Water is key to life on Earth! In this book, we meet the Clean Water Team who work tirelessly to ensure our water is clean and safe. From testing water for chemicals and bacteria in the labs to ensuring our beaches are kept clean and cleaning waste water, the Clean Water Team must work together. The Clean Water Team is in Lime Book Band, Oxford Reading Level 11. Project X Hero Academy Non-fiction is an inspirational series of books which broadens children's subject knowledge, while consolidating their phonics learning and improving their reading fluency.