EPA Section 304(a) recommended human health ambient water quality criteria for ~120 pollutants. For each pollutant: the CAS number, the 'water + organism' threshold in µg/L (for waters that are both a drinking-water source and support aquatic life), and the 'organism only' threshold (for waters not used as drinking-water sources). These are recommendations for states adopting water quality standards, NOT enforceable MCLs (which are in drinking-water-contaminant-limits). Used by environmental consultants writing NPDES permits, state agencies setting water quality standards, and industrial dischargers determining compliance. Note: this is a mirror of one EPA table. The stronger juxtaposition version comparing EPA recommended values with state-adopted criteria would not be a mirror, because states adopt different numbers for the same pollutant.

EPA national recommended water quality criteria for human health: pollutant concentration thresholds


**Pollutant name:** 1,1,1-Trichloroethane (P)

**CAS Registry Number:** 71556

**Water + Organism criterion (µg/L):** 10,000

**Organism Only criterion (µg/L):** 200,000

> 1,1,1-Trichloroethane (P) | 71556 | 10,000 | 200,000 | 2015

Source: <https://www.epa.gov/wqc/national-recommended-water-quality-criteria-human-health-criteria-table>

1,1,1-Trichloroethane (P) — EPA national recommended water quality criteria for human health: pollutant concentration thresholds


**Pollutant name:** 1,1,2,2-Tetrachloroethane (P)

**CAS Registry Number:** 79345

**Water + Organism criterion (µg/L):** 0.2

**Organism Only criterion (µg/L):** 3

> 1,1,2,2-Tetrachloroethane (P) | 79345 | 0.2 | 3 | 2015

Source: <https://www.epa.gov/wqc/national-recommended-water-quality-criteria-human-health-criteria-table>

1,1,2,2-Tetrachloroethane (P) — EPA national recommended water quality criteria for human health: pollutant concentration thresholds


**Pollutant name:** 1,1,2-Trichloroethane (P)

**CAS Registry Number:** 79005

**Water + Organism criterion (µg/L):** 0.55

**Organism Only criterion (µg/L):** 8.9

> 1,1,2-Trichloroethane (P) | 79005 | 0.55 | 8.9 | 2015

Source: <https://www.epa.gov/wqc/national-recommended-water-quality-criteria-human-health-criteria-table>

1,1,2-Trichloroethane (P) — EPA national recommended water quality criteria for human health: pollutant concentration thresholds


**Pollutant name:** 1,1-Dichloroethylene (P)

**CAS Registry Number:** 75354

**Water + Organism criterion (µg/L):** 300

**Organism Only criterion (µg/L):** 20,000

> 1,1-Dichloroethylene (P) | 75354 | 300 | 20,000 | 2015

Source: <https://www.epa.gov/wqc/national-recommended-water-quality-criteria-human-health-criteria-table>

1,1-Dichloroethylene (P) — EPA national recommended water quality criteria for human health: pollutant concentration thresholds


**Pollutant name:** 1,2,4,5-Tetrachlorobenzene

**CAS Registry Number:** 95943

**Water + Organism criterion (µg/L):** 0.03

**Organism Only criterion (µg/L):** 0.03

> 1,2,4,5-Tetrachlorobenzene | 95943 | 0.03 | 0.03 | 2015

Source: <https://www.epa.gov/wqc/national-recommended-water-quality-criteria-human-health-criteria-table>

1,2,4,5-Tetrachlorobenzene — EPA national recommended water quality criteria for human health: pollutant concentration thresholds


**Pollutant name:** 1,2,4-Trichlorobenzene (P)

**CAS Registry Number:** 120821

**Water + Organism criterion (µg/L):** 0.071

**Organism Only criterion (µg/L):** 0.076

> 1,2,4-Trichlorobenzene (P) | 120821 | 0.071 | 0.076 | 2015

Source: <https://www.epa.gov/wqc/national-recommended-water-quality-criteria-human-health-criteria-table>

1,2,4-Trichlorobenzene (P) — EPA national recommended water quality criteria for human health: pollutant concentration thresholds


**Pollutant name:** 1,2-Dichlorobenzene (P)

**CAS Registry Number:** 95501

**Water + Organism criterion (µg/L):** 1,000

**Organism Only criterion (µg/L):** 3,000

> 1,2-Dichlorobenzene (P) | 95501 | 1,000 | 3,000 | 2015

Source: <https://www.epa.gov/wqc/national-recommended-water-quality-criteria-human-health-criteria-table>

1,2-Dichlorobenzene (P) — EPA national recommended water quality criteria for human health: pollutant concentration thresholds


**Pollutant name:** 1,2-Dichloroethane (P)

**CAS Registry Number:** 107062

**Water + Organism criterion (µg/L):** 9.9

**Organism Only criterion (µg/L):** 650

> 1,2-Dichloroethane (P) | 107062 | 9.9 | 650 | 2015

Source: <https://www.epa.gov/wqc/national-recommended-water-quality-criteria-human-health-criteria-table>

1,2-Dichloroethane (P) — EPA national recommended water quality criteria for human health: pollutant concentration thresholds


**Pollutant name:** 1,2-Dichloropropane (P)

**CAS Registry Number:** 78875

**Water + Organism criterion (µg/L):** 0.90

**Organism Only criterion (µg/L):** 31

> 1,2-Dichloropropane (P) | 78875 | 0.90 | 31 | 2015

Source: <https://www.epa.gov/wqc/national-recommended-water-quality-criteria-human-health-criteria-table>

1,2-Dichloropropane (P) — EPA national recommended water quality criteria for human health: pollutant concentration thresholds


**Pollutant name:** 1,2-Diphenylhydrazine (P)

**CAS Registry Number:** 122667

**Water + Organism criterion (µg/L):** 0.03

**Organism Only criterion (µg/L):** 0.2

> 1,2-Diphenylhydrazine (P) | 122667 | 0.03 | 0.2 | 2015

Source: <https://www.epa.gov/wqc/national-recommended-water-quality-criteria-human-health-criteria-table>

1,2-Diphenylhydrazine (P) — EPA national recommended water quality criteria for human health: pollutant concentration thresholds


**Pollutant name:** 1,3-Dichlorobenzene (P)

**CAS Registry Number:** 541731

**Water + Organism criterion (µg/L):** 7

**Organism Only criterion (µg/L):** 10

> 1,3-Dichlorobenzene (P) | 541731 | 7 | 10 | 2015

Source: <https://www.epa.gov/wqc/national-recommended-water-quality-criteria-human-health-criteria-table>

1,3-Dichlorobenzene (P) — EPA national recommended water quality criteria for human health: pollutant concentration thresholds


**Pollutant name:** 1,3-Dichloropropene (P)

**CAS Registry Number:** 542756

**Water + Organism criterion (µg/L):** 0.27

**Organism Only criterion (µg/L):** 12

> 1,3-Dichloropropene (P) | 542756 | 0.27 | 12 | 2015

Source: <https://www.epa.gov/wqc/national-recommended-water-quality-criteria-human-health-criteria-table>

1,3-Dichloropropene (P) — EPA national recommended water quality criteria for human health: pollutant concentration thresholds


**Pollutant name:** 1,4-Dichlorobenzene (P)

**CAS Registry Number:** 106467

**Water + Organism criterion (µg/L):** 300

**Organism Only criterion (µg/L):** 900

> 1,4-Dichlorobenzene (P) | 106467 | 300 | 900 | 2015

Source: <https://www.epa.gov/wqc/national-recommended-water-quality-criteria-human-health-criteria-table>

1,4-Dichlorobenzene (P) — EPA national recommended water quality criteria for human health: pollutant concentration thresholds


**Pollutant name:** 2,3,7,8-TCDD (Dioxin) (P)

**CAS Registry Number:** 1746016

**Water + Organism criterion (µg/L):** 5.0E-9

**Organism Only criterion (µg/L):** 5.1E-9

> 2,3,7,8-TCDD (Dioxin) (P) | 1746016 | 5.0E-9 | 5.1E-9 | 2002

Source: <https://www.epa.gov/wqc/national-recommended-water-quality-criteria-human-health-criteria-table>

