TWO OF THE MAJOR THINGS WE LOOK AT:

HYDRAULIC
INTEGRITY

The tank’s ability to retain product without compromising tank bottom, shell, and other joint conditions.

STRUCTURAL
INTEGRITY

The tank’s ability to remain freestanding, with or without product, under the conditions of its design basis.

KEY INSPECTION SERVICES

STI SP001 External / Internal

STI SP001 is a standard developed by the Steel Tank Institute (STI) for the inspection and maintenance of above-ground storage tanks (ASTs). This standard provides guidelines for the inspection and evaluation of the tank's integrity, including its foundation, shell, roof, and accessories such as vents and piping. As a tank owner, it is important to ensure that your tanks are safe and reliable for the storage of your valuable assets. The best way to achieve this is to perform regular inspections according to the STI SP001 standard.

An STI SP001 inspection involves a comprehensive evaluation of the tank's condition, including the detection of any leaks, corrosion, or other issues that could affect its performance or integrity. The inspection is conducted by trained professionals who follow strict guidelines to ensure that all aspects of the tank are evaluated thoroughly and accurately.

By performing an STI SP001 inspection, you can identify potential issues before they become major problems. This proactive approach can save you time and money in the long run, as it helps you avoid costly repairs or even the need for tank replacement.

In addition, regular inspections can help you maintain compliance with industry regulations, such as those set forth by the Environmental Protection Agency (EPA) and Occupational Safety and Health Administration (OSHA). Failing to comply with these regulations could result in regulatory violations, fines, and legal liabilities.

At the end of the inspection, you will receive a detailed report outlining any issues that were identified during the inspection, along with recommendations for repairs or maintenance. This information will enable you to make informed decisions about the upkeep of your tanks, ensuring that they remain safe, reliable, and compliant with industry standards.

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API 653 Storage Tank

API 653 is a widely recognized standard for the inspection, repair, alteration, and reconstruction of above-ground storage tanks (ASTs). This standard is developed and published by the American Petroleum Institute (API) to ensure the integrity and safety of storage tanks that contain petroleum products and chemicals.

As a tank owner, you have the responsibility to ensure that your tanks are safe and reliable for the storage of your valuable assets. The best way to ensure the integrity of your tanks is to perform regular inspections according to API 653 standards.

An API 653 inspection involves a thorough examination of the tank's structural and hydraulic integrity including the foundation, bottom, shell, roof, and appurtenances such as vents and piping. The inspection evaluates the tank's internal and external surfaces for corrosion, leaks, and overall condition.

By performing an API 653 inspection, you can identify potential issues before they become major problems, which could result in costly repairs, environmental damage, or even catastrophic failures. Additionally, regular inspections can extend the life of your tanks and improve their overall performance.

If you are a tank owner, it is critical that you schedule an API 653 inspection to ensure that your tanks meet industry standards and regulations. Failing to perform regular inspections could result in regulatory violations, fines, and legal liabilities.

At the end of the inspection, you will receive a detailed report outlining any issues that were identified during the inspection, along with recommendations for repairs or maintenance. This information will enable you to make informed decisions about the upkeep of your tanks, ensuring that they remain safe, reliable, and compliant with industry standards.

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API 510 Pressure Vessel

API 510 is a standard published by the American Petroleum Institute that provides guidelines for the inspection, repair, alteration, and rerating of in-service pressure vessels. The standard outlines the requirements for ensuring the continued safe operation of pressure vessels, including rules for inspection intervals, criteria for determining the fitness-for-service of a vessel, and procedures for repairing or altering a vessel as needed.

So why might you need an API 510 inspection? There are a few key reasons:

Regulatory Compliance: Many regulatory agencies require regular inspections of pressure vessels to ensure compliance with safety standards. API 510 is often the standard referenced by these agencies.
Risk Management: Even if inspections aren't strictly required, regular inspections can help you identify potential issues with your pressure vessels before they become major problems. This can help you mitigate risk and avoid costly downtime or repairs.
Asset Optimization: By ensuring the safety and reliability of your pressure vessels, you can optimize your assets and maximize their lifespan. This can help you save money over the long term and improve your bottom line.

