NC0034452_Application (ATC)_20191011

AQ U A
NORTH CAROLINA DEPARTMENT OF ENVIRONMENTAL QUALITY
DIVISION OF WATER RESOURCES
AUTHORIZATION TO CONSTRUCT
APPLICATION
CLIENT
Aqua North Carolina
Attn: Michael Melton
4163 Sinclair Street
Denver, NC 28037
[e-mail]
..JITITIN0
Bell Engineering
Attn: David Schrader, PE
1278 Hendersonville Road, Suite D
Asheville, NC 28803
[e-mail]

Aqua North Carolina, Inc.
0.08 MGD Willow Creek WWTP
Modification to Existing System
Application for Authorization to Construct Permit
Cover Letter
Section 1:
Section2:
Section 3:
Section 4:
Section 5:
Section 6-
Section 7
Table of Contents
Application for ATC Permit (Form ATC-12-14)
NPDES Permit (Section 3, Item B)
Engineering Plans* (Section 3, Item E)
Engineering Specifications* (Section 3, Item F)
Construction Sequence Plan (Section 3, Item G)
Engineering Calculations (Section 3, Item H)
Residuals Management Plan (Section 3, Item J)
*These files will be provided digitally.

engineering
October 3, 2019
Min Xiao, EI
North Carolina Department of Environmental Quality
Division of Water Resources / Water Quality Permitting
512 N. Salisbury Street, 9th Floor
1617 Mail Service Center
Raleigh, North Carolina 27699-1617
Subject: Authorization to Construct (ATC) Application
Willow Creek WWTP Rehabilitation, NCO034452
Davidson County North Carolina
Dear Ms. Xiao:
Representatives from Aqua North Carolina, Inc. (Aqua) and Bell Engineering, Inc. (Bell)
met with North Carolina DEQ staff on July 16th1 2019 to discuss the Willow Creek
Wastewater Treatment Plant (WWTP) Rehabilitation project. The major components of
this rehabilitation and improvements project includes the replacement, in -kind of the
existing 40,000 gallon per day (gpd) steel package WWTP with a new 40,000 gpd
concrete package WWTP. The design basis for the individual treatment systems will
not change. In addition, all of the existing air header piping, return and waste activated
sludge piping will be replaced at the existing 40,000 gpd concrete treatment system that
is to remain. Additions to the treatment system will include the following:
• Mechanically cleaned bar screen
• 21,600 - gallon equalization basin
• 21,900 - gallon aerated sludge holding basin
• U.V. disinfection
On behalf of Aqua, we respectfully request an Authorization to Construct for the work
described by the enclosed application and supporting documentation.
1278 hendersonville road, suite d, asheville, north Carolina 28803
phone:[phone] www.hkbell.com
engineering lic. F-1383 landscape architecture lic. C-508
creating. improving. planning for the future.

Ms. Xiao
October 3, 2019
Page 2
The construction timeline for this project is as follows:
Phase r
IF Scheduled Dates
Technical Memorandum # 1 to Aqua
June 3, 2019
Approval of TM#1 from Aqua
June 14, 2019
Prelin-dnary Design
June 2019 - July 2019
Conceptual Design Meeting w/ NCDEQ
July 16, 2019
Aqua to Procure Long Lead Time Equipment
July 30, 2019
Final Design
July 2019 - September 2019
Submit ATC to NCDEQ
August 2019
Bid Package
October 2019
Construction
October 2019 - February 2020
Startup and Commissioning
March 2020
The following attachments are included as part of this application:
• Application for Authorization to Construct Permit (Section 1)
• NPDES Permit (Section 2)
• Engineering Plans (Section 3) - To be provided digitally
• Engineering Specifications (Section 4) - To be provided digitally
• Construction Sequence Plan (Section 5)
• Engineering Calculations (Section 6)
• Residuals Management Plan (Section 7)
If you have any questions or need additional information, please call me. Thank you
for your assistance in this matter and we look forward to your response.
Sincerely,
BELL ENGINEERING, INC.
.
David F. Schrader, P.E.
N.C. Sea1044733
Enclosures: ATC form with attachments, one CD with digital copies.
Cc: Dana Bolden, P.E., Senior Project Engineer, Bell Engineering
Michael A. Melton, Engineering Manager, Aqua

Section 1
Aovlication for ATC Permit (Form ATC-12-14

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 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://deg.nc.gov/about/divisions/water-resources/water-
resources-permits/wastewater-branch/npdes-wastewater/authorization-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
Aqua North America, Inc
Signature authority's name per 15A NCAC 02T .0106(b)
Michael A. Melton
Signature authority's title
Engineering Manager
Complete mailing address
4163 Sinclair Street, Denver, NC 28037
Telephone number
704.489.9404 ext. 57238
Email address
[e-mail]
B. PROFESSIONAL ENGINEER
Professional Engineer's name
David F. Schrader, P.E.
Professional Engineer's title
Vice President
North Carolina Professional Engineer's License No.
044733
Firm name
Howard K. Bell Consulting Engineers, Inc.
Firm License number
F-1383
Complete mailing address
2480 Fortune Drive, Suite 350, Lexington, KY 40509
Application for Authorization to Construct Permit (FORM ATC-12-14) Page 1

Water Resources
ENVIRONMENTAL QUALITY
State of North Carolina
Department of Environmental Quality
Division of Water Resources
APPLICATION FOR AUTHORIZATION TO CONSTRUCT PERMIT (FORM ATC-12-14)
Telephone number [phone]
Email address [e-mail]
C. NPDES PERMIT
NPDES Permit number
NC 0034452
Current Permitted flow (MGD) — include permit
0.08 mgd
flow phases if applicable
D. PROJECT DESCRIPTION
Provide a brief description of the project: This project includes the rehabilitation of the existing aeration blowers and piping
alone with the closure of one of a 0.04 mad steel aackaee treatment plant. The Droiect also includes the construction of a new
0.04 mgd concrete package treatment plant to replace the existing steel unit. The new construction will include a mechanically
cleaned screening system, a new aeration basin, final clarifier, sludge holding basin, a 20,000 gallon equalization basin and
ultraviolet disinfection following the existing gravity sand filters.
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 133-31 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
❑ 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

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:
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. ® 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.
Application for Authorization to Construct Permit (FORM ATC-12-14) Page 3

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)
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
® Electrical ❑ 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: Specifications
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 4.13.2 of this form were
determined.
® Pollutant loading for each treatment unit demonstrating how the design effluent concentrations in Section 4.13.2 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.
Application for Authorization to Construct Permit (FORM ATC-12-14) Page 4

Water Resources
ENVIRONMENTAL QUALITY
Permits
State of North Carolina
Department of Environmental Quality
Division of Water Resources
APPLICATION FOR AUTHORIZATION TO CONSTRUCT PERMIT (FORM ATC-12-14)
® Provide the following information for each permit and/or certification required for this project:
Permit/Certification
Not
Applicable
Date
Submitted
Date
Approved
Permit/
Certification
Number
If Not Issued Provide
Status and Expected
Issuance Date
Dam Safety
X
Soil Erosion and Sediment Control
November 2019
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:
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(i) 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

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 4: PROJECT INFORMATION
A. WASTEWATER TREATMENT PLANT FLOW INFORMATION —COMPLETE FOR NEW OR EXPANDING FACILITIES
DOES NOT APPLY TO THE SCOPE OF THIS PROJECT
1. Provide the following flow information:
Plant Flows
Existing Plant Design
MGD
Current NPDES Permit Limit
MGD
Current Annual Average
(past 12 months)
MGD
For Past 12 Months:
Start Date: month/yr
End Date: month/yr
For Past 24 Months:
Start Date: month/yr
End Date: month/yr
Maximum Month
MGD
MGD
Maximum Day
MGD
MGD
Peak Hour
MGD
MGD
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): There will be no change to the existing influent or
effluent characteristics. The new 0.04 med aeration basin to be provided by this proiect will be a direct replacement of
the existine 0.04 med treatment system. Refer to the eneineerine calculations section of this report to view the aeration
system calculations, blower design and diffuser layout.
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:
DOES NOT APPLY TO THE SCOPE OF THIS PROJECT
Project Basis of Design
Design Influent
Design Influent
Influent
Concentration
Load
Concentration -
(Must be
(Must be
Current Annual
supported by
supported by
Design Effluent
Average (past
Engineering
Engineering
Concentration and/or
NPDES Permit Limits
12 months) if
Calculations
Calculations
Load
(monthly average)
Parameter
Available
[Section 3.H])
[Section 3.H])
Ammonia Nitrogen
mg/L Summer
5.5 mg/L Summer
(NH3-N)
mg/L
mg/L
I b/day
mg/L Winter
11.0 mg/L Winter
Biochemical
mg/L Summer
9.0 mg/L Summer
Oxygen Demand
mg/L
mg/L
lb/day
(BOD5)
mg/L Winter
15.0 mg/L Winter
Fecal Coliform
per 100 mL
200 per 100 mL
Nitrate + Nitrite
Nitrogen (NO3-N +
mg/L
mg/L
N 02-N )
Total Kjeldahl
mg/L
Nitrogen
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)
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)
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:
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:
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:
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.
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 .10S(n):
8. Per 15A NCAC 02T .0505(g , the public shall be prohibited from access to the wastewater treatment facilities. Explain how
the design complies with this requirement: The design include an 8-foot security fence around the perimeter of the WWTP.
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: The top of all basins are 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):
Calculations
No. of
Plan Sheet
SReferencepecification
Treatment Unit
TypeT
Size per Unit
Provided?
Units
f
Reerence
(Yes or No)
Manual Bar Screen
1
%-inch bars
1.26 MGD at peak hourly flow
7,8
11332
Mechanical Bar
Perforated
1
1.26 MGD at peak hourly flow
7,8
11332
Screen
Basket
Grit Removal
MGD at peak hourly flow
Flow Equalization
1
Rectangular
20,600 gallons
7,8
13250
ft diameter; ft side
Primary Clarifier
Circular
water depth
square feet; ft side
Primary Clarifier
Rectangular
water depth
Other
Application for Authorization to Construct Permit (FORM ATC-12-14) Page 8

Water Resources
ENVIRONMENTAL QUALITY
State of North Carolina
Department of Environmental Quality
Division of Water Resources
APPLICATION FOR AUTHORIZATION TO CONSTRUCT PERMIT (FORM ATC-12-14)
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
Units
Type
Size per Unit
Reference
Reference
Provided?
(Yes or No)
Aerobic Zones/
Tanks
1
Rectangular
57,000 gallons
7,8
13250
Anoxic Zones/
Tanks
gallons
Anaerobic
gallons
Zones/Tanks
Sequencing Batch
--
gallons
Reactor (SBR)
Membrane
--
gallons
Bioreactor (MBR)
Secondary Clarifier
Circular
ft diameter; ft
side water depth
Secondary Clarifier
1
Rectangular
144 square feet; 12 ft side
7,8
13250
water depth
Other
3. TERTIARY TREATMENT DOES NOT APPLY TO THE SCOPE OF THIS PROJECT
No. of
Plan Sheet
Specification
Calculations
Treatment Unit
Units
Type
Size per Unit
Reference
Reference
Provided?
(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
square feet
Filtration
Post -Treatment
--
gallons
Flow Equalization
Post -Aeration
gallons
Other
4. DISINFECTION
No. of
Plan Sheet
Specification
Calculations
Treatment Unit
Units
Type
Size per Unit
Reference
Reference
Provided?
(Yes or No)
400,000 gal/day per bank at
Ultraviolet Light
1
(in series)
peak hourly flow; number of
11,12
11264
banks; 2 number of
lamps/bank 4
Chlorination
(Gas;
gallons of contact
tablet; liquid)
tank/unit
Application for Authorization to Construct Permit (FORM ATC-12-14) Page 9

Water Resources
ENVIRONMENTAL QUALITY
State of North Carolina
Department of Environmental Quality
Division of Water Resources
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
1
Rectangular
21,900 gallons
7,8
132SO
Anaerobic
gallons
Digestion
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)
Location
No. of
Pumps
purpose
Type
Capacity of
each pump
Plan Sheet
Reference
Specification
Reference
GPM
TDH
E.Q. Tank
2
Return Influent to
Aerobic Units for
treatment
Submersible
90
12
7,8
11312
7. MIXERS DOES NOT APPLY TO THE SCOPE OF THIS PROJECT
Location
No. of
Mixers
Purpose
Type
Power of
each MP ixer
plan Sheet
Reference
Specification
Reference
Application for Authorization to Construct Permit (FORM ATC-12-14) Page 10

