Haloacetic acids (HAA5)

Chester Water Authority

Haloacetic acids are formed when disinfectants such as chlorine are added to tap water. The group of five haloacetic acids regulated by federal standards includes monochloroacetic acid, dichloroacetic acid, trichloroacetic acid, monobromoacetic acid and dibromoacetic acid. Read More.

Haloacetic acids are harmful during pregnancy and may increase the risk of cancer. Haloacetic acids are� genotoxic, which means that they induce mutations and DNA damage. Multiple studies by the National Toxicology Program have demonstrated the cancer-causing properties of individual haloacetic acids in laboratory animals. The Department of Health and Human Services is currently considering listing di- or tri-haloacetic acids for possible inclusion in its comprehensive Report on Carcinogens.

Click here to read more about disinfection byproducts.

MORE ABOUT THIS CONTAMINANT

576

Samples

Samples exceeding legal limit (MCL)

575

Samples exceeding
health guidelines

Testing results - average by year

Year	Average result	Samples taken	Detections	Range of results
2013	N/A	0	0	N/A
2014	29.9 ppb	96	95	ND - 61.6 ppb
2015	38.3 ppb	96	96	12.0 ppb - 73.0 ppb
2016	33.9 ppb	96	96	17.9 ppb - 54.1 ppb
2017	40.9 ppb	96	96	23.1 ppb - 69.8 ppb
2018	39.6 ppb	96	96	20.0 ppb - 81.4 ppb
2019	32.7 ppb	96	96	14.2 ppb - 65.1 ppb

ppb = parts per billion

State and national drinking water standards and health guidelines

EWG Health Guideline 0.1 ppb

The EWG Health Guideline of 0.1 ppb for the group of five haloacetic acids, or HAA5, was defined in a peer-reviewed scientific study by EWG and represents a one-in-a-million lifetime cancer risk level. This health guideline protects against cancer.

EPA Maximum Contaminant
Level (MCL) 60 ppb

The legal limit for the group of five haloacetic acids (HAA5), established in 1998, was based on the need for residual disinfectant levels in water served to customers and the cost of treatment. This limit does not fully protect against the risk of cancer and harm to the developing fetus due to exposure to haloacetic acids.

