Announcements


NEW - Tygon Connectors!The Vapor Pin® Kit is designed to make your use of our products a success each time. However, one item was previously not included - the connector to match the barb fitting to the sample train. From this point forward, our kits will include Tygon connectors to bridge the distance between your sampling train and the Vapor Pin® Sampling Device. You may also purchase a bag of Tygon connectors separately or in 5 foot lengths.https://www.vaporpin.com/product/tygon-connectors-10-pieces/ ... See MoreSee Less
Vapor Pin is at Ferrara.
Vapor Pin
I'm thrilled to share with you the program of Remtech Europe 2021. This important environmental conference is made of 23 sessions fully ONLINE. Any session is completely FREE.To follow any session you have to register in our website https://remtech.meeters.space with a valid email. To reserve your seat, receive the presentations in pdf and receive your Certificate of Attendance of the session you will attend, you have to register in the Google form of each session. In each form you would find also the detailed program and beginning and end in different time zones. Reserve your seat today!SESSION 1 (Organized by JRC-European Commission) From policy talking to industry actions: Zero Pollution for Soil Mon 20 SEPTEMBER 09:00 – 13.00 CEST https://forms.gle/RhvqacpBJKrXvveq6SESSION 2 (Organized by US Army Corps of Engineers) TRAINING COURSE - PFAS: characterization, environmental impact, remediation strategies Mon 20 SEPTEMBER 14.30 – 19.00 CEST https://forms.gle/pSJzwMWt7G1mERUKASESSION 3 Sustainable management of contaminated sites Mon 20 SEPTEMBER 14.30 – 16.30 CEST https://forms.gle/GzgcfXHWEzTySktVASESSION 4 Waste tailings and acid mine drainage: challenges for Mining Sites Mon 20 SEPTEMBER 17.00 – 19.00 CEST https://forms.gle/RqQLnZqXeoJd5dKK8SESSION 5 Bioremediation and phytoremediation in agricultural, industrial, and military sites Tue 21 SEPTEMBER 09.00 – 11.00 CEST https://forms.gle/sScosaSUwsSh5AH79SESSION 6 Oil and hydrocarbons impacted sites Tue 21 SEPTEMBER 11.30 – 13.30 CEST https://forms.gle/VFx1Re2txyaxF2z78SESSION 7 HRSC, High Resolution Site Characterization Tue 21 SEPTEMBER 11.30 – 13.30 CEST https://forms.gle/okDrkFA8YrsAUhcRASESSION 8 (Organized by ASTM) TRAINING COURSE - ASTM STANDARDS: PFAS, Sediment and Climate Resilience Tue 21 SEPTEMBER 14.30 – 19.00 CEST https://forms.gle/pnz5H6edwFi6p1QA9SESSION 9 Innovative, digital and smart characterization techniques tools Tue 21 SEPTEMBER 14.30 – 16.30 CEST https://forms.gle/5MvheZmiPq5aQphW8SESSION 10 Circular Economy: how to apply it in the context of the next Generation EU Tue 21 SEPTEMBER 17.00 – 19.00 CEST https://forms.gle/tHBuZXpuraKiHYwi8SESSION 11 Soil remediation: can we deal in a sustainable way? Wed 22 SEPTEMBER 09.00 – 11.00 CEST https://forms.gle/Zh8gKvK1bn8BxcJk9SESSION 12 DNAPL and chlorinated compounds: optimize the process to achieve the target Wed 22 SEPTEMBER 11.30 – 13.30 CEST https://forms.gle/M8zcit6jQiNaBa446SESSION 13 (Organized by SERDP-ESTCP) TRAINING COURSE - Current Approaches for Vapor Intrusion Site Investigation and Mitigation Wed 22 SEPTEMBER 14.30 – 19.00 CEST https://forms.gle/q4BigJhPv891kG4U8SESSION 14 (Organized by Ramboll) TRAINING COURSE - Sustainability assessment as a tool for a more sustainable and resilient remediation of soils, groundwater and sediments Wed 22 SEPTEMBER 14.30 – 16.30 CEST https://forms.gle/LFBFwAaWqdnvPQUb8SESSION 15 PFAS, remediating the forever chemical Wed 22 SEPTEMBER 17.00 – 19.00 CEST https://forms.gle/H3yXyRzBshvKifBM9SESSION 16 Microplastics and sediments: two main threats for ports and coastal areas Thu 23 SEPTEMBER 09.00 – 11.00 CEST https://forms.gle/GQCAfXJ142r23r2B9SESSION 17 Sustainathon Thu 23 SEPTEMBER 14.00 – Fri 24 SEPTEMBER 14:00 CEST https://forms.gle/zCQBwt3eG1xBFGSM7SESSION 18 Aeriforms and vapor intrusion: measures and models Thu 23 SEPTEMBER 11.30 – 13.30 CEST https://forms.gle/m1KikTrbNncick936SESSION 19 Groundwater remediation in difficult conditions Thu 23 SEPTEMBER 11.30 – 13.30 CEST https://forms.gle/d9neHnF2sP9mN8hu6SESSION 20 (Organized by AESAS) TRAINING COURSE - State of the art of contaminated sites in Brazil Thu 23 SEPTEMBER 14.30 – 19.00 CEST https://forms.gle/Yy5hBLnzX2qngWcS8SESSION 21 River environment: managing impacts from different sources Fri 24 SEPTEMBER 09.00 – 11.00 CEST https://forms.gle/Ydgj3UFN13TTg3Yk8SESSION 22 Wastewater and sewer sludge, handling the last link in the chain Fri 24 SEPTEMBER 11:30 – 13.30 CEST https://forms.gle/L6Tsi5zPVfUpWQhEASESSION 23 TRAINING COURSE: Wastewater control and seawater quality: it is possible to do it acting differently? Fri 25 SEPTEMBER 14.30 – 19.00 CEST https://forms.gle/mvTELbnKXZr4S6cs5Feel free to share to your colleagues or to any contacts that you think he/she may be interested. REMEMBER THAT THE CONFERENCE IS FREE, NO FEES. JOIN US !See you online!Laurie A. ChilcoteRemtech Europe Ambassador ... See MoreSee Less
Vapor Pin is at RemTech Expo.
Vapor Pin
Decontamination and Decommissioning of Warehouses - Gela Industrial Site. - Author: Mariangela Venco (ENI Rewind) RemTech Expo ... See MoreSee Less
We are excited to announce our Brazil Patent BR 11 2018 004186-6 has been granted!#remediation #vaporintrusion #contaminatedsites #vaporpin #vi #coxcolvin #patent #Brazil ... See MoreSee Less
Don't miss out, join us next week at one or all of the following webinars to see and be seen!Tuesday - May 19th with Brownfield Summit, Craig Cox will be presenting at 10:35 EST - Evaluating and Remediating a Complex Contaminated Groundwater Plumehttps://www.brownfieldsummit.com/programmeWednesday - May 20th with MSECA - Craig Cox will be presenting on Sanitary Sewers as the Expected Preferential Pathway in Vapor Intrusion Evaluations.http://mseca.org/2020-05_-_Seminar.phpThursday - May 20th with Alpha Labs, Join Craig Cox and Laurie Chilcote as they do a live sub-slab demo Vapor Intrusion: Sampling with Confidence for Mid-Atlantic Stateshttps://register.gotowebinar.com/register/8677107578848466445 ... See MoreSee Less
We are excited to participate in the virtual seminar Vapor Intrusion: Sampling with Confidence for the Mid-Atlantic region, with Mark Mank of the Maryland Department of the Environment, Todd Creamer of Geosyntec Consultants, Christina Lewis at Langan Engineering & Environmental Services, Craig Cox at Cox-Colvin and Associates, Inc. and our own William Elcoate and Andy Rezendes. This event is free. NJ LSRP CEC Application for credits is pending. Registration is open: https://lnkd.in/djzaP9B ... See MoreSee Less
We are OPEN for business, stocked and ready to support you. Please be safe, wash your hands and practice social distancing! ... See MoreSee Less
We are OPEN for business. Just noticed are website has a hiccup. If you can't get online, please call our office for direct sales. 614-504-6915.We apologize for the inconvenience and hope to have the site back up momentarily! #vaporpin ... See MoreSee Less

