Laserfiche WebLink
Task 1 - Market Assessment <br /> <br />Consultant will collect, review, evaluate and summarize specific irrigation demand and water quality <br />information to assess the potential recycled water market for landscape irrigation in the Redwood Shores <br />area. Concepts for future uses in Redwood Shores such as building cooling, industrial, decorative <br />fountains, car washes, or environmental water will also be evaluated. The potential for an expanding <br />future market beyond Redwood Shores will be developed under Subtask 1.4 to support sizing and phasing <br />of facility alternatives under subsequent tasks. <br /> <br />Subtask 1.1 - Field Reconnaissance <br /> <br />Field reconnaissance will be performed to observe how existing landscapes are responding to irrigation <br />under your First-Step Recycled Water Project; and to review the plantings, soil types, irrigation methods, <br />and water management strategies used at selected potential landscape irrigation sites. Consultant will <br />develop screening criteria, perform initial reconnaissance and recommend specific sites for more detailed <br />review that are representative of the overall landscape types in the Redwood Shores area. Site-specific <br />information will be collected and inventoried using photographs and a data collection form. The City will <br />provide user point of contact information and approve the selected sites, prior to performing site specific <br />fieldwork. <br /> <br />Subtask 1.2 - Perform Water Quantity Market Assessment <br /> <br />Consultant will use a variety of available data sources to develop, refine and establish potential irrigation <br />demands. Average annual and peak demands will be developed for all potential landscape customers in <br />the Redwood Shores area and a potential maximum service scenario will be identified. The evaluation <br />will consider climatological and site-specific conditions, such as wet-dry year cycles and variations in <br />landscape design, plant selection and maturity. A comparison between existing and future demands will <br />be made considering the change in water source and potential irrigation management strategies. <br /> <br />Subtask 1.3 - Perform Water Quality Market Assessment <br /> <br />Consultant will provide an assessment of water quality issues for potential landscape uses based on <br />available information and limited field reconnaissance work. The assessment will include an overview of <br />the inter-relationship between water quality, soil, landscape plantings and turf grass, irrigation system <br />design parameters, and site and water management. Key water quality criteria for urban landscape use <br />will include as a minimum: <br /> <br /> · General - pH, Electrical Conductivity, Total Dissolved Solids <br /> Public Perception - apparent color and odor threshold, health concerns <br /> <br /> · Soil Binding Potential - Adjusted Sodium Adsorption Ratio <br /> <br /> · Plant Tolerance Sensitivity - Sodium, Chloride, Boron, and Bicarbonate <br /> <br /> · Plant Health - Nitrogen, Phosphorus, Calcium, Magnesium and Potassium <br /> <br />Consultant will review historic water quality information for San Francisco's Hetch Hetchy potable water <br />supply, and SBSA's wastewater effluent and recycled water source. This information will be used to <br />prepare a summary matrix showing existing water quality parameters vs. Title 22 regulatory requirements <br />for various uses and generally accepted aesthetic and horticultural standards. <br /> <br />u:~lyflestpi active\h2o planning\k) recycled/contra¢lscopeofservicesdrafBa.doc 2 Redwood Shores <br /> Recycled Water Feasibility Study <br /> <br /> <br />