ILLINOIS POLLUTION CONTROL BOARD
    March 19, 1998
    IN THE MATTER OF:
    PETITION OF CHEMETCO, INC. FOR
    ADJUSTED STANDARD FROM 35 ILL.
    ADM. CODE 720.131(a) AND (c)
    )
    )
    )
    )
    )
    AS 97-2
    (Adjusted Standard - RCRA)
    GEORGE M. VON STAMWITZ AND RICHARD L. WATERS OF ARMSTRONG,
    TEASDALE, SCHLAFLY, & DAVIS APPEARED ON BEHALF OF PETITIONER;
    CHRISTOPHER P. PERZAN APPEARED ON BEHALF OF THE ILLINOIS
    ENVIRONMENTAL PROTECTION AGENCY; and
    JAMES L. MORGAN APPEARED ON BEHALF OF THE ILLINOIS ATTORNEY
    GENERAL’S OFFICE.
    OPINION AND ORDER OF THE BOARD (by K.M. Hennessey):
    Chemetco, Inc. (Chemetco) owns and operates a secondary metal smelting facility in
    Hartford, Madison County, Illinois. Chemetco uses its furnaces to produce anode copper and
    crude solder from used, metal-bearing materials. This proceeding concerns a material that
    Chemetco refers to as “zinc oxide,” which Chemetco currently stores in a bunker at its
    facility. Chemetco asks that the Board determine that the zinc oxide is not a solid waste when
    Chemetco removes it from the bunker for recycling. Chemetco believes that if the Board does
    not grant it this determination, Chemetco will have to landfill the zinc oxide on-site.
    Chemetco seeks this determination pursuant to 35 Ill. Adm. Code 720.131(a) and (c).
    Chemetco asks that the Board’s non-solid waste determination last for five years and three
    months to allow Chemetco enough time to sell the zinc oxide stored in the bunker. The
    Illinois Environmental Protection Agency (IEPA) opposes Chemetco’s request.
    While the Board certainly encourages recycling, the Board finds that Chemetco has not
    provided sufficient evidence to establish that Section 720.131(a) applies in this case.
    Chemetco also failed to provide all of the information that section requires. In addition, the
    Board finds that Chemetco failed to provide sufficient evidence to demonstrate that Section
    720.131(c) applies, nor has it provided all of the information that section requires. The Board
    therefore must deny Chemetco’s petition for an adjusted standard.

    2
    PROCEDURAL HISTORY
    Overview
    Chemetco filed its petition on August 9, 1996. IEPA filed a response and an amended
    response, to which Chemetco filed replies.
    1
    In its amended response, IEPA recommended that
    the Board deny Chemetco’s request under Section 720.131(c), but grant the request under
    Section 720.131(a) with a number of conditions. IEPA Am. Resp. at 21-22.
    Chief Hearing Officer Michael Wallace held a hearing on March 11, 1997. Both
    parties filed post-hearing briefs, and Chemetco also moved to supplement the record after the
    hearing.
    In response to Chemetco’s motion to supplement the record, the Board ordered another
    hearing. See Petition of Chemetco, Inc. for an Adjusted Standard From 35 Ill. Adm. Code
    720.131(a) and (c) (May 15, 1997), AS 97-2, slip op. at 2. The Board limited the subject of
    the second hearing to the documents Chemetco sought to add to the record through its motion.
    Chief Hearing Officer Michael Wallace held the second hearing on August 26, 1997.
    2
    Neither
    party chose to file briefs after the second hearing.
    IEPA’s Second Amended Response
    On August 14, 1997, before the second hearing, IEPA filed a second amended
    response. In its second amended response, IEPA changed its position on Chemetco’s request
    under Section 720.131(a), and now recommends denial.
    Chemetco filed a reply on August 22, 1997, stating in part that the Board should reject
    IEPA’s second amended response. Reply at 3. The Board treats this portion of Chemetco’s
    reply as a motion to strike IEPA’s second amended response. IEPA, treating the same portion
    of Chemetco’s reply as a motion to strike, filed a response on August 25, 1997.
    In its reply, Chemetco argues that IEPA’s second amended response violates 35 Ill.
    Adm. Code 106.715 because IEPA filed it after the first hearing. Reply at 3. The Board
    disagrees.
    Section 106.715 provides in pertinent part:
    1
    Chemetco’s petition is cited as “Pet. at _.” IEPA’s initial response, filed on September 9,
    1996, is cited as “IEPA Resp. at __.” Chemetco’s reply (filed September 19, 1996) to IEPA’s
    response is cited as “ Chem. Reply at _.” IEPA’s amended response, filed January 28, 1997,
    is cited as “IEPA Am. Resp. at _.”
    2
    The transcript of the March 11, 1997, hearing is cited as “Tr.1 at _;” the transcript of the
    August 26, 1997, hearing is cited as “Tr.2 at _.” Chemetco’s hearing exhibits are cited as
    “Chem. Exh. _;” IEPA’s hearing exhibits are cited as “IEPA Exh. _.”

