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.
292
Samples
0
Samples exceeding legal limit (MCL)
126
Samples exceeding
health guidelines
Testing results - average by year
| Year | Average result | Samples taken | Detections | Range of results |
|---|---|---|---|---|
| 2014 | 528.21 pCi/L | 49 | 32 | ND - 2,800.00 pCi/L |
| 2015 | 405.48 pCi/L | 50 | 49 | ND - 1,535.00 pCi/L |
| 2016 | 746.21 pCi/L | 47 | 46 | ND - 4,884.00 pCi/L |
| 2017 | 455.51 pCi/L | 43 | 16 | ND - 2,448.00 pCi/L |
| 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 |
pCi/L = picocuries per liter
State and national drinking water standards and health guidelines
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 |
|---|---|---|
| 2014-01-06 | 4021768-01 | 2,195.00 pCi/L |
| 2014-01-13 | 4021768-02 | 2,800.00 pCi/L |
| 2014-01-20 | 4021768-03 | 632.00 pCi/L |
| 2014-01-27 | 4021768-04 | 2,598.00 pCi/L |
| 2014-02-03 | 4031712-01 | 1,612.00 pCi/L |
| 2014-02-10 | 4031712-02 | 551.00 pCi/L |
| 2014-02-17 | 4031712-03 | 711.00 pCi/L |
| 2014-02-24 | 4031712-04 | ND |
| 2014-03-03 | 4052404-01 | 619.00 pCi/L |
| 2014-03-10 | 4052404-02 | 396.00 pCi/L |
| 2014-03-17 | 4052404-03 | ND |
| 2014-03-24 | 4052404-04 | 1,012.00 pCi/L |
| 2014-03-31 | 4052404-05 | ND |
| 2014-04-07 | 4052406-01 | 760.00 pCi/L |
| 2014-04-14 | 4052406-02 | 380.00 pCi/L |
| 2014-04-21 | 4052406-03 | ND |
| 2014-05-02 | 4052406-04 | 490.00 pCi/L |
| 2014-05-05 | 30123942001 | 289.00 pCi/L |
| 2014-05-16 | 30123942002 | 565.00 pCi/L |
| 2014-05-23 | 30123942003 | ND |
| 2014-05-30 | 30123942004 | ND |
| 2014-06-06 | 30123942005 | 62.10 pCi/L |
| 2014-06-13 | 30123942006 | 494.00 pCi/L |
| 2014-06-18 | 30123942007 | 822.00 pCi/L |
| 2014-06-27 | 4083098-01 | 376.00 pCi/L |
| 2014-07-04 | 4083098-02 | 134.00 pCi/L |
| 2014-07-11 | 4083098-03 | 557.00 pCi/L |
| 2014-07-18 | 4083098-04 | 639.00 pCi/L |
| 2014-07-25 | 4083098-05 | 714.00 pCi/L |
| 2014-08-01 | 4083098-06 | 862.00 pCi/L |
| 2014-08-08 | 4083098-07 | 809.00 pCi/L |
| 2014-08-15 | 4091829-01 | ND |
| 2014-08-22 | 4091829-02 | ND |
| 2014-08-29 | 4091829-03 | 739.00 pCi/L |
| 2014-09-04 | 4091829-04 | ND |
| 2014-09-12 | 4102818-01 | 397.00 pCi/L |
| 2014-09-19 | 4102818-02 | ND |
| 2014-09-26 | 4102818-03 | 865.00 pCi/L |
| 2014-10-03 | 4102818-04 | 286.00 pCi/L |
| 2014-10-17 | 4111927-02 | 347.00 pCi/L |
| 2014-10-24 | 4111927-03 | ND |
| 2014-11-07 | 4111927-05 | 1,074.00 pCi/L |
| 2014-11-14 | 4122034-01 | ND |
| 2014-11-21 | 4122034-02 | 1,095.00 pCi/L |
| 2014-11-28 | 4122034-03 | ND |
| 2014-12-05 | 4122034-04 | ND |
| 2014-12-10 | 4122034-05 | ND |
| 2014-12-19 | 5012122-01 | ND |
| 2014-12-26 | 5012122-02 | ND |
| 2015-01-02 | 5012122-03 | ND |
| 2015-01-09 | 5012122-04 | 1,128.00 pCi/L |
| 2015-01-16 | 5020851-01 | 316.00 pCi/L |
| 2015-01-23 | 5020851-02 | 808.00 pCi/L |
