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!
1 Austin Mahone: Every girl dreams of dating Austin and Selena Gomez is the lucky one. 2  They have been dating since the beginning of 2014 in January. 3  They are both singers and Austin happens to be younger than her.