ppb = parts per billion

All test results

Date	Lab ID	Result
2014-01-09	HONEYCROFT	36.6 ppb
2014-01-09	VILLAGE GREE	45.2 ppb
2014-01-09	METER SHOP	45.2 ppb
2014-01-09	OGDEN SUPPLY	44.5 ppb
2014-01-09	MCD EDGEMONT	43.5 ppb
2014-01-09	THORNTON PO	44.5 ppb
2014-01-09	PRODUCE JUNC	46.4 ppb
2014-01-09	WAWA 322	46.5 ppb
2014-02-07	VILLAGE GREE	20.7 ppb
2014-02-07	METER SHOP	15.6 ppb
2014-02-07	OGDEN SUPPLY	16.4 ppb
2014-02-07	MCD EDGEMONT	22.6 ppb
2014-02-07	THORNTON PO	13.9 ppb
2014-02-07	PRODUCE JUNC	22.6 ppb
2014-02-07	WAWA 322	16.0 ppb
2014-02-11	HONEYCROFT	14.6 ppb
2014-03-10	VILLAGE GREE	28.0 ppb
2014-03-10	METER SHOP	26.5 ppb
2014-03-10	OGDEN SUPPLY	29.1 ppb
2014-03-10	MCD EDGEMONT	27.6 ppb
2014-03-10	THORNTON PO	23.9 ppb
2014-03-10	PRODUCE JUNC	30.4 ppb
2014-03-10	WAWA 322	26.3 ppb
2014-03-11	HONEYCROFT	31.3 ppb
2014-04-08	HONEYCROFT	19.5 ppb
2014-04-08	VILLAGE GREE	33.4 ppb
2014-04-08	METER SHOP	30.5 ppb
2014-04-08	OGDEN SUPPLY	27.9 ppb
2014-04-08	MCD EDGEMONT	32.6 ppb
2014-04-08	THORNTO PO	30.0 ppb
2014-04-08	PRODUCE JUNC	30.4 ppb
2014-04-08	WAWA 322	28.3 ppb
2014-05-12	VILLAGE GREE	37.6 ppb
2014-05-12	METER SHOP	36.4 ppb
2014-05-12	OGDEN SUPPLY	44.3 ppb
2014-05-12	MCD EDGEMONT	35.5 ppb
2014-05-12	THORNTON PO	31.8 ppb
2014-05-12	PRODUCE JUNC	33.6 ppb
2014-05-12	WAWA 322	41.7 ppb
2014-05-13	HONEYCROFT	61.6 ppb
2014-06-09	VILLAGE GREE	42.3 ppb
2014-06-09	METER SHOP	31.2 ppb
2014-06-09	OGDEN SUPPLY	37.8 ppb
2014-06-09	MCD EDGEMONT	41.1 ppb
2014-06-09	THORNTON PO	35.2 ppb
2014-06-09	PRODUCE JUNC	40.5 ppb
2014-06-09	WAWA 322	37.3 ppb
2014-06-10	HONEYCROFT	36.8 ppb
2014-07-08	HONEYCROFT	40.9 ppb
2014-07-08	VILLAGE GREE	42.2 ppb
2014-07-08	METER SHOP	31.2 ppb
2014-07-08	OGDEN SUPPLY	45.7 ppb
2014-07-08	MCD EDGEMONT	52.1 ppb
2014-07-08	THORNTON PO	45.3 ppb
2014-07-08	PRODUCE JUNC	47.6 ppb
2014-07-08	WAWA 322	41.5 ppb
2014-08-11	VILLAGE GREE	38.0 ppb
2014-08-11	METER SHOP	27.8 ppb
2014-08-11	OGDEN SUPPLY	31.7 ppb
2014-08-11	MCD EDGEMONT	38.9 ppb
2014-08-11	THORNTON PO	40.8 ppb
2014-08-11	PRODUCE JUNC	36.8 ppb
2014-08-11	WAWA 322	31.0 ppb
2014-08-12	HONEYCROFT	29.7 ppb
2014-09-08	HONEYCROFT	24.5 ppb
2014-09-08	VILLAGE GREE	25.2 ppb
2014-09-08	METER SHOP	18.5 ppb
2014-09-08	OGDEN SUPPLY	13.2 ppb
2014-09-08	MCD EDGEMONT	20.2 ppb
2014-09-08	THORNTON PO	17.8 ppb
2014-09-08	PRODUCE JUNC	21.0 ppb
2014-09-08	WAWA 322	15.9 ppb
2014-10-07	HONEYCROFT	16.0 ppb
2014-10-07	VILLAGE GREE	24.7 ppb
2014-10-07	METER SHOP	10.9 ppb
2014-10-07	OGDEN SUPPLY	14.9 ppb