2,3,7,8-TCDD (Dioxin) (P) — EPA national recommended water quality criteria for human health: pollutant concentration thresholds


**Pollutant name:** 2,4,5-Trichlorophenol

**CAS Registry Number:** 95954

**Water + Organism criterion (µg/L):** 300

**Organism Only criterion (µg/L):** 600

> 2,4,5-Trichlorophenol | 95954 | 300 | 600 | 2015

Source: <https://www.epa.gov/wqc/national-recommended-water-quality-criteria-human-health-criteria-table>

2,4,5-Trichlorophenol — EPA national recommended water quality criteria for human health: pollutant concentration thresholds


**Pollutant name:** 2,4,6-Trichlorophenol (P)

**CAS Registry Number:** 88062

**Water + Organism criterion (µg/L):** 1.5

**Organism Only criterion (µg/L):** 2.8

> 2,4,6-Trichlorophenol (P) | 88062 | 1.5 | 2.8 | 2015

Source: <https://www.epa.gov/wqc/national-recommended-water-quality-criteria-human-health-criteria-table>

2,4,6-Trichlorophenol (P) — EPA national recommended water quality criteria for human health: pollutant concentration thresholds


**Pollutant name:** 2,4-Dichlorophenol (P)

**CAS Registry Number:** 120832

**Water + Organism criterion (µg/L):** 10

**Organism Only criterion (µg/L):** 60

> 2,4-Dichlorophenol (P) | 120832 | 10 | 60 | 2015

Source: <https://www.epa.gov/wqc/national-recommended-water-quality-criteria-human-health-criteria-table>

2,4-Dichlorophenol (P) — EPA national recommended water quality criteria for human health: pollutant concentration thresholds


**Pollutant name:** 2,4-Dimethylphenol (P)

**CAS Registry Number:** 105679

**Water + Organism criterion (µg/L):** 100

**Organism Only criterion (µg/L):** 3,000

> 2,4-Dimethylphenol (P) | 105679 | 100 | 3,000 | 2015

Source: <https://www.epa.gov/wqc/national-recommended-water-quality-criteria-human-health-criteria-table>

2,4-Dimethylphenol (P) — EPA national recommended water quality criteria for human health: pollutant concentration thresholds


**Pollutant name:** 2,4-Dinitrophenol (P)

**CAS Registry Number:** 51285

**Water + Organism criterion (µg/L):** 10

**Organism Only criterion (µg/L):** 300

> 2,4-Dinitrophenol (P) | 51285 | 10 | 300 | 2015

Source: <https://www.epa.gov/wqc/national-recommended-water-quality-criteria-human-health-criteria-table>

2,4-Dinitrophenol (P) — EPA national recommended water quality criteria for human health: pollutant concentration thresholds


**Pollutant name:** 2,4-Dinitrotoluene (P)

**CAS Registry Number:** 121142

**Water + Organism criterion (µg/L):** 0.049

**Organism Only criterion (µg/L):** 1.7

> 2,4-Dinitrotoluene (P) | 121142 | 0.049 | 1.7 | 2015

Source: <https://www.epa.gov/wqc/national-recommended-water-quality-criteria-human-health-criteria-table>

2,4-Dinitrotoluene (P) — EPA national recommended water quality criteria for human health: pollutant concentration thresholds


**Pollutant name:** 2-Chloronaphthalene (P)

**CAS Registry Number:** 91587

**Water + Organism criterion (µg/L):** 800

**Organism Only criterion (µg/L):** 1,000

> 2-Chloronaphthalene (P) | 91587 | 800 | 1,000 | 2015

Source: <https://www.epa.gov/wqc/national-recommended-water-quality-criteria-human-health-criteria-table>

2-Chloronaphthalene (P) — EPA national recommended water quality criteria for human health: pollutant concentration thresholds


**Pollutant name:** 2-Chlorophenol (P)

**CAS Registry Number:** 95578

**Water + Organism criterion (µg/L):** 30

**Organism Only criterion (µg/L):** 800

> 2-Chlorophenol (P) | 95578 | 30 | 800 | 2015

Source: <https://www.epa.gov/wqc/national-recommended-water-quality-criteria-human-health-criteria-table>

2-Chlorophenol (P) — EPA national recommended water quality criteria for human health: pollutant concentration thresholds


**Pollutant name:** 2-Methyl-4,6-Dinitrophenol (P)

**CAS Registry Number:** 534521

**Water + Organism criterion (µg/L):** 2

**Organism Only criterion (µg/L):** 30

> 2-Methyl-4,6-Dinitrophenol (P) | 534521 | 2 | 30 | 2015

Source: <https://www.epa.gov/wqc/national-recommended-water-quality-criteria-human-health-criteria-table>

2-Methyl-4,6-Dinitrophenol (P) — EPA national recommended water quality criteria for human health: pollutant concentration thresholds


**Pollutant name:** 3,3'-Dichlorobenzidine (P)

**CAS Registry Number:** 91941

**Water + Organism criterion (µg/L):** 0.049

**Organism Only criterion (µg/L):** 0.15

> 3,3'-Dichlorobenzidine (P) | 91941 | 0.049 | 0.15 | 2015

Source: <https://www.epa.gov/wqc/national-recommended-water-quality-criteria-human-health-criteria-table>

3,3'-Dichlorobenzidine (P) — EPA national recommended water quality criteria for human health: pollutant concentration thresholds


**Pollutant name:** 3-Methyl-4-Chlorophenol (P)

**CAS Registry Number:** 59507

**Water + Organism criterion (µg/L):** 500

**Organism Only criterion (µg/L):** 2,000

> 3-Methyl-4-Chlorophenol (P) | 59507 | 500 | 2,000 | 2015

Source: <https://www.epa.gov/wqc/national-recommended-water-quality-criteria-human-health-criteria-table>

3-Methyl-4-Chlorophenol (P) — EPA national recommended water quality criteria for human health: pollutant concentration thresholds


**Pollutant name:** Acenaphthene (P)

**CAS Registry Number:** 83329

**Water + Organism criterion (µg/L):** 70

**Organism Only criterion (µg/L):** 90

> Acenaphthene (P) | 83329 | 70 | 90 | 2015

Source: <https://www.epa.gov/wqc/national-recommended-water-quality-criteria-human-health-criteria-table>

Acenaphthene (P) — EPA national recommended water quality criteria for human health: pollutant concentration thresholds


**Pollutant name:** Acrolein (P)

**CAS Registry Number:** 107028

**Water + Organism criterion (µg/L):** 3

**Organism Only criterion (µg/L):** 400

> Acrolein (P) | 107028 | 3 | 400 | 2015

Source: <https://www.epa.gov/wqc/national-recommended-water-quality-criteria-human-health-criteria-table>

Acrolein (P) — EPA national recommended water quality criteria for human health: pollutant concentration thresholds


**Pollutant name:** Acrylonitrile (P)

**CAS Registry Number:** 107131

**Water + Organism criterion (µg/L):** 0.061

**Organism Only criterion (µg/L):** 7.0

> Acrylonitrile (P) | 107131 | 0.061 | 7.0 | 2015

Source: <https://www.epa.gov/wqc/national-recommended-water-quality-criteria-human-health-criteria-table>

Acrylonitrile (P) — EPA national recommended water quality criteria for human health: pollutant concentration thresholds


**Pollutant name:** Aldrin (P)

**CAS Registry Number:** 309002

**Water + Organism criterion (µg/L):** 0.00000077

**Organism Only criterion (µg/L):** 0.00000077

> Aldrin (P) | 309002 | 0.00000077 | 0.00000077 | 2015

Source: <https://www.epa.gov/wqc/national-recommended-water-quality-criteria-human-health-criteria-table>

Aldrin (P) — EPA national recommended water quality criteria for human health: pollutant concentration thresholds


