Non-potable water

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