Perchlorate
Yuima Municipal Water District Ida
Perchlorate, a component of rocket fuel, occurs both naturally and as a synthetic chemical. Ingested perchlorate interferes with thyroid function. Exposure to perchlorate during pregnancy and childhood can impair cognitive development. Read More.
According to the EPA, perchlorate likely contaminates the water of more than 16 million Americans. Perchlorate interferes with iodine uptake in the thyroid, which can result in reduced thyroid hormones and an impact on metabolism, physical development and cognitive development. Children and developing fetuses are the most at risk from perchlorate contamination.
Perchlorate is the only unregulated contaminant for which the EPA has attempted to set a federal drinking water standard since 1996. However, the agency has yet to propose a draft limit for this contaminant. Perchlorate in drinking water is regulated in Arizona, California, Massachusetts, New Jersey, New York and Texas. California set a public health goal of 1 part per billion for perchlorate in 2015.
Samples
Samples exceeding legal limit (MCL)
Samples exceeding
health guidelines
Testing results - average by year
| Year | Average result | Samples taken | Detections | Range of results |
|---|---|---|---|---|
| 2018 | 0.780 ppb | 65 | 10 | ND - 6.20 ppb |
| 2019 | 1.51 ppb | 51 | 15 | ND - 6.40 ppb |
| 2020 | 1.44 ppb | 49 | 14 | ND - 6.20 ppb |
| 2021 | 1.57 ppb | 48 | 16 | ND - 6.20 ppb |
| 2022 | 1.35 ppb | 61 | 17 | ND - 6.90 ppb |
| 2023 | 1.57 ppb | 62 | 19 | ND - 16.0 ppb |
ppb = parts per billion
State, National, and Health Guidelines for Drinking Water
EWG Health Guideline: 1 ppb
The EWG Health Guideline of 1 ppb for perchlorate was defined 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. This health guideline protects against hormone disruption.
ppb = parts per billion
All test results
| Date | Lab ID | Result |
|---|---|---|
| 2018-01-09 | CA3700938_004_004-201801091040 | ND |
| 2018-01-09 | CA3700938_005_005-201801090830 | 5.20 ppb |
| 2018-01-09 | CA3700938_006_006-201801090840 | ND |
| 2018-01-09 | CA3700938_017_017-201801090820 | ND |
| 2018-01-09 | CA3700938_012_012-201801090920 | 4.10 ppb |
| 2018-01-09 | CA3700938_020_020-201801090930 | ND |
| 2018-01-09 | CA3700938_026_026-201801091110 | ND |
| 2018-01-09 | CA3700938_047_047-201801090745 | 4.50 ppb |
| 2018-01-09 | CA3700938_025_025-201801090855 | ND |
| 2018-01-09 | CA3700938_031_031-201801091045 | 4.20 ppb |
| 2018-01-09 | CA3700938_048_048-201801091045 | ND |
| 2018-01-23 | CA3700938_011_011-201801230900 | ND |
| 2018-02-13 | CA3700938_017_017-201802131000 | ND |
| 2018-02-13 | CA3700938_025_025-201802130920 | ND |
| 2018-02-13 | CA3700938_037_037-201802131045 | ND |
| 2018-02-13 | CA3700938_026_026-201802131030 | ND |
| 2018-03-13 | CA3700938_026_026-201803131045 | ND |
| 2018-03-13 | CA3700938_025_025-201803130910 | ND |
