ATCP 30.32 NoteNote: The following table summarizes subs. (1) and (2). See ss. ATCP 30.34 to 30.38 for additional local restrictions. ATCP 30.32(3)(3) If a rescue treatment is needed for a field of seed corn or sweet corn, the total amount of atrazine applied to that field in that calendar year may not exceed the following applicable amounts: ATCP 30.32(3)(a)(a) 1.5 lbs. per acre per calendar year if at least one-fourth of the surface soil is a coarse soil. ATCP 30.32(3)(b)(b) 2.0 lbs. per acre per calendar year if less than one-fourth of the surface soil is a coarse soil. ATCP 30.32 NoteNote: The following table summarizes sub. (3). See ss. ATCP 30.34 to 30.38 for additional local restrictions. ATCP 30.32(4)(4) An additional 0.5 lb. of atrazine active ingredient may be added to the maximum annual rate under sub. (2) if no atrazine product was applied to the application site during the previous calendar year. ATCP 30.32 HistoryHistory: Cr. Register, March, 1991, No. 423, eff. 4-1-91; am. (intro.), (1) and (2), r. and recr. (3), r. (3) Table 1, Register, March, 1993, No. 447, eff. 4-1-93; renum. from ATCP 30.10, Register, May, 1998, No. 509, eff. 6-1-98; CR 08-075: am. (3) (intro.), (1), (2), (3) (a) and (b), cr. (4) Register April 2009 No. 640, eff. 5-1-09. ATCP 30.33ATCP 30.33 Annual report and recommendations. ATCP 30.33(1)(1) Annual report. The department shall provide the board with an annual report which includes state groundwater test results under sub. (2) and the department’s recommendations under sub. (3). If the department recommends that the use of atrazine be further restricted or prohibited, the department shall submit draft rules to implement its recommendations, according to sub. (4). ATCP 30.33(2)(2) Groundwater test results. The annual report under sub. (1) shall indicate the results of statewide groundwater tests for atrazine and its metabolites. The report shall indicate all groundwater test results that equal or exceed the preventive action limit for atrazine, and all results that equal or exceed the enforcement standard for atrazine. The report shall also discuss the results of the department’s investigations related to atrazine in groundwater, significant trends or developments related to atrazine in groundwater, and other information which the department considers relevant to the regulation of atrazine. ATCP 30.33(3)(3) Recommendations. Based on groundwater test results and other relevant information, the department shall annually evaluate its restrictions on the use of atrazine. As part of its annual report under sub. (1), the department shall recommend further restrictions on atrazine use which the department considers necessary, pursuant to ch. ATCP 31 and this chapter. This may include recommendations for any of the following: ATCP 30.33(3)(a)(a) Statewide restrictions or prohibitions against the use of atrazine. ATCP 30.33(4)(4) Rules. If the department recommends further restrictions on the use of atrazine under sub. (3), the department shall submit proposed hearing draft rules to implement its recommendations. If the board declines to adopt final draft rules, or approves final draft rules that differ from the department’s hearing draft rules, the department shall identify each rule modification to the legislature, as part of the department’s report under s. 227.19 (2), Stats. Except in an emergency, the department shall transmit its final draft rules for legislative committee review under s. 227.19, Stats., by January 1 of each year. ATCP 30.33 HistoryHistory: Cr. Register, March, 1993, No. 447, eff. 4-1-93; renum. from ATCP 30.11, Register, May, 1998, No. 509, eff. 6-1-98; correction in (3) (b) and (c) made under s. 13.93 (2m) (b) 7., Stats., Register, May, 1998, No. 509; CR 10-122: am. (3) (c) Register July 2011 No. 667, eff. 8-1-11. ATCP 30.34ATCP 30.34 Creation of atrazine management areas. ATCP 30.34(1)(1) Authority. In addition to any other restrictions under this chapter or ch. ATCP 31, the department may, by rule, restrict the use of atrazine product in atrazine management areas designated according to this section. ATCP 30.34(2)(2) Criteria. The department shall create an atrazine management area whenever it determines that supplementary atrazine use restrictions are appropriate in that area to prevent or minimize atrazine contamination of groundwater. The department may consider the following factors, among others, in determining