Wyoming Administrative Code
Agency 020 - Environmental Quality, Dept. of
Sub-Agency 0009 - Solid Waste Management
Chapter 2 - MUNICIPAL SOLID WASTE LANDFILL REGULATIONS
Appendix A - Constituents for Detection Monitoring1

Universal Citation: WY Code of Rules A
Current through September 21, 2024

Common name2

CAS RN3

Chemical abstracts service index name4

Suggested methods5

PQL (µg/L)6

Inorganics (15)

Antimony

(Total)

Antimony

6010

7040

7041

300

2000

30

Arsenic

(Total)

Arsenic

6010

7060

7061

500

10

20

Barium

(Total)

Barium

6010

7080

20

1000

Beryllium

(Total)

Beryllium

6010

7090

7091

3

50

2

Cadmium

(Total)

Cadmium

6010

7130

7131

40

50

1

Chromium

(Total)

Chromium

6010

7190

7191

70

500

10

Cobalt

(Total)

Cobalt

6010

7200

7201

70

500

10

Copper

(Total)

Copper

6010

7210

7211

60

200

10

Lead

(Total)

Lead

6010

7420

7421

400

1000

10

Nickel

(Total)

Nickel

6010

7520

150

400

Selenium

(Total)

Selenium

6010

7740

7741

750

20

20

Silver

(Total)

Silver

6010

7760

70

100

Thallium

(Total)

Thallium

6010

7840

7841

400

1000

10

Vanadium

(Total)

Vanadium

6010

7910

7911

80

2000

40

Zinc

(Total)

Zinc

6010

7950

7951

20

50

0.5

Volatiles (47)

Acetone

67-64-1

2-Propanone

8260

100

Acrylonitrile

107-13-1

2-Propenenitrile

8030

8260

5

200

Benzene

71-43-2

Benzene

8020

8021

8260

2

0.1

5

Bromochloromethane; Chlorobromomethane

74-97-5

Methane, bromochloro-

8021

8260

0.1

5

Bromodichloromethane; Dibromochloromethane

75-27-4

Methane, bromodichloro-

8010

8021

8260

1

0.2

5

Bromoform; Tribromomethane

75-25-2

Methane, tribromo-

8010

8021

8260

2

15

5

Carbon disulfide

75-15-0

Carbon disulfide

8260

100

Carbon tetrachloride

56-23-5

Methane, tetrachloro-

8010

8021

8260

1

0.1

10

Chlorobenzene

108-90-7

Benzene, chloro-

8010

8020

8021

8260

2

2

0.1

5

Chloroethane; Ethyl chloride

75-00-3

Ethane, chloro-

8010

8021

8060

5 1 10

Chloroform; Trichloromethane

67-66-3

Methane, trichloro-

8010

8021

8260

0.5

0.2 5

Dibromochloromethane; Chlorodibromomethane

124-48-1

Methane, dibromochloro-

8010

8021

8260

1

0.3

5

1,2-Dibromo-3-chloropropane; DBCP

96-12-8

Propane, 1,2-dibromo-3-chloro-

8011

8021

8260

0.1

30

25

1,2-Dibromoethane; Ethylene dibromide; EDB

106-93-4

Ethane, 1,2-dibromo-

8011

8021

0.1

10

o-Dichlorobenzene

95-50-1

Benzene, 1,2-dichloro-

8010

8020

8021

8120

8260

8270

2

5

0.5

10

5

10

p-Dichlorobenzene; 1,4 Dichlorobenzene

106-46-7

Benzene, 1,4-dichloro-

8010

2

trans-1,4-Dichloro-2-butene

110-57-6

2-Butene, 1,4-dichloro-, (E)-

8260

100

1,1-Dichloroethane; Ethylidene chloride

75-34-3

Ethane, 1,1-dichloro-

8010

8021

8260

1

0.5

5

1,2-Dichloroethane; Ethylene dichloride

107-06-2

Ethane, 1,1-dichloro-

8010

8021

8260

0.5

0.3

5

1,1-Dichloroethylene; 1,1-Dichlorothene; Vinylidene chloride

75-35-4

Ethene, 1,1-dichloro-

8010

8021

8260

1

0.5

5

cis-1,2-Dichloroethylene;

cis-1,2-Dichloroethene

156-59-2

Ethene, 1,2-dichloro-, (Z)-

8021

8260

0.2 5

trans-1,2-Dichloroethylene

trans-1,2-Dichloroethene

156-60-5

Ethene, 1,2-dichloro-, (E)-

8010

8021

8260

1

0.5

5

1,2-Dichloropropane;

