Licensed asbestos, lead-based paint, mold, radon & water testing across Chicago and the surrounding 100 miles. AIHA-accredited lab. Call 331-462-2711.

Need certified lead paint testing near you? US Environmental offers fast XRF inspections, EPA-compliant reports, and expert lead paint services for Chicago homes and businesses. Places where lead may be found Apple Sauce Bridges: Nationwide Clinics & Healthcare Centers Cinnamon What Manufacturers Are Safe to Consume Day Care Centers Day Care Centers must test their water for lead to be DCFS licensed. Ask your Center to see their approval letter and latest test results! Lead Dust ~ Hardwood Flooring Lead dust inhalation is the leading source of lead exposure for young children. As they spend a majority of the time on the floor. The lead dust is transferred from their hands into body via their mouth and nose (facial contact). Lead in Soil Lead may be found in soil along the drip-line of dwellings with lead siding. Also in play areas with equipment painted with lead containing paint. It's important to test soil. City Water Supply: Chicago, IL City Water Supply: Flint, MI Paint: Exterior and Interior Toys: Painted, Collectables Imported and Foreign Made Products don't always have the same regulations for lead-containing materials in paint and metal as the USA. Blog Ph: 630-915-9434 Request Quote

Discover licensed asbestos building inspections, lead-based paint and sampling, licensed radon testing and mitigation, and water assessments in Bartlett, IL. Protect your home with expert testing & mitigation services today! Air Asbestos Lead Mold Radon Water Most homes in Bartlett have never been tested for radon - Schedule your certified inspection today." Radon Is a Serious Risk in Bartlett, Illinois Illinois is a high radon zone, and homes in Bartlett are at risk, due to soil conditions and construction methods. Why Illinois Has Some of the Highest Radon Levels in the U.S. Illinois is classified as a Zone 1 Radon State, meaning a high probability of indoor radon levels exceeding 4.0 pCi/L. What Is Radon? (Scientific Overview) Radon is a radioactive noble gas formed from the decay of uranium in soil. It infiltrates structures through: Foundation cracks Sump pits Utility penetrations Crawlspaces and slab joints Once inside, radon accumulates—especially in basements and lower levels. Radon may be detected in elevated levels in up to the third level of a dwelling. Licensed Radon Testing & Mitigation Services in Bartlett, IL Trusted Radon Testing in Bartlett, Illinois If you're searching for licensed, insured environmental testing in Bartlett, Illinois, with experience conducting tests that you need! Look no further: US Environmental Testing is recognized as a leading authority in radon testing, radon detection, and radon mitigation across Illinois, serving residential, commercial, government, healthcare, and educational facilities. Why Choose Us in Bartlett, Illinois “We are Illinois’ leading environmental testing authority (2026) operating under EPA, ANSI, HUD, and OSHA-aligned protocols.” Trusted across Illinois. We operate under strict adherence to protocols outlined by the following Federal Agencies: American National Standard Institute (ANSI) HUD Environmental Protocols Illinois Emergency Management Agency, Department of Homeland Security (IEMA) Indoor Environments Association (IEA) National Emission Standards for Hazardous Air Pollutants (NESHAP) OSHA & NIOSH Safety Frameworks United States, Environmental Protection Agency (USEPA) National Institute for Occupational Safety and Health (NIOSH) United States Occupational Safety and Health Administration (OSHA) Our Services in Bartlett, Illinois Asbestos Containing Materials (ACM) - Building Inspections Residential Asbestos Containing Materials (ACM) - Building Inspections Real Estate Asbestos Containing Materials (ACM) - Building Inspections Commercial Asbestos Containing Materials (ACM) - Building Inspections Lead-Based-Paint Risk Assessment & Lead-Based-Paint Sampling Residential Fungal Spore 'Mold' Risk Assessments Real Estate Fungal Spore 'Mold' Inspections Commercial Fungal Spore 'Mold' Risk Assessments Commercial Fungal Spore 'Mold' Inspections