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BOARD OF COMMISSIONERS AGENDA | 1 of 1
Agenda
BOARD OF COMMISSIONERS
Remote work session
7 p.m. Aug. 23, 2021
Virtual meeting via YouTube Live
Town of Hillsborough YouTube channel
Due to current public health concerns, this meeting will be conducted remotely
using Zoom.
Please use the bookmark feature to navigate and view the item attachments.
1. Opening of the work session
2. Agenda changes and approval
3. Items for decision ― consent agenda
A. Miscellaneous budget amendments and transfers
B. Minutes – regular meeting June 14, 2021 (amended)
C. Classification and pay amendment – reclassify chief water plant operator to plant maintenance mechanic I
and title change for one water plant operator III to operator in responsible charge
4. In-depth discussion and topics
A. Collection System Needs – update and recommended path forward to accommodating growth and
needed sewer capacity and its impact on planning
B. High Importance emails discussion
5. Other business
6. Committee updates and reports
7. Adjournment
Interpreter services or special sound equipment for compliance with the American with Disabilities Act is available
on request. If you are disabled and need assistance with reasonable accommodations, call the Town Clerk’s Office
at 919-296-9443 a minimum of one business day in advance of the meeting.
AGENDA ABSTRACT | 1 of 1
Agenda Abstract
BOARD OF COMMISSIONERS
Meeting date: Aug. 23, 2021
Department: Administration
Public hearing: No
Date of public hearing: N/A
PRESENTER/INFORMATION CONTACT
Emily Bradford, Budget Director
ITEM TO BE CONSIDERED
Subject: Miscellaneous budget amendments and transfers
Attachments:
Budget Changes Detail Report
Brief summary:
To adjust budgeted revenues and expenditures, where needed, due to changes that have occurred since budget
adoption.
Action requested:
Consider approving budget amendments and transfers.
ISSUE OVERVIEW
Background information and issue summary:
N/A
Financial impacts:
As indicated by each budget amendment.
Staff recommendation and comments:
To approve the attached list of budget amendments.
For clerk’s use
AGENDA ITEM:
3.A
Consent
agenda
Regular
agenda
Closed
session
BUDGET CHANGES REPORT
TOWN OF HILLSBOROUGH
FY 2021-2022
DATES: 08/23/2021 TO 08/23/2021
REFERENCE NUMBER DATE BUDGET CHANGE BUDGET
ORIGINAL BUDGET AMENDEDCHANGE
USER
10-00-9990-5300-000 CONTINGENCY
08/23/2021 400,000.00 -53,000.00To extend Isley contract through 9/21 23990 296,300.00EBRADFORD
10-10-4400-5300-459 C.S./ACCOUNTING ASSISTANCE
08/23/2021 1,000.00 53,000.00To extend Isley contract through 9/21 23989 54,000.00EBRADFORD
30-80-7220-5300-455 C.S./ENGINEERING
08/23/2021 27,500.00 17,000.00To re-est PO not rolled to FY22 23991 44,500.00EBRADFORD
30-80-8120-5300-145 MAINTENANCE - BUILDINGS
08/23/2021 6,000.00 18,866.00To reinstate funds for FY21 PO that didn't 23987 24,866.00EBRADFORD
30-80-9990-5300-000 CONTINGENCY
08/23/2021 400,000.00 -18,866.00To reinstate funds for FY21 PO that didn't 23988 381,134.00EBRADFORD
08/23/2021 400,000.00 -17,000.00To re-est PO not rolled to FY22 23992 364,134.00EBRADFORD
0.00
EBRADFORD 9:02:38AM08/18/2021
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Contingency
Accounting
Utilities
Admin.
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WSF-
Contingency
AGENDA ABSTRACT | 1 of 1
Agenda Abstract
BOARD OF COMMISSIONERS
Meeting date: Aug. 23, 2021
Department: Administration
Public hearing: No
Date of public hearing: N/A
PRESENTER/INFORMATION CONTACT
Interim Town Clerk Sarah Kimrey
ITEM TO BE CONSIDERED
Subject: Minutes – regular meeting June 14, 2021 (amended)
Attachments:
Regular meeting June 14, 2021 (amended)
Brief summary:
None
Action requested:
Approve amended minutes of the Board of Commissioners regular meeting June 14, 2021 (added budget
amendments report).
ISSUE OVERVIEW
Background information and issue summary:
None
Financial impacts:
None
Staff recommendation and comments:
Approve amended minutes as presented.
For clerk’s use
AGENDA ITEM:
3.B
Consent
agenda
Regular
agenda
Closed
session
Minutes
Board of Commissioners
Remote regular meeting
7 p.m. June 14, 2021
Virtual meeting via YouTube Live
Town of Hillsborough YouTube channel
Present: Mayor Jenn Weaver and commissioners Mark Bell, Robb English, Kathleen Ferguson, Matt
Hughes, and Evelyn Lloyd
Staff: Interim Human Resources Director Haley Bizzell, Budget Director Emily Bradford, Assistant to
the Manager/Deputy Budget Director Jen Della Valle, Interim Town Clerk/Human Resources
Technician Sarah Kimrey, Stormwater and Environmental Services Manager Terry Hackett,
Police Chief Duane Hampton, Assistant Town Manager/Planning Director Margaret Hauth,
Interim Public Works Director Dustin Hill, Town Attorney Bob Hornik, Town Manager Eric
Peterson, Utilities Director Marie Strandwitz, Public Space Manager Stephanie Trueblood and
Public Information Officer Catherine Wright
Opening of the meeting
Mayor Jenn Weaver called the meeting to order at 7:03 p.m. Interim Town Clerk and Human Resources
Technician Sarah Kimrey called the roll and confirmed the presence of a quorum.
1. Public charge
Weaver did not read the public charge.
2. Audience comments not related to the printed agenda
There was none.
3. Agenda changes and approval
The mayor noted a change sent by the budget director by email prior to the meeting regarding the
Community Development Block Grant project ordinance and an associated budget amendment. She also
noted a change sent by the deputy budget director earlier regarding amending the miscellaneous budget
amendments with two additional amendments regarding an aerator blower.
Motion: Commissioner Kathleen Ferguson moved to approve the amended agenda. Commissioner Mark
Bell seconded.
Kimrey called the roll for voting.
Vote: 5-0. Ayes: Commissioners Bell, Robb English, Ferguson, Matt Hughes and Evelyn Lloyd. Nays: 0.
4. Public hearings
A. Request to close unopened right of way named Cole Avenue
The mayor opened the public hearing. Assistant Town Manager and Planning Director Margaret Hauth said
Cole Avenue is an unopened lane that separates property between two neighbors, serves no purpose, is
unimproved and has no utilities. The closure was requested by one of the neighbors. Both neighbors were in
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DRAFT
attendance at the meeting. The property owner who made the request, Mark Rhoades, said the closure would
allow the two neighbors to have a cleaner property line and would remove questions of maintenance
responsibilities along the boundary. Hauth said the other neighbor, Christina Perrella, had noted in an email
that she was planning to observe rather than participate in the meeting. The mayor asked for confirmation
that both parties are amenable to the request. Hauth said she had not heard otherwise.
Motion: Ferguson moved to close the public hearing. Bell seconded.
Kimrey called the roll for voting.
Vote: 5-0. Ayes: Bell, English, Ferguson, Hughes and Lloyd. Nays: None.
B. FY2022 budget public hearing
Mayor Weaver opened the public hearing. A water and sewer customer, William Johnson, provided a brief
presentation against increasing utility rates. His presentation included a comparison of rates with surrounding
communities and a look at specific aspects of the town’s water and sewer fund. There were no other
speakers. The mayor said the board received public comments from three other people via email. She
summarized them:
• Will Lane, who attended the town’s academy on operations, said he was glad to see funding for future
sessions, thanked staff for making the budget document easy to understand, and said he wants to see
the property tax rate stay the same.
• Lavone Tucker expressed concerns about out-of-town water and sewer rates. The mayor noted that
the town manager had responded to the email.
• Michelle Jenkins was curious about the location for the proposed installation of a bench on Nash
Street and had some questions about the installation.
The mayor said the board also received a letter from Fairview Community Watch asking for signage to be
changed to rename the community center in the neighborhood after Dorothy Johnson.
Motion: Bell moved to close the public hearing. Ferguson seconded.
Kimrey called the roll for voting.
Vote: 5-0. Ayes: Bell, English, Ferguson, Hughes and Lloyd. Nays: None.
5. Items for decision ― consent agenda
A. Minutes
1. Joint Public Hearing April 15, 2021
2. Regular meeting May 10, 2021
3. Work session May 24, 2021
B. Miscellaneous budget amendments and transfers (revised item)
C. Miscellaneous Tourism Board amendments and transfers
D. Hillsborough Tourism Board FY2022 Budget Ordinance
E. Proclamation Commemorating Juneteenth Independence Day
F. Consistency statement and ordinance amending Unified Development Ordinance Sections 7.5 – limiting the
requirement to combine nonconforming lots
G. Consistency statement and ordinance amending Unified Development Ordinance Sections 5.1.6 and 5.1.7,
Table of permissible uses
H. Reclassification and pay amendment – utilities analyst position to civil engineer
I. Deed restriction for all town parcels surrounding the West Fork Eno Reservoir
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J. Special event permit – road closure and sponsorship request for police service for Juneteenth March
K. NC 86 Connector Study (Phase II)
L. Community Development Block Grant (CDBG-CV) project ordinance and associated budget amendment
(added item)
Motion: Ferguson moved to approve all items on the amended consent agenda. Bell seconded.
Kimrey called the roll for voting.
Vote: 5-0. Ayes: Bell, English, Ferguson, Hughes and Lloyd. Nays: None.
6. Items for decision ― regular agenda
A. Consistency statement and ordinance amending Unified Development Ordinance Sections 5.2.9.2 and 6.3.1 –
citizen request related to accessory dwelling units and setbacks
Planning Director Margaret Hauth said she placed this request for text amendments on the regular agenda vs.
the consent agenda because the Planning Board had a lot of discussion on it at the public hearing. She said
the request is from a private property owner who would like to construct an accessory dwelling on the
property. The ordinance does not allow accessory dwellings on private roads. The owner also would like to
change the setback requirements of the property, which is zoned agricultural residential and has setbacks of
50 feet on all sides. The structures on this property are built closer to the property line already. The owner is
asking to conform with setbacks in a nearby neighborhood, with a 40-foot setback in front and 30-foot
setbacks on the other sides. Hauth said staff does its best to find options that don’t involve changing the
ordinance since it is a solution that impacts the entire town. She said the Planning Board’s recommendation
to allow accessory dwellings on private roads was not unanimous.
She answered questions from the board. She said the property is on Burnside Drive and is one of a few
agricultural residential areas serviced by town water and sewer. Most agricultural residential zoning is outside
town limits, and the impact of the request would be very limited, especially for the setback issue.
Hughes suggested separating the vote on setbacks and accessory dwelling units.
There was additional discussion. Hauth noted a change in the setback would affect all land zoned agricultural
residential. She said that properties with the designation include the mining area and some places in West
Hillsborough and that mining is regulated by the state. She said the only other tool that could be used to grant
the request is a variance, but there is no hardship in this case to justify a variance. Hauth said reducing the
setback gives property owners more ability to use their lot. She said individual houses that would be impacted
likely are a dozen or fewer; a lot of the land in areas without water and sewer service are not developed; and
the town has almost no way to oversee property used for agricultural purposes in its extraterritorial
jurisdiction.
Motion: Hughes moved to approve ordinance change and consistency statement regarding setbacks.
Lloyd seconded.
Kimrey called the roll for voting.
Vote: 3-1. Ayes: Bell, Ferguson, and Lloyd. Nays: Hughes. English lost connection and was unable to
vote.
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The board discussed the request to allow an accessory dwelling unit on a private road. The planning director
said the applicant wants to build a garage with an apartment over it for a family member. She said the town
greatly expanded the ability to have accessory dwelling units but the requirement to be on a public road has
been in place for more than 30 years. Hauth said the Planning Board discussed whether a fixed distance could
be set from a private road to allow accessory dwellings. The distance needed to allow the unit at this
particular property is 300 feet, which would allow accessory dwellings on any private road in town. One of the
Planning Board members was opposed to allowing the unit on a private road.
Hauth answered questions from the board. She confirmed the private road is a gravel road. She said it is one
of the oldest private roads in town and probably one of the more well-constructed ones, noting that garbage
trucks do travel it. She said most of the new private roads built are to access deeper lots and most private
roads in town are very short. Hauth said the Planning Board discussed looking at the standard of a private
road and she was very hesitant to accept the option because town staff are not qualified to look at a road and
determine whether it’s built to a certain standard and because the maintenance and standard for private
roads is determined by the private owners. It was determined that a fair standard could not be implemented
and the only option before the Planning Board was to allow accessory dwellings on private roads or don’t.
In answering what the downside is to allowing accessory dwellings on private roads, Hauth said that not all
private roads have been built in the last five years and some may not be well maintained or have a
maintenance agreement among all the owners. She said the more people who live on a private road, the
more pressure there will be also for the town to accept a road that would be a challenge. Hauth said staff
have had conversations that private roads are a problem in the long run and perhaps they should not be
allowed in town.
The mayor noted that the town has already taken steps to make accessory dwelling units more accessible to
people and that both parts of this request seem to do that. In this case, the dwelling would make it possible
for an aging parent to live on site. For another person, renting out the unit could help produce funds to
maintain the road.
There was continued discussion about the assumption people have that private roads are public and subject
to the same services as public roads and about the treatment of this private road. Hauth said the long
tradition of garbage and recycling service on this road and the possibility of the road becoming public should
be discussed separately.
Motion: Bell moved to adopt the ordinance and consistency statement to allow accessory dwelling units
on private roads. Lloyd seconded.
Kimrey called the roll for voting.
Vote: 3-2. Ayes: Bell, English and Lloyd. Nays: Ferguson, Hughes.
B. Order closing unopened right of way named Cole Avenue
Motion: Hughes moved to close unopened right of way named Cole Avenue. Ferguson seconded.
Kimrey called the roll for voting.
Vote: 5-0. Ayes: Bell, English, Ferguson, Hughes and Lloyd. Nays: None.
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C. Consistency statement and ordinance amending Unified Development Ordinance to be consistent with North
Carolina General Statute 160D and assigned Special Use Permit review to the Board of Adjustment
The planning director noted this item was discussed in April, at which time the board asked staff to check that
the Board of Adjustment was comfortable with the new requirements. She said provisions that are more
policy-based in the review of special use permits were discussed ― affordable housing, green building, water
use and cultural resources. The Board of Adjustment members were willing to take those topics on when
there are specific policies or plans that they can rely on when making related determinations. She said the
draft language in this request does not include those topics but they could be addressed in the update to the
Comprehensive Sustainability Plan and then be added to the Unified Development Ordinance. She said much
of the changes are language and consistency changes, some clarification of administrative processes, and
changes for consistency in formatting. She noted Section 6.20 of draft will be amended due to a typo.
Town Attorney Bob Hornik said the most substantive change is moving special use permit review to the Board
of Adjustment to review. All other changes really are to make processes and references match the North
Carolina General Statute 160D, which is required by July 1.
The mayor asked for clarification on the four items the Board of Adjustment wanted clarification on and what
the impact would be in the interim while the town works on the Comprehensive Sustainability Plan. The
planning director said the requirements are to ask an applicant how much water they will use, ask what green
building standards will be used, have the applicant check whether any documented cultural resources are on
the site, and ask the applicant to talk to the board about affordable housing.
Hauth said to her recollection, there haven’t been any meaningful conditions placed on special use permits for
any of the topics except affordable housing. She said the town did require Forest Ridge and maybe Collins
Ridge to do some green building certificates within 30 days of their certificate of occupancy, but more of
those provisions and requirements are becoming part of the state building code. She said the big gap in the
interim would be with affordable housing as this board has requested affordable housing measures, such as
donation of land or payment in lieu. Those measures only are triggered in projects with more than 20
dwellings. In the interim, there would not be that mechanism to have a conversation with the board about
affordable housing.
Hauth said in discussions with the Planning Board it was noted another round of amendments would be
coming in October that would create some conditional zoning districts that address certain circumstances.
She said conditional zoning would come to the board and the board would have the opportunity to have
affordable housing discussions with applicants then. She noted that the town cannot automatically require
that a project with X number of dwellings fall under conditional zoning. She said the board could give staff
direction to find another mechanism to address affordable housing.
There was discussion about whether special use permits should go to the Board of Adjustment or the town
board. The planning director noted that it is not uncommon across the state for special use permits to go to
the Board of Adjustment or Planning Board for approval.
Bell reminded the board that Hughes had said in the initial discussion that the change in the special use
permit process would make the commissioners pay more attention to how they make appointments to the
Board of Adjustment. He suggested trying the proposed process for 6 months and then evaluating. He recalled
that Hauth had said all the large tracts in the town’s jurisdiction are built out.
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Hughes noted there is a benefit in having appointed board members make quasi-judicial decisions at each
meeting vs. mixing quasi-judicial and legislative decision-making as there is a possibility of melding the two in
their minds.
The planning director urged the board to adopt the proposed ordinance tonight to be compliant with state
law. She said she thinks staff can have a solution by the end of the calendar year for ensuring that affordable
housing gets discussed at the appropriate level. She said staff will propose some conditional zoning districts
that include very large-scale residential developments and mixed-use developments. This will allow for
affordable housing conversations as conditional zoning will always come to the town board because it’s a
legislative decision. She suggested the town also needs to think through the information it needs from
applicants to ask for less upfront but still make an informed decision.
Motion: Bell moved to amend consistency statement and ordinance. Hughes seconded.
Ferguson asked for clarification that the change in process could be revisited. The planning director suggested
adding a discussion to the board’s annual budgetary planning retreat.
Kimrey called the roll for voting.
Vote: 5-0. Ayes: Bell, English, Ferguson, Hughes and Lloyd. Nays: None.
D. Second workshop on the FY22 Budget
Budget Director Emily Bradford opened the work session and noted the abstract in the agenda packet
includes the items noted for further discussion following the June 7 budget work session. Discussion started
regarding a downtown parking study in which Hughes had suggested the town fund a larger portion of the
study. The draft budget proposed $18,000 as the town’s contribution and $16,000 each from the Tourism
Board and Tourism Development Authority. The planning director offered an alternative source of funds. She
said the town receives planning funds from the metropolitan planning organization and the parking study
would be an eligible expense. The town would have to pay 20% of the cost. She said use of the funds would
have no impact on traffic requests. She also said the town has about a $250,000 balance, so the project’s
scope could be increased. The $50,000 cost for the study is a plug figure, she said, adding that a $75,000
project would require $15,000 as the town’s share, which is less than the amount proposed in the draft
budget.
Board members were in agreement to pursue use of Metropolitan Planning Organization funds for the study.
Motion: Hughes moved to change the allocation of the parking study to 50% from the Planning
Department, 25% from the Tourism Development Authority and 25% from the Tourism Board.
English seconded.
Kimrey called the roll for voting.
Vote: 4-1. Ayes: Bell, English, Hughes and Lloyd. Nays: Ferguson.
The budget director confirmed that the parking study estimate would be changed to $75,000 and the cost
would be split.
The board discussed other items brought forth during the June 7 work session. It directed staff to:
• Increase cleaning of park restrooms to four times a week once daily pandemic cleanings end. Prior to
the pandemic, they were cleaned twice a week.
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• Add $3,000 for cellular phone data analysis software for the Police Department.
• Add $7,500 as an initial contribution from the town for a veterans memorial in Orange County.
• Fund community reinvestment requests from the Exchange Club and Hillsborough Arts Council at the
requested levels, $7,500 and $14,520 respectively.
• Keep the proposed 3.25% merit raise for employees and add a $1,000 cost-of-living adjustment for
the current fiscal year since no raises were given this fiscal year due to the pandemic.
The board also discussed compensation for police officers to keep the town competitive amid significant
increases to starting salaries in some area jurisdictions and a nationwide issue of early retirements, a shortage
of candidates and an inability to fill vacancies. Town Manager Eric Peterson suggested increasing market rate
adjustment funds to help cover potential adjustments for police officers and give time for staff to determine a
proposal. He plans to provide a proposed amount for the increase at the June 28 meeting.
