Chromium (total)

Camp Pendleton (South)

Chromium is a naturally occurring metal, but industrial uses can elevate its levels in water. One form, hexavalent chromium, causes cancer. Total chromium is not a good indicator of the amount of hexavalent chromium in drinking water.

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151

Samples

Samples exceeding legal limit (MCL)

Samples exceeding
health guidelines

Testing results - average by year

Year	Average result	Samples taken	Detections	Range of results
2013	0.123 ppb	6	2	ND - 0.430 ppb
2014	0.0324 ppb	25	2	ND - 0.520 ppb
2015	ND	24	0	ND
2016	ND	20	0	ND
2017	ND	23	0	ND
2018	ND	28	0	ND
2019	ND	25	0	ND

ppb = parts per billion

State and national drinking water standards and health guidelines

EPA Maximum Contaminant
Level (MCL) 100 ppb

The legal limit for total chromium, established in 1991, was based on a 1958 toxicity study in laboratory animals, and applies to both the less-toxic trivalent chromium and the more-toxic hexavalent chromium forms of this compound. This limit does not protect against the risk of cancer from ingestion of hexavalent chromium.

ppb = parts per billion

All test results

Date	Lab ID	Result
2013-11-13	201311140275AM	0.310 ppb
2013-11-20	201311210182AM	0.430 ppb
2013-11-21	201311220146AM	ND
2013-11-21	201311220148AM	ND
2013-11-22	201311230024AM	ND
2013-11-26	201311260884AM	ND
2014-01-27	9590-039-1100	ND
2014-01-29	9590-032-1115	ND
2014-02-13	9590-030-1115	ND
2014-04-23	9590-009-0944	ND
2014-04-23	9590-034-1115	ND
2014-04-24	9590-022-1115	ND
2014-04-25	9590-014-1150	ND
2014-04-25	9590-036-1115	ND
2014-04-28	9590-035-1210	ND
2014-05-19	201405190210AM	0.290 ppb
2014-05-21	9590-030-1015	ND
2014-05-21	9590-039-1050	ND
2014-05-22	201405220658AM	ND
2014-05-23	9590-049-1030	ND
2014-05-29	201405290743AM	0.520 ppb
2014-05-30	201405310025AM	ND
2014-06-11	9590-043-1140	ND
2014-06-12	9590-044-1220	ND
2014-06-24	9590-037-1100	ND
2014-07-09	9590-049-1030	ND
2014-07-14	9590-039-1120	ND
2014-07-17	9590-030-1140	ND
2014-10-28	9590-030-1115	ND
2014-11-06	9590-049-1155	ND
2014-11-20	9590-039-1255	ND
2015-01-16	9590-030-1035	ND
2015-01-21	9590-049-1315	ND
2015-01-26	9590-039-1210	ND
2015-03-13	9590-043-1336	ND
2015-03-13	9590-044-1310	ND
2015-03-16	9590-020-1220	ND
2015-03-16	9590-037-1250	ND
2015-03-18	9590-019-1050	ND
2015-03-18	9590-034-1242	ND
2015-03-19	9590-018-0800	ND
2015-03-24	9590-022-1105	ND
2015-04-01	9590-036-1025	ND
2015-04-09	9590-014-0945	ND
2015-05-11	9590-039-1145	ND
2015-05-12	9590-049-1135	ND
2015-05-20	9590-030-1000	ND
2015-07-24	9590-030-1020	ND
2015-07-27	9590-039-1300	ND
2015-08-13	9590-035-1046	ND
2015-08-24	9590-049-1145	ND
2015-08-24	9590-051-1230	ND
2015-10-14	9590-039-1230	ND
