40 CFR 136.7 - Quality assurance and quality control.

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§ 136.7 Quality assurance and quality control.
The permittee/laboratory shall use suitable QA/QC procedures when conducting compliance analyses with any part 136 chemical method or an alternative method specified by the permitting authority. These QA/QC procedures are generally included in the analytical method or may be part of the methods compendium for approved part 136 methods from a consensus organization. For example, Standard Methods contains QA/QC procedures in the Part 1000 section of the Standard Methods Compendium. The permittee/laboratory shall follow these QA/QC procedures, as described in the method or methods compendium. If the method lacks QA/QC procedures, the permittee/laboratory has the following options to comply with the QA/QC requirements:
(a) Refer to and follow the QA/QC published in the “equivalent” EPA method for that parameter that has such QA/QC procedures;
(b) Refer to the appropriate QA/QC section(s) of an approved part 136 method from a consensus organization compendium;
(1) Incorporate the following twelve quality control elements, where applicable, into the laboratory's documented standard operating procedure (SOP) for performing compliance analyses when using an approved part 136 method when the method lacks such QA/QC procedures. One or more of the twelve QC elements may not apply to a given method and may be omitted if a written rationale is provided indicating why the element(s) is/are inappropriate for a specific method.
(i) Demonstration of Capability (DOC);
(ii) Method Detection Limit (MDL);
(iii) Laboratory reagent blank (LRB), also referred to as method blank (MB);
(iv) Laboratory fortified blank (LFB), also referred to as a spiked blank, or laboratory control sample (LCS);
(v) Matrix spike (MS) and matrix spike duplicate (MSD), or laboratory fortified matrix (LFM) and LFM duplicate, may be used for suspected matrix interference problems to assess precision;
(vi) Internal standards (for GC/MS analyses), surrogate standards (for organic analysis) or tracers (for radiochemistry);
(vii) Calibration (initial and continuing), also referred to as initial calibration verification (ICV) and continuing calibration verification (CCV);
(viii) Control charts (or other trend analyses of quality control results);
(ix) Corrective action (root cause analysis);
(x) QC acceptance criteria;
(xi) Definitions of preparation and analytical batches that may drive QC frequencies; and
(xii) Minimum frequency for conducting all QC elements.
(2) These twelve quality control elements must be clearly documented in the written standard operating procedure for each analytical method not containing QA/QC procedures, where applicable.
[77 FR 29813, May 18, 2012]

Title 40 published on 2014-07-01.

The following are only the Rules published in the Federal Register after the published date of Title 40.

For a complete list of all Rules, Proposed Rules, and Notices view the Rulemaking tab.

  • 2014-08-19; vol. 79 # 160 - Tuesday, August 19, 2014
    1. 79 FR 49001 - National Pollutant Discharge Elimination System (NPDES): Use of Sufficiently Sensitive Test Methods for Permit Applications and Reporting
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      Final rule.
      These final regulations are effective September 18, 2014. For judicial review purposes, this final rule is promulgated as of 1:00 p.m. Eastern Time, on September 2, 2014, as provided in 40 CFR 23.2.
      40 CFR Parts 122 and 136

This is a list of United States Code sections, Statutes at Large, Public Laws, and Presidential Documents, which provide rulemaking authority for this CFR Part.

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United States Code

§ 1251 - Congressional declaration of goals and policy

§ 1251 note - Congressional declaration of goals and policy

§ 1252 - Comprehensive programs for water pollution control

§ 1252a - Reservoir projects, water storage; modification; storage for other than for water quality, opinion of Federal agency, committee...certain prescribed water quality benefits in relation to total project benefits

§ 1253 - Interstate cooperation and uniform laws

§ 1254 - Research, investigations, training, and information

§ 1254a - Research on effects of pollutants

§ 1255 - Grants for research and development

§ 1256 - Grants for pollution control programs

§ 1257 - Mine water pollution control demonstrations

§ 1257a - State demonstration programs for cleanup of abandoned mines for use as waste disposal sites; authorization of appropriations

§ 1258 - Pollution control in the Great Lakes

§ 1259 - Training grants and contracts

§ 1260 - Applications; allocation

§ 1261 - Scholarships

§ 1262 - Definitions and authorizations

§ 1263 - Alaska village demonstration projects

§ 1263a - Grants to Alaska to improve sanitation in rural and Native villages

§ 1264 - Omitted

§ 1265 - In-place toxic pollutants

§ 1266 - Hudson River reclamation demonstration project

§ 1267 - Chesapeake Bay

§ 1268 - Great Lakes

§ 1269 - Long Island Sound

§ 1270 - Lake Champlain Basin Program

§ 1271 - Sediment survey and monitoring

§ 1271a - Research and development program

§ 1272 - Environmental dredging

§ 1273 - Lake Pontchartrain Basin

§ 1274 - Watershed pilot projects

Statutes at Large
Public Laws


Title 40 published on 2014-07-01

The following are ALL rules, proposed rules, and notices (chronologically) published in the Federal Register relating to 40 CFR Part 136 after this date.

  • 2015-04-20; vol. 80 # 75 - Monday, April 20, 2015
    1. 80 FR 21691 - Clean Water Act Methods Update Rule for the Analysis of Effluent; Comment Extension
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      Proposed rule; extension of the public comment period.
      EPA extends the public comment period for the proposed rule published February 19, 2015, (80 FR 8956) to May 20, 2015.
      40 CFR Part 136