HomeMy WebLinkAboutWA State Ecology CROP Companion GuideWashington State CROP Publication xx-03-xxx
Recycling Contamination Reduction
Best Management Practices &
Resources Companion Guide
A supplement to Washington State’s Recycling
Contamination Reduction and Outreach Plan (CROP)
September 2020
Publication 20-07-031
Publication Information
This report is available on the Department of Ecology’s website at:
https://fortress.wa.gov/ecy/publications/SummaryPages/2007031.html.
Authors: Peter Guttchen, Heather Church, Steven Gimpel, Shannon Jones, Amber Smith, Diana
Wadley, and Paula Wesch.
2020 Washington State Contamination Reduction Outreach Plan
Contact Information
Publications Coordinator
Solid Waste Management Program
Washington State Department of Ecology
P.O. Box 47600
Olympia, WA 98504-7600
Phone: 360-407-6764
Washington State Department of Ecology – https://ecology.wa.gov
•Headquarters, Olympia 360-407-6000
•Northwest Regional Office, Bellevue 425-649-7000
•Southwest Regional Office, Olympia 360-407-6300
•Central Regional Office, Union Gap 509-575-2490
•Eastern Regional Office, Spokane 509-329-3400
Any use of product or firm names in this publication is for descriptive purposes only
and does not imply endorsement by the author or the Department of Ecology.
To request ADA accommodation for disabilities, or printed materials in a format for the visually
impaired, call the Ecology ADA Coordinator at 360-407-6831 or visit ecology.wa.gov/accessibility. People
with impaired hearing may call Washington Relay Service at 711. People with a speech disability may call
877-833-6341.
Recycling Contamination Reduction
Best Management Practices & Resources
Companion Guide
By
Peter Guttchen and Ecology’s Clean Stream Dream Team,
including Heather Church, Steven Gimpel, Shannon Jones,
Amber Smith, Diana Wadley, and Paula Wesch.
Solid Waste Management Program
Washington State Department of Ecology
Olympia, Washington
Publication 20-07-031 i September 2020
This page is purposely left blank.
Publication 20-07-031 ii September 2020
Table of Contents
Contamination Reduction Best Management Practices .......................................................... 1
Overview ............................................................................................................................. 1
Regional Strategies ............................................................................................................. 2
Communications & Outreach ............................................................................................. 2
Operations and Collection .................................................................................................. 9
Incentives and Pricing ....................................................................................................... 18
Policies and Mandates ...................................................................................................... 19
Measurement and Reporting ............................................................................................ 20
Glass Collection ................................................................................................................. 24
Resources ................................................................................................................................ 27
Ecology Resources............................................................................................................. 27
The Recycling Partnership Resources ............................................................................... 27
The Context for Contamination ........................................................................................ 28
Certificated Hauler Service Area Maps ............................................................................. 30
Gable Top - Aseptic Containers ......................................................................................... 31
Contracting for Processing of Recyclables ........................................................................ 31
Multi-Family ...................................................................................................................... 31
Cart Tagging ...................................................................................................................... 32
Single & Dual-Stream Collection ....................................................................................... 33
General Contamination Reduction ................................................................................... 33
Hauler Websites ................................................................................................................ 33
Glass .................................................................................................................................. 34
Measurement and Cost Analysis ...................................................................................... 34
Life Cycle Analysis ............................................................................................................. 34
Product Design for Recyclability ....................................................................................... 35
List of Figures ........................................................................................................................... 36
Publication 20-07-31 1 September 2020
Contamination Reduction
Best Management Practices
Overview
These Best Management Practices (BMPs) and resources provide strategies and references to
studies, toolkits, and websites to support local governments with their ongoing contamination
reduction goals. These BMPs and resources support Washington State’s Recycling
Contamination Reduction and Outreach Plan (CROP) and are a work in progress. The CROP,
BMPs and resources, and supporting documents are available in the Contamination Reduction
Resource Library. Ecology will continue to add additional resources and strategies. Currently,
the Communications and Outreach section is the most defined.
There are many different types of recycling collection programs, and each presents its own
unique challenges. Collection programs addressed in the BMPs include:
•Single-Family Residential
•Multi-Family Residential
•Commercial
•Drop box
•Glass
Reducing the amount of contamination in any program is a multi-step process involving many
different strategies. Five focus areas organize the contamination reduction strategies, which
local governments can piece together for their programs.
The strategic focus areas are:
Communications & Outreach
Operations & Collection
Policies & Mandates
Measurement & Reporting
Incentives & Pricing
Publication 20-07-31 2 September 2020
Regional Strategies
Now is the time to explore a regional recycling strategy to overcome common barriers to
successful, clean recycling programs. Working with nearby jurisdictions, or those within your
MRF-shed, can yield many shared benefits such as:
•Shared costs between jurisdictions for equipment, transportation, education and outreach,
operating costs, and capital for facilities;
•Increased volumes of recyclables that open new marketing possibilities;
•Cooperative marketing possibilities that could increase revenues; and
•Regional economic stimulus from the new collection and processing jobs.
Communications & Outreach
The following strategies relate to community engagement, education
and outreach, public relations, marketing, promotion, and behavior
change campaigns. These methods are crucial to reducing
contamination and increasing participation in recycling programs.
The Community-Based Social Marketing Approach
It’s fairly easy and inexpensive to print and distribute materials, maintain a website, or place
ads to increase knowledge and building support for recycling programs. While these are
important elements to include in your contamination reduction efforts, studies show that
information by itself has little effect on
behavior.
The Community-Based Social Marketing (CBSM)
approach is effective at fostering sustainable
behavior change. Its practical approach includes
five major steps outlined in this Quick Guide to
Community-Based Social Marketing from the
University of Pennsylvania.
Utilize existing resources, learn from other communities, and apply CBSM principals to your
contamination reduction efforts if possible. Start with a small project targeting a simple
behavior or one problematic material contaminating your recycling stream. You can split the
CBSM steps over time, or scale up to a comprehensive campaign with a higher budget.
Community-Based Social Marketing
resources:
• Doug McKenzie-Mohr’s website
• Tools for Change website
• Pacific Northwest Social
Marketing Association
Publication 20-07-31 3 September 2020
Key strategies for all recycling programs:
•Utilize consistent, clear, and harmonized
messaging throughout the community and
region.
•Update community, hauler, and Solid Waste
Program websites to reflect all changes to
recycling lists or collection methods.
o Include educational elements to clarify
what should and should not be
recycled. For clarity and overcoming
language barriers, use pictures and
graphics (green check for acceptable,
red x for unacceptable, etc.) rather
than words.
o Provide links to the most applicable
education and outreach materials from the hauler or service provider.
o Provide residents and businesses with a clear and comprehensive list of rates and
can size for recycling as well as garbage on the hauler and municipal websites.
•Have separate webpages for single-family, multi-family, commercial, and drop box recycling
programs. This helps direct people to the correct information and prevent confusion.
Include customized information and tools for multi-family and commercial property
managers.
•Recycle stream: The messaging should be as simple as possible and acknowledge that the
stream is only as clean as the worst performing contributor.
•Garbage stream: Overcoming the “landfill aversion” customers have requires work and
ongoing communication. Many residents feel guilty disposing of things in the garbage and
we need to “give people permission” to put dirty and non-recyclable items in the garbage.
For instance:
o Consumers can make decisions before items enter their home. The decision to
purchase is the moment to prevent materials from going to the landfill.
o Create a list of materials that should go to the landfill once they enter the home if
they want to dispose of them through home delivered services.
o Use “when it doubt, throw it out” in educational materials.
Use transcreation principles to
reach diverse populations
effectively. See the following
resources:
•Resource Recycling’s Do you
Speak Recycling article about
King County’s “Recicla más”
campaign.
•Waste Management’s
transcreated materials and
multicultural outreach tools
Publication 20-07-31 4 September 2020
•Work with service providers and/or realtors to create and send
informational packets to new homeowners or individuals who
switch service providers. Consider combining these with service
calendars.
o If utilizing a g-certificated hauler, per WAC 480-70-361, the
hauler must provide at least basic informational services,
including distribution of brochures.
•Invite property managers, maintenance staff, and residents to lead
education and outreach efforts in a way that is meaningful to the
targeted community.
