U.S. Department of the Interior

U.S. Geological Survey

Open-File Report 2011–1070

Prepared in cooperation with the Pennsylvania Department of Environmental Protection

Selected Streamflow Statistics for Streamgage Locations 

in and near Pennsylvania
Cover. Tunkhannock Creek and Highway 6 overpass downstream from U.S. Geological Survey 

streamgage 01534000 Tunkhannock Creek near Tunkhannock, PA. (Photo by Andrew Reif, USGS)
Selected Streamflow Statistics for 

Streamgage Locations in and near 

Pennsylvania

By Marla H. Stuckey and Mark A. Roland

Prepared in cooperation with the 

Pennsylvania Department of Environmental Protection

Open-File Report 2011–1070

U.S. Department of the Interior

U.S. Geological Survey
U.S. Department of the Interior

KEN SALAZAR, Secretary

U.S. Geological Survey

Marcia K. McNutt, Director

U.S. Geological Survey, Reston, Virginia: 2011

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reproduce any copyrighted materials contained within this report.

Suggested citation:

Stuckey, M.H., and Roland, M.A., 2011, Selected streamflow statistics for streamgage locations in and near Pennsylvania: U.S. Geological Survey Scientific Investigations Report 2011–1070, 88 p.
iii

Contents

Abstract...........................................................................................................................................................1

Introduction.....................................................................................................................................................1

Purpose and Scope ..............................................................................................................................1

Previous Investigations........................................................................................................................1

Data Collection and Analysis.......................................................................................................................2

Comparison with Previously Reported Streamflow Statistics for Streamgage Locations in 

Pennsylvania.....................................................................................................................................4

Summary..........................................................................................................................................................4

Acknowledgments.........................................................................................................................................4

References Cited............................................................................................................................................5

Figures

1. Map showing location of U.S. Geological Survey streamgage locations with 

updated streamflow statistics ....................................................................................................3

Tables

1. List of U.S. Geological Survey streamgage locations in and near Pennsylvania 

with updated streamflow statistics ...........................................................................................8

2. Selected low-flow statistics for streamgage locations in and near Pennsylvania.........20

3. Selected base-flow statistics for streamgage locations in and near Pennsylvania.......34

4. Selected flood-flow statistics for streamgage locations in and near Pennsylvania ......48

5. Selected mean-flow and flow-duration statistics for streamgage locations in 

and near Pennsylvania ..............................................................................................................60

6. Comparison of streamflow statistics for 72 streamgage locations in Pennsylvania 

to previously reported streamflow statistics .........................................................................88
iv

Conversion Factors

Inch/Pound to SI

Multiply By To obtain

Area

square mile (mi2) 259.0 hectare (ha)

square mile (mi2) 2.590 square kilometer (km2) 

Flow rate

foot per second (ft/s) 0.3048 meter per second (m/s)

cubic foot per second (ft3/s) 0.02832 cubic meter per second (m3/s)

cubic foot per second per square

mile [(ft3/s)/mi2]

 0.01093 cubic meter per second per square

kilometer [(m3/s)/km2]

Vertical coordinate information is referenced to the North American Vertical Datum of 1988 

(NAVD 88).

Horizontal coordinate information is referenced to the North American Datum of 1983 (NAD 83).
Selected Streamflow Statistics for Streamgage Locations 

in and near Pennsylvania

By Marla H. Stuckey and Mark A. Roland

Abstract

Streamflow statistics are used routinely by watershed 

planners, regulators, engineers, and managers for waterresource projects. Streamflow statistics for a streamgage 

can change over time as more flow data become available 

and (or) land use or climate in the watershed changes; consequently, streamflow statistics should be updated periodically. This report, done in cooperation with the Pennsylvania 

Department of Environmental Protection, presents updated 

streamflow statistics for 526 U.S. Geological Survey (USGS) 

continuous-record streamgages in Pennsylvania, New York, 

New Jersey, Delaware, Maryland, West Virginia, and Ohio 

using data collected through 2008. The following statistics are 

presented: low flows (1-day, 10-year; 7-day, 10-year; 7-day, 

2-year; 30-day, 10-year; 30-day, 2-year; and 90-day, 10-year 

low flows), base flows (10-year, 25-year, and 50-year base 

flows), peak flows (50-, 20-, 10-, 4-, 2-, 1-, and 0.2-percent 

annual exceedance flood), mean flows (mean annual flow and 

harmonic mean flow), and flow durations (99-, 95-, 90-, 85-, 

80-, 70-, 60-, 50-, 40-, 30-, 20-, 15-, 10-, 5-, and 1-percent 

exceedance). Streamflow statistics (7-day, 10-year and 30-day, 

10-year low flows; harmonic mean; and 95-, 50-, and 5-percent flow duration exceedances) for 72 streamgage locations 

in Pennsylvania were compared using a Wilcoxon signed-rank 

test to previously reported statistics. A statistically significant 

difference was found between the data sets for the 30-day, 

10-year low-flow; harmonic mean; 50-percent flow-duration 

exceedance; and 5-percent flow-duration exceedance statistics. No significant difference was found between the data 

sets for the 7-day, 10-year low-flow and 95-percent flowduration exceedance statistics. The lower flow statistics show 

a decrease since 1996, and the mid- to higher flows show an 

increase since 1996.

Introduction

Streamflow statistics are used routinely by watershed 

planners, regulators, engineers, and managers for waterresource projects. Low-flow statistics are used to determine 

water availability, water-use allocations, assimilative capacities, and aquatic-habitat needs. Flood-flow statistics are used 

for Flood Insurance Studies (FIS), flood-plain management, and the design of bridges and flood-control structures. 

Streamflow statistics for a streamgage can change over time 

as more data become available or as land use or climate in 

the watershed changes, so streamflow statistics should be 

updated periodically.

Purpose and Scope

This report presents updated streamflow statistics for 

526 U.S. Geological Survey (USGS) continuous-record 

streamgage locations in and near Pennsylvania using data 

collected through the 2008 water yeart. Streamgages from 

Pennsylvania (306), New York (65), New Jersey (28), Delaware (13), Maryland (68), West Virginia (21), and Ohio (25) 

were included in this analysis. The following statistics are 

presented: low flows (1-day, 10-year; 7-day, 10-year; 7-day, 

2-year; 30-day, 10-year; 30-day, 2-year; and 90-day, 10-year 

low flows), base flows (10-year, 25-year, and 50-year base 

flows), peak flows (50-, 20-, 10-, 4-, 2-, 1-, and 0.2-percent 

annual exceedance flood), mean flows (mean annual flow and 

harmonic mean flow), and flow durations (99-, 95-, 90-, 85-, 

80-, 70-, 60-, 50-, 40-, 30-, 20-, 15-, 10-, 5-, and 1- percent 

exceedance). This development of updated streamflow statistics was done in cooperation with the Pennsylvania Department of Environmental Protection (PaDEP). The selection 

of streamgage locations was determined by the need from 

PaDEP for updated streamflow information at reference sites 

to assist in permit application review. Streamflow statistics for 

streamgages in Pennsylvania will be displayed on the webbased application Pennsylvania StreamStats (Stuckey and 

Hoffman, 2010).

Previous Investigations

Streamflow statistics for USGS streamgage locations in 

Pennsylvania have been published in many USGS reports. 

Stuckey (2006) developed low-flow, base-flow, and mean-flow 

1

 Water year is defined as a 12-month period beginning October 1 and ending September 30. The water year is designated by the calendar year in which 

it ends.
2 Selected Streamflow Statistics for Streamgage Locations in and near Pennsylvania

regression equations and reported statistics for 293 continuous-record and partial-record streamgages using data through 

the 2002 climatic year2. Roland and Stuckey (2008) developed 

flood-flow regression equations and reported flood-flow statistics for 306 continuous-record and crest-stage streamgages 

using data through the 2005 or 2006 water year. Low-flow 

and flood-flow statistics for additional streamgages not 

included in the previously mentioned reports were published 

by Ehlke and Reed (1999). Flow durations were published 

by Page and Shaw (1977) for continuous-record and miscellaneous streamgages with sufficient data through the 1972 

water year, and Wolock (2003) computed streamflow statistics, including flow durations, for the conterminous United 

States. Streamflow statistics for Pennsylvania streamgages 

also may be found in USGS reports published from surrounding states. Guidance on techniques regarding weighting and 

transference of flood-flow statistics is described by Stuckey 

and Reed (2000) and for low-flow statistics in documentation 

found at the USGS-PA Low-Flow Statistics web application 

(http://paapps.er.usgs.gov/flowstats/).

Similar reports have also been published by surrounding 

states and present streamflow statistics for gaged locations. 

Peak-flow statistics for streamgage locations in New York 

are presented by Lumia and others (2006) and also by Suro 

and others (2009). Flood magnitude and frequencies were 

published by Schopp and Firda (2008) for the streamgages 

on the Delaware River mainstem. Watson and Schopp (2009) 

presented peak-flow statistics for streamgage locations in 

New Jersey using data through the 2007 water year. Peakflow statistics for Delaware streamgages were published in 

2006 by Ries and Dillow. Peak-flow statistics for Maryland 

streamgage locations were presented by Dillow (1995). 

Doheny and Banks (2010) presented low-flow statistics and 

Ries (2006) presented low-flow and flow-duration statistics 

for Maryland streamgages. Low-flow and flow-duration 

statistics for streamgage locations in West Virginia were 

computed by Wiley (2006) using a common period of record, 

and peak-flow statistics were presented by Wiley and Atkins 

(2010). Koltun (2003) presented flood-peak discharges for 

rural, unregulated streamgages in Ohio.

Data Collection and Analysis

Streamflow data collected through the 2008 water year 

for 526 continuous-record streamgages in and near Pennsylvania with a minimum of 9 years of data were selected for 

this analysis (fig. 1; table 1, at end of report). Streamgages 

with periods of record affected by upstream regulation 

were split into pre-regulation and post-regulation periods. 

Streamflow statistics were determined for both the pre- and 

post-regulation periods, when the period had at least 9 years of 

data. Periods of regulation were determined from USGS peakflow files, indicating known regulation of flow, previously 

published USGS reports, and engineering judgment. Classification of known regulation as noted in the peak flow files 

generally was used if upstream reservoirs controlled more than 

10 percent of the drainage area at the streamgage. Regulation 

is identified for each streamgage in table 1.

After the appropriate period of record was determined 

for each streamgage, daily flow values were retrieved from the 

USGS National Water Information System Web (NWISWeb) 

(U.S. Geological Survey, 2002) using software described by 

Granato (2009). A limitation to the version of the software 

used is that data prior to the year 1900 can not be retrieved. 

Therefore, data prior to 1900 for two streamgages were not 

used in the analysis. The files were reviewed for completeness 

and accuracy and entered into a watershed data management 

(WDM) file (Lumb and others, 1990). 

Peak-flow data for each streamgage were retrieved from 

NWISWeb using the batch download option, excluding partial 

peaks. The retrieved peak-flow files contain one peak per 

year for the systematic record and any peaks recorded outside 

the systematic record, termed historical peaks. Peak flows 

recorded on a stream with regulated flow and any historical 

peaks are identified with codes in the file. The peak-flow files 

were reviewed for accuracy and completeness, and regulation 

and historical peak codes were noted. Historical peaks generally were included unless the peak was questionable or was 

not believed to have been the largest peak during the historical 

period. Streamgages unaffected by upstream regulation that 

were included in the recent flood-flow regression analysis for 

Pennsylvania (Roland and Stuckey, 2008) were not updated 

because of minimal increase of data. Flood-flow statistics were 

also not updated for streamgages in New York, New Jersey, 

Delaware, and West Virginia because of recent publications 

and revised regional skews used in those states.

Utilizing the WDM file, daily flow values from stream 

data recorded at each streamgage were entered into the USGS 

Surface Water Statistics (SWSTAT) software to calculate 

low-flow n-day, T-year statistics, flow durations, and the mean 

annual flow. To determine the base-flow statistics, the daily 

flow values from each streamgage were first separated into 

base-flow and surface-runoff components using the local-minimum method in the hydrograph separation computer program 

HYSEP (Sloto and Crouse, 1996). HYSEP limits the number 

of years of record to 100 years; 19 streamgages had records 

longer than 100 years, but only data from the most recent 

100 years were used in the analysis. The adjusted daily flow 

value datasets were then entered into SWSTAT to calculate 

the base-flow statistics. Flood-flow statistics were determined 

using the USGS Peak Flow Frequency (PKFQWin) software 

for Windows (Flynn and others, 2006). Harmonic mean was 

determined using the U.S. Environmental Protection Agency 

DFLOW software (http://www.epa.gov/waterscience/models/

dflow/) utilizing file-preparation software developed by 

Granato (2009).

2

 Climatic year is defined as 12-month period beginning April 1 and ending 

March 31. The climatic year is designated by the calendar year in which it 

ends.
Data Collection and Analysis 

3

0 25 50 KILOMETERS

0 25 50 MILES

EXPLANATION

County boundary—Shown only for PennsylvaniaLocation of U.S. Geological Survey streamgage

OHIO

WEST VIRGINIA

VIRGINIA DISTRICT OF 

COLUMBIA

MARYLAND

DELAWARE

NEW JERSEY

PENNSYLVANIA

NEW YORK

42°

41°

40°

39°

81° 80° 79° 78° 77° 76° 75° 74°

Base from U.S. Geological Survey 1:2,000,000 and 1:100,000 digital data

Figure 1. Location of U.S. Geological Survey streamgage locations with updated streamflow statistics.
4 Selected Streamflow Statistics for Streamgage Locations in and near Pennsylvania

The USGS software described above is publicly available 

on the web at http://water.usgs.gov/osw/methods.html. Standard options available in these programs were used to generate 

the statistics. Low-flow statistics were determined using methods described by Riggs (1972) and Matalas (1963). Flood-flow 

statistics were determined using methods described by the 

Water Resources Council, Hydrology Committee (1981) and 

implemented in the PKFQWin software. The weighted skew 

option within PKFQWin was used to determine the flood-flow 

frequencies for unregulated streams; the station skew was used 

to determine flood-flow frequencies for regulated streams. 

The Log-Pearson Type III frequency distribution was fit to 

the data using method of moments (mean, standard deviation, and coefficient of skewness) with adjustments for the 

flood flows for low outliers, high outliers, historic peaks, and 

generalized skew.

The resultant streamflow statistics for the 526 

streamgages are listed in tables 2–5 (at end of report). If the 

period of record is split for a streamgage because of regulation, the streamgage is listed more than once in the table. The 

individual period of record used to compute the different statistics for the same streamgage may differ slightly depending 

on whether or not historical peak(s) were included in the computation, the type of year (climatic or water) used to compute 

the statistic, or regulation occurring at different flow regimes. 

Comparison with Previously Reported 

Streamflow Statistics for Streamgage 

Locations in Pennsylvania

The streamflow statistics generated from this analysis 

were compared to previously reported streamflow statistics 

to determine if there is a significant change and whether the 

statistics have increased or decreased. Seventy-two current continuous-record streamgages with data through the 

2008 water year and unregulated flow were selected for this 

comparison. The 7-day, 10-year low flow (7Q10), 30-day, 

10-year low flow (30Q10), harmonic mean, and 95-, 50-, 

and 5-percent flow-duration exceedance (P95, P50, and P5, 

respectively) for the 72 streamgages were compared to flow 

statistics published by Ehlke and Reed (1999), which used 

streamflow data through the 1995 or 1996 climatic year. 

Flood-flow statistics were excluded from this comparison 

because most of the 72 streamgages were not updated as part 

of the current analysis.

A Wilcoxon signed-rank test was used to determine if 

there was a significant change in the median value of the six 

flow statistics from 1996 to 2008. (Helsel and Hirsch, 1993). 

The analysis was done using a 95-percent confidence level 

(alpha=0.05). The change in median streamflow statistics 

since 1996 and the results of the Wilcoxon signed-rank test are 

shown in table 6 (at end of report). This change in streamflow 

characteristic was determined from the median difference 

between the data sets and is depicted as an increase or 

decrease in the flow characteristic. A significant difference was 

found between the data sets for the 30Q10, harmonic mean, 

P50, and P5 statistics; no significant difference was found 

between the data sets for the 7Q10 and P95 statistics. The 

lower flow statistics (7Q10, 30Q10, and P95) show a decrease 

since 1996, and the mid- to higher flows (harmonic mean, 

P50, and P5) show an increase since 1996. This can be partly 

attributed to the drought conditions experienced by much of 

Pennsylvania in the late 1990s and early 2000s and the large 

flood events of 1999, 2004, and 2006.

Summary

Streamflow statistics are used routinely by water-resource 

professionals for a variety of purposes, including water-use 

allocations, aquatic-habitat needs, flood-plain management, 

and the design of bridges and flood-control structures. Streamflow statistics for a streamgage can change over time as more 

data become available and (or) as land use or climate in the 

watershed changes; consequently, streamflow statistics should 

be updated periodically. In cooperation with the Pennsylvania 

Department of Environmental Protection, this report presents 

updated streamflow statistics for 526 U.S. Geological Survey 

(USGS) continuous-record streamgages in Pennsylvania, New 

York, New Jersey, Delaware, Maryland, West Virginia, and 

Ohio. The following streamflow statistics were updated: low 

flows (1-day, 10-year; 7-day, 10-year; 7-day, 2-year; 30-day, 

10-year; 30-day, 2-year; and 90-day, 10-year low flows), base 

flows (10-year, 25-year, and 50-year base flows), peak flows 

(50-, 20-, 10-, 4-, 2-, 1-, and 0.2-percent annual exceedance 

flood), mean flows (mean annual flow and harmonic mean 

flow), and flow durations (99-, 95-, 90-, 85-, 80-, 70-, 60-, 50-, 

40-, 30-, 20-, 15-, 10-, 5-, and 1-percent exceedance). 

Streamflow statistics (7-day, 10-year and 30-day, 10-year 

low flows; harmonic mean; and 95-, 50-, and 5-percent flow 

duration exceedances) for 72 streamgage locations in Pennsylvania were compared using a Wilcoxon signed-rank test 

to previously reported statistics. A significant difference was 

found between the data sets for the 30-day, 10-year; harmonic 

mean; 50-percent flow-duration exceedance; and 5-percent 

flow-duration exceedance statistics; no significant difference 

was found between the data sets for the 7-day, 10-year lowflow and 95-percent flow-duration exceedance statistics. The 

lower flow statistics show a decrease since 1996, and the midto higher flows show an increase since 1996.

Acknowledgments

Special thanks are extended to the Pennsylvania Water 

Science Center (and New York, New Jersey, Delaware, 

Maryland, West Virginia, and Ohio) Hydrologic Surveillance 

Program staffs for their compilation and meticulous review 
References Cited 5

of streamgage data used to determine the streamflow statistics. Thanks also to Gregory Granato (Massachusetts Water 

Science Center) for developing software that assisted with 

data preparation, Edward Koerkle (Pennsylvania Water Science Center) for script development and statistical expertise, 

and Scott Hoffman (Pennsylvania Water Science Center) for 

GIS assistance. Clinton Hittle and Peter Cinotto of the USGS 

provided technical reviews of the manuscript. Gary Firda, Ed 

Doheny, Jeff Wiley, and Greg Koltun of the USGS provided 

review of statistics for streamgages in New York, Maryland 

and Delaware, West Virginia, and Ohio, respectively.

References Cited

Doheny, E.J., and Banks, W.S.L., 2010, Selected low-flow 

frequency statistics for continuous-record streamgage locations in Maryland, 2010: U.S. Geological Survey Open-File 

Report 2010–1310, 22 p.

Dillow, J.A., 1995, Technique for estimating magnitude and 

frequency of peak flows in Maryland: U.S. Geological Survey Water Resources Investigations Report 95–4154, 55 p.

Ehlke, M.H., and Reed, L.A., 1999, Comparison of methods for computing streamflow statistics for Pennsylvania 

streams: U.S. Geological Survey Water-Resources Investigations Report 99–4068, 80 p.

Flynn, K.M., Kirby, W.H., Mason, R.R., and Cohn, T.A., 

2006, Estimating magnitude and frequency of floods using 

the PeakFQ program: U.S. Geological Survey Fact Sheet 

2006–3143, 2 p.

Granato, G.E., 2009, Computer programs for obtaining and 

analyzing daily mean streamflow data from the U.S. Geological Survey National Water Information System Web 

Site: U.S. Geological Survey Open-File Report 2008–1362, 

123 p. on CD-ROM, 5 appendixes.

Helsel, D.R., and Hirsch, R.M., 1993, Statistical methods in 

water resources: Amsterdam, The Netherlands, Elsevier, 

Sarah Burgerhartstraat 25, 1000 AE Studies in Environmental Science 49, 529 p.

Koltun, G.F., 2003, Techniques for estimating flood-peak discharges of rural, unregulated streams in Ohio: U.S. Geological Survey Water-Resources Investigations Report 03–4164, 

76 p.

Lumb, A.M., Kittle, J.L., Jr., and Flynn, K.M., 1990, Users 

manual for ANNIE, a computer program for interactive 

hydrologic analyses and data management: U.S. Geological 

Survey Water-Resources Investigations Report 89–4080, 

236 p.

Lumia, Richard, Freehafer, D.A., and Smith, M.J., 2006, 

Magnitude and frequency of floods in New York: U.S. Geological Survey Scientific Investigations Report 2006–5112, 

152 p.

Matalas, N.C., 1963, Probability distribution of low flows: 

U.S. Geological Survey Professional Paper 434–A, 27 p.

Page, L.V., and Shaw, L.C., 1977, Low-flow statistics of Pennsylvania streams: Pennsylvania Department of Environmental Resources, Water Resources Bulletin No. 12, 441 p.

Riggs, H.C., 1972, Low-flow investigations: U.S. Geological Survey Techniques of Water-Resources Investigations, 

book 4, chap. B1, 18 p.

Ries, K.G., III, and Dillow, J.J.A., 2006, Magnitude and 

frequency of floods on nontidal streams in Delaware: U.S. 

Geological Survey Scientific Investigations Report 2006–

5146, 59 p.

Roland, M.A., and Stuckey, M.H., 2008, Regression equations 

for estimating magnitude and frequency of peak flows for 

ungaged streams in Pennsylvania: U.S. Geological Survey 

Scientific Investigations Report 2008–5102, 76 p.

Schopp, R.D., and Firda, G.D., 2008, Flood magnitude and 

frequency of the Delaware River in New Jersey, New York, 

and Pennsylvania: U.S. Geological Survey Open-File 

Report 2008–1203, 7 p.

Sloto, R.A., and Crouse, M.Y., 1996, HYSEP—A computer 

program for streamflow hydrograph separation and analysis: 

U.S. Geological Survey Water-Resources Investigations 

Report 96–4040, 46 p.

Stuckey, M.H., and Hoffman, S.A., 2010, Pennsylvania 

StreamStats: A web-based application for obtaining waterresource-related information: U.S. Geological Survey Fact 

Sheet 2010–3086, 2 p.

Stuckey, M.H., 2006, Low-flow, base-flow, and mean-flow 

regression equations for Pennsylvania streams: U.S. Geological Survey Scientific Investigations Report 2006–5130, 

84 p.

Stuckey, M.H., and Reed, L.A., 2000, Techniques for estimating magnitude and frequency of peak flows for Pennsylvania streams: U.S. Geological Survey Water-Resources 

Investigations Report 00–4189, 43 p.

Suro, T.P., Firda, G.D., and Szabo, C.O., 2009, Flood of June 

26-29, 2006, Mohawk, Delaware, and Susquehanna River 

Basins, New York: U.S. Geological Survey Open-File 

Report 2009-1063, 354 p.

U.S. Geological Survey, 2002, NWISWeb—New site for the 

Nation’s water data: U.S. Geological Survey Fact Sheet 

128–02, 2 p.
6 Selected Streamflow Statistics for Streamgage Locations in and near Pennsylvania

Water Resources Council, Hydrology Committee, 1981, 

Guidelines for determining flood flow frequencies: Washington, D.C., Bulletin 17B, variously paged.

Watson, K.M., and Schopp, R.D., 2009, Methodology for estimation of flood magnitude and frequency for New Jersey 

streams: U.S. Geological Survey Scientific Investigations 

Report 2009–5167, 51 p.

Wiley, J.B., and Atkins, J.T., Jr., 2010, Estimation of floodfrequency discharges for rural, unregulated streams in West 

Virginia: U.S. Geological Survey Scientific Investigations 

Report 2010–5033, 78 p.

Wiley, J.B., 2006, Low-flow analysis and selected flow statistics representative of 1930–2002 for streamflow-gaging 

stations in or near West Virginia: U.S. Geological Survey 

Scientific Investigations Report 2006–5002, 190 p.

Wolock, D.M., 2003, Flow characteristics at U.S. Geological Survey streamgages in the conterminous United 

States: U.S. Geological Survey Open-File Report 03–146, 

digital data set, available at http://water.usgs.gov/lookup/

getspatial?qsitesdd.
 

7

Tables 1–6
8 Selected Streamflow Statistics for Streamgage Locations in and near Pennsylvania

Table 1. List of U.S. Geological Survey streamgage locations in and near Pennsylvania with updated streamflow statistics.—Continued

[Latitude and Longitude in decimal degrees; mi2, square miles]

Streamgage 

number Streamgage name Latitude Longitude

Drainage 

area

(mi2)

Regulated1

01411456 Little Ease Run near Clayton, N.J. 39.659 -75.068 9.77 N

01411500 Maurice River at Norma, N.J. 39.496 -75.077 112 N

01412000 Menantico Creek near Millville, N.J. 39.419 -74.966 23.2 N

01412800 Cohansey River at Seeley, N.J. 39.473 -75.256 28.0 N

01413500 East Branch Delaware River at Margaretville, N.Y. 42.145 -74.653 163 N

01414000 Platte Kill at Dunraven, N.Y. 42.133 -74.695 34.9 N

01414500 Mill Brook near Dunraven, N.Y. 42.106 -74.730 25.2 N

01415000 Tremper Kill near Andes, N.Y. 42.120 -74.818 33.2 N

01417000 East Branch Delaware River at Downsville, N.Y. 42.075 -74.976 372 Y

01417500 East Branch Delaware River at Harvard, N.Y. 42.025 -75.119 458 Y

01420000 Little Beaver Kill near Livingston Manor, N.Y. 41.873 -74.797 20.1 N

01420500 Beaver Kill at Cooks Falls, N.Y. 41.946 -74.980 241 N

01421000 East Branch Delaware River at Fishs Eddy, N.Y. 41.973 -75.174 784 Y

01421900 West Branch Delaware River upstream from Delhi, N.Y. 42.280 -74.907 134 N

01422500 Little Delaware River near Delhi, N.Y. 42.252 -74.902 49.8 N

01423000 West Branch Delaware River at Walton, N.Y. 42.166 -75.140 332 N

0142400103 Trout Creek near Trout Creek, N.Y. 42.174 -75.279 20.2 N

01425000 West Branch Delaware River at Stilesville, N.Y. 42.075 -75.396 456 Y

01425675 Oquaga Creek near North Sanford, N.Y. 42.175 -75.440 4.69 N

01426000 Oquaga Creek at Deposit, N.Y. 42.059 -75.428 67.6 N

01426500 West Branch Delaware River at Hale Eddy, N.Y. 42.003 -75.384 595 Y

01427500 Callicoon Creek at Callicoon, N.Y. 41.761 -75.048 110 N

01427510 Delaware River at Callicoon, N.Y. 41.757 -75.057 1,820 Y

01428500 Delaware River above Lackawaxen River near Barryville, N.Y. 41.509 -74.986 2,020 Y

01428750 West Branch Lackawaxen River near Aldenville, Pa. 41.675 -75.376 40.6 N

01429000 West Branch Lackawaxen River at Prompton, Pa. 41.587 -75.327 59.7 Y

01429500 Dyberry Creek near Honesdale, Pa. 41.607 -75.267 64.6 Y

01430000 Lackawaxen River near Honesdale, Pa. 41.562 -75.248 164 Y

01430500 Lackawaxen River at West Hawley, Pa. 41.486 -75.187 206 N

01431000 Middle Creek near Hawley, Pa. 41.485 -75.222 78.4 N

01431500 Lackawaxen River at Hawley, Pa. 41.476 -75.172 290 Y

01432000 Wallenpaupack Creek at Wilsonville, Pa. 41.459 -75.185 228 Y

01433500 Mongaup River near Mongaup, N.Y. 41.461 -74.759 200 Y

01434000 Delaware River at Port Jervis, N.Y. 41.371 -74.697 3,070 Y

0143400680 East Branch Neversink River northeast of Denning, N.Y. 41.967 -74.448 8.93 N

01434017 East Branch Neversink River near Claryville, N.Y. 41.925 -74.540 22.9 N

01434021 W Branch Neversink River at Winnisook L near Frost Valley, N.Y. 42.011 -74.414 .77 N

01434025 Biscuit BK above Pigeon BK at Frost Valley, N.Y. 41.995 -74.501 3.72 N

01434498 West Branch Neversink River at Claryville, N.Y. 41.920 -74.575 33.8 N

01435000 Neversink River near Claryville, N.Y. 41.890 -74.590 66.6 N

01436000 Neversink River at Neversink, N.Y. 41.820 -74.635 92.6 Y

01436500 Neversink River at Woodbourne, N.Y. 41.757 -74.597 113 Y

01436690 Neversink River at Bridgeville, N.Y. 41.638 -74.617 171 Y

01437500 Neversink River at Godeffroy, N.Y. 41.441 -74.602 307 Y

01438500 Delaware River at Montague, N.J. 41.309 -74.795 3,480 Y
Table 1 9

Table 1. List of U.S. Geological Survey streamgage locations in and near Pennsylvania with updated streamflow statistics.—Continued

[Latitude and Longitude in decimal degrees; mi2, square miles]

Streamgage 

number Streamgage name Latitude Longitude

Drainage 

area

(mi2)

Regulated1

01439500 Bush Kill at Shoemakers, Pa. 41.088 -75.038 117 N

01440000 Flat Brook near Flatbrookville, N.J. 41.106 -74.953 64.0 N

01440200 Delaware River near Delaware Water Gap, Pa. 41.013 -75.086 3,850 Y

01440400 Brodhead Creek near Analomink, Pa. 41.085 -75.215 65.9 N

01441000 McMichael Creek near Stroudsburg, Pa. 40.979 -75.201 65.3 N

01442500 Brodhead Creek at Minisink Hills, Pa. 40.999 -75.143 259 N

01443280 East Branch Paulins Kill near Lafayette, N.J. 41.076 -74.695 13.0 N

01443500 Paulins Kill at Blairstown, N.J. 40.981 -74.953 126 N

01443900 Yards Creek near Blairstown, N.J. 40.981 -75.039 5.34 N

01445000 Pequest River at Huntsville, N.J. 40.981 -74.776 31.0 N

01445500 Pequest River at Pequest, N.J. 40.831 -74.978 106 N

01446000 Beaver Brook near Belvidere, N.J. 40.843 -75.046 36.7 N

01446500 Delaware River at Belvidere, N.J. 40.826 -75.083 4,535 Y

01446600 Martins Creek near East Bangor, Pa. 40.900 -75.202 10.4 N

01447500 Lehigh River at Stoddartsville, Pa. 41.130 -75.625 91.7 N

01447680 Tunkhannock Creek near Long Pond, Pa. 41.065 -75.522 20.0 LF

01447720 Tobyhanna Creek near Blakeslee, Pa. 41.085 -75.605 118 LF

01447800 Lehigh River below Francis E Walter Res near White Haven, Pa. 41.105 -75.732 290 Y

01448000 Lehigh River at Tannery, Pa. 41.040 -75.761 322 N

01448500 Dilldown Creek near Long Pond, Pa. 41.036 -75.543 2.39 N

01449000 Lehigh River at Lehighton, Pa. 40.829 -75.705 591 Y

01449360 Pohopoco Creek at Kresgeville, Pa. 40.898 -75.502 49.9 N

01449800 Pohopoco Creek below Beltzville Dam near Parryville, Pa. 40.846 -75.646 96.4 Y

01450500 Aquashicola Creek at Palmerton, Pa. 40.806 -75.598 76.7 N

01451000 Lehigh River at Walnutport, Pa. 40.757 -75.603 889 Y

01451500 Little Lehigh Creek near Allentown, Pa. 40.582 -75.483 80.8 N

01451650 Little Lehigh Creek at Tenth St. Br. at Allentown, Pa. 40.596 -75.474 98.2 N

01451800 Jordan Creek near Schnecksville, Pa. 40.662 -75.627 53.0 N

01452000 Jordan Creek at Allentown, Pa. 40.623 -75.482 75.8 N

01452500 Monocacy Creek at Bethlehem, Pa. 40.641 -75.379 44.5 N

01453000 Lehigh River at Bethlehem, Pa. 40.615 -75.379 1,279 Y

01454700 Lehigh River at Glendon, Pa. 40.669 -75.236 1,359 Y

01455160 Brass Castle Creek near Washington, N.J. 40.765 -75.018 2.34 N

01455500 Musconetcong River at outlet of Lake Hopatcong, N.J. 40.917 -74.666 25.3 N

01457000 Musconetcong River near Bloomsbury, N.J. 40.672 -75.061 141 N

01459500 Tohickon Creek near Pipersville, Pa. 40.434 -75.117 97.4 Y

01463500 Delaware River at Trenton, N.J. 40.222 -74.778 6,780 Y

01463620 Assunpink Creek near Clarksville, N.J. 40.270 -74.672 34.3 N

01464000 Assunpink Creek at Trenton, N.J. 40.224 -74.749 90.6 N

01464500 Crosswicks Creek at Extonville, N.J. 40.137 -74.6 81.5 N

01464645 NB Neshaminy Creek bl Lake Galena nr New Britain, Pa. 40.312 -75.207 16.2 Y

01464720 NB Neshaminy Creek at Chalfont, Pa. 40.288 -75.204 31.5 Y

01465000 Neshaminy Creek at Rushland, Pa. 40.255 -75.033 134 N

01465500 Neshaminy Creek near Langhorne, Pa. 40.174 -74.957 210 N

01465770 Poquessing Creek at Trevose Road, Phila., Pa. 40.132 -74.994 5.08 N
10 Selected Streamflow Statistics for Streamgage Locations in and near Pennsylvania

Table 1. List of U.S. Geological Survey streamgage locations in and near Pennsylvania with updated streamflow statistics.—Continued

[Latitude and Longitude in decimal degrees; mi2, square miles]

Streamgage 

number Streamgage name Latitude Longitude

Drainage 

area

(mi2)

Regulated1

01465780 Poquessing Creek above Byberry Creek at Phila., Pa. 40.070 -74.975 13.2 N

01465798 Poquessing Creek at Grant Ave. at Philadelphia, Pa. 40.057 -74.985 21.4 N

01465850 South Branch Rancocas Creek at Vincentown, N.J. 39.94 -74.763 64.5 N

01466500 McDonalds Branch in Byrne State Forest, N.J. 39.885 -74.505 2.35 N

01467000 North Branch Rancocas Creek at Pemberton, N.J. 39.97 -74.684 118 N

01467042 Pennypack Creek at Pine Road, at Philadelphia, Pa. 40.090 -75.069 37.9 N

01467048 Pennypack Creek at Lower Rhawn St Bdg, Phila., Pa. 40.050 -75.033 49.8 N

01467050 Wooden Bridge Run at Philadelphia, Pa. 40.055 -75.022 3.35 N

01467081 South Branch Pennsauken Creek at Cherry Hill, N.J. 39.942 -75.001 8.98 N

01467086 Tacony Creek ab Adams Avenue, Philadelphia, Pa. 40.047 -75.111 16.7 N

01467087 Frankford Creek at Castor Ave, Philadelphia, Pa. 40.016 -75.097 30.4 N

01467089 Frankford Creek at Torresdale Ave., Phila., Pa. 40.007 -75.092 33.8 N

01467150 Cooper River at Haddonfield, N.J. 39.903 -75.021 17.0 N

01467500 Schuylkill River at Pottsville, Pa. 40.684 -76.186 53.4 N

01468500 Schuylkill River at Landingville, Pa. 40.629 -76.125 133 N

01469500 Little Schuylkill River at Tamaqua, Pa. 40.807 -75.972 42.9 N

01470500 Schuylkill River at Berne, Pa. 40.523 -75.998 355 N

01470756 Maiden Creek at Virginville, Pa. 40.514 -75.883 159 N

01470779 Tulpehocken Creek near Bernville, Pa. 40.413 -76.172 66.5 N

01470853 Furnace Creek at Robesonia, Pa. 40.340 -76.143 4.18 N

01470960 Tulpehocken Creek at Blue Marsh Damsite near Reading, Pa. 40.371 -76.025 175 Y

01471000 Tulpehocken Creek near Reading, Pa. 40.369 -75.979 211 Y

01471510 Schuylkill River at Reading, Pa. 40.335 -75.936 880 Y

01471875 Manatawny Creek near Spangsville, Pa. 40.340 -75.742 56.9 N

01471980 Manatawny Creek near Pottstown, Pa. 40.273 -75.680 85.5 N

01472000 Schuylkill River at Pottstown, Pa. 40.242 -75.652 1,147 Y

01472157 French Creek near Phoenixville, Pa. 40.151 -75.601 59.1 N

01472174 Pickering Creek near Chester Springs, Pa. 40.090 -75.630 5.98 N

01472198 Perkiomen Creek at East Greenville, Pa. 40.394 -75.515 38.0 N

01472199 West Branch Perkiomen Creek at Hillegass, Pa. 40.374 -75.522 23.0 N

01472500 Perkiomen Creek near Frederick, Pa. 40.275 -75.455 152 N

01472620 East Branch Perkiomen Creek near Dublin, Pa. 40.404 -75.234 4.05 LF

01472810 East Branch Perkiomen Creek near Schwenksville, Pa. 40.259 -75.429 58.7 LF

01473000 Perkiomen Creek at Graterford, Pa. 40.230 -75.452 279 LF

01473120 Skippack Creek near Collegeville, Pa. 40.165 -75.433 53.7 N

01473169 Valley Creek at Pa. Turnpike Br near Valley Forge, Pa. 40.079 -75.461 20.8 N

01473500 Schuylkill River at Norristown, Pa. 40.111 -75.347 1,760 N

01473900 Wissahickon Creek at Fort Washington, Pa. 40.124 -75.220 40.8 N

01473950 Wissahickon Creek at Bells Mill Rd, Phila., Pa. 40.080 -75.226 53.6 N

01473980 Wissahickon Creek at Livezey Lane, Phila., Pa. 40.050 -75.214 59.2 N

01474000 Wissahickon Creek at Mouth, Philadelphia, Pa. 40.015 -75.207 64.0 N

01474500 Schuylkill River at Philadelphia, Pa. 39.968 -75.189 1,893 N

01475000 Mantua Creek at Pitman, N.J. 39.737 -75.113 6.05 N

01475300 Darby Creek at Waterloo Mills near Devon, Pa. 40.023 -75.422 5.15 N

01475510 Darby Creek near Darby, Pa. 39.929 -75.272 37.4 N
Table 1 11

Table 1. List of U.S. Geological Survey streamgage locations in and near Pennsylvania with updated streamflow statistics.—Continued

[Latitude and Longitude in decimal degrees; mi2, square miles]

Streamgage 

number Streamgage name Latitude Longitude

Drainage 

area

(mi2)

