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TABLE 21-4 <br /> POTENTIALLY APPLICABLE OR RELEVANT AND APPROPRIATE CALIFORNIA REQUIREMENTS FOR DDRW-TRACY <br /> (Page a of 8) <br /> Standard,Requirement,Criterion,cc —_ — Applicable and/or <br /> Limitation Citation Description Relevant and Appropriate Comments <br /> Rocornmended Public Health Levels for H R S Code Seetiohu 4018,4019, Reeornmended Public Health Levels(RPHLs)have To be considered These standards have been proposed for OU 81 TCE and <br /> Contaminants in Drinking Water 4023,4023.1,4023.2 been prepared for community water systems serving PCE groundwater cleanup at DDRW-Tracy. <br /> more than 10,000 smite connections. The <br /> proposed RPHL for TCE is 2.5 pgA;the proposed CA Regulatory Agency DHS, DTSC • <br /> RPHL for PCE is 0.7 pgA. Written comment period <br /> on the proposed rule closed on 19 February 1992. <br /> State Action Levels 'MC Criteria Criteria setting chemical specific concentration To be considered DISC Action Levels arc used as water quality criteria. <br /> levels. Numerical limits designed to protect human Action levels are rat enforceable standards and, <br /> health bort)chemical constituents in drinking water, semfoe,are not ARARs. However,action levels can <br /> Recanmended acceptable limits, be a to be considered(TEC)to offer protection of <br /> human health,if needed. Dieldrin has no MCLS and no <br /> Action levels are drinking water exposure criteria MCLGs. However,dieldrin does have an Action Level, <br /> that are applicable throughout the state. They aro 0.05 ppb,that has been proposed as the cleanup standard <br /> developed by DHS' Sanitary Fngincaing Branch to at OU al. <br /> supplement the federal standards promulgated under <br /> the Safe Drinking Water Act,and often rely on EPA CA Regulatory Agency DISC <br /> health advisories as the basis for setting an action <br /> level. <br /> • <br /> Q�.1(MNCJl HIOowNVY <br />