•Organize and staff an interactive educational booth at diverse
community events.
•Identify and collaborate with community leaders to engage the
community on recycling issues. This is particularly effective for
minority and non-English speaking communities
•Utilize existing community-wide messaging channels such as
newsletters, media articles, mailers (combined with or in addition to
service calendars), and neighborhood-based social sites (like
Nextdoor).
•Promote the Washington Recycles hotline (1-800-RECYCLE) and
online tool (http://1800recycle.wa.gov/)
•Work with local partners (utility and cable companies, etc.) to put
flyers in monthly bills.
•Consider the effectiveness of direct mail pieces to reduce contamination. Specifically target
individuals and communities that need it, e.g. no access to the internet, etc.
•Promote single or multiple social media pages so interested residents can follow for regular
updates. Collaborate with like-minded organizations and community influencers to utilize
their social media base and extend the reach of posts.
•Inform residents how, where, and why to recycle using mailers, posters, signage, door-to-
door campaigns, bin tags, bill inserts, or on the bins.
•Develop marketing and outreach materials using pictures and short videos to show
recyclable and non-recyclable materials. Implement a multi-media (TV, radio, online and
print ads, outdoor signage, social media, Reddit pages, etc.) campaign to reach target
audiences and create a “brand” that normalizes proper recycling behaviors.
•Utilize Washington State’s Recycle Right Campaign materials and messaging to encourage
the collection of empty, clean, dry, and unbagged recyclable materials.
Figure 1: Samples of
Spokane's contamination
reduction campaign,
including postcards,
FAQs, and more are in
the local programs
section of the Resource
Library.
Publication 20-07-31 5 September 2020
•Have waste prevention and recycling education programs targeting schools and youth. Kids
can then teach their parents how to recycle properly.
Single-Family Residential Recycling
•Cart tagging gives residents/customers direct
feedback on their recycling practices by identifying
their bin contents. Spokane’s Feet on the Street cart
tagging program and Waste Management’s oops tags
are helpful resources.
•Targeted route mailers are a great option if haulers
identify specific routes with higher levels of
contamination.
•Consistently use blue recycling bins.
Multi-Family Residential Recycling
•Take inventory of all multi-family properties in your
jurisdiction. Find contact information for property
owners and reach out to them to build a relationship.
•Meet with property managers to assess the larger
scale and shared problems or concerns.
•If possible, provide onsite customized assistance to
the buildings that need it or would benefit the most
(larger properties and properties that have the largest
barriers to participation). The onsite assistance can
help identify ways to improve convenience for residents.
•Use metrics (such as service levels per week per
dwelling) to help guide proactive outreach.
•Have separate pages for multi-family residents and
property managers on your website. Include
frequently asked questions, educational materials,
and resources specific to multi-family recycling.
•Provide resources for other solid waste programs like
household hazardous waste collection, large bulky
item pick-up or drop-off, food waste, and drop-off
centers for recyclables not included in the multi-family
collection program.
See Resource Recycling’s
series on Multi-Family
Recycling.
•Multi-Family
Mythbusting
•The Path Toward
Progress
These resources from The
Recycling Partnership
provide steps and tools to
improve the quality of
your recycling program.
•Curbside Anti-
Contamination Kit
•Start at the Cart
The City of SeaTac
developed a
Contamination Plan
with Recology, their
local hauler, to do on-
site customer audits at
multi-family complexes.
Find more information
in the local program
section of the Resource
Library
Publication 20-07-31 6 September 2020
•Encourage property managers to include links
on their website to the appropriate solid waste
information.
•The turnover rate of residents in multi-family
housing is high, so consistent and ongoing
outreach to these communities is crucial.
•Create a moving checklist with common items
and simple instructions for how to dispose of or
recycle them. (e.g. mattresses, moving boxes,
microwaves, laptops, cleaning supplies, paint cans, furniture, clothing, and other bulky
items)
•Work with the service provider and MRF to develop, or modify their, tenant welcome
packet bags. Tenant welcome packet bags have many benefits:
o Hold all educational materials and prompts. Ensure residents have a simple, picture-
based flier outlining what can and cannot go into recycling collection bins.
o Distributed to all new tenants and the property owner manages the inventory.
o Display relevant local information, websites, and messaging on the sides of the bag
and build a “culture of recycling.”
o Can collect recyclables within individual units and transport to the recycling
container. Adding a strap to the bottom of the bag is helpful.
•If the property has community gatherings, try to attend at least one per year to engage with
tenants.
•Create surveys for both property managers and residents. Identify what barriers exist from
each perspective.
•Take well-planned steps to tailor your multi-
family program and outreach materials to the
diverse backgrounds, perspectives, and needs of
residents.
•Provide resources for starting a Green Team /
Property Recycling Champion. Help property
owners empower one or more vocal, motivated
tenants by designating them as a recycling
champion or point person. They can help
disseminate information to other residents and
communicate observed and shared concerns
with property managers.
Toronto’s 3Rs
Ambassadors program
enlists apartment residents
to champion recycling and
waste reduction with
neighbors, sparking
enthusiasm for recycling
across linguistic and
cultural boundaries.
Cascadia’s 2012
International Multi-family
Recycling Case Study
provides a range of
opportunities to improve
multi-family recycling
programs.
Publication 20-07-31 7 September 2020
•Develop a special multi-family advertising or behavior change campaign. Research the
barriers residents face and ensure you target those.
•Create a multi-family recycling team of engaged property and facility managers to meet,
research issues, and develop solutions.
Commercial Recycling
For unincorporated areas in Washington, recycling collection from residences is either a
monopoly granted to the hauler with the g-certificate for that area, or it may be contracted out
by the county. In contrast, recycling collection from commercial sources is an open market.
Incorporated areas have more options, but the general idea of a residential monopoly and free
market for commercial recycling services remains. Incorporated cities can default to the nearby
g-certificate, contract for services, or provide services themselves. Some cities choose to
provide recycling services to commercial customers or contract with a hauler for both
residential and commercial recycling. None of these options precludes the operation of
additional commercial recyclers within their city limits.
In both unincorporated and incorporated areas, the result is that while only one hauler serves
residents, there may be multiple recyclers serving the commercial sector.
At first glance, the multitude of haulers serving the commercial sector may seem counter-
intuitive to the message of uniformity, especially if their accepted materials lists differ from the
residential list. However, smaller commercial recyclers often exist because their profit is made
off the price they get for the recyclables they collect; not the fee charged (or embedded) to
collect it. It is important to allow these entities to compete with the larger haulers, many of
whom own their landfills. These smaller haulers offer specialized services that often prioritize
commodity quality and end-use ahead of the quantity of material they collect. Below is a list of
strategies to reduce recycling contamination of the commercial recycling stream and to
improve recycling services for commercial customers
•Include ALL haulers of key commercial recyclables on outreach materials. Example: on the
City of Issaquah commercial recycling webpage, they provide contact information for more
than just the City’s contracted hauler.
•The planning jurisdiction or service provider may perform walkthroughs for businesses to
address their specific needs and identify available services. This is especially helpful for
restaurants wanting help locating garbage, recycling, and compost services.
•Let businesses selling beverages in single-use cans or bottles in areas with curbside recycling
know they must provide recycling at official gatherings and sports events. Details are in
RCW 70.93.093.
Publication 20-07-31 8 September 2020
•Work with service providers on outreach materials and provide appropriate indoor and
outdoor signage to businesses. Encourage signage in common areas like a break or
lunchroom.
•Lunchroom programs should be consistent with household programs where possible.
•Check with janitorial staff to ensure their collection methods and understanding of accepted
items are in line with communications to staff using the program. Ensure janitorial staff is
not bagging recyclables (unless the commercial recycler wants it that way, for example, to
produce a dual-stream of bagged containers and loose papers).
•Advise businesses to add links to recycling information on their intranet sites.
•Reach out to commercial property managers to reach many commercial accounts at once.
•Work with service providers if they also provide outreach and assistance to commercial
recycling customers.
•Work with business organizations like a Chamber of Commerce to engage the business
community. Provide presentations or informational booths at their business-related
gatherings.
•Provide resources and assistance to businesses about starting a Green Team or appointing a
Recycling Champion. Often, there are staff who are vocal, active, and motivated around
recycling issues. They can become Recycling Champions, or a point person, to help
disseminate information to other employees and communicate tips and concerns.
