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Certification Update. New and Some Not-So-New Items of Interest steve_arms@doh.state.fl.us 904-791-1502 http://www.doh.state.fl.us/lab/EnvLabCert/WaterCert.htm. Topics. The NELAC Institute (TNI) Proficiency Testing (PT) Rules Certification clarifications. http://www.NELAC-Institute.org.

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certification update

Certification Update

New and Some Not-So-NewItems of Interest



  • The NELAC Institute (TNI)
  • Proficiency Testing (PT)
  • Rules
  • Certification clarifications
current status of tni standards
Current Status of TNI Standards
  • Field Activities and AB General Requirements and OSA modules are Final Standards
  • Draft Interim Standards (QS and PT) vote held in July
  • Comments discussed at The Forum in Cambridge
  • Committees modify the modules as a result of persuasive comments received, and the membership will have the opportunity to change their votes
  • Resulting IS will be discussed at the Jan 2008 meeting
  • Voting follows
  • Final QS and PT Standards by about May 2008
  • 2-yr implementation schedule, if current system followed
tni update
TNI Update
  • New Policies
    • Conflict-of-Interest
    • Ethical Conduct
  • Transition from NELAC almost complete (only AARB remains)
  • QM template available
  • Standards w/ISO coming out for sale
tni cambridge forum presentations
TNI Cambridge Forum presentations
  • Activities of the NELAC Institute
  • EPA's Drinking Water Certification Program:History, Status and Direction
  • Who Accredits the Accreditors?
  • Identifying Deficiencies and Implementing Corrective Actions
  • Accreditation Body Fee Structures
  • Comparison Table of Accreditation Body Fees
  • Advocacy Committee
  • On-Site Assessment Committee
  • Laboratory Accreditation System Committee
  • Mentoring Session
  • NELAP Board
  • Technical Assistance Committee
proficiency testing timing
Proficiency Testingtiming
  • 2 per year (July 1-June 30) per FoPT (matrix-technology-analyte)
  • No more than 7 months (closing to closing) between studies
  • No less than 15 days (closing to shipping) between subsequent studies for each FoPT
  • Every certified DW method once per year
  • No more than 45 days from shipping to closing (supplemental studies included!)
proficiency testing success measures
Proficiency Testingsuccess measures
  • Pass two of the latest three attempts
  • Participate in experimental PTs
  • Choose Florida as recipient of results on or prior to study closing date (exception: FoPTs applied for)
  • Stay on schedule - missed studies (>7 months between) count as failures
proficiency testing restrictions
Proficiency Testingrestrictions
  • Don’t transfer PTs
  • Don’t exchange information
  • Handle and analyze PTs like samples
  • Complete PTs by the time of an assessment for pending FOAs
  • Use the PT Tables as your guide to selecting required FoPTs
conditions on pt as doc
Conditions on PT as DOC
  • The "4-replicate" procedure outlined in Appendix C.1 to NELAC Chapter 5 is not required by regulation or the method.
  • The method does not specify a DOC procedure.
  • Quality Manual documents that using a PT to demonstrate initial capability is an adequate approach.
  • The PT is in the correct matrix.
  • Reported results fall within any QC acceptance criteria of the method.
pt news
PT News
  • New tables in effect posted at http://www.nelac-institute.org/
  • Some “experimental” analytes moved to “accreditation” status
  • New Solids table lists two levels for Volatiles and PAHs (NELAP Board is deliberating on this)
  • ELCP now tracking PT electronically
    • Use your EPA ID when reporting
    • Report the certified method
  • TNI PT Committee considering reverting to one PT per year – Stay tuned!
certification application form
Certification Application Form
  • DW methods listed are not necessarily “approved” for compliance testing
  • Every FOA available is not listed
  • Consolidate applications, if possible
  • Pages 1-6 needed (instructions on page 3)
  • Submit QM or modified pages
  • Off-site documentation review possible
rule updates
Rule Updates
  • MUR
  • 62-160
  • DBPR
methods update rule
Methods Update Rule
  • SM online and SM 21st Edition are the same
  • Method flexibility in 136.6 is not applicable to DW
  • Method modifications must meet requirements of 136.6
  • Nitrate CR method now shown as calculation
  • Discrete analyzers
    • May have EPA letter or have 136.6 documentation
    • May reference automated methods
dep rule 62 160 post workshop update
DEP Rule 62-160 Post-Workshop Update
  • Added a provision to use DW methods NPW where no other method exists.
  • Removed additional mandatory reporting requirements and added a clarification about the use of data qualifier codes by entities other than the data originator.
  • Simplified and generalized electronic signatures.
  • Removed Table 2 (DQIs) and incorporated its contents into DEP-EA-001/07 with substantial revision. Clarified data assessment criteria.
  • Clarified the intent and procedures for data rejection.
  • Clarified the definitions for qualifier codes J, V, X.
disinfection by products stage 2 dbpr
Disinfection By-ProductsStage 2 DBPR
  • MRLs defined for TTHM, HAA5, Chlorite, Bromate
  • Calibration curve must encompass MRL
  • Check standard run at < 110% of MRL
  • Must achieve + 50% recovery to report results < 5X MRL
  • DEP will reject data if the reportedMDL > MRL and a non-detect is reported
recent clarifications
Recent Clarifications
  • Sample preservation
  • Sample duplicates
  • SM 21st Edition
  • Distillation
  • Method version
cooling as sample preservation
Cooling as Sample Preservation
  • Samples must be collected in “wet” ice
  • Same-day delivery
    • Off-temp sample acceptable if chilling process has begun
    • Still record temperature and document “on-ice”
microbiology sample preservation
Microbiology Sample Preservation
  • Recommend all samples be checked for TRC
  • Chlorine check as a part of determining proper preservation when sodium thiosulfate is used
  • DEP rules require the use of thiosulfate "in the presence of residual chlorine" for preservation of Microbiology samples
  • Measure the TRC and add preservative if necessary
  • NELAC exemptions
  • Microbiology duplicates are to be analyzed on 10% of samples, not plates, or at least one per run (an uninterrupted series of analyses)
  • Chemistry MS/MSD does not qualify as a sample duplicate when one is required by method
sm 21 st edition news
SM 21st Edition News
  • CBOD
    • Allylthiourea (ATU) allowed as nitrification inhibitor
    • Inhibitor not added to water quality check (blank)
  • Microbiology media in screw-cap tubes may be stored at 25oC for up to 2 weeks
  • EPA Region 4 requires distillation of samples for fluoride and ammonia unless a comparative study has been performed to demonstrate that the distillation is not necessary
  • Statistically compare values on at least 7 samples
  • If the comparative data shows no difference, then the variance of not distilling is acceptable
  • Comparison must be performed on representative effluents
  • If the waste stream changes and is no longer representative then another study must be performed
method version most recent revisited
Method Version “Most recent” revisited
  • NELAC - Methods published in international, regional or national standards shall preferably be used. The laboratory shall ensure that it uses the latest valid edition of a standard unless it is not appropriate or possible to do so
  • NELAC - technical personnel … perform the most recent version of the test method (the approved method or standard operating procedure as defined by the laboratory document control system)
plain language
Plain Language

A perissodactyl ungulate may be propelled toward a body of aqueous fluid, but such ungulates cannot be forcibly induced to imbibe such fluid.

plain language25
Plain Language

You can lead a horse to water, but you can’t make it drink.