stormwater · storm water bmp’s • cover storm drain openings or turn off application • do not...

ENVIRONMENTAL HEALTH & SAFETY

STORMWATERGeneral Awareness Training

1972 – Congress enacts Clean Water ActRegulates wastewater pollution

1987 – Congress amends Clean Water ActStormwater pollution regulation added

1990 – Industrial, Construction and Municipal Stormwater Permits• 1990 - Municipal Phase I Populations > 100,000 • 1999 - Municipal Phase II Populations < 100,000

Traditional (Cities) 2013 – Municipal Phase II, Non-Traditional (CSU Campuses)

Regulatory History


What does all that mean? The Clean Water Act mandates the elimination of

Stormwater pollution within 3 categories: Industrial, Construction and Municipal (cities) Universities are considered small (Phase II),

Municipalities (non-traditional) that must regulate their own Separate (not connected with the sanitary sewer) Storm Sewer Systems (MS4).

Cal State LA is treated just like any other local agency, such as City of Los Angeles.

Phase II Non-Traditional MS4 or MS4


BMP – Best Management Practice MS4 - Municipal Separate Storm Sewer System Stormwater - water that originates during precipitation events

and snow/ice melt. TMDL - Total Maximum Daily Load the amount of a pollutant

discharged into a waterbody without causing it to become impaired.

Urban Runoff - is surface runoff of stormwater created by urbanization. This runoff is a major source of urban flooding and water pollution.

Watershed - A watershed is the area of land where all of the water that is under it or drains off of it goes into the same place.

Stormwater Terms


Los Angeles River Watershed(834 square miles)


Cal State LA is located in the eastern area of the LA River Watershed. The Los Angeles River is to the West and Laguna Channel is to the East.Laguna Channel goes under the I-10 Freeway, just east of the 710 Freeway as it travels south towards the LA River.

Did you know -One (1) inch of rain over the LA River Watershed is almost 260,000,000 gallons of water.That’s almost 400 Olympic size pools with only 1 inch of rain.

• In the 1870’s Los Angeles was little more than a village with a population of 5,000 and the Los Angeles River flowed year round.

• By 1900 the population was over 100,000• By the 1920’s pumping water from the San Fernando Valley Aquifer

dried up the LA River.• By the 1930’s the population was over 1.2 million• Late in the 1930’s severe and frequent flooding prompted the Federal

Government to begin construction of flood control channels built by paving the LA River bed.

• By 2013 the population in Los Angeles County exceeded 10 million.• Today the LA River is almost entirely paved and it is a said that water

from the San Gabriel Mountains will reach the Ocean faster than you can drive there in a car.

Los Angeles and its River


LA River – Griffith Park 1900

The Los Angeles River


LA River – Burbank 2012

Urban Runoff is surface runoff of stormwater created by urbanization.

It is high volume, fast moving water that can overwhelm storm drain systems causing flooding.• Prompted the conversion of the LA River to Flood

Control Channels Fast moving water picks up trash and debris and carries

it down river.• it “washes” everything along the way picking up

surface contaminants

Urban Runoff


Urbanization and Runoff


• Remember - 1 inch of rain over the LA River Watershed was 260 million gallons of water.

• So in 1900 about 10% or 2.6 million gallons of Stormwater runoff went to the ocean.

• Now, potentially 55% or 143 million gallons of Stormwater runoff rushes to the ocean.

• More than 50 times the volume of Stormwater/Urban runoff since Urbanization!

Stormwater Runoff


Effects of Urban Runoff


Trash• Sediment, debris, vegetation and litter from the influence

of human beings on nature Nutrients (nitrogen and phosphorus)

• Lawn fertilizers, atmospheric deposition, automobile exhaust, soil erosion, animal waste, detergents

Bacteria and Viruses• Leaky sanitary sewer lines, sanitary sewer cross-

connections, animal waste, septic systems Metals

• Automobiles, atmospheric deposition, industrial areas, soil erosion, corroding metal surfaces, combustion processes

Pollutants of Concern


The amount of a pollutant discharged into a waterbody without causing it to become impaired.

Pollutants of Concern have TMDL’s• TRASH • NUTRIENTS (nitrogen)• BACTERIA (E. coli, coliform)• METALS (copper, cadmium, lead, zinc, aluminum and

selenium)

Total Maximum Daily Load - TMDL


A BMP is a method used to prevent or control stormwater runoff and / or the discharge of pollutants in stormwater runoff.

Types of BMP’s• Structural: Physical Devices• Procedural: Activities/Practices

BMP awareness and usage is everyone’s responsibility.