At PEI, we understand the importance of API 510 inspections for asset owners. Our team of experienced inspectors can help you ensure the safety and reliability of your pressure vessels through regular inspections and timely repairs.

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API 570  Piping

API 570 is a standard published by the American Petroleum Institute that provides guidelines for the inspection, repair, alteration, and rerating of in-service piping systems.

The standard outlines the requirements for ensuring the continued safe operation of piping systems, including rules for inspection intervals, criteria for determining the fitness-for-service of piping, and procedures for repairing or altering piping systems as needed. Learn more -->

Steel Water Storage Tanks

A water tank inspection based on the AWWA D103-09 standard is a comprehensive evaluation process aimed at ensuring the safety, structural integrity, and water quality of welded steel water storage tanks used for potable water supply. This inspection begins with a thorough visual assessment of the tank's exterior and, if possible, its interior to identify visible signs of damage, corrosion, and coating deterioration. Coatings are closely examined to prevent corrosion, while safety features like access points and vent systems are checked for compliance and functionality.

In addition to structural evaluations and water quality testing, the inspection process involves a review of regulatory compliance to ensure adherence to AWWA D103-09 and relevant local, state, and federal regulations. The findings are documented in a detailed inspection report, outlining any necessary repairs, maintenance recommendations, and a schedule for corrective actions. Regular inspections at intervals prescribed by the standard are vital for preserving the tank's longevity and the safety and quality of the stored potable water supply.

California 22 CCR Hazardous Waste Inspections

If you generate, transport, treat, or dispose of hazardous waste in California, you are subject to regulations under the California Code of Regulations (CCR) Title 22. These regulations require regular inspections of facilities that handle hazardous waste, known as California 22 CCR Hazardous Waste Inspections.

What are California 22 CCR Hazardous Waste Inspections?

California 22 CCR Hazardous Waste Inspections are conducted to ensure compliance with the state's hazardous waste regulations. These inspections involve a review of your hazardous waste management practices, documentation, and facility operations to identify potential violations and ensure that you are properly managing and disposing of hazardous waste.

Why might you need a California 22 CCR Hazardous Waste Inspection?

There are several reasons why you might need a California 22 CCR Hazardous Waste Inspection:
Regulatory Compliance: If you generate, transport, treat, or dispose of hazardous waste in California, you are required by law to comply with the state's hazardous waste regulations. Failure to do so can result in fines, penalties, and legal action.
Risk Management: Hazardous waste poses a significant risk to human health and the environment if not properly managed and disposed of. Regular inspections can help you identify potential issues with your hazardous waste management practices and take corrective action before they become major problems.
Reputation: Environmental stewardship is increasingly important to consumers, investors, and regulators. Demonstrating a commitment to responsible hazardous waste management can help protect your reputation and enhance your brand.

At PEI, we understand the importance of California 22 CCR Hazardous Waste Inspections for asset owners. Our team of experienced environmental consultants can help you ensure compliance with hazardous waste regulations, mitigate risk, and protect your reputation.

Contact us today to learn more about how we can help you protect the environment and your business.

CALarp Seismic Assessments

California Accidental Release Prevention (CalARP) requires seismic assessments in order to provide reasonable assurance that a release of Regulated Substances as listed in California Code of Regulations (CCR) Title 19 Division 2 Chapter 4.5 having offsite consequences (caused by a loss of containment of pressure boundary integrity) would not occur as a result of an earthquake.

