17-105489-Water Certificate of Availability-11-12-2021-V2Woodbridge Business Park wtr swr.docx (Form Update 3/13/20) Page 1 of 4
WATER CERTIFICATE OF AVAILABILITY
Lakehaven Water & Sewer District – Development Engineering Section
31623 – 1st Ave S PO Box 4249 Federal Way, WA 98063-4249
Email: DE@Lakehaven.org Telephone: 253-945-1581 or 253-945-1580
This certificate is intended to provide the applicant, land use agencies &/or public health departments with
information necessary to evaluate development proposals. Lakehaven Water & Sewer District, at its sole
discretion, reserves the right to delay, or deny, water service based upon capacity &/or supply limitations
in Lakehaven’s or Other Purveyor’s system facilities.
Proposed Land Use: Building Permit-SFR () Building Permit-MFR () Building Permit-Other
Subdivision () Short Subdivision () Binding Site Plan
Boundary Line Adjustment Other (specify/describe) Land Use Process IV
Tax Parcel Number(s): 162104-9013, -9030, -9056 Site Address: 32901 Weyerhaeuser Way S LWSD GIS Grid: L-09/M-09/L-10
Ex. Bldg. Area to Remain: 480,000+/- sf New Bldg. Area Proposed: 971,390+/- sf
WATER SYSTEM INFORMATION
1. Water service can be provided by service connections to existing 12” &/or 16” diameter water mains that are on the site
(1621049013, 12”) or approximately 30+/- (16”) feet from the site.
2. If additional onsite fire hydrants required, water service for the site will require an improvement to LWSD’s water
distribution system of:
a. 30+/- feet of 12” diameter water main to reach the site; and/or
b. The construction of a water distribution system on the site; and/or
c. A major portion of LWSD’s comprehensive water system plan would need to be implemented and/or
constructed; and/or
d. Other (describe): LWSD Developer Extension (DE) Agreement required.
3. a. The existing water system is in conformance with LWSD’s Comprehensive Water System Plan.
b. The existing water system is not in conformance with LWSD’s Comprehensive Water System Plan and an
Amendment to this Plan will be required. This may cause a delay in issuance of land use approvals or permits.
4. a. The subject property is within the corporate limits of Lakehaven Water & Sewer District, or has been granted
Boundary Review Board approval for extension of water service outside of LWSD’s water service area.
b. Annexation or Boundary Review Board approval will be necessary to provide service.
5. Water service is subject to:
a. Payment of connection charges (to be determined by LWSD);
b. Proof or reservation of easement(s) as required by LWSD;
c. Other: LWSD Service Connection application required, for any new/modified service connection. If applicable,
LWSD DE Agreement (#2 above) project must be accepted by LWSD, prior to new service connection activations.
Comments/special conditions: .
The nearest fire hydrants are/will be on the Property (number & location to be determined by fire marshal).
System hydraulic model results (FF #227, copy attached), at no less than 20 psi, indicate that LWSD’s standard maximum allowable
liquid velocity of 10 ft/s in the existing water distribution system is exceeded at a fire flow rate above 5,200 GPM for two (2) hours or
more. This flow figure depicts the theoretical performance of the water distribution system under high demand conditions. Fire flow
rates greater than this may be accommodated through water distribution system improvements, contact LWSD for additional
information.
578 Pressure Zone Est. Meter Elevation(s)-GIS: High 460+/-, Low 410+/- Est. Pressure Range at Meter(s) (psi): 48-78
I hereby certify that the above water system information is true. This certification shall be valid for one (1) year from the date of
signature.
Name: BRIAN ASBURY Title: DEVELOPMENT ENGINEERING SUPERVISOR
Signature: Brian Asbury (e-signed) Date: 11/4/21
Woodbridge Business Park wtr swr.docx (Form Update 3/13/20) Page 2 of 4