Phosphate The phosphate level results for the lakes tested are: Tap 1ppm or .99mg/L, Lake Mono 0ppm, Lake Del Valle 2ppm or 1.99mg/L, Lake Horseshoe 9ppm or 8.9mg/L, Lake Silver 2ppm or 1.99mg/L, Lake Mary 0ppm, and Lake Lodi 0ppm. Healthy levels of phosphate in lakes are <0.05mg/L and levels should never exceed 0.1mg/L. Tap water got a .99mg meaning the levels for phosphate in tap is not very healthy. Lake Del Valle and Lake Silver got 1.99mg/L so there water isn’t safe. Lake Mono, Lake Lodi, and Lake Mary had healthy levels of 0. While Lake Horseshoe had a very poisonous level of 9mg/L. This was probably tested wrong because healthy levels of phosphate are below zero. Which also means tap, Lake Del Valle, and Lake Silver were also tested
