NR 809.837(7)(a)1. 1. Publish the reports in one or more local newspapers serving the area in which the public water system is located.

NR 809.837(7)(a)2. 2. Inform the customers that the reports will not be mailed, either in the newspapers in which the reports are published or by other means approved by the department.

NR 809.837(7)(a)3. 3. Make the reports available to the public upon request.

NR 809.837(7)(b) (b) The water supplier for a public water system serving 500 or fewer persons that has received a waiver under this subsection may forego the requirements of par. (a) 1. and 2. if they provide notice at least once per year to their customers by mail, door-to-door delivery or by posting in an appropriate location that the report is available upon request.

NR 809.837(8) (8) Retention of reports. Any public water systems subject to this subchapter shall retain copies of its consumer confidence report for no less than 3 years.

NR 809.837 History History: CR 09-073: cr. Register November 2010 No. 659, eff. 12-1-10; CR 15-049: am. (1), (3), Appendix A to Subchapter V Register March 2016 No. 723, eff. 4-1-16; CR 21-088: am. Appendix A to Subchapter V Register July 2022 No. 799, eff. 8-1-22.

- See PDF for table

Key:

AL =   Action Level

MCL =   Maximum Contaminant Level

MCLG =   Maximum Contaminant Level Goal

MFL =   million fibers per liter

MRDL =   Maximum Residual Disinfectant Level

MRDLG = Maximum Residual Disinfectant Level Goal

mrem/year = millirems per year (a measure of radiation
absorbed by the body)

N/A =   Not Applicable

NTU =   Nephelometric Turbidity Units (a measure of water clarity)

pCi/l =   picocuries per liter (a measure of radioactivity)

ppm =   parts per million, or milligrams per liter (mg/l)

ppb =   parts per billion, or micrograms per liter (g/l)

ppt =   parts per trillion, or nanograms per liter

ppq =   parts per quadrillion, or picograms per liter

TT =   Treatment Technique

subch. VI of ch. NR 809 Subchapter VI — Conditional Waivers and Variances

NR 809.90 NR 809.90 Conditional waivers.

NR 809.90(1) (1) General application requirements. A water supplier for a public water system may apply to the department for a conditional waiver for nonmicrobial contaminants respecting compliance with a maximum contaminant level or treatment technique requirement for a period up to 3 years if all of the following apply:

NR 809.90(1)(a) (a) One of the following situations exists:

NR 809.90(1)(a)1. 1. Because of the characteristics of the raw water sources which are reasonably available, the public water system cannot comply with a maximum contaminant level despite application of best technology, treatment techniques or other means generally available, taking costs into consideration.

NR 809.90(1)(a)2. 2. Compelling factors, which may include economic factors, indicate that the public water system cannot comply with a maximum contaminant level or treatment technique requirement for a limited period of time.