Management Plans & Watershed Studies

Petaluma Biological Resources Review for City of Petaluma, Petaluma, California.
The City of Petaluma floods annually due to a combination of tidal influence from the San Francisco Bay and rainfall. ES&A performed a biological resources review for all significant waterways. Work involved both document and field reviews. ES&A documented sensitive, threatened and endangered species, and sensitive resources (i.e., wetlands) associated with the waterways. ES&A prepared a technical report summarizing findings, which will assist the project engineer in developing an approach to managing the City of Petaluma’s water resources. The document will also be used as a tool in public involvement, providing graphical information regarding Petaluma’s waterways and associated natural resources.

Tri-City Water Pollution Control Plant Conditional Use Master Plan for Clackamas County Water Environment Services, Oregon City, Oregon.
Water Environment Services is required to obtain a Conditional Use Permit from the City of Oregon City for each proposed expansion activity at it’s Tri-Cities Water Pollution Control Plant. In order to expedite future expansion plans, ES&A is preparing a Conditional Use Master Plan for the treatment facility and associated public amenities. Future plans include not only expanding the plant in order to accommodate future population growth, but a natural stormwater treatment system, effluent reuse demonstration, "Green Street" Boulevard, biofilters for "Green Solutions", floodplain forest enhancement, interpretative trail system and public recreation areas.

Water Management Plan for Marion County, Oregon.
Conducted a countywide water quality assessment and water resource inventory to support development of a water management plan. The economy of Marion County, based largely on agriculture, produces more agricultural commodities than any other county in Oregon. Critical issues driving the management plan effort included the severely degraded quality of much of the county’s surface and groundwater resources and consequent limitations to further economic development. Project work involved a thorough review of all available DEQ and USGS water quality data and an assessment of existing land use practices and associated water quality impacts.

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