NC0021628_Special Order By Consent_20180717

WIIIISENGINEERS
July 13, 2018 1996.001 (34)
North Carolina Division of Water Resources
Point Source Branch
1617 Mail Service Center
Raleigh, North Carolina 27699-1617
Subject: Town of Norwood RECEIVED/DENR/DWR
Wastewater Facilities
Norwood Wastewater Treatment Plant JUL 17 2018
Special Order by Consent Application
Water Resources
Gentlemen: Permitting Section
The Town of Norwood plans to enter into a Special Order by Consent Agreement with the State
of North Carolina. The Norwood Wastewater Treatment Plant cannot be operated to achieve
consistent compliance with the current NPDES Permit.
On behalf of the Town,we are submitting the following items for your review and approval:
• One original and two copies of the executed Application for a Special Order by Consent
• Three copies of the Wastewater Treatment Plant Condition Assessment
• A check in the amount of$400 for the Application Fee
Should you have any questions or need additional information, please feel free to call me at
704.338.4668 or email me at [e-mail].
Yours very truly,
WILLI GIN% RS
C -rles A. Willis Jr., P.E., BCEE RECEIVED/DENR/DwR
Attachments JUL 17 2018
Water Resources
cc: Town of Norwood Permitting Section
10700 Sikes Place,Suite 115
Charlotte, North Carolina 28277
704.377.9844/NC License F-0114
�_ — ,

STATE OF NORTH CAROLINA
DEPARTMENT OF ENVIRONMENT AND NATURAL RESOURCES
DIVISION OF WATER RESOURCES
APPLICATION FOR A SPECIAL ORDER BY CONSENT (SOC)
I. PERMIT RELATED INFORMATION:
1. Applicant: Town of Norwood
2. Print or Type Owner's or Signing Official's Name and Title:
John Franklin Mullis, Town Administrator
3. Facility Name (as shown on Permit): Norwood WWTP
4. Owner Phone: [phone]
5. Owner Email: [e-mail]
4. Application Date: July 13,2018 JUL 1 2018
Water Resources
5. NPDES Permit No. (if applicable): NC0021628 permitting Section
II. PRE-APPLICATION MEETING:
Prior to submitting this completed application form, applicants must meet with the appropriate
regional office staff to discuss whether or not an SOC is appropriate for this situation. Please
note the date this meeting occurred and who represented the permittee:
Representative: John Hennessy Date: 4/17/2018
III. ADDITIONAL FLOW OR FLOW REALLOCATION: N/A
In accordance with NCGS 143-215.67(b), only facilities owned by a unit of government may
request additional flow.
Additional flow may be allowed under an SOC only in specific circumstances. These
circumstances may include eliminating discharges that are not compliant with an NPDES or
Non-discharge permit. These circumstances do not include failure to perform proper
maintenance of treatment systems, collection systems or disposal systems. When requesting
additional flow,the facility must include its justification and supporting documentation.
If the requested additional flow is non-domestic, the facility must be able to demonstrate the
ability to effectively treat the waste and dispose of residuals. The applicant must provide a
detailed analysis of the constituents in the proposed non-domestic wastewater.

The total domestic additional flow requested: gallons per day.
The total non-domestic additional flow requested: gallons per day.
The total additional flow(sum of the above): gallons per day.
Please attach a detailed description or project listing of the proposed allocation for additional
flow, with an explanation of how flow quantities were estimated. Further, any additional flow
requested must be justified by a complete analysis, by the permittee, that additional flow will not
adversely impact wastewater collection/treatment facilities or surface waters.
IV. NECESSITY NARRATIVE:
Please attach a narrative providing a detailed explanation of the circumstances regarding the
necessity of the proposed SOC. Include the following issues:
• Existing and/or unavoidable future violations(s)of permit conditions or limits(s),
• The existing treatment process and any process modifications that have been made to
date to ensure optimum performance of existing facilities,
• Collection system rehabilitation work completed or scheduled (including dates),
• Coordination with industrial users regarding their discharges or pretreatment facilities.
Identify any non-compliant significant industrial users and measure(s) proposed or
already taken to bring the pretreatment facilities back into compliance. If any industrial
facilities are currently under consent agreements, please attach these agreements,
• Date and outcome of last Industrial Waste Survey,
• Whether or not the facility is acting as a regional facility receiving wastewater from other
municipalities having independent pretreatment programs.
V. CERTIFICATION:
The applicant must submit a report prepared by an independent professional with expertise in
wastewater treatment. This report must address the following:
• An evaluation of existing treatment units, operational procedures and recommendations
as to how the efficiencies of these facilities can be maximized. The person in charge of
such evaluation must sign this document.
• A certification that these facilities could not be operated in a manner that would achieve
compliance with final permit limits. The person making such determination must sign
this certification.
• The effluent limits that the facility could be expected to meet if operated at their
maximum efficiency during the term of the requested SOC (be sure to consider interim
construction phases).
• Any other actions taken to correct problems prior to requesting the SOC.
2

VI. PREDICTED COMPLIANCE SCHEDULE:
The applicant must submit a detailed listing of activities along with time frames that are
necessary to bring the facility into compliance. This schedule should include milestone dates for
beginning construction, ending construction, and achieving final compliance at a minimum. In
determining the milestone dates,the following should be considered:
• Time for submitting plans, specifications and appropriate engineering reports to DWR for
review and approval.
• Occurrence of major construction activities that are likely to affect facility performance
(units out of service, diversion of flows, etc.)to include a plan of action to minimize
impacts to surface waters.
• Infiltration/Inflow work, if necessary.
• Industrial users achieving compliance with their pretreatment permits if applicable.
• Toxicity Reduction Evaluations(TRE), if necessary.
VII. FUNDING SOURCES IDENTIFICATION:
The applicant must list the sources of funds utilized to complete the work needed to bring the
facility into compliance. Possible funding sources include but are not limited to loan
commitments, bonds, letters of credit, block grants and cash reserves. The applicant must show
that the funds are available, or can be secured in time to meet the schedule outlined as part of this
application.
If funding is not available at the beginning of the SOC process,the permittee must submit a copy
of all funding applications to ensure that all efforts are being made to secure such funds.
Note: A copy of the application should be sufficient to demonstrate timeliness unless regional
office has reason to request all information associated with securing funding.
THE DIVISION OF WATER RESOURCES WILL NOT ACCEPT THIS APPLICATION
PACKAGE UNLESS ALL OF THE APPLICABLE ITEMS ARE INCLUDED WITH THE
SUBMITTAL.
Required Items:
a. One original and two copies of the completed and appropriately executed application
form, along with all required attachments.
• If the SOC is for a City / Town, the person signing the SOC must be a ranking
elected official or other duly authorized employee.
• If the SOC is for a Corporation / Company / Industry / Other, the person signing
the SOC must be a principal executive officer of at least the level of vice-
president, or his duly authorized representative.
• If the SOC is for a School District, the person signing the SOC must be the
Superintendent of Schools or other duly authorized employee.
3

Note: Reference to signatory requirements in SOCs may be found in the North
Carolina Administrative Code [T15A NCAC 2H .1206(a)(3)].
b. The non-refundable Special Order by Consent (SOC) processing fee of$400.00. A
check must be made payable to The Department of Environment and Natural
Resources.
c. An evaluation report prepared by an independent consultant with expertise in
wastewater. (in triplicate)
APPLICANT'S CERTIFICATION:
(NO MODIFICATION TO THIS CERTIFICATION IS ACCEPTABLE)
I, John Franklin Mullis, attest this application for a Special Order by Consent (SOC) has been
reviewed by me and is accurate and complete to the best of my knowledge. I understand if all
required parts of this application are not completed and if all required supporting information and
attachments are not included, this application package may be returned as incomplete. (Please
be advised that the return of this application does not prevent DWR from collecting all
outstanding penalties upon request). Furthermore, I attest by my signature that I fully
understand that an upfront penalty, which may satisfy as a full settlement of outstanding
violations, may be imposed. {Note: Reference to upfront penalties in Special Orders by
Consent may be found in the North Carolina Administrative Code [T15A NCAC 2H
.1206(c)(3)].}
Date 7 i 2 l$
Sign.el,of Signing Official
John Franklin Mullis
Printed Name of Signing Official
THE COMPLETED APPLICATION PACKAGE, INCLUDING THE ORIGINAL AND TWO
COPIES OF ALL SUPPORTING INFORMATION AND MATERIALS, SHOULD BE SENT
TO THE FOLLOWING ADDRESS:
NORTH CAROLINA DIVISION OF WATER RESOURCES
POINT SOURCE BRANCH
1617 MAIL SERVICE CENTER
RALEIGH,NORTH CAROLINA 27699-1617
IF THIS APPLICATION IS FOR A NON-DISCHARGE SYSTEM, THEN SEND TO:
NORTH CAROLINA DIVISION OF WATER QUALITY
AQUIFER PROTECTION SECTION
1636 MAIL SERVICE CENTER
RALEIGH,NORTH CAROLINA 27699-1636
4

RESOLUTION FOR A SPECIAL ORDER BY CONSENT(SOC)
WHEREAS: The Town of Norwood has a permit to discharge treated wastewater to the
Rocky River, classified C waters of this State in the Yadkin-Pee Dee River
Basin; and
WHEREAS: This discharge is allowed under NPDES Permit Number NC0021628
effective February 1, 2014, and scheduled to expire on January 31, 2019;
and
WHEREAS: The Norwood WWTP intends to address and resolve specific issues due to
aging infrastructure that has led to equipment failure of a clarifier,which
has been classified as a critical and ke
component of the
Y p WWTP; and
WHEREAS: The Norwood WWTP agrees to maintain and operate the wastewater
treatment system at its maximum level of efficiency during the interim
period of the Special Order by Consent and thereafter; and
WHEREAS: The Norwood WWTP has or will secure funding for necessary treatment
plant improvements in the form of grants, loans, or other cash reserves;
and
WHEREAS: The Norwood WWTP hereby authorizes John Franklin Mullis,Town
Administrator, to have the authority to sign and execute the Special Order
by Consent on behalf of The Town of Norwood; and
THEREFORE, BE IT RESOLVED that the Norwood WWTP requests a Special Order by
Consent from the Environmental Management Commission and the Town hereby authorizes
John Franklin Mullis,Town Administrator, to sign and execute this document on behalf of The
Town of Norwood.
Adopted this 12 day of April , 2018.
John Franklin Mullis,Town Administrator
(Type or Print) Full Name and Title of person authorized to execute SOC
ture) ull Name of person auorize to execute OC
Linda Woodle Campbell Town/City Seal
Type or Print) Full Name 61 Mayor Pro Tem is to be placed here.
6' LS 0/ tiper17A-C)9„
-
(Signature)Full Name of Mayor Pro T )

CERTIFICATION BY RECORDING OFFICER
The undersigned duly qualified and acting Town Administrator of the Town of Norwood does hereby
certify: That the above/attached resolution is a true and correct copy of the resolution authorizing the
filing of an application with the State of North Carolina, as regularly adopted at a legally convened
meeting of the Town of Norwood duly held on the 12 day of APRIL 2018; and,
further, that such resolution has been fully recorded in the journal of proceedings and records in my
office. IN WITNESS WHEREOF, I have hereunto set my hand this 12 day of APRIL , 2018.
i
111
(Signa ure o 'ecording Officer)
TO LOPA-bpni';‘,,S cTDtL-
(Title of Recording Officer)

Town of Norwood, North Carolina
Norwood WWTP Renovation
SOC Application Narrative
Prepared By: Charles A. Willis,Jr., P.E., BCEE
Steven E. Gerlach, E.I.
Willis Engineers(F-0114)
10700 Sikes Place,Suite 115
Charlotte, North Carolina 28277 ,*` Os,.•*; SS O '-'5'
Date: July 13, 2018 _ SEAL
17710
Contents CI,'%../1/G
' INE.- >�',:
1. Necessity °� �'
is
it
2. Certification
3. Predicted Compliance Schedule 13 `Nl 18
4. Funding Source Identification
Attachments
Site Diagram
WWTP Condition Assessment
Certification of Non-Compliance
CWSRF Funding Application
USDA Correspondence
1. Necessity
The Norwood Wastewater Treatment Plant (WWTP), located in Stanly County, North Carolina, is a
0.75 MGD facility that treats the wastewater of approximately 2,400 people. In addition to residential
customers,the Norwood WWTP receives wastewater from several industrial users located within the
Town.The Town of Norwood is likely non-compliant on their Pre-Treatment Program.The Town has
recently appointed a new Town Administrator who acknowledges that there have been no annual
site visits to their Significant Industrial Users in the past two years, and the program needs to be
updated.
The Norwood WWTP was constructed in 1971 and has not received any major upgrades since. As a
result, these facilities are showing significant signs of age and deterioration, which have resulted in
equipment failures and NPDES Permit Violations. There are numerous deficiencies throughout the
WWTP that contribute to the Violations.
WIIIISENGINEERS

Wastewater is transmitted to the Norwood WWTP by a 12" pipeline. Once arriving at the facility,
wastewater enters a concrete headworks basin containing screening equipment, a grit removal
system and a Parshall flume. After leaving the headworks, the wastewater is conveyed to a splitter
box to be divided equally before flowing to the aeration basins. The WWTP has two 375,000-gallon
aeration basins each equipped with two mechanical aerators controlled by timers to provide the air
required for the activated sludge process. After the activated sludge process is complete, the mixed
liquor exits the aeration basins through a vertical cast iron outlet pipe and flows into a diversion box,
and then to the secondary clarifiers.The WWTP is equipped with two 33-foot diameter clarifiers that
separate the microbial mass accumulated in the activated sludge process from the treated
wastewater. Once separated,the treated wastewater is then conveyed to chlorine contact basins for
disinfection.After the water is dechlorinated, it is conveyed through an effluent pipe and discharged
to Rocky River.The general arrangement of the facilities is presented in the Site Diagram Attachment.
The headworks of the WWTP, which contains the influent screening, grit removal, and flow
monitoring, is problematic and a significant contributor to the Violations. In general, the concrete
structure is too small and provides too little freeboard, resulting in regular overflows during high flow
events.The mechanical screen has a large hole in it,and is not properly sized for its channel, resulting
in a high level of solids bypass. Because the screen is not functioning properly,there is a large amount
of rags and debris within the aeration basins.As a result,the aerators require frequent maintenance
and cleaning.The grit classifier is in operation but not removing any grit; the lower half of the auger
appears to be broken or missing. Additionally, the Parshall flume within the headworks is unable to
get accurate readings due to the geometry of the headworks box creating turbulent water conditions.
The mechanical equipment within one of the two secondary clarifiers has failed due to old age. As a
result, the WWTP has now been in operation with only one 33-foot clarifier in service for more than
a year. This single clarifier is significantly undersized for the peak flows expected at the WWTP.
Furthermore,the facilities utilize slide gates inside of diversion boxes for process isolation, and most
of the gates are damaged and do not function properly. As a result, for the clarifier to be taken out
of service, its corresponding aeration basin must also be taken out of service due to the inability to
operate the slide gates. Because of this,the WWTP must operate at 50%treatment capacity until the
clarifier is repaired.The Town has indicated repairs will be undertaken in the summer of 2018.
The WWTP lacks any form of SCADA and the existing RAS pump and Generator Controls (automatic
transfer switch) do not function. In the event of a power outage, this equipment must be manually
started. There is no way for an operator to tell if the WWTP has lost power unless they are at the
WWTP. In the event of a weekend power outage, several days could pass before it is discovered.
The WWTP is contract operated by Envirolink, Inc., and they have acknowledged the lack of SCADA
has made operation of the facilities very difficult. Because there is no RAS / WAS sludge flow
monitoring, dissolved oxygen or pH monitoring at the WWTP, the operator must make process
decisions based on very limited operating data. Additionally, because of the damaged clarifier and
Town of Norwood
July 2018 2 SOC Application Narrative

state of the diversion boxes, the current facilities are operating with the headworks, one aeration
basin, one clarifier, and two chlorine contact basins (essentially 50% capacity). This configuration
gives very little flexibility for process modifications, and this reduced capacity simply cannot handle
peak flow events.
2. Certification
A Condition Assessment of the Norwood WWTP was prepared by Willis Engineers. This full Report
has been included in the attachments section of this Narrative. Although this Report was not
specifically prepared for this application, it addresses the requirements of the Certification section
on the Application for a Special Order by Consent.
Section 4 of the Report presents the expected Plant performance based on the facility's current
configuration. This section was developed through the use of BioWin Wastewater Modeling
Software. The key observation from these modeling efforts is that during current average flow
conditions, the WWTP could theoretically meet its Permit Limits; however, as Section 4.2.3 of the
Report indicates, the WWTP is highly susceptible to washouts from peak flow events.
The Envirolink Staff operates the WWTP at their optimum efficiency given the current state of the
unit processes.Therefore, during the term of the SOC, the facilities could expect a similar effluent to
the values shown in Section 4.2.1 Table 2 of the Report.As demonstrated in Section 4 of the Report,
the treatment abilities of these facilities are extremely vulnerable to high flow events, but as the new
unit processes are added, the facilities will only become more robust and resilient to varying flow
conditions.
In addition to the Report, a signed Certification of Non-Compliance is provided in the Attachments.
This Certification states that during certain flow conditions, the facilities cannot be operated in a
manner that would allow consistent compliance with the current NPDES Permit.
3. Predicted Compliance Schedule
The Norwood WWTP Renovation project would consist of both major and minor task items. The
major construction components would consist of adding an all-in-one headworks facility, as well as a
50-foot secondary clarifier. The minor items would consist of adding a basic SCADA system, as well
as various electrical and site safety improvements.
Town of Norwood
July 2018 3 SOC Application Narrative

