PWS_-_Reach_1-3_and_PNM_RPS_28JUL23.docx

NAVAJO GALLUP WATER SUPPLY PROJECT UTILITIES POTHOLING

REACHES 1, 2, 3, AND THE PNM RIVER PUMP STATION

UNITED STATES DEPARTMENT OF THE INTERIOR BUREAU OF RECLAMATION

UPPER COLORADO BASIN REGION SALT LAKE CITY, UTAH

Reaches 1,2,3, and the PNM River Pump Station Utility Potholing

PERFORMANCE WORK STATEMENT

Navajo-Gallup Water Supply Project Utilities Potholing Reaches 1,2,3, and the PNM River Pump Station UTILITY POTHOLING

(1) General The Navajo-Gallup Water Supply Project (NGWSP) design consists of two Reclamation design and construction branches (San Juan Lateral and Cutter Lateral) that are each divided into sections of unequal length called “Reaches”:

· The project’s western branch, the San Juan Lateral (SJL), begins approximately in Waterflow, NM at the PNM (Public Service Company of New Mexico) Reservoir, heads south to the N36 highway, then west/slightly southwest to the SJL Water Treatment Plant (WTP) at Lat: N36° 42' 08" Long: W108° 36' 06", then southwest until the pipeline will roughly parallel US Highway 491 south to Yah-ta-hey, NM.

· The project’s eastern branch, the Cutter Lateral, begins at Cutter Reservoir east of Blanco, NM and will roughly parallel San Juan County Road 7007 to existing tanks at Huerfano Mesa, NM near US Highway 550.

Potholing of existing underground utilities for three (3) Reaches and an existing river pump station on the San Juan Lateral is required under this requirement to allow for collection of survey data for design purposes:

1. The PNM River Pump Station is located at Lat: N36° 45' 05" Long: W108° 24' 49” and will be the beginning of the NGWSP Reach 1. Existing PNM 36” and 42” pipelines convey San Juan River water up to the PNM Reservoir. Utilities at the PNM River Pump Station area are included in this requirement. See the attached Reach Exhibits for additional information.

2. Reach 1 on the SJL begins at the PNM River Pump Station located at Lat: N36° 45' 05" Long: W108° 24' 49” from which existing PNM 36” (4.8 miles-abandoned) and 42” (4.6 miles-currently in use) pipelines convey San Juan River water up to the PNM Reservoir located at Lat: N36° 47' 11" Long: W108° 26' 48". Utility crossing conflicts where Reach 1 crosses the proposed Reach 2 pipeline alignment are included in this requirement. All Reach 1 conflicts are listed within the Reach 2 Coordinates list. See the attached Reach Exhibits for additional information.

3. Reach 2 on the SJL, begins at the existing PNM Reservoir Pump House located at Lat: N36° 47' 09" Long: W108° 26' 35", parallels County Road 6800 south, crossing NM Highway 64 and continues south across the San Juan River until it intersects with BIA Route N36. From this point Reach 2 ends and Reach 3 begins approximately 115 LF to the west on the north side of BIA Route N36 at Lat: N36° 43' 06" Long: W108° 27' 48". Reach 2 is approximately 5.4 miles in length. Utility crossing conflicts between the proposed Reach 2 pipeline alignment are included in this requirement. All Reach 1 conflicts are listed within the Reach 2 Coordinates list as the two Reaches are parallel to each other. See the attached Reach Exhibits for additional information.

4. Reach 3 on the SJL begins on the north side of BIA Route N36 at Lat: N36° 43' 06" Long: W108° 27' 48", roughly paralleling N36 for approximately 2.4 miles then crosses N36 heading southwest across the Chaco River at Lat: N36° 42' 27" Long: W108° 31' 57" then continues west to the termination point of Reach 3 and future location of the SJL WTP located at Lat: N36° 42' 18" Long: W108° 35' 56". Reach 3 is approximately 8.6 miles in length. Utility crossing conflicts between the proposed Reach 3 pipeline alignment are included in this requirement. See the attached Reach Exhibits for additional information.

