G:\2010\0102974\15096H(Att2).doc Texas Registered Engineering Firm F-2393 

# Figures

December 16, 2009 Project No. 0102974

Environmental Resources Management Southwest, Inc.

15810 Park Ten Place, Suite 300 Houston, Texas 77084-5140 (281) 600-1000G:\2010\0102974\15096H(Att2).doc Tex a s Registered Engineering Firm F-2393 

# Analytical Laboratory Quality Assurance Plan



# (ALS Laboratory Group) Ap pendix A

December 16, 2009 Project No. 0102974

Environmental Resources Management Southwest, Inc.

15810 Park Ten Place, Suite 300 Houston, Texas 77084-5140 (281) 600-1000

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## APPENDIX A - DEFINITIONS FOR QUALITY SYSTEMS FROM NELAC

The following selected definitions are from published texts in the 2003 NELAC Standard, June 5, 2003.

Acceptance Criteria: specified limits placed on characteristics of an item, process, or service defined in requirement documents. (ASQC)

Accuracy: the degree of agreement between an observed value and an accepted reference value. Accuracy includes a combination of random error (precision) and systematic error (bias) components which are due to sampling and analytical operations; a data quality indicator. (QAMS)

Analyst: the designated individual who performs the "hands-on" analytical methods and associated techniques and who is the one responsible for applying required laboratory practices and other pertinent quality controls to meet the required level of quality. (NELAC)

Assessment: the evaluation process used to measure or establish the performance, effectiveness, and conformance of an organization and/or its systems to defined criteria (to the standards and requirements of NELAC). (NELAC)

Assessment Criteria: the measures established by NELAC and applied in establishing the extent to which an applicant is in conformance with NELAC requirements. (NELAC)

Assessment Team: the group of people authorized to perform the on-site inspection and proficiency testing data evaluation required to establish whether an applicant meets the criteria for NELAP accreditation. (NELAC)

Assessor: one who performs on-site assessments of accrediting authorities and laboratories’ capability and capacity for meeting NELAC requirements by examining the records and other physical evidence for each one of the tests for which accreditation has been requested. (NELAC)

Audit: a systematic evaluation to determine the conformance to quantitative and qualitative specifications of some operational function or activity. (EPA-QAD)

Batch: environmental samples that are prepared and/or analyzed together with the same process and personnel, using the same lot(s) of reagents. A preparation batch is composed of one to 20 environmental samples of the same NELAC-defined matrix, meeting the above mentioned criteria and with a maximum time between the start of processing of the first and last sample in the batch to be 24 hours. An analytical batch is composed of prepared environmental samples (extracts, digestates or concentrates) which are analyzed together as a group. An analytical batch can include prepared samples originating from various environmental matrices and can exceed 20 samples. (NELAC Quality Systems Committee)

Blank: a sample that has not been exposed to the analyzed sample stream in order to monitor contamination during sampling, transport, storage or analysis. The blank is subjected to the usual analytical and measurement process to establish a zero baseline or background value and is sometimes used to adjust or correct routine analytical results. Blanks include:

• Equipment Blank: a sample of analyte-free media which has been used to rinse common sampling equipment to check effectiveness of decontamination procedures. (NELAC)

• Field Blank: blank prepared in the field by filling a clean container with pure de-ionized water and appropriate preservative, if any, for the specific sampling activity being undertaken. (EPA OSWER)

• Instrument Blank: a clean sample (e.g., distilled water) processed through the instrumental steps of the measurement process; used to determine instrument contamination. (EPA-QAD)

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### • Method Blank: a sample of a matrix similar to the batch of associated samples (when available) that is free from the analytes of interest and is processed simultaneously with and under the same conditions as samples through all steps of the analytical procedures, and in which no target analytes or interferences are present at concentrations that impact the analytical results for sample analyses. (NELAC)

• Reagent Blank: (method reagent blank): a sample consisting of reagent(s), without the target analyte or sample matrix, introduced into the analytical procedure at the appropriate point and carried through all subsequent steps to determine the contribution of the reagents and of the involved analytical steps. (QAMS)

Blind Sample: a sub-sample for analysis with a composition known to the submitter. The analyst/laboratory may know the identity of the sample but not its composition. It is used to test the analyst’s or laboratory’s proficiency in the execution of the measurement process. (NELAC)

Calibration: set of operations that establish, under specified conditions, the relationship between values of quantities indicated by a measuring instrument or measuring system, or values represented by a material measure or a reference material, and the corresponding values realized by standards (VIM:6.11)

 In calibration of support equipment, the values realized by standards are established through the use of Reference Standards that are traceable to the International System of Units (SI).

 In calibration according to test methods, the values rea lized by standards are typically established through the use of Reference Materials that are either purchased by the laboratory with a certificate of analysis or purity, or prepared by the laboratory using support equipment that has be calibrated or verified to meet specifications.

Calibration Curve: the graphical relationship between the known values, such as concentrations, of a series of calibration standards and their instrument response. (NELAC)

Calibration Method: a defined technical procedure for performing a calibration. (NELAC)

Calibration Standard: a substance or reference material used to calibrate an instrument. (QAMS)

Certified Reference Material (CRM): a reference material one or more of whose property values are certified by a technically valid procedure, accompanied by or tra ceable to a certificate or other documentation which is issued by a certifying body. (ISO Guide 30 - 2.2)

Chain of Custody Form: record that documents the possession of the samples from the time of collection to receipt in the laboratory. This record generally includes: the number and types of containers; the mode of collection; collector; time of collection; preservation; and requested analyses. (NELAC)

Confidential Business Information (CBI): information that an organization designates as having the potential of providing a competitor with inappropriate insight into its management, operation or products. NELAC and its representatives agree to safeguard identified CBI and to maintain all information identified as such in full confidentiality.

Confirmation: verification of the identity of a component through the use of an approach with a different scientific principle from the original method. These may include, but are not limited to:

• Second column confirmation,

• Alternate wavelength,

• Derivatization,

• Mass spectral interpretation

• Alternative detectors or

• Additional cleanup procedures. (NELAC)

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### Conformance: an affirmative indication or judgment that a product or service has met the requirements of the relevant specifications, contract, or regulation; also the state of meeting the requirements. (ANSI/ASQC E4-1994)

Corrective Action: the action taken to eliminate the causes of an existing nonconformity, defect or other undesirable situation in order to prevent recurrence. (ISO 8402)

Critical Finding: a finding or combination of findings that results in a significant negative effect on data quality or defensibility, if not corrected. (NELAC)

Data Audit: a qualitative and quantitative evaluation of the documentation and procedures associated with environmental measurements to verify that the resulti ng data are of acceptable quality (i.e., that they meet specified acceptance criteria). (NELAC)

Data Reduction: the process of transforming raw data by arithmetic or statistical calculations, standard curves, concentration factors, etc., and collation into a more useable form. (EPA-QAD)

Deficiency: See Finding and Critical Finding.

Delegate: any environmental official of the States or the Federal government not sitting in the House of Representatives, who is eligible to vote in the House of Delegates. (NELAC)

Demonstration of Capability: a procedure to establish the ability of the analyst to generate acceptable accuracy. (NELAC)

Denial: to refuse to accredit in total or in part a laboratory applying for initial accreditation or resubmission of initial application. (NELAC)

Detection Limit: the lowest concentration or amount of the target analyte that can be identified, measured, and reported with confidence that the analyte concentration is not a false positive value. See Method Detection Limit. (NELAC)

Document Control: the act of ensuring that documents (and revisions thereto) are proposed, reviewed for accuracy, approved for release by authorized personnel, distributed properly and controlled to ensure use of the correct version at the location where the prescribed activity is performed. (ASQC)

Federal Water Pollution Control Act (Clean Water Act, CWA): the enabling legislation under 33 U.S.C. 1251 et seq ., Public Law 92-50086 Stat. 816, that empowers EPA to set discharge limitations, write discharge permits, monitor, and bring enforcement action for non-compliance. (NELAC)

Field Measurement: The determination of physical, biological, or radiological properties, or chemical constituents; that are measured on-site, close in time and space to the matrices being sampled/measured, following accepted test methods. This testing is performed in the field outside of a fixed-laboratory or outside of an enclosed structure that meets the requirements of a mobile laboratory

Field of Accreditation: (previously Field of Testing) NELAC’s approach to accrediting laboratories by matrix,technology/method and analyte/analyte group. Laboratories requesting accreditation for a matrixtechnology/method-analyte/analyte group combination or for an updated/improved method are required to submit only that portion of the accreditation process not previously addressed (see NELAC, section 1.8 ff). (NELAC)

Field of Proficiency Testing: NELAC’s approach to offering proficiency testing by matrix, technology, and analyte/analyte group.

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### Finding: an assessment conclusion, referenced to a NELAC Standard and supported by objective evidence, that identifies a deviation from a NELAC requirement. See Critical Finding.

Holding Times (Maximum Allowable Holding Times): the maximum times that samples may be held prior to analysis and still be considered valid or not compromised. (40 CFR Part 136)

Inspection: an activity such as measuring, examining, testing, or gauging one or more characteristics of an entity and comparing the results with specified requirements in order to establish whether conformance is achieved for each characteristic. (ANSI/ASQC E4-1994)

Interim Accreditation: temporary accreditation status for a laboratory that has met all accreditation criteria except for a pending on-site assessment which has been delayed for reasons beyond the control of the laboratory. (NELAC)

Internal Standard: a known amount of standard added to a test portion of a sample as a reference for evaluating and controlling the precision and bias of the applied analytical method. (NELAC)

International System of Units (SI): the coherent system of units adopted and recommended by the General Conference on Weights and Measures. (CCGPM) (VIM 1.12)

Laboratory: a body that calibrates and/or tests. (ISO 25)

Laboratory Control Sample (however named, such as laboratory fortified blank, spiked blank, or QC check sample): a sample matrix, free from the analytes of interest, spiked with verified known amounts ofanalytes or a material containing known and verified amounts of analytes. It is generally used to establish intralaboratory or analyst specific precision and bias or to assess the performance of all or a portion of the measurement system. (NELAC)

Laboratory Duplicate: aliquots of a sample taken from the same container under laboratory conditions and processed and analyzed independently. (NELAC)

Legal Chain of Custody Protocols: procedures employed to record the possession of samples from the time of sampling until analysis and are performed at the special request of the client. These protocols include the use of a Chain of Custody Form that documents the collection, transport, and receipt of compliance samples by the laboratory. In addition, these protocols document all handling of the samples within the laborator y. (NELAC)

Limit of Detection (LOD): an estimate of the minimum amount of a substance that an analytical process can reliably detect. An LOD is analyte- and matrix-specific and may be laboratory-dependent.

Limit of Quantitation (LOQ): The minimum levels, concentrations, or quantities of a target variable (e.g., target analyte) that can be reported with a specified degree of confidence

Manager (however named): the individual designated as being responsible for the overall operation, all personnel, and the physical plant of the environmental laboratory. A supervisor may report to the manager. In some cases, the supervisor and the manager may be the same individual. (NELAC)

Matrix: the substrate of a test sample. Field of Accreditation Matrix: these matrix definitions shall be used when accrediting a laboratory (see Field of Accreditation).

• Drinking Water: any aqueous sample that has been designated a potable or potential potable water source.

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### • Non-Potable Water: any aqueous sample excluded from the definition of Drinking Water. Includes surface water, ground water, effluents, water treatment chemicals, and TCLP or other extracts.

• Solid and Chemical Materials: includes soils, sediments, sludges, products and by-products of an industrial process that results in a matrix not previously defined.

• Biological Tissue: any sample of a biological origin such as fish tissue, shellfish, or plant material. Such samples shall be grouped according to origin.

• Air and Emissions: whole gas or vapor samples including those contained in flexible or rigid wall containers and the extracted concentrated analytes of interest from a gas or vapor that are collected with a sorbent tube, impinger solution, filter, or other device. (NELAC) Quality System Matrix: These matrix definitions are an expansion of the field of accreditation matrices and shall be used for purposes of batch and quality control requirements (see Appendix D of Chapter 5). These matrix distinctions shall be used:

• Aqueous: any aqueous sample excluded from the definition of Drinking Water matrix or Saline/Estuarine source. Includes surface water, groundwater, effluents, and TCLP or other extracts.

• Drinking Water: any aqueous sample that has been designated a potable or potential potable water source.

• Saline/Estuarine: any aqueous sample from an ocean or estuary, or other salt water source such as the Great Salt Lake.

• Non-aqueous Liquid: any organic liquid with <15% settleable solids.

• Biological Tissue: any sample of a biological origin such as fish tissue, shellfish, or plant material. Such samples shall be grouped according to origin.

• Solids: includes soils, sediments, sludges and other matrices with >15% settleable solids.

• Chemical Waste: a product or by-product of an industrial process that results in a matrix not previously defined.

• Air and Emissions: whole gas or vapor samples including those contained in flexible or rigid wall containers and the extracted concentrated analytes of interest from a gas or vapor that are collected with a sorbent tube, impinger solution, filter, or other device. (NELAC)

Matrix Spike (spiked sample or fortified sample): a sample prepared by adding a known mass of target analyte to a specified amount of matrix sample for which an independent estimate of Target analyte concentration is available. Matrix spikes are used, for example, to determine the effect of the matrix on a method's recovery efficiency. (QAMS)

Matrix Spike Duplicate (spiked sample or fortified sample duplicate): a second replicate matrix spike prepared in the laboratory and analyzed to obtain a meas ure of the precision of the recovery for each analyte. (QAMS)

May: denotes permitted action, but not required action. (NELAC)

Measurement System: a test method, as implemented at a particular laboratory, and which includes the equipment used to perform the test and the operator(s).

Method Detection Limit: the minimum concentration of a substance (an analyte) that can be measured and reported with 99% confidence that the analyte concentration is greater than zero and is determined from analysis of a sample in a given matrix containing the analyte. (40 CFR Part 136, Appendix B)

Must: denotes a requirement that must be met. (Random House College Dictionary)

National Accreditation Database: the publicly accessible database listing the accreditation status of all laboratories participating in NELAP. (NELAC)

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### National Institute of Standards and Technology (NIST): an agency of the US Department of Commerce’s Technology Administration that is working with EPA, States, NELAC, and other public and commercial entities to establish a system under which private sector companies and interested States can be accredited by NIST to provide NIST-traceable proficiency testing (PT) to those laboratories testing drinking water and wastewater.

National Environmental Laboratory Accreditation Conference (NELAC): a voluntary organization of State and Federal environmental officials and interest groups purposed primarily to establish mutually acceptable standards for accrediting environmental laboratories. A subset of NELAP. (NELAC)

National Environmental Laboratory Accreditation Program (NELAP): the overall National Environmental Laboratory Accreditation Program of which NELAC is a part. (NELAC)

National Voluntary Laboratory Accreditation Program (NVLAP): a program administered by NIST that is used by providers of proficiency testing to gain accreditation for all compounds/matrices for which NVLAP accreditation is available, and for which the provider intends to provide NELAP PT samples. (NELAC)

Negative Control: measures taken to ensure that a test, its components, or the environment do not cause undesired effects, or produce incorrect test results. (NELAC)

NELAC Standards: the plan of procedures for consistently evaluating and documenting the ability of laboratories performing environmental measurements to meet nationally defined standards established by the National Environmental Laboratory Accreditation Conference. (NELAC)

NELAP Recognition: the determination by the NELAP Director that an accrediting authority meets the requirements of the NELAP and is authorized to grant NELAP accreditation to laboratories. (NELAC)

Non-governmental Laboratory: any laboratory not meeting the definition of the governmental laboratory. (NELAC)

Performance Audit: the routine comparison of independently obtained qualitative and quantitative measurement system data with routinely obtained data in order to evaluate the proficiency of an analyst or laboratory. (NELAC)

Positive Control: measures taken to ensure that a test and/or its components are working properly and producing correct or expected results from positive test subjects. (NELAC)

Precision: the degree to which a set of observations or measurements of the same property, obtained under similar conditions, conform to themselves; a data quality indicator. Precision is usually expressed as standard deviation, variance or range, in either absolute or relative terms. (NELAC)

Preservation: refrigeration and/or reagents added at the time of sample collection (or later) to maintain the chemical and/or biological integrity of the sample. (NELAC)

Primary Accrediting Authority: the agency or department designated at the Territory, State or Federal level as the recognized authority with responsibility and accountability for granting NELAC accreditation for a specified field of testing. (NELAC)

Procedure: Specified way to carry out an activity or a process. Procedures can be documented or not. (ISO 9000: 2000 and Note1)

Proficiency Testing : a means of evaluating a laboratory’s performance under controlled conditions relative to a given set of criteria through analysis of unknown samples provided by an external source. (NELAC)

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### Proficiency Testing Oversight Body/Proficiency Testing Provider Accreditor (PTOB/PTPA): an organization with technical expertise, administrative capacity and financial resources sufficient to implement and operate a national program of PT provider evaluation and oversight that meets the responsibilities and requirements established by NELAC standards. (NELAC)

Proficiency Testing Program: the aggregate of providing rigorously controlled and standardized environmental samples to a laboratory for analysis, reporting of results, statistical evaluation of the results and the collective demographics and results summary of all participating laboratories. (NELAC)

Proficiency Testing Study Provider: any person, private party, or government entity that meets stringent criteria to produce and distribute NELAC PT samples, evaluate study results against published performance criteria and report the results to the laboratories, primary accrediting authorities, PTOB/PTPA, and NELAP. (NELAC)

Proficiency Test Sample (PT): a sample, the composition of which is unknown to the analyst and is provided to test whether the analyst/laboratory can produce analytical results within specified acceptance criteria. (QAMS)

Protocol: a detailed written procedure for field and/or laboratory operation (e.g., sampling, analysis) which must be strictly followed. (EPA-QAD)

Quality Assurance: an integrated system of activities involving planning, quality control, quality assessment, reporting and quality improvement to ensure that a product or service meets defined standards of quality with a stated level of confidence. (QAMS)

Quality Assurance [Project] Plan (QAPP): a formal document describing the detailed quality control procedures by which the quality requirements defined for the data and decisions pertaining to a specific project are to be achieved. (EPA-QAD)

Quality Control: the overall system of technical activities whose purpose is to measure and control the quality of a product or service so that it meets the needs of users. (QAMS)

Quality Control Sample: a sample used to assess the performance of all or a portion of the measurement system. QC samples may be Certified Reference Materials, a quality system matrix fortified by spiking, or actual samples fortified by spiking.

Quality Manual: a document stating the management policies, objectives, principles, organizational structure and authority, responsibilities, accountability, and implementation of an agency, organization, or laboratory, to ensure the quality of its product and the utility of its product to its users. (NELAC)

Quality System: a structured and documented management system describing the policies, objectives, principles, organizational authority, responsibilities, accountability, and implementation plan of an organization for ensuring quality in its work processes, products (items), and services. The quality system provides the framework for planning, implementing, and assessing work performed by the organization and for carrying out required QA and QC. (ANSI/ASQC E-41994)

Raw Data: any original factual information from a measurement activity or study recorded in a laboratory notebook, worksheets, records, memoranda, notes, or exact copies thereof that are necessary for the reconstruction and evaluation of the report of the activity or study. Raw data may include photography, microfilm or microfiche copies, computer printouts, magnetic media, including dictated observations, and recorded data from automated instruments. If exact copies of raw data have been prepared (e.g., tapes which have been transcribed verbatim, data and verified accurate by signature), the exact copy or exact transcript may be submitted. (EPA-QAD)

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### Recognition: previously known as reciprocity. The mutual agreement of two or more parties (i.e., States) to accept each other’s findings regarding the ability of envir onmental testing laboratories to meet NELAC standards. (NELAC)

Reference Material: a material or substance one or more properties of which are sufficiently well established to be used for the calibration of an apparatus, the assessment of a measurement method, or for assigning values to materials. (ISO Guide 30-2.1)

Reference Standard: a standard, generally of the highest metrological quality available at a given location, from which measurements made at that location are derived. (VIM-6.08)

Replicate Analyses: the measurements of the variable of interest performed identically on two or more subsamples of the same sample within a short time interval. (NELAC)

Requirement: denotes a mandatory specification; often designated by the term “shall”. (NELAC)

Resource Conservation and Recovery Act (RCRA): the enabling legislation under 42 USC 321 et seq. (1976), that gives EPA the authority to control hazardous waste from the “cradle-to-grave”, including its generation, transportation, treatment, storage, and disposal. (NELAC)

Revocation: the total or partial withdrawal of a laboratory’s accreditation by the accrediting authority. (NELAC)

Safe Drinking Water Act (SDWA): the enabling legislation, 42 USC 300f et seq. (1974), (Public Law 93-523), that requires the EPA to protect the quality of drinking water in the U.S. by setting maximum allowable contaminant levels, monitoring, and enforcing violations. (NELAC)

Secondary Accrediting Authority: the Territorial, State or federal agency that grants NELAC accreditation to laboratories, based upon their accreditation by a NELAP-recognized Primary Accrediting Authority. See also Recognition and Primary Accrediting Authorit y. (NELAC)[1.5.2.3]

Selectivity: (Analytical chemistry) the capability of a test method or instrument to respond to a target substance or constituent in the presence of non-target substances. (EPA-QAD)

Sensitivity: the capability of a method or instrument to discriminate between measurement responses representing different levels (e.g., concentrations) of a variable of interest. (NELAC)

Shall: denotes a requirement that is mandatory whenever the criterion for conformance with the specification requires that there be no deviation. This does not prohibit the use of alternative approaches or methods for implementing the specification so long as the requirement is fulfilled. (ANSI)

Should : denotes a guideline or recommendation whenever noncompliance with the specification is permissible. (ANSI)

Spike: a known mass of target analyte added to a blank sample or sub-sample; used to determine recovery efficiency or for other quality control purposes. (NELAC)

Standard: the document describing the elements of laboratory accreditation that has been developed and established within the consensus principles of NELAC and meets the approval requirements of NELAC procedures and policies. (ASQC)

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### Standard Operating Procedures (SOPs): a written document which details the method of an operation, analysis or action whose techniques and procedures are thoroughly prescribed and which is accepted as the method for performing certain routine or repetitive tasks. (QAMS)

Standard Method: a test method issued by an organization generally recognized as competent to do so.

Standardized Reference Material (SRM): a certified reference material produced by the U.S. National Institute of Standards and Technology or other equivalent organization and characterized for absolute content, independent of analytical method. (EPA-QAD)

Statistical Minimum Significant Difference (SMSD): the minimum difference between the control and a test concentration that is statistically significant; a measure of test sensitivity or power. The power of a test depends in part on the number of replicates per concentration, the significance level selected, e.g., 0.05, and the type of statistical analysis. If the variability remains constant, the sensitivity of the test increases as the number of replicates is increased. (NELAC)

Supervisor (however named): the individual(s) designated as being responsible for a particular area or category of scientific analysis. This responsibility includes direct day-to-day supervision of technical employees, supply and instrument adequacy and upkeep, quality assurance/quality control duties and ascertaining that technical employees have the required balance of education, training and experience to perform the required analyses. (NELAC)

Surrogate: a substance with properties that mimic the analyte of interest. It is unlikely to be found in environment samples and is added to them for quality control purposes. (QAMS)

Suspension: temporary removal of a laboratory’s accreditation for a defined period of time, which shall not exceed six months, to allow the laboratory time to correct deficiencies or area of non-compliance with the NELAC standards. (NELAC)

Technical Director: individual(s) who has overall responsibility for the technical operation of the environmental testing laboratory. (NELAC)

Technology: a specific arrangement of analytical instruments, detection systems, and/or preparation techniques.

Test: a technical operation that consists of the determination of one or more characteristics or performance of a given product, material, equipment, organism, physical phenomenon, process or service according to a specified procedure. The result of a test is normally recorded in a document sometimes called a test report or a test certificate. (ISO/IEC Guide 2-12.1, amended)

Test Method: an adoption of a scientific technique for a specific measurement problem, as documented in a laboratory SOP or published by a recognized authority. (NELAC)

Test Sensitivity/Power: the minimum significant difference (MSD) between the control and test concentration that is statistically significant. It is dependent on the number of replicates per concentration, the selected significance level, and the type of statistical analysis (see Chapter 5, Appendix D, section 2.4.a). (NELAC)

Tolerance Chart: A chart in which the plotted quality control data is assessed via a tolerance level (e.g. ± 10% of a mean) based on the precision level judged acceptable to meet overall quality/data use requirements instead of statistical acceptance criteria (e.g. ± 3 sigma) (applies to radio bioassay laboratories). (ANSI)

Traceability: the property of a result of a measurement whereby it can be related to appropriate standards, generally international or national standards, through an unbroken chain of comparisons. (VIM-6.12)

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### United States Environmental Protection Agency (EPA): the federal governmental agency with responsibility for protecting public health and safeguarding and improving the natural environment (i.e., the air, water, and land) upon which human life depends. (US-EPA)

Validation: the confirmation by examination and provision of objective evidence that the particular requirements for a specific intended use are fulfilled.

Verification: confirmation by examination and provision of evidence that specified requirements have been met. (NELAC) NOTE: In connection with the management of measuring equipment, verification provides a means for checking that the deviations between values indicated by a measuring instrument and corresponding known values of a measured quantity are consistently smaller than the maximum allowable error defined in a standard, regulation or specification peculiar to the management of the measuring equipment. The result of verification leads to a decision either to restore in service, to perform adjustment, to repair, to downgrade, or to declare obsolete. In all cases, it is required that a written trace of the verification performed shall be kept on the measuring instrument’s individual record.

Work Cell: a well-defined group of analysts that together perform the method analysis. The members of the group and their specific functions within the work cell must be fully documented. (NELAC)

Working Range: the difference between the Limit of Quantitation and the upper limit of measurement system calibration.

