: Inspection records must include at a minimum: 1)
identification of the measures inspected, 2) date and time of the inspection, 3)
name of the person performing the inspection, 4) indication of whether the
measures were operating properly, 5) description of maintenance needs for the
measure, 6) corrective actions taken and 7) date of actions taken.
2. Stormwater Discharge Inspections: Inspection records must include at a
minimum: 1) identification of the discharge outfall inspected, 2) date and time of
the inspection, 3) name of the person performing the inspection, 4) evidence of
indicators of stormwater pollution such as oil sheen, floating or suspended solids
or discoloration, 5) indication of visible sediment leaving the site, 6) actions taken
to correct/prevent sedimentation and 7) date of actions taken.
3. Visible Sedimentation Found Outside the Site Limits: Inspection records must
include 1) an explanation as to the actions taken to control future releases, 2)
actions taken to clean up or stabilize the sediment that has left the site limits and
3) the date of actions taken.
4. Visible Sedimentation Found in Streams or Wetlands: All inspections should
include evaluation of streams or wetlands onsite or offsite (where accessible) to
determine if visible sedimentation has occurred.
5. Visible Stream Turbidity — If the discharge from a site results in visible stream
turbidity, inspection records must record that evidence and actions taken to
reduce sediment contributions.
C. The State reserves the right to use its own resources to duplicate monitoring and verify
the work required by the Contractor in this section.
The Sedimentation Pollution Control Act requires persons responsible for land -
disturbing activities to inspect a project after each phase of the project to make
sure that the approved erosion and sedimentation control plan is being followed.
2. The self -inspection program is separate from the weekly self -monitoring program
of the NPDES Stormwater Permit for Construction Activities. The focus of the
self -inspection report is the installation and maintenance of erosion and
sedimentation control measures according to the approved plan. The inspections
32270-016102276:7-3-2018 02276-30 MALLARD CREEK REUSE

should be conducted after each phase of the project, and continued until
permanent ground cover is established.
3. The Self -Inspection Report form may be found at the end of this section and is
also available as an Excel spreadsheet from the Land Quality web site,
http://www.dlr.enr.state.nc.us/gapes/sedimentation new.html
D. Sites discharging to streams named on the state's 303(d) list as impaired for sediment -
related causes may be required to perform additional monitoring, inspections or
application of more stringent management practices if it is determined that the additional
requirements are needed to assure compliance with the federal or state impaired -waters
conditions. Inspection records must be maintained for each inspection event and for
each discharge location. If a discharge covered by this permit enters a stream segment
that is listed on the Impaired Stream List for sediment -related causes, and a Total
Maximum Daily Load (TMDL) has been prepared for those pollutants, the Permittee
must implement measures to ensure that the discharge of pollutants from the site is
consistent with the assumptions and meets the requirements of the approved TMDL.
The DWQ 303(d) list can be found at: http://h2o.enr.state.nc.us/tmdI/General 303d.htm/.
3.21 REMOVAL OF TEMPORARY SEDIMENT CONTROL STRUCTURES
A. At such time that temporary erosion and sediment control structures are no longer
required under this item, the Contractor shall notify the Engineer of its intent and
schedule for the removal of the temporary structures. The Contractor shall obtain the
Engineer's approval in writing prior to removal. Once the Contractor has received such
written approval from the Engineer, the Contractor shall remove, as approved, the
temporary structures and all sediments accumulated at the removed structure shall be
returned upgrade and stabilized so they do not re -erode. In areas where temporary
control structures are removed, the site shall be left in a condition that will restore
original drainage. Such areas shall be evenly graded and seeded as specified in Section
02910 - Final Grading and Landscaping.
-- END OF SECTION —
(The Inspection Record for Activities under Stormwater General Permit NCG01000 and the
Land Quality Self -Inspection Report Form follows this Section.)
32270-016102276:7-3-2018 02276-31 MALLARD CREEK REUSE

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32270-016102276:7-3-2018 02276-35 MALLARD CREEK REUSE

SECTION 02910
FINAL GRADING, SEEDING AND LANDSCAPING
PART 1 -- GENERAL
1.01 THE REQUIREMENT
A. Furnish all labor, equipment, and materials necessary for final grading, topsoiling,
seeding, and miscellaneous site work not included under other Sections, but required to
complete the work as shown on the Drawings and specified herein. Under this Section,
all areas of the project site disturbed by excavation, materials storage, temporary roads,
etc., shall be reseeded as specified herein.
1.02 SUBMITTALS
A. Submit the following in accordance with Section 01300, Submittals.
1. Product Data
2. Certification of all materials
3. Three (3) copies vendor's statement for seed mixture required, stating botanical
and common name, place of origin, strain, percentage of purity, percentage of
germination, and amount of pure live seed (PLS) per bag.
1.03 PROJECT CONDITIONS
A. Verify amount of stockpiled topsoil and determine and provide additional topsoil as
required.
PART 2 -- PRODUCTS
2.01 CONTRACTOR'S RESPONSIBILITIES
A. Furnish and submit certification for the materials used as specified in the General
Conditions, Division 1 and Division 2.
2.02 TOPSOIL
A. Topsoil shall be defined as:
1. Original surface soil typical of a project area.
2. Existing stockpiled topsoil.
3. Capable of supporting native plant growth.
32270-016102910:7-3-2018 02910-1 MALLARD CREEK REUSE

B. Upon completion and approval of the rough grading, the Contractor shall place the
topsoil over all areas disturbed during construction under any contract except those
areas which will be paved, graveled or rip rapped. Topsoil shall be finish graded to
within 0.1 ft ± required elevations. Topsoil shall not be placed in a frozen or muddy
condition and shall contain no toxic materials harmful to grass growth.
2.03 GRASS SEED
A. The Contractor shall furnish the kinds and amounts of seed to be seeded in all areas
disturbed by the construction work. All seed shall be labeled to show that it meets the
requirements of the North Carolina Seed Law. All seed must have been tested within
six (6) months immediately preceding the planting of such material on the job.
B. The inoculant for treating legume seed shall be a pure culture of nitrogen -fixing bacteria
prepared specifically for the species. Inoculants shall not be used later than the date
indicated on the container. The quality of the seed shall conform to the following:
Minimum Minimum Maximum
Seed Purity Germination Weed Seed
Type (%) (%) (%)
Fescue (fungus free)
98
90
1.00
Hybrid Rye
98
85
0.10
Sudan grass
98
85
0.25
Millet
98
85
0.50
Sericea Lespedeza
Scarified
98
85
0.50
Unscarified
98
85
0.50
C. Scarified Lespedeza may contain 20% hard seed and unscarified 50% hard seed. Seed
containing prohibited noxious weed seed shall not be accepted. Seed shall be in
conformance with N.C. Seed Law restrictions for restricted noxious weeds.
D. Seed mixtures to be used on the project shall be as follows:
P - 150#/acre Kentucky 31 Tall Fescue (Alta Tall Fescue)
TW - 120#/acre Rye (Grain)
TS - 35#/acre Mix of Blue Wood Sedge, River Oats, Switch Grass, and
Korean Lespedza
TF - 120#/acre Rye (Grain)
Note: P — Permanent Seeding
TW — Temporary Winter Seeding
TS — Temporary Summer Seeding
TF — Temporary Fall Seeding
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Quantities of seed, lime, fertilizer, straw mulch, asphalt and top dressing shall be as
indicated in PART 3 of this Section and in the seeding schedule on the Drawings.
E. On cut and fill slopes 2:1 or steeper add 30#/acre of Sericea Lespedeza to the P seed
mixture. Sericea Lespedeza seed shall be scarified for spring plantings and unscarified
for fall plantings.
2.04 WATER
A. Water for irrigation shall be furnished to the Contractor by the Owner from existing
facilities as directed by the Engineer.
B. The Contractor shall furnish all hoses and connections necessary to complete the
landscaping work.
