Water Resources of Monroe County, New York, Water Years 1989-93, with Emphasis on Water Quality in the Irondequoit Creek Basin Part 1. Water-Resources Data U.S. GEOLOGICAL SURVEY Open-File Report 97-587 Prepared in cooperation with the Monroe County Department of Health Water Resources of Monroe County, New York, Water Years 1989-93, with Emphasis on Water Quality in the Irondequoit Creek Basin Part 1. Water-Resources Data By DONALD A. SHERWOOD Prepared in cooperation with the Monroe County Department of Health U.S. GEOLOGICAL SURVEY OPEN-FILE REPORT REPORT 97-587 Ithaca, New York 1997 i BRUCE BABBITT, Secretary U.S. GEOLOGICAL SURVEY Mark Schaefer, Acting Director Any use of trade, product, or firm names in this publication is for descriptive purposes only and does not imply endorsement by the U.S. Geological Survey For additional information Copies of this report can be write to: purchased from: Subdistrict Chief U.S. Geological Survey U.S. Geological Survey Branch of Information Services 903 Hanshaw Road Box 25286 Ithaca, NY 14850 Denver, CO 80225-0286 ii Contents CONTENTS Abstract.......................................................................................................................................................... 1 Introduction.................................................................................................................................................... 1 Purpose and Scope ................................................................................................................................... 1 Data Availability...................................................................................................................................... 2 Acknowledgments.................................................................................................................................... 2 Description of Study area and Summary of Hydrologic Conditions ............................................................. 2 Hydrologic Features................................................................................................................................. 2 Hydrologic Conditions, 1989-93.............................................................................................................. 3 Surface water..................................................................................................................................... 4 Discharge.................................................................................................................................... 5 Chemical Quality........................................................................................................................ 6 Ground Water.................................................................................................................................... 6 Water Levels..................................................................................................................................... 14 Chemical Quality........................................................................................................................ 14 Temperature................................................................................................................................ 16 Precipitation ...................................................................................................................................... 16 Quantity...................................................................................................................................... 17 Chemical Quality........................................................................................................................ 17 Data Compilation........................................................................................................................................... 17 Surface Water........................................................................................................................................... 19 Downstream-Order Station-Identification System ............................................................................ 19 Stage and Discharge.......................................................................................................................... 19 Computation Methods ................................................................................................................ 19 Data Format (Surface-Water Stations)........................................................................................ 20 Accuracy and Precision of Records ............................................................................................ 22 Chemical Quality .............................................................................................................................. 22 Continuing-Record and Partial-Record Stations......................................................................... 22 Field and Laboratory Methods....................................................................................................22 Data Format................................................................................................................................ 23 Ground Water........................................................................................................................................... 24 Latitude and Longitude Identification System.................................................................................. 24 Field and Laboratory Methods.......................................................................................................... 24 Water Levels............................................................................................................................... 25 Water Temperature..................................................................................................................... 25 Chemical Quality........................................................................................................................ 25 Data Format...................................................................................................................................... 25 Precipitation Quantity and Quality........................................................................................................... 26 Methods............................................................................................................................................. 26 Data Format....................................................................................................................................... 26 Quality Assurance/Quality Control................................................................................................................ 26 Streamflow Measurements ....................................................................................................................... 26 Water-Quality Samples ............................................................................................................................ 27 Statistical Methods................................................................................................................................... 27 Split Samples ........................................................................................................................................... 27 Standard Reference Water-Sample Program ............................................................................................ 29 Selected References ....................................................................................................................................... 30 Data From Surface-Water, Ground-Water, and Precipitation Stations in Monroe County............................. 32 Surface-Water Stations............................................................................................................................. 33 Partial-Record andMiscellaneous-Record Sites....................................................................................... 89 Ground-Water Stations............................................................................................................................. 116 Precipitation Stations ............................................................................................................................... 191 Contents iii FIGURES 1. Map of Monroe County showing location of streamflow-gaging stations and principal geographic features ............................................................................................................................. 3 2. Map showing location of gages within Irondequoit Creek watershed.................................................. 4 3. Hydrographs for Allen Creek near Rochester showing monthly mean discharge throughout given water years with median of monthly mean discharges for period of record, and daily discharges throughout given water years with median discharge for 1970-88 period of record: A. Water year 1989.............................................................................................................................. 7 B. Water year 1990.............................................................................................................................. 8 C. Water year 1991.............................................................................................................................. 9 D. Water year 1992.............................................................................................................................