DNR Sampling Sites

In 1998 the Missouri Department of Natural Resources (MDNR) placed approximately 14 miles of Hinkson Creek (Boone County) on its list of impaired waters designated under Section 303(d) of the Clean Water Act. In the Total Maximum Daily Load(TMDL) document prepared for this watershed, the pollutant(s) causing the impairment were listed as unknown, and the sources of this pollution are listed as “urban runoff” and “urban nonpoint source” (USEPA 2011). As an alternative to the strict adherence to the requirements outlined in the TMDL, a collaborative adaptive management plan was developed among the stakeholders that included the city of Columbia, Boone County, the University of Missouri-Columbia, Region VII of the United States Environmental Protection Agency (USEPA), and MDNR, among other entities. As a partner in the collaborative adaptive management process, MDNR agreed to conduct a three-year biological study of Hinkson Creek beginning in 2012.

Agricultural and urban land uses predominate in the Hinkson Creek watershed, and have likely resulted in increased sedimentation in the system, removal of riparian buffer vegetation, and alteration of the natural hydrology of the stream (Lenat and Crawford 1994; Paul and Meyer 2001). Several studies of the physical, chemical, and biological conditions of the creek have presented evidence of stream degradation in various segments of the stream (Parris 2000; MDNR 2002, 2004, 2005, 2006; Nichols 2012). In 34 macroinvertebrate samples collected from Hinkson Creek between fall 2001 and spring 2006, 14 were classified as only partially supporting of aquatic life. The majority of these (12 of 14, or 86%) were collected in the portion of the stream downstream of the I-70 crossing to the Columbia city limit just downstream of the Scott Boulevard crossing. These samples represent the subset of the Hinkson Creek macroinvertebrate community considered to be within an urban setting; upstream of the I-70 crossing the creek is within a rural –primarily agricultural – setting.

Hinkson Creek Station #1 (SE ¼ sec. 29, T. 48 N., R. 13 W.) is located downstream of the Scott Boulevard bridge. Geographic coordinates at the upstream terminus of the station are UTME 551970, UTMN 4307414.

Hinkson Creek Station #2 (NW ¼ sec. 27, T. 48 N., R. 13 W.) is located upstream of the MKT Trail bridge in the vicinity of Twin Lakes Recreational Area. Geographic coordinates at the upstream terminus of this station are UTME 553966, UTMN 4308301.

Hinkson Creek Station #3 (NE ¼ sec. 27, T. 48 N., R. 13 W.) is located downstream of the Forum Boulevard bridge. Geographic coordinates of the upstream terminus of the station are UTME 555061, UTMN 4308249.

Hinkson Creek Station #3.5 (SW ¼ sec. 24, T. 48 N., R. 13 W.) is located upstream of the Recreation Drive culvert crossing (just east of Providence Road). Geographic coordinates of the downstream terminus of the station are UTME 557571, UTMN 4309043.

Hinkson Creek Station #4 (NW ¼ sec. 19, T. 48 N., R. 12 W.) is downstream of the Rock Quarry Road bridge. Geographic coordinates of the downstream terminus of the station are UTME 558533, UTMN 4309388.

Hinkson Creek Station #5 (NW ¼ sec. 8, T. 48 N., R. 12 W.) is located upstream of the most upstream footbridge of Capen Park. Geographic coordinates of the upstream terminus of the station were UTME 559135, UTMN 4309518. Hinkson Creek Station #5.5 (NE ¼ sec. 18, T. 48 N., R. 12 W.) was located downstream of the Green Valley Drive bridge (just south of Broadway Street). Geographic coordinates of the upstream terminus of the station are UTME 560081, UTMN 4311180.

Hinkson Creek Station #6 (SW ¼ sec. 8, T. 48 N., R. 12 W.) is located upstream from the East Walnut Street bridge. Geographic coordinates of the downstream terminus of the station are UTME 560767, UTMN 4312309.

Hinkson Creek Station #6.5
(SE ¼ sec. 5, T. 48 N., R. 12 W.) is located upstream of the Highway 63 connector (upstream of the trailer park east of the connector and behind Home Depot). Geographic coordinates in the downstream portion of the station are UTME 561861, UTMN 4313714.

Hinkson Creek Station #7 (NW ¼ sec. 27, T. 49 N., R. 12 W.) is located upstream of the Hinkson Creek Road/Wyatt Lane bridge. Geographic coordinates at the upstream terminus of the station are UTME 564140, UTMN 4317670.

Hinkson Creek Station #8 (SE ¼ sec. 15, T. 49 N., R. 12 W.) is located downstream of the Rogers Road bridge. Geographic coordinates at the downstream terminus of the station are UTME 565212, UTMN 4319627.