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Water-Year Summary for Site 01465500

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Available Parameters
00010 Temperature, water(Max.,Min.,Mean)  
00060 Discharge(Mean)  
00060 Discharge(Mean)  
00095 Specific cond at 25C(Max.,Mean,Min.)  

Water year 2024: 2024-10-01 to 2025-09-30
 
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USGS Water-Year Summary 2024
01465500 NESHAMINY CREEK NEAR LANGHORNE, PA
LOCATION - Lat 40°10'26", long 74°57'26" referenced to North American Datum of 1927, Bucks County, PA, Hydrologic Unit 02040201, on left bank at bridge on State Highway 213, 0.3 mi downstream from Mill Creek, and 1.7 mi west of Langhorne.
DRAINAGE AREA - 210 mi².
REVISIONS HISTORY - WSP 1332: 1949. WSP 1432: 1936-37. WDR PA-83-1: 1982(P).
SURFACE-WATER RECORDS
PERIOD OF RECORD - October 1934 to current year.
GAGE - Water-stage recorder and crest-stage gage. Datum of gage is 39.54 ft above North American Vertical Datum of 1988. Prior to March 10, 2022, the datum was reported as 40.57 ft above National Geodetic Vertical Datum of 1929.   Satellite and landline telemetry at station.
COOPERATION - Station established and maintained by the U.S. Geological Survey. Funding for this station is provided by the Bucks County Commissioners, the Pennsylvania Department of Environmental Protection, and the U.S. Geological Survey.
REMARKS - Some regulation at low flow by mills above station. Flow regulated by upstream reservoirs on Little Neshaminy Creek, Robin Run, Pine Run, North Branch Neshaminy Creek, and Core Creek (combined flood control capacity, about 9,560 acre-ft). Occasional regulation by Springfield Lake, capacity, 2,000 acre-ft, completed in 1934; no significant regulation except during period May 1934 to January 1944, when the lake was filling, and in September 1949, July 1954, July through October 1957, and September, October 1961. Interceptor sewer installed along left bank during May and June 1966. Records for water years 2014-2022 are rated fair except for estimated discharge, which is poor.
EXTREMES OUTSIDE PERIOD OF RECORD - Flood of Aug. 23, 1933 reached a stage of 17.3 ft, from floodmark, discharge, about 30,000 ft³/s, from rating curve extended above 17,300 ft³/s on basis of slope-area measurement of peak flow at 22.84 ft.
WATER-QUALITY RECORDS
PERIOD OF RECORD - April 2002 to current year.
PERIOD OF DAILY RECORD - December 2018 to current year
COOPERATION - Water-quality samples were collected as part of the Pennsylvania Department of Environmental Protection Water-Quality Network (WQN) with cooperation from the Pennsylvania Department of Environmental Protection. Funding for the operation of the continuous monitor is provided by the U.S. Geological Survey.
INSTRUMENTATION - Water temperature and specific conductance probe interfaced with a data collection platform
REMARKS -

As of October 2013, results from discrete water quality samples collected at this site are available through the U.S. Geological Survey National Water Information System web interface on the "Water Quality for the Nation" webpage. Analyses for pH, water temperature, specific conductance, and dissolved oxygen were performed on site. All other sample analyses were performed at the Pennsylvania Department of Environmental Protection laboratory in Harrisburg, Pa. Occasionally, values for filtered parameters may exceed values for the corresponding unfiltered parameter. These results are within the limits of analytical precision and methods.

Beginning in water year 2019, water quality records are not rated as "excellent", "good", "fair", or "poor".

EXTREMES FOR PERIOD OF RECORD -

WATER TEMPERATURE: maximum, 32.4 degC on July 23, 2022; minimum, -0.3 degC on many days. SPECIFIC CONDUCTANCE: maximum, 1280 uS/cm on Aug 31, 2022; minimum, 68 uS/cm on May 30, 2019.