Identifying VOCs in Brunswick and Cumberland County: Understanding Groundwater Volatile Organics

This week, households in Brunswick and Topsham face a key choice: which class of water treatment is appropriate for volatile organic compounds (VOCs) that may be present in their groundwater source? Though the public water system has no health-based violations, understanding VOC profiles, seasonal plume movement, treatment capabilities, and testing details is important to make an informed decision.

How a Gasoline Release Differs From a Dry-Cleaning Release in What It Leaves in Groundwater

Volatile organic compounds (VOCs) include solvent compounds that arise from different sources like gasoline spills and dry-cleaning operations. Gasoline releases often contain compounds such as 1,1-dichloroethane and MTBE, while dry-cleaning solvents include others like chloromethane or bromomethane. The Brunswick/Topsham Water District’s federal monitoring between 2013 and 2015 found no detections of these VOCs above very low reporting levels: for example, 1,1-dichloroethane was not detected above 0.03 micrograms per liter (0.03 ppb), and MTBE was not detected above 5.0 micrograms per liter (5.0 ppb). While these detections indicate measurement sensitivity, they do not establish individual household water conditions or safety concerns.

How Seasonal Water-Table Changes Move a Solvent Plume Relative to a Well Screen

VOCs dissolved in groundwater form plumes whose position can shift throughout the year as water tables rise and fall. This movement affects how solvents relate to well screens, which draw groundwater for household use. In Brunswick and Topsham, seasonal variations in the water table can cause solvent plumes to move vertically, sometimes closer to or farther from the intake zones of wells. This dynamic means a single test provides a snapshot rather than a year-round picture, highlighting why periodic testing and an understanding of plume behavior are important for choosing the right treatment.

How the Documented Treatment Technology Removes or Neutralizes the Constituent

The Fleck VOCs & Industrial Chemicals Filter addresses volatile organics through a specialized system designed to reduce solvent compounds such as those monitored in the public water system record. This technology employs filtration media that adsorb volatile organics at contact points within the system, effectively reducing concentrations that pass through. Because contact time is crucial, the system is configured to optimize performance without compromising flow rate. This approach targets a broad class of VOCs rather than individual compounds, making it adaptable to variations in local groundwater conditions.

What the Reader Should Write Down Before Asking Anyone for Treatment Advice

Before requesting personalized treatment help, residents should note the following:

• The local water system name and ID: Brunswick/Topsham Water District, ME0090260.
• Any federal or state water quality reports available for their community.
• Whether they use groundwater or another source in their household supply.
• Any taste, odor, or staining issues experienced, which while not safety indicators, may relate to secondary water standards.
• Results from any private laboratory testing if performed, with detection levels included.

What a Certified Laboratory Test for This Constituent Reports and How to Read It

Laboratory reports for VOCs list detected chemicals by name with corresponding concentrations, typically in micrograms per liter (µg/L) or parts per billion (ppb). Reporting levels indicate the lowest concentration at which a chemical can be reliably detected by the method used. A result of “not detected” means the constituent’s concentration was below this threshold, not necessarily absent. Since EPA monitoring for Brunswick/Topsham shows no detections above reporting levels for VOCs like halon 1011 (0.06 µg/L) or HCFC-22 (0.08 µg/L), similar findings in private testing would align with these system-wide trends.

How Many Samples and Wells Stand Behind the Figures, and What a Small Sample Means

The EPA’s federal Unregulated Contaminant Monitoring Rule (UCMR3) data for Brunswick/Topsham comes from six sample rounds between 2002 and 2015, covering multiple VOCs near the wellheads serving over 18,800 customers. While six rounds and 7,545 connections provide broad coverage, they represent a sample of the total water served rather than every individual well or tap. A small number of samples limits certainty about localized conditions within a homeowner’s plumbing and highlights the need for specific well or tap testing if concerns arise.

In summary, households in Cumberland County’s Brunswick and Topsham communities considering VOC treatment must weigh differences in VOC sources, seasonal solvent plume movement, and system-wide monitoring results. The Fleck VOCs & Industrial Chemicals Filter provides a documented technology option aimed at reducing a broad spectrum of volatile organics. Testing your specific water source and noting community water records together guide the best choice for your household needs.

Where this information comes from

Source: EPA SDWIS public water system record. Sampled 2015-08-04. These figures describe the public water system's record, not the plumbing inside any individual building.

On record: EPA UCMR3 monitoring (2013-2015) for Brunswick/Topsham Water District (ME0090260), ME: 42 results across 7 listed contaminants, 0 detections above the reporting level; nothing detected above the method reporting level