215-25 Exhibits - NJDOT_GPI.pdf

Washington Street TAP Exhibit A Page 21 of 23 West Orange, Essex County, NJ Scope of Services - SUE Subsurface Utility Engineering Services Standard Provisions: 1. Taylor Wiseman & Taylor (TWT) will provide subsurface utility investigations in accordance with accepted industry standards. Investigations will be performed at Utility Quality Levels as specified in the Client Approved Scope of Work. Utility Quality Levels (QL) will be classified as QL-D (existing records search), QL-C (visible features), QL-B (surface geophysical - Designating) or QL-A (actual exposure/test hole - Locating). 2. QL-D investigations (Records Search) will be limited to due diligent efforts based on available existing records and oral recollections. TWT will not be responsible for QL-D services provided by others. 3. QL-C (Visible Features) will be limited to information obtained by surveying and plotting visible aboveground utility features. TWT will not be responsible for QL-C services provided by others. 4. QL-B investigations (Designation) will be accomplished using passive and active types of utility detection equipment that detects induced or naturally occurring energy fields on conductive type utilities. Non- metallic lines cannot be detected without trace wire. If there is no trace wire, the Client will be informed. 5. Accuracy of QL-B investigations may be limited due to conditions beyond the control of TWT. Such conditions include, but are not limited to: a. Access to utilities b. Depth and conductivity of utilities c. Soil composition and moisture content TWT will not be responsible for utility designation errors and omissions due to unforeseen conditions beyond their control. 6. QL-B services, including marking, surveying and plotting, are expressly understood to be approximate. 7. Designation marks (paint marks) are visible for a maximum period of fourteen (14) days (weather permitting); any marks older than fourteen (14) days are not the responsibility of TWT. 8. QL-A (Locating) investigation includes information obtained by the actual exposure (or verification of previously exposed and surveyed utilities) of subsurface utilities, using (typically) minimally intrusive excavation equipment to determine their precise horizontal and vertical positions, as well as their other utility attributes, This information is surveyed and reduced onto plan documents.

ly intrusive excavation equipment to determine their precise horizontal and vertical positions, as well as their other utility attributes, This information is surveyed and reduced onto plan documents. Accuracy is typically set at 15mm vertical, and to applicable horizontal survey and mapping standards. 9. Utility record information shall at no time act or be regarded as a substitute for actual visual conformation of the underground utility. QL-A will be performed only when authorized by the Client, and will be competed only by the method of vacuum excavation. 10. SUE utility data information is intended for design purposes only. During construction, the Contractor is fully liable for the protection and preservation of all existing utility facilities. SUE services performed, and information provided by TWT does not, in any way, limit or reduce this responsibility of the Contractor during construction. Deliverables will be provided to the client in accordance with the approved Scope of Work. 11. This agreement does not relieve Contractors of their responsibility to notify Owners, Utility Companies and "one-call" centers before excavation. Prepared by: Taylor Wiseman & Taylor 6/17/2025 Page 2 of 2