Home Archived February 7, 2019
(i)
Site Information
01391000   Hohokus Brook at Ho-Ho-Kus, NJ
Location:Latitude 40�'52", Longitude 74�'43", Bergen County, Hydrologic Unit 02030103, on left bank 500 ft upstream from bridge on Maple Avenue in Ho-Ho-Kus, and 3.5 mi upstream from mouth.
Drainage Area:Continuous Period of Record:RemarksSite Type:Baseline Period of Record:Baseline Quality
16.41954-2005Some regulation and diurnal fluctuation at low and medium flows caused by unknown sources, possible sewage treatment plant upstream of gage.C1954-1965GOOD

Hydrologic Indices
Flow RegimeFlow EventIndex NameIndex Value
Magnitude
Index Type
Average FlowSurrogate for25th Percentile*Value75th Percentile*
Temporal MA11127.0532
Temporal MA2111932
Temporal MA390.36106.95129.86
Spatial MA420.3524.435.34
Spatial MA51.431.421.82
Spatial MA66.627.6818.28
Spatial MA73.133.877.18
Spatial MA82.442.914.89
Spatial MA90.580.690.99
Spatial MA100.40.460.66
Spatialb MA11MA240.320.360.53
Temporal MA1221.3324.6637.74
Temporal MA132635.5245.81
Temporal MA1435.3842.1157.73
Temporal MA1524.6344.7852.27
Temporal MA1616.4320.2930.3
Temporal MA1713.3916.0718.2
Temporal MA186.7511.518.84
Temporal MA196.7914.4922.97
Temporal MA2010.4414.4418.58
Temporal MA219.7918.1728.9
Temporal MA2214.9428.4138.44
Temporal MA2318.5822.4740.39
Temporalac MA2439.2860.5392.18
Temporal MA2551.3762.99105.04
Temporal MA2630.9241.7580.31
Temporal MA2732.0243.1366.72
Temporal MA2841.5845.0549.55
Temporal MA2931.4547.5874.98
Temporal MA3046.5770.34107.42
Temporal MA3166.4393.16138.06
Temporal MA3264.8892.67128.42
Temporal MA3335.3282.13110.79
Temporal MA3451.1863.24125.47
Temporal MA3542.6959.1373.74
Spatial MA363.533.555.87
Spatial MA370.840.911.37
Spatial MA381.571.892.43
Spatial MA3956.263.1782.56
Spatialb MA40MA240.140.190.24
Temporal MA411.331.652.1
Spatial MA420.970.821.49
Spatialb MA43MA240.350.510.48
Spatial MA440.690.760.9
Spatialb MA45MA2400.090.05
Low Flow
Temporalc ML112.2514.517.75
Temporalc ML213.2514.521
Temporalac ML318.2522.528
Temporalc ML414.752228
Temporalc ML57.810.514
Temporalc ML65.787.88.7
Temporalc ML73.76.46.9
Temporalc ML83.44.96.78
Temporalc ML94.15.558.1
Temporalc ML105.288.19.53
Temporalc ML117.051416.5
Temporalc ML1210.751418.25
Temporalb ML13ML344.4664.0784.19
Temporal ML140.180.230.32
Temporal ML150.130.180.2
Temporal ML160.180.230.32
Temporal ML170.140.180.2
Spatial ML1827.0322.4266.63
Temporalb ML19ML312.9617.5520.38
Spatialb ML20ML30.450.540.6
Spatial ML2129.0737.9172.65
Temporal ML220.20.240.39
High Flow
Temporal MH150.2592.5171.5
Temporal MH285.25108243.75
Temporal MH378131.5212.5
Temporal MH453.2588.5201.25
Temporal MH538.7549.582.25
Temporal MH627.2536.572.5
Temporal MH7263580.25
Temporal MH827.556159.25
Temporal MH944.755493.75
