Certified Erosion, Sediment, & StormWater Inspectors (CESSWI) Practice Test 2026 - Free CESSWI Practice Questions and Study Guide

The first step in hydraulic planting of seed involves applying the seed without mulch. This initial step is crucial because it ensures that the seed has direct contact with the soil, which is necessary for germination. In hydraulic planting, a mixture of water, seed, and often a fertilizer is sprayed over the soil. By placing the seed directly onto the surface first, it allows for proper placement in the moist environment created by the hydraulic action, which supports quick germination and establishment of the plant as it begins to root into the soil.

Following this step, additional measures like adding mulch or watering can significantly enhance the success of the planting process by protecting the seed from erosion or desiccation and providing a favorable microenvironment for growth. However, the foundational step is always ensuring that the seeds are correctly placed first.