Site Inspections

Simplify your job and let Minotaur arrange for the removal, transport and disposal of contaminants.

To ensure long-term environmental protection, your Stormceptor® units must be serviced as determined by the regularly scheduled inspections in your individual Minotaur program. Trained technicians utilize specialized tools and equipment to complete necessary Stormceptor® inspections. Minotaur has developed and perfected many proprietary techniques and processes. All of our techniques and technologies are developed to make servicing your Stormceptor® cost-effective. 

The servicing frequency required will vary with the amount of source material on your site (number of spills, amount of sediment, etc.) Servicing should be performed immediately after a spill has occurred, and when the sediment depth in the Stormceptor® reaches its maximum allowable value. Oils/hydrocarbons are removed separately from sediments. In most cases, no entry into the unit is required, so servicing is most often performed from the surface. Minotaur can provide confined space entry when needed.

In order to comply with the environmental section of your site plan agreement and your MOE Certificate of Approval, you will need to continue monitoring your unit(s) and recording the results. Minotaur offers Stormceptor® inspections in groups of 6 at a fixed cost to the owner. There is no prepayment required, and we bill as each inspection is completed. Signing up for an Inspection Agreement is cost-effective and convenient.

When an unreported incident occurs (i.e. engine oil dumped in a catch basin; gasoline or diesel fuel tank leak), the scheduled inspection will alert you to the fact that an unreported spill has taken place. Immediate action will reduce the risk of a discharge and the resulting costly environmental cleanup costs. Inspections will also reveal obstructions at the inlet, as well as any damage or irregularities present that will impede the functionality of the unit.


Sediment levels are indicated on the inspection report, as is the recommended course of action. When the maximum allowable sediment level for your Stormceptor® unit has been reached, the sediment must be removed. You must authorize Minotaur to arrange for the removal, transport and disposal of the contaminants.

The construction period produces substantial amounts of silt and grit. Units installed on construction sites will require post-construction service, followed by close monitoring to determine the site-specific accumulation rate. The monitoring program, rather than arbitrary service, results in considerable cost savings. Units located in these unstable environments may initially require semi-annual servicing. Post-construction, a serviced unit will accumulate sediment at a considerably slower rate.


When oils are detected during a Minotaur inspection, they are indicated on the inspection report. You must then authorize Minotaur to arrange for the removal, transport and disposal of these contaminants. Minotaur will provide this service and assist you in dealing with the appropriate authorities. Minotaur can also install absorbent products that qualify as an immediate response action.

There is no allowable limit for oils/hydrocarbons in any storm water oil/grit separator unit, in Ontario. Units installed on construction sites may require post-construction service, followed by close monitoring to determine the presence and/or accumulation rates of silts and hydrocarbons.

Petroleum waste products (oil/chemical/fuel spills) collected in a storm water oil/grit separator need to be removed by a licensed waste management company. In Ontario, a Ministry of the Environment "Generator Number" is required for the transport and disposal of the waste. Minotaur is here to make the whole procedure easy for you, and can assist in completing the Generator Registration Report required by the Ministry of the Environment (MOE).

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