Please also refer to Denver Water Engineering Standard Details: 67, 68
- For tap, service line and meter installation details, please see “Helpful Hints to Pass Meter Inspections.”
- Stop-and-waste valve must be 4.5- to 6-feet deep.
- Approved Reduced Pressure Backflow Prevention Assembly (RP BFPA) must be installed 5 feet downstream from the meter pit/vault, or a maximum of 10 feet with the use of a stop-and-waste valve.
- RP BFPA must be at least 12 inches above the concrete pad (not shown; located inside enclosure).
- RP BFPA enclosure (heated or non-heated), with service line address posted.
- Drain valve/control valve must be a maximum of 2 feet downstream of RP BFPA.
- Concrete pad must be 4 inches thick. Top of concrete slab must be 1 inch above finished grade.
- Branch lines for domestic use, as outlined in the Denver Water Engineering Standards (see Chapter 5), are not allowed off irrigation service lines.
- For all service lines 2 inches and smaller, service line material type must be installed, as required in Denver Water Material Specifications (MS-24), to the upstream side of the stop-and-waste valve. Once downstream of the stop-and-waste valve, service line material type must be provided as required in Denver Water Standard Details (Sheet 68).