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).
Cycle: During October and November the Brown's will move into their homes streams and tributaries to Spawn. Ideal conditions for spawning are: a gravely bottom at the head of a stream, with a temperature range of 44Â° -48Â° F. Food: As a young trout, the Brown feeds mainly on aquatic insects. Once they reach maturity their diet turns towards medium minnows and chubs occasionally feasting on large crayfish and even rodents.