2.05 FERTILIZER
A. Fertilizer shall be a complete commercial fertilizer with components derived from
commercial sources. Fertilizer analysis shall be determined from field soil sampling in
appropriate number taken by the Contractor and analyzed by the N.C. Department of
Agriculture or other independent laboratory. Contractor shall furnish fertilizer in
accordance with the recommendations of the N.C. Department of Agriculture.
B. One -quarter of the Nitrogen shall be in the form of nitrates, one -quarter in the form of
ammonia salts, and one-half in the form of natural organic Nitrogen. Available
Phosphoric Acid shall be free from superphosphate, bone, or tankage. Potash shall be
Sulphate of Potash. Elements shall conform to the standards of Association of Official
Agricultural Chemists.
C. Fertilizer shall be delivered in standard size bags marked with the weight, analysis of
contents, and the name of the manufacturer. Fertilizer shall be stored in weatherproof
storage areas and in such a manner that its effectiveness will not be impaired.
2.06 LIME
A. At least 50% shall pass a No. 200 U.S.S. mesh sieve. At least 90% shall pass a No.
100 U.S.S. mesh sieve and 100% shall pass a No. 10 U.S.S. mesh sieve. Total
carbonates shall not be less than 80% or 44.8% Calcium Oxide equivalent. For the
purpose of calculation, total carbonates shall be considered as Calcium Carbonate.
2.07 WOOD CELLULOSE FIBER MULCH
A. For use in hydroseeding grass seed in combination with fertilizers and other approved
additions, shall consist of especially prepared wood cellulose fibers such as "Conwed",
"Silva -Fiber", or equal, and have no growth or germination inhibiting factors, and be
dyed green.
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B. The wood cellulose fiber shall have the additional characteristic of dispersing rapidly in
water to form a homogeneous slurry and remain in such state when agitated in the
hydraulic mulching unit, or adequate equal, with the specified materials.
C. When applied, the wood cellulose fiber with additives will form an absorptive mat but not
a plant inhibiting membrane, which will allow moisture, natural or mechanical, to
percolate into underlying soil.
D. The mulch shall be supplied, compressed in packages containing 50 pounds of material
having an equilibrium air dry moisture content at time of manufacture of 12% plus or
minus 2%. Wood cellulose fiber mulch shall be stored in a weatherproof storage area
and in such a manner that effectiveness will not be impaired.
2.08 STRAW MULCH
A. Straw used for mulch shall be small grain hay. Hay shall be undamaged, air dry,
threshed straw, free of undesirable weed seed. Straw mulch is not required for seeded
areas treated with a temporary soil stabilizer.
2.09 TEMPORARY SOIL STABILIZER
A. The temporary agent for soil erosion control shall consist of an especially prepared
highly concentrated powder which, when mixed with water, forms a thick liquid such as
"Enviroseal 2001" by Enviroseal Corporation, "Terra Control" by Quattro Environmental,
Inc., or "CHEM-CRETE ECO-110" by International CHEM-CRETE Corporation, and
having no growth or germination inhibiting factors. The agent shall be used for
hydroseeding grass seed in combination with other approved amendments resulting in a
highly viscous slurry which, when sprayed directly on the soil, forms a gelatinous crust.
2.10 DITCH EROSION RETENTION BLANKET
A. The blanket shall be as specified in Section 02276 - Erosion and Sedimentation Control.
2.11 RIPRAP AND HERBICIDES
A. Furnish and install sufficient quantity of landscape gravel or riprap to cover over the
ground to a minimum 4-inch depth for gravel and 24-inch depth for riprap, unless
otherwise noted, or indicated on the Drawings. Also furnish and apply an approved
herbicide to the subgrade surface just prior to installing the landscape gravel or riprap.
B. During placing, the stone shall be graded so that the smaller stones are uniformly
distributed through the mass. The Contractor may place the stone by mechanical
methods, augmented by hand placing where necessary or ordered by the Engineer.
The placed riprap shall form a properly graded, dense, neat layer of stone.
C. All topsoil and vegetative matter shall be removed from the subgrade surfaces prior to
the application of the weed killer (herbicide) and to the placement of landscape gravel or
riprap. Apply commercial -type herbicide as preemergence control of miscellaneous
grasses and broadleaf weeds in granular or liquid form such as "Treflan", "Dymid", or
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equal. Methods and rates of application shall be in strict compliance to manufacturer's
directions and acceptable to the Engineer.
D. The herbicide selected shall be safe for use around ornamental plantings, have
long-lasting weed control, and shall be resistant to leaching away under excessive
rainfall.
E. A second application of the herbicide shall be made on the surface of the landscape
gravel or riprap sometime after the first six (6) months, but not later than 12-months.
Same methods and rates apply as specified previously.
PART 3 -- EXECUTION
3.01 FINAL GRADING AND FINISHED GRADE ADJUSTMENTS
A. All areas disturbed during the course of the work shall be brought to the original grade
of the adjacent ground surfaces. The surface shall be graded smoothly with all stones
and debris removed. The Contractor shall provide all labor and materials necessary to
perform any adjustments in grade needed to obtain minimum cover.
B. Excess fill material from the project excavation may be used for grade adjustments
provided that it is free of rocks (over 2-inches in diameter), roots or other objectionable
materials. The fill material shall be spread evenly and properly compacted.
C. Final surface grading of the topsoiled, landscape graveled, and riprapped areas shall be
mechanically raked or hand raked to an even finished surface alignment.
3.02 TOPSOIL
A. Topsoil shall be spread in place for quantity required for lawn and road shoulder seed
areas at 4-inch consolidated depth, and sufficient quantity for certain plant beds and
backfill for shrubs and trees as specified. Topsoil shall be required for all grass areas
disturbed inside fenced parking lots.
3.03 SEEDBED PREPARATION
A. Chisel compacted areas and spread topsoil three (3) inches deep over adverse soil
conditions, with stockpiled topsoil. Contractor shall reserve sufficient topsoil for
seedbed preparation.
B. Rip the entire area to six (6) inch depth.
C. Topsoil shall be placed in areas to be seeded and roughened with tracked equipment or
other suitable measures. Slopes steeper than 3:1 may be roughened by grooving,
furrowing, tracking, or stairstep grading. Slopes flatter than 3:1 should be grooved by
disking, harrowing, raking, operating planting equipment on the contour.
D. Remove all loose rock, roots, and other obstructions leaving surface reasonably smooth
and uniform.
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E. Apply agricultural lime, fertilizer, and super -phosphate uniformly and mix with soil (see
below*).
F. Continue tillage until a well -pulverized, firm, reasonably uniform seedbed is prepared 4
to 6 inches deep.
G. Seed on a freshly prepared seedbed and cover seed lightly with seeding equipment or
cultipack after seeding.
H. Mulch immediately after seeding and anchor mulch.
Inspect all seeded areas and make necessary repairs or reseedings within the planting
season, if possible. If stand is less than 60% established, the entire area shall be
reseeded according to specifications using the original lime, fertilizer and seeding rates.
J. Consult a Conservation Inspector on maintenance treatment and fertilization after
permanent cover is established.
*Apply: Agricultural Limestone — 2 tons/acre (3 tons/acre in clay soils)
Fertilizer — 1,000 lb/acre — 10-10-10
Super -phosphate — 500 lb/acre — 20% analysis
Mulch — 2 tons/acre — small grain straw
Anchor —Asphalt Emulsion @ 300 gals/acre
3.04 HYDROSEEDING AND GRASS
A. The Contractor shall grow a stand of grass by hydroseeding method on all disturbed
areas. The Contractor shall be responsible for the satisfactory growth of grass
throughout the period of the one-year guarantee.
B. The Contractor's work shall include the preparation of the topsoil and bare soil seed
bed, application of fertilizer, limestone, mulching, inoculant, temporary soil stabilizer,
watering, and all other operations necessary to provide a satisfactory growth of sod at
the end of the one-year maintenance period. Areas without satisfactory sod at the end
of one (1) year shall be replanted until satisfactory growth is obtained and acceptable to
the Engineer.
