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In San Marcos, wells typically reach depths of 100-300 feet to access the fractured crystalline rock aquifer. The local geology consists of fractured granite bedrock with decomposed granite overlay, which affects drilling methods and well performance.
Common issues we see in San Marcos: low yield wells due to fractured rock, seasonal water table fluctuation. With 12-18 inches annually rainfall, proper well maintenance is essential for reliable water supply.
Water testing in San Marcos focuses on contaminants common to the fractured crystalline rock aquifer, including low yield wells due to fractured rock. We recommend annual testing to monitor for changes in water quality.
Typical homes: 1970s-2010s development, mix of suburban and rural
Common home styles: Suburban tract homes, Rural properties in hills
Average lot size: 0.25-5 acres
What this means for your well: Hillside and rural properties often have 25-40 year old wells
Don't see your neighborhood? We serve all of San Marcos and surrounding areas!
Our nearest office is in Ramona — 25 minutes from our Ramona office.
"Found elevated arsenic levels. Glad we tested before the baby arrived. They recommended the right filter."
— Verified Customer
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Call us now for a free estimate on water testing in San Marcos
(760) 463-0493