Current through Register Vol. 49, No. 13, September 23, 2024
Subpart
1.
Standards.
Bottled water must be from an approved source and must not
contain anything in a quantity that may be injurious to health. Bottled water
must meet the standards in Minnesota Statutes, section
31.101,
subdivision 8, and other rules adopted by the department.
Subp. 2.
Microbiological
quality.
Bottled water must meet the standard of microbiological
quality in item A or B if a sample of analytical units of equal volume is
examined by the methods described in applicable sections of "Standard Methods
for the Examination of Water and Wastewater," 20th edition (1998), published by
the American Public Health Association. The commissioner may accept other
official methods of analysis when published in "Standard Methods for the
Examination of Water and Wastewater." That publication is incorporated by
reference, is not subject to frequent change, and is available through the
Minitex interlibrary loan system or from the American Public Health
Association, 800 I Street, Washington, D.C. 20001-3710.
A. Multiple-tube fermentation method. Not
more than one of the analytical units in the sample may have a most probable
number of 2.2 or more coliform organisms per 100 milliliters and no analytical
unit may have a most probable number of 9.2 or more coliform organisms per 100
milliliters.
B. Membrane filter
method. Not more than one of the analytical units in the sample may have 4.0 or
more coliform organisms per 100 milliliters and the arithmetic mean of the
coliform density of the sample may not exceed one coliform organism per 100
milliliters.
Subp. 3.
Physical quality.
Bottled water must meet the standards of physical quality in
items A to C if a composite of analytical units of equal volume from a sample
is examined by the method described in applicable sections of "Standard Methods
for the Examination of Water and Wastewater," 20th edition (1998), which is
incorporated by reference in subpart
2.
A. The turbidity must not exceed five
units.
B. The color must not exceed
15 units.*
C. The odor must not
exceed threshold odor No. 3.*
* Mineral water is exempt from the standard.
Subp. 4.
Chemical
quality.
A. If a composite of
analytical units of equal volume from a sample is examined by the methods
described in item B, bottled water must meet standards of chemical quality and
may not contain chemical substances in excess of the concentrations listed in
subitems (1) to (18), expressed in milligrams per liter:
(1) arsenic, 0.05;
(2) barium, 1.0;
(3) cadmium, 0.01;
(4) chloride*, 250.0;
(5) chromium, 0.05;
(6) copper, 1.0;
(7) iron*, 0.3;
(8) lead, 0.05;
(9) manganese*, 0.05;
(10) mercury, 0.002;
(11) nitrate, 10.0;
(12) organics:
(a) Endrin
(1,2,3,4,10,10-hexachloro-6,7-epoxy- 1,4,4a,5,6,7,8,8a-octa-hydro-1,4-endo,
endo-5,8-dimethane naphthalene), 0.0002;
(b) Lindane
(1,2,3,4,5,6-hexachloro-cyclohexane, gamma isomer), 0.004;
(c) Methoxychlor
(1,1,1-trichloro-2,2-bis[p-methoxy-phenyl] ethane), 0.1;
(d) total Trihalomethanes, 0.10;
(e) Toxaphene
(C10H10Cl8-technical
chlorinated camphene, 67 to 69 percent chlorine), 0.005;
(f) 2,4-D (2,4-dichlorophenoxyacetic acid),
0.1;
(g) 2,4,5-TP Silvex
(2,4,5-trichlorophenoxypropionic acid), 0.01;
(13) phenols, 0.001;
(14) selenium, 0.01;
(15) silver, 0.05;
(16) sulfate*, 250.0;
(17) total dissolved solids*,
500.0;
(18) zinc*, 5.0.
* Mineral water is exempt from the standard.
B. Analyses conducted
to determine compliance with this subpart must be made in accordance with the
methods described in the applicable sections of "Standard Methods for the
Examination of Water and Wastewater," 20th edition (1998), which is
incorporated by reference in subpart
2, or "Methods for Chemical
Analysis of Water and Wastes," Environmental Monitoring and Support Laboratory,
EPA-600/4-82-055, March 1983, United States Environmental Protection Agency.
