1,2,3-Trichloropropane
City Of Modesto - Del Rio
1,2,3-Trichloropropane is a potent carcinogen that contaminates drinking water in agricultural regions where it was historically used as soil fumigant. Click here to read more about carcinogenic VOCs.
105
Samples
0
Samples exceeding legal limit (MCL)
49
Samples exceeding
health guidelines
Testing results - average by year
| Year | Average result | Samples taken | Detections | Range of results |
|---|---|---|---|---|
| 2018 | ND | 13 | 0 | ND |
| 2019 | N/A | 0 | 0 | N/A |
| 2020 | 0.00549 ppb | 7 | 4 | ND - 0.0110 ppb |
| 2021 | 0.00321 ppb | 28 | 12 | ND - 0.01000 ppb |
| 2022 | 0.00318 ppb | 29 | 14 | ND - 0.0110 ppb |
| 2023 | 0.00430 ppb | 28 | 19 | ND - 0.0150 ppb |
ppb = parts per billion
State, National, and Health Guidelines for Drinking Water
EWG Health Guideline: 0.0007 ppb
The EWG Health Guideline of 0.0007 ppb for 1,2,3-trichloropropane 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 cancer.
ppb = parts per billion
All test results
| Date | Lab ID | Result |
|---|---|---|
| 2018-02-22 | CA5010029_001_001-201802220820 | ND |
| 2018-02-22 | CA5010029_002_002-201802220800 | ND |
| 2018-02-22 | CA5010029_004_004-201802220835 | ND |
| 2018-05-14 | CA5010029_010_010-201805140830 | ND |
| 2018-05-17 | CA5010029_001_001-201805170805 | ND |
| 2018-05-17 | CA5010029_004_004-201805170825 | ND |
| 2018-05-17 | CA5010029_002_002-201805170740 | ND |
| 2018-08-22 | CA5010029_001_001-201808220745 | ND |
| 2018-08-22 | CA5010029_004_004-201808220800 | ND |
| 2018-09-12 | CA5010029_002_002-201809120830 | ND |
| 2018-11-07 | CA5010029_001_001-201811070825 | ND |
| 2018-11-07 | CA5010029_002_002-201811070750 | ND |
| 2018-11-07 | CA5010029_004_004-201811070845 | ND |
| 2020-05-13 | CA5010029_010_010-202005131047 | 0.0110 ppb |
| 2020-10-12 | CA5010029_010_010-202010121404 | 0.00760 ppb |
| 2020-10-12 | CA5010029_011_011-202010121330 | ND |
| 2020-11-04 | CA5010029_010_010-202011040945 | 0.00880 ppb |
| 2020-11-04 | CA5010029_011_011-202011040912 | ND |
| 2020-12-02 | CA5010029_011_011-202012021020 | ND |
| 2020-12-02 | CA5010029_010_010-202012020955 | 0.0110 ppb |
| 2021-01-06 | CA5010029_011_011-202101060910 | ND |
| 2021-01-06 | CA5010029_010_010-202101060810 | 0.00680 ppb |
| 2021-02-03 | CA5010029_010_010-202102030820 | 0.00980 ppb |
| 2021-02-03 | CA5010029_002_002-202102030952 | ND |
| 2021-02-03 | CA5010029_004_004-202102031028 | ND |
| 2021-02-03 | CA5010029_011_011-202102030907 | ND |
| 2021-02-03 | CA5010029_001_001-202102031014 | ND |
| 2021-03-03 | CA5010029_010_010-202103030840 | 0.00900 ppb |
| 2021-03-03 | CA5010029_011_011-202103030925 | ND |
| 2021-04-28 | CA5010029_010_010-202104280840 | 0.001000 ppb |
| 2021-04-28 | CA5010029_011_011-202104280820 | ND |
| 2021-05-04 | CA5010029_011_011-202105040830 | ND |
| 2021-05-04 | CA5010029_010_010-202105040900 | 0.00740 ppb |
| 2021-05-05 | CA5010029_001_001-202105051035 | ND |
| 2021-05-05 | CA5010029_002_002-202105050945 | ND |
| 2021-05-05 | CA5010029_004_004-202105051050 | 0.000990 ppb |
| 2021-06-01 | CA5010029_011_011-202106010910 | ND |
| 2021-06-01 | CA5010029_010_010-202106010755 | 0.00840 ppb |
| 2021-07-06 | CA5010029_010_010-202107061040 | 0.00970 ppb |
| 2021-07-06 | CA5010029_011_011-202107061245 | ND |
| 2021-09-01 | CA5010029_011_011-202109010855 | ND |
| 2021-09-01 | CA5010029_010_010-202109010815 | 0.01000 ppb |
| 2021-10-06 | CA5010029_010_010-202110060830 | 0.01000 ppb |
| 2021-10-06 | CA5010029_011_011-202110060900 | ND |
