Agmt18 ADS Environmental Services

Browse Search

Deliverable: Consultant shall submit documentation of site reconnaissance and final flow monitoring sites to the City. Task 2. Project Kickoff Meeting: Consultant shall prepare the Kickoff Meeting Agenda that includes, but not limited to, the results of site reconnaissance and recommendations, the project objectives, understanding and approach and review of past flow monitoring projects as applicable and provided by the City. Deliverable: Consultant shall meet with City staff and submit Meeting Minutes for the Kickoff Meeting. Task 3. Installation / Calibration / Maintenance / Removal of Flow Monitors: The flow meters will be area -velocity type capable of measuring flows and flow depths under surcharge conditions. Pipe diameters will range from approximately 10 to 60 inches. Rain gauges will be tipping bucket type capable of recording to 0.01 inches. Equipment alternatives may be made by the Consultant with review and approval by the City. The flow meters and the rain gauges shall be installed at the approved sites and visited weekly as needed for sites that have no wireless communication during the monitoring period. For sites with wireless communication, data shall be analyzed using FlowView or other City approved upgraded web -based data platform (provided by the Consultant) on a regular basis, at least twice a week. If the meter is malfunctioning, the Consultant shall respond within 72 hours of first notice, repair or replace the meter/sensors and get the site running at optimal performance. In the event, that one or more flow meter fails to provide usable data during a significant storm (> 0.5 inches of rainfall in 24 hours), the Consultant shall extend the monitoring period for that failed site(s) for up to two (2) weeks at no additional cost to the City. The Consultant shall give the City weekly service notifications. The Consultant shall promptly notify the City of any malfunctions or loss of data. Field calibration data (independent measurements of flow depth and velocity) shall be collected throughout the monitoring period for each meter to verify monitor accuracy over a range of flow depths. Field calibration points shall be uploaded to FlowView or other City approved upgraded web base platform. Starting with future seasons (2019/2020 and afterwards), after installation of the flow meters, the City can initiate the monitoring period of 60 days within four weeks after the installation of all flow meters, increasing the likelihood of catching more storm events. The City will give the Consultant five (5) working days of notice to initiate the start of the monitoring period. Once the monitoring period has started, it shall continue for the entire monitoring period. The flow data will be collected at 5 -minute intervals and reported at 15 -minute intervals. The meters will be interrogated daily and raw data uploaded to FlowView or Page 10 or 12 REV: 11-08-18 PR ATTY/AGR.2018.261/ADS Environmental Services