[Code of Federal Regulations]

[Title 40, Volume 24]

[Revised as of July 1, 2006]

From the U.S. Government Printing Office via GPO Access

[CITE: 40CFR257.8]



[Page 381]

 

                   TITLE 40--PROTECTION OF ENVIRONMENT

 

         CHAPTER I--ENVIRONMENTAL PROTECTION AGENCY (CONTINUED)

 

PART 257_CRITERIA FOR CLASSIFICATION OF SOLID WASTE DISPOSAL FACILITIES 

AND PRACTICES--Table of Contents

 

  Subpart B_Disposal Standards for the Receipt of Conditionally Exempt 

 Small Quantity Generator (CESQG) Wastes at Non-Municipal Non-Hazardous 

                          Waste Disposal Units

 

Sec.  257.8  Floodplains.



    (a) Owners or operators of new units, existing units, and lateral 

expansions located in 100-year floodplains must demonstrate that the 

unit will not restrict the flow of the 100-year flood, reduce the 

temporary water storage capacity of the floodplain, or result in washout 

of solid waste so as to pose a hazard to human health and the 

environment. The owner or operator must place the demonstration in the 

operating record and notify the State Director that it has been placed 

in the operating record.

    (b) For purposes of this section:

    (1) Floodplain means the lowland and relatively flat areas adjoining 

inland and coastal waters, including flood-prone areas of offshore 

islands, that are inundated by the 100-year flood.

    (2) 100-year flood means a flood that has a 1-percent or greater 

chance of recurring in any given year or a flood of a magnitude equalled 

or exceeded once in 100 years on the average over a significantly long 

period.

    (3) Washout means the carrying away of solid waste by waters of the 

base flood.