Local Water Quality
PFAS Forever Chemicals in Clermont, FL Water — What Lake County Residents Need to Know

Clermont, Florida, is one of the state's most scenically distinctive communities — perched on the Lake Wales Ridge with rolling hills (rare in flat Florida) and surrounded by the chain-of-lakes that define west Lake County's geography. The same limestone karst terrain that makes Clermont beautiful also shapes its water quality story, including the growing national conversation about PFAS "forever chemicals."
Where Clermont's Water Comes From
The City of Clermont's water system draws from the Floridan Aquifer, with water traveling through the porous limestone bedrock of the Ridge before being pumped to residents. Lake County's water is treated with chloramines and typically measures 10–18 GPG in hardness — somewhat softer than counties to the south in the phosphate belt, but still significantly hard by national standards.
The aquifer system underlying Clermont connects to a broader regional groundwater flow. The Lake Wales Ridge contains many sinkholes and karst features that allow surface water and contaminants to reach the aquifer more directly than in areas with thick clay confining layers. This natural permeability is both what makes the aquifer so productive and what makes it potentially vulnerable to contamination from surface sources.
PFAS Sources of Concern in the Clermont Area
PFAS enter groundwater through several pathways relevant to the Clermont region:
Military and aviation history: Florida has numerous military installations and civilian airports where PFAS-containing aqueous film-forming foam (AFFF) was used for fire training and emergency response for decades. These fluorochemicals are highly mobile in groundwater and can travel significant distances from their source. The Central Florida region's military history and aviation presence create background PFAS pressure on the regional aquifer.
Agricultural chemicals: Lake County's agriculture — including citrus groves, nurseries, and vegetable production — involves the use of various pesticide and fertilizer compounds. Some PFAS-related compounds have been detected as components or contaminants in certain agricultural applications.
Consumer product runoff: PFAS from non-stick cookware, stain-resistant textiles, food packaging, and other consumer products enter wastewater systems and, over time, find their way into groundwater through treated effluent and stormwater. As Clermont grows rapidly from a small city to a substantial community, this pathway becomes increasingly relevant.
The Lake Wales Ridge's Karst Connection
The karst geology of the Lake Wales Ridge presents a specific PFAS concern that is somewhat unique to Clermont and similar communities along the Ridge. Where sinkholes, caves, and karst windows allow relatively direct connection between surface water and the aquifer, contaminants can bypass the natural filtration that thick clay confining layers would otherwise provide. Clermont-area residents, particularly those whose properties are near sinkholes or surface water features, may have heightened reason to consider PFAS testing of their private wells or to install point-of-use filtration on municipal water.
EPA Standards and What They Mean for Clermont
The EPA's 2024 PFAS drinking water standards set limits of 4 ppt for PFOA and PFOS — extraordinarily low levels that require advanced testing to even detect. City of Clermont's utility is subject to federal monitoring requirements, and Clermont residents can access their utility's Consumer Confidence Report (CCR) for the most recent testing data. However, the CCR provides a snapshot, not continuous monitoring, and it may not capture fluctuations tied to seasonal groundwater changes or isolated contamination events.
Protecting Your Household in Clermont
The practical protection strategy for Clermont residents follows the same approach that's effective anywhere PFAS are a concern:
Point-of-use reverse osmosis: An under-sink RO system at the kitchen tap removes PFOA, PFOS, and related PFAS compounds at 90–99% efficiency. For a community like Clermont where many residents drink from the tap and use tap water for cooking, this is the highest-value filtration investment for PFAS protection. RO membranes also address other Clermont water concerns — hardness, chloramine byproducts, and any trace agricultural contaminants like nitrates.
NSF 58-certified activated carbon: Whole-house or point-of-use carbon filters carrying the NSF/ANSI 58 certification for PFAS reduction provide meaningful protection against PFOA and PFOS. These are a good complement or alternative to RO for households that want broader coverage.
Clermont is a growing community with a relatively young housing stock — most recently built homes can easily accommodate under-sink filtration installation, making PFAS protection accessible and practical for the area's residents.