Ukuhlinzekwa kwamanzi ezimbonini nasezimayini zasemadolobheni kanye ne-drainage, ubunjiniyela bakamasipala, ukuhlanzwa kwendle.
Ukujikeleza nokuthuthukisa amanzi ngensimbi, i-metallurgy, izitshalo zikagesi, ukwakhiwa kwemikhumbi, izitshalo zamanzi, njll.
Amaphrojekthi okonga amanzi kanye nokubusa kwemifula.
Ukuchelela emapulazini, ukufuywa kwezilwane zasemanzini, amapulazi kasawoti, njll.