CAO Hazard rules comments

In these comments to DEQ, CAAT repeats their verbal request from the November 18, 2019 Public Hearing on this subject for DEQ to revisit and revise the list of 26 Toxic Air Contaminants that are proposed to remain as Level 5 toxins, and thus not subject to a greater scrutiny as Level 3 toxins.

Diesel Particulate Matter needs to be treated as a toxin more subject to regulatory oversight by DEQ/OHA and mitigation by the polluter. Awhile back, our state of Oregon forgot to impose regulations on obsolete diesel engines, and the state became a dumping ground for those highly polluting diesel engines. A discrepancy was created that defined Oregon from the other West Coast states as one accepting of obsolete and polluting equipment. Polluters took advantage of this discrepancy and moved engines banned in other states here. This is a type of ‘toxin dumping’ that unscrupulous polluters often engage in. The effect of this is for the air and the people of Oregon to become subjected to dangerously high exposure levels of Diesel Particulate Matter. The result is that Diesel Particulate Matter air pollution imposed greater harm on the people of Oregon than adjacent states and markets. Please access […/summary-diesel-particulate-matter-…] for more information on the known dangers of Diesel Particulate Matter.

It is quite likely that other polluting industries will follow this pattern of ‘toxin dumping’ with chemicals that are under-regulated here, but regulated in nearby states. In particular, the proposed Level 5 toxins that are already included in California’s Proposition 65 regulatory framework and warning system, need to be revised as Level 3 pollutants to prevent this ‘toxin dumping.’

Below are some of these VOC’s, toxins, and pollutants that are regulated under California’s Proposition 65 but that are included in the proposed Oregon CAO Level 5 categorization:



Dichlorovis (DDVP)

Diethelylene glycol monoethyl ether



4,4’-Methylenedianiliene (and its dichloride)


Propylene glycol dinitrate

Silica, crystalline (respirable)


Vinyl bromide

Even if these toxins exist, or are created, at very low emissions inventory levels, given the history of Oregon as a dumping ground for obsolete and polluting diesel engines, it is likely that polluters will move production of these toxins to our State, engaging in ‘toxin dumping’ and the subsequent contamination and negative health effects, so as to escape regulatory mandates existing in other states, including California. CAO does not provide for an insurance penalty for paying for injury, mitigation, or spill clean-up so that burden would fall onto the people of Oregon.

With CAO, Oregon should seek to create a more stringent, comprehensive, and protective regulatory apparatus than exists in California (and certainly one that is not less so.) Given past Agency inadequacies, a rapidly growing population who expect a healthy and safe community, and the natural beauty and the need for continued sustainability of Oregon’s ecological systems and environment, CAO should regulate all contaminants currently regulated under California’s Proposition 65, and any existing Washington-state statutes, at a minimum.

In closing, the Risk Analysis behind CAO is predicated on insuring our states commitment to protecting the health of the state and air we breathe, and that insurance creates a liability that should not be the burden of the taxpaying public, but on the polluter instead. If CAO does not include a comprehensive regulatory strategy for, and built-in, actionable, sanctions of polluters, including a regulatory structure at least equal to neighboring states, then it becomes a toothless agent, a paper tiger, that has little overall impact or meaning, even though it purports to be a protective force.

With the changing dynamics of our State and the climate, it is imperative that DEQ take an aggressive leadership role in regulating polluters. No longer should the State allow her people, no matter how marginalized they may be, to become the recipient of known toxins from dangerous industries and their ‘toxin dumping.’ DEQ, OHA, and the other State Agencies need be our shield against dangerous toxins, including the chemicals and compounds listed above, from polluters who refuse to take responsibility for the damage they create.