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Drinking and Waste Water Testing We work with our clients to make fulfilling your regulatory testing requirements as easy as possible, based around your sampling schedule. Each of our clients receive a dedicated supply of coolers stocked with the appropriate certified, precleaned sample containers, chain of custody forms, and sample labels. Analytical results are reported in regulatory-required formats and provided via email or as a hardcopy. Turnaround times are adjusted for end-of-reporting period samples to ensure our clients receive their results in time to meet their compliance reporting deadlines. Typical Testing Procedures Drinking Water - Inorganics Cyanide - EPA 335.4 Fluoride - EPA 300.0 Nitrate - EPA 300.0 Nitrite - EPA 300.0 Sulfate - EPA 300.0 Drinking Water - Volatile Organic Compounds VOCs - EPA 524.2 Waste-Water and Sludge BOD, Ammonia, TKN, Phenolics Anions, Oil & Grease, Cyanide Total / Fecal Coliform Total Phosphorus, Water Extractable Phosphorus Metals, Total Recoverable Metals Pesticides, PCBs Total Suspended Solids, Total Volatile Solids Drinking Water - Inorganics (Metals) Antimony - EPA 200.9 Arsenic - EPA 200.9 Barium - EPA 200.7 Beryllium - EPA 200.7 Cadmium - EPA 200.7 Chromium - EPA 200.7 Copper - EPA 200.7 Lead - EPA 200.9 Mercury - EPA 245.2 Nickel - EPA 200.7 Selenium - EPA 200.9 Sodium - EPA 200.7 Thallium - EPA 200.9 Clients & Reporting We provide analytical results in regulatory-required formats and adjusts sample turnaround time to ensure on-time compliance reporting . All of our routine waste-water clients receive a dedicated sample bottle and cooler supply. As each set of samples arrives at the laboratory, the cooler is repacked with the appropriate sample bottles and delivered back to the client the next day. We Test Private Wells! Click here for more information. "We have a long standing working relationship with CT Labs and look forward working with them for long into the future." Satisfied client for 30+ years

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

CT Laboratories is an Environmental Testing Laboratory in Baraboo, WI. We work with individual homeowners, businesses, and cleanup efforts at the local, state, and federal level. Visit our site for a complete suite of our testing services and to find an experienced Project Manager. ABOUT About what makes CT Laboratories different... Experience cannot be overlooked. CT Laboratories LLC has been in business since 1987. We are located in the heart of the Baraboo Bluffs in Baraboo, WI. The lab was started back in the eighties as an off-shoot of the engineering firm Mid-States Associates. Today, we are locally owned and continue to grow. We are always increasing our capabilities and the locations we serve. CT Laboratories' staff is comprised of dedicated, long-term employees. Key personnel, including our Laboratory Director, Project Managers, Group Leaders and Senior Analysts have an average tenure of over 12 years with the company. We also understand that communication is the key to a successful project. Our clients are assigned a specific project manager to take care of their needs from initial project scoping and assistance with QAPP generation, to fulfilling bottle requests and verifying sample receipt through addressing technical issues and final report generation. 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. Markets Served Project Managers Quality Assurance OUR TEAM As a Small Business, many of our personnel take on more than one responsibility. We are extremely proud of our team and the expertise they bring to the laboratory. CERESS BERWANGER President & Owner Pan American Business School, 1977 Time at CT Laboratories: 22 years Ms. Berwanger has over 35 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. Learn more about our Woman-Owned Small Business Designation: Woman Owned Brett Szymanski Laboratory Director / Project Manager BA in Management & Human Resources Time at CT Laboratories: 17 years Areas of Expertise: Oversight of operations, strategic planning, monitoring QA/QC issues, personnel and workload allocations. Project Management for Department of Defense , EPA , and other high-profile projects nationwide. Organics Analysis on GC/MS. Field Sampling Consultant. Dennis Linley Business Development / Marketing BS in Wildlife Biology Time at CT Laboratories: 29 years Areas of Expertise: Sales & Marketing Specialty Testing Contract Development Project Management Client Relationships Sample Receiving & Processing Reporting Heidi Beckel Wet Chemistry & Microbiology Group Leader BS in Microbiology Time at CT Laboratories: 6 years Areas of Expertise: Microbiology sample preparation and analysis. Wet Chemistry sample preparation and analysis. Troubleshooting and optimizing instrumentation. Team management & leadership. David Berwanger VP of Operations / Information Systems Manager AS/BS in Chemistry Time at CT Laboratories: 26 years Areas of Expertise: Analytical laboratory instrumentation. Productivity/cost consulting. Environmental laboratory management. Laboratory network and instrumentation software. Jodi Serstad Project Manager Time at CT Laboratories: 23 years Areas of Expertise DNR Waste Water and Drinking Water Compliance. Local Municipalities Testing Needs - Water Treatment Plants Shipping and Receiving Hazardous Waste Disposal Independent Well Water Testing Sample Receiving and Facilities Management Field Resources Adam Zurfluh Semivolatiles & Extractions Group Leader BS in Wildlife Biology Time at CT Laboratories: 12 years Areas of Expertise: Semivolatile Organics Analysis including PCBs, Pesticides, and Explosives. Extraction of Semivolatile Organic Compounds from difficult matrices. Instrumentation & Maintenance - GC and HPLC Team management & leadership Rebecca Duranceau Quality Assurance Manager / Technical Director BS/MS in Chemistry/Medicinal Chemistry Time at CT Laboratories: 19 years Areas of Expertise: Quality Assurance & Accreditations HPLC Analysis - PAHs and Explosives Organics Analysis on GC, GC/MS LC/MS/MS Genotyping See research profile here Erik Catherman Sample Receiving / Facilities Manager Time at CT Laboratories: 5 years Areas of Expertise: Shipping and Receiving Hazardous Waste Disposal Sample Receiving and Facilities Management Client Relationships Sample Processing and disbursement to laboratory personnel Debbie Watts Administrative Assistant Time at CT Laboratories: 18 years Areas of Expertise: Accounts Receivable Human Resources / Payroll Client Relationships Create and Maintain Physical and Electronic Filing Systems Eric Korthals Senior Project Manager / Deputy Technical Director BS/MS in Aquatic Biology/Chemistry Time at CT Laboratories: 34 years Areas of Expertise: Project Management in all areas of CT Laboratories involvement. Laboratory Information Management Systems (LIMS) administration and development. Electronic Data Deliverables (EDDs) development and generation. Randy Digmann Volatiles & Metals Group Leader BS in Water Chemistry Time at CT Laboratories: 35 years Areas of Expertise: Volatile Organic Compounds analysis. Metals analysis. Instrumentation & Maintenance - GC/MS and GC. Team management & leadership

