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Cultural Resources (Continued) <br /> Person/Agency Timing or Frequency <br /> Mitigation Measure Monitoring Requirements Responsible' of Monitoring' <br /> Prior to further land disturbance, recommendations for <br /> further studies should include, but not be limited to, the <br /> following: <br /> • Known sites must be mapped by professional surveyor Submit map. SJCCDD FM <br /> and a qualified archaeologist. <br /> • All existing collections must be analyzed, Submit monthly status report. SJCCDD PC, C, PO <br /> photographed,correlated and if possible, collected in <br /> one place. <br /> Submit monthly status report. <br /> • Known sites must be tested to determine the extent and SJCCDD PC, C <br /> type of contents, plus depth, integrity,age, and <br /> intrasite patterning(e.g.,in depth,horizontal extent <br /> and artifact density), as follows: <br /> - For the two newly recorded habitation sites <br /> t i u ro i_ <br /> land 114:491 i).,(CA-SJO-0237,- <br /> 0238,-0240),at least eight one-by two-meter <br /> test units in each should be excavated to the <br /> sterile level (approximately two meters); at <br /> least 20 obsidian hydration samples and at least <br /> five carbon-14 samples should be dated for each <br /> test unit. <br /> - For the lake site ("� ,(CA-SJO-0011), <br /> at least 20 one-by two-meter test units should <br /> be excavated until a sterile level is reached <br /> (approximately three meters); at least 30 <br /> obsidian samples and at least 10 carbon-14 <br /> samples should be dated for each test unit. <br />