Water System Engineer’s Report Program EIR

Horizon Water and Environment (Horizon) assisted the City of Modesto’s Public Works Department (City) to develop a Programmatic Environmental Impact Report (PEIR) for the City’s 2010 Water System Engineer’s Report.  The 2010 Water System Engineer’s Report compares the City’s existing water supplies with projected water demands to determine if a supply shortage will occur in the future.  The City’s water service area includes the City of Modesto, the City’s Sphere of Influence, and the communities of Del Rio, Ceres, Grayson, Waterford, Hickman, and portions of Turlock.  To provide a reliable supply of domestic water throughout the service area, the report proposed a Capital Improvement Program (CIP) of projects including water storage tanks, booster pump stations, groundwater wells, and distribution pipelines.  The City enlisted Horizon, along with project partner ICF International, to perform the environmental analysis under CEQA to evaluate and disclose potential environmental effects of implementing the CIP.  The PEIR was certified by the City in 2010.  Environmental issues that required careful analysis included potential growth outside the City’s existing sphere of influence, urban development of agricultural lands, disturbance to existing utility infrastructure, impacts to biological and cultural resources, and cumulative impacts in the program area.   Through expertly refining the program description and providing a highly detailed alternatives analysis, Horizon helped the City identify the least environmentally impacting approach that satisfied program objectives.