# Monitoring.
**AGENCY:**
Environmental Protection Agency (EPA).
**ACTION:**
Direct Final Rule.
**SUMMARY:**
EPA is approving the use of updated versions of test procedures (i.e., analytical methods) for the determination of chemical, radiological, and microbiological pollutants and contaminants in wastewater and drinking water. These updated versions of analytical methods have been published by one or more of the following organizations: American Society for Testing Materials (ASTM), United States Geological Survey (USGS), United States Department of Energy (DOE), American Public Health Association (APHA), American Water Works Association (AWWA), and Water Environment Federation (WEF). Previously approved versions of the methods remain approved. Today's action will give the analytical community a larger selection of analytical methods. Today's action also corrects typographical errors and updates references where appropriate.
**DATES:**
This final rule is effective on May 16, 2001 without further notice, unless EPA receives adverse comment by March 19, 2001. If EPA receives such comment, EPA will publish a timely withdrawal in the *Federal Register* informing the public that this rule (or distinct amendments, paragraphs, or sections of this rule) will not take effect.
The incorporation by reference of the publications listed in today's rule is approved by the Director of the Federal Register as of May 16, 2001.
For judicial review purposes, this final rule is promulgated as of 1:00 p.m. (Eastern time) on January 30, 2001 as provided in 40 CFR 23.2 and 23.7.
**ADDRESSES:**
You may submit written comments either by mail or electronically. Send comments to the Methods Update Comment Clerk (W-99-21), U.S. Environmental Protection Agency, Water Docket, MC-4101, Ariel Rios Bldg., 1200 Pennsylvania Ave., NW., Washington, DC 20460. Submit electronic comments to *OW-Docket @epa.gov.* Please submit copies of any references cited in your comments. EPA would appreciate an original and 3 copies of your comments and enclosures (including references).
This *Federal Register* document is also available on the Internet at: *http://www.epa.gov/fedrgstr.* The record for this rulemaking has been established under docket number W-99-21. Supporting documents (including references and methods cited in this notice) are available for review at the U.S. Environmental Protection Agency, Water Docket, East Tower Basement, Room EB57, 401 M Street, SW., Washington, DC 20460. For access to the docket materials, call 202/260-3027 on Monday through Friday, excluding Federal holidays, between 9:00 a.m. and 3:30 p.m. Eastern Daylight Standard Time for an appointment.
Copies of final methods published by ASTM are available for a nominal cost through American Society for Testing and Materials, 100 Barr Harbor Drive, West Conshohocken, PA 19428-2959. Copies of final methods published by USGS are available for a nominal cost through the United States Geological Survey, U.S. Geological Survey Information Services, Box 25286, Federal Center, Denver, CO 80225-0425. Copies of final methods published by DOE are available for a nominal cost through the Environmental Measurements Laboratory, U.S. Department of Energy, 376 Hudson Street, New York, NY 10014-3621. Copies of Standard Methods are available for a nominal cost from the American Public Health Association, 1015 Fifteenth Street, NW., Washington, DC. 20005.
**FOR FURTHER INFORMATION CONTACT:**
For information regarding wastewater methods contact Dr. Maria Gomez-Taylor, Engineering and Analysis Division (4303), USEPA Office of Science and Technology, Ariel Rios Bldg., 1200 Pennsylvania Ave., NW., Washington, DC 20460 (e-mail: *[email protected]* ). For information regarding the drinking water methods, contact Dr. Richard Reding, Office of Ground Water and Drinking Water, U.S. Environmental Protection Agency, Cincinnati, Ohio 45268 (e-mail: *[email protected]* ).
**SUPPLEMENTARY INFORMATION:**
**Potentially Regulated Entities**
**A. Clean Water Act**
EPA Regions, as well as States, Territories, and Tribes, are authorized to implement the National Pollutant Discharge Elimination System (NPDES) program and issue permits that comply with the technology-based and water quality-based requirements of the Clean Water Act. In doing so, the NPDES permitting authority, including authorized States, Territories, and Tribes, make a number of discretionary choices associated with permit writing, including the selection of pollutants to be measured and, in many cases, limited in permits. If EPA has “approved” ( *i.e., * promulgated through rulemaking) standardized testing procedures for a given pollutant, the NPDES permit must specify one of the approved testing procedures or an approved alternate test procedure. Permitting authorities may, at their discretion, require the use of any method approved at 40 CFR part 136 in the permits they issue. Therefore, dischargers with NPDES permits could be affected by the standardization of testing procedures in this rulemaking, because NPDES permits may incorporate the testing procedures in today's rulemaking. In addition, when a State, Territory, or authorized Tribe provides certification of Federal licenses under Clean Water Act section 401, States, Territories, and Tribes are directed to use the standardized testing procedures. Categories and entities that may ultimately be affected include:
| Category | Examples of potentially regulated entities |
| --- | --- |
| Regional, State and Territorial Governments and Indian Tribes | States, Territories, and Tribes authorized to administer the NPDES permitting program; States, Territories, and Tribes providing certification under Clean Water Act section 401; Governmental NPDES permittees |
| Industry | Industrial NPDES permittees |
| Municipalities | Publicly-owned treatment works with NPDES permits |
**B. Safe Drinking Water Act**
Public water systems are the regulated entities required to conduct analyses to measure for contaminants in water samples. However, EPA Regions, as well as States, local, and tribal governments with primacy to administer the regulatory program for public water systems under the Safe Drinking Water Act, sometimes conduct analyses to measure for contaminants in water samples. If EPA has established a maximum contaminant level (“MCL”) for a given drinking water contaminant, the Agency also “approves” ( *i.e., * promulgates through rulemaking) standardized testing procedures for analysis of the contaminant. Once EPA standardizes such test procedures, analysis using those procedures (or approved alternate test procedures) is required. Public water systems required to test water samples must use one of the approved standardized test procedures. Categories and entities that may ultimately be regulated include:
| Category | Examples of potentially regulated entities | SIC |
| --- | --- | --- |
| State, Local, & Tribal Governments | States, local and tribal governments that analyze water samples on behalf of public water systems required to conduct such analysis; States, local, and tribal governments that themselves operate public water systems required to conduct analytic monitoring | 9511 |
| Industry | Industrial operators of public water systems | 4941 |
| Municipalities | Municipal operators of public water systems | 9511 |
C. These tables are not intended to be exhaustive, but rather provide a guide for readers regarding entities potentially regulated by this action. The tables list the types of entities that EPA is now aware could potentially be regulated by this action. Other types of entities not listed in the tables could also be regulated. To determine whether your facility is regulated by this action, you should carefully examine the applicability language at 40 CFR 141.2 (definition of public water system) and 40 CFR 136.1 (NPDES permits and CWA). If you have questions regarding the applicability of this action to a particular entity, consult the appropriate person listed in the preceding *FOR FURTHER INFORMATION CONTACT* section.
**Outline of Notice**
I. Legal Authorities
A. Clean Water Act
B. Safe Drinking Water Act
II. Overview of Methods Updates
A. Amendments to Methods at 40 CFR Part 136 for Monitoring Wastewater
B. Amendments to Methods at 40 CFR Part 141 for Monitoring Primary Drinking Water Contaminants
C. Amendments to Methods at 40 CFR Part 143 for Monitoring Secondary Drinking Water Contaminants
III. Reasons for Using Direct Final Rulemaking
IV. Description of the Amendments in Today's Actions
A. Approval of Updated Versions of Analytical Methods
1. ASTM Methods for Analyses of Wastewater and Drinking Water
2. APHA/AWWA/WEF Methods (Standard Methods) for Analyses of Wastewater and Drinking Water
3. USGS Methods for Analyses of Wastewater
4. DOE Methods for Analysis of Radionuclides in Drinking Water
B. Typographical Errors
C. Performance-based Measurement System
V. Administrative Requirements
A. Executive Order 12866: Regulatory Planning and Review
B. Regulatory Flexibility Act (RFA), as amended by the Small Business Regulatory Enforcement Fairness Act of 1996 (SBREFA), 5 U.S.C. 601 *et.seq.*
C. Unfunded Mandated Reform Act
D. Paperwork Reduction Act
E. National Technology Transfer and Advancement Act
F. Executive Order 13045: Protection of Children From Environmental Health Risks and Safety Risks
G. Executive Order 13132: Federalism
H. Executive Order 13084: Consultation and Coordination With Indian Tribal Governments
I. Congressional Review Act
VI. References
**I. Legal Authorities**
**A. Clean Water Act**
This regulation is promulgated under the authority of sections 301, 304(h), and 501(a) of the Clean Water Act (CWA), 33 U.S.C. 1311, 1314(h), 1361(a) (the “Act”). Section 301 of the Act prohibits the discharge of any pollutant into navigable waters unless the discharge complies with a National Pollutant Discharge Elimination System (NPDES) permit, issued under section 402 of the Act. Section 304(h) of the Act requires the EPA Administrator to “promulgate guidelines establishing test procedures for the analysis of pollutants that shall include the factors which must be provided in any certification pursuant to section 401 of this Act or permit applications pursuant to section 402 of this Act.” Section 501(a) of the Act authorizes the Administrator to “prescribe such regulations as are necessary to carry out his functions under this Act.” EPA publishes CWA analytical method regulations at 40 CFR part 136. The Administrator also has made these test procedures applicable to monitoring and reporting of NPDES permits (40 CFR part 122, §§ 122.21, 122.41, 122.44, and 123.25), and implementation of the pretreatment standards issued under section 307 of the Act (40 CFR part 403, §§ 403.10 and 403.12).
**B. Safe Drinking Water Act**
The Safe Drinking Water Act (SDWA), as amended in 1996, requires EPA to promulgate national primary drinking water regulations (NPDWRs) which specify maximum contaminant levels (MCLs) or treatment techniques for drinking water contaminants (SDWA section 1412 (42 U.S.C. 300g-1)). NPDWRs apply to public water systems pursuant to SDWA section 1401 (42 U.S.C. 300f(1)(A)). According to SDWA section 1401(1)(D), NPDWRs include “criteria and procedures to assure a supply of drinking water which dependably complies with such maximum contaminant levels; including quality control and testing procedures.* * *” (42 U.S.C. 300f(1)(D)). In addition, SDWA section 1445(a) authorizes the Administrator to establish regulations for monitoring to assist in determining whether persons are acting in compliance with the requirements of the SDWA (42 U.S.C. 300j-4). EPA's promulgation of analytical methods is authorized under these sections of the SDWA as well as the general rulemaking authority in SDWA section 1450(a), (42 U.S.C.300j-9(a)).
**II. Overview of Methods Updates**
EPA has promulgated analytical methods for all currently regulated wastewater and drinking water pollutants and contaminants. In most cases, EPA has approved use of more than one analytical method for measurement of a contaminant, and laboratories may use any approved method for determining compliance with a monitoring requirement. After any regulation is published, EPA may amend the regulations to approve new methods or modifications to approved methods.
Many of the analytical methods already promulgated by EPA have been published by other organizations, including the American Society for Testing Materials (ASTM), United States Geological Survey (USGS), and United States Department of Energy (DOE). In addition, three other organizations (American Public Health Association, American Water Works Association and Water Environment Federation) jointly publish *Standard Methods for Examination of Water and Wastewater* (referred to as “Standard Methods”). This rule approves use of updated versions of currently promulgated ASTM Methods, Standard Methods, and USGS methods at 40 CFR part 136 for compliance with wastewater standards and monitoring requirements. This rule also approves updated versions of currently promulgated methods in the tables of analytical methods listed at 40 CFR parts 141 and 143 for analyses of drinking water contaminants. The drinking water methods included in this rule are published by ASTM, Standard Methods, and DOE. These organizations publish updated manuals of methods from time to time. Some of the methods in the updated manuals contain no change from previously published editions. Other methods contain no significant changes, only minor technical improvements that make the methods safer and/or easier to use. Today's amendments contain only methods that have no changes or only minor technical improvements. No EPA methods are being updated.
This rule does not withdraw from use any currently promulgated method. For an NPDES permit, the permitting authority should decide the appropriate method based on the nature of the particular water sample to be tested and based on the measurement level of concern.
Today's amendments allow use of updated versions of methods, as outlined below. Each write-up uniquely defined by an identifying method number is counted as a single updated method, regardless of the nature of changes. Even if the only change to the method is its inclusion in a more recent published edition of a methods manual (e.g, 19th Edition of Standard Methods), it is considered an updated method.
**A. Amendments to Methods at 40 CFR Part 136 for Monitoring Wastewater**
Today's amendments allow use of 19 updated methods published by the American Society for Testing and Materials (ASTM) in the 1999 *Annual Book of ASTM Standards,* Vols. 11.01 and 11.02 for determinations of chemical and radionuclide contaminants, and physical parameters. Previously published versions of these methods, if already promulgated by EPA, remain approved.
Today's amendments also allow use of 189 updated methods published by the Standard Methods Committee in *Standard Methods for the Examination of Water and Wastewater,* 19th edition, 1995, and 20th edition, 1998, for determinations of chemical, microbiological and radionuclide contaminants, and physical parameters.
EPA is also amending 40 CFR Part 136 to update USGS Method I-1472-85 to Method I-4471-97 for determination of cadmium, and 21 methods published by USGS in open file reports and method compendiums. The 21 USGS methods are for the determination of one or more analytes . These methods employ the same analytical procedures and technologies that are employed in promulgated EPA and VCSB methods. These USGS methods will give the analytical community a greater selection of methods.
Finally, today's amendments correct typographical errors in the tables of methods, table footnotes, and sources.
**B. Amendments to Methods at 40 CFR Part 141 for Monitoring Primary Drinking Water Contaminants**
Today's amendments allow use of 12 updated methods that are published in the 1999 *Annual Book of ASTM Standards,* Vols. 11.01 and 11.02, for determinations of chemical and radionuclide contaminants, and physical parameters. Use of previously promulgated versions of ASTM methods that are published in these volumes, but have not been revised from previous editions, is also allowed.
Today's amendments also allow use of 62 updated methods published by the Standard Methods Committee in *Standard Methods for the Examination of Water and Wastewater,* 20th edition, 1998, for determinations of chemical, microbiological and radionuclide contaminants, and physical parameters.
Today's amendments allow use of six updated methods published by DOE in the document “EML Procedures Manual,” 28th Edition, Volume 1, 1997, for determinations of radionuclide contaminants.
**C. Amendments to Methods at 40 CFR Part 143 for Monitoring Secondary Drinking Water Contaminants**
Today's amendments list an updated version of one chemistry method (D 4327-97) published in the 1999 *Annual Book of ASTM Standards,* Vol. 11.01.
Today's amendments also list updated versions of 12 methods published by the Standard Methods Committee in *Standard Methods for the Examination of Water and Wastewater,* 20th edition, 1998, for determinations of secondary chemical contaminants and physical parameters.
**III. Reasons for Using Direct Final Rulemaking**
The Agency is promulgating these amendments as a “direct final” rule. EPA is publishing this rule without prior proposal because we view this as noncontroversial amendments and anticipate no adverse comment. Today's action approves updated versions of analytical methods published by several organizations in recent editions of methods manuals or recent publications. These updated versions contain no significant changes, only minor technical improvements that make the methods safer and/or easier to use. However, in the “Proposed Rules” section of today's *Federal Register* , we are publishing a separate document that will serve as the proposal to update these methods if adverse comments are filed. This rule will be effective on May 16, 2001 without further notice unless we receive adverse comment by March 19, 2001. If EPA receives adverse comment on one or more distinct amendments, paragraphs, or sections of this rulemaking, we will publish a timely withdrawal in the *Federal Register* indicating which provisions will become effective and which provisions are being withdrawn due to adverse comment. Any distinct amendment, paragraph, or section of today's rulemaking for which we do not receive adverse comment will become effective on the date set out above, notwithstanding any adverse comment on any other distinct amendment, paragraph, or section of today's rule. We will address all public comments in a subsequent final rule based on the companion proposed rule published elsewhere in today's *Federal Register* . We will not institute a second comment period on the action. Any parties interested in commenting must do so at this time.