Below is a summary discussing the anticipated timeline for the project.
2018 Funding Acquisition, Engineer Selection
2019 Design Phase, Regulatory Submission
2020 Regulatory Approval, Bidding and Award
2021 Construction Start
2022 Construction Completion, Norwood WWTP in Compliance
During the major construction activities in 2020 and 2021, the land disturbances during clarifier
excavation will produce some sediment.To minimize the negative environmental impacts,applicable
erosion and sediment control measures outlined in the Erosion and Sediment Control Planning and
Design Manual would be implemented to prevent any offsite sedimentation.
4. Funding Source Identification
The Town of Norwood has submitted an application to the Clean Water State Revolving Fund.A copy
of this application can be found in the CWSRF Funding Attachment.
Additionally, the Town has been in correspondence with H. Allen Hart and Lynn Whittington of the
US Department of Agriculture about the potential for Water&Waste Disposal Loan&Grant Program,
although the application process for this has not yet been completed. Correspondence between the
Town of Norwood and the USDA have been included in the USDA correspondence section of this
Report.The Town intends to apply for a USDA loan.
Town of Norwood
July 2018 4 SOC Application Narrative

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LEGEND: PIPING SCHEDULE:
O1 HEADWORKS O7 GENERATOR BUILDINGS FLOW
0 DIVERSION BOX O8 SCUM PIT SLUDGE
® AERATION BASIN ® CONTROL BUILDING / PUMP STATION DRAIN
® SECONDARY CLARIFIER 0 SLUDGE DRYING BED 0 MANHOLE
® CHLORINE CONTACT BASIN >> SLUDGE STORAGE TANK
© CHEMICAL BUILDINGS
TOWN OF NORW00D JULY 2018
WTP
WIOISENGINEERS Soc APPLICATIONWOO
SITESITE DIAGRAM ATTACHMENT 1
II

Certification of Non-Compliance
On behalf of the Town of Norwood, I,Charles A.Willis,Jr., P.E., BCEE of Willis Engineers, Inc. hereby certify
that the Norwood Wastewater Treatment Plant, located in Norwood, North Carolina, cannot be operated
in a manner that would achieve consistent compliance with their NPDES Permit Limits.
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Signature 1, e51'.;• ' Date
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WIIIISENGINEERS
April 27, 2018 1996.001 (34)
Division of Water Infrastructure
8th Floor, Archdale Building
512 North Salisbury Street
Raleigh, NC 27604
Subject: Application for Funding
Wastewater Facilities
Norwood WWTP Renovation
To whom it may concern:
On behalf of the Town of Norwood, Willis Engineers would like to submit one original and one
copy of the Application for Funding to the Division of Water Infrastructure.
Should you have any questions, please let us know.
Yours very truly,
WILLIS ENGINEERS
Charles A. Willis,Jr., P.E., BCEE
Enclosures
10700 Sikes Place,Suite 115
Charlotte,North Carolina 28277
704.377.9844/NC License F-0114

North Carolina Department of Environmental
Quality
Division of Water Infrastructure
Water Infrastructure Application for Funding
ENVIRONMENTAL QUALITY
(Last updated:March 2018)
1. General Information
Fill in the blanks and check the appropriate boxes.
Applicant Name County DUNS Number(www.sam.gov)
Town of Norwood Stanly
Project Name Funding Amount Requested
Norwood WWTP Renovation $4,271,000
Applicant Type
® Municipality ❑ Sanitary District
❑ County ❑ Non-Profit Water Corporation
❑ Water and Sewer District ❑ Other(Specify: )
❑ Water and Sewer Authority
Funding Type(s)Requested
El Asset Inventory and Assessment Grant ❑ Community Development Block Grant for Infrastructuret
❑ Merger/Regionalization Feasibility Grant 'All CDBG-1 grants are 100%grants.
® Construction Project LMI determination method:
❑ Drinking Water(all funding except CDBG-I) ❑ Survey ❑ ACS
® Wastewater(all funding except CDBG-I) LMI Percentage:
0 Stormwater,stream restoration
1. I am willing to accept funding that includes federal conditions. ® Yes 0 No
2. Estimated grant percentage as calculated on the Affordability Criteria Information form:
❑ 0% ® 25% 0 50% ❑ 75% El 100%
3. If grant funding is not available at the percentage provided above,I am willing to accept a minimal grant amount of*:
® 0%(100%Loan) ❑ 25% 0 50% ❑ 75% ❑ 100%
*If available grant amount is below the percentage listed above,project will not be funded.
2. Percentage of Bills Collected and Rate Increases
List the percentage of utility bills collected and any rate increases for the past five years.
Year Percentage of Utility Bills Collected Rate Increase Percentage
2013 _ >99% -
2014 >99% 21.3%
2015 >99% 5.0%
2016 >99% 0.0%
2017 >99% 0.0%
(OVER)
Page 1 of 6

3. Applicant Contact Information
Authorized Representative Name: John Mullis
Authorized Representative Title: Town Administrator
Mailing Address Line 1: 116 South Main Street
Mailing Address Line 2: PO Box 697
City: Norwood
State: NC
Zip Code: 28128
Phone Number: 704-474-3416
E-Mail Address: [e-mail]
4. Application Preparer Contact Information
Provide the following contact information for the application preparer.
Firm Name: Willis Engineers,Inc.
Contact Name: Chuck A.Willis,Jr.,P.E.,BCEE
Mailing Address Line 1: 10700 Sikes Place
Mailing Address Line 2: Suite 115
City: Charlotte
State: NC
Zip Code: 28277
Phone Number: 704-533-3945
E-Mail Address: [e-mail]
5. Engineer Contact Information
Provide the following contact information for the engineer if"Yes."
Is the engineering firm different from the application
preparer? ❑ Yes ® No
Engineering Firm Name:
Contact Name:
Mailing Address 1:
Mailing Address 2:
City:
State:
Zip Code:
Phone Number:
E-Mail Address:
Page 2 of 6

6. Project Description
In the space below,please provide a description of the project. Inc luck in this description the project purpose(eg., to address 1/1
issues or drinking water contamination issues)and what the project entails(e.g.,rehabilitation of 2,000 IIf of sewer,construction of
a new well). Include information such as types of equipment to be included,capacity of equipment(if applicable),and estimates of
line length.
Number of New Connections Served by Project(if applicable): n/a
The purpose of this project is to replace damaged,undersized,or unsafe mechanical equipment that has resulted in numerous
NPDES Permit violations or created significant safety hazards.Ideally,the WWTP will be renovated in its entirety to bring the
facilities up to industry and safety standards.This renovation will include a new headworks facility with screening,grit removal,
and flow monitoring;aeration basin improvements;two new clarifiers sized for peak flows as well as sludge pumping system;an
ultraviolet disinfection system;electrical improvements and SCADA additions.
Aside from treatment improvements,there are several safety hazards on site that would be corrected as part of this renovation.
Some of these hazards include lack of adequate handrails around any of the unit processes,abandoned energized electrical panels,
and a damaged perimeter fence.
7. Additional Information for Consideration
Please provide additional information about the project in the following space below. The additional information must fit in this
space and must be provided in accordance with Supplemental Guidance for the Ranking of Applications&Providing Additional
Information for Consideration. Note: This item does not apply to the Drinking Water State Revolving Fund program.
The headworks of the WWTP,which contains the influent screening,grit removal,and flow monitoring,will need replaced in its
entirety.The mechanical screen has a large hole in it and is not properly sized for its channel,resulting in a high level of solids
bypass.The grit classifier is in operation but not removing any grit whatsoever,leading us to believe the lower half of the auger is
broken or missing.The Parshall flume within the headworks is unable to get accurate readings due to the geometry of the
headworks structure creating turbulent flow conditions.In general,the concrete structure that makes up the headworks is too small
and provides too little free board,resulting in regular overflows.
Because the screening is not functioning properly,there are a large amount of rags and debris within the aeration basins.The
mechanical aerators require frequent maintenance and cleaning in order to remain functional.It is likely that there is a significant
accumulation of rags and debris within these aeration basins that will need removed at some point.Additionally,each aeration
basin relies on a single pipe to convey flows to the clarifiers.This single pipe design has created a flow(and treatment)imbalance,
and should be replaced with a more conventional weir system.
One of the two secondary clarifiers had a catastrophic failure of its mechanical components due to age.As a result,the WWTP has
now been in operation with only one 47 year old 33-foot clarifier in service for more than a year.This single clarifier is from the
original 1971 construction and significantly undersized for the peak flows expected at the WWTP.This clarifier,although still
functional, is also displaying heavy signs of wear from its age and may fail soon.
The WWTP relies on sluice gates for process isolation,but most of the gates are damaged and do not function properly.For,the
clarifier to be out of service requires,its corresponding aeration basin to also be out of service because of the damaged sluice gates.
As a result,the WWTP must operate at 50%treatment capacity until the clarifier is repaired.
The WWTP lacks any form of SCADA whatsoever,and the existing RAS pump and Generator Controls(automatic transfer
switch),do not function.This means that in the event of a power outage,this equipment must be manually started.There is no way
for an operator to tell if the WWTP has lost power unless he/she is at the WWTP site at all times.The facilities are contract
operated and there is not someone on site regularly,meaning that in the event of a weekend power outage,days could pass before it
is discovered.
The WWTP has various safety issues,such as lack of handrails and abandoned/potentially energized electrical equipment onsite.
(OVER)
Page 3 of 6

8. Project Budget(for Construction Projects Only)
Complete the project budget by addressing the categories provided in the table below(Insert rows as needed). Total the cost amount
for each line, and provide the total cost amount.
Division Funding Other Secured Funding Total Cost Amount
Requested Source(s)
Indicate construction costs by line item(e.g.,
linear feet of different-sized lines)
Construction Costs
Site(Including Safety,Demo,etc..) 420,000 420,000
2 x 50 ft Clarifiers(>20 years old) 1,100,000 1,100,000
RAS/WAS Pump Station(>20 years old) 300,000 300,000
Flow Diversion/Splitter(>20 years old) 30,000 30,000
Electrical Improvements(>20 years old) 370,000 370,000
Headworks('20 years old) 400,000 400,000
Sludge Flow Monitoring 40,000 40,000
Aeration Basin Improvements(>20 years old) 500,000 500,000
Ultraviolet Disinfection 250,000 250,000
Contingency(10°o of construction costs): 341,000 341,000
Construction Subtotal: 3,751,000 3,751,000
Engineering Costs
Engineering Design 380,000 _ 380,000
Permitting 30,000 30,000
Land Surveying Costs 20,000 20,000
Engineering Subtotal: 430,000 430,000
Administration Costs
Planning
Easement Preparation
Grant Administration(if applicable)
Loan Administration(if applicable) 10,000 10,000
ER Preparation 25,000 25,000
Environmental Documentation Preparation 15,000 15,000
Legal Costs 40,000 40,000
Other
Administration Subtotal: 90,000 90,000
TOTAL PROJECT COST: 4,271,000 •�,���►euc�ryiy, 4,271,000
,%•,`, N CAR°,
e�oeoFESSta�;�y
:Q SEAL
Please provide a PE Seal for the estimate in the space to the right. _ 0y917710
•
NC,• •
• . ...• fig•oe.
.\71' /.
JlBDjI .o I /
Page 4 of 6

f
Certification by Chief Elected Official/Authorized Representative
Please read each statement and initial in the space to the left.
The attached statements and exhibits are hereby made part of this application,and the undersigned representatives of the Applicant
certifies that the information in this application and the attached statements and exhibits is true,correct,and complete to the best of
his/her knowledge and belief. By initialing each item and signature at the end of this application,he/she further certifies that:
, .,r 1. as Authorized Representative,he/she has been authorized to file this application by formal action of the governing
• body;
i • 2. the governing body agrees to provide for proper maintenance and operation of the approved project after its
completion; j
r 3. the Applicant has substantially complied with or will comply with all federal,state,and local laws,rules,and
regulations and ordinances as applicable to this project;
i 4. the Applicant will adopt and place into effect on or before the completion of the project a schedule of fees and
II charges which will provide for the adequate and proper operation,maintenance,and administration and repayment
of all principle and interest on loans(if applicable)of the project;
. the Applicant has followed proper accounting and fiscal reporting procedures,as evidenced by the Applicant's most
recent audit report,and that the Applicant is in substantial compliance with provision of the general fiscal control
‘ laws of the State;
6. the project budget provided on Page 5 of this application form includes all funding requested from all sources of
tEl funding proposed for this project;and
i e(Town or County),North Carolina is organized and chartered under the laws of North Carolina. All officials
IP and employees are aware of,and in full compliance with NCGS 14-234,"Director of public trust contracting for his
own benefit,participation in business transaction involving public funds;exemptions." (For units of local
government only. All others should initial"N/A.")
A; 8. the Applicant acknowledges that all loans are subject to approval by the Local Government Commission.
,yi%/ . in accordance with G.S. 120-157.1 through 157.9,for local government debt to be issued greater than$1,000,000,
the local government must submit a letter to Committee Chairs,Committee Assistant,and the Fiscal Research
Division of the General Assembly at least 45 days prior to presentation before the Local Government Commission.
(OVER)
Page 5 of 6

Completeness Checklist*
In addition to this application, the following items must be included for a complete application package;please initial that each
item is included in this submittal.
Resolution by Governing Body of Applicant with Certification by Recording Officer
k,isss-. Division Financial Information and Fund Transfer Certification
esv Applicable Priority Rating System Form with supporting narratives and documentation
�C�--� Affordability Criteria Information Form
Form LGC 129 and any other supporting documentation(non-CDBG-I programs only)
Current Rate Sheets
Cl-'v
*All foams are available separately on the DWI website.
**For each application, please provide copies that are bound (e.g., report cover with fasteners, plastic report
combs,spiral or 3 ring-binders.) No paper clips, staples or binder clasps,for each application. **
Submittal Information
• For CDBG-I(Fall only),send one(1)original and two(2)copies of the Application.
• For all other programs,send one(1)original and one(1)copy of the Application.
• If submitting for both CDBG-I and construction projects,send(1)original and(3)copies of the Application.
Send complete Application package to:
Mailing Address'(US Postal Service only) Physical Address(FedEx.UPS)t
Division of Water Infrastructure Division of Water Infrastructure-8d Floor,Archdale Building
1633 Mail Service Center 512 North Salisbury Street
Raleigh,NC 27699-1633 Raleigh,NC 27604
919.7.07.9160
tPlease allow a week for delivery if mailing via the US Postal Service.
tFor all courier services,please use the physical address,as having a courier deliver to the mailing address will delay package
delivery.
Application Signature
Please note: Original signatures are required for each application.
1 ,s,,,\2:)kftakikt.:41 4.2.1
SIGNATURE OF AUTHORIZED REPRESENTATIVE
John Franklin Mullis Town Administrator , 7 -z_6- IF
TYPED NAME TYPED TITLE DATE
Page 6 of 6

