Flow-monitoring services

Tender description

Yorkshire Water is looking to execute specialist monitoring work on (but not limited to) Yorkshire’s urban drainage and river networks for the purpose of the following outcomes: — risk based drainage area planning; — water quality assessments; — drainage and wastewater management plan; — Options Modelling; — operational scenario planning; — water framework directive flow investigations. Fulfilment of several data collection efforts to support the model builds for solutions including but not limited to the following studies: — DAP/UPM/DWMP: sewer depth and velocity monitoring (flow monitoring), depth loggers, pump run time meters, rain gauges, the associated planning and management of the flow surveys, working in close collaboration with the modelling consultants. There will be a requirement to serve private land/NRSWA notices where applicable to install the equipment. — UPM and WFD: river flow monitoring; river level gauging; sondes with probes for ammonia, DO, SS, temperature and pH auto-samplers for BOD, ammonia, temperature and pH; Necessary equipment for the measuring of sediment oxygen demand; Rain gauges. The model outputs will all be required to comply with the specifications defined in the contract as well as adhere to the market standards as defined by: — UDG code of practice for the hydraulic modelling of urban drainage systems, UDG competency framework, UDG rainfall guide, WaPUG user notes, WaPUG integrated urban drainage modelling guide and WaPUG guide to quality modelling of sewer systems, — WRC A guide to short term flow surveys of sewer systems, — UPM Manual, Version 3.1; — YW’s Integrated Catchment Modelling (ICM) approach; — Relevant environment agency guidance. Therefore the data collected for these models must also be compliant. Health and Safety CDM regulation must also be adhered to when executing these works; it has been required that the contractor will undertake the role of the designer and principle contractor for the urban drainage, river flow and water quality monitoring work.