Daniel Oldham, California Professional Land Surveyor 10091. A Central Coast native, Daniel grew up and still lives in Arroyo Grande. He began learning Surveying first hand while working closely with licensed Land Surveyors before becoming licensed himself. His passion for Surveying and wanting to continue to learn more has led to Oldham Land Surveys. When not surveying, Daniel is spending time with his lovely wife and 2 young children.