Name
Approach to Management of Water Resources for Conservation and Regulatory Compliance
Date & Time
Tuesday, September 14, 2021, 10:30 AM - 11:00 AM
Description

Introduction and background: Olinda Alpha Landfill is owned and operated by OC Waste & Recycling; a County of Orange, California department. Encompassing 565 acres and a waste footprint of 453 acres, the active landfill receives an average of 7,000 tons of local and imported waste per day. Increasingly Stringent Industrial General Permit water discharge standards: Regulations, extended periods of drought conditions, and rising costs of potable water in recent years has placed unanticipated pressure on large facilities such as regional landfills to reduce or otherwise conserve potable water and to treat or reclaim stormwater surface runoff for onsite use. Olinda has invested in a new concrete lined water detention basin and will be incorporating limited treatment of the stormwater surface runoff in order to minimize detention times and maximize re-use of captured surface runoff. Power plant water demands: Co-located within the landfill is a Landfill Gas (LFG) To Energy (LFGTE) power production plant. The 32-megawatt co-gen (gas turbine with HRSG) plant operates symbiotically with the landfill; utilizing the LFG produced from decomposing trash and converting it to electricity to service local consumers. One disadvantage of this otherwise efficient operation is its high demand for potable or high quality water for its cooling systems. As a result, the landfill and power plan combined are listed as one of the top three consumers of potable water in its host city, requiring the facility as a whole to reduce its consumption significantly. The power plant operator is vigorously exploring new treatment systems in order to reuse its waste water stream thereby offsetting the demand for potable water.