Is this still an Interior Lining? -...
Transcript of Is this still an Interior Lining? -...
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Celebrating 40 years of taking care of Missouri’s natural resources.
Is this still an
Interior Lining?
Heather Peters
Missouri Department of Natural Resources
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Celebrating 40 years of taking care of Missouri’s natural resources.
New Federal Language 280.21
• Installed in accordance with 280.33
• Inspected on 10/5 year interval
If it is no longer performing in accordance
with original design specifications and
cannot be repaired in accordance with a
code of practice developed by a nationally
recognized association or independent
testing laboratory, then the lined tank must
be permanently closed…
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Celebrating 40 years of taking care of Missouri’s natural resources.
But my lining isn’t for upgrades!
• Do you require inspection/ maintenance
for other linings?
• Compatibility?
• Repair?
• Secondary Containment?
• Do those regulations require I & M?
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Celebrating 40 years of taking care of Missouri’s natural resources.
![Page 5: Is this still an Interior Lining? - NEIWPCCneiwpcc.org/tanks2015old/tanks2015presentations/2-Monday/Is This... · Is this still an Interior Lining? Heather Peters Missouri Department](https://reader034.fdocuments.net/reader034/viewer/2022052515/5a8e5e697f8b9a4a268d2f10/html5/thumbnails/5.jpg)
Celebrating 40 years of taking care of Missouri’s natural resources.
Interior Lining- Standards • American Petroleum Institute (API) RP1631
• National Leak Prevention Asso (NLPA) 631
• American Society for Testing and Materials
(ASTM) G158? – Purpose is for cathodic protection, not lining
• Underwriters Laboratory (UL)1856? – Construction NOT Inspection
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Celebrating 40 years of taking care of Missouri’s natural resources.
API 1631 (Periodic Inspections)
• “Qualified person”
• Thickness/ Hardness checked
• Holiday detector for air pockets, leaks,
pinholes
• Steel tank integrity test required (must
have at least 75% original steel
thickness)
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Celebrating 40 years of taking care of Missouri’s natural resources.
API 1631 (Periodic Inspections)
• Peeling
• Blistering
• Wrinkled
surface
• Defects repaired to manufacturer specs
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Celebrating 40 years of taking care of Missouri’s natural resources.
![Page 9: Is this still an Interior Lining? - NEIWPCCneiwpcc.org/tanks2015old/tanks2015presentations/2-Monday/Is This... · Is this still an Interior Lining? Heather Peters Missouri Department](https://reader034.fdocuments.net/reader034/viewer/2022052515/5a8e5e697f8b9a4a268d2f10/html5/thumbnails/9.jpg)
Celebrating 40 years of taking care of Missouri’s natural resources.
NLPA 631 B Lining Inspections
• Certify employees…are knowledgeable
• Special inspector or qualified person
• Lining shall be tested:
– Signs of peeling, blistering, surface wrinkling
– Thickness/ Hardness/ Holiday testing
• Steel Integrity testing requirements (must
have at least 75%/85% original steel
thickness)
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Celebrating 40 years of taking care of Missouri’s natural resources.
API 1631 and NFPA 631
• Both allow linings to be repaired
• Both require passing (75%) integrity
assessment of the steel tank
• Both have detailed breakdown of the
number and location of steel tank
measurements
• Does not allow mean-time-to-corrosion in
lieu of steel shell evaluation
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Celebrating 40 years of taking care of Missouri’s natural resources.
![Page 13: Is this still an Interior Lining? - NEIWPCCneiwpcc.org/tanks2015old/tanks2015presentations/2-Monday/Is This... · Is this still an Interior Lining? Heather Peters Missouri Department](https://reader034.fdocuments.net/reader034/viewer/2022052515/5a8e5e697f8b9a4a268d2f10/html5/thumbnails/13.jpg)
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Celebrating 40 years of taking care of Missouri’s natural resources.
Video Inspections????