Sources: 40CFR Part 136 American Society for Quality Control (ASQC), Definitions of Environmental Quality Assurance Terms, 1996 American National Standards Institute (ANSI), Style Manual for Preparation of Proposed American National Standards, Eighth Edition, March 1991 ANSI/ASQC E4, 1994 International Standards Organization (ISO) Guides 2, 30, 8402 National Institute of Standards and Technology (NIST) National Environmental Laboratory Accreditation Conference (NELAC), July 1998 Standards Random House College Dictionary US EPA Quality Assurance Management Section (QAMS), Glossary of Terms of Quality Assurance Terms, 8/31/92 and 12/6/95 US EPA Quality Assurance Division (QAD) Webster’s New World Dictionary of the American Language

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### APPENDIX B – Containers, Preservation and Holding Times Parameter Containers 1 

### Preservative Holding Time 2 Acidity / E305.1 P, G - 250 ml >0 to 6 ° C 14 days Alkalinity / SM 2320B – E310.1 P, G - 250 mL >0 to 6 ° C 14 days Ammonia as N P, G – 500 mL >0 to 6 ° C; H 2 SO 4 to pH<2 28 days

Bacterial Tests (Coliform, Total, Fecal and E. Coli ) PA, G – 250-ml Cool <10 ° C; 0.008% Na 2 S 2 O 3 if Cl 2 present 6 hours

Biological Oxygen Demand (BOD) P, G – 1000 mL >0 to 6 ° C 48 hours (Carbonaceous) Biological Oxygen Demand (CBOD) P, G – 1000 mL >0 to 6 ° C 48 hours

Bromide P, G – 500 mL None required 28 days (Total Organic) Carbon (TOC) / SW 9060 P, G – 250 mL >0 to 6 ° C; HNO 3 or H 2 SO 4 to pH<2 28 days

Chemical Oxygen Demand (COD) P, G – 500 mL >0 to 6 ° C; H 2 SO 4 to pH<2 28 days

Chloride P, G – 500 mL None required 28 days

Color P, G – 500 mL >0 to 6 ° C 48 hours Conductivity (Spec. Conductance) P, G – 250 mL >0 to 6 ° C 28 days (Reactive) Cyanide P, G – 4 oz wm None required 14 days Cyanide (Total and Amenable to Chlorination) P, G - 1000 mL >0 to 6 ° C; NaOH to pH>12; 0.6g ascorbic acid 14 days

Cyanide (Total or Reactive) / Soil P, G – 100 g in 250-ml wm bottle. >0 to 6 ° C 14 days

Fluoride P – 250 mL None required 28 days Hardness P, G – 250 mL HNO 3 or H 2 SO 4 to pH<2 6 months Nitrate as N P, G – 250 mL >0 to 6 ° C 48 hours Nitrate-Nitrite as N P, G – 250 mL >0 to 6 ° C; H 2 SO 4 to pH<2 28 days

Nitrite as N P, G – 250 mL >0 to 6 ° C 48 hours (Total Kjeldahl) Nitrogen P, G – 250 mL >0 to 6 ° C; H 2 SO 4 to pH<2 28 days

Oil and Grease G – 1000 mL wm >0 to 6 ° C; H 2 SO 4 to pH<2 28 days

pH (hydrogen ion) P, G – 250 mL >0 to 6 ° C analyze immediately (Total) Phenols (wet method) G / amber – 1000 mL >0 to 6 ° C; H 2 SO 4 to pH<2 28 days

( ortho- ) Phosphate P, G – 250 mL Filter immediately; >0 to 6 ° C 48 hours

(Total) Phosphate P, G – 250 mL >0 to 6 ° C; H 2 SO 4 to pH<2 28 days

Residue (Total Solids) P, G – 500 mL >0 to 6 ° C 7 days Residue (Dissolved Solids) (TDS) P, G – 500 mL >0 to 6 ° C 7 days Residue (Suspended Solids) (TSS) P, G – 500 mL >0 to 6 ° C 7 days Residue (Settleable) P, G – 1000 mL >0 to 6 ° C 48 hours Residue (Total Volatile) (TVS) P, G – 500 mL >0 to 6 ° C 7 days Residue (Volatile Suspended) (TVSS) P, G – 500 mL >0 to 6 ° C 7 days Silica P – 500 mL >0 to 6 ° C 28 days Chromium VI P, G – 250 mL >0 to 6 ° C 24 hours Chromium VI (soil) P, G – 4 oz wide mouth >0 to 6 ° C 24 hours

### HS-QA Plan, Rev 08.0, Appendix B Effective: 09-01-2009 Page B2 of 3



### © 2009 ALS Laboratory Group All rights reserved. 

### Parameter Containers 1 

### Preservative Holding Time 2

Mercury P, G – 500 mL HNO 3 to pH<2 28 days Mercury (soil) P, G – 4 oz wm bottle None 28 days Metals (except Chromium IV and Hg) P, G – 1000 mL HNO 3 to pH<2 6 months

Metals (except CrVI and Hg)/ (soil) P, G – 50 g in 120 ml bottle None 6 months

TCLP Mercury P, G – 1000 mL >0 to 6 ° C 28 days to extract; 28 days after extraction to analysis TCLP Metals (except Mercury) P, G – 1000 mL >0 to 6 ° C 180 days to extract; 180 days after extraction to analysis Dioxins (TCDD) G – 2 x 1L amber >0 to 6 ° C; 0.008% Na 2 S 2 O 3 if Cl 2 is present 7 days to extract; 40 days after extraction to analysis

Pesticides in Soil (Organochlorine) 8081B G, 4 oz wide mouth >0 to 6 ° C 7 days to extract; 40 days after extraction to analysis Pesticides – water (Organochlorine)/8081B Amber G, 2 x 1L >0 to 6 ° C; adjust pH to 4-5 7 days to extract; 40 days after extraction to analysis PCBs in Soil

SW 8082A G, 4 oz wide mouth >0 to 6 ° C 7 days to extract; 40 days after extraction to analysis PCBs in water SW 8082A / EPA 608 Amber G; 2 x 1L >0 to 6 ° C; adjust pH to 4-5 7 days to extract; 40 days after extraction to analysis (Total) Petroleum Hydrocarbons (TPH) Water – by TX 1005 G – 2 x 40 mL with no headspace >0 to 6 ° C; HCl to pH<2 14 days to extract; 14 days after extraction to analysis Polynuclear Aromatic Hydrocarbons (PAHs) / (soil) G, 4 oz wide mouth >0 to 6 ° C; store in the dark 14 days to extract; 40 days after extraction to analysis Polynuclear Aromatic Hydrocarbons (PAHs) by 8270 (water) Amber G; 2 x 1L >0 to 6 ° C 7 days to extract; 40 days after extraction to analysis Semi-Volatiles (BNAs) in soil G, 4 oz wide mouth >0 to 6 ° C 7 days to extract; 40 days after extraction to analysis Semi-Volatiles (BNAs) Amber G, 2 x 1L >0 to 6 ° C 7 days to extract; 40 days after extraction to analysis Semi-Volatiles (TCLP) G, 4 oz wide mouth >0 to 6 ° C 14 days to TCLP extraction; 7 days from TCLP extraction to BNA extraction; 40 days after

BNA extraction to analysis Total Organic Halogens (TOX) / SW9020 Amber G, 250mL >0 to 6 ° C; H 2 SO 4 to pH<2 28 days

Volatiles (water) SW 8260B G – 3 x 40 mL with no headspace >0 to 6 ° C; HCl to pH<2 14 days

Volatiles (TCLP) G, 2 x 4 oz wide mouth >0 to 6 ° C 14 days to extract; 14 days after extraction to analysis Volatiles (low level soil by 5035A, where soil

likely contain VOCs < 200 ppb) Collect sample using approved coring device

(EnCore, etc) or field preserve 5 gram sample in pre-tared 40 ml VOA vial, containing 5ml of organic

free water, 1g sodium

bisulfate & stir bar >0 to 6 ° C; or freeze 3 samples to –12 to -20 ° C as an alternative to preservation with sodium

bisulfate as a means to inhibit biodegradation. 48 hrs to transfer contents of core device to a 40 ml VOA

vial , containing 5ml of organic free water, 1g sodium

bisulfate & stir bar; analyze transferred sample 14 days from collection

Volatiles (high level soil by 5035A, where soil may contain VOCs >200 ppb) Collect sample using approved coring device (EnCore, etc) or fieldpreserve samples in pretared 60 ml glass bottles >0 to 6 ° C; or freeze 3 samples to –12 to –20 °

C as an alternative to

preservation with methanol as a means to 48 hrs to transfer contents of core device to a 40 ml VOA

vial , containing 10 ml of

purge and trap grade methanol; analyze methanol

### HS-QA Plan, Rev 08.0, Appendix B Effective: 09-01-2009 Page B3 of 3



### © 2009 ALS Laboratory Group All rights reserved. 

### Parameter Containers 1 

### Preservative Holding Time 2 with methanol inhibit biodegradation. preserved sample 14 days from collection Volatiles (Soil) G, 2 oz wide mouth >0 to 6 ° C 14 days

Alpha, Beta, and Radium P, G – 1000 mL HNO 3 to pH<2 6 months

1 

### (P) polyethylene/plastic; (G) Glass ; (PA) Autoclavable Plastic

2 

### Recommended Holding Times from 40CFR136 and/or USEPA SW-846.

3 

### Option to freeze core soil must be approved by regulatory agency or QA Project Plan.

### HS-QA Plan-Rev08.0 -Appendix C Effective: 09/01/2009 Page C1 of 7 ____________

© 2009 ALS Laboratory Group - All Rights Reserved 

# APPENDIX C – Houston Floor Plan and Laboratory Equipment

### HS-QA Plan-Rev08.0 -Appendix C Effective: 09/01/2009 Page C2 of 7 ____________

© 2009 ALS Laboratory Group - All Rights Reserved 

### Table C.1 Calibration And Maintenance Schedule – Houston Facility

Instrument Activity Frequency Documentation

pH electrometers Calibration:

1. pH buffer aliquot are used only

once

2. Buffers used for calibration will bracket the pH of the media, reagent, or sample tested. Before use Worksheet/log book

pH probe / ISE probes Maintenance:

Use manufacturer’s specifications As needed Worksheet/log book

Spectrophotometer. 1. Keep cells clean

2. Service contract. Check wavelength settings with color standards Annually Post service date on Unit

Refrigerators, Freezers, and BOD incubators 1. Thermometers are immersed in liquid to the appropriate immersion line

2. The thermometers are graduated in increments of 1 ° C or less Temperatures are recorded each day in use Worksheet/log book

DO electrometer Calibrate as specified in SOP Before use Worksheet/log book

DO probe Maintenance as specify by manufacturer As needed Worksheet/log book

CETAC Mercury Analyzer Check tubing for wear

Fill rinse tank with 10% HCl

Insert clean drying tube filled with Magnesium Perchlorate

Fill reductant bottle with 10% Stannous Chloride Daily

Daily

Daily

Daily Worksheet/log book

UV-Vis

Spectrophotometer Clean ambient flow cell

Precision check/alignment of flow cell

Wavelength verification check As required

As required

Semi-annually Worksheet/log book

### HS-QA Plan-Rev08.0 -Appendix C Effective: 09/01/2009 Page C3 of 7 ____________

© 2009 ALS Laboratory Group - All Rights Reserved 

### Table C.1 Calibration And Maintenance Schedule – Houston Facility

Instrument Activity Frequency Documentation

ICP/MS Check pump tubing

Check liquid argon supply

Check fluid level in waste container

Check filters

Clean or replace filters

Check torch

Check sample spray chamber for debris

Clean and align nebulizer

Check entrance slit for debris

Change printer ribbon

Replace pump tubing Daily

Daily

Daily

Weekly

As required

Daily

Monthly

Monthly

Monthly

As required

As required Worksheet/log book

GC/MS Systems Ion gauge tube degassing

Pump oil-level check

Diffusion Pump oil changing

Analyzer bake-out

Analyzer cleaning

Resolution adjustment – Tune MSD

Auto sampler maintenance

Purge and Trap maintenance As required

Monthly

Annually

As required

As required

As required

As required

As required Worksheet/log book

Electron Capture

Detector (ECD) Detector wipe test (Ni-63)

Detector cleaning Semi-annually

As required Worksheet/log book

Gas Chromatograph Compare standard response to previous day or since last initial calibration

Check carrier gas flow rate in column

Check temp. of detector, inlet, Daily

Daily via use of known RT

Daily Worksheet/log book

### HS-QA Plan-Rev08.0 -Appendix C Effective: 09/01/2009 Page C4 of 7 ____________

© 2009 ALS Laboratory Group - All Rights Reserved 

### Table C.1 Calibration And Maintenance Schedule – Houston Facility

Instrument Activity Frequency Documentation

Gas Chromatograph

continued column oven

Septum replacement

Glass wool replacement

Check system for gas leaks with SNOOP

Check for loose/fray wires and insulation

Bake injector/column

Change/remove sections of guard column

Replace connectors/liners

Change/replace column(s)

Autosampler Maintenance As required

As required

W/cylinder change as required

Monthly

As required

As required

As required

As required

As required

Flame Ionization

Detector (FID) Detector cleaning As required Worksheet/log book

Photoionization

Detector (PID) Change O-rings

Clean lamp window As required

As required Worksheet/log book

HPLC / IC units Change guard columns

Change lamps

Change pump seals

Replace tubing

Change fuses in power supply

Filter all samples and solvents

Change autosampler rotor/stator As required

As required

Semi-annually or as required

As required

As required

Daily

As required Worksheet/log book

TOC Analyzer Check Sample Delivery Tubing

Check Gas and Reagent supplies

Replace Catalyst Daily

Daily

As required

### HS-QA Plan-Rev08.0 -Appendix C Effective: 09/01/2009 Page C5 of 7 ____________

© 2009 ALS Laboratory Group - All Rights Reserved 

### Table C.1 Calibration And Maintenance Schedule – Houston Facility

Instrument Activity Frequency Documentation

IR Detector cleaning As required

Balances Class "S" traceable weight check

Clean pan and check if level

Field service Daily, when used

Daily

At least annually

Conductivity Meter 0.01 M KCl calibration

Conductivity cell cleaning Daily, when used

As required

Turbidimeter Check light bulb Daily, when used

Deionized/

Water Check resistance

Check deionizer light

Monitor for VOA's

Replace cartridge & large mixed bed resins Daily

Daily

Daily

As required

Drying Ovens Temperature monitoring

Temperature adjustments Daily

As required

Refrigerators/

Freezers Temperature monitoring

Temperature adjustment

Defrosting/cleaning Daily

As required

As required

pH/Specific Ion

Meter Calibration/check slope

Clean electrode Daily

As required

BOD Incubator Temperature monitoring

Coil and incubator cleaning Daily

Monthly

Table C.3 – Houston Lab Item Description Manufacturer/Model Condition / Year Installed Approx. Age-Years 

### GC with FID (FID #2) HP 5890A, HP7673 Injector Used / good – 11/1999 9 GC with FID/FPD (FID #1) HP 5890A, HP7673A Injector Used / good – 11/1999 8 GC with FID (FID#3) HP 5890A Series II, HP7673A Injector Used / good – 09/2000 8.5 GC with FID (FID #4) / with Headspace Analyzer HP 5890A Series II / HTA HT280T Headspace Autosampler Used / good – 02/2001 / Headspace – new - 2007 7 / 2

GC with FID, Dual Thu-put (FID#7 / #8) Agilent 6890N, Dual Column/FID N ew / Excellen t – 02/2006 2.5

### HS-QA Plan-Rev08.0 -Appendix C Effective: 09/01/2009 Page C6 of 7 ____________

© 2009 ALS Laboratory Group - All Rights Reserved Table C.3 – Houston Lab Item Description Manufacturer/Model Condition / Year Installed Approx. Age-Years 

### GC with FID, Dual Thu-put (FID#10 / #11) Agilent 6890N, Dual Column/FID N ew / Excellent – 02/2006 2.5

GC with FID (FID#6- GRO) HP 5890 Series II, Used/ good – 09/2000 8.5 Purge & Trap Conc, for GRO OI 4560 (for FID #6) Used/ good – 09/2000 8.5 Purge & Trap Concentrator OI 4552 Autosampler (for FID 6 ) Used/ good – 09/2000 8.5 GC with FID (FID#9- GRO) Agilent 6890 GC Used/ good – 09/2006 2.5 Purge & Trap Concentrator Tekmar 3100 (for FID #9 – GRO) New / excellent – 04/2004 4 Closed Loop Multi-sampler OI 4552 Multi-sampler (FID#9) Used/ good – 09/2000 7.5 GC Dual PID (BTEX 1&2) HP 5890 Series II Used/ good – 09/2000 8.5 Purge & Trap Concentrator Tekmar 3000 (BTEX 1&2) Used/ good – 09/2000 8.5 Closed Loop Multi-sampler Varian Archon Sampler (BTEX 1&2) Used/ good – 09/2000 8.5 GC Dual PID (BTEX 3&4) HP 5890 Series II Used / good – 02/2001 8 Closed Loop Multi-sampler Varian Archon Sampler (BTEX 3&4) New / excellent – 08/2001 7.5 Purge & Trap Tekmar 3000 New / excellent – 02/2001 8 GC Dual ECD (ECD 1&2) HP 5890 Series II, HP7673 Injector Used / good – 02/2000 9 GC Dual ECD (ECD 3&4) HP 5890 Series II, HP7673 Injector Used / good – 07/2000 8.5 GC Dual ECD (ECD 5&6) HP 5890 Series II, HP7673 Injector Used / good – 07/2000 8.5 GC Dual ECD (ECD 7&8) Agilent 6890N, dual micro ECDs, Agilent 7683B Injector New / excellent – 05/2005 3.5

GC Dual ECD (ECD 9&10) HP 5890 Series II, HP7673 Injector Used / good – 05/2007 7 GC/MSD (VOA1) HP5890 Series II with HP5972A MSD Used / good – 12/1999 9 Closed Loop Multi-sampler Varian Archon Multi-sampler (VOA1) New / excellent – 02/2001 8 Purge & Trap Concentrator HP Purge and Trap (VOA 1) Used / good – 12/1999 9 GC/MSD II (VOA2) Agilent 6890 GC with 5973A MSD New / excellent – 07/2000 9 Closed Loop Multi-sampler Varian Archon Multi-sampler (VOA2) New / excellent – 07/2000 9 Purge & Trap Concentrator Tekmar Dohrman Velocity (VOA2) New / excellent – 04/2004 5 GC/MSD II (VOA3) HP5890 Series II with HP5972A MSD Used / good – 12/1999 9 Closed Loop Multi-sampler Varian Archon Multi-sampler (VOA3) New / excellent – 06/2002 6.5 Purge & Trap Concentrator Tekmar Dohrmann 3100 (VOA3) New / excellent – 06/2002 6.5 GC/MSD II (VOA4) Agilent 6890 GC with 5973 Inert MSD New / excellent – 04/2004 5 Closed Loop Multi-sampler Varian Archon Multi-sampler (VOA4) New / excellent – 04/2004 5 Purge & Trap Concentrator Tekmar Dohrmann Velocity (VOA4) New / excellent – 04/2004 5 GC/MSD II (VOA5) Agilent 6890 GC with 5975 Inert MSD New / excellent – 03/2005 4 Closed Loop Multi-sampler Tekmar/Dohrmann SOLATek (VOA5) New / excellent – 03/2005 4 Purge & Trap Concentrator Tekmar Dohrmann Velocity (VOA5) New / excellent – 03/2005 4 GC/MSD II (VOA5) Agilent 6890 GC with 5975 Inert MSD New / excellent – 02/2009 <1 Closed Loop Multi-sampler Varian Archom (VOA5) New / excellent – 02/2009 <1 Purge & Trap Concentrator Tekmar Dohrmann Velocity (VOA5) New / excellent – 02/2009 <1 GC/MSD II (SV2) Agilent 6890 Plus with 5973 MSD New / excellent – 07/2000 8.5 GC/MSD III (SV3) Agilent 6890 Plus with 5973 MSD New / excellent – 03/2002 7 GC/MSD IV (SV4) Agilent 6890 Plus with 5973 MSD New / excellent – 08/2004 4.5 GC/MSD V (SV5) Agilent 6890 Plus with 5973 MSD N ew / excellen t – 06/2006 5.5 Soxtec Extraction Unit (1) Model 2055 (Total Ext. Capacity = 6) New / good – 6/2002 6.5 Soxtec Extraction Unit (2) Model 2055 (Total Ext. Capacity = 6) New / good – 7/2008 <1 HPLC – with UV and Fluorescence detectors Agilent 1100 Series HPLC, with autosampler New / excellent – 03/ 2002 7

UV/VIS Shimadzu UV-2450 N ew / Excellen t – 02/2006 3 Ion Chromatograph Dionex ICS-3000 N ew / Excellen t – 11/2006 3

### HS-QA Plan-Rev08.0 -Appendix C Effective: 09/01/2009 Page C7 of 7 ____________

© 2009 ALS Laboratory Group - All Rights Reserved Table C.3 – Houston Lab Item Description Manufacturer/Model Condition / Year Installed Approx. Age-Years 

### ICP/MS Agilent 7500 Series ORC New / excellent – 08/2003 5.5 ICP/MS Agilent 7500 Series ORCE New / excellent – 04/2005 4 ICP/MS Agilent 7500 Series ORCE New / excellent – 03/2007 3 Mercury Analyzer CETAC Technologies M-6000A New / excellent – 01/2000 9 TOC Analyzer (for waters) OI 1010 TOC Analyzer &Autosampler New / excellent – 02/2005 4 TOC Analyzer (for soils) OI TOC Solids Analyzer New / excellent – 07/2003 5.5 Cyanide Distillation Environmental Express 10 position New / excellent – 06/2002 6.5 Ammonia Distillation Environmental Express 10 position New / excellent – 06/2003 5.5 Vortex Fisher Genie 2 New / excellent – 01/2002 7 Stirrer Labline Multi Magnestir New / excellent – 01/2000 9 Centrifuge (4) IES Used/good – 01/2000 9 Water Bath Precision Used/good – 01/2000 9 N itrogen Evaporato r Organomation N-Evap Used/good – 01/2001 8 Turbo Vap II (2 units) Caliper Life Sciences, Turbo Vap II New / excellent – 03/2006 3 3-D Shaker Glass-col New / excellent – 01/2002 7 Multi-tube Vortexer VWR VX 2500 New / excellent – 01/2002 7 GPC OI Analytical Autoprep 2000 New / excellent – 06/2002 6.5 Furnace Thermodyne New / excellent – 01/2002 7 Furnace Thermodyne New / excellent – 07/2008 <1 Sonicator Ultrasonic Heat System XL New / excellent – 01/2001 8 Ultrasonic Bath (3) Branson 2200 Used / good – 12/1999 9 Hot Plate (2) Corning PC 104 Used / good – 12/1999 9 Hot Block Digesters (2) Environmental Express New / excellent – 01/2000 & 07/2001 9 & 8

Hot Block Digesters (2) Environmental Express New / excellent – 04/2007 2 Analytical balances (6) Mettler AE 200 (2), Mettler AE 163(2), Fisher A160, Cahn Micro-balance (1) Used / good – 01/2000 9

Analytical balance Ohaus ScoutPro 400g N ew / Excelent – 11/2006 2 Analytical balance Shimadzu UniBlock AUX220 N ew / Excellen t – 02/2006 2 Specific Ion/pH Meter (2) Fisher Accumet AR-50 New / excellent – 01/2000 9 Specific Ion/pH Meter Fisher Accumet AR-50 New / excellent – 04/2008 <1 PH Meter Mettler Toledo SevenEasy New / Excellent – 11/2006 2 ZHE Extraction Units (9) Environmental Express New / excellent – 01/2002 6 Top Loading balance (1) Mettler 4400 Used / good – 01/2000 8 Top Loading balance (1) Denver Instruments APX-1502 New / excellent – 05/2003 5 Forced Air Oven VWR FM 1390 Used / good – 12/1999 9 Drying Oven (2) VWR Model 1326 New / excellent – 12/2005 3 Full Size Refrigerator/Freezer (3) Labline Explosion Proof Used / good – 12/1999 9 13' x 40' Walk-in Refrigerator Thermo-Kool New / excellent – 04/2007 2 8' x 10' Walk-in Refrigerator N orLake Used / good – 12/1999 9 8' x 10' Walk-in Freezer N orLake Used / good – 6/2002 6 Refrigerators (5) Various Used / good – 06/2001 8 Freezer (3) Hussmann/Tappan Used / good – 12/1999, 4/2002 9 & 7 ELIMS Database e-LIMS N ew / excellen t – 7/2004 4 Computer Servers (4) HP and Compaq N ew / excellen t – 12/1999 9 Computer Server (Target) e-Lab Analytical, Inc. N ew / excellen t – 7/2005 4 SQL Server (eLIMS) e-Lab Analytical, Inc. N ew / excellen t – 7/2005 4

### HS-QA Plan-Rev08.0 -Appendix C Effective: 09/01/2009 Page D1 of 4

© 2009 ALS Laboratory Group - All Rights Reserved 

# APPENDIX D – ALS Laboratory Group Standard Operating Procedures

SOP Number Rev. Number SOP Title – Houston Facility

General HS-GEN 001 07 Preparation / Management of Standard Operating Procedures HS-GEN 002 07 Laboratory Ethics, Accountability and Responsibility HS-GEN 003 06 Glassware Cleaning HS-GEN 004 05 Client Confidentiality of Electronic Data Transfers HS-GEN 005 05 Departures from Approved Procedures
HS-GEN 006 03 Resources Review HS-GEN 007 04 Subcontract Sample Submittal HS-GEN 008 04 QC Criteria Development Where No Regulatory Criteria Exist
Administrative HS-ADM 003 07 Work Order Reporting
HS-ADM 004 05 Complaint Resolution Quality Assurance HS-QS 001 06 Chemical Purchase/Receipt; Chemical Prep., Storage & Tracking HS-QS 002 04 Changing Analytical Results/Report Revision HS-QS 003 06 Nonconformance Corrective Action Reporting HS-QS 004 07 Control Charting HS-QS 005 04 Validation of New Instrumentation and New Methods HS-QS 006 04 Limit of Detection and Limit of Quantitation HS-QS 007 06 Reagent Water HS-QS 008 06 Container Sub-sampling - Metals, Inorganics, Semivolatile Organics HS-QS 009 06 Data Reduction, Review and Validation HS-QS 010 01 Container Sub-sampling-Volatile Organics, SW5035A HS-QS 011 05 Records Archival HS-QS 012 04 Internal Audits HS-QS 013 05 Employee Training HS-QS 014 06 Laboratory Records Control Procedures HS-QS 015 01 Data Integrity System HS-QS 016 05 Manual Integration Policy HS-QS 017 02 Quality Assurance Management Review HS-QS 018 03 Sporadic Marginal Exceedance HS-QS 019 02 Estimation of Measurement Uncertainty Client Services - Sample Management- Safety HS-SM 001 07 Sample Log-in Procedures
HS-SM 002 05 Bottle Orders HS-SM 003 03 LIMS Login Procedures HS-SAF 001 04 Waste Disposal Procedures Information Technology HS-IT 001 04 LIMS Raw Data and Data Integrity

### HS-QA Plan-Rev08.0 -Appendix C Effective: 09/01/2009 Page D2 of 4

© 2009 ALS Laboratory Group - All Rights Reserved 

### SOP Number Rev. Number SOP Title – Houston Facility

HS-IT 002 03 Computer Software Installation and Maintenance HS-IT 003 03 LIMS System Security HS-IT 004 01 Electronic Data Archival and Storage HS-IT 005 01 Electronic Time Changes Equipment HS-EQ 001 07 Balance Calibration and Use HS-EQ 002 08 Thermometer Calibration and Temperature Monitoring HS-EQ 003 06 Lab Volumetric Ware Calibration HS-EQ 004 05 Preventative Maintenance Metals Preparation and Analysis HS-MET 001 08 Hot Block Metals Digestion - Solids Samples HS-MET 002 06 Hot Block Metals Digestion - Aqueous Samples HS-MET 003 07 ICP-MS Analysis – SW6020A – EPA 200.8 HS-MET 004 08 Mercury Analysis for Aqueous Samples – 7470A – EPA 245.2 HS-MET 005 08 Mercury Analysis for Solid Samples – 7471B General Chemistry HS-WC 001 06 Alkalinity Forms by SM 2320B / E310.1 HS-WC 002 06 pH (Aqueous SW9040C – EPA150.1 / soils SW 9045D) HS-WC 003 07 Total Suspended Solids, TSS- EPA 160.2 HS-WC 004 02 Analysis of Fluoride by ISE Method SM 4500 F B & C HS-WC 005 03 Free Carbon Dioxide, SM 4500 CO2 D HS-WC 006 06 Ortho Phosphorus, SM 4500 P / EPA 365.3 

### HS-WC 007 05 Analysis of Fluoride by ISE Method SW9214 HS-WC 008 06 Chrome VI Analysis, SW 7196A & SM3500-Cr B HS-WC 009 05 Chrome VI – Preparation of Soils , SW 3060A HS-WC 010 03 Ferrous Iron, SM 3500 Fe D HS-WC 011 04 Specific Conductivity, EPA120.1 / SW9050A / SM2510 B HS-WC 012 07 Total Dissolved Solids, TDS- SM 2540 C HS-WC 013 06 Total, Fixed and Volatile Solids, Aqueous Samples- SM 2540 B & E HS-WC 014 06 Percent Solids, Percent Moisture, Soils - HS-WC 015 04 Total Phosphorus, EPA 365.3 HS-WC 016 03 Settleable Solids, SM 2540 F HS-WC 017 04 Silica (SiO2), SM 4500 Si D HS-WC 018 05 Sulfide, Iodometric Method, SM 4500 S -2 

### F HS-WC 019 03 Sulfite, Iodometric Method, SM 4500 SO 3 -2 

### B HS-WC 020 05 Cyanide, Total SW9010/SW9014 / E335.3 / SM4500 CN C&E HS-WC 021 04 Total Organic Carbon, Aqueous SM5310C / SW9060A HS-WC 022 03 Total Organic Carbon, Soils - SW9060 Modified HS-WC 023 02 Color, SM 2120B HS-WC 025 03 Chemical Oxygen Demand, Hach 8000 HS-WC 026 03 Ammonia as N, SM 4500-NH3 B / F

### HS-QA Plan-Rev08.0 -Appendix C Effective: 09/01/2009 Page D3 of 4

© 2009 ALS Laboratory Group - All Rights Reserved 

### SOP Number Rev. Number SOP Title – Houston Facility

HS-WC 027 02 Ammonia as N, by ISE, SM 4500-NH3 B / D
HS-WC 028 03 Residual Chlorine - SM 4500 Cl F HS-WC 029 03 Total Recoverable Phenols, EPA 420.4 – SW9065 HS-WC 030 01 Turbidity by Nephelometry HS-WC 031 Nitrite as N, SM 4500-N02 B / EPA 354.1 HS-WC 032 02 Cyanide, Weak Acid Dissociable, SM 4500 CN – I HS-WC 033 03 Total Kjeldahl Nitrogen, EPA 351.2 / SM 4500-NH3 D HS-WC 036 03 Oil and Grease, SPE - EPA 1664 HS-WC 037 02 Flash Point by D93-02a / SW1010 Ignitability HS-WC 040 02 TOC on Solids, Walkley-Black HS-WC 041 01 Ignitability of Solids, SW1030 HS-WC 042 01 Paint Filter Liquids Test, SW9095B HS-WS 043 01 Dissolved Qxygen SM4500-O G & EPA360.1 HS-BIO 003 02 BOD and CBOD (EPA 405.1 & SM5210 B)

HS-IC 001 06 Anions by Ion Chromatography, SW-9056A-EPA 300.0 HS-IC 002 02 Perchlorate by Ion Chromatography, EPA 314 Leachate Preparation Methods HS-LEACH 001 01 TCEQ 7 Day Leachate Procedure

HS-TCLP 001 06 Toxic Characteristic Leaching Procedure (TCLP) – ZHE HS-TCLP 002 05 Toxic Characteristic Leaching Procedure (TCLP) – SV/ Metals HS-SPLP 001 06 Synthetic Characteristic Leaching Procedure (SPLP) – ZHE HS-SPLP 002 05 Synthetic Characteristic Leach. Procedure (SPLP) – SV/ Metals Organic Preparation Methods HS-EXT 001 09 Separatory Funnel Extraction of Aqueous Samples
HS-EXT 002 09 Automated Soxhlet Extraction of Solids/Soils – SW3541 HS-EXT 003 05 Sep. Funnel Extraction – Herbicides from Waters, SW 8151A HS-EXT 004 05 Sonication Extraction- Herbicides-Soils, SW8151A
HS-EXT 005 07 Extraction of TPH from Waters and Soil - TX1005
HS-EXT 006 04 Fractionation of TPH from Waters and Soil - TX1006
HS-EXT 008 04 LL Sonication Extraction – DRO - Soils - SW3550C
HS-EXT 009 04 LL Extraction of DRO From Waters - SW3510C HS-EXT 011 03 GPC Cleanup - SW3640A HS-EXT 013 02 Salting Out Extraction of Explosives from Waters by SW8330A HS-EXT 014 03 Extraction of Explosives from Soils by SW8330A HS-EXT 015 01 Extraction – Derivatization of Formaldehyde – Soils/Waters - SW8315A HS-EXT 017 01 Massachusetts EPH, extraction – fractionation, water & soil HS-EXT 020 01 HEM from soils by SW9071B
GC / HPLC Methods HS-BTEX 001 06 BTEX Analysis in Solid and Aqueous Samples – SW8021B HS-GRO 001 03 GRO by Purge & Trap – Soils & Waters – GC/FID – SW8015C

### HS-QA Plan-Rev08.0 -Appendix C Effective: 09/01/2009 Page D4 of 4

© 2009 ALS Laboratory Group - All Rights Reserved 

### SOP Number Rev. Number SOP Title – Houston Facility

HS-GRO 002 01 Massachusetts VPH HS-GCFID 001 07 TCEQ 1005 -Total Petroleum Hydrocarbons HS-GCFID 003 05 Low Level DRO, ORO by GC/FID SW-8015C HS-GCFID 005 03 Nonhalogenated Organics by Dir. Inj GCFID - 8015 Modified HS-GCFID 006 03 Fractionation Analysis of TPH by TCEQ 1006
HS-GCFID 009 01 Massachusetts EPH HS-GCFID 010 01 RSK-175, Headspace Analysis, Methane, Ethane, Ethene HS-GCECD 001 07 Organochlorine Pesticides by GC/ECD – 8081B – EPA 608 HS-GCECD 002 08 Polychlorinated Biphenyls (PCBs) by GC/ECD – 8082A – EPA 608 HS-GCECD 003 06 Herbicides by GC/ECD - 8151A HS-GCECD 004 03 EDB and DBCP by GC/ECD - 8011 / EPA 504.1 HS-HPLC 002 02 Acrylamide by SW 8316 HS-HPLC 003 03 Analysis of Explosives by SW8330A HS-HPLC 004 01 Formaldehyde by SW8315A
GC/MS Methods HS-MSSV 001 09.1 Semivolatile Organic Compounds by GC/MS by 8270D – EPA 625 HS-MSSV 003 04 Low Level SV Organic Compounds by GC/MS - 8270D Modified HS-MSV 001 09.1 Volatile Organics Compounds by GC/MS 8260C – EPA 624 Miscellaneous SOP for State Specific Programs HS-LaDNR 001 03 Sample Preparation HS-LaDNR 002 03 Cation Exchange Capacity - Exchangeable Cations - ESP
HS-LaDNR 003 03 Saturated Paste - Saturation Point of Soils - LA DNR 29B
HS-LaDNR 004 02 True Total Barium - LA DNR 29B
HS-LaDNR 005 02 Leachate Test of Soil - LA DNR 29B HS-LaDNR 006 02 Oil and Grease from 7 Day Leachate Test of Soil - LA DNR 29B
HS-LaDNR 007 01 Oil and Grease from Soil - LA DNR 29B HS-LaDNR 008 01 LaDNR l:1 Aqueous Extract HS-LaDNR 009 01 LaDNR Soil pH HS-LaDNR 010 01 LaDNR Electrical Conductivity

### HS-QA Plan-Rev08.0 -Appendix C Effective: 09/01/2009 Page E1 of 18

© 2009 ALS Laboratory Group - All Rights Reserved Table E.1.1 Calibration Summary & QC Procedures - Colorimetric Methods (SW 7196, etc), Houston Facility

QC Check Minimum Frequency Acceptance Criteria Corrective Action Initial multipoint calibration (minimum 5 standards and a blank). initial calibration prior to sample analysis. Correlation coefficient >0.995 for linear regression. Correct problem then repeat initial calibration.

