Physical, chemical, and biological data for selected streams in Chester County, Pennsylvania, 1995-97

Abstract

Physical, chemical, and biological data were collected at 51 sampling sites in Chester County, Pa., from 1970 through 1997 as part of the Stream Conditions of Chester County Program. This report presents data collected from 43 sites from 1995 through 1997 that constitute a continuation of the program. Physical data include water temperature, instantaneous stream discharge, pH, alkalinity, specific conductance, and dissolved oxygen. Chemical data collected include laboratory determinations of nutrients and major ions in whole water samples and selected metals, pesticides, gross polychlorinated biphenyls (PCB's), gross polychlorinated napthalenes (PCN's), and total carbon in stream-sediment samples. The biological data include benthic-macroinvertebrate populations. The data are presented without interpretation. Chester County is undergoing urbanization as agricultural land is converted to residential developments, commercial areas, and industrial and corporate parks. The major goal of the Stream Conditions of Chester County Program is to further the understanding of stream changes in response to urbanization.

Evaluation of long-term trends in hydrologic and water-quality conditions, and estimation of water budgets through 2013, Chester County, Pennsylvania

“…The biological data used for statistical analysis were compiled from four USGS data reports. Complete analytical and biological results are given by Moore (1989) for 1969-80, Reif (1999) for 1981-94, Reif (2000) for 1995-97, and Reif (2004) for 1998-2000. Data collected from 2001 to 2013 were published in the USGS annual water-data reports for Pennsylvania (U.S. Geological Survey, 2002-13).…”

A benthic-macroinvertebrate index of biotic integrity and assessment of conditions in selected streams in Chester County, Pennsylvania, 1998-2009

“…Complete analytical and biological results are given by Moore (1989) for 1969to 1980, Reif (1999) for 1981, Reif (2000) for 1995to 1997, and Reif (2003 for 1998 to 2000. Data collected from 2001 to 2009 were published in the USGS annual water-data reports for Pennsylvania (U.S. Geological Survey, 2002Survey, -2010.…”

Assessment of stream quality using biological indices at selected sites in the Brandywine Creek basin, Chester County, Pennsylvania, 1981-97

“…Benthicmacroinvertebrate, water-chemistry, and habitat data were collected each year in October or November during base-flow conditions (Reif, 1999;2000). Using these data, Reif (2002) evaluated the overall water-quality condition of Chester County streams.…”