Total and Reactive Phosphorus Sediment Test

The Total & Reactive Phosphorus Sediment Test addresses the critical issue of hidden phosphorus buildup in lake sediments, which can fuel future harmful algal blooms. By providing lab-based insights into both total and bioavailable phosphorus levels in your sediment, it identifies nutrient hotspots before they become water quality crises—helping Lake Pulse subscribers prevent bloom recurrence and make targeted remediation decisions.

This sediment test measures two key phosphorus indicators:

• Total Phosphorus (TP): Captures all forms of phosphorus—dissolved and particulate, organic and inorganic. High sediment TP levels signal a long-term nutrient buildup from runoff, stormwater, or wastewater that can impair lake function over time.
• Orthophosphate (Ortho-P): The dissolved, inorganic form of phosphorus that is immediately available to algae. Ortho-P is a leading trigger of algal blooms and comes from fertilizers, wastewater, or sediment release in low-oxygen conditions.

• A complete Total and Reactive Phosphorus Sediment Test kit, shipped directly to you
• All materials required for clean and simple sample collection
• Step-by-step instructions for preparing your sample
• Prepaid, 2-day return shipping to our certified partner lab
• Full chain-of-custody and professional lab handling to ensure accuracy and reliability

• Your detailed results will be available within 10 business days of lab receipt
• Results are uploaded directly to your lake’s Data Library via the Lake Pulse Portal
• Data can be analyzed in the Lake Pulse Analytics Hub, used to generate alerts, or shared with stakeholders
• A downloadable lab report is also provided in your lake’s Data Sources section for easy access and long-term reference

Need help interpreting your results or planning next steps? The Lake Pulse Boathouse is here to support subscribers anytime.