Do storm drains have filters?
It is important to note that everything that goes down the storm drain goes directly to the ocean. Currently there are no filters on storm drain inlets which poses a major pollution risk, because trash, sediment, organic debris, and spills in the streets are carried through the unfiltered storm drain system.
Where do storm drains go San Diego?
San Diego, as opposed to many cities in the East and Midwest, has separate sanitary and stormwater sewer lines. Waste water from residential and industrial use is pumped to treatment stations where it goes through a number of processes to clean it up before it goes into the ocean.
What do storm drain filters do?
Storm Drain Filters are one of the most effective ways to remove phosphorous, hydrocarbons, oil, sediment, silt and even heavy metals from your site runoff.
What is a stormwater catch basin filter?
StormBasin is a catch basin insert filter that captures and treats stormwater pollutants commonly found in runoff from parking lots or alongside roadways, such as: sediment, debris, nutrients, coliform bacteria, oil/grease and dissolved metals.
What is a filter drain?
Filter drains are gravel filled trenches that collect and move water. They also treat pollution. The trench is filled with free draining gravel and often has a perforated pipe in the bottom to collect the water. They are widely used to drain roads and are often seen along the edge of main roads.
What is street runoff?
And now when it rains, the water (often called runoff or stormwater) runs off roofs and driveways into the street. Runoff picks up fertilizer, oil, pesticides, dirt, bacteria and other pollutants as it makes its way through storm drains and ditches – untreated – to our streams, rivers, lakes and the ocean.
What are the sources of water pollution in San Diego?
Sources of pollutants within the San Diego River Watershed include urban and agricultural runoff, mining operations, and sewage spills. Under Section 303(d) of the Clean Water Act, the Lower San Diego River Watershed was identified as impaired for coliform bacteria.
How do you filter stormwater runoff?
Stormwater is filtered through a natural, or an engineered filter media, and systems are commonly designed with two chambers. The first is a sediment chamber, or forebay, where larger particles deposit before the runoff water is filtered in a filtration bed of sand where fine particles are removed.
What is sediment filter?
Sediment filters are designed to capture and remove sand, silt, dirt, and rust from water. By removing these particulates from. water, a sediment filter is able to protect a water treatment system (such as a water softener or UV water sterilizer), as well as water-using appliances.
What is a catch basin insert?
A catch basin insert is a device installed in a storm drain to provide water quality treatment through ltration or absorption. Catch basin inserts fit into existing catch basins and are configured to remove one or more of the following contaminants: coarse sediment, oil and grease, and litter and debris.
How does the San Diego storm drain system work?
The City of San Diego operates a storm drain system that protects homes, businesses and institutions against flooding. When it rains, the system carries water off our streets and out to our rivers, creeks, bays and the ocean. None of this water is treated.
What is storm drain cleaning?
Storm drains are designed to handle normal water flow, but occasionally during heavy rain, flooding will occur. Our goal is to limit the number of flooding incidents by keeping the drains clear with regular maintenance and cleaning.
What is the stormwater Division doing for San Diego residents?
The Stormwater Division has created a series of fact sheets to help residents, businesses, and those working in San Diego to better understand the minimum best management practices and how to implement them. English and Spanish versions are available below.
What does the storm water department do?
The Storm Water Department is responsible for inspection, maintenance and repair of the storm drain system in the public right-of-way and in drainage easements. This includes clearing blocked drains, removing debris from storm drain structures, and cleaning and repairing damaged drainpipes.