Regulated1

01475530 Cobbs Creek at U.S. Highway No. 1 at Philadelphia, Pa. 39.975 -75.280 4.78 N

01475540 Cobbs Creek below Indian Creek near Upper Darby, Pa. 39.965 -75.258 9.65 N

01475550 Cobbs Creek at Darby, Pa. 39.917 -75.247 22.0 N

01475850 Crum Creek near Newtown Square, Pa. 39.976 -75.437 15.8 N

01476480 Ridley Creek at Media, Pa. 39.916 -75.403 30.5 N

01476500 Ridley Creek at Moylan, Pa. 39.903 -75.393 31.9 N

01477000 Chester Creek near Chester, Pa. 39.869 -75.408 61.1 N

01477120 Raccoon Creek near Swedesboro, N.J. 39.741 -75.259 26.9 N

01477800 Shellpot Creek at Wilmington, Del. 39.761 -75.519 7.46 N

01478000 Christina River at Coochs Bridge, Del. 39.637 -75.728 20.5 LF

01478500 White Clay Creek above Newark, Del. 39.714 -75.759 66.7 N

01479000 White Clay Creek near Newark, Del. 39.699 -75.675 89.1 LF

01479820 Red Clay Creek near Kennett Square, Pa. 39.817 -75.692 28.3 N

01480000 Red Clay Creek at Wooddale, Del. 39.763 -75.637 47.0 N

01480015 Red Clay Creek near Stanton, Del. 39.716 -75.640 52.4 N

01480100 Little Mill Creek at Elsmere, Del. 39.735 -75.587 6.70 N

01480300 West Branch Brandywine Creek near Honey Brook, Pa. 40.073 -75.861 18.7 N

01480500 West Branch Brandywine Creek at Coatesville, Pa. 39.986 -75.827 45.8 LF

01480617 West Branch Brandywine Creek at Modena, Pa. 39.962 -75.801 55.0 N

01480675 Marsh Creek near Glenmoore, Pa. 40.098 -75.742 8.57 N

01480680 Marsh Creek near Lyndell, Pa. 40.066 -75.727 17.8 N

01480685 Marsh Creek near Downingtown, Pa. 40.055 -75.716 20.3 Y

01480700 East Branch Brandywine Creek near Downingtown, Pa. 40.035 -75.709 60.6 Y

01480800 East Branch Brandywine Creek at Downingtown, Pa. 40.006 -75.705 81.6 N

01480870 East Branch Brandywine Creek below Downingtown, Pa. 39.969 -75.673 89.9 Y

01481000 Brandywine Creek at Chadds Ford, Pa. 39.870 -75.593 287 LF

01481500 Brandywine Creek at Wilmington, Del. 39.769 -75.573 314 LF

01482500 Salem River at Woodstown, N.J. 39.644 -75.330 14.6 N

01483200 Blackbird Creek at Blackbird, Del. 39.366 -75.669 4.06 N

01483700 St Jones River at Dover, Del. 39.164 -75.519 31.9 LF

01484000 Murderkill River near Felton, Del. 38.976 -75.567 12.9 N

01484100 Beaverdam Branch at Houston, Del. 38.906 -75.513 3.02 N

01484270 Beaverdam Creek near Milton, Del. 38.762 -75.267 6.85 N

01493000 Unicorn Branch near Millington, Md. 39.250 -75.861 19.7 N

01493500 Morgan Creek near Kennedyville, Md. 39.280 -76.015 12.7 N

01495000 Big Elk Creek at Elk Mills, Md. 39.657 -75.822 52.6 N

01496000 NorthEast Creek at Leslie, Md. 39.628 -75.944 24.3 N

01496200 Principio Creek near Principio Furnace, Md. 39.626 -76.041 9.03 N

01496500 Oaks Creek at Index, N.Y. 42.666 -74.960 102 N

01500000 Ouleout Creek at East Sidney, N.Y. 42.333 -75.235 103 Y

01500500 Susquehanna River at Unadilla, N.Y. 42.321 -75.317 982 N

01502000 Butternut Creek at Morris, N.Y. 42.545 -75.239 59.7 N

01502500 Unadilla River at Rockdale, N.Y. 42.378 -75.406 520 N

01503000 Susquehanna River at Conklin, N.Y. 42.035 -75.803 2,232 N

01505000 Chenango River at Sherburne, N.Y. 42.679 -75.510 263 N
12 Selected Streamflow Statistics for Streamgage Locations in and near Pennsylvania

Table 1. List of U.S. Geological Survey streamgage locations in and near Pennsylvania with updated streamflow statistics.—Continued

[Latitude and Longitude in decimal degrees; mi2, square miles]

Streamgage 

number Streamgage name Latitude Longitude

Drainage 

area

(mi2)

Regulated1

01508803 West Branch Tioughnioga River at Homer, N.Y. 42.638 -76.176 71.5 N

01509000 Tioughnioga River at Cortland, N.Y. 42.603 -76.159 292 N

01510000 Otselic River at Cincinnatus, N.Y. 42.541 -75.900 147 N

01512500 Chenango River near Chenango Forks, N.Y. 42.218 -75.848 1,483 N

01515000 Susquehanna River near Waverly, N.Y. 41.985 -76.501 4,773 N

01516350 Tioga River near Mansfield, Pa. 41.797 -77.080 153 N

01516500 Corey Creek near Mainesburg, Pa. 41.791 -77.015 12.2 N

01518000 Tioga River at Tioga, Pa. 41.908 -77.129 282 Y

01518700 Tioga River at Tioga Junction, Pa. 41.953 -77.115 446 Y

01518862 Cowanesque River at Westfield, Pa. 41.923 -77.532 90.6 N

01520000 Cowanesque River near Lawrenceville, Pa. 41.997 -77.140 298 Y

01520500 Tioga River at Lindley, N.Y. 42.029 -77.132 771 Y

01521500 Canisteo River at Arkport, N.Y. 42.396 -77.711 30.6 Y

01523500 Canacadea Creek near Hornell, N.Y. 42.335 -77.683 57.9 Y

01524500 Canisteo River below Canacadea Creek at Hornell, N.Y. 42.314 -77.651 158 Y

01526500 Tioga River near Erwins, N.Y. 42.121 -77.129 1,377 Y

01527000 Cohocton River at Cohocton, N.Y. 42.500 -77.500 52.2 N

01527500 Cohocton River at Avoca, N.Y. 42.398 -77.417 152 N

01528000 Fivemile Creek near Kanona, N.Y. 42.388 -77.358 66.8 N

01529000 Mud Creek near Savona, N.Y. 42.308 -77.197 76.6 Y

01529500 Cohocton River near Campbell, N.Y. 42.253 -77.217 470 N

01529950 Chemung River at Corning, N.Y. 42.146 -77.057 2,006 Y

01530332 Chemung River at Elmira, N.Y. 42.086 -76.801 2,162 Y

01530500 Newtown Creek at Elmira, N.Y. 42.105 -76.798 77.5 Y

01531000 Chemung River at Chemung, N.Y. 42.002 -76.635 2,506 Y

01531500 Susquehanna River at Towanda, Pa. 41.765 -76.441 7,797 Y

01532000 Towanda Creek near Monroeton, Pa. 41.707 -76.485 215 N

01532850 MB Wyalusing Creek near Birchardville, Pa. 41.863 -76.007 5.67 N

01533400 Susquehanna River at Meshoppen, Pa. 41.607 -76.050 8,720 Y

01533500 North Branch Mehoopany Creek near Lovelton, Pa. 41.531 -76.156 35.2 N

01533950 SB Tunkhannock Creek near Montdale, Pa. 41.575 -75.642 12.6 N

01534000 Tunkhannock Creek near Tunkhannock, Pa. 41.558 -75.895 383 N

01534300 Lackawanna River near Forest City, Pa. 41.680 -75.472 38.8 Y

01534500 Lackawanna River at Archbald, Pa. 41.505 -75.542 108 Y

01536000 Lackawanna River at Old Forge, Pa. 41.359 -75.744 332 Y

01536500 Susquehanna River at Wilkes-Barre, Pa. 41.251 -75.881 9,960 Y

01537000 Toby Creek at Luzerne, Pa. 41.281 -75.896 32.4 Y

01537500 Solomon Creek at Wilkes-Barre, Pa. 41.228 -75.904 15.7 N

01538000 Wapwallopen Creek near Wapwallopen, Pa. 41.059 -76.094 43.8 N

01539000 Fishing Creek near Bloomsburg, Pa. 41.078 -76.431 274 N

01539500 Little Fishing Creek at Eyers Grove, Pa. 41.080 -76.511 56.5 N

01540200 Trexler Run near Ringtown, Pa. 40.853 -76.280 1.77 N

01540500 Susquehanna River at Danville, Pa. 40.958 -76.619 11,220 Y

01541000 West Branch Susquehanna River at Bower, Pa. 40.897 -78.677 315 N

01541200 West Branch Susquehanna River near Curwensville, Pa. 40.961 -78.519 367 Y
Table 1 13

Table 1. List of U.S. Geological Survey streamgage locations in and near Pennsylvania with updated streamflow statistics.—Continued

[Latitude and Longitude in decimal degrees; mi2, square miles]

Streamgage 

number Streamgage name Latitude Longitude

Drainage 

area

(mi2)

Regulated1

01541303 West Branch Susquehanna River at Hyde, Pa. 41.005 -78.457 474 Y

01541308 Bradley Run near Ashville, Pa. 40.509 -78.584 6.77 N

01541500 Clearfield Creek at Dimeling, Pa. 40.972 -78.406 371 Y

01542000 Moshannon Creek at Osceola Mills, Pa. 40.850 -78.268 68.8 N

01542500 WB Susquehanna River at Karthaus, Pa. 41.118 -78.109 1,462 Y

01542810 Waldy Run near Emporium, Pa. 41.579 -78.293 5.24 N

01543000 Driftwood Branch Sinnemahoning Creek at Sterling Run, Pa. 41.413 -78.197 272 N

01543500 Sinnemahoning Creek at Sinnemahoning, Pa. 41.317 -78.103 685 N

01544000 First Fork Sinnemahoning Creek near Sinnemahoning, Pa. 41.402 -78.024 245 Y

01544500 Kettle Creek at Cross Fork, Pa. 41.476 -77.826 136 N

01545000 Kettle Creek near Westport, Pa. 41.320 -77.874 233 Y

01545500 West Branch Susquehanna River at Renovo, Pa. 41.325 -77.751 2,975 Y

01545600 Young Womans Creek near Renovo, Pa. 41.390 -77.691 46.2 N

01546000 North Bald Eagle Creek at Milesburg, Pa. 40.942 -77.794 119 N

01546400 Spring Creek at Houserville, Pa. 40.834 -77.828 58.5 N

01546500 Spring Creek near Axemann, Pa. 40.890 -77.794 87.2 N

01547100 Spring Creek at Milesburg, Pa. 40.932 -77.786 142 N

01547200 Bald Eagle Creek below Spring Creek at Milesburg, Pa. 40.943 -77.786 265 N

01547500 Bald Eagle Creek at Blanchard, Pa. 41.052 -77.604 339 Y

01547700 Marsh Creek at Blanchard, Pa. 41.060 -77.606 44.1 N

01547800 South Fork Beech Creek near Snow Shoe, Pa. 41.024 -77.904 12.2 N

01547950 Beech Creek at Monument, Pa. 41.112 -77.702 152 N

01548005 Bald Eagle Creek near Beech Creek Station, Pa. 41.081 -77.549 562 Y

01548500 Pine Creek at Cedar Run, Pa. 41.522 -77.447 604 N

01549000 Pine Creek near Waterville, Pa. 41.313 -77.379 750 N

01549500 Blockhouse Creek near English Center, Pa. 41.474 -77.231 37.7 N

01549700 Pine Creek below Little Pine Creek near Waterville, Pa. 41.274 -77.324 944 Y

01550000 Lycoming Creek near Trout Run, Pa. 41.418 -77.033 173 N

01551500 WB Susquehanna River at Williamsport, Pa. 41.236 -76.997 5,682 Y

01552000 Loyalsock Creek at Loyalsockville, Pa. 41.325 -76.912 435 N

01552500 Muncy Creek near Sonestown, Pa. 41.357 -76.535 23.8 N

01553130 Sand Spring Run near White Deer, Pa. 41.059 -77.077 4.93 N

01553500 West Branch Susquehanna River at Lewisburg, Pa. 40.968 -76.876 6,847 Y

01553700 Chillisquaque Creek at Washingtonville, Pa. 41.062 -76.680 51.3 N

01554000 Susquehanna River at Sunbury, Pa. 40.835 -76.827 18,300 Y

01554500 Shamokin Creek near Shamokin, Pa. 40.810 -76.584 54.2 N

01555000 Penns Creek at Penns Creek, Pa. 40.867 -77.048 301 N

01555500 East Mahantango Creek near Dalmatia, Pa. 40.611 -76.912 162 N

01556000 Frankstown Branch Juniata River at Williamsburg, Pa. 40.463 -78.200 291 N

01557500 Bald Eagle Creek at Tyrone, Pa. 40.684 -78.234 44.1 N

01558000 Little Juniata River at Spruce Creek, Pa. 40.613 -78.141 220 N

01559000 Juniata River at Huntingdon, Pa. 40.485 -78.019 816 LF

01559500 Standing Stone Creek near Huntingdon, Pa. 40.524 -77.971 128 N

01559700 Sulphur Springs Creek near Manns Choice, Pa. 39.978 -78.619 5.28 N

01560000 Dunning Creek at Belden, Pa. 40.072 -78.493 172 N
14 Selected Streamflow Statistics for Streamgage Locations in and near Pennsylvania

Table 1. List of U.S. Geological Survey streamgage locations in and near Pennsylvania with updated streamflow statistics.—Continued

[Latitude and Longitude in decimal degrees; mi2, square miles]

Streamgage 

number Streamgage name Latitude Longitude

Drainage 

area

(mi2)

Regulated1

01561000 Brush Creek at Gapsville, Pa. 39.956 -78.254 36.8 N

01562000 Raystown Branch Juniata River at Saxton, Pa. 40.216 -78.265 756 N

01562500 Great Trough Creek near Marklesburg, Pa. 40.350 -78.130 84.6 N

01563200 Raystown Branch Juniata River below Rays Dam nr Huntingdon, Pa. 40.429 -77.991 960 Y

01563500 Juniata River at Mapleton Depot, Pa. 40.392 -77.935 2,030 Y

01564500 Aughwick Creek near Three Springs, Pa. 40.213 -77.925 205 N

01565000 Kishacoquillas Creek at Reedsville, Pa. 40.655 -77.583 164 N

01565700 Little Lost Creek at Oakland Mills, Pa. 40.605 -77.311 6.52 N

01566000 Tuscarora Creek near Port Royal, Pa. 40.515 -77.419 214 N

01566500 Cocolamus Creek near Millerstown, Pa. 40.566 -77.118 57.2 N

01567000 Juniata River at Newport, Pa. 40.478 -77.129 3,354 Y

01567500 Bixler Run near Loysville, Pa. 40.371 -77.402 15.0 N

01568000 Sherman Creek at Shermans Dale, Pa. 40.323 -77.169 207 N

01568500 Clark Creek near Carsonville, Pa. 40.460 -76.751 22.5 LF

01569000 Stony Creek nr Dauphin, Pa. 40.380 -76.907 33.2 N

01569800 Letort Spring Run near Carlisle, Pa. 40.235 -77.139 21.6 N

01570000 Conodoguinet Creek near Hogestown, Pa. 40.252 -77.021 470 LF

01570500 Susquehanna River at Harrisburg, Pa. 40.255 -76.886 24,100 Y

01571000 Paxton Creek near Penbrook, Pa. 40.308 -76.850 11.2 N

01571500 Yellow Breeches Creek near Camp Hill, Pa. 40.225 -76.898 213 N

01572000 Lower Little Swatara Creek at Pine Grove, Pa. 40.538 -76.377 34.3 N

01572025 Swatara Creek near Pine Grove, Pa. 40.533 -76.402 116 N

01572190 Swatara Creek near Inwood, Pa. 40.479 -76.531 167 N

01573000 Swatara Creek at Harper Tavern, Pa. 40.403 -76.577 337 N

01573086 Beck Creek near Cleona, Pa. 40.323 -76.483 7.87 N

01573160 Quittapahilla Creek near Bellegrove, Pa. 40.343 -76.562 74.2 N

01573500 Manada Creek at Manada Gap, Pa. 40.397 -76.709 13.5 N

01573560 Swatara Creek near Hershey, Pa. 40.298 -76.668 483 N

01574000 West Conewago Creek near Manchester, Pa. 40.082 -76.720 510 N

01574500 Codorus Creek at Spring Grove, Pa. 39.879 -76.853 75.5 Y

01575000 South Branch Codorus Creek near York, Pa. 39.921 -76.749 117 Y

01575500 Codorus Creek near York, Pa. 39.946 -76.755 222 Y

01576000 Susquehanna River at Marietta, Pa. 40.055 -76.531 25,990 Y

01576085 Little Conestoga Creek near Churchtown, Pa. 40.145 -75.989 5.82 N

01576500 Conestoga River at Lancaster, Pa. 40.050 -76.277 324 N

01576754 Conestoga River at Conestoga, Pa. 39.946 -76.368 470 N

01578310 Susquehanna River at Conowingo, Md. 39.658 -76.174 27,100 Y

01578400 Bowery Run near Quarryville, Pa. 39.895 -76.114 5.98 N

01580000 Deer Creek at Rocks, Md. 39.630 -76.403 94.4 N

01581500 Bynum Run at Bel Air, Md. 39.541 -76.330 8.52 N

01581700 Winters Run near Benson, Md. 39.520 -76.373 34.8 N

01582000 Little Falls at Blue Mount, Md. 39.604 -76.620 52.9 N

01582500 Gunpowder Falls at Glencoe, Md. 39.550 -76.636 160 Y

01583000 Slade Run near Glyndon, Md. 39.495 -76.795 2.09 N

01583100 Piney Run at Dover, Md. 39.521 -76.767 12.3 N
Table 1 15

Table 1. List of U.S. Geological Survey streamgage locations in and near Pennsylvania with updated streamflow statistics.—Continued

[Latitude and Longitude in decimal degrees; mi2, square miles]

Streamgage 

number Streamgage name Latitude Longitude

Drainage 

area

(mi2)

Regulated1

01583500 Western Run at Western Run, Md. 39.511 -76.677 59.8 N

01583600 Beaverdam Run at Cockeysville, Md. 39.486 -76.646 20.9 N

01584050 Long Green Creek at Glen Arm, Md. 39.455 -76.479 9.40 N

01584500 Little Gunpowder Falls at Laurel Brook, Md. 39.505 -76.432 36.1 N

01585095 North Fork Whitemarsh Run near White Marsh, Md. 39.386 -76.469 1.34 N

01585100 Whitemarsh Run at White Marsh, Md. 39.371 -76.446 7.61 N

01585200 West Branch Herring Run at Idlewylde, Md. 39.374 -76.584 2.13 N

01585300 Stemmers Run at Rossville, Md. 39.341 -76.488 4.46 N

01585400 Brien Run at Stemmers Run, Md. 39.334 -76.473 1.97 N

01585500 Cranberry Branch near Westminster, Md. 39.593 -76.968 3.29 LF

01586000 North Branch Patapsco River at Cedarhurst, Md. 39.504 -76.885 56.6 LF

01586210 Beaver Run near Finksburg, Md. 39.489 -76.903 14.0 N

01586610 Morgan Run near Louisville, Md. 39.452 -76.955 28.0 N

01587500 South Branch Patapsco River at Henryton, Md. 39.351 -76.914 64.4 N

01589000 Patapsco River at Hollofield, Md. 39.310 -76.792 285 Y

01589100 East Branch Herbert Run at Arbutus, Md. 39.24 -76.692 2.47 N

01589300 Gwynns Falls at Villa Nova, Md. 39.346 -76.733 32.5 N

01589330 Dead Run at Franklintown, Md. 39.311 -76.717 5.52 N

01589440 Jones Falls at Sorrento, Md. 39.392 -76.661 25.2 N

01589500 Sawmill Creek at Glen Burnie, Md. 39.17 -76.631 4.97 LF

01594930 Laurel Run at Dobbin Road near Wilson, Md. 39.244 -79.428 8.23 N

01594936 North Fork Sand Run near Wilson, Md. 39.260 -79.410 1.91 N

01594950 McMillan F near Fort Pendleton, Md. 39.277 -79.390 2.30 N

01595000 North Branch Potomac River at Steyer, Md. 39.302 -79.307 73.1 N

01595200 Stony River near Mount Storm, W.Va. 39.270 -79.262 48.7 Y

01595300 Abram Creek at Oakmont, W.Va. 39.367 -79.179 42.6 N

01595500 North Branch Potomac River at Kitzmiller, Md. 39.394 -79.182 225 N

01595800 North Branch Potomac River at Barnum, W.Va. 39.445 -79.111 266 Y

01596500 Savage River near Barton, Md. 39.570 -79.102 49.1 N

01597000 Crabtree Creek near Swanton, Md. 39.500 -79.159 16.7 N

01597500 Savage River below Savage River Dam near Bloomington, Md. 39.503 -79.124 106 Y

01598500 North Branch Potomac River at Luke, Md. 39.479 -79.064 406 Y

01599000 Georges Creek at Franklin, Md. 39.494 -79.045 72.4 N

01600000 North Branch Potomac River at Pinto, Md. 39.567 -78.840 607 Y

01601000 Wills Creek below Hyndman, Pa. 39.812 -78.716 146 N

01601500 Wills Creek near Cumberland, Md. 39.670 -78.788 247 N

01603000 North Branch Potomac River near Cumberland, Md. 39.622 -78.773 877 Y

01603500 Evitts Creek near Centerville, Pa. 39.790 -78.646 30.2 N

01604500 Patterson Creek near Headsville, W.Va. 39.443 -78.822 221 N

01609000 Town Creek near Oldtown, Md. 39.553 -78.555 148 N

01610000 Potomac River at Paw Paw, W.Va. 39.539 -78.456 3,129 N

01610155 Sideling Hill Creek near Bellegrove, Md. 39.650 -78.344 102 N

01611500 Cacapon River near Great Cacapon, W.Va. 39.582 -78.310 675 N

01613000 Potomac River at Hancock, Md. 39.698 -78.178 4,064 N

01613050 Tonoloway Creek near Needmore, Pa. 39.898 -78.132 10.7 N
16 Selected Streamflow Statistics for Streamgage Locations in and near Pennsylvania

Table 1. List of U.S. Geological Survey streamgage locations in and near Pennsylvania with updated streamflow statistics.—Continued

[Latitude and Longitude in decimal degrees; mi2, square miles]

Streamgage 

number Streamgage name Latitude Longitude

Drainage 

area

(mi2)

Regulated1

01614000 Back Creek near Jones Springs, W.Va. 39.512 -78.037 235 N

01614090 Conococheague Creek near Fayetteville, Pa. 39.930 -77.439 5.05 N

01614500 Conococheague Creek at Fairview, Md. 39.716 -77.825 494 N

01616500 Opequon Creek near Martinsburg, W.Va. 39.424 -77.939 273 N

01617000 Tuscarora Creek above Martinsburg, W.Va. 39.470 -77.971 11.3 N

01617800 Marsh Run at Grimes, Md. 39.515 -77.777 18.9 N

01618000 Potomac River at Shepherdstown, W.Va. 39.435 -77.801 5,939 N

01619000 Antietam Creek near Waynesboro, Pa. 39.716 -77.607 93.5 N

01619500 Antietam Creek near Sharpsburg, Md. 39.450 -77.730 281 LF

01637500 Catoctin Creek near Middletown, Md. 39.427 -77.556 66.9 N

01639000 Monocacy River at Bridgeport, Md. 39.679 -77.235 173 N

01639140 Piney Creek near Taneytown, Md. 39.661 -77.221 31.3 N

01639500 Big Pipe Creek at Bruceville, Md. 39.612 -77.237 102 N

01640500 Owens Creek at Lantz, Md. 39.677 -77.464 5.93 N

01640965 Hunting Creek near Foxville, Md. 39.620 -77.466 2.14 N

01640970 Hunting Creek Tributary near Foxville, Md. 39.628 -77.462 4.01 N

01641000 Hunting Creek at Jimtown, Md. 39.594 -77.397 18.4 LF

01641500 Fishing Creek near Lewistown, Md. 39.527 -77.467 7.29 N

01642500 Linganore Creek near Frederick, Md. 39.415 -77.333 82.3 LF

01643000 Monocacy River at Jug Bridge near Frederick, Md. 39.403 -77.366 817 N

01643500 Bennett Creek at Park Mills, Md. 39.294 -77.407 62.8 N

03007800 Allegheny River at Port Allegany, Pa. 41.819 -78.293 248 N

03008000 Newell Creek near Port Allegany, Pa. 41.895 -78.349 7.79 N

03009680 Potato Creek at Smethport, Pa. 41.810 -78.430 160 N

03010500 Allegheny River at Eldred, Pa. 41.963 -78.386 550 N

03010655 Oswayo Creek at Shinglehouse, Pa. 41.962 -78.198 98.7 N

03011020 Allegheny River at Salamanca, N.Y. 42.156 -78.715 1,608 N

03011800 Kinzua Creek near Guffey, Pa. 41.766 -78.719 38.8 N

03012550 Allegheny River at Kinzua Dam, Pa. 41.841 -79.012 2,180 Y

03013000 Conewango Creek at Waterboro, N.Y. 42.171 -79.069 290 N

03014500 Chadakoin River at Falconer, N.Y. 42.113 -79.204 194 Y

03015000 Conewango Creek at Russell, Pa. 41.938 -79.133 816 Y

03015280 Jackson Run near North Warren, Pa. 41.903 -79.238 12.8 N

03015500 Brokenstraw Creek at Youngsville, Pa. 41.853 -79.317 321 N

03016000 Allegheny River at West Hickory, Pa. 41.571 -79.408 3,660 Y

03017500 Tionesta Creek at Lynch, Pa. 41.602 -79.050 233 N

03020000 Tionesta Creek at Tionesta Creek Dam, Pa. 41.478 -79.444 479 Y

03020500 Oil Creek at Rouseville, Pa. 41.482 -79.695 283 N

03021350 French Creek near Wattsburg, Pa. 42.015 -79.783 92.0 N

03021410 West Branch French Creek near Lowville, Pa. 42.082 -79.850 52.3 N

03021500 French Creek at Carters Corners, Pa. 41.956 -79.877 208 N

03021520 French Creek near Union City, Pa. 41.908 -79.897 221 Y

03022540 Woodcock Creek at Blooming Valley, Pa. 41.691 -80.048 31.1 N

03022554 Woodcock Creek at Woodcock Creek Dam, Pa. 41.696 -80.108 45.6 Y

03023100 French Creek at Meadville, Pa. 41.633 -80.160 788 Y
Table 1 17

Table 1. List of U.S. Geological Survey streamgage locations in and near Pennsylvania with updated streamflow statistics.—Continued

[Latitude and Longitude in decimal degrees; mi2, square miles]

Streamgage 

number Streamgage name Latitude Longitude

Drainage 

area

(mi2)

Regulated1

03024000 French Creek at Utica, Pa. 41.438 -79.956 1,028 Y

03025000 Sugar Creek at Sugarcreek, Pa. 41.429 -79.880 166 N

03025500 Allegheny River at Franklin, Pa. 41.390 -79.820 5,982 Y

03026500 Sevenmile Run near Rasselas, Pa. 41.631 -78.577 7.84 N

03027500 East Branch Clarion River at East Branch Clarion River Dam, Pa. 41.553 -78.596 73.2 Y

03028000 West Branch Clarion River at Wilcox, Pa. 41.575 -78.692 63.0 N

03028500 Clarion River at Johnsonburg, Pa. 41.486 -78.678 204 Y

03029500 Clarion River at Cooksburg, Pa. 41.331 -79.209 807 LF

03030500 Clarion River near Piney, Pa. 41.193 -79.440 951 Y

03031500 Allegheny River at Parker, Pa. 41.101 -79.681 7,671 Y

03031950 Big Run nr Sprankle Mills, Pa. 40.992 -79.090 7.38 N

03032500 Redbank Creek at St. Charles, Pa. 40.995 -79.394 528 N

03034000 Mahoning Creek at Punxsutawney, Pa. 40.939 -79.008 158 N

03034500 Little Mahoning Creek at McCormick, Pa. 40.836 -79.110 87.4 N

03036000 Mahoning Creek at Mahoning Creek Dam, Pa. 40.928 -79.291 344 Y

03036500 Allegheny River at Kittanning, Pa. 40.820 -79.531 8,973 Y

03038000 Crooked Creek at Idaho, Pa. 40.655 -79.349 191 LF

03039000 Crooked Creek at Crooked Creek Dam near Ford City, Pa. 40.720 -79.511 278 Y

03039200 Clear Run near Buckstown, Pa. 40.047 -78.833 3.68 N

03039925 North Fork Bens Creek at North Fork Reservoir, Pa. 40.266 -79.017 3.45 N

03040000 Stonycreek River at Ferndale, Pa. 40.286 -78.921 451 N

03041000 Little Conemaugh River at East Conemaugh, Pa. 40.346 -78.883 183 N

03041500 Conemaugh River at Seward, Pa. 40.419 -79.026 715 N

03042000 Blacklick Creek at Josephine, Pa. 40.473 -79.183 192 N

03042200 Little Yellow Creek near Strongstown, Pa. 40.563 -78.945 7.36 N

03042280 Yellow Creek near Homer City, Pa. 40.573 -79.103 57.4 Y

03042500 Two Lick Creek at Graceton, Pa. 40.517 -79.172 171 Y

03043000 Blacklick Creek at Black Lick, Pa. 40.474 -79.204 390 N

03044000 Conemaugh River at Tunnelton, Pa. 40.455 -79.391 1,358 Y

03045000 Loyalhanna Creek at Kingston, Pa. 40.293 -79.341 172 N

03045500 Loyalhanna Creek at New Alexandria, Pa. 40.395 -79.432 265 N

03047000 Loyalhanna Creek at Loyalhanna Dam, Pa. 40.459 -79.449 290 Y

03047500 Kiskiminetas River at Avonmore, Pa. 40.535 -79.465 1,723 N

03048500 Kiskiminetas River at Vandergrift, Pa. 40.605 -79.552 1,825 Y

03049000 Buffalo Creek near Freeport, Pa. 40.716 -79.699 137 N

03049500 Allegheny River at Natrona, Pa. 40.615 -79.718 11,410 Y

03049800 Little Pine Creek near Etna, Pa. 40.520 -79.938 5.78 N

03061500 Buffalo Creek at Barrackville, W.Va. 39.504 -80.172 116 N

03062400 Cobun Creek at Morgantown, W.Va. 39.608 -79.955 11.0 N

03062500 Deckers Creek at Morgantown, W.Va. 39.629 -79.953 63.2 N

03065000 Dry Fork at Hendricks, W.Va. 39.072 -79.623 349 N

03066000 Blackwater River at Davis, W.Va. 39.127 -79.468 85.9 N

03068800 Shavers Fork below Bowden, W.Va. 38.913 -79.770 151 N

03069000 Shavers Fork at Parsons, W.Va. 39.096 -79.677 213 N

03069500 Cheat River near Parsons, W.Va. 39.123 -79.681 722 N
18 Selected Streamflow Statistics for Streamgage Locations in and near Pennsylvania

Table 1. List of U.S. Geological Survey streamgage locations in and near Pennsylvania with updated streamflow statistics.—Continued

[Latitude and Longitude in decimal degrees; mi2, square miles]

Streamgage 

number Streamgage name Latitude Longitude

Drainage 

area

(mi2)

Regulated1

03070000 Cheat River at Rowlesburg, W.Va. 39.346 -79.665 939 N

03070420 Stony Fork Tributary near Gibbon Glade, Pa. 39.764 -79.587 .93 N

03070500 Big Sandy Creek at Rockville, W.Va. 39.616 -79.705 200 N

03072000 Dunkard Creek at Shannopin, Pa. 39.759 -79.971 229 N

03072655 Monongahela River near Masontown, Pa. 39.825 -79.923 4,440 Y

03072840 Tenmile Creek near Clarksville, Pa. 39.998 -80.042 133 N

03073000 South Fork Tenmile Creek at Jefferson, Pa. 39.923 -80.073 180 N

03074300 Lick Run at Hopwood, Pa. 39.868 -79.694 3.80 N

03074500 Redstone Creek at Waltersburg, Pa. 39.980 -79.764 73.7 N

03075070 Monongahela River at Elizabeth, Pa. 40.262 -79.901 5,340 Y

03075500 Youghiogheny River near Oakland, Md. 39.422 -79.424 134 N

03076500 Youghiogheny River at Friendsville, Md. 39.654 -79.408 295 LF

03076600 Bear Creek at Friendsville, Md. 39.656 -79.394 48.9 N

03077500 Youghiogheny River at Youghiogheny River Dam, Pa. 39.805 -79.364 436 Y

03078000 Casselman River at Grantsville, Md. 39.702 -79.136 62.5 N

03078500 Big Piney Run near Salisbury, Pa. 39.726 -79.048 24.5 N

03079000 Casselman River at Markleton, Pa. 39.860 -79.228 382 N

03080000 Laurel Hill Creek at Ursina, Pa. 39.820 -79.321 121 N

03081000 Youghiogheny River below Confluence, Pa. 39.828 -79.373 1,029 Y

03082200 Poplar Run near Normalville, Pa. 40.016 -79.426 9.27 N

03082500 Youghiogheny River at Connellsville, Pa. 40.018 -79.594 1,326 Y

03083000 Green Lick Run at Green Lick Reservoir, Pa. 40.105 -79.500 3.07 N

03083500 Youghiogheny River at Sutersville, Pa. 40.240 -79.806 1,715 Y

03084000 Abers Creek near Murrysville, Pa. 40.450 -79.714 4.39 N

03085000 Monongahela River at Braddock, Pa. 40.391 -79.858 7,337 Y

03085500 Chartiers Creek at Carnegie, Pa. 40.401 -80.096 257 N

03086000 Ohio River at Sewickley, Pa. 40.549 -80.206 19,500 Y

03086500 Mahoning River at Alliance, Ohio 40.933 -81.095 89.2 N

03090500 Mahoning River bl Berlin Dam nr Berlin Center, Ohio 41.048 -81.001 248 Y

03091500 Mahoning River at Pricetown, Ohio 41.131 -80.971 273 Y

03092000 Kale Creek near Pricetown, Ohio 41.140 -80.995 21.9 N

03092090 West Branch Mahoning River near Ravenna, Ohio 41.161 -81.197 21.8 N

03092460 West Branch Mahoning River at Wayland, Ohio 41.157 -81.072 81.7 Y

03092500 West Branch Mahoning River near Newton Falls, Ohio 41.172 -81.021 96.3 Y

03093000 Eagle Creek at Phalanx Station, Ohio 41.261 -80.954 97.6 N

03094000 Mahoning River at Leavittsburg, Ohio 41.239 -80.881 575 Y

03095500 Mosquito Creek below Mosquito Creek Dam near Cortland, Ohio 41.300 -80.758 97.5 Y

03097550 Mahoning River at Ohio Edison P Plt at Niles, Ohio 41.173 -80.757 854 Y

03098000 Mahoning River at Youngstown, Ohio 41.111 -80.673 898 Y

03098500 Mill Creek at Youngstown, Ohio 41.072 -80.690 66.3 N

03098600 Mahoning River below West Ave at Youngstown, Ohio 41.105 -80.663 978 Y

03099500 Mahoning River at Lowellville, Ohio 41.037 -80.536 1,073 Y

03100000 Shenango River near Turnersville, Pa. 41.513 -80.471 152 N

03101500 Shenango River at Pymatuning Dam, Pa. 41.498 -80.460 167 Y

03102000 Shenango River near Jamestown, Pa. 41.458 -80.425 181 Y
Table 1 19

Table 1. List of U.S. Geological Survey streamgage locations in and near Pennsylvania with updated streamflow statistics.—Continued

[Latitude and Longitude in decimal degrees; mi2, square miles]

Streamgage 

number Streamgage name Latitude Longitude

Drainage 

area

(mi2)

Regulated1

03102500 Little Shenango River at Greenville, Pa. 41.422 -80.376 104 N

03102850 Shenango River near Transfer, Pa. 41.354 -80.398 337 Y

03102950 Pymatuning Creek at Kinsman, Ohio 41.443 -80.588 96.7 N

03103000 Pymatuning Creek near Orangeville, Pa. 41.311 -80.478 169 N

03103500 Shenango River at Sharpsville, Pa. 41.266 -80.473 584 Y

03104000 Shenango River at Sharon, Pa. 41.232 -80.510 608 N

03104500 Shenango River at New Castle, Pa. 41.000 -80.356 792 Y

03104760 Harthegig Run near Greenfield, Pa. 41.186 -80.327 2.26 N

03105500 Beaver River at Wampum, Pa. 40.889 -80.337 2,235 Y

03106000 Connoquenessing Creek near Zelienople, Pa. 40.817 -80.242 356 N

03106300 Muddy Creek near Portersville, Pa. 40.963 -80.125 51.2 Y

03106500 Slippery Rock Creek at Wurtemburg, Pa. 40.884 -80.234 398 Y

03107500 Beaver River at Beaver Falls, Pa. 40.763 -80.315 3,106 Y

03108000 Raccoon Creek at Moffatts Mill, Pa. 40.628 -80.338 178 LF

03109500 Little Beaver Creek near East Liverpool, Ohio 40.676 -80.541 496 N

03110000 Yellow Creek near Hammondsville, Ohio 40.538 -80.725 147 N

03111150 Brush Run near Buffalo, Pa. 40.198 -80.408 10.3 N

03111500 Short Creek near Dillonvale, Ohio 40.193 -80.734 123 N

03111534 Ohio River at Martins Ferry, Ohio 40.105 -80.708 24,620 N

03111548 Wheeling Creek below Blaine, Ohio 40.067 -80.808 97.7 N

03112000 Wheeling Creek at Elm Grove, W.Va. 40.045 -80.661 281 Y

03114000 Captina Creek at Armstrongs Mills, Ohio 39.909 -80.924 134 N

04209000 Chagrin River at Willoughby, Ohio 41.631 -81.403 246 N

04212500 Ashtabula River near Ashtabula, Ohio 41.856 -80.762 121 N

04213000 Conneaut Creek at Conneaut, Ohio 41.927 -80.604 175 N

04213040 Raccoon Creek near West Springfield, Pa. 41.945 -80.447 2.53 N

04213075 Brandy Run near Girard, Pa. 41.992 -80.291 4.45 N

04221000 Genesee River at Wellsville, N.Y. 42.122 -77.957 288 N

04223000 Genesee River at Portageville, N.Y. 42.570 -78.042 984 N

04224775 Canaseraga Creek above Dansville, N.Y. 42.536 -77.704 88.9 N

04227000 Canaseraga Creek at Shakers Crossing, N.Y. 42.737 -77.841 335 N

1

Refers to regulation of streamflow during period of record of streamgage; N, no regulation during period of record; Y, regulation during period of record; 

LF, regulation for low flows during period of record.
20 Selected Streamflow Statistics for Streamgage Locations in and near Pennsylvania

Table 2. Selected low-flow statistics for streamgage locations in and near Pennsylvania.—Continued

[ft3/s; cubic feet per second; —, statistic not computed; <, less than]

Streamgage

number

Period of record

used in

analysis1

Number of 

years used in 

analysis

1-day,

10-year

(ft3/s)

7-day,

10-year

(ft3/s)

7-day,

2-year

(ft3/s)

30-day,

10-year

(ft3/s)

30-day,

2-year

(ft3/s)

90-day,

10-year

(ft3/s)

01411456 1989–2008 20 0.4 0.4 1.0 0.6 1.4 0.8

01411500 1934–2008 75 30.9 36.2 59.3 43.3 69.1 55.0

01412000 1933–1984 31 3.6 7.2 12.7 11.4 17.4 14.2

01412800 1979–2008 14 13.0 14.3 17.8 15.9 20.0 18.9

01413500 1938–2008 71 9.6 10.6 20.9 13.3 28.0 20.9

01414000 1943–2008 31 1.4 1.6 3.4 2.4 5.0 3.9

01414500 1938–2008 71 2.0 2.2 4.2 2.7 5.5 4.1

01415000 1938–2008 71 1.3 1.5 3.6 2.3 5.3 3.8

01417000 21956–2008 53 3.1 4.1 9.8 5.1 12.7 6.3

01417000 31943–1954 12 22.5 24.5 51.1 34.1 69.5 58.3

01417500 21956–2008 42 32.0 35.9 61.0 47.8 79.2 82.8

01417500 31936–1954 19 31.1 32.8 62.9 42.5 84.3 74.0

01420000 1926–1981 56 1.7 2.0 3.7 2.6 5.0 4.1

01420500 1915–2008 94 34.0 36.7 63.4 45.9 80.5 65.5

01421000 21956–2008 53 106 120 178 143 220 212

01421000 31915–1954 40 80.9 88.5 158 118 211 193

01421900 1938–2008 44 6.2 6.9 14.6 8.9 20.3 13.4

01422500 1939–2008 43 1.6 1.9 4.3 2.8 6.6 4.4

01423000 1952–2008 57 20.6 22.3 42.5 27.6 56.6 38.7

0142400103 1954–2008 25 .3 .3 .9 .4 1.4 .9

01425000 21965–2008 44 8.1 8.9 18.9 10.8 25.3 15.3

01425000 31953–1963 10 29.9 32.4 49.7 45.1 66.1 58.8

01425675 1971–1981 11 .2 .3 .4 .4 .7 .6

01426000 1942–1973 32 1.4 1.6 3.5 2.5 5.5 4.6

01426500 21965–2008 44 38.0 49.3 92.4 82.6 168 129

01426500 31914–1963 50 38.9 43.1 75.3 55.5 107 93.8

01427500 1942–1982 41 5.9 6.4 13.1 8.5 17.8 13.2

01427510 21977–2008 32 380 497 674 640 859 876

01428500 1942–2008 67 256 305 663 411 845 603

01428750 1988–2008 21 4.7 5.3 8.8 6.4 11.7 8.2

01429000 21962–2008 47 3.9 4.9 11.3 7.1 14.3 10.2

01429000 31946–1960 15 5.5 6.3 11.2 9.0 14.1 13.3

01429500 21961–2008 48 2.6 3.3 8.0 4.7 11.6 7.4

01429500 31945–1959 15 2.4 2.9 6.2 4.5 8.5 7.2

01430000 21961–2008 31 10.8 12.0 24.3 15.6 32.5 21.7

01430000 31950–1959 10 13.4 14.1 24.5 18.5 31.3 26.9

01430500 1924–1938 15 17.7 23.7 36.0 29.8 48.5 43.1

01431000 1947–1960 14 2.6 3.1 6.2 4.2 8.8 8.1

01431500 31910–1959 28 –– 17.9 36.5 26.0 47.4 37.2

01431500 21961–2008 48 20.7 22.8 42.7 28.3 55.8 39.9

01432000 31911–1925 15 8.1 22.3 51.6 35.1 59.4 46.3

01433500 1941–1995 55 14.3 19.3 41.2 36.8 81.6 73.8

01434000 1906–2008 103 410 545 1,070 685 1,320 950

0143400680 1992–2008 17 2.3 2.6 4.7 3.3 5.9 5.3

01434017 1993–2008 16 5.7 6.4 10.8 8.2 14.5 12.7
Table 2 21

Table 2. Selected low-flow statistics for streamgage locations in and near Pennsylvania.—Continued