Water Resources
ENVIRONMENTAL QUALITY
8. BLOWERS
State of North Carolina
Department of Environmental Quality
Division of Water Resources
APPLICATION FOR AUTHORIZATION TO CONSTRUCT PERMIT (FORM ATC-12-14)
Location
No. of
Blowers
purpose
Type
Capacity of
each Blower
(Clo
plan Sheet
Reference
Specification
Reference
Aeration Basins
2
Diffused Aeration
Rotary Lobe PD
632
7,10
13250
Digester
2
Diffused Aeration
Rotary Lobe PD
30
7,8
13250
EQ. Basin
1
Diffused Aeration
Rotary Lobe PD
72
7,8
13250
9. ODOR CONTROL DOES NOT APPLY TO THE SCOPE OF THIS PROJECT
Location
No. of
Units
Purpose
Type
Plan Sheet
Reference
Specification
Reference
E. SETBACKS —COMPLETE FOR NEW WASTEWATER TREATMENT STRUCTURES
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
Treatment/Storage
Design? If "No", identify
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
❑ No
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

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 5: APPLICATION CERTIFICATION BY PROFESSIONAL ENGINEER
Professional Engineer's Certification per 15A NCAC 02T .0105:
I, David F. Schrader, attest that this application package for an Authorization to Construct
(Typed Name of Professional Engineer)
for the Willow Creek WWTP Rehabilitation
(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 133-31 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 4.13.1 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 143-215.613, any person who knowingly makes
any false statement, representation, or certification in any application package shall be guilty of a Class 2 misdemeanor,
which may include a fine not to exceed $10,000, as well as civil penalties up to $25,000 per violation.
North Carolina Professional Engineer's seal with written signature placed over or adjacent to the seal and dated:
\\t1ll111/1"
\\NCARO f� '
" 2 a SEAL-
04033��
lk
// ��i��
David F. Digitally signed by
David F. Schrader
Date: 2019.10.08
Schrader 16:05:16-04'00'
Application for Authorization to Construct Permit (FORM ATC-12-14) Page 12

Water Resources
ENVIRONMENTAL QUALITY
State of North Carolina
Department of Environmental Quality
Division of Water Resources
APPLICATION FOR AUTHORIZATION TO CONSTRUCT PERMIT (FORM ATC-12-14)
ECTION 6: APPLICATION CERTIFICATION BY APP
Applicant's Certification per 15A NCAC 02T .0106(b):
I, Michael A. Melton, attest that this application package for an Authorization to Construct
(Typed Name of Signature Authority and Title)
for the Willow Creek WWTP Rehabilitation
(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 143-215.68. 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 @ fine not to exceed $10,000, as well as civil penalties up to $25,000 per violation.
� U
Signature: Date: (7 Do ( 9
THE COMPLETED APPLICATION AND SUPPORTING INFORMATION SHALL BE SUBMITTED TO:
NORTH CAROLINA DEPARTMENT OF ENVIRONMENT AND NATURAL RESOURCES
DIVISION OF WATER RESOURCES/NPDES
BV V.J. Postal Service
1617 MAIL SERVICE CENTER
RALEIGH, NORTH CAROLINA 27699-1617
Ir _ I.. .
By Cou ier/Speud-1 ueiiver y:
512 N. SALISBURY STREET, 9TH FLOOR
RALEIGH, NORTH CAROLINA 27604
TELEPHONE NUMBER: [phone]
Application for Authorization to Construct Permit (FORM ATC-12-14)
Page 13

Section 2
NPDES Permit (Section 3, Item B)

ROY COOPER
Governor
MICHAEL S. REGAN
Secretary
LINDA CULPEPPER
Director
NORTH CAROLINA
Environmental Quority
January 9, 2019
Mr. Shannon Becker
Aqua North Carolina, Inc.
202 Mackenan Court
Cary, NC 27511
Subject: Draft NPDES Permit NCO034452
Willow Creek Subdivision WWTP
Davidson County
Grade II Biological WPCS
Dear Permittee:
The Division has reviewed your request to renew the subject permit. Please review this draft
carefully to ensure your thorough understanding of the information, conditions, and
requirements it contains.
The draft permit includes the following significant changes from the existing permit:
• Section A. (4.) has been added to require electronic submission of effluent data.
reports (DMRs). Federal regulations require electronic submittal of all discharge
monitoring.
• Components have been changed to correctly reflect the system consisting of three
aeration basins and three secondary clarifiers.
• Regulatory citations have been added to the permit.
• An updated outfall map has been included.
Please note that Abbotts Creek is listed as an impaired waterbody on the North Carolina
303(d) Impaired Waters List. Addressing impaired waters is a high priority with the Division,
and instream data will continue to be evaluated. If there is noncompliance with permitted
effluent limits and stream impairment can be attributed to your facility, then mitigative
measures may be required.
With this notification, the Division will solicit public comment on this draft permit by
publishing a notice in newspapers having circulation in the general Davidson County area,
per EPA requirements. Please provide your comments, if any, to me no later than 30
days after receiving this draft permit.
State of North Carolina I Environmental Quality I Water Resources
1617 Mail Service Center I Raleigh, NC 27699-1617
919 807 6300 . 919-807-6389 FAX
https://deq. nc.govlaboutldivisionslwater-resources/water-resources-permitstwastewater-branchlnpdes-wastewater-permits

Following the 30-day public comment period, the Division will review all pertinent comments
and take appropriate action prior to issuing a final permit. If you have any questions
concerning this permit, please contact Emily Phillips at emily.phillips(@,,ncdenr.gov or
[phone].
Sinc ,
(w4f-5
Emily Phillips
Compliance and Expedited Permitting Unit
cc: NPDES files

Permit NCO034452
Grade II Biological Water Pollution Control System [ 15A NCAC 08G .0302]
STATE OF NORTH CAROLINA
DEPARTMENT OF ENVIRONMENTAL QUALITY
DIVISION OF WATER RESOURCES
PERMIT
TO DISCHARGE WASTEWATER UNDER THE
NATIONAL POLLUTANT DISCHARGE I
In compliance with the provisions of North
lawful standards and regulations promul;
Environmental Management Commission;`
as amended,
Aqua North
roliria General, Statute 143-215.1, other
d' and adopted',�by the North Carolina
the Federal Water°Pollution Control Act,
is hereby authorized to discharge wastewater from
Willow, reek
\Sw of; Willow
\� \. 11" , , H'.
Country Club
at
located at the
to receivin"gwaters designated asvAbbotts Creek in the Yadkin -Pee Dee River Basin, in
accordance, with effluent limitations, monitoring requirements, and other conditions
set forth in Parts,I, II, III arid`IV hereof'd
This permit shall become effective
This permit and authorization to discharge shall expire at midnight on
April 30, 2024.�
Signed this day
Linda Culpepper, Director
Division of Water Resources
By Authority of the Environmental Management Commission
Page 1 of 7

Permit NCO034452
Grade II Biological Water Pollution Control System [15A NCAC 08G .0302]
SUPPLEMENT TO PERMIT COVER SHEET
All previous NPDES Permits issued to this facility, whether for operation or discharge are
hereby revoked. As of this permit issuance, any previously issued permit bearing this
number is no longer effective. Therefore, the exclusive authority to operate and discharge
from this facility arises under the permit conditions, requirements, terms, and provisions
included herein.
1
2.
Aqua North Carolina, Inc. is
Continue to operate an existing 0.080 MG
includes the following components: /"
♦ Influent pump station
♦ Bar screens
♦ Flow equalization tank
♦ Three aeration basins `
♦ Three secondary clarifiers\
♦ Gravity sand filters ,
♦ Chlorine contact chamber
♦ De-chlorination'`���'~,
♦ Effluent flo�i" measurement
The facility is
in Davidson C
into Abbott
Yadkin -Pee
treatment system which
Creek Country Club near High Point
*otks at the location specified on the attached map
classified WS-II waters in sub -basin 03-07-07 of the
Page 2 of 7

Permit NCO034452
Grade II Biological Water Pollution Control System [ 15A NCAC 08G .0302]
PART I.
A. (1.) EFFLUENT LIMITATIONS AND MONITORING REQUIREMENTS
[ 15A NCAC 02B .0400 ET SEQ., 02B .0500 ET SEQ.]
During the period beginning on the effective date of this permit and lasting until
expiration the Permittee is authorized to discharge treated wastewater from outfall
001. Such discharges shall be limited and monitored' by the Permittee as specified
below:
LIMITS
MONITORING REQUIREMENTS
EFFLUENT CHARACTERISTICS
Monthly
Daily Maximum
'Measurement
Sample
Sample
Parameter Code
Average..
Frequency
Type
Location
Flow
0.08 MGD
11Continuous
Recording
I or E
50050
BOD, 5-day, 200C — Summer*
9.0 mg/L
l'
/ 13.5° mg/L
Weekly,
Composite
E
C0310
BOD, 5-day, 200C — Winter*
15.0 mg/L
22.5 mg/L
Weekly
',,,Composite
E
C0310
Total Suspended Solids
30.0
45.0,Tg/L
//1 Weekly
`Composite
E
C0530
g/L
NH3 as N —Summer*
5.5 ;mg/L.��� ;
r 27.5 mg/L
Weekly
Grab
E
C0610
.,
NH3 as N — Winter*
11.0 mg/L',,
35.0 mgl,L
`Weekly
Grab
E
C0610 r .—
Fecal oliform (geometricmean);,V
�200/100 ml
`,5,400/100 ml-•,'
`�� Weekly
Grab
E
31616
;
Dissolved Oxygen
. 'Daily Average,'> 5 0 mg/L
Weekly
Grab
E
00300
,
Temperature—
'
`
z. .a
Weekly
Grab
E
00010 ,
pH l �• '
Between 6.0 -- 9:0 S.U.
Weekly
Grab
E
00400` •
•�,
Total Residua_f Chlorine TRC
( ��
\ 11 61
28 Ng/L
2/Week
Grab
E
50060 �_� �
`�
Total Nitrogen (NO2+NO3.TKN
Monthly
Composite
E
C0600
Total Phosphorus
Monthly
Composite
E
C0665
Dissolved Oxygen
Weekly
Grab
U & D
00300
Temperature
Weekly
Grab
U & D
00010
*Summer. April 1 - October 31
*Winter. November 1 - March 31
Footnotes:
1. The Permittee shall submit discharge monitoring reports electronically using the Division's
eDMR system [see A. (3.)].
2. I: Influent, E: Effluent, U: upstream at NCSR 1743, D: downstream at NCSR 1744.
Page 3 of 7

Permit NCO034452
Grade II Biological Water Pollution Control System [ 15A NCAC 08G .0302]
3. The Division shall consider all effluent TRC values reported below 50 µg/l to be in compliance
with the permit. However, the Permittee shall continue to record and submit all values
reported by a North Carolina certified laboratory (including field certified), even if these values
fall below 50 µg/l.
THERE SHALL BE NO DISCHARGE OF FLOATING SOLIDS OR VISIBLE FOAM 17V OTHER
THAN TRACE AMOUNTS.
A. (2.) NUTRIENT REOPENER FOR HIGH ROCK LAKE
[G.S 143-215.1 (b)] ✓tl�{
This permit may be reopened and modified to implemerit,nutrient requirements in
accordance with any future TMDL and/or nutrient m`an4gement strategy for High Rock
Lake. , �• `�
A. (3.) ELECTRONIC REPORTING OF DISCHARGE MONITORING
REPORTS
[NCGS 143-215.1 (b)].11_
Federal regulations require electnic subm t`al.of all discharge monitoring reports
(DMRs) and program reports. The firial�NPDES Electronic Reporting Rule was
adopted and became effective on De(3ember.21, 20115:
NOTE: This special, condition supplements orrsupersed'es the following sections
within Part II of•this peririit`(Standar&Conditions"for NPDES Permits):
• Section B. (1
• vjecuon
✓ e
•'., Section E. Monitoring Reports
I. Reporting,Requirements, [Super tides Section D. (2.1 and Section E. (5.) (all
. ,� ,
The permittee shall report discharge monitoring data electronically using the NC
DWR's Electronic. Discharge' Monitoring Report (eDMR) internet application.
Monitoring results\obtair#d during the previous month(s) shall be summarized for
each month and submitted electronically using eDMR. The eDMR system allows
permitted facilities to enter monitoring data and submit DMRs electronically using
the internet. Until such time that the state's eDMR application is compliant with
EPA's Cross -Media Electronic Reporting Regulation (CROMERR), permittees will be
required to submit all discharge monitoring data to the state electronically using
eDMR and will be required to complete the eDMR submission by printing, signing,
and submitting one signed original and a copy of the computer printed eDMR to
the following address:
NC DENR / Division of Water Resources / Water Quality Permitting Section
Page 4 of 7