    3
    The Agency may amend its response even if the petitioner has not
    amended its petition. In such instance, a response may only be
    amended prior to close of the hearing if a hearing is held . . . .
    35 Ill. Adm. Code 106.715.
    The Board’s procedural rules contemplate the possibility of having more than one hearing on
    an adjusted standard. See 35 Ill. Adm. Code 106.415(a) (“The Board will hold at least one
    public hearing prior to granting an adjusted standard.”) and 106.416(b) (“The Board will issue
    such orders as the Board deems appropriate, including, but not limited to . . . directing that
    further hearings be held.”) When that happens, as it did here, IEPA may amend its response
    before the close of the final hearing. Accordingly, the Board denies Chemetco’s motion to
    strike IEPA’s second amended response.
    FINDINGS OF FACT
    The Bunker and its Contents
    Chemetco owns and operates a secondary metal smelter at Route 3 and Oldenberg Road
    in Hartford, Madison County, Illinois. Tr.1 at 9; Chem. Exh. 14 at 2. Chemetco’s facility
    includes a bunker that is approximately 365 feet by 310 feet. It is made of concrete and has
    walls and a floor, but no roof. Tr.1 at 11, 83, 107, 117-118; Chem. Exh. 14 at 3-4.
    The bunker contains three types of materials. First, the bunker contains approximately
    30,000 to 40,000 tons of zinc oxide. Tr.1 at 10-11, 29-30, 114-115. Chemetco moved the
    zinc oxide to the bunker in 1984 or 1985. Before then, Chemetco kept the material in an on-
    site “pile . . . used to store and dry zinc oxide from the zinc oxide lagoons” at the facility.
    The bunker stands at the location of the former zinc oxide pile. Tr.1 at 131; Chem. Exh. 14
    at 2-5, 11, Fig. 2-2. No zinc oxide or other material has been added to the bunker since
    September 1985. Tr.1 at 8, 11; Chem. Exh. 14 at 5.
    Chemetco presented some evidence on how it currently generates zinc oxide (discussed
    below at pages 4 and 5), but no evidence explaining how it generated the zinc oxide now in the
    bunker. The record suggests that the process that Chemetco uses now is different than the
    process it used when it generated the zinc oxide now in the bunker. See IEPA Resp.,
    Attachment 5 at 36.
    Chemetco presented test results for metals present in two samples of the bunker’s zinc
    oxide. The average metals content in the two samples is as follows:
     
    zinc
    25.0%
     
    lead
    11.4%
     
     
    copper
    7.25%
     
     

    4
     
    iron
    2.045%
     
     
    tin
    1.77%
     
     
    nickel
    0.325%
     
     
    cadmium
    0.28%
     
    silver
      
    0.236%
    Tr.1 at 70; Chem. Exh. 9.
    The second type of material that the bunker contains is “soil excavated during the
    closure” of the former zinc oxide pile, as well as areas at the facility known as the “zinc oxide
    lagoons” and the “cooling water canal.” Chemetco’s consultant’s report describes these three
    areas as “hazardous waste management units,” but there is no evidence on the types of
    hazardous wastes managed in these areas. Chem. Exh. 14 at 2-3, 5, Fig. 2-2. The amount of
    soil in the bunker from these areas is something less than 40,000 tons. Chem. Exh. 14 at 3.
    Chemetco provided no test results regarding the excavated soil itself. However, Chemetco
    performed EP toxicity tests for lead and cadmium on soil samples from beneath the former
    zinc oxide pile to determine how much soil to excavate. Chem. Exh. 14 at 4-5, 11, Fig. 2-3.
    The third type of material that the bunker contains is an estimated 23,500 tons of slag.
    Chem. Exh. 14 at 3, 5, 8. Chemetco presented no evidence on how it generated the slag.
    Chemetco placed the slag over the other materials in the bunker to suppress emissions of dust
    into the air. Tr.1 at 11, 82, 103; Chem. Exh. 14 at 7-8.
    None of the zinc oxide has been removed from the bunker since being placed there.
    Tr.1 at 126-127, 131; Chem. Exh. 14 at 3-5. According to the petition (Pet. at 2), the
    material accumulated because the market for zinc oxide was very volatile in the 1980s, but the
    Board finds that Chemetco presented no evidence to support this assertion.
    Chemetco’s Current Operations
    Chemetco would like to sell the zinc oxide in the bunker along with the zinc oxide that
    it currently generates. Accordingly, a brief overview of Chemetco’s current operations is
    necessary.
    Chemetco currently employs approximately 150 people at the facility. Tr.1 at 65.
    Chemetco receives various used, metal-bearing materials (number two copper, red brasses,
    yellow brasses, radiators, industrial skimmings, and copper and tin fines). Using its furnaces,
    Chemetco produces anode copper (an 825 pound mold of 99.2% pure copper) and crude solder
    (a 10,000 to 15,000 pound mold of lead and tin) from these materials. The anode is
    eventually processed into wire bar, copper wire, and copper bar, while the solder is sold to a
    refiner to make pure lead and pure tin. Tr.1 at 9, 65-67; Chem. Exh. 1.

    5
    Chemetco has a device called a wet scrubber that uses water to capture air-borne
    particulates from its smelting process. Chemetco generates approximately 900 to 1,000 tons of
    zinc oxide each month from the wet scrubber. The average metals content in nine samples of
    the zinc oxide from current operations is as follows:
     
    zinc
    28.308%
     
     
    lead
    15.746%
     
     
    copper
    7.378%
     
     
    tin
    2.774%
     
     
    iron
    1.343%
     
     
    cadmium
    0.371%
     
     
    nickel
    0.129%
     
    silver
    0.014%.
    Tr.1 at 10, 24, 34, 47, 50, 67-68, 70; Chem Exh. 1, 5, 10.
    From the wet scrubber, the zinc oxide is moved through settling ponds, settling cells,
    and a filter press at the Chemetco facility, after which it is taken to an on-site building known
    as the fines building. In the fines building, Chemetco mixes the zinc oxide with a generally
    equal amount of “copper/tin fines,” which Chemetco purchases or receives for free.
    The copper/tin fines have greater concentrations of certain metals than the zinc oxide,
    but Chemetco did not provide a breakdown of metals concentrations specific to the copper/tin
    fines. Chemetco adds the copper/tin fines to the zinc oxide to increase the content of certain
    metals and thereby increase value. Tr.1 at 11, 32-34, 44, 72-74, 97-99; Tr.2 at 48-49; Chem.
    Exh. 1, 5, 11, 18. This roughly 50/50 blend is referred to below as the “blended material.”
    Information on the blended material’s metals concentrations is set forth in a shipping
    document:
     
