. >> reporter: bluewater baltimore say all signs point to a sewage leak or an overflow of the system possibly caused by last week's storm. boat crews noticed the problem saturday. >> basically it was just a field of gray water sitting on top of the harbor. >> reporter: one of the first thing that tipped the meyers off that sewage may be in the water is the appearance of these. they look like rocks but are actually balls of grease. when you crack them open, trust me, they stink. there are other signs. >> it's disgusting but tampon applicators, condoms. all sorts of things. >> reporter: they're testing for bacteria found in sewage. the city has yet to confirm or deny if it's sewage. department of public works crews also out looking for leaks. so far no cause has been found. >> i admit it's really baffling where the source is because it was such a massive spill and it hasn't been obvious. >> bluewater baltimore is hoping to get the samples back tonight. monique griego, wjz eyewitness news. >> they are asking anyone who notices a problem at the harbor to call 311. >> it is a mild spring

signs that according to the bluewater baltimore point to a sewage spill in the harbor. >> once we see other indicators such as the grease balls, condoms, tampon applicators, condoms floating in the water, we knew it was sewage. >> reporter: it's testing for a disease found in sewage. and today they got their initial result. >> the highest was around three times the lowest threshold for human contact. 92 >> reporter: the condition of the water caused some programs to cancel. >> children like to splash in the water and it's very dangerous. >> reporter: city and state leaders don't believe the initial bacteria readings support it just yet. they say the elevated levels of bacteria and trash are normal, especially after storms like the ones we had last week. >> you have dog and cat excrement and other things that get washed in to the storm system and that flows in to the harbor. >> reporter: the maryland department of environment says various factors including recent algae bloom could be causing the smell. until all test results are in, they can't point to the cause. >> we need to find the