Res 1997-091 - Laserfiche WebLink

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]fJ A minimum of 20 minutes will be spent in locating structures in order for the access inspections to be counted for payment. A list of "could-not-Iocate" or "inaccessible" access structures will be submitted to the CITY. Once the CITY has located and provided access to these structures, ADS will complete all necessary inspections at no additional cost to the CITY prior to the completion of field activities. For structures located and access provided after completion of field services, a remobilization charge will be assessed. All new access structures located will be properly identified on City sewer atlas maps and provided to the CITY. . -~ The CITY will supply a list of manholes, identified on a map, which will not be located I or inspected by ADS. This list will be submitted prior to start up of field activities. ADS will not locate, inspect, and include in the final report these structures. Therefore, the identified structures will not be counted for payment. Visual inspections will be conducted on all incoming and outgoing pipes of the access structures inspected. This inspection will also include private service laterals that enter into the access structure. The information gathered will be recorded on standard field inspection forms. Photographic images will be taken of line segments from inside the access structure, showing cracked pipe; offset joints greater than 1 "; partially or fully collapsed pipe; or obstructions such as roots, debris, or grease. D. Smoke Testing . ADS will conduct smoke testing in Sub-basin 6 which consists of approximately 83,000 linear feet (Lf.). Testing will be accomplished by a two-person crew using a single 4,000 cfm blower and consecutive three-minute non-toxic smoke bombs. Smoke testing will be limited to not more than four line segments or 600 linear feet, whichever is less, per setup except where access dictates different setup procedures. ADS will utilize standard field forms to record all defect data. A minimum of two measurements to a stationary object will be recorded and sketched for each defect. Video will be ! taken and provided to the CITY. Photographi~ images will be taken for each defect. ADS/CITY will be jointly responsible for daily coordination with local authorities and will jointly respond to all telephone calls by building owners or occupants during all active phases of smoke testing. ADS/CITY will jointly document all follow-up meetings with property owners or occupants who reported entrance of smoke into their property. During the smoke testing phase it will be necessary to communicate with the fire department. The location of crews will be communicated to the fire department each day prior to commencing the tests. Smoke testing "Notice to Residents" will be distributed prior to testing. E. Flow Isolation In those areas determined to have possible excessive infiltration, "micro-systems" from 1,000 to 2,500 feet will be delineated. Infiltration will then be measured at micro- G: \0 AL LAS\CO NTRA C lìS MAR C b6. DOC April 11. 1997