Irrigation_Specs.pdf

This is an irrigation specifications document for the City of Hayward's Route 238 Landscape Maintenance project, establishing approved components and manufacturers for irrigation system installation and maintenance. The specifications detail required equipment including backflow preventers (Febco 825 YA or Y models), approved piping materials (brass pipes or K copper, excluding galvanized), valves (Rainbird PESB scrubber models), tree bubblers (Rainbird PESB-PRS-D or Netafim options), master valves (Superior normally closed models), sprinkler heads (Toro 570 prx in 4", 6", and 12" pop-ups, Hunter I-20, or Rainbird 1400 series), drip irrigation and components (Netafim), flow sensors (Calsense per specifications), controllers (Calsense 3000E or Rainmaster Sentar non-central controllers), and gate valves (Nibco T113-K per line size). The document mandates that all piping connections to backflow prevention devices utilize brass or K copper materials. Contact information for City communication compatibility questions is provided through Jennifer Gregoris at (925) 325-9368.

The specifications establish a prescriptive list of approved manufacturers and part numbers to ensure system standardization and compatibility across the landscape maintenance project. By limiting component selections to specific approved models, the City ensures consistent performance, maintenance standardization, and integration with existing infrastructure. This approval-based approach simplifies procurement, reduces compatibility issues, and facilitates long-term maintenance and replacement protocols for the extensive landscape irrigation systems covering approximately 767,103 square feet across multiple city thoroughfares and facilities.