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API DR364

1987 Edition, June 1, 1987

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The York River: A Brief Review of its Physical, Chemical and Biological Characteristics



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W/D NO S/S * 100364
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Product Details:

  • Revision: 1987 Edition, June 1, 1987
  • Published Date: June 1987
  • Status: Not Active, See comments below
  • Document Language: English
  • Published By: American Petroleum Institute (API)
  • Page Count: 108
  • ANSI Approved: No
  • DoD Adopted: No

Description / Abstract:

The objective of this paper is to provide an overview of the physical, chemical and biological characteristics of the York River, Virginia.

The York River (Figure 1) is formed by the confluence of the Mattaponi and Pamunkey rivers at West Point, Virginia. It has a drainage basin of 69,000 km2, of which nearly 70% is forested and another 22% is in cropland and pasture (Figure 2). Less than two percent of the land area is classified as urban.

Average total freshwater inflow to the river is estimated at 70 m3/sec, with flows near the fall line on the Pamunkey River at Hanover averaging 27.3 m3/sec, and at Beulaville on the Mattaponi 16.4 m3/sec (Hyer, 1977). Recorded flow extremes at Hanover range between 1,140 m3/sec to 0.3 m3/sec, with extremes at Beulaville of 480 m3/sec to 0.2 m3/sec. Discharges are higher than average from January-April and less than average from July-September.