NC0074268_Application (ATC)_20201102

RECEIVED
u vijullis NOV'02 2020
ENGINEERS NCDEQ/DWRINPDi
October 30, 2020 1922.052 (34)
North Carolina Department of Environmental Quality
Division of Water Resources
NPDES Complex Permitting Unit
512 N. Salisbury Street, 9th Floor
Raleigh, North Carolina 27604
Subject: Two Rivers Utilities
Crowders Creek WWTP—Bar Screen
Request for Authorization to Construct
To whom it may concern:
Two Rivers Utilities in the City of Gastonia is planning to make improvements to its existing
headworks at the Crowders Creek WWTP. In general, the project consists of adding new
screening equipment in an existing concrete structure. The original plant was constructed with
locations for two mechanical screens and one manual bypass screen. The original mechanical
screen is nearing the end of its useful life and therefore a new screen will be installed in the
space available for redundancy. The original screen will be replaced in a future project.
On behalf of the City, we respectfully request an Authorization to Construct. Enclosed please
find one set, along with a CD, containing the following documents for your review:
• Original executed Application for Authorization to Construct (Form ATC-12-14)
• Engineering Plans
• Engineering Specifications
Should you have any questions or need additional information, please feel free to call me at
704.338.4671 or email me at [e-mail].
Yours very truly,
WILLIS ENGINEERS
L.
Jim C. Stowe, P.E.
Enclosures
cc w/Enclosures: Mr. Kevin Graves, Two Rivers Utilities
10700 Sikes Place,Suite 115
Charlotte, North Carolina 28277
704.377.9844/NC License F-0114

•
F i `q State of North Carolina
V artment of Environmental Quality
NOV-02 2020 Division of Water Resources
Water Resources NCDEU/DWR/NPDi
ENVIRONMENTAL QUALITY APPLICATION FOR AUTHORIZATION TO CONSTRUCT PERMIT(FORM ATC-12-14)
SECTION 1: INSTRUCTIONS AND INFORMATION
A. The Division of Water Resources will accept this application package for review only if all of the items are provided and the
application is complete.Failure to submit all of the required items will result in the application package being returned as incomplete
per 15A NCAC 02T.0105(b).
B. Plans and specifications must be prepared in accordance with 15 NCAC 02H.0100,15A NCAC 02T,North Carolina General Statute
133-3, North Carolina General Statute 143-215.1, and Division of Water Resources Minimum Design Criteria for NPDES
Wastewater Treatment Facilities.
C. The plans and specifications submitted must represent a completed final design that is ready to advertise for bid.
D. Any content changes made to this Form ATC-12-14 shall result in the application package being returned.
E. The Applicant shall submit ONE ORIGINAL and ONE DIGITAL COPY (CD) of the application, all supporting documentation and
attachments. All information must be submitted bound or in a 3-ring binder, with a Section tab for each Section, except the
Engineering Plans.
F. Check the boxes below to indicate that the information is provided and the requirements are met.
G. If attachments are necessary for clarity or due to space limitations, such attachments are considered part of the application
package and must be numbered to correspond to the item referenced.
H. For any project that requires review under the State Environmental Policy Act(SEPA), an Authorization to Construct cannot be
issued prior to the completion of a State Clearinghouse advertisement period for a FONSI,EIS,etc. unless the project qualifies for
a Determination of Minor Construction Activity.
I. For more information,visit the Division of Water Resources web site at:https://deq.nc.gov/about/divisions/water-resources/water-
resou rces-perm its/wastewater-bra nch/n pdes-wastewater/a uthorization-to-construct.
J. In addition to this Authorization to Construct,the Applicant should be aware that other permits may be required from other Sections
of the Division of Water Resources(for example: reclaimed water facilities permits;Class A or B biosolids residuals permit).
SECTION 2:APPLICANT INFORMATION AND PROJECT DESCRIPTION
A. APPLICANT
Applicant's name Two Rivers Utilities
Signature authority's name per 15A NCAC 02T.0106(1?) Stephanie Scheringer
Signature authority's title Wastewater Treatment Division Manager
Complete mailing address PO Box 1748,Gastonia,NC 28053-1748
Telephone number 704.866.6726
Email address [e-mail]
B. PROFESSIONAL ENGINEER
Professional Engineer's name James C.Stowe
Professional Engineer's title Project Manager
North Carolina Professional Engineer's License No. 032639
Firm name Willis Engineers, Inc.
Firm License number F-0114
Complete mailing address 10700 Sikes Place,Suite 115,Charlotte, North Carolina 28277
Application for Authorization to Construct Permit(FORM ATC-12-14) Page 1

1
State of North Carolina
Department of Environmental Quality
Division of Water Resources
Water Resources
ENVIRONMENTAL QUALITY APPLICATION FOR AUTHORIZATION TO CONSTRUCT PERMIT(FORM ATC-12-14)
Telephone number 704.377.9844
Email address [e-mail]
C. NPDES PERMIT
NPDES Permit number NC0074268
Current Permitted flow(MGD)—include permit
flow phases if applicable 6.0 MGD
D. PROJECT DESCRIPTION
Provide a brief description of the project:The project is located at the Crowders Creek Wastewater Treatment Plant and
includes installing a new mechanically raked screen. The original construction of the plant included concrete channels for two
screens but only one screen was originally installed. The existing screen is nearing the end of its useful life and a second screen
is proposed to be installed in the space available for redundancy. The original screen will be replaced in a future project.
SECTION 3:APPLICATION ITEMS REQUIRED FOR SUBMITTAL FOR ALL PROJECTS
A. Cover Letter
® The letter must include a request for the Authorization to Construct;the facility NPDES Number;a brief project description
that indicates whether the project is a new facility,facility modification,treatment process modification,or facility expansion;
the construction timeline;and a list of all items and attachments included in the application package.
❑ If any of the requirements of 15 NCAC 02H. 0100, 15A NCAC 02T, North Carolina General Statute 133-3, North Carolina
General Statute 143-215.1, and Division of Water Resources Minimum Design Criteria for NPDES Wastewater Treatment
Facilities are not met by the proposed design,the letter must include an itemized list of the requirements that are not met.
B. NPDES Permit
❑ Submit Part I of the Final NPDES permit for this facility that includes Part A(Effluent Limitations and Monitoring Requirements)
for the monthly average flow limit that corresponds to the work that is requested for this project.
C. Special Order by Consent
O If the facility is subject to any Special Orders by Consent(SOC),submit the applicable SOC.
® Not Applicable.
D. Finding of No Significant Impact or Record of Decision
❑ Submit a copy of the Finding of No Significant Impact or Record of Decision for this project.
❑ Provide a brief description of any of the mitigating factors or activities included in the approved Environmental Document
that impact any aspect of design of this project,if not specified in the Finding of No Significant Impact or Record of Decision.
® Not Applicable.
Application for Authorization to Construct Permit(FORM ATC-12-14) Page 2

1
State of North Carolina
Department of Environmental Quality
Division of Water Resources
Water Resources
ENVIRONMENTAL QUALITY APPLICATION FOR AUTHORIZATION TO CONSTRUCT PERMIT(FORM ATC-12-14)
E. Engineering Plans
® Per 15A NCAC 02T.0504(c)(1),submit one set of detailed plans that have been signed,sealed and dated by a North Carolina
Licensed Professional Engineer.
® Per 21 NCAC 56.1103(a)(6),the name,address and License number of the Licensee's firm shall be included on each sheet of
the engineering drawings.
® Plans must be labeled as follows: FINAL DRAWING—FOR REVIEW PURPOSES ONLY—NOT RELEASED FOR CONSTRUCTION.
❑ 15A NCAC 02H .0124 requires multiple (dual at a minimum) components such as pumps, chemical feed systems, aeration
equipment and disinfection equipment. Is this requirement met by the design? ❑ Yes or ❑ No. If no, provide an
explanation: Not applicable
Plans shall include:
® Plans for all applicable disciplines needed for bidding and construction of the proposed project(check as appropriate):
❑ Civil ® Not Applicable
® Process Mechanical ❑ Not Applicable
❑ Structural ®Not Applicable
® Electrical ❑Not Applicable
❑ Instrumentation/Controls ®Not Applicable
❑ Architectural ®Not Applicable
❑ Building Mechanical ® Not Applicable
❑ Building Plumbing ®Not Applicable
® Plan and profile views and associated details of all modified treatment units including piping,valves,and equipment(pumps,
blowers,mixers,diffusers,etc.)
❑ Are any modifications proposed that impact the hydraulic profile of the treatment facility?❑Yes or® No. If yes,provide
a hydraulic profile drawing on one sheet that includes all impacted upstream and downstream units. The profile shall include
the top of wall elevations of each impacted treatment unit and the water surface elevations within each impacted treatment
unit for two flow conditions: (1) the NPDES permitted flow with all trains in service and (2) the peak hourly flow with one
treatment train removed from service.
❑ Are any modifications proposed that impact the process flow diagram or process flow schematic of the treatment facility?
❑Yes or®No. If yes,provide the process flow diagram or process flow schematic showing all modified flow paths including
aeration, recycle/return,wasting,and chemical feed,with the location of all monitoring and control instruments noted.
F. 0 Engineering Specifications
® Per 15A NCAC 02T.0504(c)(2),submit one set of specifications that have been signed,sealed and dated by a North Carolina
Licensed Professional Engineer.
® Specifications must be labeled as follows: FINAL SPECIFICATIONS — FOR REVIEW PURPOSES ONLY— NOT RELEASED FOR
CONSTRUCTION.
Specifications shall include:
® Specifications for all applicable disciplines needed for bidding and construction of the proposed project (check as
appropriate):
❑ Civil ®Not Applicable
® Process Mechanical ❑ Not Applicable
❑ Structural ® Not Applicable
Application for Authorization to Construct Permit(FORM ATC-12-14) Page 3

4,
BILZ
State of North Carolina
Department of Environmental Quality
Division of Water Resources
Water Resources
ENVIRONMENTAL QUALITY APPLICATION FOR AUTHORIZATION TO CONSTRUCT PERMIT(FORM ATC-12-14)
❑ Electrical 0 Not Applicable
❑ Instrumentation/Controls ® Not Applicable
❑ Architectural ® Not Applicable
❑ Building Mechanical ® Not Applicable
❑ Building Plumbing ® Not Applicable
® Detailed specifications for all treatment units and processes including piping, valves, equipment (pumps, blowers, mixers,
diffusers,etc.),and instrumentation.
® Means of ensuring quality and integrity of the finished product including leakage testing requirements for structures and
pipelines,and performance testing requirements for equipment.
® Bid Form for publicly bid projects.
G. Construction Sequence Plan
® Construction Sequence Plan such that construction activities will not result in overflows or bypasses to waters of the State.
The Plan must not imply that the Contractor is responsible for operation of treatment facilities. List the location of the
Construction Sequence Plan as in the Engineering Plans or in the Engineering Specifications or in both:Construction Sequence
is located in the Contract Drawings and the Contract Documents.
H. Engineering Calculations
❑ Per 15A NCAC 02T.0504(c)(3),submit one set of engineering calculations that have been signed,sealed and dated by a North
Carolina Licensed Professional Engineer;the seal,signature and date shall be placed on the cover sheet of the calculations.
For new or expanding facilities and for treatment process modifications that are included in Section 4.C,the calculations shall
include at a minimum:
❑ Demonstration of how peak hour design flow was determined with a justification of the selected peaking factor.
❑ Influent pollutant loading demonstrating how the design influent characteristics in Section 4.B.2 of this form were
determined.
❑ Pollutant loading for each treatment unit demonstrating how the design effluent concentrations in Section 4.B.2 of this form
were determined.
❑ Hydraulic loading for each treatment unit.
❑ Sizing criteria for each treatment unit and associated equipment(blowers, mixers, pumps,etc.)
❑ Total dynamic head(TDH)calculations and system curve analysis for each pump specified that is included in Section 4.C.6.
❑ Buoyancy calculations for all below grade structures.
❑ Supporting documentation that the specified auxiliary power source is capable of powering all essential treatment units.
I. Permits
® Provide the following information for each permit and/or certification required for this project:
Permit/ If Not Issued Provide
Not Date Date Certification Status and Expected
Permit/Certification Applicable Submitted Approved Number Issuance Date
Dam Safety X
Soil Erosion and Sediment Control X
Application for Authorization to Construct Permit(FORM ATC 12 14) Page 4

a. .
State of North Carolina
,.; Department of Environmental Quality
Division of Water Resources
Water Resources
ENVIRONMENTAL QUALITY APPLICATION FOR AUTHORIZATION TO CONSTRUCT PERMIT(FORM ATC-12-14)
USCOE /Section 404 Permit X
Water Quality Certification(401) X
USCOE/Section 10 X
Stormwater Management Plan X
CAMA X
NCDOT Encroachment Agreement X
Railroad Encroachment Agreement X
Other: X
J. Residuals Management Plan
❑ For all new facilities, expanding facilities, or modifications that result in a change to sludge production and/or sludge
processes, provide a Residuals Management Plan meeting the requirements of 15A NCAC 02T .0504(j) and 15A NCAC 02T
.0508;the Plan must include:
❑ A detailed explanation as to how the generated residuals(including trash,sediment and grit)will be collected,handled,
processed,stored,treated,and disposed.
❑ An evaluation of the treatment facility's residuals storage requirements based upon the maximum anticipated residuals
production rate and ability to remove residuals.
❑ A permit for residuals utilization or a written commitment to the Applicant from a Permittee of a Department approved
residuals disposal/utilization program that has adequate permitted capacity to accept the residuals or has submitted a
residuals/utilization program application.
❑ If oil,grease,grit or screenings removal and collection is a designated unit process,a detailed explanation as to how the
oil/grease will be collected, handled,processed,stored and disposed.
® Not Applicable.
Application for Authorization to Construct Permit(FORM ATC-12-14) Page 5
I

State of North Carolina
,.a Department of Environmental Quality
Division of Water Resources
Water Resources
ENVIRONMENTAL QUALITY APPLICATION FOR AUTHORIZATION TO CONSTRUCT PERMIT(FORM ATC-12-14)
SECTION 4: PROJECT INFORMATION
A. WASTEWATER TREATMENT PLANT FLOW INFORMATION—COMPLETE FOR NEW OR EXPANDING FACILITIES
1. Provide the following flow information:
Plant Flows
Existing Plant Design MGD
Current NPDES Permit Limit MGD
Current Annual Average MGD
(past 12 months)
For Past 12 Months: For Past 24 Months:
Start Date:month/yr Start Date:month/yr
End Date:month/yr End Date:month/yr
Maximum Month MGD MGD
Maximum Day MGD MGD
Peak Hour MGD MGD
Most of Section 4 is not applicable since the project is adding a second screen at an existing Wastewater Treatment
Facility. Applicable sections are completed.
Application for Authorization to Construct Permit(FORM ATC-12-14) Page 6

State of North Carolina
Department of Environmental Quality
Division of Water Resources
Water Resources
ENVIRONMENTAL QUALITY APPLICATION FOR AUTHORIZATION TO CONSTRUCT PERMIT(FORM ATC-12-14)
B. WASTEWATER TREATMENT FACILITY DESIGN INFORMATION—COMPLETE FOR NEW OR EXPANDING FACILITIES AND
FOR TREATMENT PROCESS MODIFICATIONS
1. Have all of the requirements of 15 NCAC 02H.0100,15A NCAC 02T,North Carolina General Statute 133-3,North Carolina
General Statute 143-215.1,and Division of Water Resources Minimum Design Criteria for NPDES Wastewater Treatment
Facilities been met by the proposed design and specifications?❑Yes or❑No. If no,provide justification as to why the
requirements are not met,consistent with 15A NCAC 02T.0105(n):Not Applicable
2. Provide the design influent and effluent characteristics that are used as the basis for the project design,and the NPDES
permit limits for the following parameters:
Project Basis of Design
Design Influent Design Influent
Influent Concentration Load
Concentration- (Must be (Must be
Current Annual supported by supported by
Average(past Engineering Engineering Design Effluent
12 months)if Calculations Calculations Concentration and/or NPDES Permit Limits
Parameter Available [Section 3.H]) [Section 3.H]) Load (monthly average)
Ammonia Nitrogen mg/L Summer mg/L Summer
(NH3 N) mg/L mg/L lb/day
mg/L Winter mg/L Winter
Biochemical mg/L Summer mg/L Summer
Oxygen Demand mg/L mg/L lb/day
(BOD5) mg/L Winter mg/L Winter
Fecal Coliform per 100 mL per 100 mL
Nitrate+Nitrite
Nitrogen(NO3-N+ mg/L mg/L
N O2-N)
Total Kjeldahl
Nitrogen mg/L
mg/L mg/L
Total Nitrogen
lb/year lb/year
mg/L mg/L
Total Phosphorus mg/L mg/L lb/day
lb/year lb/year
Total Suspended mg/L mg/L lb/day mg/L mg/L
Solids(TSS)
3. Based on the"Project Basis of Design"parameters listed above,will the proposed design allow the treatment facility to
meet the NPDES Permit Limits listed above?❑Yes or❑ No. If no,describe how and why the Permit Limits will not be
met: Not Applicable
4. Per 15A NCAC 02T.0505(i), by-pass and overflow lines are prohibited. Is this condition met by the design?®Yes or❑ No
If no,describe the treatment units bypassed,why this is necessary,and where the bypass discharges:
Application for Authorization to Construct Permit(FORM ATC-12-14) Page 7

