Chloroform

City of Stockton

Chloroform, one of the total trihalomethanes (TTHMs), is formed when chlorine or other disinfectants are used to treat drinking water. Chloroform and other disinfection byproducts increase the risk of cancer and may cause problems during pregnancy. Read More.

In addition to tap water disinfection, chloroform pollution in the environment also comes from industrial discharges from pulp and paper mills, and from urban wastewater effluent. Human studies show that chloroform damages the kidneys, liver and central nervous system. In animals, chloroform causes infertility, birth defects and cancer.

Click here to read more about disinfection byproducts.

MORE ABOUT THIS CONTAMINANT

479

Samples

Samples exceeding legal limit (MCL)

460

Samples exceeding
health guidelines

Testing results - average by year

Year	Average result	Samples taken	Detections	Range of results
2014	23.7 ppb	76	75	ND - 53.0 ppb
2015	18.4 ppb	76	67	ND - 60.0 ppb
2016	20.7 ppb	80	76	ND - 62.0 ppb
2017	21.2 ppb	76	73	ND - 83.2 ppb
2018	20.3 ppb	76	76	6.70 ppb - 63.0 ppb
2019	30.2 ppb	95	93	ND - 75.1 ppb

ppb = parts per billion

State and national drinking water standards and health guidelines

EWG Health Guideline 0.4 ppb

The EWG Health Guideline of 0.4 ppb for chloroform was proposed in 2018 by the California Office of Environmental Health Hazard Assessment as a one-in-a-million lifetime risk of cancer. Values greater than one-in-a-million cancer risk level can result in increased cancer cases above one in a million people.