Second-source calibration check standard. Once per initial calibration, prior to sample analysis. Analyte within + 10% of expected value. Correct problem then repeat initial calibration.

Calibration verification. After every 15 samples and at the end of the analysis sequence. The analyte within + 10% of expected value. Correct problem then repeat ICAL or CCV and reanalyze all samples since last successful CCV. Demonstrate ability to generate acceptable accuracy and precision using four replicate LCS. Once per analyst. QC acceptance criteria, Table G.1.1 Recalculate results; locate and fix system problem and rerun demonstration for analytes that did not meet criteria.

Method blank. One per prep batch. No analyte detected Above 1⁄2 LOQ. or .> 5% of regulatory limit or >5% of target analyte detected in a sample. Correct problem then reprep and analyze method blank and all samples in the affected batch.

LCS for the analyte. One LCS per prep batch. QC acceptance criteria, Table G.1.1 Correct problem then reprep and analyze the LCS and all samples in the affected prep batch.

MS/MSD. One MS/MSD per every 20 field samples per matrix. QC acceptance criteria, Table G.1.1; RPD < 20% Describe in Laboratory Review Checklist.

LOD study. Once per 12 month period. LODs established shall be < 1/2 the LOQs in Table F.1 None.

Table E.1.2 Calibration Summary and QC Procedur es for EPA Method 300.0 / SW9056A – Houston Facility

QC Check Minimum Frequency Acceptance Criteria Corrective Action
Minimum five-point initial calibration for all analytes. Initial calibration prior to sample analysis. Calibration factor or Linear least squares regression - r > 0.995 Correct problem then repeat initial calibration.

Second-source (ICV) calibration verification, all analytes. Once per five-point initial calibration. All analytes within ± 10% of expected value. Correct problem then repeat initial calibration.

Retention time window verified for each analyte. Each initial calibration Verify RT ± 3 times standard deviation for each analyte average retention time over 8 to 24 hr period after ICAL. CCVs must fall within the RT window Correct problem then reanalyze all samples analyzed since the last retention time check.

### HS-QA Plan-Rev08.0 -Appendix C Effective: 09/01/2009 Page E2 of 18

© 2009 ALS Laboratory Group - All Rights Reserved Table E.1.2 Calibration Summary and QC Procedur es for EPA Method 300.0 / SW9056A – Houston Facility

QC Check Minimum Frequency Acceptance Criteria Corrective Action

Calibration verification (CCV and CCB) CCV and CCB after every 10 injections and at the end of the analysis
sequence. All analytes within ± 10% of expected value for CCV; no analytes in CCB above 2-3 times the LOD. Correct problem, repeat calibration verification and reanalyze all samples since last successful calibration verification.
Demonstration of ability to generate acceptable accuracy and precision using four replicate LCS. Annually, Once per analyst. LCS recovery ± 10% of expected value. Recalculate results; locate and fix problem with system, then rerun demonstration for those analytes not meeting criteria.

Method blank. One per analytical batch of 10 (E300.0) or 20 (SW9056A) or less. No analytes detected above the LOQ or .> 5% of regulatory limit or >5% of target analyte detected in a sample. Correct problem, and then reanalyze method blank and all samples processed with the contaminated blank.
LCS for all analytes. One LCS per analytical batch of 10 (E300) or 20 (SW9056A) field samples. Recovery ± 10% of expected value). Correct problem, and then reanalyze the LCS and all samples in the affected analytical batch.

MS One MS per every 10 (E300) or every 20 (SW9056A) field samples per matrix. Advisory acceptance recovery ± 20% of expected value Describe in Laboratory Review Checklist.

Duplicate or MSD One duplicate (or MSD) per every 10 (E300) or every 20 (SW9056A) field samples per matrix. RPD <20% Describe in Laboratory Review Checklist.

LOD Study Once per 12 month period Detection limits established shall be ≤ 1⁄2 the LOQs

Table E.1.3 Calibration Summary & QC Procedures - Ion Se lective Electrode (e. g. SM 4500-NH3 D) Houston Facility

QC Check Minimum Frequency Acceptance Criteria Corrective Action
Minimum five-point initial calibration for the ISE analyte. Upon initial instrument set-up, major maintenance (e.g. new ISE probe installation) or each time a CCV fails to meet criteria. Slope in range of 55 to 59 mV Correct problem then repeat initial calibration.

Second-source (ICV) calibration verification, all analytes. Once per initial calibration curve All analytes within ± 10% of expected value. Correct problem then repeat initial calibration.

Calibration verification (CCV and CCB) CCV and CCB after every 10 injections and at the end of the analysis
sequence. All analytes within ± 10% of expected value for CCV; no analytes in CCB above the times the LOQ. Correct problem, repeat CCV and reanalyze all affected samples since last successful CCV.

### HS-QA Plan-Rev08.0 -Appendix C Effective: 09/01/2009 Page E3 of 18

© 2009 ALS Laboratory Group - All Rights Reserved Table E.1.3 Calibration Summary & QC Procedures - Ion Se lective Electrode (e. g. SM 4500-NH3 D) Houston Facility

QC Check Minimum Frequency Acceptance Criteria Corrective Action
Demonstration of ability to generate acceptable accuracy and precision using four replicate LCS. Annually, Once per analyst. LCS recovery ± 10% of expected value. Recalculate results; locate and fix problem with system, then rerun demonstration for those analytes not meeting criteria.

Method blank. One per analytical batch of 10 (E300.0) or 20 (SW9056A) or less. No analytes detected above the LOQ or .> 5% of regulatory limit or >5% of target analyte detected in a sample. Correct problem, and then reanalyze method blank and all samples processed with the contaminated blank.
LCS for all analytes. One LCS per analytical batch of 10 (E300) or 20 (SW9056A) field samples. Recovery ± 10% of expected value). Correct problem, and then reanalyze the LCS and all samples in the affected analytical batch.

MS One MS per every 10 (E300) or every 20 (SW9056A) field samples per matrix. Advisory acceptance recovery ± 20% of expected value Describe in Laboratory Review Checklist.

Duplicate or MSD One duplicate (or MSD) per every 10 (E300) or every 20 (SW9056A) field samples per matrix. RPD <20% Describe in Laboratory Review Checklist.

LOD Study Once per 12 month period Detection limits established shall be ≤ 1⁄2 the LOQs

Table E.2.1 - Summary of Calibration and QC Procedures for ICP/MS Methods SW6020A and 200.8 Houston Facility

QC Check Minimum Frequency Acceptance Criteria Corrective Action
MS tuning sample. Prior to initial calibration Tune requirements for both EPA 200.8 and SW6020A must be met (see §11.3 of SOP MET-003, current revision) Retune instrument then reanalyze tuning solution.

Initial calibration (minimum 4 standards and a blank). Daily initial calibration prior to sample analysis. r > 0.998. N/A.

Initial Calibration verification (second source). Daily after initial calibration All analytes within ±10% of expected value. Correct problem and repeat initial calibration.

Low Level ICV (LLICV). Daily, after ICV All analytes should within ±30% of expected value. Rinse system again , and repeat LLICV Calibration blank (ICB and CCB). Run the ICB after the ICV (Before analyzing samples) and run a CCB after each CCV, The CCV is run every 10 samples and at end of the analysis sequence. Assess analytes detected >LOQ (or MQL). If any >MQL, Correct problem then re-analyze the CCB and any affected previous samples having detections >MQL.

### HS-QA Plan-Rev08.0 -Appendix C Effective: 09/01/2009 Page E4 of 18

© 2009 ALS Laboratory Group - All Rights Reserved Table E.2.1 - Summary of Calibration and QC Procedures for ICP/MS Methods SW6020A and 200.8 Houston Facility

QC Check Minimum Frequency Acceptance Criteria Corrective Action

Calibration verification (Instrument Check Standard). Before beginning a sample run, after every 10 samples and at the end of the analysis sequence. All analyte(s) within + 10% of expected value. Correct problem then repeat ICAL or CCV and reanalyze all samples since last successful CCV. Demonstrate ability to generate acceptable accuracy and precision using four replicate LCS. Once per analyst. 6020A: QC acceptance criteria, Recovery within 80-120% of expected results. 200.8: QC acceptance criteria, Recovery within 85-115% of expected results. Recalculate results; locate and fix system problem and rerun demonstration for analytes that did not meet criteria.

Method blank. One per preparation batch. No analytes detected > 1⁄2 LOQ; for common lab contaminants (Ca, Na, Mg, Fe, Al, Zn) - > LOQ ; or > 5% of regulatory limit or >5% of target analyte detected in a sample. Correct problem reprep and analyze method blank and all samples processed with the contaminated blank.

Interference check solutions (ICS-A and ICS-AB). At the beginning and end of an analytical run or twice during a 12-hour period, whichever is more frequent. ICS-A: All non-spiked analytes < 1⁄2 LOQ; within + 20% of true value. ICS-AB: Within + 20% of true value. Terminate analysis; locate and correct problem; reanalyze ICS; reanalyze all affected samples.

LCS for the analyte. One LCS per prep batch. 6020A: QC acceptance criteria, Recovery within 80-120% of expected results. 200.8: QC acceptance criteria, Recovery within 85-115% of expected results. Correct problem, reprep and analyze the LCS and all samples in affected prep batch.

Dilution test (6020A only). Each preparatory batch. 1:4 dilution must agree within

+ 10% of the original determination for analytes present at concentrations > 50x concentration of the LOQ. Perform post digestion spike addition for failed analytes.

Post digestion spike addition (6020A only). When dilution test fails. Recovery within 75-125% of expected results. Dilute the sample; reanalyze post digestion spike addition.

MS/MSD SW6020A :One MS/MSD per every 20 field samples per matrix;
200.8 : One MS per every 10 field samples per matrix SW6020A : QC advisory acceptance criteria, 75-1255% of expected results ;
200.8 : QC advisory acceptance criteria, recovery within 70- 130% of expected results Describe in Laboratory Review Checklist.

Internal Standards (ISs). Every sample. For 6020A : See Table 21.3 – Sample IS intensity >70% of intensity of IS in the ICAL blank.
For 200.8 : Sample IS intensity within 60-125% of intensity of IS in the ICAL blank. CCBs and CCVs must meet 80-120%. Perform corrective action as described in Method SW6020A, Section 8.3.

### HS-QA Plan-Rev08.0 -Appendix C Effective: 09/01/2009 Page E5 of 18

© 2009 ALS Laboratory Group - All Rights Reserved Table E.2.1 - Summary of Calibration and QC Procedures for ICP/MS Methods SW6020A and 200.8 Houston Facility

QC Check Minimum Frequency Acceptance Criteria Corrective Action
LOD study. MDL Study performed annually. Limits are checked quarterly through Detection Limit Check Study (DCS) LODs established shall be ≤ 1/2 the LOQs in Table F.2.1 None.

Table E.2.2 - Calibration & QC Procedures – Mercury SW7470A/EPA 245.1 & SW7471B - Houston Facility

QC Check Minimum Frequency Acceptance Criteria Corrective Action Initial multipoint calibration (minimum 5 standards and a blank). Daily initial calibration prior to sample analysis. Correlation coefficient >0.995 for linear regression. Correct problem then repeat initial calibration.

Instrument Performance Check (ICP = ICCV, for EPA 245.1 only) Daily after initial calibration prior to sample analysis (same source as ICAL) The analyte within +5 % of expected value (EPA 245.1 only). Correct problem then repeat initial calibration.

Second-source Initial Calibration Verification standard. Once per initial daily multipoint calibration. Analyte within + 10% of expected value. Correct problem then repeat initial calibration.

Calibration blank. Once per initial daily multipoint calibration. No analyte detected > 1⁄2 LOQ. Correct problem then reanalyze calibration blank and all samples associated with blank. Continuing Calibration verification (CCV). After every 10 samples and at the end of the analysis sequence. The analyte within + 10% of expected value. Correct problem then repeat calibration and reanalyze all samples since last successful calibration. Demonstrate ability to generate acceptable accuracy and precision using four replicate LCS. Once per analyst. QC acceptance criteria, within

+ 15% of expected value. Recalculate results; locate and fix system problem and rerun demonstration for those analytes not meeting criteria.

Method blank. One per prep batch of 20 or less. No analytes detected > 1⁄2 LOQ or . > 5% of regulatory limit or >5% of target analyte detected in a sample. Correct problem then reprep and analyze method blank and all samples processed with the contaminated blank.
LCS for the analyte. One LCS per prep batch of 20 or less. QC acceptance criteria, within

+ 15% of expected value. Correct problem then reprep and analyze the LCS and all samples in the affected prep batch.

MS/MSD. One MS/MSD per every 20 project samples per matrix. QC acceptance criteria, within

+ 15% of expected (7470A & 7471B); ,within + 30% of expected (for EPA 245.1) Describe in Laboratory Review Checklist.

Demonstrate ability to generate acceptable accuracy and precision using four replicate LCS. Initially once per analyst, then annually thereafter. QC acceptance criteria, within

+ 15% of expected value. Recalculate results; locate and fix system problem and rerun demonstration for analytes not meeting criteria.

### HS-QA Plan-Rev08.0 -Appendix C Effective: 09/01/2009 Page E6 of 18

© 2009 ALS Laboratory Group - All Rights Reserved LOD (MDL) study. Once per 12 month period. LODs established shall be ≤ 1/2 LOQs in Table F.2.2 None.

Table E.3.1 - Calibration and QC Procedures for TPH by Method TX 1005 – Houston Facility
QC Check Minimum Frequency Acceptance Criteria Corrective Action Five-point initial calibration for all analytes. Initial calibration prior to sample analysis. Linear – RSD for all analytes ≤ 20% or Linear – least squares regression R > 0.995; or Correct problem then repeat initial calibration.

Second-source calibration verification (ICV). Once per five-point initial calibration. All analytes within ≤ 25% of expected value. Correct problem then repeat initial calibration.

Calibration verification (CCV). Daily, before sample analysis, after every 20 samples and at the end of the analysis sequence. All analytes within ≤ 25% of expected value. Correct problem, repeat CCV or ICAL and reanalyze all samples since last successful CCV. Demonstrate ability to generate acceptable accuracy and precision using four replicate LCS. Once per analyst. QC acceptance criteria, Table G.4. Recalculate results; locate and fix system problem and rerun demonstration for analytes not meeting criteria.

Method blank. One per prep batch. No TPH detected
≥ LOQ or .> 5% of regulatory limit or >5% of target analyte detected in a sample. Correct problem then reprep and analyze method blank and all samples processed with the contaminated blank.

LCS One LCS per prep batch, LCS includes all analytes. QC acceptance criteria, Table G.4. Correct problem, then reprep and analyze the LCS and all samples in the affected prep batch. Surrogate spike Every sample, spiked sample, standard, and method blank. QC acceptance criteria, Table G.4. Method 8000C, Section 9.6 Requirements. Describe in Laboratory Review Checklist.

MS/MSD One MS/MSD per every 20 samples per matrix. QC acceptance criteria, Table G.4. Describe in Laboratory Review Checklist. Demonstrate ability to generate acceptable accuracy and precision using four replicate LCS. Initially once per analyst, then annually thereafter. QC acceptance criteria, Table G.5. Recalculate results; locate and fix system problem and rerun demonstration for analytes not meeting criteria. LOD study. Once per 12 month period. LODs established shall be
≤ 1/2 LOQs in Table F.3. None.

Table E.3.2 - Calibration and QC Procedures for TPH & Misc. Analytes, Method 8015D – Houston Facility

QC Check Minimum Frequency Acceptance Criteria Corrective Action Five-point initial calibration for all analytes. Initial calibration prior to sample analysis. Linear – RSD for all analytes ≤ 20% or Linear – least squares regression R > 0.995; or Correct problem then repeat initial calibration.

### HS-QA Plan-Rev08.0 -Appendix C Effective: 09/01/2009 Page E7 of 18

© 2009 ALS Laboratory Group - All Rights Reserved Table E.3.2 - Calibration and QC Procedures for TPH & Misc. Analytes, Method 8015D – Houston Facility

QC Check Minimum Frequency Acceptance Criteria Corrective Action

Second-source calibration verification (ICV). Once per five-point initial calibration. All analytes within ≤ 20% of expected value. Correct problem then repeat initial calibration.

Calibration verification (CCV). Daily, before sample analysis, after every 20 samples and at the end of the analysis sequence. All analytes within ≤ 20% of expected value. Correct problem, repeat CCV or ICAL and reanalyze all samples since last successful CCV. Demonstrate ability to generate acceptable accuracy and precision using four replicate LCS. Once per analyst. QC acceptance criteria, Table G.4. Recalculate results; locate and fix system problem and rerun demonstration for analytes not meeting criteria.

Method blank. One per prep batch. No analytes detected
≥ LOQ for TPH or
≥ 1⁄2 LOQ for Misc. Analytes or .> 5% of regulatory limit or >5% of target analyte detected in a sample. Correct problem then reprep and analyze method blank and all samples processed with the contaminated blank.

LCS One LCS per prep batch, LCS includes all analytes. QC acceptance criteria, Table G.3.2 Correct problem, then reprep and analyze the LCS and all samples in the affected prep batch. Surrogate spike Every sample, spiked sample, standard, and method blank. QC acceptance criteria, Table G.3.2 Method 8000C, Section 9.6 Requirements. Describe in Laboratory Review Checklist.

MS/MSD One MS/MSD per every 20 project samples per matrix. QC acceptance criteria, Table G.3.2 Describe in Laboratory Review Checklist.

Demonstrate ability to generate acceptable accuracy and precision using four replicate LCS. Initially once per analyst, then annually thereafter. QC acceptance criteria, Table G.3.2 Recalculate results; locate and fix system problem and rerun demonstration for analytes not meeting criteria. LOD study. Once per 12 month period. LODs established shall be
≤ 1/2 LOQs in Table F.3. None.

Table E.4 - Calibration and QC Procedures for Method SW 8011 / EPA504.1 – Houston Facility

QC Check Minimum Frequency Acceptance Criteria Corrective Action Minimum of five-points to generate initial calibration curve Initial calibration prior to sample analysis. Linear – mean RSD for all analytes(peaks) <20%; or Linear – least squares regression, r > 0.995; or
Non-linear – COD > 0.99 (6 points must be used for 2 nd order). Correct problem, then repeat initial calibration.

Second-source Calib. Verification (ICV) Once per initial calibration. Agree within ± 3 0 % of expected value (same as the LCS). Correct problem then repeat initial calibration.

### HS-QA Plan-Rev08.0 -Appendix C Effective: 09/01/2009 Page E8 of 18

© 2009 ALS Laboratory Group - All Rights Reserved Table E.4 - Calibration and QC Procedures for Method SW 8011 / EPA504.1 – Houston Facility

QC Check Minimum Frequency Acceptance Criteria Corrective Action

Calibration verification (CCV) Daily, before sample analysis, after every 20 samples and at the end of the analysis sequence. All analytes within ±3 0 % of expected value. Correct problem, then repeat CCV. If second CCV fails, repeat ICAL. Reanalyze all samples since last successful calibration verification.

Retention time window set +/- 0.07 minutes from the average RT. Each initial calibration and calibration verifications. RT windows are set at +/- 0.07 minutes from the ICAL mean RT. 72 hr RT Study after the ICAL must be within window. Absolute RTs are updated with each CCV to compensate for minor shifts in absolute RT. Correct problem then reanalyze all samples analyzed since the last retention time check.

Method blank. One per preparation batch. No analytes detected >1/2 LOQ or .> 5% of regulatory limit or >5% of target analyte detected in a sample. Correct problems then re-prep and analyze method blank and all samples processed with the contaminated blank.

LCS One LCS per preparation batch. QC acceptance criteria, Table G.4.1 for 8011;
Table G.4.2 for 504.1 Correct problem then re-extract and analyze the LCS and all samples in the affected analytical batch.

MS/MSD One MS/MSD per every 20 project samples per matrix. QC acceptance criteria, Table G.4.1 for 8011;
Table G.4.3 for 504.1 Describe in Laboratory Review Checklist.

Second Column Confirmation Every sample and QC sample, 100% for all positive results Detected results 5X above the LOQ should differ no more than 40%. Inspect chromatography for coelutions and narrate as necessary when due to sample matrix. Demonstrate ability to generate acceptable accuracy and precision using four replicate LCS. Once per analyst. QC acceptance criteria, Table G.4.1 for 8011;
Table G.4.2 for 504.1 Recalculate results; locate and fix problem with system, then rerun demonstration for those analytes not meeting criteria.

Table E.5 Calibration and QC Procedures for BTEX by Method SW8021B / EPA 602 – Houston Facility
QC Check Minimum Frequency Acceptance Criteria Corrective Action Five-point initial calibration for all analytes. Initial calibration prior to sample analysis. Linear – RSD for all analytes

< 20% or Linear – least squares regression r > 0.995; or Non-linear – COD > 0.990 (6 points shall be used for second order). [Note: use of grand mean not allowed.] Correct problem then repeat initial calibration.

Second-source (ICV) calibration verification. Once per five-point initial calibration. All analytes within ± 20% of expected value. Correct problem then repeat initial calibration.

### HS-QA Plan-Rev08.0 -Appendix C Effective: 09/01/2009 Page E9 of 18

© 2009 ALS Laboratory Group - All Rights Reserved Table E.5 Calibration and QC Procedures for BTEX by Method SW8021B / EPA 602 – Houston Facility
QC Check Minimum Frequency Acceptance Criteria Corrective Action

Calibration verification (CCV). Daily, before sample analysis, after every 20 samples and at the end of the analysis sequence. All analytes within ± 20 of expected value Correct problem then repeat ICAL or CCV and reanalyze all samples since last successful CCV.

Method blank. One per prep batch. No analytes detected < 1⁄2 LOQ or .> 5% of regulatory limit or >5% of target analyte detected in a sample. Correct problem then reprep and analyze method blank and all samples processed with the contaminated blank.

LCS LCS for all analytes. One LCS per prep batch, Table G.5. Correct problem then reprep and analyze the LCS and all samples in the affected prep batch. Surrogate spike Every sample, spiked sample, standard, and method blank. QC acceptance criteria, Table G.5. Method 8000C, Section 9.6 Requirements. Describe in Lab Review Checklist.

MS/MSD One MS/MSD per every 20 project samples per matrix. QC acceptance criteria, Table G.5. Describe in Laboratory Review Checklist.

Second-column confirmation. 100% for all positive results. Same as for initial or primary column analysis. Same as for initial or primary column analysis. Demonstrate ability to generate acceptable accuracy and precision using four replicate LCS. Initially once per analyst, then annually thereafter. QC acceptance criteria, Table G.5. Recalculate results; locate and fix system problem and rerun demonstration for analytes not meeting criteria. LOD study. Once per 12 month period. Detection limits established shall be ≤ 1/2 LOQs in Table F.5. None.

Table E.6 Summary of Calibration and QC Pr ocedures for Method SW8081B – Houston Facility

QC Check Minimum Frequency Acceptance Criteria Corrective Action
Five-point initial calibration for all analytes. Initial calibration prior to sample analysis. Linear – avg. RSD for all analytes <20% RSD or Linear – least squares regression; r > 0.995; or Non-linear – COD >0.990 (6 or more points must be used for second order). [Note: grand mean not allowed.] Correct problem then repeat initial calibration.

Second-source (ICV) calibration verification For all analytes. Once per five-point initial calibration. All analytes within ± 15% of expected value. Correct problem then repeat initial calibration.

Retention time window verified for each analyte. Each initial calibration Verify ± 3 times standard deviation for each analyte retention time from 72-hour study. Correct problem then reanalyze all samples analyzed since the last retention time check.

### HS-QA Plan-Rev08.0 -Appendix C Effective: 09/01/2009 Page E10 of 18

© 2009 ALS Laboratory Group - All Rights Reserved Table E.6 Summary of Calibration and QC Pr ocedures for Method SW8081B – Houston Facility

QC Check Minimum Frequency Acceptance Criteria Corrective Action

Calibration verification (CCV). Daily, before sample analysis , after every 20 samples and at the end of the analysis sequence. All analytes within ± 15% of expected value. Correct problem then repeat CCV or ICAL and reanalyze all samples since last successful CCV.

Breakdown check (Endrin and DDT). Daily prior to analysis of samples. Degradation <15%. Take corrective action prior to calibration. Repeat breakdown check.
Demonstrate ability to generate acceptable accuracy and precision using four replicate LCS. Once per analyst. QC acceptance criteria, Table G.6. Recalculate results; locate and fix system problem and rerun demonstration for analytes not meeting criteria.

Method blank. One per prep batch. No analytes detected >1/2 LOQ or .> 5% of regulatory limit or >5% of target analyte detected in a sample. Correct problem then reprep and analyze method blank and all samples processed with the contaminated blank.

LCS for all analytes. One LCS per prep batch. QC acceptance criteria, Tables G.6, G.14. Correct problem then reprep and analyze the LCS and all samples in the affected prep batch.
Surrogate spike. Every sample, spiked sample, standard, and method blank. QC acceptance criteria, Table G.6. Method 8000C, Section 9.6 Requirements. Describe in Laboratory Review Checklist.

MS/MSD. One MS/MSD per every 20 project samples per matrix. QC acceptance criteria, Tables G.6 Describe in Laboratory Review Checklist.

Second-column confirmation (excluding Toxaphene & chlordane). 100% for all positive results. Same as for initial or primary column analysis. Same as for initial or primary column analysis.

LOD study. Once per 12 month period. LODs established shall be ≤ 1/2 LOQs in Table F.6. None

Table E.7 - Summary of Calibration and QC Procedures – Method SW8082A – Houston Facility

QC Check Minimum Frequency Acceptance Criteria Corrective Action Minimum five-point initial calibration (ICAL) for Aroclor 1016/1260 mix. Single point calibration for other Aroclors, for pattern recognition and calibration factor. Initial calibration prior to sample analysis. Calibration Factor – RSD for all analytes (peaks) <20% or Linear – least squares regression r > 0.995; or Non-linear regression – (COD)

r 2 > 0.99 (6 points must be used for 2 nd order). [Note: use of grand mean not allowed.] Correct problem then repeat initial calibration.

