SECTION 01 35 26 – ATTACHMENT B PORTSMOUTH NAVAL SHIPYARD UTILITY LOCATING PROCEDURES LOCATION OF UNDERGROUND FACILITIES B1.1 General Excavation or ground penetrating work is defined as any operation in which earth, rock or other material below ground is moved or otherwise displaced, by means of power and hand tools, power equipment which includes grading, trenching, digging, boring, auguring, tunneling, scraping and cable or pipe driving except tilling of soil, gardening or displacement of earth, rock or other material for agricultural purposes. Removal of bituminous concrete pavement or concrete is not considered excavation Ground penetrating work may include but is not limited to installing fence posts, probes, borings, piles, sign posts, stakes or anchor rods of any kind that penetrates the soil more than 3”. The “Excavator” is defined as the person directly responsible for performing the excavation or ground penetrating work. B1.2 Underground Utilities Location The Contractor/Excavator shall fully comply with the State of Maine “DIG SAFE “law (Title 23, MRSA 3360-A). Existing underground utilities shown on the plans are based on PNS Yard Plates and are shown in their approximate locations only. The Excavator shall pre-mark the excavation area in “White Paint Only”. (Field notes may be done in Pink paint). The Excavator shall notify “DIG SAFE” (1-888-344-7233) at least within 14calendar days, but no more than 30 calendar days prior to the commencement of the excavation or ground penetrating activity. The Excavator shall prepare a PWD ME Dig Safe Utility Locate Request Format least within 14 calendar days prior to the commencement of the excavation or ground penetrating activity and submit the Form to the Contracting Officer. (The PDW ME Dig Safe Form is attached at the end of this Section.) The Government will locate and mark the underground utilities within 14 calendar days of receiving the Dig Safe Notification. Excavation or ground penetrating activities cannot commence until the utilities have been marked in the field and the PWD ME Dig Safe Utility Locate Form has been returned indicating the PWD ME Dig Safe review process has been completed and excavation has been approved by the Contracting Officer. If the excavation or ground penetrating activities do not commence within27 days of Dig Safe notification or the excavation work is expanded outside the location originally specified in the notification, the Excavator shall re- notify Dig Safe, the Contracting Officer and the PWD ME Dig Safe Coordinator. PORTSMOUTH NAVAL SHIPYARD UTILITY LOCATING PROCEDURES The Contractor shall maintain the utility markings though out the contract period. If additional markings are required, the Excavator shall re-notify Dig Safe, the Contracting Officer and the PWD ME Dig Safe Coordinator. Re-markings will be completed at the Contractor’s expense. The Contractor shall contact the PWD ME Dig Safe Coordinator (DSC) if there are any questions regarding the underground utilities or the Dig Safe notification. B1.3 Third Party Utility Locate The contractor must provide the services of a Third Party, qualified independent utility locating company/person(s) (Cannot be the Government’s Utility Locating Firm) to positively identify underground utilities in the work area. The third party independent locating firm is in addition to the PWD ME Dig Safe Process. The Third Party review must be completed after the PWD ME Dig Safe marking have been completed. Once the Third Party Locate Company has completed their review of the excavation area and the Government markings are confirmed, the Third Party Locate Company & Contractor must sign the Third Party Utility Locate Certification Form (See Attachment) and submit the form to the Contracting Officer prior to commencing excavation. If the Third Party Locate Company finds any discrepancies with the Government's utility markings, the Contractor must notify the Contracting Officer immediately. B1.3 a Utility Location Verification Physically verify underground utility locations, including utility depth, by hand digging using wood or fiberglass handled tools when any adjacent construction work is expected to come within one meter 3 feet of the underground system. B1.3.b Utilities Within and Under Concrete, Bituminous Asphalt, and Other Impervious Surfaces Utilities located within and under concrete slabs or pier structures, bridges, parking areas, and the like, are extremely difficult to identify. Whenever Contract work involves chipping, saw cutting, or core drilling through concrete, bituminous asphalt or other impervious surfaces, the existing utility location must be coordinated with station utility departments in addition to location and depth verification by a third party, independent, private locating company. The