HomeMy WebLinkAboutItem 1 PPP 09-18-19 Special Board Meeting - Strategic PlanStrategic Plan Development
Tonight's Policy Discussions:
•Constituents of Emerging Concern
•Environmental Water Quality, Stormwater
Management and Urban Runoff
•Water Reuse
•Biosolids Management
•Food Waste Treatment
Constituents/ Contaminants of Emerging Concern Policy
Book page: 9
Presented by Roya Sohanaki
Engineering Manager
Policy Question
Should OCSD take a lead role on
Constituents of Emerging Concern
in wastewater and develop detection
and characterization methods in
wastewater treatment?
What are CECs?
CECs or Contaminants of Emerging Concern
(also called Constituents of Emerging Concern)
Pollutants that may or may not be subject to
regulatory requirements or statues, yet pose a risk
to public health and/or the environment
Federal & State Requirements
Federal
•Clean Water and Air Acts
•Federal Pretreatment Regulations
•Federal Biosolids Regulation
•Other Federal Legislation and
Regs
Local
•Approved Pretreatment Program
•Wastewater Discharge Regulations
(Pretreatment Ordinance approved by
Board)
•Enforcement Response Plan
•Permits & Enforcement Actions
State
•State Legislation and
Regulations
•NPDES Permit (with USEPA)
•Recycled Water Regulations
•Ocean Plan
•Air Quality Regulations
CEC Study Requirements:
Hormones (8)
Industrial Endocrine
Disrupting Compounds (7)
Pharmaceuticals and
Personal Care Products (13)
Flame Retardants (9)
Partnering with Others
OCSD’s Laboratory
Partnering with OCWD
Levels of Service
•1,4-dioxane: 10 µg/L
•NDMA: 0.15 µg/L
•Perchlorate: 15 µg/L
OCSD/OCWDResponse Plan
12 Trunkline
Sampling
Locations
7 at Plant 1
5 at Plant 2
Monitoring CECs
Potential
sources of
CECs
Controlling CECs
Residential Example: Safer Consumer Products
•Public Outreach
•Local, State, & Federal Legislation
Commercial Example: Dry Cleaners use of Perchloroethylene
•Public Outreach
•Local, State, & Federal Legislation
Industrial
•OCSD’s Pretreatment Program
•Permitting & Enforcement
Controlling CECs
•CECs are not new to OCSD
•This framework has been implemented over decades
Some Examples CECs Timeline
Polychlorinated biphenyls (PCBs)1970s-1980s
Dimethyldithiocarbamate (DTC) &
N-Nitrosodimethylamine (NDMA)1990s-2000s
1,4-dioxane 2000s-2010s
per-and poly-fluoroalkyl substances (PFAS)2010s-
PFAS (per-and poly-
fluoroalkyl substances)
At a molecular level,
the strong carbon (C)
and fluoride (F)bonds
on PFOA and PFOS
substances do not
break down easily and
can stay in the
environment
PFAS Biomonitoring
* geometric mean (CDC 2017)
PFAS (per-and poly-fluoroalkyl substances)
Source: Australian Department of Defense
PFAS in Aqueous Film
Forming Foams (AFFF) has
entered watersheds when
used at airports and
military bases
Gathering Data
•OCSD expects to acquire data on PFAS
concentrations in influent and effluent
•Where do we look and how do we look for it?
PFAS Industrial Survey
•Canvasing Industries
•Focus on locations with a higher probability of
PFAS presence
•Visit each facility and review processes,
chemicals, and Safety Data Sheets (SDS)
OCSD’s Plan
•Monitoring method development & providing input
•Monitor regulations, legislation, and media
•Align resources/coordinate with OCWD & other agencies
•Attending and participating in workshops
Learn and Collaborate
Plan and Prepare
•Educate and engage regulators & legislators
•Inform stakeholders on current requirements & future issues
•Work with Board to establish policies, limits, and standards
•Find & inspect potential CEC sources
•Sample and analyze using approved method
•Evaluate & compile data
•Implement Board Policy & federal/state regulations (OCSD Pretreatment Program)
Investigate and Act
Policy Question
Should OCSD take a lead role on
Constituents of Emerging Concern
in wastewater and develop detection
and characterization methods in
wastewater treatment?
