按照铅和铜规则（LCR）的要求，伊迪尔维尔德水区（IWD）和松树湾水区（PCWD）在1993年和1994年进行了采样和测试计划。该项目始于对当地家庭管道的评估，以确定每个地区最有可能发生内部腐蚀活动的20个地点。一旦确认，客户被要求从其内部管道中提取“第一次抽取”样本，并将样本提交给水区。然后对样品进行测试，以确定抽取水中铅和铜的浓度。取样和测试计划发现，在确定的测试地点使用的水超过了铅和铜在第90百分位的作用水平。 由于水源水中不含铅或铜，测试中发现的铅或铜是由家庭管道或固定装置的内部腐蚀造成的。PCWD只采集了一轮LCR样品，因为显然需要进行腐蚀控制处理。根据LCR，IWD启动了一项试验性腐蚀控制计划，使用邻/聚磷酸盐缓蚀剂。由于这两个地区的水质相似，加利福尼亚州允许PCWD推迟行动，直到知道IWD试点项目的结果。包括9个参考文献、表格、图表。

As required by the Lead and Copper Rule (LCR), Idyllwild Water District (IWD) and Pine Cove Water District (PCWD) conducted a sampling and testing program in 1993 and 1994. The program began with an evaluation of local household plumbing to identify 20 sites in each district which would be most likely candidates for internal corrosion activity. Once identified, customers were asked to take "first draw" samples from their internal plumbing and submit the samples to the water districts. The samples were then tested to determine the concentration of lead and copper in the drawn water. The sampling and testing program found that water used at the identified test sites exceeded the action level for lead and copper at the 90th percentile. Because of the absence of lead or copper in the source water, lead or copper found in the tests resulted from internal corrosion in household plumbing or fixtures. PCWD only took one round of LCR samples because it became obvious corrosion control treatment would be needed. In compliance with the LCR, IWD initiated a pilot corrosion control program utilizing an ortho/polyphosphate corrosion inhibitor. Because of the similarity of water in the two Districts, the State of California allowed PCWD to defer action until results of the IWD pilot program were known. Includes 9 references, tables, figures.