The laboratories listed below have submitted information requested on Minnesota Department of Agriculture (MDA) guidance document GD24 Fixed Base Laboratory Quality Assurance/Quality Control Plans. The information has been reviewed and these labs can be used by contractors to perform analysis without submitting additional laboratory information. Pre-approved commercial laboratories have Quality Assurance/Quality Control Plans and methods on file with the MDA.
The pre-approved laboratories must use the methods that are approved and on file with the MDA. We have noted on the listing if a laboratory’s reporting limit does not meet the program reporting limits (RL) required at most MDA agricultural chemical sites. This list will be updated periodically. The MDA understands that when new analytes were added to MDA Lists 1, 2, 3 and 4, it became challenging for laboratories to meet all the program RLs. For a few analytes, the MDA may grant laboratories an exception to the program RLs which will be evaluated annually. The exceptions will be evaluated based on number of capable labs, changes in drinking water standards, and changes in pesticide label rates, among other factors. The exceptions may be removed at any time. Labs will be notified when exceptions are removed or modified.
If a contractor is considering using a laboratory not on the pre-approved list, the laboratory should submit the information required on MDA guidance document GD24 Fixed Base Laboratory Quality Assurance/Quality Control Plans at least two (2) months prior to analysis to allow MDA staff to review and approve the method.
The current MDA Lists 1, 2, 3 and 4 Pesticides and Nutrients are listed below. It is the responsibility of the contractor to ensure that the correct compound list is analyzed, and the site-specific target compound reporting limits are met. The pre-approved commercial laboratory program is not a certification program, nor does MDA endorse any particular laboratory. The MDA pesticide programs operate under Environmental Protection Agency Federal Insecticide, Fungicide and Rodenticide Act (FIFRA) guidelines.
The MDA also pre-approves mobile field methods for use on agricultural chemical incident investigations and cleanups. Field or mobile laboratories interested in becoming pre-approved must submit the information outlined in MDA guidance document GD25 Mobile Laboratory Quality Assurance/Quality Control Plans, which can be found on the MDA website.
|
MDA List 1 Pesticides |
Soils RL (mg/Kg) |
Water RL (µg/L) |
|---|---|---|
| Acetochlor (Surpass) |
0.05 |
0.5 |
| Alachlor (Lasso) |
0.05 |
0.5 |
| Atrazine (Aatrex) |
0.04 |
0.5 |
| Bifenthrin (Capture LFR) |
0.05 |
0.5 |
| Chlorpyrifos (Lorsban) |
0.05 |
0.5 |
| Cyanazine (Bladex) |
0.09 |
0.2 |
| Deethylatrazine |
0.05 |
0.5 |
| Deisopropylatrazine |
0.05 |
0.5 |
| Dimethenamid (Frontier) |
0.05 |
0.5 |
| EPTC (Eradicane) |
0.05 |
0.5 |
| Ethalfluralin (Sonalan) |
0.05 |
0.5 |
| Fonofos (Dyfonate) |
0.03 |
0.5 |
| Lambda-cyhalothrin (Lamcap II) |
0.08 |
0.1 |
| Metolachlor (Dual) |
0.05 |
0.5 |
| Metribuzin (Sencore) |
0.05 |
0.5 |
| Pendimethalin (Prowl) |
0.05 |
0.5 |
| Phorate (Thimet) |
0.05 |
0.3 |
| Prometon (Pramitol) |
0.05 |
0.5 |
| Propachlor (Ramrod) |
0.03 |
0.5 |
| Propazine (Milogard) |
0.05 |
0.5 |
| Simazine (Princep) |
0.05 |
0.5 |
| Triallate (Far-go) |