**Pollutant name:** alpha-Endosulfan (P)

**CAS Registry Number:** 959988

**Water + Organism criterion (µg/L):** 20

**Organism Only criterion (µg/L):** 30

> alpha-Endosulfan (P) | 959988 | 20 | 30 | 2015

Source: <https://www.epa.gov/wqc/national-recommended-water-quality-criteria-human-health-criteria-table>

alpha-Endosulfan (P) — EPA national recommended water quality criteria for human health: pollutant concentration thresholds


**Pollutant name:** alpha-Hexachlorocyclohexane (HCH) (P)

**CAS Registry Number:** 319846

**Water + Organism criterion (µg/L):** 0.00036

**Organism Only criterion (µg/L):** 0.00039

> alpha-Hexachlorocyclohexane (HCH) (P) | 319846 | 0.00036 | 0.00039 | 2015

Source: <https://www.epa.gov/wqc/national-recommended-water-quality-criteria-human-health-criteria-table>

alpha-Hexachlorocyclohexane (HCH) (P) — EPA national recommended water quality criteria for human health: pollutant concentration thresholds


**Pollutant name:** Anthracene (P)

**CAS Registry Number:** 120127

**Water + Organism criterion (µg/L):** 300

**Organism Only criterion (µg/L):** 400

> Anthracene (P) | 120127 | 300 | 400 | 2015

Source: <https://www.epa.gov/wqc/national-recommended-water-quality-criteria-human-health-criteria-table>

Anthracene (P) — EPA national recommended water quality criteria for human health: pollutant concentration thresholds


**Pollutant name:** Antimony (P)

**CAS Registry Number:** 7440360

**Water + Organism criterion (µg/L):** 5.6

**Organism Only criterion (µg/L):** 640

> Antimony (P) | 7440360 | 5.6 | 640 | 1980

Source: <https://www.epa.gov/wqc/national-recommended-water-quality-criteria-human-health-criteria-table>

Antimony (P) — EPA national recommended water quality criteria for human health: pollutant concentration thresholds


**Pollutant name:** Arsenic (P)

**CAS Registry Number:** 7440382

**Water + Organism criterion (µg/L):** 0.018

**Organism Only criterion (µg/L):** 0.14

> Arsenic (P) | 7440382 | 0.018 | 0.14 | 1992

Source: <https://www.epa.gov/wqc/national-recommended-water-quality-criteria-human-health-criteria-table>

Arsenic (P) — EPA national recommended water quality criteria for human health: pollutant concentration thresholds


**Pollutant name:** Asbestos (P)

**CAS Registry Number:** 1332214

**Water + Organism criterion (µg/L):** 7 million fibers/L

**Organism Only criterion (µg/L):** —

> Asbestos (P) | 1332214 | 7 million fibers/L | — | 1991

Source: <https://www.epa.gov/wqc/national-recommended-water-quality-criteria-human-health-criteria-table>

Asbestos (P) — EPA national recommended water quality criteria for human health: pollutant concentration thresholds


**Pollutant name:** Barium

**CAS Registry Number:** 7440393

**Water + Organism criterion (µg/L):** 1,000

**Organism Only criterion (µg/L):** —

> Barium | 7440393 | 1,000 | — | 1986

Source: <https://www.epa.gov/wqc/national-recommended-water-quality-criteria-human-health-criteria-table>

Barium — EPA national recommended water quality criteria for human health: pollutant concentration thresholds


**Pollutant name:** Benzene (P)

**CAS Registry Number:** 71432

**Water + Organism criterion (µg/L):** 0.58-2.1

**Organism Only criterion (µg/L):** 16-58

> Benzene (P) | 71432 | 0.58-2.1 | 16-58 | 2015

Source: <https://www.epa.gov/wqc/national-recommended-water-quality-criteria-human-health-criteria-table>

Benzene (P) — EPA national recommended water quality criteria for human health: pollutant concentration thresholds


**Pollutant name:** Benzidine (P)

**CAS Registry Number:** 92875

**Water + Organism criterion (µg/L):** 0.00014

**Organism Only criterion (µg/L):** 0.011

> Benzidine (P) | 92875 | 0.00014 | 0.011 | 2015

Source: <https://www.epa.gov/wqc/national-recommended-water-quality-criteria-human-health-criteria-table>

Benzidine (P) — EPA national recommended water quality criteria for human health: pollutant concentration thresholds


**Pollutant name:** Benzo(a)anthracene (P)

**CAS Registry Number:** 56553

**Water + Organism criterion (µg/L):** 0.0012

**Organism Only criterion (µg/L):** 0.0013

> Benzo(a)anthracene (P) | 56553 | 0.0012 | 0.0013 | 2015

Source: <https://www.epa.gov/wqc/national-recommended-water-quality-criteria-human-health-criteria-table>

Benzo(a)anthracene (P) — EPA national recommended water quality criteria for human health: pollutant concentration thresholds


**Pollutant name:** Benzo(a)pyrene (P)

**CAS Registry Number:** 50328

**Water + Organism criterion (µg/L):** 0.00012

**Organism Only criterion (µg/L):** 0.00013

> Benzo(a)pyrene (P) | 50328 | 0.00012 | 0.00013 | 2015

Source: <https://www.epa.gov/wqc/national-recommended-water-quality-criteria-human-health-criteria-table>

Benzo(a)pyrene (P) — EPA national recommended water quality criteria for human health: pollutant concentration thresholds


**Pollutant name:** Benzo(b)fluoranthene (P)

**CAS Registry Number:** 205992

**Water + Organism criterion (µg/L):** 0.0012

**Organism Only criterion (µg/L):** 0.0013

> Benzo(b)fluoranthene (P) | 205992 | 0.0012 | 0.0013 | 2015

Source: <https://www.epa.gov/wqc/national-recommended-water-quality-criteria-human-health-criteria-table>

Benzo(b)fluoranthene (P) — EPA national recommended water quality criteria for human health: pollutant concentration thresholds


**Pollutant name:** Benzo(k)fluoranthene (P)

**CAS Registry Number:** 207089

**Water + Organism criterion (µg/L):** 0.012

**Organism Only criterion (µg/L):** 0.013

> Benzo(k)fluoranthene (P) | 207089 | 0.012 | 0.013 | 2015

Source: <https://www.epa.gov/wqc/national-recommended-water-quality-criteria-human-health-criteria-table>

Benzo(k)fluoranthene (P) — EPA national recommended water quality criteria for human health: pollutant concentration thresholds


**Pollutant name:** Beryllium (P)

**CAS Registry Number:** 7440417

**Water + Organism criterion (µg/L):** —

**Organism Only criterion (µg/L):** —

> Beryllium (P) | 7440417 | — | — | —

Source: <https://www.epa.gov/wqc/national-recommended-water-quality-criteria-human-health-criteria-table>

Beryllium (P) — EPA national recommended water quality criteria for human health: pollutant concentration thresholds


**Pollutant name:** beta-Endosulfan (P)

**CAS Registry Number:** 33213659

**Water + Organism criterion (µg/L):** 20

**Organism Only criterion (µg/L):** 40

> beta-Endosulfan (P) | 33213659 | 20 | 40 | 2015

Source: <https://www.epa.gov/wqc/national-recommended-water-quality-criteria-human-health-criteria-table>

beta-Endosulfan (P) — EPA national recommended water quality criteria for human health: pollutant concentration thresholds


**Pollutant name:** beta-Hexachlorocyclohexane (HCH) (P)

**CAS Registry Number:** 319857

**Water + Organism criterion (µg/L):** 0.0080

**Organism Only criterion (µg/L):** 0.014

> beta-Hexachlorocyclohexane (HCH) (P) | 319857 | 0.0080 | 0.014 | 2015

Source: <https://www.epa.gov/wqc/national-recommended-water-quality-criteria-human-health-criteria-table>

beta-Hexachlorocyclohexane (HCH) (P) — EPA national recommended water quality criteria for human health: pollutant concentration thresholds


**Pollutant name:** Bis(2-Chloro-1-methylethyl) Ether (P)

**CAS Registry Number:** 108601

**Water + Organism criterion (µg/L):** 200

**Organism Only criterion (µg/L):** 4,000

> Bis(2-Chloro-1-methylethyl) Ether (P) | 108601 | 200 | 4,000 | 2015

Source: <https://www.epa.gov/wqc/national-recommended-water-quality-criteria-human-health-criteria-table>