2014-10-07	MCD EDGEMONT	27.1 ppb
2014-10-07	THORNTON PO	24.0 ppb
2014-10-07	PRODUCE JUNC	24.7 ppb
2014-10-07	WAWA 322	18.1 ppb
2014-11-07	HONEYCROFT	24.3 ppb
2014-11-07	VILLAGE GREE	23.5 ppb
2014-11-07	METER SHOP	12.8 ppb
2014-11-07	OGDEN SUPPLY	11.5 ppb
2014-11-07	MCD EDGEMONT	23.5 ppb
2014-11-07	THORNTON PO	ND
2014-11-07	PRODUCE JUNC	22.9 ppb
2014-11-07	WAWA 322	18.5 ppb
2014-12-08	VILLAGE GREE	28.6 ppb
2014-12-08	METER SHOP	27.2 ppb
2014-12-08	OGDEN SUPPLY	21.6 ppb
2014-12-08	MCD EDGEMONT	29.5 ppb
2014-12-08	THORNTON PO	25.9 ppb
2014-12-08	PRODUCE JUNC	31.0 ppb
2014-12-08	WAWA 322	29.4 ppb
2014-12-09	HONEYCROFT	31.4 ppb
2015-01-07	12284644	29.0 ppb
2015-01-07	12284643	25.8 ppb
2015-01-07	12284642	29.3 ppb
2015-01-07	12284646	29.0 ppb
2015-01-07	12284647	27.3 ppb
2015-01-07	12284649	27.7 ppb
2015-01-07	12284648	27.0 ppb
2015-01-07	12284645	27.6 ppb
2015-02-11	12399427	39.5 ppb
2015-02-11	12399421	28.3 ppb
2015-02-11	12399415	32.1 ppb
2015-02-11	12399439	32.2 ppb
2015-02-11	12399445	33.2 ppb
2015-02-11	12399457	31.9 ppb
2015-02-11	12399451	36.6 ppb
2015-02-11	12399433	31.0 ppb
2015-03-09	12513327	26.2 ppb
2015-03-09	12513326	26.3 ppb
2015-03-09	12513330	29.2 ppb
2015-03-09	12513331	29.3 ppb
2015-03-09	12513333	30.2 ppb
2015-03-09	12513332	25.4 ppb
2015-03-09	12513329	30.8 ppb
2015-03-10	12513328	21.7 ppb
2015-04-07	12630504	12.9 ppb
2015-04-07	12630503	13.6 ppb
2015-04-07	12630502	12.0 ppb
2015-04-07	12630506	13.7 ppb
2015-04-07	12630507	13.5 ppb
2015-04-07	12630509	13.7 ppb
2015-04-07	12630508	13.7 ppb
2015-04-07	12630505	13.3 ppb
2015-05-07	12747581	22.0 ppb
2015-05-07	12747575	22.7 ppb
2015-05-07	12747569	22.1 ppb
2015-05-07	12747593	22.7 ppb
2015-05-07	12747599	22.4 ppb
2015-05-07	12747611	20.9 ppb
2015-05-07	12747605	21.5 ppb
2015-05-07	12747587	21.6 ppb
2015-06-09	12880018	45.3 ppb
2015-06-09	12880017	51.6 ppb
2015-06-09	12880016	36.5 ppb
2015-06-09	12880020	48.1 ppb
2015-06-09	12880021	50.8 ppb
2015-06-09	12880023	58.9 ppb
2015-06-09	12880022	40.5 ppb
2015-06-09	12880019	47.5 ppb
2015-07-08	13010216	73.0 ppb
2015-07-08	13010215	66.8 ppb
2015-07-08	13010214	63.0 ppb
2015-07-08	13010218	71.2 ppb
2015-07-08	13010219	65.8 ppb
2015-07-08	13010221	66.6 ppb
2015-07-08	13010220	64.5 ppb
2015-07-08	13010217	64.1 ppb
2015-08-12	13133582	47.3 ppb
2015-08-12	13133576	47.0 ppb
2015-08-12	13133570	43.2 ppb
2015-08-12	13133594	45.1 ppb
2015-08-12	13133600	44.8 ppb
2015-08-12	13133612	40.0 ppb
2015-08-12	13133606	47.7 ppb
2015-08-12	13133588	41.9 ppb
