Understanding 'Detected', 'Median', and 'Range' in Beverly’s Public Water Records
When reviewing a laboratory test report or government sampling data for chloramine in your area, you will encounter terms like 'detected', 'median', and 'range'. 'Detected' means that instruments have measured the presence of chloramine in some samples. 'Median' is the middle value of all sampled data points, giving an idea of a typical measurement. 'Range' describes the spread from the lowest to highest measured chloramine levels across all samples. These terms reflect measurements made at the system level—not at individual households.
What to Write Down Before Considering Treatment Options
Before considering treatment, note that the Salem and Beverly Water Supply Board system serving Beverly uses surface water sources and has no EPA health-based violations on record. It serves over 90,000 people with advanced treatment processes documented by EPA codes. However, no report can specify the exact chloramine concentration in your home without a dedicated water test at your tap or point of entry. To make informed treatment decisions, you should have your household water tested specifically for chloramine concentration. This test will reveal your home’s actual chloramine levels, distinct from the municipal system data.
How the C-Series Chloramine (City Water) Filter Works to Address Chloramine
The C-Series System is specially designed to reduce chloramine from municipal water supplies like Beverly’s. It uses a filtration technology documented to neutralize chloramine by chemically breaking it down and removing its components. This process helps reduce chloramine-related taste, odor, and water quality concerns that some residents seek to mitigate. The system ships ready to configure and can be integrated with household plumbing to treat water where chloramine presence is confirmed.
Why Aesthetic Secondary Standards Differ from Health-Based Limits for Chloramine
Aesthetic secondary standards address qualities like taste, odor, and staining potential of water, rather than safety or health. Chloramine is often monitored with these considerations in mind because it can affect water palatability and interact with plumbing materials. Federal health-based limits, however, concern substances directly linked to health risks. For chloramine, Beverly’s water system record does not show any health-based violation, indicating that the chloramine levels detected comply with safety requirements and do not pose documented health concerns at the system level.
Interpreting the Measured Chloramine Range Against Federal Standards
The Salem and Beverly Water Supply Board’s records show no health-based violations related to chloramine. This does not mean chloramine is absent—it means detected levels are within federal health limits. The range of chloramine concentrations found through surface water treatment protocols varies, but is monitored to remain below thresholds that would trigger health concerns. Because aesthetic standards are separate, some residents may still perceive taste or odor differences despite compliance with health rules. These taste or odor concerns are valid but distinct from safety issues.
Example: How a Beverly Homeowner Might Read the Chloramine Sampling Data
Suppose a homeowner reviews the Salem and Beverly Water Supply Board’s chloramine sampling record showing a detected median level with a certain range. This means that among many samples, the typical chloramine level lies near the median, but some samples measure lower or higher within the range. Without a tap-specific test, the homeowner cannot know their exact home level but sees that the system maintains chloramine within regulated health limits. This insight helps decide whether to seek chloramine removal treatment tailored to household conditions.
The Essential Test to Clarify Your Home's Chloramine Situation
To resolve uncertainty, order a water test measuring chloramine concentration directly at your household point of use. This result will confirm whether chloramine removal is advisable for your home. Only with this specific test can you judge the need for solutions like the C-Series Chloramine (City Water) Filter with confidence. Knowing your home’s actual water chemistry ensures treatment addresses your real situation, avoiding unnecessary or ineffective measures.
Where this information comes from
Source: EPA SDWIS public water system record. Sampled 2025-12-31. These figures describe the public water system's record, not the plumbing inside any individual building.
On record: EPA SDWIS record for SALEM AND BEVERLY WATER SUPPLY BOARD (MA3030001), surface water supply, serving 90330 people: 0 health-based violations of 15 total; lead 90th percentile 0.0017 mg/L