Laundry to Landscape Greywater Quality in Santa Clara County, California

With the increase in potable water scarcity, many agencies in different parts of the world have invested in water conservation programs, such as laundry-to-landscape (L2L) greywater systems, which reuse washing machine greywater for irrigation. This Data was gathered as part of a field study for my thesis research. Twenty-one greywater characteristics of thirty households with Laundry to landscape greywater systems in Santa Clara County, California, were analyzed. pH, electrical conductivity (Ec), sodium adsorption ratio (SAR), nitrogen, sodium (Na), calcium (Ca), Fecal Coliform (FC), magnesium (Mg), potassium (K), calcium (Ca), sodium (Na), chlorine (Cl), total dissolved solids (TDS), NO3 (as nitrate), phosphorus, carbonate CO3 as (CaCO3), bicarbonate HCO3 as (HCO3), total organic carbon (TOC), biochemical oxygen demand (BOD), iron (Fe), manganese (Mn), boron (B) and Sulfate (SO4) were analyzed in the lab.
Also, the plants irrigated with greywater, whether households were following California plumbing code, and system age were recorded as well.

随着饮用水短缺问题日益凸显，全球多地的相关机构已纷纷投入水资源保护项目，例如洗衣回用景观灌溉（Laundry-to-Landscape, L2L）灰水系统——该系统可将洗衣机产生的灰水回收用于园林绿化灌溉。本数据集采集自本人学位论文研究中的实地调研工作。本次研究针对美国加利福尼亚州圣克拉拉县的30户安装了洗衣回用景观灌溉灰水系统的家庭，对其灰水的21项特征展开分析。实验室完成检测的指标包括：pH值、电导率（Electrical Conductivity, Ec）、钠吸附比（Sodium Adsorption Ratio, SAR）、氮、钠（Sodium, Na）、钙（Calcium, Ca）、粪大肠菌群（Fecal Coliform, FC）、镁（Magnesium, Mg）、钾（Potassium, K）、钙（Calcium, Ca）、钠（Sodium, Na）、氯（Chlorine, Cl）、总溶解固体（Total Dissolved Solids, TDS）、以硝酸盐计的NO3、磷、以碳酸钙计的碳酸盐CO₃（即CaCO3）、以重碳酸盐计的HCO₃（即HCO3）、总有机碳（Total Organic Carbon, TOC）、生化需氧量（Biochemical Oxygen Demand, BOD）、铁（Iron, Fe）、锰（Manganese, Mn）、硼（Boron, B）以及硫酸盐（Sulfate, SO4）。此外，调研同时记录了受灰水灌溉的植物相关信息、受访家庭是否符合加州管道规范（California Plumbing Code）以及系统服役时长等内容。