Hazardous Waste Management System; Identification and Listing of Hazardous Waste; Proposed Exclusion

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ENVIRONMENTAL PROTECTION AGENCY

40 CFR Part 261

[SW-FRL-6455-1]

Hazardous Waste Management System; Identification and Listing of

Hazardous Waste; Proposed Exclusion

AGENCY: Environmental Protection Agency (EPA).

ACTION: Proposed rule and request for comment.

-----------------------------------------------------------------------

SUMMARY: The EPA (``the Agency'' or ``we'' in this preamble) is

proposing to grant a petition submitted by Rhodia, Incorporated Houston

(Rhodia). Rhodia petitioned the Agency to exclude (or delist) filter-

cake sludge generated at its Houston, Harris County, Texas, facility

from the lists of hazardous wastes contained in 40 CFR 261.24, 261.31,

and 261.32 (hereinafter all sectional references are to 40 CFR unless

otherwise indicated).

Rhodia submitted this petition under Secs. 260.20 and 260.22(a).

Section 260.20 allows any person to petition the Administrator to

modify or revoke any provision of Secs. 260 through 266, 268 and 273.

Section 260.22(a) specifically provides generators the opportunity to

petition the Administrator to exclude a waste on a ``generator

specific'' basis from the hazardous waste lists.

The Agency bases its proposed decision to grant the petition on an

evaluation of waste-specific information provided by the petitioner.

If finalized, we would conclude that Rhodia's petitioned waste is

nonhazardous with respect to the original listing criteria and that the

waste process Rhodia uses will substantially reduce the likelihood of

migration of hazardous constituents from this waste. We would also

conclude that their process minimizes short-term and long-term threats

from the petitioned waste to human health and the environment.

DATES: We will accept comments until November 29, 1999. We will stamp

comments postmarked after the close of the comment period as ``late.''

These ``late'' comments may not be considered in formulating a final

decision.

Your requests for a hearing must reach EPA by November 1, 1999. The

request must contain the information prescribed in Sec. 260.20(d).

ADDRESSES: Please send three copies of your comments. Two copies should

be sent to William Gallagher, Delisting Section, Multimedia Planning

and Permitting Division (6PD-O), Environmental Protection Agency, 1445

Ross Avenue, Dallas, Texas 75202. A third copy should be sent to the

Texas Natural Resources Conservation Commission (TNRCC), P.O. Box

13087, Austin, Texas, 78711-3087. Identify your comments at the top

with this regulatory docket number: ``F-99-TXDEL-Rhodia.''

You should address requests for a hearing to the Acting Director,

Robert Hannesschlager, Multimedia Planning and Permitting Division

(6PD), Environmental Protection Agency, 1445 Ross Avenue, Dallas, Texas

75202.

FOR FURTHER INFORMATION CONTACT: James Harris at (214) 665-8302.

SUPPLEMENTARY INFORMATION:

The information in this section is organized as follows:

I. Overview Information

A. What action is EPA proposing?

B. Why is EPA proposing to approve this delisting?

C. How will Rhodia manage the waste if it is delisted?

D. When would EPA finalize the proposed delisting?

E. How would this action affect States?

II. Background

A. What is the history of the delisting program?

B. What is a delisting petition, and what does it require of a

petitioner?

C. What factors must EPA consider in deciding whether to grant a

delisting petition?

III. EPA's Evaluation of the Waste Data

A. What waste did Rhodia petition EPA to delist?

B. Who is Rhodia, and what process does it use?

C. How did Rhodia sample and analyze the waste data in this

petition?

D. What were the results of Rhodia's analysis?

E. How did EPA evaluate the risk of delisting this waste?

F. What did EPA conclude about Rhodia's analysis?

G. What other factors did EPA consider?

H. What is EPA's final evaluation of this delisting petition?

IV. Next Steps

A. With what conditions must the petitioner comply?

B. What happens if Rhodia violates the terms and conditions?

V. Public Comments

A. How can I, as an interested party, submit comments?

B. How may I review the docket or obtain copies of the proposed

exclusion?

VI. Regulatory Impact

VII. Regulatory Flexibility Act

VIII. Paperwork Reduction Act

IX. Unfunded Mandates Reform Act

X. Executive Order 12875

XI. Executive Order 13045

XII. Executive Order 13084

XIII. National Technology Transfer and Advancement Act

I. Overview Information

A. What Action is EPA Proposing?

The EPA is proposing:

(1) To grant Rhodia's petition to have it's filter-cake sludge

excluded, or delisted, from the definition of a hazardous waste,

subject to certain verification and monitoring conditions; and

(2) To use a fate and transport model to evaluate the potential

impact of the petitioned waste on human health and the environment. The

Agency uses this model to predict the concentration of hazardous

constituents released from the petitioned waste, once it is disposed.

B. Why Is EPA Proposing To Approve This Delisting?

Rhodia's petition requests a delisting for listed hazardous wastes.

Rhodia does not believe that the petitioned waste meets the criteria

for which EPA listed it. Rhodia also believes no additional

constituents or factors could cause the waste to be hazardous. EPA's

review of this petition included consideration of the original listing

criteria, and the additional factors required by HSWA. See section 222

of HSWA, 42 U.S.C. 6921(f), and 40 CFR 260.22(d)(1)-(4). In making the

initial delisting determination, EPA evaluated the petitioned waste

against the listing criteria and factors cited in Secs. 261.11 (a)(2)

and (a)(3). Based on this review, the EPA agrees with the petitioner

that the waste is nonhazardous with respect to the original listing

criteria. (If the EPA had found, based on this review, that the waste

remained hazardous based on the factors for which the waste were

originally listed, EPA would have proposed to deny the petition.) The

EPA evaluated the waste with respect to other factors or criteria to

assess whether there is a reasonable basis to believe that such

additional factors could cause the waste to be hazardous. The EPA

considered whether the waste is acutely toxic, the concentration of the

constituents in the waste, their tendency to migrate and to

bioaccumulate, their persistence in the environment once released from

the waste, plausible and specific types of management of the petitioned

waste, the quantities of waste generated, and waste variability. The

EPA believes that the petitioned waste does not meet these criteria.

EPA's proposed decision to delist waste from Rhodia's facility is based

on the information submitted in support of today's rule, i.e.,

descriptions of the Sulfuric Acid Regeneration Unit (SARU) and the

Advanced Water Treatment (AWT) system and analytical data from the

Houston facility.

C. How Will Rhodia Manage the Waste If It Is Delisted?

Rhodia currently disposes of the petitioned waste (filter-cake

Sludge) generated at its facility in off-site, RCRA permitted TSD

facilities which are not owned/operated by Rhodia. If the waste is

delisted it will meet the criteria for disposal in a Subtitle D

landfill.

D. When Would EPA Finalize the Proposed Delisting?

The HSWA specifically requires EPA to provide notice and an

opportunity for comment before granting or denying a final exclusion.

Thus, EPA will not grant the exclusion until it addresses all timely

public comments (including those at public hearings, if any) on today's

proposal.

Section 3010(b) at 42 USCA 6930(b) of RCRA allows rules to become

effective in less than six months when the regulated community does not

need the six-month period to come into compliance. That is the case

here, because this rule, if finalized, would reduce the existing

requirements for persons generating hazardous wastes.

The EPA believes that this exclusion should be effective

immediately upon final publication because a six-month deadline is not

necessary to achieve the purpose of Sec. 3010(b), and a later effective

date would impose unnecessary hardship and expense on this petitioner.

These reasons also provide good cause for making this rule effective

immediately, upon final publication, under the Administrative Procedure

Act, 5 U.S.C. 553(d).

