I called 311 almost daily for a month and then off and on again when the particular problem appeared again.....excessive noise from a building construction site directly across the street from me, which has been ongoing for over four years now! Which tells you how bad the contractor is, a seven storey building taking four years to put up?! I even overheard a city building code inspector the other week on the street telling the contractor, "You know there are no currently manufactured windows that will fit those window holes you've made." I had to choke back the laughs. But as for 311, it took them a few weeks but they banished a gigantic fork lift that used to send my hole building into shivers at about 6:45AM each morning. Totally, obviously, a blatant violation of noise standards, not to mention construction sites are alowed to make noise but not over 40 decibels and not before 7:00AM. The not nice thing though is that the city will let this kind of thing go on unless you complain and complain and complain about it. I found one thing that helped though. The first time the contractor was violating the noise statute was when they had a generator as big as a bus in the foundation to pump out standing rain water, the generator was so loud even the workers would stand half way down the block to avoid the deafening sound. I confronted the site manager in the muddy foundation at about 7:30AM and told him if he didn't take that generator out I would get everyone on the whole block to call the city and get him fined. He scoffed at that. So I printed up big fliers in spanish and english with the 311 number and instructions on just how to lodge a complaint about the generator. I posted the fliers around the whole block of 3rd and 2nd Streets and for good effect stuck one on the front door of the contractor's office which happened to be on the corner. The generator was not turned on the next day and the following day it was gone, never to appear again. Make no mistake, contractors and the like will totally take advantage of you and everyone else unless you stick it in their face.