Sol_140G0224Q0026.pdf

140G0224Q0026

1. REQUEST NO.

5a. ISSUED BY

NAME

a. NAME

c. STREET ADDRESS

d. CITY

10. PLEASE FURNISH QUOTATIONS TO

THE ISSUING OFFICE IN BLOCK 5a ON

OR BEFORE CLOSE OF BUSINESS (Date)

2. DATE ISSUED 3. REQUISITION/PURCHASE REQUEST NO. 4. CERT. FOR NAT. DEF.

UNDER BDSA REG. 2

AND/OR DMS REG.1

RATING

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PAGE OF PAGES

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8. TO:

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IMPORTANT: This is a request for information, and quotations furnished are not offers. If you are unable to quote, please so indicate on this form and return it to the address in Block 5a. This request does not commit the Government to pay any costs incurred in the preparation of the submission of this quotation or to contract for supplies or services. Supplies are of domestic origin unless otherwise indicated by quoter. Any representations and/or certifications attached to this Request for Quotations must be completed by the quoter.

11. SCHEDULE (Include applicable Federal, State and local taxes)

THIS RFQ

REQUEST FOR QUOTATION

(THIS IS NOT AN ORDER)

IS IS NOT A SMALL BUSINESS SET ASIDEX

01/11/2024 0040619459

1 75

PO BOX 25046

204 DENVER FEDERAL CENTER

DENVER CO 80225-0046

USGS OAG DENVER ACQUISITION BRANCH

USGS National Water Quality Lab

DFC Bldg 95 E3

Denver

CO 80225

573 397-2277Mary Wilson

02/12/2024 1700 ES

FOB DESTINATION

OTHER

(See Schedule)X

ITEM NO.

(a)

SUPPLIES/SERVICES

(b)

QUANTITY

(c)

UNIT

(d)

UNIT PRICE

(e)

AMOUNT

(f)

1) This Synopsis/Solicitation Notice is to announce the U.S. Department of Interior (DOI), U.S. Geological Survey has a requirement for a CHEMICAL AND BLANK WATER Requirements Contract per the attached solicitation.

2) The synopsis/solicitation is 140G0224Q0026 and is being issued as a Request for Quote (RFQ).

3) The award for this requirement shall be made using the policies in the Federal Acquisition Regulations (FAR) Part 12, Acquisition of Commerical Items, and in conjunction with the policies and procedures for solicitation, evaluation, and award prescribed in FAR 13.5 Simplified Procedures for Certain Commerical Continued ...

12. DISCOUNT FOR PROMPT PAYMENT

a. 10 CALENDAR DAYS (%) b. 20 CALENDAR DAYS (%) c. 30 CALENDAR DAYS (%) d. CALENDAR DAYS

NUMBER PERCENTAGE

NOTE: Additional provisions and representations

13. NAME AND ADDRESS OF QUOTER

b. STREET ADDRESS

c. COUNTY

d. CITY e. STATE f. ZIP CODE

14. SIGNATURE OF PERSON AUTHORIZED TO

SIGN QUOTATION

16. SIGNER

a. NAME (Type or print)

c. TITLE (Type or print)

a. NAME OF QUOTER

AREA CODE

NUMBER

15. DATE OF QUOTATION

b. TELEPHONE are are not attached

AUTHORIZED FOR LOCAL REPRODUCTION

Previous edition not usable

STANDARD FORM 18 (REV. 6-95)

Prescribed by GSA - FAR (48 CFR) 53.215-1(a)

ITEM NO. SUPPLIES/SERVICES QUANTITY UNIT UNIT PRICE AMOUNT

NAME OF OFFEROR OR CONTRACTOR

2 75

CONTINUATION SHEET

REFERENCE NO. OF DOCUMENT BEING CONTINUED PAGE OF

(A) (B) (C) (D) (E) (F)

140G0224Q0026

Items, as appropriate for this acquisition. Award shall be made to the vendor whose quote, conforming to this RFQ is determined to be the most advantageous to the government.

4) This solicitation is NOT a Small Business Set

Aside. The associated NAICS Code is 325199 All

Other Basic Organic Chemical Manufacturing.

5) Vendors are required to be registered and active in System for Award Management (SAM) when submitting an offer or quotation. Register at www.sam.gov prior to submitting your quotation.

See FAR provision 52.204-7.

6) A copy of this solicitation may be accessed by clicking "Attachments/Links".

7) All requirements for preparation, submission, and receipt of quotes are contained in this solicitation and shall be adhered to.

Period of Performance: 04/01/2024 to 03/31/2029

00010 Various types of Chemicals and Organic Blank 1 EA

Water for use in Water Resource Discipline (WRD)

Water Sampling and Testing Programs, National

Water Quality Laboratory (NWQL), Denver, CO per the attached Salient Characteristic, all Terms and Conditions, and Attachment 1 - Pricing

Schedule contained herein.

This line item represents a Five (5) year period

Requirements Contract (See Attachment 1 - Pricing

Schedule for Estimated Maximum Quantities per

Year).

No Funds are obligated by this contract. All funds shall be obligated by individual delivery orders citing applicable fiscal year and accounting data when issued.

The Government contemplates award of a

Requirements contract that allows for the issuance of Firm-Fixed Price Delivery Orders resulting from this solicitation.

NSN 7540-01-152-8067 OPTIONAL FORM 336 (4-86)

RFQ 140G0224Q0026

Table of Contents

SALIENT CHARACTERISTIC FOR CHEMICALS AND ORGANIC BLANK WATER

DOI ELECTRONIC INVOICING Electronic Invoicing and Payment Requirements - Invoice Processing Platform (IPP) (FEB 2021) GS0228 Hazardous Shipping (SEP 2018) GS0231 Technical Liaison -Technical Direction (JUL 2018) GS0339 Green Acquisition (JUL 2018) GS0901 Place of Delivery. (JUL 2001) GS1101 Contract Administration Office. (JUL 2001) GS1131 Unilateral Deobligation of Unexpended Funds. (MAY 2013) GS1430 Ordering Authority and Procedures (JUL 2001) GS1431 Contract Maximum. (JUL 2001) GS1433 Requiring Activities (JUL 2001) 52.212-5 Contract Terms and Conditions Required To Implement Statutes or Executive Orders - Commercial Products and Commercial Services. (DEC 2023) 52.216-18 Ordering. (AUG 2020) 52.216-19 Order Limitations. (Oct 1995) 52.216-21 Requirements. (Oct 1995) 52.232-39 Unenforceability of Unauthorized Obligations. (JUN 2013) List of Documents, Exhibits and Other Attachments 52.252-2 Clauses Incorporated by Reference. (FEB 1998) 52.252-1 Solicitation Provisions Incorporated by Reference. (FEB 1998) GS2101 Inquiries (FEB 2007) GS2115 Independent Review of Protests to the Agency (Jul 2001) 52.204-20 Predecessor of Offeror. (AUG 2020) 52.204-24 Representation Regarding Certain Telecommunications and Video Surveillance Services or Equipment. (NOV 2021) 52.204-26 Covered Telecommunications Equipment or Services-Representation. (OCT 2020) 52.209-11 Representation by Corporations Regarding Delinquent Tax Liability or a Felony Conviction under any Federal Law. (FEB 2016) 52.212-3 Offeror Representations and Certifications-Commercial Products and Commercial Services.

(NOV 2023)

52.216-1 Type of Contract. (APR 1984) 52.217-5 Evaluation of Options. (JUL 1990) 52.219-1 Small Business Program Representations. (SEP 2023) 52.222-22 Previous Contracts and Compliance Reports. (FEB 1999) 52.222-25 Affirmative Action Compliance. (APR 1984) 52.229-11 Tax on Certain Foreign Procurements-Notice and Representation. (JUN 2020) 52.233-2 Service of Protest Department of the Interior (SEPT 2006) (Deviation) 52.212-2 Evaluation – Commercial Items (NOV 2021) Quotation Instructions Electronic Submission of Quotations - Required Questions - Cutoff

Clauses:

SALIENT CHARACTERISTIC FOR CHEMICALS AND ORGANIC BLANK WATER

A. Introduction:

The U.S. Geological Survey (USGS), National Water Quality Laboratory (NWQL) has a requirement for various types of chemicals and organic blank water for use in Water Resource Discipline (WRD) water sampling and testing program.