RESOLUTION BY THE TOWN OF NORWOOD
WHEREAS, The Federal Clean Water Act Amendments of 1987 and the North Carolina the Water
Infrastructure Act of 2005 (NCGS 159G) have authorized the making of loans and grants
to aid eligible units of government in financing the cost of renovating the Town of
Norwood's wastewater treatment plant,and
WHEREAS, The Town of Norwood has need for and intends to renovate the Town's wastewater
treatment plant,described as Norwood Wastewater Treatment Plant Renovations, and
WHEREAS, The Town of Norwood intends to request state loan and grant assistance for the project,
NOW THEREFORE BE IT RESOLVED, BY THE COUNCIL OF THE TOWN OF NORWOOD:
That the Town of Norwood,the Applicant,will arrange financing for all remaining costs of
the project, if approved for a State grant award.
That the Applicant will adopt and place into effect on or before completion of the project
a schedule of fees and charges and other available funds which will provide adequate
funds for proper operation, maintenance, and administration of the system and the
repayment of all principal and interest on the debt.
That the governing body of the Applicant agrees to include in the loan agreement a
provision authorizing the State Treasurer, upon failure of the Town of Norwood to make
scheduled repayment of the loan,to withhold from the Town of Norwood any State funds
that would otherwise be distributed to the local government unit in an amount sufficient
to pay all sums then due and payable to the State as a repayment of the loan.
That the Applicant will provide for efficient operation and maintenance of the project on
completion of construction thereof.
That John Mullis,Town Administrator,the Authorized Official,and successors so titled, is
hereby authorized to execute and file an application on behalf of the Applicant with the
State of North Carolina for a loan or grant to aid in the construction of the project
described above.
That the Authorized Official, and successors so titled, is hereby authorized and directed
to furnish such information as the appropriate State agency may request in connection
with such application or the project: to make the assurances as contained above;and to
execute such other documents as may be required in connection with the application.
That the Applicant has substantially complied or will substantially comply with all Federal,
State, and local laws, rules, regulations, and ordinances applicable to the project and to
Federal and State grants and loans pertaining thereto.
Adopted this the April 12 ,2018 at the Norwood Town Hall,
North Carolina.
c S C
(Signature of Chief Executive icer)
4)SC ` fE —A--LIYM
(Title)

CERTIFICATION BY RECORDING OFFICER
The undersigned duly qualified and acting Town Administrator of the Town of Norwood does hereby
certify: That the above/attached resolution is a true and correct copy of the resolution authorizing the
filing of an application with the State of North Carolina, as regularly adopted at a legally convened
meeting of the Town of Norwood duly held on the 12 day of APRIL ,2018; and,
further, that such resolution has been fully recorded in the journal of proceedings and records in my
office. IN WITNESS WHEREOF, I have hereunto set my hand this 12 day of APRIL , 2018.
'4.11 -Fakietlit-210":
(Signatur- if Re..rding Officer)
j o TgAT°rt..
(Title of Recording Officer)

North Carolina Department of Environmental Quality
Division of Water Infrastructure
Water & Sewer Financial Information and Fund Transfer
Certification Water Infrastructure
ENVIRONMENTAL QUALITY
(revised February 2017)
Complete the following information related to your system's enterprise fund. If your enterprise funds are
separate for water and sewer,please supply sheets for both.
1. Supply the required information below.
® Combined System ❑ Water System ❑ Sewer System
Unit Name: Town of Norwood
Fund Name: Water and Sewer Fund
2. Provide the following information for the past three fiscal years for which an audit has been completed and
submitted to the Local Government Commission.
Fiscal Years
2013 2014 2015
Operating Revenues
Customer Charges $1,035,419 $967,233 $1,050,791
Impact Fees
Other Revenue $197,066 $124,014 $168,437
Total Operating Revenues $1,232,485 $1,091,247 $1,219,228
Expenditures
Administration
Salaries
Other $179,069 $116,555 $147,093
Operations
Salaries
Other $841,005 $863,025 $913,082
Total Expenditures $1,020,074 $979,580 $1,060,175
Other (do not include depreciation)
Debt principal
Interest
Capital outlay
Capital reserve
Transfer from (to) other funds
Other(list):
Total Other ($46,841) ($36,799) ($56,865)
Net Income(Loss) $165,570 $74,868 $102,188
(OVER)

3. Certification. Please read and sign below.
I attest that the fiscal information provided in this form,to the best of my knowledge, is accurate,complete
and consistent with audits for the past three years. I further attest that,to the best of my knowledge, if The
Town of Norwood has made any transfers within the past three years,these transfers are shown
in Item#2 of this form.
OCLUrtei-- t4 —calD—
SIGNATURE OF DATE
FINANCE OFFICER
Kelly Caudle Finance Director
TYPED NAME TYPED TITLE
Fund Transfer Certification
(Required for all funding applications except for projects solely funded by CDBG-l)
§ 159G-37.(b) requires that all local governments applying for funding from the Clean Water State Revolving
Fund, the Wastewater Reserve,the DrinkingWater State RevolvingFund,or the DrinkingWater Reserve for
water or wastewater projects certify that no funds received from water or wastewater utility operations have
been transferred to the local government's general fund for the purpose of supplementing the resources of the
general fund since July 1,2014. The prohibition contained in § 159G-37.(b) shall not be interpreted to include
payments made to the local government to reimburse the general fund for expenses paid from that fund that are
reasonably allocable to the regular and ongoing operations of the utility, including,but not limited to,rent and
shared facility costs, engineering and design work,plan review, and shared personnel costs.
Applicant's Certification:
I certify that no funds received from water or wastewater utility operations have been transferred since
July 1, 2014 from the water and/or sewer enterprise fund to the
The Town of Norwood general fund for the purpose of supplementing the
resources of the general fund in accordance with§ 159G-37.(b).
fit vitt,
X2.4-18
SIGNATURE OF DATE
THORIZED REPRESENTATIVE
John Franklin Mullis Town Administrator
TYPED NAME TYPED TITLE

i
PRIORITY RATING SYSTEM for Wastewater Projects
Instructions:For each line item,mark"X"to claim the points for that line item.Be sure that your narrative
includes justification for every line item claimed. At the end of each Category,provide the total points claimed for
each program in the subtotal row for that category.Then add the subtotals from each category and enter the
Project Total in the last line. Note that some categories have a maximum allowed points that may be less than the
total of individual line items.
Line Claimed SWWR CWSRF
Item# Category 1—Project Purpose
Yes/No Pts Pts
1.A Reserved for Other Programs , ......
1.B Project will resolve failed infrastructure issues 15 15
1.0 Project will rehabilitate or replace infrastructure x 15 15
Treatment units, pumps and/or pump stations to
be rehabilitated or replaced are greater than 20
1.C.1 years old,OR water/sewer lines,storage tanks, x 10 10
drinking water wells or intake structures to be
rehabilitated or replaced are greater than 40 years
old
1.D Project will expand infrastructure 2 2
Treatment units, pumps and/or pump stations to
be rehabilitated or replaced are greater than 20
1.D.1 years old, OR lines,storage tanks, drinking water 10 10
wells or intake structures to be rehabilitated or
replaced are greater than 40 years old
1.E 2
1.E.2 Reserved for Other Programs
1.F Project will provide stream/wetland/buffer restoration 20
Restoration project that includes restoration of a
1.F.1 first order stream and includes stormwater I 5
infiltration BMPs
Restoration project that includes restoration and/or .
1.F.2 protection of riparian buffers to at least 30 feet on I 5
both sides of the stream
Line
Item# Category 1—Project Purpose (Continued) Claimed I SWWR CWSRF
Priority Rating System Guidance and Form(March 2018) Page 1 of 5

Yes/No Pts 1 Pts
1.G Project will provide stormwater BMPs to treat existing 1 20
sources of pollution
Project that includes BMPs or BMPs in series that
1.G.1 achieve at least 35% nutrient reduction (both TN and 10
TP)and 85%TSS reduction
1.H Project will provide reclaimed water/usage or rainwater 15
harvesting/usage
Maximum Points for Category 1—Project Purpose 30 30
Subtotal claimed for Category 1—Project Purpose 25 25
Line Claimed SWWR CWSRF
Category 2—Project Benefits
Item# Yes/No Pts1 Pts
i
.B Reserved for Other Programs
Project provides a specific environmental benefit by
2.0 replacement, repair, or merger; includes replacing failing 15 15
septic tanks
2 U Project addresses promulgated but not yet effective 10 10
regulations
2.E Project directly addresses enforcement documents
Project directly addresses an EPA Administrative
Order for a local government Applicant located in a
2.E.1 x 5 5
Tier 1 county, or addresses an existing or pending
SOC, or a DEQ Administrative Order, OR
2 E 2 Project directly resolves a Notice of Violation or 3 3
Notice of Deficiency
2.F Project includes system merger 10 10
2.G—
Reserved for Other Programs
2.1
Line Claimed SWWR CWSRF
Category 2—Project Benefits(Continued)
Item# Yes/No 1 Pts 1 Pts
Priority Rating System Guidance and Form(March 2018) Page 2 of 5

2 Project improves treated water quality by adding or x 3 3
upgrading a unit process
2.K Reserved for Other Programs
2.0
Project directly benefits subwatersheds that are
2.P impaired as noted on the most recent version of the 20 20
Integrated Report
Project directly benefits waters classified as HOW, ORW,
2 Q Tr, SA, WS-I,WS-II,WS-III* or WS-IV* (*these 10 10
classifications must be covered by an approved Source
Water Protection Plan to qualify)
2.R Project will result in elimination of an NPDES discharge 3 3
2 S Primary purpose of the project is to achieve at least 20% 5
reduction in energy use
Maximum Points for Category 2—Project Benefits 35 35
Subtotal claimed for Category 2—Project Benefits 8 8
Line Claimed SWWR CWSRFI
Category 3—System Management
Item# � Yes/No Pts Pts
Applicant has a current Capital Improvement Plan (CIP)
3.A that spans at least 10-years and proposed project is 2 2
included in the plan OR
3.B Applicant has implemented an Asset Management Plan 10 10
as of the date of application
System Operating Ratio is greater than or equal to 1.00
3.0 based on a current audit, or is less than 1.00 and unit 5 5
cost is greater than 2.5%
Priority Rating System Guidance and Form(March 2018) Page 3 of 5

Line Claimed SWWR CWSRF
Item# Category 3—System Management (Continued)
Yes/No Pts Pts
3.D— Reserved for Other Programs
3.F
Maximum Points for Category 3—System Management 15 15
Subtotal claimed for Category 3—System Management 0 0
Line Claimed SWWR ! CWSRF
Item# Category 4—Affordability
Yes/No Pts Pts
4.A Residential Connections il
4.A.1 Less than 20,000 residential connections OR 2
4.A.2 Less than 10,000 residential connections OR 4 ;
4.A.3 Less than 5,000 residential connections OR x 6
4.A.4 Less than 1,000 residential connections 10
4.B Current Monthly Utility Rates at 5,000 Usage
4.B.1 Greater than $26 OR 2 2
4.B.2 Greater than $33 OR 4 4
4.8.3 Greater than $40 OR 6 6
4.B.4 Greater than $47 8 8
4.B.5 Greater than $58 12 12
4.0 Local Government Unit (LGU) Indicators
4.C.1 2 out of S LGU indicators worse than state 2 2
benchmark OR
4.C.2 3 out of 5 LGU indicators worse than state x 4 4
benchmark OR
Priority Rating System Guidance and Form(March 2018) Page 4 of 5

r
Line i Claimed SWWR 1 CWSRF
Item# Category 4—Affordability(Continued)
� Yes/No Pts Pts
4.C.3 4 out of 5 LGU indicators worse than state 6 6
benchmark OR
4.C.4 5 out of 5 LGU indicators worse than state I
8 8
benchmark
j 4.D—
4.E
Reserved for Other Programs
Maximum Points for Category 4—Affordability 30 20
Subtotal claimed for Category 4—Affordability 10 4
Total of Points for All Categories 43 37
Priority Rating System Guidance and Form(March 2018) Page 5 of 5

SWWR Priority Rating System Narrative
Town of Norwood
Norwood WWTP Renovation
Prepared By: Charles A. Willis,Jr., P.E., BCEE
Steven E. Gerlach, E.l.
Willis Engineers (F-0114)
10700 Sikes Place, Suite 115
Charlotte, North Carolina 28277
Date: April27, 2018 .o`�NG�P'`P°''
��•`N,-, • • !/:
Categories •
17710
1. Project Purpose c?•••„
2. Project Benefits '��•":vGtt� .: �
.1.0,
3. System Management
4. Financial Situation tu,l°�
Attachments
Overview of Deficiencies& Recommendations
Site Plans
Select Original Construction Drawings
Photographs
SOC Correspondence
SOC Application
Notice of Violation
Clarifier Deficiencies
Rate Sheet
1. Project Purpose
1.0 The proposed renovations will enable the Town of Norwood to comply with their
existing National Pollutant Discharge Elimination System (NPDES) permit in a safe working
environment. The purpose of this project is to replace damaged and/or undersized equipment
that has resulted in numerous NPDES permit violations or created safety hazards.
The limiting factor of renovation is the cost. Ideally, the WWTP would be renovated in its
entirety to bring the facilities up to industry standards. Due to the massive scale of repairs
needed for these facilities, the project will likely need to be broken up into different phases
with design provisions for future additions as funding becomes available.
WiIIiSENGINEERS

The renovation will include a new headworks facility with screening, grit removal, and flow
monitoring; aeration basin improvements; two new clarifiers sized for peak flows as well as a
sludge pumping system; a UV disinfection system; various site/safety improvements; and
electrical improvements &SCADA additions.
This project will concentrate on the essential repairs and upgrades to ensure the WWTP will
achieve Permit limits and meet safety requirements. An in-depth discussion of each of the
WWTP deficiencies and the recommended repairs and upgrades are presented in the Overview
of Deficiencies & Recommendations Attachment. None of these proposed renovations of this
project will influence the volume of the aeration basins of the Norwood WWTP, therefore the
Permitted treatment capacity of the plant will not be impacted by this project. The general
location and layout of the existing and proposed facilities is shown in the Site Plan Attachments.
1.C.1. Essentially all costs of this project will be allocated to replace items greater than 20
years old. The headworks structure, grit classifier, secondary clarifiers, generator and diversion
boxes to be replaced for this renovation are all from the original construction in 1971. Plans
from the 1971 construction showing these elements can be found in the Select Original
Construction Drawings Attachment for reference. The Photographs Attachment provides a
walkthrough of the WWTP that illustrates the condition of the old equipment at the WWTP.
2. Project Benefits
2.E.1 The Town of Norwood currently has a pending Special Order of Consent (SOC). The
Town has been working with the Mooresville Regional Office of the North Carolina Department
of Environmental Quality (NCDEQ)to complete this application process. Correspondence
between the Town of Norwood and the Regional Office can be found in the SOC
Correspondence Attachment. The full pending application submittal can be found in the SOC
Application Attachment.
The cause of the failures and violations at the Norwood WWTP can be attributed to damaged
and undersized equipment throughout the WWTP process. The headworks basin containing the
screening, grit removal, and flow monitoring for the WWTP is too small for the WWTP design
flow. This has resulted in numerous overflows of the headworks during periods of high flow.
Additionally,there is a hole in the screening equipment, which has allowed solids to bypass the
headworks and enter the treatment process, causing issues for the mechanical equipment and
increasing solids concentrations. The grit classifier does not work whatsoever, and the flow
monitoring is inaccurate due the geometry of the basin. By replacing the headworks, the basin
will be subjected to less overflows, and have properly functioning screens and grit removal that
will lower the solids in the downstream treatment processes. Copies of the violations received
can be found in the Notice of Violation Attachment.
Norwood WWTP 2
Renovation of Existing Facilities