whether to create atrazine management areas: ATCP 30.34(2)(a)(a) The frequency of atrazine detections in reliable groundwater test samples taken from a geographically proximate area. ATCP 30.34(2)(b)(b) The frequency of atrazine detections over the preventive action limit or over the enforcement standard in reliable groundwater samples taken from a geographically proximate area. ATCP 30.34(2)(c)(c) The finding of an elevated mean or median concentration of atrazine in reliable groundwater samples taken from a geographically proximate area, as compared to statewide concentrations. ATCP 30.34(2)(d)(d) Results of analysis of reliable groundwater samples from monitoring wells in areas with known atrazine use histories. ATCP 30.34(2)(e)(e) The uniformity of hydrogeologic characteristics in a geographically proximate area. ATCP 30.34(2)(f)(f) Research results indicating susceptibility of the groundwater to atrazine contamination in a geographically proximate area. ATCP 30.34(2)(g)(g) Technical or economic factors which are specific to a geographically proximate area. ATCP 30.34(4)(4) Determining boundaries. An atrazine management area may encompass land areas which, in the department’s judgment, are susceptible to atrazine contamination of groundwater based on the factors identified under sub. (2). The boundaries of the atrazine management area shall be sufficient to minimize the concentration of atrazine in groundwater where technically and economically feasible or regain and maintain compliance with the preventive action limit, if technically or economically feasible, as provided in s. 160.23, Stats. Boundaries of atrazine management areas may include any of the following: ATCP 30.34(4)(a)(a) Mapped boundaries between soil types or other hydrogeologic features. ATCP 30.34(4)(b)(b) Groundwater or surface water divides such as watershed boundaries. ATCP 30.34(4)(c)(c) Legal land description boundaries including political boundaries. ATCP 30.34(5)(5) Scope of restrictions. The department may impose any of the following restrictions in an atrazine management area: ATCP 30.34(5)(b)(b) Limitations on the purpose for which atrazine product may be used, including limitation on the crops and target pests for which atrazine product may be used. ATCP 30.34(5)(c)(c) Limitations on the rate at which atrazine product may be applied. ATCP 30.34(5)(d)(d) Limitations on the time or frequency of atrazine product use. ATCP 30.34(5)(f)(f) Reporting or permit requirements applicable to the use of atrazine product. ATCP 30.34(6)(6) Atrazine management plan. For each atrazine management area established under this subchapter, the department shall also establish an atrazine management plan. The atrazine management plan shall include all of the area in the atrazine management area, and any additional area determined by the department as necessary to achieve the purposes of the atrazine management area. The atrazine management plan shall contain: ATCP 30.34(6)(a)(a) A delineation of the boundaries of the area subject to the plan. ATCP 30.34(6)(d)(d) A schedule for review of the effectiveness of the prohibitions and restrictions in the atrazine management area. ATCP 30.34 HistoryHistory: Cr. Register, March, 1991, No. 423, eff. 4-1-91; am. (1), r. (3), Register, March, 1993, No. 447, eff. 4-1-93; renum. from ATCP 30.18, Register, May, 1998, No. 509, eff. 6-1-98. ATCP 30.35ATCP 30.35 Creating prohibition areas. The department may prohibit use of atrazine products in any manner authorized under ss. 94.67 to 94.71, Stats., or under ch. 160, Stats., including the following: ATCP 30.35(2)(2) Statewide or regional prohibitions. The department may prohibit the use of atrazine products on a statewide or regional basis under s. ATCP 31.08 (3). ATCP 30.35 HistoryHistory: Cr. Register, March, 1991, No. 423, eff. 4-1-91; renum. from ATCP 30.25, Register, May, 1998, No. 509, eff. 6-1-98. ATCP 30.36ATCP 30.36 Mixing and loading prohibited. No person may mix or load any atrazine product in a prohibition area identified under s. ATCP 30.37 unless the mixing and loading is conducted over a spill containment surface which complies with s. ATCP 29.45. ATCP 30.36 HistoryHistory: Cr. Register, March, 1992, No. 435, eff. 4-1-92; correction made under s. 13.93 (2m) (b) 7., Stats., Register, March, 1994, No. 459; renum. from ATCP 30.26, Register, May, 1998, No. 509, eff. 6-1-98; correction made under s. 13.93 (2m) (b) 