Bis(2-Chloro-1-methylethyl) Ether (P) — EPA national recommended water quality criteria for human health: pollutant concentration thresholds


**Pollutant name:** Bis(2-Chloroethyl) Ether (P)

**CAS Registry Number:** 111444

**Water + Organism criterion (µg/L):** 0.030

**Organism Only criterion (µg/L):** 2.2

> Bis(2-Chloroethyl) Ether (P) | 111444 | 0.030 | 2.2 | 2015

Source: <https://www.epa.gov/wqc/national-recommended-water-quality-criteria-human-health-criteria-table>

Bis(2-Chloroethyl) Ether (P) — EPA national recommended water quality criteria for human health: pollutant concentration thresholds


**Pollutant name:** Bis(2-Ethylhexyl) Phthalate (P)

**CAS Registry Number:** 117817

**Water + Organism criterion (µg/L):** 0.32

**Organism Only criterion (µg/L):** 0.37

> Bis(2-Ethylhexyl) Phthalate (P) | 117817 | 0.32 | 0.37 | 2015

Source: <https://www.epa.gov/wqc/national-recommended-water-quality-criteria-human-health-criteria-table>

Bis(2-Ethylhexyl) Phthalate (P) — EPA national recommended water quality criteria for human health: pollutant concentration thresholds


**Pollutant name:** Bis(Chloromethyl) Ether

**CAS Registry Number:** 542881

**Water + Organism criterion (µg/L):** 0.00015

**Organism Only criterion (µg/L):** 0.017

> Bis(Chloromethyl) Ether | 542881 | 0.00015 | 0.017 | 2015

Source: <https://www.epa.gov/wqc/national-recommended-water-quality-criteria-human-health-criteria-table>

Bis(Chloromethyl) Ether — EPA national recommended water quality criteria for human health: pollutant concentration thresholds


**Pollutant name:** Bromoform (P)

**CAS Registry Number:** 75252

**Water + Organism criterion (µg/L):** 7.0

**Organism Only criterion (µg/L):** 120

> Bromoform (P) | 75252 | 7.0 | 120 | 2015

Source: <https://www.epa.gov/wqc/national-recommended-water-quality-criteria-human-health-criteria-table>

Bromoform (P) — EPA national recommended water quality criteria for human health: pollutant concentration thresholds


**Pollutant name:** Butylbenzyl Phthalate (P)

**CAS Registry Number:** 85687

**Water + Organism criterion (µg/L):** 0.10

**Organism Only criterion (µg/L):** 0.10

> Butylbenzyl Phthalate (P) | 85687 | 0.10 | 0.10 | 2015

Source: <https://www.epa.gov/wqc/national-recommended-water-quality-criteria-human-health-criteria-table>

Butylbenzyl Phthalate (P) — EPA national recommended water quality criteria for human health: pollutant concentration thresholds


**Pollutant name:** Cadmium (P)

**CAS Registry Number:** 7440439

**Water + Organism criterion (µg/L):** —

**Organism Only criterion (µg/L):** —

> Cadmium (P) | 7440439 | — | — | —

Source: <https://www.epa.gov/wqc/national-recommended-water-quality-criteria-human-health-criteria-table>

Cadmium (P) — EPA national recommended water quality criteria for human health: pollutant concentration thresholds


**Pollutant name:** Carbon Tetrachloride (P)

**CAS Registry Number:** 56235

**Water + Organism criterion (µg/L):** 0.4

**Organism Only criterion (µg/L):** 5

> Carbon Tetrachloride (P) | 56235 | 0.4 | 5 | 2015

Source: <https://www.epa.gov/wqc/national-recommended-water-quality-criteria-human-health-criteria-table>

Carbon Tetrachloride (P) — EPA national recommended water quality criteria for human health: pollutant concentration thresholds


**Pollutant name:** Chlordane (P)

**CAS Registry Number:** 57749

**Water + Organism criterion (µg/L):** 0.00031

**Organism Only criterion (µg/L):** 0.00032

> Chlordane (P) | 57749 | 0.00031 | 0.00032 | 2015

Source: <https://www.epa.gov/wqc/national-recommended-water-quality-criteria-human-health-criteria-table>

Chlordane (P) — EPA national recommended water quality criteria for human health: pollutant concentration thresholds


**Pollutant name:** Chlorobenzene (P)

**CAS Registry Number:** 108907

**Water + Organism criterion (µg/L):** 100

**Organism Only criterion (µg/L):** 800

> Chlorobenzene (P) | 108907 | 100 | 800 | 2015

Source: <https://www.epa.gov/wqc/national-recommended-water-quality-criteria-human-health-criteria-table>

Chlorobenzene (P) — EPA national recommended water quality criteria for human health: pollutant concentration thresholds


**Pollutant name:** Chlorodibromomethane (P)

**CAS Registry Number:** 124481

**Water + Organism criterion (µg/L):** 0.80

**Organism Only criterion (µg/L):** 21

> Chlorodibromomethane (P) | 124481 | 0.80 | 21 | 2015

Source: <https://www.epa.gov/wqc/national-recommended-water-quality-criteria-human-health-criteria-table>

Chlorodibromomethane (P) — EPA national recommended water quality criteria for human health: pollutant concentration thresholds


**Pollutant name:** Chloroform (P)

**CAS Registry Number:** 67663

**Water + Organism criterion (µg/L):** 60

**Organism Only criterion (µg/L):** 2,000

> Chloroform (P) | 67663 | 60 | 2,000 | 2015

Source: <https://www.epa.gov/wqc/national-recommended-water-quality-criteria-human-health-criteria-table>

Chloroform (P) — EPA national recommended water quality criteria for human health: pollutant concentration thresholds


**Pollutant name:** Chlorophenoxy Herbicide (2,4,5-TP) [Silvex]

**CAS Registry Number:** 93721

**Water + Organism criterion (µg/L):** 100

**Organism Only criterion (µg/L):** 400

> Chlorophenoxy Herbicide (2,4,5-TP) [Silvex] | 93721 | 100 | 400 | 2015

Source: <https://www.epa.gov/wqc/national-recommended-water-quality-criteria-human-health-criteria-table>

Chlorophenoxy Herbicide (2,4,5-TP) [Silvex] — EPA national recommended water quality criteria for human health: pollutant concentration thresholds


**Pollutant name:** Chlorophenoxy Herbicide (2,4-D)

**CAS Registry Number:** 94757

**Water + Organism criterion (µg/L):** 1,300

**Organism Only criterion (µg/L):** 12,000

> Chlorophenoxy Herbicide (2,4-D) | 94757 | 1,300 | 12,000 | 2015

Source: <https://www.epa.gov/wqc/national-recommended-water-quality-criteria-human-health-criteria-table>

Chlorophenoxy Herbicide (2,4-D) — EPA national recommended water quality criteria for human health: pollutant concentration thresholds


**Pollutant name:** Chromium (III) (P)

**CAS Registry Number:** 16065831

**Water + Organism criterion (µg/L):** Total

**Organism Only criterion (µg/L):** —

> Chromium (III) (P) | 16065831 | Total | — | —

Source: <https://www.epa.gov/wqc/national-recommended-water-quality-criteria-human-health-criteria-table>

Chromium (III) (P) — EPA national recommended water quality criteria for human health: pollutant concentration thresholds


**Pollutant name:** Chromium (VI) (P)

**CAS Registry Number:** 18540299

**Water + Organism criterion (µg/L):** Total

**Organism Only criterion (µg/L):** —

> Chromium (VI) (P) | 18540299 | Total | — | —

Source: <https://www.epa.gov/wqc/national-recommended-water-quality-criteria-human-health-criteria-table>

Chromium (VI) (P) — EPA national recommended water quality criteria for human health: pollutant concentration thresholds


**Pollutant name:** Chrysene (P)

**CAS Registry Number:** 218019

**Water + Organism criterion (µg/L):** 0.12

**Organism Only criterion (µg/L):** 0.13

> Chrysene (P) | 218019 | 0.12 | 0.13 | 2015

Source: <https://www.epa.gov/wqc/national-recommended-water-quality-criteria-human-health-criteria-table>