Residential Radon Testing Real Estate Radon Testing Commercial Radon Testing Industrial Radon Testing Daycare Radon Testing, Residential & Commercial Radon Mitigation System Design Post-Mitigation Radon Testing Serving Bartlett, Illinois and Nearby Areas & Regions: Service Areas We proudly serve Chicago, Illinois and surrounding suburbs and EPA Regions What Makes Us Different Compliance-First Approach We don't just test - we ensure full regulatory alignment. Scientific Precision Advanced monitoring equipment and calibrated data analysis. Multi-Sector Expertise Residential Capital Improvement (CI) Commercial Education Government Healthcare Industrial Illinois Radon Laws & Compliance (2026) Real Estate Transactions: Radon disclosure is required Testing is strongly recommended during inspection Schools: Illinois law recommends testing every 5 years Results often reported to state authorities Daycares: Required at time of initial DCFS license issuance and every 3 years for compliance (DCFS) Asbestos Asbestos inspection Bartlett, IL Asbestos survey commercial Bartlett, IL Asbestos testing near me Bartlett, IL Mold Mold inspection Bartlett, IL Black mold testing Bartlett, IL Basement mold inspection Bartlett, IL Lead Lead paint testing Bartlett, IL Lead risk assessment Bartlett, IL Lead inspection daycare Bartlett, IL Schedule Radon Testing in Bartlett, Illinois 📞 630-915-9434 📧 info@usenvi.com 🌐 www.usenvi.com "Fast. Accurate. Experienced. Knowledgeable." Blog Ph: 630-915-9434 Request Quote

Discover licensed asbestos building inspections, lead-based paint and sampling, licensed radon testing & mitigation, and water assessments in St. Charles, IL. Protect your home with expert testing & mitigation services today! Air Asbestos Lead Mold Radon Water Most homes in St. Charleshave never been tested for radon - Schedule your certified inspection today." Radon Is a Serious Risk in St. Charles, Illinois Illinois is a high radon zone, and homes in St. Charles are at risk, due to soil conditions and construction methods. Why Illinois Has Some of the Highest Radon Levels in the U.S. Illinois is classified as a Zone 1 Radon State, meaning a high probability of indoor radon levels exceeding 4.0 pCi/L. What Is Radon? (Scientific Overview) Radon is a radioactive noble gas formed from the decay of uranium in soil. It infiltrates structures through: Foundation cracks Sump pits Utility penetrations Crawlspaces and slab joints Once inside, radon accumulates—especially in basements and lower levels. Radon may be detected in elevated levels in up to the third level of a dwelling. Licensed Radon Testing & Mitigation Services in St. Charles, IL Trusted Radon Testing in St. Charles, Illinois If you're searching for licensed, insured environmental testing in St. Charles, Illinois, with experience conducting tests that you need! Look no further: US Environmental Testing is recognized as a leading authority in radon testing, radon detection, and radon mitigation across Illinois, serving residential, commercial, government, healthcare, and educational facilities. Why Choose Us in St. Charles, Illinois “We are Illinois’ leading environmental testing authority (2026) operating under EPA, ANSI, HUD, and OSHA-aligned protocols.” Trusted across Illinois. We operate under strict adherence to protocols outlined by the following Federal Agencies: American National Standard Institute (ANSI) HUD Environmental Protocols Illinois Emergency Management Agency, Department of Homeland Security (IEMA) Indoor Environments Association (IEA) National Emission Standards for Hazardous Air Pollutants (NESHAP) OSHA & NIOSH Safety Frameworks United States, Environmental Protection Agency (USEPA) National Institute for Occupational Safety and Health (NIOSH) United States Occupational Safety and Health Administration (OSHA) Our Services in St. Charles, Illinois Asbestos Containing Materials (ACM) - Building Inspections Residential Asbestos Containing Materials (ACM) - Building Inspections Real Estate Asbestos Containing Materials (ACM) - Building Inspections Commercial Asbestos Containing Materials (ACM) - Building Inspections Lead-Based-Paint Risk Assessment & Lead-Based-Paint Sampling Residential Fungal