2015-09-09	13262599	45.7 ppb
2015-09-09	13262598	42.6 ppb
2015-09-09	13262597	37.4 ppb
2015-09-09	13262601	44.8 ppb
2015-09-09	13262602	48.1 ppb
2015-09-09	13262604	39.2 ppb
2015-09-09	13262603	50.8 ppb
2015-09-09	13262600	40.4 ppb
2015-10-07	13386884	38.5 ppb
2015-10-07	13386883	50.2 ppb
2015-10-07	13386882	38.9 ppb
2015-10-07	13386886	38.5 ppb
2015-10-07	13386887	49.2 ppb
2015-10-07	13386889	46.0 ppb
2015-10-07	13386888	50.3 ppb
2015-10-07	13386885	43.6 ppb
2015-11-09	13512166	51.9 ppb
2015-11-09	13512160	39.8 ppb
2015-11-09	13512178	41.9 ppb
2015-11-09	13512184	54.6 ppb
2015-11-09	13512196	50.2 ppb
2015-11-09	13512190	52.5 ppb
2015-11-09	13512172	43.9 ppb
2015-11-12	13512202	50.7 ppb
2015-12-08	13631057	37.7 ppb
2015-12-08	13631056	44.6 ppb
2015-12-08	13631055	36.9 ppb
2015-12-08	13631059	34.4 ppb
2015-12-08	13631060	41.8 ppb
2015-12-08	13631062	44.9 ppb
2015-12-08	13631061	41.7 ppb
2015-12-08	13631058	40.8 ppb
2016-01-07	13750364	38.6 ppb
2016-01-07	13750363	42.1 ppb
2016-01-07	13750362	37.8 ppb
2016-01-07	13750366	40.0 ppb
2016-01-07	13750367	40.9 ppb
2016-01-07	13750369	42.3 ppb
2016-01-07	13750368	42.3 ppb
2016-01-07	13750365	40.1 ppb
2016-02-08	13868227	29.2 ppb
2016-02-08	13868221	25.7 ppb
2016-02-08	13868245	28.2 ppb
2016-02-08	13868251	30.3 ppb
2016-02-08	13868263	33.3 ppb
2016-02-08	13868257	39.1 ppb
2016-02-08	13868239	27.5 ppb
2016-02-09	13868233	26.1 ppb
2016-03-09	13983698	37.9 ppb
2016-03-09	13983697	30.0 ppb
2016-03-09	13983696	33.9 ppb
2016-03-09	13983700	34.5 ppb
2016-03-09	13983701	30.9 ppb
2016-03-09	13983703	24.9 ppb
2016-03-09	13983702	31.9 ppb
2016-03-09	13983699	34.0 ppb
2016-04-07	14100374	19.3 ppb
2016-04-07	14100375	20.0 ppb
2016-04-07	14100368	17.9 ppb
2016-04-07	14100370	19.1 ppb
2016-04-07	14100372	19.9 ppb
2016-04-07	14100371	18.8 ppb
2016-04-07	14100373	19.5 ppb
2016-04-07	14100369	18.1 ppb
2016-05-10	14248223	29.1 ppb
2016-05-10	14248265	19.6 ppb
2016-05-10	14248247	21.2 ppb
2016-05-10	14248259	27.5 ppb
2016-05-10	14248241	22.2 ppb
2016-05-10	14248234	32.2 ppb
2016-05-10	14248235	28.6 ppb
2016-05-10	14248253	27.6 ppb
2016-06-07	14403066	34.4 ppb
2016-06-07	14403065	34.1 ppb
2016-06-07	14403071	26.4 ppb
2016-06-07	14403067	38.1 ppb
2016-06-07	14403068	34.5 ppb
2016-06-07	14403070	31.1 ppb
2016-06-07	14403069	37.0 ppb
2016-06-07	14403064	31.5 ppb
2016-07-07	14567246	41.1 ppb
2016-07-07	14567243	45.9 ppb
2016-07-07	14567241	37.5 ppb
2016-07-07	14567244	37.3 ppb
2016-07-07	14567240	40.8 ppb
2016-07-07	14567245	44.6 ppb
