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potholing is required to ensure the identified angle points do not change orthat additional angle points are not required due to utility conflicts. Advance planning can save significant time in the field. On the south end of Ritchey St., there is an existing valve just beyond the limits of construction. This valve must be verified to be in working condition so it can be closed to allow for the cutover process; otherwise, repair or replacement of the valve is necessary, to avoid a 2nd line stop valve. On the north end of Ritchey St., the City is adding a valve to the existing mainline via the line stop method, that is, installing a valve while maintaining water flow in the pipe. This valve is to reduce the limits of the waterline shutdown required. The contractor will pothole this location prior to submitting shop drawings of the pipe. This is to ensure the condition and outside diameter of the existing pipe has been confirmed and the correctly sized line stop/valve is procured. Sheet 26 of 39 of the plans has a line stop plan identifying k-rail to protect the line stop work. It is suggested a traffic water barrier be added on the south side work area to protect from blunt end exposure as currently shown on the plans. There is approximately 1,600-feet of 16" and 24" pipe to be slurry filled once the Ritchey St. new water main is activated, and the SA-7 Facility is activated. Although this sounds like an easy process, due to the length of the pipe runs, there will be many setups and pumping operations. The City contractor is required to overlay the entire width of Ritchey St. for the length of the project. Once the main is relocated in Ritchey St., MCI will be relocating a fiber optic line. Per the RFP, the City contractor is to wait until MCI is complete before beginning the overlay work. Coordination with MCI will be important to avoid delays to the City contractor's schedule. SR-55 Water Crossing Relocation Construction of the jack and bore casings for the water crossing cannot commence until OCTA has completed ROW agreements with the RICOH property owners. The RFP has indicated a four - month timeline. Both of our proposed inspectors have significant experience with bore and jack operations, as does our Project Manager, Dave Smith. SR-55/Ritchey Water Improvement Project Construction Management & Inspection Services Significant within this phase is the jack and bore installation of transmission mains. Both casings (30" and 42") meet or exceed the definition of a tunnel per Cal -OSHA and, therefore, shall meet the requirements of Cal -OSHA. The casings/ tunnels are constructed within the Caltrans ROW and must meet Caltrans requirements. The project schedule must include time for Caltrans review of all layouts, calculations, and work plans. The Caltrans Encroachment Permits Manual, Guidelines and Specifications for Trenchless Technology Projects, is to be adhered to, including fulltime inspection by the project owner's designated representative during tunnelling (bore and jack) operations. In addition to the bore and jack Work Plan, the contractor will be required to monitor the SR-55 surface to ensure no heaving or settlement occurs. Installation and testing the pipe will occur during this phase and before backfilling of the pits. SA-7 Pressure Reducing Station Relocation The SR-55 widening will relocate an B' x 4' RCB currently on the east side of the SA-7 Facility. Due to its proximity to the SR-55, the City and Caltrans are requiring the majority of the SA-7 Facility be built (excluding a portion of the east block wall and discharge structure), commissioned and activated, including partial demolition, prior to construction of the RCB. Of note, the existing block wall contains lead paint with elevated levels that will require the material to be handled as Non-RCRA Hazardous Waste which will require a lead workplan and disposal plan prior to demolition of the existing wall. PRS construction will commence after the bore & jack operation is complete and the pipe placement /testing is completed. Our inspectors are highly experienced with pipe and valve installations, and ourlead inspector has extensive electrical and pump station experience Our specialty subconsultant (ON -SITE) will verify Special Provisions Section 17100 Field Testing requirements are completed and ensure a smooth commissioning/ activation of the SA-7 PRS. Once the new PRS is operational and accepted, the existing PRS can be removed. Coordination with Caltrans will be required to verify length of Asbestos Cement (AC) pipe to be abandoned. An AC Pipe Handling plan to ensure the AC pipe is not friable will be required prior to removal. Berg & Associates, Inc. 9