Spore 'Mold' Risk Assessments Real Estate Fungal Spore 'Mold' Inspections Commercial Fungal Spore 'Mold' Risk Assessments Commercial Fungal Spore 'Mold' Inspections Residential Radon Testing Real Estate Radon Testing Commercial Radon Testing Industrial Radon Testing Daycare Radon Testing, Residential & Commercial Radon Mitigation System Design Post-Mitigation Radon Testing Serving St. Charles, Illinois and Nearby Areas & Regions: Service Areas We proudly serve St. Charles, Illinois and surrounding suburbs and EPA Regions What Makes Us Different Compliance-First Approach We don't just test - we ensure full regulatory alignment. Scientific Precision Advanced monitoring equipment and calibrated data analysis. Multi-Sector Expertise Residential Capital Improvement (CI) Commercial Education Government Healthcare Industrial Illinois Radon Laws & Compliance (2026) Real Estate Transactions: Radon disclosure is required Testing is strongly recommended during inspection Schools: Illinois law recommends testing every 5 years Results often reported to state authorities Daycares: Required at time of initial DCFS license issuance and every 3 years for compliance (DCFS) Asbestos asbestos inspection St. Charles, IL asbestos survey commercial St. Charles, IL asbestos testing near me St. Charles, IL Mold mold inspection St. Charles, IL black mold testing St. Charles, IL basement mold inspection St. Charles, IL Lead lead paint testing St. Charles, IL lead risk assessment St. Charles, IL lead inspection daycare St. Charles, IL Schedule Radon Testing in St. Charles, Illinois 📞 630-915-9434 📧 info@usenvi.com 🌐 www.usenvi.com "Fast. Accurate. Experienced. Knowledgeable." Blog Ph: 630-915-9434 Request Quote

Licensed asbestos, lead-based paint, mold, radon & water testing across Chicago and the surrounding 100 miles. AIHA-accredited lab. Call 331-462-2711 Air Asbestos Lead Mold Radon Water Most homes in Rolling Meadows have never been tested for radon - Schedule your certified inspection today." Radon Is a Serious Risk in Rolling Meadows, Illinois Illinois is a high radon zone, and homes in Rolling Meadows are at risk, due to soil conditions and construction methods. Why Illinois Has Some of the Highest Radon Levels in the U.S. Illinois is classified as a Zone 1 Radon State, meaning a high probability of indoor radon levels exceeding 4.0 pCi/L. What Is Radon? (Scientific Overview) Radon is a radioactive noble gas formed from the decay of uranium in soil. It infiltrates structures through: Foundation cracks Sump pits Utility penetrations Crawlspaces and slab joints Once inside, radon accumulates—especially in basements and lower levels. Radon may be detected in elevated levels in up to the third level of a dwelling. Licensed Radon Testing & Mitigation Services in Rolling Meadows, IL Trusted Radon Testing in Rolling Meadows, Illinois If you're searching for licensed, insured environmental testing in Rolling Meadows, Illinois, with experience conducting tests that you need! Look no further: US Environmental Testing is recognized as a leading authority in radon testing, radon detection, and radon mitigation across Illinois, serving residential, commercial, government, healthcare, and educational facilities. Why Choose Us in Rolling Meadows, Illinois “We are Illinois’ leading environmental testing authority (2026) operating under EPA, ANSI, HUD, and OSHA-aligned protocols.” Trusted across Illinois. We operate under strict adherence to protocols outlined by the following Federal Agencies: American National Standard Institute (ANSI) HUD Environmental Protocols Illinois Emergency Management Agency, Department of Homeland Security (IEMA) Indoor Environments Association (IEA) National Emission Standards for Hazardous Air Pollutants (NESHAP) OSHA & NIOSH Safety Frameworks United States, Environmental Protection Agency (USEPA) National Institute for Occupational Safety and Health (NIOSH) United States Occupational Safety and Health Administration (OSHA) Our Services in Rolling Meadows, Illinois Asbestos Containing Materials (ACM) - Building Inspections Residential Asbestos Containing Materials (ACM) - Building Inspections Real Estate Asbestos Containing Materials (ACM) - Building