Modesto, California - Planning and Environmental

Planning and Environmental

In the late 1980s Modesto embarked on an update to the city's General Plan pursuant to requirements of the State of California. The result was a comprehensive evaluation of alternative population and land use projections along with associated environmental impact analysis. Some of the environmental factors technically assessed were air quality, water quality, environmental noise, soil contamination and visual impacts.

Much of the soils in Modesto are classified as part of the Hanford series: (HbpA) fine sandy loam, moderately deep over silt. These soils are well-drained, moderately coarse textured soils derived from alluvium from granitic rock. The Hanford soils are important for the production of a wide variety of irrigated orchard, field, and truck crops.

Vicinity watercourses include the Stanislaus River, the Tuolumne River and Dry Creek empties into the Tuolumne River. Area groundwater, which is the principal source of water supply in the city (Stanislaus, 1987), has been historically impaired in a fashion that is spatially variable. Water from the nearby Modesto Resovoir is now used to augment city water. In various parts of the city and its perimeter the following water pollutants have occurred from time to time: nitrates, dibromochloromethane, volatile organics, salinity, total dissolved solids and other pesticides. (Torrey, 1989) Each of these contaminants is not present citywide.

The E.P.A. rates air quality in Modesto, CA as a 23 on a scale to 100 (higher is better), making Modesto an unhealthy place to live for those with breathing difficulties. This is based on ozone alert days and number of pollutants in the air. In May 2010, Forbes Magazine, in association with the American Lung Association, indicated that Modesto was one of the top 25 most polluted cities in the U.S.