The board also discussed the proposed property rates and fees. There was discussion on the need for funding
for sustainability actions to meet the town’s clean energy goals, for taking care of employees, and for
connectivity needs. The manager said he would bring some property tax rate options to the board’s next
meeting.
The utilities director said the Water and Sewer Advisory Committee’s work on examining rates regarding
affordability and the differential charged for out-of-town customers was paused due to the pandemic. The
town manager noted additional time also is needed to examine capital utility projects that need to be funded
but aren’t in the budget because budget adoption must occur this month.
The board directed staff to remove from the fee schedule the higher security deposit for water and sewer
customers considered high risk for nonpayment.
E. Hot topics for work session June 28, 2021
The board will further discuss the budget proposal and adopt a budget ordinance at the June 28 meeting.
The planning director said she does not know if she can have a request to rename the community center in
the Fairview neighborhood processed in time for the June 28 meeting. She said there is a process specified in
the Code of Ordinances regarding naming structures.
7. Updates
A. Board members
Board members gave updates on the committees and boards on which they serve.
B. Town manager
There was none.
C. Staff (written reports in agenda packet)
There was none.
8. Adjournment
Motion: Ferguson moved to adjourn at 10:01 p.m. Lloyd seconded.
Kimrey called the roll for voting.
Vote: 5-0. Ayes: Bell, English, Ferguson, Hughes and Lloyd. Nays: None.
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Respectfully submitted,
Sarah Kimrey
Interim Town Clerk
Staff support to the Board of Commissioners
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William Johnoson Presentation
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William Johnoson Presentation
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William Johnoson Presentation
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William Johnoson Presentation
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William Johnoson Presentation
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William Johnson presentation
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From:Town of Hillsborough
To:Jenn Weaver; Robb English; Evelyn Lloyd; Kathleen Ferguson; Mark Bell; Matt Hughes; Sarah Kimrey; Eric
Peterson; Margaret Hauth
Subject:Contact form message: DRaft FY22 budget comments
Date:Monday, June 14, 2021 12:24:43 PM
William Lang sent the message below via the Town of Hillsborough website “Contact
Mayor and Commissioners” form. To respond, reply to this email or contact
Wanted to send my comments on the draft FY22 town budget.
Great work by our town staff for making the documents easy to read and understand.
The mantra of “take care of what we have” is more important than ever which makes
moving out of the Eno flood plain to higher ground important.
Amazed and pleased that tax rate might be able to remain at current level given the
stressors of the past year and last year’s concerns regarding holding the status quo.
Fine with the increase in water and sewer as these are such important town services
that I know we pay a lot of attention to regarding quality quantity and infrastructure
maintenance.
Excited to see included the line item for Hillsborough University the catalyst for me
sharing my budget thoughts with you!
Thoughtful and thought provoking town budget that shows us in good stead which I
might say is supported by the future year budgeting (estimating) approach.
Meets my test of: Where do we want to go? How will we know when we get there?
and What will we measure along the way to make sure we are heading in the right
direction?
Thanks!
Will
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From:Eric Peterson
To: Jenn Weaver; Robb English; Evelyn Lloyd; Kathleen Ferguson; Mark Bell; Matt Hughes; Sarah
Kimrey; Margaret Hauth
Cc:Marie Strandwitz; Catherine Wright; Jen Della Valle; Emily Bradford
Subject:RE: Contact form message: Water/Sewer Rate Increase, 6D on Agenda for June 14
Date:Monday, June 14, 2021 3:40:22 PM
Dear Lavone Tucker,
Thank you for taking the time to share you concerns and frustrations regarding water and sewer
rates. You are correct that rates are unquestionably high for water and sewer service. You raise
some excellent questions and points. The town has a frequently asked questions (FAQ) page that
provides responses to some of the information you requested regarding minimum usage,
justifications for higher out-of-town rates, and others: https://www.hillsboroughnc.gov/faqs/faq-
water-and-sewer-rates/
Minimum Usage
Water & sewer utilities charge either using a base rate or volumetric approach. The base charge
approach means customers get charged a flat amount each month for those fixed costs that still
must be paid for even if the customer doesn’t use any water or sewer. This includes costs for making
the water and sewer service available, such as debt payments on the treatment plants or other
system improvements. The calculations are complex and beyond my ability to explain. Utility billing
consultants are usually brought in to calculate what those numbers should be. Thus, the customer is
charged the base rate plus the actual water/sewer they used. This is approach the City of Durham
uses. The volumetric approach is where a unit sets a minimum usage instead of a base rate plus any
usage beyond that amount. As you referenced, Hillsborough’s minimum is 2,500 gallons per month.
In North Carolina 54% of water systems use the same approach as Hillsborough, the other 46% use
Durham’s approach, so it’s split about evenly. Each approach has it’s pros and cons. Hillsborough’s
minimum usage was 3,000 per month. A four year process recommended by the Town’s Water &
Sewer Advisory Committee to lower it to 2,500 was completed in 2016. The most typical minimum
monthly usage amounts by utility systems are 2,000 and 3,000 per month, thus Hillsborough’s is in
the middle. There’s more detail at the town’s website at this link:
https://assets.hillsboroughnc.gov/media/documents/public/understanding-the-minimum-usage-
charge.pdf The town will likely re-evaluate this practice again at some point in the future as it comes
up for discussion and evaluation periodically. If a change occurred, it could be to either lower the
minimum further as you suggested or to change to a base rate approach. Either way, it would
require direction from the town board to re-evaluate the billing structure and hiring a consultant to
generate these options.
Higher Out-of-Town Rates
As with many utility billing practices they can vary widely from jurisdiction to jurisdiction. Charging
higher rates to out-of-town customers is a common practice across the country and North Carolina.
Although, there are many places that don’t charge a different rate amount. Many others charge
multipliers that are less or more than the double or 200% rate that’s common. For example, the City
of Durham charges double or 200%. Some places charge as high as triple or 300%. Hillsborough’s
multiplier is slightly less than Durham at 195%, but the overall charges are higher due to our rates. In
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North Carolina about 62% of water systems charge higher rates for out-of-town customers. The
following link goes into more detail about this topic, such as rationales that have been cited in
various places for charging higher out-of-town rates:
https://assets.hillsboroughnc.gov/media/documents/public/understanding-in-town-and-out-of-
town-rates.pdf
One option to address this would be to see if your condominium development is interested in
requesting annexation into the town limits. When this happens it’s a trade off of having water and
sewer costs reduced almost in half compared to the additional costs of paying property taxes for
town services like parks, streets, possibly solid waste collection if the streets are public, stormwater,
and having the fire tax removed which saves the homeowners additional money. Some
neighborhoods find after doing the calculations that it’s a savings to be annexed. Others find it’s less
expensive to continue paying the higher rates and avoid paying taxes. Town staff can assist
neighborhoods that are interested in annexation.
Water & Sewer Advisory Committee (WSAC)
The WSAC is a group of volunteer advisory board members that is composed of both out-of-town
and in-town members. They provide policy guidance on various aspects of operating the town’s
system, often making recommendations to the town board on rate, budget, operating, and other
aspects of running the system. They meet periodically and welcome inquiries and participation from
customers. The following link provides more information about this committee and how to get on
one of their agendas: https://www.hillsboroughnc.gov/government/appointed-boards/water-and-
sewer-advisory-committee/ Due to COVID they’ve been meeting remotely since last March, so
hopefully with things appearing to get better they may start meeting in person again later this
summer, which may be more convenient that interacting on Zoom. I’ve copied the Town’s Utilities
Director Marie Strandwitz in case you want to get on one of their future agendas.
Thank you again for taking the time to share thoughtful questions that touch on important concerns.
I’m sure the town board will consider your comments as they regularly re-evaluate the impacts of
rate structures and practices on customers.
Sincerely,
Eric
Eric Peterson
Eric Peterson (he,him,his)
Town Manager
Town of Hillsborough
P O Box 429
June 14, 2021
Board of Commissioners Regular Meeting
Amended: ____________________
Page 17 of 40
DRAFT
101 E. Orange Street
Hillsborough, NC 27278
( 919-296-9421
7 919-732-3921
E-Mail: eric.peterson@hillsboroughnc.gov
Web: www.hillsboroughnc.gov
**In accordance with the North Carolina general statutes, chapter 132, this email address is subject to North Carolina public records law. As such,
please note that all inbound and outbound messages are subject to requests for review and may be disclosed to third parties.
From: Town of Hillsborough <no-reply@hillsboroughmail.org>
Sent: Sunday, June 13, 2021 10:07 PM
To: Jenn Weaver <Jenn.Weaver@hillsboroughnc.gov>; Robb English
<Robb.English@hillsboroughnc.gov>; Evelyn Lloyd <Evelyn.Lloyd@hillsboroughnc.gov>; Kathleen
Ferguson <Kathleen.Ferguson@hillsboroughnc.gov>; Mark Bell <Mark.Bell@hillsboroughnc.gov>;
Matt Hughes <matt.hughes@hillsboroughnc.gov>; Sarah Kimrey
<Sarah.Kimrey@hillsboroughnc.gov>; Eric Peterson <Eric.Peterson@hillsboroughnc.gov>; Margaret
Hauth <Margaret.Hauth@hillsboroughnc.gov>
Subject: Contact form message: Water/Sewer Rate Increase, 6D on Agenda for June 14
Lavone Tucker sent the message below via the Town of Hillsborough website
“Contact Mayor and Commissioners” form. To respond, reply to this email or contact
I currently live in a condo on Orange Grove Rd, outside the city limits. I moved here in
August 2019 and coming from Durham, I was shocked at the rates for water/sewer.
What is particularly troublesome to me is how the Town can set a "minimum" water
usage which results in some homes paying for gallons of water that are NOT used
(and the sewage rate for those unused gallons). I have never heard of a utility
charging customers for services that are, in fact, not provided. While some type of
"minimum charge" would be acceptable to most, it should be far below 2,500 gal/mo.
My usage varies from 1400 - 1800 gal/mo. To be "equitable", my suggestion is to
charge per gallon (with a reasonable minimum) so that every household pays only for
the gallons they use.
Charging residents outside the City Limits double what residents pay in town is not
equitable. I have heard the argument that in-town residents pay higher property taxes
than those of us that live outside city limits. Yet, when one looks at the use of funds,
no tax dollars are used for Water/Sewer costs, so this argument holds no water (pun
intended). I would love a logical explanation for this discrimination.
June 14, 2021
Board of Commissioners Regular Meeting
Amended: ____________________
Page 18 of 40
DRAFT
From:Emily Bradford
To:Sarah Kimrey
Cc:Eric Peterson
Subject:FW: Contact form message: Nash St. bench
Date:Friday, June 11, 2021 11:25:18 AM
From: Town of Hillsborough <no-reply@hillsboroughmail.org>
Sent: Friday, June 11, 2021 10:03 AM
To: Emily Bradford <Emily.Bradford@hillsboroughnc.gov>
Subject: Contact form message: Nash St. bench
Michelle Jenkins sent the message below via the Town of Hillsborough website
“Contact Budget Office” form. To respond, reply to this email or contact
Re: Nash St. bench
Hello. Has area/location been narrowed down yet for bench placement? Purpose of
bench?
Consider midpoint of Nash or further south.
Addition of the bench can be beneficial certainly.
Expect placement will be useful, and also encourage moving along instead of
loitering. From my experience with the bus stop bench installed near my residence, I
have witnessed the benefit for bus patrons, but also loitering and litter. For example,
individuals who come with blaring music to sit and just disrupt. Also, for idle
gatherings. Hopefully, this bench will involve less of the latter.
Please consider placement near midpoint of Nash, @ Alma, Hayes, or closer to S.
Nash. Thank you.
June 14, 2021
Board of Commissioners Regular Meeting
Amended: ____________________
Page 19 of 40
DRAFT
BUDGET CHANGES REPORT
TOWN OF HILLSBOROUGH
FY 2020-2021
DATES: 06/14/2021 TO 06/14/2021
REFERENCE NUMBER DATE BUDGET CHANGE BUDGET
ORIGINAL BUDGET AMENDEDCHANGE
USER
74-00-3200-3800-350 MISCELLANEOUS
06/14/2021 0.00 689.00Adj to actual 20909 689.00EBRADFORD
74-00-3900-3900-000 FUND BALANCE APPROPRIATED
06/14/2021 49,646.00 5,311.00To cover potential yr-end overages 20910 60,107.00EBRADFORD
74-51-6250-5300-997 6% HOLDBACK
06/14/2021 18,000.00 6,000.00To cover potential yr-end overages 20911 24,000.00EBRADFORD
12,000.00
EBRADFORD 2:09:02PM06/07/2021
fl142r03
Page 1 of 1
APPROVED: 5/0
DATE: 6/14/21
VERIFIED: ___________________________________
June 14, 2021
Board of Commissioners Regular Meeting
Amended: ____________________
Page 20 of 40
DRAFT
BUDGET CHANGES REPORT
TOWN OF HILLSBOROUGH
FY 2020-2021
DATES: 06/14/2021 TO 06/14/2021
REFERENCE NUMBER DATE BUDGET CHANGE BUDGET
ORIGINAL BUDGET AMENDEDCHANGE
USER
10-00-3800-3800-350 MISCELLANEOUS
06/14/2021 20,000.00 10,000.00King St. Sidewalk Project 20847 39,219.00EBRADFORD
10-00-3900-3900-000 FUND BALANCE APPROPRIATION
06/14/2021 551,313.00 6,000.00To cover rental generator 20913 1,085,809.89EBRADFORD
10-10-4200-5300-080 TRAINING/CONF./CONV.
06/14/2021 28,645.00 -775.00To cover translation services 20845 26,313.00EBRADFORD
10-10-4200-5300-320 SUPPLIES - OFFICE
06/14/2021 2,200.00 100.00To cover yr-end overages 20835 1,900.00EBRADFORD
10-10-4200-5300-454 C.S.-CATV/ASCAP-BMI/COD/TRANS/PAY S
06/14/2021 61,332.00 -100.00To cover yr-end overages 20836 61,232.00EBRADFORD
10-10-4200-5300-570 MISCELLANEOUS
06/14/2021 9,053.00 775.00To cover translation services 20846 8,622.00EBRADFORD
10-10-4400-5300-338 SUPPLIES - DATA PROCESSING
06/14/2021 1,200.00 -100.00To cover Debt Book 20915 1,100.00EBRADFORD
10-10-4400-5300-458 DATA PROCESSING SERVICES
06/14/2021 6,948.00 100.00To cover Debt Book 20914 18,559.00EBRADFORD
10-10-4900-5300-120 ADVERTISING
06/14/2021 1,500.00 500.00To cover yr-end overages 0 6,035.00EBRADFORD
06/14/2021 1,500.00 1,000.00To cover yr-end overages 20843 7,035.00EBRADFORD
10-10-4900-5300-570 MISCELLANEOUS
06/14/2021 2,500.00 -500.00To cover yr-end overages 0 41,616.00EBRADFORD
06/14/2021 2,500.00 -1,000.00To cover yr-end overages 20844 40,616.00EBRADFORD
10-20-5100-5300-458 DATA PROCESSING SERVICES
06/14/2021 13,983.00 1,300.00To cover simulator maint/support 20832 15,283.00EBRADFORD
10-20-5110-5300-330 SUPPLIES - DEPARTMENTAL
06/14/2021 15,500.00 3,000.00To cover ammunition 20829 42,729.16EBRADFORD
10-20-5110-5300-350 UNIFORMS
06/14/2021 9,360.00 -3,000.00To cover ammunition 20830 14,360.00EBRADFORD
10-20-5110-5700-741 CAPITAL - EQUIPMENT
06/14/2021 0.00 -1,300.00To cover simulator maint/support 20831 68,250.00EBRADFORD
10-30-5550-5300-351 RENTAL - EQUIPMENT
06/14/2021 0.00 6,000.00To cover rental generator 20912 6,000.00EBRADFORD
10-30-5600-5300-130 UTILITIES
06/14/2021 125,000.00 -9,000.00To cover garbage truck tax/tags 20825 128,855.17EBRADFORD
10-30-5600-5300-165 MAINTENANCE - INFRASTRUCTURE
06/14/2021 0.00 10,000.00King St. Sidewalk Project 20848 13,500.00EBRADFORD
10-30-5800-5700-740 CAPITAL - VEHICLES
06/14/2021 310,000.00 9,000.00To cover garbage truck tax/tags 20826 306,388.00EBRADFORD
30-80-7200-5300-571 SAFETY AWARDS PROGRAM
06/14/2021 0.00 250.00To cover cost of safety awards program 20850 4,303.00JDELLAVALL
30-80-7200-5300-580 CUSTOMER SERVICE & INNOVATION AWARD
06/14/2021 4,000.00 -250.00To cover cost of safety awards program 20849 3,750.00JDELLAVALL
30-80-7200-5350-610 SERVICE CHARGE - GOVERNING BODY
EBRADFORD 7:29:37PM06/09/2021
fl142r03
Page 1 of 4
GF-
Revenue
GF-
Revenue
Admin.
Admin.
Admin.
Admin.
Accounting
Accounting
Planning
Planning
Police-
Admin
Police-
Patrol
Police-
Patrol
Police-
Patrol
Fleet
Maint.
Streets
Streets
Solid
Waste
Admin. of
Enterprise
Admin. of
Enterprise
Admin. of
Enterprise
June 14, 2021
Board of Commissioners Regular Meeting
Amended: ____________________
Page 21 of 40
DRAFT
BUDGET CHANGES REPORT
TOWN OF HILLSBOROUGH
FY 2020-2021
DATES: 06/14/2021 TO 06/14/2021
REFERENCE NUMBER DATE BUDGET CHANGE BUDGET
ORIGINAL BUDGET AMENDEDCHANGE
USER
06/14/2021 138,952.00 -2,000.00To cover year-end overages 20851 136,952.00JDELLAVALL
30-80-7200-5350-611 SERVICE CHARGE - ADMINISTRATION
06/14/2021 794,099.00 -11,000.00To cover year-end overages 20855 783,099.00JDELLAVALL
30-80-7200-5350-612 SERVICE CHARGE - ACCOUNTING
06/14/2021 271,260.00 -4,000.00To cover year-end overages 20853 267,260.00JDELLAVALL
30-80-7200-5350-613 SERVICE CHARGE - FLEET MAINTENANCE
06/14/2021 205,609.00 2,000.00To cover year-end overages 20852 207,609.00JDELLAVALL
30-80-7200-5350-615 SERVICE CHARGE - SAFETY & RISK MGMT
06/14/2021 93,090.00 4,000.00To cover year-end overages 20854 97,090.00JDELLAVALL
30-80-7200-5350-616 SERVICE CHARGE-INFORMATION SERVICES
06/14/2021 271,256.00 11,000.00To cover year-end overages 20856 282,256.00JDELLAVALL
30-80-7220-5100-010 OVERTIME
06/14/2021 1,500.00 3,000.00To cover year-end overages 20858 4,500.00JDELLAVALL
30-80-7220-5100-020 SALARIES
06/14/2021 305,578.00 -3,000.00To cover year-end overages 20857 302,578.00JDELLAVALL
30-80-7220-5300-455 C.S./ENGINEERING
06/14/2021 127,500.00 -5,000.00To cover GIS work 20828 167,500.00EBRADFORD
06/14/2021 127,500.00 -3,371.00To cover year-end overages 20859 164,129.00JDELLAVALL
30-80-7220-5300-493 C.S./GIS
06/14/2021 15,000.00 5,000.00To cover GIS work 20827 26,858.75EBRADFORD
30-80-7220-5300-581 RECOGNITION PAY
06/14/2021 0.00 3,371.00To cover year-end overages 20860 3,371.00JDELLAVALL
30-80-7240-5100-010 OVERTIME COMPENSATION
06/14/2021 2,000.00 2,600.00To cover year-end overages 20862 4,600.00JDELLAVALL
30-80-7240-5125-060 HOSPITALIZATION
06/14/2021 63,414.00 -2,600.00To cover year-end overages 20861 60,814.00JDELLAVALL
30-80-7240-5125-061 LIFE/DISABILITY/VISION
06/14/2021 1,396.00 25.00To cover year-end overages 20864 1,421.00JDELLAVALL
30-80-7240-5127-070 RETIREMENT
06/14/2021 21,923.00 -25.00To cover year-end overages 20863 21,898.00JDELLAVALL
30-80-8120-5100-020 SALARIES
06/14/2021 398,633.00 22,000.00To cover year-end overages 20881 420,633.00JDELLAVALL
30-80-8120-5120-050 FICA
06/14/2021 32,408.00 3,500.00To cover year-end overages 20882 35,908.00JDELLAVALL
30-80-8120-5125-060 HOSPITALIZATION
06/14/2021 77,179.00 10.00To cover year-end overages 20866 77,189.00JDELLAVALL
30-80-8120-5127-070 RETIREMENT
06/14/2021 43,211.00 -10.00To cover year-end overages 20865 43,201.00JDELLAVALL
30-80-8120-5127-071 401(K) RETIREMENT SUPP.