    copper
    22.8%
     
     
    zinc
    9.5%
     
     
    iron
    2.7%
     

    6
    nickel
    0.5%
    Tr.2 at 22, 63; Chem. Exh. 18.
    Chemetco’s Proposed Removal of Materials from the Bunker
    Chemetco would like to sell the bunker’s zinc oxide, along with its currently generated
    zinc oxide, under the arrangements described below at pages 7 and 8. Tr.1 at 16-17, 34-35,
    56-57, 128-131; Tr.2 at 28. Chemetco estimates that it would take approximately five to six
    years to sell all of the zinc oxide in the bunker. Tr.1 at 16. Chemetco proposes to prepare the
    bunker’s zinc oxide for shipment off-site by moving it through the existing equipment and
    facilities used for its currently generated zinc oxide, with certain modifications. Tr.1 at 72-74,
    77-78, 97-99.
    Chemetco would add water to the bunker so as to create a slurry of the zinc oxide,
    enabling it to be pumped out. Tr.1 at 100, 108-109; Chem. Exh. 14 at 5, 7. If necessary,
    Chemetco would use heavy equipment to push the zinc oxide toward the pump. Tr.1 at 120-
    121; Chem. Exh. 14 at 5, 7. The slurry would be pumped to the settling ponds, at which
    point it would commingle with the currently generated zinc oxide. From there, the material
    would move to the settling cells and then to two filter presses for dewatering. Tr.1 at 17, 72-
    73, 79, 82-84, 94, 96, 98-99; Chem. Exh. 11, 14 at 5, 7.
    The resulting zinc oxide “filter cake” would be loaded into dump pans for trucking to
    the fines building, where it would be blended with copper/tin fines. The blended material
    would be loaded into container trailers in the fines building for transport to barges. Tr.1 at
    72-73, 88-89, 92, 99; Chem. Exh. 11, 14 at 7.
    Because of the additional volume of zinc oxide, Chemetco would add one worker per
    shift to operate the settling cells and filter presses, and use a second filter press that is at the
    facility but currently not in full use. Tr.1 at 16-17, 73-74, 79, 92-94, 98-99. Chemetco
    acknowledged that the settling ponds and settling cells are merely a means of getting the
    bunker’s zinc oxide to the filter presses; the material could go directly from the bunker to a
    filter press. However, there may not be enough room to set up a filter press next to the
    bunker. Tr.1 at 77-79, 97.
    Chemetco plans to segregate the bunker’s slag from the zinc oxide. The slag would be
    removed from the bunker and placed with “the current slag production.” Tr.1 at 104-105;
    Chem. Exh. 14 at 8. Chemetco does not plan to segregate the bunker’s excavated soil from
    the zinc oxide. Instead, the soil would become part of the slurry and shipped off-site with the
    zinc oxide. Tr.1 at 122-123.
    The bunker’s zinc oxide, which is exposed to precipitation, has a moisture content of
    approximately 45%. Water ponds in one corner of the bunker. Tr.1 at 83, 100, 117-118.
    During the year before the first hearing, a liquid leaked out of a wall of the bunker into a
    secondary containment area for the bunker. Tr.1 at 117, 119. Chemetco’s consultant testified

    7
    that the bunker was secure as of the first hearing, but no evidence was offered as to how the
    leakage was repaired or what measures, if any, Chemetco had taken to prevent such leakage in
    the future. Tr.1 at 124. In addition, Chemetco has not calculated whether the process of
    removing zinc oxide from the bunker, which includes adding water to the bunker, would affect
    the bunker’s structural integrity. Tr.1 at 117-118.
    Chemetco had a 3,000 to 5,000 cubic yard “spill” of zinc oxide in September 1996
    from a “former stormwater pipe.” Tr.1 at 118-119; Chem. Exh. 14 at App. 4. On cross-
    examination, neither Chemetco’s environmental coordinator nor its consultant knew exactly
    where the spill came from and neither could say that it did not come from the settling ponds.
    Tr.1 at 94, 119. Chemetco offered no evidence on what measures, if any, it had taken to
    prevent such a spill in the future.
    Chemetco’s Arrangements to Sell Zinc Oxide
    Chemetco had arrangements to sell the blended material to two overseas entities—
    Elmet, S.L. (Elmet), of Spain, and Metabel B.V. (Metabel), of Holland.
    3
    Elmet Arrangement
    The arrangement with Elmet was described as a one-year renewable agreement for up
    to 3,000 metric tons
    4
    of the blended material per month. Tr.1 at 10-14, 20, 23, 25, 31-32,
    53, 57; Tr.2 at 44, 59-60; Chem. Exh. 1, 5, 19. The arrangement was renewed for 1997 and
    Elmet and Chemetco expected the arrangement to continue. Tr.2 at 9, 28, 39, 46; Chem.
    Exh. 5, 19. In exchange for the blended material, Chemetco receives red brass, which is
    valued at the market price set by the copper board in the United States. Tr.1 at 14-15, 32-33,
    45, 59; Tr.2 at 41, 64-65; IEPA Exh. 5. The red brass is not produced from the blended
    material. Tr.1 at 59; Tr.2 at 41. The blended material’s value is based on the respective
    percentages of metals in the blended material and the market price for those metals set by the
    London Metals Exchange. Tr.1 at 45-47, 64-65.
    Chemetco and Elmet keep accounts on these transactions and Chemetco periodically
    pays money to Elmet to make up for imbalances resulting from red brass being more valuable
    than the blended material. Tr.1 at 15, 32-33; Tr.2 at 38, 46-47. Chemetco makes a profit on
    the Elmet transactions. Tr.1 at 15-16, 64.
    Chemetco’s zinc oxide transactions with Elmet date back to 1994. Chemetco has not
    sold zinc oxide to anyone else since that time and, as of the first hearing, it was selling all of
    its currently generated zinc oxide to Elmet. Tr.1 at 10, 12-13, 19-20, 24-25, 133; Tr.2 at 58-
    59; Chem. Exh. 3, 4, 12; IEPA Exh. 2, 5.
    3
    The Board did not consider arrangements that were not finalized.
    4
    A metric ton equals 2,204.62 pounds.

