This nearby city of Balikpapan has a big problem with water; it's 80 percent surrounded by seawater, and we have now a lot of intrusion there.
附近这座城Balikpapan有很严重的水资源问题， 它被百分之八十的海水围绕， 而现在我们得到了许多水进入地质岩层中。