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MEMORANDUM <br /> -' Date: Ianuary 14, 1993 <br /> To: Melody L. Allm, projxt Maoager , <br /> ^ From: Robert Salisbury, Staff('Lemist <br /> Subjxh Data Validalion Raview <br /> " TPH-HCID Soil Dab <br /> Ciry of Everett Proposed NoAh-Fast View Park, 03352-021-005 <br /> " The dah va�idation review of 11 wil amples collectod on December 4 through 7, 1992 h�s bcen <br /> complUad. 11e samples were wlyzed for tohl peholeum hydrocarboas (TPf� by D&M Lrbontories (D&M) <br /> locatad in Pwlume. Califmnia. 1Le analyses wero performed using mUhod WTPH-HCID in aa;ordance with <br /> _ Appmdi�c L of tha Guidance for Remedi�tion of Rela�ees From Uuderground Storage Taaks (Washington <br /> Departmeat of Ecology, April, 1992). Summ�ries of the sample data and labontory QC dau wem provided by <br /> D&M. T6e following semples ue associated with�abotaWry cue number(or accassion number)923530: <br /> -' Samole Number p&M Number <br /> TP-1-1 30624 <br /> 'i P-1-2 30625 <br /> TP-2-1 30626 <br /> TP-2-2 30627 <br /> TP-3-1 30628 <br /> TP-3-2 30629 <br /> TP-4-I 30630 <br /> TP�-2 30631 <br /> HA-4 30638 <br /> HA-5 30639 <br /> _� HA-6 30640 <br /> 1'he fallowing comments refer to D&M's performance in meeting the quality cantrol specifications <br /> •.» described in Appeodiz L of the Washington DOfi documeat 'Guidance for Remediation of Releases From <br /> Undarground Storage Tanks," April, 1992. <br /> � 1. Holding Time - Acceptable <br /> � 2. Blanks -Acceptable <br /> i <br /> —� 3. Surrogate Recovery - Acceptable <br /> 4. RepoRa! Detection Limits-Acceptable <br /> 5. Type of Data Validation Review - Suwnary <br /> 6. Overall Assessment of Data <br /> The usefulness of the data is based on the.:cclogy guidanca document listed above. Upon consideration <br /> of Ihe infom�etion presented ebove, the data are acceptable except where Flagged with data qualifiers which modify <br /> -- the usefulness of the individual values. <br />