Nitrate

City of Tucson

Nitrate, a fertilizer chemical, frequently contaminates drinking water due to agricultural and urban runoff, and discharges from municipal wastewater treatment plants and septic tanks. Excessive nitrate in water can cause oxygen deprivation in infants and increase the risk of cancer. Click here to read more about nitrate.

MORE ABOUT THIS CONTAMINANT

655

Samples

Samples exceeding legal limit (MCL)

646

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	1.96 ppm	113	112	ND - 6.29 ppm
2015	1.80 ppm	112	110	ND - 7.89 ppm
2016	1.69 ppm	108	106	ND - 5.78 ppm
2017	1.96 ppm	110	109	ND - 6.58 ppm
2018	1.73 ppm	107	105	ND - 6.59 ppm
2019	1.88 ppm	105	104	ND - 6.41 ppm

ppm = parts per million

State and national drinking water standards and health guidelines

EWG Health Guideline 0.14 ppm

The EWG Health Guideline of 0.14 ppm for nitrate was defined by EWG . This health guideline protects against cancer and harm to fetal growth and development.

EPA Maximum Contaminant
Level (MCL) 10 ppm

The legal limit for nitrate, established in 1962, was developed to protect infants from acute methemoglobinemia, a life-threatening disorder of oxygen transport in the body. This limit does not fully protect against the risk of cancer and harm to the developing fetus.

