DATA OF KNOWN QUALITY CONFORMANCE/NON-CONFORMANCE SUMMARY QUESTIONNAIRE

Laboratory Name : Project Location :

CHEMTECH

Client :

Project Number :

VERINA CONSULTING GROUP, LLC 5183.0001 - Rotor Clip NJ WTD - 2025

Laboratory Sample ID(s) :

Q1519

Sampling Date(s) :

3/06/2025

List DKQP Methods Used (e.g., 8260,8270, et Cetra)

1664A,6010D,SM2540 D,SM4500 Cl G,SM4500-NH3,SM5210 B,SM5220 D,SOP

1	
For each analytical method referenced in this laboratory report package, were all specified QA/QC performance criteria followed, including the requirement to explain any criteria falling outside of acceptable guidelines, as specified in the NJDEP Data of Known Quality performance standards?	
Yes	
	
No	
1A	Were the method specified handling, preservation, and holding time requirements met?	
Yes	
	
No	

1B	EPH Method: Was the EPH method conducted without significant modifications (see Section 11.3 of respective DKQ methods)	
	Yes	
	
No	
	
N/A	

2	Were all samples received by the laboratory in a condition consistent with that described on the associated chain-of-custody document(s)?	
Yes	
	
No	

3	Were samples received at an appropriate temperature (4±2° C)?	Yes		
No		
N/A	

4	
Were all QA/QC performance criteria specified in the NJDEP DKQP standards achieved?	
Yes	
	
No	

5	
Were reporting limits specified or referenced on the chain -of-custody or communicated to the laboratory prior to sample receipt?

Were these reporting limits met?	
Yes

Yes	


	
No

No	

	

N/A	
6	For each analytical method referenced in this laboratory report package, were results reported for all constituents identified in the method-specific analyte lists presented in the DKQP documents and/or site-specific QAPP?	
Yes	
	
No	

7	
Are project-specific matrix spikes and/or laboratory duplicates included in this data set?	
Yes	
	
No	

Notes: For all questions to which the response was “No” (with the exception of question #7), additional information should be provided in an attached narrative. If the answer to question #1, #1A, or #1B is “No”, the data package does not meet the requirements for “Data of Known Quality.”