HomeMy WebLinkAbout96.Item 6 PPP Administration 09-13-17 - Urban Runoff ProgramURBAN RUNOFF DIVERSION PROGRAM
ENVIRONMENTAL SERVICES DEPARTMENT
MARK KAWAMOTO
ENGINEERING SUPERVISOR
RESOURCE PROTECTION DIVISION
DIVERSION BACKGROUND
Huntington Beach
Newport Beach
1.Beach Closures Due To Bacteria
2.Selenium TMDL
WHY DIVERT URBAN RUNOFF?
Peters
Canyon
Diversion
1St Street
Diversion
Adams Diversion (Huntington Beach)
WHY DIVERT URBAN RUNOFF?
High Bacteria Levels Close Beaches
Current Urban Runoff PolicyResolution No. OCSD 13-09
•10 MGD Maximum Flow
•No Additional Cost
•Only if Capacity Is Available
•No Wet Weather Discharges
•Policy Addresses Public Health or
Environmental Problem
OCSD’s PARTNERS
•Orange County Public Works
Santa Ana River, Huntington Beach Channel, Greenville Channel
•City of Huntington Beach
Adams, Atlanta, Banning, Flounder, Hamilton, Indianapolis, Meredith, Newland, Scenario, Yorktown and 1st Street CDS
•City of Newport Beach
Big Canyon, Newport Dunes, Mid Big Canyon
•Irvine Ranch Water District
Los Trancos Canyon, Muddy Canyon, Peters Canyon
•PH Finance (Pelican Hill Resort)
Pelican Point
Program Administration
•OCSD coordinates with O.C. Watersheds
(Technical Advisory Committee)
•OCSD and Permittee execute an
Agreement for Dry Weather Urban Runoff
•Dry Weather Urban Runoff Discharge Permit
issued for each diversion
Diversion Locations
Discharge to
Plant 1
Dry Weather Urban Runoff Quality
•Routine Monitoring
Both OCSD and Permittees
•Very Good Compliance Record
Heavy metals, oil & grease, malathion,
and TTOs (chloroform, toluene) at
near detection limit concentrations
•Occasional Sulfide Exceedances
Impact •Summer Dry Weather -97% of sites score A and B grades•Winter Dry Weather -93% of sites score A and B grades•Wet Weather –44% of sites score A and B grades(down from 5-year average of 60%)
Location Summer
Dry
Winter
Dry
Wet Weather
Brookhurst Street A B B
Crystal Cove State Beach A+A+A+
Huntington Street A+A C
Magnolia Street A A A
Muddy Canyon Beach A+A+A
Newport Dunes –
4 monitoring locations A A+F
Pelican Point Beach A+A+A+
Santa Ana River Mouth A A C
Honor Award Recipient
PROGRAM at a GLANCE
ENVIRONMENTAL SERVICES DEPARTMENT
QUESTIONS?
URBAN RUNOFF DIVERSION PROGRAM