Wisconsin Administrative Code › Department of Natural Resources › NR 800 - Environmental Protection - Water Supply › Chapter NR 810 - Requirements for the operation and maintenance of public water systems › Subchapter II - Surface Water Treatment and Groundwater Under the Direct Influence of Surface Water Treatment Operations › Section NR 810.39 - Reporting requirements

Current through June 24, 2024
(1) Water suppliers shall report sampling
				  schedules under s.
				  NR
				  809.332 and source water monitoring results under s.
				  NR
				  809.336 to the department unless they notify the
				  department that they will not conduct source water monitoring due to meeting
				  the criteria of s.
				  NR
				  809.331(4).
(2) Water suppliers for filtered systems
				  shall report the Cryptosporidium bin classification of their system to the
				  department as described in s.
				  NR
				  810.34.
(3) Water suppliers for unfiltered GWUDI
				  systems shall report the mean source water Cryptosporidium level of their
				  system to the department as described in s.
				  NR
				  810.36.
(4) Water suppliers for filtered and
				  unfiltered systems shall report disinfection profiles and benchmarks to the
				  department as described in s.
				  NR
				  810.32 prior to making a significant change in
				  disinfection practice.
(5) Water
				  suppliers for filtered and unfiltered systems shall report to the department in
				  accordance with the following table for any microbial toolbox options used to
				  comply with treatment requirements under s.
				  NR
				  810.35 or
				  810.36. Alternatively, the department
				  may approve a system to certify operation within required parameters for
				  treatment credit rather than reporting monthly operational data for toolbox
				  options.
Microbial Toolbox Reporting Requirements
Toolbox option
Systems shall submit the following
								information
On the following schedule
(1) Watershed control program (WCP)
(a) Notice of intention to develop a new or continue
								an existing watershed control program.
No later than 2 years before the applicable
								treatment compliance date in s.
								NR
								810.37.
(b) Watershed control plan.
No later than one year before the applicable
								treatment compliance date in s.
								NR
								810.37.
(c) Annual watershed control program status report.
Every 12 months, beginning one year after the
								applicable treatment compliance date in s.
								NR
								810.37.
(d) Watershed sanitary survey report.
For community water systems, every 3 years beginning
								3 years after the applicable treat-ment compliance date in s.
								NR
								810.37. For noncommunity water systems, every 5 years
								beginning 5 years after the applicable treat-ment compliance date in s.
								NR
								810.37.
(2) Alternative source/intake man-agement
Verification that system has relocated the intake or
								adopted the intake withdrawal procedure reflected in monitoring results.
No later than the applicable treatment com-pliance
								date in s.
								NR
								810.37.
(3) Presedimenta-tion
Monthly verification of the following: (a)
								Con-tinuous basin operation (b) Treatment of 100% of the flow (c) Continuous
								addition of a coagulant (d) At least 0.5-log mean reduction of influent
								turbid-ity or compliance with alternative department-approved performance
								criteria.
Monthly reporting within 10 days following the month
								in which the monitoring was con-ducted, beginning on the applicable treat-ment
								compliance date in s.
								NR
								810.37.
(4) Two-stage lime softening
Monthly verification of the following: (a) Chemical
								addition and hardness precipitation occurred in 2 separate and sequential
								softening stages prior to filtration (b) Both stages treated 100% of the plant
								flow.
Monthly reporting within 10 days following the month
								in which the monitoring was con-ducted, beginning on the applicable treat-ment
								compliance date in s.
								NR
								810.37.
(5) Bank filtration
(a) Initial demonstration of the following: 1.
								Unconsolidated, predominantly sandy aquifer 2. Setback distance of at least 25
								ft. (0.5-log credit) or 50 ft. (1.0-log credit).
No later than the applicable treatment com-pliance
								date in s.
								NR
								810.37.
(b) If monthly average of daily max turbidity is
								greater than one NTU then system shall report result and submit an assessment
								of the cause.
Report within 30 days following the month in which
								the monitoring was conducted, beginning on the applicable treatment com-pliance
								date in s.
