(GPR) Ground Penetrating Radar
Utilizing electromagnetic (EM) and or (GPR) locating methods, with available print information we will underground utility locate locatable underground utilities at your site. The extent of the work encompasses the requested addresses. The mentioned services provided will be billed at an hourly rate.
SCOPE OF SERVICES
the exact scope of work and area to be utility located. We will mark the area in white paint specify.
- Using (EM) Locating & GPR or Cement Scanning equipment and the locating techniques described in this proposal. Bullseye locating will attempt to locate the requested utilities at your job site. Actual utility locates (Work) time may exceed the estimate. Work will not progress past estimated time without customer approval. Police detail process is an estimate actual cost of police detail may vary and not in the control of Bullseye Locating. The price quoted is an estimate any charge over the estimated price will past through to hiring client.
2.BULLSEYE LOCATING WILL GLAD TO :
- Establish the exact scope of work and area to be utility located. We will mark the area in white paint to specify locate/survey areas if requested.
- Site meeting with available facilities personnel to gain access to buildings and added information on the underground plant in the area.
- Perform underground utility locate utilizing electromagnetic (EM) locating methods to establish the location of underground utilities.
- Delineate underground facilities with paint, flags, and stakes.
Bullseye Underground Utility Locating Service L.L.C. adheres to Dig Safe, Call Before You Dig (CBYD) or your local one-call center's laws and regulations. We utilize (NULCA), the National Utility Locating Contractors Association's best practices and guidelines for correct underground utility location methods. Bullseye will delineate using paint and flags along with available underground plant plans and topical evidence and mark requested locatable privately owned underground facilities located at your site. Bullseye specializes in locating and identifying any item placed below ground for use in connection with the conveyance of water, sewage, telephone or fiber optic communications, electric energy, oil, gas or other substances. For example, pipes, sewers, conduits, cables, valves, lines, wires, manholes, and empty conduit. We only locate facilities that convey gas, oil, fuels, toxic materials, explosive materials, and environmentally damaging products for survey purpose only not intended for excavation purposes. We do not mark irrigation, plastic pipes, septic tanks, leach fields, Underground fuel storage, or any tank below ground. Bullseye Underground Utility Locating uses electromagnetic line location (EMLL). These techniques are used to locate the electromagnetic field resulting from an electric current flowing on a line. These fields can arise from currents already on the line (known as passive or ambient signals) or currents applied to a line with a transmitter (active). The most common passive signals are generated by live electric lines, grounded water lines, and re-radiated radio signals. Active signals can be introduced onto conductive utilities by directly connecting the transmitter to the line at accessible locations, causing the signal to travel along the utility. This is referred to as electromagnetic conduction (EMC). Additionally, a signal can be introduced onto a line through electromagnetic induction (EMI). This involves transmitting a high-frequency electromagnetic field through the air with the transmitter placed on the ground surface in close proximity to the utility. Alternately, an induction clamp can be placed around specific metallic conduits in vaults or breaker boxes. The detection of underground utilities is dependent upon the composition and construction of the line of interest. Utilities detectable with standard line location techniques include most continuously connected metal pipes, cables/wires or non-metallic utilities equipped with tracer wires. These generally include water, electric, natural gas, telephone, and other conduits related to facility operations. If there are no passive currents present, then these utilities must be exposed at the surface or accessible in utility vaults in order to have an active signal placed on them. Utilities that are not detectable using standard electromagnetic line location techniques include those made of non-electrically conductive materials such as PVC, fiberglass, vitrified clay and metal pipes with insulating joints. Bullseye will attempt to place traceable material within the unlocatable pipe or conduit if access allows in order to induce a signal. The electromagnetic (EM) locating equipment we use to locate metallic pipes and or cables provides us with a range of frequencies necessary in a survey. Having the choice of frequencies at-hand gives us the ability to adjust to the unforeseen soil conditions as well as pipe/cable conditions which can be encountered unexpectedly on the job-site. The equipment also provides continuous depth-estimates to help confirm target conductors in which, secondly, can be applied for excavation and design information. A measure of accuracy varies allowing a hand dig tolerance of 28 inches on either side of the utility-line mark out to the full depth of excavation. Depth-readings from equipment display are available upon request, however, they have their limitations and may not be accurate or relied upon for any purposes.