2016-07-07	14567242	42.3 ppb
2016-07-07	14567247	42.4 ppb
2016-08-09	14732734	33.7 ppb
2016-08-09	14732776	48.7 ppb
2016-08-09	14732764	42.0 ppb
2016-08-09	14732740	47.6 ppb
2016-08-09	14732752	48.9 ppb
2016-08-09	14732746	53.3 ppb
2016-08-09	14732758	54.1 ppb
2016-08-09	14732770	41.5 ppb
2016-09-13	14905598	31.2 ppb
2016-09-13	14905601	44.0 ppb
2016-09-13	14905597	37.9 ppb
2016-09-13	14905603	33.3 ppb
2016-09-13	14905602	43.3 ppb
2016-09-13	14905600	41.0 ppb
2016-09-13	14905604	41.0 ppb
2016-09-13	14905599	34.8 ppb
2016-10-07	15073194	25.1 ppb
2016-10-07	15073192	31.8 ppb
2016-10-07	15073189	29.7 ppb
2016-10-07	15073188	25.1 ppb
2016-10-07	15073193	32.2 ppb
2016-10-07	15073191	27.5 ppb
2016-10-07	15073195	29.7 ppb
2016-10-07	15073190	29.9 ppb
2016-11-09	15223844	28.0 ppb
2016-11-09	15223820	40.2 ppb
2016-11-09	15223838	37.6 ppb
2016-11-09	15223808	26.5 ppb
2016-11-09	15223826	42.6 ppb
2016-11-09	15223814	43.3 ppb
2016-11-09	15223802	41.9 ppb
2016-11-09	15223832	37.2 ppb
2016-12-08	15369108	29.1 ppb
2016-12-08	15369112	35.2 ppb
2016-12-08	15369113	33.4 ppb
2016-12-08	15369109	31.6 ppb
2016-12-08	15369111	34.8 ppb
2016-12-08	15369114	37.1 ppb
2016-12-08	15369115	33.1 ppb
2016-12-08	15369110	35.2 ppb
2017-01-10	15514879	31.6 ppb
2017-01-10	15514877	29.4 ppb
2017-01-10	15514874	28.5 ppb
2017-01-10	15514875	32.5 ppb
2017-01-10	15514873	31.1 ppb
2017-01-10	15514876	33.3 ppb
2017-01-10	15514872	33.7 ppb
2017-01-10	15514878	31.5 ppb
2017-02-07	15652749	29.1 ppb
2017-02-07	15652767	26.2 ppb
2017-02-07	15652773	26.0 ppb
2017-02-07	15652779	27.7 ppb
2017-02-07	15652786	26.7 ppb
2017-02-07	15652755	25.3 ppb
2017-02-07	15652761	27.6 ppb
2017-02-07	15652785	27.9 ppb
2017-03-07	15792483	23.1 ppb
2017-03-07	15792482	28.9 ppb
2017-03-07	15792477	27.3 ppb
2017-03-07	15792479	26.0 ppb
2017-03-07	15792478	28.2 ppb
2017-03-07	15792480	29.6 ppb
2017-03-07	15792481	27.3 ppb
2017-03-07	15792484	24.0 ppb
2017-04-11	15934144	40.6 ppb
2017-04-11	15934141	46.3 ppb
2017-04-11	15934139	44.7 ppb
2017-04-11	15934138	44.4 ppb
2017-04-11	15934143	48.0 ppb
2017-04-11	15934145	48.1 ppb
2017-04-11	15934140	40.5 ppb
2017-04-11	15934142	39.7 ppb
2017-05-10	16091677	46.2 ppb
2017-05-25	16091746	37.7 ppb
2017-05-25	16091744	45.1 ppb
2017-05-25	16091743	39.7 ppb
2017-05-25	16091742	40.1 ppb
2017-05-25	16091741	36.6 ppb
2017-05-25	16091745	40.0 ppb
2017-05-25	16091740	41.5 ppb
2017-06-08	16254893	53.1 ppb
2017-06-08	16254892	53.3 ppb
2017-06-08	16254896	53.2 ppb
2017-06-08	16254897	52.5 ppb
