Not "recent" as in a couple of months, but they've grown a lot over time.

If I'm correctly interpreting the "Historic Rate Increases" on the DPW website (https://publicworks.baltimorecity.gov/proposed-rates), then the water and wastewater rates (which don't include things like account management and stormwater fees) have increased 333% since I bought my house in 2009.

And over the last 20 years, they've increased 580%. Cumulative inflation (according to https://www.usinflationcalculator.com/) has been about 65% over the same 20 years.
That's pretty significant.