The City of Costa Mesa's Fire & Rescue and Parks & Community Services Departments want to teach you about the importance of pool barriers in your backyard home. Did you know that in Orange County last year, children under the age of 4, who had a drowning incident in their backyard pool, were playing near the water alone and fell in when they drowned.(International Live Saving Federation) Follow the barrier requirements listed below to ensure your backyard pool is water safe for you and your family! Prevention is the greatest cool in combating the drowning epidemic.