Other Water & Wastewater Systems

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The Missoula County Rural Special Improvement Districts No. 8916, 8918 and 8925 are under the jurisdiction of the Board of County Commissioners.  The Chief Public Works Officer, at the direction of the Board, manages and operates these districts. Districts were formed to operate and maintain water and/or sewer systems that provide service to properties within the legally defined boundaries. 



 No wipes in the pipes

Todays world calls for an abundance of disinfecting wipes, paper towels and napkins, but we still need to dispose of them correctly.

Please DO NOT flush these items down your toilet. It costs a lot of money, time, and staff to make repairs to sewer and septic systems. 


To see boundary maps, click on the district you are interested in.


El Mar Sewer & Water - RSID 8916

Lewis & Clark Water/Wastewater (Clinton) - RSID 8918

Sunset West Water - RSID 8925


Lewis & Clark RSID #8918

Lewis and Clark RSID #8918 received approximately $89,000 from local American Rescue Plan Act funding from the Missoula Board of County Commissioners to improve the districts wastewater collection system. The county contracted with HDR Engineering, Inc to replace its failing system. The new system's cost was paid for with 100% ARPA funding and was at no cost to the 42 homeowners that use it. The system was installed this past summer and it includes a dosing tank, filter, valves and two new pumps. 





Low Income Loan Program 

If you've had a service line break and need assistance in paying to have it repaired, click here for information on how you may be able to get help!

Other Available Protection Programs


If you have any questions regarding these districts and their operations, please contact:


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