C. All areas to be seeded shall be done by the hydraulic seeding method including all
additives and amendments required. A "Reinco", "Finn", or "Bowie" type hydromulcher
with adjustable nozzles and extension hoses, or equal, shall be utilized. General
capacity of tank should range from 500 to 2,500 gallons, or as approved by the
Engineer.
D. Hydraulic seeding shall be carried out in three steps. Step one shall consist of the
application of lime. In step two the seed mixture shall be mixed with the fertilizer, wood
cellulose fiber mulch, and any required inoculants and applied to the seed bed. Step
three shall consist of application of top dressing during the first spring or fall, whichever
comes first, after step two.
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E. Top dressing shall consist of a commercial grade fertilizer plus Nitrogen or other
analysis as may be recommended by soil testing. Types and application rates of seed
mixtures, lime, fertilizer, and wood cellulose fiber mulch, shall be as shown in the
Seeding Schedule.
F. Ingredients for the mixture and steps should be dumped into a tank of water and
thoroughly mixed to a homogeneous slurry and sprayed out under a minimum of
300-350 pounds pressure, in suitable proportions to accommodate the type and capacity
of the hydraulic machine to be used. Applications shall be evenly sprayed over the
ground surface. The Contractor shall free the topsoil of stones, roots, rubbish, and other
deleterious materials and dispose of same off the site. The bare soil, except existing
steep embankment area, shall be rough raked to remove stones, roots, and rubbish
over 4-inches in size, and other deleterious materials and dispose of same off the site.
G. No seeding should be undertaken in windy or unfavorable weather, when the ground is
too wet to rake easily, when it is in a frozen condition, or too dry. Any bare spots shown
in two to three weeks shall be recultivated, fertilized at half the rate, raked, seeded, and
mulched again by mechanical or hand broadcast method acceptable to the Engineer.
H. Areas that have been seeded with a temporary seed mixture shall be mowed to a height
of less than 2-inches and scarified prior to seeding with the permanent seed mixture.
The Contractor shall provide, at his own expense, protection for all seeded areas
against trespassing and damage at all times until acceptance of the work. Slopes shall
be protected from damage due to erosion, settlement, and other causes and shall be
repaired promptly at the Contractor's expense.
The Contractor shall water newly seeded areas of the lawn and road shoulder mix once
a week until the grasses have germinated sufficiently to produce a healthy turf, or unless
otherwise directed by the Engineer. Each watering shall provide three (3) gallons per
square yard. The Contractor shall furnish all necessary hoses, sprinklers, and
connections.
K. The first and second cutting of the lawn grasses only shall be done by the Contractor.
All subsequent cuttings will be done by the Owner's forces in a manner specified by the
Contractor.
3.05 DITCH AND SWALE EROSION PROTECTION
A. All ditches and swales indicated on the Drawings shall be lined with an erosion control
blanket of single width. The area to be covered shall be properly graded and
hydroseeded before the blanket is applied. Installation shall be in accordance with
Section 02276, Erosion and Sedimentation Control.
B. Special attention should be given to maintaining ditches/culverts at existing
driveway/cross drainage.
3.06 MAINTENANCE
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A. The Contractor shall be responsible for maintaining all seeded areas through the end of
his warranty period. Maintenance shall include but not be limited to, annual fertilization,
mowing, repair of seeded areas, irrigation, and weed control. The Contractor shall
provide, at his own expense, protection for all seeded areas against trespassing and
damage at all times until acceptance of the work. Slopes shall be protected from
damage due to erosion, settlement, and other causes and shall be repaired promptly at
the Contractor's expense.
B. Annual fertilization shall consist of an application of 500#/acre of 10-10-10 commercial
grade fertilizer, or its equivalent and 60#/acre of nitrogen in early fall, or other analysis
as may be determined by soil test. Annual fertilization shall be in addition to top
dressing and shall be performed by the Contractor each fall season after planting until
the work is substantially complete.
C. Mowing shall be scheduled so as to maintain a minimum stand height of 2-inches or as
directed by the Engineer.
D. All seeded areas shall be inspected on a regular basis and any necessary repairs or
reseedings made within the planting season, if possible. If the stand should be over
60% damaged, it shall be re-established following the original seeding
recommendations.
E. Weed growth shall be maintained mechanically and/or with herbicides. When chemicals
are used, the Contractor shall follow the current North Carolina Agricultural Experiment
Stations' weed control recommendations and adhere strictly to the instructions on the
label of the herbicide. No herbicide shall be used without prior approval of the Engineer.
F. Special attention shall be given to lawns, lawn -type areas, to establish a smooth,
uniform stand of grass, free of weeds, stones, or eroded/bare areas.
3.07 CLEANUP
A. The Contractor shall remove from the site all subsoil excavated from his work and all
other debris including, but not limited to, branches, paper, and rubbish in all landscape
areas, and remove temporary barricades as the work proceeds.
B. All areas shall be kept in a neat, orderly condition at all times. Prior to final acceptance,
the Contractor shall clean up the entire landscaped area to the satisfaction of the
Engineer.
3.08 REMOVAL OF TEMPORARY SEDIMENTATION CONTROL
A. After completion of project and a permanent stand of grass has been established and
approvals obtained from regulatory agencies, the Contractor shall remove all temporary
erosion control measures, such as but not limited to silt fences, stabilized outlets, stone
filters, check dams, construction entrances, etc., and restore the surfaces as required in
this section.
- END OF SECTION -
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SECTION 15000
BASIC MECHANICAL REQUIREMENTS
PART 1 -- GENERAL
1.01 THE REQUIREMENT
A. The Contractor shall furnish and install to the required line and grade, all piping together
with all fittings and appurtenances, required for a complete installation.
B. The Contractor shall furnish and install fittings, couplings, connections, sleeves,
adapters, harness rods and closure pieces as required to connect pipelines of dissimilar
materials and/or sizes herein included under this Section and other concurrent Contracts
for a complete installation.
C. The Contractor shall furnish all labor, materials, equipment, tools, and services required
for the furnishing, installation and testing of all piping as shown on the Drawings,
specified in this Section and required for the Work. Piping shall be furnished and
installed of the material, sizes, classes, and at the locations shown on the Drawings
and/or designated in this Section. Piping shall include all fittings, adapter pieces,
couplings, closure pieces, harnessing rods, hardware, bolts, gaskets, wall sleeves, wall
pipes, hangers, supports, joint accessories, and other associated appurtenances for
required connections to equipment, valves, or structures for a complete installation.
D. The Contractor shall provide taps on piping where required or shown on the Drawings.
Where pipe or fitting wall thicknesses are insufficient to provide the required number of
threads, a boss or pipe saddle shall be installed.
E. The work shall include, but not be limited to, the following:
1. Connections to existing pipelines.
2. Test excavations necessary to locate or verify existing pipe and appurtenances.
3. Installation of all new pipe and materials required for a complete installation.
4. Cleaning, testing and disinfecting as required.
1.02 RELATED WORK SPECIFIED ELSEWHERE
A. Division 1
B. Division 2
C. Division 9
D. Division 15
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1.03 MATERIAL CERTIFICATION AND SHOP DRAWINGS
A. The Contractor shall furnish to the OWNER (through the Engineer) a Material
Certification from the manufacturer stating that the pipe materials and specials furnished
under this Section conform to all applicable provisions of the corresponding
Specifications. Specifically, the Certification shall state compliance with the applicable
standards (ASTM, AWWA, etc.) for fabrication and testing. Certifications shall be
included in shop drawing submittal(s).
B. Shop Drawings for piping systems shall be prepared and submitted in accordance with
Section 01300 — Submittals. In addition to the requirements of Section 01300 —
Submittals, the Contractor shall submit laying schedules and detailed Drawings in plan
and profile for all piping as specified and shown on the Drawings.
