Dichloroacetic acid

City of Lindsay

Dichloroacetic acid, one of the group of five haloacetic acids regulated by federal standards, is formed when chlorine or other disinfectants are used to treat drinking water. Haloacetic acids and other disinfection byproducts increase the risk of cancer and may cause problems during pregnancy. Click here to read more about disinfection byproducts.

MORE ABOUT THIS CONTAMINANT

216

Samples

Samples exceeding legal limit (MCL)

108

Samples exceeding
health guidelines

Testing results - average by year

Year	Average result	Samples taken	Detections	Range of results
2014	4.49 ppb	34	11	ND - 58.0 ppb
2015	8.79 ppb	36	10	ND - 64.0 ppb
2016	8.63 ppb	38	20	ND - 38.0 ppb
2017	9.28 ppb	36	17	ND - 60.0 ppb
2018	14.7 ppb	36	24	ND - 63.0 ppb
2019	12.5 ppb	36	26	ND - 34.0 ppb

ppb = parts per billion

State and national drinking water standards and health guidelines

EWG Health Guideline 0.2 ppb

The EWG Health Guideline of 0.2 ppb for dichloroacetic acid was proposed in 2020 by the California Office of Environmental Health Hazard Assessment as a public health goal, the level of a drinking water contaminant that does not pose a significant health risk.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
2014-02-04	5810-900-1154	ND
2014-02-04	5810-901-1134	ND
2014-02-04	5810-902-1203	ND
2014-02-04	5810-903-1124	ND
2014-02-04	5810-904-1400	ND
2014-02-04	5810-905-1329	ND
2014-02-04	5810-906-1338	ND
2014-02-04	5810-907-1350	ND
2014-05-02	5810-900-1130	ND
2014-05-02	5810-901-1122	34.0 ppb
2014-05-02	5810-902-1151	8.50 ppb
2014-05-02	5810-903-1115	13.0 ppb
2014-05-02	5810-904-1224	ND
2014-05-02	5810-905-1203	4.50 ppb
2014-05-02	5810-906-1212	ND
2014-05-02	5810-907-1220	ND
2014-08-12	5810-900-1115	ND
2014-08-12	5810-901-1100	58.0 ppb
2014-08-12	5810-902-1132	ND
2014-08-12	5810-903-1205	2.40 ppb
2014-08-12	5810-904-1214	ND
2014-08-12	5810-905-1139	ND
2014-08-12	5810-906-1148	ND
2014-08-12	5810-907-1155	ND
2014-08-12	5810-908-1121	24.0 ppb
2014-11-04	5810-900-1113	2.50 ppb
2014-11-04	5810-901-1101	1.60 ppb
2014-11-04	5810-902-1125	1.30 ppb
2014-11-04	5810-903-1135	ND
2014-11-04	5810-904-1213	ND
2014-11-04	5810-905-1152	ND
2014-11-04	5810-906-1157	ND
2014-11-04	5810-907-1205	ND
2014-11-04	5810-908-1117	3.00 ppb
2015-02-03	5810-900-1124	ND
2015-02-03	5810-901-1100	ND
2015-02-03	5810-902-1123	ND
2015-02-03	5810-903-1051	ND
2015-02-03	5810-904-1213	ND
2015-02-03	5810-905-1144	ND
2015-02-03	5810-906-1155	ND
2015-02-03	5810-907-1203	ND
2015-02-03	5810-908-1118	ND
2015-05-01	5810-900-1108	ND
2015-05-01	5810-901-1128	64.0 ppb
2015-05-01	5810-902-1143	ND
2015-05-01	5810-903-1135	ND
