The Commission’s trust‑agreement exhibit describes GN020910, “Microbial Source Tracking Identified Locality Repairs (FY25),” with an approximate cost of $300,000 and notes HRSD’s broader Microbial Source Tracking (MST) Program under the Integrated Plan. The MST work identifies chronic human‑sourced bacterial contamination in waterways, followed by targeted locality repairs of laterals, cross‑connections, and failing infrastructure that are not associated with traditional SSO events. HRSD expects to continue funding MST‑driven locality repairs through at least FY 2040 (the financial forecast lists $20 million in microbial source tracking spend through 2040), meaning recurring needs for sampling and lab services, field investigations, private I/I inspection, and small‑scale sewer repair and rehab projects.Vendors in environmental monitoring, lab analytics, and small‑diameter trenchless construction can position as partners to help localities respond rapidly to MST findings and to scale up the repair program.

MST program is positioned as key to addressing chronic bacterial impairments in local waterways beyond rare SSO events.