Parameter

EPA Threshold

This experiment (averages unless stated otherwise)

Phase 1

Phase 2

pH (Secondary Standard)

6.5 - 8.5

8.150

8.967⁺

Nitrates (Primary Standard)

<10 mg∙L⁻¹

3.183 mg∙L⁻¹

2.633 mg∙L⁻¹

E. coli/Coliform (Primary Standard)

<5% positive plates

0%^*

0%^*