    8
    Elmet acquires the blended material for three reasons. First, Elmet’s furnaces recover
    metals from the blended material, including copper, tin, lead, gold, silver, palladium, and
    platinum. Elmet recovers the metals in the form of black copper shots, which Elmet
    apparently sells. Chemetco failed to provide evidence on whether or how much of each metal
    in the blended material or in the zinc oxide itself is recovered. Chemetco maintained that the
    silver and gold recovered by Elmet come solely from the zinc oxide, but Chemetco provided
    no test results showing any gold present in its zinc oxide. Nor did it provide any test results
    confirming that the blended material contains palladium or platinum. Second, in Chemetco’s
    Exhibit 5, Elmet stated that “[z]inc metal when in contact with injected oxygen, in a certain
    atmosphere,” provides extra heat to Elmet’s smelting process, which lowers its energy costs.
    There was no evidence on how much heat the zinc contributes to this process. Third, the
    blended material increases the zinc content of the oxides collected from Elmet’s filter, making
    Elmet’s oxides more attractive to zinc producers. Tr.1 at 13, 30-31, 34; Tr.2 at 41-42; Chem.
    Exh. 1, 5.
    Metabel Arrangement
    The arrangement with Metabel is to last from April 1, 1997 (
    i.e.
    , after the first
    hearing) to March 31, 1998. This arrangement calls for Metabel to acquire 400 metric tons
    per month of the blended material “for further refining.” Tr.1 at 18-19, 34-35, 53, 128-130;
    Chem. Exh. 15. Chemetco provided no other information as to what Metabel will do with the
    blended material. The document described as the Metabel agreement has a pricing provision
    that appears to rely on the London Metals Exchange. Tr.1 at 18-19, 128-130; Chem. Exh. 15.
    Chemetco provided no information on its expected profit, if any, from this arrangement.
    DISCUSSION
    Chemetco asks the Board to determine that zinc oxide in the bunker is not a solid waste
    once Chemetco removes it from the bunker for recycling. Tr.1 at 104; Pet. at 6; Chem. Reply
    at 2. The status of materials as “solid wastes” is significant because under the laws and
    regulations that Congress and the United States Environmental Protection Agency (USEPA)
    have established, only those materials that are “solid wastes” can be regulated as “hazardous
    wastes” under Subtitle C of RCRA
    5
    and the corresponding Illinois laws and regulations.
    Accordingly, materials that are not solid wastes are not subject to the hazardous waste
    regulations.
    In addition, materials that are not solid wastes, and therefore not hazardous wastes, are
    not subject to the rules that apply to the recycling of hazardous wastes or the export of
    hazardous wastes. See 35 Ill. Adm. Code 721.106, 722.Subpart E. Chemetco maintains that
    5
    RCRA means the Solid Waste Disposal Act, as amended by the Resource Conservation and
    Recovery Act of 1976, as amended, 42 U.S.C. 6901
    et seq.
    See 35 Ill. Adm. Code 720.110.

    9
    without the requested determination, Chemetco will have to landfill the bunker’s zinc oxide
    on-site.
    6
    Tr.1 at 16; Pet. at 1-2.
    Chemetco seeks this determination under Section 720.131(a) and (c). Pet. at 1. Those
    subsections provide standards and criteria for the Board to use in determining, on a case-by-
    case basis, whether certain materials, that would otherwise be considered solid wastes, are not
    solid wastes. See 35 Ill. Adm. Code 720.130; see also 35 Ill. Adm. Code 106.903(b). The
    Board considers subsections (a) and (c) in turn.
    Initially, we note that the Board regulations at issue are substantively identical to
    regulations that USEPA promulgated under RCRA. We also note that the Board has never
    before issued a final opinion and order interpreting the solid waste determination provisions of
    Section 720.131(a) or (c). Accordingly, the Board from time to time refers to USEPA
    guidance and preamble language interpreting the federal counterpart to the Board regulations at
    issue.
    Regulatory Framework: Section 720.131(a)
    Section 720.131(a) reads in part as follows:
    a) The Board will determine that those materials that are
    accumulated speculatively without sufficient amounts being
    recycled are not solid wastes if the applicant demonstrates that
    sufficient amounts of the material will be recycled or transferred
    for recycling in the following year. . . . 35 Ill Adm. Code
    720.131(a).
    It is important to note that the relief that Section 720.131(a) affords is available only
    for those materials that have been “accumulated speculatively.” That term is defined in part as
    follows:
    A material is ‘accumulated speculatively’ if it is accumulated
    before being recycled.
    7
    A material is not accumulated
    speculatively, however, if the person accumulating it can show
    that the material is potentially recyclable and has a feasible means
    of being recycled; and that -- during the calendar year
    (commencing on January 1) -- the amount of material that is
    recycled, or transferred to a different site for recycling, equals at
    least 75 percent by weight or volume of the amount of that
    6
    The Board notes that a determination that this zinc oxide is not a solid waste is not
    necessarily a prerequisite to its recycling. For example, hazardous wastes may be recycled,
    subject to the restrictions outlined in 35 Ill. Adm. Code 721.106.
    7
    “A material is ‘recycled’ if it is used, reused or reclaimed.” 35 Ill. Adm. Code
    721.101(c)(7).

