Santa Monica State Beach after an early morning rain storm on Thursday. (Daniel Archuleta daniela@smdp.com)

Santa Monica State Beach after an early morning rain storm on Thursday. (Daniel Archuleta daniela@smdp.com)

The Los Angeles Public Works Department is urging residents to keep the streets clean to protect local waterways due to a stormy forecast through Friday.

Despite the installation of trash boom collection systems at the Ballona Creek and Los Angeles River and trash catching protective screens, litter has still appeared in urban river centers and the Pacific Ocean, according to a press release by the department.

The Department of Public Works advises residents to prevent stormwater pollution by putting litter and cigarette butts in trash cans; carrying a litter bag and remembering to use it; picking up after pets; recycling beverage containers; keeping truck beds litter-free; tying down truck payloads; use pesticides and fertilizers sparingly and never use them before it rains.

In addition, the department advises residents to recycle used motor oil and oil filters at a designated recycle center.

For more information about the county’s stormwater pollution prevention programs, call (888)253-2652 or visit cleanla.com