Fire station; water and sanitation network

Detail of type b double drain

Chemical physical treatment plant

road siphon

settler

ptar pretreatment

zip gutter transition

biological reactor

Detail of isometric pumping rod

Wastewater treatment plant

by-pass

water treatment plant

sump details

Details of record boxes and mailboxes

Expansion of sanitary drainage

Sewerage

Apartment buildings in a central area

Channel plan; channel design

Landfill

Mailboxes in the sanitary sewer system

Well