State of North Carolina
,.; Department of Environmental Quality
Division of Water Resources
Water Resources
ENVIRONMENTAL QUALITY APPLICATION FOR AUTHORIZATION TO CONSTRUCT PERMIT(FORM ATC-12-14)
5. Per 15A NCAC 02T.0505(k),multiple pumps shall be provided wherever pumps are used. Is this condition met by the
design?❑Yes or❑No. If no,provide an explanation: Not Applicable
6. Per 15A NCAC 02T.0505(I), power reliability shall be provided consisting of automatically activated standby power supply
onsite capable of powering all essential treatment units under design conditions,or dual power supply shall be provided
per 15A NCAC 02H.0124(2)(a). Is this condition met by the design? ®Yes or❑No. If no, provide(as an attachment
to this Application)written approval from the Director that the facility:
➢ Has a private water supply that automatically shuts off during power failures and does not contain elevated water
storage tanks,and
➢ Has sufficient storage capacity that no potential for overflow exists,and
➢ Can tolerate septic wastewater due to prolonged detention.
7. Per 15A NCAC 02T.0505(o),a minimum of 30 days of residual storage shall be provided. Is this condition met by the
design? ❑Yes or❑ No. If no,explain the alternative design criteria proposed for this project in accordance 15A NCAC
02T.105(n): Not Applicable
8. Per 15A NCAC 02T.0505(q),the public shall be prohibited from access to the wastewater treatment facilities. Explain how
the design complies with this requirement:The site is currently located at a WWTP and protected by fencing.
9. Is the treatment facility located within the 100-year flood plain? ❑Yes or® No. If yes,describe how the facility is
protected from the 100-year flood:
C. WASTEWATER TREATMENT UNIT AND MECHANICAL EQUIPMENT INFORMATION—COMPLETE FOR NEW OR
EXPANDING FACILITIES AND FOR MODIFIED TREATMENT UNITS
1. PRELIMINARY AND PRIMARY TREATMENT(i.e.,physical removal operations and flow equalization):
No.of Plan Sheet Specification Calculations
Treatment Unit Provided?
Units Type Size per Unit Reference Reference
(Yes or No)
Manual Bar Screen MGD at peak hourly flow
Mechanical Bar Front Cleaned No
6 MGD at peak hourly flow 1-4 46 21 00
1
Screen Bar Rake
Grit Removal MGD at peak hourly flow
Flow Equalization gallons
Primary Clarifier Circular ft diameter; ft side
water depth
Primary Clarifier Rectangular square feet; ft side
water depth
Other
Application for Authorization to Construct Permit(FORM ATC-12-14) Page 8

•
State of North Carolina
141Z.": Department of Environmental Quality
• Division of Water Resources
Water Resources
ENVIRONMENTAL QUALITY APPLICATION FOR AUTHORIZATION TO CONSTRUCT PERMIT(FORM ATC-12-14)
2. SECONDARY TREATMENT(BIOLOGICAL REACTORS AND CLARIFIERS)(i.e.,biological and chemical processes to remove
organics and nutrients)
No.of Plan Sheet Specification Calculations
Treatment Unit Type Size per Unit Provided?
Units Reference Reference
(Yes or No)
Aerobic Zones/
Tanks gallons
Anoxic Zones/
Tanks gallons
Anaerobic
Zones/Tanks gallons
Sequencing Batch
Reactor(SBR) gallons
Membrane gallons
Bioreactor(MBR)
Secondary Clarifier Circular ft diameter; ft
side water depth
Secondary Clarifier Rectangular square feet; ft
side water depth
Other
3. TERTIARY TREATMENT
No.of Plan Sheet Specification Calculations
Treatment Unit Type Size per Unit Provided?
Units Reference Reference (Yes or No)
Tertiary Clarifier Circular ft diameter; ft
side water depth
Tertiary Clarifier Rectangular square feet; ft
side water depth
Tertiary Filter square feet
Tertiary Membrane
Filtration square feet
Post-Treatment
Flow Equalization - gallons
Post-Aeration gallons
Other
4. DISINFECTION
No.of Plan Sheet Specification Calculations
Treatment Unit Provided?
Units Type Size per Unit Reference Reference
(Yes or No)
gal/day per bank at
Ultraviolet Light (Parallel;in peak hourly flow;
series)
number of banks;
number of lamps/bank
Chlorination (Gas; gallons of contact
tablet; liquid) tank/unit
Application for Authorization to Construct Permit(FORM ATC-12-14) Page 9

State of North Carolina
IC
Department of Environmental Quality
Division of Water Resources
Water Resources
ENVIRONMENTAL QUALITY APPLICATION FOR AUTHORIZATION TO CONSTRUCT PERMIT(FORM ATC-12-14)
Dechlorination (Gas; gallons of contact
tablet; liquid) tank/unit
5. RESIDUALS TREATMENT
No.of Plan Sheet Specification Calculations
Treatment Unit Type Size per Unit Provided?
Units Reference Reference
(Yes or No)
Gravity Thickening square feet; ft side
Tank water depth
Mechanical
Thickening/ dry lb/hour
Dewatering
Aerobic Digestion gallons
Anaerobic
Digestion gallons
Composting dry lb/hour
Drying dry lb/hour
Other
6. PUMP SYSTEMS(include influent,intermediate,effluent, major recycles,waste sludge,thickened waste sludge and plant
drain pumps)
No.of Capacity of Plan Sheet Specification
Location Pumps Purpose Type each pump Reference Reference
GPM TDH
7. MIXERS
No.of Power of Plan Sheet Specification
Location Mixers Purpose Type eac(hH fixer Reference Reference
)
Application for Authorization to Construct Permit(FORM ATC-12-14) Page 10

1
State of North Carolina
,.a Department of Environmental Quality
Division of Water Resources
Water Resources
ENVIRONMENTAL QUALITY APPLICATION FOR AUTHORIZATION TO CONSTRUCT PERMIT(FORM ATC-12-14)
8. BLOWERS
Capacity of
Location No.of Purpose Type each Blower Plan Sheet Specification
Blowers (CFM) Reference Reference
9. ODOR CONTROL
No.of Plan Sheet Specification
Location Units Purpose Type Reference Reference
D. SETBACKS—COMPLETE FOR NEW WASTEWATER TREATMENT STRUCTURES
1. The minimum distance for each setback parameter to the wastewater treatment/storage units per 15A NCAC 02T.0506(b)
are as follows:
Minimum Distance Is Minimum Distance
Required from Nearest Requirement met by the
Setback Parameter Design?If"No",identify
Treatment/Storage
Unit Setback Waivers in Item D.2
Below
Any habitable residence or place of assembly under separate 100 ft ®Yes ❑No
ownership or not to be maintained as part of the project site
Any private or public water supply source 100 ft ®Yes ❑No
Surface waters(streams—intermittent and perennial,perennial 50 ft ®Yes ❑No
waterbodies,and wetlands)
Any well with exception of monitoring wells 100 ft ®Yes ❑No
Any property line 50 ft ®Yes I ❑No
2. Have any setback waivers been obtained per 15A NCAC 02T .0506(d)? ❑ Yes or ® No. If yes, have these waivers been
written, notarized and signed by all parties involved and recorded with the County Register of Deeds?❑Yes or❑ No. If
no,provide an explanation:
Application for Authorization to Construct Permit(FORM ATC-12-14) Page 11
E

State of North Carolina
Department of Environmental Quality
Division of Water Resources
Water Resources
ENvic2ONKEN,AL(uAL ,Y APPLICATION FOR AUTHORIZATION TO CONSTRUCT PERMIT(FORM ATC-12-14)
SECTION 5: APPLICATION CERTIFICATION BY PROFESSIONAL ENGINEER
Professional Engineer's Certification per 15A NCAC 02T.0105:
I, James C. Stowe , attest that this application package for an Authorization to Construct
(Typed Name of Professional Engineer)
for the Two Rivers Utilities-Crowders Creek WWTP Bar Screen
(Facility and Project Name)
was prepared under my direct supervisory control and to the best of my knowledge is accurate, complete and consistent
with the information supplied in the engineering plans, specifications, calculations, and all other supporting
documentation for this project. I further attest that to the best of my knowledge the proposed design has been
prepared in accordance with all applicable regulations and statutes, 15 NCAC 02H. 0100, 15A NCAC 02T, North Carolina
General Statute 133-3, North Carolina General Statute 143-215.1, and Division of Water Resources Minimum Design
Criteria for NPDES Wastewater Treatment Facilities,and this Authorization to Construct Permit Application, except as
provided for and explained in Section 4.B.1 of this Application. I understand that the Division of Water Resources'
issuance of the Authorization to Construct Permit may be based solely upon this Certification and that the Division may
waive the technical review of the plans, specifications, calculations and other supporting documentation provided in this
application package. I further understand that the application package may be subject to a future audit by the Division.
Although certain portions of this submittal package may have been prepared, signed and sealed by other professionals
licensed in North Carolina, inclusion of these materials under my signature and seal signifies that I have reviewed the
materials and have determined that the materials are consistent with the project design.
I understand that in accordance with General Statutes 143-215.6A and 143-215.6B, 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 with written signature placed over or adjacent to the seal and dated:
30 OCT 2020
00„uI1,,,,,
,�OQ�oF ss o*.4�
QP q�•
SEAL
- 32639
„1 GIN.. ,AA „
C. S
Application for Authorization to Construct Permit(FORM ATC-12-14) Page 12

State of North Carolina
Department of Environmental Quality
Division of Water Resources
Water Resources
ENVIRONMENTAL QUALITY APPLICATION FOR AUTHORIZATION TO CONSTRUCT PERMIT(FORM ATC-12-14)
SECTION 6:APPLICATION CERTIFICATION BY APPLICANT
Applicant's Certification per 15A NCAC 02T.0106(b):
I,Stephanie Scheringer,Wastewater Treatment Division Manager,attest that this application package for an Authorization to
Construct
(Typed Name of Signature Authority and Title)
for the Two Rivers Utilities-Crowders Creek WWTP Bar Screen
(Facility and Project Name)
has been reviewed by me and is accurate and complete to the best of my knowledge. 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 in
accordance with 15A NCAC 02T.0120(b),the Applicant or any affiliate has not been convicted of environmental crimes,
has not abandoned a wastewater facility without proper closure,does not have an outstanding civil penalty where all
appeals have been abandoned or exhausted,are compliant with any active compliance schedule, and does not have any
overdue annual fees.
I understand that the Division of Water Resources' issuance of the Authorization to Construct Permit may be based
solely upon acceptance of the Licensed Professional Engineer's Certification contained in Section 5,and that the Division
may waive the technical review of the plans,specifications,calculations and other supporting documentation provided
in this application package. I further understand that the application package may be subject to a future audit.
I understand that in accordance with General Statutes 143-215.6A and 143-215.6B 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.
Signature: Date: IQ. 7. O C
THE COMPLETED APPLICATION AND SUPPORTING INFORMATION SHALL BE SUBMITTED TO:
NORTH CAROLINA DEPARTMENT OF ENVIRONMENT AND NATURAL RESOURCES
DIVISION OF WATER RESOURCES/NPDES
By U.S. Postal Service By Courier/Special Delivery:
1617 MAIL SERVICE CENTER 512 N. SALISBURY STREET, 9TH FLOOR
RALEIGH, NORTH CAROLINA 27699-1617 RALEIGH, NORTH CAROLINA 27604
TELEPHONE NUMBER: [phone]
Application for Authorization to Construct Permit(FORM ATC-12-14) Page 13

Technical Specifications
Wastewater Facilities
Crowders Creek WWTP Bar Screen
RECEIVED
TWO RIVERS Novo 2 2020
NCDEQ/DWR/NPDi
We are TRU to our customers!
29 OCT 2020
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CHARLOTTE, NORTH CAROLINA 28277
NC LICENSE NO. F-0114

Technical Specifications
Wastewater Facilities
Crowders Creek WWTP Bar Screen
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ENGINEERS
WILLIS ENGINEERS
10700 SIKES PLACE, SUITE 115
CHARLOTTE, NORTH CAROLINA 28277
NC LICENSE NO. F-0114

TABLE OF CONTENTS
TWO RIVERS UTILITIES
WASTEWATER FACILITIES
CROWDERS CREEK WWTP BAR SCREEN
DIVISION 01 GENERAL REQUIREMENTS
01 11 00 Summary of Work
01 14 00 Work Restrictions
01 20 00 Measurement and Payment
01 33 00 Submittal Procedures
01 57 13 Ground Stabilization and Materials Handling
01 66 00 Product Storage and Handling Requirements
01 73 00 Execution
DIVISION 02 DEMOLITION AND STRUCTURE MOVING
02 41 16 Structure Demolition
DIVISION 05 METALS
05 50 00 Metal Fabrications
DIVISION 09 FINISHES
09 90 00 Field Coatings
DIVISION 11 EQUIPMENT
11 05 13 Motor Requirements
DIVISION 26 ELECTRICAL
26 00 00 Electrical Systems
26 05 19 Low Voltage Electrical Power Conductors and Cables
26 05 26 Grounding and Bonding for Electrical Systems
26 05 33 Conduits and Raceways
DIVISION 32 EXTERIOR IMPROVEMENTS
32 92 00 Turf and Grasses
DIVISION 46 WATER AND WASTEWATER EQUIPMENT
46 21 00 Screening Equipment
1922.052 TWO RIVERS UTILITIES
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DIVISION 01—GENERAL REQUIREMENTS
SECTION 01 1100—SUMMARY OF WORK
PART 1-GENERAL
1.01 DESCRIPTION.
A. The following summary of work is a general description of work to be performed under the
Project. This description does not supersede any other requirements to the Contract
Documents.
1. Furnish and install new multi-rake bar screen.
2. Furnish and install new control panel.
3. Relocation existing bar screen control panel.
4. Furnish and install conduit and wire for new bar screen.
5. Connect new control panel to existing SCADA.
1.02 LOCATION OF WORK.
A. The construction site is located at the Crowders Creek Wastewater Treatment Plant in the
City of Gastonia.
1.03 CONTRACT TIME.
A. The number of days within which, or the dates by which the work is to be substantially
completed are set forth in the Agreement.
1.04 COORDINATION OF WORK.
A. The Contractor is advised that work on the project is to be performed in an active wastewater
treatment plant. The Contractor shall coordinate his efforts as to not interfere with the
normal operation of the Plant.
1.05 QUALITY ASSURANCE.
A. The Contractor shall provide all construction in a workman like manner and provide access
to the Engineer or Owner for inspection of the work as prescribed in the General Conditions.
PART 2—PRODUCTS
This section not used.
PART 3—EXECUTION
This section not used.
END OF SECTION 01 11 00
1922.052 TWO RIVERS UTILITIES
_/_/_ 01 1100-1 CCWWTP BAR SCREEN