### HS-QA Plan-Rev08.0 -Appendix C Effective: 09/01/2009 Page E11 of 18

© 2009 ALS Laboratory Group - All Rights Reserved Table E.7 - Summary of Calibration and QC Procedures – Method SW8082A – Houston Facility

QC Check Minimum Frequency Acceptance Criteria Corrective Action

Second-source calibration verification (ICV) for PCB 1016/1260 mix. Once per initial calibration . Mix within ±15% of expected value. Correct problem then repeat initial calibration.

Absolute RT position established for each analyte and surrogate Set once with each ICAL and set at the beginning of each (12-hr) shift with CCV. Position shall be set using the ICAL midpoint standard, or set with the value of CCV that is run at beginning of each (12-hr) shift. N/A

RT window verification for each analyte and surrogate. RT window set +/- 0.07 minutes from the absolute RT for Aroclor 1016/1260 mix. Each calibration verification (ICV and CCVs). All analytes and surrogates in ICV & CCV must fall within the RT windows Correct problem then reanalyze CCV and all samples analyzed since the last acceptable RT verification. If CCV fails RT verification again, redo ICAL & reset RT widow & position.
Calibration verification (CCV) for PCB 1016/1260 mix. Daily, before sample analysis, after every 20 samples and at the end of the analysis sequence. All analytes within ±15% of expected value. Correct problem, repeat ICAL or CCV and reanalyze all affected samples since last successful CCV. Demonstrate ability to generate acceptable accuracy and precision using four replicate LCS. Once per analyst. QC acceptance criteria, Table G.7. Recalculate results; locate and fix system problem and rerun demonstration for analytes not meeting criteria.

Method blank. One per prep batch. No analytes detected >1/2 LOQ or .> 5% of regulatory limit or >5% of target analyte detected in a sample. Correct problem then re-prep and analyze method blank and all samples processed with the contaminated blank.

LCS (1016/1260 mix). One LCS per prep batch. QC acceptance criteria, Tables G.7 Correct problem then reprep and analyze the LCS and all samples in affected prep batch. Surrogate spike. Every sample, spiked sample, standard, and method blank. QC acceptance criteria, Table G.7. Method 8000C, Section 9.6 Requirements. Describe in Laboratory Review Checklist.
MS/MSD (1016/1260 mix). One MS/MSD per every 20 samples per matrix. QC acceptance criteria, Tables G.7 Describe in Laboratory Review Checklist. LOD study. Once per 12 month period. Detection limits established shall be < 1/2 the LOQs in table F.7. None.

Table E.8 Summary of Calibration and QC Pr ocedures for Method SW8151A – Houston Facility

QC Check Minimum Frequency Acceptance Criteria Corrective Action Five-point initial calibration (ICAL) for all analytes. Initial calibration prior to sample analysis. Linear – RSD for all analytes >20%D or Linear – least squares regression r > 0.995; or
Non-linear – COD > 0.990 (6 points shall be used for second order, 7 points shall be used for third order). [Note: use of grand mean not allowed.] Correct problem then repeat initial calibration.

### HS-QA Plan-Rev08.0 -Appendix C Effective: 09/01/2009 Page E12 of 18

© 2009 ALS Laboratory Group - All Rights Reserved Table E.8 Summary of Calibration and QC Pr ocedures for Method SW8151A – Houston Facility

QC Check Minimum Frequency Acceptance Criteria Corrective Action

Second-source calibration verification (ICV). Once per five-point initial calibration. All analytes within ±20% of expected value. Correct problem then repeat initial calibration.

Retention time (RT) window verified for each analyte. Each initial calibration Verify ± 3 times standard deviation for each analyte retention time from 72-hour study. Correct problem then reanalyze all samples analyzed since the last RT check.

Calibration verification (CCV). Daily, before sample analysis, after every 20 samples and at the end of the analysis sequence. All analytes within ±20% of expected value. Correct problem then repeat CCV (or ICAL) and reanalyze all samples since last successful CCV.

Method blank. One per prep batch. No analytes detected >1/2 LOQ or .> 5% of regulatory limit or >5% of target analyte detected in a sample. Correct problem then reprep and analyze method blank and all samples processed with the contaminated blank.
LCS for all analytes. One LCS per prep batch. QC acceptance criteria, Tables G.8 Correct problem then reprep and analyze the LCS and all samples in affected prep batch. Surrogate spike. Every sample, spiked sample, standard, and method blank. QC acceptance criteria, Table G.8. Method 8000C, Section 9.6 Requirements. Describe in Laboratory Review Checklist.

MS/MSD. One MS/MSD per every 20 project samples per matrix. QC acceptance criteria, Tables G.8. Describe in Laboratory Review Checklist.

Second-column confirmation. 100% for all positive results. Same as for initial or primary column analysis. Same as for initial or primary column analysis. Demonstrate ability to generate acceptable accuracy and precision using four replicate LCS. Once per analyst. QC acceptance criteria, Table G.8. Recalculate results; locate and fix system problem and rerun demonstration for analytes not meeting criteria. LOD study. Once per 12 month period. Detection limits established shall be ≤ 1/2 LOQs in Table F.8. None.

Table E.9 Calibration and QC Procedures for Method SW8260C & EPA 624 – Houston Facility

QC Check Minimum Frequency Acceptance Criteria Corrective Action Minimally use five-point initial calibration (ICAL) for all analytes, use six points if second order curve fit to be used . Initial calibration prior to sample analysis. Average RRF : see Table in SOP; RSD for Target analytes < 20%; or option below: Option 1 linear – least squares regression r > 0.995. Option 2 non-linear – r 2 > 0.99 (must use 6 points at minimum). [Note: grand mean not allowed.] Correct problem then repeat initial calibration.

### HS-QA Plan-Rev08.0 -Appendix C Effective: 09/01/2009 Page E13 of 18

© 2009 ALS Laboratory Group - All Rights Reserved Table E.9 Calibration and QC Procedures for Method SW8260C & EPA 624 – Houston Facility

QC Check Minimum Frequency Acceptance Criteria Corrective Action
Second-source (ICV) calibration verification. Once per five-point initial calibration. 8260C- Analytes within ±30% of expected value, poor purging VOCs ±40%. 624 – Analytes within ±20% of expected value, poor purging VOCs ±25% (Acrolein, Acrylonitrile, ketones) Correct problem then repeat initial calibration.

Relative Retention Time evaluated for each analyte in ICAL. Each ICAL standard Relative retention time (RRT) of the analyte within ± 0.06 RRT units of the RRT of the ICAL midpoint. Correct problem then re-run ICAL.

Calibration verification (CCV). Daily, before sample analysis and every 12 hours of analysis time for 80260C. 8260C – CCV min RRF- Table in SOP; RSDs : < 20% Diff. (when using RFs) or drift (when using linear 1 st order or non-linear 2 nd order fit). 624 – All analytes within ±20 % D (or ±20 %Drift). Correct problem then repeat ICAL

Calibration verification (CCV) Internal Standards. With every calibration verification Retention time ±30 seconds from retention time of the mid-point std. In the ICAL. EICP area within – 50% to +100% of ICAL mid-point std. Inspect mass spectrometer and GC for malfunctions; mandatory reanalysis of samples analyzed while system was malfunctioning.

Internal Standards – samples and QC samples. All samples and QC samples except the CCV Retention time ±30 seconds from retention time of the CCV. EICP area within –50% to +100% of CCV. Reanalyze sample to confirm IS failure due to matrix, and describe in lab review checklist. Demonstrate ability to generate acceptable accuracy and precision using four LCS analyses. Once per analyst. QC acceptance criteria, Table G.9. Recalculate results; locate and fix system problem and rerun demonstration for those analytes not meeting criteria.

Method blank. One per preparation batch. No analytes detected >1⁄2 LOQ; no common lab contaminants detected >LOQ or .> 5% of regulatory limit or >5% of target analyte detected in a sample. Correct problem, then reanalyze method blank and all samples processed with contaminated blank.

LCS for all analytes. One LCS per preparation batch. QC acceptance criteria, Table G.9 and G.14 Correct problem, then reanalyze the LCS and all samples in the affected batch.

MS/MSD. One MS/MSD per every 20 project samples per matrix. QC acceptance criteria for % Recovery - Table G.9; 20% RPD limit for waters; 30% PRD Limit for Soils Describe in Laboratory Review Checklist.

Check of mass spectral ion intensities using BFB Prior to ICAL and each 12hr CCV Refer to criteria listed in the method description Retune instrument and verify.

Surrogate spike. Every sample, spiked sample, standard, and method blank. QC acceptance criteria, Table G.9. Method 8000C, Section 9.6 Requirements. Describe in Lab Review Checklist.

### HS-QA Plan-Rev08.0 -Appendix C Effective: 09/01/2009 Page E14 of 18

© 2009 ALS Laboratory Group - All Rights Reserved Table E.9 Calibration and QC Procedures for Method SW8260C & EPA 624 – Houston Facility

QC Check Minimum Frequency Acceptance Criteria Corrective Action MDL study. Once per 12 month period. Detection limits established shall be

< 1/2 the LOQs in Table F.9 None.

Table E.10 - Calibration and QC Procedures for Method SW8270D & EPA 625 - Houston Facility



### QC Check Minimum Frequency Acceptance Criteria Corrective Action
Check of mass spectral ion intensities using DFTPP. Prior to Init. Calib. And 12hr Cont. Calibration verification (CCV). Refer to criteria listed in the method description Retune instrument and verify.

Minimum Five-point initial calibration for all analytes; use six points if second order curve fit is used. Initial calibration prior to sample analysis. Evaluate for best curve fit model, Avg Response Factors (avg RF) and each level RF should meet min RF requirements in SOP and %RSDs for each: ≤ 20% or one option below: linear curve fit, r > 0.995; or when non-linear (quadratic) where r 2 > 0.990 and 6 points shall be used (2 nd order). [Note: use of grand mean not allowed.] Correct problem then repeat initial calibration.

Second-source (ICV) calibration verification. Once per each initial calibration curve. Analytes within ±30% of expected value. Correct problem then rerun ICV. If ICV fails again, correct problem and repeat initial calibration. Continuing Calibration Verification (CCV). Daily, before sample analysis and every 12 hours of analysis time. CCV RF should meet RF requirements in Table in SOP All compounds should meet
≤ 20% difference (if using RFs)

or ≤ 20% drift (if using linear or non-linear calibration). Correct problem then rerun CCV. If CCV fails again, repeat initial calibration.

CCV Internal Standards. Immediately after or during data acquisition of calibration check standard (CCV). Retention time ±30 seconds from RT of the mid-point standard in the ICAL. EICP area within –50% to +100% of ICAL midpoint standard. Check mass spectrometer and GC for malfunctions; mandatory reanalysis of samples analyzed while system malfunctioned.

Internal Standards – samples and QC samples. All samples and QC samples except the CCV Retention time ±30 seconds from retention time of the daily CCV standard. EICP area within –50% to +100% of the daily CCV. Reanalyze sample to confirm IS failure due to matrix, and describe in lab review checklist.

Method blank. One per preparation batch. No analytes detected ≥ 1⁄2 MQL; no common lab contaminants (e.g. phthalates) detected ≥ MQL or .> 5% of regulatory limit or >5% of target analyte detected in a sample. Correct problem, then reanalyze method blank and all samples processed with the contaminated blank.

### HS-QA Plan-Rev08.0 -Appendix C Effective: 09/01/2009 Page E15 of 18

© 2009 ALS Laboratory Group - All Rights Reserved Table E.10 - Calibration and QC Procedures for Method SW8270D & EPA 625 - Houston Facility



### QC Check Minimum Frequency Acceptance Criteria Corrective Action
LCS for all analytes. One LCS per preparation batch. QC acceptance criteria, Table G.10 & G.14 for 8270 ;
Table G.11 & G.14 for 625 Correct problem, then reanalyze the LCS and all samples in the affected preparation batch.

MS/MSD. One MS/MSD per every 20 project samples per matrix. QC advisory criteria,
Table G.10 for 8270D
Table G.11 for 625 Describe in Laboratory Review Checklist. For matrix evaluation. If MS results are outside LCS limits, evaluate if source of difference is due to matrix effect or lab error. Surrogate spike. All field samples and QC samples. QC acceptance criteria, Table G.10 for 8270D
Table G.11 for 625 Method 8000C, Section 9.6 Requirements. Describe in Laboratory Review Checklist.
Demonstrate ability to generate acceptable accuracy and precision using four replicate LCS analyses. Once per analyst. QC acceptance criteria, Table G.10 for 8270D and
Table G.11 for 625 Recalculate results; locate and fix problem with system and then rerun demonstration for those analytes that did not meet criteria. MDL/LOD study. MDL once annually. Detection limits established should ≤ 1/3 the LOQ in Table F.10 for 8270D and
Table F.11 for EPA 625 None.

Table E.11 - Summary of Calibration and QC Procedures for Method EPA 608

QC Check Minimum Frequency Acceptance Criteria Corrective Action Five-point initial calibrations for pesticides and separate PCB 1016/1260 mix. Initial calibration prior to sample analysis. Calibration Factors – mean RSD for all analytes < 10% or Linear – least squares regression R > 0.995. Correct problem then repeat initial calibration.

Second-source calibration verification for pesticides and PCB 1016/1260 mix. Once per five-point initial calibration. Mix within ±15% of expected value. Correct problem then repeat initial calibration.

Calibration verification (CCV) for pesticides and PCB 1016/1260 mix. After every 20 samples and at the end of the analysis
sequence. All analytes within ±15% of expected value. Correct problem then repeat CCV (or ICAL) and reanalyze all samples since last successful CCV. Demonstrate ability to generate acceptable accuracy and precision using four replicate LCS. Once per analyst. QC acceptance criteria, Tables G.6 & G7. Recalculate results; locate and fix problem with system and then rerun demonstration for those analytes that did not meet criteria.

Method blank. One per prep batch. No analytes detected > 1⁄2 LOQ or .> 5% of regulatory limit or >5% of target analyte detected in a sample. Correct problem then reprep and analyze method blank and all samples processed with the contaminated blank.

### HS-QA Plan-Rev08.0 -Appendix C Effective: 09/01/2009 Page E16 of 18

© 2009 ALS Laboratory Group - All Rights Reserved Table E.11 - Summary of Calibration and QC Procedures for Method EPA 608

QC Check Minimum Frequency Acceptance Criteria Corrective Action LCS (for pesticides and separate 1016/1260 mix). One LCS per prep batch. QC acceptance criteria, Table G.6 & G 7 Correct problem then reprep and analyze the LCS and all samples in the affected prep batch. Surrogate spike. Every sample, spiked sample, standard, and method blank. QC acceptance criteria, Table G. 6 & G.7 Confirm failure if necessary. If chromatography indicates matrix cause, re-analysis may not be necessary. Describe in Lab Data Review Checklist.
MS/MSD (1016/1260 mix). One MS/MSD per every 20 project samples per matrix. QC acceptance criteria, Table G.6 & G.7 Describe in Laboratory Review Checklist. LOD.MDL study. Once per 12 month period. Detection limits established shall be ≤ 1/2 LOQs in table F.6 & F.7. None.

Table E.12- Calibration and QC Procedures for Explosives SW8330A – Houston Facility
QC Check Minimum Frequency Acceptance Criteria Corrective Action Five-point initial calibration for all analytes. Initial calibration prior to sample analysis. Linear – mean RSD for all analytes < 20%; or Linear – 1sf order fit, R > 0.995; or Non-linear – COD > 0.99 (6 points required for 2 nd order). Correct problem then repeat initial calibration.

Second-source calibration verification (ICV) Once per five-point initial calibration. All analytes within ± 25% of expected value (±30% for Tetryl). Correct problem then repeat initial calibration.

Continuing Calibration verification (CCV). After every 20 samples and at the end of the analysis
sequence. All analytes within ± 20% of expected value. Correct problem then repeat CCV (or ICAL) and reanalyze all samples since last successful CCV.
Retention Time (RT) Window verification At instrument setup and after major maintenance (e.g. column change) Verify RT widow with 72 hour study (use CCV data from three days) N/A

Method blank. One per preparation batch. No analytes detected > 1⁄2 MQL or > 5% of regulatory limit or >5% of target analyte detected in a sample. Correct problem, then reprepare and analyze method blank and all samples processed with the contaminated blank.

LCS LCS for all analytes. One LCS per preparation batch. QC acceptance criteria, Table G.12.
LCSD RPD < 30% Correct problem, then reprepare and analyze LCS and all samples processed with the LCS.

MS/MSD One MS/MSD per preparation batch (20 or less samples per matrix). QC acceptance criteria, Table G.12. MS/MSD RPD <50% for waters and soils. Describe in Laboratory Review Checklist.

### HS-QA Plan-Rev08.0 -Appendix C Effective: 09/01/2009 Page E17 of 18

© 2009 ALS Laboratory Group - All Rights Reserved Table E.12- Calibration and QC Procedures for Explosives SW8330A – Houston Facility
QC Check Minimum Frequency Acceptance Criteria Corrective Action

Detection 2 nd Column Confirmations Each detection Results agree within 40 %. Evaluate any > 40 % for coelutions Analyst demonstrate ability to generate acceptable accuracy / precision - four LCS. Once per analyst. QC acceptance criteria, Table G.12 Recalculate results; locate and fix problem with system and then rerun demonstration.

LOD/MDL study. Once per 12 month period. MDLs established shall be < 1/3 the LOQ in Tables F.12 None.

Table E.13.1 Calibration and QC Procedures for SW 8315A & SW8316 - Houston Facility
QC Check Minimum Frequency Acceptance Criteria Corrective Action Five-point initial calibration for all analytes. Initial calibration prior to sample analysis. CF – mean RSD for all analytes

< 20%; or Linear – 1sf ordert, R > 0.995; or Non-linear – COD > 0.99 (6 points required for 2 nd order). Correct problem then repeat initial calibration.

Second-source calibration verification (ICV) Once per five-point initial calibration. All analytes within ± 20% of expected value. Correct problem then repeat initial calibration.

Continuing Calibration verification (CCV). After every 20 samples and at the end of the analysis sequence. All analytes within ± 20% of expected value. Correct problem then repeat CCV (or ICAL) and reanalyze all samples since last successful CCV.
Retention Time (RT) Window verification At instrument setup and after major maintenance (e.g. column change) Verify RT widow with 72 hour study (use CCV data from three days) N/A

Method blank. One per preparation batch. No analytes detected > 1⁄2 MQL or > 5% of regulatory limit or >5% of target analyte detected in a sample. Correct problem, then reprepare and analyze method blank and all samples processed with the contaminated blank.

LCS LCS for all analytes. One LCS per preparation batch. QC acceptance criteria, Table G.13. LCSD RPD < 20% (waters) LCSD RPD < 30% (soil) Correct problem, then reprepare and analyze LCS and all samples processed with the LCS.

MS/MSD One MS/MSD per preparation batch (20 or less samples per matrix). QC acceptance criteria, Table G.13. MS/MSD/RPD Describe in Laboratory Review Checklist.

Analyst demonstrate ability to generate acceptable accuracy / precision - four LCS. Once per analyst. QC acceptance criteria, Table G.13 Recalculate results; locate and fix problem with system and then rerun demonstration.

### HS-QA Plan-Rev08.0 -Appendix C Effective: 09/01/2009 Page E18 of 18

© 2009 ALS Laboratory Group - All Rights Reserved Table E14 - Summary of Calibration and QC Procedures for RSK – 175 

### QC Check Minimum Frequency Acceptance Criteria Corrective Action
Minimum of five-points for initial calibration for all analytes. Initial calibration (ICAL) prior to sample analysis. Linear – mean RSD for all analytes < 25%; or Linear – least squaresregression, R > 0.995; or Nonlinear – COD > 0.99 (6 points shall be used for second order). Correct problem then repeat initial calibration.

Second-source (ICV) calibration verification. Once per each initial calibration curve. All analytes within ± 25% of expected value. Correct problem then repeat initial calibration.

Calibration verification. Daily, before sample analysis, after every 20 samples and at the end of the analysis sequence. All analytes within ± 25% of expected value. Correct problem, then repeat ICAL verification and reanalyze all samples since last successful calibration verification.

Method blank. One per preparation batch. Any analytes detected must be < 1/2 LOQ. Correct problem, then reprepare and analyze method blank and all affected samples processed with the contaminated blank.

LCS/LCSD LCS for all analytes, one LCS per preparation batch. Recovery: ± 25% of expected value; LCSD RPD <30%. Correct problem then reanalyze the LCS and all samples in the affected batch.

MS/MSD One MS/MSD per every 20 project samples. Recovery: ± 30% of expected value; MSD RPD <30%. Describe in Laboratory Review Checklist.
Duplicate (for sample, or as MSD, or as LCSD). One duplicate per every 20-project samples. Duplicate RPD <30%. Describe in Laboratory Review Checklist. Analyst demonstrate ability to generate acceptable accuracy and precision using four replicate LCS. Once per analyst initially and annually thereafter. QC acceptance criteria for LCS Recovery : ± 25%, RPD <30%. Recalculate results; locate and fix problem with system and then rerun demonstration and meet criteria.

### HS-QA Plan-Rev08.0 -Appendix C Effective: 09/01/2009 Page F1 of 14

© 2009 ALS Laboratory Group - All Rights Reserved 

### Table F.1 - Wet Chemistry LODs and LOQs – Houston Facility Analyte / method- water matrix * NELAC accredited LOD mg/L LOQ mg/L Analyte / method– solid/soil matrix * NELAC accredited LOD mg/Kg LOQ mg/Kg pH / E150.1*/ SW9040C * (standard units) - ± 0.05 pH / SW9045D * (standard units) - ± 0.05 pH SM4500H+ B * (standard units) - ± 0.05 Specific Conductance (umhos/cm) / EPA 120.0 / SW 9050A* 1.0 1.0 Specific Conductance / 120.0 / 9050* 0.5 1.0

Total Dissolved Solids EPA160.2* /SM2540C* 5 10 Total Suspended Solids - EPA 160.1*/ SM 2540D* 2 2

Total Solids – EPA 160.3* / SM2540B* 5 10
Volatile Solids - SM 2540 G 5 10 Percent Moisture (as % weight) - 0.01 Percent Moisture (as % Weight) - 0.01 Total Alkalinity / SM 2320B / EPA 310.1* 2 5
Ammonia as N – SM4500 NH3-B-F* 0.008 0.025
Ammonia as N – SM4500 NH3-D */ E350.3* 0.2 0.2 Ammonia as N – SM4500 NH3-D 10 10
Fluoride – SM4500 F B & C / EPA 340.2 0.1 0.1
Fluoride – SW 9214 * 0.1 0.1 Chrome VI by SW 7196* / SM3500 Cr B 0.004 0.01 Chrome VI by SW 7196* / SW3060A (prep) 0.7 2 Ferrous Iron by SM 3500-Fe D 0.02 0.05 Chloride by EPA 300 */ SW9056A* 0.01 0.5 Chloride by EPA 300* / SW9056A* 0.1 5 Fluoride by EPA 300* / SW9056A* 0.01 0.1 Fluoride by EPA 300 */ SW9056A* 0.1 1 Sulfate by EPA 300* / SW9056A* 0.01 0.5 Sulfate by EPA 300* / SW9056A* 0.1 5 o-Phosphorous (P) by EPA 300* / SW9056A* 0.03 0.1 o-Phosphorous (P) - EPA300*/SW9056A* 0.3 1
Nitrate as N - E300 */ SW9056A* 0.03 0.1 Nitrate as N - E300* / SW9056A* 0.3 1
Nitrite as N – E300* / SW9056A* 0.03 0.1 Nitrite as N – E300* / SW9056A* 0.3 1
Bromide – E300* / SW9056A* 0.03 0.1 Bromide – E300* / SW9056A* 0.3 1
Nitrite as N - SM4500-NO2 B * / E354.1* 0.003 0.01 Total Kjeldahl Nitrogen, E351.2 / SM4500 NH3 D 1.0 1.0

o-Phosphorous (as P) E365.3* / SM4500 P * 0.006 0.025 Total Phosphorous (as P) E365.3* / SM4500 P* 0.02 0.05 Total Cyanide – SW 9010C / 9014 * / E335.3* 0.004 0.02 Total Cyanide - SW9010C / 9014* 0.6 2.0 Total Cyanide – SM 4500 CN C* & E * 0.004 0.02 Cyanide, Weak Acid Dissociable– SM4500CN I 0.005 0.02 Sulfide by SM4500-S 2- F * / EPA 376.1* 0.5 1 Sulfite by SM4500-S0 3 2- B * (Iodometric) 1.2 5 Total Organic Carbon – SM5310C / E415.1* / SW 9060A* 0.1 0.5 Total Organic Carbon – 9060A Mod * (as %Wt - dry) 0.02 % 0.06 %

Total Organic Carbon –Walkley-Black * (as %Wt - dry) 0.02 % 0.02 %

Chemical Oxygen Demand – Hach 8000 * 4 15 BOD, 5-day – SM 5210 B* / E405.1 * 2 2
Carbonaceous BOD – SM 5210 B * / E405.1 2 2 Phenolics, Total Recoverable – E420.1* / SW9065* 0.02 0.05 Phenolics, Total Recoverable – SW9065* 1 2.5

Oil and Grease, 1664 * 0.6 2 O & G (HEM), SW9071B 33 33

### HS-QA Plan-Rev08.0 -Appendix C Effective: 09/01/2009 Page F2 of 14

© 2009 ALS Laboratory Group - All Rights Reserved 

### Table F.1 - Wet Chemistry LODs and LOQs – Houston Facility Analyte / method- water matrix * NELAC accredited LOD mg/L LOQ mg/L Analyte / method– solid/soil matrix * NELAC accredited LOD mg/Kg LOQ mg/Kg Chlorine, Total Residual - SSM4500CL F * 0.1 0.1 Hardness (As CaCO3) SM2340 B * 2 2 True Total Barium (LaDNR) 50 50 Silica, Dissolved (as SiO2) - SM4500-SiD * 0.02 0.1 Color, Pt-Co units - SM2120B / EPA 110.2 5 5 Turbidity – EPA 180.1 0.1 0.1

Table F.2.1 - Metals by ICP/MS – SW 6020A – EPA 200.8 - Houston Facility LODs and LOQs - Houston Facility Analyte – Water Matrix

* NELAC accredited Isotope LOD
μ g/L LOQ
μ g/L Analyte - Soil Matrix * NELAC accredited Isotope LOD mg/Kg MQL mg/Kg Aluminum* 27 3.7 10 Aluminum* 27 0.2 1 Antimony* 121 0.5 5 Antimony* 121 0.25 0.5

Arsenic* 75 0.9 5 Arsenic* 75 0.06 0.5
Barium* 135 0.7 5 Barium* 135 0.08 0.5 Beryllium* 9 0.3 2 Beryllium* 9 0.05 0.5

Boron* 11 15 20 Boron* 11 1.5 2.5
Cadmium* 111 0.6 2 Cadmium* 111 0.04 0.5
Calcium* 44 50 500 Calcium* 44 10 50
Chromium* 53 0.6 5 Chromium* 53 0.05 0.5

Cobalt* 59 0.5 5 Cobalt* 59 0.17 0.5 Copper* 65 0.5 5 Copper* 65 0.14 0.5

Iron* 56 36 200 Iron* 56 4 50
Potassium* 39 100 500 Potassium* 39 3.6 50
Lead* 207 0.4 5 Lead* 207 0.05 0.5 Magnesium* 24 39 500 Magnesium* 24 3.3 50 Manganese* 55 0.8 5 Manganese* 55 0.07 0.5 Molybdenum* 95 0.6 5 Molybdenum* 95 0.05 0.5
Sodium* 23 100 200 Sodium* 23 4 50
Nickel* 60 1.4 5 Nickel* 60 0.06 0.5
Selenium* 82 2.5 5 Selenium* 82 0.25 0.5
Tin* 118 0.6 5 Tin* 118 0.14 1.0
Strontium* 88 0.5 5 Strontium* 88 0.06 0.5

Silver* 109 0.7 5 Silver* 109 0.04 0.5
Titanium* 47 1.2 5 Titanium* 47 0.13 1.0
Thallium* 203 0.8 2 Thallium* 203 0.07 0.5
Vanadium* 51 0.7 5 Vanadium* 51 0.07 0.5
Zinc* 66 2.5 5 Zinc* 66 0.25 0.5

Table F.2.2 - Mercury by Cold Vapor - LODs and LOQs - Houston Facility Analyte / method- water matrix * NELAC accredited EPA 254.1 – SW7470A LOD μg/L LOQ μg/L Analyte / method– solid/soil matrix * NELAC accredited SW7471B LOD μg/Kg LOQ μg/Kg

Mercury, Total* 0.042 0.2 Mercury, Total* 1.4 13.3

### HS-QA Plan-Rev08.0 -Appendix C Effective: 09/01/2009 Page F3 of 14

© 2009 ALS Laboratory Group - All Rights Reserved Table F.3.1 - TPH Methods - Current LODs and LOQs - Houston Facility Analyte – water matrix

