Non-potable water

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