Jinan Dongfeng single-cab sludge removal truck (blue license plate, 5-cubic-meter capacity) government procurement case: From sudden urban flooding to rapid delivery. In summer 2024, a district in Jinan experienced consecutive heavy rainfall, causing severe urban flooding in low-lying areas; blocked drainage pipelines led to street water accumulation exceeding 30 cm in multiple locations. The local municipal sanitation department urgently initiated an emergency procurement process, requiring a batch of blue-license-plate, 5-cubic-meter sludge removal trucks for rapid pipeline unclogging and sludge clearance. However, conventional procurement procedures were too time-consuming, while ad-hoc tendering faced challenges such as mismatched vehicle specifications and tight delivery deadlines. Ultimately, through an expedited tendering process, Chengli Special Purpose Vehicle Co., Ltd. completed vehicle delivery within 15 days—effectively alleviating urban flood pressure. This article uses this case as a reference to explain the 'emergency supplementary procurement' model in government purchasing and analyze the core advantages of Chengli sludge removal trucks. I. Background of Sudden Demand: Dual Pressure from Flooding and Pipeline Blockage The district lies in a low-lying urban area with aging underground drainage infrastructure; localized water accumulation frequently occurs during heavy rain. In July 2024, an extreme rainstorm caused water depths exceeding 40 cm across multiple roads in the district, with basement flooding reported in several residential communities. Municipal sanitation inspections identified accumulated sludge and debris in the pipelines as the primary cause of drainage obstruction, preventing timely rainwater discharge. According to publicly released tender information, the department’s existing sludge removal vehicles were severely aged and required frequent maintenance—rendering them inadequate for emergency response. Consequently, there was an urgent need to procure lightweight, maneuverable, blue-license-plate-compliant (C1 driver’s license eligible) 5-cubic-meter sludge removal trucks suitable for pipeline cleaning operations in narrow streets and residential neighborhoods. Key technical requirements included: Dongfeng single-cab chassis (for enhanced maneuverability and U-turn capability on narrow roads), rated payload capacity of approximately 5 tons (i.e., 5-cubic-meter tank volume), China VI emission standard compliance, integrated high-pressure cleaning system, vacuum pump, sludge storage tank, and combined 'cleaning + suction' operational capability. The budget was capped at approximately RMB 390,000 per unit (based on local procurement benchmarks), with mandatory delivery within 15 days to ensure readiness before the next rainy season. II. Expedited Tendering Process: Streamlined Procedures and Rapid Response Facing urgent flood conditions, Jinan’s municipal sanitation department activated its emergency procurement mechanism, adopting an 'inquiry-based pricing + competitive negotiation' approach to bypass the lengthy formal public tendering process. Specific steps were as follows: • Demand Confirmation: On July 10, an internal emergency meeting was held to confirm the requirement for five blue-license-plate, 5-cubic-meter sludge removal trucks (model reference: Dongfeng chassis + Chengli bodywork). • Inquiry Issuance: On July 12, an inquiry notice was published via the government procurement platform, requesting suppliers to submit vehicle specifications, quotations, delivery timelines, and after-sales service commitments—with responses due by July 15. • Evaluation & Negotiation: On July 16, the evaluation panel assessed quotations from three qualified suppliers, focusing on vehicle announcement compliance (ensuring legal registration eligibility), delivery capability, and after-sales support. Chengli Special Purpose Vehicle stood out due to its production advantage in Suizhou (standard models de