Permit NC0034452
Grade II Biological Water Pollution Control System [ 15A NCAC 08G .0302]
ATTENTION: Central Files
1617 Mail Service Center
Raleigh, North Carolina 27699-1617
If a permittee is unable to use the eDMR system due to a demonstrated hardship
or due to the facility being physically located in an area where less than 10 percent
of the households have broadband access, then a temporary waiver from the
NPDES electronic reporting requirements may be granted and discharge
monitoring data may be submitted on paper DMR forms (MR 1, 1.1, 2, 3) or
alternative forms approved by the Director. Duplicate signed copies shall be
submitted to the mailing address above. See "How to"kequest a Waiver from
Electronic Reporting" section below.
Regardless of the submission method, the first DMR is due on the last day of the
month following the issuance of the permit or in' the case•_of a new facility, on the
last day of the month following the commencement of discharge.
Starting on December 21, 2020, the�lpermittee must electronically report the
following compliance monitoring data and •reports, when applicable:•
• Sewer Overflow/Bypass Eveiit,Reports;
• Pretreatment Program Annual..Reports; and'
• Clean Water Act (CWA) Section\31-6(b),Annual'Reborts.
The permittee may seek -an electronic, reporting waiver from the Division (see "How
to Request a Waiver.from Electronia,Reporting" section below).
2. Electronic Submissions
In accordance with 40`'•CFRj22.41.(1)'(9), the permittee must identify the initial
recipient at the ,time,of eacli,electronic submission. The permittee should use the
EPA's website resources to 'identify the initial recipient for the electronic
submission.
Initial recipient of electronic NPDES information from NPDES-regulated facilities
means the entity (EPA or; the state authorized by EPA to implement the NPDES
program) that is the designated entity for receiving electronic NPDES data [see 40
CFR 127.2(b)].
EPA plans to establish'a website that will also link to the appropriate electronic
reporting tool for each type of electronic submission and for each state.
Instructions on how to access and use the appropriate electronic reporting tool will
be available as well. Information on EPA's NPDES Electronic Reporting Rule is
found at: https://www.federalre ig ster.gov/documents/2015/10/22/2015-24954/national-pollutant-
discharize-elimination-s sty em-npdes-electronic-reporting-rule
Electronicsubmissions must start by the dates listed in the "Reporting
Requirements" section above.
Page 5 of 7

Permit NCO034452
Grade II Biological Water Pollution Control System [15A NCAC 08G .0302]
3. How to Request a Waiver from Electronic Reporting
The permittee may seek a temporary electronic reporting waiver from the Division.
To obtain an electronic reporting waiver, a permittee must first submit an
electronic reporting waiver request to the Division. Requests for temporary
electronic reporting waivers must be submitted in writing to the Division for written
approval at least sixty (60) days prior to the date the facility would be required
under this permit to begin submitting monitoring data and reports. The duration
of a temporary waiver shall not exceed 5 years and shall thereupon expire. At such
time, monitoring data and reports shall be submitted electronically to the Division
unless the permittee re -applies for and is granted a new temporary electronic
reporting waiver by the Division. Approved electronic reporting waivers are not
transferrable. Only permittees with an approved reporting waiver request may
submit monitoring data and reports on paper to,the ,Division for the period that the
approved reporting waiver request is effective. A
Information on eDMR and the application fora temporary -`electronic reporting
waiver are found on the following web page:
http://deq.nc.gov/about/divisions/water-resources/edmr, r
4. Signatory Requirements FSupplements Section B. (11.) (b) and Supersedes
Section B. (11.) (d)l
All eDMRs submitted -to -the permit issuing authority shaltbe signed by a person
described in Part, II, Section B. (11)(a),or by a duly -authorized representative of
that person as(described in Part II, Section B. (11:) (b). ; A person, and not a
position, must be delegated, signatory authority for eDMR reporting purposes.
For eDMR-submissions; the person signing and submitting the DMR must obtain
an eDMR-user account and- login credentials to access the eDMR system. For more
information on North Carolina's eDMRsystem, registering for eDMR and obtaining
an'eDMR user account,, please visit the following web page:
http://deq'.,nc.gov/about/divisions/­water-res'ources/edmr
Certification: ,,Any person submitting an electronic DMR using the state's eDMR
system shall n ake,the following certification [40 CFR 122.221. NO OTHER
STATEMENTS OF," ERTI_FI`CATION WILL BE ACCEPTED:
U certify, under penalty of law, that this document and all attachments were
prepared under my direction or "supervision in accordance with a system designed to
assure that qualified personnel properly gather and evaluate the information
submitted. Based on my inquiry of the person or persons who manage the system, or
those persons directly responsible for gathering the information, the information
submitted is, to the best of my knowledge and belief, true, accurate, and complete. I
am aware that there are significant penalties for submitting false information,
including the possibility of fines and imprisonment for knowing violations."
Page 6 of 7

Permit NCO034452
Grade II Biological Water Pollution Control System [ 15A NCAC 08G .0302]
5. Records Retention [Supplements Section D. (6.)1
The permittee shall retain records of all Discharge Monitoring Reports, including
eDMR submissions. These records or copies shall be maintained for a period of at
least 3 years from the date of the report. This period may be extended by request
of the Director at any time [40 CFR 122.41].
Page 7 of 7
L

t Will
JIVEr/1 I —
II, Ole 20j, 2 JONUK ` Xna-fi, I �Im,
I INVE
NCO034452 — Willow Creek Subdivision WWTP
Latitude: 350 58' 04" N Longitude: 80' 06' 02" W
Sub -Basin: 03-07-07 Stream Class: C
Receiving Stream: Abbotts Creek
Facility
Location
North Davidson County
Map not to scale
1�111m

Section 3
Engineering Plans' (Section 3, Item E)

WILLOW CREEK WWTP REHABILITION
AQUA NORTH CAROL
DAVIDSON COUNTY, NORTH CAROLINA
NPDES NCO034452
2019
LoVo Systems, Inc.
' '0
5480 Swanton Drive
_41 Lexington, KY 40509
SYSTEMS [phone]
Iovosystems.com
0
z
a
g
PREPARED FOR:
A UA
DRAWING INDEX
CIVIL
GENERAL NOTES AND GENERAL LEGEND
PLANT FLOW SCHEMATIC
PLANT HYDRAULIC PROFILE
SITE DEMOLITION PLAN
SITE PIPING PLAN
SITE GRADING PLAN
NEW BASINS UPPER AND LOWER PLAN VIEWS
NEW BASINS SECTION VIEWS
EXISTING BASINS PIPE LAYOUT DEMOLITION PLAN
EXISTING BASINS REVISED PIPING LAYOUT PLAN
UV CHANNEL LOWER PLAN AND UV CHANNEL & VALVE VAULT UPPER PLAN
UV CHANNEL AND VALVE VAULT SECTIONS
MISCELLANEOUS METAL EQUIPMENT DETAILS
MISCELLANEOUS METAL EQUIPMENT DETAILS
MISCELLANEOUS METAL EQUIPMENT DETAILS
CHEMICAL FEED SCHEDULES AND DETAILS
HANDRAIL DETAILS
MISCELLANEOUS DETAILS
MISCELLANEOUS DETAILS
MISCELLANEOUS DETAILS
MISCELLANEOUS DETAILS
MANHOLE DETAILS
NEW SEWER LINE PLAN AND PROFILE
ELECTRICAL
ELECTRICAL SYMBOLS, ABBREVIATIONS & SCHEDULES
ELECTRICAL DETAILS
ELECTRICAL SITE PLAN
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
E-1
E-2
E-3
N a
rth
1
Car-onna.
rrww
neSttarp
,
- /
VICINITY MAP
NOT TO SCALE
CONTRACT NO.
693-19-01
2019
►CtAO
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SEAL r• =
= 044733
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W
W FACSIMILES OF LICENSED PROFESSIONAL ENGINEER AND/OR
LAND SURVEYOR SEALS, IF AFFIXED TO THIS DOCUMENT,
SHALL BE CONSIDERED LEGITIMATE ONLY IF SIGNED AND
DATED BY THE REGISTRANT.
BUD NOTE:
OKENTUCKY STATUTES (KRS 367.4901 THROUGH 367.4917)
U_ REQUIRE THAT ALL EXCAVATORS PLANNING EXCAVATION OR
DEMOLITION WORK SHALL NOTIFY ALL UTILITY COMPANIES IN
1 THE AREA AND/OR AN UNDERGROUND PROTECTION SERVICE
SUCH AS BUD (1-800-752-6007 OR 811) AT LEAST TWO (2)
V WORKING DAYS BEFORE COMMENCING WORK TO ALERT
UTILITY COMPANIES IN THE AREA WITH UNDERGROUND Z
FACILITIES OF THE PLANNED EXCAVATION OR DEMOLITION
ACTIVITIES.
Q ❑ CLIENT REVIEW
Q ❑ BELL (QA) REVIEW
J © DIVISION OF WATER REVIEW
Q
Z ❑ BID DOCUMENTS
L.L
❑ RECORD DRAWINGS
enqinpinring
1278 Hendersonville Road, Suite D
Asheville, North Carolina 28803
P: 828-774-5499
www.hkbell.com
NCEF# f-1383

Section 4
Construction Specifications' (Section 3, Item F)

SPECIFICATIONS FOR
CONTRACT 693-19-01
WILLOW CREEK WASTEWATER
TREATMENT PLANT
AQUA NORTH CAROLINA, INC.
DAVIDSON COUNTY, NORTH CAROLINA
July 2019
engineering
2480 Fortune Drive 107 Forbes Drive 1278 Hendersonville Road
Suite 350 Hopkinsville, KY 42240 Suite D
Lexington, KY 40509 270/886-5466 Asheville, NC 28803
859/278-5412 828/774-5499

POSITIVE DISPLACEMENT BLOWER SPECIFICATION
Part 1 - General
1.1 Manufacturer & Quality Assurance
A. The equipment specified herein is intended to be standard equipment for positive
displacement air systems and be supplied by a single OEM to assure uniform quality
and compatibility.
B. The supplier shall have experience in providing similar equipment, and shall show
proof of satisfactorily operating installations in the marketplace.
C. The blower packager must be an authorized distributor and packager of the blower
being supplied and must be factory authorized to perform warranty service.
1.2 Manufacturer's Field Representation
A. General: The field service representative must be a qualified blower -factory certified
technician.
B. Inspection & Start -Up: Upon notification of completion of the aeration system by the
contractor, the blower technician will perform the following duties as applicable:
installation inspection & certification, equipment lubrication, control panel parameter
setup (if furnished by blower package OEM), initial start-up and corrective
adjustments. Site start-up procedures must include equipment soft -foot checks,
drivetrain alignment with a laser alignment tool and a minimum one hour run under
standard operating conditions.
C. Operator Training: Training to include but not limited to all lubrication locations,
procedures, intervals and allowable lubricants. Drivetrain maintenance, filter
servicing, any applicable alarm condition management and special start-up & shut-
down procedures.
Part 2 — Performance / Components
2.1 Design Criteria
Aeration Basin Blowers
EQ Blower
Digester Blower
Quantity
2
1
1
Discharge Pressure
6.8 PSIG
6.8 PSIG
6.8 PSIG
Motor HP
40 HP
5 HP
3 HP
Operating BHP
28.1 BHP
3.8 BHP
2.1 BHP
Motor RPM
1800 RPM
1800 RPM
1800 RPM
Air Flow (SCFM)
632 SCFM
72 SCFM
30 SCFM
Air Flow (ACFM)
687 ACFM
79 ACFM
33 ACFM
Elevation
82 'ASL
82' ASL
82' ASL
Inlet Air Temp.
100OF
100OF
100°F

