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April 29, 2021 Lab ID :STK2134563-001 <br /> San Joaquin Co. Environmental Health Dep Description : Wellhead <br /> Drinking Water Interpretation <br /> MCL: The maximum level at which a constituent may be present and be considered <br /> acceptable for potability or aesthetics. <br /> Primary: Items listed as primary are regulated because of health concerns. If there is a <br /> failure for a primary constituent treatment is normally required. <br /> Secondary: Items listed as secondary are regulated because they may adversely affect the <br /> taste, odor or appearance of drinking water. They are not directly health related. <br /> If there is a failure for a secondary constituent on a small public water system it is <br /> best to consult your regulator to determine if treatment is required. A secondary <br /> constituent failure for a private water system does not require treatment. <br /> However, the owner may wish to treat the water in order to improve the quality. <br /> Treatment: If your water requires treatment we suggest that you contact a qualified water <br /> treatment company. They are normally listed in the yellow pages under the <br /> following topics: <br /> Water Purification & Filtration Equipment <br /> Water Softening & Conditioning Equipment <br /> Water Treatment Equipment <br /> Health Effects Language <br /> Manganese Manganese was found at levels that exceed the secondary MCL.The Manganese MCL was set to protect <br /> you against unpleasant aesthetic affects such as color,taste,odor and the staining of plumbing fixtures(e.g., <br /> tubs and sinks),and clothing while washing.Violating this MCL does not pose a risk to public health. <br /> Specific The conductivity of your water was found at levels that exceed the secondary MCL.The secondary MCL's <br /> Conductance were set to protect you against unpleasant aesthetic affects such as color,taste and odor.Violating this MCL <br /> does not pose a risk to public health. <br /> Sulfate Sulfate was found at levels that exceed the secondary MCL.The Sulfate MCL was set to protect you against <br /> unpleasant aesthetic effects such as color,taste or odor.Violating this MCL does not pose a risk to public <br /> health. <br /> Total The TDS or Total Dissolved Solids in your water was found at levels that exceed the secondary MCL.The <br /> Dissolved TDS MCL's was set to protect you against unpleasant aesthetic affects such as color,taste or hardness. <br /> Solids Violating this MCL does not pose a risk to public health. <br /> Page 5 of 9 <br />