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

Great Northern Engineering Drawing: Wastewater Treatment Facility Bracket Seal 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 001.

Great Northern Engineering Drawing: Wastewater Treatment Facility Air Dissolving Tank at Havre, Montana, prepared in 1979. Burlington Northern File Number 1411, Reference Number 10108, Sheet 001.

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

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

Great Northern Engineering Drawing: Wastewater Treatment Facility Platform and Ladder 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 002.

Great Northern Engineering Drawing: Wastewater Treatment Facility at Havre, Montana, prepared in 1979. Burlington Northern File Number 1411, Reference Number 10101.

Great Northern Engineering Drawing: Wastewater Treatment Facility at Havre, Montana, prepared in 1979. Burlington Northern File Number 1411, Reference Number 10104, Sheet G12.