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Notification of Change to System Development Charges

Date: March 24, 2008 

TVWD is revising the Water System Development Charges (SDCs) are in accordance with Resolution 03-08 adopted February 20, 2008 by the Board of Commissioners. The new charges will be effective June 1, 2008.

The SDC for a standard 5/8” x3/4” water meter serving one equivalent residential unit (ERU) increased from $3,341 to $4,744. The table listed below details rates and methods for assessing SDCs for all meter sizes, as well as for multipurpose residential meters for fire sprinkler systems.

This SDC update was completed in conjunction with the District’s 2007 Water Master Plan Update and 2008-2013 Six-Year Capital Improvement Plan adopted by the Board in June 2007. The methodology of the SDC calculation has not been changed, but the fees are being adjusted to reflect future water supply, storage and distribution project costs and capacities that are now included in the capital plan. A primary driver for the SDC increase is the District’s participation in the Tualatin Basin Water Supply Project (TBWSP) to expand Hagg Lake for the majority of its water supply in order to meet growth anticipated in the District.

For more information, E-mail our Engineering Department or call (503) 642-1511 and ask for Water Meter Sales. You can also visit our TBWSP Web Page or our Capital Improvements Web Page for more information about our participation in those projects.

System Development Charges Effective June 1, 2008

For meters over 1-1/2”: the SDC shall be determined based on the customers anticipated water usage. Anticipated peak day water usage will be divided by the peak day system design flow of 844 gallons per day per equivalent residential unit (ERU) to determine peak day ERU's. Anticipated average daily water usage will be divided by 358 gallons per day per ERU to determine average day ERU's (storage ERU's).

The system development charge shall be the sum of the peak day SDC cost per ERU multiplied by the peak day ERU's and the storage SDC cost per ERU multiplied by the storage ERU's.

The SDC paid for meters larger than 1-1/2 inches as of the effective date of this resolution may be adjusted upward based on actual usage pursuant to an SDC agreement to be executed with the District. If usage is greater than 110% of anticipated volume during a 12 month period of time, but in no event longer than sixty (60) months from the date of the agreement, an additional SDC may be charged, using the same techniques for calculating peak day and storage ERU's and multiplying the peak day SDC cost per ERU and the storage cost per ERU then in effect.

Multipurpose Meters for Residential Fire Systems: The SDC paid for a residential 3/4” or 1” water meter, in the circumstance where a larger meter is required only for the purpose of meeting a residential multi-purpose fire sprinkler system requirement, will consist of the SDC for the appropriate size meter that would be required without the multi-purpose fire sprinkler system plus 18% of the difference between the price of the SDC for the meter size meeting the domestic water requirements and the SDC for the meter size meeting the fire sprinkler requirement. The 18% factor represents the storage cost component of the SDC. Should the customer regularly use the capacity of the 3/4” or 1” meter to meet their domestic needs they will be required to pay the remainder of the SDC at the current rate in effect.