Exhibit 1 - Agenda Information SheetCity of Denton
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AGENDA INFORMATION SHEET
DEPARTMENT: Procurement
ACM: Cassey Ogden
DATE: September 17, 2024
SUBJECT
Consider adoption of an ordinance of the City of Denton, a Texas home-rule municipal corporation,
ratifying the expenditure of funds by the City Manager for the emergency repair services of filter #16
underdrain system, including the removal and replacement of the filter media at the Lake Lewisville Water
Treatment Plant for the Water Production Department; and providing an effective date (File 8639 – awarded
to C&C Environmental Services, Inc., in the not-to-exceed amount of $151,800.00). The Public Utilities
Board recommends approval (7 - 0).
STRATEGIC ALIGNMENT
This action supports Key Focus Area: Enhance Infrastructure and Mobility.
INFORMATION/BACKGROUND
The Water Production Treatment Facilities utilize large filters to clean and produce high-quality water as a
key part of the treatment process. Filters typically are constructed of a box-like structure, containing sand,
granular activated carbon (GAC), and an underdrain. The media acts as a barrier against suspended particles
in the water, and the underdrain collects the filtered water for the next process.
The Lake Lewisville Water Treatment Plant (LLWTP) encountered a filter failure on July 26, 2024,
regarding filter #16 and required an emergency repair. Filter #16 was placed out of service due to turbidity
issues and media loss. The City contracted with C&C Environmental Services for the planned project repair
of filter #4 for a similar failure issue. An emergency repair was required for the underdrain system of filter
#16 and to replace the existing media with new media which is vital for the treatment process of the LLWTP.
The repair consists of replacing the latter gaskets and the inspection of the reinstallation of the filter laterals.
Considering the age of the filter media, quality control tests were performed recommending replacement
with new media coinciding with the underdrain system repair.
The LLWTP has 16 filters and during the higher demand of the summer months, all filters must be available
to operate. Without action, the treatment plant will have a significant reduction from 30 million gallons per
day maximum filtration rate to 27.5 million gallons per day with one filter out of service; with two filters
out of service, the maximum filtration rate reduces to 25 million gallons per day at peak flows with a
maintaining constant flow of 23 million gallons per day due to required needed backwashes with the
remaining 14 filters online 24/7. The Water Production Treatment Facilities utilize large filters to clean and
produce high-quality water as a key part of the treatment process.
City Hall
215 E. McKinney Street
Denton, Texas
www.cityofdenton.com
Service/Materials Estimated Cost
Repair of filter #16 underdrain system including the removal and
replacement of the filter media and AWI field services and reports. $138,000
Contingency 10% 13,800
Total Contract NTE Amount $151,800
PRIOR ACTION/REVIEW (COUNCIL, BOARDS, COMMISSIONS)
On September 9, 2024, the Public Utilities Board (PUB) recommended this item to the City Council for
consideration.
RECOMMENDATION
Award the emergency repairs with C&C Environmental Services, Inc., for the emergency repair services of
filter #16 underdrain system including the removal and replacement of the filter media at the Lake
Lewisville Water Treatment Plant for the Water Production Department, in a not-to-exceed amount of
$151,800.
PRINCIPAL PLACE OF BUSINESS
C&C Environmental Services, Inc.
Portsmouth, OH
ESTIMATED SCHEDULE OF PROJECT
Upon procurement, repairs will be made as soon as possible and shall remain effective for a period that may
reasonably be required for the completion of the project.
FISCAL INFORMATION
These services will be funded from Water Production account 630548517.1360.40100. Requisition
#165859 has been entered into the Purchasing software system in the amount of $138,000. The budgeted
amount for this item is $151,800.
EXHIBITS
Exhibit 1: Agenda Information Sheet
Exhibit 2: Declaration of Emergency
Exhibit 3: Contract
Exhibit 4: Ordinance
Respectfully submitted:
Lori Hewell, 940-349-7100
Purchasing Manager
For information concerning this acquisition, contact: Trever Heskett, 940-349-7627.
Legal point of contact: Marcella Lunn at 940-349-8333.