ppm = parts per million

All test results

Date	Lab ID	Result
2014-01-06	L140009-06	3.76 ppm
2014-01-09	L140007-01	1.54 ppm
2014-01-09	L140007-02	1.03 ppm
2014-01-09	L140007-04	0.416 ppm
2014-01-09	L140007-06	1.16 ppm
2014-01-09	L140007-08	1.75 ppm
2014-01-13	L140016-02	3.06 ppm
2014-01-13	L140016-03	1.66 ppm
2014-01-13	L140016-04	0.963 ppm
2014-01-13	L140016-05	2.82 ppm
2014-01-13	L140016-06	4.09 ppm
2014-01-13	L140016-07	1.46 ppm
2014-01-14	L140017-01	3.44 ppm
2014-01-14	L140017-02	2.87 ppm
2014-01-14	L140017-03	2.36 ppm
2014-01-14	L140017-04	2.02 ppm
2014-01-14	L140017-05	1.02 ppm
2014-01-14	L140017-06	0.953 ppm
2014-01-15	L140018-04	0.821 ppm
2014-01-15	L140018-05	0.950 ppm
2014-01-16	L140019-01	0.651 ppm
2014-01-16	L140019-04	2.30 ppm
2014-01-16	L140019-05	5.44 ppm
2014-01-21	L140047-01I	2.25 ppm
2014-01-21	L140047-02	0.852 ppm
2014-01-21	L140047-03	1.83 ppm
2014-01-21	L140047-05	0.778 ppm
2014-01-21	L140047-06	1.06 ppm
2014-01-23	L140050-01	2.14 ppm
2014-01-23	L140050-02	2.63 ppm
2014-01-27	L140091-01	2.18 ppm
2014-01-27	L140091-02	1.73 ppm
2014-01-27	L140091-03	0.852 ppm
2014-01-27	L140091-04	0.890 ppm
2014-01-27	L140091-05	0.480 ppm
2014-01-27	L140091-06	1.03 ppm
2014-01-28	L140096-01	1.03 ppm
2014-01-28	L140096-02	1.43 ppm
2014-01-28	L140096-03	3.14 ppm
2014-01-28	L140096-04	1.52 ppm
2014-01-28	L140096-05	1.36 ppm
2014-01-28	L140096-06	1.70 ppm
2014-01-29	L140097-01	6.29 ppm
2014-01-29	L140097-02	0.726 ppm
2014-01-29	L140097-03	1.04 ppm
2014-01-30	L140098-01	1.01 ppm
2014-01-30	L140098-02	2.60 ppm
2014-01-30	L140098-03	1.11 ppm
2014-01-30	L140098-04	1.36 ppm
2014-01-30	L140098-05	1.27 ppm
2014-01-30	L140098-06	1.08 ppm
2014-02-03	L140113-03	0.756 ppm
2014-02-03	L140113-04	2.57 ppm
2014-02-03	L140113-05	1.59 ppm
2014-02-06	L140115-01	0.256 ppm
2014-02-06	L140115-03	2.70 ppm
2014-02-06	L140115-04	3.20 ppm
2014-02-06	L140115-05	2.55 ppm
2014-02-10	L140143-01	4.29 ppm
2014-02-10	L140143-02	1.23 ppm
2014-02-10	L140143-03	1.97 ppm
2014-02-10	L140143-04	1.48 ppm
2014-02-10	L140143-05	1.24 ppm
2014-02-11	L140144-02	1.61 ppm
2014-02-12	L140146-01	ND
2014-02-12	L140146-02	1.54 ppm
2014-02-13	L140152-01	0.969 ppm
2014-02-13	L140152-02	0.841 ppm
2014-02-13	L140152-03	1.67 ppm
2014-02-13	L140152-05	1.27 ppm
2014-02-27	L140237-01	2.58 ppm
2014-02-27	L140237-03	2.28 ppm
2014-02-27	L140237-04	3.51 ppm
2014-02-27	L140237-05	2.86 ppm
2014-03-03	L140240-01	4.53 ppm
2014-03-03	L140240-02	1.26 ppm
2014-03-03	L140240-03	1.15 ppm
2014-03-03	L140240-04	2.01 ppm
2014-03-03	L140240-05	1.73 ppm
2014-03-04	L140238-01	2.02 ppm
2014-03-04	L140238-02	1.92 ppm
2014-03-04	L140238-03	1.81 ppm
2014-03-04	L140238-04	3.48 ppm
2014-03-04	L140238-05	1.86 ppm
2014-03-04	L140238-06	0.788 ppm
2014-03-05	L140241-01	1.04 ppm
2014-03-05	L140241-03	1.54 ppm
2014-03-05	L140241-05	0.646 ppm
2014-03-06	L140243-01	1.04 ppm
2014-03-06	L140243-02	1.32 ppm
2014-03-06	L140243-04	1.61 ppm
2014-03-06	L140243-05	1.30 ppm
2014-03-06	L140243-06	1.31 ppm
2014-03-12	L140286-01	1.21 ppm