Blower RPM
2119 RPM
2017 RPM
1481 RPM
Max. RPM Allowed
2250 RPM
2200 RPM
1600 RPM
Blower Model
Sutorbilt 6L-DSL
Sutorbilt 3M-DSL
Sutorbilt 3H-DSL
Manufacturer: The blower shall be manufactured by the following and shall be
exactly equal to the model number specified above.
1. Gardner Denver Sutorbilt Legend Series - DSL
2. The blower must be manufactured in the United States.
3. Blower systems shall be fully assembled and tested by Excelsior Blower
Systems, Blandon, PA, or engineer pre -approved equal.
2.2 Rotary Positive Displacement Blower
A. The blower shall be of the horizontal rotary bi-lobe positive displacement type
blower. And must provide oil -free air, suitable for heavy-duty continuous industrial
service.
B. The cast iron bi-lobe (figure -eight) impellers must be machined and dynamically
balanced. They must be permanently fastened to steel shafts by means precision
pinning. They shall operate without rubbing, liquid seals, or air cylinder lubrication.
C. The impeller casing shall be of close grain cast iron and must be machined from a
single piece of material. Two piece construction shall not be allowed. The casing
must feature dowel pins for precision head plate alignment. The casing shall be
sufficiently ribbed to prevent distortion and reduce vibration under service
conditions.
D. Head plates shall be close grained cast iron and precision machined for exact
bearing positioning and casing alignment.
E. Alloy steel timing gears shall provide precise rotor synchronization so that
operating clearances are properly maintained. Gears must be press -fit to the
impeller shafts and must not be bored and pinned.
F. Anti -friction bearings must be sized for a minimum B10 life of 100K hours.
G. The timing gear end of the blower must be oil splash lubricated. Drive end bearing
lubrication by means of grease or oil -splash shall be acceptable. No oil pump shall
be required.
H. Oil seals to be high temperature Viton for maximum seal life and leak -free service.
I. Oil seals to be high temperature Viton for maximum seal life and leak -free service.
2.3 Electric Motors
A. Constant torque, TEFC (IP55), 1800 RPM, minimum 1.15 S.F., 230/460/3/60, class
F insulation, certified for DOL starting and VFD service. Motors shall be as
manufactured by Marathon, Baldor, WEG Electric, Toshiba or equal.
B. Motor must meet or exceed Energy Independence and Security Act (EISA 2007)

standards for NEMA premium efficiency.
C. Frame must be cast iron and equipped with cooling fins. The motor feet shall be
solid for better mechanical strength and reduced vibration. Aluminum and steel
framed motors are not allowed. Skeletonized mounting feet are not allowed.
D. Conduit box must be cast iron and rotatable in 90' increments.
E. Endshields shall be cast iron with fins for better thermal heat dissipation for lower
bearing operating temperatures. They must be equipped with drain holes to expel
water that may condense inside the frame in certain environments.
F. VFD operated motors to meet MGI Part 31 rating.
2.4 Blower Package Accessories
A. General: The blower packages shall be fabricated and assembled with the following
accessories and shipped complete to the extent feasible for safe shipping.
B. Equipment Base: The base shall be comprised of carbon steel plate and structural
steel shapes and be of sufficient design to support the blower, motor, drivetrain and
silencers without undue flexing. The base must be of a heavy duty design to ensure
operating vibration levels are within the blower manufacture's allowable tolerance.
The blower and the motor are mounted in the horizontal configuration providing for
vertical airflow and horizontally mounted silencers. The silencers may not be welded
to the base in any way. All welding to be per AWS D1.1. All welders must have a
current welder qualification test record for AWS D1.1 issued by and AES accredited
test facility with a certification no. All welder continuity logs must be up to date.
MTRs must be furnished showing that all structural steel products are melted and
manufactured in the United States.
C. Drive: Provide a v-belt drive assembly consisting of sheaves, quick detachable
bushings, v-belts and slide -tensioning motor base. The sheaves must mount to the
blower & motors shafts by use of QD type bushings, Bored to size / direct -shaft -
mount sheaves are not allowed. Design the drive assembly with a 1.4 service factor
based on the motor nameplate horsepower.
D. V-belt Drive Tensioning Device: Drive belt tensioning must be achieved by use of a
jacking bolts. The slide base must be integral to the main support base and must be
equipped with jacking provisions to facilitate convenient belt replacement.
E. Drive Guard: All mechanical power transmission drive components must be
equipped with a steel guard sufficiently designed to protect personnel from
accidental contact with moving parts. Guard(s) shall be securely mounted and
designed for removal without the use of special tools. All belt drive guards shall be
constructed to allow visual inspection of the sheaves and belts without removal.
F. Filter: Provide each blower with a suitably sized air filter based on the filter
manufactures published airflow capacity levels. The filter element must be
cleanable and reusable. The media must have a minimum efficiency of 97% on 1
micron. Filters to be equipped with a weather hood for outdoor installations.

Acceptable manufactures include Excelsior Blower Systems, Universal Silencer,
Stoddard, Solberg or approved equal.
G. Intake Silencer: Provide a heavy duty steel noise attenuation unit of the chamber -
absorptive (reactive -dissipative) type. The silencer must be multi -chambered for
pulse control and low -frequency noise abatement. The silencer must also contain
internal acoustical packing material for absorption noise control for high -
frequencies. Non -packed chamber only silencers are not allowed. The silencer must
be independently supported but not welded to or integral with the base structure in
any way. Acceptable manufactures include Excelsior Blower Systems, Universal
Silencer, Stoddard, Progentex or approved equal.
H. Discharge Silencer: Provide a heavy duty steel noise attenuation unit of the
chamber -absorptive (reactive -dissipative) type. The silencer must be multi-
chambered for pulse control and low -frequency noise abatement. The silencer must
also contain internal acoustical packing material for absorption noise control for
high -frequencies. Non -packed chamber only silencers are not allowed. The silencer
must be independently supported but not welded to or integral with the base
structure in any way. Acceptable manufactures include Excelsior Blower Systems,
Universal Silencer, Stoddard, Progentex or approved equal.
The discharge silencer packing material must have a temperature rating equal to or
greater than the blower's maximum discharge temperature.
Flexible Connector / Expansion Joints: A flex-conn / expansion joint is required
directly at the discharge of the blower to provide vibration isolation, accommodate
thermal expansion and eliminate loading of the blower cylinder. Three piece
clamped sleeved type and one piece arch type are both acceptable. Lateral,
angular, elongation and compression tolerances must be suitable to accommodate
thermal growth and component manufacturing tolerances. The elastomer's
maximum pressure and temperature ratings must exceed the blower's discharge
pressure and temperature at the relief valve set -point. Connector joints to be
equivalent to Flex -Fab sleeve -type and General Rubber arch -type.
Direct mounting of the discharge silencers to the blower without the use of an
expansion joint shall not be allowed.
J. Pressure Relief Valve: Provide a weighted type relief valve properly sized to protect
the blower from over pressurization. Spring -type valves will not be considered due
to set -point unreliability associated with spring -tension life. The valve must be
located downstream of the discharge silencer for pulsation protection. Provide
valves equal to the Sutorbilt weight -type.
K. Check Valves: Provide a full port dual plate `butterfly style' check valve to be located
downstream of the pressure relief valve. The body shall be steel or cast iron. The
internals shall be corrosion resistant aluminum as a minimum. The hinge pin shall
be stainless steel and the closure stop pin must be Teflon coated to provide for
cushioned contact points. The valve shall be sized based on airflow as per the
manufacture's recommendation to avoid chatter induced fatigue failures. Under-
sized and over -sized valves are not permitted. Provide a valve equivalent to Flexi-
Hinge Model 502M, 518, 503 or equal.
L. Discharge Isolation Butterfly Valve: Provide a wafer type, resilient seated, lever

operated butterfly valve for isolating the blower from the system. Furnish valve with
cast iron or ductile iron body and a corrosion resistant disc such as stainless steel,
Aroxy coated or Nylon coated. The stem shall be stainless steel with a heavy duty
Acetal plug bushing. The seat elastomer to be EPDM or Viton. The hand lever must
be equipped with position latching plate. Acceptable manufactures are DeZurik,
DelVal, Mueller, or approved equal.
M. Discharge Pressure Gauge: Provide 0-15 or 0-30 psi scaled pressure gauge to be
remote panel mounted on the noise enclosure and factory plumbed to the discharge
side of the blower package. The case shall be liquid filled, weather tight and be of
corrosion resistant material such as stainless steel, aluminum, polysulfone or
approved equal. Minimum size is 2-1/2" diameter and minimum accuracy to be +/-
2/1/2% of full scale per ASME B40.100 Grade A. Acceptable manufactures are
Wika, Ashcroft or approved equal.
N. Inlet Restriction Gauge: Provide a low vacuum or differential pressure gage to be
connected to the inlet side of the blower, downstream of the filter element.
Acceptable ranges are 0-15 to 0-30 Inches H2O scale. The gauge shall be remote
panel mounted on the noise enclosure and factory plumbed. The case shall be
weather tight and be of corrosion resistant material such as stainless steel,
aluminum, polysulfone or approved equal. Minimum size is 2-1/2" diameter and
minimum accuracy to be +/- 2% of full scale. Acceptable manufactures are Dwyer,
Ashcroft or approved equal.
2.5 Shop Painting
A. Shop Prime Coating: Prime paint all components before assembly with an alkyd
primer equivalent to Sherwin Williams Kem-Flash prime. Surface preparation,
application and minimum DFT millage to be as per the paint manufactures published
recommendation.
B. Shop Finish Coating: Finish paint all components before assembly with an enamel
paint equivalent to Sherwin Williams Sher-Kem paint. Application and minimum DFT
millage to be as per the paint manufactures published recommendation. Color to be
the OEM's standard color or owner requested color.
2.6 SDare Parts. Lubricants & Special Tools
A. The blower package OEM shall deliver the following parts with the blower
package(s). Coupons or certificates for the future delivery or purchase of parts is
not acceptable. Coupons or certificates for parts to be included with a maintenance
contract is not acceptable.
1. Two filter elements per blower
2. One v-belt set per blower
3. Sufficient lubricants case
2.7 Sound Reduction Enclosure
A. Each blower assembly shall be furnished with a sound attenuating enclosure
suitable for locating outdoors. The enclosure shall be manufactured of 0.063" thick
formed aluminum sheet metal panels. The acoustical packing and overall design

shall be sufficient to meet a free -field noise requirement of 80 dBA at any horizontal
distance of 3 Feet from the exterior surface. The enclosure design shall incorporate
a perforated a galvanized steel inner liner to mechanically secure the acoustical
foam material and to protect the foam from damage. Painted and powder coated
steel enclosures do not offer sufficient weather protection for outdoor installations.
B. The enclosure shall be furnished with latching doors adequately positioned to view,
access, and otherwise carry out all standard maintenance requirements without
enclosure panel disassembly. These activities include but may not be limited to oil
drain and fill, grease fitting and plug access, filter service, guard removal and
drivetrain replacement & alignment. Lift -out type doors shall not exceed 50lbs.
C. The enclosure must be equipped with a 120/1/60 forced air ventilation system. The
air ventilation fan shall be pre -installed on the enclosure and sized as necessary to
keep the assembly at a temperature needed to maintain proper operation as
recommended by the blower package manufacturer and must be pre -wired to a
thermostat. Blower shaft mounted fans are not acceptable due to hindering
maintenance and troubleshooting access at the blower. Also VFD operated
turndown speeds result in reduced ventilation airflow.
D. All exposed hardware, latches, hinges, door handles and similar must be highly
weather resistant such as stainless steel, chrome or aluminum.
E. The enclosure must be free standing and ship fully factory assembled and attached
to a steel sub -base. The sub -base structure must be designed to support the blower
package assembly and assembled noise enclosure. Vibration isolation pads or
mounts shall be installed between the blower package base and sub -base. The sub-
base must contain forklift pockets for ease of truck loading, off-loading and site
placement.
F. All pipe penetration holes in the enclosure shall be sized to allow for passage of
pipe fittings and/or flanges. Flashing rings shall be provided to seal all pipe
penetration holes after final assembly.
END OF SECTION
Optional Component Specifications
X. Thermometer: Provide 50-300 to 50-500 degrees F scaled bulb & capillary type
thermometer to be remote panel mounted on the noise enclosure and factory
plumbed to the discharge side of the blower package. The thermometer bulb shall
be installed in a separable brass or stainless steel thermowell. The case shall be
weather tight and be of corrosion resistant material such as stainless steel,
aluminum or approved equal. Minimum size is 2-1/2" diameter and minimum
accuracy to be +/- 1 % of span per ASME B40.300 Grade 1A. Acceptable
manufactures are Wika, Ashcroft, Reotemp, Winters or approved equal.
X. High Discharge Pressure Switch: Provide a 1.5-15or30 psi adjustable scale
pressure switch to be remote mounted on the noise enclosure and connected to the
discharge side of the blower. The case shall be weather tight (NEMA 4X or IP66)
and be of corrosion resistant material such as stainless steel, aluminum or approved