C. Shop Drawings shall include, but not be limited to piping layout, pipe material, sizes,
class, locations, necessary dimensions, elevations, supports, pipe joints, and the details
of fittings including methods of joint restraint. No fabrication or installation shall begin
until Shop Drawings are approved by the Engineer.
D. Copies of manufacturers written directions regarding material handling, delivery, storage
and installation.
E. Shop Drawings shall include written verification of required pressure, leakage, and
disinfection test.
PART 2 -- PRODUCTS
2.01 GENERAL
A. All specials and every length of pipe shall be marked with the manufacturer's name or
trademark, size, class, and the date of manufacture. Special care in handling shall be
exercised during delivery, distribution, and storage of pipe to avoid damage and
unnecessary stresses. Damaged pipe will be rejected and shall be replaced at the
Contractor's expense. Pipe and specials stored prior to use shall be stored in such a
manner as to keep the interior free from dirt and foreign matter and protected from
direct sunlight for long periods of time when recommended by the manufacturer.
B. Testing of pipe before installation shall be as described in the corresponding ASTM or
AWWA Specifications and in the applicable standard specifications listed in the
following sections. Testing after the pipe is installed shall be as specified herein.
C. Joints in piping shall be of the type as specified in the applicable individual specification
section herein. Unless otherwise specified, all fasteners shall be Type 316 stainless
steel with anti -galling compound.
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D. All buried piping shall have restrained joints for thrust protection where shown on the
Drawings. All exposed piping shall have flanged joints, unless otherwise specified or
shown on the Drawings.
1. Restrained Joint Pipe:
a. Provide factory restrained joint piping for preventing movement of piping
caused by forces in or on buried piping tees, branches, plugs, and bends.
b. Install restrained joint piping as shown on Drawings.
c. Subject to compliance with the Contract Documents, the following
manufacturers are acceptable:
i. American Cast Iron Pipe (Flex -Ring or Lok-Ring).
ii. US Pipe (TR-Flex or HP-LOK).
iii. McWane Ductile.
d. Megalugs (by EBAA or equal) will be allowed only at field adjustments and
connections to valves, cast tees and existing piping where necessary. (Note
— all restrained joints must be fully extended inside casings).
E. The Drawings indicate work affecting existing piping and appurtenances. The
Contractor shall excavate test pits as required of all connections and crossings which
may affect the Contractor's work prior to ordering pipe and fittings to determine sufficient
information for ordering materials. The Contractor shall take whatever measurements
that are required to complete the work as shown or specified.
2.02 FLANGED ADAPTERS
A. Flanged adapters shall be furnished as required and as shown on the Drawings.
B. All flanged adapters, 12 inches in diameter and smaller, except as shown on the
Drawings or directed by the Engineer, shall be locking type flanged adapters.
C. Pressure and service shall be the same as connected piping.
D. Materials shall be cast iron for pipes up to 12 inch diameter and high strength steel for
pipes larger than 12 inch diameter.
E. Flanged adapters shall be shop primed with a premium quality primer compatible with
the paint system specified in Section 09900 — Painting. Field painting of wetted area
shall be done prior to installation.
F. Bolts and nuts shall be alloy steel, corrosion -resistant and prime coated.
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G. Flanged coupling adapters larger than 12 inches in diameter shall be harnessed by tying
the adapter to the nearest pipe joint flange using threaded rods and rod tabs. The
threaded rods and rod tabs shall be as shown on the Drawings.
H. Flanged adapters shall be as manufactured by Dresser Industries, Style 127 or 128,
Smith Blair Corporation, or equal.
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2.03 SOLID SLEEVE COUPLINGS
A. Solid sleeve couplings shall be used to connect buried service piping where shown on
the Drawings. Solid sleeves shall be ductile iron, long body and shall conform to the
requirements of ANSI A21.10 (AWWA C110). Unless otherwise shown or specified,
solid sleeve couplings shall be Style A11760 as manufactured by American Cast Iron
Pipe Co., or equal.
2.04 ACCESSORIES
A. Tracer Wire. Provide tracer wire over entire length of installed buried pipelines — refer to
Section 00350 (Special Provisions).
PART 3 -- EXECUTION
3.01 INSTALLATION
A. All piping shall be installed by skilled workmen and in accordance with the best standard
practice for piping installation as shown on the Drawings, specified or recommended by
the pipe manufacturer. Proper tools and appliances for the safe and convenient
handling and installing of the pipe and fittings shall be used. Great care shall be taken
to prevent any pipe coating from being damaged on the inside or outside of the pipe and
fittings. All pieces shall be carefully examined for defects, and no piece shall be
installed which is known to be cracked, damaged, or otherwise defective. If any
defective pieces should be discovered after having been installed, it shall be removed
and replaced with a sound one in a satisfactory manner by the Contractor and at his
own expense. Pipe and fittings shall be thoroughly cleaned before they are installed.
All piping shall be installed in such a manner that it will be free to expand and contract
without injury to itself or to structures and equipment to which it is connected. All piping
shall be erected to accurate lines and grades. All exposed piping shall be installed with
vertical and horizontal angles properly related to adjoining surfaces or pipes to give the
appearance of good workmanship.
B. No pressure testing shall be performed until the pipe has been properly backfilled in
place.
C. JOINT DEFLECTION SHALL NOT EXCEED 75 PERCENT OF THE
MANUFACTURERS RECOMMENDED DEFLECTION. Excavation and backfilling shall
conform to the requirements of Section 02220, and as specified herein. Maximum
trench widths shall conform to the Trench Width Excavation Limits shown on the
Drawings or as indicated in Section 02220.
D. Following proper preparation of the trench subgrade, pipe and fittings shall be carefully
lowered into the trench so as to prevent dirt and other foreign substances from gaining
entrance into the pipe and fittings. Inspect and clean each pipe length as required.
Proper facilities shall be provided for lowering sections of pipe into trenches. UNDER
NO CIRCUMSTANCES SHALL ANY OF THE MATERIALS BE DROPPED OR
DUMPED INTO THE TRENCH.
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E. Pipe that has the grade or joint disturbed after laying shall be taken up and relaid by the
Contractor at his own expense. Pipe shall not be laid in water or when trench conditions
are unsuitable for work. Water shall be kept out of the trench until jointing and
backfilling are completed. When work is not in progress, open ends of pipe, fittings, and
valves shall be securely closed so that no water, earth, or other substance will enter the
pipes, fittings, or valves. Pipe ends left for future connections shall be valved, plugged,
or capped, and anchored as required. All piping shall be installed in such a manner that
it will be free to expand and/or contract without injury to itself or to structures to which it
is connected. During the laying of pipe, each pipe manufacturer shall provide his own
supervisor to instruct the Contractor's pipe laying personnel in the correct procedure to
be followed.
F. Water shall be kept out of the trench until jointing and backfilling are completed. When
work is not in progress, open ends of pipe, fittings, and valves shall be securely closed
so that no water, earth, or other substance will enter the pipes, fitting, or valves. Pipe
ends left for future connections shall be valved, plugged, or capped, and anchored as
required. Upon installation of each joint into excavated trench, Contractor shall affix a
temporary HDPE/plastic cap which fits securely on the bell end until the next joint of pipe
is about to be connected. Due to the unavailability of adequate flushing water,
Contractor shall take the utmost care to ensure pipeline is as clean as possible during
installation.
G. All piping shall be installed in such a manner that it will be free to expand and/or contract
without injury to itself or to structures and equipment to which it is connected. All piping
shall be erected to accurate lines and grades with no abrupt changes in line or grade
and shall be supported and braced against movement, temporary, or permanent. Pipes
crossing within a vertical distance of less than or equal to one (1) foot shall be encased
and supported with concrete at the point of crossing to prevent damage to the adjacent
pipes as shown on the Drawings.