| 2018-03-13 | CA3700938_017_017-201803130945 | ND |
| 2018-04-10 | CA3700938_026_026-201804100910 | ND |
| 2018-04-10 | CA3700938_017_017-201804100900 | ND |
| 2018-04-10 | CA3700938_020_020-201804101030 | ND |
| 2018-04-10 | CA3700938_031_031-201804100940 | ND |
| 2018-04-10 | CA3700938_006_006-201804100930 | ND |
| 2018-04-10 | CA3700938_012_012-201804100800 | ND |
| 2018-04-10 | CA3700938_025_025-201804100945 | ND |
| 2018-04-10 | CA3700938_047_047-201804101100 | ND |
| 2018-04-10 | CA3700938_005_005-201804101000 | ND |
| 2018-05-08 | CA3700938_026_026-201805081145 | ND |
| 2018-05-08 | CA3700938_025_025-201805080850 | ND |
| 2018-05-08 | CA3700938_017_017-201805080800 | ND |
| 2018-06-12 | CA3700938_025_025-201806121015 | ND |
| 2018-06-12 | CA3700938_026_026-201806120840 | ND |
| 2018-06-12 | CA3700938_017_017-201806120900 | ND |
| 2018-07-10 | CA3700938_004_004-201807101105 | ND |
| 2018-07-10 | CA3700938_012_012-201807100800 | ND |
| 2018-07-10 | CA3700938_026_026-201807101000 | ND |
| 2018-07-10 | CA3700938_031_031-201807100950 | 5.40 ppb |
| 2018-07-10 | CA3700938_005_005-201807100830 | 6.20 ppb |
| 2018-07-10 | CA3700938_020_020-201807101050 | ND |
| 2018-07-10 | CA3700938_006_006-201807100850 | ND |
| 2018-07-10 | CA3700938_017_017-201807101015 | ND |
| 2018-07-10 | CA3700938_047_047-201807101115 | 5.70 ppb |
| 2018-07-10 | CA3700938_025_025-201807100910 | ND |
| 2018-08-14 | CA3700938_025_025-201808140910 | ND |
| 2018-08-14 | CA3700938_017_017-201808140820 | ND |
| 2018-08-14 | CA3700938_026_026-201808140745 | ND |
| 2018-09-11 | CA3700938_017_017-201809110910 | ND |
| 2018-09-11 | CA3700938_025_025-201809110845 | ND |
| 2018-09-11 | CA3700938_026_026-201809110800 | ND |
| 2018-10-09 | CA3700938_020_020-201810090830 | ND |
| 2018-10-09 | CA3700938_012_012-201810091105 | ND |
| 2018-10-09 | CA3700938_026_026-201810091140 | ND |
| 2018-10-09 | CA3700938_005_005-201810090945 | 5.80 ppb |
| 2018-10-09 | CA3700938_025_025-201810090940 | ND |
| 2018-10-09 | CA3700938_006_006-201810090950 | ND |
| 2018-10-09 | CA3700938_017_017-201810090915 | ND |
| 2018-10-09 | CA3700938_047_047-201810091140 | 5.50 ppb |
| 2018-10-30 | CA3700938_031_031-201810300915 | 4.10 ppb |
| 2018-11-13 | CA3700938_017_017-201811130930 | ND |
| 2018-11-13 | CA3700938_026_026-201811131000 | ND |
| 2018-11-13 | CA3700938_025_025-201811130850 | ND |
| 2018-12-11 | CA3700938_026_026-201812110945 | ND |
| 2018-12-11 | CA3700938_017_017-201812110800 | ND |
| 2018-12-11 | CA3700938_025_025-201812110815 | ND |
| 2019-01-08 | CA3700938_012_012-201901080815 | 4.60 ppb |
| 2019-01-08 | CA3700938_005_005-201901080845 | 5.80 ppb |
| 2019-01-08 | CA3700938_006_006-201901080830 | ND |
| 2019-01-08 | CA3700938_026_026-201901081000 | ND |
| 2019-01-08 | CA3700938_048_048-201901081010 | ND |
| 2019-01-08 | CA3700938_011_011-201901080800 | ND |
| 2019-01-08 | CA3700938_031_031-201901080945 | 4.40 ppb |