equal. The switch output to be SPDT snap action and have a set point repeatability
of +/-1 % of the adjustable range. Acceptable manufactures are Ashcroft, United
Electric or approved equal.
A manual reset to be located at the control panel by the controls supplier.
X. High Discharge Temperature Switch: Provide a 100-400 degrees F adjustable scale
bulb & capillary type temperature switch to be remote mounted on the noise
enclosure and connected to the discharge side of the blower package. The switch
bulb shall be installed into a separable brass or stainless steel thermowell packed
with heat conductive paste. The case shall be weather tight (NEMA 4X or IP66) and
be of corrosion resistant material such as stainless steel, aluminum or approved
equal. The switch output to be SPDT snap action and have a set point repeatability
of +/-1 % of the adjustable range. Acceptable manufactures are Ashcroft, United
Electric or approved equal.
A manual reset to be located at the control panel by the controls supplier.
Optional Motor Feature Specifications
X. Winding Thermal Protaction: Motor must be equipped with One normally closed
snap -action bi-metallic thermostat per phase wired in series with leads brought out
to the main conduit box.
X. Anti -Condensate Heaters: Motor must be equipped with a 120 volt space heaters
with leads brought out to the main conduit box. Controls shall be designed as such
that the heater power leads are energized while the motor is idle and deenergized
when called to start.

Section 5
Construction Sequence Plan (Section 3, Item G)

SECTION 01014
CONSTRUCTION SEQUENCE
PART 1 GENERAL
1.01 EXISTING SITE CONDITIONS
A. Contractor shall coordinate with operations personnel to ensure continued
operation of existing units to maintain treatment and prevent overflows and
bypasses to waters of the State. The Contractor is responsible for the
continued operation of treatment units while accomplishing the construction
in a logical and preplanned order within the time allowed by the Contract
Documents.
B. Interconnections between exiting structures may require valve closures,
diversion of flow to new basins, and partial power shutdown. The
Contractor is responsible for coordinating with operations personnel prior to
attempting any such operations. Any corrective measures required to
facilitate these interconnects will be performed at no additional cost to the
Owner and without interrupting the plant operations.
C. The Contractor is responsible to coordinate laydown areas with the owner,
laydown areas will be identified in the pre -construction conference prior to
construction.
1.02 BYPASS PUMPING
A. Construction of the new 0.04 mgd aeration basin and secondary clarifier shall
be constructed prior to decommissioning of the existing steel package
treatment system. After completion of the new package treatment system,
the Contractor will be required to divert flow from the steel package WWTP
to the new pre -cast concrete unit. Bypass pumping must be installed prior to
modifying any interconnecting piping to ensure continued service and
prevent any overflows or bypasses at the facility.
B. The design, installation and operation of the temporary pumping system
shall be the Contractor's responsibility. The Contractor shall employ the
services of a vendor who can demonstrate to the engineer that he specializes
in the design and operation of temporary bypass pumping systems. The
vendor shall provide at least five (5) references of projects of a similar size

and complexity as this project performed by his firm within the past three
years. The bypass system shall meet the requirements of all codes and
regulatory agencies having jurisdiction. See section 02600 - Maintaining
Wastewater Flows for additional requirements for Bypass Pumping.
1.03 CLOSURE PLAN
A. The subject package wastewater treatment plant (WWTP) is located in
Davidson County, North Carolina. The wastewater from the WWTP
discharges to Abbotts Creek at latitude 35°58' 04"N and longitude 80°06'
02"W.
B. The WWTP will be replaced in the same vicinity by a unit of the same capacity
with a Equalization Tanks. To ensure that there will be no bypass of raw
sewerage to any nearby stream, construction will be completed with
emergency bypass pumping available.
C. The new WWTP will be constructed off site in sections. Just prior to its delivery,
the old 0.04 mgd WWTP's steel extended aeration tank will be taken off line
and removed. Disposal of residual solids will be pumped and hauled off site
for disposal. After the aeration tanks are removed and prior to the new WWTP
coming on line, influent to the WWTP will be conveyed to a 20,000-gal frac
holding tank and slowly drained into the remaining 0.04 mgd concrete WWTP.
Discharge from this system will be conveyed to the permitted outfall. NPDES
monitoring will continue throughout the construction period. Once the new
WWTP is in place the existing sewer lines will be diverted to the new plant. All
old WWTP equipment not being used in the new WWTP will be disinfect,
dismantle, and removed. The disturbed area around the WWTP will be graded,
filled with materials that will not settle, filled with top soil, seeded, and re-
graded appropriately. Yard piping abandoned in place will be cleared,
disinfected, cut and capped. Yard piping will be excavated and properly
disposed when appropriate. All disturbed areas will be re -graded to match
existing drainage pathways and re -vegetate the disturbed area. All sludge
remaining in the decommissioned WWTP units will be pumped by a sewage
hauler and disposed of at an off -site WWTP that accepts sewage hauler waste
to ensure no bypass or deposition of sludge to any nearby streams or
unapproved land plots.

Section 6
Engineering Calculations (Section 3, Item H)

Peak Day
280000 gallons
Flow out
195 gpm
PWW Average Daily Flow
194.4444 gpm
COD
258 mg/I
BOD/COD
0.6
Ibs of Solids / lb of BOD
0.9
Stored
Cumulative
Daily Flow Flow
In
Peak ADF
Volume In
Cumulative
Flow Out
Volume Out
Average Flow
Volume
Stored Volume
Time (Hrs)
Pattern gpm
gpm
Gallons
Flow In gpm
gpm
gpm
Out gpm
Gallons
Gallons
1
1
194.4
194.4
11666.7
11666.7
195.0
11700.0
11700.0
-33.3
0.0
2
0.5
97.2
194.4
5833.3
17500.0
195.0
11700.0
23400.0
-5866.7
0.0
3
0.5
97.2
194.4
5833.3
23333.3
195.0
11700.0
35100.0
-5866.7
0.0
4
0.4
77.8
194.4
4666.7
28000.0
195.0
11700.0
46800.0
-7033.3
0.0
5
0.5
97.2
194.4
5833.3
33833.3
195.0
11700.0
58500.0
-5866.7
0.0
6
0.8
155.6
194.4
9333.3
43166.7
195.0
11700.0
70200.0
-2366.7
0.0
7
1.7
330.6
194.4
19833.3
63000.0
195.0
11700.0
81900.0
8133.3
8133.3
8
1.3
252.8
194.4
15166.7
78166.7
195.0
11700.0
93600.0
3466.7
3466.7
9
1.1
213.9
194.4
12833.3
91000.0
195.0
11700.0
105300.0
1133.3
1133.3
10
1
194.4
194.4
11666.7
102666.7
195.0
11700.0
117000.0
-33.3
0.0
11
0.9
175.0
194.4
10500.0
113166.7
195.0
11700.0
128700.0
-1200.0
0.0
12
1.2
233.3
194.4
14000.0
127166.7
195.0
11700.0
140400.0
2300.0
2300.0
13
1.1
213.9
194.4
12833.3
140000.0
195.0
11700.0
152100.0
1133.3
1133.3
14
0.9
175.0
194.4
10500.0
150500.0
195.0
11700.0
163800.0
-1200.0
0.0
15
0.8
155.6
194.4
9333.3
159833.3
195.0
11700.0
175500.0
-2366.7
0.0
16
1
194.4
194.4
11666.7
171500.0
195.0
11700.0
187200.0
-33.3
0.0
17
1.5
291.7
194.4
17500.0
189000.0
195.0
11700.0
198900.0
5800.0
5800.0
18
1.6
311.1
194.4
18666.7
207666.7
195.0
11700.0
210600.0
6966.7
6966.7
19
1.2
233.3
194.4
14000.0
221666.7
195.0
11700.0
222300.0
2300.0
2300.0
20
1.1
213.9
194.4
12833.3
234500.0
195.0
11700.0
234000.0
1133.3
1133.3
21
1
194.4
194.4
11666.7
246166.7
195.0
11700.0
245700.0
-33.3
0.0
22
1
194.4
194.4
11666.7
257833.3
195.0
11700.0
257400.0
-33.3
0.0
23
0.9
175.0
194.4
10500.0
268333.3
195.0
11700.0
269100.0
-1200.0
0.0
24
1
194.4
194.4
11666.7
280000.0
195.0
11700.0
280800.0
-33.3
0.0
280000
280800
280800
8133.33

Willow Creek WWTP
Diurnal Flow Curve
350.0
300.0
250.0
4IZ1M
150.0
100.0
50.0
v
0.0
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24
Hour
Daily Flow Pattern
Flow Out gpm

300000.0
250000.0
200000.0
a
3 150000.0
0
LL
50000.0
M11
Equalization Hydrograph
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24
Hour
Cumulative Flow In gpm Average Flow Out gpm

