Home Archived February 7, 2019
(i)
Site Information
01399525   Axle Brook near Pottersville, NJ
Location:Latitude 40�'40", Longitude 74�'04", Somerset County, Hydrologic Unit 02030105, on right upstream wing wall of bridge on Black River Road, 1.3 mi, south of Pottersville, and 0.3 mi upstream from mouth.
Drainage Area:Continuous Period of Record:RemarksSite Type:Baseline Period of Record:Baseline Quality
1.221978-1988D1977-1988POOR

Hydrologic Indices
Flow RegimeFlow EventIndex NameIndex Value
Magnitude
Index Type
Average FlowSurrogate for25th Percentile*Value75th Percentile*
Temporal MA10.192.161.43
Temporal MA20.190.651.43
Temporal MA3231.67260.68431.94
Spatial MA419.2-244.9365.72
Spatial MA51.273.322.47
Spatial MA66.227851.29
Spatial MA72.9413.8510.86
Spatial MA82.367.57
Spatialb MA9MA390.41-10.112.55
Spatial MA100.27-6.11.69
Spatial MA110.21-4.681.41
Temporal MA121.042.144.22
Temporalbc MA13MA391.423.294.59
Temporal MA141.552.945.55
Temporal MA151.243.744.48
Temporal MA160.762.323.22
Temporal MA170.30.530.83
Temporal MA180.120.230.84
Temporal MA190.080.250.98
Temporal MA200.10.291.36
Temporal MA210.340.561.5
Temporal MA220.751.874.09
Temporal MA231.032.314.87
Temporal MA2470.43167.12209.49
Temporal MA2573.71156.16218.14
Temporal MA26103.54136.54155.31
Temporal MA2798.96114.53205.38
Temporal MA2869.86181.23218.43
Temporal MA2964.66156.07205.73
Temporal MA30129.47187.32322.47
Temporal MA31164.11214.61271.25
Temporal MA32104.58202.93289.52
Temporal MA3381.73117.27260.95
Temporal MA34143.86166.84208.58
Temporal MA3597.63135.9160.07
Spatial MA363.228.976.47
Spatial MA370.851.961.58
Spatial MA381.483.62.77
Spatiala MA3952.34106.9491.65
Spatialb MA40MA390.170.530.33
Temporal MA411.421.772.76
Spatial MA420.91.281.23
Spatial MA430.310.850.48
Spatialb MA44MA390.71.240.93
Spatial MA45-0.020.120.03
Low Flow
Temporalc ML10.120.530.98
Temporalc ML20.40.71
Temporalc ML30.480.760.89
Temporalc ML40.280.490.7
Temporalc ML50.080.220.32
Temporalc ML60.050.10.15
Temporalc ML700.020.06
Temporalc ML800.040.08
Temporalc ML900.050.24
Temporalc ML100.030.120.45
Temporalc ML110.150.20.38
Temporalc ML120.280.820.96
Temporalb ML13ML2054.09113.1398.78
Temporal ML1400.020.07
Temporalbc ML15ML2000.010.02
Temporal ML1600.020.07
Temporal ML1700.010.02
Spatial ML1841.59110.2594.03
Temporal ML1900.591.78
Spatiala ML200.320.230.69
Spatialb ML21ML2041.73104.15104.03
Temporal ML2200.020.03
High Flow
Temporalb MH1MH166.21474
Temporalbc MH2MH1653249
Temporalb MH3MH169.12740
Temporal MH43.52154
Temporal MH52.61937
Temporal MH60.953.59.8
Temporal MH71.11.918
Temporal MH80.742.213
Temporal MH90.792.218
Temporal MH101.74.915
Temporal MH116.91630
Temporal MH128.61137
Spatial MH1384.29139.08121.17
Temporal MH1474.75109.09124.29
Spatial MH155.2248.6525.88
Spatiala MH162.5365.3
Spatial MH171.582.192.38
Spatial MH188.7610.7414.44
Spatial MH19-0.190.320.72
Temporal MH2044.2665.5778.69
Temporalb MH21MH1658.0558.9382.5
Temporal MH2228.836.8752.56
Temporal MH2331.3132.3844.11
Temporal MH241.4318.6616.92
Temporal MH255.4625.0729.23
Temporal MH2612.2332.5840
Temporal MH274.1223.327.69
Frequency
