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Public Works


Initial Study/Mitigated Negative Declaration
Project No. 0802-0631

PDF Document Download Entire Study [pdf:3mb/233pp]

Water Treatment Plant - East Pipeline ProjectLead Agency:
City of El Paso de Robles

Environmental Consultant:
Padre Associates, Inc.
811 El Capitan Way,
Suite 130
San Luis Obispo, CA

Project Contact:
Mr. Doug Monn, Public Works Director
City of El Paso de Robles
1000 Spring Street
Paso Robles, CA
(805) 237-3861


This Initial Study/Mitigated Negative Declaration (IS/MND) has been prepared to identify and assess the anticipated environmental impacts for the Paso Robles Water Treatment Plant (WTP) and Main East Pipeline Project (Project).

The City of Paso Robles (City) is a Project Participant in the Nacimiento Water Project (NWP) currently being implemented by the San Luis Obispo County Flood Control and Water Conservation District (District). The NWP is a regional water supply system that will convey raw water from Lake Nacimiento to communities in San Luis Obispo County, including the City.

The City will construct a Water Treatment Plant (WTP) Project to treat surface water received from Lake Nacimiento. The WTP will provide additional treated water supplies to the City’s distribution system west and east zones to increase supply reliability (especially in the summer months), provide a higher quality supply to existing customers, and to address increasing water demands within the City’s service area. The WTP Project is designed as a 4 million gallon per day (mgd) facility for initial operation in Year 2013, expandable to 6 mgd to meet ultimate future demand.

The main Proposed Project facilities include a Water Treatment Plant, Treated Water Reservoir and Pump Station, Transmission Pipeline, and Appurtenances & Other Site Improvements.

This document has been prepared to satisfy the requirements of the California Environmental Quality Act (CEQA) (Public Resources Code Section 21000 et seq.) and the State CEQA Guidelines (14 California Code of Regulations [CCR] 15000 et seq.). CEQA requires that all state and local government agencies consider the environmental consequences of projects for which they have discretionary authority before they approve or implement such projects.

The Initial Study (IS) is a public document used by the decision-making lead agency to determine whether a project may have a significant effect on the environment. In the case of the Project, the City is the Lead Agency and will use the IS to determine whether the project has a significant effect on the environment. If the lead agency finds substantial evidence that any aspect of the project, either alone or in combination with other projects, may have a significant effect on the environment, that agency is required to prepare an Environmental Impact Report (EIR), a supplement to a previously prepared EIR, or a subsequent EIR to analyze the project. If the lead agency finds no substantial evidence that the project or any of its aspects may cause a significant impact on the environment, a Negative Declaration shall be prepared. If, over the course of the analysis, the project is found to have a significant impact on the environment that, with specific mitigation measures, can be reduced to a less than significant level, a Mitigated Negative Declaration (MND) shall be prepared.





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