| 2015-01-30 | 5020851-03 | 1,024.00 pCi/L |
| 2015-02-04 | 5020851-04 | 1,157.00 pCi/L |
| 2015-02-13 | 5032738-01 | 741.00 pCi/L |
| 2015-02-20 | 5032738-02 | 1,535.00 pCi/L |
| 2015-02-27 | 5032738-03 | 305.00 pCi/L |
| 2015-03-06 | 5032738-04 | 1,347.00 pCi/L |
| 2015-03-13 | 5032738-05 | 82.90 pCi/L |
| 2015-03-19 | 5032738-06 | 675.00 pCi/L |
| 2015-04-10 | 5052308-03 | 274.00 pCi/L |
| 2015-04-17 | 5052308-04 | 262.00 pCi/L |
| 2015-04-24 | 5052308-05 | 53.40 pCi/L |
| 2015-05-01 | 5052308-06 | 245.00 pCi/L |
| 2015-05-09 | 5052308-07 | 21.00 pCi/L |
| 2015-05-15 | 5062101-01 | 123.00 pCi/L |
| 2015-05-22 | 5062101-02 | 37.10 pCi/L |
| 2015-05-29 | 5062101-03 | 159.00 pCi/L |
| 2015-06-05 | 5062101-04 | 365.00 pCi/L |
| 2015-06-11 | 5062101-05 | 150.00 pCi/L |
| 2015-06-19 | 5071717-01 | 256.00 pCi/L |
| 2015-06-25 | 5071717-02 | 5.57 pCi/L |
| 2015-07-03 | 5071717-03 | 20.00 pCi/L |
| 2015-07-09 | 5071717-04 | 11.40 pCi/L |
| 2015-07-17 | 5082660-01 | 273.00 pCi/L |
| 2015-07-24 | 5082660-02 | 366.00 pCi/L |
| 2015-07-31 | 5082660-03 | 646.00 pCi/L |
| 2015-08-07 | 5082660-04 | 904.00 pCi/L |
| 2015-08-13 | 5082660-05 | 1,160.00 pCi/L |
| 2015-08-21 | 5091792-01 | 165.00 pCi/L |
| 2015-08-28 | 5091792-02 | 775.00 pCi/L |
| 2015-09-04 | 5091792-03 | 280.00 pCi/L |
| 2015-09-10 | 5091792-04 | 277.00 pCi/L |
| 2015-09-18 | 5101456-01 | 1,194.00 pCi/L |
| 2015-09-25 | 5101456-02 | 65.40 pCi/L |
| 2015-10-02 | 5101456-03 | 133.00 pCi/L |
| 2015-10-07 | 5101456-04 | 190.00 pCi/L |
| 2015-10-13 | 5112049-01 | 385.00 pCi/L |
| 2015-10-21 | 5112049-02 | 592.00 pCi/L |
| 2015-10-28 | 5112049-03 | 203.00 pCi/L |
| 2015-11-04 | 5112049-04 | 153.00 pCi/L |
| 2015-11-12 | 5112049-05 | 95.40 pCi/L |
| 2015-11-20 | 5120741-01 | 5.76 pCi/L |
| 2015-11-27 | 5120741-02 | 266.00 pCi/L |
| 2015-12-02 | 5120741-03 | 37.30 pCi/L |
| 2015-12-11 | 6011043-01 | 628.00 pCi/L |
| 2015-12-18 | 6011043-02 | 129.00 pCi/L |
| 2015-12-25 | 6011043-03 | 250.00 pCi/L |
| 2016-01-01 | 6011043-04 | 709.00 pCi/L |
| 2016-01-06 | 6011043-05 | 221.00 pCi/L |
| 2016-01-15 | 6022002-01 | 244.00 pCi/L |
| 2016-01-20 | 6022002-02 | 105.00 pCi/L |
| 2016-01-27 | 6022002-03 | 313.00 pCi/L |
| 2016-02-05 | 6022002-04 | 276.00 pCi/L |
| 2016-02-10 | 6022002-05 | 62.90 pCi/L |
| 2016-02-17 | 6031859-01 | 269.00 pCi/L |
| 2016-02-26 | 6031859-02 | 67.30 pCi/L |
| 2016-03-04 | 6031859-03 | 266.00 pCi/L |
| 2016-03-08 | 6031859-04 | 926.00 pCi/L |
| 2016-03-18 | 6042517-01 | 288.00 pCi/L |
| 2016-03-25 | 6042517-02 | 513.00 pCi/L |
| 2016-04-07 | 6042517-04 | 1,083.00 pCi/L |
| 2016-04-14 | 6042517-05 | 84.60 pCi/L |
| 2016-04-20 | 6052028-01 | 690.00 pCi/L |
| 2016-04-28 | 6052028-02 | 905.00 pCi/L |
| 2016-05-05 | 6052028-03 | 305.00 pCi/L |
| 2016-05-11 | 6052028-04 | 346.00 pCi/L |
| 2016-05-20 | 6060438-01 | 672.00 pCi/L |
