Exhibit 1 - Agenda Information SheetCity of Denton
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AGENDA INFORMATION SHEET
DEPARTMENT: Procurement & Compliance
CFO: Antonio Puente, Jr.
DATE: January 28, 2020
SUBJECT
Consider adoption of an ordinance of the City of Denton, Texas, a Texas home-rule municipal corporation,
authorizing the City Manager to execute a public works contract with Archer Western Construction, LLC,
for the construction of the Hickory Creek Detention Facility and Pecan Creek West Peak Flow Pump Station
for the Wastewater Department; providing for the expenditure of funds therefor; and providing an effective
date (RFP 7061 – awarded to Archer Western Construction, LLC, in the not-to-exceed amount of
$14,458,000). The Public Utilities Board recommends approval (5 - 0).
RFP INFORMATION/BACKGROUND
Like most municipal wastewater collection systems in the U.S., the City of Denton experiences large
increases in flow during and immediately following large wet weather events due to infiltration and inflow.
The peak flow rates for these large rain events can reach 4-6 times the average daily flow depending on the
size of the rain event and the antecedent moisture conditions. Denton’s primary trunk interceptors were
built between the 1960s and 1980s and were not designed to handle these infrequent, large peak flows. As
a result, Denton has been in the process of upgrading the size of its trunk interceptor system since the early
2000s.
The City utilizes a dynamic hydraulic computer model to simulate the impact of large rain events on the
flow rates within the collection system for both present and future conditions. The primary design storm is
a 5 year, 24-hour storm conforming to a SCS Type II storm. From the results of the design storm on the
model, the City has developed a series of capacity enhancement projects which should serve the capacity
requirements of the collection system out to 2033.
One option that was repeatedly explored during the development of the capacity enhancement program was
the potential use of in-system storage facilities to detain or dampen the peak wet weather flows. In-system
storage is an excellent cost-saving method for collection system capacity enhancement when it can be done,
as it can reduce or eliminate the need for expensive downstream interceptor improvements that would
otherwise be required to convey the peak flow to the treatment facility. For the most part, in-system storage
was not an option far from the Pecan Creek WRP, primarily due to the public opposition that comes with
siting the storage facilities close to existing residential and commercial properties.
One location emerged, however, that was sufficiently remote from existing residential and commercial
neighbors and was also a poor location for future development. This site hereafter referred to as the Hickory
Creek Detention Facility, is located in Denton’s southernmost collection system basin, the Hickory Creek
basin. The Hickory Creek Detention Facility is approximately 1000 feet from the nearest residential
City Hall
215 E. McKinney Street
Denton, Texas
www.cityofdenton.com
neighborhood and is screened by a fairly thick wood. Additionally, the Hickory Creek Detention Facility is
located between a railroad and the Hickory Creek which renders it impractical to develop. The owners of
the land were willing to sell at a reasonable price to the City knowing that the City was likely to be their
best offer.
The Hickory Creek Detention Facility should save the City approximately 9 million dollars. Without it, the
City would have to convey the peak flow 9 miles to the South Peak Flow Basin which is an open-air
detention pond located on the site of the Pecan Creek WRP. Conveying the peak flow would require
upsizing over 4 miles of interceptor and 2 miles of force main, upgrading the existing Hickory Creek Lift
Station from an 11 mgd lift station to a 36 mgd lift station, and expanding the South Peak Flow Basin by 6
million gallons. Additionally, new easements located in developable land would be required, which would
escalate the cost. Finally, building the detention facility will not only save money, but it will also reduce
the impact on public and private land by limiting construction activity to the facility site instead of being
spread over 6 plus miles through residential and commercial neighborhoods.
The second portion of this project is the Pecan Creek Water Reclamation Facility West Peak Flow Pump
Station. This new pump station will intercept peak flows from the Pecan Creek Basin and divert them to
existing storage basins on-site, where the flow will be gradually introduced to the treatment process. This
process is similar to that of the South Peak Flow Basin and Pump Station.
Requests for Proposals were sent to 440 prospective contractors for these services. In addition,
specifications were placed on the Materials Management website for prospective contractors to download
and advertised in the local newspaper. Two (2) proposals were received and evaluated based upon published
criteria including past performance and experience, qualifications of the respondent and key personnel
available, indicators of probable performance, and price. Based upon this evaluation, Archer Western
Construction LLC was ranked the highest and determined to be the best value for the City.
NIGP Code Used for Solicitation: 912
Notifications sent for Solicitation sent in IonWave: 440
Number of Suppliers that viewed Solicitation in IonWave: 17
HUB-Historically Underutilized Business Invitations sent out: 33
SBE-Small Business Enterprise Invitations sent out: 166
Responses from Solicitation: 2
PRIOR ACTION/REVIEW (Council, Boards, Commissions)
On January 13, 2020, the Public Utilities Board (PUB) recommended this item to the City Council for
consideration.
RECOMMENDATION
Award a public works contract to Archer Western Construction, LLC for the construction of Hickory Creek
Detention Facility and Pecan Creek West Peak Flow Pump Station in the not-to-exceed amount of
$14,458,000.
PRINCIPAL PLACE OF BUSINESS
Archer Western Construction, LLC
Chicago, IL
ESTIMATED SCHEDULE OF PROJECT
This project will be started upon approval with a completion date within 480 days.
FISCAL INFORMATION
The project will be funded from Hickory Creek Detention Facility account numbers 640163541.1360.40100
and 640163545.1360.40100. Requisition #144926 has been entered into the Purchasing software system in
the amount of $14,458,000. The finance and legal departments are evaluating the Utility’s request to
partially fund the project using Impact Fee Revenue.
EXHIBITS
Exhibit 1: Agenda Information Sheet
Exhibit 2: Pricing Evaluation
Exhibit 3: LLC Members
Exhibit 4: Ordinance and Contract
Exhibit 5: Presentation
Respectfully submitted:
Lori Hewell, 940-349-7100
Purchasing Manager
For information concerning this acquisition, contact: Frank Pugsley at 940-349-8086.
Legal point of contact: Mack Reinwand at 940-349-8333.