Initiatives to Support Policy
Initiative: OCSD will continue to actively engage water
and wastewater stakeholders on CECs to stay abreast of
the scientific progress and provide timely briefings to
OCSD’s management and the Board to facilitate informed
decision making.
Initiative: OCSD will continue to develop capacity to
detect, quantify, and characterize CECs throughout the
service area and treatment process to promote treatment
effectiveness and the communication of credible risks.
Questions?
Environmental Water Quality, Stormwater Management and Urban Runoff Policy
Book Page: 17
Presented by Lan Wiborg
Director of Environmental Services
Policy Question
Should OCSD explore
accepting controlled discharge
of stormwater?
Sanitary Sewer vs. MS4
Dry Weather Diversionsto OCSD
OCSD
•Treatment capacity
•Cost containment
•Asset protection
•Regulatory compliance
•Potable reuse/GWRS
Source Control Program
•Pollutant / Water quality
management
•Support capacity management
Wastewater
•Domestic
•Industrial permittees
•Non-industrial permittees
•Dry weather runoff diversion
agreements
OCSD Urban Runoff Resolution
•Address public health and/or
environmental problems associated
with certain pollutants
•Limited system capacity (10 MGD total)
•Waive fees and charges for authorized
discharges
•Prohibit wet weather urban runoff
diversion to sewer
OCSD Dry Weather Urban Runoff
Diversion Program
•Address beach closure due to bacteria
•Selenium in upper Newport Bay
Dry Weather UrbanRunoff Diversion
Gate left open
= uncontrolled
discharge to
sewer
Pump must be
activated =
controlled
discharge to
sewer
Stormwater
Sewer
Stormwater
Sewer
Acceptance
Criteria
•Sewer capacity (10 MGD total)
•Must be pumped to prevent uncontrolled release
•OCSD reserves right to reject flow
Controlled Discharge to OCSD
Current Status
City of
Huntington
Beach
City of
Newport
Beach
County of Orange Public
Works
Irvine Ranch
Water District
LLC within the
Pelican Point
community
OCSD maintains 21 active Dry Weather Urban Runoff
Permits for diversions owned by:
Last year OCSD received an average of 1.03 MGD from these facilities
Well below the current 10 MGD policy cap and 9 MGD action
threshold
Since 2000, the program has treated 9.4 billion gallons of urban runoff
Diversion Locations
Discharge to Plant No. 1
Achievements
Some OCSD-service area beaches made the
report card ‘honor roll’ with a rating of
92%of beaches in Orange County
received an ‘A’ rating during summer
dry weather conditions
A+
Area of Special Biological Significance
Program at a Glance
~0.92 Million Gallons
Per Day
9.8 Billion Gallons in…
19 Years
Current Status
OCSD
•Treatment capacity
•Cost containment
•Asset protection
•Regulatory compliance
•Potable reuse/GWRS
Source Control Program
•Pollutant / Water quality management
•Capacity management
Wastewater
•Domestic
•Industrial permittees
•Non-industrial permittees
•Dry weather runoff diversion agreements
Stormwater
Infiltration/Inflow
•Volume
•Pollutants
•Sand/Silt
Wet Weather Runoff
•Volume
•Pollutants
•Sand/Silt
Policy Question
Should OCSD explore
accepting controlled discharge
of stormwater?
Average Monthly Flow vs. Peak High Flow
Multi-benefit Model
OCSD
•Treatment capacity
•Cost containment
•Asset protection
•Regulatory compliance
•Potable reuse/GWRS
Source Control Program
•Pollutant / Water quality
management
•Capacity management
Wastewater
•Domestic
•Industrial permittees
•Non-industrial permittees
•Dry weather runoff diversion agreements
Stormwater
Infiltration/Inflow
•Volume
•Pollutants/sand/silt
Wet Weather Runoff
•Volume
•Pollutants
•Sand/silt
Treatment
Storage
Stormwater Reuse
(no discharge to WRRF)
•Site-specific
•Flexible design
•Cost containment
•Community value
•Habitat value
Proposed Policy
Partnership
with
Member
Agencies
No Charge
$
for Member
Agencies
Improve
Beach and
Ocean
Water
Quality
Protect OCSD Workers, Reuse, Sewers, Plants and Compliance
Prevent
Overflows
During
Storm
Events
Accept up
to 10 MGD
Dry Weather
Runoff
Initiatives to Support the Policy
Initiative:
Continue Urban Runoff Program under Resolution 13-09
Accept up to 10 MGD of pumped dry weather urban
runoff from local agencies
…where there is existing capacity and conveyance
infrastructure
…and constituents will not adversely affect OCSD
Initiative:
Continue working with local agencies to
…determine feasibility of regional wet weather runoff
capture, storage, and reuse
…offer alternatives for runoff disposal through permits or
written authorization
…promote responsible stormwater utilization and sewer
protection
…ensure stormwater is held for evaluation prior to
controlled discharge to sewer
Initiatives to Support the Policy
Water Reuse
Book Page: 23
Presented by Kathy Millea
Director of Engineering
Policy Question
Should OCSD study the feasibility
of tapping non-wastewater sources
for the purpose of generating more
water recycling beyond the final
expansion of GWRS?
