Phosphorus Loads Entering Long Pond, A Small Embayment of Lake Ontario near Rochester, New York

Fact Sheet 128-99
Prepared in cooperation with the Monroe County Department of Health



Long Pond is one of many small, shallow embayments along the southern edge of Lake Ontario (fig. 1). These embayments are an important recreational resource and wildlife habitat; thus, maintaining their natural state is essential to their continued use. In recent decades, Long Pond and the adjacent Cranberry Pond have become hypereutrophic (overly enriched with nutrients) (Makarewicz and others, 1990) as a result of nitrogen and phosphorus transported to those waters by Northrup Creek from sources within the drainage basin.

In 1989, the Monroe County Department of Health and the Town of Greece, in cooperation with the U.S. Geological Survey (USGS), began a water-quality-monitoring program on Northrup Creek near North Greece at a site of a gaging station about 5 mi north (downstream) of the Village of Spencerport and the Spencerport wastewater-treatment plant. The program included the collection of water samples from October 1989 through September 1998 for chemical analysis and the collection of streamflow data for use in calculating phosphorus loads at the site. This fact sheet addresses the issue of concentration and loads of phosphorus in Northrup Creek, the principal tributary to Long Pond.

Northrup Creek begins just south of the Village of Spencerport in Monroe County and flows northward into Long Pond. It drains a total of 23.5 mi2 in the towns of Ogden, Parma, and Greece (fig. 1). The drainage basin contains agricultural land, housing developments, and a small amount of urban land (table 1).

Suggested Citation

Phosphorus loads entering Long Pond, a small embayment of Lake Ontario near Rochester, New York; 1999; FS; 128-99; Sherwood, Donald A.

ISSN: 2327-6932 (online)

Study Area

Table of Contents

  • Introduction
  • Phosphorus in Surface Waters
  • Phosphorus in Northrup Creek
  • Phosphorus in Long Pond
  • Conclusions
  • Selected References
Publication type Report
Publication Subtype USGS Numbered Series
Title Phosphorus loads entering Long Pond, a small embayment of Lake Ontario near Rochester, New York
Series title Fact Sheet
Series number 128-99
DOI 10.3133/fs12899
Year Published 1999
Language English
Publisher U.S. Geological Survey
Publisher location Reston, VA
Description 4 p.
Country United States
State New York
City Rochester
Google Analytic Metrics Metrics page
Additional publication details