The table lists the CAS number for each constituent and the groundwater quality protection standards which are currently available for the 40 CFR 258 Appendix II constituents required for assessment monitoring of groundwater at a solid waste facility as specified by Subsection R315-308-2(12).

TableAppendix II ConstituentCASGroundwater Protection Standard (mg/l)2,4-D94-75-70.072,4,5-T93-76-50.372,4,5-TP93-72-10.05Anthracene120-12-710Benzo(a)pyrene50-32-80.0002bis(2-Ethylhexy)phthalate117-81-70.006Chlordane57-74-90.002Cyanide57-12-50.2Dinoseb88-85-70.007Endrin72-20-80.002Heptachlor76-44-80.0004Heptachlor epoxide1024-57-30.0002Hexachlorobenzene118-74-10.001Hexachlorocyclopentadiene77-47-40.05Lindane58-89-90.0002Methoxychlor72-43-50.04Pentachlorophenol87-86-50.001Polychlorinated (biphenyls PCBs)1336-36-30.0005Tin7440-31-521.9Toxaphene8001-35-20.0031,2,4-Trichlorobenzene120-82-10.07

KEY: solid waste management, waste disposal

Date of Last Change: October 15, 2024

Notice of Continuation: November 30, 2022

Authorizing, and Implemented or Interpreted Law: 19-6-105; 40 CFR 258