    10
    material accumulated at the beginning of the period. . . .
    (Materials that are already defined as solid wastes also are not to
    be included in making the calculation.) Materials are no longer
    in this category once they are removed from accumulation for
    recycling, however. 35 Ill. Adm. Code 721.101(c)(8).
    The speculative accumulation provision allows USEPA “to regulate certain secondary
    materials, intended for recycling, as solid wastes if the person claiming their waste was
    excluded did not recycle sufficient quantities of these materials within a calendar year.”
    RCRA Permit Policy Compendium, 9441.1993(08) (May 6, 1993, letter to William C. Rankin
    from Sylvia K. Lowrance, Director, Office of Solid Waste, USEPA). In explaining the need
    for the provision, USEPA noted “the large number of recycling damage cases where secondary
    materials that were overaccumulated over time caused extensive harm.” 50 Fed. Reg. 614,
    635 (Jan. 4, 1985).
    It is also important to note that materials that are already defined as solid wastes do not
    become solid wastes under this provision.
    8
    In other words, materials may become solid wastes
    by being accumulated speculatively only if they are not otherwise solid wastes. As USEPA
    explains:
    [T]his provision applies to all spent materials, sludges, and by-
    products not already defined as solid and hazardous wastes and
    that are accumulated before any type of recycling. The provision
    thus applies to secondary materials not otherwise considered to be
    wastes when recycled . . . . Thus, if [certain] materials are
    overaccumulated, they would be considered to be hazardous
    wastes and would become subject to regulation . . . . The
    provision does
    not
    apply to secondary materials that already are
    wastes when they are recycled . . . . 50 Fed. Reg. 614, 635
    (Jan. 4, 1985) (emphasis in original).
    Therefore, the Board holds that a petitioner seeking the relief that Section 720.131(a)
    provides must prove, as a threshold matter, that its material has become a solid waste only
    because it has been accumulated speculatively, and not for some other reason. This requires
    the Board to consider, as a threshold matter, how a material has become a solid waste.
    8
    The speculative accumulation provision “is not applicable to those materials already defined
    as solid wastes . . . . This is evident in the definition of ‘accumulated speculatively’ . . .
    which states that ‘ . . . (Materials that are already defined as solid wastes also are not to be
    included in making the calculation.)’.” RCRA Permit Policy Compendium, 9497.1989(02)
    (Oct. 19, 1989, letter to E.L. Williams, Jr., from Edwin F. Abrams, Chief, Review Section,
    Office of Solid Waste and Emergency Response, USEPA.)

    11
    How Do Materials Become Solid Wastes?
    To “determine if a secondary material is a RCRA solid waste when recycled, one must
    examine both the material and the recycling activity involved.” 50 Fed. Reg. 614, 619 (Jan.
    4, 1985). In doing so, the Board considers three factors.
    9
    See 35 Ill. Adm. Code
    721.102(c). The first factor is which of several categories the material fits into: “spent
    materials;” “sludges;” or “by-products.” See 35 Ill. Adm. Code 721.102(c) and
    721.Appendix Z. Each of these terms is specifically defined, and whether a material is, for
    example, a “spent material” or a “sludge” depends primarily on how it is generated. For
    example, a “sludge” is “any solid, semi-solid or liquid waste generated from a municipal,
    commercial or industrial wastewater treatment plant, water supply treatment plant or air
    pollution control facility exclusive of the treated effluent from a wastewater treatment plant.”
    See 35 Ill. Adm. Code 721.101(c)(2) (refers to 35 Ill. Adm. Code 720.110). However, an
    extensive discussion of the definitions of these terms is not necessary for our purposes.
    10
    The second factor is whether the material is an unlisted “characteristic” hazardous
    waste or a “listed” hazardous waste. See 35 Ill. Adm. Code 721.102(c) and 721.Appendix Z.
    Generally, a solid waste is a hazardous waste if it exhibits a “characteristic” of hazardous
    waste (
    i.e.
    , it is toxic, corrosive, ignitable, or reactive) or if it is “listed” as hazardous waste
    (
    e.g.
    , it comes from a specific type of process, such as electroplating). See 35 Ill. Adm. Code
    721.103, 721, Subparts C and D.
    11
    The third factor that determines whether a material to be recycled is a solid waste is the
    recycling activity involved—
    i.e.
    , whether the material will be “used in a manner constituting
    disposal,” “burned for energy recovery,” or “reclaimed,” or whether the material is
    “accumulated speculatively” before being recycled. See 35 Ill. Adm. Code 721.102(c) and
    721.Appendix Z.
    9
    In some cases, the regulations require the Board to consider other factors. Section
    721.102(d) provides that specified materials are solid wastes when recycled in any manner.
    See 35 Ill. Adm. Code 721.102(d). Section 721.102(e) provides that materials are not solid
    wastes when recycled in specified ways. See 35 Ill. Adm. Code 721.102(e). However, the
    record does not indicate that these provisions are relevant here.
    10
    “Spent material,” “sludge,” and “by-product” are defined at 35 Ill. Adm. Code
    721.101(c)(1), (2), and (3), respectively. There are other categories of materials, but the
    record does not indicate that they are relevant in this case.
    11
    The definition of “solid waste” applies only to materials that are also “hazardous waste” for
    purposes of the regulations implementing Subtitle C of RCRA. See 35 Ill. Adm. Code
    721.101(b)(1). As USEPA explained, “[a]lthough hazardous wastes are a subset of solid
    wastes under RCRA, [USEPA’s] regulatory authority under Subtitle C applies only to
    hazardous wastes. Since the present regulations apply only to Subtitle C, we have chosen to
    make the definition of solid waste applicable to those materials that also are hazardous
    wastes.” 50 Fed. Reg. 614, 616, n. 3 (Jan. 4, 1985).

