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

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

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.

Great Northern Engineering Drawing: Wastewater Treatment Facility at Havre, Montana, prepared in 1979. Burlington Northern File Number 1411, Reference Number 10102, Sheet A-5.

Great Northern Engineering Drawing: Wastewater Treatment Facility at Havre, Montana, prepared in 1979. Burlington Northern File Number 1411, Reference Number 10102, Sheet N11.

Great Northern Engineering Drawing: Wastewater Treatment Facility at Havre, Montana, prepared in 1979. Burlington Northern File Number 1411, Reference Number 10102, Sheet N12.

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

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

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