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Announcements


http://seminario.ekosbrasil.org/en/
10h00 – 12h00 SESSION 1: Solutions – Craig Cox (Cox-Colvin & Associates, Inc.) – will be presenting – Evaluation and Remediation of a Large Comingled Dilute Chlorinated VOC Plume in Sand and Gravel Aquifer – a Case Study
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October 15-18, 2018: 34th Annual International Conference on Soils, Sediment in Amherst, Massachusetts at Booth B16. October 18, 2018 - Session 19: 9:30 a.m - Craig A. Cox will present Successful Closure of a DNAPL Site – Lessons Learned ... See MoreSee Less

#stopradon AARST international Radon and Trade Show 2018 ... See MoreSee Less

Available now - Mini Vapor Pin. Please make sure to read the SOP or the Mini Vapor Pin as it is a different installation that the original version. The Mini Vapor Pin comes as a set. SET INCLUDES: Mini Vapor Pin®, FLX-VPTM Barb with O-ring, Silicone Sleeve, and Mini Vapor Pin® Secure Cover with O-ring.
Order yours today!
https://www.vaporpin.com/product/mini-vapor-pin/

https://www.vaporpin.com/wp-content/uploads/2018/07/Mini-Pin-SOP-7-13-2018-Web.pdf
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Did you know that the Vapor Pin is a tool for..
1 - Locating VOC sources below hard surfaces
2 - Collecting high-resolution data sets
3 - Differential Pressure Testing
4 - Radon Mitigation Testing
5 - Stray Gas Evaluations
6 - Sub-Slab Soil Gas Sampling
7 - Long Term Monitoring
8 - Continuous Monitoring
9 - Vapor Intrusion Assessments
10 - Methane Sampling on Landfills
etc, etc., etc.,
Contact us for more information
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METHODS AND TECHNIQUES IN THE INVESTIGATION AND REMEDIATION OF CONTAMINATED AREAS. 3rd workshop successful. Thank you to all those who attended. #sitecharacterization #vaporpin #vaporpindobrasil ... See MoreSee Less

All set up and ready for the GOwen Environmental - Contaminated Site Management Outdoor Demonstration. ... See MoreSee Less

Happy Memorial Day Weekend! Thank you to those who served and who are serving. ... See MoreSee Less

Radon in Schools: Despite state and federal recommendations, only 53 of 331 school districts in Minnesota report they have tested classrooms for radon since 2012. KARE 11 found out which Twin Cities area districts are testing – and which ones are not.

Hollywood recognizes Radon: Shantel VanSanten has turned a personal tragedy into a catalyst for helping others. After her grandmother passed, VanSanten and her family looked for answers, and were shocked at what they found. “We searched to understand what the cause was, and we found it was from radon poisoning, which was found in [her] basement.”
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Are you attending @TCEQEVENTS? Stop by and see whats new at Booth 525 ... See MoreSee Less

Main Content

Pressure Field Extension Testing


Using Vapor Pins® for Pressure Field Extension Testing
Vapor Pins® are widely used for Pressure Field Extension (PFE) tests of radon and vapor-mitigation systems. The PFE test (also called a “Suction Field Extension Test” or “Communication Test”) ensures that a sub-slab depressurization (SSD) system creates sufficient vacuum everywhere beneath a floor. PFE testing is essential for proper system design and installation, and periodic testing in subsequent years verifies that the SSD continues to operate within specified limits. A common approach to measuring subslab vacuum is to drill a hole in the slab, jam a manometer into the hole, and take a reading, while running a radon fan or shop vacuum at the suction pit. Unfortunately, it can be difficult to form a tight seal between the manometer and the slab, and the test hole cannot be left open for subsequent testing.

A better approach for PFE testing is to measure the sub-slab vacuum through a Vapor Pin®. The Vapor Pin® provides a tight seal against the slab, and with the Vapor Pin® Cap in place, prevents the loss of soil gas to indoor air. The Vapor Pin® can be left in place indefinitely for subsequent measurements, or removed and reused elsewhere. For radon testing, the Vapor Pin® can be reused by simply cutting off and replacing the silicone sleeve between holes. For vapor-intrusion use, the Vapor Pin® should also be decontaminated before moving it to a different location.

For conducting PFE tests during pilot testing, the Vapor Pin® can be installed in the stick-up configuration, which requires drilling a 5/8-inch diameter hole in the slab. If the Vapor Pin® will be left in place for subsequent testing, it is typically installed in the flush-mount configuration, so that it doesn’t pose a trip hazard. The flush-mount installation requires drilling a 1-1/2 diameter inch hole and a 5/8-inch diameter hole. The flush-mount Vapor Pin® may be covered with Cox-Colvin’s stainless steel Secured Cover, which reduces the risk of tampering, or a black plastic Flush Mount Cover, which is more economical. We recommend using brass Vapor Pins® for one-time use, such as pilot testing, and stainless steel Vapor Pins® if points will be left in place for subsequent testing.

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