[ft3/s; cubic feet per second; —, statistic not computed; <, less than]

Streamgage

number

Period of record

used in

analysis1

Number of 

years used in 

analysis

1-day,

10-year

(ft3/s)

7-day,

10-year

(ft3/s)

7-day,

2-year

(ft3/s)

30-day,

10-year

(ft3/s)

30-day,

2-year

(ft3/s)

90-day,

10-year

(ft3/s)

01434021 1992–2008 17 .1 .1 .2 .1 .3 .3

01434025 1985–2008 24 .3 .4 1.0 .6 1.5 1.2

01434498 1993–2008 16 7.0 7.4 15.2 9.4 19.5 15.2

01435000 1939–2008 67 12.2 13.5 24.9 17.3 31.8 25.4

01436000 21955–2008 54 1.0 1.9 8.1 3.8 8.6 4.6

01436000 31943–1953 11 18.3 19.9 33.6 25.2 43.4 42.2

01436500 21955–1993 34 11.6 13.7 20.4 16.9 26.4 24.3

01436500 31939–1953 15 20.4 22.0 37.4 29.1 49.2 44.4

01436690 1994–2008 15 30.4 35.0 61.5 44.1 82.4 58.9

01437500 21955–2008 54 47.4 54.6 87.6 72.3 112 98.8

01437500 31939–1953 15 37.2 44.7 76.0 57.2 98.8 84.6

01438500 1941–2008 68 648 887 1,460 1,050 1,700 1,310

01439500 1910–2008 99 6.6 7.5 18.6 10.3 26.4 17.5

01440000 1925–2008 84 6.6 7.4 13.2 9.2 17.0 12.8

01440200 1966–1995 30 1,030 1,200 1,830 1,440 2,110 1,660

01440400 1959–2008 50 6.9 7.4 13.5 9.1 18.1 12.3

01441000 1913–1938 26 13.3 16.2 24.3 19.1 29.8 23.3

01442500 1952–2008 57 44.7 48.4 80.6 57.0 100 73.6

01443280 1994–2008 15 2.0 2.6 6.9 3.0 8.1 4.4

01443500 1923–2008 84 11.6 16.2 28.3 20.3 36.8 26.8

01443900 1968–2008 41 .2 .6 1.0 .9 1.4 1.1

01445000 1941–2008 27 1.9 2.1 5.3 2.8 7.2 4.8

01445500 1923–2008 86 18.2 19.5 33.5 22.0 39.0 27.2

01446000 1924–2008 42 1.9 2.1 5.1 2.6 6.8 4.2

01446500 1924–2008 85 864 1,080 1,740 1,260 2,020 1,580

01446600 1963–1978 16 .1 .1 .7 .2 1.1 .4

01447500 1945–2008 64 11.8 13.1 24.8 16.5 33.1 24.5

01447680 21971–2008 38 3.2 3.6 7.6 4.9 10.6 8.1

01447720 31963–1985 23 –– 28 43.3 34.1 58.8 43.2

01447720 21987–2008 22 26.0 28.9 49.2 37.3 68.2 51.8

01447800 1959–2008 50 39.5 46.8 81.4 62.4 124 94.1

01448000 1918–1959 41 49.0 66.7 108 79.0 136 116

01448500 1950–1996 47 .4 .4 .8 .5 1.0 .7

01449000 1984–2008 25 135 148 237 180 315 236

01449360 1968–2008 41 14.4 15.1 23.7 17.3 27.7 21.7

01449800 1969–2008 40 14.2 16.5 31.0 19.9 38.1 29.4

01450500 1941–2008 68 15.1 17.0 29.3 20.0 35.6 26.7

01451000 21962–2008 47 185 203 337 252 430 322

01451000 31948–1960 13 203 213 311 253 391 343

01451500 1947–2008 62 27.6 28.8 43.4 32.0 48.1 35.4

01451650 1988–2008 21 29.8 36.2 52.7 41.9 60.7 50.0

01451800 1967–2008 42 1.7 2.2 7.0 3.7 11.0 7.5

01452000 1946–2008 63 3.0 3.0 12.0 4.4 13.9 7.6

01452500 1950–2008 59 12.1 13.2 22.9 14.8 25.9 16.8

01453000 21929–2008 81 340 371 579 439 702 546
22 Selected Streamflow Statistics for Streamgage Locations in and near Pennsylvania

Table 2. Selected low-flow statistics for streamgage locations in and near Pennsylvania.—Continued

[ft3/s; cubic feet per second; —, statistic not computed; <, less than]

Streamgage

number

Period of record

used in

analysis1

Number of 

years used in 

analysis

1-day,

10-year

(ft3/s)

7-day,

10-year

(ft3/s)

7-day,

2-year

(ft3/s)

30-day,

10-year

(ft3/s)

30-day,

2-year

(ft3/s)

90-day,

10-year

(ft3/s)

01453000 31904–1927 18 237 312 447 378 546 472

01454700 1968–2005 38 471 510 745 600 902 760

01455500 1930–2008 52 0 .4 7.8 –– –– 6.0

01457000 1905–2008 89 40.6 45.6 70.5 52.2 81.7 62.5

01459500 21975–2008 34 1.9 2.1 4.1 2.9 7.1 5.7

01459500 31937–1973 37 .4 .9 2.1 1.3 3.6 2.9

01463500 1914–2008 95 1,540 1,720 2,700 1,960 3,120 2,430

01463620 1974–2008 19 2.4 2.7 7.6 4.8 10.6 8.6

01464000 1925–2008 84 9.4 14.2 25.7 18.7 34.2 29.3

01464500 1942–2008 65 16.4 18.9 34.0 24.4 42.3 37.3

01464645 1987–2008 22 3.3 3.6 12.3 4.4 13.6 5.4

01464720 1992–2008 17 3.0 3.6 5.8 4.5 7.3 6.2

01465000 1886–1934 28 –– 3.4 10.1 4.9 15.0 12.9

01465500 1936–2008 73 9.0 12.7 26.4 17.3 37.4 28.6

01465770 1966–1982 16 .3 .4 1.2 .8 1.7 1.7

01465798 1967–2008 42 1.0 1.2 3.6 3.0 6.8 7.9

01465850 1963–2008 19 5.2 8.5 13.2 12.1 19.5 17.1

01466500 1955–2008 54 .8 .8 1.1 .9 1.2 .9

01467000 1923–2008 86 26.2 34.2 51.8 41.6 63.2 53.2

01467042 1966–1981 16 8.6 9.3 16.8 11.3 21.5 17.0

01467048 1967–2008 42 10.7 12.1 18.9 16.6 27.2 26.6

01467050 1967–1981 15 .3 .4 .8 .7 1.3 1.6

01467081 1969–2008 38 2.4 2.9 4.1 3.9 6.0 6.3

01467086 1967–1988 23 3.3 4.4 6.9 6.6 9.9 10.4

01467087 1984–2008 25 1.6 2.1 6.1 4.8 10.1 12.0

01467089 1968–1982 15 4.8 6.6 9.6 10.3 16.0 20.1

01467150 1965–2008 44 3.9 5.4 10.1 7.3 13.2 11.5

01467500 1945–1969 25 14.6 17.2 24.5 19.8 28.5 23.4

01468500 1949–2008 40 40.8 44.5 70.6 52.1 82.4 65.0

01469500 1921–2008 88 4.8 5.5 10.9 7.3 14.4 10.1

01470500 1949–2008 60 69.2 82.3 137 102 164 133

01470756 1974–1995 22 14.8 16.7 30.5 23.4 43.9 35.5

01470779 1976–2008 33 21.9 24.6 39.3 29.4 45.2 34.8

01470853 1984–2005 22 .2 .4 1.2 .8 1.6 1.1

01470960 21980–2008 29 29.4 31.8 52.4 47.0 74.7 66.3

01470960 31967–1978 12 32.7 38.2 74.0 47.6 88.3 59.5

01471000 21980–2008 29 36.9 43.4 69.4 58.9 93.9 81.0

01471000 31952–1978 27 41.8 47.6 77.1 55.3 91.2 68.6

01471510 21980–2008 29 222 244 347 274 422 340

01471510 31916–1930 10 142 173 279 206 337 245

01471875 1995–2008 14 10.9 11.8 21.2 14.1 25.3 19.0

01471980 1976–2004 29 16.5 17.8 29.2 21.7 34.9 29.7

01472000 21980–2008 29 276 301 432 349 527 453

01472000 31929–1978 50 228 258 411 298 486 374

01472157 1970–2008 39 9.5 10.2 17.2 12.5 21.8 17.0
Table 2 23

Table 2. Selected low-flow statistics for streamgage locations in and near Pennsylvania.—Continued

[ft3/s; cubic feet per second; —, statistic not computed; <, less than]

Streamgage

number

Period of record

used in

analysis1

Number of 

years used in 

analysis

1-day,

10-year

(ft3/s)

7-day,

10-year

(ft3/s)

7-day,

2-year

(ft3/s)

30-day,

10-year

(ft3/s)

30-day,

2-year

(ft3/s)

90-day,

10-year

(ft3/s)

01472174 1969–1984 16 1.2 1.5 2.4 1.8 3.1 2.7

01472198 1983–2008 26 7.1 7.5 12.9 9.6 15.4 13.9

01472199 1983–2008 26 3.8 4.3 6.8 5.1 8.3 7.2

01472500 1886–1913 28 –– 14.5 24.0 20.6 34.9 33.2

01472620 1985–2008 24 0 0 7.2 .1 7.3 .5

01472810 1992–2008 15 12.9 18.8 36.0 33.7 49.2 49.8

01473000 31916–1956 41 9.5 14.8 32.1 24.1 44.7 41.4

01473000 21958–2008 51 28.5 33.9 61.6 42.5 77.4 53.3

01473120 1968–1994 27 1.4 1.9 4.4 3.2 6.8 5.6

01473169 1984–2008 25 8.5 9.2 13.2 10.5 15.5 13.2

01473500 1929–2008 9 182 220 422 247 518 328

01473900 1963–2008 14 5.2 6.1 11.3 7.6 14.2 9.9

01473950 1967–1981 15 9.1 11.1 19.1 14.5 24.0 19.7

01474000 1967–2008 42 13.7 16.6 25.6 21.4 32.9 30.4

01474500 1933–2008 76 58.7 108 376 180 515 320

01475000 1942–2006 37 3.5 4.1 6.1 4.8 7.0 5.7

01475300 1974–1997 24 1.0 1.2 2.1 1.6 2.9 2.4

01475510 1965–1990 26 9.3 11.5 18.8 15.5 24.2 22.6

01475530 1966–1981 19 1.2 1.3 2.0 1.8 2.8 2.7

01475550 1965–1990 25 .1 .6 4.4 2.9 8.5 8.9

01475850 1983–2008 26 1.5 2.2 4.6 3.4 6.5 5.4

01476480 1988–2008 19 2.3 3.5 8.5 5.8 11.5 9.0

01476500 1933–1954 22 3.9 4.9 11.4 6.4 14.4 9.7

01477000 1933–2007 73 10.4 12.4 24.9 15.7 31.0 22.8

01477120 1967–2008 42 6.5 7.1 12.9 8.5 15.0 11.2

01477800 1947–2008 62 .2 .2 .6 .5 1.2 1.4

01478000 1944–2008 65 .6 1.5 3.6 2.3 5.0 4.2

01478500 1953–1979 23 9.8 10.7 24.1 13.5 29.1 19.7

01479000 1933–2008 65 12.3 13.7 30.3 18.0 36.8 27.8

01479820 1989–2008 20 3.2 4.1 12.5 5.6 14.6 10.8

01480000 1944–2008 65 8.5 9.8 17.7 12.6 21.1 17.6

01480015 1990–2008 19 9.0 11.0 20.1 14.7 24.5 18.4

01480100 1965–1980 16 .3 .4 1.2 1.2 2.0 2.3

01480300 1962–2008 47 2.6 3.0 6.2 3.9 7.4 5.3

01480500 31945–1993 30 7.3 8.3 14.5 10.4 18.4 14.5

01480500 21995–2008 14 4.8 5.2 12.3 6.6 14.8 9.6

01480617 1971–2008 38 12.1 14.0 23.3 16.6 27.8 22.0

01480675 1968–2008 41 .6 .6 1.7 .9 2.3 1.6

01480685 1975–2008 34 .5 .9 3.7 2.4 7.4 5.7

01480700 21975–2008 34 12.3 14.0 22.3 17.8 28.4 21.9

01480800 1960–1968 9 11.5 12.1 19.8 14.6 23.8 19.5

01480870 1973–2008 36 24.0 26.5 36.8 31.0 44.5 38.0

01481000 31913–1973 51 –– 68.5 117 79.0 136 102

01481000 21975–2008 34 60.0 63.8 117 76.9 138 106

01481500 21975–2008 34 64.2 68.3 128 84.5 154 117
24 Selected Streamflow Statistics for Streamgage Locations in and near Pennsylvania

Table 2. Selected low-flow statistics for streamgage locations in and near Pennsylvania.—Continued

[ft3/s; cubic feet per second; —, statistic not computed; <, less than]

Streamgage

number

Period of record

used in

analysis1

Number of 

years used in 

analysis

1-day,

10-year

(ft3/s)

7-day,

10-year

(ft3/s)

7-day,

2-year

(ft3/s)

30-day,

10-year

(ft3/s)

30-day,

2-year

(ft3/s)

90-day,

10-year

(ft3/s)

01481500 31948–1973 26 64.5 70.5 115 83.5 138 111

01482500 1941–2008 47 0 .7 2.6 1.5 4.8 3.4

01483200 1958–2008 51 <.1 .1 .3 .1 .6 .3

01483700 1959–2008 50 .3 .7 2.2 1.2 4.3 3.6

01484000 1933–2008 27 1.4 1.7 2.7 2.0 3.3 2.7

01484100 1960–2008 49 .2 .3 .9 .4 1.0 .5

01484270 1973–2005 11 4.0 4.3 7.2 4.6 7.6 5.4

4

01493000 1949–2008 56 .7 –– –– 5.1 8.4 6.3

4

01493500 1953–2008 54 1.5 1.7 3.4 2.1 4.1 2.9

4

01495000 1933–2008 76 7.7 8.7 19.4 11.1 23.2 16.3

4

01496000 1950–1984 35 2.3 2.7 5.5 3.4 6.8 5.0

4

01496200 1969–1992 24 1.2 1.3 2.5 1.7 3.0 2.6

01496500 1931–1995 59 3.3 3.7 9.4 4.9 13.6 7.8

01500000 21951–2008 58 2.7 4.1 9.3 5.6 13.6 9.1

01500500 1940–2008 57 71.1 82.9 139 101 179 138

01502000 1940–1995 56 2.4 4.4 7.8 5.3 9.9 7.1

01502500 1931–2008 68 43.6 46.6 78.6 56.1 100 72.8

01503000 1914–2008 95 170 188 327 223 418 311

01505000 1940–2008 60 21.5 23.7 41.0 28.3 51.6 37.8

01508803 1968–1986 14 12.2 13.8 21.7 17.5 27.4 21.9

01509000 1940–2008 67 31.0 33.9 59.4 39.8 70.8 49.4

01510000 1940–2008 63 7.9 8.9 17.4 11.8 23.6 17.1

01512500 1914–2008 95 127 137 235 169 297 225

01515000 1938–2008 65 374 396 660 478 840 654

01516350 1978–2008 31 8.7 9.4 16.2 11.4 21.1 15.9

01516500 1956–2008 53 0 <.1 .3 .1 .5 .3

01518000 21979–2008 30 21.4 24.2 39.1 26.0 43.9 29.6

01518000 31940–1977 38 7.5 8.8 17.7 10.9 23.6 16.5

01518700 21981–2008 28 26.3 28.8 47.8 31.8 53.6 36.5

01518862 1985–2008 24 .9 1.2 3.4 2.0 5.2 4.1

01520000 21981–2008 28 7.6 8.1 16.0 10.0 20.2 12.4

01520000 31953–1978 26 1.7 2.2 7.0 3.4 11.3 6.2

01520500 21981–1995 15 37.4 41.5 72.7 44.5 80.5 53.6

01520500 31931–1979 49 14.3 16.2 37.3 20.8 51.8 32.5

01521500 21941–2008 68 .6 .7 1.4 .8 1.8 1.2

01523500 21950–2008 59 2.0 3.4 7.4 5.8 9.2 7.0

01524500 1944–2008 65 11.3 12.9 20.1 15.2 24.4 17.8

01526500 21980–2008 29 69.5 73.7 116 87.4 145 103

01526500 31920–1978 59 34.8 38.5 72.6 48.6 99.4 70.3

01527000 1952–1981 30 2.7 3.1 6.2 4.3 7.5 5.9

01527500 1940–2008 12 12.2 13.2 25.9 14.8 33.9 18.5

01528000 1938–1995 58 .6 .7 2.2 1.0 2.9 1.6

01529000 1938–1982 45 .6 .7 2.1 1.1 2.5 1.7

01529500 1920–2008 89 20.3 23.5 42.7 28.4 52.5 38.4

01529950 21980–2008 29 116 121 185 142 235 168
Table 2 25

Table 2. Selected low-flow statistics for streamgage locations in and near Pennsylvania.—Continued

[ft3/s; cubic feet per second; —, statistic not computed; <, less than]

Streamgage

number

Period of record

used in

analysis1

Number of 

years used in 

analysis

1-day,

10-year

(ft3/s)

7-day,

10-year

(ft3/s)

7-day,

2-year

(ft3/s)

30-day,

10-year

(ft3/s)

30-day,

2-year

(ft3/s)

90-day,

10-year

(ft3/s)

01530500 1940–2008 69 5.0 6.1 11.0 7.6 13 9.0

01531000 21981–2008 28 138 147 237 169 296 203

01531000 31905–1979 68 86.3 97.0 175 116 219 161

01531500 21981–2008 28 550 592 1,030 733 1,340 952

01531500 31915–1979 65 539 571 990 675 1,230 928

01532000 1915–2008 94 2.2 2.8 9.7 4.6 14.4 9.4

01532850 1967–1979 13 .1 .2 .4 .3 .8 .7

01533400 21981–2008 28 602 648 1,110 790 1,430 1,060

01533500 1942–1958 17 .4 .6 1.5 .8 2.0 1.7

01533950 1962–1978 17 .2 .3 1.0 .6 1.4 1.0

01534000 1915–2008 94 15.2 17.3 35.9 24.2 51.0 38.7

01534300 1960–2008 49 1.1 1.7 5.1 2.8 7.6 4.8

01534500 21961–2008 48 16.7 18.8 29.2 21.9 35.8 27.6

01534500 31941–1959 19 18.8 23.0 33.3 25.6 39.2 34.9

01536000 21961–2008 48 28.7 32.7 51.7 40.8 68.1 54.3

01536000 31940–1959 20 77.8 93.9 119 105 138 124

01536500 21981–2008 28 828 872 1,450 1,030 1,830 1,350

01536500 31901–1979 79 778 811 1,350 927 1,640 1,260

01537000 1943–1993 51 1.3 2.0 4.9 3.1 6.4 4.7

01537500 1941–1990 50 .2 .3 1.9 .5 3.1 1.6

01538000 1921–2008 88 3.1 3.6 7.1 5.0 9.3 7.5

01539000 1940–2008 69 15.4 16.8 36.8 21.1 51.1 36.8

01539500 1942–1958 17 .1 .3 1.4 1.0 3.3 2.3

01540200 1965–1981 17 0 0 .3 .1 .3 .1

01540500 21981–2008 28 1,080 1,120 1,870 1,320 2,330 1,690

01540500 31906–1979 74 927 978 1,660 1,160 2,050 1,590

01541000 1915–2008 94 25.3 27.9 50.7 35.3 66.6 49.6

01541200 21967–2008 40 34.6 45.2 66.0 63.1 100 92.4

01541200 31957–1965 9 22.9 24.7 44.7 27.7 58.2 36.4

01541303 1980–2008 29 53.4 58.5 94.0 74.4 123 102

01541308 1969–1979 11 1.3 1.3 1.9 1.6 2.4 2.1

01541500 21962–2008 47 39.0 41.9 66.5 51.9 86.3 70.6

01541500 31915–1960 46 14.9 21.3 41.9 28.5 55.0 42.9

01542000 1942–1993 52 8.1 9.1 14.8 11.3 17.8 14.6

01542500 21967–2008 33 216 235 326 285 435 402

01542500 31941–1965 20 –– 131 189 152 243 221

01542810 1966–2008 43 .1 .1 .3 .2 .5 .3

01543000 1915–2008 94 2.9 4.2 16.0 9.6 27.4 19.2

01543500 1940–2008 69 10.7 14.5 44.9 26.6 74.9 50.5

01544000 21957–2008 52 3.3 6.9 19.0 11.2 31.1 19.0

01544500 1942–2008 67 4.2 4.9 12.5 7.5 17.4 11.7

01545000 21964–2008 45 6.8 8.2 21.2 12.0 32.7 20.7

01545500 21963–2008 46 217 238 446 306 629 428

01545500 31909–1961 53 125 141 278 190 387 296

01545600 1966–2008 43 1.2 1.5 4.4 2.4 6.7 4.2
26 Selected Streamflow Statistics for Streamgage Locations in and near Pennsylvania

Table 2. Selected low-flow statistics for streamgage locations in and near Pennsylvania.—Continued

[ft3/s; cubic feet per second; —, statistic not computed; <, less than]

Streamgage

number

Period of record

used in

analysis1

Number of 

years used in 

analysis

1-day,

10-year

(ft3/s)

7-day,

10-year

(ft3/s)

7-day,

2-year

(ft3/s)

30-day,

10-year

(ft3/s)

30-day,

2-year

(ft3/s)

90-day,

10-year

(ft3/s)

01546000 1912–1934 17 1.8 2.2 6.8 3.7 12.1 11.2

01546400 1986–2008 23 13.5 14.0 19.6 15.4 22.3 18.7

01546500 1942–2008 67 26.8 29.0 41.3 31.2 44.2 33.7

01547100 1969–2008 40 102 105 128 111 133 117

01547200 1957–2008 52 99.4 101 132 106 142 115

01547500 21971–2008 38 28.2 109 151 131 172 153

01547500 31956–1969 14 90.0 94.9 123 98.1 131 105

01547700 1957–2008 52 .5 .6 2.7 1.1 3.9 2.2

01547800 1971–1981 11 1.6 1.8 2.4 2.1 2.9 3.5

01547950 1970–2008 39 12.1 13.6 28.2 17.3 36.4 23.8

01548005 21971–2000 25 142 151 206 178 241 223

01548005 31912–1969 58 105 114 147 125 165 140

01548500 1920–2008 89 21.2 24.2 50.1 33.6 68.6 49.3

01549000 1910–1920 11 26.0 32.9 78.0 46.4 106 89.8

01549500 1942–2008 67 .6 .8 2.5 1.4 3.9 2.6

01549700 1959–2008 50 33.3 37.2 83.8 51.2 117 78.4

01550000 1915–2008 94 6.6 7.6 16.8 11.2 24.6 18.6

01551500 21963–2008 46 520 578 1,020 678 1,330 919

01551500 31901–1961 61 400 439 742 523 943 752

01552000 1927–2008 80 20.5 22.2 49.5 29.2 69.8 49.6

01552500 1942–2008 67 .9 1.2 3.1 1.7 4.4 3.3

01553130 1969–1981 13 1.0 1.1 1.5 1.3 1.8 1.7

01553500 21968–2008 41 760 838 1,440 1,000 1,850 1,470

01553500 31941–1966 26 562 619 880 690 1,090 881

01553700 1981–2008 28 9.1 10.9 15.0 12.6 17.1 15.2

01554000 21981–2008 28 1,830 1,990 3,270 2,320 4,210 3,160

01554000 31939–1979 41 1,560 1,630 2,870 1,880 3,620 2,570

01554500 1941–1993 53 16.2 22.0 31.2 25.9 35.7 31.4

01555000 1931–2008 78 33.5 37.6 58.8 43.4 69.6 54.6

01555500 1931–2008 78 4.9 6.5 18.0 9.4 24.3 16.6

01556000 1918–2008 91 43.3 47.8 66.0 55.1 75.0 63.7

01557500 1946–2008 63 2.8 3.2 6.3 4.2 8.1 5.8

01558000 1940–2008 69 56.3 59.0 79.8 65.7 86.2 73.7

01559000 1943–2008 66 104 177 249 198 279 227

01559500 1931–1958 28 9.3 10.5 15.0 12.4 17.8 15.8

01559700 1963–1978 16 .1 .1 .2 .1 .3 .2

01560000 1941–2008 68 8.5 9.4 15.6 12.0 20.2 16.2

01561000 1932–1958 27 .4 .5 1.6 .8 2.5 1.7

01562000 1913–2008 96 64.1 67.1 106 77.4 122 94.5

01562500 1931–1957 27 1.1 1.6 3.8 2.3 5.4 3.7

01563200 21974–2008 35 –– –– –– 112 266 129

01563200 31948–1972 25 10.3 28.2 86.1 64.5 113 95.5

01563500 21974–2008 35 384 415 519 441 580 493

01563500 31939–1972 34 153 242 343 278 399 333

01564500 1940–2008 69 3.6 4.2 10.0 6.2 14.4 10.6
Table 2 27

Table 2. Selected low-flow statistics for streamgage locations in and near Pennsylvania.—Continued

[ft3/s; cubic feet per second; —, statistic not computed; <, less than]

Streamgage

number

Period of record

used in

analysis1

Number of 

years used in 

analysis

1-day,

10-year

(ft3/s)

7-day,

10-year

(ft3/s)

7-day,

2-year

(ft3/s)

30-day,

10-year

(ft3/s)

30-day,

2-year

(ft3/s)

90-day,

10-year

(ft3/s)

01565000 1941–2008 37 17.6 18.6 28.6 20.3 32.4 24.4

01565700 1965–1981 17 .4 .4 .9 .5 1.1 .8

01566000 1913–2008 52 4.3 7.9 18.8 12.4 25.6 19.2

01566500 1932–1958 27 1.7 2.4 4.0 3.2 5.7 4.9

01567000 21974–2008 35 504 534 725 589 857 727

01567000 31901–1972 72 311 367 571 439 704 547

01567500 1955–2008 54 2.0 2.2 3.3 2.6 3.8 3.1

01568000 1931–2008 78 12.7 15.5 25.5 19.2 32.0 26.0

01568500 21943–1997 55 1.8 2.3 4.3 2.7 5.0 3.1

01569000 1939–1974 14 2.6 4.0 7.4 5.1 9.4 7.8

01569800 1978–2008 31 15.9 17.0 24.4 18.4 26.1 20.3

01570000 31913–1969 35 –– 63.1 110 76.1 124 95.3

01570000 21971–2008 38 63.1 69.3 109 78.3 125 97.8

01570500 31901–1972 72 2,310 2,440 4,000 2,830 4,950 3,850

01570500 21974–2008 35 3,020 3,200 5,180 3,690 6,490 4,960

01571000 1941–1995 16 .1 .2 .6 .3 1.2 .8

01571500 1911–2008 62 81.6 86.8 115 94.0 124 105

01572000 1921–1984 14 2.1 2.3 4.8 3.0 6.5 4.5

01572025 1990–2008 17 15.2 16.4 26.7 18.5 34.6 27.7

01572190 1990–2008 17 19.1 20.5 36.2 23.9 45.8 35.3

01573000 1920–2008 89 18.0 22.0 52.0 30.8 69.2 50.9

01573086 1965–1981 17 .5 .6 2.6 .8 3.3 1.1

01573160 1977–1994 18 26.9 29.6 46.4 33.6 51.9 39.5

01573500 1939–1958 20 1.3 1.4 2.5 1.8 3.2 2.6

01573560 1977–2008 30 50.3 62.0 104 76.9 131 108

01574000 1930–2008 79 8.0 11.1 32.0 17.7 47.0 33.9

01574500 21968–2008 41 14.2 24.0 35.9 29.4 42.0 33.3

01574500 31930–1966 34 2.3 7.1 11.5 9.3 14.8 12.7

01575000 21973–1995 23 .7 1.4 6.7 3.2 12.0 9.3

01575000 31929–1971 43 .1 .6 10.3 2.3 15.0 6.1

01575500 21948–1996 49 12.1 18.7 41.3 23.9 50.0 33.8

01576000 31933–1972 40 2,100 2,420 4,160 2,960 5,130 4,100

01576000 21974–2008 35 2,990 3,270 5,680 3,980 7,180 5,540

01576085 1984–1995 12 .4 .5 .8 .7 1.2 1.2

01576500 1931–2008 78 27.2 38.6 79.4 49.1 97.3 66.1

01576754 1986–2008 23 74.2 84.9 151 106 189 147

4

01578310 1969–2008 40 549 2,820 5,650 4,190 7,380 6,140

01578400 1964–1981 18 1.4 1.5 2.7 1.9 3.2 2.5

4

01580000 1928–2008 81 19.7 22.8 48.1 28.1 51.8 35.4

4

01581500 1946–2008 28 .2 .3 1.2 .8 1.7 1.5

4

01581700 1969–2008 40 4.7 5.5 17.5 8.1 18.3 12.0

4

01582000 1946–2008 63 11.3 12.5 25.0 15.5 28.0 20.3

4

01582500 1979–2008 27 41.2 43.9 78.8 53.8 90.6 74.1

4

01583000 1949–1981 33 .3 .3 .7 .3 1.0 .6

4

01583100 1984–2008 15 2.1 2.4 5.5 3.2 6.0 4.2
28 Selected Streamflow Statistics for Streamgage Locations in and near Pennsylvania

Table 2. Selected low-flow statistics for streamgage locations in and near Pennsylvania.—Continued

[ft3/s; cubic feet per second; —, statistic not computed; <, less than]

Streamgage

number

Period of record

used in

analysis1

Number of 

years used in 

analysis

1-day,

10-year

(ft3/s)

7-day,

10-year

(ft3/s)

7-day,

2-year

(ft3/s)

30-day,

10-year

(ft3/s)

30-day,

2-year

(ft3/s)

90-day,

10-year

(ft3/s)

4

01583500 1946–2008 63 9.6 10.7 24.0 13.4 26.9 17.5

4

01583600 1984–2008 25 4.9 5.6 9.6 7.3 11.6 9.6

4

01584050 1977–2008 32 1.5 1.6 3.3 1.9 3.7 2.5

4

01584500 1928–2008 52 5.9 6.5 16.2 8.2 17.8 10.9

4

01585095 1994–2008 15 0 0 .1 .1 .2 .4

4

01585100 1960–2008 45 .3 .5 1.0 .9 1.7 2.3

4

01585200 1959–2008 39 .1 –– –– .3 .6 .7

4

01585300 1960–1989 28 .1 .1 .3 .3 .7 1.0

4

01585400 1960–1987 28 .2 .2 .4 .2 .5 .6

4

01585500 1951–2008 58 .1 .2 .7 .3 1.0 .5

4

01586000 1947–2008 61 7.1 8.2 18.8 11.0 21.0 15.8

4

01586210 1984–2008 25 1.3 1.5 4.5 2.5 5.0 3.7

4

01586610 1984–2008 25 2.6 2.9 8.2 4.1 9.2 6.2

4

01587500 1950–1980 31 4.3 5.3 19.8 8.9 20.9 14.4

4

01589000 21956–2004 41 12.6 14.6 34.1 19.6 40.1 27.5

4

01589000 31946–1954 9 57.0 70.8 108 84.7 130 117

4

01589100 1959–2008 40 0.3 0.4 0.6 0.5 0.9 1.0

4

01589300 1958–2008 42 3.3 3.8 8.1 5.7 10.8 9.1

4

01589330 1961–2008 36 .2 .3 .6 .5 1.0 1.2

4

01589440 1967–2008 33 3.3 3.5 8.4 4.6 9.8 6.6

4

01589500 1946–2008 31 .1 .1 2.1 .2 2.5 .4

4

01594930 1982–2004 23 1.2 1.6 3.0 2.1 3.9 2.9

4

01594936 1982–2007 26 .1 .1 .3 .2 .4 .3

4

01594950 1988–2008 21 <.1 <.1 .1 <.1 .2 .1

4

01595000 1958–2008 51 4.8 6.4 14.7 9.8 21.8 17.4

5

01595200 1963–2008 46 2.0 2.9 5.9 3.8 8.4 6.8

01595300 1958–1982 25 .4 .5 2.5 1.0 4.2 2.6

4

01595500 1951–2008 39 11.7 14.2 32.4 22.0 47.7 37.1

01595800 31968–1981 14 18.6 21.1 43.4 30.0 63.0 57.9

4

01596500 1950–2008 59 .8 1.0 2.4 1.6 3.7 3.0

4

01597000 1950–1981 32 1.0 1.1 1.7 1.3 2.0 1.7

4

01597500 1952–2008 57 5.4 7.3 24.9 13.0 37.8 28.1

4

01598500 21952–2008 57 71.4 78.3 143 90.8 164 109

4

01599000 1907–2008 78 2.9 3.2 6.1 4.0 7.7 5.6

4

01600000 21952–2008 38 76.6 83.4 133 95.6 160 115

4

01600000 31940–1950 11 38.2 43.4 70.7 49.7 91.6 87.4

01601000 1953–2008 20 .9 1.0 3.0 2.1 6.2 4.6

4

01601500 1907–2008 78 13.1 13.9 23.4 16.5 29.0 23.2

4

01603000 21983–2008 26 202 212 304 235 352 266

4

01603000 31931–1981 51 57.4 64.7 143 79.2 168 119

01603500 1934–1982 49 1.7 1.8 3.0 2.2 3.7 2.8

5

01604500 1940–2008 69 2.2 2.7 6.9 4.4 9.7 7.1

4

01609000 1930–2008 22 1.5 1.9 6.6 3.0 10.0 6.2

01610000 1940–2008 69 226 239 381 278 459 369

4

01610155 1969–2008 18 0 0 .2 .1 1.0 1.0
Table 2 29

Table 2. Selected low-flow statistics for streamgage locations in and near Pennsylvania.—Continued

[ft3/s; cubic feet per second; —, statistic not computed; <, less than]

Streamgage

number

Period of record

used in

analysis1

Number of 

years used in 

analysis

1-day,

10-year

(ft3/s)

7-day,

10-year

(ft3/s)

7-day,

2-year

(ft3/s)

30-day,

10-year

(ft3/s)

30-day,

2-year

(ft3/s)

90-day,

10-year

(ft3/s)

5

01611500 1924–2008 83 37.2 39.3 56.4 45.6 65.6 56.0

4

01613000 1934–2008 75 270 286 446 335 534 453

01613050 1967–2008 40 0 0 .1 <.1 .4 .2

5

01614000 1930–2008 41 3.2 3.8 8.2 5.4 11.4 8.1

01614090 1962–1981 19 .2 .3 .8 .4 1.0 .7

4

01614500 1930–2008 79 48.1 55.0 91.9 65.3 105 81.4

5

01616500 1949–2008 60 34.4 36.7 54.4 41.0 61.9 48.7

01617000 1950–2008 24 .8 1.1 2.3 1.3 2.7 1.5

4

01617800 1966–2008 43 .2 .5 3.0 .9 3.4 1.4

01618000 1930–2004 68 333 424 708 516 869 680

01619000 1950–2008 19 22.5 23.4 37.5 25.9 41.8 32.9

4

01619500 1901–2008 82 57.9 65.2 93.1 72.4 103 82.5

4

01637500 1949–2008 60 .6 .9 3.2 1.7 5.4 4.2

4

01639000 1944–2008 65 .6 .8 4.7 2.9 8.2 6.6

4

01639140 1992–2001 10 0 .1 .9 .3 1.5 .8

4

01639500 1949–2008 60 –– 7.1 23.9 10.4 26.6 17.2

4

01640500 1933–1984 52 .1 .2 .6 .3 .8 .6

4

01640965 1983–1994 12 <.1 <.1 .1 .1 .1 .1

4

01640970 1983–1991 9 0.1 0.1 0.3 0.2 0.5 0.4

4

01641000 31951–1968 18 .9 1.1 1.9 1.5 2.5 1.9

4

01641000 21970–1991 22 2.1 2.4 3.6 3.2 4.6 4.2

4

01641500 1949–1984 36 .8 .9 1.5 1.1 1.8 1.4

4

01642500 31933–1970 35 6.0 6.8 15.3 9.0 18.5 13.4

4

01642500 21972–1982 11 7.2 8.6 18.1 12.2 23.9 19.9

4

01643000 1931–2008 78 45.1 49.2 105 63.9 128 93.1

4

01643500 1950–2008 50 3.2 3.8 11.0 5.9 13.0 10.2

03007800 1976–2008 33 13.2 15.4 35.2 20.9 47.8 35.5

03008000 1968–1979 12 0 0 .2 <.1 .6 <.1

03009680 1976–1995 20 11.2 13.5 26.9 17.2 38.8 29.5

03010500 1941–2008 68 27.6 31.0 65.0 42.8 91.5 63.0

03010655 1976–2008 33 4.9 5.7 11.8 7.4 15.6 10.6

03011020 1905–2008 104 117 127 218 159 291 217

03011800 1967–2008 42 4.2 4.9 8.8 6.2 12.1 9.0

03012550 21967–1991 25 –– 414 681 542 944 828

03012550 31937–1965 29 168 176 260 212 319 267

03013000 1940–1993 54 28.2 31.0 48.3 35.1 58.7 41.5

03014500 1936–2008 73 7.4 10.8 28.6 15.3 41.0 24.1

03015000 21951–2008 58 76.4 81.7 143 95.1 180 115

03015000 31941–1949 9 69.6 71.6 122 86.5 141 131

03015280 1964–1978 15 .7 .9 1.9 1.3 2.7 2.0

03015500 1911–2008 98 32.2 34.4 54.8 40.7 70.1 51.4

03016000 21967–2008 44 527 579 1,230 708 1,630 906

03016000 31943–1965 23 292 312 466 368 560 486

03017500 1939–1979 41 14.6 16.3 30.0 22.1 42.2 35.4

03020000 1942–1991 50 7.5 14.8 72.6 40.7 86.2 67.9
30 Selected Streamflow Statistics for Streamgage Locations in and near Pennsylvania

Table 2. Selected low-flow statistics for streamgage locations in and near Pennsylvania.—Continued

[ft3/s; cubic feet per second; —, statistic not computed; <, less than]

Streamgage

number

Period of record

used in

analysis1

Number of 

years used in 

analysis

1-day,

10-year

(ft3/s)

7-day,

10-year

(ft3/s)

7-day,

2-year

(ft3/s)

30-day,

10-year

(ft3/s)

30-day,

2-year

(ft3/s)

90-day,

10-year

(ft3/s)