* NELAC accredited LOD mg/L LOQ mg/L Analyte - solid/soil matrix * NELAC accredited LOD mg/Kg LOQ mg/Kg Total Petroleum Hydrocarbon / TX 1005 * 0.2 0.5 Total Petroleum Hydrocarbon / TX 1005* 16 50
nC6-nC12 / TX 1005 * 0.2 0.5 nC6-nC12 / TX 1005 * 16 50
>nC12 to nC28 / TX 1005* 0.2 0.5 >nC12 to nC28 / TX 1005* 16 50
>nC28 to nC35 / TX 1005* 0.2 0.5 >nC28 to nC35 / TX 1005* 16 50 TX 1006 – Fractionated Hydrocarbons - - TX 1006 - Fractionated Hydrocarbons - - Aliphatics nC6 / TX 1006 - 1 Aliphatics nC6 - 10 Aliphatics >nC6 to nC8 - 1 Aliphatics >nC6 to nC8 - 10 Aliphatics >nC8 to nC10 - 1 Aliphatics >nC8 to nC10 - 10 Aliphatics >nC10 to nC12 - 1 Aliphatics >nC10 to nC12 - 10 Aliphatics >nC12 to nC16 - 1 Aliphatics >nC12 to nC16 - 10 Aliphatics >nC16 to nC21 - 1 Aliphatics >nC16 to nC21 - 10 Aliphatics >nC21 to nC35 - 1 Aliphatics >nC21 to nC35 - 10 Total Aliphatic Fraction - 5 Total Aliphatic Fraction - 50
Aromatics >nC7 to nC8 - 1 Aromatics >nC7 to nC8 - 10
Aromatics >nC8 to nC10 - 1 Aromatics >nC8 to nC10 - 10
Aromatics >nC10 to nC12 - 1 Aromatics >nC10 to nC12 - 10
Aromatics >nC12 to nC16 - 1 Aromatics >nC12 to nC16 - 10
Aromatics >nC16 to nC21 - 1 Aromatics >nC16 to nC21 - 10
Aromatics >nC21 to nC35 - 1 Aromatics >nC21 to nC35 - 10
Total Aromatic Fraction - 5 Total Aromatic Fraction - 50 8015C– Gasoline Range (P&T - C6-C10)* 0.02 0.05 8015C Gasoline Range (P &T C6-C10)* 0.02 0.05 8015C_ Diesel Range (>C10-C28)* 0.02 0.05 8015C - Diesel Range (>C10-C28)* 0.5 1.7 8015C – Oil Range (>C28) 0.02 0.1 8015C - Oil Range (>C28) 0.5 3.4

Table F.3.2 - Non-halogenated Organics by 8015D - LODs and LOQs - Houston Facility Analyte – water matrix

* NELAC accredited LOD mg/L LOQ mg/L Analyte - solid/soil matrix * NELAC accredited LOD mg/Kg LOQ mg/Kg Ethylene Glycol* 1 1 Ethylene Glycol* 1 1 1-Propanol * 1 1 1-Propanol * 1 1 2-Propanol * 1 1 2-Propanol * 1 1
Isobutanol * 1 1 Isobutanol * 1 1 Propylene glycol * 10 10 Propylene glycol * 10 10
Ethanol * 1 1 Ethanol * 1 1
Methanol* 1 1 Methanol* 1 1

Table F.3.3 - Dissolved Gases by RSK-175 * - LODs and LOQs - Houston Facility Analyte – water matrix

* NELAC accredited LOD μg/L LOQ μg/L Analyte - water matrix * NELAC accredited LOD μg/L LOQ μg/L

Ethane * 0.2 1 Ethene * 0.2 1
Methane * 0.1 0.5 Isobutane* 1 1 Propane* 1 1 n-Butane* 1 1

Table F.4 - SW8011* – EPA 504.1 LODs and LOQs – Houston Facility Analyte – water matrix LOD LOQ Analyte – water matrix LOD LOQ

* NELAC accredited μg/L μg/L * NELAC accredited μg/L μg/L 1,2-Dibromoethane (EDB)* 0.01 0.02 1,2,3-Trichloropropane (1,2,3-TCP)* 0.01 0.02

### HS-QA Plan-Rev08.0 -Appendix C Effective: 09/01/2009 Page F4 of 14

© 2009 ALS Laboratory Group - All Rights Reserved Table F.4 - SW8011* – EPA 504.1 LODs and LOQs – Houston Facility Analyte – water matrix LOD LOQ Analyte – water matrix LOD LOQ

* NELAC accredited μg/L μg/L * NELAC accredited μg/L μg/L 1,2-Dibromo-3-chloropropane (DBCP)* 0.01 0.02

Table F.5 - BTEX by 8021 - LODs and LOQs - Houston Facility Analyte – water matrix

* NELAC accredited LOD
μ g/L LOQ
μ g/L Analyte - solid/soil matrix * NELAC accredited LOD
μ g/Kg LOQ
μ g/Kg

Benzene* 0.2 1 Benzene* 0.2 1 Ethylbenzene * 0.3 1 Ethylbenzene* 0.3 1
Toluene* 0.4 1 Toluene* 0.4 1 m,p-Xylene* 0.5 2 m,p-Xylene* 0.7 2 p-Xylene* 0.5 1 o-Xylene* 0.7 1 Xylenes, Total* 0.5 3 Xylenes, Total* 0.7 3 Methyl tert-butyl ether* 1.3 5 Methyl tert-butyl ether* 1.3 5



### Table F.6 - SW 8081B LODs and LOQs – Houston Facility Analyte – water matrix

* NELAC accredited 

### LOD
μ g/L LOQ
μ g/L Analyte - solid/soil matrix * NELAC accredited 

### LOD
μ g/Kg LOQ
μ g/Kg 4,4'-DDD* 0.01 0.1 4,4'-DDD* 0.5 3.3 4,4'-DDE* 0.01 0.1 4,4'-DDE* 0.5 3.3 4,4'-DDT* 0.01 0.1 4,4'-DDT* 0.5 3.3
Aldrin* 0.01 0.05 Aldrin * 0.3 1.7 Alpha-BHC* 0.01 0.05 Alpha-BHC* 0.3 1.7
Beta-BHC* 0.01 0.05 Beta-BHC* 0.3 1.7
Delta-BHC* 0.01 0.05 Delta-BHC* 0.2 1.7 Chlordane, Technical* 0.12 0.5 Chlordane, Technical* 1.2 17 Alpha-Chlordane * 0.01 0.05 Alpha-Chlordane* 0.2 1.7
Gamma-Chlordane* 0.01 0.05 Gamma-Chlordane* 0.2 1.7
Dieldrin* 0.01 0.1 Dieldrin* 0.5 3.3
Endosulfan I* 0.01 0.05 Endosulfan I* 0.3 1.7
Endosulfan II* 0.01 0.1 Endosulfan II* 0.6 3.3
Endosulfan sulfate* 0.01 0.1 Endosulfan sulfate* 0.6 3.3
Endrin* 0.01 0.1 Endrin* 0.6 3.3 Endrin aldehyde* 0.01 0.1 Endrin aldehyde* 0.6 3.3
Endrin ketone* 0.01 0.1 Endrin ketone* 0.6 3.3 Gamma-BHC (Lindane)* 0.01 0.05 gamma-BHC (Lindane)* 0.2 1.7 Heptachlor* 0.01 0.05 Heptachlor * 0.3 1.7 Heptachlor epoxide* 0.01 0.05 Heptachlor epoxide* 0.3 1.7 Methoxychlor* 0.09 0.5 Methoxychlor* 3.4 17 Toxaphene* 0.13 0.5 Toxaphene* 3.8 17
Hexachlorobenzene * 0.01 0.05 Hexachlorobenzene 0.2 1.7
Mirex * 0.012 0.05 Mirex * 0.2 1.7



### Table F.7 - SW 8082A - PCBs - LODs and LOQs - Houston Facility Analyte – water matrix

* NELAC accredited 

### LOD
μ g/L LOQ
μ g/L Analyte - solid/soil matrix * NELAC accredited 

### LOD
μ g/Kg LOQ
μ g/Kg

### HS-QA Plan-Rev08.0 -Appendix C Effective: 09/01/2009 Page F5 of 14

© 2009 ALS Laboratory Group - All Rights Reserved 

### Table F.7 - SW 8082A - PCBs - LODs and LOQs - Houston Facility Analyte – water matrix

* NELAC accredited 

### LOD
μ g/L LOQ
μ g/L Analyte - solid/soil matrix * NELAC accredited 

### LOD
μ g/Kg LOQ
μ g/Kg
Aroclor 1016* 0.2 0.5 Aroclor 1016* 2.4 17
Aroclor 1221* 0.2 0.5 Aroclor 1221* 2.4 17
Aroclor 1232* 0.2 0.5 Aroclor 1232* 2.4 17
Aroclor 1242* 0.2 0.5 Aroclor 1242* 2.4 17
Aroclor 1248* 0.2 0.5 Aroclor 1248* 2.4 17
Aroclor 1254* 0.2 0.5 Aroclor 1254* 2.4 17
Aroclor 1260* 0.2 0.5 Aroclor 1260* 1.8 17



### Table F.8 - SW 8151A LODs and LOQs - Houston Facility Analyte – water matrix

* NELAC accredited 

### LOD
μ g/L LOQ
μ g/L Analyte - solid/soil matrix * NELAC accredited 

### LOD
μ g/Kg LOQ
μ g/Kg 2,4,5-T* 0.05 0.1 2,4,5-T* 0.6 3.3 2,4,5-TP (Silvex)* 0.02 0.1 2,4,5-TP (Silvex)* 0.5 3.3 2,4-D* 0.08 0.2 2,4-D* 1.0 6.6 2,4-DB* 0.07 0.2 2,4-DB* 1.7 6.6 Dalapon* 0.05 0.1 Dalapon* 1.6 3.3
Dicamba* 0.05 0.1 Dicamba* 1.5 3.3 Dichlorprop* 0.07 0.2 Dichlorprop* 3.0 6.6 Dinoseb* 0.03 0.1 Dinoseb* 0.5 3.3
MCPA* 3 20 MCPA* 150 333
MCPP* 7 20 MCPP* 140 333



### Table F.9.1 – SW8260C – Current LODs and LOQs, 5 ml purge – Houston Facility Analyte – water matrix

5 ml purge volume * NELAC Accredited LOD μg/L LOQ μg/L Analyte - solid/soil matrix based on 5 g dry weight sample * NELAC Accredited LOD μg/Kg LOQ μg/Kg

1,1,1,2-Tetrachloroethane * 0.5 5 1,1,1,2-Tetrachloroethane * 0.5 5 1,1,1-Trichloroethane * 0.5 5 1,1,1-Trichloroethane * 0.5 5 1,1,2,2-Tetrachloroethane * 0.5 5 1,1,2,2-Tetrachloroethane * 0.5 5 1,1,2-Trichlor-1,2,2-trifluoroethane * 0.6 5 1,1,2-Trichlor-1,2,2-trifluoroethane * 0.5 5 1,1,2-Trichloroethane * 0.5 5 1,1,2-Trichloroethane * 0.5 5 1,1-Dichloroethane * 0.5 5 1,1-Dichloroethane * 0.5 5 1,1-Dichloroethene * 0.5 5 1,1-Dichloroethene * 0.5 5 1,1-Dichloropropene * 0.5 5 1,1-Dichloropropene * 0.5 5 1,2,3-Trichlorobenzene * 0.5 5 1,2,3-Trichlorobenzene * 0.5 5 1,2,3-Trichloropropane * 0.7 5 1,2,3-Trichloropropane * 0.5 5 1,2,3-Trimethylbenzene 0.5 5 1,2,3-Trimethylbenzene 0.5 5 1,2,4-Trichlorobenzene * 0.5 5 1,2,4-Trichlorobenzene * 0.6 5 1,2,4-Trimethylbenzene * 0.5 5 1,2,4-Trimethylbenzene * 0.5 5 1,2-Dibromo-3-chloropropane * 1 5 1,2-Dibromo-3-chloropropane * 0.9 5 1,2-Dibromoethane * 0.5 5 1,2-Dibromoethane * 0.5 5 1,2-Dichlorobenzene * 0.5 5 1,2-Dichlorobenzene * 0.5 5 1,2-Dichloroethane * 0.5 5 1,2-Dichloroethane * 0.5 5 1,2-Dichloropropane * 0.5 5 1,2-Dichloropropane * 0.5 5 1,3,5-Trimethylbenzene * 0.5 5 1,3,5-Trimethylbenzene * 0.5 5 1,3-Butadiene 0.5 5 1,3-Butadiene 5 5

### HS-QA Plan-Rev08.0 -Appendix C Effective: 09/01/2009 Page F6 of 14

© 2009 ALS Laboratory Group - All Rights Reserved 

### Table F.9.1 – SW8260C – Current LODs and LOQs, 5 ml purge – Houston Facility Analyte – water matrix

5 ml purge volume * NELAC Accredited LOD μg/L LOQ μg/L Analyte - solid/soil matrix based on 5 g dry weight sample * NELAC Accredited LOD μg/Kg LOQ μg/Kg

1,3-Dichlorobenzene * 0.5 5 1,3-Dichlorobenzene * 0.5 5 1,3-Dichloropropane * 0.5 5 1,3-Dichloropropane * 0.5 5 1,4-Dichlorobenzene * 0.5 5 1,4-Dichlorobenzene * 0.5 5 1,4-Dioxane * 50 100 1,4-Dioxane * 20 100 1-Chlorohexane * 0.8 5 1-Chlorohexane * 0.6 5 1-Propanol * 100 100 1-Propanol * 20 100 2,2-Dichloropropane * 0.5 5 2,2-Dichloropropane * 0.5 5 2-Butanone * 1 10 2-Butanone * 1.4 10 2-Chloro-1,3-butadiene * 1.1 5 2-Chloro-1,3-butadiene * 5 5 2-Chloroethyl vinyl ether * 1 10 2-Chloroethyl vinyl ether * 1 5 2-Chlorotoluene * 0.5 5 2-Chlorotoluene * 0.5 5 2-Hexanone * 1 10 2-Hexanone * 1 10 2-Methylnaphthalene * 5 5 2-Methylnaphthalene * 0.7 5 2-Pentanone * 1 10 2-Pentanone * 10 10 4-Chlorotoluene * 0.5 5 4-Chlorotoluene * 0.5 5 4-Isopropyltoluene * 0.5 5 4-Isopropyltoluene * 0.5 5 4-Methyl-2-pentanone * 1 10 4-Methyl-2-pentanone * 1 10 Acetaldehyde 3.2 10 Acetaldehyde 7 10 Acetone * 1 10 Acetone * 2 20 Acetonitrile * 7 50 Acetonitrile * 10 50 Acrolein * 2 20 Acrolein * 2 20 Acrylonitrile * 1 10 Acrylonitrile * 1 20 Allyl alcohol * 100 100 Allyl alcohol 100 100 Allyl Chloride * 1 10 Allyl Chloride * 1 10 Amyl Alcohol 10 100 Amyl Alcohol 10 100 Benzene * 0.5 5 Benzene * 0.5 5 Benzyl Chloride * 0.5 5 Benzyl Chloride * 0.5 5 Bromobenzene * 0.5 5 Bromobenzene * 0.5 5 Bromochloromethane * 0.5 5 Bromochloromethane * 0.5 5 Bromodichloromethane * 0.5 5 Bromodichloromethane * 0.5 5 Bromoform * 0.5 5 Bromoform * 0.5 5 Bromomethane * 0.9 5 Bromomethane * 1 10 Butyl methacrylate 5 5 Butyl methacrylate 0.5 5 Carbon disulfide * 1 10 Carbon disulfide * 1 10 Carbon tetrachloride * 0.5 5 Carbon tetrachloride * 0.5 5 Chlorobenzene * 0.5 5 Chlorobenzene * 0.5 5 Chloroethane * 0.5 5 Chloroethane * 1 10 Chloroform * 0.5 5 Chloroform * 0.5 5 Chloromethane * 0.5 5 Chloromethane * 1 10 cis-1,2-Dichloroethene * 0.5 5 cis-1,2-Dichloroethene * 0.5 5 cis-1,3-Dichloropropene * 0.5 5 cis-1,3-Dichloropropene * 0.5 5 Cyclohexane 0.6 5 Cyclohexane 5 5 Dibromochloromethane * 0.5 5 Dibromochloromethane * 0.5 5 Dibromomethane * 0.5 5 Dibromomethane * 0.5 5 Dichlorodifluoromethane * 0.5 5 Dichlorodifluoromethane * 0.5 5 Diethyl Ether * 1.2 5 Diethyl Ether * 0.5 5

### HS-QA Plan-Rev08.0 -Appendix C Effective: 09/01/2009 Page F7 of 14

© 2009 ALS Laboratory Group - All Rights Reserved 

### Table F.9.1 – SW8260C – Current LODs and LOQs, 5 ml purge – Houston Facility Analyte – water matrix

5 ml purge volume * NELAC Accredited LOD μg/L LOQ μg/L Analyte - solid/soil matrix based on 5 g dry weight sample * NELAC Accredited LOD μg/Kg LOQ μg/Kg

Diisopropyl ether * 0.5 5 Diisopropyl ether 0.5 10 Epichlorohydrin * 2.5 20 Epichlorohydrin * 1 20 Ethanol * 100 100 Ethanol * 2.4 100 Ethyl acetate * 0.5 5 Ethyl acetate * 100 10 Ethyl acrylate 0.5 5 Ethyl acrylate 10 5 Ethyl Methacrylate * 1.3 5 Ethyl Methacrylate * 0.6 5 Ethyl tert-Butyl Ether (ETBE) * 5 5 Ethyl tert-Butyl Ether (ETBE) 0.5 5 Ethylbenzene * 0.5 5 Ethylbenzene * 0.5 5 Ethylene oxide 2.3 10 Ethylene oxide * 3.5 10 Hexachlorobutadiene * 0.8 5 Hexachlorobutadiene * 1 5 Iodomethane * 1.1 10 Iodomethane * 1 10 Isobutyl alcohol * 26 100 Isobutyl alcohol * 20 100 Isopropyl alcohol * 21 100 Isopropyl alcohol * 14 100 Isopropylbenzene * 0.5 5 Isopropylbenzene * 0.5 5 M,p-Xylene * 1 10 m,p-Xylene * 1 10 Methacrylonitrile * 0.5 5 Methacrylonitrile * 1.7 5 Methyl acetate * 0.5 5 Methyl acetate * 0.5 5 Methyl acrylate * 5 5 Methyl acrylate * 0.5 5 Methyl methacrylate 0.5 5 Methyl methacrylate 0.5 5 Methyl tert-butyl ether * 0.5 5 Methyl tert-butyl ether 0.5 5 Methylcyclohexane * 0.8 5 Methylcyclohexane * 0.5 5 Methylene chloride * 0.5 10 Methylene chloride * 1 10 Naphthalene * 0.5 5 Naphthalene * 5 5 n-Butyl acetate 0.7 5 n-Butyl acetate 0.5 5 n-Butyl acrylate 0.5 5 n-Butyl acrylate 14 5 n-Butyl alcohol * 100 100 n-Butyl alcohol 0.5 100 n-Butylbenzene * 0.6 5 n-Butylbenzene * 0.5 5 n-Hexane 0.8 5 n-Hexane 0.5 5 n-Propylbenzene * 0.5 5 n-Propylbenzene * 5 5 o-Xylene * 0.5 5 o-Xylene * 5 5 Pentachloroethane * 5 5 Pentachloroethane * 3.5 5 Propionitrile * 9 50 Propionitrile * 0.5 50 Propylene oxide 1 10 Propylene oxide 0.5 10 sec-Butylbenzene * 0.5 5 Sec-Butylbenzene * 0.5 5 Styrene * 0.5 5 Styrene * 10 5 Tert-Amyl Methyl Ether * 5 5 Tert-Amyl Methyl Ether 0.5 5 Tert-Butyl Alcohol * 13 100 Tert-Butyl Alcohol * 0.5 100 tert-Butylbenzene * 0.6 5 Tert-Butylbenzene * 0.6 5 Tetrachloroethene * 0.6 5 Tetrachloroethene * 0.7 5 Tetrahydrofuran 0.6 5 Tetrahydrofuran 0.5 5 Toluene * 0.5 5 Toluene * 0.5 5 trans-1,2-Dichloroethene * 0.5 5 Trans-1,2-Dichloroethene * 0.5 5 trans-1,3-Dichloropropene * 0.5 5 Trans-1,3-Dichloropropene * 5 5 trans-1,4-Dichloro-2-butene * 0.8 5 Trans-1,4-Dichloro-2-butene * 0.5 5 Trichloroethene * 0.5 5 Trichloroethene * 0.5 5 Trichlorofluoromethane * 0.5 5 Trichlorofluoromethane * 1 5

### HS-QA Plan-Rev08.0 -Appendix C Effective: 09/01/2009 Page F8 of 14

© 2009 ALS Laboratory Group - All Rights Reserved 

### Table F.9.1 – SW8260C – Current LODs and LOQs, 5 ml purge – Houston Facility Analyte – water matrix

5 ml purge volume * NELAC Accredited LOD μg/L LOQ μg/L Analyte - solid/soil matrix based on 5 g dry weight sample * NELAC Accredited LOD μg/Kg LOQ μg/Kg

Vinyl acetate * 1 10 Vinyl acetate * 0.5 10 Vinyl chloride * 0.5 2 Vinyl chloride * 1 2 Xylenes, Total * 1 15 Xylenes, Total * 1.5 15



### Table F.9.2 - SW8260C Low Level Waters - Houston Facility Analyte - water matrix * NELAC accredited LOD
μ g/L LOQ
μ g/L Analyte – water matrix * NELAC accredited LOD
μ g/L LOQ
μ g/L 1,1,1,2-Tetrachloroethane* 0.2 1 Carbon tetrachloride* 0.2 1 1,1,1-Trichloroethane* 0.1 1 Chlorobenzene* 0.1 1 1,1,2,2-Tetrachloroethane* 0.2 1 Chloroethane* 0.3 1 1,1,2-Trichlor-1,2,2-trifluoroethane * 0.1 1 Chloroform* 0.1 1 1,1,2-Trichloroethane* 0.1 1 Chloromethane* 0.2 1 1,1-Dichloroethane* 0.2 1 cis-1,2-Dichloroethene 0.2 1 1,1-Dichloroethene* 0.2 1 cis-1,3-Dichloropropene* 0.1 1 1,1-Dichloropropene* 0.2 1 Cyclohexane 0.1 1 1,2,3-Trichlorobenzene* 0.2 1 Dibromochloromethane* 0.1 1 1,2,3-Trichloropropane 0.1 1 Dibromomethane* 0.2 1 1,2,4-Trichlorobenzene* 0.1 1 Dichlorodifluoromethane* 0.5 1 1,2,4-Trimethylbenzene* 0.1 1 Dicyclopentadiene 0.1 1 1,2-Dibromo-3-chloropropane * 0.1 1 Ethyl acrylate 0.1 1 1,2-Dibromoethane* 0.1 1 Ethylbenzene* 0.2 1 1,2-Dichlorobenzene* 0.1 1 Ethyl methacrylate * 0.1 1 1,2-Dichloroethane* 0.1 1 Hexachlorobutadiene* 0.4 1 1,2-Dichloropropane* 0.1 1 Iodomethane* 0.4 2 1,3,5-Trimethylbenzene* 0.1 1 Isopropylbenzene* 0.1 1 1,3-Dichlorobenzene* 0.1 1 m,p-Xylene* 0.2 2 1,3-Dichloropropane * 0.1 1 Methacrylonitrile * 0.2 2 1,4-Dichlorobenzene* 0.1 1 Methyl acetate * 0.1 1 1,4-Dioxane* 20 20 Methyl acrylate * 0.1 1
1-Chlorohexane* 0.2 1 Methyl methacrylate * 0.1 1 2,2-Dichloropropane* 0.1 1 Methyl tert-butyl ether* 0.2 1
2-Butanone* 0.4 2 Methylcyclohexane * 0.2 1 2-Chloro-1,3-butadiene 0.1 2 Methylene chloride* 0.1 2 2-Chloroethyl vinyl ether* 0.2 2 n-Butylbenzene* 0.1 1
2-Chlorotoluene* 0.2 1 n-Hexane 0.2 1
2-Hexanone* 0.2 2 n-Propylbenzene* 0.1 1 2-Methylnaphthalene 0.2 1 Naphthalene* 0.1 1
4-Chlorotoluene* 0.1 1 o-Xylene* 0.1 1 4-Isopropyltoluene* 0.1 1 Propylene oxide 0.9 2 4-Methyl-2-pentanone* 0.2 2 sec-Butylbenzene* 0.1 1 4-Vinyl-1-cyclohexene 0.1 1 Styrene* 0.1 1
Acetone* 1 2 tert-Butylbenzene* 0.1 1
Acetonitrile* 3.7 10 Tetrachloroethene* 0.3 1
Acrolein* 0.5 2 Toluene* 0.1 1

### HS-QA Plan-Rev08.0 -Appendix C Effective: 09/01/2009 Page F9 of 14

© 2009 ALS Laboratory Group - All Rights Reserved 

### Table F.9.2 - SW8260C Low Level Waters - Houston Facility Analyte - water matrix * NELAC accredited LOD
μ g/L LOQ
μ g/L Analyte – water matrix * NELAC accredited LOD
μ g/L LOQ
μ g/L Acrylonitrile* 0.7 2 trans-1,2-Dichloroethene* 0.3 1
Benzene* 0.1 1 trans-1,3-Dichloropropene* 0.1 1
Bromobenzene* 0.1 1 Trans-1,4-Dichloro-2-butene 0.3 1
Bromochloromethane* 0.2 1 Trichloroethene* 0.1 1
Bromodichloromethane* 0.2 1 Trichlorofluoromethane* 0.2 1
Bromoform* 0.3 2 Vinyl acetate* 0.7 1
Bromomethane* 0.3 2 Vinyl chloride* 0.4 1
Carbon disulfide* 0.2 1 Xylenes, Total * 0.3 3



### Table F.9.3 - EPA 624 - Houston Facility Analyte - water matrix * NELAC accredited LOD
μ g/L LOQ
μ g/L Analyte – water matrix * NELAC accredited LOD
μ g/L LOQ
μ g/L 1,1,1-Trichloroethane* 0.5 5 Chlorobenzene* 0.5 5 1,1,2,2-Tetrachloroethane* 0.5 5 Chloroethane* 1 5 1,1,2-Trichloroethane* 0.8 5 Chloroform* 0.5 5 1,1-Dichloroethane* 0.5 5 Chloromethane* 1 5 1,1-Dichloroethene* 0.8 5 cis-1,2-Dichloroethene * 0.6 5 1,2-Dichlorobenzene* 0.5 5 cis-1,3-Dichloropropene* 0.5 5 1,2-Dichloroethane* 0.5 5 Dibromochloromethane* 0.6 5 1,2-Dichloropropane* 0.7 5 Ethylbenzene* 0.5 5 1,3-Dichlorobenzene* 0.5 5 m,p-Xylene* 1 5 1,4-Dichlorobenzene* 0.5 5 Methylene chloride* 1.4 5
2-Butanone* 1 10 Methyl tert-butyl ether* 2-Chloroethyl vinyl ether* 0.8 10 o-Xylene* 0.6 5
Acetone* 1 10 Tetrachloroethene* 0.6 5
Acrolein* 2 20 Toluene* 0.5 5 Acrylonitrile* 3 20 trans-1,2-Dichloroethene* 0.5 5
Benzene* 0.5 5 trans-1,3-Dichloropropene* 0.5 5
Bromodichloromethane* 0.5 5 Trichloroethene* 0.7 5
Bromoform* 0.8 5 Trichlorofluoromethane* 0.5 5
Bromomethane* 1 5 Vinyl chloride* 1 5
Carbon tetrachloride* 0.5 5 Xylenes, Total * 1.5 15

Table F.10.1 - SW8270D - LODs and LOQs – Houston Facility Analyte – water matrix LOD LOQ Analyte - solid/soil matrix LOD LOQ

* NELAC accredited μg/L μg/L * NELAC accredited μg/Kg μg/Kg 1,1’-Biphenyl * 0.50 10 1,1’-Biphenyl * 30 167 1,2,4,5-Tetrachlorobenzene* 1.20 5 1,2,4,5-Tetrachlorobenzene* 30 167 1,2,4-Trichlorobenzene* 0.80 5 1,2,4-Trichlorobenzene* 30 167 1,2-Dichlorobenzene* 0.90 5 1,2-Dichlorobenzene* 30 167 1,2-Dinitrobenzene * 1.90 5 1,2-Dinitrobenzene * 68 167 1,2-Diphenylhydrazine* 0.80 5 1,2-Diphenylhydrazine* 40 167 1,3-Dichlorobenzene* 1.10 5 1,3-Dichlorobenzene* 30 167 1,3-Dinitrobenzene 1.60 5 1,3-Dinitrobenzene* 46 167 1,4-Dichlorobenzene* 1.10 5 1,4-Dichlorobenzene* 32 167

### HS-QA Plan-Rev08.0 -Appendix C Effective: 09/01/2009 Page F10 of 14

© 2009 ALS Laboratory Group - All Rights Reserved Table F.10.1 - SW8270D - LODs and LOQs – Houston Facility Analyte – water matrix LOD LOQ Analyte - solid/soil matrix LOD LOQ