The WWTP currently is operating with only one 33-foot clarifier in service. This single clarifier
is not adequately sized to management the solids or flows expected at the WWTP. As a result,
high flow events have resulted in violations due to a high amount of solids carryover. This
project proposes to replace the clarifiers with larger units to ensure the facilities will be able to
be in compliance with their Permit, even during peak flow events. Calculations illustrating the
clarifier deficiencies are shown in the Clarifier Deficiencies Attachment.
A draft schedule including funding, compliance, and construction milestones has been included
below. There does not appear to be any conflicts in the schedule.
Below is a summary discussing the anticipated timeline for the project.
April 30, 2018 —CWSRF Funding Submission
July 2018 —Funding Approval
December 2018 —Engineering Report (and possibly EID)
June 2019 —Submit Design for Regulatory Approval
December 2019 —Regulatory Approval
March 2020 —Bidding and Awards
April 2020 —Construction Start
April 2021 —Construction Completion
April 2021 Onward —Norwood WWTP in Compliance
2.J The Norwood WWTP Renovation will upgrade the Plant's unit processes in order to be
in compliance with its NPDES Permit. As stated in the previous sections, the influent screening
and grit classifier do not function properly. As a result, the WWTP has a significant amount of
solids in its downstream treatment processes which have resulted in various mechanical issues
in the pumps and aerators, as well as Permit Violations. A new headworks facility will provide
sufficient screening and grit removal, which will result in a significant decrease in the solids
loading on the downstream treatment processes.This will result in better performing aerators
for the activated sludge process, lessen the load placed on the clarifier, and reduce the BOD
and TSS in the WWTP effluent.
As shown by the clarifier calculations page in the Calculations attachment, the single 33-foot
clarifier does not provide sufficient treatment capacity for the loading expected at the WWTP.
Adding larger secondary clarifiers will lower the TSS effluent and should eliminate the recurring
TSS violations.
Norwood WWTP 3
Renovation of Existing Facilities

3. Affordability
4.A.3 The Town of Norwood has less than 5,000 residential connections
4.C.2 Three (3) of the five (5) LGU indicators are worse than the State benchmark. These
indicators include the Poverty Rate, and the Median Household Income, and the Calculated
Property Value per Capita.
Norwood WWTP 4
Renovation of Existing Facilities

Town of Norwood Overview of Deficiencies and Recommendations
Norwood WWTP Renovation
Item Deficiency Recommendation
The headworks of the Norwood WWTP frequency overflows due A new all in one Headworks structure,containing screening,grit
to its narrow geometry and low freeboard.Aside from the removal,and flow monitoring.The structure will be sized for
structure,the mechanical components of the headworks are also peak flows expected at the WWTP,and would eliminate the
!problematic.The screen within the headworks is easily bypassed frequent overflows see at the WWTP.
due to a hole in the screen and an improperly sized channel/
screen combination.Solids have become a significant issue within
the aeration basins to the point that the recycled sludge needs to
Headworks be screening before reentering the aeration basin.The Grit
Classifier is extremely old and although in operation,does not
appear to be removing any grit whatsoever,suggesting the auger
is broken or highly corroded below the water level.The geometry
of the headworks creates turbulent water conditions which are
unsuitable for Parshall Flume flow monitoring.
From a structural standpoint,wastewater is conveyed out of the A dissolved oxygen and pH probe with SCADA integration.This
aeration basins through two pipes.This particular configuration, will allow the operator to make better process decisions to treat
along with the high amount of debris within the aeration basins, the wastewater efficiently and effectively.
creates conditions that result in a significant flow imbalance
within the WWTP unit processes.
From an operational standpoint,there are no dissolved oxygen
probes within the aeration basins.Without any knowledge of the
Aeration
dissolved oxygen concentration within a basin,the time intervals
Basins
for the mechanical aerator system are being selected at the
operator's discretion.It is possible that the basins are being over
or under supplied with air which could result in excess BOD in the
effluent or high power consumption.Additionally,no pH
monitoring is present at the WWTP,meaning operators must add
chemical at their own discretion
Willis Engineers
April 2018

Town of Norwood Overview of Deficiencies and Recommendations
Norwood WWTP Renovation
Item Deficiency Recommendation
One of the two 33 foot secondary clarifiers at the Norwood Two new 50 foot secondary clarifier will be added.The existing
WWTP has completely failed and as a result has been out of clarifiers are extremely small for the flows tributary to the
service for over a year. This clarifier's mechanical equipment is WWTP,so the larger clarifiers should help resolve solids
Secondary
beyond repair.The other clarifier is functioning,but showing overloading.The new clarifiers will require a new RAS/WAS
Clarifier
significant signs of wear from its age. pumping station,which will utilize the existing distribution piping
of the activated sludge process.
Most of the diversion boxes at the WWTP intended to serve as Replace the concrete damage around the diversion boxes so they
process isolation are significantly damaged to the point where are able to hold water without leaking. Replace all valving within
Diversion
they do not work.As a result,the only way to take the damaged these boxes.
Box
clarifier out of service was to remove the upstream aeration
basin from service.
The chlorine contact basins are connected to the plant drainage Eliminate the safety hazards associated with the chlorine contact
system so they may be periodically drained and cleaned.The basins by replacing them with UV disinfection.
drainage valve on one of the contact basins is inoperable.Staff
must therefore manually manipulate flows in the basins by
Disinfection installing a stand pipe in the drainage outlet.Access to this outlet
is only available by entering the basin therefore presenting a
safety hazard.
The WWTP generator is nearly 50 years old and problematic and A new generator,ATS,and repair of the RAS/WAS pump VFD's
needs replaced.The automatic transfer switch of the generator
does not work,meaning that in the event of the power outage,
the WWTP staff needs to manually power on the generator.
Electrical Additionally,the WWTP RAS/WAS pumps have a VFD system that
Improvements does not automatically restart after a power outage.This has
caused significant problems because the WWTP has no SCADA,
so if no one is on site then there is no way knowing whether the
WWTP has power or not
Willis Engineers April 2018

Town of Norwood Overview of Deficiencies and Recommendations
Norwood WWTP Renovation
Item Deficiency Recommendation
The WWTP has no SCADA or remote monitoring. The part-time Basic SCADA System providing WWTP Power Status,Generator
contract operation of the facilities,combined with aging Power Status,Dissolved Oxygen Concentration and pH
SCADA equipment and a faulty ATS on the generator,it is possible the
facilities could go days without power and not be noticed.
The WWTP has old chains to act as hand rails around each of the Replace the chain-link fence with an aluminum handrail system,
unit processes.Additionally,the perimeter fence providing repair the perimeter fencing to establish site security,and repair/
Safety security for the WWTP site is significantly damaged.A majority of add lighting to provide adequate site illumination at night time.
the lights on the property are old or non-functioning.
Willis Engineers
April 2018

k •
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t
. Oj
4
11
0 0
6
77517774
. c> G_
0 ..,,,...(N,0
2
(,____
.,
g - o a 0
>,..,,_
0 4
0
LEGEND: PIPING SCHEDULE:
O1 HEADWORKS O7 GENERATOR BUILDINGS FLOW
0 DIVERSION BOX ® SCUM PIT SLUDGE
0 AERATION BASIN 0 CONTROL BUILDING / PUMP STATION DRAIN
04 SECONDARY CLARIFIER @ SLUDGE DRYING BED 0 MANHOLE
0 CHLORINE CONTACT BASIN 0 SLUDGE STORAGE TANK
0 CHEMICAL BUILDINGS
TOWN OF NORWOOD APRIL 2018
MIMS ENGINEERS NORWOOD WWTP
EXISTING SITE DIAGRAM SITE PLAN

k PIPING SCHEDULE:
{> 10
(DRAIN NOT SHOWN FOR CLARITY)
FLOW
SLUDGE
---- DEMO O i Di-
0
0 MANHOLE 0
Lx
4
11 I
0 3 3
---)
r 7 L
\ 13 p
I J I
LEGEND:
C> O 01 HEADWORKS
• 0 DIVERSION BOX
® AERATION BASIN
O ® SECONDARY CLARIFIER
® UV DISINFECTION 1
I _ _. 0 CHEMICAL BUILDINGS
0 GENERATOR BUILDINGS
Oj ® SCUM PIT
O9 CONTROL BUILDING / PUMP STATION
10 SLUDGE DRYING BED
11 SLUDGE STORAGE TANK
-----'))
@ RAS/WAS/SCUM
(i)----- D
-1------------ O
13 SPLITTER BOX
• ---._. ----/
® c>
TOWN OF NORWOOD APRIL 2018
INNIS ENGINEERS NORWOOD WWTP
PROPOSED RENOVATIONS SITE PLAN

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WPC-NC-286
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TOWN OF NORWOOD, N. G. J2 a INDEX TO PLANS
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J. C. GUFFY MAYOR \° Xt
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COUNCILMEN 7111, 176 t
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� COVER SHEET & LOCATION MAP
R. B. WINCHESTER =\g335 .lik� LOCATION PLAN .
RAYMOND SKIDMOFE, JR. 9'< i
FLOATING AERATOR LAYOUT (ALTERNATE)
C. J. CLAYTON oGio k4�'� NEW 6" GRADING PLAN
CLYDE ALMOND `.;\WATER MAIN YARD PIPING PLAN •
JOHN McNEILL N v ACCESS ROAD TO PLANT
ro N -p PLANT HYDRAULIC PROFILE
a SCREEN , FLUME & GRIT REMOVER
(0)1N AERATION BASIN—PLAN, SECTIONS & DETAILS - z}—{
CLARIFIER 8; PUMP ROOM - - - • 13—1, 1
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TRLAQTMrNT PUMP ROOM PIPING PLAN & SECTIONS f
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STANDARD STRUCTURAL & MISC. DETAILS • ti_ .i,1/2
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ELECTRICAL PLANS & DETAILS -
12" SEWER LINE
6" WATER MAIN •
STANDARD STRUCTURES FOR SEWER LINES •
STAI 'ARD STRUCTURES FOR WATER LINES
THE HARWOOD BEEBE CO.
CONSULTING ENGINES :i ,- =QtN R,_ •.
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Town of Norwood
Norwood WWTP Renovation
Project Narrative
Photographs of Plant Deficiencies
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Photo 1-The extremely narrow and shallow headworks basin is highly prone to overflow during high flow events.The
narrow geometry and sharp angles create unsuitable conditions for Parshall Flume flow measurement.
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Photo 2-The influent screen which is easily bypassed due to holes in the screen and improper channel sizing.
WIIIISENGINEERS 1

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Photo 3-The grit classifier is not removing any grit.The grit pile shown on the left of the screen has remained unchanged for
several years,suggested that the auger of the classifier is either broken or has corroded away.
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Photo 4-The high concentrations of solids and rags in the aeration basins frequently result in aerators needing maintenance.
Norwood WWTP 2
Renovation of Existing Facilities

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Photo 5—A damaged clarifier and flow isolation box.
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Photo 6—A close-up of the clarifier damage.The mechanism was destroyed as a result of torque overload.
Norwood WWTP 3
Renovation of Existing Facilities

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Photo 9—This aeration basin had to be taken out of service to take the damaged clarifier out of service.
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Photo 10—The current state of the property fence.
Norwood WWTP 5
Renovation of Existing Facilities

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Photo 11—Most of the unit processes on site are surrounding by a chain link fence.In some areas of the Plant,the chains are
highly corroded or even broken.
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Photo 12—This generator,installed in 1971 has recently failed in 2018 and will need replaced.Before the failure,the ATS did
not function,meaning the WWTP staff would need to manually turn it out in the event of a power outage.
Norwood WWTP 6
Renovation of Existing Facilities

SOC Correspondence
Steve Gerlach
From: John Mullis <[e-mail]>
Sent: Tuesday,April 10, 2018 11:25 AM
To: [e-mail]
Cc: Scheller, Roberto;[e-mail]; [e-mail]
Subject: Town of Norwood -WWTP - Intent to file SOC &request permit modification - NC0021628
Attachments: Norwood WWTP Report - 14 Mar 18 - FINAL(3).pdf
Hello Mr. Hennessy,
Thank you for taking my call and I look forward to meeting you in your office on Tuesday April 17th at 11 am in the
Archdale building.
The purpose of the meeting will be to discuss issues at the Norwood WWTP (Permit NC0021628).
Prior to this request, I reached out to Senior Environmental Specialist Roberto Scheller from the Mooresville, Regional
Office. Mr. Scheller arranged a meeting on Friday March 23 at 9:30 in the Mooresville Regional office with Assistant
Regional Supervisor,Andrew Pitner and Regional Supervisor, Corey Basinger.
During that meeting, I presented the findings from a recently commissioned WWTP condition report conducted by
Willis Engineering.The report has some alarming reality that the Town of Norwood must now face.As Town
Administrator, I am charged with the protection public health for our citizens and the environment as well. I am
prepared to set the necessary course but I will need your help. Mr. Basinger suggested that I reach out to you to discuss
plant modifications and some of the recommendations listed in the report.
I have already reached out to potential funding sources including the State of North Carolina and USDA. It is my intent to
file a Special Order of Consent (SOC)following the adoption of a Resolution of the Norwood Town Council. In my
opinion,this is the right thing to do as the Town of Norwood addresses issues of age and failures with our Waste Water
Plant infrastructure.
Below you will find a copy of the Norwood WWTP condition and assessment report for your perusal and in advance of
our meeting.
Kind Regards,
John Mullis
Town Administrator
Town of Norwood
Cell: 704-690-1074
Email: [e-mail]
1

PAT MCCRORY
�n Gomm,
DONALD R. VAN DER VAART
surto).
Water Resources
ENVIRONMENTAL OVALITY S. JAY ZIMMERMAN
Direct°,
Certified Mail # 7015 1520 0002 6878 2134
Return Receipt Requested
November 1, 2016
John Mullis, Administrator Town
Town of Norwood
PO Box 697
Norwood, NC 28128
SUBJECT: NOTICE OF VIOLATION
Tracking Number: NOV-2016-LV-0596
Permit No. NC0021628
Norwood WWTP
Stanly County
Dear Permittee:
A review of the June 2016 Discharge Monitoring Report (DMR) for the subject facility revealed the violation(s)
indicated below:
Limit Exceedance Violation(s):
Sample Limit Reported
Location Parameter Date Value Value Type of Violation
001 Effluent Coliform, Fecal MF, MFC Broth, 6/25/2016 400 496.51 Weekly Geometric Mean Exceeded
44.5 C(31616)
Remedial actions, if not already implemented, should be taken to correct any noted problems. The Division of
Water Resources may pursue enforcement actions for this and any additional violations. If the violations are of a
continuing nature, not related to operation and/or maintenance problems, and you anticipate remedial
construction activities, then you may wish to consider applying for a Special Order by Consent (SOC).
State of North Carolina I Environmental Quality I Water Resources
610 East Center Avenue,Suite 301,Mooresville,NC 28115
704-663-1699

If you have any questions concerning this matter or to apply for an SOC, please contact Roberto Scheller of
the Mooresville Regional Office at 704-663-1699.
Sincerely,
W. Corey Basinger, Regional Supervisor
Water Quality Regional Operations Section
Mooresville Regional Office
Division of Water Resources, NCDEQ
Cc: WQS Mooresville Regional Office - Enforcement File
NPDES Compliance/Enforcement Unit- Enforcement File
State of North Carolina I Environmental Quality I Water Resources
610 East Center Avenue,Suite 301,Mooresville,NC 28115
704-661-1699

PAT MCCRORY
!N
!• Governor
1„p
DONALD R. VAN DER VAART
Secretary
Water Resources
ENVIRONMENTAL QUALITY S. JAY ZIMMERMAN
Director
October 28, 2016
Mr. John Mullis
Town Administrator
Post Office Box 679
Norwood, North Carolina 28128
SUBJECT: Compliance Evaluation Inspection
Norwood WWTP
NPDES Permit NC0021628
Stanly County, NC
Dear Mr. Mullis:
On September 13 and 15, 2016, Roberto Scheller of this Office collected samples for effluent
toxicity test at the subject facility. The laboratory results for the subject toxicity testing are
enclosed with this cover. We wish to thank you and the operating staff for assistance regarding
this collection of these samples.
The enclosed report should be self-explanatory; however, should you have any questions,
please do not hesitate to contact myself of Roberto Scheller at [phone] or
[e-mail].
Sincerely,
4co%eto/u.e.y64.4.t..4,:r__,
W. Corey Basinger, Regional Supervisor
Water Quality Regional Operations Section
Division of Water Resources, NCDEQ
Enclosed
cc: Charles Donnell, Capital Project Manager, email: [e-mail]
Wastewater Branch
MSC 1617—Central files basement
File
State of North Carolina I Environmental Quality I Water Resources I Water Quality Regional Operations
Mooresville Regional Officel 610 East Center Avenue,Suite 3011 Mooresville,North Carolina 28115
704 663 1699