**IV. Description of the Amendments in Today's Actions**
The Agency is amending the tables of methods at 40 CFR Parts 136, 141 and 143 to include recently updated versions of certain analytical methods and to correct typographical errors as explained below.
**A. Approval of Updated Versions of Analytical Methods**
The updated versions of methods listed at 40 CFR Parts 136, 141, and 143 discussed in this section contain updates of currently promulgated methods that interested parties, such as public water systems, NPDES permit writers, pretreatment coordinators, laboratory personnel, certification officials, and regulatory authorities, will consider to be noncontroversial and generally useful.
**1. American Society for Testing and Materials (ASTM) Methods for Analyses of Wastewater and Drinking Water**
In today's rule, EPA is amending 40 CFR Parts 136, 141, and 143 to include updated ASTM methods that are published in Vols. 11.01 and 11.02 of the ASTM's *Annual Book of Standards* [ASTM 1999]. The changes, if any, in the updated ASTM methods that are included in today's rule are editorial changes or minor technical clarifications. An example of an editorial change is the replacement of the unit for the measurement of radioactivity, picocurie, with the unit, Becquerel; 1 Becquerel equals 27 picocuries. The change to Becquerel conforms the ASTM methods to the unit of radioactivity measurement that is recommended by the International Union for Pure and Applied Chemistry (IUPAC), which is an international organization that recommends standards for units of measurement.
Examples of minor technical changes are recommendations for the safe handling of hazardous materials and safer or better ways to conduct certain hazardous or complicated analytical procedures. Some of the ASTM methods have been augmented with additional tables of method performance data. The updated ASTM methods do not contain substantive changes in procedures or instrumentation. Because EPA is not withdrawing approval of the currently approved version of any ASTM method, approval of the revised methods should have no adverse effect on users.
**a. Wastewater Methods**
Nineteen ASTM methods that are published in the 1999 *Annual Book of Standards* (ASTM 1999) and that have been updated from previous versions of these methods are approved in today's rule at 40 CFR Part 136 for wastewater compliance monitoring. Table 1 lists the 19 revised ASTM wastewater methods.
| Currently Approved Version | 1999 Edition Version |
| --- | --- |
| D 858-90 | D 858-95 |
| D 859-88 | D 859-94 |
| D 1068-90 | D 1068-96 |
| D 1125-91 | D 1125-95 |
| D 1126-86(92) | D 1126-96 |
| D 1246-82(88) | D 1246-95 |
| D 1252-88 | D 1252-95 |
| D 1426-93 | D 1426-98 |
| D 1688-90 | D 1688-95 |
| D 1889-88 | D 1889-94 |
| D 2036-91 | D 2036-98 |
| D 2972-93 | D 2972-97 |
| D 3557-90 | D 3557-95 |
| D 3558-90 | D 3558-94 |
| D 3559-90 | D 3559-96 |
| D 3859-93 | D 3859-98 |
| D 3867-90 | D 3867-99 |
| D 4190-82(88) | D 4190-94 |
| D 4382-91 | D 4382-95 |
**b. Drinking Water Methods for Primary and Secondary Drinking Water Contaminants**
Twelve ASTM methods that are published in the 1999 *Annual Book of Standards* (ASTM 1999) and that have been updated from previous versions of these methods are approved in today's rule at 40 CFR part 141 for drinking water compliance monitoring. Because one of the updated methods, D 4327-97, is also applicable to determinations of both chloride and sulfate, this method is also recommended in the table at 40 CFR part 143 for monitoring of these secondary contaminants. Three methods, D 3972 for uranium, and D 2460 and D 3454 for radium, have been updated to describe an optional computation of a total propagated uncertainty (TPU). EPA is approving these updated radionuclide methods. Although the TPU computation is technically satisfactory, it requires more effort than the uncertainty computation for radionuclide measurements specified at 40 CFR 141.25(c) and 141.26(a). EPA does not preclude use of the TPU computation, but the Agency believes that this computation is not necessary to obtain an accurate determination of uncertainty. Therefore, use of the computation specified in the CFR is recommended. Table 2 lists the 12 revised ASTM drinking water methods.
| Currently Approved Version | 1999 Edition Version |
| --- | --- |
| D 2036-91 | D 2036-98 |
| D 2460-90 | D 2460-97 |
| D 2907-91 | D 2907-97 |
| D 2972-93 | D 2972-97 |
| D 3454-91 | D 3454-97 |
| D 3559-95 | D 3559-96 |
| D 3645-93 | D 3645-97 |
| D 3859-93 | D 3859-98 |
| D 3972-90 | D 3972-97 |
| D 4327-91 | D 4327-97 |
| D 4785-88 | D 4785-93 |
| D 5174-91 | D 5174-97 |
**2. APHA/AWWA/WEF Methods (Standard Methods)**
**a.
Wastewater Methods**
In today's rule, EPA is amending 40 CFR part 136 to include 189 updated methods that are published in the 19th (APHA 1995) and 20th (APHA 1998) Editions of Standard Methods. 40 CFR Part 136 currently includes only methods listed in the 18th Edition (APHA 1992). Because EPA is not withdrawing approval of the currently promulgated version of any Standard Method, approval of these methods in this rulemaking should have no adverse effect on users.
Thirty of the 189 Standard Methods being approved contain minor technical and/or editorial revisions to the corresponding promulgated 18th Edition versions. The revisions are intended to improve method usability. Examples of these changes include: better explanations on conducting a specific step in the method; recommendations for safer handling or disposal of hazardous reagents; and options to use alternative procedures, reagents, or equipment (such as the option to use capillary columns in Method 6200 C, and the merger of Methods 6220 B and 6230 B into one method, 6200 C).
The other 159 methods remain unchanged from the currently promulgated methods. The only difference is that they are included in a more recent edition of Standard Methods and in some cases contain a different identifying method number. Method number changes between the 18th, 19th, and 20th editions occurred in 27 instances. These changes in numbering are provided in Table 3.
| 18th Edition | 19th Edition | 20th Edition |
| --- | --- | --- |
| 3500-Al D | 3500-Al D | 3500-Al B |
| 3500-As C | 3500-As C | 3500-As B |
| 3500-Be D | 3500-Be D | Dropped |
| 3500-Cd D | 3500-Cd D | Dropped |
| 3500-Ca D | 3500-Ca D | 3500-Ca B |
| 3500-Cr D | 3500-Cr D | 3500-Cr B |
| 3500-Cu D | 3500-Cu D | 3500-Cu B |
| 3500-Cu E | 3500-Cu E | 3500-Cu C |
| 3500-Fe D | 3500-Fe D | 3500-Fe B |
| 3500-Pb D | 3500-Pb D | 3500-Pb B |
| 3500-Mg D | 3500-Mg D | Dropped |
| 3500-Mn D | 3500-Mn D | 3500-Mn B |
| 3500-K D | 3500-K D | 3500-K B |
| 3500-Na D | 3500-Na D | 3500-Na B |
| 3500-V D | 3500-V D | 3500-V B |
| 3500-Zn E | 3500-Zn E | Dropped |
| 3500-Zn F | 3500-Zn F | 3500-Zn B |
| 4500-NH
C | Dropped | Dropped |
| 4500-NH
E | 4500-NH
C | 4500-NH
C |
| 4500-NH
F | 4500-NH
D | 4500-NH
D |
| 4500-NH
G | 4500-NH
E | 4500-NH
E |
| 4500-NH
H | 4500-NH
G | 4500-NH
G |
| 4500-S
E | 4500-S
F | 4500-S
F |
| 4500-Si D | 4500-Si D | 4500-SiO
C |
| 6210 B | 6210 B | 6200 B |
| 6220 B | 6220 B | 6220 C |
| 6230 C | 6230 B | 6230 C |
Five methods have been dropped from recent editions of Standards Methods. These methods are not being withdrawn from 40 CFR Part 136 because the methods are technically sound and there may be laboratories successfully using these methods. The five methods dropped from Standard Methods are Method 4500-NH <sub>3</sub> C, which was not included in the 19th edition, and Methods 3500-Be D, 3500-Cd D, 3500-Mg D, and 3500-Zn E, which were not included in the 20th edition.
**b. Drinking Water Methods for Primary and Secondary Drinking Water Contaminants**
EPA is also amending 40 CFR Parts 141 and 143 to add 71 methods that are published in the 20th Edition of Standard Methods. Previous promulgated versions of these methods, which are published in 18th and 19th Editions of Standard Methods, are listed at 40 CFR Parts 141 and 143. Because EPA is not withdrawing approval of the currently promulgated version of any Standard Method, approval of the updated revised methods in this rulemaking should have no adverse effect on users.
Of the 71 Standard Methods methods included in today's rule, 52 methods are unchanged from previous versions. The remaining 19 methods contain minor editorial changes or technical clarifications. Some of these revisions are minor modifications or voluntary but useful options, such as better explanations on conducting a specific step in the method; recommendations for safer handling or disposal of hazardous reagents; and options to use alternative procedures, reagents, or equipment. The method numbers for five methods changed between the 19th and 20th editions. These changes in numbering are provided in Table 4.
| 19th Edition | 20th Edition |
| --- | --- |
| 3500-Ca D | 3500-Ca B |
| 3500-Mg E | 3500-Mg B |
| 4500-Si D | 4500-SiO
C |
| 4500-Si E | 4500-SiO
D |
| 4500-Si F | 4500-SiO
E |
**3. USGS Methods for Analyses of Wastewater**
In today's rule, EPA is amending 40 CFR Part 136 to update USGS Method I-1472-85 to Method I-4471-97 for the determination of cadmium, and to allow use of 21 updated methods published by USGS in open file reports and method compendiums. At the request of USGS, the 21 methods are being promulgated for the determination of one or more analytes. These 21 USGS methods employ the same analytical procedures and technologies that are employed in approved EPA and voluntary consensus standards bodies (VCSB) methods. Approval of these USGS methods will give the analytical community a greater selection of methods.
**4. DOE Methods for Analyses of Radionuclides in Drinking Water**
In today's rule, EPA is amending 40 CFR Part 141 to add updated versions of six radionuclide methods that are published by DOE in the *EML Procedures Manual, * 28th Edition, Volume 1, 1997 (DOE 1997). The six methods are Ra-05, Sr-01, Sr-02, U-02, U-04, and Ga-01-R. Two of the methods in the 1997 DOE manual have been renumbered. Method Ra-05 is now Ra-04 and the method referred to as Sect. 4.5.4.3 in the 1990 manual has been given the method number Ga-01-R. Four of the methods in the 1997 DOE manual are unchanged. One method, Method Ga-01-R, has minor editorial changes. In Method U-02, alpha spectrometry for uranium determinations, the sample preparation procedure has been revised and now allows proceeding directly to the microprecipitation step. This change eliminates the mercury cathode electrolysis isotope separation step without affecting the sensitivity or selectivity of the analysis. In the 1990 version of Method U-02, this isotope separation step was optional for drinking water samples. This previous version of U-02 continues to be approved along with the 1990 versions of the other five DOE methods. The Agency, however, strongly recommends use of the 1997 version of U-02, because it eliminates the need for radiochemistry laboratories to handle large quantities of liquid mercury.
**B. Typographical Errors**
Today's rule corrects typographical errors in the CFR tables at 40 CFR Part 136, and also updates references as appropriate. All of the amendments to the tables are minor, and do not impose any new analytical requirements. Today's rule incorporates the following technical corrections:
(1) Footnote 38 to Table IB at 40 CFR Part 136.3 is corrected and updated to reference Trichlorotrifluorethane (1,1,2-trichloro-1,2,2-trifluoroethane; CFC-113) and n-hexane as approved extraction solvents for the oil and grease Standard Method 5520 B. Previously, trichlorofluoromethane (CFC-11) was incorrectly listed.
(2) The Standard Methods digestion procedure that precedes Kjeldahl Nitrogen determination is corrected to reference Standard Methods 4500-Norg B or C. Previously, Standard Methods 4500 NH <sub>3</sub> B or C were listed, which provide procedures for ammonia distillation and titrimetric determination (not digestion), respectively.
(3) Footnote 34 and its associated source listing is updated to reflect a change in method ownership for Direct Current Plasma (DCP) Method AES0029, developed by Fisons and acquired by Thermo Jarrell Ash.
(4) The reference for the Nickel Colorimetric (Heptoxime) method is corrected to include Standard Method 3500-Ni D from the 17th Edition instead of the 18th Edition. Method 3500-Ni D was not included in the 18th Edition of Standard Methods.
(5) Incorrect page number listings for USGS methods were corrected.
(6) The CFR contains two references with the same number. The second reference (40) in Section 136.3(b) has been renumbered (41) and reference (41) has been renumbered (42).
**C. Performance-based Measurement System**
On March 28, 1997, EPA proposed a rule (62 FR 14976) to streamline approval procedures and use of analytical methods in water programs through implementation of a performance-based approach to environmental measurements. On October 6, 1997, EPA published a notice of the Agency's intent to implement a performance-based measurement system (PBMS) in all media programs to the extent feasible (62 FR 52098). EPA's water program offices have developed a plan to implement PBMS. EPA anticipates that the final rule to implement PBMS in water programs will be based on the March 28, 1997 proposed rule.
**V. Administrative Requirements**
**A. Executive Order 12866: Regulatory Planning and Review**
Under Executive Order 12866 (58 FR 51735; October 4, 1993), the Agency must determine whether the regulatory action is “significant” and therefore subject to OMB review and the requirements of the Executive Order. The Order defines “significant regulatory action” as one that is likely to result in a rule that may:
(1) Have an annual effect on the economy of $100 million or more, or adversely affect in a material way the economy, a sector of the economy, productivity, competition, jobs, the environment, public health or safety, or State, local, or tribal governments or communities;
(2) Create a serious inconsistency or otherwise interfere with an action taken or planned by another agency;
(3) Materially alter the budgetary impact of entitlements, grants, user fees, or loan programs or the rights and obligations of recipients thereof; or
(4) Raise novel legal or policy issues arising out of legal mandates, the President's priorities, or the principles set forth in the Executive Order.
It has been determined that this rule is not a “significant regulatory action” under the terms of Executive Order 12866 and is therefore not subject to OMB review.
**B. Regulatory Flexibility Act (RFA), as amended by the Small Business Regulatory Enforcement Fairness Act of 1996 (SBREFA), 5 U.S.C. 601
et seq.**
The RFA generally requires an agency to prepare a regulatory flexibility analysis of any rule subject to notice and comment rulemaking requirements under the Administrative Procedure Act or any other statute unless the agency certifies that the rule will not have a significant economic impact on a substantial number of small entities. Small entities include small businesses, small organizations, and small governmental jurisdictions.
For purposes of assessing the impacts of today's rule on small entities, we defined: (1) Small businesses according to SBA size standards; (2) small governmental jurisdictions as governments of a city, county, town, school district or special district with a population less than 50,000; and (3) small organizations as any not-for-profit enterprise which is independently owned and operated and is not dominant in its field.
