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Phosphorus in sediment in the Kent Park Lake watershed, Johnson County, Iowa, 2014–15

Data Series 1001

Prepared in cooperation with the Johnson County Conservation Board
By:
ORCID iD
https://doi.org/10.3133/ds1001

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Abstract

Phosphorus data were collected from the Kent Park Lake watershed in Johnson County, Iowa, in 2014 and 2015 to obtain information to assist in the management of the water quality in the lake. Phosphorus concentrations were measured for sediment from several ponds in the watershed and sediment deposited in the lake. The first set of samples was collected in 2014 to understand phosphorus in several potential sources to the lake and the spatial variability in lake sediments. Phosphorus concentrations ranged from 68 to 380 milligrams per kilogram in lake sediment and from 57 to 220 milligrams per kilogram in sedimentation and dredge spoil ponds. Additional samples were collected in 2015 to determine how phosphorus concentrations vary with depth in the lake sediment. Phosphorus concentrations generally decreased with increasing depth within the lake sediment. In 2015, total phosphorus concentrations in lake sediment ranged from 50 to 340 milligrams per kilogram.

Suggested Citation

Kalkhoff, S.J., 2016, Phosphorus in sediment in the Kent Park Lake watershed, Johnson County, Iowa, 2014–15: U.S. Geological Survey Data Series 1001, 18 p., http://dx.doi.org/10.3133/ds1001.

ISSN: 2327-638X (online)

Study Area

Table of Contents

  • Acknowledgments
  • Abstract
  • Introduction
  • Methods
  • Analytical Results
  • Summary
  • References Cited

Additional publication details

Publication type:
Report
Publication Subtype:
USGS Numbered Series
Title:
Phosphorus in sediment in the Kent Park Lake watershed, Johnson County, Iowa, 2014–15
Series title:
Data Series
Series number:
1001
DOI:
10.3133/ds1001
Year Published:
2016
Language:
English
Publisher:
U.S. Geological Survey
Publisher location:
Reston, VA
Contributing office(s):
Iowa Water Science Center
Description:
vi, 18 p.
Time Range Start:
2014-01-01
Country:
United States
State:
Iowa
County:
Johnson County
Online Only (Y/N):
Y
Additional Online Files (Y/N):
N