7., Stats., Register, May, 1998, No. 509; correction made under s. 13.93 (2m) (b) 7., Stats., Register, March, 1999, No. 519. ATCP 30.37ATCP 30.37 Prohibition areas. No person may apply any atrazine product in any of the following prohibition areas: ATCP 30.37(1)(1) The lower Wisconsin river valley except that atrazine may be applied to medium- and fine-textured soils in Township 9 North, Range 1 West, sections 27, 28, 29, 30, 31, 32, 33, and 34 and Township 9 North, Range 2 West, sections 25, 26, 27, 28, 32, 33, 34, 35, and 36 in compliance with ss. ATCP 30.31 and 30.32 ATCP 30.37(2)(2) Any of the prohibition areas identified in Appendix A. ATCP 30.37 HistoryHistory: Cr. Register, March, 1991, No. 423, eff. 4-1-91; r. and recr. Register, March, 1992, No. 435, eff. 4-1-92; r. and recr. Register, March, 1993, No. 447, eff. 4-1-93; am. (1), Register, March, 1994, No. 459, eff. 4-1-94; renum. from ATCP 30.30, Register, May, 1998, No. 509, eff. 6-1-98; correction in (1) made under s. 13.93 (2m) (b) 7., Stats., Register, May, 1998, No. 509. ATCP 30.375ATCP 30.375 Repealing prohibition areas. The department may repeal or reduce the size of a prohibition area under s. ATCP 30.37 if all the following conditions are met: ATCP 30.375(1)(1) Tests on at least 3 consecutive groundwater samples, drawn from each well site in the prohibition area at which the concentration of atrazine and its metabolites previously attained or exceeded the enforcement standard under s. NR 140.10, show that the concentration at that well site has fallen to, and remains at, not more than 50% of the enforcement standard. The 3 consecutive samples shall be collected at each well site at intervals of at least 6 months, with the first sample being collected at least 6 months after the effective date of the prohibition. A monitoring well approved by the department may be substituted for any well site which is no longer available for testing. ATCP 30.375(2)(2) Tests conducted at other well sites in the prohibition area during the same retesting period, if any, reveal no other concentrations of atrazine and its metabolites that exceed 50% of the enforcement standard under s. NR 140.10. ATCP 30.375(3)(3) The department determines, based on credible scientific evidence, that renewed use of atrazine products in the prohibition area is not likely to cause a renewed violation of the enforcement standard. ATCP 30.375 NoteNote: The department may reinstate a repealed prohibition area if groundwater testing at a point of standards application shows an increasing trend of atrazine contamination, suggesting that contamination may again attain or exceed the enforcement standard.
ATCP 30.375 HistoryHistory: Cr. Register, April, 1998, No. 508, eff. 5-1-98; renum. from ATCP 30.05, Register, May, 1998, No. 509, eff. 6-1-98; correction in (intro.) made under s. 13.93 (2m) (b) 7., Stats., Register, May, 1998, No. 509. ATCP 30.38(1)(1) Research exemption. Notwithstanding any provision of this chapter, the department may issue a written permit authorizing the use of atrazine for bona fide research purposes. An applicant for a research permit shall apply to the department in writing. The application shall describe the proposed research, and the amounts and locations of proposed atrazine applications. The department may require an applicant to file other information which the department considers necessary for its review of the application. ATCP 30.38(2)(a)(a) Notwithstanding any provision of this chapter, the department may issue a written permit authorizing any person to land spread soils or water containing residues of atrazine or its metabolites in order to remedy soil or water contamination. Authorization, if any, shall be given in writing. The amount of atrazine and atrazine metabolites applied to a site by means of land spreading may not exceed the amount of atrazine active ingredient permitted under s. ATCP 30.32. ATCP 30.38 HistoryHistory: Cr. Register, March, 1991, No. 423, eff. 4-1-91; renum. to be (1), cr. (2), Register, March, 1993, No. 447, eff. 4-1-93; am. (2) (a) and (b), Register, March, 1994, No. 459, eff. 4-1-94; r. (2) (b), (c), renum. (2) (a) to be (2) and am., Register, March, 1995, No. 471, eff. 4-1-95; renum. from ATCP 30.35, Register, May, 1998, No. 509, eff. 6-1-98; correction in (2) made under s. 13.93 (2m) (b) 7., Stats., Register, May, 1998, No. 509.
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