Analyses for organic substances must be determined by appropriate methods
described in "Methods for Organochlorine Pesticides in Industrial Effluents"
and "Methods for Chlorinate Phenoxy Acid Herbicides in Industrial Effluents,"
November 28, 1973, and "Part I: The Analysis of Trihalomethanes in Finished
Waters by the Purge and Trap Method," Method 501.1 and "Part II: The Analysis
of Trihalomethanes in Drinking Water by Liquid/Liquid Extraction," Method 501.2
in Code of Federal Regulations, title 40, part 141, Appendix C.
Subp. 5.
Radiological
quality.
If a composite of analytical units of equal volume from a
sample is examined by the methods described in item D, bottled water must meet
standards of radiological quality in items A to D.
A. The bottled water may not contain a
combined radium-226 and radium-228 activity in excess of five picocuries per
liter of water.
B. The bottled
water may not contain a gross alpha particle activity (including radium-226,
but excluding radon and uranium) in excess of 15 picocuries per liter of
water.
C. The bottled water may not
contain beta particle and photon radioactivity from manmade radionuclides in
excess of that which would produce an annual dose equivalent to the total body
or any internal organ of four millirems per year calculated on the basis of an
intake of two liters of the water per day. If two or more beta- or
photon-emitting radionuclides are present, the sum of their annual dose
equivalent to the total body or to any internal organ may not exceed four
millirems per year.
D. Analyses
conducted to determine compliance with this subpart must be made in accordance
with the methods described in the applicable sections of "Standard Methods for
the Examination of Water and Wastewater," 18th edition (1991), which is
incorporated by reference in subpart
2, and "Interim Radiochemical
Methodology for Drinking Water," Environmental Monitoring and Support
Laboratory, EPA-600/4-75-008 (Revised), March 1976, United States Environmental
Protection Agency.
Subp.
6.
Volatile organic compounds.
A. Volatile organic compounds may not exceed
the levels listed in subitems (1) to (7), expressed in milligrams per liter:
(1) benzene, 0.005;
(2) carbon tetrachloride, 0.005;
(3) 1,2-dichloroethane, 0.005;
(4) 1,1-dichloroethylene, 0.007;
(5) 1,1,1-trichloroethane, 0.20;
(6) trichloroethylene, 0.005;
(7) vinyl chloride, 0.002.
B. Analyses conducted to determine
compliance with this subpart must be made in accordance with a relevant method
contained in "Methods for the Determination of Organic Compounds in Drinking
Water," ORD Publications, CERI, EPA/600/4-88/039, December 1988. Copies are
available from the National Technical Information Service, United States
Department of Commerce, 5285 Port Royal Road, Springfield, VA 22161.
(1) Method 502.1 - "Volatile Halogenated
Organic Compounds in Water by Purge and Trap Gas Chromatography" (applicable to
volatile organic compounds).
(2)
Method 502.2 - "Volatile Organic Compounds in Water by Purge and Trap Capillary
Column Gas Chromatography with Photoionization and Electrolytic Conductivity
Detectors in Series" (applicable to volatile organic compounds).
(3) Method 503.1 - "Volatile Aromatic and
Unsaturated Organic Compounds in Water by Purge and Trap Column Gas
Chromatography" (applicable to volatile organic compounds).
(4) Method 524.1 - "Volatile Organic
Compounds in Water by Purge and Trap Gas Chromatography/Mass Spectrometry"
(applicable to volatile organic compounds).
(5) Method 524.2 - "Volatile Organic
Compounds in Water by Purge and Trap Capillary Column Gas Chromatography/Mass
Spectrometry" (applicable to volatile organic compounds).
Statutory Authority: MS s
31.101;
31.11
