LD 1137
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LD 1137 Title Page PUBLIC Law Chapter 257 Page 2 of 2
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LR 119
Item 1

 
CHAPTER 257

 
H.P. 840 - L.D. 1137

 
An Act Regarding Riverine Impoundments

 
Be it enacted by the People of the State of Maine as follows:

 
Sec. 1. 38 MRSA §464, sub-§13 is enacted to read:

 
13.__Measurement of dissolved oxygen in riverine impoundments.__
Compliance with dissolved oxygen criteria in existing riverine
impoundments must be measured as follows.

 
A.__Compliance with dissolved oxygen criteria may not be
measured within 0.5 meters of the bottom of existing
riverine impoundments.

 
B.__Where mixing is inhibited due to thermal stratification
in an existing riverine impoundment, compliance with numeric
dissolved oxygen criteria may not be measured below the
higher of:

 
(1)__The point of thermal stratification when such
stratification occurs; or

 
(2)__The point proposed by the department as an
alternative depth for a specific riverine impoundment
based on all factors included in section 466,
subsection 11-A and for which a use attainability
analysis is conducted if required by the United States
Environmental Protection Agency.

 
For purposes of this paragraph, "thermal stratification" means a
change of temperature of at least one degree Celsius


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