Water and Sewer Rates

Sammamish Plateau Water is committed to providing high-quality water and sewer service to our customers. Periodic rate adjustments ensure the District’s ability to maintain this level of service. The following information is about the 2023 rate update that takes effect January 1, 2023.

WATER RATES

The District Board, at the December 5, 2022 Public Hearing, approved a 4% water revenue adjustment to the single-family customer class. Revenue adjustments are based upon a customer cost of service analysis and will be applied as follows:

  • No adjustments for non-single family rates – this includes multi-family and commercial customers
  • No adjustments to single-family base rates and Block One for customers consuming less than 600 CF per month

See below for adjustments to single-family rates consuming more than 600 CF (Blocks Two, Three and Four)

USAGE BLOCKSMONTHLY USAGE
Cubic Feet		2022 RATE
Cost per 100 CF		2023 RATE
Cost per 100 CF		INCREASE
Cost per 100 CF
Block One0-600$2.16$2.16$0.00
Block Two601-1200$2.63$3.20$0.57
Block Three1201-1900$4.25$5.17$0.92
Block FourAbove 1900$8.56$10.08$1.52

*One Cubic Foot (CF) equals 7.48 gallons

SEWER RATES

The District Board approved an adjustment to sewer revenue of 4.5% for all customers. 

CUSTOMER CLASS2022 RATE2023 RATEINCREASE 
Single-family$39.29$41.06$1.77
Multi-family$25.48$26.63$1.15
Public/Commercial/Industrial$44.65$46.66$2.01