2015-10-14	9590-049-1120	ND
2015-10-15	9590-030-1215	ND
2016-01-13	9590-049-1230	ND
2016-02-05	9590-039-1115	ND
2016-02-19	9590-030-1050	ND
2016-04-21	9590-034-1236	ND
2016-04-21	9590-035-1205	ND
2016-04-26	9590-022-1105	ND
2016-04-26	9590-037-1220	ND
2016-04-27	9590-019-1248	ND
2016-04-28	9590-043-1145	ND
2016-04-28	9590-044-1102	ND
2016-04-29	9590-014-1130	ND
2016-04-29	9590-036-1048	ND
2016-05-03	9590-030-1200	ND
2016-05-05	9590-039-1115	ND
2016-05-05	9590-051-1045	ND
2016-05-12	9590-020-1130	ND
2016-08-03	9590-039-1200	ND
2016-08-08	9590-030-1130	ND
2016-11-01	9590-030-1115	ND
2016-11-21	9590-039-1325	ND
2017-01-09	9590-030-1140	ND
2017-02-15	9590-039-1120	ND
2017-03-07	9590-036-1110	ND
2017-03-08	9590-014-1105	ND
2017-03-09	9590-020-1115	ND
2017-03-09	9590-035-1150	ND
2017-03-09	9590-051-1230	ND
2017-03-17	9590-019-1146	ND
2017-03-17	9590-034-1240	ND
2017-03-17	9590-037-1115	ND
2017-03-23	9590-022-1250	ND
2017-03-30	9590-043-1135	ND
2017-03-30	9590-044-1115	ND
2017-05-10	9590-039-1215	ND
2017-05-11	9590-030-1245	ND
2017-07-13	9590-030-1300	ND
2017-07-21	9590-049-1310	ND
2017-07-24	9590-039-1030	ND
2017-11-01	9590-039-1200	ND
2017-11-17	9590-032-1045	ND
2017-12-04	9590-030-1245	ND
2017-12-13	9590-018-0740	ND
2017-12-28	9590-049-1110	ND
2018-01-09	9590-032-1320	ND
2018-01-25	9590-039-1120	ND
2018-02-05	9590-030-1315	ND
2018-02-08	9590-014-1235	ND
2018-02-12	9590-036-1335	ND
2018-02-12	9590-049-1110	ND
2018-02-14	9590-018-0740	ND
2018-03-14	9590-051-1242	ND
2018-03-15	9590-020-1130	ND
2018-03-15	9590-035-1200	ND
2018-03-21	9590-034-1245	ND
2018-03-22	9590-043-1125	ND
2018-03-22	9590-044-1020	ND
2018-03-26	9590-022-1340	ND
2018-03-29	9590-019-1225	ND
2018-03-29	9590-037-1302	ND
2018-04-24	9590-039-1220	ND
2018-04-25	9590-030-1300	ND
2018-05-01	9590-049-1300	ND
2018-05-16	9590-032-1230	ND
2018-07-23	9590-039-1145	ND
2018-07-25	9590-030-1152	ND
2018-07-27	9590-032-0822	ND
2018-08-13	9590-049-1000	ND
2018-11-06	9590-030-1245	ND
2018-11-13	9590-032-1245	ND
2018-11-13	9590-049-1230	ND
2018-11-19	9590-039-1100	ND
2019-01-09	9590-030-1230	ND
2019-01-23	9590-039-1200	ND
2019-01-28	9590-032-0945	ND
2019-01-28	9590-049-1040	ND
2019-01-30	9590-020-1052	ND
2019-01-31	9590-034-1100	ND
2019-02-21	9590-014-1320	ND
2019-02-28	9590-051-1042	ND
2019-03-01	9590-035-1102	ND
2019-03-15	9590-043-1035	ND
2019-03-15	9590-044-1120	ND
2019-03-21	9590-019-1136	ND
2019-03-21	9590-037-1100	ND
2019-05-07	9590-032-0835	ND
2019-05-07	9590-049-1025	ND
2019-05-08	9590-039-1215	ND
2019-05-09	9590-030-1100	ND
2019-07-24	9590-039-1200	ND
2019-07-30	9590-032-0730	ND
2019-07-30	9590-049-0830	ND
2019-09-19	9590-030-0638	ND
2019-10-30	9590-030-1045	ND
2019-11-12	9590-039-1220	ND
2019-11-14	9590-032-0710	ND
2019-11-14	9590-049-0810	ND