Engineering – Water Checklist
Plan Review
- Identify pipe size, length, & material for all new and existing public water main and service lines.
- Zinc coated ductile iron (ZDI) is required for all new public water mains.
- Dimension water from curbs, other parallel utilities, and within easements (6’ from curb North/East, 10’ from sewer & 5’ from all other utilities and centered within easement).
- Dimension right-of-way, private and/or public easement widths.
- All valves and fittings must be identified and shown on plan view (notes only will not suffice).
- Notes must call out valve sizes and fitting sizes.
- All connection types shall be MJ.
- All fire hydrants and fire protection services shall be MJxFLG.
- Identify and show all existing fire hydrants as well as proposed hydrants and associated connections, materials, and fittings.
- All joints from the hydrant to the tee must be mechanically restrained.
- Provide mechanical joint restraint lengths.
- For pipe 12” or larger, restrain ALL joints.
- All sites located within earthquake high hazard & liquefaction zones are required to mechanically restrain all pipes, joints, and fittings regardless of pipe size.
- Address any potential conflicts with water infrastructure by showing other utilities, structures, trees, driveway locations, etc.
- Callout and dimension all utility crossings with existing and proposed water by identifying vertical and horizontal separation.
- Show and identify all water main crossings on sewer and/or stormwater profiles, regardless of water main size.
- Profiles for proposed water main specifically are required on all 12” and larger mains.
- Call out all existing and proposed blow-off assemblies as either standard or oversized per W-14 and W-15.
- Combination ARV required at all high points for water main 12” or larger.
- Show and identify all existing and proposed ARVs.
- Thrust blocks required on tapping tees and connections to the end of existing main shown on plan view and called out in notes section.
- When horizontal and/or vertical pipe deflection is proposed, show points of deflection, and deflection angle or radius per manufacturer’s specifications. Show all pipe segments, points of deflection, and deflection angles in all profiles.
- Identify all existing and proposed water meter size (including deduct and/or irrigation meters).
- Show location on plan view.
- Each building shall be metered separately.
- Identify all existing and proposed backflow size and type (must be WA State approved).
- Show location on plan view – backflow devices must be located outside near water meter unless otherwise approved by the City of Vancouver Water Quality Group.
- RPBA required on all uses identified under Table 13 of WAC 246-290-490.
- RPBA is required on all sites that have access to auxiliary water supplies (i.e. wells).
- Identify existing wells and proposed retention or demolition of well.
- Retained wells may only be used for irrigation and RPBA will be required on all existing and proposed domestic services.
- See the following link for a water design sample plan. Designing your civil plans according to the Water Example Drawing will assist in reduction of preventable redlines – City of Vancouver Water Example Drawing.
Permit Center Engineering
citycddeng@cityofvancouver.us
360-487-7804