DIVISION 01—GENERAL REQUIREMENTS
SECTION 01 1100—SUMMARY OF WORK
PART 1-GENERAL
1.01 DESCRIPTION.
A. The following summary of work is a general description of work to be performed under the
Project. This description does not supersede any other requirements to the Contract
Documents.
1. Furnish and install new multi-rake bar screen.
2. Furnish and install new control panel.
3. Relocation existing bar screen control panel.
4. Furnish and install conduit and wire for new bar screen.
5. Connect new control panel to existing SCADA.
1.02 LOCATION OF WORK.
A. The construction site is located at the Crowders Creek Wastewater Treatment Plant in the
City of Gastonia.
1.03 CONTRACT TIME.
A. The number of days within which, or the dates by which the work is to be substantially
completed are set forth in the Agreement.
1.04 COORDINATION OF WORK.
A. The Contractor is advised that work on the project is to be performed in an active wastewater
treatment plant. The Contractor shall coordinate his efforts as to not interfere with the
normal operation of the Plant.
1.05 QUALITY ASSURANCE.
A. The Contractor shall provide all construction in a workman like manner and provide access
to the Engineer or Owner for inspection of the work as prescribed in the General Conditions.
PART 2—PRODUCTS
This section not used.
PART 3—EXECUTION
This section not used.
END OF SECTION 01 1100
1922.052 TWO RIVERS UTILITIES
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SECTION 01 14 00—WORK RESTRICTIONS
PART 1-GENERAL
1.01 TRAVEL NOT TO BE OBSTRUCTED.
A. The Contractor shall not allow travel upon any street, park, roadway, or alley to be hindered
or inconvenienced needlessly, nor shall the same be wholly obstructed without the written
permission of the owner thereof in which case the Contractor shall cause plain and properly
worded signs announcing such fact to be placed,with proper barricades,at the nearest cross
streets, upon each side of such obstructed portion, where travel can pass around the same
in the shortest and easiest way.
1.02 MAINTAINING FLOW OF LINES.
A. The Contractor shall, at his expense, provide for and maintain the flow of all sewers, drains,
house or inlet connections and all water-courses which may be met with during the progress
of the work including any necessary bypass pumping. He shall not allow the contents of any
sewer, drain or house inlet connection to flow into trenches, sewers, or other structures to
be constructed under the Contract, and shall at his own expense, immediately remove and
cart away from the vicinity of the work all offensive matter.
B. The Contractor shall,at his own expense, provide for and maintain the flow in all water mains
or laterals which may be met with during the progress of the work. When water mains or
laterals are to be disturbed to the extent that the water will be shut off,the superintendent
of the water utility and all parties being served by the lines involved shall be notified 72 hours
in advance, giving them time and duration of the shut-off period. Any water service
interruption must be scheduled and approved by the Owner.
1. In the case of an accidental breaking of a water line,the repairs of such break shall have
priority over all other operations. The Engineer shall be notified immediately.
2. The parties whose services are affected by the break and the utility shall be notified at
once and all assistance given to supply emergency water where necessary by temporary
lines, tank truck, or other means.
C. The Contractor shall have the obligation at his expense to assure that all water,gas and sewer
connections serving private or public property shall be promptly and correctly restored.
D. In cases involving fire hydrants, the fire department shall be so notified. In the case of an
accidental breaking of a water line,the repairs of such break shall have priority over all other
operations. The parties whose services are affected by the break shall be notified at once
and all assistance given to supply emergency water where necessary by temporary lines,tank
truck, or other means. The Contractor shall have the obligation at his expense to assure that
all water,gas and sewer connections serving private or public property shall be promptly and
correctly restored.
E. The Contractor is advised that work on the project is to be performed in an active wastewater
treatment plant. The Contractor shall coordinate his efforts as to not interfere with the
normal operations at the Plant.
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1.03 PROJECT SCHEDULE.
A. The Contractor shall submit to the Engineer for approval a copy of a practical and feasible
work schedule.
B. The work schedule may be in the form of a critical path or bar graph. All schedules shall be
updated by the Contractor on a monthly basis.
C. Where there is more than one Contract on the Project,the Contractor shall, within ten days
following the execution of his Contract with the Owner, submit six copies of his own
proposed work schedule to the Engineer for approval. After approval, sufficient additional
copies of the approved schedule shall be submitted to the Engineer for transmittal of two
copies to each of the other contractors, who shall then prepare and submit their own work
schedules for approval. The Contractor shall then incorporate these schedules into his
schedule.
D. The Contractor on each Contract shall adhere to the approved work schedule for his
Contract. In the event a Contractor does not adhere to his work schedule and causes other
contractors to be damaged, the Contractor causing the delay shall save the Owner and
Engineer harmless from all actions and charges of the other contractors against the Owner
or Engineer caused by said delay.
PART 2—PRODUCTS
This section not used.
PART 3—EXECUTION
This section not used.
END OF SECTION 01 14 00
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SECTION 01 20 00—MEASUREMENT AND PAYMENT
PART 1-GENERAL
1.01 SUMMARY.
A. This section covers methods of measurement and payment for items of work under the Bid
Form.
1.02 GENERAL.
A. The total bid price shall cover all work required by the Contract Documents. All costs in
connection with the proper and successful completion of the work; including furnishing all
materials, equipment, supplies, and appurtenances; providing all construction plans,
equipment, and tools; and performing all necessary labor and supervision to fully complete
the work, shall be included in the bid prices. All work not specifically set forth as to pay item
in Bid Form shall be considered subsidiary obligations of the Contractor, and all costs in
connection therewith shall be included in the bid prices.
B. Payment for Controls Allowance shall be made from an allowance as listed in the Bid Form.
Payment for the Controls will be for work specifically designated as being performed by the
City's Systems Integrator. No additional payment will be made for this work.
C. The measurement and payment for Contingency Allowance shall be equal to the lump sum
cost as listed in Bid Form. Payment for Contingency Allowance will be for additional work
specifically directed in writing by Engineer. No Contingency Allowance payments shall be
made for work not authorized by Engineer.
PART 2—PRODUCTS
This section not used.
PART 3—EXECUTION
This section not used.
END OF SECTION 01 20 00
1922.052 TWO RIVERS UTILITIES
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SECTION 0133 00—SUBMITTAL PROCEDURES
PART 1-GENERAL
1.01 GENERAL.
A. The Contractor shall submit shop drawings for all equipment and materials in accordance
with the provisions of the General Conditions.
B. All discrepancies or deviations from the Contract Drawings or Specifications shall be clearly
identified on the front of the shop drawing submittal.
C. Each drawing shall be dated and shall show the name of the Project, Contract number and
the name of the manufacturer of the equipment covered by the drawing or drawings.
D. No work covered by shop and setting drawings shall be done until the drawings have been
approved by the Engineer.
E. No approval will be given for any shop drawings until shop drawings for related items are
received.
1.02 SHOP DRAWING APPROVAL PROCEDURE.
A. The following procedure shall be followed in the submittal and processing of shop drawings:
1. The Contractor shall submit at least four copies of drawings, catalog data, and similar
items for review and approval. This number includes one for return to the Contractor
bearing approval or request for amendment. If the Contractor desires more than one
copy returned to him, he shall submit with the initial and subsequent transmittals the
additional number desired. If the Engineer requires additional copies, he will so inform
the Contractor.
2. In lieu of paper submittal the Contractor may supply a neatly formatted PDF submittal.
3. Drawings and similar data will be stamped by the Engineer as follows:
a. "Approved",if no change or rejection is made. All but three copies of the submitted
data will be returned.
b. "Approved as Noted", if minor changes or additions are made, but resubmittal is
not considered necessary. All but three copies of the submitted data will be
returned and all copies will bear the corrective marks.
c. "Examined and Returned for Correction", if the changes requested are extensive or
retransmittal of the submittal is required to another Contractor. In this case
resubmittal after correction is necessary and the same number of copies shall be
included in the resubmittal.
4. Unless otherwise approved in specific cases, all data must be transmitted by the
Contractor; not by subcontractors or vendors.
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5. Any changes other than those indicated as requested, made in the drawings or other
data, must be specifically brought to the attention of the Engineer upon resubmittal.
Changes or additions shall not be made in or to approved data without re-approval by
the Engineer.
PART 2—PRODUCTS
This section not used.
PART 3—EXECUTION
This section not used.
END OF SECTION 01 33 00
•
•
•
1922.052 TWO RIVERS UTILITIES
09/14/20 01 33 00-2 CCWWTP BAR SCREEN

SECTION 01 57 13—GROUND STABILIZATION AND MATERIALS HANDLING
PART 1—GENERAL
1.01 GENERAL.
A. The Contractor shall take whatever measures necessary to minimize soil erosion and siltation
caused by his operations. He shall keep fully informed of all such regulations which in any
way affect the conduct of the work, and shall at all times observe and comply with all such
regulations.
B. The North Carolina Sedimentation Pollution Control Act of 1973 requires that all visible
sediment be contained within the boundaries of a construction site. The Contractor shall
exercise every reasonable precaution, throughout the life of the project, to contain all
siltation within the construction site and to prevent the eroding of soil and the silting of
streams, lakes, reservoirs, other water impoundments,ground or roadway surfaces or other
property. The erosion/siltation control measures for this project, as stated in these
specifications and shown on the Drawings, have been approved by the North Carolina
Department of Environmental Quality (NCDEQ), Division of Energy, Mineral and Land
Resources. Details referenced herein are the required minimum details prescribed by the
State.This project is subject to periodic inspection by the Department during construction.
C. The ground stabilization, and materials handling measures defined herein and shown on the
Drawings are in accordance with General Permit No. NCG01. The Contractor shall comply
with the applicable details and specifications in order to maintain compliance with the
General Permit.
D. The measures defined herein and approved by NCDEQ do not include offsite borrow or spoil
areas. The use of offsite borrow or spoil areas will require proper documentation by the
Contractor that all applicable regulations are being satisfied.
1.02 GROUND STABILIZATION.
A. The erosion and siltation control measures shown on the plans or required by field conditions
at the time of construction shall be installed before any land disturbing activity in the
drainage area within which they are located. They shall be maintained in proper working
order until permanent ground cover is re-established. Permanent ground cover shall be
established within the number of calendar days after ceasing land disturbing activities as
specified below:
Site Area Description Calendar Days Timeframe Variations
Perimeter dikes, swales, 7 None
ditches, and perimeter slopes
High Quality Water (HQW) 7 None
Zones
1922.052 TWO RIVERS UTILITIES
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1

Slopes steeper than 3:1 7 If slopes are 10' of less in length and are
not steeper than 2:1, 14 days are allowed
-7 days for slopes greater than 50' in
length and slopes steeper than 4:1
Slopes 3:1 to 4:1 14 -7 days for perimeter dikes, swales,
ditches, perimeter slopes & HOW Zones
-10 days for Falls Lake Watershed
-7 days for perimeter dikes, swales,
Areas with slopes flatter than ditches, perimeter slopes & HQW Zones
4:1 14 -10 days for Falls Lake Watershed unless
there is zero slope
B. Ground cover will consist of seeding, mulching and fertilizing as specified. Particular
attention will be given to prompt establishment of temporary ground cover along cut and fill
slopes. The Contractor will be required to follow the land disturbing activities (as closely as
practical)with his site restoration, fertilizing, seeding, and mulching.
C. After the permanent completion of construction activities, any areas with temporary ground
stabilization shall be converted to permanent ground stabilization as soon as practicable but
in no case longer than 90 calendar days after the last land disturbing activity. Temporary
ground stabilization shall be maintained in a manner to render the surface stable against
accelerated erosion until permanent ground stabilization is achieved.
1.03 TEMPORARY GROUND COVER.
A. If land disturbing activities are completed such that permanent seeding will be delayed or
vegetative cover is needed for less than one year, temporary ground cover shall be
established. If temporary ground cover is required between January 1 and May 1, the cover
shall be established with a seed mixture of Rye Grain applied at a rate of 120 lbs per acre and
Kobe Lespedeza applied at a rate of 50 lbs per acre. If temporary ground cover is required
between May 1 and August 15,the cover shall be established with a seed mixture of German
Millet applied at a rate of 40 lbs per acre. If temporary ground cover is required between
August 15 and December 30, the cover shall be established with a seed mixture of Rye Grain
applied at a rate of 120 lbs per acre. All seeding shall be as specified.
B. Lime, fertilizer, and mulching shall be provided as specified. Mulch shall be anchored by
crimping using a mulch anchor tool or by application of a liquid mulch binder.
1.04 BUFFER ZONE.
A. When practical,the Contractor shall leave intact a natural buffer zone between construction
and the natural watercourse. This zone shall contain sufficient vegetative cover to be
adjudged capable of retarding and confining visible siltation. Should the proximity of
construction not allow an adequate natural buffer zone, the Contractor shall erect and
maintain erosion and siltation control devices as necessary to prevent silt from escaping the
site in the event of rainfall prior to backfill and restoration.
1922.052 TWO RIVERS UTILITIES
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B. Buffer zones shall be in compliance with the North Carolina Sedimentation Pollution Control
Act of 1973 and General Permit No. NCG01.
PART 2—PRODUCTS
2.01 POLYACRYLAMIDES (PAMS)AND FLOCCULANTS.
A. Select flocculants that are appropriate for the soils being exposed during construction,
selecting from the NC DWR List of Approved PAMS/Flocculants.
B. Apply flocculants at the concentrations specified in the NC DWR List of Approved
PAMS/Flocculants and in accordance with the manufacturer's instructions.
C. Store flocculants in leak-proof containers that are kept under storm-resistant cover or
surrounded by secondary contaminant structures.
2.02 SEDIMENT FENCES.
A. Sediment Fences (Silt Check Fence) shall be constructed where shown on the plans.
Construction shall conform to Erosion Control Detail 6.62.
B. Synthetic filter fabric shall be Mirafi, Inc., Phillups Petroleum Company, or equal. Posts shall
be 4-inch pine, 2-inch oak, or 1.33 pound per foot steel. Post spacing shall be maximum 8
feet on center with wire mesh fabric support, or may be 6 feet on center with extra strength
filter fabric.
C. Inspect silt fences weekly and after each rainfall event 1.0 inch and greater. Remove
sediment as needed to maintain adequate storage. If silt fence becomes damaged or
collapses, replace immediately. Silt fence shall be removed after drainage area has been
stabilized. Any maintenance or replacement of silt fence shall be properly documented with
an Inspection Report.
2.03 MATTING.
A. All disturbed ditches shall be lined with excelsior matting per the manufacturer's
recommendations. Matting for erosion control shall not be dyed, bleached or otherwise
treated in a manner that will result in toxicity to vegetation. Other acceptable material
manufactured especially for erosion control may be used when approved by the Engineer in
writing before being used.
B. Excelsior matting shall consist of a machine produced mat of curled wood excelsior at least
47" in width and weigh 0.975 Ib/sy with a tolerance of± 10%. At least 80% of the individual
excelsior fibers shall be 6" or more in length. Evenly distribute the excelsior fibers over the
entire area of the blanket. Cover one side of the excelsior matting with an extruded plastic
mesh.The mesh size for the plastic mesh shall be no more than 1"x 1".
C. Matting shall be held down with machine made staples of No. 11 gauge new steel wire
formed into a U-shape. The size when formed shall be not less than 6"in length with a throat
of not less than 1" in width.
1922.052 TWO RIVERS UTILITIES
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2.04 WATTLE.
A. Wattles (straw logs) are tubular products consisting of straw materials encased in synthetic
netting. Wattles shall be constructed where shown on the plans and where required along
the roadside drainage ditches. Wattles shall be 12-inch diameter made of biodegradable
fibers. Wattles shall be anchored utilizing hardwood stakes a minimum 2-feet long with a 2-
inch x 2-inch square cross section. A minimum of four stakes shall be installed on the
downstream side with no more than 2-inches exposed. Wattles shall also be secured to the
soil by wire staples every 12-inches and at the end of each section.
B. Inspect wattles weekly and after each rainfall event 1.0 inch and greater. Clean out sediment
and other debris to prevent damage to channel vegetation. The wattle shall be replaced if
clogged or worn.
PART 3—EXECUTION
3.01 EQUIPMENT AND VEHICLE MAINTENANCE.
A. Maintain vehicles and equipment to prevent discharge of fluids.
B. Identify leaks and repair as soon as feasible, or remove leaking equipment from the project.
C. Collect all spent fluids, store in separate containers and properly dispose as hazardous waste
(recycle when possible).
D. Remove leaking vehicles and construction equipment from service until the problem has
been corrected.
3.02 LITTER, BUILDING MATERIAL,AND LAND CLEARING WASTE.
A. The Contractor shall never bury or burn waste. Place litter and debris in approved waste
containers.
B. The Contractor shall provide a sufficient number and size of waste containers (e.g.
dumpsters, trash receptable) on site to contain construction and domestic wastes.
C. Locate waste containers at least 50 feet away from storm drain inlets and surface waters
unless no other alternatives are reasonably available.
D. Waste shall be disposed of off-site at an approved disposal facility.
3.03 PAINT AND OTHER LIQUID WASTE.
A. Contractor shall not dump paint and other liquid waste into storm drains, streams or
wetlands.
B. Locate paint washouts at least 50 feet away from storm drain inlets and surface waters unless
no other alternatives are reasonably available.
C. Contractor shall prevent the discharge of soaps,solvents,detergents,and other liquid wastes
from construction sites.
1922.052 TWO RIVERS UTILITIES
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3.04 EARTHEN STOCKPILE MANAGEMENT.
A. Stockpiles shall be located only as shown on the Contract Drawings. Stockpile areas shall not
be placed within S0 feet of storm drain inlets, sediment basins, perimeter sediment controls
and surface waters.
3.05 CONCRETE WASHOUTS.
A. Contractor shall not discharge concrete or cement slurry from the site.
B. Dispose of, or recycle, settled, hardened concrete residue in accordance with local and state
solid waste regulations and at an approved facility.
C. Locate washouts at least 50 feet from storm drain inlets and surface waters unless it can be
shown that no other alternatives are reasonably available. At a minimum, install protection
of storm drain inlet(s) closest to the washout which could receive spills or overflow.
D. Following completion of concrete work, remove remaining leavings and dispose of in an
approved disposal facility. Fill pit, if applicable, and stabilize any disturbance caused by
removal of washout.
3.06 HERBICIDES, PESTICIDES,AND RODENTICIDES.
A. Herbicides, pesticides, and rodenticides shall be stored and applied in accordance with the
Federal Insecticide, Fungicide, and Rodenticide Act and label restrictions.
B. Contractor shall store herbicides, pesticides, and rodenticides in their original containers
with the label, which lists directions for use, ingredients, and first aid steps in case of
accidental poisoning.
3.07 HAZARDOUS AND TOXIC WASTES.
A. Hazardous or toxic waste shall be managed in accordance with the federal Resource
Conservation and Recovery Act (RCRA) and NC Hazardous Waste Rules established by 15A
NCAC, Subchapter 13A.
B. Contractor shall create a designated hazardous waste collection area on-site as applicable.
3.08 DRAWDOWN OF SEDIMENT BASINS FOR MAINTENANCE OR CLOSEOUT.
A. Sediment basins and traps that receive runoff from drainage areas of one acre or more shall
use outlet structures that withdraw water from the surface when these devices need to be
drawn down for maintenance or close out unless this is feasible.The circumstances in which
it is not feasible to withdraw water from the surface shall be rare (e.g.times with extended
cold weather). Non-surface withdrawals from sediment basins shall be allowed only when all
of the following criteria have been met:
1. The Erosion and Sediment Control plan authority has been provided with
documentation of the non-surface withdrawal and the specific time periods or
1922.052 TWO RIVERS UTILITIES
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conditions in which it will occur. The non-surface withdrawal shall not commence until
the E&SC plan authority has approved these items.
2. The non-surface withdrawal has been reported as an anticipated bypass in accordance
with Part III, Section C, Item (2)(c) and (d) of General Permit NCG01.
3. Dewatering discharges are treated with controls to minimize discharges of pollutants
from stormwater that is removed from the sediment basin. Examples of appropriate
controls include properly sited, designed and maintained dewatering tanks, weir tanks,
and filtration systems.
4. Vegetated, upland areas of the sites or a properly designed stone pad is used to the
extent feasible at the outlet of the dewatering treatment devices described in Item 3
above.
5. Velocity dissipation devices such as check dams,sediment traps,and riprap are provided
at the discharge points of all dewatering devices.
6. Sediment removed from the dewatering treatment devices described in Item 3 above is
disposed of in a manner that does not cause deposition of sediment into waters of the
United States.
3.09 CONSTRUCTION SEQUENCE.
A. Install erosion control measures in advance of land disturbing activities.
B. Construct facilities.
C. Maintenance of erosion control devices is the Contractor's responsibility. Erosion control
measures shall be inspected weekly and after each rain event.The devices shall be inspected
for damage and repairs shall be completed immediately.
D. Reseed, mulch, and stabilize disturbed areas where applicable following equipment
installation.
E. Maintain all erosion control measures. After project area is stabilized, remove erosion
control devices.
3.10 SELF-INSPECTIONS.
A. The Contractor shall perform self-inspections as required during normal business hours in
accordance with the table below.When adverse weather or site conditions would hinder the
safety of the inspection personnel,the inspection may be delayed until the next business day
on which it is safe to perform the inspection. In addition, when a storm event of equal to or
greater than 1.0-inch occurs outside of normal business hours, the self-inspection shall be
performed upon the commencement of the next business day. Any time when inspections
were delayed shall be noted in the Inspection Record.
1922.052 TWO RIVERS UTILITIES
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Inspect Frequency Inspection Record Includes
Daily rainfall amount. If no daily rain gauge
observations are made during weekend or holiday
periods, and no individual-day rainfall information
Rain gauge is available, record the cumulative rain
maintained in
Daily measurement for those unattended days (and this
good working will determine if a site inspection is needed). Days
order on which no rainfall occurred shall be recorded as
"zero".The permittee may use another rain-
monitoring device approved by the Division.
1. Identification of the measures inspected.
2. Date and time of the inspection.
At least once per 7 3. Name of the person performing the inspection.
calendar days and 4. Indication of whether the measures were
E&SC Measures within 24 hours of operating properly.
a rain event>_ 1.0 5. Description of maintenance needs for the
inch in 24 hours measure.
6. Description, evidence, and date of corrective
actions taken.
1. Identification of the discharge outfalls
inspected.
At least once per 7 2. Date and time of the inspection.
3. Name of the person performing the inspection.
Stormwater calendar days and 4. Evidence of indicators of stormwater pollution
discharge within 24 hours of such as oil sheen, floating or suspended solids or
outfalls (SDCs) a rain event>_ 1.0
discoloration.
inch in 24 hours
5. Indication of visible sediment leaving the site.
6. Description, evidence, and date of corrective
actions taken.
If visible sedimentation is found outside the site
limits,then a record of the following shall be
At least once per 7 made:
calendar days and 1.Actions taken to clean up or stabilize the
Perimeter of within 24 hours of sediment that has left the site limits.
site
a rain event>_ 1.0 2. Description, evidence, and date of corrective
inch in 24 hours actions taken.
3.An explanation as to the actions taken to
control future releases.
If the stream or wetland has increased visible
Streams or At least once per 7 sedimentation or a stream has visible increased
wetlands onsite calendar days and turbidity from the construction activity,then a
or offsite within 24 hours of record of the following shall be made:
(where a rain event>_ 1.0 1. Description, evidence, and date of corrective
accessible) inch in 24 hours
actions taken
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2. Records of the required reports to the
appropriate Division Regional Office per Part III,
Section C, Item (2)(a) of this permit.
1.The phase of grading (installation of perimeter
E&SC measures, clearing and grubbing, installation
of storm drainage facilities, completion of all land
Ground After each phase of disturbing activity, construction of
stabilization redevelopment, permanent ground cover).
measures grading 2. Documentation that the required ground
stabilization measures have been provided within
the required timeframe or an assurance that they
will be provided as soon as possible.
*Note: The rain inspection resets the 7 calendar day inspection requirement.
3.11 RECORDKEEPING.
A. The approved E&SC plan as well as any approved deviation shall be kept on-site at all times.
The approved plan must be kept up-to-date throughout the coverage under this permit.The
following items pertaining to the E&SC plan shall be kept on-site and available for inspection
at all times during normal business hours:
Item to Document Documentation Requirements
Initial and date each E&SC measure on a copy of
Each E&SC measure has been the approved E&SC plan or complete, date, and
installed and does not significantly sign an inspection report that lists each E&SC
deviate from the locations, measure shown on the approved E&SC plan. This
dimensions and relative elevations documentation is required upon the initial
shown on the approved E&SC plan. installation of the E&SC measures or if the E&SC
measures are modified after initial installation.
A phase of grading has been Initial and date a copy of the approved E&SC plan
or complete, date and sign an inspection report to
completed. indicate completion of the construction phase.
Ground cover is located and Initial and date a copy of the approved E&SC plan
installed in accordance with the or complete, date and sign an inspection report to
approved E&SC plan. indicate compliance with approved ground cover
specifications.
The maintenance and repair
requirements for all E&SC Complete, date, and sign an inspection report.
measures have been performed.
Corrective actions have been taken Initial and date a copy of the approved E&SC plan
to E&SC measures. or complete, date and sign an inspection report to
indicate the completion of the corrective action.
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B. In addition to the E&SC plan documents above, the Contract shall keep the following items
on site and available for inspectors at all times during normal business hours, unless the
Division provides a site-specific exemption based on unique site conditions that make this
requirement not practical:
1. A copy of the approved General Permit NCGO1 as well as the Certificate of Coverage.
2. Records of inspections made during the previous twelve months. The Contractor shall
record the required observations on the Inspection Record Form included in this
Contract. Use of electronically-available records in lieu of the required paper copies will
be allowed if shown to provide equal access and utility as the hard-copy records.
C. All inspection records for the project shall be given to the Owner after completion of the
project.
3.12 REPORTING.
A. The Contractor shall inform the Owner or Engineer of the following as soon as practical:
1. Visible sediment deposited in a stream or wetland.
2. Oil spills if:
a. They are 25 gallons or more
b. They are less than 25 gallons but cannot be cleaned up within 24 hours
c. They cause sheen on surface waters (regardless of volume)
d. They are within 100 feet of surface waters(regardless of volume)
3. Releases of hazardous substances in excess of reportable quantities under Section 311
of the Clean Water Act or Section 102 of CERCLA or G.S. 143-215.85.
4. Anticipated bypasses and unanticipated bypasses.
5. Noncompliance with the conditions of General Permit NCGO1 that may endanger health
or the environment.
3.13 ADDITIONAL CONTRACTOR RESPONSIBILITY.
A. Borrow and/or spoil areas either at the project site or at other locations shall be subject to
all erosion control requirements contained herein. Excavated soils shall be piled in such a
manner to prevent eroding or otherwise washing.
B. The Contractor shall periodically check all erosion control devices in place to determine the
need for cleaning or otherwise removing silt build-up to restore them to their original
condition. Silt build-up shall be periodically removed as needed. Erosion control measures
shall be maintained in good order throughout the project and until there removal is directed.
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The Contractor, upon completion of this project, shall leave intact those temporary erosion
control devices deemed necessary by the Engineer for future protection.
C. These requirements are not meant to be all inclusive, but rather to make the Contractor
aware of minimum requirements. Failure of the Contractor to comply with any of the
preceding requirements will result in the Contractor receiving formal notification to initiate
such measures. If compliance is not forthcoming within 48 hours of receipt of same, the
Engineer will suspend work pursuant to the North Carolina Sedimentation Pollution Control
Act.
END OF SECTION 01 57 13
1922.052 TWO RIVERS UTILITIES
09/14/20 01 57 13-10 CCWWTP BAR SCREEN

