EDF Health

When will EPA fully explain and legally justify its reviews of new chemicals under TSCA?

Stephanie Schwarz, J.D., is a Legal Fellow.  Richard Denison, Ph.D., is a Lead Senior Scientist.

Over two years have passed since EPA published its first, highly controversial New Chemicals Decision-Making Framework.  This document attempted to lay out major changes EPA was making, in response to relentless industry pressure, to its reviews of new chemicals entering the market.  Prior to this, EPA had been conducting reviews that largely conformed to the new requirements for these reviews that Congress included in the reforms to the Toxic Substances Control Act (TSCA) enacted in June 2016.

Among the many concerning aspects of EPA’s new approach were its herculean efforts to avoid finding a new chemical “may present an unreasonable risk” or that the information available to EPA is insufficient to permit a reasoned evaluation of the chemical.  Under reformed TSCA, either of those findings requires EPA to issue an order – as specified under section 5(e) of TSCA – that restricts the chemical, requires testing, or both in a manner sufficient to ameliorate the potential risk.

One of EPA’s new tactics was to illegally bifurcate its review of a company’s “intended” uses of the new chemical from other “reasonably foreseen” uses.  The company would get the coveted unfettered approval to enter commerce, based on an EPA review limited to its intended uses; these approvals take the form of EPA issuing a finding that the chemical is “not likely to present an unreasonable risk.”  Any review of other reasonably foreseen uses would be relegated (if it took place at all) to a later, wholly separate process that would only be triggered if EPA also promulgated a so-called “significant new use rule” (SNUR).  Under such a SNUR, a company seeking to engage in a reasonably foreseen use of the chemical EPA identified would be required to first notify EPA, who would then conduct a review of that new, now “intended,” use.

These SNURs are often referred to as “non-5(e) order SNURs” because they do not follow from EPA’s issuance of an order under section 5(e) – indeed, avoiding such orders was the whole point.  We have previously addressed the many problems – legal, policy, and scientific – with this approach; see for example, here and here.  These include:

  • the failure to assess all intended and reasonably foreseen uses of a new chemical at the same time, as required by TSCA and necessary to consider the potential for people to be subject to multiple exposures; and
  • the inability to require testing of the new chemical substance using a SNUR, which can be required through an order.

EPA held a public meeting and took public comment on its 2017 Framework at the time it was published.  But it never responded to the many comments it received criticizing its framework.  And when EPA was sued over its use of the Framework, it dodged the suit by claiming it was not using the Framework (see p. 14 here), leading to the lawsuit being withdrawn.  (Later in this post below we discuss that EPA has in fact been repeatedly using the core feature of the Framework.)

Meanwhile, hundreds of decisions made with no public framework

EPA has never made public any subsequent description of its decision-making approach or justification for it, despite the hundreds of new chemical approvals it has been cranking out ever since.  EPA has also never responded to the numerous public comments it received criticizing its framework.

Frustration over this situation led to a Congressional call for EPA to publish and then take comment on an updated description of its new chemicals review process.  Last January, EPA Administrator Andrew Wheeler made a commitment to Senator Carper to publish a revised new chemicals framework that would specify: “(i) the statutory and scientific justifications for the approaches described, (ii) the policies and procedures EPA is using/plans to use in its PMN reviews, and (iii) its responses to public comments received,” and to provide opportunity for public comment on the revised framework.

Last month EPA announced that it will hold a “Public Meeting on [the] TSCA New Chemicals Program,” which is to take place tomorrow, December 10.  However, while the agenda includes a speaker who will provide an “overview” of what EPA is now calling its “working approach,” EPA’s announcement indicated it would not release any actual document before the public meeting; instead, it will do so “by the end of the year.”  And while the meeting agenda provides for “public feedback” at the end of the meeting, the lack of any document to respond to will surely limit the ability of the public to provide meaningful input.

Absent such a public document, the rest of this post will provide our best understanding of how EPA has been reviewing new chemicals over the last two years, based on our scrutiny of each such decision.  Read More »

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While harder to discern, another EPA risk evaluation severely understates risk, this time for methylene chloride

Richard Denison, Ph.D., is a Lead Senior Scientist.

