Sampling Sites

SAMPLING SITES

Grab samples from the water column are collected at the following sites. Exact locations are denoted by [latitude, longitude].

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Sampling at the following sites was initiated in 2000:

  • Salt Creek - Prairie Path Bridge
    Prairie Path Bridge at the corner of West Avenue and Randolph Street in Elmhurst [N41º 53.169' , W87º 57.571']. Denoted "SC1". 

  • Salt Creek - Eldridge Park
    Eldridge Park bridge in Elmhurst [N41º 51.962' , W87º 57.162']. Denoted "SC2".

  • East Branch DuPage River - Churchill Woods Forest Preserve
    Churchill Woods Forest Preserve in Glen Ellyn. Sampling site was previously the shore of the river's south channel; in April 2006, it was moved to the bridge on the north channel [N41º 53.191' , W88º 2.555']. Denoted "EB1".

  • East Branch Dupage River - Butterfield Rd.
    Pedestrian bridge on north shoulder of Butterfield Road approximately ¼ mile east of Route 53, in Downers Grove [N41º 49.912' , W88º 2.858']. Denoted "EB2".

  • East Branch DuPage River - Burlington Ave.
    Sampling site was previously the shore near Ogden Avenue and Route 53; in April 2000, it was moved to the shore approximately fifty yards south of the BNSF bridge (intersection of Dumoulin and Burlington avenues). In Lisle [N41º 47.707' , W88º 4.789']. Denoted "EB3".

  • East Branch DuPage River - St. Joseph's Creek
    Shore of St. Joseph's Creek, approximately fifty yards south of Ogden Avenue in Lisle [N41º 48.014' , W88º 4.113']. Denoted "EB4".

     

Sampling at the following sites was initiated in 2001:

  • West Branch DuPage River - Beecher Ave.
    Beecher Avenue bridge near Lions Park (aka Riverside Park) in Winfield [N41º 52.160' , W88º 9.781']. Denoted "WB1".

  • West Branch DuPage River - Warrenville Grove
    Prior to its reconstruction in October 2007, sampling site was on the Prairie Path Bridge in the Warrenville Grove Forest Preserve (near intersection of Butterfield and Batavia roads), but has since relocated approximately one-third of a mile downstream to the concrete bridge in Warrenville Grove park. In Warrenville [N41º 49.256' , W88º 10.337']. Denoted "WB2".

  • West Branch DuPage River - Centennial Park
    Wood covered bridge connecting Riverwalk to Rotary Hill in Naperville [N41º 46.265' , W88º 9.314']. Denoted "WB3".

 

Dissolved Oxygen testing at the following sites was initiated in 2003:

  • West Branch DuPage River - Beecher Ave. (same as WB1)
  • Klein Creek - Prairie Path Bridge [N41º 53.449' , W88º 9.376']

 

Thorium testing at the following site was initiated in 2005:

 

  • West Branch DuPage River - Warrenville Grove (same as WB2)