stack testing: what is it and why is it necessary?
TRANSCRIPT
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Stack Testing:
What is it and why is it
necessary?
Jeremy Howe
Michigan Department of Environmental
Quality
231-876-4416
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Who will you hear from?
• Jeremy Howe
Environmental
Quality Analyst
• Jenifer Dixon
OEA Air Specialist 2
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Webinar Set Up • All lines will be muted
• Questions can be sent to us via the
question/chat box
• We will
record and
post the
webinar
online
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AQD and Stack Testing
• What is stack testing?
• Why do stack testing?
• Who in AQD attends stack tests?
How to streamline your stack testing
experience and path to compliance.
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AQD and Stack Testing
• Technical Programs Unit (TPU)
– Stack Testing
– CEMs
– Asbestos
– Dry Cleaning
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AQD and Stack Testing
What Does TPU staff do?
• Observe source sampling
• We do not perform testing
• We travel state wide
• Sometimes climb the stack
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What is Stack Testing? The physical measurement of a
representative sample of the emissions
from a source to verify concentrations
and/or emission rates/factors.
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Why do Stack Testing?
• Requirement of a regulation
– State Rules (See Part 10 Rules)
– Federal Rules
• NSPS (40CFR60)
• MACT (40CFR63)
• NESHAP (40CFR61)
• Cited in permit
• Consent Order
• CAA 114
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Why do Stack Testing?
You have an emission limit in the
permit, but what does that mean?
Sometimes it means you must conduct
stack testing to show your source’s
compliance with the limit.
That’s where we come in!
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• A stack test consists of three runs.
• Each run typically 60 minutes long and/or
30 dry standard cubic feet sampled.
• Average of the three runs is “the number”
compared the emission limit in the permit.
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What is Stack Testing?
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Before the Test
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How do I get “the number”?
1. Apply to DEQ for a permit.
2. Receive a permit from DEQ.
3. Build source.
4. Optimize source.
5. Select testers.
6. Submit test plan to DEQ.
7. Test.
8. Report results to DEQ.
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Dates, Dates, Dates
• Submit Test Proposal at least 30 days
before you want to test (could be more).
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Dates, Dates, Dates
Submit Test Proposal • Outline test event
• Include Source info:
– Source name in permit
– Pollutant -Value of limit
– Methods -Unit of measure of limit
– Short description of the process being
tested Please see FORMAT FOR SUBMITTAL OF SOURCE
EMISSION TEST PLANS AND REPORTS
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Dates, Dates, Dates
Test Proposal cont.
Date(s) of testing
Cite permit that the limits come from
Facility person’s phone/email
Test person’s phone/email
Location of sampling on source
Location of sample points within source
ANY DEVIATIONS FROM THE
METHODS/REGULATIONS 18
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Dates, Dates, Dates
• Test Approval Letter
arrives 10 - 20 days prior
to test
(you need this to test!)
• Being proactive and checking in with
DEQ a day or two before the test is a
good idea.
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Dates, Dates, Dates
Test Date
• Usually included in the proposal
• Required to notify AQD 7 days prior
THINGS HAPPEN!
So let us know as they happen
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Test happens!
(hold that thought for now)
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Dates, Dates, Dates
Test Report Submittal • Within 60 days after the test is completed
• Copies to local district office and TPU
*(check approval letter)
• Include everything from proposal, plus
– Values for emissions
– Data from testers and process/control readings
– Any aborted, failed or repeated runs
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The Report • Testers generate report
o Based on data collected
o Reported as tested
o Cover Letter to discuss anomalies
• Send report to company o Review it!
• Company sends the
report to AQD 23
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The Report • Did you include:
• all runs including aborted, failed and repeated?
• emissions in the same units and decimal places as
the limit?
• copies of all the raw data and field data sheets?
• copies of the lab analysis?
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Include
Exclude
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Preparing for
The Test
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How long does it take on
test day? • Three 60min/30dscf runs?
– Typically 4-6 hours (not counting setup
or tear down)
• Three 120min/60dscf runs?
– Typically 8-10 hours (not counting setup
or tear down)
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Times could be longer…
• Facility goes down
• Challenging sampling location
• Air temp is above 80F
• Air temp is below 40F
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SAMPLE HERE!