•Share Best Management Practices tailored for specific types of businesses.
•Commercial recycling should be as similar as possible to residential service. If people learn
to recycle right at work, they tend to do so at home. Aim for similar materials and color
patterns for garbage (black or grey), recycling (blue), and compost (green).
•Develop specific commercial recycling communications and promotions. Add business
specific tips that outline the differences between residential and commercial information.
Acknowledge areas that may be particularly confusing for employees who work and live in
different jurisdictions with different rules or programs. In areas where commercial and
residential recycling are truly provided by only one hauler, combine the education and
promotion efforts.
Drop Box Recycling
•Provide staff or volunteers to assist residents
and provide education at drop box locations.
•Consider co-locating drop boxes through
partnerships with your community such as
Use The Recycling Partnership’s
Drop-Off Anti-Contamination Kit
to kick-start a better quality
material stream.
Publication 20-07-31 9 September 2020
fire stations, recreation centers, businesses, and schools. This may also help rural multi-
family households have access to recycling.
•Create signage with actual objects stuck to them. For paper items, a shadow box can
prevent damage from the rain. Although there are no studies to indicate that using actual
items works better than photos, Jefferson County and Lopez Solid Waste Disposal District
have found them to be effective. (see Figures 2 and 5).
Operations and Collection
These strategies address contamination at the infrastructure level
rather than consumer behavior. These include logistical solutions
like re-locating shared collection containers, designing mini
recycling centers, improving container design, and distributing
collection bins for individual resident use.
Key strategies for all recycling programs:
Drop box, commercial, and multi-family collection programs would benefit from the
implementation of the 5 C’s container strategies:
Figure 2: Lopez Solid Waste Disposal District uses actual
recyclables to create 3D signage at their drop box locations.
Publication 20-07-31 10 September 2020
Capacity
•Recycling needs sufficient capacity,
the same volume as the garbage
service, or 20-30 gallons per unit per
week. Or 1-1.5 cubic yards per every
10 units per week.
•Ensure proper garbage capacity as
well. Recycling should never be an
overflow for garbage.
Convenience
•Recycling and garbage need to be
equally convenient.
•All material will flow first into
whatever container is most
convenient. This either equals garbage in recycling or recycling in the garbage.
Clarity / Color
•It needs to be extremely easy for the average resident to tell what each container
is for. There should be consistency with single-family residential collection bins.
•Blue is typically associated with recycling.
•If children take out the garbage and recycling in a family, they need to be able to
understand the system.
•Consistent color schemes are a very useful tool. The more consistency there is, the better
and easier it is for residents to transition.
•Signage is the other method to share information. Pictures are worth 1,000
words. Commonly confused items can go on a poster board.
Container Lids
•There are collection container lids with special gaps that only allow targeted recyclables in,
and reduce large item contamination. There are specific lids for cardboard, glass, metal
cans, and plastic bottles and jugs.
•The impact is one company among others that offer these lid designs.
•Use a locking mechanism for the best effect.
•Mix and match lids for different programs and to address specific barriers.
Figure 3: Drop box, commercial, and multi-family collection
programs should consider the 4 C’s (Capacity, Convenience,
Color, and Clarity). from Cascadia Consulting – 2019 Role of
Recycling Policy and Code presentation
Publication 20-07-31 11 September 2020
Enforcement
Even when infrastructure is perfectly set up, some customers still will not properly recycle and
just want their materials to simply "disappear.” If efforts to change behavior fail, you may need
to say "No" to collection or to possibly increase costs.
•Educate, empower, and consider incentivizing front-line staff (route drivers and their
managers) to monitor for, and take action on, contamination. They could tag, educate, and
eventually penalize as necessary. Some haulers have dedicated staff for monitoring and
enforcement work.
•Leave contaminated bins with a tag and other outreach methods (phone call, direct mail) to
explain what the customer needs to do to correct the problem. Give leniency to first-time
offenders and customize your escalation steps for your local audience. If manually
collecting, some haulers leave just the contaminants in the recycle bins. The customers
quickly get the message and are more likely to change their behavior.
•Charge customers for bins that must be dumped like garbage. Again, it will be important to
exercise discretion based on a customer’s history. However, ultimately, to change their
behavior, there will need to be consequences for putting garbage in their recycling
containers.
•Consider removing bins from customers that continue to contaminate their recycling, but
set up pricing so it does not reduce their fees.
Other
•Leverage the collective power of multiple jurisdictions working within the same MRF-shed
to create more uniformity in materials collected to reduce confusion at the customer level.
Also, consider the materials that are processed and advocate for operational adjustments to
better capture new materials or capture materials better.
•Consider adding technical solutions to multi-stream collection/source separation. For
instance:
o Color-coded bags are conveniently sized to fit within household kitchen or utility
room cupboards to collect materials separately (such as the Optibag).
o Multi-compartment containers such as the Quattro Select System in Sweden, etc.
Single-Family Residential Recycling
In this report, single-family recycling focuses solely on single-family curbside collection services.
Therefore, the terms single-family and curbside are interchangeable.
Publication 20-07-31 12 September 2020
Considerations by Collection Service Type
There are unique challenges that come with each single-family recycling collection type.
Collection service types vary between Commingled, Dual-Stream, and Source Separated. It is
important to identify which collection service types and their associated challenges you are
facing. See considerations for each service type below.
Figure 4: ZeroWaste Washington survey of residential recycling collection programs by waste
generation area or WGA. See glossary for a definition of a WGA.
Commingled Collection
Also known as single stream or mixed recycling. In this system, residents place all recyclables
into one bin at the curb. Commingled recycling – promoted by haulers across to state to reduce
costs – makes it easier for residential customers to recycle because they put all materials in one
container. This can result in increased recycling collection rates. However, collecting more
materials can also cause a rise in contamination levels. Material cross contamination and
residential confusion regarding accepted materials contribute to the problem.
Considerations for commingled collection:
•Clarity of accepted materials list, and harmonization of accepted materials within the region
or MRF-shed.
•Material cross-contamination happens frequently. Whether from liquids and food-soiled
materials spilling onto other marketable materials or from clean materials making their way
into the wrong bale. The latter commonly occurs with flat lightweight objects that act like
paper in the MRF sorting process, or when glass shatters and embeds itself into other
materials like paper fibers.
Publication 20-07-31 13 September 2020
•Carefully compare the pros and cons of all your collection options when deciding whether
to include glass in the mix. Glass poses unique safety and cross-contamination issues when
collected commingled. See the Glass Recycling section for more information.
•Ecology’s commingled collection webpage has a more comprehensive list of benefits and
limitations of commingled residential collection.
Dual-Stream Collection
In this system, residents use two bins for collecting
materials for curbside recycling. In one version,
residents place all paper and fiber products in one
bin and plastics, metals, and glass in the other. This
collection system lowers contamination of the
paper stream from liquids and other materials. In
another version, residents put mixed recyclables in
one and keep glass separate in the second
container. This prevents broken glass shards from
contaminating other materials, especially paper
fibers.
Mill Valley, California implemented another type of dual-stream option in 2018. Under this
system, residents are given two recycling bins – one for mixed paper and cardboard and one for
rigid plastic containers, metal cans, and glass bottles and jars. These carts are collected every
other week – fiber one week and containers the next. This system does require purchasing
more carts. However, it can be implemented using the same number of collection trucks and
staff and may result in much cleaner material.
Considerations for Dual-Stream collection:
•Material cross-contamination is still possible
•Increased hauling and infrastructure costs
•If collection is done manually, workers are at greater risk of being injured. However, it also
allows for closer examination of materials and rejection of contamination.
•Only effective if the MRF has the technology to handle this system
Source Separated Collection
In this system, residents place materials into multiple bins by material type. The specifics of
material separation varies by jurisdiction and depends on preferences and local requirements.
Additionally, the ways paper, metal, glass, and plastics are separated varies by jurisdiction.
These materials may be broken into more specific types. For instance, mixed paper versus
newspaper and scrap paper. Plastics can be mixed, 1s and 2s, bottles and jugs only, and 3-7
Read about Whatcom
County’s three-bin collection
system and its impressively
low 1% contamination rate.
