Wisconsin Code § 281.346

Water conservation, reporting, and supply regulation; after the compact takes effect
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(1) DEFINITIONS. In this section:
(d) “Community within a straddling county” means any city,
village, or town that is not a straddling community and that is located outside the Great Lakes basin but wholly within a county
that lies partly within the Great Lakes basin.
(dm) “Compact” means the Great Lakes — St. Lawrence
River Basin Water Resources Compact under s. 281.343.
(dr) “Compact’s effective date” means the effective date of the
compact under s. 281.343 (9) (d).
(e) “Consumptive use” means a use of water that results in the
loss of or failure to return some or all of the water to the basin
from which the water is withdrawn due to evaporation, incorporation into products, or other processes.
(g) “Cumulative impacts” means the impacts on the Great
Lakes basin ecosystem that result from incremental effects of all
aspects of a withdrawal, diversion, or consumptive use in addition
to other past, present, and reasonably foreseeable future withdrawals, diversions, and consumptive uses regardless of who undertakes the other withdrawals, diversions, and consumptive
uses, including individually minor but collectively significant
withdrawals, diversions, and consumptive uses taking place over
a period of time.
(h) “Diversion” means a transfer of water from the Great
Lakes basin into a watershed outside the Great Lakes basin, or
from the watershed of one of the Great Lakes into that of another,
by any means of transfer, including a pipeline, canal, tunnel,
aqueduct, channel, modification of the direction of a water
course, tanker ship, tanker truck, or rail tanker except that “diversion” does not include any of the following:
1. The transfer of a product produced in the Great Lakes
basin or in the watershed of one of the Great Lakes, using waters
of the Great Lakes basin, out of the Great Lakes basin or out of
that watershed.
2. The transmission of water within a line that extends outside the Great Lakes basin as it conveys water from one point to
another within the Great Lakes basin if no water is used outside
the Great Lakes basin.
3. The transfer of bottled water from the Great Lakes basin in
containers of 5.7 gallons or less.
(hm) “Divert” means to transfer water from the Great Lakes
basin into a watershed outside the Great Lakes basin, or from the
watershed of one of the Great Lakes into that of another, by any
means of transfer, including a pipeline, canal, tunnel, aqueduct,
channel, modification of the direction of a water course, tanker
ship, tanker truck, or rail tanker except that “divert” does not include any of the following:
1. To transfer a product produced in the Great Lakes basin or
in the watershed of one of the Great Lakes, using waters of the
Great Lakes basin, out of the Great Lakes basin or out of that
watershed.
2. To transmit water within a line that extends outside the
Great Lakes basin as it conveys water from one point to another
within the Great Lakes basin if no water is used outside the Great
Lakes basin.
3. To transfer bottled water from the Great Lakes basin in
containers of 5.7 gallons or less.
(i) “Environmentally sound and economically feasible water
conservation measures” means those measures, methods, or technologies for efficient water use and for reducing water loss and
waste or for reducing the amount of a withdrawal, consumptive
use, or diversion that are, taking into account environmental impact, the age and nature of equipment and facilities involved, the
processes employed, the energy impacts, and other appropriate
factors, all of the following:
1. Environmentally sound.
2. Reflective of best practices applicable to the water use
sector.
3. Technically feasible and available.
4. Economically feasible and cost-effective based on an analysis that considers direct and avoided economic and environmental costs.
(j) “Facility” means an operating plant or establishment providing electricity to the public or carrying on any manufacturing
activity, trade, or business on one site, including similar plants or

establishments under common ownership or control located on
contiguous properties.
(je) “Great Lakes basin” means the watershed of the Great
Lakes and the St. Lawrence River upstream from Trois-Rivieres,
Quebec, within the jurisdiction of the parties.
(ji) “Great Lakes basin ecosystem” means the interacting
components of air, land, water, and living organisms, including
humans, within the Great Lakes basin.
(jj) “Great Lakes council” means the Great Lakes — St.
Lawrence River Basin Water Resources Council, created under s.
281.343 (2) (a).
(jm) “Intrabasin transfer” means the transfer of water from
the watershed of one of the Great Lakes into the watershed of another of the Great Lakes.
(n) “Party” means a state that is a party to the compact.
(nm) Notwithstanding s. 281.01 (9), “person” means an individual or other entity, including a government or a nongovernmental organization, including any scientific, professional, business, nonprofit, or public interest organization or association that
is neither affiliated with nor under the direction of a government.
(o) “Product” means something produced by human or mechanical effort or through agricultural processes and used in manufacturing, commercial, or other processes or intended for intermediate or ultimate consumers, subject to all of the following:
1. Water used as part of the packaging of a product is part of
the product.
2. Other than water used as part of the packaging of a product, water that is used primarily to transport materials in or out of
the Great Lakes basin is not a product or part of a product.
3. Except as provided in subd. 1., water that is transferred as
part of a public or private supply is not a product or part of a
product.
4. Water in its natural state, such as in lakes, rivers, reservoirs, aquifers, or water basins, is not a product.
(pm) “Public water supply” means water distributed to the
public through a physically connected system of treatment, storage, and distribution facilities that serve a group of largely residential customers and that may also serve industrial, commercial,
and other institutional customers.
(ps) “Reasonable water supply alternative” means a water
supply alternative that is similar in cost to, and as environmentally sustainable and protective of public health as, the proposed
new or increased diversion and that does not have greater adverse
environmental impacts than the proposed new or increased
diversion.
(q) “Regional body” means the body consisting of the governors of the parties and the premiers of Ontario and Quebec,
Canada, or their designees as established by the Great Lakes —
St. Lawrence River Basin Sustainable Water Resources
Agreement.
(qd) “Regional declaration of finding” means a declaration of
finding issued by the regional body under s. 281.343 (4h) (e).