ppb = parts per billion

All test results

Date	Lab ID	Result
2014-01-13	5810-900-0828	20.0 ppb
2014-01-13	5810-901-0905	1.90 ppb
2014-01-13	5810-902-1020	16.0 ppb
2014-01-13	5810-907-1127	19.0 ppb
2014-01-13	5810-913-1100	19.0 ppb
2014-01-14	5810-914-0843	5.60 ppb
2014-01-14	5810-915-0924	5.30 ppb
2014-01-14	5810-916-0948	7.60 ppb
2014-01-14	5810-917-1019	6.40 ppb
2014-01-14	5810-918-1050	6.30 ppb
2014-01-15	5810-903-0753	6.20 ppb
2014-01-15	5810-904-0838	15.0 ppb
2014-01-15	5810-905-0900	13.0 ppb
2014-01-15	5810-906-0959	11.0 ppb
2014-01-15	5810-908-0808	24.0 ppb
2014-01-15	5810-909-0912	23.0 ppb
2014-01-15	5810-910-0929	29.0 ppb
2014-01-15	5810-911-1002	25.0 ppb
2014-01-15	5810-912-0946	24.0 ppb
2014-04-16	5810-900-0743	29.0 ppb
2014-04-16	5810-901-0800	22.0 ppb
2014-04-16	5810-902-0819	25.0 ppb
2014-04-16	5810-903-0815	33.0 ppb
2014-04-16	5810-904-0907	34.0 ppb
2014-04-16	5810-905-0929	36.0 ppb
2014-04-16	5810-906-0957	25.0 ppb
2014-04-16	5810-907-1020	27.0 ppb
2014-04-16	5810-908-1114	37.0 ppb
2014-04-16	5810-909-1136	32.0 ppb
2014-04-16	5810-910-1228	36.0 ppb
2014-04-16	5810-911-1210	27.0 ppb
2014-04-16	5810-912-1151	33.0 ppb
2014-04-16	5810-913-0833	23.0 ppb
2014-04-16	5810-914-0846	16.0 ppb
2014-04-16	5810-915-0900	17.0 ppb
2014-04-16	5810-916-0916	48.0 ppb
2014-04-16	5810-917-0934	31.0 ppb
2014-04-16	5810-918-0800	20.0 ppb
2014-07-16	5810-900-0740	2.80 ppb
2014-07-16	5810-901-0752	ND
2014-07-16	5810-902-0815	8.10 ppb
2014-07-16	5810-903-0814	3.60 ppb
2014-07-16	5810-904-0845	21.0 ppb
2014-07-16	5810-905-0900	32.0 ppb
2014-07-16	5810-906-0926	15.0 ppb
2014-07-16	5810-907-1020	29.0 ppb
2014-07-16	5810-908-0938	26.0 ppb
2014-07-16	5810-909-1005	20.0 ppb
2014-07-16	5810-910-1020	23.0 ppb
2014-07-16	5810-911-1057	25.0 ppb
2014-07-16	5810-912-1040	28.0 ppb
2014-07-16	5810-913-0830	4.20 ppb
2014-07-16	5810-914-0852	2.40 ppb
2014-07-16	5810-915-0908	15.0 ppb
2014-07-16	5810-916-0940	20.0 ppb
2014-07-16	5810-917-1003	43.0 ppb
2014-07-16	5810-918-0800	18.0 ppb
2014-10-15	5810-900-0802	29.0 ppb
2014-10-15	5810-901-0906	44.0 ppb
2014-10-15	5810-902-0850	34.0 ppb
2014-10-15	5810-903-0829	32.0 ppb
2014-10-15	5810-904-0849	53.0 ppb
2014-10-15	5810-905-0905	40.0 ppb
2014-10-15	5810-906-1045	26.0 ppb
2014-10-15	5810-907-1106	24.0 ppb
2014-10-15	5810-908-0948	27.0 ppb
2014-10-15	5810-909-1022	30.0 ppb
2014-10-15	5810-910-1049	39.0 ppb
2014-10-15	5810-911-1042	33.0 ppb
2014-10-15	5810-912-1031	38.0 ppb
2014-10-15	5810-913-0815	36.0 ppb
2014-10-15	5810-914-0921	22.0 ppb
2014-10-15	5810-915-0935	18.0 ppb
2014-10-15	5810-916-1017	31.0 ppb
2014-10-15	5810-917-0955	42.0 ppb
2014-10-15	5810-918-0801	38.0 ppb
2015-01-14	5810-900-0750	37.0 ppb
2015-01-14	5810-901-0813	8.20 ppb