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

Industrial & Manufacturing CT Laboratories LLC has extensive experience working with Industrial and Manufacturing segments. From local to national companies, CT Laboratories works to meet the individual needs of all its clients. Who do we serve? Automotive Industry Foundry Operations Salvage Yards Regional Electric Utilities Food Industry Home Products Manufacturers Mining Operations Chemical Companies Plastic Companies Dredging Operations Printing Inks and Coatings Companies Pipeline & Petroleum Operations Paper Companies Window Companies "Jodi [a Project Manager] answered all my questions (I am not a chemist) and went out of her way to set me on the correct track in completing the quality assurance requirements required by the DNR."

Metals Analysis CT Laboratories has extensive experience in metal analyses. We maintain ICP, Cold Vapor and Furnace AA capabilities. This means we can offer you low detection limits to meet the needs of your project. Metals by GFAA Methods: EPA 200.9 EPA 7010 Analytes: Antimony Arsenic Lead Selenium Thallium Matrices: Drinking Water, Water, Solid, Wipes Hardness Methods: EPA 6010C SM 2340B Matrices: Water Mercury Methods: EPA 245.1 EPA 7470A EPA 7471B Matrices: Water, Drinking Water, Solid Hexavalent Chromium Methods: EPA 7196A Matrices: Water Metals by ICP Methods: EPA 200.7 EPA 6010C EPA 6010D Analytes: Aluminum Antimony Arsenic Barium Beryllium Boron Cadmium Calcium Chromium Cobalt Copper Iron Lead Magnesium Molybdenum Nickel Potassium Selenium Silver Sodium Strontium Sulfur Thallium Tin Vanadium Zinc Matrices: Water, Solid, Sludge, Wipes Back to Testing Services