E. How Would This Action Affect States?

Because EPA is issuing today's exclusion under the Federal RCRA

delisting program, only States subject to Federal RCRA delisting

provisions would be affected. This would exclude two categories of

States: States having a dual system that includes Federal RCRA

requirements and their own requirements, and States who have received

authorization from EPA to make their own delisting decisions.

Here are the details: We allow states to impose their own non-RCRA

regulatory requirements that are more stringent than EPA's, under

section 3009 of RCRA. These more stringent requirements may include a

provision that prohibits a Federally issued exclusion from taking

effect in the State. Because a dual system (that is, both Federal

(RCRA) and State (non-RCRA) programs) may regulate a petitioner's

waste, we urge petitioners to contact the State regulatory authority to

establish the status of their wastes under the State law.

The EPA has also authorized some States (for example, Louisiana,

Georgia, Illinois) to administer a RCRA delisting program in place of

the Federal program, that is, to make State delisting decisions.

Therefore, this exclusion does not apply in those authorized States. If

Rhodia transports the petitioned waste to or manages the waste in any

State with delisting authorization, Rhodia must obtain delisting

authorization from that State before they can manage the waste as

nonhazardous in the State.

II. Background

A. What is the History of the Delisting Program?

The EPA published an amended list of hazardous wastes from

nonspecific and specific sources on January 16, 1981, as part of its

final and interim final regulations implementing Section 3001 of RCRA.

The EPA has amended this list several times and published it in

Secs. 261.31 and 261.32.

We list these wastes as hazardous because: (1) They typically and

frequently exhibit one or more of the characteristics of hazardous

wastes identified in Subpart C of Part 261 (that is, ignitability,

corrosivity, reactivity, and toxicity) or (2) they meet the criteria

for listing contained in Secs. 261.11 (a)(2) or (a)(3).

Individual waste streams may vary, however, depending on raw

materials, industrial processes, and other factors. Thus, while a waste

described in these regulations generally is hazardous, a specific waste

from an individual facility meeting the listing description may not be

hazardous.

For this reason, Secs. 260.20 and 260.22 provide an exclusion

procedure, called delisting, which allows persons to prove that EPA

should not regulate a specific waste from a particular generating

facility as a hazardous waste.

B. What Is a Delisting Petition, and What Does It Require of a

Petitioner?

A delisting petition is a request from a facility to EPA or an

authorized State to exclude wastes from the list of hazardous wastes.

The facility petitions the Agency because they do not consider the

wastes hazardous under RCRA regulations.

In a delisting petition, the petitioner must show that wastes

generated at a particular facility do not meet any of the criteria for

the listed wastes. The criteria for which EPA lists a waste are in Part

261 and in the background documents for the listed wastes.

In addition, under Sec. 260.22, a petitioner must prove that the

waste does not exhibit any of the hazardous waste characteristics (that

is, ignitability, reactivity, corrosivity, and toxicity) and present

sufficient information for EPA to decide whether factors other than

those for which the waste was listed warrant retaining it as a

hazardous waste. (See Part 261 and the background documents for the

listed wastes.)

Generators remain obligated under RCRA to confirm whether their

waste remains nonhazardous based on the hazardous waste characteristics

even if EPA has ``delisted'' the wastes.

C. What Factors Must EPA Consider in Deciding Whether To Grant a

Delisting Petition?

Besides considering the criteria in Sec. 260.22(a), in 42 U.S.C.

6921(f), and in the background documents for the listed wastes, EPA

must consider any factors (including additional constituents) other

than those for which we listed the waste if a reasonable basis exists

that these additional factors could cause the waste to be hazardous.

(See 3010(b) of the Solid Waste Disposal Act.)

The EPA must also consider as hazardous wastes mixtures containing

listed hazardous wastes and wastes derived from treating, storing, or

disposing of listed hazardous waste. See Secs. 261.3(a)(2) (iii and iv)

and (c)(2)(i), called the ``mixture'' and ``derived-from'' rules,

respectively. These wastes are also eligible for exclusion and remain

hazardous wastes until excluded.

The ``mixture'' and ``derived-from'' rules are now final, after

having been vacated, remanded, and reinstated. On December 6, 1991, the

U.S. Court of Appeals for the District of Columbia vacated the

``mixture/derived from'' rules and remanded them to EPA on procedural

grounds. See Shell Oil Co. v. EPA., 950 F.2d 741 (D.C. Cir. 1991). On

March 3, 1992, EPA reinstated the mixture and derived-from rules, and

solicited comments on other ways to regulate waste mixtures and

residues See (57 FR 7628). These rules became final on October 30, 1992

See (57 FR 49278). Consult these references for more information about

mixtures derived from wastes.

II. EPA's Evaluation of the Waste Data

A. What Waste Did Rhodia Petition EPA To Delist?

On November 4, 1997, Rhodia petitioned the EPA to exclude from the

lists of hazardous waste contained in Secs. 261.31 and 261.32, a waste

by-product (Filter-Cake Sludge) which falls under the classification of

listed waste because of the ``derived from'' rule in RCRA 40 CFR

260.3(c)(2)(i). Specifically, in its petition, Rhodia, Incorporated,

located in Houston, Texas, requested that EPA grant an exclusion for

1,200 cubic yards per year of filter-cake sludge resulting from its

hazardous waste treatment process. The resulting waste is listed, in

accordance with Sec. 261.3(c)(2)(i) (i.e., the ``derived from'' rule).

B. Who Is Rhodia, and What Process Does It Use?

Rhodia owns and operates a 46-acre facility which is primarily

involved in the manufacture of sulfuric acid. Rhodia has been in

operation since 1917, primarily producing various strengths and grades

of sulfuric acid, sulfur dioxide, oleum, and sulfur trioxide. Rhodia

generates sulfuric acid using a spray burning SARU. The recycling

process requires the use of an industrial furnace. The furnace utilizes

natural gas as the primary fuel. However, Rhodia also treats high and

low British Thermal Unit (BTU) pumpable liquid hazardous waste in the

furnace. Rhodia accepts hazardous waste from off-site generators for

incineration in the sulfuric acid regeneration furnace. A weak acid

blowdown stream generated from the wet gas scrubber, cooler, and

electrostatic precipitator is treated at the AWT system. The petitioned

waste is dewatered filter-cake sludge resulting from the AWT system.

The waste by-product (filter-cake sludge) currently falls under the

classification of listed waste according to RCRA 40 CFR 261.3(c)(2)(i)

because of the ``derived from'' rule. The waste codes of the

constituents of concern are EPA Hazardous Waste Nos. D001-D043, F001-

F012, F019, F024, F025, F032, F034, F037-F039, K002-004, K006-K011,

K013-K052, K060-K062, K064-K066, K069, K071, K073, K083-K088, K090-

K091, K093-K118, K123-K126, K131-K133, K136, K141-K145, K147-K151,

K156-K161, P001-P024, P026-P031, P033-P034, P036-P051, P054, P056-P060,

P062-P078, P081-P082, P084-P085, P087-P089, P092-P116, P118-P123, P127-

P128, P185, P188-P192, P194, P196-P199, P201-P205, U001-U012, U014-

U039, U041-U053, U055-U064, U066-U099, U101-U103, U105-U138, U140-U174,

U176-U194, U196-U197, U200-U211, U213-U223, U225-U228, U234-U240, U243-

U244, U246-U249, U271, U277-U280, U328, U353, U359, U364-U367, U372-

U373, U375-U379, U381-U396, U400-U404, U407, U409-U411.

C. How Did Rhodia Sample and Analyze the Waste Data in This Petition?

Rhodia analyzed the samples for the complete list of constituents

included in 40 CFR Part 264, Appendix IX and the additional parameters

for waste common to the petrochemical, oil and gas industries. The

analyses was performed using EPA-approved methods. The analytical

parameters and methods are provided in Table I.

