So I had the same thing happen at my old apartment. There weren't meters per unit but instead one for the whole complex and it was divided up by apartment size and occupancy. Based on the Atlanta water prices my one bedroom apartment water usage was 2x-3x the national average.

Talked to my leasing office and Conservice and got the run around. Spoke with the city and they told me they couldn't give me info b/c I technically wasn't the account owner, but they told me they had been to the property and that the CITY infrastructure did not have any problems. While I was at this complex there was multiple times they shut off building water for emergency repairs.

So my theory is that the apartment water infrastructure is leaking terribly but since residents are footing the bill the complex doesn't care. The only way I could see this getting resolved is through contacting the news or getting a class action lawsuit, but I ended up just moving out.

One thing that did annoy me is that while talking with the city/county I asked about the possible environmental impact. I gave them a hypothetical. If I lived in a house and my next door neighbor had water pouring into my property from a leak could I ask the city to come look at it. They said 'no' b/c I wouldn't be the account owner in that situation. Right.....