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The EBMUD RARE is designed to provide tertiary treatment of effluent from the West County Wastewater District in order to provide Chevron Refinery with water suitable for industrial process use. The treatment process will include micro filtration and reverse osmosis and will use aqueous ammonia which is a CalARP regulated material.

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

Regulated Substances Subject to CalARP/Federal RMP/ISO:
Regulated Substance Program Level CalARP Regulated Federal RMP Regulated ISO Regulated
Aqueous Ammonia (PDF) 2 yes yes no