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  • Sample Receiving Hours | Ct Laboratories

    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

  • Private Well Testing | Ct Laboratories

    Private Well Water Testing CT Laboratories does not have specific testing bundles because we believe each home owner/client has different needs. We build test kits and adjust pricing accordingly . ​ Our Project Manager, Jodi Serstad , has over 20 years of experience at CT Laboratories determining individual testing needs. Her expertise extends beyond State Drinking Water requirements, and she works with local municipalities, businesses, and individuals on a daily basis. Whether you're an individual home owner, a plumber, or contractor, she can guide you to determine what testing would suit your needs the best. ​ Find her contact information here . ​ Identify your water's symptoms: ​ Go to DNR

  • Biological Testing | Ct Laboratories

    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

  • General Chemistry | Ct Laboratories

    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

  • Surface Water & Sediments | Ct Laboratories

    Surface Water & Sediments CT Laboratories LLC has extensive experience analyzing surface water, pore water, sediments and elutriates in support of multiple USACE Districts, US EPA, State and local government agency projects. Our Projects Surface Water Projects Seasonal Lakes Monitoring - USACE Kansas City District Seasonal Lakes Monitoring - USACE Louisville District TMDL Watershed Monitoring Sediment Testing Projects Mississippi and Missouri Rivers - USACE St. Paul District Waukegan Harbor, IL - USACE Chicago District Gruber's Grove Bay Dredging Typical Testing Procedures Elutriate Generation Including Standard Elutriate, Modified Elutriate, Effluent Elutriate, and State Specific Modifications Surface Water Testing Chlorophyll A, Microcystin, Pesticides, Anions, TOC/DOC, Ammonia (TKN), Metlas, TDS/TSS/TVS, BOD/COD, Phytoplankton, PAH, Cyanide, DRO/GRO, Total/ortho-phosphorus Sediment Testing Grain Size, Atterberg Limits, Specific Gravity, Bulk Density, Phosphorus, Cyanide, TOC, Organics, Pesticides, DRO/GRO, PCBs, PAH, Hexavalent Chromium See all Testing Services

  • Organics Analyses | Ct Laboratories

    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.

  • Physical and Geotechnical | Ct Laboratories

    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

  • Woman Owned | Ct Laboratories

    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

  • Testing Services | Ct Laboratories

    TESTING SERVICES CT Laboratories LLC offers a comprehensive range of environmental testing services. The matrices we test include: surface water, ground water, drinking water, soil, sludge, sediment, elutriate, and other wastes. Contact us today to learn more about our capabilities and pricing. ​ We do a lot, but we can't do it all. To provide the most comprehensive range of analytical services possible, we have established relationships with several large business laboratory networks and specialty laboratories. We work closely with these carefully chosen partners to provide our clients with consistent turnaround, high quality analytical results and compatibility in data deliverables. We maintain a register of each qualified subcontract laboratory, including their current DoD ELAP and NELAP accreditation scopes. ​ We provide test kits for private wells. View more information here . Organic Analyses CT Laboratories has two teams dedicated to the analysis of Volatile and Semi-Volatile Organic Compounds using GC, GC-MS, and HPLC Technologies to meet your low-level needs. View More Metals CT Laboratories has extensive experience in metal analyses. We maintain ICP, Flame and Furnace AA capabilities. This means we can offer you low detection limits to meet the needs of your project. View More 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. View More 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. View More Physical & 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. View More 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. View More

  • EPA/Brownfields | Ct Laboratories

    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

  • Department of Defense | Ct Laboratories

    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

  • Markets Served | Ct Laboratories

    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

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