Inspections Commercial Asbestos Containing Materials (ACM) - Building Inspections Lead-Based-Paint Risk Assessment & Lead-Based-Paint Sampling Residential Fungal Spore 'Mold' Risk Assessments Real Estate Fungal Spore 'Mold' Inspections Commercial Fungal Spore 'Mold' Risk Assessments Commercial Fungal Spore 'Mold' Inspections Residential Radon Testing Real Estate Radon Testing Commercial Radon Testing Industrial Radon Testing Daycare Radon Testing, Residential & Commercial Radon Mitigation System Design Post-Mitigation Radon Testing Serving Rolling Meadows, Illinois and Nearby Areas & Regions: Service Areas We proudly serve Rolling Meadows, Illinois and surrounding suburbs and EPA Regions What Makes Us Different Compliance-First Approach We don't just test - we ensure full regulatory alignment. Scientific Precision Advanced monitoring equipment and calibrated data analysis. Multi-Sector Expertise Residential Capital Improvement (CI) Commercial Education Government Healthcare Industrial Illinois Radon Laws & Compliance (2026) Real Estate Transactions: Radon disclosure is required Testing is strongly recommended during inspection Schools: Illinois law recommends testing every 5 years Results often reported to state authorities Daycares: Required at time of initial DCFS license issuance and every 3 years for compliance (DCFS) Asbestos Asbestos inspection Rolling Meadows, IL Asbestos survey commercial Rolling Meadows, IL Asbestos testing near me Rolling Meadows, IL Mold Mold inspection Rolling Meadows, IL Black mold testing Rolling Meadows, IL Basement mold inspection Rolling Meadows, IL Lead Lead paint testing Rolling Meadows, IL Lead risk assessment Rolling Meadows, IL Lead inspection daycare Rolling Meadows, IL Schedule Radon Testing in Rolling Meadows, Illinois 📞 630-915-9434 📧 info@usenvi.com 🌐 www.usenvi.com "Fast. Accurate. Experienced. Knowledgeable." Blog Ph: 630-915-9434 Request Quote

Licensed asbestos, lead-based paint, mold, radon & water testing across Chicago and the surrounding 100 miles. AIHA-accredited lab. Call 630-915-9434. 我们如何帮助您？ Open Monday to Saturday 8:00 am to 7:00 pm (ET) Emails and voicemails monitored daily. Hours of operation 联系我们 名 姓 电子邮件 写一个信息 提交 感谢提交！ Blog Ph: 630-915-9434 Request Quote

Licensed asbestos, lead-based paint, mold, radon & water testing across Chicago and the surrounding 100 miles. AIHA-accredited lab. Call 331-462-2711 Asbestos Lead mold radon water National standards, compliant care, precise results for air, asbestos, lead-paint, soil, and water —US Environmental. Blog Ph: Call 331-462-2711 Request Quote

Licensed asbestos, lead-based paint, mold, radon & water testing across Chicago and the surrounding 100 miles. AIHA-accredited lab. Call 630-915-9434. Air Asbestos Lead Mold Radon Water Illinois Radon Testing & Mitigation Authority (2026) US Environmental Testing Radon Is a Serious Risk in Addison, Illinois Illinois is a high radon zone, and homes in Addison are at risk, due to soil conditions and construction methods. Why Illinois Has Some of the Highest Radon Levels in the U.S. Illinois is classified as a Zone 1 Radon State, meaning a high probability of indoor radon levels exceeding 4.0 pCi/L. What Is Radon? (Scientific Overview) Radon is a radioactive noble gas formed from the decay of uranium in soil. It infiltrates structures through: Foundation cracks Sump pits Utility penetrations Crawlspaces and slab joints Once inside, radon accumulates—especially in basements and lower levels. Radon may be detected in elevated levels in up to the third level of a dwelling. Licensed Radon Testing & Mitigation in Addison, IL Trusted Radon Testing in Addison, Illinois If you're searching for licensed, insured environmental testing in Addison, Illinois, with experience conducting tests that you need! Look no further: US Environmental Testing is recognized as a leading authority in radon testing, radon detection, and radon mitigation across Illinois, serving residential, commercial, government, healthcare, and educational facilities. Why Choose Us in Addison, Illinois “We are Illinois’ leading environmental testing authority (2026) operating under EPA, ANSI, HUD, and OSHA-aligned protocols.” Trusted across Illinois. We