Chrysene (P) — EPA national recommended water quality criteria for human health: pollutant concentration thresholds


**Pollutant name:** Copper (P)

**CAS Registry Number:** 7440508

**Water + Organism criterion (µg/L):** 1,300

**Organism Only criterion (µg/L):** —

> Copper (P) | 7440508 | 1,300 | — | 1992

Source: <https://www.epa.gov/wqc/national-recommended-water-quality-criteria-human-health-criteria-table>

Copper (P) — EPA national recommended water quality criteria for human health: pollutant concentration thresholds


**Pollutant name:** Cyanide (P)

**CAS Registry Number:** 57125

**Water + Organism criterion (µg/L):** 4

**Organism Only criterion (µg/L):** 400

> Cyanide (P) | 57125 | 4 | 400 | 2015

Source: <https://www.epa.gov/wqc/national-recommended-water-quality-criteria-human-health-criteria-table>

Cyanide (P) — EPA national recommended water quality criteria for human health: pollutant concentration thresholds


**Pollutant name:** Cylindrospermopsin

**CAS Registry Number:** 143545-90-8

**Water + Organism criterion (µg/L):** —

**Organism Only criterion (µg/L):** —

> Cylindrospermopsin | 143545-90-8 | — | — | 2019

Source: <https://www.epa.gov/wqc/national-recommended-water-quality-criteria-human-health-criteria-table>

Cylindrospermopsin — EPA national recommended water quality criteria for human health: pollutant concentration thresholds


**Pollutant name:** Di-n-Butyl Phthalate (P)

**CAS Registry Number:** 84742

**Water + Organism criterion (µg/L):** 20

**Organism Only criterion (µg/L):** 30

> Di-n-Butyl Phthalate (P) | 84742 | 20 | 30 | 2015

Source: <https://www.epa.gov/wqc/national-recommended-water-quality-criteria-human-health-criteria-table>

Di-n-Butyl Phthalate (P) — EPA national recommended water quality criteria for human health: pollutant concentration thresholds


**Pollutant name:** Dibenzo(a,h)anthracene (P)

**CAS Registry Number:** 53703

**Water + Organism criterion (µg/L):** 0.00012

**Organism Only criterion (µg/L):** 0.00013

> Dibenzo(a,h)anthracene (P) | 53703 | 0.00012 | 0.00013 | 2015

Source: <https://www.epa.gov/wqc/national-recommended-water-quality-criteria-human-health-criteria-table>

Dibenzo(a,h)anthracene (P) — EPA national recommended water quality criteria for human health: pollutant concentration thresholds


**Pollutant name:** Dichlorobromomethane (P)

**CAS Registry Number:** 75274

**Water + Organism criterion (µg/L):** 0.95

**Organism Only criterion (µg/L):** 27

> Dichlorobromomethane (P) | 75274 | 0.95 | 27 | 2015

Source: <https://www.epa.gov/wqc/national-recommended-water-quality-criteria-human-health-criteria-table>

Dichlorobromomethane (P) — EPA national recommended water quality criteria for human health: pollutant concentration thresholds


**Pollutant name:** Dieldrin (P)

**CAS Registry Number:** 60571

**Water + Organism criterion (µg/L):** 0.0000012

**Organism Only criterion (µg/L):** 0.0000012

> Dieldrin (P) | 60571 | 0.0000012 | 0.0000012 | 2015

Source: <https://www.epa.gov/wqc/national-recommended-water-quality-criteria-human-health-criteria-table>

Dieldrin (P) — EPA national recommended water quality criteria for human health: pollutant concentration thresholds


**Pollutant name:** Diethyl Phthalate (P)

**CAS Registry Number:** 84662

**Water + Organism criterion (µg/L):** 600

**Organism Only criterion (µg/L):** 600

> Diethyl Phthalate (P) | 84662 | 600 | 600 | 2015

Source: <https://www.epa.gov/wqc/national-recommended-water-quality-criteria-human-health-criteria-table>

Diethyl Phthalate (P) — EPA national recommended water quality criteria for human health: pollutant concentration thresholds


**Pollutant name:** Dimethyl Phthalate (P)

**CAS Registry Number:** 131113

**Water + Organism criterion (µg/L):** 2,000

**Organism Only criterion (µg/L):** 2,000

> Dimethyl Phthalate (P) | 131113 | 2,000 | 2,000 | 2015

Source: <https://www.epa.gov/wqc/national-recommended-water-quality-criteria-human-health-criteria-table>

Dimethyl Phthalate (P) — EPA national recommended water quality criteria for human health: pollutant concentration thresholds


**Pollutant name:** Dinitrophenols

**CAS Registry Number:** 25550587

**Water + Organism criterion (µg/L):** 10

**Organism Only criterion (µg/L):** 1,000

> Dinitrophenols | 25550587 | 10 | 1,000 | 2015

Source: <https://www.epa.gov/wqc/national-recommended-water-quality-criteria-human-health-criteria-table>

Dinitrophenols — EPA national recommended water quality criteria for human health: pollutant concentration thresholds


**Pollutant name:** Endosulfan Sulfate (P)

**CAS Registry Number:** 1031078

**Water + Organism criterion (µg/L):** 20

**Organism Only criterion (µg/L):** 40

> Endosulfan Sulfate (P) | 1031078 | 20 | 40 | 2015

Source: <https://www.epa.gov/wqc/national-recommended-water-quality-criteria-human-health-criteria-table>

Endosulfan Sulfate (P) — EPA national recommended water quality criteria for human health: pollutant concentration thresholds


**Pollutant name:** Endrin Aldehyde (P)

**CAS Registry Number:** 7421934

**Water + Organism criterion (µg/L):** 1

**Organism Only criterion (µg/L):** 1

> Endrin Aldehyde (P) | 7421934 | 1 | 1 | 2015

Source: <https://www.epa.gov/wqc/national-recommended-water-quality-criteria-human-health-criteria-table>

Endrin Aldehyde (P) — EPA national recommended water quality criteria for human health: pollutant concentration thresholds


**Pollutant name:** Endrin (P)

**CAS Registry Number:** 72208

**Water + Organism criterion (µg/L):** 0.03

**Organism Only criterion (µg/L):** 0.03

> Endrin (P) | 72208 | 0.03 | 0.03 | 2015

Source: <https://www.epa.gov/wqc/national-recommended-water-quality-criteria-human-health-criteria-table>

Endrin (P) — EPA national recommended water quality criteria for human health: pollutant concentration thresholds


**Pollutant name:** Ethylbenzene (P)

**CAS Registry Number:** 100414

**Water + Organism criterion (µg/L):** 68

**Organism Only criterion (µg/L):** 130

> Ethylbenzene (P) | 100414 | 68 | 130 | 2015

Source: <https://www.epa.gov/wqc/national-recommended-water-quality-criteria-human-health-criteria-table>

Ethylbenzene (P) — EPA national recommended water quality criteria for human health: pollutant concentration thresholds


**Pollutant name:** Fluoranthene (P)

**CAS Registry Number:** 206440

**Water + Organism criterion (µg/L):** 20

**Organism Only criterion (µg/L):** 20

> Fluoranthene (P) | 206440 | 20 | 20 | 2015

Source: <https://www.epa.gov/wqc/national-recommended-water-quality-criteria-human-health-criteria-table>

Fluoranthene (P) — EPA national recommended water quality criteria for human health: pollutant concentration thresholds


**Pollutant name:** Fluorene (P)

**CAS Registry Number:** 86737

**Water + Organism criterion (µg/L):** 50

**Organism Only criterion (µg/L):** 70

> Fluorene (P) | 86737 | 50 | 70 | 2015

Source: <https://www.epa.gov/wqc/national-recommended-water-quality-criteria-human-health-criteria-table>

Fluorene (P) — EPA national recommended water quality criteria for human health: pollutant concentration thresholds


