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Demaco Corporation
Engineering, Construction, Maintenance, and Chemicals Terminal

In today's world, environmental concerns are everyone's business. At Demaco, we have always been sensitive to the well-being of the community at large. That is why our safety procedures for receiving, storing, and dispatching meet or exceed the most stringent in the industry. It's smart to be environmentally sensitive. We live here too! We are careful because we truly care about our community, its people, and our environment.


Clean Water Act(40 CFR 112)
Oil Pollution Prevention(SPCC). Demaco is responsible for properly instructing its personnel in the operation and maintenance of equipment to prevent the discharges of oil and applicable pollution control laws, rules and regulations. Demaco conducts spill prevention briefings to assure adequate understanding of the SPCC Plan for this facility.
Clean Water Act(40 CFR 125.104)
Best management practices associated with NPDES. Discharges that use, manufacture, store, handle, or discharge any toxic pollutants or hazardous pollutants that could result in significant amounts of pollutants reaching the waters of the U.S.
Resource Conservation and Recovery Act(RCRA)(40 CFR 264.16)
Hazardous waste management procedures. Ensures that facility personnel are able to respond effectively to emergencies by familiarizing them with emergency procedures, emergency equipment, and emergency systems.
Oil Pollution Act(40 CFR 120.20)
Demaco is a Terminal facility regulated under 40 CFR Part 112.20, which covers potential threats of substantial harm to the environment through discharge of oil or hazardous substances on navigable waters or adjoining shorelines. Demaco is required to prepare and submit facility-specific response plans to EPA in accordance with Appendix F of 40 CFR Part 112.

In order to operate a chemicals terminal, Demaco must have air permits for its storage tanks, fire pumps, and emergency generators. We fully comply with these requirements. Operation of the dock facilities is regulated by the USCG. We have an approved USCG OPA plan.

Special points of Interests:

  • Demaco has submitted OPA plans both to the EPA and USCG.

  • Demaco has submitted an SPCC Plan.

  • Demaco has submitted a BMP.

  • Demaco trains its personnel on a yearly basis on these requirements.


Quality, Safety and Health Observations
Unloading vessels requires that employees be knowledgeable, trained, and certified. Many parties monitor our operations: the US coast guard, OSHA, our clients, and you, the end-user. Therefore, we concentrate on ensuring that our work is performed correctly the first time. This job cannot be done without check lists or written instructions, no matter how many times performed previously. The supervisor prepares a 14 page written procedure to provide guidance on what to do from beginning to end. These procedures cover all contingencies including, for example, product spills into ocean water, fires, personal injuries, product contamination with sea water, etc. We must be prepared for all these possibilities. 

Quality Assurance

Many products handled at our Terminal are used by the pharmaceutical and food-processing industries. Due care in the handling of these products must be observed by all employees. How do we assure our clients that we care about and observe quality?

  • Pipeline Cleaning: Multi-product pipelines must be clean prior to transferring product through them. A record is kept.
  • Product Identification: All products aboard the vessel are positively identified.
  • Product Sampling: All products shall be sampled. Unloading may not take place until positive results are received from the laboratory.
  • Sample Taking: Clean, sanitized instruments are used.
  • Lot Numbers: A new lot number is assigned by our client.
  • Rejected product: Client is notified. Unloading may not take place.
  • Flushings: Prior to transferring a product to the receiving tank, the pipeline is flushed clean into a cargo tank.
  • Security: Valves are padlocked to deter tampering.
  • Nitrogen Use: Nitrogen (not air) is used to empty hoses and pipelines into receiving tank to prevent fire hazards and contamination of the product.
  • Alcohol/drug abuse: Strictly prohibited. Personnel must be alert at all times.

Cargo Tank Loading:

Cargo Tank Selection and Inspection
Our client selects cargo tanks to transport their products through Puerto Rico's highways. These vehicles must comply with strict federal regulations. The compatibility of the material of construction of the tank with the product to be loaded is one of the most important aspects to consider when selecting cargo tanks. Upon arrival at the Terminal we conduct a rigorous inspection of each cargo tank. There are five inspections that each tank must have undergone prior to being sent to us for loading: leakage, thickness, visual external, visual internal, and pressure. We are not responsible for conducting these inspections, but we are responsible for ensuring that they have been performed. Each inspection date is entered in Section 1A of the inspection form. The material of construction is checked next. What would happen if we load a product in a non-compatible tank? An explosion, disintegration or product contamination could occur. The maximum loading weight to be loaded is also checked. If you ask for 7,000 gallons of a product and receive 6,000 gallons instead, it is because we can not exceed the maximum loading weight as stated in the cargo tank's specification plate. Severe fines are imposed if we surpass the maximum loading weight.