Here's why most Whatcom
recycling isn't ending up in
landfills, despite China's ban.
Publication 20-07-31 14 September 2020
mixed plastics. Typically, transfer stations and drop off/drop box locations use this method
more than curbside. It requires residents to separate and place recyclable materials into
multiple bins holding very specific materials.
Considerations for Source Separated collection:
•Contamination via dumping in unattended drop boxes
•If collection is done manually, workers are at greater risk of being injured
•Source separated curbside programs cost more for hauling/infrastructure
•Only effective if the MRF has the technology to handle this system
Other Curbside Strategies
•Refine the accepted materials lists to reflect what is economically and environmentally
viable for your region/MRF-shed. This may require removing items from your accepted lists
such as glass, aseptic containers, or difficult to market plastics (e.g. 3-7s). Collecting these
materials separately in a drop box system is an option if there is a viable end market or
beneficial reuse options.
•Standardize cart colors within your MRF-shed to reduce residential confusion about which
bins are for recycling and which are for garbage.
•Utilize hauler cameras and technology. Some haulers already have technology such as truck
cameras and routing software allowing for easy reporting of contaminated loads. Use these
systems to identify customers with contaminated loads and follow-up with those customers
with additional information or possible corrective actions.
•Consider switching to a dual-stream collection service. If contamination is most prevalent in
paper stream (from food/liquid, plastics, or glass) and your MRF has the technology to
process this material separately, the quality of the paper collected for recycling could
dramatically improve. That said, this is a discussion heavily influenced by the current
infrastructure your haulers and MRFs have in place and the feasibility of replacing that
infrastructure with dual-stream compatible technology.
Multi-Family Residential Recycling
Multi-family recycling often requires more effort
than recycling in a single-family setting. The barriers
to resident participation are much more complex
than a simple matter of convenience. Many
apartments and other multi-family settings lack basic
recycling infrastructure and may not be able to
Waste Management’s
2017 Multi-Family Study
details best management
practices for infrastructure
improvements, property
management engagement,
and resident education.
Publication 20-07-31 15 September 2020
develop an effective program. Addressing these issues requires a systematic approach.
•Identify how permitting of multi-family properties works in your area, if there are specific
requirements related to recycling, and how they are defined for solid waste.
•Clarify how multi-family properties receive service. Determine if they are on commercial or
residential trucks/routes if garbage and recycling are in the same category, and what kind of
containers are used for collection.
•Identify how tenants are charged for garbage and recycling services. Is it included in their
rent or are they responsible for some or all of the costs?
•Take an inventory of all multi-family units/complexes and identify which ones have and do
not have adequate recycling and garbage infrastructure. Reach out to determine which
ones are willing to accept infrastructure improvements and technical assistance.
•Providing multi-family residents with convenient access to solid waste containers is perhaps
the most significant improvement in multi-family recycling. This was demonstrated by
DiGiacomo et al (Convenience improves composting and recycling rates in high-density
residential buildings, 2017).
•Ensure all recycling containers are properly marked and are located near a garbage
container.
•Using the same size, and if possible the same types, of containers to collect both garbage
and recycling helps improve participation and decrease contamination as they are either
equally convenient (or inconvenient if they are large and hard to dump into).
•Using smaller, rather than larger, containers improves recycling convenience for multi-
family residents. Even a 2-cubic yard container can be hard to use. It requires some level of
strength and coordination to open a heavy lid far enough to be able to dump material inside
with the other hand.
•As residents approach an enclosure or solid waste area, the most accessible container
should be the garbage one. This helps protect the recycling container from contamination.
People that want to quickly get rid of random items will place them in the garbage. People
that take the time to sort out their recyclables inside their apartment are motivated enough
to walk a couple more steps to the recycling container.
•Provide residents with a dedicated container or bag to collect recyclables within individual
units and to use to transport materials to central collection areas. Some multi-family
managers require residents to use bags.
•Consider whether there is a need for a source-separated stream like cardboard. These can
be easier to label and can be adapted to ensure only certain sized materials can be placed in
them.
Publication 20-07-31 16 September 2020
•Depending on the circumstances, it may be less costly and labor intensive to educate
residents on other places they can recycle such as drop box sites.
•Depending on the hauling service, multi-family recycling collection may be done on the
same route as curbside residential service, on a separate service contract overseen by the
jurisdiction, on a private contract managed by the multi-family housing complex, or not
available at all except at drop box locations. Because of these and other variables and
complexities, background research and evaluation is essential.
Commercial Recycling
•Though an open market, local governments may still influence operations and collection:
o Incorporated areas: Greater control over the commercial sector is possible in
incorporated areas compared to unincorporated areas because the city/town may
either contract for service or participate in the open market with their trucks and
employees. This can provide the municipality more control and give them the ability
to direct collection methods (such as dual-stream vs. single-stream), set the
accepted materials list, and reject loads. However, this additional control has
drawbacks as well. One drawback is the additional work on the part of the
municipality to oversee their portion of the commercial recycling system. Another is
the potential to push other recyclers out of business, especially if recycling fees are
embedded within garbage rates (which remain fully under municipal control). Thus,
municipalities might consider removing themselves from such direct participation in
commercial recycling.
o Unincorporated areas: Provide the residential accepted items list to commercial
recycling providers and/or discuss with them shared goals and priority items for
recycling in your jurisdiction.
To learn more about these and related topics, visit the Municipal Research and Services
Center’s solid waste, recycling, and disposal resources page. It contains information
about solid waste collection and disposal, legal requirements, solid waste management plans,
collection options, and examples of local policies, procedures, and contracts.
•If the business is interested, determine if there are opportunities to collect a unique large
waste stream for recycling to save on disposal costs. As an example, packaging and printing
companies with adequate space can collect special grade paper separately. Check with your
service provider and MRF before starting any new programs with new material streams.
•Encourage business or commercial property owners to request a service and pricing review
with their haulers. Occasionally changing service frequency can reduce collection costs.
Publication 20-07-31 17 September 2020
Drop Box Recycling
•Use volunteers for monitoring of unattended
drop boxes. Volunteers can spend an hour or
two a week pulling out obvious contaminants,
while also providing basic recycling education to
residents as they drop off material.
•Do not leave your site open 24/7. Limit the hours
and lock the site.
•Use a container with modified openings or lids
with special gaps that only allow targeted
recyclables in, and reduce large item
contamination. There are specific lids for
cardboard, comingle, and containers. Lock
collection boxes further reduce the potential for
contamination. There are specific lids for
cardboard, comingle, and containers. There are
also containers for plastic, metal, or glass
containers with narrow openings to help reduce
contamination and illegal dumping. An example is
in Figure 7 below.
•Dual-stream and multi-stream collection can result in lower levels of contamination and
better quality, higher value material that is more marketable for resale by MRFs.
•Consider locating reuse areas near drop boxes.
•Harmonize your material list with curbside programs. This means working with your hauler
and recycling partners to use the same information on the containers, at the sites, etc.
•Invest in attractive, easily understandable photos or images of acceptable items. You can
also use actual items on your signs.
•Select signage that is durable, weather and UV resistant, and preferably made with post-
consumer recycled content materials.
•Ensure all recycling containers are properly marked and are located near a garbage
container. Ideally, any self-haul garbage locations like a transfer station will have recycling
drop boxes located nearby.
•Ecology, counties, and cities could work with major retail chains to encourage them to host
drop boxes for common and valuable recyclable materials. The city or county could provide
this service free or it could potentially be a revenue source for retailers. Consider other
convenient locations such as schools, libraries, parks, etc.
Figure 5: Jefferson County drobox signage
includes actual examples of acceptable and
unacceptable materials. Find more
information in the local programs section
of the Resource Library.
Publication 20-07-31 18 September 2020
Incentives and Pricing
Implementation of economic incentives like variable fees or financial
rewards can be effective strategies for residents or property managers to
reduce contamination.
Single-Family Residential Recycling
•If contamination is a recurring issue with a customer, work with your service provider, and
consider the following enforcement options:
o not collecting the cart and charging landfill costs
o fine resident/customer if contamination persists
o discontinue recycling service
Multi-Family Residential Recycling
•Property owners or managers should request a service and pricing review with their hauler
and ask how changing service frequency or container size impacts price.