2017-06-08	16254895	59.0 ppb
2017-06-08	16254898	58.0 ppb
2017-06-08	16254891	56.2 ppb
2017-06-08	16254894	58.0 ppb
2017-07-07	16410429	59.4 ppb
2017-07-07	16410430	53.6 ppb
2017-07-07	16410436	48.5 ppb
2017-07-07	16410432	44.4 ppb
2017-07-07	16410434	58.1 ppb
2017-07-07	16410433	59.2 ppb
2017-07-07	16410435	58.1 ppb
2017-07-07	16410431	58.3 ppb
2017-08-09	16562824	51.3 ppb
2017-08-09	16562842	59.4 ppb
2017-08-09	16562860	66.1 ppb
2017-08-09	16562836	62.6 ppb
2017-08-09	16562854	69.8 ppb
2017-08-09	16562861	57.9 ppb
2017-08-09	16562843	62.8 ppb
2017-08-09	16562825	64.1 ppb
2017-09-12	16724592	30.0 ppb
2017-09-12	16724593	30.9 ppb
2017-09-12	16724591	26.8 ppb
2017-09-12	16724594	25.2 ppb
2017-09-12	16724588	33.8 ppb
2017-09-12	16724595	30.4 ppb
2017-09-12	16724589	34.4 ppb
2017-09-12	16724590	33.0 ppb
2017-10-11	16877378	28.2 ppb
2017-10-11	16877380	38.8 ppb
2017-10-11	16877384	31.5 ppb
2017-10-11	16877385	28.6 ppb
2017-10-11	16877382	49.1 ppb
2017-10-11	16877379	33.4 ppb
2017-10-11	16877383	38.3 ppb
2017-10-11	16877381	38.6 ppb
2017-11-08	17020813	43.9 ppb
2017-11-08	17020789	50.4 ppb
2017-11-08	17020807	42.7 ppb
2017-11-08	17020819	36.8 ppb
2017-11-08	17020783	60.0 ppb
2017-11-08	17020825	52.9 ppb
2017-11-08	17020801	56.8 ppb
2017-11-08	17020795	48.6 ppb
2017-12-07	17159465	27.0 ppb
2017-12-07	17159471	33.1 ppb
2017-12-07	17159469	27.2 ppb
2017-12-07	17159472	30.9 ppb
2017-12-07	17159468	43.5 ppb
2017-12-07	17159470	35.2 ppb
2017-12-07	17159467	36.4 ppb
2017-12-07	17159466	27.5 ppb
2018-01-09	2287656003	20.2 ppb
2018-01-09	2287656002	21.7 ppb
2018-01-09	2287656001	22.9 ppb
2018-01-09	2287656005	22.4 ppb
2018-01-09	2287656006	23.4 ppb
2018-01-09	2287656007	22.7 ppb
2018-01-09	2287656004	22.7 ppb
2018-01-11	2288513001	20.0 ppb
2018-02-08	2294360003	37.3 ppb
2018-02-08	2294360002	35.3 ppb
2018-02-08	2294360001	36.2 ppb
2018-02-08	2294360005	37.2 ppb
2018-02-08	2294360006	36.6 ppb
2018-02-08	2294360008	35.6 ppb
2018-02-08	2294360007	35.4 ppb
2018-02-08	2294360004	37.3 ppb
2018-03-08	2300908003	55.0 ppb
2018-03-08	2300908002	42.9 ppb
2018-03-08	2300908001	45.9 ppb
2018-03-08	2300908005	43.0 ppb
2018-03-08	2300908006	42.0 ppb
2018-03-08	2300908008	46.2 ppb
2018-03-08	2300908007	50.7 ppb
2018-03-08	2300908004	46.4 ppb
2018-04-10	2308348003	23.9 ppb
2018-04-10	2308348002	24.5 ppb
2018-04-10	2308348001	22.3 ppb
2018-04-10	2308348005	21.1 ppb
2018-04-10	2308348006	25.9 ppb
2018-04-10	2308348008	26.3 ppb
2018-04-10	2308348007	25.4 ppb