Main Content

Source Characterization


Using Vapor Pins® sampling device for Source Characterization
The Vapor Pin® sampling device is ideally suited for locating Volatile Organic Compound (VOC) contamination sources beneath the pavement. Our experience is that most sites have sources of contamination that in addition to those associated with underground tanks and degreasing areas. Unsuspected source areas often correspond to former exterior doors that were obscured by later building expansion. Cox-Colvin has located such sources equipped with little more than some Vapor Pin® sampling devices, a hammer drill, and a multi-gas meter.

Cox-Colvin’s approach to VOC source investigation consists of installing Vapor Pin® sampling devices along a grid, allowing the points to equilibrate, and collecting readings with a multi-gas meter. With a team of two people, we’ve installed as many as 90 Vapor Pin® sampling devices in one day and sampled, removed the Vapor Pin® sampling devices, and plugged the holes on the following day.

For source characterization, we normally install brass Vapor Pin® sampling devices in the stick-up configuration on a grid spacing of 20 to 30 feet. We cover the Vapor Pin® sampling devices with traffic cones and allow them to equilibrate for at least an hour. We then collect field readings with a hand-held multi-gas meter capable of measuring VOCs via Photo-Ionization Detector (PID), oxygen (O2), and Lower Explosive Limits (LEL). The PID indicates VOC sources. O2 in soil gas is normally lower than in air, but unusually low levels (<5%), especially with high LEL readings, are characteristic of methane generation (methanogenesis).
Methanogenesis occurs when non-chlorinated solvents or other organic matter degrades at too high a rate for O2 replenishment.

After collecting field readings at all of the sample points, samples are collected from locations with elevated PID readings, and submitted to a laboratory for confirmation. Samples can be collected into evacuated glass vials, Bottle Vacs, Tedlar bags, Summa canisters, sorbent tubes, and potentially other devices. Some containers do not offer low enough reporting levels for vapor intrusion sampling, but low levels are probably not needed for locating contaminant sources. At the conclusion of sampling, remove the Vapor Pin® sampling devices and fill the holes with hydraulic cement or caulk.

Urethane and polyurethane caulks are recommended by radon mitigation guidance for filling holes and cracks, but they contain VOCs that could interfere with subsequent sampling. Hydraulic cement does not contain VOCs, but it sets up quickly, making it potentially difficult to fill borings to total depth.  After removing the silicone sleeve and other plastic parts from the Vapor Pin® sampling devices, decontaminated them for reuse. Cox-Colvin has a number of Vapor Pin® sampling devices that they have used an average of seven or eight times with no breakage or damage.

DOWNLOAD PDF