SECTION 0166 00—PRODUCT STORAGE AND HANDLING REQUIREMENTS
PART 1—GENERAL
1.01 STORAGE AND MAINTENANCE OF EQUIPMENT.
A. Equipment containing moving parts or bearings which, in the opinion of the Engineer, may
be damaged by exposure or improper storage shall be protected as set forth herein.
B. The Contractor shall require the manufacturers of all equipment to be incorporated into the
work of these Contracts to supply detailed instructions on storage and maintenance of their
equipment required to maintain the equipment in good condition until it is placed in
operation. These instructions shall be subject to the approval of the Engineer, and shall be
strictly enforced. Such approval shall not relieve the Contractor of his obligation.
C. Equipment which is intended for outdoor installation may be stored outside, in accordance
with the manufacturer's instructions, for a period not to exceed thirty days before
installation. If delivery schedules require a longer period of storage before installation, the
equipment shall be stored in heated and ventilated warehouses, approved by the Engineer.
D. Equipment intended for indoor installation shall be stored in heated and ventilated
warehouses or in heated and ventilated enclosures on the site of the work approved by the
Engineer.
E. Equipment which is installed more than seven days prior to being placed in operation will be
protected in strict accordance with the manufacturer's or the Engineer's recommendations
or requirements. Such protection, where dictated, shall consist of complete airtight
encapsulation with desiccants.
F. Equipment damaged by improper storage procedures or improper protection after
installation prior to acceptance by the Owner shall be replaced by the Contractor at no cost
to the Owner.
PART 2—PRODUCTS
This section not used.
PART 3—EXECUTION
This section not used.
END OF SECTION 01 66 00
1922.052 TWO RIVERS UTILITIES
10/29/20 01 66 00-1 CCW WTP BAR SCREEN

SECTION 0173 00- EXECUTION
PART 1—GENERAL
1.01 DEFINITIONS.
A. The designation "invert" or "grade line" for pipes and structures mentioned in the Contract
Documents refers to the inside bottom of the pipe or the surface upon which the sewage or
water flows along the center line of the completed work. "Subgrade" is the bottom line or
surface to which the excavations are necessarily made for the purpose of building the work
in accordance with the Drawings, not including the additional depth of excavation required
for any special foundation that may be ordered. "Elevation" or an abbreviation of it shall
mean the distance in feet above the datum established for the Project.
B. All work shall be constructed in accordance with the lines, grades, and elevations shown on
the Drawings or as given by the Engineer in the field. The Contractor shall be fully responsible
for maintaining alignment and grade.
1.02 CONTROL GIVEN BY ENGINEER.
A. The lines, grades, and elevations for control of the work will be given by the Engineer.
Principal controlling points and base lines for locating the principal component parts of the
work together with a suitable number of bench marks adjacent to the work will be provided
more specifically as follows:
1. Sanitary and Storm Sewers-The center line of the sewer at manholes, wet wells, valve
vaults, catch basins, inlets, and cleanouts.
2. Water Mains and Force Mains - None except for base lines and bench marks as shown
on the drawings.
3. Treatment Plants, Structures, and Buildings -A base line and a minimum of two bench
marks.
4. Tunnels- Principal controlling points above ground only.
B. From the information provided by the Engineer,the Contractor shall verify benchmarks and
develop and make all detail surveys needed for construction.
C. The Contractor shall set and maintain all intermediate points, lines, grades, and elevations
and provide slope stakes, offset stakes, batter boards, stakes for pipe locations, and other
such items as required, all at his own expense. The Contractor shall prepare grade letters
and cut sheets for sewer lines, and shall furnish copies to the Engineer in advance of
construction of the sections of sewer for which such grade letters and cut sheets are
prepared. The accuracy of the Contractor's survey and paperwork is the sole responsibility
of the Contractor, and the furnishing of data to the Engineer does not constitute a transferal
of responsibility for checking.
D. The Engineer, however, reserves the right to inspect or check any of the Contractor's survey
and paperwork, and the Contractor shall not claim added compensation for any delay
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occasioned by the Engineer exercising this right, nor for any corrective work which may be
required as the result of the Contractor's errors.
E. The Contractor shall provide all stakes, grade boards, cleats, nails, and such other materials
and give such assistance to the Engineer as may be required. He shall keep the Engineer
informed in writing a reasonable time in advance of the times and places at which he intends
to do work, in order that lines, grades and elevations may be furnished and necessary
measurements for record and payment may be made with the minimum of inconvenience
to the Engineer or delay to the Contractor.
F. No special compensation shall be made for the cost to the Contractor, of any of the work or
delay occasioned by giving lines, grades and elevations or making other necessary
measurements, or by inspection; but such costs shall be considered as having been included
in the prices stipulated for doing the work called for in the Contract.
1.03 MATERIALS AND WORKMANSHIP.
A. All items of equipment and materials of like type,furnished under one Contract, shall be the
product of one manufacturer, unless otherwise specified.
B. All materials furnished or incorporated in the work shall be new, unused, current year model,
of the best quality, especially adapted for the service required, and whenever the
characteristics of any material are not particularly specified, such material shall be used as is
customary in first class work of a nature for which the material is employed.
C. All materials and workmanship shall be subject to inspection, examination and tests by the
Engineer and other representatives of the Owner, at any and all times during manufacture
or construction and at any and all places where such manufacture or construction are carried
on.
D. The selection of bureaus, laboratories, and agencies for the inspection and tests of supplies,
materials, or equipment shall be subject to the approval of the Engineer. Satisfactory
documentary evidence that the material has passed the required inspection and tests must
be furnished to the Engineer by the Contractor prior to the incorporation of the material in
the work.
1.04 TOOLS,ACCESSORIES,AND SPARE PARTS.
A. The Contractor shall, unless otherwise stated, furnish with each type, kind of size of
equipment, one complete set of suitably marked high-grade tools and appliances that may
be needed to adjust, operate, maintain or repair the equipment. Such tools and appliances
shall be furnished in approved painted steel cases properly labeled and equipped with good
grade cylinder locks and duplicate keys.
B. Each piece of equipment shall be provided with a substantial name plate, securely fastened
in place and clearly inscribed with the manufacturer's name, year of manufacturer, and
principal rating data.
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C. Spare parts for each item of equipment will be kept separate and tagged to identify the
specific item of equipment to which they belong. Spare parts shall be packaged so as to
preclude damage from handling and storage. Small items of spare parts will be bagged or
packaged with identifying labels on the outside.
1.05 EQUIPMENT INSTALLATION.
A. Equipment shall be erected in a neat and workmanlike manner on the foundations at the
locations and elevations shown on the Drawings unless directed otherwise by the Engineer
during installation. Substantial templates and working drawings for installation shall be
furnished.
B. All equipment shall be correctly aligned, leveled and adjusted for satisfactory operation and
shall be installed so that proper and necessary connections can be made readily between the
various units. Proper alignment shall be confirmed in the presence of the Engineer utilizing
high quality test apparatus provided by the Contractor. Test apparatus shall include
machinist levels, laser or micrometer alignment tools or other tools, deemed necessary by
the Engineer,to confirm alignment.
C. The Contractor shall have on hand sufficient proper equipment and machinery of ample
capacity to facilitate the work and to handle all emergencies normally encountered in work
of this character.
D. The Contractor shall have sufficient and qualified work force for the installation of
equipment. Process equipment, pumping units and other rotating or vibration producing
equipment shall be installed only by millwrights properly trained and experienced in that
type work. If, in the opinion of the Engineer, the work force providing installation is not
sufficiently qualified, the Engineer shall notify the Contractor who shall then provide
sufficiently qualified personnel, either of his own forces or from other sources at no
additional cost to the Owner.
E. The Contractor shall furnish, install and protect all necessary guides, track rails, bearing
plates,anchor and attachment bolts and all other appurtenances needed for the installation
of the devices included in the equipment specified. Anchor bolts shall be made of ample size
and strength for the purpose intended. Anchor bolts shall be cast in place or set in high
quality epoxy as indicated on the drawings or otherwise specified. Expansion anchors will
not be permitted. Unless otherwise specified anchor bolts shall be stainless steel.
F. Equipment bearing on plates,anchors or other supports that will be embedded in grout shall
be inspected by the Engineer after installation of the equipment and prior to placement of
any grout. Bearing and base plates to be grouted in place shall be properly aligned using
removal jack bolts. The use of jam nuts" or other permanently embedded items will not be
permitted.
G. The Contractor shall furnish all oils and greases for initial operation and shall give to the
Engineer a list of the lubricants used on each item of equipment. Insofar as possible, all
lubricants shall be obtained from one manufacturer, approved by the Owner. Each item of
equipment shall be tagged to show the date lubricated and the name and type of lubricant
used.
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H. All mechanical and electrical equipment shall be checked for correctness of installation and
tested by a qualified representative of the manufacturer. Testing shall include running tests,
vibration analysis,electrical readings and other evaluations as required by the Engineer. The
manufacturer shall certify in writing to the Engineer that the equipment was installed
according to his specification and shall provide a written summary of the operating
characteristics. Where multiple manufacturers have supplied components for a piece of
equipment the manufacturer that assembled the components shall supply the certification.
1.06 OPERATING INSTRUCTIONS,TRAINING AND MANUALS.
A. The Contractor shall furnish the services of qualified manufacturer's representatives to
instruct designated employees of the Owner in the operation and care of all equipment. All
training activities shall be scheduled with the Engineer. The level of instruction provided
shall be sufficient for the employees of the Owner to operate and maintain the equipment
in accordance with the manufacturer's recommendations and industry standard practice. If,
in the opinion of the Engineer, additional training by the manufacturer is needed to meet
these requirements, it shall be provided by the Contractor at no additional cost to the Owner.
B. During the warranty period and generally not less the 6 months following final acceptance of
the work, the Contractor shall furnish the services of qualified manufacturer's
representatives to provide follow-up instruction and answer questions related to proper
operation and maintenance of the equipment. These services shall be provided at no
additional cost to the Owner.
C. The Contractor shall also furnish and deliver to the Engineer five complete sets of
instructions, bulletins, diagrams, and other data and information required for the proper
operation and maintenance of the equipment,including ordering of spare parts.Additionally,
the Contractor shall provide these materials in a single PDF on a CD.These operating manuals
shall be furnished to the Engineer at such time as the equipment is delivered and shall include
references to models and serial numbers of equipment furnished, assembly drawings,
lubrication instructions and service recommendations. Such data shall be bound in booklet
form for easy reference.
1.07 LUBRICATION CHART.
A. The Contractor shall furnish the Owner a lubrication chart for all equipment furnished and/or
installed by him. The chart shall include the following for each item of equipment:
1. Name of the item
2. Location of the item
3. Each point of lubrication on the item
4. For each point of lubrication, the identification of the lubricant recommended and the
recommended frequency of lubrication.
B. The information on the chart shall be developed from manufacturer's printed data or from
the manufacturer's specific recommendations.
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C. The identification of the lubricant by manufacturer's name and product identification
number (such as Mobil X421) shall be furnished. The name of the manufacturer to be used
will be furnished to the Contractor by the Owner.
1.08 SLEEVES, INSERTS, CHASES,AND OPENINGS.
A. The Contractor shall provide all openings, chases, etc., in his work to fit his own work and
that of the other Contractors. All openings shown on the Contract Drawings, or reasonably
implied thereby, as confirmed or modified by shop, setting or erection drawings approved
by the Engineer shall be provided by the Contractor.
B. Where pipes or conduits pass through slabs or walls, the sleeves or opening forms shall be
provided by the installer of the pipes or conduits but shall be placed by the Contractor as
directed by the installer of the pipes or conduits. Where hanger inserts and similar items are
required, they shall be furnished by the installer of the pipe or other equipment requiring
the hangers but shall be placed by the Contractor as directed by the installer of the pipes or
conduits.
C. Any cost caused by defective, ill-timed, or mislocated work shall be borne by the party
responsible thereof.
PART 2—PRODUCTS
This section not used.
PART 3—EXECUTION
This section not used.
END OF SECTION 01 73 00
1922.052 TWO RIVERS UTILITIES
10/29/20 0173 00-5 CCWWTP BAR SCREEN

