New Jersey Administrative Code › Title 7 - ENVIRONMENTAL PROTECTION › Chapter 7 - COASTAL PERMIT PROGRAM RULES › Attachment A - DREDGED MATERIAL ACCEPTABLE USE DETERMINATION PROCESS

Current through Register Vol. 56, No. 14, July 15, 2024
I.
Sampling Methodology:
The sampling methodology described below has been drawn from
				Section 8.2.6 of the "Evaluation of Dredged Material Proposed for Ocean
				Disposal - Testing Manual," February 1991, USEPA and the
				USACE(EPA503/8-91/001); the USEPA and the USACE "QA/QC Guidance for Sampling
				and Analysis of Sediments, Water, and Tissues for Dredged Material
				Evaluations," (EPA 823-B-95-001, April 1995); and the "Field Sampling
				Procedures Manual," New Jersey Department of Environmental Protection and
				Energy, May 1992.
The data reports submitted to the Department for testing and
				analysis of material proposed for dredging must include descriptions of the
				procedures used for sample handling, preservation, and storage. These
				procedures must conform to the following guidance:
(a) Sediment sampling:
The recommended storage and preservation procedures for
				sediment samples are summarized in attachment B of this appendix. The specified
				holding times must be adhered to or the proposed alterations to the specified
				holding time approved by the Department prior to analysis.
Sediment samples are subject to chemical, biological, and
				physical changes as soon as they are collected. Therefore, the handling,
				preservation, and storage techniques should minimize any changes in sample
				composition by retarding chemical and/or biological activity and by avoiding
				extraneous contamination.
A coring device should be used for sediment sample collection,
				in conjunction with inert plastic liners which are not to be reused. The barrel
				of the coring device must be rinsed between each coring; the use of site water
				for rinsing is acceptable. Cross-contamination of collected sediment and water
				samples via personnel must also be avoided.
Generally, samples to be analyzed for metals should not come
				into contact with metal sampling equipment, and samples to be analyzed for
				organic compounds should not come into contact with plastics. All sample
				containers should be appropriately cleaned: acid-rinsed (10% nitric acid) for
				metal analysis, and solvent-rinsed (acetone is preferred; however, other
				approved solvents such as methanol and hexane can be used as well) for organic
				analysis. When equipment will be used to take samples for both metal and
				organic compound analysis, the acid rinse must be conducted first, and the
				solvent rinse second.
Samples should completely fill the storage container, leaving
				no head space, except for expansion volume needed for potential freezing. Since
				the first few hours after collection are the most critical for potential
				changes to the sediment, preservation should begin immediately after collection
				onboard the collecting vessel. This would include refrigeration or freezing
				with dry ice. The elapsed time between sample collection and analysis must be
				as short as possible, and not exceed the recommended holding times listed in
				Attachment B.
(b) Water
			 sampling:
The recommended storage and preservation procedures for water
				samples are summarized in Attachment B. The specified holding times by analyte
				group for water samples must be adhered to, or any proposed alteration of the
				specified holding time approved by the Department prior to analysis.
Water samples are subject to chemical, biological, and
				physical changes as soon as they are collected. Therefore, the handling,
				preservation, and storage techniques should minimize any changes in sample
				composition by retarding chemical and/or biological activity and by avoiding
				extraneous contamination.
Water samples should be collected with either a
				non-contaminating pump (peristaltic or magnetically coupled impeller design
				pump) or a discrete water sampler. The pump system should be flushed with 10
				times the volume of the collection tubing using site water. The discrete water
				sampler should be made of stainless steel or acrylic plastic and be of the
				closed/opened/closed type. Seals should be Teflon-coated. All water sampling
				devices should be acid-rinsed (10% nitric acid) for metal analysis, and
				solvent-rinsed (acetone is preferred; however, other approved solvents such as
				methanol and hexane can be used as well) for organic analysis. When equipment
				will be used to take samples for both metal and organic compound analysis, the
				acid rinse must be conducted first, and the solvent rinse second.