H. The full length of each section of pipe shall rest solidly upon the bed of the trench, with
recesses excavated to accommodate bells, couplings, joints, and fittings. Before joints
are made, each pipe shall be well bedded on a solid foundation; and no pipe shall be
brought into position until the preceding length has been thoroughly bedded and
secured in place. Pipe that has the grade or joint disturbed after laying shall be taken up
and relaid by the Contractor at his own expense. Pipe shall not be laid in water or when
trench conditions are unsuitable for work.
Proper and suitable tools and appliances for the safe convenient handling and laying of
pipe shall be used and shall in general agree with manufacturer's recommendations.
AT THE CLOSE OF EACH WORK DAY THE END OF THE PIPELINE SHALL BE
TIGHTLY SEALED WITH A FITTED PLUG SO THAT NO WATER, DIRT, OR OTHER
FOREIGN SUBSTANCE MAY ENTER THE PIPELINE, AND THIS PLUG SHALL BE
KEPT IN PLACE UNTIL PIPE LAYING IS RESUMED.
K. Ordinarily only full lengths of pipe (as furnished by the pipe manufacturer) shall be used.
Exceptions: (closure pieces at manholes and areas where joint deflection is required):
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The Contractor shall use a laser device to maintain the trench and pipe alignment. The
laser device shall be re -checked for correct elevation and pipe alignment prior to pipe
installation if the device is left in the pipe overnight. Corrected invert elevations at each
manhole and any adjustments will be coordinated with and approved by the Engineer.
M. ALL PIPING SHALL HAVE TYPE BEDDING AS SHOWN ON THE DRAWINGS
UNLESS OTHERWISE SPECIFIED HEREIN OR INDICATED ON THE DRAWINGS.
N. AT THE CLOSE OF WORK EACH DAY PIPELINE TRENCHES SHALL BE
COMPLETELY BACKFILLED. IN PAVED AREAS THE SURFACE SHALL BE
RESTORED AS SPECIFIED IN SECTION 02510, PAVING AND SURFACING, TO
ALLOW FOR TRAFFIC OVER THE TRENCH DURING NON -WORKING HOURS.
UNDER NO CONDITIONS SHALL ANY PIPELINE TRENCH BE LEFT OPEN DURING
NON -WORKING HOURS.
3.02 REINFORCED CONCRETE PIPE, CONCRETE CULVERT, AND DRAIN PIPE (RCP)
A. The laying of reinforced concrete pipe shall conform to the applicable sections of the
Concrete Pipe Handbook as published by the American Concrete Pipe Association.
3.03 DUCTILE IRON PIPE
A. Ductile iron pipe (DIP) shall be installed in accordance with the requirements of the
Ductile Iron Pipe Handbook published by the Ductile Iron Pipe Research Association,
and AWWA C600. DIP shall be furnished as specified in Section 15006, Ductile Iron
Pipe.
B. Where it is necessary to cut ductile iron pipe in the field, such cuts shall be made
carefully in a neat workmanlike manner using approved methods to produce a clean
square cut. The outside of the cut end shall be conditioned for use by filing or grinding a
small taper, at an angle of approximately 30 degrees.
C. UNLESS OTHERWISE APPROVED BY THE ENGINEER, FIELD WELDING OF
DUCTILE IRON WILL NOT BE PERMITTED.
D. Push -on joint pipe shall be installed in accordance with the Ductile Iron Pipe Installation
Guide published by the Ductile Iron Pipe Research Association (DIPRA). The gasket
shall be wiped clean, flexed and then placed in the socket. Any bulges in the gasket,
which might interfere with the entry of the plain end of the pipe shall be removed. A thin
film of lubricant shall be applied to the gasket surface, which will come into contact with
the spigot end of the pipe. The lubricant shall be furnished by the pipe manufacturer.
The plain end of the pipe, which is tapered for ease of assembly, shall be wiped clean
and a thick film of lubricant applied to the outside. The pipe shall be aligned and
carefully entered into the socket until it just makes contact with the gasket. The joint
assembly shall be completed by entering the pipe past the gasket until it makes contact
with the bottom of the socket. The pipe shall be pulled "home" with an approved jack
assembly as recommended by the pipe manufacturer. If assembly is not accomplished
by reasonable force, the plain end shall be removed and the condition corrected.
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E. Restrained joints shall be provided on all bends and on pipe joints as specified herein
and shown on the Drawings. Restrained joints shall be installed on both the upstream
and downstream side of each bend for the minimum linear distance shown or as
otherwise indicated on the Drawings. The linear distance shall be a minimum
requirement and all pipe sections within this linear distance shall be full standard lengths
of pipe unless otherwise noted. Restrained joints shall be made up similar to that for
push -on joints. Restrained pipe and fittings shall consist of either bolted retainer rings
and welded retainer bars or the boltless type which includes ductile iron locking
segments and rubber or neoprene retainers. Restrained plugs shall be installed as
shown on the Drawings and temporarily at the end of each work day. These plugs shall
be watertight and capable of withstanding the test pressure specified herein. Bolts for
restrained joints (if applicable) shall be as recommended by the manufacturer.
3.04 JOINTS IN PIPING
A. Restrained joints shall be provided on all pipe joints as specified herein and shown on
the Drawings. Restrained joints shall be made up similar to that for push -on joints.
B. Piping joints shall be as specified in individual pipe sections and shall conform to the
requirements on the Drawings. Push -on joints include a single rubber gasket which fits
into the bell end of the pipe. The gasket shall be wiped clean, flexed and then placed in
the socket. Any bulges in the gasket which might interfere with the entry of the plain
end of the pipe shall be removed. A thin film of lubricant shall be applied to the gasket
surface which will come into contact with the spigot end of the pipe. The lubricant shall
be furnished by the pipe manufacturer. The plain end of the pipe, which is tapered for
ease of assembly, shall be wiped clean and a thick film of lubricant applied to the
outside. The pipe shall be aligned and carefully entered into the socket until it just
makes contact with the gasket. The joint assembly shall be completed by entering the
pipe past the gasket until it makes contact with the bottom of the socket. The pipe shall
be pulled "home" with an approved jack assembly as recommended by the pipe
manufacturer. If assembly is not accomplished by reasonable force, the plain end shall
be removed and the condition corrected.
C. Flanged joints shall be brought to exact alignment and all gaskets and bolts or studs
inserted in their proper places. Bolts or studs shall be uniformly tightened around the
joints. Where stud bolts are used, the bolts shall be uniformly centered in the
connections and equal pressure applied to each nut on the stud. Pipes in all lines
subject to temperature changes shall be cut short and cold sprung into place to
compensate for expansion when hot.
D. Mechanical joints shall be made up with gaskets, glands and bolts. When a joint is to
be made up, the bell or socket and plain end shall be cleaned and washed with a
solution or mild soap in water; the gland and gasket shall be slid onto the plain end and
the end then entered into the socket until it is fully "home" on the centering ring. The
gasket shall then be painted with soapy water and slid into position, followed by the
gland. All bolts shall be inserted and made up hand tight and then tightened alternately
to bring the gland into position evenly. Excessive tightening of the bolts shall be
avoided. All nuts shall be pulled up using a torque wrench which will not permit unequal
stresses in the bolts. Torque shall not exceed the recommendations of the
manufacturer of the pipe and bolts for the various sizes. Care shall be taken to assure
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that the pipe remains fully "home" while the joint is being made. Joints shall conform to
the applicable AWWA Specifications.
3.05 FILLING AND TESTING
A. The Contractor shall receive from Owner reasonable quantities of water for all filling and
testing. The Contractor shall furnish and install all means and apparatus necessary for
getting the water into the pipe and filling and testing; including pumps, gages, and
meters, any necessary plugs and caps, and any temporary blow off piping required to
discharge water, etc., complete with any necessary reaction blocking to prevent pipe
movement during the filling and testing. All pipe shall be tested in such lengths or
sections as agreed upon among the Owner, Engineer, and Contractor. The Contractor
shall give the Owner and Engineer reasonable notice of the time when he intends to test
portions of the pipe. The Engineer reserves the right, within reason, to request testing
of any section or portion of the pipe. ONLY POTABLE WATER SHALL BE USED FOR
TESTING POTABLE WATER SYSTEMS.
