maximum contaminant levelmaximum flowmaximum known floodmaximum likelihoodmaximum possible floodmaximum possible precipitationmaximum premissible velocitymaximum probable floodmaximum probable precipitationmaximum probable precipitation pmpmaximum probable rainfallmaximum stream flowmaximum temperaturemaximum thermometermaximum unit tractive forcemaximum velocitymeadowmeanmean annual precipitationmean annual rainfallmean annual runoffmean depthmean high watermean high water levelmean low watermean low water levelmean monthly dischargemean monthly precipitionmean sea levelmean sea level pressuremean section methodmean velocitymean velocity curvemean water stage of rivermean water trainingmeandermeander belfmeander lengthmeander ratiomeander scouringmeander widthmeandering meandering rivermeandringmeasuring weirmechanical analysismechanical erosionmechanical practicesmechanical rakemechanical turbulencemechanically cleaned screen