DIVISION 02—DEMOLITION AND STRUCTURE MOVING
SECTION 02 41 16—STRUCTURE DEMOLITION
PART 1-GENERAL
1.01 GENERAL.
n disposal of anyexistingstructures, buildingmaterials,
This section covers the removal and
P
paving, piping and equipment not required for the operation of the facilities as indicated on
the Contract Drawings, as specified hereinafter, or as required by the Engineer. The
Contractor shall furnish all labor, materials, and equipment to remove and dispose of all
material designated to be removed.
B. Under no circumstances shall any demolition of the existing facilities or interruption of the
operation of the existing facilities be allowed without prior written approval of the Engineer.
PART 2-PRODUCTS
2.01 MATERIALS.
A. All materials, except as otherwise noted, from the demolition work shall, when released by
the Engineer, become the Contractor's property for disposition in any manner not contrary
to the contract requirements and shall be removed immediately from the site to the
Contractor's own place of disposal.
B. The electrical Contractor or Subcontractor shall de-energize all power equipment prior to
removal by any contract. Any electric panels or equipment which are to be retained shall be
relocated or isolated by the electrical Contractor prior to the removal of the equipment.
2.02 FACILITIES TO BE REMOVED.
A. The Contractor shall partially or completely demolish all existing structures, encumbrances,
and the like encountered in the way of new work, all as shown on the drawings, described
herein, and as required for proper performance of the work.
B. Equipment to be removed is in most cases shown on the drawings. The location and extent
of these facilities is not guaranteed. Each contractor shall field verify locations and elevations
of existing piping, structures, and utilities and shall proceed with care in the construction of
new work in order to prevent damage to any existing facilities to be retained and to prevent
interruption of the temporary operations.
C. Any structures, equipment, piping and appurtenances, damaged or removed by the
contractor without authorization by the Engineer, which are necessary for the operation of
the renovated Facilities shall be repaired or replaced to the satisfaction of the Engineer at no
cost to the Owner.
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PART 3 -EXECUTION
3.01 REMOVAL AND REHABILITATION.
A. Certain items of demolition are set out by the drawings and specifications; however, the
demolition work shall not be confined to those items but shall include all such work required
to complete the project.
B. Existing construction shall be removed and replaced in a careful manner so that piping and
facilities are undamaged and so that adjacent construction, piping, or facilities to be left in
place are not cracked or otherwise damaged. The Contractor will be held responsible for any
damage thereto because of his operations. Temporary supports shall be used where and as
required for the support of existing facilities until the new installation or construction is
completed. Holes and damage resulting from removal or construction operations shall be
filled, reconstructed, repaired and finished to match and conform to adjacent surfaces and
construction at the expense of the Contractor.
C. Piping and equipment shall be disconnected, dismantled and removed as required and in
such manner as to minimize disturbing or damaging adjacent construction. At any point or
location where new work is to be connected or installed, the removal of existing work shall
be done so as to facilitate the new installation work to the maximum possible extent.
D. Removal of any item of equipment or facility shall include removal of all accessories, piping,
wiring, supports, associated electrical starter and devices, metal and concrete bases, and all
other appurtenances unless specifically indicated or noted to remain. Piping shall be
removed together with supports, anchors, hangers, valves and fittings.
E. Care shall be exercised in carrying out all cutting and demolition operations. All existing areas
and surfaces that are to be finally exposed and are damaged as a result of these operations
shall be patched and repaired to match adjacent construction, finish, color and texture. All
patching and repair work shall be done by skilled craftsmen of the trade involved, with
materials and finishes as required.
3.02 DISPOSITION OF REMOVED EQUIPMENT AND MATERIALS.
A. The Contractor shall remove all equipment and accessories in a workmanlike manner and
shall take all necessary precautions to avoid damaging existing equipment, piping, and
structures which are to be retained. Damages shall be repaired or replaced at the expense
of the Contractor except as noted on the Drawings or directed by the Engineer.
B. All existing piping,valves and mechanical items removed during demolition and construction
will become the property of the Contractor.
C. All debris from demolition and removal operations such as concrete, masonry, asphalt
pavement and other non-salvageable building materials shall be the property of the
Contractor and shall be removed from the site immediately.
END OF SECTION 02 41 16
1922.052 TWO RIVERS UTILITIES
09/14/20 02 41 16-2 CCW WTP BAR SCREEN

DIVISION 05— METALS
SECTION 05 50 00— METAL FABRICATIONS
PART 1—GENERAL
1.01 GENERAL.
A. This section includes all miscellaneous metal work not specified under other sections and
includes such items as miscellaneous bearing plates, frames of structural shapes, grating,
stairs, handrails, nosings,floor plates and other fabricated items, angles, channels, brackets,
clips, hangers and connections necessary for the completion of the work.
B. Shop drawings of all work specified herein shall be submitted to the Engineer for approval.
shall meet the requirements of the latest edition of the followingminimum
C. All materials q
standards unless designated elsewhere:
Aluminum Structural Shapes ASTM-B308
Aluminum Extrusions ASTM-B-221
Aluminum Sheets and Plates ASTM-B209
Aluminum Castings ASTM-B-26
Structural Steel ASTM A-36
Miscellaneous Steel Mild Steel
Bolts & Nuts ASTM A-307
High Strength Bolts ASTM A-325
Structural Steel Tubes ASTM A-500, Grade B
Structural Steel Pipe ASTM A-53, Grade B
Gray Iron Castings ASTM A-48
Welding Rods AWS Specifications for Arc Welding
Stainless Steel ASTM A-276, Type 304, Condition A
1.02 FIELD MEASUREMENTS.
A. Measurements shall be verified in the field for all work fabricated to fit field conditions.
Adjoining work shall be examined before work is started. Necessary corrective work shall be
done to adjoining work to insure a proper fit.
B. Where fabricated stairs must fit new or existing construction, verify dimensions in the field
prior to fabrication to assure ft.
PART 2—PRODUCTS
2.01 SHOP AND FIELD FINISHES.
A. All ferrous metal, except stainless steel, galvanized surfaces and castings, shall be properly
cleaned and shall be given one shop coat of a high quality primer compatible with the finish
paint. Metal work to be encased in concrete shall be left unpainted unless specified or noted
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09/14/20 05 50 00-1 CCWWTP BAR SCREEN

otherwise. Where hot-dip galvanized or zinc-coated metal is specified or shown, it shall not
be shop primed.
B. Castings that are to be left unpainted shall be cleaned and coated with a coal-tar-pitch
varnish. Shop paint at piece marks shall not be omitted.
C. Field abrasions, welds and other places where shop coat has been broken shall be painted in
the field with the same paint as that used for the shop coat.
D. Hot dip galvanizing shall conform to ASTM A525 and shall have a minimum coating as
specified in designation G165 unless otherwise noted.
2.02 FRAMES AND STRUCTURAL SHAPES.
A. Frames of steel structural shapes shall be provided for floor openings and stairs where shown
on the Plans. All corners shall be mitered, welded and ground smooth. Sizes shall be as
shown on the Plans. Frames embedded in concrete slabs shall be provided with 1/8" x 1 " x
8" strap anchors at 18 inches on center. Frames which are fastened to concrete or masonry
walls or to structural framing members shall be as detailed on the Plans.
2.03 EXPANSION ANCHORS.
A. All expansion anchors shall be high quality stainless steel unless otherwise specified.
2.04 STAIRS.
A. Stairs shall be aluminum construction with aluminum grating treads with abrasive nosings,
and complete with double stair rails on newels, single wall rails on brackets and all
connectors, reinforcement,struts, brackets, headers,connectors,etc., necessary to fabricate
and erect stairs to conform with lines, dimensions, elevations, and details indicated on the
drawings. Stairs shall meet the North Carolina State Building Code of General Construction,
but shall support a minimum live load of 100 psf.
B. Stairs may be shop and field fabricated or pre-fabricated and pre-erected at Contractor's
option, installed to conform with pertinent codes and ordinances, with NAAMM publication
"Metal Stairs" and with the following general specification: AS MINIMUM STANDARDS,
unless otherwise shown on the drawings.
STRINGS Aluminum Channels
TREAD PANS Aluminum Grating
NEWELS Steel Pipe
WALL RAIL BRACKETS Malleable Iron
RAILS 1-1/2" aluminum pipe with end caps and return rails at
top floor platforms
CONNECTORS Vandal proof and bolted or seated into concrete walls
CONSRUCTION Arc welded and ground smooth where exposed
SHOP FINISH Anodized
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2.05 HANDRAILS.
A. All handrails shall be fabricated of aluminum unless otherwise specified.
B. Aluminum handrail systems shall be fabricated from 1.5 inch diameter stock, unless
otherwise noted. Handrails shall be of welded construction and ground smooth where
exposed and polished clean. Aluminum handrails shall be anodized.
C. All handrail systems regardless of material or type shall be securely anchored with insert
sleeves, floor or wall brackets, fabricated from like material or as shown or specified.
Brackets shall be applied with drilled in epoxy set or expansion anchor bolts of stainless steel.
No hammered or impact anchors shall be permitted. Handrails shall be capable of
withstanding lateral loads in excess of that required by local, State, and Federal safety
regulations and shall meet applicable requirements for toe plates and safety appurtenances.
The handrail manufacturer shall demonstrate adequate structural performance of the
handrail system by submitting to the Engineer design notes and a certified statement
attested to the handrail systems compliance with applicable codes and regulations. Posts
shall be provided at sufficient intervals to provide the required structural strength but in no
case shall post be farther apart than 8 feet, 0 inches. Adequate expansion fittings shall be
provided to prevent damage or deformation from thermal expansion.
2.06 GRATINGS.
A. All grating and frames shall be furnished and installed as required and where shown on the
Plans. Unless otherwise noted, grating and frames shall be aluminum.
B. Gratings shall be pressure lock or welded type with straight bearing bars and crossed bars.
Unless otherwise noted, bearing bars shall be a minimum of 3/16 inch thick by 1 inch deep
and shall be spaced not more than 1-3/16 inches on center. Cross bars shall be a minimum
of 1/8 inch thick by 5/8 inch deep spaced not more than 7 inches on center. Cross bars shall
be located not more than 1-1/4 inches from the ends of the bearing bars.
C. The edges of all sections shall be edge banded on all four sides. Edge banding shall be
connected to grating bars and shall be the same depth as the bearing bars.
D. Openings and holes shall be provided where required for the passage of pipes,gate stems or
any other purpose. All openings shall be edge banded the full depth of the bearing bars.
Edge banding shall be fastened to all grating bars. Provide reinforcing as required around
openings and holes so that capacity of deck is not reduced. Gratings shall be accurately
fabricated, free from warps, twists, or other defects which affect the appearance and
serviceability of the grating. The tops of the cross bars and bearing bars shall be in the same
plane.
E. Angle frames for grating shall be stainless steel. Frames shall be securely anchored into
concrete and shall be set so that the top of the grating is flush with the top of the concrete.
Where angles are fastened to concrete they shall be anchored with stainless steel anchor
bolts.
F. Floor gratings shall be erected in place on supporting angles, as shown on the Plans,and shall
have a full and uniform bearing on the supports, without rocking. Wedges or shimming
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devices will not be permitted. Grating panels shall be locked securely in place with
removable hold-down stainless steel fastenings unless shown otherwise on the Plans.
G. All gratings shall be so designed and fabricated that not more than 1/4-inch clearance shall
exist between gratings and frames.
H. Gratings shall be designed so that each section shall be readily removable and replaceable,
except where noted on the Plans.Adjacent sections shall neatly fit together with transverse
members forming an uninterrupted straight line.
I. Where the size is not shown on the Plans, all gratings shall be designed for a minimum live
load of 200 pounds per square foot or a concentrated load of 300 pounds at the center of
the span, whichever produces the maximum stress condition. In no case shall the design
load for the gratings be less than the design live load for the floor in which the grating is
placed. In general, no section of the grating shall exceed 80 pounds in weight. Maximum
deflection under full load shall not exceed 1/360 of the span.
J. Verify all dimensions in the field prior to fabrication.
K. Stair treads shall satisfy the same requirements as for grating and shall have an abrasive non-
slip nosing.
PART 3—EXECUTION
3.01 FABRICATION AND INSTALLATION.
A. Fabrication and installation shall be in accordance with the latest edition of the following
standard references:
1. AISC "Specification for the Design, Fabrication and Erection of Structural Steel for
Buildings" and "Code of Standard Practice for Steel Buildings and Bridges".
2. National Association of Ornamental Metal Manufacturers Handbook.
B. All metal work shall have smooth finished surfaces. Joints shall be rigid and adjoining welded
joints shall be continuously welded unless otherwise specified or shown. The face of welds
shall be dressed flush and smooth.
C. Wherever possible, welding shall be on the unexposed side in order to prevent pitting or
discoloration. Exposed joints shall be close fitting and jointed where least conspicuous.
D. Connections and accessories shall be of sufficient strength to safely withstand stresses and
strains to which they will be subjected. Steel accessories and connections to steel or cast
iron shall be steel unless otherwise specified.
E. Fastenings shall be concealed where practicable. Threaded connections shall be made so
that the threads are concealed by fittings. Connections and accessories for exterior work
shall bega
lvanized unless otherwise specified or indicated.
p
F. Joints exposed to weather shall be formed to exclude water. Holes and connections for the
work of other trades shall be provided where required.
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G. Work to be built in with masonry shall be of the form required for anchorage or shall be
provided with suitable anchors. In general, anchorage to hollow masonry shall be with
masonry strap anchors or toggle bolts and anchorage to concrete or solid masonry shall be
with strap anchors or metal expansion bolts unless otherwise shown or specified. Fastening
to wood or plastic plugs in masonry will not be permitted.
H. All supporting members, fastenings, hangers, bracing, brackets, straps, bolts, clip angles and
other items required to connect the work rigidly and properly to the masonry, concrete,
structural steel or other construction shall be provided.
3.02 CLEANING AND PROTECTION.
A. During and after erection, suitable precautionary methods shall be employed to adequately
protect exposed surfaces of installed items from damage due to the installation of other
work, damage from lime, acid, cement or other harmful compounds.
END OF SECTION 05 50 00
1922.052 TWO RIVERS UTILITIES
09/14/20 05 50 00-5 CCWWTP BAR SCREEN

DIVISION 09- FINISHES
SECTION 09 90 00— FIELD COATING
PART 1—GENERAL
1.01 GENERAL.
A. This section includes preparation of surface to be painted and all field painting. Work to be
done shall be as described therein and shown on Contract Drawings.
1.02 DELIVERY AND STORAGE.
A. All materials to be used in the work, including paints, stains, varnishes, thinners, etc., shall
be delivered to the site in their original unbroken containers. All ingredients shall be
prepared, packed, labeled, and guaranteed by the manufacturer.
B. Coating materials shall be stored at the site in a place and in the manner approved by the
Engineer. Coating storage space shall be kept clean at all times and every precaution shall
be taken to avoid fire hazards.
PART 2—PRODUCTS
2.01 SELECTION OF COLORS AND SAMPLES.
A. Color chips shall be submitted to the Engineer for color selection. From time to time, as the
Engineer may direct, analyses paint and oil or pigment samples may be made and any
samples that are found not complying with these specifications may be cause for rejection
of the paint. The cost of the analyses and the cost of supplying paint that complies with these
specifications shall be at the Contractor's expense.
2.02 PAINTING SCHEDULES.
A. Schedules of coating formulae,the number of coats of paint and the mill thickness of coating
to be applied to the various surfaces are specified below. The number of coats shall be not
less than the number scheduled, and the thickness of the coats shall not be less than the
thickness recommended by the manufacturer.Any defective work shall be corrected by the
Contractor at his own expense.
Surface Coat 1 Coat 2 Coat 3
Ferrous Metals A B B
Exposed Copper Tubing- 2 Coats Clear Varnish
Coating Sherwin Williams Product Thickness Mils, Dry
A- Polyamide Epoxy Macropoxy 646 4—6
B—Aliphatic Acrylic Polyurethane Hi-Solids Polyurethane 3—5
B. Coating product names and numbers listed herein are for Sherwin Williams Company and
are used to describe the general level of Quality and coating types. Other manufacturers
with equal products shall be permitted.
1922.052 TWO RIVERS UTILITIES
09/14/20 09 90 00-1 CCWWTP BAR SCREEN

