Quick Answer
High lead levels in household water can be caused by old plumbing, corrosion, or nearby industrial contamination. Water testing home kits can help identify lead levels. Results above the EPA action level of 15 parts per billion (ppb) require remedial action.
Understanding Lead Sources
Lead contamination in household water often originates from old, corroded pipes or fixtures. Homes built before 1988 are more likely to have lead pipes or soldering. To minimize exposure, households with high-risk plumbing should consider lead-removal systems or replacing pipes.
Water Testing and Analysis
Home water testing kits can detect lead levels in tap water. When selecting a kit, choose one that meets EPA standards and can measure lead concentrations accurately. Some popular options include EPA-verified kits like those from the Safe Water Drinking Act (SDWA) or the National Sanitation Foundation (NSF). These kits often include a sampling device and filter to collect a representative water sample.
Interpreting Test Results and Remedial Actions
After collecting and sending the water sample to a lab for analysis, review the results carefully. If the lead level exceeds the EPA action level of 15 ppb, consider installing a lead removal system or replacing the affected plumbing. Options for remediation include water filtration systems, such as reverse osmosis or activated carbon filters, or replacing pipes with lead-free alternatives. In severe cases, households may need to seek professional assistance from a certified plumber or water treatment expert.
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