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aMedian of 2.65 persons per household. fcMore than one per 100 ml. c 2 to 14 connections. d 15 or more connections.

Source: J. D. Francis et al., National Assessment of Rural Water Conditions, EPA 570/9-84-004, U.S. Environmental Protection Agency, Office of Drinking Water, Washington, DC, June 1984.

aMedian of 2.65 persons per household. fcMore than one per 100 ml. c 2 to 14 connections. d 15 or more connections.

Source: J. D. Francis et al., National Assessment of Rural Water Conditions, EPA 570/9-84-004, U.S. Environmental Protection Agency, Office of Drinking Water, Washington, DC, June 1984.

FIGURE 2.19 Components of total operating head in well pump installations. (Source: Manual of Individual Water Systems, EPA-570/9-82-004, U.S. EPA, Office of Drinking Water, Washington, DC, October 1982, p. 102.)

Consolidated systems had a median of 153 connections. The median for average daily use was 43,000 gpd.

Nationally, 28.9 percent of all rural household water supplies had coliform concentrations exceeding the standard of 1/100 ml. Individual and intermediate systems were more often contaminated than community systems. Dug, driven, and jetted wells and springs were more likely to be contaminated. However, even the rural community systems showed significantly higher levels of coliform contamination than the larger public water systems. This points out sharply an unresolved problem and the need for greater attention to rural water supplies, including the 34,000 rural community systems. The need for improved well and spring location, construction, and protection and competent intermediate and community system operation is apparent.

Design of a Household Water System

Major considerations in the design of a well-water system for a private dwelling are a dependable well yield and a well pump of adequate capacity and operating head. Chapter 1, Figure 1.4 shows a well log and well yield testing. Figure 2.10 shows the probable range of the maximum momentary water demand for one or more dwelling units. See also Figure 2.11 for fixture unit basis for demand load in gallons per minute and Figure 2.14 for pressure tank and pump size. Figure 2.19 shows the components that make up the total well pump operating head. Table 2.11 gives recommended pump capacities and supplements text suggestions.

Renewable Energy Eco Friendly

Renewable Energy Eco Friendly

Renewable energy is energy that is generated from sunlight, rain, tides, geothermal heat and wind. These sources are naturally and constantly replenished, which is why they are deemed as renewable.

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