third party, independent, private locating company must locate utility depth by use of Ground Penetrating Radar (GPR), X-ray, bore scope, or ultrasound prior to the start of demolition and construction. Outages to isolate utility systems must be used in circumstances where utilities are unable to be positively identified. The use of historical drawings does not alleviate the Contractor from meeting this requirement. B1.3.c Excavating with Hazardous or Mission Critical Utilities within the excavation area i. The Contractor must employ supplement daily Dig Safe procedures to include an additional checkoff on Contractor Daily Activity Plan asking if all utilities have been clearly marked and reviewed with the SSHO. ii. Require a Dig Safe laminated utility color coding system posted in or near all heavy digging equipment for easy reference to type of utility. iii. SSHO to do a pre-excavation walk as part of the morning procedure to help ensure all known utilities are identified and markings are refreshed with the appropriate color-coded paint. iv. Contractor to provide additional danger signage, to mark areas of known live underground utilities. v. Contractor to ensure a ‘spotter’ accompanies the equipment operator during excavation work. vi. Contractor to provide Construction CM/ET notification No later than 3 working days prior to the preparatory and initial pre-excavation/demo safety review meeting will be held. The CM/ET, as well as the PWD ME DSC, will attend this meeting to ensure safety and preservation of Critical Utilities is discussed with adequate focus. Form Reset Revision Date 3/21/21 PWD-ME DIG SAFE UTILITY LOCATE REQUEST FORM A Utility Locate Form shall be submitted to PWD-ME DSC at least fourteen (14) calendar days prior to excavation, ground penetrating or concrete slab cutting, coring or drilling activity either inside or outside of a building which will penetrate more than 3". A Utility Locate Form is required for ANY excavation, ground penetrating or concrete slab cutting, coring or drilling on the Shipyard by Shipyard Employees, Contractors or other personnel. Part I – To be completed by Contractor or Shipyard Personnel performing the Excavation Today’s Date: / / DIGSAFE Ticket #: (1-888-344-7233) Requested by: Phone #: Code # / Company: E-mail: Contract #: Project Title: PWD ME/PNS POC Phone # Excavation Location: Area Pre-Marked: YES NO Type of work: Depth: (ft) Anticipated Excavation Date: / / Time: (military) Attach a map or the contract drawings showing the excavation/ground penetrating area. PWD ME Construction Contractors: Complete Part 1 and Submit Form to PWD ME CM/ET PWD ME AE Firms/Subconsultants: Complete Part 1 and Submit Form to PWD ME DM Shipyard Personnel: Complete Parts 1 & 2 and Submit Form to PWD-ME DSC Part 2 – To be completed by the PWD ME CM/ET/DM (If Shipyard work, Part 2 must be completed by Requestor) Date: / / Name: Phone # Locate Priority: Routine(> 14 days) ; Urgent(< 14 days) ; Emergency(<2 days) (PWD ME DSC Approval Req.) Part 1 Reviewed and Complete: YES NO Initial: Submit Completed Form to PWD ME DSC. The PWD ME DSC will review the Request and forward to the PWD ME FSC Utility Locate Contract Rep who will review and forward to the Utility Locating Company for action. Part 3 – To be completed by FSC Utility Locating Company Approved by FSC Utility Locate Contractor: Initials _________ Date Utilities marked in the field: / / Name: Comments: Utility Plan Discrepancies Noted: YES NO PWD ME FSC PAR & DSC Notified: YES NO Comments: Submit to PWD ME FSC Contract Rep who will forward to the PWD ME DSC. If Plan Discrepancies are noted, provide a scaled markup plan showing the correct utility locations. Part 4 – To be completed by PWD ME DSC Date / / Logged Into Database: YES NO # Any Hazardous/Mission Critical Utilities in the Excavation Area: YES NO Comments: PWD ME DSC to return a copy of the completed Form to PWD ME CM/ET/DM or Shipyard Personnel Requesting the Utility Locate. PWD ME CM/ET/DM/Requestor to ensure the Excavator is aware if a Plan Discrepancy were found and to use extreme caution when excavating. If Plan Discrepancies are noted, the PWD DSC shall coordinate any Utility Plan Updates with PWD DC CADD Rep. INFORMATION THE EXCAVATOR WILL NEED TO PROVIDE THE DIG SAFE OPERATOR DIG SAFE System, Inc. Locate Request Form 888-DIG-SAFE Digsafe.com Today’s Date _____/_____/_____ DIG SAFE Number____________________ Caller Details: Contr I.D. ___________ Caller Name __________________Title____________________ Phone #___________________ Fax #__________________ Alt # _________________ Email address _____________________________ Business Hours _______ to ________ Company Name___________________________________________________________ Address_________________________________________________________________