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

Site 39 - Tributary to E. Branch Croton R. nr Brewster - EBCUTRB1 - IMAGE Gallery Watershed Characteristics - Nutrient Chemistry - Molecular Tracers - Macroinvertebrates

Watershed Land Use/Land Cover Characteristics - Data Methodology Description Latitude(dd): 41.406456 Longitude(dd): -73.593218 Watershed Area: 1.5 km2 ------------------------------------------------------------------------------------------------ East of Hudson Land Use/Cover Map Impervious Agriculture Forest Water Wetland 49.49% 4.48% 46.02% 0.00% 0.59% -------------------------------------------------------------------------------------------------   1990 2000 Total Population 1010 964 Population Density (ind./km2) 676.99 645.98 -------------------------------------------------------------------------------------------------   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 21AUG00 0.0062 21AUG00 0.0062 2001 22AUG01 0.0031 22AUG01 0.0031 2002 14AUG02 0.0014 14AUG02 0.0014 Data Table - Methodology   2000 QUAL 2001 QUAL 2002 QUAL pH 8.2   7.8   7.9   ALKL 114   109   117   COND 593   547   755   CA 45   .   .   MG 15   15   18   NA 54   41   59   K 3.7   3.9   4.7   CL 94   91   145   SO4 19   20   19   NH4N 0.007 B 0.011   0.006 B NO3N 1.9   1.4   1.9   ORGN 0.2   0.2   0.2   SKN 0.2   0.3   0.2   TKN 0.2   0.3   0.2   SRP 0.03   0.03   0.03   TDP 0.03   0.04   0.03   TP 0.03   0.05   0.03   DOC 1735   2043   1996   BDOC .   . V 68   TSS 6.9   9.1   1.9   TSS05 4.6   2   0.9   TSS10 2.1   1.2   0.3   TSS20 0.2   5   0.4   VSS 2.4   1.2   0.9   VSS05 1.6   0.3 B 0.4   VSS10 0.7   0.1   0.1   VSS20 0.06   0.6   0.1 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 21AUG00 0.0062 2001 23AUG01 0.0027 --- --- 2002 30JUL02 0.0017 --- --- 2003     --- --- Data Table - Methodology   2000(SB) QUAL 2001(WB) QUAL 2001(SB) QUAL 2002(WB) QUAL 2002(SB) QUAL 2003(WB) QUAL FLU 0.002   .   0.003 HE .   0.003 E .   PHE 0.006   .   0.006 HE .   0.016   .   ANT 0.002   .   0.003 HE .   0.006 E .   2MP 0 NE .   0.0007 HE .   0.005 E .   1MP 0 NE .   0.0005 HE .   0.005 E .   FLR 0.012   .   0.011 HE .   0.02 E .   PYR 0.009   .   0.008 HE .   0.02 E .   BAA 0.006 HE .   0.003 HE .   0.014   .   CHR 0.004   .   0.003 HE .   0.014   .   BBF 0.005   .   0.003 HE .   0.012 E .   BKF 0.003   .   0.002 HE .   0.013   .   BAP 0.005   .   0.002 HE .   0.013   .   HHCB 0.005   .   0.004 HE .   0.014   .   AHTN 0.002 HE .   0.006 HE .   0.011 E .   CAF 0 NE .   0.002 HE .   0.006 E .   bCOP 0 NE .   0.0013 HE .   0.016   .   EPI 0 NE .   0.0006 HE .   0.016   .   CHO 1.7 HE .   0.3   .   0.2   .   aCOP 0.3 HE .   0.03   .   0.04   .   aONE 0 NE .   0.008   .   0.02   .   bONE 0 NE .   0 NE .   0.03   .   SNOL 0.2 HE .   0.02   .   0.04   .     Benthic Macroinvertebrates - Methodology Water Quality Score - WQS Definition