N.J. Admin. Code § 7:14C-1.6
Current through Register Vol. 56, No. 24, December 18, 2024
Section 7:14C-1.6 - Sampling procedures(a) All sludge samples shall be collected at locations representative of the chemical and physical characteristics of the sludge removed from the last treatment process before leaving the treatment plant for use or disposal. For example, if a treatment works discharges dewatered filter cake for land application, then the sampling activity must focus on the output sludge stream from the dewatering device (that is, vacuum filter, belt filter press, etc.).(b) Where a treatment works generates several different types of sludges (for example, primary, secondary or advanced wastewater treatment sludges) each of which is removed separately for use or disposal, separate composite samples for each different type of sludge shall be analyzed and reported pursuant to N.J.A.C. 7:14C-1.8(c) for domestic treatment works and N.J.A.C. 7:14C-1.9(c) or (d) for industrial treatment works. All reports shall be clearly marked as to the origin of the sludge sample.(c) Each domestic treatment works and industrial treatment works shall develop and maintain on file on-site a sludge sampling plan that details its sampling and analytical procedures. The Department will require the sampling plan to be submitted every five years as part of the NJPDES permit application or when unusually high or low pollutant concentration data, contained in SQAR reports or other information, suggest that the sampling and analytical procedures used by the treatment works may be inadequate. The plan shall: 1. Identify sludge sampling points that are established at a location(s) which ensure sample homogeneity and best represent the physical and chemical quality of all sludge which is removed from the treatment works for use or disposal;2. Identify the equipment to be utilized for sampling. The equipment shall be constructed of materials which will not contaminate or react with the sludge (for example, galvanized or zinc coated items shall not be used); and3. Demonstrate how quality assurance and quality control requirements and procedures for sampling and analysis, including decontamination procedures, consistent with the applicable analytical method in accordance with N.J.A.C. 7:14C-1.4, Analytical procedures, will be met.(d) Samples shall be prepared in accordance with the following: 1. Samples requiring preservation shall be preserved upon receipt in the laboratory which will be conducting the analytical testing.2. When required, samples shall be chilled during compositing, holding, and transporting as specified in the applicable analytical method in accordance with N.J.A.C. 7:14C-1.4, Analytical procedures.3. Domestic and industrial treatment works shall form composite samples for reporting the information required under N.J.A.C. 7:14C-1.8(c) or (d) for domestic treatment works, and N.J.A.C. 7:14C-1.9(c) or (d) for industrial treatment works, by using a minimum of five grab samples of equal volumes collected at the time sludge is removed for use or disposal during the monitoring period. Sample holding times begin upon combination of the last aliquot.(e) Procedures for sampling or compositing may be modified upon written approval of the Department based upon site specific operational requirements. Requests for modifications shall be sent to Mail Code: 401-02B, Bureau of Pretreatment and Residuals, Division of Water Quality, P.O. Box 420, Trenton, New Jersey 08625-0420.N.J. Admin. Code § 7:14C-1.6
Repeal and New Rule, R.1989 d.282, effective 6/5/1989.
See: 21 N.J.R. 373(a), 21 N.J.R. 1530(a).
The rule formerly at this cite was entitled "Action of the Commissioner".
Recodified from N.J.A.C. 7:14-4.6 and amended by R.1999 d.164, effective 5/17/1999.
See: 31 N.J.R. 200(a), 31 N.J.R. 1320(a).
Rewrote the section.
Amended by R.2006 d.198, effective 6/5/2006.
See: 37 N.J.R. 4121(b), 38 N.J.R. 2420(b).
In (c), substituted "when" for "unless"; and in (d)3, substituted "(c) or (d)" for "(b) or (c)" and "monitoring" for "reporting" and added the last sentence.
Amended by R.2011 d.285, effective 11/21/2011.
See: 43 N.J.R. 1312(a), 43 N.J.R. 3083(c).
In (b), substituted "(c) or (d)" for "(b) or (c)"; in the introductory paragraph of (c), inserted "every five years as part of the NJPDES permit application or"; rewrote (c)3 and (d)2; in (d)3, inserted "or (d)"; and in (e), inserted "Mail Code: 401-02B", and substituted "420" for "029" and "0420" for "0029".