**Pollutant name:** gamma-Hexachlorocyclohexane (HCH) [Lindane] (P)

**CAS Registry Number:** 58899

**Water + Organism criterion (µg/L):** 4.2

**Organism Only criterion (µg/L):** 4.4

> gamma-Hexachlorocyclohexane (HCH) [Lindane] (P) | 58899 | 4.2 | 4.4 | 2015

Source: <https://www.epa.gov/wqc/national-recommended-water-quality-criteria-human-health-criteria-table>

gamma-Hexachlorocyclohexane (HCH) [Lindane] (P) — EPA national recommended water quality criteria for human health: pollutant concentration thresholds


**Pollutant name:** Heptachlor Epoxide (P)

**CAS Registry Number:** 1024573

**Water + Organism criterion (µg/L):** 0.000032

**Organism Only criterion (µg/L):** 0.000032

> Heptachlor Epoxide (P) | 1024573 | 0.000032 | 0.000032 | 2015

Source: <https://www.epa.gov/wqc/national-recommended-water-quality-criteria-human-health-criteria-table>

Heptachlor Epoxide (P) — EPA national recommended water quality criteria for human health: pollutant concentration thresholds


**Pollutant name:** Heptachlor (P)

**CAS Registry Number:** 76448

**Water + Organism criterion (µg/L):** 0.0000059

**Organism Only criterion (µg/L):** 0.0000059

> Heptachlor (P) | 76448 | 0.0000059 | 0.0000059 | 2015

Source: <https://www.epa.gov/wqc/national-recommended-water-quality-criteria-human-health-criteria-table>

Heptachlor (P) — EPA national recommended water quality criteria for human health: pollutant concentration thresholds


**Pollutant name:** Hexachlorobenzene (P)

**CAS Registry Number:** 118741

**Water + Organism criterion (µg/L):** 0.000079

**Organism Only criterion (µg/L):** 0.000079

> Hexachlorobenzene (P) | 118741 | 0.000079 | 0.000079 | 2015

Source: <https://www.epa.gov/wqc/national-recommended-water-quality-criteria-human-health-criteria-table>

Hexachlorobenzene (P) — EPA national recommended water quality criteria for human health: pollutant concentration thresholds


**Pollutant name:** Hexachlorobutadiene (P)

**CAS Registry Number:** 87683

**Water + Organism criterion (µg/L):** 0.01

**Organism Only criterion (µg/L):** 0.01

> Hexachlorobutadiene (P) | 87683 | 0.01 | 0.01 | 2015

Source: <https://www.epa.gov/wqc/national-recommended-water-quality-criteria-human-health-criteria-table>

Hexachlorobutadiene (P) — EPA national recommended water quality criteria for human health: pollutant concentration thresholds


**Pollutant name:** Hexachlorocyclohexane (HCH) -Technical

**CAS Registry Number:** 608731

**Water + Organism criterion (µg/L):** 0.0066

**Organism Only criterion (µg/L):** 0.010

> Hexachlorocyclohexane (HCH) -Technical | 608731 | 0.0066 | 0.010 | 2015

Source: <https://www.epa.gov/wqc/national-recommended-water-quality-criteria-human-health-criteria-table>

Hexachlorocyclohexane (HCH) -Technical — EPA national recommended water quality criteria for human health: pollutant concentration thresholds


**Pollutant name:** Hexachlorocyclopentadiene (P)

**CAS Registry Number:** 77474

**Water + Organism criterion (µg/L):** 4

**Organism Only criterion (µg/L):** 4

> Hexachlorocyclopentadiene (P) | 77474 | 4 | 4 | 2015

Source: <https://www.epa.gov/wqc/national-recommended-water-quality-criteria-human-health-criteria-table>

Hexachlorocyclopentadiene (P) — EPA national recommended water quality criteria for human health: pollutant concentration thresholds


**Pollutant name:** Hexachloroethane (P)

**CAS Registry Number:** 67721

**Water + Organism criterion (µg/L):** 0.1

**Organism Only criterion (µg/L):** 0.1

> Hexachloroethane (P) | 67721 | 0.1 | 0.1 | 2015

Source: <https://www.epa.gov/wqc/national-recommended-water-quality-criteria-human-health-criteria-table>

Hexachloroethane (P) — EPA national recommended water quality criteria for human health: pollutant concentration thresholds


**Pollutant name:** Indeno(1,2,3-cd)pyrene (P)

**CAS Registry Number:** 193395

**Water + Organism criterion (µg/L):** 0.0012

**Organism Only criterion (µg/L):** 0.0013

> Indeno(1,2,3-cd)pyrene (P) | 193395 | 0.0012 | 0.0013 | 2015

Source: <https://www.epa.gov/wqc/national-recommended-water-quality-criteria-human-health-criteria-table>

Indeno(1,2,3-cd)pyrene (P) — EPA national recommended water quality criteria for human health: pollutant concentration thresholds


**Pollutant name:** Isophorone (P)

**CAS Registry Number:** 78591

**Water + Organism criterion (µg/L):** 34

**Organism Only criterion (µg/L):** 1,800

> Isophorone (P) | 78591 | 34 | 1,800 | 2015

Source: <https://www.epa.gov/wqc/national-recommended-water-quality-criteria-human-health-criteria-table>

Isophorone (P) — EPA national recommended water quality criteria for human health: pollutant concentration thresholds


**Pollutant name:** Manganese

**CAS Registry Number:** 7439965

**Water + Organism criterion (µg/L):** 50

**Organism Only criterion (µg/L):** 100

> Manganese | 7439965 | 50 | 100 | 1993

Source: <https://www.epa.gov/wqc/national-recommended-water-quality-criteria-human-health-criteria-table>

Manganese — EPA national recommended water quality criteria for human health: pollutant concentration thresholds


**Pollutant name:** Methoxychlor

**CAS Registry Number:** 72435

**Water + Organism criterion (µg/L):** 0.02

**Organism Only criterion (µg/L):** 0.02

> Methoxychlor | 72435 | 0.02 | 0.02 | 2015

Source: <https://www.epa.gov/wqc/national-recommended-water-quality-criteria-human-health-criteria-table>

Methoxychlor — EPA national recommended water quality criteria for human health: pollutant concentration thresholds


**Pollutant name:** Methyl Bromide (P)

**CAS Registry Number:** 74839

**Water + Organism criterion (µg/L):** 100

**Organism Only criterion (µg/L):** 10,000

> Methyl Bromide (P) | 74839 | 100 | 10,000 | 2015

Source: <https://www.epa.gov/wqc/national-recommended-water-quality-criteria-human-health-criteria-table>

Methyl Bromide (P) — EPA national recommended water quality criteria for human health: pollutant concentration thresholds


**Pollutant name:** Methylene Chloride (P)

**CAS Registry Number:** 75092

**Water + Organism criterion (µg/L):** 20

**Organism Only criterion (µg/L):** 1,000

> Methylene Chloride (P) | 75092 | 20 | 1,000 | 2015

Source: <https://www.epa.gov/wqc/national-recommended-water-quality-criteria-human-health-criteria-table>

Methylene Chloride (P) — EPA national recommended water quality criteria for human health: pollutant concentration thresholds


**Pollutant name:** Methylmercury (P)

**CAS Registry Number:** 22967926

**Water + Organism criterion (µg/L):** —

**Organism Only criterion (µg/L):** 0.3 mg/kg

> Methylmercury (P) | 22967926 | — | 0.3 mg/kg | 2001

Source: <https://www.epa.gov/wqc/national-recommended-water-quality-criteria-human-health-criteria-table>

Methylmercury (P) — EPA national recommended water quality criteria for human health: pollutant concentration thresholds


**Pollutant name:** Microcystins

**CAS Registry Number:** 101043-37-2

**Water + Organism criterion (µg/L):** —

**Organism Only criterion (µg/L):** —

> Microcystins | 101043-37-2 | — | — | 2019

Source: <https://www.epa.gov/wqc/national-recommended-water-quality-criteria-human-health-criteria-table>

Microcystins — EPA national recommended water quality criteria for human health: pollutant concentration thresholds


