Marshall Municipal Utilities

Inorganic Chemicals

Heath Concerns
Constituent	MCL	Result	Date	Frequency
Antimony	0.006	ND	7/5/05	Every 3 years
Arsenic	0.05	ND	7/5/05	Every 3 years
Asbestos	7 million fibers/liter	waiver	NA	Every 3 years
Barium	2	0.0393	7/5/05	Every 3 years
Beryllium	0.004	ND	7/5/05	Every 3 years
Cadmium	0.005	ND	7/5/05	Every 3 years
Chromium	0.1	0.0013	7/5/05	Every 3 years
Fluoride	4	1.18	3/10/08	Monthly
Mercury	0.002	ND	7/5/05	Every 3 years
Nickel	0.1	ND	7/5/05	Every 3 years
Nitrate	10	ND	6/18/07	Yearly
Total nitrate & nitrite	10	0.13	6/18/07	Yearly
Selenium	0.05	ND	7/5/05	Every 3 years
Thallium	0.002	ND	7/5/05	Every 3 years

Aesthetic Concerns
Constituent	SMCL	Result	Date	Frequency
Aluminum	0.05	ND	7/5/05	Every 3 years
Chloride	250	56.5	7/5/05	Every 3 years
Iron	0.3	0.04	7/5/05	Every 3 years
Manganese	0.05	0.002	7/5/05	Every 3 years
pH	6.5 - 8.5**	8.44**	7/5/05	Every 3 years
Silver	0.1	ND	7/5/05	Every 3 years
Sulfate	250	5.22	7/5/05	Every 3 years
Total dissolved solids	500	208	7/5/05	Every 3 years
Zinc	5	0.001	7/5/05	Every 3 years

Other Substances
Constituent	SMCL	Result	Date	Frequency
Calcium	NA	17.7	7/5/05	Every 3 years
Hardness	NA	112	7/5/05	Every 3 years
Magnesium	NA	16.4	7/5/05	Every 3 years
Potassium	NA<	2.9	7/5/05	Every 3 years
Sodium	NA	21.9	7/5/05	Every 3 years

**No units

Results, MCLs, and SMCLs are in parts per million (milligrams per liter) unless othewise noted.

MCL: Maximum contaminant level, the highest level of a contaminant that is allowed in drinking water

SMCL: The recommended highest level of a contaminant in drinking water

NA: Not applicable

ND: No detect of the substance

Samples are analyzed by the Department of Natural Resources' (DNR) laboratory or by a certified laboratory under contract to DNR.