2014-03-12	L140286-02	1.72 ppm
2014-04-09	L140417-02	2.40 ppm
2014-04-09	L140417-03	5.07 ppm
2014-04-09	L140417-05	0.647 ppm
2014-04-16	L140450-01	5.95 ppm
2014-04-16	L140450-02	4.85 ppm
2014-04-16	L140450-04	1.11 ppm
2014-04-16	L140450-05	2.23 ppm
2014-04-16	L140450-06	2.07 ppm
2014-04-17	L140451-01	0.906 ppm
2014-04-17	L140451-02	1.47 ppm
2014-04-23	L140488-01	1.18 ppm
2014-07-01	L140633-01	0.638 ppm
2014-07-09	L140809-01	5.51 ppm
2014-07-15	L140506-01	1.84 ppm
2014-08-14	L140989-01	2.41 ppm
2014-09-15	L141090-01	5.59 ppm
2014-10-08	L141180-01	4.19 ppm
2014-11-06	L141315-01	2.75 ppm
2015-01-06	L1500001-01	1.17 ppm
2015-01-06	L150001-03	0.914 ppm
2015-01-06	L150001-04	1.03 ppm
2015-01-07	L150002-01	1.61 ppm
2015-01-07	L150002-02	2.99 ppm
2015-01-07	L150002-03	1.62 ppm
2015-01-07	L150002-04	1.19 ppm
2015-01-07	L150002-05	2.87 ppm
2015-01-07	L150002-06	4.14 ppm
2015-01-07	L150016-01	1.32 ppm
2015-01-08	L150017-01	3.23 ppm
2015-01-12	L150030-01	0.879 ppm
2015-01-12	L150030-02	0.796 ppm
2015-01-12	L150030-03	0.706 ppm
2015-01-13	L150031-01	1.99 ppm
2015-01-13	L150031-02	1.75 ppm
2015-01-20	L150067-01	5.93 ppm
2015-01-20	L150067-02	0.816 ppm
2015-01-20	L150067-03	1.000 ppm
2015-01-20	L150078-01	0.852 ppm
2015-01-21	L150068-01	4.55 ppm
2015-01-21	L150068-02	3.85 ppm
2015-01-21	L150068-04	1.17 ppm
2015-01-21	L150068-05	1.26 ppm
2015-01-21	L150068-06	0.394 ppm
2015-01-22	L150070-01	1.08 ppm
2015-01-22	L150070-02	1.14 ppm
2015-01-22	L150070-02T	2.51 ppm
2015-01-22	L150070-05	0.627 ppm
2015-01-22	L1500780-03	0.972 ppm
2015-01-26	L150104-01	0.636 ppm
2015-01-26	L150104-02	1.000 ppm
2015-01-26	L150104-03	0.416 ppm
2015-01-26	L150104-04	0.566 ppm
2015-01-26	L150104-05	0.965 ppm
2015-01-26	L150104-06	0.936 ppm
2015-01-26	L150104-07	0.792 ppm
2015-01-27	L150105-01	0.854 ppm
2015-01-27	L150105-02	2.03 ppm
2015-01-27	L150105-03	1.59 ppm
2015-01-27	L150105-04	0.660 ppm
2015-01-28	L150106-01	1.84 ppm
2015-01-28	L150106-02	0.467 ppm
2015-01-28	L150106-03	1.45 ppm
2015-01-28	L150106-04	0.584 ppm
2015-01-28	L150106-05	2.10 ppm
2015-01-28	L150106-06	1.75 ppm
2015-01-28	L150106-07	1.19 ppm
2015-01-29	L150107-01	1.40 ppm
2015-01-29	L150107-02	1.90 ppm
2015-01-29	L150107-03	1.27 ppm
2015-01-29	L150107-04	2.89 ppm
2015-02-02	L150142-01	0.971 ppm
2015-02-05	L150162-01	0.791 ppm
2015-02-05	L150162-02	1.34 ppm
2015-02-10	L150184-01	1.82 ppm
2015-02-17	L150197-01	1.88 ppm
2015-02-17	L150197-02	1.96 ppm
2015-02-17	L150197-05	2.10 ppm
2015-02-23	L150234-01	1.44 ppm
2015-02-24	L1502226-01	1.07 ppm
2015-02-24	L150235-01	4.62 ppm
2015-03-02	L150258-01	0.776 ppm
2015-03-02	L150258-02	1.67 ppm
2015-03-10	L150291-02	2.84 ppm
2015-04-14	L150434-01	2.37 ppm
2015-04-14	L150434-03	ND
2015-04-14	L150458-01	1.73 ppm
2015-04-16	L150435-01	0.874 ppm
2015-04-16	L150435-02	0.730 ppm
2015-04-16	L150435-03	1.20 ppm
2015-04-23	L150492-01	2.56 ppm
2015-04-23	L150492-02	2.14 ppm
2015-04-30	L150518-01	3.94 ppm
2015-04-30	L150518-02	2.93 ppm
2015-04-30	L150518-03	0.627 ppm
2015-04-30	L150518-04	0.979 ppm