•It’s important to have a better understanding of the methods used by property managers to
calculate how much apartment residents pay for solid waste. That understanding could help
figure out how apartment residents could directly benefit from the pricing incentives for
waste prevention and recycling. In single-family the benefit is very direct. However, that is
not the case in multi-family, where the solid waste costs of an individual household are the
same regardless of how much garbage they produce.
Commercial Recycling
•Incorporated areas:
o Avoid the use of embedded recycling fees. This creates an uneven playing field for
competitors and perpetuates the idea that recycling is free.
o Perform audits on commercial bins and charge for overly contaminated bins,
especially if they are dumped as garbage.
o Use caution if coupling volumes of garbage and recycling, as lower-priced recycling
incentivizes “wishful recycling” and can increase contamination Commercial entities
are also less likely to invest in protecting “free” or lower-cost bins from outside
contamination from passers-by or illegal dumping. This protection can often be as
simple as placement in an enclosure, but can also include having locking bins or
keeping bins inside until collection day.
Publication 20-07-31 19 September 2020
•Work with business organizations or the Chamber of Commerce to develop a business
recognition program for businesses that are doing a good job of recycling. Use monetary or
promotional rewards.
•Be very careful with any program that incentivizes higher quantities of recyclables. This can
increase contamination and reduce overall material quality.
Drop Box Recycling
Drop box recycling could include a fee. Charging for recycling at drop boxes could offer an
opportunity to discuss the value of recycling with councils, etc. A fee would help pay for
contamination reduction strategies like local sorting, monitoring, etc.
Policies and Mandates
There are several ways that specific jurisdictional policies or ordinances can
improve recycling systems and contamination levels. This section provides
some common examples.
Key strategies for all recycling programs:
•Minimum service level ordinances can influence the
amount of material that is recycled, and the types
and levels of contamination.
•Solid waste is generally the last thing considered
when designing property layouts. Building codes and
the permitting process can address recycling issues
such as proper container enclosure specifications
and adequate space for services. Service providers
should be involved in setting these specifications.
•Similar to ensuring fire truck spacing, properties should ensure their service location has
easy access and capacity for all needed (or wanted) solid waste and recycling services.
•Plan for the future. If you are planning to expand your program to include additional
recycling or organics, think about the space needs for all of these new services.
•If you find it difficult to meaningfully reduce recycling contamination in specific
geographical areas, work with your hauler to discontinue to limit recycling services in those
areas to preserve the system as a whole.
•Specify the use of contamination-reducing containers. These could include containers with
openings or lids with special gaps that only allow targeted recyclables in, and reduce large
item contamination. There are specific lids for cardboard, comingle, and containers. There
In 2006, Thurston County
adopted a minimum
service ordinance that
specifics what materials
are required for recycling
collection in the county.
Publication 20-07-31 20 September 2020
are also containers for plastic, metal, or glass containers with narrow opening to help
reduce contamination and illegal dumping. An example is in Figure 7 below.
Single-Family Residential Recycling
Multi-Family Residential Recycling
Commercial Recycling
Drop box Recycling
•Ecology is identifying additional strategies to include in these sections. Please share your
ideas and resources.
Measurement and Reporting
Strategies in this section cover the collecting and sharing of data on the
levels, types, and sources of recycling contamination.
Key strategies for all
recycling programs:
Purpose and goals
There are many different methods and metrics for
measuring recycling contamination. Before gathering any
data, it is important to be clear about the purpose and
goals of your measurement program. Define who will use
the data, for what purposes, and how to share it. A
recycling contamination measurement and reporting
program can have many goals including:
•Educating residents and businesses about how to recycle right and what materials don’t
belong in their bins.
•Identifying the most common contaminants to help develop targeted outreach campaigns.
•Measuring the overall effectiveness of a contamination reduction program over time.
•Negotiating a recycling collection and/or processing contract to set service rates.
•Identifying the most hazardous contaminants to reduce the risk to collection and processing
staff.
If you are clear about your purpose and how you intend to use and share the data, you can then
choose the right metrics, assessment, monitoring, and reporting tools to achieve your goals.
The Recycling
Partnership’s Municipal
Measurement Program
offers free software to
government agencies
they can use to create
a database to track key
recycling program
metrics.
Publication 20-07-31 21 September 2020
Metrics
It’s important to choose the right metrics to achieve your goals. Below are some of the more
common metrics to measure the cost and benefits of recycling and the impacts of recycling
contamination:
•Weight – Typically used for waste and recycling characterization studies, to determine the
rates charged by MRFs for processing services, and by counties for disposal.
•Volume – There are many different ways to use this metric. Most customers pay for their
garbage and recycling service by volume. So collecting this kind of data helps determine the
impact of recycling right on the rates a customer pays for collection. Also, in some cases, it
is too expensive or not feasible to do a weight-based audit. In these cases, measuring
contamination by volume may make sense.
•Number and/or types of items observed – Metrics typically used for visual audits of carts,
bins, and drop boxes.
•Sustainability metrics – these metrics are calculated in many ways based on the data
gathered on the quantities and types of materials collected for recycling, and where and
how they are processed, recycled, or disposed of. These metrics could include greenhouse
gas emission impacts, jobs created, and public health and social equity measures. Tools to
calculate these metrics include Life Cycle Analysis (LCA) and the EPA’s WARM model. More
information on LCA, including recent LCA studies on specific products and materials, is on
the Oregon Department of Environmental Quality’s website. Other resources on ways to
use sustainability metrics to measure the environmental and other costs and benefits of
recycling can be found in Susan Robinson’s 2017 presentation to Ecology on Using Lifecycle
Thinking for Strategic Goal Setting, and David Allaway’s 2020 Rethinking Recycling
presentation.
Assessments and Monitoring Options
The backbone of your data collection program is assessments. Conducting assessments
provides you with baseline levels and types of contamination in your recycling stream so you
can measure the effectiveness of your contamination reduction strategies. Ongoing monitoring
of your collection programs and providing regular feedback to customers helps ensure the
impact of all your contamination reduction efforts are sustained over the long-term.
Whatever tools you use, it is important to be consistent in the way you use them. For example,
if you are gathering baseline recycling contamination data, make sure you document the
process and the metrics you used to gather the data. That allows you to replicate the process to
measure changes over time.
Publication 20-07-31 22 September 2020
Some assessment and monitoring options to consider include:
•Recycling Characterization Studies: These
describe how much and what kinds of materials
are in your recycling stream, including the levels
and types of recycling contamination. Local
examples of recycling characterization studies for
the City of Seattle, and Clark and Kitsap Counties
are located in the Local Resources section of the
Resource Library.
•Visual Assessments and Lid-Lift Audits: These are an easy way for staff to see what material
is in recycling containers and hauled loads. Please note that visual methods can be
imprecise and hard to replicate later. The use of a visual method requires some practice and
training beforehand, and careful documentation of the procedures used so it can be
repeated later (assuming it’s used for a before-and-after analysis). Reports on these types
of assessments done in Clark and King Counties and the City of Olympia are in the Local
Resources section of the Resource Library.
Note – privacy and constitutional issues have been raised about using this method in
Washington State. It is important to check with your jurisdiction’s legal counsel before
using these types of assessments. According to the Washington Refuse and Recycling
Association: “In Washington, these programs operate under the high standard of privacy set
by Art. I §7 of the Washington Constitution. State v. Boland (1990), found that privacy right
extends to garbage placed out at the curb and other cases have elaborated on that right
over time” They also note that a “superior court found that enforcement of a Seattle cart-
inspection ordinance violated the constitution in Bonesteel v. City of Seattle (2016).”
•Technology: Truck cameras, in-container cameras, and routing software allow for easy
reporting of contaminated loads and identifying specific customers or routes for education
or possible corrective action.
•RFID tags: If possible, purchase carts and containers with RFID tags or add them to existing
collection bins. They can attach addresses to carts for efficient monitoring and follow-up
with customers to reduce contamination. The tags can also be used to track and manage
assets, measure set-out and participation rates, and increase the efficiency of collection
routes. Waukesha County in Wisconsin implemented another similar approach. They
developed their own ArcGIS-based program to identify and automatically send out OOPs
tags and educational materials to customers who placed “non-conforming” materials in
their carts.
•Surveys: Conduct surveys with the public, staff, your hauler, and the MRF that processes
your material.
