root level logger using other logger level

[Don Taylor]

We have multiple loggers set up for various services that make up our
system.  I think I have the service configured to log ERRORs (and FATAL)
to one file for all code, then qualified a couple separate thread based
services to log debug type information to other files.  Instead I see
DigitalBridgeTrafficControl INFO message in trafficControl.log, where I
thought should ONLY see ERROR and FATAL.

Does a root logger inherit other logger levels, or did I just screw the
configuration up?

The log4net.config file:
<?xml version="1.0" encoding="utf-16"?>
<log4net>
  <appender name="Console" type="log4net.Appender.ConsoleAppender">
    <layout type="log4net.Layout.PatternLayout">
      <conversionPattern value="%date{ABSOLUTE} %thread %logger %5level
[%message] %newline%exception" />
    </layout>
  </appender>
  <appender name="EventLogger" type="log4net.Appender.EventLogAppender">
    <layout type="log4net.Layout.PatternLayout">
      <conversionPattern value="%date{ABSOLUTE} %thread %logger %5level
[%message] %newline%exception" />
    </layout>
    <logName value="Traffic Control" />
  </appender>
  <appender name="TrafficControl"
type="log4net.Appender.RollingFileAppender">
    <layout type="log4net.Layout.PatternLayout">
      <conversionPattern value="%date{ABSOLUTE} %thread %logger %5level
[%message] %newline%exception" />
    </layout>
    <file value="trafficControl.log" />
    <appendToFile value="true" />
    <maximumFileSize value="10MB" />
    <maxSizeRollBackups value="10" />
  </appender>
  <appender name="DigitalBridgeTrafficControl"
type="log4net.Appender.RollingFileAppender">
    <layout type="log4net.Layout.PatternLayout">
      <conversionPattern value="%level: %date{ISO8601} %logger
[%message] %exception%newline" />
    </layout>
    <file value="digitalBridgeTrafficControl.log" />
    <appendToFile value="true" />
    <datePattern value="yyyyMMdd" />
    <maxSizeRollBackups value="28" />
  </appender>
  <appender name="MessageLifetimeUdpAppender"
type="log4net.Appender.UdpAppender">
    <remoteAddress value="localhost" />
    <remotePort value="8080" />
    <layout type="log4net.Layout.XmlLayout, log4net" />
    <encoding value="Unicode" />
  </appender>
  <appender name="MessageLifetimeRemotingAppender"
type="log4net.Appender.RemotingAppender">
    <sink value="tcp://localhost:8081/LoggingSink" />
    <lossy value="false" />
    <bufferSize value="95" />
    <layout type="log4net.Layout.XmlLayout, log4net" />
  </appender>
  <appender name="ICUFileRolloverLogger"
type="log4net.Appender.RollingFileAppender">
    <file value="ICU Logs\ICU.log" />
    <appendToFile value="true" />
    <maximumFileSize value="50MB" />
    <maxSizeRollBackups value="100" />
    <layout type="log4net.Layout.PatternLayout">
      <conversionPattern value="%date{ISO8601},%message%newline" />
    </layout>
  </appender>
  <root>
    <level value="ERROR" />
    <appender-ref ref="TrafficControl" />
  </root>
  <logger name="EnterpriseApplicationIntegration">
    <level value="ALL" />
    <appender-ref ref="DigitalBridgeTrafficControl" />
  </logger>
  <logger name="Tideworks.TC.ICUUtilities">
    <level value="INFO" />
    <appender-ref ref="ICUFileRolloverLogger" />
  </logger>
</log4net>

Thanks for any help!  
Don