Return to EOH Site Map

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

Site 49 - Hallocks Mill Brook near Amawalk - MUSHALLC - IMAGE Gallery Watershed Characteristics - Nutrient Chemistry - Molecular Tracers - Macroinvertebrates

Watershed Land Use/Land Cover Characteristics - Data Methodology Description Latitude(dd): 41.285831 Longitude(dd): -73.766065 Watershed Area: 29.5 km2 ------------------------------------------------------------------------------------------------ East of Hudson Land Use/Cover Map Impervious Agriculture Forest Water Wetland 31.48% 11.32% 54.32% 2.63% 7.76% -------------------------------------------------------------------------------------------------   1990 2000 Total Population 14344 15225 Population Density (ind./km2) 486.13 515.99 -------------------------------------------------------------------------------------------------   2000 2001 2002 # of SPDES Dischargers 1 1 1 Total Annual Volume (normalized for watershed area) 6.99 cm 7.36 cm 6.48 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 12SEP00 0.0494 12SEP00 0.0494 2001 05SEP01 0.0278 05SEP01 0.0278 2002 13AUG02 0.0283 13AUG02 0.0283 Data Table - Methodology   2000 QUAL 2001 QUAL 2002 QUAL pH 7   7   6.8   ALKL 94   101   135   COND 630   838   960   CA 36   .   .   MG 12   14   14   NA 48   66   76   K 7.1   11   14   CL 115   164   180   SO4 20   32   28   NH4N 10   18   26   NO3N 1.5   3.4   1.8   ORGN 1   0 N 2.3   SKN 11   17   28   TKN 11   17   29   SRP 0.011   0.005   0.01   TDP 0.019   0.016   0.03   TP 0.05   0.08   0.1   DOC 8720   8171   12949   BDOC .   2420   4014   TSS 1 B 4.3   6.1   TSS05 0.8 B 3.5   19   TSS10 0 B 0.2 B 0.2   TSS20 0.3   0.8   0.5   VSS 0.7   2.7   2.3   VSS05 0.6   2.3   7.1   VSS10 0 B 0.07   0.08   VSS20 0.08   0.2   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 12SEP00 0.0494 2001 06SEP01 0.0278 08MAR01 0.6385 2002 12AUG02 0.0212 21FEB01 0.1668 2003     11FEB03 . Data Table - Methodology   2000(SB) QUAL 2001(WB) QUAL 2001(SB) QUAL 2002(WB) QUAL 2002(SB) QUAL 2003(WB) QUAL FLU 0.03 HE 0.01 HE 0.003 E 0.02 E 0.05 E 0.018 E PHE 0.013 HE 0.02 HE 0.01 E 0.05 E 0.014 E 0.04 E ANT 0.003 HE 0.002 HE 0.005 E 0.004 E 0.004 E 0.009 E 2MP 0.016 HE 0.007   0.03 E 0.04 E 0.1 E 0.02 E 1MP 0.011 HE 0.004 HE 0.002 E 0.009 E 0.05   0.016 E FLR 0.05 HE 0.03   0.1 E 0.08 E 0.2   0.04 E PYR 0.01 HE 0.019 HE 0.002 E 0.06 E 0.3 E 0.03 E BAA 0.005 HE 0.003 HE 0.0019 E 0.008 E 0.006 E 0.017   CHR 0.004 HE 0.004 HE 0.003 E 0.03   0.003 E 0.015 E BBF 0.004 HE 0.004 HE 0.003 E 0.02   0.003 E 0.02   BKF 0.002 HE 0.004 HE 0.002 E 0.018   0.0015 E 0.012 E BAP 0.003 HE 0.01   0.019 E 0.014   0 NE 0.04   HHCB 1   0.4   1.3   0.8   2.9   0.5   AHTN 0.2   0.1   0.5   0.1   0.9   0.2   CAF 4.9   1.8   0.2 HE 1.7 E 9   5.4 E bCOP 2.8   0.4   0.3 HE 8.2 E 48 E 1.1   EPI 0.1   0.015 HE 0.01 E 0.2 E 85 E 0.06   CHO 4.3   1   0.8 HE 16 E 48 E 1.7   aCOP 0.3   0.1   0.04 E 0.7 E 1.4   0.2   aONE 0 NE 0.014 HE 0.003 E 0.05 E 0 NE 0.05 E bONE 0.3   0.03   0.04 E 0.4   0 NE 0.3   SNOL 0.1   0.07   0.02 E 0.6 E 0 NE 0.2     Benthic Macroinvertebrates - Methodology Water Quality Score - WQS Definition