(qm) “Regional review” means review by the regional body as
described in s. 281.343 (4h).
(r) “Source watershed” means the watershed from which a
withdrawal originates. If water is withdrawn directly from a
Great Lake or from the St. Lawrence River, then the source watershed is the watershed of that Great Lake or the watershed of the
St. Lawrence River, respectively. If water is withdrawn from the
watershed of a stream that is a direct tributary to a Great Lake or
a direct tributary to the St. Lawrence River, then the source watershed is the watershed of that Great Lake or the watershed of the
St. Lawrence River, respectively.
(t) “Straddling community” means any city, village, or town
that, based on its boundary existing as of the compact’s effective
date, is partly within the Great Lakes basin or partly within the
watersheds of 2 of the Great Lakes and that is wholly within any
county that lies partly or completely within the Great Lakes
basin.
(tm) “Straddling county” means a county that lies partly
within the Great Lakes basin.
(u) “Technical review” means a thorough analysis and evaluation conducted to determine whether a proposal that is subject to
regional review under this section meets the criteria for approval
under sub. (4), (5), or (6).
(w) “Water dependent natural resources” means the interacting components of land, water, and living organisms affected by
the waters of the Great Lakes basin.
(wm) “Water loss” means the amount of water that is withheld
from or not returned to the basin from which it is withdrawn as a
result of a diversion or consumptive use or both.
(wp) “Water supply system,” when not preceded by “public,”
means one of the following:
1. Except as provided in subd. 2., the equipment handling
water from the point of intake of the water to the first point at
which the water is used.
2. For a system for providing a public water supply, the
equipment from the point of intake of the water to the first point
at which the water is distributed.
(wr) “Water utility” means a public utility, as defined in s.
196.01 (5), that furnishes water.
(x) “Waters of the Great Lakes basin” means the Great Lakes
and all streams, rivers, lakes, connecting channels, and other bodies of water, including tributary groundwater, within the Great
Lakes basin.
(y) “Withdraw” means to take water from surface water or
groundwater.
(z) “Withdrawal” means the taking of water from surface water or groundwater, including the taking of surface water or
groundwater for the purpose of bottling the water.
(zm) “Without adequate supplies of potable water” means
lacking a water supply that is economically and environmentally
sustainable in the long term to meet reasonable demands for a
water supply in the quantity and quality that complies with applicable drinking water standards, is protective of public health, is
available at a reasonable cost, and does not have adverse environmental impacts greater than those likely to result from the proposed new or increased diversion.
(2) DETERMINATIONS CONCERNING APPLICABILITY OF REQUIREMENTS. (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.
(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.
(bm) Subsequent withdrawals for aquacultural purposes. If a
fish farm withdraws water and places it in an aquacultural pond
that is registered with the department of agriculture, trade and
consumer protection, any subsequent use of that water from that
pond is not a withdrawal for the purposes of this section, if the
subsequent use is not, and does not result in, a diversion or an intrabasin transfer.
(c) Water loss. The department shall promulgate rules for determining the amount of water loss from consumptive uses.
(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.
(e) Baseline. 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).
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).
1r. The baseline for a withdrawal not covered by subd. 1g. or
1m. is zero.
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.
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.
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.
(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.
(f) Hydrologic units. The Lake Michigan and Lake Huron
watershed shall be considered to be a single hydrologic unit and
watershed.
(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.
(3) STATEWIDE REGISTRATION AND REPORTING. (a) 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.
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 30day period and who has not registered the withdrawal under s.
281.344 (3) (a) shall register the withdrawal with the department.
(b) A person to whom par. (a) applies shall register on a form
prescribed by the department and provide all of the following
information:
1. The name and address of the registrant and the date of
registration.
2. The locations and sources of the withdrawal or diversion.
3. The daily capacity of the withdrawal or diversion and the
daily capacity to withdraw or divert from each source.
4. An estimate of the volume of the withdrawal or diversion
in terms of gallons per day average in any 30-day period.
5. The uses made of the water.
6. The places at which the water is used.
7. The places at which any of the water is discharged.
8. Whether the water use is continuous or intermittent.
9. Whether the person holds a permit under s. 283.31.
10. Other information required by the department by rule.
(c) The department shall maintain a registry containing the
information provided under par. (b) and s. 281.344 (3) (b).
(cm) The department may consider domestic security concerns when determining whether information regarding locations
of withdrawals and diversions contained in the registry under par.
(c) may be released to the public.
(e) 1. Each person who makes a withdrawal from the waters
of the state that averages 100,000 gallons per day or more in any
30-day period or diverts any amount and who has registered the
withdrawal or diversion under par. (a) or s. 281.344 (3) (a) shall
annually report to the department the monthly volumes of withdrawal, whether the person withdraws at least 1,000,000 gallons
per day for 30 consecutive days, and, if applicable, the volumes of
diversion and, subject to par. (em), water loss from consumptive
use.
2. In addition to the information required under subd. 1., the
department may, by rule, create different reporting frequencies or
require additional information from a person who registers a
withdrawal, or diversion under par. (a) or s. 281.344 (3) (a) based
upon the type or category of water use.
(em) If a person to whom par. (e) 1. applies provides any of
the water that the person withdraws to a public water supply system, the person who operates the public water supply system,
rather than the person who withdraws the water, shall annually
report to the department the volume of water loss from the consumptive use of the water provided to the public water supply
system.
(f) The department may require additional information under
par. (b) 10. or (e) 2. only if the information is related to the purposes of the compact.
(4) DIVERSIONS. (a) Prohibition. Beginning on the compact’s effective date, no person may begin a diversion, except as
authorized under par. (c), (d), or (e) or an approval issued under s.