* NELAC accredited μg/L μg/L * NELAC accredited μg/Kg μg/Kg 1,4-Dinitrobenzene * 1.50 5 1,4-Dinitrobenzene * 48 167 1,4-Dioxane 2.70 5 1,4-Dioxane 47 167 1,4-Naphthoquinone * 0.90 5 1,4-Naphthoquinone * 37 167 1- Chloronaphthalene* 0.50 5 1-Chloronaphthalene* 170 167 1-Methylnaphthalene 0.70 5 1-Methylnaphthalene 30 167 2,3,4,6-Tetrachlorophenol* 1.60 5 2,3,4,6-Tetrachlorophenol* 47 167 2,4,5-Trichlorophenol* 0.90 5 2,4,5-Trichlorophenol* 56 167 2,4,6-Trichlorophenol* 1.40 5 2,4,6-Trichlorophenol* 31 167 2,4-Dichlorophenol* 1.50 5 2,4-Dichlorophenol* 36 167 2,4-Dimethylphenol* 1.90 5 2,4-Dimethylphenol* 37 167 2,4-Dinitrophenol* 1.40 5 2,4-Dinitrophenol* 64 167 2,4-Dinitrotoluene* 1.00 5 2,4-Dinitrotoluene* 61 167 2,6-Dichlorophenol* 1.30 5 2,6-Dichlorophenol* 54 167 2,6-Dimethylphenol 0.70 5 2,6-Dimethylphenol 41 167 2,6-Dinitrotoluene* 1.10 5 2,6-Dinitrotoluene* 31 167 2-Chloronaphthalene* 1.10 5 2-Chloronaphthalene* 35 167 2-Chlorophenol* 1.10 5 2-Chlorophenol* 58 167 2-Methylnaphthalene* 0.90 5 2-Methylnaphthalene* 30 167 2-Methylphenol* 1.00 5 2-Methylphenol* 36 167 2-Nitroaniline* 1.40 5 2-Nitroaniline* 38 167 2-Nitrophenol* 1.20 5 2-Nitrophenol* 61 167 3 & 4-Methylphenol* 1.00 5 3 & 4-Methylphenol* 64 167 3,3 ́-Dichlorobenzidine* 0.90 5 3,3 ́-Dichlorobenzidine* 30 167 3-Methylcholanthrene * 1.20 5 3-Methylcholanthrene * 30 167 3-Nitroaniline* 1.40 5 3-Nitroaniline* 30 167 4,6-Dinitro-2-methylphenol * 0.90 5 4,6-Dinitro-2-methylphenol * 68 167 4-Bromophenyl phenyl ether* 1.20 5 4-Bromophenyl phenyl ether* 42 167 4-Bromopyrazole 2.10 5 4-Bromopyrazole 76 167 4-Chloro-3-methylphenol* 0.80 5 4-Chloro-3-methylphenol* 60 167 4-Chloroaniline* 0.80 5 4-Chloroaniline* 31 167 4-Chlorophenyl phenyl ether* 1.00 5 4-Chlorophenyl phenyl ether* 30 167 4-Nitroaniline* 1.60 5 4-Nitroaniline* 41 167 4-Nitrophenol* 1.90 5 4-Nitrophenol* 61 167 4-Nitroquinoline-1-oxide 2.00 5 4-Nitroquinoline-1-oxide 88 167 7,12-Dimethylbenz(a)anthracene* 0.90 5 7,12-Dimethylbenz(a)anthracene* 37 167 Acenaphthene* 0.90 5 Acenaphthene* 30 167 Acenaphthylene* 0.50 5 Acenaphthylene* 30 167 Acetophenone * 0.90 5 Acetophenone* 30 167 Aniline* 0.70 5 Aniline* 30 167 Anthracene* 0.60 5 Anthracene* 30 167
Aramite* 1.60 5 Aramite* 61 167 Atrazine* 1.00 5 Atrazine* 46 167 Azobenzene* 1.00 5 Azobenzene* 30 167 Benz(a)anthracene* 0.50 5 Benz(a)anthracene* 30 167 Benzaldehyde 1.30 5 Benzaldehyde 43 167 Benzidine* 5.00 5 Benzidine* 167 167

### HS-QA Plan-Rev08.0 -Appendix C Effective: 09/01/2009 Page F11 of 14

© 2009 ALS Laboratory Group - All Rights Reserved Table F.10.1 - SW8270D - LODs and LOQs – Houston Facility Analyte – water matrix LOD LOQ Analyte - solid/soil matrix LOD LOQ

* NELAC accredited μg/L μg/L * NELAC accredited μg/Kg μg/Kg Benzo(a)pyrene* 0.60 5 Benzo(a)pyrene* 30 167 Benzo(b)fluoranthene* 0.70 5 Benzo(b)fluoranthene* 30 167 Benzo(g,h,i)perylene* 0.50 5 Benzo(g,h,i)perylene* 30 167 Benzo(k)fluoranthene* 0.90 5 Benzo(k)fluoranthene* 30 167
Benzoic acid* 5.00 5 Benzoic acid* 33 167 Benzyl alcohol* 0.60 5 Benzyl alcohol* 36 167 Bis(2-chloroethoxy)methane* 0.50 5 Bis(2-chloroethoxy)methane* 30 167 Bis(2-chloroethyl)ether* 1.00 5 Bis(2-chloroethyl)ether* 34 167 Bis(2-chloroisopropyl)ether* 0.60 5 Bis(2-chloroisopropyl)ether* 30 167 Bis(2-ethylhexyl)phthalate* 3.30 5 Bis(2-ethylhexyl)phthalate* 30 167 Butyl benzyl phthalate * 0.70 5 Butyl benzyl phthalate * 30 167 Caprolactam* 5.00 5 Caprolactam* 51 167 Carbazole * 0.50 5 Carbazole * 30 167 Chlorobenzilate* 1.20 5 Chlorobenzilate* 32 167 Chlorothalonil 0.90 5 Chlorothalonil 55 167 Chrysene* 0.80 5 Chrysene* 30 167
Dacthal 0.90 5 Dacthal 36 167 Di-n-butyl phthalate* 0.50 5 Di-n-butyl phthalate* 30 167 Di-n-octyl phthalate* 0.60 5 Di-n-octyl phthalate* 30 167 Dibenz(a,h)anthracene * 0.80 5 Dibenz(a,h)anthracene* 30 167 Dibenz(a,j)acridine * 1.10 5 Dibenz(a,j)acridine * 30 167 Dibenzofuran * 0.70 5 Dibenzofuran* 30 167 Diethyl phthalate* 0.50 5 Diethyl phthalate* 30 167 Dimethyl phthalate* 0.50 5 Dimethyl phthalate* 30 167 Diphenylamine* 0.70 5 Diphenylamine* 30 167 Ethyl methacrylate 1.00 5 Ethyl methacrylate 30 167 Ethyl methanesulfonate* 0.80 5 Ethyl methanesulfonate* 32 167 Fluoranthene* 0.50 5 Fluoranthene* 30 167
Fluorene* 0.60 5 Fluorene* 30 167 Hexachlorobenzene* 1.10 5 Hexachlorobenzene* 32 167 Hexachlorobutadiene* 1.10 5 Hexachlorobutadiene* 34 167 Hexachlorocyclopentadiene* 2.30 5 Hexachlorocyclopentadiene* 41 167 Hexachloroethane* 1.00 5 Hexachloroethane* 39 167 Hexachloropropene * 2.50 5 Hexachloropropene * 30 167 Indeno(1,2,3-cd)pyrene* 1.30 5 Indeno(1,2,3-cd)pyrene* 30 167 Isodrin* 1.30 5 Isodrin* 50 167 Isophorone* 0.60 5 Isophorone* 30 167 Isophthalonitrile 0.50 5 Isophthalonitrile 30 167 Isosafrole * 0.80 5 Isosafrole* 35 167 Kepone * 5.00 5 Kepone * 167 167 Methapyrilene * 1.40 5 Methapyrilene * 30 167 Methyl methanesulfonate* 1.20 5 Methyl methanesulfonate* 37 167 N-Nitrosodiethylamine * 0.80 5 N-Nitrosodiethylamine * 47 167 N-Nitroso-di-n-butylamine * 0.90 5 N-Nitroso-di-n-butylamine * 44 167 N-Nitrosodi-n-propylamine* 0.90 5 N-Nitrosodi-n-propylamine* 30 167 N-Nitrosodimethylamine* 0.80 5 N-Nitrosodimethylamine* 46 167

### HS-QA Plan-Rev08.0 -Appendix C Effective: 09/01/2009 Page F12 of 14

© 2009 ALS Laboratory Group - All Rights Reserved Table F.10.1 - SW8270D - LODs and LOQs – Houston Facility Analyte – water matrix LOD LOQ Analyte - solid/soil matrix LOD LOQ

* NELAC accredited μg/L μg/L * NELAC accredited μg/Kg μg/Kg N-Nitrosomethylethylamine * 0.80 5 N-Nitrosomethylethylamine * 56 167 N-Nitrosodiphenylamine* 0.70 5 N-Nitrosodiphenylamine* 30 167 N-Nitrosomorpholine * 1.10 5 N-Nitrosomorpholine * 84 167 N-Nitrosopiperidine * 1.10 5 N-Nitrosopiperidine * 38 167 N-Nitrosopyrrolidine * 1.10 5 N-Nitrosopyrrolidine * 41 167 Naphthalene* 0.60 5 Naphthalene* 30 167 Nitrobenzene* 0.80 5 Nitrobenzene* 33 167
Pentachlorobenzene* 1.40 5 Pentachlorobenzene* 36 167 Pentachloroethane 2.20 5 Pentachloroethane 53 167 Pentachloronitrobenzene* 3.10 5 Pentachloronitrobenzene* 59 167 Pentachlorophenol* 1.60 5 Pentachlorophenol* 70 167 Phenacetin* 0.50 5 Phenacetin* 30 167 Phenanthrene* 0.50 5 Phenanthrene* 30 167
Phenol* 0.50 5 Phenol* 30 167 Pronamide* 1.20 5 Pronamide* 30 167 Pyrazole 1.30 5 Pyrazole 61 167 Pyrene* 0.50 5 Pyrene* 30 167 Pyridine* 2.00 5 Pyridine* 30 167 Quinazoline 0.80 5 Quinazoline 30 167 Quinoline * 0.60 5 Quinoline * 30 167 Safrole* 1.20 5 Safrole * 36 167 Sym-Trinitrobenzene * 1.70 5 Sym-Trinitrobenzene * 167 167



### Table F.10.2 - SW8270D – Low Level Method – Houston Facility Analyte – water matrix MDL MQL Analyte - solid/soil matrix MDL MQL

* NELAC accredited μg/L μg/L * NELAC accredited μg/Kg μg/Kg 1,1 ́-Biphenyl * 0.10 0.2 1,1’-Biphenyl * 2.9 6.6 1,2,4-Trichlorobenzene * 0.12 0.2 1,2,4-Trichlorobenzene * 3.9 6.6 1,2-Dichlorobenzene * 0.13 0.2 1,2-Dichlorobenzene * 3.3 6.6 1,2-Diphenylhydrazine * 0.10 0.2 1,2-Diphenylhydrazine * 2.2 6.6 1,3-Dichlorobenzene * 0.14 0.2 1,3-Dichlorobenzene * 3.7 6.6 1,4-Dichlorobenzene * 0.12 0.2 1,4-Dichlorobenzene * 3.6 6.6 1-Methylnaphthalene 0.09 0.2 1-Methylnaphthalene 2.3 6.6 2,4,5-Trichlorophenol * 0.09 0.2 2,4,5-Trichlorophenol * 2.8 6.6 2,4,6-Trichlorophenol * 0.07 0.2 2,4,6-Trichlorophenol* 3.3 6.6 2,4-Dichlorophenol * 0.08 0.2 2,4-Dichlorophenol * 2.2 6.6 2,4-Dimethylphenol * 0.08 0.2 2,4-Dimethylphenol * 3.3 6.6 2,4-Dinitrophenol * 0.08 1.0 2,4-Dinitrophenol * 3.3 33 2,4-Dinitrotoluene * 0.09 0.2 2,4-Dinitrotoluene * 3.3 6.6 2,6-Dinitrotoluene * 0.07 0.2 2,6-Dinitrotoluene * 3.2 6.6 2-Chloronaphthalene * 0.10 0.2 2-Chloronaphthalene * 4.1 6.6 2-Chlorophenol * 0.08 0.2 2-Chlorophenol * 3.2 6.6 2-Methylnaphthalene * 0.07 0.2 2-Methylnaphthalene * 2.7 6.6 2-Methylphenol * 0.08 0.2 2-Methylphenol * 2.9 6.6
2-Nitroaniline * 0.10 0.2 2-Nitroaniline * 3.3 6.6

### HS-QA Plan-Rev08.0 -Appendix C Effective: 09/01/2009 Page F13 of 14

© 2009 ALS Laboratory Group - All Rights Reserved 

### Table F.10.2 - SW8270D – Low Level Method – Houston Facility Analyte – water matrix MDL MQL Analyte - solid/soil matrix MDL MQL

* NELAC accredited μg/L μg/L * NELAC accredited μg/Kg μg/Kg 2-Nitrophenol * 0.07 0.2 2-Nitrophenol * 4.6 6.6 3&4-Methylphenol * 0.10 0.2 3 & 4-Methylphenol * 2.8 6.6 3,3'-Dichlorobenzidine * 0.07 0.2 3,3 ́-Dichlorobenzidine * 3.1 6.6 3-Nitroaniline * 0.08 0.2 3-Nitroaniline * 2.6 6.6 4,6-Dinitro-2-methylphenol * 0.08 0.2 4,6-Dinitro-2-methylphenol * 3.3 6.6 4-Bromophenyl phenyl ether * 0.09 0.2 4-Bromophenyl phenyl ether * 3.3 6.6 4-Chloro-3-methylphenol * 0.10 0.2 4-Chloro-3-methylphenol * 3.3 6.6 4-Chloroaniline * 0.07 0.2 4-Chloroaniline * 2.2 6.6 4-Chlorophenyl phenyl ether * 0.08 0.2 4-Chlorophenyl phenyl ether * 2.2 6.6
4-Nitroaniline * 0.07 0.2 4-Nitroaniline * 3.3 6.6 4-Nitrophenol * 0.07 1.0 4-Nitrophenol * 3.8 33 Acenaphthene* 0.09 0.2 Acenaphthene* 2.2 6.6 Acenaphthylene* 0.07 0.2 Acenaphthylene* 2.2 6.6 Acetophenone * 0.10 0.2 Acetophenone * 2.4 6.6
Aniline * 0.10 0.2 Aniline - 2.2 6.6 Anthracene* 0.07 0.2 Anthracene* 2.2 6.6
Atrazine * 0.08 0.2 Atrazine * 3.3 6.6 Benz(a)anthracene* 0.07 0.2 Benz(a)anthracene* 2.8 6.6 Benzaldehyde 0.12 0.2 Benzaldehyde 4.6 6.6 Benzidine * 0.10 0.2 Benzidine * 6.6 6.6 Benzo(a)pyrene* 0.08 0.2 Benzo(a)pyrene* 2.3 6.6 Benzo(b)fluoranthene* 0.09 0.2 Benzo(b)fluoranthene* 3.3 6.6 Benzo(g,h,i)perylene* 0.09 0.2 Benzo(g,h,i)perylene* 2.9 6.6 Benzo(k)fluoranthene* 0.10 0.2 Benzo(k)fluoranthene* 3.3 6.6 Benzoic acid * 0.14 0.2 Benzoic acid * 6.6 6.6 Benzyl alcohol * 0.09 0.2 Benzyl alcohol * 3.1 6.6 Bis(2-chloroethoxy) methane * 0.09 0.2 Bis(2-chloroethoxy)methane * 2.4 6.6 Bis(2-chloroethyl) ether * 0.07 0.2 Bis(2-chloroethyl)ether * 2.8 6.6 Bis(2-chloroisopropyl) ether * 0.07 0.2 Bis(2-chloroisopropyl)ether * 2.7 6.6 Bis(2-ethylhexyl)phthalate * 0.20 0.2 Bis(2-ethylhexyl)phthalate * 6.6 6.6 Butyl benzyl phthalate * 0.10 0.2 Butyl benzyl phthalate * 2.5 6.6 Caprolactam * 0.08 0.2 Caprolactam * 2.4 6.6 Carbazole * 0.07 0.2 Carbazole * 2.2 6.6 Chrysene* 0.07 0.2 Chrysene* 2.9 6.6 Di-n-butylphthalate * 0.07 0.2 Di-n-butyl phthalate * 2.5 6.6 Di-n-octylphthalate * 0.09 0.2 Di-n-octyl phthalate * 2.9 6.6 Dibenz(a,h)anthracene* 0.08 0.2 Dibenz(a,h)anthracene* 2.2 6.6
Dibenzofuran * 0.08 0.2 Dibenzofuran * 2.2 6.6 Diethylphthalate * 0.07 0.2 Diethyl phthalate * 3.3 6.6 Dimethylphthalate * 0.10 0.2 Dimethyl phthalate* 2.4 6.6 Diphenylamine * 0.09 0.2 Diphenylamine * 2.2 6.6 Fluoranthene* 0.07 0.2 Fluoranthene* 2.2 6.6
Fluorene* 0.07 0.2 Fluorene* 2.2 6.6 Hexachlorobenzene * 0.10 0.2 Hexachlorobenzene * 2.6 6.6 Hexachlorobutadiene * 0.15 0.2 Hexachlorobutadiene * 4.4 6.6

### HS-QA Plan-Rev08.0 -Appendix C Effective: 09/01/2009 Page F14 of 14

© 2009 ALS Laboratory Group - All Rights Reserved 

### Table F.10.2 - SW8270D – Low Level Method – Houston Facility Analyte – water matrix MDL MQL Analyte - solid/soil matrix MDL MQL

* NELAC accredited μg/L μg/L * NELAC accredited μg/Kg μg/Kg Hexachlorocyclopentadiene * 0.08 0.2 Hexachlorocyclopentadiene * 3.6 6.6 Hexachloroethane * 0.17 0.2 Hexachloroethane * 3.9 6.6 Indeno(1,2,3-cd)pyrene* 0.10 0.2 Indeno(1,2,3-cd)pyrene* 3.5 6.6 Isophorone * 0.07 0.2 Isophorone * 3.0 6.6 Naphthalene* 0.10 0.2 Naphthalene* 3.3 6.6 Nitrobenzene * 0.09 0.2 Nitrobenzene * 3.3 6.6 N-Nitrosodi-n-propylamine * 0.10 0.2 N-Nitrosodi-n-propylamine * 4.0 6.6 N-Nitrosodimethylamine * 0.10 0.2 N-Nitrosodimethylamine * 4.1 6.6 N-Nitrosodiphenylamine * 0.09 0.2 N-Nitrosodiphenylamine * 2.2 6.6 Pentachlorophenol * 0.08 0.2 Pentachlorophenol * 2.8 6.6 Phenanthrene* 0.07 0.2 Phenanthrene* 3.0 6.6
Phenol * 0.07 0.2 Phenol * 3.3 6.6 Pyrene* 0.07 0.2 Pyrene* 2.2 6.6 Pyridine * 0.08 1 Pyridine * 3.3 6.6 Quinoline * 0.08 0.2 Quinoline * 2.2 6.6



### Table F.11 - EPA 625 - LODs and LOQs - Houston Facility Analyte – water matrix LOD LOQ Analyte – water matrix LOD LOQ

* NELAC accredited μg/L μg/L * NELAC accredited μg/L μg/L 1,2,4-Trichlorobenzene* 0.9 5 Bis(2-chloroethoxy)methane* 0.8 5 1,2-Dichlorobenzene* 0.7 5 Bis(2-chloroethyl)ether* 0.8 5 1,2-Diphenylhydrazine 1.0 5 Bis(2-chloroisopropyl)ether* 0.8 5 1,3-Dichlorobenzene* 0.8 5 Bis(2-ethylhexyl)phthalate* 1.2 5 1,4-Dichlorobenzene* 0.7 5 Butyl benzyl phthalate* 0.8 5 2,4,5-Trichlorophenol* 1.3 9 Chrysene* 1.0 5 2,4,6-Trichlorophenol* 1.6 5 Di-n-butyl phthalate* 0.7 5 2,4-Dichlorophenol* 1.6 5 Di-n-octyl phthalate* 0.6 5 2,4-Dimethylphenol* 1.5 5 Dibenz(a,h)anthracene* 0.6 5 2,4-Dinitrophenol* 1.6 5 Diethyl phthalate* 0.8 5 2,4-Dinitrotoluene* 0.9 5 Dimethyl phthalate* 0.9 5 2,6-Dinitrotoluene* 1.0 5 Fluoranthene* 0.6 5 2-Chloronaphthalene* 0.9 5 Fluorene* 0.8 5 2-Chlorophenol* 1.8 5 Hexachlorobenzene* 0.6 5 2-Nitrophenol* 1.3 5 Hexachlorobutadiene* 0.9 5 3,3 ́-Dichlorobenzidine* 0.7 5 Hexachlorocyclopentadiene* 0.6 5 4,6-Dinitro-2-methylphenol 1.0 5 Hexachloroethane* 1.4 5 4-Bromophenyl phenyl ether* 0.9 5 Indeno(1,2,3-cd)pyrene* 0.6 5 4-Chloro-3-methylphenol* 1.1 5 Isophorone* 0.9 5 4-Chlorophenyl phenyl ether* 0.9 5 N-Nitrosodi-n-propylamine* 1.0 5 4-Nitrophenol* 1.0 5 N-Nitrosodimethylamine* 0.9 5 Acenaphthene* 0.8 5 N-Nitrosodiphenylamine* 0.7 5 Acenaphthylene* 0.7 5 Naphthalene* 0.8 5 Anthracene* 0.7 5 Nitrobenzene* 0.8 5
Benzidine* 5.0 5 Pentachlorobenzene* 0.8 5 Benz(a)anthracene* 0.6 5 Pentachlorophenol* 1.5 5

### HS-QA Plan-Rev08.0 -Appendix C Effective: 09/01/2009 Page F15 of 14

© 2009 ALS Laboratory Group - All Rights Reserved 

### Table F.11 - EPA 625 - LODs and LOQs - Houston Facility Analyte – water matrix LOD LOQ Analyte – water matrix LOD LOQ

* NELAC accredited μg/L μg/L * NELAC accredited μg/L μg/L Benzo(a)pyrene* 0.7 5 Phenanthrene* 0.7 5 Benzo(b)fluoranthene* 0.8 5 Phenol* 1.5 5 Benzo(g,h,i)perylene* 0.9 5 Pyrene* 0.9 5 Benzo(k)fluoranthene* 0.6 5



### Table F.12 - SW 8330A LODs and LOQs - Houston Facility Analyte – water matrix

* NELAC accredited LOD
μ g/L LOQ
μ g/L Analyte - solid/soil matrix * NELAC accredited LOD
μ g/Kg LOQ
μ g/Kg

HMX* 0.10 0.45 HMX* 40 250
RDX* 0.10 0.45 RDX* 40 250 1,3,5-Trinitrobenzene* 0.10 0.45 1,3,5-Trinitrobenzene* 80 250 1,3-Dinitrobenzene* 0.10 0.45 1,3-Dinitrobenzene* 40 250 Tetryl* 0.10 0.45 Tetryl* 74 500
Nitrobenzene* 0.10 0.45 Nitrobenzene* 40 250 2,4,6-Trinitrotoluene* 0.10 0.45 2,4,6-Trinitrotoluene* 40 250 4-Amino-2,6-dinitrotoluene* 0.10 0.45 4-Amino-2,6-dinitrotoluene* 40 250 2-Amino-4, 6-dinitrotoluene* 0.10 0.45 2-Amino-4, 6-dinitrotoluene* 40 250 2,4-Dinitrotoluene* 0.10 0.45 2,4-Dinitrotoluene* 40 250 2,6-Dinitrotoluene* 0.10 0.45 2,6-Dinitrotoluene* 40 250
2-Nitrotoluene* 0.10 0.45 2-Nitrotoluene* 40 250
3-Nitrotoluene* 0.10 0.45 3-Nitrotoluene* 40 250
4-Nitrotoluene* 0.10 0.45 4-Nitrotoluene* 40 250



### Table F.13.1 - Formaldehyde by SW 8315A - LOD and LOQ - Houston Facility Analyte – water matrix

* NELAC accredited LOD
μ g/L LOQ
μ g/L Analyte - solid/soil matrix * NELAC accredited LOD
μ g/Kg LOQ
μ g/Kg 

### Formaldehyde * 1 5 Formaldehyde * 100 100

Table F.13.2 - Formaldehyde by SW 8316 - LOD and LOQ - Houston Facility Analyte – water matrix

* NELAC accredited LOD
μ g/L LOQ
μ g/L Analyte - solid/soil matrix * NELAC accredited LOD
μ g/Kg LOQ
μ g/Kg 

### Acrylamide * 0.24 1.0 Acrylamide * 0.24 1.0

### HS-QA Plan-Rev08.0 -Appendix C Effective: 09/01/2009 Page G1 of 13

© 2009 ALS Laboratory Group - All Rights Reserved 

## Appendix G – Method Acceptance Criteria for LCS

Table G.1 - Wet Chemistry - LCS Recovery Limits – Houston Facility Analyte - Water Matrix SPK mg/L Low High RPD Analyte - Soil Matrix SPK mg/Kg Low High RPD

PH / E150.2/SW9040 (standard units) - 90 110 20 pH / E150.2/SW9045 (standard units) 50 78 122 30

Specific Conductance / E120.0 SW9050 (umhos/cm) - 85 115 20

Total Dissolved Solids / EPA160.2/ SM 2540C 1000 85 115 20

Total Suspended Solids / EPA 160.1 / SM 2540D 100 72 115 20

Total Solids / EPA 160.3 1000 80 120 20 Total Alkalinity / SM2320B/E 310.1 1000 85 115 20 Chrome VI - SW 7196A – SM3500 0.25 86 117 15 Chrome VI by SW 7196 25 81 115 25 Ferrous Iron by SM 3500-Fe D 0.25 85 115 20 Ammonia as N - SM4500 NH3-D 10 80 120 20 Ammonia as N - SM4500 NH3-B-F 0.2 80 120 20 T. Kjeldahl Nitrogen – SM4500 10 80 120 20 Fluoride by SM 4500 F BC (ISE) 4 80 120 20 Fluoride by SW 9214 (ISE) 4 80 120 20 Bromide by EPA 300 / SW9056A 4 90 110 20 Bromide by EPA 300 / SW9056A 40 90 110 20 Chloride by EPA 300 / SW9056A 20 90 110 20 Chloride by EPA 300 / SW9056A 200 90 110 20 Fluoride by EPA 300 / SW9056A 4 90 110 20 Fluoride by EPA 300 / SW9056A 40 90 110 20 Sulfate by EPA 300 / SW9056A 20 90 110 20 Sulfate by EPA 300 / SW9056A 200 90 110 20 Nitrate as N - E300 / SW9056A 4 90 110 20 Nitrate as N - E300 / SW9056A 40 90 110 20 Nitrite as N – E300 / SW9056A 4 90 110 20 Nitrite as N – E300 / SW9056A 40 90 110 20 O-Phosphorous (P) E300/SW9056A 4 90 110 20 O-Phosphorous (P) E300/SW9056A 40 90 110 20 Ortho Phosphorous (P) E365.3 0.25 85 115 20 Total Phosphorous (P) E365.3 0.25 85 115 20 Total Organic Carbon - E415.1/ SW9060A / SM5310C 10 80 120 20 Total Organic Carbon – SW 9060A M for soil 0.6 %wt 80 120 20

Chemical Oxygen Demand – Hach 100 80 120 20 Biochemical Oxygen Demand - E405.1 / SM5210B 198 85 115 20

Phenolics, Tot Recoverable – SW9065 - E420.1 0.5 80 120 20 Phenolics, Tot Recoverable SW9065 25 80 120 20

Perchlorate - E314.0 (unit = μ g/L ) 25 85 115 20 Total Cyanide - SW9010/9014 0.10 80 120 20 Total Cyanide - SW9010/9014 5.0 80 120 30 Total Cyanide – SM 4500CN E 0.10 80 120 20 Oil &Grease, EPA 1664A 40 80 120 20 Oil &Grease, EPA1664A/SW9071B 2670 80 120 20

Table G.3.1 - TPH LCS Recovery Limits - Houston Analyte – Water Matrix SPK mg/L Low High RPD Analyte – Soil Matrix SPK mg/Kg Low High RPD

NC6-nC12 / TX1005 25 75 125 20 NC6-nC12 / TX1005 250 75 125 30 >nC12 to nC28 / TX1005 25 75 125 20 >nC12 to nC28 / TX1005 250 75 125 30 Total Petroleum Hydrocarbons 50 75 125 20 Total Petroleum Hydrocarbons 500 75 125 30 2-Fluorobiphenyl (Surr) TX1005 5 70 130 20 2-Fluorobiphenyl (Surr) TX1005 50 70 130 30 Trifluorotoluene (Surr) TX1005 5 70 130 20 Trifluorotoluene (Surr) TX1005 50 70 130 30 TPH (TX1006) 50 60 140 20 TPH (TX1006) 500 60 140 30

### HS-QA Plan-Rev08.0 -Appendix C Effective: 09/01/2009 Page G2 of 13

© 2009 ALS Laboratory Group - All Rights Reserved

Table G.3.1 - TPH LCS Recovery Limits - Houston Analyte – Water Matrix SPK mg/L Low High RPD Analyte – Soil Matrix SPK mg/Kg Low High RPD

Gasoline Range (Purgeable) by SW8015C 1.0 70 130 20 Gasoline Range (Purgeable) by SW8015C 1.0 70 130 30

Diesel Range by SW8015C 1.0 70 130 20 Diesel Range by SW8015C 33 70 130 30 Oil Range by SW8015C 1.0 70 130 20 Oil Range by SW8015C 33 70 130 30

Table G.3.2 - Nonhalogenated Organics by 8015C - LCS Recovery Limits – Houston Facility Analyte – Water Matrix SPK mg/L Low High RPD Analyte – Soil Matrix SPK mg/Kg Low High RPD

