Alderwood Water & Wastewater District

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Wastewater Rates

Please click on the link below to view our current wastewater rates.

Wastewater Rates and Charges

How Rates are Determined:

Alderwood Water & Wastewater District (the District) has established cost-based fees, rates, and charges to provide sufficient funding to build, operate, maintain, and reinvest in our water & wastewater system that provides our ratepayers with safe and reliable drinking water, wastewater services and fire protection. Every three years the District conducts a cost of utility service study to ensure that our customer classes are paying a rate that approximates the cost of providing them service. Periodically the District adjusts rates within classes so that rates are fair and equitable. .


The chart below compares the District’s monthly sewer charges to neighboring jurisdictions.  The calculations do not include franchise fees or utility taxes imposed by some city utilities.    

Rate Comparison – Monthly Sewer

Single Family Residence 10 CCF/Per Month Water Usage

Jurisdiction                                                                                      2018-2019 Monthly Rate                                                  
City of Edmonds $43.65
City of Lynnwood $46.17
City of Mountlake Terrace $48.00
AWWD - Tier 1 $48.21
City of Everett $49.44
Silver Lake Water & Sewer District $56.45
Mukilteo Water & Wastewater District $58.93
Northshore Utility District $59.30
City of Bothell $60.55
AWWD - Tier 2 $62.67
Woodinville Water District $72.48
AWWD - Tier 3 $76.06
City of Snohomish $117.19
City of Seattle $144.80