Physical and Geotechnical CT Laboratories has been expanding into Geo Technical and Physical testing for the past several years. We have grown from sieve and grain size analyses to complex grinding and homogenization of soil for multi-incremental sampling projects. Bulk Density Soil bulk density is the ratio of the mass of dry solids to the bulk volume of the soil. The determination usually consists of drying and weighing a known volume of a soil sample. The core method is one method for determining bulk density that can be used with either re-packed or natural cores. EPA Method 310.1 Standard Methods, Method 2320B Methods of Soil Analysis. Part 1. Physical and Mineralogical Properties. 2nd Edition Flashpoint Flashpoint is determined by heating a sample at a slow, constant rate in a closed vessel and introducing a small flame. The flashpoint is the lowest temperature at which the test flame ignites the vapor above the sample. EPA Method 1010A. Grain Size Grain Size is determined by drying and separating a sample with nested sieves of increasingly smaller mesh sizes by shaking on a mechanical shaker. The percentage of pre-weighed soil sample that passes through each sieve is calculated. ASTM C136-84A, ASTM D451-85 - Standard Test Method for Particle Size Analysis of Soils. Specific Gravity Specific Gravity is the ratio of the masses of equal volumes of sludge or soil and distilled water. Specific gravity is determined by comparing the mass of a known volume of sample to the mass of an equal volume of distilled water at 4 degrees C. SM 2710F- 2011 Elutriate Test Preparation The elutriate test procedure is used to predict both dissolved and particle-associated concentration contaminants in confined disposal area effluents. This method simulates contaminant release under confined disposal conditions by combining localized sediment and water, mixing (slurrying), aerating the slurry, settling the slurry and finally decanting the supernatant water into appropriate containers for chemical testing. USACE Modified Elutriate Test D-86-4 Illinois EPA Material Analysis for Dredge and Fill Activities (Section 401) Free Liquids A representative amount of waste is placed in a 60 mesh paint filter. If any portion of the material (liquid or otherwise) passes through and drops from the filter within 5 minutes, the material is reported as containing free liquids. EPA Method 9095B. Puck Milling & Multiincremental Sampling Soils and dried and placed in a sieve until debris is removed. The sieved sample is then placed in a puck mill until a fine powder has been achieved. Multiincremental Sampling may occur prior to or after grinding depending on client requests. This procedure was developed in conjunction with the USACE and EPA Method 8330B. Total Organic Carbon (as % organic matter) The organic carbon that is converted into carbon dioxide after oxidation. SM 5310B EPA Method 415.1 EPA Method 9060A Back to Testing Services

We test for Bacteria (E. coli and Fecal Coliform) in drinking water and other matrices. 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

Acerca de Markets Served We support global environmental needs. CT Laboratories supports large scale, high profile DoD and EPA projects, Fortune 500 companies, industrial manufacturers, landfills and nationwide environmental and engineering consulting firms as well as State and municipal government agencies and individuals testing their drinking water. Our project experience covers 47 states and as far away as Korea. Click on the links below to learn more about each service. EPA/Brownfields Industrial & Manufacturing Department of Defense Landfills Drinking & Waste Water Surface Water & Sediment Let’s Work Together Get in touch so we can start working together. First Name Last Name Email Thanks for submitting! Message Send

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 .

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Reporting & EDDs CT Laboratories LLC takes special care to understand the unique needs of our clients to design custom solutions that exceed expectations. Electronic Data Deliverables (EDDs) CT Laboratories is a strong proponent of electronic data deliverables (EDDs) to reduce the time required to provide our clients with their data, while providing great flexibility in how the data are used. We are also capable of electronically providing laboratory data to third parties, such as regulatory agencies, at the client’s request. Because we have the capability to send clients data and reports electronically, we have become virtually paperless in this area at CT Laboratories. Standard Formats We routinely provide EDDs in a variety of common industry formats, as well as client-specific variations, including: Fixed-length or comma delimited ASCII text Microsoft Excel Worksheet ERPMIS EQUIS SEDD FUDSChem ADR GIS Key Adobe Portable Document Format (PDF) Individual State Program formats Level I? Level IV? Find out what the differences are here . Data Transmission CT Laboratories has several approaches currently in place to transmit electronic data to our clients. These methods include: Transmission of data via Internet email Shipment of files via virus-checked CDs Download via access to our secure FTP website. CT Laboratories has a highly capable information systems (IS) staff that is available to answer questions and assist clients with technical issues. We are keenly aware of the need to protect each client’s data from unauthorized access. CT Laboratories has a number of mechanisms in place to limit both internal and external data access to those parties that are authorized by the client or play a vital role in preparing, processing, or transmitting the data. CT Laboratories also has the ability to encrypt each EDD set using a number of protective schemes, including each application’s native password protection or commercial products, such as WinZip. For more information about our EDD service, contact Information Systems Manager, by telephone at 608.356.2760 Electronic Validation Packages CT Laboratories provides a wide variety of data report formats, including Level IV data validation packages, which contain all QC and raw data necessary for independent review and reconstruction of the analytical results. Our electronic version of the Level IV validation package has been enthusiastically received by our clients, reducing or eliminating the need for shipping and storing multi-ream paper reports. Our electronic package is an original – generated directly from our LIMS, not merely a scanned copy (with the exception of chain of custody and laboratory notebooks). Contact Like what you see? Get in touch to learn more. First Name Last Name Email Message Send Thanks for submitting!