Tag: POTW Flow


This installment of my blog series will give you a brief idea on the calculation of MAHLs. MAHL is an estimate of the upper limit of pollutant loadings to a POTW intended to prevent pass through or interference. MAHLs are the basis for local limits and are calculated in three steps: Calculate POTW removal efficiency for […]

Local Limits: Review and Analysis of Data

As mentioned in my previous blog, this blog entry looks at the review and analysis of data collected in order to develop Local Limits. Sampling data evaluations may reveal improperly collected data, elevated detection limits and new POCs. If data has been improperly collected, POTWs will want to educate the responsible person on data collection […]