Division of Water Resources
October 28,2016
MEMO) ND_UM
To: Corey Basinger
Water Quality Regional Operations,MRO
Through: Cindy A.Moore Q,N.1\
Supervisor,Aquatic Toxicology Branch(ATB)
From: Carol Hollenkamp
Quality Assurance f Icer,Aquatic Toxicology Branch(ATB)
Subject: Whole effluent toxicity test results
Norwood WWTP
NPDES Permit#NC0021628/001
Stanly County
The aquatic toxicity test using composite samples of effluent discharged from the Norwood WWTP has
been completed. Norwood WWTP has a permitted effluent discharge of 0.75 million gallons per day
(MGD)entering the Rocky River(7Q10 of 42 CFS). Whole effluent samples were collected on
September 13 and September 15 by Roberto Scheller and facility representative Tom Johnson for use in a
chronic Ceriodaphnia dubia pass-fail toxicity test. This test passed. Toxicity test information follows.
Test Type 3-Brood Ceriodaphnia dubia chronic pass fail
Test Concentrations 2.7%
Test Result Pass
Control Survival 83%
Control Mean Reproduction 24.4 neonates
Test Treatment Survival 100%
Treatment Mean Reproduction 31.8 neonates
First Sample pH 6.17 SU
First Sample Conductivity 436 micromhos/cm
First Sample Total Residual Chlorine <0.10 mg/L
Second Sample pH 8.01 SU
Second Sample Conductivity 446 micromhos/cm
Second Sample Total Residual Chlorine <0.10 mg/L
Test results for the above samples indicate e t hat the effluent would not be predicted to have waterualit
q Y
impacts. Please contact us if you have any questions or if further effluent toxicity monitoring is desired.
We may be reached at(919)743-8401.
Basin: YAD14
cc: Central Files
Wes Bell(MRO)
Roberto Scheller
Aquatic Toxicology Branch Water Sciences Section

ROY COOPER
Coveinor
•
MICHAEL S. REGAN
secretary
w
Water Resources
S.JAY ZIMMERMAN
UHYIkoNMlN?AI.QUALM Dbtector
Certified Mail # 7015 1520 0002 6878 2257
Return Receipt Requested
January 31, 2017
John Mullis, Administrator Town
Town of Norwood
Post Office Box 697
Norwood, NC 28128
SUBJECT: NOTICE OF VIOLATION
Tracking Number: NOV-2017-LV-0079
Permit No. NC0021628
Norwood WWTP
Stanly County
Dear Mr. Mullis:
A review of the September 2016 Discharge Monitoring Report (DMR) for the subject facility revealed the
violation(s) indicated below:
Limit Exceedance Violation(s):
Sample Limit Reported
Location Parameter Date Value Value Type of Violation
001 Effluent Solids,Total Suspended - 9/30/2016 30 40.17 Monthly Average Exceeded
Concentration (C0530)
Remedial actions, if not already implemented, should be taken to correct any noted problems. The Division of
Water Resources may pursue enforcement actions for this and any additional violations. If the violations are of a
continuing nature, not related to operation and/or maintenance problems, and you anticipate remedial
construction activities, then you may wish to consider applying for a Special Order by Consent (SOC).
Please note that in accordance with the Town of Norwood current NPDES Permit#NC0021628, Part II, Section E,
Item 6. "Twenty-four Hour Reporting", (a.) The Permittee shall report to the Director or the appropriate Regional
Office any noncompliance that potentially threatens public health or the environment. Any information shall be
provided orally within 24 hours from the time the Permittee became aware of the circumstances. A written
submission shall also be provided within 5-days from the time the Permittee becomes aware of the circumstances.
The written submission shall contain a description of the noncompliance, and its cause; the period of
noncompliance, including exact dates and times, and if the noncompliance has not been corrected, the anticipated
time it is expected to continue; and steps taken or planned to reduce, eliminate, and prevent reoccurrence of
noncompliance [40 CFR 122.41(1)(6)].
State of North Carolina I Environmental Quality l Water Resources
610 East Center Avenue,Suite 301,Mooresville,NC 28115
704-663-1699

If you have any questions concerning this matter or to apply for an SOC, please contact Roberto Scheller of
the Mooresville Regional Office at 704-663-1699.
Sincerely,
W. Corey Basinger, Regional Supervisor
Water Quality Regional Operations Section
Mooresville Regional Office
Division of Water Resources, NCDEQ
•
•
Cc: WQS Mooresville Regional Office - Enforcement File
NPDES Compliance/Enforcement Unit - Enforcement File
State of North Carolina I Environmental Quality I Water Resources
610 East Center Avenue,Suite 301,Mooresville,NC 28115
704-663-1699

ROY,GOOPER,
caar4or
MICHAEL S. REGANsantmy.
l 1esows
S.JAY ZIMMERMAN
umodliowtrAtdatourf Diriaor
Certified Mail # 7015 1520 0002 6984 9485
Return Receipt Requested
September 8, 2017
John Mullis, Town Administrator
Town of Norwood
PO Box 697
Norwood, NC 28128
SUBJECT: NOTICE OF VIOLATION
Tracking Number: NOV-2017-LV-0601
Permit No. NC0021628
Norwood WWTP
Stanly County
Dear Mr. Mullis:
•
A review of the May 2017 Discharge Monitoring Report(DMR) for the subject facility revealed the violation(s)
indicated below:
Limit Exceedance Violationfs):
Sample Limit Reported
Location Parameter Date Value Value Type of Violation
001 Effluent Coliform, Fecal MF, MFC Broth, 5/27/2017 400 755.95 Weekly Geometric Mean Exceeded
44.5 C (31616)
Remedial actions, if not already implemented, should be taken to correct any noted problems. The Division of
Water Resources may pursue enforcement actions for this and any additional violations. If the violations are of
a continuing nature, not related to operation and/or maintenance problems, and you anticipate remedial
construction activities, then you may wish to consider applying for a Special Order by Consent (SOC).
•
State of North Carolina Environmental Quality I Water Resources
610 East Center Avenue,Suite 301,Mooresville,NC 28115
704-663-1699

If you have any questions concerning this matter or to apply for an SOC, please contact Roberto Scheller of
the Mooresville Regional Office at 704-663-1699.
Sincerely,
',/161440*44.
W. Corey Basinger, Regional Supervisor
Water Quality Regional Operations Section
Mooresville Regional Office
Division of Water Resources, NCDEQ
Cc: WQS Mooresville Regional Office - Enforcement File
NPDES Compliance/Enforcement Unit - Enforcement File
•
State of North Carolina I Environmental Quality I Water Resources
610 East Center Avenue,Suite 301,Mooresville,NC 28115
704-663-1699

Town of Norwood Clarifier Deficiencies
Norwood WWTP Renovation
Assumptions
Q Design Flow 0.75 MGD
PF Peaking Factor 3.5
MLSSMAx Max Solids (By Extended Aeration Design Criteria) 5000 mg/I
Loads,Peak Peak Solids Loading 35 lbs/day/ft^2
Loadgpeak Peak Hydraulic Loading 1000 gal/day/ft^2
Load Peak Peak Weir Loading 20000 gal/day/LF
r Recycle Ratio of Design Flow 1
Formulas
Solids Loading Rate (r x Q+PF x Q)x MLSSMAx x 8.34
Solids Loading Area Solids Loading Rate/(Loads,peak x Number of Clarifiers in Service)
Hydraulic Loading Q x PF/(Loada,Peak x Number of Clarifiers in service)
Weir Loading Q x PF/(LoadW,Peak x Number of Clarifiers in Service)
New Clarifier Diameter ((Total Solids Loading Area-Existing Clarifier Area)*4/n)^0.5
Required Diameter at Peak Flow,Two Clarifiers in Service, Max Recycle
Solids Loading Rate 141453 lbs/day
Solids Loading Area 2021 ftA2
Diameter 51 ft
Hydraulic Loading Area 1321 ftA2
Diameter 41 ft
Weir Loading Area 66 ft
Diameter 10 ft
**The WWTP is currently operating with a single 33 foot clarifier in service.The Ten State Standards
calculations indicate that WWTP should have two 50 foot clarifiers in order to adequately treat
the flows expected at the WWTP.
Calculation of Single Clarifier Size to Treat Projected Solids Loading Rate
Diameter 65 ft
**The existing 33 foot clarifier alongside a new 65 foot clarifier would be sufficient to treat the WWTP's
peak solids loading conditions. However,this would result in a flow imbalance in the WWTP.Therefore,
the addition of two 50 foot clarifier has been selected
Willis Engineers April 2018

Water and Sewer Rates History
Water/Sewer
FY 2013- Inside Second Fourth
2014 Minimum First Break Break Third Break Break
$ 14.91 $0.003846 $0.003582 $0.003405 $0.003274
Water/Sewer
FY 2013- Outside Second Fourth
2014 Minimum First Break Break _Third Break Break
$ 29.80 $0.007692 $0.007163 $0.006810 $0.006547
Water/Sewer
FY 2014- Inside Second Fourth
2015 Minimum First Break Break Third Break Break
$ 15.66 $0.004038 $0.003761 $0.003575 $0.003438
Water/Sewer
FY 2014- Outside Second Fourth
2015 Minimum First Break Break Third Break Break
$ 31.29 $0.008077 $0.007521 $0.007151 $0.006874
Water/Sewer
FY 2015- Inside Second Fourth
2016 Minimum First Break Break Third Break ,Break
$ 16.44 $0.004240 $0.003949 $0.003754 $0.003610
Water/Sewer
FY 2015- Outside Second Fourth
2016 Minimum First Break Break Third Break Break
$ 32.85 $0.008481 $0.007897 $0.007509 $0.007218
Water/Sewer
FY 2016- Inside Second Fourth
2017 Minimum First Break Break Third Break Break
$ 16.44 $0.004240 $0.003949 $0.003754 $0.003610
Water/Sewer
FY 2016- Outside Second Fourth
2017 Minimum First Break Break Third Break Break
$ 32.85 $0.008481 $0.007897 $0.007509 $0.007218
Water/Sewer
Inside 1000
FY 2017- gallon Second Fourth
2018 Minimum First Break Break Third Break Break
$ 16.44 $0.004240 $0.003949 $0.003754 $0.003610
Water/Sewer
Inside 1000
FY 2017- gallon Second Fourth
2018 Minimum First Break Break Third Break Break
$ 32.85 $0.008481 $0.007897 $0.007509 $0.007218
Notes: The town charges the same rate for all customers and the same
tier structure as follows:
First Break<5000 gallons
Second Break 5001-10,000 gallons
Third Break 10,001-20,000 gallons
Fourth Break>20,001 gallons
Note: The town adjusts water rates during the budget adoption process
therefore no formal resolutions exists for previous years.
Summary 5 Year rate history
1-Jul-13$14.91/1000 gallons
1-Jul-14 15.66/1000 gallons 0.75 increase-5.03%
1-Jul-15 16.44/1000 gallons 0.78 increase-4.98%
1-Jul-16 16.44/1000 gallons
1-Jul-17 16.44/1000 gallons

Affordability CriteriaA14111*
Information Form
Water Infrastructure (Last updated:March 2018)
WIre
ENVIRONMENTAL QUALITY
Complete the information in the appropriate spaces below and provide any supporting documentation related to
this information. Please use the guidance for information as to what is needed and for information related to
special situations that may arise.Note:Failure to complete this form may impact grant percentages and priority
points.
1. Connection Information
Complete this table with the information appropriate for your system type. For example,if you are applying for a
wastewater project, complete the table for wastewater only.
Number of Residential Sewer Number of Non-Residential Sewer
Connections: 1658 Connections: 142
Number of Residential Water Number of Non-Residential Water
Connections: Connections:
2. Local Government Unit Economic Indicators
Complete this information using the information provided in the affordability calculator or
http://portal.ncdenr.orq/web/wi/application-forms.
Percent Population Change: 13.32% Poverty Rate: 20.7%
Median Household Income: $36,136 Percent Unemployment: 4.6%
Property Valuation per Capita(non-CDBG-I programs only): $91,536
3. Existing Revenues
In the space below,provide the ORFuture as calculated based upon the information from the most recent audit on
the financial information form.
ORFuture: $1,273,871
4a. Annual Debt Service(non-CDBG-I programs only)
Complete the information appropriate for your system type. For example,if you are applying for a wastewater
project, complete the table for wastewater only. Use the worksheet found on the Debt Service tab of the
affordability calculator found at http://portal.ncdenr.orq/web/wi/application-forms.Include the worksheet as
part of supporting information for this form.
Total Water Annual Debt Service: Total Sewer Annual Debt Service: $271,037.10
❑ The Applicant does not have any existing debt service.Therefore, no LGC 129 and debt service
worksheet is included in the application.
4b. Water and Sewer Bills
Complete the information below for both system types(if combined system).
Water Bill for 5,000 gallons: Sewer Bill for 5,000 gallons: $21.20
4c. Estimated Grant Percentage Calculated
List the estimated grant percentage calculated and the method used.
Grant Percentage Calculated: 25% Method Used: ® Calculator
❑ By Hand

Form LGC its STATE OF NORTH CAROLLNA Run Date: 9/6/2017
Revised 7-2003 LOCAL GOVERNMENT COMMISSION
ANNUAL PRLNCIPAL AND INTEREST REQUIREMENTS
TOWN OF NORWOOD NON GENERAL OBLIGATION 2017-18
UNIT Fiscal Year
DATE
OF DESCRIPTION Outstanding DUE PRINCIPAL INTEREST
ISSUE at July 1
09/13/1999 WATER&SEWER LLNES $ 214,181.08 09/13/17 $ 81.536.85 $ 4,178.47
- 03/13/18 83,169.75 2,545.57
08/03/2009 SEWER 133,333.31 08/01/17 16,666.67 5.434.44
10/19/2014 E-SRL-C-05-0067.SEWER 1.978.395.92 11/01/17 - 19,783.96
- 05/01/18 123,649.75 19,783.96
Totals 2.325.910.31 305.023.02 51,726.40
Total Bond Principal and Interest Requirements: 356,749.42

Debt Service Calculation
Enter information from the LGC 129 form. For other annual debt service not listed on LGC 129,please provide a description in the lines below.
System Name: Norwood WWTP System Type: Wastewater
E- I acknowledge that my system currently has no debt related to my water or sewer system and check this box in lieu of submitting a LGC 129 form.
Signature Needed if above box if Checked -->
Check if not Percentage for Calculated Calculated
Date of Issue Description on LGC 129 Due Principal Interest System Type Principal Interested Calculated Total
9/13/1999 Water&Sewer Lines 9/13/2017 $81,536.85 $4,178.47 50% $40,768.43 $2,089.24 $42,857.66
3/13/2018 $83,169.75 $2,545.57 50% $41,584.88 $1,272.79 $42,857.66
8/3/2009 Sewer 8/1/2017 $16,666.67 $5,434.44 100% $16,666.67 $5,434.44 $22,101.11
10/19/2014 E-SRL-C-05-0067,SEWER 11/1/2017 $19,786.96 100% $0.00 $19,786.96 $19,786.96
5/1/2018 $123,649.75 $19,783.96 100% $123,649.75 $19,783.96 $143,433.71
Total Annual Debt Service: $271,037.10