| 2021-11-03 | CA5010029_010_010-202111030930 | 0.01000 ppb |
| 2021-11-03 | CA5010029_011_011-202111030905 | ND |
| 2021-12-01 | CA5010029_010_010-202112010920 | 0.00670 ppb |
| 2021-12-01 | CA5010029_011_011-202112010900 | ND |
| 2022-01-05 | CA5010029_010_010-202201050806 | 0.00790 ppb |
| 2022-01-05 | CA5010029_011_011-202201050833 | ND |
| 2022-02-02 | CA5010029_010_010-202202020915 | 0.00630 ppb |
| 2022-02-02 | CA5010029_011_011-202202020950 | ND |
| 2022-03-02 | CA5010029_010_010-202203020855 | 0.0110 ppb |
| 2022-03-02 | CA5010029_011_011-202203020840 | ND |
| 2022-04-06 | CA5010029_010_010-202204061000 | ND |
| 2022-04-06 | CA5010029_011_011-202204061030 | ND |
| 2022-05-04 | CA5010029_010_010-202205040800 | 0.00670 ppb |
| 2022-05-04 | CA5010029_011_011-202205040850 | ND |
| 2022-06-01 | CA5010029_010_010-202206010830 | 0.00840 ppb |
| 2022-06-01 | CA5010029_011_011-202206010915 | ND |
| 2022-06-29 | CA5010029_004_004-202206290853 | 0.00130 ppb |
| 2022-06-29 | CA5010029_002_002-202206290838 | 0.00790 ppb |
| 2022-07-05 | CA5010029_010_010-202207051230 | 0.00780 ppb |
| 2022-07-05 | CA5010029_011_011-202207051310 | ND |
| 2022-07-27 | CA5010029_002_002-202207270800 | 0.00720 ppb |
| 2022-08-03 | CA5010029_011_011-202208031105 | ND |
| 2022-08-03 | CA5010029_010_010-202208031025 | ND |
| 2022-08-12 | CA5010029_002_002-202208120850 | 0.00270 ppb |
| 2022-09-06 | CA5010029_010_010-202209060950 | 0.00940 ppb |
| 2022-09-06 | CA5010029_011_011-202209061030 | ND |
| 2022-09-16 | CA5010029_002_002-202209160745 | ND |
| 2022-10-05 | CA5010029_010_010-202210050900 | 0.00770 ppb |
| 2022-10-05 | CA5010029_011_011-202210050930 | ND |
| 2022-10-28 | CA5010029_002_002-202210280835 | ND |
| 2022-11-02 | CA5010029_010_010-202211021240 | 0.00710 ppb |
| 2022-11-02 | CA5010029_011_011-202211021310 | 0.000730 ppb |
| 2022-11-18 | CA5010029_002_002-202211180935 | ND |
| 2023-01-03 | CA5010029_011_011-202301031310 | ND |
| 2023-01-03 | CA5010029_010_010-202301031235 | 0.00900 ppb |
| 2023-02-01 | CA5010029_010_010-202302010955 | 0.00660 ppb |
| 2023-02-01 | CA5010029_011_011-202302011030 | ND |
| 2023-02-08 | CA5010029_002_002-202302080825 | ND |
| 2023-03-01 | CA5010029_011_011-202303011240 | ND |
| 2023-03-01 | CA5010029_010_010-202303011200 | 0.00920 ppb |
| 2023-04-05 | CA5010029_010_010-202304050935 | 0.0150 ppb |
| 2023-04-05 | CA5010029_011_011-202304051010 | ND |
| 2023-05-03 | CA5010029_004_004-202305030840 | 0.00120 ppb |
| 2023-05-03 | CA5010029_010_010-202305030910 | 0.00770 ppb |
| 2023-05-03 | CA5010029_002_002-202305030750 | ND |
| 2023-06-07 | CA5010029_011_011-202306070950 | ND |
| 2023-06-07 | CA5010029_010_010-202306070910 | 0.00890 ppb |
| 2023-07-05 | CA5010029_010_010-202307050925 | 0.00760 ppb |
| 2023-07-05 | CA5010029_011_011-202307051005 | ND |
| 2023-08-02 | CA5010029_010_010-202308020925 | 0.00920 ppb |
| 2023-08-02 | CA5010029_002_002-202308020815 | 0.00440 ppb |
| 2023-08-02 | CA5010029_011_011-202308021040 | ND |
| 2023-09-05 | CA5010029_010_010-202309050925 | 0.00800 ppb |
| 2023-09-05 | CA5010029_011_011-202309051000 | 0.000750 ppb |
| 2023-10-04 | CA5010029_010_010-202310040910 | 0.00870 ppb |
| 2023-10-04 | CA5010029_011_011-202310040945 | 0.000890 ppb |
| 2023-11-01 | CA5010029_010_010-202311010930 | 0.0110 ppb |
| 2023-11-01 | CA5010029_011_011-202311011010 | 0.00110 ppb |
| 2023-11-01 | CA5010029_002_002-202311010840 | 0.00110 ppb |
| 2023-12-06 | CA5010029_010_010-202312060900 | 0.00920 ppb |
| 2023-12-06 | CA5010029_011_011-202312060945 | 0.000750 ppb |