03020500 1934–2008 75 27.4 30.1 50.2 37.4 66.0 48.4

03021350 1976–2008 33 3.8 4.5 10.7 7.6 19.2 12.9

03021410 1976–1993 18 2.3 2.8 5.6 4.6 10.6 8.6

03021500 1911–1971 61 8.1 9.6 18.4 13.0 25.9 18.4

03021520 1973–1991 19 20.0 23.1 35.3 31.8 52.2 49.8

03022540 1976–1995 16 2.5 2.8 4.9 3.8 7.1 5.6

03022554 1976–1991 16 5.2 5.7 9.1 6.6 10.5 10.5

03023100 1990–2008 19 50.4 55.3 110 67.6 161 104

03024000 21972–2008 37 77.4 85.4 166 109 233 176

03024000 31934–1970 37 58.1 62.0 101 78.1 134 109

03025000 1935–1980 46 14.5 16.6 25.1 19.9 31.1 25.6

03025500 21967–2008 42 1,220 1,450 2,210 1,740 2,710 2,070

03025500 31916–1965 50 468 491 784 590 1,000 770

03026500 1953–2008 56 .2 .2 .7 .4 1.1 .7

03027500 21954–1991 38 –– 15.7 27.0 19.7 35.4 27.9

03028000 1955–2008 54 6.0 6.6 12.3 8.4 16.6 12.0

03028500 21954–1995 42 55.5 65.2 109 79.2 139 112

03029500 31940–1952 13 51.9 57.0 96.4 69.9 123 103

03029500 21954–2008 55 151 171 282 195 328 244

03030500 1949–2008 60 16.9 76.8 232 148 366 210

03031500 21967–2008 42 1,670 2,050 3,020 2,390 3,620 2,790

03031500 31934–1965 32 565 669 990 837 2,350 1,150

03031950 1965–1981 17 .3 .4 1.0 .7 1.4 1.1

03032500 1920–2008 87 29.2 34.4 62.3 45.7 88.2 66.4

03034000 1940–2008 69 16.1 17.4 28.3 20.4 37.0 26.3

03034500 1941–2008 68 1.5 1.9 5.9 3.8 10.5 7.5

03036000 21942–1991 50 12.2 14.2 34.2 28.1 60.0 44.4

03036500 21967–2008 42 1,620 2,070 3,070 2,440 3,820 2,920

03036500 31906–1965 53 720 814 1,200 969 1,550 1,360

03038000 21970–2008 39 15.2 19.9 30.2 24.0 37.8 29.8

03038000 31939–1968 30 3.5 5.5 9.6 7.6 14.4 11.6

03039000 21941–1991 51 4.7 6.6 17.6 12.0 28.9 23.1

03039000 31920–1939 40 1.6 3.0 11.5 6.2 21.8 14.3

03039200 1966–1978 13 0 .1 .2 .2 .4 .2

03039925 1986–1998 10 .2 .3 .8 .4 1.2 .6

03040000 1915–2008 89 15.6 17.7 45.3 24.4 63.1 39.9

03041000 1940–2006 56 6.8 8.6 27.7 11.7 37.8 21.1

03041500 1940–2008 69 156 167 231 190 269 223

03042000 1953–2008 56 23.2 26.6 45.4 32.6 58.5 42.1

03042200 1962–1988 18 .2 .3 .6 .4 1.0 .6

03042280 21973–2008 36 5.1 6.0 9.8 7.5 12.2 9.9

03042500 21970–2008 39 34.2 39.0 50.7 45.6 62.9 55.4

03042500 31953–1968 16 9.2 11.3 15.0 13.3 22.0 16.6

03043000 1909–1951 43 16.8 19.5 44.0 28.3 59.6 48.4

03044000 21953–1991 39 –– –– –– 273 444 340
Table 2 31

Table 2. Selected low-flow statistics for streamgage locations in and near Pennsylvania.—Continued

[ft3/s; cubic feet per second; —, statistic not computed; <, less than]

Streamgage

number

Period of record

used in

analysis1

Number of 

years used in 

analysis

1-day,

10-year

(ft3/s)

7-day,

10-year

(ft3/s)

7-day,

2-year

(ft3/s)

30-day,

10-year

(ft3/s)

30-day,

2-year

(ft3/s)

90-day,

10-year

(ft3/s)

03044000 31941–1951 11 266 277 350 293 402 391

03045000 1941–2008 68 2.2 3.2 12.9 6.3 22.2 14.8

03045500 1921–1940 17 11.6 17.0 35.5 23.0 49.6 32.4

03047000 1943–1991 49 1.7 9.8 43.5 29.0 55.2 47.6

03047500 1909–1937 29 141 155 335 190 412 276

03048500 21943–2008 66 182 232 385 307 496 392

03049000 1942–2008 67 3.2 3.8 8.5 5.7 13.5 9.4

03049500 21967–2008 42 1,950 2,390 3,490 2,860 4,420 3,510

03049500 31940–1965 26 1,030 1,200 1,600 1,380 2,000 1,850

03049800 1964–2008 45 <.1 <.1 .2 .1 .5 .3

5

03061500 1909–2008 83 .6 1.0 3.7 1.9 6.7 4.6

03062400 1966–2002 33 0 0 .1 <.1 .5 .1

03062500 1947–2008 28 .7 1.1 3.0 1.8 4.8 3.3

5

03065000 1942–2008 64 10.4 12.4 34.8 20.7 64.0 54.9

5

03066000 1923–2008 86 4.0 5.1 11.6 7.6 19.4 16.5

03068800 1975–2008 17 12.0 15.4 32.8 26.0 57.7 53.6

5

03069000 1912–1993 67 9.1 11.6 37.6 21.0 67.6 59.6

5

03069500 1914–2008 95 31.8 37.6 98.3 60.2 178 146

5

03070000 1925–1996 72 35.8 40.2 114 66.8 209 173

03070420 1979–1995 17 0 <.1 <.1 <.1 .1 .1

5

03070500 1911–2008 94 2.3 2.9 13.2 5.5 22.9 14.8

03072000 1942–2008 67 1.2 1.7 5.4 2.7 9.5 5.7

03072655 1940–2008 69 295 484 845 618 1,150 944

03072840 1970–1979 10 1.9 2.7 5.5 4.9 9.2 9.3

03073000 1933–1995 63 .3 .4 1.8 1.0 4.0 2.8

03074300 1969–1979 11 <.1 .1 .2 .2 .4 .4

03074500 1944–2008 65 8.5 10.2 18.7 13.0 23.3 17.8

03075070 1935–2008 74 354 512 908 688 1,220 1,060

4

03075500 1943–2008 66 5.4 6.3 16.2 10.0 25.2 18.2

4

03076500 21941–2008 67 19.9 48.0 83.2 67.6 117 98.0

4

03076600 1966–2008 43 2.6 3.0 6.2 4.1 8.4 6.5

03077500 1945–1991 47 15.6 24.6 162 132 288 292

4

03078000 1949–2008 60 1.2 1.6 5.0 2.8 8.4 5.6

03079000 1922–2008 87 16.4 18.4 37.5 24.8 56.3 43.0

03080000 1920–2008 89 3.9 5.1 12.1 8.4 20.6 15.6

03081000 1942–2008 67 240 283 535 358 644 518

03082200 1963–1978 16 0 .1 .4 .2 .7 .5

03082500 21926–2008 83 155 214 526 283 655 460

03082500 31910–1924 13 23.0 30.8 129 53.6 208 144

03083000 1943–1979 37 .1 .1 .2 .1 .3 .2

03083500 21926–2008 74 262 332 644 416 776 621

03084000 1951–1994 44 0 <.1 .2 .2 .5 .3

03085000 1940–2004 65 1,060 1,230 1,950 1,440 2,380 1,950

03085500 1921–2008 80 26.7 30.8 52.4 36.5 62.4 48.5

03086000 1935–2008 74 2,760 3,060 5,030 3,650 6,230 4,930
32 Selected Streamflow Statistics for Streamgage Locations in and near Pennsylvania

Table 2. Selected low-flow statistics for streamgage locations in and near Pennsylvania.—Continued

[ft3/s; cubic feet per second; —, statistic not computed; <, less than]

Streamgage

number

Period of record

used in

analysis1

Number of 

years used in 

analysis

1-day,

10-year

(ft3/s)

7-day,

10-year

(ft3/s)

7-day,

2-year

(ft3/s)

30-day,

10-year

(ft3/s)

30-day,

2-year

(ft3/s)

90-day,

10-year

(ft3/s)

03086500 1943–1993 51 0 0 3.9 <.1 5.1 1.6

03090500 21945–1992 48 0 1.0 17.5 3.0 39.9 21.3

03090500 31933–1942 11 2.2 2.7 4.3 5.0 9.7 8.6

03091500 1931–2008 78 3.7 7.6 37.3 20.5 60.3 45.0

03092000 1943–1993 51 0 <.1 .1 .1 .3 .2

03092090 1967–1993 27 .3 .5 1.5 1.2 2.4 2.4

03092460 1971–1992 22 6.7 7.6 19.1 12.9 24.3 26.4

03092500 21969–1982 14 9.7 11.0 22.8 14.5 30.2 29.8

03092500 31929–1966 39 4.1 4.7 6.7 5.9 8.5 7.8

03093000 1928–2008 77 3.7 6.8 11.2 8.6 14.0 11.3

03094000 1942–2008 67 101 109 162 130 207 157

03095500 1945–1991 27 0 0 5.2 .9 6.4 2.3

03097550 1989–2008 20 189 200 247 227 316 268

03098000 1923–1982 60 64.2 75.4 168 90.3 203 115

03098500 1945–2000 27 .1 .2 .8 .8 2.4 2.4

03098600 1989–2008 20 200 217 285 255 378 314

03099500 1945–2000 46 198 217 312 245 382 304

03100000 1913–1922 10 3.1 3.6 5.8 5.2 9.5 7.3

03101500 1936–2008 73 2.2 3.5 19.2 8.4 35.7 25.2

03102000 31921–1932 12 2.6 3.5 5.9 4.3 9.2 6.8

03102500 1915–2008 90 4.8 5.5 10.4 7.1 13.8 9.7

03102850 1967–2008 42 47.3 54.4 82.5 69.8 106 103

03102950 1967–1994 28 .2 .4 2.0 1.4 5.0 4.4

03103000 1915–1963 46 1.2 1.8 4.4 2.9 6.7 5.1

03103500 1939–1991 53 81.3 94.8 154 124 196 154

03104000 31911–1932 22 13.1 14.8 29.9 19.6 41.5 28.8

03104500 31911–1932 20 12.6 16.5 30.4 24.4 47.8 36.5

03104760 1970–1981 12 <.1 .1 .1 .1 .1 .2

03105500 1916–2008 77 266 295 617 355 736 427

03106000 1921–2008 88 10.0 11.9 24.5 16.2 35.6 25.7

03106300 21971–2008 36 1.3 1.9 4.0 2.6 6.3 3.9

03106500 31913–1969 57 –– 30.4 44.6 38.8 59.3 49.2

03106500 21971–2008 38 44.0 47.5 73.5 57.5 101 78.2

03107500 1958–2008 51 510 564 842 657 989 781

03108000 31943–1956 14 6.2 7.7 11.2 10.4 17.4 16.6

03108000 21958–2008 51 7.4 8.3 16.3 11.0 22.6 16.9

03109500 1917–2008 92 18.3 20.4 38.4 29.0 53.3 43.1

03110000 1942–2008 67 1.9 2.3 6.7 3.8 10.6 8.2

03111150 1962–1985 19 0 0 .1 0 .3 <.1

03111500 1943–2008 66 7.7 9.5 19.8 12.9 24.5 19.3

03111534 1980–1995 16 4,620 5,610 8,430 6,530 10,700 8,320

03111548 1983–2008 21 10.2 11.0 20.8 13.4 26.5 20.9

03112000 21988–2008 21 .7 1.3 7.7 3.2 14.6 11.1

5

03112000 31942–1986 45 .4 .7 3.5 1.6 8.9 4.8

03114000 1928–2003 52 0 <.1 1.6 .5 5.6 3.6
Table 2 33

Table 2. Selected low-flow statistics for streamgage locations in and near Pennsylvania.—Continued

[ft3/s; cubic feet per second; —, statistic not computed; <, less than]

Streamgage

number

Period of record

used in

analysis1

Number of 

years used in 

analysis

1-day,

10-year

(ft3/s)

7-day,

10-year

(ft3/s)

7-day,

2-year

(ft3/s)

30-day,

10-year

(ft3/s)

30-day,

2-year

(ft3/s)

90-day,

10-year

(ft3/s)

04209000 1927–2008 68 11.3 14.3 30.8 21.7 45.1 30.0

04212500 1926–1979 47 0 0 0 0 .4 .2

04213000 1924–2008 70 1.6 2.4 7.4 4.4 12.4 7.4

04213040 1971–1996 26 0 0 .1 <.1 .1 .1

04213075 1988–2008 21 .3 .3 .7 .5 1.0 .8

04221000 1957–2008 37 15.6 17.2 30.7 21.6 41.0 29.8

04223000 1910–2008 99 46.2 57.8 102 74.6 137 110

04224775 1976–2008 33 7.2 7.6 11.5 8.4 14.6 10.4

04227000 1960–2008 44 19.6 21.8 37.0 25.7 45.6 30.3

1

Climatic year is defined as 12–month period beginning April 1 and ending March 31. The climatic year is designated by the calendar year in which it ends.

2

Period of record for post-regulation period.

3

Period of record for pre-regulation period.

4

Low-flow statistics also presented in Doheny and Banks (2010).

5

Low-flow statistics computed from a common period of record can be found in Wiley (2006).
34 Selected Streamflow Statistics for Streamgage Locations in and near Pennsylvania

Table 3. Selected base-flow statistics for streamgage locations in and near Pennsylvania.—Continued

[ft3/s; cubic feet per second; —, statistic not computed]

Streamgage 

number

Period of

record used

in analysis1

Number of

years used

in analysis

10-year

base flow

(ft3/s)

25-year

base flow

(ft3/s)

50-year

base flow

(ft3/s)

01411456 1989–2008 20 4.3 3.6 3.2

01411500 1934–2008 75 93.4 82.6 76.2

01412000 1933–1984 31 20.8 18.1 16.4

01412800 1979–2008 14 22.6 21.1 20.2

01413500 1938–2008 71 134 116 105

01414000 1943–2008 31 29.1 26.2 24.4

01414500 1938–2008 71 26.6 23.5 21.6

01415000 1938–2008 71 24.8 21.8 20.0

01417000 21956–2008 53 35.5 25.4 20.3

01417000 31943–1954 12 318 296 283

01417500 21956–2008 42 127 112 104

01417500 31936–1954 19 367 334 313

01420000 1926–1981 56 18.1 15.9 14.5

01420500 1915–2008 94 247 214 193

01421000 21956–2008 53 459 415 389

01421000 31915–1954 40 683 581 518

01421900 1938–2008 44 101 85.0 75.4

01422500 1939–2008 43 38.4 33.5 30.5

01423000 1952–2008 57 219 189 170

0142400103 1954–2008 25 13.7 11.9 10.8

01425000 21965–2008 44 113 69.6 49.0

01425000 31953–1963 10 72.9 18.7 6.2

01425675 1971–1981 11 4.4 4.0 3.8

01426000 1942–1973 32 39.6 34.1 30.8

01426500 21965–2008 44 233 179 150

01426500 31914–1963 50 406 340 298

01427500 1942–1982 41 65.0 56.0 50.6

01427510 1977–2008 32 1,040 938 876

01428500 1942–2008 67 1,210 1,050 948

01428750 1988–2008 21 30.4 25.4 22.4

01429000 21962–2008 47 44.6 38.0 34.1

01429000 31946–1960 15 48.4 42.3 38.5

01429500 21961–2008 48 42.2 35.9 32.2

01429500 31945–1959 15 44.8 40.1 37.2

01430000 21961–2008 31 110 93.0 82.6

01430000 31950–1959 10 130 120 113

01430500 1924–1938 15 144 121 107

01431000 1947–1960 14 52.3 48.9 46.9

01431500 21961–2008 48 178 152 136

01431500 31910–1959 28 177 156 144

01432000 31911–1925 15 206 192 183

01433500 1941–1995 55 99.1 76.7 64.3

01434000 1910–2008 99 2,080 1,810 1,640

0143400680 1992–2008 17 15.0 13.7 12.9

01434017 1993–2008 16 37.9 35.2 33.7
Table 3 35

Table 3. Selected base-flow statistics for streamgage locations in and near Pennsylvania.—Continued

[ft3/s; cubic feet per second; —, statistic not computed]

Streamgage 

number

Period of

record used

in analysis1

Number of

years used

in analysis

10-year

base flow

(ft3/s)

25-year

base flow

(ft3/s)

50-year

base flow

(ft3/s)

01434021 1992–2008 17 1.0 .9 .8

01434025 1985–2008 24 5.0 4.6 4.3

01434498 1993–2008 16 52.8 48.8 46.3

01435000 1939–2008 67 87.6 78.0 72.0

01436000 21955–2008 54 15.4 11.5 9.5

01436000 31943–1953 11 134 124 118

01436500 21955–1993 34 38.3 34.1 31.7

01436500 31939–1953 15 136 119 109

01436690 1994–2008 15 106 97.1 91.9

01437500 21955–2008 54 194 172 159

01437500 31939–1953 15 267 230 209

01438500 1941–2008 68 2,230 1,940 1,770

01439500 1910–2008 99 111 95.4 85.8

01440000 1925–2008 84 49.5 42.5 38.3

01440200 1966–1995 30 2,110 1,650 1,380

01440400 1959–2008 50 62.3 54.4 49.5

01441000 1913–1938 26 56.9 48.7 43.7

01442500 1952–2008 57 237 206 188

01443280 1994–2008 15 12.5 11.1 10.2

01443500 1923–2008 84 87.5 73.5 65.3

01443900 1968–2008 41 5.0 4.2 3.7

01445000 1941–2008 27 25.2 20.9 18.4

01445500 1923–2008 86 73.9 60.7 53.0

01446000 1924–2008 42 24.0 20.5 18.5

01446500 1924–2008 85 3,220 2,800 2,550

01446600 1963–1978 16 4.7 3.7 3.2

01447500 1945–2008 64 92.0 81.2 74.5

01447680 21971–2008 38 22.0 18.4 16.3

01447720 21987–2008 22 125 108 97.5

01447720 31963–1985 23 120 107 99.0

01447800 1959–2008 50 255 221 200

01448000 1918–1959 41 307 265 238

01448500 1950–1996 47 2.4 2.1 1.9

01449000 1984–2008 25 605 528 482

01449360 1968–2008 41 53.5 46.2 41.8

01449800 1969–2008 40 76.0 64.9 58.2

01450500 1941–2008 68 70.7 61.9 56.6

01451000 21962–2008 47 847 739 675

01451000 31948–1960 13 1,000 913 856

01451500 1947–2008 62 49.7 40.8 35.8

01451650 1988–2008 21 68.2 59.6 54.7

01451800 1967–2008 42 32.0 27.4 24.7

01452000 1946–2008 63 38.5 31.7 27.7

01452500 1950–2008 59 24.3 19.4 16.6

01453000 21929–2008 81 1,120 992 913
36 Selected Streamflow Statistics for Streamgage Locations in and near Pennsylvania

Table 3. Selected base-flow statistics for streamgage locations in and near Pennsylvania.—Continued

[ft3/s; cubic feet per second; —, statistic not computed]

Streamgage 

number

Period of

record used

in analysis1

Number of

years used

in analysis

10-year

base flow

(ft3/s)

25-year

base flow

(ft3/s)

50-year

base flow

(ft3/s)

01453000 31904–1927 18 1,030 944 890

01454700 1968–2005 38 1,360 1,210 1,120

01455500 1930–2008 52 21.0 15.8 12.9

01457000 1905–2008 89 121 101 89.9

01459500 21975–2008 34 33.7 27.6 24.0

01459500 31937–1973 37 26.4 23.5 21.9

01463500 1914–2008 95 5,130 4,530 4,170

01463620 1974–2008 19 22.3 18.5 16.3

01464000 1925–2008 84 52.2 43.9 39.0

01464500 1942–2008 65 60.4 54.4 50.7

01464645 1987–2008 22 11.1 7.8 6.1

01464720 1992–2008 17 13.2 11.3 10.2

01465000 1886–1934 28 56.2 47.1 41.8

01465500 1936–2008 73 89.5 75.3 67.0

01465770 1966–1982 16 2.1 1.7 1.5

01465798 1967–2008 42 7.1 6.2 5.6

01465850 1963–2008 19 39.7 32.7 28.6

01466500 1955–2008 54 1.4 1.2 1.1

01467000 1923–2008 86 92.2 81.7 75.5

01467042 1966–1981 16 24.0 20.0 17.7

01467048 1967–2008 42 31.1 27.9 26.1

01467050 1967–1981 15 1.1 1.0 .9

01467081 1969–2008 38 6.5 5.8 5.4

01467086 1967–1988 23 11.0 10.0 9.4

01467087 1984–2008 25 10.3 9.3 8.7

01467089 1968–1982 15 14.7 13.1 12.1

01467150 1965–2008 44 12.4 10.7 9.7

01467500 1945–1969 25 48.2 42.6 39.4

01468500 1949–2008 40 140 121 110

01469500 1921–2008 88 36.6 31.4 28.3

01470500 1949–2008 60 303 264 241

01470756 1974–1995 22 98.3 81.9 72.0

01470779 1976–2008 33 56.9 48.1 42.8

01470853 1984–2005 22 3.1 2.6 2.3

01470960 21980–2008 29 115 98.2 88.3

01470960 31967–1978 12 116 93.0 79.4

01471000 21980–2008 29 139 117 105

01471000 31952–1978 27 135 112 98.9

01471510 21980–2008 29 699 605 549

01471510 31916–1930 10 698 651 622

01471875 1995–2008 14 40.6 36.5 34.2

01471980 1976–2004 29 55.8 49.6 45.9

01472000 21980–2008 29 830 727 665

01472000 31929–1978 50 752 630 557

01472157 1970–2008 39 36.7 31.7 28.8
Table 3 37

Table 3. Selected base-flow statistics for streamgage locations in and near Pennsylvania.—Continued

[ft3/s; cubic feet per second; —, statistic not computed]

Streamgage 

number

Period of

record used

in analysis1

Number of

years used

in analysis

10-year

base flow

(ft3/s)

25-year

base flow

(ft3/s)

50-year

base flow

(ft3/s)

01472174 1969–1984 16 4.2 3.5 3.1

01472198 1983–2008 26 26.8 23.8 22.1

01472199 1983–2008 26 17.2 15.2 14.0

01472500 1886–1913 28 68.7 58.2 52.0

01472620 1985–2008 24 2.6 1.0 .5

01472810 1992–2008 15 53.2 48.4 45.2

01473000 21958–2008 51 112 93.8 82.8

01473000 31916–1956 41 94.2 77.3 67.5

01473120 1968–1994 27 17.3 14.3 12.6

01473169 1984–2008 25 18.0 16.7 15.9

01473500 1929–2008 9 767 578 474

01473900 1963–2008 14 17.8 15.0 13.5

01473950 1967–1981 15 29.9 25.1 22.3

01474000 1967–2008 42 41.4 36.6 33.7

01474500 1933–2008 76 912 748 653

01475000 1942–2006 37 7.7 6.9 6.4

01475300 1974–1997 24 3.9 3.5 3.3

01475510 1965–1990 26 26.5 23.1 21.2

01475530 1966–1981 19 2.9 2.6 2.3

01475550 1965–1990 25 5.0 3.1 2.2

01475850 1983–2008 26 10.6 9.8 9.3

01476480 1988–2008 19 19.0 17.0 15.9

01476500 1933–1954 22 21.5 18.8 17.1

01477000 1933–2007 73 38.0 33.2 30.5

01477120 1967–2008 42 20.1 18.5 17.5

01477800 1947–2008 62 1.9 1.6 1.4

01478000 1944–2008 65 8.0 6.9 6.3

01478500 1953–1979 23 34.8 29.4 26.4

01479000 1933–2008 65 47.3 41.2 37.7

01479820 1989–2008 20 18.4 16.7 15.8

01480000 1944–2008 65 27.3 24.1 22.3

01480015 1990–2008 19 31.1 27.7 25.9

01480100 1965–1980 16 2.7 2.4 2.2

01480300 1962–2008 47 10.2 8.8 8.0

01480500 21995–2008 30 23.7 21.4 20.2

01480500 31945–1993 14 26.5 22.9 20.8

01480617 1971–2008 38 36.5 32.2 29.7

01480675 1968–2008 41 4.8 4.2 3.8

01480685 1975–2008 34 13.7 11.8 10.6

01480700 21975–2008 34 41.0 36.0 33.1

01480800 1960–1968 9 37.4 34.0 32.1

01480870 1973–2008 36 66.8 59.1 54.7

01481000 31913–1973 51 164 141 128

01481000 21975–2008 34 189 169 158

01481500 21975–2008 34 214 190 177
38 Selected Streamflow Statistics for Streamgage Locations in and near Pennsylvania

Table 3. Selected base-flow statistics for streamgage locations in and near Pennsylvania.—Continued

[ft3/s; cubic feet per second; —, statistic not computed]

Streamgage 

number

Period of

record used

in analysis1

Number of

years used

in analysis

10-year

base flow

(ft3/s)

25-year

base flow

(ft3/s)

50-year

base flow

(ft3/s)

01481500 31948–1973 26 195 169 155

01482500 1941–2008 47 7.6 6.5 5.9

01483200 1958–2008 51 1.7 1.4 1.2

01483700 1959–2008 50 11.8 9.5 8.2

01484000 1933–2008 27 7.4 6.3 5.7

01484100 1960–2008 49 1.8 1.5 1.4

01484270 1973–2005 11 8.6 7.9 7.5

01493000 1949–2008 56 11.6 10.0 9.2

01493500 1953–2008 54 4.0 3.4 3.1

01495000 1933–2008 76 28.5 24.5 22.2

01496000 1950–1984 35 11.1 9.1 7.9

01496200 1969–1992 24 4.8 4.2 3.9

01496500 1931–1995 59 86.7 71.8 62.7

01500000 21951–2008 58 61.8 53.5 48.4

01500500 1940–2008 57 664 569 512

01502000 1940–1995 56 43.2 37.3 33.6

01502500 1931–2008 68 350 296 263

01503000 1914–2008 95 1,390 1,170 1,040

01505000 1940–2008 60 174 151 137

01508803 1968–1986 14 67.9 61.5 57.7

01509000 1940–2008 67 202 157 130

01510000 1940–2008 63 117 104 95.8

01512500 1914–2008 95 923 798 723

01515000 1938–2008 65 2,800 2,450 2,250

01516350 1978–2008 31 75.9 65.0 58.7

01516500 1956–2008 53 3.8 3.0 2.5

01518000 21979–2008 30 133 114 104

01518000 31940–1977 38 99.9 83.7 74.0

01518700 21981–2008 28 155 132 119

01518862 1985–2008 24 32.1 26.1 22.6

01520000 21981–2008 28 74.3 62.3 55.5

01520000 31953–1978 26 76.8 66.8 61.0

01520500 21981–1995 15 223 189 170

01520500 31931–1979 49 233 197 175

01521500 21941–2008 68 11.6 10.2 9.4

01523500 21950–2008 59 20.7 18.4 17.0

01524500 1944–2008 65 55.3 48.6 44.7

01526500 21980–2008 29 405 346 312

01526500 31920–1978 59 329 209 145

01527000 1952–1981 30 25.6 23.1 21.7

01527500 1940–2008 12 84.2 70.9 63.0

01528000 1938–1995 58 23.7 20.2 18.2

01529000 1938–1982 45 11.1 9.6 8.7

01529500 1920–2008 89 165 144 131

01529950 21980–2008 29 623 527 472
Table 3 39

Table 3. Selected base-flow statistics for streamgage locations in and near Pennsylvania.—Continued

[ft3/s; cubic feet per second; —, statistic not computed]

Streamgage 

number

Period of

record used

in analysis1

Number of

years used

in analysis

10-year

base flow

(ft3/s)

25-year

base flow

(ft3/s)

50-year

base flow

(ft3/s)

01530500 1940–2008 69 30.2 25.8 23.3

01531000 21981–2008 28 — — —

01531000 31905–1979 68 758 657 598

01531500 21981–2008 28 3,830 3,300 2,990

01531500 31915–1979 65 3,730 3,220 2,900

01532000 1915–2008 94 89.5 75.0 66.4

01532850 1967–1979 13 3.6 3.5 3.4

01533400 21981–2008 28 3,270 2,320 1,800

01533500 1942–1958 17 16.0 14.3 13.3

01533950 1962–1978 17 5.6 4.7 4.1

01534000 1915–2008 94 183 155 139

01534300 1960–2008 49 29.5 25.9 23.7

01534500 21961–2008 48 92.6 79.7 72.0

01534500 31941–1959 19 99.6 88.8 82.1

01536000 21961–2008 48 168 144 130

01536000 31940–1959 20 261 231 213

01536500 21981–2008 28 5,120 4,340 3,880

01536500 31901–1979 79 4,880 4,220 3,820

01537000 1943–1993 51 15.5 13.5 12.3

01537500 1941–1990 50 6.8 5.6 4.9

01538000 1921–2008 88 28.4 24.6 22.3

01539000 1940–2008 69 165 120 93.5

01539500 1942–1958 17 28.4 26.7 25.8

01540200 1965–1981 17 .9 .8 .6

01540500 21981–2008 28 4,750 3,480 2,780

01540500 31906–1979 74 5,230 4,190 3,560

01541000 1915–2008 94 191 165 150

01541200 21967–2008 40 242 214 198

01541200 31957–1965 9 236 223 217

01541303 1980–2008 29 329 289 264

01541308 1969–1979 11 6.3 5.7 5.3

01541500 21962–2008 47 233 208 194

01541500 31915–1960 46 194 164 146

01542000 1942–1993 52 54.8 49.7 46.7

01542500 21967–2008 33 1,100 1,030 980

01542500 31941–1965 20 985 902 853

01542810 1966–2008 43 3.0 2.7 2.5

01543000 1915–2008 94 142 122 110

01543500 1940–2008 69 474 415 380

01544000 21957–2008 52 120 102 91.5

01544500 1942–2008 67 86.1 76.5 70.9

01545000 21964–2008 45 133 115 105

01545500 21963–2008 46 1,860 1,640 1,510

01545500 31909–1961 53 1,680 1,350 1,150

01545600 1966–2008 43 28.0 24.0 21.6
40 Selected Streamflow Statistics for Streamgage Locations in and near Pennsylvania

Table 3. Selected base-flow statistics for streamgage locations in and near Pennsylvania.—Continued

[ft3/s; cubic feet per second; —, statistic not computed]

Streamgage 

number

Period of

record used

in analysis1

Number of

years used

in analysis

10-year

base flow

(ft3/s)

25-year

base flow

(ft3/s)

50-year

base flow

(ft3/s)

01546000 1912–1934 17 64.2 60.7 58.9

01546400 1986–2008 23 34.3 30.1 27.7

01546500 1942–2008 67 54.3 46.9 42.5

01547100 1969–2008 40 135 105 87.3

01547200 1957–2008 52 197 175 161

01547500 21971–2008 38 232 210 197

01547500 31956–1969 14 186 166 154

01547700 1957–2008 52 20.6 17.8 16.2

01547800 1971–1981 11 12.8 11.6 10.9

01547950 1970–2008 39 116 99.0 88.7

01548005 21971–2000 25 392 336 303

01548005 31912–1969 58 300 231 189

01548500 1920–2008 89 299 259 235

01549000 1910–1920 11 400 354 326

01549500 1942–2008 67 20.7 18.2 16.7

01549700 1959–2008 50 478 412 374

01550000 1915–2008 94 111 95.8 86.8

01551500 21963–2008 46 3,380 3,020 2,810

01551500 31901–1961 61 3,000 2,570 2,320

01552000 1927–2008 80 271 233 209

01552500 1942–2008 67 19.6 17.3 16.0

01553130 1969–1981 13 5.0 4.5 4.2

01553500 31941–1966 26 4,020 3,710 3,540

01553500 21968–2008 41 4,210 3,740 3,470

01553700 1981–2008 28 28.3 25.9 24.5

01554000 21981–2008 28 8,570 6,630 5,520

01554000 31939–1979 41 9,420 7,820 6,860

01554500 1941–1993 53 49.4 43.6 40.0

01555000 1931–2008 78 185 158 143

01555500 1931–2008 78 80.1 66.6 58.6

01556000 1918–2008 91 156 136 124

01557500 1946–2008 63 31.7 28.0 25.8

01558000 1940–2008 69 187 169 159

01559000 1943–2008 66 489 437 407

01559500 1931–1958 28 58.7 48.3 42.1

01559700 1963–1978 16 2.0 1.7 1.5

01560000 1941–2008 68 83.5 73.9 68.3

01561000 1932–1958 27 14.6 11.2 9.3

01562000 1913–2008 96 310 263 235

01562500 1931–1957 27 32.7 25.3 21.0

01563200 21974–2008 35 439 382 348

01563200 31948–1972 25 297 248 220

01563500 21974–2008 35 1,140 1,040 981

01563500 31939–1972 34 865 761 700

01564500 1940–2008 69 72.5 59.5 52.0
Table 3 41

Table 3. Selected base-flow statistics for streamgage locations in and near Pennsylvania.—Continued

[ft3/s; cubic feet per second; —, statistic not computed]

Streamgage 

number

Period of

record used

in analysis1

Number of

years used

in analysis

10-year

base flow

(ft3/s)

25-year

base flow

(ft3/s)

50-year

base flow

(ft3/s)

01565000 1941–2008 37 104 92.5 86.1

01565700 1965–1981 17 2.6 2.1 1.9

01566000 1913–2008 52 86.6 68.0 56.9

01566500 1932–1958 27 26.3 22.8 20.8

01567000 21974–2008 35 1,650 1,490 1,390

01567000 31901–1972 72 1,450 1,230 1,100

01567500 1955–2008 54 8.0 6.9 6.4

01568000 1931–2008 78 103 84.1 73.2

01568500 21943–1997 55 5.7 4.3 3.6

01569000 1939–1974 14 24.0 19.9 17.5

01569800 1978–2008 31 28.5 25.3 23.4

01570000 31913–1969 35 201 156 129

01570000 21971–2008 38 231 194 172

01570500 31901–1972 72 12,400 10,600 8,310

01570500 21974–2008 35 12,800 9,840 9,290

01571000 1941–1995 16 4.9 4.0 3.5

01571500 1911–2008 62 164 146 135

01572000 1921–1984 14 19.1 14.5 11.8

01572025 1990–2008 17 93.7 79.1 70.3

01572190 1990–2008 17 124 102 89.4

01573000 1920–2008 89 190 156 136

01573086 1965–1981 17 3.4 2.4 1.8

01573160 1977–1994 18 56.5 48.4 43.6

01573500 1939–1958 20 10.0 8.7 8.0

01573560 1977–2008 30 272 229 204

01574000 1930–2008 79 144 113 94.9

01574500 21968–2008 41 36.8 30.7 27.1

01574500 31930–1966 34 27.9 23.4 20.8

01575000 21973–1995 23 38.8 31.9 28.1

01575000 31929–1971 43 31.8 23.5 19.1

01575500 21948–1996 49 77.6 62.7 54.4

01576000 31933–1972 40 13,200 11,000 9,770

01576000 21974–2008 35 14,200 11,800 10,400

01576085 1984–1995 12 2.9 2.5 2.3

01576500 1931–2008 78 148 117 99.8

01576754 1986–2008 23 278 235 210

01578310 1969–2008 40 11,500 9,730 8,750

01578400 1964–1981 18 3.2 2.7 2.3

01580000 1928–2008 81 57.4 48.5 43.4

01581500 1946–2008 28 3.3 2.9 2.7

01581700 1969–2008 40 21.3 18.0 16.1

01582000 1946–2008 63 32.5 27.8 25.2

01582500 1985–2008 24 106 92.4 84.8

01583000 1949–1981 33 1.0 .8 .8

01583100 1984–2008 15 7.3 6.4 5.9
42 Selected Streamflow Statistics for Streamgage Locations in and near Pennsylvania

Table 3. Selected base-flow statistics for streamgage locations in and near Pennsylvania.—Continued

[ft3/s; cubic feet per second; —, statistic not computed]

Streamgage 

number

Period of

record used

in analysis1

Number of

years used

in analysis

10-year

base flow

(ft3/s)

25-year

base flow

(ft3/s)

50-year

base flow

(ft3/s)

01583500 1946–2008 63 31.1 26.6 24.0

01583600 1984–2008 25 13.5 12.0 11.1

01584050 1977–2008 32 5.1 4.4 4.0

01584500 1928–2008 52 19.3 16.1 14.3

01585095 1994–2008 15 .3 .2 .2

01585100 1960–2008 45 2.6 2.3 2.1

01585200 1959–2008 39 .6 .5 .5

01585300 1960–1989 28 1.1 1.1 1.0

01585400 1960–1987 28 .5 .5 .5

01585500 1951–2008 58 1.0 .8 .6

01586000 1947–2008 61 27.2 23.7 21.6

01586210 1984–2008 25 8.3 7.4 6.9

01586610 1984–2008 25 15.7 13.8 12.8

01587500 1950–1980 31 29.6 25.3 22.9

01589000 21956–2004 41 52.4 45.6 42.1

01589000 31946–1954 9 169 156 148

01589100 1959–2008 40 .9 .8 .8

01589300 1958–2008 42 13.5 11.9 11.0

01589330 1961–2008 36 1.3 1.1 1.0

01589440 1967–2008 33 13.1 11.5 10.6

01589500 1946–2008 31 .8 .4 .2

01594930 1982–2004 23 11.7 10.8 10.4

01594936 1982–2007 26 1.9 1.6 1.5

01594950 1988–2008 21 1.8 1.6 1.5

01595000 1958–2008 51 72.9 64.3 58.9

01595200 1963–2008 46 34.2 30.1 27.8

01595300 1958–1982 25 27.0 23.0 20.6

01595500 1951–2008 39 190 170 157

01595800 31968–1981 14 207 182 167

01596500 1950–2008 59 26.1 23.1 21.2

01597000 1950–1981 32 12.2 10.6 9.7

01597500 1952–2008 57 57.1 50.1 46.2

01598500 21952–2008 57 285 250 230

01599000 1907–2008 78 29.6 24.6 21.7

01600000 21952–2008 38 340 299 275

01600000 31940–1950 11 290 253 231

01601000 1953–2008 20 63.7 54.9 49.7

01601500 1907–2008 78 107 90.8 81.3

01603000 21983–2008 26 567 500 460

01603000 31931–1981 51 433 370 332

01603500 1934–1982 49 13.3 11.3 10.2

01604500 1940–2008 69 44.2 35.7 31.1

01609000 1930–2008 22 44.1 33.0 26.8

01610000 1940–2008 69 1,100 969 895

01610155 1969–2008 18 22.2 16.9 14.1
Table 3 43

Table 3. Selected base-flow statistics for streamgage locations in and near Pennsylvania.—Continued

[ft3/s; cubic feet per second; —, statistic not computed]

Streamgage 

number

Period of

record used

in analysis1

Number of

years used

in analysis

10-year

base flow

(ft3/s)

25-year

base flow

(ft3/s)

50-year

base flow

(ft3/s)

01611500 1924–2008 83 170 144 129

01613000 1934–2008 75 1,340 1,180 1,080

01613050 1967–2008 40 4.0 3.3 2.9

01614000 1930–2008 41 46.7 35.6 29.5

01614090 1962–1981 19 3.4 2.9 2.6

01614500 1930–2008 79 209 173 153

01616500 1949–2008 60 92.9 81.2 74.7

01617000 1950–2008 24 4.0 3.0 2.4

01617800 1966–2008 43 4.9 3.8 3.2

01618000 1930–2004 68 1,850 1,550 1,380

01619000 1950–2008 19 41.9 25.2 17.0

01619500 1901–2008 82 137 117 106

01637500 1949–2008 60 25.6 21.3 18.9

01639000 1944–2008 65 39.6 26.3 19.2

01639140 1992–2001 10 9.6 8.4 7.7

01639500 1949–2008 60 41.8 35.5 31.8

01640500 1933–1984 52 4.0 3.3 2.9

01640965 1983–1994 12 1.2 1.0 .9

01640970 1983–1991 9 2.8 2.5 2.3

01641500 1949–1984 36 6.1 5.2 4.6

01643000 1931–2008 78 277 226 196

01643500 1950–2008 50 26.6 23.3 21.5

03007800 1976–2008 33 154 134 121

03008000 1968–1979 12 4.7 4.3 4.0

03009680 1976–1995 20 123 109 101

03010500 1941–2008 68 372 333 309

03010655 1976–2008 33 58.9 52.2 48.3

03011020 1910–2008 99 1,040 911 835

03011800 1967–2008 42 35.0 31.5 29.3

03012550 21937–1965 25 1,410 1,250 1,150

03013000 1940–1993 54 205 178 162

03014500 1936–2008 73 196 170 155

03015000 21951–2008 58 675 603 561

03015000 31941–1949 9 662 554 487

03015280 1964–1978 15 10.6 9.8 9.2

03015500 1911–2008 98 213 190 176

03016000 21967–2008 44 2,490 2,140 1,920

03016000 31943–1965 23 2,390 2,150 2,000

03017500 1939–1979 41 185 166 154

03020000 1942–1991 50 307 273 252

03020500 1934–2008 75 201 182 170

03021350 1976–2008 33 74.5 66.7 61.9

03021410 1976–1993 18 44.1 39.5 36.5

03021500 1911–1971 61 148 134 126

03021520 1973–1991 19 251 237 229
44 Selected Streamflow Statistics for Streamgage Locations in and near Pennsylvania

Table 3. Selected base-flow statistics for streamgage locations in and near Pennsylvania.—Continued

[ft3/s; cubic feet per second; —, statistic not computed]

Streamgage 

number

Period of

record used

in analysis1

Number of

years used

in analysis

10-year

base flow

(ft3/s)

25-year

base flow

(ft3/s)

50-year

base flow

(ft3/s)