Steve Gerlach
From: John Mullis <[e-mail]>
Sent: Wednesday, April 11, 2018 12:57 PM
To: Steve Gerlach
Subject: Fwd: Town of Norwood
Attachments: IMG_6450.JPG; IMG_6432.JPG; IMG_6409.JPG; IMG_6408.JPG;Water distribution a pressing problem
for Norwood _ News_thesnaponline.pdf; SSO 012818.pdf; Norwood gets treatment plant
assessment_Gallery_thesnaponline.pdf
To All,
I too want to thank Georgia and Congressman Hudson for actually reaching out and setting up a meeting up with the
USDA on behalf of the Town of Norwood. Our concern is first and foremost the public health and safety of our water
and sewer customers. I recently shared with Mayor Pro-tern Campbell that I never expected to uncover the dire
situation that I found our town to be in Utility wise. It wasn't until I started getting out in the ditches with my workers
during these water and sewer breaks that I learned how severe a crisis that we have in our little town of 2400 residents.
The point in time will come when we have catastrophic failures in our systems.
On the water distribution side, lead and galvanized pipes still exists as well as other materials scattered throughout the
system. I have included two pictures of a small 1- 3/4 water main(minimum is 2") on Anwit Street that we replaced a few
months ago.The scale build up on the inside is representative of what we typically find.
On the Collections side, you will see a section of 4 inch distribution main line (8 inch is minimum code) that we
discovered and replaced that was causing sewer backups in a manhole. While this picture is taken upside down,you can
see that 50%of the line is solid. Gravity sewer pipes are sized to flow at half full and with a scouring velocity of 2ft per
second. In this case, buildup will disturb natural flow, allow greases to congeal more easily and lead to sanitary
overflows.
INI
SSO
SLS Telemetry
Low Pressure agining and poor design infrastructure (Articles)
WWTP
Planning for infrasturcture updates to faciliate industrial expansion in the future/public health
Narrative : What is Norwood Doing ?Telemetry- responding to concerns with savings outside town limits- Fire Hyrants
&testing each hydrant
Kind Regards,
John Mullis
1

Town Administrator
Town of Norwood
Cell: 704-690-1074
Email:john.mullisPnorwoodgov.com
On Fri, Feb 2, 2018 at 11:22 AM, Hart, Allen - RD, Asheboro, NC<[e-mail]>wrote:
Good Morning Georgia:
We did certainly enjoy speaking with you on Tuesday about the needs in your District.
In response to your inquiry, I spoke with John Mullis, Town Administrator of Norwood. It appears that this town has
significant capital needs in their water and sewer systems. Many of these proposed improvements could be addressed
with assistance from USDA Rural Development.
Lynn Whittington and I will be meeting with Mr. Mullis in Norwood on Monday February 5, 2018 at 10:00 am to discuss
their needs in more detail. We will be certain to keep you posted on the outcomes of our discussions with them.
We sincerely appreciate the support and interest that Congressman Hudson and you continue to show for the
communities that we both serve. Do not hesitate to contact me if you have any concerns in the future.
H.Allen Hart
Area Director
Rural Development
United States Department of Agriculture
847 Curry Drive, Suite 104
Asheboro,NC 27205
Phone: [phone] Asheboro
Fax: [phone]
Phone: [phone] ext 3931 Wentworth
Cell: 336-963-6162
2

www.rd.usda.gov I "Committed to the future of rural communities"
Stay Connected with USDA:
USDA is an equal opportunity provider, employer and lender.
This electronic message contains information generated by the USDA solely for the intended recipients. Any unauthorized interception of this message or the use or
disclosure of the information it contains may violate the law and subject the violator to civil or criminal penalties. If you believe you have received this message in
error,please notify the sender and delete the email immediately.
From: Lozier, Georgia [mailto:[e-mail]]
Sent:Thursday, February 1, 2018 4:25 PM
To: Hart, Allen - RD, Asheboro, NC<[e-mail]>
Subject: Inquiry
Allen,
Thanks again for meeting with me on Tuesday.
One of the municipalities that we spoke about was Norwood.John Mullis is the Town Administrator. He has been there
a little over a year and has faced many challenges with an antiquated system and record keeping.
They do own their water and sewer system.John has worked hard to get everything into compliance.They definitely
need a good bit of help. Below is a list of some of the things they are dealing with:
The Waste Water Plant was built in 1973 and has never had an upgrade. They have needed upgrades for over 17 years.
Currently they have a failed clairifier and the repair cost alone is around $250,000. They are running 1/2 the plant and
are able to manage their flows.
The state and their inspectors have been understanding of their predicament thus far.
They have hired an engineering firm to assess the plant to see what the best recovery action should be before spending
money.
3

Their assets in the ground are rotten. They dug up a galvanized water line in town and when they went to band it with a
repair clamp, it disintegrated in their hands.
They have exceeded the expected life of their infrastructure times two.
The public health and safety and importance of providing the delivery of safe and clean drinking water is of vital
importance.
John Mullis can be reached on his cell at 704-690-1074 or email: [e-mail]
Please let me know if our office can assist in any way.
Sincerely,
Georgia
Georgia Lozier
Deputy District Director
Congressman Richard Hudson NCo8
704-786-1612
gi `Yam
Click here to sign-up for Congressman Hudson's e-newsletter.
4

uidflis ENGINEERS
Wastewater Treatment Plant
Condition Assessment
Town of Norwood
North Carolina
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WiII15ENGINEERS
March 14, 2018 1996.001 (1)
Mr. John Mullis
Town Administrator
Town of Norwood
Post Office Box 697
Norwood, North Carolina 28128
Subject: Wastewater Treatment Plant
Condition Assessment Report
Dear Mr. Mullis:
Attached for your use is our Report documenting the condition of the Town's Wastewater
Treatment Plant. This Report includes a detailed evaluation of the individual processes in the
Plant as well as the buildings and grounds. Our efforts also included the development of a
computer simulation model to assess the treatment capabilities of the existing facility.
The Report recommends a series of repairs and improvements intended to restore the facilities
to their proper operating condition so that the Town can continue to provide reliable
wastewater treatment service to its customers. If you have any questions regarding our
assessment or the contents of this Report, please let us know. We appreciate this opportunity
to be of service to the Town of Norwood.
Yours very truly,
WILLIS ENGINEERS
00.0A CARO"
�0•..Vtssio y.2
=n : SEAL
: 17710 • -,_
Charles A. Willis, Jr., P.E., BCEE 9•'•. :'co;:
•
Attachment ",gRTHUR� �`'�``
14 Mar 2018
10700 Sikes Place,Suite 115
Charlotte, North Carolina 28277
704.377.9844/NC License F-0114

Town of Norwood, North Carolina
Wastewater Treatment Plant
Condition Assessment
Table of Contents
1 Executive Summary 1
2 Introduction 2
2.1 Scope of Work 2
2.2 Acknowledgements 3
3 Condition Assessment 4
3.1 WWTP Process 4
3.1.1 Headworks 4
3.1.2 Activated Sludge Process 8
3.1.3 Secondary Clarifiers 12
3.1.4 Disinfection 15
3.1.5 Sludge Management 18
3.2 Electrical System 21
3.3 Controls 21
3.4 Building and Grounds 23
4 Treatment Process Evaluation 26
4.1 Model Development 26
4.2 Results and Discussion 28
4.2.1 Simulation 1—Existing Conditions 28
4.2.2 Simulation 2—80%of Design Flow 29
4.2.3 Simulation 3—Peak Flow Event 30
5 Recommendations 32
5.1 Immediate Repairs 32
5.2 Capital Improvement Plan 33
5.3 Long-Term Planning 35
List of Figures
Figure 1—Site Diagram
Figure 2—Preliminary Replacement Plan—Phase 1
List of Attachments
Attachment 1—Apparent Basis of Design
Attachment 2—Cost Estimate of Immediate Repairs
Attachment 3—Cost Estimate of Capital Improvement Plan
Town of Norwood,NC
March 2018 i WWTP Condition Assessment

Town of Norwood, North Carolina
Wastewater Treatment Plant
Condition Assessment
1 Executive Summary
The Town of Norwood (Town) owns a 0.75 million gallon per day (MGD) Wastewater Treatment
Plant (WWTP) providing wastewater treatment service to its customers. These facilities were
originally constructed in the early 1970's and many of the components are nearing the end of their
useful life. The Town has recently experienced some significant operational difficulties and
therefore sought to undertake a comprehensive assessment of the facilities and develop a plan for
their future improvements.
The efforts undertaken as part of the Condition Assessment included detailed inspection of the
Treatment Plant components as well as a review of the operating data. The result of this
assessment is a series of recommended improvements, to be undertaken over time, intended to
restore the existing facilities to ensure their continued performance. This Report generally
recommends that the Town undertake a series of immediate improvements totaling $550,000.
These improvements are necessary to restore proper operations at the Plant and cannot be delayed.
Following these immediate improvements, the Report recommends undertaking an orderly program
of repairs and upgrades by establishing an ongoing Capital Improvement Program (CIP). These CIP
projects can be undertaken over a number of years allowing the Town adequate time to generate
sufficient revenue for these projects. The CIP would include$2,500,000 of improvements and would
allow for continued long-term operation of the Plant.
Town of Norwood,NC
March 2018 1 WWTP Condition Assessment

2 Introduction
The Town of Norwood (Town) owns a Wastewater Treatment Plant (WWTP) providing wastewater
treatment service to the residential customers in Norwood and surrounding areas. The facilities are
operated under contract by Envirolink, Inc.The WWTP was originally constructed in the early 1970's
and provides service to a population of approximately 2,400. The facility utilizes an extended
aeration activated sludge process to achieve the level of wastewater treatment required by the
State of North Carolina under a National Pollution Discharge and Elimination System (NPDES)
Permit. The WWTP is permitted to discharge 0.75 million gallons per day (MGD) to the Rocky River.
The general arrangement of the Norwood WWTP is further shown on Figure 1.
The WWTP currently operates with an average daily flow of less than half of its design capacity and
under these flow conditions is capable of meeting all of the requirements set forth in its discharge
Permit. In recent years however, there have been a number of operational difficulties encountered
with the aging WWTP infrastructure. The Town and Envirolink staffs have appropriately expressed
concern that the facilities may not be capable of reliably meeting treatment demands. To address
these concerns, the Town retained Willis Engineers to perform a Condition Assessment to evaluate
the WWTP and provide recommendations on the appropriate course of action.
2.1 Scope of Work
The scope of work undertaken as part of the Condition Assessment has included a review of
operating records and apparent design basis for the facilities, sufficient to confirm that Norwood can
continue to operate within its NPDES Permit limits. Although the WWTP can usually meet its Permit
requirements, the facility was found to be facing significant structural, mechanical, and electrical
issues, mostly due to the age of the facilities.
In the absence of any major growth or changes in the Permit requirements, the suitability of the
facilities to meet longer term needs will be largely dependent on the successful continued operation
of the existing facilities. This Condition Assessment is therefore primarily an evaluation of the
equipment and facilities in an effort to determine what improvements would be needed for
continued operation.
The Condition Assessment has included detailed onsite inspection of the major structural,
mechanical and electrical components. Although the Condition Assessment includes some specific
recommendations regarding repair, it is often difficult to predict the failure of individual pieces of
mechanical equipment. The descriptions provided herein are therefore not intended to be an
exhaustive list of repair items, but illustrative of the general condition of the equipment at
Norwood. Where significant deficiencies were discovered or where equipment failures are
considered imminent, they have been noted accordingly. Likewise, several items were noted during
Town of Norwood,NC
March 2018 2 WWTP Condition Assessment

the inspections which are already being addressed by the staff as part of their ongoing maintenance
activities.
The condition of the Plant components is detailed in Section 3, grouped and arranged in accordance
with the treatment unit processes. For each area of the plant, a general condition description is
provided along with illustrative photographs.
In Section 4, a computer simulation model of the WWTP was developed. Simulations were run to
assess how the WWTP would perform under different flow conditions, and the results are included
herein.
Improvement recommendations are provided in Section 5, grouped based on timing and generally
arranged in order of priority.
2.2 Acknowledgements
Willis Engineers would like to acknowledge the extensive assistance provided by the Town of
Norwood and the Envirolink staff. In particular, Tom Johnson of Envirolink provided assistance
throughout the onsite inspections and provided access to operating records and equipment data.
Town of Norwood,NC
March 2018 3 WWTP Condition Assessment

3 Condition Assessment
The following section is intended to describe the condition of the Norwood WWTP. This section is
arranged in order of the treatment units with each of the unit processes of the WWTP discussed
herein. A brief description of the purpose of the equipment is given, followed by a discussion of the
condition of the equipment. The Apparent Basis of Design summarizing the unit processes can be
found in Attachment 1 of this Report.
3.1 WWTP Process
The Norwood WWTP utilizes an activated sludge process for the treatment of influent wastewater
received from the Town of Norwood and surrounding areas. The wastewater treatment process
within the facility consists of the following components:
• Headworks containing screening, grit removal, and flow monitoring
• Aeration Basins
• Secondary Clarifiers
• Chlorine Contact Basins with supporting chemical facilities
• Sludge Storage Tank and Sludge Drying Beds
3.1.1 Headworks
Wastewater is gravity-fed to the WWTP by a 12" pipeline. Wastewater first enters a concrete
headworks basin which contains screening equipment, a grit removal system and a Parshall Flume.
Inside of the headworks basin, flow is first conveyed through a channel containing a mechanical
screen for the removal of solids (Photo 1). The mechanical screen uses an auger to lift the screened
material out of the channel to a discharge chute. This discharge chute conveys the screened
material to a waste bin for disposal. This screen is located in one of two parallel channels, separated
by slide gates. These slide gates allow for diversion of flow around the mechanical screen and
through a manual bar screen if necessary.
The influent mechanical screening equipment is in poor condition.The mechanical screen is installed
in a very shallow channel with limited hydraulic capacity. The screen was noted to have a large hole
in it and is not properly mounted in the channel allowing for some debris to by-pass the screening
process altogether.
After primary screening, the wastewater is conveyed through a grit removal classifier (Photo 2). The
grit classifier consists of a long auger that is designed to remove finer material that bypasses the
screen. At first observation, the grit classifier appears to be functioning correctly. However, closer
inspection reveals that the equipment is not removing any grit. This suggests that the lower half of
Town of Norwood,NC
March 2018 4 WWTP Condition Assessment

the screw is likely no longer attached to the top portion of the screw, or that the lower portion of
the screw has corroded.
Following the grit classifier, the wastewater flows through a Parshall Flume (Photo 3) intended for
flow measurement. The Parshall Flume structure appears to be in good condition, with fiberglass
inserts lining the inside of the flume to increase the accuracy. The geometry of the headworks basin
requires incoming flow to the flume to be diverted 90 degrees just prior to entering the flume. This
abrupt redirection of the flow creates turbulent conditions in the wastewater, resulting in an uneven
water surface and likely unreliable flow measurements.
In general, the concrete structure that makes up the headworks basin too small for the flows
conveyed to the WWTP. During high flow events, wastewater overflows the top of the wall,
resulting in a raw sewage spilling into the surrounding yard. These overflows have occurred on
several occasions resulting in violation of the Plant's operating Permit.
After leaving the Headworks, the wastewater is conveyed to a splitter box prior to entering the
aeration basins (Photo 4). This splitter box relies on two handwheel operated slide gates to regulate
the flow to each of the aeration basins. The splitter box concrete appears to be structurally sound,
but the slide gates have been subjected to years of corrosion and do not operate as they should.
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Town of Norwood,NC
March 2018 5 WWTP Condition Assessment

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Town of Norwood,NC
March 2018 6 WWTP Condition Assessment

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Town of Norwood,NC
March 2018 7 WWTP Condition Assessment