Table I.--Analytical Parameters and Methods

------------------------------------------------------------------------

Parameter Matrix Method

------------------------------------------------------------------------

GC/MS BNA, App IX List........ Solid............ SW846 Method 8270.

GC/MS VOA, App IX List........ Solid............ SW846 Method 8240.

Metals--App IX List........... Solid............ SW846 Methods 6010/

7000 Series.

Herbicides--App IX List....... Solid............ SW846 Method 8150.

Pesticide/PCB, App IX List.... Solid............ SW846 Method 8080.

Organophosporus Pesticides, Solid............ SW846 Method 8140.

App IX List.

Sulfide....................... Solid............ EPA 376.1.

Cyanide, Total................ Solid............ SW846, Method 9010.

Dioxin/Furan--App IX List..... Solid............ SW846 Method 8280.

TCLP--40 CFR 261.24 List, and Solid............ SW846 Method 1311.

Nickel.

Neutral Leach Cyanide......... Solid............ SW846 Method 1311

(Modified).

Oil & Grease.................. Solid............ EPA 413.1.

Reactive Cyanide.............. Solid............ SW 846 Chapter

7.3.3.2.

Reactive Sulfide.............. Solid............ SW846 Chapter

7.3.4.2.

Flash Point Closed Cup........ Solid............ SW846 Method 1010.

pH............................ Solid............ SW846 Method 9045.

------------------------------------------------------------------------

Note: Rhodia performed TCLP analyses for specific constituents detected

in the total analyses for a given sample.

D. What Were the Results of Rhodia's Analysis?

The EPA believes that the descriptions of the Rhodia hazardous

waste process and analytical characterization, in conjunction with the

proposed verification testing requirements (as discussed later in this

notice), provide a reasonable basis to grant Rhodia's petition for an

exclusion of the filter-cake sludge. The EPA believes the data

submitted in support of the petition show Rhodia's process can render

the filter-cake sludge non-hazardous. The EPA has reviewed the sampling

procedures used by Rhodia and has determined they satisfy EPA criteria

for collecting representative samples of the variations in constituent

concentrations in the filter-cake sludge. The data submitted in support

of the petition show that constituents in Rhodia's waste are presently

below health-based levels used in the delisting decision-making. The

EPA believes that Rhodia has successfully demonstrated that the filter-

cake sludge is non-hazardous.

E. How Did EPA Evaluate the Risk of Delisting the Waste?

For this delisting determination, EPA used such information

gathered to identify plausible exposure routes (i.e., ground water,

surface water, air) for hazardous constituents present in the

petitioned waste. The EPA determined that disposal in a Subtitle D

landfill/surface impoundment is the most reasonable, worst-case

disposal scenario for Rhodia's petitioned waste, and that the major

exposure route of concern would be ingestion of contaminated ground

water. EPA applied a particular fate and transport model, EPA Composite

Model for Landfills (EPACML), to predict the maximum allowable

concentrations of hazardous constituents that may release from the

petitioned waste after disposal and determined the potential impact of

the disposal of Rhodia's petitioned waste on human health and the

environment. Specifically, EPA used the maximum estimated waste volumes

and the maximum reported extract concentrations as inputs to estimate

the constituent concentrations in the ground water at a hypothetical

receptor well downgradient from the disposal site. The calculated

receptor well concentrations (referred to as compliance-point

concentrations) were then compared directly to the health-based levels

at an assumed risk of 10-6 used in delisting decision-making

for the hazardous constituents of concern.

The EPA believes that this fate and transport model represents a

reasonable worst-case scenario for disposal of the petitioned waste in

a landfill/surface impoundment, and that a reasonable worst-case

scenario is appropriate when evaluating whether a waste should be

relieved of the protective management constraints of RCRA Subtitle C.

The use of some reasonable worst-case scenario resulted in conservative

values for the compliance-point concentrations and ensured that the

waste, once removed from hazardous waste regulation, may not pose a

significant threat to human health or the environment. In most cases,

because a delisted waste is no longer subject to hazardous waste

control, EPA is generally unable to predict, and does not presently

control, how a petitioner will manage a waste after delisting.

Therefore, EPA currently believes that it is inappropriate to consider

extensive site-specific factors when applying the fate and transport

model.

The EPA also considers the applicability of ground water monitoring

data during the evaluation of delisting petitions. In this case, EPA

determined that it would be unnecessary to request ground water

monitoring data. Rhodia currently disposes of its waste in an off-site

RCRA landfill. This landfill did not begin accepting this petitioned

waste generated by the Rhodia facility until 1991. This petitioned

waste comprises a small fraction of the total waste managed in the

unit. Therefore, EPA believes that any ground water monitoring data

from the landfill would not be meaningful for an evaluation of the

specific effect of this petitioned waste on ground water.

From the evaluation of Rhodia's delisting petition, EPA developed a

list of constituents for the verification testing conditions. Proposed

maximum allowable leachable concentrations for these constituents were

derived by back-calculating from the delisting health-based levels

through the proposed fate and transport model for a landfill management

scenario. These concentrations (i.e., ``delisting levels'') are part of

the proposed verification testing conditions of the exclusion.

Similar to other facilities seeking exclusions, Rhodia's exclusion

(if granted) would be contingent upon the facility conducting

analytical testing of representative samples of the petitioned waste at

its Houston facility. This testing would be necessary to verify that

the treatment system is operating as demonstrated in the petition

submitted on November 4, 1997. Specifically, the verification testing

requirements, demonstrate that the processing facility will generate

nonhazardous waste (i.e., waste that meet EPA's verification testing

conditions). The EPA believes

that the descriptions of the Rhodia, Inc. hazardous waste process and

analytical characterization, in conjunction with the proposed

verification testing requirements (as discussed later in this notice)

provide a reasonable basis to conclude that the likelihood of migration

of hazardous constituents from the petitioned waste will be

substantially reduced so that short-term and long-term threats to human

health and the environment are minimized. Thus, EPA should grant

Rhodia's petition for a conditional exclusion of the filter-cake

sludge.

The EPA Region 6 Delisting Program guidance document states that

the appropriate fate and effect model will be used to determine the

effect the petitioned waste could have on human health if it is not

managed as a hazardous waste. Specifically, the model considers the

maximum estimated waste volume and the maximum reported leachate

concentrations as inputs to estimate the constituent concentrations in

the ground water at a hypothetical receptor well downgradient from the

disposal site. The calculated receptor well concentrations (referred to

as compliance-point concentrations) are then compared directly to the

health-based levels used in delisting decision-making for hazardous

constituents of concern. EPA Region 6 has selected the EPA Composite

Model for Landfills (EPACML, Federal Register Vol. 56, No. 138, July

18, 1991, Page 32993) as the appropriate model for the delisting

program. This subsection presents an evaluation of the potential for

ground water contamination for the petitioned waste using the EPACML

model.

The EPA considered the appropriateness of alternative waste

management scenarios for Rhodia's filter-cake sludge. The EPA decided,

based on the information provided in the petition, that disposal of the

filter-cake in a municipal solid waste landfill is the most reasonable,

worst-case scenario for the filter-cake sludge. The disposal of the

filter-cake sludge in a surface impoundment would be the most

reasonable worst-case scenario. Under a landfill/surface impoundment

disposal scenario, the major exposure route of concern for any

hazardous constituents would be ingestion of contaminated ground water.

