LANL IP Decision tree regarding "Class 2" issues (TAL exceedences).
|
|
|
|
|
|
|
|
|
|
|
|
TALs exceeded?
|
NO
|
For an individual site, execute and meet protocols for exiting permit coverage.
|
|
Exit permit for this site.
|
| |
| |
YES
|
|
|
|
|
|
|
|
|
|
Contamination due to off-site sources?
|
NO
|
Is there adequate monitoring data to demonstrate the site causes TAL exceedences?
|
NO
|
Are the available data from stormwater?
|
YES
|
Is storm flow probably in the future?
|
YES
|
Collect more stormwater data and compare to TALs.
|
YES
|
|
YES
|
|
NO
|
NO
|
|
|
|
|
Can run on data be collected?
|
|
Are contaminants PCBs or others that are cover in the "Demonstration Protocols"?
|
|
Are available data from soils only or are there no data?
|
NO
|
Collect new of use existing soils data and proceed to TCLP/Soil Partitioning Model.
|
|
Do soils data using TCLP/Soil Partitioning Model indicate TAL exceedence?
|
NO
|
|
NO
|
|
YES
|
NO
|
|
YES
|
NO
|
|
Are PCBs the contaminant?
|
|
Corrective action necessary.
|
|
Can stormwater be collected in a reasonable timeframe?
|
|
Execute and meet protocols for exiting permit coverage
|
|
Corrective action necessary.
|
NO
|
YES
|
|
|
YES
|
|
|
|
|
|
Are metals with site-specific hardness data or adj. gross alpha< background report levels?
|
|
Compare data to background report May 2012.
|
|
Collect stormwater data and compare to TALs.
|
| |
| |
NO
|
YES
|
|
|
|
|
|
|
|
|
Are metals with site-specific hardness data or adj. gross alpha > background report levels?
|
|
Continue monitoring.
|
| |
| |
| |
YES
|
|
|
|
|
|
|
|
|
|
Corrective action necessary.
|
| |
| |
| |
| |
|
|
|
|
|
|
|
|
|
|
LANL IP