GPR Locating (Locate and Mark)
Bullseye Locating uses LMX200 ground-penetrating radar equipment to perform utility locate services. Bullseye uses the locate and mark technique this is the most common way of using GPR to track utilities. It is very similar to the use of traditional methods of tracking and detecting utility. The GPR sensor is moved along sweeps perpendicular to the anticipated utility axis. Bullseye Locating moves the GPR back and forth while marking the ground where the top of the hyperbola is observed, the alignment of the subsurface utility can be traced out and marked once a linear feature is detected. GPR systems that operate in the 100 to 500 MHz frequency range offer the best compromise between spatial resolution and exploration depth. The LMX200 system provides an excellent example of a GPR system optimized for utility locating. Other direct approaches for utility detection like EM locating or to trench, hand dig, or vacuum excavate to expose features. Any prior knowledge of underground, underground plans and accurate as-built drawings are recommended to be effective with these techniques. GPR is not without its limitations. GPR radio wave signals are absorbed by the ground with some soils (clays, saline) greatly limiting exploration depth. GPR effectiveness is thus site-specific and varies greatly from place to place.
GPR Data Disclaimer
Ground penetrating radar (GPR) is a non-destructive testing method used to locate materials such as concrete, plastic, metal, steel, rock, soil, ice, and pavement. At Bullseye Utility Locating LLC, we use the latest GPR technology to provide critical information on utilities, structural elements and other potential obstructions underground. Because depth of exploration is dependent upon the electrical properties of material(s) inspected and interpretations are opinions based on judgments made from those acquired radar signals and/or other data, Bullseye Utility Locating LLC does not guarantee the accuracy or correctness of interpretations and Bullseye Utility Locating LLC will not accept liability or responsibility for any loss, damage, or expense that may be incurred or sustained by any services or interpretations performed by Bullseye Utility Locating LLC. Even though, Bullseye Utility Locating LLC uses what we believe to be the best technology available in the market for Utility Location we cannot detect every buried utility. A buried line or pipe must conduct an electronic signal, transmitted by our equipment, to be accurately detected. At job sites, there will more than likely be subsurface utilities that cannot be detected, and many times utilities pass through a site without an above ground access point or giving any other indication that they are there. Our friendly and knowledgeable staff is always available to explain any limitations as they pertain to your site. For these reasons, Bullseye Utility Locating LLC is not responsible for any nonconductive lines (Non-Metallic, PVC, Water Line, Etc.) and for any conductive lines with no accessible connection point or those that do not appear on blueprints, maps, or as-builts provided by the customer prior to locating. Bullseye Utility Locating LLC is not responsible for any loss or damage arising out of the use of, or reliance on the data collected or the report presented.
Boring clearing or staking location details
Bullseye Underground Utility Locating cannot 100% clear a boring or stake locations of all utilities. Bullseye can identify and locate utilities running in a projected boring or stake location. This is done by examining print information provided by the customer, topical evidence and any information gained at the dig site. Excavator should always take extreme caution when driving/pounding in stakes, drilling or boring at a location after it is it is marked. Bullseye utilizes techniques such as (EM) Electromagnetic line tracing. This form of locating is economical but has its limitations. Even though all utility locating techniques has its limitations Bullseye does recommend GPR locating techniques along with (EM) to gain more formation before driving stakes, boring or excavating.
YOUR RESPONSIBILITIESThis project may require your involvement in order to achieve a smooth and successful implementation; it will be your responsibility.
- Access to the job site and building and locate area is clear of obstructions including snow, Ice, cars, trees, and brush etc... NOTE: If the site requires a lengthy preparation, inspection, health and safety training, the total time required to complete
- Supply as much utility print information for project site as possible.
- Supply contact information for maintenance and facilities personnel, if possible.
- Complete and sign proposal and locate request forms.