PART 3—EXECUTION
3.01 PREPARATION OF SERVICES.
A. All surfaces to be painted shall be prepared as specified below and shall be dry before
painting:
1. Metal-All rust, loose scale,oil,grease,and dirt shall be removed by the use of approved
solvents, wire brushes or sanding.
B. Other surfaces shall be cleaned of dirt and debris and any scratches, cracks or other defects
shall be filled flush with adjacent surfaces and sanded smooth. Fillers used shall be of an
approved type and shall be dry before painting.
C. All field surfaces prepared for field painting shall have the Engineer's approval before any
painting is done.
3.02 REPAIRS TO SHOP PAINTING.
A. Surfaces that have been shop painted and have been damaged during transit or installation,
or where the shop coat or coats of paint have deteriorated, shall be cleaned and retouched
before any successive painting is done on them in the field. Surfaces with enamel finishes
that have been damaged in transit or during installation, shall be retouched to match the
original finish to the Engineer's satisfaction.
3.03 FIELD PAINTING.
A. All field painting shall be under the direct and complete control of the Engineer and only
skilled painters shall be used in the work. All paint shall be applied in accordance with the
manufacturer's recommendations and as directed. Film thickness of applied paint shall be
at least equal to the value determined by the number of coats multiplied by the thickness
per coat scheduled herein for specific paint products. If other paint products are approved,
the thickness per coat shall be as determined by the Engineer.A film thickness indicator will
be used by the Engineer to determine compliance with the specifications. When field coats
of paint are to be applied to shop painted or shop primed surfaces, care shall be taken to
insure that only compatible paints are used.
B. All paints shall be thoroughly stirred before being taken from the containers and all ready-
mixed paint shall be applied exactly as received from the manufacturer and no thinner or
drier shall be added except as specified, permitted or directed by the Engineer.
C. Successive coats of paint shall be tinted so as to make each coat easily distinguishable from
each other with the final undercoat tinted to the approximate shade of the finished coat.
D. All paint shall be at room temperature before applying and no painting shall be done when
the temperature is below 50 degrees Fahrenheit, or in dust laden air, or when rain or snow
is falling, or during fog or until all traces of moisture have completely disappeared from the
surfaces to be painted.
E. Finished surfaces shall not show brush marks or other irregularities. Undercoats shall be
thoroughly and uniformly sanded with Number 00 sandpaper or equal to remove defects and
1922.052 TWO RIVERS UTILITIES
09/14/20 09 90 00-2 CCWWTP BAR SCREEN

provide a smooth even surface. Top and bottom edges of doors shall be painted and all
exterior trim shall be back primed before installation.
F. Painting shall be continuous and shall be accomplished in an orderly manner so as to facilitate
inspection. Materials subject to weathering shall be prime coated as quickly as possible.
Surfaces of exposed members that will be inaccessible after erection shall be cleaned and
painted before erection.
G. All materials shall be brush painted unless spray painting is specifically approved by the
Engineer.
H. All surfaces to be painted as well as the atmosphere in which painting is to be done shall be
kept warm and dry by heating and ventilating if necessary until each coat of paint has
hardened. Any defective paint shall be scraped off and repainted in accordance with the
Engineer's directions.
I. Before final acceptance of the work all damaged surfaces of paint shall be cleaned and
repainted as directed by the Engineer.
J. In general, aluminum, stainless steel, copper, and bronze work shall not be field painted.
Care shall be taken not to paint shafts, grease fittings, nameplates, machined parts, sight
glasses, etc.
END OF SECTION 09 90 00
1922.052 TWO RIVERS UTILITIES
09/14/20 09 90 00-3 CCWWTP BAR SCREEN

1922.052 TWO RIVERS UTILITIES
09/14/20 1105 13-1 CCWWTP BAR SCREEN

DIVISION 11— EQUIPMENT
SECTION 1105 13—MOTOR REQUIREMENTS
PART 1—GENERAL
1.01 GENERAL.
A. Miscellaneous electric motors shall include squirrel cage polyphase motors rated 500
horsepower and less and all single phase motors.
B. Motors shall conform to the NEMA Standards for Motors and Generators Publication MG1.
Unless otherwise specified, motors shall be of a design suitable for full voltage starting.
PART 2—PRODUCTS
2.01 RATINGS AND DESIGN.
A. Motors shall be of adequate ratings to accelerate and drive their connected equipment at
their installed elevation without exceeding their nameplate ratings regardless of service
factor. Unless otherwise specified, or recommended by the equipment manufacturer and
approved by the Engineer, insulation shall be NEMA Class B or F. Motor ratings shall be
continuous and based on 40 degrees Centigrade ambient temperature. Service factor shall
be 1.15 and temperature rise shall comply with NEMA Standard MG1 unless otherwise
specified.
B. Unless otherwise shown or specified, motors rated one-half horsepower or more shall be 3-
phase, squirrel cage, induction motors designed for operation at 480 volts as shown or
required. Unless otherwise shown or specified, motors rated less than one-half horsepower
shall be single phase, 115 volt induction motors.
C. Unless otherwise specified, frequency shall be 60 Hertz and synchronous motor speeds shall
not exceed 1800 RPM.
D. Nameplates shall be furnished with all motors with markings in accordance with NEMA MG1.
Terminal boxes shall be of sufficient size to accommodate conduits and shall provide for the
field connection of an equipment grounding conductor included in the conduit. Rubber
gasketed terminal boxes shall be furnished with weather-protected and totally enclosed
motors. Motors used with belt drives shall have sliding bases to provide for belt take-up.
E. Terminal boxes for horizontal motors shall be located on the left hand side when viewing the
motor from the drive shaft ends, and shall be so designed that conduit entrance can be made
from above, below or either side of the terminal box.
2.02 THREE-PHASE MOTORS.
A. Except as otherwise specified or except as required by the dynamic characteristics of the
load, polyphase,squirrel cage motors shall be designed to withstand full-voltage starting and
shall have torque and locked rotor current characteristics as specified for NEMA Design B
Motors.
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B. Three phase motors one horsepower and larger shall be the energy efficient product of a
motor manufacturer that also produces a standard line of motors. The energy efficient
motors shall incorporate premium materials and designs which reduce motor losses
approximately 40%from standard motors.
C. Motor efficiency tests shall be performed in accordance with Method B of the Institute of
Electrical and Electronics Engineers Standard 112. Determination of motor efficiencies shall
comply with NEMA MG1-12.53a,and the nominal efficiency of each motor shall be displayed
on the motor nameplate in accordance with NEMA MG1-12.53b. Nominal efficiencies of
1800 rpm, open dripproof motors at full load shall equal or exceed those tabulated herein:
Horsepower Range Nominal Efficiency(%)
1-3 81.5
5-15 85.5
20-30 91.0
40-60 93.0
75-125 94.1
150 & above 94.5
2.03 SINGLE-PHASE MOTORS.
A. Single-phase fractional horsepower motors shall be capacitor type induction motors unless
otherwise approved by the Engineer. Shaded pole motors larger than one-fourth
horsepower will not be allowed. Auxiliary components necessary to provide required
starting characteristics including capacitors, resistors, and automatic switching devices shall
be furnished and mounted integrally. Unless motor starters with overload protection are
provided, the motors shall include manually-reset thermal overload protection.
2.04 MECHANICAL CONSTRUCTION.
A. Unless otherwise specified, electric motors shall be of the following types of construction
according to the degree of mechanical protection:
B. When located in areas designated as hazardous location, they shall be totally enclosed,
explosion-proof or dust-ignition- proof as specified.
C. When located outdoors,or elsewhere, if specified, they shall be totally enclosed, fan-cooled,
or weather protected as specified.
D. When specified, machines shall have encapsulated windings.
E. In all other cases, they shall be open, drip-proof machines, unless otherwise designated on
the Contract Drawings or herein.
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F. Motors rated 500 horsepower and less shall have the bearings of the grease lubricated anti-
friction type with conveniently located grease fittings.
G. Where of vertical shaft construction,the motors shall have adequate thrust bearings to carry
all motor loads and any other operating equipment loads. Where of horizontal shaft
construction and coupled to fluid pumps, the motors shall either have adequate thrust
bearings or they shall have the couplings end-play and rotor float coordinated to prevent
damage to rotor bearings.
H. Where vertical hollow shaft motors are specified,they shall be designed to carry the motors,
pumps and associated equipment full thrust. The motors shall be equipped with oil
lubricated anti-friction thrust bearings and lower grease lubricated radial guide bearings.
Motors shall have visual oil level indicators and sufficient oil shall be provided to fill the
motors plus any additional oil required for one refilling in a properly identified container.
I. Running fit adjustment shall be provided by means of a lockable nut at the top of the shaft.
J. Rotors shall be statically and dynamically balanced. Rotors shall have secondary bars of
heavy copper silver-brazed to one-piece end rings or they shall have rotor windings of one-
piece cast aluminum. Where applicable, rotors shall be constructed with integral fans.
K. Non-reversing ratchets shall be provided where specified on Contract Drawings or herein.
PART 3—EXECUTION
3.01 MANUFACTURE AND PERFORMANCE.
A. As far as possible, all motors furnished under one contract shall be of one manufacturer and
shall be manufactured in the United States. Suitable motor outline drawings together with
motor nameplate data and performance data shall be submitted to the Engineer for review
and approval. For motors rated 50 horsepower or more, guaranteed minimum values of
efficiency at power factor and 100%, 75%and 50% of full load shall also be submitted.
B. Motors shall operate without an undue noise or vibration and shall show no signs of phase
unbalance.
C. All motors shall have a shop machinery finish consisting of a rust-resisting priming coat and
a finish coat of paint.
END OF SECTION 11 05 13
1922.052 TWO RIVERS UTILITIES
09/14/20 1105 13-3 CCWWTP BAR SCREEN

DIVISION 26 - ELECTRICAL
SECTION 26 00 00—ELECTRICAL SYSTEMS
PART 1—GENERAL
1.01 EQUIPMENT AND MATERIALS.
A. Electrical equipment and materials shall be furnished and installed in accordance with the
latest IEEE, NFPA, UL, ANSI and NEMA Standards. All equipment and materials shall be new
and shall be listed by Underwriters Laboratories, Inc. in every instance where a standard for
listing has been established for the item involved. Samples shall be submitted upon request
to the Engineer for approval. Electrical equipment shall at all times during construction be
adequately protected against mechanical injury or damage by water. If any apparatus has
been damaged, such damage shall be made good by the Contractor at his own cost and
expense. If any apparatus has been subject to possible injury by water, it shall be thoroughly
dried and put through such special tests as will be directed by the Engineer, at the cost and
expense of the Contractor, or shall be replaced by the Contractor at his own expense.
1.02 RATINGS APPROXIMATE.
A. The ratings of motors and other electrically operated devices together with the size shown
for their branch circuit conductors and conduits are approximate only and are indicative of
the probable power requirements insofar as they can be determined in advance of the
purchase of equipment.
B. It shall be the responsibility of the Contractor to verify the exact rating of each item of
equipment before performing the work required under the Contract. Motor ratings are given
for determination of wire and equipment sizes only. The Contractor shall determine the
ratings of overload and other protective devices in accordance with motor nameplate or
other data furnished with the motors.
1.03 LOCATIONS APPROXIMATE.
A. The location of equipment, fixtures, outlets and similar devices shown on the Contract
Drawings are approximate only. The Contractor shall determine the exact locations of the
equipment, outlets, stub ups, sleeves, and similar items required for the coordination of
electrical work with the structural, architectural, mechanical or other work.
B. The Contractor shall submit to the Engineer for approval, shop drawings showing the
locations and arrangement of electrical work, including electrical equipment, details of
conduit and cable supports or other work required for the proper coordination of the various
trades.
1.04 DRAWINGS DIAGRAMMATIC.
A. Circuit diagrams shown are diagrammatic and functional only, and are not intended to show
exact circuit layouts, number of fittings, or other installation details. The Contractor shall
furnish all labor and materials necessary to install and place in satisfactory operation all
power, lighting and other electrical systems shown.
1922.052 TWO RIVERS UTILITIES
09/14/20 26 00 00-1 CCWWTP BAR SCREEN

B. Pushbutton stations, control devices, monitoring devices, actuators, etc. are required,
whether shown on plan drawings or on schematic drawings,or called for in the specifications.
Contractor shall provide all required conduit and wiring as required to properly install and
connect all such items, whether or not such conduit and wiring is specifically shown on the
drawings.
PART 2—PRODUCTS
This section not used.
PART 3—EXECUTION
3.01 INSTALLATION, INSPECTION AND TESTING.
A. All workmanship and materials shall be in accordance with the provisions of the National
Electric Code; the work shall be subject to inspection by the local authorities having
jurisdiction, and all work shall pass such inspection. The Contractor shall furnish to the
Engineer a certificate of compliance of the completed installation issued by the Inspection
Authority.
B. Wires and cables for power distribution feeders and branch circuits shall be tested for
insulation integrity after they are in place but before final connections have been made. For
systems operating at 600 volts or less,a 500 volt megger test shall be performed between all
conductors in the same raceway and between each conductor and the ground. For
conductors 250 kcmil and larger, a reading of 250,000 ohms is acceptable. For smaller
conductors, a reading of 500,000 ohms is acceptable. Grounding systems shall be tested for
continuity.
C. After final connections have been made, the equipment and controls shall be tested to
demonstrate capacity and performance.
D. If damage occurs during any of the test, the Contractor shall make repairs as approved by
the engineer without additional payment. The Contractor shall furnish all necessary testing
equipment and all tests shall be at the expense of the Contractor. All testing equipment and
methods shall be subject to the Engineer's approval.
3.02 FASTENING METHODS.
A. Acceptable fastening methods include wood screws on wood construction, toggle bolts on
hollow masonry,expansion bolts with lead anchors on brick or concrete,and machine screws
on metal surfaces. Explosive fasteners may be used in steel and concrete in accordance with
the manufacturer's recommendations. All fastenings and supports shall result in a
permanent and rigid installation except where a flexible or swivel arrangement is specifically
required. Wire, perforated metal strap, nails, and wooden plugs are not acceptable as
fastening material. In locations subject to wet or corrosive conditions, materials used for
supports and fasteners shall be suitable for the application. In particular, where equipment
is specified to be of stainless steel or other corrosion-resistant materials, all materials used
for supports and fasteners shall be equally corrosion-resistant.
1922.052 TWO RIVERS UTILITIES
09/14/20 26 00 00-2 CCWWTP BAR SCREEN

3.03 CONNECTIONS TO EQUIPMENT.
A. Connections shall be made to all equipment in accordance with the Contract Drawings,wiring
diagrams furnished by manufacturers and specific directions by the Engineer. The Contractor
shall be responsible for the accuracy of connection work. Any damage resulting from
erroneous connections shall be made good by the Contractor at his own expense.
END OF SECTION 26 00 00
1922.052 TWO RIVERS UTILITIES
09/14/20 26 00 00-3 CCWWTP BAR SCREEN

SECTION 26 05 19— LOW VOLTAGE ELECTRICAL POWER CONDUCTORS AND CABLES
PART 1-GENERAL
1.01 GENERAL.
A. This section shall include the wires and cables as shown, specified, or required for the
complete installation of power, lighting, control, and other systems of the work of the
Contract, operating at 600 volts or less.
B. Wires and cables shall be copper and shall be as manufactured by Southwire, Encore Wire
Corporation, Houston Wire & Cable, or approved equal. As far as possible, all wires and
cables of like type shall be the product of one manufacturer.
C. Samples of wires and cables shall be furnished at the request of the Engineer.
PART 2 - PRODUCTS
2.01 GENERAL WIRING.
A. Unless otherwise shown or specified, all power, lighting, and control circuits shall be wired
with industry-standard building wire, enclosed in raceway. All conductors shall be of
stranded copper.
B. Insulated conductors shall be legibly marked along their entire length indicating AWG and
insulation type. Feeder conductors 250 Kcmil and larger shall have insulation type XHHW-2.
All other conductors for general applications shall be type XHHW-2 orTHHN/THWN-2,except
where another type is required due to heat or other conditions.
C. Lighting and receptacle branch circuits with 20 amp overcurrent protection shall be wired
with conductors not smaller than#12 AWG.Where runs exceed 50 feet from the panel board
to the first outlet, conductors not smaller than#10 AWG or of the size shown on the Contract
Drawings shall be used.
D. Conductors#14 AWG and smaller shall not be used except for control and signal circuits and
then only when specifically indicated on the drawings or permitted by the Engineer in writing.
E. All conductors shall be color-coded. For 277/480 volt systems, colors shall be brown (phase
A), orange (phase B), yellow (phase C), and gray (neutral). For 120/208 volt systems colors
shall be black, red, blue, and white. Grounding conductors shall be green. Switch legs shall
be the same color as the circuit conductor. Phase sequence shall be A-B-C from left to right,
top to bottom, and front to rear. Conductors #8 AWG and smaller shall be color coded in
manufacture. Larger conductors shall be color coded using vinyl tape of proper colors at
terminations.
F. Joints in conductors#10 AWG and smaller may be made using twist-on insulated spring-steel
connectors(wirenuts).Joints in larger conductors shall be made using suitable lug assemblies
or distribution blocks with insulated bases and covers. Split bolts are not permitted.
G. All conductors in pull boxes, junction boxes, equipment cabinets, etc. shall be labelled for
identification (eg. panel and circuit number). Use machine-printed labels in plastic sleeves.
1922.052 TWO RIVERS UTILITIES
09/14/20 26 05 19-1 CCWWTP BAR SCREEN

H. All conductors shall be carefully handled to avoid kinks or damage to insulation. Lubricants
shall not be used to assist in pulling conductors into conduits, unless approved for this
purpose as non-damaging to insulation. No splicing or connections shall be made except in
junction boxes. Splices and connections shall be made with approved lugs and connectors
and insulation equal to that of the connected conductors.
2.02 CONTROL CABLES.
A. Multi-conductor control cables shall be provided where shown on the Contract Drawings. At
the option of the Contractor,control cables may also be used where separate control circuits,
having a number of conductors greater than 3, are shown on the Contract Drawings. Control
cables shall be of stranded copper with PVC insulation and sheath. Labeled terminal strips
shall be provided for all connections to conductors in control cables. Terminal strips for
conductors #18AWG or larger shall be barrier-type with screw terminals. Twisted Shielded
Pair Cables shall be Belden 85231 or equal. Cables shall not be spliced, and shall be
connected to terminal strips only. Spare cables shall be coiled neatly for future use by the
Owner.
B. All control circuit conductors connected to terminal boards shall be coded with the number
or letter and number designation, matching the coding of the terminal boards. Use machine-
printed labels in plastic sleeves.
PART 3 -EXECUTION
This section is not used.
END OF SECTION 26 05 19
1922.052 TWO RIVERS UTILITIES
09/14/20 26 05 19-2 CCWWTP BAR SCREEN

