The NFPA 70E Standard details multiple levels of Hazard Risk Categories (HRC) [see table 1.1], also called Levels. The greater the risk: the higher the HRC. Arc Rating is the factor that indicates which HRC is necessary, and can be measured in either ATPV or EBT.
The optimal pH range for brook trout appears to be 6.5-8.0,with a tolerance range of 4.0-9.5.Brook trout occur in waters with a wide range of alkalinity and specificconductance, although high alkalinity and high specific conductance usuallyincrease brook trout production (Cooper and Scherer 1967).
There are three species of trout available for pond stocking in Vermont. Brook trout (sometimes called Square Tails or Speckled Trout) are the native species of trout in eastern North America. They prefer the coldest and cleanest water. Rainbow trout are originally from western North America but have become naturalized to this area. They are the ...