• Nutrient and sediment loss from a Niagara County watershed : the east branch of Twelvemile Creek, May 1998 to May 2000

      Makarewicz, Joseph C.; Lewis, Theodore W.; The College at Brockport (2000-07-01)
      Discharge and nutrient loss from a Niagara County tributary, Twelvemile Creek, was intensely monitored for two consecutive years by automated gauging and sampling techniques. This report focuses on the two annual cycles monitored (19 May 1998 to 18 May 1999 [Year 1] and 19 May 1999 to 17 May 2000 [Year 2]). The sampling regime allows an accurate measurement of discharge, nutrient and soil loss from a watershed during hydrometeorological events and nonevent conditions. Discharge and concentrations of nitrate, total phosphorus, sodium, total suspended solids, and total kjeldahl nitrogen were measured and converted into the amount of material lost from the watershed or loading to Lake Ontario.
    • Twelvemile Creek Niagara County, New York

      Makarewicz, Joseph C.; Nowak, Matthew J.; The College at Brockport (2010-01-01)
      The east branch of Twelvemile Creek (69 mi2) flows through northern Niagara County to its mouth at Lake Ontario 12 miles east of the Niagara River, near the village of Wilson, New York. From fall through spring, good runs of steelhead and brown trout with the occasional Chinook and Coho salmon occur into the creek. Agriculture, especially row crop farming, is predominant within the watershed, though natural protected land is also plentiful. The Wilson-Tuscarora State Park provides a buffer between the creek and agriculture immediately around the mouth of the creek, while upstream farms directly line the creek. Nuisance algae, bacterial abundance, and algal mat development along the southern shoreline of Lake Ontario are major causes of beach closings, fouling the nearshore waters and limiting water recreation. This short report provides a synopsis of data collected monthly from May through September (2003 to 2009) on the water quality of Twelvemile Creek and the lakeside (swimmable depth) of Lake Ontario near the mouth of the creek.