Charles County Flow Monitoring Services for the Sanitary Sewer System

The County Commissioners of Charles County, Maryland are requesting proposals for professional services to operate, maintain, and support the County's wastewater flow monitoring network within the Mattawoman Sewer Service Area under RFP 26-040, with proposals due August 6, 2026 at 11:00 a.m. A non-mandatory pre-proposal meeting is scheduled for July 7, 2026 at 10:00 a.m., with registration due July 6.

The contractor will manage a monitoring network consisting of 19 installed Triton+ flow meters, 5 installed Rain Alert III rain gauges, and spare equipment held in reserve. Core deliverables include routine equipment maintenance and inspections, data collection and management, data analysis and reporting to support inflow and infiltration investigations and infrastructure planning, and installation or relocation of monitoring equipment as needed. The County may expand the network and request additional technical support services during the contract term.

The base term runs from contract execution through September 30, 2027, with four optional one-year renewals available at the County's sole discretion. Contract renewals are automatic unless either party provides written notice of non-renewal at least 45 calendar days before the contract anniversary date. Unit prices must remain firm through the base term, with adjustments in subsequent years based on the Consumer Price Index.

Evaluation assigns 40 points to price, 25 points to project experience of similar scope and nature, 20 points to experience with Maryland and local permitting agencies, and 15 points to experience of qualified personnel. Offerors must submit a technical proposal addressing project understanding, methodology, data management and QA/QC procedures, organizational structure, staffing qualifications, regulatory compliance, and safety compliance, along with completed Cost Proposal Forms. Proposals must include references demonstrating a minimum of three completed representative projects of similar magnitude within the past five years, with preference given to municipal clients and projects within Maryland or surrounding regions. Proposals must be submitted electronically via the County's eProcurement Portal.