2015-01-14	5810-902-0832	41.0 ppb
2015-01-14	5810-903-0817	39.0 ppb
2015-01-14	5810-904-0844	29.0 ppb
2015-01-14	5810-905-0915	41.0 ppb
2015-01-14	5810-906-1050	32.0 ppb
2015-01-14	5810-907-1117	43.0 ppb
2015-01-14	5810-908-1003	43.0 ppb
2015-01-14	5810-909-1040	46.0 ppb
2015-01-14	5810-910-1115	39.0 ppb
2015-01-14	5810-911-1210	23.0 ppb
2015-01-14	5810-912-1140	37.0 ppb
2015-01-14	5810-913-0854	25.0 ppb
2015-01-14	5810-914-0919	26.0 ppb
2015-01-14	5810-915-0939	25.0 ppb
2015-01-14	5810-916-0952	37.0 ppb
2015-01-14	5810-917-1021	40.0 ppb
2015-01-14	5810-918-0749	35.0 ppb
2015-04-15	5810-900-0820	6.10 ppb
2015-04-15	5810-901-0842	ND
2015-04-15	5810-902-0914	8.40 ppb
2015-04-15	5810-903-0850	19.0 ppb
2015-04-15	5810-904-0945	34.0 ppb
2015-04-15	5810-905-0930	32.0 ppb
2015-04-15	5810-906-1157	19.0 ppb
2015-04-15	5810-907-1221	25.0 ppb
2015-04-15	5810-908-1035	60.0 ppb
2015-04-15	5810-909-1155	21.0 ppb
2015-04-15	5810-910-1140	26.0 ppb
2015-04-15	5810-911-1105	21.0 ppb
2015-04-15	5810-912-1120	21.0 ppb
2015-04-15	5810-913-0957	2.10 ppb
2015-04-15	5810-914-1022	20.0 ppb
2015-04-15	5810-915-1034	29.0 ppb
2015-04-15	5810-916-1118	43.0 ppb
2015-04-15	5810-917-1059	36.0 ppb
2015-04-15	5810-918-0830	37.0 ppb
2015-07-15	5810-900-0748	1.70 ppb
2015-07-15	5810-901-0812	1.80 ppb
2015-07-15	5810-902-0841	4.70 ppb
2015-07-15	5810-903-0827	5.40 ppb
2015-07-15	5810-904-0843	9.40 ppb
2015-07-15	5810-905-0902	11.0 ppb
2015-07-15	5810-906-1048	4.60 ppb
2015-07-15	5810-907-1108	4.00 ppb
2015-07-15	5810-908-1125	56.0 ppb
2015-07-15	5810-909-1105	3.10 ppb
2015-07-15	5810-910-1046	7.60 ppb
2015-07-15	5810-911-0948	4.20 ppb
2015-07-15	5810-912-1020	3.70 ppb
2015-07-15	5810-913-0902	5.50 ppb
2015-07-15	5810-914-0930	4.30 ppb
2015-07-15	5810-915-0954	4.00 ppb
2015-07-15	5810-916-1020	5.10 ppb
2015-07-15	5810-917-1120	15.0 ppb
2015-07-15	5810-918-0810	5.60 ppb
2015-10-14	5810-900-0825	ND
2015-10-14	5810-901-0900	ND
2015-10-14	5810-902-0915	ND
2015-10-14	5810-903-0815	ND
2015-10-14	5810-904-0848	3.20 ppb
2015-10-14	5810-905-0920	3.30 ppb
2015-10-14	5810-906-1105	ND
2015-10-14	5810-907-1045	ND
2015-10-14	5810-908-1000	34.0 ppb
2015-10-14	5810-909-1022	15.0 ppb
2015-10-14	5810-910-1048	26.0 ppb
2015-10-14	5810-911-1106	20.0 ppb
2015-10-14	5810-912-1129	19.0 ppb
2015-10-14	5810-913-0930	ND
2015-10-14	5810-914-0945	ND
2015-10-14	5810-915-1000	4.60 ppb
2015-10-14	5810-916-1015	5.80 ppb
2015-10-14	5810-917-1030	4.90 ppb
2015-10-14	5810-918-0750	2.70 ppb
2016-01-28	5810-900-0732	12.0 ppb
2016-01-28	5810-901-0751	19.0 ppb
2016-01-28	5810-902-0809	8.00 ppb
2016-01-28	5810-903-0828	6.80 ppb
2016-01-28	5810-904-0954	20.0 ppb
2016-01-28	5810-905-1015	21.0 ppb
2016-01-28	5810-906-1048	7.20 ppb