The EPA, therefore, evaluated Rhodia's petitioned waste using the

modified EPA Composite Model for Landfills/Surface Impoundments

(EPACML) which predicts the potential for ground water contamination

from waste landfilled/placed in a surface impoundment. See 56 FR 32993

(July 18, 1991), 56 FR 67197 (December 30, 1991) and the RCRA public

docket for these notices for a detailed description of the EPACML

model, the disposal assumptions, and the modifications made for

delisting. This model, which includes both unsaturated and saturated

zone transport modules, predicts reasonable worse-case contaminant

levels in ground water at a compliance point (i.e., a receptor well

serving as a drinking-water supply). Specifically, the model estimated

the dilution/attenuation factor (DAF) resulting from subsurface

processes such as three-dimensional dispersion and dilution from ground

water recharge for a specific volume of waste.

For the evaluation of Rhodia's petitioned waste, EPA used the

EPACML to evaluate the mobility of the hazardous constituents detected

in the extract of samples of Rhodia's filter-cake sludge. Total

analysis was also utilized for the filter-cake sludge. Typically, EPA

uses the maximum annual waste volume to derive a petition-specific DAF.

The maximum annual waste volume for Rhodia is 1,200 cubic yards per

year. The DAFs are currently calculated assuming an ongoing process

generates waste for 20 years.

Analytical data for the filter-cake sludge samples were used in the

model. The data summaries for detected constituents are presented in

Tables II, III, IV, and V.

The EPA's evaluation of the Filter-cake Sludge is based on the

maximum reported Total and TCLP concentrations (See Table III).

Consequently the compliance point concentrations are below current

health based levels and Land Disposal Restrictions for Non-Wastewater

(See Table V).

Based on the EPACML, the petitioned waste should be delisted

because no constituents of concern exceed the delisting concentrations.

Table II.--Acetone and Chloroform Data Summary \1\

------------------------------------------------------------------------

Analytical parameter (VOCs)

Filter-cake samples (mg/kg) ---------------------------------------

Acetone Chloroform

------------------------------------------------------------------------

Appendix IX Reporting Limit \2\. 0.010 0.05

FC970512-01..................... 0.60 0.10

FC970512-01RE \3\............... 0.26 0.02

FC970513-02..................... 0.30 0.10

FC970513-02RE \3\............... 0.28 0.04

FC970514-03..................... 0.25 0.056

FC970514-03RE \3\............... 0.16 0.023

FC970515-04..................... \4\ ND ND

FC970515-04RE \3\............... \5\ NA NA

FC970517-05..................... 0.043 ND

FC970517-05RE \3\............... NA NA

FC970520-06..................... 0.050 ND

FC970520-06RE \3\............... NA NA

FC970521-07..................... 0.049 ND

FC970522-08..................... 0.058 ND

FC970522-08RE \3\............... 0.17 ND

FC970522-08..................... ND ND

FC970522-08RE \3\............... 0.13 ND

------------------------------------------------------------------------

\1\ This table only summarizes the analytical results for the volatile

organic compounds that were detected by the laboratory against the

Appendix IX reporting limits.

\2\ The Appendix IX reporting limits for acetone are chloroform are

referenced from 40 CFR 264, Appendix IX.

\3\ RE--Replicate samples.

\4\ ND--Not detected.

\5\ NA--Not analyzed.

Table III.--Maximum Total and TCLP Constituent Concentrations Filter-

Cake Sludge \1\

------------------------------------------------------------------------

TCLP Leachate

Constituent Total constituent Concentration (mg/

analyses (mg/kg) l)

------------------------------------------------------------------------

Arsenic......................... 830.00 ND

Barium.......................... 193.00 ND

Cadmium......................... 3.50 ND

Chromium........................ 852.00 ND

Cobalt.......................... 81.20 4.06

Copper.......................... 1500.00 75.00

Mercury......................... 81.60 ND

Lead............................ 861.00 ND

Nickel.......................... 1210.00 3.00

Selenium........................ 36.30 ND

Silver.......................... 94.90 ND

Vanadium........................ 92.10 4.61

Zinc............................ 3130.00 156.50

------------------------------------------------------------------------

\1\ These levels represent the highest concentration of each constituent

found in any one sample. These levels do not necessarily represent the

specific levels found in one sample.

Table IV.--Oil and Grease Results Summary \1\

------------------------------------------------------------------------

Analytical Parameter

Filter-cake samples (mg/kg) (specific) Oil and

grease

------------------------------------------------------------------------

Laboratory Reporting Limit \2\................. 3,520

FC970520-06.................................... 3,660

------------------------------------------------------------------------

\1\ This table only summarizes the results for those special parameters

that were detected above laboratory detection limits.

\2\ Appendix IX reporting limits are not available for oil and grease.

Therefore, the laboratory's detection limits were used for the

comparison.

Table V.--EPACML: Comparison of Filter-Cake Sludge Calculated Compliance-Point Concentrations Against Regulatory

Standards

----------------------------------------------------------------------------------------------------------------

Compliance point

Constituents concentrations Levels of concern LDR non-wastewater

(mg/l) 1 (mg/l) 2 (mg/l)

----------------------------------------------------------------------------------------------------------------

Arsenic............................................. 0.001 0.05 5.00

Barium.............................................. 0.006 2.00 21.00

Cadmium............................................. 0.001 0.005 0.11

Chromium............................................ 0.001 0.1 0.60

Mercury............................................. 3 ND 0.002 0.025

Nickel.............................................. 0.033 0.1 11.00

Lead................................................ 0.001 0.015 0.75

Selenium............................................ 3 ND 0.05 5.70

Silver.............................................. 0.001 0.2 0.14

----------------------------------------------------------------------------------------------------------------

1 Using the maximum TCLP leachate concentration, based on a DAF of 90 for a maximum annual volume of 1,200 cubic

yards.

2 See ``Docket Report on Health-Based Levels and Solubilities Used in the Evaluation of Delisting Petitions,''

May 1996 located in the RCRA Public Docket for today's notice.

3 ND = Not Detected.

F. What Did EPA Conclude About Rhodia's Analysis?

The EPA concluded, after reviewing Rhodia's processes that no other

hazardous constituents of concern, other than those for which tested,

are likely to be present or formed as reaction products or by products

in Rhodia's waste. In addition, on the basis of explanations and

analytical data provided by Rhodia, pursuant to Sec. 260.22, the EPA

concludes that the petitioned waste does not exhibit any of the

characteristics of ignitability, corrosivity, or reactivity. See

Secs. 261.21, 261.22, and 261.23, respectively.

G. What Other Factors Did EPA Consider?

During the evaluation of Rhodia's petition, EPA also considered the

potential impact of the petitioned waste via non-ground water routes

(i.e., air emission and surface runoff). With regard to airborne

dispersion in particular, EPA believes that exposure to airborne

contaminants from Rhodia's petitioned waste is unlikely. Therefore, no

appreciable air releases are likely from Rhodia's waste under any

likely disposal conditions. The EPA evaluated the potential hazards

resulting from the unlikely scenario of airborne exposure to hazardous

constituents released from Rhodia's waste in an open landfill. The

results of this worst-case analysis indicated that there is no

substantial present or potential hazard to human health and the

environment from airborne exposure to constituents from Rhodia's

Filter-cake sludge. A description of EPA's assessment of the potential

impact of Rhodia's waste, regarding airborne dispersion of waste

contaminants, is presented in the RCRA public docket for today's

proposed rule.

The EPA also considered the potential impact of the petitioned

waste via a surface water route. The EPA believes that containment

structures at municipal solid waste landfills can effectively control

surface water runoff,

as the Subtitle D regulations (See 56 FR 50978, October 9, 1991)

prohibit pollutant discharges into surface waters. Furthermore, the

concentrations of any hazardous constituents dissolved in the runoff

will tend to be lower than the levels in the TCLP leachate analyses

reported in today's notice due to the aggressive acidic medium used for

extraction in the TCLP. The EPA believes that, in general, leachate

derived from the waste is unlikely to directly enter a surface water

body without first traveling through the saturated subsurface where

dilution and attenuation of hazardous constituents will also occur.

