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Terms for subject Water supply (188 entries)

O & M program	operation and maintenance program
Operational Hydrology Program	OHP
ORP	oxidation reduction potential
O.P.	osmotic pressure
out of order	o.o.o.
ORP	oxidation reduction potential
pressure safety valve	p.s.v.
pick-up pump	p.u.p.
permanganate value	p.v.
PAC	polyaluminum chloride
PAC	powdered activated carbon
PAC	purified activated carbon
PAHs	Polycyclic Aromatic Hydrocarbons
PCT	physical/chemical treatment
PDI index	prevalence-duration-intensity index
Permanent International Association on Navigation Congress	PIANC
permanganate value	p.v.
PLP	permissible levels of pollution
pH	Hydrogen Ion Concentration [Potential of Hydrogen]
PS method	phase-separation method