06/14/2021 21,182.00 260.00To cover year-end overages 20868 21,442.00JDELLAVALL
30-80-8120-5300-130 UTILITIES
06/14/2021 82,500.00 -260.00To cover year-end overages 20867 74,433.00JDELLAVALL
30-80-8120-5300-570 MISCELLANEOUS
EBRADFORD 7:29:37PM06/09/2021
fl142r03
Page 2 of 4
Admin. of
Enterprise
Admin. of
Enterprise
Admin. of
Enerprise
Admin. of
Enterprise
Admin. of
Enterprise
Utilities
Admin.
Utilities
Admin.
Utilities
Admin.
Utilities
Admin.
Utilities
Admin.
Billing &
Collection
Billing &
Collection
Billing &
Collection
Billing &
Collection
WTP
WTP
WTP
WTP
WTP
WTP
WTP
June 14, 2021
Board of Commissioners Regular Meeting
Amended: ____________________
Page 22 of 40
DRAFT
BUDGET CHANGES REPORT
TOWN OF HILLSBOROUGH
FY 2020-2021
DATES: 06/14/2021 TO 06/14/2021
REFERENCE NUMBER DATE BUDGET CHANGE BUDGET
ORIGINAL BUDGET AMENDEDCHANGE
USER
06/14/2021 1,200.00 -400.00To cover translation of water quality repor 20916 1,800.00JDELLAVALL
30-80-8120-5300-572 CONSUMER CONFIDENCE REPORT
06/14/2021 600.00 400.00To cover translation of water quality repor 20917 1,000.00JDELLAVALL
30-80-8140-5100-020 SALARIES
06/14/2021 314,813.00 53,000.00To cover year-end overages 20883 367,813.00JDELLAVALL
30-80-8140-5120-050 FICA
06/14/2021 25,039.00 3,000.00To cover year-end overages 20884 28,039.00JDELLAVALL
30-80-8140-5125-060 HOSPITALIZATION
06/14/2021 67,963.00 12,000.00To cover year-end overages 20885 79,963.00JDELLAVALL
30-80-8140-5125-061 LIFE/DISABILITY/VISION
06/14/2021 2,162.00 500.00To cover year-end overages 20886 2,662.00JDELLAVALL
30-80-8140-5125-062 DENTAL INSURANCE
06/14/2021 2,244.00 550.00To cover year-end overages 20887 2,794.00JDELLAVALL
30-80-8140-5127-070 RETIREMENT
06/14/2021 33,386.00 4,500.00To cover year-end overages 20888 37,886.00JDELLAVALL
30-80-8140-5127-071 401(K) RETIREMENT SUPP.
06/14/2021 16,366.00 3,500.00To cover year-end overages 20870 19,866.00JDELLAVALL
30-80-8140-5300-130 UTILITIES
06/14/2021 42,268.00 1,800.00To cover year-end overages 20871 44,068.00JDELLAVALL
30-80-8140-5300-310 GASOLINE
06/14/2021 23,345.00 -5,300.00To cover year-end overages 20869 15,045.00JDELLAVALL
30-80-8140-5300-330 SUPPLIES - DEPARTMENTAL
06/14/2021 100,000.00 -2,400.00To cover year-end overages 20872 95,173.00JDELLAVALL
30-80-8140-5300-336 NON-CAPITAL OUTLAY
06/14/2021 0.00 2,400.00To cover year-end overages 20873 2,400.00JDELLAVALL
30-80-8200-5100-020 SALARIES
06/14/2021 314,813.00 25,000.00To cover year-end overages 20889 339,813.00JDELLAVALL
30-80-8200-5120-050 FICA
06/14/2021 25,039.00 1,400.00To cover year-end overages 20890 26,439.00JDELLAVALL
30-80-8200-5125-060 HOSPITALIZATION
06/14/2021 67,963.00 8,500.00To cover year-end overages 20891 76,463.00JDELLAVALL
30-80-8200-5125-061 LIFE/DISABILITY/VISION
06/14/2021 2,162.00 200.00To cover year-end overages 20892 2,362.00JDELLAVALL
30-80-8200-5125-062 DENTAL INSURANCE
06/14/2021 2,244.00 300.00To cover year-end overages 20893 2,544.00JDELLAVALL
30-80-8200-5127-070 RETIREMENT
06/14/2021 33,386.00 1,800.00To cover year-end overages 20894 35,186.00JDELLAVALL
30-80-8200-5127-071 401(K) RETIREMENT SUPP.
06/14/2021 16,366.00 2,300.00To cover year-end overages 20875 18,666.00JDELLAVALL
30-80-8200-5300-110 TELEPHONE/INTERNET
06/14/2021 5,904.00 500.00To cover year-end overages 20877 6,557.00JDELLAVALL
30-80-8200-5300-130 UTILITIES
06/14/2021 53,573.00 -2,300.00To cover year-end overages 20874 51,273.00JDELLAVALL
EBRADFORD 7:29:37PM06/09/2021
fl142r03
Page 3 of 4
WTP
Water
Distribution
Water
Distribution
Water
Distribution
Water
Distribution
Water
Distribution
Water
Distribution
Water
Distribution
Water
Distribution
Water
Distribution
Water
Distribution
Water
Distribution
WW
Collection
WW
Collection
WW
Collection
WW
Collection
WW
Collection
WW
Collection
WW
Collection
WW
Collection
WW
Collection
June 14, 2021
Board of Commissioners Regular Meeting
Amended: ____________________
Page 23 of 40
DRAFT
BUDGET CHANGES REPORT
TOWN OF HILLSBOROUGH
FY 2020-2021
DATES: 06/14/2021 TO 06/14/2021
REFERENCE NUMBER DATE BUDGET CHANGE BUDGET
ORIGINAL BUDGET AMENDEDCHANGE
USER
30-80-8200-5300-310 GASOLINE
06/14/2021 16,723.00 -500.00To cover year-end overages 20876 19,223.00JDELLAVALL
30-80-8220-5127-071 401(K) RETIREMENT SUPP.
06/14/2021 18,186.00 600.00To cover year-end overages 20879 18,786.00JDELLAVALL
30-80-8220-5300-130 UTILITIES
06/14/2021 159,370.00 -600.00To cover year-end overages 20878 158,770.00JDELLAVALL
30-80-8220-5300-331 SUPPLIES - SAFETY
06/14/2021 1,950.00 2,820.00To cover fall protection device replacemen 20833 4,770.00EBRADFORD
30-80-8220-5300-473 MAINTENANCE CONTRACTS
06/14/2021 77,710.00 -2,820.00To cover fall protection device replacemen 20834 74,890.00EBRADFORD
30-80-9990-5300-000 CONTINGENCY
06/14/2021 300,000.00 -136,250.00To cover year-end overages 20880 44,688.00JDELLAVALL
32,000.00
EBRADFORD 7:29:37PM06/09/2021
fl142r03
Page 4 of 4
WW
Collection
WWTP
WWTP
WWTP
WWTP
WSF-
Contingency
APPROVED: 5/0
DATE: 6/14/21
VERIFIED: ___________________________________
June 14, 2021
Board of Commissioners Regular Meeting
Amended: ____________________
Page 24 of 40
DRAFT
BUDGET CHANGES REPORT
TOWN OF HILLSBOROUGH
FY 2020-2021
DATES: 06/15/2021 TO 06/15/2021
REFERENCE NUMBER DATE BUDGET CHANGE BUDGET
ORIGINAL BUDGET AMENDEDCHANGE
USER
10-00-3900-3900-000 FUND BALANCE APPROPRIATION
06/15/2021 551,313.00 5,700.00To cover generator repair & rental 20920 1,091,509.89EBRADFORD
10-30-5550-5300-158 MAINTENANCE - EQUIPMENT
06/15/2021 2,500.00 5,000.00To cover generator repair 20919 7,500.00EBRADFORD
10-30-5550-5300-351 RENTAL - EQUIPMENT
06/15/2021 0.00 700.00To cover generator rental 20918 6,700.00EBRADFORD
30-80-8220-5300-158 MAINTENANCE - EQUIPMENT
06/15/2021 65,710.00 10,500.00To cover aeration blower replacement 20931 129,528.00JDELLAVALL
30-80-8220-5300-473 MAINTENANCE CONTRACTS
06/15/2021 77,710.00 -10,500.00To cover aeration blower replacement 20930 64,390.00JDELLAVALL
11,400.00
JDELLAVALLE 12:13:46PM06/14/2021
fl142r03
Page 1 of 1
GF -
Revenue
Fleet
Maint.
Fleet
Maint.
WWTP
WWTP
APPROVED: 5/0
DATE: 6/14/21
VERIFIED: ___________________________________
June 14, 2021
Board of Commissioners Regular Meeting
Amended: ____________________
Page 25 of 40
DRAFT
Ordinance #20210614-5.D
June 14, 2021
Board of Commissioners Regular Meeting
Amended: ____________________
Page 26 of 40
DRAFT
Proclamation #20210614-5.E
June 14, 2021
Board of Commissioners Regular Meeting
Amended: ____________________
Page 27 of 40
DRAFT
Proclamation #20210614-5.E
June 14, 2021
Board of Commissioners Regular Meeting
Amended: ____________________
Page 28 of 40
DRAFT
Town Board’s Statement per N.C. Gen. Stat. 160A-383
The Town of Hills borough Town Board has received and reviewed the application of
planning staff to amend the Town of Hillsborough Unified Development Ordinance as follows
(insert general description of proposed amendment):
Sections 7.5 – limiting the requirement to combine nonconforming lots
The Hillsborough Town Board has determined that the proposed action is consistent with the
Town of Hillsborough’s comprehensive plan, and the Town Board’s proposed action on the
amendment is reasonable and in the public interest for the following reason(s):
This amendment supports the town’s on-going smart growth principles of encouraging more
development with the urban core and available to existing infrastructure, as well as supporting
affordable housing efforts.
Adopted by the Town of Hillsborough Board of Commissioners this 14th day of June, 2021.
______________________________
Sarah E. Kimrey, Interim Town Clerk
June 14, 2021
Board of Commissioners Regular Meeting
Amended: ____________________
Page 29 of 40
DRAFT
AN ORDINANCE AMENDING THE UNIFIED DEVELOPMENT ORDINANCE
OF THE TOWN OF HILLSBOROUGH
THE BOARD OF COMMISSIONERS OF THE TOWN OF HILLSBOROUGH ORDAINS:
Section 1. The Unified Development Ordinance Section 7.5, Nonconforming Lots, is hereby amended
to replace section 7.5.1 and 7.5.2 as follows:
7.5.1 COMBINATION OF CONTIGUOUS NONCONFORMING LOTS IN SINGLE OWNERSHIP
Undeveloped nonconforming lots shall be combined to create less nonconforming lots
when all of the following apply:
a) the lots are held in single ownership at the time of permit application
b) the lots have continuous street frontage
c) one or more of the lots is less than 40 feet wide, when measured at the front
setback line
d) the lots are lots of record as defined by this ordinance, were created by a public
taking action, or were created as a result of a court order.
If the resultant lot is still nonconforming, it may be developed subject to Section 7.5.3,
Nonconforming Lot Setback Requirements, as if the lot was created prior to February 17,
1986.
7.5.2 USE OF NONCONFORMING LOTS
7.5.2.1 Any single nonconforming lot of record may be developed, used, and occupied for the
purposes defined by its zoning classification if combination with adjoining lots is not
required under 7.5.1, Combination of Contiguous Nonconforming Lots in Single
Ownership.
7.5.2.2 The setbacks for these lots shall be defined in Section 7.5.3, Nonconforming Lot Setback
Requirements, as if the lot was created prior to February 17, 1986.
Section 2. All provisions of any town ordinance in conflict with this ordinance are repealed.
Section 3. This ordinance shall become effective upon adoption.
The foregoing ordinance having been submitted to a vote, received the following vote and was
duly adopted this 14th day of June, 2021.
Ayes: 5
Noes: 0
Absent: 0
Sarah E. Kimrey, Interim Town Clerk
June 14, 2021
Board of Commissioners Regular Meeting
Amended: ____________________
Page 30 of 40
DRAFT
Town Board’s Statement per N.C. Gen. Stat. 160A-383
The Town of Hills borough Town Board has received and reviewed the application of
planning staff to amend the Town of Hillsborough Unified Development Ordinance as follows
(insert general description of proposed amendment):
Sections 5.1.6 and 5.1.7 – permitted use tables
The Hillsborough Town Board has determined that the proposed action is consistent with the
Town of Hillsborough’s comprehensive plan, and the Town Board’s proposed action on the
amendment is reasonable and in the public interest for the following reason(s):
This amendment brings the ordinance into compliance with NCGS 160D requirements to no
longer have conditional use permits. Other modernization amendments to processes and where
uses are allowed were also included.
Adopted by the Town of Hillsborough Board of Commissioners this 14th day of June, 2021.
_____________ _________
Sarah E. Kimrey, Interim Town Clerk
June 14, 2021
Board of Commissioners Regular Meeting
Amended: ____________________
Page 31 of 40
DRAFT
AN ORDINANCE AMENDING THE UNIFIED DEVELOPMENT ORDINANCE
OF THE TOWN OF HILLSBOROUGH
THE BOARD OF COMMISSIONERS OF THE TOWN OF HILLSBOROUGH ORDAINS:
Section 1. The Unified Development Ordinance Section 5.1.6, Use Table for Residential districts and
5.1.7., Use Table for Non-residential districts are hereby replaced wits the attached tables.
Section 2. Amend Section 9.2, definitions, to modify the definition for Building/Trade Contractor’s
Office to read as follows:
An establishment that serves as the base of operations for building contractors, plumbers,
electricians, mechanical systems technicians, and the like. This use also includes other
service type businesses dispatching to a work site including but not limited to
exterminators, carpet cleaners, or mobile vehicle service with no on-site garage. This use
may include office, on-site and off-site repair, and sale of related supplies and equipment.
Outside storage of supplies, equipment, or vehicles that meet the definition of storage
rather than parking is only permitted if the outdoor storage meets the requirements in
Section 5.2 45.
Section 3. All provisions of any town ordinance in conflict with this ordinance are repealed.
Section 4. This ordinance shall become effective upon adoption.
The foregoing ordinance having been submitted to a vote, received the following vote and was
duly adopted this 14th day of June, 2021.
Ayes: 5
Noes:
Absent or Excused:
Sarah E. Kimrey, Interim Town Clerk
5
0
0
June 14, 2021
Board of Commissioners Regular Meeting
Amended: ____________________
Page 32 of 40
DRAFT
June 14, 2021
Board of Commissioners Regular Meeting
Amended: ____________________
Page 33 of 40
DRAFT
June 14, 2021
Board of Commissioners Regular Meeting
Amended: ____________________
Page 34 of 40
DRAFT
Town Board’s Statement per N.C. Gen. Stat. 160A-383
The Town of Hills borough Town Board has received and reviewed the application of
Samantha Johnson to amend the Town of Hillsborough Unified Development Ordinance as
follows (insert general description of proposed amendment):
Section 6.3.1 – to reduce setbacks in the Agricultural residential district
The Hillsborough Town Board has determined that the proposed action is consistent with the
Town of Hillsborough’s comprehensive plan, and the Town Board’s proposed action on the
amendment is reasonable and in the public interest for the following reason(s):
The requested amendments do not conflict with town goals and allow more dense development
within the area served with public water and sewer.
Adopted by the Town of Hillsborough Board of Commissioners this 14th day of June, 2021.
______________________________
Sarah E. Kimrey, Interim Town Clerk
June 14, 2021
Board of Commissioners Regular Meeting
Amended: ____________________
Page 35 of 40
DRAFT
AN ORDINANCE AMENDING THE UNIFIED DEVELOPMENT ORDINANCE
OF THE TOWN OF HILLSBOROUGH
THE BOARD OF COMMISSIONERS OF THE TOWN OF HILLSBOROUGH ORDAINS:
Section 1. The Unified Development Ordinance Section 6.3.1, Dimensional Requirements –
Residential, is amended to establish side setbacks of thirty feet, rear setback of thirty feet,
and front setback of forty feet for the Agricultural Residential District.
Section 2. All provisions of any town ordinance in conflict with this ordinance are repealed.
Section 3. This ordinance shall become effective upon adoption.
The foregoing ordinance having been submitted to a vote, received the following vote and was
duly adopted this 14th day of June, 2021.
Ayes: 3
Noes: 1
Absent or Excused: 0
Sarah E. Kimrey, Interim Town Clerk
June 14, 2021
Board of Commissioners Regular Meeting
Amended: ____________________
Page 36 of 40
DRAFT
Town Board’s Statement per N.C. Gen. Stat. 160A-383
The Town of Hills borough Town Board has received and reviewed the application of
Samantha Johnson to amend the Town of Hillsborough Unified Development Ordinance as
follows (insert general description of proposed amendment):
Section 5.2.9.2 – allow accessory dwellings on private roads
The Hillsborough Town Board has determined that the proposed action is consistent with the
Town of Hillsborough’s comprehensive plan, and the Town Board’s proposed action on the
amendment is reasonable and in the public interest for the following reason(s):
The requested amendments do not conflict with town goals and allow more dense development
within the area served with public water and sewer.
Adopted by the Town of Hillsborough Board of Commissioners this 14th day of June, 2021.
______________________________
Sarah E. Kimrey, Interim Town Clerk
June 14, 2021
Board of Commissioners Regular Meeting
Amended: ____________________
Page 37 of 40
DRAFT
AN ORDINANCE AMENDING THE UNIFIED DEVELOPMENT ORDINANCE
OF THE TOWN OF HILLSBOROUGH
THE BOARD OF COMMISSIONERS OF THE TOWN OF HILLSBOROUGH ORDAINS:
Section 1. The Unified Development Ordinance Section 5.2.9.2, Accessory dwelling within a principal
single-family dwelling, is hereby amended to deleted provision “b” which requires the lot
to have direct access to a public road. The section is renumbered to accommodate this
deletion.
Section 2. All provisions of any town ordinance in conflict with this ordinance are repealed.
Section 3. This ordinance shall become effective upon adoption.
The foregoing ordinance having been submitted to a vote, received the following vote and was
duly adopted this 14th day of June, 2021.
Ayes: 3
Noes: 2
Absent or Excused: 0
Sarah E. Kimrey, Interim Town Clerk
June 14, 2021
Board of Commissioners Regular Meeting
Amended: ____________________
Page 38 of 40
DRAFT
Town Board’s Statement per N.C. Gen. Stat. 160A-383
The Town of Hills borough Town Board has received and reviewed the application of
planning staff to amend the Town of Hillsborough Unified Development Ordinance as follows
(insert general description of proposed amendment):
Entire ordinance rewrite to comply with North Carolina General Statutes 160D
The Hillsborough Town Board has determined that the proposed action is consistent with the
Town of Hillsborough’s comprehensive plan, and the Town Board’s proposed action on the
amendment is reasonable and in the public interest for the following reason(s):
This amendment brings the ordinance into compliance with NCGS 160D requirements
Adopted by the Town of Hillsborough Board of Commissioners this 14th day of June, 2021.
_____________ _________
Sarah E. Kimrey, Interim Town Clerk
June 14, 2021
Board of Commissioners Regular Meeting
Amended: ____________________
Page 39 of 40
DRAFT
AN ORDINANCE REPEALING THE TOWN OF HILLSBOROUGH 2011 UNIFIED DEVELOPMENT
ORDINANCE (as amended) AND ADOPTING A UNIFIED DEVELOPMENT ORDINANCE
CONSISTENT WITH NCGS 106-D.