Index Type
Low FlowSurrogate for
Spatialbc FL1FL351114
Spatialb FL2FL339.0454.2163.45
Temporala FL34911
High Flow
Temporal FH1152126
Spatial FH220.5527.2234.68
Temporalac FH3446589
Temporal FH4212848
Temporalb FH5FH3121719
Temporal FH6172024
Temporal FH7131721
Temporal FH8152126
Temporalb FH9FH361014
Temporalb FH10FH3127
Temporalb FH11FH3011
Duration
Index Type
Low FlowSurrogate for
Temporal DL100.020.03
Temporal DL200.020.04
Temporal DL300.030.05
Temporalac DL40.040.080.14
Temporal DL50.130.211.18
Spatial DL641.73104.15104.03
Spatialb DL7DL438.3698.2398.59
Spatial DL836.64103.4790.53
Spatial DL935.1790.1578.06
Spatial DL1034.36104.8277.84
Temporalb DL11DL400.030.05
Temporal DL1200.050.08
Temporal DL130.060.170.21
Temporal DL140.320.290.64
Temporal DL150.10.080.43
Temporalb DL16DL45.147.3110
Spatial DL1737.3666.1671.88
Temporal DL180043
Spatial DL19NC 166.9NC
Spatial DL20NC 0.76NC
High Flow
Temporal DH1548096
Temporalbc DH2DH1424.6729.3343.33
Temporal DH312.519.4323.49
Temporal DH45.758.5810.24
Temporal DH53.784.135.72
Spatial DH641.2651.8560.21
Spatial DH736.8645.2757.76
Spatial DH837.1345.4149.05
Spatial DH931.4739.5440.45
Spatial DH1029.8942.3337.96
Temporal DH1183.08130.91147.69
Temporalb DH12DH1419.2329.9936.13
Spatial DH138.8512.0615.75
Spatiala DH140.060.030.32
Temporal DH152.914.155.39
Spatial DH1633.9349.2969.21
Temporalb DH17DH147.7811.6117.64
Temporal DH182.333.343.71
Temporal DH191.51.682.15
Temporal DH202.914.155.39
Temporal DH211928.258.33
Temporal DH2219.582.5186
Temporalb DH23DH14111.75
Temporal DH2473113197
Timing
Index Type
Average FlowSurrogate for
Spatial TA10.170.410.44
Spatial TA235.9760.5861
Spatial TA30.270.460.41
Low Flow
Spatiala TL1241.02216.82266.87
Spatial TL234.134.7244.78
Spatial TL30.430.50.59
Spatial TL40.010.020.11
High Flow
Spatial TH130.9872.32111.47
Spatialb TH2TH362.7158.2574.66
Spatiala TH30.140.20.32
Rate of Change
Index Type
Average FlowSurrogate for
Temporalb RA1RA70.040.21.9
Spatial RA2187.13310.81274.94
Temporalb RA3RA7-0.5-0.1-0.03
Spatial RA4-372.11-436.37-184.77
Spatial RA50.240.280.27
Temporalb RA6RA70.130.411.22
Temporalac RA7-0.47-0.21-0.1
Temporalb RA8RA7114121132
Spatial RA97.1710.0612.75

a primary index as determined from the New Jersey Hydrologic Integrity Assessment Process (Henriksen and others, 2006; Kennen and others, 2007)
b surrogate index as determined from the New Jersey Hydrologic Integrity Assessment Process (Henriksen and others, 2006; Kennen and others, 2007)
c primary regulatory index for the New Jersey Department of Environmental Protection (J.L. Hoffman, NJDEP, written commun., 2007).

# indicates that site is an index station

* If the index is spatial, percentile values are from the distribution of values for the selected index for all sites of the same stream type if the index is spatial

** These sites are index sites, which are considered to be relatively undeveloped (least amount of urbanization, less than 15% urban landuse) for a long period of record (at least 50 years). The entire period of record for these sites are considered baseline.

NC value could not be calculated