281.344 (4), and no person may increase the amount of a diversion over the diversion amount specified in an approval under this
subsection or over the interbasin transfer amount specified in an
approval issued under s. 281.344 (3m) or (4), except as authorized under par. (c), (d), or (e).
(b) Application. 1. A person who proposes to begin a diversion or to increase the amount of a diversion under par. (c), (d), or
(e) shall apply to the department for approval.
2. A person may apply under subd. 1. for approval of a new
or increased diversion under par. (c) or (e) only if the person operates a public water supply system that receives or would receive
water from the new or increased diversion.
3. Operators of 2 or more public water supply systems may
submit a joint application under subd. 1. for a new or increased
diversion under par. (c) or (e).
4. A person who applies under subd. 1. shall provide information about the potential impacts of the diversion on the waters
of the Great Lakes basin and water dependent natural resources
and any other information required by the department by rule.
4m. If a person who applies under subd. 1. will not directly
withdraw the water proposed to be diverted, the person shall

identify any entities that may withdraw the water and provide evidence of support from each of those entities in the form of a letter or resolution.
4p. If the person who applies under subd. 1. will not directly
return the water to the Great Lakes basin, the person shall identify any entities that may return the water and provide evidence of
support from each of those entities in the form of a letter or
resolution.
4s. If the proposal for which a person applies under subd. 1.
is subject to the exception standard under par. (f), the person shall
provide documentation of how the physical, chemical, and biological integrity of the receiving water under par. (f) 3. will be
protected and sustained as required under ss. 30.12, 281.15, and
283.31, considering the state of the receiving water before the
proposal is implemented and considering potential adverse impacts due to changes in temperature and nutrient loadings. If the
receiving water is a surface water body that is tributary to one of
the Great Lakes, the person shall include a description of the flow
of the receiving water before the proposal is implemented, considering both low and high flow conditions.
5. If the proposal for which a person applies under subd. 1. is
subject to the exception standard under par. (f), the person shall
provide an assessment of the individual impacts of the proposal
for the purposes of par. (f) 5. The person may also include a cumulative impact assessment.
(bg) Determinations. 1. The department shall determine
whether a proposal under par. (b) is subject to par. (c) or (e) as
follows:
a. If the proposal is to provide a public water supply within a
single city, village, or town, the proposal is subject to par. (c) or
(e) based on the boundaries of that city, village, or town.
b. If the proposal is to provide a public water supply within
more than one city, village, or town, any portion of the proposal
that provides a public water supply within a straddling community is subject to par. (c) and any portion of the proposal that provides a public water supply within a community described in par.
(e) 1. (intro.) is subject to par. (e).
2. For the purposes of applying the requirements in pars. (c),
(e), and (f) to a proposal under par. (b), the department shall use,
as appropriate, the current or planned service area of the public
water supply system receiving water under the proposal. The
planned service area is the service area of the system at the end of
any planning period authorized by the department in the approved water supply service area plan under s. 281.348 that covers the public water supply system.
(c) Straddling communities. The department may approve a
proposal under par. (b) to begin a diversion, or to increase the
amount of a diversion, to an area within a straddling community
but outside the Great Lakes basin or outside the source watershed
if the water diverted will be used solely for public water supply
purposes in the straddling community and all of the following
apply:
1. An amount of water equal to the amount of water withdrawn from the Great Lakes basin, less an allowance for consumptive use, will be returned to the source watershed.
2. No surface water or groundwater from outside the source
watershed will be returned to the source watershed unless all of
the following apply:
a. The returned water will be from a water supply or wastewater treatment system that combines water from inside and outside the Great Lakes basin.
b. The returned water will be treated to meet applicable permit requirements under s. 283.31 and to prevent the introduction
of invasive species into the Great Lakes basin.
c. The proposal maximizes the amount of water withdrawn
from the Great Lakes basin that will be returned to the source watershed and minimizes the amount of water from outside the
Great Lakes basin that will be returned to the source watershed.
2m. The proposal is consistent with an approved water supply service area plan under s. 281.348 that covers the public water
supply system unless the proposal is to provide water to a straddling community that includes an electronics and information
technology manufacturing zone designated under s. 238.396
(1m).
3. If the proposal would result from a new withdrawal or an
increase in a withdrawal that would average 100,000 gallons or
more per day in any 90-day period, the proposal meets the exception standard under par. (f).
4. If the proposal would result in a new water loss or an increase in a water loss from consumptive use that would average
5,000,000 gallons or more per day in any 90-day period, all of the
following apply:
a. The department conducts a technical review.
b. The department notifies the regional body as required in s.
281.343 (4h) (b) 1.
c. The proposal undergoes regional review.
d. The department considers the regional declaration of finding in determining whether to approve the proposal.
(d) Intrabasin transfer. 1. The department may approve a
proposal under par. (b) for a new intrabasin transfer or an increase
in an intrabasin transfer to which par. (c) does not apply that
would average less than 100,000 gallons per day in every 90-day
period, if the proposal meets the applicable requirements under s.
30.18, 281.34, or 281.41 or, if those sections do not apply, any requirements specified by the department by rule and, if the water
will be used for public water supply purposes, the proposal is
consistent with an approved water supply service area plan under
s. 281.348 that covers the public water supply system.
2. The department may approve a proposal under par. (b) for
a new intrabasin transfer or an increase in an intrabasin transfer to
which par. (c) does not apply that would average more than
100,000 gallons per day in any 90-day period with a new water
loss or an increase in water loss that would average less than
5,000,000 gallons per day in every 90-day period, if all of the following apply:
a. The proposal meets the exception standard under par. (f),
except that the water may be returned to a watershed within the
Great Lakes basin other than the source watershed and par. (f)
3m. does not apply.
b. The applicant demonstrates that there is no feasible, costeffective, and environmentally sound water supply alternative
within the watershed to which the water will be transferred, including conservation of existing water supplies as determined under par. (g).
c. If the water will be used for public water supply purposes,
the proposal is consistent with an approved water supply service
area plan under s. 281.348 that covers the public water supply
system.
d. The department provides notice of the proposal to the
other parties.