Activated Sludge Design Calculations
Willow Creek WWTP
July, 2019
Input Data
1.0 Anticipated NPDES Discharae Limits:
1.01
1.02
1.03
1.04
1.05
1.06
1.07
1.08
1.09
Parameter
Monthly Average
Units
Daily Maximum
Units
Flow
0.08
MGD
MGD
BOD5 Summer
9.0
mg/1
13.5
m /l
BOD5 Winter
15.0
m /I
22.5
m /l
TSS
30.0
mg/1
45.0
m /l
NH3-N Summer
5.5
mg/1
27.5
m /l
NH3-N Winter
11.0
m /1
35.0
m /I
Fecal Coliform
200/100
ml
400/200
ml
Dissolved Oxygen
5.0
m /I
5.0
m /I
pH
6.0
s.u.
9.0
S.U.
2.0 Influent Characteristics: (Maximum Month)
2.01
2.02
2.03
2.04
2.05
2.06
2.07
Parameter
Quantity
Units
Reference
Page
Average Flow
0.08
MGD
Aqua
Peak Flow
0.40
MGD
Aqua
BOD5
300.00
m /I
Aqua
TSS
300.00
m /I
Aqua
NH3-N
25.0
mg/1
Aqua
TP
8.0
m /I
Aqua
TKN
40.0
1 m /I
lAqua
3.0 Effluent Reauired:
3.01
3.02
3.03
3.04
Parameter
I Quantity
Units
I Reference
Page
BOD5
1 5.0
m /I
jBell
TSS
15.0
m /I
Bell
NH3-N
2.0
m /I
Bell
Total Nitrogen
5.0
m /I
jBell
4.0 Desian Site Conditions:
4.01
4.02
4.03
4.04
4.05
4.06
4.07
4.08
4.09
4.10
4.11
Parameter
Quantity
Units
Reference
Page
Alpha a
0.65
Metcal & Eddy, Sanitaire Design Gude
286,4
Beta P
0.95
Metcal & Eddy, Sanitaire Design Guide
286,4
Theta 0
1.024
Metcal & Eddy, Sanitaire Design Gude
286, 4
Site Elevation
750
ft
Aqua
Water Depth
15.3
ft
Bell
Aerator Submergence
14.3
ft
Bell
SOTE
0.06
%
Sanitaire Desgn Guide
2
Oxygen Saturation T Csw
10.07
m /I
Sanitaire Design Guide
2
Water Temperature, °C
15
°C
Aqua
Air Temperature, °F
100
°F
Sanitaire Design Guide
3
Site Barometric Pressure, P
14.3
psia
Aqua
5.0 Process Kinetics
5.01
5.02
5.03
5.04
5.05
5.06
5.07
5.08
5.09
5.10
5.11
5.12
Parameter
Endogenous Decay Coeff., kd
Quantity
0.06
nits
g VSS/g VSS - day
Reference
MOP 8, Table 11.2, M&E pg. 394
Page
394
Maximum Yied Coeff., Y
0.6
mg VSS / mg BOO
MOP 8, Table 11.2, M&E p .394
394
MLSS
3300
m /l
Bell
Volatile Fraction
0.8
%
MLVSS
2640
m /l
Bell
Clarifier RAS Solids Concentration
8000
m /l
Bell
Maximum Specific Growth Rate
0.5
day'
Metcal & Eddy
702
DO Half Constant
1.3
Metcal & Eddy
703
Nitrification Growth Rate @ T
0.30
day'
Metcal & Eddy
702
Maximum Substrate Utilization
1.52
day'
Metcal & Eddy
701
Estimated % Denitrification
0.7
%
S ecific Ox en Uptake
15.0
m /I/hr
6.0 Aeration Constants
6.01
6.02
6.03
6.04
6.05
6.06
6.07
6.08
6.09
6.10
6.11
6.12
6.13
6.14
6.15
6.16
6.17
6.18
6.19
Parameter
Quantity
Units
Reference
Page
Safety Factor SF
1.25
Bell
Maximum BOD load / 1,000 cf
15
Ibs
10-States
Blowers Op erational 1 Standby)
1
NCDEQ
PD Blower Efficiency
0.7
%
Manufacturer
Residual D.O. After A.S.
2.0
m /l
NCDEQ, Min. 1 m /l
InletAirTemp
560.0
R
Gas Constant for Air, R
53.3
ft-lb / lb-R
Air Density
13.1
cf/lb
Max. Air Flow per Diffuser
5.0
CFM
Oxygen Transfer Eff. Coarse Bubble
0.75
%/ft
Oxygen Required for BOD5
1.5
lb 02 / lb BOD5
Oxygen Required for TKN
4.6
lb 02 / lb TKN
Oxygen Recovered for Denit.
2.5
lb 02 / lb NO3
Saturation T, Cs20
9.09
m /l
#O en/CF of Air
0.0175
lb 02 / CF Air
Pressure Drop Across Diffuser
0.10
psi
Coarse Bubble, Fine = 0.75 psi
Pressure Drop Across Pipes
0.5
psi
Calculated
Pressure Drop from Aging
0.001
psi
Coarse Bubble, Fine = 0.85 psi
Pressure loss per ft of Elevation
0.433
si
1/2.31

7.0 Correction for Temperature:
7.01
7.02
Activated Sludge Design Calculations
Willow Creek WWTP
July, 2019
Results
Parameter
Quantity
Units
Notes
Endogenous Decay Coeff.,kd
0.0533
day
Meximum Yied Coeff., Y
0.5329
mg VSS / mg BOD
8.0 Calculate Loadings
8.01
8.02
8.03
8.04
8.05
Parameter
Quantity
Units
Notes
BOD5
200.2
Ibs/da
TSS
200.2
Ibs/da
NH3-N
16.7
Ibs/da
TP
5.3
Ibs/da
TKN
26.7
Ibs/da
9.0 Calculate Air Requirements
9.01
9.02
9.03
9.04
9.05
9.06
9.07
9.08
9.09
9.10
9.11
Parameter
Quantity
Units
Notes
Oxygen Re uired for BOD5
300.24
lb/day
Oxygen Required for TKN
122.76
lb/day
NO3 De -Nitrified
23.35
lb/day
02 Recovered via DN
58.38
Ib/da
Actual Oxygen Required AOR
364.62
lb/day
AOR * SF
455.78
lb/clay
SOR(lb/day)
922.64
lb/day
SOR Ibs/hr
38.44
Ib/hr
OTE Coarse Bubble
0.060
%
SUM Coarse Bubble)
610.21
cfm
AOR/SOR Ratio
1 0.49
10.0 Determine Eauinment Size and Number of Diffusers
10.01
10.02
10.03
10.04
10.05
10.06
10.07
10.08
10.09
10.10
Parameter
Quantity
Units
Notes
BDP
6.79
psi
Calculate Blower ICFM
665.29
cfm
Number of Blowers
2
each
SCFM / Op rating Blower
610.21
cfm
ICFM / Operating Blower
665.29
cfm
Airflow
0.85
lb/sec.
Blower Horsepower, Pw
28.38
h
Calculate Diffuser Quantity11
Lbs AOR / Hp - Hr
0.67
Lbs SOR / H - Hr
1.35
11.0 Calculate Minimum Basin Size and RAS/WAS Flows
11.01
11.02
11.02
11.03
11.04
11.05
11.06
11.07
11.08
11.09
11.10
11.11
Parameter
Quantity
Units
Notes
Minimum Size to meet 10-States
99,813.12
gallons, Use
100,000
Determine F:M Ratio
0.091
Determine Minimum MCRT for Nitrification
9.88
days
Metcal & Eddy
702
Define MCRT
10.98
days, Use
15
Determine HRT
1.25
days
Determine HRT required for BOD5
0.4411
days
Metcal & Eddy
704
Determine Substrate Utilization Rate NH3-N
0.756
day'
Metcal & Eddy
702
Predicted Effluent Ammonia
0.40
m /I
Metcal & Eddy
702
Determine HDT for Nitrification
0.25
days
Calculate RAS Flow
39.01
9pm
Determine Mass to be Wasted
198.00
Ibs/da
Calculate WAS Flow
2.06
m
12.0 Calculate Aerobic Diaester Sizina
12.01
12.02
12.03
12.04
12.05
12.06
12.07
12.08
12.09
12.10
12.11
Parameter
Quantity
Units
Notes
Digester Feed Sludge Concentration
8,000
m /I
WEF, MOP FD-9
Digester Daily Sludge Volume
2,968
gpd
WEF, MOP FD-9
Desired Volatile Solids Reduction
45
%
WEF, MOP FD-9
Winter Slud e Age Required
110
Days
WEF, MOP FD-9
Mass at 80% Volatile
158
lbs/day VSS
Claculated
Digester Solids Concentration
20,000
m /I
2%
Required Volume of Digester
1486.172
cf
WEF, MOP FD-9
Required Volume with Safety Factor
1857.72
cf
Required Air Flow per unit of volume
25.00
scfm/1,000 cf
NCDEQ, 10-States
Volume in Gallons
13895.71
gallons, Use
21,500
Required Air Flow for Digester
71.86
scfm, Use
72
13 Calculate Clarifier Parameters
13.01
13.02
13.03
13.04
13.05
13.06
13.07
Parameter
Quantity
Units
Notes
Weir Le th Per Clarifier
7
ft
Actually 6.6 ft dual sided weir.
Number of Clarifiers in sevice
2
ea
1 out of service
Surface Area per clarifier
144
sf
Design peak hourly flow RAS+Q*SF
170,213
gpd
Surface Overflow Rate
591.02
d/sf
< 900 d/sf
Peak Solids Loading
26
d/sf
< 35 d/sf
Weir Loading Rate
8,597
1 gpd/ft
I< 20,000 d/ft
14 Calculate UV Dose
Previously Approved by NCDEQ

Vendor Information

Huber Technology, Inc.
9735 Northcross Center Court
Suite A
Huntersville, NC 28078
Office 704-949-1010
Fax [phone]
■ I I I_ T J_ 1
Project: Willow Creek - Aqua America, NC
Equipment: Rotamat Ro9-300-6
Proposal Date: June 19, 2019
Revision: 0

HUBER
..
WASTE wn. E H Sweu[•u
ROTAMAT Ro9 Design Information
ROTOMAT Ro9 Technical Data
Max Clear Water Flow Capacity
Peak Design Flow
TSS Rate
Channel Width Required
Wash Water consumption
Wash Water Pressure
ROTAMAT Ro9 Details
Model: ROTOMAT Ro9-300-6
Quantity
Material
Mounting
Screening Opening
Press Zone
Screen Wash/Spray Bar
Basket
Motor
Support structure
Anchor Bolts
Control Panel(s)
Warrenty
1
304L Stainless Steel Construction; picked and passivated in acid bath
Tank Mounted design
Perforated plate circular opening size: 1/4 inches (6 mm)
One (1) solenoid valves for compaction zone, 1-inch, 120 VAC, 2-way brass body,
Class 1 Division 1
One (1) solenoid valves for compaction zone, 1-inch, 120 VAC, 2-way brass body,
Class 1 Division 1
352 Incline basket; width: 12 inches (300 mm)
1.5HP, 460 VAC, 3ph, 60 Hz, Class 1 Division 1
Tank integrated auger support
M12 316L, Included
NEMA 4X Stainless Steel Enclosure, Allen Bradley PLC,
Allen Bradley PanelView, Huber Standard Components,
Preprogrammed and Factory Tested
1- Year Standard Warrenty Included

Pricing
HUBER
WAM WARM rjWW.$
I WOMEN �L�
ROTAMAT Rog
J� IL QUANTITY
Ro9-300-6 1
PRICE
Included
Standard Spare Parts Kit
1
Included
Control Panel
1
Included
Manufacturer's services
1
Included
TOTAL:
$82,500.00
Thank you for your interest in Huber Technology, Inc.'s ROTAMAT Ro9 unit. If you have any questions, please
do not hesitate to contact our Regional Sales Director or our local sales representative.
Technical Clarifications
1. Equipment specification is available upon request
2. If there are site -specific hydraulic constraints that must be applied, please consult the manufacturer's representative to
ensure compatibility with the proposed system
3. Huber Technology warrants all components of the system against faulty workmanship and materials for a period of 12
months from date of start-up or 18 months after shipment whichever occurs first
4. Budget estimate is based on Huber Technology's standard Terms & Conditions and is quoted in US$ unless otherwise
stated
5• Huber has estimated the Control Panel cost based information provided with the RFQ. If control panel information is not
provided with RFQ Huber will use a cost and scope of supply based on our standard panel. Huber reserves the right to
change the price and scope at time of bid based on the final plans and specifications.
6. All items listed as "Available Options" are not included in the budgetary pricing.
7. Equipment that is broken out in "Pricing" tab are only valid when packaged together
g Huber's optional Cold Weather package, If listed, includes heated motor windings, cold wether gearbox, heat tracing and
insulation of the screens rising pipe and discharge chute. This can be had in C1D1 configuration
9. All of Huber's standard machines and systems are manufactured from 304L stainless steel. Huber makes no
representation or warranties concerning the service life of the equipment against such abrasion or corrosion. The
concentration of chloride and hydrogen sulfide (H2S) in the equipment operating environment shall be kept below the
following values:
a. Chloride < 200 mg/I
b. Hydrogen sulfide (H2S) < 6 ppm

�J
.6� :��
�.� a��a. .:'� r r
_ i
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sa ' ,
'mac F _
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��

?' GARDNER DENVER
torbilt Sulwvlm�
The Sutor6iltl�' line of rotary positive displacement blowers ' 4
is the result of over 60 years experience in the design and
manufacture of superior industrial equipment. Supported by one of
the largest distributor networks in the industry, the field proven design
is a Legend. The SUfofBllt'"' series delivers pressure to 16 psig, vacuum
to 16" hg and flows to 14,OOo cfm. Available with mechanic seals.
ISO 9001 certified.
GARDNER DENVER
Ne11F1aw • �"
Revolutionary twisted trklobe HeliFlowT"
Innovative twisted three lobe impeller design results in lower pulse, '
lower vibration and lower noise while offering higher efficiency and
' higher pressure capabilities. Dual splash lubrication for heavy duty
service.
' GARDNER DENVER
DuroFlow°
The DuroFlowTM Industrial Series of Rotary Positive Displacement -
�f blowers have 40 plus years of proven performance and reliability. Y
1
Single -piece case and one-piece rotor shaft design offers superior
4
� strength and internal air sealing. Dual splash tube for heavy duty i*,
J service. Flows to 4300 cfm. Pressure to 15 psig, vacuum to 16" hg.
MGARDNER
DENVER
GycloBlower
I Helical Screw Rotor Design, provides smooth pulse free compression,
11 Quiet, highly efficient operation results in lower brake horsepowers
and significant power savings. Dual splash lube for heavy duty' 1
service. Airflow to 6700 cfm pressure to 20 psig and vacuum to 1 7"
I
Ing'
GQRDNEH DENVER
Authorized Distributor
Tol 800.92 1. 0002 ■ Fox 610.921.9727 6 www.excelsiorblower.corn

