Atch 01 - CP Services DRAFT PWS 21Sep26.pdf

Performance Work Statement (PWS) Project Title: CATHODIC PROTECTION SURVEY/INVENTORY/ASSESSMENT SERVICE CONTRACT (UFM 3-570-06, Chapter 3 Compliance) Location: [Insert DoW Installation / Base Name] Date: 21 Sep 26

1.0 Background & Objective

The Department of War (DoW) installation at [Insert Base Name] utilizes various Cathodic Protection (CP) systems—both Impressed Current (ICCP) and Galvanic (Sacrificial)—to prevent the corrosion of critical underground and submerged metallic infrastructure (e.g., fuel lines, water tanks, distribution piping).

The objective of this contract is to procure certified NACE/AMPP corrosion technical services to execute the rigorous schedule of inventory, surveys, assessments, and record-keeping mandated by UFM 3-570-06, Chapter 3 (Operation and Maintenance).

2.0 Scope of Work & Specific Tasks

The Contractor shall provide all labor, certified personnel, calibrated equipment, and materials necessary to perform the scheduled tasks outlined below. All frequencies and procedures must strictly adhere to UFM 3-570-06.

Task 1: GACP Test Measurements (Ref: UFM 3-570-06, Table 3-1)

• Action: Annotate the soil condition, and perform Potential Measurement at Each Test Station.

• Requirements, Locate reference electrode and take:

• One S/E potential measurement with the reference electrode placed directly over/adjacent to the protected structure at the location(s) nearest the anode(s)

• One S/E potential measurement with the reference electrode placed directly over/adjacent to the protected structure midway between anode(s)

• One anode-to-electrolyte potential measurement with the reference electrode placed directly over/adjacent to the anode with the anode lead disconnected

• Anode-to-structure current using (in order of preference): 1) a clamp-on milliammeter, 2) a multimeter measuring millivolts across a calibrated shunt, or 3) a multimeter connected in series measuring milliamperes

Task 2: ICCP Rectifier Operational Inspection (Ref: UFM 3-570-06, Table 3-1)

• Action: Perform operational inspections on all base rectifiers and impressed current power sources.

• Requirements:

• Record DC voltage and DC current output.

• Verify tap settings and operational status of fuses, diodes, and lightning arrestors.

• Perform a visual inspection of the rectifier cabinet, noting any physical damage, pest intrusion, or vegetation overgrowth (per Table 3-2 maintenance criteria).

Task 3: Pipeline Potential Measurements (Ref: UFM 3-570-06, Table 3-2)

• Action: Annotate the soil condition, andpPerform Potential Measurement of Pipeline as described in Requirements below.

• Requirements, Locate the reference electrode:

• Over the pipeline at all test stations and at all points where the structure can be contacted (where it enters/exits the ground, passes through a pit, or is exposed).

• Over the pipeline at least every 1,000 feet (305 meters) for pipelines off the installation.

• Over the pipeline at least every 500 feet (152 meters) for pipelines on the installation.

Task 4: Ground-Level Water Tank Potential Measurements (Ref: UFM 3-570-06, Table 3- 2)

• Action: Annotate the soil condition, and perform Potential Measurement of water storage tanks as described in Requirements below.

• Requirements, Locate the reference electrode:

• Next to the tank at four equally spaced locations around the tank circumference at compass points or as specified on a drawing.

• At a distance one tank radius away from the tank at eight equally spaced locations around the tank circumference.

Task 5: Underground Storage Tank Potential Measurements (Ref: UFM 3-570-06, Table 3-2)

• Action: Annotate the soil condition, and perform Potential Measurement of underground storage tanks as described in Requirements below.

• Requirements, Locate the reference electrode:

• Over the center and over each end of the tank.

• Over each end of the feed/return piping.

• Over the manhole, fill pipe, and vent pipe.

• Over all metallic structures in the area if readings indicate an isolated system is shorted to a foreign structure.

Task 6: Isolated Structures Potential Measurements (Ref: UFM 3-570-06, Table 3-2)

• Action: Annotate the soil condition, and perform Potential Measurement of isolated structures as described in Requirements below.

• Requirements, Locate the reference electrode:

• Take one S/E potential measurement on each side of all dielectric fittings/couplings without moving the reference electrode.