• Ken Wilcox Associates Recommended
Practice for Inspecting Buried Lined Steel
Tanks Using a Video Camera
• Defines certified/qualified persons
• Signs of separation, delamination,
blistering, peeling, holidays
• Thickness/ Hardness test (minimum 5 at
each opening)
• Inspection only
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Celebrating 40 years of taking care of Missouri’s natural resources.
Certifications?
• Confined Entry
• NACE International
– Coatings Inspector
• International Code Council (ICC)
– UST Installation/Retrofitting
• Society for Protective Coatings (SSPC)
• State specific?
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Celebrating 40 years of taking care of Missouri’s natural resources.
UL1856- The New Retrofit Standard
1. Lining: single-walled
2. Upgrade: double-walled
– “Co-structural”: requires original “host” tank integrity
3. Self-structural: double-walled
– Does NOT require original “host” tank integrity
– Does NOT require steel tank to pass integrity test
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Celebrating 40 years of taking care of Missouri’s natural resources.
Lining (UL1856)
• Single-walled
• Lining flush
against steel
• Steel
assessment in
standards
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Celebrating 40 years of taking care of Missouri’s natural resources.
• Two walls of
the lining
• First layer
against steel
• Interstitial
space
• Steel integrity
required
Upgrade, double-walled
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Celebrating 40 years of taking care of Missouri’s natural resources.
Self-structural
• Two lining
layers
• First layer
against steel
• Interstitial
space
• Steel integrity
NOT required
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Celebrating 40 years of taking care of Missouri’s natural resources.
Inspections
Video/ Manned Inspection
• Every 5 years
• Assesses steel
• Assesses lining condition
• Failure only detected at
inspection (once in 5
years)
Interstitial Monitoring
• Continuous (NWGLDE def)
• Checks every day for 5
years
• Interstitial check catch
interior wall failure from
portion that contains fuel
• Exterior fail may be seen
• Does not assess condition
or approaching problems
• Detects failure immediately
?
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Celebrating 40 years of taking care of Missouri’s natural resources.
Inspections and Monitoring Single-wall Lining
Video inspection
Entry inspection
5 year test
(only option)
Steel integrity
Double-wall Upgrade
Video inspection
(inside layer)
Entry inspection
(inside layer)
5 year test
Interstitial testing
? Steel Integrity
Can I even inspect it?
Self-structural
Video inspection
(inside layer)
Entry inspection
(inside layer)
5 year test
Interstitial testing
? Steel Integrity
Can I inspect it?
If steel doesn’t
matter, can I
exclude it?
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Celebrating 40 years of taking care of Missouri’s natural resources.
Can I even inspection it?
• Lining: Yes, traditional inspection
• Double-walled co-structural:
– Video? Interstitial?
– If you allow G158 for steel assessment?
NOT INTENDED PURPOSE
• Self-structural:
– Inner layer only (if waive steel assessment)?
– If you allow interstitial? Video?
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Celebrating 40 years of taking care of Missouri’s natural resources.
Steel Integrity Assessment
Can I do it? Must I do it?
Lining (single-walled) YES YES
Double-walled lining NO?? YES
Self-structural NO?? NO?? YES?
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Celebrating 40 years of taking care of Missouri’s natural resources.
Is it eligible for repair?
Lining: Steel passes
Double-walled, co-structural:
If you allow mean-time-to-corrosion?
No repairs?
Self-structural: Manufacturer repair only? No
repairs?
Is a re-lining a repair? If okay to patch, but
prefer to re-line….
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Patch?
But not
Re-line?
⤴
⤶ ⤶
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Celebrating 40 years of taking care of Missouri’s natural resources.
Rules, Installs, Inspections
• Regulation: Inspect to industry standard
• Inspection Standard: Can repair IF steel
passes
• UL1856 Installation Standard: Steel is
irrelevant for Self-Structural
• What do I do?
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Celebrating 40 years of taking care of Missouri’s natural resources.
Your Regs - Your SPA
• Opening Regulations
• Understand the standards
• What works for your state?
• Can you prove it is equitable?
• Talk to EPA about your SPA!
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Celebrating 40 years of taking care of Missouri’s natural resources.
Questions- Now or End of the
Presentations