subdivision do not apply. If the pollution prevention alternatives implemented under
paragraph (i) of this subdivision do not eliminate the new or increased loading of the
LSB-BSIC to a Lake Superior basin-outstanding international resource water, then
the discharger shall evaluate and implement the best technology in process and
treatment (BTPT) that would eliminate or reduce the new or increased loading of the
LSB-BSIC. BTPT shall be the most advanced treatment techniques which have been
adequately demonstrated and which are reasonably available to the discharger.
However, innovative or experimental technology shall also be considered if proposed
by the discharger. Upon demonstration by the permittee, the requirement to
implement BTPT may be waived by the department for new or increased loadings of
LSB-BSICs that occur as trace contaminants in naturally occurring raw materials at
the facility. If the BTPT requirement is waived, then the requirements of paragraph
(ii) of this subdivision shall apply.
(5) If the department determines that the antidegradation demonstration
information from subrule (4) of this rule shows that lowering of water quality is
necessary to support important social and economic development in the area and that, if
applicable, BTPT will be implemented consistent with subrule (4)(b)(iii) of this rule,
then the department shall authorize the lowering of water quality through issuance of
the control document. In no event may this decision allow water quality to be lowered
below the minimum level required to fully support the designated uses. The
antidegradation demonstration shall be available to the public for review during any
public comment period on the control document.
(6) If high quality water bodies are designated outstanding state resource waters
(OSRW) by the department, then controls shall be applied on pollutant sources to the
OSRW or tributaries so that the water quality is not lowered in the OSRW. A short-
term, temporary, for example, weeks or months, lowering of water quality in the OSRW
may be permitted by the department on a case-by-case basis. The following water
bodies are designated as OSRWs:
(a) The following water bodies designated as wild rivers pursuant to the Michigan
scenic rivers act of 1991, 16 U.S.C. §1271 et seq:
(i) The Carp river (Mackinac county) - the 7.5-mile segment from Michigan state
highway 123, T42N, R5W, section 2, to 1/4 of a mile upstream from forest
development road 3119, T42N, R4W, section 4.
(ii) The Carp river (Mackinac county) - the 4.9-mile segment from 1/4 of a mile
downstream of forest development road 3119, T42N, R4W, section 3, to McDonald
rapids.
(iii) The east branch of the Ontonagon river (Houghton and Ontonagon
counties) - the 25.5-mile segment from the east branch of the Ontonagon river’s
confluence with an unnamed stream in T48N, R37W, section 30, to the Ottawa national
forest boundary, T50W, R38W, section 33.
(iv) The middle branch of the Ontonagon river (Ontonagon county) - the 17.4-
mile segment from Trout creek, T48N, R38W, section 20, to the northern boundary of
the Ottawa national forest, T50N, R39W, section 12.
(v) The Sturgeon river (Baraga and Houghton counties) - the 16.5-mile segment
from the Sturgeon river’s entry into the Ottawa national forest, T48N, R35W, section
12, to Prickett lake.
Page 64