Trends in surface-water quality at selected National Stream Quality Accounting Network (NASQAN) stations, in Michigan

Section: Relation Of Lake Water Quality To Land Covermentioning

confidence: 99%

Water-quality characteristics of Michigan's inland lakes, 2001-10

Fuller¹,

Taricska²

2012

“…Blumer (1993) published results for stream water-quality analyses for 10 monitoring stations throughout Michigan from 1987 to 1989 and trend analyses for 16 monitoring stations from 1975 to 1989. Syed and Fogarty (2005) published results of water-quality trend analyses for nine streams in Michigan sampled from 1978 to 1995 as part of the USGS National Stream Quality Accounting Network (NASQAN). Results from these studies showed both upward and downward trends in concentrations of several water-quality constituents during the study periods.…”

Section: Previous Studiesmentioning

confidence: 99%

Analysis of Water-Quality Trends for Selected Streams in the Water Chemistry Monitoring Program, Michigan, 1998-2005

Hoard¹,

Fuller²,

Fogarty³

2009

Self Cite

In 1998, the Michigan Department of Environmental Quality and the U.S. Geological Survey began a long-term monitoring program to evaluate the water quality of most watersheds in Michigan. Major goals of this Water-Chemistry Monitoring Program were to identify streams exceeding or not meeting State or Federal water-quality standards and to assess if constituent concentrations reflecting water quality in these streams were increasing or decreasing over time. As part of this program, water-quality data collected from 1998 to 2005 were analyzed to identify potential trends. Sixteen water-quality constituents were analyzed at 31 sites across Michigan, 28 of which had sufficient data to analyze for trends. Trend analysis on the various water-quality data was done using the uncensored Seasonal Kendall test within the computer program ESTREND. The most prevalent trend detected throughout the state was for chloride. Chloride trends were detected at 8 of the 28 sites; trends at 7 sites were increasing and the trend at 1 site was decreasing. Although no trends were detected for various nitrogen species or phosphorus, these constituents were detected at levels greater than the U.S. Environmental Protection Agency recommendations for nutrients in water. The results of the trend analysis will help to establish a baseline to evaluate future changes in water quality in Michigan streams. The water land-use category is area covered by large bodies of water like lakes or large rivers. Much of the land use identified in watersheds in the Upper Peninsula and northern Lower Peninsula of Michigan is comprised of forest, wetland, and other open or undeveloped land coverage. In contrast, the southern Lower Peninsula of Michigan is primarily agricultural and urban (fig. 2).

“…Data from nine of the sites did not fit the requirements for trend analysis. Of the remaining four sites, three were in the Clinton River Basin and one in the Black River Basin; data from the Clinton River at Moravian Drive at Mount Clemens site (04165500) had recently been analyzed for trends by Syed and Fogarty (2005) with the same trend-analysis procedures and programs used for this report. Data from the Black River at Wadhams Road Bridge, Kimball Township (740153); the Clinton River at Hamlin Road Bridge, Avon Township (630252); and the Clinton River at Gratiot Avenue in Mount Clemens (500233) were examined for longterm trends.…”

Section: Water-quality Trends In the Black And Clinton River Basinsmentioning

confidence: 99%

“…Twenty-five parameters from the Clinton River at Moravian Drive at Mount Clemens for the period 1973 through 1995 were examined for trends by Syed and Fogarty (2005) (table 8). They found significant positive trends for pH, dissolved calcium, dissolved magnesium, dissolved chloride, and hardness; and significant negative trends for dissolved sulfate, total ammonia, total ammonia plus organic nitrogen, total nitrite plus nitrate, total nitrogen, and total phosphorus at p = 0.05.…”

Section: Water-quality Trends In the Black And Clinton River Basinsmentioning

confidence: 99%

“…[USK, uncensored Seasonal Kendall test; Cross reference between site identifier and map number are in Appendix 1-4] Water-quality trends at Clinton River site 04165500, 1973-95. [FromSyed and Fogarty (2005); uncensored Seasonal Kendall test applied to all parameters; --, data not provided; Cross reference between site identifier and map number are in Appendix 1-4] Water-quality trends at Clinton River site500233, 1974-93. [Uncensored Seasonal Kendall test applied to all parameters; Cross reference between site identifier and map number are in…”

mentioning

confidence: 99%

See 1 more Smart Citation

Water quality of the St. Clair River, Lake St. Clair, and their U.S. tributaries, 1946-2005

Healy¹,

Chambers²,

Rachol³

et al. 2007

Temperature in degrees Celsius (°C) may be converted to degrees Fahrenheit (°F) as follows: °F = (1.8×°C)+32 Specific conductance is given in microsiemens per centimeter at 25 degrees Celsius (µS/cm at 25°C). Concentrations of chemical constituents in water are given in milligrams per liter (mg/L). Concentrations of bacteria in water are given in colony-forming units per 100 milliliters (CFU/100 mL).