Leachable concentrations provide a direct measure of solubility of a

toxic constituent in water and are indicative of the fraction of the

constituent that may be mobilized in surface water as well as ground

water.

Based on the reasons discussed above, EPA believes that the

contamination of surface water through runoff from the waste disposal

area is very unlikely. Nevertheless, EPA evaluated the potential

impacts on surface water if Rhodia's waste were released from a

municipal solid waste landfill through runoff and erosion. See, the

RCRA public docket for today's proposed rule. The estimated levels of

the hazardous constituents of concern in surface water would be well

below health-based levels for human health, as well as below EPA

Chronic Water Quality Criteria for aquatic organisms (USEPA, OWRS,

1987). The EPA, therefore, concluded that Rhodia's filter-cake Sludge

is not a present or potential substantial hazard to human health and

the environment via the surface water exposure pathway.

H. What is EPA's Final Evaluation of This Delisting Petition?

The descriptions of Rhodia's hazardous waste process and analytical

characterization, with the proposed verification testing requirements

(as discussed later in this notice), provide a reasonable basis for EPA

to grant the exclusion. The data submitted in support of the petition

show that constituents in the waste are below the applicable treatment

standards (see Table V). We conclude Rhodia's process will

substantially reduce the likelihood of migration of hazardous

constituents from the petitioned waste. Their process also minimizes

short-term and long-term threats from the petitioned waste to human

health and the environment.

Thus, EPA believes we should grant Rhodia an exclusion for the

filter-cake sludge. The EPA believes the data submitted in support of

the petition show Rhodia's process can render the filter-cake sludge

nonhazardous.

We have reviewed the sampling procedures used by Rhodia and have

determined they satisfy EPA criteria for collecting representative

samples of variable constituent concentrations in the filter-cake

sludge. The data submitted in support of the petition show that

constituents in Rhodia's waste are presently below the compliance point

concentrations used in the delisting decision-making and would not pose

a substantial hazard to the environment. The EPA believes that Rhodia

has successfully demonstrated that the filter-cake sludge are

nonhazardous.

The EPA therefore, proposes to grant a conditional exclusion to the

Rhodia Corporation, in Houston, Texas, for the filter-cake sludge

described in its petition. The EPA's decision to conditionally exclude

this waste is based on descriptions of the treatment activities

associated with the petitioned waste and characterization of the

filter-cake sludge.

If we finalize the proposed rule, the Agency will no longer

regulate the petitioned waste under parts 262 through 268 and the

permitting standards of part 270.

IV. Next Steps

A. With What Conditions Must the Petitioner Comply?

The petitioner, Rhodia, must comply with the requirements in 40 CFR

part 261, Appendix IX, Tables 1 and 2. The text below gives the

rationale and details of those requirements.

(1) Delisting Levels

This paragraph provides the levels of constituents that Rhodia must

test the leachate from the filter-cake sludge, below which these wastes

would be considered nonhazardous.

The EPA selected the set of inorganic and organic constituents

specified in Paragraph (1) because of information in the petition. We

compiled the list from the composition of the waste, descriptions of

Rhodia's treatment process, previous test data provided for the waste,

and the respective health-based levels used in delisting decision-

making.

We established the proposed delisting levels by calculating the

Maximum Allowable Leachate (MALs) concentrations from the Health-based

levels (HBL) for the constituents of concern and the EPACML chemical-

specific DAF of 90, that is, MAL = HBL x DAF. We also limited the

MALs so the concentrations would not exceed non waste water

concentrations in the Land Disposal Restriction treatment standards in

40 CFR part 268. These delisting levels correspond to the allowable

levels measured in the TCLP extract of the waste.

(2) Waste Holding and Handling

The purpose of this paragraph is to ensure that any filter-cake

sludge which might contain hazardous levels of inorganic and organic

constituents are managed and disposed of in accordance with Subtitle C

of RCRA. Holding the filter-cake sludge until characterization is

complete will protect against improper handling of hazardous material.

If EPA determines that the data collected under this condition do not

support the data provided for the petition the exclusion will not cover

the petitioned waste.

(3) Verification Testing Requirements

(A) Initial Verification Testing. If the EPA determines that the

data from the initial verification period shows the treatment process

is effective, Rhodia may request that EPA allow it to conduct

verification testing quarterly. If EPA approves this request in

writing, then Rhodia may begin verification testing quarterly.

The EPA believes that an initial period of 60 days is adequate for

a facility to collect sufficient data to verify that the data provided

for the filter-cake sludge in the 1998 petition, is representative.

We are requiring Rhodia to conduct a multiple pH analysis because

in our experience more leaching can occur from disposed waste when the

pH of the waste is extremely acidic or basic. The multiple pH test is

similar to the TCLP, but the test uses different pH extraction fluids.

Rhodia should design the analytical test to show that the petitioned

waste when disposed of in an acidic and basic landfill environment

would not leach concentrations above the levels of regulatory concern.

The second condition should reflect how the petitioned waste will

behave when it is disposed in a landfill environment similar to the pH

of the waste. The EPA believes that evaluating the leachate generated

from using extraction fluids over a range of pH's can simulate general

disposal conditions and provide added assurance that the waste will

remain nonhazardous when disposal conditions change. The petitioner

must perform these analyses to confirm that the leachate concentrations

do not exceed the concentrations in Paragraph 1 over a wide pH range.

While the waste's pH does vary, the Agency believes that under the

various pH

conditions the waste will remain stable, and thus will proceed with the

promulgation of the proposed decision.

If we determine that the data collected under this Paragraph do not

support the data provided for the petition, the exclusion will not

cover the generated wastes. If the data from the initial verification

period demonstrate that the treatment process is effective, Rhodia may

request quarterly testing. EPA will notify Rhodia, in writing, if and

when they may replace the testing conditions in paragraph (3)(A)(i)

with the testing conditions in (3)(B).

(B) Subsequent Verification Testing. The EPA believes that the

concentrations of the constituents of concern in the filter-cake sludge

may vary over time. As a result, to ensure that Rhodia's treatment

process can effectively handle any variation in constituent

concentrations in the waste, we are proposing a subsequent verification

testing condition.

The proposed subsequent testing would verify that Rhodia operates

the AWT as it did during the initial verification testing. It would

also verify that the filter-cake sludge does not exhibit unacceptable

levels of toxic constituents. The EPA is proposing to require Rhodia to

analyze representative samples of the filter-cake sludge quarterly

during the first year of waste generation. Rhodia would begin annual

sampling on the anniversary date of the final exclusion. They must also

use the multiple pH extraction procedure for samples collected during

the annual sampling.

(4) Changes in Operating Conditions

Paragraph (4) would allow Rhodia the flexibility of modifying its

processes (for example, changes in equipment or change in operating

conditions) to improve its treatment process. However, Rhodia must

prove the effectiveness of the modified process and request approval

from the EPA. Rhodia must manage wastes generated during the new

process demonstration as hazardous waste until they have obtained

written approval and Paragraph (3) is satisfied.

(5) Data Submittals

To provide appropriate documentation that Rhodia's facility is

properly treating the waste, Rhodia must compile, summarize, and keep

delisting records on-site for a minimum of five years. They should keep

all analytical data obtained through Paragraph (3) including quality

control information for five years. Paragraph (5) requires that Rhodia

furnish these data upon request for inspection by any employee or

representative of EPA or the State of Texas.

If the proposed exclusion is made final, it will apply only to

1,200 cubic yards of filter-cake sludge, generated annually at the

Rhodia facility after successful verification testing.

