1. Spring Start-Up: The DPW Commissioner or Designee may direct the Contractor to turn on irrigation systems and inspect for proper operation when the Department of Public Works does not have the available resources to do so. a. All irrigation systems will be fully operational no later than April 1 of each year. b. Manually run each zone and verify adequate water flow and coverage, adjusting individual sprinkler head spray patterns as necessary. c. Clean any screens, filters and strainers and flush as necessary. d. Reset existing sprinkler heads or remove grass obstructions. e. Program irrigation timer/controller in consultation with the DPW Commissioner or Designee. Verify automatic operations of valves via the timer/controller. f. Verify proper operation of any rain or system sensors, if present. g. Identify and document any leaks and advise the DPW Commissioner or Designee on system repair and replacement needs. h. The Contractor shall not begin any repairs identified during Spring Start-Up without prior written authorization from the DPW Commissioner or Designee. 2. Winterization: The DPW Commissioner or Designee may direct the Contractor to decommission irrigation systems for the winter season when the Department of Public Works does not have the available resources to do so. a. All irrigation and pressurized water systems will be fully winterized by November 15 of each year. b. Drain all system components including, but not limited to, lines, piping and spigots. Blow-down with compressed air as needed to prevent freeze damage. c. Identify and document any leaks and advise the DPW Commissioner or Designee on system repair and replacement needs. 3. On-Call Irrigation Repairs a. The Contractor will perform on-call repair services to irrigation systems at various locations throughout the City of Somerville upon request. b. The Contractor will begin on-call repairs within twenty-four (24) hours of receiving a written service request from the DPW Commissioner or Designee. c. The Contractor will provide written quotes for any and all work costing over $9,999, according to the hourly labor and supply rates included on the Price Form. Quotes will be presented to the City, in writing, no more than two (2) business days after the needed repair is identified. d. The DPW Commissioner or Designee must authorize any and all work in writing before work can begin. The Contractor will not begin any work that has not been authorized in writing by the DPW Commissioner or Designee, and for which no approved Purchase Order has been issued.
