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	Annual Toxics Summary Bakersfield-5558 California Avenue FAQs Trichloroethylene parts per billion

Read About Estimated Risk

Year	Months Present	Minimum	Median	Mean	90th Percentile	Maximum	Standard Deviation	Number of Observations	Detection Limit	Estimated Risk
2024		0.01	0.01	*	0.01	0.01	0.000	15	0.02	*
2023		0.01	0.01	*	0.01	0.01	0.000	25	0.02	*
2022		0.01	0.01	0.010	0.01	0.02	0.002	29	0.02	0.3
2021		0.01	0.01	*	0.01	0.01	0.000	23	0.02	*
2020		0.01	*	*	*	0.01	0.000	7	0.02	*
2019		0.01	0.01	0.013	0.01	0.09	0.014	29	0.02	0.4
2018		0.01	0.01	0.010	0.01	0.01	0.000	36	0.02	0.3
2017		0.01	0.01	0.012	0.01	0.07	0.011	30	0.02	0.4
2016		0.01	0.01	0.011	0.01	0.03	0.003	31	0.02	0.3
2015		0.01	0.01	0.010	0.01	0.02	0.002	30	0.02	0.3
2014		0.01	0.01	*	0.01	0.03	0.004	16	0.02	*
2013		0.01	0.01	*	0.01	0.01	0.000	23	0.02	*
2012		0.01	0.01	0.010	0.01	0.01	0.000	33	0.02	0.3
2011		0.01	0.01	0.014	0.03	0.07	0.013	33	0.02	0.4
2010		0.01	0.01	0.010	0.01	0.03	0.003	30	0.02	0.3
2009		0.01	0.01	0.010	0.01	0.01	0.000	34	0.02	0.3
2008		0.01	0.01	0.010	0.01	0.01	0.000	33	0.02	0.3
2007		0.01	0.01	0.010	0.01	0.01	0.000	32	0.02	0.3
2006		0.01	0.01	0.010	0.01	0.02	0.002	30	0.02	0.3
2005		0.01	0.01	0.012	0.01	0.05	0.008	31	0.02	0.4
2004		0.01	0.01	*	0.01	0.02	0.002	25	0.02	*
2003		0.01	0.01	0.020	0.03	0.19	0.034	29	0.02	0.6
2002		0.01	0.01	0.012	0.02	0.03	0.006	30	0.02	0.4
2001		0.01	0.02	0.021	0.03	0.08	0.015	31	0.02	0.7
2000		0.01	0.01	0.021	0.05	0.07	0.018	30	0.02	0.6
1999		0.01	0.01	*	0.03	0.04	0.010	23	0.02	*
1998		0.01	0.01	*	0.02	0.03	0.006	28	0.02	*
1997		0.01	0.01	0.017	0.02	0.19	0.032	32	0.02	0.5
1996		0.01	0.01	0.089	0.01	2.5	0.442	32	0.02	3
1995		0.01	0.01	0.011	0.01	0.03	0.005	32	0.02	0.3
1994		0.01	0.01	*	0.04	0.08	0.018	23	0.02	*
1993		*	*	*	*	*	*	0	*	*
1992		*	*	*	*	*	*	0	*	*
1991		*	*	*	*	*	*	0	*	*
1990		*	*	*	*	*	*	0	*	*
1989		*	*	*	*	*	*	0	*	*

	Notes:	Values below the Limit of Detection (LoD) assumed to be ½ LoD. Means and risks shown only for years with data in all 12 months. "*" means there was insufficient or no data available to determine the value.