2016-01-28	5810-907-1030	3.00 ppb
2016-01-28	5810-908-1200	62.0 ppb
2016-01-28	5810-909-1135	43.0 ppb
2016-01-28	5810-910-1115	48.0 ppb
2016-01-28	5810-911-1040	51.0 ppb
2016-01-28	5810-912-1100	44.0 ppb
2016-01-28	5810-913-0828	11.0 ppb
2016-01-28	5810-914-0851	22.0 ppb
2016-01-28	5810-915-0910	24.0 ppb
2016-01-28	5810-916-0932	24.0 ppb
2016-01-28	5810-917-0954	16.0 ppb
2016-01-28	5810-918-0810	21.0 ppb
2016-04-13	5810-900-0800	24.0 ppb
2016-04-13	5810-901-0820	25.0 ppb
2016-04-13	5810-902-0839	25.0 ppb
2016-04-13	5810-903-0823	30.0 ppb
2016-04-13	5810-904-0932	24.0 ppb
2016-04-13	5810-905-0951	25.0 ppb
2016-04-13	5810-906-1100	26.0 ppb
2016-04-13	5810-907-1129	28.0 ppb
2016-04-13	5810-908-0908	54.0 ppb
2016-04-13	5810-909-0851	43.0 ppb
2016-04-13	5810-910-1056	59.0 ppb
2016-04-13	5810-911-1125	50.0 ppb
2016-04-13	5810-912-1148	50.0 ppb
2016-04-13	5810-913-0855	26.0 ppb
2016-04-13	5810-914-0920	22.0 ppb
2016-04-13	5810-915-0935	21.0 ppb
2016-04-13	5810-916-0957	23.0 ppb
2016-04-13	5810-917-1015	24.0 ppb
2016-04-13	5810-918-0801	29.0 ppb
2016-07-13	5867-900-0800	6.70 ppb
2016-07-13	5867-901-0825	11.4 ppb
2016-07-13	5867-902-0900	12.4 ppb
2016-07-13	5867-903-0810	11.3 ppb
2016-07-13	5867-904-0852	16.4 ppb
2016-07-13	5867-905-0907	15.7 ppb
2016-07-13	5867-906-1130	9.40 ppb
2016-07-13	5867-907-1149	7.80 ppb
2016-07-13	5867-908-0930	59.4 ppb
2016-07-13	5867-909-0941	35.6 ppb
2016-07-13	5867-910-0955	58.1 ppb
2016-07-13	5867-911-1020	34.4 ppb
2016-07-13	5867-912-1008	34.9 ppb
2016-07-13	5867-913-0929	1.60 ppb
2016-07-13	5867-914-0950	5.00 ppb
2016-07-13	5867-915-1009	9.20 ppb
2016-07-13	5867-916-1028	13.9 ppb
2016-07-13	5867-917-1105	14.2 ppb
2016-07-13	5867-918-0752	12.6 ppb
2016-08-24	5867-083-1100	ND
2016-08-24	5867-084-1015	ND
2016-08-24	5867-087-0830	ND
2016-09-07	5867-096-0840	ND
2016-10-12	5867-900-0800	2.40 ppb
2016-10-12	5867-901-0830	5.40 ppb
2016-10-12	5867-902-0848	5.40 ppb
2016-10-12	5867-903-0828	6.00 ppb
2016-10-12	5867-904-0918	5.60 ppb
2016-10-12	5867-905-0933	5.40 ppb
2016-10-12	5867-906-1113	4.70 ppb
2016-10-12	5867-907-1135	4.80 ppb
2016-10-12	5867-908-1014	52.4 ppb
2016-10-12	5867-909-1041	21.1 ppb
2016-10-12	5867-910-1108	27.7 ppb
2016-10-12	5867-911-1130	21.6 ppb
2016-10-12	5867-912-1149	19.6 ppb
2016-10-12	5867-913-0915	7.40 ppb
2016-10-12	5867-914-0936	4.60 ppb
2016-10-12	5867-915-0953	6.60 ppb
2016-10-12	5867-916-1015	5.60 ppb
2016-10-12	5867-917-1039	6.40 ppb
2016-10-12	5867-918-0810	5.90 ppb
2017-01-18	5867-900-0800	27.5 ppb
2017-01-18	5867-901-0845	28.7 ppb
2017-01-18	5867-902-0910	30.5 ppb
2017-01-18	5867-903-0754	27.2 ppb
2017-01-18	5867-904-0850	28.7 ppb
2017-01-18	5867-905-0909	22.2 ppb
2017-01-18	5867-906-1255	23.9 ppb
