Chapter NR 809

NR 809.04 Note Note: Examples of transient non-community water systems include those serving taverns, motels, restaurants, churches, campgrounds and parks.

NR 809.04(89m) (89m) “Virus” means a virus of fecal origin which is infectious to humans by waterborne transmission.

NR 809.04(90) (90) “Waterborne disease outbreak” means the significant occurrence of acute infectious illness, epidemiologically associated with the ingestion of water from a public water system which is deficient in treatment or is supplied from a contaminated source, as determined by the department or other local or state agency.

NR 809.04(91) (91) “Water supplier” means any person who owns or operates a public water system.

NR 809.04(92) (92) “Wholesale system” means a public water system that treats source water as necessary to produce finished water and then delivers some or all of that finished water to another public water system. Delivery may be through a direct connection or through the distribution system of one or more consecutive systems.

NR 809.04(93) (93) “Year-round resident” means a resident who resides in the same living unit for 6 months per year or more.

NR 809.04 History History: CR 09-073: cr. Register November 2010 No. 659, eff. 12-1-10; corrections in (43) made under s. 13.92 (4) (b) 7., Stats., Register November 2010 No. 659; correction in (22) made under s. 13.92 (4) (b) 7., Stats., Register February 2012 No. 674; correction in (59) made under s. 13.92 (4) (b) 7., Stats., Register January 2013 No. 685; CR 15-049: cr. (2g), (2r), am. (5) to (8), (15), (19) (b), cr. (24m), am. (37), cr. (37m), (42m), (46m), (47g), (47r), am. (52), cr. (59m), am. (71), cr. (71m), (72m), (74m), renum. (93) to (89m), cr. (93) Register March 2016 No. 723, eff. 4-1-16; correction in (46m) made under s. 35.17, Stats., Register March 2016 No. 723; CR 21-088: cr. (59h) Register July 2022 No. 799, eff. 8-1-22.

NR 809.05 NR 809.05 Coverage. This chapter applies to each public water system, unless the public water system meets all of the following conditions:

NR 809.05(1) (1) Consists only of distribution and storage facilities and does not have any collection or treatment facilities.

NR 809.05(2) (2) Obtains all of its water from, but is not owned or operated by, a public water system to which the regulations in this chapter apply.

NR 809.05(3) (3) Does not sell water to any person.

NR 809.05 History History: CR 09-073: cr. Register November 2010 No. 659, eff. 12-1-10; CR 15-049: r. (4) Register March 2016 No. 723, eff. 4-1-16.

NR 809.06 NR 809.06 General requirements. Water suppliers shall conduct the minimum monitoring required by this chapter. The department may increase any monitoring requirements in this chapter, if the department determines that any increase is necessary to protect public health, safety or welfare. The department may require additional monitoring and analysis when necessary to verify water quality, treatment effectiveness, or to ensure representative sampling throughout an entire distribution system. The department may decrease any monitoring requirements in this chapter, if the department determines that such a decrease will not adversely affect protection of public health, safety or welfare.

NR 809.06 History History: CR 09-073: cr. Register November 2010 No. 659, eff. 12-1-10; CR 15-049: am. Register March 2016 No. 723, eff. 4-1-16.

subch. I of ch. NR 809 Subchapter I — Maximum Contaminant Levels, Monitoring and Analytical Requirements for Primary Drinking Water Contaminants

NR 809.07 NR 809.07 Maximum contaminant level goals for primary contaminants.

NR 809.07(1) (1) Maximum contaminant level goals (MCLGs) are zero for the following contaminants:

Giardia lamblia

Cryptosporidium

Legionella

Escherichia coli

Viruses

Lead

Arsenic

Chloroform

Bromodichloromethane

Bromoform

Bromate

Dichloroacetic acid

Combined radium-226 and radium-228

Beta particle and photon radioactivity

Gross alpha particle activity (excluding radon and uranium)

Uranium

NR 809.07(2) (2) Maximum contaminant level goals (MCLGs) which are less than the MCLs are as follows:

Acrylamide   0.00001

Alachlor   0.0004

Benzene   0.001

Benzo[a]pyrene   0.000002

Carbon tetrachloride   0.0003

Chlordane   0.00003

Chlorite   0.8

Dibromochoromethane   0.06

Dibromochloropropane   0.00003

Di(2-ethylhexyl)phthalate   0.003

1,2-Dichloroethane   0.0004

1,2-Dichloropropane   0.0005

Epichlorohydrin   0.004

Ethylene Dibromide   0.0000004

Heptachlor   0.000008

Heptachlor Epoxide   0.000004

Hexachlorobenzene   0.00002

Pentachlorophenol   0.0003

Polychlorinated biphenyls (PCBs)   0.000005

2,3,7,8-TCDD (Dioxin)   2 x 10-10

Tetrachloroethylene   0.0007

Thallium   0.0005

Toxaphene   0.00003

1,1,2-Trichloroethane   0.003

Trichloroethylene   0.003

Vinyl chloride   0.000015

NR 809.07(3) (3) MCLGs which equal the MCLs are as follows:

Atrazine, (total chlorinated residue)1   0.003

Antimony   0.006

Asbestos   7 Million fibers/L
  (longer than 10
  micrometers)

Barium   2

Beryllium   0.004

Cadmium   0.005

Carbofuran   0.04

Chromium   0.1

Copper   1.3

Cyanide(as free Cyanide)   0.2

2,4-D   0.07

Dalapon   0.2

o-Dichlorobenzene   0.6

para-Dichlorobenzene   0.075

1,1-Dichloroethylene   0.007

cis-1,2-Dichloroethylene   0.07

trans-1,2-Dichloroethylene   0.1

Dichloromethane   0.005

Di(2-ethylhexyl)adipate   0.4

Dinoseb   0.007

Diquat   0.02

Endothall   0.1

Endrin   0.002

Ethylbenzene   0.7

Fluoride   4.0

Glyphosate   0.7

Hexachlorocyclopentadiene   0.05

Lindane   0.0002