There are currently 19 subdivisions within the boundaries of Brazoria County Municipal Utility District No. 28 (“BC MUD 28”). In most of these subdivisions, there are detention or retention ponds designed to hold and distribute storm water runoff. Retention ponds hold water indefinitely (they retain or permanently hold the water), while detention ponds are dry and act like a temporary storage area for stormwater to prevent flooding. BC MUD 28 is responsible for ensuring that the ponds effectively perform the functions they were constructed for, namely the efficient handling of storm water.