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The laboratory must be Massachusetts-certified (or have a designated certified sub-contract laboratory) to run all of the analyses for drinking water, ground water, surface water, waste water, soil, and sludge according to the appropriate methodology. The laboratory (or subcontracted lab) must be approved by the EPA Laboratory Approval Program (LAP) for supporting UCMR 5. This includes submitting results to EPA via the Safe Drinking Water Accession and Review System (SDWARS) within 90 days of sample collection.
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