When EPA released the draft of its risk evaluation for methylene chloride at the end of last month, some were surprised that EPA had identified numerous unreasonable risks presented under a variety of the chemical’s conditions of use.

In an earlier post, EDF provided some context, noting how dangerous the chemical is and raising initial concerns that EPA was once again excluding known uses and exposures, making unsupported assumptions, and applying inappropriate risk benchmarks that were once again leading it to significantly understate the actual risks posed by methylene chloride.

Four weeks later, EDF has confirmed these concerns in spades.  Last night we filed 84 pages of comments on the draft risk evaluation, for consideration by EPA’s Scientific Advisory Committee on Chemicals (SACC), which will meet next week to peer review the draft.

EDF’s deep dive into the draft demonstrates that EPA has employed a host of unwarranted and unsupported assumptions and methodological approaches that lead it to either avoid identifying unreasonable risk when it should have, or to understate the extent and magnitude of the unreasonable risks it did identify.  Below we summarize some of the major concerns, which are addressed in detail in our comments.  Read More »

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Illinois poised to strictly limit partial lead service line replacement: How does it compare to Michigan and proposed EPA rules?

Tom Neltner, J.D., Chemicals Policy Director and Lindsay McCormick, Program Manager

Illinois is poised to be the second state in the country to strictly limit the practice of partially replacing lead service lines (LSL). Partially – rather than fully – replacing these lines that connect the drinking water main under the street to homes can significantly increase lead levels in drinking water for months and does not reliably reduce lead levels over time. Last week, the Illinois Department of Public Health (IDPH) released amendments to the Illinois Plumbing Code that include significant restrictions on partial LSL replacements. If the state’s legislative oversight committee for rulemaking does not object, the agency can finalize the rule.

If adopted, the changes would set the stage for all LSLs and galvanized service lines in the state to eventually be fully replaced. The changes are significant because the Illinois has an estimated 679,000 LSLs, by far the most in the country, as well as 60,000 galvanized service lines, and an additional 1.07 million service lines of unknown material that may be lead.

Michigan, with its estimated 460,000 LSLs, took a similar action in June 2018 when it strengthened its version of Environmental Protection Agency’s (EPA) Lead and Copper Rule (LCR). However, Michigan’s rule applies only to public water systems (PWS). In contrast, Illinois’s planned revisions apply to anyone who alters a service line including both PWSs and licensed plumbers.

In October, EPA proposed revisions to the LCR. However, unlike Michigan and Illinois, EPA’s proposed rule would continue to allow PWSs to conduct partial replacements where the property owner is unwilling or unable to pay the cost for the portion not owned by the PWS.

Read More »

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Time for a safer food supply: The legal challenge to FDA’s GRAS Rule

Tom Neltner, J.D.Chemicals Policy Director, Environmental Defense Fund

This blog initially was published as a guest column in Chemical Watch on September 9, 2019. After publication, FDA filed its reply brief to the plaintiff’s August 23, 2019 brief. The briefings are complete and the case awaits a decision by the judge.

Litigation is a time-consuming and often inefficient means to fix a broken regulatory system. However, when there is a fundamental disagreement about a regulatory agency’s responsibilities under the law, it is an essential option. Such is the case with the “Generally Recognized as Safe” (GRAS) exemption from the requirement for pre-market approval of food additives in the Federal Food, Drug, and Cosmetic Act (FFDCA). The Food and Drug Administration (FDA) interprets this exemption as allowing companies to determine whether a substance’s use is GRAS in secret without any notice to the agency.

Next year, I anticipate a federal district court will make a final decision on a lawsuit[1] challenging the FDA’s 2016 GRAS Rule that formalized the agency’s broad interpretation of the exemption and its narrow interpretation of its responsibilities under the FFDCA to “protect the public health by ensuring that . . . foods are safe, wholesome, sanitary, and properly labeled . . . .” (21 U.S.C. §393(b)). It would come a decade after the U.S. Government Accountability Office (GAO), the independent, nonpartisan agency that works for Congress, concluded that “FDA’s oversight process does not ensure the safety of all new GRAS determinations.” The GRAS Rule does little to address the shortcomings described by GAO.