Temporal MH1026.2564187.25
Temporal MH115095230.75
Temporalb MH12MH1451.7565133.25
Spatialb MH13MH1484.55105.73113.03
Temporalac MH1413.0515.6527.64
Spatial MH158.098.6914.7
Spatialb MH16MH142.862.683.74
Spatialb MH17MH141.711.681.97
Spatial MH187.557.179.25
Spatial MH19-0.061.60.52
Temporal MH2015.1217.9926.6
Temporal MH218.5111.2613.25
Temporal MH223.985.756.01
Temporal MH234.776.125.68
Temporal MH241.283.613.47
Temporal MH253.686.897.92
Temporal MH268.0712.513.16
Temporal MH272.054.784.84
Frequency
Index Type
Low FlowSurrogate for
Spatialac FL11213.519.75
Spatialb FL2FL145.5538.5354.07
Temporalb FL3FL1000
High Flow
Temporal FH115.519.522.75
Spatial FH220.633.7738.63
Temporalbc FH3FH715.252640.75
Temporalb FH4FH734.57
Temporal FH5172025
Temporal FH6101318.25
Temporala FH72.2535.75
Temporal FH815.519.522.75
Temporal FH99.515.517.75
Temporal FH10127.75
Temporalb FH11FH7001
Duration
Index Type
Low FlowSurrogate for
Temporal DL13.246.4
Temporal DL23.474.26.87
Temporal DL33.745.377.7
Temporal DL44.787.759.79
Temporalb DL5DL168.3811.4314.34
Spatial DL629.0737.9172.65
Spatial DL728.5638.0772.94
Spatial DL827.9237.2874.03
Spatialb DL9DL1626.8647.3369.83
Spatial DL1033.5840.5975.08
Temporal DL110.170.240.34
Temporal DL120.20.290.41
Temporal DL130.250.420.52
Temporalb DL14DL160.410.580.66
Temporal DL150.180.350.5
Temporalac DL163.445.019.03
Spatialb DL17DL1641.6350.2465.29
Temporal DL18000
Spatial DL19NC0NC
Spatial DL20NC0NC
High Flow
Temporalbc DH1DH11248295436.25
Temporal DH2144.42169.83282.5
Temporal DH391.5104.29164.38
Temporal DH449.0357.5888.87
Temporal DH533.9140.7151.14
Spatial DH641.8956.0662.51
Spatial DH738.5746.3951.47
Spatial DH835.7841.6845.63
Spatialb DH9DH1129.4728.8742.83
Spatial DH1027.7232.0536.98
Temporala DH1113.0519.9522.96
Temporal DH124.826.738.65
Spatial DH132.583.484.68
Spatialb DH14DH110.10.230.36
Temporal DH152.943.625.55
Spatial DH1638.6246.5655.23
Temporal DH175.829.1212.03
Temporal DH181.791.922.2
Temporal DH191.041.321.5
Temporal DH202.943.625.55
Temporal DH2113.5217.3925.83
Temporal DH2214.1648.75149
Temporalb DH23DH11111.5
Temporal DH24130150162
Timing
Index Type
Average FlowSurrogate for
Spatial TA10.30.410.47
Spatial TA243.7757.4455.12
Spatial TA30.240.50.42
Low Flow
Spatialb TL1TL2253.35225.27263.47
Spatiala TL229.3630.6940.8
Spatial TL30.450.540.9
Spatial TL400.010.04
High Flow
Spatial TH145.75329.2977.15
Spatial TH264.4971.5472.48
Spatiala TH30.110.420.43
Rate of Change
Index Type
Average FlowSurrogate for
Temporalb RA1RA61414
Spatialb RA2RA6213.05260.41260.08
Temporalb RA3RA6-7-3-1
Spatialb RA4RA6-314.5-294.76-249.27
Spatial RA50.260.310.3
Temporalac RA60.10.220.54
Temporal RA7-0.3-0.16-0.08
Temporal RA8123.5128.5138
Spatial RA96.897.3811.53

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