CERTIFIED LABS
The following member labs have met the certification qualifications of ALTA as of - December 2024.
The Agricultural Laboratory Testing Association (ALTA) strives to ensure that member labs always provide their clients with accurate, reliable and consistent data. This is accomplished through lab participation in the ALTA-Lab Accreditation Program (LAP), which utilizes soil analyses data developed through the Agricultural Laboratory Proficiency (ALP) Program or North American Proficiency Testing (NAPT) Program, international testing programs. Members submit data to the ALTA-LAP program and it is evaluated every four months.
Labs must meet certain qualification standards each cycle to remain certified. The rules of certification may be found by clicking on the “Soil Certification” section on this site’s header bar.
CERTIFIED LABS - CYCLE 55 - DECEMBER-2024
Fort Wayne, IN
Fort Wayne, IN
Fort Wayne, IN
pH Water
pH Salt
Buffer pH
Organic Matter LOI
Bray-P1
P-Mehlich 3 ICP
K-Melich 3 ICP
K-Ammonium Acetate
Harrington, DE
Fort Wayne, IN
Fort Wayne, IN
pH Water
Organic Matter LOI
P-Mehlich 3 ICP
K-Mehlich 3 ICP
Bonduel, WI
Fort Wayne, IN
Ellsworth, IA
pH Water
Buffer pH
Organic Matter LOI
Bray-P1
P-Mehlich 3 ICP
K-Mehlich 3 ICP
K-Ammonium Acetate DTPA Zinc
Ellsworth, IA
Fort Wayne, IN
Ellsworth, IA
pH Water
Buffer pH
Organic Matter LOI
Bray-P1
P-Mehlich 3 ICP
K-Ammonium Acetate
DTPA Zinc
Lincoln, NE
New Bremen, OH
Stratford, WI
pH Water
Buffer pH
Organic Matter LOI
Bray-P1
P-Mehlich 3 ICP
K-Ammonium Acetate
DTPA Zinc
Stratford, WI
New Bremen, OH
Stratford, WI
pH Water
Buffer pH
Organic Matter LOI
Bray-P1
P-Mehlich 3 ICP
K-Mehlich 3 ICP
K-Ammonium Acetate
DTPA Zinc
Lakewood, IL
New Bremen, OH
New Bremen, OH
pH Water
Organic Matter LOI
P-Mehlich 3 ICP
K-Mehlich 3 ICP
New Bremen, OH
New Bremen, OH
New Bremen, OH
pH Water
pH Salt
Buffer pH
Bray-P1
P-Mehlich 3 ICP
K-Mehlich 3 ICP
K-Ammonium Acetate
Charter Soil Testing - Dwight, IL
Charter Soil Testing - Dwight, IL
Charter Soil Testing - Dwight, IL
pH Water
Organic Matter LOI
Bray-P1
P-Mehlich 3 Color
K-Mehlich 3 ICP
Centralia, IL
Charter Soil Testing - Dwight, IL
Charter Soil Testing - Dwight, IL
pH Water
Organic Matter LOI
P-Mehlich 3 ICP
K-Mehlich 3 ICP
Athens, IL
Charter Soil Testing - Dwight, IL
KSI Labs - Shelbyville, IL
pH Water
Buffer pH
P-Mehlich 3 ICP
K-Mehlich 3 ICP
KSI Labs - Shelbyville, IL
Charter Soil Testing - Dwight, IL
KSI Labs - Shelbyville, IL
pH Water
Buffer pH
Organic Matter LOI
P-Mehlich 3 ICP
K-Mehlich 3 ICP
Omaha, NE
Washington Court, OH
Windsor, IL
pH Water
pH Salt
Organic Matter LOI
Bray-P1
P-Mehlich 3 Color
K-Ammonium Acetate
Windsor, IL
Washington Court, OH
Windsor, IL
pH Water
P-Mehlich 3 Color
K-Mehlich 3 ICP
Watertown, WI
Washington Court, OH
Washington Court, OH
pH Water
Organic Matter LOI
Bray-P1
P-Mehlich 3 ICP
K-Mehlich 3 ICP
Washington Court, OH
Washington Court, OH
Washington Court, OH
pH Water
pH Salt
Buffer pH
Organic Matter LOI
Bray-P1
P-Mehlich 3 ICP
P-Mehlich 3 Color
K-Melich 3 ICP
K-Ammonium Acetate DTPA Zinc
Indianapolis, IN
Memphis, TN - Champaign, IL Atlantic, IA
Indianapolis, IN
pH Water
pH Salt
Buffer pH
Organic Matter LOI
P-Mehlich 3 ICP
K-Melich 3 ICP
Fairbury, IL
Memphis, TN - Champaign, IL Atlantic, IA
Indianapolis, IN
pH Water
Buffer pH
Organic Matter LOI
P-Mehlich 3 ICP
K-Mehlich 3 ICP
DTPA Zinc
Kearney, NE
Memphis, TN - Champaign, IL Atlantic, IA
Memphis, TN - Champaign, IL Atlantic, IA
pH Water,
pH Salt
Buffer pH
Organic Matter LOI
Bray-P1
P-Mehlich 3 ICP
K-Ammonium Acetate DTPA Zinc
Memphis, TN - Champaign, IL Atlantic, IA
Memphis, TN - Champaign, IL Atlantic, IA
Memphis, TN - Champaign, IL Atlantic, IA
pH Water
pH Salt
Bray-P1
P-Mehlich 3 ICP
K-Mehlich 3 ICP
K-Ammonium Acetate
