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i t The facility will have 18 total parking spagrs with a a�Tere m of six employees during the peak eason and less than this num er during the off-season. are two toilets in the women's rbsathroom and one toilet and one urinal in the men's bathroom. In estimating wastewater flow volumes, EHD uses a number of criteria,typically based upon the published Sewage Standards Data. These criteria include: 1.) 15 gals per industrial employee and customers per day, 2.) The number of bathroom fixtures, or bedrooms (e.g., 150 gal/toilet fixture for store employee/public use), 3.) The number of parking stalls, and/or 4.) Historical wastewater flow data for a specific facility that can be compared with a new facility. The following Chart summarizes wastewater flow using each of these applicable parameters: WASTEWATER FLOW DETERMINATION METHODS AVERAGE DAILY FLOW VOLUMES EHD SEWAGE STANDARDS DATA (gallons per day) 15 gals/Employees x 6 maximum number of industrial employees -VO'`z) 90 gpd Does Not Account for Customers Sof* IS y_ Toilet Fixture Counts for a Store=3 toilets x 150 gals/fixture 450 gpd Accounts for Employees and Customers Parking Stalls: 18 Stalls x 15 gals/Stall for Industrial Buildings 270 gpd Accounts for Employees and Customers Historical Data: Comparable Data Does not Exist ------- Average of All Wastewater Flow Determination Methods 270 gpd Anticipated wastewater flows from the bathrooms are most closely related to the number of parking stalls, since this accounts for both employees and customers. It is also equal to the average of all of the wastewater flow determination methods. SOIL PROPERTIES AND PERCOLATION TESTING In accordance with our March 31, 2000 report,percolation testing was recommended if there was to be any change in the use of the facility, or location of the original disposal area for the subject property. Consequently, one-42 inch deep boring was hand-drilled with a four-inch auger near the north end of the new leachlines on October 27, 2003. The underlying soil consists of a fractured lean clay with a surprisingly high moisture content. After the test boring was completed, the sidewalls were scored with a pry-bar and the loose material removed. Two inches of fine gravel was then added to the hole and 12 inches of water added for pre-saturation. Before the start of testing on October 28, it was noted that no water was standing in the test boring. Test Procedure#2 was implemented, whereby the perc test was run over a four-hour period. Readings were taken every 30 minutes with an electronic water level meter. Page 2 of 4 Chesney Consulting