B. Background:

The U.S. Geological Survey (USGS), National Water Quality Laboratory (NWQL) has a requirement for various types of chemicals and organic blank water for use in Water Resource Discipline (WRD) water sampling and testing programs. The USGS, WRD, and NWQL strive to maintain national consistency in all of the environmental samples collected by their personnel. The scientific analytical data from these samples is available and presented for use by other agencies and the public. It is extremely important that the supplies acquired hereunder be of high quality and will continue to provide consistency with the data that has been obtained, in some cases, for over a decade. Consistency in data is critical for the NWQL and USGS programs across the country for which the Lab does analysis, and only high-quality items will allow for this. Unlike commercial labs, the NWQL, and the USGS programs they support, monitor trends in the data. In addition, the organic blank water is also provided to field personnel through the National Field Supply Service (NFSS) for use in rinsing collection bottles, equipment blanks, and field blanks.

C. Scope: This specification covers the requirement for chemicals and organic blank water required by the NWQL to conduct their analysis. During the performance of this contract, the Government may add or delete items from the contract based on the changing needs of its sampling and testing programs.

D. Requirement: Salient characteristic reflects the characteristics and level of quality that will satisfy the Government’s need for chemicals and organic blank water.

High purity reagents are critical for the trace level analyses that are performed at the NWQL. The intended uses of each product are partially identified through the grade of the chemical. Equivalent grades may be acceptable as long as the requirements specified below are met. For many of the NWQL’s current products, these grades are defined as follows by the respective manufacturer:

B&J Brand For HPLC, GC, pesticide residue analysis, spectrophotometry and combinatorial chemistry.

HPLC Gradient Grade Solvents tested for suitability in HPLC applications.

GC2 For capillary gas chromatography applications requiring trace analysis at or below the part-per-billion level.

BAKER ANALYZEDTM A grade of high-quality chemicals for laboratory and specialized industrial use. The quality of many BAKER ANALYZEDTM Reagents meet or exceed the requirements set forth by the America Chemical Society (ACS). These products are designated BAKER ANALYZEDTM ACS Reagents.

BAKER INSTRA-ANALYZED® Acids and standards that are purified and characterized for use in trace element analysis.

BAKER ULTRA RESI-ANALYZED® Ultra high purity solvents and salts developed for organic residue extraction / concentration procedures. These solvents are fully characterized and lot controlled by ECD, FID, or other method-specific detectors. Advanced stabilizer systems are incorporated to ensure solvent stability and superior performance. Solvents are suitable for exacting EPA sample cleanup protocols.

ACS Grade Meets or exceeds ACS specifications. For general analysis and procedures requiring stringent quality specifications.

Reagent Grade Meets Reagent Specifications for testing USP/NF monographs.

Brand names and part numbers will be determined upon award of the contract and must remain consistent throughout the duration of the contract. Any changes must be agreed upon with the Government and subject to QA testing at the expense of the contractor.

E. Specifications:

Phosphoric Acid, 85%, ACS Grade Specifications:

• Minimum 85.0% phosphoric acid.

• Each lot shall be thoroughly tested by the manufacture and shown to have:

Antimony (Sb) ≤ 20 ppm Magnesium (Mg) ≤ 20 ppm Arsenic (As) ≤ 1 ppm Manganese (Mn) ≤ 0.5 ppm Calcium (Ca) ≤ 20 ppm Nitrate (NO3) ≤ 5 ppm Chloride (Cl) ≤ 3 ppm Potassium (K) ≤ 50 ppm Color (APHA) ≤ 10 Sodium (Na) ≤ 250 ppm Heavy metals (as Pb)

≤ 10 ppm Volatile acids

(CH3COOH)

≤ 10 ppm

Insol. matter ≤ 10 ppm Sulfate (SO4) ≤ 30 ppm Iron (Fe) ≤ 30 ppm

• The NWQL utilizes phosphoric acid in the following analyses: 3211 and 2612/2613 and must contain these analytes at less than the NWQL’s limits of detection (see Table under Quality Assurance Section).

Water, for HPLC, Gradient Grade Specifications:

• Each lot shall be thoroughly tested by the manufacture and shown to have:

Fluorescence (as Quinine Base) ≤ 100 ppt Gradient at 210 nm ≤ 0.002 AU Gradient at 254 nm ≤ 0.0005 AU Residue After Evaporation ≤ 1 ppm Specific Conductance ≤ 2 µmho/cm Total Purgeable Organics ≤ 5 ppb UV Abs. at 190 – 240 nm ≤ 0.010 AU UV Abs. at 250 – 280 nm ≤ 0.005 AU

• The NWQL utilizes this organic blank water in the preparation and/or analysis of NWQL laboratory schedules 2001/2003/2033, 1383/1494, 1433/4433, 2434, 2440, 2437, 4437, 4440 and 1398 and the constituent may be subjected to testing at the NWQL to show that it contains target analytes for these schedules (see Table under Quality Assurance Section) at less than half the NWQL’s reporting limits.

• The NWQL also utilizes this organic blank water in the following inorganic analyses: 3211 and 2612/2613, and must contain these analytes at less than the NWQL’s limits of detection (see Table under Quality Assurance Section).

Sodium Chloride, Crystal, ACS Grade Packaging: 3.5-gallon HDPE Specifications:

• Greater than 99.0% sodium chloride.

• Each lot shall be thoroughly tested by the manufacture and shown to have:

Insoluble Matter ≤ 0.005 % Heavy Metals (as Pb) ≤ 5 ppm Iodide (I) ≤ 0.002 % Iron (Fe) ≤ 2 ppm Bromide (Br) ≤ 0.01 % Calcium (Ca) ≤ 0.002 % Chlorate and Nitrate (as

NO₃)

≤ 0.003 % Magnesium (Mg) ≤ 0.001 %

Phosphate (PO₄) ≤ 5 ppm Potassium (K) ≤ 0.005 % Sulfate (SO₄) ≤ 0.004 %

• The NWQL utilizes sodium chloride in the preparation and/or analysis of NWQL laboratory schedules 1383/1494, 2060, 1433/4433 and the constituent may be subjected to testing at the NWQL to show that it contains target analytes for these schedules (see Table under Quality Assurance Section) at less than half the NWQL’s reporting limits.

Dichloromethane, with Cyclohexene preservative, 4L Specifications:

• Shall be of sufficient quality for use in trace level HPLC, GC, GC/MS, and pesticide residue analyses.

• Greater than 99.9% dichloromethane.

• Contain less than 0.01% water.

• Each lot shall be thoroughly tested by the manufacture and shown to have:

UV Absorbance @ 300, 400 nm ≤ 0.005 AU UV Absorbance @ 250 nm ≤ 0.010 AU UV Absorbance @ 240 nm ≤ 0.100 AU UV Cutoff 333 nm Acidity (as HCl) ≤ 1 mg/L Residue ≤ 1 mg/L Chloride ≤ 10 mg/L Electron Capture GC ≤ 10 ng/L

• The NWQL utilizes dichloromethane in the preparation and/or analysis of NWQL laboratory schedules 1383/1494, 2060, 1433/4433 and the constituent may be subjected to testing at the NWQL to show that it contains target analytes for these schedules (see Table under Quality Assurance Section) at less than half the NWQL’s reporting limits.

Acetone, GC2 Grade, 4L Specifications:

• Shall be of sufficient quality for use in trace level GC and GC/MS analyses at or below the part-per-billion level.

• Greater than 99.9% acetone.

• Contains less than 0.5% water.

• Each lot shall be thoroughly tested by the manufacturer and shown to have:

o Less than 1 ppb trace contamination for semi-volatiles with a molecular weight greater than toluene (92).

o Electron capture GC analysis with no residue peaks greater than 2 ng/L as lindane.

o Flame ionization GC analysis with no peaks greater than 1 ng/mL, having a retention time of greater than diacetone alcohol, on a crossbonded 5% diphenyl/95% dimethyl polysiloxane capillary column for a splitless injection of a 1000-fold sample concentrate after exchange into hexane.

• The NWQL utilizes acetone in the preparation and/or analysis of NWQL laboratory schedules 2001/2003/2033, 1383/1494, 1304, and 1433/4433. The constituent may be subjected to testing at the NWQL to show that it contains target analytes for these schedules (see Table under Quality Assurance Section) at less than half the NWQL’s reporting limits.

• The NWQL also utilizes acetone in the following inorganic analyses: ICP-MS, 3211 and 2612/2613, and must contain these analytes at less than the NWQL’s limits of detection (see Table under Quality Assurance Section).

Acetonitrile, B&J Brand®, 4L Specifications:

• Shall be of sufficient quality for use in trace level HPLC, GC, and GC/MS analyses for pesticides, polycyclic aromatic hydrocarbons (PAHs) and other semi-volatile organic compounds.

