Session 4B: Tackling Litter and Marine Debris

from Different Angles

Using Infrastructure Controls to StopLitter from reaching the Waterways

in Orange County

By Ziad Y. Mazboudi, PE. QSP/QSD, CPSWQ, CPESC, LEED AP

Senior Civil Engineer

Orange County34 cities & County unincorporated

948 sq. miles13 Watersheds

Population: 3.1 Million

$

42 miles of beaches

= $$$$$

So, how do we go

from this to

that?!

The Basics $Enhanced Street Sweeping Storm drain stencilingPublic Education Beach and creek clean

up eventsTrash/recycling containers Enforcement

Intermediate $$Catch basin screens/inserts

Linear radial screens

Serious TreatmentHydrodynamic Separators

DiversionsLitter Booms

$$$The Trash Infrastructure Pyramid

California Proposed Trash Policy

Catch Basin Screens

United Stormwater screen cover

REM Curb protector with hydrocarbon pouch

United Stormwater ARS wing-gate

Catch Basin inserts

Kristar FloGuard Plus

United Stormwater DrainPac Bio Clean Grate Inlet Skimmer Box

All catch basins in Dana Point have an insert with a filter

Total: 800Cost per year to maintain: $140,000

Average debris removed annually: 50 Tons

1,407 Automatic Retractable Screens 99 Catch Basin Inserts 4 CDS10 Linear Radial Removal Devices 44 curb inlet baskets 1 Marina Trash Skimmer

City of San Juan CapistranoLinear Radial Gross Solid Removal Device

Roscoe Moss

The system can treat up to 970,000 gallons per day, but averages about 350,000 gpd.Trash/debris are removed in wet well,

Poshe BeachSystem treats up to 800 gpm peak (1.8 cfs) or 1.1 million gallons per day.Gross solids (trash/debris) are removed in a wet well, then runoff passes through sand filters and then a UV chamber to destroy bacteria.

City of San Clemente

City of San ClementeStorm Drain Treatment Units

Locations:• Calafia• Parque Del Mar• West El Portal• West Mariposa/Escalones• Palizada• Linda Lane

City of Dana PointDiversions with CDS units

Hydrodynamic separator during construction

CDS unit with debris CDS unit cross section

Media filtration vault at Baby Beach

Trash and Debris booms

Street projects with limited right of way using Filterra or similar devices

Alton Parkway extension project

Resources• Santa Clara Valley Urban Runoff Pollution Prevention

Program – Trash BMP Tool Box- Treatment and Institutional Controls

• MUNICIPAL BEST MANAGEMENT PRACTICES FOR CONTROLLING TRASH AND DEBRIS IN STORMWATER AND URBAN RUNOFF – California Coastal Commission & Algalita Marine Research Foundation

• County of Orange Stormwater Program• City of San Clemente• City of Dana Point• OCTA

Questions

Ziad Y. Mazboudi, PECity of San Juan Capistrano

Senior Civil Engineerzmazboudi@sanjuancapistrano.org

Tel: 949-234-4413www.sanjuancapistrano.org