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State-Specific RegulationsBeginner 22 min read

Class T Scope: Transient Non-Community Groundwater Systems

What a Class T certificate does and does not authorise, and why every limit on its scope changes what the operator must know.

Class T Scope: Transient Non-Community Groundwater Systems
Read your scope before you study anything else
Class T is the most narrowly drawn operator class in the Colorado programme, and the boundaries are not decoration - each one removes a whole body of subject matter and adds a different one. Under Regulation 100 the class authorises operation of a facility that is:
  • a transient non-community water system;
  • supplied by ground water that is not under the direct influence of surface water;
  • serving fewer than 100 people per day; and
  • using non-gaseous chlorine only for disinfection.
Confirm the operative wording and any conditions with the Colorado Department of Public Health and Environment and the WWFOCB before relying on a summary - including this one.
What each limit means in practice
Transient non-community
A transient non-community system ser

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Class T Scope: Transient Non-Community Groundwater Systems — Operator Study Guide | PathH₂O