马萨诸塞州水资源管理局（MWRA）向波士顿和马萨诸塞州东部和中部的其他42个社区供水。水的质量通常非常高，尽管其自然的低pH值和碱性使其具有很强的腐蚀性。根据1992年对根据美国环境保护局标准采集的最差情况下的自来水样本进行的两轮抽样，发现其中47%的样本超过了铅和铜规则（LCR）铅的作用水平0.015 mg/L。发现铜低于作用水平。本文介绍了MWRA的铅和铜腐蚀控制计划，该计划涉及将pH值提高到9.0，将碱度提高到30 mg/L。在该计划期间，配电系统中出现了许多水质改善，并对这些问题进行了讨论。包括数字。

Massachusetts Water Resources Authority (MWRA) provides water to Bostonand 42 other communities in eastern and central Massachusetts. The water is generally of very high quality, although its naturally low pH and alkalinity make it quite corrosive. Based on 2 rounds of sampling conducted in 1992 for worst-case tap water samples collected as per US EPA standards, it was found that 47% of these samples exceededthe Lead and Copper Rule (LCR) Lead Action Level of 0.015 mg/L. Copper was found to be below the action level. This paper describes MWRA's Lead and Copper Corrosion Control Program which involved raising the pH to 9.0 and the alkalinity to 30 mg/L. During the course of the Program there have been a number of water quality improvements in the distribution system which are also discussed. Includes figures.