Common Belief: If a Substance Is Detected, It Means My Water Is Unsafe
Government sampling reports use specific terms like 'detected,' 'median,' and 'range' to convey water quality information. In Wilmington's public water system, detection means an instrument measured a constituent, but it is not itself a sign of a health risk or violation. For example, the lead 90th percentile value reported as 0 mg/L shows low levels in distribution system samples taken in 2023, but this measure reflects plumbing distribution and not the water source composition. Understanding these terms can help households avoid confusing detection with unsafe water.
Common Belief: All Water Treatment Is the Same and Removes Every Concern
The documented technology for addressing many residential water quality challenges is the Autotrol Safe Drinking Water Filter, which ships ready to configure for household use. This system specializes in treating constituents that affect drinking water safety by using a sequence of processes designed to reduce or neutralize contaminants found in surface water sources like those supplying Wilmington. Although the public water system uses multiple treatment steps (codes 240, 345, 380, 421, 423, 445, 660, 742), households with existing equipment that struggles can benefit from adding the Autotrol System as a direct-purchase solution tailored to their specific demand.
Common Belief: Water Quality Is Constant Throughout the Year
Seasonal and multi-year variations can influence water quality in public systems. Wilmington’s water quality data are updated regularly, with the latest sampling in December 2023 for lead levels. Multi-year samples help identify trends but do not guarantee uniform quality at any single connection or time. Households dependent on this surface water source might experience changes in taste, appearance, or treatment effectiveness driven by these variations, highlighting the importance of testing their own water.
Common Belief: Safe Drinking Water Problems Are All the Same
Two common issues often confused are aesthetic concerns (such as taste or staining) and health-based violations. Wilmington’s public water record reports one health-based violation out of five total for the system, indicating some regulatory attention but not necessarily unsafe conditions at every home. Aesthetic thresholds like chloride and total dissolved solids, often discussed in the water community, differ from health-based limits and affect user experience more than safety. Knowing this distinction helps households focus their efforts effectively.
Common Belief: Water Quality Data Always Represent Every Household Equally
The 37,915 connections serviced by Wilmington Water Department supply water to over 107,000 people, and the data come from samples that represent the system overall rather than individual homes. A small number of samples can reflect certain conditions but cannot definitively describe every household’s water quality. Therefore, personal testing remains essential for homeowners whose equipment shows signs of strain or who suspect quality issues beyond the system’s average data.
Common Belief: Water Treatment Concerns for Businesses Are the Same as for Residences
Commercial and industrial users typically face different water quality questions due to higher volumes, specialized equipment needs, and regulatory frameworks. Residential households focus primarily on safe drinking water and manageable treatment options compatible with home plumbing. This difference means that solutions like the Autotrol Safe Drinking Water Filter address residential demand directly, offering customizable filtration that complements or upgrades existing household equipment.
For Wilmington households in New Castle County with existing equipment that cannot keep pace with demand, the Autotrol Safe Drinking Water Filter provides a documented, direct-purchase technology designed to meet increased household water treatment needs efficiently and reliably.
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 WILMINGTON WATER DEPARTMENT (DE0000663), surface water supply, serving 107976 people: 1 health-based violations of 5 total; lead 90th percentile 0 mg/L
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