| Site | Date (mm/dd/yy) | Time (hh:mm) | Carbaryl | Diazinon | EPTC | Hexazinone | Methidathion | Metolachlor | Molinate |
|---|---|---|---|---|---|---|---|---|---|
| Cache Creek | 2/19/2004 | 14:00 | nd | nd | nd | 19.4 | nd | nd | nd |
| 2/26/2004 | 09:10 | nd | nd | nd | 46.4 | nd | 3.5 | nd | |
| 3/04/2004 | 10:50 | nd | nd | nd | 7.7 | nd | nd | nd | |
| 3/11/2004 | 11:00 | nd | nd | nd | 6.0 | nd | nd | nd | |
| Knights Landing Ridge Cut | 2/19/2004 | 14:35 | nd | 157 | nd | 947 | 39.5 | 22.8 | 12.5 |
| 2/26/2004 | 08:40 | nd | 41.7 | nd | 315 | nd | 10.4 | 27.7 | |
| 3/04/2004 | 11:05 | nd | 40.8 | nd | 409 | nd | 26.9 | 20.4 | |
| 3/11/2004 | 11:15 | nd | 20.7 | nd | 271 | nd | 23.3 | 23.7 | |
| Putah Creek | 2/19/2004 | 10:45 | nd | nd | nd | 15.2 | nd | nd | nd |
| 2/26/2004 | 10:15 | nd | nd | nd | 10.8 | nd | nd | nd | |
| 3/04/2004 | 09:20 | nd | nd | nd | nd | nd | nd | nd | |
| 3/11/2004 | 10:15 | nd | nd | nd | nd | nd | nd | nd | |
| 3/17/2004 | 11:10 | nd | nd | nd | nd | nd | nd | nd | |
| 3/23/2004 | 10:45 | nd | nd | nd | nd | nd | nd | nd | |
| 3/29/2004 | 10:45 | nd | nd | nd | nd | nd | nd | nd | |
| 4/05/2004 | 08:50 | nd | nd | nd | nd | nd | nd | nd | |
| 4/12/2004 | 12:00 | nd | nd | nd | nd | nd | 8.6 | nd | |
| 4/21/2004 | 12:10 | nd | nd | nd | 14.9 | nd | nd | nd | |
| Sacramento River | 2/19/2004 | 15:00 | nd | 28.1 | nd | 31.6 | nd | nd | nd |
| 2/26/2004 | 08:05 | nd | nd | nd | 32.3 | nd | (1.7) | nd | |
| 3/4/2004 | 11:35 | nd | 4.1 | nd | 17.3 | nd | 4 | nd | |
| 3/11/2004 | 11:45 | nd | (3.4) | nd | 10.9 | nd | nd | nd | |
| Sacramento Slough | 2/19/2004 | 15:25 | nd | 11.9 | 11.4 | 328 | nd | 24.5 | 33.3 |
| 2/26/2004 | 07:35 | nd | nd | nd | 17.5 | nd | nd | nd | |
| 3/4/2004 | 12:00 | nd | (0.2) | nd | 22.7 | nd | nd | nd | |
| 3/11/2004 | 12:20 | nd | nd | nd | 15.0 | nd | 3.9 | nd | |
| Toe Drain | 3/11/2004 | 09:30 | nd | 10.1 | nd | 167 | nd | 20.8 | 15.4 |
| 3/17/2004 | 13:05 | nd | 4.0 | nd | 87.5 | nd | 24.2 | 8.6 | |
| 3/23/2004 | 12:15 | nd | 5.7 | nd | 56.9 | nd | 22.1 | nd | |
| 3/29/2004 | 12:00 | 41.3 | nd | nd | 57.9 | nd | 113 | nd | |
| 4/05/2004 | 09:40 | nd | (0.9) | nd | 66.1 | nd | 55.1 | nd | |
| 4/12/2004 | 13:05 | nd | nd | nd | 70.9 | nd | 265 | nd | |
| 4/21/2004 | 13:10 | nd | nd | 32.0 | 196 | nd | 367 | 9.4 | |
| Willow Slough | 2/19/2004 | 12:50 | nd | 12.2 | nd | 2539 | nd | 28.9 | nd |
| 2/26/2004 | 09:50 | nd | 96.4 | nd | 1556 | nd | 49.5 | nd | |
| 3/04/2004 | 10:19 | nd | nd | nd | 369 | nd | 13.5 | nd | |
| 3/11/2004 | 10:35 | nd | nd | nd | 318 | nd | 10.7 | nd | |
| Yolo Pond | 2/19/2004 | 11:45 | nd | 16.0 | nd | 89.8 | nd | nd | nd |
| 3/17/2004 | 12:00 | nd | nd | nd | 174 | nd | 7.2 | nd | |
| 3/23/2004 | 11:30 | nd | nd | nd | 314 | nd | 9.6 | nd | |
| 3/29/2004 | 11:30 | nd | nd | nd | 365 | nd | 9.9 | nd | |
| 4/05/2004 | 09:25 | nd | nd | nd | 352 | nd | 9.9 | nd | |
