This procedure addresses the purchasing of services and supplies whose properties could affect the quality of sampling and measurement activities. Services can include but are not limited to equipment maintenance, repair, certification and proficiency test providers. Supplies can include but are not limited to chemical buffer/standard, chemical reagents, sample containers, disposable sampling equipment (i.e., COLIWASAs, bailers), laboratory supplies, tubing and latex gloves.

• Purchasing of Services and Supplies (PDF)(12 pp, 700 K, July 2, 2015)
  Purchasing of services and supplies in the field.