Testing conducted by Alloway Labs in Marion, Ohio.

ppb = parts per billion

ppm = parts per million

GREEN BAY

Zinc -- 110 ppb

Arsenic -- <3.0 ppb

Copper -- 120 ppb

Lead -- <2.0 ppb

Mercury -- <0.2 ppb

Nitrogen/Ammonia -- <0.05 ppm

Nitrate/Nitrite -- 0.27 ppm

Fluoride -- 1.37 ppm

CHILTON

Zinc -- 10 ppb

Arsenic -- <3.0 ppb

Copper -- <10ppb

Lead -- <2.0 ppb

Mercury -- <.2 ppb

Nitrogen/Ammonia -- < 0.05 ppm

Nitrate/Nitrite -- 23.1 ppm

Fluoride -- 0.13 ppm

CALUMET CITY

Zinc -- 260 ppb

Arsenic -- < 3.0 ppb

Copper -- < 10 ppb

Lead -- 9.6 ppb

Mercury -- < 0.2 ppb

Nitrogen/Ammonia -- 0.32 ppm

Nitrate/Nitrite -- 0.56 ppm

Fluoride -- 1.01 ppm

HAMMOND

Zinc -- 190 ppb

Arsenic -- < 3.0 ppb

Copper -- 13 ppb

Lead -- < 2.0 ppb

Mercury -- < 0.2 ppb

Nitrogen/Ammonia -- 0.49 ppm

Nitrate/Nitrite -- 0.64 ppm

Fluoride -- 1.23 ppm

EAST CHICAGO

Zinc -- 17 ppb

Arsenic -- < 3.0 ppb

Copper -- < 10 ppb

Lead -- < 2.0 ppb

Mercury -- < 0.2 ppb

Nitrogen/Ammonia -- < 0.05 ppm

Nitrate/Nitrite -- 0.43 ppm

Fluoride -- 1.17 ppm

GARY

Zinc -- 200 ppb

Arsenic -- < 3.0 ppb

Copper -- 37 ppb

Lead -- 4.6 ppb

Mercury -- < 0.2 ppb

Nitrogen/Ammonia -- 0.35 ppm

Nitrate/Nitrite -- 0.53 ppm

Fluoride -- 1.09 ppm

CHICAGO

Zinc -- 280 ppb

Arsenic -- < 3.0 ppb

Copper -- < 10 ppb

Lead -- < 2.0 ppb

Mercury -- < 0.2 ppb

Nitrogen/Ammonia -- < 0.05 ppm

Nitrate/Nitrite -- 0.37 ppm

Fluoride -- 1.07 ppm

MENOMINEE

Zinc -- 16 ppb

Arsenic -- 3.0 ppb

Copper -- 31 ppb

Lead -- < 2.0 ppb

Mercury -- < 0.2 ppb

Nitrogen/Ammonia -- < 0.05 ppm

Nitrate/Nitrite -- 0.24 ppm

Fluoride -- 0.97 ppm

KAUKAUNA

Zinc -- 590 ppb

Arsenic -- < 3.0 ppb

Copper -- 410 ppb

Lead -- < 2.0 ppb

Mercury -- < 0.2 ppb

Nitrogen/Ammonia -- 0.16 ppm

Nitrate/Nitrite -- < 0.10 ppm

Fluoride -- 2.16 ppm

BURNS HARBOR

Zinc -- 10 ppb

Arsenic -- < 3.0 ppb

Copper -- 43 ppb

Lead -- < 2.0 ppb

Mercury -- < 0.2 ppb

Nitrogen/Ammonia -- 0.25 ppm

Nitrate/Nitrite -- 0.50 ppm

Fluoride -- 1.22 ppm

PORTAGE

Zinc -- 110 ppb

Arsenic -- < 3.0 ppb

Copper -- 310 ppb

Lead -- < 2.0 ppb

Mercury -- < 0.2 ppb

Nitrogen/Ammonia -- 0.41 ppm

Nitrate/Nitrite -- 0.81 ppm

Fluoride -- 1.26 ppm

WHITING

Zinc -- 600 ppb

Arsenic -- < 3.0 ppb

Copper -- < 10 ppb

Lead -- 11 ppb

Mercury -- < 0.2 ppb

Nitrogen/Ammonia -- 0.17 ppm

Nitrate/Nitrite -- 0.82 ppm

Fluoride -- 0.97 ppm

CROWN POINT

Zinc -- 31 ppb

Arsenic -- < 3.0 ppb

Copper -- 110 ppb

Lead -- < 2.0 ppb

Mercury -- < 0.2 ppb

Nitrogen/Ammonia -- 0.40 ppm

Nitrate/Nitrite -- 0.61 ppm

Fluoride -- 0.16 ppm