B. Force Mains
Pressure and Leakage Tests - After flushing, all pipelines shall be hydrostatically
tested for leakage at the test pressure indicated in the Piping System Schedule
(refer to Section 15390). Each pipeline shall be filled with water for a period of
no less than 24 hours and then subjected to the specified test pressure for two
(2) hours. The Contractor shall ensure that the pipe is full of water and that the
air has been removed before testing. During this test, the rate of leakage for
buried pipe shall not exceed the allowable rate as specified by AWWA C600.
Exposed pipe shall show no leakage. The procedure used for the hydrostatic test
shall be in accordance with the requirements of AWWA C600 as modified
herein. The Contractor shall take all necessary precautions to prevent any joints
from drawing while the pipe or its appurtenances are being tested. Any leaks or
defective pipe disclosed by the hydrostatic test shall be repaired or replaced by
the Contractor, at his own expense, and the test repeated until all such piping
shows tight.
2 Cost of Testing and Repairs - Any and all work necessary to bring the pipe into
conformance with the leakage specifications shall be performed by the
Contractor at no extra cost to the Owner. All apparent sources of leakage shall
be repaired in a manner approved by the Engineer.
3.06 DEFLECTION TEST
A. No sooner than thirty (30) days after final backfill installation, each section of PVC pipe
shall be checked for vertical deflection using an electronic deflecto-meter or a rigid "Go -
No -Go" device. Vertical deflection shall not exceed five (5) percent of the inside pipe
diameter for PVC pipe.
B. Where the actual deflection exceeds the allowable, the Contractor shall discover the
cause and correct it before the pipe will be acceptable. For the purpose of this
subsection, a section of sewer is defined as that length of sewer between successive
manholes or special structures or stubouts for future connections.
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3.07 PRESSURE TESTING (FORCE MAINS)
The Contractor shall pressure test all pipe in accordance with the Piping System Schedule of
these Specifications (Section 15390). All pressure testing of pipe shall be limited to the distance
between isolation valves or manholes as shown on the Drawings at any one time, unless
otherwise approved, in writing, by the Engineer. Certified test gauges shall be furnished by the
Contractor for testing. Contractor shall provide temporary plugs and caps as need to test
isolated sections of pipeline when necessary.
3.08 DISINFECTION OF POTABLE WATER MAINS/LINES
A. All pipe and fitting connected to and forming a part of a potable water supply shall be
disinfected in accordance with the procedures described in AWWA C 651. Disinfection
shall also be in accordance with the requirements of the North Carolina Division of
Environmental Health and the Owner.
B. Disinfection shall be accomplished after the pipe has been flushed, if applicable, and
passed the hydrostatic test. Such piping shall be filled with 50 parts per million (PPM) of
chlorine and held in contact for not less than 24 hours. Final tests after 24 hours contact
time shall show a minimum residual chlorine content of 10 ppm in all parts of the
system. Disinfection shall be repeated as often as necessary, and as directed by the
Engineer and/or NCDEH and/or the Owner until the minimum residual chlorine content
of 10 ppm has been reached. The Contractor shall obtain certificates of satisfactory
bacteriological tests and furnish them to the Owner before the request is made for
acceptance of the work. The Contractor shall furnish and install, at his own expense, all
means and apparatus necessary for performing the disinfection. The chlorine solution
shall be thoroughly flushed out prior to placing the new sections of pipe in service. The
Contractor is cautioned that the spent chlorine solution must be disposed of in such a
way as not to be detrimental to animal, plant, or fish life. Chlorine residual tests will be
made after flushing to assure that residual is not in excess of 1 ppm at any point in
system.
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SECTION 15006
DUCTILE IRON PIPE
PART 1 -- GENERAL
1.01 THE REQUIREMENT
A. All ductile iron pipe and specials shall be marked with the manufacturer's name or
trademark, size, weight, thickness class, the date of manufacture, and the word
"Ductile".
B. Ductile iron pipe (DIP) of the sizes shown or specified shall conform to ANSI A21.51
(AWWA C151), Grade 60-42-10 for ductile iron pipe centrifugally cast in metal molds or
sand -lined molds. All ductile iron pipe shall conform to ANSI A21.50 (AWWA C150) for
thickness design and shall be supplied in 18 or 20 foot nominal lengths or as required to
meet the requirements of the Drawings. Fittings and specials shall be cast iron or
ductile iron, conforming to the requirements of ANSI A21.10 (AWWA C110) or ANSI
A21.53 (AWWA C153) and shall have a minimum rated working pressure of 250 psi.
C. Reference Sections 15000 and 15390.
D. Ductile iron pipe is required as shown on the Drawings. All ductile iron piping shall be
provided with cement mortar lining except for locations where a ceramic epoxy lining
(P401) is indicated on the Drawings.
1.02 SUBMITTALS
A. Shop Drawings
1. Refer to Sections Section 01300 and 15000.
2. Certification of factory hydrostatic testing.
3. Layout drawings and/or schedule.
4. Manufacturer's product data with sizes and classes indicated.
PART 2 -- PRODUCT
2.01 ACCEPTABLE MANUFACTURERS
A. DIP manufacturers requirements:
1. The manufacturer shall have a minimum of five (5) years experience successfully
manufacturing and furnishing all sizes of pipe fittings and joint types involved on
this project.
2. The pipe manufacturer shall provide both the pipe and fittings.
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3. All pipe, restraining devices, and accessories specified in this section shall be
manufactured in the United States of America. Foreign fittings manufactured by
Sigma Corporation or Star Pipe Products may be used for pipe fittings 24-inches
and smaller.
B. Subject to compliance with the Contract Documents the following manufacturers are
acceptable:
1. Ductile Iron Pipe
a. American Cast Iron Pipe
b. US Pipe
c. McWane Ductile
2.02 DUCTILE IRON PIPE AND FITTINGS
A. Interior Linings
1. Force mains and fittings shall be cement mortar lined except where ceramic
epoxy lining is shown on the Drawings. Cement mortar lining shall conform to
American Standard Specifications for Cement Mortar Lining for Cast Iron Pipe
and Ductile Iron Pipe and Fittings, ANSI A21.4 (AWWA C104) and shall be
standard thickness. The mortar lining shall be protected with the bituminous seal
coat. Prior to installation, no pipe shall have cracks in cement mortar lining
exceeding 0.016 inches.
2. Where indicated on the Drawings, the force main and fittings shall be provided
with ceramic epoxy lining as manufactured by either Induron (Protecto 401),
Permite Corporation (Permox — CTF), or approved equal. The material shall be
an amine cured novalac epoxy containing at least 20% by volume of ceramic
quartz pigment.
The lining shall be applied by a certified firm with a successful history of applying
linings to the interior of ductile iron pipe and fittings. The ceramic epoxy lining
shall cover the inner surface of the pipe as follows:
a. Coating of bell sockets and spigot ends require the gasket area and
spigot ends up to 6 inches back from the end of the spigot end must be
coated with 6 mils nominal, 10 mils maximum using Protecto Joint
Compound.
b. The Joint Compound shall be applied by brush to ensure coverage. Care
should be taken that the Joint Compound is smooth without excess
buildup in the gasket seat or on the spigot ends.
C. Coating of the gasket seat and spigot ends shall be done after the
application of the lining. The lining shall extend from the spigot end
through the socket to the edge of the gasket sealing area.
d. The lining in fittings shall cover the interior surfaces including the socket
areas as defined above.
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e. The lining in pipe and fittings shall be 40 mils nominal thickness.
f. Repair procedures for damaged ceramic epoxy lining shall be made with
Protecto Joint Compound in strict accordance with the manufacturer's
recommendations.
g. Any request for substitution must be accompanied by a successful history
of lining pipe and fittings for water service, a test report verifying the
following properties, and a certification of the test results.
i. A permeability rating of 0.00 when tested according to Method A
of ASTM E-96-66, Procedure A with a test duration of 30 days.
ii. The following test must be run on coupons from factory lined ductile
iron pipe:
o ASTM B-117 Salt Spray (scribed panel) — Results to equal
0.00 undercutting after two years.
o ASTM G-95 Cathodic Disbondment 1.5 volts @ 77°F.