3.1.2 Activated Sludge Process
The WWTP has two 375,000 gallon aeration basins (Photo 5), each equipped with two mechanical
aerators controlled by timers to provide the air required for the activated sludge process. The
oxygen within air is a critical component of the activated sludge treatment process. The oxygen
provided to the wastewater creates an aerobic environment that allows a microbial population to
establish within the aeration basins. This microbial population feeds on the organic pollutants in the
wastewater. Chemicals are added to the wastewater for pH and alkalinity control prior to entering
the aeration basins to create a more suitable condition for the microbial life. After passing through
the aeration basins, the wastewater/microbial mixture, also known as mixed liquor, exits the
aeration basins through a single vertical cast iron outlet pipe.
The mechanical aerators within each basin were observed to be heavily laden with rags, fibers, and
other debris that bypass the headworks screening system or reaglomerate within the basin (Photo
6). This type of accumulation must be periodically removed to prevent mechanical damage and to
ensure adequate oxygen transfer by the aeration equipment. Additionally, each of the mechanical
aerators appears to be approaching the end of their useful life.
The aeration basins lack any form of dissolved oxygen monitoring. The operating staff is unable to
determine if adequate air is being provided to the wastewater for the treatment process. The
mechanical timers used for the aeration system are extremely outdated and unreliable. The timer
system for the mechanical aerators requires operators to manually set a schedule for each aerator
to power on and off. Without any knowledge of the dissolved oxygen concentration within a basin,
the time intervals for the mechanical aerator system are being selected at the operator's discretion.
It is possible that the basins are being over or under supplied with air. This can result in inadequate
treatment, excess energy consumption, or poor mixing within each basin.
During the Condition Assessment, one of the aeration basins was out of service and partially empty,
allowing for the observation of the internal components of its structure. Cracking within the walls
and slabs was noted (Photo 7). The structural integrity of the aeration basin was not investigated as
part of this assessment, but it appears that at least some repair work is merited.
Wastewater treatment plants typically rely on some form of chemical addition to optimize the
WWTP process. For an activated sludge process, pH control is a critical component for proper
operation. Typically, a chemical dosing system is paced proportional to the incoming flow to allow
for the proper amount of chemical addition. Without any form of pH monitoring, the chemicals
must be manually added to the wastewater at the discretion of the operator. Due to variable flow
rates the WWTP water is not receiving proper chemical addition at least part of the time, resulting in
a less effective activated sludge process. This effect is highly evident during periods of wet weather
flow.
Town of Norwood,NC
March 2018 8 WWTP Condition Assessment

After the activated sludge process is complete, the mixed liquor exits the aeration basins through a
vertical cast iron outlet pipe (Photo 8). Under ideal conditions the flow would be evenly divided
between the two aeration basins. However, debris and rag deposits on these outlet pipes often lead
to uneven flow distribution. The result is a flow imbalance within the aeration basins, which can
drastically reduce the treatment efficiency especially during high flow events.
After the mixed liquor exits the aeration basins it flows into several diversion boxes. The diversion
boxes are designed in such a way that allow the incoming mixed liquor to be directed to either of
the two downstream secondary clarifiers. The direction of flow within these diversion boxes is
controlled by slide gates. One of the diversion boxes was observed to have significant structural
damage and the slide gates on both boxes do not function correctly (Photo 9). As a result, when a
clarifier needs to be taken out of service, its corresponding aeration basin must also be taken out of
service.This is highly problematic as it greatly reduces the capacity of the WWTP.
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Town of Norwood,NC
March 2018 9 WWTP Condition Assessment

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Town of Norwood,NC
March 2018 10 WWTP Condition Assessment 1

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Town of Norwood,NC
March 2018 11 WWTP Condition Assessment

3.1.3 Secondary Clarifiers
The WWTP is equipped with two 30-foot diameter clarifiers that separate the microbial mass from
the treated wastewater. Once separated, the treated wastewater flows over the weirs in a
controlled fashion, where it is then conveyed to the chlorine contact basins for disinfection. The
microbial fraction settles to the bottom of the clarifiers in a layer known as 'sludge'. From here, this
sludge can be recycled back to the aeration basins to regenerate the microbial population used in
the activated sludge process or wasted to a sludge drying bed to reduce the microbial population.
Scum that accumulates on the surface of the clarifiers is removed by a rotating scum collector arm
that discharges into a collection trough. The trough leads to a scum pit that accumulates scum until
pumped to the sludge drying beds.
Prior to this Condition Assessment, Clarifier 1 suffered extensive damage and had to be removed
from service. The mechanical equipment within this clarifier is visibly broken, highly corroded, and
will need to be replaced in its entirety (Photos 10 and 11). As previously noted, Aeration Basin 1 was
out of service primarily because of the failure of this clarifier and the inability to manipulate the
slide gates to divert flow from Aeration Basin 1 to Clarifier 2.
Clarifier 2 is operational, and all of the mechanical components are functioning (Photo 12).
However, significant corrosion was observed. In several locations the weirs appear to be out of level
and have pulled away from the clarifier wall (Photo 13). These conditions lead to imbalanced flow
and greatly reduce clarifier efficiency. This situation can lead to excess solids in the effluent during
high flow events, which frequently result in Permit violations.
Town of Norwood,NC
March 2018 12 WWTP Condition Assessment

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Town of Norwood,NC
March 2018 13 WWTP Condition Assessment

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Town of Norwood,NC
March 2018 14 WWTP Condition Assessment

3.1.4 Disinfection
Treated water from the secondary clarifiers is conveyed to chlorine contact basins for disinfection
(Photo 14). Water enters the basins, where it is treated with chlorine to kill any remaining
microorganisms in the clarified wastewater. The basins are designed in such a way that water is
conveyed through serpentine channels to ensure chlorine contact time of at least 30 minutes. Just
prior to discharge from the basins, the water is treated with calcium thiosulfate to remove any
residual chlorine. This dechlorination step is essential to reduce the toxicity of the treated effluent
and reduce its impact on aquatic life. After the water is dechlorinated, it is conveyed through an
effluent pipe and discharged to Rocky River.
The chlorine contact basins are connected to the plant drainage system so they may be periodically
drained and cleaned. The drainage valve on one of the contact basins is inoperable. Staff must
therefore manually manipulate flows in the basins by installing a stand pipe in the drainage outlet.
Access to this outlet is only available by entering the basin therefore presenting a safety hazard.
Disinfection is accomplished utilizing gaseous chlorine, the gas is purchased in pressurized cylinders
and stored in the chlorine building. The gas is converted into a solution utilizing chlorination
equipment (Photo 15) and conveyed in a solution to the point of application at the head of the
chlorine contact chambers. The chlorine building is equipped with a fan, but lacks a gas detector as
required by safety regulations. This creates an extremely dangerous safety hazard and should be
corrected immediately. Dechlorination chemicals are housed in an adjacent enclosure (Photo 16).
Dechlorination is accomplished utilizing liquid calcium thiosulfate which is also conveyed in a
solution to the chlorine contact chambers. Both the chlorine building and the dechlorination
enclosure appear to be in good condition (Photo 17).
Town of Norwood,NC
March 2018 15 WWTP Condition Assessment

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Town of Norwood,NC
March 2018 16
WWTP Condition Assessment

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Town of Norwood,NC
March 2018 17 WWTP Condition Assessment

3.1.5 Sludge Management
Healthy activated sludge from the bottom of the secondary clarifiers is returned to the aeration
basins to maintain appropriate concentration of biomass under aeration. Accurate control of the
recycle rate is important to maintaining the appropriate population in the aeration basins. Excess
sludge grown as part of the process must be wasted and properly disposed. The control of recycling
and wasting is a highly variable process that must be constantly adjusted by the treatment plant
operators. The rate of sludge recycled is typically varied along with the influent flow rate of the
Plant. Sludge is withdrawn from the bottom of the clarifiers utilizing pumps located in the Pump
Room beneath the Control Building (Photo 18). These pumps are also capable of conveying scum
from the scum pit, or water from the plant drainage system back into the aeration basin or to the
sludge wasting facilities. Regardless of the source, the pumps are designed to convey fluids through
a single force main located between the aeration basins, where the sludge can be diverted back in
to the basins to recycle, or further conveyed to the sludge drying bed (Photo 19). In conjunction
with drying beds the facilities utilize an old Imhoff tank that was part of the original treatment
process (Photo 20). This tank is not well suited for sludge storage but is nonetheless utilized by the
staff when additional storage capacity is necessary.
Currently, there are no metering devices for the sludge return wasting lines. Consequently, there is
no way for the operating staff to gauge how much sludge is being recycled or wasted. This
frequently results in an over or underestimation of the sludge pumping rate, and overly complicates
the operations process. Furthermore, there is no way for the treatment plant staff to automatically
vary their recycling rate to match changes in influent flows.
The sludge drying bed is essentially a large sand filter. Wasted sludge is pumped from the secondary
clarifiers to the sludge drying bed. A liquid portion of the sludge seeps through the drying bed
media and is returned to the aeration basins. The remaining solids are left to dry in the sun, then
hauled away to a sanitary landfill. During the sludge removal process a portion of the sand from the
drying bed is typically removed along with the solids and the bed must therefore be replenished.
Although the sludge drying bed is an effective means of dewatering, it is very labor intensive and
requires almost constant care. During periods of wet weather, it is not unusual for a treatment
plant to have difficultly wasting sufficient solids; therefore, the use of an auxiliary tank and alternate
method of disposal are highly recommended.
Town of Norwood,NC
March 2018 18 WWTP Condition Assessment

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Town of Norwood,NC
March 2018 19 WWTP Condition Assessment

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Town of Norwood,NC
March 2018 20 WWTP Condition Assessment
1

3.2 Electrical System
The Norwood WWTP is supplied 480-volt, 3 phase power from an overhead utility connection.
Utility power is fed into a main service panel located inside the Generator Building. From there it is
distributed to the various electrical components of the WWTP. A majority of the electrical
infrastructure was installed as part of the 1971 construction and is nearing the end of its useful life.
I n isequippedwith1 kwgenerator, capable of poweringthe Plant in the event of a
The pat t a 50 p
power outage (Photo 21). The generator was originally equipped with an automatic transfer switch
intended to activate the generator during a power outage. This transfer switch no longer functions
and although the generator can be utilized it must be manually started and transferred in the event
of a power outage. The generator receives fuel from an above ground storage tank located just
outside the Generator Building. This tank does not have an appropriate level indicator and lacks
secondary containment. The generator was previously fed from an underground storage tank that is
reportedly abandoned in place.
Many of the electrical components throughout the Plant are nearing the end of their useful life. A
good example of this would be the disconnect switches and retrofitted variable frequency drive
controllers located in the Pump Room. These controllers are intended to allow for variations in flow
rate. Unfortunately, after any power outage these devices must be manually restarted. In the event
of short outages, the operating staff does not know if the pumps had discontinued operation until
their next visit to that area of the Plant. On several occasions the pumps have been left off for an
extended period of time thereby upsetting the biological process due to a lack of adequate sludge
recirculation.
3.3 Controls
The Wastewater Treatment Plant does not have any form of Supervisory Control and Data
Acquisition (SCADA). SCADA systems allow an operating staff to monitor the condition of a Plant
when they are not onsite. This capability is extremely useful for treatment plants that are operated
on a part-time basis as it allows for operators to monitor the status and condition of individual plant
processes, or be notified in the event of a power outage.
Town of Norwood,NC
March 2018 21 WWTP Condition Assessment

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Town of Norwood,NC
March 2018 22 WWTP Condition Assessment

3.4 Building and Grounds
The WWTP is equipped with a two-story Control Building (Photo 22) which houses the laboratory,
storage and restroom on the upper level and the recycle pump room on the lower level. The Town
staff has recently undertaken some improvements to the building. It has been freshly painted inside
and outside and repairs are ongoing. On the lower level there is some significant corrosion on the
staircase and there are other metal components that need to be addressed as part of these
improvements.
Given the age and condition of the facilities there are several safety concerns that should be
addressed. In general, adequate guard rails or other methods of fall protection should be provided
around any open pit or liquid containing unit process area. Currently a fall chain is used around
some of the basins in an attempt to provide worker safety (Photo 23), but these provisions do not
fulfill the requirements of modern safety regulations.
The WWTP was also originally equipped with site wide lighting most of which has failed. Adequate
lighting should be provided throughout the treatment plant site to provide a safe working
environment to the operating staff when working at night. Likewise, portions of the electrical
system that have been upgraded have in resulted in some abandoned conduit and control boxes
throughout the Plant (Photo 24). These abandoned electrical facilities represent a safety hazard
since the treatment plant staff may not know which devices are energized and which have been fully
abandoned.
A 6-foot-high barbed wire fence surrounds the entire property to prevent unauthorized entrance.
There are several portions of the fence that are seriously damaged from fallen trees (Photo 25).
Town of Norwood,NC
March 2018 23 WWTP Condition Assessment

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Town of Norwood,NC
March 2018 24 WWTP Condition Assessment

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Town of Norwood,NC
March 2018 25 WWTP Condition Assessment
I

4 Treatment Process Evaluation
4.1 Model Development
To analyze and evaluate the performance of the WWTP, a wastewater treatment process
simulation software was utilized. BioWin, produced by EnviroSim, is a state-of-the-art modeling
software that allows the user to input influent design conditions and simulate how a plant
process would treat the wastewater. The user can manipulate broad parameters, such as water
temperature and flow, as well as extremely specific parameters, such as the biological growth
rate of a certain type of bacteria.
Willis Engineers used historical data, drawings, and physical observation to develop a model of
the Norwood WWTP. Each unit process was sized based on measurements given in the original
WWTP plans. Sludge pumping rates were calculated based on manufacturer curves. The layout
of the Norwood WWTP Model developed in BioWin can be found below in Figure 2.
Aeration Basin 1
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Influent � < Effluent
Aeration Basin 2
Peak Flow Wastage
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Figure 2-Norwood WWTP Model used for the BioWin Simulations
Three simulations were then analyzed using the Norwood WWTP Model:
• Simulation 1 - Existing Conditions. The purpose of this simulation was to make a
calibrated model of the existing treatment process to establish how the WWTP will
operate in average conditions.
• Simulation 2- 80% of Design Flow. The purpose of this simulation was to assess how the
WWTP would manage the increased flows expected from future development.
• Simulation 3 - Peak Flow Event. The purpose of this simulation was to analyze how the
activated sludge process would be impacted under high stress conditions. A surge of
water was delivered to the Model to replicate conditions similar to a large rainfall event.
Town of Norwood,NC
March 2018 26 WWTP Condition Assessment

The influent wastewater characteristics used for the simulations were developed using
historical data available from the Discharge Monitoring Report (DMR) data. When constituent
data was not available, values were estimated based on common literature values for low
strength wastewater. The intention was to develop a baseline for the average conditions
treated at the WWTP. The parameters input into the Norwood WWTP Model are discussed and
defined below in Table 1.
• Flow - The influent daily flow of wastewater coming into the plant. This value was
taken from the DMR data.
• Influent Total Suspended Solids(Influent TSS)-The concentration of solids entering the
WWTP from the influent sewer system.This value was taken from the DMR data.
• Influent Biological Oxygen Demand (Influent BOD) - The concentration of organic
matter entering the WWTP from the influent sewer system. This value was taken from
the DMR data.
• Influent Total Nitrogen (Influent TN) - The concentration of nitrogen entering the
WWTP from the influent sewer system. This value was estimated from literature
sources and industry experience.
• Influent Total Phosphorus (Influent TP) - The concentration of phosphorous entering
the WWTP from the influent sewer system. This value was estimated from literature
sources and industry experience.
• Mixed Liquor Suspended Solids (MLSS) - The concentration of the microorganisms in
the aeration basin.This value was estimated from the WWTP staff.
The table below summarizes the values input into the Norwood WWTP Model. It should be
noted that the flow presented in the table represents the average daily flow, and is not the
same flow value used for Simulation 2 or 3.
Table 1-Influent Wastewater Criteria used for the Norwood WWTP Model.
Flow Influent BOD Influent TSS Influent TN Influent TP MLSS
(MGD) (mg/L) (mg/L) (mg/L) (mg/L) (mg/L)
0.34 100 140 20 5 4500
Town of Norwood,NC
March 2018 27 WWTP Condition Assessment