• Greater than 99.9% acetonitrile.

• Contains less than 0.01% water.

• Each lot shall be thoroughly tested by the manufacture and shown to have:

Electron Capture GC ≤ 10 ng/L HPLC Gradient @ 254 nm ≤ 0.001 AU HPLC Gradient @ 215 nm ≤ 0.005 AU UV Absorbance @ 250, 350 nm ≤ 0.005 AU UV Absorbance @ 225 nm ≤ 0.010 AU UV Absorbance @ 210 nm ≤ 0.040 AU UV Absorbance @ 200 nm ≤ 0.050 AU UV Cutoff ≤ 190 nm Fluorescence (as quinine base) ≤ 0.30 ppb Residue ≤ 1 mg/L

Ethyl Ether, without Preservative, B&J Brand®, 4L Specifications:

• Shall be of sufficient quality for use in trace level HPLC, GC, and GC/MS analyses for pesticides, polycyclic aromatic hydrocarbons (PAHs) and other semi-volatile organic compounds.

• Greater than 99.9% ethyl ether.

• Contains less than 0.03% water.

• Each lot shall be thoroughly tested by the manufacture and shown to have:

UV Absorbance @ 300, 400 nm ≤ 0.005 AU UV Absorbance @ 275 nm ≤ 0.010 AU UV Absorbance @ 250 nm ≤ 0.080 AU UV Cutoff 215 nm Residue ≤ 1 mg/L Peroxide (as H2O2) ≤ 1 ppm Electron Capture GC ≤ 10 ng/L

• The NWQL utilizes ethyl ether in the preparation and/or analysis of NWQL laboratory schedules 1304 and 1433. The constituent may be subjected to testing at the NWQL to show that it contains target analytes for these schedules (see Table under Quality Assurance Section) at less than half the NWQL’s reporting limits.

Methanol, B&J Brand®, 4L Specifications:

• Shall be of sufficient quality for use in trace level HPLC, GC, and GC/MS analyses for pesticides, polycyclic aromatic hydrocarbons (PAHs) and other semi-volatile organic compounds.

• Greater than 99.9% methanol.

• Contains less than 0.05% water.

• Each lot shall be thoroughly tested by the manufacture and shown to have:

HPLC Gradient @ 254 nm ≤ 0.001 AU HPLC Gradient @ 220 nm ≤ 0.005 AU UV Absorbance @ 300, 400 nm ≤ 0.005 AU UV Absorbance @ 250 nm ≤ 0.020 AU UV Absorbance @ 225 nm ≤ 0.160 AU UV Cutoff 205 nm Fluorescence (as quinine base) ≤ 0.30 ppb Residue ≤ 1 mg/L Electron Capture GC ≤ 10 ng/L

• The NWQL utilizes methanol in the preparation and/or analysis of NWQL laboratory schedules 2440, 2437, 2001/2003/2033, 2060, 2434/4434, and 1433. The constituent may be subjected to testing at the NWQL to show that it contains target analytes for these schedules (see Table under Quality Assurance Section) at less than half the NWQL’s reporting limits.

Isopropyl Alcohol, B&J Brand®, 4L Specifications:

• Shall be of sufficient quality for use in trace level HPLC, GC, and GC/MS analyses for pesticides, polycyclic aromatic hydrocarbons (PAHs) and other semi-volatile organic compounds.

• Greater than 99.9% isopropyl alcohol.

• Contains less than 0.06% water.

• Each lot shall be thoroughly tested by the manufacture and shown to have:

UV Absorbance @ 300, 400 nm ≤ 0.005 AU UV Absorbance @ 250 nm ≤ 0.020 AU UV Absorbance @ 225 nm ≤ 0.160 AU UV Cutoff 205 nm Residue ≤ 1 mg/L Electron Capture GC ≤ 2 µg/L

• The NWQL utilizes isopropyl alcohol in the preparation and/or analysis of NWQL laboratory schedules 2001/2003/2033, 1383/1494, and 1433/4433. The constituent may be subjected to testing at the NWQL to show that it contains target analytes for these schedules (see Table under Quality Assurance Section) at less than half the NWQL’s reporting limits.

Toluene, B&J Brand®, 4L Specifications:

• Shall be of sufficient quality for use in trace level HPLC, GC, and GC/MS analyses for pesticides, polycyclic aromatic hydrocarbons (PAHs) and other semi-volatile organic compounds.

• Greater than 99.8% toluene.

• Contains less than 0.03% water.

• Each lot shall be thoroughly tested by the manufacture and shown to have:

UV Absorbance @ 350, 400 nm ≤ 0.005 AU UV Absorbance @ 325 nm ≤ 0.025 AU UV Absorbance @ 300 nm ≤ 0.120 AU UV Cutoff 284 nm Residue ≤ 1 mg/L Electron Capture GC ≤ 2 µg/L Benzene ≤ 500 mg/L

• The NWQL utilizes toluene in the preparation and/or analysis of NWQL laboratory schedules 2001/2003/2033 and 2434/4434. The constituent may be subjected to testing at the NWQL to show that it contains target analytes for these schedules (see Table under Quality Assurance Section) at less than half the NWQL’s reporting limits.

Chloroform, Contains Amylene and 1% Ethanol Preservative, B&J Brand®, 4L Specifications:

• Shall be of sufficient quality for use in trace level HPLC, GC, and GC/MS analyses for pesticides, polycyclic aromatic hydrocarbons (PAHs) and other semi-volatile organic compounds.

• Greater than 99.9% chloroform.

• Contains less than 0.02% water.

• Each lot shall be thoroughly tested by the manufacture and shown to have:

UV Absorbance @ 275, 300, 400 nm ≤ 0.005 AU UV Absorbance @ 250 nm ≤ 0.300 AU Acidity (as HCl) ≤ 1 mg/L Residue ≤ 1 mg/L Chloride ≤ 10 mg/L Electron Capture GC ≤ 10 ng/L UV Cutoff 245 nm

• The NWQL utilizes chloroform in the preparation and/or analysis of NWQL laboratory schedule

96. The constituent may be subjected to testing at the NWQL to show that it contains target analytes for these schedules (see Table under Quality Assurance Section) at less than half the NWQL’s reporting limits.

Hydrochloric Acid, 36.5 – 38.0%, BAKER INSTRA-ANALYZED® Reagent, 2.5L Specifications:

• Shall be of sufficient quality for use in trace level metals analysis (10 ppt – 5 ppb).

• Each lot shall be thoroughly tested by the manufacture and shown to have:

Color (APHA) ≤ 10 Heavy Metals (as Pb) ≤ 100.0 ppb Residue after Ignition ≤ 3 ppm Gold (Au) ≤ 4.0 ppb Specific Gravity at 60°/60°F

1.185 - 1.192 Lead (Pb) ≤ 1.0 ppb

Bromide (Br) ≤ 0.005 % Iron (Fe) ≤ 15.0 ppb Extractable Organic Substances

≤ 5 ppm Magnesium (Mg) ≤ 10.0 ppb

Free Chlorine (as Cl₂)

≤ 0.5 ppm Lithium (Li) ≤ 1.0 ppb

Phosphate (PO₄) ≤ 0.05 ppm Molybdenum (Mo) ≤ 10.0 ppb

Sulfate (SO₄) ≤ 0.5 ppm Nickel (Ni) ≤ 4.0 ppb Sulfite (SO₃) ≤ 0.8 ppm Manganese (Mn) ≤ 1.0 ppb Ammonium (NH₄) ≤ 3 ppm Mercury (Hg) ≤ 0.5 ppb Arsenic (As) ≤ 0.01 ppm Silicon (Si) ≤ 100.0 ppb Aluminum (Al) ≤ 10.0 ppb Niobium (Nb) ≤ 1.0 ppb Arsenic and Antimony (as As)

≤ 5.0 ppb Potassium (K) ≤ 9.0 ppb

Barium (Ba) ≤ 1.0 ppb Strontium (Sr) ≤ 1.0 ppb Bismuth (Bi) ≤ 10.0 ppb Tantalum (Ta) ≤ 1.0 ppb Beryllium (Be) ≤ 1.0 ppb Silver (Ag) ≤ 1.0 ppb Cadmium (Cd) ≤ 1.0 ppb Sodium (Na) ≤ 100.0 ppb Boron (B) ≤ 20.0 ppb Titanium (Ti) ≤ 1.0 ppb Chromium (Cr) ≤ 1.0 ppb Vanadium (V) ≤ 1.0 ppb Calcium (Ca) ≤ 50.0 ppb Thallium (Tl) ≤ 5.0 ppb Copper (Cu) ≤ 1.0 ppb Tin (Sn) ≤ 5.0 ppb Cobalt (Co) ≤ 1.0 ppb Zirconium (Zr) ≤ 1.0 ppb Germanium (Ge) ≤ 3.0 ppb Zinc (Zn) ≤ 5.0 ppb Gallium (Ga) ≤ 1.0 ppb

• The NWQL utilizes hydrochloric acid in the preparation and/or analysis of NWQL laboratory methods: Microkjeldahl digestion (KJ), Low-Level Phosphorus (LLP), Alkaline Persulfate digestion (ALK), Mercury (Hg), ICP-OES, and ICP-MS. The constituent may be subjected to testing at the NWQL to show that it contains target analytes for these schedules (see Table under Quality Assurance Section) at less than the NWQL’s detection limits.

