Subsurface Utility Designation. 1. By use of Ground Penetrating Radar (GPR) and Electromagnetic Induction (EM), Attempt to horizontally locate and field xxxx (paint & flags) all public subsurface utilities found excluding service lines, gravity sewer lines and irrigation within the public right of ways in the area encircled in blue on the attached Exhibit “B”.
Subsurface Utility Designation. Subsurface utility designation will be performed in order to locate. L&S Diversified, LLC will initially provide “Level B” investigation, which will utilize GPR investigation to determine existing utilities. This will be a combination of Sunshine 811 “Design” ticket requests, record drawings, and in field GPR by L&S. The effort will be based on the best available data gathered and marked by utilities along with L&S’s in field support. Where additional detail locates and data is necessary, the investigation effort will be supported by up to 10 additional “Level A” Excavation Holes. This assumes 5 soft and 5 hard surfaces, with a depth of up to 10 feet deep. L&S will also provide MOT design, set up and take down for the manhole access along the area of investigation.
Subsurface Utility Designation. Quality Level “B” A Sunshine 811 “Design” ticket will be requested for the areas described to determine the utility providers within the project limits and to notify them of the request for coordination with the L & S utility locator. These areas will be scanned for underground utilities using electronic detection devices and Ground Penetrating Radar (GPR). Any utilities detected and found within the project limits will be surface painted and flagged with the appropriate color as recognized by the National Utility Locating Contractors Association (NULCA), or if marked by others, will be verified by the L & S utility locator. Underground utilities that are detectable by the above methods, where surface evidence exists or where plans are provided to L & S showing the locations thereof can be designated. However, some underground utilities may not be made of a conductive material or may not return a GPR echo and therefore cannot be designated with electronic prospecting equipment or GPR. Without surface evidence or existing plans, as provided to L & S, identification and designation of any utilities that might exist would then require soft excavation and would need to be determined by the client as additional services. L & S would expect that any available information from previous surveys of the project site, research or plans obtained by the design engineer or other drawings that depict historic utility information and any other pertinent information that has been obtained by the Engineering Design team regarding utilities at the project site will be provided to L & S to help facilitate the location and accounting for the subsurface utilities for this site. L & S utilizes the above-mentioned resources in addition to the knowledge of our experienced technicians to accomplish the goal of providing as much information regarding the subsurface utilities at this location as possible in the limited locations and by the methods described above. However, the information provided by L & S is also dependent upon the information provided by the Design team as mentioned above, Sunshine 811 request for utility owners and/or their representatives to also provide information and/or to meet with our crew at the time of these activities to verify their facilities and to confirm the details of the subsurface utilities at this location. It is understood and expected that the Design Engineer will perform sufficient Utility Coordination with the Utility Agency Owners, (UAO’s) i...
Subsurface Utility Designation. An underground utility survey will be performed to designate and map underground facilities on the project site.
