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Regional UIC Land Ban Contact
Brian
Graves, UIC Land Ban Coordinator, Ground Water/UIC Section (6WQ-SG),
Source Water Protection Branch, Water Quality Protection Division, Environmental
Protection Agency - Region 6, 1445 Ross Avenue, Dallas, Texas 75202. Ph: (214)
665-7193 / Fax: (214) 665-2191.
Background
On November 8, 1984, the President
signed into law the Hazardous and Solid Waste Amendments (HSWA) to the
Resource Conservation and Recovery Act (RCRA). The portion of these Amendments
that discuss the prohibition of land disposal of restricted hazardous
waste is United
State Code (USC) Title 42 §6924 (d) - (m).
The first rule making to implement the land disposal restrictions was
published on November 7, 1986, and was codified at Title
40 of the Code of Federal Regulations (CFR) Part 268.
Additional rule making has occurred since 1986, adding additional hazardous
waste to the restricted list. All of these subsequent rules are also included
in 40 CFR Part 268.
As part of the HSWA Amendments there is a provision that allows an operator to petition the Administrator for an exemption to this land disposal prohibition if the operator "demonstrated to the Administer, to a reasonable degree of certainty, that there will be no migration of hazardous constituents from the disposal unit or injection zone for as long as the wastes remain hazardous." Regulatorily, this has been defined as 10,000 years. Through the years this demonstration has become known as an injection well no migration petition.
The regulations that have been
promulgated and are applicable to the injection of restricted hazardous
waste are listed at 40
CFR Part 148.
Subpart C of these regulations outlines the standards and procedures for
any person seeking an exemption from the land disposal prohibition for
injection of restricted hazardous waste. Included in this Subpart are
the requirements of a no migration petition demonstration, the technical
information that needs to be submitted in support of a petition, information
regarding the review, public participation, approval or denial of a petition,
and the opportunity to modify or reissue a petition.
Currently only four EPA Regions have approved injection well no migration petitions. This is based on the occurrence of industries that generate large volumes of wastewater that isn't conducive to treating and surface release and the presence of the proper geology for disposal of large volumes of wastewater. Proper geologic conditions require a disposal formation that is below the lowest USDW and has sufficient thickness, areal extent, and interconnected pore space to accept the large volumes of wastewater. This disposal formation called the injection interval must also be overlain by confining layers of impermeable rocks such as shales, nonporous carbonates, salt or anhydrite to prevent upward movement of the injected waste. This confining layer contains the waste in the disposal formations for as long as they remain hazardous. The Gulf Coast contains this type of geology and approximately 70% of the nations refining and petrochemical industry. As can be seen in the table below, this mix of industry and appropriate geology has resulted in more than 70% of all active injection well no migration petitions being in Region 6.
Injection
Well No Migration Petitions by Region As of March 2006
|
||
Region
|
Approved
Petitions
|
Active
Petitions
|
4
- Atlanta
|
4
|
2
|
5
- Chicago
|
11
|
10
|
6
- Dallas
|
38
|
35
|
7
- Kansas City
|
1
|
1
|
TOTALS
|
54
|
48
|
Since the Land Disposal Restrictions have been in effect Region 6 has developed several guidelines related to various elements of the no migration petition program. These guidelines have been offered to operators and their contractors as a guide to define what the Region needs to have addressed in a no migration demonstration and provide consistency among demonstrations. Below are the guidelines:
* All documents provided below are in PDF.
- Region 6 Petition Application Outline - 2007 (PDF) (57 KB, 18 pp)
- Region 6 Petition Reissuance Guideline - 1/14/98 (PDF) (11 KB, 4 pp)
- Region 6 Memo Addressing Additional Information Needed for a Petition - 1/14/99 (PDF) (19 KB, 5 pp)
- Current Region 6 Land Ban Health Based Limits Guideline - 1998 with limited Revisions (PDF) (66 KB, 24 pp)
- Region 6 UIC Pressure Falloff Testing Guideline, Third Revision - 8/8/2002 (PDF) (256 KB, 29 pp)
- Common Deficiencies/Issues in Recent Petition
Applications to Region 6 - 12/5/02 (PDF) (13 KB, 5 pp)