Hexanes, 95% n-Hexane, BAKER ULTRA RESI-ANALYZED® Reagent, 4L Specifications:

• Shall be of sufficient quality for use in trace level HPLC, GC, and GC/MS analyses for pesticides, polycyclic aromatic hydrocarbons (PAHs) and other semi-volatile organic compounds.

• Greater than 95% n-hexane.

• Contains less than 0.05% water.

• Each lot shall be thoroughly tested by the manufacture and shown to have:

Trace Organic Residues - FID-Sensitive Impurities (as 2- Octanol) Single Impurity Peak (ng/mL)

≤ 5

GC-ECD Sensitive Impurities (as Heptachlor Epoxide) Single Peak (ng/L)

≤ 10

ECD-Sensitive Impurities (as Ethylene Dibromide) - Single Impurity Peak (ng/mL)

≤ 5

Assay (Total Saturated C₆ Isomers) (by GC, corrected for water)

≥ 99.5 %

Assay (as n-Hexane) (by GC, corrected for water) ≥ 95 % Color (APHA) ≤ 10 Residue after Evaporation ≤ 1 ppm Substances Darkened by H₂SO₄ Passes Test

• The NWQL utilizes n-hexanes in the preparation and/or analysis of NWQL laboratory schedules 2001/2003/2033, 1324, and 1319. The constituent may be subjected to testing at the NWQL to show that it contains target analytes for these schedules (see Table under Quality Assurance Section) at less than the NWQL’s detection limits.

Sodium Sulfate, Anhydrous, Granular (12-60 mesh), BAKER ULTRA RESI-ANALYZED® ACS Reagent, 2.5kg, Box/4 Specifications:

• Shall be suitable for use in trace level organic extractions.

• Tested for the absence of hexane extractable impurities.

• Each lot shall be thoroughly tested by the manufacture and shown to have:

Sodium Sulfate (Na₂SO₄) ≥ 99.0 % Insoluble Matter ≤ 0.01 % Loss on Ignition ≤ 0.5 % pH of 5% Solution at 25°C 5.2 - 9.2 Chloride (Cl) ≤ 0.001 % Phosphate (PO₄) ≤ 0.001 % Calcium (Ca) ≤ 0.01 % Iron (Fe) ≤ 0.001 % Magnesium (Mg) ≤ 0.005 % Potassium (K) ≤ 0.01 % Heavy Metals (as Pb) ≤ 5 ppm Nitrogen Compounds (as N) ≤ 5 ppm

• The NWQL utilizes sodium sulfate in the preparation and/or analysis of NWQL laboratory schedule 1433. The constituent may be subjected to testing at the NWQL to show that it contains target analytes for these schedules (see Table under Quality Assurance Section) at less than the NWQL’s detection limits.

Nitric Acid, 69.0 – 70.0%, BAKER INSTRA-ANALYZED® Reagent, 2.5L, Case/4 Specifications:

• Shall be of sufficient quality for use in trace level metals analysis (10 ppt – 5 ppb).

• Each lot shall be thoroughly tested by the manufacture and shown to have:

Color (APHA) ≤ 10 Lead (Pb) ≤ 0.5 ppb Residue after Ignition ≤ 2 ppm Iron (Fe) ≤ 10.0 ppb Chloride (Cl) ≤ 0.04 ppm Magnesium (Mg) ≤ 7.0 ppb Phosphate (PO₄) ≤ 0.10 ppm Lithium (Li) ≤ 1.0 ppb Sulfate (SO₄) ≤ 0.4 ppm Mercury (Hg) ≤ 0.5 ppb Aluminum (Al) ≤ 30.0 ppb Manganese (Mn) ≤ 1.0 ppb Arsenic and Antimony (as As)

≤ 5.0 ppb Nickel (Ni) ≤ 1.0 ppb

Barium (Ba) ≤ 1.0 ppb Molybdenum (Mo) ≤ 5.0 ppb Beryllium (Be) ≤ 1.0 ppb Silicon (Si) ≤ 20.0 ppb Bismuth (Bi) ≤ 1.0 ppb Silver (Ag) ≤ 1.0 ppb Boron (B) ≤ 4.0 ppb Niobium (Nb) ≤ 1.0 ppb Cadmium (Cd) ≤ 1.0 ppb Potassium (K) ≤ 5.0 ppb Chromium (Cr) ≤ 10.0 ppb Tantalum (Ta) ≤ 2.0 ppb Calcium (Ca) ≤ 50.0 ppb Thallium (Tl) ≤ 5.0 ppb Copper (Cu) ≤ 1.0 ppb Sodium (Na) ≤ 200.0 ppb Cobalt (Co) ≤ 1.0 ppb Strontium (Sr) ≤ 1.0 ppb Germanium (Ge) ≤ 4.0 ppb Zinc (Zn) ≤ 5.0 ppb Gallium (Ga) ≤ 20.0 ppb Zirconium (Zr) ≤ 1.0 ppb

Heavy Metals (as Pb) ≤ 100.0 ppb Tin (Sn) ≤ 5.0 ppb Gold (Au) ≤ 4.0 ppb Vanadium (V) ≤ 1.0 ppb

• The NWQL utilizes hydrochloric acid in the preparation and/or analysis of NWQL laboratory methods: Ion Chromatography (IC), Mercury (Hg), ICP-OES, and ICP-MS. The constituent may be subjected to testing at the NWQL to show that it contains target analytes for these schedules (see Table under Quality Assurance Section) at less than the NWQL’s detection limits.

Sulfuric Acid, 95.0 – 98.0%, BAKER ANALYZEDTM Reagent, 2.5L Specifications:

• Shall be of sufficient quality for use in trace level metals analysis (10 ppt – 5 ppb).

• Each lot shall be thoroughly tested by the manufacture and shown to have:

Color (APHA) ≤ 10 Iron (Fe) ≤ 200.0 ppb Specific Gravity at 60°/60°F ≥ 1.84 Heavy Metals (as Pb) ≤ 500.0 ppb Residue after Ignition ≤ 4 ppm Magnesium (Mg) ≤ 200.0 ppb Substances Reducing Permanganate (as SO₂)

≤ 2 ppm Lead (Pb) ≤ 200.0 ppb

Ammonium (NH₄) ≤ 1 ppm Mercury (Hg) ≤ 5.0 ppb Trace Impurities - Arsenic (As)

≤ 0.004 ppm Manganese (Mn) ≤ 100.0 ppb

Chloride (Cl) ≤ 0.1 ppm Potassium (K) ≤ 300.0 ppb Nitrate (NO₃) ≤ 0.5 ppm Nickel (Ni) ≤ 200.0 ppb Aluminum (Al) ≤ 200.0 ppb Tin (Sn) ≤ 200.0 ppb Calcium (Ca) ≤ 200.0 ppb Sodium (Na) ≤ 300.0 ppb Chromium (Cr) ≤ 100.0 ppb Zinc (Zn) ≤ 200.0 ppb Copper (Cu) ≤ 100.0 ppb Titanium (Ti) ≤ 200.0 ppb Gold (Au) ≤ 100.0 ppb

• The NWQL utilizes sulfuric acid in the preparation and/or analysis of NWQL laboratory schedules / methods: 1383/1494, 4433, 96, Microkjeldahl digestion (KJ), Low-Level Phosphorus (LLP), and Alkaline Persulfate digestion (ALK). The constituent may be subjected to testing at the NWQL to show that it contains target analytes for these schedules (see Table under Quality Assurance Section) at less than the NWQL’s detection limits.

Quality Assurance:

The acceptability of items delivered hereunder will be determined as follows:

(1) For Chemicals: Based on the manufacturer’s expiration date for each respective chemical, the chemical shall not expire within the time specified in the table below from date of delivery to the NWQL. All chemicals shall meet or exceed the manufacturer’s acceptance levels.

