Tritium
Wilmington
Tritium is a radioactive element emitted from nuclear reactors and weapons production plants. Radiation from tritium and other radioactive substances increases the risk of cancer. Click here to read more on radiological contaminants.
247
Samples
0
Samples exceeding legal limit (MCL)
108
Samples exceeding
health guidelines
Testing results - average by year
| Year | Average result | Samples taken | Detections | Range of results |
|---|---|---|---|---|
| 2018 | 805.96 pCi/L | 51 | 35 | ND - 3,820.00 pCi/L |
| 2019 | 652.50 pCi/L | 52 | 29 | ND - 3,079.00 pCi/L |
| 2020 | 432.89 pCi/L | 53 | 19 | ND - 2,763.00 pCi/L |
| 2021 | 949.66 pCi/L | 46 | 36 | ND - 3,700.00 pCi/L |
| 2022 | 370.23 pCi/L | 14 | 12 | ND - 1,104.00 pCi/L |
| 2023 | 375.45 pCi/L | 31 | 10 | ND - 2,542.00 pCi/L |
pCi/L = picocuries per liter
State, National, and Health Guidelines for Drinking Water
EWG Health Guideline: 400 pCi/L
The EWG Health Guideline of 400 pCi/L for tritium 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.
pCi/L = picocuries per liter
All test results
| Date | Lab ID | Result |
|---|---|---|
| 2018-01-04 | 8011965-04 | ND |
| 2018-01-10 | 8011965-05 | ND |
| 2018-01-18 | 8021387-01 | ND |
| 2018-01-25 | 8021387-02 | 1,695.00 pCi/L |
| 2018-02-01 | 8021387-03 | 1,948.00 pCi/L |
| 2018-02-07 | 8021387-04 | 2,300.00 pCi/L |
| 2018-02-15 | 8032794-01 | 435.00 pCi/L |
| 2018-02-22 | 8032794-02 | 1,860.00 pCi/L |
| 2018-03-01 | 8032794-03 | ND |
| 2018-03-14 | 8032794-05 | 444.00 pCi/L |
| 2018-03-22 | 8041244-01 | 46.40 pCi/L |
| 2018-03-28 | 8041244-02 | ND |
| 2018-04-04 | 8041244-03 | 14.60 pCi/L |
| 2018-04-12 | 8052183-01 | ND |
| 2018-04-18 | 8052183-02 | ND |
| 2018-04-26 | 8052183-03 | 188.00 pCi/L |
| 2018-05-02 | 8052183-04 | 739.00 pCi/L |
| 2018-05-09 | 8052183-05 | 1,103.00 pCi/L |
| 2018-05-17 | 8062789-01 | 1,314.00 pCi/L |
| 2018-05-24 | 8062789-05 | 345.00 pCi/L |
| 2018-05-30 | 8062789-02 | ND |
| 2018-06-06 | 8062789-03 | 1,316.00 pCi/L |
| 2018-06-13 | 8062789-04 | ND |
| 2018-06-21 | 8072445-01 | 568.00 pCi/L |
| 2018-06-28 | 8072445-02 | 324.00 pCi/L |
| 2018-07-03 | 8072445-03 | 340.00 pCi/L |
| 2018-07-11 | 8072445-04 | 467.00 pCi/L |
| 2018-07-18 | 8082037-01 | 1,447.00 pCi/L |
| 2018-07-26 | 8082037-02 | 1,181.00 pCi/L |
| 2018-08-02 | 8082037-03 | ND |
| 2018-08-08 | 8082037-04 | ND |
| 2018-08-16 | 8090930-01 | 1,935.00 pCi/L |
| 2018-08-23 | 8090930-02 | 588.00 pCi/L |
| 2018-08-30 | 8090930-03 | 1,153.00 pCi/L |
| 2018-09-05 | 8090930-04 | 2,051.00 pCi/L |
| 2018-09-13 | 8101337-01 | 2,135.00 pCi/L |
| 2018-09-17 | 8101337-02 | 2,073.00 pCi/L |
| 2018-09-27 | 8101337-03 | 1,221.00 pCi/L |
| 2018-10-03 | 8101337-04 | 1,652.00 pCi/L |
