Facility Tours The Encina Water Pollution Control Facility is located on a 25-acre site wedged between the sandy beaches of south Carlsbad and busy Interstate 5. The modern facility treats and disposes of wastewater collected from its 125 square mile service area, stretching across some of the fastest growing communities of northern San Diego County. Facility tours can be arranged by calling (760) 438-3941 Program Information Biosolids EMS Brochure Biosolids EMS Verification Audit Report – 8/10/05 2005 Annual Biosolids Program Performance Report Interim Audit Report – 9/26/06 Answers to questions about Biosolids Answers to questions about Odors and Groundwater Answers to questions about Biosolids Monitoring Answers to question about Biosolids - Pathogens & Safety Concerns Interested Parties Contact us at biosolidsems@encinajpa.com and request to be added to the Interested Parties List to receive Biosolids EMS program correspondence.