New York State is divided into 17 major watersheds, or drainage basins One of the largest in NYS 5,070 square miles of land area entirely within NYS Contains Finger Lakes, Oneida Lake, Onondaga Lake Encompasses 16 counties 8,896 miles of freshwater rivers and streams Over 400 lakes and ponds Empties into Lake Ontario Onondaga Lake Onondaga Lake Onondaga Lake Management Watershed Partnership Conference Partnership -Army Corps -Army Corps -All inclusive, no -USEPA -USEPA hierarchy -NYSDEC -NYSDEC -NYSOAG -NYSOAG -Onondaga County -Onondaga County -City of Syracuse -City of Syracuse -Working with local, state, regional members Bloody Brook • • • • 140 Lake Concentration 120 Guidance Value (20 µg/L) 100 80 Actiflo® on-line 2005 60 Total Phosphorus (µg/L) Phosphorus Total 40 20 0 90 92 94 96 98 00 02 04 06 08 10 12 Year Figure 5-3 (HI-6). Summer (June-September) average phosphorus concentrations in the upper waters (0-3m) of Onondaga Lake 1990-2013. Draft data from Onondaga County Ambient Monitoring Program 3.0 2.5 2.0 N (mg/L) N - 1.5 BAF on-line 2004 Ammonia 1.0 0.5 0.0 90 92 94 96 98 00 02 04 06 08 10 12 Year Figure 5-17 (HI-5). Annual average Ammonia-N concentrations in upper waters (0-3m) in Onondaga Lake, 1990-2013. 100% Minor bloom Major bloom (>30 ppb) 80% 60% 40% 20% 0% 90 92 94 96 98 00 02 04 06 08 10 12 Year No blooms were observed during summer in 1995, 2008, 2009, 2010 - 2013 Figure 5-6 (HI-7). Summer algal bloom frequency, measured as Chlorophyll-α,in Onondaga Lake, 1990-2013 10 8 6 Dissolved Oxygen (mg/L) Oxygen Dissolved 4 The red line represents the instantaneous water quality standard for dissolved oxygen of 4 parts per million 2 0 90 92 94 96 98 00 02 04 06 08 10 12 Year Figure 5-15 (HI-9). Minimum dissolved oxygen concentration in upper waters (0-4 m) during fall turnover (October) in Onondaga Lake. Fecal Coliform Bacteria, April-October 2013 Percent of months in compliance with 200 cells/100 mL standard Nearshore water clarity conditions measured as Secchi disk transparency during 2012 (1.2m) Smallmouth Bass Onondaga Lake, Syracuse, NY 3.0 2.5 2.0 Men Over 15 &g/g ww) Women Under 50 & Children 1.5 Fish Women Over 50 Under 15 1.0 Walleye DON'T EAT DON'T EAT Mercury ( 0.5 0.0 1970 1980 1990 2000 2010 Year LargemouthMethylmercury bass, Smallmouth Concentrations Greater than in Epilimnion15", DON'T EAT;, 1992Less bass- 2009 than 15", up to 1 meal/month DON'T EAT 2.50 1992 1999 2.00 Carp, Channel catfish, White 2006 perch 2007 DON'T EAT DON'T EAT 1.50 2008 2009 Brown bullhead, pumpkin seed Up to 4 meals/month DON'T EAT 1.00 Methylmercury (ng/L) Methylmercury 0.50 All other fish Up to 1 meal/month DON'T EAT 0.00 Questions? Aimee Clinkhammer NEIWPCC Environmental Analyst; Onondaga Lake Watershed Coordinator 315-426-7507 [email protected] www.olwp.org .