After considering the economic impacts of today's final rule on small entities, I certify that this action will not have a significant economic impact on a substantial number of small entities. This final rule will not impose any requirements on small entities. Today's rule approves new and revised versions of currently approved ASTM Methods, Standard Methods, United States Geological Survey (USGS), and United States Department of Energy (DOE) methods for compliance with wastewater monitoring and drinking water standards and monitoring requirements but does not require their use. Previous versions of these ASTM, Standard Methods, USGS, and DOE methods will not be withdrawn. Public water systems and laboratories performing analyses on behalf of these systems may continue to use the previous versions after the promulgation of today's rule. The final rule merely provides additional options. Any of the testing procedures currently approved at 40 CFR parts 136, 141, or 143 can be used if monitoring is otherwise required for this pollutant under the CWA or SDWA. This rule also makes minor technical corrections, amendments, and clarifications to the regulations.
**C. Unfunded Mandates Reform Act**
Title II of the Unfunded Mandates Reform Act of 1995 (UMRA), Public Law 104-4, establishes requirements for Federal agencies to assess the effects of their regulatory actions on State, local, and tribal governments and the private sector. Under section 202 of the UMRA, EPA generally must prepare a written statement, including a cost-benefit analysis, for proposed and final rules with “Federal mandates” that may result in expenditures to State, local, and tribal governments, in the aggregate, or to the private sector, of $100 million or more in any one year. Before promulgating an EPA rule for which a written statement is needed, section 205 of the UMRA generally requires EPA to identify and consider a reasonable number of regulatory alternatives and adopt the least costly, most cost-effective or least burdensome alternative that achieves the objectives of the rule. The provisions of section 205 do not apply when they are inconsistent with applicable law. Moreover, section 205 allows EPA to adopt an alternative other than the least costly, most cost-effective or least burdensome alternative if the Administrator publishes with the final rule an explanation why that alternative was not adopted.
Before EPA establishes any regulatory requirements that may significantly or uniquely affect small governments, including tribal governments, it must have developed under section 203 of the UMRA a small government agency plan. The plan must provide for notifying potentially affected small governments, enabling officials of affected small governments to have meaningful and timely input in the development of EPA regulatory proposals with significant Federal intergovernmental mandates, and informing, educating, and advising small governments on compliance with the regulatory requirements.
Today's rule contains no Federal mandates (under the regulatory provisions of Title II of the UMRA) for State, local, or tribal governments or the private sector. This rule imposes no enforceable duty on any State, local or tribal governments or the private sector. EPA has determined that this rule contains no regulatory requirements that might significantly or uniquely affect small governments. Thus, today's rule is not subject to the requirements of sections 202, 203, and 205 of the UMRA.
This rule approves the use of analytical methods for conducting analysis for contaminants in wastewater and drinking water and thus provides operational flexibility to laboratory analysts. Since the rule does not withdraw earlier versions of methods, EPA anticipates no increase in expenditure or burden.
**D. Paperwork Reduction Act**
This action does not impose an information collection burden under the provisions of the Paperwork Reduction Act, 44 U.S.C. 3501 *et seq.* This action merely provides additional options on the selection of testing procedures when monitoring is otherwise required under the CWA or SDWA. Any of the testing procedures approved at 40 CFR parts 136, 141, or 143 can be used if such monitoring is required for a pollutant or contaminant.
**E. National Technology Transfer and Advancement Act**
Section 12(d) of the National Technology Transfer and Advancement Act of 1995 (NTTAA), Public Law 104-113, section 12(d) (15 U.S.C. 272 note) directs EPA to use voluntary consensus standards in its regulatory activities unless to do so would be inconsistent with applicable law or otherwise impractical. Voluntary consensus standards are technical standards ( *e.g.,* material specifications, test methods, sampling procedures, business practices) that are developed or adopted by voluntary consensus standard bodies. NTTAA directs EPA to provide Congress, through the Office of Management and Budget (OMB), explanations when EPA decides not to use available and applicable voluntary consensus standards.
In this rulemaking EPA is approving newer versions of voluntary consensus standards published by ASTM and Standard Methods for many wastewater and drinking water contaminants. EPA recognizes that other voluntary consensus standards may also be available for the contaminants covered by this rule. In order to expedite publication of this rule as a direct final rule, EPA has chosen not to propose other voluntary consensus methods at this time. EPA plans to address the availability of other voluntary consensus methods in subsequent rules.
**F. Executive Order 13045: Protection of Children From Environmental Health Risks and Safety Risks**
Executive Order 13045 (62 FR 19885, April 23, 1997) applies to any rule that: (1) Is determined to be “economically significant” as defined under Executive Order 12866, and (2) concerns an environmental health or safety risk that EPA has reason to believe may have a disproportionate effect on children. If the regulatory action meets both criteria, the Agency must evaluate the environmental health or safety effects of the planned rule on children, and explain why the planned regulation is preferable to other potentially effective and reasonably feasible alternatives considered by the Agency. This rule is not subject to Executive Order 13045 because it is neither “economically significant” as defined under Executive Order 12866, nor does it concern an environmental health or safety risk that EPA has reason to believe may have a disproportionate effect on children.
**G. Executive Order 13132: Federalism**
Executive Order 13132, entitled “Federalism” (64 FR 43255, August 10, 1999), requires EPA to develop an accountable process to ensure “meaningful and timely input by State and local officials in the development of regulatory policies that have federalism implications.” “Policies that have federalism implications” is defined in the Executive Order to include regulations that have “substantial direct effects on the States, on the relationship between the national government and the States, or on the distribution of power and responsibilities among the various levels of government.”
This final rule does not have federalism implications. It will not have substantial direct effects on the States, on the relationship between the national government and the States, or on the distribution of power and responsibilities among the various levels of government, as specified in Executive Order 13132. Today's rule approves the use of additional analytical methods by laboratories conducting analysis in wastewater and drinking water. Today's action does not, however, require use of the alternative methods. The rule provides laboratory analysts with other options to the list of currently approved testing procedures under 40 CFR parts 136, 141, and 143 which can be used if monitoring is otherwise required for these pollutants under the CWA or SDWA. Thus, Executive Order 13132 does not apply to this rule.
**H. Executive Order 13084: Consultation and Coordination With Indian Tribal Governments**
Under Executive Order 13084, EPA may not issue a regulation that is not required by statute, that significantly or uniquely affects the communities of Indian tribal governments, and that imposes substantial direct compliance costs on those communities, unless the Federal government provides the funds necessary to pay the direct compliance costs incurred by the tribal governments, or EPA consults with those governments. If EPA complies by consulting, Executive Order 13084 requires EPA to provide to the Office of Management and Budget, in a separately identified section of the preamble to the rule, a description of the extent of EPA's prior consultation with representatives of affected tribal governments, a summary of the nature of their concerns, and a statement supporting the need to issue the regulation. In addition, Executive Order 13084 requires EPA to develop an effective process permitting elected officials and other representatives of Indian tribal governments “to provide meaningful and timely input in the development of regulatory policies on matters that significantly or uniquely affect their communities.”
Today's rule does not significantly or uniquely affect the communities of Indian tribal governments. This rule approves new and updated analytical methods for drinking water compliance monitoring and wastewater compliance monitoring. Accordingly, the requirements of section 3(b) of Executive Order 13084 do not apply to this rule.
**I. Congressional Review Act**
The Congressional Review Act, 5 U.S.C. 801 *et seq.* , as added by the Small Business Regulatory Enforcement Fairness Act of 1996 (SBREFA), generally provides that before a rule may take effect, the agency promulgating the rule must submit a rule report, which includes a copy of the rule, to each House of the Congress and to the Comptroller General of the United States. EPA will submit a report containing this rule and other required information to the U.S. Senate, the U.S. House of Representatives, and the Comptroller General of the United States prior to publication of the rule in the *Federal Register* . A major rule cannot take effect until 60 days after it is published in the *Federal Register* . This action is not a “major rule” as defined by 5 U.S.C. 804(2). This rule will be effective on May 16, 2001.
**VI. References**
APHA 1992. Eighteenth edition of Standard Methods for the Examination of Water and Wastewater, 1992, American Public Health Association, 1015 Fifteenth Street NW., Washington, DC 20005.
APHA 1995. Nineteenth edition of Standard Methods for the Examination of Water and Wastewater, 1995, American Public Health Association, 1015 Fifteenth Street NW., Washington, DC 20005.
APHA 1998. Twentieth edition of Standard Methods for the Examination of Water and Wastewater, 1998, American Public Health Association, 1015 Fifteenth Street NW., Washington, DC 20005.
ASTM 1999. 1999 Annual Book of ASTM Standards, Vols. 11.01 and 11.02, American Society of Testing and Materials, 100 Barr Harbor Drive, West Conshohocken, Pennsylvania 19428-2959.
AWWA 1996. “Standard Methods—A Closer Look,” Posavec, Steve, in Opflow, Vol.22, No.2, February 1996, American Water Works Association, 6666 West Quincy Avenue, Denver, CO 80235.
DOE 1997 “EML Procedures Manual”, 28th Edition, Volume 1, 1997. Available at the Environmental Measurements Laboratory, U.S. Department of Energy (DOE), 376 Hudson Street, New York, NY 10014-3621.
USGS 1989. Fishman, M.J., et al, “Methods for Analysis of Inorganic Substances in Water and Fluvial Sediments,” U.S. Department of the Interior, Techniques of Water-Resource Investigations of the U.S. Geological Survey, Denver, CO.
USGS 1992. “Methods of Analysis by the U.S. Geological Survey National Water Quality Laboratory—Determination of Total Phosphorus by Kjeldahl Digestion Method and an Automated Colorimetric Finish That Includes Dialysis” Open File Report (OFR) 92-146 of the U.S. Geological Survey, Denver, CO.
USGS 1993. “Methods of Analysis by the U.S. Geological Survey National Water Quality Laboratory—Determination of Inorganic and Organic Constituents in Water and Fluvial Sediment”, Open File Report (OFR) 93-125 of the U.S. Geological Survey, Denver, CO.
USGS 1993. “Methods of Analysis by the U.S. Geological Survey National Water Quality Laboratory—Determination of Chromium in Water by Graphite Furnace Atomic Absorption Spectrometry”, Open File Report (OFR) 93-449 of the U.S. Geological Survey, Denver, CO.
USGS 1994. “Methods of Analysis by the U.S. Geological Survey National Water Quality Laboratory—Determination of Triazine and Other Nitrogen-containing Compounds by Gas Chromatography with Nitrogen Phosphorus Detectors” of the U.S. Geological Survey, Denver, CO.
USGS 1997. “Methods of Analysis by the U.S. Geological Survey National Water Quality Laboratory—Determination of Molybdenum by Graphite Furnace Atomic Absorption Spectrophotometry”, Open File Report (OFR) 97-198 of the U.S. Geological Survey, Denver, CO.
USGS 1998 “Methods of Analysis by the U.S. Geological Survey National Water Quality Laboratory—Determination of Ammonia Plus Organic Nitrogen by a Kjeldahl Digestion Method and an Automated Photometric Finish that Includes Digest Cleanup by Gas Diffusion and an Automated Photometric Finish That Includes Digest Cleanup by Gas Diffusion”. Open File Report (OFR) 00-170 of the U.S. Geological Survey, Denver, CO.
USGS 1998. “Methods of Analysis by the U.S. Geological Survey National Water Quality Laboratory—Determination of Arsenic and Selenium in Water and Sediments by Graphite Furnace-Atomic Absorption Spectrometry” Open File Report (OFR) 98-639. Table IB, Note 49.
USGS 1998. “Methods of Analysis by the U.S. Geological Survey National Water Quality Laboratory—Determination of Elements in Whole-water Digests Using Inductively Coupled Plasma-Optical Emission Spectrometry and Inductively Coupled Plasma-Mass Spectrometry” , Open File Report (OFR) 98-165 of the U.S. Geological Survey, Denver, CO.
**List of Subjects**
Environmental protection, Analytical methods, Incorporation by reference, Reporting and recordkeeping requirements, Water pollution control.
Environmental protection, Chemicals, Incorporation by reference, Indian-lands, Intergovernmental relations, Radiation Protection, Reporting and recordkeeping requirements, Water supply.
Environmental protection, Chemicals, Incorporation by reference, Indian-lands, Water supply.
Dated: December 11, 2000.
Carol M. Browner,
Administrator.
**40 CFR Part 136**
For the reasons set out in the preamble, title 40, chapter I of the Code of Federal Regulations, is amended as follows:
**PART 136—GUIDELINES ESTABLISHING TEST PROCEDURES FOR THE ANALYSIS OF POLLUTANTS**
1. The authority citation for Part 136 continues to read as follows:
**Authority:**
Secs. 301, 304(h), 307, and 501(a) Pub. L. 95-217, 91 Stat. 1566, *et seq.* (33 U.S.C. 1251, *et seq.* ) (The Federal Water Pollution Control Act Amendments of 1972 as amended by the Clean Water Act of 1977.)
**40 CFR Part 136**
2. Section 136.3 is amended:
a. In paragraph (a) by revising Tables IA, IB, IC, ID, and IE.
