2013 Water System Plan, Volume II - Seattle City Clerk's Office - City ...

Chapter 18 Plan Review
request that SPU attend.
DPD issues Building Permits (a type of Construction Permit), which are required for most
construction in Seattle. DPD staff, i.e. planners, plans examiners, site development staff review
private development proposals for compliance with Seattle’s Land Use, Building and Drainage
Codes (see previous page footnote).
18.3.1.3 Side Sewer Permit
DPD issues Side Sewer Permits (a type of Construction Permit). These permits are generally
processed after the Building Permit has been approved and construction is underway. If work is
proposed in the ROW, the Side Sewer Permit must be issued to a Registered Side Sewer
Contractor, Anyone can apply for a Side Sewer Permit if work is solely on private property. Side
Sewer Permits may be issued independently of a Building Permit e.g. side sewer repair.
SPU has contracted with DPD to review Side Sewer Permit plans on SPU’s behalf, and to inspect
the work after the permit has been issued. As-builts (record drawings)are provided to SPU for
inclusion in GIS. SPU is not normally involved in the side sewer permitting process. SPU reviews
and confirms the point of discharge during the Preliminary Assessment and DPD must consult
with SPU in situations where SPU expertise is required. A triggers list has been developed to
provide guidance to DPD on what types of issues SPU requires to be coordinated.
18.3.1.4 Side Sewer Permit for Temporary Discharge (SSPTD)
SPU Plan Review staff reviews temporary discharge requests. The reviewers:
Confirm that the proposed Point of Discharge is to the correct system (drainage vs.
sanitary)
Ensure that the Point of Discharge is acceptable (i.e. the connection is not allowed
directly to a manhole)
Review proposed discharge rate for infrastructure capacity impacts
The Plan Reviewer must balance SPU’s infrastructure needs with the project needs. If the
proposed discharge rates are higher than the standard maximum rate allowed, the Plan
Reviewer must determine that risks to the infrastructure are within acceptable range.
For proposed permanent and/or temporary discharges to the sanitary or combined sewer
system, SPU may coordinate with King County Industrial Waste Section (KCIW) to confirm the
allowed discharge flow rate. The Plan Reviewer communicates the allowed discharge flow rate
to the project contact, and coordinates with the KCIW staff to have SPU conditions written into
the King County Industrial Waste Permit.
Once SPU and KC are satisfied, the SPU Plan Reviewer informs the project contact and the DPD
Plan Reviewer that the Side Sewer Permit for Temporary Discharge may be applied for and
issued.
Note: At the time of publication, a new Dewatering Director’s Rule is being finalized and the
corresponding processes may change.
SPU Design Standards and Guidelines 18-5