Minimum expiration of each supply upon arrival at the NWQL:

Supply Minimum Expiration Additional Comments

Phosphoric Acid 6 months

Water 11 months ▪ Annual quantity shall be from one lot / batch. See Delivery Terms for Water Only.

▪ Initially submit 4-4L bottles for QA testing and approval of lot.

▪ See 15-working day justification for QA testing and acceptance / rejection.

Sodium Chloride 1 year

Dichloromethane 6 months ▪ Initially submit 1-4L bottles for QA testing and approval of lot.

Acetone 6 months

Acetonitrile 6 months

Ethyl Ether 6 months

Methanol 6 months

Isopropyl Alcohol 6 months

Toluene 6 months

Chloroform 6 months

Hydrochloric Acid 6 months

Hexane 6 months ▪ Order must be from one lot / batch.

▪ See 15-working day justification for QA testing and acceptance / rejection.

Nitric Acid 6 months

Sulfuric Acid 6 months pH Indicator Strips None

(2) For Hexane and Dichloromethane: Based on the manufacturer’s expiration date for each item (Hexane or Dichloromethane), the item shall not expire within the time specified above from date of delivery to the NWQL. All items shall meet or exceed the manufacturer’s acceptance levels.

Upon delivery of the Hexane and Dichloromethane, the NWQL may conduct tests to ensure items meet specifications.

(3) For Water: The NWQL will conduct in-house quality assurance (QA) testing for each lot out of which the Contractor shall be using to fulfill NWQL requirements. The following procedure shall be followed for the QA testing. The Contractor, prior to delivery of the first quantities for a contract period, shall deliver a case (4-4L bottles) to the NWQL for QA testing by NWQL methods. The QA testing is anticipated to take fifteen (15) days. Once QA testing is completed and the supply lot is deemed acceptable, the Contractor will be notified. In the event the submitted sample is not acceptable, this process shall be repeated. See “Delivery Terms For Water Only”, following. In the event a new lot must be used to fulfill NWQL requirements within a contract period, samples from the new lot shall be submitted to the NWQL for QA testing following the above procedures.

(4) Once the contract has been awarded, no changes to the brand name or part number may be provided without approval of the NWQL and with extensive testing to ensure comparability at the cost of the supplier.

(5) A printed copy of the safety data sheet (SDS) shall be included for each constituent within each order.

(6) Each constituent shall be of sufficient quality to support the detection / reporting limits attainable by the NWQL for all applicable methods. The applicable NWQL analysis schedules (methods) are identified in the specifications for each constituent. A list of all methods and current detection / reporting limits is provided in the tables below.

Table of parameters, schedules and reporting limits for NWQL organic methods that will be utilizing some of the constituents supplied hereunder. The relevant constituents may be subjected to testing at the NWQL to show that it contains target analytes for the respective schedules at less than one-half the NWQL’s reporting limits.

Parameter NWQL Schedule

Reporting Limit Unit

2,4,5-T 1304 0.012 g/L 2,4-D 1304 0.012 g/L Dichlorprop 1304 0.018 g/L 2,(2,4,5-Trichlorophenoxy) propionic acid (Silvex) 1304 0.023 g/L

MBAS 96 0.050 mg/L Aldrin 1324 0.013 g/L alpha-Endosulfan 1324 0.012 g/L Chlordane, technical mix 1324 0.1 g/L Dieldrin 1324 0.008 g/L Endrin 1324 0.012 g/L Heptachlor 1324 0.008 g/L Heptachlor epoxide 1324 0.009 g/L Lindane 1324 0.014 g/L Mirex 1324 0.006 g/L p,p'-DDD 1324 0.016 g/L p,p'-DDE 1324 0.014 g/L p,p'-DDT 1324 0.01 g/L p,p'-Methoxychlor 1324 0.002 g/L Polychlorinated biphenyls, total 1324 0.1 g/L Toxaphene 1324 1 g/L Carbophenothion 1319 0.02 g/L Chlorpyrifos 1319 0.02 g/L Diazinon 1319 0.02 g/L Disulfoton 1319 0.02 g/L Ethion 1319 0.018 g/L Fonofos 1319 0.018 g/L Malathion 1319 0.1 g/L Methyl parathion 1319 0.018 g/L Parathion 1319 0.02 g/L Phorate 1319 0.019 g/L Tribufos 1319 0.02 g/L Cotinine 1433/4433 0.08 g/L 3,4-Dichlorophenyl isocyanate 4433 0.32 g/L 3-beta-Coprostanol 1433/4433 1.6 g/L 4-n-Octylphenol 1433/4433 0.02 g/L 4-Nonylphenol diethoxylate (NP2EO), all isomers 1433/4433 1.6 g/L

4-Nonylphenol monoethoxylate (NP1EO), all isomers 4433 1.6 g/L

4-tert-Octylphenol diethoxylate, aka OP2EO 1433/4433 0.2 g/L 4-tert-Octylphenol monoethoxylate, aka OP1EO 1433/4433 0.6 g/L

5-Methyl-1H-benzotriazole 1433/4433 0.32 g/L Anthraquinone 1433/4433 0.04 g/L Acetophenone 1433/4433 0.4 g/L

Acetyl hexamethyl tetrahydronaphthalene (AHTN) 1433/4433 0.04 g/L

Anthracene 1433/4433 0.01 g/L Atrazine 4433 0.16 g/L 1,4-Dichlorobenzene 1433/4433 0.04 g/L Benzo[a]pyrene 1433/4433 0.02 g/L Benzophenone 1433/4433 0.08 g/L Bromacil 1433/4433 0.16 g/L Bromoform 1433/4433 0.1 g/L 3-tert-Butyl-4-hydroxy anisole (BHA) 1433/4433 0.16 g/L Caffeine 1433/4433 0.06 g/L Camphor 1433/4433 0.044 g/L Carbaryl 1433/4433 0.06 g/L Carbazole 1433/4433 0.02 g/L Chlorpyrifos 1433/4433 0.12 g/L Cholesterol 1433/4433 1.6 g/L Isopropylbenzene 1433/4433 0.04 g/L N,N-diethyl-meta-toluamide (DEET) 1433/4433 0.04 g/L Diazinon 1433/4433 0.16 g/L Dichlorvos 4433 0.08 g/L Bisphenol A 4433 0.04 g/L Triethyl citrate (ethyl citrate) 1433/4433 0.04 g/L Tetrachloroethylene 1433/4433 0.12 g/L Fluoranthene 1433/4433 0.02 g/L Hexahydrohexamethylcyclopentabenzopyran (HHCB) 1433/4433 0.04 g/L

Indole 1433/4433 0.04 g/L Isoborneol 1433/4433 0.08 g/L Isophorone 1433/4433 0.032 g/L Isoquinoline 1433/4433 0.8 g/L d-Limonene 1433/4433 0.08 g/L Menthol 1433/4433 0.32 g/L Metalaxyl 1433/4433 0.12 g/L Metolachlor 1433/4433 0.028 g/L Naphthalene 1433/4433 0.02 g/L 1-Methylnaphthalene 1433/4433 0.022 g/L 2,6-Dimethylnaphthalene 1433/4433 0.04 g/L 2-Methylnaphthalene 1433/4433 0.036 g/L p-Cresol 1433/4433 0.08 g/L 4-Cumylphenol 1433/4433 0.04 g/L para-Nonylphenol (total) (branched) 1433/4433 1.6 g/L 4-tert-Octylphenol 1433/4433 0.14 g/L 2,2',4,4'-Tetrabromodiphenylether (PBDE 47) 4433 0.04 g/L Phenanthrene 1433/4433 0.016 g/L Phenol 1433/4433 0.16 g/L Pentachlorophenol 4433 1.6 g/L Tributyl phosphate 1433/4433 0.064 g/L Triphenyl phosphate 1433/4433 0.08 g/L Tris(2-butoxyethyl)phosphate 1433/4433 0.64 g/L Tris(2-chloroethyl)phosphate 1433/4433 0.1 g/L Bis(2-ethylhexyl) phthalate 4433 2 g/L Diethyl phthalate 4433 0.4 g/L