| 2018-10-10 | 8111760-01 | 1,288.00 pCi/L |
| 2018-10-18 | 8111760-02 | 3,820.00 pCi/L |
| 2018-10-25 | 8111760-03 | 505.00 pCi/L |
| 2018-11-01 | 8111760-04 | 2,205.00 pCi/L |
| 2018-11-07 | 8111760-05 | ND |
| 2018-11-16 | 8121319-01 | 394.00 pCi/L |
| 2018-11-23 | 8121319-02 | ND |
| 2018-11-29 | 8121319-03 | ND |
| 2018-12-05 | 8121319-04 | ND |
| 2018-12-13 | 9010486-01 | 1,427.00 pCi/L |
| 2018-12-20 | 9010486-02 | ND |
| 2018-12-27 | 9010486-03 | 582.00 pCi/L |
| 2019-01-03 | 9010486-04 | ND |
| 2019-01-10 | 9022680-01 | ND |
| 2019-01-17 | 9022680-02 | 781.00 pCi/L |
| 2019-01-23 | 9022680-03 | 1,517.00 pCi/L |
| 2019-02-01 | 9022680-05 | ND |
| 2019-02-07 | 9022680-04 | ND |
| 2019-02-13 | 9022680-06 | ND |
| 2019-02-21 | 9031305-01 | ND |
| 2019-02-27 | 9031305-02 | ND |
| 2019-03-06 | 9031305-03 | 929.00 pCi/L |
| 2019-03-14 | 9041446-01 | 291.00 pCi/L |
| 2019-03-21 | 9041446-02 | ND |
| 2019-03-28 | 9041446-03 | ND |
| 2019-04-03 | 9041446-04 | ND |
| 2019-04-11 | 9052295-01 | ND |
| 2019-04-18 | 9052295-02 | ND |
| 2019-04-24 | 9052295-03 | ND |
| 2019-05-01 | 9052295-04 | ND |
| 2019-05-08 | 9052295-05 | ND |
| 2019-05-16 | 9061395-01 | ND |
| 2019-05-22 | 9061395-02 | ND |
| 2019-05-30 | 9061395-03 | 1,745.00 pCi/L |
| 2019-06-05 | 9061395-04 | 373.00 pCi/L |
| 2019-06-13 | 9072574-01 | 236.00 pCi/L |
| 2019-06-19 | 9072574-02 | 254.00 pCi/L |
| 2019-06-27 | 9072574-03 | 856.00 pCi/L |
| 2019-07-03 | 9072574-04 | ND |
| 2019-07-10 | 9072574-05 | 255.00 pCi/L |
| 2019-07-17 | 9081952-01 | 1,684.00 pCi/L |
| 2019-07-24 | 9081952-02 | ND |
| 2019-07-31 | 9081952-03 | ND |
| 2019-08-07 | 9081952-04 | 2,762.00 pCi/L |
| 2019-08-15 | 9101006-01 | 2,746.00 pCi/L |
| 2019-08-21 | 9101006-02 | 3,079.00 pCi/L |
| 2019-08-28 | 9101006-03 | 2,338.00 pCi/L |
| 2019-09-04 | 9101006-04 | 1,293.00 pCi/L |
| 2019-09-11 | 9101006-05 | 1,871.00 pCi/L |
| 2019-09-18 | 9101006-06 | 977.00 pCi/L |
| 2019-09-25 | 9101006-07 | 1,067.00 pCi/L |
| 2019-10-04 | 9111420-01 | 1,535.00 pCi/L |
| 2019-10-09 | 9111420-02 | ND |
| 2019-10-17 | 9111420-03 | 1,259.00 pCi/L |
| 2019-10-24 | 9111420-04 | 912.00 pCi/L |
| 2019-10-31 | 9111420-05 | 530.00 pCi/L |
| 2019-11-06 | 9121265-01 | 1,281.00 pCi/L |
| 2019-11-13 | 9121265-02 | 607.00 pCi/L |
| 2019-11-20 | 9121265-03 | ND |
| 2019-11-27 | 9121265-04 | 411.00 pCi/L |
| 2019-12-01 | 0010159-01 | 992.00 pCi/L |
| 2019-12-04 | 9121265-05 | 554.00 pCi/L |
| 2019-12-12 | 0010159-02 | 795.00 pCi/L |
| 2019-12-26 | 0010159-03 | ND |
| 2020-01-02 | 0010159-04 | ND |
| 2020-01-08 | 0021325-01 | ND |
| 2020-01-15 | 0021325-02 | ND |
| 2020-01-22 | 0021325-03 | ND |
| 2020-01-30 | 0021325-04 | ND |
| 2020-02-05 | 0021325-05 | ND |
