Wastewater operator continuing education

Classifying Trench Soil: Two Tests, Five Traps

Training certificate — Rhode Island requires no renewal hours

Misclassifying trench soil can lead to unsafe excavations and trench collapses, risking serious injury and plant damage. This hour shows how to identify soil types correctly using two tests, spot common mistakes, and follow OSHA rules to keep trenches safe.

Course summary, as it appears on your certificate

To equip wastewater operators with critical knowledge and practical skills to classify trench soil safely and effectively, recognize common pitfalls, and apply OSHA excavation safety standards to prevent trench collapses and associated hazards at wastewater treatment sites.

Level 1 — what it is and why — the foundations, for operators new to the subject or wanting a refresher

Credit awarded: 1 hour — Safety

The Rhode Island course number is issued by the Agency for this course and is printed on your certificate.

Reviewed by: Robert Risley, Class 1 Wastewater Operator — reviewed October 2026

AquaCert does not mark its own homework: a licensed operator reviews the content and the course cannot be sold while that review is out of date.

One hour of study is one hour of credit. Your certificate reports the hours, which is what Rhode Island records against your renewal.

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What's included

• ✓ Self-paced online coursework you can start, pause, and resume anytime
• ✓ Short questions along the way, and a short final quiz to pass for your certificate (retake it as often as you need)
• ✓ An official certificate of completion (PDF) with a public verification code
• ✓ Progress saved to your My Learning dashboard