Non-potable water

⚠️ warning ⚠ warning ☣ biohazard ☢ radioactive ☢️ radioactive ☣️ biohazard 🚫 prohibited 🚸 children crossing 🚷 no pedestrians 🚭 no smoking ⛔ no entry 📵 no mobile phones 🚳 no bicycles 🚯 no littering 🔞 no one under eighteen