2013 Strategic Plan
On November 20, 2013, the Board approved the
Five-year Strategic Plan which included the strategic
goal for “Future Water Recycling”.
Water Factory 21 Project (1970s)Green Acres Project (1991)
Ground Water Replenishment System (2008/2015/2023)
OCSD/OCWD30-Year Partnership
•Seawater intrusion
barrier •2008 –70 MGD potable water
2015 –100 MGD potable water
2023 –130 MGD potable water
•Non-potable water for
landscape irrigation
(purple pipe)
OCSD
OCWD
OCSD and OCWD Joint Campus
OCSD
Lease to
OCWD
Both agencies serve roughly the same service area (~2.5 million residents)
OCSD and OCWDService Areas
OCWD Service Area
OCSD Service Area
Orange
County
Boundary
Largest water purification program of its kind in the world –100 MGD
Takes treated sewer water that otherwise would be discharged to the ocean and purifies it to near-distilled quality
Provides a new 100,000 acre-feet per year source of water, which is enough water for 850,000 people
½ the energy to pump imported water and 1/3 the energy to desalinate ocean water
What Is the Groundwater
Replenishment System (GWRS)?
GWRS is a joint project with joint governance
GWRS Steering Committee
3 Members
Yoh, Green, Sarmiento
+
3 Alternates
Ta, Nguyen, Sheldon
3 Members
Shawver, Ferryman, Shaw
+
3 Alternates
Silva, Hawkins, Peterson
EffluentInfluent
Preliminary
Treatment
Primary
Treatment
Secondary
Treatment
OCSD Wastewater Treatment
Source
Control
OCWD -Advanced Water Treatment
You Are Here
Ultraviolet
Light (UV)
Reverse
Osmosis (RO)
Microfiltration (MF)
Irvine
Huntington Beach
Ocean Outfall
GWRS
Anaheim SpreadingFacilities Santa Ana
River
N
Pacific Ocean
Santiago
Creek
OCSDTreatmentPlants
SeawaterIntrusion Barrier
OCWD -Distribution System
GWRS Groundwater Basin Influent
GWRS Program has many parts
GWRS Program has many parts
GWRS Program has many parts
GWRS Program has many parts
GWRS Production Capacity
GWRS
2008
70 MGD
Initial
Expansion
2015
Final
Expansion
2023
30 MGD 30 MGD 130 MGD
2013 Strategic Plan
On November 20, 2013, the Board approved the Five-year Strategic Plan which included the strategic goal for “Future Water Recycling”.
