Green Bay Water System Lead Sampling and What It Means
The EPA's 2023 public water system record for Green Bay Waterworks in Brown County reports a 90th percentile lead concentration of 0.0025 mg/L. This figure, derived from plumbing and distribution system samples, does not reflect the raw surface water source but rather measures lead presence within the water delivered to consumers. Importantly, this system has no recorded health-based violations for lead, indicating compliance with EPA regulations at the system level.
How Water Source and Sampling Location Affect Lead Levels
Lead concentrations in tap water depend heavily on where the sample is taken. Green Bay obtains its supply from surface water, which typically has low inherent lead levels. However, lead can enter water from household plumbing and service lines. Samples reported by the EPA reflect water from various points in the distribution network and consumer taps, capturing potential lead contributions from these materials. Thus, sample depth and location in the plumbing system cause variation that homeowners should consider when assessing their own water.
Interpreting Sampling Data as a Green Bay Homeowner
For residents, the 0.0025 mg/L 90th percentile means that most tested taps had lead levels below this number; the 90th percentile is a regulatory benchmark indicating that 90% of samples were at or below this level. Since this is a distribution sample, it cannot predict exactly what any single home's lead concentration is without individual testing. Homeowners curious about their water should obtain tests that specifically sample their own tap water to understand their unique situation.
Maintenance of Treatment with the Pentair Lead in Water Filter
When considering treatment, the Pentair Lead in Water Filter is one documented approach to reducing lead at the tap. This system ships ready to configure and requires periodic maintenance to replace the filter cartridge according to usage guidelines to sustain effectiveness. Regular cartridge changes are essential to ensure continued removal performance and avoid flow restrictions or filter degradation.
How Lead Enters Water in Green Bay's Distribution Environment
Lead in Green Bay's drinking water system typically does not come from the surface water source itself. Instead, it can enter due to corrosion of lead-containing plumbing materials in older homes or service lines. Factors such as water chemistry, stagnation time, and pipe materials influence lead leaching. Green Bay's compliance record suggests corrosion control measures are effective, but individual plumbing remains a potential lead source.
Identifying Symptoms of Lead in Household Water
Lead presence in household water is often undetectable by taste, odor, or appearance. Symptoms like metallic taste or discoloration are not reliable indicators of lead contamination. The only definitive way to know if lead is present at concerning levels is through certified water testing. Because lead exposure risk is not always apparent, proactive testing is advisable if there is concern about plumbing materials or household water quality.
Summary: This page guided readers through understanding Green Bay's public water system lead data emphasizing the importance of individual testing and sample context. It introduced the Pentair Lead in Water Filter as a water treatment option requiring routine filter maintenance to help address residential lead concerns in Brown County.
Where this information comes from
Source: EPA SDWIS public water system record. Sampled 2023-09-30. These figures describe the public water system's record, not the plumbing inside any individual building.
On record: EPA SDWIS record for GREEN BAY WATERWORKS (WI4050356), surface water supply, serving 107369 people: 0 health-based violations of 4 total; lead 90th percentile 0.0025 mg/L