A. 
When a storm drainage report is required, it must include any relevant data from the City comprehensive storm water plan.
B. 
The Leach Creek and Chambers Creek Drainage Basins are hereby designated as conservation flow control areas as defined in the KCSWDM.
C. 
The Morrison Pothole Drainage Area (subbasin within the North Day Island Drainage Basin) is hereby designated as a flood problem flow control area as defined in the KCSWDM.
D. 
All other drainage basins are hereby designated as basic flow control areas as defined in the KCSWDM.
E. 
Certain portions of the storm system on 27th Street West within the Day Island Waterway Basin have been identified as a conveyance system nuisance problem (Type 1 downstream problem) as defined in the KCSWDM. Additional flow control, as identified in the KCSWDM, or system improvements are required for development projects that are tributary to the deficient portions of the system.
F. 
The Crystal Springs Creek Drainage Basin has been identified to have a severe erosion problem (Type 2 downstream problem) as defined in the KCSWDM.
G. 
For the purpose of rainfall modeling, the City of University Place will be considered to have the same rainfall characteristics as the City of Federal Way.
H. 
Low impact development design techniques shall be incorporated into storm drainage system designs when feasible in accordance with the Department of Ecology Stormwater Management Manual for Western Washington and the King County Surface Water Design Manual.
(Ord. 395 § 3, 2003; Ord. 518 § 1, 2008; Ord. 531 § 1 (Exh. A), 2008; Ord. 679 § 1 (Exh. A), 2016)
All workmanship and materials shall be in accordance with the UPMC, KCSWDM, King County Road Standards, and the Standard Specifications.
(Ord. 395 § 3, 2003; Ord. 518 § 1, 2008)
Roof downspout systems that tie into storm drainage facilities shall be constructed in accordance with the plumbing code as adopted by UPMC Title 14 and the following criteria:
A. 
Connections to the storm drainage facility must be made at a catch basin. Connections made in the right-of-way or public easement require a right-of-way permit.
B. 
Roof downspouts systems installed in conjunction with work performed under a building permit will be administered under that permit.
(Ord. 395 § 3, 2003; Ord. 518 § 1, 2008)
All new and modified storm drainage facilities will be mapped on the University Place G.I.S. inventory system. The storm drainage inventory fee to be adopted shall be paid by the applicant at the time of permit issuance.
(Ord. 395 § 3, 2003; Ord. 518 § 1, 2008; Ord. 555 § 1, 2009)
Operation and maintenance of all drainage facilities is the responsibility of the applicant or property owner, except for those facilities for which the City assumes operation and maintenance responsibility as described below.
A. 
Drainage Facilities to Be Maintained by Private Parties.
1. 
Prior to permit issuance, the applicant shall be required to record a storm drainage maintenance agreement and restrictive covenant with the Pierce County Auditor. The form for this document is available at the City of University Place permit counter. The Operation and Maintenance Manual, as described below, will be included as an attachment to the agreement.
2. 
All privately owned drainage facilities must be maintained as specified in the King County Surface Water Design Manual. A copy of the Operation and Maintenance Manual submitted as part of the permit application shall be retained on site and shall be transferred with the property to any new owner. The property owner(s) shall keep a record of all maintenance activity indicating when the maintenance occurred and where waste was disposed of. These records shall be available for inspection by the City. The City may inspect all privately owned drainage facilities for compliance with these requirements. If property owner(s) fail to maintain their facilities, the City may issue a written notice specifying required actions. If these actions are not performed in a timely manner, the City may enter the property to perform the actions needed. The property owner is responsible for the costs incurred by the City. In the event an imminent hazard to public safety or the environment exists, written notice may not be required. Actions performed by the City on privately owned drainage facilities do not constitute an official assumption of operation and maintenance of these facilities.
3. 
An easement must be recorded granting right-of-access to the City for all storm facilities in accordance with Chapter 13.10 UPMC. The easement must also be depicted and described on the face of the plat, short plat, final development plan, or binding site plan.
B. 
Drainage Facilities to Be Maintained by the City.
1. 
Drainage facilities to be owned and operated by the City must be located in a tract or right-of-way dedicated to the City. Access roads serving these facilities must also be located in the tract or right-of-way and must be connected to an improved public road right-of-way. Any dedications shall be in conformance with Chapter 13.10 UPMC.
2. 
The City will provide written notification to the applicant, officially assuming maintenance and operation of these facilities only after each of the following has been met:
a. 
The Design Engineer has submitted a certification that the work has been completed per the approved design. The certification shall be as prescribed in UPMC § 13.05.820.
b. 
The City has accepted a maintenance financial guarantee from the applicant or property owner as prescribed in Chapter 13.05 UPMC, Article VI.
c. 
The City has issued a written, final approval of the constructed facility to the applicant or property owner.
d. 
A minimum of 85 percent of the homes in the development have been occupied.
e. 
All of the public improvements required to be constructed by the applicant have been completed and accepted by the City.
f. 
The storm drainage system is free of all sediment and debris.
(Ord. 395 § 3, 2003; Ord. 518 § 1, 2008)