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Newport Bay Watershed
❖ Partnership to Address Water Quality Concerns within the Newport Bay Watershed
❖ Councilmember Duffield Represents City on Executive Committee
Partners
NEWPORT BAY WATERSHED MANAGEMENT AREA County of Orange, California =`
• County of Orange
• City of Newport Beach
• City of Irvine.
• City of Tustin
e,F i
City of Santa Ana
• City of Lake Forest
VW
• City of Costa Mesa
0 ,
s
• Irvine Ranch Water District
• The Irvine Company;n
• CA Dept. Fish & Wildlifea,�k=
• Santa Ana Regional WQ Control
Board
w j
f Harbor/BayWaterQuality
Sediment Deposition into Bay
Original Issue: Unchecked Sediments being Deposited into Upper & Lower Bay
Sediment Control Practices Began in 1983
Sediment TMDL was Established in 1999 (set numerical limits)
700 ,
600 1
C
0
v
0
= 400
C
0
E
v
v
300
200
1,00
TMDL Period
aTMDL 10 -YR TARGET
� s� �
62,500 701isNr
10 -yr running average
10 yr TMDL runnin av_eTV-
42,220 76nslyr
A -j k
0 1 . . I I I I . I . 1. L-. ...- . - =-
1-995 '996 1997 1998 199 2000 2001 2002 2003 2004 2005 2006 2007 2008 2009 2010 2011 2012 2013 2014
9
Harbor/Bay Water Quality
Sediment TMDL Numeric Targets Compliance
62,500 tons
(10 -yr avg.) In compliance
62,500 tons In compliance beginning in 2008
(10 -yr avg.) (with maintenance of S.D. Creek basins)
-7 ft MSL In compliance
(with 1998 dredging project)
-7 ft MSL Out of compliance: 2000 - 2009
In compliance: 2009 — current
:51% Out of compliance by 2004 survey
change Continued expansion of saltmarsh 2004 - 2010
Saltmarsh = 350 acres, TMDL baseline = 277 acres
* TMDL establishes habitat target as "primary measure of success of the TMDL" 4
Harbor Dredging
On-going Need to:
✓ Remove Built -Up Sediments
✓ Provide for Vessel Navigation
✓ Improve and Maintain Water
Circulation and Tidal Flushing to
Improve Water Quality
✓ Maintain Harbor Beaches
2016 Annual Corps Harbor Depth Survey
Harbor/Bay Water Quality
Copper Based Boat Paints
• Most of the Harbor Generally Falls Below California Toxic Rule Limits (CTR - 3.1 ppb)
• Copper Concentrations in some areas of Newport Harbor slightly exceed CTR water
quality criteria
• Rhine Wharf area
• J -Mooring field
• West Newport Island
Lots of Variables in Play
• Tidal Flushing Rates, Depth of Channels
• Concentration and Sizes of Vessels
• T
.4 r' -F r, P � I '
ypes an oncentrCIL ions o u amts current yin use
• Frequency and Method of Vessel Bottom Cleaning
• Sampling set size, locations, dates taken, Relevant or Out -Dated
• Overly Conservative CTR value, Loading Rates,
• New Lower Copper Paint Formulas on the Horizon
0 Other
rol
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AF
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(4.13) (1.95) (2.14) NB -11
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NB -01
(0.992)
NB' -08
(0.309)
Pacific
Ocean
'.
(6.303 .`.
Atli AI
I
to
Total Copper In Sediment
300 Listing Criteria (270 ppm)
250
Z 200
O
150
Z100
z
0 50
0 oiM
OMEM
sp C,
STATION LOCATION
2011-2016: Does not meet Staff Report's methods for 303(d) listing
--,Harbor/Bay Water (duality
Legacy Pesticides - Organochlorine Compounds TMDL
C G
r rr.ttot;^a�
Original Issue: Toxicity Associated with Organocholorine Compounds (OCs) i.e.
