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 Virginia Administrative Code (Last Updated: January 10, 2017)
 Title 12. Health
 Agency 5. Department of Health
 Chapter 590. Waterworks Regulations

  Section 1280:14. APPENDIX N. INORGANIC COMPOUNDS AND ORGANIC CHEMICALS  

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  • APPENDIX N. INORGANIC COMPOUNDS AND ORGANIC CHEMICALS

    APPENDIX N. INORGANIC COMPOUNDS AND ORGANIC CHEMICALS.

    TABLE I
    INORGANIC COMPOUNDS

    Contaminant

    BAT(s)

    Arsenicd

    1, 2, 5, 6, 7, 9, 12e

    Antimony

    2, 7

    Asbestos

    2, 3, 8

    Barium

    5, 6, 7, 9

    Beryllium

    1, 2, 5, 6, 7

    Cadmium

    2, 5, 6, 7

    Chromium

    2, 5, 6b, 7

    Cyanide

    5, 7, 13

    Fluoride

    1, 7, 9

    Mercury

    2a, 4, 6a, 7a

    Nickel

    5, 6, 7

    Nitrate

    5, 7, 9

    Nitrite

    5, 7

    Selenium

    1, 2c, 6, 7, 9

    Thallium

    1,5

    Key to Best Available Technologies/Treatment Techniques

    1. Activated Alumina

    2. Coagulation/Filtration (except for waterworks serving less than 500 service connections)

    3. Direct or Diatomite Filtration

    4. Granular Activated Carbon

    5. Ion Exchange

    6. Lime Softening (except for waterworks serving less than 500 service connections)

    7. Reverse Osmosis

    8. Corrosion Control

    9. Electrodialysis/Electrodialysis Reversing

    10. Chlorine

    11. Ultraviolet

    12. Oxidation/Filtration

    13. Alkaline Chlorination pH ≥ 8.5

    NOTES ON BAT DESIGNATIONS

    a. BAT only if influent mercury concentrations are less than or equal to 10 µg/l

    b. BAT for Chromium III only

    c. BAT for Selenium IV only

    d. BATs for Arsenic V. Preoxidation may be required to convert Arsenic III to Arsenic V.

    e. To obtain high removals, iron to arsenic ratio must be at least 20:1.

    TABLE II
    ORGANIC CHEMICALS

    Contaminant

    BAT(s)

    Acrylamide

    3

    Alachlor

    1

    Aldicarb

    1

    Aldicarb sulfoxide

    1

    Aldicarb sulfone

    1

    Atrazine

    1

    Benzene

    1, 2

    Carbofuran

    1

    Carbon tetrachloride

    1, 2

    Chlordane

    1

    2,4-D

    1

    Dibromochloropropane (DBCP)

    1, 2

    o-Dichlorobenzene

    1, 2

    p-Dichlorobenzene

    1, 2

    1,2-Dichloroethane

    1, 2

    1,1-Dichloroethylene

    1, 2

    cis-1,2-Dichloroethylene

    1, 2

    trans-1,2-Dichloroethylene

    1, 2

    1,2-Dichloropropane

    1, 2

    Epichlorohydrin

    3

    Ethylene dibromide (EDB)

    1, 2

    Ethylbenzene

    1, 2

    Heptachlor

    1

    Heptachlor epoxide

    1

    Lindane

    1

    Methoxychlor

    1

    Monochlorobenzene

    1, 2

    PCBs

    1

    Pentachlorophenol

    1

    Styrene

    1, 2

    2,4,5-TP (Silvex)

    1

    Tetrachloroethylene

    1, 2

    1,1,1-Trichloroethane

    1, 2

    Trichloroethylene

    1, 2

    Toluene

    1, 2

    Toxaphene

    1

    Vinyl chloride

    2

    Xylenes (total)

    1, 2

    Benzo(a)pyrene

    1

    Dalapon

    1

    Dichloromethane

    2

    Di(2-ethylhexyl)adipate

    1, 2

    Di(2-ethylhexyl)phthalate

    1

    Dinoseb

    1

    Diquat

    1

    Endothall

    1

    Endrin

    1

    Glyphosate

    4

    Hexachlorobenzene

    1

    Hexachloropentadiene

    1, 2

    Oxamyl (Vydate)

    1

    Picloram

    1

    Simazine

    1

    1,2,4-Trichlorobenzene

    1, 2

    1,1,2-Trichloroethane

    1, 2

    2,3,7,8-TCDD (Dioxin)

    1

    Key to Best Available Technologies/Treatment Techniques

    1. Granular Activated Carbon

    2. Packed Tower Aeration

    3. Polymer Addition Practices

    4. Oxidation (chlorination, with the exception of water having cyanide (as free cyanide) exceeding 0.2 mg/l, or ozonation)

Historical Notes

Amended, Volume 22, Issue 15, eff. May 3, 2006; Volume 22, Issue 24, eff. Sept. 6, 2006.

Statutory Authority

§§ 32.1-12 and 32.1-170 of the Code of Virginia.