| 2020-02-13 | 0031258-01 | 992.00 pCi/L |
| 2020-02-20 | 0031258-02 | ND |
| 2020-02-26 | 0031258-03 | ND |
| 2020-03-04 | 0031258-04 | ND |
| 2020-03-11 | 0040586-01 | ND |
| 2020-03-18 | 0040586-02 | ND |
| 2020-03-26 | 0040586-03 | 227.00 pCi/L |
| 2020-04-01 | 0040586-04 | 473.00 pCi/L |
| 2020-04-08 | 0051727-01 | 1,565.00 pCi/L |
| 2020-04-16 | 0051727-02 | 1,560.00 pCi/L |
| 2020-04-22 | 0051727-03 | ND |
| 2020-04-30 | 0051727-04 | 291.00 pCi/L |
| 2020-05-07 | 0051727-05 | 928.00 pCi/L |
| 2020-05-14 | 0062639-01 | 1,088.00 pCi/L |
| 2020-05-21 | 0062639-02 | ND |
| 2020-05-27 | 0062639-03 | ND |
| 2020-06-04 | 0062639-04 | ND |
| 2020-06-10 | 0062639-05 | ND |
| 2020-06-17 | 0072003-01 | 1,548.00 pCi/L |
| 2020-06-24 | 0072003-02 | 1,138.00 pCi/L |
| 2020-07-02 | 0072003-03 | ND |
| 2020-07-08 | 0072003-04 | ND |
| 2020-07-16 | 0081634-01 | 411.00 pCi/L |
| 2020-07-22 | 0081634-02 | ND |
| 2020-07-27 | 0081634-03 | ND |
| 2020-08-05 | 0081634-04 | ND |
| 2020-08-12 | 0092314-01 | ND |
| 2020-08-20 | 0092314-02 | ND |
| 2020-08-26 | 0092314-03 | ND |
| 2020-09-02 | 0092314-04 | ND |
| 2020-09-07 | 0092314-05 | 1,205.00 pCi/L |
| 2020-09-16 | 0101967-01 | 580.00 pCi/L |
| 2020-09-23 | 0101967-02 | ND |
| 2020-09-30 | 0101967-03 | ND |
| 2020-10-07 | 0101967-04 | ND |
| 2020-10-15 | 0111258-01 | 1,581.00 pCi/L |
| 2020-10-21 | 0111258-02 | ND |
| 2020-10-28 | 0111258-03 | ND |
| 2020-11-04 | 0111258-04 | ND |
| 2020-11-11 | 0120980-01 | ND |
| 2020-11-18 | 0120980-02 | ND |
| 2020-11-25 | 0120980-03 | ND |
| 2020-12-02 | 0120980-04 | 2,763.00 pCi/L |
| 2020-12-09 | EA01202-01 | 2,471.00 pCi/L |
| 2020-12-16 | EA01202-02 | 924.00 pCi/L |
| 2020-12-24 | EA01202-03 | 890.00 pCi/L |
| 2020-12-31 | EA01202-04 | 2,308.00 pCi/L |
| 2021-01-06 | EA01202-05 | ND |
| 2021-01-13 | EB01287-01 | 1,491.00 pCi/L |
| 2021-01-20 | EB01287-02 | 3,700.00 pCi/L |
| 2021-01-27 | EB01287-03 | 3,392.00 pCi/L |
| 2021-02-03 | EB01287-04 | 3,547.00 pCi/L |
| 2021-02-10 | EC01253-01 | 2,716.00 pCi/L |
| 2021-02-17 | EC01253-02 | 1,949.00 pCi/L |
| 2021-02-26 | EC01253-03 | 2,070.00 pCi/L |
| 2021-03-03 | EC01253-04 | 1,345.00 pCi/L |
| 2021-03-11 | ED01762-01 | 1,014.00 pCi/L |
| 2021-03-17 | ED01762-02 | 2,935.00 pCi/L |
| 2021-03-24 | ED01762-03 | 2,160.00 pCi/L |
| 2021-03-31 | ED01762-04 | ND |
| 2021-04-07 | ED01762-05 | 1,246.00 pCi/L |
| 2021-04-14 | EE02755-01 | 1,428.00 pCi/L |
| 2021-04-21 | EE02755-02 | 1,061.00 pCi/L |
| 2021-04-28 | EE02755-03 | 1,561.00 pCi/L |
| 2021-05-05 | EE02755-04 | ND |
| 2021-05-12 | EE02755-05 | ND |
| 2021-05-20 | EE05284-01 | ND |
| 2021-05-26 | EE05284-02 | ND |
| 2021-06-02 | 2106Q94-001A | ND |
| 2021-06-09 | 2106Q94-002A | ND |
| 2021-06-16 | 2106Q94-003A | 892.00 pCi/L |