THE BOARD OF COMMISSIONERS OF THE TOWN OF HILLSBOROUGH ORDAINS:
Section 1. The Unified Development Ordinance, originally adopted February 28, 2011 and
subsequently amended, is hereby repealed.
Section 2. The attached Unified Development Ordinance consisting of 9 sections, is hereby
adopted to be consistent with new planning legislation in North Carolina General
Statutes 160D.
Section 4. All provisions of any town ordinance in conflict with this ordinance are repealed.
Section 5. This ordinance shall become effective upon adoption.
The foregoing ordinance having been submitted to a vote, received the following vote
and was duly adopted this 14th day of June, 2021.
Ayes: 5
Noes: 0
Absent or Excused: 0
_____________________________
Sarah E. Kimrey, Interim Town Clerk
June 14, 2021
Board of Commissioners Regular Meeting
Amended: ____________________
Page 40 of 40
DRAFT
AGENDA ABSTRACT | 1 of 2
Agenda Abstract
BOARD OF COMMISSIONERS
Meeting date: Aug. 23, 2021
Department: Administration/HR
Public hearing: No
Date of public hearing: N/A
PRESENTER/INFORMATION CONTACT
Haley Bizzell, Interim Human Resources Director
ITEM TO BE CONSIDERED
Subject: Classification and pay amendment – reclassify the chief water plant operator position to plant
maintenance mechanic I and title change for one water plant operator III to operator in responsible charge
Attachments:
1. Current chief water plant operator position classification
2. Proposed plant maintenance mechanic I position classification
3. Proposed position classification for Operator in Responsible Charge
Brief summary:
The Water Treatment Plant has been operating without a chief operator since February 2021. The plant has
continued to operate efficiently without someone in this position. As note, the former chief operator served as the
Operator in Responsible Charge (ORC), a state mandated designation. When the chief operator position became
vacant, Alton (Sam) Dunevant, a current Water Operator III, became the ORC and has carried forth these duties in
an excellent manner and with a temporary pay increase to handle the extra duties.
Utilities staff has identified a greater need for a plant maintenance mechanic to help with repairs and other
maintenance around the aging Water Treatment Plant rather than a chief operator. Reclassifying the chief
operator position, grade 9 (salary range $46,110-$73,775), to a plant maintenance mechanic I position, grade 4
(salary range $36,128-$57,805) will not have a significant financial impact. Changing Alton (Sam) Dunevant’s
position title from an operator III to Operator in Responsible Charge will change the position from grade 6 (salary
range $39,831-$63,730) to grade 7 (salary range $41,823-$66,916). The salary savings of reclassifying the chief
operator position to grade 4, will allow the one water plant operator III position to be reclassified to Operator in
Responsible Charge at grade 7.
Action requested:
Approve reclassification of the chief operator to plant maintenance mechanic I. Approve change in position/title
and salary grade for Alton (Sam) Dunevant to Operator in Responsible Charge from operator III.
ISSUE OVERVIEW
Background information and issue summary:
Please see above.
Financial impacts:
For clerk’s use
AGENDA ITEM:
3.C
Consent
agenda
Regular
agenda
Closed
session
AGENDA ABSTRACT | 2 of 2
This reclassification will not have a significant financial impact. There will be a small savings in salary with this
reclassification from chief operator to a maintenance mechanic and Mr. Dunevant has received the increased
salary since February 2021.
Staff recommendation and comments:
Approve classification and pay amendments as presented.
Chief Water
Plant
Operator
Class Code:
0909
TOWN OF HILLSBOROUGH
Revision Date: Jan 22, 2021
SALARY RANGE
$46,110.00 - $73,775.00 Annually
GENERAL STATEMENT OF JOB:
The purpose of this classification is to oversee the daily operations of the Town’s 3 MGD river
water plant, conduct quality control checks of operations by running tests, maintain equipment
and the building, and supervise other water plant operators and laboratory supervisor. This
position answers to the Water Treatment Plant Superintendent.
SPECIFIC DUTIES AND RESPONSIBILITIES:
ESSENTIAL FUNCTIONS The following duties are representative of this position. The omission of specific statements
of the duties does not exclude them from the classification if the work is similar, related, or a
logical assignment for this classification. Other duties may be required and assigned. Prepares and/or processes various records and reports including daily log sheets, on-
call sheet, water bath temperature log, incubator temperature log, pH standardization
log, and autoclave worksheet; performs electronic reporting.
Receives and/or reviews various records and reports including daily log sheets, raw
and filter turbidity, maintenance records, and vehicle maintenance.
May serve as Operator in Responsible Charge (ORC), in which case, prepare and
maintain Standard Operating Procedures for the plant and perform required duties per
state regulations.
Recognizes and makes changes to equipment and treatment processes, checks,
controls, and monitors plant equipment.
Collects and analyzes water samples in the plant and distribution system to monitor
water quality.
Receives, unloads, and stores chemical shipments.
Performs basic water plant maintenance and housekeeping; washes basins when
needed; fills chemical storage tanks; backwashes filters; changes cylinders, manages
alum ponds.
Maintains inventory and assists with monitoring the budget and spending.
Establishes relationships and contacts with product, chemical and maintenance
vendors who can assist when needed.
Dispatches line crews for leaks and locations.
Supervises division operators and lab supervisor which involves such duties as
instructing, assigning and reviewing work, maintaining standards, protocols and
regulatory compliance, acting on employee problems, assisting with the selection of
new employees, assisting with the appraisal of employee performance, providing input
on promotions, discipline, termination and salary increases, processes timesheets,
motivating and leading by example.
Interacts and communicates with various groups and individuals, internal and external;
responds to customer complaints.
Covers emergencies and staff shortages in accordance with town policy.
Fills in for the water plant superintendent or other operators when needed.
Performs other related work as required.
MINIMUM TRAINING AND EXPERIENCE:
Education and Experience:
Requires a High School Diploma and/or GED (Associate's Degree preferred) and 3
years of experience; or any equivalent combination of training and experience, which
provides the required knowledge, skills, and abilities.
Licensure, Certification, and Specialized Training:
NC Driver's License
NC Grade A Surface Water Treatment System Operator certification
NC Class 2 Maintenance Technologist certification preferred
NC Bacteriological Methods certification preferred
Working Conditions and Physical Requirements:
Must be physically able to operate a variety of equipment.
Must be able to exert up to 110 pounds of force occasionally and/or up to 20 pounds of
force frequently or constantly to lift, carry, push, pull or otherwise move objects.
Must be able to lift and/or carry weights of 10 to 200 pounds.
Must be able to walk, stand, bend, reach, climb and stoop.
If ORC, meet the distance and time stipulations for the designation.
Must be willing to work in office, within water plant and outdoors in varying climates.
May be exposed to machinery with moving parts, hazardous and irritating chemicals,
wet and dirty environments and enclosed spaces. Personal protective devices are
required.
PERFORMANCE INDICATORS:
Knowledge:
Methods, procedures and policies of the town, including town code, employee
handbook, policy and procedure manuals, contracts, publications and reference texts,
etc.
Federal, state, and local laws and policies concerning water and sewer systems
including NC General Statutes, NC Administrative Code, OSHA regulations, NC
Department of Environmental Quality rules & regulations, and other codes, laws, and
regulations.
Operating principles and practices, and maintenance requirements of water systems,
plant equipment and machinery utilized in water supply and treatment operations;
principles of plumbing and hydraulics as related to water systems.
Engineering, chemical, and bacteriological processes and practices related to water
supply and treatment operations for a water plant with a river intake.
Occupational hazards and safety precautions of utilities work.
Mechanical maintenance and lubrication requirements of the equipment operated.
Standard laboratory principles, techniques, terminology, and equipment.
Administrative principles involved in developing, directing and supervising various
programs and related activities.
Principles and practices of supervision, organization, and public administration.
Functions and interrelationships of town and other governmental agencies.
Responsibilities of individuals directly supervised to ensure accurate and efficient
completion of assignments.
Skills: Strong organizational, management, human relations, interpersonal and technical
skills.
Strong written, computer and oral communication skills.
Mathematical ability to handle required calculations.
Supervisory experience.
Use and maintain a variety of office equipment including calculator, computer, printer,
shredder, copier, scanner, fax machine, telephone, and any other equipment as
necessary to complete essential functions.
Use and maintain a variety of equipment including power tools, mechanic tools,
carpentry tools, spectrophotometer, PH probes, pumps/meters, mixer, autoclave,
distiller, voltmeter, pallet jack, motor lift, and other hand/electrical/pneumatic tools.
Use a variety of word processing, spreadsheet, database, or other system software,
such as Microsoft Office, online monitoring systems, internet search engines, etc.
Abilities:
Plan and develop daily, short- and long-term goals; handle multiple assignments
simultaneously.
Produce quality work, which requires constant attention to detail.
Analyze and recognize problems and potential problems with the plant or its personnel
and recommend and/or implement appropriate solutions.
Read, interpret, and apply policies, procedure, rules, regulations and other complex
materials.
Ensure compliance with all laws and regulations and control activities through effective
supervision.
Develop and administer plans and activities as required to maintain safe and effective
operations.
Assemble and analyze information and make written reports and documents in a clear,
concise, and effective manner.
Make repairs of equipment operated to ensure accuracy and redundancy.
Determine or interpret work procedures for subordinates in assigning duties to them,
maintaining harmonious relations among them, and promoting efficiency; offer
instruction and advice regarding departmental policies, methods and regulations;
perform employee evaluations and to make recommendations based on results.
Establish and maintain effective working relationships, and effectively and timely
communicate with other employees, elected officials, town management, advisory
boards, business owners, and vendors; provide assistance and advice to various
agencies, departments, and individuals.
Work with the public in a professional manner and provide information and assistance,
representing the town government in a positive light at all times.
Perform required duties and responsibilities in extreme weather conditions.
Perform duties and complete responsibilities under a degree of stress related to
meeting tight deadlines; react calmly and quickly in emergencies.
Use independent judgment and discretion in working with, or supervising various
programs including the handling of emergency situations, determining procedures,
setting priorities, setting schedules, maintaining standards, planning for future needs
and resolving problems.
Make swift, sound, and educated decisions.
Maintain poise and reason in times of emergency or duress.
OTHER REQUIREMENTS:
Safety sensitive: This position is considered to be safety-sensitive and is subject to random drug testing. FLSA: This position is non-exempt under the Fair Labor Standards Act.
DISCLAIMER: This job description is not an employment agreement or contract.
Management has the exclusive right to alter this job description at any time without notice.
Plant Mechanic I
CLASS CODE:
Revision Date: August 23, 2021
SALARY RANGE
$36,128.00 - $57,805.00 Annually
GENERAL STATEMENT OF JOB:
The purpose of this classification is to perform semi-skilled to skilled work in the maintenance and repair of specialized
machinery and equipment in a water or wastewater treatment plant. Employees in this classification repair pumps and
machinery; repair pneumatic equipment; recommend needed repairs; weld and fabricate parts; make electrical and plumbing
repairs; and inspect safety equipment.
SPECIFIC DUTIES AND RESPONSIBILITIES:
ESSENTIAL FUNCTIONS
The following duties are representative of this position. The omission of specific statements of the duties does
not exclude them from the classification if the work is similar, related, or a logical assignment for this classification.
Other duties may be required and assigned.
• Installs and repairs mechanical, hydraulic, and pneumatic equipment; makes minor repairs to
electrical/electronic equipment; recommends needed major repairs to supervisor; makes plumbing
repairs.
• Performs and tracks preventative maintenance on plant equipment; ensures all plant equipment are
in proper working order.
• Inspects and ensures proper working safety equipment before use.
• Operates a welder, drills, press drill, cutting torch, hand tools, electrical multimeter,
mechanics’ tools, pickaxe, shovel, carpenters’ tools, crane, or other equipment as
necessary to complete essential functions.
• Serves on call, always, for emergencies.
• May assist other maintenance technicians in their duties during staff shortages or
emergencies.
• Performs other related duties as required.
MINIMUM TRAINING AND EXPERIENCE:
Education and Experience:
• High school diploma or GED. Must possess, or have the ability to possess within 1 year, a North Carolina Class I
Maintenance Technologist Certification.
Licensure, Certification, and Specialized Training:
• NC Driver's License
Working Conditions and Physical Requirements:
• Physically able to perform semi-skilled to skilled work in the maintenance and repair of specialized machinery and
equipment in a water treatment plant and in other Town facilities.
• Exert up to 150 pounds of force occasionally, and/or up to 75 pounds of force frequently, and/or 25 pounds of force
constantly to move objects.
• Climb, reach, crawl, bend, stoop, etc. in the performance of job duties. Physical demand requirements are those for
Medium Work to Heavy Work.
• Occasional exposure to adverse environmental conditions, including temperature extremes,
wetness/humidity, rain, machinery hazards, uneven terrain, skin irritants, toxic agents, dirt, dust,
pollen, odors, electrical currents, unusual noise levels, etc.
PERFORMANCE INDICATORS:
Knowledge, Skills and Abilities to possess:
• Methods, policies, and procedures of the Department as they pertain to the performance of duties of the Plant
Mechanic.
• Laws, ordinances, standards and regulations pertaining to the specific duties and responsibilities of the position
(federal, state and local).
• Methods, materials and equipment associated with maintenance work and used in a water or wastewater treatment
plant and in other Town facilities.
• Occupational hazards and safety precautions of the trade.
• Comprehensive knowledge of the mechanical and grounds terminology utilized within the Department.
• Ensuring safe and effective use of equipment and tools.
• Mathematical ability to handle required calculations.
• Read and interpret equipment manuals and technical materials pertaining to the responsibilities of the job.
• Prepare simple records and reports in a timely manner.
• Utilize common sense understanding and independent judgment in non-routine situations.
• Is capable of and has knowledge of the levels of productivity and quality to be produced on the job and can meet
such criteria accordingly.
• Perform work effectively despite working conditions.
• Quality of Work: Maintains high standards of accuracy in exercising duties and responsibilities. Exercises
immediate remedial action to correct any quality deficiencies that occur in areas of responsibility. Maintains high
quality communication and interaction with all Town departments and divisions, supervisor, co-workers, and the
public.
• Quantity of Work: Performs described "Specific Duties and Responsibilities" and related assignments efficiently
and effectively to produce quantity of work which consistently meets standards and expectations of the Town.
• Dependability: Assumes responsibility for completing assigned work. Completes assigned work within deadlines
in accordance with directives, Town policy, standards and prescribed procedures. Remains accountable to
assigned responsibilities in the technical, human and conceptual areas.
• Attendance: Attends and remains at work regularly and adheres to Town policies and procedures regarding
absences and tardiness. Provides adequate notice to higher management with respect to vacation time and time-
off requests.
• Initiative and Enthusiasm: Maintains an enthusiastic, self-reliant, and self-starting approach to meet job
responsibilities and accountabilities. Strives to anticipate work to be done and initiates proper and acceptable
direction for the completion of work with a minimum of supervision and instruction.
• Judgment: Exercises analytical judgment in areas of responsibility. Identifies problems or situations as they occur
and specifies decision objectives. Identifies or assists in identifying alternative solutions to problems or situations.
Implements decisions in accordance with prescribed and effective policies and procedures and with a minimum of
errors. Seeks expert or experienced advice where appropriate and researches problems, situations and
alternatives before exercising judgment.
• Cooperation: Accepts supervisory instruction and direction and strives to meet the goals and objectives of same.
Questions such instruction and direction when clarification of results or consequences are justified, i.e., poor
communications, variance with Town policy or procedures, etc. Offers suggestions and recommendations to
encourage and improve cooperation between all staff persons and departments within the Town.
• Relationships with Others: Shares knowledge with supervisors and staff for mutual benefit. Contributes to
maintaining high morale among employees. Develops and maintains cooperative and courteous relationships inter-
and intra-departmentally, and with external entities with whom the position interacts. Tactfully and effectively
handles requests, suggestions and complaints in order to establish and maintain good will. Emphasizes the
importance of maintaining a positive image.
• Coordination of Work: Plans and organizes daily work routine. Establishes priorities for the completion of work in
accordance with sound time-management methodology. Avoids duplication of effort. Estimates expected time of
completion of elements of work and establishes a personal schedule accordingly. Attends required meetings,
planning sessions and discussions on time. Implements work activity in accordance with priorities and estimated
schedules.
• Safety and Housekeeping: Adheres to all safety and housekeeping standards established by the Town and
various regulatory agencies. Sees that the standards are not violated. Maintains a clean and orderly workplace.
• Interpersonal Communication and Temperament: Speaking and/or signaling people to convey or exchange
information. Includes receiving instructions, assignments, and/or directions from supervisor. Deal with people
beyond giving and receiving instructions. Must be adaptable to performing under occasional levels of stress. Speak
to people with poise, voice control, and confidence.
• Verbal Aptitude: Requires the ability to record and deliver information, to explain procedures, to follow oral and
written instructions. Must be able to communicate effectively and efficiently in standard English and electrical,
mechanical, and engineering terminology.
• Numerical Aptitude: Requires the ability to utilize mathematical formulas; to add and subtract; multiply and divide;
and utilize decimals and percentages.
• Form/Spatial Aptitude: Requires the ability to inspect items for proper length, width, and shape.
• Use and maintain a variety of office equipment including calculator, computer, printer, shredder, copier, scanner, fax
machine, telephone, and any other equipment as necessary to complete essential functions.
• Use and maintain a variety of equipment including drills, press drill, cutting torch, jack hammer, hand tools, amperage
probe, mechanics' tools, pickaxe, shovel, carpenters' tools, crane, or other equipment as necessary to complete
essential functions.
• Use a variety of word processing, spreadsheet, database, or other system software, such as Microsoft Office, asset
management software, internet search engines, etc.
• Data Conception: Compare and/or judge the readily observable, functional, structural, or compositional
characteristics (whether similar or divergent from obvious standards) of data, people or things.
• Language Ability: Read a variety of work orders, diagrams, records, etc. Requires the ability to prepare work
orders, records, and reports using prescribed formats and conforming to all rules of punctuation, grammar, diction,
and style.
• Intelligence: Apply rational systems to solve practical problems and deal with a variety of concrete variables in
situations where only limited standardization exists; to interpret a variety of instructions furnished in written, oral,
diagrammatic, or schedule form.
• Motor Coordination: Coordinate hands and eyes rapidly and accurately in using power and hand tools.
• Manual Dexterity: Handle a variety of items such as power and hand tools. Must have good eye/hand/foot
coordination.
• Color Discrimination and Visual Acuity: Differentiate colors and shades of color; requires the visual acuity to
determine depth perception, peripheral vision, inspection for small parts; preparing and analyzing written or
computer data, etc.
OTHER REQUIREMENTS:
Safety sensitive:
This position is safety-sensitive and is subject to random drug testing.
FLSA:
This position is non-exempt under the Fair Labor Standards Act.
DISCLAIMER: This job description is not an employment agreement or contract. Management has the exclusive right to alter
this job description at any time without notice
Close this window
Water Plant
Operator in
Responsible
Charge
Class Code:
0612
TOWN OF HILLSBOROUGH
Revision Date: August 23, 2021
SALARY RANGE
$39,831.00 - $63,730.00 Annually
GENERAL STATEMENT OF JOB:
The purpose of this classification is to conduct the daily operations and maintenance of the
town's water treatment plant in compliance with regulatory requirements, maintain the water
quality and pressure for the system, and provide clean water to the customers. This position
serves as the state mandated Operator in Responsible Charge (ORC) and reports directly to
the Water Plant Superintendent.
SPECIFIC DUTIES AND RESPONSIBILITIES:
ESSENTIAL FUNCTIONS
The following duties are representative of this position. The omission of specific statements of
the duties does not exclude them from the classification if the work is similar, related, or a
logical assignment for this classification. Other duties may be required and assigned.
• Starts up and shuts down the water treatment plant.
• Operates and monitors the functioning of pumps, motors, valves, chemical feeders, and
related equipment; recognizes and makes needed adjustments to equipment and or
treatment process.
• Performs basic water plant maintenance and housekeeping; backwashes filters; fills
chemical tanks and changes cylinders; drains and cleans sedimentation basins,
troughs and flocculation basins; performs maintenance on chemical pumps, motors and
piping; performs building and grounds maintenance.
