| Arsenic | 0.4 ppb. average of all samples highest sample 0.4 ppb detected in 1 of 1 sample | 0.004 ppb (California OEHHA 2004) | 10 ppb | 100× the health guideline |
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| PFOS | 8.95 ppt. average of all samples highest sample 12.7 ppt detected in 2 of 2 samples | zero (EPA MCLG) | 4 ppt (from 2029) | Not above its guideline, or no guideline |
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| Haloacetic acids (HAA5) | 33.1 ppb. average of all samples highest sample 80 ppb detected in 101 of 101 samples | None published | 60 ppb | Not above its guideline, or no guideline |
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| PFOA | 2.2 ppt. average of all samples highest sample 4.4 ppt detected in 1 of 2 samples | zero (EPA MCLG) | 4 ppt (from 2029) | Not above its guideline, or no guideline |
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| Total trihalomethanes (TTHMs) | 27.2 ppb. average of all samples highest sample 57 ppb detected in 83 of 83 samples | None published | 80 ppb | Not above its guideline, or no guideline |
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| Radium-226 + Radium-228 | 1.3 pCi/L. sum of the radium-226 and radium-228 averages | None published | 5 pCi/L | Not above its guideline, or no guideline |
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| Fluoride | 507 ppb. average of all samples highest sample 507 ppb detected in 2 of 2 samples | None published | 4,000 ppb | Not above its guideline, or no guideline |
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| Nitrate | 57 ppb. average of all samples highest sample 146 ppb detected in 3 of 5 samples | None published | 10,000 ppb | Not above its guideline, or no guideline |
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| Barium | 4.4 ppb. average of all samples highest sample 4.4 ppb detected in 1 of 1 sample | None published | 2,000 ppb | Not above its guideline, or no guideline |
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| Aluminum | 98 ppb. average of all samples highest sample 98 ppb detected in 1 of 1 sample | None published | No federal limit | Not above its guideline, or no guideline |
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| Copper | 5 ppb. average of all samples highest sample 5 ppb detected in 1 of 1 sample Measured where water enters the distribution system, not at the tap. EPA's action level applies to tap samples. |
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