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Shipping & Receiving Below are commonly used couriers that can ship to CT Laboratories. ​ Take a look at our Field Sampling Guide for directions on packaging your samples so they remain intact and at the correct temperature. ​ ​ UPS Fedex SpeeDee USPS From our 2021 Field Sampling Guide (pages 2-4) Join Our CSA

Organics Two dedicated teams UPLC - GC - GC/MS capabilities Decades of analyst experience Total Petroleum Hydrocarbons (TPH) Methods 8015C Modified 8015C State Specific Matrices Liquid, Solid Wisconsin Gasoline Range Organics (GRO) Methods WI GRO Matrices Liquid, Solid VOCs - including Acrolein & Acrylonitrile** Methods 8260C,D Matrices Liquid BTEX, MTBE, PVOC, Napthalene Methods EPA 8260C,D Wisconsin DNR GRO Matrices Liquid, Solid 1,4-Dioxane Methods 8270D,E - SIM Matrices Liquid, Solid TCLP Herbicides (2,4-D and 2,4,5-TP) Methods 8151A Matrices Liquid, Solid Nitroguanidine Methods Lab SOP SV030 Matrices Liquid, Solid Acrylamide Methods 8316 - by UPLC Matrices Liquid Diesel Range Organics (DRO), Oil Range Organics (ORO), and Residual Range Organics (RRO) Methods 8015C Matrices Liquid, Solid VOCs - Standard or Project-Specific List** Methods 8260C,D Matrices Liquid, Solid VOCs - Low Level Analysis** Methods 8260C,D Matrices Liquid, Solid SVOCs - Standard or Project-specific List** Methods 8270D,E 8270D,E - SIM Matrices Liquid, Solid, Waste PCBs Methods 8082A Matrices Liquid, Solid, Oil, Wipes Explosives Methods 8330B Matrices Liquid, Solid Dissolved Gases (Methane, Ethane, Ethene) Methods RSK-175 Matrices Liquid Wisconsin Diesel Range Organics (DRO) Methods WI DRO Matrices Liquid, Solid VOCs - including 2-Chloroethyl vinyl ether** Methods 8260C,D Matrices Liquid VOCs - SDWA List** Methods EPA 524.2 Matrices Drinking Water Polyaromatic Hydrocarbons (PAHs) Methods 8270D,E 8270D,E - SIM Matrices Liquid, Solid, Waste Chlorinated Pesticides Methods 8081B Matrices Liquid, Solid Nitrocellulose Methods EPA 9056M Matrices Liquid, Solid Dissolved Gases (Carbon Dioxide) Methods Modified RSK-175 Matrices Liquid Back to all Testing Services ** Choosing the appropriate test 1. Total Petroleum Hydrocarbons (TPH) can refer to numerous test methods and the analysis of many different Petroleum Hydrocarbons and/or boiling point ranges. If you are unsure which TPH range and/or test you need performed, please contact a CT Laboratories Project Manager. ​ 2. Volatile Organic Compounds (VOCs) - There are numerous methods, lists, and sampling options associated with VOCs. The required sampling container and hold times will be dependent on the method specified, State in which the sample is collected and/or the regulatory program being followed. If you are unsure which container should be used, please contact a CT Laboratories Project Manager.

Landfills CT Laboratories LLC has over 30 years of experience providing analytical support for landfills in Wisconsin and nationwide, including groundwater monitoring, leachate and compost/biopile testing. Specialty services include low level VOC analyses (Vinyl Chloride down to 0.02 ppb) and custom trend and exceedance reports. WE DO TCLP, SPLP, and ASTM LEACHATES! We serve all types of landfills Major Commercial Solid / Hazardous Waste Landfills Multiple National / Regional Companies​ Commercial Landfill Recycling / Recovery Companies Construction & Demolition Landfills Municipal Landfills City of Adams Landfill​ Boscobel Landfill Monroe County Landfill Dane County Landfill Sauk County Landfill West Allis Landfill Columbia County Landfill Juneau County Landfill Federal Oxford Federal Landfill​ Active Military Installations Ft. McCoy​ Former DoD Facility Landfills ​Badger AAP Landfill​​ Pueblo Depot Landfill / Roll-Offs Lockbourne AFB Landfill Anniston AAD C&D Landfill Fort Custer Dump Site 500 Landfill sites in Wisconsin currently require active monitoring. Let us help you meet your regulatory needs!