GWRS Final Expansion Projects
OCSD Design/Construct/Operate (OCWD Fund)
•P2-122 Headworks Modifications at Plant No. 2
•J-117 Plant No. 2 Plant Water Pump Station Relocation
OCWD
•New Flow Equalization Tanks at Plant No. 2
•New Effluent Pump Station at Plant No. 2
•66-inch Pipeline Rehabilitation
•Advanced Water Treatment Facility Expansion to 130 mgd
Advance Water
Treatment
Expansion
Pump Station to
take flow to Plant 1
Existing 66-inch
Pipeline to be
Rehabilitated
Plant Water
Pump Station
Flow Equalization
Tanks
Headworks Modifications
Plant
No. 1
Plant
No. 2
GWRS Final Expansion Schedule
GWRS Final
Expansion
Construction
Completion2023
Available Flow for GWRS Final Expansion
GWRS Final Expansion Production Goal:
134,000 acre-foot/year, or 11,167 acre-foot/month (AF/month)
OCSD Total Influent 185 mgd
(Non-reclaimable flows)-34 mgd
+ Microfiltration Backwash +21 mgd
Total influent to GWRS 172 mgd
Total Product water 128 mgd
Total Water Produced in Month 11,855 AF
OCSD Contributions to GWRS
Water
≈10 Acres Leased for $10
Land
292,000,000,000 Gallons Since 2008 at no charge
OCSD Contributions to GWRS
Additional & Improved Treatment
•GWRS Microfiltration Backwash Water Treatment
•GWRS Reject Brine Disposal
•Additional Projects to support High Quality Water = GWRS 97% on-line factor
•Plant No. 2 Low Flow Pump Station
Flow Management
•Diversions in the Collection System
•Plant No. 1 Treats Higher Flows
•Steve Anderson Lift Station
•Continuous Operational Coordination with OCWD
OCSD Direct Benefits
•Reduced outfall flow = less pumping, less disinfection
•No OCWD charge for first 1 MGD of non-potable water ($700k/year prior to 2009)
•100 MGD emergency outfall flow capacity
100120140160180200220240260280300
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Treated Wastewater
to Ocean
MGD Groundwater
Replenishment
System (GWRS)
in operation since 2008
Wastewater
Recycled
Beyond GWRS
•Potential to create additional water for recycling
•Potential to reduce problematic shallow aquifers
for member agencies
•OCSD may lack legal authority
•Understanding County’s need and other efforts
•Investment need for infrastructure
•Limited land availability based on 2017 Facility
Master Plan
Policy Question
Should OCSD study the feasibility
of tapping non-wastewater
sources for the purpose of
generating more water recycling
beyond the final expansion
of GWRS?
Current Policy Statement
The Sanitation District will seek to recycle 100% of all reclaimable wastewater flows.
Initiatives to Support Policy
Initiative: Support the completion of the final phase of the Groundwater Replenishment System and maximize water availability to the Orange County Water District.
Initiative: Support Green Acres project water production to provide reclaimed water for industrial and irrigation uses.
Questions?
Biosolids Management
Book Page: 5
Presented by Tom Meregillano
Senior Regulatory Specialist
Policy Question
Should OCSD Explore Alternative
Uses for Biosolids?
Background
Background
SolidsTreatment
Dewatering
Centrifuge
Land Application,&
Compost Biogas to
Electricity
Generation
Temperature
Time
Pathogens
Organic Matter
Metals
(Source Control)
Class B
Biosolids
OCSD (95F)
Biosolids
Class A
Biosolids
Others (131F)
•22 Trucks Per Day = 550 Wet tons of Biosolids
Per Day
•Biosolids Management Budget 2019-2020:
$13.4 Million
•Start-up of Centrifuge Biosolids Management
Savings: Approximately $200,000-
$400,000/month (Reduction of Volume)
How Much Biosolids?
Biosolids Program Framework
(Resiliency and Sustainability)
OCSD 13-03
Biosolids Policy
and
2017 Biosolids
Master Plan –
Management
Roadmap
Beneficial Reuse
Diversification
100% Fail
Safe
Management
Capacity
Balance Financial, Environmental,
and Societal ConsiderationsSource: https://tyboyd.com/
California
Arizona
Diversification –Biosolids Distribution –550 Wet Tons/Day
Plant No. 1 and
Plant No. 2
Kern
San Bernardino
Yuma
17% Compost
Liberty Compost Kern
5% Compost
IERCA
39% Compost
Nursery Product
39% Land
Application
Tule Ranch
Current Situation –Organic Waste Market Drivers
Sept
14
CalRecycle
AB 1826 (2014)
CARBCARB/CEC
SB 1383 (2016)
SB 32 (2016)“Organics Market”
Biosolids, Food Waste,
Green Waste, etc.
SB 100 (2018)
Healthy Soils
Initiative
Statewide Organics Diversion (SB 1383)
75% 2025 (5.7 Million Tons)
50% 2020 (11.5 Million Tons)
Baseline (22.9 Million Tons)
Projected Organics in Disposal (If Status Quo)
Maximum Allowable Tons of Organics Disposal to Meet 2020 (50%) and 2025 (75%) Mandates
Historical Organics Disposal
Enforcement Date
Future Policy –Should OCSD Explore Alternative Uses for Biosolids?
