Reporting and documentation

Reporting a spill is not an admission of failure; it is a legal duty and a practical necessity. Regulators need to know about spills so that they can protect drinking water, warn downstream users, send help and make sure cleanup is done properly. Companies need internal reports to learn from spills and to show due diligence. Failing to report a reportable spill is often treated more seriously than the spill itself. This lesson covers who must be told, when, what information to give, and how to document the spill from start to finish.

Internal reporting

Every spill, however small, should be reported inside the organization. The worker who discovers it tells the supervisor or spill coordinator immediately, as lesson 7 explained. The coordinator decides whether the spill is reportable to regulators and makes those calls. Small spills that are not reportable outside the company are still recorded, because patterns of small spills reveal leaking equipment, poor procedures or training gaps before a large spill happens. Many sites use a simple spill log or form that takes a few minutes to complete.

Who to call outside the company

Calls go in a set order. If there is a fire, an injury or an immediate danger to people, call 911 first. Then the spill reporting line for the jurisdiction, then any other agencies the rules require, then the sewer authority if a sewer was affected, and finally anyone downstream who may be affected, such as a neighbouring water intake, if the plan or the regulator asks you to. Your site plan should list the numbers, the triggers for each call and who is authorized to make them.

Reporting in Canada

Each province sets its own reporting triggers and lines. In Ontario, spills of pollutants that cause or are likely to cause an adverse effect must be reported without delay to the Spills Action Centre at 1-800-268-6060 and to the municipality; a regulation sets out some exemptions for certain small spills. In British Columbia, the Spill Reporting Regulation requires an immediate call to the provincial spill line at 1-800-663-3456 for spills above the amounts listed by substance type in its schedule, and for any spill that enters or is likely to enter a body of water regardless of amount; a written report follows within 30 days and an end-of-spill report after the response. In Alberta, releases that may cause an adverse effect must be reported as soon as possible to the provincial environment ministry, or to the energy regulator for energy facilities, followed by a written report. Other provinces have similar systems. Under the federal Fisheries Act, a deposit or serious and imminent danger of a deposit of a deleterious substance in water frequented by fish must be reported; in several provinces, a call to the provincial spill line also satisfies the federal reporting through agreements between governments.

Checking a reportable quantity

Where reporting depends on quantity, someone must estimate how much was released, quickly and honestly. Estimates are made from the container size and how much is left, the area and depth of the spill as in lesson 1, flow rates and durations as in lesson 7, or gauge readings before and after. When in doubt, report: regulators would much rather receive a report that turns out to be below a threshold than miss one that was above it. The example below shows a reportable quantity check for US federal rules; Canadian provincial thresholds are usually set in litres or kilograms by substance type and work the same way.

# CERCLA reportable quantity (RQ) check for a release (US federal; RQs in pounds).
RQ_LB = {"benzene": 10, "xylene": 100, "ammonia": 100, "toluene": 1000,
         "sulfuric acid": 1000, "ethylene glycol": 5000}
def check(substance, kg_released):
    lb = kg_released * 2.2046
    rq = RQ_LB[substance]
    status = "REPORT to the NRC" if lb >= rq else "below the federal RQ (check state rules)"
    print(f"{substance:<16} {kg_released:>6.1f} kg = {lb:7.1f} lb; RQ {rq:>5} lb -> {status}")

check("benzene", 5)            # 11 lb
check("ammonia", 30)           # 66 lb
check("sulfuric acid", 500)    # 1,102 lb
check("ethylene glycol", 400)  # 882 lb

benzene             5.0 kg =    11.0 lb; RQ    10 lb -> REPORT to the NRC
ammonia            30.0 kg =    66.1 lb; RQ   100 lb -> below the federal RQ (check state rules)
sulfuric acid     500.0 kg =  1102.3 lb; RQ  1000 lb -> REPORT to the NRC
ethylene glycol   400.0 kg =   881.8 lb; RQ  5000 lb -> below the federal RQ (check state rules)

Note that the federal threshold for ethylene glycol is high, but a spill of it to a creek could still be reportable under state or provincial rules and still kill fish. Thresholds are a minimum for reporting, not a measure of harm.

What to say when you call

Regulators need the same basic facts every time. Have them ready before you call, and write down the time of the call, the name of the person you spoke to and any reference number they give you. Many agencies record calls.

Report what you know and say clearly what you do not yet know. If the estimate changes, or the spill turns out to have reached water when you thought it had not, call back with an update. Honest, prompt and updated reports build trust with regulators; inaccurate or delayed ones damage it.

Written reports and follow-up

Many provinces require a written report after the initial call, for example within 30 days in British Columbia, and Alberta requires a written report within days of the release. The regulator may also ask for additional reports, sampling results or a cleanup plan. Keep copies of everything submitted.

Documenting the spill

Good documentation starts during the response. A designated person should keep a log of times, actions and decisions. Take photos of the spill, the source, the extent, drains and water before, during and after cleanup, with something in the frame for scale. Sketch the area with distances and the direction of flow. Record estimates of volume released and recovered, the equipment used, the people involved and the agencies called. After the response, complete the site spill report and attach the log, photos, waste records and copies of regulatory reports.

These records serve several purposes. They support accurate regulatory reports and answers to follow-up questions. They help the investigation find the cause. They show due diligence if the company is prosecuted. They support insurance claims and cost recovery from others who caused the spill. And they build a history that helps the company see trends and improve.

Who is allowed to make the call

Plans should say who is authorized to report to regulators, but they must never stop a worker from reporting when no one else is available. If the coordinator cannot be reached and the spill is clearly reportable, the person in charge at the scene should make the call and inform management afterwards. Delaying a required report while waiting for permission is a common reason companies are prosecuted for late reporting. Some laws also protect employees from reprisal for reporting environmental problems in good faith.

Learning from reports

The spill log is a source of improvement, not just a record. Reviewing it every few months shows where spills keep happening, which equipment leaks, which procedures are skipped and which shifts or tasks have more incidents. A simple tally by location and cause often reveals that a few sources account for most spills. Fixing those sources, and sharing the results with the people who reported the spills, encourages more reporting and fewer spills.

When a spill is investigated, the report should go beyond the immediate cause, such as a split hose, to the underlying causes, such as no hose inspection schedule or a supplier who used the wrong hose rating. HSE-403 covers incident investigation and root cause analysis. Corrective actions should be assigned, given due dates and tracked to completion, and the spill plan updated where the investigation shows a gap.