Laboratory Test Reports: What's Actually Listed for Your Drinking Water
When reviewing a laboratory test report for water from the Artesian Water Company public system serving Bear, Hockessin, and the wider New Castle County area, the data is focused on the system's distributed water quality rather than individual household plumbing. For example, lead levels are recorded as a 90th percentile concentration in the distribution system samples, here at 0.001 mg/L as of December 31, 2026. This figure reflects sampling results from within the system’s plumbing network, not a source-water measurement. Such a report lists measured concentrations, but it does not diagnose what any one household's water contains without a dedicated private test.
The Role of Plumbing Material and Age, Separate from the Source Water
In the New Castle County public water system, source water comes from surface supplies and undergoes multiple treatment processes. However, water quality at your tap may be influenced by the materials and age of your home’s plumbing. Metals like lead can enter water through older pipes and solder, unrelated to source water conditions. The public water system’s lead 90th percentile data encompasses distribution plumbing effects but individual household plumbing can differ significantly, necessitating private testing to isolate plumbing-related contaminants.
How Treated Water Differs at the Tap Once the Documented Technology Is in Place
Water treatment via the C-Series Whole-Home + Drinking Combo System addresses both whole-home water quality and drinking water needs. This system, with a grain capacity of 32,000, conditions water to enhance taste and reduce troublesome constituents that can arise from aging pipes or residual minerals, improving overall water quality at every faucet. After configuring this system, water users often notice noticeable improvements in clarity and taste, reflecting treatment beyond municipal processing.
What to Write Down Before Asking Anyone for Treatment Advice
- The name and ID of your public water system – here, Artesian Water Company, DE0000552.
- Recent laboratory test results from your household water, focusing on contaminants of concern such as lead.
- Age and known materials of your home’s plumbing, if available.
- Any taste, color, or staining issues observed in your water.
- Records of any prior treatment devices or water quality changes detected over time.
What Questions a Commercial or Industrial Operator Adds That a Household Does Not
While households typically focus on taste, clarity, and plumbing safety, commercial or industrial operators may ask additional questions such as flow rate consistency, scale build-up impact on equipment, and compliance with specific regulatory standards for processes. Operators often require detailed system performance data and may evaluate treatment options based on operational downtime or water use intensity, concerns less common for residential users in New Castle County.
How the Constituent Enters Groundwater or the Distribution System in This Region
In this region, the public water system's source is surface water that undergoes multiple treatments including sedimentation and filtration processes before distribution. Constituents like lead detected in the system stem mainly from corrosion or leaching within the distribution pipes and household plumbing rather than from the source water itself. The multiple treatment codes on record reflect efforts to manage various water quality aspects before delivery.
What 'Detected', 'Median' and 'Range' Mean in the Sampling Record on This Page
In EPA and public water system records, 'detected' means an instrument measured a constituent at or above a certain level within the system samples. This does not mean the concentration is unsafe or violates any limits. 'Median' represents the middle value among samples, helping characterize typical concentrations, while 'range' shows minimum and maximum detected levels across sampling events. These terms provide context but cannot substitute for specific household water tests.
What You Should NOT Conclude from Area Data
Do not conclude your household water matches the system-wide data or that any detected constituent is a violation or a safety concern without testing your own water. The area’s public water system has recorded some EPA health-based violations, but these do not automatically apply to every connection or tap. The source water is surface-derived and treated extensively, so recognizing whether issues arise from your home’s plumbing versus the distribution system requires separate testing. For whole-home drinking water concerns, consider private water quality analysis and configuring a system like the C-Series Whole-Home + Drinking Combo System to address your specific water needs effectively.
Where this information comes from
Source: EPA SDWIS public water system record. Sampled 2026-12-31. These figures describe the public water system's record, not the plumbing inside any individual building.
On record: EPA SDWIS record for ARTESIAN WATER COMPANY (DE0000552), surface water supply, serving 231114 people: 4 health-based violations of 7 total; lead 90th percentile 0.001 mg/L