• Performs skilled preventive maintenance and/or adjustments on equipment, including
repacking pumps, greasing pumps, adjusting pumps, overhauling and changing oil in
pumps and chemical feeders; performs maintenance and repairs on the plumbing and
piping system; maintains and repairs the chemical feed piping system; fills chemical
tanks; performs minor maintenance and repair on plant facilities.
• Collects and maintains accurate data; prepares and submits a variety of records,
reports, charts, logs, etc.
• Gathers samples for lab analysis; performs laboratory quality control testing, such as
chlorine residual, Ph, temperature, hardness, turbidity, dissolved oxygen, alkalinity,
fluoride, and other tests; performs water quality lab media in lab for use on water
microbiological bacteria testing of samples; performs bench jar testing of raw water to
optimize the plant's chemical dosage.
• Adds chemicals in accordance with prescribed standards; receives and properly stores
chemical shipments.
• Deals with irate customers for water bills, water cut-offs, and broken lines; handles after
hours complaints on nights, weekends, and holidays; dispatches proper personnel for
line breaks, sewer spills, and pump stations; calls and records all water/sewer service
calls and investigates customer’s water quality issues.
• Conducts tours of the plant.
• Maintains plant security on assigned shifts.
• Serves as the Operator in Responsible Charge (ORC) and performs duties required of
such designation.
• Performs other related duties as required.
MINIMUM TRAINING AND EXPERIENCE:
Education and Experience:
• Requires a High School Diploma and/or GED and 2.5 years of experience; or any
equivalent combination of training and experience, which provides the required
knowledge, skills, and abilities.
Licensure, Certification, and Specialized Training:
• NC Grade A Surface Water Treatment Operator certification
• NC Bacteriological Methods certification, preferred
Working Conditions and Physical Requirements:
• Must be physically able to operate a variety of equipment.
• Must be able to exert up to 100 pounds of force occasionally and/or in excess of fifty
pounds of force frequently, and/or in excess of 20 pounds of force constantly to lift,
carry, push, pull or otherwise move objects. Must be able to lift and/or carry weights of
up to 100 pounds.
• Must be able to walk, stand, bend, reach, climb and stoop.
PERFORMANCE INDICATORS:
Knowledge:
• Methods, procedures and policies of the town, including town code, employee
handbook, policy and procedure manuals, contracts, publications and reference texts,
etc.
• Methods, materials, tools and equipment used in drainage construction and
maintenance work.
• Federal, state, and local laws and policies concerning water systems and Operator in
Responsible Charge duties, including NC General Statutes, NC Administrative Code,
OSHA regulations, NC Department of Environmental Quality rules & regulations,
Environmental Protection Agency, and other codes, laws, and regulations.
• Operating principles, techniques, terminology and practices, and maintenance
requirements of water systems, plant equipment and machinery utilized in water supply
and treatment operations; principles of plumbing and hydraulics as related to water
systems.
• Chemical, and bacteriological laboratory analysis theories, processes and practices
related to water supply and treatment operations.
• Occupational hazards and safety precautions of water plant operations.
Skills:
• Strong leadership, organizational, interpersonal and technical skills.
• Strong written and oral communication skills.
• Mathematical ability to handle required calculations.
• Use and maintain a variety of office equipment including calculator, computer, printer,
shredder, copier, scanner, fax machine, telephone, and any other equipment as
necessary to complete essential functions.
• Use and maintain a variety of equipment including power tools, mechanic and/or
carpentry tools, spectrophotometer, PH probes, incubator, pumps/meters, mixer,
autoclave, distiller, voltmeter, pallet jack, motor lift, and other hand/electrical/pneumatic
tools.
• Use a variety of word processing, spreadsheet, database, or other system software,
such as Microsoft Office suite, Mission Communications, internet search engines, etc.
Abilities:
• Plan and develop daily, short- and long-term goals; handle multiple assignments
simultaneously.
• Produce quality work, which requires constant attention to detail.
• Prepare and submit state required operating reports in an accurate manner and on
time.
• Read, interpret, and apply policies, procedure, rules, regulations and other complex
materials.
• Work in a safe manner, following prescribed instruction.
• Assemble and analyze information and make written reports and documents in a clear,
concise, and effective manner.
• Make necessary repairs of equipment operated.
• Establish and maintain effective working relationships, and effectively communicate
with other employees, elected officials, town management, advisory boards, business
owners, and vendors; provide assistance and advice to various agencies, departments,
and individuals.
• Work with the public in a professional manner and provide information and assistance,
representing the town government in a positive light at all times.
• Perform required duties and responsibilities work in extreme weather conditions
including smoke, dust, heat, cold, wetness, etc.
• Perform duties and complete responsibilities under a degree of stress related to
meeting tight deadlines; react calmly and quickly in emergencies.
• Use independent judgment and discretion in working in performing routine tasks,
maintaining standards, and resolving problems.
OTHER REQUIREMENTS:
Safety sensitive:
This position is considered to be safety-sensitive and is subject to random drug testing.
FLSA:
This position is non-exempt under the Fair Labor Standards Act.
DISCLAIMER: This job description is not an employment agreement or contract. Management
has the exclusive right to alter this job description at any time without notice.
AGENDA ABSTRACT | 1 of 2
Agenda Abstract
BOARD OF COMMISSIONERS
Meeting date: Aug. 23, 2021
Department: Utilities/Planning
Public hearing: No
Date of public hearing: N/A
PRESENTER/INFORMATION CONTACT
Marie Strandwitz, Utilities Director/Margaret Hauth, Planning Director
ITEM TO BE CONSIDERED
Subject: Collection System Needs – update and recommended path forward to accommodating growth and
needed sewer capacity and its impact on planning
Attachments:
1. Presentation
2. Phase 2 Model Report
3. Larger Map of Slide 17
Brief summary:
An update of the Phase 2 Collection System Modeling report will be presented by utilities along with the planning
department discussing impacts to growth decisions. A recommended path forward is included along with future
questions to consider as the town moves through preparing guidance on growth, capacity, and financial support.
Action requested:
Adopt motion on recommended path forward (Slide 22)
ISSUE OVERVIEW
Background information and issue summary:
The collection system has been modeled hydraulically over two phased tasks. The first task, called Phase 1, took
current and anticipated growth and applied a static scenario using historical peak flow measurements at the
wastewater treatment plant. The second task, called Phase 2, utilized actual flow measurements in the sewer pipes
which captured various rainfall events. Then slightly revised growth projections were applied with a simulated
rainfall period to evaluate the future impacts to the pipe capacity in accommodating the anticipated growth
through 2040. Phase 1 report findings were presented to the board at the end of March 2021. The Phase 2 report
findings will be presented at this workshop. The Phase 2 results confirm that significant improvements to the
sewer pipes need to be performed under the 2040 (or sooner) scenario. Wet weather (leaking sewers) is a problem
in the River pumping station sewer basin (the largest and oldest basin). Planned growth is a driver for
improvements in the newer Elizabeth Brady pumping station sewer basin.
These improvements will take time, money and are a guiding factor in future growth decisions for the town.
Planning will discuss the impacts the report findings have on their efforts with the sustainability and growth plans.
Both departments need some immediate direction as meetings regarding development plans and inquiries are
occurring every day. There will need to be more refining of growth, capacity, and financial decisions in coming
months.
For clerk’s use
AGENDA ITEM:
4.A
Consent
agenda
Regular
agenda
Closed
session
AGENDA ABSTRACT | 2 of 2
Financial impacts:
A motion on direction tonight does not commit any finances. However, the overall level of improvements required
to accommodate growth will have significant financial impact. Future evaluation and discussion of the impact and
funding mechanisms will need to occur.
Staff recommendation and comments:
Provide direction to utilities and planning on how to respond to developer inquiries now while other finer details
and decisions are discussed later.
8/17/21
1
Collection System Needs
Update and Recommended Path Forward
to Accommodating Growth and Needed Sewer Capacity and
its Impact to Planning
Board of Commissioners
August 23, 2020 Workshop
K. Marie Strandwitz, PE, Utilities Director
Margaret A. Hauth, Planning Director
1
Wastewater Stats
§3.0 million gallon per day (mgd) wastewater treatment plant
§Built in the early 1970’s, upgraded in 2012-2016
§May be nutrient limited to 2.2 mgd
§Rolling average is 1.11 mgd
§Initial sewer pipes installed prior to wastewater plant –went to river!
§Pipes are vitrified clay, plastic, iron and some strange and outdated materials
§Pipes range from 4” –24”
§Main interceptors installed with wastewater treatment plant
§Some spot evaluation and rehabilitation through lining over years, no upsizing
2
8/17/21
2
Last 12 Months WWTP Average Daily Flow
4.5 in of rain
WWTP Permit Capacity 3.0 MGD (nutrient limit 2.2 MGD)
3
Sewer Basin Map
The red line on the map reflects the Urban
Services Boundary.
The green line indicates the approximate division
between the River pump station basin and the
Elizabeth Brady Road pump station basin. Every
project to the left of the line goes to River basin.
Everything to the right goes to Elizabeth Brady
basin (where we have sewer).
4
8/17/21
3
Modeling Lesson Recap
§The wastewater entering the treatment plant
consists of:
§BASE FLOW –Actual sewage
§INFLOW –Not sewage
§INFILTRATION –Groundwater –not sewage
§Inflow and infiltration is called I&I, or I/I
§Difference between base flow and peak flow
during storms can be I&I
§I&I is bad, but it is everywhere
§I&I is as much on the private side as the public
side
§PHASE 1 model was an estimate based on
expected base flow and measured peak flow at
the WWTP during a rainfall event and applied
to estimated growth
§PHASE 2 model went further to measure flow in
pipes and development of a design storm
applied to growth to determine problems and
necessary pipe sizes to alleviate –we call this
calibrated.
§Modeling shows us within a certain accuracy
how something acts now and will behave in
the future under various scenarios.
5
Report and Planning Terminology
§Committed means capacity is formally reserved through an executed
extension contract, a building permit or state permit
§Potential means in-town parcel, properly zoned, or had board action
on a Special Use Permit or Master Plan (possibly even outdated)
§Preliminary Inquiries means utilities or planning has received an
inquiry about potential utility accessibility and development on a
parcel
§Could be in-town, out-of-town, or even out of Urban Service Boundary
6
8/17/21
4
Growth in Model
The report does not include potential flow from the influx of Accessory Dwelling Units
(ADUs), in-town redevelopment with higher density, all preliminary inquiries and new single-
family residences (SFRs) that have been approved
7
Phase 1 Modeling Conclusions
§Problems with main interceptor in River basin surcharging during
significant rain events –right now
§Surcharging means water getting above pipe diameter into manholes –filling
up!
§Necessary upsizing of Elizabeth Brady pumping station possibly by
2025
§Estimated cost (without River pumping station upgrade) is $18M
§River pumping station upgrade from separate evaluation is $7M
§Did not include actual I/I in flow estimate
8
8/17/21
5
Phase 2 Modeling Conclusions
§Significantly more improvements needed in order to achieve the level
of service criteria identified through 2040
§I&I is a problem in the River basin (pipes and pumps)
§Lawndale basin is especially leaky
§Proposed development is driving needed improvements for the
Elizabeth Brady basin
§Increased flows without improvements will increase the risk of
sanitary sewer overflows in the Town
9
Phase 2 Improvements
–River Basin and Others
DIXIELAWNDALERIVER
ELIZABETH BRADY
2040 planning horizon
10
8/17/21
6
Phase 2 Improvements –
Elizabeth Brady Basin
2040 planning horizon
11
Opinion of Probable Cost
*
* Adds 15% to basin totals for mobilization and other general conditions
12
8/17/21
7
Report Prioritization of Recommendations
§High Priority Improvements -NOW
§River pumping station, Exchange Park Lane gravity sewers and River interceptor from Exchange Club to new River pumping station –rough estimate of $12M
§Lawndale I/I study and rehabilitation –estimated $500K
§Note that River PS land acquisition and design are budgeted, have some rehab budget for Lawndale, no funding for pipe upsizing or other I&I reduction
§Medium Priority Improvements
§Elizabeth Brady pumping station upgrade, remaining River basin gravity sewer improvements
§Lower Priority Improvements
§River basin pumping station and force main improvements after further evaluation, Elizabeth Brady gravity sewer monitoring and improvements if needed
13
This Means
§There is no more capacity in the River basin due to I&I
§The system is leaky (older part of town)
§Can monitor growth in Elizabeth Brady basin, but will need to plan
upgrades at some point
§Scope and fee of actual improvements is unknown
§Funding sources and rate impacts unknown
§There are other capital projects to address
§Little time to plan, permit, design and construct improvements
§Possible interim solutions to explore for River basin
14
8/17/21
8
Committed
Projects for Model (2020)
§Some flow has come online since model data
collected
§Highlighted projects will or do discharge to River
basin
15
Potential Projects for Model (2020)
§Highlighted discharge to River basin
§Some moved to committed table
16
8/17/21
9
Map of Expected Growth
17
This Impacts Planning
§The availability of utilities and capacity drives growth. Most development
inquiries start in the Planning Department and focus on utility availability.
§The Future Land Use Plan is viewed as a decision-making guide internally, but as a
commitment and promise by developers.
§The Comprehensive Sustainability Plan will recommend changes in development
patterns and attach priority or preference to certain locations. Our system cannot
accommodate either.
§The town has been welcoming development to share utility capital cost with
more customers. That message is changing now that we understand the
wastewater constraints in the collection system.
18
8/17/21
10
The Comprehensive Sustainability Plan
is Underway
§Redevelopment in the core is sustainable in the long run but requires
constant investment in infrastructure.
§Continued low density single family detached development is not
sustainable and will require even more infrastructure investment in
the long run.
§Choices about future infrastructure investments will control the
town’s future.
19
We Need a Message
§Planning and Utilities need direction on responding to inquiries and
developing options to move forward. Options:
§Bring every serious inquiry before BOC on a case-by-case basis?
§The traditional method which seems inefficient and ineffective
§Identify priority projects or areas?
§Ideally, yes. Better crafted as part of the Comprehensive Sustainability Plan
§Formally pause on growth in River basin until improvements are made?
§While the committed flow is not yet realized, we clearly risk sewer overflows during wet
weather
§Formal moratoria have consequences and designated processes
§Development and redevelopment is on-going in the River basin. Can that be
accommodated?
20
8/17/21
11
Future Questions (Not for Tonight)
We realize this is a lot to process and may generate more questions like these:
§Where is the balance of adding new users and
accommodating growth to investing in
infrastructure upgrades?
§How much growth will we accommodate? What
type?
§What are our limits (no plant upgrades, limits of
road infrastructure, keep within service
boundary, adhere to planning documents)?
§Will we make upgrades to address all potential
projects through 2040 or only address those
that are committed?
§What is our timing? Do we pause?
§Do we further investigate and reduce sources of
I/I throughout the system in hopes we can
avoid/reduce upgrades?
§How do we keep rates stable?
§How can growth pay for growth?
§How much water and sewer capacity do we
reserve as a buffer? To have water available to
help our neighboring utilities in emergency
situations (mutual aid)?
§How do we allocate capacity and what are the
reservation guidelines?
21
Recommended Path Forward for Tonight
§Evaluate funding for River pumping
station and interceptor evaluation and
design
§Perform pilot program in Lawndale
basin and explore other interim
projects to free capacity in River basin
§Authorize utilities to indicate there is
no current sewer capacity in River basin
and explore options for future capacity
allocation and funding
§Includes potential cost share
§Confirm the existing Urban Services
Boundary will not be expanded
§Confirm lack of support for satellite
annexations
§Prepare to identify priority
development areas and discuss future
questions soon
§Will tie into planning documents and
capital improvement plan
22
8/17/21
12
THANK YOU
QUESTIONS AND DISCUSSION
23
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Collection System Model – Wet Weather Calibration - Phase 2 Report
Town of Hillsborough, NC
Phase 2 Report
May 2021
Prepared for
Town of Hillsborough, NC
P.O. Box 429
105 E. Corbin St
Hillsborough, NC 27278-04229
Prepared by
Merrick & Company
301 S McDowell St Suite 300,
Charlotte, NC 28204
And
Barton & Loguidice, DPC
116 Defense Highway, Suite 309
Annapolis, Maryland 21401
Page Intentionally Left Blank
Town of Hillsborough, NC Phase 2 Report
«ProjectNumber»/06.2021 - i - Barton & Loguidice, DPC
Merrick & Company
Table of Contents
Table of Contents ............................................................................................................................... i
EXECUTIVE SUMMARY ...................................................................................................................... 3
1.0 Introduction ......................................................................................................................... 6
2.0 Model Update ....................................................................................................................... 6
3.0 Sanitary Loading and Dry weather Flows ............................................................................... 6
4.0 Wet Weather Calibration ...................................................................................................... 6
4.1. Rainfall Event Selection....................................................................................................... 6
4.2. Rainfall Simulation and Hydrology ...................................................................................... 7
4.3. Calibration Results Summary .............................................................................................. 7
5.0 Design Rainfall Event............................................................................................................ 10
6.0 Future Development Flow Projections .................................................................................. 11
7.0 Proposed Improvements ...................................................................................................... 11
7.1. Improvements for 2040 Committed Flows ....................................................................... 12
7.2. Improvements for 2040 Committed & Potential Flows .................................................... 13
8.0 Cost Opinion ........................................................................................................................ 15
9.0 Conclusion and Recommendations ....................................................................................... 16
High Priority Improvements ........................................................................................................... 16
Medium Priority Improvements .................................................................................................... 17
Lower Priority Improvements ........................................................................................................ 17
Tables
Table 1. Rainfall Event Summary .................................................................................................................. 7
Table 2. Calibration Results Summary .......................................................................................................... 9
Table 3. Summary of Proposed Development Flows .................................................................................. 11
Table 4. Level of Service Criteria ................................................................................................................. 11
Table 5. Pump Station Upgrades for 2040 Committed Future Flow ........................................................... 12
Table 6. Force Main Upgrades for 2040 Committed Future Flow .............................................................. 13
Table 7. Gravity Pipe Improvement Summary for 2040 Committed Future Flow ...................................... 13
Table 8. Pump Station Peak Hour Flows for 2040 Committed & Potential Future Flow ............................ 14
Table 9. Gravity Pipe Improvement Summary for 2040 Committed & Potential Future Flow ................... 15
Table 10. Cost Estimates ............................................................................................................................. 16
Figures
Figure 1. Rainfall distribution for 2-year design storm ............................................................................... 10
Phase 2 Report Town of Hillsborough, NC
Barton & Loguidice, DPC
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Appendices
Appendix A – Dry Weather Flow Validation Results
Appendix B – Calibration Results
Appendix C – Future Development Flows
Appendix D – Maps of Proposed Improvements
Appendix E – Cost Analysis Detail
Appendix F – Flow Monitoring Memorandum
Town of Hillsborough, NC Phase 2 Report
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EXECUTIVE SUMMARY
The Town of Hillsborough (Town) has an existing collection system which includes aging pipe especially
in the older, historic areas. The Town has invested significantly in wastewater treatment needs in recent
years, but a comprehensive capacity evaluation of the sewer system has not occurred in over 30 years.
The Town wanted to better understand the system-wide sewer capacity especially considering the
extensive growth projected to occur. New development across the Town is projected to result in almost
double the daily sewer flows by 2040. The Town is striving to identify capacity improvement needs to
plan for them in advance of the increased flows expected from development. In addition, aging
infrastructure has caused increased wet-weather flows. Therefore, the Town is planning to incorporate
capacity improvements into the capital improvement program.
The purpose of this task is to identify the projects and budget costs needed to serve these increased
flows. The Phase 1 study was completed in 2020 to evaluate the peak dry weather flows in the system
and future growth needs. This Phase 2 study further evaluated wet weather flows through flow
monitoring and data analysis, creating a calibrated wet weather model, and evaluating improvements
based on updated flow projections.
In conjunction with the flow monitoring portion of this study (Refer to Flow Monitoring Memorandum
dated December 2020 in Appendix F), the hydraulic model was calibrated and analyzed for future flows
under design storm conditions in order to assist the Town in planning capital improvement projects.
