Great Northern Engineering Drawing: Wastewater Treatment Facility Head Spray 24 Inch at Havre, Montana, prepared in 1979. Burlington Northern File Number 1411, Reference Number 10106, Sheet 001.

Great Northern Engineering Drawing: Wastewater Treatment Facility Shaft Idler at Havre, Montana, prepared in 1979. Burlington Northern File Number 1411, Reference Number 10110, Sheet 001.

Great Northern Engineering Drawing: Wastewater Treatment Facility Cell Assembly at Havre, Montana, prepared in 1979. Burlington Northern File Number 1411, Reference Number 10107, Sheet 002.

Great Northern Engineering Drawing: Wastewater Treatment Facility Drive Motor Control with Torque Overload at Havre, Montana, prepared in 1979. Burlington Northern File Number 1411, Reference Number 10108, Sheet 001.

Great Northern Engineering Drawing: Wastewater Treatment Facility Instrumentation Control Diagram at Havre, Montana, prepared in 1979. Burlington Northern File Number 1411, Reference Number 10107.

Great Northern Engineering Drawing: Wastewater Treatment Facility Bottom Scraper Arm Assembly at Havre, Montana, prepared in 1979. Burlington Northern File Number 1411, Reference Number 10111, Sheet 001.

Great Northern Engineering Drawing: Wastewater Treatment Facility Flocculation Tank at Havre, Montana, prepared in 1979. Burlington Northern File Number 1411, Reference Number 10107, Sheet 001.

Great Northern Engineering Drawing: Wastewater Treatment Facility Sludge Oil Separation at Havre, Montana, prepared in 1979. Burlington Northern File Number 1411, Reference Number 10107, Sheet 001.

Great Northern Engineering Drawing: Wastewater Treatment Facility Sludge Oil Separation at Havre, Montana, prepared in 1979. Burlington Northern File Number 1411, Reference Number 10107, Sheet 002.

Great Northern Engineering Drawing: Wastewater Treatment Facility General Arrangement at Havre, Montana, prepared in 1979. Burlington Northern File Number 1411, Reference Number 10109, Sheet 001.