b. In paragraph (b) revise references (6) and (10), remove reference (41), redesignate the second reference (40) as (41), redesignate reference (43) as (51), and add references (42) through (50) to read as follows:
§ 136.3
(a) * * *
| Parameter and units | Method | EPA | Standard | ASTM | USGS |
| --- | --- | --- | --- | --- | --- |
| Bacteria: | | | | | |
| 1. Coliform (fecal), number per 100 mL. | Most Probable Number (MPN), 5 tube | p.132 | 9221C E | | |
| 2. Coliform (fecal) in presence of chlorine, number per 100 mL. | MPN, 5 tube, 3 dilution, or | p.132 | 9221C E | | |
| 3. Coliform (total), number per 100 mL. | MPN, 5 tube, 3 dilution, or | p.114 | 9221B | | |
| 4. Coliform (total), in presence of chlorine, number per 100 mL. | MPN, 5 tube, 3 dilution, or | p. 114 | 9221B | | |
| 5. Fecal streptococci, number per 100 mL. | MPN, 5 tube, 3 dilution, | p. 139 | 9230B | | |
| | Plate count | p.143 | | | |
| Aquatic Toxicity: | | | | | |
| 6. Toxicity, acute, fresh water organisms, LC50, percent effluent. | Daphnia, Ceriodaphnia, Fathead Minnow, Rainbow Trout, Brook Trout, or Bannerfish Shiner mortality | Sec. 9 | | | |
| 7. Toxicity, acute, estuarine and marine organisms, LC50, percent effluent. | Mysid, Sheepshead Minnow, or Menidia spp. mortality | Sec. 9 | | | |
| 8. Toxicity, chronic, fresh water organisms, NOEC or IC25, percent effluent. | Fathead minnow larval survival and growth | 1000.0 | | | |
| 9. Toxicity, chronic, estuarine and marine organisms,NOEC or IC25, percent effluent. | Sheepshead minnow larval survival and growth | 1004.0 | | | |
| Parameter, units and method | Reference (method number or page) | EPA | Standard methods | ASTM | USGS | Other |
| --- | --- | --- | --- | --- | --- | --- |
| 1. Acidity, as CaCO
, mg/L: | | | | | | |
| Electrometric endpoint or phenolphthalein endpoint | 305.1 | 2310 B(4a) [18th, 19th, 20th] | D1067-92 | I-1020-85 | | |
| 2. Alkalinity, as CaCO3, mg/L: | | | | | | |
| Electrometric or Colormetric titration to pH 4.5, manual or automatic | 310.1 | 2320 B [18th, 19th, 20th] | D1067-92 | I-1030-85 | 973.43. | |
| | 310.2 | | | I-2030-85 | | |
| 3. Aluminum—Total,
mg/L; Digestion
followed by: | | | | | | |
| AA direct aspiration | 202.1 | 3111 D [18th, 19th] | | I-3051-85 | | |
| AA furnace | 202.2 | 3113 B [18th, 19th] | | | | |
| Inductively Coupled Plasma/Atomic Emission Spectrometry (ICP/AES) | 200.7 | 3120 B [18th, 19th, 20th] | | I-4471-97 | | |
| Direct Current Plasma (DCP) | | | D4190-94 | | Note 34. | |
| Colorimetric (Eriochrome cyanine R) | 3500-Al B [ 20th] and 3500-Al D [18th, 19th] | | | | | |
| 4. Ammonia (as N), mg/L: | | | | | | |
| Manual, distillation (at pH 9.5)
followed by: | 350.2 | 4500-NH
B [18th, 19th, 20th] | | | 973.49. | |
| Nesserization | 350.2 | 4500-NH
[18th] | D1426-98(A) | I-3520-85 | 973.49. | |
| Titration | 350.2 | 4500-NH
C [19th, 20th] and 4500-NH
C [18th] | | | | |
| Electrode | 350.3 | 4500-NH
D or E [19th, 20th] and 4500-NH
F or G [18th] | D1426-98(B) | | | |
| Automated phenate, or | 350.1 | 4500-NH
G [19th, 20th] and 4500-NH
H [18th] | | I-4523-85 | | |
| Automated electrode | | | | | Note 7. | |
| 5. Anitomy—Total,
mg/L; Digestion
followed by: | | | | | | |
| AA direct aspiration | 204.1 | 3111 B [18th, 19th] | | | | |
| AA furnace | 204.2 | 3113 B [18th, 19th] | | | | |
| ICP/AES | 200.7 | 3120 B [18th, 19th, 20th] | | | | |
| 6. Arsenic—Total,
mg/L: | | | | | | |
| Digestion
followed by | 206.5 | | | | | |
| AA gaseous hydride | 206.3 | 3114 B 4.d [18th, 19th] | D2972-97(B) | I-3062-85 | | |
| AA furnace | 206.2 | 3113 B [18th, 19th] | D2972-97(C) | I-4063-98 | | |
| ICP/AES
or | 200.7 | 3120 B [18th, 19th, 20th] | | | | |
| Colorimetric (SDDC) | 206.4 | 3500-As B [20th] and 3500-As C [18th, 19th] | 2972-97(A) | I-3060-85 | | |
| 7. Barium—Total,
mg/L; Digestion
followed by: | | | | | | |
| AA direct aspiration | 208.1 | 3111 D [18th, 19th] | | I-3084-85 | | |
| AA furnace | 208.2 | 3113 B [18th, 19th] | 4382-95 | | | |
| ICP/AES | 200.7 | 3120 B [18th, 19th, 20th] | | | | |
| DCP | | | | | Note 34. | |
| 8. Beryllium—Total,
mg/L; Digestion
followed by: | | | | | | |
| AA direct aspiration | 210.1 | 3111 D [18th, 19th] | D3645-93(88)(A) | I-3095-85 | | |
| AA furnace | 210.2 | 3113 B [18th, 19th] | D3645-93(88)(B) | | | |
| ICP/AES | 200.7 | 3120 B [18th, 19th, 20th] | | I-4471-97 | | |
| DCP, or | | | D4190-94 | | Note 34. | |
| Colorimetric (aluminon) | | 3500-Be D [18th, 19th] | | | | |
| 9. Biochemical oxygen demand (BOD
), mg/L: | | | | | | |
| Dissolved Oxygen Depletion | 405.1 | 5210 B [18th, 19th, 20th] | | 1-1578-78 | 973.44,
p. 17. | |
| 10. Boron
—Total, mg/L: | | | | | | |
| Colorimetric (curcumin) | 212.3 | 4500-B B [18th, 19th 20th] | | I-3112-85 | | |
| ICP/AES, or | 200.7
20th] | 3120 B [18th, 19th, 20th] | | I-4471-97 | | |
| DCP | | | D4190-94 | | Note 34. | |
| 11. Bromide, mg/L: | | | | | | |
| Titrimetric | 320.1 | | D1246-95(C) | I-1125-85 | p. S44. | |
| 12. Cadmium—Total,
mg/L; Digestion
followed by: | | | | | | |
| AA direct aspiration \\36\\ | 213.1 | 3111 B or C [18th, 19th] | D3557-95 (A or B) | I-3135-85 or I-3136-85. | 974.27,
p. 37. | |
| AA furnace | 213.2 | 3113 B [18th, 19th] | D3557-95(D) | I-4138-89 \\44\\ | | |
| ICP/AES \\36\\ | 200.7 | 3120 B [18th, 19th, 20th] | | I-4471-97 \\50\\ | | |
| DCP \\36\\ | | | D4190-94 | | Note 34. | |
| Voltametry,\\11\\ or | | | D3557-95(C) | | | |
| Colorimetric (Dithizone) | | 3550-Cd D [18th, 19th] | | | | |
| 13. Calcium—Total,
mg/L; Digestion
followed by: | | | | | | |
| AA direct aspiration | 215.1 | 3111 B [18th, 19th] | D511-93(B) | I-3152-85 | | |
| ICP/AES | 200.7 | 3120 B [18th, 19th, 20th] | | I-4471-97 \\50\\ | | |
| DCP, or | | | | | Note 34. | |
| Titrimetric (EDTA) | 215.2 | 3500-Ca B [20th] and 3500-Ca D [19th, 20th] | D551-93(A) | | | |
| 14. Carbonaceous biochemical oxygen demand (CBOD
), mg/L: \\12\\ | | | | | | |
| Dissolved Oxygen Depletion with nitrification inhibitor | | 521 B [18th, 19th, 20th] | | | | |
| 15. Chemical oxygen demand (COD), mg/L; | | | | | | |
| Titrimetric, | 410.1 | 5220 C [18th, 19th, 20th] | D1252-95(A) | I-3560-85 | 973.46,
p. 17. | |
| or | 410.2 | | | I-3562-85 | | |
| | 410.3 | | | | | |
| Spectrophotometric, manual or automatic | 410.4 | 5220 D [18th, 19th, 20th] | D1252-95(B) | I-3561-85 | Notes 13, 14. | |
| 16. Chloride, mg/L: | | | | | | |
| Titrimetric (silver nitrate) or | | 4500-Cl B [18th, 19th, 20th] | D512-89(B) | I-1183-85 | | |
| (Mercuric nitrate) | 325.3 | 4500-Cl C [18th, 19th, 20th] | D512-89(A) | I-1184-85 | 973.51. | |
| Colorimetric, manual or | | | | I-1187-85 | | |
| Automated (Ferricyanide) | 325.1 or 325.2 | 4500-Cl E [18th, 19th, 20th] | | I-2187-85 | | |
| 17. Chlorine—Total residual, mg/L; Titrimetric: | | | | | | |
| Amperometric direct | 330.1 | 4500-Cl D [18th, 19th, 20th] | D1253-86(92) | | | |
| Iodometric direct | 330.3 | 4500-Cl B [18th, 19th, 20th] | | | | |
| Back titration ether end-point \\15\\ or | 330.2 | 4500-Cl C [18th, 19th, 20th] | | | | |
| DPD-FAS | 330.4 | 4500-Cl F [18th, 19th, 20th] | | | | |
| Spectrophotometric, DPD Or Electrode | 330.5 | 4500-Cl G [18th, 19th, 20th] | | | Note 16. | |
| 18. Chromium VI dissolved, mg/L; 0.45 micron filtration followed by: | | | | | | |
| AA chelaation-extraction or | 218.4 | 3111 C [18th, 19th] | | I-1232-85 | | |
| Colorimetric (Diphenylcarbazide) | | 3500-Cr B [20th] and | D1687-92(A) | I-1230-85D | | |
| 19. Chromium—Total,
mg/L; Digestion
followed by: | | | | | | |
| AA direct aspiration \\36\\ | 218.1 | 3111 B [18th, 19th] | D1687-92(B) | I-3236-85 | 974.27. | |
| AA chelation-extraction | 218.3 | 3111 C [18th, 19th] | | | | |
| AA furnace | 218.2 | 3113 B [18th, 19th] | D1687-92(C) | I-3233-93 \\46\\ | | |
| ICP/AES \\36\\ | 200.7 | 3120 B [18th, 19th, 20th] | | | | |
| DCP,\\36\\ or | | | D4190-94 | | Note 34. | |
| Colorimetric (Diphenylcarbazide) | 3500-Cr B [20th and 3500-Cr D [18th, 19th] | | | | | |
| 20. Cobalt—Total,
mg/L; Digestion
followed by: | | | | | | |
| AA direct aspiration | 219.1 | 3111 B or C [18th, 19th] | D3558-94(A or B) | I-3239-85 | p. 37. | |
| AA furnace | 219.2 | 3113 B [18th, 19th] | D3558-94(C) | I-4243-89 \\44\\ | | |
| ICP/AES | 200.7 | 3120 B [18th, 19th, 20th] | | I-4471-97 | | |
| DCP | | | D4190-94 | | Note 34. | |
| 21. Color platinum cobalt units or dominant wavelength, hue, luminance purity: | | | | | | |
| Colorimetric (ADMI), or (Platinum cobalt), or | 110.1 | 2120 E [18th, 19th, 20th] | | | Note 18. | |
| Spectrophotometric | 110.2 | 2120 B [18th, 19th, 20th] | | I-1250-85 | | |
| | 110.3 | 2120 C [18th, 19th, 20th] | | | | |
| 22. Copper—Total,
mg/L; Digestion4 followed by: | | | | | | |
| AA direct aspiration \\36\\ | 220.1 | 3111 B or C [18th, 19th] | D1688-95(A or B) | I-3270-85 or I-3271-85 | 974.27
p. 37. | |
| AA furnace | 220.2 | 3113 B [18th, 19th] | D1688-95(C) | I-4274-89 \\44\\ | | |
| ICP/AES \\36\\ | 200.7 | 3120 B [18th, 19th, 20th] | | I-4471-97 \\44\\ | | |
| DCP \\36\\ or | | | D-4190-94 | | Note 34. | |
| Colorimetric (Neocuproine) or | | 3500-Cu B [20th] and 3500 Cu D [18th, 19th] | | | | |
| (Bicinchoninate) | | 3500-Cu C [20th] and 3500-As B [18th, 19th] | | | Note 19. | |
| 23. Cyanide—Total, mg/L: | | | | | | |
| Manual distillation with MgCl
followed by | | 4500-CN C [18th, 19th, 20th] | D2036-98(A) | | | |
| Titrimetric, or | | 4500-CN D [18th, 19th, 20th] | | | p. 22. | |
| Spectrophotometric, manual or | \\31\\ 335.2 | 4500-CN E [18th, 19th, 20th] | D2036-98(A). | I-3300-85 | | |
| Automated \\20\\ | \\31\\ 335.3 | | | I-4327-85 | | |
| 24. Cyanide amenable to chlorination, mg/L: | | | | | | |
| Manual distillation with MgCl
followed by titrimetric or Spectrophotometric | 335.1 | 4500-CN G [18th, 19th, 20th] | D2036-98(B) | | | |
| 25. Fluoride—Total, mg/L: | | | | | | |
| Manual distillation
followed by | | 4500-F B [18th, 19th, 20th] | | | | |
| Electrode, manual or | 340.2 | 4500-F C [18th, 19th, 20] | D1179-93(B) | | | |
| Automated | | | | I-4327-85 | | |
| Colorimetric (SPADNS) | 340.1 | 4500-F D [18th, 19th, 20th] | D1179-93(A) | | | |
| Or Automated complexone | 340.3 | 4500-F E [18th, 19th, 20th] | | | | |
| 26. Gold—Total,
mg/L; Digestion
followed by: | | | | | | |
| AA direct aspiration | 231.1 | 3111 B [18th, 19th] | | | | |
| AA furnace, or DCP | 231.2 | | | | | |
| | | | | | Note 34. | |
| 27. Hardness—Total, as CaCO
, mg/L | | | | | | |
| Automated colorimetric, | 130.1 | | | | | |
| Titrimetric (EDTA), or Ca plus Mg as their carbonates, by inductively coupled plasma or AA direct aspiration. (See Parameters 13 and 33). | 130.2 | 2340 B or C [18th, 19th, 20th] | D1126-86(92) | I-1338-85 | 973.52B. | |
| 28. Hydrogen ion (pH), pH units | | | | | | |
| Electrometric measurement, or Automated electrode | 150.1 | 4500-H+ B [18th, 19th, 20th] | D1293-84 (90)(A or B) | I-1586-85 | 973.41. | |
| | | | | I-2587-85 | Note 21. | |
| 29. Iridium—Total,
mg/L; Digestion
followed by: | | | | | | |
| AA direct aspiration or AA furnace | 235.1 | 3111 B [18th, 19th] | | | | |
| 30. Iron—Total,
mg/L; Digestion
followed by: | | | | | | |
| AA direct aspiration \\36\\ | 236.1 | 3111 B or C [18th, 19th] | D1068-96(A or B) | I-3381-85 | 974.27. | |
| AA furnace | 236.2 | 3113 B [18th, 19th] | D1068-96(C) ICP/AES \\36\\ | 200.7 | I-4471-97 \\50\\ | |
| DCP \\36\\ or | | | D4190-94 | | Note 34. | |