| 2019-01-08 | CA3700938_037_037-201901081015 | ND |
| 2019-01-08 | CA3700938_004_004-201901081015 | ND |
| 2019-01-08 | CA3700938_017_017-201901080945 | ND |
| 2019-01-08 | CA3700938_025_025-201901080900 | ND |
| 2019-01-08 | CA3700938_047_047-201901081030 | 5.50 ppb |
| 2019-02-12 | CA3700938_026_026-201902121030 | ND |
| 2019-02-12 | CA3700938_025_025-201902120830 | ND |
| 2019-02-12 | CA3700938_017_017-201902121000 | ND |
| 2019-03-12 | CA3700938_025_025-201903121015 | ND |
| 2019-03-12 | CA3700938_048_048-201903121045 | ND |
| 2019-04-09 | CA3700938_020_020-201904091005 | ND |
| 2019-04-09 | CA3700938_031_031-201904091100 | 5.90 ppb |
| 2019-04-09 | CA3700938_012_012-201904091125 | 4.60 ppb |
| 2019-04-09 | CA3700938_006_006-201904091120 | ND |
| 2019-04-09 | CA3700938_025_025-201904091105 | ND |
| 2019-04-09 | CA3700938_026_026-201904090930 | ND |
| 2019-04-09 | CA3700938_047_047-201904091015 | 4.20 ppb |
| 2019-04-09 | CA3700938_005_005-201904091115 | 6.30 ppb |
| 2019-04-09 | CA3700938_017_017-201904090950 | ND |
| 2019-04-30 | CA3700938_020_020-201904300800 | ND |
| 2019-06-11 | CA3700938_005_005-201906111200 | 5.30 ppb |
| 2019-06-11 | CA3700938_025_025-201906111120 | ND |
| 2019-07-09 | CA3700938_006_006-201907090800 | ND |
| 2019-07-09 | CA3700938_012_012-201907090845 | ND |
| 2019-07-09 | CA3700938_017_017-201907091030 | ND |
| 2019-07-09 | CA3700938_026_026-201907091100 | ND |
| 2019-07-09 | CA3700938_047_047-201907091130 | 5.10 ppb |
| 2019-07-09 | CA3700938_025_025-201907090745 | ND |
| 2019-07-09 | CA3700938_031_031-201907090730 | 4.20 ppb |
| 2019-07-09 | CA3700938_005_005-201907090815 | 5.70 ppb |
| 2019-07-09 | CA3700938_020_020-201907091130 | ND |
| 2019-08-13 | CA3700938_025_025-201908130850 | ND |
| 2019-09-10 | CA3700938_025_025-201909101000 | ND |
| 2019-10-08 | CA3700938_005_005-201910080940 | 6.40 ppb |
| 2019-10-08 | CA3700938_025_025-201910081000 | ND |
| 2019-10-08 | CA3700938_020_020-201910081045 | ND |
| 2019-10-08 | CA3700938_031_031-201910080950 | ND |
| 2019-10-08 | CA3700938_006_006-201910080930 | ND |
| 2019-10-08 | CA3700938_012_012-201910080900 | 4.20 ppb |
| 2019-10-08 | CA3700938_017_017-201910080720 | ND |
| 2019-10-08 | CA3700938_026_026-201910080755 | ND |
| 2019-10-08 | CA3700938_047_047-201910081100 | 4.80 ppb |
| 2019-11-12 | CA3700938_025_025-201911121015 | ND |
| 2019-12-03 | CA3700938_025_025-201912030945 | ND |
| 2020-01-14 | CA3700938_048_048-202001140817 | ND |
| 2020-01-14 | CA3700938_005_005-202001141015 | 5.50 ppb |
| 2020-01-14 | CA3700938_020_020-202001140810 | ND |
| 2020-01-14 | CA3700938_025_025-202001141000 | ND |
| 2020-01-14 | CA3700938_047_047-202001140850 | 4.50 ppb |
| 2020-01-14 | CA3700938_004_004-202001140800 | ND |
| 2020-01-14 | CA3700938_011_011-202001141033 | ND |
| 2020-01-14 | CA3700938_012_012-202001141007 | 4.50 ppb |
| 2020-01-14 | CA3700938_017_017-202001140900 | ND |