The seismic assessment will address each component’s susceptibility to the following site-specific seismic hazards:
- Ground shaking, including local site amplification effects
- Fault rupture
- Liquefaction and lateral spreading
- Seismic settlement
- Landslide
- Tsunamis and seiches

NFPA 25 - Water-Based Fire Protection Systems

NFPA 25 - Standard for the Inspection, Testing, and Maintenance of Water-Based Fire Protection Systems: While NFPA 25 primarily focuses on water-based fire protection systems, it also addresses the inspection and maintenance of tanks related to these systems, such as water storage tanks used for fire protection. Key aspects of tank inspections under NFPA 25 include:

Tank Condition: NFPA 25 requires regular inspections to ensure the condition of water storage tanks, including checking for corrosion, leaks, and structural issues that may affect their functionality.
Water Quality: Inspections assess the quality of water inside storage tanks, ensuring that it meets specified standards for fire protection purposes.
Valves and Controls: The standard covers inspections of valves, controls, and alarms associated with water storage tanks to ensure they operate correctly during fire events.
Access and Egress: NFPA 25 includes requirements for access to and egress from water storage tanks for inspection and maintenance purposes, emphasizing safety for personnel.
Hydraulic Calculations: Inspections may involve verifying that the tank's hydraulic calculations, including water supply and demand, are accurate and up to date.
Documentation: The standard mandates proper record-keeping of inspection, testing, and maintenance activities related to water storage tanks.

NFPA 30 - Flammable and Combustible Liquids

NFPA 30 - Flammable and Combustible Liquids Code: NFPA 30 focuses on the safe storage and handling of flammable and combustible liquids, including the inspection of tanks used for such liquids. Tank inspections in accordance with NFPA 30 typically cover:

Tank Integrity: NFPA 30 emphasizes the importance of ensuring that tanks are free from leaks, corrosion, or structural deficiencies that could compromise their integrity. Regular visual inspections are conducted to identify visible defects on the tank's exterior.
Secondary Containment: The code requires secondary containment systems for tanks storing certain hazardous liquids. Inspections verify the integrity of these containment systems, such as dikes or berms, to prevent spills and leaks.
Fire Protection: NFPA 30 outlines fire protection requirements for tanks, including the installation and maintenance of fire suppression systems, such as foam or sprinkler systems.
Venting and Pressure Relief: Inspections assess the condition and functionality of tank venting and pressure relief devices to prevent overpressure or vacuum conditions inside the tank.
Labeling and Identification: The standard mandates proper labeling and identification of tanks, including marking tanks with their contents and associated hazards.
Emergency Response: NFPA 30 includes provisions for emergency response planning, ensuring that tanks are equipped with emergency shutoffs and spill control measures.

NFPA 58 - Liquefied Petroleum Gas

NFPA 58, also known as the Liquefied Petroleum Gas Code, is a comprehensive standard developed by the National Fire Protection Association (NFPA) that addresses the safe storage, handling, transportation, and use of liquefied petroleum gas (LPG), commonly known as propane. Evaluations conducted in accordance with NFPA 58 are essential for ensuring the safe installation and operation of propane systems. Here are key aspects of NFPA 58 evaluations:

System Compliance: NFPA 58 evaluations ensure that propane systems, including storage tanks, distribution systems, and equipment, comply with the code's requirements. This includes proper installation, sizing, and safety measures.
Tank Inspections: The code mandates periodic inspections of propane storage tanks to assess their structural integrity, corrosion, and safety features. Inspections also include checking for proper tank placement and clearances.
Safety Procedures: NFPA 58 evaluations involve reviewing safety procedures, such as emergency shutoffs, leak detection, and odorant levels, to prevent and respond to potential propane leaks and hazards.
Training and Qualifications: Ensuring that personnel working with propane systems have the necessary training and qualifications as required by the code.
Cylinder Storage: Evaluations cover the proper storage and handling of propane cylinders, including regulations for their placement and securing.
Transportation Safety: Addressing safety measures for transporting propane cylinders and bulk storage tanks, including vehicle and loading/unloading procedures.
Emergency Response: Evaluations include assessing emergency response plans and procedures for dealing with propane-related incidents, leaks, or fires.