• Note: If the potential difference between measurements on each side of a dielectric coupling is less than 10 mV, verify its integrity using an isolation flange tester.

Task 7: Structures with Foreign Line Crossings Potential Measurements (Ref: UFM 3- 570-06, Table 3-2)

• Action: Annotate the soil condition, and perform Potential Measurement of foreign line crossings as described in Requirements below.

• Requirements, Locate the reference electrode:

• Over the foreign line at all points where it crosses the protected structure.

• Over the foreign line where it passes nearby the anode bed.

Task 8: Structures with Cased Crossings Potential Measurements (Ref: UFM 3-570-06, Table 3-2)

• Action: Annotate the soil condition, and perform Potential Measurement of foreign line crossings as described in Requirements below.

• Requirements, Locate the reference electrode:

• Over the protected structure on each side of all casings.

• Over each end of the casing on all casings.

• Note: If the casing is shorted or partially shorted to the pipeline and the potentials over the pipeline are depressed below the criteria described in UFM 3-570-06-Chapter 2, take document short.

Task 9: Waterfront Structure Potential Measurements (Ref: UFM 3-570-06, Table 3-2)

• Action: Annotate the tide level, and perform Potential Measurement of waterfront structure as described in Requirements below.

• Requirements, take measurements at all permanent reference electrodes, and locate portable reference electrodes:

• Adjacent to the structure at all test stations.

• Every 150 feet (46 meters) along a continuous length of sheet pile wall at both the surface and at the bottom.

• At other test points identified in maintenance manuals or past surveys.

Task 10: Perform Anode to Soil Potential Measurements for Remote Shallow Anode Bed (UFM 3-570-06, Table 3-3)

• Action: Measure Anode to Soil Potentials of Remote Shallow Anode Bed as described in requirements:

• Requirements, measure as described below:

• Measure anode-to-soil potentials at 2-foot (0.6-meter) intervals along the length of the anode bed, beginning 10 feet (3 meters) before the first anode and ending 10 feet (3 meters) past the last anode in the anode bed.

• Plot test results on graph paper to give a visual indication of the anode bed condition.

Taske 11: Perform Anode to Soil Potential Measurements for Distributed Shallow Anode Bed (UFM 3-570-06, Table 3-3)

• Action: Measure Anode to Soil Potentials of Distributed Shallow Anode Bed

• Requirements: Measure one anode to soil potential with the reference electrode located directly over each anode

Task 12: Perform Anode Circuit Current Measurement of Deep Anode Bed (UFM 3-570- 06, Table 3-3)

• Action: Perform Anode Circuit Current Measurement of Deep Anode Bed

• Requirements, measure as described below:

• Measure anode circuit current using (in order of preference): 1) a clamp-on milliammeter, 2) a multimeter measuring millivolts across a calibrated shunt, or 3) a multimeter connected in series measuring milliamperes.

• Measure the anode current for each anode if separate leads are available.

Task 13: Close-Interval Potential Survey (CIPS) Potential Measurement of Pipeline (UFM 3570-06, Table 3-5)

• Action: Perform a CIPS Potential Measurement of Pipeline.

• Requirements, measure as described below:

• Locate the reference electrode over the pipeline at intervals not to exceed the depth of the pipeline, normally every 3 to 5 feet (1 to 1.5 meters).

• Record the soil condition for comparison of past/future potential and current measurements.

Task 14: Close-Interval Potential Survey (CIPS) Potential Measurement of On Grade Storage Tanks (UFM 3-570-06, Table 3-5)

• Action: Perform a CIPS Potential Measurement of On Grade Storage Tank

• Requirements, measure as described below:

• Measure at permanent reference electrodes, if installed.

• Locate the reference electrode Next to the tank every 6 feet (1.8 meters) around the tank circumference.

• Locate the reference electrode At a distance one tank radius away from the tank at eight equally spaced locations around the tank circumference.

• Locate the reference electrode In pull tubes at intervals of 3 to 5 feet (1 to 1.5 meters), if installed.

• Record the soil condition for comparison of past/future potential and current measurements.

Task 15: Close-Interval Potential Survey (CIPS) Potential Measurement of Underground Storage Tanks (UFM 3-570-06, Table 3-5)

• Action: Perform a CIPS Potential Measurement of Underground Storage Tank

• Requirements, measure as described below:

• Locate the reference electrode Every 3 feet (1 meter) over the tank.