2018-04-10	2308348004	24.9 ppb
2018-05-08	2314159003	42.0 ppb
2018-05-08	2314159002	35.0 ppb
2018-05-08	2314159001	30.3 ppb
2018-05-08	2314159005	34.6 ppb
2018-05-08	2314159006	35.3 ppb
2018-05-08	2314159008	30.2 ppb
2018-05-08	2314159007	37.3 ppb
2018-05-08	2314159004	34.4 ppb
2018-06-12	2320664003	49.7 ppb
2018-06-12	2320664002	46.0 ppb
2018-06-12	2320664001	39.4 ppb
2018-06-12	2320664005	44.2 ppb
2018-06-12	2320664006	45.8 ppb
2018-06-12	2320664008	42.1 ppb
2018-06-12	2320664007	49.0 ppb
2018-06-12	2320664004	46.0 ppb
2018-07-10	2325707003	42.9 ppb
2018-07-10	2325707002	40.8 ppb
2018-07-10	2325707001	31.5 ppb
2018-07-10	2325707005	36.9 ppb
2018-07-10	2325707006	44.1 ppb
2018-07-10	2325707008	39.8 ppb
2018-07-10	2325707007	34.8 ppb
2018-07-10	2325707004	39.0 ppb
2018-08-10	2331907003	64.3 ppb
2018-08-10	2331907002	72.3 ppb
2018-08-10	2331907001	58.0 ppb
2018-08-10	2331907005	60.8 ppb
2018-08-10	2331907006	81.4 ppb
2018-08-10	2331907008	66.2 ppb
2018-08-10	2331907007	62.3 ppb
2018-08-10	2331907004	66.1 ppb
2018-09-07	2337327003	40.7 ppb
2018-09-07	2337327002	59.9 ppb
2018-09-07	2337327001	53.6 ppb
2018-09-07	2337327005	54.3 ppb
2018-09-07	2337327006	62.5 ppb
2018-09-07	2337327008	59.9 ppb
2018-09-07	2337327007	61.2 ppb
2018-09-07	2337327004	55.1 ppb
2018-10-10	2343959003	26.1 ppb
2018-10-10	2343959002	39.2 ppb
2018-10-10	2343959001	38.3 ppb
2018-10-10	2343959005	34.1 ppb
2018-10-10	2343959006	41.5 ppb
2018-10-10	2343959008	41.1 ppb
2018-10-10	2343959007	41.1 ppb
2018-10-10	2343959004	37.3 ppb
2018-11-07	2349357003	40.9 ppb
2018-11-07	2349357002	42.7 ppb
2018-11-07	2349357001	37.8 ppb
2018-11-07	2349357006	46.8 ppb
2018-11-07	2349357008	47.7 ppb
2018-11-07	2349357007	38.5 ppb
2018-11-07	2349357004	34.3 ppb
2018-11-08	2349357005	34.0 ppb
2018-12-11	3005508003	24.8 ppb
2018-12-11	3005508002	27.5 ppb
2018-12-11	3005508001	27.3 ppb
2018-12-11	3005508005	28.5 ppb
2018-12-11	3005508006	25.1 ppb
2018-12-11	3005508008	24.2 ppb
2018-12-11	3005508007	27.4 ppb
2018-12-11	3005508004	27.9 ppb
2019-01-08	3009895003	29.3 ppb
2019-01-08	3009895002	23.8 ppb
2019-01-08	3009895001	25.3 ppb
2019-01-08	3009895005	27.2 ppb
2019-01-08	3009895006	24.4 ppb
2019-01-08	3009895008	26.6 ppb
2019-01-08	3009895007	26.6 ppb
2019-01-08	3009895004	24.4 ppb
2019-02-12	3016801003	33.4 ppb
2019-02-12	3016801002	20.5 ppb
2019-02-12	3016801001	21.7 ppb
2019-02-12	3016801005	23.0 ppb
2019-02-12	3016801006	19.2 ppb
2019-02-12	3016801008	20.5 ppb
2019-02-12	3016801007	20.8 ppb
2019-02-12	3016801004	21.6 ppb
