SynC · Topic
Underground
These are the standards in SynC Standards that cover Underground. Each one is a complete, plain-language specification: the scope it applies to, the requirements that govern it, and a structured equipment datasheet listing the values a project has to decide, with the standards each is verified against. All of it is written and maintained by SynC, free to read without an account, and published under CC BY 4.0.
A standard usually carries several topics, so most of the entries below also appear under neighbouring subjects. The topics each one carries are listed on its own page.
Standards
- Landscape Irrigation
Underground automatic landscape irrigation on commercial, institutional, industrial, campus, and multi-family sites, from the irrigation point of connection through the mainline, isolation and zone control valves, the master valve and flow sensor, lateral piping, spray bodies and gear-driven rotors, drip and subsurface drip, the controller with its rain, freeze, flow, and soil moisture sensors and its field wiring, sleeving under paving, irrigation-specific pipe zone and cover requirements, hydrostatic and coverage testing, controller programming, winterization, record documents, warranty, and spare parts. Read alongside the irrigation plan, legend, zone schedule, and details, which carry the head and emitter layout, spacing, nozzle assignments, zone flows and pressures, pipe sizes, and routing this standard defers to them.
- Site Utilities
Exterior underground wet and dry site utilities for commercial, institutional, and industrial building projects, beginning 5 feet outside the building footprint and extending to the point of connection at the public main, meter, or utility owner's facility. Covers the site domestic and fire water service and on-site water distribution (ductile iron and PVC pressure pipe, valves, hydrants, service fittings, thrust restraint), the site sanitary sewer (gravity collection mains and laterals, and pressurized force mains and low-pressure sewer), and the underground dry-utility infrastructure for electrical and telecommunications service (direct-buried and concrete-encased duct banks, conduit, and manholes/handholes). Also covers the common trenching, bedding, embedment, backfill, separation, tracer-wire and marking-tape locating, pressure and leakage testing, deflection and air testing, and water-main disinfection that apply across these systems.