Freeman did however destroy almost all of the Civil Protection's outposts on his way to Black Mesa East.

Eventually all the bases were either found and destroyed, or were closed down and abandoned. With the arrival of Gordon Freeman, Civil Protection was fully aware of the presence of Resistance refugee stations, and were conducting raids on them.

The generating station concealing Black Mesa East.Īppearances Half-Life 2 The water levels, however, are low, and following the Combine invasion, a large portion of the canals in both the City and outside have become flooded with toxic waste or other hazardous materials.Ĭivil Protection units frequently patrol the Canals for the Resistance activity, and are tasked with maintaining the many Combine buildings and outposts located along the rivers. Outside City 17, the tunnels and sewers give way to rivers and waterways, which are used for transportation rather than drainage and waste disposal, as shown by the many shipwrecks along the larger tunnels. The network is infested with Xen wildlife, and constantly shelled by the Combine. Because of the Combine's invasion and subsequent drainage of Earth's resources, the canals near the city have almost all emptied out, with the riverbed and a large amount of waste remaining.

The canals near and in City 17, connecting the urban center to a river system and dam where its water supply is pumped, appear to be heavily used as drainage, and have a very large network of sewers and waste tunnels.

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