由于1986年对SDWA的修订，蒙大拿州公共供水计划（PWSP）发生了重大变化。有效的传统活动，如计划审查、卫生调查和技术援助，现在主要通过合同服务而不是项目工作人员来执行。许多州的PWSP同样缺乏解决这些重要预防活动的资源。员工现在主要从事监管和执法活动。本文提供了蒙大拿州已经解决的几个重要问题:应用程序积压；繁琐的计划审查流程；混淆和冲突的监管要求；困难且昂贵的计划审查流程；对于小型水系统来说，批准协议既困难又昂贵。 尽管对公共卫生和环境项目的支持似乎仍然很强，但总体政治气候不利于州PWSP能力建设，也不利于不必要的“障碍”因此，计划审查现在主要由顾问进行。尽管作者倾向于PWSP员工进行大部分或全部计划审查，但在可预见的未来，合同审查似乎是必要的。计划审查程序已经简化，特别是对于小型系统。特别考虑了小型系统处理技术的批准方案。

The Montana Public Water Supply Program (PWSP) has undergone significant changes as a result of the 1986 amendments to the SDWA. Effective traditional activities such as plan review, sanitary surveys and technical assistance are now performed primarily through contracted services rather than by program staff. Many state PWSPs similarly lack resources to address these important preventive activities. Staff now perform primarily regulatory and enforcement activities. This paper provides several significant issues that have been addressed in Montana: backlog in applications; a cumbersome plan review process; confusing and conflicting regulatory requirements; difficult and expensive plan review processes; and difficult and expensive approval protocol for small water systems. Although support for public health and environmental programs still appears to be strong, the overall political climate is not conducive to state PWSP capacity building nor to unnecessary "barriers." Plan review is consequently now performed primarily by a consultant. Although the author prefers that PWSP staff perform most or all plan review, it appears that contracted review will be necessary for the foreseeable future. Plan review procedures have been streamlined, especially for small systems. Special consideration has been given to the approval protocol for small system treatment technology.