**Pollutant name:** N-Nitrosodi-n-Propylamine (P)

**CAS Registry Number:** 621647

**Water + Organism criterion (µg/L):** 0.0050

**Organism Only criterion (µg/L):** 0.51

> N-Nitrosodi-n-Propylamine (P) | 621647 | 0.0050 | 0.51 | 2002

Source: <https://www.epa.gov/wqc/national-recommended-water-quality-criteria-human-health-criteria-table>

N-Nitrosodi-n-Propylamine (P) — EPA national recommended water quality criteria for human health: pollutant concentration thresholds


**Pollutant name:** N-Nitrosodimethylamine (P)

**CAS Registry Number:** 62759

**Water + Organism criterion (µg/L):** 0.00069

**Organism Only criterion (µg/L):** 3.0

> N-Nitrosodimethylamine (P) | 62759 | 0.00069 | 3.0 | 2002

Source: <https://www.epa.gov/wqc/national-recommended-water-quality-criteria-human-health-criteria-table>

N-Nitrosodimethylamine (P) — EPA national recommended water quality criteria for human health: pollutant concentration thresholds


**Pollutant name:** N-Nitrosodiphenylamine (P)

**CAS Registry Number:** 86306

**Water + Organism criterion (µg/L):** 3.3

**Organism Only criterion (µg/L):** 6.0

> N-Nitrosodiphenylamine (P) | 86306 | 3.3 | 6.0 | 2002

Source: <https://www.epa.gov/wqc/national-recommended-water-quality-criteria-human-health-criteria-table>

N-Nitrosodiphenylamine (P) — EPA national recommended water quality criteria for human health: pollutant concentration thresholds


**Pollutant name:** Nickel (P)

**CAS Registry Number:** 7440020

**Water + Organism criterion (µg/L):** 610

**Organism Only criterion (µg/L):** 4,600

> Nickel (P) | 7440020 | 610 | 4,600 | 1998

Source: <https://www.epa.gov/wqc/national-recommended-water-quality-criteria-human-health-criteria-table>

Nickel (P) — EPA national recommended water quality criteria for human health: pollutant concentration thresholds


**Pollutant name:** Nitrates

**CAS Registry Number:** 14797558

**Water + Organism criterion (µg/L):** 10,000

**Organism Only criterion (µg/L):** —

> Nitrates | 14797558 | 10,000 | — | 1986

Source: <https://www.epa.gov/wqc/national-recommended-water-quality-criteria-human-health-criteria-table>

Nitrates — EPA national recommended water quality criteria for human health: pollutant concentration thresholds


**Pollutant name:** Nitrobenzene (P)

**CAS Registry Number:** 98953

**Water + Organism criterion (µg/L):** 10

**Organism Only criterion (µg/L):** 600

> Nitrobenzene (P) | 98953 | 10 | 600 | 2015

Source: <https://www.epa.gov/wqc/national-recommended-water-quality-criteria-human-health-criteria-table>

Nitrobenzene (P) — EPA national recommended water quality criteria for human health: pollutant concentration thresholds


**Pollutant name:** Nitrosamines

**CAS Registry Number:** —

**Water + Organism criterion (µg/L):** 0.0008

**Organism Only criterion (µg/L):** 1.24

> Nitrosamines | — | 0.0008 | 1.24 | 1980

Source: <https://www.epa.gov/wqc/national-recommended-water-quality-criteria-human-health-criteria-table>

Nitrosamines — EPA national recommended water quality criteria for human health: pollutant concentration thresholds


**Pollutant name:** Nitrosodibutylamine

**CAS Registry Number:** 924163

**Water + Organism criterion (µg/L):** 0.0063

**Organism Only criterion (µg/L):** 0.22

> Nitrosodibutylamine | 924163 | 0.0063 | 0.22 | 2002

Source: <https://www.epa.gov/wqc/national-recommended-water-quality-criteria-human-health-criteria-table>

Nitrosodibutylamine — EPA national recommended water quality criteria for human health: pollutant concentration thresholds


**Pollutant name:** Nitrosodiethylamine

**CAS Registry Number:** 55185

**Water + Organism criterion (µg/L):** 0.0008

**Organism Only criterion (µg/L):** 1.24

> Nitrosodiethylamine | 55185 | 0.0008 | 1.24 | 2002

Source: <https://www.epa.gov/wqc/national-recommended-water-quality-criteria-human-health-criteria-table>

Nitrosodiethylamine — EPA national recommended water quality criteria for human health: pollutant concentration thresholds


**Pollutant name:** Nitrosopyrrolidine

**CAS Registry Number:** 930552

**Water + Organism criterion (µg/L):** 0.016

**Organism Only criterion (µg/L):** 34

> Nitrosopyrrolidine | 930552 | 0.016 | 34 | 2002

Source: <https://www.epa.gov/wqc/national-recommended-water-quality-criteria-human-health-criteria-table>

Nitrosopyrrolidine — EPA national recommended water quality criteria for human health: pollutant concentration thresholds


**Pollutant name:** p,p′-Dichlorodiphenyldichloroethane (DDD) (P)

**CAS Registry Number:** 72548

**Water + Organism criterion (µg/L):** 0.00012

**Organism Only criterion (µg/L):** 0.00012

> p,p′-Dichlorodiphenyldichloroethane (DDD) (P) | 72548 | 0.00012 | 0.00012 | 2015

Source: <https://www.epa.gov/wqc/national-recommended-water-quality-criteria-human-health-criteria-table>

p,p′-Dichlorodiphenyldichloroethane (DDD) (P) — EPA national recommended water quality criteria for human health: pollutant concentration thresholds


**Pollutant name:** p,p′-Dichlorodiphenyldichloroethylene (DDE) (P)

**CAS Registry Number:** 72559

**Water + Organism criterion (µg/L):** 0.000018

**Organism Only criterion (µg/L):** 0.000018

> p,p′-Dichlorodiphenyldichloroethylene (DDE) (P) | 72559 | 0.000018 | 0.000018 | 2015

Source: <https://www.epa.gov/wqc/national-recommended-water-quality-criteria-human-health-criteria-table>

p,p′-Dichlorodiphenyldichloroethylene (DDE) (P) — EPA national recommended water quality criteria for human health: pollutant concentration thresholds


**Pollutant name:** p,p′-Dichlorodiphenyltrichloroethane (DDT) (P)

**CAS Registry Number:** 50293

**Water + Organism criterion (µg/L):** 0.000030

**Organism Only criterion (µg/L):** 0.000030

> p,p′-Dichlorodiphenyltrichloroethane (DDT) (P) | 50293 | 0.000030 | 0.000030 | 2015

Source: <https://www.epa.gov/wqc/national-recommended-water-quality-criteria-human-health-criteria-table>

p,p′-Dichlorodiphenyltrichloroethane (DDT) (P) — EPA national recommended water quality criteria for human health: pollutant concentration thresholds


**Pollutant name:** Pentachlorobenzene

**CAS Registry Number:** 608935

**Water + Organism criterion (µg/L):** 0.1

**Organism Only criterion (µg/L):** 0.1

> Pentachlorobenzene | 608935 | 0.1 | 0.1 | 2015

Source: <https://www.epa.gov/wqc/national-recommended-water-quality-criteria-human-health-criteria-table>

Pentachlorobenzene — EPA national recommended water quality criteria for human health: pollutant concentration thresholds


**Pollutant name:** Pentachlorophenol (P)

**CAS Registry Number:** 87865

**Water + Organism criterion (µg/L):** 0.03

**Organism Only criterion (µg/L):** 0.04

> Pentachlorophenol (P) | 87865 | 0.03 | 0.04 | 2015

Source: <https://www.epa.gov/wqc/national-recommended-water-quality-criteria-human-health-criteria-table>

Pentachlorophenol (P) — EPA national recommended water quality criteria for human health: pollutant concentration thresholds


**Pollutant name:** Perfluorobutane Sulfonic Acid (PFBS) (Draft)

**CAS Registry Number:** —

**Water + Organism criterion (µg/L):** —

**Organism Only criterion (µg/L):** —

> Perfluorobutane Sulfonic Acid (PFBS) (Draft) | — | — | — | —

Source: <https://www.epa.gov/wqc/national-recommended-water-quality-criteria-human-health-criteria-table>

