SSIS Logging Best Practices

public static void RaiseTheAlarm(string errPath, string LoadName, Boolean writeToEventLog, Exception ex)
{
//irrelevant code removed
StreamWriter ErrorWrite = new StreamWriter(logPath.ToString()  );
            ErrorWrite.WriteLine("There has been an error in the load of " + LoadName);
            ErrorWrite.WriteLine("Exception Message");
            ErrorWrite.WriteLine(ex.Message);
            string errMess = ex.Message; 

            if (ex.InnerException == null)
            {
                if (errMess.Contains("An unknown error has occurred. Please contact the application administrator for further information."))
                {
                    ErrorWrite.WriteLine("This error typically appears when there is a failure with a call to a web service.  Please chack the appropriate WCF service for errors.");
                }
            }
            else
            {
                ErrorWrite.WriteLine("Inner exception: ");
                ErrorWrite.WriteLine(ex.InnerException.Message);
                if ( ex.InnerException.InnerException != null)
                {
                    ErrorWrite.WriteLine("Inner exception: ");
                    ErrorWrite.WriteLine(ex.InnerException.InnerException.Message);
                }
            }
            ErrorWrite.Flush();
            ErrorWrite.Close();
          //irrelevant code removed
}