Mārupes meliorācijas biedrība

Land amelioration, drainage systems, land reclamation, melioration design, land reclamation project, land reclamation ditch cleaning, betterment in Latvia, betterment in Riga, land use, land survey projects, excavation works, hydrotechical works, water management, water-pipe and sewerage, sewerage, sewerage construction, sewerage installation, water-supply systems, water supply design, water-pipe design, water pipe, quarrying, pond, pond digging, pond arranging, pond project development, pond projects, drainage, drainage system, drainage installation, drainage construction, geodesy, project development, designing, construction supervision, construction supervisor, consultations, advice about sewerage construction, advice on land reclamation issues, project approval, land amelioration society