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Water Quality Monitoring in the Source Water Areas for NYC PHASE I Monitoring Sites

Site 19 - West Kill near Lexington - SCHWSTKL - IMAGE Gallery Watershed Characteristics - Nutrient Chemistry - Molecular Tracers - Macroinvertebrates

Watershed Land Use/Land Cover Characteristics - Data Methodology Description Latitude(dd): 42.231837 Longitude(dd): -74.393246 Watershed Area: 74.4 km2 ------------------------------------------------------------------------------------------------ West of Hudson Land Use/Cover Map Impervious Agriculture Forest Water Wetland 0.00% 6.54% 93.44% 0.01% 0.35% -------------------------------------------------------------------------------------------------   1990 2000 Total Population 220 268 Population Density (ind./km2) 2.96 3.60 -------------------------------------------------------------------------------------------------   2000 2001 2002 # of SPDES Dischargers 0 0 0 Total Annual Volume (normalized for watershed area) 0.00 cm 0.00 cm 0.00 cm Ions, Nutrients, DOC/BDOC, and Particulates - click here for abbreviations/units Sampling Dates and Discharge (Q) - Realtime Flow Monitoring   Ions/Nutr & DOC/BDOC Organic Particles Date Q - m3/s Date Q - m3/s 2000 08AUG00 0.4317 08AUG00 0.4317 2001 25JUL01 0.0888 25JUL01 0.0888 2002 17JUL02 0.0907 17JUL02 0.0907 Data Table - Methodology   2000 QUAL 2001 QUAL 2002 QUAL pH 7.5   7.4   7.9   ALKL 17   23   22   COND 53   72   72   CA 6.5   .   .   MG 0.9   1.2   1.2   NA 2.3   3.3   3.5   K 0.3 B 0.4   0.3 B CL 1.8   4   4.2   SO4 5.6   5   5.2   NH4N 0.008 B 0.011   0.006 B NO3N 0.07   0.03   0.012 B ORGN 0.07   0.04   0.08   SKN 0.07 B 0.05   0.08 B TKN 0.1 B 0.04   0.08 B SRP 0.005   0 B 0.003   TDP 0.006 B 0.004 B 0.004 B TP 0.009 B 0.005 B 0.006 B DOC 944   845   858   BDOC .   211   223   TSS 3.8   0.9 B 1.7   TSS05 3.4   0.9   1.9   TSS10 0.2   0.1 B 0.1 B TSS20 0.2   0.2 B 0.2 B VSS 0.7   0.4   0.4   VSS05 0.5   0.4   0.6   VSS10 0.09   0.05 B 0.04 B VSS20 0.03   0.06 B 0.06 B   Molecular Tracer Analysis - click here for abbreviations/units Sampling Dates and Discharges (Q) - Realtime Flow Monitoring   Summer Baseflow Winter Baseflow Date Q - m3/s Date Q - m3/s 2000 08AUG00 0.4317 2001 30JUL01 0.1183 --- --- 2002 16JUL02 0.0994 --- --- 2003     --- --- Data Table - Methodology   2000(SB) QUAL 2001(WB) QUAL 2001(SB) QUAL 2002(WB) QUAL 2002(SB) QUAL 2003(WB) QUAL FLU 0 NE .   0.0004 E .   0.007 E .   PHE 0.0003 HE .   0.0011 E .   0.02 E .   ANT 0.00006 E .   0.0008 E .   0.02 E .   2MP 0.009 HE .   0.005 E .   0.006 E .   1MP 0 NE .   0.0003 E .   0.002 E .   FLR 0.0003 HE .   0.0007 E .   0.011 E .   PYR 0 NE .   0.0003 E .   0.002 E .   BAA 0 NE .   0.0006 E .   0.0017 E .   CHR 0 NE .   0.00017 E .   0.0014 E .   BBF 0 NE .   0.0004 E .   0.03 E .   BKF 0 NE .   0.0004 E .   0.03 E .   BAP 0 NE .   0.0003 E .   0.00012 E .   HHCB 0.003   .   0.003 E .   0.012 E .   AHTN 0.009   .   0.003 E .   0.017 E .   CAF 0 NE .   0.0006 E .   0.012   .   bCOP 0.006 HE .   0.005 E .   0.01 E .   EPI 0.003 HE .   0.0012 E .   0.03   .   CHO 0.3   .   0.2 E .   0.4   .   aCOP 0.05   .   0.03 E .   0.08   .   aONE 0 NE .   0.004 E .   0.015 E .   bONE 0 NE .   0.008 E .   0.02   .   SNOL 0.03 HE .   0.019 E .   0.05   .     Benthic Macroinvertebrates - Methodology Water Quality Score - WQS Definition