迅速增长的人口，新淡水资源的稀缺，以及 大量使用再生水来增加饮用水供应的提案已经使 加利福尼亚州面临越来越大的压力，需要制定全面的 通过地下水补给间接饮用水再利用。而加州教育部 卫生服务部（DHS）开始为这两个项目制定标准 几年前，国土安全部加强了在这方面的努力 去年。2001年发布的最新标准草案包括要求 这反映了当前对氮化合物的担忧，不受监管的新兴市场 化学污染物，如内分泌干扰物和药物，以及 有机碳（TOC）限值。消毒过滤再生水是最低限度的 允许进行表面摊铺工程，但可能需要进行额外处理 如果土壤含水层处理无效，则需要。通过逆转进行额外治疗 所有注入项目都需要渗透，以确保有机物去除。国土安全部现在 考虑允许50%至100%的再生水通过 控制措施可能包括测试暂时确定的化合物，高级 使用紫外线辐射和过氧化氢进行氧化，体内毒性试验， 并将TOC限值降至0.5 mg/L。标准将继续发展到 解决出现的新问题或担忧。包括表格，数字。

Burgeoning population growth, scarcity of new freshwater sources, and an influx of proposals to use reclaimed water to augment potable supplies have put increasing pressure on the State of California to develop comprehensive criteria for indirect potable reuse via groundwater recharge. While the California Department of Health Services (DHS) began the process of developing criteria for both surface spreading and injection projects several years ago, DHS has intensified its efforts in the last year. The most recent draft criteria, released in 2001, include requirements that reflect current concerns over nitrogen compounds, unregulated emerging chemical contaminants such as endocrine disruptors and pharmaceuticals, and total organic carbon (TOC) limits. Disinfected filtered reclaimed water is the minimum allowed for surface spreading projects, although additional treatment may be necessary if soil aquifer treatment is ineffective. Additional treatment via reverse osmosis is required for all injection projects to insure organics removal. DHS is now considering requirements to allow recharge of 50 to 100 percent reclaimed water with controls that may include testing for tentatively identified compounds, advanced oxidation using ultraviolet radiation and hydrogen peroxide, in vivo toxicity testing, and lowering the TOC limit to 0.5 mg/L. The criteria will continue to evolve to address new issues or concerns as they arise. Includes table, figures.