Best Management Practices (BMP’s)


• Equipment/vehicle rinsing area (wash rack)• Storm drain inserts/silt fences• Bioswales• Oil Separators• Carbon Filters

Examples of Structural BMP’s


Containerize all trash and garbage• Keep dumpsters closed when not being actively

filled General Housekeeping - Keep areas around the

buildings/ structures clean. Fertilizer, herbicide and insecticide application Keep sediment out of storm drains

• Cover exposed dirt piles to prevent erosion Maintain all equipment to ensure proper operations.

Examples of Procedural BMP’s


Implementation was phased over 5 years• We are in the 6th year

Key Elements• Education and Outreach• Illicit Discharge Detection and Elimination• Pollution Prevention / Good Housekeeping• Post Construction Storm Water Management• Program Effectiveness and Improvement

MS4 Implementation


Storm Water • water that originates during precipitation

Storm Water Runoff• Storm water that does not soak in or is not absorbed

into the soil. Most run off does NOT receive treatment

Pollutants of Concern• Trash, Nutrients, Bacteria and Metals

Goal – reduce the amount of storm water runoff and improve the quality of runoff

Review


Stormwater Awareness Quiz


1. What is Stormwater Runoff?1. Any type of drainage2. Precipitation that flows over the ground and

is deposited into drainage systems or waterways

3. Water from firefighting activities4. Irrigation overflows

3. What does BMP stand for?A. Best Management PracticeB. Better Management PrioritiesC. Better Management ProcedureD. None of the above

2. In general, Stormwater receives treatment to remove pollutants before being discharged into a waterway?

A. TrueB. False

4. What are our Pollutants of Concern?A. TrashB. Bacteria and VirusesC. Nutrients (Fertilizers)D. MetalsE. All of the above

Print Name: __________________________________________

Signature: __________________________________________

Date: __________________________________________

The Grounds department has an important role in the University’s Storm Water Program.• A section of the State Permit is dedicated to this

topic F.5.f POLLUTION PREVENTION/GOOD HOUSEKEEPING

FOR PERMITTEE OPERATIONS PROGRAM• Pesticide, Herbicide and Fertilizer Application• New Landscape Design and Maintenance

Management

Stormwater – Grounds


Evaluate pesticides, herbicides and fertilizers and application activities• On-going evaluation of the types, amounts and

inventory Impact of these materials on Storm Water

• Nutrients (in our case fertilizers) Best Management Practice(s) BMP’s

• Application Activities

Stormwater – Grounds


Grass clippings and leaves• Clippings and leaves are mulched (not collected)• Removed from “hard scape” after service• Scheduled street sweeping

Pesticide and fertilizer application• No application when two (2) or more consecutive days

have a greater than 50% chance of rain- Monitor weather forecasts October – April

• Limit use of pesticides and fertilizers

BMP’s (Best Management Practices)Fertilizers, Herbicides and Pesticide


Fertilizer application near storm drains• Prevent application within 25 feet of storm drains and

catch basins- Stop application through equipment controls- Cover storm drains during application

• Apply at the minimum effective rate Disposal of unused products

• Contact EH&S for proper disposal of all products Minimize irrigation run-off

BMP’s (Best Management Practices)Fertilizers, Herbicides and Pesticide


Storm Water BMP’s• Cover storm drain openings or turn off application• Do not apply fertilizers or pesticides when there is a 50%

chance of rain• Keep clippings and leaves out of drains

Pollutants of Concern• Trash, Nutrients (fertilizers), Bacteria and Metals

Goal – reduce the amount of storm water runoff and improve the quality of runoff

Review


Stormwater Awareness QuizFertilizers, Herbicides and Pesticide


1. A Stormwater Best Management Practice (BMP) is not to apply fertilizers within 25 feet of a storm drain. What are two (2) ways this can be done.

A. Cover the drain openingB. It’s not a Storm Water BMPC. Stop the flow of fertilizerD. A. and C.

3. What is a BMP leaves and grass clippings?

A. Blow them into the plantersB. Mulch the leaves and clippings while

mowingC. Sweep them in to curb openings and

catch basinsD. None of the above

2. A Stormwater Best Management Practice (BMP) is to apply fertilizers when there is a 50% chance of rain?

A. TrueB. False

4. Fertilizer is not Pollutants of Concern?A. TrueB. False

Print Name: __________________________________________

Signature: __________________________________________

Date: __________________________________________

Contact UsRisk Management and EHSCALIFORNIA STATE UNIVERSITY, LOS ANGELES5151 State University Drive, Los Angeles, CA 90032

Phone323.343.3531

[email protected]

Webwww.calstatela.edu/ehs

stormwater · storm water bmp’s • cover storm drain openings or turn off application • do not...

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