Tap water quality by Pattaya zone.
Zone: Central
Reason: Old pipes in buildings, filter recommended
Zone: Central
Reason: Treated supply, filter for taste
Zone: North
Reason: New supply network
Zone: South
Reason: Chlorination levels vary
Zone: Jomtien
Reason: Reports of discoloration, boil before drinking
Zone: Jomtien
Reason: Generally treated, filter advised
Zone: Naklua
Reason: Old distribution network
Zone: Pratumnak
Reason: Pressure varies, quality OK
Zone: East
Reason: New developments with treatment
Zone: Dark Side
Reason: Well-water mixing, boiling recommended