3. The department may approve a proposal under par. (b) for
a new intrabasin transfer or an increase in an intrabasin transfer to
which par. (c) does not apply with a new water loss or an increase
in water loss that would average 5,000,000 gallons per day or
more in any 90-day period, if all of the following apply:
a. The proposal meets the exception standard under par. (f).
b. The applicant demonstrates that there is no feasible, costeffective, and environmentally sound water supply alternative
within the watershed to which the water will be transferred, in-

cluding conservation of existing water supplies as determined under par. (g).
c. If the water will be used for public water supply purposes,
the proposal is consistent with an approved water supply service
area plan under s. 281.348 that covers the public water supply
system.
d. The department conducts a technical review.
e. The department notifies the regional body as required in s.
281.343 (4h) (b) 1.
f. The proposal undergoes regional review.
g. The department considers the regional declaration of finding in determining whether to approve the proposal.
h. The proposal is approved by the Great Lakes council.
(e) Straddling counties. 1. The department may approve a
proposal under par. (b) for a new diversion or an increase in a diversion if the water diverted will be used solely for public water
supply purposes in a community within a straddling county or, if
a community is partly within a straddling county and partly
within a county that lies entirely outside the Great Lakes basin,
the water diverted will be used solely for public water supply purposes in the portion of the community that is within the straddling county and all of the following apply:
a. The community is without adequate supplies of potable
water.
b. The proposal meets the exception standard under par. (f).
c. The proposal maximizes the amount of water withdrawn
from the Great Lakes basin that will be returned to the source watershed and minimizes the amount of water from outside the
Great Lakes basin that will be returned to the source watershed.
d. There is no reasonable water supply alternative within the
watershed in which the community is located, including conservation of existing water supplies as determined under par. (g).
e. The proposal will not endanger the integrity of the Great
Lakes basin ecosystem based upon a determination that the proposal will have no significant adverse impact on the Great Lakes
basin ecosystem.
em. The proposal is consistent with an approved water supply service area plan under s. 281.348 that covers the public water
supply system.
f. The department conducts a technical review.
g. The department notifies the regional body as required in s.
281.343 (4h) (b) 1.
h. The proposal undergoes regional review.
i. The department considers the regional declaration of finding in determining whether to approve the proposal.
j. The proposal is approved by the Great Lakes council.
2. In determining whether to approve a proposal under this
paragraph, the department shall give substantive consideration to
whether the applicant provides sufficient scientifically based evidence that the existing water supply is derived from groundwater
that is hydrologically interconnected to waters of the Great Lakes
basin. The department may not use a lack of hydrological connection to the waters of the Great Lakes basin as a reason to disapprove a proposal.
(f) Exception standard. A proposal meets the exception standard if all of the following apply:
1. The need for the proposed diversion cannot reasonably be
avoided through the efficient use and conservation of existing water supplies as determined under par. (g).
2. The diversion is limited to quantities that are reasonable
for the purposes for which the diversion is proposed.
3. An amount of water equal to the amount of water withdrawn from the Great Lakes basin will be returned to the source
watershed, less an allowance for consumptive use.
3m. The place at which the water is returned to the source
watershed is as close as practicable to the place at which the water
is withdrawn, unless the applicant demonstrates that returning the
water at that place is one of the following:
a. Not economically feasible.
b. Not environmentally sound.
c. Not in the interest of public health.
4. No water from outside the Great Lakes basin will be returned to the source watershed unless all of the following apply:
a. The returned water is from a water supply or wastewater
treatment system that combines water from inside and outside the
Great Lakes basin.
b. The returned water will be treated to meet applicable permit requirements under s. 283.31 and to prevent the introduction
of invasive species into the Great Lakes basin and the department
has approved the permit under s. 283.31.
c. If the water is returned through a structure on the bed of a
navigable water, the structure is designed and will be operated to
meet the applicable permit requirements under s. 30.12 and the
department has approved the permit under s. 30.12.
4m. If water will be returned to the source watershed through
a stream tributary to one of the Great Lakes, the physical, chemical, and biological integrity of the receiving water under subd. 3.
will be protected and sustained as required under ss. 30.12,
281.15, and 283.31, considering the state of the receiving water
before the proposal is implemented and considering both low and
high flow conditions and potential adverse impacts due to
changes in temperature and nutrient loadings.
5. The diversion will result in no significant adverse individual impacts or cumulative impacts to the quantity or quality of the
waters of the Great Lakes basin or to water dependent natural resources, including cumulative impacts that might result due to
any precedent-setting aspects of the proposed diversion, based
upon a determination that the proposed diversion will not have
any significant adverse impacts on the sustainable management
of the waters of the Great Lakes basin.
6. The applicant commits to implementing the applicable
water conservation measures under sub. (8) (d) that are environmentally sound and economically feasible for the applicant.
7. The diversion will be in compliance with all applicable local, state, and federal laws and interstate and international agreements, including the Boundary Waters Treaty of 1909.
(g) Conservation and efficient use of existing water supplies.
The department shall promulgate rules specifying the requirements for an applicant for a new or increased diversion subject to
par. (f) to demonstrate the efficient use and conservation of existing water supplies for the purposes of pars. (d) 2. b. and 3. b., (e)
1. d., and (f) 1., including requiring the applicant to document the
water conservation planning and analysis used to identify the water conservation and efficiency measures that the applicant determined were feasible.
(i) Diversion amount. In an approval issued under this subsection or a modification granted under this subsection to increase the amount of a diversion, the department shall specify a
diversion amount equal to the quantity of water that is reasonable
for the purposes for which the diversion is proposed.
