Illinois Administrative Code › Title 35 - ENVIRONMENTAL PROTECTION › Part 740 - SITE REMEDIATION PROGRAM › Subpart D - SITE INVESTIGATIONS, DETERMINATION OF REMEDIATION OBJECTIVES, PREPARATION OF PLANS AND REPORTS › Section 740.415 - Site Investigation - General

Current through Register Vol. 48, No. 28, July 12, 2024
A site investigation shall be performed under this Part to
				  identify, as indicated within the RA's application for review and evaluation
				  services, all or specified recognized environmental conditions existing at the
				  remediation site, the related contaminants of concern, and associated factors
				  that will aid in the identification of risks to human health, safety and the
				  environment, the determination of remediation objectives, and the design and
				  implementation of a Remedial Action Plan.
a) If the RA has elected under the
				application for review and evaluation services to obtain a No Further
				Remediation Letter covering all recognized environmental conditions and related
				contaminants of concern for the remediation site, then the procedures provided
				under Sections
				740.420
				and
				740.425
				of this Part shall be followed.
b)
				If the RA has elected under the application for review and evaluation services
				to obtain a No Further Remediation Letter covering a limited number of
				recognized environmental conditions and related contaminants of concern as
				specified by the RA, then the procedures at Sections
				740.430
				and
				740.435
				of this Part shall be followed.
c)
				The RA may revise an election at any time by initiating a modification of the
				Review and Evaluation Services Agreement under Section
				740.220
				of this Part and performing the appropriate site investigation, if
				necessary.
d) Site investigations
				shall satisfy the following data quality objectives for field and laboratory
				operations to ensure that all data is scientifically valid and of known
				precision and accuracy:
1) All field sampling
				activities relative to sample collection, documentation, preparation, labeling,
				storage, shipment and security, quality assurance and quality control,
				acceptance criteria, corrective action, and decontamination procedures shall be
				conducted in accordance with "Test Methods for Evaluating Solid Waste,
				Physical/Chemical Methods" (SW-846), Vol. One, Ch. One (Quality Control) and
				Vol. Two (Field Manual), incorporated by reference at Section
				740.125
				of this Part. If approved by the Agency, such activities also may be conducted
				in accordance with ASTM standards, methods identified in "A Compendium of
				Superfund Field Operations Methods" (EPA/540/0-87-001, OSWER Directive 9355.0
				-14, December 1987), "Subsurface Characterization and Monitoring Techniques: A
				Desk Reference Guide, Volume I: Solids and Ground Water, Appendices A and B"
				(EPA/625/R-93/003a, May 1993), "Subsurface Characterization and Monitoring
				Techniques: A Desk Reference Guide, Volume II: The Vadose Zone, Field Screening
				and Analytical Methods, Appendices C and D" (EPA/625/R-93/003b, May 1993),
				incorporated by reference at Section
				740.125
				of this Part, or other procedures.
2) All field measurement activities relative
				to equipment and instrument operation, calibration and maintenance, corrective
				action, and data handling shall be conducted in accordance with "Test Methods
				for Evaluating Solid Waste, Physical/Chemical Methods" (SW-846), Vol. One, Ch.
				One (Quality Control), incorporated by reference at Section
				740.125
				of this Part, or with an equipment or instrument manufacturer's or vendor's
				published standard operating procedures.
3) All laboratory quantitative analysis of
				samples to determine concentrations of regulated substances or pesticides shall
				be conducted fully in accordance with "Test Methods for Evaluating Solid Waste,
				Physical/Chemical Methods" (SW-846), incorporated by reference at Section
				740.125
				of this Part, relative to all facilities, equipment and instrumentation,
				operating procedures, sample management, test methods, equipment calibration
				and maintenance, quality assurance and quality control, corrective action, data
				reduction and validation, reporting, and records management. The practical
				quantitation limit (PQL) of the test methods selected must be less than or
				equal to the most protective Tier 1 soil remediation objectives in 35 Ill. Adm.
				Code 742.Appendix B, applicable groundwater remediation objectives under 35
				Ill. Adm Code 742.Appendix B, or, if already determined, the remediation
				objective concentrations for the site. If a contaminant of concern is not
				identified in Part 742 or the remediation objectives for the site have not been
				determined, the PQL shall equal the lowest concentration that reliably can be
				achieved within specified limits of precision and accuracy during routine
				laboratory operating conditions but shall not be greater than ten times the
				method detection limit.
4) All
				field or laboratory measurements of samples to determine physical or
				geophysical characteristics shall be conducted in accordance with ASTM
				standards or other procedures as approved by the Agency.
5) All laboratory quantitative analyses of
				samples to determine concentrations of any regulated substances or pesticides
				that require more exacting detection limits or cannot be analyzed by standard
				methods identified in "Test Methods for Evaluating Solid Waste,
				Physical/Chemical Methods" (SW-846), incorporated by reference at Section
				740.125
				of this Part, shall be conducted in accordance with analytical protocols
				developed in consultation with and approved by the Agency.
6) Effective January 1, 2003, all
				quantitative analyses of samples collected on or after that date and utilizing
				any of the approved test methods identified in 35 Ill. Adm. Code
				186.180
				shall be completed by an accredited laboratory in accordance with the
				requirements of 35 Ill. Adm. Code 186. Quantitative analyses not utilizing an
				accredited laboratory in accordance with Part 186 shall be deemed
				invalid.