Environmental Defense Fund (EDF), represented by Earthjustice, and the Center for Food Safety (CFS) are the plaintiffs in the lawsuit asking the court to declare the GRAS Rule unlawful and vacate the rule. On August 23, we filed with the court our response to the agency’s brief on both parties’ motions for summary judgment. FDA is expected to file a reply in September. Based on these briefs, the court may order oral arguments before making a decision.

Read More »

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EPA’s scientific peer reviewers don’t mince words in blasting its 1,4-dioxane and HBCD risk evaluations

Richard Denison, Ph.D., is a Lead Senior Scientist.

Late Friday is getting to be a popular time for the toxics office at the Environmental Protection Agency (EPA) to publicly release the peer review reports of its Scientific Advisory Committee on Chemicals (SACC).

As EPA did for the Committee’s peer review report on the agency’s first draft risk evaluation under the Toxic Substances Control Act (TSCA), EPA quietly posted sometime quite late last Friday the SACC’s reports on the next two chemicals:  the likely carcinogenic solvent 1,4-dioxane and the developmentally toxic flame retardant hexabromocyclododecane (HBCD).

Even a quick read of the Executive Summaries of those reports amply illustrates why EPA sought to bury them.  I’ll focus here on 1,4-dioxane.

The SACC did note that the content and organization of this draft risk evaluation was “much improved” over the first one for Pigment Violet 29.  So much for the good news; things went downhill from there for EPA.  Read More »

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EPA’s just-released methylene chloride draft risk evaluation: Some important context

Richard Denison, Ph.D., is a Lead Senior Scientist.

After more than a month’s delay, EPA today released its draft risk evaluation for methylene chloride.  Running to 725 pages (not counting more than a dozen supplemental files), it will take some time to digest.  But here are some initial observations that provide context for those of you who will be looking closer.

First, methylene chloride is a very nasty chemical.  It has killed a lot of people.  It causes cancer.  Short- and long-term exposure to it is tied to liver effects, immune system effects, nervous system effects, and reproductive/developmental effects.

So it shouldn’t be surprising that EPA’s draft – even coming from an administration not known to be overly worried about the risks of chemicals – has found that most industrial, commercial and consumer uses of methylene chloride present unreasonable risks.

For example, EPA found that workers using methylene chloride-based paint strippers face high risks.  Of course, we knew that already:  EPA identified those risks more than five years ago, and proposed to ban those uses.  This EPA decided it had to do it all over again – which means that thousands of workers have continued to be unnecessarily exposed to this deadly chemical.  And it will be even more years before we get back to where we were before EPA took its mulligan.

So the good news is that EPA seems to be acknowledging that methylene chloride presents high enough risks to warrant regulation under the Toxic Substances Control Act (TSCA).

The bad news is that EPA is dramatically underestimating the magnitude of methylene chloride’s risks – by pulling the same tricks it has for other chemicals among the first 10 it is evaluating under TSCA:

  • EPA once again ignores all exposures and risks to the general population by falsely assuming those exposures and risks are eliminated by actions it has taken or could take under other laws. That means ignoring over 4 million pounds of methylene chloride annually released to air, water and land.  See this backgrounder for the details and why this EPA assumption about methylene chloride is deeply flawed.
  • EPA once again grossly understates risks to workers:
    • EPA assumes that workers will always wear fully effective personal protective equipment (respirators and gloves) to make many of the risks it identifies go away – and to grossly understate the magnitude of the unreasonable risks it does find.
    • EPA once again finds a cancer risk to workers unreasonable only if it exceeds a level of 1 in 10,000 – which is 100 times higher a risk than warrants regulation under TSCA to protect workers and other vulnerable subpopulations.
    • For occupational non-users (ONUs), EPA has once again failed to identify unreasonable risks for the most highly exposed, and hence most vulnerable, workers unless it finds that the majority of workers also face unreasonable risks.

These are just a few initial observations based on our reading of EPA’s opus so far.

So while it’s somewhat encouraging that this new draft risk evaluation has found many more risks than previous drafts, we can already tell the draft falls far short of adequately describing the risks presented by methylene chloride.

Stay tuned.

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