| 2020-01-14 | CA3700938_026_026-202001140830 | ND |
| 2020-01-14 | CA3700938_037_037-202001140815 | ND |
| 2020-01-14 | CA3700938_031_031-202001140950 | 5.10 ppb |
| 2020-02-11 | CA3700938_025_025-202002110820 | ND |
| 2020-03-10 | CA3700938_025_025-202003101020 | ND |
| 2020-04-14 | CA3700938_017_017-202004140725 | ND |
| 2020-04-14 | CA3700938_006_006-202004140900 | 5.10 ppb |
| 2020-04-14 | CA3700938_012_012-202004140830 | 4.20 ppb |
| 2020-04-14 | CA3700938_047_047-202004141030 | 4.40 ppb |
| 2020-04-14 | CA3700938_005_005-202004140910 | 6.10 ppb |
| 2020-04-14 | CA3700938_025_025-202004140945 | ND |
| 2020-04-14 | CA3700938_031_031-202004140930 | 4.90 ppb |
| 2020-04-14 | CA3700938_020_020-202004141015 | ND |
| 2020-04-14 | CA3700938_026_026-202004140710 | ND |
| 2020-04-22 | CA3700938_005_005-202004221000 | 6.20 ppb |
| 2020-05-12 | CA3700938_025_025-202005120830 | ND |
| 2020-06-09 | CA3700938_025_025-202006090800 | ND |
| 2020-06-09 | CA3700938_037_037-202006090720 | ND |
| 2020-07-14 | CA3700938_017_017-202007141050 | ND |
| 2020-07-14 | CA3700938_031_031-202007141035 | ND |
| 2020-07-14 | CA3700938_026_026-202007141140 | ND |
| 2020-07-14 | CA3700938_005_005-202007141020 | 5.40 ppb |
| 2020-07-14 | CA3700938_006_006-202007141010 | ND |
| 2020-07-14 | CA3700938_025_025-202007141025 | ND |
| 2020-07-14 | CA3700938_047_047-202007141215 | 5.30 ppb |
| 2020-07-14 | CA3700938_012_012-202007141110 | ND |
| 2020-08-11 | CA3700938_020_020-202008110814 | ND |
| 2020-08-11 | CA3700938_025_025-202008110840 | ND |
| 2020-09-10 | CA3700938_025_025-202009100740 | ND |
| 2020-10-13 | CA3700938_005_005-202010130830 | 4.20 ppb |
| 2020-10-13 | CA3700938_026_026-202010130900 | ND |
| 2020-10-13 | CA3700938_006_006-202010130920 | ND |
| 2020-10-13 | CA3700938_017_017-202010130930 | ND |
| 2020-10-13 | CA3700938_020_020-202010131000 | ND |
| 2020-10-13 | CA3700938_047_047-202010131030 | 5.30 ppb |
| 2020-10-13 | CA3700938_012_012-202010131000 | ND |
| 2020-10-13 | CA3700938_025_025-202010130820 | ND |
| 2020-10-13 | CA3700938_031_031-202010130820 | ND |
| 2020-11-18 | CA3700938_025_025-202011180745 | ND |
| 2020-12-21 | CA3700938_025_025-202012210915 | ND |
| 2021-01-12 | CA3700938_004_004-202101121000 | ND |
| 2021-01-12 | CA3700938_011_011-202101120900 | ND |
| 2021-01-12 | CA3700938_017_017-202101121120 | ND |
| 2021-01-12 | CA3700938_031_031-202101120955 | 4.00 ppb |
| 2021-01-12 | CA3700938_037_037-202101121000 | ND |
| 2021-01-12 | CA3700938_047_047-202101121000 | 5.70 ppb |
| 2021-01-12 | CA3700938_048_048-202101121000 | ND |
| 2021-01-12 | CA3700938_005_005-202101120940 | 6.20 ppb |
| 2021-01-12 | CA3700938_006_006-202101120930 | ND |
| 2021-01-12 | CA3700938_012_012-202101120915 | 4.10 ppb |
| 2021-01-12 | CA3700938_020_020-202101121000 | ND |
| 2021-01-12 | CA3700938_026_026-202101121050 | ND |