2015-05-06	L150120-01	1.46 ppm
2015-05-07	L150556-01	2.14 ppm
2015-05-07	L150556-02	2.32 ppm
2015-05-07	L150556-03	3.83 ppm
2015-05-12	L150550-01	5.69 ppm
2015-05-14	L150557-01	0.891 ppm
2015-05-14	L150590-01	0.663 ppm
2015-05-14	L150590-02	1.28 ppm
2015-06-01	L150658-01	0.539 ppm
2015-06-03	L150668-01	5.78 ppm
2015-06-10	L150699-01	1.19 ppm
2015-07-16	L150851-01	1.81 ppm
2015-08-25	L151011-01I	1.39 ppm
2015-09-10	L151046-01	ND
2015-09-10	L151046-02	1.52 ppm
2015-09-10	L151072-01	0.656 ppm
2015-09-29	L151152-01	7.89 ppm
2015-11-05	L151294-01	6.49 ppm
2015-11-05	L151294-03	5.32 ppm
2015-11-05	L151294-04	0.975 ppm
2015-12-02	L151399-01	1.22 ppm
2015-12-02	L151399-02	1.16 ppm
2015-12-02	L151399-03	0.263 ppm
2015-12-02	L151399-04	0.493 ppm
2015-12-03	L151400-01	4.69 ppm
2015-12-03	L151400-02	2.00 ppm
2015-12-03	L151400-03	1.01 ppm
2015-12-03	L151400-04	1.01 ppm
2015-12-03	L151400-05	1.08 ppm
2015-12-08	L151410-03	0.773 ppm
2015-12-08	L151410-04	1.02 ppm
2015-12-10	L151413-03	1.18 ppm
2015-12-10	L151413-04	2.97 ppm
2015-12-17	L151449-01	1.79 ppm
2015-12-29	L151499-01	3.83 ppm
2016-01-11	L160042-01I	0.912 ppm
2016-01-11	L160042-03I	0.931 ppm
2016-01-11	L160042-04I	1.26 ppm
2016-01-12	L160043-01I	1.74 ppm
2016-01-12	L160043-02I	3.38 ppm
2016-01-12	L160043-03I	1.68 ppm
2016-01-12	L160043-04I	ND
2016-01-12	L160043-05I	2.63 ppm
2016-01-13	L160045-02I	0.671 ppm
2016-01-13	L160045-04I	0.628 ppm
2016-01-13	L160045-05I	0.784 ppm
2016-01-14	L160046-01I	0.942 ppm
2016-01-14	L160046-03I	0.687 ppm
2016-01-14	L160046-04I	3.31 ppm
2016-01-14	L160046-05I	3.62 ppm
2016-01-19	L160066-01I	1.54 ppm
2016-01-19	L160066-02I	0.428 ppm
2016-01-19	L160066-03I	1.11 ppm
2016-01-19	L160066-04I	1.44 ppm
2016-01-19	L160066-05I	2.59 ppm
2016-01-20	L160068-01I	1.27 ppm
2016-01-20	L160068-02I	0.599 ppm
2016-01-20	L160068-03I	1.11 ppm
2016-01-20	L160068-04I	0.468 ppm
2016-01-20	L160068-05I	0.712 ppm
2016-01-21	L160069-01I	0.380 ppm
2016-01-21	L160069-02I	0.574 ppm
2016-01-21	L160069-03I	0.916 ppm
2016-01-21	L160069-04I	1.49 ppm
2016-01-21	L160069-05I	0.860 ppm
2016-01-25	L160091-01I	1.22 ppm
2016-01-25	L160091-02I	1.51 ppm
2016-01-25	L160091-03I	3.13 ppm
2016-01-25	L160091-04I	2.30 ppm
2016-01-25	L160091-05I	2.24 ppm
2016-01-26	L160092-01I	0.745 ppm
2016-01-26	L160092-03I	0.552 ppm
2016-01-26	L160092-04I	1.16 ppm
2016-01-26	L160092-05I	2.54 ppm
2016-01-27	L160094-01I	3.12 ppm
2016-01-27	L160094-02I	2.76 ppm
2016-01-27	L160094-04I	2.79 ppm
2016-01-27	L160094-05I	1.02 ppm
2016-01-28	L160104-02I	2.28 ppm
2016-01-28	L160104-03I	1.80 ppm
2016-01-28	L160104-04I	2.07 ppm
2016-01-28	L160118-01	1.71 ppm
2016-02-01	L160119-01	1.92 ppm
2016-02-01	L160119-03I	1.84 ppm
2016-02-01	L160119-04I	1.71 ppm
2016-02-02	L160122-01I	0.748 ppm
2016-02-02	L160122-02I	1.56 ppm
2016-02-02	L160122-03I	0.879 ppm
2016-02-02	L160122-04I	0.676 ppm
2016-02-02	L160122-05I	1.17 ppm
2016-02-03	L160123-01I	1.82 ppm
2016-02-03	L160123-04I	0.936 ppm
2016-02-04	L160125-01I	1.27 ppm
2016-02-04	L160125-02I	2.42 ppm
