53093281209_SOW.pdf

SCOPE OF WORK

DESIGN AND CONSTRUCTION OF STEEL STRUCTURE AND ROOF FOR THE BELT

PRESSES WORKING AREA

1. GENERAL:

Provide all labor, material, tools, equipment, and services for the design and construction of new steel structure and roof for the belt press area at the Nogales International Wastewater Treatment Plant (NIWTP) located at 865 Rio Rico Industrial park, Rio Rico, AZ.

2. BACKGROUND:

The US International Boundary and Water Commission (USIBWC) operates and maintains the Nogales International Wastewater Treatment Plant (NIWTP) in Rio Rico, Arizona. The NIWTP currently treats approximately 17 million gallons per day of raw sewage entering from Nogales, Mexico and Nogales, Arizona.

The process includes a belt filter press (BFP) system designed to dewater digested sludge converting it from a liquid to a solid cake, and reducing the weight of the materials that must be hauled for disposal.

The belt presses system consists of two belt presses currently contained within a steel columns and trusses structure with a fabric roof and open sides (approximately 30ft x 70 ft floor area and 16 ft. height). During rainy periods and freezing temperatures at certain times of the year the operation of the presses is compromised by exposure to those elements.

In order to avoid compromising operation of the belt presses by rain and freezing temperatures, the NIWTP intends to construct a new roofed steel structure over the belt press area.

3. SCOPE OF WORK

a) Vendor shall provide complete design/build services as necessary to design and install a new canopy over the existing Belt Presses working area. This canopy shall be a roof only with no wall sheeting. Contract shall include all design, construction, and any special inspections required by the design. IBWC shall pay for any and all plan review and permitting costs, but the vendor shall be required to submit for and obtain required permits.

b) Carry out all site visits as necessary to fully understand existing conditions. As built drawings will be provided, but design/build vendor shall field verify all drawings dimensions and conditions.

c) Remove existing steel and fabric structure and haul away. Vendor shall be required to remove all existing lights and pressure washer, salvage temporarily, and re-install.

Contractor shall document all existing circuiting prior to removal and re-install

k) Upon award, vendor shall provide a complete schedule of events prior to commencement and submit it to mwc for review and approval.

4. PERFORMANCE PERIOD

Work shall be completed no later than 140 calendar days from contract award

5. SITE ACCESS:

The NIWTP is a restricted access facility and access to the site must be in accordance with usmwc procedures. Currently all visitors and contractors are escorted by usmwc personnel.

6. WORK HOURS:

The NWTP facility working hours are from 7:30 AM to 4:00 PM local time, Monday to Friday except for Federal Holidays. However, the USffiWC is open to accommodate extended hour or days based on the approved construction schedule and other factors deemed pertinent

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