(4e) DETERMINING BASELINES FOR PREEXISTING WITHDRAWALS. (a) Before issuing automatic notice of coverage under
a general permit under sub. (4s) or an automatic individual permit
under sub. (5) (c) for a withdrawal from the Great Lakes basin for
which the department is required to issue automatic notice of

coverage or an automatic individual permit, the department shall
determine a baseline for the withdrawal under this subsection.
(b) 1. Except as provided in subds. 2. and 3e. and par. (f), the
department shall estimate the baseline for a withdrawal based on
the maximum hydraulic capacity of the most restrictive component in the water supply system used for the withdrawal as of December 8, 2008, based on information available to the
department.
2. Except as provided in subd. 3e., if the department has issued an approval under s. 30.12, 30.18, 281.34, or 281.41, or s.
281.17, 2001 stats., that is required for a withdrawal and the approval contains a limit on the amount of water that may be withdrawn, the department shall provide an estimate of the baseline
equal to the limit in the approval as of December 8, 2008.
3e. If water is withdrawn through more than one water supply system to serve a facility, the department shall determine the
amount under subd. 1. for each of the water supply systems to
which subd. 2. does not apply and shall determine the amount under subd. 2. for each of the water supply systems to which subd. 2.
applies and shall provide an estimate of the baseline that is equal
to the sum of the amounts determined for each of the water supply systems.
(c) The department shall provide the estimate under par. (b)
for a withdrawal to the person making the withdrawal.
(d) After receiving an estimate under par. (c), a person making
a withdrawal may provide the department with information relating to any of the following:
1. The components of the water supply system used for the
withdrawal as of December 8, 2008.
2. Seasonal variations in the amount of water supplied by the
water supply system.
3. Plans for expanding the capacity of the water supply system submitted to the department before December 8, 2008.
4. Amounts withdrawn during the 5 years before the year in
which the person submits the information.
5. Successful water conservation efforts by persons using the
water that is withdrawn.
6. Water loss from consumptive uses of similar types of users
compared to the water loss from consumptive use of persons using the water that is withdrawn.
7. Other relevant information.
(e) Except as provided in par. (f), the department shall determine the baseline for a withdrawal based on the estimate under
par. (b) and the department’s evaluation of any information provided under par. (d). The department may not consider information provided by any other person.
(f) For a public water supply system that, on June 11, 2008,
has approval under s. 281.41 to provide water from the Great
Lakes basin for public water supply purposes outside of the Great
Lakes basin and approval under s. 283.31 to return the associated
wastewater to the Great Lakes basin, the department shall determine the baseline to be the amount of water necessary to provide
water for public water supply purposes in the service territory
specified in the sewer service area provisions of the areawide water quality management plan under s. 283.83 approved by the department before December 31, 2007, based on the population and
related service projections in those provisions.
(g) The department’s determination of a baseline under par.
(e) or (f) is not subject to administrative review under ch. 227 except at the request of the person making the withdrawal.
(h) If 2 or more public water supply systems merge after the
department determines their baselines under par. (e) and before
the department issues the initial individual permits under sub. (5)
(c) for the systems, the baseline for the new system is the sum of
the amounts determined under par. (e) for the individual systems.
(4g) DETERMINING WITHDRAWAL AMOUNTS FOR PREEXISTING WITHDRAWALS. (a) Before issuing automatic notice of coverage under a general permit under sub. (4s) or an automatic individual permit under sub. (5) (c) for a withdrawal from the Great
Lakes basin for which the department is required to issue automatic notice of coverage or an automatic individual permit, the
department shall determine a withdrawal amount for the withdrawal under this subsection.
(b) Except as provided in par. (c), the withdrawal amount for
a withdrawal under this subsection is the same as the baseline determined under sub. (4e).
(c) 1. Except as provided in subd. 3., if a person making a
withdrawal has increased the amount of the withdrawal over the
baseline before the department issues an automatic notice of coverage under a general permit under sub. (4s) or an automatic individual permit under sub. (5) (c), the department shall specify a
withdrawal amount that is, except as provided in subd. 2., equal to
the smallest of the following amounts:
a. The maximum hydraulic capacity of the most restrictive
component of the water supply system used for the withdrawal for
which the person has approval under s. 30.12, 30.18, 281.34, or
281.41 or s. 281.17, 2001 stats., or, if an approval under one of
those provisions is not required for the most restrictive component of the water supply system, the maximum hydraulic capacity
of the most restrictive component in the water supply system used
for the withdrawal.
b. If an approval under s. 30.12, 30.18, 281.34, or 281.41 or
s. 281.17, 2001 stats., specifies a maximum amount of water that
may be withdrawn, that amount.
2. If water is withdrawn through more than one water supply
system to serve a facility, the department shall determine the
smallest amount under subd. 1. a. or b. for each of the water supply systems and shall specify a withdrawal amount that is equal to
the sum of the amounts determined for each of the water supply
systems.
3. For a withdrawal for the purpose of providing water to a
public water supply system that is covered by an approved water
supply service area plan under s. 281.348, the department shall
specify a withdrawal amount that is equal to the withdrawal
amount in the water supply service area plan.
(4m) WATER USE PERMITS REQUIRED IN THE GREAT LAKES
BASIN. Beginning on December 8, 2011, a person may not make
a withdrawal from the Great Lakes basin that averages 100,000
gallons per day or more in any 30-day period unless the withdrawal is covered under a general permit issued under sub. (4s),
an individual permit issued under sub. (5), or an interim approval
under s. 281.344 (5m), except as provided in sub. (4s) (bm).
