Sample_Invoice_Fire_flow.xlsx

This document is a sample invoice and estimate form from the Washington Suburban Sanitary Commission (WSSC) in Maryland for Fire Flow Testing Services. The estimate template outlines six line items for contracted work, including fire flow tests (1 estimated quantity at $1,500 per unit), hydrant inspections (3,000 units), valve inspections (3,000 units), and traffic setup and maintenance services for county roads, state/arterial roads, and residential roads (5 eight-hour days each). The form includes fields for contractor information, activity periods, business address, contract upset limit, and cost calculations. The related contract opportunity indicates that sealed responses were due by 2:00 PM on November 30, 2026, via WSSC's eProcurement Portal. The Fire Flow Testing Program aims to evaluate hydraulic performance of the water distribution system by measuring static pressure, residual pressure, and flow rates at designated locations to assess flow-producing capacity, support engineering analyses, and inform future infrastructure improvements.

The contractor is responsible for planning, coordinating, and performing all fire flow testing activities, including field data collection, validation, documentation, and report submission in accordance with WSSC Water standards and industry best practices. The invoice form includes certification requirements whereby the authorized contractor representative must certify that payments have been made to subcontractors and suppliers in accordance with contractual arrangements. Specific pricing for individual line items and total contract value are not provided in the sample estimate template, though fields exist for rate calculations and total amounts payable. The contract emphasizes maintaining water distribution system integrity, minimizing customer and traffic disruption, and ensuring compliance with all applicable safety requirements and WSSC Water standards.