    12
    These factors, when considered together, determine whether and how a material
    becomes a solid waste. (The relationship between these factors is set forth in Section
    721.102(c) and Appendix Z to Part 721. A portion of Appendix Z is attached as Attachment
    1.) Whether and how a material becomes a solid waste in turn determines whether Section
    720.131(a) applies. This is illustrated by the following three examples:
    Example 1—A sludge is listed as a hazardous waste in Section
    721.131 or 721.132 and it will be reclaimed. Under Section
    721.101(c)(3) and Appendix Z to Part 721, this material is a
    solid waste.
    12
    It has become a solid waste for a reason other than
    speculative accumulation. Therefore, Section 720.131(a) does
    not apply.
    Example 2—A by-product is not listed in Section 721.131 or
    721.132 but it exhibits a characteristic of hazardous waste, and it
    will be burned for energy recovery. Under Section 721.101(c)(2)
    and Appendix Z, this material is a solid waste. It has become a
    solid waste for a reason other than speculative accumulation.
    Therefore, Section 720.131(a) does not apply.
    Example 3—A by-product is not listed in Section 721.131 or
    721.132 but it exhibits a characteristic of hazardous waste, and it
    will be reclaimed. Although this is the same material considered
    in second example, it is not a solid waste because it will be
    reclaimed instead of burned for energy recovery. See 35 Ill.
    Adm. Code 721.102(c)(3); see also Attachment 1 and 50 Fed.
    Reg. 614, 619 (Jan. 4, 1985) (same material’s status as a waste
    or not can vary depending on how it is to be recycled). If this
    material is accumulated speculatively before being reclaimed, it
    would become a solid waste because of the speculative
    accumulation provision (and most importantly, only because of
    the speculative accumulation provision). Thus, in this example,
    the relief that Section 720.131(a) provides would be available.
    Does Section 720.131(a) Apply Here?
    In order to determine whether Chemetco is eligible for the relief that Section
    720.131(a) provides, therefore, it is Chemetco’s burden to prove that the bunker’s zinc oxide
    became a solid waste only because it was accumulated speculatively. See 35 Ill. Adm. Code
    12
    “[T]he determination of whether or not a material being reclaimed is a solid waste is made at
    the point of generation. . . . The recycling activity is viewed prospectively; that is, the status
    of certain secondary materials is determined by knowing how the material is going to be
    recycled.” RCRA Permit Policy Compendium, 9441.1993(08) (May 6, 1993, letter to
    William C. Rankin from Sylvia K. Lowrance, Director, Office of Solid Waste, USEPA).

    13
    106.808 and 720.133. As discussed, that question depends on: (1) which of the categories of
    material the zinc oxide in the bunker fits into (
    i.e.
    , is it a spent material, a sludge, etc.); (2)
    whether the material is characteristic or listed hazardous waste; and (3) how it will be recycled
    (
    i.e.
    , by reclamation, burning for energy recovery, etc.). These factors are considered below.
    Is the Zinc Oxide in the Bunker a Spent Material, a Sludge, or a By-product?
    While one consultant’s report refers to the zinc oxide in the bunker as “sludge,”
    Chemetco provided no evidence on how the material was generated. Chem. Exh. 6.
    Chemetco, at best, implies that the bunker’s zinc oxide came from the same source as its
    currently generated zinc oxide, the wet scrubber. Tr.1 at 10-11. This does not satisfy
    Chemetco’s burden. As a result, there is insufficient evidence for the Board to decide if the
    bunker’s zinc oxide is a “spent material,” a “sludge,” or a “by-product.”
    Is the Zinc Oxide in the Bunker a Characteristic or Listed Hazardous Waste?
    Even if there was sufficient evidence for the Board to find that the material is a sludge
    or a by-product, Chemetco failed to provide enough evidence to establish whether the material
    is a characteristic or listed hazardous waste. As is evident from Section 721.101(c) and
    Appendix Z to Part 721, this information can determine whether a material to be recycled is or
    is not a solid waste.
    The only evidence potentially addressing whether the material exhibits a characteristic
    of hazardous waste is one sentence in a consultant’s report stating that “[t]esting has shown the
    zinc oxide, which is being sold . . ., to be extraction procedure toxic for lead.” Chem. Exh.
    14 at 3. This is not enough. Not only is it unclear whether this sentence refers to the bunker’s
    zinc oxide, but Chemetco provided no other information on the test method and no test
    results.
    13
    Furthermore, IEPA stated in its Second Amended Response that the bunker’s zinc
    oxide may be a listed hazardous waste—K069 “Emission control dust/sludge from secondary
    lead smelting” at 35 Ill. Adm. Code 721.132. IEPA Am. Resp. at 2. Chemetco provided no
    evidence responsive to this.
    Further questions on how to categorize the material are raised by the presence in the
    bunker of soil that Chemetco proposes to ship off-site with the zinc oxide. The soil may be
    contaminated with hazardous waste because it was excavated from several areas described as
    “hazardous waste management units.”
    14
    Chemetco provided no test results of this soil and we
    do not know what types of hazardous wastes may have been managed in these areas. This
    information could determine whether the bunker’s zinc oxide is a characteristic or listed
    hazardous waste. Chemetco failed to address this issue.
    How will the Zinc Oxide in the Bunker be Recycled?
    13
    In testing for the hazardous waste characteristic of toxicity, the “extraction procedure” may
    refer to the EP toxicity test or the Toxicity Characteristics Leaching Procedure (TCLP). The
    TCLP test replaced the EP toxicity test. See 35 Ill. Adm. Code 721.124.
    14
    “Hazardous waste management unit” is defined at 35 Ill. Adm. Code 720.110.

