Autotrol VOCs & Industrial Chemicals Filter

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Government Sample Results for VOCs in Dover's Public Water System

VOCs detected and not detected in the Dover Water Department system

• HCFC-22 was detected in 2 of 28 tests at levels from 0.08 to 0.26 micrograms per liter (µg/L), or parts per billion (ppb).
• Halon 1011 was detected once at 0.064 µg/L (ppb).
• No detections above reporting levels for 1,1-dichloroethane, chloromethane, bromomethane, 1,3-butadiene, or MTBE.
• These findings come from the EPA’s Unregulated Contaminant Monitoring Rule (UCMR3) sampling from 2013 to 2015 for the community water system serving Dover.

Clarifying the significance of detections in municipal groundwater

• None of the measured VOC levels have a federal maximum contaminant level (MCL); detections do not indicate violations or unsafe drinking water.
• The municipal record includes one EPA health-based violation unrelated to VOCs, showing the system meets safety requirements for these compounds.

Why Granular Activated Carbon (GAC) Beds Focus on Contact Time, Not Just Flow Rate

Contact time governs VOC removal efficiency

• Volatile organic compounds require sufficient exposure time within a GAC filter for adsorption to occur effectively.
• Faster flow reduces contact time, potentially diminishing the filter's ability to remove solvent compounds.
• GAC filter sizing is calculated to balance household water usage with the duration needed to capture VOCs.

Flow rate alone does not determine treatment success

• Households with high peak water use must have a capacity that maintains adequate contact time despite variable flows.

Differences Between Gasoline and Dry-Cleaning Solvent Releases in Groundwater

Gasoline-related VOCs tend to be volatile and can include hydrocarbons like MTBE, not detected here

• No detections of MTBE in the Dover system suggest no recent or significant gasoline solvent contamination in source groundwater.

Dry-cleaning solvents differ chemically and were not detected in this record

• Common dry-cleaning solvents monitored (chloromethane, bromomethane) showed no detections above reporting limits.

Water Quality at the Tap After Using the Documented Autotrol VOCs & Industrial Chemicals Filter

Treated water shows significant reduction in volatile organics

• The Autotrol System uses a GAC bed to adsorb volatile organics effectively.
• This results in improved water quality free from detected levels of HCFC-22 and Halon 1011 that were found in source water.

Improved odor and taste profile

• Absorption of solvent compounds by the filter can reduce subtle solvent-like tastes or odors sometimes associated with VOCs.

Which Household Symptoms May Indicate VOCs and Which Probably Do Not

Symptoms related to VOC presence

• Solvent-like tastes and odors in water could suggest VOC presence.
• Staining or corrosion is generally unrelated to these VOCs and reflects other water quality issues.

Symptoms unlikely related to VOC contamination

• Skin irritation or health complaints without confirmed VOC water measurements should be investigated separately.

Evaluating Treatment Capacity Versus Household Water Demand

Match filter capacity with daily household consumption

• The Autotrol VOCs & Industrial Chemicals Filter is sized to maintain contact time based on average and peak water use.
• Homeowners should consider their typical daily water volume when selecting a system.

Effectiveness depends on consistent flow control

• Maintaining flow rates within system design ensures ongoing VOC reduction efficiency.

Recommended Next Step: Laboratory Testing for Household VOC Concentrations

Because the EPA system record describes the public water system rather than individual households, the single essential test to clarify your water quality is a certified laboratory VOC analysis of your tap water.

This test measures the specific volatile organic compounds in your household supply, confirming the presence and levels of compounds such as HCFC-22 or Halon 1011, or the absence thereof.

With these results, you can confidently select an appropriate treatment solution like the Autotrol VOCs & Industrial Chemicals Filter to address your household water quality needs.

Where this information comes from

Source: EPA SDWIS public water system record. Sampled 2015-03-12. These figures describe the public water system's record, not the plumbing inside any individual building.

On record: EPA UCMR3 monitoring (2013-2015) for Dover Water Department (DE0000571), DE: 196 results across 7 listed contaminants, 3 detections above the reporting level; no federal MCL for these UCMR-listed VOCs