2016-02-04	L160125-03I	1.97 ppm
2016-02-04	L160125-04I	2.05 ppm
2016-02-08	L160143-02I	1.27 ppm
2016-02-08	L160143-03I	3.89 ppm
2016-02-08	L160143-05I	0.880 ppm
2016-02-09	L160144-02I	1.51 ppm
2016-02-09	L160144-03I	1.28 ppm
2016-02-09	L160144-04I	1.42 ppm
2016-02-09	L160144-05I	1.11 ppm
2016-02-10	L160145-03I	0.999 ppm
2016-02-10	L160145-04I	0.284 ppm
2016-02-10	L160145-05I	0.621 ppm
2016-02-11	L160148-01	0.809 ppm
2016-02-11	L160148-02T	1.84 ppm
2016-02-11	L160148-04T	2.81 ppm
2016-02-11	L160148-05I	0.718 ppm
2016-02-11	L160171-01I	5.41 ppm
2016-02-16	L160172-03I	1.84 ppm
2016-02-16	L160172-04I	3.27 ppm
2016-02-17	L160173-01I	ND
2016-02-17	L160173-02	1.59 ppm
2016-02-18	L160178-04	0.797 ppm
2016-02-23	L160210-01	0.995 ppm
2016-02-23	L160210-02	0.306 ppm
2016-02-23	L160210-03	0.517 ppm
2016-02-24	L160211-01J	1.71 ppm
2016-02-24	L160211-02J	0.897 ppm
2016-02-24	L160211-03J	0.619 ppm
2016-02-25	L160212-03	1.13 ppm
2016-02-29	L160245-01	4.51 ppm
2016-02-29	L160245-02	0.921 ppm
2016-03-01	L160246-03J	2.07 ppm
2016-03-02	L160247-01	1.03 ppm
2016-03-07	L160268-02J	1.18 ppm
2016-03-10	L160280-02J	1.18 ppm
2016-03-10	L160280-03T	1.31 ppm
2016-04-20	L160468-01	2.24 ppm
2016-04-27	L160497-05	2.60 ppm
2016-04-28	L160498-01	3.42 ppm
2016-04-28	L160498-02	3.34 ppm
2016-04-28	L160498-04	2.68 ppm
2016-05-02	L160516-01	5.78 ppm
2016-05-03	L160517-01	3.88 ppm
2016-05-05	L160525-02	1.79 ppm
2016-05-31	L160656-01I	1.76 ppm
2016-05-31	L160656-02I	1.74 ppm
2016-06-14	L160697-01I	1.41 ppm
2016-06-16	L160723-01I	3.43 ppm
2016-10-04	L161215-01	4.87 ppm
2017-01-09	L170027-02	1.36 ppm
2017-01-09	L170027-03	1.21 ppm
2017-01-09	L170027-05	1.70 ppm
2017-01-09	L170027-06	1.60 ppm
2017-01-10	L170028-01	5.39 ppm
2017-01-10	L170028-02	1.89 ppm
2017-01-10	L170028-04	2.88 ppm
2017-01-10	L170028-05	4.04 ppm
2017-01-11	L170029-01	1.48 ppm
2017-01-11	L170029-02	1.05 ppm
2017-01-11	L170029-03	1.43 ppm
2017-01-11	L170029-04	2.67 ppm
2017-01-11	L170029-05	1.87 ppm
2017-01-12	L170030-01	3.05 ppm
2017-01-17	L170052-01	1.02 ppm
2017-01-17	L170052-02	1.57 ppm
2017-01-17	L170052-03	2.25 ppm
2017-01-17	L170052-04	1.27 ppm
2017-01-17	L170052-05	0.842 ppm
2017-01-17	L170052-06	1.03 ppm
2017-01-18	L170053-01	0.824 ppm
2017-01-18	L170053-02	0.441 ppm
2017-01-18	L170053-03	0.952 ppm
2017-01-18	L170053-04	0.963 ppm
2017-01-18	L170053-05	ND
2017-01-19	L170054-01	0.962 ppm
2017-01-19	L170054-02	1.19 ppm
2017-01-19	L170054-03	2.73 ppm
2017-01-23	L170086-01	2.62 ppm
2017-01-23	L170086-03	1.09 ppm
2017-01-23	L170086-04	1.53 ppm
2017-01-24	L170089-01	2.32 ppm
2017-01-24	L170089-02	0.951 ppm
2017-01-25	L170090-02	0.832 ppm
2017-01-25	L170090-03	0.928 ppm
2017-01-25	L170090-06	1.98 ppm
2017-01-26	L170108-01	0.864 ppm
2017-01-30	L170119-01	1.27 ppm
2017-01-30	L170119-02	1.55 ppm
2017-01-30	L170119-03	1.02 ppm
2017-01-30	L170119-04	2.89 ppm
2017-01-30	L170119-05	1.76 ppm
2017-01-30	L170119-06	0.278 ppm
2017-01-31	L170120-01	1.54 ppm
2017-01-31	L170120-02	2.88 ppm
2017-01-31	L170120-04	4.20 ppm
2017-01-31	L170120-06	1.62 ppm