    14
    Likewise, Chemetco failed to provide sufficient evidence to establish that the bunker’s
    zinc oxide will be recycled in such a way that Section 720.131(a) may apply. We know that
    Elmet recovers metals from the blended material in the form of black copper shots, which
    Elmet apparently sells. This could be reclamation.
    15
    Yet we do not know whether or how
    much of each metal in the zinc oxide is recovered. Chemetco also maintained that the silver
    and gold Elmet recovers come from the currently generated zinc oxide and not from the
    copper/tin fines. But Chemetco provided no test results showing any gold present in the
    currently generated zinc oxide (or the bunker’s zinc oxide). Chemetco also did not prove that
    neither gold nor silver are present in the copper/tin fines.
    Moreover, Elmet acquires the blended material for another reason as well—because its
    zinc content gives Elmet’s smelting process extra heat, which lowers Elmet’s energy costs.
    This could be burning for energy recovery. While we do not know how much heat the zinc
    contributes to the process, test results show that zinc is the predominant metal in both the
    currently generated zinc oxide and the bunker’s zinc oxide. USEPA states that where a facility
    burns an unlisted, characteristic by-product to recover both energy and materials, it is burning
    for energy recovery, not reclaiming—that is, the facility “is considered to be burning a
    hazardous waste, even though the waste is an unlisted by-product, and even though there is
    some material recovery.” 50 Fed. Reg. 614, 631 (Jan. 4, 1985).
    As for what Metabel will do with the blended material, we only know that it is
    acquiring it “for further refining.” This is not enough information for the Board to determine
    how the blended material will be recycled.
    In summary, the Board finds that Chemetco has not shown that the relief provided by
    Section 720.131(a) is available. The Board emphasizes that it is not holding that the zinc
    oxide in the bunker is or is not solid waste; rather, Chemetco simply has not established that
    Section 720.131(a) applies here.
    16
    15
    “A material is ‘reclaimed’ if it is processed to recover a usable product, or if it is
    regenerated. Examples are recovery of lead values from spent batteries and regeneration of
    spent solvents.” 35 Ill. Adm. Code 721.101(c)(4).
    16
    Chemetco’s request for relief also does not easily fit within Section 720.131(a) because
    Chemetco has requested that the Board’s determination attach only when the zinc oxide is
    removed from the bunker. Under Section 720.131(a), that determination would attach to the
    zinc oxide while in the bunker, not upon its removal. Furthermore, the parties did not address
    whether the term “the following year,” which is used twice in Section 720.131(a), limits when
    persons may seek relief under that section. Given the Board’s ruling, however, these issues
    are not material at this time.

    15
    Section 720.131(a) Factors
    The Board also finds that Chemetco did not provide all of the information that the
    Section 720.131(a) factors require. These factors are discussed in turn below.
    Section 720.131(a)(1): The manner in which the material is expected to be recycled, when the
    material is expected to be recycled, and whether this expected disposition is likely to occur (for
    example, because of past practice, market factors, the nature of the material or contractual
    arrangements for recycling).
    As discussed above at page 14, Chemetco has not provided the Board with adequate
    information on how the material is “expected to be recycled.” In addition, there is also
    considerable uncertainty as to whether and when the bunker’s zinc oxide would be recycled.
    Chemetco had been shipping the blended material to Elmet for several years and there was
    evidence that Elmet and Chemetco expected the arrangement to continue. Nevertheless, the
    arrangement was for only one year at a time and Chemetco estimated that it would take
    approximately five to six years to sell the bunker’s zinc oxide while continuing to sell the zinc
    oxide it currently generates. In fact, on this record, the only actual arrangements Chemetco
    had to sell the blended material were to last until the end of 1997 (Elmet) or until the end of
    March 1998 (Metabel). Moreover, we do not know what impact the soil in the bunker may
    have on the likelihood that the bunker’s zinc oxide will be recycled, or on the timing of its
    recycling.
    The Board finds that Chemetco did not provide all of the information that Section
    720.131(a)(1) requires.
    Section 720.131(a)(2): The reason that the applicant has accumulated the material for one or
    more years without recycling 75 percent of the volume accumulated at the beginning of the
    year.
    Chemetco stated that it accumulated the zinc oxide in the bunker because the market for
    the material was very volatile in the 1980s. Chemetco made this statement in its petition and
    introduced no evidence at hearing to support it. This is insufficient to meet Chemetco’s
    burden under Section 720.131(a)(2).
    Section 720.131(a)(3): The quantity of material already accumulated and the quantity
    expected to be generated and accumulated before the material is recycled.
    Although we do not know how it was generated, the evidence shows that there is
    approximately 30,000 to 40,000 tons of zinc oxide in the bunker. Chemetco established the
    quantity of zinc oxide that it currently generates from its wet scrubber (approximately 900 to
    1,000 tons per month). Chemetco proposes to handle these materials together once they enter
    the settling ponds.

    16
    The Board cannot say, however, how much material is expected to be generated and
    accumulated “before the material is recycled.” To answer this, we would need to know
    whether and when the material would be recycled. As noted above in the discussion of the
    first factor, there is much uncertainty on this point, even assuming that Chemetco’s rate of
    generating zinc oxide would not increase. The Board finds that Chemetco has not met its
    burden under Section 720.131(a)(3).
    Section 720.131(a)(4): The extent to which the material is handled to minimize loss.
    Chemetco stated that it would add water to the zinc oxide before removing it from the
    bunker. Although this measure should minimize air emissions while the material remains
    moist, Chemetco failed to provide information on how other losses, such as spills, would be
    minimized. For example, Chemetco has not calculated whether adding water to the bunker or
    other removal activities would affect the bunker’s structural integrity. We also know that a
    bunker wall had recently leaked. In addition, Chemetco had a large spill of zinc oxide in
    September 1996, yet neither Chemetco’s environmental coordinator nor its consultant knew
    exactly where the spill came from and neither could say that it did not come from the settling
    ponds Chemetco proposes to use for handling the bunker’s zinc oxide. Chemetco offered no
    evidence on what measures, if any, it had taken to prevent such leakage and spillage in the
    future.
    The Board finds that Chemetco failed to provide all of the information that Section
    720.131(a)(4) requires.
    Section 720.131(a)(5): Other relevant factors.
    Given the absence of evidence on the first four factors, the Board does not consider it
    appropriate to determine whether other factors are relevant.
    In summary, the Board finds that Chemetco did not provide sufficient information
    under Section 720.131(a)(1), (2), (3), or (4).
    Section 720.131(c) Materials That Have Been Reclaimed But Must Be Reclaimed Further
    Before Recovery Is Completed
    Section 720.131(c) reads in part as follows:
    c) The Board will determine that those materials that have been
    reclaimed but must be reclaimed further before recovery is
    completed are not solid wastes if, after initial reclamation, the
    resulting material is commodity-like (even though it is not yet
    a commercial product, and has to be reclaimed further). . . .
    35 Ill. Adm. Code 720.131(c).

