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. Author manuscript; available in PMC: 2017 May 1.

Published in final edited form as: Chemosphere. 2016 Feb 21;150:239–247. doi: 10.1016/j.chemosphere.2016.01.125

Table 2.

Temporal changes in TCE concentrations in monitoring wells up gradient, inside and down gradient of direct-push candles and candles in wells.

		Monitoring Wells^†
Sampling Date		Direct-Push Candles		Candles in Wells
Sampling Date	Position^†	S1	S2	S3	S4
		µg L⁻¹		µg L⁻¹
7/25/2010	Up Gradient	378.0	432.4	215.4	147.6
10/10/2010
07/6/2011		850.8	768.6	265.5	233.6
10/13/2011		864.2	619.5	134.5	166.4
11/23/2013		761.7	656.4	461.0	230.4
10/22/2014		751.8	727.8	558.5	351.9
10/20/2015		610.5	523.9	373.5	203.1
		S5	S6	S7	S8

07/25/2010	Inside Barrier	469.0	525.8	315.0	169.8
10/10/2010		425.9	504.4	144.7	99.3
07/06/2011		699.8	595.0	53.9	136.5
10/13/2011		632.1	554.9	33.5	54.3
11/23/2013		808.1	805.4	14.5	202.1
10/22/2014		611.3	515.6	2.3	217.0
10/20/2015		580.2	498.8	5.7	116.4
		S9	S10	S11	S12

07/25/2010	Down Gradient	566.0	377.2	371.0	115.9
10/10/2010
07/06/2011		282.0	526.6	249.0	87.4
10/13/2011		289.9	514.2	136.9	25.6
11/23/2013		666.3	640.9	29.2	110.9
10/22/2014		512.7	540.9	2.4	89.1
10/20/2015		343.7	571.4	6.4	58.4
					C2–18
10/28/2009	Down Gradient				436.0
11/03/1010					174.0
11/16/2011					96.0
03/27/2014					15.4
10/22/2014					27.3
10/20/2015					60.0

^†

See Figure 1 for well locations