SECTION 26 05 26—GROUNDING AND BONDING FOR ELECTRICAL SYSTEMS
PART 1—GENERAL
1.01 GENERAL.
A. This section shall include the system and equipment grounding and the grounding grid where
shown on the Contract Drawings. Grounding systems are intended to protect personnel and
equipment from abnormal over-voltages and the effects of ground faults, and to insure
proper operation of overcurrent protective devices. Grounding grid conductors shall be
placed as shown prior to the backfill of structures unless otherwise specified.Service ground
connections shall be made to a water main and from there to the grounding grid where a
grounding grid is shown.
PART 2—PRODUCTS
2.01 SYSTEM AND EQUIPMENT GROUNDING.
A. All equipment enclosures, motor and transformer frames, neutral transformer taps, conduit
systems,cable armor,exposed structural steel and similar items shall be grounded effectively
and in strict accordance with Article 250 of the National Electric Code.
B. All grounding conductors shall be of copper. A green insulated copped grounding conductor
shall be included in every conduit or raceway containing a feeder or circuit operating at 50
volts or more. The sizes of grounding conductors shall be as shown on the Contract Drawings.
Where no size is shown, copper grounding conductors shall be as required by the NEC.
C. Additionally, transformer frames and frames of motors rated 10 HP or more shall be bonded
directly to structural steel, reinforcing steel, or other suitable electrode, using copper
grounding conductors. These conductors may be embedded in concrete floor slabs and
require no conduit enclosure except where exposed to mechanical injury. Exposed
connections shall be made by means of approved pressure clamps.
D. All control circuits shall be grounded on the non-fused side of the control transformer,where
used.
E. The Contractor shall exercise care to insure good ground continuity, in particular between
the conduit system and equipment frames and enclosures. Where necessary,jumper wires
shall be installed. Metal conduits for branch circuits exceeding 250 volts to ground, metal
branch circuit conduits exceeding one-inch in size, and metal feeder conduits of any size or
voltage entering sheet metal enclosures through remaining knockouts shall be bonded to the
enclosure with jumpers. Grounding receptacles shall be provided with green insulated
jumpers from the grounding terminal on the receptacle to a bolt or screw on the outlet box.
"G" clips are not permitted.
PART 3—EXECUTION
This section not used.
END OF SECTION 26 05 26
1922.052 TWO RIVERS UTILITIES
09/14/20 26 05 26-1 CCWWTP BAR SCREEN

SECTION 26 05 33—CONDUITS AND RACEWAYS
PART 1 -GENERAL
1.01 GENERAL.
A. This section shall include grid and intermediate metal conduit, rigid non-metallic conduit,
flexible metal conduit, pull and junction boxes, and the support systems for conduits.
PART 2-PRODUCTS
2.01 CONDUIT MATERIAL AND INSTALLATION.
A. Rigid and intermediate metal conduit shall be zinc coated steel with threaded couplings and
fittings. Termination at sheet metal enclosures shall consist of double locknuts and insulating
bushings. Rigid or intermediate metal conduit shall be used for all exposed and concealed
work except where other raceways are indicated, specified, or permitted. Intermediate
metal conduit shall not be placed in contact with the earth nor shall it be utilized in hazardous
locations.
B. Flexible metal conduit (non-liquid-tight) shall be of aluminum or zinc coated steel, and shall
be used for connections to recessed lighting fixtures and dry-type transformers. Connectors
shall be the insulated throat type of steel. Flexible metal conduit used in damp or corrosive
locations, or for valve or motor connections, shall be PVC jacketed liquid tight complete with
liquid tight connectors.
C. Rigid polyvinyl chloride conduit, UL listed as non-metallic conduit for underground use will
be permitted for use underground and in gravel or earth under concrete slab on grade. An
equipment grounding conductor of THWN insulated copper shall be included in all runs of
non-metallic conduit. Vertical elbows may also be of PVC provided they remain concealed
or otherwise protected but shall be of rigid steel or intermediate metal conduit where they
stub up into an exposed location. PVC conduit shall be rated for use with 75 degree
Centigrade insulated conductors. Underground conduits shall be installed a minimum of two
feet below grade except where run under a concrete slab on grade.Where drawings indicate
PVC conduit for exposed work conduit and fittings shall be schedule 80 PVC.
D. Provide concrete encasement for all conduit routed underground. Concrete coverage shall
be minimum 3 inches in all directions.
E. Manufactured"factory"elbows and offsets shall be used wherever possible. For bends made
in the field, an approved conduit bending machine shall be used. Field bends shall be
symmetrical and carefully made so as to prevent damage or deformation of conduit. Any
conduit that has been crushed or deformed in any way shall not be installed. Routing of
conduits shall be the shortest possible and compatible with good layout. The number of
bends, offsets and crossovers shall be kept to a minimum. The Contractor shall exercise the
necessary precautions to prevent lodgment of dirt in conduits, boxes and fittings during
installation. A run of conduit which has become clogged shall be swabbed to remove all
foreign matter or shall be replaced.
F. Conduits may not be installed laterally in any concrete slab where the outside diameter of
the conduit, measured at a coupling, exceeds one-third the thickness of the concrete.
1922.052 TWO RIVERS UTILITIES
09/14/20 26 05 33-1 CCWWTP BAR SCREEN

Conduits shall occupy the middle third of the slab when practical and leave 3/4-inch concrete
cover. Conduits may cross each other within the slab provided the 3/4-inch cover is
maintained. Conduits shall be tied to the reinforcing rods or otherwise supported when
necessary to prevent sagging when concrete is poured. They shall be laterally spaced not
closer than three diameters on center.
G. Conduits passing through or emerging from the earth, concrete slabs, or other surfaces shall
emerge perpendicular to the surface where exposed. Bends and elbows with curved portions
partially exposed and partially embedded are not permitted.
H. Where practical, conduit runs shall be slightly pitched to facilitate draining the condensate
or shall be otherwise installed to prevent trapping of condensation.
I. Pull boxes and condulets of an approved type shall be provided on conduit systems where
shown and where required to assist in pulling wires or cables into conduits.
J. Conduit sizes that are not indicated on the drawings shall be determined by the Contractor
in accordance with National Electrical Code requirements for the actual insulation used.
2.02 CONDUIT HANGERS, SLEEVES,AND INSERTS.
A. Conduit supports shall be spaced at intervals of eight feet or less, as required to obtain rigid
construction.
B. Single conduits shall be supported by means of one-hole pipe clamps in combination with
one-screw clamp backs, to raise conduits from the surface. Multiple runs of conduits shall
be supported on trapeze hangers with stainless steel or aluminum horizontal members and
stainless steel threaded hanger rods. The rods shall be not less than 3/8-inch in diameter.
C. Conduit hangers shall be attached to structural steel by means of beam or channel clamps.
Where attached to concrete surfaces,concrete inserts of the spot type or the continuous slot
type shall be provided.
D. Hangers and supports for conduits shall be of an approved design and shall be adequate to
support conduit systems with a factor of safety of at least ten. Hangers and supports used
outdoors, in wet locations, inside pumping stations or in any space not provided with heating
and air conditioning shall be made entirely of aluminum, fiberglass or stainless steel. Steel
hangers shall only be permitted in dry, climate-controlled areas.
E. Where conduits pass through the walls or floors of structures, they shall be installed in
suitable sleeves. Sleeves installed in the outside walls of structures below grade or elsewhere
where water-tightness is required,shall be cast iron with water stops on the outside,caulking
rings on the inside, and shall be caulked at both ends. All other sleeves shall be galvanized
steel pipe.
2.03 PULL AND JUNCTION BOXES.
A. Boxes installed in dry interior locations may be of steel or aluminum. Boxes concealed above
suspended ceilings or flush mounted in partitions may be of stamped steel type, with
knockouts.
1922.052 TWO RIVERS UTILITIES
09/14/20 26 05 33 2 CCWWTP BAR SCREEN

7
B. For exposed work in dry interior locations, boxes larger than 5 inches in any dimension may
be of sheet steel or aluminum, with screw-on covers, and without knockouts. Smaller boxes
shall be of cast aluminum or ferrous alloy, with threaded hubs and appropriate covers.
Where used outdoors or in wet locations indoors, cast boxes shall be equipped with
appropriate gasketed covers. In locations subject to corrosion, boxes shall be of stainless
steel or other corrosion-resistant materials,as noted on the drawings and as required for the
application.
2.04 CABINETS.
A. Surface mounted cabinets used for control panels, instrumentation terminals, and
panelboards shall be furnished without knockouts.
PART 3—EXECUTION
This section not used.
END OF SECTION 26 05 33
1922.052 TWO RIVERS UTILITIES
09/14/20 26 05 33-3 CCWWTP BAR SCREEN
kr •

DIVISION 32—EXTERIOR IMPROVEMENTS
SECTION 32 92 00—TURF AND GRASSES
PART 1—GENERAL
1.01 GENERAL.
A. Landscaping shall include rough and fine grading, topsoil if required, fertilizer, lime, seeding
and mulching.
PART 2—PRODUCTS
2.01 FERTILIZER.
A. The quality of fertilizer and all operations in connection with the furnishing of this material
shall comply with the requirements of the North Carolina Fertilizer Law and regulations
adopted by the North Carolina Department of Agriculture.
B. Upon written approval of the Engineer a different grade of fertilizer may be used, provided
the rate of application is adjusted to provide the same amounts of plant food.
2.02 LIME.
A. The quality of lime and all operations in connection with the furnishing of this material shall
comply with the requirements of the North Carolina Lime Law and regulations adopted by
the North Carolina Department of Agriculture.
B. During the handling and storing, the lime shall be cared for in such a manner that it will be
protected against hardening and caking. Any hardened or caked lime shall be pulverized to
its original condition before being used.
C. Lime shall be agriculture grade ground dolomitic limestone. It shall contain not less than 85
percent of the calcium and magnesium carbonates and shall be of such fineness that at least
90 percent will pass a Number 10 sieve and at least 50 percent will pass a Number 100 sieve.
2.03 SEED.
A. The quality of seed and all operations in connection with the furnishing of this material shall
comply with the requirements of the North Carolina Seed Law and regulations adopted by
the North Carolina Department of Agriculture.
B. All seeding activities shall include permanent seed for primary stabilization and temporary
seed for immediate ground stabilization.
C. Seed shall have been approved by the North Carolina Department of Agriculture or any
agency approved by the Engineer before being sown, and no seed will be accepted with a
date of test more than eight months prior to the date of sowing. Such testing, however, will
not relieve the Contractor from responsibility for furnishing and sowing seed that meets
these specifications at the time of sowing. When a low percentage of germination causes
the quality of the seed to fall below the minimum pure live seed specified, the Contractor
may elect, subject to the approval of the Engineer, to increase the rate of application
1922.052 TWO RIVERS UTILITIES
09/14/20 32 92 00-1 CCWWTP BAR SCREEN

sufficiently to obtain the minimum pure live seed content specified, provided that such an
increase in the rate of application does not cause the quantity of noxious weed seed per acre
or square yard, as the case may be, to exceed the quantity that would be allowable at the
regular rate of application.
D. During handling and storing, the seed shall be cared for in such a manner that it will be
protected from damage by heat, moisture, rodents, or other causes.
E. Seed shall be entirely free from bulblets or seed of Johnson Grass, Nutgrass, Sandbur, Wild
Onion, Wild Garlic, and Bermuda Grass. The specifications for restricted noxious weed seed
refers to the number per pound, singularly or collectively, of Blessed Thistle, Wild Radish,
Canada Thistle, Corncockle, Field Bindwee, Quackgrass, Dodders, Dock, Horsenettle, Bracted
Plantain, Buckhorn, or Wild Mustard; but in no case shall the number of Blessed Thistle or
Wild Radish exceed 27 seeds of each per pound. No tolerance on weed seed will be allowed.
PART 3—EXECUTION
3.01 FERTILIZING,SEEDING AND MULCHING.
A. Established lawns and landscaped areas damaged by construction shall be restored to their
former condition by seeding, unless the type and condition of the existing sod warrants it
being cut, removed, preserved, and replaced. All areas, regardless of previous condition,
damaged by construction shall be fertilized, seeded, and mulched as outlined below:
1. Seed Bed Preparation: The seed bed shall be prepared by pulverizing the soil in an
approved manner to a depth of three (3) inches for field conditions or slopes that are
3:1 or flatter and to a depth of one (1) to three (3) inches, as determined on site for
slopes steeper than 3:1. The soil shall be tilled until a well pulverized, firm, reasonably
uniform seed bed is prepared conforming substantially to ground elevations as shown
on the Plans and/or as existed prior to construction. The disturbed area shall blend
uniformly into adjacent topography. Good surface drainage must be provided,
allowances for settlement made and ground elevations adjusted accordingly. Visible
ponding will not be allowed. All stones, roots, sticks, rubbish, and other objectionable
material shall be removed.
2. Soil Improvements: Soil additives shall be incorporated in an approved manner into the
top soil at the following rates:
a. Fertilizer - 20 pounds per 1000 square feet of 5-10-10 fertilizer generally and 30
pounds per 1000 square feet of 10-10-10 fertilizer for established lawn areas.
b. Lime- 100 pounds per 1000 square feet.
c. Superphosphate (0-20-0)- 12 pounds per 1000 square feet.
3. Seeding must be done within thirty(30) calendar days after the initial ground disturbing
activity.
a. The seed bed must be in good,friable condition and not muddy or hard at the time
seeding is performed.
1922.052 TWO RIVERS UTILITIES
09/14/20 32 92 00 2 CCWWTP BAR SCREEN

1
b. Seed shall be applied at the rate specified and raked or tilled into the topsoil with
the resulting furroughs running across the natural slope of the ground. Under no
circumstances will any tilling activity be allowed parallel with said slope.
c. Slopes steeper than 3:1 shall require the use of hydraulic seeding unless otherwise
specifically approved by the Engineer.
4. Mulching: After fertilizing, seeding and raking, dried straw shall be spread uniformly
over the area at a rate of 90 pounds per 1000 square feet. Approximately 1/4 of the
ground should remain visible to avoid smothering seedlings.The straw shall be sprayed
with liquid asphalt to bond it together and anchor it in place within road right-of-way
and areas subject to erosion.
5. Maintenance: The Contractor shall maintain the seeded areas until there is a uniform
growth three (3) inches high. Maintenance shall consist of watering, weed and pest
control within established lawns, fertilization, erosion repair, reseeding and all else
necessary to establish a vigorous healthy and uniform stand of grass. All areas and spots
which do not show a uniform stand of grass,for any reason, shall be treated repeatedly
until a uniform stand is attained.
6. Seasonal seeding mixtures and rates of application shall be as follows. All rates are in
pounds per 1000 square feet and any rates listed below may be cut by 1/2 for temporary
erosion control measures only.
September 15- March 1:
a. Maintained/Established Lawns or road rights-of-way
1) 6#Kentucky Fescue No. 31
2) 2# Rye Grain
3) 30# Fertilizer(10-10-10)
4) 100# Lime
5) 12#Superphosphate
b. Open-Field (Anything other than an established lawn)
1) 4#Kentucky Fescue No. 31
2) 2#Rye Grain
3) 20# Fertilizer(5-10-10)
4) 100# Lime
5) 12#Superphosphate
c. Open-Field For Slopes 2:1 or greater or areas subject to erosion
1922.052 TWO RIVERS UTILITIES
09/14/20 32 92 00-3 CCWWTP BAR SCREEN

1) 2#Kentucky Fescue No. 31
2) 4#Sericea Lespedeza (Unscarified)
3) 2#Rye Grain
4) 30# Fertilizer(5-10-10)
5) 100# Lime
6) 12#Superphosphate
February 1—October 15
a. Maintained/Established Lawns or road rights-of-way
1) 8# Kentucky Fescue No. 31
2) 30# Fertilizer(10-10-10)
3) 100# Lime
4) 12#Superphosphate
b. Open-Field (Anything other than an established lawn)
1) 6#Kentucky Fescue No. 31
2) 2#Sudangrass (May,June, and July only)
3) 20# Fertilizer(5-10-10)
4) 100# Lime
5) 12#Superphosphate
c. Open-Field For Slopes 2:1 or greater or areas subject to erosion
1) 2# Kentucky Fescue No. 31
2) 4#Sericea Lespedeza (Scarified)
3) 2#Sudangrass (May,June, and July only)
4) 20# Fertilizer(5-10-10)
5) 100# Lime
6) 12#Superphosphate
7. The Engineer will be consulted prior to seeding for a determination of appropriate seed
mixture.
1922.052 TWO RIVERS UTILITIES
09/14/20 32 92 00-4 CCWWTP BAR SCREEN

i
8. Unless otherwise required by the North Carolina Department of Transportation or the
Engineer seeding within road rights-of-way will be as specified for established lawns.
END OF SECTION 32 92 00
1922.052 TWO RIVERS UTILITIES
09/14/20 32 92 00-5 CCWWTP BAR SCREEN

DIVISION 46—WATER AND WASTEWATER EQUIPMENT
46 21 00—SCREENING EQUIPMENT
PART 1—GENERAL
1.01 GENERAL.
A. This section includes labor, materials, equipment and supervision necessary to furnish and
install one chain and rake type, front cleaned, front returned, multi-rake, mechanically
cleaned, back discharged type bar screen as shown on the Contract Drawings and as specified
herein.
B. Mechanically cleaned screening unit, including all appurtenant equipment,shall be furnished
by a manufacturer who is fully experienced, reputable and qualified in the manufacture of
the system components to be furnished. The equipment shall be designed, constructed and
delivered in accordance with the best practices and methods.
C. The mechanically raked screening equipment shall be constructed of first class workmanship,
ground smooth at the edges and delivered complete and ready for installation. All welds,
joints and connections shall be free of discoloration and uniform in appearance.
D. The mechanically raked screening equipment and the control systems shall be provided by
the same supplier and coordinated to provide a complete screening package. Installation and
control systems for these items shall be coordinated to provide a complete screening
package.
E. Mechanically raked screening equipment shall be RakeMax as manufacturered by Huber
Technology, Inc., Chain and Rake Monster as manufactured by JWC Environmental, VMR
MultiRake as manufactured by Vulcan Industries, or approved equal.
PART 2—PRODUCTS
2.01 SCREENING EQUIPMENT DESCRIPTION AND PERFORMANCE CHARACTERISTICS.
A. The mechanical bar screen installed as part of the Crowders Creek WWTP shall have the
following characteristics:
Number: One
Channel Width: 4'-0"
Screen Width: 3'-6" (min.)
Incline: 75°
Bar Spacing: 1/2" clear
Capacity: 6.0 MGD (Design), 13.7 MGD (Peak)
Drive Size: 1.5 HP (min.)
Electrical Characteristics: 460 volts, 3 phase, 60 Hz
Accessories: Timer, Differential Head Controls, Screen Covers
1992.052 TWO RIVERS UTILITIES
09/14/20 46 2100-1 CCWWTP BAR SCREEN