Class B
Biosolids (95F)
Emerging
Markets
(CA)
RFI
Fuel
Electricity
Biosolids
Compost
(CA,AZ) Horticulture
and Gardening
Agriculture Crops
Biosolids
Land
Application
(Arizona)Agriculture
Future Policy -Opportunity to Partner with OC Waste & Recycling
Olinda Landfill (Brea)Frank Bowerman
(Irvine)
Prima Deshecha
(San Juan
Capistrano)
Aerial Rendering of New Digesters –Plant No.2 (2030)
Class A
Biosolids (131F)
Future Policy -Biosolids Management (2030)
Horticulture/Gardening
Soil Blending
Agriculture CropsLand Application-
California
Summary Policy Statement
OCSD will continue to
beneficially reuse biosolids and
explore new markets identified in
the 2017 Biosolids Master Plan.
Initiatives to Support Policy
Initiative: Educate and advocate for the used of biosolids as a soil amendment and monitor the development of constituents of emerging concerns that may impact biosolids.
Initiative: Stay abreast of new technology options to convert organics to energy and other regional biosolids recycling and renewable energy partnerships.
Initiative: Proceed with mesophilic and thermophilic biosolids facility at Plant No. 2 to enhance biosolids quality and marketability.
Food WasteTreatment
Book Page: 13
Presented by Rob ThompsonAssistant General Manager and
Director of Operations and Maintenance
Policy Questions
How should OCSD structure
the tipping fee for digestion
of food waste?
Should OCSD conduct a
feasibility study for digestion
of green waste?
Why Accept Food Waste
•Regulation diverting organics from
landfills
•Food waste slurry is compatible with
existing systems
•Existing capacity in digesters, gas
treatment, engine-generators,
dewatering and truck loading.
•Operating for the benefit of the residents
within our mission and legal authority
Health and Safety Code 4700.
OCSD Central Generation System
Challenges Ahead
•Steep learning curve to food waste.
•Lessons learned in Los Angeles County and East Bay MUD.
•Interim Project to learn (10 years)
•Permanent facility with new digesters at Plant No. 2
•Risk to existing 600 tons per day of biosolids (this should not be
underestimated).
•Contamination
•Process upsets (2 million gallon stomachache)
Interim Food Waste
•Biosolids Master Plan Recommendation
•Interim Facility
•Space & Sequencing Constraints
•15-year life specification
•Pre-processed waste only
•5 to 6 trucks per day
•15% more digester gas produced (1MW)
OCSD Central Generation System
Located at Plant No. 2
Main Entrance
Interim Food Waste Facility
Project Basis
Costs
•$6.2 million project budget
•$2.4 million construction cost
•$1 million/year higher O&M costs
Tipping Fee Basis
•Tipping fee to recover
•All operating cost
•Capital cost over first five years of operations
•No credit given for the value of digester gas
•No way to accurately separate sludge versus food waste fraction.
•Gas clean up is costly –offsets value.
•Savings pass through to residents, not Haulers
•Service area preference, premium for outside
Tipping Fee Comparison
Other Agency Review
•Los Angeles County Sanitation District
•Temporary Receiving $20/ton
•Future Permanent Facility $25-40/ton
•East Bay Municipal Utility District $45/ton
•Central Marin Sanitation District $20/ton
•Encina Wastewater Authority $14/ton
Schedule
Project Viability Update to Board Jun 2020
Construction Award Oct 2020
Construction Complete Jun 2022
Exploring Green Waste
•Potential for additional methane
•Potential municipal organics diversion
•Current solids facilities not capable to handling cellulose based plant materials.
•No room onsite with master planned facilities
•Legal requirements
•Health and Safety Code
•Air Regulations (Volatile
Organics, Odor and
Greenhouse)
•Gas Pipeline regulation
•CEQA
•Orange County Waste and Recycling Plans
•Markets for residual materials
Initiatives to Support Policy
Initiative:The Sanitation District will accept a preprocessed food waste slurry from contracted waste haulers that will be fed to existing anaerobic digesters. OCSD will charge a tipping fee to offset its costs for capital construction, operations, handling, maintenance, and biosolids disposal.
Initiative: Design, build, and operate a food waste receiving station. Create a specification for food waste slurry and contract with solid waste haulers to receive and process food waste.
Policy Questions
How should OCSD structure
the tipping fee for digestion
of food waste?
Should OCSD conduct a
feasibility study for digestion
of green waste?
Questions?