We would require Rhodia to file a new delisting petition under any

of the following circumstances:

(a) If they significantly alter the thermal desorption treatment

system except as described in Paragraph (4).

(b) If they use any new manufacturing or production process(es), or

significantly change from the current process(es) described in their

petition; or

(c) If they make any changes that could affect the composition or

type of waste generated.

Rhodia must manage waste volumes greater than 1,200 cubic yards of

filter-cake sludge as hazardous until we grant a new exclusion.

When this exclusion becomes final, Rhodia's management of the

wastes covered by this petition would be relieved from Subtitle C

jurisdiction. Rhodia must either treat, store, or dispose of the waste

in an on-site facility that has a State permit, license, or is

registered to manage municipal or industrial solid waste. If not,

Rhodia must ensure that it delivers the waste to an off-site storage,

treatment, or disposal facility that has a State permit, license, or is

registered to manage municipal or industrial solid waste.

(6) Reopener Language

The purpose of Paragraph 6 is to require Rhodia to disclose new or

different information related to a condition at the facility or

disposal of the waste if it is pertinent to the delisting. Rhodia must

also use this procedure, if the waste sample in the annual testing

fails to meet the levels found in Paragraph 1. This provision will

allow EPA to reevaluate the exclusion if a source provides new or

additional information to the Agency. The EPA will evaluate the

information on which we based the decision to see if it is still

correct, or if circumstances have changed so that the information is no

longer correct or would cause EPA to deny the petition if presented.

This provision expressly requires Rhodia to report differing site

conditions or assumptions used in the petition in addition to failure

to meet the annual testing conditions within 10 days of discovery. If

EPA discovers such information itself or from a third party, it can act

on it as appropriate. The language being proposed is similar to those

provisions found in RCRA regulations governing no-migration petitions

at Sec. 268.6.

The EPA believes that we have the authority under RCRA and the

Administrative Procedures Act, 5 U.S.C. Sec. 551 (1978) et seq., to

reopen a delisting decision. We may reopen a delisting decision when we

receive new information that calls into question the assumptions

underlying the delisting.

The Agency believes a clear statement of its authority in

delistings is merited in light of Agency experience. See Reynolds

Metals Company at 62 FR 37694 and 62 FR 63458 where the delisted waste

leached at greater concentrations in the environment than the

concentrations predicted when conducting the TCLP, thus leading the

Agency to repeal the delisting. If an immediate threat to human health

and the environment presents itself, EPA will continue to address these

situations case by case. Where necessary, EPA will make a good cause

finding to justify emergency rulemaking. See APA 553 (b).

(7) Notification Requirements

In order to adequately track wastes that have been delisted, EPA is

requiring that Rhodia provide a one-time notification to any State

regulatory agency through which or to which the delisted waste is being

carried. Rhodia must provide this notification within 60 days of

commencing this activity.

B. What Happens if Rhodia Violates the Terms and Conditions?

If Rhodia violates the terms and conditions established in the

exclusion, the Agency will start procedures to withdraw the exclusion.

Where there is an immediate threat to human health and the environment,

the Agency will continue to evaluate these events on a case-by-case

basis. The Agency expects Rhodia to conduct the appropriate waste

analysis and comply with the criteria explained above in Paragraphs

3,4,5 and 6 of the exclusion.

V. Public Comments

A. How can I as an Interested Party Submit Comments?

The EPA is requesting public comments on this proposed decision.

Please send three copies of your comments. Send two copies to William

Gallagher, Delisting Section, Multimedia Planning and Permitting

Division (6PD-O), Environmental Protection Agency (EPA), 1445 Ross

Avenue, Dallas, Texas 75202. Send a third copy to the Texas Natural

Resource Conservation Commission, 12100 Park 35 Circle, Austin, Texas

78753. Identify your comments at the top with this regulatory docket

number: ``F-99-TXDEL-RHODIA.''

You should submit requests for a hearing to Robert Hannesschlager,

Acting Director, Multimedia Planning and Permitting Division (6PD),

Environmental Protection Agency, 1445 Ross Avenue, Dallas, Texas 75202.

B. How May I Review the Docket or Obtain Copies of the Proposed

Exclusion?

You may review the RCRA regulatory docket for this proposed rule at

the Environmental Protection Agency Region 6, 1445 Ross Avenue, Dallas,

Texas 75202. It is available for viewing in the EPA Freedom of

Information Act Review Room from 9:00 a.m. to 4 p.m., Monday through

Friday, excluding Federal holidays. Call (214) 665-6444 for

appointments. The public may copy material from any regulatory docket

at no cost for the first 100 pages, and at fifteen cents per page for

additional copies.

VI. Regulatory Impact

Under Executive Order 12866, EPA must conduct an ``assessment of

the potential costs and benefits'' for all ``significant'' regulatory

actions.

The proposal to grant an exclusion is not significant, since its

effect, if promulgated, would be to reduce the overall costs and

economic impact of EPA's hazardous waste management regulations. This

reduction would be achieved by excluding waste generated at a specific

facility from EPA's lists of hazardous wastes, thus enabling a facility

to manage its waste as nonhazardous.

Because there is no additional impact from today's proposed rule,

this proposal would not be a significant regulation, and no cost/

benefit assessment is required. The Office of Management and Budget

(OMB) has also exempted this rule from the requirement for OMB review

under section (6) of Executive Order 12866.

VII. Regulatory Flexibility Act

Under the Regulatory Flexibility Act, 5 U.S.C. 601-612, whenever an

agency is required to publish a general notice of rulemaking for any

proposed or final rule, it must prepare and make available for public

comment a regulatory flexibility analysis which describes the impact of

the rule on small entities (that is, small businesses, small

organizations, and small governmental jurisdictions). No regulatory

flexibility analysis is required, however, if the Administrator or

delegated representative certifies that the rule will not have any

impact on a small entities.

This rule, if promulgated, will not have an adverse economic impact

on small entities since its effect would be to reduce the overall costs

of EPA's hazardous waste regulations and would be limited to one

facility. Accordingly, I hereby certify that this proposed regulation,

if promulgated, will not have a significant economic impact on a

substantial number of small entities. This regulation, therefore, does

not require a regulatory flexibility analysis.

VIII. Paperwork Reduction Act

Information collection and record-keeping requirements associated

with this proposed rule have been approved by the Office of Management

and Budget (OMB) under the provisions of the Paperwork Reduction Act of

1980 (Public Law 96-511, 44 U.S.C. 3501 et seq.) and have been assigned

OMB Control Number 2050-0053.

IX. Unfunded Mandates Reform Act

Under section 202 of the Unfunded Mandates Reform Act of 1995

(UMRA), Public Law 104-4, which was signed into law on March 22, 1995,

EPA generally must prepare a written statement for rules with Federal

mandates that may result in estimated costs to State, local, and tribal

governments in the aggregate, or to the private sector, of $100 million

or more in any one year.

When such a statement is required for EPA rules, under section 205

of the UMRA EPA must identify and consider alternatives, including the

least costly, most cost-effective, or least burdensome alternative that

achieves the objectives of the rule. The EPA must select that

alternative, unless the Administrator explains in the final rule why it

was not selected or it is inconsistent with law.

Before EPA establishes regulatory requirements that may

significantly or uniquely affect small governments, including tribal

governments, it must develop under section 203 of the UMRA a small

government agency plan. The plan must provide for notifying potentially

affected small governments, giving them meaningful and timely input in

the development of EPA regulatory proposals with significant Federal

intergovernmental mandates, and informing, educating, and advising them

on compliance with the regulatory requirements.

The UMRA generally defines a Federal mandate for regulatory

purposes as one that imposes an enforceable duty upon State, local, or

tribal governments or the private sector.

