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Manufactured Gas Plant (MGP) Site Testing

The 19th & early 20th centuries was the height of the period when Manufactured Gas Plants (MGPs) were producing gas to light cities around the United States. The plants were located near the point of use, close to a water source required for the gas production. A number of different fuels and processes were used, giving rise to a range of residual materials. With the advent of electricity and other sources of gas, many sites were leveled and re-developed leaving potentially harmful by-products in place. MGP site projects can be both complex and challenging to investigate and clean up, requiring a broad range of specialized environmental testing services.

Alpha Analytical has considerable experience working on all aspects of MGP site characterization and remediation. In addition to air testing and soil gas analysis, Alpha offers specialty testing for sediments, soils and groundwaters, including alkylated PAHs, cyanide and the typical MGP-associated analyses. Alpha has the technical knowledge and experience, no matter what the matrix, to provide the best possible data from potentially highly contaminated samples.

For MGP sites, where vapor intrusion is a concern, Alpha offers an extended hydrocarbon analyte list, which includes the NYSDEC 'compounds of potential concern' (COPCs) list for MGP sites; plus a number of the marker compounds considered characteristic for MGP air-phase emissions.

Whether your need is fence-line air monitoring for VOCs or PAHs during MGP site remediation, or to investigate the potential for vapor intrusion, Alpha Analytical has the testing tools to meet all your needs for MGP site investigation and remediation.


Air & Vapor Testing to Support MGP Site Investigations



Volatile Organic Compounds (VOCs) [TO-15 or TO-14 analyte list]


NJDEP TO-15 List & NJDEP Deliverables

EPA TO-15 SIM Volatile Organic Compounds (VOCs) via SIM
MassDEP APH Air Phase Petroleum Hydrocarbons

Parafins, Isoparafins, Aromatics, Naphthalenes, Olefins - Extended Forensic Hydrocarbon List

EPA 3C Fixed Gases
EPA 3C (Modified) Methane, Ethane & Ethene
EPA TO-13 (Modified) Polynuclear Aromatic Hydrocarbons (PAHs) - Extended Compound List
EPA IO-3.1 PM-10 and Total Suspended Particulates
EPA 6010C/6020A Particulate Metals Analysis
NIOSH 6009 (Modified) Mercury in Air

* Alpha Analytical supports the 'NYSDEC MGP Indicator' compounds: Thiophenes - thiophene, methylthiophene, ethylthiophene, benzothiophene; Alkyl-substituted benzenes - 1,2,3-trimethylbenzene, 1,2,4,5-tetramethylbenzene; Aromatics - indane, indene, naphthalene, 1-methylnaphthalene, 2-methylnaphthalene.


Contact Alpha Analytical today for your upcoming Air Testing project.

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