(2) Performance Work Statement This work includes locating/verification followed by the potholing of existing utilities for three (3) separate Reaches adjacent to each other (Reaches 1, 2, 3) and the PNM River Pump Station (Separate Area of the NGWSP). The contractor shall first have a Utility Locate Service verify each coordinate location in this requirement to ensure that the utility exists underground at each requested location. Once this step is complete, the contractor shall then use Air or Hydro-Excavation services to expose the top of the underground utility at each of the crossing locations identified in the following sections. The identified crossing conflicts are located along the centerline of the NGWSP pipeline alignment where it is anticipated to intercept the underground utility.

(a) Utility Locate Verification

Reclamation identified each crossing location based on data provided by utility owners in the area, either from provided SHP/KMZ files, or from a field verification of the painted markings as a result of an 811 Utility Locate Call-In. Reclamation will provide a wood lathe stake at each crossing location, to assist in the location verification of utilities. Coordinates of each crossing location are provided in the following sections.

The Utility Locate Verification is necessary to ensure successful potholing efforts with the Air or Hydro-Excavation services. This portion of the requirement is intended to be procured by the contractor and achieved using an Underground Utility Locator instrument/system designed to detect and locate underground electric, telephone, cable TV, wastewater, gas and sewer lines, or other means as required to positively identify the utility. It may be the case that some underground (U.G.) utilities lack tracer wire, metallic components, or Radio Frequency Identification (RFID) locating devices and may require the use of Ground Penetrating Radar (GPR) or similar technologies to locate. The contractor can choose to locate manually, but this needs to be included in their quoted unit price.

Contractor shall investigate a minimum 20’ diameter area around the conflict/crossing locations listed. The existing marking provided by Reclamation shall be replaced by the utility locating contractor to confirm the location has been verified. If no underground utility could be verified, the contractor shall mark those locations differently and inform Reclamation and wait for direction on the path forward.

(b) Potholing Method

Air and/or Hydro-excavation is the preferred method for potholing those utility locations that are positively verified, as well as those that meet the criteria for excavation. The contractor shall be responsible for visiting the site(s) prior to performing work to verify that air and/or Hydro-excavation equipment can access the pothole locations. Potholing using a backhoe shall only be performed, with Reclamation’s prior approval, if the site proves to be inaccessible using air and/or Hydro-excavation equipment. Potholing is not required for communication cables/wires, and 2” Polyvinyl Chloride (PVC) water service pipelines -- locating shall be acceptable from the use of only the GPR locator or similar device results. 4” Diameter utilities and larger shall require location and depth measurement through the use of hydro-excavation. The Crossing Locations List further clarifies this request.

Backfill of each pothole shall be completed following survey measurements, using surface soil gathered from around or near to the pothole location implementing a method to minimize ground surface disturbance. If a sufficient amount of backfill soil is not available following successful location and recording of the underground utility elevation the Hydro-excavation contractor shall be responsible for backfilling of all holes using fill obtained elsewhere, and/or temporarily marking the hole barricaded with cones or safety ribbon until the hole is filled to its original ground level.

Reclamation will also provide to the awardee, if requested, additional information in support of utility locating:

· SHP/KMZ files.

· Township, Range, and Section information.

· Driving directions to each location.

· Available contact information for utility owners that are not part of the New Mexico (NM) One-Call system.

The contractor shall notify the respective utility owners, and request ground locates for each of the utilities at the crossing locations identified in the following sections if the provided information is not sufficient. The ground locates shall be of sufficient area coverage to vet any other utilities in the nearby area (200-foot radius of crossing location is suggested). Not all utility owners are part of the NM One-Call system. If a utility owner requires a representative to be on-site during excavation, the contractor shall coordinate with the utility owner to schedule their representative to be on site prior to performance of work. A copy of the One-Call documents will be provided to the awardee of this requirement by the Contracting Officer’s Representative (COR) .

Anticipated crossing locations are provided below. Reclamation identified each crossing location based on data provided by utility owners in the area, either from provided SHP/KMZ files, or from a field verification of the painted markings as a result of an 811 Utility Locate Call-In. There is a potential for changes to locations, or the discovery of new locations during the Utility Location Verification. This list is subject to change.

