281.346(2)(a)(a) Use of surface water divide. For the purposes of this section, the surface water divide is used to determine whether a withdrawal or transfer of surface water or groundwater is from the Great Lakes basin.

281.346(2)(b) (b) Diversions and withdrawals from more than one source. For the purposes of this section, the diversion or withdrawal of water from more than one source within the Great Lakes basin to supply a single facility or public water supply system is considered one diversion or withdrawal.

281.346(2)(c) (c) Water loss. The department shall promulgate rules for determining the amount of water loss from consumptive uses.

281.346(2)(d) (d) County boundaries. For the purposes of sub. (1) (d), (t), and (tm), a county's boundaries as of December 13, 2005, shall be used to determine whether a county lies partly within the Great Lakes basin.

281.346(2)(e)1g.1g. The baseline for a withdrawal that before December 8, 2008, averaged 100,000 gallons per day or more in any 30-day period but to which subd. 1m. does not apply is the amount determined under sub. (4e).

281.346(2)(e)1m. 1m. If a person making a withdrawal that averages 100,000 gallons per day or more in any 30-day period registered the withdrawal under s. 281.344 (3) (a) 1. and reported as required under s. 281.344 (3) (e) and the department did not automatically issue a notice of coverage under s. 281.344 (4s) (c) or an individual permit under s. 281.344 (5) (c) for the withdrawal, the baseline for the withdrawal is the amount determined under s. 281.344 (5m) for the withdrawal or, if the department determines a different amount under sub. (4e), the amount determined under sub. (4e).

281.346(2)(e)1r. 1r. The baseline for a withdrawal not covered by subd. 1g. or 1m. is zero.

281.346(2)(e)2. 2. The baseline water loss for a consumptive use for which the department has specified an authorized base level of water loss under s. 281.35 (6) (a) 2. is the amount of that authorized base level on the compact's effective date.

281.346(2)(e)4. 4. The baseline volume for a diversion for which the department has issued an approval under s. 281.344 (3m) or (4) before the compact's effective date is the interbasin transfer amount specified in the approval on the compact's effective date.

281.346(2)(e)6. 6. The department shall provide a list of the baseline volumes determined under this paragraph to the Great Lakes council and the regional body no later than 12 months after the compact's effective date.

281.346(2)(em) (em) Change of ownership. Regional review or Great Lakes council approval is not required when there is a change of ownership of a water supply system that withdraws, diverts, or consumptively uses waters of the Great Lakes basin unless the new owner proposes a change that is otherwise subject to regional review or Great Lakes council approval.

281.346(2)(f) (f) Hydrologic units. The Lake Michigan and Lake Huron watershed shall be considered to be a single hydrologic unit and watershed.

281.346(2)(g) (g) Public trust doctrine. Nothing in this section may be interpreted to change the application of the public trust doctrine under article IX, section 1, of the Wisconsin Constitution or to create any new public trust rights.

281.346(3)(a)1.1. Any person who proposes to begin a withdrawal from the waters of the state using a water supply system that will have the capacity to withdraw an average of 100,000 gallons per day or more in any 30-day period, to increase the capacity of a water supply system so that it will have the capacity to withdraw an average of 100,000 gallons per day or more in any 30-day period, or to begin a diversion shall register the withdrawal or diversion with the department.

281.346(3)(a)2. 2. Any person who, on July 1, 2009, has a water supply system with the capacity to make a withdrawal from the waters of this state averaging 100,000 gallons per day or more in any 30-day period and who has not registered the withdrawal under s. 281.344 (3) (a) shall register the withdrawal with the department.

281.346(3)(b) (b) A person to whom par. (a) applies shall register on a form prescribed by the department and provide all of the following information:

281.346(3)(b)1. 1. The name and address of the registrant and the date of registration.

281.346(3)(b)2. 2. The locations and sources of the withdrawal or diversion.

281.346(3)(b)3. 3. The daily capacity of the withdrawal or diversion and the daily capacity to withdraw or divert from each source.

281.346(3)(b)4. 4. An estimate of the volume of the withdrawal or diversion in terms of gallons per day average in any 30-day period.