The EPA finds that today's delisting decision is deregulatory in

nature and does not impose any enforceable duty on any State, local, or

tribal governments or the private sector. In addition, the proposed

delisting decision does not establish any regulatory requirements for

small governments and so does not require a small government agency

plan under UMRA section 203.

X. Executive Order 12875

Under Executive Order 12875, EPA may not issue a regulation that is

not required by statute and that creates a mandate upon a state, local,

or tribal government, unless the Federal government provides the funds

necessary to pay the direct compliance costs incurred by those

governments. If the mandate is unfunded, EPA must provide to the Office

of Management and Budget a description of the extent of EPA's prior

consultation with representatives of affected state, local, and tribal

governments, the nature of their concerns, copies of written

communications from the governments, and a statement supporting the

need to issue the regulation. In addition, Executive Order 12875

requires EPA to develop an effective process permitting elected

officials and other representatives of state, local, and tribal

governments ``to provide meaningful and timely input in the development

of regulatory proposals containing significant unfunded mandates.''

Today's rule does not create a mandate on state, local or tribal

governments. The rule does not impose any enforceable duties on these

entities. Accordingly, the requirements of section 1(a) of Executive

Order 12875 do not apply to this rule.

XI. Executive Order 13045

The Executive Order 13045 is entitled ``Protection of Children from

Environmental Health Risks and Safety Risks'' (62 FR 19885, April 23,

1997). This order applies to any rule that EPA determines (1) is

economically significant as defined under Executive Order 12866, and

(2) the environmental health or safety risk addressed by the rule has a

disproportionate effect on children. If the regulatory action meets

both criteria, the Agency must evaluate the environmental health or

safety effects of the planned rule on children, and explain why the

planned regulation is preferable to other potentially effective and

reasonably feasible alternatives considered by the Agency. This

proposed rule is not subject to Executive Order 13045 because this is

not an economically significant

regulatory action as defined by Executive Order 12866.

XII. Executive Order 13084

Because this action does not involve any requirements that affect

Indian Tribes, the requirements of section 3(b) of Executive Order

13084 do not apply.

Under Executive Order 13084, EPA may not issue a regulation that is

not required by statute, that significantly affects or uniquely affects

that communities of Indian tribal governments, and that imposes

substantial direct compliance costs on those communities, unless the

Federal government provides the funds necessary to pay the direct

compliance costs incurred by the tribal governments.

If the mandate is unfunded, EPA must provide to the Office of

Management and Budget, in a separately identified section of the

preamble to the rule, a description of the extent of EPA's prior

consultation with representatives of affected tribal governments, a

summary of the nature of their concerns, and a statement supporting the

need to issue the regulation.

In addition, Executive Order 13084 requires EPA to develop an

effective process permitting elected and other representatives of

Indian tribal governments ``to meaningful and timely input'' in the

development of regulatory policies on matters that significantly or

uniquely affect their communities of Indian tribal governments. This

action does not involve or impose any requirements that affect Indian

Tribes. Accordingly, the requirements of section 3(b) of Executive

Order 13084 do not apply to this rule.

XIII. National Technology Transfer and Advancement Act

Under Section 12(d) of the National Technology Transfer and

Advancement Act, the Agency is directed to use voluntary consensus

standards in its regulatory activities unless to do so would be

inconsistent with applicable law or otherwise impractical. Voluntary

consensus standards are technical standards (e.g., materials

specifications, test methods, sampling procedures, business practices,

etc.) developed or adopted by voluntary consensus standard bodies.

Where available and potentially applicable voluntary consensus

standards are not used by EPA, the Act requires that Agency to provide

Congress, through the OMB, an explanation of the reasons for not using

such standards.

This rule does not establish any new technical standards and thus,

the Agency has no need to consider the use of voluntary consensus

standards in developing this final rule.

List of Subjects in 40 CFR Part 261

Environmental protection, Hazardous waste, Recycling, Reporting and

recordkeeping requirements.

Authority: Sec. 3001(f) RCRA, 42 U.S.C. 6921(f)

Dated: September 29, 1999.

Robert Hannesschlager,

Acting Director, Multimedia Planning and Permitting Division, Region 6

For the reasons set out in the preamble, 40 CFR part 261 is

proposed to be amended as follows:

PART 261--IDENTIFICATION AND LISTING OF HAZARDOUS WASTE

1. The authority citation for part 261 continues to read as

follows:

Authority: 42 U.S.C. 6905, 6912(a), 6921, 6922, and 6938.

2. In Tables 1, 2, and 3 of Appendix IX of part 261 it is proposed

to add the following waste stream in alphabetical order by facility to

read as follows:

Appendix IX to Part 261--Wastes Excluded Under Secs. 260.20 and

260.22

Table 1.--Waste Excluded From Non-Specific Sources

------------------------------------------------------------------------

Facility and address Waste description

------------------------------------------------------------------------

* * * *

* * *

Rhodia, Houston, Texas....... Filter-cake Sludge, (at a maximum

generation of 1,200 cubic yards per

calendar year) generated by Rhodia using

the SARU and AWT treatment process to

treat the filter-cake sludge (EPA

Hazardous Waste Nos. D001-D43, F001-

F012, F019, F024, F025, F032, F034, F037-

F039) generated at Rhodia.

Rhodia must implement a testing program

that meets the following conditions for

the exclusion to be valid:

(1) Delisting Levels:

All concentrations for the following

constituents must not exceed the

following levels (mg/l). For the filter-

cake constituents must be measured in

the waste leachate by the method

specified in 40 CFR Part 261.24.

(A) Filter-cake Sludge

(i) Inorganic Constituents: Antimony--

1.15; Arsenic--1.40; Barium--21.00;

Beryllium--1.22; Cadmium--0.11; Cobalt--

189.00; Copper--90.00; Chromium--0.60;

Lead--0.75; Mercury--0.025; Nickel--

9.00; Selenium--4.50; Silver--0.14;

Thallium--0.20; Vanadium--1.60; Zinc--

4.30

(ii) Organic Constituents: Chlorobenzene-

Non Detect; Carbon Tetrachloride-Non

Detect; Acetone--360; Chloroform--0.9

(2) Waste Holding and Handling:

Rhodia must store in accordance with its

RCRA permit, or continue to dispose of

as hazardous waste all Filter-cake

Sludge until the verification testing

described in Condition (3)(A), as

appropriate, is completed and valid

analyses demonstrate that condition (3)

is satisfied. If the levels of

constituents measured in the samples of

the Filter-cake Sludge do not exceed the

levels set forth in Condition (1), then

the waste is nonhazardous and may be

managed and disposed of in accordance

with all applicable solid waste

regulations.

(3) Verification Testing Requirements:

Rhodia must perform sample collection and

analyses, including quality control

procedures, according to SW-846

methodologies. If EPA judges the process

to be effective under the operating

conditions used during the initial

verification testing, Rhodia may replace

the testing required in Condition (3)(A)

with the testing required in Condition

(3)(B). Rhodia must continue to test as

specified in Condition (3)(A) until and

unless notified by EPA in writing that

testing in Condition (3)(A) may be

replaced by Condition (3)(B).

(A) Initial Verification Testing:

(i) At quarterly intervals for one year

after the final exclusion is granted,

Rhodia must collect and analyze

composites of the filter-cake sludge.

TCLP must be run on all waste and

constituents for which total

concentrations have been identified

including constituents listed in

Paragraph 1. Rhodia must conduct a

multiple pH leaching procedure on

samples collected during the quarterly

intervals. Rhodia must perform the TCLP

procedure using distilled water and

three different pH extraction fluids to

simulate disposal under three

conditions. Simulate an acidic landfill

environment, basic landfill environment

and a landfill environment similar to

the pH of the waste. Rhodia must report

the operational and analytical test

data, including quality control

information, obtained during this

initial period no later than 90 days

after the generation of the waste.