03022540 1975–1995 16 22.2 19.8 18.3

03022554 1976–1991 16 34.6 30.5 28.0

03023100 1990–2008 19 599 507 453

03024000 21972–2008 37 764 648 578

03024000 31934–1970 37 620 552 510

03025000 1935–1980 46 112 98.3 90.0

03025500 21967–2008 42 3,880 3,010 2,510

03025500 31916–1965 50 3,230 2,480 2,030

03026500 1953–2008 56 6.3 5.5 5.0

03027500 21954–1991 38 73.6 57.0 46.9

03028000 1955–2008 54 52.4 46.3 42.6

03028500 21954–1995 42 192 167 152

03029500 21954–2008 55 647 588 552

03029500 31940–1952 13 577 502 457

03030500 1949–2008 60 444 373 332

03031500 21967–2008 42 5,070 3,990 3,360

03031500 31934–1965 32 3,850 2,800 2,200

03031950 1965–1981 17 5.7 5.2 4.9

03032500 1920–2008 87 298 249 219

03034000 1940–2008 69 113 98.7 90.0

03034500 1941–2008 68 51.7 46.1 42.8

03036000 21942–1991 50 210 192 182

03036500 21967–2008 42 5,780 4,580 3,880

03036500 31906–1965 53 5,090 4,120 3,530

03038000 21970–2008 39 90.8 77.8 70.1

03038000 31939–1968 30 89.7 78.1 71.1

03039000 21941–1991 51 118 102 92.0

03039000 31920–1939 40 96.1 69.3 54.0

03039200 1966–1978 13 2.8 2.6 2.5

03039925 1986–1998 10 3.6 3.0 2.7

03040000 1915–2008 89 233 200 180

03041000 1940–2006 56 120 103 92.5

03041500 1940–2008 69 568 518 489

03042000 1953–2008 56 150 133 123

03042200 1962–1988 18 5.6 5.1 4.8

03042280 21973–2008 36 38.2 33.6 30.9

03042500 21970–2008 39 125 113 105

03042500 31953–1968 16 104 94.6 88.8

03043000 1909–1951 43 209 179 161

03044000 21953–1991 39 869 772 712

03044000 31941–1951 11 1,060 1,000 974

03045000 1941–2008 68 112 99.5 91.7

03045500 1921–1940 17 128 104 89.1

03047000 1943–1991 49 158 140 129

03047500 1909–1937 29 1,030 869 766
Table 3 45

Table 3. Selected base-flow statistics for streamgage locations in and near Pennsylvania.—Continued

[ft3/s; cubic feet per second; —, statistic not computed]

Streamgage 

number

Period of

record used

in analysis1

Number of

years used

in analysis

10-year

base flow

(ft3/s)

25-year

base flow

(ft3/s)

50-year

base flow

(ft3/s)

03048500 21943–2008 66 1,140 1,000 917

03049000 1942–2008 67 67.8 60.2 55.8

03049500 21967–2008 42 6,910 5,360 4,460

03049500 31940–1965 26 6,120 4,770 3,980

03049800 1964–2008 45 2.0 1.7 1.5

03061500 1909–2008 83 40.3 34.9 31.7

03062400 1966–2002 33 5.5 4.7 4.2

03062500 1947–2008 28 32.8 28.0 25.1

03065000 1942–2008 64 251 224 208

03066000 1923–2008 86 70.9 59.5 52.4

03068800 1975–2008 17 181 167 159

03069000 1912–1993 67 206 188 177

03069500 1914–2008 95 553 482 439

03070000 1925–1996 72 750 650 588

03070420 1979–1995 17 .7 .7 .7

03070500 1911–2008 94 136 113 99.5

03072000 1942–2008 67 71.4 61.4 55.7

03072655 1940–2008 69 2,190 1,860 1,670

03072840 1970–1979 10 48.7 42.5 38.9

03073000 1933–1995 63 50.1 41.9 37.1

03074300 1969–1979 11 2.8 2.5 2.4

03074500 1944–2008 65 44.3 39.9 37.3

03075070 1935–2008 74 2,610 2,260 2,050

03075500 1943–2008 66 116 103 95.1

03076500 21941–2008 67 232 206 190

03076600 1966–2008 43 36.2 31.8 29.1

03077500 1945–1991 47 406 –– 333

03078000 1949–2008 60 49.4 44.3 41.2

03079000 1922–2008 87 234 208 193

03080000 1920–2008 89 104 91.9 84.5

03081000 1942–2008 67 866 756 690

03082200 1963–1978 16 7.1 6.4 6.0

03082500 21926–2008 83 1,000 836 734

03082500 31910–1924 13 529 334 234

03083000 1943–1979 37 2.2 2.0 1.8

03083500 21926–2008 74 1,300 1,170 1,090

03084000 1951–1994 44 1.8 1.5 1.4

03085000 1940–2004 65 4,340 3,800 3,480

03085500 1921–2008 80 108 92.0 82.3

03086000 1935–2008 74 13,600 12,100 11,200

03086500 1943–1993 51 18.9 15.1 12.9

03090500 21945–1992 48 89.3 74.6 66.3

03090500 31933–1942 11 36.0 30.0 26.5

03091500 1931–2008 78 94.9 74.3 62.8

03092000 1943–1993 51 3.6 2.9 2.5
46 Selected Streamflow Statistics for Streamgage Locations in and near Pennsylvania

Table 3. Selected base-flow statistics for streamgage locations in and near Pennsylvania.—Continued

[ft3/s; cubic feet per second; —, statistic not computed]

Streamgage 

number

Period of

record used

in analysis1

Number of

years used

in analysis

10-year

base flow

(ft3/s)

25-year

base flow

(ft3/s)

50-year

base flow

(ft3/s)

03092090 1967–1993 27 8.8 7.7 7.1

03092460 1971–1992 22 54.7 47.7 43.6

03092500 21969–1982 14 46.2 35.1 28.7

03092500 31929–1966 39 23.6 20.2 18.3

03093000 1928–2008 77 30.9 25.5 22.3

03094000 1942–2008 67 231 196 177

03095500 1945–1992 27 35.8 30.1 26.9

03097550 1989–2008 20 341 279 245

03098000 1923–1982 60 267 218 190

03098500 1945–2000 27 14.2 12.3 11.3

03098600 1989–2008 20 387 318 280

03099500 1945–2000 46 445 388 354

03100000 1913–1922 10 65.5 59.3 55.8

03101500 1936–2008 73 93.8 55.7 36.8

03102000 31921–1932 12 78.4 66.2 59.0

03102500 1915–2008 90 47.7 41.3 37.5

03102850 1967–2008 42 199 170 153

03102950 1967–1994 28 38.3 33.6 30.8

03103000 1915–1963 46 54.9 46.8 42.3

03103500 1939–1991 53 282 229 197

03104000 31911–1932 22 212 180 161

03104500 31911–1932 20 269 224 197

03104760 1970–1981 12 .8 .7 .6

03105500 1916–2008 77 880 734 652

03106000 1921–2008 88 136 112 97.9

03106300 21971–2008 36 25.7 18.9 15.1

03106500 21971–2008 38 218 183 162

03106500 31913–1969 57 183 156 140

03107500 1958–2008 51 1,410 1,200 1,070

03108000 21958–2008 51 68.3 58.3 52.5

03108000 31943–1956 14 77.2 67.9 62.2

03109500 1917–2008 92 167 143 129

03110000 1942–2008 67 54.6 46.2 41.3

03111150 1962–1985 19 3.1 2.5 2.1

03111500 1943–2008 66 53.3 46.3 42.3

03111534 1980–1995 16 17,600 15,800 14,700

03111548 1983–2008 21 52.2 46.7 43.6

03112000 1942–2008 67 87.2 74.6 67.4

03114000 1928–2003 52 41.1 31.7 26.4

04209000 1927–2008 68 95.0 83.3 76.4

04212500 1926–1979 47 30.2 24.9 21.9

04213000 1924–2008 70 70.2 59.8 53.6

04213040 1971–1996 26 1.0 .8 .7

04213075 1988–2008 21 2.3 1.9 1.6

04221000 1957–2008 37 137 120 110
Table 3 47

Table 3. Selected base-flow statistics for streamgage locations in and near Pennsylvania.—Continued

[ft3/s; cubic feet per second; —, statistic not computed]

Streamgage 

number

Period of

record used

in analysis1

Number of

years used

in analysis

10-year

base flow

(ft3/s)

25-year

base flow

(ft3/s)

50-year

base flow

(ft3/s)

04223000 1910–2008 99 430 381 352

04224775 1976–2008 33 38.4 33.0 29.9

04227000 1960–2008 44 103 89.0 80.9

1

Climatic year is defined as 12-month period beginning April 1 and ending March 31. The climatic year is designated by the calendar year in 

which it ends.

2

Period of record for post-regulation period.

3

Period of record for pre-regulation period. 
48 Selected Streamflow Statistics for Streamgage Locations in and near Pennsylvania

Table 4. Selected flood-flow statistics for streamgage locations in and near Pennsylvania.—Continued

[ft3/s; cubic feet per second; --, statistic not computed]

Streamgage 

number

Period of record used 

in analysis1

Number of 

years of 

systematic 

record

Number of 

years used 

in analysis

Historical peak(s) 

used in analysis

50-percent 

annual 

exceedance 

(ft3/s)

20-percent 

annual 

exceedance 

(ft3/s)

01417500 21955–2008 44 44 4,730 8,750

01421000 21955–2005 54 54 19,700 31,000

01425000 21964–2008 45 45 4,690 9,060

01426500 21964–2008 45 45 7,420 12,500

01429000 1961–2008 48 48 1,380 2,060

01429500 1960–2008 49 49 1,520 1,920

01430000 1960–2008 43 43 3,860 5,650

01431500 1960–2008 49 49 6,640 10,200

01433500 1940–1995 56 56 1,980 3,970

01436000 21954–2008 55 55 871 2,830

01436500 21954–1993 36 36 1,500 2,820

01436690 1993–2008 16 16 5,180 9,360

01437500 21954–2008 55 55 5,300 9,480

01443900 1967–2008 42 42 143 235

01447680 1966–2008 42 42 350 530

01447800 1961–2008 48 48 5,690 7,860

01449000 1982–2008 27 27 12,000 17,500

01449800 1971–2008 38 38 1,300 1,570

01451000 1961–2008 48 48 18,200 27,300

01453000 1961–2008 48 48 24,100 36,200

01454700 1967–2008 42 42 26,200 38,600

01455500 1928–2008 71 80 2000 207 324

01459500 1974–2008 35 35 6,270 10,100

01464645 1986–2008 23 23 605 1,110

01464720 1991–2008 18 18 2,000 4,080

01465000 1900–1934 32 32 4,480 6,080

01465780 1964–1971 16 16 1,470 2,110

01467500 1942–1969 45 53 1951 1,450 2,640

01470960 1979–2008 30 30 2,450 3,360

01471000 1979–2008 30 30 2,670 3,690

01471510 1980–2008 29 29 17,400 26,900

01472000 1979–2008 30 30 21,200 29,800

01472500 1885–1913 29 29 4,840 6,190

01472810 1991–2008 17 17 5,670 8,720

01473500 1928–2008 23 23 35,700 49,600

01473980 1966–1971 14 14 3,490 4,490

01474500 1932–2008 77 77 41,000 61,200

01475540 1965–1973 8 8 1,690 2,330

01480675 1966–2008 42 42 245 410

01480680 1960–1969 12 12 649 845

01480685 1974–2008 35 35 358 502

01480700 1974–2008 35 35 2,310 3,590

01480870 1974–2008 35 35 3,400 5,070

01493000 1948–2008 58 58 343 642

01493500 1951–2008 57 57 367 891
Table 4 49

Table 4. Selected flood-flow statistics for streamgage locations in and near Pennsylvania.—Continued

[ft3/s; cubic feet per second; --, statistic not computed]

10-percent 

annual 

exceedance 

(ft3/s)

4-percent 

annual 

exceedance 

(ft3/s)

2-percent 

annual 

exceedance 

(ft3/s)

1-percent 

annual 

exceedance 

(ft3/s)

0.2-percent 

annual 

exceedance 

(ft3/s) 

Skew Mean Standard 

deviation

12,300 17,800 22,800 28,600 45,700 0.228 3.686 0.309

39,700 52,100 62,400 73,600 104,000 0.206 4.302 0.228

12,800 18,400 23,300 28,800 44,100 -0.013 3.670 0.341

16,800 23,300 29,100 35,800 55,500 0.381 3.887 0.257

2,530 3,130 3,570 4,010 5,060 -0.182 3.132 0.215

2,190 2,520 2,770 3,030 3,630 0.267 3.188 0.116

7,000 8,910 10,500 12,200 16,800 0.386 3.599 0.187

13,200 17,700 21,700 26,300 39,900 0.627 3.844 0.208

6,000 9,640 13,400 18,200 35,400 0.603 3.330 0.338

5,110 9,430 13,900 19,500 38,000 -0.188 2.920 0.626

3,990 5,890 7,650 9,730 16,100 0.307 3.193 0.312

13,300 19,800 26,100 33,900 59,300 0.591 3.742 0.286

13,200 19,300 25,000 31,700 52,900 0.457 3.746 0.285

313 430 534 654 1,000 0.416 2.172 0.245

659 834 973 1,120 1,480 0.060 2.546 0.212

9,370 11,300 12,900 14,500 18,400 0.169 3.759 0.164

21,200 25,900 29,500 33,100 41,700 -0.081 4.078 0.195

1,710 1,870 1,980 2,080 2,280 -0.306 3.110 0.099

33,500 41,600 47,800 54,100 69,100 -0.107 4.256 0.212

44,500 55,000 63,000 71,000 89,900 -0.159 4.377 0.215

46,500 56,300 63,400 70,300 85,700 -0.300 4.408 0.208

425 587 735 912 1,460 0.806 2.344 0.213

12,900 16,800 19,900 23,100 31,200 -0.045 3.796 0.248

1,460 1,910 2,230 2,530 3,200 -0.591 2.748 0.348

5,790 8,290 10,400 12,600 18,500 -0.253 3.286 0.381

7,310 9,080 10,500 12,200 16,600 0.738 3.670 0.146

2,640 3,430 4,120 4,910 7,210 0.806 3.189 0.173

3,670 5,260 6,690 8,330 13,200 0.231 3.174 0.300

3,930 4,620 5,110 5,580 6,640 -0.214 3.384 0.167

4,360 5,190 5,800 6,400 7,800 -0.100 3.423 0.170

33,500 41,800 48,000 54,300 68,900 -0.234 4.232 0.234

35,800 43,400 49,300 55,300 69,900 0.067 4.329 0.174

7,180 8,520 9,610 10,800 13,800 0.704 3.699 0.118

11,100 14,300 17,000 20,000 27,800 0.228 3.761 0.216

58,900 70,800 79,700 88,600 110,000 -0.005 4.552 0.170

5,150 6,010 6,650 7,310 8,890 0.254 3.548 0.126

75,500 94,400 109,000 124,000 162,000 0.007 4.613 0.206

2,790 3,410 3,900 4,430 5,780 0.377 3.239 0.157

542 734 895 1,070 1,560 0.136 2.394 0.262

984 1,170 1,320 1,470 1,860 0.473 2.822 0.129

578 655 702 742 812 -0.874 2.524 0.206

4,410 5,410 6,120 6,790 8,250 -0.461 3.345 0.245

6,190 7,580 8,600 9,610 11,900 -0.250 3.522 0.215

900 1,300 1,660 2,060 3,250 0.143 2.543 0.318

1,530 2,910 4,560 6,990 17,900 0.815 2.622 0.422
50 Selected Streamflow Statistics for Streamgage Locations in and near Pennsylvania

Table 4. Selected flood-flow statistics for streamgage locations in and near Pennsylvania.—Continued

[ft3/s; cubic feet per second; --, statistic not computed]

Streamgage 

number

Period of record used 

in analysis1

Number of 

years of 

systematic 

record

Number of 

years used 

in analysis

Historical peak(s) 

used in analysis

50-percent 

annual 

exceedance 

(ft3/s)

20-percent 

annual 

exceedance 

(ft3/s)

01495000 1932–2008 75 75 2,850 4,720

01496000 1949–1999 36 51 1999 1,520 2,510

01496200 1967–1999 26 33 1999 1,040 2,060

01500000 21950–2008 59 59 1,810 2,210

01518000 1980–2008 29 29 5,640 6,330

01518700 1980–2008 29 29 6,610 7,920

01520000 1980–2008 29 29 4,440 5,340

01520500 21980–2008 29 29 10,500 12,300

01521500 21940–2008 69 69 692 858

01523500 21949–2008 60 60 1,390 2,090

01524500 1943–2008 66 66 3,110 4,600

01526500 21979–2008 30 30 21,300 27,600

01527500 1939–45, 2002–08 15 70 1972 2,770 3,520

01529000 1937–1982 46 46 755 1,280

01529950 21979–2008 30 30 30,200 39,600

01530332 1988–2008 21 21 32,900 43,600

01530500 21990–2008 18 18 2,050 2,810

01531000 21980–2008 29 29 38,100 51,500

01531500 1893–2008 115 115 103,000 139,000

01533400 21980–2008 29 29 111,000 151,000

01533500 1941–1958 18 18 2,020 4,330

01534300 1960–2008 49 49 778 963

01534500 1960–2008 49 49 2,430 3,910

01536000 1960–2008 49 49 6,320 10,500

01536500 1900–2008 109 109 121,000 165,000

01537000 1942–1993 52 52 1,050 1,710

01537500 1940–1990 51 51 512 968

01540500 1905–2008 104 104 126,000 171,000

01541200 1966–2008 43 43 4,770 5,620

01541303 1979–2008 30 30 5,680 6,690

01541308 1968–1979 12 12 296 460

01541500 1961–2008 48 48 6,170 8,900

01542500 1961–2008 48 48 19,400 29,400

01544000 1956–2008 53 53 4,910 6,130

01545000 1962–2008 47 47 4,700 5,650

01545500 31908–1961 63 73 60,000 90,600

01547500 1971–2008 38 38 2,870 3,560

01548005 21970–2008 39 39 5,210 7,920

01548005 31910–1969 58 58 10,100 14,300

01551500 21962–2008 46 46 81,300 122,000

01551500 31900–1961 67 73 97,900 139,000

01553500 21967–2008 42 42 89,000 134,000

01553500 31940–1966 27 31 1936 112,000 159,000

01554000 1938–2008 71 71 211,000 295,000

01554500 1940–1993 54 54 894 1,410
Table 4 51

Table 4. Selected flood-flow statistics for streamgage locations in and near Pennsylvania.—Continued

[ft3/s; cubic feet per second; --, statistic not computed]

10-percent 

annual 

exceedance 

(ft3/s)

4-percent 

annual 

exceedance 

(ft3/s)

2-percent 

annual 

exceedance 

(ft3/s)

1-percent 

annual 

exceedance 

(ft3/s)

0.2-percent 

annual 

exceedance 

(ft3/s) 

Skew Mean Standard 

deviation

6,220 8,400 10,200 12,300 17,900 0.195 3.464 0.254

3,400 4,840 6,180 7,810 13,000 0.711 3.210 0.241

3,030 4,640 6,180 8,060 14,100 0.338 3.038 0.338

2,490 2,880 3,180 3,500 4,320 0.800 3.269 0.095

6,720 7,150 7,440 7,700 8,250 -0.125 3.750 0.061

8,850 10,100 11,100 12,100 14,700 0.838 3.832 0.086

5,890 6,520 6,970 7,400 8,360 0.003 3.648 0.095

13,200 14,200 14,900 15,500 16,600 -0.432 4.015 0.087

1,000 1,220 1,410 1,640 2,280 1.691 2.867 0.101

2,650 3,480 4,200 5,020 7,340 0.571 3.162 0.197

5,760 7,440 8,870 10,400 14,800 0.493 3.509 0.190

31,600 36,500 40,100 43,600 51,700 0.005 4.328 0.134

4,100 -- 5,560 6,270 8,190 0.893 3.459 0.115

1,710 2,330 2,850 3,430 5,010 0.127 2.884 0.269

45,300 52,100 56,900 61,500 71,700 -0.190 4.476 0.144

51,000 60,500 67,900 75,400 94,000 0.254 4.523 0.141

3,300 3,910 4,360 4,810 5,840 0.074 3.309 0.165

60,600 72,500 81,600 90,900 114,000 0.180 4.585 0.152

165,000 198,000 224,000 251,000 318,000 0.231 5.017 0.154

177,000 210,000 236,000 262,000 324,000 0.112 5.050 0.153

6,640 10,700 14,800 20,000 37,500 0.360 3.329 0.375

1,060 1,150 1,210 1,260 1,350 -0.723 2.876 0.125

5,110 6,900 8,450 10,200 15,200 0.382 3.401 0.234

13,900 18,600 22,500 26,800 38,300 0.082 3.804 0.262

194,000 231,000 259,000 287,000 354,000 0.059 5.085 0.157

2,210 2,900 3,450 4,020 5,490 -0.053 3.018 0.257

1,360 1,950 2,470 3,070 4,750 0.070 2.713 0.325

202,000 241,000 272,000 302,000 377,000 0.144 5.105 0.154

6,180 6,910 7,450 8,000 9,320 0.570 3.686 0.079

7,380 8,280 8,960 9,650 11,400 0.678 3.763 0.079

585 764 912 1,070 1,510 0.245 2.481 0.220

11,000 14,100 16,700 19,700 27,800 0.591 3.808 0.177

38,200 52,300 65,300 80,900 129,000 0.946 4.318 0.197

6,870 7,740 8,360 8,960 10,300 -0.074 3.690 0.116

6,200 6,840 7,270 7,680 8,570 -0.136 3.670 0.097

114,000 148,000 177,000 208,000 293,000 0.358 4.790 0.204

3,950 4,390 4,680 4,950 5,510 -0.333 3.452 0.117

10,400 14,400 18,200 22,800 37,900 1.105 3.752 0.196

17,100 20,700 23,300 26,100 32,500 -0.032 4.003 0.179

154,000 199,000 238,000 280,000 397,000 0.413 4.924 0.199

167,000 204,000 233,000 262,000 333,000 0.069 4.993 0.179

170,000 222,000 266,000 314,000 449,000 0.434 4.964 0.202

194,000 -- 286,000 331,000 451,000 0.477 5.062 0.171

357,000 441,000 510,000 582,000 773,000 0.387 5.335 0.165

1,580 2,550 3,190 3,940 6,260 0.732 2.978 0.217
52 Selected Streamflow Statistics for Streamgage Locations in and near Pennsylvania

Table 4. Selected flood-flow statistics for streamgage locations in and near Pennsylvania.—Continued

[ft3/s; cubic feet per second; --, statistic not computed]

Streamgage 

number

Period of record used 

in analysis1

Number of 

years of 

systematic 

record

Number of 

years used 

in analysis

Historical peak(s) 

used in analysis

50-percent 

annual 

exceedance 

(ft3/s)

20-percent 

annual 

exceedance 

(ft3/s)

01563200 1973–2008 36 36 12,400 14,900

01563500 21973–2009 37 37 23,600 32,600

01563500 31936–1972 35 37 1936 26,500 45,300

01567000 21973–2008 36 36 38,000 55,300

01567000 31900–1972 74 84 45,500 69,800

01570500 1891–2008 118 118 260,000 362,000

01573086 1963–1981 18 18 166 616

01574500 1967–2008 42 42 1,560 2,960

01575000 1972–1995 24 24 4,180 7,990

01575500 1947–2008 62 62 3,920 6,360

01576000 1932–2008 77 77 266,000 382,000

01580000 1927–2008 82 82 3,610 5,640

01581500 1944–2008 34 34 1,290 2,600

01581700 1967–2008 41 41 2,420 4,750

01582000 1933–2008 64 76 1933 2,270 3,580

01582500 1984–2008 25 25 2,650 4,140

01583000 1948–1981 34 34 154 251

01583100 1982–2008 19 19 693 1,280

01583500 1944–2008 64 64 2,140 4,140

01583600 1983–2008 25 25 1,090 1,640

01584050 1976–2008 33 33 621 1,400

01584500 1927–2008 68 68 2,710 4,820

01585095 1992–2008 16 16 395 624

01585100 1959–2008 47 47 1,300 2,210

01585200 1957–2008 42 42 681 1,190

01585300 1959–1989 29 29 1,240 2,070

01585400 1958–1987 29 29 322 643

01585500 1950–2008 60 60 244 556

01586000 1945–2008 63 63 2,280 4,030

01586210 1983–2008 26 26 716 1,260

01586610 1983–2008 26 26 1,210 2,400

01587500 1948–1980 32 32 2,670 5,440

01589000 21955–2004 42 42 4,440 10,400

01589000 31944–1954 10 10 6,990 10,800

01589100 1956–2008 42 53 1956 628 947

01589300 1956–2008 45 45 1,620 3,080

01589330 1960–2008 38 38 1,540 2,690

01589440 1966–2008 43 43 1,070 2,260

01589500 1944–2008 39 39 76.9 125

01594930 1980–2004 26 26 384 583

01594936 1980–2007 28 28 127 258

01594950 1987–2008 22 22 139 264

01595000 1956–2008 54 54 3,240 5,290

01595200 1962–2008 47 47 1,880 3,260

01595500 1950–2008 58 58 7,500 12,200
Table 4 53

Table 4. Selected flood-flow statistics for streamgage locations in and near Pennsylvania.—Continued

[ft3/s; cubic feet per second; --, statistic not computed]

10-percent 

annual 

exceedance 

(ft3/s)

4-percent 

annual 

exceedance 

(ft3/s)

2-percent 

annual 

exceedance 

(ft3/s)

1-percent 

annual 

exceedance 

(ft3/s)

0.2-percent 

annual 

exceedance 

(ft3/s) 

Skew Mean Standard 

deviation

15,900 16,800 17,300 17,600 18,100 -1.220 4.067 0.124

39,000 47,800 54,800 62,100 81,200 0.362 4.383 0.159

62,300 90,100 116,000 148,000 249,000 0.642 4.450 0.259

68,400 86,600 102,000 118,000 161,000 0.356 4.591 0.186

89,400 119,000 144,000 173,000 254,000 0.514 4.676 0.208

439,000 548,000 638,000 737,000 1,000,000 0.574 5.430 0.159

1,320 3,150 5,710 9,990 33,000 0.525 2.275 0.638

4,500 7,530 10,900 15,600 34,900 1.177 3.250 0.301

11,900 19,000 26,400 36,200 72,000 0.818 3.663 0.308

8,660 12,600 16,400 21,200 37,400 1.028 3.631 0.229

475,000 612,000 729,000 861,000 1,240,000 0.705 5.446 0.173

7,240 9,560 11,500 13,700 19,800 0.336 3.570 0.221

3,810 5,760 7,580 9,730 16,300 0.176 3.122 0.353

6,690 9,590 12,000 14,800 22,100 -0.119 3.377 0.354

4,620 6,150 7,460 8,910 13,000 0.343 3.369 0.225

5,190 6,570 7,620 8,690 11,300 -0.156 3.417 0.236

330 448 551 667 998 0.360 2.203 0.240

1,780 2,540 3,200 3,950 6,090 0.099 2.846 0.313

6,160 9,780 13,500 18,300 35,400 0.697 3.366 0.317

2,070 2,700 3,230 3,810 5,430 0.425 3.051 0.201

2,190 3,610 5,030 6,850 13,100 0.293 2.813 0.403

6,600 9,340 11,800 14,500 22,500 0.221 3.443 0.289

828 1,160 1,470 1,850 3,060 0.902 2.629 0.216

2,960 4,090 5,080 6,190 9,350 0.256 3.126 0.265

1,610 2,240 2,770 3,370 5,040 0.127 2.839 0.285

2,750 3,790 4,700 5,750 8,790 0.372 3.110 0.250

982 1,620 2,310 3,230 6,770 0.839 2.554 0.328

883 1,480 2,100 2,900 5,720 0.351 2.411 0.407

5,760 8,850 12,000 16,100 30,900 0.983 3.402 0.267

1,720 2,420 3,040 3,750 5,810 0.253 2.867 0.282

3,440 5,040 6,470 8,090 12,700 0.017 3.085 0.352

8,420 14,100 20,300 28,700 61,200 0.826 3.472 0.339

17,200 31,200 47,000 69,400 162,000 0.700 3.695 0.406

13,600 17,700 21,000 24,700 34,400 0.240 3.853 0.216

1,220 1,650 2,040 2,490 3,890 0.856 2.825 0.195

4,540 7,160 9,840 13,300 25,700 0.748 3.247 0.307

3,800 5,740 7,670 10,100 18,700 0.885 3.225 0.265

3,610 6,330 9,400 13,700 31,800 0.926 3.083 0.355

162 214 257 303 423 0.070 1.889 0.249

724 913 1,060 1,210 1,600 0.002 2.585 0.215

389 622 857 1,160 2,210 0.524 2.134 0.344

378 563 737 944 1,590 0.335 2.162 0.316

6,960 9,450 11,600 14,000 20,900 0.330 3.524 0.243

4,600 6,970 9,350 12,400 23,200 0.961 3.315 0.260

16,500 23,600 30,300 38,600 65,400 0.865 3.908 0.231
54 Selected Streamflow Statistics for Streamgage Locations in and near Pennsylvania

Table 4. Selected flood-flow statistics for streamgage locations in and near Pennsylvania.—Continued

[ft3/s; cubic feet per second; --, statistic not computed]

Streamgage 

number

Period of record used 

in analysis1

Number of 

years of 

systematic 

record

Number of 

years used 

in analysis

Historical peak(s) 

used in analysis

50-percent 

annual 

exceedance 

(ft3/s)

20-percent 

annual 

exceedance 

(ft3/s)

01595800 31966–1981 15 15 7,750 11,800

01595800 21982–2008 26 26 4,800 6,290

01596500 1948–2008 60 60 1,480 2,340

01597000 1948–1981 33 33 484 843

01597500 1951–2008 58 58 2,690 4,070

01598500 21951–2008 58 58 7,710 11,800

01599000 1905–2008 78 78 1,860 3,000

01600000 21951–2008 57 57 10,600 15,400

01600000 31924–1950 15 27 1924 16,500 28,500

01601500 1930–2008 79 79 6,070 10,300

01603000 21982–2008 27 27 12,900 19,800

01603000 31929–1981 52 92 17,800 28,300

01609000 1928–2008 28 73 1936 3,980 6,710

01611500 1923–2008 85 120 13,000 24,000

01613000 1933–2008 76 76 52,400 85,100

01614500 1929–2008 80 85 1924 7,560 11,400

01617800 1964–2008 44 44 102 196

01619000 1948–2008 23 23 1,460 2,710

01619500 1900–2008 81 81 2,610 4,510

01637500 1947–2008 61 61 2,480 4,560

01639000 1942–2008 67 67 8,470 11,700

01639140 1990–2002 12 12 1,860 2,910

01639500 1948–2008 61 61 3,260 5,460

01640500 1932–1984 53 53 377 875

01640965 1982–1994 13 13 114 249

01640970 1982–1991 10 10 323 794

01641000 1950–1992 43 43 826 1,410

01641500 1948–1984 37 37 134 307

01642500 1932–1982 49 49 2,460 4,130

01643000 1930–2008 79 79 18,300 27,500

01643500 1948–2008 58 58 2,460 4,710

03012550 21966–1991 19 19 19,500 22,300

03012550 31936–1965 30 30 34,100 44,900

03014500 1935–2008 74 74 1,300 1,590

03015000 21950–2008 59 59 7,460 9,610

03015000 31940–1949 10 14 1936 9,260 12,700

03016000 21966–2008 41 41 30,900 36,300

03016000 31942–1965 24 24 51,500 70,800

03020000 1941–1991 51 51 6,590 8,340

03021500 1910–1971 61 61 6,900 10,200

03021520 1972–1991 20 20 2,380 3,100

03022554 1975–1991 17 17 608 775

03023100 1989–2008 20 20 10,600 13,200

03024000 1971–2008 38 38 12,300 14,900

03025500 21966–2008 44 44 57,300 70,200
Table 4 55

Table 4. Selected flood-flow statistics for streamgage locations in and near Pennsylvania.—Continued

[ft3/s; cubic feet per second; --, statistic not computed]

10-percent 

annual 

exceedance 

(ft3/s)

4-percent 

annual 

exceedance 

(ft3/s)

2-percent 

annual 

exceedance 

(ft3/s)

1-percent 

annual 

exceedance 

(ft3/s)

0.2-percent 

annual 

exceedance 

(ft3/s) 

Skew Mean Standard 

deviation

15,200 20,300 24,700 29,900 44,900 0.627 3.910 0.204

7,090 7,930 8,460 8,920 9,780 -0.691 3.663 0.158

3,060 4,160 5,140 6,270 9,630 0.588 3.193 0.220

1,170 1,720 2,250 2,890 4,990 0.659 2.714 0.267

5,130 6,630 7,870 9,220 12,900 0.296 3.439 0.207

15,100 20,300 25,000 30,400 46,400 0.712 3.911 0.202

3,940 5,370 6,620 8,060 12,200 0.460 3.288 0.232

18,700 23,000 26,200 29,500 37,300 -0.059 4.023 0.196

38,900 55,200 70,000 87,300 139,000 0.407 4.235 0.270

14,200 20,600 26,800 34,400 59,300 0.757 3.815 0.252

26,100 36,500 46,500 58,600 98,600 1.104 4.147 0.201

37,500 52,300 65,800 81,900 132,000 0.760 4.279 0.222

8,910 12,200 14,900 18,000 26,600 0.189 3.608 0.263

33,200 47,000 58,900 72,200 109,000 0.033 4.114 0.317

113,000 156,000 194,000 239,000 372,000 0.532 4.740 0.236

14,400 18,700 22,200 26,200 36,900 0.367 3.891 0.203

277 401 510 634 986 0.043 2.011 0.335

3,780 5,430 6,880 8,530 13,300 0.116 3.170 0.316

6,110 8,570 10,700 13,200 20,500 0.297 3.430 0.272

6,340 9,100 11,500 14,300 22,400 0.163 3.402 0.308

14,000 17,100 19,600 22,200 28,800 0.337 3.937 0.159

3,830 5,320 6,700 8,340 13,500 0.854 3.299 0.213

7,550 11,100 14,700 19,100 34,300 0.968 3.552 0.243

1,420 2,440 3,520 4,970 10,300 0.436 2.606 0.413

394 665 954 1,340 2,770 0.562 2.092 0.379

1,320 2,360 3,500 5,040 11,000 0.429 2.541 0.441

1,850 2,480 3,000 3,550 4,990 -0.035 2.915 0.276

505 904 1,350 1,980 4,560 0.706 2.173 0.398

5,610 8,020 10,300 13,000 21,400 0.648 3.418 0.249

34,500 44,400 52,600 61,500 85,500 0.320 4.273 0.202

7,060 11,500 16,200 22,500 46,400 0.930 3.438 0.307

23,700 25,100 26,000 26,700 28,000 -0.647 4.282 0.078

51,200 -- 63,100 67,500 76,800 -0.401 4.523 0.151

1,780 2,010 2,180 2,350 2,740 0.197 3.117 0.103

11,000 12,700 14,000 15,300 18,300 0.113 3.875 0.129

14,900 17,500 19,400 21,200 25,200 -0.245 3.960 0.171

39,700 43,800 46,700 49,600 56,100 0.215 4.493 0.082

82,800 97,200 107,000 117,000 139,000 -0.258 4.705 0.171

9,440 10,800 11,700 12,600 14,800 0.004 3.819 0.121

12,600 15,700 18,100 20,600 26,800 0.030 3.840 0.202

3,540 4,040 4,390 4,710 5,420 -0.269 3.371 0.142

878 1,000 1,090 1,170 1,360 -0.081 2.782 0.127

14,800 16,600 17,800 19,000 21,500 -0.208 4.020 0.119

16,300 17,800 18,800 19,700 21,400 -0.485 4.083 0.107

77,600 86,000 91,600 96,800 108,000 -0.268 4.753 0.109
56 Selected Streamflow Statistics for Streamgage Locations in and near Pennsylvania

Table 4. Selected flood-flow statistics for streamgage locations in and near Pennsylvania.—Continued

[ft3/s; cubic feet per second; --, statistic not computed]

Streamgage 

number

Period of record used 

in analysis1

Number of 

years of 

systematic 

record

Number of 

years used 

in analysis

Historical peak(s) 

used in analysis

50-percent 

annual 

exceedance 

(ft3/s)

20-percent 

annual 

exceedance 

(ft3/s)

03025500 31913–1965 51 53 1913 77,200 106,000

03027500 1953–1991 39 39 568 892

03028500 1953–2008 56 56 3,870 5,680

03031500 21966–2008 42 42 81,600 103,000

03031500 31941–1965 42 42 101,000 133,000

03036000 1941–1991 52 52 4,870 6,540

03036500 21966–2008 44 44 96,500 125,000

03036500 31883–1965 77 101 1865, 1873, 1881 126,000 171,000

03039000 1941–1991 51 51 3,800 4,840

03039925 1985–1998 11 11 81.4 119

03042280 1971–2008 38 38 1,300 2,520

03042500 1969–2008 40 40 3,900 7,510

03044000 21952–1991 40 40 17,800 23,100

03044000 31940–1951 12 12 33,800 47,500

03047000 1942–1991 50 50 3,810 4,820

03048500 1942–2008 67 67 21,600 30,300

03049500 21966–2008 43 43 99,200 130,000

03049500 31936–1965 27 30 1936 136,000 188,000

03072655 1939–2008 69 73 1936 78,500 107,000

03075070 1934–2008 75 75 86,000 115,000

03075500 1941–2008 67 67 4,200 6,380

03076500 1899–2008 85 85 6,270 8,820

03076600 1965–2008 44 44 1,580 2,320

03077500 1944–1991 48 48 5,050 6,770

03078000 1948–2008 61 61 2,000 2,960

03081000 1942–2008 67 67 16,000 22,700

03082500 1942–2008 67 67 23,600 35,300

03083500 1942–2008 67 67 28,800 43,400

03085000 1936–2004 66 69 1936 105,000 143,000

03086000 1934–2008 74 74 187,000 255,000

03086500 1941–1993 66 66 2,180 3,500

03090500 21943–1992 49 49 1,800 2,700

03090500 31931–1942 12 12 5,560 7,410

03091500 1930–2008 79 79 1,890 2,930

03092000 1941–1993 52 52 1,090 1,660

03092090 1966–1993 42 42 920 1,410

03092460 1969–1992 23 23 552 742

03092500 21967–1982 15 15 859 1,280

03092500 31927–1966 40 40 2,600 3,850

03093000 1926–2008 79 79 2,700 3,770

03094000 1937–2008 67 67 5,540 7,570

03095500 1944–1991 48 48 578 871

03097550 1988–2008 21 21 6,890 9,160

03098000 1922–1982 61 61 8,520 11,500

03098500 1944–2000 34 34 1,470 2,350
Table 4 57

Table 4. Selected flood-flow statistics for streamgage locations in and near Pennsylvania.—Continued

[ft3/s; cubic feet per second; --, statistic not computed]

10-percent 

annual 

exceedance 

(ft3/s)

4-percent 

annual 

exceedance 

(ft3/s)

2-percent 

annual 

exceedance 

(ft3/s)

1-percent 

annual 

exceedance 

(ft3/s)

0.2-percent 

annual 

exceedance 

(ft3/s) 

Skew Mean Standard 

deviation

125,000 148,000 166,000 183,000 224,000 -0.036 4.887 0.163

1,180 1,630 2,040 2,540 4,080 0.796 2.782 0.215

7,050 9,000 10,600 12,400 17,100 0.398 3.601 0.188

117,000 133,000 145,000 156,000 181,000 -0.029 4.911 0.122

153,000 176,000 192,000 207,000 241,000 -0.256 4.997 0.150

7,750 9,390 10,700 12,100 15,800 0.492 3.700 0.143

143,000 166,000 182,000 198,000 236,000 0.056 4.986 0.132

201,000 238,000 265,000 292,000 356,000 -0.020 5.101 0.158

5,440 6,130 6,590 7,020 7,920 -0.331 3.573 0.132

148 188 221 256 351 0.351 1.922 0.189

3,800 6,180 8,710 12,100 24,700 0.857 3.158 0.315

11,200 18,100 25,400 35,100 71,200 0.859 3.635 0.311

26,300 30,200 33,000 35,600 41,500 -0.131 4.248 0.136

56,800 68,900 78,000 87,200 110,000 0.024 4.529 0.176

5,430 6,150 6,660 7,150 8,230 -0.111 3.579 0.123

36,600 45,200 52,100 59,400 78,500 0.348 4.345 0.167

151,000 177,000 197,000 217,000 264,000 0.154 5.000 0.138

225,000 274,000 312,000 351,000 450,000 0.226 5.140 0.163

126,000 -- 170,000 189,000 234,000 0.096 4.897 0.158

133,000 -- 171,000 186,000 219,000 -0.178 4.930 0.154

8,050 10,400 12,400 14,600 20,500 0.325 3.635 0.207

10,600 12,900 14,700 16,600 21,200 0.119 3.800 0.174

2,830 3,480 3,970 4,470 5,640 -0.113 3.194 0.203

7,780 8,950 9,750 10,500 12,100 -0.376 3.694 0.160

3,720 4,830 5,780 6,840 9,810 0.548 3.319 0.190

27,900 35,300 41,500 48,300 66,900 0.540 4.219 0.172

44,300 57,300 68,200 80,100 113,000 0.394 4.386 0.198

54,800 71,100 84,800 99,900 141,000 0.392 4.473 0.202

167,000 198,000 220,000 243,000 295,000 -0.056 5.020 0.160

304,000 371,000 424,000 481,000 629,000 0.438 5.283 0.151

4,560 6,120 7,450 8,930 13,100 0.300 3.349 0.236

3,340 4,210 4,880 5,590 7,340 0.032 3.256 0.209

8,540 9,860 10,800 11,700 13,600 -0.272 3.738 0.155

3,700 4,770 5,640 6,560 8,960 0.128 3.282 0.221

2,100 2,750 3,300 3,920 5,630 0.439 3.053 0.204

1,810 2,400 2,910 3,500 5,160 0.527 2.982 0.208

878 1,060 1,210 1,360 1,750 0.414 2.752 0.145

1,610 2,090 2,510 2,970 4,260 0.519 2.950 0.193

4,750 5,960 6,910 7,900 10,400 0.087 3.418 0.201

4,460 5,310 5,930 6,540 7,930 -0.155 3.428 0.175

9,010 10,900 12,500 14,100 18,100 0.328 3.752 0.154

1,050 1,270 1,410 1,550 1,840 -0.516 2.742 0.231

10,600 12,200 13,400 14,500 17,000 -0.222 3.833 0.152

13,400 -- 17,700 19,500 23,800 0.025 3.931 0.153

3,040 4,040 4,870 5,780 8,260 0.203 3.174 0.238
58 Selected Streamflow Statistics for Streamgage Locations in and near Pennsylvania

Table 4. Selected flood-flow statistics for streamgage locations in and near Pennsylvania.—Continued

[ft3/s; cubic feet per second; --, statistic not computed]

Streamgage 

number

Period of record used 

in analysis1

Number of 

years of 

systematic 

record

Number of 

years used 

in analysis

Historical peak(s) 

used in analysis

50-percent 

annual 

exceedance 

(ft3/s)

20-percent 

annual 

exceedance 

(ft3/s)

03098600 1988–2008 21 21 9,380 12,500

03099500 1944–2000 48 48 9,420 12,600

03101500 1935–2008 75 75 902 1,150

03102000 31920–1932 13 13 2,190 2,570

03102850 1966–2008 43 43 4,550 5,200

03103500 1939–1991 52 52 4,750 7,590

03105500 1916–2008 79 79 22,100 29,500

03106300 1970–2008 38 38 346 477

03106500 1969–2008 40 40 6,290 7,970

03107500 1936–2008 73 73 33,300 44,300

03110000 1941–2008 68 68 3,090 4,600

03111500 1942–2008 67 67 2,860 4,250

03111534 1884–1995 22 112 1884, 1913, 1942 221,000 297,000

03111548 1982–2008 25 25 2,660 4,160

03112000 21987–2008 22 22 5,590 8,310

03114000 1927–2003 53 53 6,080 9,240

04209000 1925–2008 72 72 8,900 13,400

04212500 1924–1980 54 54 4,470 6,460 1

Water year is defined as a 12-month period beginning October 1 and ending September 30. The water year is designated by the calendar year in which it 

ends.

