abstract
addiction
allowed
bacteria
ban
beverage
caution
clean
control
cooking
danger
dirty water
drink
drip
drop
eat
environment
faucet
flow
fluid
fresh
harmful
healthy
hygiene
industrial
industry
infected
info
law
liquid
metal tap
no
notice
plumber
polluted
pollution
potable
prohibited
prohibition
purity
quality
regulation
rule
safety
sign
stop
supply
symbol
tap
toxic
toxin
unhealthy
warning
wash
water
water tap