Wisconsin Statutes Environmental Regulation (Ch. 280 to 299) § 280.21. Local authority

(1) Ordinances. The department may authorize counties to adopt ordinances under s. 59.70(6)(b) and (c), relating to the enforcement of this chapter and rules of the department under this chapter. The department shall establish by rule standards for approval of ordinances and enforcement programs. Among other things, the rules may:

(2) Private wells. The department shall define by rule “private well” and “private wells” as used in this section and s. 59.70(6). The definition may not include wells for which plans and specifications must be submitted to the department for approval prior to construction or installation.

(3) Training. The department shall provide training and technical assistance to local government employees and agents for implementation of this section and s. 59.70(6). The department may charge each county which receives training and technical assistance a fee for those services. Fees may not exceed the department's actual costs of providing the services.

(4) Review and audit. The department shall review and audit periodically each ordinance and program adopted under s. 59.70(6) to ascertain compliance with this chapter and with rules of the department under this chapter. If an ordinance or related program is not in compliance, the department may revoke the authority of the county to enforce the ordinance. Revocation may be made only pursuant to written department findings made after a public hearing held in the county upon 30 days advance notice to the clerk of the local unit of government.

(5) Concurrent enforcement. The department may enforce this chapter and rules of the department under this chapter that are covered by an ordinance adopted under s. 59.70(6), in the county with the ordinance, if the department is engaged in audit or review activities, if there is reasonable cause to believe that the ordinance or related enforcement program of the county is not in compliance under sub. (4) or if the department determines that there are special circumstances requiring concurrent enforcement. The department shall continue to enforce this chapter and rules of the department under this chapter that are not covered by an ordinance in counties with ordinances adopted under s. 59.70(6).