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SANITARY SEWER
The Sanitary Sewer Utility operates and maintains the City's sewer collection lines and pump stations. For information regarding billing, forms, etc. please see the Utilities Clerk page.
CURRENT ACTIVITIES  
DOCUMENTS

The City of Black Diamond is working on new Development Standards

 

 

 

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General Sewer Plan
Sewer Connection Form
 
 
   
SEWER RATES
 

 

Sewer (effective January 1, 2019)
Sewer rate is based on charges from King County Metro, Soos Creek Water & Sewer District, and Black Diamond Sewer plus water consumption.

Monthly Sewer Charge:
King County Metro   $45.33
Black Diamond Sewer $21.78
Total   $67.11

For each additional commercial users, multi-family residences and mobile home parks served by the same water meter, there will be a charge of $10.00 per unit.
Water consumed in excess of 750 cubic feet per month, a rate of $7.53 per one hundred cubic feet will be charged.
 
 




   


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