What is the HOT reporting limit for TPH?

The reporting limit for total petroleum hydrocarbons (TPH) under the Oregon Heating Oil Tank (HOT) program is set at 50 parts per million (ppm). This means that if a site or tank shows TPH concentrations at or above this threshold, it must be reported according to regulatory requirements.

Understanding the significance of this limit is crucial for managing environmental risks associated with heating oil. If TPH levels exceed the reporting limit, it indicates potential contamination that could affect soil and water quality, prompting required action to address and remedy the situation.

This reporting limit is often established based on various factors, including environmental standards and the need to protect human health and the environment. In practice, when conducting assessments or when monitoring the condition of heating oil tanks, ensuring that measurements are compared against this 50 ppm limit helps maintain compliance and safeguard public health.