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Chapter NR 810
REQUIREMENTS FOR THE OPERATION AND MAINTENANCE OF
PUBLIC WATER SYSTEMS
NR 810.01   Applicability.
NR 810.015   Alternative requirements.
NR 810.02   Definitions.
Subchapter I — General Operations
NR 810.03   General operational requirements.
NR 810.04   Certified operator requirement.
NR 810.05   Required sampling and testing.
NR 810.06   Operational sampling.
NR 810.07   Operational reporting.
NR 810.08   Drinking water standards.
NR 810.09   General treatment and disinfection requirements.
NR 810.10   Distribution system normal pressure.
NR 810.11   Distribution system fire flow pressure.
NR 810.12   Distribution system loss of pressure.
NR 810.13   System maintenance.
NR 810.14   Water storage facility inspections.
NR 810.15   Cross connections and interconnections.
NR 810.16   Local well regulation program.
NR 810.17   Temporary water supply and pressure.
NR 810.18   System loss and unaccounted water.
NR 810.19   Discharge of system or backwash water.
NR 810.20   Approval of operational changes or maintenance projects.
NR 810.21   Unattended water treatment plant operation.
NR 810.22   Emergency well operation.
NR 810.23   Water system security and emergency operations.
NR 810.24   Water system capacity.
NR 810.25   Operation and maintenance manuals.
NR 810.26   Other requirements.
Subchapter II — Surface Water Treatment and Groundwater Under the Direct Influence of Surface Water Treatment Operations
NR 810.27   General requirements for all surface water and groundwater under the direct influence of surface water systems.
NR 810.28   Requirements for covers on water storage structures.
NR 810.29   Basic filtration requirements.
NR 810.295   Filter backwash handling.
NR 810.30   Criteria for avoiding filtration for groundwater under the direct influence of surface water systems.
NR 810.31   Disinfection requirements for Giardia lamblia and viruses.
NR 810.32   Disinfection profiling and benchmarking.
NR 810.33   Enhanced treatment requirements for Cryptosporidium.
NR 810.34   Cryptosporidium bin classification for filtered systems.
NR 810.35   Cryptosporidium treatment requirements for filtered systems.
NR 810.36   Cryptosporidium treatment requirements for groundwater under the direct influence of surface water systems that do not filter.
NR 810.37   Cryptosporidium treatment requirement compliance schedule.
NR 810.38   Monitoring requirements.
NR 810.39   Reporting requirements.
NR 810.40   Recordkeeping requirements.
Subchapter III — Toolbox Options for Meeting Enhanced Treatment for Cryptosporidium Requirements
NR 810.41   Microbial toolbox options.
NR 810.42   Source toolbox components.
NR 810.43   Pre-filtration treatment toolbox components.
NR 810.44   Treatment performance toolbox components.
NR 810.45   Additional filtration toolbox components.
Subchapter IV — Inactivation Toolbox Components and CT Tables
NR 810.46   Inactivation toolbox components.
NR 810.47   CT table for giardia when using free chlorine at 0.5nC or lower.
NR 810.48   CT table for giardia when using free chlorine at 5nC.
NR 810.49   CT table for giardia when using free chlorine at 10nC.
NR 810.50   CT table for giardia when using free chlorine at 15nC.
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Published under s. 35.93, Stats. Updated on the first day of each month. Entire code is always current. The Register date on each page is the date the chapter was last published.