Rose Hill #2

Nitrate Concentrations

Year Average St Dev 95% 99% Lower Upper Lower Upper2013 4.55 0.420 0.841 1.261 3.709 5.391 3.289 5.8112012 5.28 1.248 2.495 3.743 2.780 7.770 1.532 9.0182011 7.25 1.166 2.331 3.497 4.919 9.581 3.753 10.7472010 9.05 1.510 3.020 4.531 6.028 12.069 4.517 13.5792009 10.92 1.567 3.135 4.702 7.785 14.055 6.218 15.622

95 % Limits 99% Limits

Consumer Confidence ReportMicrobiological ContaminantsTotal Coliform Bacteria

N 1 N/A 0 Presence of coliform bacteria in 5% of monthly samples

2012 Naturally present in the environment

Fecal coliform and E.coli

N ND N/A 0 If a routine sample and repeat sample are total coliform positive, and one is also fecal coliform or E. coli positive

2012 Human and animal fecal waste

Nitrate (as Nitrogen) N ND-6900 ppb 10000 10000 2012 Runoff from fertilizer use; leaching from septic tanks, sewage; erosion of natural deposits

Fluoride N 200-700 ppb 4000 4000 2010 Erosion of natural deposits; water additive which promotes strong teeth; discharge from fertilizer and aluminum factories