2

Period of record for post-regulation period.

3

Period of record for pre-regulation period. 
Table 4 59

Table 4. Selected flood-flow statistics for streamgage locations in and near Pennsylvania.—Continued

[ft3/s; cubic feet per second; --, statistic not computed]

10-percent 

annual 

exceedance 

(ft3/s)

4-percent 

annual 

exceedance 

(ft3/s)

2-percent 

annual 

exceedance 

(ft3/s)

1-percent 

annual 

exceedance 

(ft3/s)

0.2-percent 

annual 

exceedance 

(ft3/s) 

Skew Mean Standard 

deviation

14,300 16,300 17,700 19,000 21,600 -0.429 3.961 0.158

14,800 17,600 19,700 21,800 26,900 0.120 3.977 0.150

1,300 1,480 1,600 1,720 1,970 -0.170 2.952 0.128

2,800 3,050 3,230 3,390 3,750 -0.068 3.340 0.083

5,500 5,780 5,940 6,060 6,280 -0.894 3.646 0.082

9,980 13,700 17,000 20,800 32,300 0.574 3.699 0.227

34,600 41,100 46,100 51,200 63,600 0.189 4.348 0.146

571 698 800 907 1,180 0.349 2.548 0.159

8,920 9,970 10,700 11,300 12,600 -0.432 3.789 0.131

51,600 60,900 67,800 74,800 91,500 0.102 4.525 0.145

5,760 7,410 8,780 10,300 14,400 0.380 3.502 0.196

5,180 6,380 7,280 8,180 10,300 -0.155 3.451 0.209

348,000 415,000 465,000 517,000 642,000 0.166 5.349 0.149

5,260 6,770 7,970 9,240 12,500 0.043 3.427 0.229

10,700 14,600 18,200 22,600 36,300 1.080 3.780 0.187

11,500 14,600 17,000 19,500 25,900 0.027 3.785 0.216

16,900 21,700 25,700 30,100 41,600 0.279 3.959 0.205

7,830 9,590 10,900 12,300 15,600 -0.035 3.649 0.192
60 Selected Streamflow Statistics for Streamgage Locations in and near Pennsylvania

Table 5. Selected mean-flow and flow-duration statistics for streamgage locations in and near Pennsylvania.—Continued

[ft2/s; cubic feet per second; --, statistic not computed; <, less than]

Streamgage

number

Period of 

record used 

in analysis1

Number of 

years used 

in analysis

Mean 

annual 

flow

(ft2/s)

Harmonic 

mean

(ft2/s)

99-percent 

exceedance

(ft2/s)

95-percent 

exceedance

(ft2/s)

90-percent 

exceedance

(ft2/s)

85-percent 

exceedance

(ft2/s)

80-percent 

exceedance

(ft2/s)

01411456 1988–2008 20 10.5 3.2 0.1 0.7 1.2 1.6 2.1

01411500 1933–2008 75 163 120 39.1 55.1 67.4 76.9 86.4

01412000 1932–1984 32 37.1 26.8 7.0 12.3 16.0 18.2 20.4

01412800 1978–2008 15 36.0 28.0 12.1 16.6 18.6 20.5 22.3

01413500 1937–2008 71 315 81.1 12.4 21.0 30.8 43.1 58.0

01414000 1942–2008 32 68.3 14.6 2.0 3.4 5.0 7.6 11.2

01414500 1937–2008 71 56.0 15.8 2.5 4.1 6.1 8.4 11.4

01415000 1937–2008 71 60.0 13.9 1.8 3.5 5.5 7.7 10.5

01417000 21955–2008 53 226 25.4 5.6 6.9 8.0 9.0 16.9

01417000 31942–1954 12 713 210 30.1 52.9 75.0 102 134

01417500 31935–1954 19 871 256 40.1 67.0 96.2 133 173

01417500 21955–2008 43 386 158 39.0 65.7 80.1 92.6 103

01420000 1925–1981 56 44.9 12.6 2.2 3.7 5.1 6.6 8.2

01420500 1914–2008 94 568 203 40.3 61.7 85.8 109 134

01421000 31913–1954 41 1,690 566 108 166 232 294 354

01421000 21955–2008 53 1,150 506 129 188 240 288 332

01421900 1937–2008 45 241 55.6 7.9 14.4 20.7 28.8 39.0

01422500 1938–2008 44 93.4 18.0 2.4 4.3 6.5 9.9 14.4

01423000 1951–2008 57 600 153 24.3 40.0 58.5 81.0 106

0142400103 1953–2008 26 35.1 3.8 .4 .8 1.4 2.2 3.3

01425000 31953–1963 10 768 206 40.6 56.7 74.3 94.3 121

01425000 21964–2008 44 619 66.7 9.6 14.8 24.8 32.9 39.9

01425675 1970–1981 11 9.0 1.9 .1 .3 .6 .9 1.2

01426000 1941–1973 32 110 16.4 2.0 3.7 5.6 8.3 12.5

01426500 21964–2008 44 856 303 46.1 97.0 134 168 202

01426500 31913–1963 50 1,050 298 51.0 80.2 118 155 198

01427500 1941–1982 41 177 45.6 7.0 13.1 18.6 24.4 31.0

01427510 21976–2008 32 2,900 1,460 499 683 817 905 992

01428500 1941–2008 67 3,340 1,480 309 616 807 920 1,030

01428750 1987–2008 21 84.7 26.5 5.8 8.0 10.0 13.0 16.0

01429000 21961–2008 47 109 34.6 6.2 10.6 14.9 19.3 23.9

01429000 31945–1960 15 117 37.3 8.2 11.0 15.0 19.0 23.0

01429500 21960–2008 48 118 27.3 3.8 7.4 11.1 15.2 20.1

01429500 31944–1959 15 114 25.9 4.0 6.6 9.5 13.7 17.8

01430000 21960–2008 32 289 82.3 14.1 22.7 31.7 43.4 57.9

01430000 31949–1959 10 302 84.9 17.0 24.3 32.1 39.8 48.7

01430500 1923–1938 15 350 125 27.7 39.1 53.0 65.8 79.2

01431000 1946–1960 14 133 26.2 3.6 6.7 9.8 13.0 17.0

01431500 31909–1959 28 487 133 23.1 37.4 49.3 63.1 80.9

01431500 21960–2008 48 504 -- 25.1 40.1 55.4 73.4 93.7

01432000 31910–1925 15 397 108 28.6 42.8 59.9 78.6 98.4

01433500 1940–1995 55 344 119 19.2 28.6 41.2 61.5 85.8

01434000 1905–2008 103 5,260 2,440 518 946 1,270 1,490 1,650

0143400680 1991–2008 17 32.7 13.8 3.2 4.7 6.6 8.2 9.8

01434017 1992–2008 16 73.2 33.3 7.2 10.9 15.1 19.1 23.0
Table 5 61

Table 5. Selected mean-flow and flow-duration statistics for streamgage locations in and near Pennsylvania.—Continued

[ft3/s; cubic feet per second; --, statistic not computed; <, less than]

70-percent 

exceedance

(ft3/s)

60-percent 

exceedance

(ft3/s)

50-percent 

exceedance

(ft3/s)

40-percent 

exceedance

(ft3/s)

30-percent 

exceedance

(ft3/s)

20-percent 

exceedance

(ft3/s)

15-percent 

exceedance

(ft3/s)

10-percent 

exceedance

(ft3/s)

5-percent 

exceedance

(ft3/s)

1-percent 

exceedance

(ft3/s)

3.4 5.1 7.1 9.6 12.9 16.9 19.9 24.0 33.2 57.7

103 123 143 168 193 232 253 282 341 498

24.4 28.3 32.7 37.1 43.2 49.7 56.7 64.0 80.7 132

24.7 27.1 30.0 33.2 36.3 42.5 47.3 56.1 76.3 163

90.4 130 180 244 328 456 565 726 1,040 2,280

19.0 28.3 39.4 52.9 71.9 101 125 157 230 508

17.7 24.7 33.5 44.2 58.7 80.8 97.7 126 181 415

17.0 25.1 34.7 46.5 62.5 87.4 107 139 200 432

21.9 45.6 59.9 76.4 103 248 417 645 986 2,660

201 287 408 566 778 1,080 1,300 1,660 2,330 4,630

258 365 504 683 934 1,290 1,580 1,980 2,830 5,660

127 153 188 242 339 525 648 786 1,280 3,100

12.5 17.2 22.6 30.5 41.7 60.3 75.8 102 162 380

188 250 328 428 568 786 980 1,270 1,850 4,010

517 705 962 1,300 1,760 2,460 3,050 3,910 5,480 10,700

425 535 661 803 1,060 1,540 1,910 2,560 3,850 7,890

64.4 94.3 133 183 250 352 440 569 821 1,800

24.4 35.9 50.2 69.1 95.0 138 170 221 329 731

165 240 334 454 618 886 1,070 1,370 2,010 4,250

7.0 11.0 18.0 25.0 35.0 50.0 63.0 83.0 122 270

187 279 394 559 782 1,150 1,420 1,830 2,610 5,950

59.2 181 324 487 746 1,040 1,240 1,550 2,170 4,230

1.9 3.1 4.6 6.3 8.6 13.0 16.1 21.6 34.5 73.8

21.7 34.7 51.9 74.2 106 157 195 260 415 936

288 392 513 681 917 1,250 1,500 1,890 2,810 5,460

299 421 570 775 1,070 1,550 1,880 2,430 3,570 7,440

46.4 64.4 87.2 121 169 246 307 410 640 1,390

1,160 1,320 1,560 1,900 2,650 4,010 5,070 6,590 9,440 12,600

1,240 1,470 1,810 2,330 3,210 4,720 5,780 7,470 10,500 13,000

24.0 33.0 45.0 59.0 77.0 108 136 181 292 664

34.1 45.2 59.5 78.6 106 151 191 253 389 773

33.0 44.0 60.0 84.0 115 160 194 252 379 848

31.0 44.3 60.0 79.7 106 150 190 261 442 1,090

26.5 38.6 54.7 76.8 108 154 193 257 411 955

87.2 120 159 207 279 397 487 641 1,010 2,290

74.1 107 155 225 312 437 542 703 1,040 2,390

112 152 199 262 343 472 586 789 1,180 2,450

29.0 42.0 60.0 86.0 125 180 224 299 452 1,130

124 180 247 339 473 693 855 1,120 1,720 3,870

140 197 264 348 475 691 865 1,170 1,826 3,970

138 181 242 323 442 632 755 937 1,260 2,340

146 213 284 362 440 558 628 717 806 1,520

2,020 2,500 3,160 4,060 5,370 7,420 9,120 10,900 12,700 14,200

13.3 16.5 20.3 24.7 30.7 39.7 47.6 61.8 100 284

30.1 37.5 46.6 57.5 71.4 92.5 108 142 218 581
62 Selected Streamflow Statistics for Streamgage Locations in and near Pennsylvania

Table 5. Selected mean-flow and flow-duration statistics for streamgage locations in and near Pennsylvania.—Continued

[ft2/s; cubic feet per second; --, statistic not computed; <, less than]

Streamgage

number

Period of 

record used 

in analysis1

Number of 

years used 

in analysis

Mean 

annual 

flow

(ft2/s)

Harmonic 

mean

(ft2/s)

99-percent 

exceedance

(ft2/s)

95-percent 

exceedance

(ft2/s)

90-percent 

exceedance

(ft2/s)

85-percent 

exceedance

(ft2/s)

80-percent 

exceedance

(ft2/s)

01434021 1991–2008 17 2.7 .8 <.1 .1 .3 .4 .5

01434025 1984–2008 24 10.7 3.5 .2 .9 1.6 2.2 2.7

01434498 1992–2008 16 111 45.8 8.5 13.4 19.6 26.3 32.2

01435000 1938–2008 68 194 77.6 15.2 25.2 35.5 45.9 55.7

01436000 21954–2008 54 58.4 15.0 4.1 4.7 5.5 7.0 12.1

01436000 31942–1953 11 263 112 19.1 33.0 45.2 57.4 69.0

01436500 21954–1993 35 89.9 46.2 16.1 19.7 23.7 27.4 31.4

01436500 31938–1953 15 300 122 25.2 37.5 51.0 64.7 78.6

01436690 1993–2008 15 246 127 38.3 57.1 70.7 80.8 90.6

01437500 21954–2008 54 442 224 63.2 88.5 110 130 149

01437500 31938–1953 15 636 251 55.0 78.8 104 129 154

01438500 1940–2008 68 5,830 3,000 827 1,370 1,570 1,740 1,930

01439500 1909–2008 99 238 68.6 9.0 17.0 27.0 38.0 52.0

01440000 1924–2008 84 112 41.9 8.2 13.2 17.7 21.9 27.0

01440200 1965–1995 30 6,210 3,490 1,090 1,530 1,800 2,020 2,200

01440400 1958–2008 50 140 45.5 7.6 12.0 17.0 23.0 30.0

01441000 1912–1938 26 121 59.1 16.5 23.4 28.7 34.3 40.0

01442500 1951–2008 57 573 228 50.0 73.0 95.0 119 145

01443280 1993–2008 15 22.5 12.5 1.9 5.5 7.2 8.3 9.4

01443500 1922–2008 85 201 83.1 17.7 26.9 35.3 43.9 53.3

01443900 1967–2008 41 10.9 2.9 .2 1.0 1.3 1.6 1.8

01445000 1940–2008 28 49.6 17.4 2.5 4.5 6.6 9.3 12.5

01445500 1922–2008 86 160 79.8 19.2 28.9 36.2 44.1 52.4

01446000 1923–2008 43 54.9 17.0 2.4 4.5 6.6 9.3 12.5

01446500 1923–2008 85 7,990 4,010 1,100 1,570 1,980 2,260 2,540

01446600 1962–1978 16 16.8 2.1 .1 .5 .9 1.4 2.0

01447500 1944–2008 64 192 78.0 14.0 23.0 32.0 42.4 53.0

01447680 21970–2008 38 47.4 22.4 4.1 7.6 11.0 14.1 16.9

01447720 31962–1985 23 263 126 30.0 42.0 54.0 67.0 81.0

01447720 21986–2008 22 280 — 32.2 49.1 64.2 78.8 94.2

01447800 1958–2008 50 640 264 51.1 80.3 115 149 182

01448000 1917–1959 42 669 308 73.6 106 139 169 198

01448500 1949–1996 47 4.9 2.0 .4 .7 .9 1.2 1.4

01449000 1983–2008 25 1,340 664 160 231 300 364 435

01449360 1967–2008 41 104 57.6 15.0 22.0 28.0 32.0 38.0

01449800 1968–2008 40 170 75.0 16.1 30.0 36.7 42.6 48.3

01450500 1940–2008 68 153 74.4 18.0 27.0 35.0 42.0 49.0

01451000 21961–2008 47 1,880 916 212 324 413 505 606

01451000 31947–1960 13 1,940 936 225 329 425 521 622

01451500 1946–2008 62 104 72.0 28.0 35.0 41.0 45.0 50.0

01451650 1987–2008 21 138 96.2 39.0 48.2 55.3 61.5 67.8

01451800 1966–2008 42 94.2 23.4 3.5 7.2 11.0 15.0 19.0

01452000 1945–2008 63 118 28.2 3.7 7.7 12.0 17.0 22.0

01452500 1949–2008 59 55.3 36.7 11.0 17.0 21.0 24.0 26.0

01453000 21928–2008 47 2,510 1,410 374 556 699 822 950
Table 5 63

Table 5. Selected mean-flow and flow-duration statistics for streamgage locations in and near Pennsylvania.—Continued

[ft3/s; cubic feet per second; --, statistic not computed; <, less than]

70-percent 

exceedance

(ft3/s)

60-percent 

exceedance

(ft3/s)

50-percent 

exceedance

(ft3/s)

40-percent 

exceedance

(ft3/s)

30-percent 

exceedance

(ft3/s)

20-percent 

exceedance

(ft3/s)

15-percent 

exceedance

(ft3/s)

10-percent 

exceedance

(ft3/s)

5-percent 

exceedance

(ft3/s)

1-percent 

exceedance

(ft3/s)

.8 1.0 1.3 1.7 2.2 3.0 3.8 5.3 9.1 31.7

3.7 4.9 6.2 7.8 10.0 14.0 17.0 21.8 35.4 86.6

43.2 54.8 67.6 83.3 105 140 168 216 333 941

74.6 95.2 120 148 190 255 309 396 583 1,490

15.6 21.6 25.3 35.2 45.6 60.2 76.2 111 219 582

93.9 124 160 209 272 362 432 542 774 1,890

39.5 47.2 55.6 64.3 78.6 103 135 190 289 640

107 139 179 232 301 411 496 636 926 2,210

109 126 143 169 204 278 353 484 749 1,850

190 234 284 347 441 593 731 946 1,340 2,540

214 295 393 521 696 954 1,130 1,380 1,960 4,000

2,340 2,870 3,570 4,570 6,020 8,330 9,910 11,500 13,100 14,400

85.0 120 160 210 271 362 428 526 706 1,270

40.2 56.1 73.4 94.3 123 163 193 245 342 711

2,600 3,120 3,840 4,890 6,400 8,680 10,300 11,900 13,500 14,800

48.0 66.0 87.0 111 143 196 237 301 435 918

52.0 64.9 80.3 101 130 170 196 250 348 735

207 274 356 454 590 805 966 1,220 1,750 3,500

12.0 14.6 17.4 20.5 24.6 31.4 36.5 45.4 62.0 110

76.1 103 137 177 228 298 347 433 594 1,180

2.4 3.2 4.7 7.8 12.3 18.0 21.1 26.3 39.1 83.0

19.8 27.7 37.4 48.5 62.7 80.7 92.2 108 141 228

69.9 89.6 114 146 186 243 280 338 448 769

19.2 27.4 37.6 48.5 62.8 83.6 99.5 124 169 315

3,220 4,080 5,190 6,660 8,650 11,100 12,300 13,500 14,700 15,700

3.3 5.1 7.3 10.6 15.2 22.6 29.0 39.5 64.1 146

78.0 102 130 162 205 270 320 394 551 1,100

22.1 27.8 34.3 42.0 51.9 66.8 79.8 97.7 137 256

110 141 179 220 275 360 436 545 783 1,580

126 157 191 236 293 382 443 554 774 1,710

254 334 426 535 678 914 1,080 1,360 1,980 3,880

269 346 449 576 746 998 1,170 1,400 1,890 3,490

1.9 2.5 3.2 4.0 5.1 6.7 7.8 9.6 14 30

583 748 934 1,150 1,450 1,890 2,280 2,800 3,890 7,570

49.0 61.0 76.0 93.0 113 144 168 204 278 520

64.0 85.8 108 138 177 239 288 370 544 1,080

64.0 80.0 100 125 158 206 246 306 440 900

808 1,050 1,310 1,640 2,050 2,720 3,200 4,000 5,530 10,100

831 1,070 1,360 1,750 2,210 2,840 3,220 3,970 5,380 9,990

60.0 70.0 82.0 95.0 112 136 151 175 224 420

80.6 94.6 110 129 147 179 196 236 311 609

27.0 36.0 49.0 65.0 89.0 127 159 212 325 749

33.0 45.0 62.0 83.0 112 157 194 253 389 937

31.0 36.0 42.0 50.0 60.0 75.0 85.0 99.0 127 238

1,210 1,500 1,830 2,240 2,770 3,540 4,120 5,100 7,020 11,200
64 Selected Streamflow Statistics for Streamgage Locations in and near Pennsylvania

Table 5. Selected mean-flow and flow-duration statistics for streamgage locations in and near Pennsylvania.—Continued

[ft2/s; cubic feet per second; --, statistic not computed; <, less than]

Streamgage

number

Period of 

record used 

in analysis1

Number of 

years used 

in analysis

Mean 

annual 

flow

(ft2/s)

Harmonic 

mean

(ft2/s)

99-percent 

exceedance

(ft2/s)

95-percent 

exceedance

(ft2/s)

90-percent 

exceedance

(ft2/s)

85-percent 

exceedance

(ft2/s)

80-percent 

exceedance

(ft2/s)

01453000 31903–1927 19 2,120 1,100 329 436 529 617 713

01454700 1967–2005 38 2,870 1,720 526 709 862 1,000 1,150

01455160 1971–1983 10 3.8 1.0 <.1 .2 .4 .6 .8

01455500 1929–2008 52 45.1 12.1 1.1 6.0 8.6 10.5 12.1

01457000 1904–2008 90 241 149 43.8 65.2 77.0 88.3 100

01459500 21974–2008 34 169 18.6 2.5 4.2 6.3 9.3 13.7

01459500 31936–1973 37 140 9.3 .9 2.1 3.8 5.4 7.4

01463500 1913–2008 95 11,900 6,270 1,730 2,510 3,040 3,560 4,050

01463620 1973–2008 22 48.6 19.8 2.6 6.9 10.0 13.3 16.0

01464000 1924–2008 84 135 65.9 15.2 25.1 32.7 39.6 45.7

01464500 1941–2008 66 133 75.6 22.1 32.3 39.9 46.3 52.7

01464645 1986–2008 22 33.0 14.4 3.4 4.5 5.6 6.4 8.0

01464720 1991–2008 17 43.2 13.4 3.7 5.3 6.5 7.5 8.4

01465000 1886–1934 16 226 39.6 5.5 10.7 14.8 19.3 24.7

01465500 1935–2008 73 306 80.6 13.8 24.3 34.4 43.8 54.0

01465770 1965–1981 16 7.3 2.7 .2 .9 1.2 1.5 1.8

01465798 1966–2008 42 32.4 8.8 1.7 3.2 4.2 5.2 6.0

01465850 1962–2008 21 94.7 47.0 9.9 15.3 20.3 25.9 32.8

01466500 1954–2008 54 2.1 1.7 .2 .9 1.1 1.2 1.3

01467000 1922–2008 86 170 116 38.0 50.8 61.1 70.8 80.1

01467042 1965–1981 17 66.4 33.3 8.7 12.8 15.8 18.7 21.7

01467048 1966–2008 42 90.6 42.4 13.0 17.0 21.0 24.0 27.0

01467050 1966–1981 15 5.8 1.6 .1 .3 .6 .9 1.1

01467081 1968–2008 39 18.6 8.6 3.0 4.0 4.6 5.3 5.8

01467086 1966–1988 25 26.2 13.8 4.0 6.0 7.2 8.1 9.0

01467087 1983–2008 25 41.4 12.7 3.0 5.2 6.8 8.0 9.2

01467089 1966–1982 16 56.8 20.9 5.5 8.4 10.5 12.3 13.7

01467150 1964–2008 44 32.8 18.4 5.5 8.0 10.1 12.1 13.6

01467500 1944–1969 25 99.3 54.5 17.5 23.5 28.1 32.1 36.0

01468500 1948–2008 42 282 155 46.0 62.0 75.0 89.0 102

01469500 1920–2008 88 86.4 32.4 6.1 9.7 14.0 18.3 22.9

01470500 1948–2008 60 723 344 91.0 127 158 191 223

01470756 1973–1995 22 265 97.2 17.0 30.0 42.0 52.0 64.0

01470779 1975–2008 33 111 74.7 27.0 34.0 42.0 47.0 52.0

01470853 1983–2005 22 6.9 3.0 .3 1.1 1.5 1.8 2.1

01470960 21979–2008 29 281 139 37.8 53.3 65.6 80.0 92.1

01470960 31966–1978 12 276 150 35.4 54.2 68.7 82.7 94.9

01471000 21979–2008 29 332 175 50.1 68.7 86.0 103 118

01471000 31951–1978 27 312 168 50.0 65.0 85.0 98.0 113

01471510 21979–2008 29 1,630 846 241 329 397 458 527

01471510 31915–1930 11 1,490 687 152 219 292 367 422

01471875 1994–2008 14 94.0 49.5 13.4 20.1 25.0 29.2 33.1

01471980 1975–2004 29 131 67.3 21.0 28.0 34.0 39.0 44.0

01472000 21979–2008 29 2,000 1,070 322 432 519 597 685

01472000 31928–1978 50 1,900 967 260 367 457 545 636
Table 5 65

Table 5. Selected mean-flow and flow-duration statistics for streamgage locations in and near Pennsylvania.—Continued

[ft3/s; cubic feet per second; --, statistic not computed; <, less than]

70-percent 

exceedance

(ft3/s)

60-percent 

exceedance

(ft3/s)

50-percent 

exceedance

(ft3/s)

40-percent 

exceedance

(ft3/s)

30-percent 

exceedance

(ft3/s)

20-percent 

exceedance

(ft3/s)

15-percent 

exceedance

(ft3/s)

10-percent 

exceedance

(ft3/s)

5-percent 

exceedance

(ft3/s)

1-percent 

exceedance

(ft3/s)

932 1,190 1,480 1,810 2,300 3,040 3,610 4,480 6,120 10,200

1,420 1,750 2,110 2,500 3,120 4,020 4,720 5,680 7,680 11,500

1.3 2.0 2.7 3.6 4.6 5.9 7.0 8.7 12.3 22.3

15.0 22.7 30.4 35.8 48.8 73.7 89.8 110 146 235

125 153 187 228 277 347 404 467 598 1,040

22.8 34.1 50.4 76.5 116 198 277 416 716 1,960

14.0 24.0 37.0 56.0 87.0 145 204 325 610 1,790

5,160 6,500 8,140 10,200 12,200 14,300 15,300 16,300 17,300 18,100

20.8 26.7 33.8 42.3 53.3 69.4 82.9 103 144 263

58.6 72.8 88.9 110 140 186 224 282 414 775

65.3 78.4 92.8 109 134 169 195 254 388 808

19.6 23.8 26.2 29.0 33.0 37.0 43.1 57.2 90.7 209

10.7 13.8 17.4 22.2 30.5 47.4 62.6 85.7 149 460

39.0 61.7 90.3 122 168 248 319 454 866 2,790

78.9 109 146 192 254 352 441 598 1,050 3,190

2.3 3.0 3.7 4.5 5.3 7.0 8.7 12.5 25.1 86.7

7.8 9.7 12.0 15.0 19.0 28.0 39.0 61.0 125 409

46.3 59.0 72.4 86.5 105 136 157 192 257 476

1.5 1.6 1.9 2.1 2.4 2.9 3.1 3.7 4.6 6.8

98.8 119 141 167 195 242 267 318 404 620

27.8 35.1 42.8 51.1 62.3 79.7 93.4 121 194 569

34.0 42.0 50.0 61.0 75.0 99.0 121 169 285 810

1.4 1.7 2.0 2.4 3.1 4.7 6.5 10.8 23.0 77.5

6.9 8.1 9.5 11.6 14.4 19.8 25.2 36.7 68.4 180

11.0 13.0 16.0 19.0 23.0 29.0 35.2 48.0 81.0 202

11.6 14.1 16.9 20.4 25.7 36.6 49.3 78.7 165 501

16.6 19.7 23.4 29.0 36.6 52.7 71.3 121 239 601

16.4 19.1 21.8 25.1 29.2 36.7 44.3 59.2 99.4 255

45.0 54.7 65.2 82.2 105 140 167 201 272 540

129 160 197 242 303 391 455 557 756 1,500

32.1 41.7 53.6 68.5 88.5 123 146 186 264 584

289 364 458 577 741 998 1,200 1,490 2,100 4,230

88.0 115 150 190 250 348 434 570 856 2,050

61.0 73.0 85.0 99.0 117 142 159 188 254 515

2.9 3.8 4.9 6.2 7.8 10.0 11.8 14.8 20.2 38.3

115 147 185 232 290 381 446 572 850 1,800

119 146 183 230 292 378 443 557 787 1,650

146 183 227 280 347 446 538 681 993 1,990

140 171 212 265 335 430 501 607 833 1,700

686 891 1,130 1,410 1,790 2,330 2,740 3,320 4,780 9,060

547 720 941 1,200 1,560 2,100 2,480 3,230 4,910 9,170

42.1 53.4 65.0 80.0 98.0 124 142 174 252 607

56.0 69.0 85.0 105 129 169 197 246 369 889

879 1,100 1,370 1,720 2,150 2,800 3,240 4,080 5,680 10,500

820 1,030 1,300 1,630 2,070 2,690 3,160 3,850 5,200 9,830
66 Selected Streamflow Statistics for Streamgage Locations in and near Pennsylvania

Table 5. Selected mean-flow and flow-duration statistics for streamgage locations in and near Pennsylvania.—Continued

[ft2/s; cubic feet per second; --, statistic not computed; <, less than]

Streamgage

number

Period of 

record used 

in analysis1

Number of 

years used 

in analysis

Mean 

annual 

flow

(ft2/s)

Harmonic 

mean

(ft2/s)

99-percent 

exceedance

(ft2/s)

95-percent 

exceedance

(ft2/s)

90-percent 

exceedance

(ft2/s)

85-percent 

exceedance

(ft2/s)

80-percent 

exceedance

(ft2/s)

01472157 1969–2008 39 91.1 43.0 11.0 16.0 20.0 24.0 27.0

01472174 1967–1983 16 10.4 5.4 1.6 2.4 2.8 3.2 3.6

01472198 1982–2008 26 62.8 31.2 8.7 13.0 15.0 18.0 20.0

01472199 1982–2008 26 39.5 17.8 4.8 6.7 8.0 9.4 11.0

01472500 1886–1913 13 251 75.0 17.6 28.3 35.7 41.6 46.8

01472620 1984–2008 24 30.2 .9 .1 .5 .9 2.3 6.5

01472810 1991–2008 16 127 68.9 23.0 33.5 40.9 47.1 51.9

01473000 31915–1956 41 389 115 18.2 31.4 42.6 52.9 63.6

01473000 21957–2008 51 429 -- 38.1 52.9 64.2 77.3 91.3

01473120 1967–1994 27 79.2 14.6 2.2 4.6 6.5 8.1 9.8

01473169 1983–2008 25 33.6 23.1 9.1 12.6 14.5 16.3 17.4

01473500 1928–2008 11 2,850 1,170 246 375 503 637 784

01473900 1962–2008 15 62.6 24.1 6.4 8.7 11.3 13.8 16.3

01473950 1966–1981 15 83.2 40.7 11.3 16.1 19.8 23.5 27.0

01474000 1966–2008 42 107 54.5 17.0 24.3 29.3 33.1 37.0

01474500 1932–2008 76 2,800 876 111 296 454 605 734

01475000 1940–2006 39 11.8 9.8 4.2 5.7 6.8 7.4 7.9

01475300 1972–1997 25 9.0 4.7 1.4 2.0 2.5 2.8 3.2

01475510 1964–1990 26 64.3 37.1 12.0 17.0 20.0 23.0 26.0

01475530 1965–1981 20 7.4 4.0 1.5 1.8 2.2 2.5 2.8

01475550 1964–1990 26 30.4 5.4 .3 1.6 3.8 6.1 7.6

01475850 1982–2008 26 23.8 11.8 2.7 4.5 5.9 7.1 8.4

01476480 1987–2008 20 44.1 21.1 4.7 7.6 10.2 12.8 15.1

01476500 1932–1954 22 43.3 24.8 5.4 9.9 13.3 15.8 17.9

01477000 1932–2007 74 91.9 50.6 13.5 22.2 28.0 32.0 36.0

01477120 1966–2008 42 39.5 24.6 7.6 12.4 14.3 16.2 17.9

01477800 1946–2008 62 10.4 1.8 .1 .4 .7 1.0 1.2

01478000 1943–2008 65 29.1 8.6 1.5 3.1 4.3 5.4 6.5

01478500 1952–1979 24 87.7 47.2 12.5 20.2 25.5 30.0 34.6

01479000 1932–2008 67 117 61.7 16.0 26.2 32.6 38.4 43.8

01479820 1988–2008 20 42.3 22.7 5.3 11.0 13.0 15.0 17.0

01480000 1943–2008 65 64.6 36.4 11.6 16.6 19.5 22.4 25.1

01480015 1989–2008 20 77.2 -- 12.9 18.4 22.2 25.3 28.4

01480100 1964–1980 16 10.1 3.0 .3 1.2 1.6 1.8 2.1

01480300 1961–2008 47 26.7 12.6 3.2 5.6 6.8 7.8 8.8

01480500 31944–1993 31 64.0 33.4 9.4 13.4 16.6 19.8 12.0

01480500 21994–2008 14 62.9 27.9 6.1 11.1 14.0 16.6 19.3

01480617 1970–2008 38 86.0 47.8 16.1 21.3 25.7 29.5 32.8

01480675 1967–2008 41 12.8 4.5 .7 1.5 2.1 2.6 3.2

01480685 1974–2008 34 30.4 10.5 .6 4.0 6.9 8.4 9.7

01480700 21974–2008 34 93.6 50.6 15.5 21.8 26.0 29.9 33.6

01480800 1959–1968 9 86.7 44.1 13.7 19.2 23.6 27.2 30.8

01480870 1972–2008 36 151 83.0 28.4 37.0 42.6 47.6 53.5

01481000 31912–1973 52 385 225 69.0 100 118 138 158

01481000 21974–2008 35 447 -- 73.8 106 126 144 163
Table 5 67

Table 5. Selected mean-flow and flow-duration statistics for streamgage locations in and near Pennsylvania.—Continued

[ft3/s; cubic feet per second; --, statistic not computed; <, less than]

70-percent 

exceedance

(ft3/s)

60-percent 

exceedance

(ft3/s)

50-percent 

exceedance

(ft3/s)

40-percent 

exceedance

(ft3/s)

30-percent 

exceedance

(ft3/s)

20-percent 

exceedance

(ft3/s)

15-percent 

exceedance

(ft3/s)

10-percent 

exceedance

(ft3/s)

5-percent 

exceedance

(ft3/s)

1-percent 

exceedance

(ft3/s)

36.0 46.0 58.0 72.0 90.0 116 136 173 256 625

4.4 5.4 6.6 8.0 9.5 12.0 13.0 17.0 26.0 93.6

25.0 32.0 40.0 50.0 61.1 79.0 92.0 115 171 442

14.0 19.0 25.0 31.0 38.0 49.0 58.0 74.0 111 281

59.6 78.2 105 140 188 269 343 482 895 2,860

13.7 17.3 22.6 32.5 44.2 55.0 58.6 62.2 65.8 108

59.1 66.3 73.4 80.6 89.7 121 149 212 385 1,180

88.4 124 169 230 315 450 577 803 1,470 4,070

121 149 192 250 331 477 611 876 1,580 4,160

14.0 20.0 28.0 40.0 54.0 79.0 101 144 293 1,060

19.7 21.9 25.1 28.5 33.8 40.5 46.3 55.5 77.4 197

1,120 1,490 1,860 2,340 2,980 3,960 4,780 6,040 8,890 12,600

21.1 26.7 33.2 40.9 52.5 70.5 84.9 112 188 609

33.8 41.2 49.7 60.2 73.6 94.1 111 146 249 772

44.6 52.9 62.4 74.9 90.6 117 142 189 328 971

1,020 1,350 1,750 2,270 2,980 4,010 4,840 6,090 8,850 12,300

8.8 9.8 10.7 11.7 13.2 14.9 15.7 18.5 22.0 41.4

4.0 4.9 5.9 7.2 8.7 11.0 12.8 15.6 23.6 68.8

31.0 37.0 45.0 52.0 61.0 75.0 86.0 107 172 443

3.2 3.9 4.4 5.1 5.8 7.4 8.9 12.0 23.0 65.1

9.9 12.5 15.2 18.4 21.7 30.2 37.4 58.5 122 322

11.0 13.0 15.0 18.0 22.0 27.0 32.0 40.0 62.8 182

20.0 24.9 30.3 36.5 44.4 55.6 64.0 80.2 121 308

22.2 26.6 31.7 37.1 44.9 56.0 63.9 79.0 109 268

44.1 52.5 62.1 74.2 88.4 109 131 160 250 643

21.2 25.0 29.3 34.2 40.0 48.2 55.7 66.0 99.0 254

1.7 2.3 3.0 3.9 5.3 8.1 11.4 18.9 41.9 150

8.5 11.0 13.6 16.4 20.5 26.8 34.1 48.7 101 370

43.0 51.2 61.2 72.9 86.2 108 128 151 221 616

54.6 65.3 78.8 94.1 113 142 164 198 305 890

20.0 24.0 29.0 34.0 40.0 49.0 54.0 64.0 95.7 324

30.9 36.9 44.7 53.5 63.5 79.7 90.7 109 164 447

35.5 43.2 51.6 62.0 75.2 92.4 106 133 195 541

2.9 3.6 4.4 5.3 6.6 9.1 12.2 18.3 37.8 122

11.0 13.0 15.0 18.0 22.0 27.0 32.0 42.0 77.0 257

29.6 13.7 44.0 51.8 62.0 77.7 88.1 113 181 455

25.2 31.8 38.8 47.7 59.4 76.5 88.1 116 186 533

39.8 48.2 58.2 69.6 84.0 104 121 149 236 590

4.4 6.0 7.9 9.9 12.0 16.0 19.0 25.0 42.0 97.0

11.8 14.1 17.1 22.2 32.3 50.4 58.2 66.1 86.3 203

41.5 50.4 62.1 77.8 98.3 128 146 185 266 581

38.2 46.6 56.3 67.6 84.0 108 132 165 241 617

67.1 83.0 102 127 156 195 234 291 431 967

193 231 274 325 393 498 575 700 985 2,240

203 253 311 382 467 586 690 844 1,200 2,730
68 Selected Streamflow Statistics for Streamgage Locations in and near Pennsylvania

Table 5. Selected mean-flow and flow-duration statistics for streamgage locations in and near Pennsylvania.—Continued

[ft2/s; cubic feet per second; --, statistic not computed; <, less than]

Streamgage

number

Period of 

record used 

in analysis1

Number of 

years used 

in analysis

Mean 

annual 

flow

(ft2/s)

Harmonic 

mean

(ft2/s)

99-percent 

exceedance

(ft2/s)

95-percent 

exceedance

(ft2/s)

90-percent 

exceedance

(ft2/s)

85-percent 

exceedance

(ft2/s)

80-percent 

exceedance

(ft2/s)