80F
40F
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Process Operations
• How should I run the source and control
equipment on test day?
– Usually, it is up to the company.
– However, the company will usually be limited to the
production on test day.
– Production should be at a similar level throughout the
three runs and should be representative of routine.
– MUST BE WORKED OUT AHEAD OF TIME WITH
LOCAL DISTRICT OFFICE.
– HAVE EXTRA PRODUCTION AVAILABLE AS A
CUSHION.
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What do the testers need on test day?
• Access to sampling location.
• Correctly positioned and sized sample ports.
• Access to lots of power.
• Someplace to park their trailer and setup shop.
• Someway to contact the facility.
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DEQ and Test Day
Two DEQ staff – Someone from the local district office.
• See the process and records.
• Know/meet whoever is the lead for the facility.
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– Someone from Technical
Programs Unit.
• See the testers and
sampling location(s).
• Know/meet whoever is the
lead for the testers.
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Things to think about…
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Getting Started
• When do I want to test by?
• How many days do I need for testing?
• Will we have enough production?
• Who do I want to hire for testing?
oTester
oConsultant
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Process Data
• When was the last time our scales/meters
were calibrated?
• Can you read the screens/gauges?
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Test Day Contacts
• Who should be the test day facility contact
person?
• Do you have a way to get a hold of:
oThe testers
oThe process operators
oDEQ
Checklist!
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Ports • Are ports accessible?
• Are the ports big enough?
• Can the ports be opened?
• Should a preliminary check be done?
• What safety training/equipment are
needed?
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Process Operations
• At what level do I need to operate?
• What materials should I use?
• When should I start my process?
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Recording
• What process parameters need to be
recorded and how often?
• Are we recording the process at the
interval in the proposal?
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Sampling
• How long do we need to sample for?
• Do I need audit samples?
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Sampling
• Where are the testers recovering the
sample?
• Do I need to collect a sample of
fuels/coatings?
• Do the samples of fuels/coatings need to
be sent off for analysis?
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Production Issues
• If production pauses, then pause
testing.
– Resume testing when production
resumes.
– Pausing/slowing production to switch
over products, containers, rolls, paints
cans, etc… happens.
– Be prepared in order to minimize down
time and so the testers know when to
pause and resume collecting sample. 40 DON’T PANIC!!
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Production Issues • What about scheduled pauses in
production?
• Who has the decision making authority to
start/pause/stop testing on test day?
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Production/Testing Issues • Something happens that jeopardizes a run
(you think or know). Now what?
DO ANOTHER RUN!!!
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Test Failure
• Contact your inspector ASAP.
• The AQD inspector will make the
compliance determination.
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Test Failure • Failures result in re-testing to show
compliance.
• There has to be a reason why you failed
so vet this before retesting.
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Resources
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Resources
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State
Guidance
Google Search
MDEQ
FORMAT FOR
SUBMITTAL
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Resources
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Federal
Guidance
Google Search
NATIONAL
STACK TESTING
GUIDANCE
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Resources
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State Methods
Google Search
PART 10
INTERMITTENT
TESTING AND
SAMPLING
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Resources
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Federal
Methods
Google Search
EPA EMC
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Resources
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Location Name Email Phone
Lansing Karen Kajiya-Mills [email protected] 517-284-6780
Detroit Tom Maza [email protected] 313-456-4709
Warren Mark Dziadosz [email protected] 586-753-3745
Lansing Tom Gasloli [email protected] 517-284-6778
Lansing David Patterson [email protected] 517-284-6782
Cadillac Jeremy Howe [email protected] 231-876-4416
Cadillac Rob Dickman [email protected] 231-876-4412
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QUESTIONS???
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What’s Coming Up?
Air Monitoring: History and Rationale
Wednesday, March 16, 2016 10:00AM
Dust: Fugitive Dust Regulations and
Fugitive Dust Plans
April 13, 2016 at 10:00AM
Please join us!
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Wrap Up
• Recording
• Materials
• Continuing
Education
• Evaluation
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Michigan Department of
Environmental Quality
800-662-9278
www.michigan.gov/deq
Sign up for email updates
Follow us on Twitter @MichiganDEQ
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