| Colorimetric (Phenanthroline) | | 3500-Fe B [20th] and 3500-Fe D [18th, 19th] | D1068-96(D) | | Note 22. | |
| 31. Kjeldahl Nitrogen—Total, (as N), mg/L: | | | | | | |
| Digestion and distillation followed by: | 351.3 | 4500-N
B or C and 4500-NH
B [18th, 19th, 20th] | D3590-89(A) | | | |
| Titration | 351.3 | | D3590-89(A) | | 973.48 | |
| Nesslerization | 351.3 | 4500-NH
C [18th] | D3590-89(A) | | | |
| Electrode | 351.3 | 4500-NH
C [19th, 20th] and 4500-NH3 E [18th] | | | | |
| Automated phenate colorimetric | 351.1 | 4500-NH
D or E [19th, 20th] and 4500-NH
F or G [18th] | I-4551-78 | | | |
| Semi-automated block digestor colorimetric | 351.2 | | D3590-89(B) | I-4515-91 \\45\\ | | |
| Manual or block digestor potentiometric | 351.4 | | D3590-89(A) | | | |
| Block Digester, followed by: | | | | | | |
| Auto distillation and Titration, or Nesslerization | | | | Note 40. | | |
| Flow injection gas diffusion | 973.483 | | | | Note 41. | |
| 32. Lead—Total,
mg/L; Digestion
followed by: | | | | | | |
| AA direct aspiration \\36\\ | 239.1 | 3111 B or C [18th, 19th] | D3559-96(A or B) | I-3399-85 | 974.27. | |
| AA furnace | 239.2 | 3113 B [18th, 19th] | D3559-96(D) | I-4403-89 \\44\\ | | |
| ICP/AES \\36\\ | 200.7 | 3120 B [18th, 19th, 20th] | | I-4471-9750 | | |
| DCP | | | D4190-94 | | Note 34. | |
| Voltametry
or | | | D3559'96(C) | | | |
| Colorimetric (Dithizone) | | 3500-Pb B [ 20th] and 3500-Pb D [18th, 19th] | | | | |
| 33. Magnesium—Total,
mg/L; Digestion
followed by: | | | | | | |
| AA direct aspiration | 242.1 | 3111 B [18th, 19th] | D511-93(B) | I-3447-85 | 974.27. | |
| ICP/AES | 200.7 | 3120 B [18th, 19th, 20th] | | I-4471-97 | | |
| DCP or | | | | | Note 34. | |
| Gravimetric | | 3500-Mg D [18th, 19th] | | | | |
| 34. Manganese—Total,
mg/L; Digestion
followed by: | | | | | | |
| AA direct aspiration | 243.1 | 3111 B [18th, 19th] | D858-95(A or B) | I-3454-85 | 974.27. | |
| AA furnace | 243.2 | 3113 B [18th, 19th] | D858-95(C) | | | |
| ICP/AES | 200.7 | 3120 B [18th, 19th, 20th] | | I-4471-97 | | |
| DCP,
or | | | D4190-94 | | Note 34. | |
| Colorimetric (Persulfate), or | 3500-Mn B [ 20th] and | 3500-Mn D [18th, 19th] | | | 920.203. | |
| (Periodate) | | | | | Note 23. | |
| 35. Mercury—Total,
mg/L: | | | | | | |
| Cold vapor, manual or | 245.1 | 3112 B [18th, 19th] | D3223-91 | I-3462-85 | 977.22. | |
| Automated | 245.2 | | | | | |
| Oxidation, purge and trap, and cold vapor atomic fluorescence spectrometry (ng/L) | 1631 | | | | | |
| 36. Molybdenum—Total,
mg/L; Digestion
followed by: | | | | | | |
| AA direct aspiration | 246.1 | 3111 D [18th, 19th] | | I-3490-85 | | |
| AA furnace | 246.2 | 3113 B [18th, 19th] | | I-3492-96 | | |
| ICP/AES | 200.7 | 3120 B [18th, 19th, 20th] | | I-4471-97 | | |
| DCP | | | | | Note 34. | |
| 37. Nickel—Total,
mg/L; Digestion
followed by: | | | | | | |
| AA direct aspiration | 249.1 | 3111 B or C [18th, 19th] | D1886-90(A or B) | I-3499-85 | | |
| AA furnace | 249.2 | 3113 B [18th, 19th] | D1886-90(C) | I-4503-89 | | |
| ICP/AES | 200.7 | 3120 B [18th, 19th, 20th] | | I-4471-97 | | |
| DCP,
or | | | D4190-94 | | Note 34. | |
| Colorimetric (heptoxime) | | 3500-Ni D [17th] | | | | |
| 38. Nitrate (as N), mg/L: | | | | | | |
| Colorimetric (Brucine sulfate), or Nitrate-nitrite N minus Nitrite N (See parameters 39 and 40) | 352.1 | | | | 973.50,
419D,
p. 28. | |
| 39. Nitrate-nitrite (as N), mg/L: | | | | | | |
| Cadmium reduction, Manual or | 353.3 | 4500-NO3
E [18th, 19th, 20th] | D3867-99(B) | | | |
| Automated, or | 353.2 | 4500-NO3
F [18th, 19th, 20th] | D3867-99(A) | I-4545-85 | | |
| Automated hydrazine | 353.1 | 4500-NO3
H [18th, 19th, 20th] | | | | |
| 40. Nitrite (as N), mg/L; Spectrophotometric: | | | | | | |
| Manual or | 354.1 | 4500-NO2
B [18th, 19th, 20th] | | | Note 25. | |
| Automated (Diazotization) | | | | I-4540-85 | | |
| 41. Oil and grease—Total recoverable, mg/L: | | | | | | |
| Gravimetric (extraction) | 413.1 | 5520B [18th, 19th, 20th] | | | | |
| Oil and grease and non-polar material, mg/L: Hexane extractable material (HEM): n-Hexane extraction and gravimetry | | 5520B [18th, 19th, 20th] | | | | |
| Silica gel treated HEM (SGT-HEM): Silica gel treatment and gravimetry | | | | | | |
| 42. Organic carbon—Total (TOC), mg/L: | | | | | | |
| Combustion or oxidation | 415.1 | 5310 B, C, or D [18th, 19th, 20th] | D2579-93 (A or B) | | 973.47,
p. 14. | |
| 43. Organic nitrogen (as N), mg/L: | | | | | | |
| Total Kjeldahl N (Parameter 31) minus ammonia N (Parameter 4) | | | | | | |
| 44. Orthophosphate (as P), mg/L; Ascorbic acid method: | | | | | | |
| Automated, or | 365.1 | 4500-P F [18th, 19th, 20th] | | I-4601-85 | 973.56. | |
| Manual single reagent | 365.2 | 4500'P E [18th, 19th, 20th] | D515-88(A) | | 973.55. | |
| Manual two reagent | 365.3 | | | | | |
| 45. Osmium—Total,
mg/L; Digestion
followed by: | | | | | | |
| AA direct aspiration, or | 252.1 | 3111 D [18th, 19th] | | | | |
| AA furnace | 252.2 | | | | | |
| 46. Oxygen, dissolved, mg/L: | | | | | | |
| Winkler (Azide modification), or | 360.2 | 4500-O C [18th, 19th, 20th] | D888-92(A) | I-1575-78 | 973.45B. | |
| Electrode | 360.1 | 4500-O G [18th, 19th, 20th] | D888-92(B) | I-1576-78 | | |
| 47. Palladium—Total,
mg/L; Digestion
followed by: | | | | | | |
| AA direct aspiration, or | 253.1 | 3111 B [18th, 19th] | | | p. S27. | |
| AA furnace | 253.2 | | | | p. S28. | |
| DCP | | | | | Note 34. | |
| 48. Phenols, mg/L: | | | | | | |
| Manual distillation | 420.1 | | | | Note 27. | |
| Followed by: | | | | | | |
| Colorimetric (4AAP) manual, or | 420.1 | | | | Note 27. | |
| Automated | 420.2 | | | | | |
| 49. Phosphorus (elemental), mg/L: | | | | | | |
| Gas-liquid chromatography | | | | | Note 28. | |
| 50. Phosphorus—Total, mg/L: | | | | | | |
| Persulfate digestion followed by | 365.2 | 4500-P B, 5 [18th, 19th, 20th] | | | 973.55. | |
| Manual or | 365.2 or 365.3 | 4500-P E [18th, 19th, 20th] | D515-88(A) | | | |
| Automated ascorbic acid reduction | 365.1 | 4500-P F [18th, 19th, 20th] | | 1—4600-85 | 973.56. | |
| Semi-automated block digestor | 365.4 | | D515-88(B) | I-4610-91 | | |
| 51. Platinum—Total,
mg/L: Digestion
followed by: | | | | | | |
| AA direct aspiration | 255.1 | 3111 B [18th, 19th] | | | | |
| AA furnace | 255.2 | | | | | |
| DCP | | | | | Note 34. | |
| 52. Potassium—Total,
mg/L: Digestion
followed by: | | | | | | |
| AA direct aspiration | 258.1 | 3111 B [18th, 19th] | | I-3630-85 | 973.53.3. | |
| ICP/AES | 200.7 | 3120 B [18th, 19th, 20th] | | | | |
| Flame photometric, or | | 3500-K B [20th] and 3500-K D [18th, 19th] | | | | |
| Colorimetric | | | | | 317 B. | |
| 53. Residue—Total, mg/L: | | | | | | |
| Gravimetric, 103-105° | 160.3 | 2540 B [18th, 19th, 20th] | | I-3750-85 | | |
| 54. Residue—filterable, mg/L: | | | | | | |
| Gravimetric, 180° | 160.1 | 2540 C [18th, 19th, 20th] | | I-1750-85 | | |
| 55. Residue—nonfilterable (TSS), mg/L: | | | | | | |
| Gravimetric, 103-105° post washing of residue | 160.2 | 2540 D [18th, 19th, 20th] | | I-3765-85 | | |
| 56. Residue—settleable, mg/L: | | | | | | |
| Volumetric, (Imhoff cone), or gravimetric | 160.5 | 2540 F [18th, 19th, 20th] | | | | |
| 57. Residue—Volatile, mg/L: | | | | | | |
| Gravimetric, 550° | 160.4 | | | I-3753-85 | | |
| 58. Rhodium—Total,
mg/L; Digestion
followed by: | | | | | | |
| AA direct aspiration, or | 265.1 | 3111 B [18th, 19th] | | | | |
| AA furnace | 265.2 | | | | | |
| 59. Ruthenium—Total,
mg/L; Digestion
followed by: | | | | | | |
| AA direct aspiration, or | 267.1 | 3111 B [18th, 19th] | | | | |
| AA furnace | 267.2 | | | | | |
| 60. Selenium—Total,
mg/L; Digestion
followed by: | | | | | | |
| AA furnace | 270.2 | 3113 B [18th, 19th] | D3859-98(B) | I-4668-98 | | |
| ICP/AES,
or | 200.7 | 3120 B [18th, 19th, 20th] | | | | |
| AA gaseous hydride | | 3114 B [18th, 19th] | D3859-98(A) | I—3667-85 | | |
| 61. Silica
—Dissolved, mg/L; 0.45 micron filtration followed by: | | | | | | |
| Colorimetric, Manual or | 370.1 | 4500-SiO
C [20th] and 4500-SiD [18th, 19th] | D859-94 | I-1700-85 | | |
| Automated (Molybdosilicate), or | | | | I-2700-85 | | |
| ICP | 200.7 | 3120 B [18th, 19th, 20th] | | I-4471-97 | | |
| 62. Silver—Total,
mg/L: Digestion
followed by: | | | | | | |
| AA direct aspiration | 272.1 | 3111 B or C [18th, 19th] | | I-3720-85 | 974.27,
p. 37. | |
| AA furnace | 272.2 | 3113 B [18th, 19th] | | I-4724-89 | | |
| ICP/AES | 200.7 | 3120 B [18th, 19th, 20th] | | I-4471-97 | | |
| DCP | | | | | Note 34. | |
| 63. Sodium—Total,
mg/L; Digestion
followed by: | | | | | | |
| AA direct aspiration | 273.1 | 3111 B [18th, 19th] | | I-3735-85 | 973.54. | |
| ICP/AES | 200.7 | 3120 B [18th, 19th, 20th] | | I-4471-97 | | |
| DCP, or | | | | | Note 34. | |
| Flame photometric | | 3500 Na B [20th] and 3500 Na D [18th, 19th] | | | | |
| 64. Specific conductance, micromhos/cm at 25° C: | | | | | | |
| Wheatstone bridge | 120.1 | 2510 B [18th, 19th, 20th] | D1125-95(A) | I-2781-85 | 973.40. | |
| 65. Sulfate (as SO
), mg/L: | | | | | | |
| Automated colorimetric (barium chloranilate) | 375.1 | | | | | |
| Gravimetric | 375.3 | 4500-SO
C or D [18th, 19th, 20th] | | | 925.54. | |
| Turbidimetric | 375.4 | | D516-90 | | 426C. | |
| 66. Sulfide (as S), mg/L: | | | | | | |
| Titrimetric (iodine), or | 376.1 | 4500-S
F [19th, 20th] or 4500-S
E [18th] | | I-3840-85 | | |
| Colorimetric (methylene blue) | 376.2 | 4500-S
D | | | | |
| 67. Sulfite (as SO
), mg/L: | | | | | | |
| Titrimetric (iodine-iodate) | 377.1 | 4500-SO
B [18th, 19th, 20th] | | | | |
| 68. Surfactants, mg/L: | | | | | | |
| Colorimetric (methylene blue) | 425.1 | 5540 C [18th, 19th, 20th] | D2330-88 | | | |
| 69. Temperature, °C: | | | | | | |
| Thermometric | 170.1 | 2550 B [18th, 19th, 20th] | | | Note 32. | |
| 70. Thallium—Total,
mg/L; Digestion
followed by: | | | | | | |
| AA direct aspiration | 279.1 | 3111 B [18th, 19th | | | | |
| AA furnace | 279.2 | | | | | |
| ICP/AES | 200.7 | 3120 B [18th, 19th, 20th] | | | | |
| 71. Tin—Total,
mg/L; Digestion
followed by: | | | | | | |
| AA direct aspiration | 282.1 | 3111 B [18th, 19th] | | I-3850-78 | | |
| AA furnace, or | 282.2 | 3113 B [18th, 19th] | | | | |
| ICP/AES | 200.7 | | | | | |
| 72. Titanium—Total,
mg/L; Digestion
followed by: | | | | | | |
| AA direct aspiration | 283.1 | 3111 D [18th, 19th] | | | | |
| AA furnace | 283.2 | | | | | |
| DCP | | | | | Note 34. | |
| 73. Turbidity, NTU: | | | | | | |
| Nephelometric | 180.1 | 2130 B [18th, 19th, 20th] | D1889-94(A) | I-3860-85 | | |
| 74. Vanadium—Total,
mg/L; Digestion
followed by: | | | | | | |
| AA direct aspiration | 286.1 | 3111 D [18th, 19th] | | | | |
| AA furnace | 286.2 | | D3373-93 | | | |
| ICP/AES | 200.7 | 3120 B[18th, 19th, 20th] | | I-4471-97 \\50\\ | | |
| DCP, or | | | D4190-94 | | Note 34. | |
| Colorimetric (Gallic Acid) | | 3500-V B [20th] and 3500-V D [18th, 19th] | | | | |
| 75. Zinc—Total,
, mg/L; Digestion
followed by: | | | | | | |
| AA direct aspiration \\36\\ | 289.1 | 3111 B or C [18th, 19th] | D1691-95(A or B) | I-3900-85 | 974.27,
p. 37. | |
| AA furnace | 289.2 | | | | | |
| ICP/AES \\36\\ | 200.7 | 3120 B [18th, 19th, 20
] | | I-4471-97 | | |
| DCP,
or | | | D4190-94 | | Note 34. | |
| Colorimetric (Dithizone) or | | 3500-Zn E [18th, 19th] | | | | |
| (Zincon) | | 3500-Zn B [20th] and 3500-Zn F [18th, 19th] | | | Note 33. | |