2015-05-01	5810-904-1215	ND
2015-05-01	5810-905-1151	ND
2015-05-01	5810-906-1159	ND
2015-05-01	5810-907-1207	ND
2015-05-01	5810-908-1113	26.0 ppb
2015-08-07	5810-900-1149	ND
2015-08-07	5810-901-1137	34.0 ppb
2015-08-07	5810-902-1201	32.0 ppb
2015-08-07	5810-903-1129	38.0 ppb
2015-08-07	5810-904-1232	13.0 ppb
2015-08-07	5810-905-1210	4.40 ppb
2015-08-07	5810-906-1218	36.0 ppb
2015-08-07	5810-907-1224	35.0 ppb
2015-08-07	5810-908-1154	34.0 ppb
2015-11-10	5810-900-1056	ND
2015-11-10	5810-901-1115	ND
2015-11-10	5810-902-1133	ND
2015-11-10	5810-903-1124	ND
2015-11-10	5810-904-1208	ND
2015-11-10	5810-905-1144	ND
2015-11-10	5810-906-1151	ND
2015-11-10	5810-907-1201	ND
2015-11-10	5810-908-1102	ND
2016-01-06	5810-900-1202	ND
2016-01-14	5810-900-1204	ND
2016-02-04	5810-900-1115	ND
2016-02-04	5810-901-1108	ND
2016-02-04	5810-902-1200	ND
2016-02-04	5810-903-1059	ND
2016-02-04	5810-904-1217	ND
2016-02-04	5810-905-1132	ND
2016-02-04	5810-906-1141	ND
2016-02-04	5810-907-1149	ND
2016-02-04	5810-908-1122	ND
2016-05-06	5810-900-1143	5.00 ppb
2016-05-06	5810-901-1115	1.40 ppb
2016-05-06	5810-902-1134	8.80 ppb
2016-05-06	5810-903-1106	13.0 ppb
2016-05-06	5810-904-1219	3.50 ppb
2016-05-06	5810-905-1154	12.0 ppb
2016-05-06	5810-906-1203	ND
2016-05-06	5810-907-1215	ND
2016-05-06	5810-908-1126	25.0 ppb
2016-08-05	5810-900-1133	2.50 ppb
2016-08-05	5810-901-1120	38.0 ppb
2016-08-05	5810-902-1142	28.0 ppb
2016-08-05	5810-903-1111	36.0 ppb
2016-08-05	5810-904-1216	2.70 ppb
2016-08-05	5810-905-1150	ND
2016-08-05	5810-906-1201	ND
2016-08-05	5810-907-1208	ND
2016-08-05	5810-908-1129	15.0 ppb
2016-11-04	5810-900-1132	ND
2016-11-04	5810-901-1126	29.0 ppb
2016-11-04	5810-902-1145	2.30 ppb
2016-11-04	5810-903-1200	28.0 ppb
2016-11-04	5810-905-1152	2.70 ppb
2016-11-04	5810-906-1214	ND
2016-11-04	5810-907-1208	29.0 ppb
2016-11-04	5810-908-1136	31.0 ppb
2016-11-15	5810-904-1250	15.0 ppb
2017-02-06	5810-900-1212	ND
2017-02-06	5810-901-1224	ND
2017-02-06	5810-902-1200	ND
2017-02-06	5810-903-1120	1.20 ppb
2017-02-06	5810-904-1128	ND
2017-02-06	5810-905-1152	ND
2017-02-06	5810-906-1143	ND
2017-02-06	5810-907-1138	ND
2017-02-06	5810-908-1216	ND
2017-05-05	5810-900-1226	4.80 ppb
2017-05-05	5810-901-1250	50.0 ppb
2017-05-05	5810-902-1210	26.0 ppb
2017-05-05	5810-903-1115	ND
2017-05-05	5810-904-1125	ND
2017-05-05	5810-905-1155	ND
2017-05-05	5810-906-1145	ND
2017-05-05	5810-907-1135	ND
2017-05-05	5810-908-1235	60.0 ppb
2017-08-04	5810-900-1143	ND
2017-08-04	5810-901-1210	38.0 ppb
2017-08-04	5810-902-1137	15.0 ppb
2017-08-04	5810-903-1058	3.60 ppb
2017-08-04	5810-904-1236	ND
2017-08-04	5810-905-1127	ND
2017-08-04	5810-906-1116	ND
2017-08-04	5810-907-1106	ND
