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


Site 41 - West Branch Croton River near Crafts - WBCCRAFT - IMAGE Gallery
Watershed Characteristics - Nutrient Chemistry - Molecular Tracers - Macroinvertebrates


Watershed Land Use/Land Cover Characteristics - Data Methodology Description

Latitude(dd): 41.388429
Longitude(dd): -73.683238
Watershed Area: 117.1 km2




------------------------------------------------------------------------------------------------
East of Hudson Land Use/Cover Map
Impervious Agriculture Forest Water Wetland
2.90% 2.48% 84.93% 8.78%

6.67%

-------------------------------------------------------------------------------------------------
 
1990
2000

Total Population

10140
11351
Population Density (ind./km2)
86.59
96.93
-------------------------------------------------------------------------------------------------
 
2000
2001
2002
# of SPDES Dischargers
1
1
1
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
22AUG00
0.4022
22AUG00
0.4022
2001
22AUG01
0.2418
22AUG01
0.2418
2002
01AUG02

0.0895

01AUG02
0.0895

Data Table - Methodology
  2000 QUAL 2001 QUAL 2002 QUAL
pH 7.8   7.4   7.2  
ALKL 14   19   22  
COND 72   85   121  
CA 6   .   .  
MG 1.6   1.8   2.6  
NA 4.6   5.7   8.6  
K 0.6   0.8   0.9  
CL 7.5   10   17  
SO4 7.1   5.8   7.8  
NH4N 0.004 B 0.03   0.008 B
NO3N 0.2   0.3   0.3  
ORGN 0.2   0.2   0.08  
SKN 0.2   0.2   0.09 B
TKN 0.1   0.2   0.1  
SRP 0.002 B 0.002 B 0.002 B
TDP 0.003 B 0.005 B 0.005 B
TP 0.007 B 0.01   0.012  
DOC 1875   1827   2145  
BDOC .   89   298  
TSS 11   6.3   4  
TSS05 10   2.3   2.3  
TSS10 0.8   0.8   0.7  
TSS20 0.4   1.5   2.1  
VSS 3.4   2   1.5  
VSS05 3.1   1   0.7  
VSS10 0.3   0.3   0.2  
VSS20 0.1   0.6   0.7  

 

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
0.4879
2001
24AUG01
0.2222
---
---
2002
30JUL02
0.1353
---
---
2003    
---
---

Data Table - Methodology
  2000(SB) QUAL 2001(WB) QUAL 2001(SB) QUAL 2002(WB) QUAL 2002(SB) QUAL 2003(WB) QUAL
FLU 0.0011 HE .   0.001 HE .   0.0008 E .  
PHE 0.003   .   0.0007 HE .   0.004 E .  
ANT 0.0003 HE .   0.0006 HE .   0.0008 E .  
2MP 0.002 HE .   0.009 HE .   0.0011 E .  
1MP 0.0004 HE .   0.0005 HE .   0.0006 E .  
FLR 0.003   .   0.003 HE .   0.007 E .  
PYR 0.0019   .   0.002 HE .   0.003 E .  
BAA 0.005 HE .   0.001 HE .   0.0005 E .  
CHR 0.0013 HE .   0.0014 HE .   0.002 E .  
BBF 0.0015 HE .   0.0011 HE .   0.002 E .  
BKF 0.0006   .   0.001 HE .   0.0018 E .  
BAP 0.0015   .   0.0013 HE .   0.002 E .  
HHCB 0.0019   .   0.03   .   0.003 E .  
AHTN 0.0002 HE .   0.008 HE .   0.005 E .  
CAF 0.0009 E .   0.00002 HE .   0.0014 E .  
bCOP 0.005 HE .   0.0005 HE .   0.007 E .  
EPI 0.006 HE .   0.0017 HE .   0.005 E .  
CHO 0.4 HE .   0.5   .   0.4   .  
aCOP 0.02 HE .   0.02   .   0.05   .  
aONE 0.007 HE .   0.008 HE .   0.009   .  
bONE 0.012 HE .   0.03   .   0.03   .  
SNOL 0.017 HE .   0.018 HE .   0.04   .  

 

Benthic Macroinvertebrates - Methodology

Water Quality Score - WQS Definition



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