General Chemistry At CT Laboratories, our General Chemistry (or wet-chem) department is one of our busiest. We employ experienced chemists that are well versed in the methods that they are responsible for. There are many short hold time analyses in this department. Our staff works around a detailed time management schedule to make sure all results are generated accurately and efficiently. ​ Please see our sample receiving hours Alkalinity (carbonate, bicarbonate) Method EPA 310.2 SM 2320B Matrices Water BOD - 5 Day (total, soluble, carbonaceous) Method SM 5210B Matrices Water Cyanide (reactive) Method SW-846 Ch. 7.3 Matrices Water, Solid Hardness Method EPA 6010C SM 2340B Matrices Water Nitrogen, Organic Total Method EPA 350.1 EPA 351.2 Matrices Water, Solid Oil & Grease - HEM (with SGT) Method EPA 1664A Matrices Water Phosphorus Method EPA 365.1 EPA 365.4 Matrices Water, Solid Solids, Settleable Method SM 2540F Matrices Water Solids, Percent Method EPA 8000C SM 2540G Matrices Solid Solids, Volatile Suspended Method EPA 160.2 EPA 160.4 SM 2540D Matrices Water Sulfide, Reactive Method ASTM D4978 Matrices Water, Soil Ammonia Nitrogen Method EPA 350.1 SM4500-NH3H Matrices Water, Solid COD Method EPA 410.4 EPA 5220D Matrices Water Flashpoint Method EPA 1010A Matrices Water, Solid Hexavalent Chromium Method EPA 7196A Matrices Water Nitrogen, Total Method EPA 351.2 EPA 300.0 EPA 9056A Matrices Water, Solid Organic Carbon, Total Method EPA 415.1 EPA 9060A Lloyd Kahn Matrices Water, Solid Phosphate Method EPA 9056A Matrices Solid Solids, Total Dissolved Method EPA 160.1 SM 2540C Matrices Water Solids, Total Suspended Method SM 2540D Matrices Water Specific Gravity Method SM 2710F Matrices Water, Solid Anions (bromide, chloride, fluoride, nitrate, nitrite, ortho-phosphate, sulfate) Method EPA 300.0 EPA 9056A SM 4110B Matrices Water, Solid Cyanide (total) Method EPA 335.4 EPA 9012B Matrices Water Free Liquids Method EPA 9095B Matrices Solid Nitrate + Nitrite Method EPA 353.2 Matrices Water, Solid Nitrogen, Total Kjeldahl Method EPA 351.2 Matrices Water, Solid pH Method EPA 150.2 EPA 9040C EPA 9041A SM 4500H+B EPA 9045D Matrices Water, Solid Residue, Total Method SM 2540C Matrices Water Solids, Total Method SM 2540B Matrices Water Solids, Total Volatile Method EPA 160.4 SM 2540D Matrices Water, Solid Sulfide, Total Method EPA 376.1 EPA 9034 Matrices Water Back to Testing Services

Biological Testing CT Laboratories offers a wide range of biological testing services. We also offer specialty services like Microcystin analyses, Heterotrophic plate counts, and Algal species composition. Our chemists are experienced, and can handle large volumes of samples throughout the busy testing seasons of the year. ​ Please see our sample receiving hours Chlorophyll A Internal Procedure adapted from SM 10200 H - 2011 E. coli SM 9221 Fecal Coliform & Total Coliform SM 9222D SM 9223 Heterotrophic Plate Count SM 9215D Back to Testing Services

Sample Receiving Hours Standard Samples: Monday - Friday: 8:00 am - 5:00 pm Saturdays: Requires prior notification and approval from Project Management ​ Total and Fecal COLIFORM Samples: Monday - Thursday: 8:00 am - 5:00 pm Friday: 8:00 am - Noon ​ Nitrate and BOD Samples: Monday - Thursday: 8:00 am - 5:00 pm Friday: 8:00 am - 2:00 pm ​ Holidays & Closures (2022) New Year's Day (2022): Saturday, January 1st (observed Friday, December 31st) Closed Martin Luther King Jr Day: Monday, January 17th Open President's Day: Monday, February 21st Open Memorial Day: Monday, May 30th Closed Juneteenth: Sunday, June 19th (Observed Monday, June 20th) Open Independence Day: Monday, July 4th Closed Labor Day: Monday, September 5th Closed Indigenous People's Day (also observed as Columbus Day): Monday, October 10th Open Veteran's Day: Friday, November 11th Open Thanksgiving: Thursday, November 24th Closed Thursday & Friday Christmas Day: Sunday, December 25th (Observed Monday, December 26th) Closed New Year's Day (2023): Sunday, January 1st (Observed Monday, January 2nd) Closed