Propylene dichloride

78-87-5

Propane, 1,2-dichloro-

8010

8021

8260

0.5

0.05

5

cis-1,3-Dichloropropene

10061-01-5

1-Propene, 1,3-dichloro-, (Z)-

8010

8260

20

10

trans-1,3-Dichloropropene

10061-02-6

1-Propene, 1,3-dichloro-, (E)-

8010

8260

5

5

Ethylbenzene

100-41-4

Benzene, ethyl-

8020

8221

8260

2

0.05

5

2-Hexanone;

Methyl butyl ketone

591-78-6

2-Hexanone

8260

50

Methyl bromide; Bromomethane

74-83-9

Methane, bromo-

8010

8021

20

10

Methyl chloride; Chloromethane

74-87-3

Methane, chloro-

8010

8021

1

0.3

Methylene bromide; Dibromomethane

74-95-3

Methane, dibromo-

8010

8021

8260

15

20

10

Methylene chloride; Dichloromethane

75-09-2

Methane, dichloro-

8010

8021

8260

5

0.2

10

Methyl ethyl ketone; MEK; 2-Butanone

78-93-3

2-Butanone

8015

8260

10

100

Methyl iodide; Iodomethane

74-88-4

Methane, iodo-

8010

8260

40

10

4-Methyl-2-pentanone; Methyl isobutyl ketone

108-10-1

2-Pentanone, 4-methyl-

8015

8260

5

100

Styrene

100-42-5

Benzene, ethenyl-

8020

8021

8260

1

0.1

10

1,1,1,2-Tetrachloroethane

630-20-6

Ethane, 1,1,1,2-tetrachloro-

8010

8021

8260

5

0.05

5

1,1,2,2-Tetrachloroethane

79-34-5

Ethane, 1,1,2,2-tetrachloro-

8010

8021

8260

0.5

0.1

5

Tetrachloroethylene;

Tetrachloroethene;

Perchloroethylene

127-18-4

Ethene, tetrachloro-

8010

8021

8260

0.5

0.5

5

Toluene

108-88-3

Benzene, methyl-

8020

8021

8260

2

0.1

5

1,1,1-Trichloroethane; Methylchloroform

71-55-6

Ethane, 1,1,1-trichloro-

8010

8021

8260

0.3

0.3

5

1,1,2-Trichloroethane

79-00-5

Ethane, 1,1,2-trichloro-

8010

8260

0.2 5

Trichloroethylene; Trichloroethene

79-01-6

Ethene, trichloro-

8010

8021

8260

1

0.2

5

Trichlorofluoromethane; CFC-11

75-69-4

Methane, trichlorofluoro-

8010

8021

8260

10

0.3

5

1,2,3-Trichloropropane

96-18-4

Propane, 1,2,3-trichloro-

8010

8021

8260

10

5

15

Vinyl acetate

108-05-4

Acetic acid, ethenyl ester

8260

50

Vinyl chloride; Chloroethene

75-01-4

Ethene, chloro-

8010

8021

8260

2

0.4

10

Xylene (total)

See Note 11

Benzene, dimethyl-

8020

8021

8260

5

0.2

5

1The regulatory requirements pertain only to the list of substances; the right hand columns (Methods and PQL) are given for informational purposes only. See also footnotes 5 and 6.

2Common names are those widely used in government regulations, scientific publications, and commerce; synonyms exist for many chemicals.

3Chemical Abstracts Service registry number. Where "Total" is entered, all species in the groundwater that contain this element are included.

4CAS index names are those used in the 9th Collective Index.

5Suggested Methods refer to analytical procedure numbers used in EPA Report SW-846 "Test Methods for Evaluating Solid Waste", third edition, November 1986, as revised, December 1987. Analytical details can be found in SW-846 and in documentation on file at the department. CAUTION: The methods listed are representative SW-846 procedures and may not always be the most suitable method(s) for monitoring an analyte under the regulations.

6Practical Quantitation Limits (PQLs) are the lowest concentrations of analytes in groundwaters that can be reliably determined within specified limits of precision and accuracy by the indicated methods under routine laboratory operating conditions. The PQLs listed are generally stated to one significant figure. PQLs are based on 5 mL samples for volatile organics and 1 L samples for semivolatile organics. CAUTION: The PQL values in many cases are based only on a general estimate for the method and not on a determination for individual compounds; PQLs are not a part of the regulation.

Disclaimer: These regulations may not be the most recent version. Wyoming may have more current or accurate information. We make no warranties or guarantees about the accuracy, completeness, or adequacy of the information contained on this site or the information linked to on the state site. Please check official sources.
This site is protected by reCAPTCHA and the Google Privacy Policy and Terms of Service apply.