2017-01-18	5867-907-1330	24.4 ppb
2017-01-18	5867-908-0958	61.1 ppb
2017-01-18	5867-909-1021	6.70 ppb
2017-01-18	5867-910-1100	83.2 ppb
2017-01-18	5867-911-1154	63.2 ppb
2017-01-18	5867-912-1131	25.9 ppb
2017-01-18	5867-913-0935	33.3 ppb
2017-01-18	5867-914-0955	28.9 ppb
2017-01-18	5867-915-1025	28.4 ppb
2017-01-18	5867-916-1045	28.1 ppb
2017-01-18	5867-917-1135	20.4 ppb
2017-01-18	5867-918-0741	28.2 ppb
2017-04-19	5867-900-0802	17.0 ppb
2017-04-19	5867-901-0821	26.0 ppb
2017-04-19	5867-902-0838	20.0 ppb
2017-04-19	5867-903-0850	27.0 ppb
2017-04-19	5867-904-1020	28.0 ppb
2017-04-19	5867-905-1045	19.0 ppb
2017-04-19	5867-906-1140	25.0 ppb
2017-04-19	5867-907-1206	24.0 ppb
2017-04-19	5867-908-1255	42.0 ppb
2017-04-19	5867-909-1220	ND
2017-04-19	5867-910-1155	7.00 ppb
2017-04-19	5867-911-1115	ND
2017-04-19	5867-912-1135	ND
2017-04-19	5867-913-0900	24.0 ppb
2017-04-19	5867-914-0923	19.0 ppb
2017-04-19	5867-915-0950	18.0 ppb
2017-04-19	5867-916-1023	24.0 ppb
2017-04-19	5867-917-1113	18.0 ppb
2017-04-19	5867-918-0825	27.0 ppb
2017-07-26	5867-900-0740	13.0 ppb
2017-07-26	5867-901-0815	16.0 ppb
2017-07-26	5867-902-0845	13.0 ppb
2017-07-26	5867-903-0757	12.0 ppb
2017-07-26	5867-904-0814	15.0 ppb
2017-07-26	5867-905-0838	16.0 ppb
2017-07-26	5867-906-1215	10.00 ppb
2017-07-26	5867-907-1245	11.0 ppb
2017-07-26	5867-908-1001	14.0 ppb
2017-07-26	5867-909-1032	41.0 ppb
2017-07-26	5867-910-1051	43.0 ppb
2017-07-26	5867-911-1109	47.0 ppb
2017-07-26	5867-912-1129	47.0 ppb
2017-07-26	5867-913-0915	10.00 ppb
2017-07-26	5867-914-0945	13.0 ppb
2017-07-26	5867-915-1015	10.00 ppb
2017-07-26	5867-916-1045	16.0 ppb
2017-07-26	5867-917-1130	17.0 ppb
2017-07-26	5867-918-0739	16.0 ppb
2017-10-18	5867-900-0755	6.00 ppb
2017-10-18	5867-901-0825	8.00 ppb
2017-10-18	5867-902-0855	7.00 ppb
2017-10-18	5867-903-0823	7.00 ppb
2017-10-18	5867-904-0842	6.00 ppb
2017-10-18	5867-905-0904	7.00 ppb
2017-10-18	5867-906-1135	4.00 ppb
2017-10-18	5867-907-1155	6.00 ppb
2017-10-18	5867-908-1012	26.0 ppb
2017-10-18	5867-909-1039	39.0 ppb
2017-10-18	5867-910-1100	37.0 ppb
2017-10-18	5867-911-1120	26.0 ppb
2017-10-18	5867-912-1141	27.0 ppb
2017-10-18	5867-913-0915	8.00 ppb
2017-10-18	5867-914-0935	6.00 ppb
2017-10-18	5867-915-1005	6.00 ppb
2017-10-18	5867-916-1025	9.00 ppb
2017-10-18	5867-917-1100	4.00 ppb
2017-10-18	5867-918-0801	8.00 ppb
2018-01-17	5867-900-0800	23.0 ppb
2018-01-17	5867-901-0830	17.0 ppb
2018-01-17	5867-902-0900	23.0 ppb
2018-01-17	5867-903-0823	20.0 ppb
2018-01-17	5867-904-0858	16.0 ppb
2018-01-17	5867-905-0926	16.0 ppb
2018-01-17	5867-906-1125	18.0 ppb
2018-01-17	5867-907-1150	15.0 ppb
2018-01-17	5867-908-1104	26.0 ppb
2018-01-17	5867-909-1209	32.0 ppb
2018-01-17	5867-910-1230	31.0 ppb
