科罗拉多州普韦布洛以东的阿肯色河水质存在问题，这使得开发良好的公共供水成为一项挑战。科罗拉多州拉斯阿尼马斯市（Las Animas）在河流的冲积含水层中有水井，该市一直受到高水平水硬度和溶解固体的困扰。这一因素和该地区的边际经济阻碍了这个农村社区的发展。由于来自多个来源的资金汇集，建造反渗透处理厂已成为现实。新工厂的大部分费用是通过赠款支付的。 包括3个参考文献、表格。

The problematic nature of water quality in the Arkansas River east of Pueblo, Colorado, has made the development of good public water supplies a challenge. The Colorado municipality of Las Animas, which has wells in the river's alluvial aquifer, has been plagued by high levels of water hardness and dissolved solids. This factor and the region's marginal economy have impeded the ability of this rural community to grow. Thanks to the pooling of funds from several sources, the construction of a reverse osmosis treatment plant has become a reality. Much of the cost of the new plant was paid through grant funds. Includes 3 references, tables.