| SO42- | NO3- | Cl- | NH4+ | Ca2+ | Na+ | K+ | Mg2+ | |
| Entryway | ||||||||
|
| 1.00 | |||||||
|
| 0.41 | 1.00 | ||||||
| Cl− | 0.65 | 0.67 | 1.00 | |||||
|
| 0.84 | 0.38 | 0.57 | 1.00 | ||||
| Ca2+ | 0.91 | 0.81 | 0.69 | 0.64 | 1.00 | |||
| Na+ | 0.74 | 0.84 | 0.81 | 0.50 | 0.88 | 1.00 | ||
| K+ | 0.72 | 0.42 | 0.51 | 0.83 | 0.62 | 0.62 | 1.00 | |
| Mg2+ | 0.83 | 0.75 | 0.79 | 0.71 | 0.89 | 0.86 | 0.73 | 1.00 |
| Household | ||||||||
|
| 1.00 | |||||||
|
| 0.69 | 1.00 | ||||||
| Cl− | 0.35 | 0.30 | 1.00 | |||||
|
| 0.70 | 0.71 | 0.37 | 1.00 | ||||
| Ca2+ | 0.72 | 0.61 | 0.39 | 0.39 | 1.00 | |||
| Na+ | 0.34 | 0.46 | 0.45 | 0.35 | 0.38 | 1.00 | ||
| K+ | 0.52 | 0.53 | 0.41 | 0.43 | 0.35 | 0.32 | 1.00 | |
| Mg2+ | 0.63 | 0.55 | 0.39 | 0.41 | 0.49 | 0.46 | 0.50 | 1.00 |