Home Archived February 7, 2019
Site Information
01399510   Upper Cold Brook near Pottersville, NJ
Location:Latitude 40�'16", Longitude 74�'08", Hunterdon County, Hydrologic Unit 02030105, on right bank along a private dirt road, 400 ft downstream from the former Pottersville Reservoir, and 1.5 mi west of Pottersville.
Drainage Area:Continuous Period of Record:RemarksSite Type:Baseline Period of Record:Baseline Quality
2.181972-1996Flow regulated by Pottersville Reservoir, 400 ft above station, until August 1982 when dam was demolished.D1982-1996POOR

Hydrologic Indices
Flow RegimeFlow EventIndex NameIndex Value
Index Type
Average FlowSurrogate for25th Percentile*Value75th Percentile*
Temporal MA11.53.974.4
Temporal MA21.52.74.4
Temporal MA381.01107.16147.9
Spatial MA419.270.665.72
Spatial MA51.271.472.47
Spatial MA66.227.351.29
Spatial MA72.943.6410.86
Spatial MA82.362.937
Spatialb MA9MA390.4122.55
Spatial MA100.271.31.69
Spatial MA110.211.081.41
Temporal MA1234.375.16
Temporalbc MA13MA393.234.446.15
Temporal MA144.045.248.7
Temporal MA154.056.289.3
Temporal MA163.354.456.7
Temporal MA172.012.774.53
Temporal MA181.651.823.02
Temporal MA191.141.742.09
Temporal MA201.291.611.96
Temporal MA211.021.542.66
Temporal MA221.933.584.55
Temporal MA232.673.147.17
Temporal MA2431.8550.2984.28
Temporal MA2536.0769.0581.33
Temporal MA2646.364.9470.02
Temporal MA2728.559.1780.13
Temporal MA2831.7352.8873.85
Temporal MA2939.7255.6673.04
Temporal MA3043.7952.04108
Temporal MA3128.8553.1785.04
Temporal MA3235.5983.4139.54
Temporal MA3328.5347.65103.45
Temporal MA3465.91113.37152.11
Temporal MA3533.6956.8186.5
Spatial MA363.224.856.47
Spatial MA370.851.031.58
Spatial MA381.481.932.77
Spatiala MA3952.3472.1991.65
Spatialb MA40MA390.170.240.33
Temporal MA411.461.822.12
Spatial MA420.91.361.23
Spatial MA430.310.370.48
Spatialb MA44MA390.710.93
Spatial MA45-
Low Flow
Temporalc ML11.92.23.1
Temporalc ML21.92.73.2
Temporalc ML32.53.13.5
Temporalc ML42.63.75
Temporalc ML522.53.3
Temporalc ML61.11.62.2
Temporalc ML70.941.11.6
Temporalc ML80.6811.2
Temporalc ML90.7111.2
Temporalc ML100.810.991.3
Temporalc ML110.841.11.7
Temporalc ML121.51.92.9
Temporalb ML13ML2054.0957.1298.78
Temporal ML140.210.320.38
Temporalbc ML15ML200.160.230.29
Temporal ML160.210.320.38
Temporal ML170.170.240.29
Spatial ML1841.5941.7994.03
Temporal ML1916.4822.4829.36
Spatiala ML200.320.590.69
Spatialb ML21ML2041.7331.09104.03
Temporal ML220.290.390.45
High Flow
Temporalb MH1MH167.21320
Temporalbc MH2MH168.21721
Temporalb MH3MH16131731
Temporal MH48.11938
Temporal MH57.11620
Temporal MH64.86.314
Temporal MH74.15.511
Temporal MH83.64.68
Temporal MH93.55.322
Temporal MH103.13.714
Temporal MH117.92031
Temporal MH125.38.641
Spatial MH1384.29102.68121.17
Temporal MH1413.1315.7119.6
Spatial MH155.229.2625.88
Spatiala MH162.532.75.3
Spatial MH171.581.632.38
Spatial MH188.7611.9814.44
Spatial MH19-
Temporal MH2016.0622.4823.85
Temporalb MH21MH1612.7514.1615.94
Temporal MH224.226.647.62
Temporal MH234.695.385.66
Temporal MH241.263.664.07
Temporal MH253.77.168.15
Temporal MH267.7811.813.33
Temporal MH271.965.035.74
Index Type
Low FlowSurrogate for
Spatialbc FL1FL381015
Spatialb FL2FL339.0457.5563.45
Temporala FL3000
High Flow
Temporal FH1151821
Spatial FH220.5531.7234.68
Temporalac FH3162246
Temporal FH42712
Temporalb FH5FH3122021
Temporal FH6101318
Temporal FH7268
Temporal FH8151821
Temporalb FH9FH371014
Temporalb FH10FH3126
Temporalb FH11FH3124
Index Type
Low FlowSurrogate for
Temporal DL10.640.840.99
Temporal DL20.650.871
Temporal DL30.670.891.09
Temporalac DL40.91.071.45
Temporal DL51.191.742.44
Spatial DL641.7331.09104.03
Spatialb DL7DL438.3631.4398.59
Spatial DL836.6432.2590.53
Spatial DL935.1733.4978.06
Spatial DL1034.3653.3877.84
Temporalb DL11DL40.240.30.37
Temporal DL120.250.330.4
Temporal DL130.340.420.54
Temporal DL140.320.560.64
Temporal DL150.10.370.43
Temporalb DL16DL44.825.88.64
Spatial DL1737.3646.3471.88
Temporal DL18000
Spatial DL19NC0NC
Spatial DL20NC0NC
High Flow
Temporal DH1354952
Temporalbc DH2DH1421.6725.1732.27
Temporal DH312.3714.3623.86
Temporal DH46.48.5514.04
Temporal DH54.736.429.37
Spatial DH641.2650.0760.21
Spatial DH736.8642.6957.76
Spatial DH837.1344.0249.05
Spatial DH931.4744.8840.45
Spatial DH1029.8939.1837.96
Temporal DH1112.9618.5919.26
Temporalb DH12DH144.586.278.84
Spatial DH132.373.65.2
Spatiala DH140.060.260.32
Temporal DH151.954.638.96
Spatial DH1633.9362.7669.21
Temporalb DH17DH146.869.0517.5
Temporal DH181.391.672.56
Temporal DH1911.21.5
Temporal DH201.954.638.96
Temporal DH2118.1527.7342.29
Temporal DH22285887.5
Temporalb DH23DH14124
Temporal DH2473117191
Index Type
Average FlowSurrogate for
Spatial TA10.170.10.44
Spatial TA235.9733.1161
Spatial TA30.270.240.41
Low Flow
Spatiala TL1241.02265.81266.87
Spatial TL234.131.2744.78
Spatial TL30.430.410.59
Spatial TL40.010.030.11
High Flow
Spatial TH130.9812.42111.47
Spatialb TH2TH362.7166.7174.66
Spatiala TH30.140.110.32
Rate of Change
Index Type
Average FlowSurrogate for
Temporalb RA1RA70.20.62.4
Spatial RA2187.13234.18274.94
Temporalb RA3RA7-0.8-0.3-0.1
Spatial RA4-372.11-313.41-184.77
Spatial RA50.240.260.27
Temporalb RA6RA70.070.210.62
Temporalac RA7-0.21-0.1-0.06
Temporalb RA8RA7117126131
Spatial RA97.178.6112.75

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