(4s) GENERAL WATER USE PERMITS FOR G REAT L AKES
BASIN. (a) Department to issue. The department shall issue one
or more general permits to cover withdrawals from the Great
Lakes basin that average 100,000 gallons per day or more in any
30-day period but that do not equal at least 1,000,000 gallons per
day for any 30 consecutive days. The department shall include all
of the following in a general permit:
1. Reference to the database under par. (i).
2. Requirements for estimating the amount withdrawn, monitoring the withdrawal, if necessary, and reporting the results of
the estimating and monitoring, as provided in rules promulgated
by the department.
3. Requirements for water conservation, as provided in rules
promulgated by the department under sub. (8) (d).

(am) Term of general permit. The term of a general permit issued under par. (a) is 25 years.
(b) General requirement. Beginning on December 8, 2011, a
person who does not hold an individual permit under sub. (5) may
not make a withdrawal that averages 100,000 gallons per day or
more in any 30-day period, but that does not equal at least
1,000,000 gallons per day for any 30 consecutive days, unless the
withdrawal is covered under a general permit issued under this
subsection, except as provided in par. (bm). A person to whom
the department has issued a notice of coverage under a general
permit shall comply with the general permit.
(bm) Waiver. The department may waive the requirement to
obtain coverage under a general permit for a person making a
withdrawal that is covered by a permit under s. 30.18 (2) (a).
(c) Automatic notice of coverage for preexisting withdrawals.
The department shall automatically issue a notice of coverage under a general permit to a person who makes a withdrawal that is
covered by an interim approval under s. 281.344 (5m) and that averages 100,000 gallons per day or more in any 30-day period but
does not equal at least 1,000,000 gallons per day for any 30 consecutive days, or who makes a withdrawal that is not covered by
an interim approval and that before December 8, 2008, averaged
100,000 gallons per day or more in any 30-day period but that
does not equal at least 1,000,000 gallons per day for any 30 consecutive days. If necessary, the department may request additional information before issuing a notice under this paragraph.
The department shall issue a notice under this paragraph no later
than December 8, 2011. In the notice provided under this paragraph for a withdrawal, the department shall specify a baseline
equal to the baseline determined under sub. (4e) for the withdrawal and a withdrawal amount equal to the withdrawal amount
determined under sub. (4g) for the withdrawal.
(d) Coverage under general permit for withdrawals not entitled to automatic notice of coverage. 1. A person who proposes
to begin a withdrawal from the Great Lakes basin after December
7, 2011, that will average 100,000 gallons per day or more in any
30-day period, or to increase an existing withdrawal so that it will
average 100,000 gallons per day or more in any 30-day period,
but who does not propose to withdraw at least 1,000,000 gallons
per day for any 30 consecutive days, shall apply to the department
for coverage under a general permit, unless the person applies for
an individual permit under sub. (5). In the application, the person
shall provide the information required by the department by rule.
1m. A person who makes a withdrawal from the Great Lakes
basin that, before December 8, 2011, averages at least 100,000
gallons per day in any 30-day period, but does not equal
1,000,000 gallons per day for any 30 consecutive days and who is
not entitled to automatic issuance of notice of coverage under par.
(c) shall apply to the department for coverage under a general permit, unless the person applies for an individual permit under sub.
(5). In the application, the person shall provide the information
required by the department by rule.
2. After receiving an application under subd. 1., the department shall, within the time limit established by the department by
rule, determine whether the withdrawal qualifies for coverage under a general permit or notify the applicant of any additional information needed to determine whether the withdrawal qualifies
for coverage under a general permit.
3. Except as provided in subd. 3m., if the department determines that a withdrawal qualifies for coverage under a general
permit and the department has issued any approvals that are required for the withdrawal under s. 30.12, 30.18, 281.34, or
281.41 or s. 281.17, 2001 stats., the department shall issue a notice of coverage. In the notice, the department shall specify a
withdrawal amount that is, except as provided in subd. 3e., equal
to the smallest of the following amounts:
a. The maximum hydraulic capacity of the most restrictive
component of the water supply system used for the withdrawal for
which the person has approval under s. 30.12, 30.18, 281.34, or
281.41 or s. 281.17, 2001 stats., or, if an approval under one of
those provisions is not required for the most restrictive component of the water supply system, the maximum hydraulic capacity
of the most restrictive component that the person proposes to use
in the water supply system.
b. If an approval under s. 30.12, 30.18, 281.34, or 281.41 or
s. 281.17, 2001 stats., specifies a maximum amount of water that
may be withdrawn, that amount.
3e. If water is withdrawn through more than one water supply system to serve a facility, the department shall determine the
smallest amount under subd. 3. a. or b. for each of the water supply systems and shall specify a withdrawal amount that is equal to
the sum of the amounts determined for each of the water supply
systems.
3m. a. The department may not approve an application under subd. 1. or 1m. for a withdrawal for the purpose of providing
water to a public water supply system that serves a population of
more than 10,000 unless the withdrawal is covered by an approved water supply service area plan under s. 281.348.
b. The department may not approve an application under
subd. 1. or 1m. for a withdrawal for the purpose of providing water to a public water supply system that is covered by an approved
water supply service area plan under s. 281.348, unless the withdrawal is consistent with the water supply service area plan.
c. If the department approves an application under subd. 1. or
1m. for a withdrawal for the purpose of providing water to a public water supply system that is covered by an approved water supply service area plan under s. 281.348, the department shall issue
a notice of coverage. In the notice of coverage the department
shall specify a withdrawal amount that is equal to the withdrawal
amount in the water supply service area plan.
4. If the department determines that a withdrawal does not
qualify for coverage under a general permit, the department shall
notify the applicant in writing of the reason for that
determination.