operate under strict adherence to protocols outlined by the following Federal Agencies: American National Standard Institute (ANSI) HUD Environmental Protocols Illinois Emergency Management Agency, Department of Homeland Security (IEMA) Indoor Environments Association (IEA) National Emission Standards for Hazardous Air Pollutants (NESHAP) OSHA & NIOSH Safety Frameworks United States, Environmental Protection Agency (USEPA) National Institute for Occupational Safety and Health (NIOSH) United States Occupational Safety and Health Administration (OSHA) Our Services in Addison, Illinois Asbestos Containing Materials (ACM) - Building Inspections Residential Asbestos Containing Materials (ACM) - Building Inspections Real Estate Asbestos Containing Materials (ACM) - Building Inspections Commercial Asbestos Containing Materials (ACM) - Building Inspections Lead-Based-Paint Risk Assessment & Lead-Based-Paint Sampling Residential Fungal Spore 'Mold' Risk Assessments Real Estate Fungal Spore 'Mold' Inspections Commercial Fungal Spore 'Mold' Risk Assessments Commercial Fungal Spore 'Mold' Inspections Residential Radon Testing Real Estate Radon Testing Commercial Radon Testing Industrial Radon Testing Daycare Radon Testing, Residential & Commercial Radon Mitigation System Design Post-Mitigation Radon Testing Serving Addison, Illinois and Nearby Areas & Regions: Service Areas We proudly serve Chicago, Illinois and surrounding suburbs and EPA Regions Most homes in Addison have never been tested for radon - Schedule your certified inspection today." What Makes Us Different Compliance-First Approach We don't just test - we ensure full regulatory alignment. Scientific Precision Advanced monitoring equipment and calibrated data analysis. Multi-Sector Expertise Residential Capital Improvement (CI) Commercial Education Government Healthcare Industrial Illinois Radon Laws & Compliance (2026) Real Estate Transactions: Radon disclosure is required Testing is strongly recommended during inspection Schools: Illinois law recommends testing every 5 years Results often reported to state authorities Daycares: Required at time of initial DCFS license issuance and every 3 years for compliance (DCFS) Asbestos Asbestos inspection Addison, IL Asbestos survey commercial Addison, IL Asbestos testing near me Addison, IL Mold Mold inspection Addison, IL Black mold testing Addison, IL Basement mold inspection Addison, IL Lead Lead paint testing Addison, IL Lead risk assessment Addison, IL Lead inspection daycare Addison, IL Schedule Radon Testing in Addison, Illinois 📞 630-915-9434 📧 info@usenvi.com 🌐 www.usenvi.com "Fast. Accurate. Experienced. Knowledgeable." Blog Ph: 630-915-9434 Request Quote

Licensed asbestos, lead-based paint, mold, radon & water testing across Chicago and the surrounding 100 miles. AIHA-accredited lab. Call 630-915-9434. Air Asbestos Lead Mold Radon Water Most homes in Lombard have never been tested for radon - Schedule your certified inspection today." Illinois Radon Testing & Mitigation Authority (2026) US Environmental Testing Radon Is a Serious Risk in Lombard, Illinois Illinois is a high radon zone, and homes in Lombard are at risk, due to soil conditions and construction methods. Why Illinois Has Some of the Highest Radon Levels in the U.S. Illinois is classified as a Zone 1 Radon State, meaning a high probability of indoor radon levels exceeding 4.0 pCi/L. What Is Radon? (Scientific Overview) Radon is a radioactive noble gas formed from the decay of uranium in soil. It infiltrates structures through: Foundation cracks Sump pits Utility penetrations Crawlspaces and slab joints Once inside, radon accumulates—especially in basements and lower levels. Radon may be detected in elevated levels in up to the third level of a dwelling. Licensed Radon Testing & Mitigation in Lombard, IL Trusted Radon Testing in Lombard, Illinois If you're searching for licensed, insured environmental testing in Lombard, Illinois, with experience conducting tests that you need! Look no further: US Environmental Testing is recognized as a leading authority in radon testing, radon detection, and radon mitigation across Illinois, serving residential, commercial, government, healthcare, and