The 2040 projected flows under a design storm were used to identify proposed improvements under
two projected development conditions provided by the Town: “committed” and “potential” status. The
growth projections included in this study are based on projects identified for open parcels with a
concept proposed by a developer. There is some uncertainty in the level of “potential” development
projects that will be realized by the 2040 timeframe. It is noted that the Town may experience higher
density infill development in the future, which was not considered for this study.
The level of service, summary of the results, and recommendations for proceeding are as follows:
• Level of service: The level of service criteria set the performance requirements for the system
under the design storm future flows. The level of service used for this analysis are identified
below.
Category Level of Service Criteria During Wet Weather
SSO No SSOs
Force Main 2 ft/s < Velocity < 10 ft/s; also reasonable TDH for pumps
Pumping Station Conveys peak flow, multiple pumps may be operating
simultaneously
Manholes Minimum 2 ft of freeboard height, or no surcharging for shallow
manholes
Phase 2 Report Town of Hillsborough, NC
Barton & Loguidice, DPC
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• Summary of Phase II: Wet Weather results: The wet weather future flow improvements for each
planning condition were determined by the design criteria and analysis of the calibrated model.
Planning Condition Cost of Improvements*
2040 Committed Flows $36,670,000
2040 Committed and Potential Flows $42,740,000
*Includes the River PS costs; analyzed and provided by others
• Recommendations: The results indicate that wet weather and future development would
require significant improvements in order to achieve the level of service criteria identified for
this study. I&I due to pipe age and condition is the key driver of improvements in the
River/WWTP Raw Sewage PS basin, whereas development flows are the main concern for the
Elizabeth Brady PS basin. The recommended implementation plan for addressing the system
needs is listed below in order of highest to lowest priority. Without investment in capacity
upgrades and/or I&I reduction, the increased flows will increase the risk of sanitary sewer
overflows in the Town.
1. River PS Basin Priorities. The River PS basin and the River/WWTP Raw Sewage PS basin have
capacity issues under existing wet weather conditions. Flow rates exceeding the design capacity
of the pump station were measured during flow monitoring. In addition, surcharging occurred in
the River interceptor. The River Basin improvements listed below are high priority and should
be initiated as soon as practical after completion of this study in order to address existing
deficiencies.
a. River PS Upgrade – Concurrent study of the upgrade to the River PS is underway and
should continue. The Town should proceed with this upgrade and accommodate the
2040 peak design storm flow from this study, either based on committed or committed
and potential development.
b. Exchange Park Lane Gravity Sewer Upgrade – This gravity sewer is ready for an upgrade
due to capacity deficiency for both existing and proposed conditions. This project would
be 2,250 LF of gravity sewer replacement to 15-inch (2040 Committed) or 18-inch
diameter (2040 Committed + Potential Flows).
c. River Interceptor – from Exchange Park Gravity Sewer to WWTP – This project would
consist of 1,780 LF of 30-inch replacement and 2,280 LF of 36-inch replacement. It is
recommended to size this interceptor for the most conservative flow condition, 2040
Committed and Potential Flow, due to this being the most downstream section in the
system, unless I&I reduction improvements are made prior to the design.
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2. The Lawndale PS has experienced overflows in the past (Data Review Memorandum, 2019), and
high flow rates for the basin size were measured during recent flow monitoring. This basin is a
relatively small size, with 105 connections and 7,420 LF of gravity pipe. This basin would be a
good candidate for I&I reduction projects to minimize the scope of the upgrades included in this
study. This is a high priority for I&I reduction or SSES projects. Upon completion of rehab of the
gravity system, a study is recommended to confirm the effectiveness of I&I reduction and future
pump station and force main needs. Performing this as a pilot study could give the Town an idea
of the cost effectiveness of sewer rehab in the River PS basin to inform future decisions.
3. Elizabeth Brady PS Upgrade. The Elizabeth Brady PS has capacity issues under wet weather
conditions which would be worsened with the proposed development flows. Capacity
improvements for the pump station are a medium priority for both current and future flow
conditions.
4. River PS Basin Gravity Sewer Improvements. The remaining gravity sewer improvements can be
assessed upon completion of the Lawndale PS I&I pilot rehab project. Additional sewer rehab
projects could be completed prior to gravity replacements pending the level of success in the
Lawndale basin.
5. Pump Station and Force Main Improvements in River PS Basin. Several pump stations are
included for improvement based on the level of service criteria used in this study. These include:
Rencher Force Main, Churton Grove PS, Strouds Creek PS, and Corbinton Commons PS. These
pump stations were not individually metered during the flow monitoring. A closer look at each
of these facilities is recommended, including flow monitoring or review of operational data to
better refine the needs of these facilities before design of any improvements. These are lower
priority improvements.
6. The gravity sewer tributary to the Elizabeth Brady PS could have capacity issues depending on
the level of development realized in the basin. This gravity sewer should be monitored and
considered for future improvements. This is a lower priority improvement and can be
coordinated with the schedule of development.
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1.0 INTRODUCTION
The Town wanted to evaluate their existing sewer capacity due to the extensive growth projected from
new development, which could result in almost double the daily sewer flows by the 2040 timeframe.
The Town is striving to identify capacity improvement needs in advance of the increased flows expected
from development. In addition, aging infrastructure has caused increased wet-weather flows. To
adequately prepare for future development the Town is planning to incorporate capacity improvements
into the capital improvement program.
The purpose of this task is to identify the projects and budget costs needed to serve these increased
flows. The Phase 1 study was completed in 2020 which evaluated the peak dry weather flows in the
system and future growth. This Phase 2 study further evaluated wet weather flows through flow
monitoring and data analysis, created a calibrated wet weather model, and evaluated improvements
based on updated flow projections and a design storm.
In conjunction with the flow monitoring portion of this study (Refer to Flow Monitoring Memorandum
dated December 2020), the hydraulic model was calibrated and analyzed for future flows under design
storm conditions to assist the Town in the planning of capital improvement projects.
2.0 MODEL UPDATE
The dry weather flow model was created as described in the Collection System Model – Phase 1 Report,
June 2020. The hydraulic model was updated to be able to analyze under extended period simulation
and for wet weather conditions. The pump station and force main data was added into the model. The
model was updated to include updated survey and facility information where new information was
available to provide more accurate elevation data.
3.0 SANITARY LOADING AND DRY WEATHER FLOWS
The average daily flows were updated to match the flow monitoring data, and diurnal patterns
developed from flow monitoring were applied for each basin so the model would predict flow variation
over time. A graph of dry weather flow results for each basin is provided in Appendix A.
4.0 WET WEATHER CALIBRATION
4.1. Rainfall Event Selection
The Town’s rain data was reviewed in conjunction with the flow meter data to select events for
calibration. A summary of the calibration events is indicated in the following Table 1.
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Table 1. Rainfall Event Summary
Rainfall Dates Total Rainfall Depth
(in)
Peak Intensity (in/hr) Duration (hrs)
4/30/2020 1.84 0.84 20
5/18-22/2020 5.53 0.44 108
6/10-11/2020 1.73 0.72 30
Note:
1. The values presented above are for the Cemetery PS Rain Gauge.
4.2. Rainfall Simulation and Hydrology
In addition to dry weather flow, rainfall derived inflow and infiltration (I&I) was also incorporated into
the hydrologic and hydraulic model. Rainfall data from the rain gages was input directly into the model
for hydrologic computations. Drainage areas were determined by dividing each sewer shed area across
the manholes in the sewer shed. The drainage area and the unit hydrograph RTK method were used to
simulate the I&I entering the sewer system at each manhole. The RTK parameters were adjusted during
the calibration process to improve the model results as compared to the observed values.
Wet weather flows consist of two types: inflow and infiltration, which make up I&I. Inflow is a rapid flow
increase caused by direct connections such as roof drains, sump pumps, or storm drain connections.
Many inflow sources are typically illicit connections, which can be remedied to reduce peak flows.
Infiltration flow is due to leaks in the gravity sewer pipes, laterals, and manholes and often occurs with
raising ground water level which varies seasonally and due to rainfall.
4.3. Calibration Results Summary
The calibration criteria evaluated included volume and peak flow rate. The calibration goal was for the
model to predict both volume and peak flow rate within a range of +/- 20% of the observed values. The
calibration looks at both peak flow rates and total volume of flow during the event. In general, for a
sanitary sewer, peak flow rate is the limiting factor of the pipe capacity that causes sanitary sewer
overflow. A higher priority is given to flow rate when calibrating. Further, when calibrating to multiple
events it can be challenging given the changes in hydrologic conditions between events. The goal is to
reasonably match field measured values across multiple events. Table 2 below demonstrates that the
goal was obtained for many of the results, but some areas were challenging to calibrate. In general, the
model mimics the observed trends and peak flows across the flow meter basins. Therefore, the model
was considered suitable to proceed with the design storm analysis and a good prediction of peak flows
for planning purposes. Refer to Appendix B for graphs of each event and flow meter location.
The results for FM-1 Dixie Ave PS have some variation, but the overall flow rates are very low at this
pump station so a small flow difference results in a large percent difference. The Lawndale PS was
challenging to calibrate due to much lower flows measured for the June event, including lower flow
during dry periods. It is possible that groundwater infiltration is more significant in this basin, or there
was an issue with the field collected data.
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The River/WWTP Raw Sewage PS contains an inlet channel with a weir gate that regulates the hydraulic
grade. In order to calibrate the upstream FM-3 and nearby iTracker, the model was adjusted to account
for the inlet channel elevation restriction. The model represents a simplified version, and thus some
level fluctuations are seen in the model that are not observed in the measurements. This allowed the
model to better match peak flow.
Level data was also incorporated into the calibration process to assist with improving the model
upstream of the flow meters. Available level data from the Town’s iTracker data collectors was used to
supplement the flow calibration. The level graphs are included in Appendix B.
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Table 2. Calibration Results Summary
Basin Event Date
Modeled
Volume
(gallons)
Observed
Volume
(gallons) Difference
Modeled
Peak Hour
Flow
(GPM)
Observed
Peak Hour
Flow
(GPM) Difference
FM-1
Dixie Ave
PS
4/30/2020
14,121
15,384 -8%
24
24 -1%
5/18/2020
54,083
98,118 -45%
20
34 -42%
6/10/2020
13,079
13,979 -6%
24
30 -22%
Overall
81,284
127,482 -36%
FM-2
Lawndale
PS
4/30/2020
107,660
234,421 -54%
147
199 -26%
5/18/2020
306,597
629,752 -51%
144
199 -28%
6/10/2020
54,348
28,771 89%
126
58 117%
Overall
468,605
892,944 -48%
FM-3
River/
WWTP
Raw
Sewage
PS
4/30/2020
3,250,672
3,242,253 0%
3,416
3,106 10%
5/18/2020
8,243,842
11,684,221 -29%
3,145
4,246 -26%
6/10/2020
2,244,476
1,763,882 27%
3,424
2,895 18%
Overall
13,738,989
16,690,356 -18%
FM-4
Elizabeth
Brady PS
4/30/2020
514,222
521,997 -1%
767
657 17%
5/18/2020
1,950,500
2,658,810 -27%
739
914 -19%
6/10/2020
703,947
954,863 -26%
1,310
1,699 -23%
Overall
3,168,669
4,135,670 -23%
Barton & Loguidice, DPC
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5.0 DESIGN RAINFALL EVENT
The team evaluated options for a design rainfall event for the study. The design rainfall event ultimately
selected was a 2-year return period, 24-hour duration storm, which is commonly used for a planning
level event by many utilities. For this project, the team determined that a 2-year return period event
would be a practical design storm. A greater storm would be more conservative in predicting peak flows,
but that could also result in infrastructure that would be sized for infrequent events and oversized for
normal operating conditions. The 2-year storm provides a reasonable balance by minimizing overflows,
yet remaining feasible and reasonable for normal conditions.
The 2-year return period, 24-hour storm for Hillsborough, NC has a total rainfall depth of 3.51 inches.
The rainfall distribution to be used for the model was developed using the Soil Conservation Service
(SCS) Type II distribution, which is applicable to Hillsborough’s geography. The peak intensity is 4.8 in/hr,
which is greater than that observed from storms during the flow monitoring study, and is deemed to be
conservative. A graph of the design rainfall distribution used for the analysis is included in Figure 1.
Figure 1. Rainfall distribution for 2-year design storm
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6.0 FUTURE DEVELOPMENT FLOW PROJECTIONS
The Town refined the future flow projections and updated them after the Phase 1 study. The updated
future flows provided by the Town are listed in the following Table 3. The 2040 projected flows were
provided by the Town under two projected development conditions: “committed” and “potential”. The
growth projections included in this study are based on projects identified for open parcels with a
concept proposed by a developer. There is some uncertainty in the level of “potential” development
projects that will be realized by the 2040 timeframe. It is noted that the Town may experience higher
density infill development in the future, which was not considered for this study.
For detail of each development, its associated average daily flow for model input, and the location, refer
to Appendix C. The flows added to the 2040 Committed Future Flow Scenario and the 2040 Committed +
Potential Future Flow Scenario used the same diurnal patterns as determined from the flow metering
for each meter basin.
Table 3. Summary of Proposed Development Flows
Category 2040 Average Day Flow Increase (gpd)
Committed Development 457,500
Potential Development 492,500
Total Flow Increase 950,000
Capacity improvements and upgrades could be limited by the Town’s permitted treatment capacity at
the wastewater treatment plant (WWTP), and allowable nutrient levels. This could consequently limit
proposed development. The 5-year average daily flow from the Phase I study was 1.05 MGD to the
WWTP, which has a permitted capacity of 3.0 MGD. However, the annual average nutrient limitation is
2.2 MGD largely due to the total nitrogen concentration.
7.0 PROPOSED IMPROVEMENTS
The model was analyzed under the future flow scenarios with the design storm, in order to identify
deficiencies and define improvements. The improvements were initially selected from the results of the
Phase 1 study. The capacity was also evaluated from the level of service criteria listed in the following
Table 4.
Table 4. Level of Service Criteria
Category Level of Service Criteria During Wet Weather
SSO No SSOs
Force Main 2 ft/s < Velocity < 10 ft/s; also reasonable TDH for pumps
Pumping Station Conveys peak flow, multiple pumps may be operating
simultaneously
Manholes Minimum 2 ft of freeboard height, or no surcharging for shallow
manholes
Barton & Loguidice, DPC
Merrick & Company - 12 - «ProjectNumber»/06.2021
The level of service for peak dry weather flow identified for the Phase 1 Study included the pumping
station conveying the peak flow under firm capacity (the largest pump out of service). For the wet
weather peak flow, the team determined that multiple pumps could be operating simultaneously under
design storm conditions.
The level of service for peak dry weather flow identified for the Phase 1 Study included the design
guideline of 60% full at peak dry weather flow condition. A peak factor of 2.83 was calculated based on
population of the Town. Upon completion of the model calibration, the main driver of gravity pipe size
in the River PS basin is the wet weather flow and the freeboard height in the manholes. However, the
Elizabeth Brady PS basin has much lower wet weather inflow and infiltration. Therefore, the 60% full
flow at peak dry weather flow results in more conservative pipe sizing than the minimum 2 ft of
freeboard during the design storm. Therefore, the peak dry weather flow criteria was used for the pipe
size selection for the Elizabeth Brady PS basin. In addition, the 2.83 peak factor was used for pump
station capacity.
7.1. Improvements for 2040 Committed Flows
The pumping station capacity and force mains were evaluated for the associated level of service. The
pumping stations needing upgrades to achieve the level of service are listed in Table 5 with the
associated peak hour flow under 2040 Committed Future Flow scenario. Pumping stations not included
in the table were determined to have adequate capacity for the peak flow modeled. However, a select
number of minor pumping stations were not analyzed in the model.
Table 5. Pump Station Upgrades for 2040 Committed Future Flow
PS Upgrades1,2,3
Existing Firm
Capacity (gpm)
Model 2040
Committed Peak
Design Storm
Flow (gpm)
2040 Committed PS
Upgrade Design
Flow (gpm)
Lawndale 57 410 410
Churton Grove 426 930 930
Strouds Creek 251 427 427
Corbinton Commons 419 614 614
River 4000 7082 7082
Elizabeth Brady 900 15894 22304
Notes:
1. PS not evaluated include: Tiny Tots, Timbers TP, Oakdale, New Hope, Shelton Court.
2. Rencher PS is projected to have adequate capacity to accommodate peak flows if the force main
is upgraded.
3. PS with adequate capacity for the model peak flows include: Dixie PS, Governor Burke PS,
Cemetery PS, Cedar Creek PS, Patriot’s Pointe PS, Cedar Ridge HS PS, Gatemoore PS, Magnolia
Place PS, Woods Edge Back PS, Woods Edge Front PS, Nazarene PS.
65420403/06.2021 - 13 - Barton & Loguidice, DPC
4. Elizabeth Brady recommended pipe size for 2040 Committed peak dry weather flow of 2230
gpm, based on average day flow and design peaking factor.
The force mains were evaluated for velocity and total dynamic head (TDH) condition on the pump
station. The Lawndale force main would result in velocity near 10 ft/s and high TDH (over 300 ft) under
existing sizing. Therefore, an upgrade is proposed for wet weather flows. The Rencher force main would
also result in velocity near 10 ft/s and high TDH (over 300 ft) under existing sizing. Therefore, an upgrade
is proposed to accommodate wet weather flows. Table 6 lists the force main upgrades for the 2040
Committed Future Flow scenario.
Table 6. Force Main Upgrades for 2040 Committed Future Flow
Force Main Upgrades
Existing
Diameter (in)
Proposed Diameter
(in)
Length of
Replacement (LF)
Lawndale 4 6 3,500
Rencher 4 6 3,500
The gravity system improvements were evaluated under the design storm future flow to accommodate
the peak flow with at least 2 feet of freeboard in the gravity manholes. The scope of improvements for
the gravity system is listed in the following Table 7.
Table 7. Gravity Pipe Improvement Summary for 2040 Committed Future Flow
Replacement
Diameter
(inches)
Original Diameter (inches) Total
Replacement
Length (LF)
- 8 10 12 16 18 21 -
12
8,158 663 8,821
15 986 986
18 1,260 948 2,208
21 2,791 2,791
24 2,244 2,244
30 359 1,176 904 2,438
36 2,280 2,280
Grand Total
8,158 2,909 948 359 6,210 3,184 21,768
7.2. Improvements for 2040 Committed & Potential Flows
The 2040 Committed and Potential Flow scenario was also evaluated for the design storm to determine
capacity upgrades necessary to attain the levels of service identified. The potential development flow
resulted in increased upgrades and greater peak flows at multiple locations. Capacity issues were noted
at the same pumping stations as the 2040 Committed Future Flow scenario, but with even greater flows
Barton & Loguidice, DPC
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at some facilities. A summary of the peak hour flows for the 2040 Committed and Potential Future Flow
scenario is included in Table 8.
Table 8. Pump Station Peak Hour Flows for 2040 Committed & Potential Future Flow
Existing Firm
Capacity
(gpm)
Model 2040
Committed +
Potential Peak
Design Storm
Flow (gpm)
2040 Committed
+ Potential PS
Upgrade Flow
(gpm)
Lawndale 57 410 410
Churton Grove 426 930 930
Strouds Creek 251 479 479
Corbinton
Commons 419 739
739
River 4000 7237 7237
Elizabeth Brady 900 18684 26564
Notes:
1. PS not evaluated include: Tiny Tots, Timbers TP, Oakdale, New Hope,
Shelton Court.
2. Rencher PS is projected to have adequate capacity to accommodate peak
flows if the force main is upgraded.
3. PS with adequate capacity for the model peak flows include: Dixie PS,
Governor Burke PS, Cemetery PS, Cedar Creek PS, Patriot’s Pointe PS, Cedar
Ridge HS PS, Gatemoore PS, Magnolia Place PS, Woods Edge Back PS,
Woods Edge Front PS, Nazarene PS.
4. Elizabeth Brady recommended pipe size for 2040 Committed & Potential
peak dry weather flow of 2656 gpm, based on average day flow and design
peaking factor.
The force main upgrades listed in the 2040 Committed Future Flow scenario are also adequate for the
2040 Committed & Potential Future Flow scenario. No additional force main upgrades are anticipated to
accommodate the potential flows.