| Parameter | EPA method number | GC | GC/MS | HPLC | Other approved methods | Standard methods [Edition(s)] | ASTM | Other |
| --- | --- | --- | --- | --- | --- | --- | --- | --- |
| 1. Acenaphthene | 610 | 625, 1625 | 610 | 6440 B, 6410 B [18th, 19th, 20th] | D4657-92 | Note 9, p. 27. | | |
| 2. Acenaphthylene | 610 | 625, 1625 | 610 | 6440 B, 6410 B [18th, 19th, 20th] | D4657-92 | Note 9, p. 27. | | |
| 3. Acrolein | 603 | 604, 1624 | | | | | | |
| 4. Acrylonitrile | 603 | 624, 1624 | 610 | | | | | |
| 5. Anthracene | 610 | 625, 1625 | 610 | 6410 B 6440 B [18th, 19th, 20th] | D4657-92 | Note 9, p. 27. | | |
| 6. Benzene | 602 | 624, 1624 | | 6200 B [20th] and 6210 B [18th, 19th], 6200 C [20th] and 6220 B [18th, 19th] | | | | |
| 7. Benzidine | | 625, 1625 | 605 | | | Note 3, p.1. | | |
| 8. Benzo(a)anthracene | 610 | 625, 1625 | 610 | 6410 B, 6440 B [18th, 19th, 20th] | D4657-92 | Note 9, p. 27. | | |
| 9. Benzo(a)pyrene | 610 | 625, 1625 | 610 | 6410 B, 6440 B [18th, 19th, 20th] | D4657-92 | Note 9, p. 27. | | |
| 10. Benzo(b)fluoranthene | 610 | 625, 1625 | 610 | 6410 B 6440 B [18th, 19th, 20th] | D4657-92 | Note 9, p. 27. | | |
| 11. Benzo(g, h, i)perylene | 610 | 625, 1625 | 610 | 6410 B 6440 B [18th, 19th, 20th] | D4657-92 | Note 9, p. 27. | | |
| 12. Benzo(k)fluoranthene | 610 | 625, 1625 | 610 | 6410 B 6440 B [18th, 19th, 20th] | D4657-92 | Note 9, p. 27. | | |
| 13. Benzyl chloride | | | | | | Note 3, p. 130: Note 6, p. S102. | | |
| 14. Benzyl butyl phthalate | 606 | 625, 1625 | | 6410 B [18th, 19th, 20th] | | Note 9, p. 27. | | |
| 15. Bis(2-chloroethoxy)methane | 611 | 625, 1625 | | 6410 B [18th, 19th, 20th] | | Note 9, p. 27. | | |
| 16. Bis(2-chloroethyl)ether | 611 | 625, 1625 | | 6410 B [18th, 19th, 20th] | | Note 9, p. 27. | | |
| 17. Bis(2-ethylhexyl)phthalate | 606 | 625, 1625 | | 6200 C [20th] and 6230 B [18th, 19th], 6410 B [18th, 19th, 20th] | | Note 9, p. 27 | | |
| 18. Bromodichloromethane | 601 | 624, 1624 | | 6200 C [20th] and 6230 B [18th, 19th], 6200 B [20th] and 6210 B [18th, 19th] | | | | |
| 19. Bromoform | 601 | 624, 1624 | | 6200 C [20th] and 6230 B [18th, 19th], 6200 B [20th] and 6210 B [18th, 19th] | | | | |
| 20. Bromomethane | 601 | 624, 1624 | | 6200 C [20th] and 6230 B [18th, 19th], 6200 B [20th] and 6210 B [18th, 19th] | | | | |
| 21. 4-Bromophenylphenyl ether | 611 | 625, 1625 | | 6410 B [18th, 19th, 20th] | | Note 9, p. 27. | | |
| 22. Carbon tetrachloride | 601 | 624, 1624 | | 6200 C [20th] and 6230 B [18th, 19th], 6410 B [18th, 19th, 20th] | | Note 3, p. 130. | | |
| 23. 4-Chloro-3-methylphenol | 604 | 625, 1625 | | 6410 B, 6420 B [18th, 19th, 20th] | | Note 9, p. 27. | | |
| 24. Chlorobenzene | 601, 602 | 624, 1624 | | 6200 B [20th] and 6210 B [18th, 19th], 6200 C [20th] and 6220 B [18th, 19th], 6200 C [20th] and 6230 B [18th, 19th] | | Note 3, p. 130. | | |
| 25. Chloroethane | 601 | 624, 1624 | | 6200 B [20th] and 6210 B [18th, 19th], 6200 C [20th] and 6230 B [18th, 19th] | | | | |
| 26. 2-Chloroethylvinyl ether | 601 | 624, 1624 | | 6200 B [20th] and 6210 B [18th, 19th], 6200 C [20th] and 6230 B [18th 19th] | | | | |
| 27. Chloroform | 601 | 624, 1624 | | 6200 B [20th] and 6210 B [18th, 19th], 6200 C [20th] and 6230 B [18th 19th] | | Note 3, p. 130. | | |
| 28. Chloromethane | 601 | 624, 1624 | | 6200 B [20th] and 6210 B [18th, 19th], 6200 C [20th] and 6230 B [18th 19th] | | | | |
| 29. 2-Chloronaphthalene | 612 | 625, 1625 | | 6410 B [18th, 19th, 20th] | | Note 9, p. 27. | | |
| 30. 2-Chlorophenol | 604 | 625, 1625 | | 6410 B [18th, 19th, 20th] | | Note 9, p. 27. | | |
| 31. 4-Chlorophenylphenl ether | 611 | 625, 1625 | | 6410 B [18th, 19th, 20th] | | Note 9, p. 27. | | |
| 32. Chrysene | 610 | 625, 1625 | 610 | 6410 B [18th, 19th, 20th] | D4657-92 | Note 9, p. 27. | | |
| 33. Dibenzo(a,h)anthracene | 610 | 625, 1625 | 610 | 6410 B, 6440 B [18th, 19th, 20th] | D4657-92 | Note 9, p. 27. | | |
| 34. Dibromochloromethane | 601 | 624, 1624 | | 6200 B [20th] and 6210 B [18th, 19th], 6200 C [20th] and 6230 B [18th 19th] | | | | |
| 35. 1,2-Dichlorobenzene | 601, 602, 612 | 624, 625, 1625 | | 6200 B [20th] and 6220 B [18th, 19th], 6200 C [20th] and 6230 B [18th 19th], 6410 B [18th, 19th, 20th] | | Note 9, p. 27. | | |
| 36. 1,3-Dichlorobenzene | 601, 602, 612 | 624,625, 1625 | | 6200 B [20th] and 6220 B [18th, 19th], 6200 C [20th] and 6230 B [18th 19th], 6410 B [18th, 19th, 20th] | | Note 9, p. 27. | | |
| 37. 1,4-Dichlorobenzene | 601, 602, 612 | 624, 625, 1625 | | 6200 B [20th] and 6220 B [18th, 19th], 6200 C [20th] and 6230 B [18th 19th], 6410 B [18th, 19th, 20th] | | Note 9, p. 27. | | |
| 38. 3,3-Dichlorobenzidine | | 625, 1625 | 605 | 6410 B [18th, 19th, 20th] | | | | |
| 39. Dichlorodifuoromethane | 601 | | | 6200 B [20th] and 6230 B [18th, 19th] | | | | |
| 40. 1,1-Dichloroethane | 601 | 624, 1624 | | 6200 B [20th] and 6210 B [18th, 19th] | | | | |
| 41. 1,2-Dichloroethane | 601 | 624, 1624 | | 6200 B [20th] and 6210 B [18th, 19th], 6200 C [20th] and 6230 B [18th, 19th] | | | | |
| 42. 1,1-Dichloroethene | 601 | 624, 1624 | | 6200 B [20th] and 6210 B [18th, 19th], 6200 C [20th] and 6230 B [18th, 19th] | | | | |
| 43. trans 1,2-Dichloroethene | 601 | 624, 1624 | | 6200 B [20th] and 6210 B [18th, 19th], 6200 C [20th] and 6230 B [18th, 19th] | | | | |
| 44. 2,4-Dichlorophenol | 604 | 625, 1625 | | 6410 B [18th, 19th, 20th] | | Note 9, p. 27. | | |
| 45. 1,2-Dichloropropane | 601 | 624, 1624 | | 6200 B [20th] and 6210 B [18th, 19th], 6200 C [20th] and 6230 B [18th, 19th] | | | | |
| 46. cis-1,3-Dichloropropene | 601 | 624, 1624 | | 6200 B [20th] and 6210 B [18th, 19th], 6200 C [20th] and 6230 B [18th, 19th] | | | | |
| 47. trans-1,3-Dichloropropene | 601 | 624, 1624 | | 6200 B [20th] and 6210 B [18th, 19th], 6200 C [20th] and 6230 B [18th, 19th] | | | | |
| 48. Diethyl phthalate | 606 | 625, 1625 | | 6410 B [18th, 19th, 20th] | | Note 9, p. 27. | | |
| 49. 2,4-Dimethylphenol | 604 | 625, 1625 | | 6410 B, 6420 B [18th, 19th, 20th] | | Note 9, p. 27. | | |
| 50. Dimethyl phthalate | 606 | 625, 1625 | | 6410 B [18th, 19th, 20th] | | Note 9, p. 27. | | |
| 51. Di-n-butyl phthalate | 606 | 625, 1625 | | 6410 B [18th, phthalate 19th, 20th] | | Note 9, p. 27. | | |
| 52 Di-n-octyl phthalate | 606 | 625, 1625 | | 6410 B [18th, phthalate 19th, 20th] | | Note 9, p. 27. | | |
| 53. 2,3-Dinitrophenol | 604 | 625, 1625 | | 6410 B, 6420 B [18th, 19th, 20th] | | | | |
| 54. 2,4-Dinitrotoluene | 609 | 625, 1625 | | 6410 B [18th, 19th, 20th] | | Note 9, p. 27. | | |
| 55. 2,6-Dinitrotoluene | 609 | 625, 1625 | | 6410 B [18th, 19th, 20th] | | Note 9, p. 27. | | |
| 56. Epichlorohydrin | | | | | | Note 3, p. 130; Note 6, p. S102. | | |
| 57. Ethylbenzene | 602 | 624, 1624 | | 6200 B [20th] and 6210 B [18th, 19th], 6200 C [20th] and 6220 B [18th, 19th] | | | | |
| 58. Fluoranthene | 610 | 625, 1625 | 610 | 6410 B, 6440 B [18th, 19th, 20th] | D4657-92 | Note 9, p. 27. | | |
| 59. Fluorene | 610 | 625, 1625 | 610 | 6410 B, 6440 B [18th, 19th, 20th] | D4657-92 | Note 9, p. 27. | | |
| 60. 1,2,3,4,6,7,8-Heptachlorodibenzofuran | | 1613 | | | | | | |
| 61. 1,2,3,4,7,8,9-Heptachlorodibenzofuran | | 1613 | | | | | | |
| 62. 1,2,3,4,6,7,8-Heptachlorodibenzo-
-dioxin | | 1613 | | | | | | |
| 63. Hexachlorobenzene | 612 | 625, 1625 | | 6410 B [18th, 19th, 20th] | | Note 9, p. 27. | | |
| 64. Hexachlorobutadiene | 612 | 625, 1625 | | 6410 B [18th, 19th, 20th] | | Note 9, p. 27. | | |
| 65. Hexachlorocyclo- pentadiene | 612 | 625, 1625B | | 6410 B [18th, 19th, 20th] | | Note 9, p. 27. | | |
| 66. 1,2,3,4,7,8-Hexachlorodibenzofuran | | 1613 | | | | | | |
| 67. 1,2,3,6,7,8-Hexachlorodibenzofuran | | 1613 | | | | | | |
| 68. 1,2,3,7,8,9-Hexachlorodibenzofuran | | 1613 | | | | | | |
| 69. 2,3,4,6,7,8-Hexachlorodibenzofuran | | 1613 | | | | | | |
| 70. 1,2,3,4,7,8-Hexachlorodibenzo-
-dioxin | | 1613 | | | | | | |
| 71. 1,2,3,6,7,8-Hexachlorodibenzo-
-dioxin | | 1613 | | | | | | |
| 72. 1,2,3,7,8,9-Hexachlorodibenzo-
-dioxin | | 1613 | | | | | | |
| 73. Hexachloroethane | 616 | 625, 1625 | | 6410 B [18th, 19th, 20th] | | Note 9, p. 27. | | |
| 74. Ideno(1,2,3-cd)pyrene | 610 | 625, 1625 | 610 | 6410 B, 6440 B [18th, 19th, 20th] | D4657-92 | Note 9, p. 27. | | |
| 75. Isophorone | 609 | 625, 1625 | | 6410 B [18th, 19th, 20th] | | Note 9, p. 27. | | |
| 76. Methylene chloride | 601 | 624, 1624 | | 6200 C [18th, 19th, 20th] | | Note 3, p. 130. | | |
| 77. 2-Methyl-4,6-dinitrophenol | 604 | 625, 1625 | | 6420 B, 6410 B [18th, 19th, 20th] | | Note 9, p. 27. | | |
| 78. Naphthalene | 610 | 625, 1625 | 610 | 6440 B, 6410 B [18th, 19th, 20th] | | Note 9, p. 27. | | |
| 79. Nitrobenzene | 609 | 625, 1625 | | 6410 B [18th, 19th, 20th] | D4657-92 | Note 9, p. 27. | | |
| 80. 2-Nitrophenol | 604 | 625, 1625 | | 6410 B, 6420 B [18th, 19th, 20th] | | Note 9, p. 27. | | |
| 81. 4-Nitrophenol | 604 | 625, 1625 | | 6410 B, 6420 B [18th, 19th, 20th] | | Note 9, p. 27. | | |
| 82. N-Nitrosodimethylamine | 607 | 625, 1625 | | 6410 B [18th, 19th, 20th] | | Note 9, p. 27. | | |
| 83. N-Nitrosodi-n-propylamine | 607 | 625, 1625 | | 6410 B [18th, 19th, 20th] | | Note 9, p. 27. | | |
| 84. N-Nitrosodiphenylamine | 607 | 625, 1625 | | 6410 B [18th, 19th, 20th] | | Note 9, p. 27. | | |
| 85. Octachlorodibenzofuran | | 1613 | | | | | | |
| 86. Octachlorodibenzo-
-dioxin | | 1613 | | | | | | |
| 87. 2,2-Oxybis(1-chloropropane) | 611 | 625, 1625 | | 6410 B [18th, 19th, 20th] | | | | |
| 88. PCB-1016 | 608 | 625 | | 6410 B [18th, 19th, 20th] | | Note 3, p. 43. | | |
| 89. PCB-1221 | 608 | 625 | | 6410 B [18th, 19th, 20th] | | Note 3, p. 43. | | |
| 90. PCB-1232 | 608 | 625 | | 6410 B [18th, 19th, 20th] | | Note 3, p. 43. | | |
| 91. PCB-1242 | 608 | 625 | | 6410 B [18th, 19th, 20th] | | Note 3, p. 43. | | |
| 92. PCB-1248 | 608 | 625 | | | | | | |
| 93. PCB-1254 | 608 | 625 | | 6410 B [18th, 19th, 20th] | | Note 3, p. 43. | | |
| 94. PCB-1260 | 608 | 625 | | 6410 B, 6630 B [18th, 19th, 20th] | | Note 3, p. 43. | | |
| 95. 1,2,3,7,8- Pentachlorodibenzofuran | | 1613 | | | | | | |
| 96. 2,3,4,7,8- Pentachlorodibenzofuran | | 1613 | | | | | | |
| 97. 1,2,3,7,8,-Pentachlorodibenzo-
-dioxin | | 1613 | | | | | | |
| 98. Pentachlorophenol | 604 | 625, 1625 | | 6410 B, 6630 B [18th, 19th, 20th] | | Note 3, p. 140; Note 9, p. 27. | | |
| 99. Phenanthrene | 610 | 625, 1625 | 610 | 6410 B, 6440 B [18th, 19th, 20th] | D4657-92 | Note 9, p. 27. | | |
| 100. Phenol | 604 | 625, 1625 | | 6420 B, 6410 B [18th, 19th, 20th] | | Note 9, p. 27. | | |
| 101. Pyrene | 610 | 625, 1625 | 610 | 6440 B, 6410 B [18th, 19th, 20th] | D4675-92 | Note 9, p. 27. | | |
| 102. 2,3,7,8-Tetrachlorodibenzofuran | | 1613 | | | | | | |
| 103. 2,3,7,8-Tetrachlorodibenzo-
-dioxin | | 613, 1613 | | | | | | |
| 104. 1,1,2,2- Tetrachlooethane | 601 | 624, 1624 | | 6200 B [20th] and 6210 B [18th, 19th], 6200 C [20th] and 6230 B [18th, 19th] | | Note 3, p. 130. | | |
| 105. Tetrachloroethene | 601 | 624, 1624 | | 6200 C [20th] and 6230 B [18th, 19th], 6410 B [18th, 19th, 20th] | | Note 3, p. 130. | | |
| 106. Toluene | 602 | 624. 1624 | | 6200 B [20th] and 6210 B [18th, 19th], 6200 C [20th] and 6220 B [18th, 19th] | | | | |
| 107. 1,2,4-Trichlorobenzene | 612 | 625, 1625 | | 6410 B [18th, 19th, 20th] | | Note 3, p. 130; Note 9, p. 27. | | |
| 108. 1,1,1-Trichloroethane | 601 | 624, 1624 | | 6200 B [20th] and 6210 B [18th, 19th], 6200 C [20th] and 6230 B [18th, 19th] | | | | |