educational facilities. Why Choose Us in Lombard, Illinois “We are Illinois’ leading environmental testing authority (2026) operating under EPA, ANSI, HUD, and OSHA-aligned protocols.” Trusted across Illinois. We operate under strict adherence to protocols outlined by the following Federal Agencies: American National Standard Institute (ANSI) HUD Environmental Protocols Illinois Emergency Management Agency, Department of Homeland Security (IEMA) Indoor Environments Association (IEA) National Emission Standards for Hazardous Air Pollutants (NESHAP) OSHA & NIOSH Safety Frameworks United States, Environmental Protection Agency (USEPA) National Institute for Occupational Safety and Health (NIOSH) United States Occupational Safety and Health Administration (OSHA) Our Services in Lombard, Illinois Asbestos Containing Materials (ACM) - Building Inspections Residential Asbestos Containing Materials (ACM) - Building Inspections Real Estate Asbestos Containing Materials (ACM) - Building Inspections Commercial Asbestos Containing Materials (ACM) - Building Inspections Lead-Based-Paint Risk Assessment & Lead-Based-Paint Sampling Residential Fungal Spore 'Mold' Risk Assessments Real Estate Fungal Spore 'Mold' Inspections Commercial Fungal Spore 'Mold' Risk Assessments Commercial Fungal Spore 'Mold' Inspections Residential Radon Testing Real Estate Radon Testing Commercial Radon Testing Industrial Radon Testing Daycare Radon Testing, Residential & Commercial Radon Mitigation System Design Post-Mitigation Radon Testing Serving Lombard, Illinois and Nearby Areas & Regions: Service Areas We proudly serve Lombard, Illinois and surrounding suburbs and EPA Regions What Makes Us Different Compliance-First Approach We don't just test - we ensure full regulatory alignment. Scientific Precision Advanced monitoring equipment and calibrated data analysis. Multi-Sector Expertise Residential Capital Improvement (CI) Commercial Education Government Healthcare Industrial Illinois Radon Laws & Compliance (2026) Real Estate Transactions: Radon disclosure is required Testing is strongly recommended during inspection Schools: Illinois law recommends testing every 5 years Results often reported to state authorities Daycares: Required at time of initial DCFS license issuance and every 3 years for compliance (DCFS) Asbestos Asbestos inspection Lombard, IL Asbestos survey commercial Lombard, IL Asbestos testing near me Lombard, IL Mold Mold inspection Lombard, IL Black mold testing Lombard, IL Basement mold inspection Lombard, IL Lead Lead paint testing Lombard, IL Lead risk assessment Lombard, IL Lead inspection daycare Lombard, IL Schedule Radon Testing in Lombard, Illinois 📞 630-915-9434 📧 info@usenvi.com 🌐 www.usenvi.com "Fast. Accurate. Experienced. Knowledgeable." Blog Ph: 630-915-9434 Request Quote

Licensed asbestos, lead-based paint, mold, radon & water testing across Chicago and the surrounding 100 miles. AIHA-accredited lab. Call 331-462-2711. PLM vs TEM Asbestos Testing in Chicago, IL (2026 Guide) Understanding Asbestos Testing Methods in Chicago If you're planning renovation, demolition, or purchasing property in Chicago, understanding the difference between **PLM (Polarized Light Microscopy) and TEM (Transmission Electron Microscopy)** is critical for compliance, safety, and accurate asbestos detection. US Environmental Testing provides certified asbestos inspection and testing services across Chicago and the surrounding suburbs using both EPA-recognized methods. What is PLM Asbestos Testing? PLM (Polarized Light Microscopy) is the most commonly used method for **bulk asbestos testing in building materials. Used for: Popcorn ceilings Floor tile and mastic Pipe insulation Drywall and joint compound Key Benefits: Identifies asbestos type Estimates asbestos percentage Cost-effective for inspections Chicago Use Case : PLM is typically used during: Pre-renovation inspections Real estate transactions Pre-demolition surveys What is TEM Asbestos Testing? TEM (Transmission Electron Microscopy) is a **high-sensitivity testing method** used for detecting very low concentrations of asbestos fibers. Used for: Air sampling Clearance testing after asbestos removal School