    17
    To be eligible for this provision, the material must have been initially reclaimed but
    require further reclaiming before recovery is completed. The definition of when a material is
    “reclaimed” is set forth above in footnote 15. USEPA explains that a material is reclaimed if
    (1) “material values . . . are recovered as an end-product of a process (as in metal recovery
    from secondary materials),” or (2) it is “processed to remove contaminants,” thereby restoring
    the material to its “usable original condition.” 50 Fed. Reg. 614, 633 (Jan. 4, 1985).
    A waste being reclaimed remains a waste until reclamation is completed. Reclamation
    is not completed until the end-product of the process is recovered. A non-solid waste
    determination under Section 720.131(c) applies only
     
    to wastes after they have been initially
    reclaimed. See 50 Fed. Reg. 614, 620, 633-634, 655 (Jan. 4, 1985). In discussing its federal
    counterpart, USEPA explains that the provision is designed to address those situations where
    “the initial reclamation step is so substantial that the resulting material is more commodity-like
    than waste-like even though no end-product has been recovered.” 50 Fed. Reg. 614, 655
    (Jan. 4, 1985).
    The Board cannot find that Section 720.131(c) applies because there is insufficient
    evidence to prove that the bunker’s zinc oxide has been initially reclaimed. In addition,
    Chemetco failed to provide all of the information that the Section 720.131(c) factors require.
    Those factors read as follows:
    1) The degree of processing the material has undergone and the
    degree of further processing that is required;
     
    2) The value of the material after it has been reclaimed;
     
    3) The degree to which the reclaimed material is like an
    analogous raw material;
     
    4) The extent to which an end market for the reclaimed material
    is guaranteed;
     
    5) The extent to which the reclaimed material is handled to
    minimize loss;
     
    6) Other relevant factors. 35 Ill. Adm. Code 720.131(c).
    Under the first factor, Chemetco presented no evidence on what processing the material
    has undergone. As USEPA states, the “more substantial the initial processing, the more likely
    the resulting material is to be commodity-like.” 50 Fed. Reg. 614, 655 (Jan. 4, 1985).
    Without information on this initial processing, the Board is not in a position to assess how
    substantial it was. As discussed above, Chemetco has not fully explained the additional
    processing that the material would undergo. Chemetco presented no evidence on the third
    factor. As for the fourth factor, the same deficiencies pointed out above in the discussion of
    the first factor under Section 720.131(a) are deficiencies here as well. Similarly, Chemetco

    18
    failed to address adequately the fifth factor under Section 720.131(c) for the same reasons it
    failed to address adequately the fourth factor under Section 720.131(a), discussed above.
    In summary, the Board finds that by failing to establish that the zinc oxide in the
    bunker has been initially reclaimed, Chemetco has not shown that the relief provided by
    Section 720.131(c) is available. The Board also finds that Chemetco failed to present all of the
    information that section requires.
    CONCLUSION
    The Board finds that the evidence fails to demonstrate that Section 720.131(a) applies
    here. Specifically, Chemetco has not shown that the zinc oxide in the bunker is a solid waste
    only because it has been accumulated speculatively. In addition, the Board cannot find that
    Section 720.131(c) applies because the evidence does not establish that the zinc oxide has been
    initially reclaimed. Chemetco also failed to present all of the information required by Section
    720.131(a) and (c). The Board therefore denies Chemetco’s request. The Board emphasizes,
    however, that Chemetco may file another adjusted standard petition to provide the evidence
    necessary to support the non-solid waste determination it seeks.
    This opinion constitutes the Board’s findings of fact and conclusions of law in this
    matter. This case is dismissed and the docket is closed.
    IT IS SO ORDERED.
    Section 41 of the Environmental Protection Act (415 ILCS 5/41 (1996)) provides for
    the appeal of final Board orders to the Illinois Appellate Court within 35 days of service of this
    order. Illinois Supreme Court Rule 335 establishes such filing requirements. See 172 Ill. 2d
    R. 335; see also 35 Ill. Adm. Code 101.246, Motions for Reconsideration.
    I, Dorothy M. Gunn, Clerk of the Illinois Pollution Control Board, hereby certify that
    the above opinion and order was adopted on the 19th day of March 1998, by a vote of 7-0.
    Dorothy M. Gunn, Clerk
    Illinois Pollution Control Board

    19
    ATTACHMENT 1
    Table
    *1
    *2
    *3
    *4
    Spent materials
    Yes
    Yes
    Yes
    Yes
    Sludges (listed in Section 721.131
    or 721.132)
    Yes
    Yes
    Yes
    Yes
    Sludges exhibiting a characteristic
    of hazardous waste
    Yes
    Yes
    No
    Yes
    By-products (listed in Section
    721.131 or 721.132)
    Yes
    Yes
    Yes
    Yes
    By-products exhibiting a
    characteristic of hazardous waste
    Yes
    Yes
    No
    Yes
    * * *
    Yes - Defined as a solid waste
    No - Not defined as a solid waste
    *1 - Use constituting disposal (Section 721.102(c)(1))
    *2 - Burning for energy recovery or use to produce a fuel (Section 721.102(c)(2))
    *3 - Reclamation (Section 721.102(c)(3))
    *4 - Speculative accumulation (Section 721.102(c)(4))
    35 Ill. Adm. Code 721.Appendix Z.

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