Custom Blower Packages
Custom Blower Package Features:
Elevated Steel Base has X-bracing underneath which
r provides a strong rigid structure.
G Structural Steel Legs are gusseted in two planes and
tied together with stringers.
3 Inlet and discharge silencers are standard equipment
and provide noise and pulsation reduction.
4 Standard motors are TEFL, 230/460V and have a
minimum service factor of 1.15.
5 Guards are constructed of expanded metal for easy
inspection of V-belts.
6 Units are available in v belt or direct drive configuration.
7 Standard accessories include a pressure relief valve,
check valve, and pressure gauge.
All units are available with
optional aluminum sound
enclosure for superior
noise reduction.
© 2014 Excelsior Blower Systems, Inc. Tel 800,921,0002 • Fox 610.921.9727 • www.excolsiorblower.com

Custom Blower Packages Featuring Gardner Denver Blowers
Custom Blower Package Features:
Structural Steel construction is rigid and adds mass
to the package minimizing vibration and extending
the life of all package components including the
blower, motor, silencers, and instrumentation.
2 Gussets and Angie Braces form a rigid base that
does not deflect or flex.
3 Machined Mounting pads for Cycloblowers and
Blowers with 10" or larger gear diameters eliminate
soft foot and allow a precise alignment of drives.
4 5ilicon and rubber flexible connectors on each side
of the blower minimize vibration transmission and
eliminate pipe stresses on the blower and silencers.
5 High Quality Components such as silencers and
pressure relief valves are standard accessories,
o�
5
dft WEEMO►'
3
nx
Tel 800.921,0002 • Fax [phone] www.excelslofblower. corn

Excelsior Standard Blower Packages
Standard Blower Package Features:
• Standard designs
■ Smaller footprint
• Heavy gauge discharge silencer
High Volume = Superior attenuation
• Available with or without integrated enclosure
Includes enclosure cooling fan
• Motor shaft mounted enclosure cooling fan
No additional V-belts
Oversized for use in VFD applications
Standard instrumentation package includes
Discharge Pressure Gauge
Differential Pressure Gauge for monitoring filter condition
Discharge Thermometer
Discharge Temperature Switch
VFD and HMI [optional]
• Integrated filter silencer or inlet silencer and piping
connection for remote mounting of inlet filter
• Easy maintenance
Motor Pivot Base provides automatic tensioning of V-belts
Oil drain lines with valves and all fill reservoirs make oil
changes simple and easy
Enclosure access panels provide full access to internal
components for maintenance
Model Matrix
0
MW
Airflow
Pressure
Package
(SCFM)
(PSIG}
Motor HP
Blower Models
2
150
15
10
Sutorbilt 2L, Sutorbilt 3M
2.5
200
15
20
Sutorbilt 3L, Sutorbilt 4M
3
300
15
25
Heliflow 406, Sutorbilt 4L
4
540
15
40
Heliflow 408, Sutorbilf 5M
5
1000
15
75
Heliflow 412, Sutorbilt 6M
6
1500
15
100
Heliflow 514, Sulorbilf 7M
8
2000
15
150
Heliflow 616, Sutorbilt 8M
10
3000
15
200
Heliflow 624, Sutorbilt 8L
Additional Models Avollable
U 2014 Excelsior Blower Systems, Inc.
Tel 800.921,0002 6 Fax [phone] • www.excelsiorblower.com

%_�Z
Excelsior Sound Enclosures and
Aluminum Structures
Sound enclosures for:
iI • Pp Blowers
I
AO
• Multi Stage Centrifugal Blowers
• Reciprocating and Screw Compressors
• Pumps
■ Fans
Sound Enclosure Features:
• Aluminum exterior does not rust like galvanized, painted or
powder coated structures
• Enclosures have hinged or lift-off access doors as standard
equipment
Open cell Acoustical foam absorbs high frequency noise
• Optional construction with vinyl mat provides mass to
significantly reduce low frequency noise
• Galvanized perforated steel liner positively retains acoustical
foam and vinyl. There is no glue to degrade
• Thermostatically controlled and prewired exhaust fan provides
enclosure cooling.
• Each unit is custom designed to meet your noise requirements
and dimensions
Tel 800,921.0002 • Fax [phone] • www.excelsiorblower.com Q 2014 Excelsior Blower Systems, Inc.

Engineered Products
Air Cooled Heat Exchangers
Water Cooled Heat Exchangers
Oil and Glycol Coolers
Purge Air Heater Blowers
Pipe and Pump Skids
r4 r-�•� :apt, --;
fe (.Wq N
y 1
Gas Boosters
Fan Skids
lw
0 2014 Excelsior Blower Systems, Inc.

Excelsior Service and Repair
In shop repairs and rebuilds
Field Troubleshooting
Onsite repairs
Blower removal and installation
Startup
Preventive Maintenance Services
Laser alignment
Gardner Denver Factory Authorized Service Center
• Multi -Stage Centrifugal Blowers
• PD Blowers
Blower Retrofits
Excelsior can install a Gardner Denver blower onto
your existing package
Problematic blowers become trouble free
Gardner Denver blowers have local service
and low replacement parts cost
Examples of successful replacements
■ Heliflow 408 to replace Kaesor Omega P41
• Heliflow 514 to replace Aerzen GM Series
• Heliflow 616 to replace Durotlow 7015
• Sutorbiit Legend to replace Roots URAI Series
Excelsior can supply the engineering to retrofit a new blower
into an existing package
Blower Parts & Accessories
Positive Displacement Blowers Check Valves
Centrifugal Blowers Relief Valves
Air Filters Gaskets
V-Belts & Drives Silencers
Parts & Overhaul kits Oil
w � �1111uu'�
Global service
Corporate Headquarters
Excelsior Blower Systems, Inc.
331 June Ave.
Blandon, PA 19510
Tel [phone]
Fax [phone]
www- exc elsiorb lowe r. c om
Represented by

6/18/2019 Bell Engineering Mail - Aqua Package WWTP -- HK Bell -- Trojan UV
Gmafl-
David Schrader <[e-mail]>
t>xC`,txxk[c
Aqua Package WWTP -- HK Bell -- Trojan UV
1 message
Jim Grant <[e-mail]> Fri, May 17, 2019 at 6:16 PM
To: David Schrader <[e-mail]>
See below snapshot of matrix sizing table.
T rojan W 3000 -PTA - S'¢Vng Table I RED-30md7cml.I
UVT (%fcr )
66
60
55
50
45
40,
37460
321000
27 G00
23300
NIA
NrA
• 1
3025F(
5.8J6
5.047
4I59
3.107
WA
NrA
74000
6, .coo
54.000
'rmo
NIA
NrA
•I
305i)K
I I.67
10094
B.517
7A13
WA
WA
31175K
112.000
95000
BI,000
10,000
NIA
W.7
• �
17.67
149M
12. T76
1041
NIA
WA
3iD01(
140.000
120,000
105.000
W.coo
NrA
Wa
22.fA
18.927
16.561
14196
N1A
WA
m'qr
280.000
240.000
21OX0
M 000
NANfA
32U01{
44.16
37.854
33.M
28.381
WA
WA
nr'iNr
3300K
420.000
360,000
315A00
27MW
NIA
WA
6624
56.781
49.684
4296
WA
WA
�•�0
460,w00
426.040
'�fi0,000
WA
MMM
N!A
3d04ii
88.33
75.708
66.245
56.781
N!A
WA
i""w
3601)K
040.0p0
M2 XK
s30,m0
540.000
N!A
N:A
132.49
113.552
99.367
85172
WA
'; a
The basis design parameters to determine capacities in this table are
below.
east's
61onsay Dora : 30 OW Wd1 mQ i30m4tm2y Applcaps4 200 FC) 100 rrL. 30 ptr Ge0mOMt Wan
7olal Serspdfd SOds : t 30UQL Drsrfaalurl Lmll: 400 FCAGO at. Ilk) Awerage
muort Type ! A[SNalea sruage T K F-Muerf 126 E-1—OW $00 rrL 30Day Goxr'emc Mee
Comspondog sae10 Table: 252 ECOW 100 rrL I -On Awrige
The top flow shown in each block of the capacity table is GPD rating of a
single bank (i.e. 3200K rated for 280,000 GPD) given the basis design
parameters above. Per our discussion, we will use this as a basis for
peak flow. However, it is our recent experience that permits currently
issued have "daily max" in lieu of "7-day average" for the second limit. As
https://mail.google.com/mail/u/0?ik=0079cf6O4c&view=pt&search=all&permthid=thread-f%3Al 633819190589601074%7Cmsg-f%3A16338191905896.
1/5

6/18/2019 Bell Engineering Mail - Aqua Package WWTP -- HK Bell -- Trojan UV
a rule of thumb, this pushes us up one model (in this case from the 3200K
to the 3300K). Therefore, my recommendation is for the 3300K in
series (2 banks for full redundancy).
BUDGET PRICING
AVERAGE FLOW = 0.08 MGD / PEAK 0.28 MGD:
Selected Model D3300K (Dual SS in -line channels, Weir in channel),
CAD and PDF Dwg 3M0274D01 attached
Budget Price = $ 64,000.00
The TrojanUV3300TM PTP System price includes the following items
shown on drawing:
WN, IVA AINITe IM,
• Support rack for mounting UV modules
• Monitoring System (including UV Sensor)
• Power Distribution Receptacles
• Level Control Weir
• Stainless Steel Channel and inlet/outlet transition boxes (K-Models
only)
• Maintenance / Cleaning Rack
• Operator's Kit
• Standard Spare Parts (4 lamps, 4 sleeves and 4 lamp holders) per
bank
• Freight to the Job Site and standard warranty
• A day of startup training
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6/18/2019 Bell Engineering Mail - Aqua Package WWTP -- HK Bell -- Trojan UV
• Taxes not included.
Design parameters used in pricings are as follows:
• UVT =65%
• Bioassay Dose : 30,000 uW/cm2 (30mJ/cm2)
• Permit Disinfection Limit Fecal Coliforms
. 200 FC/100 mL, 30-Day Geometric Mean OR 400 FC/100 mL,
Daily Max
. 126 E-Coli/100 mL, 30-Day Geometric Mean OR 252 E-Coli/100
mL, Daily Max
Total Suspended Solids : 30mg/L
Effluent Type : Activated Sludge Clarified Effluent, Domestic
Waste
TrojanUV3000TMPTP Standard in
If this is the system you desire, we can provide a detailed specification for
your use. Let me know.
James (Jim) H. Grant, P.E.
EW2 Environmental, Inc.
Phone: [phone]
Fax: [phone]
Mobile: [phone]
E-mail: [e-mail]
See our equipment on our website: www.ew2.net
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6/18/2019 Bell Engineering Mail - Aqua Package WWTP -- HK Bell -- Trojan UV
From: David Schrader <[e-mail]>
Sent: Thursday, May 16, 2019 3:19 PM
To: Jim Grant <jgrant@ew2me�>
Subject: Aqua Package WWTP
Jim,
Thanks for taking my call this afternoon. As we discussed, Bell will be
working on the design for the replacement of an existing steel package
WWTP. We will need equipment selections for a Trojan UV3000 PTP unit
and an influent fine screen. An Envirocare, MultiRake or Sever Duty
screen will work. I just need an example of a similar install for our
meeting next Tuesday morning.
Design average daily flows are 0.08 MGD, with a peaking factor of 4,
peak flows should be around 0.32 MGD and transmissivity should be
65%. 1 would use the 3350K - PTP unit to be safe, unless the 400 count
maximum daily limit pushes it higher. If you have any questions or need
additional information, please call me.
Sincerely,
engineering
David F. Schrader, PE
Vice President
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6/18/2019 Bell Engineering Mail - Aqua Package WWTP -- HK Bell -- Trojan UV
P: 859-278-5412 1 C: 859-351-1263 1 F: 859-278-2911
[e-mail] I www.hkbell.com
2480 Fortune Drive, Suite 350
Lexington, KY 40509
�p Virus -free. www.avg.com
2 attachments
3M0274D01 UV3300K 1 Channel 2 Bank 2 Lamps Weir.DWG
255K
yn 3M0274D01 UV3300K 1 Channel 2 Bank 2 Lamps Weir.PDF
247K
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TROJANUV3000TMPTP
Wastewater
Disinfection

