Table 1.

Stream attributes and polar organic chemical integrated sampler (POCIS) deployment period for Great Lakes tributaries, June–July 2016

					Major land use			POCIS deployment
Tributary name	Lake	USGS site ID	Mean daily flow (m3 s–1)	Drainage area (km2)	Agriculture (%)	Urban (%)	Other (%)	Date	Duration (days)
St. Louis	Superior	04024000	99.7	8890	2.9	2.9	95.4	6/8/2016	27
Bad	Superior	04027000	31.7	1545	5.8	3.4	91.6	6/7/2016	29
Fox	Michigan	040851385	182.6	16,514	41.4	8.4	53.1	6/8/2016	28
Manitowoc	Michigan	04085427	13.6	1343	69.6	6.3	24.1	6/7/2016	Destroyed
Milwaukee	Michigan	04087170	25.2	2240	43.2	29.9	29.2	6/7/2016	28
Indiana Harbor	Michigan	04092750	15.6	100	1.8	85.5	16.4	6/7/2016	36
St. Joseph	Michigan	04101500	89.1	9628	60.4	13.8	27.3	6/14/2016	37
Grand	Michigan	04119400	140.3	13,719	54	14.8	34	6/14/2016	37
Saginaw	Huron	04157005	137.6	15,520	44.5	12.2	44.6	6/15/2016	21
Clinton	Erie	04165500	16.3	1904	19.9	51.9	29.6	6/15/2016	36
Rouge	Erie	04166500	3.9	476	0.1	92	7.8	6/15/2016	34
Maumee	Erie	04193500	125.6	16,295	78.7	10.7	11.3	6/17/2016	21
Vermilion	Erie	04199500	5.9	679	65.6	7.5	27.4	6/14/2016	35
Cuyahoga	Erie	04208000	23.7	1836	17.5	40	43	6/1/2016	35
Genesee	Ontario	04231600	58.0	6403	45.3	6.6	52	6/2/2016	29
Oswego	Ontario	04249000	163.0	13,215	39.5	8.3	51.9	6/7/2016	29

Watershed areas (km²) were determined in a geographic information system using linework derived from the Watershed Boundary Dataset (US Department of Agriculture‐Natural Resources Conservation Service et al., 2009) and percentage major land cover classifications were based on the 2016 National Land Cover Database (Homer et al., 2020). Mean daily discharge (m³ s^–1) summarized for water year 2016 (USGS, 2020).

ID = identification; USGS = US Geological Survey.