0.05 |
0.5 |
| Trifluralin (Treflan) |
0.05 |
0.5 |
| MDA List 2 Pesticides |
Soils RL (mg/Kg) |
Water RL (µg/L) |
| 2,4,5-T |
0.05 |
0.5 |
| 2.4,5-TP (Silvex) |
0.1 |
0.5 |
| 2,4-D (Enlist One) |
0.1 |
0.5 |
| 2,4-DB (Agrisolutions 2,4-DB 200) |
0.05 |
0.5 |
| Bentazon (Basagran) |
0.1 |
0.5 |
| Clopyralid ( Stinger) |
0.09 |
0.5 |
| Dicamba (Diflexx) |
0.1 |
0.5 |
| MCPA |
0.05 |
0.3 |
| Picloram (Tordon 22k) |
0.05 |
0.5 |
| Triclopyr (Garlon 4 Ultra) |
0.1 |
0.5 |
| MDA List 3 Pesticides |
Soils RL (mg/Kg) |
Water RL (µg/L) |
| AMPA |
0.1 |
1 |
| Glyphosate (Round up) |
0.1 |
1 |
| MDA List 4 Pesticides |
Soils RL (mg/Kg) |
Water RL (µg/L) |
| Flumetsulam (Accolade) |
0.02 |
0.5 |
| Formesafen (Flexstar) |
0.05 |
0.5 |
| Imazethapyr (Pursuit) |
0.02 |
0.5 |
| Mesotrione (Callisto) |
0.03 |
0.5 |
| Sulfentrazone (Authority) |
0.05 |
0.5 |
| Tembotrione (Laudis) |
0.005 |
0.5 |
|
Nutrients |
Soils RL (mg/Kg) |
Water RL (mg/L) |
| Nitrate + Nitrite - N |
Not Applicable |
1.0 |
| Nitrate - N |
10 |
Not Applicable |
| Total Kjeldahl Nitrogen |
150 |
1.0 |
NA= Not Applicable
mg/Kg = milligrams per kilogram
ug/L= micrograms per liter
Pre-Approved Commercial Laboratories and Methods: Fixed Base and Mobile
-
ALS Environmental - Holland Facility Fixed Base
3352 128th Avenue, Holland, MI 49424, 616-399-6070
Pre-approved Analytical Methods: Status - Current
Soil: Ammonia • Nitrate • Total Kjeldahl Nitrogen
Water: Ammonia • Nitrate + Nitrite • Total Kjeldahl Nitrogen -
Keystone Laboratories, Inc. Fixed Base
600 East 17th Street South, Newton, IA 50208, 641-792-8451
Pre-approved Analytical Methods: Status - Current
Soil: Ammonia • Nitrate
Water: Ammonia • Nitrate + Nitrite -
Legend Technical Services Fixed Base
88 Empire Drive, St. Paul, MN 55103, 651-642-1150
Pre-approved Analytical Methods: Status - Current
Soil: Nitrate
Water: Nitrate + Nitrite -
Microbac Laboratories, Inc. – Arcata Fixed Base
5680 West End Road, Arcata, CA 95521, 707-822-4649
Pre-approved Analytical Methods: Status - Current
Soil: MDA List 3
Water: MDA List 3 -
Minnesota Valley Testing Laboratories, Inc. (MVTL) Fixed Base
1126 North Front Street, New Ulm, MN 56073, 507-354-8517
Pre-approved Analytical Methods: Status - Current
Soil: MDA List 1 • Ammonia • Nitrate • Total Kjeldahl Nitrogen
Water: MDA List 1 • Ammonia • Nitrate + Nitrite • Total Kjeldahl Nitrogen -
Pace Analytical® - Duluth Fixed Base
4730 Oneota Street, Duluth, MN 55807, 218-336-2115
Pre-approved Analytical Methods: Status - Current
Soil: Ammonia • Nitrate • Total Kjeldahl Nitrogen
Water: Ammonia • Nitrate + Nitrite • Total Kjeldahl Nitrogen -
Pace Analytical® - Minneapolis Fixed Base
1700 Elm Street, Suite 200, Minneapolis, MN 55414, 612-607-6352
Pre-approved Analytical Methods: Status - Current
Soil: Ammonia • Nitrate • Total Kjeldahl Nitrogen
Water: Ammonia • Nitrate + Nitrite • Total Kjeldahl Nitrogen -
Pace Analytical® - Green Bay Fixed Base
1241 Bellevue Street, Green Bay, WI 54302, 902-321-9426
Pre-approved Analytical Methods: Status - Current
Soil: MDA List 1 • Ammonia • Nitrate • Total Kjeldahl Nitrogen
Water: MDA List 1 • Ammonia • Nitrate + Nitrite • Total Kjeldahl Nitrogen -
South Dakota Agricultural Laboratories Fixed Base
1335 Western Avenue, Brookings, SD 57006, 605-692-7325
Pre-approved Analytical Methods: Status - Current
Soil: MDA List 2
Water: MDA List 2