DDT, PCBs, Toxaphene and Chlordane (Legacy Pesticides)
• OCs TMDL Established in 2007
• NPDES Permit Requires Sampling of Bay Sediments for Toxicity
• The Good News
✓ Sources of Legacy Pesticides in the Upper Watershed are Disappearing
✓ OCs Appear to be Declining in the Bay Sediments
10
Harbor/Bay Water Quality
Nutrients and Algal Blooms
• Original Issue: Excessive Nutrients causing Algal Blooms in Creek & Bay
• Nutrient TMDL Adopted in 1998
• Requirement - Reduce Nitrogen and Phosphorus Loads by 50% relative to 1990-
1997 Loads
• Reduce Summer Loads by 50% by 2007
• Reduce Winter Loads by 50% by 2012
Treatment Methods Established:
• Nursery Irrigation runoff Recirculation and Reuse
• Education of Landscape Maintenance and Gardener Services
• Upstream Natural Treatment Systems
• All Targets are Currently Being Met
Harbor/Bay Water Quality
Resultant Reduction in Algal Blooms
4 1 San Joaquin Marsh Online r _ j
Algal Density Limit
1994 1996 1998 2CO1 20Q2 2004 2006 2008 2010
Year
Over the last 12 years (from 2003 to 2014)
• Reduced Nitrogen loading by 67,000 lbs/yr or 65%
• Reduced Phosphorus loading by 33,000 lbs/yr or 68%
2012 2014
12
3.5
.__. _
_
.. _ _
.
2.5
Cn
at
Vii. 5
Algal Density Limit
1994 1996 1998 2CO1 20Q2 2004 2006 2008 2010
Year
Over the last 12 years (from 2003 to 2014)
• Reduced Nitrogen loading by 67,000 lbs/yr or 65%
• Reduced Phosphorus loading by 33,000 lbs/yr or 68%
2012 2014
12
Harbor/Bay Water duality
Fecal Coliform Indicator Bacteria (FIB) TMDL
• FIB TMDL Adopted in 1999. TMDL is for Fecal Coliform Only
• Originally Four Permanent Water Quality FIB Postings in the Bay
• One Remaining Posting at Arches Drain 4
Construction of Arches Dry Weather Diversion Summer 2017
• Currently County of Orange/Watershed Partners/OC Coast
Keepers working with RWQCB to determine Next Steps and Path
Forward
13
i
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= - ----- -
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13
Selenium (Fresh Water Concern)
NEWPORT BAY WATERSHED
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Watershed
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RIVERSIDE
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Harbor/Bay Water Quality
Selenium- Big Canyon Treatment Wetland with Diversion
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15
Harbor/Bay Water Quality
Trash and Debris
Capture and Collection Devices
• Install 435 Screens on Catch Basins in the Dry
Season.
• Approximately 40 Continuous Deflective
Separation (CDS) Units Installed Citywide.
(public and private)
• Annually Clean 3.2 Miles of Drainage Channels
and 3,234 Catch Basins.
0 Street Sweep over 36,000 Curb Miles per year.
—'Harbor/Bay Water Quality
Trash and Debris
Capture and Collection Devices
• Upper Bay Log Boom
(More than 60 Tons of Debris Removed this Storm Season)
• Trash Skimmers
• Working on Volunteer Diving Event
17
Trash Collection & Low Flow Diversion Project
Project Partners
A Proposed Santa
Ana Delhi
Diversion
'
Facility Location
If
• City of Santa Ana
• County of Orange
• City of Newport Beach
• City of Costa Mesa
Prosect Goals
• Trash Collection
• Dry Weather Diversion
• Selenium Reduction
Currently Under Construction
18
--� Harbor/Bay Water Quality
Trash and Debris
Capture and Collection Devices
Water Wheel:
52' long x 24' wide x 14' high
G�
Possible Project Locations
Baltimore's Success
9 Removed 406 tons of trash from the Jones
Fall River in a year (May 2014 to May 2015)
. . . . . . . . . ...
Harbor/Bay Water Quality
Significant Water Quality Accomplishments
Weare seeing the best water quality observed in the Bay since the 1960's.
21
149 M
Harbor/Bay Water Quality
Newport Beach WQ is Very Good
BEACH REPORT CARD
22
-P
�' Harbor/Bay Water Quality
Newport Beach WQ is Very Good
Orange County
Dry
(AP-Cctj
Win .. Dry
(N—M.)
Wat W.ffth,,
Year -Round
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project on c' Orange Street
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lith skle-k Oe;xt!
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BEACH REPORT CARD
Heal the Bay
23
narDor/oay
a
s
Newport Beach WQ is Very Good
BEACH REPORT
OR , a .
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A
24
Summer Dry
Winter Dry
Wet Weether
(Apr -Oct)
(Nov -Mar)
Year-R—d
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rare. ANL nt:e Beact.
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grand Canal
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BEACH REPORT
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24
F
Questions & Corn ments
Your Public Works Department
A Well -Engineered Machine
Protecting and Providing Quality
Public Improvements and Services