Ambient Temperatures and Water Quality Criteria for Temperature for Specific Large Rivers
(All values are expressed as degrees Fahrenheit)
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1 Ta = ambient temperature
2 SL = sub-lethal criteria
3 A = acute criteria
4 Mississippi River = applies to any portion of Wisconsin’s Mississippi River reach
5 Rock River = applies to waters downstream of Lake Koshkonong
6 Upper Wisconsin River = applies to waters upstream of Petenwell Dam
7 Lower Wisconsin River = applies to waters downstream of Petenwell Dam to the confluence with the Mississippi River
8 Lower Fox River = applies to waters downstream of the Lake Winnebago outlet
NR 102.25(4)(4)Inland lakes and impoundments. The values listed in Table 4 shall be the applicable ambient temperatures, sub-lethal and acute water quality criteria for temperature for the protection of fish and aquatic life for inland lakes and impoundments unless other values are approved by the department pursuant to s. NR 102.26 or 102.27.
Table 4
Ambient Temperatures and Water Quality Criteria for Temperature for Inland Lakes and Impoundments
(All values are expressed as degrees Fahrenheit)
- See PDF for table PDF
1 Ta = ambient temperature
2 SL = sub-lethal criteria
3 A = acute criteria
4 Northern = applicable for those lakes and impoundments north of State Highway 10
5 Southern = applicable for those lakes and impoundments south of State Highway 10
NR 102.25(5)(5)Great lakes waters. The values listed in Table 5 shall be the applicable ambient temperatures, sub-lethal and acute water quality criteria for the protection of fish and aquatic life for Great Lakes waters identified in s. NR 102.22 (5) unless other values are approved by the department pursuant to s. NR 102.26 or 102.27.
Table 5
Ambient Temperatures and Water Quality Criteria for Temperature for Great Lakes Waters of Wisconsin
(All values are expressed as degrees Fahrenheit)
- See PDF for table PDF
1 Ta = ambient temperature
2 SL = sub-lethal criteria
3 A = acute criteria