| 2021-06-23 | 2106Q94-004A | ND |
| 2021-07-01 | 2108E29-001A | 88.10 pCi/L |
| 2021-07-07 | 2108E29-002A | 908.00 pCi/L |
| 2021-07-14 | 2108E29-003A | 609.00 pCi/L |
| 2021-07-21 | 2108E29-004A | 375.00 pCi/L |
| 2021-07-28 | 2108E29-005A | 1,785.00 pCi/L |
| 2021-08-04 | 2108E29-006A | 32.40 pCi/L |
| 2021-08-18 | 2110E86-001A | 728.00 pCi/L |
| 2021-08-25 | 2110E86-002A | 168.00 pCi/L |
| 2021-09-08 | 2110E86-003A | 2,195.00 pCi/L |
| 2021-09-16 | 2110E86-004A | 1,190.00 pCi/L |
| 2021-09-23 | 2110E86-005A | 40.00 pCi/L |
| 2021-09-30 | 2110E86-006A | 670.00 pCi/L |
| 2021-10-07 | 2110E86-007A | 405.00 pCi/L |
| 2021-10-13 | 2110E86-008A | 290.00 pCi/L |
| 2021-11-18 | 2112L01-001 | 314.00 pCi/L |
| 2021-11-24 | 2112L01-002 | ND |
| 2021-12-01 | 2112L01-003 | 140.00 pCi/L |
| 2021-12-07 | 2112L01-004 | 136.00 pCi/L |
| 2021-12-18 | 2112L01-005 | 128.00 pCi/L |
| 2021-12-23 | 2202459-001A | 254.00 pCi/L |
| 2021-12-29 | 2202459-002A | 722.00 pCi/L |
| 2022-01-05 | 2202459-003A | 619.00 pCi/L |
| 2022-01-12 | 2202459-004A | 777.00 pCi/L |
| 2022-01-20 | 2202459-005A | 914.00 pCi/L |
| 2022-01-27 | 2202459-006A | 25.40 pCi/L |
| 2022-02-02 | 2202459-007A | 81.40 pCi/L |
| 2022-02-09 | 2203D65-001A | 96.30 pCi/L |
| 2022-02-16 | 2203D65-002A | ND |
| 2022-02-24 | 2203D65-003A | ND |
| 2022-03-02 | 2203D65-004A | 265.00 pCi/L |
| 2022-03-10 | 2203D65-005A | 297.00 pCi/L |
| 2022-03-16 | 2204690-001A | 304.00 pCi/L |
| 2022-03-24 | 2204690-002A | 5.08 pCi/L |
| 2022-03-31 | 2204690-003A | 1,104.00 pCi/L |
| 2022-04-07 | 2204690-004A | 695.00 pCi/L |
| 2023-05-31 | GG03686-01 | 1,567.00 pCi/L |
| 2023-06-07 | GG03686-02 | 1,367.00 pCi/L |
| 2023-06-14 | GG03686-03 | ND |
| 2023-06-21 | GG03686-04 | 1,190.00 pCi/L |
| 2023-06-28 | GG03686-05 | ND |
| 2023-07-05 | GG03686-06 | ND |
| 2023-07-12 | GG03686-07 | ND |
| 2023-07-19 | GG03686-08 | ND |
| 2023-07-26 | GH06203-01 | ND |
| 2023-08-02 | GH06203-02 | ND |
| 2023-08-10 | GH06203-03 | ND |
| 2023-08-16 | GH06203-04 | ND |
| 2023-08-23 | GH06203-05 | ND |
| 2023-08-30 | GH06203-06 | 364.00 pCi/L |
| 2023-09-06 | GJ02396-01 | 1,759.00 pCi/L |
| 2023-09-13 | GJ02396-02 | ND |
| 2023-09-20 | GJ02396-03 | ND |
| 2023-09-29 | GJ02396-04 | 615.00 pCi/L |
| 2023-10-04 | GJ02396-05 | ND |
| 2023-10-11 | GJ02396-06 | ND |
| 2023-10-18 | GK03218-01 | 1,084.00 pCi/L |
| 2023-10-25 | GK03218-02 | ND |
| 2023-11-01 | GK03218-03 | ND |
| 2023-11-09 | GK03218-04 | ND |
| 2023-11-15 | GK03218-05 | ND |
| 2023-11-22 | GL04646-01 | 2,542.00 pCi/L |
| 2023-11-29 | GL04646-02 | ND |
| 2023-12-07 | GL04646-03 | ND |
| 2023-12-13 | GL04646-04 | ND |
| 2023-12-20 | GL04646-05 | 699.00 pCi/L |
| 2023-12-27 | GL04646-06 | 452.00 pCi/L |