| 2016-05-27 | 6060438-02 | 38.20 pCi/L |
| 2016-06-02 | 6060438-03 | 640.00 pCi/L |
| 2016-06-10 | 6071085-01 | 910.00 pCi/L |
| 2016-06-17 | 6071085-02 | 298.00 pCi/L |
| 2016-06-22 | 6071085-03 | 297.00 pCi/L |
| 2016-06-28 | 6071085-04 | 1,210.00 pCi/L |
| 2016-07-06 | 6071085-05 | 1,103.00 pCi/L |
| 2016-07-14 | 6081039-01 | 341.00 pCi/L |
| 2016-07-20 | 6081039-02 | 240.00 pCi/L |
| 2016-07-29 | 6081039-03 | 4,884.00 pCi/L |
| 2016-08-04 | 6081039-04 | 1,029.00 pCi/L |
| 2016-08-10 | 6091315-01 | 857.00 pCi/L |
| 2016-08-17 | 6091315-02 | 258.00 pCi/L |
| 2016-08-25 | 6091315-03 | 335.00 pCi/L |
| 2016-09-01 | 6091315-04 | 1,289.00 pCi/L |
| 2016-09-08 | 6091315-05 | 1,409.00 pCi/L |
| 2016-09-15 | 6101142-01 | 44.10 pCi/L |
| 2016-09-21 | 6101142-02 | 238.00 pCi/L |
| 2016-09-30 | 6101142-03 | 254.00 pCi/L |
| 2016-10-06 | 6101142-04 | 1,330.00 pCi/L |
| 2016-11-09 | 6121454-05 | 3,479.00 pCi/L |
| 2016-11-17 | 6121454-01 | 367.00 pCi/L |
| 2016-11-25 | 6121454-02 | 1,966.00 pCi/L |
| 2016-12-07 | 6121454-04 | 401.00 pCi/L |
| 2016-12-15 | 7011875-02 | 1,608.00 pCi/L |
| 2016-12-23 | 7011875-01 | ND |
| 2016-12-30 | 7011875-03 | 1,901.00 pCi/L |
| 2017-01-04 | 7011875-04 | ND |
| 2017-01-11 | 7011875-05 | 911.00 pCi/L |
| 2017-01-19 | 7020475-01 | ND |
| 2017-01-26 | 7020475-02 | ND |
| 2017-02-02 | 7020475-03 | ND |
| 2017-02-08 | 7032440-01 | ND |
| 2017-02-16 | 7032440-02 | ND |
| 2017-02-22 | 7032440-03 | ND |
| 2017-03-01 | 7032440-04 | 340.00 pCi/L |
| 2017-03-08 | 7032440-05 | 1,017.00 pCi/L |
| 2017-03-16 | 7032440-06 | 1,041.00 pCi/L |
| 2017-03-24 | 7041068-01 | ND |
| 2017-03-29 | 7041068-02 | ND |
| 2017-04-05 | 7041068-03 | ND |
| 2017-04-13 | 7050980-01 | 581.00 pCi/L |
| 2017-04-19 | 7050980-02 | 585.00 pCi/L |
| 2017-04-26 | 7050980-03 | ND |
| 2017-05-03 | 7050980-04 | ND |
| 2017-05-11 | 7060237-01 | ND |
| 2017-05-24 | 7060237-02 | ND |
| 2017-05-31 | 7060237-03 | ND |
| 2017-06-08 | 7072749-01 | 815.00 pCi/L |
| 2017-06-14 | 7072749-02 | ND |
| 2017-06-21 | 7072749-03 | ND |
| 2017-06-28 | 7072749-04 | ND |
| 2017-07-12 | 7072749-05 | ND |
| 2017-07-19 | 7083667-01 | ND |
| 2017-07-27 | 7083667-02 | ND |
| 2017-08-03 | 7083667-03 | ND |
| 2017-08-16 | 7083667-04 | 1,698.00 pCi/L |
| 2017-09-13 | 7102477-01 | 1,947.00 pCi/L |
| 2017-09-21 | 7102477-02 | 1,319.00 pCi/L |
| 2017-10-04 | 7102477-03 | 1,893.00 pCi/L |
| 2017-10-11 | 7102477-04 | 1,712.00 pCi/L |
| 2017-11-01 | 7111996-02 | 2,246.00 pCi/L |
| 2017-11-08 | 7111996-03 | 2,448.00 pCi/L |
| 2017-11-15 | 7121503-01 | ND |
| 2017-11-22 | 7121503-02 | 274.00 pCi/L |
| 2017-11-30 | 7121503-03 | 760.00 pCi/L |
| 2017-12-06 | 7121503-04 | ND |
| 2017-12-14 | 8011965-01 | ND |
| 2017-12-20 | 8011965-02 | ND |
| 2017-12-28 | 8011965-03 | ND |
| 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 |