- Ensure the locate/survey area is clear prior to the start of work and is open and accessible to our crew and equipment.
- Call your local on call center and provide us with the current dig request number.
- Provide Client will provide Bullseye with all necessary access to the site so that Bullseye can complete the project in a timely manner.
- Client will also pre mark dig locations and plorations
STANDARD TERMS A CONDITIONS
The contract terms and conditions listed below are intended, together with the Proposal and Estimate, to constitute the entire contract between Bullseye Underground Utility Locating, LLC (“Bullseye”) and the client identified in the Proposal.Change in Scope of Services:
If subsequent to the execution of this agreement, there is a change in the Scope of Services, either as ordered by the client or as necessitated by circumstances or authorities, there terms hereof will be amended by a writing that specifically describes the change and the agreed-upon change in compensation to Bullseye. Unless and until such a written amendment is executed, neither party shall be bound by and purported changes to this agreement. Provision of Site Access and Related Data:
Client will provide Bullseye with all necessary access to the site so that Bullseye can complete the project in a timely manner. The client will also mark locations for explorations that are suitably accurate for the purposes of the project. To aid in interpretation of data collected in the exploratory work proposed, the client agrees to provide Bullseye with copies of prior, current, or after-the-fact data and information related to the project as it becomes available to the client.Reimbursable Expenses, Subcontractors, Payment of Fees:
Reimbursable expenses are those costs incurred by Bullseye, i.e, the fees and expenses subcontractors, costs of all supplies, materials, and services needed to meet the requirements of the services of this proposal. Payment for all such reimbursable expense is the obligation of the Client andClient's Responsibility to Notify of Hazards: It is the client's responsibility to advise of any known hazards or hazardous substances or any known conditions on or near the site that may present a potential danger to human health or to the environment. Bullseye is not responsible for claims or losses that result from the client’s failure to give such notice.Termination Provision:
This agreement may be terminated by either party upon five (5) days written notice. Bullseye shall be paid for services completed up to the time of termination. Payment and Terms:
Payment is required at time of service. If Bullseye issues an invoice, Bullseye will issue invoices not more frequently than monthly. Payment of the amount invoiced is due within 10 calendar days of the invoice day. If payment is not made within 30 calendar days of the invoice date, the amounts due will include an interest assessment at the rate of 1-1/2% per month on the balance outstanding, commencing on the due date. If the client fails to make payment when due, Bullseye may, upon seven calendar day’s written notice to the client, suspend its performance of services under this agreement. The client agrees to pay for all reasonable collection costs including, but not limited to: attorney's fees, court costs and interest on overdue invoices.Responsible Party:
The client, as the responsible party, agrees to compensate Bullseye at the standard or agreed rate for providing the professional services, as described in the proposal.Delays:
Bullseye is not responsible for delays in the performance of the agreement due to inclement weather, illness, failure of equipment, the unanticipated degree of difficulty encountered in performing said services, or delay created within or by approving agencies. Neither will Bullseye be responsible for delays due to changes in conditions on the site or on property adjacent to the site that would adversely impact work conditions requiring delays or additional services.Warranty and Limits of Liability, Waiver of Consequential Damages:
All professional services provided by Bullseye will be performed in accordance with generally accepted engineering, surveying and related professional services principles and practices but, otherwise, Bullseye makes no express or implied guarantees, representations or warranties as to the quality, fitness, merchantability, suitability of the services rendered under this Agreement. Further, the liability of Bullseye is hereby limited to the cost of the services performed. Further, each party waives its right to seek consequential, special and any other type of indirect damages related to the project.Indemnification:
Client agrees to indemnify, defend, release and hold Bullseye, and its employees, agents and subcontractors free and harmless with respect to all damages, claims, causes of action and otherwise with respect to any personal injury or property damage that may arise out of, or in relation to, the performance of the services hereunder or in connection with the project for which the services are being performed. Such indemnification will be irrespective of any actions, or failure to act, by or on behalf of Bullseye and will include all costs and expenses, including attorney’s fees, incurred in the investigation, defense, settlement or payment of such claim.GPR Data Disclaimer:
Ground penetrating radar (GPR) is a non-destructive testing method used to locate materials such as concrete, plastic, metal, steel, rock, soil, ice, and pavement. At Bullseye Utility Locating LLC, we use the latest GPR technology to provide critical information on utilities, structural elements and other potential obstructions underground. Because depth of exploration is dependent upon the electrical properties of material(s) inspected and interpretations are opinions based on judgments made from those acquired radar signals and/or other data, Bullseye Utility Locating LLC does not guarantee the accuracy or correctness of interpretations and Bullseye Utility Locating LLC will not accept liability or responsibility for any loss, damage, or expense that may be incurred or sustained by any services or interpretations performed by Bullseye Utility Locating LLC. Even though, Bullseye Utility Locating LLC uses what we believe to be the best technology available in the market for Utility Location we cannot detect every buried utility. A buried line or pipe must conduct an electronic signal, transmitted by our equipment, to be accurately detected. At job sites, there will more than likely be subsurface utilities that cannot be detected, and many times utilities pass through a site without an above ground access point or giving any other indication that they are there. Our friendly and knowledgeable staff is always available to explain any limitations as they pertain to your site. For these reasons, Bullseye Utility Locating LLC is not responsible for any nonconductive lines (Non-Metallic, PVC, Water Line, Etc.) and for any conductive lines with no accessible connection point or those that do not appear on blueprints, maps, or as-builts provided by the customer prior to locating. Bullseye Utility Locating LLC is not responsible for any loss or damage arising out of the use of, or reliance on the data collected or the report presented.Time Limitation:
This agreement is null and void unless executed by the client and returned to this office within 21 days of issuance.Massachusetts Contract:
This agreement once signed and accepted by client and Bullseye shall be construed under and in accordance with the law of the Commonwealth of Massachusetts
We appreciate the opportunity to provide your underground utility locating needs. If you accept this proposal, please complete the form below. The client must agree to the terms and conditions before work can commence.
Bullseye Underground Utility Locating, LLC
His proposal estimates and Standard Contract Terms are hereby accepted by the Client as evidenced by the execution hereof, and the person doing so on behalf of the Client represents that he or she has the full authority to act for and in the name of the Client.
The execution by the Client constitutes authorization for Bullseye to proceed with the work contemplated in the scope of Services under the terms and conditions hereof.
PRICING & SCHEDULING
Please complete the form as much as possible. You will only be billed initially one hour for your project service.Due to the type of Service Bullseye Utility Locating provides, our technicians who will review your information and communicate with you on your project for scheduling, request additional information if needed and let you know if more time is needed to complete your project. If the additional locate time is required for your project, you will be notified and given the opportunity to accept or decline the additional time. If you accept the additional time, then you will be invoiced for that time at the end of the project. Then you will be able to make payments via credit card or through check by mail. After you complete you order you will be brought to your customer portal. You will be able to track and manage your projects results, communicate with a utility locator. You will also be able to reschedule, modify or cancel your request via the customer portal. Your customer portal will also be where you can view locate results, locate photos, project documents and invoices. If you have any question about you customer portal please contact us.
Bullseye Underground Utility Locating offers a satisfaction guarantee. You can also cancel and receive a full refund at any time.
(GPR) Ground Penetrating Radar with (EM) is billed $300.00 Per hour with a 2 hour minimumNote: $50 mobilization fee may be added if your job site location is further than 30 miles from Boston.
Estimated locate times by property type
- Residential homes – (2 Hours)
- Large residential homes estates - (2-8 Hours)
- Complexes including condos and townhouses – (2-8 Hours)
- Commercial properties – (2-4 Hours)
- Large commercial properties - (2-8 Hours)
- Industrial commercial properties - (2-8 Hours)
- Factories, military and medical facilities- (2-8 Hours)
- Vacant lots - – (2-8 Hours)
- Streets and roadways – (2-8 Hours)
These time frames are a good rule of thumb but are not fixed. your project may take more or less time depending on how many utilities are underground the size and scope of work this will be communicated to you once your project has started.