Enter the numbers from your lab report. Runs in your browser; nothing is sent. Compares results to EPA public-water standards. Independent tool, not affiliated with the EPA.

Safety

Total coliform bacteria Not tested Absent / negative Present / positive E. coli Not tested Absent / negative Present / positive Nitrate (as N) (NO3-N)Limit: 10 mg/L mg/L (ppm) µg/L (ppb) Nitrite (as N)Limit: 1 mg/L mg/L (ppm) µg/L (ppb)

Health metals

ArsenicLimit: 0.010 mg/L (10 µg/L) mg/L (ppm) µg/L (ppb) LeadLimit: 0.015 mg/L (15 µg/L) action level mg/L (ppm) µg/L (ppb) CopperLimit: 1.3 mg/L action level mg/L (ppm) µg/L (ppb) UraniumLimit: 0.030 mg/L (30 µg/L) mg/L (ppm) µg/L (ppb) FluorideLimit: 4.0 mg/L (secondary 2.0) mg/L (ppm) µg/L (ppb)

Everyday water quality

IronLimit: 0.3 mg/L mg/L (ppm) µg/L (ppb) ManganeseLimit: 0.05 mg/L (health advisory 0.3) mg/L (ppm) µg/L (ppb) Hardness (as CaCO₃)Limit: Treatment usually optional below 120 mg/L (7 gpg) mg/Lgpg pHLimit: 6.5 – 8.5 pH Total dissolved solids (TDS)Limit: 500 mg/L mg/L (ppm) µg/L (ppb) SulfateLimit: 250 mg/L mg/L (ppm) µg/L (ppb) ChlorideLimit: 250 mg/L mg/L (ppm) µg/L (ppb) ZincLimit: 5 mg/L mg/L (ppm) µg/L (ppb) SodiumLimit: 20 mg/L (low-sodium diets only) mg/L (ppm) µg/L (ppb)

What you notice (optional)

Rotten egg / sulfur smell Tea-colored water that doesn't settle Sand or grit

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