Detention ponds help control the rate of flow by using a control device that maintains the pre-development rate of flow. The volume of the detention pond is calculated by comparing the pre- and post- development runoff volumes. The difference is the detention volume.
Zayn Malik & Gigi Hadid: Why He Loves Dating Her Even More Than Perrie Edwards. Poor Perrie Edwards. Not only is Zayn Malik happy with his new girlfriend, Gigi Hadid, but he loves her even more than the Little Mix singer, HollywoodLife.com has EXCLUSIVELY learned. Find out why!
Gigi Hadid is more than up for defending herself when it comes to her haters! The 20-year-old supermodel tweeted a dramatic black-and-white picture of her boyfriend, Zayn Malik, on Wednesday, and it wasn't long before some people started chiming in on their relationship. I mean.....