Amendment No. 3

Docusign Envelope ID: 86A29CC3-1498-8AB8-80CC-OF060FD6B527
>
6 HANDLER
oe
arizona
ay
City Clerk Document No.
City Council Meeting Date:
AMENDMENT TO CITY OF CHANDLER AGREEMENT
IRON SALT FOR ODOR & CORROSION CONTROL
CITY OF CHANDLER AGREEMENT NO. WW3-885-4614
THIS AMENDMENT NO. 3 (Amendment No. 3) is made and entered into by and between the City of
Chandler, an Arizona municipal corporation (City), and US Peroxide LLC. dba USP Technologies, a
Delaware corporation (Contractor), (City and Contractor may individually be referred to as Party and
collectively referred to as Parties) and made _ 2026 (Effective Date).
RECITALS
WHEREAS, the Parties entered into an agreement for a turnkey non-hazardous iron salt product and
dosing station as more fully described in the Agreement; and
WHEREAS, the term of the Agreement was September 21, 2023 through September 20, 2024, with the
option of up to four one-year extensions; and
WHEREAS, the Parties wish to exercise the third option through this Amendment to extend the
Agreement for six (months),
AGREEMENT
NOW THEREFORE, the Parties agree as follows:
1. The recitals are accurate and are incorporated and made a part of the Agreement by this
reference.
2. Section Ill is amended to read as follows: The Agreement is extended for a six-month period
September 21, 2026 through March 20, 2027.
3. Section IV is amended to read as follows: The City will pay the Contractor the per unit cost set
forth in Revised Exhibit B of the original Agreement, which is incorporated into and made a part
of this Amendment No. 3 by this reference. Total payments made to the Contractor during the
term of this Amendment No. 3 will not exceed $ 350,000.00.
Page 1 of 3

Docusign Envelope ID: 86A29CC3-1498-8AB8-80CC-OFO060FD6B527
4. All other terms and conditions of the Agreement remain unchanged and in full force and effect.
If a conflict or ambiguity arises between this Amendment No. 3 and the Agreement, the terms
and conditions in this Amendment No. 3 prevail and control.
IN WITNESS WHEREOF, the Parties have entered into this Amendment on the Effective Date.
FOR THE CITY FOR THE CONTRACTOR
Nordow. Butler
By: By:
VP & General Manager, USP Technologies
Its: Mayor Its:
APPROVED AS TO FORM:
By:
City Attorney qo
ATTEST:
By:
City Clerk
Page 2 of 3

Docusign Envelope ID: 86A29CC3-1498-8AB8-80CC-OFO060FD6B527
REVISED EXHIBIT B TO AGREEMENT
COMPENSATION AND FEES
Fees can be laid out as cost per equipment, set-up, hauling, and chemical costs. It is preferred to have
the cost be all included in the cost per gallon delivered.
o Chemical Costs - Monthly usage estimate of 200 gpd or more
(e) Equipment Costs - Monthly facility fee per system
o Total Labor Costs - Mobilization fee per system
Item Description UOM Amount
Chemical Costs (SulFeLox product) | Per Gallon S 7.55
Month Facility
Equipment Costs Fee/System S N/A
Labor Costs Lump Sum S N/A
Pricing is comprehensive in nature and includes supply of:
Supply of chemicals necessary for support of the odor control program, specifically SulFeLox
buffered iron solution
USP-7,800-gallon double-walled tank
Duplex pump skid specifically designed for SulFeLox product
Fully integrated Advanced Dosing Control System for 24hr dose profiling
All chemical suction and discharge piping, valves, etc. to the treatment process, including new fill
line at Lone Butte Diversion Structure.
ChemWatch ACS control system for remote monitoring and dosing control of the system
Equipment mobilization, installation, start-up, and maintenance
Initial on-site survey to determine peroxide/sulfide reaction rates and H25 removal efficiency
Project management, applications & process optimization services
Seasonal program optimization and equipment maintenance services
Chemical safety training for site personnel
Inventory and delivery management (ACS controller)
All necessary sampling (liquid and vapor) labor and installation
Weekly program reporting and documentation (USP Vista)
SulFeLox program pricing at $7.55/gal delivered in full truckloads of 44k Ibs.
Page 3 of 3