•Truck and Trunk Audits: Survey vehicles before they drop off their recyclables.
A Sorting Manual for
Recycling Characterization
studies prepared by Green
Solutions can be found in the
Resource Library.
Publication 20-07-31 23 September 2020
Accepted Materials in Your MRF-shed
Assessments go hand-in-hand with your accepted recyclables list. Contamination partly comes
from public confusion regarding what is actually accepted for recycling. It also comes from a
lack of consistency between what people think can be recycled, what they want to recycle, and
what is actually recyclable based on their region’s hauling infrastructure, MRF technology and
infrastructure, and market availability.
•Confirm that the materials on your accepted recycling materials list are actually being
recycled by your MRF. Learn more about the end markets for your materials through
conversations with your hauler, MRF, and Ecology representative.
•If you plan to collect materials beyond the priority items discussed in The Harmonization
Choir section, consult Ecology’s Best Management Practices Guide and the Resource
Library.
Understand Your Markets
Developing a relationship with your hauler and MRF
allows you to find out what markets are available in
your area and your region.
•Contact the MRF that your material goes to and ask
questions about what is acceptable, not acceptable,
etc.
•For material that your MRF does not accept, ask if they know any other MRFs in the region
that do accept those materials. This helps develop an overall marketing strategy. Contact
information for the primary MRFs in the state is in the MRF-shed sortable spreadsheet.
•Don’t forget about the small recycling operations in your area, such as the scrap metal
haulers, paper collectors, etc. They also have information on what markets are available in
your region.
Single-Family Residential Recycling
Multi-Family Residential Recycling
Drop box Recycling
Commercial Recycling
•Ecology is identifying additional strategies to include in these sections. Please share your
ideas and resources.
The Recycling Partnership
has a MRF Survey to help
you ask the right questions
when talking to your MRF.
Publication 20-07-31 24 September 2020
Glass Collection
This section includes high-level recommendations for glass collection. This
includes the type of data to gather when considering glass collection, and criteria
to help decide if and how to include glass in your recycling programs.
Before collecting glass, it’s important to weigh the economic and environmental
benefits and impacts against the costs. Have discussions with your hauler, MRF,
and end markets to decide if glass is a viable option for your community.
Use the following questions to guide decision-making:
•Is there a viable end market for this material?
o Do end markets have the capacity to accept the amount of material generated by
your community?
o What are the restrictions and specifications for glass (e.g. must be source
separated)?
Is this end market using the material to transform and/or remanufacture it into
usable or marketable materials rather than disposal? Keep in mind, that Ecology
does not define the use of glass alternative daily cover as recycling. Alternative daily
cover (ADC) means to cover material other than earthen material placed on the
surface of the active face of a municipal solid waste landfill at the end of each
operating day to control vectors, fires, odors, blowing litter, and scavenging.
•Does the total cost of collection, processing,
transportation to the end market, and end
market acceptance allow for a net profit? If
there is a cost, is it less than disposing of
glass?
•Is the proper infrastructure in place to
collect the glass in a way that aligns with the
end market’s specifications? What will it
cost to install this infrastructure and to
promote the program?
•What are the pros and cons of collecting
glass in different ways (commingled, dual-
stream, or drop box)?
•What are your biggest barriers to glass
recycling? These may include market
conditions, haulers not accepting glass,
Figure 6: Glass collected in commingled recycling
programs can end up at paper mills and seriously
damage papermaking equipment. This 2009
photo shows glass that was in a paper bale and
rejected in the pulping process at NORPAC.
Publication 20-07-31 25 September 2020
tipping fee, and transport to glass processor is greater than landfill tipping fees,
contamination, MRF not equipped to clean glass, etc.
If the answers to these questions demonstrate that there is a viable end market to recycle glass
at a net profit, or a cost, you’ve decided is reasonable compared to other glass management
options, then your community should continue to explore the feasibility of collecting glass for
recycling.
If the answers to these questions demonstrate there are no viable markets and/or the cost is
too high to collect the glass for recycling, consult NERC’s Glass Recovery Hierarchy for options
other than disposal.
Additionally, consider the following questions:
•Could resources spent on glass collection be better used to recycle easier and more valuable
materials like cardboard?
•What alternatives to traditional glass
recycling are available? (E.g. glass
manufacturer, fiberglass plant, roadbed
aggregate, alternative daily cover,
crushed landscaping substrate, sandblast
medium).
•Have you explored opportunities for
regional engagement (coordination,
partnerships, hub & spoke model) to
improve glass recycling?
Possible reasons to keep
glass in recycling programs:
•Resident satisfaction
•Divert tonnage from landfill
•Environmental/sustainability goals
•Prevention of illegal dumping
Questions to ask your MRF:
•What type of processing system do you operate for glass? (Single-stream, color-separated,
dual-stream, etc.)
•What is the final destination of your collected glass?
Figure 7: City of Olympia removed glass from their
commingled residential recycling program in 2020 to
reduce cross-contamination of the others materials they
collect. They now provide glass recycling at drop off sites
around the city.
Publication 20-07-31 26 September 2020
•Has there been a constant outlet for glass products to alternative processors and end-
users?
•What determines where you sell glass?
•Does your system have glass-cleaning equipment?
Glass Recycling and Reuse Resources
The Northeast Recycling Council (NERC) compiled a robust set of resources on glass recycling.
Go to their resource page and search for glass. NERC also held a two-day Glass Forum in
September 2018. The presentations and recordings from the forum are also available on their
website.
The Glass Recycling Institute offers resources and technical assistance to communities
interested in recycling more glass. In this presentation, Scott Defife, the president of the Glass
Packaging Institute, provides an overview of the glass recycling industry in the U.S. He also
provides a comprehensive list of reasons why drop off programs work in communities where
MRFs don’t or won’t accept glass.
Strategic Materials is the largest recycler of glass in the U.S. and operates a large facility in
Seattle. In this presentation, Laura Hennemann, the VP for Marketing and Communications for
Strategic Materials, provides an overview of their operations across the country. She lists what
she says are the myths about glass,
including that broken or mixed colored
glass can’t be recycled and that glass
contaminates other recyclables.
According to her, “Single-stream
contaminates every material in the bin.
Proper layout, sequence, and processing
at the MRF maximize value for all
streams.”
Refresh Glass – Refresh Glass upcycles
wine bottles into beautiful glassware
and other products used in restaurants
around the world. In this presentation,
Ray DelMuro, the founder of Refresh
Glass profiles his company, the new
products he’s launching soon. Figure 8: Refresh Glass is on a mission to rescue 10 million
bottles from disposal by transforming wine bottles into
exquisite glassware. As of August 6, 2020, they’ve rescued
1,613,747 bottles and counting.
Publication 20-07-31 27 September 2020
Resources
Ecology Resources
Ecology’s Recycle Right campaign and Toolkit – a statewide campaign to reduce contamination
and increase the value of the material collected for recycling in Washington State.
https://ecology.wa.gov/recycleright#:~:text=Recycling%20Right%20Matters,recyclables%20in%
20the%20recycling%20bin.&text=They%20can%20also%20contaminate%20other,support%20lo
cal%20jobs%20and%20businesses.
