68e07683_SAHRA___Home_Water_Testing__Likely_source
[Lab result] Acidity low (pH levels under 6.0 ) [Potential health effects] Minimal or no effects [Treatment options] Acid neutralizing filters (POE) or addition of alkaline chemicals such as lime [Likely source] 
Natural, acid mine seepage; often together with copper, zinc, and/or lead
SAHRA - Home Water Testing
Likely source