Sample Typical Contaminant Date (if Violation Source of prior to Contaminant 2015) GROSS Erosion of ALPHA, 1.7 - 15 0 2.7 natural EXCL. R & 2.7 deposits U (pCi/l) RADIUM, Erosion of 0.2 - (226 + 228) 5 0 0.2 natural 0.2 (pCi/l) deposits GROSS Erosion of ALPHA, 1.7 - n/a n/a 2.7 natural INCL. R & U 2.7 deposits (n/a) COMBINED Erosion of URANIUM 30 0 0.5 0.5 natural (ug/l) deposits Unregulated Contaminants Unregulated contaminants are those for which EPA has not established drinking water standards. The purpose of unregulated contaminant monitoring is to assist EPA in determining the occurrence of unregulated contaminants in drinking water and whether future regulation is warranted. EPA required us to participate in this monitoring. Sample Date Contaminant Level (if (units) to 2015) 0.00 - 14.00 14.00 (ppb) Health effects for any contaminants with MCL violations/Action Level Exceedances Effects Infants and LEAD children who water
Contaminant Sample Date (if prior to 2015) Violation Typical Source of Contaminant GROSS ALPHA, EXCL. R & U (pCi/l) 15 0 2.7 1.7 - 2.7 Erosion of natural deposits RADIUM, (226 + 228) (pCi/l) 5 0 0.2 0.2 - 0.2 Erosion of natural deposits GROSS ALPHA, INCL. R & U (n/a) n/a n/a 2.7 1.7 - 2.7 Erosion of natural deposits COMBINED URANIUM (ug/l) 30 0 0.5 0.5 Erosion of natural deposits Unregulated Contaminants Unregulated contaminants are those for which EPA has not established drinking water standards. The purpose of unregulated contaminant monitoring is to assist EPA in determining the occurrence of unregulated contaminants in drinking water and whether future regulation is warranted. EPA required us to participate in this monitoring. Contaminant (units) Level Sample Date (if to 2015) (ppb) 14.00 0.00 - 14.00 Health effects for any contaminants with MCL violations/Action Level Exceedances Effects LEAD Infants and children who water