2.02 MULTI-RAKE BAR SCREEN.
A. The mechanically cleaned screen equipment shall be designed for continuous operation in
raw sewage at maximum or minimum flows in the respective channels while removing
screenings from the sewage flows and delivering the screenings to a dumpster.
B. The equipment shall be capable of proper and efficient operation under the sewage flows
and screen loadings. Operation shall be such that the screenings shall not be re-suspended
during transport upwards to the screenings table.
C. Bar rack and rake
1. The bar rack shall be fabricated of 304 stainless steel bars a minimum of 1/4-inch thick
at widest point and 1-1/2-inch deep. The bars in the rack shall be equally spaced at 1/2-
inch securely attached to the frame and be removable. The lower end of the bar rack
shall be provided with a stainless steel base plate to ensure rakes remove all screenings
from bar rack.
2. The rakes shall be of stainless steel construction and stainless steel teeth. The teeth
shall be not less than 1/2-inch thick and shall be made up in sections and bolted to the
rack frame. Individual sections of rake teeth shall be replaceable in the event of tooth
damage.
3. A flat stainless steel dead plate configured so that all rack teeth make contact with the
plate. The dead plate shall be suitably reinforced to prevent deflection. The dead plate
shall be provided from the top of the bar rack to the point where the screenings are
discharged into a screening hopper. The screenings hopper shall be stainless steel and
designed to discharge the screenings into the dumpster as show on the Contract
Drawings. Screenings hopper shall be equipped with a stainless steel chute to direct
screenings to dumpster or be located directly above dumpster. A stainless steel pivoting
wiper with replaceable polyethylene blade shall clean the rake on each pass.
4. The bar rack and rake design shall be such to ensure that all maintenance can be
accomplished at the operating floor level. The bar rack and dead plate shall be inclined
at 75 degrees from horizontal and span the full width of the channel.
D. Frame, shaft, chains and sprocket
1. The rakes shall be mounted to roller chains made from 316 stainless steel. The chains
shall be driven by stainless steel sprockets mounted to a stainless steel shaft. Drive
chains, sprockets, chain guides and bearings shall be replaceable without removing the
screen from channel. Chain rollers shall be made of cast polyamide or stainless steel.
2. The upper sprockets shall be mounted to a stainless steel drive shaft with grease
lubricated take up bearings. Grease fittings shall be located for easy lubrication. The
lower sprockets shall be of self-lubricating design with low friction ceramic bushing.
Provide stainless steel guards to protect the sprocket from large debris. A stainless steel
roller chain guide system with polyethylene wear plates shall be installed in each side
frame.
1992.052 TWO RIVERS UTILITIES
09/14/20 46 2100-2 CCWWTP BAR SCREEN
L

1
3. The frame shall be constructed of stainless steel and shall be suitably sized and
reinforced to support the required loads.The frame shall be mounted to the operating
floor with stainless steel anchor bolts.
E. Drive unit
1. A motorized speed reducer shall drive the screen rakes at a speed of not less than 10,
not more than 40 feet per minute. A variable frequency drive may be utilized for speed
control.
2. The drive motor shall be TEFC, 1.5 HP (min.), 460 Volt, 3 Phase, 60 Hz.
3. Reducers shall be of the helical type, fully housed running in oil, and with anti-friction
bearings throughout. The speed reducer and electric motor shall be mounted as a
common unit on a steel bracket, directly coupled to the reducer through the use of a
flexible coupling. The unit shall have all AGMA Class II service rating and shall be an
AGMA rating plate. A drain shall be provided in the casing.
4. The bar screen electric drive shall be of sufficient horsepower to satisfactorily operate
the rakes under all operating conditions. A Load Current Relay shall be provided at each
drive unit and shall be sized to protect the weakest item of the entire screen mechanism.
5. The reducer shall be driven by a totally enclosed motor with ample power for starting
and operating the mechanism under normal operating conditions, without overloading.
Motors shall meet the requirements of Section 11 05 13 - Motor Requirements.
F. All anchor and installation bolts, washers, and nuts shall be stainless steel. All drive
components shall be rated for outdoor service.
2.03 CONTROLS.
A. The screening equipment manufacturer shall provide a NEMA 4x stainless steel main control
panel to operate new screen as a complete system. The primary control interface shall be
equipped with a process logic controller and selector and indicator devices including but not
limited to the following:
1. Local HOA switch mounted at the screen. In the HAND position, the screen shall be
controlled by a FORWARD /STOP / REVERSE push button station with spring return to
off from REVERSE. In the OFF position, the screen shall be inoperative. In the AUTO
position, the screen shall be operated by the screening control panel. Emergency stop
shall also be provided locally at the screen.
2. A motor driven timer switch adjustable from 3 to 120 minutes between cycles for
automatic operation. Timer function shall be selectable to operate as a back up to the
differential head control or independently as timer control.
3. Differential head control to start the screen whenever the head deferential reaches a
predetermined level, to continue operation for two complete cycles after head
differential returns to normal and to operate for two cycles each two hours regardless
of differential head.
1992.052 TWO RIVERS UTILITIES
09/14/20 46 2100-3 CCWWTP BAR SCREEN
L

4. Alarms including high level, screen run fault, loss of level transducer.
5. Run time meter.
6. Contacts for remote indications screen running and faults
7. Ultrasonic level transmitters.
8. Operator Interface Unit.
B. Instrumentation and control components including push button selector, selector switches,
pilot lights,and digital indicators shall be of the highest quality. Switch and light devices shall
be NEMA Type 4/13 Watertight/Oiltight, heavy industrial units requiring 35 millimeter
mounting holes. Pilot light units shall be of the transformer type. Control relays shall be of
a cube design, two base plug-in style with a manual operator and on-off flag. The contact
arrangement shall be 3PDT. The relay enclosure shall be a transparent polycarbonate
material and the coils shall be rated for continuous duty cycle.
C. Ultrasonic non-contacting type level transmitters shall be mounted as shown to monitor
water level. Level transmitters shall be powered by separate 24 volt DC power supplies
located in the control panel. The level transmitter shall have a housing or corrosion resistant
material and shall be capable of continuous operation in a condensing environment between
0°F. and 100°F. The transmitter shall be capable of maintaining high level readings while
submerged. The transmitter shall have a range of at least 1 to 15 feet with an output signal
of 4 to 20 milliamps corresponding to the monitoring range. The device shall be field
calibratable and display a continuous LCD readout of level. Programming logic for the device
shall be stored in nonvolatile EEPROM memory without the need for battery power.
Additionally,the status of the devices shall be reported to the control panel through normally
open contact closures which close upon unit failure.
D. The digital indicators shall be 3-1/2 digit, 1/8 DIN units calibrated for 4 to 20 mA DC or digital
input over the necessary engineering unit span.
E. All control wiring entering the control panel shall be neatly labeled and terminated on strips
providing easy access. Where terminations to the control system are to be made by others
for remote communication or integration into an owner-provided SCADA system,a separate
terminal strip shall be provided and neatly labeled.
F. Each panel device shall be clearly labeled using engraved nameplates showing the function
and engineering units.
2.04 SPARE PARTS.
A. The manufacturer shall furnish the following spare parts for the multi-rake bar screen:
1. Two (2) sets of rake plates
2. Two (2) wiper blades
3. Two (2) lower bearing assemblies
1992.052 TWO RIVERS UTILITIES
09/14/20 46 2100-4 CCW WTP BAR SCREEN

7
PART 3—EXECUTION
3.01 INSTALLATION AND START-UP.
A. The manufacturer shall provide the services of a factory-trained Service Engineer,specifically
trained on the type of equipment specified to assist in the installation and start-up and train
personnel in the operation and maintenance of the equipment. The manufacturer shall
provide a minimum of two one-day trips.
END OF SECTION 46 2100
1992.052 TWO RIVERS UTILITIES
09/14/20 46 21 00-5 CCWWTP BAR SCREEN
L

4
SCOPE OF WORK / CONSTRUCTION SEQUENCE
\ THE SCOPE OF WORK / CONSTRUCTION SEQUENCE INCLUDES ALL
MATERIALS AND SERVICES TO INSTALL A NEW MULTIRAKE BAR SCREEN
INCLUDING BUT NOT LIMITED TO THE FOLLOWING. PRIOR TO BEGINNING
WORK THE CONTRACTOR SHALL SUBMIT A DETAILED WRITTEN PROJECT
ss SCHEDULE FOR APPROVAL IDENTIFYING THE SEQUENCE AND DURATION
EXISTING 12" SEWER\<-
OF EACH WORK ITEM.
1. FILL EXISTING BLOCK OUTS WITH CONCRETE.
INFLUENT 2. INSTALL NEW BAR SCREEN IN EXISTING CHANNEL.
FM ss FM FM PUMPING STATION
FF ELEV. = 640.00 3. INSTALL NEW CONDUITS AND WIRE FOR NEW SCREEN.
• 4. INSTALL NEW CONTROL PANEL AND FUSED DISCONNECTS.
W J 5. RELOCATE EXISTING SCREEN CONTROL PANEL.
SS 6. CONNECT NEW SCREEN CONTROL PANEL TO EXISTING SCADA SYSTEM.
U-
u_
3 NOTES:
• 1. PROCESS PIPING SHOWN BASED ON RECORD DRAWINGS. CONTRACTOR
SHALL PROTECT ALL EXISTING UTILITIES AND REPAIR ANY DAMAGE
CAUSED BY CONSTRUCTION ACTIVITIES.
U- 2. THE CONTRACTOR IS ADVISED THAT WORK ON THE PROJECT IS TO
EXISTING 24" BE PERFORMED IN AN ACTIVE WASTEWATER TREATMENT PLANT. THE
FORCE MAIN 3 CONTRACTOR SHALL COORDINATE HIS EFFORTS AS TO NOT INTERFERE
v) WITH THE NORMAL OPERATION OF THE PLANT.
EXISTING GRIT
3" WATER HOPPER 3. ALL WORK SHALL BE COORDINATED WITH THE ENGINEER. CONTRACTOR
SHALL SUBMIT A SCHEDULE AND WORK PLAN IN WRITING TO THE
PRELIMINARY ENGINEER AND RECEIVE APPROVAL PRIOR TO BEGINNING WORK.
TREATMENT 4. THE CONTRACTOR IS SOLEY RESPONSIBLE FOR SITE SAFETY
FF ELEV. = 622.50 ASSOCIATED WITH ALL REQUIREMENTS CURRENTLY MANDATED BY THE
3 OCCUPATIONAL SAFETY AND HEALTH ADMINISTRATION.
U) NEW SCREEN
5. ELEVATIONS NOTED IN PLANS AND SECTION ARE BASED ON RECORD
I
`EXISTING 42" INFLUENT DRAWINGS AND AVAILABLE DATA. THE ELEVATIONS ARE SHOWN FOR
EXISTING ASPHALT PAVEMENT / REFERENCE ONLY AND SHOULD BE VERIFIED PRIOR TO
z
o EXISTING SCREEN /1 CONSTRUCTION.
ci —eAl 6. ELECTRICAL MOTOR CONTROL CENTER AND CONTROL PANEL LOCATED
J IN THE INFLUENT PUMPING STATION. SEE SHEET 3.
U U)
z " 7. THE NEW SCREEN CONTROL PANEL SHALL BE CONNECTED TO THE
I
IIIIIIIIIII PLANT'S EXISTING SCADA SYSTEM BY THE CITY'S SYSTEM INTEGRATOR.
N THE CONTRACTOR SHALL COORDINATE SCADA WORK AS PART OF THE
co
CONTROLS ALLOWANCE.
a w 8. THE EXISTING SCADA SYSTEM UTILIZES A SERIES OF ALLEN-BRADLEY
z PROCESS LOGIC CONTROLLERS DISTRIBUTED THROUGHOUT THE PLANT.
o Da SS rss G, SCREEN OUTPUTS CONNECTED SHALL BE AS SPECIFIED IN THE
l N
aIIIKu CONSTRUCTION STAGING AREA CONTRACT DOCUMENTS.
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1
NOTES:
1. CONTRACTOR TO VERIFY DIMENSIONS FOR NEW EQUIPMENT
BYPASS PUMP a PRIOR TO CONSTRUCTION.
CONNECTION 2. EXISTING HOIST SHALL NOT BE UTILIZED BY CONTRACTOR.
It. NOTES:
SHALL BE RESPONSIBLE FOR ALL
HOISTING/LIFTING REQUIRED TO COMPLETE THE WORK.
n, 3. EXISTING BLOCK OUTS TO BE FILLED WITH CONCRETE PRIOR
!! TO PLACEMENT OF BAR SCREEN.
4. EXISTING GRATING SHALL BE MODIFIED FOR INSTALLATION OF
NEW SCREEN. PROVIDE STAINLESS STEEL GRATING SUPPORT
EXISTING HOIST ACROSS CHANNEL AS NEEDED TO SUPPORT EDGE OF GRATING.
5. WITH THE EXCEPTION OF LOCAL CONTROL STATION, ALL
ELECTRICAL EQUIPMENT SHALL BE A MINIMUM OF 14' FEET
ABOVE CONCRETE DECK.
DUMPSTER
EXISTING /(BY OTHERS)
DUMPSTER
EXISTING
SCREEN
I
NEW
\- ,--4-: MULTI-RAKE
BAR SCREEN
CONSTRUCTION STAGING
BLOCK OUTS 640.00'
)111 — — a TO BE FILLED —
(SEE NOTES) .
NEW MULTI-RAKE ///:-
BAR SCREEN
oEXISTING wo F-I
BYPASS SCREENV (1 IzzDUMPSTER w a (BY OTHERS) w
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z © O EXISTING GRATING I I I -n \ l/s EXISTING STOP — _ 622.50'
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1
WATERTIGHT
STAINLESS
J1"C RMC WITH MOTOR ROUTE CONDUITS /
CIRCUIT AND CONTROL ACCESS TO THROUGH LOUVERS
WIRING (SEE NOTE 4) STORAGE ROOM OVER DOOR
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I
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°,--& L .
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HP EXISTING
0 AUTOMATIC
EXISTING TRANSFER
SCREEN SWITCH
EXISTING AIR
NEW ULTRASONIC LEVEL COMPRESSORS
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TO BE INSTALLED
GRIT OVERHEAD
COLLECTOR \
EXISTING SCREEN
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0 1. EXISTING CONTROL PANEL TO BE RELOCATED
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STING SCREEN CONTROLCOORDINATE RELOCATION
WITH
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3. CONDUITS INSIDE BUILDING SHALL BE
= = INSTALLED ON THE CEILING OF THE STORAGE
a _ SEAL = ROOM. CORE FLOOR AT NEW ELECTRICAL
PANEL FOR CONDUIT, EXCEPT AS NOTED.
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°°,�N�I N���:^°� 4. NEW CONDUITS FOR SCREEN SHALL BE
z i �s' '�/ INSTALLED ON TOP OF EXISTING WALL.
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3/4"C ( 1 REMOVE EXISTING FEEDER
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EXISTING MOTOR
4 CONTROL CENTER.
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FUSED DISCONNECT SCREEN CONTROL I MCC-PT
SWITCH FOR EACH PANEL
CONTROL PANEL ��\ L _ PANEL
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NEW SCREEN d
CONTROL PANEL .1 O
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T 1 JUNCTION BOXES
0 AS REQUIRED
EQUIPMENT I
SUPPORT FRAME OF
STEEL CHANNEL a
3 #10 + EXISTING
3/4"C RMC WITH 1 #10 GND FEEDER FROM
LEVEL SENSOR TURN THROUGH / 3/4"C SWBD M3
CABLES EXTERIOR WALL WITH
LB CONDULETS
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0 00 EXISTING BRANCH CIRCUIT PANEL PTL. 120/208V 3 PHASE 4 WIRE.
3 #12 (MOTOR CIRCUIT) +
0
zz Ol Q 12 #14 (CONTROLS) +
J I 1 #12 GND - 1"C RMC O PANE N PTL.FUSED DISCONNECT SWITCH FOR TRANSFORMER FEEDING
0
Z 1.5 HP(MIN.) 0EXISTING FUSED DISCONNECT SWITCH FOR BAR SCREEN. INSTALL NEW
!� ] 30A FUSES AND PROVIDE NEW FEEDER TO SERVE BOTH SCREEN
1 LLNEW 2 Hp CONTROL PANELS. MATCH EXISTING FUSE TYPE.
N IT SCREEN
d LIQUID-TIGHT EXISTING ® MAINTAIN EXISTING CONTROL PANEL IN ITS PRESENT LOCATION UNTIL
z CS NON-METALLIC
SCREEN NEW SCREEN IS IN OPERATION. THEN RELOCATE AS SHOWN.
O 5 FLEXIBLE CONDUIT CONTROL PANEL FOR NEW SCREEN TO BE PROVIDED BY SCREEN
4 PUSHBUTTON
CONTROL EXISTING CONDUIT WITH SYSTEM SUPPLIER. COORDINATE AND VERIFY ALL INSTALLATION
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i- STATION MOTOR CIRCUIT AND REQUIREMENTS.
I o CONTROL WIRING TO
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�T( �"1 - -CONDULET FITTINGS EXISTING SCREEN © PROVIDE FUSED HEAVY DUTY SAFETY SWITCH FOR EACH CONTROL
PANEL. EQUIP WITH 10A FK5 FUSES. NEMA 4 STAINLESS STEEL
FOR CONNECTIONS
o ENCLOSURE WITH LOCK-OFF PROVISIONS AND PADLOCK.
14 SEPT 2020 TO LEVEL SENSORS
a O7 INTERCEPT EXISTING CONDUITS CONNECTING TO CONTROL PANEL.
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