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M&A
| Place | Result |
| Duckabush | 90 ca2+ |
| Triton Cove | 78 ca2+ |
| Chimacum Creek | 62 ca2+ |
| Dosewallips | 42 ca2+ |
Ca2+ is calcium.
Soft water- Below 50
Moderately hard- 50
Hard water- Over 50
M&A