The scope of improvements for the gravity system are listed in the following Table 9. The improvements
for the gravity pipe are cumulative, including all improvements for the 2040 Committed Flow scenario.
65420403/06.2021 - 15 - Barton & Loguidice, DPC
Table 9. Gravity Pipe Improvement Summary for 2040 Committed & Potential Future Flow
Replacement
Diameter
(inches)
Original Diameter (inches) Total
Replacement
Length (LF)
- 8 10 12 16 18 21 -
10 1,388 1,388
12
8821 8821
15
8,158 663 986
18 986 8,064
24 6,564 6,564
30 359 1,176 904 2,438
36 2,280 2,280
Grand Total
9,547 2,909 948 6,214 7,740 3,184 30,541
8.0 COST OPINION
A cost estimate for the recommended improvements, across Hillsborough sewer system, are located in
Appendix E. These the costs for all improvements, broken out by the 2040 Committed Flow and 2040
Committed & Potential Future Flow. Additionally, the Elizbeth Brady Basin, and River Pump Station
Basin, were summarized separately. The improvements by basin are shown in Appendix D1 and D2 for
the two 2040 flows.
The cost analysis included several assumptions described as follows:
• Where upsizing pipes occurred, all existing manholes were assumed to be replaced.
• Unit rates of cost line items were taken from Phase 1 cost estimates and
adjusted to 2021 costs per the Engineering News Record (ENR) Construction
Cost Index (CCI). The CCI is typically used by municipalities as an inflation
adjustment factor of market conditions based on labor and materials, and for
this report is May 2021: 11989.91
• Additional costs were derived from bid tabs from project years (2017-2021)
previously performed by Merrick and Company for sewer construction and for lift
station and sewer pumping station construction.
• Included in the unit rate are estimations of engineering design and construction services.
These services include permitting, inspection fees, minor easements, and survey. An
additional 15% was added for construction mobilization and general site work.
• Pump Station upgrades include construction of an entirely new lift station with added
pumps and new configuration and electrical design.
• Rive Pump Station upgrade is being handled by another firm. Their cost estimate was
provided by the Town of Hillsborough. No adjustments were made for flow.
• A summary of the cost for the Wet Weather sanitary sewer improvements, both for
Barton & Loguidice, DPC
Merrick & Company - 16 - «ProjectNumber»/06.2021
2040 Committed and 2040 Committed & Proposed Flows, are shown in Table 10. The
Elizabeth Brady basin improvements and the River basin improvements are shown
separately, and then summed (and rounded up) for the total (All basins) cost. A
detailed breakdown of the costs, by improvement, is provided in Appendix E.
These are planning costs only, taken at this time. Before designing and constructing any of the
proposed improvements, each project should be reviewed in detail and an additional cost estimate
conducted to ensure pricing is current and reflects any new assumptions and additional
information.
Table 10. Cost Estimates
BASIN 2040 Committed – COST 2040 Committed and Proposed – COST
Elizabeth Brady $4,510,000 $9,270,000
River $20,810,000 $20,990,000
All Basins (no
contingency) $29,330,000 $34,190,000
All Basins (25%
contingency) $36,670,000 $42,740,000
9.0 CONCLUSION AND RECOMMENDATIONS
The results indicate that the impacts of wet weather and future development would require significant
improvements in order to achieve the level of service criteria identified for this study. I&I is the key
driver of improvements in the River/WWTP Raw Sewage PS basin, whereas development flows are the
main concern for the Elizabeth Brady PS basin. The recommended implementation plan for addressing
the system needs is listed below in order of highest to lowest priority. Without investment in capacity
upgrades and/or I&I reduction, the increased flows will increase the risk of sanitary sewer overflows in
the Town.
High Priority Improvements
1. River PS Basin Priorities. The River PS basin has capacity issues under existing wet weather
conditions, with surcharging observed during wet weather during flow monitoring. In addition,
the River/WWTP Raw Sewage PS has capacity issues for wet weather conditions. Flow rates
exceeding the design capacity of the pump station were measured during flow monitoring. The
River Basin improvements listed below are high priority and should be initiated at the
completion of this study to address existing deficiencies.
a. River PS Upgrade – Concurrent study of the upgrade to the River PS is underway and can
continue. The Town should proceed with this upgrade and accommodate the 2040 peak
design storm flow from this study, either based on committed or committed and
potential development.
65420403/06.2021 - 17 - Barton & Loguidice, DPC
b. Exchange Park Lane Gravity Sewer Upgrade – This gravity sewer is ready for an upgrade
due to capacity deficiency for both existing and proposed conditions. This project would
be 2,250 LF of gravity sewer replacement to 15-inch (2040 Committed) or 18-inch
diameter (2040 Committed + Potential Flows).
c. River Interceptor – from Exchange Park Gravity Sewer to WWTP – This project would
consist of 1,780 LF of 30-inch replacement and 2,280 LF of 36-inch replacement. It is
recommended to size this interceptor for the most conservative flow condition 2040
Committed and Potential Flow due to this being the most downstream in the system,
unless I&I reduction improvements are made prior to the design.
2. The Lawndale PS has experienced overflows in the past (Data Review Memorandum, 2019), and
high flow rates for the basin size were measured during recent flow monitoring. This basin is a
relatively small size, with 105 connections and 7,420 LF of gravity pipe. This basin would be a
good candidate for I&I reduction projects to minimize the scope of the upgrades included in this
study. This is a high priority for I&I reduction or SSES projects. Upon completion of rehab of the
gravity system, a study is recommended to confirm the effectiveness of I&I reduction and future
pump station and force main needs. Performing this as a pilot study could give the Town an idea
of the cost effectiveness of sewer rehab in the River PS basin to inform future decisions.
Medium Priority Improvements
3. Elizabeth Brady PS Upgrade. The Elizabeth Brady PS has capacity issues under wet weather
conditions which would be worsened with the proposed development flows. Capacity
improvements for the pump station is a medium priority improvement, for both current and
future flow conditions.
4. River PS Basin Gravity Sewer Improvements. The remaining gravity sewer improvements can be
assessed upon completion of the Lawndale PS I&I pilot rehab project. Additional sewer rehab
projects could be completed prior to gravity replacements pending the level of success at
Lawndale.
Lower Priority Improvements
5. Pump Station and Force Main Improvements in River PS Basin. Several pump stations are
included for improvement based on the level of service criteria used in this study. These include:
Rencher Force Main, Churton Grove PS, Strouds Creek PS, and Corbinton Commons PS. These
pump stations were not individually metered during the flow monitoring. A closer look at each
of these facilities is recommended, including flow monitoring or review of operational data to
Barton & Loguidice, DPC
Merrick & Company - 18 - «ProjectNumber»/06.2021
better refine the needs of these facilities before design of any improvements. These are lower
priority improvements.
6. The gravity sewer tributary to the Elizabeth Brady PS could have capacity issues depending on
the level of development realized in the basin. This gravity sewer should be monitored and
considered for future improvements. This is a lower priority improvement and can be
coordinated with the schedule of development.
APPENDIX A
Dry Weather Flow Validation Results
Dixie PS (FM-1) Dry Weather Flow Validation
SP-1280 - Existing Wet Weather Flow - Flow Dixie Avg FlowFlow (gpm )
50.0
40.0
30.0
20.0
10.0
0.0
Time (hours)
24.0022.0020.0018.0016.0014.0012.0010.008.006.004.002.000.00
Lawndale PS (FM-2) Dry Weather Flow Validation
SP-1369 - Existing Wet Weather Flow - Flow Observed Data - 1Flow (gpm )
50.0
40.0
30.0
20.0
10.0
Time (hours)
24.0022.0020.0018.0016.0014.0012.0010.008.006.004.002.000.00
River/WWTP Raw Sewage PS (FM-3) Dry Weather Flow Validation
SP-705 - Existing Dry Weather Diurnal - Flow Observed Data - 1Flow (gpm )
750.0
700.0
650.0
600.0
550.0
500.0
450.0
400.0
350.0
300.0
250.0
200.0
150.0
100.0
50.0
0.0
Time (hours)
24.0022.0020.0018.0016.0014.0012.0010.008.006.004.002.000.00
Elizabeth Brady PS (FM-4) Dry Weather Flow Validation
SP-2337 - Existing Wet Weather Flow - Flow Observed Data - 1Flow (gpm )
750.0
700.0
650.0
600.0
550.0
500.0
450.0
400.0
350.0
300.0
250.0
200.0
150.0
100.0
50.0
0.0
Time (hours)
24.0022.0020.0018.0016.0014.0012.0010.008.006.004.002.000.00
APPENDIX B
Calibration Results
Dixie PS Flow (FM-1) - 4-30-2020
SP-1280 - Calibration #1 - Flow Dixie 4-30-2020Flow (gpm)250.0
225.0
200.0
175.0
150.0
125.0
100.0
75.0
50.0
25.0
0.0
Time (hours)
120.0096.0072.0048.0024.000.00
Dixie PS Flow (FM-1) - 5-18-2020
SP-1280 - Calibration #2 - Flow Dixie Measured FlowFlow (gpm)250.0
225.0
200.0
175.0
150.0
125.0
100.0
75.0
50.0
25.0
0.0
Time (hours)
120.0096.0072.0048.0024.000.00
Dixie PS Flow (FM-1) - 6-10-2020
SP-1280 - Calibration #3 - Flow Dixie Measured FlowFlow (gpm)250.0
225.0
200.0
175.0
150.0
125.0
100.0
75.0
50.0
25.0
0.0
Time (hours)
120.0096.0072.0048.0024.000.00
Lawndale PS Flow (FM-2) - 4-30-2020
SP-1369 - Calibration #1 - Flow Observed Data - 1Flow (gpm)250.0
225.0
200.0
175.0
150.0
125.0
100.0
75.0
50.0
25.0
0.0
Time (hours)
120.0096.0072.0048.0024.000.00
Lawndale PS Flow (FM-2) - 5-18-2020
SP-1369 - Calibration #2 - Flow Lawndale Measured FlowFlow (gpm)250.0
225.0
200.0
175.0
150.0
125.0
100.0
75.0
50.0
25.0
0.0
Time (hours)
120.0096.0072.0048.0024.000.00
Lawndale PS Flow (FM-2) - 6-10-2020
SP-1369 - Calibration #3 - Flow Observed Data - 1Flow (gpm)250.0
225.0
200.0
175.0
150.0
125.0
100.0
75.0
50.0
25.0
0.0
Time (hours)
120.0096.0072.0048.0024.000.00
River / WWTP Raw Sewage PS Flow (FM-3) - 4-30-2020
CO-6 - Calibration #1 - Flow Observed Data - 1Flow (gpm)4,500.0
4,000.0
3,500.0
3,000.0
2,500.0
2,000.0
1,500.0
1,000.0
500.0
0.0
Time (hours)
120.0096.0072.0048.0024.000.00
River / WWTP Raw Sewage PS Flow (FM-3) - 5-18-2020
CO-6 - Calibration #2 - Flow Observed Data - 1Flow (gpm)4,500.0
4,000.0
3,500.0
3,000.0
2,500.0
2,000.0
1,500.0
1,000.0
500.0
0.0
Time (hours)
120.0096.0072.0048.0024.000.00
River / WWTP Raw Sewage PS Flow (FM-3) - 6-10-2020
CO-6 - Calibration #3 - Flow Observed Data - 1Flow (gpm)4,500.0
4,000.0
3,500.0
3,000.0
2,500.0
2,000.0
1,500.0
1,000.0
500.0
0.0
Time (hours)
120.0096.0072.0048.0024.000.00
Elizabeth Brady PS Flow (FM-4) - 4-30-2020
SP-2337 - Calibration #1 - Flow Observed Data - 1Flow (gpm)1,000.0
900.0
800.0
700.0
600.0
500.0
400.0
300.0
200.0
100.0
0.0
Time (hours)
120.0096.0072.0048.0024.000.00
Elizabeth Brady PS Flow (FM-4) - 5-18-2020
SP-2337 - Calibration #2 - Flow Observed Data - 1Flow (gpm)1,000.0
900.0
800.0
700.0
600.0
500.0
400.0
300.0
200.0
100.0
0.0
Time (hours)
120.0096.0072.0048.0024.000.00
Elizabeth Brady PS Flow (FM-4) - 6-10-2020
SP-2337 - Calibration #3 - Flow Observed Data - 1Flow (gpm)2,500.0
2,250.0
2,000.0
1,750.0
1,500.0
1,250.0
1,000.0
750.0
500.0
250.0
0.0
Time (hours)
120.0096.0072.0048.0024.000.00
iT-3__SMH-562 Level_4/30
SMH-562 - Calibration #1 - Depth (In)SMH-562 - Calibration #1 - Depth (Out)Observed Data - 1Depth - Large (in)65.00
60.00
55.00
50.00
45.00
40.00
35.00
30.00
25.00
20.00
15.00
10.00
5.00
0.00
Time (hours)
120.0096.0072.0048.0024.000.00
iTracker-6 Level (SMH-1114 halfway upstream in River Basin Interceptor) -
SMH-1114 - Calibration #1 - Depth (In)SMH-1114 - Calibration #1 - Depth (Maximum)Observed Data - 1Depth - Large (in)65.00
60.00
55.00
50.00
45.00
40.00
35.00
30.00
25.00
20.00
15.00
10.00
5.00
0.00
Time (hours)
120.0096.0072.0048.0024.000.00
iTracker-7 Level (SMH-1622 in Elizabeth Brady PS Basin) - 4-30-2020
SMH-1622 - Calibration #1 - Depth (In)SMH-1622 - Calibration #1 - Depth (Maximum)Observed Data - 1Depth - Large (in)65.00
60.00
55.00
50.00
45.00
40.00
35.00
30.00
25.00
20.00
15.00
10.00
5.00
0.00
Time (hours)
120.0096.0072.0048.0024.000.00
APPENDIX C
Future Development Flows
Future Development Flows
Development
Status
Manhole Number
Assigned
Development
Name Future Average
Day Flow (gpd)
Committed 2314 SW Quadrant I- 40/Old NC86 (Ind/Warehouse)108,000
Committed 2409 Waterstone - UNC Hospital (Bed wing)25,000
Committed 1527 Waterstone – DTCC (Edu)6,000
Committed 2324 Waterstone – MOB (Ofc)1,500
Committed 2791 Forest Ridge (SFR)14,500
Committed 2632 Fiori Hill (SFR)2,500
Committed 200 Collins Ridge (TH/SFR)230,000
Committed 1405 Collins Ridge (TH/SFR)13,000
Committed 646 Daphine Drive (SFR)2,500
Committed 563 East Village at Meadowlands (TH)17,500
Committed 2358 VIMA (SFR)1,000
Committed 2107 OC Northern Campus (govt)5,000
Committed 1393 Hillsborough Commons (dentist/food/retail)13,000
Committed 543 Leland Little Expansion (warehouse)10,500
Committed 2121 Combs Circle (SFR)1,000
Committed 1070 Spruce St (SFR)1,000
Committed 433 Mavis Tire (ret)5,500
Potential 1405 Train Station (govt/apts)72,000
Potential 241 Paliorous Property (mixed)32,000
Potential 220 Owl's Wood (apts)10,000
Potential 2616 Owl's Wood (apts)10,000
Potential 1489 Moren (apts)53,000
Potential 691 Gatewood Project (bar/retail)5,000
Potential 2023 Daniel Boon Redev. (mixed)39,000
Potential 2311 Bailey (lodging)10,000
Potential 2329 Brown 5,000
Potential 2333 Addison 21,500
Potential 1602 Waterstone (Retail)13,000
Potential 1602 Waterstone (Restaurant)27,000
Potential 1612 Waterstone (Bus/Ind)9,500
Development
Status
Manhole Number
Assigned
Development
Name Future Average
Day Flow (gpd)
Potential 900/892/2022/857 Jones Avenue (11 SFR)3,000
Potential 1604 Shah (Hotel/retail)12,500
Potential 2130 Thalle III (flex)2,500
Potential 1406 Oakdale Village (Ret/Rest)9,000
Potential 1122 Meadowlands (Bus/Ind)20,000
Potential 518 Cornerstone (Bus/Ind)10,000
Potential 2723 Corbinton Commons (MAHS)37,000
Potential 1271 Moose Lodge Site (?)4,500
Potential 659 Johnson Parcels (SFRs)2,000
Potential 1498 Old Mill/Millstone Bus Park (lt. ind/office)16,000
Potential 2350 Torain St (SFR)1,500
Potential 1200 Rencher St (SFR)5,500
Potential Woods Edge Front PS NC 86 S near Waterstone 20,000
Potential 1612 Terry Parcel 42,000
NC 86 S Near Waterstone
WWTP
Shah
Brown
Moren
Bailey
Addison
Owl's Wood
Thalle III
Owl's WoodCornerstone
Meadowlands
Daniel Boone
Jones Avenue
Jones Avenue
Jones Avenue
Jones Avenue
Torain Street
Rencher Street
Oakdale Village
Johnson Parcels
Moose Lodge Site
Gatewood Project
Corbinton Commons
Waterstone RTL/RST
Paliorous Property
Old Mill/Millstone Bus Park
Terry Parcel/Waterstone Bus/In
VIMA
Fiori Hill
Mavis Tire
Forest Ridge
Combs Circle
Spruce Street
Daphine Drive
Collins Ridge
Waterstone - MOB
OC Northern Campus
Hillsborough Commons
Leland Little Expansion
Waterstone - UNC Hospital
SW Quadrant I-40/Old NC 86
East Village at Meadowlands
Waterstone - DTCC, MF/T Home
Collins Ridge / Train Station
Figure
C-1
Project
No.
2267.001.001
µ
0 0.25 0.5Miles
Town of Hillsborough
2040 Committed and Potential
Development Locations
5/26/2021 North CarolinaOrange County
Legend
Existing Gravity Main
Diameter (Inches)
≤6
≤8
≤12
≤18
≤24
>24
Committed and Potential Development
Committed Developments
Potential Developments
APPENDIX D
Maps of Proposed Improvements
Elizabeth Brady PS
Nazarene PS
Lawndale PS
Cemetery PS
Alum Pond PS
Coachwood PS
Tiny Tots PS
Gatemoore PS
Northside PS
Dixie Ave. PS
Cedar Creek PS
Rencher St. PS
Shelton Ct. PS
Timbers T.P. PS
Oakdale T.P. PS
Strouds Creek PS
Churton Grove PS
Governor Burke PS
Magnolia Place PS
New Hope School PS
Woods Edge Back PS
Woods Edge Front PS
Patriot's Pointe PS
Corbinton Commons PS
WWTP Raw Sewage/River PS
Cedar Ridge High School PS
WWTP
Figure
D-1
Project
No.
2267.001.001
µ
0 0.3 0.6Miles
Town of Hillsborough
2040 Committed Flows
Proposed Improvements
5/24/2021 North CarolinaOrange County
Legend
Pumping Stations
Upgraded Capacity Pumping Stations
Upgraded Proposed Gravity Main (Committed)
Existing Gravity Main
Upgraded Proposed Force Main
Existing Force Main
Elizabeth Brady PS
Nazarene PS
Lawndale PS
Cemetery PS
Alum Pond PS
Coachwood PS
Tiny Tots PS
Gatemoore PS
Northside PS
Dixie Ave. PS
Cedar Creek PS
Rencher St. PS
Shelton Ct. PS
Timbers T.P. PS
Oakdale T.P. PS
Strouds Creek PS
Churton Grove PS
Governor Burke PS
Magnolia Place PS
New Hope School PS
Woods Edge Back PS
Woods Edge Front PS
Patriot's Pointe PS
Corbinton Commons PS
WWTP Raw Sewage/River PS
Cedar Ridge High School PS
WWTP
Figure
D-2
Project
No.
