An official website of the United States government.

This is not the current EPA website. To navigate to the current EPA website, please go to www.epa.gov. This website is historical material reflecting the EPA website as it existed on January 19, 2021. This website is no longer updated and links to external websites and some internal pages may not work. More information »

Environmental Chemistry Methods (ECM) Index - E

Analyte(s) by Pesticide ECM MRID Matrix Method Date
Emamectin Benzoate & Its 8,9-Z Isomer 43404305 Soil 9/14/94
Endosulfan 41468601 Soil/Water 1/1/87
Endosulfan I 41164101 Soil 4/4/89
Endosulfan I 41164101 Water 7/1/88
Endothall 44093402 Soil/Sediment 12/28/92
Endothall 44093402 Water 2/3/93
EPTC 41724305 Soil 2/15/89
Esfenvalerate 41503001 Soil/Water 2/1/86
Esfenvalerate 42148201 Soil/Water 5/28/91
Esfenvalerate (Multi-analyte) 47053001 Sediment 11/29/06
Esfenvalerate Degradate Cypermethrin 41788001 Water 4/1/88
Ethaboxam 48535670 Soil 7/29/03
Ethaboxam 48535671 Water 7/29/03
Ethaboxam & Degradates 49489941 Soil 7/8/15
Ethalfluralin (multi-analyte) 48915801 Soil 5/11/07
Ethalfluralin 49385902 Water 12/21/12
Ethephon  49305602 Soil 1/16/14
Ethephon 49305604 Water 1/23/14
Ethion 42113701 Soil 11/25/91
Ethoprop 41712401 Soil 11/2/90
Etofenprox & Degradates 46779716 Soil 8/24/05
Etofenprox & Degradates 46779716 Water 8/24/05
Etoxazole & Degradates R3 & R13 45621721 Soil 1/29/01
Etoxazole & Degradates R8 & R13 50539904 Water & Sediment 10/25/17
Etoxazole Degradates R4, R7, R8, & R11 45621721 Soil 1/29/01
Etridiazole 44875401 Water 6/21/99
Etridiazole & Degradates 50534504 Soil  1/9/18
Etridiazole & Degradates 50534503 Water 12/21/17

DISCLAIMER

EPA makes no claim of validity by posting these methods, but recognizes that the methods may be of some utility to state, tribal, and local authorities. In addition, not all methods listed are independently validated.

Top of Page