Autotrol Chloramine (City Water) Filter

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

The Des Moines Water Works system serves roughly 246,055 people through about 94,000 connections. Water quality figures available come from multiple samples taken within this extensive public water system, which uses surface water sources. The data represents composite results reflecting the system’s water rather than any individual household's water. It is important to remember that these system-wide figures do not substitute for specific testing at a single home, which requires separate analysis.

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

Certified laboratory tests for chloramine typically measure the combined concentration of monochloramine and related chloramine compounds present in water samples. These measurements are given in milligrams per liter and indicate the presence of chloramine as a disinfectant residual. Such results inform about chloramine’s role in maintaining microbial control within the distribution system but do not alone imply a health hazard or safety concern. Understanding these results involves looking at concentrations relative to treatment objectives and local water chemistry, not just the numeric value.

The Role of Plumbing Material and Age, Separate From the Source Water

Water quality at the tap can be influenced by the materials and age of household plumbing independently from the water treatment system’s source and distribution. Corrosion or degradation of pipes and fixtures may interact with chloramine residuals, sometimes causing taste, odor, or staining issues. These plumbing-related factors do not reflect the source water quality reported for the Des Moines system but do affect the water characteristics experienced within a household, especially when existing water treatment equipment no longer functions as intended.

How Chloramine Enters Groundwater or the Distribution System in This Region

In Des Moines, the municipal water system draws from surface water sources and applies chloramine as a secondary disinfectant to control microbial growth within the distribution network. Chloramine is formed by combining chlorine with ammonia and is maintained as a stable disinfectant throughout the system. It is not naturally occurring in groundwater. This water treatment approach is documented in the system's treatment codes, reflecting a multistage process designed for microbial safety and distribution stability across Polk County.

What the Measured Range Means Against the Relevant Federal Standard, and What It Does Not Mean

The Des Moines Water Works system's public record shows chloramine use consistent with federal regulations for disinfectant residuals. There is one EPA health-based violation unrelated to chloramine in the system’s history, and the lead 90th percentile in distribution plumbing samples is zero mg/L as of the latest reporting. These facts indicate regulatory compliance regarding microbial control and lead monitoring. The presence of chloramine at levels used in the network does not equate to unsafe water or a violation by itself. Instead, chloramine’s role is part of maintaining water quality, taste, and odor within the system's design parameters.

How Seasonal or Multi-Year Variation Shows in the Record (Dates and Ranges Given)

Water quality data for Des Moines includes samples taken over months and years, with chloramine residuals maintained year-round as part of the treatment process. The EPA data reflects treatments and monitoring up to late 2024. Seasonal changes in water chemistry, source water quality, and treatment adjustments can cause small fluctuations in chloramine levels, but the system consistently meets disinfectant requirements. Such variations are typical and expected in surface water treatment systems serving urban populations.

What You Should NOT Conclude from Area Data

Area-wide government data about chloramine use in the Des Moines Water Works system does not specify levels in any individual's household water. Detection of chloramine in the system is not a violation or an indication that household water is unsafe. Individual household water quality depends on local plumbing conditions and any treatment equipment in use. To understand your home's water chemistry accurately after equipment failure, testing your specific water sample is essential. For ongoing management of chloramine in municipal water, the Autotrol Chloramine (City Water) Filter ships ready to configure and can help household water systems mitigate chloramine-related concerns effectively.

Where this information comes from

Source: EPA SDWIS public water system record. Sampled 2024-12-31. These figures describe the public water system's record, not the plumbing inside any individual building.

On record: EPA SDWIS record for DES MOINES WATER WORKS (IA7727031), surface water supply, serving 246055 people: 1 health-based violations of 3 total; lead 90th percentile 0 mg/L