Category:Pennsylvania Department of Environmental Protection

Media in category "Pennsylvania Department of Environmental Protection"

The following 3 files are in this category, out of 3 total.

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  Abandoned coal mine subsidence stablization project.jpg 800 × 600; 146 KB
  
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  Smoke hole.png 1,600 × 1,200; 3.24 MB
  
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  Temp probe.png 1,600 × 1,200; 3.16 MB