Section 258.90 Sampling and Analysis

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Illinois Administrative Code › Title 8 AGRICULTURE AND ANIMALS › CHAPTER I: DEPARTMENT OF AGRICULTURE › Part 258 LAND APPLICATION AUTHORIZATION PROGRAM › Section 258.90 Sampling and Analysis

This text was captured on Aug 14, 2026. It is a snapshot, not a live feed, so check the official code before relying on it.

Text

Section 258

Section 258.90  Sampling and

Analysis

a)         Contaminated soil or groundwater must be sampled in accordance

with the requirements of this Part and analyzed for the presence and

concentration of the target agrichemicals included on the list of compounds

required in 8 Ill. Adm. Code 255.50(a).  Soil samples may be composited.  At

least one composite soil sample is required per one-eighth acre of the spill site,

using six subsamples per composite.

b)         Soil samples from the land application area, excluding field

access lanes, must be collected to the depth of incorporation or three inches,

whichever is less.  Soil samples from field access lanes must be collected to a

depth of six inches.

c)         Soil samples collected from the land application area must be

analyzed for the agrichemicals that were the basis for determining the

application rate of the contaminated soil or groundwater pursuant to Section 258.70(e).

d)         Sampling of the land application area must be conducted in

accordance with Appendix D of this Part, except field access lanes that must be

sampled at the rate of at least one composite soil sample per 500 lineal feet.

e)         All field and laboratory activities must satisfy the following

to ensure that all data are 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 must be conducted in accordance with "Test

Methods for Evaluating Solid Waste, Physical/Chemical Methods" (SW-846),

incorporated by reference at Section 258.40 of this Part

activities relative to sample collection,

documentation, preparation, labeling, storage, shipment and security, quality

assurance and quality control, acceptance criteria, corrective action, and

decontamination procedures must be conducted in accordance with "Test

Methods for Evaluating Solid Waste, Physical/Chemical Methods" (SW-846),

incorporated by reference at Section 258.40 of this Part.

2)         All field measurement activities relative to equipment and instrument

operation, calibration and maintenance, corrective action, and data handling

must be conducted in accordance with SW-846, or with an equipment or instrument

manufacturer's or vendor's published standard operating procedures.

3)         All laboratory quantitative analyses of soil samples to

determine concentrations of pesticides must be conducted fully in accordance

with SW-846, 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 RSDLs contained in Appendix A of this Part.

4)         All laboratory quantitative analyses of soil samples to

determine concentrations of pesticides or nutrients must be conducted on the

less than 2-mm fraction.

5)         All laboratory quantitative analyses of soil samples to

determine concentrations of pesticides that require more sensitive detection

limits or cannot be analyzed by standard methods identified in SW-846 must be

conducted in accordance with analytical protocols developed in consultation

with and approved by the Department.

6)         All groundwater monitoring and analytical procedures must be

conducted in accordance with 35 Ill. Adm. Code 620.505 and 620.510

concentrations of pesticides that require more sensitive detection

limits or cannot be analyzed by standard methods identified in SW-846 must be

conducted in accordance with analytical protocols developed in consultation

with and approved by the Department.

6)         All groundwater monitoring and analytical procedures must be

conducted in accordance with 35 Ill. Adm. Code 620.505 and 620.510.

7)         All quantitative analyses of soil and groundwater samples that

utilize 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.

This is a copy of a public record, reproduced as it was published. It is not legal advice, and it may not be the version a court would rely on. Check the official source before you cite it.

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Section 258.90 Sampling and Analysis · 8 Ill. Adm. Code 258.90 | Frix