Results to equal no more than 0.5 mm undercutting after
30 days.
o Immersion Testing rated using ASTM D-714.87.
- 20% Sulfuric Acid — No effect after two years.
- 140°F 25% Sodium Hydroxide — No effect after two
years.
- 160°F Distilled Water — No effect after two years.
- 120°F Tap Water (scribed panel)
- 0.0 undercutting after two years with no effect.
o An abrasion resistance of no more than 3 mils (.075mm)
loss after one million cycles using European Standard EN
598: 1994 Section 7.8 Abrasion Resistance.
B. Exterior Coatings
1. All pipe and fittings shall have a bituminous coating on the exterior surface in
accordance with ANSI A21.15 (AWWA C151).
2. Where shown on the Drawings pipe and fittings shall be wrapped with either V-
Bio polyethylene encasement (Polywrap) containing anti -microbial biocide, VB3
Polywrap manufactured by AA Threadseal, or approved equal. Polyethylene
encasement shall conform to ANSI/AWWA C105/A21.5. Polyethylene
encasement shall be provided in tube rolls, accordion bundles or sheets, and
shall be manufactured of virgin polyethylene material conforming to ASTM A674.
Polywrap shall consist of three layers of co -extruded linear low density
polyethylene (LLDP) film. The specified nominal thickness is 0.008 in. (8 mils).
Joints in the polyethylene encasement shall be taped. Installation of
polyethylene encasement shall conform to ANSI/AWWA C105/A21.5 and
DIPRA's "Polyethylene Encasement" brochure.
3. All exposed piping shall be painted in accordance with Section 09900.
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C. Pipe and fittings shall be the class that equals or exceeds the pipe class as specified in
Section 15390. Requirements for various types of joints are described in the following
paragraphs. UNLESS OTHERWISE NOTED HEREIN OR ON THE DRAWINGS, ALL
EXPOSED DUCTILE IRON PIPING SHALL HAVE FLANGED JOINTS.
D. Push -On Joint — Push -on joint includes a single rubber gasket which fits into the bell end
of the pipe. The gasket shall be wiped clean, flexed, and then placed in the socket. Any
bulges in the gasket which might interfere with the entry of the plain end of the pipe shall
be removed. A thin film of lubricant shall be applied to the gasket surface which will
come into contact with the spigot end of the pipe. The lubricant shall be furnished by
the pipe manufacturer.
The plain end of the pipe, which is tapered for ease of assembly, shall be wiped clean
and a thick film of lubricant applied to the outside. The pipe shall be aligned and
carefully entered into the socket until it just makes contact with the gasket. The joint
assembly shall be completed by entering the pipe past the gasket until it makes contact
with the bottom of the socket. The pipe shall be pulled "home" with an approved jack
assembly as recommended by the pipe manufacturer. If assembly is not accomplished
by reasonable force, the plain end shall be removed and the condition corrected.
All joints and joint accessories shall conform to the requirements of ANSI A21.11
(AWWA C111).
E. Gaskets shall be the "Ring Gasket" type, 1/8-inch minimum thickness, cloth inserted
rubber, red rubber or neoprene and shall be suitable for the service intended. Gaskets
for restrained joint pipe shall be color pigmented -black colorization is not acceptable.
Gaskets for glass lined pipe shall be TORUSEAL flange gasket, or equal. Bolts shall be
of the size and length called for and in accordance with the "American Standard" and
comply with the requirements of the ANSI/AWWA Standards. The bolts for flanged
joints shall be a minimum ASTM A307; Grade B carbon steel and be in accordance with
ANSI A21.10, (AWWA C110). The bolts shall have hexagonal heads and nuts, no
washers shall be used.
F. Bell and spigot pipe shall be provided with push on, O-ring rubber gasket, compression
type joints and shall conform to the requirements of ANSI A21.11 (AWWA C111).
Fittings and specials shall be supplied with mechanical joints as specified for mechanical
joint pipe. If required by installation conditions, pipe shall have cast -on lugs for
adequately tying it together.
G. Mechanical joints and fittings shall conform to the requirements of ANSI A21.11,
(AWWA C111). Joints shall be made employing a tapered rubber gasket forced into a
tapered groove with a ductile iron follower ring. If required by installation conditions,
pipe and fittings shall have cast -on lugs for adequately tying the pipe and fittings
together. These shall be in conformance with standard practice and as outlined under
the appropriate AWWA Specifications.
H. Bolts for mechanical joints shall be high strength corrosion resistant low -alloy steel tee -
head bolts with hexagonal nuts.
I. Mechanical coupling joint pipe and fittings shall be split type, shouldered end. Coupling
materials shall be malleable iron. Couplings shall have a minimum pressure rating and
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service equal to that of the connected piping. Gaskets shall be of rubber. Bolts and
nuts shall be heat treated carbon steel track bolts and shall be plated. After installation,
buried couplings shall receive two heavy coats of coal tar epoxy (min. 24 mil thickness)
which is compatible with the finish of the couplings. Couplings shall be as manufactured
by Victaulic Company of America Style 44, or equal.
Restrained joint pipe and fittings shall consist of bolted retainer rings, ductile iron locking
segments held in place by rubber retainers, or ductile iron retaining rings that lock over
the bell of the joint and are secured to prevent rotation, and factory welded retainer
beads or rings on the spigot of the pipe. All components of the bolted or snap ring
assemblies shall be constructed of corrosion -resistant, high strength, low -alloy steel.
Restrained pipe and fittings shall be Flex -Ring or Lok-Ring type joints as manufactured
by American Cast Iron Pipe Company, TR Flex or HP-LOK as manufactured by US
Pipe, or equivalent systems as manufactured by McWane Ductile. No field fabrication
of push -on or other type pipe joints to furnish restrained joints shall be allowed unless
specifically approved by the Engineer. Special gripping gaskets in lieu of welded ring -
type restrained joints shall not be permitted on this project.
L. Bolted Mechanical Joints
Mechanical joints shall be made up with gaskets, glands and bolts. When a joint
is to be made up, the bell or socket and plain end shall be cleaned and washed
with a solution or mild soap in water; the gland and gasket shall be slid onto the
plain end and the end then entered into the socket until it is fully "home" on the
centering ring. The gasket shall then be painted with soapy water and slid into
position, followed by the gland. All bolts shall be inserted and made up hand
tight and then tightened alternately to bring the gland into position evenly.
2. Excessive tightening of the bolts shall be avoided and torsion wrenches shall be
used if needed to prevent excessive tightening. Care shall be taken to assure
that the pipe remains fully "home" while the joint is being made up.
3. Gaskets for all mechanical joints, including valves and fittings, shall be an
approved rubber gasket conforming to the requirements of ANSI A21.11 (AWWA
C111).
4. Bolts for mechanical joints shall be carbon steel minimum ASTM A307 Grade B,
tee -bolts with hexagonal nuts conforming to ANSI B18.2.
N. Solid Sleeve Couplings shall be used to connect ductile iron piping to ductile iron piping
for buried service where shown on the Drawings. Solid sleeves shall be ductile iron and
conform to the requirements of ANSI A21.10 (AWWA C110). Solid sleeve couplings
shall be Style A11760 as manufactured by American Cast Iron Pipe Co., or equal.
O. The above systems for thrust restraint shall be used where restrained joint ductile iron
pipe is indicated on the Drawings. Lengths indicated for restraint shall be minimum
lengths between restrained joints. Thrust restraint and harnessing systems such as
thrust blocks, threaded -rods, friction clamps, retainer glands, and other proprietary
systems such as the Star Harnessing System, Mega Lug by EBAA Iron, etc. shall not be
used unless specifically allowed by the Engineer in isolated applications such as
connections to existing piping, or walls, etc. Where threaded -rods are allowed, the rods
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and tabs shall be designed for the specified restraint system design pressure, shall have
lengths less than 10 feet between fittings, and shall be painted with two heavy coats of
coal tar epoxy after installation.
