from nearby Onondaga Lake is not potable due to industrial dumping that spanned many decades, leaving the lake heavily polluted. Incoming water is left unfiltered, and chlorine is added to prevent bacterial growth. Most of the environmental work to achieve lake cleanup was scheduled to be completed by 2016; however Honeywell, the company tasked with the cleanup, announced the project's completion in late 2017. For periods of drought, there is also a backup line which uses water from Lake Ontario. Onondaga Creek, a waterway that runs through downtown, flows northward through the city. The Onondaga Creekwalk borders this, connecting the Lakefront, Inner Harbor, Franklin Square and Armory Square neighborhoods. The creek continues through the Valley and ultimately to the Onondaga Nation. The creek is navigable, but it can be a challenge. Its channelized nature speeds up its flow, particularly in the spring, when it may be dangerous. After some youngsters drowned in the creek, some residential areas fenced-off the creek in their neighborhoods. Climate Syracuse has a hot-summer humid continental climate (Dfa), as mean July temperatures are just above the threshold needed for a hot-summer climate. The city is known for its high snowfall, on average; Syracuse receives the most annual average snow of any metropolitan area in the United States. Syracuse usually wins the Golden Snowball Award among Upstate cities. Its record seasonal (July 1 to June 30 of the following year) snowfall so far is during the winter of 1992–93, while the snowiest calendar month was January 2004, with accumulated. The high snowfall is a result of the city receiving both heavy snow from the lake effect of nearby Lake Ontario (of the Great Lakes) and nor'easter snow from storms driven from the Atlantic Ocean. Snow most often falls in small (about ), almost daily doses, over a period of several days. Larger snowfalls do occur occasionally, and even more so in the northern suburbs. The Blizzard of 1993 was described as the Storm of the Century. Some fell on the city within 48 hours, with falling within the first 24 hours. Syracuse received more snow than any other city in the country during this storm, which shattered a total of eight local records, including the most snow in a single snowstorm. A second notable snowfall was the Blizzard of 1966, with . The Blizzard of '58 occurred in February (16–17th) across Oswego and Onondaga counties. This storm