								NR
								810.37.
(6) Combined fil-ter performance
Monthly verification of combined filter effluent
								(CFE) turbidity levels less than or equal to 0.15 NTU in at least 95% of the 4
								hour CFE measure-ments taken each month.
Monthly reporting within 10 days following the month
								in which the monitoring was con-ducted, beginning on the applicable treat-ment
								compliance date in s.
								NR
								810.37.
(7) Individual fil-ter performance
Monthly verification of the following: (a)
								Individual filter effluent (IFE) turbidity levels less than or equal to 0.15
								NTU in at least 95% of samples each month in each filter (b) No individual
								filter greater than 0.3 NTU in 2 consecutive readings 15 minutes apart.
Monthly reporting within 10 days following the month
								in which the monitoring was con-ducted, beginning on the applicable treat-ment
								compliance date in s.
								NR
								810.37.
(8) Demonstration of performance
(a) Results from testing following a department
								approved protocol. (b)As required by the department, monthly verifi-cation of
								operation within conditions of department approval for demonstration of
								performance credit.
(a) No later than the applicable treatment
								compliance date in s.
								NR
								810.37. (b)Within 10 days following the month in which
								monitoring was conducted, beginning on the applicable treatment compliance date
								in s.
								NR
								810.37.
(9) Bag filters and cartridge filters
(a) Demonstration that the following criteria are
								met: 1. Process meets the definition of bag or cartridge filtration; 2. Removal
								efficiency established through challenge testing that meets criteria in this
								chapter.
No later than the applicable treatment com-pliance
								date in s.
								NR
								810.37.
(b) Monthly verification that 100% of plant flow was
								filtered.
Within 10 days following the month in which
								monitoring was conducted, beginning on the applicable treatment compliance date
								in s.
								NR
								810.37.
(10) Membrane filtration
(a) Results of verification testing demonstrating
								the following: 1. Removal efficiency established through challenge testing that
								meets criteria in this chapter; 2. Integrity test method and parameters,
								including resolution, sensitivity, test frequency, control limits, and
								associated baseline.
No later than the applicable treatment com-pliance
								date in s.
								NR
								810.37.
(b) Monthly report summarizing the following: 1. All
								direct integrity tests above the control limit; 2. If applicable, any turbidity
								or alternative department-approved indirect integrity monitoring results
								triggering direct integrity testing and the corrective action that was taken.
Within 10 days following the month in which
								monitoring was conducted, beginning on the applicable treatment compliance date
								in s.
								NR
								810.37.
(11) Second stage filtration
Monthly verification that 100% of flow was filtered
								through both stages and that first stage was pre-ceded by coagulation step.
Within 10 days following the month in which
								monitoring was conducted, beginning on the applicable treatment compliance date
								in s.
								NR
								810.37.
(12) Slow sand filtration (as sec-ondary filter)
Monthly verification that both a slow sand filter
								and a preceding separate stage of filtration treated 100% of flow from surface
								water sources.
Within 10 days following the month in which
								monitoring was conducted, beginning on the applicable treatment compliance date
								in s.
								NR
								810.37.
(13) Chlorine dioxide
Summary of CT values for each day as described in s.
								NR
								810.46.
Within 10 days following the month in which
								monitoring was conducted, beginning on the applicable treatment compliance date
								in s.
								NR
								810.37.
(14) Ozone
Summary of CT values for each day as described in s.
								NR
								810.46.
Within 10 days following the month in which
								monitoring was conducted, beginning on the applicable treatment compliance date
								in s.
								NR
								810.37.
(15) UV
(a) Validation test results demonstrating operating
								conditions that achieve required UV dose.
No later than the applicable treatment com-pliance
								date in s.
								NR
								810.37.
(b) Monthly report summarizing the percentage of
								water entering the distribution system that was not treated by UV reactors
								operating within validated conditions for the required dose as specified in s.
								NR
								810.46.
Within 10 days following the month in which
								monitoring was conducted, beginning on the applicable treatment compliance date
								in s.
								NR
								810.37.