[PDF] Plumbing - Newark Unified School District
Jan 20, 2021 · Avoid contaminating equipment or sample bottles on site by setting them on or near potential contamination sources ... A tape measure and water finding paste can also be used. ... 4.2 Well purging (standard purge and sample method) ... bailers or laboratory-cleaned stainless steel bailers for sampling.
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nusd's website is nusd.k12.ca.us