SandRemovalReplacementChanging.pdf

This is a technical operations manual excerpt from Parkson Corporation regarding sand removal and replacement procedures for DynaSand Filters, directly relevant to the City of Plant City, Florida's Request for Proposals (RFP No. 26-008UO-HK-RFP) for sand and sludge management services at the Water Reclamation Facility. The document provides detailed operational guidance for contractors who will manage sand filtration maintenance, including methods for removing sand using airlift pumps, techniques for preventing sand burial using PVC pipe assemblies, strategies for temporary sand storage in bags or drums, and procedures for transferring sand between multiple filters. The guidance emphasizes that sand removal should utilize low-pressure airlift pumping systems rather than diaphragm slurry pumps or concrete pumps, and explicitly cautions against substituting non-approved sand types, directing users to reference Section 3.2.G.9 for approved sand specifications. The City's procurement solicitation requires proposals by March 26, 2026 at 2:00 p.m., with questions due by March 16, 2026 at 5:00 p.m., and establishes a three-year initial contract term with two optional one-year renewal periods at the City Manager's discretion.

Pricing shall be submitted on a unit cost basis for all line items with mobilization and demobilization fixed at $50,000, while renewal periods permit fee adjustments up to four percent annually with ninety days' notice supported by Consumer Price Index documentation. The contract is non-exclusive with no minimum work guarantee, and the City reserves termination rights with thirty days' notice or the ability to delete contract portions at will. Contractors must maintain Workers' Compensation insurance, Commercial General Liability and Property Damage Insurance of at least $500,000 per person and $1,000,000 per occurrence, and Commercial Automobile Liability Insurance of $500,000, naming the City as additional insured. Evaluation criteria weight contractor qualifications at thirty percent, project team qualifications at thirty percent, work narrative and safety plan at twenty percent, and cost at twenty percent, with contractors permitted to subcontract up to fifty percent of work with a maximum ten percent administration markup. No specific contract budget or minimum funding amount is disclosed; costs are based on actual work performed as verified through certified weight tickets, flow meter readings, and approved testing procedures in compliance with OSHA, federal, state, and local regulations.