Phase II Environmental Site Assessments

A Phase II Environmental Site Assessment (ESA) investigates areas of concern identified in a Phase I ESA, in order to more clearly evaluate the true liability associated with a property.

Impact Environmental has full service Phase II ESA capabilities. The firm can perform quality services to acquire accurate results in an expedient manner. State-of-the-art equipment allows for fast, efficient sample and data collection.

For example, Impact Environmental owns and operates a fleet of Geoprobe vehicle-mounted hydraulic probing system, that allows for the non-obtrusive acquisition of soil, groundwater, or vapor samples.

Phase II ESA services performed by Impact Environmental include, but are not limited to, the following:

Subsurface soil sampling
Groundwater sampling (monitoring wells and Geoprobe)
• Leaching pool/underground injection well sampling
• Surface water sampling
• Asbestos sampling
• Lead paint and dust sampling
• SPDES sampling
Tank testing
Geophysical surveying
• Flow studies

All analytical work is performed by an independent Federal and State certified commercial laboratory.

All staff members have Occupational Safety and Health Administration (OSHA) forty-hour training. Supervisors are certified by the USEPA for sampling hazardous materials. Asbestos and lead sampling is performed by certified technicians.

The cost to complete a Phase II ESA can range from $500 to $500,000. The exact scope is dependent upon the number of conditions identified from the performance of a Phase I ESA.

PHASE II ENVIRONMENTAL SITE ASSESSMENT

The following is a list of the typical analytical methods performed under the scope of a Phase II Environmental Site Assessment (ESA) to determine total and leachable contaminants in multi-media samples.

 

ORGANIC VOLATILES
Parameter EPA-2 EPA-3 EPA-SW
Halogenated Volatiles 601 502.1 8010
Non-Halogenated Volatiles --- --- 8015
Aromatic Volatiles   503.1 8020
Halogenated and Aromatic Volatiles --- 502.2 8021
Volatile Organics 624 524.2 8240 (8260)

ORGANIC SEMI-VOLATILES
Parameter EPA-2 EPA-3 EPA-SW
Organochlorine Pesticides/PCBs 608 508 8080
Organophosphorus Pesticides 617, 622 507 8140
Chlorinated Herbicides 615 515 8150
Semi-Volatile Extractable Organics 625 525 8270
EDB, DBCP --- 504 ---

GENERAL CHEMISTRY
Parameter EPA-1 EPA-SW
Specific Conductance 120.1 9050
Sulfate 375.4 9038
Sulfide 376.2 9030
Sulfide, Reactive --- Sec. 7.3.4.1
Silifite 377.1 ---
Surfactants (MBAS) 425.1 ---
Total Organic Carbon (TOC) 415.2 9060
Total Organic Halides (TOX) --- 9020
Total Recoverable Petroleum Hydrocarbons 418.1 ---
Turbidity 180.1 ---

RCRA METALS
Parameter EPA-1 EPA-SW
Arsenic (As) 204.2 7041
Barium (Ba) 208.2 7080
Cadmium (Cd) 213.2 7131
Chromium (Cr) 218.2 7191
Lead (Pb) 239.2 7421
Mercury (Hg) 245.2 7471
Selenium (Se) 270.3 7741
Silver (Ag) 272.2 7760

Sources For Test Methods:

* EPA-1: "Methods for Chemical Analysis of Water and Wastes", USEPA 6004-79-030, Revised March, 1983.
* EPA-2: "Test Methods for Organic Chemical Analysis of Municipal and Industrial Wastewater", EPA 600482-057, July, 1982.
* EPA-3: "Methods for the Determination of Organic Compounds in Finished Drinking Water and Raw Source Water", USEPA, September, 1986.
* EPA-SW-846: "Test Method for Evaluating Solid Waste, Physical and Chemical Methods", USEPA SW-846, 3rd Edition, November, 1980.


General Terms and Conditions - Phase II ESAs and Subsurface Investigations
Phase II Case Study


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