TROJAN 0V3000"PTP
Robust, operator -friendly solutions designed for economical disinfection
System Monitor/Control Center
The optional System Monitor
includes a submersible UV sensor,
and provides digital output of UV
intensity at each bank. Elapsed time
display provides continuous readout
of actual hours of operation (lamp
hours). A dry contact enables
a remote low UV intensity alarm.
Water Level Control
A fixed weir maintains the correct
channel effluent depth over different ,
flow rates, allowing a maximum
head loss of 1.5 inches (3.8 cm).
The system is also equipped with a
drain for easy channel cleaning, and
available for both concrete channels
and stainless steel channel option.
2

Electronic Ballast
,pa The electronic ballast is mounted within
its own Type 6P (IP67)-rated watertight
enclosure within the module frame and is
cooled by convection.
Power Distribution
Stainless Steel Effluent Channel
UV lamps are mounted on stainless steel
frames. Lamps are enclosed in quartz
sleeves and submerged horizontally and
parallel to water flow. A bank is made
up of multiple modules placed in parallel
positions. All wiring, from ballasts to lamps,
runs inside the module frame. A display
showing individual lamp status is provided
on top of each module.
An optional Type 304 stainless steel channel,
complete with UV module support rack,
can be used. Channel can be installed as a
freestanding structure connected to flanged
pipes using the optional transition boxes.
3

Simple, Dependable UV Solutions
Proven, chemical -free disinfection from the industry leader
UV is the most effective, safe and environmentally friendly
way to disinfect wastewater. It provides broad-spectrum
protection against a wide range of pathogens, including
bacteria, viruses and chlorine -resistant protozoa (such as
Cryptosporidium and Giardia).
The TrojanUV3000T"°PTP (Packaged Treatment Plant) is a
simple, robust and operator -friendly UV systems used for
the disinfection of wastewater. This highly flexible system
has demonstrated effective and reliable performance around
the world. The TrojanUV3000PTP is pre-engineered for
quick, inexpensive installation with pipe runs using pre-
fabricated, flanged stainless steel channels, or into existing
chlorine contact basins and effluent channels.
The proven infrastructure of the TrojanUV3000PTP has
been continuously refined to enhance friendly operation.
Key Benefits
TrojanUV3000PTP
TROJAN UV3OOq'PTP
Increased operator, community and environmental safety. Uses environmentally friendly ultraviolet light — the
safest alternative for wastewater disinfection. No disinfection by-products are created and no chlorine compounds
are transported, stored or handled by plant staff.
Proven disinfection. Based on actual dose delivery testing (bioassay validation). Verified field performance data
eliminates sizing assumptions resulting from theoretical dose calculations.
Reduced engineering and installation costs. The TrojanUV3000PTP can be equipped with pre -fabricated
stainless steel channels and transition boxes for nline integration with existing flanged piping — thus minimizing
engineering and installation costs. The system can be easily retrofitted into existing chlorine contact tanks and
effluent channels, and comes pre -tested, pre -assembled and pre -wired to minimize installation costs.
Designed for simplicity and reliability. Systems are straightforward to operate and require minimal operator
involvement, thanks to modular design and robust components.
Operator -friendly maintenance. Our lamps are guaranteed for 12,000 hours of operation and can be replaced
without tools in less than three minutes per lamp. Modules are electrically separate, allowing a single module to be
removed without disrupting flow or taking the system offline.
Outdoor installation flexibility. All components can be installed outdoors, eliminating the need and costs of a
building, shelter and air conditioning for ballast cooling.
Well suited to changing regulations. Our systems do not have any negative impact on receiving waters, making
them strategically sound choice for long-term treatment as regulations continue to become increasingly stringent.
Guaranteed performance and comprehensive warranty. Our systems include a Lifetime Disinfection
Performance Guarantee.

TROJAN OV3000'PTP
Advanced, Self -Contained UV Modules
Compact footprint simplifies installation and eliminates air conditioning costs
Benefits:
• Space -saving, electronic ballasts
are housed in the modules
to minimize footprint size,
installation time and costs
• Convection cooling of the ballasts
eliminates costs associated with air
conditioning or forced -air cooling
• Lamps are protected in a fully -
submersible, Type 316 stainless
steel frame
3F D1A 111f3MO'FTF —
• All wiring and cables are safely
enclosed inside the waterproof The advanced, self-contained modules incorporate convection -cooled ballasts and feature a UV
module frame —fully protecting lamp status indicator (below) for at -a -glance confirmation that all lamps are operating.
them from effluent and UV light
• Modules are electrically separated
from each other, allowing them
to be individually removed for
maintenance and spare modules
quickly inserted to maintain
maximum performance
Module -mounted Ballasts
■ Streamlined modules minimize
head loss and prevent buildup of
debris on the lamps
• All module wiring is pre -installed
and factory -tested
• Take up less space and reduce footprint, minimizing installation time and costs
• Housing the ballasts in the module allows for natural convection cooling to dissipate the
Convection Cooling heat of the ballasts into the air
• The ballasts are kept sealed and protected
• No air conditioning or forced -air cooling required
• Some suppliers use external cabinets with forced -air cooling. This introduces dust
Clean, Water -tight Protection and moisture onto circuit boards and other electronic components, greatly reducing
the life of these components
• Internal housing in sealed modules keeps all components dry and clean
• All lamp/ballast wiring is contained within the module frame. This configuration
Internal Cabling protects wires and cables from exposure to effluent, debris fouling and UV light
• Internal cabling allows all electrical connections within the module to be factory -tested
k,

TROJAN W30WPTP
Proven Performance, Components and Design
Validated through regulatory -endorsed bioassay testing
Benefits:
• Performance data is generated
from actual field testing (bioassay
validation) over a range of flow
rates, effluent qualities and
UV transmittances
• Provides regulatory -endorsed
physical verification that systems
will perform as expected — ensuring
public and environmental safety
• Most accurate assessment of
system sizing needs
• Low-pressure lamps and ballasts
have proven their outstanding
reliability in thousands of installations
• Open -channel design allows
cost-effective installation into
existing effluent channels &
chlorine contact basins
• Systems can be installed outdoors
to reduce building capital costs
• Modular design is scalable for
precise sizing, and expandable
to meet new regulatory or
capacity requirements
Gravity -fed, open channel design delivers cost savings at installation through simple retrofits
into existing effluent channels and chlorine contact tanks. Rugged, proven components make
operation and maintenance extremely cost effective.
Designed & Built for Easy Maintenance
User-friendly design requires minimal service and operator involvement
Benefits:
• Lamps are warranted for
12,000 hours
• Routine maintenance can be
scheduled and completed
without disrupting disinfection
• Replacement of UV lamps can
be completed without tools
and requires less than three
minutes per lamp
Lightweight, self-contained modules are operator -friendly and make routine maintenance quick and
easy. Modules can be individually removed for periodic sleeve cleaning and lamp replacement after
12,000 hours. An optional, mobile cleaning rack simplifies maintenance procedures.
119

TROJAN W3000'PTP
Highly Flexible Installation Configurations
Pre-engineered for cost-effective integration with piping or channels
Benefits:
• Designed to meet disinfection
requirements with minimal
engineering costs
• Can be installed in series to
treat higher flows or provide
additional redundancy
• Pre-engineered stainless
steel channels with built-in
weirs are installed as a
freestanding structure
• Stainless steel channels are
easily integrated with existing
flanged piping using our highly
flexible transition boxes (Figure 1)
• Optional turn boxes minimize
system footprint by connecting
stainless steel channels and
allowing two banks in series to be
installed side -by -side (Figure 2)
• Transition boxes can be designed
for straight, left or right pipe
connections (Figure 3)
Figure 1: Banks in Series - Side View
Figure 3: Banks in Series - Overhead View
I`
Transition boxes allow pipe connection on any side
Pre-engineered for simple, effective, low-cost wastewater disinfection. The optional 304 stainless steel channels feature a UV module support rack, and
can be installed as a freestanding unit. Turn boxes and transition boxes allow systems to be incorporated with maximum flexibility and minimal footprint.
7

TROJAN UV30W
TrojanUIV3000'"PTP
System Characteristics
Typical Applications
Up to 3 MGD (473 m3/hr)
Lamp Type
Low-pressure
Ballast Type
Electronic; non -variable
Input Power Per Lamp
45 or 87.5 Watts
Lamp Configuration
Horizontal, parallel to flow
Module Configuration
2 or 4 lamps per module
Bank Configuration
Up to 10 modules per bank
Channel Configurations
Lamp Banks in Series
Up to 2
Channel Options
Stainless Steel (Trojan option)
or Concrete (by others)
Flanged Transition Connections
Optional for stainless steel channels
U-Turn Connector Box
Optional for stainless steel channels
Level Control Device Options
closure Ratings
System Monitor/Control Center
Fixed weir
Fibreglass
Ballast Enclosure
TYPE 6P (IP67)
Ballast Cooling Method
Convection; no air conditioning or forced air required
Installation Location
System Monitoring & Controls
Controller
Indoor or outdoor
Optional; Monitoring only
UV Intensity Monitoring
Optional
Flow Pacing
—
Inputs Required
None
Local Status Indication
Lamp Age (hours)
UV Intensity (mW/Cm2)
Remote Alarms
UV Intensity (4-20 mA)
Location
Indoor or outdoor
Maximum Distance from UV Channel
Electrical Requirements
Power Distribution
15 ft. (4.5 m)
Individual GFI Receptacles
Quantity Required
1 receptacle per 2 modules
Power Input
120V, single phase
TrojanUV is part of the Trojan Technologies group of businesses.
Head Office (Canada) Trojan Technologies Deutschland GmbH
3020 Gore Road, London, Ontario, Canada N5V 4T7 Aschaffenburger Str. 72, 63825 Sch6llkrippen, Germany
Telephone: [phone] Fax: [phone] Telephone: [phone] Fax: [phone]
www.trojanuv.com
For a list of our global offices, please visit trojanuv.com/contactus.
The products described in this publication may be protected by one or more patents in The United States of America, I
Canada and/or other countries. For a list of patents owned by Trojan Technologies, go to www.trojantechnologies.com. T RO✓ A N UV -
in Copyright 2018. TrojanUV - A Division of Trojan Technologies Group ULC. No part of this publication may be reproduced, stored
a retrieval system, or transmitted in any form or by any means without the written permission of Trojan Technologies. (0218) 1 T-11 T-1-1 -- R-INF«

Section 7
Residuals Management Plan (Section 3, Item T)

Residuals Management Plan
Willow Creek WWTP
July 2019
The Willow Creek WWTP (WWTP) currently send residual solids to a
municipal treatment facility for further disposal. The proposed Willow Creek WWTP
Rehabilitation project will significantly improve upon the facility' s existing residual
management strategy, eliminating all problematic components of the current design.
Excess solids at the WWTP are currently treated in a single 5,000-gallon aerobic
digester. The digester currently relies on a single mechanical aerator to keep the sludge
well -mixed and aerated. The digestor is really just an aerated sludge holding basin
with a manual decant. The operators currently drop a submersible pump into the basin
to decant clear water.
The proposed biosolids management process will add an additional aerobic digester to
allow for a more efficient digestion process. The aerobic digestor will be capable of
pathogen reduction to over 45% and sludge reduction.
In addition to improved sludge management, the proposed WWTP Rehabilitation
project will replace the existing problematic screening equipment in the influent pump
station with a screen located in a new headworks structure to remove non- organic
debris from the influent flow. The new screening unit will be a mechanical basket,
perforated plate design with 6 mm screen openings. The unit will be equipped
with a screw conveyor, spray wash system and compactor discharging the screened,
washed material into a dumpster. A manual bar screen with 1-inch bar spacing will
also be provided in the event the primary screening unit is out of service or has failed to
operate properly. The manually screened material will also be placed in the dumpster.
The dumpster will be hauled off -site for disposal, as is currently done.

AQUA
engineering