Perfluorobutane Sulfonic Acid (PFBS) (Draft) — EPA national recommended water quality criteria for human health: pollutant concentration thresholds


**Pollutant name:** Perfluorooctane Sulfonate (PFOS) (Draft)

**CAS Registry Number:** —

**Water + Organism criterion (µg/L):** —

**Organism Only criterion (µg/L):** —

> Perfluorooctane Sulfonate (PFOS) (Draft) | — | — | — | —

Source: <https://www.epa.gov/wqc/national-recommended-water-quality-criteria-human-health-criteria-table>

Perfluorooctane Sulfonate (PFOS) (Draft) — EPA national recommended water quality criteria for human health: pollutant concentration thresholds


**Pollutant name:** Perfluorooctanoic Acid (PFOA) (Draft)

**CAS Registry Number:** —

**Water + Organism criterion (µg/L):** —

**Organism Only criterion (µg/L):** —

> Perfluorooctanoic Acid (PFOA) (Draft) | — | — | — | —

Source: <https://www.epa.gov/wqc/national-recommended-water-quality-criteria-human-health-criteria-table>

Perfluorooctanoic Acid (PFOA) (Draft) — EPA national recommended water quality criteria for human health: pollutant concentration thresholds


**Pollutant name:** pH

**CAS Registry Number:** —

**Water + Organism criterion (µg/L):** 5 – 9

**Organism Only criterion (µg/L):** —

> pH | — | 5 – 9 | — | 1986

Source: <https://www.epa.gov/wqc/national-recommended-water-quality-criteria-human-health-criteria-table>

pH — EPA national recommended water quality criteria for human health: pollutant concentration thresholds


**Pollutant name:** Phenol (P)

**CAS Registry Number:** 108952

**Water + Organism criterion (µg/L):** 4,000

**Organism Only criterion (µg/L):** 300,000

> Phenol (P) | 108952 | 4,000 | 300,000 | 2015

Source: <https://www.epa.gov/wqc/national-recommended-water-quality-criteria-human-health-criteria-table>

Phenol (P) — EPA national recommended water quality criteria for human health: pollutant concentration thresholds


**Pollutant name:** Polychlorinated Biphenyls (PCBs) (P)

**CAS Registry Number:** —

**Water + Organism criterion (µg/L):** 0.000064

**Organism Only criterion (µg/L):** 0.000064

> Polychlorinated Biphenyls (PCBs) (P) | — | 0.000064 | 0.000064 | 2002

Source: <https://www.epa.gov/wqc/national-recommended-water-quality-criteria-human-health-criteria-table>

Polychlorinated Biphenyls (PCBs) (P) — EPA national recommended water quality criteria for human health: pollutant concentration thresholds


**Pollutant name:** Pyrene (P)

**CAS Registry Number:** 129000

**Water + Organism criterion (µg/L):** 20

**Organism Only criterion (µg/L):** 30

> Pyrene (P) | 129000 | 20 | 30 | 2015

Source: <https://www.epa.gov/wqc/national-recommended-water-quality-criteria-human-health-criteria-table>

Pyrene (P) — EPA national recommended water quality criteria for human health: pollutant concentration thresholds


**Pollutant name:** Selenium (P)

**CAS Registry Number:** 7782492

**Water + Organism criterion (µg/L):** 170

**Organism Only criterion (µg/L):** 4200

> Selenium (P) | 7782492 | 170 | 4200 | 2002

Source: <https://www.epa.gov/wqc/national-recommended-water-quality-criteria-human-health-criteria-table>

Selenium (P) — EPA national recommended water quality criteria for human health: pollutant concentration thresholds


**Pollutant name:** Solids Dissolved and Salinity

**CAS Registry Number:** —

**Water + Organism criterion (µg/L):** 250,000

**Organism Only criterion (µg/L):** —

> Solids Dissolved and Salinity | — | 250,000 | — | 1986

Source: <https://www.epa.gov/wqc/national-recommended-water-quality-criteria-human-health-criteria-table>

Solids Dissolved and Salinity — EPA national recommended water quality criteria for human health: pollutant concentration thresholds


**Pollutant name:** Tetrachloroethylene (P)

**CAS Registry Number:** 127184

**Water + Organism criterion (µg/L):** 10

**Organism Only criterion (µg/L):** 29

> Tetrachloroethylene (P) | 127184 | 10 | 29 | 2015

Source: <https://www.epa.gov/wqc/national-recommended-water-quality-criteria-human-health-criteria-table>

Tetrachloroethylene (P) — EPA national recommended water quality criteria for human health: pollutant concentration thresholds


**Pollutant name:** Thallium (P)

**CAS Registry Number:** 7440280

**Water + Organism criterion (µg/L):** 0.24

**Organism Only criterion (µg/L):** 0.47

> Thallium (P) | 7440280 | 0.24 | 0.47 | 2003

Source: <https://www.epa.gov/wqc/national-recommended-water-quality-criteria-human-health-criteria-table>

Thallium (P) — EPA national recommended water quality criteria for human health: pollutant concentration thresholds


**Pollutant name:** Toluene (P)

**CAS Registry Number:** 108883

**Water + Organism criterion (µg/L):** 57

**Organism Only criterion (µg/L):** 520

> Toluene (P) | 108883 | 57 | 520 | 2015

Source: <https://www.epa.gov/wqc/national-recommended-water-quality-criteria-human-health-criteria-table>

Toluene (P) — EPA national recommended water quality criteria for human health: pollutant concentration thresholds


**Pollutant name:** Toxaphene (P)

**CAS Registry Number:** 8001352

**Water + Organism criterion (µg/L):** 0.00070

**Organism Only criterion (µg/L):** 0.00071

> Toxaphene (P) | 8001352 | 0.00070 | 0.00071 | 2015

Source: <https://www.epa.gov/wqc/national-recommended-water-quality-criteria-human-health-criteria-table>

Toxaphene (P) — EPA national recommended water quality criteria for human health: pollutant concentration thresholds


**Pollutant name:** Trans-1,2-Dichloroethylene (P)

**CAS Registry Number:** 156605

**Water + Organism criterion (µg/L):** 100

**Organism Only criterion (µg/L):** 4,000

> Trans-1,2-Dichloroethylene (P) | 156605 | 100 | 4,000 | 2015

Source: <https://www.epa.gov/wqc/national-recommended-water-quality-criteria-human-health-criteria-table>

Trans-1,2-Dichloroethylene (P) — EPA national recommended water quality criteria for human health: pollutant concentration thresholds


**Pollutant name:** Trichloroethylene (P)

**CAS Registry Number:** 79016

**Water + Organism criterion (µg/L):** 0.6

**Organism Only criterion (µg/L):** 7

> Trichloroethylene (P) | 79016 | 0.6 | 7 | 2015

Source: <https://www.epa.gov/wqc/national-recommended-water-quality-criteria-human-health-criteria-table>

Trichloroethylene (P) — EPA national recommended water quality criteria for human health: pollutant concentration thresholds


**Pollutant name:** Vinyl Chloride (P)

**CAS Registry Number:** 75014

**Water + Organism criterion (µg/L):** 0.022

**Organism Only criterion (µg/L):** 1.6

> Vinyl Chloride (P) | 75014 | 0.022 | 1.6 | 2015

Source: <https://www.epa.gov/wqc/national-recommended-water-quality-criteria-human-health-criteria-table>

Vinyl Chloride (P) — EPA national recommended water quality criteria for human health: pollutant concentration thresholds


**Pollutant name:** Zinc (P)

**CAS Registry Number:** 7440666

**Water + Organism criterion (µg/L):** 7,400

**Organism Only criterion (µg/L):** 26,000

> Zinc (P) | 7440666 | 7,400 | 26,000 | 2002

Source: <https://www.epa.gov/wqc/national-recommended-water-quality-criteria-human-health-criteria-table>

Zinc (P) — EPA national recommended water quality criteria for human health: pollutant concentration thresholds