Prometon 1433/4433 0.12 g/L Pyrene 1433/4433 0.02 g/L Methyl salicylate 1433/4433 0.044 g/L 3-Methyl-1(H)-indole (Skatole) 1433/4433 0.036 g/L beta-Sitosterol 1433/4433 4 g/L beta-Stigmastanol 1433/4433 2.6 g/L Triclosan 1433/4433 0.2 g/L Tris(dichloroisopropyl)phosphate 1433/4433 0.16 g/L 2,4-D 2060 0.06 g/L 2,4-D methyl ester 2060 0.2 g/L 2,4-D plus 2,4-D methyl ester 2060 0.06 g/L 2,4-DB 2060 0.02 g/L 2-Chloro-4-isopropylamino-6-amino-s-triazine {CIAT} 2060 0.06 g/L

2-Chloro-6-ethylamino-4-amino-s-triazine {CEAT} 2060 0.08 g/L

2-Hydroxy-4-isopropylamino-6-ethylamino-s-triazine {OIET} 2060 0.06 g/L

3(4-Chlorophenyl)-1-methyl urea 2060 0.10 g/L 3-Hydroxycarbofuran 2060 0.06 g/L Acifluorfen 2060 0.08 g/L Aldicarb 2060 0.12 g/L Aldicarb sulfone 2060 0.08 g/L Aldicarb sulfoxide 2060 0.08 g/L Atrazine 2060 0.08 g/L Bendiocarb 2060 0.04 g/L Benomyl 2060 0.06 g/L Bensulfuron-methyl 2060 0.06 g/L Bentazone 2060 0.06 g/L Bromacil 2060 0.06 g/L Bromoxynil 2060 0.12 g/L Caffeine 2060 0.08 g/L Carbaryl 2060 0.04 g/L Carbofuran 2060 0.04 g/L Chloramben, methyl ester 2060 0.20 g/L Chlorimuron-ethyl 2060 0.08 g/L Clopyralid 2060 0.14 g/L Cycloate 2060 0.04 g/L Dacthal monoacid 2060 0.04 g/L Dicamba 2060 0.10 g/L Dichlorprop 2060 0.04 g/L Dinoseb 2060 0.06 g/L Diphenamid 2060 0.04 g/L Diuron 2060 0.04 g/L Fenuron 2060 0.06 g/L Flumetsulam 2060 0.08 g/L Fluometuron 2060 0.04 g/L Imazaquin 2060 0.14 g/L Imazethapyr 2060 0.08 g/L Imidacloprid 2060 0.08 g/L Linuron 2060 0.04 g/L MCPA 2060 0.04 g/L MCPB 2060 0.2 g/L

Metalaxyl 2060 0.04 g/L Methiocarb 2060 0.04 g/L Methomyl 2060 0.12 g/L Metsulfuron methyl 2060 0.14 g/L Neburon 2060 0.02 g/L Nicosulfuron 2060 0.32 g/L Norflurazon 2060 0.04 g/L Oryzalin 2060 0.04 g/L Oxamyl 2060 0.12 g/L Picloram 2060 0.10 g/L Propham 2060 0.040 g/L Propiconazole 2060 0.06 g/L Propoxur 2060 0.06 g/L Siduron 2060 0.04 g/L Sulfometuron-methyl 2060 0.06 g/L Tebuthiuron 2060 0.06 g/L Terbacil 2060 0.046 g/L Triclopyr 2060 0.08 g/L 1,2,4-Trichlorobenzene 1383/1494 0.26 g/L 1,2-Dichlorobenzene 1383/1494 0.2 g/L 1,2-Diphenylhydrazine 1383/1494 0.30 g/L 1,3-Dichlorobenzene 1383/1494 0.22 g/L 1,4-Dichlorobenzene 1383/1494 0.22 g/L 2,4,6-Trichlorophenol 1383/1494 0.34 g/L 2,4-Dichlorophenol 1383/1494 0.36 g/L 2,4-Dimethylphenol 1383/1494 0.8 g/L 2,4-Dinitrophenol 1383/1494 2 g/L 2,4-Dinitrotoluene 1383/1494 0.56 g/L 2,6-Dinitrotoluene 1383/1494 0.4 g/L 2-Chloronaphthalene 1383/1494 0.24 g/L 2-Chlorophenol 1383/1494 0.26 g/L 2-Nitrophenol 1383/1494 0.4 g/L 3,3'-Dichlorobenzidine 1383/1494 0.42 g/L 4,6-Dinitro-2-methylphenol 1383/1494 2 g/L 4-Bromophenylphenylether 1383/1494 0.24 g/L 4-Chloro-3-methylphenol 1383/1494 0.54 g/L 4-Chlorophenyl phenyl ether 1383/1494 0.34 g/L 4-Nitrophenol 1383/1494 0.52 g/L Acenaphthene 1383/1494 0.28 g/L Acenaphthylene 1383/1494 0.30 g/L Anthracene 1383/1494 0.38 g/L Benz[a]anthracene 1383/1494 0.26 g/L Benzo[a]pyrene 1383/1494 0.32 g/L Benzo[b]fluoranthene 1383/1494 0.30 g/L Benzo[ghi]perylene 1383/1494 0.38 g/L Benzo[k]fluoranthene 1383/1494 0.30 g/L bis(2-Chloroethoxy)methane 1383/1494 0.24 g/L bis(2-Chloroethyl)ether 1383/1494 0.30 g/L bis(2-chloroisopropyl) ether 1383/1494 0.14 g/L Bis(2-ethylhexyl) phthalate 1383/1494 7.2 g/L Butylbenzyl phthalate 1383/1494 1.8 g/L Chrysene 1383/1494 0.32 g/L

Di-n-butyl phthalate 1383/1494 2.8 g/L Di-n-octyl phthalate 1383/1494 0.6 g/L Dibenz[a,h]anthracene 1383/1494 0.42 g/L Diethyl phthalate 1383/1494 0.62 g/L Dimethyl phthalate 1383/1494 0.36 g/L Fluoranthene 1383/1494 0.30 g/L Fluorene 1383/1494 0.34 g/L Hexachlorobenzene 1383/1494 0.30 g/L Hexachlorobutadiene 1383/1494 0.24 g/L Hexachlorocyclopentadiene 1383/1494 0.50 g/L Hexachloroethane 1383/1494 0.24 g/L Indeno[1,2,3-cd]pyrene 1383/1494 0.38 g/L Isophorone 1383/1494 0.26 g/L N-Nitrosodi-n-propylamine 1383/1494 0.4 g/L N-Nitrosodimethylamine 1383/1494 0.32 g/L N-Nitrosodiphenylamine 1383/1494 0.48 g/L Naphthalene 1383/1494 0.22 g/L Nitrobenzene 1383/1494 0.26 g/L Pentachlorophenol 1383/1494 0.6 g/L Phenanthrene 1383/1494 0.32 g/L Phenol 1383/1494 0.28 g/L Pyrene 1383/1494 0.36 g/L 11-Ketotestosterone 2434/4434 2 ng/L 17-alpha-Estradiol 2434/4434 0.8 ng/L 17-alpha-Ethynylestradiol 2434/4434 0.8 ng/L 17-beta-Estradiol 2434/4434 0.8 ng/L 3-beta-Coprostanol 2434/4434 200 ng/L 4,4'-Bisphenol F 2434/4434 10 ng/L 4-Androstene-3,17-dione 2434/4434 0.8 ng/L Bisphenol A 2434/4434 100 ng/L Cholesterol 2434/4434 200 ng/L cis-Androsterone 2434/4434 0.8 ng/L Dihydrotestosterone 2434/4434 4 ng/L Epitestosterone 2434/4434 2 ng/L Equilenin 2434/4434 2 ng/L Equilin 2434/4434 8 ng/L Estriol 2434/4434 2 ng/L Estrone 2434/4434 0.8 ng/L Mestranol 2434/4434 0.8 ng/L Norethindrone 2434/4434 0.8 ng/L Progesterone 2434/4434 8 ng/L Testosterone 2434/4434 1.6 ng/L trans-Diethylstilbestrol 2434/4434 0.8 ng/L 1-Naphthol 2003/2033 0.036 g/L 2,6-Diethylaniline 2001/2003/2033 0.0060 g/L 2-Chloro-2,6-diethylacetanilide 2003/2033 0.010 g/L 2-Chloro-4-isopropylamino-6-amino-s-triazine {CIAT} 2001/2003/2033 0.006 g/L