| 2021-01-21 | CA3700938_025_025-202101210825 | ND |
| 2021-02-09 | CA3700938_025_025-202102090820 | ND |
| 2021-03-09 | CA3700938_025_025-202103091200 | ND |
| 2021-04-13 | CA3700938_047_047-202104131400 | 5.60 ppb |
| 2021-04-13 | CA3700938_020_020-202104131345 | ND |
| 2021-04-13 | CA3700938_025_025-202104131245 | ND |
| 2021-04-13 | CA3700938_031_031-202104131250 | 4.50 ppb |
| 2021-04-13 | CA3700938_006_006-202104131215 | ND |
| 2021-04-13 | CA3700938_012_012-202104131230 | ND |
| 2021-04-13 | CA3700938_017_017-202104131310 | ND |
| 2021-04-13 | CA3700938_026_026-202104131330 | ND |
| 2021-04-13 | CA3700938_005_005-202104131200 | 6.00 ppb |
| 2021-05-11 | CA3700938_025_025-202105111225 | ND |
| 2021-06-08 | CA3700938_025_025-202106081100 | ND |
| 2021-07-13 | CA3700938_047_047-202107130920 | 5.20 ppb |
| 2021-07-13 | CA3700938_006_006-202107130845 | ND |
| 2021-07-13 | CA3700938_017_017-202107130740 | ND |
| 2021-07-13 | CA3700938_020_020-202107130840 | ND |
| 2021-07-13 | CA3700938_026_026-202107130800 | ND |
| 2021-07-13 | CA3700938_012_012-202107130825 | 3.50 ppb |
| 2021-07-13 | CA3700938_031_031-202107130915 | 3.00 ppb |
| 2021-07-13 | CA3700938_005_005-202107130930 | 4.70 ppb |
| 2021-07-13 | CA3700938_025_025-202107130900 | ND |
| 2021-08-10 | CA3700938_025_025-202108100800 | ND |
| 2021-09-14 | CA3700938_025_025-202109141340 | ND |
| 2021-10-18 | CA3700938_047_047-202110181215 | 5.20 ppb |
| 2021-10-18 | CA3700938_005_005-202110180940 | 5.20 ppb |
| 2021-10-18 | CA3700938_006_006-202110180930 | 4.30 ppb |
| 2021-10-18 | CA3700938_012_012-202110181100 | 4.80 ppb |
| 2021-10-18 | CA3700938_017_017-202110180930 | ND |
| 2021-10-18 | CA3700938_025_025-202110180940 | ND |
| 2021-10-18 | CA3700938_031_031-202110180940 | 3.20 ppb |
| 2021-10-18 | CA3700938_020_020-202110181030 | ND |
| 2021-10-18 | CA3700938_026_026-202110181000 | ND |
| 2021-11-08 | CA3700938_025_025-202111081120 | ND |
| 2021-12-20 | CA3700938_025_025-202112201145 | ND |
| 2022-01-10 | CA3700938_011_011-202201101015 | ND |
| 2022-01-10 | CA3700938_012_012-202201100800 | 4.50 ppb |
| 2022-01-10 | CA3700938_017_017-202201100950 | ND |
| 2022-01-10 | CA3700938_037_037-202201100820 | ND |
| 2022-01-10 | CA3700938_047_047-202201100920 | 5.40 ppb |
| 2022-01-10 | CA3700938_020_020-202201100800 | ND |
| 2022-01-10 | CA3700938_031_031-202201100910 | 4.00 ppb |
| 2022-01-10 | CA3700938_026_026-202201100930 | ND |
| 2022-01-10 | CA3700938_005_005-202201100855 | 5.70 ppb |
| 2022-01-10 | CA3700938_025_025-202201100920 | ND |
| 2022-01-10 | CA3700938_048_048-202201100810 | ND |
| 2022-02-08 | CA3700938_025_025-202202081010 | ND |
| 2022-02-08 | CA3700938_017_017-202202080940 | ND |
| 2022-02-08 | CA3700938_004_004-202202080915 | ND |
| 2022-02-08 | CA3700938_026_026-202202080900 | ND |
| 2022-03-08 | CA3700938_025_025-202203081000 | ND |
| 2022-03-08 | CA3700938_026_026-202203080905 | ND |
