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Concord: Ash/Debris Cleanup Advisory


Last updated: April 24, 2018, 9:41 am

The large structure fire in Concord consisted primarily of construction materials (predominately wood). Residents should avoid direct contact and inhalation of ash/debris that was produced by the fire. Residents may use a mild soap and water to clean up ash/debris. To minimize dust generation, residents should consider lightly dampening ash/debris prior to commencing sweeping activities. Swept up ash/debris may be placed in a standard household trash receptacle. Any towels or cleaning materials should be rinsed in a sink that drains to a sanitation sewer. Residents should avoid washing or sweeping ash/debris into storm drains, as this will result in pollution accumulating in nearby creeks and rivers.

RMP - Shell Chemical

Martinez, California


The Shell Chemical Plant consists of two main batch processes: Ethylene Oxide (EO) Catalyst and RM-17. The EO Catalyst Process produces a silver-based catalyst that is sold to industrial customers that convert hydrocarbons to ethylene oxide. A specially formulated impregnating solution is produced at the Plant and absorbed onto carrier rings to make the EO Catalyst products. No CalARP/RMP regulated materials are used to produce RM-17. Ethylenediamine is used to produce the EO catalysts.

For additional information regarding this facility's operations and most recent audit results, please view the Audit Summaries | Spanish (PDF).

Regulated Substances Subject to CalARP/Federal RMP/ISO:

Regulated Substances Program Level CalARP Regulated Federal RMP Regulated ISO Regulated
Ethylenediamine (PDF) 3 yes yes no