• Locate the reference electrode At least every 3 feet (1 meter) over feed and return piping.

• Locate the reference electrode Over the manhole, fill pipe, and vent pipe.

• Locate the reference electrode Over all metallic structures in the area if readings indicate that an isolated system is shorted to a foreign structure.

Task 16: Close-Interval Potential Survey (CIPS) Potential Measurement of Isolated Structure (UFM 3-570-06, Table 3-5)

• Action: Perform a CIPS Potential Measurement of Isolated Structure

• Requirements, measure as describe below:

• Take one S/E potential measurement on each side of all dielectric fittings/couplings without moving the reference electrode.

• Record the soil condition for comparison of past/future potential and current measurements.

• Note: If the potential difference between measurements on each side of a dielectric fitting/coupling is <10 mV, verify its integrity using an isolation flange tester.

Task 17: Close-Interval Potential Survey (CIPS) Potential Measurement of Structure with Foreign Line Crossing (UFM 3-570-06, Table 3-5)

• Action: Perform a CIPS Potential Measurement of Structure with Foreign Line Crossing

• Requirements, as described below:

• Locate the reference electrode Over the foreign line at all points where it crosses the protected structure.

• Locate the reference electrode Over the foreign line where it passes near the anode bed.

Task 18: Close-Interval Potential Survey (CIPS) Potential Measurement of Structure with Cased Crossing (UFM 3-570-06, Table 3-5)

• Action: Perform a CIPS Potential Measurement of Structure with Cased Crossing

• Requirements, as described below:

• Locate the reference electrode over each end of the casing on all casings.

• Note: If the casing is shorted or partially shorted to the pipeline and the potentials over the pipeline are depressed below criteria described in Chapter 2, high priority must be given to clear the short.

Task 19: Water Tank Calibration Potential Measurement-Walls (Ref: UFM 3-570-06, Table 3-7)

• Action: Measure Potential of Water Tank Walls

• Requirements, as described below:

• Position the reference electrode near the water surface, at mid-depth, and at the bottom next to the tank wall directly adjacent to each anode string.

• Position the reference electrode near the water surface, at mid-depth, and at the bottom next to the tank wall midway between two adjacent anode strings.

• Measure and compare the potential of each permanent reference electrode to a portable reference electrode to determine its accuracy.

• Annotate the water level for comparison to past and future measurements

Task 20: Water Tank Calibration Potential Measurement-Bottom (Ref: UFM 3-570-06, Table 3-7)

• Action Measure Potential of Water Tank Bottom

• Requirements, as described below:

• Locate the reference electrode 2 inches (5 centimeters) above the tank bottom directly beneath each anode string.

• Locate the reference electrode 2 inches (5 centimeters) above the tank bottom and as far away from the anode strings as possible.

• Measure and compare the potential of each permanent reference electrode to a portable reference electrode to determine its accuracy.

• Annotate the water level for comparison to past and future measurements

Task 21: Water Tank Calibration Potential Measurement-Metallic Riser (Elevated Water Tanks) (Ref: UFM 3-570-06, Table 3-7)

• Action: Measure Potential of Elevated Water Tank Riser

• Requirements, as described below:

• Locate the reference electrode adjacent to the riser wall at intervals of 5 feet (1.5 meters) from the top to the bottom of the riser.

• Measure and compare the potential of each permanent reference electrode to a portable reference electrode to determine its accuracy.

• Annotate the water level for comparison to past and future measurements

Task 22: Resistance Bond Checks (Ref: UFM 3-570-06, Paragraph 3-2.8)

• Action: Inspect and measure current flow across all resistance bonds (critical and non-critical) and reverse-current switches.

• Requirements: Confirm the bond is intact, measure the direction and magnitude of the current, and verify that electrical isolation or stray current mitigation is functioning.

Task 23: Annual Corrosion Survey-GACP and ICCP Systems (Ref: UFM 3-570-06, Table 3-1 & 3-3, Paragraphs 3-1.1 and 3-2.3)

• Action: Conduct a comprehensive installation-wide potential survey to verify all protected structures meet NACE/UFC criteria (e.g., -850 mV Instant-Off).

• Requirements:

• Measure structure-to-soil potentials at all designated test stations using a calibrated reference electrode.