| 2022-03-08 | CA3700938_017_017-202203080850 | ND |
| 2022-03-09 | CA3700938_048_048-202203091320 | ND |
| 2022-04-04 | CA3700938_017_017-202204041220 | ND |
| 2022-04-04 | CA3700938_031_031-202204041250 | 4.20 ppb |
| 2022-04-04 | CA3700938_012_012-202204041200 | 5.10 ppb |
| 2022-04-04 | CA3700938_020_020-202204041120 | ND |
| 2022-04-04 | CA3700938_026_026-202204041145 | ND |
| 2022-04-04 | CA3700938_005_005-202204041240 | 6.50 ppb |
| 2022-04-04 | CA3700938_025_025-202204041300 | ND |
| 2022-04-04 | CA3700938_047_047-202204041200 | 5.00 ppb |
| 2022-05-09 | CA3700938_017_017-202205091310 | ND |
| 2022-05-09 | CA3700938_026_026-202205091315 | ND |
| 2022-05-09 | CA3700938_025_025-202205091355 | ND |
| 2022-06-14 | CA3700938_017_017-202206141315 | ND |
| 2022-06-14 | CA3700938_025_025-202206141330 | ND |
| 2022-06-14 | CA3700938_026_026-202206141300 | ND |
| 2022-07-05 | CA3700938_020_020-202207051215 | ND |
| 2022-07-05 | CA3700938_026_026-202207051300 | ND |
| 2022-07-05 | CA3700938_047_047-202207051310 | 5.60 ppb |
| 2022-07-05 | CA3700938_017_017-202207051200 | 2.00 ppb |
| 2022-07-06 | CA3700938_005_005-202207061250 | 6.90 ppb |
| 2022-07-06 | CA3700938_025_025-202207061220 | ND |
| 2022-07-12 | CA3700938_012_012-202207121330 | 4.60 ppb |
| 2022-08-09 | CA3700938_026_026-202208091010 | ND |
| 2022-08-09 | CA3700938_025_025-202208090815 | ND |
| 2022-08-09 | CA3700938_017_017-202208090955 | ND |
| 2022-09-14 | CA3700938_017_017-202209141000 | ND |
| 2022-09-14 | CA3700938_026_026-202209140950 | ND |
| 2022-09-16 | CA3700938_025_025-202209160815 | ND |
| 2022-10-12 | CA3700938_020_020-202210120836 | ND |
| 2022-10-12 | CA3700938_025_025-202210120920 | ND |
| 2022-10-12 | CA3700938_026_026-202210120800 | ND |
| 2022-10-12 | CA3700938_005_005-202210120910 | 5.90 ppb |
| 2022-10-12 | CA3700938_017_017-202210120815 | ND |
| 2022-10-12 | CA3700938_047_047-202210120930 | 5.50 ppb |
| 2022-10-12 | CA3700938_012_012-202210120845 | 3.80 ppb |
| 2022-10-12 | CA3700938_031_031-202210120935 | 3.30 ppb |
| 2022-11-15 | CA3700938_025_025-202211151400 | ND |
| 2022-11-16 | CA3700938_017_017-202211161300 | ND |
| 2022-11-16 | CA3700938_026_026-202211161325 | ND |
| 2022-12-19 | CA3700938_017_017-202212191225 | ND |
| 2022-12-19 | CA3700938_026_026-202212191230 | ND |
| 2022-12-19 | CA3700938_025_025-202212191345 | ND |
| 2022-12-20 | CA3700938_047_047-202212201330 | 4.60 ppb |
| 2023-01-09 | CA3700938_005_005-202301091245 | 5.30 ppb |
| 2023-01-09 | CA3700938_017_017-202301091220 | ND |
| 2023-01-09 | CA3700938_031_031-202301091255 | 3.90 ppb |
| 2023-01-09 | CA3700938_025_025-202301091315 | 4.40 ppb |
| 2023-01-09 | CA3700938_026_026-202301091230 | ND |
| 2023-01-10 | CA3700938_011_011-202301101240 | ND |
| 2023-01-10 | CA3700938_020_020-202301101330 | ND |
| 2023-01-10 | CA3700938_037_037-202301101345 | ND |
| 2023-01-10 | CA3700938_012_012-202301101300 | 4.40 ppb |
