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

Site 42 - Holly Stream near Deans Corner - EBCHOLLY - IMAGE Gallery Watershed Characteristics - Nutrient Chemistry - Molecular Tracers - Macroinvertebrates

Watershed Land Use/Land Cover Characteristics - Data Methodology Description Latitude(dd): 41.376373 Longitude(dd): -73.631460 Watershed Area: 11.9 km2 ------------------------------------------------------------------------------------------------ East of Hudson Land Use/Cover Map Impervious Agriculture Forest Water Wetland 14.97% 10.21% 74.24% 0.58% 6.97% -------------------------------------------------------------------------------------------------   1990 2000 Total Population 862 1040 Population Density (ind./km2) 72.25 87.17 -------------------------------------------------------------------------------------------------   2000 2001 2002 # of SPDES Dischargers 2 2 2 Total Annual Volume (normalized for watershed area) 0.07 cm 0.14 cm 0.03 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 22AUG00 0.0410 22AUG00 0.0410 2001 23AUG01 0.0212 23AUG01 0.0212 2002 31JUL02 0.0100 31JUL02 0.0100 Data Table - Methodology   2000 QUAL 2001 QUAL 2002 QUAL pH 7.8   7.6   7.4   ALKL 101   105   96   COND 398   477   414   CA 37   .   .   MG 11   12   9.9   NA 27   35   29   K 2.7   3.3   2.8   CL 49   76   60   SO4 13   14   13   NH4N 0.03   0.04   0.04   NO3N 0.9   1   0.3   ORGN 0.2   0.3   0.2   SKN 0.2   0.3   0.3   TKN 0.2   0.3   0.3   SRP 0.012   0.006   0.011   TDP 0.014   0.011   0.014   TP 0.02   0.03   0.03   DOC 2431   2438   4806   BDOC .   233   974   TSS 8.5   6.9   7.2   TSS05 5.4   6   4.8   TSS10 3   1.1   1.3   TSS20 0.1   0.7   1   VSS 3   2.1   2   VSS05 1.7   1.8   1.3   VSS10 1.2   0.3   0.3   VSS20 0.05   0.2   0.3     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 21AUG00 0.0497 2001 23AUG01 0.0212 --- --- 2002 29JUL02 0.0198 --- --- 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 .   0.003 HE .   0.005 E .   PHE 0 NE .   0.009 HE .   0.013 E .   ANT 0.004   .   0.0016 HE .   0.003 E .   2MP 0.003 HE .   0.004 HE .   0.0014 E .   1MP 0.001 HE .   0.0007 HE .   0.0014 E .   FLR 0.004   .   0.014 HE .   0.03   .   PYR 0.003   .   0.009 HE .   0.017 E .   BAA 0.005 HE .   0.003 HE .   0.008   .   CHR 0.001 HE .   0.004   .   0.01 E .   BBF 0.002 HE .   0.004 HE .   0.011 E .   BKF 0.0017 HE .   0.003 HE .   0.011   .   BAP 0.003   .   0.004 HE .   0.011   .   HHCB 0.003   .   0.002 HE .   0.011 E .   AHTN 0.01 HE .   0.002 HE .   0.004 E .   CAF 0.019 HE .   0.006 HE .   0.02 E .   bCOP 0.03 HE .   0.04   .   0.06 E .   EPI 0.04 HE .   0.0017 HE .   0.03 E .   CHO 0.4 HE .   0.3   .   3.1 E .   aCOP 0.05 HE .   0.06   .   0.3 E .   aONE 0.01 HE .   0.003 HE .   0.07 E .   bONE 0.013 HE .   0.008 HE .   0.2 E .   SNOL 0.05 HE .   0.05   .   0.2   .     Benthic Macroinvertebrates - Methodology Water Quality Score - WQS Definition