Fiberglass Tank & Pipe Institute’s Recommended Practice FTPI-1

The Fiberglass Tank & Pipe Institute (FTPI) has developed Recommended Practice FTPI-1, which provides guidelines for the inspection and maintenance of fiberglass reinforced plastic (FRP) tanks and piping systems. An inspection conducted in accordance with FTPI-1 typically involves a comprehensive assessment of FRP tanks or piping systems to ensure their structural integrity, safety, and compliance with industry standards. Here are the key aspects of an inspection conducted in accordance with FTPI-1:

Visual Inspection: The inspection begins with a thorough visual examination of the FRP tank or piping system. Inspectors look for visible signs of damage, wear, or corrosion on the exterior surfaces. This includes checking for cracks, blisters, delamination, surface erosion, or any other defects.
Leak Testing: If applicable, leak testing may be performed to check for any signs of leaks in the tank or piping. This can include conducting hydrostatic or pneumatic tests to ensure that the system is watertight or airtight.
Internal Inspection: For tanks, an internal inspection may be necessary to assess the condition of the interior surfaces. This could involve entering the tank (if safe and feasible) or using remote inspection tools to examine the interior for defects, corrosion, or degradation.
Material Assessment: Inspectors evaluate the material composition of the FRP tank or piping system to confirm that it meets the specified standards and is appropriate for the intended service. This may involve verifying the resin type, fiber reinforcement, and liner material.
Structural Assessment: The inspection includes assessing the structural integrity of the tank or piping. This involves checking for proper anchoring, support, and alignment to prevent issues like sagging, bulging, or misalignment.
Corrosion Resistance: FRP tanks are known for their corrosion resistance, but the inspection verifies that the material has not been compromised and is still effectively protecting against chemical corrosion.
Documentation Review: Inspectors review documentation related to the tank or piping system, including design specifications, installation records, maintenance history, and any previous inspections or repairs.
Safety Features: Assessing the presence and functionality of safety features such as venting systems, access hatches, emergency shutoffs, and protective coatings, ensuring they meet safety standards.
Recommendations and Reporting: Based on the findings, the inspection report provides recommendations for any necessary repairs, maintenance, or modifications to ensure the continued safe and effective operation of the FRP tank or piping system. This report may include a schedule for corrective actions.

HERE'S WHAT WE CAN DO

Our small knit is dedicated to working alongside you every step of the process. PEI inspections can include:

SHELL THICKNESS CALCULATIONS 

CORROSION EVALUATIONS

SHELL SETTLEMENT SURVEY

SECONDARY CONTAINMENT EVALUATION

CAD DRAWINGS OF COMPONENTS

API 653 / STI-SP001 CHECKLISTS

SEISMIC CALCULATIONS

NEXT INSPECTION CALCULATIONS

ROOF SCAFFOLD HITCH CERTIFICATIONS

VENTING CALCULATIONS

MFL TANK FLOOR SCAN

3D SCANNING AND ANALYSIS

THINGS TO WATCH OUT FOR

Fixed roof damage
FIXED ROOF DAMAGE

Over Pressure Event
Damage to Frangible Roof Joint

Roof corrosion
ROOF CORROSION

Carbuncle Corrosion
Starts as Blisters
Results in Holes

Access structure damage
ACCESS STRUCTURE CORROSION

Handrails
Spiral Stairways
Platform Supports

Rolling roof damage
ROLLING LADDER FAILURE

High winds lead to roof displacement
Rolling ladder actuator 1 5/8” above grating

SHELL

Pitting; Corrosion; Holes;
Corrosion Under Insulation

TANK BOTTOM: SOIL SIDE CORROSION

Key factor in controlling inspection interval
Repair solution: patch plates or installing a new double bottom

TANK BOTTOM: PRODUCT SIDE CORROSION

Corrosion pitting due to water or sludge
Product-side & soil-side corrosion in close proximity
Repair solution: Patch plates or puddle welds

FOUNDATION SETTLEMENT

Uniform Settlement
Rigid Body Tilt
Edge Settlement

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