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For expert assistance when it comes to septic system design and planning, as well as soil testing services, trust none other than Sonde Geological Services. With years of experience and a refined focus on providing invaluable information to our customers, we take pride in offering you a level of customer satisfaction that’s unparalleled. We’re located in Shingle Springs, CA, however we’re pleased to serve residential and commercial clients throughout El Dorado County, CA and beyond, up to 100 miles away. For more information about the services we offer or how we can leverage them to assist you, please fill out the form below.