2019-03-07	3020744003	18.4 ppb
2019-03-07	3020744002	15.5 ppb
2019-03-07	3020744001	18.0 ppb
2019-03-07	3020744005	17.5 ppb
2019-03-07	3020744006	15.6 ppb
2019-03-07	3020744008	17.2 ppb
2019-03-07	3020744007	14.2 ppb
2019-03-07	3020744004	17.7 ppb
2019-04-10	3027870003	17.2 ppb
2019-04-10	3027870002	16.6 ppb
2019-04-10	3027870001	17.7 ppb
2019-04-10	3027870005	18.4 ppb
2019-04-10	3027870006	20.3 ppb
2019-04-10	3027870008	22.2 ppb
2019-04-10	3027870007	21.6 ppb
2019-04-10	3027870004	18.9 ppb
2019-05-16	3034622003	38.3 ppb
2019-05-16	3034622002	46.3 ppb
2019-05-16	3034622001	41.0 ppb
2019-05-16	3034622005	40.7 ppb
2019-05-16	3034622006	48.1 ppb
2019-05-16	3034622008	43.5 ppb
2019-05-16	3034622007	44.5 ppb
2019-05-16	3034622004	44.5 ppb
2019-06-07	3038500003	26.2 ppb
2019-06-07	3038500002	24.9 ppb
2019-06-07	3038500001	24.7 ppb
2019-06-07	3038500005	29.3 ppb
2019-06-07	3038500006	26.5 ppb
2019-06-07	3038500008	24.7 ppb
2019-06-07	3038500007	23.7 ppb
2019-06-07	3038500004	26.3 ppb
2019-07-09	3044794003	50.3 ppb
2019-07-09	3044794002	48.7 ppb
2019-07-09	3044794001	45.0 ppb
2019-07-09	3044794005	48.2 ppb
2019-07-09	3044794006	49.0 ppb
2019-07-09	3044794008	47.4 ppb
2019-07-09	3044794007	48.0 ppb
2019-07-09	3044794004	46.1 ppb
2019-08-07	3050926003	45.3 ppb
2019-08-07	3050926002	45.3 ppb
2019-08-07	3050926001	45.5 ppb
2019-08-07	3050926005	45.1 ppb
2019-08-07	3050926007	41.0 ppb
2019-08-07	3050926006	53.8 ppb
2019-08-07	3050926004	44.0 ppb
2019-08-12	3051528001	49.3 ppb
2019-09-11	3057607003	34.3 ppb
2019-09-11	3057607002	36.3 ppb
2019-09-11	3057607001	36.6 ppb
2019-09-11	3057607005	36.3 ppb
2019-09-11	3057607006	36.1 ppb
2019-09-11	3057607008	30.5 ppb
2019-09-11	3057607007	35.6 ppb
2019-09-11	3057607004	34.2 ppb
2019-10-08	3063042003	32.2 ppb
2019-10-08	3063042002	31.4 ppb
2019-10-08	3063042001	30.7 ppb
2019-10-08	3063042005	26.9 ppb
2019-10-08	3063042006	29.5 ppb
2019-10-08	3063042008	31.8 ppb
2019-10-08	3063042007	31.3 ppb
2019-10-08	3063042004	29.1 ppb
2019-11-07	3068994003	62.8 ppb
2019-11-07	3068994002	65.1 ppb
2019-11-07	3068994001	52.2 ppb
2019-11-07	3068994005	54.3 ppb
2019-11-07	3068994006	62.1 ppb
2019-11-07	3068994008	59.6 ppb
2019-11-07	3068994007	62.9 ppb
2019-11-07	3068994004	53.4 ppb
2019-12-10	3075060003	19.1 ppb
2019-12-10	3075060002	19.2 ppb
2019-12-10	3075060001	19.1 ppb
2019-12-10	3075060005	21.7 ppb
2019-12-10	3075060007	20.4 ppb
2019-12-10	3075060006	22.0 ppb
2019-12-10	3075060004	20.3 ppb
2019-12-11	3075164001	22.0 ppb