Post on 31-Jul-2020
Artificial Intelligence Approach to Improve HHW, Reuse, and EPRWesley Won| September 20, 2018
San Mateo County Household Hazardous Waste Program
• Introduction• A Brief History• Our Reuse Program• Reuse Data • EPR and PaintCare• Reuse and Smarter
Sorting
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Introduction
• San Mateo County– Located between San
Francisco and Santa Clara Counties
– 741 Square Miles– Population: 718,451– Households: 264,493– Based on 2010
Census– FY 2017-18: Over
9,000 residents used HHW Program
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San Mateo County HHW – Brief History
• First HHW event 1984– Collected ~1 ton (96 Barrels)
• Second HHW event 1986– Collected ~2.5 tons (250 Barrels)
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What were the types of HHW we received?
– Paints– Garden Chemicals
(Fertilizers/Pesticides) – Cleaners (Acid/Base)– Automotive Care
(Oils/Waxes/Fluids)– Solvents– Batteries– Fluorescent Lights
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During the early HHW events, all of these items went to disposal although many were recyclable and reusable!
Household Hazardous Waste What’s New!
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California Integrated Waste Management Act of 1989
• SMC required to promote waste management practices through:– Source Reduction– Recycling and Composting– Environmentally Safe transformation and safe land
disposal, at the County’s discretion
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Public Resources Code 40051 (1995)
• In order to reduce the amount of solid waste that must be disposed of by transformation and disposal, a requirement to maximize the use of all feasible:– source reduction, – recycling– composting options
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San Mateo County Reuse Program
• One Persons Trash is Another’s Treasure
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Paint Recycling with Early American Paint Old chemicals found at a vintage fair
San Mateo County Reuse Program
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San Mateo County Reuse Facility Inside the Reuse Facility
San Mateo County Reuse Program
• Intent of the SMC Reuse Program:– Distribute reusable household hazardous waste
products to the public (HSC 25218.12(a)).– The public is NOT restricted to only County residents.– The recipient may be a business. – As “product”, waste manifesting to document “cradle
to grave” management and end destination is NOT required.
– We have begun to work with Smarter Sorting (late 2017), who further extends our reuse program to Habitat for Humanity at a National level.
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San Mateo County Reuse Program
• At the time of segregation of HHW, items are evaluated to determine if the HHW is reusable.
• SMC has a Quality Assurance Plan as required per HSC 25218.1(o) to determine if the HHW qualifies as reuse.
• Once determined reuse, the product is no longer hazardous waste and no longer regulated as waste or recyclable HHW by DTSC.
• Product is given away to the a recipient. The recipient is to use the product consistent with the instructions on the label.
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San Mateo County Reuse Program
• Hurdles– Reuse facility is at a remote site in Redwood City: The
HHW and reuse facility should be at the same location.
– Demographics: The reuse program in Redwood City serves a better need to those residents.
– Transportation: Bill of Lading is necessary for transport to and from the remote reuse facility.
– Regulatory interpretation:• Waste generated from reuse facility not taken within 365
days needs a manifest and EPA ID for waste disposal.• By further distribution to Smarter Sorting allows us to not
generate waste from the remote facility13
San Mateo County Reuse Program
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San Mateo County Reuse Program
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San Mateo County Reuse Program
• Our Reuse Program outlived the facility!
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Reuse Data
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A Decade of Household Hazardous Waste
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0
200000
400000
600000
800000
1000000
1200000
FY 9-10 FY 10-11 FY 11-12 FY 12-13 FY 13-14 FY 14-15 FY 15-16 FY 16-17 FY 17-18
Total Waste
Reuse
Paint Care
Other Waste
Percentage of Reuse over the past decade
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2
3 3 3 3
4
3
2
4
0
1
2
3
4
5
FY 9-10 FY 10-11 FY 11-12 FY 12-13 FY 13-14 FY 14-15 FY 15-16 FY 16-17 FY 17-18
Reuse (% of total waste)
% of total waste
Categories of Reuse in the past Decade
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0
10
20
30
40
50
60
70
80
90
100
FY 9-10 FY 10-11 FY 11-12 FY 12-13 FY 13-14 FY 14-15 FY 15-16 FY 16-17 FY 17-18
oil based paint
latex paint
base
flammable
poisons
oil products
aerosols
acid
propane/compressed gas
oxidizers
antifreeze
Extended Producer Responsibility:PaintCare (2013)
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Comparison of Reuse to PaintCare (EPR)
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8%
30%33%
33%
35%
2% 3% 3% 3% 3%4% 3%
2% 4%
0%
5%
10%
15%
20%
25%
30%
35%
40%
FY 9-10 FY 10-11 FY 11-12 FY 12-13 FY 13-14 FY 14-15 FY 15-16 FY 16-17 FY 17-18
Reuse & Paint Care (% of Total Waste)
Paint Care
Reuse
Extended Producer Responsibility: PaintCare (Oil versus Latex Paint)
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0
10
20
30
40
50
60
70
80
90
100
FY 9-10 FY 10-11 FY 11-12 FY 12-13 FY 13-14 FY 14-15 FY 15-16 FY 16-17 FY 17-18
oil paint
latex paint
Reuse and Artificial Intelligence:Smarter Sorting (2018)
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Smarter Sorting Implementation
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Our Smarter Sorting Setup
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Implementation
• Scale and Cameras• Bar Code Scanner• Product Reuse Bins
• Labels and Shipping• Bill of Ladings• Data Reports
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Automated vs Manual Segregation
• Learns the categorization of reuse• Minimizes errors of co-mingling of incompatibles• Minimizes the demand on the chemist to ID
waste28
Local Distribution of Reuse
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• Minimal Outreach• Limited Hours:
– 1hr/week• Demographics• Location of Facility• Average about 25
recipients per week• Repeat Recipients
National Distribution of Reuse
• Reaches More Recipients Nationwide• Further Reduces Diversion of Waste to Reuse
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Data Management: Old Methods
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Data Management: Old Methods
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Data Management: New Methods
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Data Management: To Date
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• Partnered with Smarter Sorting in Late 2017• Fiscal Year 2017-18, we have diverted about
31,000 pounds of HHW to Reuse.• Of that 31,000 pounds;
– 85% went to San Mateo County Reuse Program– 15% went to Smarter Sorting
• We hope to increase reuse numbers and generate data to support EPR!
• Stay Tuned for What’s Next!
Conclusions
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Conclusion
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Come Visit Us!San Mateo County HHW Program
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Kaeo(Extra Help)
Lex
Curtis
Wes
Elizabeth
Aaron (Contractor)
Questions?
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Thank You!
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Presented By:Wesley Won, M.S.
Hazardous Materials Specialist IIISan Mateo County Environmental Health
wwon@smcgov.org650-655-6217