The Recycle Right toolkit includes free customizable outreach materials for local governments
and community partners in both English and Spanish - https://ecology.wa.gov/Waste-
Toxics/Reducing-recycling-waste/Recycle-Right/Toolkit-request-form
•2018 – Best Management Practices: Commingled Residential Recycling – updated
BMPs to address the impacts of export bans and the high levels of recycling
contamination
https://ecology.wa.gov/DOE/files/ed/ed59ba23-7f4c-4053-a47b-5abb644ad228.pdf
•2016 - Northwest Region Report – Optimizing the Commingled Residential Curbside
Recycling Systems in Northwest Washington
https://fortress.wa.gov/ecy/publications/documents/1607028.pdf
•2011 – Best Management Practices Guides for Local Governments
What to include in Your Residential Commingled Recycling Collection Program
https://fortress.wa.gov/ecy/publications/documents/1107026.pdf
•2012 – Public Outreach for Your Residential Commingled Recycling Collection Program
https://fortress.wa.gov/ecy/publications/summarypages/1207061.html
•2010 - Beyond the Curb – Tracking the Commingled Residential Recyclables from
Southwest WA
https://fortress.wa.gov/ecy/publications/summarypages/1007009.html
The Recycling Partnership Resources
•Anti-Contamination Toolkit & Campaign Builder
Free, step-by-step planning guide with lots of links to other resources -
https://recyclingpartnership.org/contamination-kit/
The toolkit includes:
Publication 20-07-31 28 September 2020
Contamination fighting readiness assessment tool
Artwork – downloadable design files for anti-contamination tools
MRF & Hauler contract considerations focused on contamination
•Worksheets to work with your MRF, haulers, and other stakeholders to
develop a contamination reduction plan
Pro Tips – advice form communities that have used the toolkit
•MRF survey tool – to identify issues and goal
•MRF tracking form to track contamination metrics
•Standard Operation Procedures – lays out the roles, responsibilities, timeline,
and tracking for your anti-contamination plan
•Training video for drivers and enforcement staff to provide curbside
feedback
•Set out video – overview of the difference between set-out rate and
participation rate and how to calculate
•Tally sheet to track tagging progress
•Campaign Builder - free, easy-to-customize anti-contamination materials including
OOPs tags, top-issue mailers, and annual recycling program info cards
https://recyclingpartnership.org/pdf-builder-login/
•Webinar on how to use the toolkit – NERC – TRP -Massachusetts DEP – April 2018
https://nerc.org/documents/Implementing%20the%20Recycling%20IQ%20Toolkit%
20to%20Reduce%20Contamination%20of%20Residential%20Recycling_%20Lessons
%20Learned%20.mp4
•Municipal Measurement Program (MMP) -
https://www.municipalmeasurement.com/
The MMP provides municipalities with free access to a centralized database to
measure program performance, benchmark results, and access tools and resources
to improve curbside recycling programs.
•Best Management Practices for MRF contracting
file:///C:/Users/pgut461/Downloads/RecyclingPartnership-Community-MRF-
Contracts-6.24.20%20(1).pdf
The Context for Contamination
•From Green Fence to Red Alert – A China Timeline – Resource Recycling - regularly
updated
https://resource-recycling.com/recycling/2018/02/13/green-fence-red-alert-china-
timeline/
Publication 20-07-31 29 September 2020
•Why China Stopped Buying U.S. Recycling – CNBC – March 1, 2020
https://www.youtube.com/watch?v=YYjkdYAUa0c&feature=youtu.be
•Recycling’s dirty truths exposed - Seattle Times - April, 26, 2020
https://www.seattletimes.com/pacific-nw-magazine/with-recyclings-dirty-truths-
exposed-washington-works-toward-a-cleaner-more-sustainable-
system/#:~:text=Local%20News-
,With%20recycling's%20dirty%20truths%20exposed%2C%20Washington%20works,a
%20cleaner%2C%20more%20sustainable%20system&text=IN%202017%2C%20ABO
UT%20three%2Dquarters,tubs%20%E2%80%94%20was%20shipped%20to%20China.
o Backstory for Times article – I’ve cleaned up my act, but the system
needs to be cleaned up too - https://www.seattletimes.com/pacific-nw-
magazine/the-backstory-ive-cleaned-up-my-act-but-the-system-needs-
to-be-cleaned-up-too/
•In My Opinion – Fix the Broken System – Plastics Recycling News – Feb. 2, 2017,
https://resource-recycling.com/plastics/2018/02/20/opinion-fix-broken-system/
•NWRA – issue brief on China Sword -
https://cdn.ymaws.com/sites/wasterecycling.site-
ym.com/resource/resmgr/files/issue_brief/China's_Changing_Policies_on.pdf
•MRSC – Recycling in Crisis – WA’s response - http://mrsc.org/Home/Stay-
Informed/MRSC-Insight/November-2018/A-Recycling-Crisis-in-Washington.aspx
•Is this the End of Recycling? – The Atlantic- March 6, 2019
https://www.theatlantic.com/technology/archive/2019/03/china-has-stopped-
accepting-our-trash/584131/
•Recycling in the U.S. is Broken. How do we fix it? - Earth Institute – March 13, 2020
https://blogs.ei.columbia.edu/2020/03/13/fix-recycling-
america/#:~:text=Photo%3A%20USEPA-
,Recycling%20in%20the%20U.S.%20is%20broken.,actually%20end%20up%20being%
20recycled.
•Monopoly and the U.S. Waste Knot – ILSR - December 4, 2018 -
https://ilsr.org/monopoly-and-the-us-waste-knot/
Publication 20-07-31 30 September 2020
•The era of easy recycling may be coming to an end – FiveThirtyEight - January 10,
2019, https://fivethirtyeight.com/features/the-era-of-easy-recycling-may-be-
coming-to-an-end/
•The Conflict of Interest that is Killing Recycling – NY Times – August 15, 2018 -
https://www.nytimes.com/2018/08/15/opinion/fixes-recycling-labeling-
landfills.html
•All the ways recycling is broken – and how to fix them – Fast Company – April 4,
2019 - https://www.fastcompany.com/90321566/all-the-ways-recycling-is-broken-
and-how-to-fix-them
•Single Stream Recycling: Explaining the Waste Knot– ILSR – August 29, 2018,
https://medium.com/@ILSR/single-stream-recycling-explaining-the-waste-knot-
16bdf8c47e22
•Single-Use Plastics – A roadmap for Sustainability – UNEP- June, 5, 2018
https://www.unenvironment.org/resources/report/single-use-plastics-roadmap-
sustainability
•Americans believe strongly in recycling – TRP – June 17, 2020
https://recyclingpartnership.org/americans-strongly-believe-in-recycling/
•Derek Ruckman – Presentation on Recology’s Zero Waste Mission – April 29, 2020
https://1drv.ms/v/s!AuL3p2W6v4a1iIYpjoSuQTEiicpvNA?e=kdFpnX
Certificated Hauler Service Area Maps
Includes statewide and county maps from the WA Utilities and Transportation Commission
•PDFS of maps
https://www.utc.wa.gov/regulatedIndustries/transportation/solidWaste/Pages/SWS
erviceMaps-ByCounty.aspx
•Statewide searchable map
https://wutc.maps.arcgis.com/home/webmap/viewer.html?webmap=d379029aa77
d4f2086c0570706c02efa
Publication 20-07-31 31 September 2020
Gable Top - Aseptic Containers
•Expanding Carton Recycling Within Evolving Fiber Markets – Upcyclers Network –
07/08/2020
https://www.upcyclersnetwork.org/wp-content/uploads/2020/07/Evolving-Fiber-
Markets-and-Expanding-Carton-Recycling-Access-for-Municipalities-1.pdf
Contracting for Processing of Recyclables
•The Recycling Partnership BMPs for MRF contracting
file:///C:/Users/pgut461/Downloads/RecyclingPartnership-Community-MRF-
Contracts-6.24.20%20(1).pdf
•MRF & Hauler contract considerations focused on contamination
https://therecyclingpartnership.box.com/s/2cbpcxvgrjkj6tfbhspzjhnb0p3cre49
•SWANA/NWRA contracting guide
https://cdn.ymaws.com/wasterecycling.org/resource/resmgr/docs/resource_library
/SWANA-NWRA_Best_Contracting_.pdf
•Using Contract Language to Improve Recycling – King County Responsible Recycling
Task Force
Includes sample contract language
https://kingcounty.gov/~/media/depts/dnrp/solid-
waste/about/planning/documents/task-force-contract-language.ashx?la=en
•City of Palo Alto Contract for Collection & Processing – includes detailed reporting
requirements, certificates of end-use, etc.
