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

Site 40 - Middle Branch Croton River near Carmel - MBCCARML - IMAGE Gallery Watershed Characteristics - Nutrient Chemistry - Molecular Tracers - Macroinvertebrates

Watershed Land Use/Land Cover Characteristics - Data Methodology Description Latitude(dd): 41.434762 Longitude(dd): -73.654275 Watershed Area: 35.5 km2 ------------------------------------------------------------------------------------------------ East of Hudson Land Use/Cover Map Impervious Agriculture Forest Water Wetland 9.51% 3.74% 81.63% 4.60% 5.94% -------------------------------------------------------------------------------------------------   1990 2000 Total Population 8744 9216 Population Density (ind./km2) 246.30 259.61 -------------------------------------------------------------------------------------------------   2000 2001 2002 # of SPDES Dischargers 6 6 6 Total Annual Volume (normalized for watershed area) 0.09 cm 0.10 cm 0.12 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 0.1219 22AUG00 0.1219 2001 22AUG01 0.0733 22AUG01 0.0733 2002 16JUL02 0.0214 16JUL02 0.0214 Data Table - Methodology   2000 QUAL 2001 QUAL 2002 QUAL pH 8.1   7.9   7.8   ALKL 75   77   76   COND 459   526   511   CA 27   .   .   MG 9.3   10   9.7   NA 51   57   55   K 2.2   2   2.3   CL 88   111   106   SO4 9.6   7.5   10   NH4N 0.002 B 0.005 B 0.008 B NO3N 0.3   0.5   0.5   ORGN 0.3   0.3   0.3   SKN 0.3   0.3   0.3   TKN 0.6   0.3   0.3   SRP 0.003   0.03   0.018   TDP 0.005 B 0.03   0.02   TP 0.04   0.03   0.02   DOC 4463   3499   3990   BDOC .   . V 318   TSS 12   0.6 B 0.8 B TSS05 8.1   0.5 B 0.5   TSS10 1.9   0.2   0.1 B TSS20 1.7   0.4   0.3 B VSS 5.1   0.5   0.4   VSS05 2.8   0.3 B 0.3 B VSS10 1   0.06   0.06 B VSS20 1.3   0.08 B 0.08 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 0.1479 2001 23AUG01 0.0631 07MAR01 0.7629 2002 15JUL02 0.0278 21FEB01 0.2006 2003     11FEB02 . Data Table - Methodology   2000(SB) QUAL 2001(WB) QUAL 2001(SB) QUAL 2002(WB) QUAL 2002(SB) QUAL 2003(WB) QUAL FLU 0 NE 0.004 E 0.0019 HE 0.003 E 0.0014 E 0.001 E PHE 0 NE 0.007 E 0.004 HE 0.005 E 0.005 E 0.005 E ANT 0 NE 0.005   0.0012 HE 0.003 E 0.0014 E 0.001 E 2MP 0.014 HE 0.004 E 0.0007 HE 0.003 E 0.0012 E 0.003 E 1MP 0.0011 HE 0.0009 E 0.0017 HE 0.0009 E 0.0006 E 0.0007 E FLR 0 NE 0.006 E 0.005 HE 0.006 E 0.008 E 0.012 E PYR 0.008   0.008   0.003 HE 0.004 E 0.004 E 0.01 E BAA 0.0014 HE 0.002 E 0.0014 HE 0.0018 E 0.0014 E 0.009   CHR 0.006 HE 0.002 E 0.0019 HE 0 NE 0.0007 E 0.009   BBF 0 NE 0.003 E 0.0011 HE 0.0011 E 0.002 E 0.012 E BKF 0.005 HE 0.003 E 0.0006 HE 0.001 E 0.0017 E 0.01 E BAP 0.004 HE 0.002 E 0.0009 HE 0.0007 E 0.0015 E 0.012 E HHCB 0.007   0.018   0.002 HE 0.03   0.003 E 0.014   AHTN 0 NE 0.018   0.003 HE 0.01 E 0.003 E 0.011 E CAF 0 NE 0.1   0.003 HE 0.04   0.04   0.08   bCOP 0.03 HE 0.03   0.005 HE 0.05   0.018   0.05   EPI 0 NE 0.007 NE 0.0012 HE 0 NE 0.006   0.02 E CHO 1.1 HE 0.7   0.3   0.8   0.8   0.6   aCOP 0.1 HE 0.09 E 0.05   0.1   0.1   0.1   aONE 0.03 HE 0.011   0.009 HE 0.03   0.02   0.04   bONE 0.04 HE 0.02   0.007 HE 0.07   0.06   0.06   SNOL 0.05 HE 0.07   0.03   0.06   0.05   0.1     Benthic Macroinvertebrates - Methodology Water Quality Score - WQS Definition