4.2 Results and Discussion
4.2.1 Simulation 1—Existing Conditions
This simulation served as a calibration tool for the Norwood WWTP Model. The Simulation was run
several times and minor adjustments were made in the Model's unit processes until the effluent
parameters were similar to that reported in the WWTP Data. The results comparing the actual
WWTP operating parameters (WWTP Data) to the simulation of the existing WWTP (Simulation 1)
are shown below in Table 2.The following results were recorded:
• Mixed Liquor Suspended Solids (MISS) - The concentration of the microorganisms in
the aeration basin.
• Effluent Total Suspended Solids (Effluent TSS) - The concentration of solids leaving the
WWTP.
• Effluent Biological Oxygen Demand (Effluent BOD) — The organic matter leaving the
plant that was not consumed in the activated sludge process.
Table 2-Results of Simulation 1,compared to actual WWTP data
MISS Effluent TSS Effluent BOD
(mg/L) (mg/L) (mg/L)
WWTP Data 4500 10 9
Simulation 1 4495 10 10
The similarity between Simulation 1 and the WWTP Data suggests the Norwood WWTP Model is a
suitable representation of the current operations of the facility. It should be noted that this model is
calibrated from a limited dataset and observational approximations, and should not be taken as a
guarantee of WWTP performance.
Town of Norwood,NC
March 2018 28 WWTP Condition Assessment

4.2.2 Simulation 2—80% of Design Flow
Simulation 2 maintained the same process controls used in Simulation 1 (sludge pumping rates,
influent criteria, etc). The only change was the increase of flow to 80% of the WWTP's design
capacity. This flow was selected because at this level, the State typically requires a utility owner to
begin planning efforts for a new or expanded WWTP.
The results of the simulation are shown in Table 3 below. A row highlighting the WWTP's Permit
limits was added for discussion purposes.
Table 3- Results of Simulation 2,compared to actual WWTP Data and the NPDES Permit limits.
Flow MISS Effluent TSS Effluent BOD
(MGD) (mg/L) (mg/L) (mg/L)
WWTP Data 0.34 4500 10 9
Simulation 2 0.60 5229 22 9
NPDES Permit 0.75 - 30 30
The results of this simulation indicate that the WWTP will be able to achieve its Permit limits at 80%
of design flow if the facilities are properly maintained and operated. It should be noted that both
the MLSS and the Effluent TSS were affected by this flow increase, Effluent BOD remained the same.
This increase of mass within the aeration basins and WWTP effluent can be lowered by increasing
the wasting rate of the WWTP. Considerations should be taken into investigating the sludge
management capacity of the Norwood WWTP knowing that production quantities will increase with
additional flow.
Town of Norwood,NC
March 2018 29 WWTP Condition Assessment

4.2.3 Simulation 3—Peak Flow Event
As mentioned in previous sections of this Report, peak flow events are highly detrimental to the
wastewater treatment plant process. In addition to the potential for overflowing the headworks,
the increased flow into the Plant can limit its ability to provide adequate treatment. Perhaps of
greater concern is the limitation that the treatment plant has for containing its healthy biological
component during high flow events. These high flow scenarios can be simulated utilizing the BioWin
process to illustrate their effect on the treatment plant and its ability to recover.
The Norwood Plant currently provides service to a population of approximately 2,400 people. Under
accepted design practices a facility of this size should be able to handle a hydraulic peak of
approximately 3.5 times its rated capacity.The Norwood WWTP has a design flow rate of 0.75 MGD,
with a corresponding peak rate of 2.63 MGD. It is doubtful that the treatment plant could convey
this quantity of water without overflowing. It is even more doubtful that it can process high flows
without washing out a portion of the activated sludge.
A BioWin simulation was therefore constructed to mimic the effects of a high flow event. This
simulation maintained the same process controls used in Simulation 1 (sludge pumping rates,
influent criteria, etc.). The only change was the addition of excess water into the Model to increase
flow to 3.5 times the design capacity.
For Simulation 3, a time series graph is presented showing the Total Aeration Basin Solids Mass and
Total Clarifier Solids Mass during a peak flow event lasting 12 hours. For this simulation, the peak
flow event commences on 11/6 at 12:00 pm and ends on 11/7 at 12:00 am. The results of the
simulation are shown below in Graph 1.
30000
25000 ,
4
�, 20000
m
VI 15000
Y 10000
0
H i
5000
0
11/5/2017 11/6/2017 11/7/2017 11/8/2017 11/9/2017
-Total Aeration Basin Solids Mass -Total ClarifierSolids Mass
Graph 1-Simulation 3resuIts,showing TSS Mass during a peak flow event.
Town of Norwood,NC
March 2018 30 WWTP Condition Assessment

The graph above illustrates a washout of the aeration basin occurring during the peak flow event.
The solids within the aeration basin were significantly reduced during the peak event. The clarifiers
appear to have captured some of the aeration basin mass during the washout, but due to their size,
the majority of the solids ultimately washed out of the wastewater plant. Events like this have been
noted by the treatment plant staff immediately after a large rainfall event. The amount of healthy
biological mass remaining in the treatment plant was significantly reduced.
Although the WWTP did not lose its entire microorganism population in the simulation, the aeration
basins may take several weeks to return to normal operating levels. The only practical method for
combatting this type of high flow event is to have excessively large clarifiers which are capable of
capturing any biomass loss from the aeration basins and keeping them within the treatment plant
until the high flow conditions subside.
Town of Norwood,NC
March 2018 31 WWTP Condition Assessment

5 Recommendations
As described in previous sections of this Report, there are several areas of the WWTP that require
immediate attention in order to ensure their continued reliability and to meet the requirements of
the NPDES Permit. It is therefore recommended the Town undertake some immediate repairs at the
Treatment Plant. In addition, there are some significant improvements that need to be undertaken
to ensure a longer-term reliability of the Treatment Plant. These projects can be undertaken over a
longer period of time and can be structured as a traditional Capital Improvement Plan.
5.1 Immediate Repairs
The following recommendations are for immediate repairs to be undertaken at the WWTP as listed
in order from the highest priority to lowest. These immediate repair items have been tabulated in
Attachment 2.
1. Chlorine Safety Improvements — Improve safety in the chlorine storage building by
installing a chlorine gas detector. Repair or replace the valves at the chlorine contact
chambers to allow them to be removed from service for cleaning. The estimated total
cost for these repairs is$20,000.
2. Clarifier and Slide Gate Repairs — Replace the Secondary Clarifier No. 1 mechanism,
including replacement of the bridge, drive, scrapper mechanism, weirs and baffles.
Replace the slide gates and repair the diversion box upstream of Secondary Clarifier No.
2.These repairs will likely cost$300,000.
3. Aeration Basin Cleaning — Continue dewatering Aeration Basin No. 1 and remove any
accumulated solids, repair damaged concrete as appropriate. The estimated cost of
this work is$50,000.
4. Headworks Repairs — Repair the damaged screening equipment and install additional
wall sections to allow for higher water levels upstream of the cleaning systems. The
estimated cost of these headworks repairs is $100,000.
5. Electrical Repairs - Make improvements to the Plant electrical systems by replacing the
automatic transfer switch and repairing components of the electrical system sufficient
to allow the generator to function automatically in the event of a power outage. The
total cost for this work is $30,000.
6. Basic Monitoring/SCADA— Install some basic monitoring functions in the Plant. Either
through the installation of a centralized SCADA system or the purchase of multiple
remote terminal units (RTUs) similar to those utilized at the Town's wastewater
pumping stations. These functions should be sufficient to alert operating staff in the
Town of Norwood,NC
March 2018 32 WWTP Condition Assessment

event of a power outage or major interruption at the Treatment Plant. This effort will
likely cost$50,000.
5.2 Capital Improvement Plan
Other areas of the Wastewater Treatment Plant also require improvement but can be deferred for
some period of time before they become critical. This allows the Town an opportunity to develop a
Capital Improvement Plan and undertake improvements in more manageable sized projects
described herein and further tabulated in Attachment 3.
1. Headworks Replacement - Make improvements at the Headworks including replacement of
the mechanical screens and its associated solids handling equipment, replacement of the grit
classifier and appurtenant systems, and fixing the basin hydraulics to improve the accuracy of
the flowmeter. Ideally the entire headworks structure will be replaced with an all-in-one
system.The estimated cost for this all-in-one system is$250,000.
2. Aeration Basin Renovation -The WWTP's activated sludge process could be greatly improved.
The single pipe discharge should be replaced with a weir system to create a balanced flow
through the WWTP. A chemical feed system should be added and integrated into the
proposed SCADA system so chemical dosing can be paced based on plant flow. Replace the
mechanical aerators and the timer system of each aeration basin, and install new dissolved
oxygen meters within each basin. This work will cost approximately$500,000.
3. Clarifier Mechanical Replacement - Replace the Secondary Clarifier No. 2 mechanism,
including replacement of the bridge, drive, scrapper mechanism, weirs and baffles. Replace
the slide gates and repair the diversion box upstream of Secondary Clarifier No. 2. These
repairs will likely cost$300,000.
4. Pumping Improvements - Some improvements should be made to reduce the complexity and
increase the control capabilities of the recycle and wasting pumps. One significant
improvement would be to install a new chopper pump to remove scum from the scum pits
and separate the function from the recycle pumping. It is also recommended that the variable
speed drives on the pumps be replaced and the pumps thoroughly serviced. Replacement of
several of the discharge valves may also be necessary. The estimated cost of this work is
$200,000.
5. Piping and Valves —A number of the isolation valves and control valves within the Treatment
Plant piping network need to be replaced, including those in the diversion boxes and splitter
boxes, as well as some of the isolation valves throughout the process piping network. The
estimated cost for these repairs is$100,000.
Town of Norwood,NC
March 2018 33 WWTP Condition Assessment

6. Sludge Management Facilities — It is recommended that the Town install a larger aerated
sludge storage basin to allow for fluctuations and the ability to process and dispose of excess
solids. These facilities would likely include a cast in place concrete tank equipped with an
aeration and mixing system along with appropriate pumping equipment for transferring
sludge to the drying beds or to tanker trucks for offsite disposal. The estimated cost for these
facilities is$500,000.
7. Chemical Systems - The chlorination and dechlorination systems could be significantly
improved to become more efficient. The current liquid calcium thiosulfate system could be
replaced with sulfur dioxide and both gaseous system renovated with new chlorination and
sulfination equipment. Currently the Plant utilizes potable water to extract gas from their
respective containers. A non-potable water system could be installed to provide the necessary
water and eliminate the use of potable water. The estimated cost for these improvements is
$100,000.
8. Site Safety - Improvements should be made throughout the Plant to improve worker safety.
This work should include repairing and adding site lighting, installing proper fall protection
systems around each basin, removing any abandoned electrical equipment, and repairing the
perimeter fencing. The estimated cost for these improvements is $100,000.
9. Electrical Improvements — Virtually all of the electrical equipment from the original
construction will need to be replaced in its entirety. The work could be undertaken as part of
other mechanical improvements but the remaining components including a distribution panel
and circuit protective devices at each of the mechanical equipment locations should be
replaced. This work will likely cost$300,000.
10. SCADA System — Install an integrated SCADA system capable of monitoring critical plant
functions. The SCADA system should provide a means for recording operations at the Plant
and allowing offsite operators to be notified in the event of plant upset or emergency. This
work will likely cost$150,000.
The total combined cost of these Capital Improvement projects would be approximately$2,500,000.
Town of Norwood,NC
March 2018 34 WWTP Condition Assessment

5.3 Long-Term Planning
The deficiencies noted in this Report and the recommended repairs are intended to restore the
Plant to its current rated capacity and provide more reliable service. These actions do not
adequately address the long-term wastewater treatment needs of the Town. As noted previously,
many of the components of the WWTP are original to the 1970's construction and are near the end
of their useful life. With an aggressive maintenance and repair program, the Town can reasonably
expect to prolong the life of the Plant for another decade or more, but then will likely need to
undertake a major upgrade/replacement project.
Given the complexity and cost of these projects, planning should begin well in advance. It is strongly
recommended that the Town develop a long-term plan for a replacement Plant. Likewise, a funding
plan needs to be developed early to begin building some capital reserves and reduce the Town's
reliance on debt financing.
Alternately, if the Town can develop an adequate financial plan and receive grant funding it could
proceed with a more aggressive renovation and replacement schedule. In all likelihood rebuilding
the treatment plant would be undertaken in two phases. The first phase would likely include the
following components:
• Replacement of the Headworks
• Modification of the Aeration Basin Outlet Weirs
• Installation of two new Secondary Clarifiers
• Addition of an Ultraviolet Disinfection System
• Addition of new Sludge Thickening and Digestion Facilities
The general arrangement of these components within the existing Plant site is shown schematically
on Figure 2. The estimated cost of these facilities is approximately$5,000,000.
Ultimately the Plant would need additional improvements including replacement of the majority of
the remaining treatment systems and facilities. Some of this work can be undertaken over time but
in all likelihood would cost an additional $5,000,000 to $8,000,000. The result of these two projects
would be an entirely new wastewater treatment plant constructed on the existing Plant site.
Town of Norwood,NC
March 2018 35 WWTP Condition Assessment

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TOWN OF NORWOOD MARCH 2018
NORWOOD WWTP
WIIIISENGINEERS CONDITION ASSESSMENT
SITE DIAGRAM FIGURE 1

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11 SLUDGE STORAGE TANK 15
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14 ULTRAVIOLET DISINFECTION 14 p
15 RAS/WAS
TOWN OF NORWOOD MARCH 2018
NORWOOD WWTP PRELIMINARY
WIIIISENGINEERS REPLACEMENT PLAN
PHASE 1 FIGURE 2

Apparent Basis of Design Attachment 1
Design Parameters:
Influent
Average Daily Flow 750,000 gpd
Peak Hourly Flow 2,625,000 gpd
BOD (5-day) 100 mg/I
Total Suspended Solids 140 mg/I
Effluent Limits:
BOD (5 day) Weekly 45 mg/L
Monthly 30 mg/L
Total Suspended Solids Weekly 45 mg/L
Monthly 30 mg/L
Process
1 Headworks
Influent Screening
Mechanical Screen
Number of Units 1
Type Drum Screen with Screw Auger
Drive 0.5 HP
Accessories Discharge Chute
Manual Screen
Number of Units 1
Type Bar Screen
Width 1'-6"
Height 3'-10"
Grit Collector
Number of Units 1
Type Clarifier Auger
Drive 0.5 HP
Parshall Flume
Throat Width 6 in
Measurement Ultrasonic Level Transmitter
Willis Engineers Town of Norwood,NC
March 2018 WWTP Condition Assessment

Apparent Basis of Design Attachment 1
2 Activated Sludge Process
Aeration Basins
Number of Units 2 Basins
Volume 375,000 gal, Each
Mechanical Aerators
Number of Units 2 per Basin
Type FloatingAerator
Drive 15 HP
3 Secondary Clarification
Number 2 Units
Diameter 33 ft
Depth (SWD) 10 ft
Volume 64,000 gal/unit
Mechanism Platform Mounted Rake and Scum Collector
Drive 0.5 HP
4 Sludge Pumps
Number 3 Pumps
Type Self-Priming Centrifugal
Capacity 400 gpm
Drive Size 5 HP
5 Disinfection
Type Chlorine Gaseous
Number of Basins 2
Disinfection Volume 372 ft3/basin
Dechlorination Calcium Thiosulfate
Dechlorination Volume 37.5 ft3/basin
6 Sludge Treatment
Storage Converted Imhoff Tank
Drying Sludge Drying Bed
Area 4000 ft2
Willis Engineers Town of Norwood,NC
March 2018 WWTP Condition Assessment

Cost Estimate Attachment 2
Immediate Repairs
Item Estimated Cost
1 Chlorine Safety Improvements $20,000
2 Clarifier and Slide Gate Repairs 300,000
3 Aeration Basin Cleaning 50,000
4 Headworks Repairs 100,000
5 Electrical Repairs 30,000
6 Basic Monitoring/SCADA 50,000
Total Budget $550,000
Willis Engineers Town of Norwood,NC
March 2018 WWTP Condition Assessment

Cost Estimate Attachment 3
Capital Improvement Plan
Item Estimated Cost
1 Headworks Replacement $250,000
2 Aeration Basin Renovation 500,000
3 Clarifier Mechanical Replacement 300,000
4 Pumping Improvements 200,000
5 Piping and Valves 100,000
6 Sludge Management Facilities 500,000
7 Chemical Systems 100,000
8 Site Safety 100,000
9 Electrical Improvements 300,000
10 SCADA System 150,000
Total Planning Budget $2,500,000
Willis Engineers Town of Norwood,NC
January 2018 WWTP Condition Assessment

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