P. FLANGED JOINTS AND FITTINGS: Flanged joints and fittings shall have a minimum
pressure rating of 250 psi with 125 lb. Standard flanges. All flanges and fittings shall
conform to the requirements of ANSI B16.1. Flanges shall be ductile iron and shall be
of the threaded or screw on type. The face of the flanges shall be machined after
installation of the flange to the pipe. No raised surface shall be allowed on flanges.
Flanged pipe shall conform to the requirements of ANSI Specification A21.15, (AWWA
C115). Plain end and flange shall be faced to insure that the flange is perpendicular to
the pipe axis and the pipe/flange interface is flush. Pipe barrels and flanges shall have
a taper pipe thread (NPT) in accordance with ANSI 131.20.1 with thread diameters
adapted to Ductile Iron pipe standard outside diameters. Flanges shall be free to pits,
gouges, rust, debris, oil and grease. Surface finish shall be no greater than 250 RMS.
Refinish flange faces if corrective measures do not meet the foregoing. Check flange
and bolt hole spot facings for burrs, etc. and clear from facings. Pipe lengths shall be
fabricated to meet the requirements of the Drawings. All flanged pipe shall be minimum
Class 53. Align flanges so they are concentric and parallel and install gasket carefully.
Use no lubricant, grease or adhesives on either the gasket or flange faces. Connect
flanges per the Pipeline Seal and Insulator Inc. guidelines.
2.02 SOURCE QUALITY CONTROL
A. Factory Test:
Subject pipe to factory hydrostatic test of not less than 500 psi for minimum 10
seconds.
PART 3 -- EXECUTION
3.01 INSTALLATION
A. Joining Method — Push -On Mechanical (Gland -Type) Joints:
1. Install in accordance with AWWA C111.
2. Assemble mechanical joints carefully according to manufacturer's
recommendations.
3. If effective sealing is not obtained, disassemble, thoroughly clean, and
reassemble the joint.
4. Do not overstress bolts.
5. Where piping utilizes mechanical joints with tie rods, align joint holes to permit
installation of harness bolts.
B. Joining Method — Push -On Joints:
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1. Install in accordance with AWWA C115.
2. Assemble push -on joints in accordance with manufacturer's directions.
3. Bevel and lubricate spigot end of pipe to facilitate assembly without damage to
gasket. Use lubricant that is non -toxic, does not support the growth of bacteria,
has no deteriorating effects on the gasket material, and imparts no taste or odor
to water in pipe.
4. Assure the gasket groove is thoroughly clean.
5. For cold weather installation, warm gasket prior to placement in bell.
6. Taper of bevel shall be approximately 30 degrees with centerline of pipe and
approximately 1/4 IN back.
D. Cutting:
1. Do not damage interior lining material during cutting.
2. Use abrasive wheel cutters or saws.
3. Make square cuts.
4. Bevel and free cut ends of sharp edges after cutting.
E. Support exposed pipe in accordance with Section 15000.
F. Install buried piping in accordance with Section 15000.
G. Install restrained joint systems where specified.
3.02 FIELD QUALITY CONTROL
A. Test piping systems in accordance with Section 15000.
- END OF SECTION -
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SECTION 15030
PIPING AND EQUIPMENT IDENTIFICATION SYSTEMS
PART 1 -- GENERAL
1.01 THE REQUIREMENT
A. The Contractor shall furnish and install all components of the system for identification of
piping and equipment as specified hereinafter. The system shall include the application
of color coding to all new and altered plant piping. The Contractor shall paint the
equipment and piping of all Contracts in the colors as selected by the Owner or
Engineer during construction and in accordance with the requirements of Section 09900,
Painting.
B. Identification legends and arrows shall be provided as required to fully and adequately
identify piping at no additional cost to the Owner. Signage may be requested near
completion of the work and shall be limited to no more than five (5) signs for each
service specified in 15390, Schedules.
C. The Contractor shall submit a schedule of the colors and designations proposed in
accordance with Section 01300, Submittals. A minimum of four (4) color charts shall be
included with the Submittal.
D. Reference Section 15000, Basic Mechanical Requirements.
PART 2 -- PRODUCTS
2.01 RECLAIMED WATER PIPING
A. All buried and exposed reclaimed water piping and appurtenances shall be color -coded,
taped, or otherwise marked to identify the source of water as being reclaimed water
(RCW) in accordance with 15A of the North Carolina Administrative Code, Subchapter
02U - Reclaimed Water, Section .0403 Design Criteria for Distribution Lines.
B. All exposed ductile iron reclaimed water piping and appurtenance shall be painted
purple (Pantone 522) in accordance with Section 09900, Painting, and embossed or
integrally stamped or marked "CAUTION: RECLAIMED WATER - DO NOT DRINK."
The warning shall be stamped on opposite sides of the pipe and repeated every 3 feet
or less.
C. All buried ductile iron reclaimed water piping and appurtenances shall be installed with a
purple (Pantone 522) polyethylene vinyl wrap integrally stamped or marked "CAUTION:
RECLAIMED WATER - DO NOT DRINK." The warning shall be indicated on opposite
sides of the pipe and repeated every 3 feet or less.
D. All buried and exposed PVC reclaimed water piping and appurtenances shall be color
coded purple (Pantone 522), and embossed or integrally stamped or marked
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"CAUTION: RECLAIMED WATER - DO NOT DRINK." The warning shall be stamped
on opposite sides of the pipe and repeated every 3 feet or less.
E. All other buried and exposed reclaimed water piping and appurtenances shall be
installed with a purple (Pantone 522) identification tape. Identification tape shall be at
least 3 inches wide and have white or black lettering on purple (Pantone 522) field
stating "CAUTION: RECLAIMED WATER - DO NOT DRINK." Identification tape shall
be installed on top of pipe, fastened at least every 10 feet to each pipe length, and run
continuously the entire length of the pipe.
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SECTION 15390
SCHEDULES
PART 1 -- GENERAL
1.01 THE REQUIREMENT
A. Reference Sections 15000, and 15006.
1.02 PIPING SYSTEM SCHEDULES
A. Piping requirements for this Section are outlined in the Piping System Schedule.
Contractor shall prepare and submit, prior to pipe installation, pipe layout drawings
indicating pipe type and size, laying lengths, joint types, bends and bend types, joint
deflections, valves, manholes, blow -offs, etc. The Piping System Schedule herein lists
materials for the types and sizes indicated on the Contract Drawings.
B. If the pipe material is not shown on the Piping Schedule or otherwise specified, the
following materials shall be used:
Pipe Size Material
>A'5 Ductile Iron
Type of Joint
Flanged (Exposed)
Restrained (Buried)
Class/Design
CL 53
CL 350
200 psi
<4" PVC Socket Sch 80 200 psi
(1) Test at 150 percent of normal operating pressure or 10 psi, whichever is greater.
Piping System Schedule
RESTRAINT
PIPE
MATERIAL
TYPE OF JOINT
CLASS/DESIGN
SYSTEM
TEST
IDENTIFICATION
DESIGN
PRESSURE
PRESSURE
4" - 36" WATER MAIN
DUCTILE IRON
FLANGED
PRESSURE CL 350
200 PSI
200 PSI
PUSH -ON MECHANICAL
4" - 36" WATER MAIN
DUCTILE IRON
RESTRAINED WHERE
PRESSURE CL 350
200 PSI
200 PSI
INDICATED ON DRAWINGS
- END OF SECTION -
32270-016\15390: 01-29-19 15390-2 MALLARD CREEK REUSE

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32270-016\15390: 01-29-19 15390-2 MALLARD CREEK REUSE