Department of Defense Services CT Laboratories is a WOSB providing analytical support to hundreds of DoD projects nationwide. The laboratory is DoD ELAP accredited in compliance with the DoD Quality Systems Manual (QSM). We hold current analytical services contracts with USACE Louisville, Omaha and Baltimore Districts and perform numerous methods in support of DoD projects, such as 8330B explosives, nitroguanidine and nitrocellulose and chemical warfare degradation products. Testing Services United States DoD Branches Served Coast Guard Projects 12-State Due Diligence Lead Survey Ft. Myers, FL Lake Michigan Facilities – MI Lake Michigan Facilities – WI CGC Yorktown, VA CGC Ouachita, TN District 9 Dredging Projects USACE/ACM Projects Aberdeen Proving Ground, MD Redstone Arsenal, AL Pueblo Chemical Depot, CO Chicago District - Sediment/Elutriate Badger AAP, WI Ft. Leonard Wood, MO Savanna Army Depot, IL Baltimore District - Ft. Belvoir Support Kansas AAP, KS Ft. Meade/Tipton Airfield, MD Ravenna AAP, OH St. Paul District - Mississippi River Sediment Ft. Wingate, NM Iowa AAP, IA Ft. Hamilton, NY Omaha District - Lincoln Atlas Missile Sites Jefferson Proving Ground, IN Ft. Polk, LA Camp Reynolds, PA KC District – MO, KS, IA Water Quality Kinchloe AFB, MI Anniston AAP, AL Picatinny Arsenal, NJ Louisville District – MI FUDs Radford AAP, VA Navy Projects Naval Weapons Station Yorktown, VA Philadelphia Naval Shipyard, PA Reserve Center La Crosse, WI NSWC Indian Head, MD Craney Island Naval Reservation, VA Former NOS Forest Park, IL NAS JRB Willow Grove, PA Former Nansemond Ordnance Depot, VA Thurmont Navy Support Facility, MD NAS JRB New Orleans, LA JEB Little Creek, VA National Guard Projects ANG SE facilities: MS / AL / FL MT / ID ANG facilities General Mitchell, WI Selfridge ANG, MI 178th Fighter Wing, OH 177th Fighter Wing, NJ Twin Cities ANG, MN Volk Field CRTC, WI Alpena ANG, MI Sioux City ANG, IA Hulman Regional ANG, IN Truax Field, WI Air Force/AFCEE Projects Nationwide Soil Survey (42 AFBs) King Salmon, AK Seymour Johnson AFB, NC Tinker AFB, OK Tyndall AFB, FL McGuire AFB, NJ Wright-Patterson AFB, OH McConnell AFB, KS Kunsan AFB, Korea Grand Forks AFB, ND FE Warren AFB, WY England AFB, LA

Field Resources Download necessary forms here! ​ **ALL SAMPLES MUST HAVE A COC ATTACHED*** 1 Laboratory Field Guide 2021 This is a resource that outlines all of our tests, shipping requirements, how to fill out the COC, and specific sampling/bottling requirements for each test and matrix. DOWNLOAD PDF 2 Waste Water Chain of Custody Use this form for BOD, TSS, pH, Fecal Coliform, Chloride, Nitrate + Nitrite, Phosphorous, Ammonia Nitrogen, TKN, and Lab Filtration Tests. DOWNLOAD PDF 3 UST Chain of Custody Use this form for DRO, GRO, GRO/PVOC, Lead, Cadmium, VOC 8260, PAH, and % Solids. DOWNLOAD PDF 4 Blank Chain of Custody Use this form for any other testing not mentioned above. DOWNLOAD PDF 5 Terms & Conditions The Terms and Conditions can also be found on the back of all COC forms. DOWNLOAD PDF Let's Work Together Questions? Contact a Project Manager at 608-356-2760 or via email at information@ctlaboratories.com .

Specialty Testing In addition to our routine analytical capabilities, CT Laboratories LLC offers specialty testing services and can help develop new procedures to suit your needs. ​ These analyses support various environmental regulatory programs, including: Resource Conservation and Recovery Act (RCRA) Comprehensive Environmental Response, Compensation, and Liability Act (CERCLA) Superfund Clean Water Act (CWA) National Pollution Discharge Elimination System (NPDES) Safe Drinking Water Act (SDWA) Federal Program Support: Army Corps, National Guard, Coast Guard, Navy, Air Force Various State Regulatory Programs: Underground Storage Tank (UST), Landfill Monitoring, etc. Total, Fine and Coarse Lead by MDEQ SOP 213 This procedure is typically performed for EPA projects in order to characterize the lead fractionation of the soil (i.e., the fine & coarse fractions). ​ The Michigan Lead procedure involves sieving an air-dried soil sample into the coarse fraction (particle size > 250-µm) and the fine fraction (particle size < 250-µm). The % coarse and % fine values are determined via calculation. The coarse and fine fractions are then analyzed for lead via EPA 6010C. Finally, the total lead concentration is calculated via a weighted average of the coarse lead fraction and the fine lead fraction. Tissue Analysis: Pesticides, PCBs, Metals, Percent Lipids These internal methods are not certified by our accreditation agencies. These internal methods have been developed to fulfill client-specific needs and projects. Thiodiglycol and other Chemical Warfare Agent degradation products This method is designed to follow procedures developed in-house and to meet the requirements of EPA SW-846 method 8000 for ground water, surface water, and waste water. ​ A UPLC is employed in conjunction with a UV detector. Flame Retardants: PBB, HBB This method is designed to follow procedures and QC requirements found in EPA SW-846 method 8081B in order to determine quantities of HBB and PBB compounds found in a variety of sample matrices. HBB - Hexabromobenzene PBB - Firemaster BP-6 2,4- and 4,4- DDD, DDE, and DDT Breakdown products of DDT can be quantified using the 8081B methodology for pesticides. 1,4-Dioxane by 8270-SIM A Solid Phase Extraction methodology was developed for liquid samples using 8270D/E guidelines. The internal soil extraction method references 8000D. Invitro Bioaccessibility (IVBA) of Lead Internal method PR009 developed at request of EPA using SW846 1340 as a reference. ​ Contact us for more information. Back to Testing Services

