Notes
Exhibit 409 (AR 021880). Cover letter dated February 4, 2002 from attorney Stephen J. Tan of Marten Brown to Andrea Grad of Helsell Fetterman LLP, transmitting CD-Rom containing data files held by Pacific Groundwater Group (PGG) and copies of e-mails relied upon by Charles Ellingson and PGG in formulating opinions and conclusions in ACC v. Port of Seattle, et al. Accompanied by two e-mails from Joe Brascher (Aquaterra): one dated October 17, 2001 to Pony@PGWG.com providing a spreadsheet with hourly groundwater inflow and surface runoff time series data in cubic inches per acre; and one dated October 19, 2001 explaining an impervious surface runoff spike caused by a threshold volume dump in a single time step. CC to Steve Jones and Joan Marchioro.