Connection Charges
Water Availability Certificates
| Single Family | $100.00 |
| Multi-Family & Commercial | $200.00 plus costs |
New Or Upgraded Water Installation Charges
| Meter | Same Side | With Crossing |
|---|---|---|
| 5/8" X 3/4" | $3,100 | $3,800 |
| 1" | $3,300 | $4,000 |
Water General Facility Charges
| Meter | Local | Regional | Total |
|---|---|---|---|
| 5/8" X 3/4" | $7,814 | $8,852 | $16,666 |
| 1" | $19,534 | $22,130 | $41,664 |
| 1 1/2" | $39,068 | $44,260 | $83,328 |
| 2" | $62,510 | $70,816 | $133,326 |
| 3" | $117,208 | $141,632 | $258,840 |
| 4" | $195,345 | $221,300 | $416,645 |
| 6" | $390,689 | $442,600 | $833,289 |
| 8" | $625,104 | $708,160 | $1,333,264 |
Sewer Availability Certificates
| Single Family | $100.00 |
| Multi-Family & Commercial | $200.00 plus costs |
Side Sewer Permits
| Non-Right of Way Connection | |
|---|---|
| Single Family | $250.00 |
| Multi-Family | $250.00 first unit, plus 10.00 per additional unit |
| Commercial | $250.00 plus .02 per sq. ft. structure |
| Right of Way Connection | |
| Permit Fee | $750.00 |
| Includes King County Right of Way Permit and 2 hours minimum inspection fees. Inspections over 2 hours will be billed upon permit close. | |
Sewer Local Facilities Charges
| Meter Size | Amount |
|---|---|
| 5/8" X 3/4" | $8,276 |
| 1" | $20,686 |
| 1 1/2" | $41,373 |
| 2" | $66,198 |
| 3" | $124,118 |
| 4" | $206,866 |
| 5" | $413,732 |
| 6" | $661,972 |
Water & Sewer Extension / Redevelopment
|
APPLICATION FEE: $6,000 (DEPOSIT PER UTILITY) Property owner or developer shall pay all District costs in excess of application fee, including administration, engineering, legal permits and inspections plus 15%. A refund will be issued upon project closeout if the deposit exceeds costs. Delinquent accounts shall accrue interest at a rate of not more than the District's bank rate plus four percentage points per year. |
2026 King County Sewer Rate
|
The King County DNRP Fee/Volume rates noted on page 12 and 13 of Rate Resolution No. 24-05-596 are hereby changed to $62.66 for SFR and SFR Discount and to $8.35/ccf for Commercial/Institutional/Multi-Family to reflect the increased King County wastewater treatment and disposal charges, effective January 1, 2026. |
This page does not reflect a complete listing of the District's established rates, charges, policies and procedures for water and sewer services and connections. Certain properties, depending on location, may be subject to additional costs and connection requirements.