GCMS document fragment with quality control data, March 2002

NYC 9/11 Public Portal Document

Methoi /VldL Date Extracted oa Page

_____________ 77MSr Lab# Description I Sample Drip rate Surr IS Rnal T.V. pH Count 1' : voi/wt ml/min add add add vol. pos.

IBM ft je — SogS______ jn£ go3 (g 5oS 7^ Sb 5^ Fgi lOA ry^'O

X Z / >1/-

?■

I

I Remarks

r if 7 111 drip rate must be between 5-15 ml/min for liq-liq extractors drip rate -

II Extraction type - Solv.lot# NaCI lot# Na2SO4 lot# STANDARD INT STD LOG# CALIBRATION I^^PIKE W- 0-1 ^3 I. MOL/MDRF Q. CHECK INT. STD. S’"' SURROGATE Sft' LPC ENDRIN/DDT

I Analyst Reviewed by revision 4/12/01 Verified by Date

NYC-WTC_000058817