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~f, <br />c. The arithmetic mean of the total suspended solids shall not exceed <br />forty (40) milligrams per liter when averaged over any three (3) <br />consecutive samples. <br />2. If the effiuent dischazge is made into the atmosphere or upon the Bound <br />surface in an area so restricted as to protect against the likelihood of direct <br />human contact with the discharge effluent, the effiuent at the point of <br />sampling shall meet each of the following standards: <br />a. The geometric mean of the fecal coliform density shalt not exceed five <br />hundred (500} per one hundred (100} milliiiters when averaged over <br />any five (5) consecutive samples, and no single sample shall exceed <br />five thousand (5,000} fecal colifotm per one hundred (I00) milliliters. <br />b. The arithmetic mean of the standard five (5) day Biochemical Oxygen <br />Detnand (BODs) shall not exceed twemy (20) milligrams per liter <br />when averaged over arty three (3) consecutive samples. <br />c. The arithmetic mean of the total suspended solids shall not exceed <br />forty (40) milligrams per liter when averaged over any three (3) <br />consecutive samples. <br />If effiuem discharge is made beneath the surface of the ground and dischazge <br />will not be made through suitable soil, either existing or constructed, or <br />through a sand filter, the foiowing standazd shall be met: <br />a. There shall be at least four (4) feet of soil between the maximum <br />seasonal high water table and the level of effiuent discharge. <br />b. The arithmetic mean of the standard five (5) day Biochemical Oxygen <br />Demand (HODS) shall not exceed sixty (60) milligrams per liter when <br />averaged over any three (3) consecutive samples. <br />c. The arithmetic mean of the total suspended solids shall not exceed one <br />hundred (100) milligrams per liter when averaged over any three (3) <br />consecutive samples. <br />4. To determine compliance with the standazds in this section, samples shall be <br />at Least taken once per week but no more frequently than once per day. <br />D. Methods of Analysis - SamQlin¢ Points: <br />All effluent samples shall be analyzed according to the methods prescribed in the <br />current edition of "Standazd Methods for the Examination of Water and Wastewater" <br />(American Public Health Association). Copies of the analytical methods allowed may <br />be obtained, upon request from the I.S.D.S. Program Coordinator, Colorado <br />52 <br />