I'm not in Hampden. I'm in 21218. But for comparison, I have a 1344 square foot rowhouse (not end of group), and have been here 13.5 years. My highest BGE bill was $291.97 in July 2020. The average has been just under $135. The bill I got last week was $145.23, and my next one (which will include the recent cold snap) is currently projected to be $197. I honestly couldn't imagine paying two to three times as much.

I imagine there's significant overlap between the folks who think this is a good idea, and those who want to completely dismantle I-83.

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.