01481500 21974–2008 34 504 278 80.3 117 140 162 184

01481500 31947–1973 26 460 252 72.7 102 126 148 169

01482500 1940–2008 50 19.8 7.0 .8 2.9 4.2 5.3 6.5

01483200 1957–2008 51 4.9 1.1 .1 .3 .5 .8 1.1

01483700 1958–2008 50 38.2 7.9 .6 2.2 3.7 5.3 7.0

01484000 1932–2008 31 17.8 7.0 1.5 2.4 3.1 3.6 4.2

01484100 1959–2008 49 3.6 1.6 .1 .4 .7 1.1 1.3

01484270 1972–2005 12 12.9 10.7 4.3 5.8 6.9 7.6 8.3

01493000 1948–2008 58 25.5 13.1 4.3 6.1 7.4 8.4 9.3

01493500 1952–2008 55 11.0 5.8 1.8 2.7 3.3 3.8 4.2

01495000 1932–2008 76 69.7 37.7 10.0 16.6 20.6 24.1 27.4

01496000 1949–1984 35 36.1 12.9 3.1 4.8 6.4 7.7 9.0

01496200 1968–1992 24 12.3 5.7 1.5 2.3 3.0 3.6 4.1

01496500 1930–1995 60 171 35.2 4.0 8.2 14.2 21.0 29.3

01500000 21950–2008 58 178 34.4 4.3 9.3 13.1 17.6 24.7

01500500 1939–2008 62 1,620 499 90.0 142 195 255 321

01502000 1939–1995 56 99.4 25.7 4.1 7.2 10.4 13.8 17.4

01502500 1930–2008 69 861 259 51.1 75.7 101 129 161

01503000 1913–2008 95 3,630 1,100 202 312 431 562 711

01505000 1939–2008 60 407 131 24.9 40.3 53.2 65.7 80.8

01508803 1967–1986 15 126 62.4 15.9 23.5 30.1 35.5 41.1

01509000 1939–2008 68 505 174 34.9 54.9 71.4 87.0 108

01510000 1939–2008 64 273 64.6 10.1 17.4 24.7 33.0 43.3

01512500 1913–2008 95 2,460 769 150 228 309 391 481

01515000 1937–2008 66 7,860 2,350 423 654 885 1,170 1,500

01516350 1977–2008 31 218 56.3 11.2 15.7 21.3 27.7 35.5

01516500 1955–2008 53 12.7 1.1 .1 .3 .5 .7 1.0

01518000 21978–2008 30 480 106 26.1 32.7 39.2 47.3 58.2

01518000 31939–1977 38 331 61.2 9.8 17.1 23.8 31.0 39.1

01518700 21980–2008 28 540 128 28.9 41.2 50.5 59.2 69.3

01518862 1984–2008 24 110 14.4 1.6 3.3 5.3 7.3 9.9

01520000 21980–2008 28 326 49.5 9.9 14.4 18.1 22.0 26.5

01520000 31952–1978 26 294 27.0 3.0 6.2 10.0 15.0 21.0

01520500 21980–1995 15 833 189 40.1 63.5 77.1 90.4 107

01520500 31930–1979 49 802 129 18.0 34.1 48.4 66.9 85.0

01521500 21940–2008 68 36.3 5.0 .4 1.3 1.8 2.4 3.0

01523500 21949–2008 59 67.7 19.0 4.5 6.7 8.4 10.2 12.0

01524500 1943–2008 65 162 51.3 13.6 18.6 23.1 26.9 31.1

01526500 21979–2008 29 1,480 368 83.8 114 139 170 206

01526500 31919–1978 59 1,380 255 44.1 70.8 98.3 127 159

01527000 1951–1981 30 56.5 18.5 4.0 6.1 7.9 9.5 11.9

01527500 1939–2008 15 191 64.3 13.7 21.3 27.4 33.7 40.3

01528000 1937–1995 58 76.1 7.5 1.0 1.8 2.6 3.7 5.1

01529000 1937–1982 45 42.0 5.8 1.0 1.8 2.4 3.0 3.7

01529500 1919–2008 89 466 127 27.0 39.0 51.0 64.0 76.0
Table 5 69

Table 5. Selected mean-flow and flow-duration statistics for streamgage locations in and near Pennsylvania.—Continued

[ft3/s; cubic feet per second; --, statistic not computed; <, less than]

70-percent 

exceedance

(ft3/s)

60-percent 

exceedance

(ft3/s)

50-percent 

exceedance

(ft3/s)

40-percent 

exceedance

(ft3/s)

30-percent 

exceedance

(ft3/s)

20-percent 

exceedance

(ft3/s)

15-percent 

exceedance

(ft3/s)

10-percent 

exceedance

(ft3/s)

5-percent 

exceedance

(ft3/s)

1-percent 

exceedance

(ft3/s)

235 294 358 434 533 672 770 949 1,320 3,080

212 260 323 402 498 623 733 884 1,200 2,780

8.3 10.2 12.9 15.4 18.8 23.2 27.3 36.2 59.5 161

1.6 2.2 2.9 3.8 4.9 6.6 8.0 10.4 15.8 38.4

10.6 15.3 21.5 28.9 38.6 54.2 65.1 85.3 134 296

5.7 7.8 10.4 13.8 18.0 23.7 28.1 36.2 55.3 142

1.8 2.3 2.8 3.4 4.2 5.1 5.9 6.8 8.9 20.8

9.5 10.8 12.1 13.7 15.3 17.9 19.5 21.1 24.8 35.5

11.7 14.3 17.4 21.2 26.4 34.4 39.8 48.7 69.9 160

5.1 5.9 6.6 7.6 8.8 11.2 13.5 17.3 29.7 95.2

33.8 40.4 47.8 56.7 66.5 83.4 96.6 118 180 506

12.0 14.9 18.4 22.3 26.8 34.9 41.9 59.5 125 421

5.0 6.2 7.4 8.8 10.7 13.5 15.4 20.2 35.4 118

49.1 73.6 104 144 200 278 335 419 564 1,030

40.0 64.2 90.3 128 181 256 320 426 658 1,520

480 698 967 1,310 1,800 2,490 3,050 3,860 5,490 9,730

26.2 38.0 53.4 73.2 100 143 175 226 333 779

244 348 483 658 908 1,290 1,590 2,040 2,970 5,810

1,070 1,550 2,110 2,850 3,910 5,500 6,760 8,640 11,300 13,500

119 172 235 318 433 604 748 971 1,360 2,650

53.5 68.7 85.2 108 138 182 216 266 372 687

160 222 294 390 524 732 900 1,140 1,710 3,400

70.2 104 144 196 267 386 476 626 986 2,190

709 1,010 1,360 1,850 2,540 3,660 4,570 6,100 8,900 12,200

2,320 3,250 4,550 6,260 8,520 11,200 12,600 13,900 15,300 16,400

54.2 75.5 105 142 196 288 359 479 756 1,890

1.8 2.9 4.6 6.9 10.0 16.0 21.0 28.0 47.0 123

91.6 141 200 281 412 623 794 1,120 1,980 4,760

59.5 88.9 132 195 296 450 578 788 1,280 2,950

106 159 224 315 455 691 904 1,270 2,270 5,360

18.0 29.0 47.0 69.8 100 153 194 257 402 1,020

43.8 74.4 116 176 266 428 564 795 1,390 3,330

36.0 60.0 95.0 150 230 370 490 694 1,200 3,000

164 236 336 477 685 1,050 1,400 2,010 3,530 8,170

133 199 297 441 672 1,060 1,390 1,930 3,150 7,560

5.0 8.1 13.0 19.0 27.3 42.3 55.4 80.0 149 464

15.9 21.3 28.5 38.0 52.8 79.1 103 150 276 682

41.0 54.7 73.3 99.8 139 201 259 359 622 1,550

323 464 654 917 1,310 1,980 2,580 3,580 6,040 12,200

240 345 512 753 1,140 1,820 2,390 3,310 5,440 11,500

16.5 23.0 31.8 44.3 61.2 85.4 105 138 191 356

55.3 76.3 103 140 191 268 335 445 677 1,390

9.3 17.9 28.8 43.4 62.9 96.3 129 185 322 785

5.2 7.6 12.1 18.0 26.8 44.8 62.7 95.3 185 519

110 155 218 302 424 640 820 1,120 1,700 3,610
70 Selected Streamflow Statistics for Streamgage Locations in and near Pennsylvania

Table 5. Selected mean-flow and flow-duration statistics for streamgage locations in and near Pennsylvania.—Continued

[ft2/s; cubic feet per second; --, statistic not computed; <, less than]

Streamgage

number

Period of 

record used 

in analysis1

Number of 

years used 

in analysis

Mean 

annual 

flow

(ft2/s)

Harmonic 

mean

(ft2/s)

99-percent 

exceedance

(ft2/s)

95-percent 

exceedance

(ft2/s)

90-percent 

exceedance

(ft2/s)

85-percent 

exceedance

(ft2/s)

80-percent 

exceedance

(ft2/s)

01529950 21979–2008 29 2,160 584 128 178 226 274 335

01530500 1939–2008 70 87.2 27.2 6.7 9.8 13.0 15.0 17.0

01531000 21980–2008 28 2,780 745 158 225 289 353 432

01531000 31904–1979 75 2,570 545 104 158 210 271 335

01531500 21980–2008 28 11,100 3,540 710 1,000 1,320 1,720 2,230

01531500 31914–1979 65 10,700 3,110 574 923 1,250 1,580 1,920

01532000 1914–2008 94 291 36.3 3.6 8.9 14.0 21.0 30.0

01532850 1966–1979 13 10.2 1.7 .2 .4 .6 .9 1.2

01533400 21980–2008 28 12,500 3,900 790 1,100 1,480 1,900 2,440

01533500 1941–1958 17 47.2 6.3 .5 1.5 2.3 3.2 4.6

01533950 1961–1978 17 17.3 3.1 .3 .9 1.4 1.9 2.3

01534000 1914–2008 94 555 131 21.0 35.0 51.0 66.0 85.0

01534300 1959–2008 49 74.9 17.9 2.3 4.8 7.3 10.6 14.7

01534500 21960–2008 48 207 83.7 19.9 29.0 35.9 43.9 52.9

01534500 31940–1959 19 206 92.1 24.6 33.9 42.1 49.3 56.7

01536000 21960–2008 48 457 158 34.0 49.9 65.8 82.0 99.8

01536000 31939–1959 20 566 283 95.8 120 139 158 176

01536500 21980–2008 28 14,400 4,840 997 1,390 1,830 2,370 3,090

01536500 31900–1979 79 13,500 4,170 837 1,250 1,670 2,100 2,590

01537000 1942–1993 51 41.1 12.9 2.4 4.1 5.6 7.1 8.6

01537500 1940–1990 50 18.7 3.3 .2 1.2 2.3 3.4 4.4

01538000 1920–2008 88 65.9 22.8 4.5 6.7 9.1 12.0 14.0

01539000 1939–2008 69 485 134 19.0 35.0 54.0 76.0 100

01539500 1941–1958 17 85.3 7.0 .4 1.6 3.8 6.5 9.6

01540200 1964–1981 17 2.2 .6 <.1 .1 .2 .4 .5

01540500 21980–2008 28 16,200 5,890 1,290 1,770 2,300 2,920 3,700

01540500 31909–1979 74 15,300 5,080 1,020 1,580 2,080 2,600 3,190

01541000 1914–2008 94 557 159 29.0 48.0 63.0 80.0 99.0

01541200 21968–2008 40 687 245 50.4 74.8 100 128 156

01541200 31956–1965 9 594 149 26.6 41.3 56.2 70.2 86.0

01541303 1979–2008 29 875 311 67.8 90.3 118 155 199

01541308 1968–1979 11 12.9 5.4 1.4 2.0 2.5 3.0 3.6

01541500 21961–2008 47 593 210 44.9 65.3 83.3 104 129

01541500 31914–1960 46 576 139 23.0 41.0 54.0 68.0 86.0

01542000 1941–1993 52 111 42.8 10.2 14.2 18.1 21.9 26.6

01542500 21966–2008 34 2,560 -- 241 345 448 562 684

01542500 31940–1965 20 2,450 858 147 200 250 310 400

01542810 1965–2008 43 8.8 1.1 .1 .2 .4 .6 .9

01543000 1914–2008 94 456 65.0 6.8 17.0 26.0 38.0 52.0

01543500 1939–2008 69 1,150 193 22.0 44.0 71.0 105 152

01544000 21956–2008 52 410 69.4 8.2 17.9 28.1 40.2 56.1

01545000 21963–2008 45 379 78.2 10.0 19.0 30.6 44.1 59.7

01545500 21962–2008 46 5,040 1,570 270 423 585 778 1,040

01545500 31908–1961 53 4,950 1,080 160 279 408 546 702

01545600 1965–2008 43 74.1 16.6 2.0 3.8 6.2 9.1 13.0
Table 5 71

Table 5. Selected mean-flow and flow-duration statistics for streamgage locations in and near Pennsylvania.—Continued

[ft3/s; cubic feet per second; --, statistic not computed; <, less than]

70-percent 

exceedance

(ft3/s)

60-percent 

exceedance

(ft3/s)

50-percent 

exceedance

(ft3/s)

40-percent 

exceedance

(ft3/s)

30-percent 

exceedance

(ft3/s)

20-percent 

exceedance

(ft3/s)

15-percent 

exceedance

(ft3/s)

10-percent 

exceedance

(ft3/s)

5-percent 

exceedance

(ft3/s)

1-percent 

exceedance

(ft3/s)

510 725 1,010 1,390 1,940 2,970 3,840 5,250 8,560 13,000

23.0 29.0 39.0 51.0 71.0 106 135 188 307 792

671 959 1,330 1,840 2,520 3,800 4,840 6,490 10,300 14,300

495 706 1,010 1,470 2,190 3,410 4,420 6,230 9,870 13,700

3,410 4,760 6,430 8,670 11,200 13,700 15,000 16,300 17,500 18,500

2,820 3,940 5,460 7,560 10,600 13,700 15,200 16,700 18,300 19,500

52.0 80.0 120 170 246 377 482 662 1,080 2,670

2.0 3.0 4.2 6.0 8.0 12.0 15.0 21.0 34.0 107

3,790 5,280 7,140 9,520 12,000 14,500 15,700 17,000 18,200 19,200

8.3 13.9 20.5 30.1 44.9 66.0 83.0 109 174 376

3.5 5.1 7.1 9.6 14.0 21.0 27.0 37.0 63.0 175

132 191 270 370 520 767 957 1,270 1,930 4,330

22.9 32.0 42.0 55.1 74.3 104 132 177 264 582

74.2 97.9 128 164 214 294 359 470 705 1,290

73.3 94.9 124 162 215 292 347 441 653 1,390

140 190 256 344 461 674 838 1,090 1,580 2,940

217 268 344 453 594 804 985 1,230 1,730 3,260

4,630 6,400 8,530 11,100 13,800 16,400 17,700 19,000 20,300 21,300

3,770 5,200 7,050 9,750 12,700 15,600 17,100 18,600 20,100 21,300

12.3 15.8 20.9 27.9 39.2 58.1 72.4 95.5 146 309

6.3 8.3 11.3 15.0 20.0 27.2 33.1 40.6 57.0 126

22.0 31.0 41.0 53.0 70.0 94.0 112 140 200 422

150 208 278 369 498 692 846 1,080 1,570 3,210

16.7 25.5 37.6 55.5 80.4 122 150 204 324 787

.7 .9 1.3 1.8 2.3 3.2 3.9 5.1 7.4 15.3

5,460 7,380 9,840 12,300 14,900 17,400 18,600 19,900 21,100 22,100

4,530 6,160 8,410 11,100 13,700 16,400 17,700 19,000 20,400 21,400

146 207 290 400 551 795 987 1,290 1,910 4,010

225 304 403 535 718 1,010 1,230 1,630 2,440 4,260

137 194 271 398 595 911 1,140 1,510 2,160 4,430

289 397 528 707 951 1,310 1,620 2,080 3,130 5,180

4.8 6.2 7.7 9.8 13.0 17.0 21.0 26.0 40.0 89.0

186 255 340 447 607 859 1,060 1,360 2,000 4,010

130 190 278 398 575 850 1,060 1,380 2,010 4,350

37.6 51.0 67.9 90.5 122 163 194 246 346 712

955 1,260 1,650 2,130 2,810 3,840 4,600 5,760 8,040 11,800

620 916 1,260 1,800 2,590 3,740 4,560 5,770 8,100 15,000

1.5 2.4 3.6 5.2 7.5 11.0 15.0 21.0 35.0 84.0

92.0 142 210 294 430 652 815 1,100 1,680 3,660

262 404 580 808 1,160 1,720 2,140 2,780 4,100 8,200

94.9 141 201 283 401 590 748 1,010 1,570 3,290

95.0 139 193 263 361 538 674 908 1,360 3,180

1,620 2,290 3,080 4,100 5,480 7,500 9,200 11,000 12,800 14,200

1,160 1,790 2,560 3,620 5,170 7,500 9,380 11,300 13,300 14,900

21.0 31.0 42.0 56.0 77.0 109 133 170 248 489
72 Selected Streamflow Statistics for Streamgage Locations in and near Pennsylvania

Table 5. Selected mean-flow and flow-duration statistics for streamgage locations in and near Pennsylvania.—Continued

[ft2/s; cubic feet per second; --, statistic not computed; <, less than]

Streamgage

number

Period of 

record used 

in analysis1

Number of 

years used 

in analysis

Mean 

annual 

flow

(ft2/s)

Harmonic 

mean

(ft2/s)

99-percent 

exceedance

(ft2/s)

95-percent 

exceedance

(ft2/s)

90-percent 

exceedance

(ft2/s)

85-percent 

exceedance

(ft2/s)

80-percent 

exceedance

(ft2/s)

01546000 1911–1934 18 210 27.5 2.3 5.5 12.5 18.6 25.0

01546400 1985–2008 23 69.1 42.3 16.0 19.0 22.0 25.0 28.0

01546500 1941–2008 67 95.6 68.3 25.0 35.0 41.0 45.0 48.0

01547100 1968–2008 40 232 191 104 120 129 137 143

01547200 1956–2008 52 411 242 92.6 121 135 146 157

01547500 21970–2008 38 507 288 114 138 159 174 188

01547500 31955–1969 14 389 220 91.6 110 121 133 144

01547700 1956–2008 52 60.2 8.1 .8 2.1 3.4 4.8 6.6

01547800 1970–1981 11 23.6 9.1 2.0 3.0 3.8 4.8 5.9

01547950 1969–2008 39 266 88.6 15.0 23.0 34.0 47.0 60.0

01548005 21970–2000 26 907 473 154 193 232 268 301

01548005 31911–1969 58 769 339 117 142 160 181 201

01548500 1919–2008 89 851 184 30.0 47.0 66.0 89.0 118

01549000 1909–1920 11 1,140 264 42.9 67.4 99.2 134 176

01549500 1941–2008 67 58.8 9.8 1.1 2.4 3.7 5.5 7.7

01549700 1958–2008 50 1,410 309 43.0 75.0 112 156 205

01550000 1914–2008 94 290 66.1 9.5 17.0 25.0 35.0 46.0

01551500 21962–2008 46 9,240 3,230 624 913 1,250 1,660 2,100

01551500 31900–1961 61 8,920 2,520 485 724 960 1,230 1,570

01552000 1926–2008 81 767 184 26.0 44.6 70.0 103 137

01552500 1941–2008 67 48.6 11.1 1.5 2.7 4.4 6.4 8.8

01553130 1968–1981 13 9.1 4.0 1.1 1.6 2.0 2.2 2.5

01553500 31940–1966 27 10,200 -- 647 909 1,170 1,440 1,790

01553500 21967–2008 27 11,300 -- 903 1,350 1,810 2,350 2,900

01553700 1980–2008 28 72.9 32.0 12.1 14.8 17.1 18.8 20.5

01554000 21980–2008 28 27,800 10,600 2,240 3,120 4,130 5,330 6,780

01554000 31938–1979 41 26,800 8,980 1,800 2,700 3,620 4,690 5,840

01554500 1940–2001 54 85.2 61.2 22.1 29.7 34.8 39.4 43.0

01555000 1930–2008 78 447 166 40.0 55.0 68.0 83.0 99.0

01555500 1930–2008 78 230 56.6 7.6 15.0 23.0 32.0 41.0

01556000 1917–2008 91 400 159 48.0 63.0 73.0 81.0 93.0

01557500 1945–2008 63 76.0 20.5 3.6 5.2 7.0 9.0 12.0

01558000 1939–2008 69 379 178 64.0 74.0 83.0 92.0 103

01559000 1942–2008 66 1,110 540 173 228 266 297 330

01559500 1930–1958 28 148 44.5 12.1 15.7 18.7 21.7 25.8

01559700 1962–1978 16 5.5 .7 .1 .2 .3 .4 .4

01560000 1940–2008 68 235 53.5 11.0 16.0 20.0 25.0 31.0

01561000 1930–1958 28 45.3 6.1 .4 1.5 2.6 3.6 4.7

01562000 1912–2008 96 927 281 68.0 98.0 118 140 163

01562500 1930–1957 27 95.0 13.8 1.6 3.3 4.9 6.6 8.9

01563200 21973–2008 35 1,210 375 111 171 207 223 239

01563200 31947–1972 25 1,080 194 18.1 68.0 115 142 176

01563500 21973–2008 35 2,750 1,240 428 503 562 630 728

01563500 31938–1972 34 2,390 876 227 327 395 454 529

01564500 1939–2008 69 246 37.9 5.4 9.8 14.0 19.0 24.0
Table 5 73

Table 5. Selected mean-flow and flow-duration statistics for streamgage locations in and near Pennsylvania.—Continued

[ft3/s; cubic feet per second; --, statistic not computed; <, less than]

70-percent 

exceedance

(ft3/s)

60-percent 

exceedance

(ft3/s)

50-percent 

exceedance

(ft3/s)

40-percent 

exceedance

(ft3/s)

30-percent 

exceedance

(ft3/s)

20-percent 

exceedance

(ft3/s)

15-percent 

exceedance

(ft3/s)

10-percent 

exceedance

(ft3/s)

5-percent 

exceedance

(ft3/s)

1-percent 

exceedance

(ft3/s)

36.3 51.6 80.6 113 162 245 326 468 786 2,280

34.0 41.0 50.0 60.0 73.0 92.0 108 132 178 375

55.0 63.0 74.0 87.0 104 128 145 169 216 392

155 172 192 215 248 290 322 370 471 793

186 221 265 325 410 541 638 799 1,170 2,310

226 269 330 410 522 701 847 1,080 1,610 2,710

169 194 238 296 389 550 669 837 1,190 2,260

11.0 18.0 26.0 38.0 56.0 86.0 107 142 223 500

8.3 11.7 15.4 19.7 24.8 32.9 38.8 49.8 77.0 162

93.0 125 164 218 292 391 468 590 833 1,550

372 455 561 705 921 1,260 1,550 1,990 3,160 5,010

252 324 430 575 784 1,100 1,350 1,700 2,440 4,980

190 283 406 578 825 1,240 1,570 2,050 3,050 6,380

255 395 559 751 1,080 1,610 2,010 2,590 3,960 10,400

13.0 19.0 28.0 39.0 54.0 81.0 101 133 205 495

342 500 700 973 1,360 2,010 2,530 3,350 5,140 10,700

71.0 101 144 203 284 410 509 665 986 2,180

3,080 4,250 5,580 7,330 9,810 12,400 13,700 15,000 16,300 17,400

2,350 3,400 4,800 6,680 9,380 12,500 14,100 15,600 17,200 18,500

210 300 411 555 750 1,070 1,300 1,680 2,530 5,670

13.0 19.0 26.0 35.0 47.0 66.0 80.0 103 156 375

3.5 4.8 6.4 8.0 9.8 13.0 15.0 18.0 25.0 56.2

2,650 3,720 5,270 7,480 10,400 13,400 14,900 16,400 17,900 19,100

4,130 5,580 7,230 9,300 11,500 13,700 14,800 15,900 17,000 17,800

24.6 29.8 36.4 45.3 58.5 82.3 105 147 254 670

9,960 13,200 16,400 19,600 22,800 26,100 27,700 29,300 30,900 32,200

8,290 11,000 13,600 16,300 19,000 21,675 23,000 24,400 25,700 26,800

50.3 59.7 69.9 81.7 96.4 117 134 152 195 331

142 200 267 350 470 645 776 981 1,390 2,790

63.0 90.0 121 162 220 308 382 497 760 1,710

118 157 210 284 390 556 682 888 1,320 2,780

20.0 30.0 41.0 54.0 74.0 105 130 169 252 538

130 172 224 296 393 540 648 815 1,170 2,260

414 520 668 866 1,150 1,580 1,880 2,380 3,410 6,500

36.3 51.5 74.8 104 149 217 265 342 514 1,170

.7 1.2 2.0 3.1 4.8 7.3 9.9 14.0 22.5 48.0

46.0 68.0 100 142 209 320 413 572 900 1,970

8.0 13.4 21.0 31.7 46.9 68.6 84.8 109 162 340

220 304 428 599 860 1,290 1,640 2,200 3,330 7,200

16.0 26.8 43.4 64.1 93.1 142 180 239 349 753

282 472 561 750 1,090 1,700 2,100 2,900 4,740 9,760

248 337 478 711 1,090 1,660 1,980 2,600 3,940 8,710

962 1,240 1,600 2,080 2,780 3,850 4,700 6,180 9,370 12,900

700 928 1,250 1,720 2,500 3,590 4,300 5,550 7,920 12,100

40.0 64.0 100 147 216 330 428 593 953 2,160
74 Selected Streamflow Statistics for Streamgage Locations in and near Pennsylvania

Table 5. Selected mean-flow and flow-duration statistics for streamgage locations in and near Pennsylvania.—Continued

[ft2/s; cubic feet per second; --, statistic not computed; <, less than]

Streamgage

number

Period of 

record used 

in analysis1

Number of 

years used 

in analysis

Mean 

annual 

flow

(ft2/s)

Harmonic 

mean

(ft2/s)

99-percent 

exceedance

(ft2/s)

95-percent 

exceedance

(ft2/s)

90-percent 

exceedance

(ft2/s)

85-percent 

exceedance

(ft2/s)

80-percent 

exceedance

(ft2/s)

01565000 1940–2008 39 215 79.4 19.0 26.0 31.0 38.0 44.0

01565700 1964–1981 17 7.5 2.4 .4 .7 1.1 1.3 1.6

01566000 1912–2008 53 262 58.8 8.6 18.0 25.0 32.0 39.0

01566500 1931–1958 27 76.8 15.9 2.5 4.2 5.7 7.3 8.9

01567000 21973–2008 35 4,510 1,910 572 711 848 986 1,130

01567000 31900–1972 72 4,230 1,560 375 537 678 804 957

01567500 1954–2008 54 19.6 7.7 2.4 3.1 3.6 4.1 4.5

01568000 1930–2008 78 293 80.4 17.0 25.0 31.0 38.0 47.0

01568500 21941–1996 55 20.6 6.8 2.6 3.6 4.1 4.4 4.7

01569000 1938–1974 15 60.4 22.4 4.4 7.4 9.3 12.0 14.0

01569800 1977–2008 31 44.6 36.6 16.5 21.9 24.0 26.0 28.0

01570000 31912–1969 36 557 249 63.8 95.9 116 137 159

01570000 21970–2008 39 632 -- 71.5 99.0 123 145 169

01570500 21974–2008 35 36,070 -- 3,520 4,840 6,260 7,920 9,660

01570500 31901–1972 72 33,400 -- 2,590 3,840 5,070 6,380 7,740

01571000 1940–1995 18 14.9 2.3 .1 .6 1.1 1.5 1.9

01571500 1910–2008 64 297 202 90.0 104 117 128 138

01572000 1920–1984 15 57.6 13.6 2.0 3.9 5.6 7.4 9.2

01572025 1989–2008 18 221 86.2 17.9 25.3 34.4 45.2 56.2

01572190 1989–2008 18 319 112 23.6 33.0 44.5 57.5 70.9

01573000 1919–2008 89 580 163 26.0 46.2 66.4 87.0 110

01573086 1964–1981 17 8.4 3.6 .2 1.1 2.0 2.8 3.5

01573160 1976–1994 18 107 76.8 30.0 40.6 48.5 53.4 57.5

01573500 1938–1958 20 23.4 7.9 1.7 2.6 3.3 4.1 4.9

01573560 1976–2008 31 810 305 68.9 97.8 132 164 195

01574000 1929–2008 79 611 111 13.9 31.3 47.6 63.1 79.8

01574500 21967–2008 41 85.8 56.4 21.0 29.7 35.2 39.3 41.9

01574500 31930–1966 35 72.9 29.5 8.2 11.0 14.0 16.0 18.0

01575000 31928–1971 43 105 10.6 .5 4.2 10.8 17.3 23.0

01575000 21972–1995 23 128 19.9 1.4 6.2 11.6 16.2 21.2

01575500 21947–1996 49 222 87.9 17.7 27.7 42.6 53.9 63.4

01576000 21974–2008 35 39,900 -- 3,750 5,400 6,980 8,700 10,600

01576000 31933–1972 40 35,600 -- 2,740 4,120 5,440 6,820 8,300

01576085 1983–1995 12 7.2 2.6 .1 .6 1.1 1.3 1.6

01576500 1929–2008 78 408 182 37.9 63.2 84.9 105 124

01576754 1985–2008 23 675 363 94.0 141 180 215 249

01578310 1968–2008 40 41,300 12,100 960 4,310 5,820 8,190 11,200

01578400 1963–1981 18 8.0 4.7 1.6 2.1 2.6 3.0 3.4

01580000 1927–2008 81 126 79.4 25.6 36.0 44.5 51.7 57.4

01581500 1945–2008 30 11.9 2.9 .3 1.1 1.6 2.0 2.4

01581700 1968–2008 40 52.4 28.1 7.5 12.4 15.7 18.5 21.2

01582000 1945–2008 63 68.8 44.7 14.5 20.5 25.0 28.9 32.0

01582500 1978–2008 28 206 143 46.4 66.1 80.8 93.1 104

01583000 1948–1981 33 2.4 1.4 .1 .3 .6 .8 1.1

01583100 1983–2008 16 14.6 9.7 3.1 4.5 5.5 6.1 6.7
Table 5 75

Table 5. Selected mean-flow and flow-duration statistics for streamgage locations in and near Pennsylvania.—Continued

[ft3/s; cubic feet per second; --, statistic not computed; <, less than]

70-percent 

exceedance

(ft3/s)

60-percent 

exceedance

(ft3/s)

50-percent 

exceedance

(ft3/s)

40-percent 

exceedance

(ft3/s)

30-percent 

exceedance

(ft3/s)

20-percent 

exceedance

(ft3/s)

15-percent 

exceedance

(ft3/s)

10-percent 

exceedance

(ft3/s)

5-percent 

exceedance

(ft3/s)

1-percent 

exceedance

(ft3/s)

64.0 90.0 125 174 239 330 398 489 660 1,230

2.2 2.8 3.9 5.2 6.9 9.8 12.0 16.0 23.0 63.9

57.0 81.4 120 167 236 350 445 600 949 2,260

14.5 22.3 34.8 51.4 74.5 108 135 179 272 695

1,520 2,010 2,700 3,480 4,590 6,390 7,740 10,100 12,400 14,300

1,310 1,780 2,340 3,120 4,290 6,000 7,380 9,580 11,900 13,800

5.8 7.6 10.0 13.0 18.0 25.0 30.0 40.0 62.0 153

69.0 103 145 200 280 400 500 653 978 2,370

5.2 5.9 6.7 8.2 12.7 24.6 35.3 51.6 85.9 190

22.0 31.0 40.0 51.0 65.0 86.0 103 125 166 317

31.8 35.5 39.7 44.9 50.2 60.0 64.9 74.6 85.7 135

208 266 335 428 563 776 960 1,220 1,770 3,550

224 292 373 482 634 879 1,070 1,360 2,030 4,290

13,100 16,600 20,100 23,600 27,100 31,000 32,300 34,000 35,800 37,200

10,800 13,900 17,000 20,000 23,100 26,200 27,700 29,300 30,800 32,000

3.0 4.7 6.7 9.2 13.5 19.8 24.7 33.2 50.3 147

159 186 217 259 311 387 448 535 723 1,410

14.0 21.0 30.0 41.0 56.0 80.0 100 133 200 453

79.1 105 137 177 229 305 360 458 701 1,520

102 136 181 241 321 439 538 699 1,050 2,300

165 235 324 435 582 807 1,020 1,310 1,930 4,180

4.5 5.4 6.4 7.7 9.4 11.9 13.7 15.5 20.3 36.3

65.9 76.6 87.4 101 116 139 151 183 246 446

7.2 10.8 14.7 19.2 25.2 34.4 41.1 51.2 72.8 159

266 354 466 616 805 1,130 1,380 1,800 2,650 5,600

123 181 258 363 521 769 993 1,360 2,300 6,250

47.0 52.5 58.4 64.4 78.6 104 128 161 230 508

24.0 32.0 41.0 53.0 71.0 99.0 118 150 222 520

35.6 50.1 65.9 85.4 113 152 185 234 324 701

34.9 52.6 72.4 94.5 123 165 196 256 387 1,090

82.0 104 132 168 219 300 359 457 678 1,690

14,200 17,900 21,600 25,300 29,000 32,700 34,600 36,400 38,300 39,700

11,500 14,700 17,900 21,100 24,300 27,500 29,100 30,700 32,300 33,600

2.3 2.9 3.7 4.7 6.0 8.2 10.1 13.8 22.8 73.6

164 211 267 337 431 572 681 828 1,160 2,490

313 386 470 565 694 884 1,020 1,250 1,780 4,250

17,100 23,100 29,100 35,000 41,000 46,900 49,900 52,900 55,900 58,300

4.0 4.8 5.4 6.2 7.3 8.9 10.0 13.0 19.0 66.2

68.9 81.3 95.7 112 134 163 185 221 296 713

3.3 4.2 5.2 6.6 8.3 11.3 14.5 20.6 39.3 140

26.7 32.3 37.9 45.0 53.4 64.5 74.9 87.2 131 338

38.3 45.5 53.6 63.1 75.7 91.6 104 124 160 331

123 142 166 193 229 269 311 356 457 882

1.3 1.6 1.8 2.2 2.6 3.2 3.8 4.5 5.7 13.6

8.2 9.8 11.8 13.8 15.9 19.7 21.7 25.6 33.9 76.1
76 Selected Streamflow Statistics for Streamgage Locations in and near Pennsylvania

Table 5. Selected mean-flow and flow-duration statistics for streamgage locations in and near Pennsylvania.—Continued

[ft2/s; cubic feet per second; --, statistic not computed; <, less than]

Streamgage

number

Period of 

record used 

in analysis1

Number of 

years used 

in analysis

Mean 

annual 

flow

(ft2/s)

Harmonic 

mean

(ft2/s)

99-percent 

exceedance

(ft2/s)

95-percent 

exceedance

(ft2/s)

90-percent 

exceedance

(ft2/s)

85-percent 

exceedance

(ft2/s)

80-percent 

exceedance

(ft2/s)

01583500 1945–2008 63 69.1 42.5 12.6 18.5 23.2 27.1 30.6

01583600 1983–2008 25 29.7 18.3 5.8 8.2 10.2 12.1 13.4

01584050 1976–2008 32 11.3 6.3 1.7 2.7 3.3 3.9 4.5

01584500 1927–2008 53 44.6 26.4 7.0 12.3 15.1 17.7 20.2

01585095 1992–2008 16 2.2 .3 <.1 .1 .1 .2 .3

01585100 1959–2008 47 12.4 2.9 .2 1.0 1.4 1.8 2.1

01585200 1958–2008 40 2.6 .8 <.1 .1 .2 .3 .5

01585300 1959–1989 29 6.5 1.1 <.1 .2 .4 .6 .8

01585400 1959–1987 28 2.6 .7 <.1 .1 .2 .2 .3

01585500 1950–2008 58 3.2 1.1 .1 .3 .5 .7 1.0

01586000 1946–2008 62 64.7 35.6 10.6 15.6 19.1 22.4 25.3

01586210 1983–2008 25 16.6 9.1 2.4 3.7 4.8 5.6 6.4

01586610 1983–2008 25 34.2 17.1 4.0 6.9 9.0 10.7 12.5

01587500 1949–1980 31 74.8 35.3 8.2 14.5 19.3 23.7 27.7

01589000 31945–1954 9 336 226 26.6 78.2 105 124 141

01589000 21955–2004 43 163 72.0 16.9 28.1 36.2 43.5 50.6

01589100 1958–2008 41 3.3 1.2 <.1 .2 .4 .6 .7

01589300 1957–2008 43 40.1 18.4 4.6 7.5 9.8 11.8 13.4

01589330 1960–2008 37 8.2 1.5 .1 .2 .5 .7 1.0

01589440 1966–2008 34 31.1 16.8 3.9 6.9 8.9 10.7 12.3

01589500 1945–2008 32 5.2 .5 .1 .4 .9 1.4 2.0

01594930 1981–2004 23 23.8 9.0 1.8 2.9 3.9 4.9 6.0

01594936 1981–2007 26 4.4 1.0 <.1 .2 .4 .6 .8

01594950 1987–2008 21 4.6 .3 <.1 .2 .3 .5 .6

01595000 1957–2008 51 174 52.1 7.2 15.4 23.1 30.2 37.3

01595200 1962–2008 46 98.4 21.9 3.3 5.7 8.2 11.4 14.9

4

01595300 1957–1982 25 68.3 8.6 .7 2.2 4.2 6.3 8.7

01595500 1950–2008 40 452 117 18.9 33.3 46.3 60.4 76.7

01595800 31967–1981 14 531 157 25.4 44.0 60.8 79.0 101

01596500 1949–2008 59 76.2 10.6 1.3 2.6 3.9 5.4 7.3

01597000 1949–1981 32 28.9 5.9 1.2 1.7 2.2 2.8 3.4

01597500 1951–2008 57 170 51.9 9.2 16.4 28.5 39.9 46.5

01598500 21951–2008 57 739 304 87.1 104 130 162 201

01599000 1906–2008 79 84.2 18.9 3.6 5.7 7.4 9.0 11.4

01600000 31939–1950 11 848 246 47.0 71.4 92.7 115 145

01600000 21951–2008 39 910 328 89.7 116 137 163 195

01601000 1952–2008 21 196 16.2 1.5 3.7 6.1 8.8 12.6

01601500 1906–2008 79 334 77.3 15.3 23.2 30.0 36.8 45.3

01603000 31930–1981 51 1,260 353 66.6 119 151 181 214

01603000 21982–2008 26 1,380 647 201 276 320 362 400

01603500 1933–1982 49 32.3 8.6 2.0 2.7 3.4 4.0 4.8

4

01604500 1939–2008 69 172 25.6 3.5 7.1 10.2 13.3 16.4

01609000 1929–2008 26 160 22.9 4.6 6.8 11.2 15.0 21.0

01610000 1939–2008 69 3,400 1,120 249 362 462 557 662

01610155 1968–2008 18 112 1.2 <.1 .4 1.5 2.7 4.8
Table 5 77

Table 5. Selected mean-flow and flow-duration statistics for streamgage locations in and near Pennsylvania.—Continued

[ft3/s; cubic feet per second; --, statistic not computed; <, less than]

70-percent 

exceedance

(ft3/s)

60-percent 

exceedance

(ft3/s)

50-percent 

exceedance

(ft3/s)

40-percent 

exceedance

(ft3/s)

30-percent 

exceedance

(ft3/s)

20-percent 

exceedance

(ft3/s)

15-percent 

exceedance

(ft3/s)

10-percent 

exceedance

(ft3/s)

5-percent 

exceedance

(ft3/s)

1-percent 

exceedance

(ft3/s)

