A standard residential panel covering bacteria, nitrates, lead, pH, and common minerals costs $150 - $300. An extended panel adding arsenic, uranium, radon, and VOCs runs $300 - $600. PFAS testing adds another $200 - $500. For properties near industrial sites or military facilities, the full extended panel is worth the investment - discovering PFAS contamination during buyer due diligence creates maximum retrade leverage against you.
From the seller playbook: Well Water Testing and Disclosure Requirements for New York Home Sales
This is general information, not legal, tax or accounting advice. Every situation is different. Talk to a licensed attorney, accountant or tax professional before you act.
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