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MAINt KliVISIO SrATUTlCS ANNOTATED 

 TlTLIi 38 



§ 363. Sluiiilaids of classificaliun of fresh waters 



lliu bourd shall have 4 standards fur the classil'icatiun ul fresh surface waters. 



1972. c, 618. 



Qass A shall Ik the highest classincalion and shall be of sueh quality that it can be used for 

 recreational purposes, including bathing, and for public water supplies after disinfection llie 

 dissolved oxygen content of such waters shall not be less than 75% saturation or as naturally 

 occurs, and contain not more than 2(1 fecal coliforin bacteria per 100 milliliters. 



1977. c. 373. § I. 



Ilicse waters shall be free from sludge deposits, solid refuse and floating solids such as oils, 

 grease or scum. Ilierc shall be no disposal of any matter or substance in these waters which 

 would impart color, turbidity, taste or odor olehr than that which naturally occurs in said 

 waters, nor shall such matter or substances alter the temperature or hydrogen-ion concentration 

 of these waters or contain chemical constituents which would be harmful or offensive to 

 humans or which would be harmful to animal or acquatic life. No radioactive nutter or 

 substance shall be permitted in these waters other than that occurring from natural phenomena. 



I here shall be no discharge of sewage or other wastes into water of this classiHcation and no 

 deposits of such material on the banks of such waters in such a manner that transfer of the 

 material into the waters is likely, except that existing licensed discharges inio water of tliis 

 classification will be allowed to continue until practical alternatives exist, but no new discharges 

 will be permitted alter the effective date of this section. 



1971. c. 461, §2; 1977, c 373. § 2. 



Qass B, the 2nd highest classificalion, shall be divided into 2 designated groups as B-l and 

 B-2. 



B-l. Waters of this class shall be considered the higher quality of the Class ti group and 

 shall be acceptable for recreational purposes, including water contact recreation, for use as 

 potable water supply after adequate treatment and for a fish and wildlife habitat Tlie dissolved 

 oxygen of such waters shall be not less than 75% of saturation, and not less than 5 parts per 

 milhon at any time. 11ie fecal coliforin bacteria shall not exceed 61) per UK) milliliters. 



1977. c. 373. §3. 



These waters shall be free from sludge deposits, solid refuse and lloating solids such as 

 oils, grease or scum. There shall be no disposal of any matter or substance in these waters 

 which imparts color, turbidity, taste or odor which would impair the usages ascribed to this 

 classification nor shall such matter or substance after the temperature or hydrogen-ion 

 concentration of these waters so as to render such waters harmful to fish or other aquatic 

 life. There shall be no discharge to these waters which will cause the hydrogen-ion 

 concentration or "pH" of these waters to fall outside of the 6.0 to 8.5 range. There shall be 

 no disposal of any matter or substance that contains chemical constituents which are 

 harmful to humans, animals or aquatic life or which adversely affect any other water use in 

 this class. No radioactive matter or substances shall be discharged to these waters which will 

 raise the radio-nuclide concentrations above the standards as established by the United 

 States Public Health Service as being acceptable for drinking water. 1'hese waters shall be 

 free of any matter or substance which alters the composition of bottom fauna, which 

 adversely affects the physical or chemical nature of bottom material, or which interferes 

 with the propagation of fish. 



I'herc shall be no disposal of sewage, industrial wastes or other wastes in such waters, 

 except those which have received treatment for the adequate removal of waste constituents 

 including, but not limited to, solids, color, turbidity, taste, odor or toxic material, such that 

 these treated wastes will not lower the standards or alter the uasges of this elassirication, nor 

 shall such disposal of sewage or waste be injurious to aquatic life or render such dangerous 

 for human consumption. 



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3-B-5 



10-80 