2-Ethyl-6-methylaniline 2003/2033 0.010 g/L 3,4-Dichloroaniline 2003/2033 0.006 g/L 3,5-Dichloroaniline 2033 0.006 g/L 4-Chloro-2-methylphenol 2003/2033 0.008 g/L Acetochlor 2001/2003/2033 0.010 g/L Alachlor 2001/2003/2033 0.008 g/L alpha-Endosulfan 2033 0.010 g/L alpha-HCH 2001 0.0040 g/L Atrazine 2001/2003/2033 0.008 g/L Azinphos-methyl 2001/2003/2033 0.12 g/L Azinphos-methyl oxon 2003/2033 0.042 g/L Benfluralin 2001/2003/2033 0.014 g/L Butylate 2001 0.0040 g/L Carbaryl 2001/2003/2033 0.06 g/L Carbofuran 2001/2033 0.060 g/L Chlorpyrifos 2001/2003/2033 0.0036 g/L Chlorpyrifos, oxygen analog 2003/2033 0.08 g/L cis-Permethrin 2001/2003/2033 0.010 g/L cis-Propiconazole 2033 0.008 g/L Cyanazine 2001/2033 0.022 g/L Cyfluthrin 2003/2033 0.016 g/L Cypermethrin 2003/2033 0.020 g/L Dacthal 2001/2003/2033 0.0076 g/L Desulfinylfipronil 2001/2003/2033 0.012 g/L Desulfinylfipronil amide 2001/2003/2033 0.029 g/L Diazinon 2001/2003/2033 0.0060 g/L Diazinon, oxygen analog 2003/2033 0.012 g/L Dichlorvos 2003/2033 0.04 g/L Dicrotophos 2003/2033 0.08 g/L Dieldrin 2001/2003/2033 0.012 g/L Dimethoate 2003/2033 0.006 g/L Disulfoton 2001/2033 0.040 g/L Disulfoton sulfone 2033 0.010 g/L Endosulfan sulfate 2033 0.016 g/L EPTC 2001/2033 0.0056 g/L Ethalfluralin 2001 0.006 g/L Ethion 2003/2033 0.0046 g/L Ethion monoxon 2003/2033 0.021 g/L Ethoprophos 2001/2033 0.016 g/L Fenamiphos 2003/2033 0.030 g/L Fenamiphos sulfone 2003/2033 0.054 g/L Fenamiphos sulfoxide 2003/2033 0.08 g/L Fipronil 2001/2003/2033 0.018 g/L Fipronil sulfide 2001/2003/2033 0.012 g/L Fipronil sulfone 2001/2003/2033 0.024 g/L Fonofos 2001/2003/2033 0.0048 g/L Hexazinone 2003/2033 0.012 g/L Iprodione 2003/2033 0.014 g/L Isofenphos 2003/2033 0.008 g/L lambda-Cyhalothrin 2033 0.014 g/L Lindane 2001 0.0040 g/L Linuron 2001 0.06 g/L Malaoxon 2003/2033 0.022 g/L Malathion 2001/2003/2033 0.016 g/L Metalaxyl 2003/2033 0.014 g/L Methidathion 2003/2033 0.012 g/L Methyl parathion 2001/2003/2033 0.008 g/L Metolachlor 2001/2003/2033 0.012 g/L

Metribuzin 2001/2003/2033 0.012 g/L Molinate 2001/2033 0.008 g/L Myclobutanil 2003/2033 0.010 g/L Napropamide 2001 0.010 g/L Oxyfluorfen 2033 0.010 g/L p,p'-DDE 2001 0.0064 g/L Paraoxon-methyl 2003/2033 0.014 g/L Parathion 2001 0.020 g/L Pebulate 2001 0.016 g/L Pendimethalin 2001/2003/2033 0.012 g/L Phorate 2001/2003/2033 0.020 g/L Phorate oxon 2003/2033 0.027 g/L Phosmet 2003/2033 0.08 g/L Phosmet oxon 2003/2033 0.051 g/L Prometon 2001/2003/2033 0.012 g/L Prometryn 2003/2033 0.010 g/L Propachlor 2001 0.006 g/L Propanil 2001/2033 0.010 g/L Propargite 2001/2033 0.020 g/L Propyzamide 2001/2003/2033 0.0036 g/L Simazine 2001/2003/2033 0.006 g/L Tebuconazole 2033 0.020 g/L Tebuthiuron 2001/2003/2033 0.028 g/L Tefluthrin 2033 0.014 g/L Terbacil 2001 0.024 g/L Terbufos 2001/2003/2033 0.018 g/L Terbufos oxygen analog sulfone 2003/2033 0.045 g/L Terbuthylazine 2003/2033 0.008 g/L Thiobencarb 2001/2033 0.016 g/L trans-Propiconazole 2033 0.018 g/L Tri-allate 2001 0.0046 g/L Tribufos 2003/2033 0.018 g/L Trifluralin 2001/2003/2033 0.018 g/L 1,7-Dimethylxanthine (p-Xanthine) 2440 87 ng/L 10-Hydroxy-amitriptyline 2440 8.3 ng/L Abacavir 2440 8.2 ng/L Acetaminophen 2440 7.1 ng/L Acyclovir 2440 22 ng/L Albuterol 2440 6.7 ng/L Alprazolam 2440 21 ng/L Amitriptyline 2440 37 ng/L Amphetamine 2440 8.1 ng/L Antipyrine 2440 116 ng/L Atenolol 2440 13 ng/L Atrazine 2440 19 ng/L Benztropine 2440 24 ng/L Betamethasone 2440 114 ng/L Bupropion 2440 17 ng/L Caffeine 2440 90 ng/L Carbamazepine 2440 11 ng/L Carisoprodol 2440 12 ng/L Chlorpheniramine 2440 4.6 ng/L Cimetidine 2440 27 ng/L Citalopram 2440 6.5 ng/L

Clonidine 2440 60 ng/L Codeine 2440 88 ng/L Cotinine 2440 6.3 ng/L Dehydronifedipine 2440 24 ng/L Desmethyldiltiazem 2440 12 ng/L desvenlafaxine 2440 7.4 ng/L Dextromethorphan 2440 8.2 ng/L Diazepam (valium) 2440 2.2 ng/L Diltiazem 2440 10 ng/L Diphenhydramine 2440 5.7 ng/L Duloxetine 2440 36 ng/L Erythromycin 2440 53 ng/L Ezetimibe 2440 63 ng/L Fadrozole 2440 7.3 ng/L Famotidine 2440 10 ng/L Fenofibrate 2440 6.2 ng/L Fexofenadine 2440 19 ng/L Fluconazole 2440 71 ng/L Fluoxetine 2440 26 ng/L Fluticasone propionate 2440 4.6 ng/L Fluvoxamine 2440 53 ng/L Glipizide 2440 148 ng/L Glyburide 2440 3.9 ng/L Hydrocodone 2440 10 ng/L Hydrocortisone 2440 147 ng/L Hydroxyzine 2440 7.4 ng/L Iminostilbene 2440 145 ng/L Ketoconazole 2440 113 ng/L Lamivudine 2440 16 ng/L Lidocaine 2440 15 ng/L Loperamide 2440 11 ng/L Loratadine 2440 6.9 ng/L Lorazepam 2440 116 ng/L Meprobamate 2440 86 ng/L Metaxalone 2440 15 ng/L Metformin 2440 13 ng/L Methadone 2440 7.6 ng/L methocarbamol 2440 8.7 ng/L Methotrexate 2440 52 ng/L methyl-1H-benzotriazole 2440 141 ng/L Metoprolol 2440 27 ng/L Morphine 2440 14 ng/L Nadalol 2440 80 ng/L Nevirapine 2440 15 ng/L nicotine 2440 57 ng/L Nizatidine 2440 19 ng/L Nordiazepam 2440 41 ng/L Norethindrone 2440 10 ng/L Norfluoxetine 2440 199 ng/L Norsertraline 2440 192 ng/L Norverapamil 2440 8.5 ng/L Omeprazole + Esomprazole 2440 5.6 ng/L Oseltamivir 2440 14 ng/L Oxazepam 2440 140 ng/L Oxycodone 2440 24 ng/L Paroxetine 2440 20 ng/L

Penciclovir 2440 40 ng/L Pentoxifylline 2440 9.3 ng/L Phenazopyridine 2440 13 ng/L Phendimetrazine 2440 31 ng/L Phenytoin 2440 188 ng/L Piperonyl butoxide 2440 3.0 ng/L Prednisolone 2440 150 ng/L Prednisone 2440 168 ng/L Promethazine 2440 50 ng/L Propoxyphene 2440 17 ng/L Propranolol 2440 26 ng/L Pseudoephedrine + Ephedrine 2440 11 ng/L Quinine 2440 79 ng/L Raloxifene 2440 9.7 ng/L Ranitidine 2440 192 ng/L Sertraline 2440 16 ng/L Sitagliptin 2440 97 ng/L Sulfadimethoxine 2440 65 ng/L Sulfamethizole 2440 104 ng/L Sulfamethoxazole 2440 26 ng/L Tamoxifen 2440 80 ng/L Temazepam 2440 18 ng/L theophylline 2440 41 ng/L Thiabendazole 2440 4.1 ng/L Tiotropium 2440 43 ng/L Tramadol 2440 15 ng/L Triamterene 2440 5.2 ng/L Trimethoprim 2440 19 ng/L Valacyclovir 2440 163 ng/L Venlafaxine 2440 4.4 ng/L Verapamil 2440 15 ng/L Warfarin 2440 6.0 ng/L 1H-1,2,4-Triazole 2437 22 ng/L 2,3,3-Trichloro-2-propene-1-sulfonic acid (TCPSA) 2437 54 ng/L

