CEWA 599C

Course Overview

This course will be run as a WORKSHOP to investigate the critical lake water quality management issues in the Lake Washington and Lake Sammamish watersheds. This will not be a lecture course, nor will there be any exams. We will tie into the framework provided by the hydrologic component of PRISM (Puget Sound Regional Synthesis Model) to explore how urbanization in the Seattle area will affect water quality through non-point source pollution and the operation of proposed sewage treatment facilities.

The first three weeks of this course will be spent reviewing the pertinent primary literature and reports. We will also have a series of presentations by local experts on these topics. The class will then identify key objectives (e.g. building a whole watershed P mass balance model, or a lake eutrophication simulation model) and key gaps in the current knowledge base. Then the class will break into groups of 4-6 students and each group will independently work on one of these problems for several weeks. These groups will meet with the course instructors at regular intervals and will report their results to the rest of the class every two weeks.

Speakers and Presentations

April 1^st Jeff Richey (UW): PRISM and whole system simulation modeling for the Puget Sound Region.

April 6^th Jonathon Frodge (King County): SWAMP – Lake Sammamish-Washington Assessment & Modeling Program work plan

April 8^th Group discussion on the initial objectives and group assignments

April 13^th Tommy Edmondson (UW): A long term record of degradation and recovery of Lake Washington water quality
Gene Welch (UW): A Long Term record of Lake Sammamish water quality

April 15^th Warren Perkins (Gray & Osborne, Inc): Lake Sammamish Land Use and Water Quality Simulation Modeling

April 20^th Group Discussion on Current Progress

April 22^nd Bruce Nairn (King Co.): Lake Hydrodynamic modeling for Lakes Washington/Sammamish

April 27^th Marina Alberti (UW): GIS analyses of current and projected patterns of land use and development in the Lake Washington/Sammamish watershed

April 29^th Pascal Storck (UW): Hydrological Modeling in the Lake Washington/Sammamish watershed

May 4^th Don Theiler (King Co): Water Reuse and long-term water resource planning in the King County Region

May 27^th May Greg Pelletier (Dept. of Ecology): SPASM- South Puget Sound Model, nutrient loading and impacts study

Class Readings

Readings will be assigned for most class sessions, especially in the beginning of the course. It is imperative that you read these papers before class meets. This will dramatically elevate the quality of our group discussions.

1^st week

Carpenter, S R; Caraco, N F; Correll, D L; Howarth, R W; Sharpley, A N; Smith, V H. Nonpoint pollution of surface waters with phosphorus and nitrogen. Ecological Applications 8: 559-568.

Soranno, P A; Hubler, S L; Carpenter, S R; Lathrop, R C. 1996. Phosphorus loads to surface waters: A simple model to account for spatial pattern of land use. Ecological Applications 6: 865-878.

2^nd week

King County. 1999. SWAMP: Lake Sammamish-Washintgon Assessemnt & Modeling Program work plan.

Franks, PJS. 1995. Coupled physical-biological models in oceanography. Reviews of Geophysics 33s: 1177-1187.

Oreskes, N; Shrader-Frechette, K; Belitz, K. 1994. Verification, validation, and confirmation of numerical models in the earth sciences. Science 263: 641-646.

3^rd week

Bennet, et al. 1998. A phosphorus budget for the Lake Mendota watershed. Ecosystems 2: 69-75.

Haygarth, P. 1997. Agriculture as a source of phasphorus transefer to waters: sources and pathways. Scope Newsletter, Number 21.

Edmondson, W T. 1994. Sixty years of Lake Washington: A curriculum vitae. Lake and Reservoir Management 10: 75-84.

Perkins, W W; Welch, E B; Frodge, J; Hubbard, T. 1997. A zero degree of freedom total phosphorus model: 2. Application to Lake Sammamish, Washington. Lake and Reservoir Management 13: 131-141.

National Research Council. 1992. Restoration of aquatic ecosystems : science, technology, and public policy. National Academy Press. Washington, D.C. :

Course Requirements

For further information contact the instructor below or UW Extension (206-543-2320).