2017-02-01	L170154-01	1.57 ppm
2017-02-01	L170154-02	1.17 ppm
2017-02-02	L170158-01	1.08 ppm
2017-02-02	L170158-02	0.913 ppm
2017-02-02	L170158-03	2.39 ppm
2017-02-02	L170158-04	0.625 ppm
2017-02-02	L170158-05	1.27 ppm
2017-02-06	L170146-01	0.882 ppm
2017-02-06	L170146-02	1.12 ppm
2017-02-06	L170146-04	0.651 ppm
2017-02-07	L170148-01	3.14 ppm
2017-02-07	L170148-02	1.30 ppm
2017-02-07	L170148-03	1.38 ppm
2017-02-09	L170150-01	1.21 ppm
2017-02-09	L170150-02	1.05 ppm
2017-02-09	L170150-03	0.971 ppm
2017-02-09	L170150-04	2.50 ppm
2017-02-09	L170150-05	1.99 ppm
2017-02-14	L170197-01T	0.995 ppm
2017-02-15	L170209-01	5.86 ppm
2017-02-15	L170211-01	0.635 ppm
2017-02-15	L170211-02	0.715 ppm
2017-02-16	L170213-01	3.29 ppm
2017-02-16	L170213-02	2.56 ppm
2017-02-21	L170224-01	1.38 ppm
2017-02-21	L170224-02T	2.48 ppm
2017-02-21	L170224-04T	2.25 ppm
2017-02-21	L170224-05T	3.02 ppm
2017-02-21	L170224-06T	2.86 ppm
2017-02-22	L170264-01T	4.78 ppm
2017-02-23	L170255-01T	1.44 ppm
2017-02-27	L170267-01T	3.29 ppm
2017-02-27	L170267-02T	3.42 ppm
2017-03-01	L170294-01T	2.20 ppm
2017-03-02	L170276-01T	0.984 ppm
2017-03-07	L170318-01T	0.724 ppm
2017-03-08	L170310-01T	1.31 ppm
2017-03-08	L170310-02T	3.04 ppm
2017-03-08	L170310-03T	0.778 ppm
2017-03-08	L170310-04T	0.901 ppm
2017-03-14	L170356-01T	1.91 ppm
2017-03-14	L170356-02T	2.00 ppm
2017-03-15	L170365-02T	1.86 ppm
2017-03-16	L170366-01T	3.67 ppm
2017-03-16	L170366-02T	1.97 ppm
2017-03-16	L170366-03T	1.73 ppm
2017-03-16	L170366-04T	1.78 ppm
2017-04-03	L170450-02	3.72 ppm
2017-04-03	L170450-03	5.32 ppm
2017-04-03	L170450-05	3.23 ppm
2017-04-04	L170451-01	2.56 ppm
2017-04-04	L170451-02	0.636 ppm
2017-04-04	L170451-04	5.44 ppm
2017-04-04	L170451-05	1.15 ppm
2017-04-04	L170451-06	0.381 ppm
2017-04-05	L170470-01	4.28 ppm
2017-07-31	L170993-02	0.457 ppm
2017-08-07	L171019-01	4.15 ppm
2017-08-24	L171130-01	1.98 ppm
2017-08-31	L171153-01	1.09 ppm
2017-10-02	L171300-01	6.58 ppm
2017-10-02	L171300-03	0.486 ppm
2017-11-02	L171451-01	4.98 ppm
2018-01-10	L180019-02	2.14 ppm
2018-01-11	L180047-01	1.11 ppm
2018-01-11	L180047-02	ND
2018-01-11	L180047-03	0.636 ppm
2018-01-14	L180099-06	1.97 ppm
2018-01-16	L180054-01	0.904 ppm
2018-01-16	L180054-03	1.24 ppm
2018-01-16	L180054-05	1.53 ppm
2018-01-16	L180054-06	1.70 ppm
2018-01-16	L180054-07	0.668 ppm
2018-01-17	L180055-01	3.69 ppm
2018-01-17	L180055-02	6.59 ppm
2018-01-17	L180055-03	1.76 ppm
2018-01-17	L180055-04	0.656 ppm
2018-01-17	L180055-05	2.33 ppm
2018-01-17	L180055-06	3.99 ppm
2018-01-17	L180055-07	1.47 ppm
2018-01-18	L180056-01	0.356 ppm
2018-01-18	L180056-02	1.08 ppm
2018-01-18	L180056-03	1.52 ppm
2018-01-18	L180056-04	1.12 ppm
2018-01-18	L180056-05	0.837 ppm
2018-01-18	L180056-06	0.797 ppm
2018-01-18	L180056-08	3.01 ppm
2018-01-18	L180080-01	1.85 ppm
2018-01-22	L180089-02	0.620 ppm
2018-01-22	L180089-03	2.36 ppm
2018-01-22	L180089-04	0.602 ppm
2018-01-22	L180089-05	1.55 ppm
2018-01-22	L180089-07	1.45 ppm
2018-01-22	L180089-08	2.09 ppm
2018-01-23	L180090-02	1.04 ppm
2018-01-23	L180090-03	0.582 ppm
2018-01-23	L180090-04	0.997 ppm
2018-01-23	L180090-05	0.642 ppm
2018-01-23	L180090-06	0.592 ppm
2018-01-23	L180090-07	1.05 ppm
2018-01-24	L18-0099-08	0.644 ppm
2018-01-24	L180099-01	1.07 ppm
2018-01-24	L180099-02	0.916 ppm
2018-01-24	L180099-03	0.779 ppm
2018-01-24	L180099-04	2.24 ppm
2018-01-24	L180099-05	2.10 ppm
2018-01-24	L180099-07	0.616 ppm
2018-01-24	L180099-09	0.647 ppm
2018-01-24	L180110-01	1.80 ppm
2018-01-25	L180101-04	0.858 ppm
2018-01-25	L180101-05	0.856 ppm
2018-01-29	L180125-03	1.74 ppm
2018-01-29	L180125-04	1.62 ppm
2018-01-29	L180125-05	1.05 ppm
2018-01-29	L180125-06	3.58 ppm
2018-01-30	L180126-01	0.518 ppm
2018-01-30	L180126-02	0.910 ppm
2018-01-30	L180126-03	0.526 ppm
2018-01-30	L180126-04	2.24 ppm
2018-01-30	L180126-05	1.15 ppm
2018-01-30	L180126-06	1.24 ppm
2018-01-30	L180126-07	1.09 ppm
2018-01-31	L180127-01	1.36 ppm
2018-01-31	L180127-02	2.77 ppm
2018-01-31	L180127-03	2.11 ppm
2018-01-31	L180127-05	1.28 ppm
2018-01-31	L180127-07	0.330 ppm
2018-02-01	L180128-01	2.61 ppm
2018-02-01	L180128-02	2.57 ppm
2018-02-01	L180128-03	3.88 ppm
2018-02-01	L180128-04	1.35 ppm
2018-02-01	L180128-05	0.954 ppm
2018-02-01	L180128-07	2.18 ppm
2018-02-01	L180128-08	1.95 ppm
2018-02-05	L180148-01	1.77 ppm
2018-02-05	L180148-02	1.70 ppm
2018-02-05	L180148-03	1.86 ppm
2018-02-05	L180148-04	3.81 ppm
2018-02-05	L180148-06	3.47 ppm
2018-02-05	L180148-07	0.795 ppm
2018-02-06	L180149-01	1.01 ppm
2018-02-06	L180149-02	1.46 ppm
2018-02-06	L180149-03	2.82 ppm
2018-02-06	L180149-04	0.636 ppm
2018-02-06	L180149-05	0.906 ppm
2018-02-06	L180149-06	0.832 ppm
2018-02-06	L180149-07	1.17 ppm
2018-02-06	L180149-08	2.17 ppm
2018-02-07	L180150-01	1.65 ppm
2018-02-07	L180150-02	0.684 ppm
2018-02-07	L180150-03	1.18 ppm
2018-02-07	L180150-04	1.13 ppm
2018-02-08	L180170-01	3.36 ppm
2018-02-08	L180170-02	3.55 ppm
2018-02-22	L180243-01	2.43 ppm
2018-02-28	L180294-01	1.62 ppm
2018-03-06	L180308-02	5.79 ppm
2018-03-07	L180310-02	4.69 ppm
2018-04-26	L180570-01	5.22 ppm
2018-05-29	L180729-01	3.05 ppm
2018-05-30	L180728-01	2.41 ppm
2018-05-30	L180728-03	3.11 ppm
2018-05-30	L180728-04	0.547 ppm
2018-05-30	L180728-05	0.562 ppm
2018-06-06	L180763-01	ND
2018-06-07	L180771-01	0.384 ppm
2018-06-12	L180795-01	1.11 ppm
2018-06-20	L180821-01	3.18 ppm
2018-06-20	L180821-02	1.30 ppm
2018-12-06	L181629-01	5.80 ppm
2019-03-19	L190423-01 IOC	2.20 ppm
2019-04-01	L190499-02	1.38 ppm
2019-04-01	L190499-03	0.932 ppm
2019-04-01	L190499-05	1.65 ppm
2019-04-01	L190499-06	0.646 ppm
2019-04-04	L190541-01	2.27 ppm
2019-04-11	L190512-01	1.62 ppm
2019-04-11	L190512-02	3.52 ppm
2019-04-11	L190512-03	0.658 ppm
2019-04-11	L190512-04	1.08 ppm
2019-04-15	L190597-01	1.07 ppm
2019-04-15	L190597-02	3.25 ppm
2019-04-15	L190597-03	2.54 ppm
2019-04-15	L190597-04	3.78 ppm
2019-04-17	L190610-01	0.542 ppm
2019-04-17	L190610-03	0.760 ppm
2019-04-18	L190624-01	2.63 ppm
2019-04-18	L190624-02	0.583 ppm
2019-04-18	L190624-03	ND
2019-04-23	L190640-01	3.76 ppm
2019-04-23	L190640-02	0.946 ppm
