Notice to Contractors: Stormwater System Maintenance

Release Date: January 09, 2019

 Sealed proposals will be received by the City of Sammamish up to 2:00 p.m. (local time) on January 23, 2019.  The City of Sammamish is seeking a contract to assist in the maintenance of the City’s stormwater system infrastructure.


City of Sammamish

801 228th Avenue SE

Sammamish, WA 98075

Attn: City Clerk


Stormwater System Maintenance work under Schedule A shall include catch basin vactoring; inspecting catch basins for illicit discharges and connections; storm pipe jetting and cleaning; CCTV services; control structure vactoring and repair; stormwater facility jetting, cleaning, and vactoring; water quality system maintenance such as filter cartridge cleaning and replacement, FilterraTM and Modular Wetland SystemTM maintenance; hydro excavation vactor services; root cutting services; emergency spill response; and emergency stormwater response.


Bid schedule includes:

Schedule A

Bid items within Schedule A shall include work to provide cleaning, repairing, or maintaining catch basins and stormwater facilities whose primary benefit is for public streets and roads.  Stormwater catchbasins and facilities in the system are designed and intended for the disposal of the normal runoff of surface waters from the streets, roads, etc., in which the system was constructed.


All traffic control including but not limited to provision of certified flaggers, cones, and warning signs is the responsibility of the contractor.



The expected duration of the contract is a two (2) year term with an option for one extension for an additional two (2) years.  All bidding and construction shall be performed in compliance with the Contract Provisions for this project and any addenda issued thereto which are on file at the office of the City Clerk, City Hall, Sammamish, Washington.


At the time and date stated above, the proposals will be publicly opened and read aloud. Proposals are to be submitted only on the form provided with the Contract Provisions

Contract Provisions and addenda for this Project are available for download through the City of Sammamish’s website at: under News and Events.  Alternatively, email Marlene Dunham at for a copy of Contract Provisions and addenda.


The City of Sammamish expressly reserves the right to reject any or all bids and to waive minor irregularities or informalities and to further make award of the Project to the lowest responsive, responsible bidder as it best serves the interest of the City.


Melonie Anderson

City Clerk