Philip Trowbridge's picture

Philip Trowbridge, P.E.

RMP Program Manager
Clean Water Program
Bay Regional Monitoring Program

Phil Trowbridge is the Program Manager for the Regional Monitoring Program for Water Quality in San Francisco Bay. The Bay RMP ( is a novel, multi-faceted regional monitoring program that uses pooled resources from dischargers and dredgers of San Francisco Bay to conduct and coordinate studies aimed at evaluating ecosystem health, characterizing sources and fate of contaminants, and informing potential management actions. Phil is responsible for managing RMP staff, budgets, and deliverables; facilitating discussion of technical issues; designing studies; and presenting results to stakeholders and technical collaborators.

Phil received his Bachelor of Science in Geology from the University of Washington and his Masters Degree in Civil and Environmental Engineering from the Massachusetts Institute of Technology. He is a licensed Professional Engineer.

Related Projects, News, and Events

Contaminant Data Download and Display (CD3) (Project)

Contaminant Data Display and Download Tool or CD3  is an innovative visualization tool for accessing water quality data for the San Francisco Bay-Delta and northern montane regions. It is the primary tool for accessing and downloading the San Francisco Bay Regional Monitoring Program’s (RMP) long-term dataset and other project data stored in SFEI's Regional Data Center (RDC).

RMP Annual Meeting 2016 (Event)

The RMP Annual Meeting is held every year in the early fall. The meeting is an opportunity for RMP stakeholders to discuss current RMP projects and highlight interesting new research. 

RMP Keys to Success Highlighted in Two Manuscripts (News)

RMP Keys to Success Highlighted in Two Manuscripts

RMP Update (Project)

The Regional Monitoring Program for Water Quality in San Francisco Bay is an innovative collaboration of the San Francisco Bay Regional Water Quality Control Board, the regulated discharger community, and the San Francisco Estuary Institute. It provides water quality regulators with information they need to manage the Bay effectively. The Program issues a report each year, the Pulse of the Bay in odd years and the RMP Update in even years.

Dredged Material Testing Thresholds for San Francisco Bay Area Sediments (Project)

This page presents sediment chemistry thresholds for seven different contaminant classes, used by the Dredged Material Management Office (DMMO) for determining when bioaccumulation testing will typically be required for dredged material proposed to be discharged at unconfined open water disposal sites in San Francisco Bay. These same thresholds are also used by DMMO to determine when additional analysis of the post-dredge sediment surface (“residual” or “z-layer” sediments) may be warranted.

RMP Annual Meeting Summarized on Twitter (Event)

The RMP Annual Meeting was held in conjunction this year with the State of the Estuary Conference. Collectively, the events brought together over 800 people interested in the condition of our estuary.

Below is featured a collection of highlights of the conference as recorded in social media in the form of videos, images, quotations, and other observations. We hope you enjoy perusing this unique conversation of over 89 users, 500 tweets, and a world-wide audience of over 400,000 people.

The SF Chronicle features the release of the Pulse of the Bay (News)

On September 9, the San Francisco Chronicle highlighted some of the environmental strides and challenges revealed in the latest Pulse of the Bay, a comprehensive water quality summary that ranks San Francisco Bay’s water quality as “fair to good.”

State of the Estuary Conference on Twitter (Event)

In an event convened by the San Francisco Estuary Partnership, SFEI contributed its own intellectual labor to the State of the Estuary Conference. Letitia Grenier served as the lead scientist for the State of the Estuary Report, unveiled at the gathering, and SFEI's scientists and technologists were featured prominently in the program on subjects ranging from nutrients to landscape resilience to green infrastructure to data and tools. By all measures, it was a successful conference.

The Regional Monitoring Program for Water Quality in San Francisco Bay: Science in Support of Dredging Activities (News)

The overarching goal of the RMP is to collect data and communicate information about water quality in San Francisco Bay in support of management decisions. Dredging activities are affected by management decisions about disposal of contaminated sediments, dredged sediment volumes, and the impacts of dredging on aquatic life. The RMP teamed with the Bay Planning Coalition on a fact sheet describing how the RMP has studied these issues to ensure that management decisions are based on sound science.

Bay RMP Water Monitoring Cruise: August-September 2015 (Event)

On August 26, 2015, the RMP will begin its 23rd year of water quality sampling in the San Francisco Bay. Samples will be collected from across the whole Bay: from Lower South Bay to the Delta to just outside the Golden Gate Bridge. This year the RMP is partnering with the U.S. Geological Survey to collect the samples from their research vessel RV Turning Tide.