(dm) Requiring individual permit. The department may require a person who is making or proposes to make a withdrawal
that averages 100,000 gallons per day or more in any 30-day period, but that does not equal at least 1,000,000 gallons per day for
any 30 consecutive days, to obtain an individual permit under
sub. (5) if the withdrawal is located in a groundwater protection
area, as defined in s. 281.34 (1) (am), or a groundwater management area designated under s. 281.34 (9).
(e) Increase in withdrawal amount. 1. If a person making a
withdrawal that is covered under a general permit issued under
this subsection or s. 281.344 (4s) proposes to increase the amount
of the withdrawal over the withdrawal amount specified in the
database under par. (i) for the withdrawal, but does not propose to
withdraw at least 1,000,000 gallons per day for any 30 consecutive days, the person shall apply to the department for a modification of the withdrawal amount.
3. Except as provided in subd. 3m., if the department has issued any approvals that are required for modifying the withdrawal under s. 30.12, 30.18, 281.34, or 281.41 or s. 281.17, 2001
stats., the department shall modify the withdrawal amount to an
amount that is, except as provided in subd. 3e., equal to the smallest of the following amounts:
a. The maximum hydraulic capacity of the most restrictive
component of the water supply system used for the withdrawal for
which the person has approval under s. 30.12, 30.18, 281.34, or

281.41 or s. 281.17, 2001 stats., or, if an approval under one of
those provisions is not required for the most restrictive component of the water supply system, the maximum hydraulic capacity
of the most restrictive component that the person proposes to use
in the water supply system.
b. If an approval under s. 30.12, 30.18, 281.34, or 281.41 or
s. 281.17, 2001 stats., specifies a maximum amount of water that
may be withdrawn, that amount.
3e. If water is withdrawn through more than one water supply system to serve a facility, the department shall determine the
smallest amount under subd. 3. a. or b. for each of the water supply systems and shall specify a withdrawal amount that is equal to
the sum of the amounts determined for each of the water supply
systems.
3m. a. The department may not approve an application under subd. 1. for a withdrawal for the purpose of providing water to
a public water supply system that serves a population of more
than 10,000 unless the withdrawal is covered by an approved water supply service area plan under s. 281.348.
b. The department may not approve an application under
subd. 1. for a withdrawal for the purpose of providing water to a
public water supply system that is covered by an approved water
supply service area plan under s. 281.348, unless the withdrawal
is consistent with the water supply service area plan.
c. If the department approves an application under subd. 1.
for a withdrawal for the purpose of providing water to a public
water supply system that is covered by an approved water supply
service area plan under s. 281.348, the department shall issue a
notice of coverage. In the notice of coverage the department shall
specify a withdrawal amount that is equal to the withdrawal
amount in the water supply service area plan.
(f) Term of coverage. Coverage under a general permit ends
on the date that the term of the general permit under par. (am)
ends.
(g) Redetermination. A person to whom the department has
issued a notice of coverage under a general permit issued under
this subsection or s. 281.344 (4s) shall apply to the department
for redetermination of coverage under a new general permit issued under this subsection at least 180 days before the end of the
term of the current general permit if the person intends to continue to withdraw from the Great Lakes basin an average of
100,000 gallons per day or more in any 30-day period but does
not intend to withdraw at least 1,000,000 gallons per day for any
30 consecutive days. If the person is in substantial compliance
with the current general permit and the withdrawal qualifies for
coverage under the new general permit, the department shall issue a notice of coverage under the new general permit.
(h) Suspension and revocation. After an opportunity for a
hearing, the department may suspend or revoke coverage under a
general permit issued under this subsection or s. 281.344 (4s) for
cause, including obtaining coverage under the permit by misrepresentation or failure to disclose material facts or substantially violating the terms of the permit.
(i) Database. The department shall maintain a database of
the withdrawal amounts for all withdrawals that are covered under general permits issued under this subsection. Until December 8, 2021, the department shall include in the database the
baselines for all withdrawals that are covered under general permits issued under this subsection.
(5) INDIVIDUAL WATER USE PERMITS FOR G REAT L AKES
BASIN. (a) Requirement. Beginning on December 8, 2011, a person may not make a withdrawal from the Great Lakes basin that
equals at least 1,000,000 gallons per day for any 30 consecutive
days unless the withdrawal is covered by an individual permit issued under this subsection. A person to whom the department
has issued an individual permit shall comply with the individual
permit.
(b) Content of individual permits. The department shall include all of the following in an individual permit:
1. A withdrawal amount as determined under par. (d) 3., 3e.,
or 3m., (g) 3., 3e., or 3m., or (j) 3., 3e., or 3m., or sub. (4g).
2. Provisions for estimating and, if necessary, monitoring
substantial increases in water loss resulting from increases in
withdrawal amounts during the term of a permit and reporting the
results of the estimating and monitoring, as provided in rules promulgated by the department.
3. Requirements for estimating the amount withdrawn, monitoring the withdrawal, if necessary, and reporting the results of
the estimating and monitoring, as provided in rules promulgated
by the department.
4. Requirements for water conservation, as provided in rules
promulgated by the department under sub. (8) (d).
5. Limits on the location and dates or seasons of the withdrawal and on the allowable uses of the water, as provided in rules
promulgated by the department.
5m. If a decision-making standard under sub. (5m) or (6) applies to the withdrawal, any limit on the amount of the withdrawal
necessary to ensure compliance with the decision-making
standard.
6. Conditions on any diversion approved under sub. (4) made
by the person making the withdrawal.
6m. If s. 281.35 (4) applies to the withdrawal, the matters under s. 281.35 (6) (a).
7. If the withdrawal is from a surface water body tributary to
one of the Great Lakes and would result in a water loss of more
than 95 percent of the amount of water withdrawn, conditions
that ensure that the withdrawal does not cause significant adverse
environmental impact.