(c) Additional Services

Additional Services are required services within the general scope of work to address “unforeseen” utility crossing conflicts that may be newly identified after the execution of this purchase order. The contractor shall perform these additional services only when requested by Reclamation by purchase order modification.

Prior to commencement of any “Additional Services”, the contractor shall submit a written proposal for Reclamation review and approval describing the work to be performed and include a “not to exceed” estimate of the cost.

(d) Crossing Locations

(i) PNM River Pump Station Five (5) underground utilities in the area of this requirement labeled the PNM River Pump Station shall be located per the coordinates identified in Table 1:

Table 1: PNM River Pump Station

(ii) Reach 1/ Reach 2 Forty (40) underground utilities in Reach 1/Reach 2 shall be potholed for the crossing locations identified in Table 2:

Table 2: Reach 1 / Reach 2 Crossing Locations

(iii) Reach 3 Seven (7) underground utilities in Reach 3 shall be potholed for the crossing locations identified in Table 3:

Table 3: Reach 3 Crossing Locations

(3) Traffic Control Work within the shoulder area of New Mexico State highway 64, CR 6800, Navajo Nation roads may be required. Contractor shall be required to place appropriate signage within the vicinity of the road to alert oncoming drivers.

(4) Schedule Reclamation anticipates a total of 20 business days, and two mobilization/demobilizations, are required to complete this work. The contractor shall verify this provide their anticipated schedule with their quote. The work shall begin and be completed in accordance with the terms of the purchase order:

· Contractor shall contact Reclamation within 5 business days after issuance of the purchase order to coordinate visitation and work dates.

There is a specified order of work for each Reach from North to South beginning with the Reach 1/ Reach 2 and further south to Reach 3; however, it is expected that work shall progress orderly through each Reach with all work in the first Reach 1/ Reach 2 area being completed prior to moving to the next Reach. The PNM River Pump Station is approximately 2.1 miles east on NM Highway 64 from the center of the Reach 1/ Reach 2 area. The contractor shall coordinate those potholes wherever it works most efficiently for them.

(5) Safety The contractor shall perform and submit to Reclamation a Job Hazard Analysis (JHA) in accordance with Reclamation Safety and Health Standards (RSHS) (https://www.usbr.gov/safety/rshs/index.html) Section 4 prior to commencing work. The JHA shall be submitted to the Reclamation COR a minimum of 7 calendar days prior to contractor’s planned mobilization to the job site. A sample JHA for utility potholing work is available electronically upon request to assist the contractor with development and approval at solicitation. The JHA shall meet Reclamation RSHS and be approved by Reclamation prior to the contractor mobilizing to the job site.

(6) Acceptable Criteria Potholes shall be of adequate size and depth to expose the top of the utility, to allow placement of survey grade Global Positioning System (GPS) equipment on the utility for measurement, and to allow for positive identification (size and type) of the utility. Reclamation Surveyors will record the following information for each utility crossing potholed:

a) The elevations of both the Top of the Utility (TOP) and the Existing Ground Surface (EGS).

b) The Latitude, Longitude, Northing and Easting, as close to the top/center of each utility as possible.

c) Verification of size and type of utility (Material, Size, Type).

After the Reclamation Surveyor records the required information, the recorded information will be initialed by both parties. The contractor shall then backfill the potholes. Onsite Government Representative (OGR) to verify all findings prior to equipment relocation to next site.

(7) Measurement and Payment

This requirement is aimed at the successful location of those utility conflicts which exist where the proposed pipeline will cross other existing utilities. An additional locate/verification effort is included in this requirement to ensure knowledge of the existence of those conflicts in question. Payment will be a direct reflection of successful location of all verified utility conflicts regardless of the number of holes dug for each crossing location. Reclamation requests that the interested bidders provide a price per locate that will account for all efforts necessary to provide the location and depth regardless of the utility. A bid form has been provided in Exhibit A which lists all requested locations and associated maximum pricing. Reclamation Surveyors will record the TOP and the EGS elevations at each pothole location to the nearest l/l0-foot.

(8) Performance Standard Table

Task No.

Task Description

Performance Indicator

Performance Standard Minimum Acceptable Quality Level

Verification of Utility Locations.

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