https://www.cityofpaloalto.org/civicax/filebank/documents/68449
Multi-Family
•WSRA – 2019 Annual Conference
Building for Success: Using Code to Improve Multi-family Recycling - Speakers:
Angela Wallis; Seattle Public Utilities, Sarah Kirby; Metro Oregon, Jenna McInnis; City
of Kirkland, Andrea Lei; Cascadia Consulting
•SPU – MF Code to Drive diversion https://wsra.xyz/wp-
content/uploads/2019/12/WSRA_AOR-Presentation-2019_MF-Code.pdf
Publication 20-07-31 32 September 2020
•Oregon Metro – MF Community Engagement - https://wsra.xyz/wp-
content/uploads/2019/12/WSRA_MF_METRO_final.pdf
•City of Kirkland – Using Simple Code to increase recycling -
https://wsra.xyz/wp-content/uploads/2019/12/MF-Code-Conference-
Presentation.pdf
•Cascadia – the role of recycling code and policy - https://wsra.xyz/wp-
content/uploads/2019/12/Cascadia-WSRA-AOR-2019_MF-Policy-and-
Code_DRAFT.pdf
•Salt Lake City Business and MF Recycling Ordinance – Creating a recycling plan –
case studies
http://www.slcdocs.com/slcgreen/Waste&Recycling/SLC%20Business%20Recycling
%20Toolkit%20FINAL_December%202018_Small.pdf
•MF Recycling guide – from rental association
https://www.rentecdirect.com/blog/create-recycling-program/
•Reducing Contamination at Apartment Complex - Michigan
https://wmich.edu/sites/default/files/attachments/u691/2016/Swanson_1.pdf
•Oregon DEQ MF – Improving access to tenants
https://www.oregon.gov/deq/recycling/Pages/Recycling-for-Tenants.aspx
https://www.oregon.gov/deq/FilterDocs/recMultiTenOppFS.pdf
Cart Tagging
WSRA – 2019 Annual Conference
Cart Tags for a Less Contaminated Tomorrow - Speaker/s: Lindsay Chapman; Spokane County,
James Tieken; City of Spokane, Steven Gimpel; Waste Management
Speakers: Joel Kohlstedt; Waste Management, Stacy Ludington; Clackamas County
Sustainability and Solid Waste, Cody Marshall, The Recycling Partnership
•TRP – overview - https://wsra.xyz/wp-content/uploads/2019/12/3b_Partnership-
Tagging-Presentation-4.22.19.pdf
•City of Spokane, Clackamas County, Waste Management - https://wsra.xyz/wp-
content/uploads/2019/12/WSRA_Slides_3b.pdf
Publication 20-07-31 33 September 2020
Single & Dual-Stream Collection
•Experts duel over dual-stream’s merits – Resource Recycling – 5/14/2019
https://resource-recycling.com/recycling/2019/05/14/experts-duel-over-dual-
streams-merits/
•Dual-stream collection regains appeal in some areas - Resource Recycling –
7/17/2018
https://resource-recycling.com/recycling/2018/07/17/dual-stream-collection-
regains-appeal-in-some-areas/
•Mill Valley Refuse Service dual-stream recycling pilot program – 9/28/2018
https://www.cityofmillvalley.org/news/displaynews.htm?NewsID=1599&TargetID=5
3,52
General Contamination Reduction
•WSRA - https://wsra.net/events/2018-wred-events/- Contamination Fest March –
many presentations
•SCS Engineers – high-level guides for reducing contamination and includes other
linked resources
https://www.scsengineers.com/minimize-contamination-in-recycling-programs/
https://www.scsengineers.com/proven-methods-reduce-contamination-recycling/
•NWRA – Anti-contamination Poster
https://cdn.ymaws.com/wasterecycling.org/resource/resmgr/images/Reduce_Conta
mination_Infogra.pdf
•Oregon DEQ – Recycle Right campaign
https://www.oregon.gov/deq/recycling/Pages/Recycle-Right.a
•Recycle or Not – Oregon Metro https://www.recycleornot.org/
Hauler Websites
•Republic Services – Recycling Simplified - https://recyclingsimplified.com/
•Waste Management – Recycle Right - https://www.wm.com/us/en/recycle-right
•Waste Connections – Recycle Right – Clark County -
https://wcnorthwest.com/recycleright
•Recology – Better at the Bin - https://www.recology.com/better-at-the-bin/
Publication 20-07-31 34 September 2020
Glass
•Recycling glass with alternative collections – Laura Hennemann, Strategic Materials-
07/22/2020
https://www.upcyclersnetwork.org/wp-content/uploads/2020/07/Upcyclers-Strategic-
Materials-July-20_Laura.pptx
•Glass Recycling in Today’s Market – Scott DeFife, Glass Packaging Institute –
07/22/2020
https://www.upcyclersnetwork.org/wp-content/uploads/2020/07/Upcyclers_Glass-
Webinar_Scott.pptx
•Refresh Glass – Ray DeMuro, Refresh Glass – wine bottles into glassware – 07/22/2020
https://www.upcyclersnetwork.org/wp-content/uploads/2020/07/Ray-
DelMuro_Refresh-Glass-short.pptx
Measurement and Cost Analysis
•Measuring Composition and Contamination at the MRF – NERC Conference –
10/31/2018
https://nerc.org/documents/conferences/Fall%202018%20Conference/Measuring%20C
omposition%20and%20Contamination%20at%20the%20MRF_John%20Culbertson.pdf
•Municipal Measurement Program (MMP) - https://www.municipalmeasurement.com/
The MMP provides municipalities free access to a centralized database to measure
program performance, benchmark results, and access tools and resources to improve
curbside recycling programs.
•2013 Material Composition Study – Ontario Blue Box Program
https://stewardshipontario.ca/wp-content/uploads/2016/03/2013-MRF-Material-
Composition-Study-March-22-16-1.pdf
•Costs of adding non-core materials to processing costs and recovery rates
https://thecif.ca/understanding-how-program-costs-and-recovery-have-changed-over-
time/
Life Cycle Analysis
•EPA Waste Reduction Model (WARM) Calculator – estimate GHG emissions reductions,
energy savings, and economic impacts of alternative waste management strategies.
https://www.epa.gov/warm
Publication 20-07-31 35 September 2020
•Oregon Department of DEQ Environmental Footprinting for Packaging -
https://www.oregon.gov/deq/mm/production/Pages/Packaging.aspx
•Waste Management 2018 Sustainability report – includes data on impacts of recycling
on GHG emission - page 31 - https://sustainability.wm.com/downloads/report.php
•Using Lifecycle Thinking for Strategic Goal Setting – Susan Robinson - presentation to
Washington State Department of Ecology – 10/04/2017
https://www.ezview.wa.gov/Portals/_1962/Documents/rcrr/Robinson%20WDOE%20-
%2010-4-2017%20v2%20.pdf
•Rethinking Recycling – David Allaway – presentation to NE Recycling Coalition – 03-19-
2020
https://www.ezview.wa.gov/Portals/_1962/Documents/rcrr/Rethinking%20Recycling%2
0Presentation_David%20Allaway_OR%20DEQ.pdf
Product Design for Recyclability
•How2Recycle Recyclability Insights Report
https://how2recycle.info/insights?utm_source=newsletter&utm_medium=email&utm_
content=Explore&utm_campaign=H2R%20Guidance%20Doc%207.2017
Publication 20-07-31 36 September 2020
List of Figures
Page
Figure 1: Samples of Spokane's contamination reduction campaign, including
postcards, FAQs, and more are in the local programs section of the
Resource Library. ................................................................................................. 4
Figure 2: Lopez Solid Waste Disposal District uses actual recyclables to create 3D
signage at their drop box locations. .................................................................... 9
Figure 3: Drop box, commercial, and multi-family collection programs should consider
the 4 C’s (Capacity, Convenience, Color, and Clarity). from Cascadia
Consulting – 2019 Role of Recycling Policy and Code presentation .................. 10
Figure 4: ZeroWaste Washington survey of residential recycling collection programs
by waste generation area or WGA. See glossary for a definition of a WGA. .... 12
Figure 5: Jefferson County drobox signage includes actual examples of acceptable
and unacceptable materials. Find more information in the local programs
section of the Resource Library. ........................................................................ 17
Figure 6: Glass collected in commingled recycling programs can end up at paper mills
and seriously damage papermaking equipment. This 2009 photo shows
glass that was in a paper bale and rejected in the pulping process at
NORPAC. ............................................................................................................ 24
Figure 7: City of Olympia removed glass from their commingled residential recycling
program in 2020 to reduce cross-contamination of the others materials they
collect. They now provide glass recycling at drop off sites around the city. .... 25
Figure 8: Refresh Glass is on a mission to rescue 10 million bottles from disposal by
transforming wine bottles into exquisite glassware. As of August 6, 2020,
they’ve rescued 1,613,747 bottles and counting. ............................................. 26