2267.001.001
µ
0 0.3 0.6Miles
Town of Hillsborough
2040 Committed and Potential Flows
Proposed Improvements
5/24/2021 North CarolinaOrange County
Legend
Pumping Stations
Upgraded Capacity Pumping Stations
Upgraded Proposed Gravity Main (Committed and Potential)
Existing Gravity Main
Upgraded Proposed Force Main
Existing Force Main
APPENDIX E
Cost Analysis Detail
Town of Hillsborough Collection System Model Merrick Engineering
Hillsborough, NC May-21
No. Item
Quantity 2040
Committed
Quantity 2040 Committed &
Proposed Units Unit Cost
Total 2040
Committed
Total 2040 Committed &
Proposed
1 10" PVC SEWER 0 1,388 LF 250$ -$ 347,075$
2 12" PVC SEWER 8,821 8,821 LF 290$ 2,558,177$ 2,558,177$
3 15" PVC SEWER 986 986 LF 390$ 384,540$ 384,540$
4 18" PVC SEWER 2,208 8,064 LF 530$ 1,170,240$ 4,273,761$
5 21" PVC SEWER 2,791 2,791 LF 580$ 1,618,780$ 1,618,780$
6 24" PVC SEWER 2,244 2,244 LF 630$ 1,413,720$ 1,413,720$
7 30" PVC SEWER 2,438 2,438 LF 720$ 1,755,360$ 1,755,360$
8 36" PVC SEWER 2280 2280 LF 740$ 1,687,200$ 1,687,200$
9 6" FORCEMAIN 7000 7000 LF 130$ 910,000$ 910,000$
10 MANHOLES (10" SEWER LINE) 0 8 EA 9,000$ -$ 72,000$
11 MANHOLES (12" SEWER LINE) 42 42 EA 9,000$ 378,000$ 378,000$
12 MANHOLES (15" SEWER LINE) 6 6 EA 12,600$ 75,600$ 75,600$
13 MANHOLES (18" SEWER LINE) 12 22 EA 15,800$ 189,600$ 347,600$
14 MANHOLES (21" SEWER LINE) 9 0 EA 19,000$ 171,000$ -$
15 MANHOLES (24" SEWER LINE) 10 26 EA 21,000$ 210,000$ 546,000$
16 MANHOLES (30" SEWER LINE) 12 12 EA 31,500$ 378,000$ 378,000$
17 MANHOLES (36" SEWER LINE) 10 10 EA 63,000$ 630,000$ 630,000$
18 LAWNDALE PS 410 410 EA 369,000$ 369,000$
19 CHURTON GROVE PS 930 930 EA 940,000$ 940,000$
20 STROUDS CREEK PS 427 479 EA 390,000$ 450,000$
21 CORBINTON COMMONS PS 614 739 EA 600,000$ 730,000$
22 RIVER PS 7082 7237 EA BY HAZEN 7,039,000$ 7,039,000$
23 ELIZABETH BRADY PS 2230 2656 EA 2,630,000$ 2,820,000$
SUBTOTAL 25,500,000$ 29,730,000$
MOBILIZATION/GENERAL CONDITIONS % 15% 3,825,000$ 4,459,500$
29,330,000$ 34,190,000$
CONTINGENCY % 25% 7,332,500$ 8,547,500$
36,662,500$ 42,737,500$
TOTAL 36,670,000$ 42,740,000$
Town of Hillsborough Collection System Model
Hillsborough, NC
Used ENR May 2021 - 11989.91
2040 Committed Flow
Elizabeth Brady PS Basin
No.Item Quantity Units Unit Cost Total
1 12" PVC SEWER 238 LF 290$ 69,000$
2 21" PVC SEWER 2791 LF 580$ 1,620,000$
3 MANHOLES (12" SEWER LINE) 1 EA 9,000$ 9,000$
4 MANHOLES (21" SEWER LINE) 9 EA 19,000$ 180,000$
5 PUMP STATION UPGRADE 1 EA 2,630,000$ 2,630,000$
Subtotal 4,510,000$
2040 Committed & Potential Flow
Elizabeth Brady PS Basin
No.Item Quantity Units Unit Cost Total
1 12" PVC SEWER 238 LF 290$ 69,000$
2 18" PVC SEWER 5856 LF 530$ 3,110,000$
3 24" PVC SEWER 4320 LF 640$ 2,770,000$
4 MANHOLES (12" SEWER LINE) 1 EA 9,000$ 9,000$
5 MANHOLES (18" SEWER LINE) 10 EA 15,800$ 158,000$
6 MANHOLES (24" SEWER LINE) 16 EA 21,100$ 338,000$
7 PUMP STATION UPGRADE 1 EA 2,820,000$ 2,820,000$
Subtotal 9,270,000$
Merrick Engineering
May, 2021
Town of Hillsborough Collection System Model
Hillsborough, NC
Used ENR May 2021 - 11989.91
2040 Committed Flow
River PS Basin
No.Item Quantity Units Unit Cost Total
1 12" PVC SEWER 7854 LF 290$ 2,280,000$
2 15" PVC SEWER 986 LF 390$ 384,000$
3 18" PVC SEWER 2208 LF 530$ 1,170,000$
4 24" PVC SEWER 2244 LF 630$ 1,410,000$
5 30" PVC SEWER 2438 LF 720$ 1,760,000$
6 36" PVC SEWER 2280 LF 740$ 1,690,000$
7 MANHOLES (12" SEWER LINE) 41 EA 9,000$ 369,000$
8 MANHOLES (15" SEWER LINE) 6 EA 12,600$ 76,000$
9 MANHOLES (18" SEWER LINE) 12 EA 15,800$ 190,000$
10 MANHOLES (24" SEWER LINE) 10 EA 21,000$ 210,000$
11 MANHOLES (30" SEWER LINE) 12 EA 31,500$ 380,000$
12 MANHOLES (36" SEWER LINE) 10 EA 63,000$ 630,000$
13 LAWNDALE FORCEMAIN 6" 3500 LF 130$ 460,000$
14 RENCHER FORCEMAIN (6") 3500 LF 130$ 460,000$
15 LAWNDALE PS 1 EA 369,000$ 369,000$
16 CHURTON GROVE PS 1 EA 940,000$ 940,000$
17 STROUDS CREEK PS 1 EA 390,000$ 390,000$
18 CORBINTON COMMONS PS 1 EA 600,000$ 600,000$
19 RIVER PS (COST BY HAZEN)*1 EA 7,039,000$ 7,039,000$
Subtotal 20,810,000$
2040 Committed & Potential Flow
River PS Basin
No.Item Quantity Units Unit Cost Total
1 12" PVC SEWER 7854 LF 290$ 2,280,000$
2 15" PVC SEWER 986 LF 390$ 384,000$
3 18" PVC SEWER 2208 LF 530$ 1,170,000$
4 24" PVC SEWER 2244 LF 630$ 1,414,000$
5 30" PVC SEWER 2438 LF 720$ 1,755,000$
6 36" PVC SEWER 2280 LF 740$ 1,690,000$
7 MANHOLES (12" SEWER LINE) 41 EA 9,000$ 369,000$
8 MANHOLES (15" SEWER LINE) 6 EA 12,600$ 76,000$
9 MANHOLES (18" SEWER LINE) 12 EA 15,800$ 190,000$
10 MANHOLES (24" SEWER LINE) 10 EA 21,000$ 210,000$
11 MANHOLES (30" SEWER LINE) 12 EA 31,500$ 378,000$
12 MANHOLES (36" SEWER LINE) 10 EA 63,000$ 630,000$
13 LAWNDALE FORCEMAIN 6" 3500 LF 130$ 460,000$
14 RENCHER FORCEMAIN 6" 3500 LF 130$ 460,000$
15 LAWNDALE PS 1 EA 369,000$ 369,000$
16 CHURTON GROVE PS 1 EA 940,000$ 940,000$
17 STROUDS CREEK PS 1 EA 450,000$ 450,000$
18 CORBINTON COMMONS PS 1 EA 730,000$ 730,000$
RIVER PS (COST BY HAZEN)*1 EA 7,039,000$ 7,039,000$
Subtotal 20,990,000$
Merrick Engineering
May, 2021
*Separate costs were not provided, therefore the same price is used for both the 2040 Committed Flow and the 2040
Committed & Potential Flow
APPENDIX F
Flow Monitoring Memorandum
Hillsborough Flow Monitoring Memo 4
Memo To: Marie Strandwitz, Utility Director
Town of Hillsborough
Date: 12/10/20
From: John McLaughlin, P.E.
David Kerr, P.E.
Project No.: 65420403
Phase No.: 2
Re: Flow Monitoring Memorandum
Introduction
This memorandum provides a summary of the flow monitoring data collection and analysis portion of the
hydraulic evaluation for the Town of Hillsborough. Flow monitoring was performed to better quantify existing
flows in the Town’s collection system and understand wet weather peak flows. The flow monitoring data
collected will be used to calibrate a wet weather hydraulic model. The hydraulic model will be used to identify
improvements needed to accommodate wet weather flows and the planned growth due to development.
Data Collection
Two types of sensors were used for the monitoring within the sewer system: area-velocity flow meters and i-
Trackers. The area-velocity meters measure the flow depth and the velocity of the fluid. This then is used to
calculate the flow rate. The i-Trackers were used to supplement flow metering in the system at some additional
locations. The i-Trackers measure flow depth, only, but can assist with understanding the extent of surcharging
during a rainfall event.
Flow data was collected from April 27, 2020 to August 6, 2020 at four locations in the system. In addition, i-
Tracker data is available for some of that time period at 3 locations. Refer to Appendix A for a map of the flow
meter and i-Tracker locations during the monitoring period. Some of the i-Trackers installed for supplemental
monitoring encountered gauge errors such as battery power and data storage issues and were unavailable for
some or all the flow monitoring period. Table 1 lists the flow monitoring locations for this study, while Table 2
lists the i-Tracker locations that were recording during the monitoring period.
The Town measures rainfall at multiple locations. The following rainfall gauge locations will be used for the
analysis, due to proximity to the flow monitoring basins: Strouds Creek PS, Cemetery PS, and Woods Edge Front
PS.
Town of Hillsborough
Flow Monitoring Memorandum
Page 2
Hillsborough Flow Monitoring Memo 4
Table 1. Flow Monitoring Location Summary
Flow Meter Location Manhole ID Description Associated Rain Gauge
1 SAMH1250 8-inch, Dixie Ave PS Basin Strouds Creek
2 SAMH1216 8-inch, Lawndale PS Basin Cemetery
3 SAMH560 21-inch, River PS Basin Cemetery
4 SAMH2449 18-inch, Elizabeth Brady
PS Basin
Woods Edge Front
Table 2. i-Tracker Location Summary
i-Tracker
Location
Manhole ID Available Dates Description Associated Rain
Gauge
3 SAMH562 4/27-5/13; 6/11-
6/24
21-inch, Near Flow Meter HB-
3
Cemetery
6 SAMH1114 3/4-5/18 18-inch, Upstream in River PS
Basin, Gold Park
Cemetery
7 SAMH1622 3/4-5/18 16-inch, Upstream in Elizabeth
Brady PS Basin, Beckett’s
Ridge
Woods Edge Front
Data Analysis
The flow meter data was graphed in hydrographs to present the flow over time. Refer to Appendix B for the
hydrographs and scatterplots of each flow meter location for the duration of the monitoring period. Surcharging
(flow depth above pipe crown) was observed at flow meter location 2, 3, and 4 during the monitoring period.
For each flow monitoring location, the average daily flow was determined and peak hourly wet weather flow
was calculated. These values are summarized in the following Table 3. Additionally, the average and maximum
depths measured in the i-Tracker data are presented in
Town of Hillsborough
Flow Monitoring Memorandum
Page 3
Hillsborough Flow Monitoring Memo 4
Table 4.
Table 3. Average and Peak Flow Summary
Flow Meter
Location
Average Daily Flow
(gpd)
Peak Hourly Wet
Weather Flow
(gpm)
Peak Hourly Wet
Weather Flow
(gpd)
Peak Factor
1 7,839 38 54,720 7.0
2 27,193 200 288,000 10.6
3 728,666 4137 5,957,280 8.2
4 422,419 1393 2,005,920 4.7
Town of Hillsborough
Flow Monitoring Memorandum
Page 4
Hillsborough Flow Monitoring Memo 4
Table 4. i-Tracker Depth Summary
Depth Gauge Location Average Depth (in) Peak Hourly Depth (in) Surcharged during Peak
Depth?
#3, SAMH562 7.1 43.3 Yes
#6, SAMH1114 8.7 35.6 Yes
#7, SAMH1622 2.2 4.6 No
The flow data analysis shows greater peaking factors for the River PS basin than the Elizabeth Brady PS basin,
which is as expected since the River PS area contains the oldest portions of the system, while Elizabeth Brady PS
basin consists of newer sewer mains. The newer areas are understood to be in better condition, thus less inflow
and infiltration would be expected.
Diurnal Curve Development
The following graphs present the average flow over the course of a 24-hour day. The graphs illustrate a typical
diurnal pattern occurring throughout the flow monitoring locations. A morning and evening peak are observed
in each graph, as well as the lowest flow occurring around 2:00 – 4:00 AM timeframe. The diurnal curves will be
used for input into the extended period hydraulic model that will be analyzed for dry weather and wet weather
conditions.
Figure 1. Flow Meter HB-1 Average Flow
0
5
10
15
20
25
12
AM
1
AM
2
AM
3
AM
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AM
6
AM
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PM
2
PM
3
PM
4
PM
5
PM
6
PM
7
PM
8
PM
9
PM
10
PM
11
PMFlow Rate (gpm)Time
Flow Meter 1 Average Flow
Town of Hillsborough
Flow Monitoring Memorandum
Page 5
Hillsborough Flow Monitoring Memo 4
Figure 2. Flow Meter HB-2 Average Flow
Figure 3. Flow Meter HB-3 Average Flow
0
5
10
15
20
25
12
AM
1
AM
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11
PMFlow Rate (gpm)Time
Flow Meter 2 Average Flow
0
100
200
300
400
500
600
700
12
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1
AM
2
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3
AM
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11
PMFlow Rate (gpm)Time
Flow Meter 3 Average Flow
Town of Hillsborough
Flow Monitoring Memorandum
Page 6
Hillsborough Flow Monitoring Memo 4
Figure 4. Flow Meter HB-4 Average Flow
Calibration Events
The rainfall and flow meter data were reviewed to determine suitable rainfall events for calibration. The
following rainfall events were selected for calibration due to the largest rainfall events that resulted in increased
flows at all the flow meter locations. The rainfall distribution is shown in the flow hydrograph plots included in
Appendix B.
Figure 5. Rainfall Event Summary
Rainfall Dates Total Rainfall Depth (in) Peak Intensity (in/hr) Duration (hrs)
4/30/2020 1.84 0.84 20
5/18-22/2020 5.53 0.44 108
6/10-11/2020 1.73 0.72 30
Note:
1. The values presented above are for the Cemetery PS Rain Gauge.
Summary
In conclusion, the data collected is sufficient to provide a calibrated hydraulic model to better represent wet
weather flow conditions. The flow data analysis shows greater peaking factors for the River PS basin than the
Elizabeth Brady PS basin, which is as expected since the River PS area contains the oldest portions of the system,
while Elizabeth Brady PS basin consists of newer sewer mains. The newer areas are understood to be in better
condition, thus less inflow and infiltration would be expected.
0
100
200
300
400
500
600
700
12
AM
1
AM
2
AM
3
AM
4
AM
5
AM
6
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3
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PM
7
PM
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9
PM
10
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11
PMFlow Rate (gpm)Time
Flow Meter 4 Average Flow
#5, SAMH597
#3, SAMH560
#4, SAMH2449
#8, SAMH1722
#7, SAMH1622
#1, SAMH1250
#2, SAMH1216
#6, SAMH1114
River
Elizabeth Brady
Churton Grove
Stroud's Creek
Cemetery
Lawndale
Dixie Ave
Corbinton Commons
Governor Burke
Rencher St
Cedar Creek
Gatemoore
Patriot's Pointe
Magnolia Place
Cedar Ridge
Nazarene
Timbers TP
Woods Edge Front
Shelton Ct
Woods Edge Back
Coachwood
New Hope
WWTP
Legend
Pump Station Basins
PS
Cedar Creek
Cedar Ridge
Cemetery
Churton Grove
Coachwood
Corbinton Commons
Dixie Ave
Elizabeth Brady
Gatemoore
Governor Burke
Lawndale
Magnolia Place
Nazarene
New Hope
Patriot's Pointe
Rencher St
River
Shelton Ct
Stroud's Creek
Timbers TP
Woods Edge Back
Woods Edge Front
<all other values>
Gravity Sewer Mains
Diameter (inches)
≤6
≤8
≤12
≤18
≤24
Waste Water Treatment Plant
Monitoring Locations
Figure
A-15
Project
No.
2267.001.001
Town of Hillsborough
Pumping Station Basins and Flow Monitor Locations
5/26/2020 North CarolinaOrange Countyµ0 0.50.25 Miles
0
0.1
0.2
0.3
0.4
0.5
0.6
0.7
0.8
0.9
10.00
10.00
20.00
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50.00
60.00
4/27/20205/2/20205/7/20205/12/20205/17/20205/22/20205/27/20206/1/20206/6/20206/11/20206/16/20206/21/20206/26/20207/1/20207/6/20207/11/20207/16/20207/21/20207/26/20207/31/20208/5/2020Rain (in.)Flow (gpm)Date
Flow Meter 1 Flow and Rainfall Data
Flow (GPM)
0.00
1.00
2.00
3.00
4.00
5.00
6.00
7.00
8.00
0.00 0.20 0.40 0.60 0.80 1.00 1.20 1.40 1.60Level (in.)Velocity (fps)
Flow Meter 1 Scattergraph - 8-inch Diameter
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4/26/20205/1/20205/6/20205/11/20205/16/20205/21/20205/26/20205/31/20206/5/20206/10/20206/15/20206/20/20206/25/20206/30/20207/5/20207/10/20207/15/20207/20/20207/25/20207/30/20208/4/2020Rain (in.)Flow (gpm)Date
Flow Meter 2 Flow and Rainfall Data
Flow (gpm)
0.00
5.00
10.00
15.00
20.00
25.00
30.00
35.00
40.00
0.00 0.50 1.00 1.50 2.00 2.50 3.00 3.50 4.00 4.50 5.00Level (in.)Velocity (fps)
Flow Meter 2 Scattergraph - 8-inch Diameter
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1000
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4/26/20205/1/20205/6/20205/11/20205/16/20205/21/20205/26/20205/31/20206/5/20206/10/20206/15/20206/20/20206/25/20206/30/20207/5/20207/10/20207/15/20207/20/20207/25/20207/30/20208/4/2020Rain (in.)Flow (gpm)Date
Flow Meter 3 Flow and Rainfall Data
Flow (gpm)
0.00
10.00
20.00
30.00
40.00
50.00
60.00
70.00
0.00 0.50 1.00 1.50 2.00 2.50 3.00 3.50 4.00 4.50Level (in.)Velocity (fps)
Flow Meter 3 Scattergraph - 21-inch Diameter
0
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1000
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4/26/20205/1/20205/6/20205/11/20205/16/20205/21/20205/26/20205/31/20206/5/20206/10/20206/15/20206/20/20206/25/20206/30/20207/5/20207/10/20207/15/20207/20/20207/25/20207/30/20208/4/2020Rain (in.)Flow (gpm)Date
Flow Meter 4 Flow and Rainfall Data
Flow (gpm)
0.00
10.00
20.00
30.00
40.00
50.00
60.00
70.00
0.00 1.00 2.00 3.00 4.00 5.00 6.00Level (in.)Velocity (fps)
Flow Meter 4 Scattergraph - 18-inch Diameter
I 85
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Preliminary Inquiries
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Development Inquiries
AGENDA ABSTRACT | 1 of 1
Agenda Abstract
BOARD OF COMMISSIONERS
Meeting date: Aug. 23, 2021
Department: Board
Public hearing: No
Date of public hearing: N/A
PRESENTER/INFORMATION CONTACT
Commissioner Mark Bell
ITEM TO BE CONSIDERED
Subject: High importance emails discussion
Attachments:
None
Brief summary:
Check in with board members and staff regarding preferred lines of communication when urgent/emergency
issues arise so that everyone can stay informed, good ideas can be offered and relevant questions can be raised,
yet not overwhelm each other with a high volume/unwieldy amount of communication.
Action requested:
Discuss and provide direction.
ISSUE OVERVIEW
Background information and issue summary:
Please see above.
Financial impacts:
None
Staff recommendation and comments:
For clerk’s use
AGENDA ITEM:
4.B
Consent
agenda
Regular
agenda
Closed
session