| 109. 1,1,2-Trichloroethane | 601 | 624, 1624 | | 6200 B [20th] and 6210 B [18th, 19th], 6200 C [20th] and 6230 B [18th, 19th] | | Note 3, p. 130. | | |
| 110. Trichloroethene | 601 | 624, 1624 | | 6200 B [20th] and 6210 B [18th, 19th], 6200 C [20th] and 6230 B [18th, 19th] | | | | |
| 111. Trichlorofluoro- | 601 | 624 | | 6200 B [20th] and 6210 B [18th, 19th], 6200 C [20th] and 6230 B [18th, 19th] | | | | |
| 112. 2,4,6-Trichlorophenol | 604 | 625, 1625 | | 6420 B, 6410 B [18th, 19th, 20th] | | Note 9, p. 27. | | |
| 113. Vinyl chloride | 601 | 624, 1624 | | 6200 B [20th] and 6210 B [18th, 19th], 6200 C [20th] and 6230 B [18th, 19th] | | | | |
| Parameter | Method | EPA | Standard methods 18th, 19th, 20th Ed. | ASTM | Other |
| --- | --- | --- | --- | --- | --- |
| 1. Aldrin | GC | 608 | 6630 B & C | D3086-90 | Note 3, p. 7; Note 4, p. 27; note 8. |
| | GC/MS | 625 | 6410 B | | |
| 2. Ametryn | GC | | | | Note 3, p. 83; Note 6, p S68. |
| 3. Aminocarb | TLC | | | | Note 3, p. 94; Note 6, p. S16. |
| 4. Atraton | GC | | | | Note 3, p. 83; Note 6, p. S68. |
| 5. Atrazine | GC | | | | Note 3, p. 83; Note 6, p. S68; Note 9. |
| 6. Azinphos methyl | GC | | | | Note 3, p. 25; Note 6, p. S51. |
| 7. Barban | TLC | | | | Note 3, p. 104; Note 6, p. S64. |
| 8. α-BHC | GC | 608 | 6630 B & C | 3086-90 | Note 3, p. 7; Note 8. |
| | GC/MS | 625 | 6410 B | | |
| 9. β-BHC | GC | 608 | 6630 C | D3086-90 | Note 8. |
| | GC/MS | 625 | 6410 B | | |
| 10. δ-BHC | GC | 608 | 6630 C | D3086-90 | Note 8. |
| | GC/MS | 625 | 6410 B | | |
| 11. δ-BHC (Lindane) | GC | 608 | 6630 B & C | D3086-90 | Note 3, p. 7; Note 4, p. 27; Note 8. |
| | GC/MS | 625 | 6410 B | | |
| 12. Captan | GC | | 6630 B | D3086-90 | Note 3, p. 7. |
| 13. Carbaryl | TLC | | | | Note 3, p. 94, Note 6, p. S60. |
| 14. Carbophenothion | GC | | | | Note 4, p. 27; Note 6, p. S73. |
| 15. Chlordane | GC | 608 | 6630 B & C | D3086-90 | Note 3, p. 7; Note 4, p. 27; Note 8. |
| | GC/MS | 625 | 6410 B | | |
| 16. Chloropropham | TLC | | | | Note 3, p. 104; Note 6, p. S64. |
| 17. 2,4-D | GC | | 6640 B | | Note 3, p. 115; Note 4, p. 40. |
| 18. 4,4′-DDD | GC | 608 | 6630 B & C | D3086-90 | Note 3, p. 7; Note 4, p. 27; Note 8. |
| | GC/MS | 625 | 6410 B | | |
| 19. 4,4′-DDE | GC | 608 | 6630 B & C | D3086-90 | Note 3, p. 7; Note 4, p. 27; Note 8. |
| | GC/MS | 625 | 6410 B | | |
| 20. 4,4′-DDT | GC | 608 | 6630 B & C | D3086-90 | Note 3, p. 7; Note 4, p. 27; Note 8. |
| | GC/MS | 625 | 6410 B | | |
| 21. Demeton-O | GC | | | | Note 3, p. 25; Note 6, p. S51. |
| 22. Demeton-S | GC | | | | Note 3, p. 25; Note 6, p. S51. |
| 23. Diazinon | GC | | | | Note 3, p. 25; Note 4, p. 27; Note 6, p. S51. |
| 24. Dicamba | GC | | | | Note 3, p. 115. |
| 25. Dichlofenthion | GC | | | | Note 4, p. 27; Note 6, p. S73. |
| 26. Dichloran | GC | | 6630 B & C | | Note 3, p. 7. |
| 27. Dicofol | GC | | | D3086-90 | |
| 28. Dieldrin | GC | 608 | 6630 B & C | | Note 3, p. 7; Note 4, p. 27; Note 8. |
| | GC/MS | 625 | 6410 B | | |
| 29. Dioxathion | GC | | | | Note 4, p. 27; Note 6, p. S73. |
| 30. Disulfoton | GC | | | | Note 3, p. 25; Note 6 p. S51. |
| 31. Diuron | TLC | | | | Note 3, p. 104; Note 6, p. S64. |
| 32. Endosulfan I | GC | 608 | 6630 B & C | D3086-90 | Note 3, p. 7; Note 4, p. 27; Note 8. |
| | GC/MS | 625 | 6410 B | | |
| 33. Endosulfan II | GC | 608 | 6630 B & C | D3086-90 | Note 3, p. 7; Note 8. |
| | GC/MS | 625 | 6410 B | | |
| 34. Endosulfan Sulfate | GC | 608 | 6630 C | | Note 8. |
| | GC/MS | 625 | 6410 B | | |
| 35. Endrin | GC | 608 | 6630 B & C | D3086-90 | Note 3, p. 7; Note 4, p. 27; Note 8. |
| | GC/MS | 625 | 6410 B | | |
| 36. Endrin aldehyde | GC | 608 | | | Note 8. |
| | GC/MS | 625 | | | |
| 37. Ethion | GC | | | | Note 4, p. 27; Note 6, p. S73. |
| 38. Fenuron | TLC | | | | Note 3, p. 104; Note 6, p. S64. |
| 39. Fenuron-TCA | TLC | | | | Note 3, p. 104; Note 6, p. S64. |
| 40. Heptachlor | GC | 608 | 6630 B & C | D3086-90 | Note 3, p. 7; Note 4, p. 27; Note 8. |
| | GC/MS | 625 | 6410 B | | |
| 41. Heptachlor epoxide | GC | 608 | 6630 B & C | D3086-90 | Note 3, p. 7; Note 4, p. 27; Note 6, p. S73; Note 8. |
| | GC/MS | 625 | 6410 B | | |
| 42. Isodrin | GC | | | | Note 4, p. 27; Note 6, p. S73. |
| 43. Linuron | GC | | | | Note 3, p. 104; Note 6, p. S64. |
| 44. Malathion | GC | | 6630 C | | Note 3, p. 25; Note 4, p. 27; Note 6, p. S51. |
| 45. Methiocarb | TLC | | | | Note 3, p. 94; Note 6, p. S60. |
| 46. Methoxychlor | GC | | 6630 B &C | D3086-90 | Note 3, p. 7; Note 4, p. 27; Note 8. |
| 47. Mexacarbate | TLC | | | | Note 3, p. 94; Note 6, p.S60. |
| 48. Mirex | GC | | 6630 B & C | | Note 3, p. 7; Note 4, p. 27. |
| 49. Monuron | TLC | | | | Note 3, p. 104; Note 6, p. S64. |
| 50. Monuron | TLC | | | | Note 3, p. 104; Note 6, p. S64. |
| 51. Nuburon | TLC | | | | Note 3, p. 104; Note 6, p. S64. |
| 52. Parathion methyl | GC | | 6630 C | | Note 3, p. 25; Note 4, p. 27. |
| 53. Parathion ethyl | GC | | 6630 C | | Note 3, p. 25; Note 4, p. 27. |
| 54. PCNB | GC | | 6630 B & C | | Note 3, p. 7. |
| 55. Perthane | GC | | | D3086-90 | Note 4, p. 27. |
| 56. Prometron | GC | | | | Note 3, p. 83; Note 6, p. S68; Note 9. |
| 57. Prometryn | GC | | | | Note 3, p. 83; Note 6, p. S68; Note 9. |
| 58. Propazine | GC | | | | Note 3, p. 83; Note 6, p. S68; Note 9. |
| 59. Propham | TLC | | | | Note 3, p. 104; Note 6, p. S64. |
| 60. Propoxur | TLC | | | | Note 3, p. 94; Note 6, p. S60. |
| 61. Secbumeton | TLC | | | | Note 3, p. 83; Note 6, p. S68. |
| 62. Siduron | TLC | | | | Note 3, p. 104; Note 6, p. S64. |
| 63. Simazine | GC | | | | Note 3, p. 83; Note 6, p. S68; Note 9. |
| 64. Strobane | GC | | 6630 B & C | | Note 3, p. 7. |
| 65. Swep | TLC | | | | Note 3, p. 104; Note 6, p. S64. |
| 66. 2,4,5-T | GC | | 6640 B | | Note 3, p. 115; Note 4, p. 40. |
| 67. 2,4,5-TP (Silvex) | GC | | 6640 B | | Note 3, p. 115; Note 4, p. 40. |
| 68. Terbuthylazine | GC | | | | Note 3, p. 83; Note 6, p. S68. |
| 69. Toxaphene | GC | 608 | 6630 B & C | D3086-90 | Note 3, p. 7; Note 4, p. 27; Note 8. |
| | GC/MS | 625 | 6410B | | |
| 70. Trifluralin | GC | | 6630 B | | Note 3, p. 7; Note 9. |
| Parameter and units | Method | Reference (method number or page) | EPA | Standard methods 18th, 19th, 20th Ed. | ASTM | USGS |
| --- | --- | --- | --- | --- | --- | --- |
| 1. Alpha-Total, pCi per liter | Proportional or scintillation counter | 900 | 7110 B | D1943-90. | pp. 75 and 78. | |
| 2. Alpha-Counting error, pCi per liter | Proportional or scintillation counter | Appendix B | 7110 B | D1943-90 | p. 79. | |
| 3. Beta-Total, pCi per liter | Proportional counter | 900.0 | 7110 B | D1890-90 | pp. 75 and 78. | |
| 4. Beta-Counting error, pCi | Proportional counter | Appendix B | 7110 B | D1890-90 | p. 79. | |
| 5. (a) Radium Total pCi per liter | Proportional counter | 903.0 | 7500Ra B | D2460-90 | | |
| (b) Ra, pCi per liter | Scintillation counter | 903.1 | 7500Ra C | D3454-91 | p. 81. | |
(b) * * *
**References, Sources, Costs, and Table Citations**
(6) American Public Health Association. 1992, 1995, and 1998. Standard Methods for the Examination of Water and Wastewater. 18th, 19th, and 20th Edition (respectively). Amer. Publ. Hlth. Assoc., 1015 15th Street NW., Washington, DC 20005. Table IA, Note 4. Tables IB, IC, ID, IE.
(10) Annual Book of ASTM Standards, Water, and Environmental Technology, Section 11, Volumes 11.01 and 11.02, 1994 and 1999 in 40 CFR 136.3, Tables IB, IC, ID, and IE.
(42) USEPA, January 1999 Errata for the Effluent and Receiving Water Testing Manuals: Acute Toxicity of Effluents and Receiving Waters to Freshwater and Marine Organisms; Short-Term Methods for Estimating the Chronic Toxicity of Effluents and Receiving Waters to Marine and Estuarine Organisms. U.S. Environmental Protection Agency, Office of Research and Development, Duluth, MN. EPA-600/R-98-182.
(43) “Methods of Analysis by the U.S. Geological Survey National Water Quality Laboratory—Determination of Inorganic and Organic Constituents in Water and Fluvial Sediment”, Open File Report (OFR) 93-125. Available from: U.S. Geological Survey, Denver Federal Center, Box 25425, Denver, CO 80225. Table IB, Note 44; Table IC, Note 9.
(44) “Methods of Analysis by the U.S. Geological Survey National Water Quality Laboratory—Determination of Ammonium Plus Organic Nitrogen by a Kjeldahl Digestion Method and an Automated Photmetric Finish that Includes Digest Cleanup by Gas Diffusion”, Open File Report (OFR) 00-170. Available from: U.S. Geological Survey, Denver Federal Center, Box 25425, Denver, CO 80225. Table IB, Note 45.
(45) “Methods of Analysis by the U.S. Geological Survey National Water Quality Laboratory—Determination of Chromium in Water by Graphite Furnace Atomic Absorption Spectrometry”, Open File Report (OFR) 93-449. Available from: U.S. Geological Survey, Denver Federal Center, Box 25425, Denver, CO 80225. Table IB, Note 46.
(46) “Methods of Analysis by the U.S. Geological Survey National Water Quality Laboratory—Determination of Molybdenum by Graphite Furnace Atomic Absorption Spectrophotometry”, Open File Report (OFR) 97-198. Available from: U.S. Geological Survey, Denver Federal Center, Box 25425, Denver, CO 80225. Table IB, Note 47.
(47) “Methods of Analysis by the U.S. Geological Survey National Water Quality Laboratory—Determination of Total Phosphorus by Kjeldahl Digestion Method and an Automated Colorimetric Finish That Includes Dialysis” Open File Report (OFR) 92-146. Available from: U.S. Geological Survey, Denver Federal Center, Box 25425, Denver, CO 80225. Table IB, Note 48.
(48) “Methods of Analysis by the U.S. Geological Survey National Water Quality Laboratory—Determination of Arsenic and Selenium in Water and Sediments by Graphite Furnace-Atomic Absorption Spectrometry” Open File Report (OFR) 98-639. Table IB, Note 49.
(49) “Methods of Analysis by the U.S. Geological Survey National Water Quality Laboratory—Determination of Elements in Whole-water Digests Using Inductively Coupled Plasma-Optical Emission Spectrometry and Inductively Coupled Plasma-Mass Spectrometry”, Open File Report (OFR) 98-165. Available from: U.S. Geological Survey, Denver Federal Center, Box 25425, Denver, CO 80225. Table IB, Note 50.
(50) “Methods of Analysis by the U.S. Geological Survey National Water Quality Laboratory—Determination of Triazine and Other Nitrogen-containing Compounds by Gas Chromatography with Nitrogen Phosphorus Detectors” U.S.Geological Survey Open File Report 94-37. Available from: U.S. Geological Survey, Denver Federal Center, Box 25425, Denver, CO 80225. Table ID, Note 9.
(c) * * *
(d) * * *
(e) * * *
**40 CFR Part 141**
**PART 141—NATIONAL PRIMARY DRINKING WATER REGULATIONS**
1. The authority citation for Part 141 continues to read as follows:
**Authority:**
42 U.S.C. 300f, 300g-1, 300g-2 300g-3, 300g-4, 300g-5, 300g-6, 300j-4, 300j-9, and 300j-11.
**40 CFR Part 141**
2. Section 141.21 is amended by revising footnote 1 to the table in paragraph (f)(3) to read as follows:
§ 141.21
(f) * * *
(3) * * *
<sub>1</sub> Standard Methods for the Examination of Water and Wastewater, 18th edition (1992), 19th edition (1995), or 20th edition (1998). American Public Health Association, 1015 Fifteenth Street, NW., Washington, DC 20005. The cited methods published in any of these three editions may be used.
