CORRESPONDENCE_1987-1989 - Laserfiche WebLink

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Harney Lane D.S. Page 2 of 4 39-AA-03 17708 - Drainage and Erosion Control Drainage for the lift under construction was not adequate. Water was ponded at several places on the lift (Slides 18, 43, 45, 49) . In an attempt to correct this problem, operators had excavated a temporary drainage ditch in previously covered waste. However, water was ponded in the ditch and had come into contact with exposed waste (Slides 30, 32, 33, 34, 35, 36, 37, 38) . 17709 - Contact with Water � Q5 I observed waste in contact with water where a drainage ditch had been excavated in previously covered waste (Slides 30, 31, 32, 33, 34, 35) . 17710 - Grading of Fill Surfaces Ponding was observed in numerous locations during the inspection indicating that fill surfaces had not been graded to promote runoff (Slides 39, 40, 41, 42, 43, 44, 46, 47, 48, 49, 50) . Note: Operators are in the process of adding additional lifts to the site in order to achieve a 3% slope on fill surfaces as directed by the Central Valley RWQCB to meet Subchapter 15 requirements. Operators hope to have a 1% slope on the site by the beginning of the 1987 rainy season. The required 3% slope is scheduled to be met in three years. INDETERMINATES Complinace with the following CAC Sections was given an indeterminate status pending further investigation. The site was found in complinace with all other applicable standards. 17667 - Water Supply Drinking water is provided by an on-site well and is tested quarterly. However, the Central Valley RWQCB was determined that the tests conducted are inconclusive in determining the water safety for drinking. Mark Urquhart, Project Engineer, stated that more complete tests would be run in the near future and that results would be sent to Board staff. A decision on site compliance with CAC Section 17667 is deferred pending the results of these tests.