Ethylene Glycol 100 70 130 20 Ethylene Glycol 100 70 130 30 1-Propanol 10 70 130 20 1-Propanol 10 70 130 30 2-Propanol 10 70 130 20 2-Propanol 10 70 130 30 Isobutanol 10 70 130 20 Isobutanol 10 70 130 30 Propylene glycol 100 70 130 20 Propylene glycol 100 70 130 30 Ethanol 10 70 130 20 Ethanol 10 70 130 30 Methanol 10 70 130 20 Methanol 10 70 130 30

Table G.3.3 - - Dissolved Gases by Headspace Analysis of waters, RSK-175. LCS Recovery Limits – Houston Facility Analyte – Water Matrix SPK
μ g/L Low High RPD Analyte – Water Matrix SPK
μ g/L Low High RPD

Ethane 18.0 75 125 20 Methane 9.62 75 125 20 Ethene 16.8 75 125 20



### Table G.4.1 - SW 8011 LCS Recovery Limits – Houston Facility Analyte - Water Matrix SPK μg/L Low High RPD Analyte - Water Matrix SPK μg/L Low High RPD

1,2-Dibromoethane 0.25 60 140 20 1,2-Dibromo-3-chloropropane 0.25 60 140 20 1,2,3-Trichloropropane 0.25 60 140 20



### Table G.4.2 - EPA 504.1 LCS Recovery Limits – Houston Facility Analyte - Water Matrix SPK μg/L Low High RPD Analyte - Water Matrix SPK μg/L Low High RPD

1,2-Dibromoethane 0.25 70 130 20 1,2-Dibromo-3-chloropropane 0.25 70 130 20 1,2,3-Trichloropropane 0.25 70 130 20



### Table G.4.3 - EPA 504.1 MS Recovery Limits – Houston Facility Analyte - Water Matrix SPK μg/L Low High RPD Analyte - Water Matrix SPK μg/L Low High RPD

1,2-Dibromoethane 0.25 65 135 20 1,2-Dibromo-3-chloropropane 0.25 65 135 20 1,2,3-Trichloropropane 0.25 65 135 20

Table G.5 - BTEX by SW 8021B LCS Recovery Limits – Houston Facility Analyte – Water Matrix SPK μg/L Low High RPD Analyte - Soil Matrix SPK μg/Kg Low High RPD

Benzene 20 77 126 20 Benzene 20 74 129 30 Ethylbenzene 20 76 125 20 Ethylbenzene 20 73 127 30 Toluene 20 80 124 20 Toluene 20 75 128 30 M,p-Xylene 40 79 124 20 m,p-Xylene 40 74 127 30 o-Xylene 20 79 124 20 p-Xylene 20 74 127 30 Xylenes, Total 60 79 124 20 Xylenes, Total 60 74 127 30

### HS-QA Plan-Rev08.0 -Appendix C Effective: 09/01/2009 Page G3 of 13

© 2009 ALS Laboratory Group - All Rights Reserved Table G.5 - BTEX by SW 8021B LCS Recovery Limits – Houston Facility Analyte – Water Matrix SPK μg/L Low High RPD Analyte - Soil Matrix SPK μg/Kg Low High RPD

Methyl tert-butyl ether 100 75 128 20 Methyl tert-butyl ether 100 73 128 30 4-BFB (Surr) 30 77 129 20 4-BFB (Surr) 30 75 131 30 Trifluorotoluene (Surr) 30 75 130 20 Trifluorotoluene (Surr) 30 73 130 30



### Table G.6 - SW 8081B LCS Recovery Limits – Houston Facility Analyte – Water Matrix SPK μg/L Low High RPD Analyte - Soil Matrix SPK μg/Kg Low High RPD

4,4'-DDD 0.5 53 144 30 4,4'-DDD 16.7 53 138 30 4,4'-DDE 0.5 55 144 30 4,4'-DDE 16.7 57 136 30 4,4'-DDT 0.5 53 149 30 4,4'-DDT 16.7 53 139 30 Aldrin 0.25 47 141 30 Aldrin 8.33 52 130 30 Alpha-BHC 0.25 51 141 30 Alpha-BHC 8.33 52 130 30 Beta-BHC 0.25 58 144 30 Beta-BHC 8.33 62 130 30 Delta-BHC 0.25 48 146 30 Delta-BHC 8.33 41 137 30 Dieldrin 0.5 56 144 30 Dieldrin 16.7 54 138 30 Endosulfan I 0.25 55 141 30 Endosulfan I 8.33 55 132 30 Endosulfan II 0.5 57 144 30 Endosulfan II 16.7 59 134 30 Endosulfan sulfate 0.5 58 145 30 Endosulfan sulfate 16.7 54 141 30 Endrin 0.5 60 163 30 Endrin 16.7 60 157 30 Endrin aldehyde 0.5 59 158 30 Endrin aldehyde 16.7 56 146 30 Endrin ketone 0.5 59 154 30 Endrin ketone 16.7 56 153 30 Gamma-BHC (Lindane) 0.25 53 142 30 Gamma-BHC (Lindane) 8.33 52 133 30 Heptachlor 0.25 51 144 30 Heptachlor 8.33 54 134 30 Heptachlor epoxide 0.25 55 142 30 Heptachlor epoxide 8.33 58 130 30 Methoxychlor 0.25 59 150 30 Methoxychlor 16.7 60 140 30 Alpha-Chlordane 0.25 55 141 30 Alpha-Chlordane 8.33 55 132 30 Gamma-Chlordane 0.25 55 137 30 Gamma-Chlordane 8.33 60 129 30 Mirex 0.5 50 150 30 Mirex 16.7 50 150 30 Hexachlorobenzene 0.5 50 150 30 Hexachlorobenzene 16.7 50 150 30 Decachlorobiphenyl (Surr) 0. 2 61 154 30 Decachlorobiphen yl (Surr) 6.67 66 150 30 Tetrachloro-m-xylene (Surr) 0.2 60 144 30 Tetrachloro-m-xylene (Surr) 6.67 63 135 30



### Table G.7 - SW 8082A LCS Recovery Limits - Houston Facility Analyte - Water Matrix SPK μg/L Low High RPD Analyte - Soil Matrix SPK μg/Kg Low High RPD

Aroclor 1016 5 54 138 30 Aroclor 1016 167 53 135 30 Aroclor 1260 5 57 136 30 Aroclor 1260 167 54 137 30 Decachlorobiphenyl (Surr) 0. 2 54 140 30 Decachlorobiphen yl (Surr) 6.67 54 143 30 Tetrachloro-m-xylene (Surr) 0.2 53 137 30 Tetrachloro-m-xylene (Surr) 6.67 55 137 30

Table G.8 - SW 8151A LCS Recovery Limits,- Houston Facility Analyte - Water Matrix SPK μg/L Low High RPD Analyte - Soil Matrix SPK Low High RPD

2,4,5-T 0.25 46 127 20 2,4,5-T 0.5 41 149 30 2,4,5-TP (Silvex) 0.25 54 145 20 2,4,5-TP (Silvex) 0.5 54 142 30 2,4-D 0.25 31 120 20 2,4-D 0.5 31 120 30 2,4-DB 0.25 43 147 20 2,4-DB 0.5 55 147 30 Dalapon 0.25 28 153 20 Dalapon 0.5 49 144 30 Dicamba 0.25 39 122 20 Dicamba 0.5 41 132 30

### HS-QA Plan-Rev08.0 -Appendix C Effective: 09/01/2009 Page G4 of 13

© 2009 ALS Laboratory Group - All Rights Reserved Table G.8 - SW 8151A LCS Recovery Limits,- Houston Facility Analyte - Water Matrix SPK μg/L Low High RPD Analyte - Soil Matrix SPK Low High RPD

Dichlorprop 0.25 53 128 20 Dichlorprop 0.5 53 124 30 Dinoseb 0.25 41 128 20 Dinoseb 0.5 41 135 30 MCPA 25 43 126 20 MCPA 50 37 131 30 MCPP 25 43 128 20 MCPP 50 39 131 30 DCAA (Surr) 0.50 43 130 20 DCAA (Surr) 0.5 47 135 30



### Table G.9.1 - SW8260C LCS Recovery Limits - Houston Facility Analyte – Water Matrix SPK μg/L Low High RPD Analyte – Soil Matrix SPK μg/Kg Low High RPD

1,1,1,2-Tetrachloroethane 50 78 120 20 1,1,1,2-Tetrachloroethane 50 80 120 30 1,1,1-Trichloroethane 50 80 122 20 1,1,1-Trichloroethane 50 80 127 30 1,1,2,2-Tetrachloroethane 50 75 120 20 1,1,2,2-Tetrachloroethane 50 72 124 30 1,1,2-Trichlor-1,2,2- trifluoroethane 50 75 125 20 1,1,2-Trichlor-1,2,2- trifluoroethane 50 79 129 30

1,1,2-Trichloroethane 50 80 120 20 1,1,2-Trichloroethane 50 77 120 30 1,1-Dichloroethane 50 76 120 20 1,1-Dichloroethane 50 78 124 30 1,1-Dichloroethene 50 76 120 20 1,1-Dichloroethene 50 80 124 30 1,1-Dichloropropene 50 75 120 20 1,1-Dichloropropene 50 77 122 30 1,2,3-Trichlorobenzene 50 76 120 20 1,2,3-Trichlorobenzene 50 74 126 30 1,2,3-Trichloropropane 50 76 120 20 1,2,3-Trichloropropane 50 72 123 30 1,2,3-Trimethylbenzene 50 80 120 20 1,2,3-Trimethylbenzene 50 80 120 30 1,2,4-Trichlorobenzene 50 80 120 20 1,2,4-Trichlorobenzene 50 75 127 30 1,2,4-Trimethylbenzene 50 75 120 20 1,2,4-Trimethylbenzene 50 80 121 30 1,2-Dibromo-3-chloropropane 50 75 124 20 1,2-Dibromo-3-chloropropane 50 68 131 30 1,2-Dibromoethane 50 80 120 20 1,2-Dibromoethane 50 80 120 30 1,2-Dichlorobenzene 50 80 120 20 1,2-Dichlorobenzene 50 78 120 30 1,2-Dichloroethane 50 78 120 20 1,2-Dichloroethane 50 75 121 30 1,2-Dichloropropane 50 80 120 20 1,2-Dichloropropane 50 79 121 30 1,3,5-Trimethylbenzene 50 80 120 20 1,3,5-Trimethylbenzene 50 80 123 30 1,3-Butadiene 50 71 127 20 1,3-Butadiene 50 75 127 30 1,3-Dichlorobenzene 50 80 120 20 1,3-Dichlorobenzene 50 79 120 30 1,3-Dichloropropane 50 80 120 20 1,3-Dichloropropane 50 78 120 30 1,4-Dichlorobenzene 50 80 120 20 1,4-Dichlorobenzene 50 78 120 30 1,4-Dioxane 1000 45 160 20 1,4-Dioxane 1000 61 137 30 1-Chlorohexane 50 73 120 20 1-Chlorohexane 50 80 125 30 1-Propanol 1000 54 151 20 1-Propanol 50 60 140 30 2,2-Dichloropropane 50 80 125 20 2,2-Dichloropropane 50 79 128 30 2-Butanone 100 70 130 20 2-Butanone 100 68 127 30 2-Chloro-1,3-butadiene 50 74 122 20 2-Chloro-1,3-butadiene 50 63 136 30 2-Chloroethyl vinyl ether 100 75 121 20 2-Chloroethyl vinyl ether 100 74 128 30 2-Chlorotoluene 50 80 120 20 2-Chlorotoluene 50 80 120 30 2-Hexanone 100 74 132 20 2-Hexanone 100 70 131 30 2-Methylnaphthalene 50 60 140 20 2-Methylnaphthalene 50 60 140 30 4-Chlorotoluene 50 80 120 20 4-Chlorotoluene 50 79 120 30 4-Isopropyltoluene 50 80 120 20 4-Isopropyltoluene 50 80 123 30 4-Methyl-2-pentanone 100 72 130 20 4-Methyl-2-pentanone 100 71 130 30 Acetaldehyde 200 60 130 20 Acetaldehyde 200 58 137 30 Acetone 100 65 138 20 Acetone 100 63 138 30 Acetonitrile 100 64 133 20 Acetonitrile 500 62 131 30

### HS-QA Plan-Rev08.0 -Appendix C Effective: 09/01/2009 Page G5 of 13

© 2009 ALS Laboratory Group - All Rights Reserved 

### Table G.9.1 - SW8260C LCS Recovery Limits - Houston Facility Analyte – Water Matrix SPK μg/L Low High RPD Analyte – Soil Matrix SPK μg/Kg Low High RPD

Acrolein 100 64 145 20 Acrolein 100 56 143 30 Acrylonitrile 100 70 130 20 Acrylonitrile 100 67 130 30 Allyl Chloride 50 50 149 20 Allyl Chloride 50 71 131 30 Benzene 50 80 120 20 Benzene 50 79 121 30 Benzyl Chloride 50 69 120 20 Benzyl Chloride 50 63 133 30 Bromobenzene 50 80 120 20 Bromobenzene 50 80 120 30 Bromochloromethane 50 80 120 20 Bromochloromethane 50 80 120 30 Bromodichloromethane 50 80 120 20 Bromodichloromethane 50 80 121 30 Bromoform 50 79 120 20 Bromoform 50 74 126 30 Bromomethane 50 70 133 20 Bromomethane 50 69 125 30 Butyl methcrylate 50 70 130 20 Butyl methacrylate 50 70 130 30 Carbon disulfide 100 77 123 20 Carbon disulfide 100 75 128 30 Carbon tetrachloride 50 76 122 20 Carbon tetrachloride 50 76 130 30 Chlorobenzene 50 80 120 20 Chlorobenzene 50 80 120 30 Chloroethane 50 69 129 20 Chloroethane 50 73 128 30 Chloroform 50 80 120 20 Chloroform 50 77 122 30 Chloromethane 50 67 125 20 Chloromethane 50 64 129 30 Cis-1,2-Dichloroethene 50 80 120 20 cis-1,2-Dichloroethene 50 78 122 30 Cis-1,3-Dichloropropene 50 80 120 20 cis-1,3-Dichloropropene 50 80 123 30 Cyclohexane 50 70 126 20 Cyclohexane 50 75 129 30 Dibromochloromethane 50 80 120 20 Dibromochloromethane 50 80 122 30 Dibromomethane 50 80 120 20 Dibromomethane 50 74 120 30 Dichlorodifluoromethane 50 62 123 20 Dichlorodifluoromethane 50 57 133 30 Diethyl Ether 50 75 129 20 Diethyl Ether 50 78 121 30 Diisopropyl ether 50 75 121 20 Diisopropyl ether 50 74 124 30 Epichlorohydrin 200 68 131 20 Epichlorohydrin 200 55 132 30 Ethyl acrylate 50 70 128 20 Ethyl acrylate 50 76 125 30 Ethyl methacrylate 50 78 123 20 Ethyl methacrylate 50 62 137 30 Ethylbenzene 50 80 120 20 Ethylbenzene 50 80 120 30 Hexachlorobutadiene 50 72 123 20 Hexachlorobutadiene 50 74 132 30 Iodomethane 100 70 126 20 Iodomethane 100 70 130 30 Isobutyl alcohol 1000 49 150 20 Isobutyl alcohol 1000 57 144 30 Isoprene 50 71 126 20 Isoprene 50 79 128 30 Isopropyl alcohol 1000 51 150 20 Isopropyl alcohol 1000 51 145 30 Isopropylbenzene 50 80 120 20 Isopropylbenzene 50 80 123 30 M,p-Xylene 100 80 120 20 m,p-Xylene 100 80 120 30 Methacrylonitrile 50 71 129 20 Methacrylonitrile 50 57 137 30 Methyl acetate 50 68 132 20 Me thyl acetate 50 64 129 30 Methyl methacrylate 50 75 124 20 Methyl methacrylate 50 73 123 30 Methyl tert-butyl ether 50 80 122 20 Methyl tert-butyl ether 50 75 124 30 Methylcyclohexane 50 75 122 20 Methylcyclohexane 50 76 129 30 Methylene chloride 50 78 120 20 Methylene chloride 50 68 127 30 n-Butyl acetate 50 57 150 20 n-Butyl acetate 50 59 142 30 n-Butyl acrylate 50 73 125 20 n-Butyl acrylate 50 69 130 30 n-Butylbenzene 50 77 120 20 n-Butylbenzene 50 78 128 30 n-Heptane 50 67 127 20 n-Heptane 50 76 122 30 n-Hexane 50 68 129 20 n-Hexane 50 76 132 30 n-Propylbenzene 50 80 120 20 n-Propylbenzene 50 79 124 30 Naphthalene 50 74 127 20 Naphthalene 50 71 132 30

### HS-QA Plan-Rev08.0 -Appendix C Effective: 09/01/2009 Page G6 of 13

© 2009 ALS Laboratory Group - All Rights Reserved 

### Table G.9.1 - SW8260C LCS Recovery Limits - Houston Facility Analyte – Water Matrix SPK μg/L Low High RPD Analyte – Soil Matrix SPK μg/Kg Low High RPD

o-Xylene 50 80 120 20 o-Xylene 50 80 121 30 Propylene oxide 100 60 131 20 Propylene oxide 100 56 142 30 Sec-Butylbenzene 50 79 120 20 sec-Butylbenzene 50 80 125 30 Styrene 50 80 120 20 Styrene 50 80 123 30 Tert-butyl alcohol 1000 57 146 20 Tert-butyl alcohol 1000 58 139 30 Tert-Butylbenzene 50 80 120 20 tert-Butylbenzene 50 80 122 30 Tetrachloroethene 50 80 120 20 Tetrachloroethene 50 80 123 30 Toluene 50 80 120 20 Toluene 50 79 120 30 Trans-1,2-Dichloroethene 50 80 122 20 Trans-1,2-Dichloroethene 50 78 124 30 Trans-1,3-Dichloropropene 50 80 120 20 Trans-1,3-Dichloropropene 50 80 122 30 Trans-1,4-Dichloro-2-butene 50 75 120 20 Trans-1,4-Dichloro-2-butene 50 64 130 30 Trichloroethene 50 80 120 20 Trichloroethene 50 80 120 30 Trichlorofluoromethane 50 70 129 20 Trichlorofluoromethane 50 77 132 30 Vinyl acetate 100 71 129 20 Vinyl acetate 100 61 140 30 Vinyl chloride 50 67 129 20 Vinyl chloride 50 71 129 30 Xylenes, Total 150 80 120 20 Xylenes, Total 150 80 120 30 1,2-Dichloroethane-d4 50 70 125 20 1,2-Dichloroethane-d4 50 70 128 30 4-Bromofluorobenzene 50 72 125 20 4-Bromofluorobenzene 50 73 126 30 Dibromofluoromethane 50 71 125 20 Dibromofluoromethane 50 71 128 30 Toluene-d8 50 75 125 20 Toluene-d8 50 73 127 30



### Table G.9.2 - SW8260C Low Level Water - LCS Recovery - Limits Houston Facility Analyte – Low Water Matrix SPK μg/L Low High RPD Analyte – Low Water Matrix SPK μg/L Low High RPD

1,1,1,2-Tetrachloroethane 10 80 120 20 Chlorobenzene 10 80 120 20 1,1,1-Trichloroethane 10 80 120 20 Chloroethane 10 80 120 20 1,1,2,2-Tetrachloroethane 10 74 123 20 Chloroform 10 80 120 20 1,1,2-Trichlor-1,2,2-trifluoroethane 10 76 120 20 Chloromethane 10 72 127 20 1,1,2-Trichloroethane 10 80 120 20 Cis-1,2-Dichloroethene 10 80 120 20 1,1-Dichloroethane 10 80 120 20 Cis-1,3-Dichloropropene 10 79 120 20 1,1-Dichloroethene 10 80 120 20 Cyclohexane 10 75 125 20 1,1-Dichloropropene 10 80 120 20 Dibromochloromethane 10 74 120 20 1,2,3-Trichlorobenzene 10 79 120 20 Dibromomethane 10 80 120 20 1,2,3-Trichloropropane 10 70 126 20 Dichlorodifluoromethane 10 72 125 20 1,2,3-Trimethylbenzene 10 80 120 20 Dicyclopentadiene 10 80 120 20 1,2,4-Trichlorobenzene 10 77 120 20 Ethyl acrylate 10 75 125 20 1,2,4-Trimethylbenzene 10 80 120 20 Ethylbenzene 10 80 120 20 1,2-Dibromo-3-chloropropane 10 68 120 20 Ethyl methacrylate 10 59 139 20 1,2-Dibromoethane 10 80 120 20 Hexachlorobutadiene 10 77 122 20 1,2-Dichlorobenzene 10 80 120 20 Iodomethane 20 58 130 20 1,2-Dichloroethene, Total 10 80 120 20 Isopropylbenzene 10 80 120 20 1,2-Dichloroethane 10 79 120 20 m,p-Xylene 20 80 123 20 1,2-Dichloropropane 10 80 120 20 Methacrylonitrile 10 75 126 20 1,3,5-Trimethylbenzene 10 80 12 0 20 Methyl acetate 10 76 122 20 1,3-Dichlorobenzene 10 80 120 20 Methyl methacrylate 10 73 139 20 1,3-Dichloropropane 10 80 120 20 Methyl tert-butyl ether 10 79 120 20 1,4-Dichlorobenzene 10 80 120 20 Methylcyclohexane 10 79 123 20 1,4-Dioxane 200 60 154 20 Methylene chloride 10 75 125 20 1-Chlorohexane 10 77 120 20 n-Butylbenzene 10 80 120 20

### HS-QA Plan-Rev08.0 -Appendix C Effective: 09/01/2009 Page G7 of 13

© 2009 ALS Laboratory Group - All Rights Reserved 

### Table G.9.2 - SW8260C Low Level Water - LCS Recovery - Limits Houston Facility Analyte – Low Water Matrix SPK μg/L Low High RPD Analyte – Low Water Matrix SPK μg/L Low High RPD

2,2-Dichloropropane 10 77 121 20 n-Hexane 10 75 125 20 2-Butanone 20 70 130 20 n-Propylbenzene 10 80 120 20 2-Chloroethyl vinyl ether 20 75 120 20 Naphthalene 10 74 125 20 2-Chlorotoluene 10 80 120 20 o-Xylene 10 80 120 20 2-Hexanone 20 66 131 20 Sec-Butylbenzene 10 80 120 20 4-Chlorotoluene 10 80 120 20 Styrene 10 78 122 20 4-Isopropyltoluene 10 80 120 20 Tert-Butylbenzene 10 80 120 20 4-Methyl-2-pentanone 20 67 132 20 Tetrachloroethene 10 80 120 20 Acetone 20 65 135 20 Toluene 10 80 121 20 Acetonitrile 20 70 135 20 Trans-1,2-Dichloroethene 10 80 120 20 Acrolein 20 70 130 20 Trans-1,3-Dichloropropene 10 76 120 20 Acrylonitrile 20 70 130 20 Trichloroethene 10 80 120 20 Benzene 10 80 120 20 Trichlorofluoromethane 10 79 120 20 Bromobenzene 10 80 120 20 Vinyl acetate 20 63 139 20 Bromochloromethane 10 80 120 20 Vinyl chloride 10 75 125 20 Bromodichloromethane 10 80 120 20 Xylenes, Total 30 80 124 20 Bromoform 10 70 120 20 1,2-Dichloroethane-d4 10 71 125 20 Bromomethane 10 63 139 20 4-Bromofluorobenzene 10 70 125 20 Butyl acrylate 10 68 130 20 Dibromofluoromethane 10 74 125 20 Carbon disulfide 20 80 120 20 Toluene-d8 10 78 123 20 Carbon tetrachloride 10 79 120 20



### Table G.9.3 - EPA 624 LCS Recovery Limits - Houston Facility Analyte – Water Matrix SPK μg/L Low High RPD Analyte - Water Matrix SPK μg/L Low High RPD

1,1,1-Trichloroethane 20 80 133 20 Chloroethane 20 78 125 20 1,1,2,2-Tetrachloroethane 20 73 133 20 Chloroform 20 79 127 20 1,1,2-Trichloroethane 20 80 132 20 Chloromethane 20 70 133 20 1,1-Dichloroethane 20 76 131 20 cis-1,2-Dichloroethene 20 74 129 20 1,1-Dichloroethene 20 77 124 20 cis-1,3-Dichloropropene 20 74 129 20 1,2-Dichlorobenzene 20 79 131 20 Dibromochloromethane 20 75 133 20 1,2-Dichloroethane 20 79 126 20 Ethylbenzene 20 75 137 20 1,2-Dichloropropane 20 77 132 20 m,p-Xylene 20 70 130 20 1,3-Dichlorobenzene 20 77 130 20 Methyl tert-butyl ether 20 70 130 20 1,4-Dichlorobenzene 20 74 125 20 Methylene chloride 20 80 126 20 2-Butanone 40 70 130 20 o-Xylene 20 70 130 20 2-Chloroethyl vinyl ether 40 57 120 20 Tetrachloroethene 20 80 132 20 Acetone 40 65 140 20 Toluene 20 77 134 20 Acrolein 40 60 120 20 Trans-1,2-Dichloroethene 20 80 130 20 Acrylonitrile 100 60 120 20 Trans-1,3-Dichloropropene 20 76 128 20 Benzene 20 75 134 20 Trichloroethene 20 80 132 20 Bromodichloromethane 20 80 131 20 Trichlorofluoromethane 20 80 120 20 Bromoform 20 65 135 20 Vinyl chloride 20 70 125 20 Bromomethane 20 65 135 20 1,2-Dichloroethane-d4 (Surr) 20 65 138 20 Carbon tetrachloride 20 78 129 20 4-BFB (Surr) 20 77 121 20 Chlorobenzene 20 80 126 20 Toluene-d8 (Surr) 20 80 123 20

### HS-QA Plan-Rev08.0 -Appendix C Effective: 09/01/2009 Page G8 of 13

© 2009 ALS Laboratory Group - All Rights Reserved Table G.10.1 - Method 8270D LCS Recovery Limits - Houston Facility Analyte - 8270 Water SPK μg/L Low High RPD Analyte - 8270 Soil SPK μg/Kg Low High RPD

1,1 ́-Biphenyl 50 50 120 20 1,1 ́-Biphenyl 1667 55 120 30 1,2,4,5-Tetrachlorobenzene 50 50 120 20 1,2,4,5-Tetrachlorobenzene 1667 55 120 30 1,2,4-Trichlorobenzene 50 50 120 20 1,2,4-Trichlorobenzene 1667 55 120 30 1,2-Dichlorobenzene 50 50 120 20 1,2-Dichlorobenzene 1667 55 120 30 1,2-Dinitrobenzene 50 50 120 20 1,2-Dinitrobenzene 1667 40 130 30 1,2-Diphenylhydrazine 50 55 120 20 1,2-Diphenylhydrazine 1667 55 120 30 1,3-Dichlorobenzene 50 50 120 20 1,3-Dichlorobenzene 1667 55 120 30 1,3-Dinitrobenzene 50 55 120 22 1,3-Dinitrobenzene 1667 55 120 30 1,4-Dichlorobenzene 50 55 120 20 1,4-Dichlorobenzene 1667 55 120 30 1,4-Dinitrobenzene 50 55 120 20 1,4-Dinitrobenzene 1667 40 130 30 1,4-Dioxane 50 10 120 20 1,4-Dioxane 1667 15 120 30 1,4-Naphthoquinone 50 55 120 20 1,4-Naphthoquinone 1667 55 120 30 1-Chloronaphthalene 50 40 130 20 1-Chloronaphthalene 1667 50 125 30 1-Methylnaphthalene 50 55 120 20 1-Methylnaphthalene 1667 55 120 30 2,3,4,6-Tetrachlorophenol 50 55 120 20 2,3,4,6-Tetrach lorophenol 1667 55 120 30 2,4,5-Trichlorophenol 100 50 120 20 2,4,5-Trichlorophenol 3333 55 120 30 2,4,6-Trichlorophenol 100 50 120 20 2,4,6-Trichlorophenol 3333 55 120 30 2,4-Dichlorophenol 100 50 120 20 2,4-Dichlorophenol 3333 55 120 30 2,4-Dimethylphenol 100 50 120 20 2,4-Dimethylphenol 3333 55 125 30 2,4-Dinitrophenol 100 40 120 20 2,4-Dinitrophenol 3333 40 125 30 2,4-Dinitrotoluene 50 50 120 20 2,4-Dinitrotoluene 1667 55 125 30 2,6-Dichlorophenol 100 50 120 20 2,6-Dichlorophenol 1667 55 120 30 2,6-Dimethylphenol 50 50 120 20 2,6-Dimethylphenol 1667 55 120 30 2,6-Dinitrotoluene 50 55 120 20 2,6-Dinitrotoluene 1667 55 120 30 2-Chloronaphthalene 50 55 135 20 2-Chloronaphthalene 1667 55 145 30 2-Chlorophenol 100 50 120 20 2-Chlorophenol 3333 55 120 30 2-Chloroquinoxaline 50 55 120 20 2-Chloroquinoxaline 1667 55 120 30 2-Methylnaphthalene 50 55 120 20 2-Methylnaphthalene 1667 55 120 30 2-Methylphenol 100 50 120 20 2-Methylphenol 3333 55 120 30 2-Nitroaniline 50 55 120 20 2-Nitroaniline 1667 55 130 30 2-Nitrophenol 100 55 120 20 2-Nitrophenol 3333 55 120 30 3&4-Methylphenol 150 55 120 20 3&4-Methylphenol 5000 55 120 30 3,3 ́-Dichlorobenzidine 50 30 120 20 3,3 ́-Dichlorobenzidine 1667 32 125 30 3-Methylcholanthrene 50 50 120 20 3-Methylcholanthrene 1667 55 125 30 3-Nitroaniline 50 40 120 20 3-Nitroaniline 1667 43 120 30 4,6-Dinitro-2-methylphenol 100 50 120 20 4,6-Dinitro-2-methylphenol 3333 50 130 30 4-Bromophenyl phenyl ether 50 55 120 20 4-Bromophenyl phenyl ether 1667 55 120 30 4-Bromopyrazole 100 40 120 20 4-Bromopyrazole 3333 50 125 30 4-Chloro-3-methylphenol 100 50 120 20 4-Chloro-3-methylphenol 3333 55 120 30 4-Chloroaniline 50 30 120 20 4-Chloroaniline 1667 30 120 30 4-Chlorophenyl phenyl ether 50 55 120 20 4-Chlorophenyl phenyl ether 1667 55 120 30 4-Nitroaniline 50 50 120 20 4-Nitroaniline 1667 55 120 30 4-Nitrophenol 100 45 120 20 4-Nitrophenol 3333 50 130 30 4-Nitroquinoline-1-oxide 50 50 130 20 4-Nitroquinoline-1-oxide 1667 50 150 30 7,12-Dimethylbenz(a)anthracene 50 45 120 20 7,12-Dimethylbenz(a)anthracene 1667 55 120 30 Acenaphthene 50 55 120 20 Acenaphthene 1667 55 120 30 Acenaphthylene 50 55 120 20 Acenaphthylene 1667 55 120 30 Acetophenone 50 40 120 20 Acetophenone 1667 54 120 30 Aniline 50 30 120 20 Aniline 1667 25 120 30