| 4/12/2004 | 12:30 | nd | nd | nd | 403 | nd | 11.6 | nd | |
| 4/21/2004 | 12:40 | nd | nd | nd | 368 | nd | 6.3 | nd | |
| Site | Date (mm/dd/yy) | Time (hh:mm) | Napropamide | Oxyfluorfen | Pendimethalin | Simazine | Thiobencarb | Trifluralin | |
| Cache Creek | 2/19/2004 | 14:00 | nd | nd | nd | 43.3 | nd | nd | |
| 2/26/2004 | 09:10 | nd | nd | nd | 24.4 | nd | 9.8 | ||
| 3/04/2004 | 10:50 | nd | nd | nd | 30.5 | nd | nd | ||
| 3/11/2004 | 11:00 | nd | nd | nd | 20.8 | nd | nd | ||
| Knights Landing Ridge Cut | 2/19/2004 | 14:35 | 38.4 | nd | 8.0 | 604 | 27.3 | nd | |
| 2/26/2004 | 08:40 | nd | nd | nd | 457 | 30.9 | 9.1 | ||
| 3/04/2004 | 11:05 | nd | nd | nd | 394 | 32.4 | 12.4 | ||
| 3/11/2004 | 11:15 | nd | nd | nd | 266 | 25.3 | nd | ||
| Putah Creek | 2/19/2004 | 10:45 | nd | nd | nd | 41.9 | nd | nd | |
| 2/26/2004 | 10:15 | nd | nd | nd | 84.0 | nd | nd | ||
| 3/04/2004 | 09:20 | nd | nd | nd | 35.3 | nd | nd | ||
| 3/11/2004 | 10:12 | nd | nd | nd | 35.1 | nd | nd | ||
| 3/17/2004 | 11:10 | nd | nd | nd | 39.6 | nd | nd | ||
| 3/23/2004 | 10:45 | nd | nd | nd | 33.6 | nd | nd | ||
| 3/29/2004 | 10:45 | nd | nd | nd | 30.3 | nd | nd | ||
| 4/05/2004 | 08:50 | nd | nd | nd | 28.0 | nd | nd | ||
| 4/12/2004 | 12:00 | nd | nd | nd | 29.4 | nd | 11.2 | ||
| 4/21/2004 | 12:00 | nd | nd | nd | 26.8 | nd | 4.1 | ||
| Sacramento River | 2/19/2004 | 15:00 | nd | nd | nd | 106 | nd | nd | |
| 2/26/2004 | 08:05 | nd | nd | nd | 27.1 | nd | nd | ||
| 3/04/2004 | 11:35 | nd | nd | nd | 43.0 | nd | nd | ||
| 3/11/2004 | 11:45 | nd | nd | nd | 15.9 | nd | nd | ||
| Sacramento Slough | 2/19/2004 | 15:25 | nd | 48.6 | nd | 84.8 | 24.6 | 5.4 | |
| 2/26/2004 | 07:35 | nd | nd | nd | nd | nd | nd | ||
| 3/04/2004 | 12:00 | nd | nd | nd | 49.1 | nd | nd | ||
| 3/11/2004 | 12:20 | nd | nd | nd | 22.4 | nd | nd | ||
| Toe Drain | 3/11/2004 | 09:30 | nd | nd | nd | 164 | nd | 4.1 | |
| 3/17/2004 | 13:05 | nd | nd | nd | 90.1 | 15.3 | 9.4 | ||
| 3/23/2004 | 12:15 | nd | nd | nd | 51.7 | 12.1 | 9.1 | ||
| 3/29/2004 | 12:00 | nd | nd | 9.7 | 44.2 | nd | 4.4 | ||
| 4/05/2004 | 09:40 | nd | nd | 21 | 73.8 | 8.8 | nd | ||
| 4/12/2004 | 13:05 | nd | nd | 8.5 | 50.7 | 10.3 | 6.5 | ||
| 4/21/2004 | 13:10 | nd | nd | nd | 45.9 | 12.8 | 12.5 | ||
| Willow Slough | 2/19/2004 | 12:50 | nd | 39.5 | nd | 85.6 | nd | 66.4 | |
| 2/26/2004 | 09:50 | 78.8 | 71.1 | nd | 148 | nd | 56.8 | ||
| 3/04/2004 | 10:19 | nd | 15.3 | nd | 36.3 | 18.4 | 12.5 | ||
| 3/11/2004 | 10:35 | nd | 30.6 | nd | 23.8 | 9.3 | 9.8 | ||
| Yolo Pond | 2/19/2004 | 11:45 | nd | nd | nd | nd | nd | nd | |
| 3/17/2004 | 12:00 | nd | nd | nd | 61.7 | nd | nd | ||
| 3/23/2004 | 11:30 | nd | nd | nd | 49.0 | nd | nd | ||
| 3/29/2004 | 11:30 | nd | nd | nd | 34.0 | nd | 4.8 | ||
| 4/05/2004 | 09:25 | nd | nd | nd | 24.4 | nd | nd | ||
| 4/12/2004 | 12:30 | nd | nd | nd | 20.0 | nd | nd | ||
| 4/21/2004 | 12:40 | nd | nd | nd | 26.0 | nd | nd |