Laserfiche WebLink
PREVENTATIVE MAINTENANCE and INSPECTIONS <br />Inspections and preventative maintenance of tanks and secondary <br />containment areas routinely occur in one of the following ways: <br />• routine undocumented visual inspections performed by operators <br />while undergoing normal operations, followed by mainter~ance <br />as required; <br />• scheduled inspections by operations and maintenance personnel, <br />as part of preventative maintenance programs; <br />• scheduled inspections by environmental personnel or their <br />designees in accordance with regulatory requirements under <br />RCRA and the Clean Water Act. <br />TANK TESTING <br />Tank testing will be performed when reasonable suspicion is raised 6y <br />deficiencies identified during inspections, maintenance records, age or design <br />life. Tests for integrity of chemical, petroleum, or wastewater tanks are <br />conducted on a case-by-case basis. The hydrochloric acid tanks were te:~ted <br />and found to be structurally sound during a routine upgrade program in the <br />Spring of 1998. Other tanks will be tested on a "as-needed" basis. <br />• Testing methods are used that consider the tank system design, i.e. tank, <br />piping, supports, and may incorporate hydrostatic, visual, shell thickness <br />measurement, or other non-destructive techniques. During testing, attention <br />is directed to seams, welds, inlet and outlet piping connections, and gaskf:ts, <br />as applicable. Deficiencies which could create a potential spill source are <br />repaired prior to placing the tank in service. <br />PIPELINES <br />Pipelines for potable water and domestic wastewater are unprotected metal <br />pipes. All new underground pipelines are designed to minimize corrosion and <br />to allow for expansion and contraction. Out-of-service pipelines are removed <br />from service in one of the following methods. Out-of-service pipelines <br />connected to a drain are either removed or the drain is grouted and the <br />pipeline filled. Out-of-service pipelines with no drain connection are drairn~d <br />and left in place. Overhead pipes are marked by "Low Clearance" signs to <br />prevent pipeline damage from oversize vehicles. <br />C1 <br />Page 14 <br />