2018-01-17	5867-911-1303	30.0 ppb
2018-01-17	5867-912-1249	28.0 ppb
2018-01-17	5867-913-0920	18.0 ppb
2018-01-17	5867-914-0940	18.0 ppb
2018-01-17	5867-915-1000	16.0 ppb
2018-01-17	5867-916-1020	26.0 ppb
2018-01-17	5867-917-1040	16.0 ppb
2018-01-17	5867-918-0755	21.0 ppb
2018-04-18	9590-900-0737	15.0 ppb
2018-04-18	9590-901-0802	16.0 ppb
2018-04-18	9590-902-0841	16.0 ppb
2018-04-18	9590-903-0825	17.0 ppb
2018-04-18	9590-904-0900	18.0 ppb
2018-04-18	9590-905-0930	16.0 ppb
2018-04-18	9590-906-1104	14.0 ppb
2018-04-18	9590-907-1123	16.0 ppb
2018-04-18	9590-908-1040	47.0 ppb
2018-04-18	9590-909-1110	46.0 ppb
2018-04-18	9590-910-1140	63.0 ppb
2018-04-18	9590-911-1225	60.0 ppb
2018-04-18	9590-912-1205	55.0 ppb
2018-04-18	9590-913-0858	14.0 ppb
2018-04-18	9590-914-0916	13.0 ppb
2018-04-18	9590-915-0936	13.0 ppb
2018-04-18	9590-916-0956	15.0 ppb
2018-04-18	9590-917-1021	20.0 ppb
2018-04-18	9590-918-0755	16.0 ppb
2018-07-18	9590-900-0727	16.0 ppb
2018-07-18	9590-901-0756	17.0 ppb
2018-07-18	9590-902-0834	15.0 ppb
2018-07-18	9590-906-1147	14.0 ppb
2018-07-18	9590-907-1218	14.0 ppb
2018-07-18	9590-913-0857	18.0 ppb
2018-07-18	9590-914-0918	16.0 ppb
2018-07-18	9590-915-0937	13.0 ppb
2018-07-18	9590-916-1025	23.0 ppb
2018-07-18	9590-917-1100	20.0 ppb
2018-07-25	9590-903-0838	26.0 ppb
2018-07-25	9590-904-0948	20.0 ppb
2018-07-25	9590-905-0915	16.0 ppb
2018-07-25	9590-908-1120	25.0 ppb
2018-07-25	9590-909-1200	23.0 ppb
2018-07-25	9590-911-1332	30.0 ppb
2018-07-25	9590-912-1259	23.0 ppb
2018-07-25	9590-918-0801	20.0 ppb
2018-08-22	9590-910-0843	50.0 ppb
2018-10-17	9590-900-0816	9.00 ppb
2018-10-17	9590-901-0830	8.30 ppb
2018-10-17	9590-902-0924	9.10 ppb
2018-10-17	9590-903-0923	8.00 ppb
2018-10-17	9590-904-1032	8.60 ppb
2018-10-17	9590-905-1004	11.0 ppb
2018-10-17	9590-906-1221	8.00 ppb
2018-10-17	9590-907-1242	8.30 ppb
2018-10-17	9590-908-1106	20.0 ppb
2018-10-17	9590-909-1124	22.0 ppb
2018-10-17	9590-910-1300	35.0 ppb
2018-10-17	9590-911-1241	24.0 ppb
2018-10-17	9590-912-1202	22.0 ppb
2018-10-17	9590-913-0948	7.60 ppb
2018-10-17	9590-914-1016	6.90 ppb
2018-10-17	9590-915-1040	6.70 ppb
2018-10-17	9590-916-1101	9.30 ppb
2018-10-17	9590-917-1136	12.0 ppb
2018-10-17	9590-918-0834	7.70 ppb
2019-01-16	1610-900-0740	27.8 ppb
2019-01-16	1610-901-0815	26.5 ppb
2019-01-16	1610-902-0841	33.0 ppb
2019-01-16	1610-903-0809	36.2 ppb
2019-01-16	1610-904-0840	35.7 ppb
2019-01-16	1610-905-0911	41.3 ppb
2019-01-16	1610-906-1144	34.1 ppb
2019-01-16	1610-907-1120	39.1 ppb
2019-01-16	1610-908-1014	67.0 ppb
2019-01-16	1610-909-1052	70.7 ppb
2019-01-16	1610-910-1115	75.1 ppb
2019-01-16	1610-911-1143	71.5 ppb
2019-01-16	1610-912-1212	67.5 ppb
2019-01-16	1610-913-0903	24.6 ppb
2019-01-16	1610-914-0927	26.6 ppb