• For ICCP systems, record both "ON" and "INSTANT-OFF" potentials (requiring current interruption).

• For Galvanic systems, measure 100% of test stations (if practical) or a minimum statistical sample as directed by the CP4.

Task 24: Direct Current Voltage Gradient (DCVG) Survey (Ref: UFC 3-570-06, Paragraph 3-2.9)

• Action: Conduct cell-to-cell voltage gradient surveys to locate specific coating holidays (defects).

• Requirements: Utilize the "leapfrog" method with two reference cells and a current interrupter to pinpoint the exact location and estimate the severity of underground shorts or bare steel.

Task 25: Leak Survey (Ref: UFC 3-570-06, Paragraph 3-2.7)

• Action: Provide Leak Survey of pipeline or tank leak excavation.

• Requirements, as described below:

• Measure the pH of the soil where it contacts the pipeline or tank.

• Measure the “as found” S/E potential of the pipe or tank where it contacts the soil.

“As found” means before any adjustments of existing CP systems, addition of any form of CP, or installation of isolation or bonding components.

• Determine the cause of the leak.

• Evaluate the condition and determine appropriate repairs to the pipe or tank coating system.

3.0 Applicable Standards & Criteria

All work must strictly adhere to the most current versions of the following industry and military standards:

• UFM 3-570-06: O&M: Cathodic Protection Systems

• AMPP/NACE SP0169: Control of External Corrosion on Underground or Submerged

Metallic Piping Systems

• AMPP/NACE SP0193: External Cathodic Protection of On-Grade Carbon Steel

Storage Tank Bottoms

• AMPP/NACE SP0196: Galvanic Anode Cathodic Protection of Internal Submerged

Surfaces of Steel Water Storage Tanks

• AMPP/NACE SP0200: Steel Cased Pipeline Practices

• AMPP/NACE SP0207: Performing CIS and DC Surface Potential Gradient Surveys on

Buried or Submerged Metallic Pipelines

• AMPP/NACE SP0285: External Corrosion Control of UDST System by Cathodic

Protection

• AMPP/NACE SP0388: Impressed Current Cathodic Protection of Internal Submerged

Surfaces of Carbon Steel Water Storage Tanks

• AWWA D104: Automatically Controlled, Impressed-Current Cathodic Protection for the Interior of Steel Water Tanks

• AWWA D106: Sacrificial Anode Cathodic Protection System for Interior Submerged Surfaces of Steel Water Storage Tanks

4.0 Contractor Qualifications (Certifications)

The Contractor must utilize AMPP (formerly NACE) certified personnel to ensure compliance with DoD engineering protocols:

• Lead CP Specialist (AMPP CP4 - Cathodic Protection Specialist): Responsible for evaluating all CIS/DCVG data, signing/stamping the Final Report, and providing assessments for all systems, and correction solutions for failing systems.

• Field Supervisory Technician (AMPP CP3 - Cathodic Protection Technologist): Supervises field crews and troubleshoots complex system failures.

• Field Technician (AMPP CP2 - Cathodic Protection Technician): Executes routine field checks and annual potential readings.

5.0 Deliverables & Schedule

Deliverable Description Due Date

1. Itemized Corrosion Survey Report Submission of

Itemized Survey made up of selected Tasks1 through 22, 24 and 25, as required by individual task order

30 days post-fieldwork

2. Annual Corrosion Survey Report Submission of Corrosion Survey (Task 23).

Comprehensive roll-up of Tasks 1 through

22. Must include all raw data, graphs, and a prioritized list of failing structures.

30 days post-fieldwork

3. Mitigation and Repair Plan Formal CP4-stamped recommendations and cost estimates, for list of deficiencies identified during field survey.

Submitted with Itemized Survey or Annual Corrosion Survey Report

Note: All operational scheduling and timestamps must be recorded in the Central Standard Time (CST)(Chicago) Time Zone.

6.0 Security & Operational Constraints

• Information Security: All infrastructure locations and vulnerability data must be handled as Controlled Unclassified Information (CUI).

• Data Handling Policy (PII/PHI): The contractor is strictly prohibited from collecting, processing, searching for, or generating any Personally Identifiable Information (PII) or Protected Health Information (PHI) during this contract.

• Access: Contractor personnel must pass standard background checks for unescorted installation access.