| http://www.w3.org/ns/prov#value | - (i) EPA or other appropriate entity shall conduct a survey of the number and size (or length) of unpaved roads, unpaved parking lots, and vacant lots subject to the provisions of this section located within the Phoenix PM-10 nonattainment area beginning no later than 365 days from September 2, 1998.(ii) EPA or other appropriate entity shall conduct a survey at least every three years within the P
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