| 2023-01-10 | CA3700938_047_047-202301101400 | 4.00 ppb |
| 2023-02-15 | CA3700938_017_017-202302151005 | ND |
| 2023-02-15 | CA3700938_025_025-202302150945 | ND |
| 2023-02-15 | CA3700938_026_026-202302151020 | ND |
| 2023-02-15 | CA3700938_004_004-202302151035 | ND |
| 2023-03-16 | CA3700938_017_017-202303161352 | ND |
| 2023-03-16 | CA3700938_025_025-202303161340 | ND |
| 2023-03-16 | CA3700938_026_026-202303161312 | ND |
| 2023-03-16 | CA3700938_048_048-202303161300 | ND |
| 2023-03-16 | CA3700938_031_031-202303161345 | 4.80 ppb |
| 2023-04-10 | CA3700938_025_025-202304101340 | ND |
| 2023-04-10 | CA3700938_031_031-202304101358 | 5.10 ppb |
| 2023-04-10 | CA3700938_005_005-202304101350 | 7.50 ppb |
| 2023-04-10 | CA3700938_006_006-202304101405 | 5.20 ppb |
| 2023-04-11 | CA3700938_020_020-202304111230 | ND |
| 2023-04-11 | CA3700938_047_047-202304111320 | 4.90 ppb |
| 2023-04-11 | CA3700938_017_017-202304111340 | ND |
| 2023-04-11 | CA3700938_026_026-202304111352 | ND |
| 2023-05-01 | CA3700938_017_017-202305010820 | ND |
| 2023-05-01 | CA3700938_025_025-202305010930 | ND |
| 2023-05-01 | CA3700938_026_026-202305010900 | ND |
| 2023-06-05 | CA3700938_025_025-202306051010 | ND |
| 2023-06-05 | CA3700938_017_017-202306050900 | ND |
| 2023-06-05 | CA3700938_037_037-202306050930 | ND |
| 2023-06-05 | CA3700938_026_026-202306050910 | ND |
| 2023-07-11 | CA3700938_012_012-202307110915 | 4.90 ppb |
| 2023-07-11 | CA3700938_047_047-202307110840 | 16.0 ppb |
| 2023-07-11 | CA3700938_020_020-202307110750 | ND |
| 2023-07-11 | CA3700938_031_031-202307110730 | 3.80 ppb |
| 2023-07-11 | CA3700938_017_017-202307110935 | ND |
| 2023-07-11 | CA3700938_025_025-202307110700 | ND |
| 2023-07-11 | CA3700938_026_026-202307110700 | ND |
| 2023-08-07 | CA3700938_026_026-202308070830 | ND |
| 2023-08-07 | CA3700938_017_017-202308070850 | ND |
| 2023-08-07 | CA3700938_025_025-202308070915 | 2.20 ppb |
| 2023-09-06 | CA3700938_026_026-202309060850 | ND |
| 2023-09-06 | CA3700938_005_005-202309060800 | 5.40 ppb |
| 2023-09-06 | CA3700938_017_017-202309060830 | ND |
| 2023-09-06 | CA3700938_025_025-202309060800 | ND |
| 2023-10-02 | CA3700938_026_026-202310020915 | ND |
| 2023-10-02 | CA3700938_047_047-202310021000 | 4.40 ppb |
| 2023-10-02 | CA3700938_005_005-202310020845 | 4.80 ppb |
| 2023-10-02 | CA3700938_006_006-202310020815 | 3.90 ppb |
| 2023-10-02 | CA3700938_025_025-202310020800 | ND |
| 2023-10-02 | CA3700938_017_017-202310020950 | ND |
| 2023-10-02 | CA3700938_020_020-202310020820 | ND |
| 2023-10-02 | CA3700938_031_031-202310020830 | 2.70 ppb |
| 2023-11-06 | CA3700938_017_017-202311060930 | ND |
| 2023-11-06 | CA3700938_025_025-202311060920 | ND |
| 2023-11-06 | CA3700938_026_026-202311060940 | ND |
| 2023-12-04 | CA3700938_026_026-202312040755 | ND |
| 2023-12-04 | CA3700938_017_017-202312040835 | ND |
| 2023-12-04 | CA3700938_025_025-202312040855 | ND |