CONNECTICUT REASONABLE CONFIDENCE PROTOCOLS PRESENTED TO CBIA

1
CONNECTICUT REASONABLE CONFIDENCE
PROTOCOLSPRESENTED TO CBIA

• JEFFREY CURRAN
• CONNECTICUT DPH
• September 21, 2007

2
RCP DEVELOPMENT

• Methods developed by DEP QA/QC Workgroup
• Based on Mass CAM
• Establish reasonable QC limits for major
  analytical methods
• Define reporting limits
• Require laboratories to narrate non-conformances

3
Methods Currently Posted

• 8260 (VOC GC/MS)
• 8270 (SVOC)
• 8081 (Pest)
• 8082 (PCB)
• 8151 (Herbicides)
• 8121 (VOC GC)
• 1311 (SPLP)

• ETPH
• 6010 (Metals)
• 6020 (Metals)
• 7470/7471 (Mercury)
• 7000 Series (Metals)
• 9010/9012/9014 (CN)
• 1312 (TCLP)

4
Methods Under Development

• Mass VPH
• Mass EPH
• Method 8310 PAH's by HPLC

5
Some Concepts That May Be New To Labs

• Report QC as required by method
• Narration of non-conformances
• Different QC criteria than used to
• Calibration at Reporting Limit (RL)
• New forms

6
QC Reporting

• Some lab formats may be difficult to read
• Work with your labs to make format user friendly
• Lab are generally responsive to their customers

7
QC Criteria

• Labs may have used different criteria in past
• Reprogramming of LIMS
• Analysts unfamiliar with new criteria

8
Narration

• Some labs have never narrated reports
• Work with your labs to make language
  understandable
• Labs need to be detailed
• Specific analytes and samples affected

9
Calibration at RL

• Labs may not have been calibrating at RL
• Will require more sensitive techniques in some
  cases
• Expected some increase in analytical cost for
  certain tests where RSR limits very low

10
New Forms

• Lab Communication form - optional
• Lab Certification form required
• Must be signed

11
What About Other Methods

• Obviously large number of methods not included in
  RCPs
• Example 8141 for Organophosphorus pesticides
• Use QC from equivalent method 8081
• Deliverables the same
• Narrate what criteria used

12
Demonstrating Equivalency

• Assume lab wants to use different method for
  analytes
• Example Method 8100 for PAHs (GC-FID)
• Lab would need to have been approved by ELCP
• Reporting limit must be met
• Lab have documentation on file for inspection
• Should notify data user prior to sampling
• Equivalent QC criteria

13
Summary

• RCP criteria should be achievable for labs
• Standardized reporting
• Narration of non-conformances
• Data of known quality

14
Questions and Contact Info

• jeffrey.curran_at_ct.gov
• Phone [phone]
• FAX [phone]