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Water Infrastructure

January 26, 2021
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WRITTEN BY Dr. Jenny Bratburd

Senate Bill 44, the Missouri Water and Infrastructure Act, creates a process for filing a water and sewer infrastructure rate adjustment (WSIRA) to recover revenue outside of the normal ratemaking process. SB 44 also increases the competitive bidding process to be used for 20% of the water corporation’s external expenditures.


  • Missouri’s water infrastructure system requires continued maintenance and is expected to need $8.9 billion from 2015 - 2034.
  • SB 44 creates a process to allow water corporations serving greater than 8,000 customers to adjust rates outside the normal ratemaking process.
  • 12% of the U.S. population has unaffordable water and sewer rates and rates are expected to increase; the same population can be at risk for delayed maintenance.


  • Common metrics to assess water affordability consider median incomes and average water use, which may not be as applicable to the most vulnerable water customers.
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