2017-08-04	5810-908-1149	19.0 ppb
2017-11-14	5810-900-1336	ND
2017-11-14	5810-901-1348	23.0 ppb
2017-11-14	5810-902-1332	3.70 ppb
2017-11-14	5810-903-1240	23.0 ppb
2017-11-14	5810-904-1250	23.0 ppb
2017-11-14	5810-905-1322	20.0 ppb
2017-11-14	5810-906-1308	6.20 ppb
2017-11-14	5810-907-1258	1.50 ppb
2017-11-14	5810-908-1342	16.0 ppb
2018-02-09	5810-900-1250	5.20 ppb
2018-02-09	5810-901-1303	23.0 ppb
2018-02-09	5810-902-1236	33.0 ppb
2018-02-09	5810-903-1144	14.0 ppb
2018-02-09	5810-904-1154	18.0 ppb
2018-02-09	5810-905-1233	26.0 ppb
2018-02-09	5810-906-1213	ND
2018-02-09	5810-907-1208	ND
2018-02-09	5810-908-1256	31.0 ppb
2018-05-04	5810-900-1405	ND
2018-05-04	5810-901-1422	63.0 ppb
2018-05-04	5810-902-1346	ND
2018-05-04	5810-903-1302	7.80 ppb
2018-05-04	5810-904-1309	2.10 ppb
2018-05-04	5810-905-1340	ND
2018-05-04	5810-906-1330	ND
2018-05-04	5810-907-0320	ND
2018-05-04	5810-908-1408	17.0 ppb
2018-08-10	5810-900-1154	1.40 ppb
2018-08-10	5810-901-1140	32.0 ppb
2018-08-10	5810-902-1203	34.0 ppb
2018-08-10	5810-903-1245	42.0 ppb
2018-08-10	5810-904-1304	ND
2018-08-10	5810-905-1214	ND
2018-08-10	5810-906-1224	ND
2018-08-10	5810-907-1235	ND
2018-08-10	5810-908-1148	20.0 ppb
2018-11-09	5810-900-1221	ND
2018-11-09	5810-901-1235	17.0 ppb
2018-11-09	5810-902-1206	20.0 ppb
2018-11-09	5810-903-1128	18.0 ppb
2018-11-09	5810-904-1135	21.0 ppb
2018-11-09	5810-905-1159	14.0 ppb
2018-11-09	5810-906-1149	24.0 ppb
2018-11-09	5810-907-1140	24.0 ppb
2018-11-09	5810-908-1225	23.0 ppb
2019-02-08	5810-900-1220	ND
2019-02-08	5810-901-1232	14.0 ppb
2019-02-08	5810-902-1212	4.60 ppb
2019-02-08	5810-903-1242	12.0 ppb
2019-02-08	5810-904-1132	4.50 ppb
2019-02-08	5810-905-1205	4.10 ppb
2019-02-08	5810-906-1159	11.0 ppb
2019-02-08	5810-907-1149	15.0 ppb
2019-02-08	5810-908-1225	1.90 ppb
2019-05-03	5810-900-1240	2.50 ppb
2019-05-03	5810-901-1218	34.0 ppb
2019-05-03	5810-902-1250	4.00 ppb
2019-05-03	5810-903-1150	9.50 ppb
2019-05-03	5810-904-1140	ND
2019-05-03	5810-905-1258	ND
2019-05-03	5810-906-1305	ND
2019-05-03	5810-907-1327	ND
2019-05-03	5810-908-1230	ND
2019-08-09	5810-900-1158	5.00 ppb
2019-08-09	5810-901-1131	33.0 ppb
2019-08-09	5810-902-1150	31.0 ppb
2019-08-09	5810-903-1112	31.0 ppb
2019-08-09	5810-904-1317	ND
2019-08-09	5810-905-1245	2.50 ppb
2019-08-09	5810-906-1254	ND
2019-08-09	5810-907-1234	ND
2019-08-09	5810-908-1204	30.0 ppb
2019-11-15	5810-900-1155	ND
2019-11-15	5810-901-1127	24.0 ppb
2019-11-15	5810-902-1218	22.0 ppb
2019-11-15	5810-903-1230	31.0 ppb
2019-11-15	5810-904-1322	32.0 ppb
2019-11-15	5810-905-1250	10.00 ppb
2019-11-15	5810-906-1258	26.0 ppb
2019-11-15	5810-907-1237	30.0 ppb
2019-11-15	5810-908-1201	27.0 ppb