0000231655 - Hudson’s Hope Water Treatment Plant Pre-Filtration Design and Supply Services

This request is for the supply, delivery and installation support of the following equipment for
required temporary (3-4 years) treatment process upgrades at the current Hudson’s Hope Water
Treatment Facility:
• Supply and deliver a filtration system for the pre-treatment of existing well water for the reduction
of hydrogen sulphide gas; iron and manganese. The system shall be capable of treating 1500
cubic metres of water per day and shall have a fully automated backwashing system. Supply
shall include the media vessels; the media; and all control valve equipment for the backwashing
system. Piping will be supplied by others.
• Supply and deliver a sodium hypochlorite injection system to be installed by the Contractor (Clear
Blue Water Systems Ltd.) ahead of the filtration system to oxidize the target constituents and
provide control of biological organisms in the raw water stream.
• All equipment supply and delivery must be coordinated with the Contractor retained to install the
systems – Clear Blue Water Systems Ltd. (CBWS) for effective filtration prior to entering the
existing treatment facility. Coordination shall include assisting with the arrangement of the
equipment, pipe sizing and determination of power requirements and commissioning.
• Suppliers are to submit proposed equipment and media specifications to CBWS for review and
approval by the District of Hudson’s Hope (DoHH) and their treatment plant consultants –
McElhanney. Media specifications shall include statements of expected treatment efficiencies
with similar water, or results of testing completed on water samples. Raw water can be provided
upon request.
• Submissions shall include an equipment layout drawing with inlet, header and outlet piping
requirements to meet the desired flow. A process narrative should be included to ensure that
backwashing cycles are optimized for the required flow capacity. Coordination of the
backwashing control equipment will depend on the classification rating of the treatment space, as
there is also methane gas present in the raw water. Suppliers are to coordinate the locations of
electrically actuated valves accordingly with CBWS.
• Submit calculations for backwashing volumes and requirements for dechlorination if required as
all backwashing effluent is discharged to the adjacent Peace River. Supply and deliver
dechlorinating system for the backwash as required.
The following documentation describes the background information and detailed requirements for the pretreatment
system required to treat the raw well water for DoHH.