Maryland instituted a tax on sewage systems known as the ‘Flush Tax’ in 2004. It was set at $2.50 a month which comes out to a tax of $30 a year. The tax was to support the Chesapeake and Atlantic Coastal Bays Restoration Fund. 

Over the past year Maryland Governor Martin O’Malley has been lobbying for an increase in the tax. He recently confirmed that he will seek to double fee revenue from the state’s so-called “flush tax” on water and sewer bills. Rather than a flat fee of $2.50 per household, the fee will be based on consumption. Those using wells and septic systems will see their fees double to $5.

http://www.washingtonpost.com/local/md-politics/maryland-governor-defends-plan-to-raise-taxes/2012/01/18/gIQAEI2X9P_story.html

For more background information on the tax see this article on Anne Arundel County’s Citizen Information Center: http://www.aacounty.org/DPW/Utilities/flushTax.cfm

For Current information on the future of this tax read these articles at delmarvanow.com and WTOP.com:

http://www.delmarvanow.com/article/20111229/NEWS01/111229029/O-Malley-Consumption-could-drive-individual-fees-flush-tax

http://www.wtop.com/?nid=41&sid=2688402