How the C-Series System Handles Lead in Household Water
Removes lead particles from water at the tap
The C-Series Lead in Water Filter uses specialized media to reduce lead concentrations in water as it flows through the filtration system. This treatment targets lead ions and particulate lead present in the water distributed to residential faucets.
Neutralizes lead’s harmful effects through ion exchange technology
Besides physical filtration, the system uses ion exchange methods to bind and remove dissolved lead compounds, helping reduce lead availability in treated water.
Ships ready to configure for household water lines
Designed for easy setup by the homeowner, the C-Series system arrives prepared for connection to household water supplies without requiring professional assistance.
Interpreting Lead Sampling Numbers and Their Scope
The 90th percentile lead value from Brockton water samples was 0.004 mg/L as of December 2023
This figure reflects the concentration at which 90% of water samples collected from household plumbing tested below or equal to 0.004 milligrams per liter, based on distribution system sampling—not the source water.
Sampling reflects the city-wide distribution system, not individual household plumbing
The measurement aggregates data from multiple sample points across Brockton’s water system, representing the broader distribution but not specific conditions of any single home’s water.
A limited number of samples establishes this data point
While the 90th percentile is statistically significant, it is based on discrete sample counts dictated by EPA rules and may not capture localized or transient fluctuations in lead levels.
Differences Between Public Water Records and Individual Home Testing
Public water records report system-wide lead sampling, not private well or tap water tests
Brockton’s reported lead levels come from samples collected at points representing the distribution system rather than individual homes. Personal water quality can vary depending on household plumbing materials and conditions.
To know your household’s specific lead level, arrange independent water testing
Only a test of water drawn directly from your household tap can confirm the exact lead concentration affecting your family, since plumbing can influence lead presence even if the system average is low.
EPA records reflect health-based violations separately from lead sample data
Brockton’s water department has experienced five health-based violations overall, but the lead 90th percentile measured here does not by itself indicate a current violation or unsafe condition.
Comparing Brockton’s Lead Data Within Plymouth County and Beyond
Brockton’s lead 90th percentile value is one data point within Plymouth County’s public water systems
Other systems in the region may report different lead statistics based on source water, treatment methods, and sample timing, illustrating natural variation in water quality.
A single low or moderate lead measure does not guarantee all Plymouth County households share the same water quality
Because local plumbing affects lead, comparisons should consider the context of water sources and system treatments rather than relying solely on public system averages.
Using data for informed decisions without assuming identical home water conditions
Comparisons between municipal systems provide background but should be complemented by household testing where lead concerns persist.
How Water Changes at the Tap with the C-Series Lead in Water Filter
The filter reduces lead levels regardless of system-wide averages
Once the C-Series Filter is added at the household point of use, it actively removes lead before water reaches faucets, providing an extra layer of protection.
Water taste and appearance may improve due to reduction of lead and other metallic traces
By lowering lead and related compounds, the filter can help reduce metallic tastes or discoloration sometimes caused by plumbing corrosion.
Maintenance according to guidelines ensures continued effectiveness
Periodic replacement of filter media maintains lead reduction performance over time, supporting safe drinking water for residents.
Understanding Brockton’s public water lead data helps clarify the difference between system-wide sampling and household water quality. Testing your own water combined with using the C-Series Lead in Water Filter offers a clear path to addressing potential lead concerns at the point of use.
Where this information comes from
Source: EPA SDWIS public water system record. Sampled 2023-12-31. These figures describe the public water system's record, not the plumbing inside any individual building.
On record: EPA SDWIS record for BROCKTON WATER DEPARTMENT (MA4044000), surface water supply, serving 105788 people: 5 health-based violations of 7 total; lead 90th percentile 0.004 mg/L