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6.0. -Page 85 of 179 <br />data provided by HUD based on the 2000 Census to obtain the number of low- and very low-income <br />housing units of a particular construction period and multiplied units times the likelihood of these units <br />containing lead based paint. The likelihood of lead-based paint by the age of a structure is based on a <br />national survey conducted by the National Center for Healthy Housing. <br />Not all units with lead-based paint have lead-based paint hazards. Lead-based paint is only a hazard <br />when there is a potential of lead -contaminated soil, lead contaminated dust, or accessible peeling paint <br />due to deterioration and improper maintenance of a structure. Based upon previous surveys, the table <br />below estimates the number of housing units that may contain lead-based paint hazards in census tracts <br />and blocks identified as having concentrations of low-income and very low-income households. <br />HUD provides a standard method to estimate the community -wide risk of lead poisoning resulting from <br />lead-based paint. The method assumes that a certain percentage of homes built before the sale of lead- <br />based paint was banned in 1979 constitute a lead poisoning hazard. The older the age of the home, the <br />more likely it is to constitute a lead poisoning hazard. The method also assumes that low-income <br />households are more likely to be at risk of lead poisoning. Applying the percentage of low-income <br />households by tenure to the age of homes by tenure and multiplying by the presumed lead hazard <br />percentage results in the estimated number of households at risk of lead poisoning. The estimates for <br />Redwood City are shown the attached table (JPEG). <br />Discussion <br />Consolidated Plan REDWOOD CITY 79 <br />OMB Control No: 2506-0117 (exp. 06/30/2018) <br />441 <br />