### HS-QA Plan-Rev08.0 -Appendix C Effective: 09/01/2009 Page G9 of 13

© 2009 ALS Laboratory Group - All Rights Reserved Table G.10.1 - Method 8270D LCS Recovery Limits - Houston Facility Analyte - 8270 Water SPK μg/L Low High RPD Analyte - 8270 Soil SPK μg/Kg Low High RPD

Anthracene 50 55 120 20 Anthracene 1667 55 120 30 Aramite 50 50 120 20 Aramite 1667 55 142 30 Atrazine 50 50 120 20 Atrazine 1667 55 127 30 Azobenzene 50 50 130 20 Azobenzene 1667 55 120 30 Benz(a)anthracene 50 55 120 20 Benz(a)anthracene 1667 55 125 30 Benzaldehyde 50 45 120 20 Benzaldehyde 1667 20 132 30 Benzidine 50 10 120 20 Benzidine 1667 10 120 30 Benzo(a)pyrene 50 55 120 20 Benzo(a)pyrene 1667 55 120 30 Benzo(b)fluoranthene 50 55 120 20 Benzo(b)fluoranthene 1667 55 125 30 Benzo(g,h,i)perylene 50 55 120 20 Benzo(g,h,i)perylene 1667 55 120 30 Benzo(k)fluoranthene 50 55 120 20 Benzo(k)fluoranthene 1667 55 130 30 Benzoic acid 50 20 120 20 Benzoic acid 1667 15 130 30 Benzyl alcohol 50 50 120 20 Benzyl alcohol 1667 55 120 30 Bis(2-chloroethoxy) methane 50 55 120 20 Bis(2-chloroethoxy) methane 1667 55 120 30 Bis(2-chloroethyl)ether 50 50 120 20 Bis(2-chloroethyl)ether 1667 55 120 30 Bis(2-chloroisopropyl)ether 50 50 120 20 Bis(2-chloroisopropyl)ether 1667 55 120 30 Bis(2-ethylhexyl)phthalate 50 50 120 20 Bis(2-ethylhexyl)phthalate 1667 55 125 30 Butyl benzyl phthalate 50 50 120 20 Butyl benzyl phthalate 1667 55 125 30 Caprolactam 50 30 120 20 Caprolactam 1667 55 140 30 Carbazole 50 55 120 20 Carbazole 1667 55 120 30 Chlorobenzilate 50 55 120 20 Chlorobenzilate 1667 55 120 30 Chlorothalonil 50 55 120 20 Chlorothalonil 1667 55 140 30 Chrysene 50 55 120 20 Chrysene 1667 55 125 30 Dacthal 50 55 120 20 Dacthal 1667 55 125 30 Di-n-butyl phthalate 50 55 120 20 Di-n-butyl phthalate 1667 55 125 30 Di-n-octyl phthalate 50 50 120 20 Di-n-octyl phthalate 1667 55 130 30 Diallate 50 55 120 20 Diallate 1667 50 140 30 Dibenz(a,h)anthracene 50 55 120 20 Dibenz(a,h)anthracene 1667 55 120 30 Dibenz(a,j)acridine 50 55 120 20 Dibenz(a,j)acridine 1667 40 130 30 Dibenzofuran 50 55 120 20 Dibenzofuran 1667 55 120 30 Diethyl phthalate 50 55 120 20 Diethyl phthalate 1667 55 120 30 Dimethyl phthalate 50 55 120 20 Dimethyl phthalate 1667 55 120 30 Diphenyl ether 50 55 120 20 Diphenyl ether 1667 55 120 30 Diphenylamine 50 55 120 20 Diphenylamine 1667 55 120 30 Ethyl methacrylate 50 45 120 20 Ethyl methacrylate 1667 35 120 30 Ethyl methanesulfonate 50 50 120 20 Ethyl methanesulfonate 1667 55 120 30 Fluoranthene 50 55 120 20 Fluoranthene 1667 55 125 30 Fluorene 50 55 120 20 Fluorene 1667 55 120 30 Hexachlorobenzene 50 55 120 20 Hexachlorobenzene 1667 55 120 30 Hexachlorobutadiene 50 55 120 20 Hexachlorobutadiene 1667 55 120 30 Hexachlorocyclopentadiene 50 50 120 20 Hexachlorocyclopentadiene 1667 50 120 30 Hexachloroethane 50 55 120 20 Hexachloroethane 1667 55 120 30 Hexachloropropene 50 55 120 20 Hexachloropropene 1337 55 120 30 Indeno(1,2,3-cd)pyrene 50 55 120 20 Indeno(1,2,3-cd)pyrene 1667 55 125 30 Isodrin 50 55 120 20 Isodrin 1667 55 120 30 Isophorone 50 55 120 20 Isophorone 1667 55 120 30 Isophthalonitrile 50 55 120 20 Isophthalonitrile 1667 50 120 30 Isosafrole 50 55 120 20 Isosafrole 1667 45 140 30 Kepone 50 15 140 20 Kepone 1667 20 120 30

### HS-QA Plan-Rev08.0 -Appendix C Effective: 09/01/2009 Page G10 of 13

© 2009 ALS Laboratory Group - All Rights Reserved Table G.10.1 - Method 8270D LCS Recovery Limits - Houston Facility Analyte - 8270 Water SPK μg/L Low High RPD Analyte - 8270 Soil SPK μg/Kg Low High RPD

Methapyrilene 50 40 130 20 Methapyrilene 1667 40 130 30 Methyl methanesulfonate 50 50 120 20 Methyl methanesulfonate 1667 55 120 30 N-Nitrosodiethylamine 50 40 130 20 N-Nitrosodiethylamine 1667 40 130 30 N-Nitroso-di-n-butylamine 50 40 130 20 N-Nitroso-di-n-butylamine 1667 40 130 30 N-Nitrosodi-n-propylamine 50 50 120 20 N-Nitrosodi-n-propylamine 1667 55 120 30 N-Nitrosodimethylamine 50 45 120 20 N-Nitrosodimethylamine 1667 45 120 30 N-Nitrosomethylethylamine 50 40 130 20 N-Nitrosomethylethylamine 1667 40 130 30 N-Nitrosodiphenylamine 50 55 120 20 N-Nitrosodiphenylamine 1667 55 120 30 N-Nitrosomorpholine 50 40 130 20 N-Nitrosomorpholine 1667 40 130 30 N-Nitrosopiperidine 50 40 130 20 N-Nitrosopiperidine 1667 40 130 30 N-Nitrosopyrrolidine 50 40 130 20 N-Nitrosopyrrolidine 1667 40 130 30 Naphthalene 50 55 120 20 Naphthalene 1667 55 120 30 Nitrobenzene 50 55 120 20 Nitrobenzene 1667 55 120 30 Pentachlorobenzene 50 55 120 20 Pentachlorobenzene 1667 55 120 30 Pentachloroethane 50 50 120 20 Pentachloroethane 1667 55 120 30 Pentachloronitrobenzene 50 50 120 20 Pentachloronitrobenzene 1667 55 140 30 Pentachlorophenol 100 55 120 20 Pentachlorophenol 3333 50 135 30 Phenacetin 50 55 120 20 Phenacetin 1667 55 125 30 Phenanthrene 50 55 120 20 Phenanthrene 1667 55 120 30 Phenol 100 50 120 20 Phenol 3333 50 120 30 Pronamide 50 55 120 20 Pronamide 1667 55 122 30 Pyrazole 100 35 120 20 Pyrazole 1667 40 125 30 Pyrene 50 55 120 20 Pyrene 1667 55 125 30 Pyridine 50 35 120 20 Pyridine 1667 30 120 30 Quinazoline 50 55 120 20 Quinazoline 1667 55 135 30 Quinoline 50 55 120 20 Quinoline 1667 55 130 30 Safrole 50 55 120 20 Safrole 1667 55 120 30 Sym-Trinitrobenzene 58 55 120 20 Sym-Trinitrobenzene 1667 60 160 30 2,4,6-Tribromophenol 100 42 124 20 2,4,6-Tribromophenol 3333 36 126 30 2-Fluorobiphenyl 100 48 120 20 2-Fluorobiphenyl 3333 43 125 30 2-Fluorophenol 100 20 120 20 2-Fluorophenol 3333 37 125 30 4-Terphenyl-d14 100 51 135 20 4-Terphenyl-d14 3333 32 125 30 Nitrobenzene-d5 100 41 120 20 Nitrobenzene-d5 3333 37 125 30 Phenol-d6 100 20 120 20 Phenol-d6 3333 40 125 30



### Table G.10.2 - Method 8270D Low Level LCS Recovery Limits – Houston Facility Analyte - 8270 Water SPK μg/L Low High RPD Analyte - 8270 Soil SPK μg/Kg Low High RPD

1,1 ́-Biphenyl 5 45 125 20 1,1 ́-Biphenyl 166.7 50 120 30 1,2,4-Trichlorobenzene 5 45 120 20 1,2,4-Trichlorobenzene 166.7 50 120 30 1,2-Dichlorobenzene 5 45 120 20 1,2-Dichlorobenzene 166.7 50 120 30 1,2-Diphenylhydrazine 5 39 127 20 1,2-Diphenylhydrazine 166.7 50 135 30 1,3-Dichlorobenzene 5 45 120 20 1,3-Dichlorobenzene 166.7 50 120 30 1,4-Dichlorobenzene 5 40 120 20 1,4-Dichlorobenzene 166.7 50 120 30 1-Methylnaphthalene 5 45 120 20 1-Methylnaphthalene 166.7 50 120 30 2,4,5-Trichlorophenol 5 46 120 20 2,4,5-Trichlorophenol 166.7 45 127 30 2,4,6-Trichlorophenol 5 42 120 20 2,4,6-Trichlorophenol 166.7 45 130 30 2,4-Dichlorophenol 5 49 120 20 2,4-Dichlorophenol 166.7 45 125 30 2,4-Dimethylphenol 5 35 120 20 2,4-Dimethylphenol 166.7 45 120 30

### HS-QA Plan-Rev08.0 -Appendix C Effective: 09/01/2009 Page G11 of 13

© 2009 ALS Laboratory Group - All Rights Reserved 

### Table G.10.2 - Method 8270D Low Level LCS Recovery Limits – Houston Facility Analyte - 8270 Water SPK μg/L Low High RPD Analyte - 8270 Soil SPK μg/Kg Low High RPD

2,4-Dinitrophenol 5 15 120 20 2, 4-Dinitrophenol 166.7 10 126 30 2,4-Dinitrotoluene 5 50 122 20 2,4-Dinitrotoluene 166.7 50 130 30 2,6-Dinitrotoluene 5 50 120 20 2,6-Dinitrotoluene 166.7 50 125 30 2-Chloronaphthalene 5 50 120 20 2-Chloronaphthalene 166.7 50 145 30 2-Chlorophenol 5 50 120 20 2-Chlorophenol 166.7 45 120 30 2-Methylnaphthalene 5 50 120 20 2-Methylnaphthalene 166.7 50 120 30 2-Methylphenol 5 45 120 20 2-Methylphenol 166.7 45 120 30 2-Nitroaniline 5 28 139 20 2-Nitroaniline 166.7 45 138 30 2-Nitrophenol 5 40 120 20 2-Nitrophenol 166.7 45 125 30 3&4-Methylphenol 5 35 120 20 3&4-Methylphenol 166.7 45 120 30 3,3 ́-Dichlorobenzidine 5 15 120 20 3,3 ́-Dichlorobenzidine 166.7 15 120 30 3-Nitroaniline 5 30 120 20 3-Nitroaniline 166.7 40 120 30 4,6-Dinitro-2-methylphenol 5 25 121 20 4,6-Dinitro-2-methylphenol 166.7 15 135 30 4-Bromophenyl phenyl ether 5 45 120 20 4-Bromophenyl phenyl ether 166.7 50 125 30 4-Chloro-3-methylphenol 5 47 120 20 4-Chloro-3-methylphenol 166.7 45 130 30 4-Chloroaniline 5 20 120 20 4-Chloroaniline 166.7 20 120 30 4-Chlorophenyl phenyl ether 5 50 120 20 4-Chlorophenyl phenyl ether 166.7 50 120 30 4-Nitroaniline 5 30 133 20 4-Nitroaniline 166.7 50 127 30 4-Nitrophenol 5 30 130 20 4-Nitrophenol 166.7 40 147 30 Acenaphthene 5 45 120 20 Acenaphthene 166.7 50 120 30 Acenaphthylene 5 47 120 20 Acenaphthylene 166.7 50 120 30 Acetophenone 5 40 120 20 Acetophenone 166.7 50 120 30 Aniline 5 10 120 20 Aniline 166.7 10 135 30 Anthracene 5 45 120 20 Anthracene 166.7 50 123 30 Atrazine 5 40 130 20 Atrazine 166.7 29 148 30 Benz(a)anthracene 5 40 120 20 Benz(a)anthracene 166.7 50 131 30 Benzaldehyde 5 35 130 20 Benzaldehyde 166.7 45 120 30 Benzidine 5 10 120 20 Benzidine 166.7 10 120 30 Benzo(a)pyrene 5 45 120 20 Benzo(a)pyrene 166.7 50 130 30 Benzo(b)fluoranthene 5 50 120 20 Benzo(b)fluoranthene 166.7 50 137 30 Benzo(g,h,i)perylene 5 42 127 20 Benzo(g,h,i)perylene 166.7 50 130 30 Benzo(k)fluoranthene 5 45 127 20 Benzo(k)fluoranthene 166.7 50 143 30 Benzoic acid 5 10 110 20 Benzoic acid 166.7 10 120 30 Benzyl alcohol 5 35 122 20 Be nzyl alcohol 166.7 40 143 30 Bis(2-chloroethoxy) methane 5 45 120 20 Bis(2-chloroethoxy) methane 166.7 50 120 30 Bis(2-chloroethyl)ether 5 37 121 20 Bis(2-chloroethyl)ether 166.7 45 127 30 Bis(2-chloroisopropyl)ether 5 40 120 20 Bis(2-chloroisopropyl)ether 166.7 50 120 30 Bis(2-ethylhexyl)phthalate 5 40 139 20 Bis(2-ethylhexyl)phthalate 166.7 21 148 30 Butyl benzyl phthalate 5 47 123 20 Butyl benzyl phthalate 166.7 50 136 30 Caprolactam 5 35 134 20 Caprolactam 166.7 50 135 30 Carbazole 5 42 128 20 Carbazole 166.7 50 143 30 Chrysene 5 43 120 20 Chrysene 166.7 50 130 30 Di-n-butyl phthalate 5 45 123 20 Di-n-butyl phthalate 166.7 50 140 30 Di-n-octyl phthalate 5 45 129 20 Di-n-octyl phthalate 166.7 50 140 30 Dibenz(a,h)anthracene 5 45 120 20 Dibenz(a,h)anthracene 166.7 50 130 30 Dibenzofuran 5 50 120 20 Dibenzofuran 166.7 50 125 30 Diethyl phthalate 5 41 120 20 Diethyl phthalate 166.7 50 125 30 Dimethyl phthalate 5 40 122 20 Dimethyl phthalate 166.7 50 125 30 Diphenylamine 5 45 120 20 Diphenylamine 166.7 45 132 30

### HS-QA Plan-Rev08.0 -Appendix C Effective: 09/01/2009 Page G12 of 13

© 2009 ALS Laboratory Group - All Rights Reserved 

### Table G.10.2 - Method 8270D Low Level LCS Recovery Limits – Houston Facility Analyte - 8270 Water SPK μg/L Low High RPD Analyte - 8270 Soil SPK μg/Kg Low High RPD

Fluoranthene 5 45 125 20 Fluoranthene 166.7 50 131 30 Fluorene 5 49 120 20 Fluorene 166.7 50 125 30 Hexachlorobenzene 5 48 120 20 Hexachlorobenzene 166.7 50 124 30 Hexachlorobutadiene 5 40 120 20 Hexachlorobutadiene 166.7 50 125 30 Hexachlorocyclopentadiene 5 34 136 20 Hexachlorocyclopentadiene 166.7 45 135 30 Hexachloroethane 5 40 120 20 Hexachloroethane 166.7 45 125 30 Indeno(1,2,3-cd)pyrene 5 41 128 20 Indeno(1,2,3-cd)pyrene 166.7 45 139 30 Isophorone 5 40 121 20 Is ophorone 166.7 45 130 30 N-Nitrosodi-n-propylamine 5 30 140 20 N-Nitrosodi-n-propylamine 166.7 45 120 30 N-Nitrosodimethylamine 5 40 120 20 N-Nitrosodimethylamine 166.7 20 140 30 N-Nitrosodiphenylamine 5 40 125 20 N-Nitrosodiphenylamine 166.7 50 130 30 Naphthalene 5 45 120 20 Naphthalene 166.7 50 125 30 Nitrobenzene 5 44 120 20 Nitrobenzene 166.7 50 125 30 Pentachlorophenol 5 19 121 20 Pentachlorophenol 166.7 23 136 30 Phenanthrene 5 45 121 20 Phenanthrene 166.7 50 125 30 Phenol 5 20 124 20 Phenol 166.7 45 130 30 Pyrene 5 40 130 20 Pyrene 166.7 45 130 30 Pyridine 5 15 130 20 Pyridine 166.7 15 120 30 Quinoline 5 45 120 20 Quinoline 166.7 45 130 30 2,4,6-Tribromophenol 5 34 129 20 2,4,6-Tribromophenol 166.7 36 126 30 2-Fluorobiphenyl 5 40 125 20 2-Fluorobiphenyl 166.7 43 125 30 2-Fluorophenol 5 20 120 20 2-Fluorophenol 166.7 37 125 30 4-Terphenyl-d14 5 40 135 20 4-Terphenyl-d14 166.7 32 125 30 Nitrobenzene-d5 5 41 120 20 Nitrobenzene-d5 166.7 37 125 30 Phenol-d6 5 20 120 20 Phenol-d6 166.7 40 125 30



### Table G.11 - Method 625 LCS Recovery Limits, Houston Facility Analyte - 625 Water SPK μg/L Low High RPD Analyte - 625 Water SPK μg/L Low High RPD

1,2,4-Trichlorobenzene 100 54 120 20 Benzyl alcohol 100 49 120 20 1,2-Dichlorobenzene 100 49 120 20 Bis(2-chloroethoxy) methane 100 54 120 20 1,2-Diphenylhydrazine 100 55 134 20 Bis(2-chloroethyl)ether 100 55 120 20 1,3-Dichlorobenzene 100 55 120 20 Bis(2-chloroisopropyl)ether 100 48 120 20 1,4-Dichlorobenzene 100 55 120 20 Bis(2-ethylhexyl)phthalate 100 50 120 20 2,4,5-Trichlorophenol 100 52 120 20 Butyl benzyl phthalate 100 51 120 20 2,4,6-Trichlorophenol 100 55 120 20 Carbazole 100 55 120 20 2,4-Dichlorophenol 100 53 120 20 Chrysene 100 52 120 20 2,4-Dimethylphenol 100 53 120 20 Di-n-butyl phthalate 100 54 120 20 2,4-Dinitrophenol 100 47 120 20 Di-n-octyl phthalate 100 49 120 20 2,4-Dinitrotoluene 100 55 120 20 Dibenz(a,h)anthracene 100 55 120 20 2,6-Dinitrotoluene 100 55 120 20 Dibenzofuran 100 55 120 20 2-Chloronaphthalene 100 55 125 20 Diethyl phthalate 100 55 120 20 2-Chlorophenol 100 54 120 20 Dimethyl phthalate 100 55 120 20 2-Methylnaphthalene 100 46 120 20 Diphenylamine 100 52 120 20 2-Methylphenol 100 53 120 20 Fluoranthene 100 55 120 20 2-Nitroaniline 100 53 123 20 Fluorene 100 55 120 20 2-Nitrophenol 100 53 120 20 Hexachlorobenzene 100 54 120 20 3&4-Methylphenol 100 48 120 20 Hexachlorobutadiene 100 51 120 20 3,3 ́-Dichlorobenzidine 100 25 120 20 Hexachlorocyclopentadiene 100 48 120 20

### HS-QA Plan-Rev08.0 -Appendix C Effective: 09/01/2009 Page G13 of 13

© 2009 ALS Laboratory Group - All Rights Reserved 

### Table G.11 - Method 625 LCS Recovery Limits, Houston Facility Analyte - 625 Water SPK μg/L Low High RPD Analyte - 625 Water SPK μg/L Low High RPD

3-Nitroaniline 100 26 120 20 Hexachloroethane 100 54 120 20 4,6-Dinitro-2-methylphenol 100 51 121 20 Indeno(1,2,3-cd)pyrene 100 51 120 20 4-Bromophenyl phenyl ether 100 49 120 20 Isophorone 100 55 120 20 4-Chloro-3-methylphenol 100 51 120 20 N-Nitrosodi-n-propylamine 100 55 120 20 4-Chloroaniline 100 21 120 20 N-Nitrosodimethylamine 100 42 120 20 4-Chlorophenyl phenyl ether 100 56 120 20 N-Nitrosodiphenylamine 100 52 120 20 4-Nitroaniline 100 47 120 20 Naphthalene 100 55 120 20 4-Nitrophenol 100 26 133 20 Nitrobenzene 100 40 124 20 Acenaphthene 100 55 120 20 Pentachlorophenol 100 45 125 20 Acenaphthylene 100 55 120 20 Phenanthrene 100 55 120 20 Anthracene 100 55 120 20 Phenol 100 38 120 20 Benz(a)anthracene 100 53 120 20 Pyrene 50 54 120 20 Benzidine 100 10 120 20 2,4,6-Tribromophenol 100 42 124 20 Benzo(a)pyrene 100 55 120 20 2-Fluorobiphenyl 100 48 120 20 Benzo(b)fluoranthene 100 54 120 20 2-Fluorophenol 100 20 120 20 Benzo(g,h,i)perylene 100 55 120 20 4-Terphenyl-d14 100 51 135 20 Benzo(k)fluoranthene 100 50 120 20 Nitrobenzene-d5 100 41 120 20 Benzoic acid 100 24 131 20 Phenol-d6 100 20 120 20

Table G.12 - SW 8330B LCS Recovery Limits – Houston Facility Analyte – Water Matrix SPK μg/L Low High RPD Analyte – Soil Matrix SPK μg/Kg Low High RPD

HMX 3.25 60 120 20 HMX 2500 60 125 30
RDX 3.25 50 120 20 RDX 2500 60 130 30 1,3,5-Trinitrobenzene 3.25 60 125 20 1,3,5-Trinitrobenzene 2500 60 125 30 1,3-Dinitrobenzene 3.25 55 120 20 1,3-Dinitrobenzene 2500 60 125 30 Tetryl 3.25 45 140 20 Tetryl 2500 45 140 30
Nitrobenzene 3.25 55 120 20 Nitrobenzene 2500 60 120 30 2,4,6-Trinitrotoluene 3.25 60 130 20 2,4,6-Trinitrotoluene 2500 60 130 30 4-Amino-2,6-dinitrotoluene 3.25 55 120 20 4-Amino-2,6-dinitrotoluene 2500 60 125 30 2-Amino-4, 6-dinitrotoluene 3.25 55 120 20 2-Amino-4, 6-dinitrotoluene 2500 60 125 30 2,4-Dinitrotoluene 3.25 60 120 20 2,4-Dinitrotoluene 2500 60 125 30 2,6-Dinitrotoluene 3.25 60 125 20 2,6-Dinitrotoluene 2500 60 120 30
2-Nitrotoluene 3.25 55 125 20 2-Nitrotoluene 2500 60 125 30
3-Nitrotoluene 3.25 55 120 20 3-Nitrotoluene 2500 60 120 30
4-Nitrotoluene 3.25 55 120 20 4-Nitrotoluene 2500 60 125 30 1,2-DNB (Surr) 3.25 55 140 20 1,2-DNB (Surr) 2500 50 150 30

Table G.13.1 - SW 8315A LCS Recovery Limits - Houston Facility 

### Analyte – Water Matrix SPK μg/L 

### Low High RPD 

### Analyte – Soil Matrix SPK μg/Kg 

### Low High RPD

Formaldehyde 50 60 120 20 Formaldehyde 1000 70 130 30

Table G.13.2 - SW 8316 LCS Recovery Limits – Houston Facility 

### Analyte – Water Matrix SPK μg/L 

### Low High RPD 

### Analyte – Soil Matrix SPK μg/Kg 

### Low High RPD

Acrylamide 25 60 120 20 Acrylamide 25 60 120 30

### HS-QA Plan-Rev08.0 -Appendix C Effective: 09/01/2009 Page G14 of 13

© 2009 ALS Laboratory Group - All Rights Reserved 

### T ABLE 

### G. 14

- N UMBER OF 

### A LLOWABLE 

### S PORADIC 

### M ARGINAL 

### E XCEEDANCES 

### Number of analytes Sporadic Marginal Exceedances Allowed 0-11 0 11-30 1 31-50 2 51-70 3 71-90 4 >90 5G:\2010\0102974\15096H Delisting Petition.doc



# ALS Laboratory Group Company Profile

Attachment 3

August 12, 2010 Project No. 0102974

Environmental Resources Management Southwest, Inc.

15810 Park Ten Place, Suite 300 Houston, Texas 77084-5140 (281) 600-1000

# Corporate Profile

ALS is a diversified international analytical laboratory group which first established its operations in Queensland, Australia in 1975. With 160 locations and in excess of 6,000 staff operating in 40 countries through

out Australia, North America, South America, Africa, Europe and Asia, the company is now one of the largest analytical laboratory groups in the world.

ALS provides a broad range of sophisticated, state of the art services to four main market segments; mining and mineral exploration, environmen

tal monitoring, equipment maintenance through used lubricant analysis, and commodity analysis & certification.

With a long term commitment to:

• Quality

• Service

• Innovation

• ALS has remained at the forefront of analytical chemistry and built an enviable reputation in its target markets.

ALS embraces a consistent global approach to:

• Quality Assurance

• Human Resources

• Occupational Health and Safety

• Environmental Best Practices

• All ALS laboratories operate in compliance with ISO17025, with dedi

cated Quality Control Chemists in each major laboratory, a dedicated Quality Control Group in each region of the world, and a Global Technical Manager for each service area in which the company operates. As a professional services organisation, ALS is committed to the ongoing professional development of all staff through peer interaction as well as in-house and external training Programs. ALS operates a proactive global OHS&E program that ensures consistent compliance that is in excess of local regulatory requirements, throughout the world.

ALS is a wholly owned subsidiary of Campbell Brothers Ltd, an Australian based public company that began operations in 1863.


# www.alsglobal.com

# www.alsglobal.com Environmental Division Overview

ALS Laboratory Group’s (ALS) Environmental Division is one of the largest, most geographically diverse environmental testing companies in the world. Currently we have over 40 laboratories strategically located throughout Asia, Australia, Europe, North America and South America to provide our clients with analytical and technical support for local and international projects.

ALS’s Environmental Division provides reliable analytical testing data to assist consulting and engineering firms, industry, and governments around the world in making informed decisions about their environmental projects. Our comprehensive range of environmental testing and technical support services is complemented by a solid commitment to quality and customer service.

Benefits of Using ALS

The depth of technical and management expertise at ALS allows us to deliver a consistently high level of service to our clients. Our commitment to good science and personal service is backed by a sound quality program. Each laboratory within the ALS network has evolved to meet the needs of local clien

tele, and is involved in accreditation or other recognition programs pertinent to its own specialized testing services. Accreditations are held for specific tests as related on each lab’s Scope of Accredita

tion. To obtain copies of any of our Scopes of Accreditation follow the location links on this website, refer to the websites of our accrediting bodies, or contact your ALS client service representative.

Additional benefits include:

• Rapid turnaround times to keep projects on schedule

• Project mobilization assistance to ensure we provide the information you require

• Extensive technical resources to help solve your environmental problems

• Assistance with data interpretation to help you draw informed conclusions

• Extensive experience with a wide range of clients and environmental programs

• Direct electronic data transfer of analytical results to your database

• Ease of communication with all personnel, including senior management, for rapid issue resolution


# www.alsenviro.com