Quality Assurance Quality is not a given or an afterthought at CT Laboratories. Our quality assurance program is designed to ensure legally defensible data. From numerous performance evaluation studies, NELAP and other individual State audits, as well as our in-house program, we continually monitor our quality to ensure our clients get the best results possible. Certifications CT Laboratories LLC is DoD ELAP accredited and maintains national accreditation through multiple NELAP certifications. We hold state certifications in several of the country’s most stringent programs. The following organizations have endorsed CT Laboratories’ quality. These endorsements are granted on a facility specific basis through accreditation and/or certification and have been obtained as required for client projects. Many other state and federal agencies recognize reciprocal certification based on these national and state accreditations. ​ Click on the icons below to view certifications and permits. States with reciprocity/few or no requirements: Alabama Colorado Hawaii Idaho Indiana Michigan Mississippi Missouri Montana Nebraska New Mexico Ohio Rhode Island South Dakota Tennessee Vermont Wyoming Security: Contact our QA Team For more specific information about state program requirements or CT Laboratories' state certifications, contact Rebecca Duranceau (QA Manager) via email or phone. Rebecca Duranceau Mail Phone QA@ctlaboratories.com 608.356.2760

EPA, Brownfields, and Superfunds we have supported CT Laboratories has extensive experience providing analytical support for EPA emergency response, Superfund and Brownfields projects nationwide, including those listed below. Click here to go to EPA website EPA Regions Served Region III Washington, D.C. Maryland Virginia (direct contract) Region IV Illinois Indiana Michigan Minnesota Ohio Wisconsin Region VIII Colorado Montana North Dakota South Dakota Utah Wyoming Superfund Sites Velsicol Superfund Site, MI Jacobsville Superfund Site, IN Watertown Tire Fire, WI Washington Navy Yard Superfund Site, DC River Raisin Site, MI West Vermont Groundwater Contamination Site, IN Wisconsin Die Cast, WI Camelot Superfund, ND Eagle Zinc Site, IL Oconomowoc Electroplating, WI Flandreau Pesticides, SD Chapter Two Drum Site, WI ERRS OMC Plant 2 Site, IL Indiana Harbor, IN Metallics, WY Brownfields Madison, WI Redevelopment / Icke Landfill Ashland, WI -- Chicago Iron Site Neenah, WI -- Gateway Redevelopment Site Delavan, WI -- Ann Street Railroad Cooridor Remediation Cheyenne, WY -- Multiple Phase I and II Assessment Sites Janesville, WI -- River Street Revitalization Baraboo, WI -- 8th Street Redevelopment Manitowoc, WI -- Heresite Protection Coatings Marinette, WI -- Phase I and II Assessments Racine, WI -- Walker Manufacturing + 6 Sites

A Woman Owned Small Business A Women-Owned Small Business (WOSB) is a small business concern that is at least 51 percent directly and unconditionally owned and controlled by one or more women who are citizens (born or naturalized) of the United States. ​ About the Owner: ​ Ms. Berwanger has over 30 years of experience in the environmental laboratory industry, in a variety of financial, technical, regulatory, marketing, project management, sales and managerial positions. Her expertise includes a thorough knowledge of Federal contracting requirements and business management aspects of the laboratory. She has extensive experience in laboratory operations, project management, training, client service, and sales and marketing. Ms. Berwanger has a proven track record of targeting and capturing significant contract opportunities and developing long-standing, mutually beneficial teaming partnerships and client relationships. ​ Not just a figurehead: We are proud that over half of CT Laboratories staff and analysts are women. Our Certifications Woman-Owned Business Enterprise WBE Cert Woman-Owned Small Business WOSB Cert We are part of the Women-Owned Small Business Federal Contracting Program... Get in Touch 608-356-2760 information@ctlaboratories.com