Return to EOH Site Map

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

Site 54 - Unnamed Tributray of the Croton River - CROUTRB1 - IMAGE Gallery Watershed Characteristics - Nutrient Chemistry - Molecular Tracers - Macroinvertebrates

Watershed Land Use/Land Cover Characteristics - Data Methodology Description Latitude(dd): 41.248582 Longitude(dd): -73.821063 Watershed Area: 3.6 km2 ------------------------------------------------------------------------------------------------ East of Hudson Land Use/Cover Map Impervious Agriculture Forest Water Wetland 4.35% 19.32% 76.27% 0.05% 1.75% -------------------------------------------------------------------------------------------------   1990 2000 Total Population 215 217 Population Density (ind./km2) 60.18 60.66 -------------------------------------------------------------------------------------------------   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 13SEP00 0.0081 12SEP00 0.0081 2001 18SEP01 0.0052 05SEP01 0.0052 2002 --- no flow --- no flow Data Table - Methodology   2000 QUAL 2001 QUAL 2002 QUAL pH 7.7   7.4   .   ALKL 47   41   .   COND 244   237   .   CA 19   .   .   MG 6.6   6.4   .   NA 18   16   .   K 2.3   2.2   .   CL 34   35   .   SO4 13   14   .   NH4N 0.006 B 0.007 B .   NO3N 0.5   0.5   .   ORGN 0.2   0.1   .   SKN 0.2   0.1   .   TKN 0.2   0.08   .   SRP 0.015   0.012   .   TDP 0.017   0.013   .   TP 0.02   0.012   .   DOC 3979   1551   .   BDOC .   .   .   TSS 1.4   1 B .   TSS05 0.8 B 0.6   .   TSS10 0.2   0.3   .   TSS20 0.4   0.8   .   VSS 0.5   0.4   .   VSS05 0.3   0.2 B .   VSS10 0.06   0.09   .   VSS20 0.1   0.2   .     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 13SEP00 0.0081 2001 05SEP01 0.0034 --- --- 2002 --- no flow --- --- 2003     --- --- Data Table - Methodology   2000(SB) QUAL 2001(WB) QUAL 2001(SB) QUAL 2002(WB) QUAL 2002(SB) QUAL 2003(WB) QUAL FLU 0.0012 HE .   0.0005 E .   .   .   PHE 0.003 HE .   0.003 E .   .   .   ANT 0.003 HE .   0.003 E .   .   .   2MP 0.003 HE .   0.003 E .   .   .   1MP 0.0006 HE .   0.0011 E .   .   .   FLR 0.0013 HE .   0.004 E .   .   .   PYR 0.002   .   0.003 E .   .   .   BAA 0.0005 HE .   0.003 E .   .   .   CHR 0.00008 HE .   0.003 E .   .   .   BBF 0.0004   .   0.004 E .   .   .   BKF 0.00016 HE .   0.004 E .   .   .   BAP 0.0008 HE .   0.006 E .   .   .   HHCB 0.004   .   0.002 E .   .   .   AHTN 0.0011 HE .   0.005 E .   .   .   CAF 0.002   .   0.0016 E .   .   .   bCOP 0.006   .   0.0004 E .   .   .   EPI 0.011   .   0.0003 E .   .   .   CHO 0.2   .   0.2   .   .   .   aCOP 0.03   .   0.03   .   .   .   aONE 0.018 HE .   0.014 E .   .   .   bONE 0.003 HE .   0.006   .   .   .   SNOL 0.03   .   0.03   .   .   .     Benthic Macroinvertebrates - Methodology Water Quality Score - WQS Definition