Newman Lake was included on Washington State Department of Ecology's 303(d) list as impaired due to high levels of phosphorus. The 303(d) list is from the Clean Water Act, which requires that a body of water that is impacted by water supply, fishing, swimming, and boating be listed. As a result, a Total Maximum Daily Load (TMDL) study is required. The Newman Lake Flood Control Zone District has started the process of determining how much phosphorus needs to be removed and how it is to be accomplished.
The WA State Department of Ecology recently released a final version of the Total Phosphorus TMDL Newman Lake Water Quality Improvement Report. To view or download the report in Adobe PDF format, please access either of the following links:
The Newman Lake Total Maximum Daily Load (TMDL) for Total Phosphorus is concerned with nutrient reductions from a variety of sources throughout the watershed, shoreline and lake. While the Flood Control Zone District is involved in lake management activities as well as source control in the watershed, future loading reduction activities are likely to increase in scope and complexity.
The 20 member Advisory Committee was tasked with assisting the Department of Ecology from 2006 until 2009 when the TMDL was issued. The committee assisted in outlining details of strategies to be included in a Detailed Implementation Plan. The group attended a series of workshops to help highlight opportunities for further nutrient reduction in the Newman Lake Watershed. The workshops were open to the public, with the public’s role being more observational rather than participatory, as there was opportunity given for public comment later in the process.
The group was selected from a diverse range of stakeholders and interests in the Newman Lake area. The TMDL Advisory Committee Members and their respective area of interest or representation are listed below: