ATCP 50.50(6)(a)1. 1. Review relevant laboratory records.

ATCP 50.50(6)(a)2. 2. Evaluate laboratory facilities and methods.

ATCP 50.50(6)(a)3. 3. Evaluate the proficiency of laboratory analysts.

ATCP 50.50(6)(a)4. 4. Evaluate the laboratory’s proficiency in testing check samples provided by the department or its agent.

ATCP 50.50(6)(b) (b) A laboratory operator shall cooperate with a reasonable review under par. (a).

ATCP 50.50(7) (7) Denying or withdrawing certification.

ATCP 50.50(7)(a) (a) The department may deny, suspend, revoke, or impose conditions on a certification under this section if the department finds that the laboratory has done any of the following:

ATCP 50.50(7)(a)1. 1. Failed to submit a complete application under sub. (2).

ATCP 50.50(7)(a)2. 2. Failed to perform soil tests with reasonable accuracy.

ATCP 50.50(7)(a)3. 3. Failed to comply with applicable requirements under this section.

ATCP 50.50(7)(a)4. 4. Falsified relevant information.

ATCP 50.50(7)(b) (b) If the department denies, suspends, revokes, or imposes conditions on a laboratory certification, the department shall give the laboratory operator written notice of the department’s reasons for that action.

ATCP 50.50(7)(c) (c) A laboratory operator may request a contested case hearing under s. 227.42, Stats. and ch. ATCP 1 on the department’s action under this subsection.

ATCP 50.50(8) (8) Manure testing laboratories. Manure nutrient values determined by laboratory analyses do not qualify under s. ATCP 50.04 (3) (dm) 2. unless the laboratory performing those analyses complies with all of the following:

ATCP 50.50(8)(a) (a) The laboratory participates in the manure analysis proficiency program administered by the Minnesota department of agriculture, or in an equivalent proficiency program administered by the University of Wisconsin soil analysis laboratory, and provides copies of proficiency reports to the department upon request.

ATCP 50.50 Note Note: A manure testing laboratory may qualify under sub. (8), regardless of whether the laboratory is certified as a soil testing laboratory under sub. (1). A laboratory may contact the department, at the following address, for information on how to enroll in a manure analysis proficiency program under par. (a):

ATCP 50.50 Note Wis. Department of Agriculture, Trade and Consumer Protection
Agricultural Resource Management Division
Nutrient Management Program
PO Box 8911
Madison, WI 53708-8911

ATCP 50.50(8)(b) (b) The laboratory is capable of performing all of the following manure analyses according to methods prescribed by the University of Wisconsin-Extension in Recommended Methods of Manure Analysis, UWEX publication A3769 (2003):

ATCP 50.50(8)(b)1. 1. Percent dry matter (DM).

ATCP 50.50(8)(b)2. 2. Total nitrogen.

ATCP 50.50(8)(b)3. 3. Total phosphorus expressed as P205.

ATCP 50.50(8)(b)4. 4. Total potassium expressed as K20.

ATCP 50.50 Note Note: The University of Wisconsin-Extension publication, Recommended Methods of Manure Analysis, UWEX publication A3769 (2003), is on file with the department and legislative reference bureau. Copies may be obtained by visiting the UWEX website at: http://learningstore.uwex.edu.

ATCP 50.50(8)(c) (c) The laboratory is capable of estimating total and available nutrient levels based on the manure tests under par. (b) and the availability percentages shown in Nutrient Application Guidelines for Field, Vegetable and Fruit Crops in Wisconsin, UWEX publication A2809 (2012).

ATCP 50.50(9) (9) Conflict of interest. For the purpose of complying with s. ATCP 50.04 (3) a privately owned laboratory certified under this section shall not perform soil test analysis on cropland managed or owned by a person managing or having a substantial financial interest in the laboratory.

ATCP 50.50 History History: CR 01-090: cr. Register September 2002 No. 561, eff. 10-1-02; CR 05-013: am. (2) (intro.), (b), (c), (d) 2., and (f), cr. (8) Register May 2007 No. 617, eff. 6-1-07; CR 08-075: am. (2) (d) (intro.) and (8) (c) Register April 2009 No. 640, eff. 5-1-09; CR 13-016: am. (2) (intro.), (d), (4) (intro.) Register February 2014 No. 698, eff. 5-1-14; CR 16-083: am. (2) (d) (intro.), (8) (c), cr. (9) Register January 2018 No. 745, eff. 2-1-18; CR 23-024: cr. (7) (c) Register May 2024 No. 821, eff. 6-1-24.

ATCP 50.52 ATCP 50.52 Training for county staff.

ATCP 50.52(1) (1) Role of the department. The department, in consultation with the county land conservation committees and the training advisory committee appointed under sub. (2), may do any of the following to ensure adequate training of county land conservation committee staff who administer programs under this chapter or s. 281.65, Stats.:

ATCP 50.52(1)(a) (a) Determine training needs and priorities.