2,4-D 2437 62 ng/L 2-(1-Hydroxyethyl)-6-methylaniline 2437 94 ng/L 2-[(2-Ethyl-6-methylphenyl)amino]-1-propanol 2437 5 ng/L

2-Amino-N-isopropylbenzamide 2437 4 ng/L 2-Aminobenzimidazole 2437 9 ng/L 2-Chloro-2',6'-diethylacetanilide 2437 5 ng/L 2-Chloro-4,6-diamino-s-triazine {CAAT} (Didealkylatrazine) 2437 24 ng/L

2-Chloro-4-isopropylamino-6-amino-s-triazine 2437 11 ng/L

2-Chloro-6-ethylamino-4-amino-s-triazine {CEAT} 2437 20 ng/L

2-Chloro-N-(2-ethyl-6-methylphenyl)acetamide 2437 5 ng/L

2-Hydroxy-4-isopropylamino-6-amino-s-triazine 2437 4 ng/L

2-Hydroxy-4-isopropylamino-6-ethylamino-s-triazine {OIET} 2437 8 ng/L

2-Hydroxy-6-ethylamino-4-amino-s-triazine 2437 6 ng/L 2-Isopropyl-6-methyl-4-pyrimidinol 2437 20 ng/L

3,4-Dichlorophenylurea 2437 144 ng/L 3-Hydroxycarbofuran 2437 16 ng/L 3-Phenoxybenzoic acid 2437 61 ng/L 4-(Hydroxymethyl)pendimethalin 2437 213 ng/L 4-Chlorobenzylmethyl sulfoxide 2437 4 ng/L 4-Hydroxy molinate 2437 7 ng/L 4-Hydroxychlorothalonil 2437 98 ng/L 4-Hydroxyhexazinone A 2437 3 ng/L Acephate 2437 10 ng/L Acetochlor 2437 10 ng/L Acetochlor oxanilic acid 2437 90 ng/L Acetochlor sulfonic acid 2437 100 ng/L Acetochlor sulfynilacetic acid 2437 176 ng/L Alachlor 2437 9 ng/L Alachlor oxanilic acid 2437 84 ng/L Alachlor sulfonic acid 2437 200 ng/L Alachlor sulfynilacetic acid 2437 169 ng/L Aldicarb 2437 8 ng/L Aldicarb sulfone 2437 20 ng/L Aldicarb sulfoxide 2437 3 ng/L Ametryn 2437 3 ng/L Asulam 2437 28 ng/L Atrazine 2437 5 ng/L Azinphos-methyl 2437 8 ng/L Azinphos-methyl oxon 2437 15 ng/L Azoxystrobin 2437 3 ng/L Bentazone 2437 10 ng/L Bifenthrin 2437 19 ng/L Bromacil 2437 6 ng/L Bromoxynil 2437 79 ng/L Butralin 2437 5 ng/L Butylate 2437 6 ng/L Carbaryl 2437 6 ng/L Carbendazim 2437 3 ng/L Carbofuran 2437 4 ng/L Carboxy molinate 2437 22 ng/L Chlorimuron-ethyl 2437 8 ng/L Chlorosulfonamide acid 2437 75 ng/L Chlorpyrifos 2437 4 ng/L Chlorpyrifos oxon 2437 4 ng/L Chlorsulfuron 2437 50 ng/L cis-Bifenthrin acid/cis-Cyhalothrin acid/cis- Tefluthrin acid 2437 86 ng/L cis-Permethrin 2437 2 ng/L Cyanazine 2437 16 ng/L Dacthal monoacid 2437 500 ng/L Dechlorofipronil 2437 4 ng/L Dechlorometolachlor 2437 2 ng/L Deiodo flubendiamide 2437 4 ng/L Deisopropyl prometryn 2437 3 ng/L Demethyl fluometuron 2437 2 ng/L Demethyl hexazinone B 2437 3 ng/L Demethyl norflurazon 2437 4 ng/L Desamino metribuzin 2437 9 ng/L Desamino-diketo metribuzin 2437 200 ng/L Desulfinylfipronil 2437 4 ng/L

Desulfinylfipronil amide 2437 9 ng/L Diazinon 2437 3 ng/L Diazinon oxon 2437 4 ng/L Dicamba 2437 500 ng/L Dichlorvos 2437 52 ng/L Dicrotophos 2437 4 ng/L Didemethyl hexazinone F 2437 10 ng/L Diflubenzuron 2437 6 ng/L Diflufenzopyr 2437 88 ng/L Diketonitrile-isoxaflutole 2437 62 ng/L Dimethenamid 2437 3 ng/L Dimethenamid oxanilic acid 2437 85 ng/L Dimethenamid SAA 2437 189 ng/L Dimethenamid sulfonic acid 2437 79 ng/L Dimethoate 2437 3 ng/L Disulfoton 2437 13 ng/L Disulfoton oxon 2437 2 ng/L Disulfoton oxon sulfone 2437 7 ng/L Disulfoton oxon sulfoxide 2437 7 ng/L Disulfoton sulfone 2437 9 ng/L Disulfoton sulfoxide 2437 4 ng/L Diuron 2437 5 ng/L EPTC 2437 206 ng/L EPTC degradate R248722 2437 4 ng/L Ethoprophos 2437 5 ng/L Etoxazole 2437 2 ng/L Famoxadone 2437 60 ng/L Fenamiphos 2437 2 ng/L Fenamiphos sulfone 2437 5 ng/L Fenamiphos sulfoxide 2437 5 ng/L Fenbutatin oxide 2437 20 ng/L Fentin 2437 16 ng/L Fipronil 2437 4 ng/L Fipronil amide 2437 9 ng/L Fipronil sulfide 2437 4 ng/L Fipronil sulfonate 2437 96 ng/L Fipronil sulfone 2437 4 ng/L Flubendiamide 2437 5 ng/L Flumetsulam 2437 17 ng/L Fluometuron 2437 3 ng/L Fonofos 2437 11 ng/L Halosulfuron-methyl 2437 22 ng/L Hexazinone 2437 3 ng/L Hexazinone Transformation Product C 2437 2 ng/L Hexazinone Transformation Product D 2437 200 ng/L Hexazinone Transformation Product E 2437 76 ng/L Hexazinone Transformation Product G 2437 22 ng/L Hydroxy didemethyl fluometuron 2437 20 ng/L Hydroxy monodemethyl fluometuron 2437 10 ng/L Hydroxyacetochlor 2437 9 ng/L Hydroxyalachlor 2437 8 ng/L Hydroxydiazinon 2437 11 ng/L Hydroxyfluometuron 2437 8 ng/L Hydroxymetolachlor 2437 2 ng/L Hydroxyphthalazinone 2437 46 ng/L Hydroxysimazine 2437 3 ng/L

Hydroxytebuthurion 2437 11 ng/L Imazamox 2437 28 ng/L Imazaquin 2437 19 ng/L Imazethapyr 2437 20 ng/L Imidacloprid 2437 11 ng/L Indoxacarb 2437 8 ng/L Isoxaflutole 2437 13 ng/L Isoxaflutole acid metabolite RPA 203328 2437 9 ng/L Kresoxim-methyl 2437 5 ng/L Lactofen 2437 3 ng/L Linuron 2437 6 ng/L Malaoxon 2437 3 ng/L Malathion 2437 6 ng/L MCPA 2437 95 ng/L Metalaxyl 2437 6 ng/L Metconazole 2437 5 ng/L Methamidophos 2437 3 ng/L Methidathion 2437 10 ng/L Methomyl 2437 3 ng/L Methomyl oxime 2437 500 ng/L Methoxyfenozide 2437 2 ng/L Methyl paraoxon 2437 19 ng/L Metolachlor 2437 9 ng/L Metolachlor hydroxy morpholinone 2437 7 ng/L Metolachlor oxanilic acid 2437 149 ng/L…