(c) Automatic issuance of individual permits for preexisting
withdrawals. The department shall automatically issue an individual permit to a person who makes a withdrawal from the Great
Lakes basin that is covered by an interim approval under s.
281.344 (5m) and that equals at least 1,000,000 gallons per day
for any 30 consecutive days, or who makes a withdrawal that is
not covered by an interim approval, that equals at least 1,000,000
gallons per day for any 30 consecutive days, and that before December 8, 2008, averaged 100,000 gallons per day or more in any
30-day period. If necessary, the department may request additional information before issuing a permit under this paragraph.
The department shall issue a permit under this paragraph no later
than December 8, 2011. In the permit, the department shall specify a baseline equal to the baseline determined under sub. (4e) for
the withdrawal and a withdrawal amount equal to the withdrawal
amount determined under sub. (4g) for the withdrawal.
(cm) Initial individual permit for existing withdrawals not entitled to automatic notice of coverage. 1. A person who makes a
withdrawal from the Great Lakes basin that, before December 8,
2011, equals at least 1,000,000 gallons per day for any 30 consecutive days and who is not entitled to automatic issuance of an individual permit under par. (c) shall apply to the department for an
individual permit.
2. After receiving an application under subd. 1., the department shall, within the time limit established by the department by
rule, determine whether to approve the application or notify the
applicant of any additional information needed to determine
whether to approve the application.
3. Except as provided in subd. 5., if the department approves
an application under subd. 1. and the department has issued any
approvals that are required for the withdrawal under s. 30.12,

30.18, 281.34, or 281.41 or s. 281.17, 2001 stats., the department
shall issue an individual permit. In the permit, the department
shall specify a withdrawal amount that is, except as provided in
subd. 4., equal to the smallest of the following amounts:
a. The maximum hydraulic capacity of the most restrictive
component of the water supply system used for the withdrawal for
which the person has approval under s. 30.12, 30.18, 281.34, or
281.41 or s. 281.17, 2001 stats., or, if an approval under one of
those provisions is not required for the most restrictive component of the water supply system, the maximum hydraulic capacity
of the most restrictive component in the water supply system used
for the withdrawal.
b. If an approval under s. 30.12, 30.18, 281.34, or 281.41 or
s. 281.17, 2001 stats., specifies a maximum amount of water that
may be withdrawn, that amount.
4. If water is withdrawn through more than one water supply
system to serve a facility, the department shall determine the
smallest amount under subd. 3. a. or b. for each of the water supply systems and shall specify a withdrawal amount that is equal to
the sum of the amounts determined for each of the water supply
systems.
5. If the department approves an application under subd. 1.
for a withdrawal for the purpose of providing water to a public
water supply system that is covered by an approved water supply
service area plan under s. 281.348, the department shall specify a
withdrawal amount that is equal to the withdrawal amount in the
water supply service area plan.
6. If the department disapproves an application under subd.
1., the department shall notify the applicant in writing of the reason for the disapproval.
(d) Initial individual permit for withdrawal begun or increased after December 7, 2011. 1. A person who proposes to
begin a withdrawal from the Great Lakes basin after December 7,
2011, that will equal at least 1,000,000 gallons per day for any 30
consecutive days or to modify an existing withdrawal so that it
will equal at least 1,000,000 gallons per day for any 30 consecutive days shall apply to the department for an individual permit.
2. After receiving an application under subd. 1., the department shall, within the time limit established by the department by
rule, determine whether to approve the application or notify the
applicant of any additional information needed to determine
whether to approve the application.
3. Except as provided in subd. 3m., if the department approves an application under subd. 1. and the department has issued any approvals that are required for the withdrawal under s.
30.12, 30.18, 281.34, or 281.41 or s. 281.17, 2001 stats., the department shall issue an individual permit. In the permit, the department shall specify a withdrawal amount that is, except as provided in subd. 3e., equal to the smallest of the following amounts:
a. The maximum hydraulic capacity of the most restrictive
component of the water supply system used for the withdrawal for
which the person has approval under s. 30.12, 30.18, 281.34, or
281.41 or s. 281.17, 2001 stats., or, if an approval under one of
those provisions is not required for the most restrictive component of the water supply system, the maximum hydraulic capacity
of the most restrictive component that the person proposes to use
in the water supply system.
b. If an approval under s. 30.12, 30.18, 281.34, or 281.41 or
s. 281.17, 2001 stats., specifies a maximum amount of water that
may be withdrawn, that amount.
c. Any limit on the amount of the withdrawal necessary to
ensure compliance with a decision-making standard applicable
under par. (e) or (f).
3e. If water is withdrawn through more than one water supply system to serve a facility and subd. 3. c. does not apply, the
department shall determine the smallest amount under subd. 3. a.
or b. for each of the water supply systems and shall specify a
withdrawal amount that is equal to the sum of the amounts determined for each of the water supply systems.
3m. If the department approves an application under subd. 1.
for a withdrawal for the purpose of providing water to a public
water supply system that is covered by an approved water supply
service area plan under s. 281.348, the department shall issue an
individual permit. In the permit, the department shall specify a
withdrawal amount that is equal to the withdrawal amount in the
water supply service area plan.
4. If the department disapproves an application under subd.
1., the department shall notify the applicant in writing of the reason for the disapproval.
(dm) Consistency with water supply plans. 1. The department may not approve an application under par. (d) 1. for a withdrawal for the purpose of providing water to a public water supply
system that serves a population of more than 10,000 unless the
public water supply system is covered by an approved water supply service area plan under s. 281.348.
2. The department may not approve an application under par.
(d) 1. for the purpose of providing water to a public water supply
system that is covered by an approved water supply service area
plan under s. 281.348 unless the withdrawal is consistent with the
water supply service area plan.
(e) Standards for approval of certain unpermitted withdrawals. 1. Except as provided in pa

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