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Feasibility of Rainwater Collection Systems in California.

PB288378

Publication Date	1978
Personal Author	Jenkins, D.; Pearson, F.; Moore, E.; Kim, S. J.; Valentine, R.
Page Count	65
Abstract	The northern California drought of 1975-77 emphasized the need to explore alternatives for water supply. This research examined the feasibility of collecting rainwater for domestic consumption from roof areas into storage tanks. Rainfall records for 13 representative California locations were analyzed to provide a basis for estimating the supply of water from rainwater collection systems. Standard statistical measures of central tendency, distribution and variation, as well as serial correlation, were remarkably consistent. The concentration of lead in rainwater near urban areas frequently exceeds the recommended limit for drinking water, which would imply that rainwater supply systems are feasible only in rural areas. Microbiological contamination of rainwater results from bird droppings on the collection area, but chlorine disinfection proved effective. Turbidity can be removed to below the limit recommended for drinking water by a process of alum coagulation and settlement, feasible on a household scale.
Keywords	Water supply Rain Accumulators California Potable water Feasibility Water resources Water quality Water treatment Design Contaminants Lead(Metal) Microorganisms Turbidity
Source Agency	Office of Water Research and Technology
NTIS Subject Category	48B - Natural Resource Management 50B - Civil Engineering
Corporate Authors	California Univ., Davis. Water Resources Center.; California Univ., Berkeley. Sanitary Engineering Research Lab.; Office of Water Research and Technology, Washington, DC.
Supplemental Notes	Prepared by California Univ., Berkeley. Sanitary Engineering Research Lab. Also pub. as ISSN-0575-4941.
Document Type	Technical Report
Title Note	Technical completion rept.
NTIS Issue Number	197906

Feasibility of Rainwater Collection Systems in California.

Feasibility of Rainwater Collection Systems in California.
PB288378

Publication Date	1978
Personal Author	Jenkins, D.; Pearson, F.; Moore, E.; Kim, S. J.; Valentine, R.
Page Count	65
Abstract	The northern California drought of 1975-77 emphasized the need to explore alternatives for water supply. This research examined the feasibility of collecting rainwater for domestic consumption from roof areas into storage tanks. Rainfall records for 13 representative California locations were analyzed to provide a basis for estimating the supply of water from rainwater collection systems. Standard statistical measures of central tendency, distribution and variation, as well as serial correlation, were remarkably consistent. The concentration of lead in rainwater near urban areas frequently exceeds the recommended limit for drinking water, which would imply that rainwater supply systems are feasible only in rural areas. Microbiological contamination of rainwater results from bird droppings on the collection area, but chlorine disinfection proved effective. Turbidity can be removed to below the limit recommended for drinking water by a process of alum coagulation and settlement, feasible on a household scale.
Keywords	Water supply Rain Accumulators California Potable water Feasibility Water resources Water quality Water treatment Design Contaminants Lead(Metal) Microorganisms Turbidity
Source Agency	Office of Water Research and Technology
NTIS Subject Category	48B - Natural Resource Management 50B - Civil Engineering
Corporate Authors	California Univ., Davis. Water Resources Center.; California Univ., Berkeley. Sanitary Engineering Research Lab.; Office of Water Research and Technology, Washington, DC.
Supplemental Notes	Prepared by California Univ., Berkeley. Sanitary Engineering Research Lab. Also pub. as ISSN-0575-4941.
Document Type	Technical Report
Title Note	Technical completion rept.
NTIS Issue Number	197906