Minn. R. 4720.5120
SCHEDULE; INNER WELLHEAD MANAGEMENT ZONE
Wellhead protection measures for the inner wellhead management zone of a public water supply well must be initiated: A. at the time a new public water supply well is constructed; B. before June 1, 1999, for an existing community water supply well; C. before June 1, 1999, for an existing nontransient noncommunity water supply well serving a child care center regulated under chapter 9503 or a school; D. before June 1, 2000, for any other existing nontransient noncommunity water supply well; E. before June 1, 2001, for an existing transient noncommunity water supply well serving a facility licensed by the department; F. before June 1, 2002, for an existing transient noncommunity water supply well serving a facility licensed by the department that is covered by a community health service delegation agreement entered under Minnesota Statutes, section 145A.07 ; and G. before June 1, 2003, for any other existing transient noncommunity water supply well.