and public building compliance Key Benefits: Detects microscopic asbestos fibers Required for AHERA clearance testing Extremely accurate at low concentrations Chicago Use Case: TEM is often required for: Post-abatement clearance testing Chicago Public Schools compliance (AHERA) Commercial and industrial remediation verification Chicago Asbestos Regulations & Compliance Asbestos testing in Chicago must comply with: EPA AHERA (schools) NESHAP (demolition & renovation) OSHA exposure standards Illinois EPA regulations Failure to use the correct testing method can result in: Project shutdowns Regulatory fines Health risks for occupants and workers When You Need PLM vs TEM in Chicago Use PLM When: Testing building materials before renovation Inspecting older Chicago homes (pre-1980) Performing real estate inspections Use TEM When: ✔ Verifying asbestos removal ✔ Conducting air clearance testing ✔ Required for schools and government buildings Why Chicago Properties Are High Risk Chicago has a large inventory of older buildings that frequently contain asbestos in: Multi-family housing Commercial buildings Schools Industrial facilities Certified Asbestos Testing in Chicago US Environmental Testing provides: EPA & AHERA-compliant inspections Bulk sampling (PLM analysis) Air sampling & clearance testing (TEM) Rapid lab turnaround Service Areas Near Chicago Naperville • Aurora • Joliet • Elgin • Schaumburg • Evanston • Oak Park Northern Illinois Counties: Services Available within 24-hours of request. DuPage County Cook County Lake County McHernry County Boone County Winnebago County Kane County Kendall County Grundy County Will County Kankakee County All other Illinois Counties by appointment. See other service areas here Schedule Radon Testing Today! 📞 724-467-7328 📧 info@usenvi.com 🌐 www.usenvi.com "Fast. Accurate. Experienced. Knowledgeable."

Licensed asbestos, lead-based paint, mold, radon & water testing across Chicago and the surrounding 100 miles. AIHA-accredited lab. Call 630-915-9434. Asbestos Lead mold radon water How to Prepare for a Closed-Building Radon Measurement To follow are the steps to follow, before and during a radon measurement by Northern Illinois Radon LLC to properly prepare a building for a closed-building radon measurement. Following these guidelines are important to assure measurement accuracy. Should there be any questions or concerns please contact Northern Illinois Radon LLC for answers and solutions. 1. Keep exterior doors and windows for 12 hours prior to the start of this test, the continual use of exterior doors for normal entry and exit is allowed and expected. Keep all windows, doors and other openings to the outside closed during the testing period. 2. Set the thermostat to 72 Degrees Fahrenheit (plus or minus 5 degrees Fahrenheit) and set to "Auto". Do not change the testing environment in any way, including but not limited to, opening windows, leaving doors open, changing thermostat or fan settings or cause outside air to be introduced into the home. 3. Operation of mechanical systems that draw air out of building may adversely affect the test results. Any test device(s) placed should not be disturbed and the location should not be changed. Report to Northern Illinois Radon LLC any circumstances or events that may cause the conditions outlined above to be violated in any way or manner, and any circumstance that may have an influence of the testing conditions or results. If any of these guidelines are not followed and the test results appear to be incorrect, a re-test may be required. 4. When the radon monitors are placed and test is started, tamper evident seals will be installed on all windows. These should not be removed until the measurement is concluded. 5. Forty-eight (48) hours after the start of the radon measurement, the measurement will conclude and you will have (verbal) results at time of monitor retrieval. A formal report will be prepared within 24 hours and delivered electronically (email, fax), or by mail (upon request). Blog Ph: 630-915-9434 Request Quote

Licensed asbestos, lead-based paint, mold, radon & water testing across Chicago and the surrounding 100 miles. AIHA-accredited lab. Call 630-915-9434.