The Pamunkey and Mattaponi Rivers join below the Pamunkey River monitoring station to form the York River, which flows to Chesapeake Bay. The Pamunkey River monitoring station is located near Hanover, Va., and receives streamflow from about 45 percent of the 2,400 mi2 York River Basin. The Pamunkey River contributes about 2 percent of the total streamflow, less than 1 percent of the total nitrogen load, and 2 percent of the total phosphorus load delivered annually from the nontidal part of the nine tributary basins to Chesapeake Bay. The river has the third smallest yield of total nitrogen and the fourth smallest yield of total phosphorus. The basin is relatively flat, contains expanses of forested wetlands and marshes, and receives nutrients from both point and nonpoint sources, including agricultural runoff and discharge from wastewater treatment plants.
| Station Number | 01673000 |
| Latitude (ddmmss) | 374603 |
| Longitude (ddmmss) | 771957 |
| County | Hanover |
| Hydrologic Unit Code | 02080106 |
| Basin Name | York |
| Drainage Area (mi2) | 1,081 |
| Datum (feet above NGVD) | 14.72 |
| Period of Project Data Collection | July 1989 - Present |
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URL://va.water.usgs.gov/chesbay/RIMP/01673000.html
Last modified: 09/20/01 10:03:54 AM