The public water system in Des Moines, serving Polk County, has undergone extensive testing for lead presence, serving approximately 246,055 people through 94,000 connections. According to the EPA's Safe Drinking Water Information System record for Des Moines Water Works (ID IA7727031), the lead 90th percentile value was 0 mg/L as of the end of 2024. This measure reflects the distribution system and plumbing, not the original surface water source. Although this result suggests very low lead levels overall, individual household water quality can vary widely due to internal plumbing materials and conditions.
If Your Household Notices Specific Plumbing or Water Signs
Lead presence in drinking water typically does not cause noticeable taste or odor changes. However, certain signs in your home's water can prompt a closer look:
- Do consider testing if you observe: water that is discolored, especially with a metallic or dull appearance; staining on sinks or fixtures that may suggest metal leaching; or plumbing components that are known to contain lead, especially in older homes.
- Do not assume lead presence if: water tastes normal, clear, and there are no staining or corrosion signs. Other common water quality issues unrelated to lead might cause color or odor changes.
If You Are Reviewing the Public Water System Data for Your Area
The recorded median lead concentration at the distribution level in Des Moines is reported as zero. This median indicates that at least half of the samples collected showed no measurable lead. The 90th percentile—used by regulators to understand upper-end exposure levels—also reads zero, illustrating that most samples tested are below the method detection level for lead after treatment and distribution.
Nevertheless, this data does not reflect water quality inside individual homes, where lead can enter water through old pipes, solder, or fixtures. Therefore, residents should consider direct testing of their household water if concerns arise.
If You Are Decoding the Terms Detected, Median, and Range in This Record
- Detected: Represents whether instruments measured any lead in a sample. Detection does not mean the level is harmful or legally problematic.
- Median: The middle value of all sample results. A zero median means at least half the samples had no detectable lead.
- Range: The full spread of values found during sampling. Although not specified here, the zero 90th percentile suggests the range likely does not include values that trigger regulatory concern.
If You Seek a Treatment Method That Addresses Potential Lead in Your Water
The Fleck Lead in Water Filter is a direct-purchase home water treatment option designed to reduce lead and improve water quality. This filter uses a Fleck System technology known for its effectiveness in targeting lead particles and ions, reducing their presence before water reaches your tap. It prepares to configure at home, allowing you to manage lead concerns without external service needs.
If You Wonder How to Maintain Your Water Treatment System
The Fleck Lead in Water Filter requires regular maintenance to sustain its lead removal performance. This includes periodic replacement of filter cartridges according to the manufacturer's guidelines and routine flushing to prevent buildup. Maintenance schedules vary based on household water use and local water quality but generally involve straightforward steps that homeowners can perform.
It is important not to interpret the Des Moines system's data as guaranteeing that every household's water is lead-free. The public water record reflects overall system performance, not individual plumbing conditions. To accurately assess your home's water, consider laboratory testing of your tap water for lead. This targeted approach helps determine if a treatment system like the Fleck Lead in Water Filter is appropriate for your household’s specific needs.
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
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