2019-04-23	L190640-03	3.86 ppm
2019-04-23	L190640-04	0.657 ppm
2019-04-24	L190645-01	1.38 ppm
2019-04-24	L190645-02	2.59 ppm
2019-04-24	L190645-03	4.39 ppm
2019-04-25	L190648-01	1.10 ppm
2019-04-25	L190648-02	2.18 ppm
2019-04-25	L190648-03	0.637 ppm
2019-04-30	L190670-01	1.51 ppm
2019-04-30	L190670-02	0.298 ppm
2019-04-30	L190670-03	1.25 ppm
2019-05-01	L190678-02	1.23 ppm
2019-05-01	L190678-03	2.10 ppm
2019-05-01	L190678-04	1.20 ppm
2019-05-02	L190690-01	2.56 ppm
2019-05-02	L190690-02	0.620 ppm
2019-05-02	L190690-03	1.44 ppm
2019-05-06	L190704-03	0.670 ppm
2019-05-07	L190712-01	3.93 ppm
2019-05-07	L190712-02	0.876 ppm
2019-05-07	L190712-03	1.24 ppm
2019-05-08	L190725-01	1.49 ppm
2019-05-08	L190725-02	1.21 ppm
2019-05-09	L190728-01-20131	1.81 ppm
2019-05-13	L190741-01-20131	1.70 ppm
2019-05-13	L190741-02-20131	6.41 ppm
2019-05-14	L190748-02-20131	2.70 ppm
2019-05-15	L190761-01-20131	2.09 ppm
2019-05-15	L190761-02-20131	1.54 ppm
2019-05-15	L190761-03-20131	0.644 ppm
2019-05-16	L190767-01-20131	5.80 ppm
2019-05-20	L190783-02-20131	3.55 ppm
2019-05-20	L190783-03-20131	0.938 ppm
2019-05-28	L190813-01-06260	4.34 ppm
2019-05-28	L190813-02-06260	0.403 ppm
2019-05-28	L190813-03-06260	0.884 ppm
2019-05-28	L190813-04-06260	1.28 ppm
2019-05-30	L190835-01-06260	1.84 ppm
2019-05-30	L190835-02-06260	1.94 ppm
2019-05-30	L190835-03-06260	1.86 ppm
2019-05-30	L190835-04-06260	2.18 ppm
2019-05-30	L190835-05-06260	1.42 ppm
2019-05-30	L190835-06-06260	1.78 ppm
2019-06-03	L190837-01-06260	3.00 ppm
2019-06-03	L190837-02-06260	0.942 ppm
2019-06-03	L190837-03-06260	1.36 ppm
2019-06-03	L190837-04-06260	2.14 ppm
2019-06-03	L190837-05-06260	1.24 ppm
2019-06-04	L190851-01-06281	3.40 ppm
2019-06-04	L190851-03-06281	1.21 ppm
2019-06-04	L190851-04-06281	1.08 ppm
2019-06-04	L190851-05-06281	3.19 ppm
2019-06-06	L190879-01-06281	1.24 ppm
2019-06-06	L190879-02-06281	0.613 ppm
2019-06-06	L190879-03-06281	1.04 ppm
2019-06-06	L190879-04-06281	2.03 ppm
2019-06-06	L190879-05-06281	0.958 ppm
2019-06-11	L190893-01-06281	1.35 ppm
2019-06-11	L190893-02-06281	1.04 ppm
2019-06-11	L190893-03-06281	0.795 ppm
2019-06-11	L190893-04-06281	1.13 ppm
2019-06-12	L190903-01-06281	3.14 ppm
2019-06-13	L190907-01-07081	0.666 ppm
2019-06-13	L190907-02-07081	0.850 ppm
2019-06-13	L190907-03-07081	2.36 ppm
2019-06-13	L190907-04-07081	1.57 ppm
2019-06-25	L190968-01-07081	0.940 ppm
2019-06-27	L190983-01-08131	1.87 ppm
2019-08-20	L191266-01-10011	2.95 ppm
2019-08-20	L191266-02-10011	2.83 ppm
2019-08-22	L191282-01-10011	4.71 ppm
2019-08-22	L191282-02-10011	0.649 ppm
2019-09-09	L191400-01-10011	1.47 ppm
2019-09-09	L191400-02-10011	3.20 ppm
2019-09-10	L191408-01-10011	3.82 ppm
2019-09-10	L191408-02-10011	1.98 ppm
2019-09-11	L191425-01-10011	0.858 ppm
2019-09-11	L191425-02-10011	2.81 ppm
2019-09-11	L191425-03-10011	1.74 ppm
2019-09-12	L191433-01-10011	0.834 ppm
2019-09-16	L191452-01-10021	1.07 ppm
2019-11-19	L191822-01-01071	4.90 ppm
2019-11-20	L191829-01-01071	2.23 ppm
2019-12-17	L191992-01-01071	2.39 ppm