37.6 45.0 53.0 62.3 74.6 90.6 103 123 161 344

16.1 18.7 21.3 24.7 28.9 36.4 42.7 52.2 77.5 188

5.7 7.0 8.3 9.8 11.7 14.3 15.7 19.4 26.8 79.2

24.6 29.0 33.5 38.2 45.5 55.6 62.9 75.9 105 264

.4 .6 .7 .9 1.0 1.7 2.6 4.8 10.7 33.1

2.7 3.3 4.2 5.3 6.9 10.4 14.7 23.8 49.9 171

.7 .9 1.1 1.4 1.9 2.7 3.5 5.4 10.9 29.2

1.1 1.5 1.9 2.4 3.1 4.8 6.6 11.5 27.3 97.0

.5 .6 .8 .9 1.2 1.8 2.6 4.5 10.7 35.5

1.4 1.8 2.2 2.7 3.2 4.1 4.9 6.1 8.8 22.2

31.3 37.6 45.3 54.5 65.9 83.9 97.4 118 167 412

8.0 10.0 12.5 15.0 18.4 22.8 26.3 32.2 43.6 94.3

15.8 19.6 23.9 29.3 36.3 46.5 54.2 65.2 90.1 199

34.2 41.8 50.9 63.1 78.5 99.2 114 139 193 443

173 204 245 295 366 452 527 609 825 1,850

63.0 77.6 94.3 115 145 196 246 322 497 1,210

1.0 1.3 1.5 1.8 2.2 3.0 4.0 6.2 12.9 37.9

16.5 19.9 23.5 27.7 34.2 43.6 50.8 68.7 122 355

1.3 1.6 2.0 2.6 3.5 5.7 8.8 15.9 36.6 119

15.4 18.6 21.8 26.0 31.6 38.4 44.9 53.4 76.0 221

2.8 3.6 4.4 5.3 6.4 7.6 8.4 9.4 12.8 23.4

8.7 12.5 16.3 20.8 26.4 35.2 41.4 49.7 71.7 150

1.3 1.9 2.7 3.6 4.7 6.5 7.9 10.3 15.1 30.8

1.0 1.8 2.7 3.8 5.0 6.9 8.5 11.1 16.3 33.7

55.9 79.1 107 141 186 252 305 392 568 1,170

23.7 34.9 49.5 69.9 100 145 183 240 343 710

15.7 25.2 36.8 51.6 71.3 102 129 168 247 521

121 183 258 349 479 682 831 1,070 1,580 3,070

156 224 308 419 570 789 988 1,270 1,820 3,410

13.4 22.0 34.2 50.0 73.0 108 139 190 306 635

5.4 8.7 13.6 19.9 28.8 43.2 54.5 73.6 112 230

57.8 69.3 84.1 98.9 125 223 303 420 646 1,340

274 340 424 545 735 1,060 1,320 1,710 2,500 4,800

17.3 26.2 39.0 56.2 80.1 120 150 204 322 689

222 328 462 632 877 1,220 1,460 1,920 2,930 6,760

281 373 494 661 936 1,350 1,700 2,180 3,160 5,970

22.4 41.5 69.1 108 173 273 350 501 802 1,880

67.9 103 149 217 316 479 601 800 1,250 2,810

304 441 627 887 1,260 1,820 2,280 3,020 4,510 9,470

484 607 794 1,030 1,380 1,990 2,460 3,160 4,560 8,500

7.0 11.0 15.0 22.0 31.0 45.0 56.0 73.0 110 259

25.5 40.0 61.9 93.7 144 239 322 448 698 1,610

38.0 63.0 101 142 207 323 422 625 993 2,480

944 1,330 1,830 2,460 3,410 4,940 6,090 7,810 11,000 13,500

11.0 22.0 36.0 57.0 88.5 141 191 269 500 1,080
78 Selected Streamflow Statistics for Streamgage Locations in and near Pennsylvania

Table 5. Selected mean-flow and flow-duration statistics for streamgage locations in and near Pennsylvania.—Continued

[ft2/s; cubic feet per second; --, statistic not computed; <, less than]

Streamgage

number

Period of 

record used 

in analysis1

Number of 

years used 

in analysis

Mean 

annual 

flow

(ft2/s)

Harmonic 

mean

(ft2/s)

99-percent 

exceedance

(ft2/s)

95-percent 

exceedance

(ft2/s)

90-percent 

exceedance

(ft2/s)

85-percent 

exceedance

(ft2/s)

80-percent 

exceedance

(ft2/s)

4

01611500 1923–2008 84 587 162 42.5 56.8 68.6 79.8 92.2

01613000 1933–2008 75 4,200 1,350 304 440 554 668 787

01613050 1966–2008 41 13.3 .5 0 .1 .3 .6 .9

4

01614000 1929–2008 43 196 29.4 4.6 7.8 11.5 15.2 19.1

01614090 1961–1981 20 7.3 2.1 .4 .7 1.0 1.2 1.5

01614500 1929–2008 79 606 231 56.0 84.0 103 120 140

4

01616500 1948–2008 60 246 119 36.4 49.3 58.0 66.5 75.1

01617000 1949–2008 26 10.9 4.6 1.1 1.7 2.3 2.6 3.0

01617800 1964–2008 44 12.1 4.4 .5 1.6 2.7 3.4 4.1

01618000 1929–2004 69 6,120 2,080 448 686 887 1,070 1,290

01619000 1949–2008 21 114 68.6 19.7 31.3 37.7 42.4 47.1

01619500 1900–2008 83 291 181 64.4 83.3 97.4 110 122

01637500 1948–2008 60 77.4 12.7 1.3 3.4 5.4 7.6 10.5

01639000 1943–2008 65 211 16.3 1.8 4.9 7.9 11.0 16.0

01639140 1991–2001 10 37.0 2.6 .1 .6 1.2 1.9 2.8

01639500 1948–2008 60 115 42.8 10.7 18.2 23.6 28.4 32.8

01640500 1932–1984 52 9.5 1.9 .1 .4 .7 1.1 1.4

01640965 1982–1994 12 3.4 .4 <.1 .1 .3 .4 .5

01640970 1982–1991 9 6.3 1.3 .1 .2 .5 .7 .9

01641000 31951–1968 17 22.8 -- 1.2 1.9 2.3 2.9 3.6

01641000 21970–1991 21 29.4 -- 2.7 3.7 4.5 5.2 6.1

01641500 1948–1984 36 11.8 4.2 1.0 1.4 1.7 2.0 2.4

01642500 31933–1970 37 77.5 -- 8.5 13.3 17.0 20.0 23.3

01642500 21972–1982 10 109 -- 12.0 17.1 21.5 25.9 30.6

01643000 1930–2008 78 951 287 54.8 92.9 122 151 183

01643500 1949–2008 51 70.3 26.7 5.0 10.0 13.9 17.0 20.0

03007800 1975–2008 33 455 122 18.0 32.0 48.0 66.0 86.0

03008000 1966–1978 12 12.1 .9 .1 .3 .6 .8 1.2

03009680 1975–1995 20 308 88.7 8.6 25.0 35.0 48.0 62.0

03010500 1940–2008 68 959 240 37.0 59.0 87.0 122 164

03010655 1975–2008 33 158 40.2 6.2 10.0 15.0 20.0 27.0

03011020 1904–2008 104 2,790 778 132 213 292 386 495

03011800 1966–2008 42 78.7 28.5 5.1 8.4 12.0 15.0 19.0

03012550 31936–1965 30 3,710 -- 204 268 341 433 555

03012550 21966–1991 26 3,990 -- 364 635 740 898 1,150

03013000 1939–1993 54 539 153 34.0 44.0 55.0 70.0 87.0

03014500 1935–2008 73 366 88.2 10.0 23.8 38.8 51.8 60.6

03015000 31940–1949 9 1,470 448 79.8 117 157 206 254

03015000 21950–2008 58 1,560 457 82.6 128 170 211 260

03015280 1963–1978 15 23.2 6.2 1.1 1.7 2.3 3.0 3.7

03015500 1910–2008 98 600 176 36.0 52.0 68.0 86.0 107

03016000 31942–1965 23 6,340 1,740 369 497 614 764 987

03016000 21960–2008 45 6,730 2,920 478 991 1,470 1,770 2,050

03017500 1938–1979 41 428 115 20.2 30.5 43.2 58.4 75.6

03020000 1941–1991 50 893 116 32.1 58.6 84.8 109 137
Table 5 79

Table 5. Selected mean-flow and flow-duration statistics for streamgage locations in and near Pennsylvania.—Continued

[ft3/s; cubic feet per second; --, statistic not computed; <, less than]

70-percent 

exceedance

(ft3/s)

60-percent 

exceedance

(ft3/s)

50-percent 

exceedance

(ft3/s)

40-percent 

exceedance

(ft3/s)

30-percent 

exceedance

(ft3/s)

20-percent 

exceedance

(ft3/s)

15-percent 

exceedance

(ft3/s)

10-percent 

exceedance

(ft3/s)

5-percent 

exceedance

(ft3/s)

1-percent 

exceedance

(ft3/s)

126 176 248 348 497 759 996 1,360 2,160 5,310

1,130 1,610 2,220 3,010 4,100 5,930 7,390 9,690 12,100 14,100

1.8 3.3 5.0 7.5 12.0 18.0 24.0 33.0 53.0 121

28.9 45.4 69.5 104 159 253 331 456 773 2,010

2.2 3.2 4.5 6.1 8.2 11.0 13.0 16.0 22.0 42.0

187 252 338 450 602 843 1,030 1,320 1,930 4,220

93.4 116 145 183 235 315 381 491 737 1,820

3.9 5.2 7.0 9.7 13.4 17.8 20.6 24.5 31.7 56.7

5.5 7.1 9.0 11.8 14.8 19.0 21.5 25.8 34.0 54.9

1,790 2,440 3,280 4,320 5,960 8,610 10,400 12,300 14,100 15,500

57.2 68.4 83.8 102 126 157 183 219 286 544

146 176 211 258 322 413 471 571 757 1,350

17.6 26.7 38.9 55.7 77.7 110 139 182 265 597

27.0 43.0 65.0 95.0 141 223 297 450 867 2,590

5.2 8.3 12.8 19.8 28.7 44.3 57.2 79.6 138 426

42.4 54.1 67.6 85.5 109 145 176 225 342 942

2.4 3.6 5.4 7.5 10.5 14.9 17.9 21.6 30.9 63.4

.8 1.0 1.7 2.4 3.5 5.0 6.3 8.2 12.8 27.9

1.6 2.5 3.8 5.0 6.5 8.9 11.0 14.3 21.4 47.8

5.2 7.6 11.8 17.5 25.3 35.5 42.9 53.8 77.4 169

8.4 12.6 17.0 22.5 29.6 41.1 49.8 63.6 92.0 197

3.4 5.1 7.6 10.9 14.9 19.8 22.8 27.2 36.2 62.3

30.7 38.4 48.2 60.4 77.7 104 127 157 228 558

40.8 53.0 65.0 82.4 103 137 164 208 321 712

259 353 480 642 868 1,230 1,550 2,053 3,220 8,470

25.8 33.8 43.6 55.0 68.4 88.8 106 137 204 545

130 185 250 334 450 643 801 1,030 1,590 3,360

2.3 3.9 5.8 8.3 12.0 17.2 21.2 27.8 44.0 99.9

97.0 135 180 236 315 437 539 698 1,010 2,100

263 380 535 728 1,020 1,440 1,760 2,290 3,330 5,810

44.0 65.0 88.0 119 163 228 276 361 523 1,200

763 1,120 1,570 2,160 3,000 4,210 5,240 6,830 9,730 12,500

28.0 39.0 51.0 65.2 85.0 113 136 171 240 458

918 1,350 1,920 2,750 3,940 5,690 7,130 9,180 11,500 13,400

1,530 1,960 2,560 3,530 4,390 6,310 7,590 9,320 11,000 12,400

134 203 291 400 549 850 1,080 1,400 1,900 3,160

84.0 149 287 412 534 672 751 854 1,020 1,330

395 616 915 1,260 1,680 2,340 3,000 3,810 5,000 8,100

419 707 1,060 1,430 1,920 2,650 3,170 3,870 4,940 7,270

5.7 8.3 12.0 16.0 23.0 32.0 40.0 52.0 78.0 181

160 227 310 420 589 852 1,080 1,440 2,170 4,200

1,630 2,380 3,430 4,970 7,070 10,000 11,600 13,200 14,800 16,100

2,630 3,390 4,620 6,100 8,110 10,700 12,100 13,400 14,700 15,800

119 171 241 335 465 660 797 1,030 1,420 2,850

221 293 498 703 970 1,400 1,840 2,310 3,280 5,530
80 Selected Streamflow Statistics for Streamgage Locations in and near Pennsylvania

Table 5. Selected mean-flow and flow-duration statistics for streamgage locations in and near Pennsylvania.—Continued

[ft2/s; cubic feet per second; --, statistic not computed; <, less than]

Streamgage

number

Period of 

record used 

in analysis1

Number of 

years used 

in analysis

Mean 

annual 

flow

(ft2/s)

Harmonic 

mean

(ft2/s)

99-percent 

exceedance

(ft2/s)

95-percent 

exceedance

(ft2/s)

90-percent 

exceedance

(ft2/s)

85-percent 

exceedance

(ft2/s)

80-percent 

exceedance

(ft2/s)

03020500 1933–2008 75 542 166 34.0 47.0 63.0 81.0 102

03021350 1975–2008 33 224 43.3 5.4 11.0 17.0 23.0 31.0

03021410 1975–1993 19 130 -- 2.8 6.4 9.3 13.0 17.0

03021500 1910–1971 61 415 73.5 11.0 18.0 26.0 35.0 46.0

03021520 1972–1991 19 530 149 18.8 37.1 50.8 63.9 82.2

03022540 1975–1995 20 55.0 -- 2.7 4.5 6.5 8.5 11.1

03022554 1975–1991 16 88.6 28.1 6.7 8.6 12.4 14.1 15.8

03023100 1989–2008 19 1,630 416 61.9 101 149 202 279

03024000 31933–1970 37 1,720 402 73.0 104 141 185 233

03024000 21971–2008 37 2,050 631 92.4 166 244 327 434

03025000 1933–1979 46 272 82.6 18.0 25.0 32.0 40.0 50.0

03025500 31916–1965 50 10,200 -- 522 791 1,050 1,330 1,700

03025500 21967–2008 42 11,400 -- 1,470 2,140 2,570 2,930 3,300

03026500 1952–2008 56 14.6 2.7 .3 .6 1.1 1.6 2.2

03027500 21953–1991 38 137 64.3 15.0 20.9 27.3 36.3 44.3

03028000 1954–2008 54 127 40.1 7.2 11.0 15.0 20.0 26.0

03028500 21953–1995 42 383 227 50.7 101 125 147 162

03029500 31940–1952 13 1,460 -- 68.2 97.7 132 171 221

03029500 21953–2008 56 1,490 -- 163 249 301 344 397

03030500 1948–2008 60 1,810 286 23.4 45.6 162 331 416

03031500 31934–1965 32 12,800 -- 749 1,120 1,400 1,750 2,210

03031500 21967–2008 42 14,600 -- 2,040 2,820 3,370 3,870 4,420

03031950 1964–1981 17 13.3 3.3 .5 .9 1.3 1.6 2.1

03032500 1919–2008 88 891 230 40.0 62.0 85.0 112 143

03034000 1939–2008 69 281 89.6 18.4 26.8 34.8 43.9 54.8

03034500 1940–2008 68 151 25.3 2.7 5.9 9.8 14.7 20.5

03036000 21941–1991 50 605 146 19.2 37.7 56.0 76.7 98.4

03036500 31906–1965 53 15,400 -- 879 1,310 1,720 2,200 2,790

03036500 21967–2008 42 16,700 -- 2,080 2,920 3,560 4,170 4,950

03038000 31938–1968 30 276 42.0 6.0 10.0 14.0 19.0 26.0

03038000 21969–2008 39 297 83.1 19.7 28.3 33.5 38.7 45.3

03039000 31919–1959 40 420 37.9 3.9 12.8 20.5 26.4 36.7

03039000 21940–1991 51 417 70.0 8.0 18.2 26.9 37.2 50.4

03039200 1965–1978 13 6.2 1.0 .1 .2 .4 .6 .8

03039925 1985–1998 11 7.6 2.4 .3 .6 1.0 1.4 1.8

03040000 1914–2008 90 689 147 17.8 37.8 62.4 84.0 107

03041000 1939–2006 57 313 76.5 8.1 19.4 38.1 52.3 64.4

03041500 1939–2008 69 1,290 569 166 218 257 298 340

03042000 1952–2008 56 368 129 29.0 40.2 53.0 66.1 81.0

03042200 1961–1988 19 13.2 2.5 .3 .6 .9 1.3 1.8

03042280 21972–2008 36 105 31.3 7.0 9.2 11.8 15.1 18.8

03042500 21969–2008 39 294 132 39.4 50.9 58.8 66.9 77.5

03042500 31952–1968 16 259 59.2 12.6 16.9 21.2 27.4 34.6

03043000 1908–1951 43 670 154 25.5 42.2 60.0 79.1 102

03044000 21952–1991 39 2,380 819 231 324 412 499 586
Table 5 81

Table 5. Selected mean-flow and flow-duration statistics for streamgage locations in and near Pennsylvania.—Continued

[ft3/s; cubic feet per second; --, statistic not computed; <, less than]

70-percent 

exceedance

(ft3/s)

60-percent 

exceedance

(ft3/s)

50-percent 

exceedance

(ft3/s)

40-percent 

exceedance

(ft3/s)

30-percent 

exceedance

(ft3/s)

20-percent 

exceedance

(ft3/s)

15-percent 

exceedance

(ft3/s)

10-percent 

exceedance

(ft3/s)

5-percent 

exceedance

(ft3/s)

1-percent 

exceedance

(ft3/s)

155 220 300 397 536 750 924 1,220 1,880 3,930

52.0 78.0 104 140 192 292 375 530 875 1,940

28.6 43.5 59.6 80.6 113 180 234 321 504 1,090

77.0 125 188 270 390 585 752 1,020 1,580 3,310

138 222 330 509 777 1,010 1,130 1,270 1,460 2,290

17.1 23.2 30.3 38.8 52.2 75.2 93.5 127 192 439

22.8 37.0 52.9 66.8 101 134 157 231 319 546

484 767 1,160 1,600 2,060 2,620 3,080 3,760 5,080 8,330

386 600 898 1,270 1,840 2,690 3,360 4,360 6,180 11,000

699 1025 1,420 1,940 2,530 3,280 3,880 4,690 6,160 9,940

72.0 103 142 197 273 384 470 617 933 1,970

2,650 3,950 5,670 8,070 11,000 13,900 15,400 16,800 18,300 19,400

4,530 6,160 8,280 10,700 13,100 15,500 16,700 17,800 19,000 20,000

3.9 5.9 8.2 11.0 15.0 21.0 25.0 32.0 48.0 104

60.5 79.6 110 138 168 201 230 258 365 591

39.0 56.0 76.0 100 133 185 224 290 418 816

191 224 261 319 405 542 648 799 1,070 1,860

360 549 789 1,140 1,660 2,340 2,820 3,450 4,950 9,750

529 708 943 1,240 1,640 2,220 2,650 3,270 4,640 8,860

615 867 1,160 1,570 2,070 2,790 3,250 4,130 5,540 10,200

3,400 4,940 7,020 10,100 13,400 16,600 18,300 19,900 21,600 22,900

5,930 7,980 10,500 12,900 15,400 17,900 19,100 20,400 21,600 22,600

3.4 4.9 6.9 9.4 13.0 18.0 22.0 29.0 47.0 109

229 335 470 660 920 1,330 1,630 2,130 3,090 5,990

82.5 117 159 217 293 408 498 634 955 1,920

35.1 53.2 76.1 105 147 218 268 363 558 1,210

166 226 320 481 639 931 1,160 1,510 2,230 3,900

4,350 6,260 8,820 11,700 14,600 17,600 19,000 20,500 21,900 23,100

6,850 9,260 11,800 14,400 16,900 19,500 20,800 22,000 23,300 24,400

46.0 75.0 115 172 254 390 503 691 1,060 2,330

64.6 97.0 141 201 284 417 523 693 1,060 2,430

64.6 105 168 242 385 644 787 1,070 1,760 3,670

81.3 120 186 252 430 690 810 1,090 1,700 2,980

1.4 2.4 3.3 4.4 6.0 8.5 11.0 14.0 23.0 52.0

2.5 3.7 4.9 6.3 8.4 11.0 13.0 17.0 24.0 44.2

166 243 345 490 694 1,020 1,280 1,690 2,470 5,140

89.6 124 170 233 318 444 547 708 1,050 2,330

438 568 746 1,000 1,350 1,880 2,300 2,910 4,090 8,070

114 156 213 285 387 530 636 803 1,210 2,510

3.1 4.6 6.5 9.0 12.0 18.0 23.0 30.0 46.0 104

28.6 41.7 60.4 84.9 116 160 191 242 332 672

104 138 180 236 309 418 500 616 907 1,830

54.1 81.9 121 179 256 384 483 642 964 2,000

160 237 336 472 676 986 1,230 1,610 2,400 5,150

798 1,090 1,440 1,870 2,490 3,510 4,260 5,460 7,860 11,900
82 Selected Streamflow Statistics for Streamgage Locations in and near Pennsylvania

Table 5. Selected mean-flow and flow-duration statistics for streamgage locations in and near Pennsylvania.—Continued

[ft2/s; cubic feet per second; --, statistic not computed; <, less than]

Streamgage

number

Period of 

record used 

in analysis1

Number of 

years used 

in analysis

Mean 

annual 

flow

(ft2/s)

Harmonic 

mean

(ft2/s)

99-percent 

exceedance

(ft2/s)

95-percent 

exceedance

(ft2/s)

90-percent 

exceedance

(ft2/s)

85-percent 

exceedance

(ft2/s)

80-percent 

exceedance

(ft2/s)

03044000 31940–1951 11 2,390 997 276 354 418 487 563

03045000 1940–2008 68 297 43.3 4.9 13.0 21.4 31.5 43.2

03045500 1920–1940 18 438 110 17.2 33.7 47.7 59.6 72.6

03047000 1942–1991 50 492 -- 19.0 40.6 55.0 70.3 93.0

03047500 1908–1937 29 3,020 895 143 278 383 482 584

03048500 21942–2008 66 3,110 1,170 236 382 497 595 714

03049000 1941–2008 67 192 34.9 4.7 8.3 12.0 17.0 23.0

03049500 21967–2008 42 20,400 -- 2,500 3,450 4,220 5,110 6,060

03049500 31940–1965 26 18,800 -- 1,360 1,770 2,210 2,710 3,400

03049800 1963–2008 45 6.4 .8 <.1 .2 .4 .5 .7

4

03061500 1908–2008 85 169 12.1 .8 3.0 5.5 8.4 12.4

03062400 1965–2002 33 16.1 .7 .1 .3 .5 .8 1.1

03062500 1946–2008 29 105 13.4 1.4 3.2 5.0 7.0 9.9

03065000 1941–2008 66 790 154 15.1 38.0 66.0 99.3 136

4

03066000 1922–2008 86 205 48.2 5.8 12.8 20.0 28.7 38.1

03068800 1974–2008 18 447 141 19.3 36.6 61.2 83.1 106

4

03069000 1911–1993 68 554 146 16.5 41.6 69.1 94.8 121

4

03069500 1913–2008 95 1,740 405 44.7 106 179 253 330

4

03070000 1924–1996 72 2,330 487 51.2 123 218 317 423

03070420 1978–1995 17 1.8 .2 <.1 .1 .2 .3 .4

4

03070500 1910–2008 95 420 41.3 4.8 12.0 21.3 33.4 47.9

03072000 1941–2008 67 281 22.1 2.0 4.8 8.5 13.5 19.2

03072655 1939–2008 69 8,450 2,630 474 756 1,070 1,360 1,690

03072840 1969–1979 10 155 27.1 3.5 7.2 9.8 14.0 19.0

03073000 1932–1995 63 199 7.9 .6 1.6 3.2 6.0 9.8

03074300 1967–1978 11 7.1 1.0 .1 .3 .4 .6 .9

03074500 1943–2008 65 103 44.4 10.8 17.3 21.7 25.0 28.2

03075070 1934–2008 74 9,260 2,930 539 856 1,180 1,510 1,840

03075500 1942–2008 66 308 62.6 7.1 15.8 24.9 35.6 48.0

03076500 21941–2008 67 638 243 39.6 74.8 112 144 176

03076600 1965–2008 43 92.0 22.6 3.4 5.9 8.4 11.8 15.4

03077500 1944–1991 48 889 -- 108 170 244 326 395

03078000 1948–2008 60 121 20.1 1.9 4.8 8.2 12.0 16.0

03079000 1921–2008 87 665 147 20.0 37.0 57.0 77.0 101

03080000 1919–2008 89 268 53.9 6.3 12.0 20.0 30.0 40.0

03081000 1941–2008 67 2,030 1,110 281 496 619 687 754

03082200 1962–1978 16 19.0 1.5 .1 .3 .8 1.2 1.9

03082500 31909–1924 15 2,580 492 34.3 98.6 189 285 381

03082500 21925–2008 83 2,610 1,170 198 434 616 729 840

03083000 1942–1979 37 5.6 .8 <.1 .2 .4 .5 .7

03083500 21925–2008 78 3,120 1,470 314 562 723 854 974

03084000 1949–1993 43 5.4 1.0 0 .2 .4 .6 .8

03085000 1939–2004 65 12,700 5,220 1,310 1,810 2,270 2,710 3,150

03085500 1920–2008 81 294 120 29.6 46.1 56.8 65.9 75.5

03086000 1934–2008 74 33,600 14,600 3,210 4,710 6,120 7,520 9,000
Table 5 83

Table 5. Selected mean-flow and flow-duration statistics for streamgage locations in and near Pennsylvania.—Continued

[ft3/s; cubic feet per second; --, statistic not computed; <, less than]

70-percent 

exceedance

(ft3/s)

60-percent 

exceedance

(ft3/s)

50-percent 

exceedance

(ft3/s)

40-percent 

exceedance

(ft3/s)

30-percent 

exceedance

(ft3/s)

20-percent 

exceedance

(ft3/s)

15-percent 

exceedance

(ft3/s)

10-percent 

exceedance

(ft3/s)

5-percent 

exceedance

(ft3/s)

1-percent 

exceedance

(ft3/s)

770 1,040 1,370 1,880 2,550 3,500 4,160 5,410 7,430 12,200

73.0 112 161 224 308 436 544 710 1,040 2,210

105 150 218 301 424 636 797 1,050 1,570 3,370

132 203 255 375 512 752 946 1,240 1,810 3,190

829 1,200 1,680 2,290 3,150 4,470 5,530 7,100 9,890 12,500

1,010 1,390 1,870 2,510 3,420 4,800 5,710 7,310 10,200 12,700

41.0 65.0 95.0 135 190 273 343 456 698 1,450

8,300 11,200 14,000 16,900 19,800 22,600 24,100 25,500 27,000 28,100

5,320 7,620 10,500 13,300 16,100 19,000 20,400 21,800 23,200 24,400

1.2 1.8 2.7 4.0 5.9 8.6 11.0 15.0 24.0 55.0

22.4 38.4 61.2 92.1 137 214 282 409 698 1,790

2.8 5.0 8.0 12.0 16.7 24.0 30.0 39.7 59.8 133

19.0 34.0 52.0 74.0 104 151 190 255 391 825

219 318 441 592 808 1,150 1,400 1,860 2,810 5,560

58.9 84.3 116 155 209 296 370 486 730 1,390

157 213 275 354 457 622 766 998 1,450 2,950

176 239 314 414 557 779 979 1,280 1,940 3,940

507 723 996 1,330 1,820 2,530 3,120 4,060 5,990 11,000

671 978 1,340 1,800 2,400 3,360 4,160 5,450 8,060 12,300

.6 .7 .9 1.3 1.8 2.6 3.2 4.5 7.0 15.2

89.3 145 216 309 432 609 758 1,010 1,540 3,270

36.0 62.5 101 158 239 375 491 697 1,150 2,760

2,430 3,470.1 4,940 6,980 9,680 12,500 14,000 15,400 16,800 18,000

31.0 51.0 74.0 105 150 213 265 350 556 1,330

20.0 38.0 66.0 105 163 260 346 490 819 2,040

1.5 2.2 3.3 4.7 6.9 10.0 13.0 16.0 25.0 55.0

37.4 48.7 63.2 82.3 107 143 173 216 313 697

2,680 3,780 5,330 7,450 10,200 13,100 14,500 15,900 17,300 18,500

78.9 118 168 233 321 456 574 751 1,080 2,160

244 320 411 527 686 937 1,110 1,410 2,060 3,760

24.9 36.6 50.5 68.4 93.1 134 167 225 329 646

497 576 670 774 929 1,130 1,360 1,750 2,510 4,530

30.0 46.0 68.0 93.0 127 176 219 282 420 854

162 242 343 482 677 958 1,180 1,540 2,330 4,930

69.0 102 148 200 278 393 485 639 938 1,840

903 1,060 1,290 1,650 2,160 2,990 3,630 4,570 6,210 9,720

3.7 6.1 9.0 13.0 18.0 26.0 33.0 45.0 70.0 158

599 904 1,320 1,870 2,660 3,930 4,870 6,290 9,280 12,800

1,050 1,290 1,650 2,160 2,860 3,920 4,750 5,900 7,920 11,300

1.1 1.8 2.7 3.8 5.4 8.0 10.2 14.2 21.7 48.0

1,230 1,550 1,960 2,580 3,370 4,640 5,560 7,010 9,440 11,800

1.2 1.8 2.5 3.5 5.0 7.3 9.2 13.0 20.0 44.0

4,230 5,810 7,810 10,600 13,300 16,000 17,400 18,800 20,100 21,200

97.4 128 169 222 295 408 494 624 939 2,090

12,000 15,000 17,900 20,900 23,900 26,900 28,400 29,800 31,300 32,500
84 Selected Streamflow Statistics for Streamgage Locations in and near Pennsylvania

Table 5. Selected mean-flow and flow-duration statistics for streamgage locations in and near Pennsylvania.—Continued

[ft2/s; cubic feet per second; --, statistic not computed; <, less than]

Streamgage

number

Period of 

record used 

in analysis1

Number of 

years used 

in analysis

Mean 

annual 

flow

(ft2/s)

Harmonic 

mean

(ft2/s)

99-percent 

exceedance

(ft2/s)

95-percent 

exceedance

(ft2/s)

90-percent 

exceedance

(ft2/s)

85-percent 

exceedance

(ft2/s)

80-percent 

exceedance

(ft2/s)

03086500 1942–1993 48 90.2 9.7 .2 .8 3.5 6.2 8.7

03090500 31931–1942 11 211 24.0 3.6 6.2 8.6 12.5 16.4

03090500 21943–1991 48 248 16.7 .6 15.6 25.8 43.7 62.2

03091500 1930–2008 78 279 70.0 7.9 33.1 52.6 67.8 80.3

03092000 1942–1993 51 23.4 .7 <.1 .1 .2 .4 .6

03092090 1966–1993 27 28.3 5.0 .7 1.6 2.3 3.0 3.7

03092460 1969–1991 22 106 48.4 8.9 18.2 22.6 25.2 27.8

03092500 31927–1966 39 95.9 19.7 5.3 7.2 8.6 10.1 11.7

03092500 21967–1981 14 108 52.9 10.5 18.4 23.7 27.4 33.0

03093000 1927–2008 78 117 30.9 7.0 11.0 14.0 16.0 19.0

03094000 1941–2008 67 621 326 111 150 178 204 223

03095500 1944–1991 27 86.0 -- .3 2.8 4.1 4.8 5.5

03097550 1988–2008 20 984 525 208 251 289 318 347

03098000 1922–1982 60 873 323 67.4 109 147 184 221

03098500 1944–2000 28 57.8 4.1 .3 1.3 2.4 3.3 4.6

03098600 1988–2008 20 1,160 608 221 290 343 373 400

03099500 1944–2000 48 1,120 631 213 288 345 387 427

03100000 1912–1922 10 200 28.0 4.4 6.2 8.5 12.4 17.1

03101500 1935–2008 73 212 42.3 2.5 14.8 28.1 42.2 57.3

03102000 31920–1932 12 225 28.4 3.8 5.8 8.9 12.9 17.6

03102500 1914–2008 92 146 33.8 5.8 9.4 13.0 16.0 21.0

03102850 1966–2008 42 485 223 59.5 86.6 103 120 136

03102950 1966–1994 28 129 9.1 .8 3.0 5.5 8.2 12.0

03103000 1914–1963 47 201 19.2 2.1 4.7 6.9 9.3 12.0

03103500 1938–1991 53 764 343 94.6 147 174 199 217

03104000 31910–1932 22 714 116 16.7 27.8 40.2 52.7 70.1

03104500 31910–1932 21 899 143 19.1 33.5 48.6 68.4 91.7

03104760 1969–1981 12 3.3 .3 <.1 .1 .2 .3 .4

03105500 1915–2008 79 2,620 1,130 190 430 583 690 788

03106000 1920–2008 88 466 89.4 13.0 22.0 33.0 44.0 58.0

03106300 21970–2008 37 69.6 15.3 1.8 3.4 5.0 6.7 9.0

03106500 31912–1969 58 553 166 34.0 47.0 58.0 68.0 81.0

03106500 21970–2008 38 609 -- 52.5 71.4 92.1 115 142

03107500 1957–2008 51 3,900 1,920 569 774 912 1,030 1,170

03108000 21957–2008 51 190 -- 9.3 15.8 21.9 28.4 35.0

03108000 31942–1956 14 207 -- 8.3 13.5 18.3 23.8 30.6

03109500 1916–2008 92 529 136 25.0 39.0 53.0 68.0 85.0

03110000 1941–2008 67 164 27.7 3.0 6.9 11.0 16.0 21.0

03111150 1961–1985 19 9.6 1.0 0 0 .2 .4 .6

03111500 1942–2008 66 131 52.2 12.0 18.0 23.0 28.0 33.0

03111534 1979–1995 16 42,000 22,300 5,290 8,040 9,950 11,900 13,800

03111548 1983–2008 23 117 53.3 13.0 20.0 25.3 30.2 35.3

4

03112000 31941–1986 45 335 -- .9 3.3 8.4 16.2 25.3

03112000 21987–2008 21 359 -- 2.2 8.2 15.9 22.9 31.4

03114000 1927–2003 53 163 6.8 .4 2.0 4.9 8.3 12.9
Table 5 85

Table 5. Selected mean-flow and flow-duration statistics for streamgage locations in and near Pennsylvania.—Continued

[ft3/s; cubic feet per second; --, statistic not computed; <, less than]

70-percent 

exceedance

(ft3/s)

60-percent 

exceedance

(ft3/s)

50-percent 

exceedance

(ft3/s)

40-percent 

exceedance

(ft3/s)

30-percent 

exceedance

(ft3/s)

20-percent 

exceedance

(ft3/s)

15-percent 

exceedance

(ft3/s)

10-percent 

exceedance

(ft3/s)

5-percent 

exceedance

(ft3/s)

1-percent 

exceedance

(ft3/s)

15.2 22.5 33.1 47.0 69.4 109 145 217 389 953

23.2 33.4 50.0 74.9 118 213 313 536 1,060 2,400

99.2 132 166 200 252 331 418 582 839 1,470

107 137 168 199 255 363 487 707 1,020 1,750

1.2 2.1 3.9 6.6 11.0 20.0 30.0 50.0 105 353

5.5 8.0 11.5 15.8 21.7 33.0 43.3 63.1 120 277

44.0 61.5 78.1 94.6 116 147 179 227 331 575

15.2 20.0 26.9 40.9 62.3 102 140 210 418 1,190

45.7 63.5 80.9 98.2 121 156 182 221 321 571

25.0 34.0 46.0 64.0 90.0 137 182 265 471 1,130

261 299 337 415 572 903 1,160 1,500 2,050 3,510

10.7 20.5 34.4 63.3 96.6 148 179 226 338 603

397 447 537 684 994 1,520 1,910 2,390 3,150 5,220

300 379 450 561 764 1,230 1,620 2,160 3,110 6,260

7.6 11.7 17.6 26.3 40.5 66.7 93.6 144 258 604

454 529 608 798 1,130 1,740 2,170 2,760 3,780 7,180

501 571 667 798 1,070 1,580 1,970 2,490 3,530 6,640

30.7 54.2 78.4 110 173 284 368 487 785 1,810

84.1 109 141 184 242 348 448 551 680 808

33.8 60.7 97.8 146 238 382 472 592 862 1,670

32.0 48.0 69.0 96.0 133 196 246 336 551 1,210

174 229 309 428 599 787 913 1,050 1,370 2,500

23.0 37.0 55.0 83.0 124 199 260 352 517 882

21.0 38.0 64.0 106 181 315 412 546 813 1,690

253 301 382 576 859 1,270 1,560 1,870 2,430 3,870

123 206 308 458 720 1,120 1,390 1,780 2,690 5,600

162 264 396 586 927 1,390 1,750 2,300 3,520 6,760

.6 .7 .9 1.3 2.2 3.7 5.2 8.5 15.4 38.1

963 1,160 1,500 2,000 2,830 4,040 4,930 6,100 8,180 11,700

94.0 146 216 310 448 659 831 1,100 1,700 3,830

17.0 27.6 43.8 63.0 84.2 119 144 179 235 349

115 167 248 355 523 818 1,040 1,390 1,990 4,120

208 285 379 490 645 895 1,080 1,380 1,990 3,840

1,500 1,890 2,450 3,240 4,300 5,890 7,060 8,720 10,800 12,400

50.4 72.8 101 140 194 274 338 438 649 1,370

46.5 68.3 99.7 146 206 298 377 491 731 1,700

125 182 258 361 503 730 920 1,240 1,890 4,160

34.0 52.2 80.0 113 161 235 294 390 595 1,290

1.4 2.4 3.9 6.0 9.0 13.0 17.0 22.0 35.0 87.0

45.0 60.0 80.0 106 138 186 219 270 385 852

17,600 21,400 25,200 29,000 32,800 36,600 38,500 40,400 42,300 43,900

46.5 60.3 76.3 95.0 121 157 186 233 335 790

49.5 80.5 130 198 303 468 603 838 1,320 3,040

61.1 110 166 240 340 498 629 857 1,410 3,200

24.2 42.0 66.7 101 147 222 281 389 621 1,560
86 Selected Streamflow Statistics for Streamgage Locations in and near Pennsylvania

Table 5. Selected mean-flow and flow-duration statistics for streamgage locations in and near Pennsylvania.—Continued

[ft2/s; cubic feet per second; --, statistic not computed; <, less than]

Streamgage

number

Period of 

record used 

in analysis1

Number of 

years used 

in analysis

Mean 

annual 

flow

(ft2/s)

Harmonic 

mean

(ft2/s)

99-percent 

exceedance

(ft2/s)

95-percent 

exceedance

(ft2/s)

90-percent 

exceedance

(ft2/s)

85-percent 

exceedance

(ft2/s)

80-percent 

exceedance

(ft2/s)

04209000 1926–2008 72 353 92.0 18.2 29.1 38.6 49.2 60.3

04212500 1925–1979 46 154 2.0 0 .1 .5 1.2 2.5

04213000 1923–2008 71 277 28.3 3.1 6.8 11.0 15.0 21.0

04213040 1969–1995 26 3.4 .3 <.1 .1 .2 .4 .5

04213075 1987–2008 21 6.9 2.2 .4 .7 1.0 1.2 1.4

04221000 1956–2008 38 398 108 19.9 30.1 40.8 54.0 69.0

04223000 1909–2008 99 1,280 349 66.3 100 139 177 220

04224775 1975–2008 33 102 32.8 7.6 10.6 13.8 17.0 20.4

04227000 1959–2008 45 306 98.6 22.9 32.4 41.6 49.8 60.8 1

Water year is defined as 12-month period beginning October 1 and ending September 30. The water year is designated by the calendar year in which it 

ends.

3

Period of record for post-regulation period.

2

Period of record for pre-regulation period.

4

Low-flow statistics computed from differing period of record can be found in Wiley (2006).
Table 5 87

Table 5. Selected mean-flow and flow-duration statistics for streamgage locations in and near Pennsylvania.—Continued

[ft3/s; cubic feet per second; --, statistic not computed; <, less than]

70-percent 

exceedance

(ft3/s)

60-percent 

exceedance

(ft3/s)

50-percent 

exceedance

(ft3/s)

40-percent 

exceedance

(ft3/s)

30-percent 

exceedance

(ft3/s)

20-percent 

exceedance

(ft3/s)

15-percent 

exceedance

(ft3/s)

10-percent 

exceedance

(ft3/s)

5-percent 

exceedance

(ft3/s)

1-percent 

exceedance

(ft3/s)

84.2 115 155 210 293 442 578 802 1,370 3,250

7.6 20.0 39.0 64.0 103 184 260 400 720 1,640

39.0 66.0 100 150 221 353 480 700 1,190 2,610

.7 1.0 1.4 2.0 2.8 4.3 5.6 7.9 14.2 34.1

2.0 2.6 3.5 4.6 6.1 8.6 11.0 14.0 23.0 58.6

105 156 216 292 397 559 692 912 1,370 3,130

325 457 626 860 1,210 1,770 2,230 3,010 4,720 10,200

28.8 40.8 55.2 73.6 99.8 139 171 225 348 815

84.4 116 157 211 290 426 541 730 1,160 2,370
88 Selected Streamflow Statistics for Streamgage Locations in and near Pennsylvania

Table 6. Comparison of streamflow statistics for 72 streamgage 

locations in Pennsylvania to previously reported streamflow 

statistics.

[7Q10, 7-day, 10-year low flow; 30Q10, 30-day, 10-year; HM, harmonic 

mean; P95, 95-percent flow-duration exceedance flow; P50, 50-percent flowduration exceedance flow; P5, 5-percent flow-duration exceedance flow; <, 

less than]

Flow 

statistic1

Conclusion of

Wilcoxon signedrank test

Change in

median flow

statistic

P-value from

Wilcoxon 

signed-rank test

7Q10 Not significant Decrease 0.081

30Q10 Significant Decrease .009

HM Significant Increase .001

P95 Not significant Decrease .346

P50 Significant Increase < .001

P5 Significant Increase < .001

1

Ehlke and Reed, 1999. 
For more information about this publication, contact:

U.S. Geological Survey

215 Limekiln Road

New Cumberland, PA 17070

http://pa.water.usgs.gov/

Document prepared by the West Trenton Publishing Service Center
Stuckey and Roland—Selected Streamflow Statistics for Streamgage Locations in and near Pennsylvania—Open-File Report 2011–1070