(B) Subsequent Verification Testing:

Following termination of the quarterly

testing, Rhodia must continue to test a

representative composite sample for all

constituents listed in Condition (1) on

an annual basis (no later than twelve

months after the final exclusion).

(4) Changes in Operating Conditions:

If Rhodia significantly changes the

process which generate(s) the waste(s)

and which may or could affect the

composition or type waste(s) generated

as established under Condition (1) (by

illustration, but not limitation, change

in equipment or operating conditions of

the treatment process), or its NPDES

permit is changed, revoked or not

reissued, Rhodia must notify the EPA in

writing and may no longer handle the

waste generated from the new process or

no longer discharge as nonhazardous

until the waste meet the delisting

levels set in Condition (1) and it has

received written approval to do so from

EPA.

(5) Data Submittals:

Rhodia must submit the information

described below. If Rhodia fails to

submit the required data within the

specified time or maintain the required

records on-site for the specified time,

EPA, at its discretion, will consider

this sufficient basis to reopen the

exclusion as described in Paragraph 6.

Rhodia must:

(A) Submit the data obtained through

Paragraph 3 to Mr. William Gallagher,

Chief, Region 6 Delisting Program, EPA,

1445 Ross Avenue, Dallas, Texas 75202-

2733, Mail Code, (6PD-O) within the time

specified.

(B) Compile records of operating

conditions and analytical data from

Paragraph (3), summarized, and

maintained on-site for a minimum of five

years.

(C) Furnish these records and data when

EPA or the State of Texas request them

for inspection.

(D) Send along with all data a signed

copy of the following certification

statement, to attest to the truth and

accuracy of the data submitted:

Under civil and criminal penalty of law

for the making or submission of false or

fraudulent statements or representations

(pursuant to the applicable provisions

of the Federal Code, which include, but

may not be limited to, 18 U.S.C. Sec.

1001 and 42 U.S.C. Sec. 6928), I

certify that the information contained

in or accompanying this document is

true, accurate and complete.

As to the (those) identified section(s)

of this document for which I cannot

personally verify its (their) truth and

accuracy, I certify as the company

official having supervisory

responsibility for the persons who,

acting under my direct instructions,

made the verification that this

information is true, accurate and

complete.

If any of this information is determined

by EPA in its sole discretion to be

false, inaccurate or incomplete, and

upon conveyance of this fact to the

company, I recognize and agree that this

exclusion of waste will be void as if it

never had effect or to the extent

directed by EPA and that the company

will be liable for any actions taken in

contravention of the company's RCRA and

CERCLA obligations premised upon the

company's reliance on the void

exclusion.

(6) Reopener Language:

(A) If, anytime after disposal of the

delisted waste, Rhodia possesses or is

otherwise made aware of any

environmental data (including but not

limited to leachate data or groundwater

monitoring data) or any other data

relevant to the delisted waste

indicating that any constituent

identified for the delisting

verification testing is at level higher

than the delisting level allowed by the

Regional Administrator or his delegate

in granting the petition, then the

facility must report the data, in

writing, to the Regional Administrator

or his delegate within 10 days of first

possessing or being made aware of that

data.

(B) If the annual testing of the waste

does not meet the delisting requirements

in Paragraph 1, Rhodia must report the

data, in writing, to the Regional

Administrator or his delegate within 10

days of first possessing or being made

aware of that data.

(C) If Rhodia fails to submit the

information described in paragraphs (5),

(6)(A) or (6)(B) or if any other

information is received from any source,

the Regional Administrator or his

delegate will make a preliminary

determination as to whether the reported

information requires Agency action to

protect human health or the environment.

Further action may include suspending,

or revoking the exclusion, or other

appropriate response necessary to

protect human health and the

environment.

(D) If the Regional Administrator or his

delegate determines that the reported

information does require Agency action,

the Regional Administrator or his

delegate will notify the facility in

writing of the actions the Regional

Administrator or his delegate believes

are necessary to protect human health

and the environment. The notice shall

include a statement of the proposed

action and a statement providing the

facility with an opportunity to present

information as to why the proposed

Agency action is not necessary. The

facility shall have 10 days from the

date of the Regional Administrator or

his delegate's notice to present such

information.

(E) Following the receipt of information

from the facility described in paragraph

(6)(D) or (if no information is

presented under paragraph (6)(D)) the

initial receipt of information described

in paragraphs (5), (6)(A) or (6)(B), the

Regional Administrator or his delegate

will issue a final written determination

describing the Agency actions that are

necessary to protect human health or the

environment. Any required action

described in the Regional Administrator

or his delegate's determination shall

become effective immediately, unless the

Regional Administrator or his delegate

provides otherwise.

(7) Notification Requirements:

Rhodia must do following before

transporting the delisted waste: Failure

to provide this notification will result

in a violation of the delisting petition

and a possible revocation of the

decision.

(A) Provide a one-time written

notification to any State Regulatory

Agency to which or through which they

will transport the delisted waste

described above for disposal, 60 days

before beginning such activities.

(B) Update the one-time written

notification if they ship the delisted

waste into a different disposal

facility.

------------------------------------------------------------------------

Table 2.--Wastes Excluded From Specific Sources

------------------------------------------------------------------------

Facility and address Waste description

------------------------------------------------------------------------

* * * *

* * *

Rhodia, Houston,Texas........ Filter-cake Sludge, (at a maximum

generation of 1,200 cubic yards per

calendar year) generated by Rhodia using

the SARU and AWT treatment process to

treat the filter-cake sludge (EPA

Hazardous Waste Nos. K002-004, K006-

K011, K013-K052, K060-K062, K064-K066,

K069, K071, K073, K083-K088, K090-K091,

K093-K118, K123-K126, K131-K133, K136,

K141-K145, K147-K151, K156-K161)

generated at Rhodia. Rhodia must

implement the testing program described

in Table 1. Waste Excluded From Non-

Specific Sources for the petition to be

valid.

------------------------------------------------------------------------

Table 3.--Wastes Excluded From Commercial Chemical Products, Off

Specification Species, Container Residues, and Soil Residues Thereof

------------------------------------------------------------------------

Facility and address Waste description

------------------------------------------------------------------------

* * * *

* * *

Rhodia, Houston,Texas........ Filter-cake Sludge, (at a maximum

generation of 1,200 cubic yards per

calendar year) generated by Rhodia using

the SARU and AWT treatment process to

treat the filter-cake sludge (EPA

Hazardous Waste Nos. P001-P024, P026-

P031, P033-P034, P036-P051, P054, P056-

P060, P062-P078, P081-P082, P084-P085,

P087-P089, P092-P116, P118-P123, P127-

P128, P185, P188-P192, P194, P196-P199,

P201-P205, U001-U012, U014-U039, U041-

U053, U055-U064, U066-U099, U101-U103,

U105-U138, U140-U174, U176-U194, U196-

U197, U200-U211, U213-U223, U225-U228,

U234-U240, U243-U244, U246-U249, U271,

U277-U280, U328, U353, U359, U364-U367,

U372-U373, U375-U379, U381-U396, U400-

U404, U407, U409-U411) generated at

Rhodia. Rhodia must implement the

testing program described in Table 1.

Waste Excluded From Non-Specific Sources

for the petition to be valid.

* * * *

* * *

------------------------------------------------------------------------

[FR Doc. 99-26663 Filed 10-14-99; 8:45 am]

BILLING CODE 6560-50-P

This is a copy of a public record, reproduced as it was published. It is not legal advice, and it may not be the version a court would rely on. Check the official source before you cite it.

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