**40 CFR Part 141**
3. Section 141.23 is amended by revising the table to read as follows:
§ 141.23
(k) * * *
(1) * * *
| Contaminant | Methodology | EPA | ASTM | SM
(18th, 19th ed.) | SM
(20th, ed.) | Other |
| --- | --- | --- | --- | --- | --- | --- |
| 1. Alkalinity | Titrimetric | | D1067-92B | 2320 B | 2320 B | |
| | Electrometric titration | | | | | I-1030-85 |
| 2. Antimony | Inductively Coupled Plasma (ICP)-Mass | 200.8 | | | | |
| | Spectrometry | | | | | |
| | Hydride-Atomic Absorption | | D3697-92 | | | |
| | Atomic Absorption; Platform | 200.9 | | | | |
| | Atomic Absorption; Furnance | | | 3113 B | | |
| 3. Arsenic | Inductively Coupled Plasma | 200.7 | | 3120 B | 3120 B | |
| | ICP-Mass Spectrometry | 200.8 | | | | |
| | Atomic Absorption; Platform | 200.9 | | | | |
| | Atomic Absorption; Furnace | | D2972-97C | 3113 B | | |
| | Hydride Atomic Absorption | | D2972-97B | 3114 B | | |
| 4. Asbestos | Transmission Electron Microscopy | 100.1 | | | | |
| | Transmission Electron Microscopy | 100.2 | | | | |
| 5. Barium | Inductively Coupled Plasma | 200.7 | | 3120 B | 3120B | |
| | ICP-Mass Spectrometry | 200.8 | | | | |
| | Atomic Absorption; Direct | | | 3111 D | | |
| | Atomic Absorption; Furnace | | | 3113 B | | |
| 6. Berylium | Inductively Coupled Plasma | 200.7 | | 3120 B | 3120B | |
| | ICP-Mass Spectrometry | 200.8 | | | | |
| | Atomic Absorption; Platform | 200.9 | | | | |
| | Atomic Absorption; Furnace | | D3645-97B | 3113 B | | |
| 7. Cadmium | Inductively Coupled Plasma | 200.7 | | | | |
| | ICP-Mass Spectrometry | 200.8 | | | | |
| | Atomic Absorption; Platform | 200.9 | | | | |
| | Atomic Absorption; Furnace | | | 3113 B | | |
| 8. Calcium | EDTA titrimetric | | D511-93A | 3500-Ca D | 3500-Ca | |
| | Atomic Absorption; Direct Aspiration | | D511-93B | 3111 B | | |
| | Inductively Coupled Plasma | 200.7 | | 3120 B | 3120 B | |
| 9. Chromium | Inductively Coupled | 200.7 | | 3120 B | 3120 B | |
| | ICP-Mass Spectrometry | 200.8 | | | | |
| | Atomic Absorption; Platform | 200.9 | | | | |
| | Atomic Absorption; Furnace | | | 3113 B | | |
| 10. Copper | Atomic Absorption; Furnace | | D1688-95C | 3113 B | | |
| | Atomic Absorption; Direct Aspiration | | D1688-95A | 3111 B | | |
| | Inductively Coupled Plasma | 200.7 | | 3120 B | 3120 B | |
| | ICP-Mass spectrometry | 200.8 | | | | |
| | Atomic Absorption; Platform | 200.9 | | | | |
| 11. Conductance | Conductivity | | D1125-95A | 2510 B | 2510 B | |
| 12. Cyanide | Manual Distillation followed by | | D2036-98A | 4500-CN
C | 4500-CN
C | |
| | Spectrophotometric, Amenable | | D2036-98B | 4500-CN
G | 4500-CN
G | |
| | Spectrophotometric Manual | | D2036-98A | 4500-CN
E | 4500-CN
E | I-3300-85 |
| | Spectrophotometric Semi-automated | 335.4 | | | | |
| Selective Electrode | | 4500-CN- F | D4500-CN- F | | | |
| 13. Fluoride | Ion Chromatography | 300.0 | D4327-97 | 4110 B | 4110 B | |
| | Manual Distill.; Color. SPADNS | | | 4500-F
B,D | 4500-F
B,D | |
| | Manual Electrode | | D1179-93B | 4500-F
C | 4500-F
C | |
| | Automated Electrode | | | | | 380-75WE \\11\\ |
| | Automated Alizarin | | | 4500-F
E | 4500-F | 129-71W \\11\\ |
| 14. Lead | Atomic Absorption; Furnace | | D3559-96D | 3113 B | | |
| | | | | | | |
| | ICP-Mass spectrometry | 200.8 | | | | |
| | Atomic Absorption; Platform | 200.9 | | | | |
| | Differential Pulse Anodic Stripping Voltammetry | | | | | Method 1001 \\15\\ |
| 15. Magnesium | Atomic Absorption | | D511-93 B | 3111 B | | |
| | ICP | 200.7 | | 3120 B | 3120 B | |
| | Complexation Titrimetric Methods | | D511-93 A | 3500-Mg E | 3500-Mg B | |
| 16. Mercury | Manual, Cold Vapor | 245.1 | D3223-97 | 3112 B | | |
| | Automated, Cold Vapor | 245.2 | | | | |
| | ICP-Mass Spectrometry | 200.8 | | | | |
| 17. Nickel | Inductively Coupled Plasma | 200.7 | | 3120 B | 3120 B | |
| | ICP-Mass Spectrometry | 200.8 | | | | |
| | Atomic Absorption; Platform | 200.9 | | | | |
| | Atomic Absorption; Direct | | | 3111 B | | |
| | Atomic Absorption; Furnace | | | 3113 B | | |
| 18. Nitrate | Ion Chromatography | 300.0 | D4327-97 | 4110 B | 4110 B | B-1011 |
| | Automated Cadmium Reduction | 353.2 | D3867-90A | 4500-NO
F | 4500-NO
F | |
| | Ion Selective Electrode | | | 4500-NO
D | 4500-NO
D | 601 |
| | Manual Cadmium Reduction | | D3867-90B | 4500-NO
E | 4500-NO
E | |
| 19. Nitrite | Ion Chromatography | 300.0 | D4327-97 | 4110 B | 4110 B | B-1011 |
| | Automated Cadmium Reduction | 353.2 | D3867-90A | 4500-NO
F | 4500- NO
F | |
| | Manual Cadmium Reduction | | D3867-90B | 4500-NO
E | 4500-NO
E | |
| | Spectrophotometric | | | 4500-NO
B | 4500-NO
B | |
| 20. Ortho-phosphate \\12\\ | Colorimetric, Automated, Ascorbic Acid | 365.1 | | 4500-P F | 4500-P F | |
| | Colorimetric, ascorbic acid, single reagent | | D515-88A | 4500-P E | 4500-P E | |
| | Colorimetric Phosphomolybdate | | | | | I-1601-85 |
| | Automated-segmented Flow | | | | | I-2601-90 |
| | Automated Discrete | | | | | I-2598-85 |
| | Ion Chromatography | 300.0 | D4327-97 | 4110 B | 4110 B | |
| 21. pH | Electrometric | 150.1 | D1293-95 | 4500-H
B | 4500-H+ B | |
| | | 150.2 | | | | |
| 22. Selenium | Hydride-Atomic Absorption | | D3859-98A | 3114 B | | |
| | ICP-Mass Spectrometry | 200.8 | | | | |
| | Atomic Absorption; Platform | 200.9 | | | | |
| | Atomic Absorption; Furnace | | D3859-98B | 3113 B | | |
| 23. Silica | Colorimetric, Molybdate Blue; | | | | | I-1700-85 |
| | Automated-segmented Flow | | | | | I-2700-85 |
| | Colorimetric | | D859-94 | | | |
| | Molybdosilicate | | | 4500-Si D | 4500-SiO
C | |
| | Heteropoly blue | | | 4500-Si E | 4500-SiO
D | |
| | Automated for Molybdate-reactive Silica | | | 4500-Si F | 4500-SiO
E | |
| | Inductively Coupled Plasma | 200.7 | | 3120 B | 3120 B | |
| 24. Sodium | Inductively Coupled Plasma | 200.7 | | | | |
| | Atomic Absorption; Direct Aspiration | | | 3111 B | | |
| 25. Temperature | Thermometric | | | 2550 | 2550 | |
| 26. Thallium | ICP-Mass Spectrometry | 200.8 | | | | |
| | Atomic Absorption; Platform | 200.9 | | | | |
**40 CFR Part 141**
4. Section 141.24 is amended by revising the 11th, 12th and last sentences in paragraph (e)(1), before the Table, to read as follows:
§ 141.24
(e) * * *
(1) * * * Method 6651 shall be followed in accordance with Standard Methods for the Examination of Water and Wastewater, 18th edition (1992), 19th edition (1995), or 20th edition (1998), American Public Health Association (APHA); any of these three editions may be used. Method 6610 shall be followed in accordance with Standard Methods for the Examination of Water and Wastewater, (18th Edition Supplement) (1994), or with the 19th edition (1995) or 20th edition (1998) of Standard Methods for the Examination of Water and Wastewater; any of these three editions may be used. * * * ASTM Method D 5317-93 is available in the *Annual Book of ASTM Standards * (1999), Vol. 11.02, American Society for Testing and Materials, 100 Barr Harbor Drive, West Conshohocken, PA 19428, or in any edition published after 1993.
**40 CFR Part 141**
5. Section 141.25 is amended by revising the Table in paragraph (a) to read as follows:
§ 141.25
(a) * * *
| Contaminant | Methodology | Reference (method or page number) | EPA | EPA | EPA | EPA | SM | ASTM | USGS | DOE | Other |
| --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- |
| Naturally occurring: | | | | | | | | | | | |
| Gross alpha
and beta | Evaporation | 900.0 | p 1 | 00-01 | p 1 | 302, 7110 B | | R-1120-76 | | | |
| Gross alpha | Co-precipitation | | | 00-02 | | 7110 C | | | | | |
| Radium 226 | Radon emanation, | 903.1 | p 16 | Ra-04 | p 19 | 7500-Ra C | D 3454-97 | R-1141-76 | Ra-04 | N.Y. | |
| | Radiochemical | 903.0 | p 13 | Ra-03 | | 304, 305, 7500-Ra B | D 2460-97 | R-1140-76 | | | |
| Radium 228 | Radiochemical | 904.0 | p 24 | Ra-05 | p 19 | 7500-Ra D | | R-1142-76 | | N.Y. | |
| | | | | | | | | | | N.J. | |
| Uranium | Radiochemical | 908.0 | | | | 7500-U B | | | | | |
| | Fluorometric | 908.1 | | | | 7500-U C (17th Ed.) | D2907-97 | R-1180-76 | U-04 | | |
| | | | | | | | | R-1181-76 | | | |
| | Alpha spectrometry | | | 00-07 | p 33 | 7500-U C (18th, 19th or 20th Ed | D 3972-97 | R-1182-76 | U-02 | | |
| | Laser Phosphorimetry | | | | | | D 5174-97 | | | | |
| Man-made: | | | | | | | | | | | |
| Radioactive cesium | Radiochemical | 901.0 | p 4 | | | 7500-Cs B | D 2459-72 | R-1111-76 | | | |
| | Gamma ray spectrometry | 901.1 | | | p 92 | 7120 | D 3649-91 | R-1110-76 | 4.5.2.3 | | |
| Radioactive iodine | Radiochemical | 902.0 | p 6 | | | 7500-I B | | | | | |
| | | | p 9 | | | 7500-I C | | | | | |
| | Gamma ray | | | | | 7500-I D | D 3649-91 | | | | |
| | spectrometry | 901.1 | | | p 92 | 7120 | D 4785-93 | | 4.5.2.3 | | |
| Radioactive | Radiochemical | 905.0 | p 29 | Sr-04 | p. 65 | 303, 7500-Sr B | | R-1160-76 | Sr-01 | | |
| Strontium 89, 90 | | | | | | | | | Sr-02 | | |
| Tritium | Liquid scintillation | 906.0 | p 34 | H-02 | p. 87 | 306, 7500-3H B | D 4107-91 | R-1171-76 | | | |
| Gamma emitters | Gamma ray | 901.1 | | | p 92 | 7120 | D 3649-91 | R-1110-76 | Ga-01-R | | |
| | Spectrometry | 902.0 | | | | 7500-Cs B | D 4785-93 | | | | |
| | | 901.0 | | | | 7500-I B | | | | | |
**40 CFR Part 141**
6. Section 141.74 is amended by revising the footnote 1 to the Table in paragraph (a)(1) and by revising the first three sentences of paragraph (a)(2) to read as follows:
§ 141.74
(a) * * *
(1) * * *
<sub>1</sub> Except where noted, all methods refer to Standard Methods for the Examination of Water and Wastewater, 18th edition (1992), 19th edition (1995), or 20th edition (1998), American Public Health Association, 1015 Fifteenth Street NW., Washington, DC 20005. The cited methods published in any of these three editions may be used.
(2) Public water systems must measure residual disinfectant concentrations with one of the analytical methods in the following table. Except for the method for ozone residuals, the disinfectant residual methods are contained in the 18th, 19th, and 20th editions of Standard Methods for the Examination of Water and Wastewater, 1992, 1995, and 1998; the cited methods published in any of these three editions may be used. The ozone method, 4500-O <sub>3</sub> B, is contained in both the 18th and 19th editions of Standard Methods for the Examination of Water and Wastewater, 1992, 1995; either edition may be used. * * *
**40 CFR Part 143**
**PART 143—NATIONAL SECONDARY DRINKING WATER REGULATIONS**
1. The authority citation for Part 143 continues to read as follows:
**Authority:**
42 U.S.C. 300f *et seq.*
**40 CFR Part 143**
2. Section 143.4 is amended by revising the Table in paragraph (b) to read as follows:
§ 143.4
(b) * * *
| Contaminant | EPA | ASTM | SM
18th and 19th ed. | SM
20th ed. | Other |
| --- | --- | --- | --- | --- | --- |
| 1. Aluminum | 200.7 | | 3120 B | 3120 B | |
| | 200.8 | | 3113 B | | |
| | 200.9 | | 3111 D | | |
| 2. Chloride | 300.0 | D4327-97 | 4110 B | 4110 B | |
| | | | 4500-Cl
D | 4500-Cl
D | |
| | | D512-89B | 4500-Cl
B | 4500-Cl
B | |
| 3. Color | | | 2120 B | 2120 B | |
| 4. Foaming Agents | | | 5540 C | 5540 C | |
| 5. Iron | 200.7 | | 3120 B | 3120 B | |
| | 200.9 | | 3111 B | | |
| | | | 3113 B | | |
| 6. Manganese | 200.7 | | 3120 B | 3120 B | |
| | 200.8 | | 3111 B | | |
| | 200.9 | | 3113 B | | |
| 7. Odor | | | 2150 B | 2150 B | |
| 8. Silver | 200.7 | | 3120 B | 3120 B | I-3720-85 |
| | 200.8 | | 3111 B | | |
| | 200.9 | | 3113 B | | |
| 9. Sulfate | 300.0 | D4327-97 | 4110 B | 4110 B | |
| | 375.2 | | 4500-SO
F | 4500-SO
F | |
| | | | 4500-SO
C, D | 4500-SO
C, D | |
| | | D516-90 | 4500-SO
E | 4500-SO
E | |
| 10. Total Dissolved Solids | | | 2540 C | 2540 C | |
| 11. Zinc | 200.7 | | 3120 B | 3120 B | |
| | 200.8 | | 3111 B | | |