2019-01-16	1610-915-0941	26.5 ppb
2019-01-16	1610-916-1004	30.9 ppb
2019-01-16	1610-917-1026	32.6 ppb
2019-01-16	1610-918-0740	32.0 ppb
2019-01-30	5810-900-0750	ND
2019-01-30	5810-901-0808	ND
2019-01-30	5810-902-0832	5.80 ppb
2019-01-30	5810-903-0827	4.30 ppb
2019-01-30	5810-904-0857	48.0 ppb
2019-01-30	5810-905-1003	46.0 ppb
2019-01-30	5810-906-1100	53.0 ppb
2019-01-30	5810-907-1129	58.0 ppb
2019-01-30	5810-908-1037	44.0 ppb
2019-01-30	5810-909-1111	38.0 ppb
2019-01-30	5810-910-1126	67.0 ppb
2019-01-30	5810-911-1147	66.0 ppb
2019-01-30	5810-912-1209	38.0 ppb
2019-01-30	5810-913-0853	45.0 ppb
2019-01-30	5810-914-0911	46.0 ppb
2019-01-30	5810-915-0929	45.0 ppb
2019-01-30	5810-916-0954	51.0 ppb
2019-01-30	5810-917-1014	55.0 ppb
2019-01-30	5810-918-0753	51.0 ppb
2019-04-10	1610-900-0801	18.8 ppb
2019-04-10	1610-901-0821	17.5 ppb
2019-04-10	1610-902-0843	18.1 ppb
2019-04-10	1610-903-0823	18.5 ppb
2019-04-10	1610-904-0852	19.9 ppb
2019-04-10	1610-905-0916	32.9 ppb
2019-04-10	1610-906-1117	15.2 ppb
2019-04-10	1610-907-1141	12.2 ppb
2019-04-10	1610-908-1040	43.2 ppb
2019-04-10	1610-909-1115	41.4 ppb
2019-04-10	1610-910-1143	54.7 ppb
2019-04-10	1610-911-1209	39.5 ppb
2019-04-10	1610-912-1236	40.4 ppb
2019-04-10	1610-913-0911	15.5 ppb
2019-04-10	1610-914-0939	11.3 ppb
2019-04-10	1610-915-0954	11.0 ppb
2019-04-10	1610-916-1020	18.1 ppb
2019-04-10	1610-917-1051	32.2 ppb
2019-04-10	1610-918-0750	18.2 ppb
2019-07-10	1610-900-0749	13.8 ppb
2019-07-10	1610-901-0817	16.8 ppb
2019-07-10	1610-902-0838	20.2 ppb
2019-07-10	1610-903-0821	19.1 ppb
2019-07-10	1610-904-0934	22.5 ppb
2019-07-10	1610-905-0958	23.0 ppb
2019-07-10	1610-906-1105	20.0 ppb
2019-07-10	1610-907-1135	17.1 ppb
2019-07-10	1610-908-1026	36.6 ppb
2019-07-10	1610-909-1049	43.1 ppb
2019-07-10	1610-910-1109	46.9 ppb
2019-07-10	1610-911-1131	36.1 ppb
2019-07-10	1610-912-1153	36.1 ppb
2019-07-10	1610-913-0851	2.80 ppb
2019-07-10	1610-914-0908	14.0 ppb
2019-07-10	1610-915-0931	20.9 ppb
2019-07-10	1610-916-0953	22.0 ppb
2019-07-10	1610-917-1017	25.2 ppb
2019-07-10	1610-918-0755	19.9 ppb
2019-10-16	1610-900-0755	19.4 ppb
2019-10-16	1610-901-0832	14.4 ppb
2019-10-16	1610-902-0851	12.0 ppb
2019-10-16	1610-903-0815	14.8 ppb
2019-10-16	1610-904-0914	18.6 ppb
2019-10-16	1610-905-0934	17.8 ppb
2019-10-16	1610-906-1138	15.3 ppb
2019-10-16	1610-907-1159	10.8 ppb
2019-10-16	1610-908-1008	32.4 ppb
2019-10-16	1610-909-1040	27.4 ppb
2019-10-16	1610-910-1101	30.4 ppb
2019-10-16	1610-911-1140	33.1 ppb
2019-10-16	1610-912-1121	28.0 ppb
2019-10-16	1610-913-0910	17.3 ppb
2019-10-16	1610-914-0932	16.4 ppb
2019-10-16	1610-915-0953	15.7 ppb
2019-10-16	1610-916-1012	14.9 ppb
2019-10-16	1610-917-1054	18.3 ppb
2019-10-16	1610-918-0750	17.2 ppb